CN102036369A - Method and relevant equipment for determining position information of sensor network node - Google Patents
Method and relevant equipment for determining position information of sensor network node Download PDFInfo
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Abstract
The invention discloses a method and relevant equipment for determining the position information of a sensor network node in order to solve the problems of complicated operations and high implementation difficulty in the prior art. The method comprises the following steps: obtaining the position information of a base station corresponding to the sensor network node after receiving the detection data sent by the sensor network node; and using the obtained position information of the base station as the position information of the sensor network node.
Description
Technical field
The present invention relates to wireless sensor network and communication technical field, relate in particular to a kind of equipment of method and a kind of definite sensor network nodes positional information of definite sensor network nodes positional information.
Background technology
Along with the fast development of microelectric technique, microelectromechanical systems (MEMS, Micro-Electro-Mechanical System) technology in recent years, the low-power consumption transducer that makes design, manufacturing and application possess perceptional function and radio communication function becomes possibility.Sensor-based wireless sensor network also arises at the historic moment.Can predict, wireless sensor network all has wide practical use in fields such as medical treatment, public safety, military and predetermined monitoring.As long as near the place that incident may take place, dispose wireless senser, just can collect information of interest.
In wireless sensor network, generally include the sensor network nodes of three types of sensor node, leader cluster node and aggregation nodes, wherein: sensor node (Sensor Node) is equipped with various types of transducers, is used for peripheral predefined parameter is detected, and wherein predefined parameter comprises other parameters such as environmental parameters such as temperature, humidity, specific gas molecular concentration and vacant parking stall quantity; Leader cluster node (CH, Cluster Head) as the collector node of regional area data, the detection data that sensor node (being the sensor node related with this leader cluster node in the presumptive area) in being used to collect bunch gets access to, and the detection data that will collect send to the Ethernet or the mobile communications network of aggregation node or access, the detection data that leader cluster node will be collected can also be carried out fusion treatment to data before sending to aggregation node or access network, can send to aggregation node and access network detecting data by the multi-hop mode between the leader cluster node; Aggregation node is used for the detection data that send at the comparatively intensive regional collecting sensor node of leader cluster node or leader cluster node, and will detect data by the Ethernet that inserts or mobile communications network and send to application server.Aggregation node can be divided into fixedly aggregation node (FSN, Fixed Sink Node) and mobile sink node (MSN, Mobile SinkNode).Leader cluster node and aggregation node belong to via node.
Obviously, in wireless sensor network, detect the positional information of data, in other words the positional information that detects the sensor node of described detection data is vital, if do not have positional information or do not have relatively accurate positional information, the detected detection data of sensor node are nonsensical.For example, for fire alarm, fire has taken place if the monitor staff can only be known from application server, and can not know the positional information of breaking out of fire, as knowing that fire has taken place this city, and do not know it is that fire has taken place near that street, sub-district or the building is nonsensical, also just can't correspondence tackle treatment measures timely and effectively.
In existing scheme, determine the positional information of sensor node in the following ways:
The first, when disposing sensor node, positional information is preset in the sensor node, the subsequent sensor node is carried at default positional information to detect in the data when taking place to detect data and sends to leader cluster node or aggregation node;
The second, global positioning system (GPS is installed in sensor node, Global Positioning Systems) receiver or other positioners, make sensor node can know the positional information of self, the subsequent sensor node is carried at default positional information to detect in the data when send detecting data and sends to leader cluster node or aggregation node.
For above-mentioned first kind of mode, because the quantity of sensor node is more, all the predeterminated position information operating is comparatively complicated in each sensor node, be unfavorable for the repeated use of sensor node in addition, because when a sensor node need be re-deployed to other zones, all need to reset positional information;
For the above-mentioned second way, because when GPS receiver or the work of other positioners, self needs a large amount of energy supplies, and because sensor node often is deployed in remote or personnel are difficult on the particular location of arrival, it will be very loaded down with trivial details that regular replacing provides the required operation of power supply units such as battery of the energy, thereby feasibility is not high, usually the volume of sensor node is all smaller in addition, positioner such as GPS receiver is installed in sensor node can increase the volume of sensor node, it is bigger to implement difficulty, and cost is also very high.
Summary of the invention
The embodiment of the invention provides a kind of method of definite sensor network nodes positional information, in order to solve the prior art complex operation, implements the big problem of difficulty.
Accordingly, the embodiment of the invention also provides a kind of device of definite sensor network nodes positional information.
