Video monitoring system

Abstract

The utility model provides a video monitoring system. The video monitoring system comprises a monitoring computer which is coupled with a plurality of target objects and is used for monitoring the working states of the plurality of target objects; the plurality of video acquisition units are used for acquiring video image data of a plurality of target objects, and the plurality of video acquisition units are in one-to-one correspondence with the plurality of target objects; at least two Ethernet power supply switches, each of which is in communication connection with the at least two video acquisition units and is used for supplying power to the video acquisition units and forwarding the video image data of the video acquisition units; and the network management type switch is respectively in communication connection with the monitoring computer and the at least two Ethernet power supply switches, and is used for receiving the video image data forwarded by the Ethernet power supply switches and forwarding the video image data to the monitoring computer. Through the method and the device, the working state of the target object is monitored in real time, and the operation safety of the target object is ensured.

Description

Technical Field

[0001] The present application relates to the field of remote monitoring technology, and in particular to a video monitoring system. Background Art

[0002] With the development of science and technology and the advancement of technology in the power equipment manufacturing industry, the overall quality of my country's power equipment has been greatly improved, and the reliability of equipment operation has made a qualitative leap. In order to further improve the efficiency and benefits of enterprises, various units in the power supply industry have comprehensively carried out unmanned transformation of substations, and the functions of electric-operated circuit breaker trolleys and earthing switches in center-mounted switch cabinets have been increasingly used.

[0003] At present, the operation mode of power outage maintenance of central switch cabinet in substation is as follows: the opening and closing operation of the circuit breaker itself can be remotely controlled by the remote control center, and the trolley for entering and exiting the circuit breaker needs to be switched on and off. After the power outage, the substation operator goes to the switch cabinet site and uses the crank to manually withdraw it from the operating position to the test position (maintenance position), and finally manually closes the line side grounding knife switch. Before power is supplied, the grounding knife switch is manually separated, and the circuit breaker is pushed to the working position with the crank, and finally the switch is remotely closed to resume power supply. In order to further reduce the workload of substation operation and improve the unmanned capability of the power system, it is hoped that the 10kV and 20kV systems with frequent operations can achieve complete power outage work without "man" on site, which requires that the circuit breaker operation trolley and grounding switch can be remotely operated electrically.

[0004] After the unmanned transformation of the substation, the circuit breaker, circuit breaker trolley, and grounding knife switch can be remotely controlled by the remote control center, and the complete power outage can be realized without "man" on site. However, for the safety of operation, the operation results need to be checked during and after the operation, including: whether the circuit breaker has been opened or closed, whether the circuit breaker trolley has run to the working position or test position, whether the grounding knife switch has been opened or closed, whether the knife switch contacts are in close contact, whether there is an arc during the operation, etc., which introduces new technical problems. Utility Model Content

[0005] The main purpose of the present application is to provide a video monitoring system to at least solve the problem in the prior art that it is difficult to determine whether the switch cabinet operation is safe.

[0006] In order to achieve the above-mentioned purpose, according to one aspect of the present application, a video surveillance system is provided, comprising: a monitoring computer, coupled to a plurality of target objects, for monitoring the working status of the plurality of target objects; a plurality of video acquisition units, for acquiring video image data of the plurality of target objects, the plurality of video acquisition units corresponding one to one with the plurality of target objects; at least two Ethernet power supply switches, each of the Ethernet power supply switches being communicatively connected to at least two of the video acquisition units, for supplying power to the video acquisition units, and for forwarding the video image data of the video acquisition units; a network management switch, respectively communicatively connected to the monitoring computer and the at least two Ethernet power supply switches, for receiving the video image data forwarded by the Ethernet power supply switches, and forwarding the video image data to the monitoring computer.

[0007] Optionally, the video surveillance system further includes a circuit breaker and an earthing switch, and the video acquisition unit is used to monitor the circuit breaker and the earthing switch.

[0008] Optionally, the video surveillance system further comprises: a cabinet, in which the Ethernet power supply switch and the managed switch are installed.

[0009] Optionally, the Ethernet power supply switch includes: an Ethernet power supply port, connected to the video acquisition unit via a first Ethernet cable, for powering the video acquisition unit; a first local area network interface, connected to the managed switch via a second Ethernet cable, for forwarding the video image data to the managed switch.

[0010] Optionally, the managed switch includes a second LAN interface connected to the first LAN interface via a second Ethernet cable, for receiving the video image data.

