Application of core technology of ultrasonic sensor in AGV transportation robot

AGV is the abbreviation of (Automated Guided Vehicle), which means "automated guided vehicle", which refers to equipped with electromagnetic or optical automatic guidance devices, which can drive along the prescribed guidance path, with safety protection and various mobile transporter with loading function. 

The AGV intelligent transportation robot is a very important member of the handling and storage of goods in the production process. Especially under the development of the technological age. With the rapid development of industry nowadays, industrial production lines are combined with modern technology. Using robots to upgrade production, the industrial process is becoming more intelligent, and it also makes the production line more efficient and safer. The AGV transport robot autonomously protects itself and reaches the designated position safely, which makes it unique in the automation industry. Now let's talk about several mainstream autonomous security protection methods of the main AGV transportation robot. 

The first is 360-degree laser collision avoidance. Laser anti-collision long range ultrasonic sensor

is not required to lay the magnetic strip to transform the environment, and is compatible with non-radiation board navigation and reflection board navigation. High flexibility, simple route changes, adapt to changes in the smart factory environment. Its principle is to scan the surrounding environment through the laser sensor, create an environmental map in the system, and during the AGV driving process, the laser sensor continuously obtains environmental information, matches and locates with the map data, and cooperates with the motion controller to control the algorithm to realize AGV's autonomous protective navigation.

Compatible with reflector navigation. ultrasonic sensor for distance measurement is arranged at a certain distance around the AGV driving route. The laser scanning on the AGV emits a laser beam, and at the same time collects the laser beam reflected by the reflecting plate. According to the data of multiple laser beams reflected back, the current position and heading of the AGV in the environment can be determined, and in conjunction with the motion controller, the control algorithm can realize the autonomous protection navigation of the AGV.

The second type is the photoelectric sensor anti-collision. The forklift arm of the laser trackless navigation forklift uses a photoelectric sensor. When the transportation robot is close to the goods or the shelf, it can accurately detect the distance from the goods at a static distance to prevent the transportation of the forklift from colliding with the goods. This kind of working environment is safer. 

 

The third type is ultrasonic collision avoidance. Its principle is to use the characteristics of ultrasonic waves that can reflect when encountering obstacles, and using ultrasonic sensors to detect the distance to obstacles and prevent collisions with obstacles. Because the beam emitted by the ultrasonic wave is emitted in a certain range of space, the ultrasonic anti-collision makes up for the disadvantage that the laser anti-collision only has horizontal anti-collision, making the laser trackless navigation forklift anti-collision more comprehensive and safe.

The fourth type is mechanical anti-collision. Install mechanical lighting around the AGV transport robot. When the AGV transport robot collides with an object, the controller will collect data and adjust the vehicle movement control system in time to stop the AGV and make the anti-collision .

 

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

 

In summary, the two economical ultrasonic sensors recommended to you by combining automated production are: the ultrasonic obstacle avoidance sensor MB1043 and the 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 has the ability to resist noise interference. And for the targets of different sizes, and the varying supply voltage, sensitivity compensation is done. In addition, it has standard internal temperature compensation, which makes the measuring distance data more accurate. Used in indoor environments, it is a very good low-cost solution! 

 

The robot ultrasonic sensor parts is a high-resolution (1mm), high-precision, low-power ultrasonic sensor. It is designed not only to deal with interference noise, but also has the ability to resist noise interference. And for the targets of different sizes, and the varying supply voltage, sensitivity compensation is done. In addition, it has standard internal temperature compensation and optional external temperature compensation to make the measured distance data more accurate. Direct output of accurate distance readings saves MCU resources and is more suitable for robotics applications.