Highway power supply and distribution operation safety data collection device

Abstract

The utility model relates to the technical field of information collection devices, and in particular to a safety collection device for power supply and distribution operation of a highway, including a front-end information collection device, a back-end, and a front-end control device, wherein the front-end information collection device, the back-end, and the front-end control device are electrically connected in sequence via a communication module. Through the intelligent electric meter and on-site monitoring in the front-end information collection device, it is possible to obtain the operating status (normal / load) of each device in the substation and the actual conditions in the plant area, and send the obtained information to the PLC controller, which remotely sends data to the back-end through the communication module. Technicians can query the collected data from the back-end, and control and monitor the front-end device according to the collected data. In addition, the location where the accident occurred can be marked according to the GPS positioning system, and the background can accurately obtain the accident location, so that technicians can quickly locate the accident location, so as to quickly rush to the scene and improve time processing efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of information collection devices, in particular to a safety collection device for power supply and distribution operation on expressways. Background Art

[0002] The electromechanical system of highways is divided into six major systems, namely, monitoring system, communication system, toll collection system, low-voltage power supply and distribution system, lighting system, and tunnel electromechanical engineering system. Among them, the power supply and distribution system of highways is an independent system that serves the other systems to ensure the normal operation of the entire electromechanical system. It generally adopts centralized or relatively centralized power supply. The power used is 10kV or 35kV high voltage from the power plant or the high-voltage power grid in the nearby area and sent to the substation of the highway itself. The step-down transformer is used to generate a 220V / 380V power supply voltage, which is then sent to the relevant power equipment by the low-voltage distribution panel and transmission line. The normal operation of the distribution system is the basis for ensuring the normal operation of the electromechanical system of highways. Therefore, technicians are required to monitor the status of the equipment in the substation in real time through monitors, and can promptly detect abnormal conditions of equipment or transmission lines, such as leakage or fire. However, this brings a greater labor burden to technicians, and technicians cannot always stare at the display screen or conduct on-site inspections.

[0003] To this end, the utility model provides a highway power supply and distribution operation safety collection device, provides a real-time monitoring and early warning positioning system for substation equipment operation, and reduces the inspection and monitoring burden. Utility Model Content

[0004] The utility model aims to solve the problems existing in the prior art and proposes a safety data collection device for power supply and distribution operation of a highway.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The highway power supply and distribution operation safety collection device includes a front-end information collection device, a back-end, and a front-end control device, and the front-end information collection device, the back-end, and the front-end control device are electrically connected in sequence via a communication module;

[0007] The front-end information collection device includes a smart meter and on-site monitoring, which is used to monitor the output current and voltage of the power line and the operating status of the equipment in real time;

[0008] The backend is used to receive information from the front-end information collection device and send operation instructions to the front-end operation device;

[0009] The front-end operating device can handle fire or leakage accidents according to the back-end instructions, and can ensure the normal use of the equipment under the condition of leakage of the transmission line.

[0010] Preferably, a leakage protector is provided between the two electrically connected devices and can still operate in the event of a leakage in the transmission line. The leakage protector comprises two transmission lines erected between the two electrically connected devices, and both devices are provided with bidirectional isolating switches cooperating with the two transmission lines.

[0011] Preferably, each of the transmission lines is connected to a grounding wire via a single-control isolating switch.

[0012] Preferably, the on-site monitoring includes an ultraviolet imager for monitoring leakage and a high-definition camera for on-site conditions.

[0013] Preferably, the ultraviolet imager and the high-definition camera are both installed on a pan-tilt platform.

[0014] Preferably, the smart meter is fully electronic.

[0015] Compared with the prior art, the utility model provides a highway power supply and distribution operation safety collection device, which has the following beneficial effects:

[0016] Through smart meters and on-site monitoring, the operating status (normal / load) of each device in the substation and the actual situation in the plant can be obtained, and the obtained information can be sent to the PLC controller, which remotely sends data to the background through the communication module. Technicians can query the collected data from the background and control and monitor the front-end devices based on the collected data. In addition, the location of the accident can be marked according to the GPS positioning system, and the background can accurately obtain the accident location, so that technicians can quickly locate the accident location and rush to the scene quickly, improving time processing efficiency.

