CMX45
CMX45
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當(dāng)前位置:自動(dòng)化網(wǎng)>自動(dòng)化文庫>應(yīng)用案例>基于改進(jìn)遺傳算法的小波神經(jīng)網(wǎng)絡(luò)控制器的研究*
基于改進(jìn)遺傳算法的小波神經(jīng)網(wǎng)絡(luò)控制器的研究*
發(fā)布時(shí)間:2013-01-07 來源:中國自動(dòng)化網(wǎng) 類型:應(yīng)用案例 484人瀏覽
關(guān)鍵字:
小波神經(jīng) 改進(jìn)遺傳 二級(jí)倒立擺
導(dǎo)讀:
1 引言人工神經(jīng)網(wǎng)絡(luò)(Artificial neural network,ANN)具有自組織,自適應(yīng),自學(xué)習(xí)的能力。而小波分析是于上世紀(jì)八十年代以傅里葉分析為基礎(chǔ)所取得的突破性發(fā)展,其良好的局部時(shí)-頻域特性與多尺度分辨能力可以很好的提...
1 引言
人工神經(jīng)網(wǎng)絡(luò)(Artificial neural network,ANN)具有自組織,自適應(yīng),自學(xué)習(xí)的能力。而小波分析是于上世紀(jì)八十年代以傅里葉分析為基礎(chǔ)所取得的突破性發(fā)展,其良好的局部時(shí)-頻域特性與多尺度分辨能力可以很好的提高神經(jīng)網(wǎng)絡(luò)的性能。
小波神經(jīng)網(wǎng)絡(luò)(Wavelet Neural Networks, WNN)便是引入小波分析理論的一種前饋型神經(jīng)網(wǎng)絡(luò),其用小波基函數(shù)代替?zhèn)鹘y(tǒng)的Sigmoid函數(shù)[1,2]。由于平移和伸縮因子的引入,使得小波神經(jīng)網(wǎng)絡(luò)具有更多的自由度、更加靈活的函數(shù)逼近能力和更強(qiáng)的容錯(cuò)能力。此外,網(wǎng)絡(luò)權(quán)系數(shù)線性分布與學(xué)習(xí)目標(biāo)函數(shù)的凸性,使網(wǎng)絡(luò)的訓(xùn)練過程從根本上避免了局部*化等問題[3,4]。
由于傳統(tǒng)的小波神經(jīng)網(wǎng)絡(luò)具有以誤差反向傳播算法選擇參數(shù)依據(jù)的不足[5],為了克服這一問題,可以選擇遺傳算法來對(duì)小波神經(jīng)網(wǎng)絡(luò)進(jìn)行優(yōu)化。兩者的結(jié)合,可以得到一種擁有良好的全局優(yōu)化搜索和局部優(yōu)化求解性能的學(xué)習(xí)訓(xùn)練途徑。但是遺傳算法一般有收斂速度慢,計(jì)算的穩(wěn)定性不好,容易陷入“早熟”收斂等問題,因此本文提出一種改進(jìn)遺傳算法應(yīng)用于小波神經(jīng)網(wǎng)絡(luò)。
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S 9-001-70879-02 MCC MOTOR CONTROL CENTER PANEL COVER 9"x20" 9 x 20
ACROMAG INLIPACK DUAL ALARM RELAY MODULE 812A-0200
NEW GE GENERAL ELECTRIC ELECTRICAL COIL 366A732G1
Moore SCT Signal Converter SCT/0-10V/0-10V/117AC/-ATL AB Used
Rex Reactor 3PR-0008C3H 8 amp Class F H-96
WENGLOR INDUCTIVE PROXIMITY SWITCH 15mm IX150BM80VA3
Klinger Weld In Valve KVMd1/2 PN84 C25 1/2" New
SIEMENS SIMATIC S5 6ES5 705-0BB20 INTERCONNECTING CABLE
NEW VEEDER ROOT 651800-701 PROXIMITY SWITCH 10-40VDC/1A
SIEMENS I/O MODUL 64E/32AUSGAENGE 64E / 32AUSGAENGE
WEST GULTON 1440-508A 1440508A TEMPERATURE CONTROLLER
Fuji Kiki Electronic Temperature Recorder DER8701 DER 8701 Used
CINDEC WEIGHT INDICATOR UMC2002FACA UMC-2002-FACA
Thaleim Incremental Encoder Alternating Current Tachnogenerator D-37269 8K Ω OHM
Lot of 10 SECO Carbide Insert Shim USN120612 USN443 New
Keyence Display Monitor CV-M11 CVM11 110/120 VAC 75 Ω Ohm 9" Screen
Triplett Panel Meter 420-GLB 50-0-50 DC Microamperes 2-7/8"L X 4-15/16"W NIB
STI 41144 OptoFlex Retro Sensor 20FT 203-20 20320 New
NEW RITTAL S02840 ELECTRICAL ENCLOSURE CABLE BASE PLINTH 1200x500x200
Versa Valves KAR-19V-KF30-125G Regular Assembly w/Gauge
FUJI ELECTRIC POWER TRANSISTOR MODULE 75A 2MBI75J-120
