CN115549291A - Remote measuring center control system and trans-regional instruction and data interaction method thereof - Google Patents
Remote measuring center control system and trans-regional instruction and data interaction method thereof Download PDFInfo
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00001—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00002—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00022—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using wireless data transmission
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
- H02J13/00034—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving an electric power substation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
Abstract
The invention discloses a telemetering center control system under a power two-three-area safety isolation condition and a cross-area instruction and data interaction method thereof. The system comprises a background module deployed in a third safety area and a foreground module running in a second safety area. And the foreground module sends system working parameter configuration, a remote control instruction of the remote measuring equipment and an operation parameter modification instruction of the remote measuring equipment to the background module through the forward isolating device. The background module transmits the analysis result of the telemetering data, the state information of the telemetering equipment, the remote control instruction of the telemetering equipment or the execution result of the parameter modification instruction to the foreground module through the reverse isolation device, and the data display is carried out by the foreground module. The invention solves the problem that operation and maintenance personnel in the second safety area can not be directly in the second safety area and must remotely control and maintain the remote measuring equipment through a central program of the remote measuring system deployed in the third safety area, and obviously improves the remote control and maintenance efficiency of the remote measuring equipment.
Description
Technical Field
The invention belongs to the field of power production and power system operation, relates to a remote measurement system for data communication across a power secondary system safety zone, and particularly relates to a remote measurement center control system and a cross-zone instruction and data interaction method thereof under a power two-zone and three-zone safety isolation condition.
Background
The power secondary system is divided into a production control area and a management information area according to the safety level, wherein the production control area is divided into a control area (also called a safety first area) and a non-control area (also called a safety second area). The information management large area is divided into a production management area (also called a safety three area) and a management information area (a safety four area).
The electric power secondary system generally comprises a plurality of remote telemetering devices, the remote telemetering devices are responsible for collecting service data related to operation of specific power systems such as power generation, power transmission and the like, such as rainfall, water level, temperature and humidity, sunlight intensity, tower inclination, line icing, insulator state and the like, the service data are transmitted to an electric power secondary system center through a remote transmission channel, are received by a set of special remote telemetering center station programs and are subjected to primary filtering, and then are exchanged to corresponding high-level application software for further screening and analysis, so that a basic data basis is provided for operation decision of the system. The remote transmission channel between the early remote-measuring system central program and the remote-measuring equipment generally adopts ultrashort waves, satellites, PSTN (public switched telephone network) and the like, and is basically point-to-point transmission, and the safety is guaranteed without the transfer of an external communication network, so the remote-measuring system central program is generally selected to be deployed in a safety area II. With the development of mobile communication networks, transmission modes such as GPRS/4G/and the like are widely applied to a telemetry system, and the transmission modes inevitably enable a central program of the telemetry system to interact with an external communication network, because a data acquisition server of the telemetry system center must have a public network IP address or a private network IP address for receiving data based on the mobile communication network, no matter which mode is adopted, the data acquisition server needs to be exposed in the public network or a mobile private network, and if the data acquisition server is deployed in a security second area, the data acquisition server does not conform to the security regulations of a power secondary system. Therefore, when the telemetry system comprises GPRS/4G and other mobile communication accesses, the central program of the telemetry system is generally selected to be deployed in a safe three-zone. As shown in fig. 1, the service data of the telemetry equipment received by the central program in the three areas is converted into an ETF format file, transmitted to the second safety area through a reverse isolation device between the two and three areas, and then restored into original data by an ETF file analysis program in the second safety area, and written into a database.
The existing central program framework and deployment mode of the telemetry system are inconvenient for operation and maintenance personnel in a second area to carry out remote control on a telemetry station, because a telemetry central program is deployed in a third area, the telemetry central program cannot directly control the program in the third area to send a control instruction to a telemetry device in the second area. And the existing telemetry center program only supports generation of original service data into an ETF file to be transmitted to a second area, and operation and maintenance personnel in the second area can only master the condition of telemetry service data and cannot master key data of a telemetry system such as the running state of equipment, the state of a transmission channel and the like in real time.
Disclosure of Invention
The invention aims to provide a remote measuring center control system under the condition of power two-region and three-region safety isolation and a cross-region instruction and data interaction method thereof, so as to solve the problem that operation and maintenance personnel in the two regions of the existing remote measuring system cannot directly remotely control remote measuring equipment.
