CN216925550U

CN216925550U - Gesture detection device for disconnecting link

Info

Publication number: CN216925550U
Application number: CN202123125907.5U
Authority: CN
Inventors: 席立平; 陈威; 唐丹
Original assignee: Shenzhen Sunroad Technology Co ltd
Current assignee: Shenzhen Sunroad Technology Co ltd
Priority date: 2021-12-13
Filing date: 2021-12-13
Publication date: 2022-07-08
Anticipated expiration: 2031-12-13

Abstract

The utility model discloses a posture detection device for a disconnecting link, which comprises: the device comprises an attitude sensing module, a micro-power management module and a communication module; the attitude sensing module is arranged at the rotating part of the disconnecting link, can rotate along with the rotating part and is used for detecting the angle of the rotating part; the micro-power management module is connected with the attitude sensing module and the communication module and used for providing electric energy; the micro-power management module comprises an LDO chip, a first power switch and a second power switch; the LDO chip is used for supplying power to the attitude sensing module through the first power switch and supplying power to the communication module through the second power switch; the communication module is connected with the attitude sensing module and is used for carrying out wireless communication with the remote equipment. The angle of the disconnecting link can be monitored in real time, and real-time attitude data is transmitted to a background in a wireless mode; the high-precision attitude measurement overcomes the influences of field electromagnetic interference and vibration, and the position information and the mechanical characteristic information of the disconnecting link are clear.

Description

Gesture detection device for disconnecting link

Technical Field

The utility model relates to the technical field of power grid electric power, in particular to a posture detection device for a disconnecting link.

Background

With the development of intellectualization, various digital transformer substations are gradually transformed to intelligent transformer substations, in the intelligent transformer substations, electrical equipment of the intelligent transformer substations is sensed through a sensing technology and an artificial intelligence technology, and accurate management and scientific decision-making of the electrical equipment are achieved through data transmission, information interconnection and edge calculation.

At present, the detection of the on-off state of the disconnecting link in each transformer substation mainly depends on a contact switch or is realized by using a wired multi-angle sensor, however, the above method cannot accurately reflect the position of the disconnecting link, only can prompt whether the disconnecting link is in place or not, and the related information of the on-off mechanical characteristics and the state of a moving mechanism cannot be accurately obtained. In addition, in the prior art, if the on-off state of the disconnecting link is detected, a communication circuit needs to be arranged from the main control room to each disconnecting link, so that the engineering quantity is large, the construction period is long, and the intelligent substation is not suitable for the construction pace.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems, the present invention provides an attitude detecting device for a disconnecting link, including:

the utility model provides a posture detection device for a disconnecting link, which comprises: the device comprises an attitude sensing module, a micro-power management module and a communication module; the gesture sensing module is arranged on a rotating part of the disconnecting link, can rotate along with the rotating part and is used for detecting a pitch angle, a roll angle and/or a yaw angle of the rotating part; the micro-power management module is connected with the attitude sensing module and the communication module and is used for providing electric energy for the attitude sensing module and the communication module; the micro-power management module comprises an LDO chip, a first power switch and a second power switch; the LDO chip is connected with the first power switch and the second power switch, and is used for supplying power to the attitude sensing module through the first power switch and supplying power to the communication module through the second power switch; the communication module is connected with the attitude sensing module and is used for carrying out wireless communication with remote equipment.

In one example, the gesture sensing module includes: accelerometers, gyroscopes, magnetometers; the accelerometer is used for detecting acceleration information of the rotating part; the gyroscope is used for detecting the angular speed information of the rotating part; the magnetometer is used for detecting magnetic field information of the environment where the rotating portion is located.

In one example, the gesture sensing module further comprises: an attitude sensor chip; the attitude sensor chip is used for processing the acceleration information, the angular velocity information and the magnetic field information; the attitude sensor chip is connected with the communication module.

In one example, the gesture sensing module further comprises: a Kalman filter circuit, a complementary filter circuit; the accelerometer, the gyroscope and the magnetometer are connected with the attitude sensor chip through the Kalman filter circuit and the complementary circuit.

In one example, the micro power management module further comprises: a lithium-thionyl chloride cell; the lithium-thionyl chloride battery is connected with the LDO chip and used for outputting electric energy through the LDO chip.

