CN104750101A - Detection apparatus and method of digital signal processing module of airborne interrogator - Google Patents
Detection apparatus and method of digital signal processing module of airborne interrogator Download PDFInfo
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- CN104750101A CN104750101A CN201510160231.3A CN201510160231A CN104750101A CN 104750101 A CN104750101 A CN 104750101A CN 201510160231 A CN201510160231 A CN 201510160231A CN 104750101 A CN104750101 A CN 104750101A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0208—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the configuration of the monitoring system
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
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Abstract
The invention provides a detection apparatus and method of a digital signal processing module of an airborne interrogator. The detection apparatus comprises a test master. The test master is connected with a backboard of a PXI (PCI extensions for Instrumentation) case through hardware functional modules with standard PXI bus interfaces. Each hardware functional module comprises a master control computer, a bus card, a 1553B card, a comprehensive interface card, a universal meter card and an oscilloscope card. The detection apparatus further comprises a test fixture and a keyboard display module; the test fixture comprises a power module, a bottom board adapter plate and a structural cavity; the structural cavity is used for supporting; the power module powers a test-piece to be tested, as required and outputs the power through the bottom board adapter plate; the keyboard display module is connected with the master control computer; the test-piece to be tested is mounted on the test fixture and is connected with a host through a cable. The detection apparatus and method has the advantages that the size is small, the cost is low, testing can be performed for functions, performances and the like of the digital signal processing module of the airborne interrogator, and device-level fault localization can be achieved.
Description
Technical field
The present invention relates to a kind of airborne inquisitor digital signal processing module detector and detection method thereof, particularly relate to one and be applicable to space industry, the special detector of airborne inquisitor internal digital signal processing module and detection method thereof.
Background technology
Airborne inquisitor is one of important composition of airborne inquiry response system, and another important composition is then airborne answering machine.After inquisitor is inquired by regulation coded format and request for utilization, wait-receiving mode is from the answer signal of airborne answering machine (absolutely empty) or carrier-borne answering machine (vacant lot), detect and translate this answer signal, to identify the identity of the carrier aircraft of this answering machine, make corresponding response for pilot or automatic surveillance and foundation is provided.These information comprise the identification of aircraft identity code, positional information and the specific position recall signal of friendly machine, emergent answer information etc.
Up to now, domestic and international market there is no the robotization special inspecting equipment carrying out the test such as function, performance, components and parts level faults location specially for airborne inquisitor digital signal processing module.
But existing means of testing mainly adopts special and common hardware functional module to carry out building test environment, is more automatically tested by the means of bus marco.The large cost of the many volumes of testing tool quantity is high, and part instrumentation is again by buying restriction; Components and parts level faults location is limited to module to be measured and reserves the few situation of test point, and a lot of characteristic signals needs directly to measure at chip pin, and need tester progressively manually to carry out troubleshooting according to software prompt, the method for there is no is accomplished automatically.
PXI technology has well open and extensibility, can realize different Functional Designs according to demand.Coordinate software flexibly, various automatic test work can be completed.PXI technology by test environment build from before the set of testing apparatus a lot of of all kinds be reduced to a cabinet and add corresponding hardware function and display control device.
The test job that the traditional complexity of PXI technical renovation is loaded down with trivial details, has carried out the new situation of portable test.
Summary of the invention
The technical problem to be solved in the present invention is to provide that a kind of volume is little, cost is low, can carry out the test such as function, performance, the airborne inquisitor digital signal processing module detector of components and parts level faults location and detection method thereof for airborne inquisitor digital signal processing module.
The technical solution used in the present invention is as follows: a kind of airborne inquisitor digital signal processing module detector, comprises Test Host, and Test Host adopts each hardware function of standard P XI bus interface to be connected by PXI case back plate; Each hardware function described comprises main control computer, bus card, 1553B card, Complex interface card, multimeter card and oscillograph card; It is characterized in that: also comprise test fixture, comprise power module, base plate card extender and structural cavity body, structural cavity body plays a supportive role, and power module is given to be measured and provided the power supply of need of work and exported by base plate card extender; Also comprise the keyboard display module be connected with described main control computer; To be measured is loaded on test fixture and is connected with main frame by cable.
As preferably, described stube cable between each to be measured and main frame is special test cable.
