CN109085865B - Temperature control method and device for equipment, storage medium and control system - Google Patents
Temperature control method and device for equipment, storage medium and control system Download PDFInfo
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- CN109085865B CN109085865B CN201810980550.2A CN201810980550A CN109085865B CN 109085865 B CN109085865 B CN 109085865B CN 201810980550 A CN201810980550 A CN 201810980550A CN 109085865 B CN109085865 B CN 109085865B
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- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/1927—Control of temperature characterised by the use of electric means using a plurality of sensors
- G05D23/193—Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperaure in different places in thermal relationship with one or more spaces
- G05D23/1931—Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperaure in different places in thermal relationship with one or more spaces to control the temperature of one space
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Abstract
The application relates to a temperature control method, a device, a storage medium and a control system of equipment, which are used for acquiring the temperatures of different positions of the equipment; obtaining a temperature deviation result according to the temperatures of different positions and a preset target temperature; and outputting a shutdown control signal when the detected temperature deviation result reaches a minimum threshold value, wherein the minimum threshold value is obtained according to a preset target temperature and the temperature deviation result, and the shutdown control signal is used for controlling a refrigeration device of the equipment to shut down. The method comprises the steps of collecting temperatures of different positions in the equipment, evaluating the integral temperature deviation result of the equipment according to a preset target temperature and the temperatures of different positions, obtaining a minimum threshold value according to the preset target temperature and the temperature deviation result, outputting a shutdown control signal when the temperature deviation result is smaller than the minimum threshold value, detecting and controlling the temperatures of different positions in the equipment, and ensuring that the deviation of the integral temperature and the preset target temperature in the equipment is within a minimum range and the temperature control reliability is high.
Description
Technical Field
The present disclosure relates to the field of temperature control technologies, and in particular, to a method, an apparatus, a storage medium, and a control system for controlling a temperature of a device.
Background
The refrigerating equipment is mainly used for refrigerating the food of crews, refrigerating various goods and regulating the air of cabins in summer.
The temperature control of the traditional equipment refrigerating system is consistent with other products in the refrigeration air-conditioning industry, the temperature in the equipment is represented by the temperature of the air supply and return, the temperature in the equipment is controlled by the temperature of the air supply and return at the evaporation side, but the temperature in the equipment cannot be accurately represented by the temperature of the air supply and return, the precision is low, and the reliability of temperature control in subsequent equipment is low.
Disclosure of Invention
In view of the above, it is necessary to provide a temperature control method, device, storage medium, and control system for a device with high temperature control accuracy.
A method of temperature control of a device, the method comprising:
acquiring temperatures of different positions of equipment;
obtaining a temperature deviation result according to the temperatures of the different positions and a preset target temperature;
and outputting a shutdown control signal when the temperature deviation result reaches a minimum threshold value, wherein the minimum threshold value is obtained according to the preset target temperature and the temperature deviation result, and the shutdown control signal is used for controlling a refrigerating device of the equipment to be shut down.
In one embodiment, the obtaining the temperature deviation result according to the temperatures of the different positions and a preset target temperature includes:
||＝(((T1-T)2+(T2-T)2+……+(Tn-T)2)÷n)0.5
wherein, | | is temperature deviation result, T1～TnT is the preset target temperature.
In one embodiment, the minimum threshold is a step obtained according to the preset target temperature and the temperature deviation result, and includes:
obtaining a real-time temperature according to the temperature deviation result and the preset target temperature;
and obtaining a minimum threshold value according to the preset target temperature and the real-time temperature.
In one embodiment, after the step of obtaining the real-time temperature according to the temperature deviation result and the preset target temperature, the method further includes:
obtaining an air enthalpy value according to the real-time temperature;
obtaining relative humidity according to the air enthalpy value and a preset enthalpy value-humidity corresponding relation;
and outputting a humidity control signal according to the relative humidity, wherein the humidity control signal is used for controlling a humidity control device of the equipment to execute humidity control operation.
In one embodiment, the step of outputting a humidity control signal according to the relative humidity comprises:
acquiring humidity sent by a humidity sensor;
obtaining real-time humidity according to the humidity and the relative humidity;
and outputting a humidity control signal according to the real-time humidity.
