Refrigeration equipment control method and device, electronic equipment and storage medium

Abstract

The embodiment of the invention provides a refrigeration equipment control method and device, electronic equipment and a storage medium. The refrigeration equipment control method comprises the following steps: acquiring a temperature value of a temperature measurement module by calling the temperature measurement module; when it is judged that the temperature value of the temperature measurement module is abnormal and the voltage value of the voltage division circuit acquired by the resistance temperature detector is stored, determining a temperature measurement module contrast value corresponding to the voltage value of the voltage division circuit; determining the comparison value of the temperature measurement module as an effective temperature value; and the refrigeration equipment is controlled based on the effective temperature value, so that the situation that the refrigeration equipment cannot be controlled at the correct environment temperature when the temperature value of the temperature measurement module transmitted based on the serial data communication protocol is abnormal is avoided, the environment temperature acquisition accuracy of the refrigeration equipment is improved, and the control efficiency of the refrigeration equipment is improved.

Description

Technical Field

[0001] The present invention relates to the field of refrigeration equipment control technology, and in particular to a refrigeration equipment control method, a refrigeration equipment, a refrigeration equipment control device, an electronic device and a computer-readable storage medium. Background Art

[0002] Refrigeration equipment is a device that lowers the temperature by absorbing heat. It uses the physical change of the refrigerant (the conversion of gaseous and liquid states) to transfer heat from the cooled object to the surrounding environment, thereby achieving the purpose of cooling.

[0003] In the field of household refrigeration, the ambient temperature directly affects the energy consumption of the entire machine. Improving the detection accuracy of the ambient temperature is conducive to more precise adjustment of the control strategy, thereby improving the energy-saving effect. Summary of the invention

[0004] The embodiments of the present invention provide a refrigeration equipment control method, a refrigeration equipment, a refrigeration equipment control device, an electronic device and a computer-readable storage medium to overcome the above problems or at least partially solve the above problems.

[0005] The embodiment of the present invention discloses a refrigeration equipment control method, which is applied to a main controller of the refrigeration equipment, wherein the main controller is configured with a corresponding temperature acquisition board, and the temperature acquisition board is provided with a temperature measurement module and a resistance temperature detector, including:

[0006] Calling the temperature measurement module to obtain the temperature value of the temperature measurement module;

[0007] When it is determined that the temperature value of the temperature measuring module is abnormal and the voltage value of the voltage dividing circuit obtained by the resistance temperature detector has been stored, determining a temperature measuring module control value corresponding to the voltage value of the voltage dividing circuit;

[0008] Determine the temperature measurement module control value as the effective temperature value;

[0009] The refrigeration device is controlled based on the effective temperature value.

[0010] Optionally, it also includes:

[0011] When it is determined that the temperature value of the temperature measuring module is normal, the temperature value of the temperature measuring module is determined as a temperature measuring module control value of the voltage value of the voltage divider circuit;

[0012] The temperature value of the temperature measurement module is determined as the effective temperature value.

[0013] Optionally, it also includes:

[0014] determining whether a voltage value of a voltage divider circuit obtained by the resistance temperature detector is stored;

[0015] When it is determined that the voltage value of the voltage divider circuit obtained by the resistance temperature detector is not stored, obtaining a historical effective temperature value;

[0016] The refrigeration equipment is controlled based on the historical effective temperature value.

[0017] Optionally, before the step of determining whether the voltage value of the voltage divider circuit obtained by the resistance temperature detector is stored, the method further includes:

[0018] Determine whether the temperature measurement module reference value corresponding to the stored voltage value of the voltage divider circuit covers the preset target temperature range;

[0019] If it is determined that the temperature measurement module reference value corresponding to the stored voltage value of the voltage divider circuit has covered the preset target temperature range, the step of determining the temperature measurement module reference value corresponding to the voltage value of the voltage divider circuit is performed.

[0020] Optionally, it also includes:

[0021] If it is determined that the temperature measurement module comparison value corresponding to the stored voltage value of the voltage divider circuit does not cover the preset target temperature range, the step of determining whether the voltage value of the voltage divider circuit obtained by the resistance temperature detector is stored is performed.

[0022] The embodiment of the present invention further discloses a refrigeration device, which includes a main controller and a temperature collection board corresponding to the main controller, wherein the temperature collection board is provided with a temperature measurement module and a resistance temperature detector, and the main controller is configured as follows:

[0023] Calling the temperature measurement module to obtain the temperature value of the temperature measurement module;

[0024] When it is determined that the temperature value of the temperature measuring module is abnormal and the voltage value of the voltage dividing circuit obtained by the resistance temperature detector has been stored, determining a temperature measuring module control value corresponding to the voltage value of the voltage dividing circuit;

[0025] Determine the temperature measurement module control value as the effective temperature value;

[0026] The refrigeration device is controlled based on the effective temperature value.

[0027] Optionally, the main controller includes an integrated circuit chip, and the integrated circuit chip performs data interaction with the temperature measurement module based on a serial communication protocol;

[0028] The integrated circuit chip is connected to the temperature measurement module via a serial clock communication line and a serial data communication line.

[0029] Optionally, the resistance temperature detector is configured with a corresponding fixed-value resistor, and the resistance temperature detector and the fixed-value resistor are connected in series between a power supply and a ground of a serial communication protocol communication line.

[0030] Optionally, the integrated circuit chip is provided with an analog-to-digital conversion sampling port;

[0031] The integrated circuit chip obtains the voltage value of the voltage divider circuit through the analog-to-digital conversion sampling port.

[0032] The embodiment of the present invention further discloses a refrigeration equipment control device, which is applied to a main controller of the refrigeration equipment, wherein the main controller is provided with a corresponding temperature acquisition board, and the temperature acquisition board is provided with a temperature measurement module and a resistance temperature detector, including:

[0033] A temperature measurement module temperature value acquisition module is used to call the temperature measurement module to obtain the temperature value of the temperature measurement module;

[0034] a temperature measurement module reference value determination module, for determining a temperature measurement module reference value corresponding to the voltage value of the voltage divider circuit when it is determined that the temperature value of the temperature measurement module is abnormal and the voltage value of the voltage divider circuit obtained by the resistance temperature detector has been stored;

[0035] An effective temperature value determination module, used to determine the temperature measurement module control value as an effective temperature value;

[0036] A refrigeration equipment control module is used to control the refrigeration equipment based on the effective temperature value.

