CN105510736A - Testing system and method of spaceborne equipment - Google Patents
Testing system and method of spaceborne equipment Download PDFInfo
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- CN105510736A CN105510736A CN201510845838.5A CN201510845838A CN105510736A CN 105510736 A CN105510736 A CN 105510736A CN 201510845838 A CN201510845838 A CN 201510845838A CN 105510736 A CN105510736 A CN 105510736A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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Abstract
The invention relates to a testing system and method of spaceborne equipment. The system is composed of spaceborne equipment (1), a switching matrix (2), and a measuring end (3) and is characterized in that the switching matrix (2) is a full-contact switching matrix formed by N paths of inputs and M paths of outputs and has N input terminals and M output terminals. The spaceborne equipment (1) is provided with a plurality of ports connected with the input terminals of the switching matrix; two relay switches G and F are arranged on each loop of the switching matrix (2), the relay switch G controls connection and disconnection of the input path, and the relay switch F controls connection and disconnection of the output path; the M output terminals of the switching matrix are connected with one path of common-ground signal terminal and the M-1 paths of output terminals are connected with measuring signals of an oscilloscope; and a second-level switch is connected at the rear of the M-1 paths of outputs to carry out type measurement, so that signal detection work can be carried out at the M-1 paths of paths in parallel simultaneously.
Description
Technical field
The present invention relates to Aerospace Satellite ground test field, concurrent testing field, particularly a kind of test macro of satellite borne equipment and method of testing.
Background technology
The satellite borne electronic system of satellite has the features such as test interface type is many, node is numerous, test event situation is complicated, and making docking port node carry out measuring is all adopt manually manually to complete.Test event comprises voltage tester, resistance test, digital waveform test etc., all will select the equipment that the conditions such as range accuracy are suitable for test event, then test before every test.Make testing apparatus more, test process time of using long and manually easily occur mistake like this, and can only the mode of individual node test one by one.
Although the switch matrix equipment also having some general now can be crossed and realize parallel test function, but, diversity, the test approaches of the test port of satellite carried electronic system are various, the complex situations of parameter testing project, and making needs specific switch matrix product to adapt to Auto-Test System.
Therefore, current needs provide a kind of system, it can according to the actual needs of spaceborne concurrent testing task, analysis interface test request and interface link relationship type, the optimized design of switch matrix, according to various measurement type and measurement range design switch matrix inner structure thereof, realize the parallel automatic test assignment of satellite borne electronic system.Realize system above, face problem below:
1. the input interface solving switch matrix configured with mating of the tested port of satellite borne electronic system; Output interface is connected with the coupling of measurement module.
2. solve test node according to the system of selection of the program control contact switch of the configurable switch matrix of content measurement.
3., by the parallel switching system modeling of research and resource optimization technology, the resource optimization solved between test event and testing apparatus is arranged.
Summary of the invention
This invention be research satellite live subsystem walk abreast automated testing method, the configurable program control contact switch system of selection of contact, parallel switching system modeling and resource optimization technology, contact switch state and measurement module the technical foundation such as synchronization mechanism on obtain.Develop interface concurrent automatization test system, the parallel automatic test Theories and methods of checking simultaneously.
Particularly, the invention provides a kind of test macro of satellite borne equipment, comprise: satellite borne equipment, switch matrix, and measuring junction, it is characterized in that: switch matrix forms all-contact points switch matrix for being exported by the input of N road and M road, there is N number of input end and M output terminal, satellite borne equipment is provided with the multiple ports be connected with each road input end of switch matrix, each loop of switch matrix has two relay switch G, F, switching on and off of relay G control inputs path, relay F controls switching on and off of output channel, M output of switch matrix connects a road respectively and exports termination oscilloscope measurement signal in earth signal Duan Ji M-1 road altogether, what Qie Gai M-1 road exported connects second level switch below, the type measured is carried out, such M-1 path can walk abreast simultaneously carry out input work.
The test macro of satellite borne equipment according to claim 1, wherein, is connected with after the output terminal on this M-1 each road of path and connects oscillograph end, voltage measurement end, resistance measurement end, and has 3 corresponding gating switches.
Further, wherein, the quantity S=N × M+ (M-1) * 3 of switch matrix repeat circuit
Wherein: S---relay number;
N---input end path number;
M---output terminal path number;
Further, wherein, relay G, F are also arranged in switch matrix, now, and quantity S=N × (M+2)+(M-1) * 3 of switch matrix repeat circuit
Wherein: S---relay number;
N---input end path number;
M---output terminal path number;
Further, wherein, M=5, and carry out signal monitoring by oscillographic 4 paths simultaneously.
Further, wherein,
Carry out the path of one way signal operation, closed switch must comprise: one in input end G or F, one in A ~ E, one in secondary output terminal, 3 switches close altogether, need formation test loop only to need to realize 6 switches and close, can realize measuring.
