CN102457913A - Method, device and system for transmitting data based on wireless sensor network - Google Patents
Method, device and system for transmitting data based on wireless sensor network Download PDFInfo
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- CN102457913A CN102457913A CN2011104482705A CN201110448270A CN102457913A CN 102457913 A CN102457913 A CN 102457913A CN 2011104482705 A CN2011104482705 A CN 2011104482705A CN 201110448270 A CN201110448270 A CN 201110448270A CN 102457913 A CN102457913 A CN 102457913A
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Abstract
The invention discloses a method, a device and a system for transmitting data based on a wireless sensor network. The method comprises the following steps of: inquiring and obtaining information of an enabling sensor node in the wireless sensor network; allocating a bandwidth to the enabling sensor node according to a valid transmission bandwidth of the wireless sensor network and the obtained information of the enabling sensor node; and sending a bandwidth allocating command to the sensor node, taking the allocated bandwidth and transmitting the data by the sensor node according to the allocated bandwidth. The method provided by the invention can be used for reducing the power consumption of a wireless sensor network system and increasing the reliability of the transmission of the wireless sensor network.
Description
Technical field
The present invention relates to wireless sensor network (WSN, Wireless Sensor Network) technology, particularly a kind of method, Apparatus and system based on wireless sensor network transmission data.
Background technology
Wireless sensor network is the wireless network that constitutes with the mode of a large amount of static or mobile sensor nodes through self-organizing and multi-hop; Its objective is the Monitoring Data information of perceptive object monitored in cooperation perception, collection, processing and the transmission radio sensor network monitoring zone; And report to the user, mainly comprise sensor node and radio network gateway, sensor node perception, the data of gathering perceptive object; And the data of gathering are handled; Send to user or Surveillance center through radio network gateway, so that user or Surveillance center add up, analyze according to the data that receive, thereby the running state information of knowing perceptive object is with the monitoring perceptive object.
In order to obtain the precise information in the monitored area, in the monitored area, be deployed with a large amount of sensor nodes usually, it is thousands of that its quantity possibly reach, even more.For example, for the monitored area that virgin forest carries out forest fire protection and environmental monitoring, sensor node need be distributed in the very big geographic area, thereby, need to dispose a large amount of sensor nodes; Further, for effectively monitoring forest fire protection, also need be in the limited space of area, the sensor node that intensive deployment is a large amount of, promptly intensive deployment sensor node.
Existing wireless sensor network system, sensor node are after image data, according to the bandwidth ability of self; Through wireless sensor network the data of gathering are sent to radio network gateway, because radio network gateway can receive the data of a plurality of sensor nodes usually, each sensor node sends the data of gathering according to the bandwidth ability of self; And the total bandwidth of wireless sensor network is limited; If the same time has a plurality of sensor nodes to send the data of gathering, the total bandwidth of wireless sensor network is easy to taken, when bandwidth is taken; The obstruction that will cause other sensor node data transmission; Freely maybe can't not communicate by letter with communicating by letter between the radio network gateway, the wireless sensor network system power consumption is increased, the wireless sensor network transmission reliability is lower; Further, the wireless sensor network of obstruction also causes packet loss to rise easily, and the data that need to retransmit increase, thereby increase the weight of the load of wireless sensor network more, make it to form endless loop, has also reduced the reliability of wireless sensor network transmission.
Summary of the invention
In view of this, main purpose of the present invention is to propose a kind of method based on wireless sensor network transmission data, reduces the wireless sensor network system power consumption, improves the reliability of wireless sensor network transmission.
Another object of the present invention is to propose a kind of, reduce the wireless sensor network system power consumption, improve the reliability of wireless sensor network transmission based on the wireless sensor network apparatus for transmitting data.
A purpose more of the present invention is to propose a kind of system based on wireless sensor network transmission data, reduces the wireless sensor network system power consumption, improves the reliability of wireless sensor network transmission.
