CN111025137A - Open type isolating switch state sensing device - Google Patents
Open type isolating switch state sensing device Download PDFInfo
- Publication number
- CN111025137A CN111025137A CN201911280896.2A CN201911280896A CN111025137A CN 111025137 A CN111025137 A CN 111025137A CN 201911280896 A CN201911280896 A CN 201911280896A CN 111025137 A CN111025137 A CN 111025137A
- Authority
- CN
- China
- Prior art keywords
- open
- isolating switch
- sensing device
- state sensing
- processing unit
- 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.)
- Pending
Links
Images
Classifications
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention relates to an open type isolating switch state sensing device, which is used for identifying the on-off state of an open type isolating switch, and comprises: a depth camera and a processing unit; the depth camera is used for shooting a depth image of the open type isolating switch; the processing unit is connected with the depth camera and used for identifying the on-off state of the open isolating switch based on the depth image and outputting an identification signal containing an identification result. The invention can monitor the open-close state of the open-type isolating switch, and has the advantages of easy implementation, effectiveness, reliability, wide application range, low modification cost, simple operation and maintenance and the like.
Description
Technical Field
The invention belongs to the field of power equipment state monitoring and automatic control, and particularly relates to an open type disconnecting switch state sensing device for realizing remote rapid operation and intelligent operation and maintenance of equipment in a transformer substation.
Background
Switching operation is the most common type of operation in substation operation and maintenance work. With the development of science and technology, the switching operation starts to gradually transit to the 'one-key sequential control' mode. The one-touch control means that substation equipment is remotely controlled by programmed instructions at a remote place. Compared with the traditional field operation mode, remote operation is realized by one-key sequential control, and operation and maintenance personnel do not need to go to and fro between the transformer substations, so that the operation time is short, and the influence on a power grid is small; the programmed control is realized, so that the misoperation risk is small, the operation is simple, and the labor cost is greatly reduced. Therefore, one-key sequential control of switching operation is a development direction of future substations.
The switching operation generally changes the state of the device by opening and closing a circuit breaker and a disconnecting switch (knife switch). For the circuit breaker interval shown in fig. 1, the programmed operation logic is shown in fig. 2, taking the operation of changing the circuit breaker interval from running to cold standby as an example.
It can be seen that after each circuit breaker/disconnector action, it is necessary to confirm whether it is in place. This step is very important because there are cases where the breaker or the disconnector is rejected or is not in place theoretically, and if the next operation is performed without confirmation, serious misoperation accidents such as disconnecting and switching the knife switch with load may occur. In manual switching operations, the confirmation of the state of the circuit breaker and disconnector is usually done visually, whereas in the push-to-control mode this step needs to be done by other means.
For the circuit breaker, because its mechanical part is usually sealed, the operational environment is comparatively stable, and the probability that itself appears refusing action is lower, and because the circuit breaker action is usually along with the change of voltage current, can judge the deciliter state of circuit breaker comparatively easily through the voltage current on the monitoring line.
The isolating switch is divided into an open type (GIS) and a closed type (GIS). The operation of the GIS isolating switch is stable, and the state monitoring can be effectively performed by using a state sensing means, so that the discussion is omitted, and the following discussion is directed to an open isolating switch (if not particularly labeled, the isolating switch in the following text refers to an open isolating switch).
The number of the open-type disconnecting switches in the power grid is very large, the reliability under long-term operation is difficult to guarantee due to the fact that mechanical parts of the open-type disconnecting switches are exposed outside, the probability of the open-type disconnecting switches not being connected in place is relatively high, and the state change of the open-type disconnecting switches is usually not reflected by the voltage and current change of the circuit due to the fact that the open-type disconnecting switches are usually operated in a power-off state, and therefore the state sensing of the open-type disconnecting switches becomes the bottleneck of achieving one-key sequential control of the power.