Further, wherein, when X road, (X is selected from 1 ... one in N) (Y is selected from 1 for input end and Y road ... one in N) output terminal need measuring voltage, X road connects anode, Y road connects the test of negative terminal, the switch situation of switch matrix is: switch GX closes, and FX disconnects; FY closes, and GY disconnects; AX, BY are closed, and other disconnect; Measuring junction A bus connects voltage measurement end (+), B bus connects voltage measurement end (-).
Further, wherein, realized the switch adopted on the output port circuit on same road by hardware controls, only have one can gating, namely on M path, each path only has a switch to close.
The present invention also provides a kind of method of testing of satellite borne equipment, comprise: satellite borne equipment, switch matrix, and measuring junction, it is characterized in that: switch matrix forms all-contact points switch matrix for being exported by the input of N road and M road, there is N number of input end and M output terminal, satellite borne equipment is provided with the multiple ports be connected with each road input end of switch matrix, each loop of switch matrix has two relay switch G, F, switching on and off of relay G control inputs path, relay F controls switching on and off of output channel, M output of switch matrix connects a road respectively and exports termination oscilloscope measurement signal in earth signal Duan Ji M-1 road altogether, what Qie Gai M-1 road exported connects second level switch below, the type measured is carried out, such M-1 path can walk abreast simultaneously carry out input work.
Further, wherein, when system starts to test, system performs implements monitoring step, once occur same testing apparatus simultaneously to use by two or more test event or same node carries out plural test simultaneously, then automatically carry out interrupt operation.
Accompanying drawing explanation
The schematic diagram of the spaceborne testing apparatus of Fig. 1.
Fig. 2 is the connection diagram of switch matrix.
In figure: G1 ... GN-input channel relay; F1 ... FN-output channel relay.
Embodiment
In the test process of satellite, the test for satellite borne electronic system comprises the measurement of the impedance magnitude to various annexation, the measurement of voltage value, the measurement of digital waveform signal.Utilize parallel test techniques to complete and test multiple satellite borne electronic system simultaneously, simultaneously its core to test multiple measurand.
Concurrent testing mainly by switching, to realize concurrent testing between different measurand.Measurand forms measurand group according to the mode of dual grouping, the test process of each measurand group is all independent parallel, the test of a measurand group also can carry out after not waiting until being completed of another measurand group, but the process of each measurand group close beta is still tested in order.Develop a kind of efficient switch matrix for completing such requirement, channel spacing from, the test of any two-way realizes complete independent parallel and performs, and in the test process of actual requirement, the switching number of test handoff procedure breaker in middle is minimum.
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described, see Fig. 1, Fig. 2, spaceborne testing apparatus comprises, satellite borne equipment 1, switch matrix 2 and measuring junction 3, switch matrix 2 has N number of input end and M output terminal (in figure with 5 for example), and satellite borne equipment 1 is provided with the multiple ports be connected with each road input end of switch matrix.Each loop of switch matrix has two relay switches G, F, switching on and off of relay G control inputs path, relay F controls to select switching on and off of output channel, selects test loop during for testing.M output terminal Zhong You mono-tunnel of switch matrix is common earth signal end, and all the other export termination oscilloscope measurement signal.Meeting under minimum measurement environment, test macro should be able to tap into the oscilloscope measurement signal on 4 tunnels simultaneously.Now, because oscillographic 4 road signaling interfaces are actually 4 road signal wires, 1 tunnel is earth signal line altogether, and therefore, minimum measurement output is 5 road signals (i.e. M=5), namely will realize in N road, select arbitrarily 5 tunnels for measuring and external interface extraction.Therefore, the program can realize oscillographic 4 paths for verification system and carry out signal monitoring simultaneously, and the switch matrix of the N road input of design, 5 tunnels outputs, switch matrix is wanted each channel loop to be realized independent measurement.
In a scheme of the present invention, according to the interface requirement connected the cable of system, N equals 100, when minimum measurement output is 5 road signal, the input of switch matrix Wei You 100 tunnel and 5 tunnels export composition all-contact points switch matrix, and connecing second level switch after front 4 tunnels that 5 tunnels export, the selection making switch carry out measuring type switches.
Visible, in the present invention, 5 drive test amount output terminals are completely separate, and each return passage can both realize resistance measurement, voltage measurement and waveform measurement.
