Sensor failure control method, device, electronic equipment and storage box

Abstract

The present invention discloses a sensor failure control method, device, electronic device, and preservation box. The method includes: obtaining first temperature information detected by a first sensor component and second temperature information detected by a second sensor component; determining temperature correlation information between the first sensor component and the second sensor component based on the first temperature information and the second temperature information; determining alternative temperature information for the second sensor component based on the first temperature information and the temperature correlation information in the event of a failure of the second sensor component; and controlling the operating mode of the compressor based on the alternative temperature information. The temperature correlation information is determined before a failure occurs during the stable operation phase of the preservation box, and the temperature replacement value is determined after a component failure occurs during the stable operation phase. This allows the preservation box's operating mode to match the system load, improves the preservation box's stability after a component failure, and ensures the quality of samples within the preservation box.

Description

Technical Field

[0001] The present invention relates to the field of refrigeration technology, and in particular to a sensor failure control method, device, electronic equipment and a preservation box. Background Art

[0002] After a set temperature is manually entered, the refrigeration equipment transmits the actual internal temperature to the main control board via an internal temperature sensor. Based on this temperature feedback, the main control board controls the compressor's on / off and operating frequency, achieving precise regulation of the internal temperature. In existing refrigeration equipment, such as a freezer, if the temperature sensor inside the freezer fails, the temperature control panel displays a fault code and the compressor operates according to factory settings. However, the compressor's temporary operating strategy under these conditions does not properly match the system load, resulting in problems with the reliable storage of samples within the equipment.

[0003] In the prior art, preservation boxes often use a cascade refrigeration system. The refrigeration system achieves normal cooling and rapid warming of the compartments by rationally adjusting the frequency of the high and low temperature compressors. However, when a sensor component in the preservation box fails, it affects the reliable operation of the preservation box. At the same time, the probability of a sensor component failure occurring in the warming stage is much lower than that in the stable operation stage. Therefore, focusing on solutions to sensor component failures in the stable operation stage of the preservation box can very effectively solve the problem in the prior art mentioned above that when a sensor component in the preservation box fails, the compressor operates according to the factory settings, resulting in a poor match between the operating mode and the system load, and the samples in the equipment cannot be reliably preserved. Summary of the Invention

[0004] In view of the above-mentioned deficiencies in the prior art, the object of the present invention is to provide a sensor fault control method, device, electronic equipment and preservation box, aiming to solve the problem in the prior art that when a sensor in the preservation box fails, the compressor operates according to the factory settings, resulting in poor matching between the operating mode and the system load, and the samples in the equipment cannot be reliably preserved.

[0005] The technical solutions of the present invention are as follows:

[0006] In a first aspect, the present invention provides a sensor failure control method, wherein the method comprises:

[0007] Acquiring first temperature information detected by a first sensor assembly and second temperature information detected by a second sensor assembly, wherein the first sensor assembly and the second sensor assembly are disposed in different areas of the refrigeration equipment, wherein the second sensor assembly includes a temperature sensor of the preservation box;

[0008] determining temperature association information between the first sensor component and the second sensor component according to the first temperature information and the second temperature information;

[0009] in the event that the second sensor assembly fails, determining alternative temperature information of the second sensor assembly based on the first temperature information and the temperature association information;

[0010] The operation mode of the compressor is controlled according to the alternative temperature information.

[0011] In one embodiment, obtaining first temperature information detected by the first sensor component includes:

[0012] acquiring a first temperature detected by a first sensor, where the first sensor is disposed on the intermediate heat exchanger;

[0013] acquiring a second temperature detected by a second sensor, where the second sensor is disposed on the condenser;

[0014] acquiring a third temperature detected by a third sensor, where the third sensor is disposed on the low-temperature compressor;

[0015] The acquiring the second temperature information detected by the second sensor component includes:

[0016] Obtain the first area temperature detected by the first area sensor and the second area temperature detected by the second area sensor; wherein the first area sensor is set on the condensing fan and the second area sensor is set in the box; or the first area sensor is set in the box and the second area sensor is set on the condensing fan.

[0017] In one embodiment, the second sensor assembly includes a first area sensor and a second area sensor, the second temperature information includes a first area temperature corresponding to the first area sensor and a second area temperature corresponding to the second area sensor, and the temperature association information includes a first area association data group and a second area association data group;

[0018] The determining, based on the first temperature information and the second temperature information, temperature association information between the first sensor component and the second sensor component includes:

[0019] At every preset time interval, the first region associated data group is determined according to the first temperature information and the first region temperature, and the second region associated data group is determined according to the first temperature information and the second region temperature.

[0020] In one embodiment, the first temperature information includes a first temperature corresponding to the first sensor, a second temperature corresponding to the second sensor, and a third temperature corresponding to the third sensor;

[0021] The first region-associated data group includes the first data, the second data, and the third data;

[0022] The determining the first region-associated data group according to the first temperature information and the first region temperature includes:

[0023] Calculating the difference between the first temperature and the temperature of the first area to obtain the first data; calculating the difference between the second temperature and the temperature of the first area to obtain the second data;

[0024] The difference between the third temperature and the first region temperature is calculated to obtain the third data.