Based on the airborne inquisitor digital signal processing module detection method of above-mentioned detector, the detection method of Target dots processing module is: the RS422 data A of the Target dots processing module that prestores in Complex interface card; Before detection powers on, short circuit and voltage tester are carried out to Target dots processing module, guarantee without short circuit occur and each road operating voltage is normal; After detection powers on, aobvious control interface sends read bus data command by Complex interface card to Target dots processing module; Target dots processing module reads the AT96 bus control commands be stored in about Target dots processing module in Complex interface card RAM by AT96 bus, and passes through the RS422 data B of bus card analysis site mark processing module; Described RS422 data A compared with described RS422 data B, is provided the judgement of RS422 data B correctness by bus card, and display over the display; Test point test is carried out to the respective lines of makeing mistakes, according to test point characteristic localizing faults components and parts.
As preferably, the detection method of decoding module is: the decoding data A of the decoding module that prestores in Complex interface card; Before detection powers on, short circuit and voltage tester are carried out to decoding module, guarantee without short circuit occur and each road operating voltage is normal; After detection powers on, aobvious control interface sends read bus data command by Complex interface card to decoding module; Decoding module reads the AT96 bus control commands be stored in about decoding module in Complex interface card RAM by AT96 bus, and analyzes the decoding data B of decoding module by bus card; Described decoding data A compared with described decoding data B, is provided the judgement of decoding data B correctness by bus card, and display over the display.
As preferably, described decoding data comprises and video signal data, difference video signal data, Sin phase demodulation video signal data and Cos phase demodulation video signal data.
As preferably, addressable port module detection method is: the biography control data A down of the addressable port module that prestores in Complex interface card; Before detection powers on, short circuit and voltage tester are carried out to addressable port module, guarantee without short circuit occur and each road operating voltage is normal; After detection powers on, aobvious control interface sends read bus data command by Complex interface card to addressable port module; 1553B card sends down-transmitting data to addressable port module; The biography control data B down that described down-transmitting data draws addressable port module is received in Complex interface clamping; The described control data A that passes down passes down compared with control data B with described by Complex interface card, provides the judgement of the control data B of the biography down correctness of addressable port module, shows over the display.
As preferably, described addressable port module detection method also comprises, and the addressable port module of the decoding module that prestores in 1555B card uploads state of a control data A; Complex interface cartoon is crossed AT96 bus and is sent uploading data to addressable port module; What described uploading data drew by addressable port module upload status data B sends to 1555B card; The described state of a control data A that uploads uploads compared with state of a control data B with described by 1555B card, and provide the judgement of uploading state of a control data B correctness of addressable port module, display over the display.
As preferably, described in upload state of a control data and comprise coding-control data and discrete control data.
As preferably, the method for testing of described test point is: the test pictorial information adding all test point positions of described tested object; Contrast with its reference value after the measured value of practical test points is converted to waveform or data and provide judged result; Described test picture packets of information draws together test point position, signal type and test point reference waveform or data.
Compared with prior art, the invention has the beneficial effects as follows: volume is little, cost is low, the test such as function, performance can be carried out for airborne inquisitor digital signal processing module, components and parts level faults location can be realized.
Accompanying drawing explanation
Fig. 1 is the present invention's wherein embodiment mid point mark processing module detection method schematic diagram.
Fig. 2 is the present invention's wherein decoding module detection method schematic diagram in an embodiment.
Fig. 3 is the present invention's wherein addressable port module detection method schematic diagram in an embodiment.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Arbitrary feature disclosed in this instructions (comprising any accessory claim, summary and accompanying drawing), unless specifically stated otherwise, all can be replaced by other equivalences or the alternative features with similar object.That is, unless specifically stated otherwise, each feature is an example in a series of equivalence or similar characteristics.
A kind of airborne inquisitor digital signal processing module detector, comprises Test Host, and Test Host adopts each hardware function of standard P XI bus interface to be connected by PXI case back plate; Each hardware function described comprises main control computer, bus card, 1553B card, Complex interface card, multimeter card and oscillograph card; It is characterized in that: also comprise test fixture, comprise power module, base plate card extender and structural cavity body, structural cavity body plays a supportive role, and power module is given to be measured and provided the power supply of need of work and exported by base plate card extender; Also comprise the keyboard display module be connected with described main control computer; To be measured is loaded on test fixture and is connected with main frame by cable.
