CN102387571A - Communication establishing method, system and device for wireless sensor network - Google Patents
Communication establishing method, system and device for wireless sensor network Download PDFInfo
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- CN102387571A CN102387571A CN2010102786631A CN201010278663A CN102387571A CN 102387571 A CN102387571 A CN 102387571A CN 2010102786631 A CN2010102786631 A CN 2010102786631A CN 201010278663 A CN201010278663 A CN 201010278663A CN 102387571 A CN102387571 A CN 102387571A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2209/00—Arrangements in telecontrol or telemetry systems
- H04Q2209/40—Arrangements in telecontrol or telemetry systems using a wireless architecture
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2209/00—Arrangements in telecontrol or telemetry systems
- H04Q2209/80—Arrangements in the sub-station, i.e. sensing device
- H04Q2209/88—Providing power supply at the sub-station
- H04Q2209/883—Providing power supply at the sub-station where the sensing device enters an active or inactive mode
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention discloses a communication establishing method, a communication establishing system and a communication establishing device for a wireless sensor network, which are used for solving the problem of the consumption of a large amount of electricity caused by periodic broadcast of access signals by mobile terminals serving as mobile sink nodes. The method comprises the following steps of: when data to be transmitted is determined by network side equipment, broadcasting wakeup signals for the mobile sink nodes; receiving access signals broadcast by at least one mobile sink node after the wakeup signals are received; selecting identification information which corresponds to a mobile sink node for receiving the data from identification information of the mobile sink nodes included in each received access signal respectively; and transmitting the data to be transmitted to the mobile sink node of which an identification information mark is selected. The mobile sink nodes only broadcast the access signals after receiving the wakeup signals, so that the consumption of a large amount of electricity by the mobile terminals serving as the mobile sink nodes is avoided, the standby time of the mobile terminals is prolonged, and the service life of the mobile terminals is prolonged.
Description
Technical field
The present invention relates to wireless communication field, relate in particular to a kind of wireless sense network and set up method for communicating, system and device.
Background technology
Along with the develop rapidly of microelectric technique, micro-electronic mechanical system technique and wireless communication technology, the low-power consumption Design of Sensor and the application that integrate perception and radio communication function become a reality.As long as, just can collect interested data through near the incident spot, disposing corresponding wireless sensor node.
In wireless sense network; General node types comprises: the sensor node and the aggregation node that are equipped with all kinds transducer; Wherein, sensor node is used for the detection of surrounding environment and perception, and aggregation node is used to receive the data that other sensor nodes send.Aggregation node is equipped with plural network interface, and this network interface is realized communicating with sensor node on the one hand, and realization inserts being connected of upper layer network with Ethernet or wireless network on the other hand.
Aggregation node is divided into fixedly aggregation node and mobile sink node again, and than fixing aggregation node, mobile sink node has can realize advantages such as uniform network load distribution, electric weight repeat to replenish.Particularly when with portable terminal during as mobile sink node, for example mobile phone can also help to utilize the portable terminal of a large amount of existence to effectively reduce the cost that wireless sense network is disposed.In having the wireless sense network of mobile sink node, mobile sink node needs interim foundation with communicating by letter of sensor node, and how setting up communication is a key technical problem.
In the prior art, in wireless sense network, mobile sink node inserts signal according to the periodic broadcasting that is provided with, and after sensor node receives the access signal of this mobile sink node broadcasting, sets up correspondence to accomplish the transmission of data with this mobile sink node.
When adopting this mode to set up the communication of wireless sense network; Because no matter whether mobile sink node exists sensor node on every side; Whether sensor node on every side need send data, and this mobile sink node all will periodically be broadcasted the access signal, has caused as a large amount of consumption of electric of this portable terminal of mobile sink node; Thereby shortened the stand-by time of portable terminal, and shortened the life-span of portable terminal.
Summary of the invention
In view of this; The embodiment of the invention provides a kind of wireless sense network to set up method for communicating, system and device; In order to solve portable terminal as mobile sink node because periodic broadcast inserts signal; Consume a large amount of electric weight, shortened the stand-by time of portable terminal, and shortened the problem in the life-span of portable terminal.
A kind of wireless sense network that the embodiment of the invention provides is set up method for communicating, comprising:
When network equipment confirm to send data to be sent, to mobile sink node broadcasting wake-up signal;
Said network equipment receives at least one mobile sink node and is receiving the access signal of broadcasting behind the said wake-up signal;
Said network equipment is selected in order to receiving the mobile sink node corresponding identification information of data in the identification information that respectively inserts the mobile sink node that signal comprises respectively that receives, and
Said data to be sent are sent to the mobile sink node of the identification information sign of selecting.
A kind of wireless sense network that the embodiment of the invention provides is set up the system of communication, comprising:
Network equipment; When being used for confirm sending data to be sent; To mobile sink node broadcasting wake-up signal, receive at least one mobile sink node and receiving the access signal of broadcasting behind the said wake-up signal, in the identification information that respectively inserts the mobile sink node that signal comprises respectively that receives; Selection is in order to receiving the mobile sink node corresponding identification information of data, and said data to be sent are sent to the mobile sink node of the identification information sign of selecting;
Said mobile sink node is used for broadcasting access signal after receiving said wake-up signal, and receives the data said to be sent that said network equipment sends.
