CN105491512A - Mobile phone indoor positioning method based on Bluetooth - Google Patents
Mobile phone indoor positioning method based on Bluetooth Download PDFInfo
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- CN105491512A CN105491512A CN201610030331.9A CN201610030331A CN105491512A CN 105491512 A CN105491512 A CN 105491512A CN 201610030331 A CN201610030331 A CN 201610030331A CN 105491512 A CN105491512 A CN 105491512A
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- mobile phone
- bluetooth
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/021—Services related to particular areas, e.g. point of interest [POI] services, venue services or geofences
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/025—Services making use of location information using location based information parameters
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention relates to a mobile phone indoor positioning method based on Bluetooth. The mobile phone indoor positioning method comprises the following steps of partitioning a whole positioning area, wherein each subarea corresponds with a subarea ID; placing a Bluetooth beacon node at the center of each subarea, adjusting the maximal transmission power of the Bluetooth beacon node and making the Bluetooth beacon node periodically transmit a beacon signal; utilizing the subarea with the Bluetooth beacon node which corresponds with the beacon signal with highest signal strength as the area in which a to-be-positioned mobile phone is located by the to-be-positioned mobile phone through receiving the beacon signal; and introducing the following two mechanisms for further improving positioning precision, namely estimating an approximate distance between the to-be-positioned mobile phone and the corresponding Bluetooth beacon node through the strength of the beacon signal that is received by the mobile phone; and determining the direction of the to-be-positioned mobile phone in the corresponding subarea according to the beacon signals of other subareas, wherein the beacon signals are received by the to-be-positioned mobile phone. The mobile phone indoor positioning method simplifies a positioning mechanism and furthermore has a technological advantage of simple operation.
Description
Technical field
The present invention relates to a kind of mobile phone indoor orientation method based on bluetooth.
Background technology
Along with the fast development in city, the buildings such as Large Underground parking lot, shopping center continue to bring out.In above-mentioned indoor environment, people wish the position can determining oneself place fast, and the destination finding oneself to think.The global position system such as GPS and the Big Dipper is location technology most widely used at present, has the technical advantages such as precision is high, wide coverage, user's access amount are large.But its cost and power consumption are all higher, cannot be applicable to the wireless location application of low cost, low-power consumption requirement, moreover satellite-signal cannot penetrate barrier, therefore, global position system cannot be applicable in the indoor positioning application closed.
In order to solve indoor orientation problem, there has been proposed many indoor positioning technologies based on various wireless technology, comprising WiFi, infrared, ultra broadband, Zigbee and bluetooth etc.These location mechanisms roughly can be divided into two classes: based on the location mechanism of range finding and the location mechanism based on radio-frequency fingerprint.But because the complexity of indoor environment is various, mostly there is the not high and location problem such as high cost of precision in existing wireless location system.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of mobile phone indoor orientation method based on bluetooth, simplify location mechanism, there is simple technical advantage.
For achieving the above object, the present invention adopts following technical scheme: a kind of mobile phone indoor orientation method based on bluetooth, is characterized in that comprising the following steps:
Step S1: subregion is carried out to whole locating area, the corresponding partition id of each subregion;
Step S2: place a Bluetooth beacon node in each regional center (RC), the maximum transmission power of adjustment Bluetooth beacon node, to guarantee that the signal strength signal intensity of this Bluetooth beacon node in this subregion is not less than the signal strength signal intensity in this subregion of the Bluetooth beacon node of other subregions, controls described Bluetooth beacon node periodic transmission beacon signal;
Step S3: mobile phone to be positioned by receiving beacon signal, and using the subregion at Bluetooth beacon node place corresponding to the beacon signal that signal is the strongest as the region at mobile phone place to be positioned; On this basis, introduce following two mechanism and improve positioning precision further: (1) estimates the approximate distance of mobile phone to be positioned to corresponding Bluetooth beacon node by the beacon signal intensity that mobile phone receives; (2) beacon signal of other subregions received in conjunction with mobile phone to be positioned, judges the orientation of mobile phone to be positioned in corresponding subregion.
Further, the recursive algorithm of quaternary tree is adopted to carry out subregion to whole locating area in described step S1.
Further, described beacon signal carries two information, that is: partition id and signal strength scale.
