Soft bean curd production monitoring system and use method thereof

Abstract

The invention discloses a soft bean curd production monitoring system and a use method thereof. The system comprises a bean soaking module, a grinding module, a boiling module, a curdling module, a pressing and cutting module, a packaging module, a cloud server and a mobile phone mobile terminal. The bean soaking module, the grinding module, the boiling module, the curdling module, the pressing and cutting module and the packaging module are used for respectively collecting process data of a bean soaking process, a grinding process, a boiling process, a curdling process, a pressing and cutting process and a packaging process in soft bean curd production; and the cloud server performs calculation according to a bean soaking duration empirical formula, a soft bean curd quality evaluation index formula, a production efficiency formula and an expected income formula, and displays the result to a production manager of the mobile phone mobile terminal, so that production process monitoring and production result evaluation are automatically completed. The method has the advantages that soft beancurd production process monitoring control and generation result evaluation are integrated, and lean management of the total amount, the quality grade, the production efficiency and the expected income of soft beancurd is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of food production monitoring, and particularly to a water tofu production monitoring system and its usage method. Background Art

[0002] Water tofu is a traditional soy protein product with rich nutrition, good quality and low price, unique flavor and long history. Its advantages of high protein, low fat, low calories and zero cholesterol are deeply loved by people. However, problems such as cumbersome tofu production and processing technology, long time consumption, low production rate, easy loss of nutrition with pulp water and bean dregs, mainly manual operation in production detection, and difficult to guarantee the quality of water tofu are becoming increasingly prominent. How to implement a real-time intelligent monitoring system in the production and processing of water tofu has become a key issue.

[0003] Currently, patents on water tofu mainly focus on the production methods and production machinery and equipment of water tofu. For example, Chinese Patent CN116138398A discloses a yellow soybean vinegar water tofu and its production method, which improves the nutritional value of tofu by adding strawberry juice and apple juice. Another example is Chinese Patent CN116326728A, which discloses a water tofu processing technology and a pulp and clear separation device, and completes the pulp and clear separation through mechanical equipment, improving the production efficiency. However, how to effectively use information technology to monitor the water tofu production process, evaluate the production results, and complete automated, intelligent and lean production management is an urgent technical problem to be solved. Summary of the Invention

[0004] In view of this, the present invention proposes a water tofu production monitoring system and its usage method to solve the problems of real-time monitoring of the processes of soaking soybeans, grinding soybeans, boiling soy milk, curdling and squatting curd, pressing and cutting, and packaging in the existing water tofu production process, determination of quality grades, calculation of production efficiency and expected benefits, and remote lean management.

[0005] The technical solution of the present invention is implemented as follows:

[0006] On the one hand, the present invention provides a water tofu production monitoring system, including a soybean soaking module, a soybean grinding module, a soy milk boiling module, a curdling and squatting curd module, a pressing and cutting module, a packaging module, a cloud server and a mobile phone terminal;

[0007] The soybean soaking module is installed beside the soybean soaking barrel and is connected to the cloud server through a 4G / 5G network, and is used for collecting data of soybean humidity, water temperature, water cleanliness and soybean soaking duration, and sending them to the cloud server;

[0008] The soybean grinding module is installed beside the grinder and is connected to the cloud server through a 4G / 5G network, and is used for collecting data of grinder speed and soy milk concentration, and sending them to the cloud server;

[0009] The cooking module is installed beside the cooking pot and connected to the cloud server via 4G / 5G network. It is used to collect data such as cooking temperature, cooking duration, heat preservation temperature, and heat preservation duration, and send them to the cloud server;

[0010] The coagulating and curdling module is installed beside the constant temperature water bath and connected to the cloud server via 4G / 5G network. It is used to collect data such as ambient temperature and humidity, temperature of soy milk, flow rate of coagulant, pH value of soy milk, coagulating and curdling duration, and curdling and nurturing duration, and send them to the cloud server;

[0011] The pressing and cutting module is installed beside the forming machine and the cutting machine and connected to the cloud server via 4G / 5G network. It is used to collect data such as pressing pressure of water tofu, pressing duration of water tofu, and cutting state data of water tofu, and send them to the cloud server;

[0012] The packaging module is installed beside the packaging machine and connected to the cloud server via 4G / 5G network. It is used to collect the state of water tofu being packed into boxes and the total amount data of water tofu, receive the water tofu quality grade data from the cloud server and print it;

[0013] The cloud server is connected to the mobile phone mobile terminal via 4G / 5G network. It is used to receive the production process data sent by the soybean soaking module, grinding module, cooking module, coagulating and curdling module, pressing and cutting module, and packaging module, determine the quality grade of each batch of water tofu according to the water tofu quality grade evaluation formula, calculate the production efficiency and expected revenue of each batch of water tofu according to the water tofu production efficiency formula and the expected revenue formula, send the quality grade of each batch of water tofu to the packaging module, and send the total amount of water tofu, water tofu quality grade, production efficiency, and expected revenue to the mobile phone mobile terminal;

[0014] The mobile phone mobile terminal displays the total amount of water tofu, water tofu quality grade, production efficiency, and expected revenue to the production manager.

[0015] Preferably, the soybean soaking module includes a soybean humidity sensor, a water temperature sensor, a water quality sensor, a keyboard, an alarm, a display, an MCU controller, and a 4G / 5G module;

[0016] The soybean humidity sensor is connected to the MCU controller through an AD port and is used to collect the humidity of soybeans and send the signal to the MCU controller through the AD port with 0 - 10V or 4 - 20mA;

[0017] The water temperature sensor is connected to the MCU controller through an AD port and is used to collect the temperature of water and send the signal to the MCU controller through the AD port with 0 - 10V or 4 - 20mA;

[0018] The water quality sensor is connected to the MCU controller through the AD port, and is used to collect the cleanliness of water and send the signal to the MCU controller through the AD port in the form of 0-10V or 4-20mA;

[0019] The keyboard is connected to the MCU controller through the I / O port, and is used to trigger the start and stop of the soybean soaking action during the soybean soaking process and send the signal to the MCU controller through the I / O port;

[0020] The alarm is connected to the MCU controller through the I / O port, and is used to receive the TTL pulse alarm signal sent by the MCU controller and generate an alarm sound;

[0021] The display is connected to the MCU controller through the TTL serial port, and is used to receive the soybean soaking data sent by the MCU controller according to the TTL serial port protocol and complete the display;

[0022] The MCU controller is connected to the 4G / 5G module through the TTL serial port, and is used to collect the soybean humidity, water temperature and water cleanliness data, and record the soybean soaking duration data through the timer inside the MCU controller, and send them out by the 4G / 5G module, and at the same time receive the control information sent by the cloud server.

