Global Positioning System GPS is the abbreviation in English, which means Global Positioning System. Global Positioning System navigation satellite test the use of time and distance, so that the user anywhere on earth, can calculate the position they find themselves.
Car of the GPS receivers receive satellite positioning data sent per second, and in accordance with the above from three different satellites to calculate their own data the coordinates of geographical location.
GPS system components Part-GPS satellite constellation space;
Ground control section - the ground control system;
Part-GPS user equipment signals receivers.
Application of mature technologies GPS global satellite positioning system technology
Computer Network Technology
Wireless communication technology
Data storage, data retrieval and data warehouse technology
Geographic Information Technology (GIS)
System is mainly involved vehicles, control centers, SMS short message center of three parts
Car machines (car unit)
System composition as shown below
The control center by the call center system, the total control center systems, Internet services, systems management system, geographic information systems, data analysis system and other components. Including the GPS satellite positioning technology, wireless communication technology, digital transmission technology, adaptive technology, encryption, remote control technology, computer network technology. Geographical information system (GIS), digital maps, communication software, management software, control software and other software, the organic co-ordination of integration as an accurate, real-time, secure, reliable information processing systems.
Control center responsible for controlling the operation of the wireless communication network, receiving information transmitted from mobile unit and the information sent to the monitoring platform; monitoring platform is mainly based on the electronic map to monitor and control the operating platform, have a very convenient information database and powerful electronic map operation functions.
Hardware devices including: network equipment, storage devices, computing devices, display devices, lighting and sound equipment, digital and voice communications equipment and other components.
Software includes: operating system software, database software, communications software, application software, etc..
Management: including monitoring staff on duty, foreman, public information dissemination staff, maintenance personnel.
SMS Short Message Center
Short Message Center is used for wireless communication to send and receive text messages in the system, because our system uses GSM, SMS short message transmission, in order to speed up our data transfer speed, we need to build your own short message center or in the telecommunications sector the establishment of a dedicated messaging system to improve the whole system as priority, to ensure timely and reliable data, reduced data transmission time delay.
GPS Vehicle Location and composition of anti-theft system
Car GPS anti-theft unit n control center (management platform, short message center)
GPS positioning, alarm and monitoring and dispatching functions
Car anti-theft Anti-hijacking function
High degree of integration of two functions
Car GPS security modules
GPS receiver module
Vehicle anti-theft module
Data Communication Module
Control Center software main interface diagram
Wireless communication is the vehicle control unit and contact the media, which can achieve data and voice transmission.
In order to save communication costs can also use the GSM, GPRS, CDPD, CDMA digital short message (SMS) channel
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