CN108958219A - Securing system for virtual instrument device - Google Patents
Securing system for virtual instrument device Download PDFInfo
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- CN108958219A CN108958219A CN201810699110.XA CN201810699110A CN108958219A CN 108958219 A CN108958219 A CN 108958219A CN 201810699110 A CN201810699110 A CN 201810699110A CN 108958219 A CN108958219 A CN 108958219A
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- 238000001514 detection method Methods 0.000 claims abstract description 29
- 238000006243 chemical reaction Methods 0.000 claims abstract description 16
- 238000004891 communication Methods 0.000 claims description 19
- 239000003990 capacitor Substances 0.000 claims description 15
- 239000013078 crystal Substances 0.000 claims description 4
- 238000007689 inspection Methods 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 230000005611 electricity Effects 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000003111 delayed effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0259—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the response to fault detection
- G05B23/0286—Modifications to the monitored process, e.g. stopping operation or adapting control
-
- 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
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24065—Real time diagnostics
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
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Abstract
The invention discloses a guarantee system for virtual instrument equipment, which comprises a power supply module, a guarantee module, a conversion module, a detection subsystem and virtual instrument equipment, wherein the guarantee module is used for guaranteeing the virtual instrument equipment; the power supply module is connected with the guarantee module and used for providing power for the guarantee module; the security module is connected with the detection subsystem through the conversion module, and the security module and the detection subsystem form a lower computer together; the guarantee module and the detection subsystem are respectively connected with the virtual instrument equipment; the invention provides guarantee for the unattended virtual instrument and equipment through the self-checking of the detection subsystem, the guarantee module and the virtual instrument and the mutual data transmission, so that the unattended virtual instrument and equipment can run stably.
Description
Technical field
The invention belongs to virtual instrument equipment technical fields, and in particular to the safeguards system for virtual instrument equipment.
Background technique
With the continuous development of computer technology, the virtual instrument equipment instrument based on PC system is increasingly used in
Industrial occasions.However, being that the mean free error time is lower in face of the inevasible situation of tradition PC, if only using virtual
Instrument and equipment adds the mode of PC inevitably to will appear, the situations such as system " crash ", memory spilling, blue screen, seemingly-dead.Especially field without
People's system on duty is even more so.
Summary of the invention
The object of the present invention is to provide the safeguards system for virtual instrument equipment, by detection subsystem, assurance module,
The self-test of virtual instrument equipment and the transmitting of mutual data, provide safeguard for unattended virtual instrument equipment, make
It can be with even running.
The technical scheme adopted by the invention is that:
For the safeguards system of virtual instrument equipment, including power module, assurance module, conversion module, detection subsystem
And virtual instrument equipment；
The power module is connected with assurance module, for providing power supply for assurance module；The assurance module is by turning
Mold changing block is connected with detection subsystem and the two collectively forms slave computer；The assurance module and detection subsystem are respectively and virtually
Instrument and equipment connection.
The features of the present invention also characterized in that
There are two the detection subsystem settings, and it is respectively placed in PC machine.
The assurance module includes programmable power supply, controller, communication interface and bus integrator, the programmable power supply,
Controller, communication interface are sequentially connected, and the bus integrator is connect with programmable power supply, controller and communication interface respectively.
The communication interface is RS232.
The conversion module, for communication interface to be converted to USB interface.
The conversion module includes CH341 chip, and the 13rd pin of the CH341 chip and the 14th is respectively by the
Six capacitor C6 and the 7th capacitor C7 ground connection, and is provided with the second crystal oscillator X2 between the 13rd pin and the 14th, the tenth pin and
11st pin connects the third pin and second pin of USB respectively, and the 9th pin is connected by the 8th capacitor C8 and the 12nd pin
Seraglio ground connection is connect, the 28th pin is connect after the parallel connection of the 9th capacitor C9 and the tenth capacitor C10 with the 12nd pin, the
28 pins, the 9th pin and the 12nd pin connect latter termination VCC, the first pin connection of the other end and USB, USB
The 4th pin ground connection.
The slave computer is connect by variable connector with virtual instrument equipment.
