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  本文選題：人員定位　切入點：CAN總線　出處：《哈爾濱理工大學》2014年碩士論文　論文類型：學位論文

【摘要】：隨著我國經(jīng)濟的持續(xù)高速發(fā)展，對各種礦產(chǎn)資源的需求與日俱增，尤其是作為我國主要能源礦產(chǎn)之一的煤炭資源。我國煤炭行業(yè)的作業(yè)方式主要是井下開采，國家在煤炭安全生產(chǎn)上給予高度重視，確立了礦井必備的六大安全避險系統(tǒng)—監(jiān)測監(jiān)控、人員定位、通信聯(lián)絡、緊急避險、壓風自救、供水施救。其中人員定位系統(tǒng)是集井下人員管理、跟蹤定位、災后急救、安全預警等于一體的綜合性應用系統(tǒng)。但由于技術與實際情況相脫離，設備的穩(wěn)定性不高，人員定位系統(tǒng)還存在諸多問題。因此，對深入研究井下人員定位系統(tǒng)仍具有重要的意義。 本文在對我國現(xiàn)有的井下人員定位系統(tǒng)進行深入研究的基礎上，結合我國煤礦行業(yè)的實際情況，設計了基于CAN總線的井下人員定位系統(tǒng)。該系統(tǒng)采用RFID技術進行前端信息采集，以CAN總線為核心網(wǎng)進行數(shù)據(jù)傳輸，井下通信分站與上位機的通信則通過工業(yè)以太網(wǎng)來實現(xiàn)。CAN總線技術作為關鍵技術，在系統(tǒng)中起到承上啟下的作用，其特點是結構簡單、實時性強、可靠性高。尤其是CAN總線的自動仲裁機制特別適合應用于井下人員定位系統(tǒng)。 本設計將整個系統(tǒng)分為三個模塊進行處理，即標識卡射頻識別模塊、讀卡分站模塊和CAN轉以太網(wǎng)模塊。完成了人員身份等信息經(jīng)由射頻發(fā)送，讀卡分站接收到射頻信號并加載位置及時間信息，后經(jīng)由CAN總線網(wǎng)絡發(fā)送到CAN轉以太網(wǎng)模塊中，定位信息在此模塊中轉換為以太網(wǎng)信號發(fā)送給上位機，即完成人員定位功能。該系統(tǒng)還具備上位機對井下人員調度，預警等功能。針對三個子模塊要實現(xiàn)的功能，系統(tǒng)采用具有豐富的外設接口，以ARM Cortex-M3為內核的STM32微控制器作為主要控制芯片；射頻芯片采用nRF24LE1和nRF24L01+芯片，其中nRF24LE1具有高集成度，內部集成增強型51內核控制器；以太網(wǎng)芯片采用高集成度的ENC28J60，通過控制器的SPI接口即可完成對其配置。經(jīng)過大量實驗測試，該系統(tǒng)能夠實現(xiàn)設計功能，，具有良好的實時性和穩(wěn)定性。
[Abstract]:With the sustained and rapid development of China's economy, the demand for various mineral resources is increasing day by day, especially the coal resources, which are one of the main energy minerals in our country. The state attaches great importance to the safety of coal production, and has established six necessary safety and risk aversion systems for coal mines-monitoring, monitoring, personnel positioning, communication and liaison, emergency risk avoidance, and air pressure and self-rescue. The personnel positioning system is a comprehensive application system that integrates underground personnel management, tracking and positioning, first aid after disaster and safety warning. However, because the technology is divorced from the actual situation, the stability of the equipment is not high. There are still many problems in the personnel positioning system, therefore, it is still of great significance for the further study of the underground personnel positioning system. Based on the in-depth study of the existing downhole personnel positioning system in China, this paper combines the actual situation of the coal mine industry in China. The downhole personnel positioning system based on CAN bus is designed. The system adopts RFID technology to collect front-end information and uses CAN bus as the core network for data transmission. The communication between the underground communication sub-station and the host computer is realized by industrial Ethernet as the key technology, which plays a connecting role in the system. It is characterized by simple structure and strong real-time performance. High reliability, especially the automatic arbitration mechanism of CAN bus is especially suitable for underground personnel positioning system. This design divides the whole system into three modules to process, namely, the RFID module, the sub-station module and the CAN to Ethernet module. After receiving the radio frequency signal and loading the position and time information, the card reading sub-station transmits the position and time information to the CAN to Ethernet module via the CAN bus network, in which the positioning information is converted to the Ethernet signal and sent to the upper computer. The system also has the functions of the upper computer to the downhole personnel dispatching, warning and so on. In view of the functions to be realized by the three sub-modules, the system adopts a rich peripheral interface. STM32 microcontroller based on ARM Cortex-M3 is used as the main control chip, nRF24LE1 and nRF24L01 chips are used in RF chip, in which nRF24LE1 has high integration and internal integration enhanced 51 kernel controller. The Ethernet chip uses ENC28J60 with high integration, which can be configured through the SPI interface of the controller. After a lot of experiments, the system can realize the design function, and has good real-time and stability.
【學位授予單位】：哈爾濱理工大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TD76

【引證文獻】

相關碩士學位論文 前1條

1 張程遠;基于無線網(wǎng)絡傳輸?shù)木氯藛T定位[D];太原科技大學;2015年

本文編號：1559101