CN111953703B - Gas turbine remote transmission system and method based on satellite communication - Google Patents
Gas turbine remote transmission system and method based on satellite communication Download PDFInfo
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- CN111953703B CN111953703B CN202010838633.5A CN202010838633A CN111953703B CN 111953703 B CN111953703 B CN 111953703B CN 202010838633 A CN202010838633 A CN 202010838633A CN 111953703 B CN111953703 B CN 111953703B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/22—Parsing or analysis of headers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
- H04B7/18513—Transmission in a satellite or space-based system
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/08—Protocols for interworking; Protocol conversion
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/12—Messaging; Mailboxes; Announcements
- H04W4/14—Short messaging services, e.g. short message services [SMS] or unstructured supplementary service data [USSD]
Abstract
The invention provides a gas turbine remote transmission system and a method based on satellite communication, wherein the system comprises: a gas turbine for generating operational data; the data transmitting terminal is used for acquiring the operating data of the gas turbine, converting the operating data of the gas turbine into satellite short message protocol data suitable for satellite transmission and transmitting the satellite short message protocol data; the data receiving end is used for receiving the satellite short message protocol data and inversely converting the satellite short message protocol data into the operating data of the gas turbine; and the service end is used for displaying the operating data of the gas turbine. The invention adopts the satellite short message communication technology to transmit, receive and process data, eliminates the hidden dangers of safety and confidentiality of the conventional wired communication mode, breaks through the space or region limitation, accords with the remote transmission requirement of the operating data of the gas turbine, innovates the application range of the civil field of the satellite communication system and has important significance for improving the reliability of the important operating data transmission of the gas turbine.
Description
Technical Field
The invention belongs to the technical field of gas turbines, relates to a transmission system and a transmission method, and particularly relates to a gas turbine remote transmission system and a gas turbine remote transmission method based on satellite communication.
Background
As an energy conversion device with wide application, the gas turbine has the advantages of less pollution, high efficiency, strong flexibility, compact structure and the like, is flexible to operate, is widely applied to the field of power generation, and has very important significance for production and life in terms of reliability, stability and economic operation.
In order to improve the stability and reliability of the operation process of the gas turbine and reduce the accident frequency, early warning monitoring and fault diagnosis of the gas turbine need to be enhanced. In the actual production process, a gas turbine data signal is generally transmitted to a remote monitoring center in a wired communication transmission mode, so that a power plant is assisted to interpret and analyze data and historical data, and data which can be converted into action is generated through interconnected equipment, so that the fault shutdown and outage time is shortened, and the service life of the gas turbine is prolonged.
The safety and the confidentiality of the conventional wired communication mode have hidden dangers and are easily limited by space or regions.
Therefore, how to provide a gas turbine remote transmission system and method based on satellite communication to solve the problem that the transmission is performed by a wired communication transmission method in the prior art, but the conventional wired communication method has the defects of potential safety and security, easy limitation of space or region and the like, and thus the problem becomes a technical problem to be solved by those skilled in the art.
Disclosure of Invention
In view of the above drawbacks of the prior art, an object of the present invention is to provide a gas turbine remote transmission system and method based on satellite communication, which are used to solve the problems that the prior art uses a transmission method of wired communication, but the conventional wired communication method has potential safety and security risks and is easily limited by space or region.
To achieve the above and other related objects, an aspect of the present invention provides a gas turbine remote transmission system based on satellite communication, including: a gas turbine for generating operational data; the data transmitting terminal is used for acquiring the operating data of the gas turbine, converting the operating data of the gas turbine into satellite short message protocol data suitable for satellite transmission and transmitting the satellite short message protocol data; the data receiving end is used for receiving the satellite short message protocol data and inversely converting the satellite short message protocol data into the operating data of the gas turbine; and the service end is used for displaying the operating data of the gas turbine.
In an embodiment of the present invention, the data sending end includes: the data acquisition unit is used for acquiring the operating data of the gas turbine, generating the OLE process control format operating data of the gas turbine and converting the OLE process control format operating data of the gas turbine into master/slave architecture protocol data; a transmission protocol conversion unit, configured to convert the master/slave architecture protocol data into the satellite short message protocol data; and the first communication unit is used for transmitting the satellite short message protocol data to a communication satellite.