In one embodiment, after the step of obtaining the temperature deviation result according to the temperatures of the different locations and the preset target temperature, the method further includes:
and returning to the step of acquiring the temperatures of different positions of the equipment when the temperature deviation result is detected to be greater than or equal to a preset threshold value.
An apparatus for temperature control of a device, the apparatus comprising:
the temperature acquisition module is used for acquiring the temperatures of different positions of the equipment;
the deviation result determining module is used for obtaining a temperature deviation result according to the temperatures of the different positions and a preset target temperature;
and the shutdown control module is used for outputting a shutdown control signal when the temperature deviation result is detected to reach a minimum threshold value, wherein the minimum threshold value is obtained according to the preset target temperature and the temperature deviation result, and the shutdown control signal is used for controlling a refrigerating device of the equipment to be shut down.
A computer-readable storage medium, on which a computer program is stored which, when executed by a processor, carries out the steps of:
acquiring temperatures of different positions of equipment;
obtaining a temperature deviation result according to the temperatures of the different positions and a preset target temperature;
and outputting a shutdown control signal when the temperature deviation result reaches a minimum threshold value, wherein the minimum threshold value is obtained according to the preset target temperature and the temperature deviation result, and the shutdown control signal is used for controlling a refrigerating device of the equipment to be shut down.
A temperature control system comprises a controller and a refrigerating device, wherein the refrigerating device is connected with the controller;
the controller is used for acquiring the temperatures of different positions of the equipment; obtaining a temperature deviation result according to the temperatures of the different positions and a preset target temperature; outputting a shutdown control signal when the temperature deviation result is detected to reach a minimum threshold value, wherein the minimum threshold value is obtained according to the preset target temperature and the temperature deviation result;
the refrigerating device is used for performing shutdown operation according to the received shutdown control signal.
The temperature control method, the device, the storage medium and the control system of the equipment acquire the temperatures of different positions of the equipment; obtaining a temperature deviation result according to the temperatures of different positions and a preset target temperature; and outputting a shutdown control signal when the detected temperature deviation result reaches a minimum threshold value, wherein the minimum threshold value is obtained according to a preset target temperature and the temperature deviation result, and the shutdown control signal is used for controlling a refrigeration device of the equipment to shut down. The method comprises the steps of collecting temperatures of different positions in the equipment, evaluating the integral temperature deviation result of the equipment according to a preset target temperature and the temperatures of different positions, obtaining a minimum threshold value according to the preset target temperature and the temperature deviation result, outputting a shutdown control signal when the temperature deviation result is smaller than the minimum threshold value, detecting and controlling the temperatures of different positions in the equipment, and ensuring that the deviation of the integral temperature and the preset target temperature in the equipment is within a minimum range and the temperature control reliability is high.
Drawings
FIG. 1 is a flow chart of a method for temperature control of a device according to one embodiment;
FIG. 2 is a schematic diagram of a multi-point temperature control network in one embodiment;
FIG. 3 is a schematic cross-sectional view of a multi-point temperature control network according to an embodiment;
FIG. 4 is a flow chart of a method for temperature control of the apparatus in another embodiment;
FIG. 5 is a flow chart of a method for temperature control of the apparatus in yet another embodiment;
FIG. 6 is a flow chart of a method for temperature control of the apparatus in yet another embodiment;
FIG. 7 is a flow chart of a method for temperature control of the apparatus in yet another embodiment;
FIG. 8 is a block diagram showing the structure of a temperature control device of the apparatus according to one embodiment;
FIG. 9 is a block diagram of a temperature control system in one embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
In one embodiment, as shown in fig. 1, a method for controlling the temperature of a device is provided, which is exemplified by applying the method to a controller, and comprises the following steps:
step S110: the temperatures of different locations of the device are obtained.
Specifically, in this embodiment, the device is a container, and obtains temperatures at different positions in the container, and usually, temperature sensors are disposed at different positions in the container, and the temperatures at the corresponding positions are detected by controlling the temperature sensors and sent to the controller.
