CN105785167A - Portable fault injection system suitable for external field test - Google Patents
Portable fault injection system suitable for external field test Download PDFInfo
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- CN105785167A CN105785167A CN201610122036.6A CN201610122036A CN105785167A CN 105785167 A CN105785167 A CN 105785167A CN 201610122036 A CN201610122036 A CN 201610122036A CN 105785167 A CN105785167 A CN 105785167A
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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 present invention relates to a portable fault injection system suitable for an external field test, belonging to the technical field of testing. The system comprises a structural component (1), a common connecting interface (2), and a multi-point switch cascade adapter (3). The structural component (1) is connected to the common connecting interface, and the fault injection and testing resource in the structural component (1) is transmitted to the common connecting interface (2). The common connecting interface (2) is connected to the multi-point switch cascade adapter (3), and the fault injection and testing resource is connected to the needed input end of the multi-point switch cascade adapter (3). The multi-point switch cascade adapter (3) is connected to the fault injection input end of a tested device, and the fault injection and signal testing of the tested device is realized through the fault injection and testing resource inputted by the common connecting interface. By using the device to implement multi-point switch cascade fault injection, the controllability of a multi-point switch cascade fault injection process can be greatly enhanced, and the operation is more convenient and efficient.
Description
Technical field
The present invention relates to a kind of portable fault injection system suitable in field testing test, belong to testability technical field.
Background technology
Testability is that equipment is easy to test and the significant design characteristic of diagnosis, carry out testability related work in the equipment life complete period, with technical research, there is important learning value and Engineering Guidance meaning, through development for many years, the independent educational project that testability has had become as and reliability, maintainability are of equal importance, and in order to realize the examination to equipment Test design level, it is necessary to the testability level of equipment is evaluated and checking.At present, one compares directly and efficiently method and tests for carrying out testability demonstration, and the main technological means realized is direct fault location, and it is in highly important status as the core in testability test in checking work.Failure Injection Technique is born in 20 century 70s, and develop rapidly in many decades, become a kind of important technical carrying out product diagnosis capability and testability design verification, Failure Injection Technique is by injecting fault to tested exemplar artificially, realize the fault simulation to tested exemplar, thus obtaining abundant fault sample at short notice, and then realize the evaluation of the assessment to tested products testability index and testability design.Generally, testability demonstration experiment work is carried out in laboratory conditions, and it is limited by the volume of subjects, weight, scale, in some cases, test enforcement personnel need to carry out experiment work in the actually used outfield of equipment or comprehensive joint-trial platform, this just requires that a set of perfect equipment being applicable to field trial enforcement is to support carrying out of field trial, present invention is generally directed to the field testing verification experimental verification demand in testability demonstration, devise a kind of portable fault injection system suitable in field testing test, from realizing precisely, convenient, the angle of Safety Injection, extend the range of application of Failure Injection Technique, to a kind of practical and new way easily can be provided for the checking of equipment Test design with evaluating.
Summary of the invention
The purpose of the present invention: propose a kind of portable fault injection system suitable in field testing test, the problem that under the field condition that its objective is to solve to be out at present, direct fault location implementation is inefficient, controllability is low, risk is uncontrollable, complicated operation, mode are comparatively single.
Technical scheme: a kind of portable fault injection system suitable in field testing test, including:
Construction package (1), public mating interface (2), multipoint switch cascade adapter (3)；
Construction package (1) is connected with public mating interface, and the direct fault location in construction package (1) and test resource are transferred to public mating interface (2)；
Public mating interface (2) is connected with multipoint switch cascade adapter (3), and direct fault location and test resource are connected to the input needed for multipoint switch cascade adapter (3)；
Multipoint switch cascade adapter (3) is connected with the direct fault location input of equipment under test, and the direct fault location inputted by public mating interface and test resource realize the direct fault location to equipment under test and signal testing.
Wherein,
Construction package (1) is made up of PXI cabinet (11), PXI cabinet bracing means (12), cabinet display external member (13)；
PXI cabinet (11) loads the PXI functional cards needed for direct fault location, and PXI board contains direct fault location and test resource；
PXI cabinet bracing means (12) is body structure, case intracorporeal space is adaptive with PXI cabinet (11) shape size, PXI cabinet (11) is inserted into PXI cabinet bracing means (12) inner side, is fixed on inside PXI cabinet bracing means (12) by PXI cabinet (11) with bolt；
Cabinet display external member (13) is fixed on the upper surface of PXI cabinet bracing means (12), and cabinet display external member (13) is connected with the functional cards in PXI cabinet (11).
Wherein,
Cabinet display external member (13) includes keyboard and display screen；
Keyboard and the upper surface consistent size of PXI cabinet bracing means (12), be fixed by bolts to the upper surface of PXI cabinet bracing means (12)；
The upper surface consistent size of display screen and PXI cabinet bracing means (12), the lower end of display screen is bolted on the upper end of keyboard.Display screen can around connecting the operation that axle carries out launching with packing up.