Further, judge in described step S3 that the concrete grammar in the orientation of locating cellphone in corresponding subregion is: get mobile phone to be positioned and receive two the strongest Bluetooth beacon nodes of signal as reference, then described mobile phone to be positioned is positioned on the connecting line of two Bluetooth beacon nodes.
The present invention compared with prior art has following beneficial effect: the present invention adopts the deployment of Bluetooth beacon node to simplify location mechanism; there is simple technical advantage; and bluetooth itself has the advantage of low cost, low-power consumption, low delay; existing smart mobile phone is embedded with bluetooth function mostly, is easy to large-scale promotion.
Accompanying drawing explanation
Fig. 1 is flow chart of steps of the present invention.
Fig. 2 is locating area subregion schematic diagram of the present invention.
Fig. 3 is partition id schematic diagram of the present invention.
Fig. 4 is beacon signal intensity of the present invention adjustment schematic diagram.
Fig. 5 is that precision of the present invention improves principle schematic.
Embodiment
Below in conjunction with drawings and Examples, the present invention will be further described.
Please refer to Fig. 1, the present embodiment provides a kind of mobile phone indoor orientation method based on bluetooth, it is characterized in that comprising the following steps:
Step S1: the subregion of locating area:
According to the demand of practical application scene, adopt the recursive algorithm of quaternary tree to carry out subregion to whole locating area, the reddest subregion will as positioning units, and therefore, each subregion is unique correspondence partition id all, and the false code of partitioning algorithm is as follows:
Be illustrated in figure 2 locating area subregion schematic diagram of the present invention, as the embodiment explanation of partitioning algorithm.Suppose that this whole locating area is for certain market, first market is divided into 4 larger regions: area book, clothes district, digital district and household district; According to demand, further clothes zoning can be divided into men's clothing district, women's dress district, underwear district and accessories district, final whole locating area forms a quad-tree structure figure, the division result of each subregion and subregion are illustrated incorporated by reference to Fig. 2 and Fig. 3, as: the partition id of area book is ID1, the partition id in men's clothing district is ID2, the partition id in women's dress district is ID3, the partition id in underwear district is ID4, the partition id in accessories district is ID5 etc.
Step S2: the installation of Bluetooth beacon node and setting:
First, a Bluetooth beacon node is placed in each regional center (RC).Then, adjust the maximum transmission power of each Bluetooth beacon node to guarantee that the signal strength signal intensity of this Bluetooth beacon node in this subregion is not less than the signal strength signal intensity in this subregion of the Bluetooth beacon node of other subregions, such as: in area book, mobile phone to be positioned receives the signal strength signal intensity of Bluetooth beacon node of placing at center, area book and is greater than and equals the signal strength signal intensity that mobile phone to be positioned receives the Bluetooth beacon node that other regional center (RC)s are placed.On this basis, described Bluetooth beacon node periodic transmission beacon signal is controlled.The method to set up of beacon strengths is as shown in Figure 4: signal strength signal intensity is a high grade often, and its covering radius just roughly increases by 3 meters.Level of signal quantity in each subregion then determined by the size of this subregion, and guarantee that the signal of greatest level must cover whole subregion, such as, the length of side is the subregion of 8 meters, then need the signal of transmission two grades, each beacon signal must carry two information: partition id and signal strength scale.
Step S3: mobile phone is located:
First, the partitioned organization information of preset whole location subregion in mobile phone, mobile phone to be positioned is by receiving beacon signal, and using the subregion at Bluetooth beacon node place corresponding to the beacon signal that signal is the strongest as the region at mobile phone place to be positioned, as shown in Figure 5, the subregion at the Bluetooth beacon node place that the beacon signal that the signal that mobile phone to be positioned receives is the strongest is corresponding is region 3, then mobile phone to be positioned is navigated to region 3, on this basis, introduce following two mechanism and improve positioning precision further: (1) estimates the approximate distance of mobile phone to be positioned to corresponding Bluetooth beacon node by the beacon signal intensity that mobile phone receives, as shown in Figure 5, Bluetooth beacon node in subregion periodically sends the signal of varying strength, suppose that mobile phone to be positioned can receive the signal that intensity is class 4, and do not receive the signal of grade 3, illustrate mobile phone to be positioned be in grade 3 and class 4 two enclose so-called become region in, by this method, the distance roughly can determining center, territory 3, mobile phone abscission zone to be positioned is between 9-12 rice, (2) beacon signal of other subregions received in conjunction with mobile phone to be positioned, judge the orientation of mobile phone to be positioned in corresponding subregion, specific as follows, continue referring to Fig. 5: mobile phone to be positioned receives Bluetooth beacon node corresponding to the strongest beacon signal of signal and is respectively beacon 2 and beacon 3, then can roughly determine, mobile phone to be positioned is in the direction of the straight line a be made up of beacon 2 and beacon 3 line, the distance of the beacon 3 at the center, territory 3, mobile phone abscission zone to be positioned determined in conjunction with (1) is between 9-12 rice, can determine in that block zonule at mobile phone to be positioned shade place in Figure 5, substantially increase positioning precision.
