Commercial inspection method, device and system for heat pump system and storage medium

Abstract

The invention relates to the field of heat pumps, and discloses a commodity inspection method, device and system of a heat pump system and a storage medium. Starting a target control system in the electric control cabinet to operate in the target operation mode, and acquiring operation parameters of each electronic device in the electric control cabinet; and analyzing the wiring abnormality based on the operation parameters by using the abnormality judgment rule corresponding to each electronic device to obtain a commodity inspection result. According to the invention, the operation of one control system in each electric control cabinet is independently controlled so as to obtain the operation parameters of each electronic device to analyze the wiring abnormity, and because each electric control cabinet is independently controlled, a detailed fault report can be provided, and maintenance personnel can be helped to rapidly position the problem.

Description

Technical Field

[0001] This application relates to the field of heat pumps, and in particular to a commodity inspection method, device, system and storage medium for a multi-heat pump system. Background Art

[0002] With the development and popularization of automation technology, especially its application in equipment detection scenarios, it can reduce the use of most human resources for enterprises. For example, in a heat pump system, wiring abnormalities often occur during the production process, especially in a heat pump system with multiple control systems. In response to this, an automatic commodity inspection solution has been developed based on automation technology. However, in the current solution, it can only detect that there is an abnormality in the entire heat pump system, but cannot determine which control system has the abnormality. Such a commodity inspection result requires a large amount of labor cost for subsequent maintenance and repair. Summary of the Invention

[0003] This application provides a commodity inspection method, device, system and storage medium for a heat pump system to solve the problem that the existing commodity inspection solution cannot locate the abnormal control system in the heat pump system.

[0004] In a first aspect of this application, a commodity inspection method for a heat pump system is provided. The heat pump system includes at least one electric control cabinet, and at least two control systems are provided in each electric control cabinet. The method includes: determining a target operation mode and a target control system based on a detection instruction; starting the target control system in the electric control cabinet to operate in the target operation mode, and obtaining the operation parameters of each electronic device in the electric control cabinet; using the abnormal judgment rules corresponding to each electronic device, analyzing the wiring abnormality based on the operation parameters to obtain a commodity inspection result.

[0005] Optionally, the determining the target operation mode and the target control system based on the detection instruction includes: parsing the device type to be measured and the target electric control cabinet in the detection instruction; determining the target operation mode based on the device type, where the target operation mode is a refrigeration mode or a heating mode; and determining the target control system based on the target electric control cabinet and the configuration of the control systems in the target electric control cabinet.

[0006] Optionally, the obtaining the operation parameters of each electronic device in the electric control cabinet includes: screening the electronic devices in the electric control cabinet based on the target operation mode, and extracting the target electronic devices to be inspected; using a real-time data acquisition unit to collect system operation data from the industrial networks of each control system, where the industrial network is a virtual data transmission network constructed based on an industrial network protocol; and extracting the corresponding operation parameters from the system operation data based on the identification information of each target electronic device, where the operation parameters include at least one of pressure, exhaust temperature, suction temperature, electronic expansion valve state, and four-way valve state.

[0007] Optionally, using the abnormality judgment rules corresponding to each of the electronic devices, analyzing the wiring abnormality based on the operating parameters to obtain the commodity inspection result, including: when the target electronic device is a pressure sensor, calculating a first pressure difference between high and low pressures under the target control system and a second pressure difference between high and low pressures of other control systems in the electric control cabinet where the target control system is located based on the abnormality judgment rule of pressure; determining whether the first pressure difference and the second pressure difference meet the corresponding pressure conditions; if not, determining that there is an abnormality in the high and low pressure wiring of the target control system itself or there is an abnormality in the high and low pressure wiring between the target control system and other control systems in the same electric control cabinet.

[0008] Optionally, using the abnormality judgment rules corresponding to each of the electronic devices, analyzing the wiring abnormality based on the operating parameters to obtain the commodity inspection result, including: when the target electronic device is a gas processing sensor, calculating a gas temperature difference value within a target time period under the target control system based on the abnormality judgment rule of gas processing; determining whether the gas temperature difference value meets the corresponding exhaust temperature condition; if not, determining that there is an abnormality in the gas processing wiring between the target control system and other control systems in the same electric control cabinet.

[0009] Optionally, using the abnormality judgment rules corresponding to each of the electronic devices, analyzing the wiring abnormality based on the operating parameters to obtain the commodity inspection result, including: when the target electronic device is an expansion valve, calculating a return air temperature difference value and an exhaust gas temperature difference value under the target control system in different electric control cabinets based on the abnormality judgment rule of the valve; determining whether the return air temperature difference value and the exhaust gas temperature difference value simultaneously meet the corresponding temperature control conditions; if not, determining that there is an abnormality in the temperature control wiring of the expansion valve between the two target control systems.

