250 conducts a layered drink making operation under control of the processing circuit 240 to cause the fluid output device 230 to dispense different fluid materials to the beverage container 102 according to a preprogrammed order, so as to automatically form a layered drink having at least two color layers within the beverage container 102.

For another example, when the control command generated by the user control interface 110 requests the automated beverage preparation apparatus 100 to prepare a predetermined sparkling drink, the pump control circuit 250 conducts a sparkling drink making operation under control of the processing circuit 240 to cause the fluid output device 230 to dispense different fluid materials to the beverage container 102 according to a preprogrammed order, so as to automatically form a sparkling drink having a predetermined flavor within the beverage container 102.

In practical applications, the touch screen 112 may be replaced with a display device which only has function for display. In another embodiment, the processing circuit 240 and the pump control circuit 250 may be integrated into a single control circuit. In another embodiment, the function of the processing circuit 240 and/or the pump control circuit 250 may be integrated in the touch screen 112.

The operation of making a layered drink conducted by the automated beverage preparation apparatus 100 will be further described in the following by reference to FIG. 4 through FIG. 8. FIG. 4 shows a simplified flowchart of a layered drink preparing method adopted by the automated beverage preparation apparatus 100 according to one embodiment of the present disclosure. FIGS. 5~8 show simplified schematic diagrams of a layered drink making operation conducted by the automated beverage preparation apparatus 100 according to one embodiment of the present disclosure.

As described previously, when the control command generated by the user control interface 110 requests the automated beverage preparation apparatus 100 to prepare a predetermined layered drink, the processing circuit 240 may adopt a layered drink preparing method shown in FIG. 4 to utilize the control signal to instruct the pump control circuit 250 to conduct a layered drink making operation.

In this situation, as shown in FIG. 5, the pump control circuit 250 may perform the operation 410 under control of the processing circuit 240 to actuate a first target pump subset in multiple pumps 221, 223, 225, 227 to cause the fluid output device 230 to dispense a first set of target fluid materials 510 having a density less than 110% of the density of water, so as to form a buffer layer 520 within the beverage container 102.

Depending on the kinds of fluid materials required for forming the buffer layer 520, the aforementioned first set of target fluid materials 510 may be a single kind of fluid material, or may be two or more than two kinds of fluid materials. Accordingly, the aforementioned first target pump subset may be a single pump, or may be two or more than two pumps.

If the density of the buffer layer 520 is too high, it is highly likely to cause a part of fluid materials of the buffer layer 520 to remain depositing on a bottom of the beverage container 102 during the subsequent beverage making operation. The situation may cause disturbance on subsequent beverage making operation, and may also cause negative impact on the visual effect of the resulting layered drink.

Accordingly, the aforementioned first set of target fluid materials 510 are mainly fluid materials having a density less than 110% of the density of water, such as drinking water, aerating water, sparkling water, tea, beer, coffee, soft drink, carbonated beverage, fruit juice, vegetable juice, malt wort, liquid material comprising animal milk (e.g. cow's milk, goat's milk, camel's milk, or the like), liquid material comprising alcohol (e.g., shochu, rice wine, vodka, gin, rum, tequila, whiskey, brandy, or the like), liquid material comprising sugar, liquid material comprising salt, liquid material comprising vinegar, liquid material comprising cocoa, liquid material comprising lactic acid, liquid material comprising plant extract, or liquid material comprising protein, or a combination of two or more than two of the aforementioned materials.

To make sure the density of the buffer layer 520 is not too high, during the operation of forming the buffer layer 520, the pump control circuit 250 does not actuate other pumps than the first target pump subset to cause the fluid output device 230 to not simultaneously dispense other fluid material having a density greater than 125% of the density of water to the beverage container 102.

According to the experiment results, if the thickness of the buffer layer 520 is smaller than 0.5 centimeter or greater than 7 centimeters, it is highly likely to cause negative impact on the mixing uniformity of different fluid materials to be added during the subsequent stage, and may also cause negative impact on the visual effect of the resulting layered drink.

Therefore, when the fluid output device 230 dispenses the first set of target fluid materials 510 for a first target amount or a first target time, the processing circuit 240 may instruct the pump control circuit 250 to perform the operation 420 to stop actuating the first target pump subset to cause the fluid output device 230 to stop dispensing the first set of target fluid materials 510, thereby keeping the thickness of the buffer layer 520 between 0.5 centimeter and 7 centimeters. For example, the thickness of the buffer layer 520 may be 0.5 centimeter, 0.7 centimeter, 1 centimeter, 1.5 centimeters, 1.8 centimeters, 2 centimeters, 2.5 centimeters, 3 centimeters, 3.5 centimeters, 4 centimeters, 4.5 centimeters, 5 centimeters, 5.5 centimeters, 6 centimeters, 6.5 centimeters, 7 centimeters, or the like.

In a period during which the fluid output device 230 dispenses the first set of target fluid materials 510 to the beverage container 102, the liquid surface of the buffer layer 520 would be at a turbulence state. Generally, at the time point when the fluid output device 230 stops dispensing the first set of target fluid materials 510, the fluctuation of the buffer layer 520 will not rest immediately.

However, according to the experiment results, if other fluid materials are added when the buffer layer 520 is still at a turbulence state, it is possible to cause negative impact on the mixing uniformity of the newly-added fluid materials.

