CN110442167A - A kind of temperature control system and its control method in pulse laser seeds source - Google Patents
A kind of temperature control system and its control method in pulse laser seeds source Download PDFInfo
- Publication number
- CN110442167A CN110442167A CN201910546926.3A CN201910546926A CN110442167A CN 110442167 A CN110442167 A CN 110442167A CN 201910546926 A CN201910546926 A CN 201910546926A CN 110442167 A CN110442167 A CN 110442167A
- Authority
- CN
- China
- Prior art keywords
- temperature
- fuzzy
- control
- pulse laser
- controller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Semiconductor Lasers (AREA)
Abstract
The invention discloses the temperature control systems and its control method in a kind of pulse laser seeds source, including providing the power supply module, fuzzy controller and laser diode of power supply for whole device；The fuzzy controller includes fuzzy controller and PID controller；The present invention realizes a kind of economy by using the temperature control system that fuzzy algorithmic approach is combined with PID control, effective and stable pulse laser seeds source temperature control method, therefore the temperature change control in pulse laser seeds source can be realized under lower power consumption, so that it is guaranteed that pulse laser seeds source power stablizes output, temperature control precision of the present invention is high, and efficiency greatly improves, and control system can be realized data communication, the processing functions such as data processing and system control, with high degree of automation, speed is fast, measurement efficiency is high, error is small, the advantages that easy to operate.
Description
Technical field
The present invention relates to the temperature control systems and its control in technical field of temperature control more particularly to a kind of pulse laser seeds source
Method processed.
Background technique
With the rapid development of information technology, semiconductor laser has been widely used for fiber optic communication, Fibre Optical Sensor
With the fields such as laser radar, have broad application prospects；And temperature be influence laser performance index principal element it
One, when the temperature of laser increases, output wavelength is gradually drifted about to long wave length direction, meanwhile, temperature controlled precision also shadow
The line width and power of laser are rung, therefore, it is necessary to which noise spectra of semiconductor lasers uses suitable temperature control technology, to guarantee
Semiconductor laser or system can work normally.
Application No. is 200710045711.0 patents of invention, and the drive of thermoelectric cooler is devised using bridge-drive chip
Dynamic circuit realizes the temperature control of semiconductor laser；Application No. is 201410480407.9 patent application, using favour this
The temperature detection amplifying circuit of energization bridge and Design of Amplifiers, realizes the control of semiconductor laser temperature, still, these
The temperature collection circuit of invention is using analog circuit, therefore temperature collection circuit is relatively complicated, mainly due to temperature
What degree Acquisition Circuit utilized is caused by bridge circuit, while being controlled without high-precision algorithm, so that in temperature control process
In will appear temperature fluctuation phenomenon, cause laser temperature change, cause laser export wavelength, line width and power all will go out
Existing wave phenomenon, affects for its subsequent system.
PID control is one of the temperature control strategy using classical control theory to grow up earliest, due to its algorithm
Simply, robustness is good and high reliablity, is widely used in industrial stokehold；However PID control generally require understand by
The function characteristic of control system can just be controlled effectively, very complicated for those, nonlinear system it when needing to spend too many
Between be fitted.
And the fuzzy control of increased popularity in recent years, skill is controlled as one of most widely used intelligent temperature
Art has robustness good, requires no knowledge about the mathematical models of control target and object, is suitable for large time delay and non-linear
The advantages that time-varying system, but be easy because control rule it is coarse due to cause steady-state error；So for semiconductor pulse laser kind
Source temperature is also extremely difficult to satisfied result using simple fuzzy control method.
Summary of the invention
It is an object of the invention to be directed to the deficiencies in the prior art, a kind of temperature control in pulse laser seeds source is provided
System and its control method realize a kind of economical, effective by using the temperature control system that fuzzy operation is combined with PID control
And stable pulse laser seeds source temperature control scheme, it can realize that quick temperature change controls under lower power consumption；It adopts
With temperature sensor feedback temperature signal, On-line accoun is realized using fuzzy operation, is realized to pulse laser seeds source temperature
Quick, accurate control, the fast response time of temperature control system improves the stability of temperature control system.
