CN109768620B - Intelligent video linkage method for substation - Google Patents
Intelligent video linkage method for substation Download PDFInfo
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Abstract
The invention discloses an intelligent video linkage method for a substation, which is based on a preset linkage rule set, wherein when an event occurs, a control end of equipment of the event checks whether a trigger condition of a linkage rule associated with the event in the linkage rule set is met; and when the triggering condition of one linkage rule is determined to be met, sending a response identifier indicating a corresponding event in the response table of the linkage rule to the control end of the corresponding equipment in the response table according to the response table of the linkage rule, and sending a control command to the corresponding equipment by each control end receiving the response identifier so as to execute a corresponding response action. The invention has the advantages that an integrated mechanism of video monitoring, isolating switch action, picture snapshot and video recording is realized, and a plurality of isolating switch devices can be linked through the linkage identification and the response identification.
Description
Technical Field
The invention belongs to the technical field of electric power and rail transit, and particularly relates to an intelligent video linkage method for a substation.
Background
At present, after a comprehensive automation system of a transformer substation is transformed, along with the popularization of an operation management mode of an unattended transformer substation, a video monitoring system of the transformer substation with one thousand miles is provided for a manager, so that the remote viewing function of the transformer substation is very necessary, the manager of the transformer substation can master the field operation condition of equipment in the transformer substation in real time according to needs, the field video image of the equipment in the transformer substation is provided for the manager, and potential safety hazards of important equipment are checked. After a substation remote vision system is established, video monitoring data in the substation are collected and coded through video services, then are transmitted to a dispatching center through a data network, and then received video monitoring data are stored and managed by a person on duty in the dispatching center. Therefore, the establishment of the substation remote vision system can better promote the development of the operation and maintenance of the substation to the automation, intensification and intellectualization directions and provide more favorable technical support for realizing unattended operation of the substation. Patent application with publication number CN205911831U discloses an unmanned on duty substation monitored control system based on optic fibre, including fuse array, fuse alarm array, main transformer array and main transformer alarm array, fuse alarm array, main transformer array and main transformer alarm array are respectively through transmission optical fiber and concentrator communication connection, concentrator and control management center communication connection, and control management center passes through wireless communication module and wireless alarm communication connection. The patent application with the publication number of CN207184157U discloses an intelligent monitoring system of transformer substation, including UPS power, data acquisition box, reputation electric alarm, ethernet switch, display, fixed plate, computer, industrial computer and printer, the data acquisition box is installed on UPS power right side, data acquisition box top left side fixed mounting has reputation electric alarm, data acquisition box top right side fixed mounting has the ethernet switch, fixed mounting has the fixed plate in the middle of the data acquisition box right side, the display is installed to fixed plate top rear side, computer is installed on fixed plate below right side, fixed plate right side fixed mounting has the industrial computer.
To sum up, the current traditional substation has the defects and the technical problems that the power protocol is disordered, the equipment expansion performance is poor, and the video images of the substation equipment of the disconnecting switch and the breaker cannot be monitored in real time, so that great difficulty is caused to the work of maintenance personnel, and the work efficiency is greatly reduced.
Disclosure of Invention
The invention aims to provide an intelligent video linkage method for a substation, which can overcome the technical problems, and the method comprises the following steps:
step 1, remotely controlling to transmit remote control information, namely remote control, receiving and executing a remote control command, and remotely controlling remote switch control equipment by opening and closing;
step 1.1, the relay control output module is used for respectively realizing remote switching-off and switching-on of a switch of a low-voltage outlet loop, namely a switch with an electric operating mechanism and a voltage-loss tripper, and the electric power dispatching command center initiates an isolating switch action instruction to carry out remote control through a traction power supply telemechanical system;
and step 1.2, converting a scheduling instruction into a message according to an electric power communication protocol by a main station end, namely a control end, of the telecontrol system, and sending the message to a sub-station end, namely a controlled end, through a communication protocol, wherein the sub-station end controls an output module through a relay to realize remote switching-off and switching-on of a switch.
