LED lamp joint control constant current control circuit

By designing the LED light joint control constant current control circuit and adjusting the brightness of the LED light in real time, the problem of excessive darkness or brightness of the video screen of the surveillance head of the container crane spreader is solved, and a clear monitoring image is achieved and improved work efficiency and safety is improved.

CN222674531UActive Publication Date: 2025-03-25TIANXINYI INTELLIGENT NETWORK TECH (TIANJIN) CO LTD
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Patent Information

Application Number
CN202420851495.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-23
Publication Date
2025-03-25
Estimated Expiration
2034-04-23

AI Technical Summary

Technical Problem

In the locking part of the spreader for large mechanical equipment such as container cranes, excessive darkness or excessive brightness often occurs in the surveillance video screen, which makes it impossible to clearly observe the status of the locking head of the spreader.

Method used

A LED lamp joint control constant current control circuit is designed, including the main control circuit board, PLC control system, photoresistor, power supply power and LED lamp. The main control unit controls the LED lamp driving unit to adjust the brightness of the LED lamp in real time according to the photoresistor signal and the PLC control signal.

Benefits of technology

The appropriate control of the lighting intensity of the lock part of the spreader is achieved, and the exposure of the monitoring screen is maintained stably, thereby ensuring the clarity of the monitoring screen of the spreader is avoided, and the problems of insufficient light and excessive strength are improved, and working efficiency and safety are improved.

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Abstract

The utility model provides an LED lamp joint control constant current control circuit comprising a master control circuit board, and a PLC control system, a photoresistor, a power supply and a plurality of LED lamps which are connected with the master control circuit board. A main control unit, a data communication unit, a photosensitive unit and an LED lamp driving unit are integrated on the main control circuit board, the main control unit is connected with the PLC control system through the data communication unit, connected with the photosensitive resistor through the photosensitive unit and connected with the LED lamp through the LED lamp driving unit, and the main control unit is connected with a power supply. According to the utility model, the brightness of the LED lamp can be controlled in real time, so that the illumination intensity of the sling lock head part is kept in a proper state, and the exposure of a monitoring picture of the sling lock head is basically kept unchanged, so that the monitoring picture of the sling lock head is kept in a clear state, and the problems of insufficient light and over-strong light are avoided; therefore, the working efficiency is greatly improved, and the working safety is improved.
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