CN107493136A - A kind of communication protocol conversion device and conversion method - Google Patents

A kind of communication protocol conversion device and conversion method Download PDF

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Publication number
CN107493136A
CN107493136A CN201710959177.8A CN201710959177A CN107493136A CN 107493136 A CN107493136 A CN 107493136A CN 201710959177 A CN201710959177 A CN 201710959177A CN 107493136 A CN107493136 A CN 107493136A
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China
Prior art keywords
module
arm processor
signal
communication protocol
protocol conversion
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Granted
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CN201710959177.8A
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Chinese (zh)
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CN107493136B (en
Inventor
刘明星
马权
罗琦
吴志强
王松
秦官学
王远兵
曾少立
梁建
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CHINA NUCLEAR CONTROL SYSTEM ENGINEERING Co.,Ltd.
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Nuclear Power Institute of China
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Priority to CN201710959177.8A priority Critical patent/CN107493136B/en
Publication of CN107493136A publication Critical patent/CN107493136A/en
Application granted granted Critical
Publication of CN107493136B publication Critical patent/CN107493136B/en
Active legal-status Critical Current
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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Application independent communication protocol aspects or techniques in packet data networks
    • H04L69/08—Protocols for interworking or protocol conversion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/25—Arrangements specific to fibre transmission
    • H04B10/2589—Bidirectional transmission
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic regulation in packet switching networks
    • H04L47/50—Queue scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic regulation in packet switching networks
    • H04L47/50—Queue scheduling
    • H04L47/62—General aspects
    • H04L47/622—Queue service order
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Application independent communication protocol aspects or techniques in packet data networks
    • H04L69/22—Header parsing or analysis

Abstract

The invention discloses a kind of communication protocol conversion device and conversion method, including：Arm processor, for being communicated with engineer station, using with engineer station's identical communication protocol, complete unpacking when being communicated with engineer station, package；FPGA module use with safety class equipment identical communication protocol, with arm processor, the first optic module difference signal be connected；FPGA module is used to receive the signal of arm processor and transmitted after protocol conversion to the first optic module；For receiving the signal of the first optic module and being transmitted after protocol conversion to arm processor；First optic module is used to the electric signal of FPGA module being converted to optical signal, communicated by optical signal with safety class equipment.It is an object of the invention to provide a kind of communication protocol conversion device and conversion method, to solve the problems, such as that conversion equipment of the prior art is integrated in small space and severe jamming be present, the purpose for improving isolation effect, can also having in small space stable communication quality is realized.

