JPH0232518Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention issues a visual warning to illegal vehicles driving or parked in bus lanes using a warning device installed on the front of a city bus. Relating to a bus lane warning device.

[Conventional technology]

Conventionally, when a vehicle is in violation of a bus-only or bus-priority lane (hereinafter referred to as a bus lane) set depending on the time of day, such as a vehicle parked or running on the bus lane, the bus cannot be operated. Hands were honking horns to warn offending vehicles and to ask them to leave.

[Problem that the invention attempts to solve]

By the way, in the conventional method of sounding the horn, the sound of the horn causes noise, and if the driver of the violating vehicle does not know that the vehicle is in the bus lane, it becomes difficult to understand what the horn means. The problem is that people are confused because they cannot understand what is going on. In addition, bus drivers are required to sound the horn when they spot a car in violation of the law and force the car to leave. There was a risk of an accident occurring due to neglect.

[Means for solving problems]

In order to solve the above-mentioned problems, the present invention aims to provide a bus lane warning device that automatically detects a violation vehicle and visually warns the violation vehicle that it is in a bus lane. The means includes at least two transmitters and receivers for detecting vehicles with different vehicle heights located in front of the bus, and an output from a receiver for detecting vehicles with a lower vehicle height. A bus lane comprising a circuit that sends out an output when there is no output from a receiver that detects a high vehicle, and an electronic display board attached to the front of the bus that indicates that it is a bus lane by the output from the circuit. This is done by means of a warning device.

[Effect]

The bus lane warning device uses two vehicle detectors installed on the front of the bus to distinguish between a preceding bus and a violation vehicle, and when a violation vehicle is detected, an electronic display board placed on the front of the bus is displayed. Therefore, by displaying the bus lane to the violating vehicle,
The purpose of this is to automatically warn the driver of the violating vehicle that the vehicle is in a bus lane.

[Example of idea]

Hereinafter, one embodiment of the present invention will be described with reference to the drawings. In FIG. 1, A indicates a city bus, and vehicle detectors 1 and 2 are attached to the upper and lower parts of the front surface of the bus. The vehicle detectors 1 and 2 include transmitters 11 and 21 that emit directional light and radio waves,
Receivers 12 and 22 that receive light or radio waves from the transmitters 11 and 21 are included. Also,
An electronic display board 3 is also attached to the front of the city bus A, in which light emitting elements such as small light bulbs and light emitting diodes are arranged in a matrix.

FIG. 2 shows a circuit included in the vehicle detectors 1 and 2, which lights up warning characters such as "bus lane" on the electronic display board 3 when a violation vehicle is detected; A pulse transmitter for modulating the infrared rays emitted from the transmitters 11 and 21 in order to easily distinguish between the infrared rays emitted by the transmitters 11 and 21;
4 and 24 are power amplifiers that amplify the outputs from the pulse transmitters 13 and 23; 15 and 25 are current/voltage converters that convert the currents detected by the receivers 12 and 22 into voltages; and 16 and 26 are the Voltage amplifiers 17 and 27 amplify the weak output voltages of the current/voltage converters 15 and 25; discriminators 17 and 27 send out an output when the output voltages from the voltage amplifiers 16 and 26 continue to exceed a preset comparison value; 28 is an inverter that inverts the output from the discriminator 27.

Note that if the transmitters 11 and 21 are those that emit radio waves, the pulse transmitters 13 and 23 are not necessary.

Further, the discriminators 17 and 27 use, for example, a voltage value corresponding to a case where a vehicle is 50 meters in front of the bus A as a reference voltage for comparison.

Further, a circuit for lighting up a light emitting element according to the outputs from the vehicle detectors 1 and 2 is incorporated in the electronic display board 3, and a circuit 31 for lighting a light emitting element according to the outputs from the discriminator 17 and the inverter 28 is incorporated. The input AND circuit 32 is a light emitter drive circuit that lights up the light emitter by the output from the AND circuit 31 and alternately displays warning characters as reverse characters and normal characters.

It should be noted that the circuit described above is configured to be supplied with power and started to operate when the driver operates a switch (not shown) when the bus lane starts traveling.

