适用于电力生产环境的终端定位算法研究

The research of terminal location algorithm for electric power production environment is applied

终端定位技术在电力生产环境下具有广泛的应用需求。然而,以北斗,GPS等为代表的卫星定位技术在复杂电力生产环境下存在室内信号盲区,适用性较差。有鉴于此,本文以无线局域网室内定位技术为背景,针对传统接收信号强度指示RSSI及泰勒级数展开定位算法的潜在缺陷,提出了一套适用于电力生产环境的改进定位算法,服务于智能电网下的多样化的室内定位应用需求。具体的,通过引入高斯筛选,小波变换,校正泰勒级数展开等处理阶段,可以充分去除冗余噪声,优化计算结果,提高定位效率。测试结果表明,相对于传统的基于泰勒级数展开的定位算法,本文所提出的方案可以有效提高室内定位算法的可靠性以及定位精度,为电力生产环境下的终端定位需求业务提供更为精确的位置信息。

Terminal positioning technology has a wide range of application requirements in the power production environment. However,the satellite positioning technology represented by Beidou, GPS and so on has the presence of indoor signal blind zone in the complex power production environment, and the applicability is poor. In view of this, based on the background of WLAN Indoor Positioning Technology, aiming at the defects of the traditional potential received signal strength indicator RSSI and Taylor algorithm, proposed an improved positioning for power production environment algorithm in smart grid service under various indoor positioning applications. Concretely, by introducing Gauss filtering, wavelet transform and correcting Taylor series expansion, the redundant noise can be eliminated sufficiently, and the calculation results can be optimized and the location efficiency can he improved. The test results show that the relative positioning based on Taylor series expansion algorithm, the proposed scheme can effectively improve the reliability of the indoor positioning algorithm and positioning precision, business terminal positioning demand of electric power production environment to provide more accurate information~