[0037] The embodiment of the present invention further discloses an electronic device, comprising a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory communicate with each other via the communication bus;

[0038] The memory is used to store computer programs;

[0039] The processor is used to implement the method described in the embodiment of the present invention when executing the program stored in the memory.

[0040] The embodiment of the present invention further discloses a computer-readable storage medium having instructions stored thereon, which, when executed by one or more processors, enables the processors to execute the method described in the embodiment of the present invention.

[0041] The embodiments of the present invention include the following advantages:

[0042] In an embodiment of the present invention, the temperature value of the temperature measuring module is acquired by calling the temperature measuring module; when it is determined that the temperature value of the temperature measuring module is abnormal and the voltage value of the voltage dividing circuit acquired by the resistance temperature detector has been stored, a temperature measuring module reference value corresponding to the voltage value of the voltage dividing circuit is determined; the temperature measuring module reference value is determined as a valid temperature value; and the refrigeration equipment is controlled based on the valid temperature value, so as to avoid the refrigeration equipment being unable to be controlled with the correct ambient temperature when an abnormality occurs in the temperature value of the temperature measuring module transmitted based on a serial data communication protocol, thereby improving the accuracy of obtaining the ambient temperature of the refrigeration equipment, and further improving the control efficiency of the refrigeration equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 is a flowchart of a method for controlling a refrigeration device provided in an embodiment of the present invention;

[0044] Figure 2 It is a structural schematic diagram of a main controller and a temperature acquisition board provided in an embodiment of the present invention;

[0045] Figure 3 It is a structural schematic diagram of another main controller and temperature collection board provided in an embodiment of the present invention;

[0046] Figure 4 is a flow chart of a refrigeration equipment control method provided in an embodiment of the present invention;

[0047] Figure 5 is a structural block diagram of a refrigeration equipment control device provided in an embodiment of the present invention;

[0048] Figure 6 is a hardware structure block diagram of an electronic device provided in an embodiment of the present invention;

[0049] Figure 7 is a schematic diagram of a computer-readable medium provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0050] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0051] In practical applications, in order to improve the energy-saving effect of refrigeration equipment, high-precision integrated temperature measurement modules can be used to gradually replace traditional resistance temperature detectors and become the preferred ambient temperature detection solution for refrigeration appliances.

[0052] Since the heat dissipation of the main controller will seriously affect the detection value, the sensor needs to be far away from the main controller, and the two can only exchange data through the communication line.

[0053] However, the integrated temperature measurement module generally only provides a serial communication protocol communication interface, and the serial communication protocol communication line has poor anti-interference ability and is prone to data loss.

[0054] To solve the above problems, a temperature measurement integrated circuit chip can be added. The temperature measurement integrated circuit chip and the temperature measurement module are set together on the same integrated circuit board, and the two are connected through a printed serial communication protocol communication line. The temperature measurement integrated circuit chip reads the detection result of the temperature measurement module through the serial communication protocol link, and then forwards it to the main controller through other reliable inter-board communication methods such as UART, 485 and other communication circuits. However, this temperature measurement solution undoubtedly greatly increases the cost of use.

[0055] UART (Universal Asynchronous Receiver-Transmitter) is a commonly used serial communication protocol that converts parallel data into serial data for transmission on a single line. UART interface is commonly used for low-speed data communication between microcontrollers and computers, and between various electronic devices.

[0056] Features of UART:

[0057] Asynchronous communication: The sender and receiver do not need a unified clock signal, and are synchronized through start bit, stop bit and check bit.

[0058] Easy to use: low implementation cost and relatively simple hardware circuit.

[0059] Low rate: The transmission rate is relatively low, generally below 115200bps.

[0060] Point-to-point communication: generally used for direct connection between two devices.

[0061] 485 is a multi-point serial communication bus standard that defines electrical characteristics and physical specifications. The 485 interface is usually used in conjunction with the UART interface to achieve serial communication between multiple devices.

[0062] Features of 485:

[0063] Multipoint communication: multiple devices can be connected to achieve bus-type communication.

[0064] Differential signal: Differential signal transmission is adopted, which has strong anti-interference ability and long transmission distance.

[0065] Half-duplex communication: Only one device can send data at a time, and the other devices are in the receiving state.

[0066] Bus topology: devices are connected through a bus to form a network.

[0067] If the temperature measurement integrated circuit chip is not added, and the temperature measurement module communicates directly with the main controller using a serial communication protocol, when data loss occurs, only the previously correct non-real-time ambient temperature data can be used to calculate the control strategy, resulting in large errors.

[0068] Reference Figure 1 , shows a flowchart of a method for controlling a refrigeration device provided in an embodiment of the present invention, which may specifically include the following steps:

[0069] Step 101, calling the temperature measurement module to obtain the temperature value of the temperature measurement module;

[0070] Step 102, when it is determined that the temperature value of the temperature measuring module is abnormal, and the voltage value of the voltage dividing circuit obtained by the resistance temperature detector has been stored, determining a temperature measuring module reference value corresponding to the voltage value of the voltage dividing circuit;

[0071] Step 103, determining the temperature measurement module reference value as a valid temperature value;

[0072] Step 104: Control the refrigeration equipment based on the effective temperature value.

[0073] refer to Figure 2 , Figure 2 It is a structural schematic diagram of a main controller and a temperature acquisition board provided in an embodiment of the present invention;

[0074] The embodiment of the present invention can be applied to a main controller of a refrigeration device, wherein the main controller is configured with a corresponding temperature collection board, and the temperature collection board is provided with a temperature measurement module and a resistance temperature detector.

[0075] PCB is the abbreviation of Printed Circuit Board, which is translated into Chinese as printed circuit board. It is the "home" of electronic components and the nervous system of electronic products. Simply put, PCB is a board with circuit patterns printed on it, which is used to connect electronic components and make them work together.

[0076] The role of PCB:

[0077] Carrying electronic components: PCB provides a solid mounting platform for electronic components.

[0078] Connecting Circuits: The wire patterns on the PCB connect the various electronic components to form a complete circuit.

[0079] Insulation protection: The non-conductive layer of the PCB can protect the circuit and prevent short circuits.

[0080] Signal transmission: The wires on the PCB are responsible for transmitting signals and enabling communication between different components.

[0081] The structure of PCB:

[0082] A PCB is mainly composed of the following parts:

[0083] Substrate: The base material of PCB, usually epoxy resin fiberglass board, with good insulation and mechanical properties.

[0084] Copper foil: A layer of copper foil applied to a substrate, which is etched to form a circuit pattern.

[0085] Solder Mask: A thin film that covers the unused portion of the copper foil to prevent solder paste from shorting during soldering.

