CN104866445B - A kind of new interface case - Google Patents
A kind of new interface case Download PDFInfo
- Publication number
- CN104866445B CN104866445B CN201510249617.1A CN201510249617A CN104866445B CN 104866445 B CN104866445 B CN 104866445B CN 201510249617 A CN201510249617 A CN 201510249617A CN 104866445 B CN104866445 B CN 104866445B
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- relay
- signal
- conversion module
- level signal
- new interface
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/382—Information transfer, e.g. on bus using universal interface adapter
- G06F13/385—Information transfer, e.g. on bus using universal interface adapter for adaptation of a particular data processing system to different peripheral devices
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/40—Bus structure
- G06F13/4004—Coupling between buses
- G06F13/4022—Coupling between buses using switching circuits, e.g. switching matrix, connection or expansion network
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/40—Bus structure
- G06F13/4063—Device-to-bus coupling
- G06F13/4068—Electrical coupling
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Mathematical Physics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
A kind of new interface case, it is related to aircraft structure strength stimulus switch technology, Loading Control System peripheral hardware signal is converted in being tested for aircraft structure strength, including babinet (1) and the circuit board (2) being set in babinet (1), babinet (1) is provided with panel (3), panel is provided with slot on (3), slot is connect with the pin of respective terminal on circuit board (2) respectively by conducting wire, and circuit board (2) is integrated with switching signal conversion module and level signal conversion module.New interface case signal input part is connect with control system, and signal output end is connect with measuring system with the decoder of video recording equipment, LED display device.New interface case provided by the invention realize measuring system to testpieces per level-one loaded load under strain data and emergency protection moment strain data accurate measurement and testing ground video recording equipment and LED display device to the real-time display of current loaded load percentage.
Description
Technical field
The present invention relates to aircraft structure strength stimulus switch technologies to use in particular to a kind of new interface case
Loading Control System peripheral hardware signal is converted in aircraft structure strength experiment.
Background technology
In aircraft structure strength experiment, Loading Control System carries out multistage loadings by design load to testpieces.It measures
System needs to measure testpieces per the strain under level-one load, and when emergent unloading occurs for experiment, to unloading wink
Between strain measure.Therefore in the endpoint value moment and emergency protection of Loading Control System load each grade of load of arrival
Carve, Loading Control System needs to provide a trigger signal for measuring system, make measuring system to testpieces strain this moment into
Row measures.In day-to-day test, there are two types of the measuring systems that we use, and a kind of required trigger signal is switching signal, and one
Kind is the level signal of 5V.
In addition to this, it in aircraft structure strength experiment, needs to carry out real-time recording and LED large-size screen monitors to entirely testing process
Curtain real-time display.In video and LED large screens are required to the percentage of the current loaded load of real-time display.Loading Control system
System indicates current load percentage with 8 position digital signals after being loaded into every level-one Loading End point value, it can show 1~
Load percentage in 255 ranges.However used video recording equipment and LED display device can only receive analog signal.Therefore
The load beacon signal that Loading Control System provides has to pass through after decoder carries out digital-to-analog conversion decoding and is transferred to video recording
On LED large-screen display equipments.The digital input signals form that the decoder installed on video recording equipment and LED device receives is
5V level signals.
Existing Loading Control System only provides peripheral hardware the level signal of 12V.Therefore it is directed to the above demand, one need to be designed
The 12V level signals that Loading Control System provides are converted to multichannel 5V level signals and switching signal by a interface box, to meet
The demand of measuring system, video recording equipment and LED display device.
Invention content
It is an object of the invention to solve above-mentioned deficiency in the prior art, provide it is a kind of it is simple and reasonable, can will plus
The level signal of loading system, which is converted to, disclosure satisfy that measuring system, the new interface of video recording system and LED display device demand
Case.
The purpose of the present invention is achieved through the following technical solutions：A kind of new interface case, including babinet and it is set to babinet
Interior circuit board, babinet are provided with panel, are provided with slot on panel, slot by conducting wire respectively with respective terminal on circuit board
Pin connection, circuit board is integrated with switching signal conversion module and level signal conversion module.
Preferably, switching signal conversion module receives level signal and is converted to switching signal, including sequentially connected
Relay, diode, triode, resistance, wherein
Relay is connect with leading-out terminal, and the closure by controlling relay contact realizes the defeated of switching signal with disconnection
Go out；
Diode is connected in parallel on relay coil both ends and is formed into a loop with relay, for disappearing when the electric current for flowing through relay
When mistake, consumes the electromotive force that the coil of relay generates and puncture triode to prevent induced electromotive force excessively high；
Triode, for the electric current in amplifying return circuit to drive relay；
Resistance, with ensure by triode electric current will not excessive and triode can enter saturation region.
In any of the above-described scheme preferably, level signal conversion module receives high volt level signal and is converted to low volt level
Signal, including first resistor, the second resistance of conducting wire connection successively, for dividing, wherein
First resistor, one end connecting wire receive high volt level signal, and the other end is connected with the conducting wire for connecting second resistance；
Second resistance, one end are connected with the conducting wire for connecting first resistor, other end ground connection；
The conducting wire of connection first resistor and second resistance is connect with level signal leading-out terminal.
