CN104683947A - Acoustic wave-based indoor positioning method and business information pushing method - Google Patents
Acoustic wave-based indoor positioning method and business information pushing method Download PDFInfo
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- CN104683947A CN104683947A CN201410790341.3A CN201410790341A CN104683947A CN 104683947 A CN104683947 A CN 104683947A CN 201410790341 A CN201410790341 A CN 201410790341A CN 104683947 A CN104683947 A CN 104683947A
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Abstract
The invention discloses an acoustic wave-based indoor positioning method and a business information pushing method and belongs to a positioning technology and the technical field of big data. The acoustic wave-based indoor positioning method comprises the following steps that step 1, an acoustic wave generating device is arranged on an AP, and the position information of the AP is encoded, is modulated on acoustic wave frequency and is transmitted to the surrounding; step 2, a mobile phone installed with APP (application) software parses the related position information through received acoustic wave given by the AP; step 3, the position information of the mobile phone is uploaded to a service center, and the geographical position of the mobile phone is determined through the service center. The invention also comprises the business information pushing method which is realized by the positioning method. The business information pushing method comprises the following step that step 4, the service center transmits merchant information to the mobile phone of which the position is determined in an acoustic wave way, so that the aim of pushing the business information is fulfilled. Indoor positioning for the mobile phone can be effectively performed by the technical scheme, and the aim of pushing the business information to the positioned mobile phone is fulfilled.
Description
Technical field
The present invention relates to location technology and large data technique field, particularly relate to a kind of based on the indoor orientation method of sound wave and the method for pushing of business information.
Background technology
Location Based service (LBS) becomes mobile Internet new breakthrough point in recent years, and the actual position obtaining user becomes the key of position-based service.But present location Based service great majority are all the positions based on outdoor, and the location technology of some indoor, such as wifi, bluetooth positioning precision is not high yet, can not meet the needs that actual position is known.It is 201210550333.2 that China national Department of Intellectual Property discloses application number, invention and created name for " a kind of localization method of the RSSI value based on WiFi signal " and application number be 201210306880.6, invention and created name is " a kind of based on Bluetooth technology realize location method and system " two kinds of indoor orientation methods, these two kinds of localization methods are respectively based on WiFi and bluetooth, and these indoor positioning technologies are as wifi, the general frequency such as bluetooth is all at more than 2GHz, this frequency range due to frequency higher, decay very large, be subject to as wall, furniture, the stops such as human body, signal strength signal intensity meeting sharp-decay, according to the position meeting serious distortion that signal strength signal intensity calculates, so locating effect is not fine.
Meanwhile, carry out data processing and analysis based on large data, then carrying out directed distribution is targetedly a reciprocal selection.
Summary of the invention
In order to solve the problems of the technologies described above, the object of this invention is to provide a kind of based on the indoor orientation method of sound wave and the method for pushing of business information, the method for pushing of this localization method and business information has accurate positioning and business information pushes the features such as accurate.
The object of the invention is to be achieved through the following technical solutions:
Based on an indoor orientation method for sound wave, comprise the steps:
S1, AP arranges sound wave generating device, the positional information of AP is encoded, and is modulated in sound wave frequency, launches to surrounding;
S2, the sound wave that the mobile phone having installed APP software is sent by the AP received, parses relevant location information;
S3, uploads to service centre by mobile phone position information, is determined the geographical position of mobile phone by service centre.
The present invention also comprises a kind of according to the above-mentioned indoor orientation method based on sound wave and then the method for pushing realizing business information, and it comprises the steps:
S4, service centre to being determined that by sound wave mode the mobile phone of position transmits merchant information, and then realizes the propelling movement object of business information.
S5, the characteristic information of merchant information is checked by record and the positional information of memory mobile phone and cellphone subscriber by service centre, by the treatment and analysis mode of large data, judges the feature of cellphone subscriber, and then pushes business information accurately for cellphone subscriber.
