CN104349453A - Positioning method of mobile sensor node - Google Patents
Positioning method of mobile sensor node Download PDFInfo
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- CN104349453A CN104349453A CN201310314029.2A CN201310314029A CN104349453A CN 104349453 A CN104349453 A CN 104349453A CN 201310314029 A CN201310314029 A CN 201310314029A CN 104349453 A CN104349453 A CN 104349453A
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- bluetooth
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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 positioning method of a mobile sensor node. The positioning method includes the following steps that: A, the mobile sensor node periodically transmits Bluetooth broadcast messages; B, all Bluetooth access points which receive the Bluetooth broadcast messages sent by the mobile sensor node obtain received signal strength indication (RSSI) of the mobile sensor node through measuring the signal strength of the Bluetooth broadcast messages; C, all the all Bluetooth access points which receive the Bluetooth broadcast messages sent by the mobile sensor node report the RSSI to a monitoring center; and D, the monitoring center calculates the position information of the mobile sensor node according to the RSSI reported by the Bluetooth access points. The positioning method of the invention can significantly reduce power consumption.
Description
Technical field
The application relates to short-distance wireless communication technology, particularly relates to a kind of localization method of mobile sensor node.
Background technology
Along with the progress of the development of wireless communication technology, particularly digital communication technology, the cost performance of wireless product is more rational, so, utilize wireless technology to carry out monitoring, follow the tracks of, locate and become a reality.Radio tracking positioning equipment common in the market, normally based on technology such as global positioning system (GPS), global system for mobile communications (GSM), Wideband Code Division Multiple Access (WCDMA) (WCDMA).Wherein, GPS applies the most successful location technology at present, but locates for the radio tracking of zonule, and the precision of GPS is far not by far up to the mark.
Bluetooth technology is the radiotechnics of a kind of support equipment short haul connection (in general 10m), be operated in the 2.4GHz ISM(industry of global general-use, science, medical science) frequency range, adopt fast frequency hopping and short packet technology, support point-to-point and point-to-multipoint delivery, adopt time division duplex transmission scheme to realize full duplex transmission.The feature of Bluetooth technology can be summarized as following some:
Global range uses;
Can simultaneously transferring voice and data;
Provisional peer to peer connection can be set up;
There is good antijamming capability;
Bluetooth module volume is very little, can be integrated into easily in various equipment;
Low-power consumption;
Open interface standard.
Up to now, Bluetooth protocol released altogether six versions: Bluetooth V1.1/1.2/2.0/2.1/3.0/4.0.Up-to-date bluetooth 4.0 version, by three kinds of bluetooth core technology, comprises traditional bluetooth technology, blue teeth high speed technology and Bluetooth Low Energy (BLE, Bluetooth Low Energy) technology and integrates.Three kinds of technical specifications can be used alone, and also can run simultaneously.Wherein Low-power Technology can say it is the important breakthrough of bluetooth 4.0 version, possesses extremely low operation and stand-by power consumption, and bluetooth equipment uses a button cell even can continuous operation several years.Also have low cost simultaneously, across vendor interoperability, 3 milliseconds of low delays, more than 100 meters extra long distances, many characteristics such as AES-128 encryption, may be used for the various fields such as pedometer, heart rate monitor, intelligent instrument, transducer Internet of Things, have wide range of application.
The advantage of Bluetooth technology, for its in zonule radio tracking location practical application provide condition.Utilize the mobile sensor node of Bluetooth technology, possess skills advanced person, volume is little, low in energy consumption, the features such as cost is low, and, in monitor procedure, allow monitored object to move within the specific limits, therefore, utilize Bluetooth technology to relevant special occasions, personnel as regional occasions such as hospital, mine, workshop, prisons carry out real time location tracking, and when something unexpected happened, the position of personnel is positioned, to processing accident in time, take emergency measures, reduce its extent of injury and play very important effect.
Existing bluetooth navigation system is mainly based on traditional bluetooth technology.As the Chinese patent " Bluetooth radio tracking positioning system " that application number is 200520110589.7, disclosed technical scheme is: the monitored positional information from equipment needs by reporting corresponding main access point apparatus from equipment, main access point apparatus to carrying out track and localization from equipment and must set up wireless link with from equipment in its control range, thus will complete the collecting work from device location information.The defect of the program is:
1. need set up with main access point apparatus and keep being connected from equipment, power dissipation overhead is large;
2. can only keep being connected with a main access point apparatus at one time from equipment, cannot multipoint positioning be realized;
3. very likely can switch between multiple main access point apparatus at short notice from equipment in moving, causes connection establishment and disconnection frequently.