[0023] Preferably, the grinding module includes a motor speed sensor, a soybean milk concentration sensor, a keyboard, an alarm, a display, an MCU controller and a 4G / 5G module;

[0024] The motor speed sensor is connected to the MCU controller through the AD port, and is used to collect the rotation speed of the grinding machine motor and send the signal to the MCU controller through the AD port in the form of 0-10V or 4-20mA;

[0025] The soybean milk concentration sensor is connected to the MCU controller through the AD port, and is used to collect the soybean milk concentration during grinding and send the signal to the MCU controller through the AD port in the form of 0-10V or 4-20mA;

[0026] The keyboard is connected to the MCU controller through the I / O port, and is used to trigger the start and stop of the grinding action and send the signal to the MCU controller through the I / O port;

[0027] The alarm is connected to the MCU controller through the I / O port, and is used to receive the TTL pulse alarm signal sent by the MCU controller and generate an alarm sound;

[0028] The display is connected to the MCU controller through the TTL serial port, and is used to receive the grinding data sent by the MCU controller according to the TTL serial port protocol and complete the display;

[0029] The MCU controller is connected to the 4G / 5G module through a TTL serial port, used to collect motor speed and soymilk concentration data, and send them out by the 4G / 5G module, while receiving control information sent by the cloud server.

[0030] Preferably, the soymilk boiling module includes a soymilk boiling temperature sensor, a keyboard, an alarm, a display, an MCU controller, and a 4G / 5G module;

[0031] The soymilk boiling temperature sensor is connected to the MCU controller through an AD port, used to collect the soymilk boiling temperature and the heat preservation temperature, and send the signal to the MCU controller through the AD port in the form of 0 - 10V or 4 - 20mA;

[0032] The keyboard is connected to the MCU controller through an I / O port, used to trigger the start and stop of the soymilk boiling and heat preservation actions during the soymilk boiling process, and send the signal to the MCU controller through the I / O port;

[0033] The alarm is connected to the MCU controller through an I / O port, used to receive the TTL pulse alarm signal sent by the MCU controller and generate an alarm sound;

[0034] The display is connected to the MCU controller through a TTL serial port, used to receive the soymilk boiling and heat preservation data sent by the MCU controller through the TTL serial port protocol and complete the display;

[0035] The MCU controller is connected to the 4G / 5G module through a TTL serial port, used to collect the soymilk boiling temperature and the heat preservation temperature data, as well as record the soymilk boiling and heat preservation working duration data through the internal timer of the MCU, and send them out by the 4G / 5G module, while receiving control information sent by the cloud server.

[0036] Preferably, the brain curdling module includes an ambient temperature and humidity sensor, a soymilk temperature sensor, a coagulant flow sensor, a soymilk pH value sensor, a keyboard, an alarm, a display, an MCU controller, and a 4G / 5G module;

[0037] The ambient temperature and humidity sensor is connected to the MCU controller through an IIC port, used to collect the temperature and humidity of the environment during brain curdling, and send the signal to the MCU controller through the IIC port in the form of the IIC protocol;

[0038] The soymilk temperature sensor is connected to the MCU controller through an AD port, used to collect the temperature of the soymilk during brain curdling, and send the signal to the MCU controller through the AD port in the form of 0 - 10V or 4 - 20mA;

[0039] The coagulant flow sensor is connected to the MCU controller through the AD port, and is used to collect the flow rate of the coagulant during brain coagulation, and send the signal to the MCU controller through the AD port in the form of 0-10V or 4-20mA;

[0040] The soymilk pH value sensor is connected to the MCU controller through the AD port, and is used to collect the pH value of the soymilk during brain coagulation, and send the signal to the MCU controller through the AD port in the form of 0-10V or 4-20mA;

[0041] The keyboard is connected to the MCU controller through the I / O port, and is used to trigger the start and stop of the brain coagulation and squatting processes, and send the signal to the MCU controller through the I / O port;

[0042] The alarm is connected to the MCU controller through the I / O port, and is used to receive the TTL pulse alarm signal sent by the MCU controller and generate an alarm sound;

[0043] The display is connected to the MCU controller through the TTL serial port, and is used to receive the brain coagulation and squatting data sent by the MCU controller through the TTL serial port protocol and complete the display;

[0044] The MCU controller is connected to the 4G / 5G module through the TTL serial port, and is used to collect the temperature of the soymilk, the flow rate of the coagulant, and the pH value data of the soymilk during brain coagulation, and record the working duration of brain coagulation and squatting by the internal timer of the MCU, and send them out by the 4G / 5G module, and at the same time receive the control information sent by the cloud server.

[0045] Preferably, the pressing and cutting module includes a pressing pressure sensor, a proximity switch, a keyboard, an alarm, a display, an MCU controller, and a 4G / 5G module;

[0046] The pressing pressure sensor is connected to the MCU controller through the AD port, and is used to collect the pressure of pressing the tofu brain into tofu, and send the signal to the MCU controller through the AD port in the form of 0-10V or 4-20mA;

[0047] The proximity switch is connected to the MCU controller through the I / O port, and is used to collect the number of times of tofu cutting work, and send the signal to the MCU controller in the form of TTL level;

[0048] The keyboard is connected to the MCU controller through the I / O port, and is used to trigger the start and stop of the pressing and cutting process, and send the signal to the MCU controller through the I / O port;

[0049] The alarm is connected to the MCU controller through the I / O port, and is used to receive the TTL pulse alarm signal sent by the MCU controller and generate an alarm sound;

[0050] The display is connected to the MCU controller through a TTL serial port, and is used to receive the pressing and cutting data sent by the MCU controller through the TTL serial port protocol and complete the display;

[0051] The MCU controller is connected to the 4G / 5G module through a TTL serial port, and is used to collect the pressing pressure of the tofu and the cutting data of the tofu, record the working duration of the tofu pressing through the internal timer of the MCU, and send it out by the 4G / 5G module, and at the same time receive the control information sent by the cloud server.

[0052] Preferably, the packaging module includes a tofu block weight sensor, a display, a label printer, an MCU controller and a 4G / 5G module;

[0053] The tofu block weight sensor is connected to the MCU controller through an AD port, and is used to collect the weight of the boxed tofu block, and send the signal to the MCU controller through the AD port at 0-10V or 4-20mA;

[0054] The display is connected to the MCU controller through a TTL serial port, and is used to receive the packaging data sent by the MCU controller through the TTL serial port protocol and complete the display;

[0055] The label printer is connected to the MCU controller through a TTL serial port, and is used to receive the packaging data sent by the MCU controller through the TTL serial port protocol and complete the label printing;

[0056] The MCU controller is connected to the 4G / 5G module through a TTL serial port, and is used to collect the quality and quantity of the boxed tofu, and receive the tofu quality grade and batch information sent by the cloud server through the 4G / 5G module.

