CN105136428A - Motorized zoom lens service life detection jig control circuit and method - Google Patents
Motorized zoom lens service life detection jig control circuit and method Download PDFInfo
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- CN105136428A CN105136428A CN201510603508.5A CN201510603508A CN105136428A CN 105136428 A CN105136428 A CN 105136428A CN 201510603508 A CN201510603508 A CN 201510603508A CN 105136428 A CN105136428 A CN 105136428A
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Abstract
A motorized zoom lens service life detection jig control circuit provided by the present invention comprises a single-chip microcomputer, a first driving module, a second driving module, a burning module, a button module, a power supply module and a filter circuit module. The inputs of the first and second driving modules are connected with the first and second outputs of the single-chip microcomputer respectively, the output of the first driving module is connected with a zoom stepping motor, and the output of the second driving module is connected with a focusing stepping motor. The burning module is connected with an ISP writer interface of the single-chip microcomputer, the button module is connected with the third output of the single-chip microcomputer, and the power supply module is connected with the single-chip microcomputer, a first drive circuit, a second drive circuit and the power supply end of the burning module separately via a filtering module. By the circuit, the parameters can be modified according to the demands of clients, the service life test of a lens can be managed, controlled and tidied effectively, the tedious lens service life test is solved, and the special requirements of the special clients can be satisfied.
Description
Technical field
The present invention relates to a kind of tool, be specifically related to a kind of motorized zoom lens life tests tool.
Background technology
Along with the progress of society and the raising of educational level, the understanding of people to awareness of safety also improves constantly, and also improves along with monitoring consciousness thereupon.The product foremost as monitoring trade of camera lens, summation function also to improve thereupon.In monitoring trade, trigger camera lens can be reached the desirable visual field of client by step motor control zoom, focusing, and can be carried out automatic focus by Focus group, day and night runs Jiao to solve, and high/low temperature is run Jiao and waited the burnt problem of the race caused because of surrounding environment change.People accurately can be controlled to realize remote electric by back-end software, really realize lens zoom function.
But camera lens has certain life-span, the camera lens exceeding serviceable life can not meet monitoring demand, therefore needs to detect the dynamic zoom lens life-span.And due to the application scenario of camera lens or environment for use different, even if so also have different design proposals with money camera lens, the parameter of therefore different its life tests of motor-driven lens also can be different, as run step number, running frequency, cycle index etc.
Summary of the invention
The object of this invention is to provide a kind of motorized zoom lens life tests tool, for the life tests of motorized zoom lens.Can according to customer requirement, change frequency, step number, and cycle index.
The present invention is achieved through the following technical solutions: a kind of motorized zoom lens life tests tool control circuit, is characterized in that: comprise single-chip microcomputer, the first driver module, the second driver module, burning module, key-press module, power module and filter circuit module; The input of described first driver module, the second driver module connects the first output, second output of single-chip microcomputer respectively; The output of described first driver module connects zoom stepper motor; The output of described second driver module connects focusing stepper motor; Described burning module connects SCM ISP cd-rom recorder interface; Described key-press module connects the 3rd output of single-chip microcomputer; Described power module connects the feeder ear of single-chip microcomputer, the first driving circuit, the second driving circuit and burning module respectively through filtration module.
In an embodiment of the present invention, described single-chip microcomputer is STC15F204EA.
In an embodiment of the present invention, described first driving circuit, the second driving circuit are L293D chip.
In an embodiment of the present invention, described key-press module comprises the first to the 5th button.
In an embodiment of the present invention, described filter circuit module is made up of 4 filter capacitors.
The present invention also provides a kind of control method based on above-mentioned motorized zoom lens life tests tool control circuit, it is characterized in that: comprise the following steps: step S1: carry out initialization to single-chip microcomputer; Step S2: press switch of the power supply module, when there being power supply to input, push button module, and single-chip microcomputer, by the folding of identification address, exports pulse command, to control turning to and speed of motor to driver module; Step S3: by improving the speed carrying out control step motor by changing pulsating wave dutycycle; Carrying out turning to of control step motor by the sequencing of gating pulse sequential, focusing on stepper motor and zoom stepper motor realization focusing zoom by changing; Step S4: repeatedly circulation step S3 is until camera lens reaches serviceable life.
In an embodiment of the present invention, described step S2 also comprises following concrete steps: by the first button switching focusing stepper motor and zoom stepper motor steps; The frequency of the second to the 5th button is set to 50hz, 100hz, 125hz, 150hz, 200hz respectively, makes focusing stepper motor and zoom stepper motor do life test at different frequencies by the second to the 5th button.
