1、Composition of the plan
Mainly composed of temperature and humidity collector, temperature and humidity monitoring platform, controller (box )，Actuator, remote measurement and control terminal RTU It is composed of parts such as control center software. The system adopts a bus structure and is designed in a modular manner. Each part can work independently and online, making it easy to form and has good expansion.The intelligent temperature and humidity collector uses internationally advanced temperature and humidity sensitive components to transmit temperature and humidity parameters;The temperature and humidity measurement and control platform has a built-in microprocessor, which is intelligently designed, can work independently and facilitate networking. It can also monitor and manage the work of each temperature and humidity controller, instructing each corresponding mechanism to realize ambient temperature and humidity detection and control. At the same time, the communication function of the control platform allows it to be managed and controlled by the upper computer and computer as a lower computer, through power carriers or telephone lines. (wireless )Other communication means can be connected to the overall measurement and control system center network.
2、Plan composition diagram
3、Description of each part of the plan
1)Temperature and humidity collector (Signal acquisition )：
It is used to measure ambient temperature and humidity, and uses high-precision temperature and humidity measurement with thermosensitive resistors and polymer humidity sensor capacitors, intelligent design, and automatic calibration of temperature and humidity reference.
2)Controller:
Accept the instructions of the temperature and humidity measurement and control platform to control the start and stop of the actuator;
3)Actuator:
Refers to equipment used to achieve heating, refrigeration, humidification, dehumidification and other functions, such as heaters, refrigerators, humidifiers, wetting machines, etc.;
4)Monitoring platform:
It is an important part of the real-time temperature and humidity monitoring system, and is connected to the temperature, humidity measurement and control, signal collector and computer management control center (Upload machine )the hub.On the one hand, the alarm setting parameters are transmitted to the measuring head, and the temperature and humidity values and switching variables of each point are obtained. On the other hand, the temperature and humidity values, status and switching variables are uploaded to the computer management control center.The patrol inspection control device provides crystal display time, channel number, temperature, humidity, and air extraction and dehumidification.The measurement and control platform provides real-time time by hardware, and the clock circuit contains backup batteries and has power-down protection function.The system time not only provides display, but is also used for printing, making it easy to query data from each point.The number of channel numbers depends on how many measuring heads the measurement and control platform can support at most.The temperature display depends on the test range, the humidity three-digit digital display is 1 RH％——99RH％，Resolution is 0.5 RH％。The system status includes ventilation, forced ventilation, dehumidification, forced dehumidification, fault, locking, and query.The temperature and humidity control value can be continuously set, and the operation of the temperature and humidity measuring controller can be automatically monitored according to the setting command, and the operation of the entire system can be controlled. At the same time, the communication module and the computer management control center can be used. (Upload machine )Communication networking, accept computer management control center (Upload machine )work instructions. (Optional printer with Chinese characters )。
5)communication (link )Module:
Connect to the Computer Management Control Center (Upload machine )With the measurement and control platform, the monitoring platform is included in the overall computing control management center system.
6)Computer Management Control Center
1、Multiple monitoring platforms can be remotely displayed and detected in real time: when clicking on the selected measurement and control platform, the computer will display and detect the platform in real time and in table form and curve form.' F Each temperature, temperature, relative humidity, absolute humidity, automatic air-exhaust dehumidification state, forced air-exhaust dehumidification state, automatic control set value, etc.Special colors are given for value exceeding the standard.
2、The historical data of each measurement and control platform can be stored and analyzed and processed accordingly.The juice computer management control center stores the daily data of each temperature and humidity measurement and control and signal collector of each measurement and control platform.Every time the software is started, the software will automatically read out historical data from the measurement and control system and calculate it.
