CN110657964B - High-voltage circuit breaker mechanical performance detection system and method based on ubiquitous power Internet of things - Google Patents
High-voltage circuit breaker mechanical performance detection system and method based on ubiquitous power Internet of things Download PDFInfo
- Publication number
- CN110657964B CN110657964B CN201910827808.XA CN201910827808A CN110657964B CN 110657964 B CN110657964 B CN 110657964B CN 201910827808 A CN201910827808 A CN 201910827808A CN 110657964 B CN110657964 B CN 110657964B
- Authority
- CN
- China
- Prior art keywords
- vibration
- light path
- circuit breaker
- path unit
- light
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3271—Testing of circuit interrupters, switches or circuit-breakers of high voltage or medium voltage devices
- G01R31/3272—Apparatus, systems or circuits therefor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3271—Testing of circuit interrupters, switches or circuit-breakers of high voltage or medium voltage devices
- G01R31/3272—Apparatus, systems or circuits therefor
- G01R31/3274—Details related to measuring, e.g. sensing, displaying or computing; Measuring of variables related to the contact pieces, e.g. wear, position or resistance
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3271—Testing of circuit interrupters, switches or circuit-breakers of high voltage or medium voltage devices
- G01R31/3275—Fault detection or status indication
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
- H04L67/025—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP] for remote control or remote monitoring of applications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/06—Protocols specially adapted for file transfer, e.g. file transfer protocol [FTP]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/80—Camera processing pipelines; Components thereof
Abstract
The invention discloses a system and a method for detecting mechanical performance of a high-voltage circuit breaker based on the ubiquitous power Internet of things, wherein the system comprises a server and a local end, and the local end comprises: the light path unit is used for emitting emergent light which is interfered with each other to a target position; the image acquisition unit is used for shooting an image of a target position; the control unit is connected with the light path unit and the image acquisition unit and uploads the local data to the server; the measuring frame bears the light path unit, the image acquisition unit and the control unit, and enables the light path unit and the emergent angle or incident angle of the image acquisition unit to form a certain angle; the fixed frame is connected with the measuring frame through a rotating shaft; wherein the server calculates the mechanical performance parameters from the obtained data. The substantial effects of the invention include: simple structure, the detection mode is convenient, and the result is accurate, and is not fragile, long service life, make full use of ubiquitous electric power thing networking's construction achievement, reduce local information's the processing degree of difficulty.
Description
Technical Field
The invention relates to the field of high-voltage circuit breaker performance detection, in particular to a high-voltage circuit breaker mechanical performance detection system and method based on ubiquitous power Internet of things.
Background
Circuit breakers are important devices in high voltage networks, mainly functioning as control and protection devices. With the increase of the service time, certain parts of the circuit breaker can be continuously aged or damaged, such as the abrasion of a mechanical mechanism, the abrasion of a contact, the failure of a secondary opening and closing mechanism and the like. These problems can cause the circuit breaker to malfunction and even affect the safe operation of the entire grid. Therefore, it is important to periodically check the performance of the circuit breaker and detect the operating state thereof. But there are more problems in present high voltage circuit breaker detection mode.
The utility model provides a vacuum circuit breaker mechanical properties on-line monitoring system, including microprocessor, circuit breaker divide-shut brake position detecting element and circuit breaker mechanical properties detecting element, circuit breaker divide-shut brake position detecting element detects divide-shut brake switching signal and transmits to microprocessor, circuit breaker mechanical properties detecting element detects circuit breaker actuating signal and transmits to microprocessor.
The prior art has complex detection mode and poor accuracy.
Disclosure of Invention
Aiming at the problems of complex detection mode and poor accuracy in the prior art, the invention provides a high-voltage circuit breaker mechanical performance detection system and method based on the ubiquitous power Internet of things.
The technical scheme of the invention is as follows.
