CN215416422U - Multi-box body temperature and humidity control system - Google Patents
Multi-box body temperature and humidity control system Download PDFInfo
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- CN215416422U CN215416422U CN202121756939.2U CN202121756939U CN215416422U CN 215416422 U CN215416422 U CN 215416422U CN 202121756939 U CN202121756939 U CN 202121756939U CN 215416422 U CN215416422 U CN 215416422U
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Abstract
The utility model discloses a multi-box body temperature and humidity control system, which comprises a temperature and humidity controller and a plurality of temperature and humidity test boxes, wherein the temperature and humidity controller is connected with the temperature and humidity test boxes; the temperature and humidity controller comprises a touch display screen, an independent/combined control module, a test mode module, a parameter setting module and a first PLC, the temperature and humidity test box comprises a sensor, a humidifying device, a heating device, a refrigerating device, a protecting device and a second PLC, and the first PLC of the temperature and humidity controller is connected with the second PLCs of the temperature and humidity test boxes through serial ports respectively. According to the utility model, the independent PLC is arranged in each temperature and humidity test box, so that one temperature and humidity controller can respectively control a plurality of temperature and humidity test boxes to carry out different tests, the control is not interfered with each other, and the temperature and humidity test boxes can also be controlled to carry out the same test at the same time, thereby facilitating the management of the tests of the temperature and humidity test boxes by a user and improving the use experience of the user.
Description
Technical Field
The utility model relates to the technical field of test boxes, in particular to a multi-box body temperature and humidity control system.
Background
The test box is a general term of products in the environmental test industry, and is used for simulating a natural climate environment in an effective space range, and the test types are as follows: the temperature and humidity test box is a type of test box, has been widely used in the current society, plays an important role simultaneously, and brings obvious help to the production and life of people.
At present, the existing temperature and humidity test box is generally regulated and controlled by a temperature and humidity controller in the running process. However, the existing temperature and humidity controller can only control a single temperature and humidity test chamber, and cannot realize that one temperature and humidity controller controls a plurality of temperature and humidity test chambers; meanwhile, the existing temperature and humidity controller has single function, and can only correct the deviation value of the sensor in a single point, so that the error value is large.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model provides a multi-box body temperature and humidity control system.
The technical scheme of the utility model is as follows:
a multi-box body temperature and humidity control system comprises a temperature and humidity controller and a plurality of temperature and humidity test boxes;
the temperature and humidity controller comprises a touch display screen, an independent/combined control module, a test mode module, a parameter setting module and a first PLC (programmable logic controller), the first PLC is respectively connected with the touch display screen, the independent/combined control module, the test mode module and the parameter setting module,
the temperature and humidity test box comprises a sensor, a humidifying device, a heating device, a refrigerating device, a protecting device and a second PLC, the second PLC is respectively connected with the sensor, the humidifying device, the heating device, the refrigerating device and the protecting device,
and the first PLC of the temperature and humidity controller is respectively connected with the second PLCs of the temperature and humidity test boxes through serial ports.
According to the utility model of the above scheme, the independent/combined control module includes an independent control unit, a combined control unit and a control mode selection unit, and the control mode selection unit is respectively connected with the independent control unit, the combined control unit and the first PLC.
According to the utility model of the above scheme, the test mode module comprises a constant value test unit, a program test unit and a test mode selection unit, and the test mode selection unit is respectively connected with the constant value test unit, the program test unit and the first PLC.
According to the utility model of the above scheme, the parameter setting module comprises a PID parameter setting unit and a sensor multipoint correction unit, and both the PID parameter setting unit and the sensor multipoint correction unit are connected with the first PLC.
Further, the PID parameter setting unit includes a humidity PID parameter setting unit, a high temperature PID parameter setting unit, and a low temperature PID parameter setting unit, and the humidity PID parameter setting unit, the high temperature PID parameter setting unit, and the low temperature PID parameter setting unit are all connected to the first PLC.
