RU81829U1 - SECTION OF PEDESTRIAN RED LIGHT - 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. In the pedestrian red light traffic section containing chains of series-connected or parallel-connected LEDs, some of the LEDs are red LEDs and are arranged in the form of a stylized figure of a “standing” person, and the other part of the LEDs are green 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 pedestrian traffic light section so that the red LEDs that make up the “standing” figure of a person are lit when pedestrians are prohibited from crossing the carriageway, and the green LEDs are lit when the carriageway is allowed for pedestrians, with two seven-segment digital indicators, an indication of the countdown in seconds remaining before the red signal of the pedestrian traffic light turns on. The microprocessor unit includes: an input circuit that determines the presence of signals from the road controller, elements that automatically adjust the brightness of the LEDs and the sound volume from time of day. On the body of the traffic light section

mounting holes are provided to allow the assembly of pedestrian traffic lights of various configurations. In the utility model, an increase in the information content of the traffic light section is achieved, reliability is improved, installation is simplified, and the red light unit can be independently used as part of typical pedestrian traffic lights.

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; inability to use a separate red module.

The purpose of the utility model is to increase the information content of the pedestrian traffic light section, increase reliability, simplify installation, and make it possible to independently use the red light unit 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 red LEDs and arranged in the form of a stylized figure of a “standing” person, and the other part of the LEDs is green LEDs and forms 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 red LEDs forming a “standing” human figure are lit when pedestrians are prohibited from crossing the carriageway, and the green LEDs are lit when the carriageway is allowed for pedestrians, using two seven-segment digital indicators, the countdown in seconds remaining before the red 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 automatically adjust the brightness of the LEDs and the sound volume from time of day. Traffic light sections are provided on the housing

mounting holes for assembling 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 red light unit 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 (marked by white circles) LEDs on the indicator screen of the red section of the traffic light.

The pedestrian traffic light section of the red light contains (see Fig. 1): a power supply unit 1, a microprocessor unit 2, red LEDs 3 forming the figure of a standing person, green LEDs 4 forming two seven-segment digital indicators, an audio emitter 5.

When the control signal comes to the microprocessor 2 unit from the traffic light controller to turn on the red signal, the red LEDs are turned on 3. When the control signal comes to the microprocessor 2 controller from the traffic light controller to turn on the green signal, the red LEDs turn off and the green LEDs turn on, which indicate the time in seconds left to the pedestrian to cross the carriageway, while an intermittent tone sound signal is heard, accelerating the range of this a frequency of 10 seconds before the end of the account. At the same time, the microprocessor, working on

special program, constantly calculates the time intervals for the arrival of signals from the road controller to display them. If the allowed crossing time is exceeded more than 99 seconds, a flashing value of 99 is displayed. If the time is shorter than 99 seconds, the display shows the actual time in seconds remaining for the pedestrian to go.

In this case, the brightness of the LEDs and the volume of the sound accompaniment are automatically adjusted 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 and the volume of the soundtrack. 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 (2)

1. The pedestrian red traffic light section, containing chains of red and green LEDs connected in series or parallel, characterized in that it contains a power supply and a microprocessor that controls the switching of the section LEDs, as well as the red LED chains forming a stylized figure of a standing person , and the chains of green LEDs form two seven-segment digital indicators to indicate the time remaining before the red signal turns on in seconds. 2. The pedestrian red traffic light section according to claim 1, characterized in that the electronic control circuit includes elements for automatically adjusting the brightness of the LEDs and the sound volume from time of day.