The utility model provides a high voltage circuit breaker mechanical properties detecting system based on ubiquitous electric power thing networking, includes server and local end, and local end includes: the light path unit is used for emitting emergent light which is interfered with each other to a target position; the image acquisition unit is used for shooting an image of a target position; the control unit is connected with the light path unit and the image acquisition unit and uploads the local data to the server; the measuring frame bears the light path unit, the image acquisition unit and the control unit, and enables the light path unit and the emergent angle or incident angle of the image acquisition unit to form a certain angle; the fixed frame is connected with the measuring frame through a rotating shaft; wherein the server calculates the mechanical performance parameters from the obtained data. After the emergent light is emitted to a target position by the light path unit, the image acquisition unit continuously acquires images, strong vibration can be generated during switching on and switching off, the distance from the imaging plane to the emergent point can influence the width of interference fringes, so the vibration can cause the change of the images, mechanical parameters such as vibration frequency and amplitude of the circuit breaker can be obtained by processing the images, and in addition, the system is not in direct contact with the circuit breaker, the measurement process is simple and convenient, the error is small, and the equipment is not easy to damage. Communication between server and the local makes full use of the construction achievement of ubiquitous electric power thing networking, reduces the local calculation and handles the degree of difficulty.
Preferably, the image acquisition unit comprises two acquisition ends, and the two acquisition ends are positioned at two sides of the optical path unit. Aiming at a plane to be measured, the vibration measuring effect of the plane perpendicular to the plane is obvious, and the vibration parallel to the plane cannot be effectively detected, so that a certain angle is formed between the light path unit and the emergent or incident angle of the image acquisition unit, light emitted by the light path unit needs to relate to at least two planes simultaneously during use, and the image acquisition unit at the corresponding angle acquires images independently, so that the vibration in multiple directions is obtained, the measuring process is perfected, and the accuracy is improved.
Preferably, the optical path unit includes: a light source generating an initial light; a lens to increase an initial light coverage area; the double slit plate makes the initial light pass through two slits and then become two beams of emergent light which are mutually interfered. The light source generally selects a laser, and images on the plane of the surface of the circuit breaker by using the interference principle so as to be used as a reference for image processing.
Preferably, the measuring rack is L-shaped, and the exit angle of the optical path unit and the incident angle of the collecting end form an angle of 45 degrees. Because the most common three-dimensional coordinates are perpendicular to each other, the design enables the two acquisition ends to form an angle of 90 degrees, and the vibration of two perpendicular planes can be measured at each time, and the vibration in each direction in the three-dimensional coordinates can be covered through at least two times of measurement.
Preferably, the acquisition end is a high-speed camera. High speed cameras are an ideal choice because of the speed and clarity requirements of acquisition.
Preferably, the fixing frame is a vertical support or a barrel-shaped hoop, one side of the barrel-shaped hoop is connected with the measuring frame through a rotating shaft, and the other side of the barrel-shaped hoop is used for adjusting the tightness of the barrel-shaped hoop through screws. The vertical support is used for being placed on the ground during ground operation, and the bucket-shaped hoop is used for being used during measurement near a telegraph pole and the like.
Preferably, the bucket-shaped hoop consists of a plurality of movable joints, and each movable joint is connected with each other in the vertical direction. This design can increase structural strength.
A method for detecting mechanical properties of a high-voltage circuit breaker based on a ubiquitous power Internet of things is used for the system for detecting the mechanical properties of the high-voltage circuit breaker based on the ubiquitous power Internet of things, and comprises the following steps:
s01: two adjacent planes which form a certain angle with each other on the high-voltage circuit breaker are searched, and the intersection point of the two planes is taken as a target position.
S02: and irradiating the target position by using the light path unit to perform switching-on and switching-off operation, wherein the image acquisition unit is used for acquiring light spot images on two planes respectively.
S03: and calculating mechanical performance parameters by using the data of the light path unit and the image acquisition unit.
S04: repeating the steps S01 to S03 for several times according to the detection requirement to measure the vibration condition of the qualified plane on different positions.
Generally, two planes which are perpendicular to each other are selected for detection, and the accuracy can be improved through multiple detections.
