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Monitoring method of wireless equipment

A monitoring method and wireless device technology, applied in the input/output process of data processing, short-distance communication services, advanced technology, etc., can solve problems such as wasting bandwidth and power consumption, and cannot guarantee data integrity through the Bluetooth protocol, so as to reduce Bandwidth occupancy, effect of reducing power consumption

Active Publication Date: 2020-10-13
HANGZHOU NATCHIP SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as a listener, the integrity of the data cannot be guaranteed through the Bluetooth protocol.
In these designs, some are performed through the interaction between audio playback devices, but it may waste bandwidth and power consumption

Method used

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  • Monitoring method of wireless equipment
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  • Monitoring method of wireless equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Such as Figure 7 As shown, in this example, the CRC of the packet monitored by the second audio device cannot be successfully compared, that is, the data cannot be confirmed correctly, so the second audio device returns a monitoring status message to the first audio device before the next time slot , including NACK information of failure to receive, and summary information of 14 data packets.

[0046] The first audio device can correctly receive the 2DH5 packet, and correctly receive the monitoring status information sent by the second audio device. According to the correct received packets, the first audio device calculates summary information of 14 groups, and compares them with the received corresponding group summary information of the second audio device. The result of the comparison shows that except for the inconsistency of the summary information of packet 2, the other group summary information is consistent, indicating that the state of the second audio devic...

Embodiment 2

[0051] In this embodiment, the audio data packet sent by the wireless audio source device to the first audio device is a 2DH5 packet with a maximum payload length of 683 bytes. At the same time, the second audio device monitors the audio packets. In this embodiment, the packet CRC monitored by the second audio device cannot be successfully compared, that is, the data cannot be confirmed correctly, so the second audio device returns a monitoring status message to the first audio device before the next time slot, including Receive failed NACK information, and summary information of 14 data packets.

[0052] The first audio device can correctly receive the 2DH5 packet, and correctly receive the monitoring status information sent by the second audio device. According to the correct received packets, the first audio device calculates summary information of 14 groups, and compares them with the received corresponding group summary information of the second audio device. The result...

Embodiment 3

[0054] Such as Figure 8As shown, in this embodiment, the audio data packet sent by the wireless audio source device to the first audio device is a 2DH5 packet, and its payload length is up to 683 bytes. At the same time, the second audio device monitors the audio packets. In this implementation example, the second audio device listens to the correct packet, so the second audio device returns a monitoring status message to the first audio device before the next time slot, including ACK information of successful reception, and 14 data Summary information for the group.

[0055] The first audio device cannot correctly receive the 2DH5 packet, but correctly receives the monitoring status information sent by the second audio device. According to the correct received packets, the first audio device calculates summary information of 14 groups, and compares them with the received corresponding group summary information of the second audio device. The result of the comparison shows...

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Abstract

The invention discloses a monitoring method of wireless equipment. An existing wireless audio sharing method cannot guarantee the integrity of data through a Bluetooth protocol. According to the method, a wireless sound source device sends a data packet to a first audio device; the second audio device obtains the data packet through monitoring; monitoring condition information containing summary information of each data packet of the data packet is sent to the first audio equipment in the time slot after monitoring is completed; the division of the data packets and the extraction of the summary information are respectively processed according to the agreement of the first audio device and the second audio device, the receiving state of the first audio device and the monitoring state of thesecond audio device; the corresponding packet data information content is replaced according to the data packet serial number corresponding to the wrong packet data. According to the method providedby the invention, the first audio equipment is adopted to forward the corresponding error data packet instead of the whole data packet, so that the bandwidth occupation is effectively reduced, and power consumption is reduced.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, in particular to the technical field of wireless audio transmission, especially the field of classic bluetooth audio transmission, and relates to a monitoring method of a wireless device, which is applied to a complex network topology of three wireless audio devices. Background technique [0002] In the classic Bluetooth BR / EDR protocol, a piconet (Piconet) has only one master device (Master), and can bring up to seven slave devices (Slave), and each master device and each slave device form a Bluetooth link for data transmission. transmission. A typical ACL link that guarantees the correctness of data transmission can only be transmitted on the Bluetooth link between the master device and the slave device; the master device can broadcast that multiple slave devices can receive, but the broadcast content cannot be separated by each slave device acknowledgment, so there is no guaran...

Claims

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Application Information

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IPC IPC(8): H04R29/00H04W4/80G06F3/16
CPCG06F3/16G06F3/165H04R29/00H04W4/80Y02D30/70
Inventor 凌云唐露黄智杰叶丰
Owner HANGZHOU NATCHIP SCI & TECH