[0086] Silk-screen layer: Printed with component logos and numbers to facilitate production and maintenance.

[0087] PCB production process:

[0088] The PCB production process mainly includes the following steps:

[0089] Design: Use electronic design automation (EDA) software to draw circuit schematics and PCB layouts.

[0090] Board making: According to the design drawings, PCB is made through processes such as photolithography and etching.

[0091] SMT: Mounting electronic components onto PCB.

[0092] Soldering: By heating at high temperature, the solder is melted to connect the components and the pads on the PCB.

[0093] Testing: Perform functional tests on the PCB to ensure that the circuit works properly.

[0094] Classification of PCB

[0095] According to the number of layers: single-sided board, double-sided board, multi-layer board.

[0096] According to the material: hard board, soft board, flexible rigid board.

[0097] According to special uses: high-frequency boards, high-density interconnect boards (HDI), etc.

[0098] PCB is widely used in various electronic products, such as:

[0099] Computer: motherboard, graphics card, network card, etc.

[0100] Mobile phones: mobile phone motherboards, flexible circuit boards, etc.

[0101] Home appliances: TV, refrigerator, washing machine, etc.

[0102] Automotive electronics: car dashboard, on-board computer, etc.

[0103] Industrial control: PLC, inverter, etc.

[0104] PCB is the core component of electronic products. It connects electronic components one by one to achieve complex functions. With the continuous development of electronic technology, the manufacturing process and performance of PCB are also constantly improving, providing strong support for the miniaturization and high performance of electronic products.

[0105] The temperature acquisition board in the embodiment of the present invention may be a PCB integrated with a temperature measurement module and a resistance temperature detector.

[0106] In a specific implementation, the temperature measurement module of the embodiment of the present invention can be a chip that integrates a temperature sensor, a processor, and a communication circuit, which can convert the temperature into a digital signal and transmit it to the main controller, and is generally placed on the hinged cover of the refrigerator.

[0107] The resistance temperature detector can be an RTD sensor, which is a resistance temperature detector that determines the temperature by measuring the change in resistance. Its working principle is that when the temperature changes, the resistance value of the RTD will also change regularly. By measuring the change in this resistance value, the corresponding temperature can be accurately calculated.

[0108] Advantages of RTD sensors:

[0109] High precision: RTD sensors have very high measurement accuracy, which can reach 0.01℃ or even higher.

[0110] Good Linearity: The relationship between the resistance and temperature of the RTD is very linear, making calibration and data processing simple.

[0111] Good long-term stability: RTD sensors have good long-term stability and high repeatability.

[0112] Wide measurement range: RTD sensors can measure from low temperature to high temperature, suitable for a variety of applications.

[0113] Types of RTD Sensors:

[0114] According to different materials, RTD sensors can be divided into platinum RTD, copper RTD, nickel RTD, etc. Among them, platinum RTD has the highest accuracy and stability and is the most widely used one.

[0115] The measurement principle of RTD sensor:

[0116] The measurement of RTD sensors is usually achieved using circuits such as Wheatstone bridges or differential amplifiers. By measuring the resistance value of the RTD and using a pre-established calibration curve, the corresponding temperature value can be calculated.

[0117] RTD sensor selection:

[0118] When selecting an RTD sensor, the following factors need to be considered:

[0119] Measuring range: Select the appropriate RTD sensor according to the temperature range that needs to be measured.

[0120] Accuracy: Select the appropriate RTD sensor based on the measurement accuracy requirements.

[0121] Response time: Select the appropriate RTD sensor based on the measurement speed requirements.

[0122] Environmental conditions: Select the appropriate RTD sensor according to the temperature, humidity, pressure and other conditions of the working environment.

[0123] Compared with thermocouples, RTD sensors have higher accuracy, better linearity and longer service life.

[0124] In a specific implementation, the embodiment of the present invention can call the temperature measurement module to obtain the temperature value of the temperature measurement module, and then determine whether the temperature value of the temperature measurement module is abnormal.

[0125] In practical applications, the following aspects are usually considered to determine whether the temperature value of the temperature measurement module is abnormal:

[0126] Comparison of set temperature and actual temperature:

[0127] If the actual temperature deviates too much from the temperature set by the user, there may be an abnormality.

[0128] The deviation range can be adjusted according to factors such as refrigerator model and ambient temperature.

[0129] Analysis of historical temperature data:

[0130] Establish a baseline of temperature changes by analyzing temperature data over a period of time.

[0131] If the current temperature deviates significantly from historical data, there may be an anomaly.

[0132] Statistical methods, such as standard deviation and confidence interval, can be used to determine the degree of abnormality of temperature data.

[0133] Judgment of sensor failure:

[0134] The temperature measurement module may include multiple sensors. If the data from multiple sensors are inconsistent, or the sensor data does not match other parameters (such as the operating status of the compressor), there may be a sensor failure.

[0135] Sensor failure can be detected by redundant sensors or self-test functions.

[0136] In an optional embodiment of the present invention, whether the temperature value of the temperature measuring module is abnormal can be determined in the following manner. The communication data sent by the temperature measuring module can include valid information and verification information.

[0137] Effective information: refers to the actual data transmitted, such as the temperature value of the refrigerator, sensor ID, etc.

[0138] Check information: It is a check code obtained by calculating the valid information through a certain algorithm, which is used to detect whether errors occur in the data transmission process.

[0139] Verification principle: The sending end (temperature measurement module) and the receiving end (main controller) use the same algorithm to calculate the valid information and obtain the same verification code. If the received verification code is inconsistent with the calculated verification code, it means that an error occurred during the data transmission process, and the temperature value of the temperature measurement module is determined to be abnormal and needs to be retransmitted.

[0140] During the data transmission process, interference may occur, resulting in data errors. Checksum information can help detect and correct these errors. By checking the information, communication failures can be discovered and handled in a timely manner, improving the stability of the system.

[0141] Common verification algorithms:

[0142] Parity check: Calculate the number of 1s in the data and determine whether the data is wrong based on the parity bit.

[0143] CRC checksum: treat the data as a long binary number, divide the binary number with a specific divider, and the remainder obtained is the CRC checksum.

[0144] Checksum: Group the data into bytes or words, then sum the values ​​of all the groups. The sum is the checksum.

[0145] By analyzing the data collected by the temperature sensor, combined with historical data and verification information, it is possible to effectively determine whether the refrigerator temperature is abnormal. If an abnormality is found, the system can issue an alarm to remind the user or take appropriate measures to ensure the normal operation of the refrigerator.

