CN109194494B - Communication method, device and system based on inert gas system - Google Patents
Communication method, device and system based on inert gas system Download PDFInfo
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- CN109194494B CN109194494B CN201810690557.0A CN201810690557A CN109194494B CN 109194494 B CN109194494 B CN 109194494B CN 201810690557 A CN201810690557 A CN 201810690557A CN 109194494 B CN109194494 B CN 109194494B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/14—Network analysis or design
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0805—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability
- H04L43/0817—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability by checking functioning
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/02—Network architectures or network communication protocols for network security for separating internal from external traffic, e.g. firewalls
- H04L63/0272—Virtual private networks
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Abstract
The invention discloses a communication method, a communication device and a communication system based on an inert gas system, and belongs to the technical field of marine machinery. The communication method comprises the following steps: the monitoring system detects the state of equipment in the inert gas system to obtain the state data of the equipment; forming a communication data packet based on the state data of the equipment, wherein the communication data packet comprises the length of the communication data packet, an operation instruction of the state data, the resolution format of the communication data packet, the number of the equipment, the forming time of the communication data packet and the state data of the equipment; establishing a data transmission channel with an operation and maintenance center; and sending the communication data packet to the operation and maintenance center through the data transmission channel. According to the invention, the operation and maintenance center obtains the state data of the equipment in the inert gas system, so that the state of the equipment in the inert gas system can be known in time, further abnormality can be found and faults can be eliminated in time in the operation process of the inert gas system, and the stable operation of the inert gas system can be ensured.
Description
Technical Field
The invention relates to the technical field of marine machinery, in particular to a communication method, a communication device and a communication system based on an inert gas system.
Background
The Inert Gas System (IGS) can be applied to a crude oil tanker provided with an auxiliary boiler, and has the main functions of desulfurizing, dedusting and pressurizing flue Gas generated by the auxiliary boiler of a ship by using seawater to obtain Inert Gas with very stable chemical properties, pumping out the Inert Gas from the crude oil to replace goods and filling the goods into an oil tank of the oil tanker, so that the oxygen content of the oil tank is reduced to be below the lower explosion limit, thereby avoiding the explosion of the oil tank and realizing the protection of the crude oil tanker under various working conditions such as navigation, oil loading, oil drainage, tank sweeping, tank washing and the like.
The inert gas system is used as a production system for filling gas in an oil tank of a tanker and is a key core device on the tanker, so that the stable operation of the inert gas system is very important. Maintenance of the equipment in the inert gas system is typically performed by a service provider on board the tanker after the inert gas system is shipped.
In the process of implementing the invention, the inventor finds that the prior art has at least the following problems:
the oil tanker applied to the inert gas system generally works outside, and equipment manufacturers have few opportunities for maintaining and maintaining equipment in the inert gas system on the oil tanker, so that the abnormity and faults in the operation process of the inert gas system can not be discovered and eliminated in time, and the stable operation of the inert gas system is influenced.
Disclosure of Invention
The embodiment of the invention provides a communication method, a communication device and a communication system based on an inert gas system, which can solve the problem that the inert gas system cannot be maintained in time in the prior art. The technical scheme is as follows:
in one aspect, an embodiment of the present invention provides a communication method based on an inert gas system, where the communication method includes:
the monitoring system detects the state of equipment in the inert gas system to obtain the state data of the equipment;
forming a communication data packet based on the state data of the equipment, wherein the communication data packet comprises the length of the communication data packet, the operation instruction of the state data, the analysis format of the communication data packet, the number of the equipment, the forming time of the communication data packet and the state data of the equipment;
establishing a data transmission channel with an operation and maintenance center;
and sending the communication data packet to the operation and maintenance center through the data transmission channel.
Optionally, the communication data packet further includes a check code.
Optionally, fields occupying odd number of bytes are arranged together in the length of the communication data packet, the operation instruction of the status data, the parsing format of the communication data packet, the number of the device, and the forming time of the communication data packet.
Optionally, the data transmission channel is a virtual private network channel based on a secure socket layer.
In another aspect, an embodiment of the present invention provides a communication method based on an inert gas system, where the communication method includes:
the operation and maintenance center and the monitoring system establish a data transmission channel;
receiving a communication data packet sent by the monitoring system through the data transmission channel, wherein the communication data packet comprises the length of the communication data packet, an operation instruction of state data, an analysis format of the communication data packet, the number of equipment in the inert gas system, the forming time of the communication data packet and the state data of the equipment;
analyzing the communication data packet to obtain an operation instruction of the state data, the serial number of the equipment and the state data of the equipment;
and corresponding the state data of the equipment with the serial number of the equipment, and processing the state data of the equipment according to the operation instruction of the state data.
In another aspect, an embodiment of the present invention provides a communication method based on an inert gas system, where the communication method includes:
the operation and maintenance center forms a communication data packet, wherein the communication data packet comprises the length of the communication data packet, a control instruction of the equipment, the analytic format of the communication data packet, the serial number of the equipment in the inert gas system, the forming time of the communication data packet and the setting data of the equipment;
establishing a data transmission channel with a monitoring system;
and sending the communication data packet to the monitoring system through the data transmission channel.