[0010] Optionally, using the abnormality judgment rules corresponding to each of the electronic devices, analyzing the wiring abnormality based on the operating parameters to obtain the commodity inspection result, including: when the target operating mode is a refrigeration mode, calculating a refrigeration temperature difference value between the exhaust gas temperature and the antifreeze circuit temperature under the target control system based on the abnormality judgment rule of the four-way valve; determining whether the refrigeration temperature difference value meets the corresponding cooling condition; if not, determining that there is an abnormality in the four-way valve wiring of the target control system itself.

[0011] The second aspect of the present application provides an inspection device for a heat pump system, where the heat pump system includes at least one electric control cabinet, and at least two control systems are provided in each electric control cabinet; the device includes: a determination module for determining a target operation mode and a target control system based on a detection instruction; an acquisition module for starting the target control system in the electric control cabinet to operate in the target operation mode and acquiring the operation parameters of each electronic device in the electric control cabinet; an analysis module for using the abnormal judgment rules corresponding to each electronic device to analyze the wiring abnormality based on the operation parameters to obtain an inspection result.

[0012] The third aspect of the present application provides a heat pump system, including: the heat pump system includes at least one electric control cabinet, a memory, and at least one processor, and instructions are stored in the memory; at least two control systems are provided in each electric control cabinet; the at least one processor calls the instructions in the memory to enable the heat pump centralized control system to execute the above-mentioned inspection method for the heat pump system.

[0013] The fourth aspect of the present application provides a computer-readable storage medium, in which instructions are stored, and when it runs on a computer, it enables the computer to execute the above-mentioned inspection method for the heat pump system.

[0014] In the technical solution provided by the present application, a target operation mode and a target control system are determined based on a detection instruction; the target control system in the electric control cabinet is started to operate in the target operation mode, and the operation parameters of each electronic device in the electric control cabinet are acquired; the abnormal judgment rules corresponding to each electronic device are used to analyze the wiring abnormality based on the operation parameters to obtain an inspection result. In the present application, by separately controlling the operation of one control system in each electric control cabinet to acquire the operation parameters of each electronic device for analyzing the wiring abnormality, since it is a separate control of each electric control cabinet, when an abnormality is detected each time, the position of the abnormality can be clearly known. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the first embodiment of the inspection method for the heat pump system in the present application;

[0016] Figure 2 It is a schematic diagram of the second embodiment of the inspection method for the heat pump system in the present application;

[0017] Figure 3 It is a schematic diagram of an embodiment of the inspection device for the heat pump system in the present application;

[0018] Figure 4 It is a schematic diagram of another embodiment of the inspection device for the heat pump system in the present application;

[0019] Figure 5Schematic diagram of an embodiment of the heat pump system in this application. Detailed implementation manners

[0020] This application provides a commodity inspection method, device, system and storage medium for a heat pump system, which is used to realize the positioning of the corresponding electric control cabinet and abnormal position when inspecting the electric control cabinet in the heat pump system.

[0021] Terms such as "first", "second", "third", "fourth", etc. (if any) in the description and claims of this application and the above-mentioned drawings are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments described here can be implemented in an order other than that illustrated or described here. In addition, the terms "including" or "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device including a series of steps or units does not have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0022] For ease of understanding, the specific process of this application is described below. Please refer to Figure 1 An embodiment of the commodity inspection method for the heat pump system in this application includes:

[0023] 101. Determine the target operation mode and target control system based on the detection instruction.

[0024] It can be understood that the execution subject of this application can be the commodity inspection device of the heat pump system, or an independent detection device of the heat pump system, such as a detection platform corresponding to the heat pump system, and specific limitations are not made here. This embodiment is described by taking the commodity inspection device that can run multiple control systems as the execution subject as an example.

[0025] In the heat pump system of this embodiment, there are multiple control systems and multiple electric control cabinets. At least two control systems are provided in each electric control cabinet, and the commodity inspection process is triggered by a detection instruction. In practical applications, it can be triggered through the commodity inspection control on the detection interface. First, configure the detection parameters on the detection interface, and then start the commodity inspection process with one key. The heat pump system analyzes the information carried in the detection instruction, and this information includes the operation mode, control system and electronic components.

[0026] Specifically, the device type to be measured and the target electric control cabinet in the detection instruction are analyzed; the target operation mode is determined based on the device type, where the target operation mode is a refrigeration mode or a heating mode; based on the target electric control cabinet and the configuration of the control system in the target electric control cabinet, the target control system is determined.

[0027] Among them, the device type and the target electric control cabinet in the detection instruction are specifically parsed by the instruction parsing module for the input detection instruction. This module will identify the device type mentioned in the instruction, the number of the target electric control cabinet, and the identifier of the target control system. The parsed content includes the types of devices to be detected (such as "temperature sensor", "pressure sensor") and the locations of the target control system and the electric control cabinet.

[0028] Furthermore, by comparing with the information in the device database, it is confirmed whether the configurations of the electric control cabinet and the control system are correct to ensure that the selected target control system is consistent with the detection instruction.