For achieving the above object, the invention provides a kind of method based on wireless sensor network transmission data, this method comprises:
The sensor node information that enables in the wireless sensor network is obtained in inquiry;
According to effective transmission bandwidth of wireless sensor network and the sensor node information that enables obtained, be that the sensor node that enables distributes bandwidth;
Send the allocated bandwidth order to sensor node, carry the bandwidth of distribution, so that sensor node is according to the bandwidth for transmission data of distributing.
Further comprise:
Sensor node becomes characteristic value data with the time-domain signal data reduction that collects, as data waiting for transmission according to the algorithm that is provided with in advance.
Further comprise:
Sensor node to inner memory, offers user's download to carry out data analysis with the time-domain signal storage that collects after gathering completion.
Said characteristic value comprises: instantaneous value, effective value, maximum, minimum value, mean value, mean difference, standard deviation, variance and tiltedly poor etc. a kind of or its combination in any.
The said sensor node information that enables is the port number information that sensor node enables, and is said according to effective transmission bandwidth of wireless sensor network and the sensor node information that enables obtained, and comprises for the sensor node that enables distributes bandwidth:
The port number sum that enables that the sensor node that respectively enables in the radio network gateway statistics wireless sensor network comprises according to effective transmission bandwidth of wireless sensor network and the port number sum that enables, is the passage mean allocation bandwidth that enables.
The said sensor node information that enables is port number information and the sensor node data amount information waiting for transmission that sensor node enables; Said according to effective transmission bandwidth of wireless sensor network and the sensor node information that enables obtained, for distributing bandwidth, the sensor node that enables comprises:
The sensor node data total amount waiting for transmission information that respectively enables in the radio network gateway statistics wireless sensor network; According to effective transmission bandwidth of wireless sensor network and data total amount waiting for transmission; Calculate the data to be transmitted required transmission time of total amount; The port number information that enables according to transmission time, the sensor node data amount information waiting for transmission that calculates and this sensor node, each the passage mean allocation bandwidth that enables for this sensor node.
A kind of based on the wireless sensor network apparatus for transmitting data, this device comprises: sensor node information inquiry module, bandwidth allocation module and allocated bandwidth command transfer module, wherein,
Sensor node information inquiry module, the sensor node information that enables in the wireless sensor network is obtained in inquiry;
Bandwidth allocation module according to effective transmission bandwidth of wireless sensor network and the sensor node information that enables obtained, is that the sensor node that enables distributes bandwidth;
Allocated bandwidth command transfer module is sent the allocated bandwidth order to sensor node, carries the bandwidth of distribution, so that sensor node is according to the bandwidth for transmission data of distributing.
A kind of system based on wireless sensor network transmission data, this system comprises: radio network gateway and sensor node, wherein,
Radio network gateway, the sensor node information that enables in the wireless sensor network is obtained in inquiry; According to effective transmission bandwidth of wireless sensor network and the sensor node information that enables obtained, be that the sensor node that enables distributes bandwidth; Send the allocated bandwidth order to sensor node, carry the bandwidth of distribution;
Sensor node receives the allocated bandwidth order that radio network gateway sends, according to the bandwidth for transmission data of distributing.
Said sensor node comprises: sensor node feedback information module and data transmission module, wherein,
Sensor node feedback information module receives the querying command of radio network gateway, with the sensor node feedback information that enables to radio network gateway;
Data transmission module receives the allocated bandwidth order that radio network gateway sends, according to the bandwidth for transmission data of distributing.
Said sensor node further comprises: the characteristic value data computing module and/or, memory, wherein,
The characteristic value data computing module, the algorithm according to being provided with in advance becomes characteristic value data with the time-domain signal data reduction that collects, and exports data transmission module to as data waiting for transmission;
Memory is used for the time-domain signal data that storage of collected arrives, and after gathering completion, offers user's download to carry out data analysis.
