Omnidirectional multiple line laser bar code reading device and method thereof

A multi-line laser and reading device technology, applied in the field of laser barcode recognition research, can solve the problems of inability to perform fast decoding, slow recognition speed, low scanning speed, etc., and achieve expanded placement range, high speed and accuracy, and fast The effect of decoding

Active Publication Date: 2012-08-08
广州优库电子有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method has the following disadvantages: (1) Although this method reduces the hardware structure and uses more software algorithms for reading, it also causes slow recogniti

Method used

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  • Omnidirectional multiple line laser bar code reading device and method thereof
  • Omnidirectional multiple line laser bar code reading device and method thereof
  • Omnidirectional multiple line laser bar code reading device and method thereof

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Embodiment 1

[0041] Such as figure 1 As shown, an omnidirectional multi-line laser barcode reading device includes a processor, a DAC output circuit, a motor control circuit, a laser, a motor, a laser rotating mechanism, a laser receiver, a front-end signal conditioning circuit, a width sampling circuit, and a decoding circuit , The processor is connected to the DAC output circuit, motor control circuit, decoding circuit, and communication circuit respectively. The DAC output circuit is connected to the laser, the motor control circuit is connected to the motor, the motor drives the laser rotating mechanism to rotate, the laser receiver, the front-end signal conditioning circuit, The width sampling circuit and the decoding circuit are connected in sequence. During operation, the laser scanning line emitted by the laser rotating mechanism irradiates the barcode, and the laser receiver receives the information reflected on the barcode. Among them: the processor is used to send control signals ...

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Abstract

The invention discloses an onidirectional multiple line laser bar code reading device and a method thereof. The apparatus comprises a processor, a DAC (digital to analog converter) output circuit, a motor control circuit, a laser, a motor, a laser rotation mechanism, a laser receiver, a front end signal conditioning circuit, a width sampling circuit and a decoding circuit. The processor is connected with the DAC output circuit, the motor control circuit, the decoding circuit and a communication circuit respectively. The DAC output circuit is connected with the laser. The motor control circuit is connected with the motor. The motor drives the laser rotation mechanism to rotate. The laser receiver, the front end signal conditioning circuit, the width sampling circuit and the decoding circuit are successively connected with each other. The method is characterized by: if bar code information is incomplete, reading the bar code information obtained by another scanning line; and then integrating and recombining the back and forth two groups of the information so as to obtain a complete bar code scanning result. Aiming at wrinkling, damage and the reflective barcode, by using the device and the method of the invention, rapid decoding can be realized; a user can feel smooth barcode reading; working efficiency can be increased.

Description

Technical field [0001] The invention relates to the research field of laser bar code recognition, in particular to an omnidirectional multi-line laser bar code reading device and method. Background technique [0002] A barcode reader is a device used to read the information contained in a barcode. It has accurate identification, fast data input speed, simple equipment and low cost, and has been more and more widely used in many occasions such as supermarkets, libraries, and warehouses. According to different light sources, barcode readers can be divided into rainbow barcode readers (also called CCD scanners) and laser barcode readers. Rainbow Barcode Reader uses the principle of photoelectric coupling (CCD) to image the barcode printing pattern and then decode it. Its advantages are: no shaft, motor, long service life; low price. The laser barcode reader is a single-line scanner that uses a laser diode as the light source, but its scanning speed, scanning distance, scanning se...

Claims

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Application Information

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IPC IPC(8): G06K7/10
Inventor 张永俊何昌银
Owner 广州优库电子有限公司
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