A control method and related equipment for water temperature regulation

Abstract

The present application provides a control method and related devices for water temperature regulation. The control method includes: S100, obtaining water tank temperature information; S200, obtaining a water temperature regulation strategy according to the water tank temperature information; S300, when the temperature regulation mode is the heating mode, using a control signal to control the heating tube group to heat and determining whether the double heating condition is satisfied during the heating process; the double heating condition is that the output amount of the control signal reaches the specified maximum output amount, or there is an open circuit in the heating tube group; S400, if the judgment results within the first preset time period all satisfy the double heating condition, then simultaneously controlling the semiconductor temperature regulating chips in the semiconductor temperature regulating group to heat; otherwise, returning to S200. The present application meets the control requirements of combining the heating tube and semiconductor temperature regulation through an intelligent control method, and realizes reliable water temperature regulation.

Description

Technical Field

[0001] This application relates to the technical field of constant temperature control, and particularly to a control method and related equipment for water temperature regulation. Background Art

[0002] In high-tech industries, temperature control is a key factor in ensuring the stable operation of equipment and product quality. A constant temperature circulator is used as a container for constant temperature reactions and is widely used in many fields such as petrochemical, metallurgy, and pharmaceutical industries.

[0003] Exemplarily, taking the temperature control method and temperature control system of a semiconductor heating device disclosed in Application No. CN202410059408.X as an example, the corresponding relationship between the theoretical power and temperature is obtained by preheating the semiconductor heating device with different preset temperatures as preset target temperatures and fitting the temperature data and power data in the steady state stages corresponding to the different preset temperatures. After the first temperature increase control is performed through S0 and the adjustment parameters of the first temperature increase control are calibrated, subsequent temperature increase controls do not need to recalibrate the adjustment parameters, and the temperature balance control process during the temperature increase control process can be smoothly achieved.

[0004] However, with the progress of technology, through the characteristics of semiconductor materials, heat energy flow is achieved under the action of current, thereby achieving refrigeration or heating effects. Compared with traditional compressor temperature control equipment, it has significant advantages such as small volume, light weight, no noise, and no vibration, making it perform well in environments that require precise temperature control and are sensitive to noise and vibration. In the above related technologies, the heating device is limited to a single resistance wire heater or graphite heater, and the technical solution of dual heating (combining a heating pipe and semiconductor temperature regulation) is not considered. Currently, there is a lack of a control scheme for effectively dealing with the hardware configuration of dual heating, resulting in an obvious technical gap.

[0005] Due to the lack of consideration of the technical solution of combining a heating pipe and semiconductor temperature regulation applicable to equipment such as a constant temperature circulator, the related technologies are not suitable for the control requirements of a control system including a heating pipe and a semiconductor temperature regulation chip. Based on this, this application provides a control method and device for water temperature regulation, aiming to solve the above problems. Summary of the Invention

[0006] The purpose of this application is to solve the problem that the existing technology is not suitable for the control requirements of a system combining a heating pipe and semiconductor temperature regulation, and to propose a control method and related equipment for water temperature regulation.

[0007] To achieve the above purpose, this application adopts the following technical solutions:

[0008] In a first aspect, the present application provides a control method for water temperature regulation. The control method is applied to an upper controller, which is communicatively connected to a lower controller and a user device. The control method includes the following steps:

[0009] S100, obtaining water tank temperature information, where the water tank temperature information includes the water temperature data of the circulating water tank and the water tank set temperature range in the most recent collection period;

[0010] S200, obtaining a water temperature regulation strategy according to the water tank temperature information. The water temperature regulation strategy includes a temperature regulation mode and a control signal corresponding to a temperature regulation device; the temperature regulation mode is a heating mode or a refrigeration mode, and the temperature regulation device includes a heating tube group and a semiconductor temperature regulation group;

[0011] S300, when the temperature regulation mode is the heating mode, using the control signal to control the heating tube group to heat and determining whether the double heating condition is satisfied during the heating process; the double heating condition means that the output amount of the control signal reaches a specified maximum output amount, or there is an open circuit in the heating tube group;

[0012] S400, if the judgment results within a first preset duration all satisfy the double heating condition, then simultaneously controlling the semiconductor temperature regulation chips in the semiconductor temperature regulation group to heat; otherwise, returning to S100.

[0013] The beneficial effects of this technical solution are as follows: By precisely controlling the operation of the heating tube group and the semiconductor temperature regulation group, while ensuring the water temperature regulation effect, it can optimize energy consumption and reduce unnecessary energy waste. By judging the double heating condition, it can avoid the situation that the predetermined temperature cannot be reached due to abnormal conditions such as an open circuit in the heating tube, enhancing the reliability of the control method. By simultaneously using the heating tube group and the semiconductor temperature regulation group, it can avoid the failure of water temperature regulation caused by a single heating tube failure, improving the fault tolerance of the control method. By monitoring the output amount of the control signal and simultaneously using the heating tube group and the semiconductor temperature regulation group when necessary, it can improve the safety of water temperature regulation and reduce safety accidents caused by equipment overheating.

[0014] In summary, through an intelligent control method, this technical solution meets the control requirements of a system combining a heating tube and semiconductor temperature regulation, and realizes reliable water temperature regulation.

[0015] In some possible implementation manners, the temperature regulation mode further includes a semiconductor pre-cooling mode for the semiconductor temperature regulation group; the control method further includes:

[0016] When the temperature control mode is the refrigeration mode, if the temperature control mode in the previous acquisition cycle is the heating mode and the double heating condition is satisfied, switch the semiconductor temperature control group to the semiconductor pre-cooling mode; there is no voltage across the thermoelectric cooler in the semiconductor pre-cooling mode, so that the temperature of the hot end of the thermoelectric cooler drops;

[0017] When the temperature of the semiconductor hot end is balanced with the ambient temperature, use the control signal to control the thermoelectric cooler in the semiconductor temperature control group to refrigerate.

[0018] The beneficial effects of this technical solution are as follows: The pre-cooling mode performs pre-treatment before formal refrigeration, reducing the energy efficiency loss caused by sudden temperature changes. At the same time, the pre-cooling mode helps to reduce the temperature fluctuations caused by rapid switching of the refrigeration mode. By reducing temperature fluctuations, the pre-cooling mode helps to extend the service life of the semiconductor temperature control group, enabling a smoother transition from the heating mode to the refrigeration mode.

[0019] In some possible implementation manners, the circulation water tank includes multiple regions, and a lower controller, multiple heating tubes, multiple thermoelectric coolers, and sensors are correspondingly arranged in each region; for each region, use the lower controller to save the water temperature data and region identifier in the corresponding region in the most recent acquisition cycle to the database, so that the water tank temperature information includes the region temperature data of multiple water tank regions and the region set temperature range corresponding to each region;

[0020] Obtaining the water temperature adjustment strategy according to the water tank temperature information includes:

[0021] Determine the temperature control mode of each region according to the region temperature data of each region and the region set temperature range corresponding to each region; when the determined temperature control modes of each region respectively include the heating mode and the refrigeration mode, use the mode with the largest quantity proportion in the heating mode and the refrigeration mode as the temperature control mode of the temperature control device;

[0022] Send the region temperature data and region set temperature range corresponding to each region to the lower controller and generate a control signal; among them, the region temperature data of the region corresponding to the mode with a small quantity proportion is the data updated according to the reference temperature data.

[0023] The beneficial effects of this technical solution are as follows: By setting independent control parameters for each region, it can more precisely meet the specific temperature requirements of different regions and improve the accuracy of temperature control. The upper controller intelligently determines the temperature control mode according to real-time data and preset parameters, reducing human intervention and improving the automation level. Since each region has an independent lower controller and sensor, it is easier to monitor and maintain the equipment status of each region, and problems can be discovered and solved in a timely manner.