In any of the above-described scheme preferably, interface box signal input part is connect with control system, signal output end and survey
Amount system shows that the decoder of equipment connects with video recording equipment and lED.
In any of the above-described scheme preferably, the number of circuit on-board switching signal conversion module and level signal conversion module
Amount is formulated according to the measuring apparatus and display device requirement tested.
The advantageous effect of new interface case provided by the present invention is, realizes measuring system and adds per level-one to testpieces
Carry the accurate measurement of strain data and emergency protection moment strain data under load；Realize testing ground video recording equipment and LED
Show real-time display of the equipment to current loaded load percentage；Easy to operate, easy to use, reliability is high.
Description of the drawings
Fig. 1 is the box structure diagram according to a preferred embodiment of the new interface case of invention；
Fig. 2 is the switching signal conversion module circuit diagram of the embodiment illustrated in fig. 1 of new interface case according to the invention；
Fig. 3 is the level signal conversion module circuit diagram of the embodiment illustrated in fig. 1 of new interface case according to the invention.
Fig. 4 is the board structure of circuit schematic diagrames according to the embodiment illustrated in fig. 1 of the new interface case of invention.
Reference numeral：
1- babinets, 2- circuit boards, 3- panels, K1- relays, D1- diodes, Q1- triodes, R1- resistance, R2- first
Resistance, R3- second resistances, A- control systems measure trigger signal input terminal 1, B- control systems measure trigger signal output end
Son 1, C- control systems measure trigger signal input terminal 2, D- control systems measure trigger signal leading-out terminal 2, E- controls system
Load beacon signal of uniting input terminal, F- control system load beacon signals leading-out terminal, each modular circuit signals of I1~I10-
Slot on each modular circuit signal input part of input terminal, O1~O10-, A1~F1- panels corresponding with terminal A-F.
Specific implementation mode
In order to better understand according to the new interface case of the present invention program, below in conjunction with the accompanying drawings to the Novel connecting of the present invention
One preferred embodiment of mouth case is further elaborated explanation.
As Figure 1-Figure 4, the preferred embodiment of new interface case provided by the invention, including babinet 1 and it is set to case
Circuit board 2 in body 1, babinet 1 are provided with panel 3, are provided with slot on panel 3, slot by conducting wire respectively on circuit board 2
The pin of respective terminal connects, and circuit board 2 is integrated with switching signal conversion module and level signal conversion module.Switching signal turns
Mold changing block receives level signal and is simultaneously converted to switching signal, including sequentially connected relay K1, diode D1, triode Q1,
Resistance R1, wherein relay K1 is connect with leading-out terminal, and the closure by controlling the contacts relay K1 is switched with realization is disconnected
The output of signal；Diode D1 is connected in parallel on relay K1 coils both ends and is formed into a loop with relay K1, is used for relay K1 electric currents
The electromotive force that the coil of relay K1 generates is consumed when disappearance；Triode Q1 drives relay for the electric current in amplifying return circuit
Device K1；Resistance R1, for ensure by triode Q1 electric currents will not excessive and triode can enter saturation region.
Level signal conversion module receives high volt level signal and is converted to low volt level signal, including conducting wire connects successively
First resistor R2, second resistance R3, for dividing, wherein first resistor R2, one end connecting wire receive high volt level letter
Number, the other end is connected with the conducting wire for connecting second resistance R3；Second resistance R3, one end connect with the conducting wire for connecting first resistor R2
It connects, other end ground connection；Connection first resistor R2 is connect with the conducting wire of second resistance R3 with level signal leading-out terminal.
New interface case signal input part is connect with control system, signal output end and measuring system and video recording equipment and
LED shows the decoder connection of equipment.In the specific use process, with switching signal conversion module and level signal conversion module
Based on, according to specific experiment device for performing measurements and display device requirement, it is combined.The full machine slow test of aircraft is
Example, the experiment use two sets of measuring systems, and the measurement trigger signal needed for a set of measuring system is switching signal, another set of measurement
Measurement trigger signal needed for system is 5V level signals, and live video equipment and LED large screens also need to load testpieces
The percentage of load carries out real-time display.Circuit diagram is as shown in Figure 4 on circuit board 2.
In the specific use process, the slot and circuit board on the panel 3 of the babinet 1 of new interface case provided by the invention
The connection relation of each module terminals pin is respectively on 2：A1 connected control systems measure trigger signal leading-out terminal；B1 meets measurement system
Trigger signal of uniting input terminal (trigger signal is the measuring system of 5V level signals)；C1 connected control systems measure trigger signal output
Terminal；D1 connects measuring system trigger signal input terminal (measuring system of trigger signal switching signal)；E1 connected control system load
Indicate eight-digit number word signal output end；F1 connects video recording equipment and LED large screen equipment decoder inputs.
