CN105843717A - Interface detection protection circuit for lane controller - Google Patents
Interface detection protection circuit for lane controller Download PDFInfo
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- CN105843717A CN105843717A CN201610205780.2A CN201610205780A CN105843717A CN 105843717 A CN105843717 A CN 105843717A CN 201610205780 A CN201610205780 A CN 201610205780A CN 105843717 A CN105843717 A CN 105843717A
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- photoelectrical coupler
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/22—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing
- G06F11/2294—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing by remote test
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Quality & Reliability (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electronic Switches (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The invention provides an interface detection protection circuit for a lane controller. The interface detection protection circuit comprises a driving circuit and a terminal connected with the driving circuit, wherein the terminal is connected with an outer computer and a test circuit, the test circuit and the outer computer are connected with a selection circuit which is connected with a switching circuit, the switching circuit is connected with an industrial personal computer, the selection circuit selects the test circuit and/or the outer computer to be connected with the switching circuit and controls connection and disconnection of the switching circuit. The interface detection protection circuit can realize reversal automatically when a peripheral has a fault or a computer system crashes, and system running is prevented from being limited.
Description
Technical field
The invention belongs to remote traffic monitoring technical field, protect particularly to a kind of driveway controller interface detection
Protection circuit.
Background technology
At present, monitor technical field at remote traffic, when abnormal condition occurs in field computer operation peripheral hardware,
Maintainer is difficult to determine to be " system " fault？Still " peripheral hardware " fault？Certainly " peripheral hardware fault " also
Including the wiring etc. to peripheral hardware；Owing to test device uses " single-chip microcomputer " to operate, unavoidable existence is " dead
Machine " danger, once occur, the properly functioning of whole system will be affected because of local fault.
Therefore, a kind of driveway controller interface detection protection circuit is needed now badly, it is possible to set outside and break down
Or when computer system crashes, it is automatically obtained upset, it is to avoid system is run limited.
Summary of the invention
The present invention proposes a kind of driveway controller interface detection protection circuit, solves in prior art whole
The problem that long distance control system is paralysed due to local fault.
The technical scheme is that and be achieved in that: car driveway controller interface detection protection circuit, including
Drive circuit and the binding post being connected with drive circuit, described binding post connects outer computer, institute
Stating binding post connection has test circuit, described test circuit and outer computer connection to have selection circuit, institute
Stating selection circuit connection and have on-off circuit, described on-off circuit connects industrial computer, and described selection circuit selects
Test circuit and/or outer computer connect described on-off circuit, and described selection circuit controls described switch electricity
The conducting on road and closedown.
As one preferred embodiment, described binding post is 25 pin binding posts: the first pin arrives
25th pin.
As one preferred embodiment, described on-off circuit includes a monostable gate circuit, described monostable
State gate circuit passes through the first resistance access circuit voltage, and described monostable door connects the 6th crystal oscillator, described list
Stable state gate circuit passes through the 20th electric capacity, the 25th capacity earth end and circuit voltage.
As one preferred embodiment, described selection circuit includes three data selectors: the first data
Selector, the second data selector and the 3rd data selector, the first data selector connects binding post
The 14th pin to the 17th pin；Second data selector connects the 18th pin of binding post to the 21st
Pin；3rd data selector connects the 22nd pin of binding post to the 25th pin.
As one preferred embodiment, described test circuit includes three photoelectrical couplers: the first photoelectricity
Bonder, the second photoelectrical coupler and the 3rd photoelectrical coupler, the first photoelectrical coupler is by the 59th electricity
Resistance, the 60th resistance, the 61st resistance and the 62nd resistance connect the first plug and supply voltage；
Second photoelectrical coupler passes through the 63rd resistance, the 64th resistance, the 65th resistance and the 66th
Resistance connects the second plug and supply voltage；3rd photoelectrical coupler lead to the 67th resistance, the 68th
Resistance, the 69th resistance and the 70th resistance connect the 3rd plug and supply voltage；First photoelectric coupling
Device connects the first data selector, and the second photoelectrical coupler connects the second data selector, the 3rd photoelectric coupling
Device connects the 3rd data selector.
As one preferred embodiment, described first photoelectrical coupler, the second photoelectrical coupler and the 3rd
Photoelectrical coupler is connected to the 13rd diode to second by the 71st resistance to the 82nd resistance
14 diodes.