[0029] Based on the device type, the target operation mode is determined. Specifically, the operation mode is automatically selected according to the device type. For example, if the device involved in the detection instruction is a temperature sensor, the system will select the "heating mode" or the "cooling mode"; if it involves a pressure sensor, a mode suitable for pressure detection will be selected. The required working mode is automatically selected by the controller without manual intervention, thus improving the automation level of the system.

[0030] Furthermore, for determining the target control system, it can be achieved through querying the electric control cabinet configuration. Specifically, by querying the configuration file of the electric control cabinet, it is understood which control systems are included in each electric control cabinet. According to the parsed instruction, the system will select the specified control system for detection. For example, if control system 1 and control system 2 are included in electric control cabinet 1 and the detection instruction requires detecting control system 1, the system will select control system 1 as the target for operation.

[0031] 102. Start the target control system in the electric control cabinet to operate in the target operation mode, and obtain the operation parameters of each electronic device in the electric control cabinet.

[0032] In this embodiment, the system starts the control system in the target electric control cabinet according to the detection instruction and runs it in the target operation mode. For example, if the detection instruction specifies the cooling mode, the target control system will operate in the cooling mode, starting components such as the compressor, fan, and expansion valve.

[0033] It can be understood that according to the parsed target control system and target operation mode, the system controls the execution units such as relays and switches in the electric control cabinet to start the corresponding devices. For example, in the "heating mode", the system will start devices such as the compressor, fan, and enhanced enthalpy valve and ensure that they are in normal working conditions. The system will monitor the operation status of the target control system in real time, confirm whether each device is successfully started through the PLC or RTU module, and the device status data will be transmitted back to the central control unit to ensure the successful start of the operation mode.

[0034] Further, after starting the system in the electrical control cabinet, the Real-Time Data Acquisition Unit (RTU) is used to connect to each control system in the electrical control cabinet through industrial network protocols (such as Modbus, CANbus) to collect operation data from each system. The data acquisition includes, but is not limited to, parameters such as pressure, temperature, valve opening, etc. The system extracts the corresponding operation parameters from the data transmitted by the industrial network according to the identification information of the target electronic device.

[0035] 103. Using the abnormal judgment rules corresponding to each electronic device, analyze the wiring abnormality based on the operation parameters to obtain the inspection result.

[0036] In this embodiment, according to the abnormal judgment rules of each electronic device, the system analyzes the collected parameters in real time. For example, for a pressure sensor, the system will calculate the high and low pressure difference of the control system and determine whether it meets the preset standard. Based on these analysis results, the inspection device outputs the analysis result of the wiring abnormality, displays "Pass" or "Fail", and gives a detailed fault prompt.

[0037] In this embodiment, first, by automatically selecting the target operation mode and target control system based on the detection instruction, the system can automatically adjust the working state according to different device types, reduce human intervention, avoid human errors or omissions, and improve the automation level and accuracy of the inspection. Then, it collects the operation parameters of each electronic device in real time and analyzes the wiring abnormality based on the preset abnormal judgment rules to ensure the efficiency and accuracy of the detection. The automation and real-time nature of the abnormal diagnosis greatly improve the detection efficiency and ensure that potential problems can be detected early in the production process of the product. Finally, according to the analysis result, a detailed fault report can be provided to help maintenance personnel quickly locate the problem and avoid quality problems after the product is released to the market. The inspection result not only includes the prompt of "Pass" or "Fail", but also provides the specific reason for the wiring abnormality, which is convenient for quickly locating and fixing the problem.

[0038] Such as Figure 2 , the second embodiment of the inspection method for the heat pump system in this application includes:

[0039] 201. Determine the target operation mode and target control system based on the detection instruction.

[0040] It can be understood that by receiving the input instruction from the user, the input can be made through a display, a touch screen or a remote interface (such as Wi-Fi or Bluetooth). The detection instruction should include the type of the device to be detected (such as a pressure sensor, a temperature sensor, etc.), the identification of the target electrical control cabinet (such as "Electrical Control Cabinet 1") and the identification of the target control system (such as "System 1").

[0041] After the input instruction, the system will automatically parse the content of the instruction, identify the type of device to be detected and its corresponding electrical control cabinet and control system. The parsing process is automatically completed by the program module in the controller to ensure that the execution of the instruction complies with the predetermined rules.

[0042] For example, when the detection instruction requires detecting a temperature sensor, the system will automatically select the "heating mode" or "cooling mode" for operation; if it is a pressure sensor, an appropriate operating mode will be selected. When determining the control system, the system will select the target control system (such as "System 1") in it for detection by querying the electrical control cabinet configuration table.

[0043] 202. Start the target control system in the electrical control cabinet to run in the target operating mode.

[0044] Start the target control system in the target electrical control cabinet according to the detection instruction and run it in the target operating mode. For example, if the detection instruction specifies the cooling mode, the target control system will run in the cooling mode and start components such as the compressor, fan, and expansion valve.

[0045] 203. Based on the target operating mode, screen the electronic devices in the electrical control cabinet and extract the target electronic devices to be inspected by commodity inspection.