Compared with prior art, the present invention has the following advantages: this tool easily and effectively, and according to customer demand, can be changed parameter, can carry out effective management and control and arrangement to the life test of camera lens.Solve the triviality of camera lens life test, and the particular/special requirement of particular client.
Accompanying drawing explanation
fig. 1for principle frame of the present invention
figure.
fig. 2for STC15F204EA circuit
figure.
fig. 3for one embodiment of the invention L293D circuit
figure.
fig. 4for one embodiment of the invention ISP cd-rom recorder interface circuit
figure.
fig. 5for one embodiment of the invention power module circuitry
figure.
fig. 6for one embodiment of the invention key-press module circuit
figure.
fig. 7for one embodiment of the invention filtration module circuit
figure.
Embodiment
Below in conjunction with
accompanying drawingthe present invention will be further described with specific embodiment.
A kind of motorized zoom lens life tests tool control circuit, comprises single-chip microcomputer, the first driver module, the second driver module, burning module, key-press module, power module and filter circuit module; The input of described first driver module, the second driver module connects the first output, second output of single-chip microcomputer respectively; The output of described first driver module connects zoom stepper motor; The output of described second driver module connects focusing stepper motor; Described burning module connects SCM ISP cd-rom recorder interface; Described key-press module connects the 3rd output of single-chip microcomputer; Described power module connects the feeder ear of single-chip microcomputer, the first driving circuit, the second driving circuit and burning module respectively through filtration module.Circuit theory
figuresee
fig. 1.
In one embodiment of this invention, described single-chip microcomputer is STC15F204EA.Physical circuit principle
figuresee
fig. 2.STC15F204EA single-chip microcomputer is that the ultralow valency A/D of a new generation that macrocrystalline science and technology is released changes single-chip microcomputer single-chip microcomputer, 1 clock/machine cycle, at a high speed, highly reliable, 8 10, tunnel high-speed a/d conversions, inner high precision R/C clock, ± 1% temperature is waftd, and thoroughly save outside expensive crystal oscillator, 5MHz ~ 35MHz wide region can be arranged.
In one embodiment of this invention, described first driving circuit, the second driving circuit are L293D chip.Physical circuit
figuresee
fig. 3.L293D has four output terminals, then can control a stepper motor, motor-driven lens usually has zoom and focuses on two driving stepper motor, and therefore need 2 pieces of L293D chip drives L293D to provide bi-directional drive electric current up to 600 milliamperes, voltage can meet most stepper motor from 4.5V to 36V.The present embodiment have employed such connected mode and drives Focus group and Zoom group two motors: E1, E2 connect control Enable Pin, controls the stall of motor; IN1-IN4 connects the output terminal of single-chip microcomputer, for controlling turning to of motor.L293D tetra-times high electric current H bridge driver, compatible all TTL inputs.Each output is plug-type driving circuit, reaches Lin Yuan with Darlington triode and puppet.Enable 1,2EN driver and 3,4EN driver.When enable be input as high level time, relevant driver is activated and is in active state with their output, and at the homophase of its input end.When enable be input as low, these drivers disabled its export close, at high impedance status.When the input of suitable data, the reversible driver of H bridge that the form one of often pair of driver is complete is applicable to solenoid valve or motor application.
Can realize greater functionality for making single-chip microcomputer and also need a cd-rom recorder interface, some are simple, necessary burning program enters single-chip microcomputer, ISP cd-rom recorder interface circuit
figuresee
fig. 4.
In an embodiment of the present invention, power module carries 5V power supply to single-chip microcomputer, the first driving circuit, the second driving circuit and burning module, the physical circuit of power module
figuresee
fig. 5.
In one embodiment of this invention, described key-press module comprises 5 buttons.Physical circuit
figuresee
fig. 6.
In one embodiment of this invention, described filter circuit module is made up of 4 filter capacitors.Physical circuit
figuresee
fig. 7.
The present invention also provides a kind of control method based on above-mentioned motorized zoom lens life tests tool control circuit, comprises the following steps: step S1: carry out initialization to single-chip microcomputer; Step S2: press switch of the power supply module, when there being power supply to input, push button module, and single-chip microcomputer, by the folding of identification address, exports pulse command, to control turning to and speed of motor to driver module; Step S3: by improving the speed carrying out control step motor by changing pulsating wave dutycycle; Carrying out turning to of control step motor by the sequencing of gating pulse sequential, focusing on stepper motor and zoom stepper motor realization focusing zoom by changing; Step S4: repeatedly circulation step S3 is until camera lens reaches serviceable life.
