Method for improving accuracy of UWB ranging in firearm off-location alarm system

A technology for alarm system and distance measurement accuracy, which is applied in the field of improving UWB distance measurement accuracy in the gun off-position alarm system. Accuracy and alarm accuracy, improve ranging stability, and reduce the effect of ranging error

CN109655824AInactive Publication Date: 2019-04-19BEIJING BIXING TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2019-04-19
Estimated Expiration
Not applicable · inactive patent

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Abstract

A method for improving the accuracy of UWB ranging in a firearm off-location alarm system is disclosed. The method comprises: a UWB module installed on a beacon in a firearm sends a ranging request pulse signal to a sentry box base station at a first moment, and a UWB module of the sentry box base station receives the request pulse signal at a second moment, and sends a response signal to the beacon at a third moment, the UWB module of the beacon receives the response signal at a fourth moment, and sends an end signal at a fifth moment, and the sentry box base station UWB module receives the end signal at a six moment; two-way flight time of the pulse signal between the beacon and the sentry box base station is calculated based on the first moment, the second moment, the third moment, thefourth moment, the fifth moment, and the sixth moment, so that the UWB ranging information is determined, wherein the UWB ranging information is about a distance from the beacon to the sentry box basestation; and filtering treatment is performed on the UWB ranging information data by adaptively selecting a corresponding parameter configuration based on multiple groups of different parameter configurations.
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Description

technical field

[0001] The invention relates to a method for improving UWB (Ultra Wideband, ultra-wideband) ranging accuracy, in particular to a method for improving the UWB ranging accuracy in a gun off-position alarm system. Background technique

[0002] In recent years, there have been several cases of snatching and theft of military and police guns and ammunition on duty in various countries, which has brought harm to the personal safety of the people and social stability. On-site management of guns and off-site alarms have become problems that governments of all countries need to solve. Accurately displaying the current position of the gun on duty from the sentry box, quickly and accurately alarming when the gun is out of position, knowing the dynamic information and abnormal situation of the gun in real time and responding quickly have become an important application field of ranging technology.

[0003] At present, RFID, a common ranging technology, has related paten...

Examples

Embodiment Construction

[0029] According to the embodiment of the present invention, a method for improving the UWB ranging accuracy in a gun out-of-position alarm system is disclosed. In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of embodiments of the invention. It will be apparent, however, to one skilled in the art that embodiments of the invention may be practiced without these specific details.

[0030] figure 1 A system architecture diagram 100 of a gun out-of-position alarm system based on UWB technology according to an embodiment of the present invention is shown. Such as figure 1 As shown, the firearm out-of-position alarm system according to the present invention includes a base station 103 installed in a sentry box 101 and a beacon 105 installed in a firearm 107 . Although a sentry box base station and a beacon are schematically shown in the figure, and the background business processing pa...