The technical scheme that the embodiment of the invention provides is as follows:
A kind of method of definite sensor network nodes positional information comprises:
After receiving the detection data that sensor network nodes sends, obtain the positional information of the base station of described sensor network nodes correspondence; And
With the positional information of the described base station that gets access to positional information as described sensor network nodes.
A kind of equipment of definite sensor network nodes positional information comprises:
Receiving element is used to receive the detection data that sensor network nodes is sent;
Acquiring unit is used for obtaining the positional information of the base station of described sensor network nodes correspondence after receiving element receives the detection data that sensor network nodes sends;
Determining unit is used for the positional information of the positional information of described base station that acquiring unit is got access to as described sensor network nodes.
The embodiment of the invention after receiving the detection data that sensor network nodes sends, is determined the positional information of self by the base station, and with the positional information of the base station self the determined positional information as the sensor network nodes that sends described detection data.Utilize the positioning function of existing mobile communication network to determine the positional information of each category node in the wireless sensor network, need not in sensor network nodes, to be provided with in advance positional information or mounting and positioning device, thereby solved the problem of prior art complicated operation, exploitativeness difference when determining the sensor network nodes positional information, the scheme of feasible definite sensor network nodes positional information is provided.
Description of drawings
Fig. 1 is the main realization principle flow chart of the embodiment of the invention;
Fig. 2 determines the process flow diagram of sensor network nodes positional information for the embodiment of the invention;
Fig. 3 utilizes location-based business to determine the flow chart of base station position information;
The structural representation of the equipment of definite sensor network nodes positional information that Fig. 4 provides for the embodiment of the invention;
The another kind that Fig. 5 provides for the embodiment of the invention is determined the structural representation of the equipment of sensor network nodes positional information.
Embodiment
There is the problem of complicated operation in the scheme of existing definite sensor node positional information.It is perfect that the mobile communications network of considering 2G networks such as comprising GSM, IS-95 at present and TD-SCDMA, WCDMA, 3G networks such as CDMA2000, WiMAX has infrastructure, the advantage of wide coverage, the embodiment of the invention provide a kind of scheme of utilizing mobile radio communication to determine the positional information of sensor node.
In existing mobile communication network, location-based business (LBS, Location Based Service) has become a kind of commonly used and important business.Location-based business can provide the current present position of this user information to the user by the position functions entity in the mobile communications network, and for example the electronic navigation business just belongs to location-based business.
The deployment density of base station or other access devices can reach whenever to be separated by 100～200 meters and just be provided with a base station in the existing mobile radio communication, for a lot of demands, 100～200 meters position error is fully can be received, and for example difference is can be uncared-for in two places of 100～200 meters in the aspect differences such as special gas molecular density of humidity, the predetermined pollution level of reflection.
Based on above-mentioned thought, the embodiment of the invention proposes via node the detected detection data of the sensor node of collecting is sent to corresponding base station, after the base station receives and detects data, further determine the positional information of self, with the positional information of described base station positional information, provide simple possible ground to determine the scheme of sensor node positional information then as the corresponding sensor node.
Be explained in detail to the main realization principle of embodiment of the invention technical scheme, embodiment and to the beneficial effect that should be able to reach below in conjunction with each accompanying drawing.
As shown in Figure 1, the main realization principle process of the embodiment of the invention is as follows:
To introduce two embodiment in detail and come the main realization principle of the inventive method is explained in detail and illustrates according to foregoing invention principle of the present invention below.
Embodiment one
Accompanying drawing 2 is the process flow diagram of definite sensor network nodes positional information of the embodiment of the invention one proposition.
