CN107529249A - A kind of intelligent high-power LED attracting lamp control system and its control method - Google Patents
A kind of intelligent high-power LED attracting lamp control system and its control method Download PDFInfo
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- CN107529249A CN107529249A CN201710546058.XA CN201710546058A CN107529249A CN 107529249 A CN107529249 A CN 107529249A CN 201710546058 A CN201710546058 A CN 201710546058A CN 107529249 A CN107529249 A CN 107529249A
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/10—Controlling the intensity of the light
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
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Abstract
A kind of intelligent high-power LED attracting lamp control system and its control method, including EMI filtration modules, PFC power factor correction modules, BUCK constant-current control modules, remote communication module, master controller, acquisition module, Current Voltage temperature detecting module, several LED fish-luring lights, EMI filtration modules, PFC power factor correction modules, BUCK constant-current control modules are sequentially connected, remote communication module, master controller, acquisition module are sequentially connected, Current Voltage temperature detecting module connection acquisition module；BUCK constant-current control modules connect several LED fish-luring lights respectively, acquisition module connects several LED fish-luring lights respectively, master controller of the present invention carries out centralizing switch brightness adjustment control by MODBUS buses to all LED fish-luring lights, and can monitor the running status of every LED fish-luring light in real time.
Description
Technical field
The present invention relates to a kind of intelligent high-power LED attracting lamp control system and its control method, belong to fishery light
Halieutics field.
Background technology
In fishing industry, fish-luring light is an indispensable product in photo-induction fish operating type, and it is mainly utilized
The phototactic characteristics of fish, fished by luminous fish gathering.At present, on ship attracting lamp source all based on Metal halogen lamp.
Traditional Metal halogen lamp light efficiency is low (80-90lm/W or so), and the special stabilizer of Metal halogen lamp has single watt of cost height, can not
OnNow, can not centralized Control the shortcomings of.
Different types of fish is different to the chromaticity of light and the strong and weak phototaxis of light, so luring the variety classes shoal of fish
When catching, it is therefore desirable to the conversion brightness of fish gathering fishing lamp and photochromic as needed.And existing LED fish-luring lights are all the monochromatic temperature of white light
LED, without light modulation brightness and photochromic function；And Metal halogen lamp can not realize function above；Therefore cannot be according to not
With fish to different photochromic and brightness phototaxis, change the brightness of light and photochromic, influence fishing result.
The content of the invention
In view of the shortcomings of the prior art, the invention provides a kind of intelligent high-power LED attracting lamp control system；
Present invention also offers the control method of above-mentioned control system；
Invention has the advantages of high efficiency, and power factor is high, and harmonic wave is small, and all LED fish-luring lights are concentrated by master controller
Switch dimming controls, and constant flow regulation precision is high and voltage range is wide, can easily realize a variety of connections of connection in series-parallel of LED fish-luring lights.
Term is explained
PWM, refer to pulse width modulation；
Dutycycle, refer to the ratio between conduction time and power cycles of pulse signal；
The technical scheme is that：
A kind of intelligent high-power LED attracting lamp control system, including EMI filtration modules, PFC PFC moulds
It is block, BUCK constant-current control modules, remote communication module, master controller, acquisition module, Current Voltage temperature detecting module, some
Individual LED fish-luring lights, the EMI filtration modules, the PFC power factor correction modules, the BUCK constant-current control modules are successively
Connection, the remote communication module, the master controller, the acquisition module are sequentially connected, the Current Voltage temperature detection
Module connects the acquisition module；The BUCK constant-current control modules connect several LED fish-luring lights, the acquisition module respectively
Several LED fish-luring lights are connected respectively；
The EMI filtration modules are used to filter EM noises；The antijamming capability of electronic equipment and the reliability of system are improved,
It can be widely used for the fields such as electronic measuring instrument, computer room equipment, Switching Power Supply, TT＆C system.The PFC power factors
Correction module is used to weigh the degree that electric power is used effectively；When power factor value is bigger, it is higher to represent its electric power utilization rate.Institute
State acquisition module to be used to gather LED multi-path fish-luring light output current signal, temperature signal, and the signal collected is passed into master
Controller；The LED multi-path fish-luring light output current that the BUCK constant-current control modules are used to gather by the acquisition module is believed
Number, PWM duty cycle is controlled, realizes output constant current to load；The Current Voltage temperature detecting module is used to detect in circuit
Current signal, voltage signal and temperature signal, and send it to the acquisition module；The remote communication module is used to realize
With the connection of host computer, realized by host computer and every LED fish-luring light is precisely controlled；The master controller is used to realize journey
The automatic running of sequence, there is provided the various interfaces being connected with other modules, power down protection is carried out to the control system, and to excessively electric
Press through current anomaly situation and make quick response.Ensure the trouble free service of circuit.
