LED guardrail tube program-controlled sound-controlled switching circuit

Abstract

The invention discloses a LED guardrail tube program-controlled audio-controlled switching circuit, which includes a guardrail tube power supply circuit and a guardrail tube control circuit. The guardrail tube power supply circuit is connected to one end of a switching power supply DY1 after a 220V AC input terminal P and a switch K1. The other end of the power supply DY1 is connected to the input terminal of the guardrail tube screen HLG power supply. The guardrail tube control circuit includes a 220V AC voltage input terminal P, a switch K1, a switch K2, a switching power supply DY2, a guardrail tube program control controller KZQ1, and a guardrail tube audio control Controller KZQ2, guardrail tube screen HLG, audio YX, loudspeaker YS, relay J1, relay J2, if the control mode of the guardrail tube is program-controlled, just turn on the switch K1; Close the switches K1 and K2, and the sound will sound at the same time; when only K2 is closed, the guardrail tube will not work, and only the sound will be working. The invention solves the problem that it is inconvenient to operate when switching the control mode of the guardrail tube, tube and screen.

Description

technical field [0001] The invention relates to a switching circuit, in particular to a program-controlled audio-controlled switching circuit for LED guardrail tubes. Background technique [0002] LED light-emitting diodes are widely used in LED guardrail tube screens for urban landscape lighting because of their low power consumption, low heat, impact resistance, high reliability, energy saving and environmental protection, soft light color, and high brightness. The LED guardrail tube screen is made of three primary colors of red, green and blue to achieve various color changes. Through the LED guardrail tube screen controller, different control signals can be output, so that the LED guardrail tube screen can change various colors in sections, and Produce various effects such as gradient, flicker, scanning, chasing, flowing water, and writing. [0003] The LED guardrail tube screen controller includes a program-controlled type controlled by ordinary programs, a sound-contr...

AI Technical Summary

Problems solved by technology

After the sound is turned off, the guardrail tube screen needs to be controlled by the program to continue to emit light, so the guardrail tube screen controller needs to switch between the program control type and the sound control type, but this switching action is more complicated and requires professionals to complete it. On the one hand, it increases the labor cost in the process of using the guardrail tube screen; on the other hand, it is not convenient for the popularization of the guardrail tube screen

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