In another aspect, an embodiment of the present invention provides a communication method based on an inert gas system, where the communication method includes:
the monitoring system and the operation and maintenance center establish a data transmission channel;
receiving a communication data packet sent by the operation and maintenance center through the data transmission channel, wherein the communication data packet comprises the length of the communication data packet, a control instruction of equipment, an analysis format of the communication data packet, the number of the equipment in the inert gas system, the forming time of the communication data packet and setting data of the equipment;
analyzing the communication data packet to obtain a control instruction of the equipment, a serial number of the equipment and setting data of the equipment;
and processing the equipment corresponding to the serial number of the equipment according to the control instruction of the equipment and the setting data of the equipment.
In yet another aspect, an embodiment of the present invention provides a communication device based on an inert gas system, including:
the detection module is used for carrying out state detection on equipment in an inert gas system to obtain state data of the equipment;
the processing module is used for forming a communication data packet based on the state data of the equipment, and the communication data packet comprises the length of the communication data packet, an operation instruction of the state data, the analysis format of the communication data packet, the number of the equipment, the forming time of the communication data packet and the state data of the equipment;
the establishing module is used for establishing a data transmission channel with the operation and maintenance center;
and the sending module is used for sending the communication data packet to the operation and maintenance center through the data transmission channel.
In yet another aspect, an embodiment of the present invention provides a communication device based on an inert gas system, including:
the establishing module is used for establishing a data transmission channel with the monitoring system;
the receiving module is used for receiving a communication data packet sent by the monitoring system through the data transmission channel, wherein the communication data packet comprises the length of the communication data packet, an operation instruction of state data, an analysis format of the communication data packet, the number of equipment in the inert gas system, the forming time of the communication data packet and the state data of the equipment;
the analysis module is used for analyzing the communication data packet to obtain an operation instruction of the state data, the serial number of the equipment and the state data of the equipment;
and the processing module is used for corresponding the state data of the equipment with the serial number of the equipment and processing the state data of the equipment according to the operation instruction of the state data.
In another aspect, an embodiment of the present invention provides a communication system based on an inert gas system, including:
the monitoring system is used for detecting the state of equipment in the inert gas system to obtain the state data of the equipment; forming a communication data packet based on the state data of the equipment, wherein the communication data packet comprises the length of the communication data packet, the operation instruction of the state data, the analysis format of the communication data packet, the number of the equipment, the forming time of the communication data packet and the state data of the equipment; establishing a data transmission channel with an operation and maintenance center; sending the communication data packet to the operation and maintenance center through the data transmission channel;
the operation and maintenance center is used for analyzing the communication data packet to obtain an operation instruction of the state data, the serial number of the equipment and the state data of the equipment; and corresponding the state data of the equipment with the serial number of the equipment, and processing the state data of the equipment according to the operation instruction of the state data.
The technical scheme provided by the embodiment of the invention has the following beneficial effects:
the state detection is carried out on equipment in the inert gas system through a monitoring system, the state data of the equipment is obtained, a communication data packet is formed based on the state data of the equipment, a data transmission channel is built with an operation and maintenance center at the same time, the communication data packet is sent to the operation and maintenance center through the data transmission channel, the operation and maintenance center analyzes the communication data packet, and the state data of the equipment in the inert gas system can be obtained, so that the state of the equipment in the inert gas system is known in time, and further, the abnormity is found and the fault is eliminated in time in the operation process of the inert gas system, the reliability of the equipment is improved, the stable operation of the inert gas system is ensured, and the service life of the equipment is prolonged. And the remote operation and maintenance of the inert gas system can be realized, and the maintenance cost of the inert gas system can be greatly reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a flow chart of a communication method based on an inert gas system according to an embodiment of the present invention;
FIG. 2 is a flow chart of another communication method based on an inert gas system according to an embodiment of the present invention;
FIG. 3 is a flow chart of another communication method based on an inert gas system according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a first communication data packet format according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a second communication data packet format according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a storage format of a communication data packet in a PLC according to a second implementation manner provided in the embodiment of the present invention;
FIG. 7 is a schematic diagram of communication between a monitoring system and an operation and maintenance center according to an embodiment of the present invention;
fig. 8 is a schematic diagram of an architecture of a VPN tunnel based on SSL according to an embodiment of the present invention;
FIG. 9 is a flow chart of yet another communication method based on an inert gas system according to an embodiment of the present invention;
FIG. 10 is a flow chart of yet another communication method based on an inert gas system according to an embodiment of the present invention;
FIG. 11 is a flowchart of an alternative communication method based on an inert gas system according to an embodiment of the present invention;
FIG. 12 is a schematic structural diagram of a communication device based on an inert gas system according to an embodiment of the present invention;
FIG. 13 is a schematic structural diagram of another communication device based on an inert gas system according to an embodiment of the present invention;
FIG. 14 is a schematic structural diagram of a communication system based on an inert gas system according to an embodiment of the present invention;
FIG. 15 is a schematic structural diagram of another communication device based on an inert gas system according to an embodiment of the present invention;
FIG. 16 is a schematic diagram of a communication device based on an inert gas system according to another embodiment of the present invention;
fig. 17 is a schematic structural diagram of another communication system based on an inert gas system according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
The embodiment of the invention provides a communication method based on an inert gas system, and an execution main body of the communication method can be a monitoring system of the inert gas system. Fig. 1 is a flowchart of a communication method based on an inert gas system according to an embodiment of the present invention, and referring to fig. 1, the communication method includes:
step 101: and detecting the state of the equipment in the inert gas system to obtain the state data of the equipment.
