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Device and method for serial LED lamp fault detection and fault tolerance control

A technology for LED lamps and fault detection, which is applied to lighting devices, lamp circuit layout, light sources, etc., can solve the problems of large size, failure to locate fault points, and difficult to control display effects, etc., to reduce the impact of lighting effects and facilitate The effect of implementing the deployment

Inactive Publication Date: 2013-02-20
JIANGSU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this circuit only realizes the continuous transmission of the control signal bypassing the fault point. It is difficult to realize the control and display effect according to the established scheme for the imaging lamp and other lamps based on single lamp control. At the same time, the circuit cannot realize the fault point. position
In addition, since the control circuit is a control circuit based on a combination of a single-chip microcomputer and three relays, the implementation volume is relatively large, and it is difficult to meet the needs of imaging lamps and other lamps with limited single lamp volume.

Method used

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  • Device and method for serial LED lamp fault detection and fault tolerance control
  • Device and method for serial LED lamp fault detection and fault tolerance control
  • Device and method for serial LED lamp fault detection and fault tolerance control

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with accompanying drawing:

[0024] Such as figure 1 As shown, a series LED lamp fault detection and fault-tolerant control device proposed by the present invention includes a controller and multiple point light sources, the controller is installed at the beginning of the single bus, and the controller and the point light sources are serially connected through double single buses , where the lower one is used to transmit the control signal, and the upper one is used to return the location information of the fault point, both of which are transmitted through hop-by-hop relay transmission; the controller can control the defined control strategy of each point light source through the control The signal transmission bus is sent to each point light source, and the faulty point light source can send its fault location information back to the controller through the fault information return bus. Such as figu...

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Abstract

The invention relates to the field of LED lamps, in particular to a device and a method for serial LED lamp fault detection and fault tolerance control. The device for serial LED lamp fault detection and fault tolerance control comprises a controller and multiple spot light sources, wherein the controller is in serial connection with the spot light sources through double monobuses, one of the monobuses is used for transmitting control signals while the other one is used for feeding back position information of fault points, and the control signals and the position information are transmitted in a hop-by-hop relay transmission manner. The controller is mounted at the start point of the double monobuses, and each spot light source comprises a main control unit MCU, a signal analysis / relay unit, an LED driver, a current detection unit, a multi-way selection switch and LEDs. By the device and the method for serial LED lamp fault detection and fault tolerance control, defects of the prior art are overcome, and actual practice requirements for the serial LED lamps are met effectively.

Description

technical field [0001] The invention relates to the field of LED lamps, in particular to a fault detection and fault-tolerant control device and method for serial LED lamps. Background technique [0002] With the maturity and popularization of LED lighting control technology, and the advantages of LED itself such as long life, high luminous efficiency, no radiation and low power consumption, LEDs are more and more widely used in various urban lighting projects. Various serial LED lamps based on bus control, such as various running water lamps and imaging lamps, have become the protagonists of today's urban lighting. The bus types used by various serial LED lamps based on bus control mainly include dual bus represented by DMX512 and single bus represented by UCS1903 control chip. The single-bus method often uses serial cascading to transmit control signals, that is, completes data reception and decoding through one signal line, and at the same time realizes signal relay tran...

Claims

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Application Information

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IPC IPC(8): H05B37/03
Inventor 李峰黄振跃金红王以昌
Owner JIANGSU UNIV
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