CN110837265A - On-spot atmospheric control device opens and stops calibration system - Google Patents
On-spot atmospheric control device opens and stops calibration system Download PDFInfo
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- CN110837265A CN110837265A CN201911133537.4A CN201911133537A CN110837265A CN 110837265 A CN110837265 A CN 110837265A CN 201911133537 A CN201911133537 A CN 201911133537A CN 110837265 A CN110837265 A CN 110837265A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D27/00—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00
- G05D27/02—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00 characterised by the use of electric means
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- G—PHYSICS
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- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
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Abstract
The invention discloses a start-stop checking system of a field temperature and humidity control device, which comprises: the environment box is used for simulating the working environment of the temperature and humidity sensor in the temperature and humidity control device; the control box is used for detecting and controlling the temperature and the humidity in the environment box; when the system is used for checking, a temperature and humidity sensor of a temperature and humidity control device to be checked is placed in an environment box, the temperature and the humidity in the environment box are controlled by a control box to reach a protection value or a set value of the temperature and humidity control device to be checked, temperature and humidity data obtained by detection of the temperature and humidity control device to be checked are compared with temperature and humidity data obtained by detection of a checking system, and whether the temperature and humidity sensor of the temperature and humidity control device to be checked is normal or not is judged based on a comparison result; the system can quickly, efficiently and conveniently complete the start-stop verification of the field temperature and humidity control device, and has accurate system verification and higher precision.
Description
Technical Field
The invention relates to the field of heating dehumidification devices and industrial air conditioner calibration, in particular to an external loop of an industrial air conditioner (dehumidifier) and a device for calibrating an automatic start-stop setting value and a temperature and humidity sensor.
Background
Heating and dehumidifying devices and industrial air conditioners are widely used in places such as transformer substation terminal boxes, high-voltage switch cabinets, high-voltage rooms and the like. The quality of the heating and dehumidifying device and the industrial air conditioner is directly related to the running environment of the equipment, and the start and stop of the device are usually controlled by a temperature and humidity controller. The correct start and stop of the device can better ensure the healthy operation of electrical equipment.
At present, the on-site temperature and humidity control device starting and stopping verification in the market is almost realized by no means; particularly, after a temperature and humidity control device with an automatic start-stop function is set to a fixed value, whether the device can be automatically started and stopped or not is not known, and whether a set numerical value of the start-stop function is a corresponding set value or not is judged; if any part of the temperature and humidity sensor, the external loop of the dehumidifier or the temperature and humidity controller device is abnormal, the start and stop functions of the device can be directly influenced. Particularly, the detection side of the refrigeration scheme generally comprises a dislocation detection method, a liquefied nitrogen refrigeration method, a compressor refrigeration method and the like, and has the problems of inconvenience in carrying, large size, inconvenience in operation, long detection time and the like.
Disclosure of Invention
The purpose of the invention is as follows: the problem that no mature product exists in the market due to the fact that the on-site temperature and humidity control device is difficult to start and stop for verification is solved; the problem of traditional refrigeration scheme can't examine temperature and humidity survey sensor fast, high-efficient, conveniently is solved.
In order to achieve the above object, the present invention provides a calibration system for starting and stopping a field temperature and humidity control device, wherein the calibration system comprises:
the environment box is used for simulating the working environment of the temperature and humidity sensor in the temperature and humidity control device; the control box is used for detecting and controlling the temperature and the humidity in the environment box; when the system is used for checking, a temperature and humidity sensor of the temperature and humidity control device to be checked is placed in an environment box, the temperature and the humidity in the environment box are controlled to reach a protection value or a set value of the temperature and humidity control device to be checked through a control box, temperature and humidity data obtained by detection of the temperature and humidity control device to be checked are compared with temperature and humidity data obtained by detection of a checking system, and whether the temperature and humidity sensor of the temperature and humidity control device to be checked is normal or not is judged based on a comparison result; if the data difference value of the temperature and the humidity sensor exceeds a preset range, judging that the temperature and humidity sensor of the temperature and humidity control device to be verified is abnormal; and if the data difference value of the temperature and humidity control device to be verified is within the preset range and the temperature and humidity control device to be verified does not execute the action, judging that the temperature and humidity control device to be verified has a fault.
