CN213878685U - Visual power supply grounding device - Google Patents

Abstract

The utility model belongs to the technical field of urban rail transit direct current pulls power supply system, concretely relates to visual power supply earthing device, including multistation isolator, station recognition device, controller, station recognition device includes camera subassembly and station recognition component, camera subassembly and station recognition component electric connection, camera subassembly shoots and obtains multistation isolator's station image data, and sends to station recognition component and judges and obtain corresponding video station signal by it; the controller is respectively electrically connected with the multi-station isolating switch and the station identification assembly, receives a mechanical station signal sent by the multi-station isolating switch and a video station signal sent by the station identification assembly, judges whether the video station signal is matched with the mechanical station signal or not, and sends a judgment result to the upper computer; the controller receives the instruction of the upper computer and controls the multi-station isolating switch to switch among the multiple stations.

Description

Visual power supply grounding device

Technical Field

The utility model belongs to the technical field of urban rail transit direct current pulls power supply system, concretely relates to visual power supply earthing device.

Background

According to the requirements of rail transit safety management laws, when the installation distance of equipment facilities in an electrified range is smaller than a safety regulation distance, power failure and hanging protection grounding are required for overhauling of the equipment facilities. Therefore, the maintenance of the rail transit equipment and the power supply network is a hanging protection grounding measure and becomes necessary operation of each urban rail transit operation department; the traditional manual maintenance mode of protective grounding measures of hanging and dismantling has great potential safety hazard and risks of harming personal and equipment safety.

At present, some visual power supply grounding devices are also arranged on the market, a special state monitoring camera and a visual station control host are added on the basis of a special automatic grounding device (an electric grounding isolation switch cabinet), but video signals still need to be identified manually, risks of artificial misjudgment and misoperation exist, and if the visual station control host fails, the isolation switch cannot be identified and judged, so that the effect of off-line of the position of the isolation switch of the full substation is caused.

SUMMERY OF THE UTILITY MODEL

In view of the problem that exists among the prior art, the utility model provides a visual power supply earthing device has carried out optimization setting to the subassembly module wherein, has improved the robustness of a whole equipment, has promoted the security characteristic of system.

The utility model discloses a concrete technical scheme as follows:

a visual power supply grounding device comprises a multi-station isolating switch, a station identification device and a controller,

the station identification device comprises a camera assembly and a station identification assembly, wherein the camera assembly is electrically connected with the station identification assembly, shoots and obtains station image data of the multi-station isolating switch, and sends the station image data to the station identification assembly, and the station identification assembly judges the station image data and obtains a corresponding video station signal;

the controller is respectively electrically connected with the multi-station isolating switch and the station identification assembly, receives a mechanical station signal sent by the multi-station isolating switch and a video station signal sent by the station identification assembly, judges whether the video station signal is matched with the mechanical station signal or not, and sends a judgment result to the upper computer;

the controller receives the instruction of the upper computer and controls the multi-station isolating switch to switch among the multiple stations.

The station recognition device is electrically connected with an upper computer and sends station image data and video station signals to the upper computer.

Wherein, the station identification device can also comprise an illuminating component.

The visual power supply grounding device further comprises at least two electricity testing devices, the electricity testing devices are electrically connected with the controller, and electricity testing results are sent to the controller.

And the controller judges whether the electricity testing result is normal or not and sends the judgment result to the upper computer.

The visual power supply grounding device further comprises a discharging device.

Advantageous effects

The utility model discloses optimize system's device, realize the intelligent recognition of the subassembly of making a video recording to the position of three station isolator of power supply ground connection, simplify video system network framework, strengthen visual system's robustness, the dependency of the software/hardware stability of the lowering system to the station accuse main part. In addition, the controller is used for identifying and judging the position of the isolating switch doubly, so that the possibility of misoperation of equipment caused by single fault of a mechanical travel switch in the prior art is avoided. The electricity testing device also adopts a redundant voltage measuring element, so that the safety and the stability of the power supply grounding device are improved.

Drawings

FIG. 1 is a structural diagram of the present invention

FIG. 2 is a schematic view of the connection of the present invention

Detailed Description

The utility model discloses a visual power supply earthing device, as shown in fig. 1, fig. 2, including multistation isolator 1, station recognition device 2, controller 4, station recognition device 2 includes camera subassembly and station recognition component, camera subassembly and station recognition component electric connection, camera subassembly shoots and obtains the station image data of multistation isolator 1, and send to station recognition component and judge and obtain corresponding video station signal by it, controller 4 respectively with multistation isolator 1, station recognition component electric connection; the controller 4 receives the mechanical station signal sent by the multi-station isolating switch 1 and the video station signal sent by the station identification assembly, compares and judges whether the video station signal is matched with the mechanical station signal or not, and sends a judgment result to an upper computer; the controller 4 receives the instruction of the upper computer and controls the multi-station isolating switch 1 to switch among multiple stations.