The EMI filtration modules are electromagnetic interface filter.
According to improvement currently preferred, that the BUCK constant-current control modules are made in conventional BUCK circuits, add
Noninductive electric capacity C1 and driving resistance R1, R2；The circuit connecting relation of the BUCK constant-current control modules is：Including the first MOSFET
Switching tube, the second switch mosfet pipe, the first diode D1, the second diode D2, the first switch mosfet pipe, described
Two switch mosfet pipes are connected in parallel, the nothing that parallel connection pressure voltage is 600V at direct current inlet highway, capacitance is 0.47uF
Electrification holds C1, the gate pole connection driving resistance R1 of the first switch mosfet pipe, the gate pole of the second switch mosfet pipe
Connection driving resistance R2.
Conventional BUCK circuits form BUCK topological structures by buck inductor, output capacitance etc., and master controller is by will be defeated
Go out electric current and setting electric current is compared, produce the pwm signal of a pulse width variability, first is directly driven after drive amplification
Switch mosfet pipe.Take into account switching loss and component volume, base frequency selection 20KHz.At direct current inlet highway simultaneously
Connection pressure voltage is 600V, the noninductive electric capacity C1 that capacitance is 0.47uF, noninductive electric capacity C1 are the impact as caused by stray inductance
Voltage provides path, the both end voltage of the first switch mosfet pipe, the second switch mosfet pipe is impacted by 950V before
It is reduced to 430V.The gate pole connection driving resistance R1 of first switch mosfet pipe, the gate pole connection of the second switch mosfet pipe are driven
Dynamic resistance R2, avoids and concussion is produced between the gate pole of the first switch mosfet pipe and the gate pole of the second switch mosfet pipe, increases
Reliability is added.
According to currently preferred, the first switch mosfet pipe, the model of the second switch mosfet pipe are
SPW74N60C3, the first diode D1, the SiC diodes that the second diode D2 is model C3D20060SiC.
Inductance line footpath used in model SPW74N60C3 the first switch mosfet pipe, the second switch mosfet pipe is
.4mm2, it is worth for 1.2mH, magnetic core is iron sial A773392 bicyclic and around the first diode D1, the second diode D2 use Cree
The SiC diodes of company, the diode can greatly reduce the first switch mosfet pipe, second without reverse recovery time
The switching loss of switch mosfet pipe, it is highly suitable for High-Power BUCK constant-current control module.
According to currently preferred, the master controller is ARM series monolithics.
Master controller internal clock frequencies are up to 168MHz, up to 100KHz sample rate can be achieved, when system responds
Between be only 10us, be internally integrated 12 A/D converters, sampling precision may be up to 0.02%, pass through acquisition module gather multichannel
LED fish-luring light output currents, to control PWM duty cycle, realize constant flow regulation, gather DC bus-bar voltage and output voltage,
Power down protection is carried out, and quick response is made to abnormal conditions such as overvoltage overcurrent；Ensure the trouble free service of circuit.Consider
The situation steeper to LED fish-luring light C-V characteristics, constant-current circuit high-resolution are very important, and master controller can be in BUCK
Frequency makes resolution ratio reach 0.01% in the case of being 20KHz, fully meets the precision required for system fading margin.