The design principle of the invention is as follows: the system simulates the use environment of the sensor by depending on the semiconductor refrigerator and the heater, can set the environmental temperature and the humidity according to the requirements of users, quickly reaches the protection value or the set value of the temperature and humidity control device on the temperature and the humidity, and judges whether the sensor is normal or not by comparing the temperature and humidity data of the temperature and humidity control device with the temperature and humidity data of the detection system. If the data difference between the two is larger or exceeds the temperature difference range, the performance of the sensor is reduced or abnormal; if the difference between the temperature and the humidity is not large or within the error range and the temperature and humidity control device does not execute the action, the fault of the temperature and humidity control device is indicated. The detection system adopts the semiconductor to refrigerate or heat, and has the characteristics of bidirectional work of heating and refrigerating, no vibration, no noise, high reliability, easy installation, small thermal inertia and the like. And a special environment box body is arranged, and materials or measures such as refrigeration or heating are not needed additionally. The user only needs to set temperature and humidity parameters to realize intelligent control, the detection purpose is achieved, the maintenance cost is greatly reduced, and the convenience of maintenance is improved.
Preferably, the environment box comprises two mutually independent heating and humidifying boxes and a refrigerating box, a special device for heating, humidifying and dehumidifying and a sensor for monitoring the temperature and humidity data of the environment box are arranged in the heating and humidifying boxes, and a special device for refrigerating and a sensor for monitoring the temperature and humidity data of the environment box are arranged in the refrigerating box.
Preferably, a plurality of different types of temperature and humidity sensor interfaces are reserved on the control box, the control box is connected with a temperature and humidity display, the temperature and humidity sensor interfaces are used for connecting the temperature and humidity sensor to be verified, data measured by the temperature and humidity sensor to be verified are compared with data displayed by the temperature and humidity display, and the precision of the temperature and humidity sensor to be verified is verified based on a comparison result.
Preferably, the heating box and the refrigerating box adopt heat-insulating synthetic stone as a base material.
Preferably, the control box includes: the intelligent control system comprises a power supply unit, a control unit, a display unit and an aerial plug-in, wherein mains supply input from the outside is converted into direct current through the power supply unit to provide required power electricity for other units in a control box and an environment box, and the control unit reads temperature and humidity data in the environment box in real time through an IIC (inter-integrated Circuit) and controls the environment box to work; the control unit is communicated with the display unit in real time, and on one hand, the display unit displays the temperature and humidity data of the environmental box in real time; on the other hand, based on the control instruction input by the display unit, the control unit controls the temperature and humidity state in the environment box in real time, and the control box is connected with the environment box through the aviation plug-in accessory.
Preferably, the control box is provided with a power input interface, a safety interface, a power switch, a power indicator, a comprehensive parameter display and a cable box; the power input interface adopts a three-core socket; the fuse interface adopts a 3A fuse; the power supply indicator lamp is used for indicating the power supply state of the control box; the interface aerial plug adopts Y28M-19 TK; the cable box is exclusively used for storing aerial plug cables and power cables.
Preferably, the heating and humidifying device is connected with the control unit through an aerial plug, heat-preservation foam is filled in the heating and humidifying device, and the heating and humidifying device is provided with a heating semiconductor, a humidifying spraying nozzle, a water tank and a fan; in the heating, humidifying, dehumidifying and cooling processes, the fan starts to work, so that the temperature and humidity difference in the heating and humidifying box is controlled within a preset range.
