E-Naqa System (Robotic Barrier)
E-Naqa is a modern concept to scan vehicles for suspicious actions like bomb blasting. The primary aim of E-Naqa is to install safe, reliable, and automatic vehicle scanning systems on highways so that the risks of causalities can be reduced to zero. There are many solutions to scanning the vehicle.
2025-06-28 16:26:54 - Adil Khan
E-Naqa System (Robotic Barrier)
Project Area of Specialization Mechatronics EngineeringProject SummaryE-Naqa is a modern concept to scan vehicles for suspicious actions like bomb blasting. The primary aim of E-Naqa is to install safe, reliable, and automatic vehicle scanning systems on highways so that the risks of causalities can be reduced to zero. There are many solutions to scanning the vehicle. Initially, the most you could do had the security workforce take a fast look underneath a vehicle and check whether anything looks dubious. The downsides of this are various, including that it requires a precarious measure of information for the workforce's sake, that it is hard to get a total perspective on everything down there, and that it places the security master in a riskier circumstance. Along these lines, many started to utilize handheld mirrors to improve the look underneath the body of a vehicle. This arrangement experiences large numbers of the very issues that some other manual investigation technique does in any case. E-Naqa (Robotic Barrier) using advanced engineering provides security personnel with the tool to detect today’s threats. Our systems help those in the energy, transportation, commercial, and government sectors protect their people and their valuables by detecting threats in time to act. E-Naqa system is going to be trusted to help protect critical infrastructure in the future. It will ensure security and remove human errors in screening the vehicle. Moreover, it would reduce the risk of losing a life. It can be operated 24 hours because of its efficiency and availability.
Project ObjectivesThe main objective of the project E-Naqa is to provide a mechanism that allows security personnel to remotely inspect a vehicle. Furthermore, to allow two-way communication between the driver and the security personnel and to inspect the cabin of the car, its under-carriage and its trunk. A secondary objective of the project is to make a system as robust as possible while keeping the maintenance cost low. Then another aim of the project is to use a single Camera to cater one vehicle and have a minimalist user-friendly interface.
Project Implementation MethodComplex designs and solutions to modern problems are often difficult to implement so we adopted a simplified design approach with minimum complexity without compromising on dexterity.
The model of our project consists of two cartesian manipulators one horizontal of 7-8 ft and the other vertical of the approximate height of 4-5 ft. Both will contain rack and pinion systems.
Horizontal Manipulator:
The horizontal manipulator will have a self-locking motor with a coupling that will move along the length of the vehicle while moving a box that will contain a pinion. The vertical manipulator will be attached to the box so it will move as the box will move right or left.
Vertical Manipulator:
The vertical manipulator will itself contain a similar mechanism i.e. the self-locking motor and box assembly. But with the box, A 360° camera will be attached to the box that will perform an inspection of the vehicle along with the driver's visualization. Two-way communication will also be done through a microphone system attached to the camera.
As the vertical manipulator will move on the horizontal manipulator, the camera will perform an inspection of the vehicle starting from the driver to the trunk of the car.
This vertical manipulator will have 4 locking wheels that will help in motion while bearing some load of the manipulator as well.
Box in both manipulators on parallel rods with linear bearings containing mounts. For the machining of parts, CNC lathe machines and CNC laser machines will be used. For the drilling of holes, a CNC milling machine will be consulted.
Benefits of the ProjectFollowing are certain main points regarding the benefits of E-Naqa:-
1- Lifesaving point.
The main application of our project is that we will be to save the life of a police officer present at the Naqa in case of the presence of any foreign object. Suppose an explosion takes place at the Naqa during checking, as our project is completely automated and remotely controlled, we will be able to save life remotely. With the help of a joystick, we will achieve the left and right motion of the camera. Hence results in the inspection of the vehicle. The camera too has a rotation option that will be controlled by an application.
2- Time-saving point.
As inspection of the vehicle is not manual time will be saved during the inspection as motor speed is better than human movement.
3- Video recording.
The video will be saved in the camera app and we can review that in the latter days if the police officer at the checkpoint does some corruption or something gets overlooked. There is an option to review that piece of video.
As far as the technical aspects of final deliverables are concerned E-Naqa system comprises:
- Vertical Rack and Pinion (4ft high)
- Horizontal Rack and Pinion (7ft long)
- 2 DC Motors
- 4 Linear Cylindrical bearings
- One 360 degrees app-controlled camera
- Iron beams of various lengths
- 2 Gears
The final deliverable comprises a horizontal and vertical beam structure. The mechanism used to drive the camera is Rack and Pinion mechanism. Why Rack and Pinion?
- Robust and long life provided lubrication is done properly.
- Much more control over the position
- Easy to manufacture in comparison to other considerations.
- A cheaper option in comparison.
And the bearing we used for driving is cylindrical rod bearings. The reasons for choosing these bearings are:
- Easy availability of long length cylindrical rod
- Cheaper to develop
- Available in ample sizes.
It has become harder to choose the right electric motor for a project due to the advancements in motor technology in recent decades. Selecting the idol motor for different applications depends on some design criteria such as positional accuracy requirements, cost, availability of drive power, torque, and acceleration requirements. Our primary concern was to provide a suitable torque to drive the mechanism at considerable speed. We have done calculations to find our desired torque and motor speed.
Horizontal Application
Force = F =m*g*? + m*a + f
m = 7kg = moved mass; includes the application load, plus any system components that are being moved, such as the pinion, gearbox, motor, etc. (kg, lbm)
g = gravitational constant (9.81 m/s2, 32.2 ft/s2)
? = coefficient of friction of guide mechanism (typically 0.002 to 0.003 for ball or roller recirculating guides)
a = maximum acceleration the system will experience (m/s2, ft/s2)
f = Frictional force due to the application; if applicable (N, lbf)
f = c*m*g = (0.08)(25)(9.81) = 19.62 N
mg? = 0.1373 N
and F = 19.75 N
Torque required tau = r*F = (0.038 m)(19.62 N) = 0.75 Nm
(Since the radius of the pinion is 1.5inches = 0.038 m)
Vertical Application
F = m*g + m*a + f
m = 5kg = camera + box
F = 49.05 N
tau = 3.73 Nm
(Radius of vertical pinion = 3 inches = 0.0762m)
Note:
1. Regarding the electronic circuit we used DPDT switches to control the direction of motors. In this way, we have cut the cost of electronic circuitry and controller.
2. We have added a pulley with weight in our vertical drive to divide the weight of the camera and its box so that a minimum load will be there on the motor driving the camera up and down.
3. In order to reduce the load on the motor driving the vertical beam back and forth we have placed the vertical beam on the ground with the help of tires.
| Item Name | Type | No. of Units | Per Unit Cost (in Rs) | Total (in Rs) |
|---|---|---|---|---|
| Total in (Rs) | 80000 | |||
| Self locking motors | Equipment | 2 | 20000 | 40000 |
| Camera | Equipment | 1 | 20000 | 20000 |
| Linear bearings | Equipment | 4 | 2500 | 10000 |
| Rods and racks | Miscellaneous | 5 | 2000 | 10000 |