Therefore, in this embodiment, when the fluid output device 230 dispenses the first set of target fluid materials 510 for the first target amount or the first target time, the processing circuit 240 may instruct the pump control circuit 250 to stop actuating all pumps for a predetermined time (e.g., 1 second, 1.2 seconds, 1.5 seconds, 1.8 seconds, 2 seconds, 2.5 seconds, or the like), so that the fluid output device 230 does not dispense any fluid material to the beverage container 102 during this time period, thereby mitigating the fluctuation level of the buffer layer 520, as shown in FIG. 5.

Afterwards, as shown in FIG. 6, the processing circuit 240 may instruct the pump control circuit 250 to perform the operation 430 to actuate a second target pump subset in the multiple pumps 221, 223, 225, 227, so as to cause the fluid output device 230 to dispense a second set of target fluid materials 610 comprising at least two fluid materials, so that the newly-added second set of target fluid materials 610 and the buffer layer 520 are mixed to form a first target fluid layer 620 within the beverage container 102.

Depending on the kinds of fluid materials required to be mixed at this stage, the aforementioned second set of target fluid materials 610 may be two kinds of fluid materials, or may be three or more than three kinds of fluid materials. Accordingly, the aforementioned second target pump subset may be two pumps, or may be three or more than three pumps. The pumps of the second target pump subset may be completely different from the pumps of the aforementioned first target pump subset, or may comprise a part of pumps of the first target pump subset.

The second set of target fluid materials 610 dispensed by the fluid output device 230 in the operation 430 may comprise at least one kind of first target fluid material having a density less than 110% of the density of water and at least one kind of second target fluid material having a density greater than 115% of the density of water.

The aforementioned first target fluid material may be drinking water, tea, coffee, soft drink, carbonated beverage, fruit juice, vegetable juice, malt wort, liquid material comprising animal milk (e.g., cow's milk, goat's milk, camel's milk, or the like), liquid material comprising alcohol (e.g., shochu, rice wine, vodka, gin, rum, tequila, whiskey, brandy, or the like), liquid material comprising sugar, liquid material comprising salt, liquid material comprising vinegar, liquid material comprising cocoa, liquid material comprising lactic acid, liquid material comprising plant extract, or liquid material comprising protein, or a combination of two or more than two of the aforementioned materials. The aforementioned second target fluid material may be various syrups, jams, chocolate sauces, peanut butters, lemonade, seasoning sauces, or the like.

When the second set of target fluid materials 610 dispensed by the fluid output device 230 falls into the beverage container 102, due to that the buffer layer 520 has already existed on the bottom of the beverage container 102, the fluid materials of the second set of target fluid materials 610 will not directly touch the bottom of the beverage container 102. Instead, the fluid materials of the second set of target fluid materials 610 will need to pass through the buffer layer 520 first to make it possible to touch the bottom of the beverage container 102.

Accordingly, the presence the buffer layer 520 can significantly reduce the speed and impact force when the fluid materials of the second set of target fluid materials 610 reaches the bottom of the beverage container 102. As a result, it can effectively prevent fluid materials having greater density (e.g., various syrups, jams, seasoning sauces, or the like) from sticking on the bottom of the beverage container 102 and consequently being difficult to mix well with other fluid materials.

From another aspect, the presence of the aforementioned buffer layer 520 can significantly increase the mixing uniformity of the second set of target fluid materials 610 and the first set of target fluid materials 510 within the beverage container 102, and manually stirring or utilizing other mixers for stirring is no longer required.

When the fluid output device 230 dispenses the second set of target fluid materials 610 for a second target amount or a second target time, the processing circuit 240 may instruct the pump control circuit 250 to perform the operation 440 to stop actuating the second target pump subset to cause the fluid output device 230 to stop dispensing the second set of target fluid materials 610. In practice, the pump control circuit 250 may stop actuating all pumps of the second target pump subset at the same time, or alternatively the pump control circuit 250 may first stop actuating a part of the pumps of the second target pump subset and then stop actuating other pumps of the second target pump subset after a short period of time. In other words, the fluid output device 230 may stop dispensing all fluid materials of the second set of target fluid materials 610 at the same time, or the fluid output device 230 may first stop dispensing a part of the fluid materials of the second set of target fluid materials 610 and then stop dispensing other fluid materials of the second set of target fluid materials 610 after a short period of time.

As shown in FIG. 7, after forming the first target fluid layer 620, the processing circuit 240 may instruct the pump control circuit 250 to perform the operation 450 to actuate a third target pump subset in the multiple pumps 221, 223, 225, 227, so as to cause the fluid output device 230 to dispense a third set of target fluid materials 710 having a color different from the color of the first target fluid layer 620 and having a density greater than a density of the first target fluid layer 620, thereby forming a second target fluid layer 720 having a color different from the color of the first target fluid layer 620 beneath the first target fluid layer 620.

Depending on the kinds of fluid materials required for creating the color of the second target fluid layer 720, the aforementioned third set of target fluid materials 710 may be a single kind of fluid material having a predetermined color, or may be two or more than two kinds of fluid materials having different colors. Accordingly, the aforementioned third target pump subset may be a single pump, or may be two or more than two pumps.

Since the density of the third set of target fluid materials 710 is greater than the density of the first target fluid layer 620, the second target fluid layer 720 formed from the third set of target fluid materials 710 will naturally sink beneath the first target fluid layer 620 and has a color different from the color of the first target fluid layer 620.

During the process of the newly-added third set of target fluid materials 710 sinking down, a part of the materials of the third set of target fluid materials 710 will mix into the first target fluid layer 620 due to diffusion. Accordingly, in some applications, the newly-added third set of target fluid materials 710 may be utilized to adjust the color of the first target fluid layer 620.