[0046] This step can be understood as two steps. First is the screening and filtering of electronic devices: After the target control system runs, the system screens all the electronic devices to be detected in the electrical control cabinet according to the target device type (such as pressure sensor, temperature sensor, etc.). For example, if the instruction requires detecting a pressure sensor, the system will automatically screen all the pressure sensors in the electrical control cabinet for testing.

[0047] Finally is the device data extraction: According to the identification information of the identified electronic devices, the corresponding operating parameters are extracted from the real-time data. For example, the pressure value is obtained from the pressure sensor, and the exhaust temperature and suction temperature are obtained from the temperature sensor.

[0048] 204. Use the real-time data acquisition unit to collect system operation data from the industrial network of each control system.

[0049] It should be noted that this industrial network is a virtual data transmission network constructed based on industrial network protocols, such as Modbus, CANbus, etc.

[0050] In this embodiment, the real-time data acquisition unit (RTU) obtains data from the industrial network of each control system. The RTU is connected to the control system through a hardware interface that supports industrial protocols (such as Modbus RTU or TCP, CANbus) and collects data once per second.

[0051] Transmitted to the central monitoring system through industrial protocols to ensure that the operating parameters of each electronic device can be collected in a timely and accurate manner.

[0052] 205. Based on the identification information of each target electronic device, extract the corresponding operating parameters from the system operation data.

[0053] It should be noted that the operating parameters include at least one of pressure, exhaust temperature, suction temperature, electronic expansion valve status, and four-way valve status.

[0054] In this embodiment, using the identification information of the target electronic device (such as serial number or device ID), extract the operating parameters of the device from the received system data. Among them, the collected parameters include pressure value, exhaust temperature, suction temperature, etc., and then they will be processed in real time by the analysis module and transmitted to the abnormality judgment module.

[0055] 206. Utilize the abnormality judgment rules corresponding to each electronic device to analyze wiring abnormalities based on the operating parameters and obtain the inspection results.

[0056] It can be understood that the abnormality judgment rules refer to multiple abnormality judgment rules preset in the system for different types of electronic devices. For example, for a pressure sensor, it is set that "the difference between high pressure and low pressure > 3 bar" is abnormal; for a temperature sensor, if the difference between the exhaust temperature and the suction temperature is greater than the set threshold, it is abnormal.

[0057] The system will compare and analyze the collected real-time data with the preset abnormality rules. If the data exceeds the threshold, the system will, according to the judgment rules, analyze whether there is a wiring abnormality and give a fault feedback.

[0058] The system will display the analysis result on the operation interface and give corresponding fault prompts according to the type of wiring abnormality. If no abnormality is detected, it will display "Pass", otherwise it will display "Fail" and provide the fault details.

[0059] In this embodiment, when the target electronic device is a pressure sensor, the specific analysis process is as follows:

[0060] Based on the abnormality judgment rule of pressure, calculate the first pressure difference between high and low pressures under the target control system and the second pressure difference between high and low pressures of other control systems in the electrical control cabinet where the target control system is located; judge whether the first pressure difference and the second pressure difference meet the corresponding pressure conditions; if not, determine that there is an abnormality in the high and low pressure wiring of the target control system itself or there is an abnormality in the high and low pressure wiring between the target control system and other control systems in the same electrical control cabinet.

[0061] It should be noted that, based on the high and low pressure data under the target control system, a difference calculation is performed to obtain the first pressure difference; at the same time, a difference calculation is also performed based on the high and low pressure data of other control systems in the electrical control cabinet where the target control system is located to obtain the second pressure difference.

[0062] Then, the calculated first pressure difference and second pressure difference are compared with a preset pressure standard. If the difference exceeds the preset range, it is considered that there is an abnormality in the wiring of the pressure sensor of the target control system itself, or there is an abnormality in the high and low pressure wiring between the target control system and other control systems. Note that here the target control system and other control systems are different control systems under the same electrical control cabinet.

[0063] If the judgment condition is not met, the system outputs "Check for abnormal wiring" and displays the specific fault information; otherwise, it displays "Pass".

[0064] In actual control, the pressure detection is achieved by controlling the operation of the compressor. Taking the heat pump system of 4 systems as an example for illustration, and the same applies to various subsequent electronic devices. The following logic is based on the premise of variable frequency heat pumps and dual electrical control cabinet control of four control systems, that is, the electronic wires of system 1 and system 2 are in the same electrical control cabinet, and the electronic wires of system 3 and system 4 are in the same electrical control cabinet. Therefore, wiring errors can only occur between system 1 and system 2, or between system 3 and system 4. Based on this, when detecting whether the pressure sensor is abnormal, it specifically includes:

[0065] First, run the heating mode (it can also be the heating mode), separately turn on system 1 and system 3, and keep the compressor frequency, fan speed, valve opening, etc. the same; then, after the compressor runs for 180 s, detect whether the corresponding system satisfies "high pressure - low pressure > 3 bar" and the other system in the same air chamber satisfies "|high pressure - low pressure| < 1 bar"; finally, if system 1 does not meet the requirements, report "Check whether the pressure sensors of system 1 and system 2 are wrongly connected". At this time, it may be that the high and low pressure sensors of system 1 are reversed, or it may be that the connection between system 1 and system 2 is reversed; if system 3 does not meet the requirements, report "Check whether the pressure sensors of system 3 and system 4 are wrongly connected". At this time, it may be that the high and low pressure sensors of system 3 are reversed, or it may be that the connection between system 3 and system 4 is reversed; when the detection result meets the requirements, the line controller shows "Pass" for this test; otherwise, it shows "Fail". The detection of system 2 and system 4 is the same, and will not be repeated here.