According to currently preferred, the master controller is communicated by SP3485 serial port drives chip with host computer,
The master controller receives the instruction for the MODBUS forms that host computer is sent, and realizes that Intelligent adjustment LED fish-luring lights brightness and LED are lured
Fish lamp switch.
Soft Starting Technology is used to reduce impact, upper electric initial procedure to caused by marine generator, soft-start time can
In program setting.
According to currently preferred, the model of Master control chip in the PFC power factor correction modules
ICE3PCS01。
The PFC power factor correction modules form Boost topological structures, input by boost inductance, output capacitance etc.
Electric current and reference current relatively after error current after amplification again compared with pwm signal, obtain switching tube drive signal, soon
Speed and accurately make input current average value and input rectifying voltage in phase, close to sine wave.The PFC PFCs
Module has repaired the BUG of earlier generations chip, the abnormal conditions such as output over-voltage, input low-voltage can be protected, in voltage
There is in the case of big ups and downs still normal work, be not in that inductance saturation and chip triggering overcurrent protection etc. may be made
Into the situation of failure.For boost inductance using the double 77439A7 Sendust Cores of 1.2mH and around 1.7 line footpaths, inductance surplus is big, resists full
Strong with ability, through-current capability is big.The harmonic component of input current can be greatly reduced, in AC85V-265V wide range input voltage
The DC380V outputs inside stablized, power factor are up to 0.99.
The EMI filtration modules pass through filter inductance L3, X-type common mode capacitance C7, C9 and Y type differential mode capacitor C8, C10-C12
The lifting filtered out with power quality of harmonic wave is realized, to protect marine generator.Kept away simultaneously by a NTC thermistor R1
The impact brought when exempting from upper electric by big electrochemical capacitor, controller control relay K1 inhales after DC bus-bar voltage is more than 280V
Close, by NTC thermistor R1 short circuits.
High pressure is converted into current signal by voltage detecting by resistance R17, utilizes the spy of optocoupler U10 electric current linear transfer
Property, voltage is detected by 250 Ω sampling resistors R1 in low-pressure side, realizes the isolation of high-low pressure, adds the stability of system
And security.The voltage that-20A -+20A electric current is converted into 0.5-4.5V by ACS712 chips by current detecting is adopted
Sample, for sampling precision up to 0.1%, sample rate improves the response speed and control accuracy of system up to 100KHz.
Remote communication module realizes that a main frame can band up to 128 slave stations.Host computer connection is assisted using MODBUS RTU
View, realizes the accurate control to every lamp by way of poll.
According to currently preferred, the LED attracting lamp control system also includes lightning protection and leakage protection module, passes through institute
State BUCK constant-current control modules ground connection.Lightning protection and leakage protection module improve the tolerance to the voltge surge that is struck by lightning, and keep away
The potential person for having exempted to be brought due to electric leakage is threatened.
The method of work of above-mentioned LED attracting lamp control system, specific steps include：
(1) Width funtion AC85V-265V is inputted, harmonic wave is filtered out by the EMI filtration modules；
(2) by the PFC power factor correction modules, to step (1) Width funtion AC85V-265V processing, stabilization is obtained
Voltage V1Output；
(3) acquisition module collection LED multi-path fish-luring light output current signal, and the current signal collected is sent to master
Controller；
(4) setting electric current of LED fish-luring lights corresponding to the fish is passed through described long-range according to different fish, host computer
Communication module is sent to master controller；The electric current collected compared with setting electric current, is produced a pulsewidth by master controller
Variable pwm signal；
(5) pwm signal of pulse width variability drives the BUCK constant-current control modules, in the BUCK constant-current control modules
Complete current constant control：The LED multi-path fish-luring light output current signal of collection is filtered processing, to the multichannel after filtering process
LED fish-luring light output current datas are judged, take wherein reality of the maximum as the PID loop of BUCK constant-current control modules
Value, given electric current corresponding with the fish carry out PID calculating, and obtained data are updated to PWM fiducial values, realize current constant control.