See Fig. 2, what show in switch matrix internal node figure is N number of input end, the all-contact points relay array be made up of 5 output terminals (i.e. M=5, be only example, the quantity of output terminal can be greater than 5) of A to E herein.What the contact at each input and output circuit crossover location place represented is a relay switch, in addition, each test loop and each test module will have a relay switch to carry out gating setting, connect the gating switch of oscillograph (1) end, voltage measurement end (+), resistance measurement end (+) after A end; The gating switch of oscillograph (2) end, voltage measurement end (-), resistance measurement end (-) is connect after B end; The gating switch of oscillograph (3) end, voltage measurement end (+), resistance measurement end (+) is connect after C end; The gating switch of oscillograph (4) end, voltage measurement end (-), resistance measurement end (-) is connect after D end; Oscillograph (GND) end is connect after E end.Therefore, in order to realize parallel independent measurement, the computing formula of the relay quantity that switch matrix uses is:
S＝N×3+12
Wherein: S---relay number;
N---input end path number;
In addition, consider that in interface adapter, each paths needs 2 relays to carry out measuring the choice for use of type, also can be transplanted to this relay in switch matrix equipment and implement.Therefore, the computing formula of the overall relay quantity used is:
S＝N×5+12+2×N
Wherein: G---relay number;
N---input end path number;
If port number N=100, then the relay number G=100 × 5+12+2 × 100=712 of switch matrix.
If the path that one way signal runs, closed switch must comprise: one in input end G or F, one in A ~ E, one in secondary switch, and 3 switches close altogether.Therefore, forming a test loop only needs to realize 6 switches and closes, and can realize measuring.When testing apparatus is constant, as long as the switch in change input end G or F and in A ~ E, namely changes 4 switches and can change test input node.When test node is constant, as long as 2 switches of change testing apparatus end, the change of content measurement namely can be realized.Therefore, the least number of times of switching over.
In this programme, output terminal path number calculates for 5, if replace to M, above-mentioned formula is:
S＝N×M+(M-1)*3
Wherein: G---relay number;
N---input end path number;
M---output terminal path number;
Implement if be also transplanted in switch matrix equipment by this relay, then the computing formula of the overall relay quantity used is again:
S＝N×M+(M-1)*3+2×N
Be reduced to:
S＝N×(M+2)+(M-1)*3
Wherein: G---relay number;
N---input end path number;
M---output terminal path number;
The operating idea of parallel automatization test system does not waste measurement module, rationally calls various measurement module, realize completing every contact test assignment with prestissimo, improves work efficiency and the measuring accuracy of test.Test loop as shown in the figure.Select the break-make of G1 or F1 and GN or FN switch, and the selection of measurement module forms test loop.
Concurrent testing requires, between the test event for executed in parallel, to be namely mutually isolated between test loop, not have noisy.In software control, adopt dual grouping and automatically transfer the mode combined in running and carry out soft isolation, ensure the isolated controlling between parallel test loop.Namely before test, first according to the relation of input interface, test event is divided into groups, ensures on same passage, the situation that the same time there will not be same node to measure simultaneously.When system starts automatically to test, software synchronization runs the program of Automatic dispatching, monitor same testing apparatus can not synchronization use by two or more test event, and check that same node does not carry out plural test simultaneously.On hardware, adopt the switch on the output port circuit on same road, only have one can gating, namely on A ~ E path, each path only has a switch to close.Like this under software and hardware collaborate, ensure interchannel isolation.
Such as, the input end on the 1st tunnel and the output terminal on N road need measuring voltage, and the 1st tunnel connects anode, and N road connects the test of negative terminal.The switch situation of switch matrix is: switch G1 closes, and F1 disconnects; FN closes, and GN disconnects; A1, BN are closed, and other disconnect; Measuring junction is that A bus connects voltage measurement end (+), B bus connects voltage measurement end (-).Material is thus formed a complete measuring circuit.
If what measure is digital signal, need to connect oscillograph, the oscillograph itself due to 4 ports is 4 ports situations altogether, therefore the signal end of the measuring junction access measured signal of A ~ D bus, the oscillographic GND end of measurement termination of E bus.Such as, the input end on the 1st tunnel and the output terminal on N road need to measure square-wave waveform, and the 1st tunnel connects signal end, the test of N road ground connection.The switch situation of switch matrix is: switch G1 closes, and F1 disconnects; FN closes, and GN disconnects; A1, EN are closed, and other disconnect; Measuring junction A bus connects oscillograph (1), E bus connects GND end.The measuring circuit that such formation one is complete.
Last it is noted that the foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, although with reference to previous embodiment to invention has been detailed description, for a person skilled in the art, it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the test macro of a satellite borne equipment, comprise: satellite borne equipment (1), switch matrix (2), and measuring junction (3), it is characterized in that: switch matrix (2) forms all-contact points switch matrix for being exported by the input of N road and M road, there is N number of input end and M output terminal, satellite borne equipment (1) is provided with the multiple ports be connected with each road input end of switch matrix, each loop of switch matrix (2) has two relay switch G, F, switching on and off of relay G control inputs path, relay F controls switching on and off of output channel, M output of switch matrix connects a road respectively and exports termination oscilloscope measurement signal in earth signal Duan Ji M-1 road altogether, what Qie Gai M-1 road exported connects second level switch below, the type measured is carried out, such M-1 path can walk abreast simultaneously carry out input work etc.