[0066] In another feasible implementation manner, when the target electronic device is a gas processing sensor, the specific analysis process is:

[0067] Based on the abnormal judgment rule for gas treatment, calculate the gas temperature difference value between adjacent detection points under the target control system; determine whether the gas temperature difference value meets the corresponding exhaust temperature condition; if not, it is determined that there is an abnormality in the gas treatment wiring between the target control system and other control systems in the same electrical control cabinet.

[0068] It should be noted that the gas treatment sensor includes an exhaust gas sensor and a return gas sensor. The abnormal judgment rule for gas treatment includes the abnormal judgment rule for exhaust gas and the abnormal judgment rule for return gas. The exhaust temperature condition includes an exhaust gas temperature difference threshold and a return gas temperature difference threshold.

[0069] For detecting whether the exhaust gas temperature sensor is abnormal, it includes: calculating whether the difference between the exhaust gas temperatures at two time points with a certain time interval between two exhausts after the compressor runs is greater than the exhaust gas temperature difference threshold. The specific implementation is as follows:

[0070] First, run the heating mode, separately turn on System 1 and System 3, and keep the compressor frequency, fan speed, valve opening, etc. consistent; then, when the compressor runs, detect whether the corresponding system is "exhaust gas at 150s after compressor runs - exhaust gas at 30s after compressor runs > 5°C";

[0071] Finally, if System 1 does not meet the requirements, report "Check whether the exhaust gas sensors of System 1 and System 2 are connected wrongly"; if System 3 does not meet the requirements, report "Check whether the exhaust gas sensors of System 3 and System 4 are connected wrongly"; when the detection result meets the requirements, the line controller shows "Pass" for this test; otherwise, it shows "Fail".

[0072] For detecting whether the return gas temperature sensor is abnormal, it includes: calculating whether the difference between the return gas temperatures at two time points with a certain time interval between two exhausts after the compressor runs is greater than the return gas temperature difference threshold. The specific implementation is as follows:

[0073] First, run the heating mode, separately turn on System 1 and System 3, and keep the compressor frequency, fan speed, valve opening, etc. consistent; then, when the compressor runs, detect whether the corresponding system is "return gas at 150s after compressor runs - return gas at 30s after compressor runs < 3°C"; finally, if System 1 does not meet the requirements, report "Check whether the return gas sensors of System 1 and System 2 are connected wrongly"; if System 3 does not meet the requirements, report "Check whether the return gas sensors of System 3 and System 4 are connected wrongly"; when the detection result meets the requirements, the line controller shows "Pass" for this test; otherwise, it shows "Fail".

[0074] It should be noted that for other temperatures such as antifreeze temperature and coil temperature, since they are on the same pair of plugs as the return gas temperature, when the return gas temperature wiring is normal, other temperatures are also normal, so there is no need to judge repeatedly.

[0075] In another feasible implementation, when the target electronic device is an expansion valve, the analysis process includes:

[0076] Based on the abnormal judgment rule of the valve, calculate the return air temperature difference and the exhaust air temperature difference under the target control system in different electrical control cabinets; determine whether the return air temperature difference and the exhaust air temperature difference simultaneously meet the corresponding temperature control conditions; if not, it is determined that there is an abnormality in the temperature control wiring of the expansion valve between the two target control systems.

[0077] Here, the heating mode is taken as an example of the target operation mode. Of course, the cooling mode can also be adopted. Specifically, first, run the heating mode, separately turn on System 1 and System 3, and keep the compressor frequency, fan speed, valve opening, etc. consistent; then, after the compressor runs for 180 s, detect whether "|System 1 exhaust - System 3 exhaust| < 3°C" and "|System 1 return air - System 3 return air| < 3°C"; after the compressor runs for 180 s, when the economizer expansion valve is opened, detect whether "|System 1 economizer inlet - System 3 economizer inlet| < 3°C" and "|System 1 economizer outlet - System 3 economizer outlet| < 3°C"; if the requirements are not met, report "Check whether the electronic expansion valve is wrongly connected"; when the test results meet the requirements, the line controller shows "Pass" for this test item; otherwise, it shows "Fail".

[0078] In another feasible implementation, in addition to using the heating mode to identify abnormalities in each electronic device in the heat pump system, the cooling mode can also be used. Since there are some electronic devices that only work in the heating or cooling mode, such as the four-way valve, which only works in the cooling mode, the abnormal detection is completed based on the cooling mode.

