CN105573941A - Multi-source data synthesizing method - Google Patents
Multi-source data synthesizing method Download PDFInfo
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- CN105573941A CN105573941A CN201410535907.8A CN201410535907A CN105573941A CN 105573941 A CN105573941 A CN 105573941A CN 201410535907 A CN201410535907 A CN 201410535907A CN 105573941 A CN105573941 A CN 105573941A
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Abstract
The invention relates to a multi-source data synthesizing method. The method comprises the following steps: (1) defining a receiving terminal RX and redundancy sending terminals TX1 and TX2; (2) communicating by adopting a GJB289A bus; (3) defining failure modes influencing the data validity as: bus communication failure, sending terminal communication failure and sending terminal data availability; (4) defining the bus communication failure; (5) defining the sending terminal communication failure; (6) defining the sending terminal data availability; (7) defining the sending terminal data invalidation as: the bus communication failure + the sending terminal communication failure + the sending terminal data unavailability; (8) defining the sending terminal data validation as: the bus communication failure*the sending terminal communication failure* the sending terminal data availability; and (9) synthesizing data: if the TX1 is valid, using the data of the TX1 at the receiving terminal despite whether the TX2 is valid or not and if the TX1 is invalid, using the data of the TX2.
Description
Technical field
The invention belongs to technical field of data processing, relate to a kind of multi-source data integrated conduct method.
Background technology
In current aircraft system, when a data receiving terminal accepts the data of multiple redundant data transmitting terminal, how processing these redundant datas, is a technical barrier.When multiple data terminal data all effectively time, part effectively or void in whole time, how receiving terminal system uses these redundant datas, that is, how these data are carried out comprehensively? more crucially, do you how to judge the validity of data? traditional data fusion method often correctly can not judge data validity, thus receiving end data often receive the data of mistake, thus cause systemic-function abnormal, even cause the failure of task.
The present invention, from the angle of data processing, proposes the judgment criterion accurately, comprehensively determining data validity, proposes the method for aggregation of data, improves the reliability of data processing.
Summary of the invention
The object of the invention is to: the object of the invention is, for the multi-source data complex art of complex cross-linked system, provide a kind of method of multi-source data overall treatment.
Technical scheme of the present invention is: a kind of multi-source data integrated conduct method, comprises the following steps:
1) receiving terminal RX is defined, redundancy transmitting terminal TX1, TX2;
2) communication between RX and TX1, TX2 adopts GJB289A bus;
3) in order to decision data validity, the fault mode needing definition to affect data validity is: bus communication fault, transmitting terminal communication failure, transmitting terminal availability of data;
4) definition of bus communication fault: in continuous 3 data transfer cycles, receiving terminal does not receive any bus data can judge bus communication fault;
5) definition of transmitting terminal communication failure: in continuous 3 data transfer cycles, receiving terminal does not receive a certain transmitting terminal bus data, according to getting final product predicate node communication failure;
6) definition of transmitting terminal availability of data: in continuous 3 data transfer cycles, the status word that the transmitting terminal that receiving terminal receives sends is come for fault, can judge that transmitting terminal data are unavailable.The result of the content basis BIT of status word;
7) transmitting terminal data invalid=bus communication fault+transmitting terminal communication failure+transmitting terminal data are unavailable;
8) transmitting terminal data effectively=bus communication normal * transmitting terminal communication normal * transmitting terminal data can use;
9) aggregation of data method: if TX1 is effective, no matter whether TX2 is effective, and receiving terminal uses the data of TX1, if TX1 data invalid, then uses the data of TX2.
The invention has the beneficial effects as follows:
Adopt advantage of the present invention as follows:
1) validity of bus data is enhanced;
2) robustness of redundant data is enhanced;
Logic is simple, is easy to realize.
Accompanying drawing explanation
Fig. 1 is that data are cross-linked graph of a relation.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described further.
The specific embodiment of the invention is as follows:
On certain aircraft, environmental control system air administrative computing machine is the data processing core of environmental control system, and when controlling cockpit pressure, need the wheel load signal using undercarriage, data are cross-linked relation as shown in Figure 1,
In upper figure, two undercarriage controls and position instruct computer (PD1, PD2) send duplicate wheel load signal to air administrative computing machine.Air administrative computing machine needs to carry out comprehensively to wheel load signal, for this reason, devises a PD interface data integration module.According to the technical method that the present invention describes,
First interface data module judges the validity of PD1, PD2 data, then according to the data validity of PD1, PD2, then utilizes the aggregation of data scheme that the present invention describes, carries out comprehensively to the wheel load signal of PD1, PD2, and application software uses altogether.
