CN113542030A - Intelligent networking method and communication device based on networking communication of fire fighting system - Google Patents
Intelligent networking method and communication device based on networking communication of fire fighting system Download PDFInfo
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- 230000006855 networking Effects 0.000 title claims abstract description 56
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- 238000012544 monitoring process Methods 0.000 claims description 16
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- 238000006243 chemical reaction Methods 0.000 description 5
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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
- H04L41/08—Configuration management of networks or network elements
- H04L41/0803—Configuration setting
- H04L41/0823—Configuration setting characterised by the purposes of a change of settings, e.g. optimising configuration for enhancing reliability
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
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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
- H04L41/08—Configuration management of networks or network elements
- H04L41/0866—Checking the configuration
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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
- H04L41/08—Configuration management of networks or network elements
- H04L41/0876—Aspects of the degree of configuration automation
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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
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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
- H04L43/18—Protocol analysers
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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
- 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
- H04L69/18—Multiprotocol handlers, e.g. single devices capable of handling multiple protocols
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40208—Bus networks characterized by the use of a particular bus standard
- H04L2012/40215—Controller Area Network CAN
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Abstract
The invention relates to an intelligent networking method and a communication device based on networking communication of a fire fighting system, wherein the communication device is provided with a control circuit board of a central processing unit, an annular buffer area is arranged in the central processing unit, the control circuit board is provided with a plurality of communication interfaces with different communication rates, and each communication interface completes communication through communication rate self-matching and communication protocol self-matching processes after network physical connection; communication rate self-matching checks the received communication frame data by using a preset communication rate to match; the communication protocol self-matching analyzes the source address of the recorded communication frame data; and then, sending a system synchronization frame to the host of the source address by using the address of 0 according to a corresponding communication protocol until a correct response frame is received. The invention can automatically match the speed and the communication protocol of the communication interface, can be used after connection without setting, improves the networking debugging efficiency, reduces the labor cost, improves the network communication efficiency, and enhances the reliability and the stability of communication.
Description
Technical Field
The invention relates to a security system, in particular to an intelligent networking method and a communication device based on networking communication of a fire-fighting system.
Background
Along with the development of social economy, the fire safety consciousness of people is continuously improved, the national management on fire safety is more and more strict, meanwhile, the function structure of a newly-built building is more and more complex, and required fire-fighting equipment is gradually subdivided according to the functions of the fire-fighting equipment to form subsystems, such as an automatic fire alarm system, an electric fire monitoring alarm system, a combustible gas monitoring alarm system, a fire-fighting power supply state monitoring system, a gas fire extinguishing control system, a fire door monitoring system, a residual pressure monitoring system, an emergency lighting and evacuation indication system and the like. The requirement of practical application and the requirement of national standard are both carried out on the centralized management and the distributed control of all the fire-fighting subsystems, so that the fire-fighting subsystems are networked uniformly, the interconnection and the defecation are integrated into the essential function of the fire-fighting system, the networking communication protocols of the system equipment produced by all fire-fighting equipment manufacturers in the industry at present adopt private protocols for various reasons and are not communicated with each other, and even the networking of a plurality of subsystems produced by part of manufacturers is difficult.
At present, networking of subsystems of various manufacturers in the industry or networking between hosts in the subsystems are mainly carried out by using a CAN bus, a CAN bus repeater or a CAN bus HUB is adopted in the networking to meet the networking communication requirement of the subsystems, the networking of the subsystems generally adopts a main joint to transmit the working state of the subsystems to realize simple communication interaction, so that the linkage requirement of the subsystems is met, or the networking communication protocol butt joint requirement of the subsystems is realized through temporary secondary development of networking communication in project development, and the networking communication protocol butt joint requirement of the subsystems cannot be realized in the two modes, namely the networking of the subsystems cannot realize the requirement of centralized management and distributed control on fire engineering construction, namely information interaction between the subsystems; the latter not only has high development cost for the temporary development of project implementation, but also delays the construction progress of fire-fighting engineering, has unstable system networking and poor reliability, and can not meet the guidance requirements of the latest national standard and the industrial technical specification.
Disclosure of Invention
Aiming at the existing defects, the invention provides an intelligent networking method and a communication device based on networking communication of a fire fighting system.