At present, three methods for sensing the state of the isolating switch are mainly used:
1) auxiliary contact method
The auxiliary contacts on the operating mechanism of the isolating switch are a series of small switches linked with the knife switch contact, and when the knife switch is displaced, the auxiliary contacts are driven to be displaced. The displacement condition of the disconnecting link can be reflected by detecting the opening and closing condition of the auxiliary contact. The method has the advantages of extremely simple realization, no need of adding any auxiliary equipment, realization by directly utilizing the existing device, low cost and no influence on the inherent running state of the equipment.
However, the auxiliary contact method is only an indirect measurement method, and the accuracy of the result cannot be completely guaranteed. The field operation experience shows that the situation that the auxiliary node signal is inconsistent with the actual position of the disconnecting link due to mechanical reasons is common. For example, the auxiliary contacts may already be in the closed state when the contacts of the knife switch cannot be brought into position due to a mechanical failure. At this time, if power is transmitted, the knife switch contact may generate heat due to poor contact, and serious equipment damage or grid accidents may occur.
2) Pressure method
The contacts of the disconnecting switch are usually connected by plugging or pressing, and springs are usually arranged at the joints of the contacts to ensure the reliability of contact. A pressure sensor is arranged on the contact spring, and the opening and closing conditions of the isolating switch can be reflected by detecting the pressure change of the spring. The method has the advantages that the contact reliability of the knife switch contact can be directly monitored from a mechanical angle, and the contact heating problem caused by poor contact is avoided.
However, although the pressure sensor can better reflect whether the contact of the disconnecting switch after closing is reliable, the pressure sensor cannot reflect whether the opening process is in place. If the insulation distance is not enough due to the fact that the opening is not in place, the air gap between the contacts can be broken down, and serious equipment and personal accidents are caused. Meanwhile, the working environments of the pressure sensors installed on the isolating switch are outdoor, and the temperature and humidity difference and other environmental factors are large, so that the measurement result of the pressure sensors is unstable, and the situation of error sensing happens occasionally. In addition, because pressure sensor need install on the contact, need to have a power failure rear to the equipment in service and can reform transform, the transformation cost is higher, and can only adopt the battery power supply at the high-pressure end, has brought very big difficulty for long-term maintenance.
3) Angle method
The disconnecting switch is usually switched on and off by rotating the contact arm, so that an angle sensor can be additionally arranged on a rotating shaft of the contact arm, and the switching-on and switching-off state of the disconnecting link is monitored through the change of the angle of the contact arm. Compared with a pressure method, under an ideal condition, the angle method can not only effectively reflect the closing condition, but also sense whether the opening is in place.
However, the actual opening and closing positions of the disconnecting switches are not necessarily strictly in the 0 ° and 90 ° orientations due to the precision of machining. Even for the same model of equipment, there are still differences between different batches and different individuals. Moreover, under the condition of outdoor long-term operation, the mechanical position accuracy of the disconnecting link is gradually reduced, and certain dispersion exists for the same disconnecting link in different operations, so that great difficulty is brought to judgment of the angle sensor, and particularly, misjudgment is possible for judgment of switching-on reliability. In addition, due to the limitation of the installation position, the angle sensor also has the problems of high installation and maintenance cost, difficult power supply and the like.
The on-off state perception of the isolating switch essentially solves two basic problems: 1) whether the switch is in place can be effectively judged, and heating of the disconnecting link caused by poor contact of the contact in the operation process is avoided; 2) whether the opening is in place can be effectively judged, and the phenomenon that the air gap of the isolating switch is broken down due to the fact that the insulation distance is not enough after opening is avoided.
In addition, because the number of active isolating switch devices is huge, the realization of state monitoring can only be accomplished by reforming the existing devices in consideration of cost reasons. For safety and cost, the process should be completed under the condition of no power failure as much as possible, and the normal operation of the original equipment should not be influenced. In addition, the additionally installed equipment ensures higher reliability and continuous energy supply, and reduces the operation and maintenance cost.
In summary, in the existing monitoring methods at the present stage, the auxiliary contact method can only indirectly determine the opening and closing conditions of the disconnecting link through the opening and closing of the auxiliary contact, and the determination result is unreliable; the pressure method can only judge whether the switch-on is in place, but cannot judge the in-place situation of the switch-off; the angle method is difficult to adjust due to the dispersion of the mechanical structure, and has a possibility of misjudgment. In addition, the last two methods cannot complete transformation under the condition of no power failure due to the limitation of the installation position, and can only supply power through a battery, so that the requirement of long-term stable operation cannot be met.
