WE-HPP-EVK-F9-B helps drones in geological monitoring applications

I. Background overview

China has a large land area, complex geographic environment, large spatial and temporal differences in climate, many mountainous areas, and great geological hazards.F9P can realize centimeter-level positioning by RTK and millimeter-level positioning by post-decoding of raw data.F9P's ultra-low power consumption and high accuracy provide reliable data support for geological monitoring and early warning.

II. Products

WE-HPP-EVK-F9-BThat is, F9 core board, based on the Swiss U-Blox F9 series centimeter-level high-precision positioning module design, to achieve centimeter-level positioning. The purpose is to facilitate users to quickly develop high-precision positioning products.

1. Realize centimeter-level positioning, support GPS/BEIDOU/GLONASS/GALILEO all galaxies, support dual-band.

2. It can be directly connected to a computer via Micro USB for testing.

3. It can be set as a base station or mobile station by configuration.

4. Can be plugged into the supporting baseboard, with Digi Xbee long-distance wireless module to transmit differential data for rapid evaluation.

5. The peripheral design refers to U-Blox recommended devices and requirements, safe and reliable.

6. Can be used directly for mass production.

III. Application block diagram

IV. Main application scenarios for geological monitoring

(1) Geo-disaster monitoring: seismic hazards, landslides, mudslides, ground subsidence and settlement;

(2) Urban: road cracks, settlement, and slope sections in storm-prone areas;

(3) Monitoring of railroad roadbeds, monitoring of highway bridges, open-pit mines, tailing ponds, settlement of mining areas, and deformation of engineering buildings;

(4) Zones of rivers, lakes, reservoirs, seas, ditches, reservoir dams, and bank slopes of reservoir areas;

V. Introduction to geological monitoring functions

Geological monitoring system makes full use of AIoT technology and IoT technology to improve especially the high precision, low power consumption F9P came out, will monitor the accuracy of the system, transmission timeliness, safety, automation degree, and lay the foundation for the geological detection of the WE-HPP-EVK-F9-B that is, the F9 core board, based on the F9P module of the core board is applied to the drone monitoring, through the advanced high-precision GNSS provides high-precision timing guarantee for the whole system, and itself can also provide high-precision displacement solving. It realizes the real-time and spatialization of the dynamic monitoring information of geologic hazards, which can display the information in real time, monitor whether the instrument works normally or not, and show the abnormal status of each monitoring point on the map. At the same time, it provides data linkage of personnel, vehicles and location in the region, and improves the efficiency of the system.

Professional analysis of historical monitoring data, generation of curve or line graphs such as comparison of the same element in different periods and comparison of different elements in the same period, observation of the trend of evolution of each data, and study of the intrinsic connection between changes in each monitoring data. Realize the automatic warning of geological disasters, and automatically send warning information to designated personnel when the monitoring value reaches the warning threshold.

VI. Configuration and Functional Implementation

Two EVKs are needed to realize the UAV shooting function, one EVK is configured as Moving Base mode, outputs RTCM data, and transmits it to the other EVK wirelessly.

The other EVK is configured as Rover mode, and receives the RTCM data wirelessly to the module, which realizes high-precision heading and other data through RTK algorithm.