The technical scheme adopted by the invention for solving the technical problems is as follows: an intelligent networking method based on networking communication of a fire fighting system comprises a communication device for communication connection, wherein a plurality of communication interfaces with different communication rates are arranged on the communication device, and after network physical connection, each communication interface completes communication connection through communication rate self-matching and communication protocol self-matching processes in sequence;
the communication rate self-matching comprises the following steps:
s1a, the communication interface receives communication frame data;
s1b, checking the received communication frame data by using a preset communication rate, recording the communication frame data received by the communication interface when the check is passed, interrupting the processing of the communication frame data received by the communication interface when the check is wrong, and setting the communication interface to be in a monitoring state until the check is passed;
the communication protocol self-matching comprises the following steps:
s2a, parsing the source address of the communication frame data recorded in step S1b with the CAN Host bus communication protocol and the FECBUS communication protocol;
s2b, according to the corresponding communication protocol, sending a system synchronization frame to the host of the source address analyzed in the previous step by the address No. 0 until a correct response frame is received, the communication protocol is successfully matched, and corresponding matching information is recorded.
Preferably, the communication device is provided with a central processing unit having a ring buffer, and the communication frame data received by the communication interface is stored in the ring buffer after the verification in step S1b is passed.
Preferably, in step S2b, when the communication protocols match and do not match, the central processing unit converts the communication protocol of the communication interface and then matches the communication protocols.
Preferably, the verification of the communication frame data in step S1b is performed by performing enumeration listening to the received communication frame data at a preset communication rate.
Preferably, the communication rate of the communication interface is inversely proportional to the distance between the communication interface and the host to which it is communicatively coupled.
Preferably, the communication frame data recorded in step S1b includes a destination address and a source address.
The communication device comprises a control circuit board provided with a central processing unit, wherein an annular buffer area is arranged in the central processing unit, a plurality of communication interfaces which are electrically connected with the central processing unit and have different communication rates are arranged on the control circuit board, and the communication interfaces are communicated with an external host through communication rate self-matching and communication protocol self-matching after network physical connection.
Preferably, the communication rate self-matching is a process of performing enumeration monitoring by using a preset communication rate to verify communication frame data received by a communication interface, if the verification is passed, the communication frame data received by the communication interface is recorded, if the verification is wrong, the processing of the communication frame data received by the communication interface is interrupted, and the communication interface is set to a monitoring state until the verification is passed.
Preferably, the communication protocol self-matching is a process of analyzing a source address of communication frame data recorded in a communication interface by a CAN Host bus communication protocol and a FECBUS communication protocol, then sending a system synchronization frame to a Host of the analyzed source address by a number 0 address according to the corresponding communication protocol until a correct response frame is received to match the communication protocol, and recording corresponding matching information after the communication protocol is successfully matched.
Preferably, the communication rate of the communication interface is inversely proportional to the distance between the communication interface and the host to which it is communicatively coupled.
The invention has the beneficial effects that: the intelligent fire fighting system can automatically match the speed and the communication protocol of the communication interface, can be used after being connected without setting, improves the networking debugging efficiency, reduces the labor cost, improves the network communication efficiency, enhances the reliability and the stability of communication, enables each fire fighting subsystem and a host computer in the subsystem to conveniently, safely and reliably realize networking communication, and solves the problem of realizing centralized management and distributed control of the intelligent fire fighting system.
Drawings
FIG. 1 is a flow chart of matching communication rates and communication protocols of a communication interface according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of data interaction in a communication device according to an embodiment of the present invention;
Detailed Description
To more clearly illustrate the objects, technical solutions and advantages of the embodiments of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and embodiments, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without inventive step, are within the scope of the present invention. In addition, directional terms used in the present invention, such as "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc., refer to directions only as shown in the attached drawings, and are used for better and clearer explanation and understanding of the present invention, and do not indicate or imply orientation which the present invention must have, and thus, should not be construed as limiting the present invention.
