CN104065701A - Nuclear power plant equipment monitoring system based on wireless sensor network - Google Patents
Nuclear power plant equipment monitoring system based on wireless sensor network Download PDFInfo
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Abstract
The invention discloses a nuclear power plant equipment monitoring system based on a wireless sensor network. A wireless monitoring node for gridding an equipment monitoring surface, obtaining tenth-order vibration mode inherent frequency and total displacement modal data of primarily selected monitoring points of important equipment to be monitored of the nuclear power plant, selecting optimized points by use of an intelligent optimization algorithm and collecting the monitoring information of nuclear power plant equipment monitoring terminals; a wireless relay node is used for gridding a spatial range in which the relay node is possibly deployed and primarily forming virtual redundant multi-route paths on the basis of the wireless monitoring node and further used for receiving the monitoring information data of the wireless monitoring node; a gateway and network access node is used for transmitting the monitoring information data to background monitoring software for processing; the background monitoring software is used for processing the monitoring information data and sending the processing result to a client and various monitoring terminals. The nuclear power plant equipment monitoring system based on the wireless sensor network is capable of meeting the special requirements such as high safety and high reliability in the application scenes of the nuclear power plant.
Description
Technical field
The invention belongs to nuclear power plant equipment monitoring technique field, relate to the nuclear power plant equipment supervisory control system based on wireless-aware network.
Background technology
At present world energy sources substantial appreciation of prices, greenhouse effect aggravation, energy supply and demand situation constantly worsen, and energy shortage and environmental problem become global energy problem main body, and greatly developing the abundant and clean nuclear power of resource reserve becomes inevitable choice.The main cable communicating technology that adopts of production process, Industry Control, monitoring of equipment and maintenance etc. in nuclear power station at present.But traditional wired mode exists many problems, such as environment, to wiring constraint, expensive cable, difficult in maintenance etc., has limited scope and mode that cable technology is applied.In addition, propose to wish to build up recently the target of century-old nuclear power station both at home and abroad, but cable life cycle is generally shorter than equipment and infrastructure life-span, cable is aging makes this realization of goal difficulty, and cable replacing is of a high price, even can not realize.Face these problems, the demand that wireless-aware network technology is applied to nuclear power station is born in natural birth.
Wireless-aware network can pass through mutually to cooperate between all kinds of integrated micro sensing nodes, transmission of information, thereby obtains various real time datas, and carries out multi-hop transmission by wireless mode.Aspect industry, military affairs, environment, health and safety monitoring, existing Preliminary Applications is explored.But nuclear power stress exist installation electromagnetical interference, less radio-frequency to disturb under environment, and easily under closed environment, there is scattering, reflection and diffraction, in nuclear power station, also have nuclear radiation and wireless signal can not affect the special constraints such as sensitive equipment simultaneously, make the robustness, real-time, survivability etc. of wireless-aware network can not meet the application requirements of nuclear power under stress environment.Therefore, the complete wireless-aware network supervisory control system meeting the demands need to all will be optimized treatment technology aspect four of hardware nodes, network design, communication process, daemon software, guarantee that could be best and improve the overall performance of wireless-aware network.
1), for the deployment of wireless aware monitoring node and wireless aware via node, occurred at present, towards the theory study under two dimensional surface, there is no the deployment scheme under three-dimensional actual environment, and in reliability, can not reaching the application requirements of nuclear power station.First feature of this supervisory control system invention is according to nuclear power site environment situation, efficiently monitoring node and via node to be disposed by Deployment Algorithm, thereby has formed many redundancies of multi-hop stable routing.
2) after having disposed node formation routing channel, second feature of this supervisory control system is to have adopted the heuristic fast dispatch algorithm of own exploitation to complete the realization of the communication resource (time slot+frequency) dispatching algorithm, has further strengthened the reliability of wireless supervisory control system.