[0057] On the other hand, the present invention provides a usage method of a tofu production monitoring system, including the following steps:

[0058] S1. The soybean soaking module sends the humidity, water temperature and water cleanliness of the soybeans to the cloud server;

[0059] S2. The cloud server calculates the theoretical soaking duration according to the soaking duration empirical formula and sends it to the soybean soaking module. When the soaking duration reaches the theoretical duration, the alarm in the soybean soaking module is triggered to generate an alarm sound, and the soybean soaking ends and enters S3;

[0060] S3. The soybean grinding module sends the rotation speed of the soybean grinder and the soybean milk concentration to the cloud server;

[0061] S4. Set the soybean milk concentration threshold in the cloud server and send it to the soybean grinding module. When the soybean milk concentration reaches the concentration threshold, the alarm in the soybean grinding module is triggered to generate an alarm sound, and the soybean grinding ends and enters S5;

[0062] S5. The soymilk boiling module sends the soymilk boiling temperature to the cloud server;

[0063] S6. Set the soymilk boiling temperature threshold and heat preservation duration threshold in the cloud server, and send them to the soymilk boiling module. When the soymilk boiling temperature reaches the temperature threshold, it enters the heat preservation state. When the heat preservation duration reaches the heat preservation threshold, trigger the alarm in the soymilk boiling module to generate an alarm sound, and the soymilk boiling ends, then enter S7;

[0064] S8. The brain curdling and squatting module sends the ambient temperature and humidity, the temperature of the soymilk, the flow rate of the coagulant, and the pH value of the soymilk to the cloud server;

[0065] S11. Set the brain curdling duration threshold and squatting duration threshold in the cloud server, and send them to the brain curdling and squatting module. When the brain curdling duration reaches the brain curdling duration threshold, it enters the squatting state. When the squatting duration reaches the squatting duration threshold, trigger the alarm in the brain curdling and squatting module to generate an alarm sound, and the squatting ends, then enter S9;

[0066] S9. The pressing and cutting module sends the water tofu pressing pressure to the cloud server;

[0067] S10. Set the water tofu pressing duration threshold in the cloud server, and send it to the pressing and cutting module. When the water tofu pressing duration reaches the water tofu pressing duration threshold, trigger the alarm in the pressing and cutting module to generate an alarm sound, and then enter the cutting state. Subsequently, the pressing and cutting module sends the water tofu cutting data to the cloud server, and the cutting ends, then enter S11;

[0068] S11. The packaging module sends the weight of each water tofu block in each batch to the cloud server;

[0069] S12. The cloud server receives the weight of each batch of water tofu blocks, generates a product QR code, and substitutes the production and processing data of each batch of water tofu into the water tofu quality evaluation index formula to determine the quality grade of each batch of water tofu and send it to the packaging module;

[0070] S13. The packaging module receives the quality grade data of each batch of water tofu and completes the label printing for each batch of water tofu blocks.

[0071] S14. The cloud server calculates the production efficiency and expected revenue of each batch of water tofu according to the production efficiency formula and the expected revenue formula respectively;

[0072] S15. The mobile phone terminal displays the total amount of water tofu, the water tofu quality grade, the water tofu batch, the production efficiency, and the expected revenue to the production manager.

[0073] The water tofu production monitoring system and its usage method of the present invention have the following

[0074] Advantages compared with the prior art:

[0075] (1) The soybean soaking module, soybean grinding module, soymilk boiling module, curdling and squatting module, pressing and cutting module, and packaging module are designed to replace the traditional manual production and manual collection and inspection methods of water tofu, realizing the real-time collection and monitoring of data in the water tofu production process;

[0076] (2) The empirical formula for soybean soaking duration and the quality evaluation index formula for water tofu are constructed, and the evaluation grades of water tofu are delimited, realizing the integration of production process monitoring and control and production result evaluation;

[0077] (3) Through the display of the cloud server and the mobile phone terminal, the automated, intelligent, and lean management of the total amount of water tofu, quality grade, production efficiency, and expected revenue is realized. Description of the Drawings

[0078] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0079] Figure 1 It is a structural diagram of a water tofu production monitoring system provided by the present invention;

[0080] Figure 2 It is a structural diagram of the soybean soaking module provided by the present invention;

[0081] Figure 3 It is a structural diagram of the soybean grinding module provided by the present invention;

[0082] Figure 4 It is a structural diagram of the soymilk boiling module provided by the present invention;

[0083] Figure 5 It is a structural diagram of the curdling and squatting module provided by the present invention;

[0084] Figure 6 It is a structural diagram of the pressing and cutting module provided by the present invention;

[0085] Figure 7 It is a structural diagram of the packaging module provided by the present invention;

[0086] Figure 8 It is a working flowchart of the usage method of a water tofu production monitoring system provided by the present invention. Detailed Embodiments

[0087] Next, in combination with the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0088] Example 1: As Figures 1-7 shown, a water tofu production monitoring system provided by the present invention includes a soybean soaking module, a soy milk grinding module, a soy milk boiling module, a coagulating and curdling module, a pressing and cutting module, a packaging module, a cloud server, and a mobile phone terminal;

[0089] Among them, the soybean soaking module is installed beside the soybean soaking barrel and is connected to the cloud server through 4G / 5G network, and is used to collect data such as soybean humidity, water temperature, water cleanliness, and soybean soaking duration, and send them to the cloud server;

[0090] Among them, the soy milk grinding module is installed beside the soy milk grinder and is connected to the cloud server through 4G / 5G network, and is used to collect data such as the rotation speed of the soy milk grinder and the concentration of soy milk, and send them to the cloud server;

[0091] Among them, the soy milk boiling module is installed beside the soy milk boiling pot and is connected to the cloud server through 4G / 5G network, and is used to collect data such as soy milk boiling temperature, soy milk boiling duration, heat preservation temperature, and heat preservation duration, and send them to the cloud server;

[0092] Among them, the coagulating and curdling module is installed beside the constant temperature water bath and is connected to the cloud server through 4G / 5G network, and is used to collect data such as ambient temperature and humidity, soy milk temperature, coagulant flow rate, soy milk pH value, coagulating and curdling duration, and curdling and nurturing duration, and send them to the cloud server;

[0093] Among them, the pressing and cutting module is installed beside the forming machine and the cutting machine and is connected to the cloud server through 4G / 5G network, and is used to collect data such as water tofu pressing pressure, water tofu pressing duration, and water tofu cutting state, and send them to the cloud server;

[0094] Among them, the packaging module is installed beside the packaging machine and is connected to the cloud server through 4G / 5G network, and is used to collect the state of water tofu being packed into the box and the total amount of water tofu, receive the water tofu quality grade data from the cloud server and print it;

[0095] Among them, the cloud server is connected to the mobile phone terminal through the 4G / 5G network, and is used to receive the production process data sent by the soybean soaking module, the grinding module, the boiling module, the brain curdling and squatting module, the pressing and cutting module, and the packaging module. It determines the quality grade of the tofu according to the quality grade evaluation formula of the tofu, calculates the production efficiency and expected revenue of the tofu according to the production efficiency formula and the expected revenue formula of the tofu, and sends the quality grade of the batch of tofu to the packaging module and the total amount of tofu, the quality grade of the tofu, the production efficiency, and the expected revenue to the mobile phone terminal.

[0096] Among them, the mobile phone terminal displays the total amount of tofu, the quality grade of the tofu, the production efficiency, and the expected revenue to the production manager.

[0097] The present invention adopts a soybean soaking module, a grinding module, a boiling module, a brain curdling and squatting module, a pressing and cutting module, a packaging module, a cloud server, and a mobile phone terminal to realize a tofu production monitoring system. The system respectively collects the production process data of the soybean soaking process, the grinding process, the boiling process, the brain curdling and squatting process, the pressing and cutting process, and the packaging process of the tofu, completes the calculation of the soaking time of the soybeans, the quality evaluation index of the tofu, the production efficiency, and the expected revenue, and realizes the lean management of the total amount of tofu, the quality grade, the production efficiency, and the expected revenue; through design, simulation, and verification, modular products are formed, which can be quickly transplanted between different platforms and accelerate the product development process.

