Fusion positioning method based on radio over fiber technology, and fusion positioning system based on radio over fiber technology

Abstract

The present invention discloses a fusion positioning method based on a radio over fiber technology, and a fusion positioning system based on the radio over fiber technology. The fusion positioning system based on the radio over fiber technology is composed of a fusion positioning device 01 based on a radio over fiber communication technology, a plurality of client devices 02 supporting a fusion positioning identification function, and a plurality of relay devices 03 supporting the fusion positioning identification function. The fusion positioning device 01 receives a fusion positioning service request, measures, or obtains the fusion positioning service information of the fusion positioning service objects via the relay devices 03, wherein the types of the objects comprise a single fusion positioning service object 04, a fusion positioning service group 05, and fusion positioning service users 06, decides a positioning service method, and provides the fusion positioning service by the method. According to the present invention, the fusion processing of various positioning information can be realized while not being limited by software; an optimal positioning method can be analyzed and decided intelligently; the complexity of a device is simplified, so that the structure of the device is miniature; real-time update services are provided; the intelligent positioning service by taking the people, the objects, or the people and objects as the centers is realized better.

Description

[0001] technical field [0002] The present invention relates to the communication field, in particular, to a fusion positioning method and system based on radio-over-fiber technology. Background technique [0003] Among the traditional positioning requirements, it is mainly for outdoor navigation applications for mobile phones and cars. In addition to the GPS navigation system, OTDoA (Observed Time Difference of Arrival, the terminal measures the observed time difference between the arrival of signals from different base stations) and E-CID (Enhanced Cell-ID) are defined in the cellular network 3GPP LTE R9 specification. And A-GNSS (Assistant-Global Navigation Satellite System, network-assisted global navigation satellite system) three positioning methods. Among them, E-CID has low positioning accuracy and low cost; OTDoA is used when there is no GPS receiving device in the network and requires high positioning accuracy; A-GNSS has the highest positioning accuracy, but has...

AI Technical Summary

Problems solved by technology

[0004] However, all of the above positioning methods suffer from relatively isolated limitations to varying degrees.

For example, although the A-GNSS positioning method of the cellular system combines GPS positioning technology, it is limited to a software-only solution, and the efficiency in providing positioning services is low, because the positioning process continues to occur multiple times, which significantly increases the processing time; at the same time , problems such as error correction and retransmission in multiple positioning will also affect the final positioning accuracy

For another example, zigbee technology and Z-Wave are relatively independent sensing systems with cellular networks, and their respective positioning methods cannot be effectively combined.

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