What is the simple working principle of the camera?
The basic principle of the camera was to convert optical image signals into electrical signals for storage or transmission. When shooting an object, the light reflected from the object is collected by the camera lens and focused on the light receiving surface of the camera device. The light is converted into electrical energy by the camera device to obtain a "video signal". Because the optical signal was very weak, it needed to be amplified by the pre-amplifier circuit, and then processed and adjusted by various circuits. The final standard signal could be sent to a recording medium such as a video recorder, or transmitted through a transmission system or sent to a monitor for display. In addition, the working principle of some modern cameras involved more links. For example, the Sensor image sensor in the camera first sensed the external light and converted it into an image, then transmitted the data to the SoC (System on a Chip) for unified pre-processing, such as drying, enhancing contrast, adjusting color, etc. Then it was transferred to the AI module, using pre-trained algorithms to analyze the image and classify the output results. There were also some special-purpose cameras. For example, the intelligent drip recognition camera in the factory determined whether a liquid drip event occurred through a predetermined drip detection algorithm and pattern recognition technology. The automatic water level monitoring camera continuously captured water surface images and used image processing algorithms to extract water level information. Read more exciting novels for free
The oldest camera principle
The oldest camera used optical principles to record images. Early cameras required the use of negative film (videotape) to record, and the principle of imaging was the same as that of ordinary cameras. For example, in 1874, France's Jules Jansan invented a camera. He wound the sensitive film on a toothed feeding tray. Under the control of a pendulum mechanism, the feeding tray intermittently fed the film in the circular feeding box. At the same time, the pendulum mechanism drove the shutter to rotate. Whenever the film stopped, the shutter opened for exposure. The invention of this early camera laid the foundation for the later development of camera technology. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The principle of camera formation
The principle of a movie camera is the same as that of a normal camera. Take the camera as an example. It was based on the principle of small hole imaging. According to the straight line transmission property of light, a plate with a small hole was used to block between the object and the screen. An inverted image of the object would be formed on the screen. The camera replaced the screen with a negative film device. A closed black space was formed between the plate and the small hole to block the non-imaging light. The small hole was replaced with a lens, and the zooming lens was used to imitate the plate that could move back and forth to control the image size. The camera was a device that converted the light image of the scene into an electrical signal. Its structure was roughly divided into an optical system (mainly a lens), an optical conversion system (camera tube or solid-state camera device), and a circuit system (Media Processing Service circuit). The light entered the sensor through the lens and was then converted into a digital signal that was pre-processed by the built-in signal processor. The processed digital signal was compressed by the compression chip and finally sent to the network through the network interface for transmission. In the electro-optical conversion system, the object is refracted by the lens of the optical system to form a "focal point" on the imaging surface. The light-sensitive element transforms the optical image outside the "focal point" into an electrical signal carrying a charge, and then it is amplified by the circuit system to form a signal that meets the requirements and is output. The main function of the security lens was to collect the reflected light of the object being photographed and focus it on the CCD. The image projected onto the CCDwas inverted, and the camera circuit had the function of reversing it. The imaging principle was the same as that of the human eye. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The working principle of oil extraction
The working principle of oil extraction included geological exploration, drilling, oil extraction, and transportation. The location and nature of the oil reservoir can be determined through geological survey and geological survey. Well drilling was the process of passing a drill bit through the earth and into the oil reservoir. Oil extraction was the process of extracting oil from a reservoir. Transportation was the process of transporting the extracted oil to its destination. The specific mining methods included natural pressure mining, artificial pumping, water flooding, and gas flooding.
The working principle of 2D and 3D
The working principles of the 2D and 3D are different. You can refer to the following explanation: Two-dimensional refers to the fictional two-dimensional world that usually appears in anime, comics, games, and other media. In the 2D world, characters, scenes, and things were flat, and the colors and shapes were simple geometric shapes. The working principle of 2D was based on the projection principle by projecting an image onto a two-dimensional plane to create a virtual world. The three-dimensional world refers to the real world we live in. In the three-dimensional world, characters, scenes, and things were all three-dimensional, and the colors and shapes were all complicated. The working principle of the three-dimensional world was based on the principle of perspective. By observing an object from different angles and distances, one could obtain its shape, size, position, and other characteristics. Therefore, the difference between the working principle of 2D and 3D was that they were based on different principles and presentation methods.