In an embodiment of the invention, the gas turbine remote transmission system based on satellite communication further includes: the ground central station is in communication connection with the communication satellite and is used for transmitting the satellite short message protocol data to another communication satellite; and the ground network management center is connected with the ground central station.
In an embodiment of the present invention, the sending protocol converting unit is further configured to detect whether the master/slave architecture protocol data is received by using a round robin query method, if so, after detecting integrity of the master/slave architecture protocol data, analyze a type of the master/slave architecture protocol data, and store the type of the master/slave architecture protocol data in a buffer corresponding to the type of the master/slave architecture protocol data respectively.
In one embodiment of the present invention, the buffer is used for a global shared buffer for storing the gas turbine analog, the switching data, and various flags for buffer read/write control.
In an embodiment of the present invention, the first communication unit is further configured to transmit a protocol data packet with a data length exceeding a maximum packet length in the satellite short packet protocol data, and transmit the protocol data packet according to a data sequence number in the protocol data; after receiving, generating a plurality of data units, and putting the data units into a buffer area to wait for sending.
In an embodiment of the present invention, the data receiving end includes: the second communication unit is used for receiving satellite short message protocol data transmitted by another communication satellite; and the receiving protocol conversion unit is used for converting the satellite short message protocol data into the operation data of the OLE process control format of the gas turbine.
In an embodiment of the present invention, the data acquisition unit is in communication connection with the transmission protocol conversion unit through an RS485 interface; the transmission protocol conversion unit is in communication connection with the first communication unit through an RS232/RS485 interface; the receiving protocol conversion unit is in communication connection with the second communication unit through an RS232/RS485 interface; the server end is in communication connection with the receiving protocol conversion unit through an RJ45 interface.
In an embodiment of the present invention, the server is configured to analyze the operation data of the gas turbine, provide a configuration screen based on a browser/server mode, and display a customized display interface according to the display requirements of the gas turbine sequential control, regulation control and safety protection system.
The invention provides a gas turbine remote transmission method based on satellite communication, which comprises the following steps: generating operational data; collecting the operating data of the gas turbine, converting the operating data of the gas turbine into satellite short message protocol data suitable for satellite transmission, and sending the satellite short message protocol data; receiving the satellite short message protocol data, and inversely converting the satellite short message protocol data into the operating data of the gas turbine; displaying the operating data of the gas turbine.
As described above, the gas turbine remote transmission system and method based on satellite communication according to the present invention have the following advantages:
first, the gas turbine remote transmission system and method based on satellite communication provide data which can be converted into action for the gas turbine remote monitoring system, are used for reading and analyzing real-time data and historical data of the gas turbine, meet the remote transmission requirement of the gas turbine operation data, and contribute to improving the remote diagnosis level of the gas turbine.
Secondly, the gas turbine remote transmission system and method based on satellite communication are based on the satellite short message communication technology to perform gas turbine data acquisition, data transmission protocol conversion, data transmission, data reception protocol conversion, data processing and display, eliminate the potential safety and confidentiality hazards of the conventional wired communication mode, break through the space or region limitation, provide a standby channel for the conventional data transmission special line and have important significance for improving the reliability of the important operation data transmission of the gas turbine.
Thirdly, the gas turbine remote transmission system and the method based on the satellite communication organically combine the satellite communication system and the gas turbine remote monitoring system, apply the satellite communication to the gas turbine remote information transmission link for the first time, innovate the application range of the civil field of the satellite system, accord with the national military and civil integration requirement, and have positive significance for the implementation of the policy of 'cultivating military with civilian' of the communication satellite navigation system.
Drawings
FIG. 1A is a schematic illustration of a satellite communication based gas turbine engine remote transmission system according to an embodiment of the present invention.
FIG. 1B is a schematic block diagram of a satellite communication based gas turbine remote transmission system according to an embodiment of the present invention
FIG. 2 is a flow chart illustrating a method for transmitting a gas turbine engine over a satellite according to an embodiment of the present invention.