The embodiment of the invention, as shown in fig. 1 and fig. 2, relates to an intelligent networking method based on networking communication of a fire-fighting system and a communication device, wherein the communication device for communication connection comprises a control circuit board provided with a central processing unit, an annular buffer area is arranged in the central processing unit, the central processing unit utilizes an intelligent low-power consumption embedded chip and is provided with a corresponding storage module, the storage module is internally provided with the annular buffer area, a plurality of communication interfaces which are electrically connected with the central processing unit and have different communication rates are arranged on the control circuit board, the communication interfaces adopt any one or more of a CAN bus communication interface, an RS485 interface and an RJ45 interface, the communication rates of the communication interfaces are different, for example, the communication interfaces are set to be A, B, C CAN bus communication interfaces, the interface A is connected with a centralized control host of a fire automatic alarm system at a rate of 100Kbps, the interface B adopts the speed of 50Kbps to connect the host of the emergency lighting and evacuation indicating system, the interface C adopts the speed of 20Kbps to connect the host of the fire door monitoring system, at the moment, the communication speed of the communication interface is in inverse proportion to the distance between the communication interface and the host which needs to be in communication connection, for example, the communication distance with the CAN bus speed of 100Kbps is about 600 meters, the communication distance with the CAN bus speed of 50Kbps CAN reach about 1000 meters, namely, the lower the CAN bus speed is, the longer the transmission distance is, networking of subsystems such as the fire door monitoring system and the like which need to be arranged on site CAN be carried out by adopting a low-speed communication mode to meet the requirement of remote networking communication, networking of a centralized control host of a fire automatic alarm system or a network communication main trunk of a fire-fighting linkage control host is carried out by adopting a high-speed communication mode in case of relatively short communication distance, the method can ensure the safety and reliability of network communication and save engineering cost. The communication interface is communicated with an external host through communication rate self-matching and communication protocol self-matching after network physical connection, namely, the communication interface is initialized, the self-matching of the communication rate and the communication protocol is the self-adaptive process of the communication rate and the communication protocol, CAN 2.0B is used as a communication link layer protocol, the communication rate self-matching is realized, and different communication interfaces CAN realize communication work at different rates; the communication protocol self-matching can realize protocol conversion to realize automatic matching when the communication protocols are different, namely, the communication device can intelligently identify according to the information received from the networking host (or subsystem) and automatically carry out adaptation protocol conversion, and any parameter does not need to be manually configured in engineering application, namely, the communication device can be used after receiving the information; the corresponding communication device CAN also be used for realizing CAN bus networking communication relay, ring networking and the like, each communication interface completes communication through the communication rate self-matching and communication protocol self-matching processes after network physical connection, so that the rate and the communication protocol of the communication interface CAN be automatically matched in communication connection without setting any parameter, and the communication is ready to use, thereby not only improving the networking debugging efficiency, but also reducing the labor cost, also improving the network communication efficiency, enhancing the reliability and stability of communication, ensuring that each fire fighting subsystem and a host machine in the subsystem CAN conveniently, safely and reliably realize networking communication, and solving the problems of realizing centralized management and distributed control of an intelligent fire fighting system; wherein the communication rate self-matching comprises the steps of:
s1a, the communication interface receives communication frame data, namely after the network is physically connected, namely after the communication device is connected with each subsystem host through a cable, the communication interface receives the communication frame data for information interaction;
s1b, checking the received communication frame data by a preset communication rate, when the communication frame data (communication information frame) received by the connected CAN bus interface is checked to be wrong, the communication interface immediately executes interruption of the communication frame receiving process, does not process the received communication frame data any more, sets the communication interface to a monitoring state, checks the communication frame data by performing enumeration monitoring on the received communication frame data through the preset communication rate, the preset communication rate CAN also be a rate calculated through a preset rate changing step length, the check is passed, namely the communication rate is matched, the rate is used as the communication rate of the interface, and simultaneously, according to the received communication information frame, the communication frame data received by the communication interface is recorded so as to be used for interactive application of information communication with other communication interfaces, communication frame data received by a communication interface is stored in a ring buffer area, a central processing unit CAN obtain an interface address (interface A, interface B or interface C) and a matched rate according to the corresponding relation between a destination address of a communication information frame and a corresponding CAN bus interface address by adopting a ring buffer area mode so as to send and receive data, the recorded communication frame data comprises the destination address and a source address of the communication information frame of the communication interface, the processing of the communication frame data received by the communication interface is interrupted by error checking, and the communication interface is set to be in a monitoring state until the communication frame data passes the checking, namely the communication rates are matched;
the communication protocol self-matching comprises the following steps:
s2a, analyzing the source address of the communication frame data recorded in the step S1b by using a CAN Host bus communication protocol and a FECBUS communication protocol, wherein the CAN Host networking communication protocol is a communication protocol of networking of all the existing fire-fighting subsystems, the FECBUS communication protocol is a communication protocol of networking communication of all the national standard fire-fighting subsystems, and the source address of the communication frame data is a Host address for sending the information frame;
s2b, sending a system synchronization frame to the host of the source address analyzed in the previous step by the address No. 0 according to the corresponding communication protocol, if a correct response frame CAN be received, the communication between the communication interface and the host of the source address adopts the communication protocol, after the correct response frame is received, the communication protocol is successfully matched, corresponding matching information is recorded for conversion of the communication information frame between the communication interfaces in the communication device, the communication protocol matched with the communication interface is obtained by sequentially adopting the same mode for other communication interfaces, if the communication protocol adopted by the communication interface matched with the destination address of the communication information frame is always matched with the communication protocol adopted by the communication interface matched with the source address host, clear forwarding is realized, protocol conversion is not needed, and the communication device CAN be applied as a CAN bus relay or HUB function; when the communication protocols are not matched, namely the communication protocol adopted by the communication interface matched with the destination address of the communication information frame is different from the communication protocol adopted by the communication interface matched with the source address host, the central processing unit converts the communication protocol of the communication interface and then matches the communication protocol, and the protocol conversion is carried out until a correct response frame is received, so that the matching of the communication protocols is completed.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.