[0098] Specifically, the soybean soaking module includes a soybean humidity sensor, a water temperature sensor, a water quality sensor, a keyboard, an alarm, a display, an MCU controller, and a 4G / 5G module;

[0099] The soybean humidity sensor is connected to the MCU controller through the AD port, and is used to collect the humidity of the soybeans and send the signal to the MCU controller through the AD port in the form of 0-10V or 4-20mA.

[0100] The water temperature sensor is connected to the MCU controller through the AD port, and is used to collect the temperature of the water and send the signal to the MCU controller through the AD port in the form of 0-10V or 4-20mA.

[0101] The water quality sensor is connected to the MCU controller through the AD port, and is used to collect the cleanliness of the water and send the signal to the MCU controller through the AD port in the form of 0-10V or 4-20mA.

[0102] The keyboard is connected to the I / O port of the MCU controller, and is used to start and stop the soaking action of the soybeans during the soybean soaking process and send the signal to the MCU controller through the I / O port.

[0103] The alarm is connected to the I / O port of the MCU controller, and is used to receive the TTL pulse alarm signal sent by the MCU controller and generate an alarm sound.

[0104] The display is connected to the MCU controller through a TTL serial port, and is used to receive the bubble bean data sent by the MCU controller through the TTL serial port protocol and complete the display;

[0105] The MCU controller is connected to the 4G / 5G module through a TTL serial port, and is used to collect the humidity, water temperature and water cleanliness data of soybeans, record the soaking time data of soybeans through the internal timer of the MCU and send it out by the 4G / 5G module, and at the same time receive the control information sent by the cloud server.

[0106] Specifically, the grinding module includes a motor speed sensor, a soy milk concentration sensor, a keyboard, an alarm, a display, an MCU controller and a 4G / 5G module;

[0107] The motor speed sensor is connected to the AD port of the MCU controller, and is used to collect the motor speed of the grinder and send the signal to the MCU controller through the AD port at 0-10V or 4-20mA;

[0108] The soy milk concentration sensor is connected to the AD port of the MCU controller, and is used to collect the soy milk concentration during grinding and send the signal to the MCU controller through the AD port at 0-10V or 4-20mA;

[0109] The keyboard is connected to the I / O port of the MCU controller, and is used to trigger the start and stop of the grinding action and send the signal to the MCU controller through the I / O port;

[0110] The alarm is connected to the I / O port of the MCU controller, and is used to receive the TTL pulse alarm signal sent by the MCU controller and generate an alarm sound;

[0111] The display is connected to the MCU controller through a TTL serial port, and is used to receive the grinding data sent by the MCU controller through the TTL serial port protocol and complete the display;

[0112] The MCU controller is connected to the 4G / 5G module through a TTL serial port, and is used to collect the motor speed and soy milk concentration data and send it out by the 4G / 5G module, and receive the control information sent by the cloud server.

[0113] Specifically, the soy milk boiling module includes a soy milk boiling temperature sensor, a keyboard, an alarm, a display, an MCU controller and a 4G / 5G module;

[0114] The soy milk boiling temperature sensor is connected to the AD port of the MCU controller, and is used to collect the soy milk boiling temperature and the heat preservation temperature and send the signal to the MCU controller through the AD port at 0-10V or 4-20mA;

[0115] The keyboard is connected to the I / O port of the MCU controller, and is used to start and stop the boiling and heat preservation actions during the soymilk boiling process and send signals to the MCU controller through the I / O port;

[0116] The alarm is connected to the I / O port of the MCU controller, and is used to receive the TTL pulse alarm signal sent by the MCU controller and generate an alarm sound;

[0117] The display is connected to the TTL serial port of the MCU controller, and is used to receive the soymilk boiling and heat preservation data sent by the MCU controller through the TTL serial port protocol and complete the display;

[0118] The MCU controller is connected to the TTL serial port of the 4G / 5G module, and is used to collect the soymilk boiling temperature and heat preservation temperature data, record the soymilk boiling and heat preservation working duration data through the internal timer of the MCU and send it out by the 4G / 5G module, and receive the control information sent by the cloud server.

[0119] Specifically, the soymilk coagulation module includes an environmental temperature and humidity sensor, a soymilk temperature sensor, a coagulant flow sensor, a soymilk pH value sensor, a keyboard, an alarm, a display, an MCU controller and a 4G / 5G module;

[0120] The environmental temperature and humidity sensor is connected to the IIC port of the MCU controller, and is used to collect the temperature and humidity of the environment during soymilk coagulation and send the signal to the MCU controller through the IIC port in IIC protocol;

[0121] The soymilk temperature sensor is connected to the AD port of the MCU controller, and is used to collect the temperature of the soymilk during soymilk coagulation and send the signal to the MCU controller through the AD port in 0-10V or 4-20mA;

[0122] The coagulant flow sensor is connected to the AD port of the MCU controller, and is used to collect the flow rate of the coagulant during soymilk coagulation and send the signal to the MCU controller through the AD port in 0-10V or 4-20mA;

[0123] The soymilk pH value sensor is connected to the AD port of the MCU controller, and is used to collect the pH value of the soymilk during soymilk coagulation and send the signal to the MCU controller through the AD port in 0-10V or 4-20mA;

[0124] The keyboard is connected to the I / O port of the MCU controller, and is used to start and stop the soymilk coagulation and squatting processes and send signals to the MCU controller through the I / O port;

[0125] The alarm is connected to the I / O port of the MCU controller, and is used to receive the TTL pulse alarm signal sent by the MCU controller and generate an alarm sound;

[0126] The display is TTL serial port connected to the MCU controller, and is used to receive the data sent by the MCU controller through the TTL serial port protocol and complete the display;

[0127] The MCU controller is TTL serial port connected to the 4G / 5G module, and is used to collect the temperature of the soymilk during brain curdling, the flow rate of the coagulant, and the pH value of the soymilk. The working duration of brain curdling and the working duration of squatting curdling are recorded by the internal timer of the MCU and sent by the 4G / 5G module, and the control information sent by the cloud server is received.

[0128] Specifically, the pressing and cutting module includes a pressing pressure sensor, a proximity switch, a keyboard, an alarm, a display, an MCU controller, and a 4G / 5G module;

[0129] The pressing pressure sensor is connected to the AD port of the MCU controller, and is used to collect the pressure for pressing the soft tofu into hard tofu and send the signal to the MCU controller through the AD port with 0-10V or 4-20mA;

[0130] The proximity switch is connected to the I / O port of the MCU controller, and is used to collect the number of times of the soft tofu cutting operation and send the signal to the MCU controller with TTL level;

[0131] The keyboard is connected to the I / O port of the MCU controller, and is used to trigger the start and stop of the pressing and cutting process and send the signal to the MCU controller through the I / O port;

[0132] The alarm is connected to the I / O port of the MCU controller, and is used to receive the TTL pulse alarm signal sent by the MCU controller and generate an alarm sound;

[0133] The display is TTL serial port connected to the MCU controller, and is used to receive the pressing and cutting data sent by the MCU controller through the TTL serial port protocol and complete the display;

[0134] The MCU controller is TTL serial port connected to the 4G / 5G module, and is used to collect the pressing pressure of the hard tofu and the cutting data of the hard tofu. The working duration of pressing the hard tofu is recorded by the internal timer of the MCU and sent by the 4G / 5G module, and the control information sent by the cloud server is received.

