The war field spying robot can be used on enemy territories for the purpose of spying or remote monitoring. This spying robot can be used at the time of war to collect and monitor the information from the terrorists at the far secure area, and safely create a map for the counter-attack. Let us have a brief information about how can we use a robot in the field of war for the purpose of spying. All that is required is a wireless camera fixed on the robot circuit which captures images and also records the videos of terrorists and transmits the data, which are collected by the receiver unit of the TV. We can design a simple prototype of this robot which can control remotely and the data transmitted by the camera can be monitored and analyzed on a TV.

War Field Spying Robot with Night Vision Wireless Camera

The hardware and software requirements of this project include 8051 series Microcontroller, DC Motors, Motor driver IC, Push Button, Diodes, Resistors, Capacitors, Wireless Camera, Bluetooth Device, Keil compiler, Language: Embedded C or Assembly and Android Application.

Microcontroller

The microcontroller is a smaller computer; it has on-chip RAM, ROM, I/O ports. The features of this microcontroller include the following.

• 8K Bytes of In-System Programmable (ISP) Flash Memory
• 4.0V to 5.5V Operating Range
• Fully Static Operation: 0 Hz to 33 MHz
• 256 x 8-bit Internal RAM
• 32 Programmable I/O Lines
• Three 16-bit Timer/Counters
• Eight Interrupt Sources
• Full Duplex UART Serial Channel

What is Called Android?

Android is an open-source operating system which means that any manufacturer can use it in their phones free of charge. It was built to be truly open. For example, an application can call upon any of the phone’s core functionality such as making calls, sending text messages, or using the camera. Android is built on the open Linux Kernel. Furthermore, it utilizes a custom virtual machine that was designed to optimize memory and hardware resources in a mobile environment.

What is an Android Application for Mobile Phones?

An android app is meant for phones with android based operating systems. They can be downloaded from the Android app Market which is pre-loaded on every android phone. Blue control APP and Bluetooth SPP APP are some examples.

The open source operating system is easily changed, hacked, manipulated, and molded to fit whatever functionality you had in mind. Found on all platforms for all prices depending on what hardware and software version you are interested in. The battery is usually replaceable.

Android Application Operated Bluetooth

The Android platform includes support for the Bluetooth network stack, which allows a device to wirelessly exchange data with other Bluetooth devices.The application framework provides access to the Bluetooth functionality through the Android Bluetooth APIs.

Features of Bluetooth

• Super simple and easy way to interface using Bluetooth stack.
• 3.3V device with standard 5V DC Power source.
• Can also support SPI Protocol, pins are made available.
• Low power consumption, Low cost.
• Has high-performance wireless transceiver system
• Can be used to interface with PC, Mac or Android phones/tablets.
• Generic Default Visibility at Software side: HC-06 or Linvor
• Default Pairing code is not ‘0000’ but ‘1234’.
• Please use Baud Rate with 8-N-1 connectivity from another device.
• Works with any microcontroller with Serial connectivity.

RF Remote Control

• The circuit uses HT 12E, HT 12D encoder, and decoder.
• 433MHz ASK transmitter and receiver is used for the remote control.

Features of RF

• Range in open space (Standard Conditions) 100 Meters
• RX Receiver Frequency: 433 MHz
• RX Typical Sensitivity: 105 Dbm
• RX Supply Current: 3.5 mA
• RX IF Frequency: 1MHz
• Low Power Consumption
• Easy For Application
• RX Operating Voltage: 5V
• TX Frequency Range: 433.92 MHz
• TX Supply Voltage: 3V ~ 6V
• TX Out Put Power: 4 ~ 12 Dbm

RF Encoder & Decoder

• The HT12E Encoder ICs are series of CMOS LSIs for Remote Control system applications. They are capable of Encoding 12 bit of information which consists of N address bits and 12-N data bits.

• The HT12D ICs are series of CMOS LSIs for remote control system applications.

• These ICs are paired with each other. For proper operation, a pair of encoder or decoder with the same no.of address and data format should be selected.
• The Decoder receives the serial address and data from its corresponding decoder, transmitted by a carrier using an RF transmission medium and gives output to the output pins after processing the data.

Wireless Camera

• The wireless camera detects and scans all the common video frequencies, usually somewhere between 50 MHz and 30 GHz, within a certain radius.
• It then allows the user to monitor what is being broadcast on those frequencies, if the signal is strong enough, the wireless camera detectors usually display the images.