[0025] The first data, the second data, and the third data are determined as information between the first area sensor and the first sensor component, and the first data, the second data, and the third data are stored.

[0026] In one embodiment, the alternative temperature information includes a first region alternative temperature and a second region alternative temperature;

[0027] The determining, in the event that the second sensor component fails, the alternative temperature information corresponding to the second sensor component according to the first temperature information and the temperature association information includes:

[0028] When the first zone temperature sensor fails, calculating the sum of the second temperature and the second data, and using the sum of the second temperature and the second data as the first zone alternative temperature; and / or

[0029] When the second-region temperature sensor fails, a sum of the first temperature and the second data is calculated, and the sum of the first temperature and the second data is used as the second-region replacement temperature.

[0030] In one embodiment, the alternative temperature information includes a first region alternative temperature and a second region alternative temperature;

[0031] The determining, in the event that the second sensor component fails, the alternative temperature information corresponding to the second sensor component according to the first temperature information and the temperature association information includes:

[0032] Calculating a sum of the first temperature and the first data, a sum of the second temperature and the second data, and a sum of the third temperature and the third data, taking an average of the sum of the first temperature and the first data, the sum of the second temperature and the second data, and the sum of the third temperature and the third data, and using the average as the replacement temperature for the first region; and / or

[0033] Calculate the sum of the first temperature and the first data, the sum of the second temperature and the second data, and the sum of the third temperature and the third data, and take the average value of the sum of the first temperature and the first data, the sum of the second temperature and the second data, and the sum of the third temperature and the third data, and use the average value as the replacement temperature for the second area.

[0034] In one embodiment, the first region association data group is a first region association function group; the alternative temperature information includes a first region alternative temperature;

[0035] The determining the first region-associated data group according to the first temperature information and the first region temperature includes:

[0036] constructing the first region correlation function group according to the first temperature, the second temperature, the third temperature and the first region temperature at different times;

[0037] The determining, in the event that the second sensor component fails, the alternative temperature information corresponding to the second sensor component according to the first temperature information and the temperature association information includes:

[0038] When the first zone sensor fails, a first zone replacement temperature corresponding to the first zone sensor is determined according to the first zone correlation function group and the first temperature, the second temperature, and the third temperature.

[0039] In one embodiment, the second sensor assembly includes a pressure sensor connected to the low-temperature compressor; the first region-related data group is pressure-temperature related data;

[0040] The determining the first region-associated data group according to the first temperature information and the first region temperature includes:

[0041] determining the pressure-temperature correlation data according to the pressure sensor and the first region temperature;

[0042] The determining, in the event that the second sensor component fails, the alternative temperature information corresponding to the second sensor component according to the first temperature information and the temperature association information includes:

[0043] When the first zone sensor fails, a first zone alternative temperature corresponding to the first zone sensor is determined according to the pressure-temperature correlation data and the first temperature, the second temperature, and the third temperature.

[0044] In one embodiment, the first area sensor is an ambient temperature sensor, and the second area sensor is an in-box temperature sensor.

[0045] In one embodiment, controlling the start and stop of the high-temperature compressor and the low-temperature compressor according to the alternative temperature information includes:

[0046] When the first zone temperature sensor fails, determining the frequency increase or decrease mode corresponding to the high-temperature compressor and the low-temperature compressor according to the first zone alternative temperature;

[0047] The high-temperature compressor and the low-temperature compressor are started according to their respective corresponding frequency increase and decrease modes, so that the operating state of the preservation box meets the set requirements.

[0048] In a second aspect, the present invention provides a storage box control device, comprising:

[0049] a detection module, configured to obtain first temperature information of the first sensor component and second temperature information of the second sensor component;

[0050] a determining module, configured to determine temperature association information between the first sensor component and the second sensor component based on the first temperature information and the second temperature information;

[0051] a calculation module, configured to determine, in the event that the second sensor component fails, alternative temperature information corresponding to the second sensor component based on the first temperature information and the temperature association information;

[0052] A control module is used to control the start and stop of the high-temperature compressor and the low-temperature compressor according to the alternative temperature information.

[0053] In a third aspect, the present invention provides an electronic device, comprising:

[0054] at least one processor, and at least one memory communicatively coupled to the processor;

[0055] The memory stores computer-executable instructions;

[0056] The processor executes the computer-executable instructions stored in the memory to implement the method as described in any one of the above solutions.

[0057] In a fourth aspect, the present invention provides a storage box comprising the electronic device as described above.