Due to the problems, the existing transformer substation site does not have the capability of accurately and effectively carrying out automatic remote sensing on the state of the disconnecting link.
Disclosure of Invention
The invention aims to provide an open type isolating switch state sensing device which can simply, effectively and reliably monitor the state of an open type isolating switch and is easy to modify and implement.
In order to achieve the purpose, the invention adopts the technical scheme that:
an open type isolating switch state sensing device is used for identifying the on-off state of an open type isolating switch, and comprises:
the depth camera is used for shooting a depth image of the open type isolating switch;
and the processing unit is connected with the depth camera and used for identifying the on-off state of the open isolating switch based on the depth image and outputting an identification signal containing an identification result.
Preferably, the depth camera constructs the depth image by means of infrared light.
Preferably, the depth camera is arranged corresponding to the disconnecting link fracture of the open-type isolating switch.
Preferably, the processing unit identifies whether the open-type disconnecting switch is closed in place according to an angle formed between two contact arms of the open-type disconnecting switch or a gap between contacts of the open-type disconnecting switch, wherein the angle is represented in the depth image; and the processing unit identifies whether the open-type isolating switch is in place or not according to the insulation distance between the two contacts of the open-type isolating switch and the included angle of the contact arm of the open-type isolating switch relative to the switching-on position, which are shown in the depth image.
Preferably, the state sensing device of the open-type disconnecting switch comprises one depth camera and one processing unit, or the state sensing device of the open-type disconnecting switch comprises a plurality of depth cameras which are arranged in one-to-one correspondence with the open-type disconnecting switches and a plurality of processing units which are arranged in one-to-one correspondence with the depth cameras, or the state sensing device of the open-type disconnecting switch comprises a plurality of depth cameras which are arranged in one-to-one correspondence with the open-type disconnecting switches and one processing unit which is respectively connected with the depth cameras.
Preferably, the processing unit is in communication connection with a measurement and control terminal of a disconnecting switch in a transformer substation, and transmits the identification signal to the measurement and control terminal of the disconnecting switch as a remote signaling signal, and the measurement and control terminal of the disconnecting switch is accessed to a monitoring network of the transformer substation.
Preferably, the monitoring network comprises a substation monitoring host in communication connection with the disconnecting switch measurement and control terminal, and the processing unit is in communication connection with the substation monitoring host and forwards the depth image to the substation monitoring host.
Preferably, the processing unit is connected with the substation monitoring host through optical fiber communication.
Preferably, the substation monitoring host is in communication connection with the monitoring master station.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages: the invention can monitor the open-close state of the open-type isolating switch, and has the advantages of easy implementation, effectiveness, reliability, wide application range, low modification cost, simple operation and maintenance and the like.
Drawings
FIG. 1 is a schematic diagram of a circuit breaker spacing
Fig. 2 is a flow chart of the programmed switching operation of the circuit breaker.
Fig. 3 is a measurement schematic of a depth image.
Fig. 4 is a schematic view of a depth image.
Fig. 5 is a schematic diagram of a 110kV open-type isolating switch.
Fig. 6 is a depth image of the open-type disconnecting switch when the open-type disconnecting switch is switched on.
FIG. 7 is a depth image of an open-type disconnecting switch when the switch is not in place.
Fig. 8 is a depth image when the open-type disconnecting switch is opened to the position.
Fig. 9 is a depth image of the open-type disconnecting switch when the opening is not in place.
Fig. 10 is a schematic diagram of an open-type disconnector state sensing device accessing to a substation monitoring network.
Detailed Description
The invention will be further described with reference to examples of embodiments shown in the drawings to which the invention is attached.
