KR100455433B1 - Variable voice information system in crosswalk - Google Patents

Abstract

The present invention relates to a variable pedestrian crossing voice guidance device, in the prior art by storing the stationary phrase in a read-only memory in the traffic light voice guidance device and outputs it, in order to change the guidance text or to deliver the necessary announcement broadcast each road There was a problem that all the memory installed in the need to be replaced. Accordingly, the present invention has been made to solve the above-mentioned conventional problems, the first storage unit for receiving the addressing signal output from the clock generator and the counter and outputs the stored voice data; A modem for receiving digital voice data transmitted from the control center; A central processing unit controlling the blinking of a traffic light and the output of a voice signal, and controlling the recording and reading of digital voice data received by the modem; A second storage unit for storing digital voice data received by the modem according to a control signal of the central processing unit; The control center of the central control center in addition to the function of only the signal guidance from the existing traffic lights by configuring a multiplexer to receive the data of the first storage unit and the second storage unit to select one side by the control signal of the central processing unit; In accordance with the control of the emergency and emergencies can be used as well as announcements, as well as life information guidance can provide useful information to pedestrians and vehicles.

Description

Variable pedestrian crossing voice guidance device {VARIABLE VOICE INFORMATION SYSTEM IN CROSSWALK}

The present invention relates to a variable pedestrian crossing voice guidance device that can change the audio output content of the voice guidance device when guiding the signal for pedestrians in the crosswalk, in particular, the voice guidance device as well as the basic sound output for signal guidance The present invention relates to a variable pedestrian crossing voice guidance device capable of changing a sound output content of a voice guidance device so as to output necessary disclosure or living information.

As shown in FIG. 1, in a general pedestrian traffic light, the control signal of the traffic signal controller 1 controls the blinking of the traffic light 3, and the traffic light 3 blinks in a red or green signal. In this case, the speaker 2 outputs the output signal of the traffic signal controller 1 through guide broadcasting.

Fig. 2 is a block diagram showing the configuration of a conventional pedestrian crossing voice guidance device, and as shown therein, a clock generator 4 for repeatedly outputting a pulse having a predetermined width; A counter (5) which receives the clock signal of the clock generator (4) and designates the address of the recorded voice data; A storage unit 6 for outputting voice data stored by the count signal of the counter 5; A digital / analog converter 7 for converting the digital signal output from the storage unit 6 into an analog signal; An amplifier (8) for amplifying the analog signal output from the digital / analog converter (7); A speaker (2) which receives the amplified signal of the amplifier (8) and outputs it to the outside; And a central processing unit 9 which outputs a control signal to the counter 5 and the digital-to-analog converter 7 to control the blinking of a traffic light and the output of a voice signal.

Referring to the prior art configured in this way in detail as follows.

First, the counter 5 receives the clock signal of the clock generator 4 and designates an address of the storage unit 6 to sequentially output the data input to the storage unit 6.

Then, the storage unit 6 outputs the stored data to the digital-to-analog converter 7 according to the count signal of the counter 5.

Here, the central processing unit 9 resets the counter 5 when the green signal is turned on and enables the digital-to-analog converter 7 so that the storage unit is turned on with the green signal turned on. Control to output the voice data stored in (6).

The digital-to-analog converter 7 receives the digital voice data of the storage unit 6 and converts the digital voice data into an analog signal. The analog signal is amplified by the amplifier 8 and attached to a traffic light via a line. Is printed through).

Here, the storage unit 6 is composed of a read only memory (ROM), which is a memory capable of only reading digital data for voice guidance.

In the prior art as described above, by using a fixed phrase in a read-only memory and outputting it, if you want to use the existing equipment to change the guidance text or to deliver a specific announcement broadcast memory of the voice guidance device installed on each road There was a problem that needs to be replaced.

Accordingly, the present invention has been made to solve the above-mentioned conventional problems, and includes a non-volatile memory separate from the modem in the voice guidance apparatus to replace guide text, as well as various guides to citizens of an unspecified number and a specific region. It is an object of the present invention to provide a variable pedestrian crossing voice guidance device capable of changing the sound output of the voice guidance device so as to enable broadcasting.

1 is an exemplary view of a general walking signal light.

Figure 2 is a block diagram showing the configuration of a conventional pedestrian crossing voice guidance device.

Figure 3 is a block diagram showing the configuration of the present invention variable pedestrian crossing voice guidance device.

*** Description of the symbols for the main parts of the drawings ***

4: Clock generator 5: Counter

6: first storage unit 7: digital to analog converter

8: amplifier 9: central processing unit

10: second storage unit 11: multiplexer

13: modem

The present invention for achieving the above object, the first storage unit for receiving the addressing signal and outputs the corresponding voice data; A modem for receiving digital voice data transmitted from the control center; A central processing unit controlling the blinking of a traffic light and the output of a voice signal, and controlling the recording and reading of digital voice data received by the modem; A second storage unit which receives a control signal of the central processing unit and stores and outputs digital voice data received by the modem; And a multiplexer configured to receive data from the first storage unit and the second storage unit to select and output one side by a control signal of the central processing unit.

