CN202677396U - Heterogeneous fault-tolerant circuit design system based on space searching technology - Google Patents
Heterogeneous fault-tolerant circuit design system based on space searching technology Download PDFInfo
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- CN202677396U CN202677396U CN 201220358795 CN201220358795U CN202677396U CN 202677396 U CN202677396 U CN 202677396U CN 201220358795 CN201220358795 CN 201220358795 CN 201220358795 U CN201220358795 U CN 201220358795U CN 202677396 U CN202677396 U CN 202677396U
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Abstract
The utility model discloses a heterogeneous fault-tolerant circuit design system based on the space searching technology, which comprises a fault detecting part, a space searching part, a heterogeneous fault-tolerant circuit data base part and a reconfigurable repair circuit part. The heterogeneous fault-tolerant circuit design system based on the space searching technology relates to the reliability design field of FPGA (Field Programmable Gate Array) and mainly solves the self-repair of online faults of an integrated circuit. After detecting a faulty unit, the system sends a fault positioning signal to a controller, and the space searching part searches an heterogeneous equivalent circuit in an established heterogeneous equivalent circuit data base, bypasses an equivalent circuit of the faulty unit, sends the heterogeneous equivalent circuit to the reconfigurable repair circuit part and maps the searched heterogeneous equivalent circuit to a functional circuit to complete the self-repair process of the faulty circuit. The heterogeneous fault-tolerant circuit design system can realize the dynamic fault-tolerant process and is applicable to the fault tolerance of various spacecrafts and fault-tolerant systems of integrated circuits using FPGA in the national defense industry and the like.
Description
Technical field
The utility model relates to integrated circuit fault tolerant systems design field, is specifically related to a kind of isomery fault tolerable circuit design system based on FPGA.
Technical background
Along with large scale integrated circuit being widely used in every field, FPGA (field programmable gate array) device is applied in the middle of space flight, the military industry field more and more, becomes the critical component that signal is processed and controlled.But owing to being subject to space High energy particles Radiation and the slightly impact of environment of other evils, the integrity problem of spaceborne electron device has highlighted gradually and has needed to be resolved hurrily and optimize, and how to address this problem has become the direction that space, various countries Research team is competitively paid close attention to and studied.
At present, very active for the research of integrated circuit tolerant system both at home and abroad.There are hardware redundancy fault-tolerant technique and error detection and correction code fault-tolerant technique in typical fault-tolerant design system, the former uses the triplication redundancy technology, protected circuit is carried out hardware redundancy reinforces, to reach the purpose of masking errors, but its shortcoming is, use redundant the reinforcing greatly to increase the occupancy of system resource, even can cause very large Resources on Chip waste; The latter uses Hamming code or the R-S code carries out the detection of memory data, and its shortcoming is that usable range is limited, only can be used for the protection to memory data, and the error correction figure place is also limited, therefore can not carry out large-scale fault-tolerant design and use.
Development along with Reconfiguration Technologies; fault restoration technology based on the local dynamic reconfigurable technology has appearred again; the functional module of protected circuit is carried out the local reconfigurable design; after protected circuit breaks down; only need to just can finish by loading local bit stream file the reparation of faulty component; although the local dynamic reconfigurable technology has all had very large improvement than hardware redundancy and error detection and correction code technology on the reliability of resources occupation rate and reparation; but this technology can only be carried out the fault restoration of coarseness; be after the elementary cell of protected circuit breaks down; all to do whole protected circuit module and reconfigure; so also there is redundancy on the very large sheet, forms the larger wasting of resources.Embryo's electronics fault-tolerant technique is again a kind of new dynamic self-repairing fault tolerance method; it is by being divided into several working cardial cells and idle cell with a protected circuit; when having certain working cardial cell to break down, with idle cell on every side it is replaced; make circuit can continue normal operation; this fault-tolerant technique has the function from detection, selfreparing; and belong to fine-grained fault tolerant mechanism; but its implementation procedure is complicated; the cycle of selfreparing is longer, and this has affected its application in industry and Space Science and Technology field to a certain extent.
Therefore designing a cover has higher reliability and again the not high tolerant system of resources occupation rate on the system on chip is had stronger practicality, and adopt the mode that the isomery equivalent electrical circuit is changed into corresponding matrix model based on the isomery fault tolerable circuit design system of space search technology, after detecting fault, only need search the isomery equivalent electrical circuit that does not contain trouble unit gets final product, then functional circuit is reshuffled again, so namely saved a large amount of Resources on Chips, the dynamic selfreparing of carrying out faulty circuit that again can be real-time.