Description

A kind of communication protocol conversion device and conversion method
Technical field
The present invention relates to I＆C system field, and in particular to a kind of communication protocol conversion device and conversion method.
Background technology
In nuclear power field digitizes I＆C system, engineer station and safety class equipment use different communication protocols View, engineer station will download configuration to safety class equipment, and the status data of safety class equipment needs to upload to engineer station, So the conversion of communication protocol must be carried out in transmitting procedure, when carrying out the conversion of communication protocol, it is necessary to meet security, The requirement of reliabilty and availability.With the development of digitlization instrument control technology, the miniaturization of control system, the space for equipment The more and more higher such as performance requirement；Simultaneously as electronic equipment increases, the complication degree of use environment is caused quickly to carry Height, higher requirement is proposed for the safety and reliability of equipment.With the raising of traffic rate, the increase of data volume, For the performance requirement also more and more higher of communication equipment.However, the existing communication protocol for being used to digitize in I＆C system turns Changing device is mostly complicated, severe jamming between each other be present if being integrated in small space.
The content of the invention
It is of the prior art to solve it is an object of the invention to provide a kind of communication protocol conversion device and conversion method Conversion equipment, which is integrated in small space, has the problem of severe jamming, realizes and improves isolation effect, can also have in small space There is the purpose of stable communication quality.
The present invention is achieved through the following technical solutions：
A kind of communication protocol conversion device, including：
Arm processor, for being communicated with engineer station, using with engineer station's identical communication protocol, complete with Unpacking, package when engineer station communicates；
FPGA module, using with safety class equipment identical communication protocol, with arm processor, the first optic module distinguish Signal connects；The FPGA module is used to receive the signal of arm processor and transmitted after protocol conversion to the first optic module； For receiving the signal of the first optic module and being transmitted after protocol conversion to arm processor；
First optic module, for the electric signal of FPGA module to be converted into optical signal, set by optical signal and safe level It is standby to be communicated.
It is integrated in for conversion equipment in the prior art in small space and the problem of severe jamming is present, inventor is through excessive Think after amount analysis and research, existing conversion equipment is changed in lower dress and feedback procedure by identical part, causes phase Serious interference between mutually, so as to cause inconvenience to be integrated in narrow space.Therefore, the present invention proposes a kind of communication Protocol Conversion Device, including arm processor, FPGA module, the first optic module.Arm processor, is called and does risc microcontroller, and full name is Acorn RISC Machine, used in the present invention and engineer station's identical communication protocol, realization and engineer station Between direct communication.FPGA module, i.e. field programmable gate array module, are used and safe level in the present invention Equipment identical communication protocol, realize the communication between safety class equipment.The present apparatus uses the first optic module and safe level Equipment is directly communicated, and is easy to realize the efficient conversion of electric signal and optical signal by the first optic module, it is ensured that transmission Performance.When engineer station will download configuration to safety class equipment, engineer station's signal is received by arm processor, at ARM Reason device is transmitted to the FPGA module after unpacking, and data are re-started into package, simultaneously according to self communication agreement by FPGA module Transmit to the first optic module, the first optic module and the electric signal received is converted into optical signal, transmit to safety class equipment. When the status data of safety class equipment needs to upload to engineer station, safety class equipment sends status number to the first optic module According to bag, transmitted after packet is converted into electric signal by optical signal by the first optic module to FPGA module, will by FPGA module Packet is unsealed and transmitted to arm processor, is re-started package according to self communication agreement by arm processor and is passed Transport to engineer station.The control method that the present invention is combined using arm processor and FPGA module, in lower dress and feedback procedure Protocol conversion is independently carried out, and both are no longer carried out simultaneously by same part, therefore mutual interference is extremely low, so as to realize Protocol conversion isolation in lower dress and feedback procedure, enabling whole device is integrated in narrow space and used, Simultaneously because interference significantly reduces between each other, therefore stable communication quality is also can ensure that compared to prior art.
Further, level converter, the level conversion are connected between the FPGA module and the first optic module Device is used to the signal of FPGA module being converted to differential level signal.It is to use a transmission line in-phase signal, separately A piece biography inversion signal so that difference is maximum, and jamproof ability is further improved with this.
Further, in addition to physical chip, the physical chip respectively with arm processor, the second optic module Connection；The physical chip is used to the data signal of arm processor being converted to level signal, and second optic module is used Transmitted in the level signal of physical chip is converted into optical signal to engineer station.It is in engineer station and arm processor Between set and set gradually the second optic module, physical chip, using the second optic module enter traveling optical signal and electric signal it Between switching, carry out signal conversion using physical chip, be easy to signal to transmit, at the same enable to the efficiency of data transfer with Stability can have great lifting, it is ensured that the communication quality between the present apparatus and engineer station.Wherein physical chip uses Existing physical chip, will not be described here.