Visible by above-mentioned technical scheme, a kind of method, Apparatus and system provided by the invention based on wireless sensor network transmission data, the sensor node information that enables in the wireless sensor network is obtained in inquiry; According to effective transmission bandwidth of wireless sensor network and the sensor node information that enables obtained, be that the sensor node that enables distributes bandwidth; Send the allocated bandwidth order to sensor node, carry the bandwidth of distribution, so that sensor node is according to the bandwidth for transmission data of distributing.Like this; Can guarantee that each sensor node transfer bandwidth is no more than effective transmission bandwidth of radio network gateway; Guarantee that each sensor node is smooth and easy with communicating by letter of radio network gateway; Avoid the obstruction and the data re-transmission of wireless sensor network, reduced the power consumption of wireless sensor network system, promoted the transmission reliability of wireless sensor network.
Description of drawings
Fig. 1 is the method flow sketch map of the embodiment of the invention based on wireless sensor network transmission data.
Fig. 2 is the method idiographic flow sketch map based on wireless sensor network transmission data of the embodiment of the invention.
Fig. 3 is another idiographic flow sketch map of method based on wireless sensor network transmission data of the embodiment of the invention.
Fig. 4 is that the embodiment of the invention is based on wireless sensor network apparatus for transmitting data structural representation.
Fig. 5 is the system configuration sketch map of the embodiment of the invention based on wireless sensor network transmission data.
Embodiment
For making the object of the invention, technical scheme and advantage clearer, will combine accompanying drawing and specific embodiment that the present invention is done to describe in detail further below.
Existing wireless sensor network system; Radio network gateway is responsible for receiving the data that each sensor node is gathered; But the transmission bandwidth to sensor node is not controlled, and sensor node sends the data of gathering according to the bandwidth ability of self after image data; The obstruction that causes wireless sensor network easily makes that the wireless sensor network transmission reliability is lower.In the embodiment of the invention; Consideration is by the radio network gateway of forming wireless sensor network system; According to the total bandwidth of wireless sensor network system and the sensor node quantity that inserts radio network gateway, through bandwidth allocation algorithm and the communications protocol that is provided with in advance, for wireless senser distributes bandwidth; Make the radio network gateway valid data gathered of receiving sensor node to greatest extent, and can avoid the obstruction of wireless sensor network.Be specially adapted to the wireless sensor network that wireless sensor node is numerous or the wireless sensor node sampling rate is higher.
Fig. 1 is the method flow sketch map of the embodiment of the invention based on wireless sensor network transmission data.Referring to Fig. 1, this flow process comprises:
Step 101, the sensor node information that enables in the wireless sensor network is obtained in inquiry;
In this step; Radio network gateway time cycle of last setting then, the sensor node in wireless sensor network sends querying command, the sensor node information that inquiry respectively enables; Promptly need carry out the sensor node information of transfer of data; After sensor node receives querying command,, the sensor node information that enables is sent to radio network gateway if define the data that need transmission.
The sensor node information that enables comprises: the port number information that sensor node enables, perhaps, port number information that sensor node enables and sensor node data amount information waiting for transmission.
The port number that sensor node enables can be the largest passages number that this sensor node can enable, also can be this sensor node from the largest passages number that can enable, the port number of choosing that is used to transmit data.The port number that the sensor node selection enables can be confirmed according to actual needs, repeats no more at this.
Step 102 according to effective transmission bandwidth of wireless sensor network and the sensor node information that enables obtained, is that the sensor node that enables distributes bandwidth;
In this step, if the port number information that the sensor node information that enables is sensor node to enable then according to effective transmission bandwidth of wireless sensor network and the sensor node information that enables obtained, comprises for the sensor node that enables distributes bandwidth:
The port number sum that enables that the sensor node that respectively enables in the radio network gateway statistics wireless sensor network comprises; It is the port number summation that each sensor node enables; According to effective transmission bandwidth of wireless sensor network and the port number sum that enables, be the passage mean allocation bandwidth that enables.
In the embodiment of the invention, radio network gateway is the passage mean allocation bandwidth that enables in the network, need not to consider each sensor node data volume waiting for transmission.
For the computing formula of the passage mean allocation bandwidth that enables is:
In the formula,
F is the bandwidth of each passage mean allocation that enables;
W is the effective transmission bandwidth of wireless sensor network;
C
iBe i the port number that enables that the sensor node that enables comprises;
N is the sensor node number that enables.
