Vehicle-mounted GPS terminal based area monitoring method
A GPS terminal, area monitoring technology, applied in the traffic control system of road vehicles, traffic control system, beacon system using radio waves, etc., can solve problems such as inability to realize functions, and achieve the effect of flexible speed limit monitoring
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[0023] The present invention will be described in detail below with reference to the drawings and specific embodiments.
[0024] As shown in Figure 1, the regional monitoring processing flow using the dynamic monitoring mechanism of the monitoring center, if only the vehicle entering and leaving the set area is monitored, the specific processing process is as follows:
[0025] 11) The monitoring center sets at least one polygonal area in the electronic geographic map; the setting of the polygonal area can be implemented in the following ways: set multiple location points and the longitude and latitude offset values of each location point, and each location within the offset range The collection of point geographic locations serves as a polygonal area.
[0026] 12) Vehicle-mounted GPS terminal dynamically reports vehicle geographic location information to the monitoring center;
[0027] 13) The monitoring center judges that the vehicle enters and exits the set polygon area based ...
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