[0146] In a specific implementation, when the RTD sensor of the embodiment of the present invention measures the temperature of a specific point, its resistance value will change with the temperature. By connecting in series with a fixed value resistor, a voltage divider circuit is formed to convert the resistance change into a voltage change, i.e., the voltage value of the voltage divider circuit, which is then obtained by the main controller through analog-to-digital conversion sampling.

[0147] According to an embodiment of the present invention, after the refrigeration equipment is powered on, the temperature value of the temperature measuring module and the RTD sampling value (voltage value of the voltage divider circuit) of the temperature measuring module can be continuously read. When it is determined that the temperature value of the temperature measuring module is normal, the voltage divider circuit voltage value and the corresponding temperature measuring module temperature value are stored as temperature measuring module reference values, and then a comparison table of the temperature measuring module reference values ​​and the voltage divider circuit voltage values ​​of the temperature measuring module is established.

[0148] When it is determined that the temperature value of the temperature measuring module is abnormal and the voltage value of the voltage divider circuit obtained by the resistance temperature detector has been stored, the temperature measuring module reference value corresponding to the voltage value of the voltage divider circuit can be determined by querying the comparison table. After the temperature measuring module reference value is determined as the effective temperature value, the refrigeration equipment is controlled based on the effective temperature value.

[0149] In the intelligent control of refrigerators, control based on ambient temperature is a common strategy. By monitoring the ambient temperature in real time, more precise temperature regulation can be achieved, improving the energy efficiency and service life of the refrigerator.

[0150] After completing the temperature acquisition, data processing and analysis can be performed:

[0151] Data cleaning: De-noising and filtering are performed on the collected data to remove outliers.

[0152] Data analysis: Based on historical data and real-time data, a temperature change model is established to predict future temperature trends.

[0153] Abnormal detection: Set thresholds to generate alarms for temperature data that exceeds the normal range.

[0154] Control strategy:

[0155] PID control: Through proportional, integral and derivative control, the compressor speed, fan speed and other parameters can be adjusted to achieve the purpose of accurately controlling the internal temperature of the refrigerator.

[0156] Fuzzy control: Convert the temperature control problem into a fuzzy control problem, and use fuzzy rules to make inferences to achieve the control of nonlinear systems.

[0157] Adaptive control: Adaptively adjust control parameters according to changes in ambient temperature to improve the robustness of the system.

[0158] User Interaction:

[0159] APP control: Users can set target temperature, view historical data, and adjust control parameters through the mobile phone APP.

[0160] Voice control: Through the voice assistant, users can realize voice control of the refrigerator.

[0161] For example, suppose the refrigerator is set to 4°C and the ambient temperature sensor detects that the ambient temperature is 30°C. At this time, the temperature inside the refrigerator may be higher than the set temperature. The control system can be adjusted according to the following strategies:

[0162] Increase the compressor working time: increase the cooling capacity and accelerate the cooling.

[0163] Increase fan speed: speed up cold air circulation and improve cooling efficiency.

[0164] Close the door insulation: Reduce the amount of heat entering the refrigerator.

[0165] Turn on fast cooling mode: reduce the refrigerator temperature to the set value in a short time.

[0166] Controlling the refrigerator based on the ambient temperature can achieve a smarter and more energy-efficient temperature control effect. Through sensor data collection, data analysis, control strategy optimization and user interaction, an efficient and reliable refrigerator control system can be built.

[0167] In an embodiment of the present invention, the temperature value of the temperature measuring module is acquired by calling the temperature measuring module; when it is determined that the temperature value of the temperature measuring module is abnormal and the voltage value of the voltage dividing circuit acquired by the resistance temperature detector has been stored, a temperature measuring module reference value corresponding to the voltage value of the voltage dividing circuit is determined; the temperature measuring module reference value is determined as a valid temperature value; and the refrigeration equipment is controlled based on the valid temperature value, so as to avoid the refrigeration equipment being unable to be controlled with the correct ambient temperature when an abnormality occurs in the temperature value of the temperature measuring module transmitted based on a serial data communication protocol, thereby improving the accuracy of obtaining the ambient temperature of the refrigeration equipment, and further improving the control efficiency of the refrigeration equipment.

[0168] Based on the above embodiment, a variant embodiment of the above embodiment is proposed. It should be noted that in order to make the description concise, only the differences from the above embodiment are described in the variant embodiment.

[0169] In an optional embodiment of the present invention, the main controller includes an integrated circuit chip and a non-volatile memory, and the integrated circuit chip performs data interaction with the temperature measurement module based on a serial communication protocol;

[0170] The integrated circuit chip is connected to the temperature measurement module via a serial clock communication line and a serial data communication line.

[0171] In an optional embodiment of the present invention, the resistance temperature detector is configured with a corresponding fixed-value resistor, and the resistance temperature detector and the fixed-value resistor are connected in series between a power supply and a ground of a serial communication protocol communication line.

[0172] In an optional embodiment of the present invention, the integrated circuit chip is provided with an analog-to-digital conversion sampling port;

[0173] The integrated circuit chip obtains the voltage value of the voltage divider circuit through the analog-to-digital conversion sampling port.

[0174] refer to Figure 3 , Figure 3 It is a structural schematic diagram of another main controller and temperature collection board provided in an embodiment of the present invention;

[0175] Figure 3 The circuit diagram of the temperature acquisition system of the embodiment of the present invention is shown. The system mainly consists of two parts: the main controller and the temperature acquisition board:

[0176] Main controller: Contains a microcontroller unit (MCU), which is responsible for the control and data processing of the entire system, and an EEPROM for data storage.

[0177] MCU (Microcontroller Unit)

[0178] Definition: MCU is an integrated circuit chip that integrates multiple functional modules such as processor, memory, input / output interface, etc. It can be regarded as a microcomputer that can run programs independently and control external devices.

[0179] Function:

[0180] Control: Control the operation of various electronic devices, such as motors, sensors, displays, etc.

[0181] Process data: Collect and process data from sensors and make corresponding control decisions.

[0182] Communication: Communicate with other devices, such as through interfaces such as UART, I2C, SPI, etc.

[0183] EEPROM (Electrically Erasable Programmable Read-Only Memory)

[0184] Definition: EEPROM is a non-volatile memory, that is, data will not be lost after power failure. It can be erased and written repeatedly, but the number of erase and write times is limited.

[0185] Function:

[0186] Storage data: used to store some data that needs to be saved for a long time, such as equipment configuration information, calibration data, etc.