MOELLER LE4-622-CX1 INPUT MODULE LE4622CX1
MOTAN JUMO RESISTANCE THERMOMETER PT100 320.00277 IP65 NEW
NO NAME EDGE DETECTOR 30MM GAP WTI IR-2 CA 2314
NEW SCHUNK CARBON MOTOR BRUSH E49 1-17/32"LENGTH 1-1/4"WIDTH 3/8"THICK
Foxboro 873 Ph/ORP Analyzer 873PH-AIPFGZ-7 873PHAIPFGZ7
LOT OF 2 NO NAME 1-1/2"X 6"PRECISION INCREMENT ADJUST SAFETY SIGN NEW ALUMINUM
PARKER S/S STAINLESS STEEL VACUSEAL GLAND 8-6 V1T3-SSV 1/2"SEAL 3/8"TUBE
ST ELECTRONICS SEMICONDUCTOR M27C256B-20FX1 M27C256B20FX1 89132M
NEW PARKER BUNAN PISTON SEAL KIT PK8002A001 8"
IDEC YELLOW STROBE LIGHT LED LENS UNIT LT7A-XE-Y NEW
POTTER & BRUMFIELD CIRCUIT MOUNTING BOARD 2I0-4B 120/250V VOLT 4A A AMP W/ODC-5
ASTRO SYSTEMS ASTROSYSTEMS ASTROPLX PLX 100 POSTION SYNCHRONIZER AP52-3-2-1
MICRO-EPSILON DT 119.01-U 12.A SENSOR DT11901U12A
EAO Lot of 10 Clear Lens Cap 039017 03.901.7 New
Malaysia Semiconductor BI HM00-98691 Lot of 20 New
NEW WESTINGHOUSE 0T1AB OIL TITE CONTACT BLOCK 1 NC ONLY 600 VAC
Eagle Signal MP2A602 Timer 115/120V 3W 30RPM New
ALLEN BRADLEY VERSAVIEW 700R VERSA VIEW INDUSTRIAL COMPUTER 6155R-7P2KH SER A
NOS WIEGAND T 393 500W80 001 74" HEATER ELEMENT 4700W 4700 WATT 480V 480 V VOLT
Justrite Safety Swab Pail 10471 6 quarts 5.7 liters NIB
ROSEMOUNT 444TJ1U1A1NA TYPE J TEMPERATURE TRANSMITTER
OLSON ELECTRONICS DATA PROTECTOR MAINS FILTER SUPPRESSOR 10 PLUG 250V 6.3A 3910
Veeder-Root 778513-331 Inductive Proximity Switch New
New in Box Joucomatic 19000006 12 V DC A752980
SQUARE D MCC BUCKET NC 403 NC403 SIZE SZ 1 120V a 60HZ
RED LION CONTROLS MCS PANEL MESSAGE CENTER COUNTER MCS2Y00A
MTS Temposonics R-Series Sensor RHM0180MD701S2G6102 0.002mm/24 Bit Gray New
ALLEN BRADLEY INFRARED SLOT SCANNER 2755-B2 2755B2 A
Formsprag CL41226-1GRLH Clutch FSR-12/1.500GRLH LH
WOLOCK & LOTT INDUSTRIAL DRIVES AND CONTROLS LCD DISPLAY CONTROL PANEL UL-790611
Vishay-Siliconix SI4410DY-T1-REVA N-Channel Mosfet 1203pc New
NEW DWYER DIFFERENTIAL PRESSURE SWITCH 1635-1-MIL 548783 T44P-S11662601 .20-1.0
PRX POWER MODULE KD621220
No Name Thermocouple T/C Extr I/C 1-3/4" X 40' BS28H13A New
NEW GENERAL ELECTRIC CONTROL SWITCH 16SB1 1284B214G1 16SB11284B214G1
Toledo Reliance Scale ReadOut Display 8132 SS Enclosure
YOKOGAWA CONTROLLER UT40 131 UT40-131*B *B/DCV/RET
BIG BEAM EMERGENCY EXIT SIGN EXFL2RWWU 499-6612-MMC NEW
NEW LOT OF 9 ENTRELEC TERMINAL BLOCK M4/6 0115 600 VOLT 25 AMP A 25A 4MM
NEW LOT OF 2 SMC 90° MALE ELBOW FITTING KQ2L13-36S 1/2" TUBE 3/8" NPT
SIEMENS SIMOVERT MC RECTIFIER MODULE 6SE7024-1EP850-AA0 6SE7-024-1EP85-0AA0
BEI Motion Industrial Encoder/Sensor H25D-SS-360-ABZ-7406R-LED-SM16-S 5VDC New
Allen Bradley 4-Channel Analog IFM Terminal 1492-AIFM4-3 Series A Used