Preferably, the refrigeration box is connected with the control box through an aerial plug cable, a refrigeration semiconductor is arranged in the refrigeration box, and the refrigeration semiconductor is divided into a cold end and a hot end; the hot end of the refrigeration semiconductor is connected with a brass radiator, and two air duct openings are adopted to form an independent unique heat dissipation air duct; the cold end of the refrigeration semiconductor is connected with the radiator and is arranged in the heat-insulating foam to isolate the energy exchange between the refrigeration sheet and the external environment; a temperature sensor and a fan are arranged in the space of the cold end of the refrigeration semiconductor, and when refrigeration is started, the fan works to control the temperature difference of the internal environment of the refrigeration box within a preset range.
Preferably, the heating function of the heating and humidifying box adopts a heating sheet, and the heating is realized through PID control; the control box reads temperature data in real time through the temperature sensor, and outputs the amount of duty ratio change through a PID algorithm to control the heating sheet to stably heat; the heating and humidifying box realizes humidification through PID control.
Preferably, the heating and humidifying box performs humidification by ultrasonic oscillation to form water mist, so that humidification is realized, and the heating and humidifying box intermittently sprays the water mist during humidification.
Preferably, when the display interruption of the timer is triggered, the control box processes the temperature and humidity data and sends the temperature and humidity data to the display through the serial port for the user to check; when the interrupt of the timer IIC is triggered, the control box controls the IIC to read the data of the temperature and humidity sensor, and the data are used as global variables to provide original data for other functional modules; when the interruption of the serial port of the man-machine interaction is triggered, the control box analyzes the received data, judges the operation of a user, quits the interruption, continues to process the original temperature and humidity data, obtains a control mode and time for controlling heating, humidification or refrigeration through a PID algorithm, and stops adjusting until the temperature and humidity value of the environment box is consistent with a set value.
Among them, important descriptions are given to the system of the present invention:
1. the cooling function of the invention adopts the semiconductor refrigeration piece, the semiconductor refrigeration piece has small volume, but the refrigeration efficiency is generally about 60 percent (the energy efficiency ratio is 0.6), the refrigeration efficiency is low, the heat generated by the hot surface is added with the heat absorbed from the cold surface besides the power consumption of the refrigeration piece, the heating value is extremely large, the temperature in the low-temperature box is reduced to below 5 ℃ under the condition of the room temperature of 30 ℃, the engineering difficulty is large, and the following measures are adopted: firstly, adopt copper radiator to at radiator both ends design wind channel, blow with high-speed fan and form the convection current, improve the radiating efficiency. And secondly, a fan is arranged in the low-temperature box to form air circulation, so that the cooling speed is increased. Thirdly, the rapid cooling is realized through the cold and hot isolation of the physical end. In the aspect of physical isolation, hard foam polyurethane and a nanometer thermal insulation board are used, and the cold end is not influenced by an external high-temperature environment through double-layer thermal insulation. Fourthly, the semiconductor refrigerator is controlled through the microprocessor, and the refrigerator is kept in a stable refrigeration state through an algorithm. Fifthly, sealing gaps of all parts by using 704 silica gel, and reducing the temperature in the low-temperature box to be below 5 ℃ within 5 minutes at the room temperature of 30 ℃ by using the method.
2. The temperature rising function of the invention adopts a high-power heating sheet, and the rapid temperature rise is realized through PID control. The microprocessor reads temperature data in real time through the sensor, and outputs the amount of duty ratio change through a PID algorithm to control the heating sheet to stably heat. The heating device can raise the temperature of the heating and humidifying device from 25 ℃ to 60 ℃ within 1 minute.
3. The invention adopts ultrasonic oscillation for humidification to form water mist, thereby realizing rapid humidification. Similar to heating, the invention also realizes rapid humidification through PID control. Because the humidification can form the water that congeals always in the device, for solving this problem, adopt ultrasonic oscillator in the device, will store water and turn into tiny particle water smoke, simultaneously, through algorithm intermittence ground blowout water smoke, both guaranteed quick humidification, also prevent to form the large tracts of land and congeal water.
By the method, various temperature and humidity environments can be quickly simulated in the formed portable constant temperature and humidity box.