3) aspect monitoring software, many monitoring software products of realizing based on Design of Wireless Sensor Network on domestic market, are there are, but the non-industrial circles such as the main Environment Oriented monitoring of these products, even if having the software of some industrial circles but be also difficult to meet the special requirement to reliability and security in nuclear power station application, and on software view, also there is extensibility and portable poor defect.Review international market, the monitoring of tools software platform of Azima DLI company of the U.S. has occupied one seat with its abundant function and higher reliability on monitoring software market, and also has many successful stories in the face of the higher application scenarios of the security requirements such as monitoring power station.But perfect although Azima DLI company has also carried out on extensibility and professional platform independence its product, its audient is confined to nature of business, the portability that its product shows while facing diversified demand still has much room for improvement.
Summary of the invention
Object of the present invention is providing the supervisory control system of the nuclear power plant equipment based on wireless-aware network, has solved existing wireless aware supervisory control system and can not meet the problem of nuclear power generating equipment high reliability demand.
The technical solution adopted in the present invention is made up of wireless monitor node, wireless relay nodes, gateway and network access point, background monitoring software;
Described wireless monitor node: gridding monitoring of equipment surface, obtain 10 first order mode natural frequencys and the total displacement modal data of the primary election monitoring point of nuclear power station visual plant to be monitored, adopt intelligent optimization algorithm to be optimized a little and choose, collect the monitor message of nuclear power plant equipment terminal;
Described wireless relay nodes: the spatial dimension that gridding via node may be disposed, in wireless monitor nodal basis, begin to take shape virtual redundancy multirouting path, then taking environment, easily place constraints as basis, form the redundancy routed path of optimizing, supplement remaining relay point deployed position and determined, be used for receiving the monitor message data of wireless monitor node;
Described gateway and network access point: network access point has adopted the procotol same with via node, can within definite time cycle, collect wireless relay nodes one and take turns monitor message data, and given gateway, gateway sends monitor message data to background monitoring software and processes;
Described background monitoring software: monitor message data are processed, result is sent to client and various monitor terminal.
Further, described Optimum Points is asked for and is met following condition: a) do not lose important modal information as far as possible; B) measuring point should be avoided being placed on and affect the first reconnaissance of nuclear power sensitive equipment position; C) ensure as far as possible between monitoring node to be communicated with and can to use directional antenna; D) measuring point is preferably positioned at safety, easy care, easy placement location.
Further, described multirouting path link conflict control, obtains and meets the reasonable distribution of link scheduling without the communication resource under conflict and the least commitment of network scheduling resource according to Welsh-Powell algorithm and heuritic approach.
Further, described heuritic approach is: the last complex chart forming according to all redundancy routes, be translated into conflict graph, and " summit " in conflict graph represents the link in former figure, " limit " in conflict graph represents all conflict relationships that comprise between link.Then the heuritic approach proposing according to us is carried out resource distribution, the heuristic scheduling of frequency hopping based on TDMA: time division is become to periodic frame, again frame is divided into little time slot, wireless-aware network node is by corresponding link scheduling strategy, get and distribute to its communication resource and carry out data transmission or reception, nuclear power stress environment under, in the process of link scheduling, need to ensure that link assignment arrives at least one different communication resource, divide timing communicating resource, different communication resource is distributed on the limit of facing that comprises same vertices in figure, between node, within the scope of double bounce, there is mutual disturbed condition simultaneously, also distribute different communication resource to avoid indirect conflict, the corresponding different communication resource number of link assignment of giving of link load uninterrupted, to solve mass flow discrepancy weighing apparatus problem, nuclear power stress environment under the increase of wireless-aware network scale and node density must make communication link quantity also increase sharply.