[0135] Specifically, the packaging module includes a soft tofu block weight sensor, a display, a label printer, an MCU controller, and a 4G / 5G module;

[0136] The soft tofu block weight sensor is connected to the AD port of the MCU controller, and is used to collect the weight of the boxed soft tofu block and send the signal to the MCU controller through the AD port with 0-10V or 4-20mA;

[0137] The display is connected to the TTL serial port of the MCU controller and is used to receive the packaged data sent by the MCU controller through the TTL serial port protocol and complete the display;

[0138] The label printer is connected to the TTL serial port of the MCU controller and is used to receive the packaged data sent by the MCU controller through the TTL serial port protocol and complete the label printing;

[0139] The MCU controller is connected to the TTL serial port of the 4G / 5G module and is used to collect the quality and quantity of boxed tofu and receive the tofu quality grade and batch information sent by the cloud server through the 4G / 5G module.

[0140] Specifically, in the present invention, the 4G / 5G module is implemented by using the Quectel Air780E full Netcom, and the MCU controller uses the STM32F103 of ST company, and it is compiled and passed using the C language in the Keil uVision 5 software.

[0141] A tofu production monitoring system in this embodiment uses a soybean soaking module, a soy milk grinding module, a soy milk boiling module, a brain curdling and squatting module, a pressing and cutting module, a packaging module, a cloud server, and a mobile phone terminal to implement a tofu production monitoring system. This system respectively collects the process data of the soybean soaking process, soy milk grinding process, soy milk boiling process, brain curdling and squatting process, pressing and cutting process, and packaging process of tofu production, completes the calculation of the soybean soaking duration, tofu quality evaluation index, production efficiency, and expected revenue, and realizes the lean management of the total amount, quality grade, production efficiency, and expected revenue of tofu; through design, simulation, and verification, a modular product is formed, which can be quickly transplanted between different platforms and accelerate the product development process.

[0142] Embodiment 2: As Figure 8 A usage method of a tofu production monitoring system provided by the present invention uses a tofu production monitoring system as described in Embodiment 1, and includes the following steps:

[0143] S1. The soybean soaking module sends the humidity, water temperature, and water cleanliness of soybeans to the cloud server;

[0144] S2. The cloud server calculates the theoretical soaking duration of soybeans according to the soaking duration empirical formula and sends it to the soybean soaking module. When the soaking duration reaches the theoretical duration, an alarm sound is generated by the alarm in the soybean soaking module, and the soybean soaking ends and enters S3;

[0145] S3. The soy milk grinding module sends the rotation speed of the soy milk grinder and the soy milk concentration to the cloud server;

[0146] S4. Set the soy milk concentration threshold in the cloud server and send it to the soy milk grinding module. When the soy milk concentration reaches the concentration threshold, an alarm sound is generated by the alarm in the soy milk grinding module, and the soy milk grinding ends and enters S5;

[0147] S5. The soymilk boiling module sends the soymilk boiling temperature to the cloud server;

[0148] S6. Set the soymilk boiling temperature threshold and the heat preservation duration threshold in the cloud server, and send them to the soymilk boiling module. When the soymilk boiling temperature reaches the temperature threshold, it enters the heat preservation state. When the heat preservation duration reaches the heat preservation threshold, trigger the alarm in the soymilk boiling module to generate an alarm sound, and the soymilk boiling ends, then enter S7;

[0149] S8. The brain curdling and squatting module sends the environmental temperature and humidity, the temperature of the soymilk, the flow rate of the coagulant, and the pH value of the soymilk to the cloud server;

[0150] S9. Set the brain curdling duration threshold and the squatting duration threshold in the cloud server, and send them to the brain curdling and squatting module. When the brain curdling duration reaches the brain curdling duration threshold, it enters the squatting state. When the squatting duration reaches the squatting duration threshold, trigger the alarm in the brain curdling and squatting module to generate an alarm sound, and the squatting ends, then enter S10;

[0151] S10. The pressing and cutting module sends the water tofu pressing pressure to the cloud server;

[0152] S11. Set the water tofu pressing duration threshold in the cloud server, and send it to the pressing and cutting module. When the water tofu pressing duration reaches the water tofu pressing duration threshold, trigger the alarm in the pressing and cutting module to generate an alarm sound, and then enter the cutting state. Subsequently, the pressing and cutting module sends the water tofu cutting data to the cloud server, and the cutting ends, then enter S12;

[0153] S12. The packaging module sends the weight of each water tofu block in each batch to the cloud server;

[0154] S13. The cloud server receives the weight of each batch of water tofu blocks, generates a product QR code, and substitutes the production and processing data of each batch of water tofu into the water tofu quality evaluation index formula to determine the quality grade of each batch of water tofu and send it to the packaging module;

[0155] S14. The packaging module receives the quality grade data of each batch of water tofu and completes the label printing for each batch of water tofu blocks.

[0156] S15. The cloud server calculates the production efficiency and expected revenue of each batch of water tofu according to the production efficiency formula and the expected revenue formula respectively;

[0157] S16. The mobile phone terminal displays the total amount of water tofu, the water tofu quality grade, the water tofu batch, the production efficiency, and the expected revenue to the production manager.

[0158] Specifically, the empirical formula for the soaking bean duration is t = 12.41e -0.011T , where t represents the soaking bean duration, with the unit of h, and T represents the water temperature, with the unit of °C;