Furthermore, the parameter setting module further comprises a refrigeration pressure parameter setting unit, and the refrigeration pressure parameter setting unit is connected with the first PLC.
According to the utility model of the above scheme, the sensor comprises a temperature sensor and a humidity sensor, and both the temperature sensor and the humidity sensor are connected with the second PLC.
According to the utility model of the scheme, the protection device comprises a pressure relay, a thermal relay and an over-temperature protector, and the pressure relay, the thermal relay and the over-temperature protector are all connected with the second PLC.
According to the scheme, the serial port is one of an RS485 serial port, an RS232 serial port and an RS422 serial port.
According to the utility model of the scheme, the beneficial effects of the utility model are as follows:
1. the independent PLC is arranged in each temperature and humidity test box, so that one temperature and humidity controller can respectively control a plurality of temperature and humidity test boxes to perform different tests, the control rooms are not interfered with each other, and the temperature and humidity test boxes can also be controlled to perform the same test at the same time, so that a user can manage the tests of the temperature and humidity test boxes conveniently, and the use experience of the user is improved;
2. in the parameter setting module, a plurality of deviation correction ranges are set for the sensors of the temperature and humidity test boxes through a sensor multipoint correction unit, and the deviation of the sensors can be corrected in the deviation correction ranges, so that the deviation of the multipoint correction sensors is realized;
3. in the parameter setting module, the temperature PID parameters are divided into high temperature and low temperature through the high temperature PID parameter setting unit and the low temperature PID parameter setting unit to be respectively set, and the temperature PID parameters can be output at a high temperature adjusting and heating device and output at a low temperature adjusting and cooling device, so that the aim of accurately and quickly achieving the set temperature value is fulfilled.
Drawings
FIG. 1 is a system framework diagram of the present invention;
FIG. 2 is a structural frame diagram of the temperature and humidity controller according to the present invention;
FIG. 3 is a structural frame diagram of the temperature and humidity test chamber of the present invention;
FIG. 4 is a block diagram of the independent/combined control module according to the present invention;
FIG. 5 is a structural frame diagram of a test mode module of the present invention;
FIG. 6 is a block diagram of a parameter setting module according to the present invention;
FIG. 7 is a structural framework diagram of a PID parameter setting unit according to the utility model.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.
It should be noted that the terms "disposed" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The meaning of "plurality" is two or more unless specifically limited otherwise.
Referring to fig. 1 to fig. 3, the present embodiment provides a multi-chamber body temperature and humidity control system, which includes a temperature and humidity controller and a plurality of temperature and humidity test chambers.
The temperature and humidity controller comprises a touch display screen, an independent/combined control module, a test mode module, a parameter setting module and a first PLC, wherein the first PLC is respectively connected with the touch display screen, the independent/combined control module, the test mode module and the parameter setting module. The touch display screen is used for displaying test information, a user operation interface and receiving user input operation, and the test information comprises fault content, implementation and a historical data curve. The independent/combined control module is used for independently or combined control of the operation of each temperature and humidity test box, namely, the independent/combined control module can independently control the operation of each temperature and humidity test box and can also simultaneously control the operation of each temperature and humidity test box. The test mode module is used for selecting test modes of the temperature and humidity test boxes, and the test modes comprise a constant value test mode and a program test mode. The parameter setting module is used for debugging internal parameters of the temperature and humidity test boxes.
The temperature and humidity test box comprises a sensor, a humidifying device, a heating device, a refrigerating device, a protecting device and a second PLC, the second PLC is respectively connected with the sensor, the humidifying device, the heating device, the refrigerating device and the protecting device, and the first PLC of the temperature and humidity controller is respectively connected and communicated with the second PLCs of the temperature and humidity test boxes through serial ports. Specifically, the sensor includes that temperature sensor and humidity transducer all are connected with the second PLC.
