基于复合定位技术的微型定位装置

摘要

ABSTRACT:With the normalization of armed patrols, the police gun is used more frequently, resulting in increasingly higher concerns on gun safety. In order to regulate the use of ifrearms including the police gun, it is urgent to develop a positioning device to timely position the on-using ifrearms and accurately locate a lost gun. In this paper, a new micro positioning device, developed by completely own innovation based on multi-mode integrated positioning technology, is introduced. GPS, GSM and RFID technology are integrated to manufacture such a micro composite locator, with GPS and GSM functions to track and locate the guns in medium-and-long distance and RFID to search and discover the guns within near range. This device uses TOF (time of flight) dual-way locating technology, making the distance between two nodes measured through the round trip time from two asynchronous transceivers. In practical application, the measurement may be inlfuenced by factors of temperature, wireless signal, obstruction, transmission mode and others related. Upon test, this device is a reinforcing instrument for the existing positioning system to look for guns within near range, able to improve the accuracy by integrated positioning and achieve the guns’ tracking at full range. The composite positioning device can be used not only for police ifrearms positioning but also the location of civilian vehicles and valuables.%随着武装巡逻常态化的推行，警用枪支使用频率大幅上升，由此产生一系列枪支使用安全性问题。为规范枪支使用，急需研制基于复合定位技术的定位装置，以解决枪支日常定位管理及枪支丢失后精确定向查找的难题，从而提高枪支使用的安全性。本文介绍一种自主研发的复合精准定位系统，将GPS、GSM和RFID技术进行系统整合，制成微型复合定位装置，实现中远距离使用GPS和GSM对枪支跟踪和定位，以及近距离使用RFID技术对枪支定向精确查找。经过试验验证，本装置是现有定位系统近距离查找的有力补充手段，能提高综合定位精确度，实现对枪支全方位的定位追踪。该复合定位装置除可用于警用枪支定位外，还可在民用车辆、贵重物品等定位管理方面推广应用。