煤礦安全監(jiān)控系統(tǒng)外文翻譯--煤礦環(huán)境監(jiān)測系統(tǒng)與基于zigbee-compliant平臺定位功能

1、中文 中文 4940 字出處： 出處：Wireless Communications, Networking and Mobile Computing (WiCOM), 2011 7th International Conference on. IEEE, 2011: 1-4A Coal Mine Environmental Monitor System with Localization Function Based on ZigBe

2、e-Compliant PlatformDongxuan YangCollege of Computer and InformationEngineeringBeijing Technology and BusinessUniversityBeijing, ChinaYan ChenCollege of Computer and InformationEngineeringBeijing Technology and BusinessU

3、niversityBeijing, Chinabjchy2003@163.comKedong WangCollege of Computer and InformationEngineeringBeijing Technology and BusinessUniversityBeijing, ChinaAbstract—This paper describes and implements a new type of coal mine

4、 safety monitoring system, it is a kind of wireless sensor network system based on ZigBee technology. The system consists of two parts underground and surface. Wireless sensor networks are constituted by fixed nodes,

5、mobile nodes and a gateway in underground. PC monitoring software is deployed in the surface. The system can not only gather real-time environmental data for mine, but also calculate the real-time location of mobile n

6、odes worn by miners. Keywords： ZigBee; localization; wireless sensor networks; coal MineI.RESEARCH STATUSAs an important energy, coal plays a pivotal role in the economic development. Coal mine monitoring system, is the

7、important guarantee for coal mine safety and high efficiency production [1]. In order to ensure the safe operation, the installation of environment monitoring node in tunnels to real-time detection is very important. How

8、ever, commonly used traditional monitoring node wired connection to obtain communication with the control system, this node exist wiring difficulties, expensive and other shortcomings. In contrast, wireless sensor node c

9、an be easily with current mine monitoring network connection, and good compatibility, facilitate constituted mine gas monitoring network, to suit various size of mine applications. Since wireless nodes are battery powere

10、d, so completely out of the shackles of the cable, shorten the environment whit a special hardware circuit. Node photo are shown in Fig. 1Then wireless microcontroller CC2530 chip is the core processor of the node devic

11、e, it can constitute a ZigBee network with very few peripheral circuits. The CC2530 is an IEEE 802.15.4 compliant true System-on-Chip, supporting the proprietary 802.15.4 market as well as the ZigBee, ZigBee PRO, and Z

12、igBee RF4CE standards. Unlike other wireless chip, CC2530 built-in 8051 monolithic integrated circuits kernel, therefore we no longer need to use a single MCU to control the circuit, and this save us a lot of cost [5]

13、. A. Mobile NodeThe mobile node is the end device of a ZigBee network that can be carried by miner; it should be a portable and low power consumption node. So the mobile node we designed is only as small as a mobile ph

14、one, and it is by built-in lithium ion battery power supply. In power loss, the core processor CC2530 is a low power consumption chip, when it is in the sleep mode, it only need to use less then 1uA work current. In o

15、rder to reduce power consumption as much as possible on the display, a 100*32 pixel matrix with no backlighting LCD screen was used. The battery’s capacity of the mobile node is 1500mAh, so it is enough to meet the min

16、er’s long hour works in the underground. The battery charge management chip is TP4057, the maximum charge current can up to 500Ma.Figure 1. Node photo.The mobile node circuit includes the gas concentration sensor MJ4.0

17、 and temperature sensor PT-1000. As far as we know, many wireless sensor platforms use the digital type sensor. The communication between the digital sensor and the MCU need strict timing requirements. But considering

18、the actual application, the wireless MCU usually has a real-time operating system in general, if we use the microcomputer to simulate the strict timing, it will affect the real-time of whole operating system. These two