CN105137965B - A kind of multichannel Iganition control system detection method and device - Google Patents
A kind of multichannel Iganition control system detection method and device Download PDFInfo
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- CN105137965B CN105137965B CN201510595709.5A CN201510595709A CN105137965B CN 105137965 B CN105137965 B CN 105137965B CN 201510595709 A CN201510595709 A CN 201510595709A CN 105137965 B CN105137965 B CN 105137965B
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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
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Abstract
The invention discloses a kind of multichannel Iganition control system detection method and device, method includes the following steps: S1, single chip control unit obtain after carrying out the enabling signal of self-starting detection key, signal, including delay time setting signal and control sequential setting signal are started switch to 4 groups of electronic type cyclelog outputs；S2, after electronic type cyclelog receives the delay time setting signal and control sequential setting signal, according to signal setting export 12 road ignition signals；The ignition signal that S3, electronic type cyclelog export is sent into ignition voltage detection unit through interface circuit, and ignition voltage detection unit detects ignition signal；S4, testing staff judge the correctness of multichannel Iganition control system output according to the display situation of indicator light.The present invention can fast, accurately detect multichannel Iganition control system；Device volume is small, is convenient for carrying, and is not limited by use condition.
Description
Technical field
The present invention relates to a kind of multichannel Iganition control system detection method and device.
Background technique
The start switch delays time to control and igniting output voltage detection for the electronic type cyclelog newly developed at present do not have
Fairly perfect control and detecting instrument generally uses multiple electronic timing relays, data collector, direct-flow voltage regulation source, company
It connects the multiple devices combined method such as cable and socket to be detected, operating difficulties, use is very inconvenient, and detection efficiency is low, test
It is at high cost, equipment especially is controlled without more product testings during environmental stress screening is tested, in order to guarantee product matter
Amount, needs to develop a kind of electric-control system detection control apparatus.
Summary of the invention
The technical problem to be solved in the present invention is that starting switch for multichannel Iganition control system in the prior art
Be delayed with igniting output voltage detection efficiency is low, accuracy is not up to standard defect, providing one kind can be automatically fast, accurately right
The method and device that multichannel Iganition control system is detected.
The technical solution adopted by the present invention to solve the technical problems is:
The present invention provides a kind of multichannel Iganition control system detection method, comprising the following steps:
After S1, single chip control unit acquisition carry out the enabling signal of self-starting detection key, to 4 groups of electronic type process controls
Device output starts switch signal, including delay time setting signal and control sequential setting signal；
S2, after electronic type cyclelog receives the delay time setting signal and control sequential setting signal, press
Setting according to signal exports 12 road ignition signals；
The ignition signal that S3, electronic type cyclelog export is sent into ignition voltage detection unit, igniting through interface circuit
Voltage detection unit specifically includes the detection process of ignition signal:
S31, ignition signal are sent into the anode of the comparator input terminal of ignition voltage detection unit, pass through comparator input terminal
After the resistance of cathode carries out direct ratio partial pressure, the output end output signal of comparator；
If S32, output signal are less than or equal to 25V, export as low level, transistor is not turned on, and indicator light does not work, and is indicated
Without ignition signal；
If S33, output signal are greater than 25V, export as high level, transistor turns, indicator light is bright, indicates that igniting is believed
Number；
S4, testing staff judge the correctness of multichannel Iganition control system output according to the display situation of indicator light.
The setting method of delay time setting signal and control sequential setting signal in step S1 specifically:
Using single-button mode, long temporally setting button, time 10ms is incremented by, again long temporally setting button, when
Between 10ms successively decrease.
After the discharge delay that the display of indicator light passes through capacitor in step S3, extends it and show the time.
The present invention also provides a kind of multichannel Iganition control system detection devices, comprising:
Single-chip microcontroller starts switch signal, including control sequential signal and delay time signal for being arranged, and to electronic type
Cyclelog exports this and starts switch signal；
Output control circuit is connected with the single-chip microcontroller, described for giving the control signal output of the single-chip microcontroller
The connected input interface circuit of output control circuit；
Ignition voltage detection circuit is connected with the input interface circuit, for detecting the control according to the single-chip microcontroller
The ignition signal of signal input, is as a result shown by LED indicating circuit, and testing staff shows that situation determines output according to it
Correctness.
