KR100471763B1 - Direction sounding traffic signal - Google Patents

Abstract

The present invention is a direction-directed voice traffic signal to guide the direction and the remaining time of the signal as well as the lighting state of the signal lamp, by connecting in parallel with the wiring of the existing signal without a separate wiring or external control signal input, By automatically measuring the signal lighting time as well as supply and calculating the remaining time, it is possible to install without replacing the existing signal.

In the generation of guide voice, the basic sound source generator for guiding the remaining time, start and end of the signal, and the selective sound source generator for guiding the direction of travel are installed separately to maximize versatility. At night, the volume of the guide sound is automatically reduced.

Through the present invention, by providing a voice traffic signal capable of guiding the direction and the remaining time of the signal as well as a simple signal state, the visually impaired people can pass more conveniently and safely, a significant improvement in securing the right of passage of the disabled In addition, economic effects such as social cost reduction and related industry development can be achieved through reduced traffic accidents.

Description

DIRECTION SOUNDING TRAFFIC SIGNAL

The present invention relates to a voice traffic signal, and not only to guide the signal state, but also to a direction signal voice traffic signal to guide the direction of the signal.

In general, the voice traffic signal for the visually impaired person only guides the signal state, that is, whether a walking signal is present. Therefore, where a large number of signal devices are installed, such as at a complicated intersection, it is very likely to be confused about which signal is in operation. There was a serious problem in safety, such as an accident caused by a misjudgment of the signal.

In addition, the visually impaired people are unable to recognize the surrounding features through vision, and it is very difficult to determine their exact location, so it is difficult to go out alone by unfamiliar place.

The present invention has been made in view of the above-described problems, and in generating a beep sound of a voice traffic signal, it is possible to generate a guide voice including the direction in which the corresponding signal is generated, and also to warn the remaining time until the end of the signal. .

In the generation of guide voice, the basic sound source generator for guiding the remaining time, start and end of the signal and the selective sound source generator for guiding the direction of travel are installed separately to maximize the versatility, and separate wiring or input of external control signal Without this, it is possible to install it without replacing the existing signal by connecting the wiring of the existing signal in parallel and automatically measuring the signal lighting time as well as supplying power.

In addition, in order to reduce the noise damage caused by the guide sound of the signal at night in crowded areas, it is determined whether the day or night through the illumination sensor, and the volume of the guide sound is automatically reduced at night.

The detailed structure and operation principle of the present invention will be described with reference to the accompanying drawings.

First, referring to the components of the present invention, as shown in FIGS. 1 and 2, the power supply unit 20, the periodic signal generator 30, the central processing unit 40, the standard clock generator 41, and an illumination sensor ( 42), the memory device 50, the auxiliary power source 51, the basic sound source generator 61, the selective sound source generator 62, the selection switch 63, the amplifier 70 and the speaker 71. .

The power supply unit 20 is connected to an existing signal light 10 that is turned on and off under the control of the traffic signal controller 11, and receives power. The power supply unit 20 simply connects an external power source and an internal circuit, and connects each component of the internal circuit. In addition to supplying power, the AC to DC rectification function and the overcurrent protection function may be performed as necessary. Specific examples thereof include a switching mode power supply (SMPS). Can be mentioned.

The periodic signal generator 30 connected to the power supply unit 20 transmits a periodic signal to the central processing unit 40 when power is supplied from the power supply unit 20, so that the central processing unit 40 receives the traffic light 10. It is possible to judge the lighting state of.

The central processing unit 40 corresponds to the brain of the present invention, and performs control and arithmetic functions, and the central processing unit 40 is connected to the standard clock generator 41 and the memory device 50.

The standard clock generator 41 is a unit time signal generator using a crystal oscillator or the like, and transmits predetermined unit time information, that is, a signal having a predetermined frequency, to the central processing unit 40 to provide a central processing unit ( 40) can calculate this to determine the passage of time.

The storage device 50 functions to store control information and time information of the central processing unit 40, and the auxiliary power source 51 uses a volatile memory (volatile memory) as the storage device 50. As a device in the form of a battery that maintains stored information when power supply is interrupted, when a nonvolatile memory is used as the storage device 50, an auxiliary power source 51 is not necessary. Installation of the 51 is a simple design change depending on the selection of the storage device 50, which is a problem that a person having ordinary knowledge in the field of the present invention can select in consideration of manufacturing cost and device life. There is no specific limitation in the claims of the present invention.

The basic sound source generator 61 generates a guide sound source such as a lighting state of the signal light 10 and the remaining time Tr under the control of the central processing unit 40, and the selected sound source generator 62 is a traffic light. It generates a guide sound source for the direction of (10).