The variable connector is noncontacting switch comprising the 9th triode Q9, the emitter of the 9th triode Q9
It is connected all the way through the 40th resistance R40 with bipolarity optocoupler PS2850, another way is through the 41st resistance R41 and the 18th pole
Pipe D18 is connect with bipolarity optocoupler PS2850, the 39th resistance R39 of mono- tunnel bipolarity optocoupler PS2850 output, another way
It is connect after the parallel connection of the 17th diode D17 and the 42nd resistance R42 with IRF3250.
Be provided with indicating circuit in the detection subsystem, for show virtual instrument equipment whether normal work.
The indicating circuit includes the display unit and state cell of connection, and the display unit includes first resistor R1,
First pin and second pin of the first resistor R1 respectively through first diode D1 and the second diode D2 and chip P1 connect
It connects, the state cell includes second resistance R2, and the second resistance R2 is respectively through third diode D3 and the 4th diode D4
It is connect with the 5th pin of chip P1 and the 6th pin.
Compared with prior art, the present invention in use, by detection subsystem, assurance module, virtual instrument equipment from
Inspection and the transmitting of mutual data, provide safeguard for unattended virtual instrument equipment, allow to even running.
Detailed description of the invention
Fig. 1 is the system block diagram for the safeguards system that the embodiment of the present invention 1 is provided for virtual instrument equipment；
Fig. 2 is the system block diagram for the safeguards system that the embodiment of the present invention 2 is provided for virtual instrument equipment；
Fig. 3 is that the embodiment of the present invention 2 provides the circuit diagram of conversion module in the safeguards system for virtual instrument equipment；
Fig. 4 is that the embodiment of the present invention 2 provides the circuit diagram of variable connector in the safeguards system for virtual instrument equipment；
Fig. 5 is that the embodiment of the present invention 2 provides the circuit diagram of indicating circuit in the safeguards system for virtual instrument equipment.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
The embodiment of the present invention 1 provide be used for virtual instrument equipment safeguards system, as shown in Figure 1, include power module 1,
Assurance module 2, conversion module 3, detection subsystem 4 and virtual instrument equipment 5；
Power module 1 and assurance module 2 connect, for providing power supply for assurance module 2；Assurance module 2 passes through modulus of conversion
Block 3 is with the connection of detection subsystem 4 and the two collectively forms slave computer；Assurance module 2 and detection subsystem 4 respectively with virtual instrument
Equipment 5 connects；
In this way, assurance module 2 and detection subsystem 4 collectively form slave computer, after the initialization self-test of assurance module 2 is normal
It is powered, waits computer and 5 self-starting of virtual instrument equipment, and interact formula carrying out shake communication with detection subsystem 4；Into first
In the stage, whether 5 program of operational monitoring virtual instrument equipment that host computer has a servo software to wait for entirely exits, and is connect by USB
Mouth issues soft heart immediate skip, detects subsystem 4 and detects hardware clock and the normal system normal instructions that then send of heartbeat instruction to guarantor
Barrier module 2,5 system initialization of virtual instrument equipment are normal；Into second stage, assurance module 2 passes through conversion module 3 and detection
Subsystem 4 is attached, and waits for software every the end the PC servo of inquiry in 3 seconds, computer and 5 software of virtual instrument equipment whether work
Make normally, tentative reparation to be carried out if operation irregularity, is continued if repairing successfully, reparation is unsuccessful, alarms, at this time
Promoter systems and be delayed wait 10S after restart original system, into PXE mode；Three phases carry out mirror image for system
It repairs, enters standby mode after the completion of repairing, the computer is switched to when another set of subsystem fault and enters working condition, it is above
Process circulation executes.
The embodiment of the present invention 2 provides the safeguards system for being used for virtual instrument equipment, on the basis of embodiment 1, such as Fig. 2 institute
Show, there are two the detection settings of subsystem 4, and it is respectively placed in PC machine.
Assurance module 2 includes programmable power supply 21, controller 22, communication interface 23 and bus integrator 24, programmable power supply
21, controller 22, communication interface 23 are sequentially connected, and bus integrator 24 connects with programmable power supply 21, controller 22 and communication respectively
Mouth 23 connects.