Step 2, collecting and transmitting various protection and switching value information by remote signaling signals, namely remote signals;
step 2.1, collecting and transmitting protection and switching value information, switching position signals and protection signals, wherein the remote signaling signals adopt a passive contact mode, namely, the input of a certain group of remote signaling signals is the closing or opening of contacts of a pair of relays, the closing or opening of the contacts of the relays are converted into low-level or high-level signals through a remote signaling terminal board, the low-level or high-level signals are sent to a remote signaling (YX) module of a Remote Terminal Unit (RTU), namely, a remote terminal control system of the electric power system, the running state signals of an automatic adjusting device, signals capable of providing the output of the relay mode, accident total signals and main power supply power failure signals of the device, and an initialization frame data command and a total calling command are sent by establishing a communication protocol; after telemechanical data, namely telemetering data, remote signaling data and remote control data, are sent, receiving data from a communication protocol, analyzing the data into message information through a power protocol, and uniformly storing and processing telemechanical system data aiming at the telesignaling data, the telemetering data and the remote viewing data;
step 2.2, after the analysis of the power transformation telecontrol system data, namely telecontrol data is completed, the data are stored in a double-floating-point character format, and are converted and transmitted according to different requirements, namely: respectively converting 0 and 1 of the single-point remote communication data into binary 01 and 10, normally storing the double-point remote communication data, and performing reverse conversion on the single-point remote communication data if necessary to solve the ambiguity problem of the data 0 when the single-point remote communication data is stored and facilitate the distinguishing of data characteristics;
step 2.3, remote signaling signals, namely remote state signals, are equipment state signals of the substation are remotely transmitted to a power dispatching command center, the remote monitoring on state information of alarm conditions, switch positions or valve positions is included, the current state of a switch is remotely tested, if the current state is closed or not, energy is stored, after a remote control instruction is executed, the remote signaling state changes, a substation end initiates displacement remote signaling message transmission, and a main station end receives and analyzes the displacement remote signaling message, wherein the equipment state of the substation comprises: the device comprises a transformer, a bus, a circuit breaker, a power line, a lightning arrester, an isolating switch, a meter and electronic fence equipment;
step 2.4, remote signaling forwarding;
step 2.4.1, forwarding through a remote terminal unit, building a reverse transmission structure, building a forwarding remote terminal unit as a sub-station end in a dispatching center, building a data server intermediate station as a main station end on site, and transmitting a total call or displacement telecommand through a comprehensive data network to obtain telecommand data;
step 2.4.2, collecting and processing substation data:
step 2.5, remote signaling analysis; the method comprises the steps of establishing communication, collecting message information, appointing character length positions according to data received by a response total recall response of an analysis substation end, extracting the number of remote signaling data from the character length positions, and obtaining each remote signaling data, remote measuring data and remote viewing data information in a mode of mutually converting a 10-system mode into a 16-system mode or an 16/10-system mode.
Step 3, when the state of the telecontrol data changes, the stored change data is acquired, communication is established, remote signaling data state information is sent to carry out data storage operation, and the acquired remote signaling data is transmitted to the three-dimensional live-action server platform in combination with a communication mechanism;
the three-dimensional live-action server platform is a platform capable of generating a substation equipment parameterized 3D model base for spatial operation analysis, extracting and calibrating characteristics, and dynamically and visually displaying the running state data of the substation equipment in a three-dimensional live-action image mode by adopting a splicing fusion algorithm.
And 4, step 4: the three-dimensional live-action server platform establishes a database connection mechanism through a communication protocol, collects the data state change of telecontrol data, namely telecommand data, displays and displays the state change of the disconnecting switch equipment, namely a transformer, a bus, a breaker, a power line, a lightning arrester and a disconnecting switch in the three-dimensional live-action server platform, and when the state of the power equipment of a substation changes, the video monitoring picture can be automatically adjusted to the position state of the current disconnecting switch equipment, namely the transformer, the bus, the breaker, the power line, the lightning arrester and the disconnecting switch for monitoring, photographing and storing.