To achieve the above object, the technical scheme adopted by the invention is that:
A kind of temperature control system in pulse laser seeds source, including providing power supply module, the fuzzy-adaptation PID control of power supply for whole device
Device and laser diode；The fuzzy controller includes fuzzy controller and PID controller, on the fuzzy controller
It is connected with keyboard, display module and temperature sensor, the fuzzy controller is connect with TEC driving circuit one end, and TEC drives
The dynamic circuit other end connects TEC temperature control chip, and TEC temperature control chip is pasted onto the one side of heat-conducting plate using silica gel, led
The another side of hot plate silica gel pastes laser diode, and the sensor in temperature sensor system closely connects heat-conducting plate.
Preferably, the fuzzy controller includes defuzzification interface, rule base, database, inference machine and ambiguity solution interface.
Preferably, the temperature information parameter for the laser diode that the fuzzy controller is measured according to temperature sensor
And deviation e and deviation variation rate ec is relatively calculated in corresponding parameter preset, and is blurred, is established by fuzzy controller
Database and rule base, fuzzy reasoning and de-fuzzy processing, obtain the correction value of pid control parameter, then by PID controller control
Make each execution equipment.
Preferably, the fuzzy controller is also connect with alarm system.
Preferably, the heat-conducting plate is aluminium sheet or red copper.
Preferably, the TEC driving circuit includes driving chip L298N, power supply and several diodes, the driving chip
The pin of the 1st, 8 and 15 ground connection, the 4th connect power supply with 9 pins, and the 5th connects fuzzy controller with 7 pins, and the 2nd pin leads to
Diode D1 connection power module is crossed, while the 2nd pin is grounded by diode D2, the 3rd pin passes through diode D4 connection electricity
Source module, while the 3rd pin is grounded by diode D3, the 2nd and 3 pins are connected respectively to the TEC temperature control chip
Anode and cathode.
The present invention also provides a kind of control methods of the temperature control system in pulse laser seeds source, including determine simultaneously predetermined pulse
Laser seed source parameter obtains and compares calculating and parameters revision and exports control, the specific steps are as follows:
S1, determination and predetermined pulse laser seed source parameter: determining temperature parameter to be controlled is preset in by fuzzy by keyboard
In controller；
S2, obtain and compare calculating: measuring the temperature information parameter of laser diode by temperature sensor, then with it is corresponding
It presets temperature parameter to be controlled and deviation e and deviation variation rate ec is relatively calculated；
S3, parameters revision simultaneously export control: obscuring using deviation e and deviation variation rate ec as the input of fuzzy controller
Change, and establish rule base and database based on a large amount of empirical datas, then obtains PID temperature control by fuzzy reasoning and de-fuzzy
The correction value of parameter, and be input in PID controller, then each work for executing equipment is controlled by PID controller；The execution is set
Standby includes TEC driving circuit, TEC temperature control chip.
It preferably, further include verification step；The temperature information parameter of temperature sensor real-time monitoring laser diode, works as survey
When the temperature information parameter of the laser diode obtained is not equal to parameter preset, above steps is repeated.
Preferably, control mathematical model is established by control algolithm, and is implanted into PID controller；It is obtained according to experimental verification
The control data point reuse control mathematical model of PID controller day part；Control mathematical model can be PID according to preset temperature parameter
Controller matches corresponding day part control instruction.
Compared with prior art, the beneficial effects of the present invention are:
(1) pulse laser seeds source of the present invention realizes a kind of warp using the temperature control system that fuzzy operation is combined with PID control
Ji, effective and stable temperature control scheme can realize the temperature change control in pulse laser seeds source under lower power consumption,
So that it is guaranteed that pulse laser seeds source power stablizes output, control precision is high, and efficiency greatly improves, and control system energy
Enough realize the processing functions such as data communication, data processing and system control, high degree of automation, the fast measurement efficiency of speed is high, accidentally
Difference is small, easy to operate.
