CN102088717A - Method, device and system for screening data - Google Patents
Method, device and system for screening data Download PDFInfo
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- CN102088717A CN102088717A CN2009102420656A CN200910242065A CN102088717A CN 102088717 A CN102088717 A CN 102088717A CN 2009102420656 A CN2009102420656 A CN 2009102420656A CN 200910242065 A CN200910242065 A CN 200910242065A CN 102088717 A CN102088717 A CN 102088717A
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Abstract
The present invention discloses a method, a device and a system for screening data. The present invention relates to the mobile communication field and solves the problem that confirmation information is processed with a low efficiency. The method comprises the steps as follows: a label node receives the confirmation information sent by at least one beacon node, wherein the confirmation information contains a node number of the beacon node and a received signal strength indicator (RSSI) value; and the label node selects at least one beacon node as the node to be ranged according to the RSSI value. The technical scheme provided by the method in the present invention is suitable for a wireless sensor network.
Description
Technical field
The present invention relates to moving communicating field, relate in particular to a kind of data screening methods, devices and systems.
Background technology
Develop rapidly along with MEMS (micro electro mechanical system), SOC (system on a chip), radio communication and low-power-consumption embedded technology is pregnant with wireless sensor network, and has brought a change of information perception with its low-power consumption, low cost, characteristics distributed and self-organizing.Wireless sensor network is exactly to form by being deployed in cheap microsensor nodes a large amount of in the monitored area, by a multihop self-organizing network of communication formation.
Wireless sensor network is that a kind of brand-new information is obtained platform, can monitor in real time with the collection network distributed areas in the information of various detected objects, and these information are sent to gateway node, to realize that complicated specified scope internal object detects and follows the tracks of, have characteristics such as rapid deployment, survivability be strong, wide application prospect is arranged.
Realization is monitored in real time by wireless sensor network and during information gathering, at first need to determine the precise position information of each node in the wireless network, and general node is numerous in the wireless sensor network, the node distribution is extensive, indoor and outdoor channel circumstance complexity, node has mobility, and interference that therefore a large amount of targets cause and conflict are easy to take place.
Summary of the invention
The invention provides a kind of data screening methods, devices and systems, solved the problem low the confirmation treatment effeciency.
A kind of data screening method in wireless sensor network, comprising:
Label node receives the affirmation information that at least one beaconing nodes sends, and comprises node number and acknowledge(ment) signal intensity indication (RSSI) value of described beaconing nodes in described confirmation;
Described label node selects at least one beaconing nodes as measured node according to the RSSI value.
Further, described label node selects at least one beaconing nodes to comprise as measured node according to the RSSI value:
Described label node sorts at least one beaconing nodes according to RSSI value order from small to large;
Measured node according to RSSI value selective sequential predetermined number from small to large.
Further, described label node receives before the step of the affirmation information that at least one beaconing nodes sends, and also comprises:
Described label node is initiated beaconing nodes search broadcasting, and indication receives the beaconing nodes of this broadcasting and replys confirmation.
Further, described label node receives before the step of the affirmation information that at least one beaconing nodes sends, and also comprises:
The quantity of measured node is set.
Embodiments of the invention also provide a kind of label node, in wireless sensor network, comprising:
Information receiving module is used to receive the affirmation information that at least one beaconing nodes sends, and comprises the node number and the RSSI value of described beaconing nodes in described confirmation;
Node screening module is used for the value according to RSSI, selects at least one beaconing nodes as measured node.
Further, described node screening module comprises:
Sequencing unit is used for according to RSSI value order from small to large at least one beaconing nodes being sorted;
The node selected cell is used for the measured node according to RSSI value selective sequential predetermined number from small to large.
Further, above-mentioned label node also comprises:
The broadcasting initiation module is used to initiate beaconing nodes search broadcasting, and indication receives the beaconing nodes of this broadcasting and replys confirmation.
Further, also comprise by stating label node:
Number of nodes is provided with module, is used to be provided with the quantity of measured node.
Embodiments of the invention provide a kind of data screening system, comprise label node and at least one beaconing nodes;
Described label node is used to receive the affirmation information that at least one beaconing nodes sends, and comprises the node number and the RSSI value of described beaconing nodes in described confirmation, according to the RSSI value, selects at least one beaconing nodes as measured node.
Further, described label node also is used to initiate beaconing nodes search broadcasting, and indication receives the beaconing nodes of this broadcasting and replys confirmation;
Described beaconing nodes is used for sending confirmation, the node number and the RSSI value of carrying this beaconing nodes in described confirmation to the label node of initiating this broadcasting after receiving described beaconing nodes search broadcasting.
Embodiments of the invention provide a kind of data screening methods, devices and systems, receive the affirmation information that beaconing nodes sends by label node, and according to the RSSI value in this confirmation, select at least one beaconing nodes as measured node, a kind of screening technique when receiving a large amount of confirmation is provided, saved the information sifting time, improved the efficient of node range finding, solved the problem low the nodal information treatment effeciency.
Description of drawings
Fig. 1 is the structural representation of the network of embodiments of the invention use;
The flow chart of a kind of data screening method that Fig. 2 provides for embodiments of the invention;
The structural representation of a kind of label node that Fig. 3 provides for embodiments of the invention;
Fig. 4 is the structural representation of node screening module 302 among Fig. 3;
The structural representation of a kind of label node that Fig. 5 provides for another embodiment of the present invention;
The structural representation of a kind of label node that Fig. 6 provides for another embodiment of the present invention;
The structural representation of a kind of data screening system that Fig. 7 provides for embodiments of the invention.
Embodiment
Embodiments of the invention provide a kind of data screening method, in the time need positioning to each label node in the wireless sensor network, can finish the screening of the affirmation information that beaconing nodes is sent by this method, the high efficiency beaconing nodes that can find range of obtaining, and then finish range finding and label node is located.The network system that embodiments of the invention use comprises at least one label node 101, at least one beaconing nodes 102 and information aggregation node (Sink) 103 as shown in Figure 1.Wherein, label node 101 is specially portable terminal, and beaconing nodes 102 is the base station, and information aggregation node 103 also is the base station, but generally speaking, in a wireless sensor network, only has an information aggregation node, specifically can specify when system initialization.
When needs are found range, at first initiate range finding by the information aggregation node, collect relevant information and screening by label node then, the process that a kind of data screening method of using embodiments of the invention to provide is finished the confirmation screening comprises as shown in Figure 2:
In this step, the information aggregation node is by beaconing nodes, and each label node in the informing network is initiated range finding, specifically can send synchronization frame to each label node.
In this step, label node is initiated range finding after the notice that receives the information aggregation node, is specially to initiate beaconing nodes search broadcasting, and indication receives the beaconing nodes of this broadcasting and replys confirmation.
In this step, beaconing nodes in the label node range of signal receives beaconing nodes search broadcasting, and to the label node answer acknowledge message of sending this broadcasting, in acknowledge message, carry the node number and the acknowledge(ment) signal intensity indication (RSSI, Received Signal Strength Indicator) of this beaconing nodes.
In this step, label node therefrom extracts the sign and the corresponding RSSI value of beaconing nodes after the affirmation message that receives the beaconing nodes answer, and sorts according to the size of RSSI value, according to RSSI value order from small to large, choose at least one beaconing nodes as measured node.
The quantity of measured node can dispose when system initialization, is configured to 3 to 4 generally speaking, to guarantee when reducing the range finding workload as far as possible, has also taken into account range finding result's accuracy.
After having determined measured node, just can find range to these beaconing nodes, label node is after finishing range finding, and by the beaconing nodes of its ownership, the result that will find range reports the information aggregation node.
Embodiments of the invention also provide a kind of label node, and its structure comprises as shown in Figure 3:
Further, the structure of described node screening module 302 comprises as shown in Figure 4:
Sequencing unit 3021 is used for according to RSSI value order from small to large at least one beaconing nodes being sorted;
Node selected cell 3022 is used for the measured node according to RSSI value selective sequential predetermined number from small to large.
Further, the structure of above-mentioned label node also comprises as shown in Figure 5:
Further, the structure of above-mentioned label node also comprises as shown in Figure 6:
Number of nodes is provided with module 304, is used to be provided with the quantity of measured node.
Embodiments of the invention also provide a kind of data screening system, and its structure comprises label node 701 and at least one beaconing nodes 702 as shown in Figure 7;
Described label node 701 is used to receive the affirmation information that at least one beaconing nodes 702 sends, and comprises the node number and the RSSI value of described beaconing nodes 702 in described confirmation, according to the RSSI value, selects at least one beaconing nodes as measured node.
Further, described label node 701 also is used to initiate beaconing nodes search broadcasting, and indication receives the beaconing nodes of this broadcasting and replys confirmation;
Described beaconing nodes 702 is used for sending confirmation, the node number and the RSSI value of carrying this beaconing nodes in described confirmation to the label node 701 of initiating this broadcasting after receiving described beaconing nodes search broadcasting.
Above-mentioned label node and data screening system, can combine with a kind of data screening method that embodiments of the invention provide, receive the affirmation information that beaconing nodes sends by label node, and according to the RSSI value in this confirmation, select at least one beaconing nodes as measured node, a kind of screening technique when receiving a large amount of confirmation is provided, saved the information sifting time, improved the efficient of node range finding, solved the problem low the nodal information treatment effeciency.
One of ordinary skill in the art will appreciate that and realize that all or part of step that the foregoing description method is carried is to instruct relevant hardware to finish by program, described program can be stored in a kind of computer-readable recording medium, this program comprises one of step or its combination of method embodiment when carrying out.
In addition, each functional unit in each embodiment of the present invention can adopt the form of hardware to realize, also can adopt the form of software function module to realize.If described integrated module realizes with the form of software function module and during as independently production marketing or use, also can be stored in the computer read/write memory medium.
The above-mentioned storage medium of mentioning can be a read-only memory, disk or CD etc.
The above; only be the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the described protection range of claim.
Claims (10)
1. a data screening method is characterized in that, in wireless sensor network, comprising:
Label node receives the affirmation information that at least one beaconing nodes sends, and comprises node number and acknowledge(ment) signal intensity indication (RSSI) value of described beaconing nodes in described confirmation;
Described label node selects at least one beaconing nodes as measured node according to the RSSI value.
2. data screening method according to claim 1 is characterized in that, described label node selects at least one beaconing nodes to comprise as measured node according to the RSSI value:
Described label node sorts at least one beaconing nodes according to RSSI value order from small to large;
Measured node according to RSSI value selective sequential predetermined number from small to large.
3. data screening method according to claim 1 is characterized in that, described label node receives before the step of the affirmation information that at least one beaconing nodes sends, and also comprises:
Described label node is initiated beaconing nodes search broadcasting, and indication receives the beaconing nodes of this broadcasting and replys confirmation.
4. data screening method according to claim 1 is characterized in that, described label node receives before the step of the affirmation information that at least one beaconing nodes sends, and also comprises:
The quantity of measured node is set.
5. a label node is characterized in that, in wireless sensor network, comprising:
Information receiving module is used to receive the affirmation information that at least one beaconing nodes sends, and comprises the node number and the RSSI value of described beaconing nodes in described confirmation;
Node screening module is used for the value according to RSSI, selects at least one beaconing nodes as measured node.
6. label node according to claim 5 is characterized in that, described node screening module comprises:
Sequencing unit is used for according to RSSI value order from small to large at least one beaconing nodes being sorted;
The node selected cell is used for the measured node according to RSSI value selective sequential predetermined number from small to large.
7. label node according to claim 5 is characterized in that, also comprises:
The broadcasting initiation module is used to initiate beaconing nodes search broadcasting, and indication receives the beaconing nodes of this broadcasting and replys confirmation.
8. label node according to claim 5 is characterized in that, also comprises:
Number of nodes is provided with module, is used to be provided with the quantity of measured node.
9. a data screening system is characterized in that, comprises label node and at least one beaconing nodes;
Described label node is used to receive the affirmation information that at least one beaconing nodes sends, and comprises the node number and the RSSI value of described beaconing nodes in described confirmation, according to the RSSI value, selects at least one beaconing nodes as measured node.
10. data screening according to claim 9 system is characterized in that,
Described label node also is used to initiate beaconing nodes search broadcasting, and indication receives the beaconing nodes of this broadcasting and replys confirmation;
Described beaconing nodes is used for sending confirmation, the node number and the RSSI value of carrying this beaconing nodes in described confirmation to the label node of initiating this broadcasting after receiving described beaconing nodes search broadcasting.
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| CN2009102420656A CN102088717A (en) | 2009-12-03 | 2009-12-03 | Method, device and system for screening data |
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| CN2009102420656A CN102088717A (en) | 2009-12-03 | 2009-12-03 | Method, device and system for screening data |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106303949A (en) * | 2015-06-26 | 2017-01-04 | 希姆通信息技术（上海）有限公司 | Zigbee localization method and location reference point choosing method thereof |
| CN112020017A (en) * | 2019-05-28 | 2020-12-01 | 松下知识产权经营株式会社 | Communication system, communication device, non-transitory recording medium, and communication confirmation method |
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| CN101109804A (en) * | 2007-08-18 | 2008-01-23 | 深圳先进技术研究院 | System for fast three-dimensional locating wireless sensor network and method thereof |
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| CN106303949A (en) * | 2015-06-26 | 2017-01-04 | 希姆通信息技术（上海）有限公司 | Zigbee localization method and location reference point choosing method thereof |
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| CN112020017A (en) * | 2019-05-28 | 2020-12-01 | 松下知识产权经营株式会社 | Communication system, communication device, non-transitory recording medium, and communication confirmation method |
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Application publication date: 20110608 |