The device that a kind of wireless sense network that the embodiment of the invention provides is set up comprises:
Sending module; When being used for confirm sending data to be sent; To mobile sink node broadcasting wake-up signal; And, said data to be sent are sent to the mobile sink node of the identification information sign of selecting according to the mobile sink node corresponding identification information of selecting module to select in order to the reception data;
Receiver module is used to receive at least one mobile sink node and is receiving the access signal of broadcasting behind the said wake-up signal, wherein, comprises the identification information of this mobile sink node in the access signal of each mobile sink node broadcasting;
Select module, be used for selecting in order to receive the mobile sink node corresponding identification information of data at the identification information that respectively inserts the mobile sink node that signal comprises respectively that receives.
The embodiment of the invention provides a kind of wireless sense network to set up method for communicating, system and device; When this method network equipment confirm to send data to be sent; To mobile sink node broadcasting wake-up signal; Receive at least one mobile sink node and receiving the access signal of broadcasting behind this wake-up signal; And in the identification information that respectively inserts the mobile sink node that signal comprises respectively that receives, select data to be sent to be sent to the mobile sink node of this identification information sign of selecting in order to receive the mobile sink node corresponding identification information of data.Because mobile sink node is only after receiving wake-up signal in embodiments of the present invention; Just broadcasting inserts signal; Therefore avoided as a large amount of consumption of electric of the portable terminal of this mobile sink node, thus the stand-by time that has prolonged portable terminal, and prolonged life-span of portable terminal.
Description of drawings
Fig. 1 sets up the process of communication for the wireless sense network that the embodiment of the invention provides;
Fig. 2 for the embodiment of the invention provide to receive the indication information that sensor node sends be example to wake node up, wireless sense network is set up the process of communication;
Fig. 3 receives wake-up signal for the mobile sink node that the embodiment of the invention provides, and judges whether self inserts the process of the broadcasting of signal;
Fig. 4 selects the process in order to the mobile sink node corresponding identification information that receives data for this sensor node that the embodiment of the invention provides;
Fig. 5 receives the data instance to be sent that sensor node sends for what the embodiment of the invention provided to wake node up, and wireless sense network is set up the process of communication;
When the sensor node in the network equipment that Fig. 6 provides for the embodiment of the invention is confirmed to send data to be sent, set up the process of communicating by letter with portable terminal as mobile sink node;
Fig. 7 sets up the system of communication for a kind of wireless sense network that the embodiment of the invention provides;
Fig. 8 sets up communicating devices for a kind of wireless sense network that the embodiment of the invention provides.
Embodiment
Below in conjunction with Figure of description, the embodiment of the invention is described in detail.
In embodiments of the present invention, wireless sense network comprises: network equipment and mobile sink node.Mobile sink node can be various types of portable terminals, for example, and PDA, mobile phone etc., and in this wireless sense network, comprise at least one mobile sink node.When network equipment confirm to send data to be sent, communicate with mobile sink node, data to be sent are sent to mobile sink node, mobile sink node again with the data upload that receives to upper layer network.
Fig. 1 sets up the process of communication for the wireless sense network that the embodiment of the invention provides, and specifically may further comprise the steps:
S101: when network equipment confirm to send data to be sent, to mobile sink node broadcasting wake-up signal.
In embodiments of the present invention, network equipment comprises: sensor node with wake node up.Wherein, sensor node is used for the detection of surrounding environment and perception, and when confirming to send data to be sent, indication wakes node up and broadcasts wake-up signal to mobile sink node; Waking node up is used for to this wake-up signal of mobile sink node broadcasting.
When network equipment confirm to send data to be sent, when promptly the sensor node in the network equipment confirms to send data to be sent, send indication information to waking node up, indicate this to wake node up and broadcast wake-up signal to mobile sink node; Or sensor node sends these data to be sent to waking node up when confirm sending data to be sent, indicates this to wake node up and broadcasts wake-up signal to mobile sink node.
Wherein, waking the node that node can be a wireless sense network itself up, like sensor node, also can be the node that defines separately.For complexity and the redundancy that reduces wireless sense network, in embodiments of the present invention, this wakes node up can be for having increased the sensor node with broadcasting wake-up signal function.
S102: this network equipment receives the access signal that at least one mobile sink node is broadcasted after receiving wake-up signal.
In embodiments of the present invention, mobile sink node after receiving the wake-up signal that wakes node broadcasts up, the access signal of going on the air.The identification information that comprises this mobile sink node in the access signal of each mobile sink node broadcasting.
S103: this network equipment is in the identification information that respectively inserts the mobile sink node that signal comprises respectively that receives; Selection sends to these data to be sent the mobile sink node of this identification information sign of selecting in order to receive the mobile sink node corresponding identification information of data.