Like this, each sensor node bandwidth C that can use
IFFor:
C
iF＝FxC
i
Port number information that if the sensor node information that enables is sensor node to enable and sensor node data amount information waiting for transmission; Then,, the sensor node that enables comprises for distributing bandwidth according to effective transmission bandwidth of wireless sensor network and the sensor node information that enables obtained:
The sensor node data total amount waiting for transmission information that respectively enables in the radio network gateway statistics wireless sensor network; According to effective transmission bandwidth of wireless sensor network and data total amount waiting for transmission; Calculate the data to be transmitted required transmission time of total amount; The port number information that enables according to transmission time, the sensor node data amount information waiting for transmission that calculates and this sensor node, each the passage mean allocation bandwidth that enables for this sensor node.
In the embodiment of the invention, the formula that calculates the transmission time is:
In the formula,
T is the transmission time;
w
iBe i sensor node data volume waiting for transmission that enables.
The formula of each the passage mean allocation bandwidth that enables for sensor node is:
In the formula,
F
iBandwidth for mean allocation.
Like this, through above-mentioned allocated bandwidth, can ensure each sensor node data waiting for transmission can be in the identical time end of transmission, thereby improve the Internet resources bandwidth utilization.
The effective transmission bandwidth of wireless sensor network can be total transmission bandwidth of wireless sensor network, certainly, and in the practical application; Consider the needs of some sensor node transmission special datas, for example, confirm the data of gathering when sensor node and surpass predetermined data threshold; For instance, when the temperature data that the sensor node in being arranged in forest is gathered is too high, show the generation condition of a fire; Need in time alarm, at this moment, sensor node can be mutual with radio network gateway at any time; With the instantaneous transmission data; Like this, radio network gateway can be reserved a part of bandwidth from the total transmission bandwidth of wireless sensor network, with the wireless sensor network transmission bandwidth after the reserved part bandwidth as the effective transmission bandwidth of wireless sensor network.
As previously mentioned; The time cycle of the last setting that radio network gateway related to then in the time cycle of last setting; For the sensor node information that enables is the situation of the port number information that enables of sensor node, and the time cycle of last setting is meant the time that sensor node spent that last transmission data finish; And be the port number information that enables of sensor node and the situation of sensor node data amount information waiting for transmission for the sensor node information that enables, the time cycle of last setting is meant the transmission time that calculates.
Certainly; In the practical application; The bandwidth information of the distribution of carrying also can be the bandwidth of distributing for sensor node, and the bandwidth information of the distribution that can represent to carry through different signs is the bandwidth of distributing for sensor node or enables the bandwidth of channel allocation in the sensor node each.
Step 103 is sent the allocated bandwidth order to sensor node, carries the bandwidth of distribution, so that sensor node is according to the bandwidth for transmission data of distributing.
In this step, sensor node comprises according to the bandwidth for transmission data of distributing:
Sensor node receives the allocated bandwidth order; If the bandwidth of distributing is designated the bandwidth of distributing into sensor node; The port number that then enables according to sensor node calculates and to be used for the bandwidth that each enables passage, on the passage of respective enable according to the bandwidth for transmission data of calculating; If the bandwidth of distributing is designated in the sensor node each enables the bandwidth of channel allocation, the passage transmitting data that is then enabling according to the bandwidth of this distribution.
Preferably, after sensor node receives the allocated bandwidth order, further comprise:
Sensor node becomes characteristic value data with the time-domain signal data reduction that collects, as data waiting for transmission according to the algorithm that is provided with in advance.
In the embodiment of the invention, the algorithm that is provided with in advance can be a fourier transform algorithm etc.
Characteristic value comprises: instantaneous value, effective value, maximum, minimum value, mean value, mean difference, standard deviation, variance and tiltedly poor etc. a kind of or its combination in any.
Further comprise:
Sensor node to inner memory, offers user's download to carry out data analysis with the time-domain signal storage that collects after gathering completion.
In the embodiment of the invention, after gathering completion, offering user's download can be when wireless sensor network is in the free time, exports through enabling passage; Also can be the time-domain signal data that derive storage by the user through the interface of sensor node.
