An etc system capable of precisely locating vehicles and dynamically setting communication areas
A communication area and precise positioning technology, which is applied in the field of ETC system, can solve the problems of low transaction success rate, car following interference, reversing and queue jumping, etc., so as to improve transaction success rate and traffic speed, long transaction time, and improve applicability Effect
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Embodiment 1
[0039] Such as figure 1 with figure 2 (Note: 12-isolating column and 1-main control machine are not marked in the figure), a kind of ETC system that can accurately locate the vehicle and dynamically set the communication area includes the main control machine 1 and the communication antenna 7 connected to it, Antenna controller, license plate recognition device 8, auxiliary card swiping device 4, information display device 3, automatic railing 2, laser scanner 6, the laser scanner 6 is used to obtain real-time vehicle positioning information, vehicle longitudinal profile information, play an accurate The function of separating vehicles, accurately locating vehicles and actively identifying vehicle types, the laser scanner 6 is arranged in the middle of the lateral direction above the ETC lane through the mounting bracket 5, with a height of 8 meters, and its scanning area 11 is parallel to the driving direction of the lane. The length A of the scanning area 11 is 25m, coveri...
Embodiment 2
[0044] Present embodiment is with embodiment 1 except following feature: as image 3 (note: 12-isolating column and 1-main control machine are not marked in the figure), described auxiliary card swiping equipment 4 replaces with artificial toll booth 13, so just makes ETC lane compatible MTC lane, has also strengthened the ETC lane Processing capacity improves resource utilization and traffic capacity.
Embodiment 3
[0046] Present embodiment is with embodiment 1 except following feature: as Figure 4(note: 12-isolating columns and 1-main control machine are not marked in the figure), the number of the laser scanners 6 is two, which are respectively arranged on two mounting brackets 5 arranged at intervals along the direction of the lane. The scanning area 11 of the laser scanner 6 is parallel to the driving direction of the lane and covers the middle part of the lane, and the distance between the two scanning area planes is 1m, and the distance between the two mounting brackets 5 is 5m; the communication antenna 7 is two sets of microwave antennas, which are installed on the mounting bracket 5, and can project two different communication areas covering the lane: the remote communication area 14 and the near-end communication area 15, which can locate vehicles with electronic tags (OBU), And according to the positioning information obtained by the laser scanner 6, the antenna controller is...
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