JPH0227719B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an overspeed warning structure for a motor vehicle that issues a warning when the motor vehicle exceeds a speed limit.

[Prior art and its problems]

It is said that many of the car accidents that occur today are caused by speeding, so if speeding can be eliminated, there is a possibility that traffic accidents can be significantly prevented.

Conventionally, there is a warning system proposed in Japanese Patent Application Laid-open No. 105600/1983 as a structure for warning of excessive speed of a car.

This system is equipped with a speed sensor on the road that detects the vehicle speed, a controller that compares the detected vehicle speed with a variable set speed value, and a warning sign board that displays a warning to the driver. When the speed exceeds a set speed value, a warning sign board displays a warning to the driver of the vehicle.

However, the above structure requires the driver to constantly view the warning sign board while driving, so there is a drawback that the warning may sometimes be overlooked and the reliability of the warning cannot be obtained.

Furthermore, by watching the warning sign board while driving, the driver's attention is diverted from the direction required for driving, which has the disadvantage of impeding driving safety.

The present invention has been made in view of the above-mentioned drawbacks, and an object of the present invention is to provide a warning structure that can reliably notify a driver of excessive speed without compromising driving safety.

[Means for solving problems]

In order to achieve the above object, the present invention comprises a transmitter placed along a road and transmitting a signal indicating a speed limit, and a speed warning device mounted on a motor vehicle. an input section for inputting a traveling speed signal emitted from the speed detector; a receiving section for receiving a speed limit signal transmitted from the transmitter; They adopted a structure consisting of a comparator that outputs a signal when the speed exceeds the sum of the speed, and an alarm that issues an alarm based on the signal from the comparator.

[Effect]

A speed warning device installed in a vehicle compares the traveling speed with the speed limit, and if the traveling speed exceeds the speed limit plus the allowable speed, an alarm is issued. By issuing a warning using the warning device installed in the vehicle, the driver can be reliably informed of the warning, and there is no need to watch a warning sign board while driving, so safety is not compromised.

〔Example〕

Embodiments of the present invention will be described below with reference to the accompanying drawings.

As shown in FIG. 1, a transmitter 3 that transmits a signal indicating the speed limit corresponding to this road 1 is attached to a pole 2 installed at or near the end of a road 1. , a speed warning device 5 that receives a signal from a transmitter 3 and issues an alarm is loaded.

As shown in FIG. 2, this alarm device 5 includes an input section 7 that inputs a signal indicating the traveling speed from a speed detector 6 that detects the traveling speed of the automobile 4, and a speed limit signal issued from the transmitter 3. a receiving unit 8 that receives the traveling speed signal from the input unit 7 and the receiving unit 8 that receives the traveling speed signal from the input unit 7;
A comparator 9 receives a speed limit signal from the setter 10 and issues a signal when the traveling speed exceeds the sum of the limit speed and the allowable speed from the setting device 10;
and an alarm device 11 that issues an alarm based on the signal. The setting device 10 is used to adjust the permissible speed to an arbitrary value, and can set the permissible speed within a range of, for example, 0 to 20 km/h.

Note that the input section 7 and the receiving section 8 convert the input speed into a voltage signal and a digital signal and output the same.

In addition, an input section 7 is connected to a speed detector 6 provided in the automobile.
If it is not possible to connect a rotation detector, a rotation detector may be attached to a shaft or the like that rotates in conjunction with the axle, and this rotation detector may be connected to the input section 7 to detect the traveling speed.

This embodiment has the above-described configuration, and while the vehicle is traveling, the receiving section 8 receives the speed limit signal transmitted from the transmitters 3 provided at predetermined intervals along the road 1, and the speed detector 6 of the vehicle 4 receives The input section 7 receives a traveling speed signal from the vehicle, and the comparing section 9 compares the traveling speed with the speed limit. If this running speed becomes greater than the sum of the speed limit and the allowable speed from the setting device 10, the signal from the comparator 9 activates the alarm 11 to emit an alarm sound or light. By emitting a warning using the alarm device 11 installed in the vehicle, the driver can be sure of knowing that the vehicle is overspeeding, and there is no need for the driver to pay close attention to warning signs installed on the road. Therefore, you can drive safely without getting distracted.

Note that if the vehicle is equipped with a speed limiter that receives the signal from the comparison section 9 as input, and the signal does not accelerate the vehicle's traveling speed, the vehicle's traveling speed will be equal to or higher than the sum of the limit speed and the allowable speed. Speeding can be reliably prevented.

〔Effect of the invention〕

As described above, the present invention inputs the speed limit and traveling speed signals to the warning device installed in the automobile, and when the traveling speed exceeds the sum of the limit speed and the allowable speed, the warning device is equipped with a signal. Since the alarm is used to issue a warning, the driver can be sure that he or she is speeding, and can correct the speeding violation.

In addition, since the car is equipped with a warning device, the driver does not have to pay close attention to warning signs placed on the road, etc., so there is no distraction while driving, and the driver can drive safely. .

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram for explaining an embodiment of the present invention, and FIG. 2 is a block diagram showing the structure of this embodiment. 1...Road, 3...Transmitter, 4...Car, 5
. . . Speed warning device, 6 . . . Speed detector, 7 .

Claims (1)

[Scope of Claims] 1. Consists of a transmitter 3 disposed along the road and transmitting a signal indicating the speed limit, and a speed warning device mounted on a car, and the speed warning device 5 detects the speed of the car. an input section 7 for inputting the traveling speed signal emitted from the transmitter 6; a receiving section 8 for receiving the speed limit signal transmitted from the transmitter 3; This overspeed warning structure for an automobile is composed of a comparator 9 that outputs a signal when the speed exceeds the sum of the speed and an allowable speed, and an alarm 11 that issues a warning based on the signal from the comparator 9. 2. The overspeed warning structure for a motor vehicle according to claim 1, wherein the comparing section 9 is capable of adjusting an allowable speed.