One or more technical solutions provided by the present application have at least the following technical effects or advantages:
tests show that the detection system can finish refrigeration within 5 minutes, can reach about 0 ℃ within 10 minutes, and has shorter heating and humidifying time which is not more than 1 minute. Because the cooling and the heating can be measured simultaneously, the measuring time of the two sets of sensors is not more than 5 minutes. In the aspect of precision, the detection system has the maximum temperature detection precision of 0.1 degrees and the maximum humidity precision of 1 percent. The detection of the sensor is completed in a short time by adopting methods such as physical isolation, intelligent control technology and the like, so that the aim of convenient maintenance is fulfilled.
The detection system adopts the control of local humidity to realize the start-stop function and the verification of the humidity controller and a loop thereof. In a local environment, a (another humidity sensor and a display for high-precision verification) device for verifying the accuracy of the sensor is used. Taking humidification and dehumidification as an example, a place near a sensor to be detected is humidified until an industrial air conditioner of a dehumidifier is started. The humidifying device is convenient to carry and use in a dry battery direct current power supply mode. The product adopts a direct current power supply to start the oscillating piece to humidify the local environment, and achieves quick start. When dehumidifying, the local humidity is reduced by using a fan to accelerate the air flow over the sensor surface. And meanwhile, the temperature and humidity probe of the device for checking is utilized to check the humidity of the measured humidity device and check the accuracy of the sensor.
The detection system can be used for verifying the terminal box, the mechanism box and the high-voltage chamber environment temperature and humidity device in the operation and maintenance personnel periodic test switching work and checking the temperature and humidity device in the switch cabinet when the high-voltage switch cabinet is overhauled.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention;
FIG. 1 is a schematic block diagram of a system of the present invention;
FIG. 2 is a functional block diagram of a control unit in the present invention;
FIG. 3 is a block diagram of the system software flow of the present invention;
FIG. 4 is a schematic diagram of the cooling time versus temperature for the test cases of the present invention;
FIG. 5 is a graph showing the relationship between heating time and temperature in the test case of the present invention;
FIG. 6 is a schematic diagram showing the relationship between humidification time and humidity in the test cases of the present invention.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflicting with each other.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described and thus the scope of the present invention is not limited by the specific embodiments disclosed below.
The overall scheme is as follows:
the detection system mainly comprises a control box, a heating and humidifying box and a refrigerating box which are independent, wherein the heating and humidifying box and the refrigerating box are collectively called as an environment box. The control box mainly comprises a power supply unit, a control unit, a display unit and an air-insertion accessory, and the schematic block diagram of the control box is shown in fig. 1. Wherein, the control unit is the core component of the detection system. The environment box is internally provided with a special device for heating or refrigerating or humidifying or dehumidifying and a sensor for monitoring the temperature and humidity data of the environment box.
The external input commercial power is converted into direct current through the power supply unit, and the required power electricity is provided for other units and the environment box. The control unit takes a microprocessor as a core, reads temperature and humidity data in real time through the IIC, and intelligently controls the environment box to work; meanwhile, the control unit is communicated with the touch display in real time, and on one hand, the display displays the temperature and humidity data of the environmental chamber in real time; on the other hand, the man-machine interaction with the user is realized, and the temperature and humidity state in the environment box can be set quickly.
A system unit:
the detection system adopts STM32 microprocessor of ST company, uses IO, AD, IIC and UART four peripherals to cooperate with each other to realize intelligent control, and the functional block diagram is shown in figure 2. The microprocessor realizes man-machine interaction through UART (serial port communication). The user sets up environment incasement temperature or humidity requirement through touch display, and microprocessor receives the instruction of setting for that the user assigned after, through IO mouth output PWM ripples control environment incasement semiconductor's actuating mechanism, can realize operations such as heating, refrigeration, humidification. Meanwhile, the microprocessor collects temperature and humidity data of the environment box in real time through the IIC, the intelligent control execution mechanism enables the temperature and humidity in the environment box to quickly reach a set value for use, and the collected data are sent to the display to be displayed at a rate of 1S/time.
On the other hand, the microprocessor monitors the voltage and current information of the power supply in real time through an analog-to-digital (AD) converter, and ensures that the detection system works in a normal state.