[0024] In some possible implementation manners, the step of sending the area temperature data and the area set temperature range corresponding to each area to the lower controller and generating a control signal includes:

[0025] Taking a single non - adjacent area and multiple adjacent areas with a temperature adjustment mode different from the one with the largest quantity ratio as abnormal areas respectively. After excluding the area temperature data of each abnormal area, obtaining reference temperature data according to the area temperature data of non - abnormal areas, and using the reference temperature data as the area temperature data of the abnormal areas;

[0026] For each of the abnormal areas, using a counter to perform separate counting and incrementing by one. When the count value is greater than a first reference count value, sending a sensing signal test instruction to the corresponding lower controller and obtaining a corresponding response judgment strategy from the lower controller; when the count value is greater than the first reference count value or the count is not greater than the first reference count value within a predetermined period, resetting the count to zero;

[0027] Obtaining a response judgment result of the lower controller through the response judgment strategy, where the response judgment result is used to indicate whether the lower controller has completed a test response;

[0028] When the lower controller has not completed the test response, the upper controller generates a prompt message and sends it to the user device, where the prompt message is used to prompt an abnormality of the lower controller.

[0029] The beneficial effects of this technical solution are as follows: By identifying and processing abnormal areas, the influence of individual area abnormalities on the overall water temperature adjustment can be reduced, and the stability of temperature control can be improved. The introduction of the counter mechanism and the sensing signal test instruction provides the ability of fault self - diagnosis, which can timely detect and respond to the abnormal state of the lower controller, and avoid the generation of abnormal areas caused by non - signal fluctuations. Users can, through the prompt message, timely understand the abnormal state of the lower controller when excluding the abnormal areas caused by signal fluctuations, and the abnormal areas caused by signal fluctuations and other situations can be automatically processed without manual intervention.

[0030] In some possible implementation manners, the sensing signal test instruction further includes an instruction re - transmission parameter, where the instruction re - transmission parameter is used to indicate the interval duration and the number of re - transmissions of the sensing signal test instruction;

[0031] The method for obtaining the response judgment strategy includes:

[0032] Obtaining the preset number of re - transmissions and the preset interval duration of the sensing signal test instruction according to the instruction re - transmission parameter;

[0033] Obtaining the response judgment strategy according to the preset interval duration and the preset number of re - transmissions.

[0034] The beneficial effect of this technical solution is that it can deal with single instruction failures caused by communication interference or temporary failures by setting a retransmission mechanism, thereby improving the reliability of communication and judgment. The response judgment strategy allows the state of the lower controller to be judged within a reasonable number of attempts, avoiding overly frequent communications; at the same time, the real abnormality is identified after a certain number of failures, rather than mistakenly judging the lower controller abnormality due to a single communication failure, which also reduces the possibility of false alarms.

[0035] In summary, this technical solution improves communication reliability and fault detection accuracy by introducing command resending parameters and response judgment strategies, making the water temperature control method more stable and reliable.

[0036] In some possible implementations, the step of acquiring reference temperature data according to regional temperature data of a non-abnormal region includes:

[0037] For abnormal areas, the temperature data of all adjacent non-abnormal areas are used for interpolation to obtain the theoretical temperature value of the abnormal area;

[0038] When the standard deviation of the temperature values ​​corresponding to the temperature data of all non-abnormal areas is within a predetermined range, all theoretical temperature values ​​and the temperature data of all non-abnormal areas are summarized, and the arithmetic mean is calculated as the reference temperature data of each abnormal area; otherwise, the theoretical temperature value is used as the reference temperature data of the corresponding abnormal area.

[0039] The beneficial effect of this technical solution is that the theoretical temperature value of the abnormal area can be estimated more accurately by interpolating the temperature data of the adjacent non-abnormal area, thereby improving the accuracy of the overall temperature regulation. By processing the temperature data of the abnormal area in the above manner, the impact of the abnormality of individual areas on the overall water temperature regulation is reduced. The temperature data of the abnormal area can be automatically processed, reducing the need for manual intervention, thereby reducing maintenance costs; the reference temperature of the abnormal area is automatically adjusted according to the changes in the temperature data of the non-abnormal area, thereby improving the adaptability of the control method of water temperature regulation.

[0040] In some possible implementations, the sensors are divided into N groups according to regions, and the control method further includes:

[0041] The sensing data of each group of sensors is sent to the detection display device separately in a time-sharing manner and displayed to the user;

[0042] When the sensing data of at least one sensor in the nth group of sensors is not within the preset sensor detection range, the sensing data of the same group of sensors received by the detection display device is locked; wherein the sensor detection range is greater than the set temperature range of the water tank, N is an integer not less than 3, and n is a positive integer not greater than N.

[0043] The beneficial effects of this technical solution are as follows: By displaying the temperature data of different areas at different times, the operator can more accurately understand the temperature distribution of the entire water tank. The data locking mechanism enables quick identification and response to abnormal temperatures, helping the operator quickly locate the problem area, thereby shortening the fault diagnosis and repair time.

[0044] In some possible implementation manners, when the sensing data of at least one sensor in the nth group of sensors is not within the preset sensor detection range, locking the sensing data of the sensors in the same group received by the detection display device includes:

[0045] When it is obtained that at least one sensing data of the nth group of sensors is not within the sensor detection range, sensor timing is performed to obtain timing data;

[0046] When the timing data is greater than the first preset duration, locking the sensing data of the sensors in the same group received by the detection display device;

[0047] When a reset instruction sent by the user is received, clearing the timing data and using the detection display device to display the sensing data of the next group of sensors;

[0048] When the timing data is greater than the second preset duration, incrementing the count value of the nth group of sensors corresponding to the sensing data by one; the second preset duration is greater than the first preset duration;

[0049] When the count value of the nth group of sensors is greater than the second reference count value, generating a warning signal and sending it to the buzzer, and using the buzzer to give an abnormal warning to the user.

[0050] The beneficial effects of this technical solution are as follows: Responding promptly to abnormal sensor data, by locking abnormal data and generating warning signals, quickly reporting problems to the operator. By setting different preset durations, it is possible to distinguish between temporary and persistent abnormalities and reduce false alarms. The generation and sending of warning signals to different warning devices achieve hierarchical user warnings, from visual warnings to auditory warnings, ensuring that the operator can notice abnormal situations in a timely manner.

[0051] In a second aspect, the present application provides an electronic device, the electronic device includes a memory and at least one processor, the memory stores a computer program, and the at least one processor is configured to implement the method as described in any one of the first aspects when executing the computer program.

[0052] In a third aspect, the present application provides a constant temperature control system, which includes a constant temperature circulator. The constant temperature circulator includes a circulation water tank, an upper controller, a lower controller, a temperature adjustment device and a sensor arranged in the circulation water tank; the temperature adjustment device includes a heating tube group and a semiconductor temperature adjustment group;

[0053] The circulation water tank includes multiple areas, and each area corresponds to a lower controller, multiple heating tubes, multiple semiconductor temperature adjustment sheets and a sensor;

[0054] The system further includes a signal distribution device, which is arranged between the sensor and the detection and display device. The sensors are divided into N groups according to the areas, and the signal distribution device is used to separately send the sensing data of each group of sensors to the detection and display device in a time-sharing manner and display it to the user. Description of the Drawings

[0055] The present application will be further described below in conjunction with the drawings and embodiments.

[0056] Figure 1 It is a schematic flowchart of a control method for water temperature adjustment provided by an embodiment of the present application.

[0057] Figure 2 It is a schematic flowchart of a method for obtaining a water temperature adjustment strategy provided by an embodiment of the present application.

