• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Post-mix soft drink dispensers for dispensing a mixture of carbonated water and flavored soft drink syrup in a prescribed mix ratio. Prior art devices have employed expensive and complex arrangements to compensate for pressure variations in the carbonated water supply line which causes a variance from the desired mix ratio. The present invention overcomes this deficiency by employing flow rate sensors which monitor the actual flow rate of the drink constituents and modulating the flow control valves based upon flow rates and the viscosity of the particular syrup. Separate syrup and water valves (13, 15) are modulated by a micro-processor control unit (27) which receives flow data from separate syrup and water flow meters (17, 19) and syrup viscosity data from a temperature sensing unit (85) and a syrup personality module. The apparatus is conveniently modified for use with different soft drink syrups by employing a separate removable personality module for each syrup, characterizing its prescribed mix ratio and its viscosity.
    公开号:SU1431693A3
    申请号:SU833558781
    申请日:1983-02-25
    公开日:1988-10-15
    发明作者:Паундер Эдвин；Павловский Майкл；Дж.Арена Алан；М.Тоттен Адриан
    申请人:Дзе Кока-Кола Компани (Фирма)；
    IPC主号:
    专利说明:

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    The invention relates to liquid distribution systems, in particular, systems for mixing two liquids in accordance with a predetermined relative proportion, as well as systems for supplying a liquid with a given average flow rate.
    In Fig. 1, an image of the invention: an apparatus for dispensing a mixture of a soft drink, axonometrics; Fig. 2 is a block diagram of a device for mixing soda water and non-alcoholic syrup in a predetermined proportion; FIG. 3 shows signal timing diagrams, connected with a syrup valve and a syrup flow meter; Fig. 4 shows timing charts of signals associated with a water valve and a water flow rate meter; FIGS. 5-8 show the program of the process steps carried out by the microprocessor of the distribution equipment in the distribution of a soft drink having a predetermined proportion of the mixture.
    The device 1. The distribution of the mixed non-alcoholic beverage is designed to mix and distribute the non-alcoholic syrup and soda water. In a given proportion and contains an actuating mechanism (valve) 2 of the syrup to activate
    and turning off the source of the syrup, and a water actuator (valve) 3 for turning the water source on and off, as well as the syrup flow sensor 4, which is Bbmie downstream of the syrup valve, for measuring the syrup flow rate and the flow sensor 5, upstream of the water valve and
    designed to measure the speedy g through line 13 to microprocessor 9.
    te flow of water. The syrup and water supplied through both valves are mixed in the mixing chamber 6 and p distributed through the distribution nozzle 7 (nozzle) into the drinking cup 8.
    The device also comprises control means comprising a ratio controller t executed in the form of a micro,
    processor 9 and designed to control the opening and closing of both the valve Z of the syrup and the water valve 3 with a predetermined working period such that the device 50
    55
    The latter, as appropriate, processes the signals of the pulsed sequence of syrup, which arrived from responsibly from sensors 4 and 5 of the syrup and water flow rates, and produces control signals of syrup and water for their subsequent supply to the corresponding valves 2 and 3 of the syrup and water to open closing them at appropriate times. Clusters are installed on pipelines 1 and 13 of the supply of each component (syr pa and water). The control signal is supplied on line 1 6 to the opto-separator.

    5 0 5
    0
    five
    0
    limit em nonalcoholic syrup and water in a given proportion of the mixture. Both valves open at the same time, with the syrup valve remaining open until it is about 4.5 cm (0.15 ounces) of syrup, and the water valve remains open during any period of time at which a given proportion of the mixture is maintained. This proportion is typically 3.5: 1 to 6.0: 1, depending on the particular syrup involved in the mixture. The highest water flow rate is higher than the highest syrup flow rate, which is due to the need to reduce the inequality between their respective working periods. As soon as the valves distribute the appropriate quantities of liquid, the period is repeated by re-opening simultaneously the valves of water and syrup. This periodicity continues until a corresponding amount of liquid is supplied to the cup 8.
