DESIGN AND FABRICATION

Transcription

1 Volume 116 No , ISSN: (printed version); ISSN: (on-line version) url: ijpam.eu DESIGN AND FABRICATION 1 V.G.Vijaya, 2 Dhanasekar.J Assistant Professor 1, 2 Department of Mechatronics Engineering, BIST, BIHER, Bharath University, Chennai. vijaya.mt@bharathuniv.ac.in Abstract: In the current scenario, home security is ensured by keeping guards outside the house. But the problem with the guards is reliability, work performance etc. The robot developed in this paper ensures a good range of security with a docking system for recharging itself. The robot runs with a LPC2148,a person detection sensor with a wireless power transfer unit for recharging the robot. To built communications between robot and the monitoring unit are accomplished through IEEE communication interface. To perform surveillance, at the initial stage itself the path of the robot has to be fed. The camera in this robot captures the image of any human or any interference that enters into surveillance region. To reduce the energy consumption of robot automatic recharging of the robot takes place using the docking system. In this paper, to charge the robotic unit a wireless power transmission method is used. To assure that robot is in the power transmission region the ultrasonic signal received by the server is helped Keywords- keil c compiler, orcad capture cis, charging dock, surveillance, pir sensor 1. Introduction Surveillance is mandatory in all aspects of life. Usually guards have been appointed to serve the purpose. Nowadays Robot replaced the human in security purpose and its so cheap to appoint so. The major problem in using the robot is,it is to be recharged often. If the robot is appointed in reserved areas for surveillance the recharging unit should be attachéd to it[1-4]. Also human is required to recharge the unit. To overcome this problem, a wireless recharging circuit is been projected.the monitoring or surveillance is done based on the heat emitted by the object or human exposed to the surveillance region. To implement wireless transmission zigbee communication is been used[5-8]. Usually radiometer type of sensors are been used to detect the presence of human or any other interference. Because if the robot has to be used for military application, it can t be placed near to the object.the sensors determines the presence of human by the thermal heat radiation like black body radiation from the object under surveillance.if the presence is been sensed the camera capture the picture of the human in any direction. In order to cover the entire room, the robot module is designed to turn in various angle with manual and automatic control[9-10]. Since robot is been used,to charge it oftenly it can t be moved from the place now and then rather due to the advancement in the wireless communication,a docking system can be built in adjoint with robot to charge it.zigbee technology is the recent advancement in the field of wireless communication to ensure wireless power transmission using recharging of the robot can be done[11-13]. 2. Proposed Model The prototype system consists of two sections namely Surveiilance section and the Control room section.in the former section, Passive IR motion detectors are used to provide an indication that human has entered into the surveillance section and a signal to the alarm panel to generate a beep in response to the detection. IR sensors are the type of sensors,that are the indicative of motion of the object. The alarm panel responds to the receipt of the human indication so as to cause an alarm condition to occur. In a war field,if a person or motor vehicle enters the surveillance or monitored area, PIR motion detectors are commonly used in conjunction with different parts to ensure the presence. If someone enters into the secured places, immediately the robot will send a response signal to the control room section through wireless communication.thereby the alarm panel produces an alarm signal to alert the persons in the control section.the main advantage of the system are,it ensures the high security,alert and protection etc[14-16]. 307

2 3. Working Of The Proposed Model The proposed model consists of sensors like PIR and ultrasonic sensor. To assure security the above two sensors gives input to the processor.once the input is received from the sensors, the processor processes the received signal and produces an actuation signal to the motor through the driver circuit to turn into the direction from which the signal is received. To transmit the signal to the server section a zigbee module is connected with the robot section.thus by wireless communication the input signal is transmitted to the processor[17-19]. During the survelliance,if the primary coil is coupled with the secondary,a flux is created in the secondary makes the primary to get charged.when the robot receives signal from the microcontroller through the zigbee unit, it process the signal and starts moving forward towards the direction from which the signal is received. The PIR sensor is actuated by taking supply from the charging section and the heat radiation by the human being. It gives the buzzer signal to the control room to assure the presence of unauthorized person. After getting the signal the robot captures the image using UART camera mounted on it[20-21]. The adjoint work of robot is to make to move forward towards the next station called the recharging section. The next station will be detected by the ultrasonic sensor.once the sensor receives the signal it releases the sound signal within the station and reflect back to the sensor.with the help of that the robot could recognize the secondary station.once the secondary section is detected the robot generates a U turn and comes back to the primary station for charging itself [22-24]. 4. Main Applications 5. Model Snapshots Figure 5.1. E Surveillance Robot Section Figure 5.2. Robot Recharging Dock Section 6. Conclusion The Model can be used in main application that replaces the humans in security.if this system is implemented the amount spent for salary can be reduced or for training the employee. Not only the security purpose will be served but also the safety of human beings are also ensured with the help of this robot section.the main application areas are, Defence, Home security etc[25-30]. In this paper, design and implementation of a surveillance robot with automatic docking and recharging capabilities for home security or reserved area is presented. The docking method proposed is based on the self-localization of the robot and the infrared detectors. If the onboard battery is too low, the robot can navigate back to the docking station for recharging operations. The prototype robot achieved a success rate of 90% after 60 different docking attempts. The to and fro motion actuated by the processor enables the robot to cover the entire surveillance area and also the camera fixed in it captures the presence of human who enters into the surveillance area. The future enhancement is to make the system too compact for recharging capability and to use the solar energy for charging the robot. 308

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