It further include the voltage regulator circuit, key circuit and digital pipe display circuit being connected with the single-chip microcontroller.
The beneficial effect comprise that: multichannel Iganition control system detection method of the invention passes through single-chip microcontroller
Control unit is configured delay time signal and control sequential signal, is then carried out by ignition voltage detection unit to it
Test, and will test result and shown by indicator light, fast, accurately multichannel Iganition control system can be examined
It surveys；It is detected using modular single-chip computer control system, device volume is small, is convenient for carrying, not by use condition
Limitation；And detected automatically by program completely, workshop assembly crewman can voluntarily detect after assembling equipment, practicability compared with
It is good.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples, in attached drawing:
Fig. 1 is the flow chart of the multichannel Iganition control system detection method of the embodiment of the present invention；
Fig. 2 is the structural schematic diagram of the multichannel Iganition control system detection device of the embodiment of the present invention；
Fig. 3 is the time setting circuit diagram of the multichannel Iganition control system detection device of the embodiment of the present invention；
Fig. 4 is the control output circuit figure of the multichannel Iganition control system detection device of the embodiment of the present invention；
Fig. 5 is the ignition voltage detection comparison circuit of the multichannel Iganition control system detection device of the embodiment of the present invention
Figure；
Fig. 6 is the digital pipe display circuit figure of the multichannel Iganition control system detection device of the embodiment of the present invention；
Fig. 7 is the power supply stabilization circuit figure of the multichannel Iganition control system detection device of the embodiment of the present invention；
Fig. 8 is the SCM program flow chart of the multichannel Iganition control system detection device of the embodiment of the present invention；
1- single-chip microcontroller in figure, 2- output control circuit, 3- input interface circuit, 4- ignition voltage detection circuit.
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 described herein, specific examples are only used to explain the present invention, not
For limiting the present invention.
As shown in Figure 1, multichannel Iganition control system detection method of the invention, comprising the following steps:
After S1, single chip control unit acquisition carry out the enabling signal of self-starting detection key, to 4 groups of electronic type process controls
Device output starts switch signal, including delay time setting signal and control sequential setting signal；The delay time setting signal
With the setting method of control sequential setting signal specifically: use single-button mode, long temporally setting button, the time, 10ms was passed
Increase, again long temporally setting button, the time, 10ms successively decreased.
S2, after electronic type cyclelog receives the delay time setting signal and control sequential setting signal, press
Setting according to signal exports 12 road ignition signals；
The ignition signal that S3, electronic type cyclelog export is sent into ignition voltage detection unit, igniting through interface circuit
Voltage detection unit specifically includes the detection process of ignition signal:
S31, ignition signal are sent into the anode of the comparator input terminal of ignition voltage detection unit, pass through comparator input terminal
After the resistance of cathode carries out direct ratio partial pressure, the output end output signal of comparator；
If S32, output signal are less than or equal to 25V, export as low level, transistor is not turned on, and indicator light does not work, and is indicated
Without ignition signal；
If S33, output signal are greater than 25V, export as high level, transistor turns, indicator light is bright, indicates that igniting is believed
Number；
After the discharge delay that the display of indicator light passes through capacitor, extends it and show the time.
S4, testing staff judge the correctness of multichannel Iganition control system output according to the display situation of indicator light.
As shown in Fig. 2, the multichannel Iganition control system detection device of the embodiment of the present invention is implemented for realizing the present invention
The multichannel Iganition control system detection method of example, comprising:
Single-chip microcontroller 1 starts switch signal, including control sequential signal and delay time signal for being arranged, and to electronics
Formula cyclelog exports this and starts switch signal；
Output control circuit 2 is connected with single-chip microcontroller 1, for the control signal output of single-chip microcontroller 1 to be given output control electricity
The connected input interface circuit 3 in road 2；
Ignition voltage detection circuit 4 is connected with input interface circuit 3, defeated according to the control signal of single-chip microcontroller 1 for detecting
The ignition signal entered, is as a result shown by LED indicating circuit, and testing staff shows that situation determines the correct of output according to it
Property.