Communication interface 23 is RS232, conversion module 3, for communication interface 23 to be converted to USB interface.
As shown in figure 3, conversion module 3 includes CH341 chip, the 13rd pin of CH341 chip and the 14th leads to respectively
The 6th capacitor C6 and the 7th capacitor C7 ground connection is crossed, and is provided with the second crystal oscillator X2 between the 13rd pin and the 14th, the tenth draws
Foot and the 11st pin connect the third pin and second pin of USB respectively, and the 9th pin is drawn by the 8th capacitor C8 with the 12nd
Foot connects seraglio ground connection, and the 28th pin connects after the parallel connection of the 9th capacitor C9 and the tenth capacitor C10 with the 12nd pin
It connects, the 28th pin, the 9th pin and the 12nd pin connect latter termination VCC, the first pin company of the other end and USB
It connects, the 4th pin ground connection of USB；
CH341 chip is the switching chip an of usb bus, provides asynchronous serial port, printing port, parallel port by usb bus
And common 2 and 4 wire isosynchronous serial interface, under asynchronous serial port mode, CH341 chip provide serial ports send it is enabled,
Serial ports, which receives, just waits interactive rate controlled signal and common MODEM cue, asynchronous for extending for computer
Common serial equipment is directly upgraded to usb bus in this system by serial ports；
In addition, CH341 chip only can be driven with the second crystal oscillator X2, the conversion of USB and serial communication is completely in the chip
It completes in portion.
As shown in figure 4, slave computer is connect by variable connector 6 with virtual instrument equipment 5, variable connector 6 is contactless opens
It closes comprising the 9th triode Q9, the emitter of the 9th triode Q9 is all the way through the 40th resistance R40 and bipolarity optocoupler
PS2850 connection, another way is connect through the 41st resistance R41 and the 18th diode D18 with bipolarity optocoupler PS2850, double
The 39th resistance R39 of mono- tunnel polarity optocoupler PS2850 output, another way is through the 17th diode D17 and the 42nd resistance
It is connect after the parallel connection of R42 with IRF3250；
The 9th triode Q9 of the circuit is enough at prime digital switch circuit, middle part bipolarity optocoupler PS2805 constitute photoelectricity every
Be controlled circuit from, rear class NMOS, under normal operating conditions triode, optocoupler PS2805 and NMOS tube all in off state,
The circuit conducting driving bipolarity optocoupler PS2805 work when the ground level positively biased of the 9th triode Q9 when work, at this time metal-oxide-semiconductor
Gate leve is that high level handles on state, and then circuit is connected；Since optocoupler uses the isolation effect with up to 2500Vr.m.s
Fruit, the PS2805 optocoupler for the high switching speed that rise time tr is 3 μ s, fall time tf is 5 μ s, this speed cooperate nanosecond
IRF3205MOS pipe auxiliary language farad capacitor accumulation of energy characteristic, system can be made to seamlessly transit.
Unattended virtual instrument equipment uses direct current supply, on the one hand eliminates that exchange turns direct current, direct current delivers exchange
Transform part, on the other hand use due to use contactless switching circuit, the reliability of system can be greatly improved,
Performance can preferably be provided safeguard.
As shown in figure 5, indicating circuit is provided in detection subsystem 4, for the whether normal of virtual instrument equipment 5 to be shown
Work, indicating circuit include the display unit and state cell of connection, and display unit includes first resistor R1, and first resistor R1 divides
It is not connect through first diode D1 and the second diode D2 with the first pin and second pin of chip P1, state cell includes the
Two resistance R2, second resistance R2 draw through third diode D3 and the 4th diode D4 with the 5th pin of chip P1 and the 6th respectively
Foot connection；
Indicating circuit is powered using 5V, uses two two-color diodes.Wherein first diode D1 and the second diode D2
It is defined as " heartbeat " HT display instruction, another group of third diode D3 and the 4th diode D4 are defined as RUN state instruction；When being
When system works normally, RUN is shown in green, goes out two seconds, realizes when detecting subsystem 4 and detecting virtual instrument 5 failure of equipment
To the reboot operation of the system, the actual test system wherein needs about 30 seconds to be after normal load virtual instrument device software
40 seconds or so, the time is set as 60S there are certain redundancy, HT is communication instruction, and normal condition flashes, otherwise display is red
Color.
