CN105719166A - Shopping guide method based on Zigbee communication and visible light communication and system achieving method - Google Patents
Shopping guide method based on Zigbee communication and visible light communication and system achieving method Download PDFInfo
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- CN105719166A CN105719166A CN201610184456.7A CN201610184456A CN105719166A CN 105719166 A CN105719166 A CN 105719166A CN 201610184456 A CN201610184456 A CN 201610184456A CN 105719166 A CN105719166 A CN 105719166A
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- G06Q30/00—Commerce
- G06Q30/02—Marketing; Price estimation or determination; Fundraising
- G06Q30/0281—Customer communication at a business location, e.g. providing product or service information, consulting
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Abstract
The invention discloses a shopping guide method based on Zigbee communication and visible light communication.The method includes the following steps that 1, a control center transmits LED light control information to a Zigbee module; 2, the Zigbee module pushes service information to a corresponding LED modulation drive module through a Zigbee terminal, and LEDs are driven to emit light signals; 3, sub-system induction light intensity changes are received, corresponding electric signals are generated, and original signals are restored after demodulation of a demodulation module.The invention further discloses a system for achieving the shopping guide method based on Zigbee communication and visible light communication.The system comprises an emitting sub-system, a transmitting sub-system and a receiving sub-system.The emitting sub-system is provided with the control center, the Zigbee module, the Zigbee terminal, an LED drive circuit and an LED lamp.The method and the system have the advantages of wirelessly updating information in real time, achieving broad application prospects and the like.
Description
Technical field
The present invention relates to visible light communication technology, particularly to based on the shopping guide method of Zigbee communication and visible light communication and system thereof.
Background technology
Visible ray communication (VLC) namely utilizes the broadband effect of spectrum, by modulating, when human eye cannot be discovered, it is achieved the technology of data transmission.Theoretically, when adopting the complicated modulation techniques such as OFDM, it is seen that the bandwidth of optical communication (VLC) can be significantly high.The visible ray communication (VLC) having been reported that at present can reach 500Mbps.In the industry cycle, general high-speed applications is referred to as LiFi, and low-speed applications is called VLC.High-speed applications (LiFi) needs to coordinate the picture pick-up device of specialty, and finished product is high, currently mainly based on specialty and military's application.And low speed visible ray communication (VLC) application generally can by the photographic head of regular handset, by the information analysis in light out.
Visible ray communication (VLC) is as emerging mechanics of communication, it is common to had an optimistic view of by industry, also emerges some venture companies received much attention, such as U.S. Bytelight etc..But the present stage actual case that can obtain business application is also few.Main problem includes:
1) Maturity of technology and cost limit business application.
In actual application environment, due to the refraction of light, reflection and superposition, the modulation amplitude of optical signal can be decayed along with distance.Simultaneously when visible ray communication (VLC) light source of periphery is overlapped mutually, the difficulty of information analysis can be increased further.This project adopts orthogonal coding (Orthogonal), reduces the interference of light source superposition, it is ensured that in distance light source 10 meters, the information in light can be decoded by the photographic head of domestic consumer's mobile phone in 0.3 second, and discrimination is 100%.This project adopts the general LED drive chip obtaining technology independent research, it is possible to is driven by single-stage, on former limit, output is modulated.The same with the structure complexity of multiple power source, it does not have because visible ray communication (VLC) function increases any peripheral devices, cost is substantially reduced.It is top standard in the world at present.
2) value dimension of Consumer's Experience and business application limits popularization.
Current low speed visible ray communication (VLC) application, user mobile phone is it is generally required to more than 1 second could resolve the information in light, and Consumer's Experience is poor.Within resolution speed is risen to 0.3 second by this project, suitable with the scanning speed of Quick Response Code.Consumer's Experience is greatly promoted.As the entrance of mobile phone application, businessman can pass through this business entrances, and the information that transmission needs is to user, it is achieved the additional functions such as information reception and registration, location, guiding.
The entrance that Quick Response Code is applied as mobile phone, has been obtained for being widely applied, and becomes the effective means connecting online and offline (O2O).But the scanning of Quick Response Code is not only loaded down with trivial details, when particularly night and light condition are bad out of doors, Quick Response Code scanning is difficult to carry out.Therefore, a kind of mobile phone entry technique that can meet specific environment demand of market in urgent need, as a supplement.Visible ray communication (VLC) becomes first-selected technology.
