JP2008033534A - Voice guide device attached to pedestrian signal light device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To output an attention calling voice even if green light of a pedestrian signal light device is blinking. <P>SOLUTION: The voice guide device has a power source compensating part 8, a sound source 9, and an output control part 10. The power source compensating part 8 identifies light color signals of green light and red light output to the pedestrian signal light device 3 from a signal controller, to output a voice selection command to the output control part 10, stores electric charge of the light color signal rectified to a direct current, and discharges the stored electric charge in a light-out period to supply a driving DC power source. The sound source 9 stores records of a "crossing permitted" voice signal outputted during lighting of green light of the pedestrian signal light device 3, and of an "attention" voice signal outputted during blinking of green light. The output control part 10 is driven by the DC power source supplied from the power source compensating part 8 and outputs the voice output command to the sound source 9 based on the voice selection command inputted from the power source compensating part 8, to output a specific selected voice signal from the sound source. The specific selected voice is outputted from a loudspeaker 5. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a pedestrian guidance device that provides a pedestrian signal state by voice output to a pedestrian walking on a pedestrian crossing.

  For pedestrian-only signal lamps installed on the crossing of the road, a voice pedestrian has been used as a device to provide the pedestrian signal status by voice to pedestrians, especially those who are visually impaired. An induction adding device (hereinafter referred to as an adding device) is known.

  In FIG. 4, the pedestrian signal lamp 22 and the vehicle signal lamp 23 installed at both ends of the pedestrian crossing 21 are signaled based on the control signal supplied from the signal controller 24. The additional device 25 provides information by outputting sound to pedestrians waiting at both ends of the pedestrian crossing.

  When the blue light of the pedestrian signal lamp device 22 is turned on, the additional device 25 is supplied with a lamp color signal composed of driving power of AC 100V from the signal controller 24, and can traverse in response to the lamp color signal. (For example, “green light. Please cross over”) or onomatopoeia and music (herein, “speech”, onomatopoeia, and music are collectively referred to as “speech”).

  Conventionally, the additional device 25 is normally disposed at a relatively high position on one column where the pedestrian signal lamp 22 is disposed, and a relatively loud sound so that sound can reach the pedestrian on the opposite side. Was supposed to be output. However, since the additional device 25 is driven based on the power supply and control signal individually supplied from the signal controller, the wiring from the signal controller 24 to the additional device 25 is indispensable in Patent Document 1. The pedestrian signal lamp is pointed out to increase the work load and wiring cost at the time of installation, increase the amount of hardware of the signal controller 24, and output a sound at a high volume. A power supply circuit that outputs a predetermined power output by inputting a lamp color signal for driving the signal lamp, a start circuit that detects the power output and outputs a predetermined start output, and a predetermined audio output according to the start output Has been proposed that includes a sound generation circuit that outputs a sound and a speaker that outputs a sound output to a pedestrian.

  And when using this additional device, only a short distance from the pedestrian signal lamp to the additional device is required, and a relatively long distance from the signal controller to the additional device as in the prior art is not required. The work load and installation cost can be reduced, the amount of signal controller hardware can be reduced, and the wiring from the signal controller to the additional device is no longer necessary. It is possible to install it in the vicinity with a slight work load and installation cost, and it is relatively loud so that audio output reaches the pedestrian on the opposite side from one end of the conventional pedestrian crossing through the pedestrian crossing. It is not necessary to send out audio output, and it is only necessary to output audio output to pedestrians waiting under each additional device, emphasizing the effect that the audio output can be reduced to an appropriate volume. That.

However, the additional device is simply an attempt to secure power necessary for sound output when the blue light is lit by inputting the light color signal pg of the blue light output from the signal controller to each pedestrian signal lamp. Yes, although the power supply wiring from the signal controller to each additional device is no longer necessary, the blue light color signal that is output from the signal controller to each pedestrian signal lamp activates the start circuit and turns blue Performs a trigger function that outputs an audio output signal when the lamp is lit, and is used as a DC power source for driving only during the blue lamp lighting period. It is not possible to output a warning sound when the light flashes pw.
Patent Publication No. Hei 9-147286

  The problem to be solved is that, in the conventional additional device, only the power necessary for the sound output when the blue lamp is lit is ensured by inputting the light signal of the blue light. In addition to outputting a warning sound to the pedestrian when the light blinks pw, the function cannot be expanded to execute, for example, a volume function for sound output, a timer function for defining the sound output generation period, etc. It is.

  TECHNICAL FIELD The present invention relates to a voice guidance device that outputs pedestrian information by voice by using a light color signal of a blue light and a red light output from a signal controller as input to the pedestrian signal lamp. With the lamp color signal, the warning sound can be output not only when the blue light of the pedestrian signal lamp is lit but also when the blue light flashes, and further, the warning sound is output to the pedestrian, The main feature is that the function can be expanded to execute, for example, a sound function for a sound output, a timer function for defining a sound output generation period, and the like.