Step 21, via node receives the detection data that sensor node is sent, comprise that specifically detection data or aggregation node that the sensor node of leader cluster node in receiving bunch sent receive the detection data that leader cluster node is sent, described detection data are that sensor node is detected.Can the setting sensor node detected detection predefined parameter periodically be reported leader cluster node; Perhaps the indication according to leader cluster node reports detected detection data, for example leader cluster node to bunch in sensor node send CH_HELLO message, after sensor node receives CH_HELLO message, detected detection data are sent to described leader cluster node;
Step 22, the detection data that via node is sent sensor node send to corresponding base station, the base station of described correspondence can be the access base station of via node, wherein access base station is meant the communication quality of via node according to each base station, with the base station of communication quality the best as being this via node serving base station, need not the operation of any artificial Reparametrization when in this case, sensor node is repositioned at other places; The base station of described correspondence also can be the base station of artificial preassigned sensor network nodes correspondence, in this case, when via node is not set up communication linkage with corresponding base station, can be by the mode of multi-hop, promptly the mode of transmitting by other via nodes sends to corresponding base station with detecting data;
The corresponding relation of base station among specified sensor network node and the mobile network in advance, the establishing method configuration personnel that can serve as reasons manually set the base station of each sensor network nodes correspondence, and corresponding relation is stored in the sensor network nodes, for example preserve the Base Station Identification of the base station of this sensor node correspondence in (1) sensor node, the subsequent sensor node is included in via nodes such as sending to leader cluster node in the detected detection data with the Base Station Identification of correspondence, via node sends to the base station of described Base Station Identification representative according to detecting the Base Station Identification that comprises in the data by modes such as multi-hops; Each sensor node in perhaps preserving in (2) leader cluster node bunch and the corresponding relation of base station, follow-up receive the detection data that sensor node sends after, find the base station that sends the sensor node correspondence that detects data, and the detection data that will receive send to the base station of the correspondence that finds; Perhaps preserve the Base Station Identification of this leader cluster node correspondence in (3) leader cluster node, after the detection data that sensor node in this leader cluster node receives bunch is sent, the detection data that receive are sent to the base station of the Base Station Identification representative of this leader cluster node correspondence; The mode of the corresponding relation of base station here no longer describes in detail among other settings similarly and preservation sensor network nodes and the mobile network.
Please refer to table 1, be the corresponding relation of base station and sensor node
| Base Station Identification | The sensor node sign |
| BNO.1 | SN1、SN2、SN3 |
| BNO.2 | SN4、SN5 |
The advantage of the base station by above-mentioned artificial mode specified sensor node correspondence is, the base station of communication quality the best is not to be the node nearest with the sensor network nodes geographic distance in some cases, can determine the positional information of sensor network nodes like this in subsequent process more accurately.
After step 23, base station receive the detection data that the via node that comprises leader cluster node sends, determine the positional information of described base station self;
The positional information of self that step 24, base station are determined step 23 enters step 25 as the positional information of the sensor node that detects above-mentioned detection data;
Step 25, the base station based on the protocol format of network communication of wireless sensor, the detection data that analyzing step 22 receives, the positional information of the sensor node that step 24 is determined writes the field that is used for record position information in these detection data, with this additional location information in detecting data;
Step 26, the core net that the base station connects by mobile communications network or mobile communications network with in the step 25 the detection data of additional location information send to the application server that needs the detection data that sensor arrives, carry out subsequent analysis processing for the monitor staff.
In above-mentioned steps 24, the positional information of self can also be detected the positional information of the via node that comprises leader cluster node of data in the base station as transmission or forwarding.
Above-mentioned steps 21 to 24 can realize determining the purpose of sensor network nodes positional information.
In above-mentioned steps 23, the base station can also judge whether and need detect additional location information in the data at this that concrete determination methods is as follows after receiving the detection data that the via node that comprises leader cluster node sends:
The excessive load that brings to the base station for fear of the positional information of determining sensor network nodes, in the base station, can preserve the sensor network nodes identification list, in the base station when preload surpasses certain threshold value, the base station judges that the sensor network nodes sign that comprises in the described detection data receive is whether in described sensor network nodes identification list, if, determine the positional information of sensor network nodes by step 24 to step 26, otherwise do not determine the above-mentioned treatment step of sensor network nodes; Perhaps,
In detecting data, include and be used for indicating the predetermined sign that whether need detect the data additional location information at this, the detection data that comprise positional information that possessed the sensor network nodes transmission of positioning function for part, the positional information of determining sensor network nodes once more is unnecessary, so sensor network nodes can above-mentioned predetermined sign do not need be set to additional location information when sending the detection data.The base station need to determine whether additional location information by the above-mentioned predetermined sign that reads in the detection data that receive, if, determine the positional information of sensor network nodes to step 26 by step 24, otherwise do not determine the above-mentioned treatment step of sensor network nodes, to alleviate the live load of base station.