Motor Driver L293D

• L293D is a dual H-bridge motor driver integrated circuit (IC).
  Motor drivers act as current amplifiers since they take a low-current control signal and provide a higher-current signal.
• This higher current signal is used to drive the motors.
• L293D contains two inbuilt H-bridge driver circuits. In its common mode of operation, two DC motors can be driven simultaneously, both in forward and reverse direction.

Operation of Motor Driver

• L293D has 2 set of arrangements where one set has input 1, input 2, output 1 and output 2 and another set has input 3, input 4, output 3 and output 4, according to block diagram if pin no 2 & 7 are high then pin no 3 & 6 are also high.
• If enable-1 and pin number 2 are high leaving pin number 7 as low then the motor rotates in the forward direction.
• If enable-2 and pin number 10 are high leaving pin number 15 as low then the motor rotates in the forward direction.
• If enable 1 and pin number 2 are low leaving pin number 7 as high then the motor rotates in reverse direction.
• If enable 2 and pin number 15 are high leaving pin number 10 as low then the motor rotates in the forward direction.

Advantages

• Streaming of Video without visible light
• Inbuilt option to switch ON & OFF IR lights when required

Disadvantages

• The limited distance of operation(50ft)
• The video is Streaming not recording

Project Working

The project is designed to develop a robotic vehicle using android application for remote operation. This robot along with camera can wirelessly transmit real-time video with night vision capabilities. This is kind of robot can be helpful for spying purpose in war fields.

The whole path that the robot traverse is being seen by the wireless night vision camera that is placed on the robot and accordingly the video signals are sent by the camera for the direction it traversed. Remote operation is achieved by any smart-phone/Tablet etc., with Android OS, upon a GUI (Graphical User Interface) based touch screen operation.

From the above information, finally, we can conclude that this robot is used for the observation of human activities in the war field o in order to reduce infiltrations from the opponent side. The robot comprises of night vision wireless camera which can transmit the information of the war field in order to stop any harm to human life. The robot will provide a suitable machine for the security sector and will also stop illegal activities. It will assist all the military people and armed forces to know the situation of the territory before entering it.

 

Nowadays, smartphones based on Android OS are definitely the most famous gadgets.These mobile phones are inbuilt with different apps and you can find on the internet which exploits inbuilt hardware like Bluetooth, Wi-Fi, to control various devices.The proposed system presents a robot that can be controlled using a running app on an Android-based smartphone. Presented here is Smartphone Operated Robot that can be controlled using an app running on an Android phone. The control commands are sent via Bluetooth and the robot has such features as.

• It can be controlled from Android applications by touch/voice commands
• The speed of the robot can also be measured
• The robot will detect and notify to the phone its distance from the nearer problem
• It will also send information about the direction in which it is moving

Smartphone Operated Robot

Android is an open-source OS (operating system) which means that any maker can use it in their gadgets free of charge. It was constructed to be truly open. For instance, an application can call upon any of the phone’s core functionality like making calls, sending text messages, or using the camera. Android was designed on the open Linux Kernel. Furthermore, it uses a custom virtual machine that was intended to optimize hardware and memory resources in a mobile environment.

Android with Other OS

Android is an open source software, designers can change the OS (operating system) to suit their own needs and phones. This becomes an inexpensive and possible alternative to the manufacturer, as opposed to developing an OS in-house or hiring a software company to do it.

IoS

It’s not accessible on all carriers, but this is increasing. The battery is not replaceable which is why all the I Phone users you know have it plugged in all the time as the battery degrades.

Windows

Windows Phone is closed-source, which means that it is exclusively developed by the company and sheltered by copyright. The Windows Store is limited as there only a few numbers of apps.

Hardware and Software Requirements

The hardware and software requirements of the Smartphone Operated Robot system include 8051 series Microcontroller, DC motors, Motor Driver IC, Crystal, Resistors, Capacitors, Voltage Regulator, Battery, Robot Body, Bluetooth Module, Keil compiler, Language: Embedded C or Assembly and Android Application.

Android Application Operated Bluetooth

• The Android platform comprises support for the Bluetooth network stack, which lets a device to wireless interchange data with other Bluetooth devices.
• The application framework offers access to the Bluetooth functionality through the Android Bluetooth APIs.
• Super simple & easy way to interface using Bluetooth stack.
• 3.3V Device with standard 5V DC Power source.
• Can also support SPI-Protocol, pins are made available.
• Low cost and Low power consumption.
• It has high-performance wireless transceiver system
• It can be used to interface with PC, Mac or Android phones or tablets.
• Generic Default Visibility at Software side: HC-06 or Linvor
• Default Pairing code is not ‘0000’ but ‘1234’.
• Please use Baud Rate with 8-N-1 connectivity from another device.
• Works with any microcontroller with Serial connectivity.