[0187] Features:

[0188] Non-volatile: Data can be stored for a long time.

[0189] Erasable: Data can be erased and written multiple times.

[0190] Slower write speed: Compared with SRAM, DRAM and other memories, the write speed is slower.

[0191] Relationship between MCU and EEPROM

[0192] Complementary relationship: MCU is responsible for control and calculation, and EEPROM is responsible for data storage.

[0193] Collaborative work: MCU saves and reads data by reading and writing EEPROM to configure and control the device.

[0194] MCU is the brain of electronic devices, responsible for control and decision-making; EEPROM is the memory of electronic devices, responsible for storing data. The two complement each other and together constitute the core of the electronic system.

[0195] The MCU of the main controller is the "brain" of the system and is responsible for coordinating the work of various modules.

[0196] For example, the MCU can be used to initialize the IIC communication interface and exchange data with the temperature measurement module. The voltage value of the voltage divider circuit of the RTD sensor is read through the AD sampling interface, and the corresponding temperature measurement module control value is determined, so as to process the data transmitted by the temperature measurement module and the data obtained by AD sampling, and store the processed data in the EEPROM; according to actual needs, the MCU can also send the data to other devices or display it.

[0197] The temperature acquisition board may include a temperature measurement module and an RTD sensor to collect the ambient temperature and the temperature of a specific point;

[0198] The temperature measurement module and the integrated circuit chip can use a serial communication protocol, namely, an IIC protocol, to communicate data with the main controller. The integrated circuit chip can be connected to the temperature measurement module via a serial clock communication line and a serial data communication line.

[0199] SCL and SDA are signal lines on two common serial communication protocols I2C (Inter-Integrated Circuit) bus.

[0200] I2C bus: I2C is a simple, low-speed serial communication protocol commonly used to connect multiple devices. It only requires two lines: SCL and SDA.

[0201] SCL (Serial Clock): Serial clock line, used to generate clock signals and synchronize data transmission.

[0202] SDA (Serial Data): Serial data line, used to transmit data.

[0203] Function: Collect ambient temperature and send the temperature data to the main controller through IIC.

[0204] RTD Sensors:

[0205] Working principle: The resistance value of RTD (Resistance Temperature Detector) changes with temperature. By measuring the change in resistance value, the corresponding temperature can be calculated.

[0206] Circuit connection: RTD is connected in series with a fixed resistor to form a voltage divider circuit. The voltage at the voltage divider point is proportional to the resistance value of the RTD, so the temperature can be calculated by measuring this voltage value. The resistance temperature detector and the fixed resistor are connected in series between the power supply and ground of the serial communication protocol communication line.

[0207] In electronic circuits, VCC and GND represent the power supply and ground in the circuit.

[0208] The full name of VCC is Voltage, Common, Collector.

[0209] Meaning: It represents the supply voltage of the circuit, that is, the voltage that provides energy to the circuit.

[0210] Function: VCC provides the required voltage for each component in the circuit to operate, so that the circuit can operate normally.

[0211] The full name of GND is Ground, which means grounding.

[0212] What it means: It represents the reference point of a circuit, that is, the point where the voltage is zero.

[0213] Function: GND is the reference point for all voltage measurements in the circuit, and all voltages are relative to GND.

[0214] VCC and GND are relative concepts; VCC is the positive pole and GND is the negative pole. There is a voltage difference between the two, and this voltage difference is the power supply voltage of the circuit.

[0215] All circuit components are connected between VCC and GND to form a closed loop so that current can flow and the circuit can work.

[0216] VCC is the supply voltage of the circuit, and GND is the reference point of the circuit. VCC and GND are necessary for the normal operation of the circuit.

[0217] In practical applications, the voltage value of the voltage divider circuit obtained by the resistance temperature detector is an analog signal, and AD sampling is required to convert the continuously changing analog signal (such as voltage) into a discrete digital signal. AD sampling is analog-to-digital conversion. The integrated circuit chip of the main controller needs to obtain the voltage at the RTD sensor voltage divider point through the AD sampling interface and convert it into a digital value. AD sampling: The voltage at the voltage divider point is connected to the AD sampling interface (analog-to-digital conversion sampling) of the MCU through a wire, and the MCU converts the analog voltage into a digital signal.

[0218] EEPROM is used to store temperature data processed by the main controller.

[0219] Characteristics of EEPROM: Non-volatility, that is, data will not be lost after power failure.

[0220] In a specific implementation, the embodiment of the present invention can continuously read the temperature value of the temperature measuring module and the RTD sampling value (voltage value of the voltage divider circuit) of the temperature measuring module through the MCU based on the serial communication protocol after the refrigeration equipment is powered on; specifically, the voltage value of the voltage divider circuit can be collected through AD sampling; when the MCU determines that the temperature value of the temperature measuring module is normal, the voltage value of the voltage divider circuit and the temperature value of the temperature measuring module corresponding thereto are stored in the EEPROM as the temperature measuring module reference value, and then a reference table of the temperature measuring module reference value and the voltage divider circuit voltage value of the temperature measuring module is established, that is, the voltage divider circuit voltage value and the temperature measuring module temperature value corresponding thereto are stored in the EEPROM in the form of a reference table. When it is determined that the temperature value of the temperature measuring module is abnormal, and the EEPROM has stored the voltage value of the voltage divider circuit obtained by the resistance temperature detector, the temperature measuring module reference value corresponding to the voltage divider circuit can be determined by querying the reference table, and after the temperature measuring module reference value is determined as the effective temperature value, the refrigeration equipment is controlled based on the effective temperature value.

[0221] In order to enable those skilled in the art to better understand the embodiments of the present invention, some technical terms involved in the embodiments of the present invention are explained below.

[0222] MCU:Microcontroller Unit, microcontroller unit

[0223] IIC: (Inter-Integrated Circuit) is a commonly used serial communication protocol used to connect multiple devices. In this design, the temperature measurement module communicates with the main controller through IIC and sends the measured temperature data to the main controller.

[0224] RTD: Resistance Temperature Detector, resistance temperature detector

[0225] AD:Analog-to-Digital, analog-to-digital conversion

[0226] EEPROM: Electrically Erasable Programmable Read-Only Memory, Electrically Erasable Programmable Read-Only Memory.

