TECHNICAL FIELD

The present disclosure relates to the field of substation monitoring technologies, and in particular to an auxiliary monitoring system for a traction substation.

BACKGROUND

With the rapid development of China's urbanization and economic construction, passenger lines, high-speed railroads, and urban rail transit have entered a new stage of historical development. At present, China's railroad technology and device level and management level is rapidly improving, and the line passenger trains have made the leap from regular speed to high speed. In the background of the rapid development of China's railroads in the direction of “high-speed and heavy-duty”, in order to further meet the needs of high-density passenger flow in large urban clusters, the operation and maintenance level of existing railroads has put forward higher requirements, and high-speed railroads, passenger lines and urban rail transit letters need to enter the fast track of historical development. The basic task of rail transportation is to transport passengers and goods to the destination safely and accurately and on time, and a reliable traction power supply system shall be applied to ensure the safe and smooth operation of locomotives or trains.

The safe and reliable operation of the traction power supply system is a prerequisite for the safety and punctuality of rail transportation, and a traction substation, as an important component of the traction power supply system, is receiving increasing attention. In the face of China's railroad speed increase and the high requirements of railroad safety, the requirements for the existing traction substation monitoring system are getting higher and higher. Therefore, the decisive role of traction power supply system on the safety of electric traction trains is becoming more and more prominent. The existing “unmanned and unattended” operation and management mode is being used more and more widely with its high efficiency and stability, and the standard of safety monitoring system is getting higher and higher. The existing research shows that the unmanned management mode of traction substation and the existing safety monitoring system can no longer match, and a modern intelligent monitoring system is urgently needed to realize the automated management of railroad traction substation.

At present, there are still many problems in the railroad traction substation monitoring system. The problems are mainly focused on: the lack of integrated information platform in the system network, which cannot meet the modern substation's hierarchical and coordinated control of power grid resources; the low data utilization of each monitoring sensor in the system, and the lack of screening and discriminating information and cross-referencing between information to achieve all-round safety monitoring of the traction substation. In the face of the urgent need for intelligent power grid construction and the increasing demand for intelligent monitoring level, there is an urgent need to design a digital monitoring system that can adapt to the traction power supply system in order to realize all-round monitoring of the traction power supply system.

SUMMARY OF THE DISCLOSURE

To solve the above technical problems, the present disclosure provides an auxiliary monitoring system for a traction substation, wherein the video monitoring system is configured to collect a video data stream in real time, to realize video monitoring in the traction substation; the device inspection system is configured to collect and upload an image of each electrical device along a line; the voice communication system is configured to realize a voice call between an inspection staff and a back-end monitoring staff; the environmental monitoring system is configured to monitor a temperature, a humidity, and a water intake in the traction substation and each electrical device; the fire alarm system is configured to monitor a fire in the traction substation in real time and provide corresponding alarm information; the sulfur hexafluoride gas monitoring system is configured to monitor a sulfur hexafluoride gas leakage in an electrical device; the security prevention system is configured to collect alarm information such as access control and electronic fence in the traction substation, to prevent an intrusion of other foreign personnel or large animals; the power lighting monitoring system is configured to collect operation information of a power lighting device such as a lighting controller, a water pump, a fan, etc.; the power monitoring system is configured to monitor an input current and voltage and an output current and voltage of the traction substation in real time. In this way, all-round safety monitoring of traction substation may be realized, improving the safe operation of traction substation. The information monitored by traction substation is transmitted to railroad dispatching center through 5G communication technology to realize information sharing.

In order to achieve the above purpose, the present disclosure provides an auxiliary monitoring system for a traction substation:

An auxiliary monitoring system for a traction substation, including: a video monitoring system, a device inspection system, a voice communication system, an environmental monitoring system, a fire alarm system, a sulfur hexafluoride gas monitoring system, a safety prevention system, a power lighting monitoring system, a power monitoring system, a control box, and a 5G controller; wherein the video monitoring system is configured to collect a video data stream in real time, to realize video monitoring in the traction substation; the device inspection system is configured to collect and upload an image of each electrical device along a line; the voice communication system is configured to realize a voice call between an inspection staff and a back-end monitoring staff; the environmental monitoring system is configured to monitor a temperature, a humidity, and a water intake in the traction substation and each electrical device; the fire alarm system is configured to monitor a fire in the traction substation in real time and provide corresponding alarm information; the sulfur hexafluoride gas monitoring system is configured to monitor a sulfur hexafluoride gas leakage in an electrical device; the security prevention system is configured to collect alarm information such as access control and electronic fence in the traction substation, to prevent an intrusion of other foreign personnel or large animals; the power lighting monitoring system is configured to collect operation information of a power lighting device such as a lighting controller, a water pump, and a fan; the power monitoring system is configured to monitor an input current and voltage and an output current and voltage of the traction substation in real time; the video monitoring system, the device inspection system, the voice communication system, the environmental monitoring system, the fire alarm system, the sulfur hexafluoride gas monitoring system, the security system, the power lighting monitoring system, and the power monitoring system each transmits collected information to the control box; the information is processed and calculated by the control box and transmitted to a traction substation monitoring center; the 5G controller is controlled to transmit a processed result to a railroad dispatching center monitoring station.