In today that people's rhythm of life constantly promotes, lighting engineering is attracted the important means of artificial abortion as night by a lot of business premises, after all " people is phototaxis animal ".There are many developers not only to rest on Lighting Design itself at present, and wished using lamp as business entrances, light has added content, guide consumption person.It is expected that the Internet of Things application of China, the market of hundred billion grades can be formed in the coming years.Visible ray communication (VLC), will be the important component part in this market.
Summary of the invention
In order to overcome disadvantages mentioned above and the deficiency of prior art, the primary and foremost purpose of the present invention is in that to provide a kind of shopping guide method based on Zigbee communication and visible light communication, this shopping guide method, for promoting Smart Home, Intelligent Community, smart city, logistic industry and reading intelligent agriculture industry, has very strong practicality.
In order to overcome disadvantages mentioned above and the deficiency of prior art, another object of the present invention is to provide a kind of system realized based on Zigbee communication and the shopping guide method of visible light communication, this system achieves the market application item of more convenient practicality, be a kind of support that shopping guide's information transmits can MANET VLC alignment system.
The purpose of the present invention is primarily achieved through the following technical solutions: based on the shopping guide method of Zigbee communication and visible light communication, comprise the following steps:
Step 1, control centre control information LED lamplight and are transferred to Zigbee module；
Service information pushing is driven in module to corresponding LED modulation by step 2, Zigbee module through Zigbee terminal, and LED sends optical signal after overdriving；
The sensing light intensity change of step 3, receiving subsystem, generates the corresponding signal of telecommunication, after demodulated module demodulation process, restores primary signal, to utilize APP to realize location and navigation.
Described step 1 comprises the following steps:
The Mac address of each luminaire is individually managed by step 11, control centre so that each luminaire has the ID code of its uniqueness；
Step 12, control centre control information LED lamplight and are transferred to Zigbee module.
Described step 2 comprises the following steps:
Step 21, Zigbee module carry out networking and LED lamplight control information are transferred to Zigbee terminal simultaneously；
Step 22, Zigbee terminal transmission control the light on and off transmission visible light signal of LED.
Described step 3 comprises the following steps:
Step 31, mobile phone camera imageing sensor receive the visible light signal that within the scope of the same space, LED emission goes out simultaneously；
Step 32, receive after visible light signal, form bright secretly different hot spot on the image sensor, by the design of software algorithm, extract after the most bright spot LED ID light code comprised is identified, user can be positioned in the region at LED place.
Another object of the present invention is achieved through the following technical solutions: a kind of system realized based on Zigbee communication and the shopping guide method of visible light communication, including: launch subsystem, transmission subsystem and receiving subsystem, described transmitting subsystem has Zigbee module, Zigbee terminal, LED drive circuit and COB and encapsulates LED lamp, described receiving subsystem has: mobile phone camera and the APP through design, and described transmission subsystem is transferred to photoelectricity testing part for the visible light signal that COB encapsulation LED lamp is sent；Described Zigbee module, Zigbee terminal, LED drive circuit and COB encapsulate LED lamp and are sequentially connected with；Described Zigbee module carries out networking and LED lamplight control information is transferred to Zigbee terminal simultaneously, described Zigbee terminal transmission controls the light on and off transmission visible light signal of LED, described LED drive circuit drives COB to encapsulate LED lamp, described COB encapsulates LED lamp and launches visible light signal to mobile phone camera, the imageing sensor of described mobile phone camera receives the visible light signal that within the scope of the same space, LED emission goes out simultaneously, after described imageing sensor receives visible light signal, form bright secretly different hot spot on the image sensor, by the design of software algorithm, extract after the most bright spot LED ID light code comprised is identified, user can be positioned in the region at LED place.The mac address of each LED lamp is individually managed by described control centre so that each LED has the ID code of its uniqueness.
Described Zigbee module passes through MANET, by each LED lamp wireless networking.The digital modulation signals that described Zigbee terminal produces is loaded on LED drive circuit, and LED drive circuit passes through digital control bus, with the light output of the form control LED lamp of instruction；When digital signal is when time domain consecutive variations, the constant current output of LED drive circuit also changes therewith, is modulated with the amplitude to LED lamp luminous flux.Described LED lamp adopts the encapsulation of COB encapsulation technology to form.
