CN114355101A - Electromagnetic fault diagnostor based on three-way magnetic sensor and system and method thereof - Google Patents
Electromagnetic fault diagnostor based on three-way magnetic sensor and system and method thereof Download PDFInfo
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- CN114355101A CN114355101A CN202111495566.2A CN202111495566A CN114355101A CN 114355101 A CN114355101 A CN 114355101A CN 202111495566 A CN202111495566 A CN 202111495566A CN 114355101 A CN114355101 A CN 114355101A
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Abstract
The invention provides an electromagnetic fault diagnostor based on three-way magnetic sensors, a system and a method thereof, which comprises an electromagnetic measurement array consisting of a plurality of three-way magnetic sensors, a connecting cable, a data acquisition and transmission device, a data receiving and comparing device and a historical electromagnetic information base, wherein the plurality of three-way magnetic sensors are arranged at the relative position of a product, the numerical values in the three directions of X, Y and Z corresponding to electromagnetic field vector signals generated when the product works under the correct working condition are recorded to generate a whole course curve and are used as a judgment basis, a plurality of batches of same products in the same subsequent state are measured at the same position at the same angle to obtain the vector signals, and the curve difference of the same products in different time domains is analyzed to realize the electromagnetic fault diagnosis. The fault diagnosis method used by the invention is a non-contact fault diagnosis method, has low cost and simple realization, can realize real-time electromagnetic health monitoring and fault diagnosis of a plurality of components in a product by fewer electromagnetic sensors, and is particularly suitable for large-batch similar products.
Description
Technical Field
The invention relates to the technical field of aerospace products, in particular to an electromagnetic fault diagnosis device based on a three-way magnetic sensor, a system and a method thereof, and particularly relates to an electromagnetic fault diagnosis method based on a three-way magnetic sensor.
Background
In the flight of batch products in various sub-fields such as aerospace delivery, weapons, satellites and the like, a part of the batch products are operated by using a fixed program controlled by a single chip microcomputer. The method comprises the steps of burning a preset program into a single chip mechanism, and sequentially sending instructions to an execution mechanism in a specified running time to realize various functions, such as sequentially opening a servo mechanism, opening a self-locking valve, opening an electromagnetic valve 1, opening an electromagnetic valve 2, closing the electromagnetic valve 1, closing the electromagnetic valve 2 and the like according to a set time sequence.
Patent document No. CN102831749A discloses a magnetic sensor failure alarm device which is mounted on a magnetic sensor and includes a voltage comparator and a failure alarm. According to the invention, by adding the fault alarm device of the magnetic sensor, the function that the AGV can automatically correct the fault after misleading the driving route is achieved, the possibility of damage to the AGV and the equipment carried by the AGV is avoided, and the purpose of safe operation is achieved.
Most of the existing testing methods for the fixed program process collect current and voltage signals of the input end and the output end of the control end, and the testing methods have the possibility of misjudgment, such as the situation that the actual functions of products cannot be judged by using the current and voltage signals when the input signal of the control end but the output end fails or the polarity of the output end is wrong. Therefore, a technical solution is needed to improve the above technical problems.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide an electromagnetic fault diagnoser based on a three-way magnetic sensor, a system and a method thereof.
The invention provides an electromagnetic fault diagnosis system based on three-way magnetic sensors, which comprises an electromagnetic measurement array, a connecting cable, a data acquisition and transmission device, a data receiving and comparing device and a historical electromagnetic information base, wherein the electromagnetic measurement array is composed of a plurality of three-way magnetic sensors; the three-way magnetic sensor is arranged around a tested object at a fixed relative position to form an electromagnetic measurement array, the electromagnetic measurement array is connected with the data acquisition and transmission device through a connecting cable, electromagnetic signals generated in the test process of the tested object are acquired and processed, standard signals are acquired and recorded at the initial stage to be formulated as fault diagnosis criteria, and the electromagnetic signals and the standard signals of the like products are compared during later-stage test.
Preferably, a plurality of the three-way magnetic sensors are installed at positions differentiated from a plurality of electromagnetic reactions of the product.
Preferably, the connecting cable is used for connecting the three-way magnetic sensor with the data acquisition transmitter to transmit data of the three-way magnetic sensor, and the outer layer of the connecting cable is provided with a shielding sleeve.