As one preferred embodiment, described drive circuit includes a three terminal regulator and power isolator,
Be provided with the first crystal oscillator between input and the earth terminal of three terminal regulator, the outfan of three terminal regulator with connect
Being provided with the second crystal oscillator between ground end, the input of three terminal regulator connects supply voltage；Described isolated from power
The 3rd crystal oscillator, the 25th electric capacity and the 31st electric capacity it is provided with, electricity between input and the earth terminal of device
It is provided with the 29th electric capacity and the 4th crystal oscillator, power isolator between outfan and the earth terminal of source isolator
Input connect supply voltage.
As one preferred embodiment, described drive circuit connects indicating circuit, described indicating circuit
Including the first instruction diode between holding with being connected to supply voltage and simulation, the positive pole of the first instruction diode
Connecting supply voltage by the second resistance, negative pole connects simulation ground end；Between simulation ground end and negative voltage power supply
Connecting and have the second instruction diode, being connected between the positive pole of the second instruction diode with simulation ground end has the 3rd electricity
Resistance, negative pole connects negative voltage power supply；It is connected between circuit voltage with earth terminal and has the 3rd instruction diode, the
The positive pole of three instruction diodes connects circuit voltage by the 4th resistance, and negative pole connects earth terminal.
As a kind of preferential embodiment, between described on-off circuit and industrial computer, it is provided with control circuit,
Described control circuit includes that the 4th photoelectrical coupler, the 4th photoelectrical coupler connection have its of four pin connector sockets
In the 3rd contact pin and the 4th contact pin, the first contact pin of four pin connector sockets is by the 4th instruction diode and the
Five resistance connect circuit voltage, and the 5th resistance connects the positive pole of the 4th instruction diode, four pin connector sockets
First contact pin connects circuit voltage also by the 5th instruction diode and the 6th resistance, and the 6th resistance connects five
The positive pole of instruction diode, the second pin of four pin connector sockets connects the emitter stage of the first audion, and the one or three
The base stage of pole pipe connects the 8th resistance, and the colelctor electrode of the first audion connects earth terminal, the 4th photoelectrical coupler
One output head grounding end, the other end connects circuit voltage by the 6th instruction diode and the 7th resistance,
7th resistance connects the positive pole of the 6th instruction diode.
After have employed technique scheme, the invention has the beneficial effects as follows: this circuit had both connected computer input
The driving of output interface, supports that again local microcontroller, for the Test driver of output circuit, works as field computer
When abnormal condition occurs in operation peripheral hardware, maintainer can control peripheral hardware by local operation, to determine is
System fault or peripheral hardware fault, use the logic circuit of alternative, district by also computer system and test system
It is divided into two parts, when needing test, by test Systematic selection part of detecting, thus shuts down computer and be
System part, after test terminates, utilizes on-off circuit, recovers computer control system and controls；Once occur
During deadlock situation, it is automatically obtained upset, is switched to the control of computer system, no matter test the " dead of system
Machine ", or " not reset ", including " there is no grafting CPU ", " cpu chip does not program " etc., the most not
The system that can affect is run.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to enforcement
In example or description of the prior art, the required accompanying drawing used is briefly described, it should be apparent that, describe below
In accompanying drawing be only some embodiments of the present invention, for those of ordinary skill in the art, do not paying
On the premise of going out creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the circuit block diagram of the present invention；
Fig. 2 is the schematic diagram of Fig. 1 middle connecting terminal；
Fig. 3 is the circuit diagram of Fig. 1 breaker in middle circuit；
Fig. 4 is the circuit diagram of selection circuit in Fig. 1；
Fig. 5 is the circuit diagram of drive circuit in Fig. 1；
Fig. 6 is the circuit diagram of indicating circuit in Fig. 1；
Fig. 7 is the circuit diagram testing circuit in Fig. 1；
Fig. 8 is the circuit diagram of control circuit in Fig. 1.