Wherein,
Multipoint switch cascade adapter (3) comprises interface module (31), special module (32), (33) three parts of universal test resource module are injected in multipoint switch cascade；
Interface module (31) one end is connected with public mating interface (2), and the other end injects special module (32) with multipoint switch cascade, universal test resource module (33) is connected；
Interface module (31) comprises two parts: connects cable, is connected between the back panel connector of public mating interface and multipoint switch cascade adapter.Back panel connector, is connected to interface module and connects between cable and multipoint switch cascade adapter operation front panel；
Accommodation function module (32) is injected in multipoint switch cascade, injected by interface module (31) operational failure and program-controlled resistor in test resource and power switch to connection status, the resistive load between the direct fault location point of multiple measurands, carry out forcibly changing to fault preset value, and then measurand is carried out direct fault location；
Wherein, multipoint switch cascade is injected accommodation function module (32) and is included six subregions, each partitioned organization is identical, and the first subregion comprises the first single-pole single-throw switch (SPST) K1, the second single-pole single-throw switch (SPST) K2, the 3rd single-pole single-throw switch (SPST) K3, the first tri-state switch K19, the first positive direct fault location point S1+, the first negative direct fault location point S1-；Second subregion comprises the 4th single-pole single-throw switch (SPST) K4, the 5th single-pole single-throw switch (SPST) K5, the 6th single-pole single-throw switch (SPST) K6, the second tri-state switch K20, the second positive direct fault location point S2+, the second negative direct fault location point S2-；3rd subregion comprises the 7th single-pole single-throw switch (SPST) K7, the 8th single-pole single-throw switch (SPST) K8, the 9th single-pole single-throw switch (SPST) K9, the 3rd tri-state switch K21, the 3rd positive direct fault location point S3+, the 3rd negative direct fault location point S3-；4th subregion comprises the tenth single-pole single-throw switch (SPST) K10, the 11st single-pole single-throw switch (SPST) K11, the 12nd single-pole single-throw switch (SPST) K12, the 4th tri-state switch K22, the 4th positive direct fault location point S4+, the 4th negative direct fault location point S4-；5th subregion comprises the 13rd single-pole single-throw switch (SPST) K13, the 14th single-pole single-throw switch (SPST) K14, the 15th single-pole single-throw switch (SPST) K15, the 5th tri-state switch K23, the 5th positive direct fault location point S5+, the 5th negative direct fault location point B5-；6th subregion comprises the 16th single-pole single-throw switch (SPST) K16, the 17th single-pole single-throw switch (SPST) K17, the 18th single-pole single-throw switch (SPST) K18, the 6th tri-state switch K24, the 6th positive direct fault location point S6+, the 6th negative direct fault location point S6-；
The fixing end of the first single-pole single-throw switch (SPST) K1 is connected by the right link of the program-controlled resistor passage G1 that interface module is drawn with public mating interface, the right link of the first single-pole single-throw switch (SPST) K1 and the left link of the 3rd single-pole single-throw switch (SPST) K3 and grammed switch passage S7 are connected, the fixing end of the second single-pole single-throw switch (SPST) K2 is connected with positive direct fault location point S1+ end, the right link of the second single-pole single-throw switch (SPST) K2 and the left link of the 3rd single-pole single-throw switch (SPST) K3 and grammed switch passage S7 are connected, the left link of the first tri-state switch K19 and the right link of the 3rd single-pole single-throw switch (SPST) K3 and grammed switch passage S7 are connected, the right link of the first tri-state switch K19 and the first negative direct fault location point S1-are connected；
The fixing end of the 4th single-pole single-throw switch (SPST) K4 is connected by the right link of the program-controlled resistor passage G2 that interface module is drawn with public mating interface.The right link of the 4th single-pole single-throw switch (SPST) K4 and the left link of the 6th single-pole single-throw switch (SPST) K6 and grammed switch passage S8 are connected, and the fixing end of the 5th single-pole single-throw switch (SPST) K5 is connected with positive direct fault location point S2+ end.The right link of the 5th single-pole single-throw switch (SPST) K5 and the left link of the 6th single-pole single-throw switch (SPST) K6 and grammed switch passage S8 are connected, the left link of the second tri-state switch K20 and the right link of the 6th single-pole single-throw switch (SPST) K6 and grammed switch passage S8 are connected, and the right link of the second tri-state switch K20 and the second negative direct fault location point S2-are connected；
The fixing end of the 7th single-pole single-throw switch (SPST) K7 is connected by the right link of the program-controlled resistor passage G3 that interface module is drawn with public mating interface.The right link of the 7th single-pole single-throw switch (SPST) K7 and the left link of the 9th single-pole single-throw switch (SPST) K9 and grammed switch passage S9 are connected, and the fixing end of the 8th single-pole single-throw switch (SPST) K8 is connected with positive direct fault location point S3+ end.The right link of the 8th single-pole single-throw switch (SPST) K8 and the left link of the 9th single-pole single-throw switch (SPST) K9 and grammed switch passage S9 are connected, the left link of the 3rd tri-state switch K21 and the right link of the 9th single-pole single-throw switch (SPST) K9 and grammed switch passage S9 are connected, and the right link of the 3rd tri-state switch K21 and the 3rd negative direct fault location point B1 are connected；