Description of the element reference numerals
1. Gas turbine based on satellite communication
Remote transmission system
11. Gas turbine
12. Data sending terminal
13. Communication satellite
14. Communication satellite
151. Ground central station
152. Ground network management center
16. Data receiving terminal
17. Service terminal
121. Data acquisition unit
122. Transmission protocol conversion unit
123. First communication unit
161. Second communication unit
162. Receiving protocol conversion unit
S21 to S26
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the features in the following embodiments and examples may be combined with each other without conflict.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the type, quantity and proportion of the components in actual implementation may be changed freely, and the layout of the components may be more complicated.
Example one
The embodiment provides a gas turbine remote transmission system based on satellite communication, which comprises:
a gas turbine for generating operational data;
the data transmitting terminal is used for acquiring the operating data of the gas turbine, converting the operating data of the gas turbine into satellite short message protocol data suitable for satellite transmission and transmitting the satellite short message protocol data;
the data receiving end is used for receiving the satellite short message protocol data and inversely converting the satellite short message protocol data into the operating data of the gas turbine;
and the service end is used for displaying the operating data of the gas turbine.
The gas turbine remote transmission system based on satellite communication provided by the embodiment will be described in detail with reference to the drawings. Referring to fig. 1A and 1B, a schematic view and a schematic structural diagram of a gas turbine remote transmission system based on satellite communication are shown in an embodiment. As shown in fig. 1A and 1B, the gas turbine remote transmission system 1 based on satellite communication includes: the system comprises a gas turbine 11, a data transmitting terminal 12, a communication satellite 13, a communication satellite 14, a ground central station 151, a ground network management center 152, a data receiving terminal 16 and a service terminal 17.
During operation of the gas turbine 11, operational data of the gas turbine is generated.
The data transmitting terminal 12 connected to the gas turbine 11 is configured to acquire operating data of the gas turbine, convert the operating data of the gas turbine into satellite short message protocol data suitable for satellite transmission, and transmit the satellite short message protocol data. Specifically, as shown in fig. 1A and 1B, the data sending end 12 includes a data acquisition unit 121, a sending protocol conversion unit 122, and a first communication unit 123.
In the present embodiment, the data collecting unit 121 communicatively connected to the gas turbine 11 through an RJ45 interface is configured to collect operation data of the gas turbine, generate OLE process control format (specifically, OPC format) operation data of the gas turbine, and convert the OLE process control format operation data of the gas turbine into master/slave architecture protocol data (specifically, modbus protocol).
The transmission protocol conversion unit 122, which is in communication connection with the data acquisition unit 121 through an RS485 interface, is configured to convert the master/slave architecture protocol data into the satellite short message protocol data.
Specifically, the sending protocol conversion unit 122 is further configured to detect whether the master/slave architecture protocol data is received by using a round robin query method, if so, after detecting the integrity of the master/slave architecture protocol data, analyze the type of the master/slave architecture protocol data, and store the type of the master/slave architecture protocol data in a buffer corresponding to the type according to the type of the master/slave architecture protocol data.
The transmission protocol conversion unit 122 stores the gas turbine analog quantity, the switching data, and the global shared buffer of various flags for buffer read/write control in the buffer. The read-write starting is realized through the mark, multi-module read-write is realized in one task, the multi-task does not need to be serialized and synchronized, the memory access conflict is not generated, and the response and conversion speed is high.
In this embodiment, the transmission protocol conversion unit 122 employs a transmission protocol converter.
The first communication unit 123, which is in communication connection with the transmission protocol conversion unit 122 through an RS232/RS485 interface, is configured to transmit the satellite short message protocol data to a communication satellite.
Specifically, the first communication unit is further configured to send a protocol data packet with a data length exceeding a maximum message length in the satellite short message protocol data, and transmit the protocol data packet according to a data sequence number in the protocol data to ensure integrity of data transmission; after receiving, generating a plurality of data units, putting the data units into a buffer area to wait for sending, and storing the data units through a read-write pointer. In order to avoid the problems of packet loss and disorder possibly occurring in the long message packet disassembly and assembly, 6 bytes are added before each disassembled sub-packet, 4 bytes are century seconds, 1 byte is the total packet number, 1 byte is the packet number, the total packet number is used for determining the sub-packet number needing to be assembled, the condition that the packet loss exists or not is judged, and the packet number is used for regulating the sub-packet recombination sequence, so that the disorder is avoided. The transmission efficiency of satellite short message communication is improved by adopting a small data sticky packet transmission mechanism, and the reliability of data transmission is ensured by applying a packet loss feedback retransmission mechanism.
