KR100921974B1 - Traffic signal lights and apparatus for controlling thereof - Google Patents

Abstract

The present invention relates to a traffic light and a control device thereof, and to a traffic light of a traffic light function for guiding the progress of a straight or left turn or a U-turn, etc. consisting of a plurality of light emitting diodes, and to guide or permit the prohibition of a U-turn or a P-turn, etc. It is to implement a traffic light with a traffic sign function.

To this end, the present invention is composed of any one of the array of red / green light emitting diodes or the arrangement of red / green / yellow light emitting diodes, the first signal port, red turn or display the direction of travel such as U turn, etc. Traffic light comprising a combination of at least one of a second signal port capable of displaying green, yellow color, a first remaining time display port and a second remaining time display window displaying the remaining time of each signal area by numbers or bars; ; A third signal port which displays a color signal of either red or green for prohibition, permitting or guiding on a traffic sign displaying a symbol or pattern prohibiting, permitting or guiding a vehicle or walking of a pedestrian; Ensure efficient display and operation of traffic lights and traffic signs.

Traffic lights, controllers, light emitting diodes

Description

Traffic signal lights and apparatus for controlling thereof

The present invention relates to a traffic light and a control device thereof, and more particularly, to automatically control the driving of a traffic light or a traffic sign that a plurality of light emitting diodes are assembled to form a single signal port according to ambient illumination or time. A traffic light and its control device.

In particular, the present invention, using the respective signal ports consisting of a plurality of light emitting diodes, the color display of red, green, yellow to indicate the progress of the vehicle at the intersection or pedestrian crossing, and the indication of the progress direction such as left turn or U turn and U turn or Efficient control of the display and operation of traffic lights and traffic signs required at intersections and pedestrian crossings is possible by automatically controlling the operation of traffic lights and traffic signs configured to prohibit left turn or P-turn. The present invention relates to a traffic light and a control device capable of reducing the cost of operation and management of traffic lights and traffic signs while being able to be implemented.

At the intersection or crosswalk, the three-way traffic light is composed of a combination of signals indicating stop, straight, and caution respectively with red, green, and yellow lights, or the green arrow light on the three-way traffic light in the direction of left turn. A four-hole traffic light, which is configured by further combining a left turn signal port indicating progress, is installed to guide the driving of a vehicle or the walking of a pedestrian.

In addition, two-way traffic lights consisting of two yellow lights indicating caution are installed in places requiring special attention, such as child protection zones or accident-prone areas, and these two-way traffic lights flash alternately. It is configured to repeat the operation to be able to inform the driver or pedestrians the characteristics of the area, such as child protection section or accident accident area.

The three-hole traffic light or four-way traffic light may be selectively installed in a crosswalk capable of going straight and stopping, or at an intersection of four or more distances capable of turning left and right and stopping, or a three-way intersection or a T-shaped intersection, or a crosswalk, respectively. do. In particular, the pedestrian traffic light installed in the crosswalk is additionally provided with remaining time display means for displaying the remaining time of the pedestrian traffic light through an alarm or a flashing light in order to promote the safety of the pedestrian.

A traffic light control device is connected to these three-hole or four-way traffic lights, and the traffic police officer or traffic light manager can set the operation order of the traffic lights and the operation time of each signal port externally. The signal spheres can repeat the sequential operation in a specified order for a set time.

However, in the conventional traffic signal lamp as described above, as soon as the display of the straight signal or the left turn signal turned on by the green light is turned on, the yellow light is immediately turned on, and thus the caution signal is displayed. In the case of the conventional traffic lights that the vehicle is no longer able to enter the sidewalk there is a problem that the driver can not directly predict the remaining time of the straight signal or the left turn signal to cause an accident.

Recently, a single signal port prohibits red, green, or yellow colors, or the direction of progression using arrows such as straight or left turn or U-turn or P-turn, or the prohibition symbol of straight or left turn or U-turn or P-turn. Traffic lights configured to display such lights have been developed by the present applicant and already filed on September 14, 2006 (application number 20-2006-0024734, name: 'traffic lights'), and FIG. 1B and 2 illustrate block diagrams illustrating an example of the configuration of such a traffic light and a configuration of a control device thereof.