[0079] When the target operation mode is the cooling mode, the analysis process includes: based on the abnormal judgment rule of the four-way valve, calculate the cooling temperature difference value between the exhaust air temperature and the antifreeze circuit temperature under the target control system; determine whether the cooling temperature difference value meets the corresponding cooling conditions; if not, it is determined that there is an abnormality in the wiring of the four-way valve of the target control system itself.

[0080] Specifically, first, run the cooling mode (because the four-way valve switching action is involved in the cooling mode), separately turn on System 1 and System 3, and keep the compressor frequency, fan speed, valve opening, etc. consistent; then, the compressor runs for 120 s, and detect "System 1 exhaust - System 1 refrigerant circuit antifreeze > 20°C"; if System 1 does not meet the requirements, report "Check whether the four-way valves of System 1 and 2 are wrongly connected"; if System 3 does not meet the requirements, report "Check whether the four-way valves of System 3 and 4 are wrongly connected"; when the test results meet the requirements, the line controller shows "Pass" for this test item; otherwise, it shows "Fail".

[0081] In this application, a target operation mode and a target control system are determined based on a detection instruction; the target control system in the electric control cabinet is started to operate in the target operation mode, and the operation parameters of each electronic device in the electric control cabinet are obtained; using the abnormal judgment rules corresponding to each electronic device, wiring abnormalities are analyzed based on the operation parameters to obtain a commodity inspection result. This reduces manual intervention and improves the automation level of the commodity inspection process.

[0082] Based on the data of different sensors and combined with the corresponding abnormal judgment rules to determine whether there are abnormalities, not only can problems with pressure sensors be detected, but also wiring problems with gas treatment, expansion valves, and four-way valves can be comprehensively detected to ensure that no omissions occur in the commodity inspection process. Through the judgment of temperature difference and temperature control conditions, the system can quickly locate the fault source and help engineers quickly repair the problem.

[0083] The above described the commodity inspection method for the heat pump system in this application. Next, the commodity inspection device for the heat pump system in this application will be described. Please refer to Figure 3 , an embodiment of the commodity inspection device for the heat pump system in this application, the heat pump system includes at least one electric control cabinet, and at least two control systems are provided in each electric control cabinet; the device includes:

[0084] A determination module 310, configured to determine a target operation mode and a target control system based on a detection instruction;

[0085] An acquisition module 320, configured to start the target control system in the electric control cabinet to operate in the target operation mode, and acquire the operation parameters of each electronic device in the electric control cabinet;

[0086] An analysis module 330, configured to use the abnormal judgment rules corresponding to each electronic device to analyze wiring abnormalities based on the operation parameters to obtain a commodity inspection result.

[0087] In this embodiment, by separately controlling the operation of one control system in each electric control cabinet to obtain the operation parameters of each electronic device for analyzing wiring abnormalities, since it is a separate control of each electric control cabinet, when an abnormality is detected each time, it is possible to clearly know the location of the abnormality.

[0088] Please refer to Figure 4 , another embodiment of the multi-heat pump linkage control device in this application includes:

[0089] A determination module 310, configured to determine a target operation mode and a target control system based on a detection instruction;

[0090] An acquisition module 320, configured to start the target control system in the electric control cabinet to operate in the target operation mode, and acquire the operation parameters of each electronic device in the electric control cabinet;

[0091] An analysis module 330 is configured to analyze wiring anomalies based on the operating parameters by using the anomaly determination rules corresponding to each of the electronic devices, and obtain the commodity inspection result.

[0092] Optionally, the determination module 310 includes:

[0093] A parsing unit 311, configured to parse the device type to be measured and the target electric control cabinet in the detection instruction;

[0094] A determination unit 312, configured to determine a target operating mode based on the device type, where the target operating mode is a refrigeration mode or a heating mode;

[0095] A configuration unit 313, configured to determine a target control system based on the target electric control cabinet and the configuration of the control system in the target electric control cabinet.

[0096] Optionally, the obtaining module 320 is specifically configured to:

[0097] Based on the target operating mode, screen the electronic devices in the electric control cabinet, and extract the target electronic devices to be subject to commodity inspection;

[0098] Use a real-time data acquisition unit to collect system operating data from the industrial networks of each of the control systems, where the industrial network is a virtual data transmission network constructed based on an industrial network protocol;

[0099] Based on the identification information of each of the target electronic devices, extract the corresponding operating parameters from the system operating data, where the operating parameters include at least one of pressure, exhaust temperature, suction temperature, electronic expansion valve state, and four-way valve state.

[0100] Optionally, the analysis module 330 includes: a first detection unit 331, configured to:

[0101] When the target electronic device is a pressure sensor, calculate a first pressure difference between the high and low pressures under the target control system and a second pressure difference between the high and low pressures of other control systems in the electric control cabinet where the target control system is located based on the anomaly determination rule of pressure;

[0102] Determine whether the first pressure difference and the second pressure difference satisfy the corresponding pressure conditions;

[0103] If not, determine that there is an anomaly in the high and low pressure wiring of the target control system itself or there is an anomaly in the high and low pressure wiring between the target control system and other control systems in the same electric control cabinet.