In figure, J1-25 pin binding post；U1-power isolator；U2-three terminal regulator；U3A-is monostable
State gate circuit；U4-the first data selector；U5-the second data selector；U6-the 3rd data selector；U7-
First photoelectrical coupler；U8-the second photoelectrical coupler；U9-the 3rd photoelectrical coupler；U10-the 4th photoelectric coupling
Device；C1-the first crystal oscillator；C2-the second crystal oscillator；C3-the 3rd crystal oscillator；C4-the 4th crystal oscillator；C29-the 29th electric capacity；
C30-the 30th electric capacity；C31-the 31st electric capacity；R1-the first resistance；R2-the second resistance；R3-the 3rd electricity
Resistance；R4-the 4th resistance；R5-the 5th resistance；R6-the 6th resistance；R7-the 7th resistance；R8-the 8th resistance；R59-
59th resistance；R60-the 60th resistance；R61-the 61st resistance；R62-the 62nd resistance；R63-
63rd resistance；R64-the 64th resistance；R65-the 65th resistance；R66-the 66th resistance；
R67-the 67th resistance；R68-the 68th resistance；R69-the 69th resistance；R70-the 70th resistance；
D1-D12-the 13rd diode is to the 24th diode；R71-R82-the 71st resistance is to the 82nd electricity
Resistance；LV1-first indicates diode；LV2-second indicates diode；LV3-the 3rd indicates diode；LV4-
4th instruction diode；LV5-the 5th indicates diode；LV6-the 6th indicates diode；Q1-the first audion.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clearly
Chu, be fully described by, it is clear that described embodiment be only a part of embodiment of the present invention rather than
Whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creation
The every other embodiment obtained under property work premise, broadly falls into the scope of protection of the invention.
As Figure 1-Figure 8, this driveway controller interface detection protection circuit, it is characterised in that include driving
Galvanic electricity road and the binding post being connected with drive circuit, described binding post connects outer computer, described
Binding post connects test circuit, and described test circuit and outer computer connect selection circuit, described
Selection circuit connects on-off circuit, and described on-off circuit connects industrial computer, and described selection circuit selects to survey
Examination circuit and/or outer computer connect described on-off circuit, and described selection circuit controls described on-off circuit
Conducting and closedown.
Concrete, described binding post is that 25 pin binding post the J1: the first pins are to the 25th pin.
Described on-off circuit includes that a monostable gate circuit U3A, described monostable gate circuit U3A are by the first electricity
Resistance R1 accesses circuit voltage, and described monostable door connects the 6th crystal oscillator, and described monostable gate circuit U3A leads to
Cross the 20th electric capacity, the 25th capacity earth end and circuit voltage.
Described selection circuit includes three data selectors: the first data selector U4, the second data selector
U5 and the 3rd data selector U6, the first data selector U4 connect the 14th pin of binding post to the
17 pins；Second data selector U5 connects the 18th pin of binding post to the 21st pin；3rd data
Selector U6 connects the 22nd pin of binding post to the 25th pin.
Described test circuit includes three photoelectrical couplers: the first photoelectrical coupler U7, the second photoelectrical coupler
U8 and the 3rd photoelectrical coupler U9, the first photoelectrical coupler U7 are by the 59th resistance R59, the 60th electricity
Resistance R60, the 61st resistance R61 and the 62nd resistance R62 connect the first plug and supply voltage；The
Two photoelectrical coupler U8 pass through the 63rd resistance R63, the 64th resistance R64, the 65th resistance R65
The second plug and supply voltage is connected with the 66th resistance R66；3rd photoelectrical coupler U9 leads to the 60th
Seven resistance R67, the 68th resistance R68, the 69th resistance R69 and the 70th resistance R70 connect the 3rd
Plug and supply voltage；First photoelectrical coupler U7 connects the first data selector U4, the second photoelectric coupling
Device U8 connects the second data selector U5, the 3rd photoelectrical coupler U9 and connects the 3rd data selector U6.
Described first photoelectrical coupler U7, the second photoelectrical coupler U8 and the 3rd photoelectrical coupler U9 are by the
71 resistance are connected to the 13rd diode to the 24th diode to the 82nd resistance.
Described drive circuit includes a three terminal regulator U2 and power isolator U1, and three terminal regulator U2's is defeated
Enter and be provided with the first crystal oscillator C1 between end and earth terminal, set between outfan and the earth terminal of three terminal regulator U2
Being equipped with the second crystal oscillator C2, the input of three terminal regulator U2 connects supply voltage；Described power isolator U1
Input and earth terminal between be provided with the 3rd crystal oscillator C3, the 30th electric capacity C30 and the 31st electric capacity
The 29th electric capacity C29 and the 4th it is provided with brilliant between outfan and the earth terminal of C31, power isolator U1
Shake C4, and the input of power isolator U1 connects supply voltage.
Described drive circuit connects has indicating circuit, described indicating circuit to include being connected to supply voltage and simulation
First instruction diode LV1 between ground end, the positive pole of the first instruction diode LV1 is by the second resistance R2 even
Connecing supply voltage, negative pole connects simulation ground end；Connect between simulation ground end and negative voltage power supply and have the second instruction
Diode LV2, is connected between the positive pole of the second instruction diode LV2 with simulation ground end and has the 3rd resistance R3,
Negative pole connects negative voltage power supply；It is connected between circuit voltage with earth terminal and has the 3rd instruction diode LV3, the 3rd
The positive pole of instruction diode LV3 connects circuit voltage by the 4th resistance R4, and negative pole connects earth terminal.