In order to achieve the purpose, the invention adopts the following technical scheme:
on one hand, the telemetering center control system under the power three-two area safety isolation condition comprises a background module arranged in the three-safety area and a foreground module running in the two-safety area, a forward isolation device and a reverse isolation device are arranged between the three-safety area and the two-safety area,
the foreground module is used for issuing an operating parameter modification instruction or a remote control instruction of the telemetering equipment, converting the operating parameter modification instruction or the remote control instruction into an instruction message and transmitting the instruction message to the background module through the forward isolating device; analyzing the ETF file sent by the reverse isolation device, and writing the data generated by analysis into a database or directly displaying the data;
the background module is used for receiving the instruction message transmitted by the foreground module through the forward isolating device, analyzing the instruction message into a corresponding operation parameter modification instruction or a remote control instruction of the telemetering equipment, and initiating a corresponding parameter modification or control instruction to the telemetering equipment; and analyzing the real-time data sent by the telemetry equipment, generating an ETF file by the real-time data analysis result and/or various state information related to the operation of the background module, and sending the ETF file to the foreground module through the reverse isolation device.
Further, the foreground module includes at least:
the user interface is used for displaying various remote measuring system operation information and system parameters and providing remote control, working parameter reading and modifying interfaces of the remote measuring equipment;
the database access sub-module is used for writing the information or data generated by the analysis of the reverse isolation ETF analysis sub-module into the database or extracting the data from the database for displaying a user interface;
the system parameter configuration submodule is used for maintaining, storing and modifying various working parameters related to the operation of the background module and providing a corresponding calling interface for a user interface to use;
the interface input translation sub-module is used for translating the operation parameter modification instruction or the control instruction of the telemetering equipment input through the user interface into a transmission message;
the forward isolation communication submodule is used for transmitting a transmission message translated by the interface input translation submodule to the background module through the forward isolation device;
and the reverse isolation ETF analysis sub-module is used for analyzing the ETF file sent by the reverse isolation device, and the information or data generated after analysis is written into the database or provided for a user interface to be displayed by the database access sub-module.
Further, the background module comprises at least:
the forward isolation communication analysis submodule is used for receiving a message sent by the foreground module through the forward isolation device and analyzing the message into a corresponding telemetry equipment operating parameter modification instruction or a remote control instruction;
the telemetering equipment interaction submodule is used for initiating parameter modification or control instructions to the telemetering equipment according to the telemetering equipment operation parameter modification instructions or remote control instructions analyzed by the forward isolation communication analysis submodule; receiving and analyzing real-time data sent by the telemetry equipment;
and the reverse isolation ETF generation sub-module is used for generating an ETF file from the data analyzed by the telemetry equipment interaction sub-module and/or various state information related to the operation of the background module and sending the ETF file to the foreground module through the reverse isolation device.
Further, the data message sent by the background module to the foreground module through the reverse isolation device is uniformly converted into an ETF file format according to a method of converting 1 single byte into 2 ASCII characters, and the method of converting 1 single byte into 2 ASCII characters comprises the following steps:
firstly, taking out the high 4 bits of the byte to be converted, and adding 48 bits if the value is judged to be less than 10; if not, adding 70 to save as the 1 st ASCII character;
then taking out the lower 4 bits of the byte to be converted, and adding 48 if the value is less than 10; otherwise, 70 is added, and the character is saved as the 2 nd ASCII character.
On the other hand, a cross-region instruction and data interaction method under the power two-region and three-region safety isolation condition is realized based on the telemetry center control system, and the method comprises the following steps:
after the background module is started, firstly, the parameters stored in the local computer are not loaded, and a link detection message containing a parameter version number sent by the foreground module is waited;
after the foreground module is started, sending a link detection message to the foreground module through the forward isolating device, and waiting for a response message returned by the background module through the forward isolating device;
after receiving the link detection message sent by the foreground module, the background module analyzes the parameter version number, compares the parameter version number with the parameter version stored by the local machine, generates a first response message if the parameter version number is consistent with the parameter version number, immediately loads the parameters after returning to the foreground module through the forward isolating device, and generates a second response message and returns the second response message to the foreground module through the forward isolating device if the parameter version number is successfully loaded;
and after receiving the first response message and the second response message, the foreground module allows issuing a control instruction for the telemetering equipment, a modification instruction for the running parameters of the telemetering equipment or a modification instruction for the running parameters of the background module.