  According to the voice guidance device of the present invention, when the blue light of the pedestrian signal lamp is lit, the voice can be output arbitrarily when the blue light blinks, and further, the timer function for determining the voice output period, the calendar function, the control of the volume and other functions The necessary power supply can be secured.

    When the blue light of the pedestrian signal light is on or flashing blue light, an arbitrary audio output is generated, and the DC power supply necessary for executing the audio output period timer function, calendar function, volume adjustment function and other functions is stabilized. The purpose of ensuring is to rectify the lamp color signal input to the pedestrian signal lamp and identify the lamp color signal (blue lamp and red lamp signal) output from the signal controller to each pedestrian signal lamp Then, the voice selection command is output, and at the same time, the electric charge is stored in the capacitor (electric double layer capacitor in the present invention). This was realized by supplying a driving power supply.

  FIG. 1 shows an installation example of a voice guidance device (hereinafter referred to as a voice guidance device) attached to a pedestrian signal lamp according to the present invention. Pedestrian signal lamps 3 are installed at both ends of each pedestrian crossing 2a, 2b, 2c, 2d at an intersection (for example, a crossroad intersection) 1. Each pedestrian signal lamp 3 is provided with the voice guidance device 4 of the present invention and connected to its input terminal, and the speaker 5 is connected to the output terminal of the voice guidance device 4.

  FIG. 2 shows a configuration diagram of the voice guidance device 4 according to the present invention. In FIG. 2, the voice guidance device 4 of the present invention has a voice output unit 6 and a timer unit 7. The audio output unit 6 is roughly divided into a power supply compensation unit 8, a sound source 9, and an output control unit 10. The power supply compensator 8 discriminates the lamp color signals (blue lamp and red lamp color signals) output from the signal controller (not shown) to each pedestrian signal lamp 3 and selects the voice to the output controller 10. In addition to outputting a command, driving DC power is supplied to each of the audio output unit 6 and the timer unit 7. It has input terminals PG and PR and a common terminal COM for lamp color signals (blue and red lamp color signals) output to each pedestrian signal lamp 3 from a signal controller (not shown).

  The blue lamp color signal input terminal PG is connected to the first transformer 11a, and the red lamp color signal input terminal PR is connected to the second transformer 11b. Bridge rectifier circuits 12a and 12b and rectifiers (diodes) 13a and 13b are connected in series to the output sides of the transformers 11a and 11b, respectively. The output terminals of the bridge rectifier circuits 12a and 12b are connected to the output controller 10. The rectifiers 13a and 13b are individually connected to the output side wiring, and in the present invention, an electric storage layer, and in the present invention, an electric double layer capacitor 14 is connected in parallel, and each of the lamps includes a bridge rectifier circuit and a rectifier. The parallel circuit of the wiring, the red light signal wiring, and the electric double layer capacitor 14 connection is connected to the output control unit 10 via the stabilized power supply 15. Therefore, DC power is supplied through the stabilized power supply 15 to each part (the output control part 10, the sound source 9, the amplifier part 16) and the part (the CPU 17, etc.) constituting the timer part 7 constituting the audio output part 6.

  In short, the power supply compensator 8 performs full-wave rectification of the blue light color signal pg and the red light color signal pr output from the signal controller to the pedestrian signal lamp, and selects the sound to the output control unit 10. In addition to being output individually as a command, the electric double layer capacitor 14 compensates the power during the extinguishing period of the lamp and outputs a smoothed DC power supply.

  On the other hand, when the pedestrian signal lamp is lit in blue, the sound source 9 has a sound of “permitted to cross” to the pedestrian, for example, “Signal is blue. Let's cross the pedestrian crossing carefully” When flashing, a caution message is recorded to the pedestrian, for example, "Signal changes. Please hurry up" or "Signs change. Do not enter the pedestrian crossing". ing. The recorded content is not limited to language, and may be sound such as onomatopoeia or music to be output when the pedestrian signal lamp is lit blue or flashing.

  The output control unit 10 is driven by a DC power source supplied from the power source compensation unit 8 via the stabilized power source 15, and issues a voice output command to the sound source 9 based on the voice selection command input from the power source compensation unit 8. Outputs a specific audio signal selected based on the output of the output control unit 10, and the audio signal is amplified by the amplifier circuit 16 and output from the speaker 5 as audio.

The timer unit 7 includes a CPU (central control device) 17, a setting unit 18, and a display unit 19.

  The CPU 17 performs all functions necessary for audio output control, in addition to executing a timer function for controlling on / off of voice to the output control unit 10, a volume setting function for voice output, and a calendar function. .