In some embodiments, the control box is arranged with a first Wi-Fi module and a microcontroller system;

In some embodiments, the video monitoring system uses an existing camera in the traction substation for video monitoring of each area and transmit the video to the control box through optical fiber. The first Wi-Fi module in the control box transmits the video to the traction substation monitoring center, and the video is transmitted to the dispatching center monitoring station through the 5G controller.

In some embodiments, the device inspection system includes a tracer robot, a high definition (HD) camera, a second Wi-Fi module, a wireless energy receiver, a reader-writer, charging stations, and patrol points; wherein the second Wi-Fi module is arranged in the tracer robot to establish a wireless communication relationship with the first Wi-Fi module; the wireless energy receiver and the reader-writer are arranged at a bottom of the tracer robot, and the tracer robot is planned to follow a tracer route in the traction substation; one of the charging station is arranged at a starting point of the tracer route, and the other of the charging station is arranged at an end point of the tracer route; the patrol points are each arranged next to a corresponding device; when the tracer robot is at one of the charging stations, the one of the charging stations sends electrical energy to the wireless energy receiver to realize wireless charging of the tracer robot; when the tracer robot reaches one of the patrol points, the tracer robot is configure to stop and take a picture of a corresponding electric device at the one of the patrol points, and send the picture to the first Wi-Fi module in the control box through the second Wi-Fi module; the picture is transmitted to the traction substation monitoring center through an optical fiber; when the tracer robot reaches the end point, the tracer robot is configure to stop at the end point for charging, and waits for another inspection requirement; when the tracer robot receives another inspection requirement, the tracer robot is configure to move from the end point to the starting point again, thereby guaranteeing an uninterrupted power supply to the tracer robot.

In some embodiments, each of the charging stations includes a transponder and a radio energy transmitter; the charging station is arranged with the transponder, and after the tracer robot reaches the starting point or the end point, the reader-writer is capable of identifying the transponder; in response to identifying the transponder, the tracer robot is configured to stop running, and the electrical energy is transmitted from the radio energy transmitter to the radio energy receiver, thereby realizing the power supply to the tracer robot.

In some embodiments, each patrol point is arranged with the transponder, every time the robot identifies a transponder, it indicates that it is next to the device that needs to be inspected, at which point the HD camera on the robot starts image acquisition of the electrical device.

In some embodiments, a scheme of the tracer robot to identify the starting point, the end point, and the patrol points is: the tracer route is set up in the tracer robot, including setting the number of the patrol points, the starting point, and the end point; the transponders are arranged at the starting point, the patrol points, and the end point; a current location of the tracer robot is determined by calculating the number of the transponders; the tracer robot is placed at the starting point for charging, and when an inspection is required, the tracer robot is configured to start moving along the set tracer route; when the tracer robot reaches a first patrol point, the tracer robot is configured to start the HD camera to take a picture of a corresponding electrical device at the first patrol point and upload the picture to the traction substation monitoring center; after the picture is uploaded, the tracer robot is configured to move to a next patrol point to take another picture; after all the patrol points are completely passed, the tracer robot determines that the inspection is over; the tracer robot reaches the end point by moving to a next one of the transponders, while getting charged at the end point; when a second inspection is to be carried out, the end point is taken as another starting point and the second inspection is carried out by the tracer robot moving in a reverse direction.

In some embodiments, the voice communication system includes a microphone and a loudspeaker. The microphones and the loudspeakers are arranged next to each electrical device in the traction substation monitoring center. When the inspection staff inspects the devices of the traction substation on site, he or she may communicate with the traction substation monitoring center by voice through the microphone and loudspeaker.