Preferably, the data collection transmitter collects, stores and transmits data collected by the single or multiple three-way magnetic sensors.
Preferably, the data receiving comparator receives real-time data from the collecting transmitter, and the data receiving comparator stores the electromagnetic information with normal time sequence.
Preferably, the data receiving comparator compiles a program, compares each three-way magnetic sensor collected in real time with a stored historical electromagnetic information base of the time sequence, and displays normality or abnormality according to the compiling judgment basis, and diagnoses the cause of the abnormal electromagnetic signal when the electromagnetic signal is abnormal.
Preferably, the historical electromagnetic information base is all the electromagnetic information which is recorded during the test and possibly occurs, and the historical electromagnetic information base comprises normal electromagnetic information when the electromagnetic elements normally operate according to a fixed program and electromagnetic information when the electromagnetic elements abnormally operate according to the program.
Preferably, the information in the historical electromagnetic information base is collected when the same type of product and the product with the same electromagnetic element layout are operated according to the same fixed program and the three-way magnetic sensor layout is the same.
The invention also provides an electromagnetic fault diagnosis method based on the three-way magnetic sensor, which applies the electromagnetic fault diagnosis system based on the three-way magnetic sensor, and comprises the following steps:
step S1: three vector electromagnetic sensors are distributed at rocket fixing positions to form an electromagnetic measurement array, and a connecting cable and a data acquisition transmitter are installed;
step S2: establishing a historical electromagnetic information base, and recording electromagnetic information which operates under the normal state and various fault states of a product;
step S3: arranging three vector electromagnetic sensors at the same positions of the same product, importing the historical electromagnetic information base established in the step S2 into a data receiving comparator, and compiling criteria;
step S4: when the product runs according to the program in the singlechip, the electromagnetic measurement array continuously collects electromagnetic vector signals, and newly received data in the receiving comparator is compared with data in the historical electromagnetic information base, so that the electromagnetic fault diagnosis of a plurality of components of the product is realized.
The invention also provides an electromagnetic fault diagnosis device, which comprises the electromagnetic fault diagnosis system based on the three-way magnetic sensor, and the electromagnetic fault diagnosis device realizes the steps of the method when in application.
Compared with the prior art, the invention has the following beneficial effects:
1. the fault diagnosis method used by the invention is a non-contact fault diagnosis method, has low cost and simple realization, can realize real-time electromagnetic health monitoring and fault diagnosis of a plurality of components in a product by fewer electromagnetic sensors, and is particularly suitable for large-batch similar products;
2. the method not only can monitor the normal operation of the product, but also can realize high fault diagnosis rate as long as all fault possibilities can be fully considered when the historical information base is manufactured;
3. the invention is non-contact, the nondestructive monitoring method can not damage the structure of the original product, can not interfere the operation of the original product, can realize real-time monitoring on the valve magnetic signal of the measured object in a closed environment, can realize the measurement of some original non-measurable links or objects, and improves the testability and reliability of the product;
4. the invention can greatly reduce the working flow, cost and period required by the test for large-batch similar products.
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Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a block diagram of the present invention;
FIG. 2 is a flow diagram of the present invention.
Wherein:
data acquisition transmitter 3 of electromagnetic measurement array 1
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention. All falling within the scope of the present invention.
Referring to fig. 1 and 2, the invention provides an electromagnetic fault diagnosis system based on three-way magnetic sensors, which comprises an electromagnetic measurement array 1 consisting of a plurality of three-way magnetic sensors, a connecting cable 2, a data acquisition transmitter 3, a data receiving comparator 4 and a historical electromagnetic information base; a plurality of three-dimensional magnetic sensors are installed around the measured object with fixed relative position, form electromagnetic measurement array 1, and electromagnetic measurement array 1 is connected through connecting cable 2 with data acquisition transmitter 3, and the electromagnetic signal that will be produced by measured object test process carries out the collection processing, and the record is gathered to the signal of standard in the initial stage to formulate the failure diagnosis criterion, compare the electromagnetic signal and the standard signal of like product during later stage test, realize failure diagnosis.