Further, as shown in fig. 2 and 3, in this embodiment, a multipoint three-dimensional temperature control network arrangement is adopted, a multipoint temperature control network structure frame is fixed, the frame is mainly made of aluminum, the main function is to fix a plurality of temperature sensors at different positions required by the multipoint temperature control network, and the multipoint temperature control network structure frame is simple and convenient to install, so that the direct installation and use of the existing container can be realized, adverse effects such as heat leakage and the like caused by the damage to a box body structure are avoided, the number and positions of the temperature sensor groups can be set according to actual needs, it can be understood that the temperature sensors or the temperature sensing bags are uniformly arranged at the front, middle and rear sections of the container, the collected temperature of the whole container can be more accurate, and the reliability of temperature control is improved, in this embodiment, 3 groups of 12 temperature sensors are arranged at the front, middle and rear sections.
Step S120: and obtaining a temperature deviation result according to the temperatures of different positions and a preset target temperature.
Specifically, after the temperature collected by each point is obtained, the controller calculates the deviation condition of the temperature of each part and the target temperature according to the temperature data of each point and a mean square error formula method.
Step S130: and outputting a shutdown control signal when the detected temperature deviation result reaches a minimum threshold value.
Specifically, the shutdown control signal is used for controlling the refrigeration device to shutdown, wherein the minimum threshold is obtained according to a preset target temperature and a temperature deviation result.
Further, when the temperature deviation result is detected to be smaller than the minimum threshold value, it is indicated that the overall temperature in the equipment is close to reach the preset target temperature, the refrigeration device (corresponding to the refrigeration equipment in fig. 2) is controlled to shut down, and the temperature deviation of each part in the box body is ensured to be within the minimum range.
The temperature control method of the equipment comprises the steps of collecting temperatures of different positions in the equipment, evaluating the integral temperature deviation result of the equipment according to the preset target temperature and the temperatures of the different positions, obtaining the minimum threshold value according to the preset target temperature and the temperature deviation result, outputting a shutdown control signal when the temperature deviation result is smaller than the minimum threshold value, detecting and controlling the temperatures of the different positions in the equipment, and ensuring that the deviation of the integral temperature and the preset target temperature in the equipment is within the minimum range and the temperature control reliability is high.
In one embodiment, step S120 specifically includes:
||＝(((T1-T)2+(T2-T)2+……+(Tn-T)2)÷n)0.5
wherein, | | is temperature deviation result, T1～TnFor temperatures at a plurality of different locations, T being a presetA target temperature.
Specifically, the controller calculates the deviation conditions of the temperatures of different parts in the equipment and the preset target temperature according to the temperature data of each point and a mean square error formula method, and obtains the integral temperature deviation result in the equipment.
In one embodiment, as shown in fig. 4, step S130 includes steps S131 to S133.
Step S131: and obtaining the real-time temperature according to the temperature deviation result and the preset target temperature.
Step S132: and obtaining a minimum threshold value according to the preset target temperature and the real-time temperature.
Step S133: and outputting a shutdown control signal when the detected temperature deviation result reaches a minimum threshold value.
Specifically, after calculating the | |, it is calculated from T1+T2……+T12-12T is positive, judging the current positive or negative, and determining the real-time temperature TReal timeIf T is1+T2……+T12-12T>0, then > 0, TReal timeT + |, otherwise TReal time＝T-||。
When | | | is less than or equal to △ T, the controller records each moment and analyzes, wherein △ T is the difference value between the preset target temperature and the real-time temperature, and after | | | reaches the minimum value, when | | | begins to become larger gradually, it is judged that T is at the momentReal timeAnd outputting a shutdown control signal to control the refrigeration device to shut down when the closest point to the T, namely the minimum threshold value is reached.
In one embodiment, as shown in fig. 5, after step S131, step S134 to step S136 are further included.
Step S134: and obtaining the enthalpy value of the air according to the real-time temperature.
Specifically, the enthalpy value in the air refers to the total heat contained in the air, different temperatures correspond to different enthalpy values, and the enthalpy value of the air can be obtained according to the temperature-enthalpy value corresponding relation after the real-time temperature is determined.