According to the request for utilization of this checkout equipment at internal field production line, consider during design small and exquisite portable, be easy to expand characteristic, adopt general module build, easy to use and safeguard.Host machine part all hardware module all adopts PXI standard interface, carries out data transmission, complete observing and controlling and real function by the PXI bus of the backboard of cabinet.
Described stube cable between each to be measured and main frame is special test cable.
Consider the portable design of equipment, so be furnished with the Anti-misplug design of special test cable between main frame and Special-purpose testing jig.Test cable is easy to install, dismantle and transport.Settle at one go in test process, without the need to changing stube cable.
Based on the airborne inquisitor digital signal processing module detection method of above-mentioned detector, as shown in Figure 1, the detection method of Target dots processing module is: the RS422 data A of the Target dots processing module that prestores in Complex interface card; Before detection powers on, short circuit and voltage tester are carried out to Target dots processing module, guarantee without short circuit occur and each road operating voltage is normal; After detection powers on, aobvious control interface sends read bus data command by Complex interface card to Target dots processing module; Target dots processing module reads the AT96 bus control commands be stored in about Target dots processing module in Complex interface card RAM by AT96 bus, and passes through the RS422 data B of bus card analysis site mark processing module; Described RS422 data A compared with described RS422 data B, is provided the judgement of RS422 data B correctness by bus card, and display over the display; Test point test is carried out to the respective lines of makeing mistakes, according to test point characteristic localizing faults components and parts.
As shown in Figure 2, the detection method of decoding module is: the decoding data A of the decoding module that prestores in Complex interface card; Before detection powers on, short circuit and voltage tester are carried out to decoding module, guarantee without short circuit occur and each road operating voltage is normal; After detection powers on, aobvious control interface sends read bus data command by Complex interface card to decoding module; Decoding module reads the AT96 bus control commands be stored in about decoding module in Complex interface card RAM by AT96 bus, and analyzes the decoding data B of decoding module by bus card; Described decoding data A compared with described decoding data B, is provided the judgement of decoding data B correctness by bus card, and display over the display.
Described decoding data comprises and video signal data, difference video signal data, Sin phase demodulation video signal data and Cos phase demodulation video signal data.Produce to be measured " decoding module " special vision signal by Complex interface card, and analyze the professional format decoding data of decoding module output.
As shown in Figure 3, addressable port module detection method is: the biography control data A down of the addressable port module that prestores in Complex interface card; Before detection powers on, short circuit and voltage tester are carried out to addressable port module, guarantee without short circuit occur and each road operating voltage is normal; After detection powers on, aobvious control interface sends read bus data command by Complex interface card to addressable port module; 1553B card sends down-transmitting data to addressable port module; The biography control data B down that described down-transmitting data draws addressable port module is received in Complex interface clamping; The described control data A that passes down passes down compared with control data B with described by Complex interface card, provides the judgement of the control data B of the biography down correctness of addressable port module, shows over the display.
Described addressable port module detection method also comprises, and the addressable port module of the decoding module that prestores in 1555B card uploads state of a control data A; Complex interface cartoon is crossed AT96 bus and is sent uploading data to addressable port module; What described uploading data drew by addressable port module upload status data B sends to 1555B card; The described state of a control data A that uploads uploads compared with state of a control data B with described by 1555B card, and provide the judgement of uploading state of a control data B correctness of addressable port module, display over the display.
The singularity of the signal received due to addressable port module and send, the 1553B card that us can only be adopted special and Complex interface card are analyzed.
Described state of a control data of uploading comprise coding-control data and discrete control data.
The method of testing of described test point is: the test pictorial information adding all test point positions of described tested object; Contrast with its reference value after the measured value of practical test points is converted to waveform or data and provide judged result; Described test picture packets of information draws together test point position, signal type and test point reference waveform or data.Described test pictorial information also comprises probe, test cable annexation and the test points for attention that this point of test should use.
If detect that measurand exists fault, then first the basic test point (power supply, input signal and programming device) of measurand is tested, then the output signal test point broken down is tested, when part cannot use instrument to detect, test macro provides accurate result and is judged mistake with reference to accurate result by operating personnel.