Because this network equipment is through communicating with mobile sink node; Should data to be sent send to mobile sink node; This data upload that mobile sink node will receive again is to upper layer network, therefore, and when this network equipment receives the access signal of two or more mobile sink nodes broadcasting; Only need to select one in these two or more mobile sink nodes to communicate, just can data to be sent be uploaded to upper layer network through this mobile sink node.
Wherein, the mode that this network equipment send through a jump set or multi-hop transmits sends to mobile sink node with data to be sent.The mode that this jump set is sent is that when the distance of this network equipment and this mobile sink node was closer, this network equipment directly should data to be sent send to this mobile sink node.The mode that this multi-hop transmits does; When the distance of this network equipment and this mobile sink node is distant; This network equipment sends to other network equipments closer apart from this mobile sink node with these data to be sent; Network equipment through closer apart from this mobile sink node sends to this mobile sink node with data to be sent.For example, sensor node a, b and the c in the network equipment and the distance L of mobile sink node
a, L
bAnd L
cRelation be L
a＞L
b＞L
cWhen sensor node a sends to this mobile sink node with data to be sent; The mode that adopts this multi-hop to transmit is specially, and sensor node a should data to be sent send to sensor node b earlier; Sensor node b should data to be sent send to sensor node c again, and last sensor node c sends to the mobile sink node that this carries out the data transmission with these data to be sent.
In said process; When network equipment confirm to send data to be sent; To mobile sink node broadcasting wake-up signal; Mobile sink node only after receiving this wake-up signal, just inserts the broadcasting of signal, has avoided as a large amount of consumption of electric of the portable terminal of this mobile sink node.
In embodiments of the present invention; When the node that wakes up in the network equipment is when having increased the sensor node with broadcasting wake-up signal function; The method of in this wireless sense network, selecting to can be used as this sensor node that wakes node up does; Preestablish some sensor nodes as waking node up, perhaps that electric weight is strong, receive signal strength signal intensity preferably sensor node as waking node up.In embodiments of the present invention, the networking mode that wakes node and sensor node up can be bunch to be unit, wherein, and can be with bunch head of each bunch as waking node up.
To each bunch, when the sensor node in this bunch was confirmed to send data to be sent, indication was as bunch head broadcasting wake-up signal of this bunch that wakes node up.Wherein, when this wakes node up and receives the indication information that this sensor node sends, wake the node broadcasts wake-up signal up, broadcasting inserted signal after mobile sink node received this wake-up signal, communicated with this sensor node.
Fig. 2 for the embodiment of the invention provide to receive the indication information that sensor node sends be example to wake node up, wireless sense network is set up the process of communication, specifically may further comprise the steps:
S201: when sensor node confirm to send data to be sent, send indication information to waking node up.
S202: after waking node up and receiving this indication information, the wake-up signal of going on the air.
Wherein, this wakes node up according to the time interval of setting, and periodically broadcasts this wake-up signal.
S203: this sensor node receives at least one mobile sink node and is receiving the access signal of broadcasting behind this wake-up signal.
S204: this sensor node is according to the identification information that inserts the mobile sink node that comprises in the signal, and the identification information of the mobile sink node of data transmission is carried out in selection, data to be sent is sent to the mobile sink node of this identification information.
In said process; When waking node up and receive the indication information that this sensor node sends; Broadcasting inserted signal after the wake-up signal of going on the air, mobile sink node received this wake-up signal, and this sensor node is according to the identification information of the mobile sink node that comprises in the access signal that receives; The identification information of the mobile sink node of data transmission is carried out in selection, data to be sent is sent to the mobile sink node of this identification information.
In embodiments of the present invention, be not to open sensing Netcom telecommunication function as the portable terminal of mobile sink node always, but, periodically open this sensing Netcom telecommunication function, promptly self is waken up according to the time interval of setting according to the time interval of setting.Have only this portable terminal in the time span that self wakes up, when promptly opening this sensing Netcom telecommunication function, this portable terminal could be resolved the wake-up signal that receives, thereby inserts the broadcasting of signal.When this portable terminal not in the time span that self wakes up; When promptly closing this sensing Netcom telecommunication function; Even wake the broadcasting that node carries out wake-up signal up; This mobile sink node can not be resolved the wake-up signal that receives, and can only abandon this wake-up signal, can not insert the broadcasting of signal.
And; In order to reduce the quantity of the mobile sink node of the signal of broadcasting access simultaneously in the same area; With the serious disturbance that reduces to exist between the mobile sink node; Mobile sink node in the embodiment of the invention is in the time span that self wakes up; Promptly when opening sensing Netcom telecommunication function, receive this wake-up signal, also will judge whether self inserts the broadcasting of signal according in the state information of self current charge value, self current reception signal strength values and other self one or more.
With the dump energy and self signal strength signal intensity of this mobile sink node, judge the example that broadcasts as that self whether inserts signal below, this process is elaborated according to self.
Fig. 3 receives wake-up signal for the mobile sink node that the embodiment of the invention provides, and judges that whether self inserts the process of the broadcasting of signal, specifically may further comprise the steps:
S301: mobile sink node receives the wake-up signal wake node broadcasts up, judges whether this wake-up signal is resolved, and when confirming this wake-up signal resolved, carries out step S302, otherwise carries out step S305.
