CN106790433A - Wi Fi modules, networked devices and household electrical appliance - Google Patents

Wi Fi modules, networked devices and household electrical appliance Download PDF

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Publication number
CN106790433A
CN106790433A CN201611103280.4A CN201611103280A CN106790433A CN 106790433 A CN106790433 A CN 106790433A CN 201611103280 A CN201611103280 A CN 201611103280A CN 106790433 A CN106790433 A CN 106790433A
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CN
China
Prior art keywords
signal
analog electrical
photodetector
circuit
processing unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201611103280.4A
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Chinese (zh)
Inventor
范林勇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Midea Group Co Ltd
Midea Smart Home Technology Co Ltd
Original Assignee
Midea Group Co Ltd
Midea Smart Home Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Midea Group Co Ltd, Midea Smart Home Technology Co Ltd filed Critical Midea Group Co Ltd
Priority to CN201611103280.4A priority Critical patent/CN106790433A/en
Publication of CN106790433A publication Critical patent/CN106790433A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/01Protocols
    • H04L67/12Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W12/00Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/04Key management, e.g. using generic bootstrapping architecture [GBA]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W12/00Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/08Access security
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/16Discovering, processing access restriction or access information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/18Selecting a network or a communication service
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/20Selecting an access point
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W84/00Network topologies
    • H04W84/02Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10Small scale networks; Flat hierarchical networks
    • H04W84/12WLAN [Wireless Local Area Networks]

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Health & Medical Sciences (AREA)
  • Computing Systems (AREA)
  • General Health & Medical Sciences (AREA)
  • Medical Informatics (AREA)
  • Small-Scale Networks (AREA)

Abstract

The present invention relates to the communications field, a kind of Wi Fi modules, networked devices and household electrical appliance are disclosed.Wherein, Wi Fi modules include photodetector, signal processing unit and Wi Fi units, wherein the photodetector, is configured to receive the optical signal comprising networked information, and the optical signal that will be received is changed into analog electrical signal;The signal processing unit, couples with the photodetector, is configured to for the analog electrical signal to be converted into digital electric signal;And the Wi Fi units, coupled with the signal processing unit, it is configured to obtain the networked information from the digital electric signal.By above-mentioned technical proposal, the optical signal comprising networked information is received using photodetector, Wi Fi devices can quickly be networked by Wi Fi units according to the networked information, and because optical signal has good directionality, hence in so that the transmission of networked information has confidentiality and security higher.