By the technical scheme of the invention described above, of the present invention to have location based on the indoor orientation method of sound wave and the method for pushing of business information precisely convenient, and can push merchant information accurately by the directed mobile phone to location.
Accompanying drawing explanation
Fig. 1 is the method for pushing fundamental diagram of the indoor orientation method based on sound wave of the present invention and business information;
Fig. 2 is the algorithm schematic diagram of the indoor orientation method containing three AP;
Fig. 3 is the FB(flow block) of a kind of execution mode of the indoor orientation method based on sound wave of the present invention;
Fig. 4 is the FB(flow block) of a kind of execution mode of the method for pushing of business information of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail:
As shown in Figure 1, Figure 2 and Figure 3, a kind of indoor orientation method based on sound wave, positioned being positioned at indoor mobile phone by the mode of sound wave, it comprises the steps:
S1, AP gateway arranges sound wave generating device, the positional information of AP is encoded, and is modulated in sound wave frequency, launches to surrounding;
S2, the sound wave that the mobile phone having installed APP software is sent by the AP received, and the sound wave received is processed, parse relevant location information;
S3, uploads to service centre by mobile phone position information, is determined the geographical position of mobile phone by service centre.
In order to determine the position of mobile phone more accurately, the mode of multiple AP can be selected to position, and the method for single AP as above.The locate mode of multiple AP needs to calculate the distance of each AP to mobile phone, and adds the program of computing mobile phone location.Concrete, described AP comprises 3 or more than 3, by calculating each AP to the distance of mobile phone and three-point fix algorithm determination mobile phone allocation really.
The present invention also comprises a kind of according to the above-mentioned indoor orientation method based on sound wave and then the method for pushing realizing business information, and it comprises the steps:
S4, service centre to being determined that by sound wave mode the mobile phone of position transmits merchant information, and then realizes the propelling movement object of business information.
Further, the method for pushing of described business information also comprises the steps:
S5, the characteristic information of merchant information is checked by record and the positional information of memory mobile phone and cellphone subscriber by service centre, by the treatment and analysis mode of large data, judges the feature of cellphone subscriber, and then pushes business information accurately for cellphone subscriber.Wherein, described characteristic information comprises cellphone subscriber and checks time period of merchant information, time span, visiting number of times, the information of visiting time and the time of staying etc.
Technical scheme of the present invention utilizes the technology of sound wave, by the sound-producing device of a subordinate on AP gateway, the positional information of AP is encoded, is modulated in sound wave frequency, launches to surrounding.Simultaneously, by the sound wave that the AP received sends, the mobile phone having installed the software of mobile phone A PP just can know that AP is near mobile phone, positional information is reported to service centre, and service centre just can know that mobile phone is near AP, just can know the general geographical position of mobile phone simultaneously.If near have the AP of 3 or more, so then just can know mobile phone allocation really by calculating each AP to the distance of mobile phone and three-point fix algorithm.
This technology can be applied in indoor navigation, can also transmit some simple merchant informations to cellphone subscriber simultaneously, have the guide effect of certain shopping by service centre.Simultaneously, service centre is by the position of record mobile phone, the time of checking merchant information and time span, visiting number of times, visiting time, the time of staying and other relevant informations, just can be inferred the hobby, personality etc. of user by the mode of large data, thus user profile more accurately can be known.
The present invention is based on acoustic communication technology, carry out information interaction with the AP being provided with sound wave sending and receiving device, thus AP can be allowed to learn mobile phone just near AP, thus obtain the Position Approximate of mobile phone.If near have the AP of 3 or more, so then just can know mobile phone allocation really by calculating each AP to the distance of mobile phone and three-point fix algorithm.Because the frequency range of sound wave is lower, decay very little, so the position of calculating can be relatively accurate.
As shown in Figure 1, the method for pushing of concrete location and merchandise news is as follows for the operation principle of technical solution of the present invention:
1, the positional information of oneself is carried out error correction coding by AP, the information after coding is modulated through but not limited to digital modulation modes such as FSK, ASK, PSK.