In embodiments of the present invention, mobile sink node woke self up according to the time interval of setting, when this mobile sink node in the time span that self wakes up; Receive wake-up signal when promptly opening sensing Netcom telecommunication function; Then the wake-up signal that receives is resolved, when this mobile sink node not in the time span that self wakes up, receive wake-up signal when promptly closing sensing Netcom telecommunication function; Then can not resolve, abandon this wake-up signal the wake-up signal that receives.
In embodiments of the present invention; When as the translational speed of the portable terminal of this mobile sink node when very fast, if received the wake-up signal that wakes node broadcasts in the present region of this portable terminal up, but not in the time span that self wakes up; When promptly closing sensing Netcom telecommunication function; Then can abandon this wake-up signal, wait until the time interval of setting, when opening sensing Netcom telecommunication function; This portable terminal not in this zone, will miss like this with this zone in the chance that communicates of sensor node.Therefore, in embodiments of the present invention, the time interval that this wakes self up as the portable terminal of mobile sink node; Promptly open the time interval of this sensing Netcom telecommunication function; Can regulate according to the translational speed of self, the translational speed of self is fast more, and is then should the time interval short more.
S302: this mobile sink node is confirmed the charge value that self is current, and the charge value of confirming and the power threshold of preservation are compared, and when this charge value during greater than this power threshold of preservation, carries out step S303, otherwise carries out step S306.
Wherein, This mobile sink node self is preserved power threshold, when the current charge value of this mobile sink node during greater than this power threshold, then proceeds the judgement of the reception signal strength signal intensity of this mobile sink node; Otherwise confirm self current charge value deficiency, do not broadcast the access signal.
S303: this mobile sink node is confirmed the reception signal strength values that self is current; The reception signal strength values of confirming and the signal strength threshold of preservation are compared; When this receives signal strength values greater than this signal strength threshold of preserving, carry out step S304, otherwise carry out step S306.
Wherein, This mobile sink node self is preserved signal strength threshold, and when the current reception signal strength values of this mobile sink node during greater than this signal strength threshold, broadcasting inserts signal; Otherwise confirm that self current reception signal strength values is strong inadequately, does not broadcast the access signal.
And this mobile sink node is judged self current charge value whether greater than the process of the power threshold of preserving, and whether current reception signal strength values can be for arbitrarily greater than the order of the process of the signal strength threshold of preservation with judging self.
S304: this mobile sink node broadcasting inserts signal.
This mobile sink node affirmation self is current to have enough charge values, and the reception signal strength values of self is stronger, the access signal of going on the air.
S305: this mobile sink node abandons this wake-up signal.
This mobile sink node when promptly being in the state of closing sensing Netcom telecommunication function, can not be resolved this wake-up signal not in the time span that self wakes up, therefore abandons this wake-up signal.
S306: this mobile sink node is not broadcasted the access signal.
This mobile sink node confirms that self current charge value is not enough, or self current reception signal strength values is strong inadequately, does not then broadcast the access signal.
When mobile sink node in the time span that self wakes up; When promptly being in the state of opening sensing Netcom telecommunication function and receiving wake-up signal; If directly insert the broadcasting of signal; Some current electric quantity values are not enough so, even or receive the not strong mobile sink node of signal strength values and communicate with this sensor node, quality that then should communication also can be very low; Even can not receive the data to be sent that this sensor node sends, and the access signal of this mobile sink node broadcasting also can interfere with the broadcasting that other mobile sink nodes insert signal.Therefore, mobile sink node is confirming that self currently has enough charge values, and signal strength values just begins to insert the broadcasting of signal when also strong.
In said process; This mobile sink node promptly when unlatching sensing Netcom telecommunication function receives this wake-up signal, judges whether self inserts the broadcasting of signal in the time span that self wakes up; Only confirming that self current charge value is greater than the power threshold of self preserving; Promptly confirm current enough charge values that self has, and the reception signal strength values of self signal strength threshold of preserving, when confirming that promptly current self reception signal strength values is strong greater than self; Just insert the broadcasting of signal, avoided as a large amount of consumption of electric of the portable terminal of this mobile sink node.Simultaneously; Because the portable terminal as this mobile sink node is only being confirmed current enough charge values that self has; And just broadcast the access signal when reception signal strength values of self is strong; Reduce the quantity of the mobile sink node of the signal of broadcasting access simultaneously in the same area, thereby effectively reduced the serious interference between the portable terminal.
For example; In the same area, there are 10 portable terminals in the time span that self wakes up, to receive wake-up signal; But wherein have only 5 portable terminals that enough charge values are arranged, and it is stronger to receive signal strength values, then has only these 5 portable terminals to insert the broadcasting of signal; 10 portable terminals insert the broadcasting of signal simultaneously in the prior art, have effectively reduced the serious interference between the portable terminal.