FIG. 1A shows a combination of a first signal port 20 capable of displaying directions 21 and 22, such as a left turn or a U-turn, and a second signal port 30 capable of displaying red, green, and yellow colors. A four-hole signal lamp composed of a combination of the first remaining time display sphere 10 and the second remaining time display sphere 40 which displays the remaining time of the corresponding signal sphere using numerals 11 and 41 on both sides of each signal sphere. 1B illustrates a combination of a first signal port 20 capable of displaying a moving direction such as a left turn or a U-turn, and a second signal port 30 capable of displaying red, green, and yellow colors. A three-ball traffic light is constructed by combining a first remaining time display sphere 10 that displays the remaining time of the signal sphere beside one signal sphere.

According to the above known technology, by arranging and combining a plurality of light emitting diodes, red, green and yellow colors, or the direction of travel using arrows such as straight or left turn or U-turn, or allow or prohibit U-turn or P-turn, etc. Each signal port can be configured to display a signal, so that one or more signal ports can be used to display red, green, or yellow color, or traffic to guide a straight line, turn left, or U-turn. The traffic light is configured so that both the function of the traffic light or the function of the traffic sign indicating the permission or prohibition of the U-turn or the P-turn is possible.

In addition, according to the known traffic lights and traffic signs as described above, the remaining time indicator that can display the remaining time for the straight or left turn or U-turn signal displayed at each signal port by the number or bar, By providing at least one additionally, it is comprised so that it can guide | inform the running of a vehicle and the pedestrian walking more efficiently.

As illustrated in FIG. 2, the traffic light may include a key input unit 100 for interfacing an input operation of a traffic light control signal by a traffic policeman or a traffic light manager, a timer 210, a counter 220, and a memory ( 230 to receive and store the operation order and operation time information of each signal phrase input through the key input unit in the memory, and count the time through the timer and counter to operate the operation sequence and operation time of each signal phrase stored in the memory The microprocessor 200 which outputs a traffic light control signal for controlling the operation of each signal sphere in accordance with the information, and the operation of the light emitting diodes constituting each signal sphere with the traffic light control signal output from the microprocessor in accordance with the set operation order It comprises a traffic light 400 and a signal driver 300 for displaying a variety of traffic signals. The signal driver 300 includes a light emitting diode driver 310 for driving the light emitting diodes constituting the first signal port and the second signal port, and a time display driver 320 for driving the remaining time display port. The respective signal and time display operations are controlled by this.

However, in the above known technology, when the traffic light is a traffic light for guiding the progress of a straight or left turn or a U-turn by each signal port, the brightness of the traffic light is always turned on or off regardless of the ambient illumination. Because of the control logic, it has a disadvantage that it is difficult to see the traffic light from a distance in cloudy or dark nights.

In addition, in the above known technology, when the traffic light is a traffic light of a traffic sign function for guiding permission or prohibition of a U-turn or P-turn by each signal port, the traffic light of such a traffic sign function is always lit day and night due to its characteristics. It is a source of energy waste because it has to be kept in a stable state, and an excessive expenditure of operating and managing costs of traffic lights and traffic signs was essential.

The technical problem to be achieved by the present invention is to allow the traffic light of the traffic light function to guide the progress of the straight or left turn or U-turn, etc. displayed by each signal port composed of a plurality of light emitting diodes, and the U-turn or P-turn or the like By distinguishing the traffic light of the traffic sign function to guide the prohibition, it is possible to automatically adjust the brightness of each traffic light according to the surrounding illumination or time by turning on / off the lighting or lighting. The present invention provides a traffic light and a control device according to an illuminance so that it is possible to efficiently display and operate traffic signs while reducing energy waste due to the management and operation of traffic lights and traffic signs.

According to an embodiment of the present invention for achieving the above object, it is composed of any one of an array of red / green light emitting diodes or an array of red / green / yellow light emitting diodes, according to the LED driving signal applied from the outside The first signal port, red, green, and yellow color can be driven by driving the LEDs to display a color signal of any one of / green or red / green / yellow, and indicating a moving direction such as a left turn or a U-turn in one signal hole. In a traffic signal lamp comprising at least one of a displayable second signal port, a first remaining time display port for displaying the remaining time of each signal port with a number or a bar, and a second remaining time display port, the vehicle travels. Or, it is installed on the traffic sign displaying the symbol or pattern that prohibits, permits, or guides the pedestrian's walking. A traffic light comprising a third signal port configured with an array of red / green LEDs to display a color signal of any one of colors, and selectively displaying a symbol or pattern for prohibition, permission, or guidance in a traffic sign. to be.