In above-mentioned steps 23, the base station can utilize following mode to determine the positional information of self:
Usually a lot of base stations all have positioners such as GPS receiver, so the base station can use the positioner of self to determine the positional information of self;
The base station can also utilize location-based business to determine the positional information of self, and detailed process please refer to accompanying drawing 3:
Step 31, the LBS service request is initiated to network access equipments such as IADs in the base station, comprises the Base Station Identification of this base station in the described LBS service request, for example the cell ID Cell ID of this base station range etc.;
After step 32, network access equipments such as IAD receive the LBS service request of base station transmission, this LBS service request of position application server forwards such as (LSP, Location Service Platform) of the positioning service platform in the mobile network;
Step 33, after positioning service platform LSP received the LBS service request that IAD sends, the positioning function entity in mobile communications network sent network location request, comprises described Base Station Identification in this network location request, for example Cell ID;
Step 34, the network location request that positioning function entity in the mobile communications network is sent according to LSP, the Base Station Identification that in according to network location request, comprises, after determining the positional information of base station, for example positional information can be for latitude and longitude information etc., and the network positions response that will comprise the positional information of determining sends to positioning service platform LSP;
Step 35, positioning service platform LSP obtains positional information from the response of the network positions that receives, and the LBS service response that will comprise the positional information that gets access to sends to the network access equipments such as IAD of described base station correspondence;
The LBS service response that step 36, network access equipments such as IAD will comprise positional information is transmitted to the base station that sends corresponding LBS service request.
In present existing location-based business all is by Client-initiated usually, the mobile network is by user's attaching position register (HLR, Home Location Register) or the Lh of 3GPP normalized definition and Lg interface obtain cell ID Cell ID into this user's service, again by determining that coverage is that the positional information of the base station of the sub-district that identified of Cell ID is determined user's current position information, so in the step of above-mentioned definite base station position information, omitted the step of obtaining user's Cell ID in the existing location-based business.
In addition, LSP also includes Serving Mobile Location Center (SMLC, Serving Mobile Location Center) unit, this SMLC unit is used to store the corresponding relation of Cell ID and positional information (for example latitude and longitude information), when LSP receives the LBS service request that IAD sends in above-mentioned steps 32, before the positioning function entity in network sends network location request, at first search and self whether stored the Cell ID corresponding position information that comprises in the LBS service request that receives, if self stored the Cell ID corresponding position information that comprises in the LBS service request, then need not again the positioning function entity in network and send network location request, promptly need not to carry out step 33 and step 34, the network access equipments such as IAD that the LBS service response that will comprise the positional information that finds in step 35 sends to described base station correspondence get final product, to reduce the waste of network transmission resource.
The scheme of definite sensor network nodes positional information that the embodiment of the invention provides equally also is applicable to and has communication linkage with mobile communications network but do not have user ID, for example the positional information of the equipment of MSISDN.
The embodiment of the invention after receiving the detection data that sensor network nodes sends, is determined the positional information of self by the base station, and with the positional information of the base station self the determined positional information as the sensor network nodes that sends described detection data.Be somebody's turn to do the scheme of the positional information of determining sensor network nodes owing to need not artificially allocation position information in sensor node, thereby alleviated the loaded down with trivial details property of handling; Also need not in sensor node, to increase positioners such as GPS receiver in addition, not only can not increase the volume of sensor node, can not increase extra cost yet, need not the power supply unit of regular replacing sensor node, and the reusable situation of suitable sensor node.
Embodiment two
Be the positional information of determining the detection data that receive by base station or mobile communications network access device in embodiment one, and detect additional location information in data at this.Present embodiment provides the positional information of being determined the detection data that receive by via node, and detects the scheme of additional location information in data at this.
After comprising that leader cluster node, aggregation node via node receive the detection data that other sensor network nodes send, determine to send the base station that this detects the sensor network nodes correspondence of data, concrete definite mode can for:
Via node is according to the sign of the sensor network nodes that comprises in the detection data that receive, from the corresponding relation of sensor network nodes and the Base Station Identification of storage in advance, select the corresponding Base Station Identification of sign of the sensor network nodes that comprises in the detection data that receive, with base station, the base station of the Base Station Identification correspondence selected as the sensor network nodes correspondence that sends these detection data, wherein the description in the step 22 is similar among the corresponding relation of sensor network nodes of storing in advance and Base Station Identification and the embodiment one, here no longer describes in detail;
Perhaps, via node is with the base station as the sensor network nodes correspondence of determining to send these detection data, the base station of communication quality the best of providing on self present position.
Determine the base station of the sensor network nodes correspondence that sends these detection data at via node after, obtain the positional information of the base station of determining, the concrete mode of obtaining base station position information is as follows:
Via node sends the positioning service request to the base station of determining, and from the positioning service of this base station feedback response, obtain the positional information of this base station that comprises in the positioning service response, wherein the positional information that comprises in the positioning service of the base station feedback response is the base station after receiving the positioning service request that via node sends, self the positional information of determining according to the scheme similar to step 23 among the embodiment one.