  The setting unit 18 is an input device for the CPU 17 and handles a numeric keypad to input a control command to the CPU 17. The display unit 19 displays the contents input or set by the setting unit 18 with LEDs, and displays the time as a clock after the setting display.

In FIG. 3, when the lamp color signal pr of the AC 100V red light is supplied to the pedestrian signal lamp 3 from the signal controller to the pedestrian signal lamp 3 according to the current level of the signal controller (not shown). The red lamp 1PR is turned on, and at the same time, the red lamp color signal pr is input to the input terminal PR of the voice guidance device 4. Further, when a 100V blue light color signal pg is supplied to the pedestrian signal light device 3, the blue light 1G of the pedestrian signal light device 3 is turned on, and at the same time, the light color signal pg is input to the voice guidance device 4. Input to terminal PG.

  When the blue light 1PG blinks, a 100V blue light color signal pg (blue light signal) is intermittently supplied at regular intervals (interval of 0.25 seconds). Therefore, the blue light color signal pg is not supplied to the voice guidance device 4 when the light is turned off at intervals of 0.25 seconds. The first transformer 11a transforms the 100V blue light color signal pg, and the second transformer 11b transforms the 100V red light signal pr and outputs it to the bridge rectifier circuits 12a and 12b, respectively. The DC voltages that have been full-wave rectified by the rectifier circuits 12 a and 12 b are respectively input to the output control unit 10, and output from the output control unit 10 to the sound source 9 as a selection signal for the blue lamp 1PG or the red lamp 1PR.

  The outputs of the bridge rectifier circuits 12a and 12b are rectified by rectifiers (diodes) 13a and 13b, respectively, regulated by a stabilized power source 15 and regulated at a constant voltage (or a constant current), and output controlled as a stable driving DC power source. In addition to the unit 10, the sound source 9 and the amplifier circuit 16, it is supplied to the CPU 17 of the timer unit 7.

  The voltages output from the bridge rectifier circuits 12a and 12b via the diodes 13a and 13b are applied to the electric double layer capacitor 14, and electric charges are accumulated in the electric double layer capacitor 14. During the blue light flashing pw, the output of each bridge rectifier circuit stops during that period, but during that time, the electric charge charged in the electric double layer capacitor 14 is discharged, and the supply of voltage to the stabilized power supply 15 is not interrupted. Stable power is always supplied from the stabilized power supply 15 to each unit as a driving DC power supply.

  As a function of the battery, in short, when the pedestrian signal lamp is extinguished, that is, always charged by the lamp color signal input from the signal controller, discharged when the lamp color signal is not input to the voice guidance device 4, It is only necessary that the DC power supply can be continuously supplied to the output control unit 10 without interruption, but in order to realize this function, the charging capacity and output as the DC power supply must be ensured. It has been proved that the electric double layer capacitor 14 can sufficiently realize this function.

  Therefore, each part of the audio output unit 6 including the output control unit 10 and the timer unit 7 are supplied with electric power from the stabilized power supply 15 without interruption. When the blue lamp is lit, the bridge rectifier circuit 12a of the first transformer 11a A blue light lighting is detected from the output, and a sound selection command is output to the sound source 9. The amplifier circuit 16 amplifies the selected audio signal, and the pedestrian stands by from the speaker 5 in front of the pedestrian crossing for the sound, for example, “Signal is blue. Let's cross the pedestrian carefully.” Speak towards

  Similarly, when the blue light blinks, the blue light blinking is detected and a voice selection command is output, and the “warning” audio signal is selected from the sound source 9 and output to the amplifier circuit 16, and the blue light is emitted from the speaker 5. During the flashing period, the pedestrian is uttered with a “warning” sound, such as “the signal changes. Please hurry up” or “the signal changes. Do not enter the pedestrian crossing”. . When the red lamp is lit, the output controller 10 can detect the red lamp lighting from the output of the bridge rectifier circuit 12b of the second transformer 11b. In this embodiment, no special response is scheduled, so there is no response and no voice selection command is output. However, if necessary, a voice prompting the pedestrian to “standby” is uttered during the red light lighting period. It is also possible.

  This is exactly the same for selection and utterance even if the sound is a pseudo sound or music that should be output when the blue light of the pedestrian signal lamp is turned on or flashing. In the present invention, the stabilized power source is always stable regardless of whether the 100V lamp color signal supplied from the signal controller to the pedestrian signal lamp is turned on or off according to the current level of the signal controller. Since DC power is supplied to each unit as a driving DC power supply, not only the sound of “crossing permission” or “warning” selected from the sound source is uttered, but also the CPU, setting unit, and display unit of the timer unit In addition, a stable power supply can be supplied at any time, so the CPU timer function can be activated to set the voice guidance operating period to generate “crossing permission” or “attention alert” voices. Can execute functions such as display of CPU setting contents and calendar display after setting without trouble.