Step 5.1, performing laser scanning, namely performing multi-surface scanning on the power equipment of the substation by using a three-dimensional laser scanner, deriving point cloud data and separating the point cloud data of the single equipment;
step 5.2, model construction, wherein the monomer model construction is to perform scanning modeling and mapping on monomer point cloud data, and then to perform layout and placement on the processed monomer model by taking the CAD drawing as reference and the point cloud data as auxiliary reference;
step 5.3, performing animation representation on the model, namely performing animation representation on the state of the disconnecting switch device, namely the state of switching off or switching on; the isolating switch device is a switch device which is used for isolating a power supply and switching operation, is used for connecting and cutting off a small current circuit and has no arc extinguishing function, and when the isolating switch device is in a separated position, an insulation distance meeting the specified requirement and an obvious disconnection mark are arranged between contacts; when the switch is in the closed position, the switch equipment which can bear the current under the condition of a normal loop and the current under the abnormal condition such as short circuit within the specified time is used as a high-voltage isolating switch, namely isolating switch equipment with the rated voltage of more than 1 kV; the isolating switch has no arc extinguishing capability and can only be switched on and off under the condition of no load current; when the motion of the disconnecting switch device changes, the video monitoring picture can synchronously pop up the position state information of the current disconnecting switch device and display and embody the video picture, meanwhile, the picture is taken, the motion state change information of the disconnecting switch device is stored, and the change of the motion state of the disconnecting switch device is indicated through different color marks;
step 5.4, communication;
step 5.4.1, when the telecontrol data state changes, acquiring the data state of the database, and transmitting the data state through a communication protocol; the three-dimensional live-action server platform specifies a port address through a communication protocol, establishes communication, acquires and transmits telemechanical data after reaching a handshake protocol, embodies the state information of the isolating switch equipment data in the three-dimensional live-action server platform by protocol analysis of the acquired telemechanical data message, and sets on or off by specifying preset identification mark information;
and 5.4.2, when the state of the isolating switch equipment changes, sending the appointed preset parameters and the currently received and analyzed data state to the three-dimensional live-action server platform, receiving a preset parameter state identification mode and realizing a real-time intelligent linkage effect on the three-dimensional live-action server platform.
Step 6, video linkage;
step 6.1, extracting the real-time image of the camera from the video server by using the API in the local area network, and extracting the specific video stream from the streaming media server and displaying the specific video stream in the three-dimensional live-action server platform through programming; respectively setting all the disconnecting switch devices in the effective range covered by the camera by setting preset positions of the camera, including a rotation angle and a zooming multiple, corresponding to the ID relationship, and calling the corresponding preset positions when the Value changes, as shown in a preset position calling relationship table 1;
table 1 preset bit call relation table
| Video camera | Presetting bit | ID | Horizontal angle | Elevation angle | Multiple of |
| Camera 1 | Presetting bit 1 | 101 | 238 | 150 | 8 |
| Camera 1 | Presetting bit 2 | 102 | 166 | 90 | 16 |
| Camera 1 | Presetting bit 3 | 103 | 45 | 180 | 2 |
6.2, using the Preset parameter (Preset) to determine the reset parameter of the relevant camera to realize real-time video positioning according to the isolating switch device, wherein the Preset parameter acquisition method comprises two methods: firstly, calculating from a point cloud space, and then obtaining a clear video picture through fine tuning; secondly, corresponding parameters are directly obtained through the adjustment of the holder, then the parameters are stored for calling, and the parameters of the preset points are set without calculating the parameters of the camera in real time every time so as to accelerate the running speed;
6.3, when the action state of the disconnecting switch device changes, calling an API (application program interface) by a current program, designating a server IP (Internet protocol), establishing a corresponding server communication channel, establishing a network connection mode, setting an account and a password, setting multicast parameters and starting a client;
6.4, when the state of the disconnecting switch device changes, popping a video monitoring picture of a camera at the position of the disconnecting switch device of the current three-dimensional live-action server platform according to the received state data of the state change of the disconnecting switch device by the three-dimensional live-action server platform so as to display the real-time state information of the switching-off and switching-on states of the current disconnecting switch device; the disconnecting switch device comprises: transformer, bus, breaker, power line, arrester, isolator's equipment.
