KR100851023B1 - Traffic light having the display for displaying remaining time - Google Patents

Abstract

The present invention discloses a traffic light having a remaining time indicator having a remaining time voice guidance function for guiding the remaining time of walking or traffic of a traffic light by a number and at the same time by voice. The traffic light with the remaining time indicator of the present invention has an effect of clearly displaying the remaining time by the pedestrians to recognize the remaining time of walking. In addition, the traffic light of the present invention has the effect of making the visually impaired to clearly recognize the remaining walking time by outputting the corresponding remaining time as a voice. In addition, the traffic light of the present invention is used by storing various pedestrian signal time according to the length (interval) of the crosswalk in advance, and automatically set the appropriate time for the crosswalk by receiving the length of the crosswalk in which the traffic light is installed There is an effect of improving the convenience. In addition, the traffic light of the present invention is to output the advertisement or music set in advance in the stop signal as an audio signal through the speaker, thereby providing the effect of advertising and the convenience of pedestrians.

Description

Traffic light having the remaining time indicator with remaining time voice guidance

1 is a view showing the appearance of a traffic light with a general remaining time indicator.

2 is a view showing the appearance of a traffic light with a remaining time indicator of the present invention.

3 is a block diagram showing the overall configuration of a traffic light according to a preferred embodiment of the present invention.

4 is a circuit diagram showing an internal detailed configuration of a power supply unit.

FIG. 5 is a block diagram illustrating a detailed configuration of a residual time data generating unit shown in FIG. 3.

FIG. 6A is a waveform diagram illustrating the voltage of AC power output from the second step-down transformer T21 of FIG. 4, and FIG. 6B is a time remaining after being output from the control signal generator of FIG. 4. It is a waveform diagram which shows the waveform input to a data generation part.

The present invention relates to a traffic light, and more particularly to a traffic light having a remaining time indicator.

It is a well-known fact that traffic accidents are on the rise as the number of cars owned increases. However, when looking at the increasing types of traffic accidents, it can be seen that not only traffic accidents caused by collisions or collisions between vehicles but also traffic accidents at crosswalks account for a significant proportion of traffic accidents. To prevent such traffic accidents, almost all crosswalks are equipped with traffic lights.

Traffic lights installed on crosswalks generally control the crossing of pedestrians by lighting and flashing the green and red lamps alternately. In such a general traffic light, the flashing green lamp suddenly turns into a red lamp, causing a traffic accident of pedestrians crossing the crosswalk.

In order to solve this problem, it is a traffic light indicating the remaining time. The traffic light indicating the remaining time displays the remaining time from the green lamp to the red lamp, so it is possible to block pedestrians from entering the pedestrian crossing in advance, or to assist pedestrians crossing the pedestrian crossing quickly. Can be.

1 is a view showing the appearance of a general traffic light with a remaining time indicator. Referring to FIG. 1, reference numeral 1 denotes a red lamp indicating a traffic indication of a vehicle, reference numeral 2 denotes a green lamp indicating a traffic indication of a pedestrian, and 3 denotes a remaining time indicating a remaining time until a signal replacement of a traffic light. Indicates an indicator.

The remaining time indicator 3 is made up of a plurality of light emitting means, all the light emitting means is turned on when the signal of the signal lamp is replaced, and as time passes, the light emitting means is turned off one by one, and the number of lighted gradually decreases. It plays a role of indicating remaining time.

However, such a conventional remaining time indicator is a problem that the exact remaining time is not known by displaying the walking or traffic remaining time of the traffic light in a bar shape that is constantly reduced. In addition, there is a problem in that the visually impaired person cannot accurately know the remaining time of the signal due to the visual notification of the remaining time of the signal only.

The technical problem to be achieved by the present invention is to provide a traffic light to guide the remaining time to the visually impaired, as well as to display the remaining time of walking or passage with an accurate number.

