Multi-level differential relay method and device of global navigation satellite system
A technology of global navigation satellites and relay devices, applied in the field of communications, to improve system reliability, reduce follow-up maintenance costs, and solve system bottlenecks
Active Publication Date: 2017-09-26
QIANXUN SPATIAL INTELLIGENCE INC
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Problems solved by technology
[0005] Aiming at the problems existing in the prior art, the present invention proposes a multi-level differential relay method. By introducing multi-level broadcast unit services, it solves the problem of infinitely expanding the number of broadcast unit servers without increasing the number of concurrent connections of the computing unit servers. Technical issues to support the demand of a large number of users (above 100,000 levels) to obtain differential correction numbers at the same time
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[0041] Hereinafter, the present invention will be further described in conjunction with the drawings and embodiments.
[0042] figure 2 and image 3 They are respectively a schematic diagram and a flow chart of the technical solution of the multi-level differential relay method of the global navigation satellite system of the present invention. From figure 2 and image 3 It can be seen that the steps of the multi-stage differential relay method of the global navigation satellite system of the present invention are as follows:
[0043] Step 1. Deploy a set of broadcast expansion modules in the broadcast unit, and add a new subscription relationship. The function of deploying and broadcasting the large-scale module is to forward the differential correction calculated by the computing unit to the broadcasting module of the broadcasting unit (a module that directly provides users with differential correction broadcasting services). Each broadcast module server corresponds t...
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The invention provides a multi-level differential relay method of a global navigation satellite system. A calculation unit calculates and obtains a differential correction number; the method comprises steps as follows: step 1, broadcast amplification modules are deployed in a broadcast unit and forward the differential correction number to the broadcast unit, and a server of each broadcast module corresponds to a virtual relay station set; step 2, the broadcast modules provide differential correction number broadcast services, and when the sum of users requesting the differential correction number exceeds the load of the server of a single broadcast module, at least one virtual relay station is picked to be configured in one broadcast amplification module; step 3, the broadcast amplification modules subscribe to the virtual relay station set picked in the step 2 from a calculation unit and request the differential correction number of the picked virtual relay station set; step 4, the server of each broadcast module requests data according to the differential correction number request by the user; step 5, demands of the hot spot region are met by dynamically adjusting the configuration of the broadcast amplification module.
Description
technical field [0001] The invention relates to the field of communication technology, in particular to a multi-level differential relay method and device for a global navigation satellite system. Background technique [0002] With the development and popularization of satellite positioning technology, computer network technology and communication technology, the public's demand for location-based services is becoming more and more prominent. In a differential relay method and device of a global navigation satellite system disclosed in the prior art, the broadcast area of the server is divided into multiple grid units and at least one differential relay station is set in each grid unit, and the server calculates each The differential correction number of the differential relay station, the position information and the differential correction number of the differential relay station are broadcast to the user terminal, so that the user terminal can use the location informati...
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Patent Timeline
Login to View More IPC IPC(8): H04L29/08H04L12/24H04B7/185
CPCH04B7/18519H04L41/0654H04L41/0816H04L67/1001
Inventor 李轲韡张体良张达
Owner QIANXUN SPATIAL INTELLIGENCE INC