[0011] Optionally, the managed switch includes a third local area network interface, which is connected to the monitoring computer via a third Ethernet cable or an optical fiber communication module, and is used to forward the video image data to the monitoring computer.

[0012] Optionally, the video acquisition unit includes an image sensor, a digital-to-analog converter and an encoder, the digital-to-analog converter is electrically connected to the image sensor and the encoder respectively, and the monitoring computer includes monitoring software, and the monitoring software is electrically connected to the encoder.

[0013] Optionally, the video acquisition unit is an Ethernet powered network camera.

[0014] Optionally, the Ethernet power supply switch is a gigabit switch.

[0015] Optionally, the managed switch includes a three-layer switch, and the three-layer switch is a gigabit switch.

[0016] By applying the technical solution of the present application, a video surveillance system may include a monitoring computer, multiple video acquisition units, at least two Ethernet power supply switches and a network management switch, wherein the monitoring computer may be used as a video monitoring unit, coupled to multiple target objects, so as to monitor the working status of the multiple target objects, the multiple video acquisition units may be arranged near the multiple target objects, so as to obtain video image data of the multiple target objects, the video image data may be used to characterize the working status of the multiple target objects, and the multiple video acquisition units correspond to the multiple target objects one by one, that is, each video acquisition unit may obtain video image data of a corresponding target object, each Ethernet switch of the at least two Ethernet power supply switches may be communicatively connected with at least two video acquisition units of the multiple video acquisition units, that is, when the Ethernet switch supplies power to the video acquisition units, each Ethernet switch may obtain video image data of at least two target objects and forward video image data of at least two target objects, and the network management switch may be communicatively connected with the monitoring computer and the at least two Ethernet switches respectively, so that the network management switch may receive video image data of at least two target objects forwarded by any one of the communicatively connected Ethernet switches, and forward all received video image data to the monitoring computer. Therefore, through the present application, real-time monitoring of the working status of the target object can be achieved, thereby ensuring the operational safety of the target object. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting part of the present application are used to provide a further understanding of the present application. The exemplary embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0018] Figure 1 A schematic structural diagram of a video surveillance system according to an embodiment of the present application is shown.

[0019] The above drawings include the following reference numerals:

[0020] 1. Video acquisition unit; 2. Ethernet power supply switch; 3. Network management switch; 4. Monitoring computer. DETAILED DESCRIPTION

[0021] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0022] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0023] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0024] As introduced in the background technology, in order to further reduce the workload of substation operation and improve the unmanned capability of the power system, it is hoped that the frequently operated 10kV and 20kV systems can achieve complete power outage work without "man" on site, and the circuit breaker operation trolley and grounding switch can be operated by remote electric operation. After the substation is unmanned, although the circuit breaker, circuit breaker trolley and grounding knife switch can be remotely controlled by the remote control center, the complete power outage work can be achieved without "man" on site, but for the safety of operation, during and after the operation, the operation results still need to be checked, and the check may include: whether the circuit breaker has been opened or closed, whether the circuit breaker trolley has run to the working position or the test position, whether the grounding knife switch has been opened or closed, whether the knife switch contacts are in close contact, whether an arc is generated during the operation, etc., thereby introducing new technical problems. In order to solve the problem that it is difficult to determine whether the switch cabinet operation is safe in the prior art, the embodiment of the present application provides a video monitoring system.

[0025] The utility model provides a video monitoring system, such as Figure 1As shown, it includes: a monitoring computer 4, coupled with multiple target objects, for monitoring the working status of the multiple target objects; multiple video acquisition units 1, for acquiring video image data of the multiple target objects, and the multiple video acquisition units 1 correspond to the multiple target objects one by one; at least two Ethernet power supply switches 2, each Ethernet power supply switch 2 is communicatively connected with at least two video acquisition units 1, for supplying power to the video acquisition units 1, and forwarding the video image data of the video acquisition units 1; a network management switch 3, respectively communicatively connected with the monitoring computer 4 and at least two Ethernet power supply switches 2, for receiving the video image data forwarded by the Ethernet power supply switches 2, and forwarding it to the monitoring computer 4.

[0026] Specifically, the target object may be a circuit breaker, a circuit breaker trolley or an earthing switch. Furthermore, the working status may be whether the circuit breaker is opened or closed, whether the circuit breaker trolley has run to the working position or the test position, whether the earthing switch is opened or closed, whether the switch contacts are in tight contact, whether an arc is generated during operation, etc.

