A long-time simultaneous online photoelectric detection method and device for a large number of LED lamps

Abstract

A long-time simultaneous on-line photoelectric detection method and device for a large number of LED lamps belongs to the field of testing. At each photodetector signal output end, a preamplifier, an A / D conversion module and a wireless transmitting module are set, and at the signal input end of the terminal microcomputer system, a wireless data receiving module controlled by a single-chip microcomputer is set; the wireless data receiving module and multiple A wireless transmitting module constitutes a many-to-one wireless signal transmission unit with a star network topology; the output signal of each photodetector is digitized and wirelessly transmitted in a sequential manner with address coding, and the wireless data receiving module is in Under the control of the single-chip microcomputer, the wireless transmission signals sent by all wireless transmission modules are automatically inspected / received according to the address code and sent to the terminal microcomputer system; the terminal microcomputer system performs real-time automatic inspection and collects the light intensity changes of each group of LED lamps Data, implement test management and centralized data processing for each lamp under test.

Description

technical field [0001] The invention belongs to the field of testing, in particular to a testing method and device for testing the service life of lamps. Background technique [0002] In recent years, with the improvement of people's living standards, the development of urban lighting projects and highway networks, the requirements for indoor lighting, road lighting and flood lighting of buildings are increasing. Therefore, various LED lighting sources and LED The demand for lamps is increasing, and the requirements are constantly improving. At the same time, it also promotes the rapid development of the LED lighting industry, and various high-efficiency and energy-saving LED lamps are also emerging. [0003] The key to evaluating the quality of any LED lamp is to see what kind of lighting effect it can achieve in practical application and its actual service life. [0004] Only LED lamps that produce good lighting effects and have a long service life in practical applicatio...

AI Technical Summary

Problems solved by technology

[0012] In the above-mentioned technical solution, from the signal transmission between multiple sets of light photodetector detection sources on site to the testing / recording microcomputer system, if wired transmission is adopted, it will bring a lot of wiring, wiring, laying and wire trough If there is a problem with a certain line, it is very difficult to find / distinguish the line, which will bring insurmountable difficulties to the implementation of the entire technical solution

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