The third signal port may be installed by alternately arranged a red LED and a green LED on the traffic sign indicating a prohibition pattern or a permit pattern for either the U turn or the P turn, and the indication of the symbol or the pattern displayed on the traffic sign Multiple LEDs may be installed in the area or along the edge of a symbol or design indicated on a traffic sign.

 In one embodiment of the present invention, it is preferable that the traveling direction indicating signal of the first signal sphere and the green displaying signal of the second signal sphere are set to flash for several seconds, preferably 3 to 5 seconds.

According to another embodiment of the present invention for achieving the above object, it is composed of any one of an array of red / green light emitting diodes or an array of red / green / yellow light emitting diodes, according to the LED driving signal applied from the outside The first signal port, red, green, and yellow color can be driven by driving the LEDs to display a color signal of any one of / green or red / green / yellow, and indicating a moving direction such as a left turn or a U-turn in one signal hole. A traffic signal lamp configured by combining at least one of a second signal port which can be displayed, a first remaining time display port which displays the remaining time of each signal port by numbers or bars, and a second remaining time display port; It is installed on a traffic sign displaying a symbol or pattern that prohibits, permits, or guides the driving of a vehicle or the pedestrian's walking, and according to the LED driving signal applied from the outside, red / green color signal can be displayed. A third signal port composed of an array of green LEDs for selectively displaying a symbol or a drawing for prohibition, permission or guidance in a traffic sign; An optical sensor installed at the traffic sign and detecting an illuminance around the traffic light; And a microprocessor for outputting a third signal block control signal for controlling the LED operation of the third signal port according to the illuminance value or time detected by the optical sensor.

The microprocessor compares the illuminance value detected by the optical sensor with a reference illuminance value preset in the memory, and turns off the red or green LED of the third signal port when an illuminance value higher than the reference illuminance value is detected, or the reference illuminance. If the illuminance value lower than the value is detected, the third signal port installed at the traffic sign displaying the design or prohibiting or guiding the vehicle or the pedestrian's walking, the red LED indicates the symbol allowing the vehicle or the pedestrian to walk. The third signal port installed in the traffic sign marked with b is characterized by outputting the third signal block control signal to light the green LED.

In addition, the microprocessor increases the brightness of the red / green LEDs of the first signal port or the second signal port when an illuminance value lower than the reference illuminance value is detected, and when the illuminance value higher than the reference illuminance value is detected, the first signal port. And a brightness control signal for adjusting the brightness of the red / green LED of the second signal port to be lowered.

The microprocessor turns off the red or green LED of the third signal port when the current time reaches the first reference time by comparing the current time by the built-in timer with the first reference time and the second reference time preset in the memory. Alternatively, when the current time reaches the second reference time, the third signal port installed at a traffic sign displaying a symbol or a pattern for prohibiting or guiding the vehicle or walking of a pedestrian may display a red LED. The third signal sphere installed in a traffic sign displaying a symbol or a pattern allowing walking is characterized by outputting a third signal sphere control signal to light a green LED.

In addition, the microprocessor increases the brightness of the red / green LED of the first signal port or the second signal port when the current time by the built-in timer reaches the preset second reference time, and when the first reference time is reached, And a brightness control signal for adjusting the brightness of the red / green LEDs of the first signal port and the second signal port to be lowered.

According to the present invention, it is possible to efficiently perform the display and operation of traffic lights and traffic signs required at intersections and pedestrian crossings according to surrounding illumination and time, while reducing energy waste due to the management and operation of traffic lights and traffic signs. There is an advantage that can increase the cost savings.

Hereinafter, with reference to the accompanying drawings will be described in detail the configuration and operation of the traffic light and its control apparatus according to a preferred embodiment of the present invention.

3A and 3B are exemplary views of a traffic light function of a traffic sign function according to an embodiment of the present invention, and FIGS. 4A and 4B show a traffic light of a traffic sign function according to an embodiment of the present invention, respectively. It is an illustration of the state applied to the three-hole traffic light.