The utility model content
In order to solve the integrity problem of large scale integrated circuit and FPGA design system, and appear at the situations such as too high, the fault-tolerant reliability of Resources on Chip occupancy in the general tolerant system is on the low side, the utility model provides a kind of isomery fault tolerable circuit design system, this system sets up an automatic fault selftesting and fault restoration model by space search technology and the mode of setting up isomery equivalent electrical circuit database, re-use the dynamic restructuring technology and carry out the On-line Self-repairing of trouble unit, to reach the purpose of System Fault Tolerance.
The technical solution of the utility model is: a kind of isomery fault tolerable circuit design system based on the space search technology, it comprises fault detection part, space search part, isomery circuit database part and restructural reparation circuit part.Described fault detection part comprises fault detection module, localization of fault module and failure message storer, fault detection part directly links to each other with functional circuit, whether be used for the real-time detection function circuit breaks down, the signal input part of fault detection module is connected in functional circuit, the signal output part of fault detection module connects the localization of fault module, the signal output part of localization of fault module connects the failure message storer, and the search of simultaneous faults locating module starts output signal and connects isomery equivalent electrical circuit search module, and the data-out port of failure message storer connects isomery equivalent electrical circuit search module; Described space search partly comprises isomery equivalent electrical circuit search module and database data read-out controller, the search signal output port of isomery equivalent electrical circuit search module connects isomery equivalent electrical circuit database, and the Search Results output signal port connection data database data read-out controller of while isomery equivalent electrical circuit search module, the Data Control output signal port of database data read-out controller connects isomery equivalent electrical circuit database; Described isomery circuit database partly comprises isomery equivalent electrical circuit database and search results store, the data-out port of isomery equivalent electrical circuit database connects the data-in port of search results store, and the signal output port of search results store connects isomery equivalent electrical circuit mapping block; Described restructural is repaired circuit part and is comprised Configuration Control Unit and isomery equivalent electrical circuit mapping block, the search result data enabling signal port of reading of Configuration Control Unit connects search results store, and the enabling signal port of reshuffling of Configuration Control Unit connects isomery equivalent electrical circuit mapping block simultaneously.
Fault detection module comprises control processor, latch, controll plant and data comparator, fault detection module mainly is responsible for protected circuit is carried out real-time fault detect, there is fault to occur if detect protected circuit, then sends fault-signal to the localization of fault module;
The localization of fault module comprises controller, fault search module, trouble unit identification module and fault coordinate information buffer, and the localization of fault module mainly is responsible for just carrying out the accurate location of trouble unit after receiving the fault-signal that fault detection module sends;
The failure message storer mainly is responsible for the precise position information of the trouble unit of storage after localization of fault;
Isomery equivalent electrical circuit search module is that software is realized part, its major function is for after receiving fault detect and localization of fault information, isomery equivalent electrical circuit search module just carries out step by step traversal search to the isomery equivalent electrical circuit matrix in the isomery equivalent electrical circuit database, searches the equivalent electrical circuit matrix that only need get around trouble unit;
The database data read-out controller mainly be responsible for to receive the isomery fault tolerable circuit matrix of isomery equivalent electrical circuit search module transmission and searches for complete signal, and controls simultaneously the isomery equivalent electrical circuit matrix that isomery equivalent electrical circuit database will search and send search results store to;
Isomery equivalent electrical circuit database belongs to the Software for Design part, its major function is the minimum unit composition structure with protected circuit, carry out the design of a plurality of isomery equivalent electrical circuit, this isomery equivalent electrical circuit database has comprised all can get around the isomery equivalent electrical circuit of each minimum unit fault, each isomery equivalent electrical circuit is changed into a matrix that contains its minimum unit, and the most all isomery equivalent electrical circuit form of changing into matrix is deposited in the isomery equivalent electrical circuit database;
Search results store mainly is responsible for the isomery equivalent electrical circuit matrix data that searches in the isomery equivalent electrical circuit database is stored, and wait for that simultaneously Configuration Control Unit sends data output signal, is sent to isomery equivalent electrical circuit mapping block with the isomery equivalent electrical circuit matrix data that is stored in the search results store;
Configuration Control Unit mainly is responsible for the isomery equivalent electrical circuit matrix that control will deposit in the search results store and is sent to isomery equivalent electrical circuit mapping block, and control simultaneously isomery equivalent electrical circuit mapping block faulty circuit is reshuffled, with the restoring circuit normal function;
Isomery equivalent electrical circuit mapping block comprises isomery equivalent electrical circuit matrix converter, configuration store controller, config memory, Configuration Control Unit, configuration interface module, isomery equivalent electrical circuit mapping block mainly is responsible for importing into from search results store isomery equivalent electrical circuit matrix changes into corresponding with it configuration file coding, access again corresponding configuration file, carry out reshuffling of faulty circuit, to recover faulty circuit.