Further, described background monitoring software comprises that data processing module, early-warning judgment module, data present module, authority management module and carrying out safety backup module;
1) data processing module:
Data processing module is mainly responsible for the monitor data receiving to process targetedly, thereby for upper layer application provides directly available data content, this module is made up of 2 submodules: Data Analysis submodule and data sub module stored, analyzing sub-module is resolved the binary data frame receiving according to its form, direct available Frame after this resume module, content comprises: the numbering of monitoring node, the type of Monitoring Data, concrete monitoring numerical value and data acquisition time; Data sub module stored, using as the connector that connects stored data base, is called corresponding storing process according to the content of the monitor data after resolving;
2) early-warning judgment module: the Main Function of early-warning judgment module is to ensure the real-time of alarm prompting, first data after data processing module is resolved will arrive this module and judge whether triggering early warning before presenting, its complete function is provided by threshold value matched sub-block and alarm trigger submodule, threshold value matched sub-block is compared the data after resolving with corresponding threshold value of warning, if monitor data exceedes the threshold value of a certain grade, this submodule will be packed data content and threshold information to offer alarm trigger submodule so, the task of alarm trigger submodule is that the data encapsulation that reaches alarm implied condition is become to a trigger event, present module and finally complete the demonstration of alarm information by data,
3) data present module: data present the core that module is this software finishing man-machine interaction, by the management of display page with control as user request provides response, composition and the function of its submodule are as follows:
Real-time query submodule: present the middleware between interface and back-end data support platform, what offer upper strata due to data processing module is only the current latest data receiving, therefore can provide Data support for the diversified demand that data present in process by this submodule, strengthen the flexibility that data present;
Data transaction submodule: this submodule combines with data processing module, common is the adjustment that data to be presented complete structure, has wherein encapsulated broken line graph, column, virtual instrument, the tree-shaped multiple Organization of Data form that presents structure of being applicable to;
Upgrade and trigger submodule: what be responsible for that user side phase data terminal initiatively initiates provides function support alternately, the i.e. entrance of " user--> data " data flow, by this submodule, user can realize the change of monitor node threshold value, device name changes function;
Figure presents submodule: this submodule is responsible for the data of various multimedias and is presented work, simultaneously with alarm prompting submodule together finished surface to the prompting of the warning information of many sense organs, its inside exist multiple be convenient to call present assembly;
Alarm prompting submodule: the early warning trigger event of monitoring early-warning judgment module, and be responsible for the particular content encapsulating in event to resolve, be functional parameter by data translation, alarm information after this module is organized fast presents join with the form of instruction with figure in the assembly that presents encapsulating in submodule, completes early warning work;
4) authority management module: authority management module ensures the fail safe of data from the angle of prevention user error operation, its complete function is made up of authentication submodule and control of authority submodule;
Authentication submodule is connected as active user and user profile in database, in the time that user logins monitoring software, provides authority information by this module for it, for control of authority provides data basis;
Whole process is monitored the various operations that current login user is carried out by control of authority submodule, and this operation requested permissions and user self authority is done and mated, and only, in the time that user right is not less than operation requested permissions, software just gives this operation requests with response;
5) carrying out safety backup module: carrying out safety backup module will provide system-level security protection strategy for monitor data, have 2 submodules under this module: incremental backup submodule and backup management submodule;
The effect of incremental backup submodule is to be automatically regularly that the image data newly adding backs up by software systems, and integrates with existing data backup, carries out unified management;
The a large amount of backup files to continuous generation are carried out Organization And Management by backup management submodule, comprises according to the mode classification of memory time, Data classification and adjust storage organization, for keeper, the operation of Backup Data provided support simultaneously.
The invention has the beneficial effects as follows that this supervisory control system can meet for the specific demand such as high security, high reliability in nuclear power station application scenarios.
Brief description of the drawings
Fig. 1 is the nuclear power plant equipment supervisory control system structural representation that the present invention is based on wireless-aware network;
Fig. 2 is system construction drawing of the present invention and core technology corresponding diagram;
Fig. 3 is monitoring software module diagram of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
The present invention is based on the nuclear power plant equipment supervisory control system structure of wireless-aware network as shown in Figure 1, comprise that data processing module, early-warning judgment module, data present module, authority management module and carrying out safety backup module;
Wireless monitor node: gridding monitoring of equipment surface, obtains 10 first order mode natural frequencys and the total displacement modal data of the primary election monitoring point of nuclear power station visual plant to be monitored.Then adopting intelligent optimization algorithm to be optimized a little according to following condition chooses.Meet following condition: a) do not lose important modal information as far as possible; B) measuring point should be avoided being placed on and affect the first reconnaissance of nuclear power sensitive equipment position; C) ensure as far as possible between monitoring node to be communicated with and can to use directional antenna; D) measuring point is preferably positioned at safety, easy care, easy placement location, collects the monitor message of nuclear power plant equipment terminal.