Also voltage regulator circuit, key circuit and the digital pipe display circuit being connected with single-chip microcontroller 1.
In another embodiment of the present invention, as shown in Figure 3, Figure 4, time setting and control output circuit use
AT89C52 single-chip processor i/o mouth control technology realizes that timing setting is set and controlled in delay time, and delay time setting uses individual palpation
Key, long-pressing S4, S5 and S6 key are completed, when displayed between meet and need time for being arranged to unclamp key to complete setting, single-chip microcontroller
Automatically it is 0ms that K0 output delay is arranged after electrification reset, and K1 output delay is 20ms, and K2 output delay is 40ms, and K3 output is prolonged
When be 60ms.Control sequential is arranged in long-pressing S3 key, totally 16 kinds of timing, is indicated with number 0 to 15, the work shape of K0 to K3 output
State indicates that " 1 " indicates work with four 2 system numbers, and " 0 " indicates not work, as numeral method digital " 15 " is four two corresponding
System number is " 1111 ", then it represents that K0 to K3 works, and single-chip microcontroller is automatically set as the state after powering on, and shows that digital " 14 " are right
Answering tetrad is " 1110 ", then it represents that K0, K1 and K2 work, K3 do not work, show digital " 13 " corresponding four two into
Number processed be " 1101 ", then it represents that K2 does not work, other all to work, similarly show number " 1 " correspondence " 0001 " then indicate K0, K1 and
K2 does not work, only K3 work.When by S1 detection start key, P1 mouthfuls of single-chip microcontroller are sequentially output one by setting delay time
High level directly drives integrated circuit ULN2803 and controls the work of four group relays, exports four groups of switch starting control signals.
The electrification reset circuit of single-chip microcontroller is made of resistance R1 and capacitor C5, external oscillation circuit, by C3, C4 and Y1 group
At；C1 and C2 forms electric source filter circuit, and output signal control circuit is by four groups of 2JT1-930 relays and external 4 protections two
Pole pipe composition.
As shown in figure 5, ignition voltage detects comparison circuit mainly by devices such as U3 integrated circuit LM339 and Q1 transistors 9013
Part composition, ignition voltage input signal are sent into LM339 comparator input terminal anode through J5；In no ignition voltage input signal,
LM399 inputs cathode and is divided by R10 and R12 direct ratio, and about 25V, LM339 output are low potential, and Q1 transistor is not turned on,
LED light does not work；When the ignition output signal of feeding is greater than 25V voltage, LM339 output is high potential, and Q1 transistor is led
Logical, LED light is bright.D10, C5 and R14 are delay LED display circuit, since the pulse width of ignition input signal is very short, one
As within 300ms, the LED output indicator bright time is very short, after C5 and R14 discharge delay, LED show the time become
It is long, up to 3 seconds or more, if increasing LED shows the time, the capacitance of C10 can be increased or increase the resistance value of R14, the resistance of R14
Value cannot be excessive, should ensure that Q1 transistor is reliably connected.D10 is electric discharge isolation, R10 and R12 resistance is to guarantee that ignition voltage is defeated
Enter the minimum amount of voltage that of signal, the size of resistance value can be changed according to technical requirements.
As shown in fig. 6, display circuit uses dynamic working mode, 8 2K pull-up electricity are connect by 3 integrated charactrons and P0 mouthfuls
Resistance composition, the charactron is 3361BS, direct using P0 mouthfuls and P2 mouthfuls of single-chip microcontroller since the operating current of charactron used is small
Driving, when P0 mouthfuls of high level, P2 mouthfuls are low level numeral method, and when being low level for P0 mouthfuls, charactron is not shown.
As shown in fig. 7, power circuit uses 28v direct current supply, R73 and D26 form 28V voltage indicating circuit, resistance R74
For current limiting safeguard resistor, 28V voltage is sent into the pressure stabilizing of LM7805 integrated circuit through C18 and C19 capacitor filter, then by C16 and
C17 capacitor filtering uses the 5V of offer single-chip microcontroller, it is ensured that single-chip microcontroller timing control is reliable.