Preferably, it is attached between the arm processor and FPGA module by external storage interface.External storage Device interface, i.e. EMIF interfaces, the data swapped thereon are that both sides are solved by arm processor, FPGA module respectively Data after bag, therefore the effect of communication isolating can also be reached by external storage interface.
Preferably, optical fiber is used between the arm processor and engineer station as communication media.Transmitted by optical fiber Mode improves stability, realizes the effect of electrical isolation.
Preferably, in addition to metal shell, the arm processor, FPGA module, the first optic module are respectively positioned on outside metal In shell.Shielded by metal shell, avoid external electromagnetic interference, the effect of physical shielding of the present invention is ensured with this.
Preferably, the metal shell surface sets power interface, and the power interface is used for for arm processor, FPGA Module, the power supply of the first optic module.Power supply is accessed by power interface, so as to be easily the equipment inside metal shell It is powered so that this equipment can be moved flexibly and easily；Additionally it is possible to series-connection power supplies are protected in power interface Module, surge protection module etc., so as to avoid surge phenomenon from causing to do to arm processor, FPGA module, first optic module etc. Disturb, the stability of data transfer is further improved with this.
Preferably, two First Input First Outputs of generation in the FPGA module, two First Input First Outputs be respectively used to Signal transmission between arm processor, the first optic module.Two First Input First Outputs are generated in FPGA module, for delaying Deposit the data for receiving and sending so that data transfer is more stable, avoids data congestion, realizes channel separation.
Also include the debugging interface being connected with the arm processor.Allow staff by debugging interface to this Invention is debugged on the spot, improves the ease of use of the present invention.
A kind of communication protocol conversion method, use the arm processor with engineer station with the same communications protocols；With safety Level equipment has the FPGA module of the same communications protocols；Conversion includes lower dress process, feedback procedure：
Lower dress process：Engineer station's signal is received using the arm processor, transmitted after being unpacked by arm processor to institute FPGA module is stated, data are re-started into package according to self communication agreement by FPGA module and transmitted to the first optic module, The electric signal received is converted to optical signal by the first optic module, is transmitted to safety class equipment；
Feedback procedure：Safety class equipment sends state data packets to the first optic module, by the first optic module by data Bag is transmitted to FPGA module after being converted to electric signal by optical signal, and packet is unsealed and transmitted to ARM by FPGA module Processor, package is re-started according to self communication agreement by arm processor and is transmitted to engineer station.
This method is combined using arm processor and FPGA module and is controlled, and the agreement in lower dress and feedback procedure turns Change independent progress, both are no longer carried out simultaneously by same part, therefore mutual interference is extremely low, so as to realize it is lower dress and Protocol conversion isolation in feedback procedure, enabling whole device is integrated in narrow space and used, while by Significantly reduced in mutual interference, therefore stable communication quality is also can ensure that compared to prior art.
The present invention compared with prior art, has the following advantages and advantages：
1st, a kind of communication protocol conversion device of the present invention and conversion method, when engineer station will be carried out down to safety class equipment When assembling is put, engineer station's signal is received by arm processor, arm processor is transmitted to the FPGA module, by FPGA after unpacking Data are re-started package and transmitted to the first optic module, the first optic module and will connect by module according to self communication agreement The electric signal received is converted to optical signal, transmits to safety class equipment.When the status data of safety class equipment needs to upload to work During Cheng Shizhan, safety class equipment sends state data packets to the first optic module, is believed packet by light by the first optic module Transmitted after number being converted to electric signal to FPGA module, packet is unsealed and transmitted to arm processor by FPGA module, by Arm processor re-starts package according to self communication agreement and transmitted to engineer station.The present invention using arm processor and The control method that FPGA module is combined, lower dress and the protocol conversion in feedback procedure are independently carried out, and both are no longer by same Part is carried out simultaneously, therefore mutual interference is extremely low, so as to realize the protocol conversion isolation in lower dress and feedback procedure, is made Obtain whole device can be integrated in narrow space and used, simultaneously because interference significantly reduces between each other, therefore Stable communication quality is also can ensure that compared to prior art.
2nd, a kind of communication protocol conversion device of the present invention, is connect between arm processor and FPGA module by external storage Mouth is attached.The data swapped on external storage are that both sides are solved by arm processor, FPGA module respectively Data after bag, therefore the effect of communication isolating can also be reached by external storage interface.