Further, the method for interacting the cross-region instruction and the data under the power two-region and three-region safety isolation condition further includes:
if the background module parameter is not loaded or loading fails, generating a corresponding third response message and returning the third response message to the foreground module through the forward isolation device;
and the foreground module receives the third response message and pops up an interface to prompt.
Further, the method for interacting the cross-zone instruction and the data under the condition of the safety isolation of the second zone and the third zone of the power further comprises the following steps:
if the background module judges that the received parameter version number is inconsistent with the parameter version stored in the local machine, a fourth response message with different version numbers is generated and returned to the foreground module through the forward isolating device;
the foreground module receives the fourth response message, reads the relevant parameters of the telemetering equipment stored in the local machine, and sends the parameters to the background module through the forward isolating device;
and the background module immediately loads the relevant parameters of the telemetry equipment after receiving the relevant parameters, and if the loading is successful, a second response message is generated and returned to the foreground module through the forward isolation device.
Further, the method for interacting the cross-region instruction and the data under the power two-region and three-region safety isolation condition further includes:
when the foreground module issues a control instruction or an operation parameter modification instruction of the telemetry equipment to the background module, a unique instruction serial number is generated, the instruction content and the corresponding instruction serial number are packaged into an instruction message and sent to the background module through a forward isolation device;
after receiving the instruction message, the background module analyzes the instruction sequence number and the instruction content, forwards the instruction sequence number and the instruction content to the telemetering equipment, and when receiving the response of the telemetering equipment or when the telemetering equipment does not respond after time out, encapsulates the response content or the time out result and the same instruction sequence number into an instruction response message and sends the instruction response message to the foreground module through a reverse isolation device;
and the foreground module analyzes the instruction response message after receiving the instruction response message, searches the instruction matched with the received instruction sequence number in the sent instruction queue, and displays the execution result of the instruction.
Further, the method for interacting the cross-region instruction and the data under the power two-region and three-region safety isolation condition further includes:
the foreground module always sends a link detection message to the background module at regular time, if the continuous times of not receiving the response of the background module exceed the set maximum value, the background module is considered to be offline, any instruction is forbidden to be sent to the background module from the user interface, and the link detection message is continuously sent to the background module.
Further, the method for interacting the cross-zone instruction and the data under the condition of the safety isolation of the second zone and the third zone of the power further comprises the following steps:
the background module generates corresponding ETF files together with the received and analyzed telemetering equipment data, various state data related to the operation of the background module and response data aiming at instructions of the foreground module, transmits the ETF files to the foreground module through the reverse isolation device, and displays the ETF files by the foreground module.
Further, the method for interacting the cross-region instruction and the data under the power two-region and three-region safety isolation condition further includes:
if the foreground module modifies the working parameters, the version number of the parameters is changed, and the version number and the modified working parameters are sent to the background module through the forward isolating device; the background module analyzes the version number after receiving the version number and replaces the previously stored version number.
Compared with the prior art, the invention has the following beneficial technical effects:
the telemetering center control system comprises two independent foreground modules and a background module which are respectively responsible for realizing an interface display function and a telemetering equipment interaction function, so that the two modules can be deployed in a cross-region manner. Based on the cross-region instruction and data interaction method provided by the invention, the foreground module and the background module realize the loading and modification of the operation parameters of the remote measuring system and the full-flow closed-loop response of the remote control instruction of the remote measuring equipment, so that operation and maintenance personnel in a safe second region can directly check the key operation information of the remote measuring system such as the state of the remote measuring equipment and a communication channel and remotely control the remote measuring equipment in the local region, and the remote control and operation and maintenance efficiency of the remote measuring equipment are obviously improved.
Drawings
FIG. 1 is a schematic diagram of a prior art telemetry system central programming architecture;
FIG. 2 is a schematic diagram of a telemetry center control system of the present invention.
Detailed Description
The invention is further described with reference to specific examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
As shown in fig. 2, a telemetry center control system under a power two-region and three-region security isolation condition includes a background module deployed in a security three-region and a foreground module operating in a security two-region, the background module directly interacts with telemetry equipment, and the foreground module is used for processing human-computer interaction and background database access. A forward isolating device and a reverse isolating device are arranged between the safety three area and the safety two area.