The working principle of the cvl transmission
The CVS transmission was mainly composed of two variable diameter rollers (shaped like a pair of cones) and a steel belt or chain. One of the rollers was connected to the engine (power input) and the other was connected to the drive shaft (power output). During operation, the transmission ratio was changed by changing the diameter of the rollers (that is, the contact diameter between the cone and the steel belt or chain). For example, when driving at a low speed, the diameter of the input end of the wheel was smaller and the speed was higher, while the diameter of the output end of the wheel was larger and the speed was lower. As the speed of the car increased, the diameter of the two wheels changed, causing the speed of the output end of the wheel to increase. According to the different power transmitting devices, it could be divided into steel belt CVs and chain CVs. When the steel-belt CVS works, the driving cone wheel presses the side of the steel belt formed by the overlapping of the metal sheets and the metal rings to form static friction force, and the hardness between the push sheet materials is used to form thrust force, so that the steel belt drives the driven cone wheel to rotate to transmit power. When the driving wheel is clamped to the middle by the oil pressure device, the steel belt moves upward along the side wall, the circumference of the driving wheel increases, and the circumference of the driven wheel decreases, thus realizing the amplification of the engine's torque-force. The chain of the chain-type CVS was composed of a ring-shaped steel sheet and a pull piece. When it worked, the chain did not directly contact the cone wheel, but the middle rocking arm pin was pressed to achieve the transmission of the moment. The novel "Watching the Moon on Fish Island" is equally exciting. Everyone is welcome to click and read it!
USB live camera principle
The principle of the old-fashioned camera
The principle of old-fashioned cameras was to convert optical image signals into electrical signals for easy storage or transmission. When shooting an object, the light reflected on the object is collected by the camera lens, so that it is focused on the light receiving surface of the camera device (such as the target surface of the camera tube), and then the light is converted into electrical energy through the camera device, thereby obtaining a "video signal". Since the optical signal was very weak, it needed to be amplified by a pre-amplifier circuit, and then processed and adjusted by various circuits. The final standard signal could be sent to a recording medium such as a video recorder for recording, or transmitted through a transmission system, or sent to a monitor for display. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The working principle of Bluetooth is easy to understand
Bluetooth works by connecting devices through radio waves, allowing them to communicate over short distances. The Bluetooth device includes a Bluetooth module, a Bluetooth radio, and software. When two Bluetooth devices wanted to communicate with each other, they needed to pair up. Communication between Bluetooth devices was carried out in a short-range temporary network that could accommodate two to eight devices. After the network environment was successfully created, one device would be the master device, and the other devices would be the slave devices. Different types of Bluetooth technology had different versions of the core specifications. Bluetooth uses the 2.4-gigasecond radio frequency band for communication, which is divided into multiple small channels to avoid interference. Bluetooth's global usefulness and low power requirements made it a popular standard for connecting all kinds of devices, from consumer electronics to business applications to Internet of Things devices.
Deep-Sea Submersible Working Principle
Different types of deep-sea submarines worked differently. For some simple diving simulation devices, such as a device that put a small glass bottle half filled with water into a big bottle, when the bottle was squeezed by hand, the water would enter the small bottle mouth and squeeze the air in the bottle, making the drainage volume smaller. When the gravity was greater than the buoyancy, the water would fall. When the bottle was released, the air volume would expand, and the buoyancy would rise when the gravity was greater than the gravity. The Dragon and other deep-sea manned submarines had ballasting iron. In the early stage, they were negative in buoyancy. After entering the sea, they began to sink. After all the work was completed, the submariners threw away the ballasting iron, became positive in buoyancy, and began to rise. This was because the deep-sea submarine was deep and the environmental pressure was high. The compressed air was not enough to force out the seawater in the air cabin, so the method of abandoning the ballasts was used to float up. Generally, the electromagnetic control was used to control the ballasting iron. If the deep-sea submarine lost power and the electromagnetic was ineffective, the ballasting iron would automatically separate from the submarine under the effect of gravity and make the submarine float. In terms of safety, Dragon's design not only included throwing away the ballasting iron, but also heavy objects such as the battery box and the sample basket. If it was entangled by seaweed, it could also abandon the robotic arm, and the alarm system could also send a float to the surface to seek rescue from the mother ship. In addition, the Endeavor used a cable-less and unpowered floating and diving technology. Generally speaking, the diving method of a deep-sea submarine was the same as that of a submarine. They both injected seawater into the air cabin, but the method of surfacing was different. Moreover, the deep-sea submarine was not completely autonomous. It had to rely on the mother ship to replenish energy and air. The novel " Flood Dragon " is equally exciting. Everyone is welcome to click and read it!
Working principle of retro reflective sensor
The retro reflective sensor is composed of a light transmitter and a light receiver. The transmitter emitted a beam of light, which was reflected and received by the receiver. When an object was detected, the object would block the light, causing the light received by the receiver to weaken or disappear. Then, according to the intensity of the light received by the receiver, it was determined whether the object was detected. This type of sensor is suitable for detecting opaque objects and is not easily disturbed by environmental light. When it was used, the light transmitter and light receiver needed to be installed on the same side, and the object was placed on the other side of the sensor. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>