Via node gets access to the positional information of this base station from the positioning service of base station feedback response after, with the positional information that gets access to positional information as the sensor network nodes that sends above-mentioned detection data.
Preferably, via node is after the positional information of determining the sensor network nodes that sends above-mentioned detection data, the positional information of the sensor network nodes determined can also be attached to and detect in the data, and the detection data of additional location information have sent to the application server that needs to detect data.
Correspondingly, the embodiment of the invention also provides a kind of equipment of definite sensor network nodes positional information, and as shown in Figure 4, this equipment comprises receiving element 401, acquiring unit 402, determining unit 403, and is specific as follows:
Receiving element 401 is used for the detection data that the receiving sensor network node is sent;
Acquiring unit 402 is used for obtaining the positional information of the base station of described sensor network nodes correspondence after receiving element 401 receives the detection data;
Determining unit 403 is used for the positional information of the positional information of described base station that acquiring unit 402 is determined as the described sensor network nodes that sends described detection data.
Preferably, the equipment in the accompanying drawing 4 also comprises extra cell 404 and transmitting element 405, wherein
Extra cell 404 is used for the positional information that determining unit 403 is determined is attached to the detection data that receiving element 401 receives;
Transmitting element 405 is used for the detection data of additional location information are sent to the application server that needs detect data.
When the equipment of above-mentioned definite sensor network nodes positional information was the base station of described sensor network nodes correspondence, the acquiring unit 402 in this equipment was used to obtain the positional information of self;
Preferably, please refer to accompanying drawing 5, when the equipment of the definite sensor network nodes positional information in accompanying drawing 4 is the base station of sensor network nodes correspondence, this equipment also comprises judging unit 501, be used for after receiving element 401 receives described detection data, judge whether need be in the detection data that receive additional location information;
Determining at judging unit 501 need be in the detection data that receive during additional location information, acquiring unit 402 and determining unit 403 are carried out corresponding processing respectively, when determining in the detection data that need not receiving additional location information at judging unit 501, acquiring unit 402, determining unit 403, extra cell 404 can not carried out corresponding processing, and directly the detection data that receiving element 401 is received send to the application server that needs to detect data.
Similar with the base station, the equipment of above-mentioned definite sensor network nodes positional information can be other mobile communications network access devices.
When the equipment of above-mentioned definite sensor network nodes positional information was via node, the acquiring unit 402 in this equipment was used for sending Location Request to the base station of sensor network nodes correspondence, and obtains positional information from the location response of correspondence.
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, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (14)
1. the method for a definite sensor network nodes positional information is characterized in that, comprising:
After receiving the detection data that sensor network nodes sends, obtain the positional information of the base station of described sensor network nodes correspondence; And
With the positional information of the described base station that gets access to positional information as described sensor network nodes.
2. the method for claim 1 is characterized in that, described base station is the base station of communication quality the best on the described sensor network nodes present position, or
Described base station is the corresponding access base station of preassigned described sensor network nodes.
3. the method for claim 1 is characterized in that, after the positional information of positional information as described sensor network nodes of the described base station that will get access to, also comprises:
The positional information of described sensor network nodes is attached in the detection data that receive, and
The detection data of additional location information are sent to the application server that needs to detect data.
4. as the described method of arbitrary claim in the claim 1 to 3, it is characterized in that the base station of described sensor network nodes correspondence is the base station of the described detection data of transmission;
Then described receive the detection data that sensor network nodes sends after, the positional information of obtaining the base station of described sensor network nodes correspondence comprises:
The base station that described transmission detects data obtains the positional information of self after receiving the detection data that sensor network nodes sends.
5. method as claimed in claim 4, it is characterized in that, after the base station that described transmission detects data receives the detection data that sensor network nodes sends,, determine the positional information of self in that determine need be in the detection data that receive during additional location information.
6. method as claimed in claim 5 is characterized in that, the base station that described transmission detects data determine whether need be in the detection data that receive additional location information, specifically comprise:
The base station that described transmission detects data obtains the sensor network nodes sign that comprises in the detection data that receive, and
Determine the information of additional location information in the detection data that each sensor network nodes sign corresponding sensor network node sends according to the whether needs of the sensor network nodes that gets access to sign and storage in advance, determine whether should be in the detection data that receive additional location information.