The fixing end of the tenth single-pole single-throw switch (SPST) K10 is connected by the right link of the program-controlled resistor passage G4 that interface module is drawn with public mating interface.The right link of the tenth single-pole single-throw switch (SPST) K10 and the left link of the 12nd single-pole single-throw switch (SPST) K12 and grammed switch passage S10 are connected, and the fixing end of the 11st single-pole single-throw switch (SPST) K11 is connected with positive direct fault location point S4+ end.The right link of the 11st single-pole single-throw switch (SPST) K11 and the left link of the 12nd single-pole single-throw switch (SPST) K12 and grammed switch passage S10 are connected, the left link of the 4th tri-state switch K22 and the right link of the 12nd single-pole single-throw switch (SPST) K12 and grammed switch passage S10 are connected, and the right link of the 4th tri-state switch K22 and the 4th negative direct fault location point S4-are connected；
The fixing end of the 13rd single-pole single-throw switch (SPST) K13 is connected by the right link of the program-controlled resistor passage G5 that interface module is drawn with public mating interface.The right link of the 13rd single-pole single-throw switch (SPST) K13 and the left link of the 15th single-pole single-throw switch (SPST) K15 and grammed switch passage S11 are connected, and the fixing end of the 14th single-pole single-throw switch (SPST) K14 is connected with positive direct fault location point S5+ end.The right link of the 14th single-pole single-throw switch (SPST) K14 and the left link of the 15th single-pole single-throw switch (SPST) K15 and grammed switch passage S11 are connected, the left link of the 5th tri-state switch K23 and the right link of the 15th single-pole single-throw switch (SPST) K15 and grammed switch passage S11 are connected, and the right link of the 5th tri-state switch K23 and the 5th negative direct fault location point S5-are connected；
The fixing end of the 16th single-pole single-throw switch (SPST) K16 is connected by the right link of the program-controlled resistor passage G6 that interface module is drawn with public mating interface.The right link of the 16th single-pole single-throw switch (SPST) K16 and the left link of the 18th single-pole single-throw switch (SPST) K18 and grammed switch passage S12 are connected, and the fixing end of the 17th single-pole single-throw switch (SPST) K17 is connected with positive direct fault location point S6+ end.The right link of the 17th single-pole single-throw switch (SPST) K17 and the left link of the 18th single-pole single-throw switch (SPST) K18 and grammed switch passage S12 are connected, the left link of the 6th tri-state switch K24 and the right link of the 18th single-pole single-throw switch (SPST) K18 and grammed switch passage S12 are connected, and the right link of the 6th tri-state switch K24 and the 6th negative direct fault location point S6-are connected；
Positive direct fault location point S1+, S2+, S3+, S4+, S5+, S6+ and 6 equipment under test positive direct fault location point connect respectively, negative direct fault location point S1-, S2-, S3-, S4-, S5-, S6-and 6 equipment under test negative direct fault location point connect respectively；
Universal test resource module (33) is connected with the direct fault location end of equipment under test, introduce direct fault location and the direct fault location switch in test resource, serial port module, digital multimeter, source measuring unit, any mode block by interface module (31), test product electric parameter is simulated, controls and measures.
Advantages of the present invention: the present invention is directed to the demand of field testing verification experimental verification in testability demonstration, it is proposed that a kind of portable fault injection system, solves that conventional failure injection device volume is big, equipment is heavy, the not problem such as Portable belt.Operator can carry this fault injection system easily and carry out testability test in outfield neatly, and this device can be used can to complete building of multipoint switch tandem type direct fault location environment at short notice, and multipoint switch tandem type direct fault location can be completed by " semi-automatic ", " manually " both of which, it is also possible in direct fault location process, realize the monitor in real time to direct fault location key parameter and record.Multipoint switch tandem type direct fault location is implemented, it is possible to be greatly enhanced the controllability of multipoint switch tandem type direct fault location process, operate more convenient, efficient by this device.
Accompanying drawing illustrates:
Fig. 1 is the real work line schematic diagram of the present invention；
Fig. 2 is the construction package composition schematic diagram of the present invention；
Fig. 3 is the public mating interface structural representation of the present invention
Fig. 4 is the multipoint switch cascade adapter front and back panel schematic diagram of the present invention；
Fig. 5 is multipoint switch cascade injection module first and third, five subregion fundamental diagram of the present invention；
Fig. 6 is multipoint switch cascade injection module first and third, five subregion fundamental diagram of the present invention；
Fig. 7 uses a kind of portable fault injection system suitable in field testing test of the present invention to carry out multipoint switch tandem type direct fault location flow chart.