The station identification component in this embodiment may be, for example, a commercially available vision identification ARM motherboard; the camera component may be, for example, a CCD lens; the multi-position disconnector 1 may be a three-position disconnector, for example.

Through setting up the utility model discloses a visual power supply earthing device, originally handing over "transferring" to station recognition device by the recognition function of host computer among the prior art, station image data no longer need transmit for the host computer, but directly sends for station recognition component by the camera subassembly to do not rely on the operating mode of video data flow communication network communication and host computer, guaranteed the stability of operation. In addition, the controller compares the video station signals obtained by the station recognition device with the mechanical station signals fed back by the multi-station isolating switch, and realizes double recognition of the position of the isolating switch through AND logic judgment, so that the possibility of equipment misoperation caused by single switch fault in the prior art is avoided.

Preferably, the station recognition device 2 is electrically connected with an upper computer and sends station image data and station signals to the upper computer, so that the upper computer can collect and summarize data or display the data as the state of the equipment.

Preferably, the station recognition device 2 may further include an illumination component to support all-weather light brightness working conditions, so that the clarity of video acquisition and the precision of position recognition of the disconnecting switch can be ensured even in a dark tunnel without external illumination conditions. For example, the lighting component may be an LED auxiliary light component.

Particularly, the visual power supply grounding device of the utility model can also comprise at least two electricity testing devices 3, the electricity testing devices 3 are electrically connected with the controller 4, the electricity testing result is sent to the controller 4, the controller 4 judges whether the testing result exceeds the error to realize a redundant monitoring loop, the potential state of the contact net (rail) side is monitored in real time, if the monitoring error of the two electricity testing devices 3 exceeds the default value (5%), an equipment fault locking signal is sent, and any operation of a disconnecting switch is locked; the electricity testing device 3 detects the real-time voltage of the contact network (rail), and if the voltage is within a safe voltage threshold value, the controller 4 sends an operation permission instruction; the controller 4 identifies the working position of the multi-station isolating switch 1 in a composite judging mode through a mechanical travel switch of the multi-station isolating switch 1 and the station identification device 2, and further switches the stations of the multi-station isolating switch 1 according to remote or local operation instructions.

Particularly, visual power supply earthing device, can also include discharge device for there is the unusual non-supply voltage who is higher than safe voltage threshold value in absorption feeder contact net (rail) of releasing. The discharge device consists of an abnormal voltage instantaneous discharge loop and a safety protection element, wherein the instantaneous discharge loop adopts a high-power electric element, can bear short-time overload power and absorb abnormal virtual voltage of a contact net (rail) so as to ensure that the power supply grounding multi-station isolating switch can be switched to operate without load.

Claims (6)

1. A visual power supply grounding device is characterized by comprising a multi-station isolating switch (1), a station identification device (2) and a controller (4),

the station identification device (2) comprises a camera assembly and a station identification assembly, the camera assembly is electrically connected with the station identification assembly, the camera assembly shoots and obtains station image data of the multi-station isolating switch (1), and the station image data is sent to the station identification assembly and is judged by the station identification assembly to obtain corresponding video station signals;

the controller (4) is respectively electrically connected with the multi-station isolating switch (1) and the station identification assembly, and the controller (4) receives a mechanical station signal sent by the multi-station isolating switch (1) and a video station signal sent by the station identification assembly, judges whether the video station signal is matched with the mechanical station signal or not, and sends a judgment result to an upper computer;

the controller (4) receives the instruction of the upper computer and controls the multi-station isolating switch (1) to switch among multiple stations.

2. The power supply grounding device according to claim 1, wherein the station recognition device (2) is electrically connected with an upper computer, and the station recognition device (2) sends station image data and video station signals to the upper computer.

3. The powered grounding device according to claim 1, characterized in that said station identification means (2) may further comprise an illumination means.

4. The powered grounding device according to claim 1, characterized by further comprising at least two electroscopic devices (3), wherein the electroscopic devices (3) are electrically connected with the controller (4) and send electroscopic results to the controller (4).

5. The power supply grounding device according to claim 4, wherein the controller (4) judges whether the electricity testing result is normal or not, and sends the judgment result to the upper computer.

6. The powered grounding device of claim 1, further comprising a discharge device.

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