CN110456664B - Food processing machine - Google Patents
Food processing machine Download PDFInfo
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- CN110456664B CN110456664B CN201910565355.8A CN201910565355A CN110456664B CN 110456664 B CN110456664 B CN 110456664B CN 201910565355 A CN201910565355 A CN 201910565355A CN 110456664 B CN110456664 B CN 110456664B
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- 235000013305 food Nutrition 0.000 title claims abstract description 33
- 238000012545 processing Methods 0.000 title claims abstract description 11
- 230000006854 communication Effects 0.000 claims abstract description 36
- 238000004891 communication Methods 0.000 claims abstract description 35
- 238000001514 detection method Methods 0.000 claims description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 5
- 239000003990 capacitor Substances 0.000 claims description 3
- 238000004146 energy storage Methods 0.000 claims description 3
- 230000002265 prevention Effects 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 abstract description 33
- 238000000034 method Methods 0.000 description 19
- 230000008569 process Effects 0.000 description 15
- 230000008054 signal transmission Effects 0.000 description 8
- 238000010411 cooking Methods 0.000 description 5
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 235000013322 soy milk Nutrition 0.000 description 3
- 239000003381 stabilizer Substances 0.000 description 3
- 244000068988 Glycine max Species 0.000 description 2
- 235000010469 Glycine max Nutrition 0.000 description 2
- 230000007175 bidirectional communication Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 235000013336 milk Nutrition 0.000 description 2
- 239000008267 milk Substances 0.000 description 2
- 210000004080 milk Anatomy 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 235000015203 fruit juice Nutrition 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 235000015243 ice cream Nutrition 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 235000020166 milkshake Nutrition 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004537 pulping Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J43/00—Implements for preparing or holding food, not provided for in other groups of this subclass
- A47J43/04—Machines for domestic use not covered elsewhere, e.g. for grinding, mixing, stirring, kneading, emulsifying, whipping or beating foodstuffs, e.g. power-driven
- A47J43/07—Parts or details, e.g. mixing tools, whipping tools
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
- Food Science & Technology (AREA)
- Cookers (AREA)
Abstract
The invention discloses a food processing machine, which comprises a master control circuit board and a slave control circuit board, wherein the master control circuit board is communicated with the slave control circuit board, a power module is arranged on the master control circuit board, the power module outputs a first direct current power supply with voltage V1, and the first direct current power supply is electrically connected with the slave control circuit board through a power supply line. The communication signals on the slave control circuit board are subjected to current modulation through the characteristics of the constant current load, so that corresponding carrier transmission is completed, data signals are effectively transmitted, and resources are saved.
Description
Technical Field
The invention relates to the field of food processing, in particular to a food processing machine.
Background
The types of the current food processing machines are more and more, such as a broken food machine, a soybean milk machine and the like, and the functions and the forms are more and more, such as making soybean milk, fruit juice, ice cream/milk shake, crushed ice, rice paste, fine grinding, mincing meat and the like, and also such as arranging a motor on the upper part, arranging the motor on the lower part or displaying the operation side and the like, so that the multi-form and multi-function are caused, corresponding controls are required to be arranged at different positions, different controls need to communicate, in addition, the food processor has a plurality of working state signals which need to be collected by the collecting unit, such as an anti-overflow signal, a water level signal, a temperature signal, a cup body identification signal, a cover opening detection signal and the like, each working state signal of the existing food processor needs to be transmitted through a respective line or transmitted after being processed, but at least one transmission line bundle is added.
Use broken wall cooking machine as an example, it includes the frame and sets up the cup on the frame, is equipped with signal detection device in the cup, and signal detection device is including locating the signal acquisition unit that detects the operating condition signal of broken wall cooking machine, and the port transmission that passes through the coupler behind the operating condition signal of signal acquisition unit collection broken wall cooking machine is to the control power supply board in the frame, and the control power supply board is according to the concrete information output control signal control broken wall cooking machine work of operating condition signal. The mode of current transmission is, the coupler has a plurality of coupling ports, at least, there is a power port, a power supply for will controlling the power strip output transmits for signal acquisition unit, in addition, locate several signal acquisition units on the cup, then need set up several ways coupling ports on the coupler, transmission with the acquisition signal, the port quantity that leads to the coupler this moment is more, lead to the increase of the volume of coupler, its processing, manufacturing cost, installation complexity etc. all corresponding increase, simultaneously because the contact of coupler is connected, there is the decay to original signal, lead to the inaccurate problem of signal detection to exist.