Preferably, in step S03, the calculation process includes: when the breaker vibrates in the opening and closing processes, the distance between the plane and the light path unit changes, so that the light spot image changes, and the light spot image is recorded as vibration after every positive and negative change, so that a vibration frequency curve is fitted; obtaining the time for opening and closing according to the time point for issuing the opening and closing instruction and starting vibration; and calculating the vibration amplitude according to the change amplitude of the light spot image.
Wherein the vibration amplitude calculation involves the following formula:
in the above formula, δ is the optical path difference, D is the distance from the slit to the imaging plane, x is the distance from the center of any bright stripe to the center of the central bright stripe on the imaging plane, D is the distance between two slits, λ is the wavelength of the light source, and n represents the order number, which is an integer, wherein the imaging plane is parallel to the plane of the slit; with a certain level of bright lines as the standard, the distance D from the slit to the imaging surface changes when the breaker vibrates, and D, n and lambda are not changed, so that x changes. Because in this technical scheme, the plane that the slit belongs to is not parallel with the actual imaging plane, therefore need set for ideal imaging plane, ideal imaging plane passes the bright line center of choosing and is on a parallel with the plane that the slit belongs to, again according to two image formation face actual angles and combine trigonometric function, convert between ideal imaging plane and the actual imaging plane, obtain the displacement amplitude that corresponds the imaging plane, vibration amplitude promptly, do not describe here any more.
Preferably, the another calculation process of step S03 includes: splicing two light spot images acquired at the same time, marking as primary vibration after the center of the central bright line shifts once on both sides of the target position, and fitting a vibration frequency curve; obtaining the time for opening and closing according to the time point for issuing the opening and closing instruction and starting vibration; the vibration amplitude is calculated from the amplitude of the movement of the center of the central bright line.
When the vibration direction has a component in the direction parallel to the plane of the slit, the center of the central bright line has a displacement relative to the target position, and similarly, the vibration amplitude of the displacement in the component direction can be easily obtained according to the included angle and the trigonometric function.
The substantial effects of the invention include: simple structure, the detection mode is convenient, and the result is accurate, and is not fragile, long service life, make full use of ubiquitous electric power thing networking's construction achievement, reduce local information's the processing degree of difficulty.
Drawings
FIG. 1 is a schematic diagram of a first embodiment of the present invention;
FIG. 2 is a schematic view of a second embodiment of the present invention;
fig. 3 is a schematic view of a barrel-shaped hoop according to a second embodiment of the present invention;
FIG. 4 is a schematic diagram of an optical path unit according to an embodiment of the present invention;
the figure includes: 1-circuit breaker, 2-measuring stand, 3-vertical support, 4-light path unit, 5-collection end, 6-rotating shaft, 7-barrel-shaped hoop, 8-movable joint, 41-light source, 42-lens and 43-double slit plate.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. In addition, numerous specific details are set forth below in order to provide a better understanding of the present invention. It will be understood by those skilled in the art that the present invention may be practiced without some of these specific details. In some instances, methods, means, elements and circuits that are well known to those skilled in the art have not been described in detail so as not to obscure the present invention.
The first embodiment is as follows:
as shown in fig. 1, a system for detecting mechanical properties of a high-voltage circuit breaker 1 based on the internet of things of ubiquitous power includes a server and a local terminal; the local end comprises: a light path unit 4 for emitting mutually interfered emergent light to a target position; the image acquisition unit is used for shooting an image of a target position; the control unit is connected with the light path unit 4 and the image acquisition unit and uploads the local data to the server; the measuring frame 2 bears the light path unit 4, the image acquisition unit and the control unit, and the light path unit 4 and the emergent angle or incident angle of the image acquisition unit form a certain angle; the vertical support 3 is connected with the measuring frame 2 through a rotating shaft 6; wherein the server calculates the mechanical performance parameters from the obtained data.
