CN102981431B - Nuclear power station diversity protection system hardware framework based on FPGA - Google Patents
Nuclear power station diversity protection system hardware framework based on FPGA Download PDFInfo
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- CN102981431B CN102981431B CN201210457586.5A CN201210457586A CN102981431B CN 102981431 B CN102981431 B CN 102981431B CN 201210457586 A CN201210457586 A CN 201210457586A CN 102981431 B CN102981431 B CN 102981431B
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Abstract
The present invention is a kind of nuclear power station diversity protection system hardware framework based on FPGA, and technical problems to be solved are potential risks caused by avoiding software common mode failure, belong to field of industrial automatic control.It is characterized in that：Fastener includes analog signal input card, logical process card, digital quantity input/output cards and communication card, and fastener uses FPGA as logical process component；Analog signal input card, digital quantity input/output cards are carried out data transmission by signal transmssion line and logical process card respectively；Analog signal input card, digital quantity input/output cards, logical process card, host computer, display device are carried out data transmission by signal transmssion line and communication card respectively.The present invention overcomes the potential risk that software common mode failure is brought, and improves the reliability of nuclear power plant instrument control system.Simultaneously, moreover it is possible to which to fastener self diagnosis, monitoring, parameter setting and online lane testing, flexible fastener configure the scalability and integrality for ensureing whole hardware platform in real time.
Description
Technical field
The invention belongs to industry monitoring and automation field, is related to a kind of for the hard of nuclear power station diversity protection system
Part platform architecture.
Background technology
It is multi-level, more often through setting especially in the protection system of nuclear power station in the I＆C system of nuclear power station
The equipment of passage, more redundancies ensures the reliability of whole protection system, in order to overcome the common mode in protection system multichannel
The risk that failure is brought, nuclear power station are also provided with Protection of Diversity system, and it is using equipment, the principle with protecting system Biodiversity
The standby of nuclear power station defencive function is realized with framework.The nuclear power station diversity protection system of early stage uses analogue technique, with
The equipment digitalized requirement of nuclear power plant instrument control, also occurs the digitlization Protection of Diversity system of the microprocessor based on software later
System, carrys out monitoring field parameter by it, procedure parameter is handled and controlled by program prepared in advance.But software
In the presence of many potential failures, and these failures are difficult all to be found and solved.So microprocessor based on software
Common mode failure easily occurs, so as to which the redundance unit and diversity backup that cause to be originally used for improve reliability and set are in instrument control system
All failed in system.
The content of the invention
For the above situation, the technical problem to be solved in the present invention is to provide a kind of nuclear power station diversity based on FPGA
System hardware framework is protected, using the FPGA of pure hardware circuit（Field-Programmable Gate Array）Chip conduct
Core control element, the risk that software common mode failure is brought is effectively reduced, while also meets that nuclear power plant instrument control is system digitalized
It is required that.
To reach above-mentioned purpose, the technical solution adopted by the present invention is：Nuclear power station diversity protection system based on FPGA
Hardware structure, including fastener, host computer and display device, it is characterised in that：
It is defeated that the fastener includes at least one piece of analog signal input card, at least one piece of logical process card, at least one piece of digital quantity
Enter card, at least one piece of digital quantity output card and at least one piece of communication card, every piece of fastener is equipped with communication interface modules and carries out data
Communication；
Every piece of fastener uses FPGA to be held as logical process component, whole logic control circuit not comprising any software
Row module；
Analog signal input card, digital quantity input card, digital output card are respectively by an at least signal transmssion line with patrolling
Processing card is collected to carry out data transmission；
Analog signal input card, digital quantity input card, digital output card, logical process card, the host computer, the display
Equipment is carried out data transmission by an at least signal transmssion line with communication card respectively.
Every piece of fastener includes fastener self diagnosis module.
Communication between each fastener carries out Point-to-Point Data signal transmission using RS485 serial communication protocols.
The host computer includes an at least industrial computer computer.
The display device includes at least one digital display device or intelligent display meter, its by Shielded Twisted Pair or
Optical fiber enters row data communication with communication card and shown.
The logical process card built-in channel latching logic module, can carry out online lane testing, and it can receive digital quantity
Testing and control of the input card to passage；The also acceptable host computer of the logical process card carries out parameter setting and monitoring to it, joins
Number include setting valve, hardware delay time, filtering time, passage enable or locking, checking parameter.