Although the detection chip is arranged on the cup body and transmits acquired signals through the coupler port after the acquired signals are processed by the detection chip in the prior art, the detection chip and the control power panel need to be in two-way communication and also need two paths of coupling ports inevitably, so that the problem that the coupler design cannot be effectively solved is solved. In addition, although there is a method of wirelessly transmitting signals in the prior art, although this transmission method can solve the above problems, the cost is high, the wireless transmission causes problems such as signal accuracy, cost, and electromagnetic interference, and a mounting space is required for coil mounting and the like involved in the wireless transmission.
For the soymilk machine, corresponding problems also exist.
Disclosure of Invention
The invention aims to provide a food processor, which can overcome the defects and shortcomings in the prior art, transmits signals through a multiplexing power supply line and modulates communication signals on the power supply line by using the characteristic of a constant current load. The port of the coupler is fully and reasonably utilized, and the reliability of signal transmission is improved.
In order to achieve the purpose, the invention adopts the following technical scheme: a food processing machine comprises a master control circuit board and a slave control circuit board, wherein the master control circuit board is communicated with the slave control circuit board, a power module is arranged on the master control circuit board, the power module outputs a first direct current power supply with a voltage V1, and the first direct current power supply is electrically connected with the slave control circuit board through a power supply line.
Further, the current of the slave control constant-current load is I1, the line resistance of the power supply power line is R2, the resistance value of the first resistor is R1, the slave control power voltage of the slave control circuit board is V3, the differential voltage between the input voltage and the output voltage of the LDO regulator is Δ V3, and I1 < (V1-V3- Δ V3)/(R1+ R2).
Furthermore, the interruption pin of the master control chip is electrically connected with the first voltage comparator, the interruption pin of the slave control chip is electrically connected with the second voltage comparator, the master control chip receives the signal and then performs band-pass filtering, and the slave control chip receives the signal and then performs band-pass filtering.
Further, the slave control constant current load comprises a first slave control constant current load and a second slave control constant current load, the slave control chip detects the power supply power line in real time, judges the baseband signal voltage and selects the corresponding slave control constant current load according to the baseband signal voltage.
Furthermore, an LDO voltage regulator is arranged on the slave control circuit board, and the power supply line outputs the slave control power supply V3 through the LDO voltage regulator.
Further, the slave control power supply voltage is V3, and the voltage difference between the input voltage and the output voltage of the LDO regulator is Δ V3, wherein V1> V3+ Δ V3.
Further, a rectifying diode D1 and an energy storage capacitor C1 are disposed at an input end of the LDO regulator.
Further, the food processor comprises a load, and when the load works or voltage fluctuation can be generated in a specific working state, the communication between the master control chip and the slave control chip is adjusted.
Further, the food processor comprises a load, and when the master control chip is communicated with the slave control chip, the power of the load is kept unchanged.
Furthermore, a slurry temperature detection, an anti-overflow detection, a water level detection and a plate temperature detection are arranged on the slave control circuit board.
After the technical scheme is adopted, the invention has the following advantages: the weak current carrier signal transmission is carried out through the multiplexing power supply line, so that port resources for data transmission are saved, particularly when the multiplexing power supply line and the coupler are used for data transmission through the coupler, the coupler port is saved, and meanwhile, the cost and the size of the coupler are reduced, and the installation complexity is reduced. Secondly, the communication signals on the slave control circuit board are subjected to current modulation through the characteristics of the constant current load, so that corresponding carrier transmission is completed, data signals are effectively transmitted, and resources are saved.
Drawings
The invention will be further described with reference to the accompanying drawings in which:
FIG. 1 is a schematic block diagram of a control of a food processor of the present invention;
FIG. 2 is a schematic diagram of signal transmission status of a food processor according to the present invention;
FIG. 3 is a schematic block diagram of another control of a food processor of the present invention.