According to the utility model, the independent PLC is arranged in each temperature and humidity test box, so that one temperature and humidity controller can respectively control a plurality of temperature and humidity test boxes to carry out different tests, the control is not interfered with each other, and the temperature and humidity test boxes can also be controlled to carry out the same test at the same time, thereby facilitating the management of the tests of the temperature and humidity test boxes by a user and improving the use experience of the user.
Referring to fig. 4, in the present embodiment, the independent/combined control module includes an independent control unit, a combined control unit, and a control mode selection unit, and the control mode selection unit is respectively connected to the independent control unit, the combined control unit, and the first PLC. The independent control unit is used for respectively controlling the plurality of temperature and humidity test boxes to perform tests, and the control is not interfered with each other. The combined control unit is used for controlling the plurality of temperature and humidity test boxes to simultaneously perform the same test. The control mode selection unit is used for entering an independent control mode or a combined control mode according to input operation of a user. In an independent control mode, a plurality of temperature and humidity test boxes are respectively controlled by an independent control unit to carry out tests; in the combined control mode, the combined control unit respectively controls and controls the plurality of temperature and humidity test boxes to simultaneously perform the same test.
Referring to fig. 5, in the present embodiment, the test mode module includes a constant value test unit, a program test unit and a test mode selection unit, and the test mode selection unit is respectively connected to the constant value test unit, the program test unit and the first PLC. The fixed value test unit is used for setting test parameters of a fixed value test mode, and the test parameters comprise a temperature target value, a slope, test time and the like; the program test unit is used for setting the test parameters, time, the number of required circulation sections and the like of each section of test in the constant value test mode. The test mode selection unit is used for entering a constant value test mode or a program test mode according to the input operation of a user.
The fixed value test mode means that only one group of test parameters can be set at a time and only a single test can be carried out. After one test is finished, if other tests are needed, the test parameters need to be reset, and different temperature combination tests cannot be carried out. The program test mode is that many sets of test parameters can be set in a test procedure in advance, after the procedure is started to operate, the equipment starts to operate according to the sequence set by the procedure without changing the test set value midway, namely, in the program test mode, many combined tests with different temperatures can be performed. In addition, the jump and circulation can be set between the programs in the same program, and program links can be set between different programs.
Referring to fig. 6, in the present embodiment, the parameter setting module includes a PID parameter setting unit, a sensor multipoint correcting unit, and a refrigeration pressure parameter setting unit, and the PID parameter setting unit, the sensor multipoint correcting unit, and the refrigeration pressure parameter setting unit are all connected to the first PLC. The PID parameter setting unit is used for setting temperature and humidity PID parameters of each temperature and humidity test box, and the sensor multi-point correction unit is used for setting a plurality of deviation correction ranges for the sensors of each temperature and humidity test box and correcting the deviation of the sensors in the deviation correction ranges, so that the deviation of the sensors is corrected in a multi-point mode. The refrigeration pressure parameter setting unit is used for setting the refrigeration pressure parameter of the refrigeration device.
Referring to fig. 7, in particular, the PID parameter setting unit includes a humidity PID parameter setting unit, a high temperature PID parameter setting unit, and a low temperature PID parameter setting unit, and the humidity PID parameter setting unit, the high temperature PID parameter setting unit, and the low temperature PID parameter setting unit are all connected to the first PLC. The humidity PID parameter setting unit is used for setting humidity PID parameters of the temperature and humidity test boxes; the high-temperature PID parameter setting unit is used for setting high-temperature PID parameters of the temperature and humidity test boxes. The low-temperature PID parameter setting unit is used for setting low-temperature PID parameters of the temperature and humidity test boxes. The temperature PID parameters are divided into high temperature and low temperature through the high temperature PID parameter setting unit and the low temperature PID parameter setting unit to be respectively set, and the temperature PID parameters can be output by the high temperature adjusting and heating device and the low temperature adjusting and cooling device, so that the aim of accurately and quickly achieving the set temperature value is fulfilled.