The remote measuring center control system is deployed on a server of a central machine room of an electric power system and used for interacting with remote measuring equipment installed in a remote place, receiving data acquired by the remote measuring equipment, sending a control command to the remote measuring equipment, modifying working parameters of the remote measuring equipment or controlling the remote measuring equipment to output a specific signal. Data transmission channels between the central control system and the telemetry devices include, but are not limited to, ultra short wave, fiber optic, short message, GPRS, satellite, etc. The remote measuring equipment is used for collecting service data related to the operation of a specific power system for power generation, power transmission and the like, such as rainfall, water level, temperature and humidity, sunlight intensity, tower inclination, line icing, insulator state and the like.
The foreground module is used for the operation and maintenance personnel to issue a telemetry equipment operation parameter modification instruction or a telemetry equipment remote control instruction, convert the telemetry equipment operation parameter modification instruction or the telemetry equipment remote control instruction into an instruction message and transmit the instruction message to the background module through the forward isolation device;
the background module is used for receiving the instruction message transmitted by the foreground module through the forward isolating device, analyzing the instruction message into a corresponding telemetering equipment operation parameter modification instruction or a telemetering equipment remote control instruction, and initiating a corresponding parameter modification or control instruction to the telemetering equipment.
The background module is also used for analyzing the real-time data sent by the telemetering equipment, generating an ETF file according to the analysis result of the real-time data and/or various state information related to the operation of the background module and sending the ETF file to the foreground module through the reverse isolation device;
the foreground module is used for analyzing the ETF file sent by the reverse isolation device, and writing the data generated by analysis into a database or directly displaying the data.
The foreground module at least comprises a user interface, a database access sub-module, a system parameter configuration sub-module, an interface input translation sub-module, a forward isolation communication sub-module and a reverse isolation ETF analysis sub-module.
And the user interface is used for displaying various telemetering system operation information and system parameters, such as the real-time data acquisition of telemetering equipment, telemetering equipment state information, communication channel state and the like, and providing interfaces for telemetering equipment remote control, working parameter reading, modification and the like.
The operation parameter modification instruction of the telemetering equipment, the remote control instruction of the telemetering equipment, the operation parameter modification instruction of the background module and the like can be input through the user interface.
And the database access sub-module is used for writing the information or data generated by the analysis of the reverse isolation ETF analysis sub-module into the database or extracting the data from the database for displaying on a user interface.
And the system parameter configuration submodule is used for maintaining, storing and modifying various working parameters related to the operation of the background module, such as the configuration of data point numbers of the telemetering equipment, the type of a communication channel and the like, and providing a corresponding calling interface for a user interface to use.
And the interface input translation sub-module is used for translating a modification instruction aiming at the operating parameters of the telemetering equipment, a telemetering equipment control instruction or an instruction aiming at the operating parameters modification of the background module and the like which are input through a user interface into a specific transmission message.
And the forward isolation communication submodule is used for sending the transmission message translated by the interface input translation submodule to the background module through the forward isolation device, so that unidirectional data transmission from the second electric power safety area to the third electric power safety area by the foreground module is realized.
And the reverse isolation ETF analysis sub-module is used for analyzing the ETF file which is received from the three power safety areas by the reverse isolation device and transmitted to the two power safety areas, and the information or the data generated after analysis is written into the database by the database access sub-module or is provided for a user interface to be displayed.
The background module at least comprises a telemetry equipment interaction sub-module, a forward isolation communication analysis sub-module and a reverse isolation ETF generation sub-module.
And the forward isolation communication analysis submodule is used for receiving the message sent by the foreground module through the forward isolation device and analyzing the message into a corresponding telemetry equipment operating parameter modification instruction, a telemetry equipment remote control instruction or an instruction for modifying the operating parameters of the background module.
And the telemetering device interaction submodule is used for initiating instructions such as parameter modification and control to the telemetering device according to the telemetering device operating parameter modification instruction or the telemetering device remote control instruction analyzed by the forward isolation communication analysis submodule. Meanwhile, the telemetry equipment interaction sub-module is also used for receiving and analyzing real-time data sent by the telemetry equipment.
And the reverse isolation ETF generation sub-module is used for generating an ETF file from the telemetry data analyzed by the telemetry equipment interaction sub-module, various running state information of the background module, a response aiming at a remote control instruction of the foreground module and the like, and sending the ETF file to the foreground module through the reverse isolation device.