    The syrup flow sensor 4 and the water flow sensor 5 are flow meters of the vane type, generating speed signals in the form of impulse sequences whose frequencies are proportional to the flow rates of the fluids passing through them.
    The pulse sequence signal generated by the syrup flow meter, via line 10, is fed to the buffer amplifier 11 to convert to the appropriate logic level, as well as to the microprocessor 9. Similarly, the pulse sequence signal produced by the water flow velocity meter is fed to the buffer amplifier. 12 as well
    on line 13 - to microprocessor 9.
    The latter appropriately processes the signals of the syrup pulse sequence, received respectively from sensors 4 and 5 of syrup consumption and water, and generates control signals for syrup and water to subsequently feed them to the corresponding valves 2 and 3 of syrup and water in order to open and close them at appropriate points in time. The valves are installed on pipelines 14 and 13 of the supply of each component (syrup and water). The control signal of the syrup is fed through line 1 6 to the optomode314
    Line 17, as well as on line 18, to triac 19, which supplies two corresponding control signals to valve 2 syrups along lines 20 and 21, with the aim of opening and closing the valve respectively. Similarly, a water control signal is supplied from pin 22 to opto-separator 23, as well as through line 24 to triac 25 of water, which outputs respectively two control signals for transmission on lines 26 and 27 to valve 3 of water c. the purpose of its closing and opening.
    Fig. 3 shows the signals connected to the syrup valve 2 and the syrup flow sensor 4, for one working period during which the syrup valve

    opens and closes and valve 3
    the water remains constantly open. Li-20 for next use. Averaging
    line A shows the syrup valve control signal for controlled opening of the syrup valve, line B for the syrup counting signal, source 9, line C for the pulse sequence generated by the syrup flow meter. During the period of the open state of the syrup valve, microprocessor 9 counts
    thirty
    used within the microprocessor 25. Four-period averaging is chosen based on the fact that this results in a complete rotation of the blade wheel speed meter.
    When the current number accumulated by the microprocessor. 9 syrup pulses will reach a predetermined maximum quantity at time D, the microprocessor stops producing a control signal from the syrup valve in order to close the syrup valve 2. The inaccurate time delay during the operation of the triac 19 syrup does not allow I to close the syro valve; For an indefinite delay time, shown at time E. The microprocessor sets the time for this actual closing by controlling the time period between successive pulses of the j signal of the syrup pulse sequence after it ends, the control signal of the syrup valve. In particular, he compares each of these successive periods with the average period in the memory, which was calculated earlier on the basis of the pulses from the sixth to the ninth. Once this period exceeds the average period with a coefficient of the order of 1.375 (time point F), the microprocessor determines that the valve is closed and stops its syrup counting enable signal to stop the counting of consecutive pulses.
    successive pulses of the syrup's pulse sequence signal and the controls: a syrup signal to close the syrup valve when the maximum specified number of pulses has been reached.
    Since the syrup valve 2 is controlled by triac 19, it is not reliable enough at the exact point in time at which the valve closes in response to the control signal from the syrup valve. To eliminate this unreliability, microprocessor 9 performs a special process for controlling the period between successive flow meter signals in order to determine the point in time when the impeller of the syrup flow rate sensor 4 is slowed down by a predetermined number of revolutions. He can then more accurately estimate the actual moment when the syrup valve is closed. The microprocessor then measures the time delay from the end of the control signal jj of the syrup valve to an estimate of the actual closing time of the valve and makes the appropriate setting of the control signal of the valve
    45
    50
    syrup during the next business cycle.