The endpoint value for running to every level-one load is set in strength of aircraft experiment, in loading spectrum and emergent unloading occurs
When, it executes and control system measurement trigger signal is set to the action of high level, measuring system receives after trigger signal to currently trying
The strain for testing part measures, and control system is set to low level by trigger signal is measured after 0.5s, until next stage loaded load
After reaching endpoint value, the signal is set to high level again.Meanwhile also setting runs to the endpoint of every level-one load in loading spectrum
When value, current load percentage is exported by 8 position digital signals that load indicates, and decoding is inputed to after interface box is converted
Device becomes analog signal after decoding, and real-time display is on video recording equipment and LED large screen equipment.
Be described in detail above in association with specific embodiments of the present invention, but not be limitation of the present invention, it is every according to
The technical scope of the present invention is belonged to according to any simple modification made to the above embodiment of the technical spirit of the present invention, it is also necessary to
Illustrate, the scope of new interface box technology scheme according to the invention includes the arbitrary combination between each part mentioned above.
Claims (3)
1. a kind of new interface case, including babinet (1) and the circuit board (2) that is set in babinet (1), it is characterised in that：It is described
Babinet (1) is provided with panel (3), is provided with slot on panel (3), slot be located at one end of box house by conducting wire respectively with
Respective terminal connects on circuit board (2), and first signal output end sub-interface A1,5V level signal input terminal is included at least on slot
Interface B1, second signal leading-out terminal interface C1 and switch signal input end interface D1, the circuit board (2) are integrated with switch
Signal conversion module and level signal conversion module, and be connected with each other by terminal pins and above-mentioned interface A1-D1, the switch
Signal conversion module receives level signal and is simultaneously converted to switching signal, including sequentially connected relay (K1), diode (D1),
Triode (Q1), resistance (R1), wherein
Relay (K1), connect with leading-out terminal, and the closure by controlling the contact relay (K1) realizes switching signal with disconnection
Output；
Diode (D1) is connected in parallel on relay (K1) coil both ends and is formed into a loop with relay (K1), for relay (K1) electricity
Stream consumes the electromotive force of relay (K1) coil generation when disappearing, to prevent induced electromotive force excessively high, puncture triode；
Triode (Q1), for the electric current in amplifying return circuit to drive relay (K1)；
Resistance (R1) with ensure by the electric current of triode (Q1) will not excessive and triode can enter saturation region；
The level signal conversion module receives high volt level signal and is converted to low volt level signal, including conducting wire connection successively
First resistor (R2), second resistance (R3), for dividing, wherein
First resistor (R2), one end connecting wire receive high volt level signal, the other end and the conducting wire for connecting second resistance (R3)
Connection；
Second resistance (R3), one end are connected with the conducting wire for connecting first resistor (R2), other end ground connection；
Connection first resistor (R2) is connect with the conducting wire of second resistance (R3) with level signal leading-out terminal.
2. new interface case as described in claim 1, it is characterised in that：The new interface case is connect with decoder, by institute
The signal for stating the output of new interface case is converted to analog signal and is shown on video recording equipment and LED large-size screen monitors.
3. new interface case as claimed in claim 2, it is characterised in that：Circuit board (2) the upper switch signal conversion module
It is formulated according to the demand of the measuring apparatus and display equipment tested with the quantity of level signal conversion module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510249617.1A CN104866445B (en) | 2015-05-15 | 2015-05-15 | A kind of new interface case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510249617.1A CN104866445B (en) | 2015-05-15 | 2015-05-15 | A kind of new interface case |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104866445A CN104866445A (en) | 2015-08-26 |
| CN104866445B true CN104866445B (en) | 2018-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510249617.1A Active CN104866445B (en) | 2015-05-15 | 2015-05-15 | A kind of new interface case |
Country Status (1)
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106791418B (en) * | 2016-12-30 | 2024-02-02 | 农业部南京农业机械化研究所 | The method comprises the following steps of: independent type the method comprises the following steps of: independent type Table system control method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102902336A (en) * | 2011-07-29 | 2013-01-30 | 联想(北京)有限公司 | Mainboard and power supply connecting module and electronic equipment thereof |
| CN104575206A (en) * | 2015-01-15 | 2015-04-29 | 梁璐 | Multi-core single chip microcomputer development experiment box |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100856128B1 (en) * | 2007-02-12 | 2008-09-03 | 삼성전자주식회사 | Level shifter capable of high speed operation and method thereof |
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2015
- 2015-05-15 CN CN201510249617.1A patent/CN104866445B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102902336A (en) * | 2011-07-29 | 2013-01-30 | 联想(北京)有限公司 | Mainboard and power supply connecting module and electronic equipment thereof |
| CN104575206A (en) * | 2015-01-15 | 2015-04-29 | 梁璐 | Multi-core single chip microcomputer development experiment box |
Non-Patent Citations (1)
| Title |
|---|
| 面向煤矿大型机械人员安全探测系统的研究;吴顺伟;《中国优秀硕士学位论文全文数据库》;20050315(第1期);第25-26页 * |
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| CN104866445A (en) | 2015-08-26 |
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