In this embodiment, protection device includes pressure relay, thermorelay and overtemperature prote ware, and pressure relay, thermorelay and overtemperature prote ware all are connected with second PLC, can follow the safe operation of each temperature and humidity test case of multiple aspect through pressure relay, thermorelay and overtemperature prote ware.
In this embodiment, the serial port is one of an RS485 serial port, an RS232 serial port, and an RS422 serial port, and a person skilled in the art can select an appropriate serial port according to actual requirements, which is not limited in the present invention.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the utility model as defined in the appended claims.
The utility model is described above with reference to the accompanying drawings, which are illustrative, and it is obvious that the implementation of the utility model is not limited in the above manner, and it is within the scope of the utility model to adopt various modifications of the inventive method concept and technical solution, or to apply the inventive concept and technical solution to other fields without modification.
Claims (9)
1. A multi-box body temperature and humidity control system is characterized by comprising a temperature and humidity controller and a plurality of temperature and humidity test boxes;
the temperature and humidity controller comprises a touch display screen, an independent/combined control module, a test mode module, a parameter setting module and a first PLC (programmable logic controller), the first PLC is respectively connected with the touch display screen, the independent/combined control module, the test mode module and the parameter setting module,
the temperature and humidity test box comprises a sensor, a humidifying device, a heating device, a refrigerating device, a protecting device and a second PLC, the second PLC is respectively connected with the sensor, the humidifying device, the heating device, the refrigerating device and the protecting device,
and the first PLC of the temperature and humidity controller is respectively connected with the second PLCs of the temperature and humidity test boxes through serial ports.
2. The multi-box body temperature and humidity control system according to claim 1, wherein the independent/integrated control module comprises an independent control unit, an integrated control unit and a control mode selection unit, and the control mode selection unit is respectively connected with the independent control unit, the integrated control unit and the first PLC.
3. The multi-box body temperature and humidity control system according to claim 1, wherein the test mode module comprises a constant value test unit, a program test unit and a test mode selection unit, and the test mode selection unit is respectively connected with the constant value test unit, the program test unit and the first PLC.
4. The multi-box body temperature and humidity control system according to claim 1, wherein the parameter setting module comprises a PID parameter setting unit and a sensor multipoint correction unit, and both the PID parameter setting unit and the sensor multipoint correction unit are connected to the first PLC.
5. The multi-box body temperature and humidity control system according to claim 4, wherein the PID parameter setting unit comprises a humidity PID parameter setting unit, a high temperature PID parameter setting unit and a low temperature PID parameter setting unit, and the humidity PID parameter setting unit, the high temperature PID parameter setting unit and the low temperature PID parameter setting unit are all connected with the first PLC.
6. The multi-box body temperature and humidity control system of claim 4, wherein the parameter setting module further comprises a refrigeration pressure parameter setting unit, the refrigeration pressure parameter setting unit being connected to the first PLC.
7. The multi-box body temperature and humidity control system of claim 1, wherein said sensors comprise a temperature sensor and a humidity sensor, both of said temperature sensor and said humidity sensor being connected to said second PLC.
8. The multi-box body temperature and humidity control system according to claim 1, wherein the protection device comprises a pressure relay, a thermal relay and an over-temperature protector, and the pressure relay, the thermal relay and the over-temperature protector are all connected with the second PLC.
9. The multi-box body temperature and humidity control system according to claim 1, wherein the serial port is one of an RS485 serial port, an RS232 serial port and an RS422 serial port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121756939.2U CN215416422U (en) | 2021-07-29 | 2021-07-29 | Multi-box body temperature and humidity control system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121756939.2U CN215416422U (en) | 2021-07-29 | 2021-07-29 | Multi-box body temperature and humidity control system |
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| CN215416422U true CN215416422U (en) | 2022-01-04 |
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| CN202121756939.2U Active CN215416422U (en) | 2021-07-29 | 2021-07-29 | Multi-box body temperature and humidity control system |
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