FIG. 3A is a configuration example of the U-turn sign type third signal port 600a capable of selectively displaying a U-turn allowance indication or a U-turn prohibition indication (in the drawing, a case of a sign showing a U-turn allowance indication is illustrated), and FIG. 3b is a structural example of the P-turn sign type | mold 3rd signal port 600b in which P turn allowance indication is selectively possible.

As shown in the drawing, the U-turn sign type third signal port 600a has a symbol or a pattern 601 indicating a U-turn allowance or prohibition or guidance, and a plurality of light emission according to the inside or the edge of the display area. Diodes 602 and 603 are arranged in an array. The P-turn signage-type third signal port 600b has a symbol or a pattern 604 indicating a P-turn allowance or guidance, and a plurality of light emitting diodes 602 and 603 are arranged in the display area or along the edge thereof. do.

Each of the third signal ports 600a and 600b may be installed on a traffic sign that displays a symbol or a pattern indicating permission or prohibition or guidance for traffic guidance in other meanings in addition to the U-turn sign or the P-turn sign. The shape may be circular or polygonal. The light emitting diodes 602 and 603 may be configured by alternately arranging red / green LEDs so as to selectively display any one of red and green color signals according to an LED driving signal applied from the outside. LEDs of the same color may be arranged and installed to display the signal. In this case, each of the third signal ports 600a and 600b may be arranged with a green LED in a symbol or a figure indicating permission and a red LED in a symbol or a figure indicating a prohibition or guidance. In addition, the third signal ports 600a and 600b may be installed on traffic signs displaying a pattern indicating prohibition of U-turn or P-turn or other actions. In addition, the third signal ports 600a and 600b may be superimposed on a green U-turn arrow, a green P-turn arrow, or a symbol for displaying an action on another road as a prohibition sign for a U-turn, a P-turn, or other actions. It may also be possible to display a red prohibition sign (for example, a red X sign: see FIGS. 7C and 7D).

As described above, the third signal ports 600a and 600b include the first signal port 20, the second signal port 30, the first remaining time display port 10, and the second intermittent time as shown in FIGS. 4A and 4B. It may be installed on one side of the traffic light composed of at least one or more of the display sphere (40).

The first signal sphere 20 is formed in an array of red / green light emitting diodes in a circular or polygonal shape, and displays one color signal of red / green according to an LED driving signal applied from the outside, and then, within one signal sphere. It is configured to indicate the traveling direction using the arrows 21 and 22, such as a left turn or a U-turn. At this time, the first signal port 20 displays a prohibition mark (for example, a red X mark: see FIGS. 7C and 7D) superimposed on a green left turn arrow or a green U turn arrow as a left turn prohibition or U turn prohibition indication. You can do it.

The second signal port 30 is formed in an array of red, green, and yellow light emitting diodes in a circular or polygonal shape, and displays one of red, green, and yellow color signals according to an LED driving signal applied from the outside. Red, green, and yellow LEDs are selectively driven to display signals for expressing stop, progress, and attention in one signal port. In particular, the second signal port 30 may display a green arrow signal as a signal for expressing progress (straight). The direction indication signal of the first signal port 20 and the green indication signal of the second signal port 30 may blink for several seconds immediately before the corresponding signal ends, and preferably ends 3 to 5 of the corresponding signal. By setting it immediately before, the driver can accurately determine whether or not the driver may enter the intersection by referring to the blinking operation of each signal port while driving the vehicle.

The first remaining time display sphere 10 and the second remaining time display sphere 40 is a portion that displays the remaining time of each of the signal sphere 20, 30 by the numbers (11, 41) or bars (12, 42) It may be in the form of a circle or polygon. The first remaining time display port 10 shows the time (seconds) in which the left turn or U-turn signal displayed by the first signal port 20 is displayed as a down count, and the second remaining time display port 40 is displayed. Is preferably a down count of the time (seconds) at which the progress (or straight arrow), attention, and stop signals displayed on the second signal port 30 are displayed. The starting point of the down count starts with a number of reference points such as 30 seconds or 60 seconds depending on the road conditions, and then 0, in the order of 30, 29, 28 .... in descending order. Up to 0, or in order of 60, 59, 58 ... to be displayed in order. In the drawing, a case of counting from 30 seconds is illustrated, and a case of setting to 30 seconds will be described below.