(2) present invention passes through the temperature control function in digital circuit pulse laser seeds source, greatly reduces temperature
The complexity of control device, since pulse laser seeds source is very sensitive to temperature change, temperature control precision requires ratio
Relatively stringent, high-precision control requirement is not achieved in traditional PID control technology, and the present invention is controlled by using fuzzy operation and PID
It makes the temprature control method combined to control when temperature error is larger using fuzzy algorithmic approach, to fast implement the drop of temperature
It is low；When temperature error enters the fine tuning stage, using pid control algorithm, to reduce the overshoot of system and to realize temperature control system
Stability contorting, the method for the present invention has the advantages that fast response time, overshoot are smaller, stability is high.
(3) temperature sensor feedback temperature signal is used, On-line accoun is realized using fuzzy operation, is realized to temperature control box
Quick, the accurate control of temperature, the fast response time of temperature control system improve the stability of temperature control system.
Detailed description of the invention
Fig. 1 is that a kind of system of the temperature control system in pulse laser seeds source of the present invention connects block diagram；
Fig. 2 is TEC drive circuit schematic diagram in the present invention；
Fig. 3 is temperature sensor system schematic diagram in the present invention；
Fig. 4 is the working principle diagram of fuzzy controller of the present invention；
Fig. 5 is the control system algorithm routine flow chart of fuzzy controller of the present invention；
Fig. 6 is the fuzzy control rule table in the embodiment of the present invention；
Fig. 7 is the control algolithm flow chart of fuzzy controller in embodiment；
Fig. 8 is the control algolithm flow chart of PID controller in embodiment；
Fig. 9 is the temperature control datagram that the embodiment of the present invention obtains.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiments, to the present invention
It is further elaborated；It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention；Unless stated otherwise, the present invention uses reagent, method and apparatus is the art conventional reagents, method
And equipment.
The present invention is described in further detail below through specific implementation examples and in conjunction with the accompanying drawings.
Embodiment 1
As shown in Figure 1, a kind of temperature control system in pulse laser seeds source, including power module, fuzzy controller, TEC driving
Circuit, TEC temperature control chip, laser diode, heat-conducting plate, temperature sensor, display module, Keyboard Control and alarm mould
Block, the fuzzy controller include fuzzy controller and PID controller, and TEC drive is connected on the fuzzy controller
Dynamic circuit, temperature sensor system, display module, Keyboard Control and alarm module, TEC driving circuit one end connect fuzzy
Controller, the other end connect TEC temperature control chip, and TEC temperature control chip is pasted onto the one side of heat-conducting plate using silica gel, led
The another side of hot plate silica gel pastes laser diode, and the sensor in temperature sensor closely connects heat-conducting plate, temperature sensing
The device other end connects fuzzy controller, and power module is whole system power supply.
Specifically, the fuzzy controller includes defuzzification interface, rule base, database, inference machine and ambiguity solution interface.
In the temperature control process of pulse laser seeds source, laser that the fuzzy controller is measured according to temperature sensor
Deviation e and deviation variation rate ec is relatively calculated in the temperature information parameter of diode and corresponding parameter preset, and by obscuring
Controller is blurred, establishes database and rule base, fuzzy reasoning and de-fuzzy processing, and pid control parameter is obtained
Correction value, then each execution equipment is controlled by PID controller；The execution equipment includes TEC driving circuit, TEC temperature control core
Piece.
Wherein, what power module was selected be it is green raise YB1732A D.C. regulated power supply, what TEC temperature control chip was selected is
Semiconductor chilling plate TEC1-12706, what heat-conducting plate was selected is aluminium sheet.