When the fluid output device 230 dispenses the third set of target fluid materials 710 for a third target amount or a third target time, the processing circuit 240 may instruct the pump control circuit 250 to perform the operation 460 to stop actuating the third target pump subset to cause the fluid output device 230 to stop dispensing the third set of target fluid materials 710. In practice, the pump control circuit 250 may stop actuating all pumps of the third target pump subset at the same time, or alternatively the pump control circuit 250 may first stop actuating a part of the pumps of the third target pump subset and then stop actuating other pumps of the third target pump subset after a short period of time. In other words, the fluid output device 230 may stop dispensing all fluid materials of the third set of target fluid materials 710 at the same time, or the fluid output device 230 may first stop dispensing a part of the fluid materials of the third set of target fluid materials 710 and then stop dispensing other fluid materials of the third set of target fluid materials 710 after a short period of time.

As shown in FIG. 8, after forming the second target fluid layer 720, the processing circuit 240 may instruct the pump control circuit 250 to perform the operation 470 to actuate a fourth target pump subset in the multiple pumps 221, 223, 225, 227, so as to cause the fluid output device 230 to dispense a fourth set of target fluid materials 810 having a color different from the color of the second target fluid layer 720 and having a density greater than the density of the second target fluid layer 720, thereby forming a third target fluid layer 820 having a color different from the color of the second target fluid layer 720 beneath the second target fluid layer 720.

Depending on the kinds of fluid materials required for creating the color of the third target fluid layer 820, the aforementioned fourth set of target fluid materials 810 may be a single kind of fluid material having a predetermined color, or may be two or more than two kinds of fluid materials having different colors. Accordingly, the aforementioned fourth target pump subset may be a single pump, or may be two or more than two pumps.

Since the density of the fourth set of target fluid materials 810 is greater than the density of the second target fluid layer 720, the third target fluid layer 820 formed from the fourth set of target fluid materials 810 will naturally sink beneath the second target fluid layer 720 and has a color different from the color of the second target fluid layer 720.

During the process of the newly-added fourth set of target fluid materials 810 sinking down, a part of the materials of the fourth set of target fluid materials 810 will mix into the first target fluid layer 620 and/or the second target fluid layer 720 due to diffusion. Accordingly, in some applications, the newly-added fourth set of target fluid materials 810 may be utilized to adjust the color of the first target fluid layer 620 and/or the color of the second target fluid layer 720.

When the fluid output device 230 dispenses the fourth set of target fluid materials 810 for a fourth target amount or a fourth target time, the processing circuit 240 may instruct the pump control circuit 250 to perform the operation 480 to stop actuating the fourth target pump subset to cause the fluid output device 230 to stop dispensing the fourth set of target fluid materials 810. In practice, the pump control circuit 250 may stop actuating all pumps of the fourth target pump subset at the same time, or alternatively the pump control circuit 250 may first stop actuating a part of the pumps of the fourth target pump subset and then stop actuating other pumps of the fourth target pump subset after a short period of time. In other words, the fluid output device 230 may stop dispensing all fluid materials of the fourth set of target fluid materials 810 at the same time, or the fluid output device 230 may first stop dispensing a part of the fluid materials of the fourth set of target fluid materials 810 and then stop dispensing other fluid materials of the fourth set of target fluid materials 810 after a short period of time.

In this way, the automated beverage preparation apparatus 100 is enabled to complete a preparing procedure of a layered drink having three different color layers. If it is desired that the layered drink within the beverage container 102 has more color layers, the processing circuit 240 may further instruct the pump control circuit 250 to repeat operations similar to that in the aforementioned operation 470 and operation 480 to actuate different pump subset to cause the fluid output device 230 to dispense another set of target fluid materials having a color different from the color of the currently bottommost fluid layer and having a density greater than the density of the currently bottommost fluid layer, so as to additionally form another target fluid layer having a different color from the color of the currently bottommost fluid layer beneath the currently bottommost fluid layer 720.

In practice, the automated beverage preparation apparatus 100 may be utilized to make sparkling layered drink (a.k.a. sparkling gradient drink). The operation of making a sparkling layered drink conducted by the automated beverage preparation apparatus 100 will be further described in the following by reference to FIG. 9 through FIG. 12. FIGS. 9~12 show simplified schematic diagrams of a layered drink making operation conducted by the automated beverage preparation apparatus 100 according to another embodiment of the present disclosure.

When the control command generated by the user control interface 110 requests the automated beverage preparation apparatus 100 to prepare a predetermined sparkling layered drink, the processing circuit 240 may similarly adopt the layered drink making operation shown in FIG. 4 to utilize the control signal to instruct the pump control circuit 250 to conduct a layered drink making operation.

In this situation, as shown in FIG. 9, the pump control circuit 250 may perform the operation 410 under control of the processing circuit 240 to actuate a first target pump subset in the multiple pumps 221, 223, 225, 227 to cause the fluid output device 230 to dispense a first set of target fluid materials 510 having a density less than 110% of the density of water, so as to form a buffer layer 520 within the beverage container 102.

The fluid materials required to form the buffer layer 520 of FIG. 9 and the method to form the buffer layer 520 of FIG. 9 are similar to those of the aforementioned buffer layer 520 of FIG. 5. For the sake of brevity, those descriptions will not be repeated here.

