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Licence plate category distinguishing system

A technology for distinguishing systems and license plates, applied in the field of license plate recognition, can solve problems such as the unrecognizable license plate of electric vehicles, and achieve the effect of simple steps

Inactive Publication Date: 2018-03-16
SICHUAN ZHICHUANG SPACE INCUBATOR MANAGEMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this type of license plate recognition technology is all aimed at the recognition of the same license plate template, and for the newly issued new energy license plate (8 digits), because the traditional recognition scheme is set for the 7-digit license plate (92-type motor vehicle license plate) The recognition of the electric vehicle license plate (new energy license plate) is unrecognizable

Method used

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  • Licence plate category distinguishing system
  • Licence plate category distinguishing system
  • Licence plate category distinguishing system

Examples

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Embodiment Construction

[0043] All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and / or steps.

[0044] Any feature disclosed in this specification (including any appended claims, abstract), unless otherwise stated, may be replaced by alternative features that are equivalent or serve a similar purpose. That is, unless expressly stated otherwise, each feature is one example only of a series of equivalent or similar features.

[0045] Such as figure 1 and 5 As shown, this embodiment discloses a system for distinguishing types of license plates 200, including: a light source 100, and sequentially connected: an optical receiver 300, an optical information analyzer 400, and a type discriminator 500; wherein,

[0046] The light source 100 is used to emit projection light to the license plate 200;

[0047] The optical information analyzer 400 is used to analyze the spectral power distribution...

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PUM

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Abstract

The invention discloses a system for distinguishing types of license plates, which comprises: a light source, and also sequentially connected: an optical receiver, an optical information analyzer, and a type discriminator; wherein, the light source is used for emitting projected light to the license plate; the optical information analyzer is used for Analyzing the spectral power distribution of the reflected light; the type discriminator judges the type of the license plate according to the distribution of light waves in each frequency band in the spectral power distribution. Among them, the optical information analyzer includes: a filter circuit and a frequency analysis circuit connected in sequence, and the frequency analysis circuit includes a photosensitive element, a current passing circuit and a power analysis circuit connected in sequence, and further, the circuit acquisition circuit can be acquired directly or indirectly The induction current of the photosensitive original. The system can provide effective support and reference for the selection of license plate recognition scheme, with simple structure, high reliability and good use effect.

Description

technical field [0001] The invention relates to the field of license plate recognition, in particular to a system for distinguishing types of license plates. Background technique [0002] With the substantial increase in the level of the national economy, people's living standards are also increasing. On the one hand, it is obvious that the number of cars in various regions is growing steadily on the basis of a huge base. [0003] With the increase of the number of cars, the management workload and management difficulty of the cars will increase accordingly, and new requirements will be put forward for the management of the license plate number as the identity mark of the car. Among them, the most common one is Recognition of license plates. [0004] In my country, for traditional fossil fuel vehicles, license plates with 7-digit numbers are used, and uniform regulations have been made on the size, distribution, and characters of license plates. In the prior art, multiple ...

Claims

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Application Information

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IPC IPC(8): G01N21/27
CPCG01N21/27
Inventor 孙帝
Owner SICHUAN ZHICHUANG SPACE INCUBATOR MANAGEMENT CO LTD
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