The temperature and humidity controller is based on an advanced single-chip microcomputer as the control core, and adopts imported high-performance temperature and humidity sensors, which can measure and control temperature and humidity signals at the same time, and realize liquid crystal digital display. The lower limit is set and displayed, so that the instrument can automatically start the fan or heater according to the on-site situation, and automatically adjust the actual temperature and humidity of the measured environment.
With the development of the industry, the requirements for on-site temperature and humidity control are getting higher and higher, and the traditional analog switch control has been difficult to meet the production requirements. Therefore, the design of a more reliable and intelligent wireless temperature and humidity controller will have higher economic benefits and Practical value. The wireless temperature and humidity controller is a new type of controller that integrates the functions of temperature and humidity signal acquisition, data storage, wireless transceiver, control and communication. For harmful and dangerous work sites that are difficult or inaccessible to humans, the design of wireless temperature and humidity controllers to collect, control and record the temperature and humidity of the production site can achieve reliable production and improve product quality. In addition, due to the large space of the industrial site, temperature and humidity are controlled quantities of nonlinearity, pure lag and large inertia, so the combination of slave distributed control and host centralized control is used to control on-site temperature and humidity, that is, through multi-point slave control The temperature and humidity are collected and controlled by the machine, and the wireless module is used to transmit the information to the central host. The central host transmits the given value and control parameters to each slave through wireless communication, and the host can monitor. The wireless temperature and humidity controller based on STM32 can accurately collect and control temperature and humidity signals, and accurately conduct two-way communication with the host through wireless communication, with stable and reliable work, simple structure and low cost; in addition, the STM32 main controller has rich hardware resources and functions Powerful, convenient and flexible development, convenient for later functional expansion. The design basically realizes digitalization, and can achieve better temperature and humidity control requirements through digital PID control, with high stability and reliability, and achieves the requirements of energy saving and low consumption
The temperature recorder is an intelligent technology upgrade enterprise product of industrial acidity meter. A live display is a safety device that is directly installed on the indoor electrical equipment to visually display whether the electrical equipment has operating voltage. When the equipment has operating voltage, the display window of the display flashes to warn people that the high-voltage equipment is electrified, and there is no indication when there is no electricity. A high-voltage live display is a prompt safety device that is directly installed on the indoor electrical equipment to visually display whether the electrical equipment has operating voltage. When the equipment has operating voltage, the display window of the display flashes to warn people that the high-voltage equipment is electrified, and there is no indication when there is no electricity. The device is generally installed in incoming busbars, circuit breakers, main transformers, switch cabinets and other places that need to be shown whether it is live or not. A fault indicator refers to a short-circuit and ground-fault indicator, which is a device used to detect short-circuit and ground faults. In line fault detection, it is used with the fault locator. At present, fault indicators are widely used in line troubleshooting in my country. The pH value of liquids can be measured and controlled continuously. The instrument company itself has a relay to control the system output. It can realize the functional design requirements of acid and alkali pump control of acid and alkali in industrial production sites in China.
The analog output of the temperature recorder enables real-time connection with paperless recorders, PLCs, etc. In addition, the RS485 communication function can realize the real-time connection with the computer, and the host computer software can also realize the online system monitoring function of multiple PH controllers. Suitable for urban sewage treatment plants, chemical industry, printing and dyeing, papermaking, pharmaceuticals, electroplating and environmental protection.
The temperature recorder can carry out environmental monitoring and evaluation of historical development data and curve problems through the USB interface technology and data analysis system software pre-installed on the computer according to the signals collected, displayed, recorded and on-site transmitters. High-speed and high-performance microprocessors imported from China are used, mainly used in metallurgy, petroleum and other industries. It has been widely used in industrial production places such as lead, chemical industry, building materials, papermaking, food, medicine, heat treatment, etc.
The temperature recorder is an instrument for monitoring and recording various climate parameters in the fields of agricultural scientific research, food, medicine, chemical industry, chemical industry, meteorology, environmental protection, electronics, laboratories and other fields. The sampled data is stored in the recorder memory, the collected and recorded data can be transmitted to the computer for processing, and the recorder is powered by a high-energy lithium battery. External power supply is optional. It’s small, portable, and the recorder consumes very little power.
For a long time, the traditional method of recording temperature and humidity data usually uses manual recording or ordinary recording ink to draw a curve on the recording paper, which is bulky, low in precision, easy to block ink, and time-consuming and labor-intensive. Later inspection and paperless recorders were not widely used in agricultural science. Due to its large size and high cost, an external power supply is required.
The temperature recorder has a built-in smart chip, with 12-bit a/d conversion, large-screen LCD display, smart recording and remote communication functions. It uses internationally renowned sensors and microprocessors to display and automatically record temperature and humidity data in real time and store it in the non-volatile memory of the temperature recorder. Electronic and humidity data, which is not possible with traditional instruments.
The temperature recorder has developed a variety of recording management modes and arbitrary recording time interval settings. In order to ensure the environmental adaptability and reliability of the instrument, the recorder does not have any switches and buttons. All student settings and startup and shutdown are set by the soft panel of the applied research program running on a general-purpose computer through a network communication technology interface, and the temperature recorder can complete its work independently without computer information. When the relevant data needs to be read, the data in the recorder can be read by the computer through the mobile communication interface at the same time。
Post time: Oct-27-2022