(ask inventor's emphasis confirm it is whether clear herein, it is unclear that place ask inventor further supplement or modification)
The step (2), specific steps include：By input current and reference current relatively after error current, by putting
After big, compared with pwm signal, switching tube drive signal is obtained, makes input current average value and input rectifying voltage in phase, connects
Nearly sine wave, the DC380V outputs stablized；
The input voltage value obtained after sampling processing is compared with set-point DC200V, if input voltage is higher than given
Value then makes Anti-surging relay adhesive, by negative tempperature coefficient thermistor short circuit, thinks and realizes that high-power output is prepared.When defeated
Enter voltage less than relay is unclamped after DC80V, with suppression of guarantee when next electric to Anti-surging relay.Anti-surging relay
3 seconds after adhesive, PFC power factor correction modules control power supply output high level, PFC power factor correction module work(is enabled
Energy.PFC power factor correction modules function enables latter 3 seconds and input voltage is more than DC320V and opens BUCK constant-current control modules perseverance
Flow output function.Constant-current source employs soft Starting Technology, electric current is raised into rated value to prevent from impacting supply voltage
Time restriction is in more than 100ms.
Above-mentioned LED attracting lamp control system carries out fault judgment method, and specific steps include：
During constant current output, the LED fish-luring light output currents of collection are converted into output voltage, if output electricity
Pressure is less than 1A more than DC200V and output current maximum, then LED fish-luring lights are opened a way, and now stops PID functions, keeps existing
PWM duty cycle；To prevent because constant-current source open circuit causes high-tension situation to occur.If output voltage is less than DC200V and defeated
Go out electric current and reach setting electric current, then short circuit, output alarm signal occur for LED fish-luring lights；If output voltage can raise suddenly,
Judge removal of load situation occurs under operation, master controller closes pwm signal output.Device is damaged to prevent overtension.
Using look-up table, actual heatsink temperature corresponding to temperature sensor output voltage is obtained, when actual fin temperature
When degree is more than 75 degree, then original power is kept not increase, when actual heatsink temperature is more than 90 degree, stop jumping is standby.
Beneficial effects of the present invention are：
1st, the present invention uses BOOST+BUCK frameworks, and complete machine peak power is up to 2400 watts, and efficiency high is up to 95%.
2nd, using advanced continuous current type PFC technologies, power factor is up to 0.99, and harmonic content is small.
3rd, master controller of the present invention carries out centralizing switch brightness adjustment control by MODBUS buses to all LED fish-luring lights,
And the running status of every LED fish-luring light can be monitored in real time；Master controller of the present invention uses high-performance ARM single-chip microcomputers, and 168M is conspicuous
Dominant frequency hereby makes constant flow regulation precision height and voltage range is wide, and can easily realize a variety of connections of connection in series-parallel of LED fish-luring lights.
4th, the present invention can record the history on-off times of LED fish-luring lights, run time, operation by host computer database
The important parameters such as voltage x current.
Brief description of the drawings
Fig. 1 is structured flowchart of the present invention；
Fig. 2 is the circuit theory schematic diagram of BUCK constant-current control modules；
Fig. 3 is the circuit theory schematic diagram of EMI filtration modules；
Fig. 4 is the circuit theory schematic diagram of Current Voltage temperature detecting module；
Fig. 5 is several LED fish-luring light principle schematics.
Embodiment
The present invention is further qualified with reference to Figure of description and embodiment, but not limited to this.
Embodiment 1
A kind of intelligent high-power LED attracting lamp control system, including EMI filtration modules, PFC PFC moulds
It is block, BUCK constant-current control modules, remote communication module, master controller, acquisition module, Current Voltage temperature detecting module, some
Individual LED fish-luring lights, the EMI filtration modules, the PFC power factor correction modules, the BUCK constant-current control modules are successively
Connection, the remote communication module, the master controller, the acquisition module are sequentially connected, the Current Voltage temperature detection
Module connects the acquisition module；The BUCK constant-current control modules connect several LED fish-luring lights, the acquisition module respectively
Several LED fish-luring lights are connected respectively；As shown in Figure 1.Several LED fish-luring light principle schematics are as shown in Figure 5.
