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Bot Robo Tanker Sound Detector


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Bot Robo Tanker Sound Detector

  2. 2. AIM Generally, Rescue People cannot enter into some parts / places of the war field or in the earth quake affected areas due to the situations aroused. But actually speaking 1. Some people may be alive in that field(s) 2 Some people may be in the unconscious status 3.Some people may be injured / affected badly and cannot move around To over come this, or to avoid such unwanted situations,are going to develop an Alive Human Being Detector using PIR sensor and live working model
  3. 3. ABOUT THE PROJECT In this project, we will have the Robot model, which will roam around the war field / Earth quake affected area, which has a free forward / Reverse and full 360 degree movement, to move into the war filed / earth quake affected area, to find out the Alive or Survived Human being(s) . The Robot will have the PIR sensor, which will help to detect the alive human beings, it consists of an IR based human radiation sensor, which picks up signals from human body radiations and gives a signal output. The human body radiates infrared waves with wavelengths of 8 to 12 micrometers. Whenever any human being comes in the vicinity of the system (upto 1m) the IR system gives the Signal
  4. 4. ABOUT PROJECT…. The Movement of the Robot can be controlled from the Remote location through a Remote Controller / Remote Landline / Mobile phone. The Robot also has a wireless RF Transmitter and sends the message to the Remote Location whenever it finds any alive human. The RF Frequency Range is 433.92 MHz, ISM band with AM and High Performance SAW based architecture with a maximum range of 100 feet at 4800 BPS data rate.
  5. 5. ABOUT THE PROJECT In this Project, we are building a Smart Security Robot. We are going to build the live working Model, which will have the following features 1. Live Working Mechanical Model of the Robot 2. Wireless TX / Rx with 433.92 MHz, ISM Band, 4 MHz Bandwidth, for Secured Communication 3. IR SENSOR – Obstacle sensing 4. PIR SENSOR – Human being sensing 5.SOUND DETECTOR – Sound sensing
  6. 6. MAIN MODULES Micro controller board Opto coupler with stepper driver board Sensor – PIR Sensor – Fire / Flame, Temperature, Intruder ,sound detector Wireless Tx / Rx Mechanical Model Features
  7. 7. Block diagram PC side ALIVE HUMAN BEING DETECTOR Wireless RS 232 MC RX ALARM
  9. 9. COMPONENTS Atmel controller Stepper motor and driver Encoder Decoder Max 232 Pir sensor Intruder sensor Sound detector Fire sensor Power supply board buzzer
  10. 10. BLOCK DIAGRAM EXPLANATION PC SIDE In pc side we have wireless receiver module ,controller, pc. Receiver is connected with micro controller. Controller is connected with pc.
  11. 11. BLOCK EXPLANATION FOR ROBOT SIDE In this block diagram we have stepper motor which is used for the movement of the tanker robot. For forward and reverse movement e are using one stepper motor and left,right movement we are using another stepper motor.
  12. 12. BLOCK EXPLANATION FOR ROBOT SIDE We have a opto coupler driver which is used to drive the stepper motor. We have PIR sensor to detect human being,IR sensor to detect intruder, LDR to detect fire, thermister to detect temperature.
  13. 13. BLOCK EXPLANATION FOR ROBOT SIDE Relay driver is used to drive the relay. Relay is used to control the stepper motor. We have wireless TX module to transmit the data to the remote location using the radio frequency.
  14. 14. CIRCUIT EXPLANATION FOR PC SIDE We are using atmel controller. Max 232 is connected with one of the port of the controller. Max 232 is used to interface pc and controller . Max 232 converts TTL logic to RS 232 logic and vice versa.
  15. 15. CIRCUIT EXPLANATION FOR PC SIDE Decoder is connected in one of the port of the controller. Decoder decodes the data and give it to controller. Buzzer is connected in one of the port of the controller. Which raise an alarm whenever a message is received.
  16. 16. CIRCUIT EXPLANATION FOR ROBOT SIDE ENCODER is connected in one of the port of the controller. Encoder encodes the data given by the controller and wirelessly to the remote location. Stepper driver is connected in one of the port of the controller.
  17. 17. CIRCUIT EXPLANATION FOR ROBOT SIDE Relay driver is connected to one of the port of the controller. Relay is connected in one of the port of the controller. Pir ,ir sensor ,LDR ,thermistor are connected in one of the port of the controller.