[0058] Figure 3 It is a schematic flowchart of a method for generating a control signal provided by an embodiment of the present application.

[0059] Figure 4 It is a schematic structural diagram of an electronic device provided by an embodiment of the present application.

[0060] Figure 5 It is a schematic structural diagram of a signal distribution device and a detection and display device provided by an embodiment of the present application. Detailed Embodiments

[0061] Next, in combination with the drawings and specific embodiments, the present application will be further described. It should be noted that, on the premise of no conflict, the following described embodiments or technical features can be combined with each other to form new embodiments at will. The following will illustrate the implementation procedures of the present application with reference to the drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in this specification. The present application can also be implemented or applied through other different specific implementation procedures. The details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present application. It should be understood that the preferred embodiments are only for explaining the present application, rather than limiting the protection scope of the present application. Embodiment 1

[0062] Refer to Figure 1 , Figure 1 which is a schematic flow chart of a control method for water temperature regulation provided by an embodiment of the present application.

[0063] The present embodiment provides a control method for water temperature regulation. The control method is applied to an upper controller, and the upper controller is communicatively connected to a lower controller and a user device. The control method includes the following steps:

[0064] S100, Obtain the water tank temperature information, where the water tank temperature information includes the water temperature data of the circulating water tank and the water tank set temperature range within the most recent collection period; the water tank temperature information can be obtained from a database, that is, the upper controller sends a query request to the database to obtain the water tank temperature information at a specific time point or time period;

[0065] S200, Obtain a water temperature regulation strategy according to the water tank temperature information; the water temperature regulation strategy includes a temperature regulation mode and a control signal corresponding to a temperature regulation device; the temperature regulation mode is a heating mode or a cooling mode, and the temperature regulation device includes a heating tube group and a semiconductor temperature regulation group;

[0066] S300, When the temperature regulation mode is the heating mode, use the control signal to control the heating tube group to heat and determine whether the double heating condition is satisfied during the heating process; the double heating condition means that the output amount of the control signal reaches the specified maximum output amount, or there is an open circuit in the heating tube group;

[0067] S400, If the judgment results within the first preset time period all satisfy the double heating condition, then simultaneously control the semiconductor temperature regulation chips in the semiconductor temperature regulation group to heat; otherwise, return to S100.

[0068] For the technical solution provided by the present embodiment, the upper controller first collects the temperature information of the water tank, including the water temperature of the circulating water tank and the temperature range set for the water tank. According to the collected temperature information, the lower controller is used to determine the water temperature regulation strategy. The water temperature regulation strategy includes selecting a suitable temperature regulation mode (heating or cooling) and corresponding control signals. The control signals are, for example, PID control signals or ordinary on-off signals. When it is a PID control signal, according to the difference between the water temperature of the circulating water tank and the water temperature of the water tank set (the water temperature closest to the water temperature of the circulating water tank), the output value is calculated using the PID formula to adjust the temperature regulation device. In this case, the PID control signal can be used to control a thyristor, and the thyristor, as a semiconductor switching device, can be used as an actuator to respond to the PID control signal to control the power acting on the temperature regulation device.

[0069] The temperature control device can be a heating tube group or a semiconductor temperature control group. Select one of the heating tube group and the semiconductor temperature control group as the target temperature control device, and send a control signal to this device to start adjusting the water temperature. In a specific application, when the temperature control mode is the heating mode, first use the control signal to control the heating tubes in the heating tube group to heat up, and monitor whether the output amount of the control signal reaches the specified maximum output amount, or whether there is an open circuit in the power supply circuit of the heating tubes in the heating tube group (the current data in the power supply circuit of the heating tubes is 0).

[0070] If, within a preset time, the output amount of the control signal continuously reaches the maximum output amount or there is an open circuit in the heating tubes, the semiconductor temperature control chips in the semiconductor temperature control group will be controlled to heat up simultaneously to enhance the heating effect and avoid partial open circuits in some heating tubes. If the maximum output amount is not reached, return to S100 to re-acquire the water tank temperature information and formulate a new adjustment strategy for cyclic control.

[0071] This embodiment has the following advantages: By precisely controlling the operation of the heating tube group and the semiconductor temperature control group, while ensuring the water temperature adjustment effect, it can optimize energy consumption and reduce unnecessary energy waste. Through the judgment of the dual heating conditions, it can avoid the situation where the predetermined temperature cannot be reached due to abnormal conditions such as open circuits in the heating tubes, enhancing the reliability of the control method. By using the heating tube group and the semiconductor temperature control group simultaneously, it can avoid the failure of water temperature adjustment caused by a single heating tube failure, improving the fault tolerance of the control method. By monitoring the output amount of the control signal and using the heating tube group and the semiconductor temperature control group simultaneously when necessary, it can improve the safety of water temperature adjustment and reduce safety accidents caused by equipment overheating.

[0072] In summary, this technical solution meets the control requirements of a system combining heating tubes and semiconductor temperature control through an intelligent control method, and realizes reliable water temperature adjustment.

[0073] Refer to Figure 2 , Figure 2 which is a schematic flowchart of a process for obtaining a water temperature adjustment strategy provided by an embodiment of this application.

[0074] In one embodiment, the circulation water tank includes multiple areas, and a lower controller, multiple heating tubes, multiple semiconductor temperature control chips, and sensors are correspondingly arranged in each area; for each area, the lower controller is used to save the water temperature data and area identifier of the corresponding area in the most recent acquisition period into the database, so that the water tank temperature information includes the area temperature data of multiple water tank areas and the area set temperature range corresponding to each area; the area identifier is used to indicate which acquisition area the water temperature data corresponds to, and the area identifier is, for example, a number, a letter, a symbol, or a combination of several of the above.

[0075] Obtaining a water temperature adjustment strategy according to the water tank temperature information includes:

[0076] S210. Determine the temperature adjustment mode for each area according to the area temperature data of each area and the area set temperature range corresponding to each area;

[0077] S220. When the temperature adjustment modes determined for each area respectively include a heating mode and a cooling mode, use the mode with the largest quantity proportion in the heating mode and the cooling mode as the temperature adjustment mode of the temperature adjustment device;

[0078] S230. Send the area temperature data and the area set temperature range corresponding to each area to the lower controller and generate a control signal; wherein, the area temperature data of the area corresponding to the mode with a small quantity proportion is the data updated according to the reference temperature data.

[0079] The circulating water tank is divided into multiple (water temperature adjustment) areas, and each area is equipped with a lower controller, multiple heating tubes, multiple semiconductor temperature adjustment chips and sensors. The lower controller is responsible for collecting the water temperature data and area identification in the corresponding area in the most recent acquisition cycle and saving them to the database, so that the water tank temperature information includes the area temperature data of multiple areas. In specific applications, the user pre-sets the corresponding area set temperature range for each area for the subsequent formulation of the temperature adjustment strategy, that is, the area set temperature ranges of different areas can be obtained in advance based on the consideration of historical data. The upper controller determines the overall temperature adjustment mode (heating or cooling) according to the area temperature data and the area set temperature range of each area. Due to the requirement for temperature control accuracy, it is possible that the area set temperature ranges of some areas are too strict, resulting in different temperature adjustment modes for some areas and most areas. Count the number of each mode and select the mode with the largest quantity proportion as the temperature adjustment mode of the entire temperature adjustment device. After determining the temperature adjustment mode, the upper controller sends the corresponding area temperature data to the lower controller and generates a control signal to adjust the working states of the heating tubes and the semiconductor temperature adjustment chips. At the same time, it can be considered that when the temperature adjustment mode is the heating mode, the heating tube group is used as the controlled device of the lower controller, and the semiconductor temperature adjustment group is used as the supplementary controlled device when the heating of the heating tube group is not ideal; when the temperature adjustment mode is the cooling mode, the semiconductor temperature adjustment group is used as the controlled device of the lower controller.