First will ensure not lose important modal information, so Obtaining Accurate vibration information needs overriding concern, this is because it is the basis of the normal work of whole monitoring system as far as possible; Secondly, may there is potential threat to sensitive equipment in radio frequency signal, and the inefficacy of sensitive equipment may cause some region of nuclear power station produce warning or report to the police, measuring point should be avoided being placed on affects the first reconnaissance of nuclear power sensitive equipment position, so impact should less importantly be considered on nuclear power sensitive equipment; In nuclear power station, the deployment of perception point should be placed on easy care and safe the 3rd consideration of position as far as possible, and the connection of finally just should considering whether to communicate by letter between node ensures between monitoring node, to be communicated with and can to use directional antenna as far as possible.This is because not being communicated with between monitoring node can make up by increasing via node deployment workload.
Wireless relay nodes: the spatial dimension that gridding via node may be disposed, in wireless monitor nodal basis, begin to take shape virtual redundancy multirouting path, then taking environment, easily place constraints as basis, form the redundancy routed path of optimizing, supplement remaining relay point deployed position and determined, be used for receiving the monitor message data of wireless monitor node.
Described multirouting path link conflict control, obtains and meets link scheduling without the reasonable distribution of the communication resource under conflict and the least commitment of network scheduling resource according to the Welsh-Powell algorithm of improvement and heuritic approach.The last complex chart forming according to all redundancy routes, is translated into conflict graph, and " summit " in conflict graph represents the link in former figure, and " limit " in conflict graph represents all conflict relationships that comprise between link.Then the heuritic approach proposing according to us is carried out resource distribution, the heuristic scheduling of frequency hopping based on TDMA: time division is become to periodic frame, again frame is divided into little time slot, wireless-aware network node is by corresponding link scheduling strategy, get and distribute to its communication resource and carry out data transmission or reception, nuclear power stress environment under, in the process of link scheduling, need to ensure that link assignment arrives at least one different communication resource, divide timing communicating resource, different communication resource is distributed on the limit of facing that comprises same vertices in figure, between node, within the scope of double bounce, there is mutual disturbed condition simultaneously, also distribute different communication resource to avoid indirect conflict, the corresponding different communication resource number of link assignment of giving of link load uninterrupted, to solve mass flow discrepancy weighing apparatus problem, nuclear power stress environment under the increase of wireless-aware network scale and node density must make communication link quantity also increase sharply.Utilize the features such as the communication distance of wireless-aware network is short, distant link uses same communication resource to carry out parallel communications simultaneously, with this increase network utilization, throughput, reduce network delay.
First according to monitoring node and gateway location, following the fairness doctrine is that each monitoring node forms the non-intersect link of redundancy; Then on this basis according to barrier stop, link communication is of poor quality, deployed position is limited, can use the constraints such as directional antenna by genetic algorithm, path to be optimized again; Finally dispose all via nodes according to path optimizing and in conjunction with the communication capacity of via node under actual environment.Can successfully avoid so three-dimensional obstacle, make whole on-premise network form one and be communicated with entirety, meet actual deployment needs; Also can more reasonably try one's best through deployment recommendation point position, allow node in the time of actual deployment, not only consider path, also consider safety, easy placement, easy care, had the good deployed position of external power supply; In addition, can make has three nonintersecting paths to carry out transfer of data between every pair of initial point, greatly improve network robustness, can fine reply node or the fault brought of link, can also allow the flexibility of transfer of data and Route Selection greatly strengthen, three basic paths that produced have ensured the rarest three feasible paths of routing procedure simultaneously.
Gateway and network access point: network access point has adopted the procotol same with via node, can within definite time cycle, collect wireless relay nodes one and take turns perception information, and be given gateway (webmaster and gateway can same device also can multiplely install).
Background monitoring software: monitor message data are processed, result is sent to client and various monitor terminal.Software will adopt the hierarchical structure of " power station-workshop-system-equipment-node ".
Be illustrated in figure 2 system construction drawing and core technology corresponding diagram, software function of the present invention and method are as follows:
1) ideas on software design:
The core of monitoring software is data, and therefore, in software design procedure, the present invention selects to complete the integrally-built design of data-centered software with structurized software design approach.Basic thought is around monitor data, by the analysis to data stream type, data flow direction in software, daemon software system is designed to the structure being made up of module relatively independent, simple function.On stream, in order to ensure that software possesses higher extensibility, use for reference the thought of prototyping, first complete the software kernels of being responsible for conventional data processing, carry out step by step afterwards the realization of function according to structurized thought.