    The control signal of the syrup valve and the syrup counting enable signal are energized at time A (critical points on curve B in FIG. 3). As a result, the syrup valve 2 opens, and the syrup flow sensor 4 begins to generate a syrup pulse sequence signal in order to start counting via the microprocessor 9. Starting from the sixth pulse (time B) and continuing until the tenth pulse (time C), - the microprocessor averages, the period between the successive and the wheels and remembers this average value is delayed until the first pulses verify that the acceleration is provided, the paddle wheel to a stable angular velocity 30
    40 jj
    45
    40 jj
    50
    The number of pulses produced at the end of the control signal of the syrup valve before the end of the syrup counting resolution signal is the overflow count that is used to determine the corresponding maximum count for the next period, Ngshrimer, if the overflow count is particularly large, indicating that the valve 2 syrups scored only after a significant time delay, the score for the next period is reduced by
    co, the appropriate number to compensate for the 15 stop spill switch.
    over the amount of syrup dispensed through the syrup valve due to this additional time delay.
    Fig. 4 shows the signals associated with the water valve 3 and the flow rate sensor 5 of the water for one working period in which the water syringe is switched on and off and the syrup 2 remains in the on state continuously. The operation of these elements is similar in many ways to the operation of the corresponding elements related to the syrup. More specifically, the control signal of the water valve (line A) opens the water valve at time A, and soon the water flow meter starts to emit a pulse water sequence signal (line C), the Microprocessor 9 outputs successive pulses of the pulse sequence signal until An annihilating maximum countdown will be reached at time B, then it stops producing a control signal from the water valve to close the valve; water . Similar to the syrup flow sensor 4, the water flow sensor 5 continues to produce output pulses for a short period of time after the end of the corresponding valve control signal. The microprocessor counts these pulses for an additional period of 20 ms to the time point C. This additional count is an excess count that is used to calculate the specified maximum count for the next working period.
    The current period ends when microprocessor 9 finishes its
    overflow counting on a flow meter for liquids that has been turned off and reaches the maximum period counting for another fluid. If the beverage has not yet been fully dispensed, the microprocessor re-issues the control signals of the syrup and water valves at the beginning of the next working period.
    In addition, the device comprises four pushbutton switches 28 for selecting one of four differently dispersed beverage portions to be dispensed, the pushbutton
    which serves to either stop dispensing a drink, if one of the four portion size buttons (t, e, command cancellation) was previously pressed, or, if the button was not pressed, to issue the Drink while more press (t, e, spill) . The microprocessor 9 controls these various switches in the usual order, t, e, and i.e., the address lines 30 and data lines 31. The microprocessor opens and closes the valves 2 and 3 of the syrup and water, regardless of which particular valve is pressed. The difference in performance is the number of periods required to complete the delivery of a given drink,. Separate potentiometer 32 is connected to each of the two portions of switches (buttons) 28. These potentiometers are connected between positive voltage and ground and are used to manually adjust the portion of the beverage supplied when the corresponding switch is pressed.
    The microprocessor 9 periodically controls the voltages arising at the contacts of the four potentiometers 32 setting the portion size, the usual
    method, t, e, using multiplexer 33 and analog-to-digital converter 34, In particular, the potentiometers are connected via lines 35 to the four different input terminals of the multiplexer, and from the outputs of the microprocessor, the address signals are sent to the multiplexer 36 to select a specific potentiometer . The voltage on the selected potentiometer is used to supply via line 37 from the multiplexer to an analog-to-digital converter, which is influenced by four control signals fed on line 38 with mic
    71A31693
    The processor, converts the voltage into an appropriate 8-bit digital signal. In turn, the digital signal is fed through lines from an analog-to-digital converter to a microprocessor.
    The device is adapted for the use of various syrups, with each sequence varying not only with a change in the flow rate, but also depending on the viscosity. In addition, the viscosity of a syrup usually changes with temperature. This phenomenon poses a significant problem in such distributors of non-alcoholic drinks, as well as syrup. one of which has its own concentration {Q) passing through the flow meter
    viscosity versus temperature. As a means of modifying the device when using each of the named syrups, the device contains a removable personal module (not shown) of each syrup, containing information that characterizes this syrup. This eliminates the need for long manual adjustments each time the device is adapted to another non-alcoholic syrup.
