What is the GNSS reference station for geological hazard monitoring

　　What is the GNSS reference station for geological hazard monitoringGround fixed observation stations of global navigation satellite systems (such as GPS, Beidou, etc.) continuously receive satellite signals through high-precision receivers, accurately calculate their own three-dimensional coordinates, and output real-time observation data. It is the core infrastructure in the fields of surveying, meteorology, agriculture, transportation, etc. It can provide high-precision positioning, navigation, and timing services for surrounding users, correct satellite signal errors, and improve positioning accuracy to centimeter level. In the application scenarios of Fengtu Technology, benchmark stations can be linked with environmental monitoring and agricultural IoT devices to provide reliable spatial benchmarks for farmland surveying, disaster warning, meteorological data collection, etc.

1、 Product Introduction:What is the GNSS reference station for geological hazard monitoring？

The GNSS monitoring system for geological hazard monitoring is based on a satellite positioning system with known spatial positions and adopts the basic principle of spatial rendezvous to achieve absolute positioning of ground user terminal devices. The receiver terminal deployed on site remotely and wirelessly transmits observation data to the monitoring center (usually cloud based receiving and storage) according to the established collection and transmission frequency. The monitoring center analyzes and processes the observation data in real time for use by relevant technical and management departments.

From the perspective of data flow and functional division, the entire monitoring system can be divided into three main parts: spatial part, ground reference station part, and monitoring terminal part.

2、 Product Features

1. Support BEIDOU B1/B2/B3, GPS L1/L2/L5, GLONASS G1/G2, GALILEO E1/E5a/E5b, 4-system 11 frequency signals, independently developed high-precision adjustment and calculation software, realizing high-precision positioning of multi system multi frequency fusion

2. The product integrates tilt and acceleration modules to assist in detecting sudden changes in displacement data and driving adaptive adjustment of observation modes

3. The product is independently developed at the chip level, greatly reducing overall power consumption and making it more suitable for continuous operation in the field

4. The product supports 4G/NB IoT, wireless bridge, Ethernet and other data communication transmission modes, and supports communication protocols such as MQTT TCP/IP, NTRIP, JT808, etc

5. The product is equipped with a high-performance industrial grade 32-bit ARM core processor, with powerful local computing capabilities, built-in embedded web server, and remote bidirectional interaction

6. Support high-precision dynamic (static) state calculation based on application scenarios and monitoring requirements

7. The front-end embeds algorithms such as stellar day filtering, Kalman filtering, and mutation detection, and integrates big data cleaning, trend analysis, grey prediction, tangent angle analysis, and other models in the cloud to greatly ensure data reliability

8. The product adopts aluminum milling shell, internal and external sealing protection, and anti drop soft rubber design, which has excellent protection, anti drop and shock absorption performance

3、 Working conditions

Working voltage: 12V~36V

Instantaneous maximum current:<5A; Operating current: 10mA~120mA

Rated power consumption: less than 1.2W

Working temperature: -40 ° C~85 ° C; Working humidity: 95% RH

4、 Technical parameters

5、 Installation precautions

1. The aerial field of view is relatively wide, and there are no obstructions within a height angle of 15 ° in the field of view

2. Keep a distance of not less than 200 meters away from high-power radio transmission sources (such as television stations, radio stations, microwave stations, etc.), and a distance of not less than 50 meters away from high-voltage transmission lines and microwave radio signal transmission channels

3. There should be no strong signal reflecting objects nearby (such as large buildings, large areas of water, etc.)

4. The transportation is relatively convenient, which is conducive to construction, surveying, and later maintenance operations

5. The benchmark measurement should be carried out according to the design plan, and its foundation should ensure stability

6. Monitoring points should be set up according to the design plan, and any necessary adjustments should be fully communicated and determined with the design unit