NEW UNKNOWN BRAND NAME CIRCUIT BOARD CARD SERIES 6200 042-0114C 0420114C
Masterdrive Bushing 3535 75MM New
Toshiba OPTION BOARD Circuit Card Board VF3X-0983 M6583750P1 P6580983G
ANSI Connecting Links 60-2 602 3/4"pitch x 1/2"width Lot of 3 New
NEW AUTOMATION DIRECT GCX1231-24L RED PILOT LIGHT 2.6W 250V GCX123124L
Omron Memory Unit C200H-MR431 C200HMR431 8KB RAM New in Box
RKC Remote Parameter CV-1-30 CV130 600 Volt 30A 30 A Amp Lot of 2 Used
New Morse Connecting Link 120 B2 C/L C/P S/F 1PB 128104
RELIANCE ELECTRIC AUTOMATE 802812-R 802812R 45C60 DUAL 115VAC ,2A OUTPUT MODULE
PED Special Spring M 200-038 A bn 10474 0908 180 Bar 2610 PSI New
HONEYWELL TEMPERATURE CONTROLLER UDC-3000 DC3001-0-020-1-00-0111 120V 10VA
emecanique Photoelectric Sensor XU2B18PP340D-R 12-24 VDC Used
Canfield Connector 910-000-002 Reed Switch 910000002
NEW GATES POWER GRIP TIMING BELT 390H200 2"WIDTH 390 H 200
Square D Magnet Coil C27A 2936 S1 120V New 2936S1C27A
Spraying Systems Co. 3/8" QJJ-SS Quickjet Tip Assembly QA-SS-5 New
NEW LOT OF 3 THOMAS & BETTS 3/8" COPPER TERMINAL LUGS 54179 300 MCM
No Name Heater 3HAC 4560.5/02 240 Watt 77R 03.12 Used
BANNER AMPLIFIER MODULE CM3RA 250Vac 5A A AMP 11 PIN
Allen Bradley Input Module 1746-IV16 1746IV16 Series B 10-30 VDC Used
No Name Thermocouple BS28F13A 2-1/2" X 6' New
Allen Bradley Input Module 1746-IV16 1746IV16 Series A 10-30 VDC Used
Allen Bradley Surge Suppressor 1401-N10 1401N10 Series A Lot of 2 New
HUB CITY 0220-62036 022062036 MODEL: 264 RATIO: 5:1 SPEED REDUCER GEARBOX NEW
PARKER 2-AXIS MOTION CONTROLLER COMPUMOTOR 6270 6270-ANI 6270ANI
NEW DWYER PRESSURE SWITCH 1635-1 T17V-S25104202 16351 .20-1.0
NEW TEMPCO H09 06 HDC20950 1000 WATT W 10-3/4"HEATER 240VOLT THERMOCOUPLE HEATER
Rosemount Analytical Water Quality Analyzer SCL-C-002-M2 120 VDC 240 VAC New
AKINSUN RED ROD SENSOR R200600B35 40P0247 750W 240V NEW
NEW FLEXOLAP REID BRASS BLIND HOLE LAP BARREL CYLINDER 4-FB-12 4FB12 9/16-5/8
USED Siemens Relay Output Interface 3TX7 002-1AB00 3TX70021AB00 24VAC/VDC
LOT OF 2 WAGO TYPE 281 FUSED TERMINAL BLOCK 281-623/281-541 1/4" x 1 1/4" 24VAC
GE GENERAL ELECTRIC C10 CIRCUIT BREAKER V07110 277/480V AC 10A A AMP 3 POLE
VOLEX P0912CM.C 41/97 NODE BUS LOT OF 7 NEW
NEW LOT OF 12 GORDON BRUSH BOTTLE TYPE SPIRAL MOTOR BRUSH 435148 .5X4X26 5/8"RG
Innovative Tech P-PLUS Transient Voltage Surge Suppressor P-600NN 600V 3PH Used
PEPPERL+FUCHS LIGHT CURTAIN TRANSMITTER SLC30-450-T
ABB 58128180 THYRISTOR ADAPTER FOR GTO 5812 8180 NEW
UE United Electric Pressure Switch H400-443 H400443
Penn Controls P74DA-2 Pressure Switch P74DA2 New