  18. 18. MICROCONTROLLER 4K Bytes of In-System Re programmable Flash Memory • Fully Static Operation: 0 Hz to 24 MHz • Three-level Program Memory Lock • 128 x 8-bit Internal RAM • 32 Programmable I/O Lines • Two 16-bit Timer/Counters • Six Interrupt Sources • Programmable Serial Channel • Low-power Idle and Power-down Modes
  19. 19. The AT89C51 is a low-power, high- performance CMOS 8-bit microcomputer. It has 4Kbytes of Flash programmable and erasable read only memory (PEROM). The device is manufactured using Atmel’s high- density nonvolatile memory technology It is compatible with the industry-standard MCS- 51 instruction set and pinout.
  20. 20. POWER SUPPLY UNIT The major blocks of the power supply units are : Step down transformer Rectifier Diodes Filters Voltage regulators
  21. 21. STEP DOWN TRANSFOMER The instrument transformer for power supply in this project is to convert AC from 230V to required low level such as 5V AC. This transformer apart from stepping down AC voltage, gives isolation between power source and power supply circuitries.
  22. 22. RECTIFIER UNIT: Diode contains two electrodes called the anode and the cathode. A diode has the property that will let electron flow easily in one direction. As a result when AC is applied to a diode, electrons only flow when the anode is positive and cathode is negative.
  23. 23. Filter Unit After pulsating DC has been produced by our rectifier, it must be filtered in or for it to be usable in a power supply. Filtering involves the ripple frequency. The power supply unit employed in this project used 7805 voltage regulator (for positive output voltages) and a 7905 regulator, (for negative output voltages).
  24. 24. regulator The voltage regulators play an important role in any power supply unit. The primary purpose of a regulator is to aid the rectifier and filter circuit in providing a constant DC voltage to the device. Power supplies without regulators have an inherent problem of changing DC voltage values due to variations in the load or due to fluctuations in the AC liner voltage. With a regulator connected to the DC output, the voltage can be maintained within a close tolerant region of the desired output. IC7812 and 7912 is used in this project for providing +12v and –12v DC supply.
  25. 25. RELAY DRIVER The electromechanical relays are based on the comparison between operating torque/force and restraining torque/force. The VA burden of such relays is high. The characteristics of these relays have some limitations. Each relay can perform only one protective function.
  26. 26. Stepper motor A typical single axis stepper system consists of a stepper controller, a motor drive, a motor (with or without gearbox), and a power supply. A stepper is typically commanded by two digital inputs: a digital pulse train and a direction bit. The stepping drive and motor is used primarily for position control. And unlike all other motor types, stepper motor is moved in "steps" (just one step per one command pulse) and will hold at its present position if no command pulses are received.
  27. 27. Stepper driver The stepper driver logic consists of 1. buffer 2. opto-coupler, 3. pre-driver 4. driver. Buffer Buffer interfaces 8255 with high-level circuits(such as MOS.) for driving high current loads.
  28. 28. Stepper driver… Opto-coupler: It consists of opto-emitter and phototransistor in opto-emitter exists infra red radiation which in turn drives the phototransistor. Pre-driver: We cannot directly couple the TIP122 (NPN) to the opto-coupler since it requires large current for driving. We use the driver SL100 to boost the current level. Driver: The main principle of the driver is to amplify the current. It amplifies the 50mA current to2A, which is needed to drive the motor.
  29. 29. PIR SENSOR PIR sensors are motion detectors, to detect human being. This sensor detects changes in infrared heat, caused by human movement and immune to pets
  30. 30. PIR SENSOR FEATURES Max. Coverage Range -30 x 30 ft Voltage - 9 to 16 VDC Detector - Dual element low-noise pyroelectric sensor Operating Temperature--14°F to 122°F
  31. 31. FIRE SENSOR LDR’s are employed to sense the Fire, Here we use powerful and sensitive "LDR" (Light Dependent Resistor) for the flame detection. Normally LDR senses all the lights. But in our case we have to sense only Blue and Yellow flame and reject sunlight and other luminaries. We have provided neces-sary circuit to reject ambient and luminaries lightings and senses only desired flame coloring. We are using simple and effective potential divider to find out flame
  32. 32. ULTRA SONIC SENSOR Ultrasonic occupant sensors activate a quartz crystal that emits ultrasonic waves throughout space . The unit then senses the frequency of the reflected waves. If there is motion the reflected waves frequency will shift slightly.ultrasonic sensors operate at frequencies that are above human sensitivity.