The EMI filtration modules are used to filter EM noises；The antijamming capability of electronic equipment and the reliability of system are improved,
It can be widely used for the fields such as electronic measuring instrument, computer room equipment, Switching Power Supply, TT＆C system.The PFC power factors
Correction module is used to weigh the degree that electric power is used effectively；When power factor value is bigger, it is higher to represent its electric power utilization rate.Institute
State acquisition module to be used to gather LED multi-path fish-luring light output current signal, temperature signal, and the signal collected is passed into master
Controller；The LED multi-path fish-luring light output current that the BUCK constant-current control modules are used to gather by the acquisition module is believed
Number, PWM duty cycle is controlled, realizes output constant current to load；The Current Voltage temperature detecting module is used to detect in circuit
Current signal, voltage signal and temperature signal, and send it to the acquisition module；The remote communication module is used to realize
With the connection of host computer, realized by host computer and every LED fish-luring light is precisely controlled；The master controller is used to realize journey
The automatic running of sequence, there is provided the various interfaces being connected with other modules, power down protection is carried out to the control system, and to excessively electric
Press through current anomaly situation and make quick response.Ensure the trouble free service of circuit.
The EMI filtration modules are electromagnetic interface filter.The circuit theory schematic diagram of EMI filtration modules is as shown in Figure 3.
The improvement that the BUCK constant-current control modules are made in conventional BUCK circuits, add noninductive electric capacity C1 and driving electricity
Hinder R1, R2；The circuit connecting relation of the BUCK constant-current control modules is：Including the first switch mosfet pipe, the 2nd MOSFET
Switching tube, the first diode D1, the second diode D2, the first switch mosfet pipe, the second switch mosfet pipe are simultaneously
Connection connection, the noninductive electric capacity C1 that parallel connection pressure voltage is 600V at direct current inlet highway, capacitance is 0.47uF, described first
The gate pole connection driving resistance R1 of switch mosfet pipe, the gate pole connection driving resistance R2 of the second switch mosfet pipe.Such as
Shown in Fig. 2.
Conventional BUCK circuits form BUCK topological structures by buck inductor, output capacitance etc., and master controller is by will be defeated
Go out electric current and setting electric current is compared, produce the pwm signal of a pulse width variability, first is directly driven after drive amplification
Switch mosfet pipe.Take into account switching loss and component volume, base frequency selection 20KHz.At direct current inlet highway simultaneously
Connection pressure voltage is 600V, the noninductive electric capacity C1 that capacitance is 0.47uF, noninductive electric capacity C1 are the impact as caused by stray inductance
Voltage provides path, the both end voltage of the first switch mosfet pipe, the second switch mosfet pipe is impacted by 950V before
It is reduced to 430V.The gate pole connection driving resistance R1 of first switch mosfet pipe, the gate pole connection of the second switch mosfet pipe are driven
Dynamic resistance R2, avoids and concussion is produced between the gate pole of the first switch mosfet pipe and the gate pole of the second switch mosfet pipe, increases
Reliability is added.
The first switch mosfet pipe, the model of the second switch mosfet pipe are SPW74N60C3, and described
One diode D1, the second diode D2 are model C3D20060SiC SiC diodes.
Inductance line footpath used in model SPW74N60C3 the first switch mosfet pipe, the second switch mosfet pipe is
.4mm2, it is worth for 1.2mH, magnetic core is iron sial A773392 bicyclic and around the first diode D1, the second diode D2 use Cree
The SiC diodes of company, the diode can greatly reduce the first switch mosfet pipe, second without reverse recovery time
The switching loss of switch mosfet pipe, it is highly suitable for High-Power BUCK constant-current control module.
The master controller is ARM series monolithics.
Master controller internal clock frequencies are up to 168MHz, up to 100KHz sample rate can be achieved, when system responds
Between be only 10us, be internally integrated 12 A/D converters, sampling precision may be up to 0.02%, pass through acquisition module gather multichannel
LED fish-luring light output currents, to control PWM duty cycle, realize constant flow regulation, gather DC bus-bar voltage and output voltage,
Power down protection is carried out, and quick response is made to abnormal conditions such as overvoltage overcurrent；Ensure the trouble free service of circuit.Consider
The situation steeper to LED fish-luring light C-V characteristics, constant-current circuit high-resolution are very important, and master controller can be in BUCK
Frequency makes resolution ratio reach 0.01% in the case of being 20KHz, fully meets the precision required for system fading margin.
