Navigator Theory

The basic theory of GPS positioning is based on high speed moving satellite instantaneous position as fundamental data to count, using the method of spatial distance resection to determine the specific location

The basic theory of GPS positioning is based on high speed moving satellite instantaneous position as fundamental data to count, using the method of spatial distance resection to determine the specific location. The analysis of GPS navigator’s working theory is as followed:

Theory of monitoring system:

With the rapid development of economy, the ownership sharp rose in society, the vehicle management and deploy of association unit become more outstanding. Meanwhile, carjacking, car theft and other activities that endanger public security and destroy the stability of the society are rising year by year. Vehicle safety monitoring management system can not only offer the relevant associations and individuals vehicle dynamic control, improve the scheduling management ability, can also improve the emergency rapid response ability of the public security department to deal with crime and emergency events.

The monitoring management system for vehicle’s safety is aimed to achieve real-time monitoring about  vehicle’s location, status and other dynamic information in the larger area, to deal with vehicles operating problems timely, improve the effective utilization of limited resources, guarantee the driver’s personal safety at the same time. At the same time, it can cross-regionally provide effective monitoring, emergency rescue and all kinds of information services for the moving targets that has strong maneuverability and large quantity.

GPS theory of vehicle monitoring system

Vehicle GPS monitoring system consists of three parts, namely: car host, server and client terminal. On-board host mainly determine the position of the moving target via the global positioning system (GPS), and use the mobile communication network and the global Internet to upload data. Server receives the data and storage. The client terminal through the global Internet access server extract map and vehicle positioning information to provide perfect service for the user.

Theory of working system is: GPS receiver that installed on the vehicle to calculate the current position of the vehicle according to the received satellite information, communication controller get the position, speed and time information from output signals from the GPS receiver, combined with vehicle identification information such as the form data packets, and then sent to the monitoring center through mobile operators of GPRS network. The monitoring center server receives the data from the vehicle machine , and extract the location information according to the car number and group number of the vehicles, displayed in the electronic map of monitoring center. At the same time, the system administrator in control center can query the running status of each vehicle and reasonably dispatch vehicles according to the number of cars.

The theory of vehicle monitoring system determines that the system can stably work only when depending on three network: America’s global satellite positioning system, China mobile GPRS network, the Internet network based on different global operators.

Vehicle monitoring management system consists of vehicle machine, the monitoring control center, the information transmission on the public network system, no need to create a independent network system, which saves a lot of maintenance funds.

When vehicle safety monitoring management system operates in the effective range of public GSM network, all vehicle targets within network roaming can get effective tracking management. The extension of the GPS and GSM technology will drive the vehicle safety monitoring management system development synchronously. The development of the network means the development of actual tracking extent. Vehicle safety monitoring management system adopts multi-layer architecture, size can be large or small. From group to family, it can serves different group respectively, proceeding different real-time tracking management. Equipment is simple, the cost is moderate, easy to use.