AFHDS3总体介绍和沿革发展

AFHDS3 Introduction

AFHDS3（第三代自动跳频数字系统）是2018富斯全新开发的一套具有自主知识产权的数字无线系统，该系统兼容单双向实时数据包传输和数据流透明传输两种方式（即具备AFHDS2A及WS2A无线系统的优点），使用全新2.4G芯片，通过RF高级模式功能，设定RF传输通道数量、各通道分辨率、距离需求、抗干扰需求、传输延时需求的简单操作，打造匹配用户需求的RF遥控系统，满足不同用户的需求。

AFHDS3 (Third Gen Automatic Frequency Hopping Digital System) is our newest and most advanced patented digital wireless protocol. AFHDS 3 combines the best of our AFHDS 2A and WS2A protocols, allowing for bidirectional real-time data packet transmission and lossless data stream transmission. In combination with our new 2.4GHz RF chip AFHDS 3 allows for a level of flexibility and adaptability never seen before, including dynamically setting and balancing the number of RF transmission channels, channel resolution, range, anti-interference requirements and latency in order to match the best use case for each customer.

 

 AFHDS3特色优势

Advantages of AFHDS 3

兼容单双向实时数据传输

Bidirectional Real-time Data Transmission

此系统具有双向通信功能，接收机接收发射机的数据之外，发射机能够收到接收机来自于温度，速度等多种传感器的回传数据，并支持i-BUS总线接收机，用户能够掌握模型当前的工作状态，进而增添了操控乐趣，使模型控制变得更加安全。

同时兼容单向通信，也可进行配对通信。

AFHDS 3 features two-way data transmission meaning that the transmitter and receiver can both send data to each other at the same time. This increases security and stability but also enables the use of a wide range of sensors and accessories, as well as expanding the capabilities of our i-BUS expansion system.

The system is also capable of one-way communication as well as binding in one-way configurations.

 

数据流透明传输

Passthrough Data Transmission

将独立透传模块实现的透传功能内置到遥控RF系统中，通过一套RF收发，实现遥控数据传输与透传数据传输，可用于飞控数据传输等。

Passthrough data transmission which has been added by an independent transmission module is built into the system, enables the system to take data from something like a flight controller and send it back to the transmitter or vice versa.

 

RF配置智能化

Intelligent Automatic RF Configuration

依据硬件特性、认证要求，以及产品对传输数据量、抗干扰、延时、距离要求，系统智能适配相应的RF配置，以满足需求。

When an AFHDS 3 module is inserted into a radio system it automatically detects the hardware, data transmission requirements, anti-interference needs, latency and range requirements as well as the certification the product has passed, then automatically configures itself to ensure the best performance for that product.

 

多频点跳频工作

Automatic Frequency Hopping

此系统工作频率范围为 2.402GHz 至 2.481GHz，根据需求RF配置智能化，通过RF配置的不同，开机时间不同、跳频规律不同和使用频点不同，主动避开同频干扰。

AFHDS 3 automatically frequency hops in the range of 2.402GHz to 2.481GHz, however depending on the outcome of the automatic RF setup which frequencies in that range that will be used will change. Not only that but each time the system is powered on both the frequencies and rules governing the hops will change to ensure that the change of interference is greatly reduced.

 

独立身份识别系统

Digital Authentication

此系统每个发射机和接收机都具有唯一的身份识别 ID；当与接收机进行对码后，此 ID 码被存放在接收机内；接收机工作时，首先会验证此 ID 码，若验证失败则不会工作。此项可加大系统的主动抗干扰能力，从而提升系统的稳定性。

Each transmitter and receiver have a unique ID. Once a transmitter and receiver are bound no other transmitter or receiver can send data to them. This increases the systems security and ant-interference capabilities as there can be no accidental crossover between systems.

 

低功耗

Low Power Consumption

此系统在采用低功耗、高灵敏度器件的同时，采用间隔数据发送的工作方式，有效提高发射效率，延长电池使用时间，使系统功耗降低至 FM 版本的十分之一。

AFHDS 3’s hardware uses low power components, strategic data transmission and high efficiency processing and amplifiers to extend battery life and reduce overall power consumption to a tenth of older FM systems.

 

AFHDS 3 FAQ

  • Is AFHDS 3 compatible with AFHDS 2A?

    No however it is possible to use an AFHDS 2A module with some of our radios (such as the PL18) to add AFHDS 2A compatibility.

  • What is the difference between AFHDS 3 and AFHDS 2A?

AFHDS 3 leverages advances in hardware and software to increase performance significantly over AFHDS 2A, as well as add new and improved features and flexibility.

  • How many channels can AFHDS3 handle?

    AFHDS 3 technically has no maximum limit to the number of channels it can use, however what is practical for each product will be different.

  • What is the relationship between latency and number of channels?

The more data that needs to be transmitted, the higher the latency. This means that using 3 channels with result in a lower latency than 18 channels.

  • How do I use passthrough data transmission?

Use the PC serial port assistant + UART to configure this function with the relevant modules.

  • Can AFHDS 3 use more than one receiver at a time.

It is possible to control more than one receiver in one-way mode.

  • What do you mean by “intelligent” or “smart” RF configuration?

The 3rd generation protocol opens up a lot of the RFIC internal configuration to the application layer. Depending on the product and use case the protocol is adapted to get the best balance for the user’s needs.

  • What is the difference between one and two-way transmission?

One-way only sends data from the transmitter to the receiver and can be used to control more than one receiver.

Two-way enables two-way communication between the transmitter and receiver.

  • What effect does the number of receiver’s have on the protocol.

None.