Detailed Description
A food processor, as shown in figure 1, comprises a master control circuit board and a slave control circuit board, wherein the master control circuit board is communicated with the slave control circuit board, a power supply module is arranged on the master control circuit board, in this embodiment, the power module is a switching power supply, which outputs a first dc power supply with a voltage V1, the first direct current power supply is electrically connected with the slave control circuit board through a power supply line, the master control circuit board modulates master control communication signals into carrier signals by taking the first direct current power supply as baseband signals and transmits the carrier signals to the slave control circuit board, the slave control circuit board is provided with an LDO voltage stabilizer, the carrier signal passes through the LDO voltage stabilizer and then is output to a slave control power supply, and the slave control circuit board is provided with a slave control chip and a second voltage comparator, and the carrier signal is demodulated by the second voltage comparator and then output to the slave control chip.
In the above process, the signal output after the carrier signal is demodulated by the second voltage comparator may be the same signal as the master control communication or a matched signal, so that the slave control chip can acquire the information transmitted by the master control chip.
In this embodiment, the food processor includes a first body and a second body which are separable, the master control circuit board can be on the first body, the slave control circuit board can be on the second body, and the slave control circuit board can be on the first body. With broken wall cooking machine, under general condition, first body is equivalent to the frame, and the second body is equivalent to the cup, and the main control circuit board sets up in the frame, follows the circuit board and sets up in the cup, and of course, if switching power supply is in the cup, the main control circuit board is the circuit board of setting on the cup.
In this embodiment, in addition to the master control circuit board transmitting the master control communication signal to the slave control circuit board and the slave control power supply, the slave control circuit board may also transmit the signal to the master control circuit board. As shown in fig. 1, a slave control constant current load is arranged on the slave control circuit board, the power supply line is electrically connected to the slave control constant current load, the slave control chip outputs a slave control communication signal to act on the slave control constant current load, a first resistor is arranged on the master control circuit board, the power supply line is connected to the first direct current power supply through the first resistor, and the power supply line is electrically connected to the master control chip through a first voltage comparator.
Of course, the signal transmission may be performed by the independent master control circuit board to the slave control circuit board, or the unidirectional communication may be performed by the independent slave control circuit board to the master control circuit board, or the bidirectional communication may be performed by the slave control circuit board to the master control circuit board, and the bidirectional communication is taken as an example in this embodiment.
In this embodiment, the specific working process is as follows:
1. the master control circuit board sends, receives from the master control circuit board:
the main control chip processes the main control communication signal into a square wave signal, and the process can be that the main control chip is internally provided with a corresponding square wave signal and outputs the corresponding square wave signal, or the main control chip forms the corresponding square wave signal through a main control constant current load. In this embodiment, the master communication signal processed by the master chip is a square wave signal with a high level of 0 and an amplitude of V2 as shown in fig. 2(a), and the voltage of the first dc power supply is V1 as shown in fig. 2(b), so that the carrier signal formed by the baseband signal and the master communication signal is shown in fig. 2(c), and the carrier signal is output from the operating power supply of the slave circuit board, i.e., the slave control voltage V3 through the LDO regulator, and V3 ensures the operation of the dc power supply devices on the slave circuit board, such as the slave control chip, the detection device, and so on. In addition, the carrier signal is demodulated by the second voltage comparator to output a signal as shown in fig. 2(d), wherein the voltage V4 is logically matched with V2, and the master communication signal can be known from the voltage V4 and the voltage V2. Here, the second voltage comparator output signal needs to match the logic level of the slave chip.
2. The slave control circuit board sends, and the master control circuit board receives:
the slave control chip processes information needing communication into a slave control communication signal, a slave control constant current load is controlled according to the signal condition of the slave control communication signal, the slave control constant current load and a first resistor form similar voltage division through a power supply line, the slave control constant current load is similar to the on-off of a switch, a current modulation state is formed on a loop, and therefore signals of high and low levels are formed on a main control circuit board end, and the main control chip processes the signals into signals usable by the main control chip through a first voltage comparator. Thus, the communication process of sending the slave control circuit board to the master control circuit board is completed.
In the present embodiment, since the voltage of the first dc power supply is a weak-current dc power supply and the voltage of the communication signal is also a weak-current digital signal, in order to ensure the accuracy of data transmission, in the present embodiment, V1> V2+ V3, at this time, V2 is the voltage of the master communication signal, and if it is a square wave signal with a high level of 0 and a low level of auxiliary V2, V1> V3-V2.