    Each module has corresponding connections that allow the use of eight-bit data. Four bits are designed to determine the coarse proportion of the mix-for syrup, while the remaining four bits serve as the internal reference table in microprocessor 9, which characterizes the syrup viscosity depending on temperature. This latter information is used in interpreting the output signal of the pulse sequence by the syrup flow rate sensor 4. The microprocessor extracts information stored in the personal module using the same 304Q address lines: na and water, syrup temperature, and data lines 31, which are used for the four batch switches (buttons) 28 and the switch (buttons) 29 stop draining.
    The device also contains multi; 42. position switch (not shown),: A flowchart of the process steps,
    the same flow rate of syrup and water. The data signal is fed via line 40 from the microprocessor to the buffer amplifier 41 and is outputted by the distributor to
    designed to fine tune the coarse proportion of the mixture defined by the personal module. This multi-position switch is also read using the same address lines 30 and data lines 31 as for the portion and stop switches (buttons) 28 and 29, respectively.
    The unfavorable characteristic of the syrup flow sensor 4 and the water flow sensor 5 is that the frequencies of their output signals are pulsed
    syrup is often cooled by different amounts depending on the frequency of use of distribution devices i
    Therefore, the distributor also contains a syrup temperature sensor 39 mounted on one of the pipelines, designed to accurately determine the actual temperature and viscosity of the syrup passing through the syrup flow sensor 4. The microprocessor 9 periodically acts on the output voltage through a temperature sensor 39 using the same multiplexer 33 and analog-to-digital converter 34 that were used to control the four potentiometers 32 portion settings.
    After the dispenser 1 finishes dispensing the beverage, microprocessor 9 outputs a serial data signal, which is the contents of its various internal registers, intended for use by the control system. Information is stored in these registers, showing, for example, the number of freshly filled
    na and water, the temperature of the syrup, as well
    the same flow rate of syrup and water. The data signal is fed via line 40 from the microprocessor to the buffer amplifier 41 and is outputted by the valve 0.
    e
    microprocessor 9 when performing the functions described above, shown in figure 5-8. After a series of initial steps, depicted in the upper part of Fig. 5, the program proceeds either to the idle circuit, shown in the lower part of Fig. 5, or to the distribution contour shown in. 6. Typically, the program operates in a idle circuit and proceeds to the distribution circuit only when the actual delivery of the cap. Every 0.8 ms, irrespective of the specific program stage currently being executed, the program is interrupted and proceeds to the interrupt program shown in FIGS. 7-8. As shown in FIG. 5, the upper part of the drawing depicts a series of steps intended for initiating microprocessor operation 9 when the system is turned on for the first time or switched on again. The initial step 43 is set to zero a series of microprocessor internal registers used in the various operations described below. At step 44, the microprocessor determines whether it is correctly inserted: a removable personal i meddul characterizing the syrup to be dispensed into device 1. If it is inserted incorrectly, the program returns to the initial step of setting various internal registers. If the module is inserted correctly, the microprocessor extracts its eight The information bits in step 45, In step-e 46, a series of internal time setting devices are set to zero, thereby setting the system to the appropriate mode to begin distribution.
    After installation in the initial position of the microprocessor 9, the program proceeds to the idle circuit, which is shown in the lower half of FIG. 5. During each pass through the idle circuit, the microprocessor controls the distribution buttons 28 and 29 and either controls the multi-position switch to fine-tune the mix ratio or performs analog-to-digital conversion on the four batch tuning potentiometers 32. The initial idle circuit 47 determines whether one of the portion buttons 28 or the button 29, interrupting pouring. If they are not pressed, the program remains in the idle circuit, while with the button pressed, the program moves to the distribution contour (Fig. 6).