In this embodiment, the first communication unit 123 is a transmitting terminal. The sending terminal machine is internally integrated with a multi-frequency antenna, a radio frequency module, a baseband processing multi-card array and a main control board, and the inside of the terminal machine is reasonably scheduled by a micro control unit to realize high-frequency data transmission and support a short message communication protocol. The normal operation data of the gas turbine is sent with a conventional sending frequency, and the emergency warning information or the fault information can be sent with a conventional sending frequency or a burst mode according to requirements. The regular transmission frequency is 30-60 seconds and 1 time, and when the information is transmitted in a burst mode, the transmission frequency can reach 1 time per second at the fastest.
Furthermore, the sending terminal has the functions of hardware starting, restarting, star searching, signal locking, signal detection and the like, and the data sending process comprises 2 steps of initializing the terminal and sending data packets. When the method is executed, the satellite communication module is started firstly, whether the satellite card is installed or not and the signal strength are detected, and then whether a data packet needs to be sent or not is inquired in a circulating mode. After initialization is finished, the satellite is automatically locked, card numbers, use frequency and signal strength are obtained, and if the signal strength is high, operations such as sending short messages, obtaining positions and obtaining time are allowed. If the signal intensity is low, the signal cannot be used.
The ground central station 151 is in communication connection with the communication satellite 13 and another communication satellite 14, and is configured to transmit the satellite short message protocol data to another communication satellite 14.
And the ground network management center 152 connected with the ground central station 151 completes wireless communication of the satellite short message protocol data together.
And the data receiving end 16 which is in communication connection with the other communication satellite 14 is used for receiving the satellite short message protocol data and inversely converting the satellite short message protocol data into the operating data of the gas turbine. Specifically, as shown in fig. 1A and 1B, the data receiving end 16 includes a second communication unit 161 and a receiving protocol conversion unit 162.
The second communication unit 161 is configured to receive satellite short message protocol data transmitted by another communication satellite.
In this embodiment, the second communication unit 161 is a receiving terminal, which is internally provided with a transceiver integrated dual-band antenna, a back-end multiplexer, a radio frequency module, a signal information processing module, and an encryption module, and has functions of positioning, communication, timing, monitoring and receiving, broadcasting, user authorization and security management, big data processing, full channel locking, and the like. The satellite short message communication protocol is supported, various encryption and decryption modes are compatible, and the ability of receiving all RD load satellite signals is achieved.
Furthermore, the receiving terminal machine and a certain number of ordinary user machines form a command group through system authorization, the positioning data and the short message communication content of the subordinate user machines are obtained, and the subordinate user sends a positioning result through a position report, so that the effect of commanding and managing the whole command group is achieved. The receiving terminal machine and the subordinate user machine both have RDSS functions.
The receiving protocol conversion unit 162 communicatively connected to the second communication unit 161 via an RS232/RS485 interface is configured to convert the satellite short message protocol data into OLE process control format operation data of the gas turbine.
The server 17 communicatively connected to the receiving protocol conversion unit 162 through an RJ45 interface is configured to receive the OLE process control format operation data transmitted by the second communication unit 162, analyze the OLE process control format operation data into operation data of the gas turbine, and display the operation data of the gas turbine.
Specifically, the server 17 is configured to analyze the operation data of the gas turbine, provide a configuration picture based on a browser/server mode, and display a customized display interface according to the display requirements of the gas turbine sequential control, regulation control and safety protection system.