Application number be 200710078442.8 the disclosed technical scheme of Chinese patent " blue tooth underground radio positioning system " be: utilize the querying command of Bluetooth base. station to obtain the signal strength signal intensity of bluetooth mobile radio station, the mobile station information that inquiry obtains is reported monitoring host computer and is positioned bluetooth mobile radio station by monitoring host computer by Bluetooth base. station.The program only needs Bluetooth base. station to inquire about bluetooth mobile radio station, and do not need to connect with it, without the need to setting up frequently and disconnecting in equipment moving process, simultaneously, because a bluetooth mobile radio station can accept the inquiry of multiple Bluetooth base. station, monitoring host computer can position it by the bluetooth mobile station information that reports of comprehensive multiple Bluetooth base. station, thus realizes multipoint positioning, improves the precision of location.But also there is following two problems in the program:
1. utilize the querying command of Bluetooth base. station to mean that bluetooth mobile radio station needs to monitor inquiry scan channel to the signal strength signal intensity obtaining bluetooth mobile radio station, the power dissipation overhead of mobile radio station is large;
2. the querying command of bluetooth mobile radio station to each Bluetooth base. station listened to will respond, and when mobile radio station is positioned at the coverage of multiple Bluetooth base. station, the power consumption of mobile radio station will increase greatly.
Summary of the invention
This application provides a kind of localization method of mobile sensor node, significantly can reduce power consumption.
The localization method of a kind of mobile sensor node that the embodiment of the present application provides, comprising:
A, mobile sensor node periodically send Bluetooth broadcast message;
B, receive the Bluetooth broadcast message that mobile sensor node sends all Bluetooth accessing points by carrying out the signal strength signal intensity of Bluetooth broadcast message measuring the received signal strength indicator RSSI obtaining this mobile node;
C, all Bluetooth accessing points receiving the Bluetooth broadcast that this mobile sensor node sends all report the RSSI of this mobile node to Surveillance center;
D, Surveillance center calculate the positional information of described mobile sensor node according to the RSSI that each Bluetooth accessing point reports.
Preferably, described Bluetooth broadcast message is disconnected broadcast or connects broadcast.
Preferably, mobile sensor node is in disconnected state, and and when not having other business datums to need mutual between Bluetooth accessing point, described Bluetooth broadcast message is disconnected broadcast.
Preferably, mobile sensor node is in disconnected state, and and when having other business datums to need mutual between Bluetooth accessing point, described Bluetooth broadcast message is for connecting broadcast.
Preferably, mobile sensor node is in connected state, and described Bluetooth broadcast message is disconnected broadcast.
Preferably, the cycle that mobile sensor node sends Bluetooth broadcast message is determined according to the translational speed of mobile sensor node and the requirement of positioning precision, and translational speed is faster, and the higher then broadcast cycle of positioning precision is shorter, otherwise broadcast cycle is longer.
As can be seen from the above technical solutions, periodically broadcast is sent over the broadcast by mobile sensor node, Bluetooth accessing point scanning broadcast channel obtains the signal strength signal intensity of mobile sensor node and reports Surveillance center, and the mobile sensor node information that the comprehensive multiple Bluetooth accessing point of Surveillance center reports positions it.The application's scheme utilize low-power consumption Bluetooth technology to introduce from device broadcasts characteristic, broadcast is utilized to position mobile sensor node, mobile sensor node connects without the need to keeping bluetooth, Bluetooth accessing point also without the need to monitoring inquiry scan channel, thus reduces the power consumption of mobile sensor node and Bluetooth accessing point.
Accompanying drawing explanation
Fig. 1 is the network topology structure schematic diagram of Bluetooth communication system;
The localization method schematic flow sheet of the mobile sensor node that Fig. 2 provides for the embodiment of the present application.
Embodiment
Technical scheme is based on low-power consumption Bluetooth technology.Low-power consumption Bluetooth technology is usually based on master/slave mechanism, and namely a main equipment is connected from equipment with multiple.Equipment can be main equipment or from equipment, but it can not be main equipment and from equipment.Controlled by main equipment from the permission communication frequency of equipment, only when main equipment requires, just can communicate with it from equipment.In addition, new features of low-power consumption Bluetooth technology are exactly " broadcast " function from equipment.Can announce that it has information to send main equipment to by this approach from equipment.
The localization method of the mobile sensor node that the application provides, its design philosophy is: utilize low-power consumption Bluetooth technology to introduce from device broadcasts characteristic, periodically broadcast is sent over the broadcast by mobile sensor node, Bluetooth accessing point scanning broadcast channel obtains the signal strength signal intensity of mobile sensor node and reports Surveillance center, and the mobile sensor node information that the comprehensive multiple Bluetooth accessing point of Surveillance center reports positions it.
For making the know-why of technical scheme, feature and technique effect clearly, below in conjunction with specific embodiment, technical scheme is described in detail.