[0027] Specifically, the video image data of the circuit breaker acquired by the video acquisition unit 1 can be used to characterize that the circuit breaker is in an opened state or that the circuit breaker is in a closed state; the video image data of the circuit breaker trolley acquired by the video acquisition unit 1 can be used to characterize that the circuit breaker trolley runs to a working position or that the circuit breaker trolley runs to a test position; the video image data of the grounding switch acquired by the video acquisition unit can be used to characterize that the grounding switch is in an opened state, that the grounding switch is in a closed state, that the grounding switch contacts are in close contact, or that the grounding switch contacts are not in close contact, etc.

[0028] Specifically, each Ethernet power supply switch 2 is communicatively connected to at least two video acquisition units 1, so that the video surveillance system may include two Ethernet power supply switches 2, and when each Ethernet power supply switch is communicatively connected to two video acquisition units 1, the number of video acquisition units 1 in the video surveillance system may be four. It should be noted that the video surveillance system of the present application may include but is not limited to two Ethernet power supply switches 2, that is, the number of Ethernet power supply switches 2 may be three, four or more, and the number of video acquisition units 1 that each Ethernet power supply switch 2 can be communicatively connected to may include but is not limited to two, three, four or more.

[0029] Specifically, in the case where two Ethernet power supply switches 2 are included, and each Ethernet power supply switch 2 is communicatively connected to two video acquisition units 1, the network-managed switch 3 in the present application can be communicatively connected to the above two Ethernet power supply switches 2 and the monitoring computer 4, so that the network-managed switch 3 can receive the video image data of the above four video acquisition units 1, and forward the video image data acquired by the above four video acquisition units 1 to the monitoring computer 4. It should be noted that the number of Ethernet power supply switches 2 communicatively connected to the network-managed switch 3 of the present application may include but is not limited to two, three, four or more, so that the utility model can have good scalability and can have no restrictions on the video acquisition units 1 connected to the video surveillance system, so that when the video surveillance system is applied to the power substation network, the regional centralized operation and monitoring of the entire power substation network can be realized, thereby greatly reducing the burden on personnel and resource allocation.

[0030] In the above implementation mode, if Figure 1 As shown, the video surveillance system may include a monitoring computer 4, multiple video acquisition units 1, at least two Ethernet power supply switches 2 and a network management switch 3, wherein the monitoring computer 4 can be used as a video monitoring unit, coupled with multiple target objects, so as to monitor the working status of the multiple target objects, the multiple video acquisition units 1 can be set near the multiple target objects, so as to obtain video image data of the multiple target objects, and the video image data can be used to characterize the working status of the multiple target objects, and the multiple video acquisition units 1 correspond to the multiple target objects one by one, that is, each video acquisition unit 1 can obtain video image data of a corresponding target object, each Ethernet switch in the at least two Ethernet power supply switches 2 can be communicatively connected with at least two video acquisition units 1 in the multiple video acquisition units 1, that is, when the Ethernet switch supplies power to the video acquisition unit 1, each Ethernet switch can obtain video image data of at least two target objects and forward video image data of at least two target objects, and the network management switch 3 is communicatively connected with the monitoring computer 4 and the at least two Ethernet switches respectively, so that the network management switch 3 can receive video image data of at least two target objects forwarded by any one of the communication-connected Ethernet switches, and forward all received video image data to the monitoring computer 4. Therefore, through the present application, real-time monitoring of the working status of the target object can be achieved, thereby ensuring the operational safety of the target object.

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0032] In some optional embodiments, the video surveillance system of the present application can be used to monitor various components in the switch cabinet. Specifically, the components in the switch cabinet may include a circuit breaker and a grounding switch, so that the video surveillance system also includes a circuit breaker and a grounding switch, and the video acquisition unit 1 is used to monitor the circuit breaker and the grounding switch.

[0033] In order to protect the switch equipment, prevent damage to the switch equipment due to factors such as pollution, impact or high temperature, and improve the stability and security of the network, in some optional implementations, the video surveillance system also includes: a cabinet, in which the Ethernet power supply switch 2 and the managed switch 3 are installed.

[0034] like Figure 1 As shown, since the Ethernet power supply switch 2 needs to be communicated with the video acquisition unit 1 and enables the video acquisition unit 1 to acquire video image data based on the power supply of the Ethernet switch, in some optional implementations, the Ethernet power supply switch 2 may include an Ethernet power supply port, which is connected to the video acquisition unit 1 via a first Ethernet cable, for powering the video acquisition unit 1; and since the Ethernet power supply switch 2 also needs to be communicated with the managed switch 3 and enables the managed switch 3 to receive video image data, the Ethernet power supply switch may also include a first LAN interface, so that the first LAN interface is connected to the managed switch 3 via a second Ethernet cable, for forwarding the video image data to the managed switch 3.