A traffic light having a remaining time indicator having a remaining time voice guidance function of the present invention for achieving the above technical problem, the voice data storage unit for storing voice data corresponding to the remaining time of the walking signal; A voice signal converter for converting and outputting voice data into an analog voice signal; Remaining time display unit for displaying the remaining time of the walking signal; A central control unit for calculating a remaining time of the walking signal by operating an internal timer, outputting the remaining time to the remaining time display unit, and reading voice data corresponding to the remaining time from the voice data storage unit and outputting the voice data to the voice signal conversion unit; do.

In addition, the above-described voice data storage unit of the traffic light of the present invention further includes advertising data or music data, the central control unit reads the advertising data or music data in the stop signal and outputs to the voice signal conversion unit, the voice signal conversion unit advertising data Alternatively, the music data may be converted into an analog voice signal and output.

In addition, the above-described traffic light of the present invention is for the remaining time of the walking signal, the start time, the time interval, and the end time for the audio control unit reads the voice data corresponding to the remaining time from the voice data storage unit and outputs it to the voice signal conversion unit. The apparatus may further include a setting data storage configured to store time setting information, and the central controller may operate according to the remaining time and time setting information stored in the setting data storage.

In addition, the above-described setting data storage unit further stores a plurality of pedestrian signal residual time data according to the crosswalk length, receives the setting value for the pedestrian crossing length where the traffic light is installed, and centralizes the remaining time of the pedestrian signal corresponding to the setting value. Can be output to the controller.

Hereinafter, with reference to the accompanying drawings will be described a traffic light having a remaining time indicator according to a preferred embodiment of the present invention.

2 is a view showing the appearance of a traffic light 300 with a remaining time indicator of the present invention. Referring to FIG. 3, the traffic light 300 of the present invention includes a stop signal display unit 310 displaying a stop signal, a walking signal display unit 320 displaying a walking signal, and a remaining time display unit 330 displaying a remaining walking time. A power supply unit (not shown) for supplying power to the remaining time display unit 330, a remaining time data generation unit (not shown) for providing remaining time data to the remaining time display unit 330, and a remaining time It includes a voice output unit 360 to output to the pedestrian. However, the voice output unit 360 may be included in the enclosure of the remaining time display unit 330 and may not be exposed to the outside.

On the other hand, the term "voice" used in the present invention is not intended to mean only the sound of human speech, it should be noted that the term used as a generic term for an analog audio signal. Therefore, the voice signal of the present invention includes not only the voice of a person output through the speaker but also music.

3 is a block diagram showing the configuration of a traffic light system according to a preferred embodiment of the present invention. Referring to FIG. 3, the traffic light system of the present invention includes a traffic light control unit 200 and a traffic light 300, and the traffic light 300 includes a stop signal display unit 310 (red lamp) and a walking signal display unit 320 (green lamp). The remaining time display unit 330, the voice output unit 360, the power supply unit 350, and the remaining time data generation unit 340 are included.

The traffic light control unit 200 performs a function of selectively supplying power to the green lamp 320 and the red lamp 310 of the pedestrian traffic light and the vehicle traffic light on the intersection, and the traffic light 300 supplies power from the traffic light control unit 200. It receives a function to display the walking signal, the stop signal, and the remaining time.

The stop signal display unit 310 and the walking signal display unit 320 of the traffic light turn on or flash the red lamp and the green lamp according to the power supplied from the traffic light control unit 200.

The power supply unit 350 supplies a constant level to the remaining time display unit 330 and the remaining time data generator 340 by using the power supplied from the traffic light control unit 200 to the stop signal display unit 310 and the walking signal display unit 320. To supply power. In particular, the power supply unit 350 supplies constant power to the remaining time data generating unit 340 and the remaining time display unit 330 even while the walking signal display unit 320 repeats lighting and blinking at a predetermined time interval during the walking signal cycle. Perform the function provided.