Aiming at the operation of some products by a fixed program controlled by a single chip microcomputer. The method comprises the steps of burning a preset program in a single chip mechanism, and sequentially sending instructions to an execution mechanism in a specified running time to realize various functions, wherein the actions of all components can generate an electromagnetic environment, so that the electromagnetic measurement array 1 is fixed at multiple positions of a product by a plurality of three-way magnetic sensors, and the electromagnetic vectors of the product in various time sequences can be better measured when the program runs. The connecting cable 2 is used for transmitting the electromagnetic information of the electromagnetic measurement array 1 to the data acquisition transmitter 3, and the data acquisition transmitter transmits the electromagnetic information to the data receiving comparator to be compared and analyzed with the electromagnetic information in the historical electromagnetic information base under the same program in real time, so that electromagnetic health monitoring and fault diagnosis can be performed on products.
The three-way magnetic sensor layout contained in the electromagnetic measurement array 1 is arranged at a position with a higher discrimination for receiving magnetic signals, and specific number and installation position can be determined according to the installation position of a specific product magnetic element and the effect of recording a historical electromagnetic information library. Once the electromagnetic measuring array 1 is determined, the installation on the same type of product cannot be changed at will. An electromagnetic shielding sleeve is arranged outside the connecting cable 2, and the electromagnetic conducting function of electromagnetic interference resistance is achieved. The receiving comparator can receive newly measured signal data in real time, can store the historical electromagnetic information base recorded during testing, can compile an interpretation program, and can compare the newly received data with the data in the historical electromagnetic information base to realize the electromagnetic fault diagnosis of a plurality of components of the product. The historical electromagnetic information library is all possible electromagnetic information recorded during testing, and comprises normal electromagnetic information during normal operation according to a fixed program and abnormal electromagnetic information during program operation of each electromagnetic element.
The invention provides an electromagnetic fault diagnosis method based on a three-way magnetic sensor, which comprises the following steps:
step S1: three vector electromagnetic sensors are distributed at fixed positions of rockets of certain types to form an electromagnetic measurement array 1, and a connecting cable 2 and a data acquisition transmitter 3 are installed.
Step S2: and establishing a historical electromagnetic information base, and recording the electromagnetic information which runs under the normal state and various fault states of the product.
Step S3: three vector electromagnetic sensors are arranged at the same position of the same product, a historical electromagnetic information base established in M2 is imported into a data receiving comparator, and criteria are compiled.
Step S4: when the product runs according to the program in the singlechip, the electromagnetic measurement array 1 continuously collects electromagnetic vector signals, and newly received data in the receiving comparator is compared with data in the historical electromagnetic information base, so that the electromagnetic fault diagnosis of a plurality of components of the product is realized.
The invention also provides an electromagnetic fault diagnosis device, which comprises the electromagnetic fault diagnosis system based on the three-way magnetic sensor, and the electromagnetic fault diagnosis device realizes the steps of the method when in application.
The fault diagnosis method used by the invention is a non-contact fault diagnosis method, has low cost and simple realization, can realize real-time electromagnetic health monitoring and fault diagnosis of a plurality of components in a product by fewer electromagnetic sensors, and is particularly suitable for large-batch similar products.
Those skilled in the art will appreciate that, in addition to implementing the system and its various devices, modules, units provided by the present invention as pure computer readable program code, the system and its various devices, modules, units provided by the present invention can be fully implemented by logically programming method steps in the form of logic gates, switches, application specific integrated circuits, programmable logic controllers, embedded microcontrollers and the like. Therefore, the system and various devices, modules and units thereof provided by the invention can be regarded as a hardware component, and the devices, modules and units included in the system for realizing various functions can also be regarded as structures in the hardware component; means, modules, units for performing the various functions may also be regarded as structures within both software modules and hardware components for performing the method.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (10)
1. An electromagnetic fault diagnosis system based on three-way magnetic sensors is characterized by comprising an electromagnetic measurement array (1) consisting of a plurality of three-way magnetic sensors, a connecting cable (2), a data acquisition and transmission device (3), a data receiving and comparing device (4) and a historical electromagnetic information base; a plurality of three-dimensional magnetic sensor installs around measurand with fixed relative position, forms electromagnetic measurement array (1), electromagnetic measurement array (1) is connected through connecting cable (2) with data acquisition transmitter (3), gathers the electromagnetic signal that measurand test process produced and handles, and the initial stage gathers the record to the signal of standard, formulates for the failure diagnosis criterion, compares the electromagnetic signal and the standard signal of like product during later stage test.