Step 102: based on the status data of the devices, communication packets are formed.
In the present embodiment, the communication packet includes the length of the communication packet, the operation instruction of the status data, the parsing format of the communication packet, the number of the device, the formation time of the communication packet, and the status data of the device.
Step 103: and establishing a data transmission channel with the operation and maintenance center.
Step 104: and sending a communication data packet to the operation and maintenance center through a data transmission channel.
According to the embodiment of the invention, the monitoring system is used for detecting the state of the equipment in the inert gas system to obtain the state data of the equipment, the communication data packet is formed based on the state data of the equipment, the data transmission channel is established with the operation and maintenance center, and the communication data packet is sent to the operation and maintenance center through the data transmission channel, so that the operation and maintenance center can know the state of the equipment in the inert gas system in time, and therefore, the abnormity can be found and the fault can be eliminated in time in the operation process of the inert gas system, the reliability of the equipment is improved, the stable operation of the inert gas system is guaranteed, and the service life of the equipment is prolonged. And the remote operation and maintenance of the inert gas system can be realized, and the maintenance cost of the inert gas system can be greatly reduced.
The embodiment of the invention provides another communication method based on an inert gas system, and an execution subject of the communication method can be an operation and maintenance center of the inert gas system. Fig. 2 is a flowchart of another communication method based on an inert gas system according to an embodiment of the present invention, and referring to fig. 2, the communication method includes:
step 201: and establishing a data transmission channel with the monitoring system.
Step 202: and receiving a communication data packet sent by the monitoring system through a data transmission channel.
In the present embodiment, the communication packet includes the length of the communication packet, the operation instruction of the status data, the parsing format of the communication packet, the number of the equipment in the inert gas system, the formation time of the communication packet, and the status data of the equipment.
Step 203: and analyzing the communication data packet to obtain the operation instruction of the state data, the serial number of the equipment and the state data of the equipment.
Step 204: and corresponding the state data of the equipment with the serial number of the equipment, and processing the state data of the equipment according to the operation instruction of the state data.
According to the embodiment of the invention, the operation and maintenance center and the monitoring system are used for establishing the data transmission channel, receiving the communication data packet sent by the monitoring system and analyzing the communication data packet to obtain the state data of the equipment in the inert gas system, so that the state of the equipment in the inert gas system can be known in time, further, the abnormity can be found and the fault can be eliminated in time in the operation process of the inert gas system, the reliability of the equipment can be improved, the stable operation of the inert gas system can be ensured, and the service life of the equipment can be prolonged. And the remote operation and maintenance of the inert gas system can be realized, and the maintenance cost of the inert gas system can be greatly reduced.
The embodiment of the invention provides a communication method based on an inert gas system, and an execution subject of the communication method can comprise a monitoring system of the inert gas system and an operation and maintenance center of the inert gas system. Fig. 3 is a flowchart of an interaction of a communication method based on an inert gas system according to another embodiment of the present invention, and referring to fig. 3, the communication method includes:
step 301: and the monitoring system detects the state of the equipment in the inert gas system to obtain the state data of the equipment.
Step 302: the monitoring system forms a communication data packet based on the status data of the device.
In the present embodiment, the communication packet includes the length of the communication packet, the operation instruction of the status data, the parsing format of the communication packet, the number of the device, the formation time of the communication packet, and the status data of the device.
Optionally, the communication data packet may further include a check code.
By adding the check code into the communication data packet, a sender and a receiver of the data can check the communication data packet, determine whether the code stream of the communication data packet is consistent with the check code, increase the safety of data transmission and simultaneously ensure the accuracy of data transmission. In practical application, the data packet is analyzed after the code stream of the communication data packet is confirmed to be consistent with the check code, otherwise, the data packet is discarded if the code stream of the communication data packet is inconsistent with the check code.
Specifically, the length of the communication data packet is the number of bytes of all fields of the data communication packet, including the length of the communication data packet. Assuming that the length of the communication data packet is 2 bytes, the operation instruction of the status data is 1 byte, the parsing format of the communication data packet is 1 byte, the number of the device is 16 bytes (including a device type of 2 bytes, a device serial number of 2 bytes, and a product job number of 12 bytes), the forming time of the communication data packet is 12 bytes, the status data of the device is 100 bytes, and the check code is 1 byte, then the length of the communication data packet is 2+1+ 2+12+100+1=133.
The operation instruction of the state data is the operation of the state data, such as uploading, downloading, inquiring and the like. For example, 0 represents upload, 1 represents download, and 2 represents query.
The parsing format of the communication data packet is a parsing mode of the state data, such as a default format, a JSON format, an XML format, and a JPG format. For example, 0 denotes a default format, 1 denotes a JSON format, 2 denotes an XML format, and 3 denotes a JPG format.
The serial number of the equipment comprises the equipment type, the equipment serial number and the product number. The equipment type is specifically the type spectrum number of the equipment, such as number 431 within the inert gas system. The equipment serial number is specifically the serial number of the product produced in the same type of product. The product job number is a number established for a product in an enterprise, and is coded by adopting a UTF-8 format, so that Chinese characters are converted into unique coded numbers.