[0058] Beneficial effects: The present invention provides a sensor fault control method, device, electronic device, and preservation box. The method includes: obtaining first temperature information of a first sensor component and second temperature information of a second sensor component; determining temperature correlation information between the first sensor component and the second sensor component based on the first temperature information and the second temperature information; in the event of a failure of the second sensor component, determining alternative temperature information corresponding to the second sensor component based on the first temperature information and the temperature correlation information; and controlling the start and stop of the high-temperature compressor and the low-temperature compressor based on the alternative temperature information. The temperature correlation information is determined before a failure occurs in the stable operation phase of the preservation box, and a temperature replacement value is obtained after a device fails in the stable operation phase of the preservation box, so that the preservation box can start and stop the high and low temperature compressors according to the temperature replacement value, thereby matching the operation mode of the preservation box with the system load, improving the stability of the preservation box after a temperature sensor failure in the stable operation phase, and thereby ensuring the quality of the samples stored in the preservation box. BRIEF DESCRIPTION OF THE DRAWINGS

[0059] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0060] Figure 1 A flow chart of the sensor failure control method of the present invention;

[0061] Figure 2 It is a structural schematic diagram of the storage box of the present invention;

[0062] Figure 3 is another flow chart of the sensor failure control method of the present invention;

[0063] Figure 4 Schematic diagram of the structure of the storage box control device of the present invention;

[0064] Figure 5 Schematic diagram of an electronic device of the present invention.

[0065] Description of reference numerals:

[0066] The above drawings illustrate specific embodiments of the present invention, which will be described in more detail below. These drawings and the accompanying description are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by reference to specific embodiments. DETAILED DESCRIPTION

[0067] To make the purpose, technical solutions, and effects of the present invention clearer and more specific, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0068] The terms "first", "second", "third", "fourth", etc. (if any) in the description and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the invention described herein can, for example, be implemented in orders other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or apparatus that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or apparatus.

[0069] In the related art, if a temperature sensor fails in refrigeration equipment in the existing industry, the temperature control panel will display a fault code, and the compressor will operate according to the factory settings. However, there is a problem that the operating mode does not match the system load, and the samples in the equipment cannot be reliably preserved. Preservation boxes often use a cascade refrigeration system, which achieves normal cooling and rapid temperature increase in the compartment by reasonably adjusting the frequency of the high and low temperature compressors. When a device fails, it affects the reliable operation of the preservation box. At the same time, the probability of a device failure occurring in the temperature increase stage is much lower than in the stable operation stage. Therefore, it is necessary to propose a mode for the preservation box to still operate reliably when the temperature sensor fails during the stable operation stage.

[0070] The sensor failure control method provided by the present invention is aimed at when a temperature sensor of a low-temperature preservation box fails during the stable operation stage. When a key ambient temperature sensor (i.e., the first area sensor) or the temperature sensor inside the box (i.e., the second area sensor) fails, the value of the faulty sensor is equivalently converted based on the detection value of other normal temperature sensors (first sensor assembly), thereby ensuring the reliable operation of the refrigeration system.

[0071] In order to solve the above problems, the inventors, after expending creative efforts, obtained the following technical concepts:

[0072] The sensor fault control method of the present invention is applied to a preservation box. When no fault occurs in the stable operation stage of the preservation box, the temperature information of the first sensor component and the second sensor component is detected, and temperature correlation information is obtained based on the temperature information of the two groups of sensors. Therefore, when at least one of the sensors in the stable operation stage of the preservation box fails, a temperature replacement value that can be detected by the failed sensor is obtained through the temperature correlation information and the sensor that has not failed, so that the preservation box can start and stop the high and low temperature compressors according to the temperature information including the temperature replacement value, thereby matching the operation mode of the preservation box with the system load, improving the stability of the preservation box after the temperature sensor fails in the stable operation stage, and thus ensuring the quality of the samples stored in the preservation box.

[0073] The following specific embodiments are used to describe the technical solution of the present invention in detail. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0074] The present invention provides a preservation box, which has a cascade refrigeration system. The refrigeration system includes a high-temperature compressor and a low-temperature compressor. Heat is exchanged between the high and low temperature stages through an evaporative condenser. The preservation box also includes a first sensor component and a second sensor component.

[0075] In one implementation, the second sensor assembly includes a first area sensor and a second area sensor.

[0076] It should be noted that the high-temperature compressor, condenser, filter, high-temperature capillary tube, intermediate heat exchanger, and gas-liquid separator are connected in sequence; the low-temperature compressor, oil separator, filter, pressure switch, intermediate heat exchanger, low-temperature capillary tube, and evaporator are connected in sequence.

[0077] Specifically, the first area sensor is an ambient temperature sensor, which is arranged at the air inlet of the condensing fan and is used to detect the temperature of the external environment of the preservation box, that is, the first area temperature (that is, the ambient temperature Ta); the second area sensor is an internal temperature sensor, which is arranged at the back of the box and is used to detect the temperature of the internal environment of the preservation box, that is, the second area temperature (that is, the internal temperature Tx).