Fig. 2 is the method idiographic flow sketch map based on wireless sensor network transmission data of the embodiment of the invention.Referring to Fig. 2, this flow process comprises:
Step 202 is calculated the total number of channels amount that enables;
In this step, radio network gateway is at first inquired about the sensor node in its wireless sensor network, according to the number of channels that each sensor node enables, calculates the total number of channels amount that all nodes enable.
Step 203 is calculated the bandwidth that each sensor node distributes according to the total number of channels amount that enables;
In this step, the bandwidth that each sensor node distributes equals the effective transmission bandwidth of wireless sensor network and multiply by the number of channels that sensor node enables with the merchant of the total number of channels amount that enables.
Step 204 is sent the allocated bandwidth order to sensor node;
In this step, radio network gateway sends the allocated bandwidth order to sensor node, carries the bandwidth information of distributing into the respective sensor node.
In this step; After sensor node receives the allocated bandwidth order; Through special algorithm, the characteristic value that becomes the user to need the time-domain signal data reduction that collects is like instantaneous value, effective value, maximum, minimum value, mean value, mean difference, standard deviation, variance, tiltedly poor etc.
In this step; Sensor node is according to bandwidth of distributing and the port number that enables; Calculate the bandwidth of each passage that enables, and characteristic value is sent to gateway, in simultaneously that complete time-domain signal storage to sensor node is the inner memory according to calculating good bandwidth.
Step 207 after gathering completion, is downloaded the time-domain signal data of storage to carry out data analysis.
Fig. 3 is another idiographic flow sketch map of method based on wireless sensor network transmission data of the embodiment of the invention.Referring to Fig. 3, if include 1 radio network gateway in a wireless sensor network, 5 sensor nodes; Each sensor node has enabled 4 passages, and the effective transmission bandwidth of wireless sensor network is 8Kbytes/s, and learning after then radio network gateway is at first inquired about has 5 sensor nodes in its wireless sensor network; One has 20 passages that enable; Then with the effective transmission bandwidth 8Kbytes/s of wireless sensor network divided by the number of channels that enables 20, the bandwidth that draws each channel allocation that enables is 400bytes/s, because each sensor node enabled 4 passages; Therefore; The bandwidth that radio network gateway distributes for each sensor node is 1.6Kbytes/s, and sensor node transmits characteristic value according to the passage 400bytes/s that whenever enables after receiving the allocated bandwidth order; Simultaneously; Sensor node actual samples speed can be higher than 400bytes/s, sensor node can memory with complete time-domain signal data storage intra-node in, gathering can be for the user's download analysis after accomplishing.
By above-mentioned visible; The embodiment of the invention is based on the method for wireless sensor network transmission data; Obtain the sensor node information that enables in the wireless sensor network through inquiry; According to the effective transmission bandwidth of wireless sensor network,, make sensor node carry out transfer of data according to the bandwidth of distributing for the sensor node that enables distributes bandwidth.Like this; When in wireless sensor network, having a large amount of sensor node, radio network gateway is the receiving sensor node data of gathering to greatest extent, make each sensor node transfer bandwidth be no more than effective transmission bandwidth of radio network gateway; Guarantee that each sensor node is smooth and easy with communicating by letter of radio network gateway; Avoid the obstruction and the data re-transmission of wireless sensor network, reduced the power consumption of wireless sensor network system, promoted the transmission reliability of wireless sensor network; Further, radio network gateway guarantees that according to the bandwidth that sensor node and each sensor node of number of channels dynamic assignment that enables take bandwidth can be fully utilized, and has improved bandwidth utilization; And, the time-domain signal data are carried out eigenvalue calculation, reduced data quantity transmitted; Shortened and transmitted the required time; And in the memory that the time-domain signal storage that collects is extremely inner, after gathering completion, offer user's download, make the user can carry out detailed data analysis.