The technical idea of the method is that based on a preset linkage rule set, linkage rules define linkage relations among events, the events are equipment action pairs, the linkage rules define trigger conditions and response tables, the trigger conditions are logical operation expressions of the events, the response tables are event sets, namely when an event occurs, a control end of equipment of the event checks whether the trigger conditions of the linkage rules associated with the event in the linkage rule set are met; and when the triggering condition of one linkage rule is determined to be met, sending a response identifier indicating a corresponding event in the response table of the linkage rule to the control end of the corresponding equipment in the response table according to the response table of the linkage rule, and sending a control command to the corresponding equipment by each control end receiving the response identifier so as to execute a corresponding response action.
The invention has the following advantages:
1. the operation state pictures of the transformer, the bus, the circuit breaker, the power line, the lightning arrester and the isolating switch can be captured in real time, and detection monitoring data are provided for operation and maintenance personnel.
2. The video monitoring, the action of the isolating switch, the picture snapshot and the video recording are integrated.
3. According to the invention, the platform protocol of the isolation switch equipment does not need to be changed, and the linkage of a plurality of isolation switch equipment can be realized through the linkage identification and the response identification.
Detailed Description
The following describes embodiments of the present invention in detail. The method comprises the following steps:
step 1, remotely controlling to transmit remote control information, namely remote control, receiving and executing a remote control command, and remotely controlling remote switch control equipment by opening and closing;
step 1.1, the relay control output module is used for respectively realizing remote switching-off and switching-on of a switch of a low-voltage outlet loop, namely a switch with an electric operating mechanism and a voltage-loss tripper, and the electric power dispatching command center initiates an isolating switch action instruction to carry out remote control through a traction power supply telemechanical system;
and step 1.2, converting a scheduling instruction into a message according to an electric power communication protocol by a main station end, namely a control end, of the telecontrol system, and sending the message to a sub-station end, namely a controlled end, through a communication protocol, wherein the sub-station end controls an output module through a relay to realize remote switching-off and switching-on of a switch.
Step 2, collecting and transmitting various protection and switching value information by remote signaling signals, namely remote signals;
step 2.1, collecting and transmitting protection and switching value information, switching position signals and protection signals, wherein the remote signaling signals adopt a passive contact mode, namely, the input of a certain group of remote signaling signals is the closing or opening of contacts of a pair of relays, the closing or opening of the contacts of the relays are converted into low-level or high-level signals through a remote signaling terminal board, the low-level or high-level signals are sent to a remote signaling (YX) module of a Remote Terminal Unit (RTU), namely, a remote terminal control system of the electric power system, the running state signals of an automatic adjusting device, signals capable of providing the output of the relay mode, accident total signals and main power supply power failure signals of the device, and an initialization frame data command and a total calling command are sent by establishing a communication protocol; after telemechanical data, namely telemetering data, remote signaling data and remote control data, are sent, receiving data from a communication protocol, analyzing the data into message information through a power protocol, and uniformly storing and processing telemechanical system data aiming at the telesignaling data, the telemetering data and the remote viewing data;
step 2.2, after the analysis of the power transformation telecontrol system data, namely telecontrol data is completed, the data are stored in a double-floating-point character format, and are converted and transmitted according to different requirements, namely: respectively converting 0 and 1 of the single-point remote communication data into binary 01 and 10, normally storing the double-point remote communication data, and performing reverse conversion on the single-point remote communication data if necessary to solve the ambiguity problem of the data 0 when the single-point remote communication data is stored and facilitate the distinguishing of data characteristics;
step 2.3, remote signaling signals, namely remote state signals, are equipment state signals of the substation are remotely transmitted to a power dispatching command center, the remote monitoring on state information of alarm conditions, switch positions or valve positions is included, the current state of a switch is remotely tested, if the current state is closed or not, energy is stored, after a remote control instruction is executed, the remote signaling state changes, a substation end initiates displacement remote signaling message transmission, and a main station end receives and analyzes the displacement remote signaling message, wherein the equipment state of the substation comprises: the device comprises a transformer, a bus, a circuit breaker, a power line, a lightning arrester, an isolating switch, a meter and electronic fence equipment;
step 2.4, remote signaling forwarding;
step 2.4.1, forwarding through a remote terminal unit, building a reverse transmission structure, building a forwarding remote terminal unit as a sub-station end in a dispatching center, building a data server intermediate station as a main station end on site, and transmitting a total call or displacement telecommand through a comprehensive data network to obtain telecommand data;
step 2.4.2, collecting and processing substation data:
step 2.5, remote signaling analysis; the method comprises the steps of establishing communication, collecting message information, appointing character length positions according to data received by a response total recall response of an analysis substation end, extracting the number of remote signaling data from the character length positions, and obtaining each remote signaling data, remote measuring data and remote viewing data information in a mode of mutually converting a 10-system mode into a 16-system mode or an 16/10-system mode.
