CN108333987A - A kind of controlled failure injection device of polymorphic type multichannel - Google Patents
A kind of controlled failure injection device of polymorphic type multichannel Download PDFInfo
- Publication number
- CN108333987A CN108333987A CN201810111439.XA CN201810111439A CN108333987A CN 108333987 A CN108333987 A CN 108333987A CN 201810111439 A CN201810111439 A CN 201810111439A CN 108333987 A CN108333987 A CN 108333987A
- Authority
- CN
- China
- Prior art keywords
- module
- signal
- circuit
- fault location
- control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The present invention provides a kind of controlled failure injection devices of polymorphic type multichannel, including normal signal function module, FCM fault control module, fault simulation generation module；Corresponding access fault simulation generation module, the gating that corresponding failure simulates generation module is controlled by the FCM fault control module in the normal signal function module circuit；The FCM fault control module includes display and control unit and analogue unit, and analogue unit includes analog board and digiboard, and analog board is used for the direct fault location function of analog signal, and digiboard is used for the direct fault location function of digital signal.The present invention can realize the injection of the failure of analog circuit and digital circuit, and deficiency is designed particular for simulator selftest, conveniently realize the controlled failure injection of multiclass signal, multichannel.
Description
【Technical field】
The invention belongs to equipment testability technical field, more particularly to a kind of controllable fault injection device.
【Background technology】
During equipment testability demonstration, direct fault location is a key technology.Not only may be used by Fault Insertion Equipment
With diagnostic products failure, moreover it is possible to accurate evaluation system survivability, the Practical significance with highly significant.
Actual failure can be divided into destructive malfunction and interference type failure.Destructive malfunction includes short-circuit and open circuit etc., this
Kind failure makes the change of the structure of circuit generation essence；Interference type failure includes signal noise and external electromagnetic interference etc., this
Kind failure does not change character of circuit, only generates the variation that interference signal causes circuit performance subtle to circuit, is a kind of parametric type
Failure.Common fault pattern have signal path open circuit, signal path short circuit, signal path occur abnormal high level,
There are abnormal four kinds of fault types of low level in signal path.
In the prior art, it when carrying out direct fault location, needs direct fault location circuit being connected between bus and Devices to test,
And analog circuit and the direct fault location of digital circuit can not be realized simultaneously.In particular, if simulator selftest designs
Deficiency can not carry out subsequent remedying and effectively testing.
【Invention content】
The present invention is for the insufficient situation of simulator selftest design, using existing experiment condition, by electricity
Road failure is classified, and design realizes corresponding simulated failure circuit.Be substantially carried out on this equipment simulator signal break-make,
The direct fault location of short trouble type is simulated, and faulty circuit is connected with direct fault location plate receptor circuit, then by micro-
The gating of controller control malfunctioning module, the fault mode for injecting on suitable access needs, thus can provide multiclass failure,
The controlled failure of multichannel is injected.
The technical solution adopted by the present invention to solve the technical problems is：
A kind of controlled failure injection device of polymorphic type multichannel, including normal signal function module, which is characterized in that this
Device further includes FCM fault control module, fault simulation generation module；The corresponding access in the normal signal function module circuit
Fault simulation generation module controls the gating that corresponding failure simulates generation module by the FCM fault control module；The event
Barrier control module includes display and control unit and analogue unit, and analogue unit includes analog board and digiboard, and analog board is believed for simulating
Number direct fault location function, digiboard be used for digital signal direct fault location function；Analog board and digiboard include communication mould
Block, core processing module, direct fault location circuit；The push button signalling of the display and control unit after display and control unit microprocessor processes,
It is transmitted to core processing module by the communication module, corresponding control signal is sent out after core processing module processing, controls failure
The break-make of direct fault location relay in injection circuit realizes direct fault location.
A kind of controlled failure injection device of polymorphic type multichannel, which is characterized in that the normal signal function
Module includes signal control process module, power conversion module, connectivity checks module, enabling signal module, battery activated mould
Block, network communication module, connecting interface；The fault simulation generation module include failure of connectivity signal imitation generation module,
Startup separator signal imitation generation module, battery activated signal imitation generation module, the simulation of network communication fault-signal generate mould
Block is connect by corresponding direct fault location circuit with the control module respectively.
