This prototype of military robot is used in war fields to know about the status of the enemies around that area. It monitors the area with a camera by moving the camera to various positions or places remotely by an android application.

This war field spying robot uses microcontroller as the central processing unit, a Bluetooth modem to receive the command signal from the Android phone, an Android phone with a GUI application, a night vision wireless camera with remote area transmission capabilities, an IR LED for night vision lighting, a motor driver to drive a set of motors to control the vehicle movement and other miscellaneous associated components.

The user can monitor the war field area by controlling the movement of the vehicle by an Android application. When the user touches the position command in the Android application, the signal from the system is received remotely through a Bluetooth modem in the robot, and is further transferred to the microcontroller as shown in the figure.

The microcontroller is programmed in such a way that upon receiving corresponding signal from the Bluetooth, it sends the command signals to a motor driver that drives the set of motors to move the vehicle in the desired direction. And, also the wireless camera sends the video signals to a receiver station or unit, wirelessly, for monitoring purpose.

2. Fire Fighting Robot Remotely Operated by Android Applications

Fire-fighting robot is implemented as a fire engine to extinguish the fire. This type of robot is used in military as well in other sectors for extinguishing fire if it happens by accidents such as train accidents. The robotic vehicle consists of a water tank and a pump to sprinkle water.

Similar to the above project, this robot can also be controlled by using an Android-based application for remote operation purpose, but – also requires another motor driver and a motor to operate the sprinkle arm in a desired direction and a pump to increase the pressure of water.

This robot also uses a microcontroller to control the overall operation. By receiving the command signals from the android application via a Bluetooth modem, the microcontroller adjusts the movement of the vehicle through a motor driver IC. Next, the sprinkle bow or arm position of the robot gets adjusted by another motor driver IC that receives commands from the Android mobile.

The microcontroller of this system is programmed in Keil software and operates the relay for the pump (for switching on and off), and also operates two motor driver ICs for moving the vehicle and the sprinkle arm.

3. Pick-N-Place Robotic Arm and Movement Controlled by Android Wirelessly

This military robot can safely handle bombs especially while catching them and avoids the danger of explosion or extra pressure on suspected object. It is equipped with a soft catching gripper for pick and place function. The remote operation is achieved by a Bluetooth modem via an Android phone based GUI application

This pick and place robot uses two motor driver ICs to control two sets of motors. One set of motors is used to control the vehicle’s movement and the other set to operate the soft catching gripper, and this can be done by pressing the corresponding buttons on an Android application. After picking the object, the soft gripper holds the object and places it to another place by adjusting the vehicle movement.

The microcontroller’s program manages the overall control operation, and the program can be modified by the user based on the requirement. Based on the signals from the Bluetooth, the microcontroller sends command signals to the motor driver ICs. In this system, there is a possibility to add a wireless camera for monitoring overall process.

4. Voice Controlled Robotic Vehicle with Long Distance Speech Recognition

This type of robotic vehicle’s operation depends on the voice commands that are received by the speech recognition module. The command can be operated by both speech and push buttons controls. Such a type of Voice-controlled robotic vehicle comprises both transmitter and receiver circuits to achieve control objective.

Transmitting circuit consists of voice recognition module and push buttons as input controllers. By receiving these signals, the microcontroller sends these signals to an RF transmitter; from there the signals are transmitted to a receiver circuit.

The receiver circuit consists of a microcontroller which is placed inside the robotic vehicle and consists of devices like an RF receiver, a LASER module, a motor driver IC, and a set of motor, and so on. Upon the voice command, speech recognition module sends the information to the microcontroller, and then the information is transmitted to the transmitter circuit.

After receiving the command signals from the transmitter circuit, the receiver transfers those signals to the microcontroller. And then, the microcontroller sends the signals to the motor driver to control the vehicle movement.

5. Metal Detector Robotic Vehicle

This robot is useful to find landmines in the ground by sensing them while moving a vehicle ahead. A metal detector circuit is attached to this robotic vehicle to detect metal parts in the ground. The Remote operation of this vehicle to control the direction can be possible with an RF-based remote as transmitter that sends commanding signals to the receiver circuit.

This metal-detector robot is same as the voice-based vehicle that has been discussed above – in which the transmitting circuit consists of a push button control and an RF transmitter. However, an additional metal detector is added to the receiver circuit, here. Whenever the vehicle encounters any metal part on its way, a resonance change occurs in the coil- as a result, the control signals move forward towards the microcontroller.

Upon receiving the signals from the detector, the microcontroller gives out a buzzing sound and also continuously interacts with the receiver to move the vehicle in a desired direction or path.

In addition to these military robots, some of the robots that are also useful in military applications are given below and their real-time operation is also given in the corresponding links.

Line Following Robotic Vehicle

RF Controlled Robotic Vehicle with a Laser Beam Arrangement

IR Controlled Robotic Vehicle

These are some prototype military robots that have been discussed in this article to give practical orientation of their field applications. However, in real time, they are somewhat complex in nature – particularly the way in which they are controlled, the implementation of control systems in them, the components used, and so on.

We believe that you might have received enough information through these prototype models. Furthermore, for any help regarding the projects based on them, you can always comment in the comment section given below.