设置
快速交货
免运费
国际贸易术语
支付类型
市场产品
As wireless systems have become more integrated and lower in cost, more and more companies are seeking a competitive edge for their products through the addition of remote control features. Remote control is the act of controlling something at a distance. Remote Keyless Entry (RKE) is a form of remote control in which the device being controlled provides access to a secure location, like a car or garage door. Most systems are unidirectional (also called simplex or one-way). However, generation technologies are available for bidirectional communication (also called duplex or two-way). A simple remote control system consists of an encoder, RF transmitter, RF receiver, and a decoder. The encoder is connected to one or more buttons, switches or contacts. The encoder detects the closure of one of the switches and converts that into a digital data stream. This data is then sent to an RF transmitter that conveys this data into free space. An RF receiver receives the data and sends it to a decoder. The decoder analyzes the data and, if it is valid, replicates the switch closure on an output. This output is then connected to whatever circuitry is to be controlled.