Description of drawings
The overall construction drawing of a kind of isomery fault tolerable circuit design system based on the space search technology that Fig. 1 provides for the utility model.
The inner structure design drawing of the fault detection module that Fig. 2 provides for the utility model.
The fault detect process flow diagram that Fig. 3 provides for the utility model.
The inner structure design drawing of the localization of fault module that Fig. 4 provides for the utility model.
The software realization flow figure of the space search module that Fig. 5 provides for the utility model.
The inner structure design drawing of the isomery equivalent electrical circuit mapping block that Fig. 6 provides for the utility model.
Embodiment
See also Fig. 1, a kind of isomery fault tolerable circuit design system based on the space search technology, it comprises fault detection part (1), space search part (2), isomery circuit database part (3), restructural reparation circuit part (4); Described fault detection part (1) comprises fault detection module (1-1), localization of fault module (1-2) and failure message storer (1-3); Described space search part (2) comprises isomery equivalent electrical circuit search module (2-1) and database data read-out controller (2-2); Described isomery circuit database part (3) comprises isomery equivalent electrical circuit database (3-1) and search results store (3-2); Described restructural is repaired circuit part (4) and is comprised Configuration Control Unit (4-1) and isomery equivalent electrical circuit mapping block (4-2).
The signal input part of described fault detection module (1-1) is connected in functional circuit, the signal output part of fault detection module (1-1) connects localization of fault module (1-2), the signal output part of described localization of fault module (1-2) connects failure message storer (1-3), and the search of simultaneous faults locating module (1-2) starts output signal and connects isomery equivalent electrical circuit search module (2-1), and the data-out port of failure message storer (1-3) connects isomery equivalent electrical circuit search module (2-1); The search signal output port of isomery equivalent electrical circuit search module (2-1) connects isomery equivalent electrical circuit database (3-1), and the Search Results output signal port connection data database data read-out controller (2-2) of while isomery equivalent electrical circuit search module (2-1), the Data Control output signal port of database data read-out controller (2-2) connects isomery equivalent electrical circuit database (3-1); The data-out port of isomery equivalent electrical circuit database (3-1) connects the data-in port of search results store (3-2), and the signal output port of search results store (3-2) connects isomery equivalent electrical circuit mapping block (4-2); The search result data enabling signal port of reading of Configuration Control Unit (4-1) connects search results store (3-2), and the enabling signal port of reshuffling of Configuration Control Unit (4-1) connects isomery equivalent electrical circuit mapping block (4-2) simultaneously.
Fault detection module is responsible for protected circuit is carried out real-time fault detect; send fault-signal when detecting the backward localization of fault module of fault; see also Fig. 2; the fault detect implementation of fault detection module is; send (one group 0 of one group of mathematical logic by control processor (1-11) to controll plant (1-13); 1 combination); latch (1-12) is responsible for every group of Digital Logic that access control processor sends; the Digital Logic that again controll plant is received returns to control processor and sending value compares in data comparator (1-14); if comparative result is consistent; then non-fault occurs, if inconsistent then have fault to occur.The specific implementation flow process of fault detect, see also Fig. 3, after starting fault detect, controller sends the logic numeral to controlled circuit, after the Digital Logic after controlled circuit is received the controller transmission, after having passed through whole circuit, controlled circuit returns to control processor with this Digital Logic again, by control processor the Digital Logic that sends and the Digital Logic that receives are delivered to data comparator and carry out data relatively, judge again whether data relatively are consistent, if consistent non-fault then, control processor sends one group of new array logic again, carries out fault detect again; If inconsistent then have fault to occur, then start the localization of fault module.
The localization of fault module mainly is responsible for just carrying out the accurate location of trouble unit after receiving the fault-signal that fault detection module sends, see also Fig. 4, after receiving the fault-signal that sends from fault detection module at controller (1-21), controller just sends to fault search module (1-22) and starts the fault search signal, after the fault search module is accurately located the trouble unit of faulty circuit, by trouble unit identification module (1-23) trouble unit that searches is carried out error bit sign, and then the trouble unit corrupted bits of information is changed into coordinate form be stored in the fault coordinate information buffer (1-24).