As shown in figure 8, software design is the key that this patent design, for the ease of extending and changing, the design of software is adopted
With modular construction, make the logical relation of programming is simpler to be illustrated in this way, software mainly has system initialization module, determines
When module, time setup module, light a fire output control module and dynamic digital tube display module.When detection device powers on system from
Dynamic to reset, K0 ~ K3 delay time initial value is arranged in system automatically after reset, and k0 time initial value is set as 0ms, and the k1 time is set as 50
Ms, the k2 time are set as 100 ms, and the k3 time is set as 180ms, when single-chip microcontroller detects that start button is pressed, immediately by K0 ~
The time output starting control signal of K3 setting, after electronic type cyclelog receives enabling signal, according to the starting of K0 ~ K3
Time determines how output ignition signal, detects through voltage comparator circuit, is shown after meeting the requirements by LED light tube, user
Show that situation determines the correctness of output of products according to LED.
It should be understood that for those of ordinary skills, it can be modified or changed according to the above description,
And all these modifications and variations should all belong to the protection domain of appended claims of the present invention.
Claims (1)
1. a kind of multichannel Iganition control system detection method, which is characterized in that detected and filled by multichannel Iganition control system
Realization is set, which includes:
Single chip control unit (1) starts switch signal for being arranged, including control sequential setting signal and delay time setting
Signal, and export this to electronic type cyclelog and start switch signal；
Output control circuit (2) is connected with the single chip control unit (1), is used for the single chip control unit (1)
Control signal output gives the output control circuit (2) connected input interface circuit (3)；
Ignition voltage detection circuit (4) is connected with the input interface circuit (3), controls for detecting according to the single-chip microcontroller
The ignition signal of the control signal input of unit (1), is as a result shown by LED indicating circuit, testing staff is aobvious according to it
Show that situation determines the correctness of output；
Voltage regulator circuit, key circuit and the digital pipe display circuit being connected with the single chip control unit (1)；
Method includes the following steps:
It is defeated to 4 groups of electronic type cyclelogs after S1, single chip control unit acquisition carry out the enabling signal of self-starting detection key
Signal, including delay time setting signal and control sequential setting signal are started switch out；
S2, after electronic type cyclelog receives the delay time setting signal and control sequential setting signal, according to letter
Number setting export 12 road ignition signals；
The ignition signal that S3, electronic type cyclelog export is sent into ignition voltage detection circuit, igniting through input interface circuit
Voltage detecting circuit specifically includes the detection process of ignition signal:
S31, ignition signal are sent into the anode of the comparator input terminal of ignition voltage detection circuit, pass through comparator input cathode
Resistance carry out direct ratio partial pressure after, the output end output signal of comparator；
If S32, output signal are less than or equal to 25V, export as low level, transistor is not turned on, and indicator light does not work, and indicates no point
Fiery signal；
If S33, output signal are greater than 25V, export as high level, transistor turns, indicator light is bright, indicates ignition signal；
S4, testing staff judge the correctness of multichannel Iganition control system output according to the display situation of LED indicating circuit；
The setting method of delay time setting signal and control sequential setting signal in step S1 specifically:
The setting method of delay time setting signal are as follows:
Delay time setting uses single-button, and long-pressing S4, S5 and S6 key is completed, when displayed between meet and need time for being arranged
It unclamps key and completes setting；Long temporally setting button, time 10ms are incremented by, again long temporally setting button, time 10ms
Successively decrease；
The setting method of control sequential setting signal are as follows:
Control sequential is arranged in long-pressing S3 key, totally 16 kinds of timing, is indicated with number 0 to 15；
After the discharge delay that the display of LED indicating circuit passes through capacitor in step S4, extends it and show the time.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105738228B (en) * | 2016-04-15 | 2018-04-24 | 中国矿业大学(北京) | Experiment loading system and method for study movement crack interaction mechanism |
| CN113093692B (en) * | 2021-03-16 | 2022-03-18 | 上海机电工程研究所 | Automatic testing method and system for ignition control system |
| CN114217599B (en) * | 2021-12-14 | 2023-10-17 | 北京机电工程研究所 | Aircraft ground energy control console |
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