The host computer carries out communication interaction with communication card by Ethernet and is connected, and realizes the prison to whole hardware platform
Control.
The positive effect of the present invention is：Used the hardware structure platform based on FPGA, use different from the past based on
The system of the microprocessor of software, the potential risk that can effectively overcome software common mode failure to bring, so as to effectively improve core
The reliability of power station I＆C system.System hardware platform based on FPGA structures also have fast response time, sampling precision high and
The advantages that strong antijamming capability.Meanwhile system architecture of the invention can also to fastener self diagnosis, to fastener carry out in real time monitoring,
Parameter setting and online lane testing, the scalability that ensures whole hardware platform and complete can be configured by flexible fastener
Property.
Brief description of the drawings
Below in conjunction with the accompanying drawings and the present invention is further described specific embodiment.
Fig. 1 is the system architecture schematic diagram of the present invention；
Fig. 2 is the modular structure schematic diagram of the logical process card of the present invention.
Embodiment
Nuclear power station diversity protection system hardware framework based on FPGA, including fastener, host computer and display device, it is special
Sign is：
It is defeated that the fastener includes at least one piece of analog signal input card, at least one piece of logical process card, at least one piece of digital quantity
Enter card, at least one piece of digital quantity output card and at least one piece of communication card, every piece of fastener is equipped with communication interface modules and carries out data
Communication.
As shown in figure 1, the nuclear power station diversity protection system hardware architecture platform of the present invention based on FPGA includes
Fastener, host computer 106 and display device 107, wherein fastener include at least one piece of analog signal input card 101, at least a block number word
Input card 102, at least one piece of logical process card 103, at least at least one piece of digital quantity output card 104, one piece of communication card 105 are measured,
Every piece of fastener is equipped with communication interface modules and enters row data communication；Every piece of fastener uses FPGA as logical process component,
Whole logic control circuit does not include any software execution module；Analog signal input card 101, digital quantity input card 102, digital quantity
Output card 104 is carried out data transmission by an at least signal transmssion line with logical process card 103 respectively；Analog signal input card
101st, digital quantity input card 102, digital output card 104, logical process card 103, host computer 106, display device 107 lead to respectively
An at least signal transmssion line is crossed with communication card 105 to carry out data transmission.
Every piece of fastener includes fastener self diagnosis module.
Communication between each fastener carries out Point-to-Point Data signal transmission using RS485 serial communication protocols.
The host computer 106 includes an at least industrial computer computer.
The display device 107 includes at least one digital display device or intelligent display meter, and it passes through Shielded Twisted Pair
Or optical fiber enters row data communication with communication card 105 and shown.
The built-in channel latching logic module of logical process card 103, can carry out online lane testing, it can receive numeral
Measure testing and control of the input card to passage；The also acceptable host computer 106 of the logical process card carries out parameter setting and prison to it
Control, parameter include that setting valve, hardware delay time, filtering time, passage be enabled or locking, checking parameter.
The host computer 106 carries out communication interaction with communication card 105 by Ethernet and is connected, and realizes to whole hardware platform
Monitoring.
Above all of fastener can be inserted into a cabinet, and such cabinet is typically 19 inches of wide, high 6U marks
Quasi- cabinet, the one piece of connection backboard completion connected through mounted in cabinet inside between fastener and fastener, connects and is equipped with backboard
AN connector is convenient to be attached with every piece of fastener.
As shown in figure 1, analog signal input card 101 can receive the spot sensors such as electric current, voltage, thermal resistance and thermocouple
Signal, and and these analog signalses are filtered, AD conversion and isolation and amplifier；Digital quantity input card 102 can receive out
The signals such as off position, valve location, state and alarm；The output that digital output card 104 can provide include warning output,
Valve driving output, relay driving output, motor driving output etc., its provide output can control nuclear power station valve site,
The control unit of motor or pump.The input or output of the commonly provided 8,16 or 32 paths of these I/O class fasteners.
As shown in figure 1, logical process card 103 receives the data signal sent after analog signal input card 101 has been handled, these
Data signal participates in logical operation, and logic operation result can deliver to digital output card 104 again by logical process card 103 and participate in most
Whole output driving.Meanwhile logical process card 103 can also receive the on-off model that digital quantity input card 102 is sent, these are opened
Pass amount signal is capable of the state of control logic processing 103 respective channels of card, realizes the on-line testing function to passage.In addition, patrol
Processing card 103 is collected also to be communicatively coupled with communication card 105.