A kind of controlled failure injection device of polymorphic type multichannel, which is characterized in that the network communication module
Ethernet PHY chip composite module is carried including serial communication module and MCU, network communication module realizes parameter setting.
A kind of controlled failure injection device of polymorphic type multichannel, which is characterized in that the direct fault location circuit
The break-make that triode is controlled by using the signal of core processing module transmission controls the logical of relay by the break-make of triode
It is disconnected, and then realize the simulation of circuit breaker, short trouble.
A kind of controlled failure injection device of polymorphic type multichannel, which is characterized in that the core processing module
Main control MCU chip to use STM32F407, work power supply be the 3.3V voltages that provide of power conversion module；The communication module
Using RSS485 communication modes.
The present invention may be implemented to add FCM fault control module, fault simulation generation module in normal signal path module,
To complete direct fault location this key technology.Corresponding simulation is realized using fault control circuit, fault simulation generative circuit
Faulty circuit has carried out polymorphic type, the injection of the controlled failure of multichannel to simulator circuit board, has been detected for fault test set
To the presence of failure, by analyzing testability data, the raising for equipment BIT researchs and testability design provides foundation.
【Description of the drawings】
Fig. 1 normal signal path module composition frame charts
The block diagram of system of Fig. 2 present invention
The operation principle block diagram of Fig. 3 apparatus of the present invention
Fig. 4 simulated fault signal injecting principle block diagrams
Fig. 5 digital signal direct fault location functional block diagrams
Fig. 6 intra-network communication schematic diagrams
Fig. 7 activation signal direct fault location schematic diagrams
Fig. 8 enabling signal direct fault location schematic diagrams
Fig. 9 network communication signals direct fault locations schematic diagram 1
Figure 10 network communication signals direct fault locations schematic diagram 2
Figure 11 power control signal direct fault location schematic diagrams
【Specific implementation mode】
The invention will be further described below in conjunction with the accompanying drawings：
Fig. 1 show the normal signal path module composition frame chart.Semiotic function module include connectivity checks module,
Enabling signal module, battery activated module, network communication module, the connecting interface on bottom plate provide 28 volts for power conversion module
Voltage after being converted by power conversion module, provides 5 volts of operating voltages, for net for enabling signal module and battery activated module
Network communication module and signal control process module provide 3.3 volts of voltages.The main control MCU chip of signal control process module uses
The I/O pin of STM32F407, chip give corresponding normal signal path module and faulty circuit plate to build-in function module assignment, lead to
Cross control logic of the programming realization to board card module.
The block diagram of system of the present invention is as shown in Figure 2.On the basis of normal signal channel module, corresponding event is increased
Hinder generation module, including failure of connectivity signal imitation generation module, startup separator signal imitation generation module, battery activated event
Hinder signal imitation generation module, network communication fault simulation generation module, failure generation module passes through the corresponding interface and positive normal open
Road module connection；Corresponding failure circuit board is connected with direct fault location circuit, is then carried out by FCM fault control module corresponding
Gating, the fault mode that needs are injected on suitable access.
The operation principle block diagram of apparatus of the present invention is as shown in Figure 3.The analogue unit of device is made of analog board, digiboard,
Analog board realizes that the function of the electric interfaces and communication interface of analogsimulation signal, digiboard realize the electrical of analog and digital signal
The function of interface and communication interface, cooperation control device complete the control flow of presumptive test.It is by display and control unit control selections
Normal mode or direct fault location pattern.When the key panel of tester's operation display and control unit, signal can will be controlled from aobvious control
Unit microprocessor exports, and is then transmitted to analogue unit by board intercommunication.After analogue unit is connected to control signal, control
The break-make of direct fault location relay on board, the open circuit conditions of analog circuit in actual use realize direct fault location work(
Can, and be verified in actual use..
Fig. 4 is simulated fault signal injecting principle block diagram.Simulated fault signal injected system includes analog board, display and control unit
And auxiliary unit, analog board are used for analogsimulation equipment function, realize the signals such as connectivity control, the unlock to simulation device
Parsing and feedback, while being uploaded to display and control unit, the analog functuion of preset failure.The analog board includes following mould
Block：
1) core processing module：It is responsible for data and information exchange.
2) connectivity module：Connectivity state controls.
3) key signal acquisition module：Acquisition includes setting means, the signals such as parameter setting driving voltage and unlock.