As an example of the guide sound source generated by the basic sound source generation unit 61, "~ direction walking signal.", "~ Direction walking signal ~ seconds left.", "~ Direction walking signal is finished. Danger." The sound source generated by the basic sound source generator 61 and the direction guide sound source generated by the selected sound source generator 62 are combined to turn on and turn on the signal light 10 and the remaining time (Tr). The voice to guide the output will be output.

The reason for separating the basic sound source generator 61 and the selective sound source generator 62 is that the guide sound source commonly used is basically built-in regardless of the position of the traffic light 10, and the direction guide sound source using the surrounding features is This is to easily change by replacing only the selected sound source generator 62 according to the position of the traffic light 10.

In particular, when several signal units are installed at one intersection as shown in FIG. 3, one selection sound source generator 62 in which all the direction guidance sound sources are required at the intersection is installed, and this is a dip switch (DIP SWITCH). It is possible to select through the selection switch 63 of the form, thereby maximizing the storage element capacity of the selection sound source generator 62 and reducing the type of the selection sound source generator 62 required to reduce the production cost It was.

The correlation between the selection sound source generation unit 62 and the selection switch 63 is shown on the assumption of the intersection of FIG. 3, which is the same as that of FIG. 4. In this case, eight signals are installed at the intersection. It can be seen that only one selected sound source generator 62 can be applied.

In addition, in the present invention, illuminance information through the illuminance sensor 42 is input to the central processing unit 40, through which the central processing unit 40 determines whether it is day or night, and the amplification unit 70. By controlling), the control such as reducing the volume through the speaker 71 is automatically performed at night, and eliminated the complaints caused by the night noise.

5 shows a process of detecting a signal cycle in the present invention. Through this process, the signal cycle can be set by itself without external signal input or manipulation.

When the walking signal is turned on in the traffic light 10, a periodic signal is generated by the periodic signal generator 30 and input to the central processing unit 40, and the central processing unit 40 integrates the accumulated time Tt. It starts and outputs the reference time Ts detected at the previous walking signal.

Here, the output means storing the reference time Ts detected in the previous pedestrian signal in the memory device 50 as a signal period for calculating the remaining time Tr of the pedestrian signal, and FIGS. 5 and 6. "ΔT" in the contents shown in FIG. 2 is a symbol for modifying the process of the CPU 40 to recognize the unit time input from the standard clock generator 41 as the passage of time. , "ΔT" itself is not a concept equivalent to the unit time, that is, the frequency transmitted from the standard clock generator 41.

In addition, the equal sign (=) and the inequality sign (≤) used in FIGS. 5 and 6 do not mean mathematically accurate values, but are symbols for explaining the concept of the signal processing process of the present invention. If it is within the tolerance range, the expression is satisfied.

The central processing unit 40 continues to integrate the unit time input from the standard clock generation unit 41 when the walking signal is turned off, that is, until the generation of the signal by the periodic signal generation unit 30 is stopped. When the walking signal is turned off, the standard time Ts is set to the accumulated accumulated time Tt, and the accumulated time Tt is initialized to " 0 ".

Through this process, it is determined whether the calculation of the remaining time Tr and the arrival of the step time Tn are made through the set signal period. Thus, voice guidance is provided for the lighting state of the traffic light 10 and the remaining time Tr. You lose.

6 is a flowchart illustrating a process of performing voice guidance on a signal direction and a residual time Tr, which will be described in detail below.

First, when the walking signal of the traffic light 10 is turned on, that is, the periodic signal generation is started, the initialization step S10 in which the remaining time Tr and the warning step n are initialized to the standard time Ts and " 1 " After that, the direction sound source is generated according to the state of the selection switch 63 through the selection sound source generation step (S20), for example, a sound source such as "OO theater" is generated.

The generated sound source is amplified by the amplification unit 70 at a volume adjusted by day and night judgment of the illumination sensor 42 and the central processing unit 40 through the voice output step S30, and is output to the speaker 71. .

Subsequently, the start sound source is generated by the basic sound source generator 61, which is also output through the voice output step S30, and is output as, for example, "to directional walking signal."

As described above, although it is separated and processed into the selection sound source generation step (S20) and the start sound source generation step (S41), the actually heard guide sound is synthesized as "OO theater direction walking signal." There will be no.

In the next step, the residual time calculation step S51, the remaining time Tr is determined by repeatedly subtracting the unit time input from the standard clock generator 41 from the remaining time Tr, and a warning point determination step. In S52, a warning point may be determined by comparing the preset step time Tn and the remaining time Tr.