The system adopts a temperature sensor with the precision of 0.1 ℃ and a humidity sensor with the precision of 0.1 percent RH, and the precision of the system is superior to that of the measured sensor, so the system can also be used for correcting the precision of the measured sensor.
Structural design:
the detection system adopts a portable design and comprises a control box, a heating and humidifying box and a refrigerating box, wherein the heating and humidifying box and the refrigerating box are collectively called an environment box. The control box needs necessary commercial power input, and the output is connected with the environment box through an aviation plug. The heating box and the refrigerating box adopt heat-insulating synthetic stone as raw materials, and the good non-heat-conducting property of the heat-insulating synthetic stone can ensure that the temperature in the refrigerating box and the heating box is not interacted with the ambient temperature.
The control box is provided with a power input interface, a safety interface, a power switch, a power indicator light, a comprehensive parameter display and a cable box. The power input interface adopts a three-core socket, has the function of grounding, and ensures the safety and reliability of power utilization; the fuse interface adopts a 3A fuse, so that the equipment is prevented from being damaged by overlarge current; the power supply indicator lamp is used for indicating the power supply state of the control box; the display adopts a 45-degree outward chamfer angle, so that the appearance is attractive and elegant; the interface aerial plug adopts Y28M-19TK, so that the system is convenient, reliable and firm; the cable box is exclusively used for storing aerial plug cables and power cables.
The heating and humidifying device is connected with the control unit through the aerial plug, heat preservation foam is filled in the heating and humidifying device, and the heating and humidifying device is provided with a heating semiconductor, a humidifying spraying nozzle, a water tank and a fan. In the processes of heating, humidifying, dehumidifying and cooling, the fan starts to work, the temperature and the humidity of the whole environment are basically the same, and the temperature and the humidity of the measured sensor are the same as those of the sensor in the box body.
The refrigeration case is connected with the control box through the aerial plug cable, and the internal device has a semiconductor and is divided into two parts of a cold end and a hot end. The semiconductor hot end is connected with the brass radiator, and two air duct openings are adopted to form an independent unique radiating air duct. The cold end is also connected with the radiator and is arranged in the heat-insulating foam to isolate the energy exchange between the refrigerating sheet and the external environment. Be provided with temperature sensor and little fan in the cold junction space, when beginning to refrigerate, fan work makes the cold junction space equal basically, ensures that the sensor of being surveyed is the same with box internal sensor collection temperature.
Designing software:
referring to fig. 3, fig. 3 is a software flow diagram of the system, and the detection system relies on embedded programming, and adopts an STM32 microprocessor to configure external devices such as IO, ADC, UART, IIC, and the like, so as to realize intelligent automatic control and detection. In the software execution process, the microprocessor adopts an interrupt mode, so that the real-time response speed can be improved, and the code execution efficiency can also be improved. The microprocessor waits for an interrupt to be triggered after the initialization is completed. The detection system has three types of interrupt including timer display interrupt, timer IIC read interrupt and serial port interrupt, and after some interrupt is detected, the microprocessor will execute corresponding operation.
The software of the detection system is designed as follows: when the display interruption of the timer is triggered, the microprocessor processes the temperature and humidity data and sends the temperature and humidity data to the display through the serial port for the user to check; when the interrupt of the timer IIC is triggered, the microprocessor controls the IIC to read the data of the temperature and humidity sensor, and the data are used as global variables to provide original data for other functional modules; when the interruption of the serial port of the man-machine interaction is triggered, the microprocessor analyzes the received data, judges the operation of a user, quits the interruption, continues to process the original temperature and humidity data, obtains a control mode and time for controlling heating, humidification or refrigeration through a PID algorithm, and stops adjusting until the temperature and humidity value of the environment box is consistent with a set value.