Therefore, when the fluid output device 230 dispenses the first set of target fluid materials 510 for a first target amount or a first target time, the processing circuit 240 also instructs the pump control circuit 250 to perform the operation 420 to stop actuating the first target pump subset to cause the fluid output device 230 to stop dispensing the first set of target fluid materials 510, thereby keeping the thickness of the buffer layer 520 between 0.5 centimeter and 7 centimeters. For example, the thickness of the buffer layer 520 may be 0.5 centimeter, 0.7 centimeter, 1 centimeter, 1.5 centimeters, 1.8 centimeters, 2 centimeters, 2.5 centimeters, 3 centimeters, 3.5 centimeters, 4 centimeters, 4.5 centimeters, 5 centimeters, 5.5 centimeters, 6 centimeters, 6.5 centimeters, 7 centimeters, or the like.

Additionally, when the fluid output device 230 dispenses the first set of target fluid materials 510 for the first target amount or the first target time, the processing circuit 240 also instructs the pump control circuit 250 to stop actuating all pumps for a predetermined time (e.g., 1 second, 1.2 seconds, 1.5 seconds, 1.8 seconds, 2 seconds, 2.5 seconds, or the like), so that the fluid output device 230 does not dispense any fluid material to the beverage container 102 during this time period, thereby mitigating the fluctuation level of the buffer layer 520, as shown in FIG. 9.

Afterwards, as shown in FIG. 10, the processing circuit 240 may instruct the pump control circuit 250 to perform the operation 430 to actuate a second target pump subset in the multiple pumps 221, 223, 225, 227, so as to cause the fluid output device 230 to dispense a second set of target fluid materials 1010 comprising at least two fluid materials, so that the newly-added second set of target fluid materials 1010 and the buffer layer 520 are mixed to form a sparkling first target fluid layer 1020 within the beverage container 102.

Depending on the kinds of fluid materials required to be mixed at this stage, the aforementioned second set of target fluid materials 1010 may be two kinds of fluid materials, or may be three or more than three kinds of fluid materials. Accordingly, the aforementioned second target pump subset may be two pumps, or may be three or more than three pumps.

The second set of target fluid materials 1010 dispensed by the fluid output device 230 in the operation 430 comprises at least one kind of sparkling fluid material, such as various aerating water, sparkling water, beer, soft drink, or carbonated beverage, or the like. Other fluid materials of the second set of target fluid materials 1010 may comprise the aforementioned first target fluid material and/or second target fluid material.

When the second set of target fluid materials 1010 dispensed by the fluid output device 230 falls into the beverage container 102, due to that the buffer layer 520 has already existed on the bottom of the beverage container 102, the fluid materials of the second set of target fluid materials 1010 will not directly touch the bottom of the beverage container 102. Instead, the fluid materials of the second set of target fluid materials 1010 will need to pass through the buffer layer 520 first to make it possible to touch the bottom of the beverage container 102.

Accordingly, the presence the buffer layer 520 can significantly reduce the speed and impact force of the fluid materials of the second set of target fluid materials 1010 when they reach the bottom of the beverage container 102. As a result, it can effectively prevent fluid materials having greater density (e.g., various syrups, jams, seasoning sauces, or the like) from sticking on the bottom of the beverage container 102 and consequently being difficult to mix well with other fluid materials.

From another aspect, the presence of the aforementioned buffer layer 520 can significantly increase the mixing uniformity of the second set of target fluid materials 1010 and the first set of target fluid materials 510 within the beverage container 102, and manually stirring or utilizing other mixers for stirring is no longer required.

As shown in FIG. 10, since the second set of target fluid materials 1010 comprises at least one kind of sparkling fluid material, not only that the first target fluid layer 1020 is a sparkling liquid layer, but also a bubble layer 1022 will form above the first target fluid layer 1020. In normal situation, the bubble layer 1022 primarily comprises carbon dioxide.

When the fluid output device 230 dispenses the second set of target fluid materials 1010 for a second target amount or a second target time, the processing circuit 240 may instruct the pump control circuit 250 to perform the operation 440 to stop actuating the second target pump subset to cause the fluid output device 230 to stop dispensing the second set of target fluid materials 1010. In practice, the pump control circuit 250 may stop actuating all pumps of the second target pump subset at the same time, or alternatively the pump control circuit 250 may first stop actuating a part of the pumps of the second target pump subset and then stop actuating other pumps of the second target pump subset after a short period of time. In other words, the fluid output device 230 may stop dispensing all fluid materials of the second set of target fluid materials 1010 at the same time, or the fluid output device 230 may first stop dispensing a part of the fluid materials of the second set of target fluid materials 1010 and then stop dispensing other fluid materials of the second set of target fluid materials 1010 after a short period of time.

As shown in FIG. 11, after forming the first target fluid layer 1020, the processing circuit 240 may instruct the pump control circuit 250 to perform the operation 450 to actuate a third target pump subset in the multiple pumps 221, 223, 225, 227, so as to cause the fluid output device 230 to dispense a third set of target fluid materials 710 having a color different from the color of the first target fluid layer 1020 and having a density greater than a density of the first target fluid layer 1020, thereby forming a second target fluid layer 720 having a color different from the color of the first target fluid layer 1020 beneath the first target fluid layer 1020.

The fluid materials required to form the second target fluid layer 720 of FIG. 11 and the method to form the second target fluid layer 720 of FIG. 11 are similar to those of the aforementioned second target fluid layer 720 of FIG. 7. For the sake of brevity, those descriptions will not be repeated here.

Since the density of the third set of target fluid materials 710 is greater than the density of the first target fluid layer 1020, the second target fluid layer 720 formed from the third set of target fluid materials 710 will naturally sink beneath the first target fluid layer 1020 and has a color different from the color of the first target fluid layer 1020.