In one example, the communication module is capable of wirelessly communicating with the remote device at a peak pulse current of no greater than 20 mA.

In one example, the micro power management module is used for power supply management of sensors in a substation.

The gesture detection device for the disconnecting link provided by the utility model can bring the following beneficial effects: the angle of the disconnecting link can be monitored in real time, and real-time attitude data is transmitted to a background in a wireless mode; the attitude measurement with high precision overcomes the influences of field electromagnetic interference and vibration, and the position information and the mechanical characteristic information of the disconnecting link are clear; wireless transmission is adopted, so that field wiring is greatly saved, and the problem of long scheduled power failure debugging period is solved; the whole low-power consumption design can reach the service life of ten years without replacing the battery.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and not to limit the utility model. In the drawings:

fig. 1 is a schematic diagram of an attitude detecting apparatus for a knife switch according to an embodiment of the present invention.

Description of reference numerals:

the system comprises a 10-attitude sensing module, a 11-accelerometer, a 12-gyroscope, a 13-magnetometer, a 14-attitude sensor chip, a 15-Kalman filtering circuit, a 16-complementary circuit, a 20-micropower management module, a 21-LDO chip, a 22-first power switch, a 23-second power switch, a 24-lithium-thionyl chloride battery and a 30-communication module.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In addition, in the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and encompass, for example, both fixed and removable connections or integral parts thereof; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The technical solutions provided by the embodiments of the present invention are described in detail below with reference to the accompanying drawings.

As shown in fig. 1, an attitude detecting apparatus for a disconnecting link according to an embodiment of the present invention includes: attitude sensing module 10, micro-power management module 20, communication module 30.

Specifically, the posture sensing module 10 may be disposed at a rotating portion of the knife switch, and may rotate along with the rotating portion of the knife switch, so as to detect a pitch angle and/or a roll angle and/or a yaw angle of the rotating portion.

The pitch angle, roll angle and yaw angle of the rotating part are used for representing the closing postures of the disconnecting link in different directions and reflecting the opening and closing positions of the disconnecting link and the mechanical characteristics of the disconnecting link rotating part in the movement process.

In addition, the micro power management module 20 is connected to the gesture sensing module 10 and the communication module 30, and is configured to provide power to the gesture sensing module 10 and the communication module 30.

Micropower management module 20 includes LDO chip 21, first power switch 22, second power switch 23, and wherein, LDO chip 21 is connected with first power switch 22 and second power switch 23, and LDO chip 21 is used for supplying power for attitude sensing module 10 through first power switch 22 to and supply power for communication module 30 through second power switch 23.

The LDO chip 21 usually uses a power transistor as PNP, and this transistor allows saturation, so that there is a very low dropout voltage between the input voltage and the output voltage, usually about 200mV, and the quiescent current can be as low as 1 μ a, and in addition, separate power switches are used for different modules, which can further reduce the power consumption of the system.

The communication module 30 is connected to the gesture sensing module 10, and is configured to perform wireless communication with a remote device. It should be noted that the remote device is a device used by a controller to monitor or obtain the opening and closing positions of the knife switch and the mechanical characteristics of the switch during the movement of the rotating part of the knife switch. The communication module 30 adopts a micropower wireless communication module, can realize wireless communication of peak pulse current below 20mA, designs a standardized wireless network communication protocol with low power consumption, and meets the design requirement of integrally reducing power consumption.

In one embodiment, the attitude sensing module 10 further includes an accelerometer 11, a gyroscope 12, and a magnetometer 13.

The accelerometer 11 is used to detect acceleration information of the rotating part.

The gyroscope 12 is used to detect angular velocity information of the rotating portion.

The magnetometer 13 is used to detect magnetic field information of the environment in which the rotating portion is located.

The gesture sensing module 10 can obtain the closing gestures of the disconnecting link in different directions through the mutual matching among the accelerometer 11, the gyroscope 12 and the magnetometer 13, and reflect the opening and closing positions of the rotating part of the disconnecting link and the mechanical characteristics of the switch in the motion process.

In one embodiment, the attitude sensing module 10 further includes an attitude sensor chip 14.

The attitude sensor chip 14 is configured to process the acceleration information, the angular velocity information, and the magnetic field information to obtain a pitch angle and/or a roll angle and/or a yaw angle of the rotating portion.