[0035] Similarly, since the Ethernet power supply switch 2 can use a second Ethernet cable to connect to the managed switch 3, in some optional implementations, the managed switch 3 can include a second LAN interface, which is connected to the first LAN interface via the second Ethernet cable for receiving video image data.

[0036] Furthermore, the managed switch 3 may include a third local area network interface, wherein, in some optional embodiments, the managed switch 3 may be connected to the monitoring computer 4 via a third Ethernet cable to forward the video image data to the monitoring computer 4; or in other optional embodiments, the managed switch 3 may be connected to the monitoring computer 4 via a fiber optic communication module, thereby forwarding the video image data to the monitoring computer 4 via the fiber optic communication module.

[0037] Exemplarily, in some optional embodiments, the video acquisition unit 1 may include an image sensor, an analog-to-digital converter and an encoder, wherein the analog-to-digital converter is electrically connected to the image sensor and the encoder, respectively, wherein the image sensor may be used to convert the acquired image signal into an analog electrical signal, and then since the image sensor is electrically connected to the analog-to-digital converter, the analog-to-digital converter can convert the analog electrical signal of the image sensor into a digital electrical signal, and then since the analog-to-digital converter is electrically connected to the encoder, the digital electrical signal can be encoded and compressed by the encoder according to a certain encoding standard to obtain video encoding data. It can be understood that the video encoding data after encoding and compression includes the video image data.

[0038] Optionally, the monitoring computer 4 includes monitoring software, which is electrically connected to the encoder, that is, the monitoring software can decode the video encoding data after encoding and compression, thereby restoring the video encoding data to a high-definition video image. Optionally, when the above-mentioned video monitoring system is applied to the switch cabinet, the monitoring software can also integrate the video image with remote remote control operation, switch cabinet signal acquisition and display, etc., to realize centralized and intelligent operation, status indication and video monitoring of all switch cabinets.

[0039] Optionally, the video acquisition unit 1 may also include a lens, a sound sensor, an image controller, a sound controller, and a network server, and the lens is connected to the image sensor, and the image controller may be connected to the encoder and the network server respectively, so that under the control of the image controller, the network server sends the video encoding data to the local area network or the Internet according to a certain network protocol, and then forwarded by the Ethernet switch. Similarly, the sound controller may be connected to the sound sensor and the sound controller, and the sound controller may be connected to the network server.

[0040] In some optional embodiments, the video acquisition unit 1 can be an Ethernet-powered network camera. For example, the Ethernet-powered network camera can adopt a 4-megapixel conch infrared hemispherical network monitoring poe camera, which has the characteristics of good low-light effect, high image clarity, support for H.265 encoding, high encoding compression ratio, high-efficiency infrared fill light, strong light suppression and backlight compensation.

[0041] In some optional embodiments, the Ethernet power supply switch 2 can be a gigabit switch. For example, the Ethernet power supply switch 2 can adopt a full gigabit cloud-managed PoE switch, so that the network camera can be powered by PoE power supply, wherein PoE power supply is achieved through an Ethernet cable, and the Ethernet cable is composed of four pairs of twisted pair cables (8 core wires). Therefore, the eight core wires in the Ethernet cable are the medium for the PoE switch to provide data and power transmission for the video acquisition unit 1; and the full gigabit cloud-managed PoE switch can adopt high-performance hardware and software platforms, provide flexible and cost-effective full gigabit ports, support common functions such as 802.1Q VLAN, port monitoring, port aggregation, QoS, etc., can connect to multiple video acquisition units 1, and aggregate the port data of the video acquisition unit 1 to the monitoring port (first LAN interface), so that the monitoring port (first LAN interface) is connected to the network management switch 3 through the second Ethernet cable.

