DEMONSTRATION OF MY PROJECT

RESULT

CONTENT:

This is a fully function of my project after going through a few troubleshoot. First of all, I need to connect the supply which is 9V that I use in this prototype. Then, we have to push a button start to make the vehicle move forward by follow the line. When the vehicle detect a metal on the floor, it will stop for a 10sec. This part is use for a worker at the factory to put a load on the vehicle. After 10 sec, the vehicle will move as usual by follow the line provided. Once the vehicle detect any presence of obstacle in front of it, the vehicle will stop immediately also for a 10sec and the buzzer also will ON automatically to sign a people the there have a obstacle in front of the vehicle. After 10sec, the vehicle will move again by follow the line. All this process will be run continuously until we push a stop button or disconnect the power supply. This project can be applied in factories, hospital, offices and also residential area. Diagram shown below is one of an example of the track can be implement for this vehicle.

OBJECTIVES:

• To well known about the fully operation of the Automated Guided Electric Vehicle.
• To know a suitable place that can be implement this kind of material handling.

CONCLUSION:

I can see the whole operation in this project and the fully function of doing this vehicle. So all the objective already been achieve since the vehicle can move smoothly and run well. 

BUILD A MECHANICAL PART

METHODOLOGY

CONTENT:

Mechanical part is the most important thing to see how the prototype of the project is look like. In order to make the prototype is complete, I have to consider a lot of part such as the motor shaft that have to put at the wheel of this vehicle, the prospect that need to cut by follow the size that can put all my circuit and also for the load space. All this thing I have to consider about the size, range also the space needed to ensure that the circuit can run smoothly without any over voltage or short circuit is happen. I take a lot of time to adjust the motor and motor driver part since it cannot move well by follow the line provided on the floor. To ensure that the motor can move faster, so I just use 3rpm motor since my supply voltage is not too higher.

OBJECTIVES: 

• To specified the actual size that needed for the prototype in this project.
• To complete up my project until the end of the process which is make it as one of the vehicle.
• To ensure that the motor can run by following the line beside know how to adjust and plug the motor correctly.

CONCLUSION:

By involve in this part, I can see how difficult to built a kind of vehicle that related with the motor shaft and motor driver. I have to consider about the movement of the vehicle that need to move forward, right or left side. I also have a problem on cutting the prospect that cannot cut by using common knife since the thickness of the prospect quite thick.So I need to hire a person that a have a suitable knife or machine to cut the prospect according to my specific size that I already measure before.At last all the part can combine together to make it become like kind of vehicle.

THE WHOLE CIRCUIT OF THIS PROJECT

METHODOLOGY

CONTENT:

This is all a part of my circuit that involve in this project to ensure all the function and objective can be achieve with smoothly. There are 5 circuit included in this project which is PIC circuit, obstacle or IR circuit, metal sensor circuit,line sensor circuit and the last one is motor driver circuit. All this circuit have their own function that will give a signal to each other when they face a certain situation based on the program that already build in the PIC 16F877A that act as a main brain of this project.

OBJECTIVES:

• To connect all the circuit with each other since it have a related function especially at the PIC circuit.
• To make it completely function as follow the objective.
• To estimated the space in order to build a mechanical part.

CONCLUSION:

Finally I can see the whole function of my project and feel relieve because it can work well after go through a few problem in interfacing and troubleshoot the circuit.

TIME FOR THE ETCHING & SOLDERING PROCESS

METHODOLOGY

CONTENT:

PCB etching is as simple as immersing it in the etchant solution and agitating it to keep sludge from inhibiting further etching. This can be done in plastic or glass trays, vertical etching tanks, or spray etchers. The goal of all of these methods is to dissolve all of the exposed copper and leave all of the unexposed copper. The acid FERRIC III CLORIDA is use in this process in order to ensure that all the connection can allow the current flow through the copper connection. The difference is throughput. A hobbiest is most likely to use a tray or a vertical tank.

Soldering is a process in which two or more metal items are joined together by melting and flowing a solder into the joint, the filler metal having a lower melting point than the workpiece. Soldering differs from welding in that soldering does not involve melting the work pieces.. Formerly nearly all solders contained lead, but environmental concerns have increasingly dictated use of lead-free alloys for electronics and plumbing purposes. Soldering is the only permanent way to ‘fix’ components to a circuit. However, soldering requires a lot of practice as it is easy to ‘destroy’ many hours preparation and design work by poor soldering. If we follow the right guideline, we can have a good connection on the PCB board.

OBJECTIVES:

• To move to the next step before reach to the final part of the completing this project.
• To learn how the correct way in order to etching and solder all the component in the PCB board.
• To allow the current flow through the connection and make the component function well.

CONCLUSION:

I already done finish the important part that can allow me to see the whole of operation in this project. I can learn a lot of things in order to make it connect correctly.

PCB LAYOUT FOR METAL SENSOR

METHODOLOGY

CONTENT:

A schematic without convert to the PCB layout does not give a good end up in one project because that connection only can be complete and function well we apply on the PCB board. If the connection on PCB layout is done, then we can proceed to the mechanical part. That is the reason I convert the schematic to this PCB layout.

OBJECTIVES:

• To convert a PCB layout from schematic circuit that already design before.
• To move to the next step in order to make the project become complete.

CONCLUSION:

I have successfully complete up this part, so that I can move to the next step which is etching process..

CIRCUIT FOR METAL SENSOR

METHODOLOGY

CONTENT:

As one of the objective in this project to stop the vehicle at the specific place, so I design this circuit in order to achieve the objective. This circuit will give a signal to PIC circuit when the sensor detect a metal that put on the floor. When the PIC get the signal, then the PIC will pass the signal to the motor to stop the operation immediately. The reason why I design this circuit is because I want to make sure that this vehicle will stop at certain place such as at the factory, there have some place that need to stop the vehicle to ensure that the workers enable to put a load on this project. So, this operation can make the workers can finish up their task smoothly and efficiently.

OBJECTIVE:

• To fulfill the objective of this project that can help the workers at factory do a task efficiently.
• To complete up the whole operation of this project.

CONCLUSION:

By design this schematic circuit, it can ease for me to make the function of this project become successful.

TEST THE OBSTACLE CIRCUIT

RESULT

CONTENT:

In order to ensure about the connection, I have try test the circuit on a breadboard first. To make the IR LED work well, I have increased the current to the LED to almost 50mA which is the maximum continuous current allowed. Because the LED is pulse on and off, this is quite safe and could have been increased to 100mA. To know how wide the detection area is, I used my hand as the object at the distance of approximately 300mm (12inches) from the single sensor, the detection area is about 150mm (6inches) wide. The double sensor can detect a wider area if the phototransistor are spread out at different angle. Using my hand side on the single sensor, the detection area was only about 60-70mm (2-3 inches). This is reasonably narrow due to the lenses in the LEDs and phototransistor. It should be noted that this is not a linear sensor because the intensity of light from the LEDs is 1 divided by distance squared. In other words, when the object is twice the distance away, the IR from the LED is 1/4. As a result,the closer the object, the better the resolution.

OBJECTIVES:

• To test about the connection is correct or not..
• To see whether it can function well or not..