Wherein measuring rack 2 is L shape, and light path unit 4 sets up the right angle inboard at measuring rack 2, and light path unit 4's emergence angle and measuring rack 2's both arms become 45 degrees, and the image acquisition unit includes two collection ends 5, and two collection ends 5 are located two walls, and collection end 5 incident angle and light path unit 4 emergence angle all become 45 degrees. The acquisition end 5 is a high-speed camera. High speed cameras are an ideal choice because of the speed and clarity requirements of acquisition.
As shown in fig. 4, the optical path unit 4 includes: a light source 41 generating a primary light; a lens 42 to increase the initial light coverage area; the double slit plate 43 makes the initial light pass through the two slits and then become two mutually interfered emergent lights. The light source 41 is a laser, and images are formed on the plane of the surface of the circuit breaker 1 by using the interference principle to serve as reference information for image processing.
After the light path unit 4 emits the emergent light to the target position, the image acquisition unit continuously acquires images, strong vibration can be generated during opening and closing, the distance from the imaging plane to the emergent point can influence the width of the interference fringes, so the vibration can cause the change of the images, mechanical parameters such as the vibration frequency and amplitude of the circuit breaker 1 can be obtained by processing the images, and in addition, the system is not in direct contact with the circuit breaker 1, the measurement process is simple and convenient, the error is small, and the equipment is not easy to damage. Communication between server and the local makes full use of the construction achievement of ubiquitous electric power thing networking, reduces the local calculation and handles the degree of difficulty.
Aiming at a plane to be measured, the vibration measuring effect of the plane perpendicular to the plane is obvious, and the vibration parallel to the plane cannot be effectively detected, so that the light path unit 4 and the emergent angle or the incident angle of the image acquisition unit form a certain angle, light emitted by the light path unit 4 needs to be related to at least two planes simultaneously during use, and the image acquisition unit with the corresponding angle acquires images independently, so that the vibration in multiple directions is obtained, the measuring process is perfected, and the accuracy is improved.
Since the most common three-dimensional coordinates are perpendicular to each other, the design makes the two acquisition ends 5 at 90 degrees, and the vibration of two perpendicular planes can be measured at a time, and the vibration in each direction in the three-dimensional coordinates can be covered after at least two measurements.
The embodiment further includes a method for detecting the mechanical performance of the high-voltage circuit breaker 1 based on the ubiquitous power internet of things, which is used for the system for detecting the mechanical performance of the high-voltage circuit breaker 1 based on the ubiquitous power internet of things, and the method includes the following steps:
s01: two adjacent planes which are 90 degrees away from each other on the high-voltage circuit breaker 1 are searched, and the intersection point of the two planes is taken as a target position.
S02: and (3) irradiating the target position by using the optical path unit 4, performing switching-on and switching-off operation, and respectively acquiring light spot images on two planes by using the image acquisition unit.
S03: and calculating mechanical performance parameters by using the data of the light path unit 4 and the image acquisition unit.
S04: repeating the steps S01 to S03 for several times according to the detection requirement to measure the vibration condition of the qualified plane on different positions.
In step S03, the calculation process includes: when the breaker 1 vibrates in the opening and closing processes, the distance between the plane and the light path unit 4 changes to cause the change of a light spot image, and the change of every positive and negative times is recorded as one vibration to fit a vibration frequency curve; obtaining the time for opening and closing according to the time point for issuing the opening and closing instruction and starting vibration; and calculating the vibration amplitude according to the change amplitude of the light spot image.
Wherein the vibration amplitude calculation involves the following formula:
in the above formula, δ is the optical path difference, D is the distance from the slit to the image plane, x is the distance from the center of any bright stripe to the center of the central bright stripe on the image plane, D is the distance between two slits, λ is the wavelength of the light source 41, and n represents the number of stages, which is an integer, wherein the image plane is parallel to the plane of the slit; with a certain level of bright lines as a standard, when the breaker 1 vibrates, the distance D from the slit to the imaging surface changes, and D, n and lambda are not changed, so that x changes. In the technical scheme, the plane where the slit is located is not parallel to the actual imaging plane, so an ideal imaging plane needs to be set, passes through the center of the selected bright stripe and is parallel to the plane where the slit is located, and then the ideal imaging plane and the actual imaging plane are converted according to the actual angles of the two imaging planes and by combining a trigonometric function, so that the displacement amplitude, namely the vibration amplitude of the corresponding imaging plane is obtained.