The first embodiment is as follows: the most effective judgment method for the on-off condition of the disconnecting switch is to judge by visually observing the position of a contact, which is also the most widely accepted judgment method generally adopted in the field at present. However, in remote condition monitoring, it is obvious that human eye visualization can no longer be relied upon as a criterion. In recent years, with the continuous development of artificial intelligence, computer vision can replace human eye recognition in many aspects, and in the application scenario, an optical camera can be additionally arranged at a proper position of the disconnecting link, and the effective perception of the position of the disconnecting link can be realized by combining an image recognition technology.
The two-dimensional visible light image is generally used for image recognition at present, and the two-dimensional visible light image has the advantages that the shape and the color of a measured object can be well restored, but the two-dimensional visible light image is insensitive to the spatial position relationship among the objects, so that the algorithm complexity in subsequent image processing is higher. For the position detection of the disconnecting switch, the change of the relative position of the disconnecting switch contact is mainly concerned, and the device needs to monitor the displacement condition of the disconnecting switch in real time, so that the algorithm of image processing is required to be simple to ensure the real-time performance of a calculation result, and therefore the applicability of the two-dimensional visible light image identification technology in the scene is not high.
Based on the situation, a novel open type isolating switch state sensing device is designed, and comprises a depth camera and a processing unit. The depth camera is used for shooting a depth image of the open type isolating switch. The processing unit is connected with the depth camera and used for identifying the on-off state of the open isolating switch based on the depth image and outputting an identification signal containing an identification result.
The depth image uses the parallax principle, so two lenses are needed, for a certain point on a viewed object, the two lenses respectively have the visual angles of α and β, and the distance d between the point and a visual plane can be calculated as follows:
the distances between all points on the object to be viewed and the viewing plane can be obtained, and the depth image shown in fig. 4 can be obtained. Different colors are used in the depth image to represent the distance between the point and the view plane. It can be seen from the figure that the depth image omits the secondary attributes such as the color of the object itself, but completely retains the cross-sectional coordinates and the longitudinal depth of the viewed object, so that the position information of the viewed object can be reflected concisely, and the complexity of the algorithm for identifying the position of the object based on the depth image is greatly reduced.
Furthermore, depth cameras typically construct a depth image by means of infrared light, since there is no need to acquire the true appearance of the viewed object. Since all objects above absolute zero spontaneously radiate infrared rays outward, a depth image of an object to be viewed can be obtained even in a dark environment.
For the application scene of the state perception of the disconnecting switch, the depth camera is installed at a proper position, and the real-time monitoring of the position of the disconnecting switch can be realized. The method of using the typical isolating switch is described as an example. Fig. 5 shows a conventional 110kV open disconnector, which is of a mid-open configuration, with two contacts on two separate bushing legs and a break in the middle. The figure shows the switching-on position of the disconnecting link, and the two contacts respectively rotate to the same side to form an obvious fracture when the disconnecting link is switched off. For the disconnecting link, the depth camera 11 can be installed on the base right below the fracture, so that the lens is aligned with the disconnecting link fracture, that is, the depth camera 11 is arranged corresponding to the disconnecting link fracture of the open-type disconnecting switch, and thus a depth image of the disconnecting link fracture is shot.
When the knife switch contact is in different states, different depth images can be generated on the camera, as shown in fig. 6 to 9. It can be seen that the positions of the contacts of the disconnector in different states show a significant difference. Therefore, in the processing unit, when judging and identifying whether the open type disconnecting switch is switched on in place, the judgment can be carried out according to an angle formed between two contact arms of the open type disconnecting switch or a gap between contacts of the open type disconnecting switch and the like shown in the depth image; when judging and identifying whether the open-type disconnecting switch is in place or not, the judgment can be carried out according to the insulation distance between the two contacts of the open-type disconnecting switch, the included angle between the contact arm of the open-type disconnecting switch and the switching-on position and the like shown in the depth image.
For the open-type disconnecting switch, because a sufficient insulation distance needs to be kept, a certain space distance exists between the conducting rod and other equipment, so that the other equipment in the station is used as a background and is represented as a single color block on a depth image, and the boundary with the open-type disconnecting switch is obvious. Therefore, the device can be used for easily extracting the outline of the object to be observed from the image and finding out the key point needed to be used for judging, thereby realizing the perception of the state of the isolating switch.