5 is a block diagram illustrating a configuration of a traffic light control apparatus according to the present invention, Figure 6 is a control flow chart made by a microprocessor in the traffic light control apparatus illustrated in FIG.

As shown in FIG. 5, the traffic light control apparatus according to the present invention includes a key input unit 100 that interfaces a key input operation, and controls brightness of each signal sphere according to peripheral illumination values while controlling the operation of each signal sphere in a predetermined order. The microprocessor 200 to adjust, the traffic light 400 and a signal driver 300 for displaying various traffic signals, the third signal port 600 of the traffic sign function and its driver 610, the light for illumination detection A sensor 500 and a sensor driver 510 are included, and the signal driver 300 includes an LED driver 310 and a time display driver 320 for displaying a traffic light.

The key input unit 100 is a user interface means for assisting an input operation of a traffic light control signal by a traffic policeman or a traffic light manager, and includes a red signal holding time, a green signal holding time, a left turn display holding time, an operation start / stop signal, and one. The illumination intensity reference value, one or more reference time values, and the like may be input. It can be installed externally or embedded in the device for the traffic police to manipulate for control of the traffic volume.

The microprocessor 200A includes a timer 210, a counter 220, and a memory 230, and includes an operation sequence of each signal sphere including a red signal holding time, a green signal holding time, and the like, which are input through the key input unit. Receives and stores the operation time information, the reference illuminance value for distinguishing night and day, or one or more reference illuminance values for distinguishing clear and cloudy or foggy weather, or the reference time value in memory. When the operation start signal is input, the red signal holding time, the green signal holding time, the left turn display holding time, the reference illuminance value, and the reference time value are read from the memory 230, and the signal driver 300 is operated using a timer and a counter. By driving, the remaining time of the red, green, yellow signal, left turn and U-turn signal of the traffic light 400 is displayed. In addition, a control signal for comparing the detected illuminance value (or the current time value based on the reference time value) based on the reference illuminance value stored in the memory and adjusting the brightness of each of the first and second signal ports according to the comparison result, and A control signal for controlling the on / off of the third signal sphere is output, respectively. In the remaining time display port, it is preferable to show the time when the straight or left turn or U turn signal is displayed as a down count.

At this time, the microprocessor 200A operates the optical sensor 500 through the sensor driver 510 to convert the illuminance value detected by the optical sensor into a reference illuminance value preset in the memory (or a current time value by a timer). Compared to the reference time value preset in the memory, the operation of the third signal port 600 is controlled through the LED driver 610 having a sign function.

That is, as illustrated in FIG. 6, when the illuminance value detected by the optical sensor 500 is higher than the reference illuminance value (or when the current time value reaches the first reference time value), the first signal port 20 And a brightness control signal for adjusting the brightness of the red / green LED or the red / green / yellow LED of the second signal hole 30 to be lowered to the signal driver 300, and the red of the third signal hole 600. Alternatively, the third signal port control signal for extinguishing the green LED is output to the LED driver 610 of the traffic sign function.

On the contrary, when the illuminance value detected by the optical sensor 500 is lower than the reference illuminance value (or when the current time value reaches the second reference time value), the first signal port 20 or the second signal port 30 Outputs a brightness control signal to adjust the brightness of the red / green LED or red / green / yellow LED of the signal to the driving unit 300, and the third to light up the red or green LED of the third signal port 600 The signal sphere control signal is output to the LED driver 610 of the traffic sign function. In this case, the third signal gate control signal output from the microprocessor outputs a control signal to turn on a red LED when the third signal gate is installed in a traffic sign displaying a symbol or a pattern forbidding or guiding a vehicle or a pedestrian. When the third signal port is installed in a traffic sign displaying a symbol or a pattern that permits the driving of a vehicle or a pedestrian to walk, it will output a control signal to turn on a green LED.

The signal driver 300 receives a traffic light control signal, a remaining time display signal, etc. from the microprocessor 200A, and drives the LED driver 310 and the time display driver 320 according to the signals.

The LED driver 310 receives the traffic light control signal from the microprocessor 200A and drives the red, green, and yellow LEDs of the traffic light 400 according to the signals. The time display driver 320 receives the remaining time display signal from the microprocessor 200A, and drives the remaining time display spheres 10 and 40 of the respective signal spheres 20 and 30 according to the signal.

