Please click here if you are not redirected within a few seconds. Here are some of the advantages of choosing to encode for your data: Encoding keeps your data safe since the files are not readable unless you have access to the algorithms that were used to encode it. This is a good way to protect your data from theft since any stolen files would not be usable. Encoding is an ideal solution if you need to have third parties access your archives but do not want to have everyone be able to access some sensitive files.
Since encoding removes redundancies from data, the size of your files will be a lot smaller. This results in faster input speed when data is saved. Since encoded data is smaller in size, you should be able to save space on your storage devices.
This is ideal if you have large amounts of data that need to be archived. Encoded data is easy to organize, even if the original data was mostly unstructured. This could be the easiest way to archive and organize your data in an automated manner. For example, encoders are widely used in industrial robots used in factories such as assembly robots, welding robots, automatic guided machines, and machining centers. However, most people have never seen the latest factory where industrial robots work all the time.
Various production facilities are used in factories that produce electrical appliances and automobiles. A computer controls machine tools that make parts from metal, and a single machine can do various things like cutting flat surfaces, drilling holes, and cutting grooves.
Such machine tools are called machining centers. The produced parts are sent to an assembly factory and automatically assembled by industrial robots such as dedicated assembly machines or arm type robots. The latest factories are fully automated and using computers and networks for all manufacturing processes of design, part processing, storage, management, transport, and assembly. IIndustrial robots free humans from dangerous and demanding work so-called 3Ds work , increase factory productivity, and stabilize product quality.
The most widely used and highly practical industrial robot is an articulated robot with multiple joints equivalent to human shoulders, elbows and wrists. It works like a human arm with pivot, rotation and slide movements.
The signal input from the controller is converted into motion by the actuator, and the robot is moved precisely. In industrial robots, by changing the end effector, it is possible to handle not only grabbing but also painting and welding. If you visit a robot or machine tool exhibition, you can actually see the articulated robots on display by various companies.
Motors are used as robot actuators because they are easy to miniaturize and have high accuracy. In actual cases, people use actuators with increased rotational force torque by integrating a reduction gear that works the same as a bicycle transmission to the output shaft of the motor and slowing down the rotational speed of the motor.
There is also an electric slider that generates a large force in the direction of movement by changing the movement from rotational to linear with a screw. You can also see these in exhibitions. There are so many types of motors, and so confusing.
We will focus on the motors that use encoders in this article. One example is a servomotor. The servomotor is the motor that is used in the servomechanism. The servomechanism is the mechanism that keeps the speed of continuous rotational motion or linear motion constant, or precisely controls the rotation angle and travel distance of one movement.
The servo motor consists of a brushless DC or AC motor, an encoder, and a servo amplifier also called a driver. The figure below shows the logic symbol of 4 to 2 encoder :. Each input line corresponds to each octal digit and three outputs generate corresponding binary code. The figure below shows the logic symbol of octal to binary encoder:. Each input line corresponds to the each decimal digit and 4 outputs correspond to the BCD code.
This encoder accepts the decoded decimal data as an input and encodes it to the BCD output which is available on the output lines.
Here, the input, Y3 has the highest priority , whereas the input, Y0 has the lowest priority. The truth table for priority encoder is as follows : The above two Boolean functions can be implemented as :. Drawbacks of Normal Encoders — There is an ambiguity, when all outputs of encoder are equal to zero.
If more than one input is active High, then the encoder produces an output, which may not be the correct code. So, to overcome these difficulties, we should assign priorities to each input of encoder. Then, the output of encoder will be the code corresponding to the active High inputs, which has higher priority. Uses of Encoders — Encoders are very common electronic circuits used in all digital systems.
Encoders are used to translate the decimal values to the binary in order to perform the binary functions such as addition, subtraction, multiplication, etc. Other applications especially for Priority Encoders may include detecting interrupts in microprocessor applications.
0コメント