The embodiment of the invention provide when waking node up and receive the indication information that sensor node sends; Sensor node is set up in the process of communicating by letter with mobile sink node; If this sensor node receives only the access signal of a mobile sink node broadcasting; Then according to the identification information of this mobile sink node that comprises in this access signal; Select the identification information of the identification information of this mobile sink node, and data to be sent are sent to the mobile sink node of this identification information as the mobile sink node that carries out the data transmission.If receive the access signal of two or more mobile sink node broadcasting; Owing to only need to select a mobile sink node to communicate; Just can data to be sent be uploaded to upper layer network through this mobile sink node; Therefore can be with this sensor node according to the identification information of the mobile sink node that comprises in the access signal that receives; Select arbitrarily the identification information of a mobile sink node,, and data to be sent are sent to the mobile sink node of this identification information as the identification information that carries out the mobile sink node that data send.
In order to improve the communication quality of this sensor node and mobile sink node; Improve the transmitting efficiency of these data to be sent; In embodiments of the present invention; When this sensor node receives the access signal of two or more mobile sink nodes broadcasting, the intensity of the access signal of the mobile sink node of each identification information of confirming to receive, selection intensity is the strongest one insert signal corresponding identification information as in order to receive the mobile sink node corresponding identification information of data; Promptly select the strongest one of signal strength signal intensity in these two or more mobile sink nodes to communicate, should data to be sent send to this mobile sink node.
Fig. 4 selects the process in order to the mobile sink node corresponding identification information that receives data for this sensor node that the embodiment of the invention provides, and specifically may further comprise the steps:
S401: the intensity of the access signal of the mobile sink node of each identification information that this sensor node is confirmed to receive.
S402: one that this sensor node selection intensity is the strongest is inserted signal corresponding identification information as the mobile sink node corresponding identification information in order to the reception data.
The intensity of each access signal that this sensor node will receive compares, and confirms the access signal that intensity is the strongest, and selects this access signal corresponding identification information as the mobile sink node corresponding identification information in order to the reception data.
In said process; The intensity of the access signal of the mobile sink node of each identification information that this sensor node is confirmed to receive; Select a strongest mobile sink node corresponding identification information that inserts the conduct of signal corresponding identification information in order to the reception data of this intensity; Promptly select the strongest one of signal strength signal intensity in the mobile sink node to communicate, data to be sent are sent to this mobile sink node, improved the communication quality of sensor node and mobile sink node.
In embodiments of the present invention; Because when network equipment is confirmed to send data to be sent; To the mode of mobile sink node broadcasting wake-up signal can also for; When the sensor node in this network equipment confirm to send data to be sent, data to be sent are sent to this wake node up, indicate this to wake the node broadcasts wake-up signal up.Adopt this mode to indicate when waking the node broadcasts wake-up signal up; Because should data to be sent having sent to, this sensor node wakes node up; Then through the mode that mobile sink node is uploaded to upper layer network do with these data to be sent; This wakes node up and mobile sink node communicates, and should data to be sent send to mobile sink node, mobile sink node again should data upload to be sent to upper layer network.
Fig. 5 receives the data instance to be sent that sensor node sends for what the embodiment of the invention provided to wake node up, and wireless sense network is set up the process of communication, specifically may further comprise the steps:
S501: when sensor node confirm to send data to be sent, send these data to be sent to waking node up.
S502: after waking node up and receiving these data to be sent, the wake-up signal of going on the air.
Wherein, this wakes the node joint up according to the time interval of setting, and periodically broadcasts this wake-up signal.
S503: this wakes at least one mobile sink node of node reception up and is receiving the access signal of broadcasting behind this wake-up signal.
S504: this wakes node up according to the identification information that inserts the mobile sink node that comprises in the signal, and the identification information of the mobile sink node of data transmission is carried out in selection, these data to be sent is sent to the mobile sink node of this identification information.
In embodiments of the present invention; Because this wakes node up is to have increased the sensor node with broadcasting wake-up signal function; And be specially bunch head in the cluster sensor node; Therefore this wakes the function that node also can use sensor node up, communicates with this mobile sink node, is about to data to be sent and sends to mobile sink node.
In said process; Portable terminal as mobile sink node also wakes self up according to the time interval of setting; And in order to reduce the quantity of the mobile sink node of the signal of broadcasting access simultaneously in the same area, with the serious interference that reduces to exist between the mobile sink node, the mobile sink node in the embodiment of the invention is in the time span that self wakes up; Promptly when opening sensing Netcom telecommunication function, receive wake-up signal; According in the state information of self current charge value, self current reception signal strength values and other self one or more, judge whether self inserts the process of the broadcasting of signal, the mobile sink node that provides with the embodiment of the invention receives wake-up signal; And the process of judging the broadcasting that self whether inserts signal is basic identical, does not just give unnecessary details one by one here.
And; In said process,, improve the transmitting efficiency of these data to be sent in order to improve the communication quality that this wakes node and mobile sink node up; In embodiments of the present invention; This wakes node up and selects the process in order to the mobile sink node corresponding identification information that receives data, and is basic identical in order to the process of the mobile sink node corresponding identification information of reception data with this sensor node selection that the embodiment of the invention provides, and does not just give unnecessary details one by one here.