The formation time of the communication data packet may be a long format (DTL) variable of date and time.
The type of status data of the device may be floating point, integer, boolean, etc.
The check code may be a result of summing up and negating all data before the check code according to bytes.
In a first implementation manner of this embodiment, fields occupying odd number of bytes may be arranged together in the length of the communication data packet, the operation instruction of the status data, the parsing format of the communication data packet, the number of the device, and the formation time of the communication data packet.
Or taking the length of the communication data packet as 2 bytes, the operation instruction of the status data as 1 byte, the parsing format of the communication data packet as 1 byte, the number of the device as 16 bytes (including the device type of 2 bytes, the device serial number of 2 bytes and the product job number of 12 bytes), the forming time of the communication data packet as 12 bytes, the status data of the device as N bytes, and the check code as 1 byte as an example, in the length of the communication data packet, the operation instruction of the status data, the parsing format of the communication data packet, the number of the device, and the forming time of the communication data packet, the operation instruction of the status data and the parsing format of the communication data packet occupy the fields of odd number of bytes, so that the operation instruction of the status data and the parsing format of the communication data packet are arranged together.
Fig. 4 is a schematic structural diagram of a first communication data packet format according to an embodiment of the present invention, and referring to fig. 4, a length (2 bytes) of a communication data packet, an operation instruction (1 byte) of status data, an analysis format (1 byte) of the communication data packet, a device type (2 bytes), a device serial number (2 bytes), a product job number (12 bytes), a forming time (12 bytes) of the communication data packet, status data (N bytes) of the device, and a check code (1 byte) are sequentially arranged. The operation instruction (1 byte) of the field state data occupying odd bytes is arranged together with the resolution format (1 byte) of the communication data packet.
In a second implementation manner of this embodiment, in the length of the communication data packet, the operation instruction of the status data, the parsing format of the communication data packet, the number of the device, and the formation time of the communication data packet, the fields occupying odd number of bytes and the fields occupying even number of bytes are arranged in a staggered manner.
Or, taking the length of the communication data packet as 2 bytes, the operation instruction of the status data as 1 byte, the parsing format of the communication data packet as 1 byte, the number of the device as 16 bytes (including the device type of 2 bytes, the device serial number of 2 bytes and the product job number of 12 bytes), the forming time of the communication data packet as 12 bytes, the status data of the device as N bytes, and the check code as 1 byte, in the length of the communication data packet, the operation instruction of the status data, the parsing format of the communication data packet, the number of the device, and the forming time of the communication data packet, the field occupying odd bytes is the operation instruction of the status data and the parsing format of the communication data packet, so that the field occupying even bytes, such as the device type (2 bytes), is arranged between the operation instruction of the status data and the parsing format of the communication data packet.
Fig. 5 is a schematic structural diagram of a second communication data packet format according to an embodiment of the present invention, and referring to fig. 5, a length (2 bytes) of a communication data packet, an operation instruction (1 byte) of status data, a device type (2 bytes), an analysis format (1 byte) of the communication data packet, a device serial number (2 bytes), a product job number (12 bytes), a forming time (12 bytes) of the communication data packet, status data (N bytes) of the device, and a check code (1 byte) are sequentially arranged. Wherein, the field device type (2 bytes) occupying even number of bytes is arranged between the operation instruction (1 byte) occupying odd number of bytes of field state data and the parsing format (1 byte) of the communication data packet.
In practical applications, the monitoring system is usually implemented by one or more Programmable Logic Controllers (PLC), such as S7-1200 or S7-1500. When the monitoring system is implemented by adopting a plurality of PLCs, all the state data can be transmitted to one PLC in a centralized manner, and the PLC transmits the state data to the operation and maintenance center in a unified manner.
Fig. 6 is a schematic structural diagram of a storage format of a communication data packet in the PLC according to a second implementation manner, and referring to fig. 6, a length (2 bytes) of the communication data packet, an operation instruction (2 bytes) of status data, a device type (2 bytes), an analysis format (2 bytes) of the communication data packet, a device serial number (2 bytes), a product job number (12 bytes), a formation time (12 bytes) of the communication data packet, and status data (N bytes) of the device and a check code (1 byte) are sequentially arranged. Although the operation command (2 bytes) of the status data and the analysis format (2 bytes) of the communication data packet occupy only 1 byte in the communication data packet, they occupy 2 bytes when stored in the PLC, and thus the entire communication data packet occupies 2 bytes more when stored in the PLC.
The main reason for this is that for a variable that occupies an even number of bytes of memory space, the start address of the memory address space of the variable in memory also starts with an even number (PLC memory byte address offset starts from 0 by default). The field of 'length of communication data packet' is designed to occupy 2 bytes, and in the opened memory address space, the 0 th byte and the 1 st byte are occupied; the 'operation instruction of state data' field is designed to occupy 1 byte; however, the field of the 'device type' is designed to occupy 2 bytes, the length of the field is an even number, and in the opened memory address space, the starting address must also be an even number and occupies 4 th byte to 5 th byte; therefore, the "operation instruction for status data" field occupies 2 bytes in the opened memory address space, i.e. the 3 rd byte is skipped. In this way, the "analytic format of the communication data packet" field also occupies 2 bytes in the opened memory address space.