[0104] Optionally, the analysis module 330 includes: a second detection unit 332, configured to:

[0105] When the target electronic device is a gas processing sensor, calculate the gas temperature difference value within the target time period under the target control system based on the abnormal judgment rule for gas processing;

[0106] Determine whether the gas temperature difference value meets the corresponding exhaust temperature condition;

[0107] If not, it is determined that there is an abnormality in the gas processing wiring between the target control system and other control systems in the same electrical control cabinet.

[0108] Optionally, the analysis module 330 includes: a third detection unit 333, used for:

[0109] When the target electronic device is an expansion valve, calculate the return air temperature difference value and the exhaust air temperature difference value under the target control system in different electrical control cabinets based on the abnormal judgment rule of the valve;

[0110] Determine whether the return air temperature difference value and the exhaust air temperature difference value simultaneously meet the corresponding temperature control conditions;

[0111] If not, it is determined that there is an abnormality in the temperature control wiring of the expansion valve between the two target control systems.

[0112] Optionally, the analysis module 330 includes: a fourth detection unit 334, used for:

[0113] When the target operation mode is the refrigeration mode, calculate the refrigeration temperature difference value between the exhaust air temperature and the anti-freezing circuit temperature under the target control system based on the abnormal judgment rule of the four-way valve;

[0114] Determine whether the refrigeration temperature difference value meets the corresponding cooling condition;

[0115] If not, it is determined that there is an abnormality in the wiring of the four-way valve of the target control system itself.

[0116] In this embodiment, by automatically selecting the target operation mode and the target control system based on the detection instruction, the system can automatically adjust the working state according to different device types, reduce human intervention, avoid human errors or omissions, and improve the automation level and accuracy of commodity inspection. The operation parameters of each electronic device are collected in real time, and the wiring abnormality is analyzed based on the preset abnormal judgment rule to ensure the efficiency and accuracy of the detection. The automation and real-time nature of the abnormal diagnosis greatly improve the detection efficiency and ensure that potential problems can be detected early in the production process of the product. Finally, according to the analysis result, a detailed fault report can be provided to help maintenance personnel quickly locate the problem and avoid quality problems after the product flows into the market.

[0117] Above Figure 3 and Figure 4The commodity inspection device of the heat pump system in this application is described in detail from the perspective of modular functional entities. Next, the heat pump system in this application is described in detail from the perspective of hardware processing.

[0118] Refer to Figure 5 As shown, the heat pump system includes a processor 500 and a memory 501. The memory 501 stores machine-executable instructions that can be executed by the processor 500. The processor 500 executes the machine-executable instructions to implement the commodity inspection method of the above heat pump system.

[0119] Furthermore, Figure 5 The heat pump system shown also includes a bus 502 and a communication interface 503. The processor 500, the communication interface 503, and the memory 501 are connected through the bus 502.

[0120] Among them, the memory 501 may include a high-speed random access memory (Random Access Memory, RAM), and may also include non-volatile memory, for example, at least one disk memory. Through at least one communication interface 503 (which can be wired or wireless), a communication connection is realized between this system network element and at least one other network element. The Internet, wide area network, local area network, metropolitan area network, etc. can be used. The bus 502 can be an ISA bus, a PCI bus, an EISA bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. For the convenience of representation, Figure 5 only a two-way arrow is used in

[0121] The processor 500 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the integrated logic circuit of the hardware in the processor 500 or the instructions in the form of software. The above-mentioned processor 500 may be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it may also be a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components. It can implement or execute each method, step and logic block diagram disclosed in the embodiments of the present disclosure. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc. The steps of the method disclosed in combination with the embodiments of the present disclosure can be directly embodied as being executed and completed by the hardware decoding processor, or executed and completed by a combination of the hardware and software modules in the decoding processor. The software module may be located in a mature storage medium in the art such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory, or an electrically erasable programmable memory, a register, etc. This storage medium is located in the memory 501, and the processor 500 reads the information in the memory 501 and combines its hardware to complete the method steps of the foregoing embodiments.

[0122] This application also provides a computer-readable storage medium. The computer-readable storage medium may be a non-volatile computer-readable storage medium, or the computer-readable storage medium may also be a volatile computer-readable storage medium. Instructions are stored in the computer-readable storage medium. When the instructions run on the computer, the computer is caused to execute the steps of the commodity inspection method of the heat pump system.

[0123] 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 foregoing method embodiments and will not be described herein again.

[0124] When the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of this technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of this application. The foregoing storage medium includes: various media that can store program codes, such as USB flash drives, mobile hard disks, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical discs.

[0125] As described above, the above embodiments are only used to illustrate the technical solution of this application and are not intended to limit it; although this application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of various embodiments of this application.