Fig. 6 to 9 show depth images of the mid-open disconnector. In fact, for almost all forms of open-type disconnecting switch structures, such as telescopic type, double-port type, single-arm rotary type and the like, as long as the installation position is proper, a depth image with obvious separation of foreground and background and easily distinguished different states can be obtained. Therefore, the device has strong universality for state perception of the isolating switch.
Based on the basic scheme, if the on-off state of an open isolating switch is sensed, the device only needs to comprise a depth camera and a processing unit. If the open-type disconnecting switches in the transformer substation are subjected to on-off state sensing, the device not only can comprise a plurality of depth cameras which are arranged in one-to-one correspondence with the open-type disconnecting switches and a plurality of processing units which are arranged in one-to-one correspondence with the depth cameras, but also can comprise a plurality of depth cameras which are arranged in one-to-one correspondence with the open-type disconnecting switches and a processing unit which is respectively connected with the depth cameras.
As shown in fig. 10, the state sensing device of the open-type disconnecting switch comprises a plurality of depth cameras and a distributed processing unit. And the processing unit is in communication connection with the isolating switch measurement and control terminal in the transformer substation and transmits the identification signal to the isolating switch measurement and control terminal as a remote signaling signal, and the isolating switch measurement and control terminal is accessed to a monitoring network of the transformer substation. The monitoring network comprises a transformer substation monitoring host which is in communication connection with the disconnecting switch measurement and control terminal, and the processing unit is in communication connection with the transformer substation monitoring host through optical fibers and forwards the depth image to the transformer substation monitoring host. And the transformer substation monitoring host is in communication connection with the monitoring master station.
In the scheme, each phase of the isolating switch is provided with a depth camera, and images acquired by the depth camera are collected to a distributed processing unit through an optical fiber. The distributed processing unit analyzes the depth image into the on-off information of the disconnecting link through a built-in image processing algorithm, then the on-off information is used as one of remote signaling signals to be transmitted to a measurement and control terminal of the disconnecting link, and then the monitoring network of the transformer substation is accessed. On the other hand, the distributed processing unit can directly transmit the image acquired by the depth camera to the substation monitoring host through the optical fiber, and the image is used as a part of the substation video monitoring to manually distinguish the disconnecting link with doubtful state judgment.
For the transformer substation monitoring network, the newly-added equipment is the part in the dashed line frame in fig. 10, and only the corresponding telemetry signal is added without changing the operation of the original monitoring network, so that the reconstruction cost and the influence are small.
Due to the fact that the complexity of an algorithm for sensing the state by using the depth image is low, the calculation force requirement can be met by adopting the distributed processing unit in the scheme. If the calculation power is still surplus, one processing unit can be used for processing images of a plurality of disconnecting links in a centralized mode, and then displacement information is distributed to the measurement and control terminals of the disconnecting links, so that the cost is further reduced.
The invention has the beneficial effects that:
(1) the reliability is high. The reliability of the state sensing of the isolating switch can greatly influence the stability of the one-key sequence control system, and misoperation accidents are prevented. In the traditional state perception method, an auxiliary contact method and an angle method are easily influenced by mechanical structure aging, and the reliability degree is low; the pressure method can only detect closing and cannot judge the opening condition. The perception method based on the depth image recognition can effectively separate the contact of the disconnecting link from the background image, has high recognition degree for the form difference of the contact under different states, and is independent of the mechanical structure of the disconnecting link, so the perception method is not influenced by the aging of the structure of the disconnecting link body. In addition, the method can directly provide the depth image besides the automatic identification system, and provides an iconography basis for manual identification.
(2) Has wide application range. In the existing sensing method, the pressure method is only suitable for a disconnecting link with a pressure spring at the contact position, and the angle method is only suitable for a rotary isolating switch. The sensing method provided by the invention is independent of the mechanical structure of the disconnecting link, so that the sensing method can be applied to any form of open-type disconnecting switch by selecting a proper installation position and using a certain machine learning process. In addition, the depth image generally senses the object to be viewed by using an infrared band, and is not influenced by ambient light, so that the depth image is an all-weather and all-form state sensing method.
