本文针对煤矿生产现场采用有线电缆进行数据传输的不足，通过分析802.11b(无线局域网技术)、HomeRF（家庭无线局域网技术）、IrDA（红外技术）和蓝牙技术等各种短距离无线通信技术后，根据煤矿现场的实际情况，选择了蓝牙无线通信技术来解决短距离数据传输的难题。蓝牙技术是一种短距离无线通信技术标准，由于其技术先进、标准开放、协议完备、功耗低等许多优点得到迅速发展。根据煤矿生产现场的实际要求，建立了蓝牙技术在煤矿数据传输的应用模型，并提出了基于蓝牙技术的无线数据传输系统总体方案。 本文通过分析蓝牙通信原理与协议规范，深入研究了蓝牙串口仿真协议（RFCOMM），以蓝牙串口应用框架为前提，确定了蓝牙替代串行电缆的实现模式。 本文以CSR公司的单芯片蓝牙模块为核心，设计了系统的硬件电路。其中蓝牙主设备由PC机与蓝牙通信单元组成，蓝牙从设备由单片机STC89C51控制。以蓝牙设备为基础构建了点对点的数据传输系统硬件平台。提出了基于串口仿真协议（RFCOMM）的软件算法流程。根据蓝牙串口应用框架，设计了系统应用程序并在系统硬件平台上实现。 通过测试，可以看出蓝牙模块RFCOMM服务功能正确完善。实验结果表明，系统性能基本稳定，能够实现10m范围的数据通信。

Given existing disadvantages of data transmission approaches based on the cable in the minefield, Bluetooth technology is selected to solve the difficulties of short distance after different short distance wireless communication technologies including 802.11b, HomeRF, IrDA, and the Bluetooth are analyzed. The Bluetooth technology is widely used because of its advanced technology, open and completed protocol, and low power cost etc. According to the need of minefield, several data transmission application models were established. And a scheme of system based on Bluetooth technology was presented in the paper. After analyzing the theory and protocol specification of the Bluetooth communication, RFCOMM protocol was studied in detail. A Bluetooth system model was established based on the Bluetooth Serial Port Application Framework, which replaced the serial cable. The hardware was designed based on the single-chip Bluetooth module from the CSR Company. The Bluetooth master device was composed of a PC and a Bluetooth communication unit. The slave one was based on microcontroller STC89C51. The hardware platform of system was built based on the Bluetooth devices to realize the point-to-point connection. The software arithmetic flow based on RFCOMM protocol was implemented. The whole system software was designed based on the Bluetooth Serial Port Application Framework. Furthermore, it was implemented on the hardware platform of the wireless data transmission system. The testing results showed that the RFCOMM service function of Bluetooth module was correct and perfect. It also showed that the system was stable and could achieve data transmission within 10 meters.