[0227] refer to Figure 4 , Figure 4 is a flow chart of a refrigeration equipment control method provided in an embodiment of the present invention;

[0228] In an optional embodiment of the present invention, it also includes:

[0229] When it is determined that the temperature value of the temperature measuring module is normal, the temperature value of the temperature measuring module is determined as a temperature measuring module control value of the voltage value of the voltage divider circuit;

[0230] The temperature value of the temperature measurement module is determined as the effective temperature value.

[0231] In a specific implementation, the embodiment of the present invention can continuously read the temperature value of the temperature measuring module and the RTD sampling value (voltage value of the voltage divider circuit) of the temperature measuring module through the MCU based on the serial communication protocol after the refrigeration equipment is powered on; specifically, the voltage value of the voltage divider circuit can be collected through AD sampling; when the MCU determines that the temperature value of the temperature measuring module is normal, the voltage value of the voltage divider circuit and the temperature value of the temperature measuring module corresponding thereto are stored in the EEPROM as the temperature measuring module reference value, and then a reference table of the temperature measuring module reference value and the voltage divider circuit voltage value of the temperature measuring module is established, that is, the voltage divider circuit voltage value and the temperature measuring module temperature value corresponding thereto are stored in the EEPROM in the form of a reference table. When it is determined that the temperature value of the temperature measuring module is abnormal, and the EEPROM has stored the voltage value of the voltage divider circuit obtained by the resistance temperature detector, the temperature measuring module reference value corresponding to the voltage divider circuit can be determined by querying the reference table, and after the temperature measuring module reference value is determined as the effective temperature value, the refrigeration equipment is controlled based on the effective temperature value.

[0232] For example, the temperature value of the temperature measurement module detected by the temperature module is 5.3°C. If it is determined that this is a correct temperature value, and the AD detection value (voltage value of the voltage divider circuit) of the RTD sampling circuit read at the same time is 500, then 5.3°C is determined as the temperature measurement module reference value of 500, and 500 and 5.3 are stored as a set of associated values ​​in the EEPROM reference table. As time goes by, all temperature measurement module temperature values ​​have a corresponding detection value. At the same time, 5.3°C can also be determined as a valid temperature value. As time goes by, all voltage divider circuit voltage values ​​have a corresponding temperature measurement module reference value; when the temperature value of the temperature measurement module obtained during a certain detection process is wrong, if the AD value is detected to be 500 at this time, the correct temperature value at this time can be obtained as 5.3°C according to the corresponding relationship, and 5.3°C is used as the valid temperature value.

[0233] In an optional embodiment of the present invention, it also includes:

[0234] determining whether a voltage value of a voltage divider circuit obtained by the resistance temperature detector is stored;

[0235] When it is determined that the voltage value of the voltage divider circuit obtained by the resistance temperature detector is not stored, obtaining a historical effective temperature value;

[0236] The refrigeration equipment is controlled based on the historical effective temperature value.

[0237] In actual applications, since the data is not stored in the comparison table when it is first acquired, after determining that the temperature value of the temperature measurement module is abnormal, it can be determined whether the voltage value of the voltage divider circuit obtained by the resistance temperature detector is stored in the EEPROM. When it is determined that the voltage value of the voltage divider circuit obtained by the resistance temperature detector is not stored, the historical effective temperature value can be obtained; the refrigeration equipment is controlled based on the historical effective temperature value. For example, if the current RTD value does not exist in the stored data, the previous effective temperature value is maintained to ensure that the temperature control for the refrigeration equipment can operate normally.

[0238] In an optional embodiment of the present invention, before the step of determining whether the voltage value of the voltage divider circuit obtained by the resistance temperature detector is stored, the method further includes:

[0239] Determine whether the temperature measurement module reference value corresponding to the stored voltage value of the voltage divider circuit covers the preset target temperature range;

[0240] If it is determined that the temperature measurement module reference value corresponding to the stored voltage value of the voltage divider circuit has covered the preset target temperature range, the step of determining the temperature measurement module reference value corresponding to the voltage value of the voltage divider circuit is performed.

[0241] In a specific implementation, before determining whether the voltage value of the voltage divider circuit obtained by the resistance temperature detector is stored, the purpose of first determining whether the temperature measurement module reference value corresponding to the stored voltage divider circuit voltage value covers the preset target temperature range is that, as time goes by, the data stored in the EEPROM will gradually improve. Within the preset target temperature range, when all the temperature measurement module reference values ​​corresponding to the RTD temperatures are recorded completely, there is no need to make further judgments when a temperature measurement module communication error occurs again, and the temperature measurement module temperature value corresponding to the current RTD temperature value can be directly read.

[0242] Therefore, if it is determined that the temperature measurement module control value corresponding to the stored voltage value of the voltage divider circuit has covered the preset target temperature range, the temperature measurement module control value corresponding to the voltage value of the voltage divider circuit can be directly determined, thereby realizing the control of the refrigeration equipment based on the effective temperature value after the temperature measurement module control value is determined as the effective temperature value.

[0243] If it is determined that the temperature measurement module reference value corresponding to the stored voltage value of the voltage divider circuit does not cover the preset target temperature range, it is determined whether the voltage divider circuit voltage value obtained by the resistance temperature detector is stored, so as to control the refrigeration equipment based on the effective temperature value after the temperature measurement module reference value is determined as the effective temperature value.

[0244] It should be noted that, for the sake of simplicity, the method embodiments are described as a series of action combinations, but those skilled in the art should be aware that the embodiments of the present invention are not limited by the order of the actions described, because according to the embodiments of the present invention, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions involved are not necessarily required by the embodiments of the present invention.

[0245] The embodiment of the present invention further discloses a refrigeration device, which includes a main controller and a temperature collection board corresponding to the main controller, wherein the temperature collection board is provided with a temperature measurement module and a resistance temperature detector, and the main controller is configured as follows:

[0246] Calling the temperature measurement module to obtain the temperature value of the temperature measurement module;

[0247] When it is determined that the temperature value of the temperature measuring module is abnormal and the voltage value of the voltage dividing circuit obtained by the resistance temperature detector has been stored, determining a temperature measuring module control value corresponding to the voltage value of the voltage dividing circuit;

[0248] Determine the temperature measurement module control value as the effective temperature value;

[0249] The refrigeration device is controlled based on the effective temperature value.

[0250] Optionally, the main controller includes an integrated circuit chip, and the integrated circuit chip performs data interaction with the temperature measurement module based on a serial communication protocol;

[0251] The integrated circuit chip is connected to the temperature measurement module via a serial clock communication line and a serial data communication line.

[0252] Optionally, the resistance temperature detector is configured with a corresponding fixed-value resistor, and the resistance temperature detector and the fixed-value resistor are connected in series between a power supply and a ground of a serial communication protocol communication line.