    If at step 47 it is determined that the button is not pressed, the program goes to step 48, where it is determined whether the multi-position switch is selected to finely adjust the proportion of the mixture relative to one of the four portioned tuning shadows of the 32 meters to control during through idle contour. If a multi-position switch is selected, step 49 returns the minimum water count from the specific lookup table defined by the personal module. Then step 50 sets the maximum water count i. a countdown that triggers the microprocessor 9 to turn the water valve 3, equal to the recovered minimum of the water count plus the countdown shown by the multi-position switch. This sum is stored in a given register in the microprocessor and it corresponds to the number of pulses from the water flow sensor 5, which are necessary to obtain the desired mixture of water and syrup for one working period, yes. The program then returns to the original blank step 47. contour.
    If, at step 48, it is determined that one of the four position positioning potentiometers 32 has been selected to be controlled during the passage; through the idle circuit, the program proceeds to step 51, where the analog-to-digital conversion is performed on the corresponding potentiometer. Then, at step 52, it is determined which potentiometer is selected — small and medium or other. If this is the case, then the last readout of the analog-to-digital conversion is stored on the spike 53 on the corresponding one of the internal registers in the microprocessor 9. This count is a series of increments of 4.5 cm (0.15 oz) of syrup or water must be set to create a drink of predetermined consistency. On the other hand, if at step 52 it is determined that a tuning potentiometer of small or medium portions is not selected, it is deduced that a tuning potentiometer of a large or redundant portion is selected. Then, in step 54, the analog-digital conversion count is multiplied by two and stored in the register of the corresponding capacity in the microprocessor. By multiplying by two, the resolution of the potentiometers is improved for small and medium portions. The program then returns to the initial step 47 of the idle circuit.
    The program remains in the idle circuit by performing a new analog-to-digital conversion on another of the four potentiometers on the portion batch or controlling the mix ratio switch during each pass through the idle circuit until it is determined in step 47 that distribution button 28 or button 29 is pressed. When this happens, the program proceeds to the distribution contour shown in FIG.
    The microprocessor 9 operates in the distribution circuit whenever the device 1 issues a beverage. The initial step 55 of the distribution contour determines whether the stop flow button 29 has just been pressed or not. If not, it is deduced that one of four buttons 28 portions is pressed, and in step 56 a count is set in the internal count register of the portion, equal to the portion in accordance with the pressure 30
    35
    that button. This portion size, us-, 20 no. On the other hand, if in a step it is tuned in an adjustable manner by one of four portion adjusting potentiometers 32. -On the other side, if it is determined on the claw 55,
    that the stop button is pushed, 25 times the calculation. in step 57, the sample count register is us- If in step 60 it is determined that it is tanned to zero. This sample count register shows the number of counts in increments of 4.5 cm that are left to create this drink.
    After the corresponding sample has been entered into the sample count register, internal syrup and water counts are set to zero in step 58 and internal syrup and water counters are preset to predetermined negative numbers corresponding to the number of pulses from the corresponding sensors 4 and 5 of the syrup and water flow, which must be dispensed for 4.5 cm of syrup or water to be dispensed. At step 58, the first cycle of syrup and water distribution also starts by transmitting the control signals of the valves, syrup and water to the syrup valve 2 and the water valve 3, respectively. At certain positions, it is necessary to delay the opening of the syrup valve to compensate for internal delays in dispensing water by the nozzle 7 of the mixing chamber 6.
    After the distribution device 1 has started dispensing both the water and the syrup, in step 59 it is determined whether or not the calculation flag is set. This feature is set in the interrupt master program (FIGS. 7 and 8)
    40
    45
    50
    55
    61 it is determined that the spill stop button is not pressed, the counting in the portion size counter is saved, and the program returns to the step, the syrup valve is turned off and the water valve is turned off, the program follows to the step, where it is determined whether the count is currently recorded in the register of the size of the portion, zero. If not, the microprocessor deduces that it is necessary to add an additional amount of syrup and water, so that the step resumes issuing the syrup and water, and the program returns to the initial step 59 of the calculation flag. On the other hand, if it is determined at the step that the portion size reading is equal to zero, the program proceeds to step 63, where it is determined whether or not the spill stop button 29 is still pressed. If pressed, the distribution of the syrup and water again begins at the step. If the spill stop button is not pressed, it is assumed that the beverage spill has ended and the program proceeds to step 64, where the data stored in the various internal registers of the microprocessor are appropriately formatted to feed through line 42 to the control system.
