Students create wall-climbing robot and get orders from businesses

The new generation of students is increasingly talented, rich in soft skills, quickly adapts to technology, is confident in work, and is especially creative...

With the desire to support telecommunication cable connection staff, a group of students from Ho Chi Minh City University of Technical Education has created a wall and ceiling climbing robot with a maximum load capacity of 1.7 kg. The group consists of 3 students: Truong Quoc Huy, Le Van Duc and Nguyen Dang Truong; they are 4th year students of the Faculty of Mechatronics of the university. The wall climbing robot product supports employees in connecting telecommunication cables indoors more conveniently than manual wiring.

Group of students build wall climbing robot

NVCC

Multi-groove rubber design increases wall grip

With just a few touches on the phone screen, Quoc Huy made the robot climb the wall, carry the cable and move through every corner of the floor smoothly, just like... Spiderman. "Our team made this product with the desire to support telecommunications staff without having to remove each ceiling panel, saving time when wiring on the ceiling," Huy confided. Then Huy continued: "Our team used a 3D printer to design the robot frame and completed it within 3 months. With a compact size of 15 x 15 cm, weighing about 0.5 kg, the wall-climbing robot moves very easily through flat, rough terrain...; especially in places with small spaces. In addition, the team also equipped the robot with lights to move in low light conditions, a motor with a voltage of 16 V, a current of 60 A. The robot carries a weight of up to 1.7 kg, and an operating time of 15 minutes". Quoc Huy also said that at first, the group researched and experimented with the design of the motor circuit, installed surveillance cameras, and built a robot control program on a smartphone. "There were some hard and soft components to assemble the robot that the group could not find or had to spend a long time buying," Huy said. According to Quoc Huy, the wall-climbing robot was equipped with a specialized motor for high-power unmanned aerial vehicles. "The group placed an additional motor under the robot to help push the air out. Thanks to that, the robot will stick tightly to the wall. On the robot's moving wheels, the group designed many rubber grooves to increase the robot's ability to grip the wall," Huy said. Quoc Huy said that the robot's grip strength is determined by the motor's rotation speed. "The group also had a headache when having to carefully calculate the robot's grip strength. Because low grip strength will cause the robot to fall when moving. If the grip strength is too strong, the robot will have difficulty moving," Huy said.

A telecommunications company wants to cooperate

Huy's team equipped the power source with a lithium battery connected to the motor with an external wire, helping to reduce the robot's weight. That also made the robot susceptible to voltage drop problems. "That means after a while, the power supply to the motor is not enough, reducing the robot's grip," Huy said.

Wall climbing robot, carrying cable

NVCC

"The current supplied to the robot is very high. When moving a long distance, the longer the connecting wire, the greater the resistance, causing loss and reducing the engine's power," Huy shared more about the cause of the voltage drop. "In the near future, the group will calculate and build a program to help the robot optimize its energy use by only providing high current during the wall climbing process. When the robot moves on a flat surface, it will use a lower energy level," Huy said. As the group's guide to making the robot, Dr. Dang Xuan Ba, lecturer at the Faculty of Electricity - Electronics, Ho Chi Minh City University of Technical Education, said that there is currently a telecommunications company that wants to cooperate in testing the product with an order price of nearly 1 million VND/robot. At the same time, the group is redesigning the hardware so that the robot operates according to an available program, without the need for a controller. In addition to the cable application, according to Dr. Dang Xuan Ba, the robot can be sold as a children's toy; or used to move, observe and check problems in small, harsh areas that humans cannot access. However, Dr. Dang Xuan Ba ​​said that the team needs more time to evaluate the stability and flexibility in the robot's operation. In addition, the robot's materials need to be durable, impact resistant and ensure the stability of the engine. At the same time, the team must let the robot run more to optimize the design, adjust the engine capacity as well as prevent possible incidents, ensuring safety.

Our team created this product with the desire to help telecommunications staff not have to waste time removing each ceiling panel, saving time when wiring on the ceiling.

Truong Quoc Huy, student at Ho Chi Minh City University of Technical Education

Thanhnien.vn

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