Description

Wi-Fi module, networked devices and household electrical appliance
Technical field
The present invention relates to the communications field, in particular it relates to a kind of Wi-Fi module, networked devices and household electrical appliance.
Background technology
Internet of Things (Internet of Things, IoT) is referred to various information sensing devices, such as radio frequency identification (RFID) a variety of devices such as device, infrared inductor, global positioning system, laser scanner combine and are formed with internet A huge network.The purpose is to allow all of article all together with network connection, conveniently recognize and manage.
Wi-Fi is the main wireless communication technology of IoT equipment.Needed as a WLAN when IoT equipment is used Stand (WLAN STA) access network, here, the networking of the equipment with input and display function such as mobile phone, panel computer, TV It is easier, but major part IoT equipment does not have above-mentioned similar functions, therefore the configuration of IoT equipment enters network technology mainly pin The configuration of the equipment resource-constrained to these networks.
At present, the mode that IoT device configurations network mainly includes access point (AP) pattern and fast gang mould formula.
Ap mode is the configuration method of network entry of conventional IoT equipment.When in this way, the IoT equipment of such as household electrical appliances Wi-Fi switch to soft AP (soft AP) pattern, mobile phone is connected with IoT device As P, and the clothes of corresponding router are sent to it Business set identifier (SSID) and password, then IoT equipment switch to STA mode, route with target according to the SSID and password for receiving Device is connected.
During using connecting distribution pattern soon, the Wi-Fi of IoT equipment is in promiscuous mode, monitors all messages in network.Hand Machine APP is sent in SSID and cipher coding to UDP (UDP) message by broadcast packet or multicast packets.IoT sets It is standby to receive decoding after message, SSID and password are obtained, then active linking objective router.
The configuration network access mode of above-mentioned IoT equipment needs the networked devices such as mobile phone to be connected with IoT equipment first With latter send router SSID and password, or need by broadcast or multicast send router SSID and password with IoT equipment is set to receive, two ways has that networking process is cumbersome and confidentiality is poor.
Regarding to the issue above, good solution is there is no in the prior art.
The content of the invention
It is an object of the invention to provide a kind of equipment, the equipment can safely and efficiently obtain the SSID and password of router With being capable of fast access into network.
To achieve these goals, the present invention provides a kind of Wi-Fi module, and the Wi-Fi module includes photodetector, letter Number processing unit and Wi-Fi units, wherein
The photodetector, is configured to receive the optical signal comprising networked information, and the optical signal that will be received It is changed into analog electrical signal;
The signal processing unit, couples with the photodetector, is configured to be converted into the analog electrical signal Digital electric signal;And
The Wi-Fi units, couple with the signal processing unit, are configured to obtain institute from the digital electric signal State networked information.
Further, the signal processing unit includes amplifying circuit, filter circuit and the comparison circuit of coupling, its In,
The amplifying circuit is configured to be amplified the analog electrical signal;
The filter circuit is configured to be filtered the analog electrical signal;And
The comparison circuit is configured to that filtered analog electrical signal will be amplified and reference voltage is compared to export The digital electric signal.
Further, the amplifying circuit is included for carrying out the electric across resistance amplification of primary amplification to the analog electrical signal Road and the main amplifying circuit for carrying out secondary amplification to the analog electrical signal.
Further, the filter circuit includes at least one of person:Active low-pass filter circuit, passive low-pass filter Circuit, bandwidth-limited circuit.
Further, the comparison circuit includes at least one of person:Comparator, operational amplifier.
Further, the signal processing unit and the Wi-Fi units are connected by universal input/output GPIO mouthfuls.
Further, the photodetector is one below person:Silicon based opto-electronicses diode, phototriode, CMOS light Electric explorer.
Further, the networked information includes the service set SSID and password of router.
A kind of another aspect of the present invention, there is provided networked devices, the networked devices include above-mentioned Wi-Fi module.
Further, the networked devices are Internet of Things IoT equipment.
A kind of another aspect of the invention, there is provided household electrical appliance, the household electrical appliance include above-mentioned networked devices.
By above-mentioned technical proposal, the optical signal comprising networked information is received using photodetector, Wi-Fi devices can be with Quickly networked according to the networked information by Wi-Fi units, and because optical signal has good directionality, hence in so that The transmission of networked information has confidentiality and security higher.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Brief description of the drawings
Accompanying drawing is, for providing a further understanding of the present invention, and to constitute the part of specification, with following tool Body implementation method is used to explain the present invention together, but is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the Wi-Fi devices composition structural representation that embodiment of the present invention is provided;