The master controller is communicated by SP3485 serial port drives chip with host computer, in the master controller reception
The instruction for the MODBUS forms that position machine is sent, realizes Intelligent adjustment LED fish-luring lights brightness and LED attracting lamp switches.
Soft Starting Technology is used to reduce impact, upper electric initial procedure to caused by marine generator, soft-start time can
In program setting.
The model ICE3PCS01 of Master control chip in the PFC power factor correction modules.
The PFC power factor correction modules form Boost topological structures, input by boost inductance, output capacitance etc.
Electric current and reference current relatively after error current after amplification again compared with pwm signal, obtain switching tube drive signal, soon
Speed and accurately make input current average value and input rectifying voltage in phase, close to sine wave.The PFC PFCs
Module has repaired the BUG of earlier generations chip, the abnormal conditions such as output over-voltage, input low-voltage can be protected, in voltage
There is in the case of big ups and downs still normal work, be not in that inductance saturation and chip triggering overcurrent protection etc. may be made
Into the situation of failure.For boost inductance using the double 77439A7 Sendust Cores of 1.2mH and around 1.7 line footpaths, inductance surplus is big, resists full
Strong with ability, through-current capability is big.The harmonic component of input current can be greatly reduced, in AC85V-265V wide range input voltage
The DC380V outputs inside stablized, power factor are up to 0.99.
The EMI filtration modules pass through filter inductance L3, X-type common mode capacitance C7, C9 and Y type differential mode capacitor C8, C10-C12
The lifting filtered out with power quality of harmonic wave is realized, to protect marine generator.Kept away simultaneously by a NTC thermistor R1
The impact brought when exempting from upper electric by big electrochemical capacitor, controller control relay K1 inhales after DC bus-bar voltage is more than 280V
Close, by NTC thermistor R1 short circuits.
Voltage detecting is realized by the Current Voltage temperature detecting module, and high pressure is converted into electric current by resistance R17
Signal, using the characteristic of optocoupler U10 electric current linear transfer, voltage is detected by 250 Ω sampling resistors R1 in low-pressure side, it is real
The isolation of existing high-low pressure, add the stability and security of system.Current detecting is by ACS712 chips by -20A -+20A
Electric current be converted into 0.5-4.5V voltage and sampled, up to 0.1%, sample rate improves sampling precision up to 100KHz
The response speed and control accuracy of system.As shown in Figure 4.
Remote communication module realizes that a main frame can band up to 128 slave stations.Host computer connection is assisted using MODBUS RTU
View, realizes the accurate control to every lamp by way of poll.
The LED attracting lamp control system also includes lightning protection and leakage protection module, passes through the BUCK current constant controls mould
Block is grounded.Lightning protection and leakage protection module improve the tolerance to the voltge surge that is struck by lightning, and avoid because electric leakage is brought
It is potential the person threaten.
Embodiment 2
The method of work of LED attracting lamp control systems described in embodiment 1, specific steps include：
(1) Width funtion AC85V-265V is inputted, harmonic wave is filtered out by the EMI filtration modules；
(2) by the PFC power factor correction modules, to step (1) Width funtion AC85V-265V processing, stabilization is obtained
Voltage V1Output；
(3) acquisition module collection LED multi-path fish-luring light output current signal, and the current signal collected is sent to master
Controller；
(4) setting electric current of LED fish-luring lights corresponding to the fish is passed through described long-range according to different fish, host computer
Communication module is sent to master controller；The electric current collected compared with setting electric current, is produced a pulsewidth by master controller
Variable pwm signal；
(5) pwm signal of pulse width variability drives the BUCK constant-current control modules, in the BUCK constant-current control modules
Complete current constant control：The LED multi-path fish-luring light output current signal of collection is filtered processing, to the multichannel after filtering process
LED fish-luring light output current datas are judged, take wherein reality of the maximum as the PID loop of BUCK constant-current control modules
Value, given electric current corresponding with the fish carry out PID calculating, and obtained data are updated to PWM fiducial values, realize current constant control.