(3) The improvement cost is low: at present, the existing isolating switches in the power grid are large in quantity, and do not have other state sensing conditions except for auxiliary contacts, so that modification is needed. The sensors required by the pressure method and the angle method are required to be arranged on the high-voltage part of the isolating switch, so that power failure modification is required, and the modification cost is high. The equipment required by the sensing method provided by the invention is not in electric contact with the high-voltage part of the isolating switch, and the equipment can be modified in a charged state. In addition, after data given by the depth camera is processed into a displacement signal by the distributed processing unit, the displacement signal can be directly accessed to the existing monitoring network of the transformer substation, a communication line does not need to be additionally laid, and the normal operation of the existing equipment is not influenced, so the transformation cost of the method is low.
(4) The operation and maintenance are simple. Since the state-aware devices need to be operated in the field for a long period of time, the operation and maintenance costs thereof are a concern. Because the sensors of the pressure method and the angle method are both arranged at the high-voltage part of the equipment, the power can be supplied only by a battery, the power needs to be periodically cut off and replaced, the detection result is easily influenced by the aging of the mechanical structure of the equipment, and the operation and maintenance cost is very high. In the invention, the depth camera is usually installed in a low-voltage area, so that the power can be directly taken nearby from an operation power supply or other positions of the isolating switch without regular replacement, the detection reliability is not influenced by the aging of a mechanical structure of the equipment, and the operation and maintenance cost can be greatly reduced.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (9)
1. The utility model provides an open-type isolator state perception device for discernment open-type isolator's deciliter state, its characterized in that: the state sensing device of the open-type isolating switch comprises:
the depth camera is used for shooting a depth image of the open type isolating switch;
and the processing unit is connected with the depth camera and used for identifying the on-off state of the open isolating switch based on the depth image and outputting an identification signal containing an identification result.
2. The open isolator state sensing device of claim 1, wherein: the depth camera constructs the depth image by means of infrared light.
3. The open isolator state sensing device of claim 1, wherein: the depth camera is arranged corresponding to the disconnecting link fracture of the open-type isolating switch.
4. The open isolator state sensing device of claim 1, wherein: the processing unit identifies whether the open type disconnecting switch is switched on in place or not according to an angle formed between two contact arms of the open type disconnecting switch or a gap between contacts of the open type disconnecting switch, wherein the angle is represented in the depth image; and the processing unit identifies whether the open-type isolating switch is in place or not according to the insulation distance between the two contacts of the open-type isolating switch and the included angle of the contact arm of the open-type isolating switch relative to the switching-on position, which are shown in the depth image.
5. The open isolator state sensing device of claim 1, wherein: the state sensing device of the open type isolating switch comprises one depth camera and one processing unit, or the state sensing device of the open type isolating switch comprises a plurality of depth cameras which are arranged in one-to-one correspondence with the open type isolating switches and a plurality of processing units which are arranged in one-to-one correspondence with the depth cameras, or the state sensing device of the open type isolating switch comprises a plurality of depth cameras which are arranged in one-to-one correspondence with the open type isolating switches and one processing unit which is respectively connected with the depth cameras.
6. The open isolator state sensing device of claim 5, wherein: the processing unit is in communication connection with a disconnecting switch measurement and control terminal in the transformer substation and transmits the identification signal to the disconnecting switch measurement and control terminal as a remote signaling signal, and the disconnecting switch measurement and control terminal is accessed to a monitoring network of the transformer substation.
7. The open isolator state sensing device of claim 6, wherein: the monitoring network comprises a transformer substation monitoring host which is in communication connection with the disconnecting switch measurement and control terminal, and the processing unit is in communication connection with the transformer substation monitoring host and forwards the depth image to the transformer substation monitoring host.
8. The open isolator state sensing device of claim 7, wherein: and the processing unit is in communication connection with the transformer substation monitoring host through an optical fiber.
