Method and system for determining state of air switch
A technology of air switch and state, which is applied in the direction of electric switch, electrical components, character and pattern recognition, etc., can solve the problems of difficult to adapt to different brands of air switches and complex structure of the device, so as to improve efficiency and reduce error rate Effect
Pending Publication Date: 2020-10-02
福建省海峡智汇科技有限公司
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Problems solved by technology
[0006] In order to solve the technical problem that the state detection device of the air switch in the prior art has a complex structure and is difficult to adapt to air switches of different brands and models, the present invention proposes a method and system for judging the state of the air switch to solve the above-mentioned problems. problem
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[0031] The application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain related inventions, rather than to limit the invention. It should also be noted that, for the convenience of description, only the parts related to the related invention are shown in the drawings.
[0032] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and embodiments.
[0033] According to a method for judging the state of an air switch according to an embodiment of the present invention, figure 1 A flow chart of a method for judging the state of an air switch according to an embodiment of the present invention is shown. Such as figure 1 ...
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The invention provides a method and system for judging the state of an air switch, and the method comprises the steps: obtaining a picture containing the state information of a to-be-judged air switch, carrying out the preprocessing of the picture, and obtaining the position of a switching-off position of the air switch, and the preprocessing comprises the binaryzation of the picture; interceptingan area of a switching-off part of the air switch by utilizing the maximum communication area of opencv, and equally dividing the area up and down; based on the area ratio of the switching-off part in the upper and lower areas, obtaining the area where switching-off is located, and judging the state of the air switch accordingly. The state of the air switch is judged through the image recognitiontechnology, compared with manual judgment, the judgment is more accurate and faster, the error rate of manual detection is reduced, and auxiliary contacts do not need to be installed in advance.
Description
technical field [0001] The invention relates to the technical field of electric equipment, in particular to a method and system for judging the state of an air switch. Background technique [0002] Air switch, also known as air circuit breaker, is a kind of circuit breaker. It is a switch that will automatically disconnect as long as the current in the circuit exceeds the rated current. The air switch is a very important electrical appliance in the low-voltage power distribution network and electric drive system. It integrates control and multiple protection functions. In addition to completing the contact and breaking of the circuit, it can also protect the short circuit, severe overload and undervoltage of the circuit or electrical equipment, and can also be used to start the motor infrequently. As a kind of auxiliary equipment, the air switch is not only used in a large number in substations, but also related to the normal operation of protection devices and communicati...
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Login to View More IPC IPC(8): G06K9/00G06K9/32G06K9/34G06K9/62H01H9/16
CPCH01H9/16G06V20/52G06V10/25G06V10/267G06F18/22
Inventor 罗伟华陈旭李密颜茂春陈嘉华陈佳期
Owner 福建省海峡智汇科技有限公司