Specifically, L298N is SGS as shown in Fig. 2, TEC driving circuit includes driving chip L298N and 4 diodes
The product of (Tongbiao Standard Technology Service Co., Ltd) company is 15 foot Multiwatt encapsulation, and internal includes 4 channel logics
Driving circuit, includes the high voltage of two H bridges, high current is enjoyed a double blessing bridge driver, receives standard TTL logic level signal, can drive
Dynamic 46V, 2A motor below, the pin of the 1st, 8 and 15 ground connection of driving chip L298N, the 4th connects power supply with 9 pins, and the 5th and 7
Pin connects fuzzy controller, and the 2nd pin is by diode D1 connection power supply, while the 2nd pin is connect by diode D2
Ground, the 3rd pin is by diode D4 connection power supply, while the 3rd pin is grounded by diode D3, and the 2nd and 3 pins are separately connected
To the anode and cathode of the TEC temperature control chip.
As shown in figure 3, temperature sensor includes R1(10K ohm of temperature sensor DS18B20, power supply and resistance),
DS18B20 digital temperature sensor the measurement of 9-12 Celsius temperatures is provided and also have one triggered by low and high level it is programmable
The not warning function that changes due to power supply disappears, its temperature-measuring range are -55~+125 DEG C, the 1st of temperature sensor DS18B20 the
Pin ground connection, the 2nd pin connect fuzzy controller, and the 3rd pin connects power supply, and the 2nd pin is drawn by resistance R1 connection the 3rd
Foot.
Based on a kind of above-mentioned control method of the temperature control system in pulse laser seeds source, including determine simultaneously predetermined pulse laser
Seed source parameter obtains and compares calculating and parameters revision and exports control, the specific steps are as follows:
S1, determination and predetermined pulse laser seed source parameter: determining temperature parameter to be controlled is preset in by fuzzy by keyboard
In controller；
S2, obtain and compare calculating: measuring the temperature information parameter of laser diode by temperature sensor, then with it is corresponding
It presets temperature parameter to be controlled and deviation e and deviation variation rate ec is relatively calculated；
S3, parameters revision simultaneously export control: obscuring using deviation e and deviation variation rate ec as the input of fuzzy controller
Change, and establish rule base and database based on a large amount of empirical datas, then obtains PID temperature control by fuzzy reasoning and de-fuzzy
The correction value of parameter, and be input in PID controller, then each work for executing equipment is controlled by PID controller；The execution is set
Standby includes TEC driving circuit, TEC temperature control chip.
S4, verification step；The temperature information parameter of temperature sensor real-time monitoring laser diode, when the laser two measured
When the temperature information parameter of pole pipe is not equal to predetermined pulse laser seed source temperature parameter, above steps is repeated.
On the basis of the above, the control method of the temperature control system in the pulse laser seeds source further includes being calculated by control
Method establishes control mathematical model, and is implanted into PID controller；The control data of PID controller day part are obtained according to experimental verification
Adjust control mathematical model；Control mathematical model can be that PID controller matches corresponding day part control according to preset temperature parameter
System instruction.
It is illustrated in figure 4 the working principle diagram of fuzzy controller, it is by switching switch single fuzzy controller
Compound fuzzy controller is constituted with single PID controller, the given parameters of system are desired temperature r in figure, system
Controlled parameter is measured temperature y(t), fuzzy controller be determined according to error e (t) using which kind of control algolithm into
Row control: when error is when a wide range of interior (for example 10 ~ 100% maximum temperature difference values), the sound of system is improved using fuzzy controller
Answer speed；When error (corresponds to 0 ~ 10% maximum temperature difference value) in a small range, then system is eliminated using PID controller
Steady-state error.The amount of switched of the two plays an on-off action, is realized by software, referred to as " switching switch e0", in startup stage, i.e.,
E(t) > e0, change-over switch makes system quick start under the action of fuzzy controller；Into fine tuning stage, i.e. e(t) < e0, turn
Changing switch makes system eliminate error under the action of PID controller, thus can be single fuzzy controller and single
PID controller constitutes compound fuzzy controller, takes e in the present embodiment0It is the 10% of maximum temperature difference value, i.e., 20 × 10%=2.