Taking FIG. 4 as an example, D1+ D2 are equivalentIn the formula D, x is the distance from the center of any bright stripe to the center of the central bright stripe on the ideal image plane, and D is the distance between two slits. That is, the actual imaging surface is the plane irradiated on the circuit breaker 1, the ideal imaging surface is the plane passing through the center of the selected bright line and perpendicular to the initial light emitting direction, and since the measuring frame 2 of this embodiment is 90 degrees, the included angle of the selected target plane is also 90 degrees, at this moment, the actual imaging surface and the ideal imaging surface form 45 degrees, and therefore the bright line interval in the collected light spot image is 45 degrees
Thus, when n is selected and d and λ are not changed, the method can be used
Alternative to x, known from variations in the spot image
To calculate the change in D, i.e. the amplitude in that direction, the subsequent calculation process does not require any creative effort and is not expanded in detail.
Another calculation process of step S03 includes: splicing two light spot images acquired at the same time, marking as primary vibration after the center of the central bright line shifts once on both sides of the target position, and fitting a vibration frequency curve; obtaining the time for opening and closing according to the time point for issuing the opening and closing instruction and starting vibration; the vibration amplitude is calculated from the amplitude of the movement of the center of the central bright line.
When the vibration direction has a component in the direction parallel to the plane of the slit, the center of the central bright line has a displacement relative to the target position, and similarly, the vibration amplitude of the displacement in the component direction can be easily obtained according to the included angle and the trigonometric function. The calculation process is not described in detail.
Example two:
as shown in fig. 2, the present embodiment is substantially the same as the first embodiment, except that the fixing frame is a barrel-shaped hoop 7, one side of the barrel-shaped hoop 7 is connected to the measuring frame 2 through a rotating shaft 6, and the other side of the barrel-shaped hoop 7 is adjusted by a screw. Wherein the vertical support 3 is intended to be placed on the ground during ground operations and the bucket-shaped hoop 7 is intended to be used during measurements near the utility pole or the like.
As shown in fig. 3, the bucket-shaped hoop is composed of a plurality of movable joints 8, and each movable joint 8 is connected with each other in the vertical direction. This design can increase structural strength.
The beneficial effects of this embodiment are not described in detail.
Through the description of the above embodiments, those skilled in the art will understand that, for convenience and simplicity of description, only the division of the above functional modules is used as an example, and in practical applications, the above function distribution may be completed by different functional modules according to needs, that is, the internal structure of a specific device is divided into different functional modules to complete all or part of the above described functions.
In the embodiments provided in this application, it should be understood that the disclosed structures and methods may be implemented in other ways. For example, the above-described embodiments with respect to structures are merely illustrative, and for example, a module or a unit may be divided into only one logic function, and may have another division manner in actual implementation, for example, a plurality of units or components may be combined or may be integrated into another structure, or some features may be omitted or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, structures or units, and may be in an electrical, mechanical or other form.