In addition, very strict for the software requirement that directly applies to nuclear island in nuclear power station, common general software development mode is not suitable for nuclear power station reliability requirement, but the applied occasion of native system is the monitoring to nuclear power generating equipment, do not relate to the operation of nuclear power inside self system, do not get involved the core of relation safety, so not only can adopt common C/S model, can also adopt B/S development scheme more easily.
2) software requirement analysis:
Due to the particularity of nuclear power station application scenarios, in to the demand of software, have directly, significantly embody, its total demand mainly comprises:
High reliability: be embodied in software and have and there is fast restoration capabilities to multiple abnormal fault-tolerant processing ability and when the unexpected abnormality.
High precision: the variation of nuclear power station service data is conventionally very responsive, trace changes also may cause serious operation problem, therefore needs sensing node and monitoring software can both catch in time the variation of service data, and accurate monitoring is provided.
Strong safety guarantee: monitor data directly affects the overall operation in power station, and therefore the fail safe of data is most important, monitoring software system should provide perfect security protection strategy to ensure data security.
Rapidly and efficiently: the best opportunity of controlling nuclear power station emergency case is often written in water, the service data that therefore requirement collects should arrive rapidly monitor terminal.
Easy and simple to handle: monitoring software requires to put into immediately in the control of production work, and the software of therefore realizing out should possess strong ease for use and good interactivity.
Maintainable: monitor and control of nuclear power station requires auxiliary products that long-term support can be provided conventionally, and therefore monitoring software should possess good maintainability.
3) Software Module Design:
As shown in Figure 3, the monitoring software of the present invention's design will be mainly by forming with lower module and submodule:
4) Analysis on Key Technologies of software:
1. realize sharing flexibly of monitor data.Collect monitor data under safe storage prerequisite, should meet monitor staff, manager's logarithm and it is investigated the real-time requirement of seeing and the demand of multi-point monitoring., must from traditional C/S (Client/Service) monitoring software system, spin off for this reason, break away from running software depending on unduly terminal system., consider from long-range angle meanwhile, should make this software possess certain cross-platform operation characteristic, to tackle the key issue such as product transplanting, functions expanding under monitoring diversification of demand trend.
2. provide in time, early warning accurately.Monitoring software should be given full play to the calculating potentiality of monitor terminal in passive demonstration image data, initiatively provides current system the problem hidden danger that maybe may exist of having found in service to user in comparatively intelligent mode.
3. the strengthening of mutual friendly.Function in monitoring software realizes with data interaction is undertaken by a large amount of graphical interfaces, and therefore friendly interface will provide great help for user grasps function with rational interactive mode.The possibility of having avoided causing because of interaction design defect user's operate miss, also can improve the loyalty of user to product simultaneously.
4. the raising of functional expansionary.Nuclear power station is applied the high request to reliability and stability, make software kit that long-term support should be provided and can tackle fast burst demand expand and changes in demand.Therefore software needs the moment to keep the attention to extensibility in design process, require software prototype have stable, comprehensive Core Feature and can with new assembly rapid fusion.
Software of the present invention can be divided into data analysis layer, data storage layer, man-machine interaction layer and safety management layer.Each hierarchical structure is by the concrete effect of mating reaction performance between functional module.
Each modular design of software:
1) data processing module:
Data processing module is mainly responsible for the monitor data receiving to process targetedly, thereby provides directly available data content for upper layer application.This module is made up of 2 submodules: Data Analysis submodule and data sub module stored.
Analyzing sub-module is resolved the binary data frame receiving according to its form, the direct available data frame content after this resume module should comprise: the numbering of monitoring node, the type of Monitoring Data (as temperature, vibration, radiation intensity etc.), concrete monitoring numerical value and data acquisition time.
Data sub module stored, using as the connector that connects stored data base, is called corresponding storing process according to the particular content of the monitor data after resolving.
