KR20130082201A

KR20130082201A - Traffic flow information system

Info

Publication number: KR20130082201A
Application number: KR1020120003251A
Authority: KR
Inventors: 양두영
Original assignee: 양두영
Priority date: 2012-01-11
Filing date: 2012-01-11
Publication date: 2013-07-19

Abstract

The present invention relates to a vehicle flow display system, and more particularly, to a vehicle flow display system for preventing further collision accidents by informing a subsequent vehicle in advance of a vehicle flow passing through a tunnel, a bridge, and the like, which are very likely to occur. . To this end, the present invention is a loop coil for detecting a vehicle passing through the buried road, such as tunnels, bridges, accidents, a controller for detecting the speed of the vehicle, the road occupancy rate by the signal input from the loop coil and a signal from the controller It is characterized in that the LED light source for displaying the color of the flow state of the vehicle passing through the loop coil through the loop coil is buried.

Description

Vehicle Flow Display System {Traffic Flow Information System}

The present invention relates to a vehicle flow display system, and more particularly, to a vehicle flow display system for preventing further collision accidents by informing a subsequent vehicle in advance of the state of the vehicle flow passing through a tunnel, bridge, etc., which is very likely to occur. .

In general, tunnels and bridges are very likely to cause vehicle accidents. If a vehicle accident occurs in such a place, subsequent vehicles entering the vehicle may enter without knowing it in advance, resulting in a second traffic accident such as a collision. There are a lot of risks of chain collision accidents are always inherent.

For this reason, in the case of a tunnel, in the past, a tunnel sign and an alarm or the like are installed to warn the driver that the tunnel is located at the front or the entrance of the tunnel, thereby warning that the tunnel exists. However, these tunnel signs and warnings only inform the driver of the existence of the tunnel and require attention to the operation of the vehicle. Therefore, if an unexpected traffic accident occurs inside the tunnel, a second traffic accident may occur. It was higher, especially in areas with misty bridges, where drivers could not be aware of the flow of vehicles ahead, and there was always a risk of chain collisions.

Therefore, the development of a system for accurately detecting in real time the flow of a vehicle passing through a place where a frequent traffic accident, such as a tunnel or a bridge, may be notified to a subsequent vehicle in advance is required.

Therefore, the present invention has been devised to solve such a problem, and is installed at the entrance of a tunnel, bridge, etc., which has a high probability of an accident, so as to notify a prior vehicle that enters a flow state of a vehicle passing through the tunnel and the bridge in advance. The purpose is to provide a vehicle flow indication system to prevent additional collision accidents.

In addition, an object of the present invention is to provide a vehicle flow display system that allows the driver to respond to the vehicle with more time by displaying the flow of the vehicle passing through the tunnel and the bridge by color.

To this end, the present invention, a loop coil for detecting a vehicle that is buried in the road, such as tunnels, bridges and the like that frequent accidents; A controller for detecting a speed and a road occupancy rate of the vehicle using a signal input from the loop coil; And an LED light source for receiving a signal from the controller and displaying the flow state of the vehicle passing through the loop coil by color before the point where the loop coil is embedded.

Here, the LED light source is disposed at regular intervals on the left and right sides of the road, it is preferable to receive power from the solar cell installed at a predetermined position.

In addition, the LED light source is preferably displayed differently in red, yellow, green depending on the vehicle flow conditions.

According to the present invention as described above, it is possible to accurately detect the vehicle flow state through the loop coil, which is a contact sensor, and to notify the subsequent vehicle in advance, thereby preventing further collision accidents, and color the vehicle flow state. It is expected that the driver will be able to respond with more time by allowing them to be displayed separately.

1 is a conceptual diagram of a vehicle flow display system according to an embodiment of the present invention;

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Of course, the scope of the present invention is not limited to the following examples, and various modifications can be made by those skilled in the art without departing from the technical gist of the present invention.

1 is a conceptual diagram of a vehicle flow display system according to an embodiment of the present invention.

First, as shown in the figure, one or more roof coils (Loop Coil, 10) are installed at a certain distance on a road in a frequent traffic accident danger area such as a tunnel or a bridge. It is connected to a detection device (not shown), and transmits the data detected by the loop coil 10 to the controller 20. At this time, the data processed by the loop detection device is transmitted to the controller 20 in a wired or wireless manner.

The loop coil 10 is usually formed by digging a groove in a circle or a square on the road and winding the wire therein a number of times. At this time, the first loop coil embedded at a certain point on the road to detect the speed of the vehicle and the same And a second loop coil embedded at a distance.

At this time, by oscillating and outputting a high frequency signal to the first loop coil, and oscillating the frequency reflecting the change in inductance of the first loop coil according to whether the vehicle enters, and subsequently on the road at a certain distance from the first loop coil After oscillating and outputting a high frequency signal to the second loop coil embedded in the oscillator, oscillating the frequency reflecting the change in inductance of the second loop coil according to whether the vehicle enters, and compares the measured frequency with the preset reference frequency When it is determined that the vehicle enters the first loop coil and the second loop coil, the controller 20 calculates a time difference at the time of entering the vehicle, and calculates a speed of the vehicle from the time difference, and further, a plurality of times in a predetermined section. If two loop coils are installed, the road occupancy rate of the vehicle is calculated according to the number of loop coils.

On the other hand, based on the detected speed and the road occupancy data, the controller 20 determines whether the vehicle flows in the tunnel or on the bridge to stop, slow down, and smoothly, and enters the result into the tunnel or on the bridge. In order to notify a subsequent vehicle in advance, a blinking signal is sent to the LED light source 30 before the point where the loop coil 10 is embedded.

At this time, the LED light source 30 is disposed at regular intervals on the left and right sides of the road as possible, it is preferable to receive power from the solar cell 40 installed at a predetermined position. Here, since solar cell-related devices such as storage batteries and control circuits are widely known, a detailed description thereof will be omitted.

In addition, the LED light source 30 to display differently in red, yellow, and green, respectively, depending on the state of the vehicle flow, that is, the driver to display red when in a stopped state, yellow when in a slow state, and green when in a smooth state. It is desirable to have a more time to respond.

Therefore, the subsequent vehicle that wants to pass through the tunnel or the bridge can grasp the current flow of the vehicle on the tunnel or the bridge in advance by looking at the color of the LED light source 30 disposed on the left and right sides of the road, thus preventing accidents such as secondary collisions. Can be prevented.

As described above, the present invention uses a roof coil and an LED light source to install in a place where a high risk of an accident, such as a tunnel or a bridge, is intended to prevent further collision of a vehicle following an accident. Within the scope of the basic idea of the invention, of course, many other modifications are possible to those skilled in the art.

10: loop coil 20: controller
30: LED light source 40: solar cell

Claims

A loop coil 10 which detects a vehicle passing through a buried road, such as a tunnel and a bridge, which may be a frequent accident;
A controller 20 for detecting a speed and a road occupancy rate of the vehicle with a signal input from the loop coil; And
Vehicle light display system comprising a LED light source (30) for receiving a signal from the controller to display the flow state of the vehicle passing through the loop coil for each color before the point where the loop coil is embedded.

The vehicle flow display system of claim 1, wherein the LED light sources are arranged at regular intervals on the left and right sides of the road, and receive power from a solar cell installed at a predetermined position.

The vehicle flow display system of claim 2, wherein the LED light source is displayed differently in red, yellow, and green colors according to the vehicle flow conditions.