Since the receiver of the communication data packet usually receives the communication data packet according to the format of the communication data packet, the size of the format of the communication data packet in the second implementation manner is not consistent with the size of the space occupied by the communication data packet stored in the PLC, which may cause the problem of data misalignment of the communication data packet, and increase the probability of communication errors. This also wastes bandwidth, slows communication, and can significantly reduce system performance if the inert gas system is located in remote areas where the communication signals are weak. Compared with the second implementation mode, the format size of the communication data packet of the first implementation mode is consistent with the size of the space occupied by the communication data packet in the PLC, and the communication data packet is stored in the PLC by combining the characteristics of a data storage mechanism of the control hardware PLC of the inert gas system, the length of the data packet is reduced to the greatest extent through the self-defined communication protocol, the bandwidth is effectively utilized, on one hand, the communication speed can be improved, on the other hand, the length of the remote communication data packet can be reduced under the condition of limited bandwidth of a remote area with weak communication signals, and the effective communication between the monitoring system and the operation and maintenance center is guaranteed. And the accuracy of communication can be improved.
Step 303: and the monitoring system and the operation and maintenance center establish a data transmission channel.
Alternatively, the data transmission channel may be a Virtual Private Network (VPN) channel based on a Secure Sockets Layer (SSL).
By adopting the VPN channel based on the SSL and establishing the safe encrypted special channel in the Internet, the data communicated between the monitoring system and the operation and maintenance center can be prevented from being directly exposed in the Internet, the data is prevented from being attacked by hackers or viruses during two-way transmission, the data is prevented from being stolen, tampered or lost and the condition that a data user does not know the data is prevented, the data safety is ensured, and the safety requirement of data communication is met.
Step 304: and the monitoring system sends a communication data packet to the operation and maintenance center through the data transmission channel.
Optionally, the communication data packet may be transmitted based on a Transmission Control Protocol (TCP)/Internet Protocol (IP) network communication Protocol, the occupied width is small, and the method is suitable for an application scenario where a ship where the inert gas system is located is usually located in a remote area where network signals are weak, and when the TCP/IP network communication Protocol is used for Transmission, the communication data packet carries an IP address and a port number of a sender, and after the receiver receives the communication data packet, the IP address and the port number of the sender can be conveniently obtained.
Fig. 7 is a schematic diagram of communication between the monitoring system and the operation and maintenance center according to an embodiment of the present invention, and referring to fig. 7, an SSL-based VPN tunnel 40 is established between the monitoring system 20 and the operation and maintenance center 30 based on the internet 10, and a data packet 50 is transmitted in the SSL-based VPN tunnel 40.
In specific implementation, a monitoring system usually initiates a connection request to an operation and maintenance center, establishes a VPN channel, and performs SSL encryption on the channel.
Fig. 8 is a schematic diagram of an architecture of a VPN path based on SSL according to an embodiment of the present invention, and referring to fig. 8, the VPN path based on SSL may be implemented by an OpenVPN, and a monitoring system 20 (IP address 192.168.0.15) accesses a public network 70 (IP address 27.17.51.10) through a router 60 (IP address 192.168.0.254), so as to access an operation and maintenance center 30 (IP address 192.168.16.136). In a specific implementation, the public network has the following mapping: 27.17.51.10, >192.168.16.136, 56789, where 56789 is an OpenVPN link port number.
After the channel is established, remote downloading, online debugging and data transmission can be performed between the monitoring system and the operation and maintenance center, and meanwhile, the communication safety is ensured.
Step 305: and the operation and maintenance center analyzes the communication data packet to obtain the operation instruction of the state data, the serial number of the equipment and the state data of the equipment.
Step 306: and the operation and maintenance center corresponds the state data of the equipment to the serial number of the equipment and processes the state data of the equipment according to the operation instruction of the state data.
In practical application, after acquiring the state data provided by the monitoring system, the operation and maintenance center can develop data applications such as alarming, early warning, short message sending of pre-alarm information, mail sending of pre-alarm information, historical state data analysis, equipment health state assessment and the like according to the state data, and actively inform shipowners, shipfactories, inert gas system manufacturers, engineers and the like of results based on the state data in time, and perform necessary and well-founded maintenance on equipment in the first time.
According to the embodiment of the invention, the monitoring system is used for detecting the state of the equipment in the inert gas system to obtain the state data of the equipment, the communication data packet is formed based on the state data of the equipment, the data transmission channel is established with the operation and maintenance center at the same time, the communication data packet is sent to the operation and maintenance center through the data transmission channel, and the operation and maintenance center analyzes the communication data packet to obtain the state data of the equipment in the inert gas system, so that the state of the equipment in the inert gas system is known in time, and further, the abnormality is found and the fault is eliminated in time in the operation process of the inert gas system, the reliability of the equipment is improved, the stable operation of the inert gas system is ensured, and the service life of the equipment is prolonged. And the remote operation and maintenance of the inert gas system can be realized, and the maintenance cost of the inert gas system can be greatly reduced.
The embodiment of the invention provides another communication method based on an inert gas system, and an execution main body of the communication method can be an operation and maintenance center of the inert gas system. Fig. 9 is a flowchart of another communication method based on an inert gas system according to an embodiment of the present invention, and referring to fig. 9, the communication method includes:
step 401: forming a communication data packet.