In this process, since the carrier signal needs to pass through the LDO output slave control power supply V3, and there is a voltage difference Δ V3 between the input and the output of the LDO regulator, V1> V3+ Δ V3+ V2. During transmission, the baseband signal V1 is output from the switching power supply, and there is generally corresponding fluctuation Δ V1, V1> V3+ Δ V3+ V2- Δ V1. Otherwise, the signal is mistransmitted due to the small pressure difference between the baseband signal voltage and the master control communication signal, which affects the normal work of the food processor.
Of course, if unidirectional signal transmission is adopted, for example, when only the slave control circuit board transmits signals to the master control circuit board through the constant current load, V2 is not available, and at this time, V1 needs to satisfy V1> V3+ Δ V3- Δ V1.
When the slave control circuit board transmits and the master control circuit board receives, the current of the slave control constant current load is I1, the wire resistance of the power supply power line is R2, the resistance value of the first resistor is R1, the voltage of the slave control power line is V3, the voltage difference between the input voltage and the output voltage of the LDO voltage stabilizer is delta V3, and I1 < (V1-V3-delta V3)/(R1+ R2). The proper constant current source is selected to accurately transmit data.
Specifically, in this embodiment, when the master control chip and the slave control chip receive signals, both the master control chip and the slave control chip use pins with an interrupt function, and perform decoding verification after performing band-pass filtering on signal data. The method can filter out interference signals outside the communication range, is beneficial to decoding and verifying signals in subsequent steps, and enhances the stability of carrier signal communication.
Of course, in this embodiment, both the slave control communication signal and the master control communication signal need to be transmitted after being subjected to the packet coding by the corresponding control chip, and are transmitted in the form of digital signals. In the process, signal data to be sent is added with a data frame head, a checksum and a frame tail and then is sent, specific signals are signals of temperature, circuit board temperature, overflow prevention, water level and the like, wherein the temperature signals do not continuously jump, the received temperature signals are detected according to the change continuity of the signals, and if the signals continuously jump, the abnormal signals are ignored. On the premise of meeting the real-time performance of data, arbitration and calculation are carried out according to the data of a plurality of data frames in a program to obtain an optimal sampling value. Adding a data for counting data packets except for transmitting effective data, adding 1 to the data by the chip every time the chip sends a frame of data, restarting circulation from 0 after 255, and judging the continuous condition of the data frames according to the counting data in the data frames after receiving the data.
This is because data needs to pass through the coupler, and the contact resistance of the coupler is unstable, and especially in the process of working of the electric load, corresponding vibration can be caused, the contact resistance of the upper coupler and the lower coupler is affected, communication data is possibly disordered, and the chip receives wrong data, so that the program operation is unstable, and a more serious result is caused. The traditional checksum method checks the situation that the checksum is correct with probability and the data in the frame is incorrect, and the use of a complex check algorithm can seriously affect the data transmission efficiency. The optimization scheme effectively avoids the condition that the transmission reliability of data is influenced due to the instability of a transmission path through multiple optimization and verification, and ensures the safety and reliability of the pulping process.
Of course, further, the slave control constant current loads include a first slave control constant current load and a second slave control constant current load, the slave control chip detects the power supply power line in real time and judges the baseband signal voltage, and selects the corresponding slave control constant current load according to the baseband signal voltage, since I1 < (V1-V3- Δ V3)/(R1+ R2), if the baseband voltage fluctuates unexpectedly, the corresponding slave control constant current load can be adjusted and selected timely to ensure the transmission reliability. The switching power supply is generally low in precision and weak in loading capacity, when the switching power supply is lightly loaded, the output voltage is higher, and when the switching power supply is heavily loaded, the output voltage is lower and fluctuates greatly. When V1 is higher, a larger constant current load is used; when V1 is low, a small constant current load is used. Therefore, when the voltage comparator is used, the reference voltage of the voltage comparator can be correspondingly controlled, so that a corresponding communication signal can be effectively demodulated, the voltage of a power supply line can be detected in real time, a voltage AD value queue is stored, the reference of the voltage comparator is dynamically adjusted according to the AD value queue, and the high and low levels of the communication signal are judged, wherein the reference comprises a first voltage comparator and a second voltage comparator.
