An illumination control circuit for contactless code reading

The supplementary lighting control circuit, which coordinates the control of the light sensor and the power chip, achieves asynchronous control of the light sensor and the supplementary light, solving the problems of image quality degradation and high power consumption caused by light source interference, improving the efficiency of stealth code decoding and reducing device power consumption.

CN224555815UActive Publication Date: 2026-07-24SHENZHEN IDATA TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN IDATA TECH CO LTD
Filing Date
2025-08-05
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

In existing technologies, the synchronous operation of the supplementary light and the light sensor leads to problems such as degraded image quality and high power consumption, especially when scanning invisible codes, where light source interference causes serious image quality degradation and wasted device power.

Method used

A supplementary lighting control circuit is adopted, which uses a light sensor and a power chip for coordinated control. This enables asynchronous control of the light sensor and the supplementary light, dynamically adjusts the drive current of the supplementary light through the I2C protocol, and uses time-division control of the ultraviolet supplementary light and the infrared supplementary light.

Benefits of technology

It improves the decoding efficiency of stealth codes, reduces device power consumption, avoids interference from the light sensor's acquisition of environmental data, and reduces resource waste.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224555815U_ABST
    Figure CN224555815U_ABST
Patent Text Reader

Abstract

The utility model relates to circuit technical field especially relates to a light supplementing control circuit for invisible code reading, include: first power connection end, second power connection end, CPU connection end, camera module connection end, infrared detection module, light supplementing control module, wherein, infrared detection module is connected with first power connection end, second power connection end, CPU connection end, camera module connection end, light supplementing control module respectively, light supplementing control module still is connected with first power connection end, CPU connection end, camera module connection end respectively. Through the collaborative control of light sensor and power chip, the light supplementing control module and infrared detection module asynchronous control are realized, the influence of the light supplementing lamp to the environmental data collected by the light sensor when scanning the bar code is avoided, thereby the problem of reducing image acquisition quality is reduced, and the time control of ultraviolet light supplementing lamp and infrared light supplementing lamp also effectively reduces the equipment power consumption, reduces the unnecessary resource waste.
Need to check novelty before this filing date? Find Prior Art