[0253] Optionally, the integrated circuit chip is provided with an analog-to-digital conversion sampling port;

[0254] The integrated circuit chip obtains the voltage value of the voltage divider circuit through the analog-to-digital conversion sampling port.

[0255] As for the refrigeration equipment embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0256] Reference Figure 5 , shows a structural block diagram of a refrigeration equipment control device provided in an embodiment of the present invention, which may specifically include the following modules:

[0257] A temperature measurement module temperature value acquisition module 501 is used to call the temperature measurement module to obtain the temperature value of the temperature measurement module;

[0258] The temperature measurement module reference value determination module 502 is used to determine the temperature measurement module reference value corresponding to the voltage value of the voltage divider circuit when it is determined that the temperature value of the temperature measurement module is abnormal and the voltage value of the voltage divider circuit obtained by the resistance temperature detector has been stored;

[0259] An effective temperature value determination module 503, used to determine the temperature measurement module control value as an effective temperature value;

[0260] The refrigeration equipment control module 504 is configured to control the refrigeration equipment based on the effective temperature value.

[0261] As for the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0262] In addition, an embodiment of the present invention further provides an electronic device, including: a processor, a memory, and a computer program stored in the memory and executable on the processor. When the computer program is executed by the processor, the various processes of the above-mentioned refrigeration equipment control method embodiment are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be described here.

[0263] The embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, each process of the above-mentioned refrigeration equipment control method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, it is not repeated here. The computer-readable storage medium is, for example, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0264] Figure 6 A schematic diagram of the hardware structure of an electronic device for implementing various embodiments of the present invention.

[0265] The electronic device 600 includes but is not limited to: a radio frequency unit 601, a network module 602, an audio output unit 603, an input unit 604, a sensor 605, a display unit 606, a user input unit 607, an interface unit 608, a memory 609, a processor 610, and a power supply 611. Those skilled in the art will appreciate that Figure 6 The electronic device structure shown in the figure does not constitute a limitation on the electronic device, and the electronic device may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently. In the embodiments of the present invention, the electronic device includes but is not limited to a mobile phone, a tablet computer, a laptop computer, a PDA, a vehicle-mounted terminal, a wearable device, and a pedometer.

[0266] It should be understood that in the embodiment of the present invention, the radio frequency unit 601 can be used for receiving and sending signals during information transmission or communication. Specifically, after receiving downlink data from the base station, it is sent to the processor 610 for processing; in addition, uplink data is sent to the base station. Generally, the radio frequency unit 601 includes but is not limited to an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc. In addition, the radio frequency unit 601 can also communicate with the network and other devices through a wireless communication system.

[0267] The electronic device provides users with wireless broadband Internet access through the network module 602, such as helping users to send and receive emails, browse web pages, and access streaming media.

[0268] The audio output unit 603 can convert the audio data received by the RF unit 601 or the network module 602 or stored in the memory 609 into an audio signal and output it as sound. Moreover, the audio output unit 603 can also provide audio output related to a specific function performed by the electronic device 600 (for example, a call signal reception sound, a message reception sound, etc.). The audio output unit 603 includes a speaker, a buzzer, a receiver, etc.

[0269] The input unit 604 is used to receive audio or video signals. The input unit 604 may include a graphics processor (GPU) 6041 and a microphone 6042, and the graphics processor 6041 processes the image data of a static picture or video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The processed image frame can be displayed on the display unit 606. The image frame processed by the graphics processor 6041 can be stored in the memory 609 (or other storage medium) or sent via the radio frequency unit 601 or the network module 602. The microphone 6042 can receive sound and can process such sound into audio data. The processed audio data can be converted into a format output that can be sent to a mobile communication base station via the radio frequency unit 601 in the case of a telephone call mode.

[0270] The electronic device 600 also includes at least one sensor 605, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor and a proximity sensor, wherein the ambient light sensor can adjust the brightness of the display panel 6061 according to the brightness of the ambient light, and the proximity sensor can turn off the display panel 6061 and / or the backlight when the electronic device 600 is moved to the ear. As a type of motion sensor, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), and can detect the magnitude and direction of gravity when stationary, which can be used to identify the posture of the electronic device (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer, tapping), etc.; the sensor 605 can also include a fingerprint sensor, a pressure sensor, an iris sensor, a molecular sensor, a gyroscope, a barometer, a hygrometer, a thermometer, an infrared sensor, etc., which will not be repeated here.

[0271] The display unit 606 is used to display information input by the user or information provided to the user. The display unit 606 may include a display panel 6061, which may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like.

[0272] The user input unit 607 can be used to receive input digital or character information, and to generate key signal input related to user settings and function control of the electronic device. Specifically, the user input unit 607 includes a touch panel 6071 and other input devices 6072. The touch panel 6071, also known as a touch screen, can collect the user's touch operation on or near it (such as the user's operation on the touch panel 6071 or near the touch panel 6071 using any suitable object or accessory such as a finger, stylus, etc.). The touch panel 6071 may include two parts: a touch detection device and a touch controller. Among them, the touch detection device detects the user's touch orientation, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into contact coordinates, and then sends it to the processor 610, receives the command sent by the processor 610 and executes it. In addition, the touch panel 6071 can be implemented in various types such as resistive, capacitive, infrared and surface acoustic waves. In addition to the touch panel 6071, the user input unit 607 may also include other input devices 6072. Specifically, other input devices 6072 may include but are not limited to a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which will not be described in detail here.

[0273] Furthermore, the touch panel 6071 may be overlaid on the display panel 6061. When the touch panel 6071 detects a touch operation on or near it, it is transmitted to the processor 610 to determine the type of touch event. Then, the processor 610 provides corresponding visual output on the display panel 6061 according to the type of touch event. Figure 6 In the figure, the touch panel 6071 and the display panel 6061 are used as two independent components to realize the input and output functions of the electronic device. However, in some embodiments, the touch panel 6071 and the display panel 6061 can be integrated to realize the input and output functions of the electronic device, which is not limited here.

[0274] The interface unit 608 is an interface for connecting an external device to the electronic device 600. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, an audio input / output (I / O) port, a video I / O port, a headphone port, etc. The interface unit 608 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the electronic device 600 or may be used to transmit data between the electronic device 600 and an external device.

[0275] The memory 609 can be used to store software programs and various data. The memory 609 can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system, an application required for at least one function (such as a sound playback function, an image playback function, etc.), etc.; the data storage area can store data created according to the use of the mobile phone (such as audio data, a phone book, etc.), etc. In addition, the memory 609 can include a high-speed random access memory, and can also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other volatile solid-state storage devices.

