Data transmission method on basis of 433MhzRF

A data transmission method and data technology, applied in the field of data transmission, can solve the problems of high power consumption, low security, and inability to solve automatic networking, etc., and achieve the effects of reducing power consumption, high security, and low overall cost

Inactive Publication Date: 2014-11-19
SUZHOU ZHUOYONG INFORMATION TECH
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  • Abstract
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Problems solved by technology

But the biggest problem facing WiFi is low security and high power consumption
[0006] Due to the wide coverage of the 433 frequency band and no authorization restrictions, it can avoid interference with other wireless transmissions (Bluetooth, HomeRF) in the home market, and has low power consumption. It is suitable for wireless transmission of wearable devices, but the existing Transmission protocol, unable to solve the problem of automatic networking

Method used

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  • Data transmission method on basis of 433MhzRF
  • Data transmission method on basis of 433MhzRF

Examples

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Embodiment Construction

[0025] In order to deepen the understanding of the present invention, the present invention will be further described below in conjunction with the examples and accompanying drawings. The examples are used to explain the present invention and do not constitute a limitation to the protection scope of the present invention.

[0026] figure 1 Implement the step-by-step process for the specific frequency hopping method: after the device is powered on, set the mode of the corresponding RF module for different devices. The RF module at the transmitter is set to transmit mode; the transmitter performs CRC check on the data to be sent, sends the data, and waits for the response from the receiver. If a correct response is received, the data transmission ends. If no response is received, skip to the next frequency band and repeat the sending process. If the correct response is not received within the specified 2 seconds, it means that the receiving end is in a shutdown state, or the cu...

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Abstract

The invention discloses a data transmission method on the basis of a 433Mhz private wireless automatic networking protocol. The data transmission method adopts the 433Mhz wireless private transmission protocol, not only reduces power consumption, but also is beneficial to high-reliability transmission on transmitted audio and video data due to simplicity, independence, low requirements for a microprocessor, low integral cost and higher safety of the private protocol, and not only avoids high development cost of Bluetooth and wifi (Wireless Fidelity), but also reduces power consumption of equipment; and meanwhile, the used frequency-hopping spread spectrum technology is not only beneficial for solving the problem of signal interference and greatly improves data detection efficiency of a frequency band, but also improves safety of data transmission.

Description

technical field [0001] The invention relates to a data transmission method, in particular to a data transmission method based on 433MhzRF. Background technique [0002] As the Internet of Things enters people's lives, RF technology is also getting more and more applications. Currently the most common wireless technologies include Bluetooth, Wi-Fi, ZigBee and proprietary protocols. [0003] Bluetooth technology has a long transmission distance and high security, but the high requirements for microprocessors and protocol licenses have kept product prices high, which is still unaffordable for most domestic consumers. [0004] Although ZigBee reduces power consumption and cost, its transmission speed is low and can only reach a bandwidth of 200kbps, which cannot meet the bandwidth requirements for transmitting audio and video data. [0005] WiFi is currently the most widely used technology in 2.4G wireless transmission. Compared with Bluetooth technology, it not only has a hig...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W80/06H04W84/18
CPCY02D30/70
Inventor 陈新
Owner SUZHOU ZHUOYONG INFORMATION TECH
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