This article will give you a comprehensive understanding of AGV
Update time：2020-04-26 Author：admin Popularity：245
AGV: full name is automated guided vehicle, which means "automatic guided vehicle". AGV is equipped with electromagnetic, optical or other automatic guidance devices, which can drive along the prescribed guidance path, with safety protection and various load transfer functions.
Characteristics and applicable scenarios of AGV
AGV (IGV) system is widely used in three-dimensional storage system and flexible production line. It is also the best choice for many manufacturing enterprises to improve production efficiency and reduce production costs. Because AGV is trackless, it has a wide range of applications, diverse structure and control modes, so there are many types of AGV.
Advantages of AGV
① High efficiency
The AGV car can realize automatic charging function. Under the premise of safety redundancy, it can realize 24-hour continuous operation, and greatly improve the handling efficiency of product materials.
② Saving management energy
The full digital management of AGV can effectively avoid human factors and improve the management level.
③ Good flexibility and system expansibility
The intelligent sensor development of intelligent AGV car not only adopts the traditional position, speed and acceleration, but also uses the fusion technology of machine vision, force feedback and other intelligent sensors to make decision and control. The multi-sensor fusion configuration technology in the associated equipment has been mature applied in the existing AGV equipment system.
④ High reliability
Compared with the low efficiency of manual handling, the unknown path, speed and safety of forklift truck and trailer, the driving path and speed of AGV can be controlled, and the positioning and parking are accurate, thus greatly improving the efficiency of material handling. At the same time, the AGV central management system can monitor the AGV car in the whole range, and its reliability is greatly improved.
⑤ High security
AGV has perfect safety protection ability, intelligent traffic route management, safety and collision avoidance, multi-level warning, emergency braking, fault report, etc., which can play a unique role in many occasions not suitable for human work.
AGV has a wide range of application scenarios. AGV plays an important role in different manufacturing links such as machining, warehousing and assembly, and has even become one of the most iconic configurations of modern intelligent factories.
Composition of AGV
AGV usually consists of the following components:
Car body: composed of frame and corresponding mechanical device, it is the basic part of AGV and the installation foundation of other assembly parts.
Power storage and charging device: it is composed of charging station and automatic charger. AGV can complete automatic online charging and centralized management by central control system to realize 24-hour continuous production.
Driving device: composed of wheel, reducer, brake, driving motor and speed controller, it is the device to control the normal operation of AGV. The operation instruction is sent out by computer or manual control, and the adjustment of running speed, direction and braking is controlled by computer. For safety, the braking device is realized by mechanical braking when power is off.
Guidance device: receive the direction information from the guidance system to ensure the AGV car to walk along the correct path.
Communication device: realize the information exchange between AGV and console and monitoring equipment.
Safety and auxiliary device: in order to avoid AGV system failure or collision when someone passes through the AGV working route, AGV usually has obstacle detection and collision avoidance, alarm sound, alarm vision, emergency stop and other devices.
Transfer device: the device that directly contacts with the goods to be transported to realize the transfer of goods. Under different tasks and site environment, different transfer systems can be selected, such as raceway type, forklift type, manipulator type, etc.
Central control system: composed of computer, task acquisition system, alarm system and related software. It is mainly divided into ground (upper) control system and vehicle (lower) control system. Among them, ground control system refers to the fixed equipment of AGV system, mainly responsible for task allocation, vehicle scheduling, route (line) management, traffic management, automatic charging and other functions; after receiving the command from the upper system, the on-board control system is responsible for the navigation calculation, guidance realization and vehicle walking of AGV , loading and unloading operation.
The value of AGV
Compared with walking, crawling or other non wheeled mobile robots, AGV has the advantages of fast action, high efficiency, simple structure, strong controllability and safety. Compared with other equipment commonly used in material transportation, AGV's active area does not need to lay track, support frame and other fixed devices, and is not limited by the site, road and space. Therefore, it can fully reflect its automaticity and flexibility, and realize efficient, economical and flexible unmanned production
High work efficiency;
High degree of automation;
Avoid manual operation and low error rate;
Convenient, reduce floor space;
The cost is relatively low;
Beautiful, improve the appreciation, improve the image of the enterprise
Key technology and development trend of AGV
As a branch of AGV technology, AGV has been developing rapidly. At present, the commonly used guidance methods are: electromagnetic guidance, magnetic tape guidance, color band guidance, laser guidance, inertial guidance, visual guidance, GPS guidance, coordinate guidance, etc.
At present, there are four common driving modes of AGV: single wheel drive, differential drive, double wheel drive and all-round drive. According to the number of wheels, there are mainly three wheel models and four-wheel models. In the selection, the selection is based on the actual pavement conditions and functional requirements of the workplace.
Battery is usually used as energy storage carrier in traditional AGV, which can be used by AGV at present