If it is determined that the warning point in the warning point determination step (S52), first output the direction guide voice by executing the selected sound source generation step (S20) and the voice output step (S30), and then the basic sound source generation unit 61 is the corresponding warning Through the warning sound source generation step (S42) and the sound output step (S30) for generating the warning sound source of step (n), the warning signal is sounded imminently, and then the warning step by the warning step operation step (S60). (n) is set to the next step.

The above-described process from the remaining time calculation step S51 to the warning step calculation step S60 is repeated until the remaining time Tr is exhausted.

As an example of the audio output, assuming that the warning stage (n) is composed of three stages, and they are set to 30 seconds before, 20 seconds before, and 10 seconds before the signal, respectively, the remaining time Tr is 30 seconds, 20 seconds, and The warning sound generated at 10 seconds is "30 seconds before signal termination" and "20 seconds before signal termination". And "It is 10 seconds before the end of the signal." These are also synthesized with the above-mentioned direction guidance voice "30 seconds before the end of the OO theater direction signal.", "20 seconds before the end of the signal for the OO theater direction." And "It is 10 seconds before the end of the signal to the OO theater."

When the remaining time (Tr) is exhausted and becomes "0 (零)", the end sound source is generated by the basic sound source generating unit 61 through the end determination step (S53) and output through the voice output step (S30), Here, the value of "0 (零)" to determine whether the remaining time (Tr) is exhausted is not "Zero" in the mathematical sense, but as necessary, to secure the minimum time required for control and communication between components or output of guide voice. The value may be set to a predetermined limit time for the safety of pedestrians.

The process of the above-described initialization step (S10) to end sound source generation step (S43) is repeated every time the walking signal of the traffic light 10 is turned on, and through this process the signal cycle of the traffic light 10 in accordance with the traffic volume When is changed, the voice traffic signal of the present invention is also linked to change the setting of the signal period.

In addition, at the moment when the signal cycle of the traffic light 10 is changed from a long cycle to a short cycle, the signal termination fact is immediately informed through an emergency stop step S99 as shown in FIGS. 5 and 6. By maximizing safety.

In the present invention operated by the above-described procedure, in the case of the signal 101 of FIG. 3, the contents of a series of voice guidance information during the walking signal are listed as follows.

Pedestrian traffic light: "It is a walking signal in OO theater direction."

30 seconds before the end of the signal: "30 seconds before the end of the signal to the OO theater."

20 seconds before the end of the signal: "20 seconds before the end of the signal to the OO theater."

10 seconds before the end of the signal: "10 seconds before the end of the signal to the OO theater."

Walk signal end: "The walking signal in the direction of OO theater has ended. It is dangerous."

As a result, the technical gist of the present invention is a voice traffic signal indicating a traffic signal state by voice, the power supply unit 20 is connected to the traffic light 10 to supply power, the power supply unit 20 is connected to the power supply signal Periodic signal generator 30 for generating a signal, the basic sound source generator 61 for generating a guide sound source for the lighting state of the signal lamp 10, the selective sound source generator for generating a guide sound source for the direction of the traffic light 10 (62), a selection switch 63 connected to the selection sound source generator 62 to select the guide sound source, an amplifier 70 for amplifying the generated sound source, a speaker 71 connected to the amplifier 70, The central processing unit 40 is connected to the above-described periodic signal generator 30, the basic sound source generator 61, the selected sound source generator 62, the amplifier 70, and controls them, and the central processor 40 ) Is composed of a memory device 50 connected to the voice guidance for the lighting state and direction of the traffic light 10 is made As the direction indicating the voice traffic signal to the studs,

The central processing unit 40 is connected to the standard clock generator 41 for generating a predetermined unit time signal. When the walking signal is turned on in the traffic light 10, the central processing unit 30 according to the signal of the periodic signal generator 30 is connected. Initialization step (S10) in which 40 initializes the remaining time (Tr) and the warning step (n), the selection sound source that the selection sound source generator 62 generates a direction guide sound source corresponding to the state of the selection switch 63 The generation step (S20), the amplification unit 70 amplifies the generated sound source and outputs to the speaker 71 (S30), the basic sound source generation unit 61 starts to generate a start sound source to signal the start of the signal Sound source generation step (S41), the remaining time calculation step (S51) in which the central processing unit 40 calculates the remaining time (Tr), the warning point judgment that the central processing unit 40 determines whether the step time (Tn) has arrived Step (S52), the warning sound source generation step (S42), the central processing plant, the basic sound source generation unit 61 generates the warning sound source of the corresponding warning step (n) Value (40) after the warning sound source generation step (S42) after the warning step operation step (S60) to change the warning step (n), the CPU 40 determines whether the end of the remaining time (Tr) Step S53, the basic sound source generator 61 repeats the operation step including the end sound source generation step (S43) for generating the end sound source and for the lighting state and direction of the traffic light 10 and the remaining time (Tr) Directional voice traffic signal characterized by the fact that the voice is made,

The central processing unit 40 is connected to the illumination sensor 42 for detecting day or night, and accordingly, the central processing unit 40 controls the volume of the speaker 71 by controlling the amplifier 70. It is a direction indication voice traffic signal.