2) early-warning judgment module:
The Main Function of early-warning judgment module is to ensure the real-time of alarm prompting, and first the data after data processing module is resolved will arrive this module and judge whether triggering early warning before presenting.Its complete function is provided by threshold value matched sub-block and alarm trigger submodule.
Threshold value matched sub-block is compared the data after resolving with corresponding threshold value of warning, if monitor data exceedes the threshold value of a certain grade, this submodule will be packed data content and threshold information to offer alarm trigger submodule so.
The task of alarm trigger submodule is that the data encapsulation that reaches alarm implied condition is become to a trigger event, is presented module and finally completed the demonstration of alarm information by data.
3) data present module:
Data present the core that module is this software finishing man-machine interaction, by providing response for user request to the management of display page with controlling.Composition and the function of its submodule are as follows:
Real-time query submodule: present the middleware between interface and back-end data support platform, what offer upper strata due to data processing module is only the current latest data receiving, therefore can provide Data support for the diversified demand that data present in process by this submodule, strengthen the flexibility that data present.
Data transaction submodule: this submodule combines with data processing module, common is the adjustment that data to be presented complete structure.Wherein encapsulate broken line graph, column, virtual instrument, the multiple Organization of Data form that presents structure such as tree-shaped of being applicable to.
Upgrade and trigger submodule: what be responsible for that user side phase data terminal initiatively initiates provides function support, the i.e. entrance of " user--> data " data flow alternately.By this submodule, user can realize the functions such as the change of monitor node threshold value, device name change.
Figure presents submodule: this submodule is responsible for the data of various multimedias and is presented work, for example drafting of chart, virtual instrument, tree-shaped institutional framework, simultaneously with alarm prompting submodule together finished surface to the prompting of the warning information of many sense organs.Its inside exist multiple be convenient to call present assembly.
Alarm prompting submodule: monitoring the early warning trigger event of early-warning judgment module, and be responsible for the particular content encapsulating in event to resolve, is functional parameter by data translation.Alarm information after this module is organized fast presents join with the form of " instruction " with figure in the assembly that presents encapsulating in submodule, completes early warning work.
4) authority management module:
Authority management module ensures the fail safe of data from the angle of prevention user error operation.Its complete function is made up of authentication submodule and control of authority submodule.
Authentication submodule is connected mainly as active user and user profile in database, in the time that user logins monitoring software, provides authority information by this module for it, for control of authority provides data basis.
Whole process is monitored the various operations that current login user is carried out by control of authority submodule, and this operation requested permissions and user self authority is done and mated, and only, in the time that user right is not less than operation requested permissions, software just gives this operation requests with response.
5) carrying out safety backup module:
Carrying out safety backup module will provide system-level security protection strategy for monitor data.Under this module, there are 2 submodules: incremental backup submodule and backup management submodule.
The effect of incremental backup submodule is to be automatically regularly that the image data newly adding backs up by software systems, and integrates with existing data backup, carries out unified management.
The a large amount of backup files to continuous generation are carried out Organization And Management by backup management submodule.Emphasis comprises according to the mode classification such as memory time, Data classification adjusts storage organization; For keeper, the operation of Backup Data is provided support simultaneously.
Nuclear power plant equipment operation and health status monitor service product are the bases that nuclear power station is set up safety, cost-effective operation architecture, are the important means that improves nuclear power station operation robustness, are also the preconditions of tackling rapidly nuclear power station operation emergency case.Its main benefit of the present invention shows four aspects: one, the low cost monitor network of being organized by wireless senser, can improve current nuclear power station and be difficult to carry out the artificial present situation of monitoring on the spot, along with the progress of wireless senser technique, can provide the monitor service of customizable for the different degree of protection of different nuclear power station and multiple demand, thereby there is huge society and economic benefit; They are two years old, the long-term accumulation of monitor data can provide for the design of the correction of nuclear plant safety index and emergency preplan the reference of True Data, for the new nuclear power generating equipment of research or new equipment control, means of defence, for improving nuclear power station general safety protection level important role; They are three years old, by Real-time Collection characteristic and the pre-alerting ability of monitoring and early warning product, can make Surveillance center predict the development trend of each equipment operating data, thereby arrange maintenance work in advance, to reducing to greatest extent the operating risk of nuclear power generating equipment, accomplish to prevent trouble before it happens; They are four years old, along with sensor-based network technology and going deep into that the major domain such as health care, urban transportation combines, monitoring product not only has facilitation to the development of such monitoring product in the successful Application in nuclear power station field in real time, and using one of important case combining with current demand as sensing network, for correlation technique is offered reference in the application of more areas.
