Small barcode image acquisition module

Abstract

According to a small barcode image acquisition module, a shell is arranged to be flat, so that the thickness is reduced. An illumination window deflecting towards the opening direction of a lens is arranged on the shell, the illumination light can be guided to the front of an imaging assembly so that imaging of a barcode in a barcode image is facilitated, the illumination requirement for barcode image collection can be met without arranging an independent illumination lens, and therefore the size of an illumination area is reduced. The opening of the lens is also provided with a stepped circular recess, diffuse reflection of more stray light can be resisted, and imaging is purer when the lens collects barcode images. A circuit board is arranged at the rear end of the shell; an illuminationlight source assembly and an aiming light source assembly are arranged on the circuit board; a micro-control module can achieve control over the illumination light source assembly, the aiming light source assembly and imaging, self-control can be achieved, the micro-control module can also be affected and controlled by signals of the upper main control chip in a serial port communication mode, and therefore the barcode decoding capacity of the upper main control chip is utilized.

Description

technical field [0001] The invention relates to an image acquisition device for barcode reading, in particular to a small barcode image acquisition module. Background technique [0002] With the mobile payment scenarios of Cloud QuickPass, WeChat Pay, and Alipay spreading rapidly, the existing cashless payment has gradually shifted from card payment to barcode (mainly QR code and CODE128 code) payment. Existing card payment devices are also required to be compatible with barcode reading to apply the payment method of barcode payment. With the popularization of smart operating systems such as Android and the lowering of the threshold for hardware operation, and the popularization of 4G\5G wireless networks, payment devices are also developing towards high-speed and intelligent networks. [0003] Due to the fact that intelligent payment devices have better computing power and suitable storage space for software programs, and under the current trend of miniaturization and thin...

AI Technical Summary

Problems solved by technology

The existing barcode reading module is relatively large in size, and there are many components in the hardware circuit design, resulting in high power consumption

Illumination and aiming design usually pursue high brightness and personalized aiming indicators, resulting in high power consumption of such light source devices, which are not suitable for thin and light smart devices, and because of the language of the barcode processing program and the hardware circuit of the barcode reading module Design reasons, such as the ARM chip architecture platform commonly used by Android devices, cannot directly control the main components of the module, imaging components, lighting source components, and aiming light source components, even if the barcode control program is transplanted to Android and other platforms, so Need to bring a complete barcode decoding circuit, resulting in redundant waste of power consumption, and does not make full use of the powerful computing power of the intelligent terminal device processor

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