In figure, symbol description is as follows:
S1+: positive direct fault location point 1
S2+: positive direct fault location point 2
S3+: positive direct fault location point 3
S4+: positive direct fault location point 4
S5+: positive direct fault location point 5
S6+: positive direct fault location point 6
S1-: negative direct fault location point 1
S2-: negative direct fault location point 2
S3-: negative direct fault location point 3
S4-: negative direct fault location point 4
S5-: negative direct fault location point 5
S6-: negative direct fault location point 6
K19, K20, K21, K22, K23, K24: tri-state switch
K1, K2, K3, K4, K5, K6, K7, K8, K9, K10, K11, K12, K13, K14, K15, K16, K17, K18: single-pole single-throw switch (SPST)
Pickering40-297-050: program-controlled resistor
Pickering40-198-002: direct fault location switchs
Pickering40-160-003: grammed switch
NI4071: plate card type digital multimeter
NI4130: source measuring unit
AMC5214C: Serial Communication Card
AMC4405A: arbitrarily mode block
Detailed description of the invention:
Below in conjunction with accompanying drawing, the present invention is described in further detail.
A kind of portable fault injection system suitable in field testing test is made up of construction package (1), public mating interface (2) and multipoint switch cascade adapter (3), as shown in Figure 1.
Construction package (1) is connected with public mating interface, and the direct fault location in structure group (1) part and test resource are transferred to public mating interface (2)；
Public mating interface (2) is connected with multipoint switch cascade adapter (3), and direct fault location and test resource are connected to the input needed for multipoint switch cascade adapter (3)；The effect of public mating interface (2) is to be drawn with test signal by the direct fault location in PXI cabinet (11), operator in the process of direct fault location is avoided to contact with the direct of adapter on PXI cabinet (11) panel, preventing the accidental damage of PXI cabinet (11) interior board, the structure of public mating interface (2) is as shown in Figure 3.
Multipoint switch cascade adapter (3) is connected with the direct fault location input of equipment under test, and equipment under test is carried out direct fault location and signal testing by the direct fault location that the PXI cabinet (11) inputted by public mating interface (2) is comprised and test resource.
Wherein,
Construction package (1) is made up of PXI cabinet (11), PXI cabinet bracing means (12), cabinet display external member (13), as shown in Figure 2；
PXI cabinet (11) loads the PXI functional cards needed for direct fault location, and PXI cabinet contains direct fault location and test resource in (11).；
PXI cabinet bracing means (12) is body structure, case intracorporeal space is adaptive with PXI cabinet (11) shape size, PXI cabinet (11) is inserted into PXI cabinet bracing means (12) inner side, is fixed on inside PXI cabinet bracing means (12) by PXI cabinet (11) with bolt；The shock resistance of PXI cabinet (11) can be promoted, alleviate PXI cabinet (11) under fortuitous event and be likely to the damaged condition being subject to.
Cabinet display external member (13) is fixed on the upper surface of PXI cabinet bracing means (12), and cabinet display external member (13) is connected with the functional cards in PXI cabinet (11).
Wherein,
Cabinet display external member (13) includes keyboard and display screen；
Keyboard and the upper surface consistent size of PXI cabinet bracing means (12), be fixed by bolts to the upper surface of PXI cabinet bracing means (12)；
The upper surface consistent size of display screen and PXI cabinet bracing means (12), the lower end of display screen is bolted on the upper end of keyboard.Display screen can around connecting the operation that axle carries out launching with packing up.
Cabinet display external member (13) and PXI cabinet (11) one large-scale notebook computer of composition, direct fault location and data monitoring gatherer process for testability test provide and show intuitively.
Wherein,
Multipoint switch cascade adapter (3) comprises interface module (31), special module (32), (33) three parts of universal test resource module are injected in multipoint switch cascade, as shown in Figure 4；
Interface module (31) one end is connected with public mating interface (2), and the other end injects special module (32) with multipoint switch cascade, universal test resource module (33) is connected；
Interface module (31) comprises two parts: connects cable, is connected between the back panel connector of public mating interface and multipoint switch cascade adapter.Back panel connector, is connected to interface module and connects between cable and multipoint switch cascade adapter operation front panel；
The controllable resistor input that the effect of interface module (31) is needed for the program-controlled resistor in PXI cabinet (11) being injected accommodation function module (32) with multipoint switch cascade in multipoint switch cascade adapter (3) by public mating interface (2) is connected, grammed switch input needed for the power switch in PXI cabinet (11) being injected accommodation function module (32) with multipoint switch cascade in multipoint switch cascade adapter (3) by public mating interface (2) is connected, and by public mating interface (2), the direct fault location in PXI cabinet (11) is switched, digital multimeter, source measuring unit, serial port module, any mode block, it is connected with the required input measured of generic resource test module (33) in multipoint switch cascade adapter (3).