  33. 33. RS 232 The most common communication interface for short distance is RS-232. RS-232 defines a serial communication for one device to one computer communication port, with speeds upto 19,200 baud. Typically 7 or 8 bits (on/off) signal are transmitted to represent a character or digit.The 9 pin connector is used.
  34. 34. MAX 232 It has four level translators, two of which are RS232 transmitters that convert TTL CMOS input levels into + 9V RS232 outputs. The Max 232 is a dual RS-232 receiver / transmitter that meets all EIA RS232C specifications while using only a +5V power supply. It has 2 onboard charge pump voltage converters which generate +10V and –10V power supplies from a single 5V power supply.
  35. 35. MAX 232 These receivers have a nominal threshold of 1.3V, a typical hysterics of 0.5V and can operate upto + 30V input. 1. Suitable for all RS232 communications. 2. +12V power supplies required. 3. Voltage quadruple for input voltage up to 5.5V (used in power supply Section of computers, peripherals, and modems). Three main sections of MAX232 are 1. A dual transmitter 2. A dual receiver 3. +5V to + 10V dual charge pump voltage converter.
  36. 36. ENCODER The TP 5088 is a low threshold voltage_ field- implanted_ metal gate CMOS integrated circuit' It interfaces directly to a standard telephone keypad and generates all dual tone multi-frequency pairs required in tone-dialing systems' The tone synthesizers are locked to an on-chip reference oscillator using an inexpensive 3'579545 MHz crystal for high tone accuracy' The crystal and an output load resistor are the only external components required for tone generation' A MUTE OUT logic signal_ which changes state when any key is depressed_ is also provided‘.
  37. 37. FEATURES 3'5V–10V operation when generating tones 2V operation of key scan and MUTE logic Static sensing of key closures or logic inputs On-chip3'579545 MHz crystal-controlled oscillator Output amplitudes proportional to supply voltage High group pre-emphasis Low harmonic distortion Open emitter-follower low-impedance output SINGLE TONE INHIBIT pin
  38. 38. DECODER In this Project the main operation is performed by this IC Cm8870 i.e., the main DTMF to BCD Conversion is done thro this IC only. Let us know the Features and Functions of this IC Features Full DTMF receiver Less than 35mW power consumption Industrial temperature range Uses quartz crystal or ceramic resonators Adjustable acquisition and release times
  39. 39. RF TRANSMITTER AND RECEIVER This is the RF based Transmitter and Receiver module, which can facilitate the remote applications. The process using the Radio - Frequency spectrum for Transmitting and Receiving Voice, Data and Video signals by which information(s) are shared is known as Wireless Communication . Radio Frequency - A range of electromagnetic frequencies above sound and below visible light, generally in the 30Khz to 300GHz range, used for all broadcast transmission including AM and FM radio, television, short-wave, microwave, and satellite transmissions.
  40. 40. RF TRANSMITTER AND RECEIVER FEATURES Complete super regenerative RF Transmitter & Receiver Module operating @ 433.92 MHz Compact in Size & Model No External Components & No tuning is required. High Performance SAW based architecture with a maximum range of 100 feet @ 4800 bps data rate. Low Power Consumption RF Receiver Module - 433.92 MHz (FT-COM-RX2), Bandwidth–4 MHz RF Transmitter Module -433.92 MHz (FT-COM- TX2), Bandwidth – 4 MHz
  41. 41. CIRCUIT EXPLANATION All the sensor are connected to one of the port pin of controller. To drive the stepper motor we have relays.these relays are connected to one of the port pin of the controller. Opto coupler stepper driver circuit is connected to the one of the port of the controller. Encoder is connected with one of the port of the controller.
  42. 42. Explanation….. Stepper motor is used for forward ,reverse,left ,right movement of the robo model. Whenever any sensor detects corresponding signal from the sensor is given to micro controller. Micro controller encodes these data send wirelessly to the remote unit. In receiver side this data will be received by rx receiver. Decoder in the circuit is decodes the data and give it to controller
  43. 43. Explanation…. Micro controller send this data to the pc through max 232. Max 232 coverts TTL logic to RS 232 logic. In pc we have written visual basic code . Received data will be displayed on the pc.