Being provided with control circuit between described on-off circuit and industrial computer, described control circuit includes the 4th photoelectricity
Bonder U10, the 4th photoelectrical coupler U10 connect has wherein the 3rd contact pin and the 4th of four pin connector sockets to insert
Pin, the first contact pin of four pin connector sockets connects electricity by the 4th instruction diode LV4 and the 5th resistance R5
Road voltage, the 5th resistance R5 connects the positive pole of the 4th instruction diode LV4, and the first of four pin connector sockets inserts
Pin connects circuit voltage also by the 5th instruction diode LV5 and the 6th resistance R6, and the 6th resistance R6 is even
Connecing the positive pole of five instruction diodes, the second pin of four pin connector sockets connects the emitter stage of the first audion Q1,
The base stage of the first audion Q1 connects the 8th resistance R8, and the colelctor electrode of the first audion Q1 connects earth terminal, the
One output head grounding end of four photoelectrical coupler U10, the other end by the 6th instruction diode LV6 and
7th resistance R7 connects circuit voltage, and the 7th resistance R7 connects the positive pole of the 6th instruction diode LV6.
The operation principle of this driveway controller interface detection protection circuit is: this circuit had both connected computer input
The driving of output interface, supports that again local microcontroller, for the Test driver of output circuit, works as field computer
When abnormal condition occurs in operation peripheral hardware, maintainer can control peripheral hardware by local operation, to determine is
System fault or peripheral hardware fault, use the logic circuit of alternative, district by also computer system and test system
It is divided into two parts, when needing test, by test Systematic selection part of detecting, thus shuts down computer and be
System part, after test terminates, utilizes on-off circuit, recovers computer control system and controls；Once occur
During deadlock situation, it is automatically obtained upset, is switched to the control of computer system, f) no matter tests system
" crash ", or " not reset ", including " there is no grafting CPU ", " cpu chip does not program " etc.,
Run all without affecting system.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all at this
Within bright spirit and principle, any modification, equivalent substitution and improvement etc. made, should be included in this
Within bright protection domain.
Claims (9)
1. driveway controller interface detection protection circuit, it is characterised in that include drive circuit and with
The binding post that drive circuit connects, described binding post connects outer computer, and described binding post connects
Having test circuit, described test circuit and outer computer to connect and have selection circuit, described selection circuit connects
Having an on-off circuit, described on-off circuit connects industrial computer, and described selection circuit selects test circuit and/or outer
Portion's computer connects described on-off circuit, and described selection circuit controls conducting and the closedown of described on-off circuit.
Driveway controller interface the most according to claim 1 detection protection circuit, it is characterised in that institute
State binding post and be 25 pin binding posts: the first pin is to the 25th pin.
Driveway controller interface the most according to claim 2 detection protection circuit, it is characterised in that institute
Stating on-off circuit and include a monostable gate circuit, described monostable gate circuit is by the first resistance access circuit electricity
Pressure, described monostable door connect have the 6th crystal oscillator, described monostable gate circuit by the 20th electric capacity, second
15 capacity earth end and circuit voltages.
Driveway controller interface the most according to claim 3 detection protection circuit, it is characterised in that institute
State selection circuit and include three data selectors: the first data selector, the second data selector and the 3rd
Data selector, the first data selector connects the 14th pin of binding post to the 17th pin；Second data
Selector connects the 18th pin of binding post to the 21st pin；3rd data selector connects binding post
The 22nd pin to the 25th pin.
Driveway controller interface the most according to claim 4 detection protection circuit, it is characterised in that institute
State test circuit and include three photoelectrical couplers: the first photoelectrical coupler, the second photoelectrical coupler and the 3rd light
Electric coupler, the first photoelectrical coupler by the 59th resistance, the 60th resistance, the 61st resistance and
62nd resistance connects the first plug and supply voltage；Second photoelectrical coupler by the 63rd resistance,
64th resistance, the 65th resistance and the 66th resistance connect the second plug and supply voltage；The
Three photoelectrical couplers lead to the 67th resistance, the 68th resistance, the 69th resistance and the 70th resistance even
Connect the 3rd plug and supply voltage；First photoelectrical coupler connects the first data selector, the second smooth thermocouple
Clutch connects the second data selector, and the 3rd photoelectrical coupler connects the 3rd data selector.