In the present embodiment, the communication packet includes the length of the communication packet, the operation instruction of the status data, the parsing format of the communication packet, the number of the equipment in the inert gas system, the formation time of the communication packet, and the status data of the equipment.
Step 402: and establishing a data transmission channel with the monitoring system.
Step 403: and sending a communication data packet to the monitoring system through the data transmission channel.
The embodiment of the invention provides a communication method based on an inert gas system, and an execution subject of the communication method can be a monitoring system of the inert gas system. Fig. 10 is a flowchart of a communication method based on an inert gas system according to another embodiment of the present invention, and referring to fig. 10, the communication method includes:
step 501: and establishing a data transmission channel with the operation and maintenance center.
Step 502: and receiving a communication data packet sent by the operation and maintenance center through a data transmission channel.
In the present embodiment, the communication packet includes the length of the communication packet, a control instruction of the device, the parsing format of the communication packet, the number of the device in the inert gas system, the formation time of the communication packet, and the setting data of the device.
Step 503: and analyzing the communication data packet to obtain a control instruction of the equipment, the serial number of the equipment and the setting data of the equipment.
Step 504: and processing the equipment corresponding to the serial number of the equipment according to the control instruction of the equipment and the setting data of the equipment.
The embodiment of the invention provides a communication method based on an inert gas system, and an execution main body of the communication method can comprise an operation and maintenance center of the inert gas system and a monitoring system of the inert gas system. Fig. 11 is a flowchart of an interaction of a communication method based on an inert gas system according to an embodiment of the present invention, and referring to fig. 11, the communication method includes:
step 601: the operation and maintenance center forms a communication data packet.
In the present embodiment, the communication packet includes the length of the communication packet, a control instruction of the device, the parsing format of the communication packet, the number of the device in the inert gas system, the formation time of the communication packet, and setting data of the device.
Step 602: and the operation and maintenance center and the monitoring system establish a data transmission channel.
Step 603: and the operation and maintenance center sends a communication data packet to the monitoring system through the data transmission channel.
Step 604: and the monitoring system analyzes the communication data packet to obtain a control instruction of the equipment, the serial number of the equipment and the setting data of the equipment.
Step 605: and the monitoring system processes the equipment corresponding to the serial number of the equipment according to the control instruction of the equipment and the setting data of the equipment.
After receiving the state data of the equipment sent by the monitoring system, the operation and maintenance center can send a control instruction and setting data of the equipment to the monitoring system according to the state data of the equipment so as to remotely control the field equipment, realize remote operation and maintenance of the inert gas system, timely find abnormality and remove faults, improve the reliability of the equipment and ensure stable operation of the inert gas system.
The embodiment of the invention provides a communication device based on an inert gas system, which is suitable for realizing the communication method based on the inert gas system shown in figure 1. Fig. 12 is a schematic structural diagram of a communication device based on an inert gas system according to an embodiment of the present invention, and referring to fig. 12, the communication device includes:
the detection module 701 is used for detecting the state of equipment in the inert gas system to obtain the state data of the equipment;
a processing module 702, configured to form a communication data packet based on the status data of the device, where the communication data packet includes a length of the communication data packet, an operation instruction of the status data, a parsing format of the communication data packet, a serial number of the device, a forming time of the communication data packet, and the status data of the device;
the establishing module 703 is configured to establish a data transmission channel with an operation and maintenance center;
and a sending module 704, configured to send the communication data packet to the operation and maintenance center through the data transmission channel.
The embodiment of the invention provides another communication device based on an inert gas system, which is suitable for realizing the communication method based on the inert gas system shown in fig. 2. Fig. 13 is a schematic structural diagram of another communication device based on an inert gas system according to an embodiment of the present invention, and referring to fig. 13, the communication device includes:
an establishing module 801, configured to establish a data transmission channel with a monitoring system;
a receiving module 802, configured to receive, through a data transmission channel, a communication data packet sent by a monitoring system, where the communication data packet includes a length of the communication data packet, an operation instruction of status data, an analysis format of the communication data packet, a serial number of a device in an inert gas system, a forming time of the communication data packet, and status data of the device;
the analyzing module 803 is configured to analyze the communication data packet to obtain an operation instruction of the status data, a serial number of the device, and the status data of the device;
the processing module 804 is configured to correspond the status data of the device to the serial number of the device, and process the status data of the device according to the operation instruction of the status data.
The embodiment of the invention provides a communication system based on an inert gas system, which is suitable for realizing the communication method based on the inert gas system shown in figure 3. Fig. 14 is a schematic structural diagram of a communication system based on an inert gas system according to an embodiment of the present invention, and referring to fig. 14, the communication system includes:
the monitoring system 901 is used for detecting the state of equipment in the inert gas system to obtain the state data of the equipment; forming a communication data packet based on the state data of the equipment, wherein the communication data packet comprises the length of the communication data packet, the operation instruction of the state data, the analysis format of the communication data packet, the number of the equipment, the forming time of the communication data packet and the state data of the equipment; establishing a data transmission channel with an operation and maintenance center; sending a communication data packet to an operation and maintenance center through a data transmission channel;
the operation and maintenance center 902 is used for analyzing the communication data packet to obtain an operation instruction of the state data, a serial number of the equipment and the state data of the equipment; and corresponding the state data of the equipment with the serial number of the equipment, and processing the state data of the equipment according to the operation instruction of the state data.