In the embodiment described above, the example in which the audio output unit 10 operates in accordance with the instruction of the timer unit 7 has been shown. That is, in this embodiment, the audio output unit 10 receives instructions from the CPU 17 of the timer unit 7 and controls the on / off of audio, the volume of audio output, and the like. If unnecessary, the voice guidance device is configured by the combination of the voice output unit 10 and the speaker 5 without using the timer unit 7, and the voice signal is selected from the sound source according to the routine stored in advance in the voice output unit 10, The selected audio signal can be uttered from a speaker.

  The present invention detects a blue light lighting or blinking signal from a 100 V lamp color signal supplied from a signal controller to a pedestrian signal lamp, and uses the detection signal to generate a “crossing permission” or “attention” audio signal. Regardless of whether the blue light, red light is lit or the blue light is flashing, a stable driving DC power supply can be formed and supplied to the voice output unit and timer unit built in the voice guidance device. By simply attaching the voice guidance device to the pedestrian signal lamp, it is possible to enhance the function as a traffic light for the traffic weak, particularly the visually impaired.

The state which added the audio guidance apparatus of this invention to the pedestrian signal lamp of a pedestrian crossing is shown. It is a block diagram which shows the structure of the voice guidance apparatus by this invention. It is a figure which shows the relationship between an audio guidance apparatus and a pedestrian signal lamp. It is a figure which shows the example of installation of the conventional acoustic type pedestrian guidance addition apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Crossing 2a, 2b, 2c, 2d Pedestrian crossing 3 Pedestrian signal lamp 4 Voice guidance device 5 Speaker 6 Audio | voice output part 7 Timer part 8 Power supply compensation part 9 Sound source 10 Output control part 11a 1st transformer 11b 2nd transformer 12a, 12b Bridge rectifier circuit 13a, 13b Rectifier (diode)
14 Electric Double Layer Capacitor 15 Stabilized Power Supply 16 Amplifier Circuit 17 CPU
18 Setting unit 19 Display unit 21 Crosswalk 22 Pedestrian signal lamp 23 Vehicle signal lamp 24 Signal controller 25 Additional device

Claims (5)

A voice guidance device having a voice output unit and a speaker,
The audio output unit is roughly divided into a power supply compensation unit, a sound source, and an output control unit.
The power supply compensator discriminates the light color signal of the blue light and the light color signal of the red light that are output from the signal controller to the pedestrian signal light device, and outputs a voice selection command to the output control unit. The electric charge of the rectified lamp color signal is stored in the storage battery, and during the light extinction period when the blue lamp blinks, the stored electric charge is discharged and a stable driving DC power supply is supplied to each component constituting the audio output unit And
The sound source records at least a “crossing permission” audio signal to be output to the pedestrian when the pedestrian signal lamp is lit blue, and an “attention” audio signal to be output to the pedestrian when the blue light is flashing. It is what
The output control unit is driven by the DC power supplied from the power supply compensation unit, issues a voice output command to the sound source based on the voice selection command input from the power supply compensation unit, and sends the selected specific voice signal to the sound source. Output from
The audio guidance device attached to a pedestrian signal lamp, wherein the speaker outputs a selected specific audio.   The power supply compensation unit performs full-wave rectification on each of the AC blue light color signal and the red light color signal output from the signal controller to the pedestrian signal light unit, and individually outputs the sound selection command to the output control unit. The pedestrian signal lamp according to claim 1, wherein a DC power source smoothed by compensating for electric power during a lamp extinction period is output to an output control unit. Voice guidance device attached to the container. The power supply compensator has a blue lamp color signal input terminal and a red lamp color signal input terminal, and the blue lamp color signal input terminal is connected to the first transformer,
The red light color signal input terminal is connected to the second transformer,
A bridge rectifier circuit and a rectifier are connected in series to each transformer output side,
The output terminal of each bridge rectifier circuit is individually connected to an output control unit, and the power storage ground is connected in parallel to the output side wiring of each rectifier leading to the output control unit. A voice guidance device attached to the pedestrian signal lamp according to claim 1.   4. The voice guidance device attached to a pedestrian signal lamp according to claim 1, wherein the storage battery is an electric double layer capacitor. A voice guidance device further having a timer unit in addition to the voice output unit and the speaker,
The timer unit is composed of a CPU, a setting unit, and a display unit.
The CPU performs a timer function for controlling on / off of voice to the output control unit, a volume setting function for voice output, a calendar function, and all functions necessary for voice output control.
The setting unit is an input device of the CPU, handles a numeric keypad, and inputs a control command to the CPU.
The display unit displays the contents input or set by the setting unit, and displays the time as a clock after the setting display.
2. A voice guidance device attached to a pedestrian signal lamp according to claim 1, wherein a DC power is supplied to the CPU of the timer unit via an output control unit.

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