Accommodation function module (32) is injected in multipoint switch cascade, use the program-controlled resistor in PXI cabinet (11) and power switch resource to connection status, the resistive load between the direct fault location point of multiple measurands by interface module (31), carry out forcibly changing to fault preset value, and then measurand is carried out direct fault location；
Wherein, multipoint switch cascade is injected accommodation function module (32) and is included six subregions, each partitioned organization is identical, and the first subregion comprises the first single-pole single-throw switch (SPST) K1, the second single-pole single-throw switch (SPST) K2, the 3rd single-pole single-throw switch (SPST) K3, the first tri-state switch K19, the first positive direct fault location point S1+, the first negative direct fault location point S1-；Second subregion comprises the 4th single-pole single-throw switch (SPST) K4, the 5th single-pole single-throw switch (SPST) K5, the 6th single-pole single-throw switch (SPST) K6, the second tri-state switch K20, the second positive direct fault location point S2+, the second negative direct fault location point S2-；3rd subregion comprises the 7th single-pole single-throw switch (SPST) K7, the 8th single-pole single-throw switch (SPST) K8, the 9th single-pole single-throw switch (SPST) K9, the 3rd tri-state switch K21, the 3rd positive direct fault location point S3+, the 3rd negative direct fault location point S3-；4th subregion comprises the tenth single-pole single-throw switch (SPST) K10, the 11st single-pole single-throw switch (SPST) K11, the 12nd single-pole single-throw switch (SPST) K12, the 4th tri-state switch K22, the 4th positive direct fault location point S4+, the 4th negative direct fault location point S4-；5th subregion comprises the 13rd single-pole single-throw switch (SPST) K13, the 14th single-pole single-throw switch (SPST) K14, the 15th single-pole single-throw switch (SPST) K15, the 5th tri-state switch K23, the 5th positive direct fault location point S5+, the 5th negative direct fault location point B5-；6th subregion comprises the 16th single-pole single-throw switch (SPST) K16, the 17th single-pole single-throw switch (SPST) K17, the 18th single-pole single-throw switch (SPST) K18, the 6th tri-state switch K24, the 6th positive direct fault location point S6+, the 6th negative direct fault location point S6-, as shown in figs. 5 and 6.
The fixing end of the first single-pole single-throw switch (SPST) K1 is connected by the right link of the program-controlled resistor passage G1 that interface module is drawn with public mating interface, the right link of the first single-pole single-throw switch (SPST) K1 and the left link of the 3rd single-pole single-throw switch (SPST) K3 and grammed switch passage S7 are connected, the fixing end of the second single-pole single-throw switch (SPST) K2 is connected with positive direct fault location point S1+ end, the right link of the second single-pole single-throw switch (SPST) K2 and the left link of the 3rd single-pole single-throw switch (SPST) K3 and grammed switch passage S7 are connected, the left link of the first tri-state switch K19 and the right link of the 3rd single-pole single-throw switch (SPST) K3 and grammed switch passage S7 are connected, the right link of the first tri-state switch K19 and the first negative direct fault location point S1-are connected；
The fixing end of the 4th single-pole single-throw switch (SPST) K4 is connected by the right link of the program-controlled resistor passage G2 that interface module is drawn with public mating interface.The right link of the 4th single-pole single-throw switch (SPST) K4 and the left link of the 6th single-pole single-throw switch (SPST) K6 and grammed switch passage S8 are connected, and the fixing end of the 5th single-pole single-throw switch (SPST) K5 is connected with positive direct fault location point S2+ end.The right link of the 5th single-pole single-throw switch (SPST) K5 and the left link of the 6th single-pole single-throw switch (SPST) K6 and grammed switch passage S8 are connected, the left link of the second tri-state switch K20 and the right link of the 6th single-pole single-throw switch (SPST) K6 and grammed switch passage S8 are connected, and the right link of the second tri-state switch K20 and the second negative direct fault location point S2-are connected；
The fixing end of the 7th single-pole single-throw switch (SPST) K7 is connected by the right link of the program-controlled resistor passage G3 that interface module is drawn with public mating interface.The right link of the 7th single-pole single-throw switch (SPST) K7 and the left link of the 9th single-pole single-throw switch (SPST) K9 and grammed switch passage S9 are connected, and the fixing end of the 8th single-pole single-throw switch (SPST) K8 is connected with positive direct fault location point S3+ end.The right link of the 8th single-pole single-throw switch (SPST) K8 and the left link of the 9th single-pole single-throw switch (SPST) K9 and grammed switch passage S9 are connected, the left link of the 3rd tri-state switch K21 and the right link of the 9th single-pole single-throw switch (SPST) K9 and grammed switch passage S9 are connected, and the right link of the 3rd tri-state switch K21 and the 3rd negative direct fault location point B1 are connected；
The fixing end of the tenth single-pole single-throw switch (SPST) K10 is connected by the right link of the program-controlled resistor passage G4 that interface module is drawn with public mating interface.The right link of the tenth single-pole single-throw switch (SPST) K10 and the left link of the 12nd single-pole single-throw switch (SPST) K12 and grammed switch passage S10 are connected, and the fixing end of the 11st single-pole single-throw switch (SPST) K11 is connected with positive direct fault location point S4+ end.The right link of the 11st single-pole single-throw switch (SPST) K11 and the left link of the 12nd single-pole single-throw switch (SPST) K12 and grammed switch passage S10 are connected, the left link of the 4th tri-state switch K22 and the right link of the 12nd single-pole single-throw switch (SPST) K12 and grammed switch passage S10 are connected, and the right link of the 4th tri-state switch K22 and the 4th negative direct fault location point S4-are connected；
