Sign capable of realizing active light emission and intelligent repair as well as control method and applications of sign

Abstract

The invention provides a sign capable of realizing active light emission and intelligent repair as well as a control method and applications of the sign. The sign comprises a sign body, an intelligent diagnostic system and a self-responding sensing circuit, wherein the sign body comprises a prism reflection layer, a light emitting layer, a light reflecting layer and a backboard; the prism reflection layer is arranged on the light emitting layer, and the light reflecting layer is located between the light emitting layer and the backboard; the light emitting layer is an independent light emitting unit formed by integrating LEDs and a PMMA (polymethyl methacrylate) board; an adjusting circuit and a backup circuit are arranged on the self-responding sensing circuit; each LED is divided into a light emitting module and a backup module which are independent of each other; the intelligent diagnostic system detects and judges working states of all the light emitting modules; the self-responding sensing circuit controls the light emitting modules and the backup modules. The sign can monitor circuit states in real time, has the advantages of high vision recognition ratio, high weather resistance, low energy consumption, capability of realizing failure self-detection and intelligent repair and the like, and is excellent in mechanical property and wide in application range.

Description

technical field [0001] The invention relates to a signboard, in particular to a signboard capable of active luminescence and intelligent restoration, a control method thereof and the application of the signboard on road traffic signs and motor vehicle license plates. Background technique [0002] Road traffic signs are traffic management facilities that use graphic symbols, colors and text to convey specific information to traffic participants. The most primitive road traffic signs are usually made of pigments, paints, wood, and iron sheets, which can only be recognized at close range under simple and good sight conditions. [0003] At the beginning of the 20th century, Dr. Dong Qifang invented and developed the reflective film technology, and applied it to the road traffic sign manufacturing industry. Its working principle is that when the "high beam" of the vehicle shines on the reflective film material on the surface of the traffic sign, a retroreflective light source is...

AI Technical Summary

Problems solved by technology

However, the existing LED active light-emitting signs also have many shortcomings in the application process. First, LED lamp beads have problems of light decay and dead spots, poor weather resistance, and dead spots of lamp beads will cause incomplete display of signs, symbols or text. And it is not easy to repair, resulting in the obstruction of traffic information transmission

The second is that the LED light-emitting sign circuit part is as prone to failure as all other electrical equipment, resulting in short circuit or open circuit of the equipment, especially in remote roads such as rural areas. Once the above situations occur, emergency maintenance is difficult to do, which will inevitably affect traffic signs usage of

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