Advantage Of Split Ultrasonic Parking Guidance System

Split ultrasonic detector system advantage

The entire system architecture of the split ultrasonic detector adopts Ethernet, CAN-BUS, RS485 hybrid networking, compared with the traditional Ultrasonic guidance system using RS485 networking, long communication distance, high communication efficiency, high bus utilization, reliable fault tolerance tolerance The mechanism greatly improves the network networking capabilities, and effectively responds to the construction and implementation of the parking lot guidance system;

The probe settings adopt the remote control settings, which can set the address, distance, type, mode and display method to meet the installation environment of various projects;

Adopt advanced intelligent learning anti -interference algorithms, which effectively solves the lane string of ultrasonic waves during the detection, and the side car interference to ensure the stability and reliability of the parking state detection;

The overall industrial design is adopted. After tested such as strict static electricity, lightning strikes, surge, and group pulse, it effectively guarantees the reliable use under the influence of severe environmental factors such as Japanese light lamps, large electromechanical equipment, lightning strikes and surge in the parking lot;

Basic principle of ultrasonic waves

Ultrasonic is part of the sound waves. It is a sound wave that cannot hear the ear and is higher than 20kHz. It has common points with the sound waves, that is, it is generated by the material vibration, and it can only be spread in the medium. At the same time, it is also widely wide The ground is stored in nature, and many animals can launch and receive ultrasonic. Among them, bats are the most prominent. It can fly in the dark and capture food with a weak ultrasonic echo. But ultrasonic also has its special nature, such as high frequency and short wavelength, so it is also similar to that of light waves with short wavelengths.

Feature Edit Broadcast

Ultrasonic is an elastic mechanical vibration wave. It has some characteristics compared to listening sounds. The direction of spreading is strong and can be concentrated into a small -oriented wiring beam; After the strength reaches a certain value, it will occur.

  Beam ejaculation

The sound wave emitted from the sound source is directed to a certain direction (other directions), which is called beam. As the wavelength is short, the ultrasonic wavelength will present a concentrated beam of rays in a certain direction when it passes through the small hole (a hole greater than the wavelength). Because the ultrasonic direction is strong, it can be settled to the collection information. Similarly, when there is a diameter of a obstacle in the direction of ultrasonic transmission, the diameter is greater than the wavelength, and the "sound shadow" will be generated after the obstacles. These like light through small holes and obstacles, so the ultrasonic wave has a beam characteristics similar to light waves.

The beam of the ultrasonic is generally measured by the size of the scattered angle (used to semi -transmitted horns). Taking a plane circular piston sound source as an example, its size determines the pairing (d) and the wavelength (λ) of the sound waves. It can be seen that in order to make the vocal emitter emitting the directional ultrasonic, the θ angle must be as small as possible. Otherwise, it will be counterproductive. Because the wavelength of the ultrasonic is shorter than the wavelength of listening sound, it has a better beam ejaculation characteristics than the sound waves. The higher the frequency, the shorter the wavelength. The more significant the characteristics of this spread in a certain direction.