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Post-disaster search and rescue terminal positioning method and life detecting device

A life detection and terminal positioning technology, applied in the field of post-disaster search and rescue life detection, can solve the problems of wireless signal multipath effect propagation rate attenuation, inaccurate estimation of propagation path attenuation value, difficulty in establishing propagation model, etc.

Inactive Publication Date: 2012-07-25
北斗羲和科技发展(北京)有限公司
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] In order to solve the problems of inaccurate estimation of the attenuation value of the propagation path, difficulty in establishing the propagation model, multipath effect of the wireless signal, and attenuation of the propagation rate in the existing technology, the embodiment of the present invention provides a Post-disaster search and rescue terminal positioning method and life detection device

Method used

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  • Post-disaster search and rescue terminal positioning method and life detecting device
  • Post-disaster search and rescue terminal positioning method and life detecting device
  • Post-disaster search and rescue terminal positioning method and life detecting device

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Embodiment 1

[0074] The post-disaster search and rescue terminal positioning method provided by Embodiment 1 of the present invention is specifically as follows figure 2 shown, including the following steps:

[0075] Step 10, at least four life detection devices simultaneously receive the registration access signal of the terminal.

[0076] The life detection device provided by the embodiment of the present invention is suitable for such as figure 1 The basic working principle of the life detection system shown is that the life detection device simulates the operation mode of the base station of the public mobile communication network, sends a control signal on the forward link control channel of the base station of the public mobile communication network, and induces the terminal receiving the control signal Initiate registration access to register mobile phone information.

[0077] Specifically, multiple life detection devices are required to form a life detection network, and through...

Embodiment 2

[0117] Such as image 3 As shown, Embodiment 2 of the present invention provides a life detection device, which includes a receiving unit 100, an initial positioning unit 200, a correction unit 300 and a comparison output unit 400, specifically as follows:

[0118] The receiving unit 100 is configured to receive a terminal registration access signal and send it to the initial positioning unit 200 .

[0119] Here, since at least four life detection devices are networked to locate the terminal, all life detection devices need to receive the registration access signal of the terminal.

[0120] The initial positioning unit 200 is configured to calculate the location coordinates of the terminal according to the registration access signal of the terminal.

[0121] Here, the calculated position coordinates of the terminal are initial position coordinates and need to be corrected.

[0122] The correction unit 300 is configured to predict and correct the position coordinates calculat...

Embodiment 3

[0128] Such as Figure 4 As shown, the initial positioning unit 200 in the life detection device provided in the above-mentioned embodiment 2 includes a measurement subunit 201, a distance difference calculation subunit 202 and an initial coordinate calculation subunit 203, specifically as follows:

[0129] The measurement subunit 201 is used to summarize and calculate the distance between the terminal and different life detection devices.

[0130] Here, after each life detection device receives the registration access signal of the terminal, it only needs to send the relevant information in the registration access signal to the main life detection device. The measurement subunit 201 is used to collect these information and use the Calculate the distance between different life detection devices and the terminal.

[0131] The distance difference calculation subunit 202 is used to calculate the distance difference between two life detection devices and the terminal.

[0132] H...

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Abstract

The invention discloses a post-disaster search and rescue terminal positioning method, belonging to the technical field of post-disaster search and rescue life detection. The method comprises the following steps of: simultaneously using at least four life detecting devices to receive registration access signals of a terminal; calculating position coordinates of the terminal according to the registration access signals of the terminal; predicting and correcting the position coordinates calculated at the current time according to the position coordinates calculated by the registration access signals at the continuous two times to get the corrected position coordinates; and comparing the corrected position coordinates with the position coordinates, if the differences are smaller than preset values, taking the corrected position coordinates as positioning results of the terminal. The invention further provides a life detecting device. According to the method and life detecting device disclosed by the invention, more precise positioning results of the terminal can be obtained by positioning the terminal and revising the positioning results with time difference and intensity difference, thus the position of the terminal can be positioned precisely, and the accuracy and efficiency in post-disaster search and rescue life detection can be further improved.

Description

technical field [0001] The invention relates to the technical field of post-disaster search and rescue life detection technology, in particular to a post-disaster search and rescue terminal positioning method and a life detection device. Background technique [0002] Natural disasters have the characteristics of instantaneous occurrence, severe damage, difficulty in monitoring and forecasting, and far-reaching social impact. For example, destructive earthquakes, landslides and other disasters have caused huge harm and losses to national economic construction and people's life and property safety. Numerous cases of natural disasters at home and abroad prove that the technical level of post-disaster emergency rescue is extremely important for reducing disaster losses. [0003] At present, our country is still very weak in disaster emergency rescue technology, mainly relying on manpower, search and rescue dogs and life detection devices for life detection to find survivors. Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W64/00G01S5/02
Inventor 邓中亮万能孙晓飞吕子平陈才湖肖延南王晓冠施浒立韩淼
Owner 北斗羲和科技发展(北京)有限公司
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