(ask inventor's emphasis confirm it is whether clear herein, it is unclear that place ask inventor further supplement or modification)
The step (2), specific steps include：By input current and reference current relatively after error current, by putting
After big, compared with pwm signal, switching tube drive signal is obtained, makes input current average value and input rectifying voltage in phase, connects
Nearly sine wave, the DC380V outputs stablized；
Above-mentioned LED attracting lamp control system carries out fault judgment method, and specific steps include：
During constant current output, the LED fish-luring light output currents of collection are converted into output voltage, if output electricity
Pressure is less than 1A more than DC200V and output current maximum, then LED fish-luring lights are opened a way, and now stops PID functions, keeps existing
PWM duty cycle；To prevent because constant-current source open circuit causes high-tension situation to occur.If output voltage is less than DC200V and defeated
Go out electric current and reach setting electric current, then short circuit, output alarm signal occur for LED fish-luring lights；If output voltage can raise suddenly,
Judge removal of load situation occurs under operation, master controller closes pwm signal output.Device is damaged to prevent overtension.
Using look-up table, actual heatsink temperature corresponding to temperature sensor output voltage is obtained, when actual fin temperature
When degree is more than 75 degree, then original power is kept not increase, when actual heatsink temperature is more than 90 degree, stop jumping is standby.
The input voltage value obtained after sampling processing is compared with set-point DC200V, if input voltage is higher than given
Value then makes Anti-surging relay adhesive, by negative tempperature coefficient thermistor short circuit, thinks and realizes that high-power output is prepared.When defeated
Enter voltage less than relay is unclamped after DC80V, with suppression of guarantee when next electric to surge.3 after Anti-surging relay adhesive
Second, PFC control power supply output high level, enable PFC functions.PFC functions enable latter 3 seconds and input voltage is opened more than DC320V
Open BUCK constant current output functions.Constant-current source employs soft Starting Technology, electric current is raised to prevent from impacting supply voltage
The time restriction of rated value is in more than 100ms.
The control method of main program：At initialization timer, ADC converters, PWM generator, I/O ends after system electrification
Enter cyclic program after the inner function modules such as mouth, house dog, communication command is handled in main program cycle program, receive upper
The modbus 03 06 10 that machine is sent is instructed, and respective handling is carried out after CRC check, and answered with modbus forms
Answer.In main program simultaneously detect the presence of flash data read write command, if any then to the data of appropriate address at
Reason, makes data persistence, realizes power down store function.
Claims (10)
- A kind of 1. intelligent high-power LED attracting lamp control system, it is characterised in that including EMI filtration modules, PFC power because Number correction module, BUCK constant-current control modules, remote communication module, master controller, acquisition module, Current Voltage temperature detection mould Block, several LED fish-luring lights, the EMI filtration modules, the PFC power factor correction modules, the BUCK current constant controls mould Block is sequentially connected, and the remote communication module, the master controller, the acquisition module are sequentially connected, the Current Voltage temperature Spend detection module and connect the acquisition module；The BUCK constant-current control modules connect several LED fish-luring lights respectively, described to adopt Collection module connects several LED fish-luring lights respectively；The EMI filtration modules are used to filter EM noises；The PFC power factor correction modules are used to weigh electric power by effective profit Degree；The acquisition module is used to gather LED multi-path fish-luring light output current signal, temperature signal, and will collect Signal passes to master controller；The BUCK constant-current control modules are used for the LED multi-path attracting gathered by the acquisition module Lamp output current signal, PWM duty cycle is controlled, realize output constant current to load；The Current Voltage temperature detecting module is used for Current signal, voltage signal and the temperature signal in circuit are detected, and sends it to the acquisition module；The telecommunication Module is used to realize the connection with host computer, is realized by host computer and every LED fish-luring light is precisely controlled；The main control Device is used for the automatic running for realizing program, there is provided the various interfaces being connected with other modules, power down is carried out to the control system Protection, and quick response is made to overvoltage overcurrent abnormality situation.