The working parameters related to the telemetering equipment required by the operation of the background module are stored at the front platform module side, and the parameters are read and sent to the background module after the front platform module is started. The background module sends the analysis results of the messages sent by the telemetry equipment to the foreground module for display, and the background module has no interface.
In another embodiment, a method for interacting cross-zone instructions and data under a power two-zone and three-zone safety isolation condition includes the following steps:
step s1, after a background module is started, firstly, not loading parameters stored in a local machine, and waiting for a link detection message containing a parameter version number sent by a foreground module;
step s2, after the foreground module is started, sending a link detection message containing a parameter version number to the foreground module through the forward isolation device, and waiting for a response message returned by the background module through the forward isolation device; if receiving the response message returned by the background module, the foreground module considers the link between the two is normal, otherwise, the foreground module continues the step;
step s3, after receiving the link detection message sent by the foreground module, the background module analyzes the parameter version number therein, compares the parameter version number with the parameter version stored by the local machine, if the parameter version number is consistent with the parameter version stored by the local machine, the step s4 is executed, otherwise, the step s5 is executed;
step s4, generating a first response message with the same version number, returning the first response message to the foreground module through the forward isolation device, and executing step s6;
step s5, generating fourth response messages with different version numbers, and returning the fourth response messages to the foreground module through the forward isolation device; the foreground module receives the fourth response message, reads the relevant parameters of the telemetering equipment stored in the local machine, and sends the parameters to the background module through the forward isolation device; after receiving the relevant parameters of the telemetering equipment, the background module executes the step s6;
step s6, the background module immediately loads parameters, and if the parameters are successfully loaded, the step s7 is executed; if not, executing step s8;
step s7, generating a second response message with successfully loaded parameters and returning the second response message to the foreground module through the forward isolation device, wherein the foreground module allows issuing a control instruction for the telemetering equipment, a modification instruction for the running parameters of the telemetering equipment or a modification instruction for the running parameters of the background module after receiving the second response message;
and step s8, generating a third response message which is not loaded or fails to be loaded, returning the third response message to the foreground module through the forward isolation device, and popping up an interface to prompt so that operation and maintenance personnel can troubleshoot parameter configuration problems after the foreground module receives the third response message.
Step s9, the foreground module always sends a link detection message to the background module at regular time, if the continuous times of not receiving the response of the background module exceed the set maximum value, the background module is considered to be offline, any control instruction is forbidden to be sent to the background module from the user interface, and the process goes to step s2;
and step s10, the background module processes and analyzes the received telemetry equipment data in real time, generates corresponding ETF files together with various state data related to the operation of the telemetry system and response data aiming at instructions of the foreground module, transmits the ETF files to the foreground module through a reverse isolation device, and displays the ETF files by the foreground module.
If the foreground module modifies the working parameters, the version number of the parameters is changed, and the version number and the modified working parameters are sent to the background module through the forward isolating device; the background module receives and analyzes the version number to replace the previously stored version number.
When the foreground module issues a control instruction or an operation parameter modification instruction of the telemetry equipment to the background module, a unique instruction serial number is generated, the instruction content and the corresponding instruction serial number are packaged into an instruction message and sent to the background module through a forward isolation device;
after receiving the instruction message, the background module analyzes the instruction sequence number and the instruction content, forwards the instruction sequence number and the instruction content to the telemetering equipment, and when receiving the response of the telemetering equipment or when the telemetering equipment does not respond after time out, encapsulates the response content or the time out result and the same instruction sequence number into an instruction response message and sends the instruction response message to the foreground module through a reverse isolation device;
and the foreground module analyzes the instruction response message after receiving the instruction response message, searches the instruction matched with the received instruction sequence number in the sent instruction queue, and displays the execution result of the instruction.
The format of the link detection message sent by the foreground module is similar to that as follows:
<HEAD><OPLINK><PARAVER><INFO>
wherein HEAD is a message header and should be not less than 4 same bytes; OPLINK represents link detection message, and can be customized; PARAVER is the version number of the running parameters of the telemetry equipment stored in the current foreground module, and the foreground module can form a new version number of the parameters every time the parameters are modified; < INFO > is other information, not necessarily.
