Analysis of Ultrasonic Sensors of “Dry Goods” AGV

AGV is the abbreviation of (Automated Guided Vehicle), which means "Automated Guided Vehicle". It is equipped with electromagnetic or optical and other automatic guidance devices. It can drive along the prescribed guidance path, has safety protection and various mobile Carrying function of the transport vehicle.

The AGV intelligent transportation robot is a very important member of the storage of goods in the production process. Especially in the development of the technological age. As far as the industry is developing rapidly, the industrial production line is combined with modern technology, and the use of robots to upgrade production has made the industrial process more and more intelligent, while also making the production line more efficient and safer. The AGV transportation robot autonomously protects itself from driving and safely reaches the designated location and other characteristics, making it unique in the automation industry. Now let's talk about several mainstream autonomous safety protection methods of the main AGV transportation robot.

The first is 360-degree laser collision avoidance. Laser collision avoidance does not need to lay a magnetic strip to modify the environment, and is compatible with non-radiation board navigation and reflector navigation. High flexibility, simple route change, adapt to changes in smart factory environment. Its principle is to scan the surrounding environment through the laser sensor to create an environmental map in the system, and the laser sensor continuously obtains environmental information during the AGV driving process, matches and locates the map data, and cooperates with the motion controller and control algorithm to Realize the autonomous protective navigation of AGV.

Compatible with reflector navigation. Reflecting plates are arranged at certain intervals around the AGV driving route. The laser on the AGV scans and emits laser beams, and at the same time collects the laser beams reflected by the reflectors. According to the reflected multiple laser beam data, the current position and heading of the AGV in the environment can be determined, and the motion controller and control algorithm can be used to realize the AGV's autonomous protective navigation.

The second type, photoelectric sensor collision avoidance, laser trackless navigation forklift fork arms use photoelectric sensors, when the transport robot is close to the goods or shelves, it can accurately sense the distance to the goods at a static distance, prevent the transport forklift from colliding with the goods, and also make the AGV more adaptable. This kind of working environment is safer.

The third type is ultrasonic collision avoidance. Its principle is to use the characteristic that ultrasonic waves can reflect when encountering obstacles, and use ultrasonic sensors to detect the distance to obstacles and prevent collisions with obstacles. Because the beams emitted by the ultrasonic wave are launched in a certain range, the ultrasonic anti-collision makes up for the shortcomings of the laser anti-collision only horizontal plane anti-collision, making the laser trackless navigation forklift more comprehensive and safer.

The fourth type is mechanical collision avoidance. Mechanical switches are installed around the AGV transportation robot. When the AGV transportation robot collides with an object, the controller collects data, and adjusts the forehead motion control system in time to stop the AGV to prevent collision. .

It can be seen that the multiple protection system of the AGV transportation robot makes the transportation vehicle safer during the driving process, and the production efficiency has also been greatly improved. In the future, AGV intelligent transportation robots will become a mainstream and a symbol of industrial intelligence.

In summary, we recommend two affordable sensors combined with automated production: ultrasonic obstacle avoidance sensor MB1043 and robot ultrasonic sensor MB7360.

Ultrasonic obstacle avoidance sensor MB1043 is a high-resolution (1mm), high-precision, low-power ultrasonic sensor. It is designed not only to deal with interference noise, but also to resist noise interference. And for targets of different sizes and varying supply voltages, sensitivity compensation has been made. It also has standard internal temperature compensation, which makes the measured distance data more accurate. Used in indoor environments, it is a very good low-cost solution!

The robot ultrasonic sensor MB7360 is a high-resolution (1mm), high-precision, low-power ultrasonic sensor. It is designed not only to deal with interference noise, but also to resist noise interference. And for targets of different sizes and varying supply voltages, sensitivity compensation has been made. It also has standard internal temperature compensation and optional external temperature compensation, which makes the measured distance data more accurate. Direct output of accurate distance readings saves MCU resources and is more suitable for use in robotics.