Fig. 2 is the Wi-Fi devices composition structural representation that one example embodiment of the present invention is provided;
Fig. 3 is the Wi-Fi devices composition structural representation that a preferred embodiment of the invention is provided;
Fig. 4 is the Wi-Fi devices composition structural representation that presently preferred implementation method is provided;
Fig. 5 is the Wi-Fi devices composition structural representation that another preferred embodiment of the invention is provided.
Description of reference numerals
The Wi-Fi units of 1 photodetector 2
The amplifying circuit of 3 signal processing unit 31
The comparison circuit of 32 filter circuit 33.
Specific embodiment
Specific embodiment of the invention is described in detail below in conjunction with accompanying drawing.It should be appreciated that this place is retouched The specific embodiment stated is merely to illustrate and explain the present invention, and is not intended to limit the invention.
Fig. 1 is the Wi-Fi devices composition structural representation that embodiment of the present invention is provided.As shown in figure 1, the present invention is implemented Mode provides a kind of Wi-Fi module, and the Wi-Fi module can include photodetector 1, signal processing unit 3 and Wi-Fi Unit 2, wherein the photodetector 1, may be configured to receive the optical signal comprising networked information, and will be received Optical signal is changed into analog electrical signal;The signal processing unit 3, couples with the photodetector 1, may be configured to by The analog electrical signal is converted into digital electric signal;And the Wi-Fi units 2, coupled with the signal processing unit 3, quilt It is configured to obtain the networked information from the digital electric signal.In embodiments, signal processing unit 3 can be to photoelectricity The analog electrical signal of the output of detector 1 include amplifying, filtering, digitlization etc. are processed, and is easy to the signal after treatment The identification of Wi-Fi units 2 is used.In embodiments, networked information can include the service set SSID and password of router. By above-mentioned technical proposal, the networked information of router can be safely and efficiently obtained by optical signal so that Wi-Fi module energy Enough fast access into network.
The visible light communication technology for being used in embodiments of the present invention is a kind of wireless with visible ray as carrier Transmission technology.The main part such as including visible light signal source, visible light channel, visible optical pickup apparatus of visible light communication system. Visible optical pickup apparatus use photodetector in embodiments of the present invention.Visible light signal source can be by mobile phone or The camera flash of panel computer sends visible light signal to realize, the SSID and password for being intended to the router of connection are loaded into On above-mentioned visible light signal.Wi-Fi module can be parsed and treat SSID after photodetector receives above-mentioned visible light signal And password such that it is able to by Wi-Fi unit linking objective routers.
By above-mentioned technical proposal, the optical signal comprising networked information is received using photodetector, Wi-Fi module can be with Quickly networked according to the networked information by Wi-Fi units, and because optical signal has good directionality, hence in so that The transmission of networked information has confidentiality and security higher.
Fig. 2 is the Wi-Fi devices composition structural representation that one example embodiment of the present invention is provided.As shown in Fig. 2 In one implementation method, signal processing unit 3 can include amplifying circuit 31, filter circuit 32 and the comparison circuit of coupling 33, wherein, the amplifying circuit 31 may be configured to be amplified the analog electrical signal, for example, amplifying circuit 31 can With including transimpedance amplifying circuit, main amplifying circuit etc., it would however also be possible to employ operational amplifier is constituted.In embodiments, it is described Amplifying circuit 31 can include for the analog electrical signal is carried out primary amplification across resistance amplifying circuit and for described Analog electrical signal carries out the main amplifying circuit of secondary amplification, wherein, by main amplifying circuit to the further amplification of signal, can obtain To being suitable for the electric signal that comparison circuit 33 is used.
In embodiments, the filter circuit 32 may be configured to filter amplified analog electrical signal, with logical Cross filtering to filter the noise in signal, improve the signal to noise ratio of signal.Filter circuit can be put by computing in embodiments The big device active low-pass filter circuit for constituting, the passive low-pass filter circuit or bandwidth-limited circuit for having resistance capacitance composition. The comparison circuit 33 may be configured to that filtered analog electrical signal will be amplified and reference voltage is compared to export Digital electric signal is stated, in the implementation method of citing, comparison circuit can be comparator or operational amplifier.In implementation method In, signal processing unit 3 and the Wi-Fi units 2 (or comparison circuit 33 and Wi-Fi units 2) can by universal input/ GPIO mouthfuls of output connects to obtain the effect of low-power consumption and small package.