4) fault-signal simulates generation module：Include that connectivity, working method, parameter are set for simulating possible failure
The failures such as fixed, unlock.
5) other supplementary modules：It is protected including parameter setting feedback module, selftest module, information logging modle and EMC
Circuit, current foldback circuit, inter-board interface circuit, real-time clock (RTC) circuit etc..Stand-by power supply built in RTC, no external power supply
Only by RTC battery powereds in the case of, keep clock circuit normal working hours be not less than 2 years.
Fig. 5 is digital signal direct fault location functional block diagram.Digital signal fault injection system includes digiboard, display and control unit
And auxiliary unit, it realizes to the connectivity control of digital equipment, network state, parameter setting, the letters such as enabling signal, activation signal
Number parsing and feedback, while being uploaded to display and control unit, the simulation of preset failure, procedural information record and the work(such as board self-test
Energy.The digiboard includes following module：
1) core processing module：It is responsible for data and information exchange.
2) connectivity module：Connectivity state controls.
3) ethernet communication module：Parameter setting is carried out for ethernet communication.
4) key signal acquisition module：Acquisition includes the signals such as enabling signal and activation signal.
5) fault-signal simulates generation module：Include connectivity, ether Netcom for the possible failure of simulation numeral equipment
The failures such as letter, equipment self-test, parameter setting, enabling signal, activation signal；
6) other supplementary modules：Including selftest module, information logging modle and EMC protection circuitry, current foldback circuit
Inter-board interface circuit, real-time clock (RTC)
Circuit etc..Stand-by power supply built in RTC, no external power supply only by RTC battery powereds in the case of, keep clock circuit
Normal working hours is not less than 2 years.
Fig. 6 is intra-network communication schematic diagram.Intercommunication uses RS485 communication modes, for equipment display and control unit and
Between analogue unit, while the input communication of normal signal and direct fault location signal may be implemented.485 communication of inside is selected
Special 485 transceiving chips of SP3485, the build-out resistor R66 between transmission line are 2K, to ensure that transceiver communication is reliable and can be same
When reduce transmission power consumption.Meanwhile in the use of chip, equipped with the protection circuit being made of TVS3 and TVS4, TVS3 and TVS4
The two-way TVS pipes of SMBJ10CA are all made of, the Electro Magnetic Compatibility of circuit entirety is improved.
Fig. 7 is activation signal direct fault location schematic diagram.After operation button, intercommunication information is sent out by display and control unit,
Intercommunication uses RS485 communication modes, internal communication information to pass to analog board core processing module, which adopts
With 32-bit microprocessor STM32F407, the communication information of reception is parsed, sends signals to control by RDC CTRL feet
The action of direct fault location relay K6.It is connected when RDC CTRL foot high level, when low level disconnects, to realize the note of failure
Enter.
Fig. 8 is enabling signal direct fault location schematic diagram.Under normal mode, tester operates the key face of display and control unit
Plate, microcontroller control relay K7 are off, so that the signal for being output to external interface is in vacant state, start letter
It number will not provide.When requirements of process enabling signal, tester operates the key panel of display and control unit, make microcontroller control after
Electric appliance K7 is in attracting state, so that the signal for being output to external interface is connected, enabling signal provides.Under direct fault location pattern,
When the key panel of tester's operation display and control unit, selects to test under direct fault location pattern, enabling signal can be simulated at any time
The presence or absence of, achieve the purpose that direct fault location.
Fig. 9 and Figure 10 is network communication signals direct fault location schematic diagram.On the basis of normal network communications, in circuit board
At external interface, the relay K4 and K5 of two two-ways are added, by the FTX TX CTRL feet and FTX RX CTRL of microcontroller
Human hair combing waste goes out signal, while controlling 4 road signal wires of network communication, realizes that normal connect is broken with signal when direct fault location
Line state.The key panel of display and control unit is operated by tester, is selected to test under direct fault location pattern, can be simulated at any time
The break-make of network signal, achievees the purpose that direct fault location.
Figure 11 is power control signal direct fault location schematic diagram.Tester operates the key panel of display and control unit, micro-control
Device processed sends out the break-make of EC POWER signal control relays K6, and may be selected that digiboard and analog board are powered on or powered off
Operation is realized to which the power supply of analog board or digiboard is cut off in realization at any time and then cuts off analog board or digiboard institute is functional
The purpose of direct fault location.