Units described as separate parts may or may not be physically separate, and parts displayed as units may be one physical unit or a plurality of physical units, may be located in one place, or may be distributed to a plurality of different places. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a readable storage medium. Based on such understanding, the technical solutions of the embodiments of the present application may be essentially or partially contributed to by the prior art, or all or part of the technical solutions may be embodied in the form of a software product, where the software product is stored in a storage medium and includes several instructions to enable a device (which may be a single chip, a chip, or the like) or a processor (processor) to execute all or part of the steps of the methods of the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (6)
1. The utility model provides a high voltage circuit breaker mechanical properties detecting system based on ubiquitous electric power thing networking, includes server and local end, its characterized in that, and local end includes:
the light path unit is used for emitting emergent light which is interfered with each other to a target position;
the image acquisition unit is used for shooting an image of a target position;
the control unit is connected with the light path unit and the image acquisition unit and uploads the local data to the server;
the measuring frame bears the light path unit, the image acquisition unit and the control unit, and enables the light path unit and the emergent angle or incident angle of the image acquisition unit to form a certain angle;
the fixed frame is connected with the measuring frame through a rotating shaft;
wherein the server calculates mechanical performance parameters from the obtained data;
the image acquisition unit comprises two acquisition ends, and the two acquisition ends are positioned at two sides of the light path unit;
the measuring frame is L-shaped, and the emergent angle of the light path unit and the incident angle of the collecting end form a 45-degree angle;
the method for detecting the mechanical performance of the high-voltage circuit breaker of the system comprises the following steps:
s01: two adjacent planes which form a certain angle with each other on the high-voltage circuit breaker are searched, and the intersection point of the two planes is taken as a target position;
s02: irradiating a target position by using a light path unit, performing switching-on and switching-off operation, and respectively acquiring light spot images on two planes by using an image acquisition unit;
s03: calculating mechanical performance parameters by using data of the light path unit and the image acquisition unit;
s04: repeating the steps S01 to S03 for a plurality of times according to the detection requirement so as to measure the vibration condition of the plane meeting the conditions at different positions;
one calculation procedure in the step S03 includes:
when the breaker vibrates in the opening and closing processes, the distance between the plane and the light path unit changes, so that the light spot image changes, and the light spot image is recorded as vibration after every positive and negative change, so that a vibration frequency curve is fitted; obtaining the time for opening and closing according to the time point for issuing the opening and closing instruction and starting vibration; calculating the vibration amplitude according to the change amplitude of the light spot image;
the other calculation process of step S03 includes:
splicing two light spot images acquired at the same time, marking as primary vibration after the center of the central bright line shifts once on both sides of the target position, and fitting a vibration frequency curve; obtaining the time for opening and closing according to the time point for issuing the opening and closing instruction and starting vibration; the vibration amplitude is calculated from the amplitude of the movement of the center of the central bright line.
2. The system for detecting the mechanical property of the high-voltage circuit breaker based on the ubiquitous power internet of things according to claim 1, wherein the light path unit comprises:
a light source generating an initial light;
a lens to increase an initial light coverage area;
the double slit plate makes the initial light pass through two slits and then become two beams of emergent light which are mutually interfered.
3. The system for detecting the mechanical property of the high-voltage circuit breaker based on the Internet of things of ubiquitous power according to claim 1, wherein the acquisition end is a high-speed camera.
4. The system for detecting the mechanical property of the high-voltage circuit breaker based on the Internet of things of ubiquitous electric power of claim 1, wherein the fixing frame is a vertical support or a barrel-shaped hoop, one side of the barrel-shaped hoop is connected with the measuring frame through a rotating shaft, and the tightness of the barrel-shaped hoop is adjusted through a screw on the other side of the barrel-shaped hoop.
5. The system for detecting the mechanical property of the high-voltage circuit breaker based on the ubiquitous power internet of things is characterized in that the bucket-shaped hoop is composed of a plurality of movable joints, and each movable joint is connected with each other in the vertical direction.
