GNSS monitoring station

1.Introduction to GNSS monitoring station

GNSS monitoring stations are used for monitoring and early warning of dam safety, bridge health, landslides, etc. These receivers are able to detect the smallest changes in position.GNSS monitoring station is a millimeter-level displacement monitoring product implemented using differential RTK technology.It can be widely used in engineering fields such as dam safety monitoring, bridge health detection, landslide warning, etc.This product has high precision, high stability and real-time data transmission capabilities, and can accurately monitor the tiny displacement changes of target objects in various complex environments.GNSS monitoring station is simple to operate, convenient to install, can remotely monitor and data analysis, providing strong guarantees for engineering safety.In addition, its powerful data processing capabilities and compatibility make this product easily integrated into various monitoring systems, realizing data sharing and integration, and providing comprehensive and efficient solutions for engineering safety monitoring.

2.GNSS monitoring station product parameters

Sensor parameters:

1.Sensor power supply: DC10V-15V

2.Sensor power consumption: 0.25W

3.Static accuracy (differential mode): horizontal ± (2.5mm+1ppm), vertical ± (5mm+1ppm)

4.☆Antenna: Choke antenna, magnetic wave absorbing material, effectively reducing multipath effect

5.☆ Communication protocol: Modbus-RTU, supports offline calculation of displacement amount and vertical and horizontal directions of displacement at the device end

6.Support RTCM3 differential data

7.Dimensions: Diameter 360mm Height 163mm

8.Working environment: -40°C~+85°C, 0%RH~95%RH (no condensation)

Monitoring station parameters:

9.Power supply of the station: 30W solar panels, 20AH battery

10.Station power consumption: Sensor + LORA: 0.6W Sensor + LORA + Data upload: 0.96W

11.☆Supports displacement alarm, displacement output, displacement angle output in independent working mode (not relying on cloud platform)

12.Supports data communication and transmission such as 4G, wireless bridge, wifi, and Ethernet

13.☆Support TCP, HTTP, and UDP direct transmission customer platforms for station testing

Collector parameters:

14.☆Support on-site RS485 output ASCII data format

15.☆Support on-site addition of RS485Modbus-RTU environment sensor

16.Supports built-in 4GFPC antenna

Cloud platform parameters:

17.☆Support platform forwarding and support TCP and HTTP

18.☆The cloud platform supports 3D data viewing, and intuitively view the displacement direction and change amount of observation points.

3.Installation of GNSS monitoring station

Installation requirements:

1.There should be no tall buildings around the base station or the measurement station.If it cannot be avoided, it should be kept at least 20 meters away.

2.The distance between the reference station and the measurement station (baseline distance) is recommended to be less than 500 meters, with a maximum of no more than 2KM, and try to choose to install it at the same altitude.If the distance is too large, the accuracy will be reduced.

3.Try to be visible between the reference station and the measurement station.If it is not fully visible, avoid obstruction of high walls, buildings, etc.

4.Priority is given to ensuring that the satellite antenna is the highest point within 20 meters.

5.The installation base should be firm to avoid degradation of accuracy caused by wind.

6.For specific installation matters, you can also contact the company's after-sales video guidance.

Note: GNSS displacement monitoring is a high-precision displacement monitoring technology achieved by positioning satellites such as Beidou and GPS.Its monitoring accuracy strongly depends on the relative relationship between the reference station and the monitoring station and the electromagnetic environment.Excessive baseline distance will seriously affect the monitoring accuracy and even the data is invalid (for example, for baseline distances exceeding 2KM or even 10KM, the possible displacement accuracy due to the influence of the electromagnetic environment and terrain will be reduced to the 10 cm level, which is invalid for displacement monitoring).Therefore, in order to ensure measurement accuracy, the recommended baseline distance is within 500 meters.