3rd, a kind of communication protocol conversion device of the present invention, two First Input First Outputs are generated in FPGA module, for delaying Deposit the data for receiving and sending so that data transfer is more stable, avoids data congestion, realizes channel separation.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding the embodiment of the present invention, forms one of the application Point, do not form the restriction to the embodiment of the present invention.In the accompanying drawings：
Fig. 1 is the connection block diagram of the specific embodiment of the invention；
Fig. 2 is the local connection block diagram of FPGA module in the specific embodiment of the invention.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, with reference to embodiment and accompanying drawing, to this Invention is described in further detail, and exemplary embodiment of the invention and its explanation are only used for explaining the present invention, do not make For limitation of the invention.
Embodiment 1：
A kind of communication protocol conversion device as shown in Figure 1, including：Arm processor, for being led to engineer station Letter, using with engineer station's identical communication protocol, complete unpacking when being communicated with engineer station, package；FPGA module, use With safety class equipment identical communication protocol, it is connected with arm processor, the first optic module difference signal；The FPGA module For receiving the signal of arm processor and being transmitted after protocol conversion to the first optic module；For receiving the first optic module Signal and transmitted after protocol conversion to arm processor；First optic module, for the electric signal of FPGA module to be converted to Optical signal, communicated with safety class equipment by optical signal.When engineer station will download configuration to safety class equipment, Engineer station's signal is received by arm processor, arm processor is transmitted to the FPGA module after unpacking, by FPGA module by number According to re-starting package according to self communication agreement and transmit the electricity that will be received to the first optic module, the first optic module Signal is converted to optical signal, transmits to safety class equipment.When the status data of safety class equipment needs to upload to engineer station, Safety class equipment sends state data packets to the first optic module, and packet is converted into electricity by optical signal by the first optic module Transmitted after signal to FPGA module, packet is unsealed and transmitted to arm processor by FPGA module, by arm processor Package is re-started according to self communication agreement and is transmitted to engineer station.
Embodiment 2：
A kind of communication protocol conversion device as shown in Figures 1 and 2, Blocked portion is represented in FPGA module in wherein Fig. 2 The signal transmission relation in portion.The present embodiment connects level on the basis of embodiment 1 between FPGA module and the first optic module Conversion equipment, the level converter are used to the signal of FPGA module being converted to differential level signal.Also include physical layer Chip, the physical chip are connected with arm processor, the second optic module respectively；The physical chip is used at ARM The data signal of reason device is converted to level signal, and second optic module is used to be converted to the level signal of physical chip Optical signal outwards transmits.It is attached between the arm processor and FPGA module by external storage interface.The ARM Optical fiber is used between processor and engineer station as communication media.Also include metal shell, the arm processor, FPGA moulds Block, the first optic module are respectively positioned in metal shell.The metal shell surface sets power interface, and the power interface is used for For arm processor, FPGA module, the power supply of the first optic module.Two First Input First Outputs of generation in the FPGA module, two First Input First Output is respectively used to transmit to the signal between arm processor, the first optic module.Also include with the ARM Manage the connected debugging interface of device.Signal conversion is carried out using physical chip, is easy to outwards be transmitted, while enable to count There can be great lifting according to the efficiency and stability of transmission, it is ensured that the present apparatus and extraneous communication quality.In external storage On the data that swap be data after both sides are unpacked by arm processor, FPGA module respectively, therefore pass through outside Holder interface can also reach the effect of communication isolating.Two First Input First Outputs are generated in FPGA module, for caching The data for receiving and sending so that data transfer is more stable, avoids data congestion, realizes channel separation.
Embodiment 3：
A kind of communication protocol conversion method, use the arm processor with engineer station with the same communications protocols；With safety Level equipment has the FPGA module of the same communications protocols；Conversion includes lower dress process, feedback procedure：
Lower dress process：Engineer station's signal is received using the arm processor, transmitted after being unpacked by arm processor to institute FPGA module is stated, data are re-started into package according to self communication agreement by FPGA module and transmitted to the first optic module, The electric signal received is converted to optical signal by the first optic module, is transmitted to safety class equipment；
Feedback procedure：Safety class equipment sends state data packets to the first optic module, by the first optic module by data Bag is transmitted to FPGA module after being converted to electric signal by optical signal, and packet is unsealed and transmitted to ARM by FPGA module Processor, package is re-started according to self communication agreement by arm processor and is transmitted to engineer station.
Above-described embodiment, the purpose of the present invention, technical scheme and beneficial effect are carried out further Describe in detail, should be understood that the embodiment that the foregoing is only the present invention, be not intended to limit the present invention Protection domain, within the spirit and principles of the invention, any modification, equivalent substitution and improvements done etc., all should include Within protection scope of the present invention.

