JPS6297091A - How to be careful about following vehicles - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention provides a method for preventing following vehicles from driving on the shoulder of a motorway when it is determined that a predetermined number of vehicles have traveled on the shoulder of a motorway. Regarding how to be careful.

[Conventional technology]

Figure 4 shows the carriageway (1) and shoulder (2) of the motorway.
). Car (3) is on the road (1) as is well known.
), but when roadway (11) becomes congested, traffic violations become more noticeable.

This is similar to the situation where an increasing number of cars try to move forward on the shoulder (2) of the road, cutting into lines of cars connected to the road at the exit of a private road, making congestion even worse.

[Problems to be solved by the invention] By the way, conventionally when a car drives on the shoulder of the road, it has been seen that the cars following that car continue to drive on the shoulder of the road. Traffic congestion caused by vehicles driving on the shoulder was common on all motorable roads. This invention proposes a method for improving such problems.

[Means for solving problems]

In the method according to the present invention, three sensors that generate a pulse output every time a car passes within a predetermined distance on the road shoulder are buried at a predetermined interval, and the number of vehicles traveling on the road shoulder detected by the three sensors is calculated. When the number becomes equal to a predetermined number, an electronic display board installed closer to the direction of the vehicle's arrival than the position where the above-mentioned sensor is installed displays a message to prevent the following vehicle from driving on the shoulder of the road. , and it flashes to warn drivers of cars behind.

[Effect]

Three sensors detect vehicles running on the shoulder of the road, and when the number of detected vehicles +\ reaches a predetermined number, an electronic display board indicates that vehicles following the vehicle should not drive on the shoulder of the road, thereby preventing an increase in the number of vehicles running on the shoulder of the road.

〔Example〕

Figure 1 shows an embodiment of the present invention. In Figure 2, (1) is the roadway, (2) is the road shoulder, and (3) is a vehicle running on the roadway (1) and onto the road shoulder (2). , (4A),
(4B) and (4C) are sensors (e.g. round metal detectors) buried at points A, B and C on the roadside, respectively, and the sensors (4A), (4B) and (4C) pass over them. Each time, a pulse signal is generated as a detection signal. In addition, the three spaces are arranged at a predetermined interval when driving on the road shoulder.

This is provided to distinguish between cases where the vehicle is parked on the roadside due to a malfunction, etc. If the three sensors sequentially generate pulse outputs as the vehicle runs on the roadside, it can be determined that the vehicle is running on the roadside.

(5) is the above setsa (48), (4B), (4C)
This is a control device that outputs a predetermined output to the electronic display board (6) based on the signal from the control panel.

Figure 2 (phantom is the main part of the control device (5) and the electronic display board (6)
(14) and (15) are memory circuits each constructed by alternately connecting two gates Gl+G2, and one input terminal of the gate G1 of the memory circuit (14) has a first gate G1. The sensors (4 people) are connected to the output terminal of game 1-62 of the memory circuit (]4) and the memory circuit (1).
AN located between one input terminal of gate G1 of 5)
A second sensor (
4B) is connected and the memory circuit (15) is game!・G2
A third sensor (4C) is connected to one input end of an AND gate (17) connected to an output end of the AND gate (17).

Furthermore, the output of AND game 1-(16) is connected to the memory circuit (15).
) is given to the input terminal of the gate 1-G, and the input terminal of the gate.

The signal is branched and applied to one input terminal of the gate G2 of the memory circuit (14) as a reset signal. On the other hand, the output of AND K1-(17) is given to a counter which will be described later and is branched into two gates (G1-G2) of the memory circuit (15).
is given as a reset signal to one input terminal of the .

(7) is a counter that counts the pulses generated from the AND gate (17), and (8) is a switch for setting a preset value.

(9) is the precera I value holder, α0) is the counter (7
) is a matching circuit that compares the counted value of the preset value holder (9) with the contents of the preset value holder (9) and generates a logical output of ``1°'' when the two match, and the output sets the counter (7). (11) is shown in Figure 2 (B) as the output for the input.
A delay circuit that looks like this continues to output for a time t even after the input is gone. Therefore, the matching times m QO
) continues to output an output of ``1'' for a time t even after the output changes from ``1'' to ``O'''.

