GPS vehicle rental vehicles used in engineering production control room, fleet management, engineering work process supervision, installation and operation of smart GPS monitoring and dispatching systems, through the use of the best communications network, to build a production by the regulation of each site, vehicle dispatch, job scheduling situation, and coordinate site vehicles, combined with the existing construction site Puyang rental vehicle GPS monitoring system, a job line generates an intuitive scheduling timely and accurate GPS positioning of production scheduling system. With the increasing cost of construction of Puyang GPS vehicle leasing company, construction manufacturers require application of advanced scientific and modern management methods to ensure product quality, reduce production costs Puyang install GPS vehicle leasing company, establish a good corporate image, in order to achieve better results in the market competition. Engineering Vehicle Management System function 1, location tracking, multi-vehicle tracking real-time location. Continuous recording location of the default 30 seconds the vehicle. The recorded parameters include: speed, position, direction of travel, the alarm status. In the newly opened window simultaneously track to achieve the multi-car comparison. 2, speeding, fatigue driving safety monitoring speed alarm: vehicle speed can be set to different values. 3, track record and playback ● track to save six, if necessary, on CD-ROM backup. ● track playback: You can adjust the playback speed, pause and other operations. ● used to check the travel route of the vehicle, gas stations, toll information. 4, engineering vehicle scheduling ● telephone dispatch: the driver can be used to make or receive calls. ● Line Examiner: track playback can be checked through tolls, gas bills. GPS positioning is what causes the slow GPS positioning is generally slow because of a hardware problem, determine GPS positioning time is that it's time to start positioning time is the time to restart GPS receiver receives location determines the time required for now. For 20-channel receiver, if you locate near the last location of the cold start positioning time is usually 3 to 5 minutes, the hot start of 15 to 30 seconds. Cold start initial use; battery depletion resulting in loss of information ephemeris. GPS can not locate what is the reason the general case of GPS signal vulnerable buildings and metal barrier, so the use of GPS to be outdoors. If you can not locate in the car, if you have an external antenna, the GPS antenna is best placed in the roof, in addition, will also affect the auto film positioning of GPS devices. GPS positioning is not exactly what the reasons 1, GPS positioning system, regardless of vehicle positioning system, or personnel positioning system. Both civilian and military sub-two kinds. Because the GPS satellite positioning system used in the United States military and civilian difference in the signal, GPS positioning system we contacted all of this is to locate the root causes of the civil errors. 2, the map is accurate and detailed GPS positioning system is accurate also factors. 3, misunderstanding, positioning and positioning GPS positioning system on the electronic map in reality there is a gap in the electronic map is a coordinate point as a reference position, but in reality the coordinate points may be a building or other object. 4, GPS positioning system itself quality problems, incorrect installation may cause misalignment.