Through the present invention, by providing a voice traffic signal capable of guiding the direction and the remaining time of the signal as well as a simple signal state, it can be said that the visually impaired people can pass more conveniently and safely to achieve a significant improvement in securing the right of passage of the disabled. In addition to securing the rights of persons with disabilities, economic benefits, such as reducing social costs and developing related industries, can be achieved by reducing traffic accidents.

1 is a schematic diagram showing the main components of the present invention.

Figure 2 is a perspective view of one embodiment of the present invention.

Figure 3 is an illustration of the intersection where the present invention is installed.

FIG. 4 is a state diagram of voice signals and selection switches of respective traffic lights in FIG. 3. FIG.

5 is a flowchart illustrating a signal cycle extraction procedure of the present invention.

6 is a flow chart showing the operating steps of the present invention.

<Code Description of Main Parts of Drawing>

10: traffic light

11: Traffic signal controller

20: power supply

30: periodic signal generator

40: central processing unit

41: standard clock generator

42: Ambient light sensor

50: storage device

51: auxiliary power

61: basic sound source generation unit

62: selection source generator

63: selection switch

70: amplification unit

71: speaker

S10: Initialization step

S20: selection source generation step

S30: voice output step

S41: start sound source generation step

S42: warning sound source generation step

S43: end sound source generation step

S51: remaining time calculation step

S52: Warning point determination stage

S53: Judgment Step

S60: warning step calculation step

S99: emergency stop

Tt: accumulated time

Ts: Standard time

Tr: remaining time

Tn: Step time

n: warning level

Claims (3)

In a voice traffic signal that displays the traffic signal state by voice, A power supply unit 20 connected to the traffic light 10 to supply power; A periodic signal generator 30 connected to the power supply 20 to generate a signal when power is supplied; A basic sound source generator 61 for generating a guide sound source for the lighting state of the traffic light 10; A selection sound source generator 62 for generating a guide sound source in the direction of the traffic light 10; A selection switch 63 connected to the selection sound source generator 62 to select the guide sound source; An amplifier 70 for amplifying the generated sound source; A speaker 71 connected to the amplifier 70; A central processing unit 40 connected to the periodic signal generator 30, the basic sound source generator 61, the selected sound source generator 62, and the amplifier 70 to control them; And a memory device (50) connected to the central processing unit (40), wherein the voice guidance signal is provided for voice information on the lighting state and the direction of the traffic light (10). The method of claim 1, wherein the central processing unit 40 is connected to the standard clock generator 41 for generating a predetermined unit time signal; An initialization step S10 of initializing the remaining time Tr and the warning step n by the central processing unit 40 according to the signal of the periodic signal generator 30 when the walking signal is turned on in the traffic light 10; A selection sound source generation step (S20) of the selection sound source generation unit 62 generating a direction guide sound source corresponding to the state of the selection switch 63; An amplifying unit 70 amplifies the generated sound source and outputs the sound to the speaker 71 (S30); A start sound source generating step (S41) of generating a start sound source for informing the signal start by the basic sound source generating unit 61; Residual time calculation step (S51) for the CPU 40 to calculate the remaining time (Tr); A warning time determination step (S52) of determining whether the central processing unit 40 has arrived at the step time Tn; A warning sound source generating step (S42) of the basic sound source generating unit 61 generating a warning sound source of the corresponding warning step (n); A warning step calculation step S60 of which the central processing unit 40 changes the warning step n after the warning sound source generation step S42; Whether or not the CPU 40 determines whether the remaining time Tr is exhausted or not (S53); The basic sound source generator 61 repeats the operation step including the end sound source generation step (S43) for generating the end sound source, and the voice guidance for the lighting state and the direction and the remaining time (Tr) of the traffic light 10 is made. Characterized by the direction indication voice traffic signal. According to claim 1, wherein the central processing unit 40 is connected to the illumination sensor 42 for detecting the day and night, accordingly, the central processing unit 40 controls the amplifier 70 by the volume of the speaker 71 Directional voice traffic signal characterized in that for adjusting the.