Step S135: and obtaining the relative humidity according to the air enthalpy value and the preset enthalpy value-humidity corresponding relation.
In particular, in-box according to real-time monitoringTemperature TReal timeAnd the relative humidity in the container is obtained by combining and determining the relative humidity through a preset corresponding relation stored in the controller and a temperature/humidity relation represented by an enthalpy-humidity diagram.
Step S136: and outputting a humidity control signal according to the relative humidity.
In particular, the humidity control signal is used to control a humidity control device of the apparatus to perform a humidity control operation. Relative humidity is obtained according to real-time temperature in the equipment, and the humidity control device is controlled to correspondingly control the humidity in the equipment, so that the dual high-reliability requirements of the temperature and the humidity in the equipment are met.
In one embodiment, as shown in fig. 6, step S136 includes steps S1362 to S366.
Step S1362: and acquiring the humidity sent by the humidity sensor.
Specifically, the controller outputs a humidity detection control signal, and the humidity detection control signal is used for controlling the humidity sensor to detect humidity and send the humidity to the controller, so that the actual humidity in the equipment is obtained.
Step S1364: and obtaining real-time humidity according to the humidity and the relative humidity.
Specifically, the two humidity detections are combined to perform mutual detection and comparison according to the obtained actual humidity in the equipment and the theoretical humidity, namely the relative humidity calculated according to the real-time temperature, and finally the average value is taken as the real-time humidity in the container, so that the humidity is further corrected, and the humidity detection accuracy is improved.
Step S1366: and outputting a humidity control signal according to the real-time humidity.
In particular, the humidity control signal is used to control a humidity control device of the apparatus to perform a humidity control operation. And outputting a humidity control signal according to the corrected real-time humidity, so that the accuracy of humidity control is improved.
In one embodiment, as shown in fig. 7, after step S120, step S140 is further included.
Step S140: when it is detected that the temperature deviation result does not reach the minimum threshold value, the process returns to step S110.
Specifically, when the temperature deviation result is detected not to reach the minimum threshold value, the detection is continued according to the logic until the temperature deviation result reaches the minimum threshold value.
Further, after step S130, the method further includes: and outputting a starting control signal when the temperature deviation result is greater than or equal to the preset maximum threshold value, wherein the starting control signal is used for controlling the starting of a refrigerating device of the equipment, and returning to the step S110.
Specifically, the preset maximum threshold is the maximum operation deviation, when the temperature deviation result is greater than or equal to the preset maximum threshold, the refrigeration device is controlled to be gradually loaded and operated, if the temperature deviation result is always greater than the preset maximum threshold, the refrigeration device is controlled to be always fully loaded and operated, the step of step S110 to obtain the temperatures of different positions of the equipment in real time is returned, and the process is repeated.
The temperature control method of the equipment adopts multi-point three-dimensional temperature control network arrangement, collects the temperatures of different positions in the equipment, evaluates the integral temperature deviation result of the equipment according to the preset target temperature and the temperatures of different positions, obtains the minimum threshold value according to the preset target temperature and the temperature deviation result, outputs a shutdown control signal when the temperature deviation result is less than the minimum threshold value, detects and controls the temperatures of different positions in the equipment, ensures that the integral temperature and the preset target temperature in the equipment are within the minimum range, improves the temperature control precision, utilizes multi-point temperature control layout to collect the integral temperature of the equipment to regulate and control the box temperature, realizes the redundant design of temperature control reliability, enhances the temperature control reliability requirement, ensures that the temperature field deviation is uniform, utilizes the real-time box temperature obtained based on the mean square error to carry out humidity check with the actual humidity obtained by a humidity sensor, and improves the accuracy of humidity control, the goods in the box can be prevented from being damaged due to the temperature and humidity control problem.
It should be understood that although the various steps in the flowcharts of fig. 1, 4-7 are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least some of the steps in fig. 1, 4-7 may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, and the order of performance of the sub-steps or stages is not necessarily sequential, but may be performed in turn or alternating with other steps or at least some of the sub-steps or stages of other steps.