[0080] Among them, for the area corresponding to the mode with a small quantity proportion, its area temperature data will be updated according to the reference temperature data to ensure that the temperature adjustment of these areas does not deviate from the overall temperature adjustment strategy. In specific applications, when the temperature of the area corresponding to the water tank temperature information is less than the area set temperature range, the temperature adjustment mode is the heating mode; when the temperature of the area corresponding to the water tank temperature information is greater than the area set temperature range, the temperature adjustment mode is the cooling mode.

[0081] This embodiment has the following advantages: By setting independent control parameters for each area, it can more precisely meet the specific temperature requirements of different areas and improve the accuracy of temperature control. The upper controller intelligently determines the temperature adjustment mode based on real-time data and preset parameters, reducing human intervention and improving the automation level. Since each area has an independent lower controller and sensor, it is easier to monitor and maintain the equipment status of each area, and problems can be discovered and solved in a timely manner.

[0082] As an example, the circulating water tank can be evenly divided into two columns, each column including four consecutive areas of equal size, and a total of eight areas for water temperature adjustment are planned.

[0083] Refer to Figure 3 , Figure 3 which is a schematic flow diagram for generating a control signal provided by an embodiment of the present application.

[0084] In one embodiment, the step of sending the area temperature data and the area set temperature range corresponding to each area to the lower controller and generating a control signal includes:

[0085] S231, taking a single non-adjacent area and multiple adjacent areas that are different from the temperature adjustment mode with the largest quantity ratio as abnormal areas respectively. After excluding the area temperature data of each abnormal area, obtaining reference temperature data according to the area temperature data of non-abnormal areas, and using the reference temperature data as the area temperature data of the abnormal areas;

[0086] S232, for each abnormal area, using a counter to perform separate counting and incrementing by one. When the count value is greater than the first reference count value, sending a sensing signal test instruction to the corresponding lower controller and obtaining the corresponding response judgment strategy from the lower controller; when the count value is greater than the first reference count value or the count is not greater than the first reference count value within a predetermined period, the count is reset to zero;

[0087] S233, obtaining the response judgment result of the lower controller through the response judgment strategy, and the response judgment result is used to indicate whether the lower controller has completed the test response;

[0088] S234, when the lower controller has not completed the test response, the upper controller generates a prompt message and sends it to the user device, and the prompt message is used to prompt that the lower controller is abnormal. The user device is, for example, a mobile phone, a tablet or a laptop computer, etc., and the prompt message is, for example, a voice message, a text message or an APP pop-up message.

[0089] In this technical solution, regions different from the temperature adjustment mode with the largest quantity ratio are first identified. These regions are divided into two categories: single non - adjacent regions and multiple adjacent regions, which are collectively referred to as abnormal regions. Exclude the regional temperature data of the abnormal regions, and obtain the reference temperature data only based on the regional temperature data of the non - abnormal regions. The reference temperature data will be used as the regional temperature data of the abnormal regions to ensure that the temperature adjustment of the abnormal regions does not deviate from the overall temperature adjustment strategy.

[0090] For each abnormal region, a counter is used for individual counting. Whenever an abnormal situation occurs, the counter is incremented by one. When the count value of the counter is greater than a preset first reference count value, the upper - level controller sends a sensing signal test instruction to the corresponding lower - level controller and obtains a response judgment strategy from the lower - level controller to determine whether the lower - level controller has completed the test response. At the same time, if the count value is greater than the first reference count value, or if the counts within a predetermined period are not greater than the first reference count value, the counter will be reset to zero. If the lower - level controller fails to complete the test response, the upper - level controller will generate a prompt message and send it to the user device, indicating that there may be an abnormality in the lower - level controller.

[0091] Among them, the sensing signal test instruction is used to verify the working ability of the lower - level controller and contains test parameters. At the same time, the upper - level controller stores corresponding verification parameters. Obtain the response judgment result from the lower - level controller, and compare the verification parameters with the response judgment result to determine whether the test response has been completed. If the verification parameters and the response judgment result do not match, it can be considered that the test response has not been completed; otherwise, it is considered that the test response has been completed.

[0092] This embodiment has the following advantages: By identifying and processing abnormal regions, the influence of individual - region abnormalities on the overall water - temperature adjustment can be reduced, and the stability of temperature control can be improved. The introduction of the counter mechanism and the sensing signal test instruction provides the ability of self - diagnosis of faults, which can timely detect and respond to the abnormal state of the lower - level controller, and avoid the generation of abnormal regions caused by non - signal fluctuations. Users can, through the prompt message, timely understand the abnormal state of the lower - level controller when excluding the abnormal regions caused by signal fluctuations, and the abnormal regions caused by situations such as signal fluctuations can be automatically processed without manual intervention.

[0093] In one embodiment, the sensing signal test instruction further includes an instruction re - transmission parameter, and the instruction re - transmission parameter is used to indicate the interval duration and the number of re - transmissions of the sensing signal test instruction;

[0094] The ways to obtain the response judgment strategy include:

[0095] Obtain the preset number of re - transmissions and the preset interval duration of the sensing signal test instruction according to the instruction re - transmission parameter;

[0096] The response judgment strategy is obtained according to the preset interval time and the preset number of retransmissions.

[0097] In this technical solution, the upper controller sends a sensor signal test instruction to the lower controller in the abnormal area. The instruction contains an instruction retransmission parameter, which defines the retransmission interval and number of retransmissions of the sensor signal test instruction when no response is received. The acquisition of the response judgment strategy is based on the instruction retransmission parameter. Specifically, the response judgment strategy is determined according to the preset number of retransmissions and the preset interval length in the instruction retransmission parameter. According to the preset number of retransmissions and the preset interval length in the instruction retransmission parameter, it is determined how many times the sensor signal test instruction is sent within a certain period of time, and the time to wait before the next instruction is sent when no response is received. Within the framework of the preset interval length and the number of retransmissions, the upper controller will judge the status of the lower controller based on the received response. If the lower controller successfully responds within the preset number of retransmissions, it is considered that it is working normally; if it fails to respond within the preset number of times or the response data has problems, it is considered that it may be abnormal.

[0098] This embodiment has the following advantages: by setting a retransmission mechanism, it is possible to deal with a single instruction failure caused by communication interference or temporary failure, thereby improving the reliability of communication and judgment. The response judgment strategy allows the state of the lower controller to be judged within a reasonable number of attempts, thereby avoiding overly frequent communications; at the same time, the real abnormality is identified after a certain number of failures, rather than mistakenly judging that the lower controller is abnormal due to a single communication failure, thereby reducing the possibility of false alarms.

[0099] In summary, this technical solution improves communication reliability and fault detection accuracy by introducing command resending parameters and response judgment strategies, making the water temperature control method more stable.

[0100] In one embodiment, the step of obtaining reference temperature data based on regional temperature data of a non-abnormal region includes:

[0101] For abnormal areas, the temperature data of all adjacent non-abnormal areas are used for interpolation to obtain the theoretical temperature value of the abnormal area;

[0102] When the standard deviation of the temperature values ​​corresponding to the temperature data of all non-abnormal areas is within a predetermined range, all theoretical temperature values ​​and the temperature data of all non-abnormal areas are summarized, and the arithmetic mean is calculated as the reference temperature data of each abnormal area; otherwise, the theoretical temperature value is used as the reference temperature data of the corresponding abnormal area.