1) defining receiving terminal is environmental control system air administrative computing machine, and transmitting terminal is undercarriage control and position instruct computer (PD1, PD2);
2) communication between receiving terminal and transmitting terminal adopts GJB289A bus;
3) defining the fault mode affecting data validity is: bus communication fault, undercarriage control and position instruct computer node communication fault, undercarriage control and position instruct computer availability of data;
4) definition of bus communication fault: in continuous 3 data transfer cycles, air administrative computing machine does not receive any bus data can judge bus communication fault;
5) definition of undercarriage control and position instruct computer node communication fault: in continuous 3 data transfer cycles, air administrative computing machine does not receive a certain undercarriage control and position instruct computer bus data certificate, can judge undercarriage control and position instruct computer communication failure;
6) definition of undercarriage control and position instruct computer availability of data: in continuous 3 data transfer cycles, air administrative computing machine receive undercarriage control and position instruct computer send status word be fault, can judge undercarriage control and position instruct computer data unavailable.The result of the content basis BIT of status word;
7) undercarriage control and position instruct computer data invalid=bus communication fault+undercarriage control and position instruct computer communication failure+undercarriage control and position instruct computer data unavailable;
8) undercarriage control and position instruct computer data effectively=NOT (undercarriage control and position instruct computer data invalid);
9) aggregation of data method: if PD1 is effective, no matter whether PD2 is effective, and air administrative computing machine interrupts the data using PD1, if PD1 data invalid, then uses the data of PD2.
Claims (1)
1. a multi-source data integrated conduct method, comprises the following steps:
1) receiving terminal RX is defined, redundancy transmitting terminal TX1, TX2;
2) communication between RX and TX1, TX2 adopts GJB289A bus;
3) in order to decision data validity, the fault mode needing definition to affect data validity is: bus communication fault, transmitting terminal communication failure, transmitting terminal availability of data;
4) definition of bus communication fault: in continuous 3 data transfer cycles, receiving terminal does not receive any bus data can judge bus communication fault;
5) definition of transmitting terminal communication failure: in continuous 3 data transfer cycles, receiving terminal does not receive a certain transmitting terminal bus data, according to getting final product predicate node communication failure;
6) definition of transmitting terminal availability of data: in continuous 3 data transfer cycles, the status word that the transmitting terminal that receiving terminal receives sends is come for fault, can judge that transmitting terminal data are unavailable.The result of the content basis BIT of status word;
7) transmitting terminal data invalid=bus communication fault+transmitting terminal communication failure+transmitting terminal data are unavailable;
8) transmitting terminal data effectively=bus communication fault * transmitting terminal communication failure * transmitting terminal data can use;
9) aggregation of data method: if TX1 is effective, no matter whether TX2 is effective, accepts the data interrupting using TX1, if TX1 data invalid, then uses the data of TX2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410535907.8A CN105573941A (en) | 2014-10-11 | 2014-10-11 | Multi-source data synthesizing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410535907.8A CN105573941A (en) | 2014-10-11 | 2014-10-11 | Multi-source data synthesizing method |
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| CN105573941A true CN105573941A (en) | 2016-05-11 |
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| CN201410535907.8A Pending CN105573941A (en) | 2014-10-11 | 2014-10-11 | Multi-source data synthesizing method |
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Cited By (3)
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| CN106200527A (en) * | 2016-08-12 | 2016-12-07 | 中国航空工业集团公司西安飞行自动控制研究所 | A kind of airborne air data system data capture method based on double remainings |
| CN108153273A (en) * | 2016-12-02 | 2018-06-12 | 上海汽车集团股份有限公司 | Signals of vehicles failure of removal diagnostic method and entire car controller |
| CN111044936A (en) * | 2019-11-28 | 2020-04-21 | 中国航空工业集团公司西安航空计算技术研究所 | Airborne GJB289A bus cable fault rapid positioning method |
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| CN111044936A (en) * | 2019-11-28 | 2020-04-21 | 中国航空工业集团公司西安航空计算技术研究所 | Airborne GJB289A bus cable fault rapid positioning method |
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Application publication date: 20160511 |