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Method, wireless sensor network system and synchronization device for realizing synchronization collection

A wireless sensor and synchronization device technology, which is applied to synchronization devices, transmission systems, digital transmission systems, etc., can solve the problems of inability to ensure that wireless sensor network nodes can collect data synchronously, time inconsistency, and inability to collect data.

Active Publication Date: 2008-09-17
WUXI BEETECH SENSOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the time synchronization algorithm can be used to realize the clock consistency between the wireless sensor network nodes and the central node or gateway, so as to align the collected data in the subsequent processing, but due to the inconsistent time when the collection command arrives at each wireless sensor network node, it cannot Ensure that each wireless sensor network node collects data synchronously at a certain required time
[0005] It can be seen that the existing technology cannot realize that each wireless sensor network node collects data at the same time

Method used

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  • Method, wireless sensor network system and synchronization device for realizing synchronization collection
  • Method, wireless sensor network system and synchronization device for realizing synchronization collection
  • Method, wireless sensor network system and synchronization device for realizing synchronization collection

Examples

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no. 1 example

[0027] figure 1 The flow chart of the method for realizing synchronous acquisition provided by the embodiment of the present invention, such as figure 1 Shown:

[0028] Step 101: The upper computer of the wireless sensor network system sends a collection command to the synchronization device of the wireless sensor network system.

[0029] Step 102: After receiving the collection command, the synchronization device obtains the current time, uses the current time plus the preset time as the collection time, and sends the collection time and the collection command to each wireless sensor network node.

[0030] In this step, the synchronization device can obtain the current time in one of the following ways:

[0031] Way 1: The synchronization device obtains the current satellite time through GPS, and uses the current satellite time as the current time.

[0032] Mode 2: The synchronization device obtains the current reference time through a time reference circuit built with a c...

no. 2 example

[0045] figure 2 The flow chart of the method for realizing synchronous acquisition provided by the embodiment of the present invention, such as figure 2 Shown:

[0046] Step 201: The upper computer of the wireless sensor network system sends a collection command to the synchronization device of the wireless sensor network system;

[0047] Step 202: After receiving the collection command, the synchronization device acquires the current time, uses the current time plus a preset time as the collection time, and sends the collection time and the collection command to each wireless sensor network node.

[0048] In this step, any one of the following methods can be used to realize the step of obtaining the current time by the synchronization device described above:

[0049] Way 1: The synchronization device obtains the current satellite time through GPS, and uses the current satellite time as the current time.

[0050] Mode 2: The synchronization device obtains the current refe...

no. 3 example

[0068] image 3 A structural diagram of a wireless sensor network system for realizing synchronous acquisition provided by an embodiment of the present invention. Such as image 3 Shown:

[0069] The wireless sensor network system for realizing synchronous acquisition provided by the embodiment of the present invention includes: a host computer 301 , a synchronization device 302 and a wireless sensor network node 303 .

[0070] The host computer 301 is used to send acquisition commands to the synchronization device 302 of the wireless sensor network system.

[0071] The synchronization device 302 is used to receive the collection command from the upper computer 301, after receiving the collection command, obtain the current time, and use the current time plus the preset time as the collection time, and send the collection time and the collection command to each wireless sensor network Node 303.

[0072] The wireless sensor network node 303 is configured to receive the coll...

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Abstract

An embodiment of the invention provides a method for realizing the synchronous collection, a wireless sensor network system and a synchronizing device. An upper machine of the wireless sensor network system transmits a collection command to the synchronizing device of the wireless sensor network system. When the synchronizing device receives the collection command, the current time is obtained. The current time is added with the prearranged time for being taken as the collection time. The collection time and collection command are transmitted to each wireless sensor network node. Each wireless sensor network code begins to collect data in the collection time when the collection time and collection command are received. Through transmitting collection time and collection command to each wireless sensor network node, each wireless sensor network node is leaded to collect data when gets to the collection time, and further the data collection by each wireless sensor network node at a same time is realized.

Description

technical field [0001] The invention relates to data acquisition technology, in particular to a method for realizing synchronous acquisition, a wireless sensor network system and a synchronizing device. Background technique [0002] When the wireless sensor network system is collecting data, the upper computer sends a collection command to each wireless sensor network node through the central node or gateway. After receiving the collection command, the wireless sensor network node starts to collect data and transmits the collected data as needed. or storage. [0003] Regardless of the way of broadcasting or querying, the wireless sensor network nodes receiving commands will have receiving delays. For the multi-hop wireless sensor network topology, the time delay for the collection command to reach the peripheral wireless sensor network node will increase with the increase of the number of hops, so that the time for each wireless sensor network node to receive the collection...

Claims

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Application Information

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IPC IPC(8): H04L7/00H04L12/28H04B7/26
Inventor 唐智斌张俊辉
Owner WUXI BEETECH SENSOR
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