[0078] In one implementation, in order to monitor the system operating status and subsequent maintenance, the first sensor assembly includes a first sensor (i.e., an intermediate heat exchanger temperature sensor), a second sensor (i.e., a condensing temperature sensor), and a third sensor (i.e., an exhaust temperature sensor); the first sensor is connected to the intermediate heat exchanger of the preservation box, and is used to collect the first temperature (i.e., the intermediate heat exchanger temperature Tz); the second sensor is connected to the condenser of the preservation box, and is used to collect the second temperature (i.e., the condensing temperature Tc); the third sensor is connected to the low-temperature compressor of the preservation box, and is used to collect the first temperature (i.e., the exhaust temperature Tp).

[0079] Specifically, an intermediate heat exchanger temperature sensor is provided at the outlet of the intermediate heat exchanger, a condensation temperature sensor is provided at the outlet of the condenser, and an exhaust temperature sensor is provided on the exhaust pipe of the low-temperature compressor.

[0080] In another implementation, the first sensor assembly includes a pressure sensor, that is, by arranging a pressure sensor on the intake pipe and exhaust pipe of the low-temperature compressor, the corresponding temperature is converted by detecting the pressure, and this temperature is further converted into the box temperature Tx or the ambient temperature Ta.

[0081] In one implementation, the storage box includes a control device; wherein the control device includes:

[0082] The acquisition unit is used to regularly acquire and calculate the difference between the detection values ​​of the in-box temperature sensor Tx and the ambient temperature sensor Ta and the detection values ​​of the intermediate heat exchanger temperature sensor Tz, the condensing temperature sensor Tc, and the exhaust temperature sensor Tp. In this embodiment, the acquisition and calculation are performed every 12 hours, but the present invention is not limited to this. The corresponding temperature can also be acquired every 1 hour, 6 hours, or 24 hours.

[0083] A storage unit for storing the numerical differences △xz, △xc, △xp and △az, △ac, △ap between sensors;

[0084] The calling unit is used to call the stored value in the storage unit when a fault occurs in the internal temperature sensor or the ambient temperature sensor, and convert the value detected by the normal sensor into a replacement temperature value detected by the faulty sensor. For example, if the ambient temperature sensor fails, the value detected by the condenser temperature sensor is used as the replacement, and the temperature replacement value is Ta = Tc + △ac. Alternatively, if the value detected by the remaining normal sensors is used as the replacement, the temperature replacement value is Ta = [(Tc + △ac) + (Tz + △az) + (Tp + △ap)] / 3. Alternatively, 4 to 6 data points are collected to fit and construct correlation functions between the ambient temperature, internal temperature, exhaust temperature, intermediate heat exchanger temperature, and condensing temperature.

[0085] Furthermore, if a normal sensor detection value or correlation function is used for conversion and substitution, based on the strength of the correlation between the detection temperature of the sensors in each part and the temperature inside the box, if the temperature sensor inside the box fails, the calling priority is △xz>△xp>△xc; when the ambient temperature sensor fails, the calling priority is △ac>△az>△ap.

[0086] The compressor control unit controls the start and stop of the compressor and the frequency increase and decrease by detecting the temperature substitute value through the temperature sensor inside the box or the ambient temperature sensor.

[0087] The control method of the preservation box of this embodiment is as follows: when the preservation box is powered on and the refrigeration system is running, after the temperature detected by the temperature sensor inside the box reaches the set temperature value, the high and low temperature compressors stop running, and the requirements are met at this time; when the temperature detected by the temperature sensor inside the box rises again, the requirements are no longer met at this time, and the high and low temperature compressors start to increase the frequency. Among them, the ambient temperature and the temperature detected inside the box determine the compressor frequency increase method. During the stable operation stage, the preservation box regularly collects the detection values ​​of the above five sensors, and calculates the difference between the ambient temperature, the temperature inside the box and the detection values ​​of the other three sensors respectively, and stores them in the storage medium, and regularly collects and calculates new values ​​to iteratively update the old values. When the ambient temperature sensor or the temperature sensor inside the box fails, the difference in the storage medium is called, and the ambient temperature or the temperature inside the box is converted into an alternative value through the real-time detection values ​​of the other three sensors, and this temperature alternative value is used to control the operation of the preservation box compressor.

[0088] like Figure 1 and Figure 3 As shown, the present invention provides a sensor failure control method, which is applied to the above-mentioned preservation box.

[0089] The control method comprises the following steps:

[0090] Step S100: Acquire first temperature information of the first sensor component and second temperature information of the second sensor component.

[0091] In this embodiment, when the freezer is operating stably and the sensor components are not faulty, the second temperature information collected by the second sensor assembly includes the first area temperature (i.e., ambient temperature Ta) corresponding to the first area sensor (ambient temperature sensor) and the second area temperature (i.e., internal temperature Tx) corresponding to the second area sensor (internal temperature sensor). Each sensor collects the second temperature information once every preset time interval (12 hours in this embodiment).