The foregoing is only preferred embodiment of the present invention, all equalizations done according to the present patent application the scope of the claims change and modify, and all should belong to covering scope of the present invention.
Claims (4)
1., based on a mobile phone indoor orientation method for bluetooth, it is characterized in that comprising the following steps:
Step S1: subregion is carried out to whole locating area, the corresponding partition id of each subregion;
Step S2: place a Bluetooth beacon node in each regional center (RC), the maximum transmission power of adjustment Bluetooth beacon node, to guarantee that the signal strength signal intensity of this Bluetooth beacon node in this subregion is not less than the signal strength signal intensity in this subregion of the Bluetooth beacon node of other subregions, controls described Bluetooth beacon node periodic transmission beacon signal;
Step S3: mobile phone to be positioned by receiving beacon signal, and using the subregion at Bluetooth beacon node place corresponding to the beacon signal that signal is the strongest as the region at mobile phone place to be positioned; On this basis, introduce following two mechanism and improve positioning precision further: (1) estimates the approximate distance of mobile phone to be positioned to corresponding Bluetooth beacon node by the beacon signal intensity that mobile phone receives; (2) beacon signal of other subregions received in conjunction with mobile phone to be positioned, judges the orientation of mobile phone to be positioned in corresponding subregion.
2. the mobile phone indoor orientation method based on bluetooth according to claim 1, is characterized in that: adopt the recursive algorithm of quaternary tree to carry out subregion to whole locating area in described step S1.
3. the mobile phone indoor orientation method based on bluetooth according to claim 1, is characterized in that: described beacon signal carries two information, that is: partition id and signal strength scale.
4. the mobile phone indoor orientation method based on bluetooth according to claim 1, it is characterized in that: in described step S3, judge that the concrete grammar in the orientation of locating cellphone in corresponding subregion is: get mobile phone to be positioned and receive two the strongest Bluetooth beacon nodes of signal as reference, then described mobile phone to be positioned is positioned on the connecting line of two Bluetooth beacon nodes.
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| CN201610030331.9A CN105491512A (en) | 2016-01-18 | 2016-01-18 | Mobile phone indoor positioning method based on Bluetooth |
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| CN201610030331.9A CN105491512A (en) | 2016-01-18 | 2016-01-18 | Mobile phone indoor positioning method based on Bluetooth |
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| CN106792455A (en) * | 2016-12-12 | 2017-05-31 | 莫燕秀 | A kind of indoor navigation system |
| CN106851571A (en) * | 2017-01-20 | 2017-06-13 | 华南理工大学 | WiFi localization methods in a kind of quick KNN rooms based on decision tree |
| CN107018479A (en) * | 2017-04-13 | 2017-08-04 | 宁波欧琳厨具有限公司 | A kind of accessory system for practising cooking |
| CN107576938A (en) * | 2016-07-04 | 2018-01-12 | 广达电脑股份有限公司 | Indoor positioning system and method thereof |
| CN108279397A (en) * | 2017-12-05 | 2018-07-13 | 中集冷云（北京）冷链科技有限公司 | Storage box position identifying method, system, computer equipment and storage medium |
| CN108387231A (en) * | 2017-12-19 | 2018-08-10 | 广州华途信息科技有限公司 | Indoor blind guiding system based on Bluetooth technology and method |
| CN113965878A (en) * | 2021-09-17 | 2022-01-21 | 中通服网盈科技有限公司 | Multipoint indoor positioning system of Bluetooth beacon |
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Application publication date: 20160413 |
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