The remaining time data generating unit 340 generates remaining time data indicating the remaining time to be displayed on the remaining time display unit 330 by using the power supplied from the power supply unit 350 and outputs the remaining time data to the remaining time display unit 330. Do this. In addition, the remaining time data generation unit 340 generates a residual time speech signal so as to guide the remaining time displayed on the remaining time display unit 330 to the voice and outputs it to the voice output unit 360.

The voice output unit 360 is implemented as a speaker and outputs a voice signal input from the remaining time data generator 340 to the pedestrian.

4 is a circuit diagram illustrating an internal configuration of the power supply unit 350. The power supply unit 350 of the present invention will be described with reference to FIG. 4. However, the power supply unit 350, which will be described later, may provide a constant power to the remaining time data generator 340 and the remaining time display unit 330 even while the walking signal display 320 repeats lighting and blinking at regular time intervals during the walking signal cycle. It is just one example for performing a function provided by), and the walking traffic light of the present invention is not limited thereto. Therefore, it should be noted that in addition to the power supply unit 350 according to the preferred embodiment of the present invention to be described later may be variously implemented.

The power supply unit 350 according to an exemplary embodiment of the present invention may include a first voltage converter 344 and 352, a first rectifier 354, a first constant voltage provider 356, a second rectifier 364, and a first power converter 350. And a second constant voltage providing unit 366, a second voltage converter 344 and 372, a third rectifier 374, and a control signal generator 378.

First, the first voltage converters 344 and 352 receive power supplied from the traffic light control unit 200 to the green lamp of the traffic light and generate the first AC power and the remaining time data to drive the remaining time indicator. The first AC power is output to the first rectifier 354, and the second AC power is output to the second rectifier 364 by converting the second AC power to drive the unit 340.

As shown in FIG. 4, the first voltage converters 344 and 352 according to the preferred embodiment of the present invention are implemented as the first step-down transformer T11 and the voltage of the power input from the traffic light controller 200. Are converted into AC 30V and AC 9V, respectively, and AC 30V is output to the first rectifier 354, and AC 9V is output to the second rectifier 364.

Meanwhile, the first rectifier 354 rectifies the first AC power input from the first voltage converters 344 and 352 to store DC power therein and outputs the DC power to the first constant voltage provider 356. The first constant voltage providing unit 356 converts the input DC power into constant voltage power and outputs the constant voltage power to the remaining time display unit 330 to drive the remaining time display unit 330.

Specifically, the first rectifying unit 354 converts the first AC power into direct current in a time period in which the green lamp is turned on during the time period in which the walking signal is displayed through the green lamp (hereinafter, referred to as "walking signal period"). At the same time as the power storage, the power is output to the first constant voltage providing unit 356, and the stored power is output to the first constant voltage providing unit 356 in a time interval during which the walking signal is blinking. The first constant voltage providing unit 356 supplies power of a predetermined voltage to the remaining time display unit 330 during the walking signal cycle regardless of the blinking of the green signal.

As shown in FIG. 4, the first rectifying unit 354 according to the preferred embodiment of the present invention includes a first bridge diode BD11 and first capacitors C11 and C21, and the first constant voltage providing unit 356. ) Is implemented by the first constant voltage IC RT11.

The first bridge diode BD11 converts the AC 30V input from the first step-down transformer T11, which is the first voltage converters 344 and 352, into a direct current during the time period during which the green lamp is turned on during the walking signal cycle. The power converted into direct current is stored in the first capacitors C11 and C21 and output to the first constant voltage IC RT11. The first constant voltage IC RT11 converts the input power into a constant power of DC 30V and outputs the same to the remaining time display unit 330. The remaining time display unit 330 displays the remaining time indicated by the remaining time data described later.

The power discharged from the first capacitor is supplied to the first constant voltage IC RT11 during the time period during which the green leakage lamp flashes during the walking signal cycle, and the first constant voltage IC RT11 converts the power input from the first capacitor to DC 30V. The remaining time is converted and output to the remaining time display unit 330 to display the walking time.

Therefore, the remaining time display unit 330 receives the power of the constant voltage DC 30V from the first constant voltage providing unit 356 during the walking signal cycle and displays the remaining time regardless of the blinking of the green lamp.

