Intelligent coin authenticity detection device based on pulsed excitation and detection method of device
A technology of intelligent detection and pulse excitation, applied in the direction of coin inspection, processing coins or valuable banknotes, instruments, etc., can solve the problems of high price, increased difficulty in coin identification and screening, and low identification accuracy, so as to improve the detection speed, Improve the detection rate and discrimination, and prevent missed detection
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0046] This embodiment describes a coin authenticity intelligent detection device based on pulse excitation, its overall structure is as follows figure 1 As shown, the principle block diagram is as figure 2 As shown, the coin authenticity intelligent detection device is located at the front end of the coin terminal equipment 1, and the intelligent detection device includes a coin path 7, a multi-frequency eddy current sensor, an excitation circuit 9, a detection circuit 3 and a DSP processing module 2;
[0047] Multi-frequency eddy-current sensors are arranged along coin path 7 both sides, according to coin 6 patterns to be detected, to be detected
[0048] The material of the coin 6 and the change of the thickness of the coin 6 to be detected generate different eddy current signals;
[0049] The excitation circuit 9 is connected with the DSP processing module 2, and the input signal of the excitation circuit 9 is from the DSP
[0050] The TTL control signal output by the p...
Embodiment 2
[0070] The present invention also provides a coin authenticity detection method, which uses the above-mentioned smart coin authenticity detection device based on pulse excitation, and the method continuously collects the output voltage U of the Hall sensor h and compare, when U h When >3V, the voltage signal of the multi-frequency eddy current sensor will be collected after a delay of 5ms, and every 128 sampling data will be regarded as a data set S i ,(i=1,2,…) and find the signal peak value U i ,(i=1,2,…), when U i >U i+1 >U i+2 and U i When <δ, start the feature quantity extraction process;
[0071] For the extraction process of each feature quantity of the reflective eddy current sensor and the transmissive eddy current sensor in the multi-frequency eddy current sensor, the specific steps are:
[0072] 4) Take 128 sampling data as a group, and collect 10 groups of data S sequentially i+2+j ,(j=0,1,…,9) for feature extraction, respectively find S i+2+j The maximum v...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com