Claims

1. A commercial inspection method for a heat pump system, characterized in that: The heat pump system comprises at least one electric control cabinet, each of which is provided with at least two control systems; the method comprises: Determine a target operation mode and a target control system based on the detection instructions; Starting the target control system in the electric control cabinet to operate in the target operation mode, and obtaining the operation parameters of each electronic device in the electric control cabinet; By utilizing the abnormality judgment rules corresponding to each of the electronic components and based on the operating parameters, the wiring abnormality is analyzed to obtain the commercial inspection result.

2. The commercial inspection method for a heat pump system according to claim 1, characterized in that: The method of determining a target operation mode and a target control system based on the detection instruction includes: Parsing the device type to be tested and the target electric control cabinet in the detection instruction; determining a target operating mode based on the device type, wherein the target operating mode is a cooling mode or a heating mode; Based on the target electric control cabinet and the configuration of the control system in the target electric control cabinet, a target control system is determined.

3. The commercial inspection method for a heat pump system according to claim 1, characterized in that: The obtaining of operating parameters of each electronic device in the electric control cabinet includes: Based on the target operation mode, the electronic components in the electric control cabinet are screened to extract the target electronic components to be inspected; Using a real-time data acquisition unit, collecting system operation data from the industrial network of each control system, wherein the industrial network is a virtual data transmission network constructed based on an industrial network protocol; Based on the identification information of each of the target electronic components, corresponding operating parameters are extracted from the system operating data, and the operating parameters include at least one of pressure, exhaust temperature, return air temperature, electronic expansion valve state and four-way valve state.

4. The commercial inspection method for a heat pump system according to claim 3, characterized in that: The method of using the abnormality judgment rules corresponding to each of the electronic components to analyze the wiring abnormality based on the operating parameters to obtain the commercial inspection result includes: If the target electronic device is a pressure sensor, based on the pressure abnormality judgment rule, calculate the first pressure difference between the high and low pressures under the target control system and the second pressure difference between the high and low pressures of other control systems in the electric control cabinet where the target control system is located; Determining whether the first pressure difference and the second pressure difference meet corresponding pressure conditions; If not, it is determined that an abnormality exists in the high and low voltage wiring of the target control system itself or in the high and low voltage wiring between the target control system and other control systems in the same electric control cabinet.

5. The commercial inspection method for a heat pump system according to claim 3, characterized in that: The method of using the abnormality judgment rules corresponding to each of the electronic components to analyze the wiring abnormality based on the operating parameters to obtain the commercial inspection result includes: If the target electronic device is a gas processing sensor, based on the abnormality judgment rule of gas processing, the gas temperature difference value within the target time period under the target control system is calculated; Determine whether the gas temperature difference meets the corresponding exhaust temperature condition; If not, it is determined that there is an abnormality in the gas processing wiring between the target control system and other control systems in the same electric control cabinet.

6. The commercial inspection method for a heat pump system according to claim 3, characterized in that: The method of using the abnormality judgment rules corresponding to each of the electronic components to analyze the wiring abnormality based on the operating parameters to obtain the commercial inspection result includes: If the target electronic device is an expansion valve, based on the valve abnormality judgment rule, the return air temperature difference and the exhaust air temperature difference under the target control system in different electric control cabinets are calculated; Determining whether the return air temperature difference and the exhaust air temperature difference simultaneously meet corresponding temperature control conditions; If not, it is determined that there is an abnormality in the temperature control wiring of the expansion valve between the two target control systems.

7. The commercial inspection method for a heat pump system according to claim 3, characterized in that: The method of using the abnormality judgment rules corresponding to each of the electronic components to analyze the wiring abnormality based on the operating parameters to obtain the commercial inspection result includes: If the target operation mode is the cooling mode, based on the abnormality judgment rule of the four-way valve, the cooling temperature difference between the exhaust temperature and the antifreeze circuit temperature under the target control system is calculated; Determining whether the refrigeration temperature difference meets the corresponding cooling condition; If not, it is determined that there is an abnormality in the wiring of the four-way valve of the target control system itself.

8. A commercial inspection device for a heat pump system, characterized in that: The heat pump system includes at least one electric control cabinet, each of which is provided with at least two control systems; the device includes: A determination module, used to determine a target operation mode and a target control system based on the detection instruction; An acquisition module, used to start the target control system in the electric control cabinet to operate in the target operation mode, and to acquire the operation parameters of each electronic device in the electric control cabinet; The analysis module is used to analyze the wiring abnormality based on the operating parameters by using the abnormality judgment rules corresponding to each of the electronic components to obtain the commercial inspection results.

9. A heat pump system, characterized in that: The heat pump system comprises at least one electric control cabinet, a memory and at least one processor, wherein the memory stores instructions; each of the electric control cabinets is provided with at least two control systems; The at least one processor calls the instructions in the memory to enable the heat pump system to execute the commercial inspection method for the heat pump system according to any one of claims 1 to 7.

10. A computer-readable storage medium having instructions stored thereon, characterized in that: When the instructions are read and executed, the commercial inspection method for the heat pump system according to any one of claims 1 to 7 is executed.

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