The second rectifier 364 rectifies the second AC power input from the first voltage converters 344 and 352 to store DC power therein and outputs the DC power to the second constant voltage provider 366. The second constant voltage providing unit 366 converts the input DC power into the constant voltage power and outputs the remaining time data generating unit 340.

In detail, the second rectifying unit 364 converts the second AC power into direct current and stores the same in the time period when the green lamp is turned on during the walking signal cycle, and stores the second AC power to the second constant voltage providing unit 366. In the time interval in which is flashing, the power stored therein is output to the second constant voltage providing unit 366. The second constant voltage providing unit 366 supplies power of a predetermined voltage to the remaining time data generation unit 340 during the time period in which the walking signal is displayed regardless of the blinking of the green signal.

As shown in FIG. 4, the second rectifying unit 364 according to the preferred embodiment of the present invention includes a second bridge diode BD21 and second capacitors C31 and C41, and the second constant voltage providing unit 366. ) Is implemented as the second constant voltage IC RT21.

During the time period during which the green lamp is turned on during the walking signal cycle, the second bridge diode BD21 converts AC 10V input from the first step-down transformer T11, which is the first voltage converters 344 and 352, into DC. The electric power converted into direct current is stored in the second capacitors C31 and C41 and output to the second constant voltage IC RT21. The second constant voltage IC RT21 converts the input power into a constant power of DC 5V and outputs it to the remaining time data generator 340. The remaining time data generator 340 causes the remaining time display unit 330 to display the remaining time data. The remaining time data indicating the remaining time to be displayed is output to the remaining time display unit 330.

The power discharged from the second capacitor is supplied to the second constant voltage IC RT21 during the time period during which the green lamp flashes during the walking signal period, and the second constant voltage IC RT21 converts the power input from the second capacitor to DC 5V. The remaining time data generator 340 converts the remaining time data generator 340 to output the remaining time data to the remaining time display 330.

Accordingly, the remaining time data generator 340 receives the power of the constant voltage DC 5V from the second constant voltage provider 366 during the walking signal cycle regardless of the blinking of the green lamp.

Meanwhile, the second voltage converters 344 and 372 are supplied with the power provided by the red lamp of the traffic light from the traffic light controller 200 to drive the remaining time data generator 340 and generate a control signal. The signal is converted into third AC power and output to the third rectifier 374 and the control signal generator 378.

As shown in FIG. 4, the second voltage converters 344 and 372 according to the preferred embodiment of the present invention are implemented as the second step-down transformer T21, and the voltage input from the traffic light controller 200 is AC. The signal is converted to 9V and output to the third rectifier 374 and the control signal generator 378.

Meanwhile, the third rectifier 374 rectifies the third AC power input from the second voltage converters 344 and 372, outputs the third AC power to the second rectifier 364 as described above, and directs DC into the second rectifier 364. Power is stored and output to the second constant voltage providing unit 366. As described above, the second constant voltage provider 366 converts the input power into constant voltage power and outputs the remaining time data generator 340 to drive the remaining time data generator 340.

As shown in FIG. 4, the third rectifier 374 according to the preferred embodiment of the present invention is implemented as a third bridge diode BD31 and receives DC 9V power from the second step-down transformer T21. The second transistors C31 and C41 of the second rectifier 364 and the second constant voltage IC RT21 are outputted. Then, even during the stop signal time interval (hereinafter, referred to as "stop signal period") in which the red lamp is turned on, the second capacitor stores power for driving the remaining time data generator 340, and the second constant voltage. The IC RT21 converts the power input from the third rectifier 374 into constant voltage power and outputs it to the remaining time data generator 340 so that the remaining time data generator 340 not only has a walking signal period but also a stop signal period. Is also driven.

The control signal generator 378 generates a control signal using the third AC power input from the second voltage converters 344 and 372 and outputs the control signal to the remaining time data generator 340. The remaining time data generation unit 340 captures timing to generate remaining time data according to the control signal input from the control signal generation unit 378, as described later.