Microcontroller AT89S51/52

A microcontroller is a smaller computer, which has on-chip RAM, ROM, I/O ports, etc. The features of this microcontroller include the following.

• Well-matched with MCS®-51 Products
• 8K Bytes of In-System Programmable (ISP) Flash Memory
• Strength: 10,000 Write/Erase Cycles
• Operating Range is 4.0V-5.5V
• Fully Static Operation: 0 Hz-33 MHz
• Internal RAM: 256 x 8-bit
• 32 Programmable I/O Lines
• Three 16-bit Timer/Counters
• 8-Interrupt Sources
• Full Duplex UART Serial Channel
• Interrupt Recovery from Power-down Mode
• Watchdog Timer
• Dual Data Pointer

Motor Driver (L293D)

Motor driver IC L293D is a dual H-bridge integrated circuit (IC). In its common mode of operation, two DC motors can be driven concurrently, both in forward & reverse direction. The motor processes of two motors can be controlled by i/p logic at pins 2, 7, 10 and 15. Input logic 00/11 will stop the equivalent motor. Logic 01 & 10 will rotate it in clockwise and anticlockwise directions respectively. Enable pins 1 & 9 (corresponding to the two motors) must be high for motors to start working. When an enable i/p is high, the related driver gets enabled.

• Wide supply voltage range: 4.5V to 36V
• Separate i/p logic supply
• Internal ESD protection
• Thermal shutdown
• High-Noise-Immunity input
• Functional Substitutions for SGS L293 and SGS L293D
• O/p current 1A/channel (600 mA for L293D)
• Peak o/p current 2 A/channel (1.2 A for L293D)
• o/p clamp diodes for Inductive Transient suppression (L293D)

DC- Motor

• A DC motor is an electric device that works on direct current (DC) electricity. In any motor, the process is based on simple electromagnetism.
• A simple two-poles DC electric motor (here red represents a magnet or winding with a “North” polarization, while green represents a magnet or winding with a “South” polarization).
• Every DC motor has six basic parts, namely axle, stator, the rotor (a.k.a., armature), field magnet(s), commutator, and brushes.

TSOP1738

The TSOP17 series are reduced receivers for IR remote control systems. PIN diode & preamplifier are assembled on lead frame, the epoxy package is designed as IR filter. The demodulated o/p signal can directly be decoded by a microcontroller. This receiver is the standard IR remote control receiver series, supporting all main transmission codes

• Photodetector & preamplifier in one package
• Internal filter for PCM frequency
• Improved protecting against electrical field trouble
• Compatibility of TTL and CMOS
• O/p active low
• Low power consumption
• High protection against ambient light
• Endless data transmission possible up to 2400 bps
• Appropriate burst length is 10 cycles/burst

BC547 (NPN –Transistor)

• The BC547 transistor is an NPN-Epitaxial Si Transistor.
• It is used in general purpose switching & amplification BC847/BC547 series 45V, 100 mA NPN-general purpose transistors.
• The ratio of two currents namely ‘Ic’ and ‘Ib’ is called the DC current gain of the device and is denoted by the symbol of “hfe” or nowadays Beta, (β).
• The current gain from the emitter (E) to the collector terminal (C), Ic/Ie is called Alpha (α), and is a function of the transistor itself.

Project Working

This Smartphone Operated Robot project is designed to control a robotic vehicle using an android application based device. Bluetooth device is interfaced to the control unit on the robot for detecting the signals transferred by the android application. This data is conveyed to the control unit which transfers the robot as desired. An 8051 series microcontroller is used as a control device.

Remote operation can be done by any android based gadget, upon a Graphical User Interface GUI (GUI) based touch screen operation. Transmitting end uses an android application device remote through which commands are transmitted.

In the Present situation, a Robot is controlled by manual override. Every time a manual action is required to Switch ON and Switch OFF the buttons to control the Robot. So at that time, only Robot is moving according to the manual instruction. Missing the objective that needs to monitor the Robot wirelessly.

Thus, this is all about how to build a Smartphone Operated Robot. We hope that you have got a better understanding of this concept. Furthermore, any doubts regarding this concept or to implement Android application controlled the remote robot. Please, give your feedback by commenting in the comment section below. Here is a question for you, what is the function of TSOP1738?