Zhengzhou Double Electronic Car GPS electronic map of the specific content should include the following: (1) road network. It is the most important vehicle monitoring and dispatching system electronic map of how much an integral part of the car to install GPS, is a source of data on the basis of the entire electronic map, but also the path planning, map matching, map assisted positioning algorithm. In addition to the physical characteristics of the road and geometric properties of the external units installed GPS car how much money there is to express the topological relations section of the road network, speed limits, traffic class of vehicle, a single existing line, closed to traffic routes, traffic information and other related prohibited turn. (2) blocks. (3) river and rail. (4) installation of car GPS geographic features much money, parks, green land and lakes. (5) the feature point government agencies, financial services, post offices, hospitals, research institutions, universities, enterprises, hotels, tourist sites, integrated commercial, entertainment, bus stations, train stations, gas stations and other outlets and . (6) Administrative division. Double electronic technology company Zhengzhou cement tanker GPS vehicle monitoring system to achieve real-time vehicle monitoring: spices, unloading, stops, driving speed, driving mileage, driving history trajectory monitoring, voice intercom system can also be fitted. GPS monitoring system main functions selectable via GPRS or SMS or GPRS / SMS reporting messages. Offers a variety of terminal equipment installation process (monitoring center entry, installation tools, SMS registration), simplifying installation registration procedure. Time, location, speed, direction, mileage, status and other information timing, distance, given the direction of 24-hour real appealed. Overspeed alarm prompts warning: You can press at different times and in different sections of the speed monitoring. Driver fatigue warning: fatigue driving according to a preset alarm to remind fatigue driving time. Electronic fence alarm: When the vehicle into the area, the region, and timely alarm to the monitoring center, and is able to judge whether the vehicle speed in the region and to the alarm monitoring center. Deviation alarm lines: the line for vehicle real-time monitoring and management, automatic vehicle access to the site to determine the offset set route into the dangerous sections and so on. How much car GPS installed, how much GPS, electronic Double Double provided by Electronic Technology Co., Ltd., Zhengzhou. Double Electronic Technology Co., Ltd., Zhengzhou (www.zzgprs.com) strong, credible, in Zhengzhou, Henan Province of GPS systems and other industries has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Double electronic and you hand into the brilliant, for a better future!