JPH1116084A - Acoustic controller for traffic signal device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve reliability by providing first and second ROMs storing first and second acoustic data, selecting the ROM when a first or second passing right is generated and generating first or second acoustic by a voice synthesis LSI. SOLUTION: The voice synthesis LSI 13 uses the acoustic data stored in the first ROM 14 or the second ROM 15 and generates the acoustic to be generated from a first speaker or a second speaker. In this case, the first acoustic data for the first passing right are stored in the first ROM 14 and the second acoustic data for the second passing right are stored in the second ROM 15. Then, the acoustic data stored in the first ROM 14 are selected when the passing right of a first passing direction is generated and the acoustic data stored in the second ROM 14 are selected when the passing right of a second passing direction is generated. The voice synthesis LSI 13 uses the selected acoustic data and generates the first or second acoustic.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sound control device for a traffic signal for notifying a visually impaired person of a direction in which a person can pass by sound.

[0002]

2. Description of the Related Art Conventionally, for example, when there is a pedestrian crossing road in two directions, north-south direction and east-west direction, at an intersection, the pedestrian traffic light on the north-south crossing road changes to blue.
When a right-of-way is generated in the north-south direction, for example, a sound "piyo, piyo ..." is generated from the speaker, while a traffic light for pedestrians on the east-west crossing road changes to blue, and the right-to-west direction is passed. Is generated, a sound different in tone color from the above sound, for example, a sound such as "cuckoo, cuckoo ..." is generated from the speaker.

[0003] Therefore, a visually impaired person can know in which direction a crossing road can pass by the type of sound emitted from the speaker.

[0004] The generation of sound from the above-mentioned loudspeakers is performed by using sound data stored in a ROM based on lighting control signals of blue indicator lamps of pedestrian traffic signals in the north-south direction and the east-west direction. It is configured to be generated by a synthesis LSI.

[0005]

The above-mentioned conventional acoustic pedestrian traffic signal has different tones depending on the direction of travel, which is convenient for visually impaired persons. If a sound is generated that does not match the traffic signal,
For example, in the above-described example, if the sound “cuckoo, cuckoo...” That can be passed in the east-west direction when the north-south direction is allowed to pass is dangerous to the visually impaired.

Accordingly, there has been a long-awaited need for a highly reliable acoustic signal control device for a traffic signal, in which the pedestrian traffic signal and the sound are never mismatched.

SUMMARY OF THE INVENTION The present invention has been made to meet the above-mentioned demand, and an object of the present invention is to provide a highly reliable acoustic control device for a traffic signal.

[0008]

In order to achieve the above object, an acoustic control apparatus for a traffic signal according to the present invention includes a first walk for generating a right-of-way in a first traffic direction at a road intersection. A traffic signal for pedestrians, and a second traffic signal for pedestrians for generating a right to pass in a second traffic direction different from the first traffic direction at the intersection, and A predetermined first sound is generated when a right-of-way right is generated, and a predetermined second sound different in type from the first sound when a right-of-way right is generated. A sound control device for a traffic signal having sound generation means for generating sound, wherein a first ROM storing sound data of the first sound and a sound data of the second sound are stored. The second ROM
Selecting the sound data stored in the first ROM when the right-of-way in the first direction is generated, and selecting the second sound data when the right-of-way in the second direction is generated. It is characterized by having a selecting means for selecting sound data stored in a ROM, and a speech synthesis LSI for generating the first sound or the second sound using the selected sound data.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a plan view of an intersection A where a pedestrian traffic signal to which the traffic signal acoustic control device according to one embodiment is applied is installed.

FIG. 1 (a) shows a pedestrian traffic signal 1,1.
.. Are blue indications (pedestrian traffic lights 2, 2... Are red indications), and in FIG.
Sometimes referred to as "the first right to pass." ) Has occurred,
.. Show a state in which the first sound “Piyo, Piyo...” Representing the first right of passage is generated from the speakers 3.

FIG. 1B shows a traffic signal for pedestrians 2 and 2.
.. Are blue indications (pedestrian traffic lights 1, 1... Are red indications), and a right-of-way in the second left-right direction in FIG.
Sometimes referred to as "second right of way". ) Has occurred,
The speaker 4, 4,... Is generating a sound of “cuckoo, cuckoo...” Different in type from the first sound representing the first right of passage.

FIG. 2 is a detailed view of the sound controller a for generating the first sound and the second sound.

The acoustic controller a is connected to a traffic signal b for controlling the pedestrian traffic signals 1, 1,..., 2, 2. It is configured to be able to take in a lighting signal from a lighting drive line of the blue indicator lamps 1PG and 2PG of the traffic signals 1 and 2.

That is, the sound control device a is a blue indicator lamp 1 of the pedestrian traffic signal 1 for generating the first right of traffic.
When PG is turned on, an insulation circuit T1 composed of a transformer
When the blue current indicator 2PG of the pedestrian traffic light 2 for extracting the alternating current flowing on the primary side of the pedestrian traffic signal 2 for generating the second right of way is turned on, the insulation circuit T2 composed of a transformer is used. The secondary side can extract an alternating current flowing through the primary side of the vehicle, and can take in a signal from the traffic signal controller b.

In FIG. 2, R1 is a relay that lifts (ON) when the blue indicator lamp 1PG of the pedestrian traffic signal 1 is turned on, and R2 is a blue indicator lamp 2PG of the pedestrian traffic signal 2. Is a relay that is turned ON when is lit.