It should be noted that the division of each unit of the above system is only a division of logical functions, and the actual implementation may be wholly or partially integrated into one physical entity, or may be physically separated. And the units can be realized in a form that all the units are called by the processing element through software, or in a form that all the units are called by the hardware, or in a form that part of the units are called by the processing element through software, or in a form that part of the units are called by the hardware. For example: the x unit can be a processing element which is established independently, and can also be integrated in one chip of the device. Furthermore, the x unit may be stored in the memory of the apparatus in the form of program codes, and may be called by a certain processing element of the apparatus to execute the functions of the x unit. The other units are implemented similarly. All or part of the units can be integrated together or can be independently realized. The processing element described herein may be an integrated circuit having signal processing capabilities. In implementation, the steps of the method or the units above may be implemented by hardware integrated logic circuits in a processor element or instructions in software. The above units may be one or more integrated circuits configured to implement the above methods, for example: one or more Application Specific Integrated Circuits (ASICs), one or more microprocessors (DSPs), one or more Field Programmable Gate Arrays (FPGAs), and the like. When one of the units is implemented in the form of a Processing element scheduler code, the Processing element may be a general-purpose processor, such as a Central Processing Unit (CPU) or other processor capable of calling program code. These units may be integrated together and implemented in the form of a System-on-a-chip (SOC).
The gas turbine remote transmission system based on the satellite communication has the following beneficial effects:
first, the gas turbine remote transmission system based on satellite communication according to the present embodiment provides data that can be converted into actions for the gas turbine remote monitoring system, so as to be used for interpretation and analysis of real-time data and historical data of the gas turbine, meet the remote transmission requirement of gas turbine operation data, and contribute to improving the remote diagnosis level of the gas turbine.
Secondly, the gas turbine remote transmission system based on satellite communication in this embodiment performs gas turbine data acquisition, data transmission protocol conversion, data transmission, data reception protocol conversion, data processing and display based on the satellite short message communication technology, eliminates the potential safety and security hazards of the conventional wired communication mode, breaks through the space or region limitation, can provide a backup channel for the conventional data transmission dedicated line, and has important significance for improving the reliability of the important operation data transmission of the gas turbine.
Thirdly, the gas turbine remote transmission system based on satellite communication in the embodiment organically combines the satellite communication system with the gas turbine remote monitoring system, and applies the satellite communication to the gas turbine remote information transmission link for the first time, so that the application range of the civil field of the satellite system is innovated, the national military and civil integration requirements are met, and the system has positive significance for implementing the policy of 'cultivating military with civilian' of the communication satellite navigation system.
Example two
Referring to fig. 2, a flow chart of an embodiment of a gas turbine remote transmission method based on satellite communication is shown. As shown in fig. 2, the gas turbine remote transmission method based on satellite communication specifically includes the following steps:
s21, generating the operation data of the gas turbine.
S22, collecting the operation data of the gas turbine, converting the operation data of the gas turbine into satellite short message protocol data suitable for satellite transmission, and sending the satellite short message protocol data.
Specifically, the S22 includes the steps of:
and acquiring the operating data of the gas turbine, generating the operating data of the gas turbine in an OLE process control format (specifically adopting an OPC format), and converting the operating data of the gas turbine in the OLE process control format into master/slave architecture protocol data (specifically adopting a Modbus protocol).
And converting the master/slave architecture protocol data into the satellite short message protocol data.
Specifically, whether the master/slave architecture protocol data are received or not is detected in a cyclic query mode, if yes, the type of the master/slave architecture protocol data is analyzed after the integrity of the master/slave architecture protocol data is detected, and the master/slave architecture protocol data are respectively stored in a buffer area corresponding to the type according to the type of the master/slave architecture protocol data. A global shared buffer storing gas turbine analog, switching data, and various flags for buffer read-write control in the buffer. The read-write starting is realized through the mark, multi-module read-write is realized in one task, the multi-task does not need to be serialized and synchronized, the memory access conflict is not generated, and the response and conversion speed is high.
And transmitting the satellite short message protocol data to a communication satellite.
S23, transmitting protocol data packets with the data length exceeding the maximum message length in the satellite short message protocol data, and transmitting according to the data sequence number in the protocol data to ensure the integrity of data transmission; after receiving, generating a plurality of data units, putting the data units into a buffer area to wait for sending, and storing the data units through a read-write pointer. In order to avoid the problems of packet loss and disorder possibly occurring in the long message packet disassembly and assembly, 6 bytes are added before each disassembled sub-packet, 4 bytes are century seconds, 1 byte is the total packet number, 1 byte is the packet number, the total packet number is used for determining the number of the sub-packets needing to be assembled, the condition that whether the packet loss exists or not is judged, and the packet number is used for stipulating the sub-packet reassembly sequence, so that the disorder is avoided. The transmission efficiency of satellite short message communication is improved by adopting a small data sticky packet transmission mechanism, and the reliability of data transmission is ensured by applying a packet loss feedback retransmission mechanism.