The control system algorithm routine of fuzzy controller is system to timer T0Interrupt response program, it is main to appoint
Business is the temperature difference e(k obtained according to calculation processing) size FUZZY ALGORITHMS FOR CONTROL and pid control algorithm are selected, flow
Journey figure is as shown in figure 5, wherein timer T0Determine temperature sampling frequency, e0It is the switching threshold values of fuzzy control and PID control, this
E is taken in embodiment0=2。
Fuzzy controller, should using 16 MC9S12DG128 single-chip microcontrollers of Freescal company as core in the present invention
MC9S12DG128 single-chip microcontroller is internally integrated the independent PWM controller of 16 A/D converters and 8 tunnels on 8 tunnels, can be effectively
Simplify the hardware configuration of system and be easy to extend, and support fuzzy command, realize fuzzy operation program with can be convenient, obscures
Controller is made of two inputs and an output variable, and input variable is the deviation e and deviation variation rate ec of temperature respectively, partially
Poor e value is NB, NS, O, PS, PB, and deviation variation rate ec value is NB, NS, O, PS, PB, and output variable is PID controller
Weight U is exported, its value is O, PS, PM, PB, and the fuzzy reasoning table of PID output weight U is shown in Fig. 6.
As shown in fig. 7, the control algolithm in fuzzy controller is realized that it includes two parts by program: first is that off-line calculation
Fuzzy control table is stored in the program storage of fuzzy controller single-chip microcontroller by fuzzy polling list；Second is that in real-time control
In the process, fuzzy controller is according to the deviation e(k of a certain moment desired temperature and measured temperature) and difference variation rate ec
(k) size directly finds output quantity compared with the data being stored in fuzzy controller scm table after being blurred reasoning,
The adjusting of pulse laser seeds source temperature is used further to after precision.
PID controller subroutine flow chart is as shown in figure 8, when temperature deviation e(k) value is less than 2 DEG C, and system is from Fuzzy Control
Algorithm changeover processed eliminates static error to pid control algorithm, and wherein A, B, C are respectively three control parameters of PID controller,
It emulates to obtain its size by SIMULINK, and is stored in the piece of PID controller single-chip microcontroller in ROM；P1.1 controls TEC driving
The driving direction of circuit, △ u(k) indicate the temperature variation of kth time temperature sampling moment calculated TEC driving circuit.
As shown in figure 9, upon start pulse laser seeds source temperature be 27 DEG C, the temperature set be 14 DEG C when, utilize
The temperature control system of invention carries out temperature control, the pass of the temperature and time in pulse laser seeds source to pulse laser seeds source
System is as shown in figure 9, from fig. 9, it can be seen that the regulating time of control pulse laser seeds source temperature is about 30s, system non-overshoot
Amount；The error of system is ± 0.05 DEG C.
The above, only of the invention illustrates embodiment, not to the present invention in any form with substantial limitation,
It should be pointed out that for those skilled in the art, under the premise of not departing from the method for the present invention, that makes several changes
It also should be regarded as protection scope of the present invention into supplement；All those skilled in the art, do not depart from spirit of that invention and
In the case where range, using the equivalent variations of a little change, modification and differentiation that disclosed above technology contents are made, it is
Equivalent embodiment of the invention；Meanwhile any equivalent variations that all substantial technologicals according to the present invention do above-described embodiment
Change, modification and differentiation, still fall within protection scope of the present invention.
Claims (9)
1. a kind of temperature control system in pulse laser seeds source, which is characterized in that including providing the power supply mould of power supply for whole device
Block, fuzzy controller and laser diode；The fuzzy controller includes fuzzy controller and PID controller, described
Keyboard, display module and temperature sensor, the fuzzy controller and TEC driving circuit are connected on fuzzy controller
One end connection, the TEC driving circuit other end connect TEC temperature control chip, and TEC temperature control chip is pasted onto using silica gel leads
The another side of the one side of hot plate, heat-conducting plate pastes laser diode with silica gel, and the sensor in temperature sensor system closely connects
Connect heat-conducting plate.