2. the test macro of satellite borne equipment according to claim 1, wherein, is connected with after the output terminal on this M-1 each road of path and connects oscillograph end, voltage measurement end, resistance measurement end etc., and has 3 corresponding gating switches.
3. the test macro of satellite borne equipment according to claim 2, wherein, the quantity S=N × M+ (M-1) * 3 of switch matrix repeat circuit
Wherein: S---relay number;
N---input end path number;
M---output terminal path number.
4. the test macro of satellite borne equipment according to claim 2, wherein, relay G, F are also arranged in switch matrix, now, quantity S=N × (M+2)+(M-1) * 3 of switch matrix repeat circuit
Wherein: S---relay number;
N---input end path number;
M---output terminal path number.
5. the test macro of the satellite borne equipment according to claim 2-4, wherein: M=5, and carries out signal monitoring by oscillographic 4 paths simultaneously.
6. the test macro of the satellite borne equipment according to claim 2-4, wherein:
Carry out the path of one way signal operation, closed switch must comprise: one in input end G or F, one in A ~ E, one in secondary output terminal, 3 switches close altogether, need formation test loop only to need to realize 6 switches and close, can realize measuring.
7. the test macro of satellite borne equipment according to claim 1, wherein: when X road, (X is selected from 1 ... one in N) (Y is selected from 1 for input end and Y road ... one in N) output terminal need measuring voltage, X road connects anode, Y road connects the test of negative terminal, the switch situation of switch matrix is: switch GX closes, and FX disconnects; FY closes, and GY disconnects; AX, BY are closed, and other disconnect; Measuring junction A bus connects voltage measurement end (+), B bus connects voltage measurement end (-).
8. the test macro of satellite borne equipment according to claim 6, is characterized in that: realized the switch adopted on the output port circuit on same road by hardware controls, only have one can gating, namely on M path, each path only has a switch to close.
9. the method for testing of a satellite borne equipment, comprise: satellite borne equipment (1), switch matrix (2), and measuring junction (3), it is characterized in that: switch matrix (2) forms all-contact points switch matrix for being exported by the input of N road and M road, there is N number of input end and M output terminal, satellite borne equipment (1) is provided with the multiple ports be connected with each road input end of switch matrix, each loop of switch matrix (2) has two relay switch G, F, switching on and off of relay G control inputs path, relay F controls switching on and off of output channel, M output of switch matrix connects a road respectively and exports termination oscilloscope measurement signal in earth signal Duan Ji M-1 road altogether, what Qie Gai M-1 road exported connects second level switch below, the type measured is carried out, such M-1 path can walk abreast simultaneously carry out input work.
10. method of testing according to claim 9, wherein, when system starts to test, system performs implements monitoring step, once occur same testing apparatus simultaneously to use by two or more test event or same node carries out plural test simultaneously, then automatically carry out interrupt operation.
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Cited By (8)
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| CN106771554A (en) * | 2016-12-13 | 2017-05-31 | 深圳市威通科技有限公司 | Multiport microwave device test system and method |
| CN108267653A (en) * | 2017-12-13 | 2018-07-10 | 中国空间技术研究院 | A kind of low frequency interface tests switching circuit automatically |
| CN109784075A (en) * | 2019-01-08 | 2019-05-21 | 上海腾桥信息技术有限公司 | A kind of cloud distributed data base system and method that data safety is shared |
| CN110007200A (en) * | 2019-01-11 | 2019-07-12 | 华为技术有限公司 | A kind of test circuit, equipment and system |
| CN110568307A (en) * | 2019-09-12 | 2019-12-13 | 中国科学院微小卫星创新研究院 | Automatic testing device and method for satellite single-machine interface |
| CN111044816A (en) * | 2019-12-03 | 2020-04-21 | 中国船舶重工集团公司第七0九研究所 | Method and device for testing technical conditions of channels of multi-channel system |
| CN112485657A (en) * | 2020-11-09 | 2021-03-12 | 成都菁汇科技有限公司 | Self-checking method for built-in relay of matrix switch |
| CN114994402A (en) * | 2021-09-02 | 2022-09-02 | 北京荣耀终端有限公司 | Terminal module power consumption testing device, method and system |
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| CN112485657A (en) * | 2020-11-09 | 2021-03-12 | 成都菁汇科技有限公司 | Self-checking method for built-in relay of matrix switch |
| CN112485657B (en) * | 2020-11-09 | 2024-01-09 | 成都菁汇科技有限公司 | Self-checking method for built-in relay of matrix switch |
| CN114994402A (en) * | 2021-09-02 | 2022-09-02 | 北京荣耀终端有限公司 | Terminal module power consumption testing device, method and system |
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