7A shows an example in which a U-turn sign type third signal port 600a indicating a U-turn allowance according to the present invention is installed in a two-ball signal light consisting of only the second signal port 30 and the remaining time display port 10 thereof. As shown, instead of the U-turn signage-type third signal port 600a, the P-turn signage-type third signal port 600b may be replaced depending on the location of the traffic light. The second signal port 30 displays green, red, and yellow signals, and blinks for a predetermined number of seconds immediately before the end of the operation during the time period during which the green signal is displayed. The remaining time display port 10 displays the remaining time for the straight signal displayed by the second signal port 30, and the U turn sign type third signal port 600a or the P turn sign type third signal port ( The operation 600b is controlled by the microprocessor 200A, and automatically turns on or off according to the ambient illuminance sensed by the optical sensor 500.

7B shows that the U-turn sign type third signal port 600a indicating the U turn allowance according to the present invention includes a first signal port 20 and a second signal port 30, and respective remaining time display ports 10a, An example is provided in the four-hole traffic light composed of 40a). In the drawing, each of the remaining time indicators 10a and 40a is illustrated as a bar diagram instead of a number. These bar figures can also be configured in many different forms.

7C shows a second signal indicating a straight arrow in each lane along with a first signal port 20 indicating a prohibition of turning left by a U-turn sign type third signal port 600a indicating a prohibition of a U turn according to the present invention. An example is provided at an intersection of a three-lane road in which a sphere 30a is installed, and FIG. 7D illustrates a third display port 600a of a U turn sign type indicating a prohibition of a left turn according to the present invention. An example is provided at the intersection of the three-lane road where the second signal port 30a displaying the straight arrow along with the one signal port 20 and the remaining time display port 40a are installed.

FIG. 8 illustrates an arrangement of red, green, and yellow LEDs inside each signal port applied to a traffic light according to the present invention, wherein the first signal port 20, the second signal port 30, and the third signal port ( The red, green, and yellow LEDs representing the traffic signal colors are alternately arranged to display red, green, and yellow color signals, or to display straight, left, U-turn, P-turn, and prohibition signals. Three colors of LEDs are regularly arranged in the entire interior of each signal port so as to be controlled by the microprocessor 200A through 310 and 610. Each of these signal ports is covered by an outer housing to cover the outside so as to be clearly visible not only at night but also in daylight, and to exhibit sufficient performance even in rainy weather or snowfall.

FIG. 9 illustrates an example of driving the LEDs such that the first signal port 20 simultaneously displays the left turn signal and the U turn signal in the LED arrangement example shown in FIG. 8. This is an example of simultaneous display by green LEDs at signal ports.

In the above, the present invention has been shown and described with respect to certain preferred embodiments. However, the present invention is not limited only to the above-described embodiments, and those skilled in the art to which the present invention pertains may change variously without departing from the gist of the technical idea of the present invention described in the claims below. Could be done.

1A and 1B are exemplary views of a four-prong traffic light and a three-prong traffic light according to the prior art.

2 is a block diagram of a traffic light control apparatus according to the prior art.

3A and 3B are diagrams showing an example of display of a traffic light having a traffic sign function according to an embodiment of the present invention.

4A and 4B are exemplary views of a state in which a traffic light having a traffic sign function according to an embodiment of the present invention is applied to a four-hole traffic light and a three-hole traffic light, respectively.

5 is a block diagram illustrating a configuration of a traffic light control apparatus according to the present invention.

FIG. 6 is a control flowchart performed by a microprocessor in the traffic light control device illustrated in FIG. 5.

FIG. 7A shows an example in which a U-turn sign type third signal sphere indicating U turn allowance according to the present invention is installed in a two-hole signal lamp composed of only the second signal sphere and its remaining time display sphere.

FIG. 7B shows an example in which a U-turn sign type third signal sphere indicating U turn allowance according to the present invention is installed in a four-hole signal lamp composed of a first signal sphere, a second signal sphere, and each remaining time indicator.

7C and 7D are exemplary views of a state in which the third signal port indicating the U turn prohibition and the left turn prohibition according to the present invention is used together with the second signal port provided in each lane.

Figure 8 is an exemplary view of the red, green, yellow LED array inside each signal port applied to the traffic light according to the present invention.

