a traffic light control system modelingand design

... configuration: Body slip rate = Measured yaw rate – Stable yaw Stable yaw = Lateral acceleration/Vehicle speed The body roll angle is estimated based on the transfer function relating the lateral acceleration ... constrained signals The tool applies optimization techniques that rapidly iterate over the parameter space of the PID gains to arrive at optimal values that will allow the controller to satisfy ... rates Some states of the vehicle are estimated based on available sensor data just as they would be in an actual vehicle controller The vehicle speed is estimated based on the averaged wheel speeds...

Ngày tải lên: 24/07/2014, 09:44

... completely saturated, and many new sensor data are read during one transmission Because the payload size of the packet frame is one, only the latest read data can be sent for the next transmission; ... the average latency of packets can attain 7.0 ms, Payload is 10 samples which mean that the first sample data should wait 17 ms to be received by the coordinator This latency of sensor data is ... as IDEA1_HW) and IDEA1 without hardware information (IDEA1_NOHW) In the last simulation, all the timing parameters about the hardware operations are set to 0, and thus, they not consume any time...

Ngày tải lên: 20/06/2014, 22:20

... signals are also studied, as they are the vital part of any traffic signal control scheme 2.1 Traffic flow On a stretch of road used by vehicles, there are many parameters related to traffic that ... (such as agents I5 and I6), these teams are variable and agents can switch teams as in seen in situations A and B 38 After a certain amount of time, each agent evaluates its need for cooperation ... increases This creates a growing strain on available road networks, as it becomes harder and harder to maintain a smooth flow of traffic, high speed and low delays, as well as to avoid accidents...

Ngày tải lên: 16/09/2015, 12:35

... separate data area of these database systems means that they not need the segment cleaning mechanisms of the Sprite LFS to reclaim log space The space occupied by the log in a database system can ... the most up to date ‘‘truth’’ about the state of the data on disk The main difference is that database systems not use the log as the final repository for data: a separate data area is reserved ... simulates the actions of a cleaner until a threshold number of clean segments is available again In each run the simulator was allowed to run until the write cost stabilized and all coldstart variance...

Ngày tải lên: 12/09/2012, 15:05

... TCE degradation were examined MATERIALS AND METHODS TCE (99+%) was obtained from Aldrich Chemical Co, and the TiO2 used was Degussa P-25, which was mostly anatase and had a BET surface area of 50-m2/g ... GC/MS analysis; and were dichoacetic acid (DCAA), the methyl esters of dichloroacetic acid (DCAA) and trichloroacetic acid (TCAA), respectively They were confirmed by comparison of mass spectra and ... TiO2 dosage - 41 - These results indicate that a 0.2 wt% TiO2 loading is sufficient to harvest all the incident light, and that there is no advantage to a loading above this value Additionally,...

Ngày tải lên: 05/09/2013, 08:40

... than one bit per baud Baseband and broadband The principle characteristics of base-band and broadband systems are listed in Table BASEBAND Digital signalling Entire bandwidth consumed By signal ... COMMUNICATIONS IN A PROCESS CONTROL SYSTEM by GR MacKenzie, AEG Communication has become a major part of any process control automation system Today PLC communication is as much for data acquisition ... performance, and is generally cheaper The maximum transmission time for any network configuration can be calculated A classic rule for any PLC application is that repeatability is more important than...

Ngày tải lên: 25/12/2013, 08:50

... CONTROL SYSTEM DESIGN Graham C Goodwin1 Stefan F Graebe2 Mario E Salgado3 Valpara´ ıso, January 2000 Centre for Integrated Dynamics and Control University of Newcastle, NSW 2308 AUSTRALIA OMV ... OMV Aktiengesellschaft Department of Optimization/Automation Schwechat, AUSTRIA Departamento de Electr´nica o Universidad T´cnica Federico Santa Mar´ e a Valpara´ CHILE ıso, Dedicated, in thankful ... a “virtual laboratory” A secondary advantage of PREFACE xxvii having the case studies gathered in one place on the web page is that real control problems usually bring together many aspects and...

Ngày tải lên: 01/01/2014, 18:48

... function as a complete home alarm system, but merely illustrates that the home automation system can interface with a larger existing alarm system The alarm interface unit provides the home alarm system ... that carries any amount of noise, it is possible to transmit data reliably (that is, with an error probability of zero) as long as the data rate is below a certain limit known as the channel capacity ... Signal attenuation on a powerline across the 0-300 kHz frequency band Figure taken from Chan and Donaldson [3] From the above analyses of noise and attenuation it is clear that choosing a good carrier...

Ngày tải lên: 19/01/2014, 20:20

... etc A QC can be mathematically defined as a random variable, which is a function that takes values from a population or distribution Denote a QC as random variable x If a population Ω only contains ... variation change Notice that SPC charts are designed to detect assignable causes of variation as indicated by mean or standard deviation shifts and at the same time tolerate the chance variation as shown ... statistical control charts for monitoring process variance changes Johnson and Leone (196 2a, 1962b) and Page (1963) later proposed CUSUM charts based on sample variance and sample range As an alternative,...