[0042] In some optional implementations, the managed switch 3 may include a layer 3 switch, and the layer 3 switch is a gigabit switch. For example, the managed switch 3 may be a full gigabit layer 3 managed switch, which may have multiple RJ45 network ports and two SFP fiber ports, and may realize data exchange between the local monitoring computer 4 and the remote monitoring computer 4 and the video acquisition unit 1; in addition, since the most important purpose of the full gigabit layer 3 managed switch is to speed up data exchange within a large local area network, the routing function it has also serves this purpose, and can achieve one-time routing. , multiple forwarding, and the regular process of data packet forwarding is realized by hardware at high speed, while functions such as routing information update, routing table maintenance, routing calculation and routing determination are realized by software, and the three-layer switching technology it has is the two-layer switching technology + the three-layer forwarding technology. Compared with the traditional switching technology, which operates at the second layer of the OSI network standard model - the data link layer, the three-layer switching technology realizes the high-speed forwarding of data packets at the third layer in the network model, which can realize the network routing function and achieve the optimal network performance according to different network conditions, greatly improving the speed and security of data exchange. Optionally, the full gigabit three-layer network management switch can be connected to the monitoring computer 4 through a third Ethernet cable or an optical fiber communication module.

[0043] From the above description, it can be seen that the above embodiments of the present application achieve the following technical effects:

[0044] In the above-mentioned embodiment of the present application, the video surveillance system may include a monitoring computer, multiple video acquisition units, at least two Ethernet power supply switches and a network management switch, wherein the above-mentioned monitoring computer can be used as a video monitoring unit, coupled with multiple target objects, so as to monitor the working status of the multiple target objects, the above-mentioned multiple video acquisition units can be arranged near the multiple target objects, so as to obtain video image data of the multiple target objects, and the video image data can be used to characterize the working status of the above-mentioned multiple target objects, and the above-mentioned multiple video acquisition units correspond to the multiple target objects one by one, that is, each video acquisition unit can obtain video image data of a corresponding target object, each Ethernet switch of the above-mentioned at least two Ethernet power supply switches can be communicatively connected with at least two video acquisition units of the multiple video acquisition units, that is, when the Ethernet switch supplies power to the video acquisition unit, each Ethernet switch can obtain video image data of at least two target objects and forward video image data of at least two target objects, and the above-mentioned network management switch is communicatively connected with the monitoring computer and the at least two Ethernet switches respectively, so that the network management switch can receive video image data of at least two target objects forwarded by any one of the communication-connected Ethernet switches, and forward all received video image data to the monitoring computer. Therefore, through the present application, real-time monitoring of the working status of the target object can be achieved, thereby ensuring the operational safety of the target object.

[0045] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A video surveillance system, It is characterized in that include: A monitoring computer, coupled to the plurality of target objects, for monitoring the working status of the plurality of target objects; A plurality of video acquisition units, used for acquiring video image data of a plurality of target objects, wherein the plurality of video acquisition units correspond one to one with the plurality of target objects; At least two Ethernet power supply switches, each of which is in communication connection with at least two of the video acquisition units, and is used to supply power to the video acquisition units and forward the video image data of the video acquisition units; A network management switch, respectively connected to the monitoring computer and the at least two Ethernet power supply switches, for receiving the video image data forwarded by the Ethernet power supply switch and forwarding it to the monitoring computer; The video acquisition unit includes an image sensor, a digital-to-analog converter and an encoder. The digital-to-analog converter is electrically connected to the image sensor and the encoder respectively. The monitoring computer includes monitoring software, and the monitoring software is electrically connected to the encoder.

2. The video surveillance system according to claim 1, It is characterized in that The video monitoring system also includes a circuit breaker and a grounding switch, and the video acquisition unit is used to monitor the circuit breaker and the grounding switch.

3. The video surveillance system according to claim 1, It is characterized in that The video surveillance system also includes: A cabinet, in which the Ethernet power supply switch and the managed switch are installed.

4. The video surveillance system according to claim 1, It is characterized in that The Ethernet power supply switch comprises: An Ethernet power supply port, connected to the video acquisition unit via a first Ethernet cable, and used to power the video acquisition unit; The first LAN interface is connected to the managed switch via a second Ethernet cable and is used to forward the video image data to the managed switch.

5. The video surveillance system according to claim 4, It is characterized in that The managed switch includes a second LAN interface, which is connected to the first LAN interface via the second Ethernet cable and is used to receive the video image data.

6. The video surveillance system according to claim 4, It is characterized in that The network management switch includes a third local area network interface, which is connected to the monitoring computer via a third Ethernet cable or an optical fiber communication module and is used to forward the video image data to the monitoring computer.

7. The video surveillance system according to any one of claims 1 to 6, It is characterized in that The video acquisition unit is an Ethernet powered network camera.

8. The video surveillance system according to any one of claims 1 to 6, It is characterized in that The Ethernet power supply switch is a gigabit switch.

9. The video surveillance system according to any one of claims 1 to 6, It is characterized in that The managed switch includes a three-layer switch, and the three-layer switch is a gigabit switch.

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