Automatic recognition method of indicating value of pointer instrument based on Internet of Things and machine vision
A machine vision and automatic recognition technology, applied in character and pattern recognition, instruments, biological models, etc., can solve the problems of high labor intensity, large error and low efficiency of manual reading
Active Publication Date: 2016-05-25
HOHAI UNIV CHANGZHOU
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Problems solved by technology
[0005] The purpose of the present invention is to overcome the problems of high labor intensity, low efficiency and large errors in manual reading, and provide a method and device for automatic recognition of pointer instrument indication values based on the Internet of Things and machine vision, which greatly reduces the labor intensity of staff reading , improve the efficiency of reading and effectively ensure the accuracy of reading
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[0078] The present invention will be further described below in conjunction with the drawings and specific implementations.
[0079] Such as figure 1 As shown, a pointer-type instrument based on the Internet of Things and machine vision automatic identification device, including a master station control center, a gateway, and a base station. The base station communicates with the gateway through a GPRS or GSM network; the gateway is connected to the master station control center , Used to convey information.
[0080] The base station has two components:
[0081] Such as figure 2 As shown, the first type includes a pointer meter 1, a wired camera 7, a base station computer 4, and a GPRS wireless terminal 6. The wired camera 7 is located directly in front of the dial of the pointer meter 1. The wired camera 7 and the GPRS wireless terminal 6 are respectively connected to the base station computer 4Communication connection.
[0082] Such as image 3 As shown, the second type includes ...
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The invention discloses a pointer type instrument indicating value automatic identification device and method on the basis of internet of things and machine vision. The device comprises a master station control center, a gateway and a base station, wherein the base station comprises a pointer type instrument dial plate to be measured, a video camera, a computer and a general packet radio service (GPRS) wireless terminal. A clear zero moment pointer type instrument dial plate image is shot by using the video camera and stored in the computer, and relevant parameters are set according to practical situation. Images of the pointer type instrument dial plate to be measured are shot in real time by using the video camera, image processing based on an intelligent optimization algorithm is performed on the shot images, a pointer type instrument indicating value is figured out and sent to the master station control center through the GPRS wireless terminal to replace artificial reading, the defect and the problem that the artificial reading is high in labor intensity, large in error, low in efficiency and the like are overcome and solved, and communication efficiency between the master station control center and the base station is improved.
Description
Technical field [0001] The present invention relates to the field of meter indication value recognition, in particular to a pointer type meter indication value automatic recognition device and method based on the Internet of Things and machine vision. Background technique [0002] At present, my country's electric power, petroleum, chemical and other industries still use a large number of pointer instruments, especially in some special occasions (such as gas stations). The recognition of the indicated value of the pointer type instrument is mainly done manually, and the indicated value is read by manually observing the pointer of the instrument dial. This observation method is easily affected by subjective factors such as human observation angle and observation distance. The error is large and manual The reading is labor-intensive and inefficient. During remote control, due to the low efficiency of information communication between each base station and the master station contro...
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IPC IPC(8): G06K9/00G06N3/00
Inventor 薛云灿张建强杨启文李慧霞
Owner HOHAI UNIV CHANGZHOU