The failure message storer mainly is responsible for storing the accurate coordinates positional information of the trouble unit that spreads out of through fault coordinate information buffer.
Isomery equivalent electrical circuit search module belongs to the Software for Design part, its major function is after receiving fault detect and localization of fault information, isomery equivalent electrical circuit search module just carries out step by step traversal search to the isomery equivalent electrical circuit matrix in the isomery equivalent electrical circuit database, searching the equivalent electrical circuit that only need get around trouble unit gets final product, see also Fig. 5, the specific implementation process of isomery equivalent electrical circuit search module is for after receiving fault detect and localization of fault information, isomery equivalent electrical circuit search module starts the search of isomery equivalent electrical circuit matrix, at first the localization of fault coordinate information is read in, again the trouble unit information of reading in is converted to the data group that contains trouble unit information, then the data group that embedding is contained trouble unit information is passed to searcher, searcher starts search, judge again searched to circuit matrix in whether contain trouble unit, then continue search until search the isomery circuit matrix that does not contain trouble unit if having, if without then finishing search, illustrate that searcher has searched suitable isomery equivalent electrical circuit matrix, whole search procedure finishes.
The database data read-out controller is responsible for receiving the isomery fault tolerable circuit matrix of isomery equivalent electrical circuit search module transmission and is searched for complete signal, and controls simultaneously the isomery equivalent electrical circuit matrix that isomery equivalent electrical circuit database will search and send search results store to.
Isomery equivalent electrical circuit database belongs to the Software for Design part; the establishment mode in usage data storehouse forms structure with the minimum unit of protected circuit; carry out the design of a plurality of isomery equivalent electrical circuit; this isomery equivalent electrical circuit database will comprise the isomery equivalent electrical circuit that all can get around each minimum unit fault after building up; each isomery equivalent electrical circuit is changed into a matrix that contains its minimum unit, and the most all isomery equivalent electrical circuit form of changing into matrix is deposited in the isomery equivalent electrical circuit database.
After the search of isomery equivalent electrical circuit matrix is complete, the isomery equivalent electrical circuit matrix data that search results store is responsible for searching in the isomery equivalent electrical circuit database stores, and wait for that simultaneously Configuration Control Unit sends data output signal, is sent to isomery equivalent electrical circuit mapping block with the isomery equivalent electrical circuit matrix data that is stored in the search results store.
After the isomery equivalent electrical circuit matrix data storage that search results store searches in isomery equivalent electrical circuit database, Configuration Control Unit will receive the configuration enabled instruction, and the isomery equivalent electrical circuit matrix that responsible control will be deposited in the search results store is sent to isomery equivalent electrical circuit mapping block, and controls simultaneously isomery equivalent electrical circuit mapping block faulty circuit is reshuffled.
Isomery equivalent electrical circuit mapping block mainly is responsible for importing into from search results store isomery equivalent electrical circuit matrix changes into corresponding with it configuration file coding, accesses corresponding configuration file again, carries out reshuffling of faulty circuit, to recover faulty circuit.See also Fig. 6, after configuration store controller (4-22) receives the configuration enabling signal, the configuration store controller will be controlled isomery equivalent electrical circuit matrix converter (4-21) the isomery equivalent electrical circuit matrix that reads in will be converted into corresponding with it configuration file coding, from config memory (4-23), access corresponding configuration file again, then the configuration file that will download of Configuration Control Unit (4-24) control config memory reaches configuration interface module (4-25), the configuration interface module then downloads to configuration file in the sheet in the config memory, to finish whole failover process.
Good effect of the present utility model: the mode that the utility model adopts software and hardware to combine, realized the On-line Self-repairing process based on the faulty circuit of FPGA, propose first to adopt search isomery equivalent electrical circuit database to be equipped with again the fault-tolerance approach that dynamic reconfigurable is repaired, solved Redundancy Design and wasted the problem of resource in a large amount of sheets, design has very strong practicality.
In sum, above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit; All based on above-mentioned basic ideas, do not break away from various changes and the modification done in this creation spirit and the scope, all should belong to scope disclosed in the utility model.