With a concrete execution mode, above-mentioned implementation is elaborated below.
When the sensor node in the network equipment that Fig. 6 provides for the embodiment of the invention is confirmed to send data to be sent, set up the process of communicating by letter, specifically may further comprise the steps with portable terminal as mobile sink node:
S601: when sensor node confirm to send data to be sent, send indication information to waking node up.
S602: after this wakes node up and receives this indication information, the wake-up signal of going on the air.
Wherein, this wakes node up according to the time interval of setting, and periodically broadcasts this wake-up signal.
S603: mobile sink node receives the wake-up signal wake node broadcasts up, judges whether this wake-up signal is resolved, and when confirming this wake-up signal resolved, carries out step S604, otherwise carries out step S605.
Mobile sink node woke self up according to the time interval of setting; When this mobile sink node in the time span that self wakes up, receive this wake-up signal when promptly opening sensing Netcom telecommunication function, then the wake-up signal that receives is resolved; When this mobile sink node not in the time span that self wakes up; Receive this wake-up signal when promptly closing sensing Netcom telecommunication function, then can not resolve, abandon this wake-up signal the wake-up signal that receives.
S604: this mobile sink node is confirmed charge value and self the current reception signal strength values that self is current; The charge value of confirming and the power threshold of preservation are compared; And the reception signal strength values that will confirm and the signal strength threshold of preservation compare, when this charge value greater than this power threshold of preserving, and should receive signal strength values greater than the signal strength threshold of preserving the time; Carry out step S606, otherwise carry out step S607.
When this portable terminal as mobile sink node receives this wake-up signal in the time span that self wakes up,, judge whether self inserts the broadcasting of signal according to self current charge value and self current reception signal strength values.Be specially; If the current charge value of this mobile sink node is greater than the power threshold of self preserving; And the current reception signal strength values of this mobile sink node is greater than the signal strength threshold of self preserving, and confirms that self broadcasting inserts signal, otherwise confirms self not broadcast the access signal.
S605: this mobile sink node abandons this wake-up signal.
This mobile sink node when promptly closing this sensing Netcom telecommunication function, can not be resolved this wake-up signal not in the time span that self wakes up, therefore abandons this wake-up signal.
S606: this mobile sink node broadcasting inserts signal.
This mobile sink node affirmation self is current to have enough charge values, and the reception signal strength values of self is stronger, the access signal of going on the air.
S607: this mobile sink node is not broadcasted the access signal.
This mobile sink node confirms that self current charge value is not enough, or self current reception signal strength values is strong inadequately, does not then broadcast the access signal.
S608: this sensor node receives the access signal of mobile sink node broadcasting.
Wherein, the identification information that comprises this mobile sink node in the access signal of each mobile sink node broadcasting.
S609: the intensity of the access signal of the mobile sink node of each identification information that this sensor node is confirmed to receive.
S610: one that this sensor node selection intensity is the strongest is inserted signal corresponding identification information as in order to receive the mobile sink node corresponding identification information of data, these data to be sent is sent to the mobile sink node of this identification information sign.
Wherein, the mode that this sensor node send through a jump set or multi-hop transmits should data to be sent send to mobile sink node.
In said process; When sensor node confirm to send data to be sent, indication woke the node broadcasts wake-up signal up, when mobile sink node only receives this wake-up signal in the time span that self wakes up; Could resolve this wake-up signal; Thereby judge whether self inserts the broadcasting of signal, and broadcasting inserts signal when affirmation self inserts the broadcasting of signal, has avoided as a large amount of consumption of electric of the portable terminal of this mobile sink node.Simultaneously; Because mobile sink node is only when confirming self to insert the broadcasting of signal; Just broadcasting inserts signal, and broadcasting simultaneously inserts the quantity of the mobile sink node of signal in the same area thereby reduced, so has effectively reduced the serious disturbance that exists between the mobile sink node.
And, in said process, when sensor node confirm to send data to be sent, also can these data to be sent be sent to and wake node up, wake the node broadcasts wake-up signal up to indicate this.When adopting this method; Wake node up and set up the process of communicating by letter with portable terminal as mobile sink node; With the embodiment of the invention provide when sensor node confirm to send data to be sent; Basic identical with the process of communicating by letter as the portable terminal foundation of mobile sink node, just do not give unnecessary details one by one here.
Fig. 7 sets up the system of communication for a kind of wireless sense network that the embodiment of the invention provides, and specifically comprises:
Said mobile sink node 702 is used for broadcasting access signal after receiving said wake-up signal, and receives the data said to be sent that said network equipment 701 sends.
Said network equipment 701 comprises: sensor node 7011 with wake node 7012 up.
Said sensor node 7011 specifically is used for; When confirm sending data to be sent; Send indication informations to the said node 7012 of waking up, indicate the said node 7012 that wakes up to mobile sink node 702 broadcasting wake-up signals, or when confirming transmission data to be sent; Send said data to be sent to the said node 7012 that wakes up, indicate the said node 7012 that wakes up to mobile sink node 702 broadcasting wake-up signals;
The said node 7012 that wakes up specifically is used for, and receives the indication information that said sensor node 7011 sends, or after the said data to be sent, to mobile sink node 702 broadcasting wake-up signals.