Driveway controller interface the most according to claim 5 detection protection circuit, it is characterised in that institute
State the first photoelectrical coupler, the second photoelectrical coupler and the 3rd photoelectrical coupler by the 71st resistance to the
82 resistance are connected to the 13rd diode to the 24th diode.
Driveway controller interface the most according to claim 1 detection protection circuit, it is characterised in that institute
State drive circuit and include a three terminal regulator and power isolator, the input of three terminal regulator and earth terminal it
Between be provided with the first crystal oscillator, be provided with the second crystal oscillator, three ends between outfan and the earth terminal of three terminal regulator
The input of manostat connects supply voltage；It is provided with between input and the earth terminal of described power isolator
3rd crystal oscillator, the 25th electric capacity and the 31st electric capacity, between outfan and the earth terminal of power isolator
Being provided with the 29th electric capacity and the 4th crystal oscillator, the input of power isolator connects supply voltage.
Driveway controller interface the most according to claim 1 detection protection circuit, it is characterised in that institute
Stating drive circuit connection has indicating circuit, described indicating circuit to include being connected to supply voltage and holding it with simulating
Between first instruction diode, first instruction diode positive pole by second resistance connect supply voltage, negative pole
Connect simulation ground end；Connect between simulation ground end and negative voltage power supply and have the second instruction diode, the second instruction
Being connected between the positive pole of diode with simulation ground end and have the 3rd resistance, negative pole connects negative voltage power supply；Circuit electricity
Pressing and have the 3rd instruction diode with being connected between earth terminal, the positive pole of the 3rd instruction diode is by the 4th resistance
Connecting circuit voltage, negative pole connects earth terminal.
Driveway controller interface the most according to claim 1 detection protection circuit, it is characterised in that institute
Stating and be provided with control circuit between on-off circuit and industrial computer, described control circuit includes the 4th photoelectrical coupler,
4th photoelectrical coupler connects wherein the 3rd contact pin and the 4th contact pin having four pin connector sockets, and four pin wiring are inserted
First contact pin of seat connects circuit voltage by the 4th instruction diode and the 5th resistance, and the 5th resistance connects
4th instruction diode positive pole, the first contact pin of four pin connector sockets also by the 5th instruction diode and
6th resistance connects circuit voltage, and the 6th resistance connects the positive pole of five instruction diodes, four pin connector sockets
Second pin connects the emitter stage of the first audion, and the base stage of the first audion connects the 8th resistance, the one or three pole
The colelctor electrode of pipe connects earth terminal, an output head grounding end of the 4th photoelectrical coupler, and the other end passes through the 6th
Instruction diode and the 7th resistance connect circuit voltage, and the 7th resistance connects the positive pole of the 6th instruction diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610205780.2A CN105843717B (en) | 2016-04-05 | 2016-04-05 | Interface detection protection circuit of lane controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610205780.2A CN105843717B (en) | 2016-04-05 | 2016-04-05 | Interface detection protection circuit of lane controller |
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| Publication Number | Publication Date |
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| CN105843717A true CN105843717A (en) | 2016-08-10 |
| CN105843717B CN105843717B (en) | 2023-02-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610205780.2A Active CN105843717B (en) | 2016-04-05 | 2016-04-05 | Interface detection protection circuit of lane controller |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN105843717B (en) | 2023-02-28 |
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Address after: 050004 Hebei province Shijiazhuang City Xinshi North Road, No. 368 Building No. 1 room 219 Applicant after: HEBEI SHANGYUAN INTELLIGENT TECHNOLOGY CO.,LTD. Address before: 050004 Hebei province Shijiazhuang City Xinshi North Road, No. 368 Building No. 1 room 219 Applicant before: HEBEI SHANGYUAN INDUSTRIAL CONTROL CO.,LTD. |
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Inventor after: Feng Fengjiang Inventor after: Zhang Jialong Inventor after: Cheng Xinping Inventor after: Gao Haixiang Inventor after: Bian Yuchang Inventor after: Yang Chunshuo Inventor after: Gong Litian Inventor after: Xiao Feng Inventor after: Gao Juncheng Inventor before: Feng Fengjiang Inventor before: Zhang Jialong Inventor before: Cheng Zhiheng Inventor before: Wang Zhitian |
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Denomination of invention: A Lane Controller Interface Detection and Protection Circuit Effective date of registration: 20230731 Granted publication date: 20230228 Pledgee: Bank of Communications Co.,Ltd. Hebei Branch Pledgor: HEBEI SHANGYUAN INTELLIGENT TECHNOLOGY CO.,LTD. Registration number: Y2023980050543 |
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