Intelligent energy-saving traffic signal lamp device and control method thereof

Abstract

The invention discloses an intelligent energy-saving traffic signal lamp device and a control method thereof. The device comprises an LED display array plate (1), an LED drive chip (2), an MCU (Microprogrammed Control Unit) processing unit (3), a data transmission unit (4) and a power supply unit (5), wherein an annular part (16) of the LED display array plate (1) is provided with at least one ambient light detector (12), and an inner panel (13) of the LED display array plate (1) is provided with an indication lamp unit (11) at least integrating red and green colors of LEDs into a whole. The method comprises the steps of: configuring and storing a working mode and a working parameter of a signal lamp, and controlling LED combined illumination on the LED display array plate by the LED drive chip according to the working mode and the working parameter. The invention integrates displays of a plurality of traffic signals into a whole, thereby reducing the quantity of the signal lamps and lowering the influence brought by the failure of the LEDs and the cost because the brightness of the signal lamps can be automatically regulated.

Description

technical field [0001] The invention relates to the field of traffic signal lamps, in particular to an intelligent energy-saving traffic signal lamp device integrating multi-color LEDs with countdown and automatic brightness adjustment functions and a control method thereof. Background technique [0002] Most of the current traffic lights are indicated by three independent LED disc arrays of red, green and yellow. In this way, three LED disc array indicators need to be set in each direction of the road, and direction indicators need to be set at some larger intersections. Although this solution can realize the orderly control of urban traffic order, it needs to set up multiple light surfaces to display signal lights of different colors, which will increase the investment cost of equipment and is not conducive to energy saving and environmental protection. Setting multiple signal light surfaces at an intersection also takes up more space and volume, and in bad weather with s...

AI Technical Summary

Problems solved by technology

The disadvantage of this approach is that when a certain section of the control circuit fails or a certain LED fails, the LEDs in this section cannot be displayed. Even if the LEDs are connected in parallel, when a certain LED fails, it will cause the section The current flowing through other LEDs increases, which accelerates the damage of other LEDs in this segment

Moreover, this kind of display screen is large in size and high in cost, so it cannot be promoted in all road sections at present.

In addition, at present, the luminous intensity of traffic signal lights cannot be adjusted according to the light conditions of the surrounding environment. Without using solar energy, the traffic signal lights emit strong light under any circumstances, resulting in a waste of energy.

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