Automated Guided Vehicle, abbreviated as AGV, is also commonly referred to as AGV trolley. It is equipped with an automatic guiding device such as electromagnetic or optical, which can travel along a prescribed guiding path. It has safety protection and various transfer functions. A battery that does not require a driver and a rechargeable battery is the source of power.
Automated Guided Vehicle, abbreviated as AGV, is also commonly referred to as AGV trolley. It is equipped with an automatic guiding device such as electromagnetic or optical, which can travel along a prescribed guiding path. It has safety protection and various transfer functions. A battery that does not require a driver and a rechargeable battery is the source of power. Generally, the travel route and behavior can be controlled by a computer, or the electromagnetic track can be used to set up the travel route, the electromagnetic track is adhered to the floor, and the unmanned transport vehicle relies on the information brought by the electromagnetic track to move and move. AGV type
1. Latent type: Dive into the bottom of the material truck, automatically hook and separate to achieve material delivery and recycling operations.
2. Traction type: The traction of the skip is realized by the automatic hooking and tripping mechanism at the tail.
3. Self-unloading: Backpack-type platform, using drums, belts or other means to achieve material docking.
4. Lifting type: The carrying platform can automatically lift the material and can run the operation synchronously with the assembly line.
5. Forklift type: Material handling is carried out using an open forklift.
(1) High degree of automation;
Controlled by computer, electronic control equipment, magnetic induction SENSOR, laser reflector. When a certain part of the workshop needs auxiliary materials, the staff inputs relevant information to the computer terminal, and the computer terminal sends the information to the central control room, and the professional technician sends instructions to the computer. Under the cooperation of the electronic control equipment, this The instructions are eventually accepted and executed by the AGV – the excipients are delivered to the appropriate location.
(2) charging automation;
When the power of the AGV car is about to run out, it will send a request command to the system to request charging (the general technician will set a value in advance), and automatically "queue" the charging to the charging place after the system allows it.
In addition, the AGV car has a long battery life (more than 2 years) and can work for about 4 hours per 15 minutes of charging.
Improve the visibility and thus enhance the image of the company.
(4) Convenience and reduce the floor space;
The AGV trolleys in the production workshop can be reciprocated in various workshops.
1, folding magnet gyro guidance
The AGV is equipped with a special magnetic position sensor, and a small magnet is mounted on the ground along the running path. The AGV relies on the position sensor to sense the position of the small magnet, and then continuously controls the running direction of the unmanned vehicle by using the gyroscope technology. Automatic handling.
2, folding electromagnetic induction guidance
The electromagnetic induction type guidance is generally on the ground, and the electric wires are buried along a preset driving path. When a high-frequency current flows through the wires, an electromagnetic field is generated around the wires, and two electromagnetic sensors are symmetrically mounted on the AGV, and the received electromagnetic signals are received by the AGV. The difference in the intensity of the electromagnetic signal can reflect the extent to which the AGV deviates from the path. The AGV's automatic control system controls the steering of the vehicle based on this deviation. Continuous dynamic closed-loop control ensures stable and automatic tracking of the set path by the AGV. This electromagnetic induction guided navigation method is currently used on most commercial AGVS, especially for large and medium-sized AGVs.
3, folding laser guidance
The AGV is equipped with a rotatable laser scanner, and a laser positioning mark with a highly reflective reflector is mounted on a wall or pillar along the running path. The AGV relies on a laser scanner to emit a laser beam, and then receives reflection from the surrounding positioning mark. The returned laser beam, the on-board computer calculates the current position of the vehicle and the direction of the movement, and corrects the orientation by comparing with the built-in digital map, thereby realizing automatic handling.
At present, the application of this kind of AGV is more and more common. And according to the same guiding principle, if the laser scanner is replaced with an infrared emitter or an ultrasonic transmitter, the laser-guided AGV can be changed into an infrared guided AGV and an ultrasonic guided AGV.
The warehousing industry is the earliest application of AGV. In 1954, the world's first AGV was put into operation in the warehouse of Mercury Motor Freight Company in South Carolina, USA, to realize the automatic handling of inbound and outbound goods. At present, there are about 20,000 various AGVs in the world running in 2,100 large and small warehouses. In the three-dimensional warehouse of the development zone that Haier Group put into operation in 2000, nine AGVs formed a flexible in-house automatic handling system, successfully completing the daily handling of 23,400 inbound and outbound cargo and parts.
AGV is a leader in the manufacturing line of production, efficient, accurate and flexible material handling tasks. And a flexible logistics handling system can be composed of multiple AGVs. The transportation route can be adjusted in time with the adjustment of the production process, so that more than ten products can be manufactured on one production line, which greatly improves the flexibility of production and the competitiveness of the enterprise. In 1974, in order to improve the flexibility of the transport system, the Volvo Kalmar sedan assembly plant in Sweden adopted an automatic car assembly line based on AGVS as a carrier. The assembly line consists of several AGVSs that can be loaded with the car body. After the assembly line, the assembly time is reduced. 20%, assembly failure reduced by 39%, investment recovery time reduced by 57%, labor force reduced by 5%. At present, AGV has been widely used in the manufacturing and assembly lines of major automobile factories in the world, such as GM, Toyota, Chrysler, and Volkswagen.
In recent years, as the basic handling tool of CIMS, the application of AGV has penetrated into many industries such as machining, home appliance production, microelectronics manufacturing, cigarettes, etc. The field of production and processing has become the most widely used field of AGV.
3. Post office, library, port terminal and airport
In post offices, libraries, terminals, airports, etc., the transportation of items has the characteristics of large changes in workload, strong dynamics, frequent adjustment of work processes, and single handling operation. AGV's parallel operation, automation, intelligence and flexibility. The characteristics of the product can well meet the handling requirements of the above-mentioned occasions. Sweden started the postal work in 1983 at the Post Office in Greater Stockholm, Japan in Japan in 1988 at the Tama Post Office, and in 1990 at the Shanghai Post Hub in Shanghai. At the port of Rotterdam, the Netherlands, 50 AGVs called “yard tractors” completed the repetitive work of transporting containers from the side of the ship to warehouses hundreds of yards away.
4. Tobacco, medicine, food, chemical industry
In the tobacco, pharmaceutical, food, chemical and other industries where the handling operations are clean, safe, and free of emissions, the application of AGV has also received attention. Many cigarette companies in China, such as Qingdao Yuzhong Group, Yuxi Hongta Group, Honghe Cigarette Factory, Huaiyin Cigarette Factory, use laser-guided AGV to complete the handling of pallet goods.
5. Hazardous places and special industries
Militaryly, it integrates other detection and disassembly equipment based on AGV's automatic driving. It can be used for battlefield demining and position reconnaissance. The British military is developing MINDER Recce, a reconnaissance vehicle with mine detection, destruction and route verification capabilities. Automatic reconnaissance vehicle. In steel plants, AGV is used for the transportation of furnace materials, which reduces the labor intensity of workers. In places where nuclear power plants and nuclear radiation are used for fresh-keeping storage, AGVs are used for the transport of goods and avoid dangerous radiation. In film and film warehouses, AGV delivers accurate and reliable materials and semi-finished products in a dark environment.