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A frequency hopping transmission method and system, receiving end device and sending end device

A technology of receiving end and sending end, which is applied in the computer field, can solve problems such as being susceptible to the influence of the working environment, unstable frequency hopping transmission, etc., achieving the effect of large clock deviation tolerance and overcoming technical defects

Active Publication Date: 2019-02-22
BEIJING TUSEN WEILAI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the existing frequency hopping technology requires the clocks of the sending end device and the receiving end device to be synchronized, that is, the starting point of work must be the same
However, in actual situations, due to the different clock sources and working environments of the sending end device and the receiving end device, and the clock source is easily affected by the working environment, it is necessary to frequently adjust the clocks of the two, and frequency hopping transmission unstable

Method used

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  • A frequency hopping transmission method and system, receiving end device and sending end device
  • A frequency hopping transmission method and system, receiving end device and sending end device
  • A frequency hopping transmission method and system, receiving end device and sending end device

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Embodiment 1

[0042] see figure 1 , is a schematic structural diagram of a frequency hopping transmission system provided by an embodiment of the present invention. The system includes a sending end device 1 and a receiving end device 2. The structures of the sending end device 1 and the receiving end device 2 may be the same or different, and this application does not Be strictly limited. The sending end device 1 and the receiving end device 2 communicate in a wireless manner, for example, through 2.4G frequency band communication.

[0043]The sending end device 1 is used to determine an effective communication channel with the receiving end device 2; and, taking the effective communication channel as the initial working channel to perform the following steps: start timing after the working channel is determined, and start timing After the first time length, the working channel sends data to the receiving end device 2. If the response information corresponding to the data fed back by the ...

Embodiment 2

[0068] In the embodiment of the present invention, the structure of the sending end device 1 is as follows Figure 7 As shown, the sending end device 1 includes a first processor 11, a first radio frequency transmission chip 12 and a first antenna 13:

[0069] The first processor 11 is configured to start timing after the working channel is determined, and write data information including data and the working channel to the first radio frequency transmission chip 12 within the first period of time after starting the timing; and, If the response information corresponding to the data fed back by the receiving end device is not received within the first period of time, then frequency hopping is performed to the next channel according to the preset frequency hopping sequence; the next channel is determined as the working channel and the foregoing steps are repeated;

[0070] The first radio frequency transmission chip 12 is configured to send the data to the receiving end device o...

Embodiment 3

[0075] In the embodiment of the present invention, the structure of the receiver device 2 can be as follows Figure 8 As shown, the receiver device 2 includes a second processor 21, a second radio frequency transmission chip 22 and a second antenna 23, wherein:

[0076] The second processor 21 is used to start counting when the working channel receives the data sent by the sending end device 1, and if the next data sent by the sending end device 1 is not received within the second time period after the timing, then proceed as scheduled Frequency hopping to the next channel according to the set frequency hopping sequence; use the next channel as the working channel to continue receiving the data sent by the sending end device 1, wherein the difference between the second duration and the first duration is less than the preset threshold;

[0077] The second radio frequency transmission chip 22 is configured to receive the data sent by the sending end device 1 on the working chann...

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Abstract

The invention discloses a frequency hopping transmission method, a frequency hopping transmission system, receiving equipment and transmitting equipment, and aims to solve the problem of instable conventional frequency hopping transmission. The frequency hopping transmission method comprises the following steps: transmitting data from transmitting equipment at a working channel within a first time length after timing starts; if no response information is received within the first time length, performing frequency hopping to a next channel; determining the next channel as a working channel, and repeating the former step; when receiving equipment receives the data transmitted from the transmitting equipment at the working channel, starting timing, performing frequency hopping to a next channel if next data are not received with a second time length, determining the next channel as the working channel, and repeating the former step. By adopting the scheme of the invention, consistence of frequency hopping is achieved without clock synchronization of the transmitting equipment and the receiving equipment, the transmitting equipment and the receiving equipment can have frequency hopping to a same working channel for communication within relatively short successive time delays, and the problem that frequency hopping transmission is instable as a conventional frequency hopping technique requires clock synchronization of the transmitting equipment and the receiving equipment is overcome.

Description

technical field [0001] The present invention relates to the computer field, in particular to a frequency hopping transmission method, a frequency hopping transmission system, a receiving end device and a sending end device. Background technique [0002] With the emergence of all kinds of wireless communication devices, people are freed from the shackles of wires, enriching the world and greatly improving work efficiency. In the field of wireless communication, the frequency band of 2.4G wireless communication is between 2.400GHZ and 2.4835GHZ. This frequency band is a free frequency band stipulated by the international community and does not need to pay any fees to relevant international organizations. Therefore, equipment working in this frequency band emerges in endlessly. In an indoor office environment, there may be multiple devices such as WIFI, Bluetooth, Zigbee and RF communication working in this frequency band at the same time, and interference between devices is in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/7136H04B1/7156H04B1/715
CPCH04B1/7136H04B1/715H04B1/7156
Inventor 王明孙杰
Owner BEIJING TUSEN WEILAI TECH CO LTD