In order to realize that equipment is controlled altogether with cable, all interface circuits are open circuit in equipment unloading.In order to prevent
Occur excessive short circuit current damage equipment control device on signal wire and comprehensive equipment simulator device, signal wire all seal in insurance
Silk.For electric current up to 30A, relay has used Omron high-current relay on digital equipment loaded line.Number in board design
Tin processing is warded off using anti-welding resistance by word equipment supply line.
Claims (5)
1. a kind of controlled failure injection device of polymorphic type multichannel, including normal signal function module, which is characterized in that this dress
Set further includes FCM fault control module, fault simulation generation module；The corresponding access event in the normal signal function module circuit
Barrier simulation generation module, the gating that corresponding failure simulates generation module is controlled by the FCM fault control module；The failure
Control module includes display and control unit and analogue unit, and analogue unit includes analog board and digiboard, and analog board is used for analog signal
Direct fault location function, digiboard be used for digital signal direct fault location function；Analog board and digiboard include communication module,
Core processing module, direct fault location circuit；The push button signalling of the display and control unit passes through after display and control unit microprocessor processes
The communication module is transmitted to core processing module, sends out corresponding control signal after core processing module processing, controls direct fault location
The break-make of direct fault location relay in circuit realizes direct fault location.
2. a kind of controlled failure injection device of polymorphic type multichannel as described in claim 1, which is characterized in that described normal
Semiotic function module includes signal control process module, power conversion module, connectivity checks module, enabling signal module, electricity
Pond active module, network communication module, connecting interface；The fault simulation generation module includes that failure of connectivity simulation generates mould
Block, startup separator signal imitation generation module, battery activated signal imitation generation module, the simulation of network communication fault-signal generate
Module is connect by corresponding direct fault location circuit with the control module respectively.
3. a kind of controlled failure injection device of polymorphic type multichannel as claimed in claim 2, which is characterized in that the network
Communication module includes serial communication module and MCU carries Ethernet PHY chip composite module, and network communication module realizes that parameter is set
It is fixed.
4. a kind of controlled failure injection device of polymorphic type multichannel as described in any claim in claims 1 to 3,
It is characterized in that, the direct fault location circuit controls the break-make of triode by using the signal that core processing module transmits, and passes through
The break-make of the break-make control relay of triode, and then realize the simulation of circuit breaker, short trouble.
5. a kind of controlled failure injection device of polymorphic type multichannel as claimed in claim 4, which is characterized in that the core
It is the 3.3V voltages that power conversion module provides that the main control MCU chip of processing module, which uses STM32F407, work power supply,；It is described
Communication module uses RSS485 communication modes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810111439.XA CN108333987A (en) | 2018-02-05 | 2018-02-05 | A kind of controlled failure injection device of polymorphic type multichannel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810111439.XA CN108333987A (en) | 2018-02-05 | 2018-02-05 | A kind of controlled failure injection device of polymorphic type multichannel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108333987A true CN108333987A (en) | 2018-07-27 |
Family
ID=62928412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810111439.XA Pending CN108333987A (en) | 2018-02-05 | 2018-02-05 | A kind of controlled failure injection device of polymorphic type multichannel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108333987A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110488343A (en) * | 2019-09-03 | 2019-11-22 | 中核核电运行管理有限公司 | The method of data processing board and simulated failure for simulated failure |
| CN111459735A (en) * | 2020-03-17 | 2020-07-28 | 中国第一汽车股份有限公司 | Hardware circuit fault injection test method, device, equipment, medium and system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101821642A (en) * | 2007-10-04 | 2010-09-01 | 泰拉丁公司 | Emulating behavior of legacy test system |