[0092] Step S200: Determine temperature association information between the first sensor component and the second sensor component according to the first temperature information and the second temperature information.

[0093] The temperature-related information includes a first region-related data group and a second region-related data group; the step S200 specifically includes:

[0094] Step S210: At every preset time interval (when the freezer is in stable operation and no device failure occurs), determine the first area associated data group based on the first temperature information and the first area temperature, and determine the second area associated data group based on the first temperature information and the second area temperature.

[0095] Specifically, the ambient temperature sensor and the first sensor form a set of associated data, and the in-box temperature sensor and the first sensor assembly form another set of associated data. In the event of failure of either or both of the ambient temperature sensor and the in-box temperature sensor, the temperature replacement value required for the failed temperature sensor can be obtained subsequently to start and stop the high and low temperature compressors.

[0096] In one implementation, in this embodiment, the first temperature information includes a first temperature (i.e., intermediate heat exchanger temperature Tz) corresponding to the first sensor (i.e., intermediate heat exchanger temperature sensor), a second temperature (i.e., condensing temperature Tc) corresponding to the second sensor (i.e., condensing temperature sensor), and a third temperature (i.e., exhaust gas temperature Tp) corresponding to the third sensor (i.e., exhaust gas temperature sensor); the first region-associated data group includes the first data, the second data, and the third data;

[0097] The step S210 specifically includes:

[0098] Step S211: Determine the first data (i.e., the difference Δaz between the ambient temperature Ta and the intermediate heat exchanger temperature Tz) based on the first temperature and the first zone temperature;

[0099] Step S212: Determine the second data (i.e., the difference Δac between the ambient temperature Ta and the condensation temperature Tc) based on the second temperature and the first region temperature;

[0100] Step S213: Determine the third data (ie, the difference Δap between the ambient temperature Ta and the exhaust temperature Tp) according to the third temperature and the first region temperature.

[0101] It should be noted that the differences between the internal temperature Tx and the intermediate heat exchanger temperature Tz, the condensing temperature Tc, and the exhaust temperature Tp are calculated using the same method described above, and are Δxz, Δxc, and Δxp, respectively. This description is omitted here. In other words, the temperatures in the first and second regions differ only in terms of the ambient temperatures they capture. If the sensor capable of capturing these temperatures fails, the temperature differences corresponding to the failed sensor are used.

[0102] Step S300: When the second sensor component fails, determine alternative temperature information corresponding to the second sensor component according to the first temperature information and the temperature association information.

[0103] In this embodiment, the alternative temperature information includes the first region alternative temperature and the second region alternative temperature; the step S300 specifically includes:

[0104] Step S311: when the first zone temperature sensor fails, determining a first zone alternative temperature corresponding to the first zone temperature sensor according to the second temperature and the second data; and / or

[0105] Step S312: When the second-zone temperature sensor fails, determine a second-zone alternative temperature corresponding to the second-zone sensor according to the first temperature and the second data.

[0106] Specifically, when using a normal sensor's value as a replacement, based on the correlation between the temperature detected by each sensor and the internal temperature, if the internal temperature sensor fails, the priority is △xz > △xp > △xc; if the ambient temperature sensor fails, the priority is △ac > △az > △ap. Furthermore, if the ambient temperature sensor fails, the condenser temperature sensor's value Tc is used as a replacement, resulting in a temperature replacement value of Ta = Tc + △ac. If the internal temperature sensor fails, the intermediate heat exchanger temperature sensor's value Tz is used as a replacement, resulting in a temperature replacement value of Tx = Tz + △az. Either sensor can be replaced individually or simultaneously.

[0107] In a second embodiment, the alternative temperature information includes a first region alternative temperature and a second region alternative temperature;

[0108] The step S300 specifically includes:

[0109] Step S321: determining a first-region replacement temperature corresponding to the first-region sensor according to the first temperature, the second temperature, the third temperature, the first data, the second data, and the third data; and / or

[0110] Step S321: Determine a second-region replacement temperature corresponding to the second-region sensor according to the first temperature, the second temperature, the third temperature, the first data, the second data, and the third data.

[0111] Specifically, after the ambient temperature sensor fails, the average value of the detection values ​​of the remaining normal sensors is used to convert and replace it, and the temperature replacement value is Ta = [(Tc+△ac)+(Tz+△az)+(Tp+△ap)] / 3; after the temperature sensor inside the box fails, the average value of the detection values ​​of the remaining normal sensors is used to convert and replace it, and the temperature replacement value is Tx = [(Tc+△xc)+(Tz+△xz)+(Tp+△xp)] / 3.

[0112] In a third embodiment, the alternative temperature information includes a first region alternative temperature and a second region alternative temperature; the first region association data group is a first region association function group;

[0113] The step S210 specifically includes:

[0114] Step S2101: constructing the first region correlation function group according to the first temperature, the second temperature, the third temperature and the first region temperature at different times;

[0115] The step S300 specifically includes:

[0116] Step S331: When the first zone sensor fails, determine a first zone replacement temperature corresponding to the first zone sensor according to the first zone association function group and the first temperature, the second temperature, and the third temperature.