[0159] The formula for the quality evaluation index of the water tofu is

[0160] and it satisfies where RH represents the actual humidity of the soybeans; RH 0 represents the ideal humidity of the soybeans; RH max represents the maximum allowable humidity of the soybeans; RH min represents the minimum allowable humidity of the soybeans, and the unit is %; δ 1 represents the weight of the soybean humidity in the quality evaluation index of the water tofu, which is a dimensionless number; GH represents the actual cleanliness of the water; GH 0 represents the ideal cleanliness of the water; GH max represents the maximum allowable cleanliness of the water; GH min represents the minimum allowable cleanliness of the water, and the unit is ppm; δ 2 represents the weight of the water cleanliness in the quality evaluation index of the water tofu, which is a dimensionless number; T h represents the actual temperature of the environment; T h0 represents the ideal temperature of the environment; T hmax represents the maximum allowable temperature of the environment; T hmin represents the minimum allowable temperature of the environment, and the unit is °C; δ 3 represents the weight of the environmental temperature in the quality evaluation index of the water tofu, which is a dimensionless number; RH h represents the actual humidity of the environment; RH h0 represents the ideal humidity of the environment; RH hmax represents the maximum allowable humidity of the environment; RH hmin represents the minimum allowable humidity of the environment, and the unit is %; δ 4 represents the weight of the environmental humidity in the quality evaluation index of the water tofu, which is a dimensionless number; Q represents the actual flow rate of the coagulant; Q 0 represents the ideal flow rate of the coagulant; Q max represents the maximum allowable flow rate of the coagulant; Q min represents the minimum allowable flow rate of the coagulant, and the unit is L / min; δ 5 represents the weight of the coagulant flow rate in the quality evaluation index of the water tofu, which is a dimensionless number; pH represents the actual pH value of the soy milk during coagulation; pH 0 represents the ideal pH value of the soy milk during coagulation; pH max represents the maximum allowable pH value of the soy milk during coagulation; pH min represents the minimum allowable pH value of the soy milk during coagulation, and the unit is pH; δ 6 represents the weight of the coagulant flow rate in the quality evaluation index of the water tofu, which is a dimensionless number; P represents the actual pressing pressure of the water tofu; P 0 represents the ideal pressing pressure of the water tofu; P maxRepresents the maximum allowable pressure for pressing tofu; P min Represents the minimum allowable pressure for pressing tofu, with the unit of kg / mm2; δ 7 Represents the weight of the pressing pressure of tofu in the quality evaluation index of tofu, which is a dimensionless number; t p Represents the actual pressing duration of tofu; t p0 Represents the ideal pressing duration of tofu; t pmax Represents the maximum allowable duration for pressing tofu; t pmin Represents the minimum allowable duration for pressing tofu, with the unit of min; δ 8 Represents the weight of the pressing duration of tofu in the quality evaluation index of tofu, which is a dimensionless number.

[0161] The quality grade of the tofu is defined as follows: when the quality evaluation index of the tofu is in the interval [0, 0.1), it is a special grade product; when the evaluation index is in the interval [0.1, 0.3), it is a first grade product; and in other intervals, it is a second grade product.

[0162] Specifically, the production efficiency formula is where M 总 Represents the total mass of the produced tofu, with the unit of Kg, t 总 Represents the total time for producing tofu, with the unit of days;

[0163] The expected revenue formula is E = M t ·p t +M 1 ·p 1 +M 2 ·p 2 -C 总 , where M t Represents the total mass of the produced special grade tofu, with the unit of Kg, p t Represents the unit price of the produced special grade tofu, with the unit of yuan / Kg, M 1 Represents the total mass of the produced first grade tofu, with the unit of Kg, p 1 Represents the unit price of the produced first grade tofu, with the unit of yuan / Kg, M 2 Represents the total mass of the produced second grade tofu, with the unit of Kg, p 2 Represents the unit price of the produced second grade tofu, with the unit of yuan / Kg, C 总 Represents the total cost of producing this batch of tofu.

[0164] Such as Figure 8As shown, the soybean soaking module collects the humidity, water temperature, and water cleanliness of soybeans in real time. The soy milk grinding module collects the rotation speed of the grinder and the concentration of soy milk in real time. The soy milk boiling module collects the boiling temperature of soy milk in real time. The curdling and squatting module collects the ambient temperature and humidity, the temperature of soy milk, the flow rate of the coagulant, and the pH value of soy milk in real time. The pressing and cutting module collects the pressing pressure and cutting data of the water tofu in real time. The cloud server sets the thresholds for each production process stage, calculates the soybean soaking duration, the water tofu quality evaluation index, the production efficiency, and the expected revenue, controls the packaging module to complete the printing of the product labels of the water tofu blocks, and displays the total amount of water tofu, the water tofu quality grade, the water tofu batch, the production efficiency, and the expected revenue to the production manager through the mobile phone terminal.

[0165] A method for using a water tofu production monitoring system in this embodiment adopts a modular design method and uses a soybean soaking module, a soy milk grinding module, a soy milk boiling module, a curdling and squatting module, a pressing and cutting module, a packaging module, a cloud server, and a mobile phone terminal to implement a water tofu production monitoring system. This system respectively collects the process data of the soybean soaking process, the soy milk grinding process, the soy milk boiling process, the curdling and squatting process, the pressing and cutting process, and the packaging process of water tofu production, completes the calculation of the soybean soaking duration, the water tofu quality evaluation index, the production efficiency, and the expected revenue, and realizes the lean management of the total amount of water tofu, the quality grade, the production efficiency, and the expected revenue.

[0166] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A tofu production monitoring system, mainly including a bean soaking module, a pulp grinding module, a pulp boiling module, a brain-pointing and squatting module, a pressing and cutting module, a packaging module, a cloud server and a mobile terminal; The bean soaking module is installed next to the soybean soaking barrel and connected to the cloud server through a 4G / 5G network to collect soybean humidity, water temperature, water cleanliness and soybean soaking time data, and send them to the cloud server; The refining module is installed next to the refiner and connected to the cloud server via a 4G / 5G network to collect data on the speed of the refiner and the concentration of soybean milk and send the data to the cloud server; The pulp cooking module is installed next to the pulp cooking pot and connected to the cloud server through a 4G / 5G network, and is used to collect pulp cooking temperature, pulp cooking time, insulation temperature and insulation time data, and send them to the cloud server; The brain-dotting and brain-squatting module is installed next to the constant temperature water bath and connected to the cloud server through a 4G / 5G network to collect environmental temperature and humidity, soy milk temperature, coagulant flow, soy milk pH value, brain-dotting coagulation time and brain-squatting time, and send them to the cloud server; The pressing and cutting module is installed next to the forming machine and the cutting machine, and is connected to the cloud server through a 4G / 5G network, and is used to collect the water tofu pressing pressure, water tofu pressing time and water tofu cutting status data, and send them to the cloud server; The packaging module is installed next to the packaging machine and connected to the cloud server through a 4G / 5G network to collect the status of tofu packaging into boxes, the total amount of tofu, and receive and print the tofu quality grade data from the cloud server; The cloud server is connected to the mobile phone terminal via a 4G / 5G network, and is used to receive production process data sent by the bean soaking module, the pulping module, the pulp boiling module, the brain-dipping and squatting module, the pressing and cutting module, and the packaging module, and determines the quality grade of each batch of water tofu according to the water tofu quality grade evaluation formula, calculates the production efficiency and expected profit of each batch of water tofu according to the water tofu production efficiency formula and the expected profit formula, and sends the quality grade of each batch of water tofu to the packaging module, and sends the total amount of water tofu, the water tofu quality grade, the production efficiency and the expected profit to the mobile phone terminal; The mobile phone terminal displays the total amount of water-curd, the quality grade of water-curd, the production efficiency and the expected profit to the production manager.

