One-machine multi-antenna GNSS signal switch

Abstract

The invention relates to a one-machine multi-antenna GNSS signal switch, comprising a plurality of antenna interfaces, two serial ports and a power interface; the antenna interfaces are used for wiredconnection with a positioning antenna through antenna cables, and the power interface and the serial ports are connected to a monitoring host; and the switch further comprises a singlechip and an antenna switch, wherein the singlechip controls the antenna switch to be switched to a monitoring antenna to be connected. By setting the plurality of antenna interfaces and the antenna switch, a plurality of displacement monitoring points share one monitoring host and can be automatically switched between the connected monitoring antennas according to the set frequency, and the monitoring and positioning data of different antennas is transmitted to the monitoring host, so that one monitoring host monitors the displacement of the plurality of monitoring points. The switch used in a monitoring system with dense monitoring points can greatly reduce the monitoring and later operation and maintenance costs. Compared with the conventional monitoring equipment, the switch can increase the cost input to the hardware, power supply, communication and construction, and improve the stability of the monitoring equipment.

Description

technical field [0001] The present invention relates to the technical field of satellite positioning monitoring, more specifically, relates to a monitoring host that can use a global satellite navigation system to share a plurality of displacement monitoring points, and can automatically switch between the connected monitoring antennas according to the set frequency. A one-machine multi-antenna GNSS signal switch. Background technique [0002] With the wide application and promotion of GPS, GLONASS, Beidou and other satellite positioning systems in surveying, navigation, communication and many other fields, the development of technology has gradually matured, and good development has also been achieved in the field of satellite positioning and monitoring, especially in geotechnical engineering. monitoring has been widely used. [0003] In the existing satellite positioning monitoring system, the positioning antenna is connected one-to-one with the monitoring host, and each ...

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Problems solved by technology

[0004] At present, although some technologies have proposed some displacement monitoring technical solutions for geotechnical engineering monitoring, the following problems and deficiencies generally exist: the traditional monitoring method has a one-to-one connection between each monitoring antenna and the monitoring host, and each monitoring point is Independent hardware, power supply, communication, and construction are required, and the monitoring cost is too high, and each monitoring station needs to be maintained separately in the later stage. The workload and cost of later maintenance are large, and the stability of the equipment is difficult to guarantee

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