    At some point during each distribution period of 4.5 cm of syrup, the interrupt setting program (Fig.7 and 8) sets the calculation feature, and this fact is determined in step 59. Then in step 65 a number of functions are performed.
    at a given point of the distribution cycle so that certain calculations are performed at a given time. If a . The calculation flag is not set, the program proceeds to step 60, where microprocessor 9 determines whether the valves 2 and 3 are turned off, respectively, of the syrup and water. If this is not the case, it is displayed that the beverage is still being produced, and in step 61 it is determined whether the stop spill button 29 is pressed. If it is pressed, it is assumed that the operator wants to stop spilling the beverage and at step 62 a zero count is set in the portion size register. The program then returns to step 59, where it determines whether the calculation flag is set or.
    not. On the other hand, if on the step
    61 determines that the spill stop button is not pressed, the count in the chunk size counter is saved, and the program returns to step 10
    five
    5 ka calculations. If at step 60 it is determined that
    0
    five
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    five
    the syrup valve and the water valve are turned off, the program proceeds to a step where it is determined whether the count recorded at the moment in the batch size count register is equal to zero. If not, the microprocessor deduces that it is necessary to add an additional amount of syrup and water, so that the step resumes issuing the syrup and water, and the program returns to the initial step 59 of the calculation flag. On the other hand, if it is determined at the step that the portion size reading is equal to zero, the program proceeds to step 63, where it is determined whether or not the spill stop button 29 is still pressed. If pressed, the distribution of the syrup and water again begins at the step. If the spill stop button is not pressed, it is assumed that the beverage spill has ended and the program proceeds to step 64, where the data stored in the various internal registers of the microprocessor are appropriately formatted to feed through line 42 to the control system.
    At some point during each distribution period of 4.5 cm of syrup, the interrupt setting program (Fig.7 and 8) sets the calculation feature, and this fact is determined in step 59. Then in step 65 a number of functions are performed.
    to monitor the remaining part of the current spill cycle accordingly. In particular, at 65, the calculation attribute is set again and the analog-digital conversion of the output voltage by the temperature sensor 39 is performed. Using this temperature measurement, the viscosity of the syrup is determined in the specific reference table of temperature and viscosity specified by the original module for the syrup. Based on this viscosity value and average period
    The calculation for a given period of 15 times the pulse in order to reduce the internal duration determines the nominal maximum number of syrup pulses necessary to deliver 4.5 cm of syrup. Finally, in step 65, this nominal count is adjusted due to the excessive count remaining from the last spin of the spill. When the number of pulses of the syrup flow meter for the current distribution cycle reaches this count, the interrupt program closes the syrup valve 2. After the calculation is completed in step 65, the program returns to step 65 of the feature of the initial calculation.
    The interrupt driver program shown in Figs. 7 and 8 follows once every 0.8 ms, irrespective of the specific step of the idle circuit (Fig. 5) or the distribution circuit (Fig. 6) performed at a given time. In the general case, the interrupt program adds a series of time references and scans the pulse inputs of flow sensors 4 and 5, respectively, of syrup and water.