As shown in figure 1, communication card 105 and remaining all fastener all carry out digital communication connection, it also provides network interface
Communication interaction is carried out with serial communication interface and host computer 106 and display device 107, can so realize the prison to all fasteners
Control.Meanwhile parameter setting can also be carried out to logical process card 103 by host computer 106, parameter setting includes setting valve, hardware
Delay time, passage enables or locking, checking parameter.
Data between fastener and fastener, which communicate, to be transmitted by the digital communications data bus between fastener, this
Communication construction employs the serial communication protocol of difference 485 and carries out Point-to-Point Data Transmission, and 485 communications provide a kind of two-wire difference
Transmission, half-duplex, multiple spot serial communication interface, and its CRC function（CRC）It all ensure that the anti-dry of communication
The integrity degree of immunity and data.Communication bus between fastener and fastener can also improve the redundancy of communication bus using more
Spend to ensure the reliability of communication.
All fasteners, as its kernel control chip, are protected all using fpga chip with nuclear power station diversity of the present invention
Exemplified by logical process card 103 in protecting system hardware structure, as shown in Fig. 2 logical process card mainly include communication module 201,
Core logic processing module 202, setting valve modified module 203, LED lamp control module 205, self diagnosis module 206 and with
FLASH memory 204.
As shown in Fig. 2 communication module 201 passes through the communications reception interface 201a in the module and communication transmission interface 201c
The data receiver and transmission that RS485 communicates are realized with other fasteners, communication control module 201b is used for the principal and subordinate for confirming the fastener
Relation, according to scheduled timing other fasteners are sent with request realization and is communicated with the RS485 data between other fasteners.
As shown in Fig. 2 core logic processing module 202 passes through other moulds on input/output interface 202a and fpga chip
Block is transmitted, and the Logic control module 202b in the module realizes the logic function control of whole Protection of Diversity system,
Such as passage definite value compares, channel hardware is delayed, channel logic computing function, meanwhile, the channel control module in the module
202c realizes locking, unblock and the lane testing function to passage, it is ensured that not false triggering when testing passage
Output drive signal.
As shown in Fig. 2 self diagnosis module 206 includes fault diagnosis module 206a, failure safe processing module 206b and event
Hinder display module 206c.Fault diagnosis module 206a can be to power-fail, I/O channel failure, logical device failure, card
Part communication failure is monitored.Once there is above-mentioned failure in fastener, and failure safe processing module 206b can be directed to the failure of diagnosis
Corresponding treatment measures are pre-set, corresponding I/O channel is in the failsafe modes such as state holding, stopping pair
Answer the data between fastener to communicate, and provided by malfunction coefficient module 206c and LED lamp control module 205 on fastener panel
LED indicates corresponding failure.
As shown in Fig. 2 logical process, which is arranged with FLASH memory 204, is used for storage system parameter, when system electrification or again
During startup, these parameters being saved, which will be read, participates in system operation initialization in fpga chip.These systematic parameter bags
Include：Setting valve, delay time, passage be enabled and locking, checking parameter etc..When needing to change the parameters such as setting valve, setting valve
The meeting locking related channel program function of modified module 203, amended parameters distribution is fallen data original in FLASH memory 204
Afterwards, then recover passage operation function, prevent that systematic parameter from being changed by mistake.
By that analogy, other fasteners（Analog signal input card, digital quantity input/output fastener, communication card）, all it is with FPGA
Chip is as kernel control chip, basic communication submodule, core processing submodule built in every piece of fastener, to complete the fastener
Function.These fasteners can use common on the market I/O classes fastener or communication card, can also be with reference to logical process card 103
Detailed inner framework carry out unitized overall development.
Every piece of fastener has the corresponding fastener slot position of unique numbering, and fastener groove position is inserted caused by preventing human error
It is wrong.In addition, cabinet can ensure the integrality of whole hardware platform according to insertion up to 10 pieces of various fasteners are actually needed
And scalability.
In summary, the nuclear power station diversity protection system hardware framework of the present invention based on FPGA is by pure hardware electricity
Completion is built on road, overcomes the potential risk that software common mode failure is brought, and improves the reliability of whole system platform.In addition,
Self-diagnostic function that hardware platform carries, failsafe mode setting, redundancy setting, the monitoring of online lane testing, online fastener
The Scalable Performance of system is also assures that while the integrity degree of system platform is improved etc. function.