[0017] Other advantages, objectives and features of the present invention will be described in the following description to some extent; and will be apparent to those skilled in the art based on the following examination and study to some extent; or, may be taught from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure connection of the utility model.

[0019] Figure 2 It is a schematic diagram of the operation of the equipment of the present utility model.

[0020] Figure 3 This is a schematic diagram of the system regionalization of the utility model.

[0021] Figure 4 It is a simplified schematic diagram of the leakage protection for transmission lines of the utility model.

[0022] In the figure: 1. Background; 2. Communication module; 3. PLC controller; 4. Smart meter; 5. On-site monitoring; 6. UV imager; 7. High-definition camera. DETAILED DESCRIPTION

[0023] The following will be combined with the attached embodiment of the present utility model Figure 1-4 , the technical solutions in the embodiments of the utility model are described clearly and completely. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0024] In order to solve the problems existing in the prior art, the present embodiment provides a highway power supply and distribution operation safety collection device, including a front-end information collection device, a background 1, and a front-end control device. The front-end information collection device, the background 1, and the front-end control device are electrically connected to the communication module 2 via serial port communication in sequence.

[0025] The front-end information collection device includes a smart meter 4 and a field monitoring 5: the main transmission line of the substation and the output end of each main device are electrically connected to a smart meter 4 (high and low voltage substation equipment), which is used to monitor the output current and voltage of each device and transmission line of the substation in real time; the field monitoring 5 is evenly distributed in the substation, and photography is used to monitor the operating status of each device on site in real time;

[0026] The backend 1 is arranged in the monitoring room and is used to receive information from the front-end information collection device and send operation instructions to the front-end operation device;

[0027] The front-end operating device includes fire hoses and power transmission line leakage protectors evenly distributed in the substation, which can handle fire or leakage accidents according to the instructions of the background 1 and ensure the normal use of the equipment under the condition of power transmission line leakage.

[0028] This solution can obtain the operating status (normal / load) of each device in the substation and the actual situation in the plant area through the smart meter 4 and the on-site monitoring 5, and send the acquired information to the PLC controller 3, and the PLC controller 3 remotely sends data to the background 1 through the communication module 2. The technician can query the collected data from the background 1, and control and monitor the front-end device based on the collected data; and the smart meter 4 will warn the overloaded equipment and transmission lines for subsequent processing. When there is a problem with the operation of the equipment, the circuit is powered off and protected by components such as circuit breakers. If leakage occurs, the situation is sent to the background 1 through the on-site monitoring 5, and the background 1 can remotely control the transmission line leakage protector to disconnect, so that the leakage transmission line is powered off to avoid the high-voltage electric field from causing harm to nearby technicians. If a fire occurs, the background 1 can remotely control the fire water cannon to remotely extinguish the fire after obtaining information based on the on-site monitoring 5.

[0029] Through this solution, not only can the operation status of each device in the substation be understood more clearly, but also problems can be fed back in time, and unexpected conditions on the site can be handled remotely, which greatly reduces the inspection and handling burden of the inspection personnel and improves the efficiency of accident handling. In addition, the location of the accident can be marked according to the GPS positioning system, and the background 1 can accurately obtain the accident location, so that the technician can quickly locate the accident location and rush to the scene quickly, improving the time processing efficiency.