In one embodiment, as shown in fig. 8, a device for controlling temperature of an apparatus includes a temperature obtaining module 110, a deviation determination module 120, and a shutdown control module 130, wherein:
the temperature acquisition module 110 is used for acquiring the temperatures of different positions of the equipment; a deviation result determining module 120, configured to obtain a temperature deviation result according to the temperatures at different positions and a preset target temperature; and the shutdown control module 130 is configured to output a shutdown control signal when it is detected that the temperature deviation result reaches a minimum threshold, where the minimum threshold is obtained according to a preset target temperature and the temperature deviation result, and the shutdown control signal is used to control a refrigeration apparatus of the device to shutdown.
In one embodiment, the deviation result determining module is specifically:
||＝(((T1-T)2+(T2-T)2+……+(Tn-T)2)÷n)0.5
wherein, | | is temperature deviation result, T1～TnT is the preset target temperature.
In one embodiment, the shutdown control module includes a real-time temperature determination unit, a minimum threshold determination unit, and a shutdown control unit.
The real-time temperature determining unit is used for obtaining a real-time temperature according to the temperature deviation result and a preset target temperature; the minimum threshold value determining unit is used for obtaining a minimum threshold value according to a preset target temperature and a real-time temperature; the shutdown control unit is used for outputting a shutdown control signal when the temperature deviation result reaches a minimum threshold value.
In one embodiment, the real-time temperature determination unit is followed by an air enthalpy determination unit, a relative humidity determination unit and a humidity control unit.
The air enthalpy value determining unit is used for obtaining an air enthalpy value according to the real-time temperature; the relative humidity determining unit is used for obtaining relative humidity according to the air enthalpy value and the preset enthalpy value-humidity corresponding relation; the humidity control unit is used for outputting a humidity control signal according to the relative humidity, and the humidity control signal is used for controlling a humidity control device of the equipment to execute humidity control operation.
In one embodiment, the humidity control unit includes a humidity acquisition unit, a real-time humidity determination unit, and a humidity control update unit.
The humidity acquisition unit is used for acquiring the humidity sent by the humidity sensor; the real-time humidity determining unit is used for obtaining real-time humidity according to the humidity and the relative humidity; the humidity control updating unit is used for outputting a humidity control signal according to the real-time humidity.
In one embodiment, the deviation result determining module is followed by a temperature reacquisition module, and the temperature reacquisition module is configured to control the temperature reacquisition module to reacquire the temperature of a different location of the device when it is detected that the temperature deviation result does not reach the minimum threshold.
The temperature control device of the equipment adopts multi-point three-dimensional temperature control network arrangement, collects the temperatures of different positions in the equipment, evaluates the integral temperature deviation result of the equipment according to the preset target temperature and the temperatures of different positions, obtains the minimum threshold value according to the preset target temperature and the temperature deviation result, outputs a shutdown control signal when the temperature deviation result is less than the minimum threshold value, detects and controls the temperatures of different positions in the equipment, ensures that the integral temperature and the preset target temperature in the equipment are within the minimum range, improves the temperature control precision, utilizes multi-point temperature control layout to collect the integral temperature of the equipment to regulate and control the box temperature, realizes the redundant design of temperature control reliability, enhances the requirement of temperature control reliability, ensures that the temperature field deviation is uniform, utilizes the real-time box temperature obtained based on the mean square error to carry out humidity check with the actual humidity obtained by the humidity sensor, and improves the accuracy of humidity control, the goods in the box can be prevented from being damaged due to the temperature and humidity control problem.
For the specific definition of the temperature control device of the apparatus, reference may be made to the above definition of the temperature control method of the apparatus, which is not described herein again. The various modules in the temperature control device of the above-described apparatus may be implemented in whole or in part by software, hardware, and combinations thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
In one embodiment, a computer-readable storage medium is provided, having a computer program stored thereon, which when executed by a processor, performs the steps of: acquiring temperatures of different positions of equipment; obtaining a temperature deviation result according to the temperatures of different positions and a preset target temperature; and outputting a shutdown control signal when the detected temperature deviation result reaches a minimum threshold value, wherein the minimum threshold value is obtained according to a preset target temperature and the temperature deviation result, and the shutdown control signal is used for controlling a refrigeration device of the equipment to shut down.
