An exclusion infrared counting device
Patent Information
- Authority / Receiving Office
- CN ยท China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- XUZHOU NORMAL UNIVERSITY
- Publication Date
- 2019-02-22
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Abstract
Description
technical field
[0001] The invention relates to an infrared detection device, in particular to an exclusion type infrared counting device. Background technique
[0002] Infrared counters are widely used in the research of counting the flow of discontinuous objects, but most of the existing infrared counters cannot distinguish the flow direction of objects. As long as an object passes through the infrared detection area, the counter will be triggered to count. In practical applications, it is often necessary to obtain the one-way flow of a certain object for research, so it is necessary to exclude the reverse moving object. Chinese invention patents CN201210174190 and CN201510354813 respectively disclose an infrared counting device for one-way counting of objects. The time difference of the infrared counter to distinguish between forward moving objects and reverse moving objects. However, this exclusion method is only applicable to the situation where the distance between t...