    As shown in FIG. 7, the initial step 66 of the master program, the interrupt determines whether there is a syrup count. If not, all the remaining steps shown in Fig. 7 are bypassed and the program follows the part of the interrupt master program shown in Fig. 8. On the other hand, if at step 66 it is determined that the syrup is counted, the program proceeds to step 67, where it is determined whether the output of the pulse was at the output after the step 70. the batch count was reduced, or after the step 69 it is determined that the counting in the preliminary recalculation circuit has not yet reached zero, the program proceeds to step 71 when it is determined whether the syrup valve 2 is open or not. If the valve is open, indicating that the syrup is still poured, the program proceeds to a series of steps that determine the average period of the pulse between the six pulse and the tenth pulse of the current spill cycle. In particular, at step 72 it is determined whether or not the syrup count is equal, i.e. the count of syrup pulses that appeared in the current spill cycle is six. If equal, then in step 73 the periodic timer is set to zero and it can
    50
    Pa with Sensor 4 syrup consumption in pre-burn start counting the time following
    0.8 ms long If not, then pro-four impulse periods, and then
    The gram bypasses all remaining steps, the program proceeds to the steps shown in Fig. 7, and follows the steps in Fig. 8. On the other hand, if din, shown in Fig.8.
    at step 72 it is determined that the countdown
    If it is determined at step 67 that the syrup pulse has been generated in the previous 0.8 ms, then the syrup pulse counter and the syrup recalculation circuit is supplemented in step 68, and the syrup error timer is restored. The syrup pulse counter is used to count the pulses in the output signal sequence via the syrup flow sensor 4 during the current spill cycle. The pre-counting circuit is reused to issue it0 5
    a portion counter each time the distribution device 1 poured the next 4.5 cm of syrup. The syrup error timer is used in the error recognition segment of the program described below. Then, in step 69, it is determined whether there is a simple pre-recalculation scheme. If it exists, then at step 70 the preliminary recalculation scheme is set to the countdown, which must be accumulated before it will be determined that the next e
    0
    0
    4.5 cm of syrup. In step 70, the count accumulated in the batch counter, in which, as noted earlier, is stored a number indicating the number of increments
    one
    4.5 cm, which should be drinks to make the selected beverage.
    After the portion count is reduced in step 70, or after it is determined in step 69 that the count in the preliminary counting circuit has not yet reached zero, the program proceeds to step 71 when it is determined whether or not syrup valve 2 is open. If the valve is open, indicating that the syrup is still poured, the program proceeds to a series of steps that determine the average period of the pulse between the six pulse and the tenth pulse of the current spill cycle. In particular, at step 72 it is determined whether or not the syrup count is equal, i.e. the count of syrup pulses that appeared in the current spill cycle is six. If equal, then in step 73 the periodic timer is set to zero and it can
    0
    nym on Fig. On the other hand, if
    at step 72 it is determined that the countdown
    the syrup is not equal to six, the program proceeds to step 74, where it is determined whether the syrup count is equal. If equal, in step 75 the timer is turned off and the calculation flag is set, which starts steps 59 and 65 when the program returns to the contour-, spill (Figure 5). After the sign of the calculations is established in step 75, the program proceeds to the steps shown in FIG. 8.
    If at step 74 it is determined that the syrup count is not equal to ten, the program proceeds to step 76, where it is determined whether the syrup count is equal to the calculated maximum syrup count. If it is not equal, then it is necessary to additionally pour out the syrup, and the program proceeds to the steps shown in Fig. 8. On the other hand, if in step 76 it is determined that the syrup count is not equal to the calculated maximum count, in step 77 the syrup valve 2 is closed and the syrup counter is set to zero. Also, a reference period of 1.375 average period of pulses shown by the periodic timer is computed (step 75), the periodic timer is again set to zero and the time of the next period of the pulse sequence can be set. Then the program proceeds to the steps shown in Fig. 8.
    When returning to step 71, if it is determined that the syrup valve 2 is closed means that the spill cycle has been completed and the excess calculation has been determined, step 78 compares the time period present in the periodic timer with the reference period calculated in step 77. If the last impulse period does not exceed this reference period, it is determined that the impeller of the syrup flow sensor 4 is still not significantly slowed down and there is still an excess period. On the other hand, if the period does not exceed the reference period, in step 79 the periodic counter is turned off and the syrup counter is turned off in order to finish counting the syrup pulses. The program then proceeds to the steps shown in Fig. 7.