In some embodiments, the environmental monitoring system includes a temperature sensor, a humidity sensor, and a flood sensor; each electrical device is arranged with the temperature sensor, the humidity sensor, and the flood sensor; the flood sensor is arranged at a bottom of a corresponding electrical device; the temperature sensor and the humidity sensor are configured to detect the temperature and the humidity in the corresponding electrical device; the flood sensor is configured to detect whether the corresponding electric device is flooded; another temperature sensor, another humidity sensor, and another flood sensor are arranged in a key area of the traction substation to detect a temperature, a humidity and water content information in the traction substation; information detected by the temperature sensor, the humidity sensor, and the flood sensor is transmitted to the microcontroller system in the control box for analysis and processing.

In some embodiments, the fire alarm system includes a fire detector and a sound and light alarm; the fire detector and the sound and light alarm are arranged in each electrical device and a key area in the traction substation; the fire detector is configured to monitor an occurrence of fire in the traction substation and each electrical device in real time; in response to a fire occurring, the microcontroller system is configured to control the sound and light alarm to send alarm information, and to send the alarm information to the traction substation monitoring center.

In some embodiments, the sulfur hexafluoride gas monitoring system includes a sulfur hexafluoride gas detector; the sulfur hexafluoride gas detector is arranged in each electrical device containing sulfur hexafluoride, for detecting whether a sulfur hexafluoride gas in a corresponding electrical device is leaking, and transmitting detected information to the microcontroller system for analysis and processing.

In some embodiments, the security prevention system includes an access control system, an infrared triple identification detector, a voice alarm, and a pressure sensor; the access control system is arranged on each main doorway in the traction substation, for controlling to prevent an intrusion of other foreign personnel or large animals; only people who are allowed to pass through an identification of the access control system are capable of using the access control system normally; the pressure sensor is arranged on a glass door frame; when a glass is broken, a force applied by the glass on the pressure sensor changes causing an output of the pressure sensor to change; the infrared triple identification detector and the voice alarm are arranged on an electronic fence of the traction substation; the infrared triple identification detector is configured to detect whether there are people or other large animals approaching the electronic fence; in response to idle people or other large animals approaching, the microcontroller system is configured to control the voice alarm to send out an alarm.

In some embodiments, the power lighting monitoring system includes a first current sensor and a first voltage sensor; the first current sensor and the first voltage sensor are arranged in a power line of each light controller, each water pump, and each fan, for detecting current and voltage changes of a corresponding light controller, water pump, and fan, and transmitting collected information to the microcontroller system; the microcontroller system determines whether the corresponding lighting controller, water pump and fan are running normally according to the current and voltage changes.

In some embodiments, the power monitoring system includes a second current sensor and a second voltage sensor; an incoming line and an outgoing line of each main electrical device are arranged with the second current sensor and the second voltage sensor, for monitoring a current and a voltage of the incoming line and the outgoing line of a corresponding main electrical device, and transmitting collected information to the microcontroller system through an optical fiber.

The 5G controller of the present disclosure transmits other information from the traction substation monitoring center to the railroad dispatching center, and the railroad dispatching center monitoring station can also transmit command information to the traction substation monitoring center through the 5G controller.

As the present disclosure adopts the structure of comprehensive monitoring of the traction substation and transmitting the information monitored by the traction substation to the railroad dispatching center through 5G communication technology, the following beneficial effects can be obtained.

The video monitoring system is configured to collect a video data stream in real time, to realize video monitoring in the traction substation; the device inspection system is configured to collect and upload an image of each electrical device along a line; the voice communication system is configured to realize a voice call between an inspection staff and a back-end monitoring staff; the environmental monitoring system is configured to monitor a temperature, a humidity, and a water intake in the traction substation and each electrical device; the fire alarm system is configured to monitor a fire in the traction substation in real time and provide corresponding alarm information; the sulfur hexafluoride gas monitoring system is configured to monitor a sulfur hexafluoride gas leakage in an electrical device; the security prevention system is configured to collect alarm information such as access control and electronic fence in the traction substation, to prevent an intrusion of other foreign personnel or large animals; the power lighting monitoring system is configured to collect operation information of a power lighting device such as a lighting controller, a water pump, a fan, etc. the power monitoring system is configured to monitor an input current and voltage and an output current and voltage of the traction substation in real time. In this way, all-round safety monitoring of traction substation may be realized, improving the safe operation of traction substation. The information monitored by traction substation is transmitted to railroad dispatching center through 5G communication technology to realize information sharing.

