JPS634398A - Traffic signal unit - 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 [Field of Industrial Application] This invention relates to a traffic signal device installed at road intersections and the like.

[Prior Art] Conventionally, there have been devices of this type as shown in FIGS. 3 and 4. Figure 3 shows the appearance of this device.
This device consists of a traffic signal controller 1 and a blue indicator light 2 which is controlled and flashed by the traffic signal controller. Yellow indicator light 3. It consists of a traffic signal light 5 with a red indicator light 4. FIG. 4 is an electric circuit diagram showing the signal system of the one shown in FIG. Each relay? , 8.9 contact 1
0, 11.12 constitute an electric circuit including three color indicator lights 2°3.4 and a power source 13, respectively.

Next, the operation of this will be explained. The traffic signal controller 1 controls the control unit 6 to select green and yellow for each traffic time segment.

Generates a signal corresponding to each red display and relays 7゜8.9
The contacts 10, 11.12 are sequentially driven, power is supplied to the blue, yellow, and red indicator lights 2, 3.4, and the traffic signal light S sequentially turns on and off in the three colors. As a result, pedestrians, car drivers, etc. facing the traffic signal light 5 can distinguish between the three types of signal light displays using their sense of sight, and proceed accordingly.
In addition, in the area of - section,
In some cases, measures have been taken to call attention to the road acoustically, such as by making chimes during times when the road is open to traffic.

[Problems to be Solved by the Invention] However, since such conventional traffic signal devices are configured as described above, it is assumed that passersby visually confirm that the three-color indicator light is lit. However, when the indicator light is exposed to strong direct sunlight, when it is backlit, or when it is in the shadow of a large vehicle or by people with low vision, the signal may be overlooked or misread. Furthermore, if the acoustic signals implemented in the - area are used, it will cause acoustic pollution to the residents near the intersection, so it is desirable to keep the volume to the minimum necessary. However, even if it is convenient for pedestrians, there are problems in that it is not very effective for drivers.

This invention was made to solve the above-mentioned problems, and it can be used when the sun's rays are in poor condition, i.e. when the driver is exposed to strong direct rays or when the driver is in a situation where the driver's vision is incorrect. However, the driver is given an acoustic or vocal warning and confirmation using signals such as electromagnetic waves.
Another object of the present invention is to obtain a traffic signal device that allows signals to be confirmed even from a remote location.

[Means for Solving the Problems] The traffic signal device according to the present invention not only extracts signals such as "pass through" and "do not pass" from traffic signals as visual signals by displaying them in different colors, but also transmits the signals by radio using electromagnetic waves or the like. This is an audible signal that is emitted into the air so that passersby can receive it and confirm it audibly.

[Function] The traffic signal device according to the present invention allows passersby to audibly confirm the traffic division signal emitted as a radio signal using a receiver, thereby eliminating misperceptions caused only by visual perception and allowing pedestrians to move further away. It is possible to recognize the signal status and pass from any location.

[Embodiment of the Invention] An embodiment of the invention will be described below with reference to the drawings. 1st
The figure shows the external appearance of this traffic signal device. In the figure, 1 is a traffic signal controller, 5 is a blue indicator light 2. Yellow indicator light 3
．． A traffic signal light consisting of a red indicator light 4, 14 a radio transmitter that converts the traffic signal into a radio signal, 15 a transmitting antenna,
Reference numeral 16 denotes a power feed line connecting the radio transmitter 14 and the transmitting antenna 15. FIG. 2 shows an electrical circuit diagram of the signal system of the traffic signal device shown in FIG. Controlled relays 10, 11 and 12 are contact points of each relay, and each blue indicator light 2. of the traffic signal light 5 is controlled by a relay. Yellow indicator light 3. An electric circuit including a red indicator light 4 and a power source 13 is configured. And 17, 18, 19 are the above-mentioned relays 10,
It is a contact point of a relay for signal extraction corresponding to 11°12,
It is connected to a wireless transmitter 14.

The traffic signal device configured as described above flashes the blue, yellow, and red indicator lights as in the past, and at the same time the relay
Contact 17 of the signal extraction relay corresponding to 0, 11, 12
, 18, and 19 are sent to the radio transmitter 14, which converts the signal into a corresponding radio signal and emits it into the air as an electromagnetic wave from the transmitting antenna 15.

The directivity of the wireless signal transmitted at this time is set depending on the road condition and road width. In other words, if there is a traffic signal device nearby, such as an intersection, that gives out different information, such as when one side is green and the other side is red, sufficient directionality is provided, but if there is a traffic signal device nearby that gives out different information such as green on one side and red on the other, If there is no traffic signal device that emits a signal, the directionality may be relaxed.

The configuration described above allows a car equipped with a radio receiver to approach an intersection, receive electromagnetic waves, and modulate this signal to receive traffic signals audibly, thereby providing information in addition to traditional visual information. With the addition of auditory information, it is possible to further strengthen the driver's attention. In addition to traffic signals, traffic guidance information such as town names and intersection numbers can also be added to this radio signal.

In the above description, the traffic signal is taken out using the contact signal of the signal take-out relay, but it may be taken out electrically directly from the control unit 6, or a coupling circuit using a microprocessor may be used.

The radio signal may range from a low frequency band to a high frequency band, such as guided radio, electromagnetic waves, or an optical signal.

The modulation methods for traffic signals are AM modulation and FM modulation.

FS modulation or the like may be used, or a digital signal may be used.

Further, in the above embodiment, a traffic signal at an intersection has been described, but the present invention can also be applied to a traffic sign installed on a road or a traffic guide device, and the same effect can be obtained.

[Effects of the Invention] As described above, according to the present invention, a radio transmitter is installed in a traffic signal device so that traffic signals are transmitted to passersby using electromagnetic waves, etc. together with flashing signals of multiple colors.
For those driving cars, in addition to visual signal confirmation,
Auditory signal confirmation can also be obtained, eliminating visual difficulty and misidentification, increasing accurate identification of traffic signals, and increasing traffic safety at intersections and the like.

[Brief explanation of the drawing]

FIG. 1 is a front view of a traffic signal device showing an embodiment of the present invention, FIG. 2 is an electric circuit diagram of the same traffic signal device, and FIG.
The figure is a front view of a conventional traffic signal device, and FIG. 4 is an electrical circuit diagram of the same traffic signal device. In the figure, 5-traffic signal light, 6-control unit, 14-radio transmitter, 15-transmission antenna. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.

Claims (2)

[Claims] (1) Equipped with a color-coded traffic signal light and a control unit that controls the display status of the traffic signal light, and converts a signal corresponding to the control signal output from the control unit to the traffic signal light into a wireless signal. What is claimed is: 1. A traffic signal device comprising a wireless transmitter and a transmitting antenna, and is capable of recognizing traffic signals as not only visual signals displayed in different colors but also auditory signals transmitted wirelessly. (2) The traffic signal device according to claim 1, characterized in that the information displayed by the traffic signal lamp is converted into wireless transmission, and at the same time, traffic guidance information is added and transmitted.