The present invention passes through Zigbee ad hoc network, by LED drive power wireless networking, simultaneously by Zigbee network, controls the propagating contents of visible ray communication in real time.Zigbee Networking protocol meets Zigbee3.0HA protocol specification.Utilize Zigbee module and Zigbee terminal that LED is inputted signal, drive module in signal loading to LED lamp, receiving subsystem and APP will to be utilized to realize the extraction to optical signal, it is achieved location and navigation feature by LED modulation.This system utilizes LED to do room lighting communication, can not only realize illumination functions, and by wireless real-time update information, and can be broadcast to user by visible ray communication, have broad application prospects.
Compared with prior art, the present invention has the following advantages and beneficial effect:
(1) the driving power supply of a highly integrated, the low cost in conjunction with Zigbee and VLC, makes VLC function all can realize on dissimilar LED lamp product.
(2) location algorithm adopting extraction ID light code to be identified, improves VLC positional accuracy.
(3) include laying based on visible light communication commercially available, the convenient shopping guide's information transmission system of operation and maintenance.
(4) visible light communication location algorithm is applied on mobile phone A PP software and realizes navigation shopping guide.
(5) take into account the supermarket illuminated with visible light communication to illuminate.
Accompanying drawing explanation
Fig. 1 is the purchase guiding system schematic diagram that the present invention combines based on Zigbee communication and visible light communication.
Fig. 2 accepts the operating diagram of photographic head in subsystem.
Fig. 3 is the VLC schematic diagram being applied to shop orientation.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited to this.
Embodiment
As shown in Figure 1, a kind of market shopping guide system communicated with VLC based on Zigbee communication, including: launch subsystem, transmission subsystem and receiving subsystem, described transmitting subsystem has Zigbee module, Zigbee terminal, LED drive circuit and COB and encapsulates LED lamp, described receiving subsystem has: mobile phone camera and the APP through design, and described transmission subsystem is transferred to photoelectricity testing part for the visible light signal that COB encapsulation LED lamp is sent；Described Zigbee communication module controls information LED lamplight and is transferred to Zigbee terminal, by Zigbee ad hoc network, by LED drive power wireless networking.The Mac address of each luminaire is individually managed by control centre so that each luminaire has the ID code of its uniqueness, and by Zigbee network by service information pushing to corresponding luminaire.During signal transmission, Zigbee module can encode information onto, and the digital modulation signals produced after coding can be loaded in single-stage LED drive module.Drive power supply by digital control bus, with the light output of the form control luminaire (LED) of instruction.When digital signal is when time domain consecutive variations, drive the constant current output of power supply also to change therewith, namely realize the amplitude modulation(PAM) to luminous flux.Luminaire (LED) sends the light modulated, received by the imageing sensor of mobile phone camera, and it is converted into the signal of telecommunication, as in figure 2 it is shown, the imageing sensor of mobile phone camera receives the visible light signal that within the scope of the same space, LED emission goes out simultaneously, after receiving visible light signal, form bright secretly different hot spot on the image sensor, by the design of software algorithm, extract after the most bright spot LED ID light code comprised is identified, user can be positioned in the region at LED place.
As it is shown on figure 3, each light source itself has exclusive ID light code, mobile phone receives the optical signal of certain equipment, by ID is identified correspondence, can correspond to light source position, and the contrast according to default map file can obtain position.
Above-described embodiment is only one embodiment of the present invention; but embodiments of the present invention are also not restricted to the described embodiments; the change made under other any spirit without departing from the present invention and principle, modification, replacement, combination, simplification all should be the substitute mode of equivalence, are included within protection scope of the present invention.
Claims (9)
1. the shopping guide method based on Zigbee communication and visible light communication, it is characterised in that comprise the following steps:
Step 1, described control centre control information LED lamplight and are transferred to Zigbee module；
Service information pushing is driven in module to corresponding LED modulation through Zigbee terminal by step 2, described Zigbee module, and LED drive circuit sends optical signal after driving LED lamp；
The sensing light intensity change of step 3, receiving subsystem, generates the corresponding signal of telecommunication, after demodulated module demodulation process, restores primary signal, to utilize APP to realize location and navigation.
2. the shopping guide method based on Zigbee communication and visible light communication according to claim 1, it is characterised in that described step 1 comprises the following steps:
The Mac address of each luminaire is individually managed by step 11, control centre so that each luminaire has the ID code of its uniqueness；
Step 12, control centre control information LED lamplight and are transferred to Zigbee module.
