全源矿井定位:一种智能煤矿位置服务新范式

矿山动目标定位系统为煤矿智能化建设提供基于位置的服务。而传统的矿井定位系统中定位信标与定位标签之间大多采用单一或组合通信技术,结构不灵活,覆盖范围受限,鲁棒性不高,定位精度有限;使用单一或组合测距技术,无法根据使用场景的不同自适应选择最优测距技术;位置求解算法固定,无法根据使用场景的不同和信号变化自适应选择最优求解算法。提出了全源矿井定位新范式,可根据定位环境和目标承载平台的变化,从所有可用定位信号测量设备中动态选择满足当前需求的最优设备组合,自适应地从可用的测距算法、位置解算算法、结果优化算法中选择最优的算法组合,计算出目标节点的最优位置。给出了全源矿井定位系统架构,探讨了矿井中可用的定位信号测量设备和可用于定位的测量属性值类型,对比了单一矿井定位与全源矿井定位在定位服务器方面的功能差异。研究了全源矿井定位中的3项关键技术:统一定位框架技术,旨在解决全源定位的模块化、组合式、可扩充需求;全源定位信息融合技术,对测量属性值进行有机组织,达到提高定位精度的目的;通信定位一体化技术,通过无线通信网络本身所具有的定位能力,简化全源矿井定位系统的设计并提高定位精度。提出了基于“端-边-云”的全源矿井定位系统实施架构,以便与煤矿智能化的主流建设模式相适应,大幅降低实施难度和系统成本。

All source mine positioning:a new paradigm for intelligent coal mine positioning service

Mine moving target positioning system provides location-based services for intelligent construction of coal mines.However,most of the traditional mine positioning systems use single or combined communication technologies between positioning beacons and positioning tags with inflexible structure,limited coverage,low robustness and limited positioning accuracy.Using single or combined ranging technology,the optimal ranging technology cannot be selected adaptively according to different usage scenarios.For the position solution algorithm is fixed,the optimal solution algorithm cannot be selected adaptively according to different usage scenarios and signal changes.Hence,a new paradigm for all source mine positioning service is proposed,which can dynamically select the optimal combination of devices that meets current needs from all available positioning signal measurement devices according to the changes of the positioning environment and the target bearing platform.The paradigm can select the optimal combination of algorithms from the available ranging algorithms,positioning solving algorithms and result optimization algorithms adaptively to calculate the optimal position of the target node.In this study,all source mine positioning system architecture is designed,the available positioning signal measurement devices in mines and the types of measurement attribute values that can be used for positioning are discussed,and the functional differences of positioning servers between single mine positioning and all source mine positioning are compared.This paper discusses three key technologies in all source mine positioning service:unified positioning framework technology,which aims to meet the modular,combined and expandable needs of all source positioning;all source positioning information fusion technology,which organizes the measured attribute values to improve positioning accuracy;communication and positioning integration technology,which simplifies the design of all source mine positioning system and improves positioning accuracy through the positioning capability of wireless communication network itself.This paper proposes the implementation architecture of a terminal-edge-cloud based all source mine positioning system in order to fit in with the mainstream construction mode of intelligent coal mine and reduce the implementation difficulty and system cost significantly.