In FIG. 2, a CPU 10 controls the sound controller a comprehensively. For example, a clock for setting a time for stopping sound generation at midnight and various types of the sound controller a are provided. An operator 12 for adjusting the setting conditions is provided.

In FIG. 2, reference numeral 13 denotes a voice synthesizing LSI which is driven and controlled by the CPU 10;
The sound generated from the speaker 3 or the speaker 4 can be generated using the sound data stored in the ROM 15. Also, the first ROM 14 has
The first acoustic data for the first right-of-way is stored, and the second acoustic data for the second right-of-way is stored in the second ROM 15.

The first ROM 14 is constructed so as to transmit first sound data to the speech synthesis LSI 13 under the control of the CPU 10 when receiving a drive signal from the insulating circuit T1. Is the insulation circuit T
2 is configured to be able to transmit the second acoustic data to the speech synthesis LSI 13 under the control of the CPU 10 when receiving the drive signal from the CPU 2.

Therefore, assuming now that the pedestrian traffic signal 1 has generated a first right of way as shown in FIG. 1A, the blue indicator lamp 1PG of the pedestrian traffic signal 1 will be described.
Lights up, the first ROM 14 receives the drive signal from the insulating circuit T1 and the signal from the CPU 10, and stores the first signal stored in the first ROM 14 in the voice synthesis LSI 13.
Can be transmitted.

The voice synthesis LSI 13 has a first ROM 14
A predetermined sound (piyo, piyo ...) is generated by using the first audio data input from the controller, and the generated audio signal is transmitted to the filter circuit 16, the volume switching circuit 17, the amplifier circuit 18, and the relays R1 and R2. The signal is transmitted to the speaker 3 via a contact circuit 19a composed of contacts.

The volume circuit 17 is switched under the time control of the clock 11 so that the volume of the sound generated from the speaker 3 increases during the daytime and decreases during the night. This volume adjustment may be performed by detecting the noise at the intersection A.

The contact circuit 19a is used for the pedestrian traffic signal 1
Blue indicator lamp 1PG lights up, relay R1 turns on,
The blue indicating lamp 2PG of the pedestrian traffic signal 2 is turned off and the circuit is established when the relay R2 is OFF (falling). The indicator lamp 1PG is turned off, the relay R1 is turned off, and the indicator lamp 2PG for the pedestrian traffic signal 2 is blue.
Is turned on and the circuit is established when the relay 2PG is ON, and the safety of the sound generated by the contact group of the relays R1 and R2 is ensured.

Now, a pedestrian traffic light 1 is shown in FIG.
If a second right of way is generated as shown in FIG. 3B, the blue indicator lamp 2PG of the pedestrian traffic signal 2 is turned on, so that the second ROM 15 stores the drive signal from the insulating circuit T2 and In response to the signal from the CPU 10, the second sound data stored in the second ROM 15 can be sent to the speech synthesis LSI 13.

The speech synthesis LSI 13 has a second ROM 15
A predetermined sound (parentheses, parentheses,...) Is generated using the second audio data input from the CPU, and the generated audio signals are transmitted to the filter circuit 16, the volume switching circuit 17, the amplifier circuit 18, and the relays R1, R2. The signal is sent to the speaker 3 via a contact circuit 19b composed of contacts.

As described above, the first sound data stored in the first ROM 14 is selected according to the first right of passage, and the second sound data stored in the second ROM 15 is selected according to the second right of passage. Since the acoustic data is selected, a highly reliable acoustic control device for a traffic signal can be obtained.

[0026]

According to the present invention, there is provided a traffic signal sound control apparatus for a traffic light, comprising: a first R storing sound data of a first sound;
OM and the second sound data of the sound data of the second sound.
ROM and the first R when the first right-of-way is generated.
Selecting means for selecting the sound data stored in the OM and selecting the sound data stored in the second ROM when the second right-of-way is generated; and selecting the sound data using the selected sound data. Since it is composed of the first sound or the speech synthesis LSI that generates the second sound, reliability can be improved.

[Brief description of the drawings]

FIG. 1 is a plan view of an intersection where a pedestrian traffic signal to which a traffic signal acoustic control device according to an embodiment of the present invention is applied is installed.

FIG. 2 is a detailed view of the acoustic controller.

[Explanation of symbols]

 1, 1 and 2 pedestrian traffic light 1PG, 2PG Blue indicator lamp 10 CPU 11 Clock 12 Operating device 13 Voice synthesis LSI 14 First ROM 15 Second ROM 16 Filter circuit 17 Volume switching circuit 18 Amplifying circuit 19a, 19b Contact Circuit T1, T2 Insulation circuit R1, R2 Relay

Claims (1)

[Claims] 1. A first pedestrian traffic signal that generates a right of way in a first direction of travel at an intersection of roads.
And a second pedestrian traffic signal that generates a right of passage in the intersection at a second traffic direction different from the first traffic direction, wherein the right of traffic in the first traffic direction is Generating a predetermined first sound when generated;
And a sound signal control device for a traffic light, comprising sound generating means for generating a predetermined second sound of a type different from the first sound when the right of passage in the second traffic direction is generated, A first R storing sound data of the first sound;
OM, and a second R storing sound data of the second sound.
OM; and when the right-of-way in the first traffic direction is generated, the first
Select the sound data stored in the ROM of the second RO, and when the right of passage in the second traffic direction is generated, the second RO
Traffic means for selecting sound data stored in M, and a speech synthesis LSI for generating the first sound or the second sound using the selected sound data. Sound control device for traffic lights.