FIG. 9 illustrates an LED driving example in which the first signal port simultaneously displays a left turn signal and a U turn signal in the LED arrangement example of FIG. 8.

<Description of the symbols for the main parts of the drawings>

10,40: remaining time display port 20: first signal port

30: second signal port 100: key input unit

200200 A: Microprocessor 210: Timer

220: counter 230: memory

300: signal driver 310,610: LED driver

320: time display driving unit 400: traffic light

500: optical sensor 510: sensor drive unit

600,600a, 600b: third signal port 601: U-turn display pattern

602,603: LED 604: P turn display pattern

Claims (20)

delete delete delete delete delete It is composed of either an array of red / green light emitting diodes or an array of red / green / yellow light emitting diodes, and displays any one of the color signals of red / green or red / green / yellow according to an LED driving signal applied from the outside. LEDs are driven so that a first signal port capable of displaying a left turn or a U-turn direction in one signal port, a second signal port capable of displaying one of red, green or yellow colors, and the remaining time of the first signal port In a traffic light comprising a combination of at least one or more of the first remaining time display port for displaying the number in a number or bar, and the second remaining time display port for displaying the remaining time of the second signal in number or bar, It is installed on a traffic sign displaying a symbol or pattern that prohibits, permits, or guides the driving of a vehicle or the pedestrian's walking, and according to the LED driving signal applied from the outside, red / green color signal can be displayed. It is made of an array of green LED further comprises a third signal port 600 to selectively display a symbol or pattern for prohibition or allowance or guidance in one traffic sign, The third signal port 600 is installed on a traffic sign indicating a prohibition or allowance of U-turns, P-turn allowable design, The direction indication signal of the first signal port 20 and the green indication signal of the second signal port 30 are made to blink for several seconds, but the direction indication signal and the second signal of the first signal port 20 are blinked. Flashing of the green indicator signal of the sphere 30 is set to 3 to 5 seconds, The third signal port 600 is composed of a plurality of LEDs are installed along the edge of the sign or pattern displayed on the traffic sign, The traffic sign is equipped with an optical sensor for detecting the illumination around the traffic light, the operation of the LED of the third signal port is controlled according to the illumination value detected by the light sensor or the current time value. Device. delete delete delete delete delete delete delete delete It is composed of either an array of red / green light emitting diodes or an array of red / green / yellow light emitting diodes, and displays any one of the color signals of red / green or red / green / yellow according to an LED driving signal applied from the outside. Drive the LEDs so that the first signal port 20 capable of indicating the left turn or the U-turn direction in one signal port, the second signal port 30 capable of displaying one color of red, green, or yellow; At least one or more of the first remaining time display port 10 for displaying the remaining time of the first signal sphere in numbers or bars, and the second remaining time display sphere 40 for displaying the remaining time of the second signal sphere in numbers or bars. A traffic light composed of a combination; It is installed on a traffic sign displaying a symbol or pattern that prohibits, permits, or guides the driving of a vehicle or the pedestrian's walking, and according to the LED driving signal applied from the outside, red / green color signal can be displayed. A third signal port 600 composed of an array of green LEDs to selectively display symbols or drawings for prohibition, permission, or guidance in one traffic sign; An optical sensor 500 installed at the traffic sign and detecting illumination of a traffic light; Outputs a third signal sphere control signal for controlling the LED operation of the third signal sphere according to the illuminance value or the current time value detected by the optical sensor, When the illuminance value detected by the optical sensor is compared with the reference illuminance value preset in the memory and the illuminance value higher than the reference illuminance value is detected, the third signal port control signal for turning off the red or green LED of the third signal port is outputted. , Outputting a third signal sphere control signal for lighting a red or green LED of the third signal sphere when an illumination value lower than the reference illuminance value is detected as a result of the comparison of the detected illumination value and the reference illumination value; Comparing the current time value by the timer with the first reference time value and the second reference time value preset in the memory, and turning off the red or green LED of the third signal port when the current time reaches the first reference time value. A microprocessor (200A) outputting a three signal sphere control signal and outputting a third signal sphere control signal for lighting a red or green LED of the third signal sphere when the current time reaches a second reference time value; Traffic light control device comprising a. delete delete delete delete delete

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