During the process of the newly-added third set of target fluid materials 710 sinking down, a part of the materials of the third set of target fluid materials 710 will mix into the first target fluid layer 1020 due to diffusion. Accordingly, in some applications, the newly-added third set of target fluid materials 710 may be utilized to adjust the color of the first target fluid layer 1020.

When the fluid output device 230 dispenses the third set of target fluid materials 710 for a third target amount or a third target time, the processing circuit 240 may instruct the pump control circuit 250 to perform the operation 460 to stop actuating the third target pump subset to cause the fluid output device 230 to stop dispensing the third set of target fluid materials 710. Similarly, the pump control circuit 250 may stop actuating all pumps of the third target pump subset at the same time, or alternatively the pump control circuit 250 may first stop actuating a part of the pumps of the third target pump subset and then stop actuating other pumps of the third target pump subset after a short period of time. In other words, the fluid output device 230 may stop dispensing all fluid materials of the third set of target fluid materials 710 at the same time, or the fluid output device 230 may first stop dispensing a part of the fluid materials of the third set of target fluid materials 710 and then stop dispensing other fluid materials of the third set of target fluid materials 710 after a short period of time.

As shown in FIG. 12, after forming the second target fluid layer 720, the processing circuit 240 may instruct the pump control circuit 250 to perform the operation 470 to actuate a fourth target pump subset in the multiple pumps 221, 223, 225, 227, so as to cause the fluid output device 230 to dispense a fourth set of target fluid materials 810 having a color different from the color of the second target fluid layer 720 and having a density greater than a density of the second target fluid layer 720, thereby forming a third target fluid layer 820 having a color different from the color of the second target fluid layer 720 beneath the second target fluid layer 720.

The fluid materials required to form the third target fluid layer 820 of FIG. 12 and the method to form the third target fluid layer 820 of FIG. 12 are similar to those of the aforementioned third target fluid layer 820 of FIG. 8. For the sake of brevity, those descriptions will not be repeated here.

Since the density of the fourth set of target fluid materials 810 is greater than the density of the second target fluid layer 720, the third target fluid layer 820 formed from the fourth set of target fluid materials 810 will naturally sink beneath the second target fluid layer 720 and has a color different from the color of the second target fluid layer 720.

During the process of the newly-added fourth set of target fluid materials 810 sinking down, a part of the materials of fourth set of target fluid materials 810 will mix into the first target fluid layer 1020 and/or the second target fluid layer 720 due to diffusion. Accordingly, in some applications, the newly-added fourth set of target fluid materials 810 may be utilized to adjust the color of the first target fluid layer 1020 and/or the second target fluid layer 720.

When the fluid output device 230 dispenses the fourth set of target fluid materials 810 for a fourth target amount or a fourth target time, the processing circuit 240 may instruct the pump control circuit 250 to perform the operation 480 to stop actuating the fourth target pump subset to cause the fluid output device 230 to stop dispensing the fourth set of target fluid materials 810. Similarly, the pump control circuit 250 may stop actuating all pumps of the fourth target pump subset at the same time, or alternatively the pump control circuit 250 may first stop actuating a part of the pumps of the fourth target pump subset and then stop actuating other pumps of the fourth target pump subset after a short period of time. In other words, the fluid output device 230 may stop dispensing all fluid materials of the fourth set of target fluid materials 810 at the same time, or the fluid output device 230 may first stop dispensing a part of the fluid materials of the fourth set of target fluid materials 810 and then stop dispensing other fluid materials of the fourth set of target fluid materials 810 after a short period of time.

In this way, the automated beverage preparation apparatus 100 is enabled to complete a preparing procedure of a sparkling layered drink having three different color layers. If it is desired that the layered drink within the beverage container 102 has more color layers, the processing circuit 240 may further instruct the pump control circuit 250 to repeat operations similar to that in the aforementioned operation 470 and operation 480 to actuate different pump subset to cause the fluid output device 230 to dispense another set of target fluid materials having a color different from the color of the bottommost fluid layer and having a density greater than the density of the bottommost fluid layer, so as to additionally form another target fluid layer having a different color from the color of the currently bottommost fluid layer beneath the currently bottommost fluid layer.

As described previously, during the process in which the automated beverage preparation apparatus 100 makes a layered drink, the automated beverage preparation apparatus 100 will first form a buffer layer 520 within the beverage container 102, and then dispense other fluid materials to the beverage container 102 in order. In other words, the fluid output device 230 of the automated beverage preparation apparatus 100 dispenses the aforementioned second set of target fluid materials 610 (or 1010) to the beverage container 102 only after the buffer layer 520 is formed within the beverage container 102.

As can be appreciated from the foregoing descriptions, the presence of the buffer layer 520 can significantly reduce the speed and impact force when the fluid materials of the second set of target fluid materials 610 (or 1010) reaches the bottom of the beverage container 102. Accordingly, forming the buffer layer 520 within the beverage container 102 first can effectively prevent fluid materials having greater density (e.g., various syrups, jams, seasoning sauces, or the like) from sticking on the bottom of the beverage container 102 and consequently being difficult to mix well with other fluid materials.

In this way, it can prevent a part of materials of the second set of target fluid materials 610 (or 1010) from depositing on a bottom of the beverage container 102 and thereby disturbing the color of the second target fluid layer 720 to be formed in the subsequent stage.

From one aspect, the presence of the aforementioned buffer layer 520 can significantly increase the mixing uniformity of the second set of target fluid materials 610 (or 1010) within the beverage container 102, and manually stirring or utilizing other mixers for stirring is no longer required.

From another aspect, the presence of the aforementioned buffer layer 520 also prevents the color of some fluid layers of the layered drink from having unexpected change and consequently causing negative impact on the visual effect of the layered drink.

