source:truck tracking webfleet solutions release time:2023-07-21 Hits: Popular:realtime gps tracker online
????
????With the continuous development of GPS positioning technology and the continuous improvement of positioning accuracy, GPS precise height measurement poses a challenge to traditional leveling height measurement. The biggest advantage of GPS height measurement compared to conventional leveling methods is that it is not limited by distance. The accuracy of GPS height difference has reached the accuracy of third order Levelling when the distance is more than 5~10km, and can approach the accuracy of second order leveling in a large range. The characteristics of GPS relative positioning, such as fast speed, high accuracy, all weather, and full automation, will make GPS leveling increasingly applicable. It is expected that GPS elevation will be widely applied in the following areas in the future.
????1. GPS encryption for third and fourth order leveling
????The workload of Levelling in mountainous and hilly areas is heavy, so GPS Levelling can be used for third and fourth order leveling densification.
????2. GPS river crossing Levelling
????In recent years, trigonometric leveling is often used in Levelling across wide waters. In fact, trigonometric leveling is often affected by errors such as atmospheric refraction, Vertical deflection or Geoid fluctuation.
????With GPS relative positioning, the spanning distance is large and the precision is high. If the existing national benchmarks on one bank are used, a reasonable graph is selected to form a GPS leveling network (generally 3-5 points). In this way, the GPS geodetic elevation can be converted into normal elevation by using curve or surface fitting method, and its precision is completely guaranteed, but the trigonometric elevation is difficult to achieve.
????3. GPS leveling for Deformation monitoring
????The classic Deformation monitoring network usually surveys the horizontal deformation and elevation deformation separately. Due to various factors, it is unable to establish a high-precision three-dimensional Deformation monitoring network. Considering the intervisibility conditions and Propagation of uncertainty and other reasons, the monitoring network can not be deployed in a large range, and is permanently located in the deformation area. This makes it difficult to find stable benchmarks during deformation analysis, which affects the quality of deformation analysis.
Read recommendations:
Last article锛?Car GPS one click alarm.fleet gps tracking Solution
Next article锛?GPS elevation measurement should be carried out according to the following requirements.gps tracker
Related Information
gps vehicle tracker manufacturer
2023-04-11gps tracker no monthly fee
2023-03-16Gps speed limiter Manufacturing
2023-04-23fleet gps tracking wholesale
2023-04-23Pet GPS Tracker sales
2023-04-11real-time gps tracking supplier
2023-04-23fleet gps trackers price
2023-04-234G GPS Tracker wholesale
2023-04-23gps tracker for bike
2023-03-16GPS Rastreader
2023-03-16TK100 (GT06) Vehicle Tracker
2022-06-20TK08AL- RFID Car GPS Tracker
2023-10-07G03
2022-06-21GF70L-Solar Magnetic Asset GPS Tracker
2023-10-07GF20-Mini Magnet GPS Tracker
2022-06-21The basic principle of GPS navigation system is briefly introduced
2022-11-02Introduce the principle of Beidou positioning.plug & play Obd gps tracker Vendor
2023-05-12It is recommended to install at least two GPS locators for risk control practice
2022-07-15What should I do if I encounter an offline alarm in the car GPS positioner?realtime tracking device
2023-03-24GPS system management
2022-10-08GPS positioning accuracy
2023-02-01GPS navigation phone.portable gps tracker Solution
2023-06-07GPS application
2022-10-10GPS operator core services.realtime gps tracker online manufacture
2023-08-18The difference between manufacturers compare the Beidou satellite navigation system and GPS navigati
2023-06-15Car GPS.obd-II port gps tracker Processing
2023-05-13How to use the car GPS navigator.realtime gps tracker online Vendor
2023-05-19GPS Buying Mistakes
2022-10-09GPS mobile phone positioning characteristics
2022-10-21GPS installation steps
2022-10-08