A reverse positioning system and method
A positioning system and reverse technology, applied in the field of visible light communication, can solve problems such as difficulty in assessing and determining the degree of impact, electromagnetic interference, and hidden safety hazards in nuclear power plants
Active Publication Date: 2022-04-26
FUDAN UNIV +2
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Problems solved by technology
However, the electromagnetic waves generated by the aforementioned electromagnetic wave positioning device may cause electromagnetic interference to nuclear primary instruments, secondary protection and DCS systems, and the degree of influence is difficult to evaluate and determine, bringing serious safety hazards to nuclear power plants
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[0018] In order to make the object, technical solution and advantages of the present invention clearer, various embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. However, those of ordinary skill in the art can understand that, in each implementation manner of the present invention, many technical details are provided for readers to better understand the present application. However, even without these technical details and various changes and modifications based on the following implementation modes, the technical solution claimed in each claim of the present application can be realized.
[0019] A first embodiment of the invention relates to a reverse positioning system. The reverse positioning system of this embodiment receives and analyzes the visible light signal sent by the transmitter through the receivers fixed at two different positions, thereby extracting the distance and direction information of the ...
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The invention relates to the technical field of visible light communication, and discloses a reverse positioning system and a reverse positioning method. The system includes: a positioning resolver, a transmitter, and a fixed-position receiver; the transmitter is used to send visible light signals; the receiver is used to receive visible light signals from the transmitter, and determine the emission according to the received visible light signals The direction information and distance between the transmitter and the receiver; it is also used to send positioning data to the positioning resolver; wherein, the positioning data includes the direction information and distance between the transmitter and the receiver; the positioning resolver is used to process information from two different The positioning data of the receiver is used to obtain the location information of the transmitter. The invention utilizes visible light signals to realize positioning to solve the positioning problem in the electromagnetic sensitive environment, and the scheme has simple structure, simple calculation, easy implementation and low operating cost.
Description
technical field [0001] The present invention relates to the technical field of visible light communication, in particular to a reverse positioning system and method. Background technique [0002] With the development of science and technology, the application of positioning technology has become more and more extensive, which has brought huge social and economic benefits. Traditional mobile communication network-based Assisted Global Positioning System (Assisted Global Positioning System, referred to as A-GPS), Wireless Local Area Networks (Wireless Local Area Networks, referred to as WLAN), radio frequency identification (Radio Frequency Identification, referred to as RFID), purple Honeycomb (ZigBee), Bluetooth, Ultra Wide Band (UWB), ultrasonic positioning technology, etc., are widely used. However, during the positioning process of these wireless positioning technologies, the radio wave signal emitted by the positioning device will generate electromagnetic induction with...
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IPC IPC(8): G01S5/16G01S5/00
CPCG01S5/009G01S5/16
Inventor 迟楠
Owner FUDAN UNIV