SIEMENS MOTOR 55 HP 41.5KW SCREW PUMP 1LA5207-2AA66-Z
Burling F-1C Temperature Control 912144 -200 - 700°F
Trutzschler Photoelectric Eye S 015 S015 491-72-330.000 Used
PARTLOW APC 3000 APC3000 DIGITAL TEMPERATURE CONTROLLER PROCESS CONTROL 311011
Crown SCR Electronic Control II 107962-00R 10796200R
EXTRON MODEL 706 DANCER CONTROL 0-15 VDC, 0-6.2 VDC
CUSTOM CONTROL DIFF TEMPERATURE SWITCH 646DZEM1 NEW
A.A HEAT SINK AA.MOD.180.C27 12 AA.MOD.180.C27
KLEINESDAR WARETECHNIK EIN7500/480-750RB HEAT ELEMENT
ALLEN BRADLEY DISPLAY MODULE 24830-302-01 2483030201 NIB
Gould Power Supply PLS4 110-0108 1100108 Used
NOS DORRIS GEARMOTOR 2MM METAL MOTOR MOUNT ASSEMBLY
Southern States LLC Fuse Kit F15200 200A 200 A Amp 15kV 15 KV New
MTE Line/Load Reactor RL-01812A RL01812A 1.50 Ω Ohm 18A 18 A Amps New
BURNDY GREEN DIE N75 1 STR CU 375 OR 11 NEW
2 Hoffman Electric Enclosure Cover Seal Z06043LP 6-3/4"
LOT OF 3 NEW GENERAL ELECTRIC OVERLOAD HEATER C0.28A C028A
MOELLER XPOLE CIRCUIT BREAKER FAZ-B10/1 10 AMP A 10A 1 POLE 1P
EIL AC Watt Transducer WTD-010-J WTD010J 120VAC 500W 4-20mADC 1PH 2 Wire Used
SQUARE D MCC BUCKET 7.5HP 7.5 HP 15A SIZE 1 2053326-A.001 FHP36015 8736 SCO-7 .
NEW RENCOL MALE CLAMP LEVER HANDLE M16-2.0 THREAD 2" THREAD LENGTH
NEW EMECANIQUE GREEN LIGHT MODULE XVAL331 XVAL 331
THOMAS & BETTS 5" INTERMEDIATE SNAP-LOC SPACERS W/ 3" SEPARATION LOT OF 30 NIB
NEW ROSS CONTROLS SERVICE KIT 2173B8900W
NO NAME 18NDSA-Z1 05D 18NDSAZ1 05D 18NDSAZ105D PROXIMITY SENSOR NEW
SQUARE D PANELBOARD FUSED FUSIBLE QMB SWITCH 200A 200 AMP A QMB-364 SER D2 600V
Rex Reactor 3PR-0027C3H 27 amp Class F I96
LINEAR DRG DIGITAL GATE RECEIVER EF4 DNR00085 24 VOLT AC/DC - USED
Phoenix Contact Bus Terminal Module IBS ST 24 BK-T IBSST24BKT 24 VDC Used
SIEMENS Metal Base for tube 8WD4308-0DC NEW
New Toledo Keyboard Overlay A13250800A #18 18 Lot of 5
Westinghouse 1538A8 Forward Rectifier Diode 1538A88H58
NEW WOODS 9302 X 1 1/2 TIMING BELT 9302X11/2 1-1/2" WIDE
No Name Encapsulation ADM
可以做到按端口轉(zhuǎn)發(fā),其原理是交換機(jī)可以根據(jù)數(shù)據(jù)幀頭中的目的MAC地址找到端口,該端口所連接的設(shè)備*接受該數(shù)據(jù)幀,這就避免了大量的沖突。
交換機(jī)的工作過程如下:
(1)每個(gè)端口接收網(wǎng)絡(luò)上的所有數(shù)據(jù)幀。
(2)利用接收到的數(shù)據(jù)幀中的源MAC地址來建立MAC地址表(即是源地址學(xué)習(xí)),使用地址老化機(jī)制進(jìn)行地址表的維護(hù)。
(3)在MAC地址表中查找數(shù)據(jù)幀中的目的MAC地址。若找到,則發(fā)送到目的MAC地址設(shè)備所在的端口(不包括原端口)。;若找不到,則向所有端口發(fā)送(不包括原端口)。
(4)對(duì)于廣播幀和多播幀則向所有的端口轉(zhuǎn)發(fā)。
211EARS Lot of 20 New
Diamond 120-2 Chain Connecting Link C.L. C-6172CL-08
Parker Port Block Connector Kit 3/4" PS853P New
No Name Lock & Assembly RCK13 25X50 New
MCGUIRE MC GUIRE ETR-1 CONTROL PANEL DOOR LEVELER 112-764T 1PH 115V