[0117] Specifically, 4 to 6 data points are collected to fit and construct correlation function relationships between ambient temperature, box temperature and exhaust temperature, intermediate heat exchanger temperature, and condensing temperature. When the correlation function relationship is used for conversion and substitution, based on the strength of the correlation between the temperature detected by sensors in each part and the box temperature, if the box temperature sensor fails, the calling priority is △xz>△xp>△xc; when the ambient temperature sensor fails, the calling priority is △ac>△az>△ap.

[0118] It should be noted that the methods for determining the replacement temperature corresponding to the various embodiments in the above step S300 can be used independently or in combination with each other, and are not specifically limited here.

[0119] In another implementation, the second sensor assembly includes a pressure sensor connected to the low-temperature compressor; the first region-associated data group is pressure-temperature associated data; that is, by further providing a pressure sensor on the intake and exhaust pipes of the low-temperature compressor, the corresponding temperature is calculated by detecting the pressure, and the temperature is further converted into the box temperature or the ambient temperature:

[0120] The step S210 includes:

[0121] Step S2100: determining the pressure-temperature correlation data according to the pressure sensor and the first region temperature;

[0122] The step S300 specifically includes:

[0123] Step S3000: When the first zone sensor fails, determine a first zone alternative temperature corresponding to the first zone sensor according to the pressure-temperature association data and the first temperature, the second temperature, and the third temperature.

[0124] Step S400: Control the start and stop of the high-temperature compressor and the low-temperature compressor according to the alternative temperature information.

[0125] In one implementation, step S400 specifically includes:

[0126] Step S410: When the first zone temperature sensor fails, determining the frequency increase / decrease mode corresponding to the high-temperature compressor and the low-temperature compressor according to the first zone alternative temperature;

[0127] Step S420: Start the high-temperature compressor and the low-temperature compressor according to their respective corresponding frequency increase / decrease modes, so that the operating state of the preservation box meets the set requirements.

[0128] It should be noted that after a rapid temperature increase, the low-temperature storage box enters a stable operation phase. Once the internal temperature Tx reaches the required level and meets the shutdown conditions, the high and low temperature compressors shut down. If the internal temperature Tx rises below the required level, the system begins cooling. The high-temperature compressor starts up and ramps up to the target frequency, maintaining operation for a period of time. The low-temperature compressor then starts up and ramps up to the target frequency until the internal temperature Tx reaches the required level and meets the shutdown conditions.

[0129] The frequency increase method and target frequency are related to the ambient temperature Ta, and the internal temperature Tx, which is detected by the internal temperature sensor. Therefore, the ambient temperature sensor and the internal temperature sensor are the two key sensors that affect the operation of the compressor. Their proper performance is crucial for the reliable operation of the storage box.

[0130] The sensor fault control method of the present invention is further described below through specific embodiments:

[0131] When the freezer is powered on and the refrigeration system is running, the high and low temperature compressors stop running after the temperature Tx detected by the temperature sensor inside the box reaches the set temperature Ts. When the temperature Tx detected by the temperature sensor inside the box rises again and does not meet the requirements, the high and low temperature compressors start to increase the frequency. Among them, the ambient temperature Ta and the temperature Tx detected inside the box determine the compressor frequency increase method. During the stable operation stage of the freezer, the detection values ​​of the above five sensors are collected at regular intervals, and the differences between the ambient temperature, the temperature inside the box and the detection values ​​of the other three sensors are calculated and stored in the storage medium. The new values ​​are collected and calculated at regular intervals (at regular intervals) to iteratively update the old values. When the ambient temperature sensor Ta or the temperature sensor inside the box Tx fails, the difference in the storage medium is called, and the ambient temperature or the temperature inside the box is converted into an alternative value through the real-time detection values ​​of the other three sensors. This temperature alternative value is used to control the operation of the freezer compressor.

[0132] When any sensor interface is detected to be open or short-circuited, the sensor is faulty, and the speaker and alarm light are controlled according to the fault alarm status. The micro-control display screen shows which specific sensor is faulty, which is convenient for after-sales maintenance personnel to check.

[0133] Figure 4 This is a schematic diagram of the structure of a storage box control device provided by the present invention, the control device includes:

[0134] A detection module 501 is configured to obtain first temperature information of the first sensor component and second temperature information of the second sensor component;

[0135] A determination module 502 is configured to determine temperature association information between the first sensor component and the second sensor component based on the first temperature information and the second temperature information;

[0136] a calculation module 503, configured to determine, in the event that the second sensor component fails, alternative temperature information corresponding to the second sensor component based on the first temperature information and the temperature association information;

[0137] The control module 504 is configured to control the start and stop of the high-temperature compressor and the low-temperature compressor according to the alternative temperature information.