3. the shopping guide method based on Zigbee communication and visible light communication according to claim 1, it is characterised in that described step 2 comprises the following steps:
Step 21, Zigbee module carry out networking and LED lamplight control information are transferred to Zigbee terminal simultaneously；
Step 22, Zigbee terminal transmission control the light on and off transmission visible light signal of LED.
4. the shopping guide method based on Zigbee communication and visible light communication according to claim 1, it is characterised in that described step 3 comprises the following steps:
Step 31, mobile phone camera imageing sensor receive the visible light signal that within the scope of the same space, LED emission goes out simultaneously；
Step 32, receive after visible light signal, form bright secretly different hot spot on the image sensor, by the design of software algorithm, extract after the ID light code that most bright spot LED lamp comprises is identified, so that user is positioned in the region at LED lamp place.
5. the system based on Zigbee communication and the shopping guide method of visible light communication realized described in claim 1, including: launch subsystem, transmission subsystem and receiving subsystem, the signal that described transmitting subsystem is launched is transferred to receiving subsystem by transmission subsystem, it is characterized in that, described transmitting subsystem has: control centre, Zigbee module, Zigbee terminal, LED drive circuit and LED lamp, described receiving subsystem has: mobile phone camera and the APP through design, described transmission subsystem is transferred to photoelectricity testing part for the visible light signal that COB encapsulation LED lamp is sent；Described Zigbee module, Zigbee terminal, LED drive circuit and LED lamp are sequentially connected with；Described Zigbee module controls information LED lamplight and is transferred to Zigbee terminal, the signal controlling LED lamp is transferred to LED drive circuit by described Zigbee terminal, described LED drive circuit drives LED lamp according to the signal controlling LED lamp, described LED lamp launches visible light signal to mobile phone camera, the imageing sensor of described mobile phone camera receives the visible light signal that within the scope of the same space, LED emission goes out simultaneously, after described imageing sensor receives visible light signal, form bright secretly different hot spot on the image sensor, after extracting the most bright spot LED ID light code comprised and being identified, just user is positioned in the region at LED place.
6. system according to claim 5, it is characterised in that the mac address of each LED lamp is individually managed by described control centre so that each LED has the ID code of its uniqueness.
7. system according to claim 5, it is characterised in that described Zigbee module passes through MANET, by each LED lamp wireless networking.
8. system according to claim 5, it is characterised in that the digital modulation signals that described Zigbee terminal produces is loaded on LED drive circuit, LED drive circuit passes through digital control bus, with the light output of the form control LED lamp of instruction；When digital signal is when time domain consecutive variations, the constant current output of LED drive circuit also changes therewith, is modulated with the amplitude to LED lamp luminous flux.
9. system according to claim 5, it is characterised in that described LED lamp adopts the encapsulation of COB encapsulation technology to form.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610184456.7A CN105719166A (en) | 2016-03-28 | 2016-03-28 | Shopping guide method based on Zigbee communication and visible light communication and system achieving method |
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| CN201610184456.7A CN105719166A (en) | 2016-03-28 | 2016-03-28 | Shopping guide method based on Zigbee communication and visible light communication and system achieving method |
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| CN106921459A (en) * | 2017-01-16 | 2017-07-04 | 华南理工大学 | A kind of indoor visible light asynchronous tracking method and system based on CDMA modulation |
| CN107818375A (en) * | 2017-11-09 | 2018-03-20 | 陕西外号信息技术有限公司 | A kind of service reservation method and system with diversion function based on optical label |
| CN108133412A (en) * | 2018-01-03 | 2018-06-08 | 京东方科技集团股份有限公司 | A kind of indoor navigation method and device |
| CN113132509A (en) * | 2019-12-30 | 2021-07-16 | Oppo广东移动通信有限公司 | Electronic device |
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| CN102967307A (en) * | 2012-11-23 | 2013-03-13 | 清华大学 | Positioning and navigation system based on indoor illumination |
| CN104504422A (en) * | 2014-12-24 | 2015-04-08 | 广州极汇信息科技有限公司 | Visible light communication based intelligent electronic shelf label system and application method thereof |
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| CN107818375A (en) * | 2017-11-09 | 2018-03-20 | 陕西外号信息技术有限公司 | A kind of service reservation method and system with diversion function based on optical label |
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