And after the foreground module is started, the foreground module sends a link detection message to the background module through the forward isolating device, waits for a response returned by the background module from the forward isolating device, and if the response of the background module is not waited within 1 second, the background module continues to send the link detection message.
After receiving the link detection message sent by the foreground module, the background module analyzes the parameter version number therein, generates a response message according to the stored parameter version number and the parameter loading state, and returns the response message to the foreground module through the forward isolation device. Since the forward isolator reverse transmission only allows 1 byte, the different bits of the response byte are designed to represent various information:
BIT0 (lowest BIT): whether parameter version numbers of the foreground module and the background module are the same or not, wherein 0 represents different, and 1 represents same;
BIT1-BIT2 (second lowest and second lowest): and whether the background module parameter is loaded or not, wherein 0 represents that the background module parameter is not loaded, 1 represents that the background module parameter is loaded successfully, and 2 represents that the background module parameter is loaded successfully.
The rest of the BITs are reserved.
After receiving the response sent by the background module through the forward isolating device, the foreground module performs the following operations according to the content in the response message:
if the versions of the foreground and background parameters are not consistent, the foreground module immediately issues the running parameters to the background module, and the background module immediately responds after receiving the parameters. The message format sent by the foreground module program is similar as follows:
<HEAD><OPPARA><PARA>
wherein, HEAD is a message header consistent with the link detection message; OPPARA indicates that the packet is a parameter message and can be customized; the PARA is the telemetry device operating parameters required for the background module to operate.
The background module only responds to one byte after receiving the data, the content is arbitrary, and the parameter loading is started immediately.
After the foreground module finishes sending the parameter loading message, the foreground module continues to send the link detection message to the foreground module, the background module responds according to the parameter loading progress, and if the parameter loading is successful, the value formed by BIT1-BIT2 of the response byte is set to be 2.
And after the foreground module receives the response of successful parameter loading of the background module, the foreground module opens a control instruction interface of the telemetering equipment.
When a telemetering equipment control instruction or an operation parameter modification instruction is issued from the foreground module to the background module, the foreground module needs to generate a unique instruction serial number, package the serial number in a message, and send the message to the background module. For telemetry device control commands, the format is similar as follows:
<HEAD><OPCTRL><CMDNO><CMDDATA>
wherein, HEAD is a message header and is not less than 4 same bytes; OPCTRL represents a telemetering equipment control message and can be customized; CMDNO is the only instruction sequence number and CMDDATA is the actual instruction content.
After receiving the instruction sent by the foreground module, the background module analyzes the instruction sequence number and the instruction content and forwards the instruction sequence number and the instruction content to the telemetering equipment, when the response of the telemetering equipment is obtained or the equipment overtime does not respond, the background module transmits the response content or the overtime result to the foreground module through the reverse isolation device, the same instruction sequence number is packaged in the transmitted message, the foreground module searches and receives the instruction matched with the received sequence number in the sent instruction queue after receiving and analyzing, and the execution result of the instruction is displayed.
The format of the response message of the background module is similar as follows:
<HEAD><OPCTRL><CMDNO><CMDRESP>
wherein HEAD is a message header and should be not less than 4 same bytes; OPCTRL represents a telemetering equipment control message and can be customized; CMDNO is the only order serial number, which is consistent with the order serial number sent by the foreground module, and CMDRESP is the order response content of the telemetering equipment.
The background module converts all the data messages sent to the foreground module into printable character strings by a method of uniformly converting 2 ASCII characters according to 1 single byte through the reverse isolation device so as to store the printable character strings in an ETF file format.
The specific method for converting single byte into ASCII character is as follows:
firstly, taking out the high 4 bits of the byte to be converted, and adding 48 bits if the value is judged to be less than 10; if 10 or more, 70 is added. Saved as the 1 st ASCII character.
Then taking out the lower 4 bits of the byte to be converted, and adding 48 if the value is less than 10; if 10 or more, 70 is added. Saved as the 2 nd ASCII character.
For example, 4 16-system numbers, 0x11,0x22,0x33,0x44, are converted into ASCII characters in the above-mentioned manner, and then, they are 8 bytes, i.e., 0x31,0x32, 0x33,0x44, and 0x44.