Step 3, when the state of the telemechanical data changes, establishing communication by acquiring stored change data, sending remote signaling data, remote measuring data and remote viewing data state information to perform data storage operation, and transmitting the acquired remote signaling data, remote measuring data and remote viewing data to a three-dimensional live-action server platform by combining a communication mechanism;
the three-dimensional live-action server platform is a platform capable of generating a substation equipment parameterized 3D model base for spatial operation analysis, extracting and calibrating characteristics, and dynamically and visually displaying the running state data of the substation equipment in a three-dimensional live-action image mode by adopting a splicing fusion algorithm.
And 4, step 4: the three-dimensional live-action server platform establishes a database connection mechanism through a communication protocol, collects the data state change of telemechanical data, namely telesignaling data, telemetering data and televiewing data, displays and displays the state change of the disconnecting switch equipment, namely a transformer, a bus, a circuit breaker, a power line, a lightning arrester and a disconnecting switch in the three-dimensional live-action server platform, and when the state of the power equipment of a substation changes, a video monitoring picture can be automatically adjusted to the position state of the current disconnecting switch equipment, namely the transformer, the bus, the circuit breaker, the power line, the lightning arrester and the disconnecting switch to monitor and shoot and store.
Step 5.1, performing laser scanning, namely performing multi-surface scanning on the power equipment of the substation by using a three-dimensional laser scanner, deriving point cloud data and separating the point cloud data of the single equipment;
step 5.2, model construction, wherein the monomer model construction is to perform scanning modeling and mapping on monomer point cloud data, and then to perform layout and placement on the processed monomer model by taking the CAD drawing as reference and the point cloud data as auxiliary reference;
step 5.3, performing animation representation on the model, namely performing animation representation on the state of the disconnecting switch device, namely the state of switching off or switching on; the isolating switch device is a switch device which is used for isolating a power supply and switching operation, is used for connecting and cutting off a small current circuit and has no arc extinguishing function, and when the isolating switch device is in a separated position, an insulation distance meeting the specified requirement and an obvious disconnection mark are arranged between contacts; when the switch is in the closed position, the switch equipment which can bear the current under the condition of a normal loop and the current under the abnormal condition such as short circuit within the specified time is used as a high-voltage isolating switch, namely isolating switch equipment with the rated voltage of more than 1 kV; the isolating switch has no arc extinguishing capability and can only be switched on and off under the condition of no load current; when the motion of the disconnecting switch device changes, the video monitoring picture can synchronously pop up the position state information of the current disconnecting switch device and display and embody the video picture, meanwhile, the picture is taken, the motion state change information of the disconnecting switch device is stored, and the change of the motion state of the disconnecting switch device is indicated through different color marks;
step 5.4, communication;
step 5.4.1, when the telecontrol data state changes, acquiring the data state of the database, and transmitting the data state through a communication protocol; the three-dimensional live-action server platform specifies a port address through a communication protocol, establishes communication, acquires and transmits telemechanical data after reaching a handshake protocol, embodies the state information of the isolating switch equipment data in the three-dimensional live-action server platform by protocol analysis of the acquired telemechanical data message, and sets on or off by specifying preset identification mark information;
and 5.4.2, when the state of the isolating switch equipment changes, sending the appointed preset parameters and the currently received and analyzed data state to the three-dimensional live-action server platform, receiving a preset parameter state identification mode and realizing a real-time intelligent linkage effect on the three-dimensional live-action server platform.
