A high-precision GPS track measurement system

Overview:

The GPS track measurement system uses high-precision GPS technology to measure the real-time information of the track, speed, attitude, etc. of mobile targets such as cars, ships, and airplanes. At the same time, the system integrates GIS, mobile communications and other technologies to remotely monitor and analyze the information of mobile targets in real time, evaluate the movement process, and ensure the effective operation of mobile targets. The system provides a good interface, which is not only used in conjunction with the operation command system of mobile targets, but also compatible with traditional measurement methods and serves as a backup for each other.

The system provides three working modes: real-time RTK, real-time reverse RTK and post-dynamic carrier phase differential processing, which fully meet the user's requirements for track data accuracy and test reliability.

The system has passed the test of high reliability and high precision in harsh environments and has been promoted and applied in related fields.

Key features:

◇Real-time measurement of trajectory, posture and other parameters of moving targets;

◇Record and store the trajectory, posture and related parameters of moving targets in real time;

◇Provide a unified time signal for other measuring devices within the system;

◇Real-time transmission of moving target motion parameters;

◇Remotely monitor the motion parameters of moving targets;

◇Remote telemetry, command and management of mobile targets to measure relevant motion parameters;

◇Monitor and manage the main status parameters of the system;

◇ Comprehensive data processing after the event to fully replay, print and analyze the movement process.

constitute:

The system consists of a base station monitoring subsystem, a high-speed wireless data transmission subsystem, a mobile target data acquisition subsystem, and a post-data processing subsystem.

◆Base station monitoring subsystem

The base station monitoring subsystem consists of a GPS base station module, a real-time monitoring system module and a base station power supply unit. It provides the differential information required for GPS carrier phase differential measurement during the mission, receives and processes the comprehensive measurement data and motion parameter data transmitted by the data link in real time, monitors and displays the system working status.

◆High-speed wireless data transmission system

The high-speed wireless data transmission subsystem realizes the upload of GPS differential information of the base station during the mission, and the download of comprehensive measurement information and motion parameter data of the mobile target equipment. The subsystem consists of the base station wireless data transmitting station and antenna, the base station wireless data receiving station and antenna, the mobile target wireless data transmitting station and antenna, the mobile target wireless data receiving station and antenna, and the large telemetry system.

◆Mobile target data collection subsystem

The mobile target data acquisition subsystem realizes the functions of motion parameter measurement, providing time unified signal, measuring equipment data acquisition, decoding, recording, and distribution.

◆Post-data processing subsystem

The post-mission data processing subsystem realizes the functions of accurate calculation of vehicle motion parameters, data fusion processing, motion parameter analysis and processing, coordinate conversion, etc. It consists of GPS high-precision post-processing software and post-mission motion parameter analysis software.

Software interface: