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Method for implementing synchronizing collection, wireless sensor network system and synchronizing apparatus

A technology for wireless sensors and network systems, applied in the field of synchronous acquisition, wireless sensor network systems and synchronization devices, can solve the problems of inability to collect data, unable to ensure that wireless sensor network nodes synchronously collect data, time inconsistency, etc.

Active Publication Date: 2008-07-30
北京必创科技股份有限公司
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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 for implementing synchronizing collection, wireless sensor network system and synchronizing apparatus
  • Method for implementing synchronizing collection, wireless sensor network system and synchronizing apparatus
  • Method for implementing synchronizing collection, wireless sensor network system and synchronizing apparatus

Examples

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no. 1 example

[0028] FIG. 1 is a flowchart of a method for realizing synchronous acquisition provided by an embodiment of the present invention. As shown in Figure 1:

[0029] Step 101: each wireless sensor network node of the wireless sensor network system collects data.

[0030] This step can be implemented in the following ways:

[0031] The upper computer of the wireless sensor network system sends acquisition commands to the synchronization device of the wireless sensor network system;

[0032] The synchronization device obtains the current time after receiving the collection command, and sends the received collection command and the current time to each wireless sensor network node of the wireless sensor network system;

[0033] Each wireless sensor network node starts to collect data after receiving the collection command and the current time.

[0034] Step 102: the synchronization device of the wireless sensor network system receives the trigger message, and sends the trigger mes...

no. 2 example

[0049] FIG. 2 is a flowchart of a method for realizing synchronous acquisition provided by an embodiment of the present invention. as shown in picture 2:

[0050] 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.

[0051] Step 202: The synchronizing device acquires the current time after receiving the collection command, and sends the received collection command and the current time to each wireless sensor network node of the wireless sensor network system.

[0052] Step 203: After receiving the collection command and the current time, the wireless sensor network node starts to collect data.

[0053] In this step, after receiving the collection command and the current time, the wireless sensor network node may be in a trigger waiting state, that is, only use the low-power storage recording mode to collect data without sending data.

[0054] In the case of long-ter...

no. 3 example

[0066] Fig. 3 is a structural diagram of a wireless sensor network system provided by an embodiment of the present invention, as shown in Fig. 5:

[0067] 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 .

[0068] The host computer 301 is used to send a collection command to the synchronization device 302;

[0069] The synchronizing device 302 is used to send the collection command from the host computer 301 to the wireless sensor network nodes 303 , receive trigger messages, and send the trigger messages to each wireless sensor network node 303 .

[0070] The trigger message here may be a trigger message sent by a wireless sensor network node inside the wireless sensor network system, or a trigger message sent by an external network system when the external network nodes start to collect data at the sa...

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Abstract

The embodiment of the invention provides a method for implementing synchronization acquisition, a wireless sensor network system and a synchronization device. Every wireless sensor network node of the wireless sensor network system collects data; a synchronization device of the wireless sensor network system receives the trigger message which is sent to every wireless sensor network node; every wireless sensor network node begins to transmit or store the valid data which is collected by the wireless sensor network node after the wireless sensor network system receives the trigger message. The time when the synchronization device receives the trigger message is unique, so the wireless sensor network node collecting data at the same time can be 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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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08H04J3/06
Inventor 唐智斌张俊辉
Owner 北京必创科技股份有限公司
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