In embodiments of the present invention, Wi-Fi units 2 can be the Wi-Fi chips with Wi-Fi functions.Additionally, In embodiments of the present invention, for the realization of photodetection, can select the sensitive silicon based opto-electronicses diode of visible light wave range, Phototriode or CMOS photodetectors.
It should be noted that in embodiments of the present invention, as long as the position of filter circuit 32 is located at photodetector 1 And comparison circuit 33 between, it is explained below in conjunction with accompanying drawing 3-5.
Fig. 3 is the Wi-Fi devices composition structural representation that a preferred embodiment of the invention is provided.As shown in figure 3, In a preferred embodiment of the present invention, photodetector receives the optical signal comprising networked information, the light letter that will be received Number it is changed into analog electrical signal;The analog electrical signal from photodetector is entered as primary amplifying circuit across resistance amplifying circuit Row is primary to be amplified;Filter circuit is to by the primary analog electrical signal filtering amplified;Main amplifying circuit is used as secondary amplification circuit Analog electrical signal to circuit filtering after filtering carries out secondary amplification;Comparison circuit is to by the secondary analog electrical signal for amplifying Processed, itself and reference voltage are compared to export the digital electric signal that can be recognized by Wi-Fi chips, then by number Word electric signal is by GPIO mouthfuls of output to Wi-Fi chips;Finally, Wi-Fi chips, obtain destination router from digital electric signal SSID and password for networking.
Fig. 4 is the Wi-Fi devices composition structural representation that presently preferred implementation method is provided.As shown in figure 4, In another preferred embodiment of the present invention, photodetector receives the optical signal comprising networked information, by what is received Optical signal is changed into analog electrical signal;The analog electrical signal filtering that filter circuit is exported to photodetector;Across resistance amplifying circuit Primary amplification is carried out to the analog electrical signal of circuit filtering after filtering as primary amplifying circuit;Main amplifying circuit is used as secondary Amplifying circuit by the primary analog electrical signal for amplifying to carrying out secondary amplification;Comparison circuit is to by the secondary simulation electricity for amplifying Signal is processed, and to export the digital electric signal that can be recognized by Wi-Fi chips, then itself and reference voltage are compared By digital electric signal by GPIO mouthfuls of output to Wi-Fi chips;Finally, Wi-Fi chips, obtain target road from digital electric signal By the SSID and password of device for networking.
Fig. 5 is the Wi-Fi devices composition structural representation that another preferred embodiment of the invention is provided.As shown in figure 5, In another preferred embodiment of the invention, photodetector receives the optical signal comprising networked information, by what is received Optical signal is changed into analog electrical signal;Across resistance amplifying circuit as primary amplifying circuit to the analog telecommunications from photodetector Number carry out primary amplification;Main amplifying circuit is put as secondary amplification circuit to carrying out secondary by the primary analog electrical signal for amplifying Greatly;Filter circuit is to by the secondary analog electrical signal filtering amplified;Comparison circuit is carried out to analog electrical signal after filtering Treatment, itself and reference voltage are compared to export the digital electric signal that can be recognized by Wi-Fi chips, then by digital electricity Signal is by GPIO mouthfuls of output to Wi-Fi chips;Finally, Wi-Fi chips, obtain destination router from digital electric signal SSID and password are for networking.
Compared with traditional Wi-Fi module, Wi-Fi module of the present invention is by increasing photodetector, amplification, filter Ripple, the circuit such as compare, you can realize the reception of visible light signal, and cost and volume only have minimal amount of increase.
Present invention also offers a kind of networked devices, the networked devices can include above-mentioned Wi-Fi module.In embodiment party In formula, the networked devices can be Internet of Things IoT equipment.The IoT equipment that embodiment of the present invention is provided can be provided simultaneously with The function of Wi-Fi and visible light communication, can be parsed from the visible light signal containing router SSID and password SSID and Password, is then directly networked.
Present invention also offers a kind of household electrical appliance, the household electrical appliance can include above-mentioned networked devices.
The preferred embodiment of the present invention is described in detail above in association with accompanying drawing, but, the present invention is not limited to above-mentioned reality The detail in mode is applied, in range of the technology design of the invention, various letters can be carried out to technical scheme Monotropic type, these simple variants belong to protection scope of the present invention.
It is further to note that each particular technique feature described in above-mentioned specific embodiment, in not lance In the case of shield, can be combined by any suitable means.In order to avoid unnecessary repetition, the present invention to it is various can The combination of energy is no longer separately illustrated.
Additionally, can also be combined between a variety of implementation methods of the invention, as long as it is without prejudice to originally The thought of invention, it should equally be considered as content disclosed in this invention.