7. method as claimed in claim 5 is characterized in that, the base station that described transmission detects data determine whether need be in the detection data that receive additional location information, specifically comprise:
Described transmission detects the base station of data and judges whether comprise predetermined sign in the detection data that receive; And
When in the detection data that receive, comprising described predetermined sign, determine need be in the detection data that receive additional location information, and
When in the detection data that receive, not comprising described predetermined sign, determine need not additional location information in the detection data that receive.
8. method as claimed in claim 4 is characterized in that, the base station that described transmission detects data obtains the positional information of self, specifically comprises:
The base station that described transmission detects data sends the positioning service request by IAD to the positioning service server, carries the Base Station Identification of described base station in the described positioning service request; And
Reception positioning service server responds by the positioning service of the correspondence that comprises positional information that IAD is sent, the positional information that comprises in the described positioning service response be the positioning service server according to the Base Station Identification that comprises in the described positioning service request, from the positioning function entity, get access to;
The base station that described transmission detects data obtains described positional information from the positioning service response that receives.
9. method as claimed in claim 4 is characterized in that, the base station that described transmission detects data obtains the positional information of self, specifically comprises:
The base station that described transmission detects data sends the positioning service request by IAD to the positioning service server, comprises the Base Station Identification of described base station in the described positioning service request, and
Receive the positioning service response that includes positional information that described positioning service server is sent by IAD, the positional information that comprises in the described positioning service response be the positioning service server according to the Base Station Identification that comprises in the positioning service request, the described Base Station Identification corresponding position information that from the corresponding relation of the Base Station Identification of self storage and positional information, finds;
The base station that described transmission detects data obtains described positional information from the positioning service response that receives.
10. method as claimed in claim 4 is characterized in that, the base station that described transmission detects data utilizes the positioner of self installing to determine the positional information of self.
11., it is characterized in that via node obtains the positional information of the base station of described sensor network nodes correspondence after receiving the detection data that sensor network nodes sends as the described method of arbitrary claim in the claim 1 to 3.
12. method as claimed in claim 11 is characterized in that, via node obtains the positional information of the base station of described sensor network nodes correspondence, specifically comprises:
Via node sends the positioning service request to the base station of sensor network nodes correspondence, and
Obtain positional information the positioning service response of the correspondence of sending from described base station, described positional information is the Base Station Identification of described base station based on the base station, by what determine to the position fixing process of positioning service server initiation, or described base station utilizes the positioner of self installing to determine the positional information of self.
13. the equipment of a definite sensor network nodes positional information is characterized in that, comprising:
Receiving element is used to receive the detection data that sensor network nodes is sent;
Acquiring unit is used for obtaining the positional information of the base station of described sensor network nodes correspondence after receiving element receives the detection data that sensor network nodes sends;
Determining unit is used for the positional information of the positional information of described base station that acquiring unit is got access to as described sensor network nodes.
14. equipment as claimed in claim 13 is characterized in that, also comprises:
Extra cell is used for the positional information of described sensor network nodes is attached to the detection data that receive;
Transmitting element is used for the detection data of additional location information are sent to the application server that needs detect data.
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| CN2009101969011A CN102036369A (en) | 2009-09-29 | 2009-09-29 | Method and relevant equipment for determining position information of sensor network node |
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| CN2009101969011A CN102036369A (en) | 2009-09-29 | 2009-09-29 | Method and relevant equipment for determining position information of sensor network node |
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| CN103139903A (en) * | 2011-11-28 | 2013-06-05 | 无锡物联网产业研究院 | Internet of Things locating information processing method, system and associated devices |
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| CN105052073A (en) * | 2013-01-10 | 2015-11-11 | 英特尔公司 | Aggregating and processing distributed data on ultra-violet (uv) exposure measurement |
| CN107579887A (en) * | 2017-09-13 | 2018-01-12 | 深圳市鑫汇达机械设计有限公司 | A kind of intelligent domestic system based on wireless sensor network |
| CN107579887B (en) * | 2017-09-13 | 2018-10-26 | 北京康智乐思网络科技有限公司 | A kind of intelligent domestic system based on wireless sensor network |
| CN108022401A (en) * | 2017-11-30 | 2018-05-11 | 南京南邮信息产业技术研究院有限公司 | The quick distribution method of perimeter defense system and system based on wireless senser |
| CN108022401B (en) * | 2017-11-30 | 2020-09-15 | 南京南邮信息产业技术研究院有限公司 | Perimeter protection system rapid layout method based on wireless sensor |
| CN113781834A (en) * | 2021-10-29 | 2021-12-10 | 深圳市捷顺科技实业股份有限公司 | Parking space monitoring method, device, equipment and storage medium |
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Application publication date: 20110427 |