(12) is a flicker signal generation circuit whose output is AND gated with the output of the delay circuit (11).
13) and causes the electronic display board (6) to blink.

In addition, here, the memory circuit (141 (151, A N D
The operation of gates (16) and (17) will be explained in detail. Now, if a certain car runs on the shoulder of the road and an output is generated from the sensor (4A), the output from the gate G of the memory circuit (14) is I.
DI+.

The output of gate G2 is “1''. Therefore, AN
D '7' l・(16) -'s input terminal is "1'
°.

After that, if an output is generated from the sensor (4B), AND game 1
-(16) outputs 1", the output of gate +-G2 of memory circuit (15) becomes 1", and the AND gate (
17) The input terminal of ``-'' becomes ``1''. Then, if the car moves and an output is generated from the sensor (4C).

A pulse output is generated from the AND gate (17) and is given to the counter (7), i.e. the sensor (4),
(4B).

When the detection signals are generated in the order of (4C), one pulse is given to the counter. In addition, ``memory circuit (
14) and (15) are AND gates (1(i
), it is reset by the output of (17) and returns to the initial state.

Figure 3 shows an example of installing an electronic display board (6).

The display board (6) has sensors (4A), (4B), and (4
It is located closer to the direction of arrival of the car than the installation location of C).
When a detection signal is generated and the counted value reaches a preset value, an electric display board (6) installed on the side of the road shoulder (2) displays a message to warn following vehicles not to drive on the road shoulder.

In this way, it is possible to prevent an increase in the number of vehicles traveling on the roadside, and it is possible to considerably alleviate [7] near the exit of the expressway.

In addition, in FIG. 1, FIG. 3, and FIG. 4, the arrows all indicate the direction of travel of the vehicle.

Also, the preset value is set because the number of vehicles driving on the roadside increases or decreases depending on the traffic volume.2 For example, on holidays during the tourist season when the number of vehicles driving on the roadside is expected to increase, it is difficult to reduce the number of vehicles driving on the roadside unless the preset value is decreased. This is because it is considered impossible.

〔Effect of the invention〕

As described above, according to the present invention, when a certain car drives on the shoulder of the road, it is automatically detected and the required display is displayed on the electronic display board to warn the following vehicles not to drive on the shoulder of the road. Because it has become.

This will help alleviate congestion on expressways and prevent accidents caused by driving on the shoulder of the road.

It should be noted that the embodiments are merely examples of the gist of the present invention, and it goes without saying that various modifications can be made without departing from the gist of the invention.

[BRIEF DESCRIPTION OF THE DRAWINGS] FIG. 1 shows an embodiment of the present invention, and FIG. 2 (A
) (B) is for explaining the main parts of the control device, FIG. 3 is a diagram showing an example of the arrangement of electronic display boards, and FIG. 4 is a diagram showing the relationship between the roadway, road shoulder, and vehicle. ) is the roadway, (2) is the road shoulder, (3) is the car, (4 people), (481, and (4C) are the car detection sensors, (5) is the control device, and (6) is the electronic display board. Note that the same or equivalent parts in the two figures are designated by the same reference numerals.

Claims (1)

[Claims] first, second, and third sensors for detecting vehicles running on the road shoulder, which are provided at a predetermined distance from each other within a predetermined distance range on the shoulder of a motorway, and output a pulse every time a vehicle passes; , this counting means for counting pulses generated based on three pulse signals generated in order from the first, second and third sensors when the car runs on the road shoulder, and the count value by this counting means being predetermined. a delay circuit that continues to output a predetermined output for a certain period of time after the set value matches the set value, and the first sensor is installed closer to the direction of arrival of the vehicle than the second and third sensors, an electronic display board that displays and flashes a warning that vehicles following the vehicle should not drive on the roadside while the delay circuit is outputting an output; and means for controlling the display board to blink in response to the output of the delay circuit. , when a vehicle running on the road shoulder is detected by the three sensors and the count of the counting means reaches a preset value, a display is displayed on the display board indicating that the following vehicle should not drive on the road shoulder; A warning method for vehicles behind you that uses flashing lights to alert the drivers behind you.