Fig. 4 is that the embodiment of the invention is based on wireless sensor network apparatus for transmitting data structural representation.Referring to Fig. 4, this device is radio network gateway, comprising: sensor node information inquiry module, bandwidth allocation module and allocated bandwidth command transfer module, wherein,
Sensor node information inquiry module, the sensor node information that enables in the wireless sensor network is obtained in inquiry;
Bandwidth allocation module according to effective transmission bandwidth of wireless sensor network and the sensor node information that enables obtained, is that the sensor node that enables distributes bandwidth;
Allocated bandwidth command transfer module is sent the allocated bandwidth order to sensor node, carries the bandwidth of distribution, so that sensor node is according to the bandwidth for transmission data of distributing.
Fig. 5 is the system configuration sketch map of the embodiment of the invention based on wireless sensor network transmission data.Referring to Fig. 5, this system comprises: radio network gateway and sensor node, wherein,
Radio network gateway, the sensor node information that enables in the wireless sensor network is obtained in inquiry; According to effective transmission bandwidth of wireless sensor network and the sensor node information that enables obtained, be that the sensor node that enables distributes bandwidth; Send the allocated bandwidth order to sensor node, carry the bandwidth of distribution;
Sensor node receives the allocated bandwidth order that radio network gateway sends, according to the bandwidth for transmission data of distributing.
Wherein,
Radio network gateway comprises: sensor node information inquiry module, bandwidth allocation module and allocated bandwidth command transfer module, wherein,
Sensor node information inquiry module, the sensor node information that enables in the wireless sensor network is obtained in inquiry;
Bandwidth allocation module according to effective transmission bandwidth of wireless sensor network and the sensor node information that enables obtained, is that the sensor node that enables distributes bandwidth;
Allocated bandwidth command transfer module is sent the allocated bandwidth order to sensor node, carries the bandwidth information of distribution.
Further, radio network gateway also comprises:
Data forwarding module, the data that the receiving sensor node sends are transmitted.
Sensor node comprises: sensor node feedback information module and data transmission module, wherein,
Sensor node feedback information module receives the querying command of radio network gateway, with the sensor node feedback information that enables to radio network gateway;
Data transmission module receives the allocated bandwidth order that radio network gateway sends, according to the bandwidth for transmission data of distributing.
Preferably, sensor node further comprises:
The characteristic value data computing module, the algorithm according to being provided with in advance becomes characteristic value data with the time-domain signal data reduction that collects, and exports data transmission module to as data waiting for transmission.
This sensor node can further include:
Memory is used for the time-domain signal data that storage of collected arrives, and after gathering completion, offers user's download to carry out data analysis.
The above is merely preferred embodiment of the present invention, is not to be used to limit protection scope of the present invention.All within spirit of the present invention and principle, any modification of being done, be equal to replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. method based on wireless sensor network transmission data is characterized in that this method comprises:
The sensor node information that enables in the wireless sensor network is obtained in inquiry;
According to effective transmission bandwidth of wireless sensor network and the sensor node information that enables obtained, be that the sensor node that enables distributes bandwidth;
Send the allocated bandwidth order to sensor node, carry the bandwidth of distribution, so that sensor node is according to the bandwidth for transmission data of distributing.
2. the method for claim 1 is characterized in that, further comprises:
Sensor node becomes characteristic value data with the time-domain signal data reduction that collects, as data waiting for transmission according to the algorithm that is provided with in advance.
3. method as claimed in claim 2 is characterized in that, further comprises:
Sensor node to inner memory, offers user's download to carry out data analysis with the time-domain signal storage that collects after gathering completion.
4. method as claimed in claim 2 is characterized in that, said characteristic value comprises: instantaneous value, effective value, maximum, minimum value, mean value, mean difference, standard deviation, variance and tiltedly poor etc. a kind of or its combination in any.
5. like each described method of claim 1 to 4; It is characterized in that; The said sensor node information that enables is the port number information that sensor node enables; Said according to effective transmission bandwidth of wireless sensor network and the sensor node information that enables obtained, for distributing bandwidth, the sensor node that enables comprises:
The port number sum that enables that the sensor node that respectively enables in the radio network gateway statistics wireless sensor network comprises according to effective transmission bandwidth of wireless sensor network and the port number sum that enables, is the passage mean allocation bandwidth that enables.
