Portable test paper counting device and method based on single-photon detector

Abstract

The invention relates to a test paper counting technology, in particular to a portable test paper counting device and method based on a single-photon detector. The problems of time and labor waste andlow counting accuracy of manual test paper counting are solved. The portable test paper counting device based on the single-photon detector comprises a box-shaped shell, two guide rail pairs, two hanging rods, a laser device, a reflecting mirror, the single-photon detector, a power supply and a PC; a rectangular operation hole which is through in a left-right direction is formed in the lower edgeof the right side wall of the box-shaped shell; and the lower hole wall of the rectangular operation hole is connected with the inner bottom wall of the box-shaped shell; an up-down through assemblyhole is formed in the right part of the bottom wall of the box-shaped shell; a wire passing hole which is through in a left-right direction is formed in the left side wall of the box-shaped shell; theguide rail of the first guide rail pair is fixed at the left part of the inner top wall of the box-shaped shell along the longitudinal direction; the guide rail of the second guide rail pair is fixedat the right part of the inner top wall of the box-shaped shell along the longitudinal direction; and the sliding blocks of the two guide rail pairs face downwards. The device is suitable for schools, examination institutions and the like.

Description

technical field [0001] The invention relates to examination paper counting technology, in particular to a portable test paper counting device and method based on a single photon detector. Background technique [0002] In recent years, with the continuous progress of society, more and more talents are needed, and there are more and more various examinations. In the examination process, examination paper inventory is an essential link. At present, the counting of test papers is generally carried out manually. Practice has shown that manual counting of test papers is not only time-consuming and laborious, but also has a low counting accuracy. Based on this, it is necessary to invent a portable test paper counting device and method based on a single photon detector to solve the problems of time-consuming and labor-intensive manual counting of test papers and low counting accuracy. Contents of the invention [0003] In order to solve the problems of time-consuming and labor-...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems of time-consuming and labor-intensive manual counting of test papers and low counting accuracy, the present invention provides a portable test paper counting device and method based on a single photon detector

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