[0103] In this embodiment, for each abnormal area, the temperature data of all adjacent non-abnormal areas are used for interpolation processing to obtain the theoretical temperature value of the abnormal area. The standard deviation of the temperature values ​​corresponding to the temperature data of all non-abnormal areas is calculated to determine the consistency of the data. If the temperature data of the non-abnormal area is relatively consistent, all theoretical temperature values ​​and the temperature data of all non-abnormal areas are summarized, and the arithmetic mean is calculated as the reference temperature data of each abnormal area. If it is not within the predetermined range, it indicates that the data consistency is not strong, and the theoretical temperature value will be directly used as the reference temperature data of the corresponding abnormal area (each area).

[0104] This embodiment has the following advantages: by using the temperature data of the adjacent non-abnormal area for interpolation processing, the theoretical temperature value of the abnormal area can be estimated more accurately, thereby improving the accuracy of the overall temperature regulation. By processing the temperature data of the abnormal area in the above manner, the impact of the abnormality of individual areas on the overall water temperature regulation is reduced. The temperature data of the abnormal area can be automatically processed, reducing the need for manual intervention, thereby reducing maintenance costs; the reference temperature of the abnormal area is automatically adjusted according to the change of the temperature data of the non-abnormal area, thereby improving the adaptive ability of the control method of water temperature regulation.

[0105] The interpolation process may include: selecting the temperature data of all non-abnormal areas adjacent to the abnormal area as known data points; selecting the linear interpolation method to calculate the theoretical temperature value of the abnormal area based on the known data points. The calculated theoretical temperature value is used as the reference temperature data of the abnormal area for subsequent temperature adjustment.

[0106] The acquiring the response judgment strategy according to the preset interval duration and the preset number of retransmissions includes:

[0107] The number of retransmissions of the sensor signal test instruction and the interval between each retransmission are preset.

[0108] The upper controller sends a sensor signal test command to the lower controller, which is used to detect the working status of the lower controller. After sending the command, the upper controller starts waiting for the response signal from the lower controller.

[0109] If no response signal is received within the preset interval, it will be determined whether the test command needs to be resent according to the preset number of retransmissions. If necessary, the test command will be resent after the preset interval until the preset number of retransmissions is reached.

[0110] According to the preset number of retransmissions and interval length, it is determined when to stop retransmitting instructions and generate a response judgment result.

[0111] If a valid response signal is received within the preset number of retransmission attempts, it is considered that the lower-level controller is operating normally. If a valid response signal is not received, it is considered that there may be an abnormality in the lower-level controller.

[0112] In one embodiment, the temperature control mode further includes a semiconductor pre-cooling mode for the semiconductor temperature control group; the control method further includes:

[0113] When the temperature control mode is the cooling mode, if the temperature control mode in the previous acquisition cycle is the heating mode and the double heating condition is satisfied, the semiconductor temperature control group is switched to the semiconductor pre-cooling mode; there is no voltage across the two ends of the thermoelectric cooler in the semiconductor pre-cooling mode, so that the temperature of the hot end of the thermoelectric cooler drops;

[0114] When the temperature of the semiconductor hot end is balanced with the ambient temperature, the thermoelectric cooler in the semiconductor temperature control group is controlled to perform cooling using the control signal.

[0115] The working principle of the thermoelectric cooler is based on the Peltier effect, that is, a pair of units composed of a P-type semiconductor and an N-type semiconductor are placed in a circuit. When an electric current is applied, electron-hole pairs are generated at one end, the internal energy decreases, the temperature drops, and a cold end is formed; at the other end, due to the recombination of electron-hole pairs, the internal energy increases, the temperature rises, and a hot end is formed. By controlling the direction of the current, it can both cool and heat, achieving a temperature control stability better than 0.1°C.

[0116] In a specific application, the balance time can be preset to determine whether the temperature of the semiconductor hot end is balanced with the ambient temperature. When the execution time of the semiconductor pre-cooling mode meets the preset balance time, it is considered that the temperature of the semiconductor hot end is balanced with the ambient temperature.

[0117] When the temperature control mode is switched from the heating mode to the cooling mode, if the temperature control mode in the previous acquisition cycle is the heating mode and the double heating condition is satisfied, the semiconductor temperature control group is switched to the semiconductor pre-cooling mode. In the semiconductor pre-cooling mode, there is no voltage across the two ends of the thermoelectric cooler, so that the temperature of the hot end of the thermoelectric cooler drops. Once the temperature of the semiconductor hot end is balanced with the ambient temperature, the thermoelectric cooler in the semiconductor temperature control group is controlled to perform cooling using the control signal.

[0118] This embodiment has the following advantages: The pre-cooling mode performs pre-treatment before formal cooling, reducing the energy efficiency loss caused by sudden temperature changes. At the same time, the pre-cooling mode helps to reduce the temperature fluctuations caused by the rapid switching of the cooling mode. By reducing the temperature fluctuations, the pre-cooling mode helps to extend the service life of the semiconductor temperature control group, enabling a smoother transition from the heating mode to the cooling mode.

[0119] In one embodiment, the sensors are divided into N groups according to regions, and the control method further includes:

[0120] Send the sensing data of each group of sensors to the detection and display device separately at different times and display it to the user;

[0121] When the sensing data of at least one sensor in the nth group of sensors is not within the preset sensor detection range, lock the sensing data of the same group of sensors received by the detection and display device; wherein, the sensor detection range is greater than the set temperature range of the water tank, N is an integer not less than 3, and n is a positive integer not greater than N.

[0122] It can be considered that the sensors are divided into N groups, and each group corresponds to an area of the water tank. The data of each group of sensors will be sent to the detection and display device separately at different times and displayed to the user, that is, the user can see the temperature data of different areas at different times on the same interface. When the sensing data of at least one sensor in the nth group of sensors is not within the preset sensor detection range, lock the sensing data of this group of sensors so that the detection and display device displays the data of the locked sensor group. Among them, the sensor detection range is set to be greater than the set temperature range of the water tank. For example, the set temperature range of the water tank is [35°C, 37.5°C], and the corresponding temperature range of the sensor detection range is [34.5°C, 38°C].

[0123] This embodiment has the following advantages: By displaying the temperature data of different areas at different times, the operator can more accurately understand the temperature distribution of the entire water tank. The data locking mechanism enables quick identification and response to abnormal temperatures, helping the operator quickly locate the problem area, thereby shortening the fault diagnosis and repair time.

[0124] In one embodiment, when the sensing data of at least one sensor in the nth group of sensors is not within the preset sensor detection range, locking the sensing data of the same group of sensors received by the detection and display device includes:

[0125] When it is obtained that at least one sensing data of the nth group of sensors is not within the sensor detection range, perform sensor timing to obtain timing data;

[0126] When the timing data is greater than the first preset duration, lock the sensing data of the same group of sensors received by the detection and display device;

[0127] When a reset instruction sent by the user is received, clear the timing data and use the detection and display device to display the sensing data of the next group of sensors;

[0128] When the timing data is greater than the second preset duration, increment the count value of the nth group of sensors corresponding to the sensing data by one; the second preset duration is greater than the first preset duration;

[0129] When the count value of the nth group of sensors is greater than the second reference count value, a warning signal is generated and sent to the buzzer, and the buzzer is used to give an abnormal warning to the user.