2. The tofu production monitoring system according to claim 1, characterized in that: The bean soaking module includes a soybean humidity sensor, a water temperature sensor, a water quality sensor, a keyboard, an alarm, a display, an MCU controller and a 4G / 5G module; The soybean moisture sensor is connected to the MCU controller through the AD port, and is used to collect the moisture of the soybeans, and send the signal to the MCU controller through the AD port at 0-10V or 4-20mA; The water temperature sensor is connected to the MCU controller through the AD port, and is used to collect the water temperature and send the signal to the MCU controller through the AD port at 0-10V or 4-20mA; The water quality sensor is connected to the MCU controller through the AD port, and is used to collect the cleanliness of the water, and send the signal to the MCU controller through the AD port at 0-10V or 4-20mA; The keyboard is connected to the MCU controller via an I / O port, and is used to trigger the start and stop of the soybean soaking action during the soybean soaking process, and sends the signal to the MCU controller via the I / O port; The alarm is connected to the MCU controller via an I / O port, and is used to receive a TTL pulse alarm signal sent by the MCU controller and generate an alarm sound; The display is connected to the MCU controller via a TTL serial port, and is used to receive the bean soaking data sent by the TTL serial port protocol of the MCU controller and complete the display; The MCU controller is connected to the 4G / 5G module through a TTL serial port, and is used to collect soybean humidity, water temperature and water cleanliness data, and record soybean soaking time data through a timer inside the MCU controller, which is sent by the 4G / 5G module and receives control information sent by the cloud server at the same time.

3. The tofu production monitoring system according to claim 1, characterized in that: The grinding module includes a motor speed sensor, a soymilk concentration sensor, a keyboard, an alarm, a display, an MCU controller and a 4G / 5G module; The motor speed sensor is connected to the MCU controller via the AD port, and is used to collect the motor speed of the refiner, and send the signal to the MCU controller via the AD port at 0-10V or 4-20mA; The soymilk concentration sensor is connected to the MCU controller via the AD port, and is used to collect the soymilk concentration during grinding, and send the signal to the MCU controller via the AD port at 0-10V or 4-20mA; The keyboard is connected to the MCU controller via an I / O port, and is used to trigger the start and stop of the refining action, and sends the signal to the MCU controller via the I / O port; The alarm is connected to the MCU controller via an I / O port, and is used to receive a TTL pulse alarm signal sent by the MCU controller and generate an alarm sound; The display is connected to the MCU controller via a TTL serial port, and is used to receive the pulping data sent by the TTL serial port protocol of the MCU controller and complete the display; The MCU controller is connected to the 4G / 5G module via a TTL serial port, and is used to collect motor speed and soymilk concentration data, which are sent by the 4G / 5G module and receive control information sent by the cloud server.

4. The tofu production monitoring system according to claim 1, characterized in that: The pulp cooking module includes a pulp cooking temperature sensor, a keyboard, an alarm, a display, an MCU controller and a 4G / 5G module; The pulp cooking temperature sensor is connected to the MCU controller via the AD port, and is used to collect pulp cooking temperature and insulation temperature, and send the signal to the MCU controller via the AD port at 0-10V or 4-20mA; The keyboard is connected to the MCU controller via an I / O port, and is used to trigger the start and stop of the pulp cooking and heat preservation actions during the pulp cooking process, and sends the signal to the MCU controller via the I / O port; The alarm is connected to the MCU controller via an I / O port, and is used to receive a TTL pulse alarm signal sent by the MCU controller and generate an alarm sound; The display is connected to the MCU controller via a TTL serial port, and is used to receive the pulp boiling and heat preservation data sent by the TTL serial port protocol of the MCU controller, and complete the display; The MCU controller is connected to the 4G / 5G module through a TTL serial port, and is used to collect boiling temperature and insulation temperature data and record boiling and insulation working time data through the MCU internal timer, which is sent by the 4G / 5G module and receives control information sent by the cloud server at the same time.

5. The tofu production monitoring system according to claim 1, characterized in that: The dot-brain squatting module includes an environmental temperature and humidity sensor, a soybean milk temperature sensor, a coagulant flow sensor, a soybean milk pH sensor, a keyboard, an alarm, a display, an MCU controller and a 4G / 5G module; The environmental temperature and humidity sensor is connected to the MCU controller through the IIC port, and is used to collect the temperature and humidity of the environment when the brain is turned on, and send the signal to the MCU controller through the IIC port in the IIC protocol; The soy milk temperature sensor is connected to the MCU controller through the AD port, and is used to collect the temperature of the soy milk when drinking, and send the signal to the MCU controller through the AD port at 0-10V or 4-20mA; The coagulant flow sensor is connected to the MCU controller via the AD port, and is used to collect the flow of the coagulant during brain injection, and send the signal to the MCU controller via the AD port at 0-10V or 4-20mA; The soy milk pH value sensor is connected to the MCU controller through the AD port, and is used to collect the pH value of the soy milk when drinking, and send the signal to the MCU controller through the AD port at 0-10V or 4-20mA; The keyboard is connected to the MCU controller via an I / O port, and is used to trigger the start and stop of the brain-clicking and brain-squatting processes, and sends the signal to the MCU controller via the I / O port; The alarm is connected to the MCU controller via an I / O port, and is used to receive a TTL pulse alarm signal sent by the MCU controller and generate an alarm sound; The display is connected to the MCU controller via a TTL serial port, and is used to receive the brain-squatting data sent by the TTL serial port protocol of the MCU controller and complete the display; The MCU controller is connected to the 4G / 5G module through a TTL serial port, and is used to collect the temperature of the soy milk, the flow rate of the coagulant and the pH value data of the soy milk during brain-injection, and to record the working time of brain-injection and squatting through the internal timer of the MCU, which is sent by the 4G / 5G module and receives the control information sent by the cloud server at the same time.

6. The tofu production monitoring system according to claim 1, characterized in that: The pressing and cutting module includes a pressing pressure sensor, a proximity switch, a keyboard, an alarm, a display, an MCU controller and a 4G / 5G module; The pressing pressure sensor is connected to the MCU controller via an AD port, and is used to collect the pressure of the water tofu pudding into water tofu, and send the signal to the MCU controller via the AD port at 0-10V or 4-20mA; The proximity switch is connected to the MCU controller through an I / O port, and is used to collect the number of times the water tofu cutting operation is performed, and send the signal to the MCU controller at a TTL level; The keyboard is connected to the MCU controller via an I / O port, and is used to suppress the start and stop trigger of the cutting process, and send the signal to the MCU controller via the I / O port; The alarm is connected to the MCU controller via an I / O port, and is used to receive a TTL pulse alarm signal sent by the MCU controller and generate an alarm sound; The display is connected to the MCU controller via a TTL serial port, and is used to receive the pressing and cutting data sent by the TTL serial port protocol of the MCU controller and complete the display; The MCU controller is connected to the 4G / 5G module through a TTL serial port, and is used to collect the water tofu pressing pressure and water tofu cutting data and record the water tofu pressing working time through the MCU internal timer, which is sent by the 4G / 5G module and receives the control information sent by the cloud server at the same time.

7. The tofu production monitoring system according to claim 1, characterized in that: The packaging module includes a water tofu block weight sensor, a display, a label printer, an MCU controller and a 4G / 5G module; The water tofu block weight sensor is connected to the MCU controller via the AD port, and is used to collect the weight of the boxed water tofu blocks, and send the signal to the MCU controller via the AD port at 0-10V or 4-20mA; The display is connected to the MCU controller via a TTL serial port, and is used to receive the packaging data sent by the TTL serial port protocol of the MCU controller and complete the display; The label printer is connected to the MCU controller via a TTL serial port, and is used to receive packaging data sent by the TTL serial port protocol of the MCU controller and complete label printing; The MCU controller is connected to the 4G / 5G module via a TTL serial port, and is used to collect the quality and quantity of boxed tofu, and receive the tofu quality grade and batch information sent by the 4G / 5G module from the cloud server.