Ngày tải lên: 23/01/2014, 01:20

... performance, and is generally cheaper The maximum transmission time for any network configuration can be calculated A classic rule for any PLC application is that repeatability is more important than ... devices and PLCs at up to 1200 m using twisted pair cable and standard connectors A few European PLC manufacturers immediately adopted this standard This Bit Bus, however, was also seen to have a major ... and broadband systems are listed in Table BASEBAND Digital signalling Entire bandwidth consumed By signal Bi-directional Bus topology Distance up to a few kilometres BROADBAND Analog signalling...

Ngày tải lên: 25/01/2014, 05:20

... cooling system design analyzed via boundary element models In this paper, a fast quasi-global optimization approach based on a hybrid combining the simulated annealing and the DFP method, namely SA–DFP, ... numerical implementation Although the cycle-averaged approach can predict well the overall performance of the cooling system, a more accurate transient analysis can enhance the understanding ... Qiao / International Journal of Mechanical Sciences 48 (2006) 430–439 where L and U are a lower and an upper triangular matrix, respectively Given a change Dx in the design variables so that...

Ngày tải lên: 12/02/2014, 22:20

... MT systems must focus on whether goals are communicated, rather than whether they are achieved Goals of a Task-Based Evaluation Methodology for an MT System The goal of a task-based evaluation ... Communication and Technology, pages 1423-1426 M.Walker, D.J.Litman, C .A. Kamm, and A. Abella 1997 PARADISE: A framework for evaluating spoken dialogue agents Technical Report T R 97.26.1, AT and T ... translation task We need to be able to account for the average goal complexity per speaker turn in a dialogue and scale the above metric accordingly; if dialogues A and B have the same score according...

Ngày tải lên: 17/03/2014, 07:20

Ngày tải lên: 28/03/2014, 15:20

... effective parasitic inductance and capacitance seen by a single line Since the transmission line parameters vary with data patterns and are essential for accurate timing and signal integrity analysis, ... system and to calculate trace impedances, propagation velocity, and all self and mutual parasitics The outputs are typically matrices that represent the effective inductance and capacitance values ... through a long square pipe This is known as electrical wave propagation Just as the waterfront will travel as a wave down the pipe, an electrical signal will travel as a wave down a transmission...

Ngày tải lên: 05/04/2014, 23:04

Ngày tải lên: 24/04/2014, 16:00

Ngày tải lên: 27/05/2014, 03:44

... total circuit and incidental noise is random with a worstcase peak to peak spread of 3.87 mV As the negative and positive excursions are relatively uniform about a mean, EURASIP Journal on Advances ... the case of a hand-held instrument, allows for a “snapshot” of the data stream to be made manually at a time chosen by the operator Use of this additional facility does not interrupt the data stream ... digital format has occurred Achieving reliable analogue amplification and filtering at the ultra low sensor outputs encountered proved to be unproductive in that every analogue stage produced and added...

Ngày tải lên: 22/06/2014, 01:20

... has been an Associate Professor with UPC, where she teaches and coordinates graduate and undergraduate courses in statistical signal processing, analog and digital communications, mathematical ... the transmitter can have an accurate channel estimate by means of a feedback channel, for example Currently, there are several standards in which this assumption is valid Among them, some examples ... Barcelona, Spain From 1971 to 1973, he was a Research Assistant at the UPM From 1973 to 1979, he was a Teacher Assistant, and from 1979 to 1982, he was an Associate Professor at the UPB He was a Fullbright...

Ngày tải lên: 23/06/2014, 00:20

... This data-processing rate is fast enough for realtime data protection in multimedia data transmission applications The proposed signal security system is suitable for both software and hardware ... the silicon area normalized to a 0.35 µm NArea = DRPA = Area (Technology/0.35)2 Data − rate NArea Mbps/mm2 (20) (21) A New Signal Security System for Multimedia Data Transmission ctrl vo 1301 ... Bifurcation parameter µ Analysis of computational complexity If the TDCEA is simulated by using C language, just the basic bitwise operators “ ” and “ ” can accomplish the p,r q,s mappings Rotate...

Ngày tải lên: 23/06/2014, 01:20

... commercial control system design CAD packages that are now readily available One of these CAD packages is MATLAB, which has become a valuable tool for a control engineer and is illustrated in ... Cascade Lag Compensator 11.4 Design Example: Cascade Lag Compensation 11.5 Cascade Lead Compensator 11.6 Design Example: Cascade Lead Compensation 11.7 Cascade Lag-Lead Compensator 11.8 Design ... physical control systems by using mathematical and block-diagram models common to all There are many computer-aided design (CAD) packages (e.g., MATLABÕ [see App C], Simulink, and TOTAL-PC) available...

Ngày tải lên: 04/07/2014, 05:28