Step 6, video linkage;
step 6.1, extracting the real-time image of the camera from the video server by using the API in the local area network, and extracting the specific video stream from the streaming media server and displaying the specific video stream in the three-dimensional live-action server platform through programming; respectively setting all the disconnecting switch devices in the effective range covered by the camera by setting preset positions of the camera, including a rotation angle and a zooming multiple, corresponding to the ID relationship, and calling the corresponding preset positions when the Value changes, as shown in a preset position calling relationship table 1;
table 1 preset bit call relation table
| Video camera | Presetting bit | ID | Horizontal angle | Elevation angle | Multiple of |
| Camera 1 | Presetting bit 1 | 101 | 238 | 150 | 8 |
| Camera 1 | Presetting bit 2 | 102 | 166 | 90 | 16 |
| Camera 1 | Presetting bit 3 | 103 | 45 | 180 | 2 |
6.2, using the Preset parameter (Preset) to determine the reset parameter of the relevant camera to realize real-time video positioning according to the isolating switch device, wherein the Preset parameter acquisition method comprises two methods: firstly, calculating from a point cloud space, and then obtaining a clear video picture through fine tuning; secondly, corresponding parameters are directly obtained through the adjustment of the holder, then the parameters are stored for calling, and the parameters of the preset points are set without calculating the parameters of the camera in real time every time so as to accelerate the running speed;
6.3, when the action state of the disconnecting switch device changes, calling an API (application program interface) by a current program, designating a server IP (Internet protocol), establishing a corresponding server communication channel, establishing a network connection mode, setting an account and a password, setting multicast parameters and starting a client;
6.4, when the state of the disconnecting switch device changes, popping a video monitoring picture of a camera at the position of the disconnecting switch device of the current three-dimensional live-action server platform according to the received state data of the state change of the disconnecting switch device by the three-dimensional live-action server platform so as to display the real-time state information of the switching-off and switching-on states of the current disconnecting switch device; the disconnecting switch device comprises: transformer, bus, breaker, power line, arrester, isolator's equipment.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the present disclosure should be covered within the scope of the present invention claimed in the appended claims.
Claims (4)
1. The intelligent video linkage method for the substation is characterized by comprising the following steps of:
step 1, remotely controlling to transmit remote control information, namely remote control, receiving and executing a remote control command, and remotely controlling remote switch control equipment through switching-off and switching-on;
step 2, collecting and transmitting various protection and switching value information by remote signaling signals, namely remote signals;
step 2.1, collecting and transmitting protection and switching value information by remote signaling signals, wherein switching position signals, protection signals and remote signaling signals adopt a passive contact mode, namely, the input of a certain group of remote signaling signals is the closing or opening of contacts of a pair of relays, the closing or opening of the contacts of the relays is converted into low-level or high-level signals through a remote signaling terminal board, the low-level or high-level signals are sent to a remote signaling (YX) module of a Remote Terminal Unit (RTU), namely, a remote terminal control system of the electric power system, running state signals of an automatic adjusting device, signals capable of providing the output of the relays, accident total signals and main power supply power failure signals of the device, and an initialization frame data command and a total calling command are sent by establishing a communication protocol; after telemechanical data, namely telemetering data, remote signaling data and remote control data, are sent, receiving data from a communication protocol, analyzing the data into message information through a power protocol, and uniformly storing and processing telemechanical system data aiming at the telesignaling data, the telemetering data and the remote viewing data;
step 2.2, after the telemechanical system data, namely telemechanical data, are analyzed, the telemechanical system data are stored in a double-floating-point character format, and are converted and transmitted according to different requirements, namely: respectively converting 0 and 1 of the single-point remote communication data into binary 01 and 10, and normally storing the double-point remote communication data;
step 2.3, remote signaling signals, namely remote state signals, are equipment state signals of the substation are remotely transmitted to a power dispatching command center, the remote monitoring on state information of alarm conditions, switch positions or valve positions is included, the current state of a switch is remotely tested, whether the switch is switched on or not and energy is stored, after a remote control instruction is executed, the remote signaling state changes, a substation end initiates displacement remote signaling message transmission, a main station end receives and analyzes the displacement remote signaling message, and the substation equipment comprises: the system comprises isolation switch equipment, a meter and electronic fence equipment;
step 2.4, remote signaling forwarding;
