Book defect automatic detection method and detection device

An automatic detection device and automatic detection technology, applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems of high labor intensity, high missed detection and false detection rate, slow inspection speed, etc. The effect of high detection accuracy and increased work efficiency

Inactive Publication Date: 2010-12-29
尚超
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a reasonable and effective automatic detection method and detection device for book defects, which fundamentally solve the problems of slow inspection speed, long time-consuming, high labor intensity, inaccurate inspection, and missed inspection in manual inspection. The problem of high false positive rate

Method used

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  • Book defect automatic detection method and detection device
  • Book defect automatic detection method and detection device
  • Book defect automatic detection method and detection device

Examples

Experimental program
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Effect test

Embodiment 1

[0018] The weighing part is mainly composed of a weighing tray 1, a beam 3 connected to the weighing tray 1 by an elastic connecting piece 16, a magnet 14 below the beam 3, a force coil 15 on the periphery of the magnet 14, and a coil frame 13. The light-emitting diode 4 of the sensor part is fixed on the outside of the bobbin 13, and corresponds to the photodiode 5 of the sensor part through the light barrier 12, and the photodiode 5 is connected to the A / D converter 6, the controller 7, the comparator 8, and the transistor switch 11. , the afterburner coil 15 and the light emitting diode 4 form a closed-loop servo system, and the output end of the comparator 8 is connected with the I / O interface of the computer system 9 . The transistor switch 11 is respectively connected to the output end of the comparator 8 and the force coil 15 to realize electromagnetic force feedback balance. The other end of the ramp generator 10 connected to the computer system 9 is connected to the i...

Embodiment 2

[0023] A strain gauge sensor 17 is arranged below the weighing tray 1 of the weighing part, and the strain gauge sensor 17 is fixed on the fixed bracket 21 at the same time, and the strain gauge sensor 17 is sequentially connected with the signal amplifier 18, the analog filter 19, and the A / D converter 20, The output end of the A / D converter 20 is connected with the I / O interface of the computer system 9 .

[0024] When the detected book is placed on the weighing tray 1, the sinking of the weighing tray causes the deformation of the strain sensor 17, thereby changing its resistance value, and then the measuring circuit converts this resistance change into an electrical signal, thereby completing the The external force is converted into an electrical signal, and finally converted into a digital signal by the A / D converter 20, and the computer system 9 I / O interface receives the signal and performs data processing.

[0025] There are two types of the above-mentioned A / D convers...

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Abstract

The invention relates to a book defect automatic detection method and a detection device, which can fundamentally solve the problems of slow check speed, long time consumption, great labor intensity of labors, inaccuracy of the detection, high omission ratio and high fall-out ratio in manual check. The key points of the technical are as follows: firstly establishing an original database in a computer system for storing original weight value of a book; placing the book on a weighing part of the book defect automatic detection device when the book is returned after being borrowed, leading a sensor part connected with the weighing part to produce an electrical signal, changing the electrical signal to a digital signal via an A/D converter, and finally storing the digital signal into the database through an I/O interface of the computer system; and using the computer system to compare detected weight data before and after borrowing the book and further displaying the defect result of the book. The method and the device have the advantages of novel detection principle, fast detection speed and high precision. The method and the device are applicable to libraries and the like.

Description

technical field [0001] The invention relates to an automatic detection system, in particular to an automatic detection method and detection device for book defects, which are suitable for libraries and the like. Background technique [0002] Libraries are public cultural platforms that provide literature, information, materials and services to the public. The collection of books belongs to the state property, and no one may use any means to steal them as their own. However, the phenomena of tearing up pages, opening skylights, stealing beams and changing columns, etc. still happen from time to time. [0003] In order to solve the above problems, the current library staff can only use the method of manual detection. When returning books, each page must be turned. Generally, each reader can borrow 6 books. Thousands of pages. According to relevant test information, "Head and Neck Oncology" published by Tianjin Science and Technology Press has a format of 787*1092 mm (1 / 16),...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N5/00
Inventor 尚超
Owner 尚超
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