The control signal generator 378 according to the preferred embodiment of the present invention is composed of a predetermined resistor and a zener diode ZD11, as shown in the figure, and remains by using AC power output from the second step-down transformer T21. The time data generating unit 340 generates the remaining time data to capture the timing to output to the remaining time display unit 330.

FIG. 6A is a waveform diagram showing the voltage of the AC power output from the second step-down transformer T21, and FIG. 6B is output from the control signal generator 378 to display the remaining time data generator. This is a waveform diagram showing a waveform input to 340. Referring to FIG. 6, when the second step-down transformer T21 outputs AC 9V / 60Hz AC power, the Zener diode ZD11 may convert the input AC power into a predetermined voltage as shown in FIG. In a preferred embodiment of the invention, the waveform is changed with 3.6 V as the reference value. In a preferred embodiment of the present invention, the control signal generator 378 outputs the signal transformed to 3.6V / 60Hz to the remaining time data generator 340.

On the other hand, the remaining time data generation unit 340 recognizes as a time period in which the stop signal is displayed while the control signal shown in (b) of FIG. 6 is input, and does not generate remaining time data. When the input of the control signal shown is stopped, it recognizes that the time period in which the walking signal is displayed is started, generates remaining time data indicating the remaining time, outputs the remaining time data to the remaining time display unit 330, and outputs a voice signal to the voice output unit 360. Will output

On the other hand, the remaining time display unit 330 receiving the remaining time data from the remaining time data generator 340 displays the remaining time indicated by the remaining time data to the pedestrian and the driver.

5 is a block diagram showing a detailed configuration of the remaining time data generating unit 340 according to a preferred embodiment of the present invention. Referring to FIG. 5, the remaining time data generator 340 according to an exemplary embodiment of the present invention may include a voice data storage 341, a signal detector 342, a voice signal converter 344, and a setting data storage. 346, a mode setting unit 345, and a central control unit 343 are basically included.

The signal detector 342 detects whether the walking signal is turned on due to the walking time by using the power supplied from the power supply 350 and outputs the detected signal to the controller. In this case, when the power supply unit 350 is implemented as described above with reference to FIG. 4, the signal detector 342 may control the control signal as shown in FIG. 6 (b) from the control signal generator 378. When the input of is stopped, it detects that the time period in which the walking signal is displayed is started, and outputs this fact to the central controller 343.

In addition, the signal detector 342 examines the power provided from the traffic light controller 200 to the stop signal display 310 and the pedestrian signal display 320 to investigate whether the signal has been changed from the stop signal to the pedestrian signal. It may be configured to output.

 Meanwhile, the signal detector 342 may not only be implemented as a separate component as shown, but also may be integrated into a function of the central controller 343 described later.

The voice data storage unit 341 stores voice data for each remaining time to be output to the user, voice data for changing a walking signal, next signal waiting request voice data, and voice data for ending a walking signal. For example, if the passage time of the pedestrian crossing on which the corresponding pedestrian traffic light is installed is 30 seconds, the voice data storage unit 341 stores voice data for 30 voice guides ranging from 30 seconds to 1 second.

The voice data storage unit 341 may store predetermined music data and advertisement data to be output to the pedestrian while displaying the stop signal, in addition to the voice data for remaining time guidance.

The voice signal converter 344 converts voice data, which is a digital signal input from the central controller 343, into an analog signal that can be output from the voice output unit, amplifies the converted analog signal, and outputs the amplified analog signal to the voice output unit. .

The setting data storage unit 346 stores setting data for a crosswalk in which a traffic light is installed. The setting data storage unit 346 stores the pedestrian signal time of the pedestrian crossing on which the traffic light is installed as basic setting data, and starts the start time for starting the voice guidance for the remaining time, the time for ending the voice guidance, and the voice guidance time interval. Save the information.

