Basic explanation of remote control remote control lift rod

Time：2020-12-03 View：

Remote control refers to the technology of controlling remote controlled objects through communication media, which consists of operating device, coding device, sending device, channel, receiving device, decoding device and actuator, etc.

 

Basic information
It consists of operating device, coding device, sending device, channel, receiving device, decoding device, execution mechanism, etc. According to the channel medium, it is divided into wired remote control, wireless remote control and optical remote control; According to the transmission mode of control signal, it is divided into single channel remote control and multi-channel remote control, etc. Controlled objects are divided into medium-sized (such as factories, power stations, etc.) and decentralized (such as transmission lines, etc.) according to distribution positions.

 

Basic explanation
Remote control using radio, wired transmission or sound waves. The way to control the remote controlled object by using communication lines. Remote control is widely used in hydropower station, aircraft, aircraft and automatic production. It also refers to the remote control device. For example, this color TV is with remote control.

Other meanings
Technology for remote control and monitoring of controlled objects. Generally, it refers to the technology of controlling single or two extreme actions of remote controlled objects. Remote control is a comprehensive technology that uses automatic control technology, communication technology and computer technology. It has important applications in various sectors of the national economy, especially aerospace and missile nuclear weapons. Controlled objects can be fixed, such as automated hydropower stations; It can also be active, such as unmanned aircraft, artificial satellites, ballistic missiles, etc. Practical remote control system generally has monitoring function, actually it is a telemetry and remote control system. Generalized remote control also includes guidance. Generally speaking, the remote control is the command remote control, that is, the control terminal sends the control command to the controlled object through wired or wireless transmission, so that the controlled object acts according to the requirements of the control terminal. Signal transmission technology is a key technology of remote control. Wired remote control adopts cable, shielded wire or fiber optic transmission, which has strong anti-interference, but can only be used for fixed controlled objects. Wireless remote control adopts radio wave or laser beam transmission, which is mainly used for controlled objects of activities. Remote control often adopts multi-channel transmission. Multiple transmission can be time division, frequency division, and code Division. Time Division remote control transmits different control signals in a certain time sequence. Frequency Division remote control uses non-overlapping frequency bands to transmit different control signals at the same time, and then uses band-pass filters to separate them when reaching the controlled end. Code division remote control uses different codes to distinguish paths. Remote control signals can use analog signals or digital signals. Analog remote control also needs to transform analog control signals into a form suitable for channel transmission, but the equipment is simple and the cost is low, which can be used in occasions with low requirements. Digital remote control can use digital signal processing technology, with good accuracy and high reliability. It is the main development direction of remote control.

 

Industrial applications
In the monitoring system of hydropower plant, remote control refers to the control operation of the main station to the sub-station, corresponding to the opening, such as the operation of opening (stopping) machine and the operation of jumping (closing) gate.
Lift rod also has a remote remote lifting method.