[0130] In this embodiment, when it is detected that the sensing data of at least one sensor in the nth group exceeds the preset sensor detection range, the timing of this group of sensors is started, and the time from the detection of abnormal data is recorded to obtain timing data. If the timing data exceeds the first preset duration (such as 3 seconds, 5 seconds), the sensing data of the sensors in the same group received by the detection display device will be locked. After the operator discovers the locked sensing data through the detection display device, the equipment can be inspected and a reset instruction can be sent. After receiving the reset instruction, the timing data is cleared, and the data of the next group of sensors is displayed so that the operator can continue to monitor the sensing data of other sensors. The second preset duration (such as 4 seconds, 6 seconds) is used to give the operator more time to respond to the initial warning. If the timing data exceeds the second preset duration, it means that the operator has not performed a reset. It may be that the operator has not noticed the above-mentioned sensing data abnormality, or it may be that the operator has not solved the abnormality. In this case, the count value of the nth group of sensors is incremented by one. When the count value of the nth group of sensors exceeds the second reference count value, it is considered that there is a serious abnormality, a warning signal is generated and sent to the buzzer, and an abnormal warning is given to the operator through the buzzer.

[0131] This embodiment has the following advantages: It can respond to sensor data abnormalities in a timely manner. By locking abnormal data and generating warning signals, problems can be quickly reported to the operator. By setting different preset durations, temporary abnormalities and persistent abnormalities can be distinguished, reducing false alarms. The generation and sending of warning signals to different warning devices achieve the classification of user warnings, from visual warnings to auditory warnings, ensuring that the operator can notice abnormal situations in a timely manner.

[0132] As an example, a control method for water temperature adjustment is provided. The control method is applied to an upper controller, and the upper controller is communicatively connected to a lower controller and a user device. The control method includes the following steps:

[0133] P100, obtaining water tank temperature information, where the water tank temperature information includes the water temperature data of the circulating water tank and the water tank set temperature range in the most recent collection cycle; the circulating water tank includes multiple areas, and a lower controller, multiple heating tubes, multiple semiconductor temperature regulators, and sensors are correspondingly arranged in each area; for each area, the lower controller is used to save the water temperature data and area identifier of the corresponding area in the most recent collection cycle to a database, so that the water tank temperature information includes the area temperature data of multiple water tank areas and the area set temperature range corresponding to each area;

[0134] P200, determines the temperature adjustment mode of each area according to the area temperature data of each area and the area setting temperature range corresponding to each area;

[0135] When the determined temperature adjustment mode of each area includes a heating mode and a cooling mode, the mode with the largest number of heating modes and cooling modes is used as the temperature adjustment mode of the temperature adjustment device;

[0136] A single non-adjacent area and multiple adjacent areas that are different from the temperature adjustment mode with the largest number are respectively regarded as abnormal areas, and after excluding the regional temperature data of each of the abnormal areas, the temperature data of all adjacent non-abnormal areas are used for interpolation for the abnormal area to obtain the theoretical temperature value of the abnormal area;

[0137] When the standard deviation of the temperature values ​​corresponding to the temperature data of all non-abnormal areas is within a predetermined range, all theoretical temperature values ​​and the temperature data of all non-abnormal areas are aggregated, and the arithmetic mean is calculated as the reference temperature data of each abnormal area; otherwise, the theoretical temperature value is used as the reference temperature data of the corresponding abnormal area, and the reference temperature data is used as the regional temperature data of the abnormal area;

[0138] For each of the abnormal areas, a counter is used to count and add one separately. When the count value is greater than the first reference count value, a sensor signal test instruction is sent to the corresponding lower controller, and a corresponding response judgment strategy is obtained from the lower controller; when the count value is greater than the first reference count value or the count is not greater than the first reference count value within a predetermined period, the count is reset to zero;

[0139] Acquiring a response judgment result of the lower controller through the response judgment strategy, wherein the response judgment result is used to indicate whether the lower controller has completed the test response;

[0140] When the lower controller fails to complete the test response, the upper controller generates a prompt message and sends it to the user device, wherein the prompt message is used to prompt that the lower controller is abnormal;

[0141] The water temperature regulation strategy includes a temperature regulation mode and a control signal corresponding to the temperature regulation device; the temperature regulation mode is a heating mode or a cooling mode, and the temperature regulation device includes a heating tube group and a semiconductor temperature regulation group; the temperature regulation mode also includes a semiconductor pre-cooling mode for the semiconductor temperature regulation group;

[0142] P300, when the temperature adjustment mode is the heating mode, the control signal is used to control the heating of the heating tube assembly and whether a dual heating condition is met during the heating process; the dual heating condition means that the output of the control signal reaches a specified maximum output, or there is a circuit break in the heating tube assembly;

[0143] P400, if the judgment results within the first preset time length meet the dual heating conditions, then the semiconductor temperature regulating piece in the semiconductor temperature regulating group is controlled to heat at the same time; otherwise, return to P100;

[0144] P500, when the temperature adjustment mode is the cooling mode, if the temperature adjustment mode of the previous acquisition cycle is the heating mode and the dual heating condition is met, the semiconductor temperature adjustment group is switched to the semiconductor pre-cooling mode; there is no voltage at both ends of the semiconductor refrigeration plate in the semiconductor pre-cooling mode, so that the temperature of the hot end of the semiconductor refrigeration plate decreases; when the temperature of the hot end of the semiconductor is balanced with the ambient temperature, the control signal is used to control the semiconductor temperature adjustment plate in the semiconductor temperature adjustment group to perform cooling;

[0145] P600, the sensor data of each group of sensors are sent to the detection and display device separately in time and displayed to the user; when at least one sensor data of the nth group of sensors is not within the sensor detection range, the sensor is timed to obtain timing data; when the timing data is greater than the first preset time, the sensor data of the same group of sensors received by the detection and display device are locked; when a reset instruction sent by the user is received, the timing data is cleared, and the sensor data of the next group of sensors are displayed using the detection and display device; when the timing data is greater than the second preset time, the count value of the nth group of sensors corresponding to the sensor data is counted and added by one; the second preset time is greater than the first preset time; when the count value of the nth group of sensors is greater than the second reference count value, a warning signal is generated and sent to the buzzer, and the user is warned of the abnormality by the buzzer; wherein, the sensor detection range is greater than the set temperature range of the water tank, N is an integer not less than 3, and n is a positive integer not greater than N.

[0146] The sensor signal test instruction further includes an instruction resending parameter, and the instruction resending parameter is used to indicate the interval length and the number of resending times of the sensor signal test instruction resending;

[0147] Ways to obtain the response judgment strategy include:

[0148] Acquire the preset number of retransmissions and the preset interval length of the sensor signal test instruction according to the instruction retransmission parameter;

[0149] The response judgment strategy is obtained according to the preset interval time and the preset number of retransmissions.

[0150] It can be understood that in this example, the upper controller is responsible for formulating the overall water temperature regulation strategy, including determining the overall temperature regulation mode (heating or cooling) based on the temperature data of multiple regions and the set temperature range. It is also responsible for updating the temperature data of the abnormal region according to the data of the non-abnormal regions when an abnormal region is detected. Its control range covers all regions of the entire circulation water tank, and it is necessary to comprehensively consider the temperature data of all regions to make decisions.

[0151] The lower controller is responsible for the specific execution tasks of each region, including collecting the water temperature data within the region, generating control signals, and directly controlling the working states of the heating tubes and semiconductor temperature regulators within the region. Its control range is limited to a single region, and it is only responsible for the temperature control within the region.