In addition, the setting data storage unit 346 may be configured to output the advertisement or music to the pedestrians during the pedestrian signal time and the stop signal according to each lane of the crosswalk, when the mode setting unit 345 described later is installed. Stores identification information of music data.

For example, the walking time (i.e., remaining time) according to the number of lanes of a crosswalk, such as 20 seconds for a round trip two lane, 35 seconds for a round trip four lane, 50 seconds for a six round trip lane, and so on. When the setting value for the interval (the number of lanes) of the pedestrian crossing is input from the mode setting unit 345 through the central control unit 343, the walking time corresponding to the setting value thereafter is stored. Outputs to). In addition, the setting data storage unit 346 stores identification information on the plurality of advertisement data or music data, and when the central control unit 343 inquires whether to output the advertisement or the music data during the stop signal, the advertisement is set as a default. Alternatively, the identification information of the music data is output to the central control unit 343, or the identification information of the advertisement or music data which is set in advance to be output at the corresponding time zone is output to the central control unit 343. Then, as described below, the central controller 343 reads advertisement or music data corresponding to the input identification information from the voice data storage 341 and outputs the advertisement or music data to the pedestrians through the voice signal converter 344.

Meanwhile, the mode setting unit 345 manages setting values such as an interval of a crosswalk (for example, four lanes and eight lanes) in which a traffic light is currently installed, a time to start remaining time voice guidance, and a time to end remaining time voice guidance. It receives the input from the output to the central control unit 343.

In addition, the mode setting unit 345 receives from the administrator whether to output advertisement or music data to pedestrians during the stop signal, and stores the setting data in the setting data storage unit 346.

When the central control unit 343 receives a detection signal indicating that the stop signal is converted into a walking signal from the signal detecting unit 342, the central control unit 343 reads the voice data according to the change of the walking signal from the voice data storage unit 341, and then generates a voice signal. The voice signal converter 344 converts and amplifies the voice data into an analog voice signal, amplifies the voice data, and outputs the voice signal to the voice output unit 360. On, OK to skip. "

Thereafter, the central control unit 343 reads the time setting values stored in the setting data storage unit 346. At this time, the central control unit 343 basically reads setting values for the walking time, the voice guidance start time, the voice guidance end time, and the voice guidance time interval.

Thereafter, the central control unit 343 operates the counter internally from the read walking time to the end of the walking time (for example, from 30 seconds to 0 seconds) to perform a count, and the remaining time is remaining in units of 1 second. The time display unit 310 outputs the remaining time to the pedestrian.

In addition, when the read voice guidance start time arrives, the central control unit 343 reads the voice data of the corresponding time from the voice data storage unit 341 for each voice guide time interval and outputs the voice data to the voice signal converter 344.

For example, if the walking time is 30 seconds, the voice guidance start time is 20 seconds, and the voice guidance time interval is 3 seconds, the central control unit 343 checks the internal timer and corresponds to 20 seconds when the remaining walking time reaches 20 seconds. The voice data is read from the voice data storage 341 and output to the voice signal converter 344. The voice signal converter 344 converts the digital voice data into an analog voice signal, amplifies it, and outputs it to the voice output unit. The voice output unit outputs a voice guidance message for the remaining time such as "20 seconds remaining" or "20 seconds".

Thereafter, when the remaining time reaches 17 seconds after 3 seconds of the voice guidance time interval elapses, the central control unit 343 reads the voice data corresponding to 17 seconds from the voice data storage unit 341 in the same manner as described above. The audio signal converter 344 converts the digital voice data into an analog voice signal, amplifies and outputs the voice signal to the voice output unit, and the voice output unit has "17 seconds remaining" or "17 seconds". The voice guidance message for the same remaining time is output.

Thereafter, when the remaining time reaches 14 seconds, the central controller 343 repeats the above-described process, and the voice guidance for the remaining time continues until the remaining time becomes 0 or the end of the voice guidance.