    The remaining part of the interrupt program is shown in FIG. In the initial step, it is determined whether the water is counting. If the countdown does not go, the program
    0
    five
    0
    0
    five
    five
    0
    five
    0
    five
    proceeds to step 80, which adds all the various timers in microprocessor 9. On the other hand, if at step 81 it is determined that there is a water count, the program proceeds to step 82, where it is determined whether the water pulse occurred , 8 ms If it does, then in step 83 a pulse counter is added to the water and a water conversion counter, and a water error timer is set again. Then, at step 84, it is determined whether the water recalculation counter has reached zero, indicating that 4.5 cm of water has been poured after the last installation of the recalculation circuit. If it has reached, at recirculation 85 the recalculation circuit is set again so that the next segment of 4.5 cm and the portion count for the currently poured beverage is added. The program then proceeds to step 8G, where the current pulse count of the water is compared with the calculated maximal count for the present cycle. If it is equal to the calculated count, in step 87 the water valve 3 is closed, the water count is set to zero and the internal closing delay timer is turned on.
    After the Zakryshan delay timer is turned on in step 87, or after it is determined in step 87 that the water pulse did not occur in the preceding 0.8 ms, or after in step 86 it is determined that the water count is not equal to the calculated maximum count, the program proceeds to step 88, where it is determined whether the water valve 3 is open or not. If open, the program proceeds to step 80, where various timers are added. On the other hand, if it is determined that the water valve is turned off, at step 89 it is determined whether the sleep delay timer is idle. If idle, it is assumed that the distribution device 1 has reached time point C in FIG. 4, and in step 90 the further counting of water pulses is turned off. On the other hand, if the off delay timer is not idle yet, the program proceeds to step 80 of adding the timers.
    Finally, in step 9, it is determined whether the syrup error timer or water error timer has exceeded a predetermined time threshold by showing.
    that the wrong operation occurred in the corresponding 4 or 5 flow sensor. In particular, it may be that the flow sensor is locked in one position and therefore does not imply any pulses, or that the flow rate is excessively high, and in this case, the limitation of the signal flow sequence band of the flow sensor will decrease its amplitude, so that will become non- definable. If it is determined at step 91 that any timer has exceeded the preset threshold, at step 92
    sun off; distribution system. The program then returns to the position in which it was immediately before the jump to the time interruption program,
    The proposed device permits the dispensing of non-alcoholic beverages to a precise proportion of soda water and non-alcoholic syrup. Water and syrup are supplied using valves that are turned on and off individually with predetermined operating periods in order to reliably and accurately reproduce the desired proportion of the mixture.
    权利要求:
    Claims (1)
    [1]
    Invention Formula
    A device for controlling the composition of the mixture, containing flow sensors installed on the supply lines of each component, the inputs of which are connected to the ratio controller, the output of the latter under the actuator located on one of the pipelines, characterized in that distribution nozzle connected to pipelines for supplying components, a temperature sensor and an actuator mounted on another pipe, dp supplying components, with This temperature sensor is connected to a ratio controller, the second output of which is connected to an actuator installed on another pipeline.
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    同族专利:
    公开号 | 公开日
    EP0105301A4|1985-07-01|
    JPS59500369A|1984-03-08|
    CA1202102A|1986-03-18|
    AU1375883A|1983-09-08|
    MX158717A|1989-03-03|
    BR8300895A|1983-11-16|
    DE3376561D1|1988-06-16|
    ES531135A0|1984-12-16|
    PH19002A|1985-12-03|
    EP0105301B1|1988-05-11|
    ES8406964A1|1984-08-16|
    AU549741B2|1986-02-06|
    ZA83936B|1984-03-28|
    US4487333A|1984-12-11|
    ES8502059A1|1984-12-16|
    WO1983002935A1|1983-09-01|
    EP0105301A1|1984-04-18|
    ES520098A0|1984-08-16|
    JPH0123400B2|1989-05-02|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US06/352,753|US4487333A|1982-02-26|1982-02-26|Fluid dispensing system|
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