SMART CONTROL SYSTEM IN TRAFFIC ANALYSIS USING RTK-GPS STANDARDS. Dr. S Arulselvi 1, Dr.M.Sundararajan 2.

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1 Volume 116 No , ISSN: (printed version); ISSN: (on-line version) url: ijpam.eu SMART CONTROL SYSTEM IN TRAFFIC ANALYSIS USING RTK-GPS STANDARDS Dr. S Arulselvi 1, Dr.M.Sundararajan 2 1 Associate professor, Department of Electronics and Communication Engineering, Bharath University. 2 Professor, Department of Electronics and Communication Engineering, Bharath University. deanresearch@bharathuniv.ac.in Abstract: In this paper, a 16x2 LCD display is used. It is very cheap and shows the actual latitude and longitude position of the vehicle. L293D motor driver is used. It has on board heat sink for better performance and can drive up-to 36V and total DC current of 600mA. I 2 C bus is used for LCD display. It is a low bandwidth short distance protocol. It provides a single way talk between ICs by using two wires for serial clock and serial data and both the lines being bi-directional. Here RF communication is used as link between the danger zone and the robotic vehicle. GPS is normally referred to as Global Positioning System. When the vehicle is travelling from one place to another it can be monitored by this GPS. This GPS is mounted on our robotic vehicle and it will provide the latitude and longitude position of the vehicle. So these are the detail explanation of the building blocks. Now let us see about the units which are mentioned above. 1. Introduction The vehicle unit is nothing but a car robot. An MRF24J40MA RF Transceiver is mounted on our vehicle[1-7]. This communicates with the zone unit and it will help the vehicle to get slowed down when the school or accident zone arrives. This work is carried out by the process of WPAN. The vehicle when it is driving will have its latitude and longitude position. The transceiver in the school zone transmits the signal; it will be received by the transceiver in the vehicle. When the school or the accident zone comes up the signal matches up and the vehicles will be automatically slowed down and thus the pedestrians crossing the road will be safer[8-11]. The unit function test and compatibility test are performed and the driving robot suitable to various differential kinds of vehicles developed based on RTK- GPS (real time Kinematic- Global Positioning System) speed control and path following algorithm is used to keep the velocity of vehicle from overshoot of vehicle speed. Driving robot consists of steering wheel, gear selection, accelerator and brake pedal robots[12-19]. V error is the error velocity using reference velocity V ref compared with current car velocity V car. Driving robot controls acceleration by pedal position to maintain the velocity. Acceleration error is used in compensation element with gain K a. Control output U inc determined by both velocity error and acceleration error[20-26]. V error=v ref - V car A error=a ref - A car U inc = (K p + K d ).V error - K d.v olderror+k a.aerror For the path following Candidate zone Figure 1. vehicle unit with GPS 2. Algorithm P represents paths position candidate zone and next target position of vehicle. R represents reference position in the storage path of controller. d angle of candidate zone D1 is minimum distance and D2 is maximum distance. 349

2 The steering Angle and direction of steering angle is calculated as follows θ ) d (ref) = sign ( Pt - uxptpw + 1 (Pt uptxprut) ) The minimum distance and maximum distance is calculated as given below[27-30]. D1= Vt.TTAD1 D2=Vt.TTAD2 Vt vehicle speed at time t. TTA Time of access Distance between front axle and real axle of vehicle is denoted as L. The angular velocity is calculated as follows. =Vt.sind / L This is how the speed of the vehicle is slowed down when the vehicle reaches the accident or school zone. 3. Test Setup This Paper gives the representation of Intelligent Traffic Routing via a WSN. The initial and crucial rudiments of this device are the WS nodes or motes consisting of sensors & transmitter. The sensors intermingle with the physical surroundings approach motors charisma or deficiency whilst the transmitter sends the sensors records to the primary microcontroller. This gadget involve the 4X 2 array of sensor nodes in every method. This indicates four ranges of Traffic and two lanes in every manner. The sensors are ultrasonic or an Infrared largely base optical sensor which transmits repute primarily based on being there of automobile close to it. The sensor nodes broadcast at distinctive time hiatus throughh protocol called ZigBee to the valuable microcontroller positioned at every intersection. The Microcontroller gets the sign and calculate which avenue and which lane has to be agreed inexpert signal based completely on the compactness of Traffic. The organizer makes use of the mention and deliberate algorithm to perform the Intelligent Traffic routing. In this article, the number one aim is jointly the particulars of changing emergency automobiles based entirely on WSN to provide them a fresh direction till their location and traffic alert require to switch repeatedly to nearby a clear manner for these tragedy automobiles.[8] Speed:- There are 3 path on the street. They are separated because of their pace fees like 1st tune is forty-60 pace, second music is 60- eighty speed and the third music is eighty-a hundred pace. If any car of two nd track break the guideline and it arrive into 1st tune then because of sensor a horn generate on that car and different horn create in different vehicles to alert. So, they can keep their selves from the ruin regulation automobile. Intersection Control Agent:- According to this[5] The machine prototype take in 4 elements; 1) the wireless sensor network, 2) intersection manage retailers (ICAs), 3) the actuators (i.e., visitors lights), and 4) environment (i.e., automobiles).. PIC microcontroller placed in the car will receive that signal and control the car speed using PWM (Pulse Width Modulation) technique. PWM is used to control the car speed by varying the duty cycle of the control signal. To increase the car speed, duty cycle will be reduced and to decrease the car speed, the duty cycle will be increased. By increasing the duty cycle, the car speed will be reduced below 30Km. For the crash zone, the car speed should be limited to 40Km. GPS (Global Positioning System) is installed inside the car to indicate the position of the car to owner and avoid theft. UART connects the GPS to PIC microcontroller placed inside the vehicle. UART (Universal Asynchronous Receiver Transmitter) is used for asynchronous transmission. PIC will transmit the position of car to LCD display through I 2 C network. PIC Microcontroller will give the output to LCD display in parallel manner. But LCD display will get the input in serial manner. To solve the problem the I 2 C network is used in serial in parallel out mode. Thus, by using RF communication and PIC Microcontroller we can detect the road signs and limit the car speed. 4. Conclusion The exceeding planned System for Automated Intelligent Traffic Control device routing using WSN is high quality to various present structures in this intense populace of automobiles. The WSN create a separate gadget at each juncture creation it simple to execute in the juncture having intense concentration of automobiles. It is likewise fee reasonably priced and does no longer require any machine inside the cars making it greater practical than current machine with first rate results. The utilize of a variety of structures of sensor nodes can be untouched based totally at the obligation and any category of sensor may be used primarily based on the probability of the vicinity. 5. Future Work In future we can additionally implement the systems like automatic car parking, drowsiness detection, blind spot detection and lane detection by using ARM Processor. References 350

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