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Ultra-low power consumption passive wake-up method and system

An ultra-low-power, low-power technology, applied in the field of ultra-low-power passive wake-up methods and systems, can solve problems such as increased power consumption, false triggering, and inability to properly solve power consumption and downlink communication delays, etc. Achieve the effect of power saving and real-time performance

Active Publication Date: 2019-07-30
ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing IoT sensor (sensor node, low-power node) access technology has designed different working modes for actual operation scenarios. Although it can basically meet the requirements, there are still the following problems: (1) It does not work well Solve the problem of power consumption and downlink communication delay. Although both energy saving and downlink communication delay are taken into account, there is a high probability of false triggering, resulting in increased power consumption; (2) There is no sensor interface optimized for the power Internet of Things. technology

Method used

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Embodiment 1

[0041] Such as Figure 1-4 The schematic structural diagram provided by the embodiment of the present invention is shown, and for the convenience of description, only the part related to the embodiment of the present invention is shown, and the embodiment is only a special example, which does not indicate such an implementation mode of the present invention. The ultra-low power consumption passive wake-up method of the present invention specifically includes steps:

[0042] S10, listening to air signals every t0 seconds;

[0043] S20, judging whether the field strength of the air signal is greater than the set threshold, if so, then perform step S30; if not, then perform step S40;

[0044] S30, enter the synchronization word waiting mode, and prepare to receive data;

[0045] S40, enter into a sleep mode.

[0046] The ultra-low power consumption passive wake-up method of the present invention combines the routing node and the low power consumption node, and the steps are sp...

Embodiment 2

[0075] Those of ordinary skill in the art can understand that all or part of the steps for implementing the above method embodiments can be completed by hardware related to computer programs. The foregoing computer program may be stored in a computer-readable storage medium, and a computer program is stored on the storage medium. When the computer program is executed (such as by a processor), the method comprising the above-mentioned embodiment of the ultra-low power consumption passive wake-up method is executed. step, and the aforementioned storage medium includes: ROM, RAM, magnetic disk or optical disk and other various media that can store program codes.

Embodiment 3

[0077] The present invention also provides an embodiment of an ultra-low power consumption passive wake-up device, including a processor and a memory; wherein, the memory is used to store a computer program, and the processor is used to execute the computer program stored in the memory, so that the processor can execute The steps of the above embodiment of the ultra-low power consumption passive wake-up method.

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Abstract

The invention discloses an ultra-low power consumption passive wake-up method and system. The method specifically comprises the steps: S10, monitoring air signals every t0 second; S20, judging whetherthe field intensity of the air signals is greater than a set threshold value or not, and if yes, executing the step S30; if not, executing the step S40; S30, entering a synchronous word waiting mode,and preparing to receive data; and S40, entering a sleep mode. The invention provides a passive wake-up mechanism of preamble sequence loading time slot information. Through special fragment design on the leader sequence of the wake-up sequence, the low-power-consumption node starts the shortest receiving time length to reliably receive the effective data and identifies that the invalid frame immediately returns to the sleep mode, the power consumption saving effect is achieved to the maximum extent, and the real-time performance of communication is considered.

Description

technical field [0001] The invention relates to the technical field of low power consumption, in particular to an ultra-low power consumption passive wake-up method and system. Background technique [0002] The Internet of Things is an important part of the new generation of information technology. Information technology has changed from the initial communication between people to the communication between things, and finally moved towards the direction of the Internet of Everything. In response to the development needs of the Internet of Things, many low-power Internet of Things wireless communication technologies have emerged. There are many low-power Internet of Things wireless communication technologies, which are mainly divided into two categories: one is short-distance communication technology represented by Zigbee, WiFi, and Bluetooth; the other is long-distance communication technology represented by LoRa and NB-IoT . [0003] The existing IoT sensor (sensor node,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L5/00H04W52/02
CPCH04L5/0048H04W52/0235H04W52/0225Y02D30/70
Inventor 李鹏肖勇金鑫张乐平罗鸿轩
Owner ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD
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