6. The method for detecting the mechanical property of the high-voltage circuit breaker based on the ubiquitous power Internet of things is used for the system for detecting the mechanical property of the high-voltage circuit breaker based on the ubiquitous power Internet of things as claimed in claim 1, and is characterized by comprising the following steps of:
s01: two adjacent planes which form a certain angle with each other on the high-voltage circuit breaker are searched, and the intersection point of the two planes is taken as a target position;
s02: irradiating a target position by using a light path unit, performing switching-on and switching-off operation, and respectively acquiring light spot images on two planes by using an image acquisition unit;
s03: calculating mechanical performance parameters by using data of the light path unit and the image acquisition unit;
s04: repeating the steps S01 to S03 for a plurality of times according to the detection requirement so as to measure the vibration condition of the plane meeting the conditions at different positions;
one calculation procedure in the step S03 includes:
when the breaker vibrates in the opening and closing processes, the distance between the plane and the light path unit changes, so that the light spot image changes, and the light spot image is recorded as vibration after every positive and negative change, so that a vibration frequency curve is fitted; obtaining the time for opening and closing according to the time point for issuing the opening and closing instruction and starting vibration; calculating the vibration amplitude according to the change amplitude of the light spot image;
the other calculation process of step S03 includes:
splicing two light spot images acquired at the same time, marking as primary vibration after the center of the central bright line shifts once on both sides of the target position, and fitting a vibration frequency curve; obtaining the time for opening and closing according to the time point for issuing the opening and closing instruction and starting vibration; the vibration amplitude is calculated from the amplitude of the movement of the center of the central bright line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910827808.XA CN110657964B (en) | 2019-09-03 | 2019-09-03 | High-voltage circuit breaker mechanical performance detection system and method based on ubiquitous power Internet of things |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910827808.XA CN110657964B (en) | 2019-09-03 | 2019-09-03 | High-voltage circuit breaker mechanical performance detection system and method based on ubiquitous power Internet of things |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110657964A CN110657964A (en) | 2020-01-07 |
| CN110657964B true CN110657964B (en) | 2021-10-29 |
Family
ID=69037814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910827808.XA Active CN110657964B (en) | 2019-09-03 | 2019-09-03 | High-voltage circuit breaker mechanical performance detection system and method based on ubiquitous power Internet of things |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110657964B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111855176B (en) * | 2020-07-20 | 2022-08-12 | 闽江学院 | Internet of things high-voltage circuit breaker mechanical performance rapid detection device and working method thereof |
| CN113567845A (en) * | 2021-06-11 | 2021-10-29 | 国网浙江省电力有限公司嘉兴供电公司 | High-voltage circuit breaker life cycle intelligent evaluation method based on deep belief network |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10170334A (en) * | 1996-12-12 | 1998-06-26 | Nikon Corp | Vibration measuring instrument |
| CN1614438A (en) * | 2004-10-22 | 2005-05-11 | 哈尔滨工业大学 | Testing method for dynamic characterist ics of electromagnetic relay |
| CN1749723A (en) * | 2005-10-21 | 2006-03-22 | 中国科学院上海光学精密机械研究所 | The accurate detecting method of random vibration of isolation mounting |
| CN1971205A (en) * | 2006-12-08 | 2007-05-30 | 华中科技大学 | Portable reverse measuring system for area-structure light |
| CN101881600A (en) * | 2009-05-07 | 2010-11-10 | 财团法人工业技术研究院 | Interference vibration displacement determining method, vibration frequency determining method and interference device |
| CN202793771U (en) * | 2012-08-27 | 2013-03-13 | 武汉义天科技有限公司 | Breaker testing system applying high-speed charge coupled device (CCD) image-forming principle |
| CN104316873A (en) * | 2014-11-13 | 2015-01-28 | 云南电网公司电力科学研究院 | Circuit breaker and mechanism status four-in-one recognition system |
| CN106768987A (en) * | 2017-02-28 | 2017-05-31 | 广西电网有限责任公司桂林供电局 | The multi-target tracking method of the breaker test system being imaged with high-speed cmos |