2, after having modulated, modulation signal is done digital-to-analogue conversion, the analog signal converted is amplified rear drive loud speaker after filtering and is sent sound wave.
3, AP constantly repeats the content in 1 and 2, the positional information of oneself is constantly broadcasted.
4, at receiving terminal, mobile phone A PP can constantly gather acoustic signals by own microphone and convert PCM digital signal to, is being sent in demodulation module after filtering afterwards.
5, demodulation module can the modulation demodulation system that defines of basis and AP, as but be not limited to the digital modulation modes such as FSK, ASK, PSK, carry out corresponding digital demodulation.After demodulation completes, data can be sent in decoder module.
6, decoder module can the code encoding/decoding mode that defines of basis and AP, and the digital signal complete to demodulation is decoded, and solves the positional information of AP broadcast.
7, after mobile phone parses the positional information of AP, relevant information is uploaded to service centre by wireless network, the positional information of mobile phone just can be known by such service centre.
8, after service centre knows that mobile phone is near certain AP, just can send some message such as merchant information, advertisement, thus complete the function of shopping guiding.
9, after the connection completed with mobile phone as AP, AP can send specific signal by sound wave, and mobile phone receives this specific signal and calculates the intensity of the signal received.
10, mobile phone is by removing by the signal strength signal intensity received the form looking into a signal strength signal intensity and distance, thus knows the distance of AP to mobile phone.
11, range information can be reported service centre by wireless network by mobile phone
If have 3 or above AP near 12 mobile phones, so other AP can repeat the step of 9-11, thus service centre can know that mobile phone arrives the distance of multiple AP.
13, by 3 or more AP to the distance of mobile phone, through three-point fix algorithm, just can calculate mobile phone allocation really, and report service centre.
14, service centre is by the position of record mobile phone, the time of checking merchant information and time span, visiting number of times, visiting time, the time of staying and other relevant informations, the hobby, personality etc. of user just can be inferred by the mode of large data, thus user profile more accurately can be known, and carry out information promotion more accurately.
The present invention takes full advantage of acoustic receiver unit intrinsic on all mobile phones, i.e. microphone, mobile phone does not need increase the basic fixed position that namely extra hardware can realize for mobile phone, simple to operate.
Specific embodiment is as follows:
AP by the positional information of oneself through RS error correction coding, then by coding after information carry out FSK digital modulation.In order to avoid allowing people's ear hear unjoyful noise, also to be beneficial to the reception of mobile microphone, so the digital signal modulated He Ne laser that AP sends is 22kHz and 20kHz.' 1 ' signal can be represented with the sine wave of 20kHz, represent ' 0 ' signal with the sine wave of 22kHz.The signal modulated is after digital-to-analogue conversion, and amplifying circuit is gone out eventually through speaker announcement after filtering.
Information, by after microphones to the broadcast message of AP, is carried out FSK demodulation by mobile phone A PP.After demodulation completes, carry out the decoding of RS code, thus solve the positional information of AP transmission.
The positional information of mobile phone and other information relevant can be sent to service centre by AP, and positional information and other relevant informations of mobile phone just can be known by service centre.
After mobile phone and AP complete reciprocal process, on can thinking that mobile phone and AP have been connected.AP can send " 1010 " sequence, and mobile phone receives this specific signal and calculates the signal strength signal intensity received.
Mobile phone by removing by the signal strength signal intensity received the form looking into a signal strength signal intensity and distance, thus knows the distance of AP to mobile phone.In laboratory measurement with calculate before the form of this signal strength signal intensity and distance, be stored in mobile phone.Because the frequency range of sound wave is lower, decay very little, so the signal strength signal intensity that mobile phone obtains can be relatively more accurate, thus the distance calculated is also more accurate.
