half duplex

简明释义

半双工半双工通信信道

英英释义

例句

1.In a half duplex 半双工 network, data can flow in both directions, but not simultaneously.

在half duplex 半双工网络中，数据可以双向流动，但不能同时进行。

2.Older telephone systems often functioned as half duplex 半双工, requiring users to take turns speaking.

旧式电话系统通常作为half duplex 半双工工作，要求用户轮流发言。

3.The radio system used by emergency services operates in half duplex 半双工 mode to ensure clear communication.

紧急服务使用的无线电系统以half duplex 半双工模式运行，以确保清晰的通信。

4.Some video conferencing tools use half duplex 半双工 audio, allowing one person to speak while others listen.

一些视频会议工具使用half duplex 半双工音频，允许一个人发言而其他人倾听。

5.In a walkie-talkie communication, users can only speak or listen at one time, which is an example of a half duplex 半双工 system.

在对讲机通信中，用户只能在一个时间点上说话或听取，这就是一个half duplex 半双工系统的例子。

作文

In the world of communication, understanding the various modes of data transmission is crucial for both technology enthusiasts and everyday users. One such mode is half duplex, which refers to a communication channel that allows data transmission in both directions, but not simultaneously. This means that while one device is sending data, the other must wait until the transmission is complete before it can send its own data. This concept is particularly relevant in various applications, including radio communications, walkie-talkies, and even some computer networks.To illustrate the idea of half duplex, consider the example of a conversation between two people using walkie-talkies. When one person presses the button to speak, their voice is transmitted to the other person, who must wait until the first person has finished speaking before they can respond. This back-and-forth exchange is a classic example of half duplex communication, where only one party can transmit at a time.The significance of half duplex lies in its efficiency and simplicity. In situations where simultaneous communication is not necessary, this mode can reduce complexity and save bandwidth. For instance, in a crowded environment where multiple users are trying to communicate, half duplex systems can help manage the flow of information without overwhelming the network.However, half duplex also has its limitations. The waiting time for each party to transmit can lead to delays in communication, which may be problematic in scenarios that require quick responses. For example, in emergency services, where every second counts, relying on half duplex communication could hinder the effectiveness of the response team.In contrast to half duplex, there is the concept of full duplex communication, where both parties can transmit and receive data simultaneously. This is akin to a regular phone conversation, where both individuals can talk and listen at the same time. Full duplex systems tend to be more efficient in terms of speed and responsiveness, making them ideal for high-demand applications such as video conferencing or online gaming.Despite its limitations, half duplex communication remains relevant in many fields. For instance, in industrial settings, machines often use half duplex protocols to communicate with each other, ensuring that data is transmitted without interference. Additionally, in wireless communication, half duplex is commonly used in protocols like the Ethernet, where devices take turns to send and receive data.In conclusion, the concept of half duplex is an essential part of understanding communication technologies. While it may not be as efficient as full duplex communication, its simplicity and effectiveness in certain scenarios make it a valuable method for data transmission. As technology continues to evolve, the principles of half duplex will undoubtedly remain significant in shaping how we communicate and share information in our increasingly connected world.

半双工是指一种通信通道，允许数据在两个方向上传输，但不能同时进行。这意味着当一个设备正在发送数据时，另一个设备必须等到传输完成后才能发送自己的数据。这个概念在无线电通信、对讲机以及一些计算机网络中尤为重要。