RU81828U1 - GREEN LIGHT TRAFFIC SECTION - Google Patents

Abstract

The inventive utility model relates to the technique of light signaling and can be used in traffic lights used to regulate the movement of pedestrians. Some of the LEDs in the section are green LEDs and are arranged in the form of a stylized figure of a “walking” person, while the other part of the LEDs are red LEDs and form two seven-segment digital indicators. The section is powered by the power unit integrated in the traffic light section. The LEDs are controlled using the microprocessor unit integrated in the traffic light section so that the green LEDs forming the figure of a “walking” person light up when the carriageway is allowed to pedestrians, while at the same time due to the alternate decrease in the intensity of the LEDs that form different legs and arms of the figure, simulated pedestrian traffic. 10 seconds before the end of the green signal, a sequential acceleration of the change of images that imitate the movement of the figure occurs. The red LEDs are on when pedestrians are prohibited from crossing the carriageway, and with the help of two seven-segment digital indicators, the countdown in seconds remaining until the green signal of the pedestrian traffic light turns on is displayed. The microprocessor unit contains: an input circuit that determines the presence of signals from the road controller, elements that automatically adjust the brightness of the LEDs from the time of day. Mounting holes are provided on the traffic light section housing, allowing

assemble pedestrian traffic lights of various configurations. In the utility model, an increase in the information content of the traffic light section, increased reliability, simplified installation, and the possibility of independent use of the green light unit as part of typical pedestrian traffic lights are achieved.

Description

The inventive utility model relates to the technique of light signaling and can be used in traffic lights used to regulate the movement of pedestrians.

Known LED traffic light (Russia, invention, patent No. 2231826 C1, IPC G08G 1/095, publ. 2004.06.27). The essence of the known invention lies in the fact that the LED traffic light contains a constant voltage source, consisting of an AC voltage source, a contact signal relay, a capacitor, a diode bridge, and an LED circuit.

The disadvantage of the known invention can be attributed to low information content when using a traffic light as a section of a certain light in a pedestrian traffic light.

A pedestrian traffic light is known, comprising a housing made with two sections with a protective glass fixed to it, a lens and blocks of red and green light emitters and microprocessors (RF patent No. 2266570 C1, IPC G08G 1/095, publ. 2005.12.20).

The disadvantages of the known invention are: low reliability of the device, because when a power source or control circuit fails, the traffic light fails completely; low maintainability, as in case of device failure

dismantle the entire traffic light to determine the defect; the inability to use a separate green module.

The purpose of the utility model is to increase the information content of the traffic light section, increase reliability, simplify installation, and make it possible to independently use the green light section as part of typical pedestrian traffic lights.

The solution to this problem is achieved by the fact that in the proposed section of the LED traffic light containing chains of series-connected or parallel-connected LEDs, some of the LEDs are green LEDs and are arranged in the form of a stylized figure of a “walking” person, and the other part of the LEDs are red LEDs and form two seven-segment digital indicator. The section is powered by the power unit integrated in the traffic light section. The LEDs are controlled using the microprocessor unit integrated in the traffic light section so that the green LEDs forming the figure of the “walking” person light up when the carriageway is allowed to pedestrians, while at the same time due to the alternate decrease in the intensity of the LEDs that form different legs and arms of the figure, simulated pedestrian traffic. The red LEDs are on when pedestrians are prohibited from crossing the carriageway, and with the help of two seven-segment digital indicators, the countdown in seconds remaining until the green signal of the pedestrian traffic light turns on is displayed. The microprocessor unit includes: an input circuit that determines the presence of signals from the road controller, elements that implement automatic

setting the brightness of the LEDs from the time of day. Mounting holes are provided on the traffic light section housing for the assembly of pedestrian traffic lights of various configurations.

The technical result achieved by using the proposed utility model is to increase the information content of the traffic light section, increase reliability, simplify installation, and make it possible to independently use the green light traffic section as part of typical pedestrian traffic lights.

The utility model is illustrated by drawings:

figure 1 shows a block diagram of a section of a traffic light;

figure 2 shows the location of the red (indicated by black circles) and green (indicated by white circles) LEDs on the indicator screen of the traffic light section of the green light.

The green light traffic section contains a power supply unit 1 (see FIG. 1), a microprocessor unit 2, green LEDs 3, forming a figure of a “walking” person, red LEDs 4, forming two seven-segment digital indicators.

Upon receipt of a control signal from the traffic light controller to the microprocessor unit 2 to turn on the red signal, the red LEDs 4 are turned on, which indicate the time in seconds remaining until the green light of the traffic light is turned on. At the same time, the microprocessor, working according to a special program, constantly calculates the time intervals for the arrival of signals from the road controller to display them. If the prohibit transition time is exceeded more than 99 seconds, a flashing value of 99 is displayed. When decreasing

less than 99 seconds, the display shows the actual value of time, in seconds, forbidden to the pedestrian to go. Upon receipt of a control signal from the traffic light controller on the microprocessor unit 2 to turn on the green signal, the red LEDs are turned off and the green LEDs 3 are turned on, forming the figure of a “walking” person. In this case, the movement of the human figure is simulated by alternately reducing the intensity of the glow of the LEDs that form different legs and arms of the figure. One stage of the movement of a human figure is imitated (see figure 2), when the LEDs forming arm 1 and leg 4 are lit with full intensity, and the LEDs forming arm 2 and leg 3 are lit with reduced intensity. Another stage of the movement of the figure is imitated when the LEDs forming arm 2 and leg 3 are lit with full intensity, and the LEDs forming arm 1 and leg 4 are lit with reduced intensity. 10 seconds before the end of the green signal, a sequential acceleration of the change of images that imitate the movement of the figure occurs. This automatically adjusts the brightness of the LEDs from the time of day. Automatic tuning is as follows. Part of the circuit elements of the microprocessor unit controls the time of day and gives a signal to reduce the brightness of the LEDs. This part of the circuit can be implemented both using a light sensor and using a real-time clock chip. Subsequently, the cycle repeats.

Claims (3)

1. The green pedestrian traffic light section, containing chains of red and green LEDs connected in series or in parallel, characterized in that it contains a power supply unit and a microprocessor unit that controls the switching of the section LEDs, as well as the fact that the green LED chains form a stylized figure " a walking person, whose movements are simulated by alternately reducing the intensity of the glow of the LEDs that form different legs and arms of the figure. 2. The green pedestrian traffic light section according to claim 1, characterized in that the section contains chains of red LEDs that form two seven-segment digital indicators to indicate the time in seconds remaining before the green signal is turned on. 3. The pedestrian traffic light section of green light according to claim 1 or 2, characterized in that the electronic control circuit includes elements for automatically adjusting the brightness of the LEDs from the time of day.