2. The electromagnetic fault diagnostic system based on the three-way magnetic sensor of claim 1, characterized in that: the three-way magnetic sensors are installed at positions which are differentiated from electromagnetic reactions of the product.
3. The electromagnetic fault diagnostic system based on the three-way magnetic sensor of claim 1, characterized in that: the connecting cable (2) is used for connecting the three-way magnetic sensor and the data acquisition transmitter (3) to transmit data of the three-way magnetic sensor, and the outer layer of the connecting cable (2) is provided with a shielding sleeve.
4. The electromagnetic fault diagnostic system based on the three-way magnetic sensor of claim 1, characterized in that: the data acquisition transmitter (3) collects, stores and transmits data collected by the single or multiple three-way magnetic sensors.
5. The electromagnetic fault diagnostic system based on the three-way magnetic sensor of claim 1, characterized in that: the data receiving comparator (4) receives the real-time data of the acquisition transmitter, and the data receiving comparator (4) stores the electromagnetic information with normal time sequence.
6. The electromagnetic fault diagnostic system based on the three-way magnetic sensor of claim 1, characterized in that: the data receiving comparer (4) carries out compiling program, compares each three-way magnetic sensor collected in real time with the stored historical electromagnetic information base of the time sequence, displays normal or abnormal according to compiling judgment basis, and diagnoses the reason of the abnormal electromagnetic signal when the abnormal electromagnetic signal is abnormal.
7. The electromagnetic fault diagnosis system based on the three-way magnetic sensor as claimed in claim 1, wherein the historical electromagnetic information library is all the electromagnetic information which may appear and is recorded during the test, and comprises normal electromagnetic information when the electromagnetic elements normally run according to a fixed program and abnormal electromagnetic information when the electromagnetic elements run according to a program.
8. The electromagnetic fault diagnosis system based on the three-way magnetic sensor as claimed in claim 1, wherein the information in the historical electromagnetic information base is the information collected when the same model product and the product with the same electromagnetic element layout are operated according to the same fixed program and the three-way magnetic sensor layout is the same.
9. An electromagnetic fault diagnosis method based on a three-way magnetic sensor, which is characterized by applying the electromagnetic fault diagnosis system based on the three-way magnetic sensor as claimed in any one of claims 1 to 8, and comprises the following steps:
step S1: three vector electromagnetic sensors are distributed at rocket fixed positions to form an electromagnetic measurement array (1), and a connecting cable (2) and a data acquisition transmitter (3) are installed;
step S2: establishing a historical electromagnetic information base, and recording electromagnetic information which operates under the normal state and various fault states of a product;
step S3: arranging three vector electromagnetic sensors at the same positions of the same product, importing the historical electromagnetic information base established in the step S2 into a data receiving comparator, and compiling criteria;
step S4: when the product runs according to the program in the singlechip, the electromagnetic measurement array (1) continuously collects electromagnetic vector signals, and newly received data in the receiving comparator is compared with data in the historical electromagnetic information base, so that the electromagnetic fault diagnosis of a plurality of components of the product is realized.
10. An electromagnetic fault diagnoser, characterized in that it comprises an electromagnetic fault diagnoser system based on a three-way magnetic sensor according to any of claims 1-8, which, when applied, implements the steps of the method of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111495566.2A CN114355101A (en) | 2021-12-08 | 2021-12-08 | Electromagnetic fault diagnostor based on three-way magnetic sensor and system and method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111495566.2A CN114355101A (en) | 2021-12-08 | 2021-12-08 | Electromagnetic fault diagnostor based on three-way magnetic sensor and system and method thereof |
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| CN114355101A true CN114355101A (en) | 2022-04-15 |
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| CN202111495566.2A Pending CN114355101A (en) | 2021-12-08 | 2021-12-08 | Electromagnetic fault diagnostor based on three-way magnetic sensor and system and method thereof |
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