According to the invention, the heating, dehumidifying and humidifying functions are integrated into one structural body, the cooling function is set as one structural body, the control unit is set as an independent box body, the interference and influence of the ambient temperature and humidity on the system are reduced, the mutual influence of the heating, cooling and other processes is also reduced, and meanwhile, the time for realizing the independent function is greatly shortened. Through the design, the start-stop condition of the equipment can be judged after the temperature and humidity control device with the automatic start-stop function sets a fixed value, and the set value of the start-stop function is verified.
The system can quickly, efficiently and conveniently complete the start-stop verification of the field temperature and humidity control device, and has accurate system verification and higher precision.
The invention is realized by taking the on-site maintenance of the temperature and humidity control device for starting and stopping verification as an example, and can be widely applied to transformer substation terminal boxes, high-voltage switch cabinets, high-voltage rooms and other places.
The verification scheme comprises the following steps: after the power is supplied to the control device and the detection system, a power switch of the detection system is turned on, and after the system self-inspection is finished, a user can select the functions of refrigeration, heating, humidification and the like through a touch screen. The sensor to be detected is placed in an environment box, after a sealing cover is fixed, refrigeration/heating/humidification parameters are set, after the setting is finished, the data of the detection system and the data of the sensor are recorded and compared every 30 seconds, and under the worst condition, the error of the data is not more than 5%. When the temperature and the humidity in the detection system reach a set value, the control device starts the heating or refrigerating function and the like. Through the scheme, the performance of the sensor can be judged, and whether the start and stop of the control device are normal can also be judged.
With the detection system, referring to fig. 4-6, the operations of refrigeration, heating, humidification and dehumidification can be completed within 5 minutes, the detection of the device to be detected can be rapidly completed, and the online rapid maintenance is facilitated. The project effects provided by the embodiment of the invention are shown in table 1.
Table 1 project achievement table
By continuously applying the detection system, device use data are formed, maintenance information query records are established, accumulation is provided for maintenance of the control device, important maintenance and maintenance basis and experience are provided, and the aims of quick maintenance and quick maintenance are fulfilled.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. The utility model provides a check-up system is stopped to on-spot atmospheric control device, its characterized in that, check-up system includes:
the environment box is used for simulating the working environment of the temperature and humidity sensor in the temperature and humidity control device; the control box is used for detecting and controlling the temperature and the humidity in the environment box; when the system is used for checking, a temperature and humidity sensor of the temperature and humidity control device to be checked is placed in an environment box, the temperature and the humidity in the environment box are controlled to reach a protection value or a set value of the temperature and humidity control device to be checked through a control box, temperature and humidity data obtained by detection of the temperature and humidity control device to be checked are compared with temperature and humidity data obtained by detection of a checking system, and whether the temperature and humidity sensor of the temperature and humidity control device to be checked is normal or not is judged based on a comparison result; if the data difference value of the temperature and the humidity sensor exceeds a preset range, judging that the temperature and humidity sensor of the temperature and humidity control device to be verified is abnormal; and if the data difference value of the temperature and humidity control device to be verified is within the preset range and the temperature and humidity control device to be verified does not execute the action, judging that the temperature and humidity control device to be verified has a fault.
2. The on-site temperature and humidity control device start-stop verification system according to claim 1, wherein the environment box comprises two mutually independent heating and humidifying boxes and a refrigerating box, a special device for heating, humidifying and dehumidifying and a sensor for monitoring temperature and humidity data of the environment box are arranged in the heating and humidifying boxes, a special device for refrigerating and a sensor for monitoring temperature and humidity data of the environment box are arranged in the refrigerating box, and the heating box and the refrigerating box adopt heat-insulating synthetic stone as a base material.
3. The on-site temperature and humidity control device start-stop verification system according to claim 1, wherein a plurality of different types of temperature and humidity sensor interfaces are reserved on the control box, the control box is connected with a temperature and humidity display, the temperature and humidity sensor interfaces are used for being connected with the temperature and humidity sensor to be verified, data measured by the temperature and humidity sensor to be verified are compared with data displayed by the temperature and humidity display, and the precision of the temperature and humidity sensor to be verified is verified based on a comparison result.
