Deceleration warning system at gateway of trunk road
A technology for entrances and exits and main roads, which is applied in the field of deceleration warning systems for main road entrances and exits, can solve the problems of difficulty in setting up warning devices and difficult selection conditions, and achieve the effect of avoiding traffic accidents.
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Embodiment 1
[0031] see figure 1 , Figure 5, the invention discloses a deceleration warning system for main road entrances and exits, including a sensing unit, a comprehensive coordination control module and a deceleration warning unit, wherein: the sensing unit is composed of a community entrance and exit access control device or / and an infrared detector, and a vehicle steering detection device; the deceleration warning The unit includes a vehicle deceleration yellow flashing warning light set on the main road close to the driving direction of the residential area And set on the main road away from the direction of the community on the side of the vehicle deceleration yellow flashing warning lights ; The integrated coordination control module receives the access control device at the entrance and exit of the community Or / and the detection signal of the infrared detector and the vehicle steering detection device, judge the vehicle leaving the community to turn right or left, and outp...
Embodiment 2
[0033] see figure 2 (a), the deceleration warning system at the entrance and exit of the arterial road in this embodiment is different from that in Embodiment 1 in that: for the case where the access control device at the entrance and exit of the community has an access control for the exit and the entrance, the sensing unit obtains the vehicle status through the switch state of the exit access control. The departure signal is transmitted to the integrated coordination control module.
Embodiment 3
[0035] see figure 2 (b) The deceleration warning system at the entrance and exit of the main road in this embodiment is different from that in Embodiment 2 in that: the access control device at the entrance and exit of the community shares one access control for the exit and entrance, and two sets of infrared detectors are used to link with the access control device. Two sets of infrared rays The detectors are respectively arranged on the inner side and the outer side of the railing fixing device of the access control device. The infrared beams emitted by the two sets of infrared detectors are parallel to the crossbar of the access control device. The coverage of the two sets of infrared detectors is the same as the length of the crossbar of the access control device. When the inner infrared detector is blocked first and the outer infrared detector is blocked later, it indicates that a vehicle has left the community, otherwise, it indicates that a vehicle has entered the commu...
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