Digital signal processing and application remote control lift rod

Time：2020-11-04 View：

 

Digital signal processing technology is one of the technologies needed by remote control lift rod.

 

Image signal processing
The application of image signal processing has penetrated into various fields of science and technology. For example, image processing technology can be used to study the trajectory of particles, the structure of biological cells, the state of landform, the analysis of meteorological cloud images, the composition of cosmic stars, etc. In the practical application of image processing, remote sensing image processing technology, tomographic imaging technology, computer vision technology and scene analysis technology have achieved great achievements. According to the application characteristics of image signal processing, the processing technology can be divided into several aspects such as image enhancement, restoration, segmentation, recognition, coding and reconstruction. These processing technologies have their own characteristics and are developing rapidly.

Vibration Signal processing
The analysis and processing technology of mechanical vibration signal has been applied to the research and production of automobile, airplane, ship, mechanical equipment, house building, dam design and other aspects. The basic principle of vibration signal processing is to add an exciting force on the test body as the input signal. Monitor the output signal at the measuring point. The ratio of the output signal to the input signal is called the transfer function (or transfer function) of the system composed of the test body. The so-called modal parameter identification is carried out according to the obtained transfer function, so as to calculate the main parameters such as modal stiffness and modal damping of the system. In this way, a systematic mathematical model is established. Then, the dynamic optimization design of the structure can be made. All these works can be carried out by digital processor. This method of analysis and processing is generally called modal analysis. In essence, it is a special method adopted by signal processing in vibration engineering.

 

Geophysical processing
In order to explore the oil, natural gas and other mineral deposits stored deep underground, seismic exploration methods are usually used to detect formation structure and lithology. The basic principle of this method is to impose artificial shock at a selected place. For example, if a vibration wave is generated by using the explosion method to spread to the underground, a reflected wave will be generated when the formation reaches interphase, place a column of sensors at a certain distance from the vibration source to receive the reflected waves reaching the ground. Judging the depth and structure of formation from the delay time and intensity of reflected wave. The seismic records received by the receptor are relatively complex and need to be processed before geological interpretation. There are many processing methods, including convolution method and homomorphic filtering method, which is a problem that is still being studied hard.

Biomedical treatment
In the aspect of biomedicine, signal processing is mainly used to assist the research of basic theories of biomedicine and to diagnose, examine and monitor. For example, it is used for basic theoretical research in aspects such as microbiology, neurology, cardiology, genetics, etc. Human brain nervous system consists of about 10 billion nerve cells, which is a very complex and huge information processing system. In this processing system, information transmission and processing are carried out in parallel and have special functions. Even if one part of the system is obstructed, other parts can still work, this is what computers cannot do. Therefore, the research on the information processing model of human brain has become an important topic of basic theoretical research. In addition, the study of nerve cell model, chromosome function and so on can be carried out with the help of the principle and technology of signal processing.
Signal processing is used for successful diagnosis and examination, including automatic analysis system of EEG or ECG, tomographic imaging technology, etc. Tomographic imaging technology is a major invention in the field of diagnostics. The basic principle of X-ray fault is that the two-dimensional projection of the object is formed after X-ray passes through the observed object. After receiving the receiver, after restoration or reconstruction, two-dimensional projection can be calculated in a series of different directions, and the fault information of the entity can be obtained through Operation processing, thus the fault image can be obtained on the large screen. The application of signal processing in biomedicine is in the stage of rapid development.
Digital signal processing has many applications in other aspects, such as radar signal processing and geological signal processing. Although they have their own special requirements, the basic technologies they use are roughly the same. In these aspects, digital signal processing technology plays a major role.