Said mobile sink node 702 specifically is used for, and self is waken up according to the time interval of setting, and when receiving the wake-up signal of said network equipment 701 broadcasting in the time span of waking up at self, broadcasts said access signal.
Said mobile sink node 702 specifically is used for, and confirms the charge value that self is current, the charge value of confirming and the power threshold of preservation are compared, and when said charge value during greater than the power threshold of said preservation, broadcasting access signal.
Said mobile sink node 702 specifically is used for; Confirm the reception signal strength values that self is current; This receptions signal strength values confirmed and the signal strength threshold of preservation are compared,, broadcast the access signal when said reception signal strength values during greater than the signal strength threshold of said preservation.
Said network equipment 701 specifically is used for; Select the identification information of a mobile sink node 702 arbitrarily; As mobile sink node 702 corresponding identification information in order to the reception data; Or the intensity of the access signal of the mobile sink node 702 of each identification information of confirming to receive, selection intensity is the strongest one insert signal corresponding identification information as in order to receive the mobile sink node 702 corresponding identification information of data.
Fig. 8 sets up communicating devices for a kind of wireless sense network that the embodiment of the invention provides, and specifically comprises:
Sending module 801; When being used for confirm sending data to be sent; To mobile sink node broadcasting wake-up signal; And, said data to be sent are sent to the mobile sink node of the identification information sign of selecting according to the mobile sink node corresponding identification information of selecting module 803 to select in order to the reception data;
Said sending module 801 comprises:
First transmitting element 8011 when being used for confirm sending data to be sent, sends indication informations to second transmitting element 8012, indicates said second transmitting element 8012 to mobile sink node broadcasting wake-up signal; Or when confirm sending data to be sent, send said data to be sent to second transmitting element 8012, indicate said second transmitting element 8012 to mobile sink node broadcasting wake-up signal;
Said second transmitting element 8012 is used for receiving the said indication information that said first transmitting element 8011 sends, or after the said data to be sent, to mobile sink node broadcasting wake-up signal.
The embodiment of the invention provides a kind of wireless sense network to set up method for communicating, system and device; When this method network equipment confirm to send data to be sent; To mobile sink node broadcasting wake-up signal; Receive at least one mobile sink node and receiving the access signal of broadcasting behind this wake-up signal; And in the identification information that respectively inserts the mobile sink node that signal comprises respectively that receives, select data to be sent to be sent to the mobile sink node of this identification information sign of selecting in order to receive the mobile sink node corresponding identification information of data.Because mobile sink node is only after receiving wake-up signal; Just broadcasting inserts signal; Therefore avoided as a large amount of consumption of electric of the portable terminal of this mobile sink node, thus the stand-by time that has prolonged portable terminal, and prolonged life-span of portable terminal.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, belong within the scope of claim of the present invention and equivalent technologies thereof if of the present invention these are revised with modification, then the present invention also is intended to comprise these changes and modification interior.
Claims (17)
1. a wireless sense network is set up method for communicating, it is characterized in that, comprising:
When network equipment confirm to send data to be sent, to mobile sink node broadcasting wake-up signal;
Said network equipment receives at least one mobile sink node and is receiving the access signal of broadcasting behind the said wake-up signal;
Said network equipment is selected in order to receiving the mobile sink node corresponding identification information of data in the identification information that respectively inserts the mobile sink node that signal comprises respectively that receives, and
Said data to be sent are sent to the mobile sink node of the identification information sign of selecting.
2. the method for claim 1 is characterized in that, said network equipment comprises:
Sensor node with wake node up.
3. method as claimed in claim 2 is characterized in that, when said network equipment confirm to send data to be sent, comprises to mobile sink node broadcasting wake-up signal:
When said sensor node confirm to send data to be sent, send indication information to the said node that wakes up, said wake node up and receive said indication information after, to mobile sink node broadcasting wake-up signal; Or,
When said sensor node confirm to send data to be sent, send said data to be sent to the said node that wakes up, said wake node up and receive said data to be sent after, to mobile sink node broadcasting wake-up signal.
4. the method for claim 1 is characterized in that, said mobile sink node is broadcasted the access signal and comprised after receiving said wake-up signal:
Said mobile sink node woke self up according to the time interval of setting;
When receiving the wake-up signal of said network equipment broadcasting in the time span of waking up at self, broadcasting inserts signal.
5. method as claimed in claim 4 is characterized in that, said mobile sink node broadcasting inserts signal and comprises:
Said mobile sink node is confirmed the charge value that self is current, and the charge value of confirming and the power threshold of preservation are compared;
When said charge value during greater than the power threshold of said preservation, said mobile sink node broadcasting inserts signal.
6. like claim 4 or 5 described methods, it is characterized in that said mobile sink node broadcasting inserts signal and comprises:
Said mobile sink node is confirmed the reception signal strength values that self is current, and this reception signal strength values confirmed and the signal strength threshold of preservation are compared;
When said reception signal strength values during greater than the signal strength threshold of said preservation, said mobile sink node broadcasting inserts signal.