Comparing with the unideal layered drink making method, many advantages of the layered drink making method adopted by the aforementioned automated beverage preparation apparatus 100 would be easier to understand.

Therefore, unideal making methods of layered drink will be briefly described in the following by reference to FIG. 13 and FIG. 14. FIG. 13 shows a simplified schematic diagram of an unideal making operation of making a layered drink. FIG. 14 shows a simplified schematic diagram of another unideal making operation of making a layered drink.

As shown in FIG. 13, one of the unideal methods for making layered drink is adding a material having a greater density (e.g., the first-color syrup 1310) and another material having a lower density (e.g., the water 1312) into a beverage container 1302 at the same time to mix, so as to form a mixed liquid layer 1320. However, since the first-color syrup 1310 having the greater density will directly touch the bottom of the beverage container 1302 during the process in which the first-color syrup 1310 falls into the beverage container 1302, it is highly likely to cause a part of the first-color syrup 1310 to stick on the bottom of the beverage container 1302 and to form a layer of residual syrup 1330, and consequently being difficult to thoroughly mix well with the water 1312.

In this situation, if the mixed liquid layer 1320 and the residual syrup 1330 within the beverage container 1302 are not fully stirred manually or by utilizing other mixers prior to adding another material having a greater density (e.g., the second-color syrup 1314) into the beverage container 1302, the color of the second-color syrup 1314 which is supposed to sink beneath the mixed liquid layer 1320 may be disturbed by the color of the residual syrup 1330 which previously deposits on the bottom of the beverage container 1302, and thereby forming an undesired color layer 1340 having an undesired color. Such a result would obviously cause negative impact on the visual effect of the layered drink within the beverage container 1302, and probably even arouse the consumer's resentment.

As shown in FIG. 14, another unideal method for making layered drink is adding a material having a greater density (e.g., the first-color syrup 1410) and another aerated material having a lower density (e.g., the sparkling water 1412) into a beverage container 1302 at the same time to mix, so as to form an aerated mixed liquid layer 1420, along with a bubble layer 1422 above the aerated mixed liquid layer 1420.

However, since the first-color syrup 1410 having the greater density will directly touch the bottom of the beverage container 1302 during the process in which the first-color syrup 1410 falls into the beverage container 1302, it is highly likely to cause a part of the first-color syrup 1410 to stick on the bottom of the beverage container 1302 and to form a layer of the residual syrup 1430, and consequently being difficult to mix well with the sparkling water 1412.

In this situation, if the liquids within the beverage container 1302 are not well stirred manually or by utilizing other mixers prior to adding another material having a greater density (e.g., the second-color syrup 1414) into the beverage container 1302, the color of the second-color syrup 1414 which is supposed to sink beneath the aerated mixed liquid layer 1420 may be disturbed by the color of the residual syrup 1430 which previously deposits on the bottom of the beverage container 1302, and thereby forming an undesired color layer 1440 having an undesired color. Similarly, such a result would cause negative impact on the visual effect of the layered drink within the beverage container 1302, and probably even arouse the consumer's resentment.

In addition, as shown in FIG. 14, the method of adding the first-color syrup 1410 and the sparkling water 1412 into the beverage container 1302 at the same time further causes the thickness of the bubble layer 1422 within the beverage container 1302 to be much greater than that of the situation described in the aforementioned FIG. 10 through FIG. 12. This situation means that the carbon dioxide of the aerated mixed liquid layer 1420 is escaping rapidly. For a sparkling drink, the faster a rate at which the carbon dioxide dissipates from the drink, the shorter the duration this sparkling drink can retain good taste, and it also means that the tasting period of this sparkling drink is shorter.

Moreover, the method of adding the first-color syrup 1410 and the sparkling water 1412 into the beverage container 1302 at the same time also easily causes many bubbles sticked with syrup 1424 to appear within the bubble layer 1422. The bubbles sticked with syrup 1424 usually appear randomly and in varying quantities. Since in normal situations the first-color syrup 1410 added into the beverage container 1302 together with the sparkling water 1412 usually has a distinct color, the bubbles sticked with syrup 1424 that appear in the bubble layer 1422 often have an obvious color difference from the bubble layer 1422 itself. Such a result will make the bubble layer 1422 within the beverage container 1302 look noticeably dirty, which not only causes negative impact on the visual effect of the layered drink within the beverage container 1302, but may also cause some consumers to feel psychologically uncomfortable.

As can be appreciated from the foregoing descriptions, comparing with the unideal making methods of layered drink shown in FIG. 13 and FIG. 14, the aforementioned layered drink making method of FIG. 4 adopted by the automated beverage preparation apparatus 100 has many significant technical advantages.

Firstly, forming the buffer layer 520 within the beverage container 102 in advance can significantly reduce the speed and impact force of the fluid materials of the second set of target fluid materials 610 (or 1010) when they reach the bottom of the beverage container 102. Such approach can effectively prevent a part of fluid materials of the second set of target fluid materials 610 (or 1010) (e.g., various syrups, jams, seasoning sauces, or the like) from sticking on the bottom of the beverage container 102 and consequently being difficult to mix well with other fluid materials.

Secondarily, since the presence of the buffer layer 520 can prevent a part of materials of the second set of target fluid materials 610 (or 1010) from depositing on the bottom of the beverage container 102, it can also prevent the color of some fluid layers (e.g., the aforementioned second target fluid layer 720) of the layered drink from being disturbed and thereby having unexpected change.

