People get various information from nature, in which people's visual acquisition is the highest, accounting for 80% of the total information. With the development of information technology, human visual function is given to computers, robots, or other intelligent machines, and has become the goal of scientists. At present, machine vision technology has achieved productization. Visual sensors, lens, high-speed cameras, light sources, image software, image capture cards, visual processors, etc. have become increasingly perfect.
The camera lens is an indispensable component in the machine vision system, which directly affects the quality of the image. Cameral lenses can be divided into short focal length, medium focal length, and long focal length. From the field of view, there are wide-angle, standard, and telephoto lenses. In terms of structure, there are fixed-aperture fixed-focus lenses and manual-aperture fixed-focus lenses, auto-iris fixed-focus lens, manual zoom lens, automatic zoom lens, auto-iris electric zoom lens, electric three-variable lens, etc.
MEMS, also called micro-electro-mechanical system or micro-system, refers to high-tech devices with dimensions of a few millimeters or even smaller. The internal structure of MEMS is generally on the order of micrometers or even nanometers. A micro-electromechanical system is a micro-device or system that integrates micro-sensor, micro-actuator, micro-mechanical structure, micro-power supply, micro-energy, signal processing and control circuit, high-performance electronic integrated device, interface, and communication.
A solid-state drive (SSD) is a hard drive made of solid-state electronic memory chip arrays. SSD is composed of a control unit and storage unit (FLASH chip, DRAM chip). Solid-state drives are widely used in many fields such as military, vehicle, industrial control, video surveillance, network monitoring, network terminals, electric power, medical treatment, aviation, navigation equipment, and so on.
An accelerometer sensor is a sensor that can measure acceleration. It is usually composed of masses, dampers, elastic components, sensitive components, and adaptive circuits. In the process of acceleration, the sensor obtains the acceleration value by using Newton's second law, measuring the inertial force on the mass block. According to the different sensitive components of the sensor, common accelerometer sensors include capacitive, inductive, strain gauge, piezoresistive, piezoelectric and so on.
The inverter is a converter that converts DC electric energy into constant frequency and constant voltage AC or Frequency and voltage modulation AC. It is composed of an inverter bridge, control logic, and filter circuit. Inverters are widely used in air conditioners, home theaters, electric grinding wheels, power tools, DVDs, VCD, computers, TVs, washing machines, range hoods, refrigerators, video recorders, massagers, fans, lighting, etc.