7. the method for claim 1 is characterized in that, said selection comprises in order to the mobile sink node corresponding identification information that receives data:
Said network equipment is selected the identification information of a mobile sink node arbitrarily, as the mobile sink node corresponding identification information in order to the reception data; Or,
The intensity of the access signal of the mobile sink node of each identification information that said network equipment is confirmed to receive, selection intensity is the strongest one insert signal corresponding identification information as in order to receive the mobile sink node corresponding identification information of data.
8. a wireless sense network is set up the system of communication, it is characterized in that, comprising:
Network equipment; When being used for confirm sending data to be sent; To mobile sink node broadcasting wake-up signal, receive at least one mobile sink node and receiving the access signal of broadcasting behind the said wake-up signal, in the identification information that respectively inserts the mobile sink node that signal comprises respectively that receives; Selection is in order to receiving the mobile sink node corresponding identification information of data, and said data to be sent are sent to the mobile sink node of the identification information sign of selecting;
Said mobile sink node is used for broadcasting access signal after receiving said wake-up signal, and receives the data said to be sent that said network equipment sends.
9. system as claimed in claim 8 is characterized in that, said network equipment comprises: sensor node with wake node up.
10. system as claimed in claim 9 is characterized in that said sensor node specifically is used for; When confirm sending data to be sent; Send indication information to the said node that wakes up, indicate the said node that wakes up to broadcast wake-up signal to mobile sink node, or when confirming transmission data to be sent; Send said data to be sent to the said node that wakes up, indicate the said node that wakes up to broadcast wake-up signal to mobile sink node;
The said node that wakes up specifically is used for, and receives the indication information that said sensor node sends, or after the said data to be sent, to mobile sink node broadcasting wake-up signal.
11. system as claimed in claim 8; It is characterized in that said mobile sink node specifically is used for, self is waken up according to the time interval of setting; When receiving the wake-up signal of said network equipment broadcasting in the time span of waking up at self, broadcast said access signal.
12. system as claimed in claim 11 is characterized in that, said mobile sink node specifically is used for; Confirm the charge value that self is current; The charge value of confirming and the power threshold of preservation are compared, when said charge value during greater than the power threshold of said preservation, broadcasting access signal.
13. like claim 11 or 12 described systems; It is characterized in that; Said mobile sink node specifically is used for, and confirms the reception signal strength values that self is current, and this reception signal strength values confirmed and the signal strength threshold of preservation are compared; When said reception signal strength values during greater than the signal strength threshold of said preservation, broadcasting inserts signal.
14. system as claimed in claim 8; It is characterized in that; Said network equipment specifically is used for, and selects the identification information of a mobile sink node arbitrarily, as the mobile sink node corresponding identification information in order to the reception data; Or the intensity of the access signal of the mobile sink node of each identification information of confirming to receive, selection intensity is the strongest one insert signal corresponding identification information as in order to receive the mobile sink node corresponding identification information of data.
15. a wireless sense network is set up communicating devices, it is characterized in that, comprising:
Sending module; When being used for confirm sending data to be sent; To mobile sink node broadcasting wake-up signal; And, said data to be sent are sent to the mobile sink node of the identification information sign of selecting according to the mobile sink node corresponding identification information of selecting module to select in order to the reception data;
Receiver module is used to receive at least one mobile sink node and is receiving the access signal of broadcasting behind the said wake-up signal;
Select module, be used for selecting in order to receive the mobile sink node corresponding identification information of data at the identification information that respectively inserts the mobile sink node that signal comprises respectively that receives.
16. device as claimed in claim 15 is characterized in that, said sending module comprises:
First transmitting element when being used for confirm sending data to be sent, sends indication information to second transmitting element, indicates said second transmitting element to broadcast wake-up signal to mobile sink node; Or when confirm sending data to be sent, send said data to be sent to second transmitting element, indicate said second transmitting element to broadcast wake-up signal to mobile sink node;
Said second transmitting element is used for receiving the indication information that said first transmitting element sends, or after the said data to be sent, to mobile sink node broadcasting wake-up signal.
17. device as claimed in claim 15; It is characterized in that; Said selection module specifically is used for, and selects the identification information of a mobile sink node arbitrarily, as the mobile sink node corresponding identification information in order to the reception data; Or the intensity of the access signal of the mobile sink node of each identification information of confirming to receive, selection intensity is the strongest one insert signal corresponding identification information as in order to receive the mobile sink node corresponding identification information of data.
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| CN2010102786631A CN102387571A (en) | 2010-09-06 | 2010-09-06 | Communication establishing method, system and device for wireless sensor network |
| PCT/CN2011/079320 WO2012031542A1 (en) | 2010-09-06 | 2011-09-05 | Method, system, and apparatus for establishing communication for wireless sensor network |
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| CN2010102786631A CN102387571A (en) | 2010-09-06 | 2010-09-06 | Communication establishing method, system and device for wireless sensor network |
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