| CN105005015A (en) * | 2015-04-23 | 2015-10-28 | 广西电网有限责任公司电力科学研究院 | Circuit fault simulation system based on hardware circuit fault injection |
| CN204965090U (en) * | 2015-08-31 | 2016-01-13 | 中国人民解放军63908部队 | Integrated multiple fault type's intelligent fault injection system |
| CN205015414U (en) * | 2015-08-31 | 2016-02-03 | 中国人民解放军63908部队 | A general purpose system that is used for electronics testability to verify and evaluate |
| CN106502303A (en) * | 2016-09-22 | 2017-03-15 | 北京龙坤盛达科技有限公司 | A kind of electronic type multi gear voltage parameter initialization system and method |
| CN106990771A (en) * | 2017-01-04 | 2017-07-28 | 中南大学 | Fault filling method and system |
-
2018
- 2018-02-05 CN CN201810111439.XA patent/CN108333987A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101821642A (en) * | 2007-10-04 | 2010-09-01 | 泰拉丁公司 | Emulating behavior of legacy test system |
| CN105005015A (en) * | 2015-04-23 | 2015-10-28 | 广西电网有限责任公司电力科学研究院 | Circuit fault simulation system based on hardware circuit fault injection |
| CN204965090U (en) * | 2015-08-31 | 2016-01-13 | 中国人民解放军63908部队 | Integrated multiple fault type's intelligent fault injection system |
| CN205015414U (en) * | 2015-08-31 | 2016-02-03 | 中国人民解放军63908部队 | A general purpose system that is used for electronics testability to verify and evaluate |
| CN106502303A (en) * | 2016-09-22 | 2017-03-15 | 北京龙坤盛达科技有限公司 | A kind of electronic type multi gear voltage parameter initialization system and method |
| CN106990771A (en) * | 2017-01-04 | 2017-07-28 | 中南大学 | Fault filling method and system |
Non-Patent Citations (1)
| Title |
|---|
| 任占勇: "《航空电子产品预测与健康管理技术》", 31 December 2013, 国防工业出版社 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110488343A (en) * | 2019-09-03 | 2019-11-22 | 中核核电运行管理有限公司 | The method of data processing board and simulated failure for simulated failure |
| CN110488343B (en) * | 2019-09-03 | 2024-06-11 | 中核核电运行管理有限公司 | Data processing board card for simulating faults and fault simulation method |
| CN111459735A (en) * | 2020-03-17 | 2020-07-28 | 中国第一汽车股份有限公司 | Hardware circuit fault injection test method, device, equipment, medium and system |
| WO2021185107A1 (en) * | 2020-03-17 | 2021-09-23 | 中国第一汽车股份有限公司 | Hardware circuit fault injection test method, apparatus, and device, medium and system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106444723B (en) | The test macro and its test method of electronic brake control unit | |
| CN104297623B (en) | Automatic test system for onboard cable integrity | |
| CN109677468A (en) | Train logic control element and logic control method | |
| CN102130669B (en) | Method, system, device and network equipment for detecting state of hot-plug module | |
| CN106527181A (en) | Communication network-based distribution automation system simulation test method | |
| CN103925853A (en) | Carrier rocket ground test system device | |
| CN107678356A (en) | Flexible direct current power transmission system nature imitation experiment device and method based on fpga chip platform | |
| CN103699112B (en) | Based on avionics Autonomous test Authentication devices and the verification method thereof of I/O signal fault simulation | |
| CN103713214A (en) | Intelligent transformer station relay protection closed loop test system | |
| CN207662978U (en) | A kind of voltage-time type feeder automation action logic experimental rig | |
| CN104184208A (en) | Integrated automation information proofreading system of transformer substation | |
| CN108333987A (en) | A kind of controlled failure injection device of polymorphic type multichannel | |
| CN113514726A (en) | Complete machine cable detection system and method | |
| CN202256646U (en) | Analog remote signaling control and measurement device | |
| CN103868564B (en) | On-line water level monitoring method and system for underground high-voltage power tunnel | |
| CN101046793B (en) | Bus signal control method, system, interface single plate and network equipment internal single board | |
| CN111930039A (en) | Fault simulation device, system and method for platform door system | |
| CN104237681A (en) | Digitization relay protection testing device | |
| CN108445286A (en) | A kind of three-phase four-wire system electrical energy meter fault simulator | |
| CN112052593A (en) | Battery operation characteristic and fault simulation operation platform and operation method thereof | |
| CN104753083B (en) | Control system of multi-module photovoltaic grid-connected inverter | |
| CN103403563A (en) | Reverse power supply circuit test system and device | |
| CN107247418B (en) | Dynamic simulation experiment platform device for electric power system | |
| CN109761124A (en) | A kind of multifunctional lift test macro of customized setting | |
| CN207036969U (en) | A kind of prepared auto restart action logic test accessory |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180727 |