ASCII characters are a standard single-byte character encoding scheme for text-based data. The standard uses a specified 7-bit or 8-bit binary number combination to represent 128 or 256 possible characters. Standard ASCII code, also called basic ASCII code, uses a 7-bit binary number (the remaining 1-bit binary is 0) to represent all upper and lower case letters, the numbers 0 to 9, punctuation, and special control characters used in american english.
The telemetering center control system comprises two independent foreground modules and a background module which are respectively responsible for realizing an interface display function and a telemetering equipment interaction function, so that the two modules can be deployed in a cross-region manner. The foreground module and the background module realize the loading and modification of the operation parameters of the remote measuring system and the full-flow closed-loop response of the remote control instruction of the remote measuring equipment, so that operation and maintenance personnel in a safety second area can directly check the key operation information of the remote measuring system such as the state of the remote measuring equipment and the state of a communication channel and remotely control the remote measuring equipment in the area, and the operation and maintenance efficiency of the remote measuring equipment is obviously improved.
The present invention has been disclosed in terms of the preferred embodiment, but is not intended to be limited to the embodiment, and all technical solutions obtained by substituting or converting equivalents thereof fall within the scope of the present invention.
Claims (11)
1. A telemetering center control system under the condition of power two-three area safety isolation is characterized by comprising a background module deployed in a safety three area and a foreground module operated in a safety two area, wherein a forward isolation device and a reverse isolation device are arranged between the safety three area and the safety two area,
the foreground module is used for issuing an operation parameter modification instruction or a remote control instruction of the telemetering equipment, converting the operation parameter modification instruction or the remote control instruction into an instruction message and transmitting the instruction message to the background module through the forward isolation device; analyzing the ETF file sent by the reverse isolation device, and writing the data generated by analysis into a database or directly displaying the data;
the background module is used for receiving the instruction message transmitted by the foreground module through the forward isolation device, resolving the instruction message into a corresponding telemetry equipment operation parameter modification instruction or a remote control instruction, and initiating a corresponding parameter modification or control instruction to the telemetry equipment; and analyzing the real-time data sent by the telemetry equipment, generating an ETF file by the real-time data analysis result and/or various state information related to the operation of the background module, and sending the ETF file to the foreground module through the reverse isolation device.
2. The telemetry center control system under the power two-three area safety isolation condition as claimed in claim 1, wherein the front desk module comprises at least:
the user interface is used for displaying various remote measuring system operation information and system parameters and providing remote control, working parameter reading and modifying interfaces of the remote measuring equipment;
the database access sub-module is used for writing the information or data generated by the analysis of the reverse isolation ETF analysis sub-module into the database or extracting the data from the database for displaying a user interface;
the system parameter configuration submodule is used for maintaining, storing and modifying various working parameters related to the operation of the background module and providing a corresponding calling interface for a user interface to use;
the interface input translation sub-module is used for translating the operation parameter modification instruction or the control instruction of the telemetering equipment input through the user interface into a transmission message;
the forward isolation communication submodule is used for transmitting a transmission message translated by the interface input translation submodule to the background module through the forward isolation device;
and the reverse isolation ETF analysis sub-module is used for analyzing the ETF files sent by the reverse isolation device, and information or data generated after analysis is sent to the database access sub-module to be written into the database or provided for a user interface to be displayed.
3. The telemetry center control system under the power two-three area safety isolation condition of claim 1, wherein the background module at least comprises:
the forward isolation communication analysis submodule is used for receiving a message sent by the foreground module through the forward isolation device and analyzing the message into a corresponding telemetry equipment operating parameter modification instruction or a remote control instruction;
the telemetering equipment interaction submodule is used for initiating parameter modification or control instructions to the telemetering equipment according to the telemetering equipment operation parameter modification instructions or remote control instructions analyzed by the forward isolation communication analysis submodule; receiving and analyzing real-time data sent by the telemetry equipment;
and the reverse isolation ETF generation sub-module is used for generating an ETF file from the data analyzed by the telemetry equipment interaction sub-module and/or various state information related to the operation of the background module and sending the ETF file to the foreground module through the reverse isolation device.
4. The telemetry center control system under the electric power two-three area safety isolation condition as claimed in claim 1, wherein the data message sent by the background module to the foreground module through the reverse isolation device is uniformly converted into an ETF file format according to a method of 1 single byte to 2 ASCII characters, and the method of 1 single byte to 2 ASCII characters comprises:
firstly, taking out the high 4 bits of the byte to be converted, and adding 48 bits if the value is judged to be less than 10; if not, adding 70 to save as the 1 st ASCII character;
then taking out the lower 4 bits of the byte to be converted, and adding 48 if the value is less than 10; otherwise, 70 is added, and the character is saved as the 2 nd ASCII character.
