Method for monitoring running states of vehicles in tunnel and monitoring device thereof
A vehicle driving and monitoring device technology, applied to the arrangement of variable traffic instructions, anti-collision systems, etc., can solve problems such as temporary blindness, rear-end collision, and inability to see clearly
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Embodiment 1
[0033] Such as figure 1 As shown, a method for monitoring the driving state of vehicles in a tunnel starts from the initial state and includes the following steps:
[0034] (1) Judging whether there is a vehicle entering the tunnel, monitoring and tracking the driving status of the vehicle entering the tunnel, and converting the vehicle's driving speed, distance from the tunnel entrance, or status information of whether it has stopped due to failure into electrical signals;
[0035] (2) Enter and process the signal and output the selection signal: signal processing includes signal control, detection, amplification, and select the signal that affects driving safety to enter and output;
[0036] (3) Output the selected warning signal, including the driving speed signal, the distance signal from the tunnel entrance or the vehicle failure signal.
[0037] In the above steps, a vehicle failure misjudgment processing step is also included. By judging the driving speed of the vehicl...
Embodiment 2
[0040] Such as figure 2 Shown is a monitoring device for the driving status of vehicles in a tunnel, including:
[0041] A monitoring unit 1 for monitoring the driving state of vehicles in the tunnel, the monitoring unit 1 monitors the driving state of vehicles entering the tunnel, and converts the monitored driving state of vehicles into electrical signals;
[0042] The signal processing unit 2 that receives and processes the vehicle driving state signal from the monitoring unit, the signal processed by the signal processing unit 2 includes the vehicle driving speed signal, the distance signal between the vehicle and the tunnel entrance and the vehicle fault signal, and outputs the processed signal to the warning display unit 3;
[0043] The warning display unit 3, which is installed at a conspicuous position at the tunnel entrance, displays and outputs the received vehicle speed signal processed by the signal processing unit 2, the distance signal between the vehicle and t...
Embodiment 3
[0048] Such as Figure 4 Shown is the second embodiment of the vehicle driving state monitoring device in the tunnel. The monitoring unit 1 of this embodiment adopts the radar monitoring unit 13, which is used to monitor the driving state of the vehicle after the vehicle enters the tunnel, including the driving speed and the tunnel entrance. The distance or whether there is a fault, and these states are converted into electrical signals and sent to the signal processing unit 2.
[0049] The signal processing unit 2 includes a control circuit 21 , a detection circuit 22 , a signal processing circuit 23 and a power supply 24 . The signal processing unit 2 is to process the signal transmitted by the monitoring unit, and select and output the driving speed signal, the distance signal between the vehicle and the tunnel entrance, or the vehicle failure signal that affects driving safety.
[0050]The warning display unit 3 includes yellow distance warning scale lights arranged in a ...
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