Claims (10)
1. isomery fault tolerable circuit design system based on the space search technology, it is characterized in that: this tolerant system comprises fault detection part (1), space search part (2), isomery circuit database part (3), restructural is repaired circuit part (4); Described fault detection part (1) comprises fault detection module (1-1), localization of fault module (1-2) and failure message storer (1-3), described space search part (2) comprises isomery equivalent electrical circuit search module (2-1) and database data read-out controller (2-2), described isomery circuit database part (3) comprises isomery equivalent electrical circuit database (3-1) and search results store (3-2), and described restructural is repaired circuit part (4) and comprised Configuration Control Unit (4-1) and isomery equivalent electrical circuit mapping block (4-2);
Fault detection part (1) directly links to each other with functional circuit.The signal input part of described fault detection module (1-1) is connected in functional circuit, the signal output part of fault detection module (1-1) connects localization of fault module (1-2), the signal output part of described localization of fault module (1-2) connects failure message storer (1-3), and the search of simultaneous faults locating module (1-2) starts output signal and connects isomery equivalent electrical circuit search module (2-1), and the data-out port of failure message storer (1-3) connects isomery equivalent electrical circuit search module (2-1);
The search signal output port of isomery equivalent electrical circuit search module (2-1) connects isomery equivalent electrical circuit database (3-1), and the Search Results output signal port connection data database data read-out controller (2-2) of while isomery equivalent electrical circuit search module (2-1), the Data Control output signal port of database data read-out controller (2-2) connects the control signal receiving port of isomery equivalent electrical circuit database (3-1);
The data-out port of isomery equivalent electrical circuit database (3-1) connects the data-in port of search results store (3-2), and the signal output port of search results store (3-2) connects isomery equivalent electrical circuit mapping block (4-2);
The search result data enabling signal port of reading of Configuration Control Unit (4-1) connects search results store (3-2), and the enabling signal port of reshuffling of Configuration Control Unit (4-1) connects isomery equivalent electrical circuit mapping block (4-2) simultaneously.
2. a kind of isomery fault tolerable circuit design system based on the space search technology according to claim 1, it is characterized in that: the fault detection module (1-1) of fault detection part (1) comprises control processor (1-11), latch (1-12), controll plant (1-13) and data comparator (1-14);
The data sending terminal of control processor (1-11) connects the command input end of latch (1-12);
The data output end of latch (1-12) connects the data receiver of controll plant (1-13);
Controll plant (1-13) is the detected circuit part, and its data output end connects the data receiver of latch (1-12);
The compare enable signal receiving end of data comparator (1-14) connects the compare enable signal transmit port of control processor (1-11), and the data receiver port of while data comparator connects the data-out port of latch (1-12).
3. a kind of isomery fault tolerable circuit design system based on the space search technology according to claim 1, it is characterized in that: the localization of fault module (1-2) of fault detection part (1) comprises controller (1-21), fault search module (1-22), trouble unit identification module (1-23) and fault coordinate information buffer (1-24).
The fault search enabling signal output port of controller (1-21) connects the fault search enabling signal input port of fault search module (1-22), and the failure message control output end mouth of same Time Controller (1-21) connects the data output control terminal mouth of fault coordinate information buffer (1-24);
The fault detect settling signal output port of fault search module (1-22) connects the receiver port of trouble unit identification module (1-23);
The signal output port of trouble unit identification module (1-23) connects the input port of fault coordinate information buffer (1-24);
The Data Control input port of fault coordinate information buffer (1-24) connects the data output control terminal mouth of controller (1-21), and the data-out port of simultaneous faults coordinate information buffer connects the data-in port of failure message storer (1-3).