9. The open isolator state sensing device of claim 7, wherein: and the transformer substation monitoring host is in communication connection with the monitoring master station.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911280896.2A CN111025137A (en) | 2019-12-13 | 2019-12-13 | Open type isolating switch state sensing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911280896.2A CN111025137A (en) | 2019-12-13 | 2019-12-13 | Open type isolating switch state sensing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111025137A true CN111025137A (en) | 2020-04-17 |
Family
ID=70208631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911280896.2A Pending CN111025137A (en) | 2019-12-13 | 2019-12-13 | Open type isolating switch state sensing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111025137A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111614913A (en) * | 2020-05-06 | 2020-09-01 | 许昌许继软件技术有限公司 | One-key sequence control double-confirmation system and method based on intelligent isolation switch position identification |
| CN111898425A (en) * | 2020-06-19 | 2020-11-06 | 济南信通达电气科技有限公司 | State judgment method and device for switching-on and switching-off indicator of transformer substation |
| CN111898481A (en) * | 2020-07-14 | 2020-11-06 | 济南信通达电气科技有限公司 | State identification method and device for pointer type opening and closing indicator |
| CN112257532A (en) * | 2020-10-14 | 2021-01-22 | 中国南方电网有限责任公司超高压输电公司南宁监控中心 | Intelligent analysis method for one-key sequential control video criterion |
| CN112595371A (en) * | 2021-03-02 | 2021-04-02 | 成都工百利自动化设备有限公司 | Sensing system for working state of handcart type high-voltage circuit breaker contact |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101276138A (en) * | 2008-04-30 | 2008-10-01 | 北京工业大学 | Binocular stereoscopic camera with self-adjusting base length |
| CN101893686A (en) * | 2010-06-11 | 2010-11-24 | 河南电力试验研究院 | Digital radiography-based breaker operating characteristic on-line detection device and method |
| CN101949721A (en) * | 2009-12-22 | 2011-01-19 | 中国矿业大学(北京) | Method for measuring coal bunker material level based on laser and binocular vision and device thereof |
| CN102937811A (en) * | 2012-10-22 | 2013-02-20 | 西北工业大学 | Monocular vision and binocular vision switching device for small robot |
| CN103198473A (en) * | 2013-03-05 | 2013-07-10 | 腾讯科技（深圳）有限公司 | Depth image generating method and device |
| CN103292710A (en) * | 2013-05-27 | 2013-09-11 | 华南理工大学 | Distance measuring method applying binocular visual parallax error distance-measuring principle |
| CN105160680A (en) * | 2015-09-08 | 2015-12-16 | 北京航空航天大学 | Design method of camera with no interference depth based on structured light |
| CN105389543A (en) * | 2015-10-19 | 2016-03-09 | 广东工业大学 | Mobile robot obstacle avoidance device based on all-dimensional binocular vision depth information fusion |
| CN106683163A (en) * | 2015-11-06 | 2017-05-17 | 杭州海康威视数字技术股份有限公司 | Imaging method and system used in video monitoring |
| CN110268701A (en) * | 2017-01-31 | 2019-09-20 | 株式会社理光 | Imaging device |
-
2019
- 2019-12-13 CN CN201911280896.2A patent/CN111025137A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101276138A (en) * | 2008-04-30 | 2008-10-01 | 北京工业大学 | Binocular stereoscopic camera with self-adjusting base length |
| CN101949721A (en) * | 2009-12-22 | 2011-01-19 | 中国矿业大学(北京) | Method for measuring coal bunker material level based on laser and binocular vision and device thereof |
| CN101893686A (en) * | 2010-06-11 | 2010-11-24 | 河南电力试验研究院 | Digital radiography-based breaker operating characteristic on-line detection device and method |
| CN102937811A (en) * | 2012-10-22 | 2013-02-20 | 西北工业大学 | Monocular vision and binocular vision switching device for small robot |
| CN103198473A (en) * | 2013-03-05 | 2013-07-10 | 腾讯科技（深圳）有限公司 | Depth image generating method and device |
| CN103292710A (en) * | 2013-05-27 | 2013-09-11 | 华南理工大学 | Distance measuring method applying binocular visual parallax error distance-measuring principle |
| CN105160680A (en) * | 2015-09-08 | 2015-12-16 | 北京航空航天大学 | Design method of camera with no interference depth based on structured light |