step 2.5, remote signaling analysis; the method comprises the steps of establishing communication, collecting message information, appointing character length positions according to data received by a response total recall response of an analysis substation end, extracting the number of remote signaling data from the character length positions, and obtaining each remote signaling data, remote measuring data and remote viewing data information in a mode of converting a 10-system mode into a 16-system mode or a 16/10-system mode;
step 3, when the state of the telemechanical data changes, establishing communication by acquiring stored change data, sending remote signaling data, remote measuring data and remote viewing data state information to perform data storage operation, and transmitting the acquired remote signaling data, remote measuring data and remote viewing data to a three-dimensional live-action server platform by combining a communication mechanism;
the three-dimensional live-action server platform is a platform which can generate a parameterized 3D model library of substation equipment for spatial operation analysis, and dynamically and visually display the running state data of the substation equipment in a three-dimensional live-action image mode by adopting a splicing fusion algorithm after feature extraction and calibration;
and 4, step 4: the three-dimensional live-action server platform establishes a database connection mechanism through a communication protocol, collects the data state change of telemechanical data, namely telesignaling data, telemetering data and televiewing data, displays and displays the state change of the disconnecting switch equipment in the three-dimensional live-action server platform, and when the state of the electric power equipment of the substation changes, a video monitoring picture can be automatically adjusted to the position state of the current disconnecting switch equipment for monitoring, photographing and storing;
step 4.1, laser scanning, namely performing multi-surface scanning on the power equipment of the substation by using a three-dimensional laser scanner, exporting point cloud data and separating the point cloud data of the single equipment;
step 4.2, model construction, wherein the monomer model construction is to perform scanning modeling and mapping on the point cloud data of the monomer equipment, and then to perform layout and placement on the processed monomer model by taking the CAD drawing as reference and the point cloud data as auxiliary reference;
4.3, performing animation representation on the model, namely performing animation representation on the state of the disconnecting switch device, namely the state of switching off or switching on; the isolating switch device is a switch device which is used for isolating a power supply and switching operation, is used for connecting and cutting off a small current circuit and has no arc extinguishing function, and when the isolating switch device is in a separated position, an insulation distance meeting the specified requirement and an obvious disconnection mark are arranged between contacts; when the device is in a closed position, the device can bear current under a normal loop condition and abnormal conditions within specified time, and is used as a high-voltage isolating switch, namely isolating switch equipment with rated voltage of more than 1 kV; the isolating switch has no arc extinguishing capability and can only be switched on and off under the condition of no load current; when the motion of the disconnecting switch device changes, the video monitoring picture synchronously pops up the position state information of the current disconnecting switch device and displays and embodies the video picture, meanwhile, the picture is taken, the motion state change information of the disconnecting switch device is stored, and the change of the motion state of the disconnecting switch device is indicated through different color marks;
step 4.4, communication;
step 5, video linkage;
step 5.1, extracting the real-time image of the camera from the video server by using the API in the local area network, and extracting the specific video stream from the streaming media server and displaying the specific video stream in the three-dimensional live-action server platform through programming; respectively setting all the disconnecting switch devices in the effective range covered by the camera by setting preset positions of the camera, including a rotating angle and a zooming multiple, corresponding to the ID relation, and calling the corresponding preset positions when the Value changes;
step 5.2, the Preset parameter (Preset) is used for determining the reset parameter of the related camera to realize real-time video positioning according to the disconnecting switch device, and the Preset parameter is obtained by two methods: firstly, calculating from a point cloud space, and then obtaining a clear video picture through fine tuning; secondly, corresponding parameters are directly obtained through the adjustment of the pan-tilt, then the parameters are stored for calling, and the preset position parameters are set without calculating the parameters of the camera in real time every time so as to accelerate the running speed;
step 5.3, when the action state of the disconnecting switch device changes, a current program calls an API interface, a server IP is appointed, a corresponding server communication channel is established, a network connection mode is established, an account and a password are set, multicast parameters are set, and a client is started;
and 5.4, when the state of the disconnecting switch device changes, popping a video monitoring picture of a camera at the position of the disconnecting switch device of the current three-dimensional live-action server platform according to the received state data of the state change of the disconnecting switch device by the three-dimensional live-action server platform so as to display the real-time state information of the switching-off and switching-on states of the current disconnecting switch device.