Working principle: assurance module 2 and detection subsystem 4 collectively form slave computer, and the software at the end PC is host computer, i.e.,
PC1 or PC2, assurance module 2 initialize self-test, when self-test normally after be powered to bus integrator 24, wait computer and virtual
5 self-starting of instrument and equipment, and formula carrying out shake communication is interacted with detection subsystem 4；Into the first stage, host computer has a servo
Whether 5 program of operational monitoring virtual instrument equipment that software is waited for entirely exits, and issues soft heart immediate skip, inspection by USB interface
It surveys the detection hardware clock of subsystem 4 and heartbeat instruction normally then sends system normal instructions to assurance module 2, virtual instrument equipment
5 system initializations are normal；Into second stage, assurance module 2 is attached by USB interface and detection subsystem 4, every 3
The end a PC servo of second inquiry waits for software, and whether computer and 5 software of virtual instrument equipment are working properly, if operation irregularity
Tentative reparation is carried out, is continued if repairing successfully, reparation is unsuccessful, alarms, and is started immediately by programmable power supply 21 at this time
Subsystem and be delayed wait 10S after restart original system, into PXE mode；Three phases carry out mirror image for system and repair
It is multiple, enter standby mode after the completion of repairing, the computer is switched to when another set of subsystem fault and enters working condition, the above mistake
Cheng Xunhuan is executed.
Using the above scheme, compared with prior art, the present invention is in use, pass through detection subsystem, assurance module, virtual
The self-test of instrument and equipment and the transmitting of mutual data, provide safeguard for unattended virtual instrument equipment, make it can
With even running.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by anyone skilled in the art,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with scope of protection of the claims
Subject to.
Claims (10)
1. a kind of safeguards system for virtual instrument equipment, which is characterized in that including power module (1), assurance module (2),
Conversion module (3), detection subsystem (4) and virtual instrument equipment (5)；
The power module (1) and assurance module (2) connection, for providing power supply for assurance module (2)；The assurance module
(2) it is connected by conversion module (3) and detection subsystem (4) and the two collectively forms slave computer；The assurance module (2) and inspection
Subsystem (4) are surveyed to connect with virtual instrument equipment (5) respectively.
2. the safeguards system according to claim 1 for virtual instrument equipment, which is characterized in that the detection subsystem
(4) there are two setting, and it is respectively placed in PC machine.
3. the safeguards system according to claim 2 for virtual instrument equipment, which is characterized in that the assurance module
It (2) include programmable power supply (21), controller (22), communication interface (23) and bus integrator (24), the programmable power supply
(21), controller (22), communication interface (23) are sequentially connected, the bus integrator (24) respectively with programmable power supply (21), control
Device (22) processed and communication interface (23) connection.
4. the safeguards system according to claim 3 for virtual instrument equipment, which is characterized in that the communication interface
It (23) is RS232.
5. the safeguards system according to claim 4 for virtual instrument equipment, which is characterized in that the conversion module
(3), for communication interface (23) to be converted to USB interface.
6. the safeguards system according to claim 5 for virtual instrument equipment, which is characterized in that the conversion module
It (3) include CH341 chip, the 13rd pin of the CH341 chip and the 14th passes through the electricity of the 6th capacitor C6 and the 7th respectively
Hold C7 ground connection, and be provided with the second crystal oscillator X2 between the 13rd pin and the 14th, the tenth pin and the 11st pin connect respectively
The third pin and second pin of USB, the 9th pin connect seraglio with the 12nd pin by the 8th capacitor C8 and are grounded, and the 20th
Eight pins are connect after the parallel connection of the 9th capacitor C9 and the tenth capacitor C10 with the 12nd pin, and the 28th pin, the 9th draw
Foot and the 12nd pin connect latter termination VCC, the first pin connection of the other end and USB, the 4th pin ground connection of USB.
7. the safeguards system of virtual instrument equipment is used for described in -6 according to claim 1, which is characterized in that the slave computer is logical
Variable connector (6) is crossed to connect with virtual instrument equipment (5).