The fixing end of the 13rd single-pole single-throw switch (SPST) K13 is connected by the right link of the program-controlled resistor passage G5 that interface module is drawn with public mating interface.The right link of the 13rd single-pole single-throw switch (SPST) K13 and the left link of the 15th single-pole single-throw switch (SPST) K15 and grammed switch passage S11 are connected, and the fixing end of the 14th single-pole single-throw switch (SPST) K14 is connected with positive direct fault location point S5+ end.The right link of the 14th single-pole single-throw switch (SPST) K14 and the left link of the 15th single-pole single-throw switch (SPST) K15 and grammed switch passage S11 are connected, the left link of the 5th tri-state switch K23 and the right link of the 15th single-pole single-throw switch (SPST) K15 and grammed switch passage S11 are connected, and the right link of the 5th tri-state switch K23 and the 5th negative direct fault location point S5-are connected；
The fixing end of the 16th single-pole single-throw switch (SPST) K16 is connected by the right link of the program-controlled resistor passage G6 that interface module is drawn with public mating interface.The right link of the 16th single-pole single-throw switch (SPST) K16 and the left link of the 18th single-pole single-throw switch (SPST) K18 and grammed switch passage S12 are connected, and the fixing end of the 17th single-pole single-throw switch (SPST) K17 is connected with positive direct fault location point S6+ end.The right link of the 17th single-pole single-throw switch (SPST) K17 and the left link of the 18th single-pole single-throw switch (SPST) K18 and grammed switch passage S12 are connected, the left link of the 6th tri-state switch K24 and the right link of the 18th single-pole single-throw switch (SPST) K18 and grammed switch passage S12 are connected, and the right link of the 6th tri-state switch K24 and the 6th negative direct fault location point S6-are connected；
Positive direct fault location point S1+, S2+, S3+, S4+, S5+, S6+ and 6 equipment under test positive direct fault location point connect respectively, negative direct fault location point S1-, S2-, S3-, S4-, S5-, S6-and 6 equipment under test negative direct fault location point connect respectively；
Universal test resource module (33) is connected with the direct fault location end of equipment under test, introduce the direct fault location switch in PXI cabinet (11), serial port module, digital multimeter, source measuring unit, any mode block totally 5 kinds of direct fault location and test resource by interface module (31), test product electric parameter is simulated, controls and measures.
Based on a kind of fault filling method of portable fault injection system suitable in field testing test of the present invention as it is shown in fig. 7, specifically comprising the following steps that of the method
Step 1: the PXI cabinet (11) in opening structure assembly (1) and cabinet display external member (13), by multipoint switch cascade adapter (3) by public mating interface (2) to PXI cabinet (11).
Step 2: carry out multipoint switch cascading failure injection mode on adapter casing and arrange.Wherein, direct fault location mode includes single channel and injects and inject with multichannel, and semi-automatic injection or be manually injected into.Concrete implantation step is according to the multipoint switch tandem type direct fault location practical situation to carry out and demand, adapter casing is arranged accordingly, the content arranged is the state arranging switch K1-K24, and tests the setting carrying out test resource in module at generic resource.
Step 3: showing that external member (13) operates the stress and stress injection mode that arrange single multipoint switch tandem type direct fault location on interface at PXI cabinet (11) software by cabinet, stress injection mode includes being continuously injected into and being intermittently injecting.
Step 4: according to multipoint switch tandem type direct fault location mode, study subject is connected with direct fault location point；
Step 5: perform direct fault location, runs upper computer software, according to the setting of step 2 and 3, tested exemplar is carried out direct fault location operation.If semi-automatic injection way, then needing to complete direct fault location operation according to the physical quantity that need to inject by the mode of manual toggle switch K1, K2, K5, K6, K9, K10, K13, K14, K17, K18, K21, K22, the beginning of direct fault location is operated by programme-control with end；If being manually injected into pattern, need toggle switch K3, K7, K11, K15, K19, K23 manually, complete direct fault location operation further according to the physical quantity that need to inject by the mode of manual toggle switch K1, K2, K5, K6, K9, K10, K13, K14, K17, K18, K21, K22 subsequently.
Step 6: whether failure judgement is injected successful, including following two sub-steps:
Step 61: if direct fault location success, then terminate this test use-case operation.
Step 62: if direct fault location is unsuccessful, then return step 3, and change is arranged and parameter, again carries out direct fault location operation under the new condition that arranges.
Claims (4)
1. the portable fault injection system being applicable to field testing test, it is characterised in that including:
Construction package (1), public mating interface (2), multipoint switch cascade adapter (3)；
Construction package (1) is connected with public mating interface, and the direct fault location in construction package (1) and test resource are transferred to public mating interface (2)；
Public mating interface (2) is connected with multipoint switch cascade adapter (3), and direct fault location and test resource are connected to the input needed for multipoint switch cascade adapter (3)；
Multipoint switch cascade adapter (3) is connected with the direct fault location input of equipment under test, and the direct fault location inputted by public mating interface and test resource realize the direct fault location to equipment under test and signal testing.