[0276] The processor 610 is the control center of the electronic device. It uses various interfaces and lines to connect various parts of the entire electronic device. By running or executing software programs and / or modules stored in the memory 609 and calling data stored in the memory 609, it performs various functions of the electronic device and processes data, thereby monitoring the electronic device as a whole. The processor 610 may include one or more processing units; preferably, the processor 610 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, and application programs, and the modem processor mainly processes wireless communications. It is understandable that the above-mentioned modem processor may not be integrated into the processor 610.

[0277] The electronic device 600 may also include a power supply 611 (such as a battery) for supplying power to each component. Preferably, the power supply 611 may be logically connected to the processor 610 through a power management system, thereby implementing functions such as charging, discharging, and power consumption management through the power management system.

[0278] In addition, the electronic device 600 includes some functional modules not shown, which will not be described in detail here.

[0279] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0280] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, a magnetic disk, or an optical disk), and includes a number of instructions for enabling a terminal (which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the methods described in each embodiment of the present invention.

[0281] like Figure 7 As shown, in another embodiment provided by the present invention, a computer-readable storage medium 701 is further provided, in which instructions are stored. When the computer-readable storage medium is run on a computer, the computer executes the refrigeration equipment control method described in the above embodiment.

[0282] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation modes, which are merely illustrative rather than restrictive. Under the guidance of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the present invention and the claims, all of which are within the protection of the present invention.

[0283] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed in the embodiments of the present invention can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.

[0284] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0285] In the embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0286] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0287] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0288] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: various media that can store program codes, such as USB flash drives, mobile hard disks, ROM, RAM, magnetic disks, or optical disks.

[0289] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A refrigeration equipment control method, characterized in that: The method is applied to a main controller of a refrigeration device, wherein the main controller is provided with a corresponding temperature acquisition board, and the temperature acquisition board is provided with a temperature measurement module and a resistance temperature detector, including: Calling the temperature measurement module to obtain the temperature value of the temperature measurement module; When it is determined that the temperature value of the temperature measuring module is abnormal and the voltage value of the voltage dividing circuit obtained by the resistance temperature detector has been stored, determining a temperature measuring module control value corresponding to the voltage value of the voltage dividing circuit; Determine the temperature measurement module control value as the effective temperature value; The refrigeration device is controlled based on the effective temperature value.

2. The method according to claim 1, characterized in that Also includes: When it is determined that the temperature value of the temperature measuring module is normal, the temperature value of the temperature measuring module is determined as a temperature measuring module control value of the voltage value of the voltage divider circuit; The temperature value of the temperature measurement module is determined as the effective temperature value.

3. The method according to claim 1, characterized in that Also includes: determining whether a voltage value of a voltage divider circuit obtained by the resistance temperature detector is stored; When it is determined that the voltage value of the voltage divider circuit obtained by the resistance temperature detector is not stored, obtaining a historical effective temperature value; The refrigeration equipment is controlled based on the historical effective temperature value.

4. The method according to claim 3, characterized in that Before the step of determining whether the voltage value of the voltage divider circuit obtained by the resistance temperature detector is stored, the method further includes: Determine whether the temperature measurement module reference value corresponding to the stored voltage value of the voltage divider circuit covers the preset target temperature range; If it is determined that the temperature measurement module reference value corresponding to the stored voltage value of the voltage divider circuit has covered the preset target temperature range, the step of determining the temperature measurement module reference value corresponding to the voltage value of the voltage divider circuit is performed.

5. The method according to claim 4, characterized in that Also includes: If it is determined that the temperature measurement module comparison value corresponding to the stored voltage value of the voltage divider circuit does not cover the preset target temperature range, the step of determining whether the voltage value of the voltage divider circuit obtained by the resistance temperature detector is stored is performed.

6. A refrigeration device, characterized in that: The refrigeration device comprises a main controller and a temperature acquisition board corresponding to the main controller, wherein the temperature acquisition board is provided with a temperature measurement module and a resistance temperature detector, and the main controller is configured as follows: Calling the temperature measurement module to obtain the temperature value of the temperature measurement module; When it is determined that the temperature value of the temperature measuring module is abnormal and the voltage value of the voltage dividing circuit obtained by the resistance temperature detector has been stored, determining a temperature measuring module control value corresponding to the voltage value of the voltage dividing circuit; Determine the temperature measurement module control value as the effective temperature value; The refrigeration device is controlled based on the effective temperature value.

7. The refrigeration device according to claim 6, characterized in that: The main controller includes an integrated circuit chip, and the integrated circuit chip performs data interaction with the temperature measurement module based on a serial communication protocol; The integrated circuit chip is connected to the temperature measurement module via a serial clock communication line and a serial data communication line.

8. The refrigeration device according to claim 6, characterized in that: The resistance temperature detector is configured with a corresponding fixed-value resistor, and the resistance temperature detector and the fixed-value resistor are connected in series between a power supply and a ground of a serial communication protocol communication line.

9. The refrigeration device according to claim 7, characterized in that: The integrated circuit chip is provided with an analog-to-digital conversion sampling port; The integrated circuit chip obtains the voltage value of the voltage divider circuit through the analog-to-digital conversion sampling port.

10. A refrigeration equipment control device, characterized in that: The device is applied to the main controller of the refrigeration equipment, and the main controller is equipped with a corresponding temperature acquisition board, and the temperature acquisition board is provided with a temperature measurement module and a resistance temperature detector, including: A temperature measurement module temperature value acquisition module is used to call the temperature measurement module to obtain the temperature value of the temperature measurement module; a temperature measurement module reference value determination module, for determining a temperature measurement module reference value corresponding to the voltage value of the voltage divider circuit when it is determined that the temperature value of the temperature measurement module is abnormal and the voltage value of the voltage divider circuit obtained by the resistance temperature detector has been stored; An effective temperature value determination module, used to determine the temperature measurement module control value as an effective temperature value; A refrigeration equipment control module is used to control the refrigeration equipment based on the effective temperature value.

11. An electronic device, characterized in that: It includes a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory communicate with each other through the communication bus; The memory is used to store computer programs; The processor is used to implement the method according to any one of claims 1 to 5 when executing the program stored in the memory.

12. A computer-readable storage medium having instructions stored thereon, which, when executed by one or more processors, cause the processors to perform the method according to any one of claims 1 to 5.

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