Guided vehicles (GVs) are commonly used for the internal transportation of loads in warehouses, production plants and terminals. These guided vehicles can be routed with a variety of vehicle dispatching rules in an attempt to meet performance criteria such as minimizing the average load waiting times. In this research, we use simulation models of three companies to evaluate the performance of several real-time vehicle dispatching rules, in part described in the literature. It appears that there is a clear difference in average load waiting time between the different dispatching rules in the different environments. Simple rules, based on load and vehicle proximity (distance-based) perform best for all cases. The penalty for this is a relatively high maximum load waiting time. A distance-based rule with time truncation, giving more priority to loads that have to wait longer than a time threshold, appears to yield the best possible overall performance. A rule that particularly considers load-waiting time performs poor overall. We also show that using little pre-arrival information of loads leads to a significant improvement in the performance of the dispatching rules without changing their performance ranking.
標簽： Testing and classifying vehicle dispatching rules in three real-world settings
上傳時間： 2016-04-01
上傳用戶：五塊錢的油條
Improved guaranteed cost control and quantum adaptive control are developed in this study for a quadrotor helicopter with state delay and actuator faults. Improved guaranteed cost control is designed to eliminate disturbance effects and guarantee the robust stability of a quadrotor helicopter with state delay. The inapplicability of guaranteed cost control to the quadrotor linear model is addressed by combining guaranteed cost control with a model reference linear quadratic regulator. In the event of actuator faults, quadrotor tracking performance is maintained through quantum adaptive control. Finally, the availability of the proposed scheme is verified through numerical simulation
標簽： Control Helicopter Guaranteed Quadrotor Adaptive Strategy Improved Quantum Delay State
上傳時間： 2017-07-15
上傳用戶：bingzi_ml
AEC-Q100 qualified ? 12 V and 24 V battery systems compliance ? 3.3 V and 5 V logic compatible I/O ? 8-channel configurable MOSFET pre-driver – High-side (N-channel and P-channel MOS) – Low-side (N-channel MOS) – H-bridge (up to 2 H-bridge) – Peak & Hold (2 loads) ? Operating battery supply voltage 3.8 V to 36 V ? Operating VDD supply voltage 4.5 V to 5.5 V ? All device pins, except the ground pins, withstand at least 40 V ? Programmable gate charge/discharge currents for improving EMI behavior
標簽： configurable Automotive pre-driver suitable channel systems MOSFET fully High side
上傳時間： 2019-03-27
上傳用戶：guaixiaolong
obot control, a subject aimed at making robots behave as desired, has been extensively developed for more than two decades. Among many books being published on this subject, a common feature is to treat a robot as a single system that is to be controlled by a variety of control algorithms depending on different scenarios and control objectives. However, when a robot becomes more complex and its degrees of freedom of motion increase substantially, the needed control computation can easily go beyond the scope a modern computer can handle within a pre-specified sampling period. A solution is to base the control on subsystem dynamics.
標簽： decomposition virtual control
上傳時間： 2019-09-04
上傳用戶：txb96
Texas Instruments常用元件庫 TI Analog Timer Circuit.IntLib TI Logic Flip-Flop.IntLib TI Logic Gate 1.IntLib TI Logic Gate 2.IntLib TI Logic Latch.IntLib TI Logic Switch.IntLib TI Power Mgt Voltage Reference.IntLib TI Power Mgt Voltage Regulator.IntLib Texas Instruments Footprints.PcbLib等等
標簽： Instruments Texas常用元件庫 Altium Designer TI
上傳時間： 2019-11-28
上傳用戶：blue sky
In this chapter we give a quick overview of control theory, explaining why integral feedback control works, describing PID controllers, and summariz- ing some of the currently available techniques for PID controller design. This background will serve to motivate our results on PID control, pre- sented in the subsequent chapters.
標簽： Controllers Time-Delay Systems PID for
上傳時間： 2020-06-10
上傳用戶：shancjb
使用主流buck降壓芯片設計雙軌電源Creating a Split-Rail Power Supply With a Wide Input Voltage Buck Regulator
標簽： 電源
上傳時間： 2021-11-07
上傳用戶：20125101110
AT89S52單片機主8入8出繼電器工控主板ALTIUM設計硬件原理圖+PCB文件,2層板設計，大小為121x149mm，Altium Designer 設計的工程文件，包括完整的原理圖及PCB文件，可以用Altium(AD)軟件打開或修改，可作為你的產品設計的參考。主要器件型號列表如下：Library Component Count : 25Name Description----------------------------------------------------------------------------------------------------24LC02AJKG 按鍵開關AT89S52-P 8 位微處理器/40引腳CAP CapacitorCAPACITOR POL CapacitorCPDR 瓷片電容CRYSTAL CrystalD Connector 9 Receptacle Assembly, 9 Position, Right AngleDG 電感DJDR 電解電容GO 光耦Header 5X2 Header, 5-Pin, Dual rowJDQYCK 繼電器——1常開1常閉LED 發光二極管LM2576HVT-3.3 Simple Switcher 3A Step Down Voltage RegulatorMAX232 NPN NPN Bipolar TransistorPZ_2 排針——2PZ_3 排針——3RES2Res 電阻Res PZ_8 8位排阻SW-DPST Double-Pole, Single-Throw SwitchWY2JG 穩壓二級管ZL2JG 整流二極管
上傳時間： 2021-11-17
上傳用戶：kingwide
BTS7960大功率直流電機驅動板ALTIUM設計硬件原理圖+PCB文件,2層板設計，大小為66*76mm, 包括完整的原理圖和PCB工程文件，可以做為你的設計參考。主要器件如下：Library Component Count : 13Name Description----------------------------------------------------------------------------------------------------CPDR 瓷片電容Component_1_1 DG 電感DJDR 電解電容Header 2 Header, 2-PinLED 發光二極管LED3 Typical BLUE SiC LEDLM2576HVT-3.3 Simple Switcher 3A Step Down Voltage RegulatorPZ_2 排針——2RES2 Res 電阻TLP521-1WY2JG 穩壓二級管
上傳時間： 2021-11-21
上傳用戶：
AC220V轉DC(12V15W )電源板AD設計硬件原理圖+PCB文件，2層板設計，大小為100*55mm, ALTIUM設計的原理圖+PCB文件，可以做為你的學習設計參考。主要器件型號如下：Library Component Count : 24Name Description----------------------------------------------------------------------------------------------------2N3904 NPN General Purpose Amplifier2N3906 PNP General Purpose AmplifierBRIDGE1 Diode BridgeCON2 ConnectorCap CapacitorCap Pol1 Polarized Capacitor (Radial)D Zener Zener DiodeDIODE Diode 1N914 High Conductance Fast DiodeECELECTRO2 Electrolytic CapacitorFP103 FUSE-HHeader 2 Header, 2-PinINDUCTOR2 NMOS-2 N-Channel Power MOSFETPC837 OptoisolatorRES2-B Res Varistor Varistor (Voltage-Sensitive Resistor)T TR-2B TRANS1UCC28051 Volt Reg Voltage Regulator
上傳時間： 2021-11-21
上傳用戶：kent