When the voice guidance end time is set, for example, when 10 seconds is set as the voice guidance end time in the above-described example, the central control unit 343 receives the voice data corresponding to the voice guidance end from the voice data storage unit 341. Read and output a voice guidance message such as "Please wait for the next signal" through the voice signal conversion unit 344 according to the above-described process.

In addition, the central control unit 343 reads the voice data for the end of the walking signal from the voice data storage unit 341 when the walking time ends, and the " red light is turned on " through the voice signal conversion unit 344 according to the above-described process. "Please wait for the next signal".

In addition, when the central control unit 343 is changed to the stop signal, the central control unit 343 inquires the setting data storage unit 346 to determine whether there is a voice message (music or advertisement) output to the pedestrians during the stop signal, and the predetermined advertisement. When the message or music is set to be output, identification information of corresponding advertisement or music data set as a default or set to be output to a pedestrian at a specific time period is input from the setting data storage unit 346, and the advertisement data corresponding to the identification information is received. Alternatively, the music data is read from the voice data storage 341 and output to the pedestrian through the voice signal converter 344.

However, it should be noted that while the above-described process is performed in the walking signal, the central controller 343 continuously outputs the remaining time to the remaining time display unit 310.

The invention can also be embodied as computer readable code on a computer readable recording medium. The computer-readable recording medium includes all kinds of recording devices in which data that can be read by a computer system is stored. Examples of computer-readable recording media include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage, and the like, which are also implemented in the form of a carrier wave (for example, transmission over the Internet). It also includes. The computer readable recording medium can also be distributed over network coupled computer systems so that the computer readable code is stored and executed in a distributed fashion.

So far I looked at the center of the preferred embodiment for the present invention. Those skilled in the art will appreciate that the present invention can be implemented in a modified form without departing from the essential features of the present invention. Therefore, the disclosed embodiments should be considered in descriptive sense only and not for purposes of limitation. The scope of the present invention is shown in the claims rather than the foregoing description, and all differences within the scope will be construed as being included in the present invention.

As described above, the traffic light having the remaining time indicator of the present invention has the effect of displaying the remaining time in numbers to make the pedestrians clearly recognize the remaining walking time.

In addition, the traffic light of the present invention has the effect of making the visually impaired to clearly recognize the remaining walking time by outputting the corresponding remaining time as a voice.

In addition, the traffic light of the present invention is used by storing various pedestrian signal time according to the length (interval) of the crosswalk in advance, and automatically set the appropriate time for the crosswalk by receiving the length of the crosswalk in which the traffic light is installed There is an effect of improving the convenience.

In addition, the traffic light of the present invention is to output the advertisement or music set in advance in the stop signal as an audio signal through the speaker, thereby providing the effect of advertising and the convenience of pedestrians.

Claims (4)

A voice data storage unit for storing voice data corresponding to the remaining time of the walking signal and advertisement data or music data; A voice signal converter configured to convert the voice data and the advertisement data or music data into an analog voice signal and output the analog voice signal; Remaining time display unit for displaying the remaining time of the walking signal; Setting data for storing time setting information on a start time, a time interval, and an end time of reading the remaining time of the walking signal and the voice data corresponding to the remaining time from the voice data storage and outputting the voice signal converter. Storage unit; An internal timer is operated to calculate the remaining time of the walking signal, output the remaining time to the remaining time display unit, operate according to the remaining time and time setting information stored in the setting data storage unit, and correspond to the remaining time. And a central control unit for reading the voice data from the voice data storage unit and outputting the voice data to the voice signal converter, and reading the advertisement data or music data from the stop signal and outputting the voice data to the voice signal converter. Traffic light with remaining time indicator with voice guidance. delete delete The method of claim 1, The setting data storage unit further stores the plurality of walking signal residual time data according to the crosswalk length, receives the setting value for the crosswalk length where the traffic light is installed, and receives the remaining time of the walking signal corresponding to the setting value at the center. Traffic light having a remaining time indicator having a voice guidance function characterized in that output to the control unit.

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