The Role of Digital Pressure Sensors in Meteorological Monitoring System
China is one of the world's most serious national meteorological disasters, not only many kinds of disasters, wide geographical distribution, and the occurrence of high frequency, causing huge losses to the national economy. It can be seen that micro-meteorology is unpredictable and cannot be analyzed by human means. Therefore, new technologies must be utilized. In recent years, with the continuous development of the Internet of Things technology, in order to effectively prevent and mitigate the losses caused, the response to sudden increase To provide emergency meteorological support capabilities for public events, urgently need to realize comprehensive, three-dimensional, and continuous observations of meteorological disasters, improve the ability to monitor meteorological disasters , and monitor weather conditions in real time so that appropriate measures can be taken to avoid or resolve accidents. occur.
For this reason, the meteorological monitoring system has become the first choice for meteorological disaster monitoring because the meteorological monitoring system is suitable for on-the-spot monitoring of weather conditions such as wind direction, wind speed, rainfall, air temperature, relative humidity, atmospheric pressure, solar radiation, soil temperature, soil moisture, and other meteorological elements. Next, the meteorological monitoring system is a multi-element micro-meteorological monitoring device designed for monitoring the local meteorological environment of the transmission line corridors. The collected meteorological parameters and their changing conditions are transmitted to the center in real time through the 3G/GPRS/CDMA network. In the analysis system, when an abnormal situation occurs, the system will issue pre-alarm information in various ways, prompting the management personnel to pay attention to the alarm point or take necessary preventive measures. In this way , even if the staff do not leave the house, they can understand the real-time meteorological monitoring data of each meteorological monitoring station.
With the continuous development of digital sensor technology, it plays a crucial role in the timeliness and accuracy of meteorological disaster monitoring and early warning. The digital pressure sensor directly acts on the diaphragm of the sensor through the pressure, so that the diaphragm generates a micro displacement proportional to the pressure of the medium, so that the resistance of the sensor changes, and the change is detected by the electronic circuit, and the conversion output corresponds to The digital standard signal of this pressure is therefore the biggest characteristic of the digital sensor is to obtain monitoring information through the application of a large number of sensors and sensing technology, real-time transmission through the Internet, and data processing and analysis. These characteristics have important application value for the establishment of meteorological disaster monitoring and early warning system. For example, in the frozen weather grid transmission line, frequent accidents such as the collapse of the ice-covering line collapse, windy weather leading to the line deviation (dragging) to break the wire, or the deformation of components, towers and tripping accidents, are currently used in meteorological monitoring. The digital pressure sensor in the system is a new MS5607-02BA03 digital output sensor . MS5607-02BA03 is a new 24 -bit high-resolution digital pressure sensor MS5607-02BA03 , which is related to the previous MS5534/5540//5561 . than the resolution of the pressure increase from 0.1mbar (1 meter) to 0.024mbar (20cm), the temperature resolution is improved by a 0.01 ° C to 0.002 ° C, the conversion time is increased from before to 35ms 1ms. At the same time, the measuring range has been expanded from 10-1100mbar to 10-1200mbar . The accuracy has not improved and is still +/- 1.5 mbar . Reduced power consumption from the previous 4 μ A to 1 μ A. Whether MS5534/5540 or MS5561 , their 16 -bit signals are all three-wire SPI transmissions. The MS5607 's 24 -bit data can be selected for SPI or I2C signaling. To real-time monitoring of weather situation so that you can take appropriate measures to avoid or resolve accidents.
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