In most cases according to measured waveform or the data of test point, compare with the reference waveform gathered or data, i.e. the diagnosable components and parts that are out of order.When receiving the situations such as external interference when test point, measured result can not reflect the time of day of tested module.For radio-frequency module test, due to the impact of space radiation, when testing certain test point, may test result be caused different because operating environment is different, in this case, just can not judge components and parts quality with certain measured value of test point, but judge the quality of certain components and parts according to the Changing Pattern of a series of test point measured value of this manual test.
Claims (9)
1. an airborne inquisitor digital signal processing module detector, comprises Test Host, and Test Host adopts each hardware function of standard P XI bus interface to be connected by PXI case back plate; Each hardware function described comprises main control computer, bus card, 1553B card, Complex interface card, multimeter card and oscillograph card; It is characterized in that: also comprise test fixture, comprise power module, base plate card extender and structural cavity body, structural cavity body plays a supportive role, and power module is given to be measured and provided the power supply of need of work and exported by base plate card extender; Also comprise the keyboard display module be connected with described main control computer; To be measured is loaded on test fixture and is connected with main frame by cable.
2. detector according to claim 1, is characterized in that, described stube cable between each to be measured and main frame is special test cable.
3., based on the airborne inquisitor digital signal processing module detection method of detector according to claim 1, the detection method of Target dots processing module is: the RS422 data A of the Target dots processing module that prestores in Complex interface card; Before detection powers on, short circuit and voltage tester are carried out to Target dots processing module, guarantee without short circuit occur and each road operating voltage is normal; After detection powers on, aobvious control interface sends read bus data command by Complex interface card to Target dots processing module; Target dots processing module reads the AT96 bus control commands be stored in about Target dots processing module in Complex interface card RAM by AT96 bus, and passes through the RS422 data B of bus card analysis site mark processing module; Described RS422 data A compared with described RS422 data B, is provided the judgement of RS422 data B correctness by bus card, and display over the display; Test point test is carried out to the respective lines of makeing mistakes, according to test point characteristic localizing faults components and parts.
4. detection method according to claim 3, the detection method of decoding module is: the decoding data A of the decoding module that prestores in Complex interface card; Before detection powers on, short circuit and voltage tester are carried out to decoding module, guarantee without short circuit occur and each road operating voltage is normal; After detection powers on, aobvious control interface sends read bus data command by Complex interface card to decoding module; Decoding module reads the AT96 bus control commands be stored in about decoding module in Complex interface card RAM by AT96 bus, and analyzes the decoding data B of decoding module by bus card; Described decoding data A compared with described decoding data B, is provided the judgement of decoding data B correctness by bus card, and display over the display.
5. detection method according to claim 4, described decoding data comprises and video signal data, difference video signal data, Sin phase demodulation video signal data and Cos phase demodulation video signal data.
6. detection method according to claim 3, addressable port module detection method is: the biography control data A down of the addressable port module that prestores in Complex interface card; Before detection powers on, short circuit and voltage tester are carried out to addressable port module, guarantee without short circuit occur and each road operating voltage is normal; After detection powers on, aobvious control interface sends read bus data command by Complex interface card to addressable port module; 1553B card sends down-transmitting data to addressable port module; The biography control data B down that described down-transmitting data draws addressable port module is received in Complex interface clamping; The described control data A that passes down passes down compared with control data B with described by Complex interface card, provides the judgement of the control data B of the biography down correctness of addressable port module, shows over the display.
7., according to the detection method one of claim 3 to 6 Suo Shu, described addressable port module detection method also comprises, and the addressable port module of the decoding module that prestores in 1555B card uploads state of a control data A; Complex interface cartoon is crossed AT96 bus and is sent uploading data to addressable port module; What described uploading data drew by addressable port module upload status data B sends to 1555B card; The described state of a control data A that uploads uploads compared with state of a control data B with described by 1555B card, and provide the judgement of uploading state of a control data B correctness of addressable port module, display over the display.
8. detection method according to claim 7, described in upload state of a control data and comprise coding-control data and discrete control data.
9. detection method according to claim 3, the method for testing of described test point is: the test pictorial information adding all test point positions of described tested object; Contrast with its reference value after the measured value of practical test points is converted to waveform or data and provide judged result; Described test picture packets of information draws together test point position, signal type and test point reference waveform or data.
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