The embodiment of the invention provides another communication device based on an inert gas system, which is suitable for realizing the communication method based on the inert gas system shown in fig. 9. Fig. 15 is a schematic structural diagram of another communication device based on an inert gas system according to an embodiment of the present invention, and referring to fig. 15, the communication device includes:
a processing module 1001 for forming a communication packet, the communication packet including a length of the communication packet, an operation instruction of status data, an analysis format of the communication packet, a number of a device in the inert gas system, a formation time of the communication packet, and status data of the device;
an establishing module 1002, configured to establish a data transmission channel with a monitoring system;
a sending module 1003, configured to send a communication data packet to the monitoring system through the data transmission channel.
The embodiment of the invention provides another communication device based on an inert gas system, which is suitable for realizing the communication method based on the inert gas system shown in fig. 10. Fig. 16 is a schematic structural diagram of another communication device based on an inert gas system according to an embodiment of the present invention, and referring to fig. 16, the communication device includes:
the establishing module 1101 is used for establishing a data transmission channel with an operation and maintenance center;
the receiving module 1102 is configured to receive a communication data packet sent by the operation and maintenance center through a data transmission channel, where the communication data packet includes a length of the communication data packet, an operation instruction of status data, an analysis format of the communication data packet, a serial number of a device in the inert gas system, a forming time of the communication data packet, and status data of the device;
the analyzing module 1103 is configured to analyze the communication data packet to obtain an operation instruction of the status data, a serial number of the device, and status data of the device;
and the processing module 1104 is configured to correspond the status data of the device to the number of the device, and process the status data of the device according to the operation instruction of the status data.
The embodiment of the invention provides another communication system based on an inert gas system, which is suitable for realizing the communication method based on the inert gas system shown in fig. 11. Fig. 17 is a schematic structural diagram of another communication system based on an inert gas system according to an embodiment of the present invention, and referring to fig. 17, the communication system includes:
an operation and maintenance center 1201, configured to form a communication data packet, where the communication data packet includes a length of the communication data packet, an operation instruction of the status data, an analysis format of the communication data packet, a number of the device in the inert gas system, a forming time of the communication data packet, and status data of the device; establishing a data transmission channel with a monitoring system; sending a communication data packet to a monitoring system through a data transmission channel;
the monitoring system 1202 is configured to establish a data transmission channel with the operation and maintenance center; receiving a communication data packet sent by an operation and maintenance center through a data transmission channel, wherein the communication data packet comprises the length of the communication data packet, an operation instruction of state data, an analysis format of the communication data packet, the number of equipment in an inert gas system, the forming time of the communication data packet and the state data of the equipment; analyzing the communication data packet to obtain an operation instruction of the state data, the serial number of the equipment and the state data of the equipment; and corresponding the state data of the equipment with the serial number of the equipment, and processing the state data of the equipment according to the operation instruction of the state data.
It should be noted that: in the communication device based on the inert gas system provided in the above embodiment, when the communication device based on the inert gas system is used for communication, only the division of the above function modules is exemplified, and in practical applications, the above function distribution may be completed by different function modules according to needs, that is, the internal structure of the device is divided into different function modules, so as to complete all or part of the above described functions. In addition, the communication device based on the inert gas system provided by the above embodiment and the communication method embodiment based on the inert gas system belong to the same concept, and the specific implementation process thereof is described in the method embodiment and is not described herein again.
The above-mentioned serial numbers of the embodiments of the present invention are only for description, and do not represent the advantages and disadvantages of the embodiments.
It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, where the program may be stored in a computer-readable storage medium, and the storage medium may be a read-only memory, a magnetic disk or an optical disk.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. A communication method based on an inert gas system, the communication method comprising:
the monitoring system detects the state of equipment in the inert gas system to obtain the state data of the equipment;
forming a communication data packet based on the state data of the device, wherein the communication data packet comprises the length of the communication data packet, an operation instruction of the state data, an analysis format of the communication data packet, the number of the device, the forming time of the communication data packet and the state data of the device, the operation instruction of the state data and the analysis format of the communication data packet respectively occupy odd bytes, the length of the communication data packet, the number of the device and the forming time of the communication data packet respectively occupy even bytes, and fields occupying odd bytes are arranged together in the length of the communication data packet, the operation instruction of the state data, the analysis format of the communication data packet, the number of the device and the forming time of the communication data packet;
establishing a data transmission channel with an operation and maintenance center;
sending the communication data packet to the operation and maintenance center through the data transmission channel;
the monitoring system comprises one or more programmable logic controllers, the programmable logic controllers are used for storing the communication data packets, when the programmable logic controllers store variables occupying even bytes of memory space, the initial addresses of the storage address spaces of the variables in the memory are even numbers, and the offset of the memory address spaces starts from 0.
2. The communication method of claim 1, wherein the communication data packet further comprises a check code.
3. The communication method according to claim 1 or 2, wherein the data transmission channel is a virtual private network channel based on a secure socket layer.