[0138] Figure 5 The hardware structure diagram of an electronic device provided by the present invention is shown in FIG. Figure 5 As shown, the electronic device provided in this embodiment includes:

[0139] At least one processor 601 and a memory 602 . The processor 601 and the memory 602 are connected via a bus 603 .

[0140] During the specific implementation process, at least one processor 601 executes the computer-executable instructions stored in the memory 602, so that the at least one processor 601 executes the sensor fault control method in the above method embodiment.

[0141] The specific implementation process of the processor 601 can be found in the above method embodiment. Its implementation principle and technical effects are similar and will not be repeated here in this embodiment.

[0142] In the above Figure 5 In the illustrated embodiment, it should be understood that the processor may be a central processing unit (CPU), other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASICs), etc. A general-purpose processor may be a microprocessor or any conventional processor. The steps of the method disclosed in the present invention may be directly executed by a hardware processor or by a combination of hardware and software modules in the processor.

[0143] The memory may include a high-speed RAM memory, and may also include a non-volatile storage NVM, such as at least one disk storage.

[0144] The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus. Buses can be classified into address buses, data buses, and control buses. For ease of illustration, the buses in the drawings of this application are not limited to just one bus or just one type of bus.

[0145] The present invention also provides a computer-readable storage medium, in which computer-executable instructions are stored. When a processor executes the computer-executable instructions, the sensor fault control method of the above method embodiment is implemented.

[0146] The computer-readable storage medium mentioned above can be implemented by any type of volatile or non-volatile memory device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk, or optical disk. The computer-readable storage medium can be any available medium that can be accessed by a general-purpose or special-purpose computer.

[0147] An exemplary readable storage medium is coupled to a processor so that the processor can read information from the readable storage medium and write information to the readable storage medium. Of course, the readable storage medium can also be an integral part of the processor. The processor and the readable storage medium can be located in an application specific integrated circuit (ASIC). Of course, the processor and the readable storage medium can also exist in a device as discrete components.

[0148] One embodiment of the present application provides a computer program product, including a computer program, which, when executed by a processor, implements the Figures 1 to 3 The sensor failure control method provided in any embodiment of the corresponding embodiment.

[0149] Those skilled in the art will appreciate that all or part of the steps in the above-described method embodiments can be implemented using hardware associated with program instructions. The aforementioned program can be stored in a computer-readable storage medium. When executed, the program performs the steps of the above-described method embodiments. The aforementioned storage medium includes various media capable of storing program code, such as ROM, RAM, magnetic disks, or optical disks.

[0150] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A sensor failure control method, characterized in that: include: Acquiring first temperature information detected by a first sensor assembly and second temperature information detected by a second sensor assembly, wherein the first sensor assembly and the second sensor assembly are disposed in different areas of the refrigeration equipment, wherein the second sensor assembly includes a temperature sensor of the preservation box; determining temperature correlation information between the first sensor component and the second sensor component according to the first temperature information and the second temperature information; in the event that the second sensor assembly fails, determining alternative temperature information of the second sensor assembly based on the first temperature information and the temperature association information; controlling an operating mode of the compressor according to the alternative temperature information; The obtaining of first temperature information detected by the first sensor component includes: acquiring a first temperature detected by a first sensor, where the first sensor is disposed on the intermediate heat exchanger; acquiring a second temperature detected by a second sensor, where the second sensor is disposed on the condenser; acquiring a third temperature detected by a third sensor, where the third sensor is disposed on the low-temperature compressor; The acquiring the second temperature information detected by the second sensor component includes: Obtain the first area temperature detected by the first area sensor and the second area temperature detected by the second area sensor; wherein the first area sensor is set on the condensing fan and the second area sensor is set in the box; or the first area sensor is set in the box and the second area sensor is set on the condensing fan.

2. The sensor failure control method according to claim 1, characterized in that: The second temperature information includes a first area temperature corresponding to the first area sensor and a second area temperature corresponding to the second area sensor, and the temperature association information includes a first area association data group and a second area association data group; The determining, based on the first temperature information and the second temperature information, temperature association information between the first sensor component and the second sensor component includes: At every preset time interval, the first region associated data group is determined according to the first temperature information and the first region temperature, and the second region associated data group is determined according to the first temperature information and the second region temperature.

3. The sensor failure control method according to claim 2, characterized in that: The first temperature information includes a first temperature corresponding to the first sensor, a second temperature corresponding to the second sensor, and a third temperature corresponding to the third sensor; The first region-associated data group includes first data, second data, and third data; The determining the first region-associated data group according to the first temperature information and the first region temperature includes: Calculate the difference between the first temperature and the first area temperature to obtain the first data Calculating the difference between the second temperature and the first region temperature to obtain the second data; Calculating a difference between the third temperature and the first region temperature to obtain the third data; The first data, the second data, and the third data are determined as information between the first area sensor and the first sensor component, and the first data, the second data, and the third data are stored.