- 2. a kind of intelligent high-power LED attracting lamp control system according to claim 1, it is characterised in that described The circuit connecting relation of BUCK constant-current control modules is：Including the first switch mosfet pipe, the second switch mosfet pipe, the one or two Pole pipe D1, the second diode D2, the first switch mosfet pipe, the second switch mosfet pipe are connected in parallel, in direct current The noninductive electric capacity C1 that parallel connection pressure voltage is 600V at inlet highway, capacitance is 0.47uF, the first switch mosfet pipe Gate pole connection driving resistance R1, the gate pole connection driving resistance R2 of the second switch mosfet pipe.
- 3. a kind of intelligent high-power LED attracting lamp control system according to claim 2, it is characterised in that described One switch mosfet pipe, the model of the second switch mosfet pipe are SPW74N60C3, the first diode D1, described Second diode D2 is model C3D20060SiC SiC diodes.
- A kind of 4. intelligent high-power LED attracting lamp control system according to claim 1, it is characterised in that the master Controller is ARM series monolithics.
- A kind of 5. intelligent high-power LED attracting lamp control system according to claim 4, it is characterised in that the master Controller is communicated by SP3485 serial port drives chip with host computer, and the master controller receives what host computer was sent The instruction of MODBUS forms, realize Intelligent adjustment LED fish-luring lights brightness and LED attracting lamp switches.
- A kind of 6. intelligent high-power LED attracting lamp control system according to claim 1, it is characterised in that the PFC The model ICE3PCS01 of Master control chip in power factor correction module.
- A kind of 7. intelligent high-power LED attracting lamp control system according to claim 1, it is characterised in that the LED Attracting lamp control system also includes lightning protection and leakage protection module, is grounded by the BUCK constant-current control modules.
- 8. the method for work of any described LED attracting lamp control systems of claim 1-7, it is characterised in that specific steps bag Include：(1) Width funtion AC85V-265V is inputted, harmonic wave is filtered out by the EMI filtration modules；(2) by the PFC power factor correction modules, to step (1) Width funtion AC85V-265V processing, burning voltage is obtained V1Output；(3) acquisition module collection LED multi-path fish-luring light output current signal, and the current signal collected is sent to main control Device；(4) setting electric current of LED fish-luring lights corresponding to the fish is passed through by the telecommunication according to different fish, host computer Module is sent to master controller；The electric current collected compared with setting electric current, is produced a pulse width variability by master controller Pwm signal；(5) pwm signal of pulse width variability drives the BUCK constant-current control modules, is completed in the BUCK constant-current control modules Current constant control：The LED multi-path fish-luring light output current signal of collection is filtered processing, to the LED multi-path after filtering process Fish-luring light output current data is judged, takes wherein actual value of the maximum as the PID loop of BUCK constant-current control modules, with Electric current is given corresponding to the fish and carries out PID calculating, obtained data are updated to PWM fiducial values, realize current constant control.
- 9. the method for work of LED attracting lamp control system according to claim 8, it is characterised in that the step (2), Specific steps include：By input current and reference current relatively after error current, after amplification, compared with pwm signal, obtain To switching tube drive signal, make input current average value and input rectifying voltage in phase, close to sine wave, stablized DC380V is exported.
- 10. any described LED attracting lamp control systems of claim 1-7 carry out fault judgment method, it is characterised in that specific Step includes：During constant current output, the LED fish-luring light output currents of collection are converted into output voltage, if output Voltage is more than DC200V and output current maximum is less than 1A, then LED fish-luring lights are opened a way, and now stops PID functions, keeps existing PWM duty cycle；If output voltage is less than DC200V and output current reaches setting electric current, short circuit occurs for LED fish-luring lights, defeated Go out alarm signal；If output voltage can raise suddenly, judge removal of load situation occurs under operation, master controller closes Close pwm signal output.
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