In a food processor, there are electric and electric heating loads for food processing and other corresponding loads, and some loads generate large fluctuation in work process, such as a motor which is an inductive load, and there are vibration besides electromagnetic interference in work process, which has large influence on a coupler, so that all the loads can correspond to the accuracy of data transmission, and for signals to be transmitted, there are some signal accuracy requirements such as temperature signal overflow prevention signals, and therefore, in the transmission process, the transmission time needs to be adjusted according to specific situations.
For example, in the process of the operation of the motor, the frequency of data transmission is reduced, or data transmission is not performed, or for example, in the process of data transmission, the power of the load is ensured to be constant, and the voltage fluctuation caused by power change is reduced, or in the process of data transmission, the rotating speed of the motor is adjusted to be matched with the data transmission. Or in the working engineering of the motor, the communication frequency is adjusted to avoid the interference frequency band of the motor. In the present embodiment, the communication frequency is set below 9KHZ, thereby avoiding the interference range and optimizing the EMI effect of the food processor.
In addition, in order to reduce the standby power consumption of the food processor, in the standby state, the communication frequency can be reduced, the transmission time interval of each frame data is increased, and a high level is sent by default between two frames of data transmission to enable the corresponding constant current load to be closed.
In this embodiment, there are many possible ways for data transmission, taking the existing soymilk machine as an example, the soymilk machine comprises a machine head and a cup body, the machine head is buckled on the cup body, the cup body is provided with a socket for connecting a mains supply, a switch power supply is arranged on a circuit board in the cup body, namely a main control circuit board, a main control chip is arranged on the main control circuit board and is used for controlling a heating device arranged on the cup body and a motor in the machine head, the machine head and the cup body are provided with couplers, each coupler comprises a motor live wire, a motor zero wire and a ground wire which are used for controlling the motor, and a machine head power supply wire, the machine head circuit board is arranged in the machine head, that is, as shown in fig. 3, the slave control circuit board is provided with a slave control chip, and the slave control chip is used for spill-proof detection, temperature detection, water level detection, and board temperature detection, where the board temperature detection can reflect the operation condition of the motor. So, the master control circuit board communicates with the slave control circuit board, that is to say, master control chip and slave control chip carry out carrier communication through power supply line, master control chip can be with the signal on the cup to and the information transmission that the flow needs to carry out gives slave control chip, and slave control chip then need be with the temperature that detects, the spill proof, signals such as water level give master control chip, in addition, slave control chip also can carry out the control of motor, like this, master control chip then need be given slave control chip with the control command transmission to the motor. In addition, the display control can be arranged on the machine head or the cup body. Of course, the signal detection can also be arranged in the cup body. Are not listed here.
In the present embodiment, in order to better ensure that the input terminal of the LDO regulator is pulled down instantaneously when the power supply line is transmitting data, a rectifying diode D1 and an energy storage capacitor C1 are disposed at the input terminal of the LDO regulator.
The weak current carrier signal transmission is carried out through the multiplexing power supply line, so that port resources for data transmission are saved, particularly when the power supply line and the coupler carry out data transmission through the coupler, the coupler port is saved, and meanwhile, the cost and the size of the coupler are reduced, and the installation complexity is reduced. Secondly, the communication signal on the slave control circuit board is subjected to current modulation through the characteristic of the constant current load, so that corresponding carrier transmission is completed, data signal transmission is effectively carried out, and resources are saved
In addition, the carrier signal is output from the controlled power supply through the LDO voltage stabilization, so that the matching of the baseband signal output by the power supply module and the model is facilitated, the reliability of signal transmission is ensured, and meanwhile, the power supply is ensured, and at the moment, the carrier signal is demodulated through the voltage comparator to obtain the corresponding communication signal.
Other embodiments of the present invention than the preferred embodiments described above will be apparent to those skilled in the art from the present invention, and various changes and modifications can be made therein without departing from the spirit of the present invention as defined in the appended claims.