Claims (7)
1. the nuclear power station diversity protection system hardware framework based on FPGA, including fastener, host computer and display device, its feature
It is：
The fastener include at least one piece of analog signal input card, at least one piece of logical process card, at least one piece of digital quantity input card,
At least one piece of digital quantity output card and at least one piece of communication card, every piece of fastener are equipped with communication interface modules and enter row data communication；
Every piece of fastener uses FPGA as logical process component；
Analog signal input card, digital quantity input card, digital output card respectively by an at least signal transmssion line and logic at
Reason card carries out data transmission；
The on-off model that digital quantity input card is sent is received in logical process clamping, and these on-off models being capable of control logic processing
The state of card respective channel, realize the on-line testing function to passage；
Analog signal input card, digital quantity input card, digital output card, logical process card, the host computer, the display device
Carried out data transmission respectively by an at least signal transmssion line with communication card.
2. the nuclear power station diversity protection system hardware framework according to claim 1 based on FPGA, it is characterised in that：Institute
Stating every piece of fastener includes fastener self diagnosis module.
3. the nuclear power station diversity protection system hardware framework according to claim 1 based on FPGA, it is characterised in that：Institute
The communication stated between fastener carries out Point-to-Point Data signal transmission using RS485 serial communication protocols.
4. the nuclear power station diversity protection system hardware framework according to claim 1 based on FPGA, it is characterised in that：Institute
Stating host computer includes an at least industrial computer computer.
5. the nuclear power station diversity protection system hardware framework according to claim 1 based on FPGA, it is characterised in that：Institute
Stating display device includes at least one digital display device or intelligent display meter, and it passes through Shielded Twisted Pair or optical fiber and communication
Row data communication is sticked into show.
6. the nuclear power station diversity protection system hardware framework according to claim 1 based on FPGA, it is characterised in that：Institute
Logical process card built-in channel latching logic module is stated, online lane testing can be carried out, it can receive digital quantity input card to logical
The testing and control in road；The also acceptable host computer of the logical process card carries out parameter setting and monitoring to it, and parameter includes adjusting
Value, hardware delay time, filtering time, passage enable or locking, checking parameter.
7. the nuclear power station diversity protection system hardware framework according to claim 1 based on FPGA, it is characterised in that：Institute
State host computer to be connected with communication card progress communication interaction by Ethernet, realize the monitoring to whole hardware platform.
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| CN103389670A (en) * | 2013-07-31 | 2013-11-13 | 成都电业局双流供电局 | Data acquisition and power monitoring device for transformer station |
| IN2013CH05962A (en) * | 2013-12-20 | 2015-06-26 | Infotech Entpr Ltd | |
| CN104965801A (en) * | 2015-07-29 | 2015-10-07 | 国核自仪系统工程有限公司 | Dual-protection device for content of non-volatile memories and dual-protection method thereof |
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| CN106527295B (en) * | 2016-12-28 | 2018-11-02 | 中核控制系统工程有限公司 | The diversity framework of safety level DCS double FPGAs |
| CN106649160A (en) * | 2016-12-29 | 2017-05-10 | 国核自仪系统工程有限公司 | ETS voting card based on FPGA architecture |
| CN109254553A (en) * | 2018-11-19 | 2019-01-22 | 国核自仪系统工程有限公司 | Control systems of nuclear power plant |
| CN112489389B (en) * | 2020-12-07 | 2022-11-11 | 中广核研究院有限公司 | Nuclear power station alarm system and alarm method |
| CN113552819B (en) * | 2021-06-09 | 2022-12-13 | 清华大学 | Logic protection device and method based on multiple bottom-layer board cards |
| CN113791606A (en) * | 2021-09-17 | 2021-12-14 | 上海斯可络压缩机有限公司 | Self-diagnosis system for screw compressor controller |
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Address after: 200241 No. 428 East Jiangchuan Road, Shanghai, Minhang District Patentee after: STATE NUCLEAR POWER AUTOMATION SYSTEM ENGINEERING Co.,Ltd. Address before: 200241. A2036, building B, building 555, Dongchuan Road, Minhang District, Shanghai Patentee before: STATE NUCLEAR POWER AUTOMATION SYSTEM ENGINEERING Co.,Ltd. |
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