And S24, transmitting the satellite short message protocol data to another communication satellite.
And S25, receiving the satellite short message protocol data, and inversely converting the satellite short message protocol data into the operating data of the gas turbine.
Specifically, the S25 specifically includes the following steps:
and receiving satellite short message protocol data transmitted by another communication satellite.
And converting the satellite short message protocol data into the operation data of the OLE process control format of the gas turbine.
And S26, receiving the OLE process control format operation data, analyzing the OLE process control format operation data into operation data of the gas turbine, and displaying the operation data of the gas turbine.
Specifically, the step S26 includes parsing the operating data of the gas turbine, providing a configuration screen based on a browser/server mode, and displaying a customized display interface according to the display requirements of the gas turbine sequential control, regulation control and safety protection system.
The scope of the present invention is not limited to the execution sequence of the steps illustrated in the embodiment, and all the solutions of the prior art including the steps addition, subtraction and step replacement according to the principles of the present invention are included in the scope of the present invention.
The invention also provides a gas turbine remote transmission system based on satellite communication, which can realize the gas turbine remote transmission method based on satellite communication, but the realization device of the gas turbine remote transmission method based on satellite communication of the invention comprises but not limited to the structure of the gas turbine remote transmission system based on satellite communication listed in the embodiment, and all structural modifications and substitutions of the prior art made according to the principle of the invention are included in the protection scope of the invention.
In summary, the gas turbine remote transmission system and method based on satellite communication of the present invention have the following beneficial effects:
first, the gas turbine remote transmission system and method based on satellite communication provide data which can be converted into action for the gas turbine remote monitoring system, are used for reading and analyzing real-time data and historical data of the gas turbine, meet the remote transmission requirement of the gas turbine operation data, and contribute to improving the remote diagnosis level of the gas turbine.
Secondly, the gas turbine remote transmission system and method based on satellite communication provided by the invention are based on the satellite short message communication technology, and are used for carrying out gas turbine data acquisition, data transmission protocol conversion, data transmission, data reception protocol conversion, data processing and display, thereby eliminating the potential safety and security hazards of the conventional wired communication mode, breaking through the limitation of space or region, simultaneously providing a standby channel for the conventional data transmission special line, and having important significance for improving the reliability of the important operation data transmission of the gas turbine.
Thirdly, the gas turbine remote transmission system and the method based on the satellite communication organically combine the satellite communication system and the gas turbine remote monitoring system, apply the satellite communication to the gas turbine remote information transmission link for the first time, innovate the application range of the civil field of the satellite system, accord with the national military and civil integration requirement, and have positive significance for the implementation of the policy of 'cultivating military with civilian' of the communication satellite navigation system. The invention effectively overcomes various defects in the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (6)
1. A gas turbine remote transmission system based on satellite communication, comprising:
a gas turbine for generating operational data;
the data transmitting terminal is used for acquiring the operating data of the gas turbine, converting the operating data of the gas turbine into satellite short message protocol data suitable for satellite transmission and transmitting the satellite short message protocol data; the data transmitting end comprises:
the data acquisition unit is used for acquiring the operating data of the gas turbine, generating the OLE process control format operating data of the gas turbine and converting the OLE process control format operating data of the gas turbine into master/slave architecture protocol data; a transmission protocol conversion unit, configured to convert the master/slave architecture protocol data into the satellite short message protocol data; detecting whether the master/slave architecture protocol data are received or not by adopting a circular query mode, if so, analyzing the type of the master/slave architecture protocol data after detecting the integrity of the master/slave architecture protocol data, and respectively storing the type of the master/slave architecture protocol data into a buffer zone corresponding to the type of the master/slave architecture protocol data; a global shared buffer storing gas turbine analog, switching data and various flags for buffer read-write control in said buffer;
the first communication unit is used for transmitting the satellite short message protocol data to a communication satellite, and the transmitting the satellite short message protocol data to the communication satellite comprises an initialization step and a data packet transmitting step, wherein the initialization step comprises starting a satellite communication module, detecting satellite signal intensity and circularly inquiring whether a data packet needs to be transmitted or not, the data packet transmitting step comprises allowing the short message to be transmitted when the satellite signal intensity is high, transmitting protocol data sub-packets of which the data length exceeds the maximum message length in the satellite short message protocol data, adding 6 bytes before each split sub-packet, and transmitting according to a data serial number in the protocol data; after receiving, generating a plurality of data units, and putting the data units into a buffer area to wait for sending; wherein, 6 bytes include century second time of 4 bytes, total package number of 1 byte, package number of 1 byte;
the data receiving end is used for receiving the satellite short message protocol data and inversely converting the satellite short message protocol data into the operating data of the gas turbine;
and the service end is used for displaying the operating data of the gas turbine.