2. a kind of temperature control system in pulse laser seeds source according to claim 1, which is characterized in that the fuzzy control
Device includes defuzzification interface, rule base, database, inference machine and ambiguity solution interface.
3. a kind of temperature control system in pulse laser seeds source according to claim 1, which is characterized in that the fuzzy
The temperature information parameter for the laser diode that controller is measured according to temperature sensor calculates compared with corresponding parameter preset
Deviate e and deviation variation rate ec, and be blurred by fuzzy controller, establish database and rule base, fuzzy reasoning and
De-fuzzy processing, obtains the correction value of pid control parameter, then control each execution equipment by PID controller.
4. a kind of temperature control system in pulse laser seeds source according to claim 1, which is characterized in that the fuzzy
Controller is also connect with alarm system.
5. a kind of temperature control system in pulse laser seeds source according to claim 1, which is characterized in that the heat-conducting plate is
Aluminium sheet or red copper.
6. a kind of temperature control system in pulse laser seeds source according to claim 1, which is characterized in that the TEC driving
Circuit includes driving chip L298N, power supply and several diodes, and the pin of the 1st, 8 and 15 of the driving chip is grounded, and the 4th and 9
Pin connects power supply, and the 5th connects fuzzy controller with 7 pins, and the 2nd pin is by diode D1 connection power module, simultaneously
2nd pin is grounded by diode D2, and the 3rd pin is by diode D4 connection power module, while the 3rd pin passes through diode
D3 ground connection, the 2nd and 3 pins are connected respectively to the anode and cathode of the TEC temperature control chip.
7. a kind of control method of the temperature control system in pulse laser seeds source, which is characterized in that including determining, simultaneously predetermined pulse swashs
Light seed source parameter obtains and compares calculating and parameters revision and exports control, the specific steps are as follows:
S1, determination and predetermined pulse laser seed source parameter: determining temperature parameter to be controlled is preset in by fuzzy by keyboard
In controller；
S2, obtain and compare calculating: measuring the temperature information parameter of laser diode by temperature sensor, then with it is corresponding
It presets temperature parameter to be controlled and deviation e and deviation variation rate ec is relatively calculated；
S3, parameters revision simultaneously export control: obscuring using deviation e and deviation variation rate ec as the input of fuzzy controller
Change, and establish rule base and database based on a large amount of empirical datas, then obtains PID temperature control by fuzzy reasoning and de-fuzzy
The correction value of parameter, and be input in PID controller, then each work for executing equipment is controlled by PID controller；The execution is set
Standby includes TEC driving circuit, TEC temperature control chip.
8. a kind of control method of the temperature control system in pulse laser seeds source according to claim 7, which is characterized in that also
Including verification step；The temperature information parameter of temperature sensor real-time monitoring laser diode, when the laser diode measured
When temperature information parameter is not equal to parameter preset, above steps is repeated.