If there is the AP of 3 or more near mobile phone, by above mode, the distance of multiple AP to mobile phone just can be known.By three-point fix algorithm, mobile phone allocation really just can be calculated.As shown in Figure 2, three-point fix algorithm is as follows:
By knowing that three AP are to the distance of mobile phone, are respectively R1, R2 and R3 above, and the coordinate of AP1, AP2 and AP3, be assumed to be (x1, y1), (x2, y2), (x3, y3).
Then
x11＝2*(x1-x3)；
x12＝2*(y1-y3)；
x21＝2*(x2-x3)；
x22＝2*(y2-y3)；
diff＝(x11*x22-x12*x21)；
aa＝[x22/diff -x12/diff
-x21/diff x11/diff]；
bb＝[x1＾2-x3＾2+y1＾2-y3＾2+R3＾2-R1＾2
x2＾2-x3＾2+y2＾2-y3＾2+R3＾2-R2＾2]；
cc＝(aa*bb)；
Cc is exactly the coordinate of the mobile phone calculated.The coordinate information of mobile phone can be reported service centre by AP.
Service centre can record by AP other relevant informations of cellphone subscriber that the positional information of mobile phone, the time of checking merchant information and time span, visiting time, visiting number of times, the time of staying and APP read, just can be inferred the hobby, personality, income level, education level etc. of user by the mode of large data, thus user profile more accurately can be known.By phone user information accurately and then carry out information promotion more accurately and other data separate behaviors.
The above; be only the present invention's preferably embodiment, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claims.
Claims (5)
1. based on an indoor orientation method for sound wave, it is characterized in that, comprise the steps:
S1, AP arranges sound wave generating device, the positional information of AP is encoded, and is modulated in sound wave frequency, launches to surrounding;
S2, the sound wave that the mobile phone having installed APP software is sent by the AP received, parses relevant positional information;
S3, uploads to service centre by mobile phone position information, is determined the geographical position of mobile phone by service centre.
2. the indoor orientation method based on sound wave according to claim 1, is characterized in that, described AP comprises 3 or more than 3, by calculating each AP to the distance of mobile phone and three-point fix algorithm determination mobile phone allocation really.
3. the indoor orientation method based on sound wave according to claim 1 and 2 and then realize the method for pushing of business information, is characterized in that, comprise the steps:
S4, service centre to being determined that by sound wave mode the mobile phone of position transmits merchant information, and then realizes the propelling movement object of business information.
4. the method for pushing of business information according to claim 3, is characterized in that, also comprises the steps:
S5, the characteristic information of merchant information is checked by record and the positional information of memory mobile phone and cellphone subscriber by service centre, by the treatment and analysis mode of large data, judges the feature of cellphone subscriber, and then pushes business information accurately for cellphone subscriber.
5. the method for pushing of business information according to claim 4, is characterized in that, described characteristic information comprises the information that cellphone subscriber checks time period of merchant information, time span, visiting number of times, visiting time and the time of staying.
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| CN106921728A (en) * | 2016-08-31 | 2017-07-04 | 阿里巴巴集团控股有限公司 | A kind of method for positioning user, information-pushing method and relevant device |
| CN109191187A (en) * | 2018-08-17 | 2019-01-11 | 浙江口碑网络技术有限公司 | The acquisition methods and device of shop pushed information |
| CN110363689A (en) * | 2019-05-29 | 2019-10-22 | 广东精标科技股份有限公司 | College student profession mixing system |
| CN111752622A (en) * | 2019-03-29 | 2020-10-09 | 苏州触达信息技术有限公司 | Ultrasonic-based microphone wake-up system, method and device and computer-readable storage medium |
| CN112188616A (en) * | 2020-10-13 | 2021-01-05 | 江西三鑫医疗科技股份有限公司 | Indoor positioning method based on acoustic perception |
| CN113589231A (en) * | 2021-07-09 | 2021-11-02 | 南京航空航天大学 | Multi-mobile-phone positioning method based on sound waves |
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