5. A cross-region instruction and data interaction method under the power two-region and three-region safety isolation condition is realized based on the telemetering center control system of any one of claims 1-4, and the method comprises the following steps:
after the background module is started, firstly, the parameters stored in the local machine are not loaded, and a link detection message containing the parameter version number sent by the foreground module is waited;
after the foreground module is started, sending a link detection message to the foreground module through the forward isolating device, and waiting for a response message returned by the background module through the forward isolating device;
after receiving the link detection message sent by the foreground module, the background module analyzes the parameter version number, compares the parameter version number with the parameter version stored by the local machine, generates a first response message if the parameter version number is consistent with the parameter version number, immediately loads the parameters after returning to the foreground module through the forward isolating device, and generates a second response message and returns the second response message to the foreground module through the forward isolating device if the parameter version number is successfully loaded;
and after receiving the first response message and the second response message, the foreground module allows issuing a control instruction for the telemetering equipment, a modification instruction for the operating parameters of the telemetering equipment or a modification instruction for the operating parameters of the background module.
6. The method for interacting the commands and data across the zones under the power two-zone and three-zone safety isolation condition of claim 5, further comprising:
if the background module parameter is not loaded or loading fails, generating a corresponding third response message and returning the third response message to the foreground module through the forward isolation device;
and the foreground module receives the third response message and pops up an interface to prompt.
7. The method for interacting the commands and data across the zones under the condition of safe isolation between the two zones and the three zones in the power system as claimed in claim 5, further comprising:
if the background module judges that the received parameter version number is inconsistent with the parameter version stored in the local machine, a fourth response message with different version numbers is generated and returned to the foreground module through the forward isolation device;
the foreground module receives the fourth response message, reads the relevant parameters of the telemetering equipment stored in the local machine, and sends the parameters to the background module through the forward isolation device;
and the background module immediately loads the relevant parameters of the telemetry equipment after receiving the relevant parameters, and if the loading is successful, a second response message is generated and returned to the foreground module through the forward isolation device.
8. The method for interacting the commands and data across the zones under the condition of safe isolation between the two zones and the three zones in the power system as claimed in claim 5, further comprising:
when the foreground module issues a control instruction or an operation parameter modification instruction of the telemetry equipment to the background module, a unique instruction serial number is generated, the instruction content and the corresponding instruction serial number are packaged into an instruction message and sent to the background module through a forward isolation device;
after receiving the instruction message, the background module analyzes the instruction sequence number and the instruction content, forwards the instruction sequence number and the instruction content to the telemetering equipment, and when receiving the response of the telemetering equipment or when the telemetering equipment does not respond after time out, encapsulates the response content or the time out result and the same instruction sequence number into an instruction response message and sends the instruction response message to the foreground module through a reverse isolation device;
and the foreground module analyzes the instruction response message after receiving the instruction response message, searches the instruction matched with the received instruction sequence number in the sent instruction queue, and displays the execution result of the instruction.
9. The method for interacting the commands and data across the zones under the condition of safe isolation between the two zones and the three zones in the power system as claimed in claim 5, further comprising:
the foreground module always sends a link detection message to the background module at regular time, if the continuous times of not receiving the response of the background module exceed the set maximum value, the background module is considered to be offline, any instruction is forbidden to be sent to the background module from the user interface, and the link detection message is continuously sent to the background module.
10. The method for interacting the commands and data across the zones under the power two-zone and three-zone safety isolation condition of claim 5, further comprising:
the background module generates corresponding ETF files together with the received and analyzed telemetering equipment data, various state data related to the operation of the background module and response data aiming at instructions of the foreground module, transmits the ETF files to the foreground module through the reverse isolation device, and displays the ETF files by the foreground module.
11. The method for interacting the commands and data across the zones under the power two-zone and three-zone safety isolation condition of claim 5, further comprising:
if the foreground module modifies the working parameters, the version number of the parameters is changed, and the version number and the modified working parameters are sent to the background module through the forward isolating device; the background module analyzes the version number after receiving the version number and replaces the previously stored version number.
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