基于无线通信和嵌入式技术，设计一种煤矿井下人员定位系统。
Based on the Wireless Communication and Embedded technology, a coal mine personnel positioning system was designed.
建立可靠实用的煤矿井下人员定位系统，对改善煤矿的安全生产管理有着重要的现实意义。
Establishing the safe and utility orientation system of the mine personnel in coal pit is of great significance for improving the safe production management of the coal pit.
本文首先介绍了煤矿井下人员定位系统的组成和工作原理，并给出了国内现有煤矿井下人员定位系统采用的主流技术。
Firstly, this paper introduces the structure and working theory of the underground personnel positioning system, followed by the main technology used in the system in China.
KJ271矿用人员定位系统具有传输距离远、大流量、超低功耗、高速识别移动标识物、快速的识别及其稳定的特点。
KJ271 underground staff positioning system with the features of far transmission distance, high flow, low-power, high-speed identification of mobile identity, fast identification and stability.
本文针对井下人员定位系统，深入研究了基于电磁波测距的精确定位方法，并提出了一套基于PTR8000的井下人员定位系统方案。
In this thesis, the EMW-based precise ranging technology was studied, a location system based on PTR8000 was proposed fulfilling coarse location.
但是现在，作为一种潜在的廉价的报警和定位系统，引来许多研究人员的研究。
But for now, its potential as a cheap alert and location system is what interests the researchers.
实时定位系统 (RTLS)使用无线技术（比如Wi-Fi、超宽带、RFID、蓝牙和 GPS）来实时识别并跟踪生产资源或人员的位置。
Real time locating systems (RTLS) use wireless technologies such as Wi-Fi, ultra-wideband, RFID, Bluetooth, and GPS to identify and track the location of items or people in real time.
举个例子，当你的网站客户群是定位于父母和孩子时，你就需要充分考虑到两个不同群里的使用行为。系统的相同之处是对于采购代理商的销售人员之间的连接。
The same would be true for a system aimed at connecting purchasing agents with sales staff.
但是Petschenik所定位的读者并不是系统测试人员，而是单元测试人员、功能测试人员、系统测试人员、开发人员、项目管理者、产品管理者，等等。
But Petschenik's intended audience isn't the system tester. It is the unit tester, the functional tester, the system tester, the developer, the project manager, product manager, etc.
尽管混沌表明动力学系统的障碍，但是定位混沌起源和观察它的发生可能允许研究人员去预测，也许甚至抵消某些结果。
Although chaos marks the disorder of a dynamical system, locating the origin of chaos and watching it develop might allow researchers to predict, and maybe even counteract, certain outcomes.
本文介绍了雷电监测定位系统的典型故障，以期对从事维修雷电监测定位系统的人员有所帮助。
This article introduces the representative malfunctions of the thunder measuring and orientation system, hoping it could help the operators who are engaged in the maintenance work.
针对目前矿井井下通信系统功能不完善，技术与实现复杂的现状，提出了一种基于井下人员定位的综合通信监控系统。
With the Problems of incomplete communication function and complicated techniques and realization in mine, an integrated communication system based on personnel orientation is developed.
结果该系统将无线传感器网络与传统安全监控系统有机结合，可实现被困人员定位、灾情趋势预测和最优逃生路径规划等功能。
The new system, combining with the traditional one, can realize the functions of locating the person, predicting the disaster trend, planning optimal trace and so on.
在矿山的日常作业以及矿难发生抢救遇难人员时，方便，快捷，定位精确的安全监控及搜救系统就显得尤为重要。
Therefore, the convenient and swift safety monitoring and searching system with accurate positioning capability is becoming especially important when mine accidents happen.
目前国内有一些基于RS485的故障定位系统，但系统的可靠性不高，给管理人员带来了不便。
Currently there are some fault location system based on RS485, but the reliability of the system is not high, inconvenienced to managers.
采用RFID技术的矿山井下人员跟踪定位系统能够对井下人员进行识别，利用计算机网络进行数据采集和传送。
The system for tracing and locating the staff in mine with RFID technique could identify the staff in mine, collect and transfer the data by computer Intranet.
加利福尼亚大学洛杉矶分校研究人员正在利用手机的全球定位系统(GPS)功能、摄像机和其他设备，通过安装不同软件实现不同目的。
UCLA researchers are using the phone's Global Positioning System (GPS) capabilities, cameras and other equipment, by installing different software to achieve different purposes.
现有的矿井安全监测监控系统是灾前预警系统，监测对象主要是环境安全参数、生产过程及生产工艺，不能实现井下人员的定位。
However, these existing systems cannot get positions of miners, which is one of the reasons for the frequent mine disasters and the low rescuing efficiency.
故障管理机制使得系统在某台服务器意外失效的情况下仍能为用户提供连续性的服务，并方便维护人员进行故障定位。
Fault management mechanism makes it possible for the user to use application services continually while the server it is using fails.
这个雷达系统，被称为合成孔径雷达或简称SAR，是用来弥补全球卫星定位系统的。卫星系统监听失事飞机或者被困人员所发出的紧急呼叫信号。
The radar, called synthetic aperture radar or SAR, is meant to complement a global satellite system that listens for electronic emergency beacons sent by wrecked planes or people in distress.
本文介绍了雷电监测定位系统的典型故障，以期对从事维修雷电监测定位系统的人员有所帮助。
This article introduces the representative malfunctions of the thunder measuring and orientation system, hoping it could help the operators who are engaged in the mai…
本文介绍了雷电监测定位系统的典型故障，以期对从事维修雷电监测定位系统的人员有所帮助。
This article introduces the representative malfunctions of the thunder measuring and orientation system, hoping it could help the operators who are engaged in the mai…
应用推荐