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Hybrid communication method and system based on IEEE 802.15.4 and low power consumption Bluetooth dual protocol stacks

A low-power bluetooth, hybrid communication technology, applied in wireless communication, power management, energy reduction and other directions, can solve the problem of small data transmission, increase equipment cost, etc., to save equipment cost, high integration, small size Effect

Active Publication Date: 2019-03-15
苏芯物联技术(南京)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the disadvantage is that an additional Bluetooth module is added to the Zigbee device, which increases the cost of the device and can only transmit a small amount of data

Method used

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  • Hybrid communication method and system based on IEEE 802.15.4 and low power consumption Bluetooth dual protocol stacks
  • Hybrid communication method and system based on IEEE 802.15.4 and low power consumption Bluetooth dual protocol stacks
  • Hybrid communication method and system based on IEEE 802.15.4 and low power consumption Bluetooth dual protocol stacks

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Experimental program
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Effect test

Embodiment 1

[0068] Such as image 3 with Figure 4 As shown, a hybrid communication method based on IEEE 802.15.4 and Bluetooth low energy dual protocol stack is as follows:

[0069] Step 1: The device runs in 802.15.4 transmission mode by default, and uses the sleep wake-up mechanism to reduce power consumption;

[0070] Step 2: During the wake-up period, the device listens to the channel. If 802.15.4 data is received or 802.15.4 data needs to be sent, it will maintain the 802.15.4 mode for data transmission. According to whether the received data is a single packet or multiple packets, Judging whether the receiving is completed; judging whether the sending is completed according to whether the sending data is a single packet or multiple packets combined with the sending status register;

[0071] Step 3: During the wake-up period, when the 802.15.4 data transmission is completed, the device saves the 802.15.4 protocol stack and network parameters; the system calls the BLE protocol stac...

Embodiment 2

[0104] A hybrid communication system based on IEEE 802.15.4 and low-power bluetooth dual-protocol stack, the device is applied to the method of the above-mentioned embodiment 1; includes a processor on which the 802.15.4 protocol and the low-power bluetooth protocol are integrated , protocol stack switching module; the processor communicates with the protocol stack switching module to realize 802.15.4 transmission mode and BLE transmission mode;

[0105] The protocol stack switching module is preset with a protocol stack switching cycle, which is in the 802.15.4 protocol stack by default; when there is no data transmission in the current protocol stack mode, the protocol stack switching module releases the RAM memory of the original protocol stack according to the switching cycle, and then starts Apply for RAM memory for the new protocol stack, and start the new protocol stack by configuring the radio frequency module registers, and the switching process is successfully complet...

Embodiment 3

[0107] A hybrid communication system based on IEEE 802.15.4 and low-power Bluetooth dual-protocol stack, the device is applied to the method of the above-mentioned embodiment 1. In this embodiment, the wake-up time of the 802.15.4 device is set to 125 milliseconds, and the sleep time is 125 milliseconds. Set to 875 milliseconds; the time to transmit a data packet in the 802.15.4 protocol is about 8 milliseconds, while Bluetooth Low Energy can establish a connection, send data and disconnect in about 3 milliseconds; the 802.15.4 protocol stack and the BLE protocol The switching time of the stack is within the time range of microseconds; therefore, it is possible to switch from the 802.15.4 protocol stack to the BLE protocol stack during at least one 802.15.4 wake-up period, and then switch back to the 802.15.4 protocol stack from the BLE protocol stack The protocol stack is a complete set of protocol stack switching and hybrid communication process.

[0108] working principle: ...

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Abstract

The invention provides a hybrid communication method and system based on IEEE 802.15.4 and low power consumption Bluetooth dual protocol stacks. In the presence of low power consumption communicationrequirements, the IEEE 802.15.4 is used for performing communication and is switched to low power consumption Bluetooth for communication in the presence of large data volume communication requirements, a sensing device is in a 802.15.4 transmission mode by default, the IEEE 802.15.4 is periodically switched to the low power consumption Bluetooth to monitor whether Bluetooth data transmission exists. When the Bluetooth data transmission is found, the sensing device remains in a BLE transmission mode, establishes a connection with a Bluetooth device and transmits data, and immediately switchesback to the 802.15.4 transmission mode after the transmission is completed. The invention proposes a new dual protocol stack hybrid communication method, which integrates the IEEE802.15.4 and low power consumption Bluetooth dual protocol stacks on limited central processing unit and storage resources, can realize stable switching, and has the advantages of low power consumption communication and high-rate communication, the transmission rate is increased to 1 Mbps at most, the reliable transmission of large data volume in IEEE 802.15.4 devices, and the communication bandwidth, the stability and the power consumption characteristics are greatly improved.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a hybrid communication method and system based on dual protocol stacks of IEEE 802.15.4 and low-power bluetooth. Background technique [0002] With the rapid development of communication technology, people put forward the need to communicate within a few meters near the person, so that personal area network (personal area network, PAN) and wireless personal area network (wireless personal area network, WPAN) appeared. the concept of. The WPAN network establishes a wireless connection for devices within a short distance, and connects multiple devices within a few meters together wirelessly so that they can communicate with each other and even access LAN or the Internet. [0003] Introduction to IEEE 802.15.4 [0004] IEEE 802.15.4 is the basis of ZigBee, WirelessHART, MiWi and other specifications. It describes the physical layer and media access control protocol ...

Claims

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Application Information

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IPC IPC(8): H04W36/14H04W52/02H04W72/12H04W88/06
CPCH04W36/14H04W52/0248H04W72/1215H04W88/06Y02D30/70
Inventor 李波燕元超高卉石文斌刘长浩聂兰顺杨松贵
Owner 苏芯物联技术(南京)有限公司
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