4. a kind of isomery fault tolerable circuit design system based on the space search technology according to claim 1, it is characterized in that: the data-out port of failure message storer (1-3) connects the failure message receiving port of isomery equivalent electrical circuit search module (2-1), and its data receiver port connects the signal output part of localization of fault module (1-2);
5. a kind of isomery fault tolerable circuit design system based on the space search technology according to claim 1, it is characterized in that: the search signal output port of isomery equivalent electrical circuit search module (2-1) connects isomery equivalent electrical circuit database (3-1) data receiver port, the isomery equivalent electrical circuit database data receiving port of isomery equivalent electrical circuit search module connects the data-out port of isomery equivalent electrical circuit database (3-1), the data receiver port of the Search Results output signal port connection data database data read-out controller (2-2) of isomery equivalent electrical circuit search module, the failure message receiving port of isomery equivalent electrical circuit search module connects the data-out port of failure message storer (1-3), and the localization of fault information receiving module of isomery equivalent electrical circuit search module connects the failure message output port of localization of fault module (1-2);
6. a kind of isomery fault tolerable circuit design system based on the space search technology according to claim 1, it is characterized in that: the Data Control output signal port of database data read-out controller (2-2) connects isomery equivalent electrical circuit database (3-1), and the data receiver port of database data read-out controller connects the search signal output port of isomery equivalent electrical circuit search module (2-1):
7. a kind of isomery fault tolerable circuit design system based on the space search technology according to claim 1, it is characterized in that: the data receiver port of isomery equivalent electrical circuit database (3-1) connects the search signal output port of isomery equivalent electrical circuit search module (2-1), the data-out port of isomery equivalent electrical circuit database connects the isomery equivalent electrical circuit database data receiving port of isomery equivalent electrical circuit search module (2-1), the Data Control output signal port of the control signal receiving port connection data database data read-out controller (2-2) of isomery equivalent electrical circuit database; The isomery equivalent electrical circuit data-out port of isomery equivalent electrical circuit database connects the data receiver port of search results store (3-2);
8. a kind of isomery fault tolerable circuit design system based on the space search technology according to claim 1, it is characterized in that: the data receiver port of search results store (3-2) connects the isomery equivalent electrical circuit data-out port of isomery equivalent electrical circuit database (3-1), the data-out port of search results store connects the search result data receiving port of isomery equivalent electrical circuit mapping block (4-2), and the configuration signal receiving port of search results store connects the configuration signal output port of Configuration Control Unit (4-1):
9. a kind of isomery fault tolerable circuit design system based on the space search technology according to claim 1, it is characterized in that: the configuration signal output port of Configuration Control Unit (4-1) connects the configuration signal receiving port of search results store (3-2), Configuration Control Unit reshuffle that the control signal output port connects isomery equivalent electrical circuit mapping block (4-2) reshuffle the control signal receiving port;
10. a kind of isomery fault tolerable circuit design system based on the space search technology according to claim 1, it is characterized in that: isomery equivalent electrical circuit mapping block (4-2) comprises isomery equivalent electrical circuit matrix converter (4-21), configuration store controller (4-22), config memory (4-23), Configuration Control Unit (4-24), configuration interface module (4-25);
The data receiver port of isomery equivalent electrical circuit matrix converter (4-21) connects the data-out port of search results store (3-2), its control signal receiving port connects the control signal transmit port of configuration store controller (4-22), and its transformation result output port connects config memory (4-23);
The control signal output port of configuration store controller (4-22) connects the control signal receiving port of isomery equivalent electrical circuit matrix converter (4-21);
The data receiver port of config memory (4-23) connects the data-out port of isomery equivalent electrical circuit matrix converter (4-21), and its data-out port is connected in configuration interface module (4-25) simultaneously;
The control signal output port of Configuration Control Unit (4-24) connects the configuration enabling signal receiving port of config memory (4-23);
The data receiver port of configuration interface module (4-25) connects the data-out port of config memory (4-23).
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102799734A (en) * | 2012-07-20 | 2012-11-28 | 天津工大瑞工光电技术有限公司 | Design system for heterogeneous fault-tolerant circuits based on spatial search technology |
| CN107329906A (en) * | 2017-05-10 | 2017-11-07 | 北京邮电大学 | A kind of multiple dimensioned failure bitmap buffer structure of high bandwidth |
| CN110969818A (en) * | 2019-11-14 | 2020-04-07 | 中国航空工业集团公司西安航空计算技术研究所 | Airplane fire alarm signal detection system |
-
2012
- 2012-07-20 CN CN 201220358795 patent/CN202677396U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102799734A (en) * | 2012-07-20 | 2012-11-28 | 天津工大瑞工光电技术有限公司 | Design system for heterogeneous fault-tolerant circuits based on spatial search technology |
| CN107329906A (en) * | 2017-05-10 | 2017-11-07 | 北京邮电大学 | A kind of multiple dimensioned failure bitmap buffer structure of high bandwidth |
| CN107329906B (en) * | 2017-05-10 | 2018-07-03 | 北京邮电大学 | A kind of multiple dimensioned failure bitmap buffer structure of high bandwidth |
| CN110969818A (en) * | 2019-11-14 | 2020-04-07 | 中国航空工业集团公司西安航空计算技术研究所 | Airplane fire alarm signal detection system |
| CN110969818B (en) * | 2019-11-14 | 2022-03-08 | 中国航空工业集团公司西安航空计算技术研究所 | Airplane fire alarm signal detection system |
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