2. The intelligent video linkage method for the substation according to claim 1, wherein the step 1 comprises the following steps:
step 1.1, the relay control output module is used for respectively realizing remote switching-off and switching-on of a switch of a low-voltage outlet loop, namely a switch with an electric operating mechanism and a voltage-loss tripper, and the electric power dispatching command center initiates an isolating switch action instruction to carry out remote control through a traction power supply telemechanical system;
and step 1.2, converting a scheduling instruction into a message according to an electric power communication protocol by a main station end, namely a control end, of the telecontrol system, and sending the message to a sub-station end, namely a controlled end, through a communication protocol, wherein the sub-station end controls an output module through a relay to realize remote switching-off and switching-on of a switch.
3. The intelligent video linkage method for the substation according to claim 1, wherein the step 2.4 comprises the following steps:
step 2.4.1, forwarding through a remote terminal unit, building a reverse transmission structure, building a forwarding remote terminal unit as a sub-station end in a dispatching center, building a data server intermediate station as a main station end on site, and transmitting a total call or displacement telecommand through a comprehensive data network to obtain telecommand data;
and 2.4.2, acquiring and processing substation data.
4. The intelligent video linkage method for the substation according to claim 1, wherein the step 4.4 comprises the following steps:
step 4.4.1, when the telecontrol data state changes, acquiring the data state of the database, and transmitting the data state through a communication protocol; the three-dimensional live-action server platform specifies a port address through a communication protocol, establishes communication, acquires and transmits telemechanical data after reaching a handshake protocol, embodies data state information of the disconnecting switch device in the three-dimensional live-action server platform through protocol analysis on the acquired telemechanical data message, and sets on or off by specifying preset identification mark information;
and 4.4.2, when the state of the isolating switch equipment changes, the specified preset parameters and the currently received and analyzed data state are sent to the three-dimensional live-action server platform, and the real-time intelligent linkage effect is realized on the three-dimensional live-action server platform according to a preset parameter state identification mode.
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| CN110324584A (en) * | 2019-07-15 | 2019-10-11 | 广东电网有限责任公司 | A kind of monitoring device of quick lock in displacement equipment |
| CN110599446B (en) * | 2019-07-26 | 2022-06-17 | 深圳供电局有限公司 | Method for judging switching-on position of isolating switch |
| CN111476192B (en) * | 2020-04-15 | 2021-03-12 | 八维通科技有限公司 | Intercepted image synthesis method based on intelligent traffic and big data cloud server |
| CN111526330A (en) * | 2020-04-17 | 2020-08-11 | 广东电网有限责任公司 | Transformer substation equipment state intelligent recognition system based on machine vision |
| CN113689080B (en) * | 2021-07-28 | 2023-05-26 | 国网湖南省电力有限公司 | Substation linkage signal compiling and checking system, method and storage medium |
| CN115150559B (en) * | 2022-09-06 | 2022-11-25 | 国网天津市电力公司高压分公司 | Remote vision system with acquisition self-adjustment calculation compensation and calculation compensation method |
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| CN106655510B (en) * | 2016-12-08 | 2019-01-04 | 积成电子股份有限公司 | A kind of data acquisition and procession method of substation's telecontrol system |
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