8. A method for using the tofu production monitoring system according to any one of claims 1 to 7, characterized in that: The steps include: S1. The soybean soaking module sends soybean humidity, water temperature and water cleanliness to the cloud server; S2. The cloud server calculates the theoretical soaking time according to the empirical formula of soaking time and sends it to the soaking module. When the soaking time reaches the theoretical time, the alarm in the soaking module is triggered to generate an alarm sound, and the soaking ends, and enters S3; S3. The refining module sends the refining machine speed and soymilk concentration to the cloud server; S4. Set the soy milk concentration threshold in the cloud server and send it to the grinding module. When the soy milk concentration reaches the concentration threshold, the alarm in the grinding module is triggered to generate an alarm sound, and the grinding is completed and enters S5; S5. The pulp cooking module sends the pulp cooking temperature to the cloud server; S6. Set the boiling temperature threshold and the insulation time threshold in the cloud server and send them to the boiling module. When the boiling temperature reaches the temperature threshold, it switches to insulation. When the insulation time reaches the insulation threshold, the alarm in the boiling module is triggered to generate an alarm sound, and the boiling ends, and enters S7; S7. The brain module sends the ambient temperature and humidity, the temperature of the soy milk, the flow rate of the coagulant and the pH value of the soy milk to the cloud server; S8. Set the brain-pointing duration threshold and the squatting duration threshold in the cloud server and send them to the brain-pointing squatting module. When the brain-pointing duration reaches the brain-pointing duration threshold, it switches to the squatting module. When the squatting duration reaches the squatting duration threshold, the alarm in the brain-pointing squatting module is triggered to generate an alarm sound, and the squatting ends, and enters S9; S9. The pressing and cutting module sends the water tofu pressing pressure to the cloud server; S10. Set the water tofu pressing time threshold in the cloud server and send it to the pressing and cutting module. When the water tofu pressing time reaches the water tofu pressing time threshold, the alarm in the pressing and cutting module is triggered to generate an alarm sound and enter the cutting. Then the pressing and cutting module sends the water tofu cutting data to the cloud server, and the cutting is completed, and enters S11; S11. The packaging module sends the weight of each batch of tofu to the cloud server; S12. The cloud server receives the weight of each batch of water tofu blocks, generates a product QR code, and substitutes the production and processing data of each batch of water tofu into the water tofu quality evaluation index formula to determine the quality grade of each batch of water tofu and send it to the packaging module; S13. The packaging module receives the quality grade data of each batch of tofu and completes the label printing for each batch of tofu blocks. S14. The cloud server calculates the production efficiency and expected revenue of each batch of tofu according to the production efficiency formula and the expected revenue formula; S15. The mobile terminal displays the total amount of water tofu, the quality grade of water tofu, the batches of water tofu, the production efficiency and the expected profit to the production manager.

9. The method for using the tofu production monitoring system according to claim 8, characterized in that: The empirical formula for the soaking time is as follows: t=12.41e -0.011T ; Among them, t represents the soaking time of beans, the unit is h; T represents the water temperature, the unit is ℃; The water tofu quality evaluation index formula is as follows: And meet Among them, RH represents the actual humidity of soybeans; RH0 represents the ideal humidity of soybeans; RH max Indicates the maximum allowable humidity of soybeans; RH min represents the minimum allowable humidity of soybeans, and the unit is %; δ1 represents the weight of soybean humidity in the water tofu quality evaluation index, a dimensionless number; GH represents the actual cleanliness of water; GH0 represents the ideal cleanliness of water; GH max Indicates the maximum allowable cleanliness of water; GH min represents the minimum allowable water cleanliness, in units of ppm; δ2 represents the weight of water cleanliness in the water tofu quality evaluation index, a dimensionless number; T h Indicates the actual ambient temperature; T h0 Indicates the ideal ambient temperature; T hmax Indicates the maximum allowable ambient temperature; T hmin represents the minimum allowable temperature of the environment, in units of °C; δ3 represents the weight of the ambient temperature in the water tofu quality evaluation index, a dimensionless number; RH h Indicates the actual humidity of the environment; RH h0 Indicates the ideal humidity of the environment; RH hmax Indicates the maximum allowable humidity of the environment; RH hmin represents the minimum allowable humidity of the environment, and the unit is %; δ4 represents the weight of the environmental humidity in the water tofu quality evaluation index, a dimensionless number; Q represents the actual flow rate of the coagulant; Q0 represents the ideal flow rate of the coagulant; Q max Indicates the maximum allowable flow rate of coagulant; Q min represents the minimum allowable flow rate of the coagulant, and the unit is L / min; δ5 represents the weight of the coagulant flow rate in the water tofu quality evaluation index, a dimensionless number; pH represents the actual pH value of the soy milk when making soy milk; pH0 represents the ideal pH value of the soy milk when making soy milk; pH max Indicates the maximum allowable pH value of soy milk when used for drinking. min represents the minimum allowable pH value of soy milk when making soy milk, and the unit is pH; δ6 represents the weight of the coagulant flow rate in the water tofu quality evaluation index, a dimensionless number; P represents the actual pressing pressure of water tofu; P0 represents the ideal pressing pressure of water tofu; P max Indicates the maximum allowable pressure for pressing water tofu; P min Indicates the minimum allowable pressure for pressing water tofu, the unit is kg / mm 2 ; δ7 represents the weight of the pressing pressure of water tofu in the water tofu quality evaluation index, a dimensionless number; t p Indicates the actual pressing time of water tofu; t p0 Indicates the ideal pressing time of water tofu; t pmax Indicates the maximum allowed time for pressing water tofu; t pmin It represents the minimum allowable time for pressing water tofu, and the unit is min; δ8 represents the weight of the pressing time of water tofu in the water tofu quality evaluation index, which is a dimensionless number; The quality grade of tofu is that tofu with a quality evaluation index in the interval [0, 0.1) is classified as a special grade, tofu with a quality evaluation index in the interval [0.1, 0.3) is classified as a first grade, and the rest of the intervals are classified as a second grade.

10. The method for using the tofu production monitoring system according to claim 8, characterized in that: The production efficiency formula is as follows: Among them, M 总 Indicates the total mass of produced tofu, in kg; t 总 It indicates the total time of producing water tofu, in days; The expected return formula is as follows: E=M t ·p t +M1·p1+M2·p2-C 总 Among them, M t Indicates the total mass of premium tofu produced, in kg; p t represents the unit price of producing premium grade water tofu, in RMB / Kg; M1 represents the total mass of producing first grade water tofu, in Kg; p1 represents the unit price of producing first grade water tofu, in RMB / Kg; M2 represents the total mass of producing second grade water tofu, in Kg; p2 represents the unit price of producing second grade water tofu, in RMB / Kg; C 总 Represents the total cost of producing each batch of tofu.

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