Tunnel for automatic cars in the ground

Scientists of the Institute of Electrical-Electronics-Computer Science-EEI HCM City have researched and successfully fabricated models of underground cars underground.

This model saves time, labor and surface area that can be applied in big cities in the context of heavy parking lots at present.

Dr. Nguyen Bach Phuc, Director of the Institute of Electrical-Electronics-Study -EEI said that for non-automatic car tunnels, with a capacity of several hundred vehicles, it is estimated that there are a few dozen staff members who are in charge of receiving vehicles and paying vehicles with jobs such as elevator control, moving vehicles into tunnels, managing parking locations .

These things take a lot of time, it is estimated that it takes about 15 minutes to 30 minutes for a vehicle pickup or return operation. Moreover, manual operation will be inaccurate, easily causing collisions to damage the vehicle.

Due to this need, many parts of the world have considered building automatic car vaults, in which the operation of the tunnel is fully automated according to a predetermined program. In Vietnam, Mr. Phuc's institute has embarked on a successful study!

Dr. Phuc with the model of basement containing cars in the ground.

With this model, the owner just needs to press the license plate, the electric system will automatically choose the empty position to put the car in and remember. When the vehicle owner wants to pick up the car, just press the number of the vehicle through the electronic board on the ground only two minutes after the car will be taken to the ground.

All operations on the automation principle, the tunnel structure must ensure safety, need to have the electric lift, lower and lower, move the car when receiving the first floor vehicle, take the car to the middle corridor and take the car from the middle corridor into the car compartments.

When taking the car and choosing the right number of vehicles, there is a mechanical system that takes the car from the car to the door and pushes the car to the elevator and brings it to the surface. All reinforced concrete chambers, which can hold nearly 100 cars, weigh about 20 tons each.

New and difficult issues are automation software, all operations of sending and receiving vehicles are automatic. The difficulty in implementing this model is that when the vehicle number is pressed, the automatic system must find the empty position in the 7 basements to bring the vehicle into the vehicle compartment.

This is a complex automated system. If the elevator is only a ladder, and the elevator person presses the button up and down to the floor, it is very simple. And this must automatically select nearly one hundred positions with many movements: motion up, down, run vertically, horizontally, choose position, to the position to stop the right place to get the car from the storage chamber to the middle corridor, From the middle corridor to the elevator.

In theory, the amount of conversion is high, the amount of change is very complicated. The program must know how to automatically select an empty position in the 7 basements, then recall that position so that when paying the right car for the customer.

The process of programming software to do that is not simple. Currently all automatic controls come from computer software, digital information. After programming, it must use electronic measures to bring it into electric information. because the pull-up parts are electromechanical manipulation.

Dr. Nguyen Bach Phuc also said: This automatic control system is a rather complex system including computer, electronic, electrical, mechanical devices, which require high accuracy, and center of the brain. Its control software, readers can find more information about this technology at the Institute of Electrical - Electronics - Informatics - EEI, No. 16 Cu Chinh Lan, P13, Tan Binh District, Ho Chi Minh City. Tel: (08) 8429439 ª