4. A communication method based on an inert gas system, the communication method comprising:
the operation and maintenance center and the monitoring system establish a data transmission channel;
receiving a communication data packet sent by the monitoring system through the data transmission channel, wherein the communication data packet comprises the length of the communication data packet, an operation instruction of state data, an analysis format of the communication data packet, the number of equipment in an inert gas system, the forming time of the communication data packet and the state data of the equipment, the operation instruction of the state data and the analysis format of the communication data packet respectively occupy odd bytes, the length of the communication data packet, the number of the equipment and the forming time of the communication data packet respectively occupy even bytes, and fields occupying odd bytes are arranged together in the length of the communication data packet, the operation instruction of the state data, the analysis format of the communication data packet, the number of the equipment and the forming time of the communication data packet;
analyzing the communication data packet to obtain an operation instruction of the state data, the serial number of the equipment and the state data of the equipment;
the state data of the equipment corresponds to the serial number of the equipment, and the state data of the equipment is processed according to the operation instruction of the state data;
the monitoring system comprises one or more programmable logic controllers, the programmable logic controllers are used for storing the communication data packets, when the programmable logic controllers store variables occupying even bytes of memory space, the initial addresses of the storage address spaces of the variables in the memory are even numbers, and the offset of the memory address spaces starts from 0.
5. A communication device based on an inert gas system, the communication device comprising:
the detection module is used for carrying out state detection on equipment in the inert gas system to obtain state data of the equipment;
the processing module is used for forming a communication data packet based on the state data of the equipment, the communication data packet comprises the length of the communication data packet, an operation instruction of the state data, an analysis format of the communication data packet, the number of the equipment, the forming time of the communication data packet and the state data of the equipment, the operation instruction of the state data and the analysis format of the communication data packet respectively occupy odd bytes, the length of the communication data packet, the number of the equipment and the forming time of the communication data packet respectively occupy even bytes, and fields occupying odd bytes are arranged together in the length of the communication data packet, the operation instruction of the state data, the analysis format of the communication data packet, the number of the equipment and the forming time of the communication data packet;
the establishing module is used for establishing a data transmission channel between the monitoring system and the operation and maintenance center;
the sending module is used for sending the communication data packet to the operation and maintenance center through the data transmission channel;
the monitoring system comprises one or more programmable logic controllers, the programmable logic controllers are used for storing the communication data packets, when the programmable logic controllers store variables occupying even bytes of memory space, the initial addresses of the storage address spaces of the variables in the memory are even numbers, and the offset of the memory address spaces starts from 0.
6. A communication device based on an inert gas system, the communication device comprising:
the establishing module is used for establishing a data transmission channel with the monitoring system;
a receiving module, configured to receive, through the data transmission channel, a communication data packet sent by the monitoring system, where the communication data packet includes a length of the communication data packet, an operation instruction of status data, an analysis format of the communication data packet, a number of a device in an inert gas system, a forming time of the communication data packet, and status data of the device, the operation instruction of the status data and the analysis format of the communication data packet respectively occupy odd bytes, the length of the communication data packet, the number of the device, and the forming time of the communication data packet respectively occupy even bytes, and fields occupying odd bytes are arranged together in the length of the communication data packet, the operation instruction of the status data, the analysis format of the communication data packet, the number of the device, and the forming time of the communication data packet;
the analysis module is used for analyzing the communication data packet to obtain an operation instruction of the state data, the serial number of the equipment and the state data of the equipment;
the processing module is used for corresponding the state data of the equipment with the serial number of the equipment and processing the state data of the equipment according to the operation instruction of the state data;
the monitoring system comprises one or more programmable logic controllers, wherein the programmable logic controllers are used for storing the communication data packets, and when the programmable logic controllers store variables occupying even bytes of memory space, the initial addresses of the storage address spaces of the variables in the memory are even numbers, and the offset of the memory address spaces starts from 0.
7. A communication system based on an inert gas system, the communication system comprising:
the monitoring system is used for detecting the state of equipment in the inert gas system to obtain the state data of the equipment; forming a communication data packet based on the status data of the device, wherein the communication data packet comprises the length of the communication data packet, an operation instruction of the status data, the analysis format of the communication data packet, the number of the device, the forming time of the communication data packet and the status data of the device, the operation instruction of the status data and the analysis format of the communication data packet respectively occupy odd bytes, the length of the communication data packet, the number of the device and the forming time of the communication data packet respectively occupy even bytes, and fields occupying odd bytes are arranged together in the length of the communication data packet, the operation instruction of the status data, the analysis format of the communication data packet, the number of the device and the forming time of the communication data packet; establishing a data transmission channel with an operation and maintenance center; sending the communication data packet to the operation and maintenance center through the data transmission channel;
the operation and maintenance center is used for analyzing the communication data packet to obtain an operation instruction of the state data, the serial number of the equipment and the state data of the equipment; the state data of the equipment corresponds to the serial number of the equipment, and the state data of the equipment is processed according to the operation instruction of the state data;
the monitoring system comprises one or more programmable logic controllers, the programmable logic controllers are used for storing the communication data packets, when the programmable logic controllers store variables occupying even bytes of memory space, the initial addresses of the storage address spaces of the variables in the memory are even numbers, and the offset of the memory address spaces starts from 0.
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