| CN110071579A (en) * | 2019-06-05 | 2019-07-30 | 国网北京市电力公司 | Power grid power supply based on ubiquitous electric power Internet of Things ensures and intelligent managing and control system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4897572B2 (en) * | 2006-06-30 | 2012-03-14 | 株式会社ミツトヨ | Oblique incidence interferometer |
-
2019
- 2019-09-03 CN CN201910827808.XA patent/CN110657964B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10170334A (en) * | 1996-12-12 | 1998-06-26 | Nikon Corp | Vibration measuring instrument |
| CN1614438A (en) * | 2004-10-22 | 2005-05-11 | 哈尔滨工业大学 | Testing method for dynamic characterist ics of electromagnetic relay |
| CN1749723A (en) * | 2005-10-21 | 2006-03-22 | 中国科学院上海光学精密机械研究所 | The accurate detecting method of random vibration of isolation mounting |
| CN1971205A (en) * | 2006-12-08 | 2007-05-30 | 华中科技大学 | Portable reverse measuring system for area-structure light |
| CN101881600A (en) * | 2009-05-07 | 2010-11-10 | 财团法人工业技术研究院 | Interference vibration displacement determining method, vibration frequency determining method and interference device |
| CN202793771U (en) * | 2012-08-27 | 2013-03-13 | 武汉义天科技有限公司 | Breaker testing system applying high-speed charge coupled device (CCD) image-forming principle |
| CN104316873A (en) * | 2014-11-13 | 2015-01-28 | 云南电网公司电力科学研究院 | Circuit breaker and mechanism status four-in-one recognition system |
| CN106768987A (en) * | 2017-02-28 | 2017-05-31 | 广西电网有限责任公司桂林供电局 | The multi-target tracking method of the breaker test system being imaged with high-speed cmos |
| CN110071579A (en) * | 2019-06-05 | 2019-07-30 | 国网北京市电力公司 | Power grid power supply based on ubiquitous electric power Internet of Things ensures and intelligent managing and control system |
Non-Patent Citations (1)
| Title |
|---|
| "基于干涉条纹移动量的非接触振动测量研究";王运付 等;《光电工程》;20121130;第39卷(第11期);17-23 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110657964A (en) | 2020-01-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110657964B (en) | High-voltage circuit breaker mechanical performance detection system and method based on ubiquitous power Internet of things | |
| CN102798377B (en) | Planar error measurement analysis system and method | |
| CN103308149A (en) | Machine vision synchronous focusing scanning type laser vibration measuring device | |
| CN111412832B (en) | Semiconductor laser six-degree-of-freedom error measurement system based on interferometer module | |
| CN105444679B (en) | It can inhibit the inclined symmetrical laser displacement sensor of laser drift and surface | |
| CN103063415B (en) | A kind of long focus length of lens measuring method based on Moire fringe coupling | |
| CN107091619A (en) | The angular deflection detecting system of thrombelastogram instrument | |
| CN204902786U (en) | Can reduce three -dimensional measurement system of measured object surface reflection of light | |
| CN102901467A (en) | Device for correcting parallelism degree of laser emission optical axis and capturing and tracking visual axis | |
| WO2018045735A1 (en) | Apparatus used for laser-measurement signal correction | |
| CN105136059A (en) | Three-dimensional measuring system capable of reducing light reflection on surface of measured object | |
| CN102980534B (en) | The non-contact measurement method of a kind of hidden rotating shaft and end face squareness and system | |
| CN110703074A (en) | High-voltage circuit breaker comprehensive detection system and method based on ubiquitous power Internet of things | |
| CN108279068A (en) | Laser beam quality dynamic measurement device based on four wave lateral shearing interferences | |
| CN113465722B (en) | Low-cost vibration measurement system and vibration measurement method | |
| CN109029744B (en) | A kind of detection method of vortex beams topological charge number | |
| CN103148935A (en) | Industrial laser beam parameter measuring device | |
| CN207487813U (en) | A kind of sound and image acquiring device based on wireless laser technology | |
| CN114252028A (en) | Compact four-light-spot two-dimensional corner detection device combined with laser triangulation method | |
| CN107966279B (en) | Multi-view-field wavefront measuring device and method for telescope system | |
| CN104635756A (en) | Measuring method and unit of tracking angle deviation of solar tracker | |
| CN102589702A (en) | Interference imaging spectrometer for fresnel double sided mirror | |
| CN115824170A (en) | Method for measuring ocean waves by combining photogrammetry and laser radar | |
| CN103557835A (en) | Laser ranging device and method | |
| JP2000121318A5 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |