RF模块（射频模块）是（通常）小型电子设备，用于在两个设备之间发送和/或接收无线电信号。在嵌入式系统中，通常需要与另一个设备进行无线通信。该无线通信可以通过光通信或通过射频RF模块通信来实现。对于许多应用，选择介质是RF，因为它不需要视线。射频通信包含一个发射器和一个接收器。
射频模块的特点：
1.成本低
无线数据传输模块建立了专用的无线数据传输模式，既节省了人力和物力，又节省了投资。
2.工期短
要使用数据传输模块建立专用的无线数据传输方法，只需安装适当高度的天线，工程周期只需几天或几周。相比之下，无线方法可以快速建立通信链接，并且工程周期大大缩短。
3.适应性强
使用无线数据传输模块来建立专用的无线数据传输方法将比有线通信具有更好，更广泛的适应性，并且几乎不受地理环境的限制。
4.良好的可扩展性
如果使用无线数据传输站来建立专用的无线数据传输方法，则仅通过将新设备与无线数据传输站连接就可以实现系统的扩展，相比之下具有更好的可扩展性。
5.设备维护
有线通信链路的维护需要沿线进行检查。当发生故障时，通常很难找到故障的时间点。然而，使用无线数据传输模块来建立专用的无线数据传输方法仅需要维护数据传输模块，并且可以在发生故障时迅速找到它。如果找到原因，则设备可以及时恢复正常。
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RF module (RF module) is a (usually) small electronic device used to send and / or receive radio signals between two devices. In embedded systems, wireless communication with another device is usually required. The wireless communication can be realized by optical communication or by RF module communication. For many applications, the medium of choice is RF because it does not require a line of sight. RF communication consists of a transmitter and a receiver.

Features of RF module:

1. Low cost

The wireless transmission mode saves both manpower and material resources.

2. Short construction period

To use the data transmission module to establish a special wireless data transmission method, it only needs to install an antenna of appropriate height, and the engineering cycle only needs a few days or weeks. In contrast, the wireless method can quickly establish communication links, and the engineering cycle is greatly shortened.

3. Strong adaptability

Using wireless data transmission module to establish a special wireless data transmission method will have better and wider adaptability than wired communication, and is almost not limited by geographical environment.

4. Good scalability

If the wireless data transmission station is used to establish a special wireless data transmission method, the expansion of the system can be realized only by connecting the new equipment with the wireless data transmission station, which has better scalability.

5. Equipment maintenance

The maintenance of wired communication link requires inspection along the line. When a fault occurs, it is usually difficult to find the time point of the fault. However, using the wireless data transmission module to establish a dedicated wireless data transmission method only needs to maintain the data transmission module, and it can be found quickly in case of failure. If the cause is found, the equipment can return to normal in time.
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