Low-power consumption Bluetooth technology is based upon on star topology, as shown in Figure 1, Surveillance center connects multiple main equipment (Bluetooth accessing point) by local area network (LAN), each main equipment has certain communication coverage, has one or more from equipment (mobile sensor node) in this communication range.For the network topology shown in Fig. 1, the localization method flow process of the mobile sensor node that the embodiment of the present application provides as shown in Figure 2, comprises the steps:
Step 201: mobile sensor node periodically sends Bluetooth broadcast message, this message both can be disconnected broadcast, also can be to connect broadcast, and Specific Principles is as follows:
When mobile sensor node is in disconnected state, and and when not having other business datums to need mutual between Bluetooth accessing point, send disconnected broadcast;
When mobile sensor node is in disconnected state, and and when having other business datums to need mutual between Bluetooth accessing point, send and connect broadcast;
When mobile sensor node is in connected state, send disconnected broadcast.
The cycle of broadcast can be determined according to the requirement of the translational speed of mobile sensor node and positioning precision; The translational speed being mobile sensor node is in principle faster, the higher then broadcast cycle of positioning precision is shorter, fairly simple method arranges various threshold speed under being arranged on different positioning precisioies, velocity interval according to mobile node movement determines broadcast cycle, certainly can design more complicated computing formula, the application is not specifically limited this.
Step 202 receives all Bluetooth accessing points of the Bluetooth broadcast message that mobile sensor node sends by carrying out the signal strength signal intensity of Bluetooth broadcast message measuring the received signal strength indicator (RSSI, Received Signal Strength Indication) obtaining this mobile node.
Step 203: all Bluetooth accessing points receiving the Bluetooth broadcast that this mobile sensor node sends all report the RSSI of this mobile node to Surveillance center.
Step 204: Surveillance center calculates the positional information of mobile sensor node according to the RSSI that each Bluetooth accessing point reports.
The application to calculate that the positional information of mobile sensor node adopts specific algorithm be not construed as limiting, as long as the location algorithm that can position based on RSSI intensity in prior art can be applied in the application's scheme.
The beneficial effect of technical scheme mainly comprises:
Periodically send broadcast by mobile sensor node, Bluetooth accessing point scanning broadcast channel obtains the signal strength signal intensity of mobile sensor node, reduces the power consumption of mobile node.Because signal strength signal intensity is obtained by the broadcast singal measurement of Bluetooth accessing point to mobile sensor node, therefore mobile node only needs transmission broadcast that multiple access point just can be made to obtain its signal strength signal intensity, reduce further the power consumption of mobile node.
The foregoing is only the preferred embodiment of the application; not in order to limit the protection range of the application; within all spirit in technical scheme and principle, any amendment made, equivalent replacements, improvement etc., all should be included within scope that the application protects.
Claims (6)
1. a localization method for mobile sensor node, is characterized in that, comprising:
A, mobile sensor node periodically send Bluetooth broadcast message;
B, receive the Bluetooth broadcast message that mobile sensor node sends all Bluetooth accessing points by carrying out the signal strength signal intensity of Bluetooth broadcast message measuring the received signal strength indicator RSSI obtaining this mobile node;
C, all Bluetooth accessing points receiving the Bluetooth broadcast that this mobile sensor node sends all report the RSSI of this mobile node to Surveillance center;
D, Surveillance center calculate the positional information of described mobile sensor node according to the RSSI that each Bluetooth accessing point reports.
2. localization method according to claim 1, is characterized in that, described Bluetooth broadcast message is disconnected broadcast or connects broadcast.
3. localization method according to claim 2, is characterized in that, mobile sensor node is in disconnected state, and and when not having other business datums to need mutual between Bluetooth accessing point, described Bluetooth broadcast message is disconnected broadcast.
4. localization method according to claim 2, is characterized in that, mobile sensor node is in disconnected state, and and when having other business datums to need mutual between Bluetooth accessing point, described Bluetooth broadcast message is for connecting broadcast.
5. localization method according to claim 2, is characterized in that, mobile sensor node is in connected state, and described Bluetooth broadcast message is disconnected broadcast.
6. localization method according to claim 1, it is characterized in that, the cycle that mobile sensor node sends Bluetooth broadcast message is determined according to the translational speed of mobile sensor node and the requirement of positioning precision, translational speed is faster, the higher then broadcast cycle of positioning precision is shorter, otherwise broadcast cycle is longer.