Next, to explain the operation based on the above configuration,
The transmitters 11 and 21 are pulse transmitters 13 and 23, respectively.
It emits the modulated infrared rays or radio waves.

If there is a high-height vehicle B such as a bus in front of the bus A that is currently traveling in the bus lane, the transmitter 1
The modulated light or radio waves emitted from the vehicle B are reflected by the vehicle B, and this reflected wave is transmitted to the receivers 12 and 21.
It is received at 22. When the reflected wave is received, the current from the receivers 12 and 22 is transferred to the current/voltage converter 1.
5 and 25, the voltage is then amplified by voltage amplifiers 16 and 26, and the output thereof is compared with a reference voltage in discriminators 17 and 27. At this time, the output voltage from the voltage amplifiers 16 and 26 is 50
If the voltage is higher than the reference voltage of the meter and the value continues, output is sent from the discriminators 17 and 27. The output from the discriminator 17 is directly input to the AND circuit 31;
Since the output from 2 is inputted to the AND circuit 31 via the inverter 28, the AND circuit 31 does not send out the output, and therefore the electronic display board 3 is not illuminated and no warning characters are displayed.

In addition, in the above explanation, all vehicles with a high vehicle height are considered to be buses and the electronic display board 3 is not turned on, so even when a large truck or the like is detected, a warning letter is not displayed.However, from a general and statistical point of view, Large trucks and the like rarely drive or park on bus lanes, and passenger cars park or drive illegally, so there is little problem in treating large vehicles as buses.

Next, to explain the case where a passenger car C with a low vehicle height is stopped or running on a bus lane, since the vehicle detector 2 does not detect the reflected wave from the passenger car C, the output from the discriminator 27 is not sent out, therefore, a high level signal is output from the inverter 28 and input to the AND circuit 31. On the other hand, since the receiver 12 of the vehicle detector 1 is receiving the reflected wave, a high level signal is output from the discriminator 17 and input to the AND circuit 31 by the same operation as described above. As a result, the AND circuit 31 sends out an output, and the light emitter drive circuit 32 operates to light up the light emitters of the electronic display board 3. Therefore, on the electronic display board 3, the warning characters are displayed in reverse and normal characters for a certain period of time (for example, 10 seconds).
The lights will be lit alternately, so if the driver of the illegally parked car is in the driver's seat, he or she can look at the inverted letters through the rearview mirror, or if the driver is outside the vehicle, he or she can look directly at the normal letters. According to
This will allow you to know the warning from bus A.

In the above-mentioned embodiment, the warning characters are lit, but the headlights may be made to flash along with the warning characters lit, or a circuit may be added to provide an audible warning using voice synthesis. Conceivable.

[Effect of idea]

As described above, the present invention uses two vehicle detectors installed on the front of the bus to distinguish between a preceding bus and a violating vehicle, and when a violation vehicle is detected, an electronic display placed on the front of the bus is displayed. Since the bus lane is displayed on the bus lane, a warning is automatically given to illegal vehicles such as passenger cars, thereby ensuring smooth traffic in the bus lane and contributing to on-time operation. Furthermore, there is no need for the bus driver to perform any troublesome operations, and therefore the driver can concentrate on safe driving.

[Brief explanation of the drawing]

The figures show an embodiment of the bus lane warning device according to the present invention, FIG. 1 is a front view of a city bus equipped with the device of the present invention, and FIG. 2 is a block circuit diagram. A... City bus, 1, 2... Vehicle detector, 1
1, 21... Transmitter, 12, 22... Receiver, 1
7, 27...Discriminator, 3...Electronic display board.

Claims (1)

[Claims for Utility Model Registration] At least two transmitters and receivers for detecting vehicles of different vehicle heights located in front of the bus, and an output from the receiver for detecting vehicles with a low vehicle height. , a circuit that sends out an output when there is no output from a receiver that detects a vehicle with a high vehicle height, and an electronic display board attached to the front of the bus that indicates that it is in a bus lane by the output from the circuit. A bus lane warning device characterized by comprising the following.