In addition, since the presence of the buffer layer 520 can significantly increase the mixing uniformity of the second set of target fluid materials 610 (or 1010) within the beverage container 102, therefore manually stirring or utilizing other mixers for stirring the second set of target fluid materials 610 (or 1010) within the beverage container 102 is no longer required. Accordingly, by adopting the method shown in FIG. 4 to make layered drink, not only manual labor time can be saved, but also the need for any mixers is eliminated. Therefore, it can effectively reduce the volume of the automated beverage preparation apparatus 100 as well as the space required and the weight of the automated beverage preparation apparatus 100.

On the other hand, comparing with the unideal making operation of making a sparkling layered drink shown in FIG. 14, the method that the automated beverage preparation apparatus 100 first forms the buffer layer 520 within the beverage container 102 further effectively slows down the rate at which the carbon dioxide dissipates from the second set of target fluid materials 1010 within the beverage container 102, thereby it can extend the duration of good taste for the sparkling drink.

Furthermore, as shown in FIG. 9 through FIG. 12, when the automated beverage preparation apparatus 100 adopts the method of FIG. 4 to make the sparkling layered drink, it can further prevent bubbles sticked with syrup from appearing in the bubble layer 1022 within the beverage container 102, so it will not make the bubble layer 1022 appear dirty.

The operations of making a sparkling drink adopted by the automated beverage preparation apparatus 100 will be further described in the following by reference to FIG. 15 through FIG. 18. FIG. 15 shows a simplified flowchart of a sparkling drink preparing method adopted by the automated beverage preparation apparatus 100 according to one embodiment of the present disclosure. FIGS. 16~18 show simplified schematic diagrams of a sparkling drink making operation conducted by the automated beverage preparation apparatus 100 according to one embodiment of the present disclosure.

As described previously, when the control command generated by the user control interface 110 requests the automated beverage preparation apparatus 100 to prepare a predetermined sparkling drink, the processing circuit 240 may adopt a sparkling drink preparing method shown in FIG. 15 to utilize the control signal to instruct the pump control circuit 250 to conduct a sparkling drink making operation.

In this situation, as shown in FIG. 16, the pump control circuit 250 may perform the operation 1510 of FIG. 15 under control of the processing circuit 240 to actuate a first predetermined pump subset in the multiple pumps 221, 223, 225, 227 to cause the fluid output device 230 to dispense a first set of predetermined fluid materials 1610 having bubbles and having a density less than 120% of the density of water, so as to form an aerated liquid layer 1620 within the beverage container 102. In this situation, a bubble layer 1622 will be formed above the aerated liquid layer 1620. In normal situation, the bubble layer 1622 primarily comprises carbon dioxide.

Depending on the kinds of fluid materials required for forming the aerated liquid layer 1620, the aforementioned first set of predetermined fluid materials 1610 may be a single kind of sparkling fluid material (e.g., various aerating water, sparkling water, beer, soft drink, or carbonated beverage, or the like), or may be two or more than two kinds of fluid materials (and at least one of which is a sparkling fluid material). Accordingly, the aforementioned first predetermined pump subset may be a single pump, or may be two or more than two pumps.

In the operation of 1510, in order to prevent fluid materials having greater density from depositing on the bottom of the beverage container 102, the pump control circuit 250 does not actuate other pumps than the first predetermined pump subset to cause the fluid output device 230 to not simultaneously dispense other fluid material having a density greater than 125% of the density of water to the beverage container 102.

When the fluid output device 230 dispenses the first set of predetermined fluid materials 1610 for a first predetermined amount or a first predetermined time, the processing circuit 240 may instruct the pump control circuit 250 to perform the operation 1520 to stop actuating the first predetermined pump subset to cause the fluid output device 230 to stop dispensing the first set of predetermined fluid materials 1610. The pump control circuit 250 may stop actuating all pumps of the first predetermined pump subset at the same time, or alternatively the pump control circuit 250 may first stop actuating a part of the pumps of the first predetermined pump subset and then stop actuating other pumps of the first predetermined pump subset after a short period of time. In other words, the fluid output device 230 may stop dispensing all fluid materials of the first set of predetermined fluid materials 1610 at the same time, or the fluid output device 230 may first stop dispensing a part of the fluid materials of the first set of predetermined fluid materials 1610 and then stop dispensing other fluid materials of the first set of predetermined fluid materials 1610 after a short period of time.

As shown in FIG. 17, after forming the aerated liquid layer 1620, the processing circuit 240 may instruct the pump control circuit 250 to perform the operation 1530 to actuate a second predetermined pump subset in the multiple pumps 221, 223, 225, 227, so as to cause the fluid output device 230 to dispense a second set of predetermined fluid materials 1710 having a color different from the color of the aerated liquid layer 1620 and having a density greater than a density of the aerated liquid layer 1620, thereby forming a first predetermined fluid layer 1720 having a color different from the color of the aerated liquid layer 1620 beneath the aerated liquid layer 1620.

Depending on the kinds of fluid materials required for creating the color of the first predetermined fluid layer 1720, the aforementioned second set of predetermined fluid materials 1710 may be a single kind of fluid material having a predetermined color, or may be two or more than two kinds of fluid materials having different colors. Accordingly, the aforementioned second predetermined pump subset may be a single pump, or may be two or more than two pumps.

Since the density of the second set of predetermined fluid materials 1710 is greater than the density of the aerated liquid layer 1620, the first predetermined fluid layer 1720 formed from the second set of predetermined fluid materials 1710 will naturally sink beneath the aerated liquid layer 1620 and has a color different from the color of the aerated liquid layer 1620.