Claims (10)
1. An intelligent networking method based on networking communication of a fire fighting system is characterized in that: the communication device is provided with a plurality of communication interfaces with different communication rates, and each communication interface completes communication through communication rate self-matching and communication protocol self-matching processes after network physical connection;
the communication rate self-matching comprises the following steps:
s1a, the communication interface receives communication frame data;
s1b, checking the received communication frame data by using a preset communication rate, recording the communication frame data received by the communication interface when the check is passed, interrupting the processing of the communication frame data received by the communication interface when the check is wrong, and setting the communication interface to be in a monitoring state until the check is passed; the communication protocol self-matching comprises the following steps:
s2a, parsing the source address of the communication frame data recorded in step S1b with the CAN Host bus communication protocol and the FECBUS communication protocol;
s2b, according to the corresponding communication protocol, sending a system synchronization frame to the host of the source address analyzed in the previous step by the address No. 0 until a correct response frame is received, the communication protocol is successfully matched, and corresponding matching information is recorded.
2. The intelligent networking method based on fire fighting system networking communication according to claim 1, wherein the communication device is provided with a central processing unit having a ring buffer, and the communication frame data received by the communication interface is stored in the ring buffer after the verification of step S1b is passed.
3. The fire fighting system networking communication-based intelligent networking method according to claim 2, wherein in the step S2b, when the communication protocols are not matched, the central processor converts the communication protocols of the communication interfaces and then matches the communication protocols.
4. The fire protection system networking communication-based intelligent networking method according to claim 1, wherein the verification of the communication frame data in the step S1b is performed by performing enumeration listening to receive the communication frame data at a preset communication rate.
5. The intelligent networking method based on fire fighting system networking communication of claim 1, wherein the communication rate of the communication interface is inversely proportional to the distance between the communication interface and the host to which the communication interface is communicatively connected.
6. The intelligent networking method based on fire fighting system networking communication according to claim 1, wherein the communication frame data recorded in the step S1b includes a destination address and a source address.
7. A communication device based on networking communication of a fire fighting system is characterized by comprising a control circuit board provided with a central processing unit, wherein an annular buffer area is arranged in the central processing unit, a plurality of communication interfaces which are electrically connected with the central processing unit and have different communication rates are arranged on the control circuit board, and the communication interfaces are communicated with an external host through communication rate self-matching and communication protocol self-matching after network physical connection.
8. The fire protection system networking communication-based communication device according to claim 7, wherein the communication rate self-matching is a process of performing enumeration monitoring by using a preset communication rate to verify communication frame data received by the communication interface, if the verification is passed, the communication frame data received by the communication interface is recorded, if the verification is passed, the processing of the communication frame data received by the communication interface is interrupted, and the communication interface is set to a monitoring state until the verification is passed.
9. The communication device based on fire protection system networking communication of claim 7, wherein the communication protocol self-matching is a process of parsing a source address of communication frame data recorded in the communication interface by a CAN Host bus communication protocol and a FECBUS communication protocol, then sending a system synchronization frame to a Host computer of the parsed source address by a number 0 address according to the corresponding communication protocol until a correct response frame is received to match the communication protocol, and recording corresponding matching information after the communication protocol is successfully matched.
10. The fire protection system networking communication-based communication device of claim 7, wherein the communication rate of the communication interface is inversely proportional to the distance between the communication interface and the host to which the communication interface is communicatively connected.
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Address after: 518000 the three floor of the new world apartment, Nanshan Avenue, Nanshan District, Shenzhen, Guangdong (for office only). Applicant after: Shenzhen hi tech investment Sanjiang Electronics Co.,Ltd. Address before: 518000 the three floor of the new world apartment, Nanshan Avenue, Nanshan District, Shenzhen, Guangdong (for office only). Applicant before: SHENZHEN FANHAI SANJIANG ELECTRONICS Co.,Ltd. |