In one embodiment, when the computer program is executed by the processor, outputting a shutdown control signal when the detected temperature deviation reaches a minimum threshold, where the minimum threshold is a step obtained according to a preset target temperature and the temperature deviation result, and the step includes: obtaining a real-time temperature according to the temperature deviation result and a preset target temperature; obtaining a minimum threshold value according to a preset target temperature and a real-time temperature; and outputting a shutdown control signal when the detected temperature deviation result reaches a minimum threshold value.
In one embodiment, the computer program, when executed by the processor, further includes, after the step of obtaining the real-time temperature according to the temperature deviation result and the preset target temperature: obtaining an air enthalpy value according to the real-time temperature; obtaining relative humidity according to the air enthalpy value and a preset enthalpy value-humidity corresponding relation; and outputting a humidity control signal according to the relative humidity, wherein the humidity control signal is used for controlling a humidity control device of the equipment to execute humidity control operation.
In one embodiment, the step of outputting a humidity control signal based on relative humidity when the computer program is executed by the processor comprises: acquiring humidity sent by a humidity sensor; obtaining real-time humidity according to the humidity and the relative humidity; and outputting a humidity control signal according to the real-time humidity.
In one embodiment, after the step of obtaining the temperature deviation result according to the temperatures of the different locations and the preset target temperature when the computer program is executed by the processor, the method further includes: and when the temperature deviation result is detected not to reach the minimum threshold value, returning to the step of acquiring the temperature of different positions of the equipment.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware related to instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
In one embodiment, as shown in fig. 9, a temperature control system includes a controller 210 and a refrigeration device 220, the refrigeration device 220 being coupled to the controller 210; the controller 210 is used for acquiring the temperature of different positions of the equipment; obtaining a temperature deviation result according to the temperatures of different positions and a preset target temperature; outputting a shutdown control signal when the detected temperature deviation result reaches a minimum threshold value, wherein the minimum threshold value is obtained according to a preset target temperature and the temperature deviation result; the cooling device 220 is configured to perform a shutdown operation according to the received shutdown control signal.
In one embodiment, the temperature control system further comprises a temperature sensor connected to the controller, and the controller is used for outputting a temperature detection signal to the temperature sensor; the temperature sensor is used for detecting the temperature of different positions of the equipment according to the received temperature detection signal and sending the temperature to the controller.
In one embodiment, the temperature control system further comprises a humidity control device, the humidity control device being connected to the controller.
In one embodiment, the temperature control system further comprises a humidity sensor, the humidity sensor being connected to the controller.
For the specific definition of the temperature control system, reference may be made to the above definition of the temperature control method of the device, which is not described herein again.
The temperature control system adopts multi-point three-dimensional temperature control network arrangement, collects the temperatures of different positions in the equipment, evaluates the integral temperature deviation result of the equipment according to the preset target temperature and the temperatures of different positions, obtains the minimum threshold value according to the preset target temperature and the temperature deviation result, outputs a shutdown control signal when the temperature deviation result is smaller than the minimum threshold value, detects and controls the temperatures of different positions in the equipment, ensures that the integral temperature in the equipment and the preset target temperature are within the minimum range, improves the temperature control precision, utilizes multi-point temperature control layout, collects the integral temperature of the equipment to regulate and control the box temperature, realizes the redundant design of temperature control reliability, enhances the requirement of temperature control reliability, ensures that the deviation of a temperature field is uniform, utilizes the real-time box temperature obtained based on mean square error to carry out humidity check with the actual humidity obtained by a humidity sensor, and improves the accuracy of humidity control, the goods in the box can be prevented from being damaged due to the temperature and humidity control problem.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (8)
1. A method of temperature control of a device, the method comprising:
acquiring temperatures of different positions of equipment; wherein the temperatures of different positions of the equipment represent the overall temperature condition of the equipment;
obtaining a temperature deviation result according to the temperatures at different positions and a preset target temperature, and specifically calculating the deviation condition of the temperatures at different parts in the equipment and the preset target temperature according to a mean square error formula method to obtain an integral temperature deviation result in the equipment;
when the temperature deviation result is detected to reach a minimum threshold value, outputting a shutdown control signal, wherein the minimum threshold value is obtained according to the preset target temperature and the temperature deviation result, and the shutdown control signal is used for controlling a refrigerating device of the equipment to be shut down;
when the temperature deviation result is detected to reach a minimum threshold value, outputting a shutdown control signal, wherein the minimum threshold value is obtained according to the preset target temperature and the temperature deviation result, and the shutdown control signal comprises the following steps:
obtaining a real-time temperature according to the temperature deviation result and the preset target temperature;
obtaining a minimum threshold value according to the preset target temperature and the real-time temperature;
when the temperature deviation result is detected to reach the minimum threshold value, outputting a shutdown control signal;
and returning to the step of acquiring the temperatures of different positions of the equipment when the temperature deviation result is detected not to reach the minimum threshold value.