During the process of the newly-added second set of predetermined fluid materials 1710 sinking down, a part of the materials of the second set of predetermined fluid materials 1710 will mix into the aerated liquid layer 1620 due to diffusion. Accordingly, in some applications, the newly-added second set of predetermined fluid materials 1710 may be utilized to adjust the color of the aerated liquid layer 1620 within the beverage container 102.

When the fluid output device 230 dispenses the second set of predetermined fluid materials 1710 for a second predetermined amount or a second predetermined time, the processing circuit 240 may instruct the pump control circuit 250 to perform the operation 1540 to stop actuating the second predetermined pump subset to cause the fluid output device 230 to stop dispensing the second set of predetermined fluid materials 1710. Similarly, the pump control circuit 250 may stop actuating all pumps of the second predetermined pump subset at the same time, or alternatively the pump control circuit 250 may first stop actuating a part of the pumps of the second predetermined pump subset and then stop actuating other pumps of the second predetermined pump subset after a short period of time. In other words, the fluid output device 230 may stop dispensing all fluid materials of the second set of predetermined fluid materials 1710 at the same time, or the fluid output device 230 may first stop dispensing a part of the fluid materials of the second set of predetermined fluid materials 1710 and then stop dispensing other fluid materials of the second set of predetermined fluid materials 1710 after a short period of time.

In this way, the automated beverage preparation apparatus 100 is enabled to complete a preparing procedure of a basic sparkling drink having two different color layers.

If it is desired that the sparkling drink within the beverage container 102 has more color layers, the processing circuit 240 may further instruct the pump control circuit 250 to repeat operations similar to that in the aforementioned operation 1530 and operation 1540 to actuate different pump subset to cause the fluid output device 230 to dispense another set of predetermined fluid materials.

For example, as shown in FIG. 18, after forming the first predetermined fluid layer 1720, the processing circuit 240 may instruct the pump control circuit 250 to perform the operation 1550 of FIG. 15 to actuate a third predetermined pump subset in the multiple pumps 221, 223, 225, 227, so as to cause the fluid output device 230 to dispense a third set of predetermined fluid materials 1810 having a color different from the color of the first predetermined fluid layer 1720 and having a density greater than a density of the first predetermined fluid layer 1720, thereby forming a second predetermined fluid layer 1820 having a color different from the color of the first predetermined fluid layer 1720 beneath the first predetermined fluid layer 1720.

Depending on the kinds of fluid materials required for creating the color of the second predetermined fluid layer 1820, the aforementioned third set of predetermined fluid materials 1810 may be a single kind of fluid material having a predetermined color, or may be two or more than two kinds of fluid materials having different colors. Accordingly, the aforementioned third predetermined pump subset may be a single pump, or may be two or more than two pumps.

Since the density of the third set of predetermined fluid materials 1810 is greater than the density of the first predetermined fluid layer 1720, the second predetermined fluid layer 1820 formed from the third set of predetermined fluid materials 1810 will naturally sink beneath the first predetermined fluid layer 1720 and has a color different from the color of the first predetermined fluid layer 1720.

During the process of the newly-added third set of predetermined fluid materials 1810 sinking down, a part of the materials of the third set of predetermined fluid materials 1810 will mix into the aerated liquid layer 1620 and/or the first predetermined fluid layer 1720 due to diffusion. Accordingly, in some applications, the newly-added third set of predetermined fluid materials 1810 may be utilized to adjust the color of the aerated liquid layer 1620 and/or the first predetermined fluid layer 1720.

When the fluid output device 230 dispenses the third set of predetermined fluid materials 1810 for a third predetermined amount or a third predetermined time, the processing circuit 240 may instruct the pump control circuit 250 to perform the operation 1560 to stop actuating the third predetermined pump subset to cause the fluid output device 230 to stop dispensing the third set of predetermined fluid materials 1810. Similarly, the pump control circuit 250 may stop actuating all pumps of the third predetermined pump subset at the same time, or alternatively the pump control circuit 250 may first stop actuating a part of the pumps of the third predetermined pump subset and then stop actuating other pumps of the third predetermined pump subset after a short period of time. In other words, the fluid output device 230 may stop dispensing all fluid materials of the third set of predetermined fluid materials 1810 at the same time, or the fluid output device 230 may first stop dispensing a part of the fluid materials of the third set of predetermined fluid materials 1810 and then stop dispensing other fluid materials of the third set of predetermined fluid materials 1810 after a short period of time.

In this way, the automated beverage preparation apparatus 100 is enabled to complete a preparing procedure of a sparkling drink having three different color layers. If it is desired to have more color layers in the sparkling drink within the beverage container 102, the processing circuit 240 may further instruct the pump control circuit 250 to repeat operations similar to that in the aforementioned operation 1550 and operation 1560 to actuate different pump subset to cause the fluid output device 230 to dispense another set of predetermined fluid materials having a color different from the color of the bottommost fluid layer and having a density greater than the density of the bottommost fluid layer, so as to additionally form another predetermined fluid layer having a different color from the color of the currently bottommost fluid layer beneath the currently bottommost fluid layer.

Comparing with the unideal sparkling drink making method, many advantages of the sparkling drink making method adopted by the aforementioned automated beverage preparation apparatus 100 would be easier to understand.

Therefore, an unideal making method of sparkling drink will be briefly described in the following by reference to FIG. 19. FIG. 19 shows a simplified schematic diagram of an unideal making operation of making a sparkling drink.

As shown in FIG. 19, unideal method for making sparkling drink is to first add a material having a greater density (e.g., the first-color syrup