2. as claimed in claim 1 a kind of suitable in field testing test portable fault injection system, it is characterised in that
Construction package (1) is made up of PXI cabinet (11), PXI cabinet bracing means (12), cabinet display external member (13)；
PXI cabinet (11) loads the PXI functional cards needed for direct fault location, and PXI board contains direct fault location and test resource；
PXI cabinet bracing means (12) is body structure, case intracorporeal space is adaptive with PXI cabinet (11) shape size, PXI cabinet (11) is inserted into PXI cabinet bracing means (12) inner side, is fixed on inside PXI cabinet bracing means (12) by PXI cabinet (11) with bolt；
Cabinet display external member (13) is fixed on the upper surface of PXI cabinet bracing means (12), and cabinet display external member (13) is connected with the functional cards in PXI cabinet (11).
3. as claimed in claim 2 a kind of suitable in field testing test portable fault injection system, it is characterised in that
Cabinet display external member (13) includes keyboard and display screen；
Keyboard and the upper surface consistent size of PXI cabinet bracing means (12), be fixed by bolts to the upper surface of PXI cabinet bracing means (12)；
The upper surface consistent size of display screen and PXI cabinet bracing means (12), the lower end of display screen is bolted on the upper end of keyboard.Display screen can around connecting the operation that axle carries out launching with packing up.
4. as claimed in claim 1 a kind of suitable in field testing test portable fault injection system, it is characterised in that
Multipoint switch cascade adapter (3) comprises interface module (31), special module (32), (33) three parts of universal test resource module are injected in multipoint switch cascade；
Interface module (31) one end is connected with public mating interface (2), and the other end injects special module (32) with multipoint switch cascade, universal test resource module (33) is connected；
Interface module (31) comprises two parts: connects cable, is connected between the back panel connector of public mating interface and multipoint switch cascade adapter.Back panel connector, is connected to interface module and connects between cable and multipoint switch cascade adapter operation front panel；
Accommodation function module (32) is injected in multipoint switch cascade, injected by interface module (31) operational failure and program-controlled resistor in test resource and power switch to connection status, the resistive load between the direct fault location point of multiple measurands, carry out forcibly changing to fault preset value, and then measurand is carried out direct fault location；
Wherein, multipoint switch cascade is injected accommodation function module (32) and is included six subregions, each partitioned organization is identical, and the first subregion comprises the first single-pole single-throw switch (SPST) K1, the second single-pole single-throw switch (SPST) K2, the 3rd single-pole single-throw switch (SPST) K3, the first tri-state switch K19, the first positive direct fault location point S1+, the first negative direct fault location point S1-；Second subregion comprises the 4th single-pole single-throw switch (SPST) K4, the 5th single-pole single-throw switch (SPST) K5, the 6th single-pole single-throw switch (SPST) K6, the second tri-state switch K20, the second positive direct fault location point S2+, the second negative direct fault location point S2-；3rd subregion comprises the 7th single-pole single-throw switch (SPST) K7, the 8th single-pole single-throw switch (SPST) K8, the 9th single-pole single-throw switch (SPST) K9, the 3rd tri-state switch K21, the 3rd positive direct fault location point S3+, the 3rd negative direct fault location point S3-；4th subregion comprises the tenth single-pole single-throw switch (SPST) K10, the 11st single-pole single-throw switch (SPST) K11, the 12nd single-pole single-throw switch (SPST) K12, the 4th tri-state switch K22, the 4th positive direct fault location point S4+, the 4th negative direct fault location point S4-；5th subregion comprises the 13rd single-pole single-throw switch (SPST) K13, the 14th single-pole single-throw switch (SPST) K14, the 15th single-pole single-throw switch (SPST) K15, the 5th tri-state switch K23, the 5th positive direct fault location point S5+, the 5th negative direct fault location point B5-；6th subregion comprises the 16th single-pole single-throw switch (SPST) K16, the 17th single-pole single-throw switch (SPST) K17, the 18th single-pole single-throw switch (SPST) K18, the 6th tri-state switch K24, the 6th positive direct fault location point S6+, the 6th negative direct fault location point S6-；
The fixing end of the first single-pole single-throw switch (SPST) K1 is connected by the right link of the program-controlled resistor passage G1 that interface module is drawn with public mating interface, the right link of the first single-pole single-throw switch (SPST) K1 and the left link of the 3rd single-pole single-throw switch (SPST) K3 and grammed switch passage S7 are connected, the fixing end of the second single-pole single-throw switch (SPST) K2 is connected with positive direct fault location point S1+ end, the right link of the second single-pole single-throw switch (SPST) K2 and the left link of the 3rd single-pole single-throw switch (SPST) K3 and grammed switch passage S7 are connected, the left link of the first tri-state switch K19 and the right link of the 3rd single-pole single-throw switch (SPST) K3 and grammed switch passage S7 are connected, the right link of the first tri-state switch K19 and the first negative direct fault location point S1-are connected；