[0152] In the technical solution provided in this example, each region of the circulation water tank is equipped with a lower controller, a heating tube, a semiconductor temperature regulator, and a sensor. The lower controller is responsible for saving the sensing data to the database. Then, the upper controller determines the temperature regulation mode of each region according to the region temperature data and the set temperature range. If the number of heating and cooling modes in the temperature regulation modes of each region is quite equal, the mode with the largest proportion is selected as the overall temperature regulation mode. For the abnormal region that is different from the majority mode, first exclude the temperature data of the region, and use the temperature data of the adjacent non-abnormal regions for interpolation to obtain the theoretical temperature value of the abnormal region. If the standard deviation of the temperature data of the non-abnormal regions is within the predetermined range, calculate the arithmetic mean of all the theoretical temperature values and the temperature data of the non-abnormal regions as the reference temperature data of the abnormal region. At the same time, monitor the abnormal region using a counter. When the count value exceeds the preset value, send a sensing signal test instruction to the lower controller and obtain the response judgment strategy. If the lower controller fails to complete the test response, the upper controller will generate a prompt message and send it to the user device, indicating that the lower controller may be abnormal. In addition, according to the change of the temperature regulation mode, control the semiconductor temperature regulation group to smoothly transition between the heating and cooling modes, and when switching between the heating and cooling modes, start the semiconductor pre-cooling to quickly respond to the temperature change. Finally, display the data of each group of sensors to the user in a time-sharing manner, and lock the data of the same group of sensors when abnormal data is detected, start timing and generate a warning signal if necessary, improving the response ability to abnormal situations. In specific applications, the on-site user can be understood as the operator, and the user using the user device can be understood as the manager; in some other specific applications, the two can be the same person.

[0153] In summary, considering the technical solution of combining heating tubes and semiconductor temperature regulation applicable to devices such as constant temperature circulators, a corresponding control method is provided, realizing reliable water temperature regulation. Embodiment 2

[0154] This embodiment provides an electronic device, and its specific embodiment is consistent with the embodiment described in the above Embodiment 1 and the achieved technical effects, and some contents will not be elaborated again.

[0155] The electronic device includes a memory and at least one processor. The memory stores a computer program, and the at least one processor is configured to execute the computer program to implement the steps of the method in Embodiment 1.

[0156] See Figure 4 , Figure 4 which is a schematic structural diagram of an electronic device provided by an embodiment of this application.

[0157] The electronic device 10 may include, for example, at least one memory 11, at least one processor 12, and a bus 13 connecting different platform systems.

[0158] The memory 11 may include a (computer) readable medium in the form of a volatile memory, such as a random access memory (RAM) 111 and / or a cache memory 112, and may further include a read-only memory (ROM) 113.

[0159] Among them, the memory 11 also stores a computer program, and the computer program can be executed by the processor 12, so that the processor 12 implements the steps of any of the above methods.

[0160] The memory 11 may further include a utility 114 having at least one program module 115. Such program modules 115 include, but are not limited to: an operating system, one or more application programs, other program modules, and program data. The implementation of a network environment may be included in each or some combination of these examples.

[0161] Correspondingly, the processor 12 can execute the above computer program and can also execute the utility 114.

[0162] The processor 12 may adopt one or more application-specific integrated circuits (ASICs, Application Specific Integrated Circuits), DSPs, programmable logic devices (PLDs, Programmable Logic Devices), complex programmable logic devices (CPLDs, Complex Programmable Logic Devices), field-programmable gate arrays (FPGAs, Field-Programmable Gate Arrays), or other electronic components.

[0163] The bus 13 can be one or more representing several types of bus structures, including a memory bus or a memory controller, a peripheral bus, an accelerated graphics port, a processor, or a local area bus of any bus structure using multiple bus structures.

[0164] The electronic device 10 can also communicate with one or more external devices such as a keyboard, a pointing device, a Bluetooth device, etc., and can also communicate with one or more devices capable of interacting with the electronic device 10, and / or communicate with any device (such as a router, a modem, etc.) that enables the electronic device 10 to communicate with one or more other computing devices. Such communication can be carried out through the input / output interface 14. Moreover, the electronic device 10 can also communicate with one or more networks (such as a local area network (LAN), a wide area network (WAN), and / or a public network, such as the Internet) through the network adapter 15. The network adapter 15 can communicate with other modules of the electronic device 10 through the bus 13. It should be understood that although not shown in the figure, other hardware and / or software modules can be used in combination with the electronic device 10 in practical applications, including but not limited to: microcode, device drivers, redundant processors, external disk drive arrays, RAID systems, tape drives, and data backup storage platforms, etc. Embodiment III

[0165] This embodiment provides a constant temperature control system for implementing the control method described in any one of Embodiment I.

[0166] The system includes a constant temperature circulator, and the constant temperature circulator includes a circulation water tank, an upper controller, a lower controller, a temperature adjustment device and a sensor arranged in the circulation water tank; the temperature adjustment device includes a heating tube group and a semiconductor temperature adjustment group; it can be considered that the heating tube group includes a plurality of heating tubes attached to the circulation water tank, and the semiconductor temperature adjustment group includes a plurality of semiconductor temperature adjustment chips attached to the circulation water tank;

[0167] The circulation water tank includes a plurality of areas, and each area corresponds to a lower controller, a plurality of heating tubes, a plurality of semiconductor temperature adjustment chips and a sensor;

[0168] The system further includes a signal distribution device, which is arranged between the sensor and the detection display device. The sensors are divided into N groups according to areas, and the signal distribution device is used to separately send the sensing data of each group of sensors to the detection display device at different times and display it to the user. For example, it includes consecutive first to tenth time periods. There are a total of eight groups of sensors. Separately at different times, for example, the sensing data of the first group of sensors is sent in the first time period, the sensing data of the second group of sensors is sent in the second time period, and so on. The sensing data of the eighth group of sensors is sent in the eighth time period, and the sensing data of the first group of sensors is sent in the ninth time period and so on in a cycle.

[0169] In the related art, a constant temperature circulator usually consists of a heat source, a cold source, a circulation pump, a temperature sensor, etc., and reduces energy consumption by precisely controlling the water temperature of the circulation water tank, thereby achieving the effect of energy conservation and emission reduction. Different from the related art, the technical solution protected by this application not only adopts a dual heating device, but also includes a corresponding control method to meet the control requirements of the combination of a heating pipe and semiconductor temperature regulation, realizing reliable water temperature regulation. The control method has been described in Embodiment 1, and some content will not be elaborated here.

[0170] As an example, the signal distribution device includes a signal distribution module and N relay modules (1# relay, 2# relay, 3# relay, etc.). The signal distribution module includes N output terminals respectively connected to the control terminals of N relays. One end of multiple normally open contacts of each relay corresponds to the sensor output terminal of a group of sensors one by one, and the other end is connected to the detection and display device. The signal distribution module includes a counter of CD4017 or CD4022, and also includes a clock signal output unit.

[0171] See Figure 5 , Figure 5 It is a schematic structural diagram of a signal distribution device and a detection and display device provided by an embodiment of this application.

[0172] The relay module includes 1# relay, 2# relay, and 3# relay, corresponding to the first group of sensors, the second group of sensors, and the third group of sensors respectively. The clock signal output unit is connected to the CL terminal of the counter to provide a clock signal. At the same time, a push-button switch is provided on the line between the reset terminal of the counter and the reset signal for pressing the switch to make it conduct during manual reset. When at least one sensing data of the nth group of sensors is not within the sensor detection range, the detection and display device generates a lock signal and sends it to the CLINH terminal of the counter through a wire to lock the output of the counter, and then lock the state of the currently working relay, so that the sensing data of the corresponding group of sensors is continuously sent to the detection and display device.

[0173] It should be noted that, in the embodiments of the present application, "at least one" refers to one or more, and "plurality" refers to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. The character " / " generally indicates that the objects associated before and after are in an "or" relationship. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b or c can represent: a, b, c, a and b, a and c, b and c or a and b and c, where a, b and c can be single or multiple. It is worth noting that "at least one" can also be interpreted as "one or more items".

[0174] The terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are configured to distinguish similar objects, and do not have to be configured to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising 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 devices.