The present invention is in the process of design and development, energetically by merging new technology, improving the mode of prior art, improve constantly the availability of dispositions method and dispatching algorithm, and the ease for use of software product, extensibility and the key property such as portable, expect that nuclear power supervisory control system overall plan, dispositions method, scheduling strategy and the software product realized out can adapt to the variation of application demand fast.In sum, as the complete overall various functions of having realized reliable wireless aware net nuclear power necessary for monitoring of deployment techniques, dispatching method and monitoring software of main results of the present invention
In sum, the present invention is the specific demand such as high security, high reliability in nuclear power station application scenarios, designs and Implements out and meets the monitoring node of nuclear power station instructions for use and via node deployment scheme, heuristic fast dispatch algorithm and equipment operation and the real-time monitoring software of health status for the communication resource (time slot+frequency).
Claims (5)
1. the nuclear power plant equipment supervisory control system based on wireless-aware network, is characterized in that: be made up of wireless monitor node, wireless relay nodes, gateway and network access point, background monitoring software;
Described wireless monitor node: gridding monitoring of equipment surface, obtain 10 first order mode natural frequencys and the total displacement modal data of the primary election monitoring point of nuclear power station visual plant to be monitored, adopt intelligent optimization algorithm to be optimized a little and choose, collect the monitor message of nuclear power plant equipment terminal;
Described wireless relay nodes: the spatial dimension that gridding via node may be disposed, in wireless monitor nodal basis, begin to take shape virtual redundancy multirouting path, then taking environment, easily place constraints as basis, form the redundancy routed path of optimizing, supplement remaining relay point deployed position and determined, be used for receiving the monitor message data of wireless monitor node;
Described gateway and network access point: network access point has adopted the procotol same with via node, can within definite time cycle, collect wireless relay nodes one and take turns monitor message data, and given gateway, gateway sends monitor message data to background monitoring software and processes;
Described background monitoring software: monitor message data are processed, result is sent to client and various monitor terminal.
2. according to the nuclear power plant equipment supervisory control system based on wireless-aware network described in claim 1, it is characterized in that: described Optimum Points is asked for and met following condition: a) do not lose important modal information as far as possible; B) measuring point should be avoided being placed on and affect the first reconnaissance of nuclear power sensitive equipment position; C) ensure as far as possible between monitoring node to be communicated with and can to use directional antenna; D) measuring point is preferably positioned at safety, easy care, easy placement location.
3. according to the nuclear power plant equipment supervisory control system based on wireless-aware network described in claim 1, it is characterized in that: described multirouting path link conflict control, obtain and meet the reasonable distribution of link scheduling without the communication resource under conflict and the least commitment of network scheduling resource according to Welsh-Powell algorithm and heuritic approach.
4. according to the nuclear power plant equipment supervisory control system based on wireless-aware network described in claim 3, it is characterized in that: described heuritic approach is: the last complex chart forming according to all redundancy routes, be translated into conflict graph, " summit " in conflict graph represents the link in former figure, " limit " in conflict graph represents all conflict relationships that comprise between link, then the heuritic approach proposing according to us is carried out resource distribution, the heuristic scheduling of frequency hopping based on TDMA: time division is become to periodic frame, again frame is divided into little time slot, wireless-aware network node is by corresponding link scheduling strategy, get and distribute to its communication resource and carry out data transmission or reception, nuclear power stress environment under, in the process of link scheduling, need to ensure that link assignment arrives at least one different communication resource, divide timing communicating resource, different communication resource is distributed on the limit of facing that comprises same vertices in figure, between node, within the scope of double bounce, there is mutual disturbed condition simultaneously, also distribute different communication resource to avoid indirect conflict, the corresponding different communication resource number of link assignment of giving of link load uninterrupted, to solve mass flow discrepancy weighing apparatus problem, nuclear power stress environment under the increase of wireless-aware network scale and node density must make communication link quantity also increase sharply.