The attitude sensor chip 14 is connected to the communication module 30, so that the pitch angle and/or roll angle and/or yaw angle of the rotating portion are transmitted to the remote device through the communication module 30 by wireless signals.

In one embodiment, the attitude sensing module further includes a kalman filter circuit 15 and a complementary filter circuit 16.

The accelerometer 11, the gyroscope 12, and the magnetometer 13 are connected to the attitude sensor chip 14 through a kalman filter circuit 15 and a complementary filter circuit 16.

The acceleration information, the angular velocity information and the magnetic field information are integrated through the Kalman filter circuit 15 and the complementary circuit 16, so that field magnetic field interference and vibration interference can be overcome, and the opening and closing position information of the disconnecting link can be accurately measured.

In one embodiment, the micro power management module 20 further comprises: a lithium-thionyl chloride cell 24.

The lithium-thionyl chloride battery 24 is connected to the LDO chip 21, and is configured to output electric energy through the LDO chip 21.

Based on the material characteristics of the lithium-thionyl chloride battery 24, the annual self-discharge rate can be realized to be lower than 2% in an environment of ± 20 ℃.

Further, in one embodiment, the communication module 30 may be an existing communication module that complies with a low power standard and is capable of wirelessly communicating with a remote device at a peak pulse current of no greater than 20 mA.

In one embodiment, the micro power management module 20 is used to manage the power supply to the sensors in the substation.

Because the micropower management module 20 can calculate and manage the battery function by adopting a micropower technology and a power edge calculation algorithm, and the application requirement of the battery function for ten years is met, the micropower management module 20 designed in the application can be applied to various sensors in a transformer substation so as to realize power supply management of various sensors.

The embodiments of the present invention are described in a progressive manner, and the same and similar parts among the embodiments can be referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the device and media embodiments, the description is relatively simple as it is substantially similar to the method embodiments, and reference may be made to some descriptions of the method embodiments for relevant points.

It is also noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a device comprising a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such device. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of additional like elements in a device that comprises the element.

The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. An attitude sensing device for a knife switch, comprising: the device comprises an attitude sensing module, a micro-power management module and a communication module;

the gesture sensing module is arranged on a rotating part of the disconnecting link, can rotate along with the rotating part and is used for detecting a pitch angle, a roll angle and/or a yaw angle of the rotating part;

the micro-power management module is connected with the attitude sensing module and the communication module and is used for providing electric energy for the attitude sensing module and the communication module;

the micro-power management module comprises an LDO chip, a first power switch and a second power switch; the LDO chip is connected with the first power switch and the second power switch, and is used for supplying power to the attitude sensing module through the first power switch and supplying power to the communication module through the second power switch;

the communication module is connected with the attitude sensing module and is used for carrying out wireless communication with remote equipment.

2. The attitude sensing apparatus for a disconnecting link according to claim 1, wherein the attitude sensing module comprises: accelerometers, gyroscopes, magnetometers;

the accelerometer is used for detecting acceleration information of the rotating part;

the gyroscope is used for detecting the angular speed information of the rotating part;

the magnetometer is used for detecting the magnetic field information of the environment where the rotating part is located.

3. The attitude sensing device for the disconnecting link according to claim 2, wherein the attitude sensing module further comprises: an attitude sensor chip;

the attitude sensor chip is used for processing the acceleration information, the angular velocity information and the magnetic field information;

the attitude sensor chip is connected with the communication module.

4. The attitude sensing apparatus for a disconnecting link according to claim 3, wherein the attitude sensing module further comprises: a Kalman filter circuit, a complementary filter circuit;

the accelerometer, the gyroscope and the magnetometer are connected with the attitude sensor chip through the Kalman filter circuit and the complementary filter circuit.

5. The attitude detection device for a knife switch of claim 1, wherein the micropower management module further comprises: lithium-thionyl chloride cells;

the lithium-thionyl chloride battery is connected with the LDO chip and used for outputting electric energy through the LDO chip.

6. The attitude detection device for the disconnecting link according to claim 1, wherein the communication module is capable of wirelessly communicating with the remote equipment at a peak pulse current of not more than 20 mA.

7. The attitude detection device for the disconnecting link according to claim 1, wherein the micro-power management module is used for power supply management of sensors in a substation.