High-precision RTK positioning is one of the outdoor positioning technologies commonly used in the industry, which brings convenience to our work and life, and at the same time guards a good "protective line" for industrial safety production.
The global satellite positioning system includes BeiDou of China, Galileo of the European Union, GPS of the United States, GLONASS of Russia, and some regional ones, such as the Indian Regional Navigation Satellite System (IRNSS) and the Quasi-Zenith Satellite System (QZSS) of Japan. BeiDou RTK high-precision positioning, carrier phase differential technology, also known as differential positioning, is a technology to assist GNSS.
RTK high-precision positioning technology
RTK high-precision positioning technology is an important means for GNSS system to obtain high-precision real-time dynamic positioning, RTK positioning mainly consists of three parts, which are the reference station receiver, mobile station receiver and the data transmission link between the two stations. RTK reference station will be the corrected data or the collected carrier phase observation value through the data transmission link to the construction of the mobile station within the range of data transmission, the mobile station receiver receives the satellite observation data. The satellite observation data received by the receiver and the data sent by the reference station for phase difference positioning process, that is, RTK positioning process.
RTK Positioning Algorithm and Data Processing Flow
The RTK positioning method uses the synchronized observation data from the reference station and the mobile station, but there is a delay in the transmission of the data from the reference station, which leads to a lag in the obtained positioning results. The usual solution is to use the previous moment mobile station position and received observation data, short time delay processing, as a virtual base station observation data, and the current moment mobile station received observation data, together with RTK positioning solution.
Common functions of high-precision RTK positioning technology
Base station panning. In the "self-starting base station" mode, after the base station is moved or re-assumed, the base station translation step must be performed so that the points measured under the current base station can be consistent with those before the base station is turned off.
RTK point correction is to convert WGS84 coordinates to the current project coordinate system and solve the conversion parameters. Point calibration is divided into single-point calibration (three parameters), two-point calibration (four parameters), three-point calibration (seven parameters), four-point calibration (seven parameters).
Point Release. Point sampling is to put the plane position and elevation of engineering buildings on the design drawings, with certain measuring instruments (such as RTK) and methods of measurement to the field to go to the measurement work, is the measurement of coordinates of a counter process.
High-precision RTK Positioning Solution
Junoda's high-precision RTK positioning system adopts MC280M, a dual-frequency RTK high-precision positioning module that fully supports BeiDou 3 satellite signal system, which simultaneously supports BDS B1I+B2a, GPS/QZSS L1+L5, Galileo E1+E5a multi-frequency points, and integrates dual-frequency RTK high-precision positioning algorithms internally, which is capable of providing centimeter/millimeter-level high-precision position services. high-precision location services. The system integrates the functions of personnel information management, historical track playback, electronic fence, intelligent inspection, electronic operation ticket, intelligent early warning, emergency rescue, etc., which can satisfy a number of needs of enterprise safety production management and help enterprises guard the safety protection line.
RTK technology has become more and more mature after years of accumulation, and has been widely used in surveying and mapping, drone, vehicle, security and other fields because of its high accuracy, high speed, high stability and other characteristics. Xinrui Kechuang high-precision RTK positioning system has been applied in many fields such as petrochemical industry, manufacturing plants, etc. It is able to provide centimeter-level high-precision positioning results, which meets the high-precision requirements of enterprises and improves work efficiency!
Ltd. specializes in high-precision GNSS modules and wireless communication products, technology development and application promotion service providers, relying on the wireless communication technology in the field of R & D and promotion of experience, JUNODA set up a team with a wealth of experience in hardware and software development technology, aimed at domestic and foreign OEM / ODM customers and system integrators to provide high-quality, high-performance wireless modules and applications! We aim to provide high-quality, high-performance wireless modules and application programs to OEM/ODM customers and system integrators at home and abroad, and create long-term value for customers!
The company mainly provides integrated antenna module, dual-frequency high-precision module, single-frequency high-precision module, thousand-seeking high-precision module, Zhongke micro-positioning module, U-BLOX positioning module, SICOM communication module, inertial navigation DR module, UWM GNSS module, RTK differential module, 4G communication module and high-precision antenna, etc., the products are sold well in Beijing, Shanghai, Shenzhen, Guangdong, Jiangsu, Zhejiang, Sichuan, Hunan and other parts of the country. Our GNSS modules are widely used in many application fields, such as drones, vehicle security monitoring and dispatching, automatic bus stop announcement, DVR, car DVD navigation, GPS electronic dog, synchronized timing, high-altitude balloon monitoring, engineering machinery, industrial automation, etc. In the field of wireless communication products, the company is closely involved in the field of wireless communication, such as RTK differential module, 4G communication module and high-precision antenna.
In the field of wireless communication products, the company follows the latest development of international communication technology, introduces and acts as an agent for wireless communication modules that meet the market demand, and the products have a comprehensive layout from 2G, 3G, 4G, and are widely used in financial electronic payment, vehicle remote control, remote advertising information, repeater monitoring, mobile Internet terminals, smart home, remote medical care, network testing, enterprise information management, anti-theft alarm, Remote video transmission, intelligent meter reading, mobile computing, network navigation, voice phone, wireless gateway and other fields. Focused areas include video surveillance, network optimization, routers, POS and other M2M industry applications.
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