5. according to the nuclear power plant equipment supervisory control system based on wireless-aware network described in claim 1, it is characterized in that: described background monitoring software comprises that data processing module, early-warning judgment module, data present module, authority management module and carrying out safety backup module;
1) data processing module:
Data processing module is mainly responsible for the monitor data receiving to process targetedly, thereby for upper layer application provides directly available data content, this module is made up of 2 submodules: Data Analysis submodule and data sub module stored, analyzing sub-module is resolved the binary data frame receiving according to its form, direct available Frame after this resume module, content comprises: the numbering of monitoring node, the type of Monitoring Data, concrete monitoring numerical value and data acquisition time; Data sub module stored, using as the connector that connects stored data base, is called corresponding storing process according to the content of the monitor data after resolving;
2) early-warning judgment module: the Main Function of early-warning judgment module is to ensure the real-time of alarm prompting, first data after data processing module is resolved will arrive this module and judge whether triggering early warning before presenting, its complete function is provided by threshold value matched sub-block and alarm trigger submodule, threshold value matched sub-block is compared the data after resolving with corresponding threshold value of warning, if monitor data exceedes the threshold value of a certain grade, this submodule will be packed data content and threshold information to offer alarm trigger submodule so, the task of alarm trigger submodule is that the data encapsulation that reaches alarm implied condition is become to a trigger event, present module and finally complete the demonstration of alarm information by data,
3) data present module: data present the core that module is this software finishing man-machine interaction, by the management of display page with control as user request provides response, composition and the function of its submodule are as follows:
Real-time query submodule: present the middleware between interface and back-end data support platform, what offer upper strata due to data processing module is only the current latest data receiving, therefore can provide Data support for the diversified demand that data present in process by this submodule, strengthen the flexibility that data present;
Data transaction submodule: this submodule combines with data processing module, common is the adjustment that data to be presented complete structure, has wherein encapsulated broken line graph, column, virtual instrument, the tree-shaped multiple Organization of Data form that presents structure of being applicable to;
Upgrade and trigger submodule: what be responsible for that user side phase data terminal initiatively initiates provides function support alternately, the i.e. entrance of " user--> data " data flow, by this submodule, user can realize the change of monitor node threshold value, device name changes function;
Figure presents submodule: this submodule is responsible for the data of various multimedias and is presented work, simultaneously with alarm prompting submodule together finished surface to the prompting of the warning information of many sense organs, its inside exist multiple be convenient to call present assembly;
Alarm prompting submodule: the early warning trigger event of monitoring early-warning judgment module, and be responsible for the particular content encapsulating in event to resolve, be functional parameter by data translation, alarm information after this module is organized fast presents join with the form of instruction with figure in the assembly that presents encapsulating in submodule, completes early warning work;
4) authority management module: authority management module ensures the fail safe of data from the angle of prevention user error operation, its complete function is made up of authentication submodule and control of authority submodule;
Authentication submodule is connected as active user and user profile in database, in the time that user logins monitoring software, provides authority information by this module for it, for control of authority provides data basis;
Whole process is monitored the various operations that current login user is carried out by control of authority submodule, and this operation requested permissions and user self authority is done and mated, and only, in the time that user right is not less than operation requested permissions, software just gives this operation requests with response;
5) carrying out safety backup module: carrying out safety backup module will provide system-level security protection strategy for monitor data, have 2 submodules under this module: incremental backup submodule and backup management submodule;
The effect of incremental backup submodule is to be automatically regularly that the image data newly adding backs up by software systems, and integrates with existing data backup, carries out unified management;
The a large amount of backup files to continuous generation are carried out Organization And Management by backup management submodule, comprises according to the mode classification of memory time, Data classification and adjust storage organization, for keeper, the operation of Backup Data provided support simultaneously.
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| CN110673550A (en) * | 2019-09-10 | 2020-01-10 | 苏州热工研究院有限公司 | Enocean protocol-based low-energy-consumption data acquisition equipment terminal, system and debugging method |
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