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Processing method against signal overlay in guide and navigation system

A processing method and signal technology, which are applied to the processing field of signal cross coverage, can solve the problems that the coverage areas of the transmitted signals cannot overlap, the guide plane cannot distinguish, and the signals of the marking device are easy to cross and cover, so as to avoid the mutual interference of the transmitted signals.

Active Publication Date: 2008-07-02
上海真灼科技股份有限公司
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AI Technical Summary

Problems solved by technology

In the existing radio frequency guide technology, it is required that the signal coverage area of ​​the identification device cannot overlap, that is, the transmitted signal cannot be cross-covered.
If the transmission signals are cross-covered, two marking devices at the same frequency point in the overlapping area transmit and interfere with each other at the same time, causing the guide machine to not receive the correct identification number of the marking device and cannot play; when the two marking devices do not transmit at the same time, the tour guide machine will After receiving two correct identification numbers of the identification device, the tour guide machine cannot distinguish which identification device area it is in, and cannot select the playback content or frequently switch the playback content
Such problems will bring great difficulties to on-site installation, especially in applications such as museums, where the exhibits themselves are small and the booths are close, and the signals of the signage devices are easily cross-covered

Method used

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  • Processing method against signal overlay in guide and navigation system
  • Processing method against signal overlay in guide and navigation system
  • Processing method against signal overlay in guide and navigation system

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Embodiment Construction

[0033] The present invention will be further described below in conjunction with the embodiments and the accompanying drawings.

[0034] refer to figure 1 , the processing method when signals are cross-covered in the tour guide system according to the present invention, including the method for transmitting signals by the identification device and the method for receiving and processing signals by the tour guide machine,

[0035] The method by which the marking device emits a signal:

[0036] (1) The cycle period of the signal transmission by the identification device is set as T, and the signal transmission is completed within the cycle T;

[0037] (2) Set up the marking device to transmit signals within the transmission time range t, and make the transmission time range t within each cycle T, that is, the transmission time range t≤ cycle T;

[0038] (3) Set up n time periods S within the launch time range t, that is, t=S 1 +S 2 ,…+S n (1, 2, ..., n is a natural number);...

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Abstract

The invention relates to a treatment method when a signal is cross-covered in tour guide system. The identify unit of invention is set within a certain scope, which can randomly launch in each time scale, thus avoiding launching a signal of the identify unit to be mutually interfered; and a tour machine is set to analyze identifiers of the identify unit within a period of time, and air loss can be calculated; the little air loss stands for short distance; therefore, a covering region of relevant identify unit which the tour machine belongs to can be judged so as to provide relevant service. The invention overcomes the shortcoming of mutual interference caused by simultaneously launching signal at the same frequency points of the identify unit; while the tour machine receives a plurality of correct identifiers in sequence, the invention can exactly identify which region, at which the tour machine self is located, is covered by the indentify unit, and can provide relevant service.

Description

【Technical field】 [0001] The invention relates to a method for processing radio frequency signal cross coverage, in particular to a processing method for signal cross coverage in a tour guide system. 【Background technique】 [0002] The current electronic tour guide system equipment includes button tour guide system, infrared tour guide system, radio frequency tour guide system and other equipment. Among them, the radio frequency tour guide system equipment has the advantages of no need for tourists to operate and good signal coverage. , is very popular and represents the development direction of the electronic tour guide system. [0003] The radio frequency tour guide system equipment includes a tour guide machine and an identification device. The identification device continuously emits wireless signals. The tour guide machine recognizes the identification device and plays relevant audio explanations and other content according to the identification number of the identifica...

Claims

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Application Information

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IPC IPC(8): H04Q7/38H04B7/26G09F25/00
Inventor 王建伟
Owner 上海真灼科技股份有限公司
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