Claims (11)

1. a kind of Wi-Fi module, it is characterised in that the Wi-Fi module includes photodetector, signal processing unit and Wi- Fi units, wherein
The photodetector, is configured to receive the optical signal comprising networked information, and the optical signal transformation that will be received It is analog electrical signal;
The signal processing unit, couples with the photodetector, is configured to for the analog electrical signal to be converted into numeral Electric signal;And
The Wi-Fi units, couple with the signal processing unit, are configured to obtain described from the digital electric signal Net information.
2. Wi-Fi module according to claim 1, it is characterised in that the signal processing unit includes the amplification of coupling Circuit, filter circuit and comparison circuit, wherein,
The amplifying circuit is configured to be amplified the analog electrical signal;
The filter circuit is configured to be filtered the analog electrical signal;And
The comparison circuit be configured to amplify filtered analog electrical signal be compared with reference voltage it is described to export Digital electric signal.
3. Wi-Fi module according to claim 2, it is characterised in that the amplifying circuit includes being used for the simulation Electric signal carries out the main amplification electricity across resistance amplifying circuit and for carrying out secondary amplification to the analog electrical signal of primary amplification Road.
4. Wi-Fi module according to claim 2, it is characterised in that the filter circuit includes at least one of person: Active low-pass filter circuit, passive low-pass filter circuit, bandwidth-limited circuit.
5. Wi-Fi module according to claim 2, it is characterised in that the comparison circuit includes at least one of person: Comparator, operational amplifier.
6. Wi-Fi module according to claim 1, it is characterised in that the signal processing unit and the Wi-Fi units By universal input/output GPIO mouthfuls of connection.
7. Wi-Fi module according to claim 1, it is characterised in that the photodetector is one below person:Silicon substrate Photodiode, phototriode, CMOS photodetectors.
8. the Wi-Fi module according to any one of claim 1-7, it is characterised in that the networked information includes route The service set SSID and password of device.
9. a kind of networked devices, it is characterised in that the networked devices include the Wi- according to any one of claim 1-8 Fi modules.
10. networked devices according to claim 9, it is characterised in that the networked devices are Internet of Things IoT equipment.
11. a kind of household electrical appliance, it is characterised in that the household electrical appliance include the networked devices according to claim 9 or 10.
CN201611103280.4A 2016-12-05 2016-12-05 Wi Fi modules, networked devices and household electrical appliance Pending CN106790433A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611103280.4A CN106790433A (en) 2016-12-05 2016-12-05 Wi Fi modules, networked devices and household electrical appliance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611103280.4A CN106790433A (en) 2016-12-05 2016-12-05 Wi Fi modules, networked devices and household electrical appliance

Publications (1)

Publication Number Publication Date
CN106790433A true CN106790433A (en) 2017-05-31

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103634047A (en) * 2013-12-09 2014-03-12 赵生捷 Visible light communication based bridging system
WO2016117764A1 (en) * 2015-01-23 2016-07-28 Mcaresys Corporation Internet of things capable of two way communicating with pet animal using mobile phone
CN106162807A (en) * 2016-09-30 2016-11-23 美的智慧家居科技有限公司 Method for network access, device and IoT equipment for Internet of Things IoT equipment

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103634047A (en) * 2013-12-09 2014-03-12 赵生捷 Visible light communication based bridging system
WO2016117764A1 (en) * 2015-01-23 2016-07-28 Mcaresys Corporation Internet of things capable of two way communicating with pet animal using mobile phone
CN106162807A (en) * 2016-09-30 2016-11-23 美的智慧家居科技有限公司 Method for network access, device and IoT equipment for Internet of Things IoT equipment

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Application publication date: 20170531

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