4. The sensor failure control method according to claim 3, characterized in that: The alternative temperature information includes a first region alternative temperature and a second region alternative temperature; The determining, in the event that the second sensor component fails, the alternative temperature information corresponding to the second sensor component according to the first temperature information and the temperature association information includes: When the first zone sensor fails, calculating the sum of the second temperature and the second data, and using the sum of the second temperature and the second data as the first zone alternative temperature; and / or When the second-region temperature sensor fails, a sum of the first temperature and the second data is calculated, and the sum of the first temperature and the second data is used as the second-region replacement temperature.

5. The sensor failure control method according to claim 3, characterized in that: The alternative temperature information includes a first region alternative temperature and a second region alternative temperature; The determining, in the event that the second sensor component fails, the alternative temperature information corresponding to the second sensor component according to the first temperature information and the temperature association information includes: Calculating a sum of the first temperature and the first data, a sum of the second temperature and the second data, and a sum of the third temperature and the third data, taking an average of the sum of the first temperature and the first data, the sum of the second temperature and the second data, and the sum of the third temperature and the third data, and using the average as the replacement temperature for the first region; and / or Calculate the sum of the first temperature and the first data, the sum of the second temperature and the second data, and the sum of the third temperature and the third data, and take the average value of the sum of the first temperature and the first data, the sum of the second temperature and the second data, and the sum of the third temperature and the third data, and use the average value as the replacement temperature for the second area.

6. The sensor failure control method according to claim 2, characterized in that: The first region association data group is a first region association function group; the alternative temperature information includes a first region alternative temperature; The determining the first region-associated data group according to the first temperature information and the first region temperature includes: constructing the first region correlation function group according to the first temperature, the second temperature, the third temperature and the first region temperature at different times; The determining, in the event that the second sensor component fails, the alternative temperature information corresponding to the second sensor component according to the first temperature information and the temperature association information includes: When the first zone sensor fails, a first zone replacement temperature corresponding to the first zone sensor is determined according to the first zone correlation function group and the first temperature, the second temperature, and the third temperature.

7. The sensor failure control method according to claim 2, characterized in that: The second sensor assembly includes a pressure sensor connected to the low-temperature compressor; the first region-related data group is pressure-temperature related data; The determining the first region-associated data group according to the first temperature information and the first region temperature includes: determining the pressure-temperature correlation data according to the pressure sensor and the first region temperature; The determining, in the event that the second sensor component fails, the alternative temperature information corresponding to the second sensor component according to the first temperature information and the temperature association information includes: When the first zone sensor fails, a first zone alternative temperature corresponding to the first zone sensor is determined according to the pressure-temperature correlation data and the first temperature, the second temperature, and the third temperature.

8. The sensor failure control method according to claim 2, characterized in that: The first area sensor is an ambient temperature sensor, and the second area sensor is an internal temperature sensor.

9. The sensor failure control method according to any one of claims 5 to 7, characterized in that: The controlling the start and stop of the high-temperature compressor and the low-temperature compressor according to the alternative temperature information includes: When the first zone sensor fails, determining the frequency increase or decrease mode corresponding to the high-temperature compressor and the low-temperature compressor according to the first zone alternative temperature; The high-temperature compressor and the low-temperature compressor are started according to their respective corresponding frequency increase and decrease modes, so that the operating state of the preservation box meets the set requirements.

10. A storage box control device, characterized in that: include: a detection module, configured to obtain first temperature information of the first sensor component and second temperature information of the second sensor component; a determining module, configured to determine temperature association information between the first sensor component and the second sensor component based on the first temperature information and the second temperature information; a calculation module, configured to determine, in the event of a failure of the second sensor component, alternative temperature information corresponding to the second sensor component based on the first temperature information and the temperature association information; a control module, configured to control the start and stop of the high-temperature compressor and the low-temperature compressor according to the alternative temperature information; The method for the above-mentioned preservation box control device to obtain the first temperature information detected by the first sensor component includes: acquiring a first temperature detected by a first sensor, where the first sensor is disposed on the intermediate heat exchanger; acquiring a second temperature detected by a second sensor, where the second sensor is disposed on the condenser; acquiring a third temperature detected by a third sensor, where the third sensor is disposed on the low-temperature compressor; The acquiring the second temperature information detected by the second sensor component includes: Obtain the first area temperature detected by the first area sensor and the second area temperature detected by the second area sensor; wherein the first area sensor is set on the condensing fan and the second area sensor is set in the box; or the first area sensor is set in the box and the second area sensor is set on the condensing fan.

11. An electronic device, characterized in that: include: at least one processor, and at least one memory communicatively coupled to the processor; The memory stores computer-executable instructions; The processor executes the computer-executable instructions stored in the memory to implement the method according to any one of claims 1 to 9.

12. A storage box, characterized in that: Comprising the electronic device as claimed in claim 11.

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