In an embodiment of the present invention, described step S2 also comprises following concrete steps: by the first button switching focusing stepper motor and zoom stepper motor steps; The frequency of the second to the 5th button is set to 50hz, 100hz, 125hz, 150hz, 200hz respectively, makes focusing stepper motor and zoom stepper motor do life test at different frequencies by the second to the 5th button.
Above-mentioned control method can adopt C language programming realization and single-chip microcomputer is entered in burning, the modular method for designing of this Program Appliance, each subroutine, as the function and the process that realize each several part, has called the partial design such as PWM pulse-width controlled, time delay and direction of motor rotation control by the continuous subroutine of master routine.
Mcu resource distributes:
sbita0=P1^2;//houzuA+
sbita1=P1^3;//houzuA-
sbita2=P1^4;//qianzuA+
sbita3=P1^5;//qianzuA-
sbitb0=P3^5;//qianzuB+
sbitb1=P3^6;//qianzuB-
sbitb2=P1^0;//houzuB+
sbitb3=P1^1;//houzuB-
sbity1=P1^7;//
sbity2=P0^0;//
sbity3=P0^1;//
sbity4=P3^2;//
sbity5=P3^3;//
sbity6=P3^4;//
pwm pulse controls: adopt timer 0 to produce Interruption to the output of control P1.0-P1.5 and P3.5-P3.6 thus generation PWM ripple in the design.Interrupt routine is as follows:
voidInitTimer0(void)
{TMOD|=0x01;
TH0=0x0FF;//50us
TL0=0x0D2;
EA=1;
ET0=0;
TR0=0;
TCount=0;
}
voidTimer0_ISR(void)interrupt1
{TH0=0x0FF;
TL0=0x0D2;
TCount++;}
voidDelay_us(intt)
{unsignedinttt=0;
ET0=1;
TR0=1;
tt=t/50;
while(TCount<=tt)
{};
ET0=0;
TR0=0;
TCount=0;
}
focus group and Zoom group turn to and speed subroutine: by changing dutycycle, realize the speeds control of motor; By the sequencing of gating pulse sequential, control turning to of motor, to reach the focusing zoom of Focus and Zoom.
Focus group:
voidqianzusteprun(bitdirectn,intspeed)
{
qianzuspeedlevel=speed;
qianzuturn=directn;
switch(qianstep_index)
{
case1:qianzuStep1;break;
case2:qianzuStep2;break;
case3:qianzuStep3;break;
case4:qianzuStep4;break;
}
Delay_us(qianzuspeedlevel);
if(qianzuturn==0)
{
qianstep_index++;
if(qianstep_index>4)
qianstep_index=1;
}
else
{
qianstep_index--;
if(qianstep_index<1)
qianstep_index=4;
}
}
/*****************************
// front group of stepper motor movement function
Input parameter is step-length delay time 1000 is 1ms.
******************************/
voidqianzurun(bitstepdirection,intspeedlevel,intstep)
{intstepspeed;
stepspeed=speedlevel;
for(i=0;i<step;i++)
{qianzusteprun(stepdirection,stepspeed);
}
qianzuStop;
}
Zoom group:
voidhouzusteprun(bitdirectn,intspeed)
{houzuspeedlevel=speed;
houzuturn=directn;
switch(houstep_index)
{
case1:houzuStep1;break;
case2:houzuStep2;break;
case3:houzuStep3;break;
case4:houzuStep4;break;
}
Delay_us(houzuspeedlevel);
if(houzuturn==0)
{
houstep_index++;
if(houstep_index>4)
houstep_index=1;
}
else
{houstep_index--;
if(houstep_index<1)
houstep_index=4;
}
}
voidhouzurun(bitstepdirection,intspeedlevel,intstep)
{intstepspeed;
stepspeed=speedlevel;
for(i=0;i<step;i++)
{
houzusteprun(stepdirection,stepspeed);
}houzuStop;}
principal function Focus group life tests, k represents cycle index; B and c represents the step number of rotating.