2. The satellite communication based gas turbine engine remote transmission system according to claim 1, further comprising:
the ground central station is in communication connection with the communication satellite and is used for transmitting the satellite short message protocol data to another communication satellite;
and the ground network management center is connected with the ground central station.
3. The satellite communication-based gas turbine engine long-range transmission system according to claim 1, wherein the data receiving end includes:
the second communication unit is used for receiving satellite short message protocol data transmitted by another communication satellite;
and the receiving protocol conversion unit is used for converting the satellite short message protocol data into the OLE process control format operation data of the gas turbine.
4. The satellite communication-based gas turbine engine remote transmission system according to claim 3, wherein the data acquisition unit is communicatively connected with the transmission protocol conversion unit through an RS485 interface;
the transmission protocol conversion unit is in communication connection with the first communication unit through an RS232/RS485 interface;
the receiving protocol conversion unit is in communication connection with the second communication unit through an RS232/RS485 interface;
the server end is in communication connection with the receiving protocol conversion unit through an RJ45 interface.
5. The satellite communication-based gas turbine engine remote transmission system according to claim 3, wherein the server is configured to parse the operating data of the gas turbine engine and provide a configuration screen based on a browser/server mode, and display a customized display interface according to the display requirements of the gas turbine engine sequence control, regulation control and safety protection system.
6. A gas turbine remote transmission method based on satellite communication is characterized by comprising the following steps:
generating operational data;
collecting the operating data of the gas turbine, converting the operating data of the gas turbine into satellite short message protocol data suitable for satellite transmission, and sending the satellite short message protocol data, wherein the method comprises the following steps: collecting the operating data of the gas turbine, generating the OLE process control format operating data of the gas turbine, and converting the OLE process control format operating data of the gas turbine into master/slave architecture protocol data;
converting the master/slave architecture protocol data into the satellite short message protocol data; detecting whether the master/slave architecture protocol data are received or not by adopting a cyclic query mode, if so, analyzing the type of the master/slave architecture protocol data after detecting the integrity of the master/slave architecture protocol data, and respectively storing the type of the master/slave architecture protocol data into a buffer area corresponding to the type of the master/slave architecture protocol data; a global shared buffer storing gas turbine analog, switching data and various flags for buffer read-write control in said buffer;
transmitting the satellite short message protocol data to a communication satellite, wherein the initialization step comprises the steps of starting a satellite communication module, detecting the satellite signal intensity and circularly inquiring whether a data packet needs to be transmitted or not, the data packet transmission step comprises the steps of allowing to transmit a short message when the satellite signal intensity is high, transmitting a protocol data sub-packet of which the data length exceeds the maximum message length in the satellite short message protocol data, adding 6 bytes in front of each split sub-packet, and transmitting according to a data serial number in the protocol data; after receiving, generating a plurality of data units, and putting the data units into a buffer area to wait for sending; wherein 6 bytes comprise century seconds of 4 bytes, total number of packets of 1 byte, packet number of 1 byte;
receiving the satellite short message protocol data, and inversely converting the satellite short message protocol data into the operating data of the gas turbine;
displaying the operating data of the gas turbine.
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