8. the safeguards system according to claim 7 for virtual instrument equipment, which is characterized in that the variable connector
It (6) is noncontacting switch comprising the 9th triode Q9, the emitter of the 9th triode Q9 is all the way through the 40th resistance
R40 is connected with bipolarity optocoupler PS2850, and another way is through the 41st resistance R41 and the 18th diode D18 and bipolarity light
Coupling PS2850 connection, the 39th resistance R39 of mono- tunnel bipolarity optocoupler PS2850 output, another way is through the 17th diode
It is connect after the parallel connection of D17 and the 42nd resistance R42 with IRF3250.
9. the safeguards system according to claim 8 for virtual instrument equipment, which is characterized in that the detection subsystem
(4) in be provided with indicating circuit, for show virtual instrument equipment (5) whether normal work.
10. the safeguards system according to claim 9 for virtual instrument equipment, which is characterized in that the indicating circuit
Display unit and state cell including connection, the display unit include first resistor R1, and the first resistor R1 is passed through respectively
First diode D1 and the second diode D2 are connect with the first pin and second pin of chip P1, and the state cell includes the
Two resistance R2, the second resistance R2 the 5th pin through third diode D3 and the 4th diode D4 and chip P1 and the respectively
The connection of six pins.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810699110.XA CN108958219A (en) | 2018-06-29 | 2018-06-29 | Securing system for virtual instrument device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810699110.XA CN108958219A (en) | 2018-06-29 | 2018-06-29 | Securing system for virtual instrument device |
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| Publication Number | Publication Date |
|---|---|
| CN108958219A true CN108958219A (en) | 2018-12-07 |
Family
ID=64484599
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810699110.XA Pending CN108958219A (en) | 2018-06-29 | 2018-06-29 | Securing system for virtual instrument device |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203086741U (en) * | 2013-01-31 | 2013-07-24 | 吉林大学 | Experimental equipment monitoring and managing system based on GSM and WIFI network communication technology |
| CN203869725U (en) * | 2014-04-01 | 2014-10-08 | 江汉大学 | Monitoring apparatus of instrumentation system |
| CN104217141A (en) * | 2014-09-04 | 2014-12-17 | 东莞理工学院 | Reinforced virtual instrument measuring software metrology support method and device |
| WO2016056035A1 (en) * | 2014-10-06 | 2016-04-14 | Nec Corporation | Management system for virtual machine failure detection and recovery |
| CN206575219U (en) * | 2017-01-20 | 2017-10-20 | 武汉地震科学仪器研究院有限公司 | A kind of unattended station seismic instrument intelligent power management system |
| CN208607526U (en) * | 2018-06-29 | 2019-03-15 | 西安航空学院 | Guarantee system for virtual instrument equipment |
-
2018
- 2018-06-29 CN CN201810699110.XA patent/CN108958219A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203086741U (en) * | 2013-01-31 | 2013-07-24 | 吉林大学 | Experimental equipment monitoring and managing system based on GSM and WIFI network communication technology |
| CN203869725U (en) * | 2014-04-01 | 2014-10-08 | 江汉大学 | Monitoring apparatus of instrumentation system |
| CN104217141A (en) * | 2014-09-04 | 2014-12-17 | 东莞理工学院 | Reinforced virtual instrument measuring software metrology support method and device |
| WO2016056035A1 (en) * | 2014-10-06 | 2016-04-14 | Nec Corporation | Management system for virtual machine failure detection and recovery |
| CN206575219U (en) * | 2017-01-20 | 2017-10-20 | 武汉地震科学仪器研究院有限公司 | A kind of unattended station seismic instrument intelligent power management system |
| CN208607526U (en) * | 2018-06-29 | 2019-03-15 | 西安航空学院 | Guarantee system for virtual instrument equipment |
Non-Patent Citations (2)
| Title |
|---|
| 刘瑞琪: "基于CH341A的USB－RS232/RS485转换器的设计", 《2011 AASRI CONFERENCE ON APPLIED INFORMATION TECHNOLOGY》 * |
| 吴军;: "数控机床RS232接口转USB接口的方法探讨", 科技视界 * |
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