In order to solve the personal injury accidents when the vehicle drives in the mine, this paper designs and developments an vehicle collision-avoidance system based on UWB Wireless Sensor Networks which can solve the personal injury accidents. The UWB is an emerging technology designed at short range and high transmission rate which can offer a fine resolution to evaluate distance. This paper presents the vehicle collision-avoidance system composition which consists of both the hardware composition and software design. It also presents the principle of ranging algorithm which is used to implement the function of vehicle collision-avoidance. The vehicle collision-avoidance system has been tested in the mine and the personal injury accidents have greatly decreased. Therefore, the system will have a fine application prospects in mine.

This paper designs a high performance wireless communication access point based on 802.11n for mining for low communication speed and low transmission power in mine. The access point is composed of hardware layer and software layer. This access point supports double frequency at 2.4GHz and 5GHz, and it can reach communication speed at 300Mbps, which improved significantly performance of wireless communication for mining. We tested and optimized the access point in Lab. Finally we tested the access point in industry, the comprehensive test result showed that the access point can satisfy wireless communication requirements for mining.