4. The on-site temperature and humidity control device start-stop verification system of claim 1, wherein the control box comprises: the intelligent control system comprises a power supply unit, a control unit, a display unit and an aerial plug-in, wherein mains supply input from the outside is converted into direct current through the power supply unit to provide required power electricity for other units in a control box and an environment box, and the control unit reads temperature and humidity data in the environment box in real time through an IIC (inter-integrated Circuit) and controls the environment box to work; the control unit is communicated with the display unit in real time, and on one hand, the display unit displays the temperature and humidity data of the environmental box in real time; on the other hand, based on the control instruction input by the display unit, the control unit controls the temperature and humidity state in the environment box in real time, and the control box is connected with the environment box through the aviation plug-in accessory.
5. The field temperature and humidity control device start-stop verification system according to claim 1, wherein the control box is provided with a power input interface, a safety interface, a power switch, a power indicator, a comprehensive parameter display and a cable box; the power input interface adopts a three-core socket; the fuse interface adopts a 3A fuse; the power supply indicator lamp is used for indicating the power supply state of the control box; the interface aerial plug adopts Y28M-19 TK; the cable box is exclusively used for storing aerial plug cables and power cables.
6. The field temperature and humidity control device start-stop verification system according to claim 2, wherein the heating and humidifying device is connected with the control unit through an aerial plug, heat preservation foam is filled in the heating and humidifying device, and the heating and humidifying device is provided with a heating semiconductor, a humidifying spraying nozzle, a water tank and a fan; in the heating, humidifying, dehumidifying and cooling processes, the fan starts to work, so that the temperature and humidity difference in the heating and humidifying box is controlled within a preset range.
7. The field temperature and humidity control device start-stop verification system according to claim 2, wherein the refrigeration box is connected with the control box through an aerial plug cable, a refrigeration semiconductor is arranged in the refrigeration box, and the refrigeration semiconductor is divided into a cold end and a hot end; the hot end of the refrigeration semiconductor is connected with a brass radiator, and two air duct openings are adopted to form an independent unique heat dissipation air duct; the cold end of the refrigeration semiconductor is connected with the radiator and is arranged in the heat-insulating foam to isolate the energy exchange between the refrigeration sheet and the external environment; a temperature sensor and a fan are arranged in the space of the cold end of the refrigeration semiconductor, and when refrigeration is started, the fan works to control the temperature difference of the internal environment of the refrigeration box within a preset range.
8. The on-site temperature and humidity control device start-stop verification system according to claim 2, wherein a heating sheet is adopted for a heating function of the heating and humidifying box, and the heating is realized through PID control; the control box reads temperature data in real time through the temperature sensor, and outputs the amount of duty ratio change through a PID algorithm to control the heating sheet to stably heat; the heating and humidifying box realizes humidification through PID control.
9. The on-site temperature and humidity control device start-stop verification system according to claim 8, wherein the heating and humidifying box humidifies by forming water mist through ultrasonic oscillation to realize humidification, and the heating and humidifying box intermittently sprays the water mist during humidification.
10. The field temperature and humidity control device start-stop verification system according to claim 4, wherein when the timer display interruption is triggered, the control box processes temperature and humidity data and sends the temperature and humidity data to the display through the serial port for a user to check; when the interrupt of the timer IIC is triggered, the control box controls the IIC to read the data of the temperature and humidity sensor, and the data are used as global variables to provide original data for other functional modules; when the interruption of the serial port of the man-machine interaction is triggered, the control box analyzes the received data, judges the operation of a user, quits the interruption, continues to process the original temperature and humidity data, obtains a control mode and time for controlling heating, humidification or refrigeration through a PID algorithm, and stops adjusting until the temperature and humidity value of the environment box is consistent with a set value.
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| CN201911133537.4A CN110837265A (en) | 2019-11-19 | 2019-11-19 | On-spot atmospheric control device opens and stops calibration system |
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| CN201911133537.4A CN110837265A (en) | 2019-11-19 | 2019-11-19 | On-spot atmospheric control device opens and stops calibration system |
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