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Cited By (13)
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|---|---|---|---|---|
| CN105738861A (en) * | 2016-02-02 | 2016-07-06 | 江伟坚 | High-precision indoor positioning system for passive gait monitoring based on smart shoes |
| WO2017012541A1 (en) * | 2015-07-21 | 2017-01-26 | 杭州华三通信技术有限公司 | Terminal positioning |
| CN106918338A (en) * | 2017-04-07 | 2017-07-04 | 重庆智石网络科技有限公司 | Indoor locating system and method based on Bluetooth gateway |
| CN107087252A (en) * | 2017-05-25 | 2017-08-22 | 铂元智能科技(北京)有限公司 | A kind of method that Bluetooth broadcast carries out data transmission |
| CN107613465A (en) * | 2017-09-05 | 2018-01-19 | 武汉慧联无限科技有限公司 | Goods and materials alignment system |
| CN107850658A (en) * | 2015-08-06 | 2018-03-27 | 高通股份有限公司 | Enhanced Passive Positioning with adaptive positive location |
| CN108305355A (en) * | 2017-11-01 | 2018-07-20 | 日立楼宇技术（广州）有限公司 | Elevator triangular key, overhauling elevator positioning system, state validation method and device |
| CN109254262A (en) * | 2018-09-03 | 2019-01-22 | 深圳小淼科技有限公司 | A kind of localization method and system of intelligent mine lamp |
| CN109996371A (en) * | 2019-04-24 | 2019-07-09 | 深圳尚一互联技术有限公司 | The method of gesture control light for Intelligent bracelet |
| CN110324786A (en) * | 2019-06-04 | 2019-10-11 | 苏州经贸职业技术学院 | A kind of IPv6 access type running fix Internet of Things acquisition system |
| CN110611876A (en) * | 2018-06-15 | 2019-12-24 | 深圳市微能信息科技有限公司 | Indoor asset management method, device and system |
| CN111385774A (en) * | 2018-12-12 | 2020-07-07 | 北京骑胜科技有限公司 | Bluetooth device connection method, connection device, terminal and computer device |
| CN112867141A (en) * | 2019-11-28 | 2021-05-28 | 中移雄安信息通信科技有限公司 | Positioning control method, Bluetooth service node and electronic equipment |
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| CN107850658A (en) * | 2015-08-06 | 2018-03-27 | 高通股份有限公司 | Enhanced Passive Positioning with adaptive positive location |
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| CN105738861A (en) * | 2016-02-02 | 2016-07-06 | 江伟坚 | High-precision indoor positioning system for passive gait monitoring based on smart shoes |
| CN106918338A (en) * | 2017-04-07 | 2017-07-04 | 重庆智石网络科技有限公司 | Indoor locating system and method based on Bluetooth gateway |
| CN107087252A (en) * | 2017-05-25 | 2017-08-22 | 铂元智能科技(北京)有限公司 | A kind of method that Bluetooth broadcast carries out data transmission |
| CN107613465B (en) * | 2017-09-05 | 2019-11-05 | 重庆慧联无限科技有限公司 | Goods and materials positioning system |
| CN107613465A (en) * | 2017-09-05 | 2018-01-19 | 武汉慧联无限科技有限公司 | Goods and materials alignment system |
| CN108305355A (en) * | 2017-11-01 | 2018-07-20 | 日立楼宇技术（广州）有限公司 | Elevator triangular key, overhauling elevator positioning system, state validation method and device |
| CN110611876A (en) * | 2018-06-15 | 2019-12-24 | 深圳市微能信息科技有限公司 | Indoor asset management method, device and system |
| CN110611876B (en) * | 2018-06-15 | 2021-05-18 | 深圳市微能信息科技有限公司 | Indoor asset management method, device and system |
| CN109254262A (en) * | 2018-09-03 | 2019-01-22 | 深圳小淼科技有限公司 | A kind of localization method and system of intelligent mine lamp |
| CN111385774A (en) * | 2018-12-12 | 2020-07-07 | 北京骑胜科技有限公司 | Bluetooth device connection method, connection device, terminal and computer device |
| CN109996371A (en) * | 2019-04-24 | 2019-07-09 | 深圳尚一互联技术有限公司 | The method of gesture control light for Intelligent bracelet |
| CN110324786A (en) * | 2019-06-04 | 2019-10-11 | 苏州经贸职业技术学院 | A kind of IPv6 access type running fix Internet of Things acquisition system |
| CN110324786B (en) * | 2019-06-04 | 2020-12-29 | 苏州经贸职业技术学院 | IPv6 access type mobile positioning Internet of things acquisition system |
| CN112867141A (en) * | 2019-11-28 | 2021-05-28 | 中移雄安信息通信科技有限公司 | Positioning control method, Bluetooth service node and electronic equipment |
| CN112867141B (en) * | 2019-11-28 | 2023-07-11 | 中移雄安信息通信科技有限公司 | Positioning control method, bluetooth service node and electronic equipment |
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Application publication date: 20150211 |