9. a kind of control method of the temperature control system in pulse laser seeds source according to claim 7, which is characterized in that logical
It crosses control algolithm and establishes control mathematical model, and be implanted into PID controller；PID controller day part is obtained according to experimental verification
Control data point reuse control mathematical model；Control mathematical model can be that PID controller matching is corresponding according to preset temperature parameter
Day part control instruction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910546926.3A CN110442167A (en) | 2019-09-03 | 2019-09-03 | A kind of temperature control system and its control method in pulse laser seeds source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910546926.3A CN110442167A (en) | 2019-09-03 | 2019-09-03 | A kind of temperature control system and its control method in pulse laser seeds source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110442167A true CN110442167A (en) | 2019-11-12 |
Family
ID=68428959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910546926.3A Pending CN110442167A (en) | 2019-09-03 | 2019-09-03 | A kind of temperature control system and its control method in pulse laser seeds source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110442167A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112394638A (en) * | 2020-11-16 | 2021-02-23 | 上海冷森光电科技有限公司 | PID fuzzy control adaptive laser power stabilizing technology |
| WO2024179443A1 (en) * | 2023-02-28 | 2024-09-06 | 四川思创激光科技有限公司 | Laser welding machine temperature control method, system and apparatus based on fuzzy control |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105223977A (en) * | 2015-09-15 | 2016-01-06 | 盐城工学院 | A kind of semiconductor laser temperature control device based on fuzzy control and control method |
-
2019
- 2019-09-03 CN CN201910546926.3A patent/CN110442167A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105223977A (en) * | 2015-09-15 | 2016-01-06 | 盐城工学院 | A kind of semiconductor laser temperature control device based on fuzzy control and control method |
Non-Patent Citations (1)
| Title |
|---|
| 嘉红霞等: "《港口智能控制》", 30 April 2017 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112394638A (en) * | 2020-11-16 | 2021-02-23 | 上海冷森光电科技有限公司 | PID fuzzy control adaptive laser power stabilizing technology |
| WO2024179443A1 (en) * | 2023-02-28 | 2024-09-06 | 四川思创激光科技有限公司 | Laser welding machine temperature control method, system and apparatus based on fuzzy control |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105223977B (en) | A kind of control method of the semiconductor laser temperature control device based on fuzzy control | |
| CN110442167A (en) | A kind of temperature control system and its control method in pulse laser seeds source | |
| CN110429466A (en) | A kind of high-power semiconductor laser real-time detecting system | |
| CN106451061A (en) | Automatic temperature compensation device for optical module, and control method thereof | |
| CN103606812B (en) | A kind of laser optical power self-adaptation control method based on MCU | |
| CN101117019A (en) | Temperature control device for full-automatic injecting blowing plastic hollow molding machine and temperature control method thereof | |
| CN104709748A (en) | FPGA-based thin film rolling tension control system and method | |
| CN103561497B (en) | A kind of distributed micro-wave drying control device and method | |
| CN101377686A (en) | Intelligent heat tray temperature controller and temperature control method thereof | |
| CN103268065A (en) | Construction method for ant colony algorithm fractional order PID controller of axial mixing magnetic bearing | |
| CN102412498A (en) | Temperature control system suitable for pump laser | |
| CN101175352A (en) | Numerical control driving method and device of super-radiance light emitting diode | |
| CN206820248U (en) | Laser emission automatic control circuit and related chip, optical module and equipment | |
| CN109217664B (en) | A kind of Fuzzy PI of boost breadboardin load unit | |
| CN108717307A (en) | A kind of multichannel light filling regulation and control method and system towards the whole strain light requirement difference of crop | |
| CN217158941U (en) | Constant power driving device for semiconductor laser | |
| CN103064447B (en) | Based on the laser instrument PID temperature-controlled parameter approximate three-dimensional setting method of narrow opinion | |
| CN108683075A (en) | A kind of high current high frequency modulated laser Constant-power drive circuit and control method | |
| CN107608415A (en) | A kind of electrical heating pure steam generator based on fuzzy-adaptation PID control | |
| CN108663928A (en) | A kind of Greenhouse Intelligent Control System based on fuzzy | |
| CN105007123A (en) | Optical module optical eye diagram ER controlling and adjusting method and system | |
| CN106356893A (en) | Bi-fuzzy control method for maximum power point tracking in photovoltaic grid-connected system | |
| CN102426469B (en) | painting shop temperature and humidity decoupling time lag control system | |
| CN109814407A (en) | A kind of digital photovoltaic array simulator and its control method | |
| CN115299262A (en) | High-uniformity intelligent plant light supplementing method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191112 |
|
| RJ01 | Rejection of invention patent application after publication |