Claims (10)

  1. A kind of 1. communication protocol conversion device, it is characterised in that including：
    Arm processor, for being communicated with engineer station, using with engineer station's identical communication protocol, complete and engineering Unpacking, package during the communication of teacher station；
    FPGA module, using with safety class equipment identical communication protocol, with arm processor, the first optic module difference signal Connection；The FPGA module is used to receive the signal of arm processor and transmitted after protocol conversion to the first optic module；For Receive the signal of the first optic module and transmitted after protocol conversion to arm processor；
    First optic module, for the electric signal of FPGA module to be converted into optical signal, entered by optical signal and safety class equipment Row communication.
  2. 2. a kind of communication protocol conversion device according to claim 1, it is characterised in that the FPGA module and the first light Level converter is connected between fiber module, the level converter is used to the signal of FPGA module being converted to differential level Signal.
  3. 3. a kind of communication protocol conversion device according to claim 1, it is characterised in that also including physical chip, institute Physical chip is stated to be connected with arm processor, the second optic module respectively；The physical chip is used for arm processor Data signal is converted to level signal, and second optic module is used to the level signal of physical chip being converted to optical signal Transmitted to engineer station.
  4. 4. a kind of communication protocol conversion device according to claim 1, it is characterised in that the arm processor and FPGA It is attached between module by external storage interface.
  5. 5. a kind of communication protocol conversion device according to claim 1, it is characterised in that the arm processor and engineering Teacher uses optical fiber as communication media between station.
  6. 6. a kind of communication protocol conversion device according to claim 1, it is characterised in that described also including metal shell Arm processor, FPGA module, the first optic module are respectively positioned in metal shell.
  7. 7. a kind of communication protocol conversion device stated according to claim 6, it is characterised in that the metal shell surface sets electricity Source interface, the power interface are used for for arm processor, FPGA module, the power supply of the first optic module.
  8. A kind of 8. communication protocol conversion device according to claim 1, it is characterised in that two elder generations of generation in the FPGA module Enter first dequeue, two First Input First Outputs are respectively used to transmit to the signal between arm processor, the first optic module.
  9. 9. a kind of communication protocol conversion device according to claim 1, it is characterised in that also include and the arm processor phase Debugging interface even.
  10. 10. a kind of communication protocol conversion method, it is characterised in that have using with engineer station at the ARM of the same communications protocols Manage device；There is the FPGA module of the same communications protocols with safety class equipment；Conversion includes lower dress process, feedback procedure：
    Lower dress process：Engineer station's signal is received using the arm processor, transmitted after being unpacked by arm processor to described FPGA module, data are re-started into package according to self communication agreement by FPGA module and transmitted to the first optic module, the The electric signal received is converted to optical signal by one optic module, is transmitted to safety class equipment；
    Feedback procedure：Safety class equipment sends state data packets to the first optic module, by the first optic module by packet by Optical signal is transmitted to FPGA module after being converted to electric signal, and packet is unsealed and transmitted to ARM processing by FPGA module Device, package is re-started according to self communication agreement by arm processor and is transmitted to engineer station.
CN201710959177.8A 2017-10-16 2017-10-16 A kind of communication protocol conversion device and conversion method Active CN107493136B (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103309267A (en) * 2013-06-13 2013-09-18 中国矿业大学 Control system architecture of modular multilevel converter
CN103901293A (en) * 2013-12-05 2014-07-02 国家电网公司 Power quality monitoring device based on intelligent substation
KR101499097B1 (en) * 2014-12-15 2015-03-05 (주)에이원정보기술 Data Gateway System with Compatibility MDWS-600S Only Network
CN105024971A (en) * 2014-04-18 2015-11-04 中兴通讯股份有限公司 Communication protocol conversion method and communication protocol conversion device
CN105871895A (en) * 2016-05-17 2016-08-17 华南理工大学 IEC61850 communication protocol converter with encryption and decryption functions and implementing method
CN106059599A (en) * 2016-07-29 2016-10-26 四川赛狄信息技术有限公司 S-band receiving-transmitting integrated processor system
CN106843076A (en) * 2017-03-24 2017-06-13 福建英格尔电气设备有限公司 A kind of intelligent terminal for gathering and analyzing multiple sensors service data

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103309267A (en) * 2013-06-13 2013-09-18 中国矿业大学 Control system architecture of modular multilevel converter
CN103901293A (en) * 2013-12-05 2014-07-02 国家电网公司 Power quality monitoring device based on intelligent substation
CN105024971A (en) * 2014-04-18 2015-11-04 中兴通讯股份有限公司 Communication protocol conversion method and communication protocol conversion device
KR101499097B1 (en) * 2014-12-15 2015-03-05 (주)에이원정보기술 Data Gateway System with Compatibility MDWS-600S Only Network
CN105871895A (en) * 2016-05-17 2016-08-17 华南理工大学 IEC61850 communication protocol converter with encryption and decryption functions and implementing method
CN106059599A (en) * 2016-07-29 2016-10-26 四川赛狄信息技术有限公司 S-band receiving-transmitting integrated processor system
CN106843076A (en) * 2017-03-24 2017-06-13 福建英格尔电气设备有限公司 A kind of intelligent terminal for gathering and analyzing multiple sensors service data

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