[0030] In a further embodiment of the present scheme, in order to prevent the main equipment of the substation, such as transformers, distribution cabinets and other equipment, from closing due to leakage of the transmission line due to aging and other problems during operation, thereby affecting the operation of the entire circuit, a simple transmission line leakage protector is provided in this embodiment, so that the transmission line between two electrically connected devices can still operate normally when the leakage is disconnected. Figure 4 As shown, the transmission line leakage protector includes two transmission lines erected between two electrically connected devices. Both devices are provided with bidirectional isolating switches cooperating with the two transmission lines. When the bidirectional isolating switches are electrically connected to the same transmission line, the two devices are electrically connected. When leakage occurs in a transmission line, the bidirectional isolating switches on the two devices change the connection port, that is, the transmission line is changed. Compared with the traditional single electrical connection, this solution sets a double-line alternating connection to improve the ability to respond to accidents and the fault tolerance rate, avoid the problem of shutdown due to leakage, and enable the equipment to continue to operate without affecting the operation of the entire information collection system.

[0031] In a further embodiment of this solution, each of the transmission lines is connected to a grounding wire via a single-control isolating switch, and Figure 4 As shown, the transmission line electrically connected to the bidirectional isolating switch is separated from the single-control isolating switch, that is, not grounded, while the other line is grounded. In other words, when the transmission line in use leaks and the transmission line is changed, the leaking transmission line is grounded, so that the residual or accumulated electric energy in the transmission line is quickly released to avoid the formation of a leakage high-voltage electric field.

[0032] In a further embodiment of the present scheme, the on-site monitoring 5 includes an ultraviolet imager 6 and a high-definition camera 7. The ultraviolet imager 6 can clearly record arc and corona conditions on transmission lines and equipment, thereby improving the accuracy of monitoring leakage conditions; the high-definition camera 7 can perform real-time monitoring of the substation site.

[0033] In a further embodiment of the present scheme, the ultraviolet imager 6 and the high-definition camera 7 are both installed on a pan-tilt platform, and the imaging angles of the ultraviolet imager 6 and the high-definition camera 7 can be remotely controlled through the pan-tilt platform, making monitoring imaging more flexible and practical.

[0034] In a further embodiment of the present scheme, the smart meter 4 is fully electronic, and real-time sampling of the equipment power supply voltage and current is performed, and a dedicated electric energy meter integrated circuit is used to process the sampled voltage and current signals and multiply them to convert them into a pulse output display proportional to the electric energy, so that monitoring is more accurate and display viewing is more convenient.

[0035] In a further embodiment of the present scheme, the substation is regarded as a whole and then divided into areas. Each area is provided with a sub-server, i.e., a sub-port. The equipment operating status in each area is first sent to the sub-port, which is then transmitted to the main server and distributed step by step, thereby reducing the monitoring pressure on the main server and the monitoring room.

[0036] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

[0037] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0038] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. Highway power supply and distribution operation safety data collection device, characterized in that: It comprises a front-end information collection device, a back-end (1), and a front-end control device, wherein the front-end information collection device, the back-end (1), and the front-end control device are electrically connected in sequence via a communication module (2); The front-end information collection device includes a field monitor (5) and a smart meter (4), which is used to monitor the output current and voltage of the power line and the operating status of the equipment in real time; The backend (1) is used to receive information from the front-end information collection device and send operation instructions to the front-end operation device; The front-end operating device can handle fire or leakage accidents according to the instructions of the back-end (1), and can ensure the normal use of the equipment under the condition of leakage of the transmission line; A leakage protector is provided between two electrically connected devices and can still operate in the event of leakage in the transmission line. The leakage protector includes two transmission lines erected between the two electrically connected devices, and both devices are provided with bidirectional isolating switches that cooperate with the two transmission lines; Each of the transmission lines is connected to a grounding wire via a single-control isolating switch.

2. The highway power supply and distribution operation safety data collection device according to claim 1 is characterized in that: The on-site monitoring (5) includes an ultraviolet imager (6) for monitoring leakage and a high-definition camera (7) for on-site conditions.

3. The highway power supply and distribution operation safety data collection device according to claim 2 is characterized in that: The ultraviolet imager (6) and the high-definition camera (7) are both installed on the pan-tilt platform.

4. The highway power supply and distribution operation safety data collection device according to claim 1 is characterized in that: The smart electric meter (4) is fully electronic.

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