Meteorological multi-parameter monitoring equipment based on Loongson 1D processor

Abstract

The invention discloses meteorological multi-parameter monitoring equipment based on a Loongson 1D processor. The equipment comprises a fixing support. A single-hole base is mounted at the upper partof the fixed bracket. The upper part of the single-hole base is sequentially connected with a middle ring, a double-hole base and a bottom cover from bottom to top through screws. The bottom cover isconnected with the lower portion of the reflecting surface seat through screws. The upper portion of the reflecting surface seat is connected with the lower portion of the sensor fixing seat through avertical connecting column. The connecting column comprises a threading column and three supporting columns, the threading column and the supporting columns are evenly distributed and installed on the upper portion of the reflecting surface seat, and the top cover is arranged on the upper portion of the sensor fixing seat. A Loongson 1D processor is adopted, the functions of an ultrasonic time difference measurement function (TDC), an ultrasonic pulse generator, a CPU, a serial port, a voltage detection unit, ultrasonic transducer disconnection detection and the like are integrated, modular configuration is adopted, application is convenient and flexible, and field maintenance is facilitated.

Description

technical field [0001] The invention belongs to the field of meteorological monitoring, in particular to a multi-parameter meteorological monitoring device based on a Loongson 1D processor. Background technique [0002] As people pay more attention to the environment, the implementation of environmental protection projects will adopt a grid method to monitor the source of pollutants in the air, which needs to be judged in conjunction with meteorological parameters, among which wind speed and wind direction sensors are generally used in large quantities. The traditional three-cup anemometer will cause high maintenance costs due to mechanical wear and tear. The start-up wind speed is high, and the measurement accuracy is not high at low wind speeds. It is difficult to determine the direction of pollution source diffusion. The three-cup anemometer also has a large volume and installation Inconvenient downside. In recent years, with the development of science and technology, in...

AI Technical Summary

Problems solved by technology

Using the traditional three-cup anemometer, there will be mechanical wear and tear, which will lead to high maintenance costs, high start-up wind speed, low measurement accuracy at low wind speed, and it is difficult to determine the direction of pollution source diffusion. The three-cup anemometer also has a large volume and installation inconvenient disadvantage

In recent years, with the development of science and technology, integrated meteorological sensors using ultrasonic wind speed and direction have also appeared in China, but most of these devices use general-purpose processors combined with peak detection circuits in circuit design, but the detection accuracy of this type of ultrasonic wind speed and direction depends on Due to the ADC sampling rate of the processor, because the sampling rate of the built-in ADC of these processors is not high, the error of the collected wind speed and direction is relatively large

In addition, there is also a combination design of FPGA and TDC time difference measurement chip. The circuit of this acquisition method is relatively complicated, and the cost is also high.

In addition, the transducer installation method of these ultrasonic wind speed and wind direction collection equipment adopts the bottom-mounted method. After practical application and measurement, this method is easily affected by rain and snow, resulting in large errors in monitoring data.

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