[0175] This application is explained from the perspectives of purpose of use, effectiveness, progress and novelty, and has met the functional enhancement and usage requirements emphasized by the Patent Law. The above description and drawings of this application are only the preferred embodiments of this application, and are not intended to limit this application. Therefore, all structures, devices, features, etc. that are similar or identical to this application, that is, all equivalent replacements or modifications made in accordance with the scope of the patent application of this application, should fall within the scope of protection of the patent application of this application.

Claims

1. A constant temperature control system, used to implement a control method, characterized in that: The system includes a constant temperature circulator, which includes a circulating water tank, an upper controller, a lower controller, a temperature regulating device and a sensor arranged on the circulating water tank, wherein the upper controller is connected to the lower controller and the user equipment in communication; the temperature regulating device includes a heating tube group and a semiconductor temperature regulating group; The circulating water tank includes multiple areas, each area corresponds to a lower controller, multiple heating tubes, multiple semiconductor temperature regulating sheets and sensors; for each area, the lower controller is used to save the water temperature data and area identification of the corresponding area in the most recent collection cycle to the database, so that the water tank temperature information includes the regional temperature data of multiple water tank areas and the regional set temperature range corresponding to each area; The system further includes a signal distribution device, the signal distribution device is arranged between the sensor and the detection display device, the sensors are divided into N groups according to the region, the signal distribution device is used to send the sensing data of each group of sensors to the detection display device separately in time division and display it to the user; The signal distribution device includes a signal distribution module and N relay modules, wherein the N output ends of the signal distribution module are respectively connected to the control ends of the N relays, one end of the multiple groups of normally open contacts of each relay respectively corresponds to the sensor output ends of a group of sensors, and the other end is connected to the detection display device; when at least one sensor data of the nth group of sensors is out of the sensor detection range, the detection display device generates a locking signal and sends it to the CLINH end of the counter through a wire, locks the output of the counter, and then locks the state of the currently working relay, so that the sensor data of the corresponding group of sensors are continuously sent to the detection display device; The control method is applied to a host controller, and the control method comprises the following steps: S100, obtaining water tank temperature information, wherein the water tank temperature information includes water temperature data of a circulating water tank in a most recent collection cycle and a set temperature range of the water tank; S200, obtaining a water temperature adjustment strategy according to the water tank temperature information, wherein the water temperature adjustment strategy includes a temperature adjustment mode and a control signal corresponding to a temperature adjustment device; the temperature adjustment mode is a heating mode or a cooling mode, and the temperature adjustment device includes a heating tube group and a semiconductor temperature adjustment group; S300, when the temperature adjustment mode is the heating mode, the control signal is used to control the heating tube assembly to heat and whether a dual heating condition is met during the heating process; the dual heating condition means that the output of the control signal reaches a specified maximum output, or there is a circuit break in the heating tube assembly; S400, if the judgment results within the first preset time period all meet the dual heating conditions, then simultaneously control the semiconductor temperature regulating sheets in the semiconductor temperature regulating group to heat; otherwise, return to S100; The control method further comprises: The sensing data of each group of sensors is sent to the detection display device separately in a time-sharing manner and displayed to the user; When the sensing data of at least one sensor in the nth group of sensors is not within the preset sensor detection range, the sensing data of the same group of sensors received by the detection display device is locked; wherein the sensor detection range is greater than the set temperature range of the water tank, N is an integer not less than 3, and n is a positive integer not greater than N; The step of obtaining a water temperature adjustment strategy according to the water tank temperature information includes: Determine the temperature adjustment mode of each area according to the area temperature data of each area and the area setting temperature range corresponding to each area; When the determined temperature control mode of each area includes a heating mode and a cooling mode, the mode with the largest number of heating modes and cooling modes is used as the temperature control mode of the temperature control device; when the temperature control mode is the heating mode, the heating tube group is used as the controlled device of the lower controller, and the semiconductor temperature control group is used as a supplementary controlled device when the heating of the heating tube group is not ideal; The regional temperature data and the regional set temperature range corresponding to each region are sent to the lower controller and a control signal is generated; wherein the regional temperature data of the region corresponding to the mode with a small number is data updated according to the reference temperature data; The sending of the regional temperature data and the regional set temperature range corresponding to each region to the lower controller and generating a control signal includes: A single non-adjacent area and multiple adjacent areas that are different from the temperature control mode with the largest number are respectively regarded as abnormal areas. After excluding the regional temperature data of each of the abnormal areas, the temperature data of all adjacent non-abnormal areas are used for interpolation to obtain the theoretical temperature value of the abnormal area. When the standard deviation of the temperature values ​​corresponding to the temperature data of all non-abnormal areas is within a predetermined range, all theoretical temperature values ​​and the temperature data of all non-abnormal areas are aggregated, and the arithmetic mean is calculated as the reference temperature data of each abnormal area. Otherwise, the theoretical temperature value is used as the reference temperature data of the corresponding abnormal area, and the reference temperature data is used as the regional temperature data of the abnormal area. For each of the abnormal areas, a counter is used to count and add one separately. When the count value is greater than the first reference count value, a sensor signal test instruction is sent to the corresponding lower controller, and a corresponding response judgment strategy is obtained from the lower controller; when the count value is greater than the first reference count value or the count is not greater than the first reference count value within a predetermined period, the count is reset to zero; Acquiring a response judgment result of the lower controller through the response judgment strategy, wherein the response judgment result is used to indicate whether the lower controller has completed the test response; When the lower controller does not complete the test response, the upper controller generates prompt information and sends it to the user equipment, where the prompt information is used to prompt that the lower controller is abnormal.

2. The constant temperature control system according to claim 1, characterized in that: The temperature adjustment mode also includes a semiconductor pre-cooling mode for the semiconductor temperature adjustment group; the control method also includes: When the temperature adjustment mode is the cooling mode, if the temperature adjustment mode of the previous acquisition cycle is the heating mode and the dual heating condition is met, the semiconductor temperature adjustment group is switched to the semiconductor pre-cooling mode; there is no voltage at both ends of the semiconductor refrigeration plate in the semiconductor pre-cooling mode, so that the temperature of the hot end of the semiconductor refrigeration plate decreases; When the temperature of the semiconductor hot end is balanced with the ambient temperature, the control signal is used to control the semiconductor temperature regulating sheet in the semiconductor temperature regulating group to perform cooling.

3. The constant temperature control system according to claim 2, characterized in that: The sensor signal test instruction further includes an instruction resending parameter, and the instruction resending parameter is used to indicate the interval length and the number of resending times of the sensor signal test instruction resending; Ways to obtain the response judgment strategy include: Acquire the preset number of retransmissions and the preset interval length of the sensor signal test instruction according to the instruction retransmission parameter; The response judgment strategy is obtained according to the preset interval time and the preset number of retransmissions.

4. The constant temperature control system according to claim 1, characterized in that: When the sensing data of at least one sensor in the nth group of sensors is not within the preset sensor detection range, locking the sensing data of the sensors in the same group received by the detection display device comprises: When at least one sensing data of the nth group of sensors is not within the sensor detection range, the sensor timing is performed to obtain timing data; When the timing data is greater than a first preset time length, the sensing data of the same group of sensors received by the detection display device is locked; When receiving a reset command sent by the user, the timing data is reset to zero, and the sensing data of the next group of sensors is displayed using the detection display device; When the timing data is greater than a second preset time length, the count value of the nth group of sensors corresponding to the sensing data is counted plus one; the second preset time length is greater than the first preset time length; When the count value of the nth group of sensors is greater than the second reference count value, a warning signal is generated and sent to the buzzer, and the buzzer is used to warn the user of the abnormality.

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