Claims (8)
1. A food processing machine comprises a main control circuit board and a secondary control circuit board, wherein the main control circuit board is communicated with the secondary control circuit board, a power module is arranged on the main control circuit board, the power module outputs a first direct current power supply with voltage V1, and the first direct current power supply is electrically connected with the secondary control circuit board through a power supply line, the food processing machine is characterized in that a main control chip and a first voltage comparator are arranged on the main control circuit board, the main control chip is connected with the first voltage comparator, a secondary control chip and a second voltage comparator are arranged on the secondary control circuit board, the secondary control chip is connected with the second voltage comparator, a secondary control constant current load is arranged on the secondary control circuit board, the power supply line is electrically connected with the secondary control constant current load, the secondary control chip outputs a secondary control communication signal to act on the secondary control constant current load, and a first resistor is arranged on the main control circuit board, the power supply line is electrically connected with the first direct-current power supply through a first resistor, the power supply line is electrically connected with a main control chip through a first voltage comparator, the current of the slave control constant-current load is I1, the line resistance of the power supply line is R2, the resistance value of the first resistor is R1, the slave control power supply voltage of the slave control circuit board is V3, an LDO (low dropout regulator) is arranged on the slave control circuit board, the power supply line outputs the slave control power supply voltage V3 through the LDO regulator, the voltage difference between the input voltage and the output voltage of the LDO regulator is delta V3, and I1 < (V1-V3-delta V3)/(R1+ R2).
2. The food processor of claim 1, wherein the interrupt pin of the master control chip is electrically connected to the first voltage comparator, the interrupt pin of the slave control chip is electrically connected to the second voltage comparator, the master control chip performs bandpass filtering after receiving the signal, and the slave control chip performs bandpass filtering after receiving the signal.
3. The food processor of claim 1, wherein the slave-controlled constant-current loads comprise a first slave-controlled constant-current load and a second slave-controlled constant-current load, and the slave control chip detects the power supply line in real time, determines the baseband signal voltage, and selects the corresponding slave-controlled constant-current load according to the baseband signal voltage.
4. The food processor of claim 1, wherein V1> V3+ Δ V3.
5. The food processor of claim 4, wherein the input of the LDO regulator comprises a rectifying diode D1 and an energy storage capacitor C1.
6. The food processor of claim 1, comprising a load that regulates communication between the master control chip and the slave control chip when the load is operating or when voltage fluctuations may occur in a particular operating state, the load being an electrical load and/or an electrical thermal load.
7. The food processor of claim 1, wherein the food processor includes a load, wherein the power of the load remains unchanged when the master control chip communicates with the slave control chip, and wherein the load is an electrical load and/or an electrical thermal load.
8. The food processor of claim 1, wherein the slave circuit board is configured with a slurry temperature detection, an overflow prevention detection, a water level detection, and a board temperature detection.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910565355.8A CN110456664B (en) | 2019-06-27 | 2019-06-27 | Food processing machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910565355.8A CN110456664B (en) | 2019-06-27 | 2019-06-27 | Food processing machine |
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| CN110456664A CN110456664A (en) | 2019-11-15 |
| CN110456664B true CN110456664B (en) | 2022-04-05 |
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| CN112806842B (en) * | 2019-11-18 | 2022-10-04 | 九阳股份有限公司 | Pressure cooking utensil with split-type connected upper cover and cooking control method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103479243A (en) * | 2013-09-16 | 2014-01-01 | 九阳股份有限公司 | Safe food processor |
| CN107928418A (en) * | 2017-12-29 | 2018-04-20 | 九阳股份有限公司 | A kind of soy bean milk making machine using brshless DC motor |
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| CN103118075B (en) * | 2013-01-11 | 2015-06-24 | 江庆 | Collection server achieving multi-way transmission of collected data |
| CN103648220A (en) * | 2013-12-23 | 2014-03-19 | 东莞市奥普特自动化科技有限公司 | Controller for automatically detecting maximum working current of light source and detection method thereof |
| CN204215548U (en) * | 2014-09-29 | 2015-03-18 | 江苏沁恒股份有限公司 | A kind of intelligent controlling device for appliance terminal |
| CN105515616B (en) * | 2016-01-15 | 2018-10-16 | 伟创力管理（上海）有限公司 | A kind of direct current supply line carrier communication system and communication means |
| CN106326174B (en) * | 2016-08-31 | 2019-01-29 | 宋红波 | A kind of two line telecommunication circuits |
-
2019
- 2019-06-27 CN CN201910565355.8A patent/CN110456664B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103479243A (en) * | 2013-09-16 | 2014-01-01 | 九阳股份有限公司 | Safe food processor |
| CN107928418A (en) * | 2017-12-29 | 2018-04-20 | 九阳股份有限公司 | A kind of soy bean milk making machine using brshless DC motor |
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