The fixing end of the 4th single-pole single-throw switch (SPST) K4 is connected by the right link of the program-controlled resistor passage G2 that interface module is drawn with public mating interface.The right link of the 4th single-pole single-throw switch (SPST) K4 and the left link of the 6th single-pole single-throw switch (SPST) K6 and grammed switch passage S8 are connected, and the fixing end of the 5th single-pole single-throw switch (SPST) K5 is connected with positive direct fault location point S2+ end.The right link of the 5th single-pole single-throw switch (SPST) K5 and the left link of the 6th single-pole single-throw switch (SPST) K6 and grammed switch passage S8 are connected, the left link of the second tri-state switch K20 and the right link of the 6th single-pole single-throw switch (SPST) K6 and grammed switch passage S8 are connected, and the right link of the second tri-state switch K20 and the second negative direct fault location point S2-are connected；
The fixing end of the 7th single-pole single-throw switch (SPST) K7 is connected by the right link of the program-controlled resistor passage G3 that interface module is drawn with public mating interface.The right link of the 7th single-pole single-throw switch (SPST) K7 and the left link of the 9th single-pole single-throw switch (SPST) K9 and grammed switch passage S9 are connected, and the fixing end of the 8th single-pole single-throw switch (SPST) K8 is connected with positive direct fault location point S3+ end.The right link of the 8th single-pole single-throw switch (SPST) K8 and the left link of the 9th single-pole single-throw switch (SPST) K9 and grammed switch passage S9 are connected, the left link of the 3rd tri-state switch K21 and the right link of the 9th single-pole single-throw switch (SPST) K9 and grammed switch passage S9 are connected, and the right link of the 3rd tri-state switch K21 and the 3rd negative direct fault location point B1 are connected；
The fixing end of the tenth single-pole single-throw switch (SPST) K10 is connected by the right link of the program-controlled resistor passage G4 that interface module is drawn with public mating interface.The right link of the tenth single-pole single-throw switch (SPST) K10 and the left link of the 12nd single-pole single-throw switch (SPST) K12 and grammed switch passage S10 are connected, and the fixing end of the 11st single-pole single-throw switch (SPST) K11 is connected with positive direct fault location point S4+ end.The right link of the 11st single-pole single-throw switch (SPST) K11 and the left link of the 12nd single-pole single-throw switch (SPST) K12 and grammed switch passage S10 are connected, the left link of the 4th tri-state switch K22 and the right link of the 12nd single-pole single-throw switch (SPST) K12 and grammed switch passage S10 are connected, and the right link of the 4th tri-state switch K22 and the 4th negative direct fault location point S4-are connected；
The fixing end of the 13rd single-pole single-throw switch (SPST) K13 is connected by the right link of the program-controlled resistor passage G5 that interface module is drawn with public mating interface.The right link of the 13rd single-pole single-throw switch (SPST) K13 and the left link of the 15th single-pole single-throw switch (SPST) K15 and grammed switch passage S11 are connected, and the fixing end of the 14th single-pole single-throw switch (SPST) K14 is connected with positive direct fault location point S5+ end.The right link of the 14th single-pole single-throw switch (SPST) K14 and the left link of the 15th single-pole single-throw switch (SPST) K15 and grammed switch passage S11 are connected, the left link of the 5th tri-state switch K23 and the right link of the 15th single-pole single-throw switch (SPST) K15 and grammed switch passage S11 are connected, and the right link of the 5th tri-state switch K23 and the 5th negative direct fault location point S5-are connected；
The fixing end of the 16th single-pole single-throw switch (SPST) K16 is connected by the right link of the program-controlled resistor passage G6 that interface module is drawn with public mating interface.The right link of the 16th single-pole single-throw switch (SPST) K16 and the left link of the 18th single-pole single-throw switch (SPST) K18 and grammed switch passage S12 are connected, and the fixing end of the 17th single-pole single-throw switch (SPST) K17 is connected with positive direct fault location point S6+ end.The right link of the 17th single-pole single-throw switch (SPST) K17 and the left link of the 18th single-pole single-throw switch (SPST) K18 and grammed switch passage S12 are connected, the left link of the 6th tri-state switch K24 and the right link of the 18th single-pole single-throw switch (SPST) K18 and grammed switch passage S12 are connected, and the right link of the 6th tri-state switch K24 and the 6th negative direct fault location point S6-are connected；
Positive direct fault location point S1+, S2+, S3+, S4+, S5+, S6+ and 6 equipment under test positive direct fault location point connect respectively, negative direct fault location point S1-, S2-, S3-, S4-, S5-, S6-and 6 equipment under test negative direct fault location point connect respectively；
Universal test resource module (33) is connected with the direct fault location end of equipment under test, introduce direct fault location and the direct fault location switch in test resource, serial port module, digital multimeter, source measuring unit, any mode block by interface module (31), test product electric parameter is simulated, controls and measures.
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Application publication date: 20160720 |