if(y1==0){for(k=0;k<1000;k++)
{if(m==0){
for(b=0;b<100;b++){
qianzurun(lensin,5000,1);}m=1;
}if(m==1){for(c=0;c<100;c++){
qianzurun(lensout,5000,1);}m=0;qianzuStop;delay_50ms(200);
}if(y2==0){break;}if(y3==0){break;}if(y4==0){break;}
}qianzuStop;}
In sum; above-listed preferred embodiment provided by the invention; the object, technical solutions and advantages of the present invention are further described; be understood that; the foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all; any amendment of doing, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. a motorized zoom lens life tests tool control circuit, is characterized in that: comprise single-chip microcomputer, the first driver module, the second driver module, burning module, key-press module, power module and filter circuit module; The input of described first driver module, the second driver module connects the first output, second output of single-chip microcomputer respectively; The output of described first driver module connects zoom stepper motor; The output of described second driver module connects focusing stepper motor; Described burning module connects SCM ISP cd-rom recorder interface; Described key-press module connects the 3rd output of single-chip microcomputer; Described power module connects the feeder ear of single-chip microcomputer, the first driving circuit, the second driving circuit and burning module respectively through filtration module.
2. motorized zoom lens life tests tool control circuit according to claim 1, is characterized in that: described single-chip microcomputer is STC15F204EA.
3. motorized zoom lens life tests tool control circuit according to claim 1, is characterized in that: described first driving circuit, the second driving circuit are L293D chip.
4. motorized zoom lens life tests tool control circuit according to claim 1, is characterized in that: described key-press module comprises the first to the 5th button.
5. motorized zoom lens life tests tool control circuit according to claim 1, is characterized in that: described filter circuit module is made up of 4 filter capacitors.
6., based on the control method of the motorized zoom lens life tests tool control circuit described in claim 1-5, it is characterized in that: comprise the following steps:
Step S1: initialization is carried out to single-chip microcomputer;
Step S2: press switch of the power supply module, when there being power supply to input, push button module, and single-chip microcomputer, by the folding of identification address, exports pulse command, to control turning to and speed of motor to driver module;
Step S3: by improving the speed carrying out control step motor by changing pulsating wave dutycycle; Carrying out turning to of control step motor by the sequencing of gating pulse sequential, focusing on stepper motor and zoom stepper motor realization focusing zoom by changing;
Step S4: repeatedly circulation step S3 is until camera lens reaches serviceable life.
7. motorized zoom lens life tests according to claim 6 controls control method, it is characterized in that: step S2 also comprises following concrete steps: by the first button switching focusing stepper motor and zoom stepper motor steps; The frequency of the second to the 5th button is set to 50hz, 100hz, 125hz, 150hz, 200hz respectively, makes focusing stepper motor and zoom stepper motor do life test at different frequencies by the second to the 5th button.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510603508.5A CN105136428B (en) | 2015-09-21 | 2015-09-21 | Motorized zoom lenses life tests tool control circuit and method |
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|---|---|---|---|
| CN201510603508.5A CN105136428B (en) | 2015-09-21 | 2015-09-21 | Motorized zoom lenses life tests tool control circuit and method |
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| Publication Number | Publication Date |
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| CN105136428A true CN105136428A (en) | 2015-12-09 |
| CN105136428B CN105136428B (en) | 2018-02-16 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105487196A (en) * | 2016-01-29 | 2016-04-13 | 福建福光股份有限公司 | Drive control box for production line to check phase of zoom lens and control method thereof |
| CN108168846A (en) * | 2017-12-11 | 2018-06-15 | 福建福光股份有限公司 | Burnt jig and its application method are run for testing motorized zoom lens conversion angle |
| CN108536057A (en) * | 2018-03-26 | 2018-09-14 | 福建福光股份有限公司 | The life tests control circuit of P-iris |
| CN110296815A (en) * | 2019-07-02 | 2019-10-01 | 舜宇光学(中山)有限公司 | Detection device and detection method for electromotive focusing camera lens |
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| CN105487196A (en) * | 2016-01-29 | 2016-04-13 | 福建福光股份有限公司 | Drive control box for production line to check phase of zoom lens and control method thereof |
| CN108168846A (en) * | 2017-12-11 | 2018-06-15 | 福建福光股份有限公司 | Burnt jig and its application method are run for testing motorized zoom lens conversion angle |
| CN108536057A (en) * | 2018-03-26 | 2018-09-14 | 福建福光股份有限公司 | The life tests control circuit of P-iris |
| CN110296815A (en) * | 2019-07-02 | 2019-10-01 | 舜宇光学(中山)有限公司 | Detection device and detection method for electromotive focusing camera lens |
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|---|---|
| CN105136428B (en) | 2018-02-16 |
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