2. The method according to claim 1, wherein the obtaining of the temperature deviation result according to the temperatures of the different locations and the preset target temperature specifically comprises:
||＝(((T1-T)2+(T2-T)2+……+(Tn-T)2)÷n)0.5
wherein, | | is temperature deviation result, T1～TnT is the preset target temperature.
3. The method of claim 1, wherein after the step of obtaining the real-time temperature according to the temperature deviation result and the preset target temperature, the method further comprises:
obtaining an air enthalpy value according to the real-time temperature;
obtaining relative humidity according to the air enthalpy value and a preset enthalpy value-humidity corresponding relation;
and outputting a humidity control signal according to the relative humidity, wherein the humidity control signal is used for controlling a humidity control device of the equipment to execute humidity control operation.
4. The method of claim 3, wherein said step of outputting a humidity control signal based on said relative humidity comprises:
acquiring humidity sent by a humidity sensor;
obtaining real-time humidity according to the humidity and the relative humidity;
and outputting a humidity control signal according to the real-time humidity.
5. An apparatus for controlling the temperature of a device, the apparatus comprising:
the temperature acquisition module is used for acquiring the temperatures of different positions of the equipment; wherein the temperatures of different positions of the equipment represent the overall temperature condition of the equipment;
the deviation result determining module is used for obtaining a temperature deviation result according to the temperatures at different positions and a preset target temperature, and specifically calculating the deviation conditions of the temperatures at different parts in the equipment and the preset target temperature according to a mean square error formula method to obtain an integral temperature deviation result in the equipment;
the shutdown control module is used for outputting a shutdown control signal when the temperature deviation result is detected to reach a minimum threshold value, wherein the minimum threshold value is obtained according to the preset target temperature and the temperature deviation result, and the shutdown control signal is used for controlling a refrigeration device of the equipment to be shut down;
the shutdown control module comprises a real-time temperature determining unit, a minimum threshold determining unit and a shutdown control unit, wherein the real-time temperature determining unit is used for obtaining a real-time temperature according to the temperature deviation result and the preset target temperature; the minimum threshold value determining unit is used for obtaining a minimum threshold value according to the preset target temperature and the real-time temperature; the shutdown control unit is used for outputting a shutdown control signal when the temperature deviation result is detected to reach a minimum threshold value;
and the temperature reacquisition module is used for controlling the temperature reacquisition module to reacquire the temperatures of different positions of the equipment when the temperature deviation result is detected not to reach the minimum threshold value.
6. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 4.
7. The temperature control system is characterized by comprising a controller and a refrigerating device, wherein the refrigerating device is connected with the controller;
the controller is used for outputting a shutdown control signal according to the method of any one of claims 1 to 4;
the refrigerating device is used for performing shutdown operation according to the received shutdown control signal.
8. The system of claim 7, further comprising a temperature sensor coupled to the controller,
the controller is used for outputting a temperature detection signal to the temperature sensor;
the temperature sensor is used for detecting the temperatures of different positions of the equipment according to the received temperature detection signals and sending the temperatures to the controller.
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| CN112665304A (en) * | 2020-12-28 | 2021-04-16 | 珠海格力电器股份有限公司 | Multi-point temperature control method and device for refrigeration house and refrigeration house |
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