Hereinafter, with reference to the accompanying drawings, the operation and effect of an embodiment of the present invention will be described in detail.

Figure 3 is a block diagram showing the configuration of the variable pedestrian crossing voice guidance device of the present invention, as shown therein, a clock generator for outputting a clock signal having a predetermined period; A counter 5 which receives a clock signal of the clock generator 4 and counts it; A first storage unit 6 which receives the count signal of the counter 5 and outputs the stored voice data accordingly; A modem 13 for receiving digital voice data transmitted from the control center 14; A central processing unit (9) for controlling the blinking of a traffic light and the output of a voice signal, and for controlling the recording and reading of digital voice data received by said modem (13); A second storage unit 10 which receives a control signal of the central processing unit 9 and stores and outputs digital voice data received by the modem 13; A multiplexer (11) which receives data from the first storage unit (6) and the second storage unit (10) and selects and outputs one side by a control signal of the central processing unit (9); A digital-to-analog converter 7 for receiving a digital signal output from the multiplexer 11 and converting the digital signal into an analog signal; And an amplifier 8 for amplifying the analog signal output from the digital / analog converter 7 and outputting the amplified analog signal to the speaker 2.

Referring to the operation process and effect of the embodiment according to the present invention configured as described above are as follows.

First, the counter 5 receives a clock signal from the clock generator 4 and assigns an address to the first storage unit 6 and the second storage unit 10, and then the counter 9 of the central processing unit 9 Read data stored at the address specified by the control signal.

On the other hand, the modem 13 receives data transmitted from the control center 14.

Then, the CPU 9 decompresses the data received by the modem 13 and stores the decompressed data in the second storage unit 10.

Here, the first storage unit 6 stores data for voice guidance in a read-only memory (ROM), and the second storage unit 10 stores a control center in a nonvolatile memory such as a flash memory. Read and write data transmitted in 14) frequently.

Thereafter, the multiplexer 11 receives data from the first storage unit 6 and the second storage unit 10 and outputs data according to a selection signal Select of the central processing unit 9.

The data selected by the multiplexer 11 is input to the digital-to-analog converter 7 and converted into an analog signal, which is amplified by the amplifier 8 and then output through the speaker 2.

At this time, the CPU 9 stores the data received through the modem 13 in the second storage unit 10 and then selects or changes the data in the second storage unit 10. Perform the same operation.

First, when data is selected by the second storage unit 10, the second storage unit 10 is read, and the digital / analog converter 7 is enabled.

Then, the CPU 9 outputs a select signal to the multiplexer 11, drives the clock generator 4 and the counter 5 to store the desired signal stored in the second storage unit 10. Output voice data.

Next, when the data of the second storage unit 10 is changed, the second storage unit 10 is in a write state.

Then, the central processing unit 9 drives the clock generator 4 to record new voice data in the second storage unit 10.

On the other hand, the modem 13 and the central processing unit 9 used in the present invention is economical because it can be used as both the modem and the central processing unit used for control communication in the existing controller.

In addition, the control center 14 can transmit not only the entire area but also the guidance broadcast only to traffic lights of a specific area, if necessary, and compresses and transmits the voice data in consideration of the transmission speed.

As described above, the present invention can be useful for pedestrians and vehicles as well as a function of providing only signal guidance in existing traffic lights, as well as guide information necessary in case of an emergency or emergency under the control of the central control center. It has the effect of providing information.

Claims (3)

A clock generator for outputting a clock signal having a predetermined period; A counter which receives a clock signal of the clock generator and counts the clock signal; A first storage unit which receives the count signal of the counter and outputs the stored voice data accordingly; A modem for receiving digital voice data transmitted from the control center; A central processing unit controlling the blinking of a traffic light and the output of a voice signal, and controlling the recording and reading of digital voice data received by the modem; A second storage unit which receives a control signal of the central processing unit and stores and outputs digital voice data received by the modem; A multiplexer which receives data from the first storage unit and the second storage unit and selects one side by a control signal of the central processing unit and outputs the selected data; A digital / analog converter for receiving a digital signal output from the multiplexer and converting the digital signal into an analog signal; A variable pedestrian crossing voice guidance device comprising an amplifier for amplifying the analog signal output from the digital / analog converter to output to the speaker. The variable pedestrian crossing voice guide device according to claim 1, wherein the first storage unit comprises a read-only memory. The variable pedestrian crossing voice guide device according to claim 1, wherein the second storage unit comprises a nonvolatile memory.