| CN105389543A (en) * | 2015-10-19 | 2016-03-09 | 广东工业大学 | Mobile robot obstacle avoidance device based on all-dimensional binocular vision depth information fusion |
| CN106683163A (en) * | 2015-11-06 | 2017-05-17 | 杭州海康威视数字技术股份有限公司 | Imaging method and system used in video monitoring |
| CN110268701A (en) * | 2017-01-31 | 2019-09-20 | 株式会社理光 | Imaging device |
Non-Patent Citations (1)
| Title |
|---|
| 夏志红: "基于遥视系统的电气设备分合状态自动识别研究", 《中国优秀博硕士学位论文全文数据库工程科技二辑》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111614913A (en) * | 2020-05-06 | 2020-09-01 | 许昌许继软件技术有限公司 | One-key sequence control double-confirmation system and method based on intelligent isolation switch position identification |
| CN111898425A (en) * | 2020-06-19 | 2020-11-06 | 济南信通达电气科技有限公司 | State judgment method and device for switching-on and switching-off indicator of transformer substation |
| CN111898481A (en) * | 2020-07-14 | 2020-11-06 | 济南信通达电气科技有限公司 | State identification method and device for pointer type opening and closing indicator |
| CN112257532A (en) * | 2020-10-14 | 2021-01-22 | 中国南方电网有限责任公司超高压输电公司南宁监控中心 | Intelligent analysis method for one-key sequential control video criterion |
| CN112595371A (en) * | 2021-03-02 | 2021-04-02 | 成都工百利自动化设备有限公司 | Sensing system for working state of handcart type high-voltage circuit breaker contact |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111025137A (en) | Open type isolating switch state sensing device | |
| CN111614913B (en) | One-key sequential control double-confirmation system and method based on intelligent isolation switch position identification | |
| CN110174613A (en) | A kind of state monitoring apparatus and method of disconnecting switch | |
| CN103278244A (en) | Monitoring method and monitoring system for overheat fault of transformer | |
| CN109031112A (en) | A kind of New Type Isolating Switch divide-shut brake detection device and its working method | |
| CN102890236A (en) | Device and method for detecting complete turn-on of high-voltage isolating switch | |
| CN204425046U (en) | The intelligent monitor system of transmission & distribution transformer station | |
| CN105572581A (en) | Online detection system and online detection method for isolating switch | |
| CN110411892A (en) | A kind of contact point signal Acquisition Circuit of scene on-line testing gas density relay | |
| CN111044895A (en) | State sensing method for open type isolating switch | |
| CN202120803U (en) | Moving contact vertical moving type high pressure isolation switch used for moving contact position detection | |
| CN103681087B (en) | Intelligence branch's demarcation vacuum circuit breaker the complete sets of equipment and guard method thereof | |
| CN110855007A (en) | Intelligent video sensing device and system for isolating switch | |
| CN111458631A (en) | 10kV middle-placed vacuum circuit breaker trolley stroke visualization system | |
| CN109004618A (en) | A kind of electric arc protection on-line monitoring system | |
| CN102254729B (en) | Moving contact vertical motion type high voltage isolating switch capable of detecting position of moving contact | |
| CN102254728B (en) | Dynamic contact horizontal movement type high-voltage isolation switch allowing for detection of position of dynamic contact | |
| CN202888715U (en) | Switch-cabinet control unit and switch cabinet | |
| CN206412660U (en) | Isolated switchgear and switch cubicle long-distance monitorng device | |
| CN110601376B (en) | High-voltage isolating switch closing in-place monitoring device and method | |
| CN111190119B (en) | System and method for testing standby power supply of Hua lamp based on ubiquitous Internet of things | |
| CN114374270A (en) | Intelligent inspection linkage management system for transformer substation | |
| CN113932695A (en) | Disconnecting link position confirmation sensor device based on magnetic induction technology | |
| CN207717230U (en) | A kind of Internet of Things wireless temperature measurement data transmission system | |
| CN202839440U (en) | Intelligent branch division vacuum circuit breaker complete device |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200417 |
|
| RJ01 | Rejection of invention patent application after publication |