6. like each described method of claim 1 to 4; It is characterized in that; The said sensor node information that enables is port number information and the sensor node data amount information waiting for transmission that sensor node enables; Said according to effective transmission bandwidth of wireless sensor network and the sensor node information that enables obtained, for distributing bandwidth, the sensor node that enables comprises:
The sensor node data total amount waiting for transmission information that respectively enables in the radio network gateway statistics wireless sensor network; According to effective transmission bandwidth of wireless sensor network and data total amount waiting for transmission; Calculate the data to be transmitted required transmission time of total amount; The port number information that enables according to transmission time, the sensor node data amount information waiting for transmission that calculates and this sensor node, each the passage mean allocation bandwidth that enables for this sensor node.
7. one kind based on the wireless sensor network apparatus for transmitting data, it is characterized in that this device comprises: sensor node information inquiry module, bandwidth allocation module and allocated bandwidth command transfer module, wherein,
Sensor node information inquiry module, the sensor node information that enables in the wireless sensor network is obtained in inquiry;
Bandwidth allocation module according to effective transmission bandwidth of wireless sensor network and the sensor node information that enables obtained, is that the sensor node that enables distributes bandwidth;
Allocated bandwidth command transfer module is sent the allocated bandwidth order to sensor node, carries the bandwidth of distribution, so that sensor node is according to the bandwidth for transmission data of distributing.
8. system based on wireless sensor network transmission data is characterized in that this system comprises: radio network gateway and sensor node, wherein,
Radio network gateway, the sensor node information that enables in the wireless sensor network is obtained in inquiry; According to effective transmission bandwidth of wireless sensor network and the sensor node information that enables obtained, be that the sensor node that enables distributes bandwidth; Send the allocated bandwidth order to sensor node, carry the bandwidth of distribution;
Sensor node receives the allocated bandwidth order that radio network gateway sends, according to the bandwidth for transmission data of distributing.
9. system as claimed in claim 8 is characterized in that, said sensor node comprises: sensor node feedback information module and data transmission module, wherein,
Sensor node feedback information module receives the querying command of radio network gateway, with the sensor node feedback information that enables to radio network gateway;
Data transmission module receives the allocated bandwidth order that radio network gateway sends, according to the bandwidth for transmission data of distributing.
10. system as claimed in claim 9 is characterized in that, said sensor node further comprises: the characteristic value data computing module and/or, memory, wherein,
The characteristic value data computing module, the algorithm according to being provided with in advance becomes characteristic value data with the time-domain signal data reduction that collects, and exports data transmission module to as data waiting for transmission;
Memory is used for the time-domain signal data that storage of collected arrives, and after gathering completion, offers user's download to carry out data analysis.
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| CN104912732A (en) * | 2015-05-21 | 2015-09-16 | 广东志成冠军集团有限公司 | Monitoring system for wind generating set |
| CN104912732B (en) * | 2015-05-21 | 2017-10-13 | 广东志成冠军集团有限公司 | Wind power generating set monitoring system |
| CN105959981A (en) * | 2016-02-29 | 2016-09-21 | 青岛克路德机器人有限公司 | Remote control fire-fighting robot communication method and fire-fighting robot |
| CN106102140A (en) * | 2016-05-27 | 2016-11-09 | 北京灵龄科技有限责任公司 | The power consumption optimization method of wireless senser and device |
| CN108510721A (en) * | 2017-02-28 | 2018-09-07 | 通力股份公司 | Trigger sensor data are from the method for wireless device transmissions, network node and system |
| CN111585877A (en) * | 2020-04-22 | 2020-08-25 | 菱亚能源科技（深圳）股份有限公司 | Intelligent power grid gateway based on optical carrier |
| CN114629737A (en) * | 2020-12-14 | 2022-06-14 | 深圳Tcl新技术有限公司 | Bandwidth adjusting method and device, gateway equipment and storage medium |
| CN114629737B (en) * | 2020-12-14 | 2024-03-12 | 深圳Tcl新技术有限公司 | Bandwidth adjustment method, device, gateway equipment and storage medium |
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