CN201837880U - Intelligent sound box based on Internet of things (IOT) - Google Patents
Intelligent sound box based on Internet of things (IOT) Download PDFInfo
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- CN201837880U CN201837880U CN2010205150360U CN201020515036U CN201837880U CN 201837880 U CN201837880 U CN 201837880U CN 2010205150360 U CN2010205150360 U CN 2010205150360U CN 201020515036 U CN201020515036 U CN 201020515036U CN 201837880 U CN201837880 U CN 201837880U
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Abstract
The utility model relates to an intelligent sound box based on an Internet of things (IOT), comprising a Wi-Fi gain antenna, a Wi-Fi transmission module, a 32-bit 12-thread multifunctional central processor and at least one sound box equipment, wherein the Wi-Fi gain antenna is used for conducting two-way transceiving of Wi-Fi signals with a gate or a router of an external Internet of things, sending external signals to the Wi-Fi transmission module and receiving feedback signals of the Wi-Fi transmission signals; the Wi-Fi transmission module is used for sending the signals received by the Wi-Fi gain antenna to the 32-bit 12-thread multifunctional central processor for processing, and transmitting the feedback signals from the 32-bit 12-thread multifunctional central processor to the Wi-Fi gain antenna; the 32-bit 12-thread multifunctional central processor is used for discovering and controlling various sound box equipment, and managing media; and the at least one sound box equipment receives the control and management of the 32-bit 12-thread multifunctional central processor through corresponding audio digital-to-analog converter and power amplifier so as to be connected into the external Internet of things.
Description
Technical field
The utility model relates to a kind of intelligent audio amplifier, belongs to sound equipment and interconnected field thereof, particularly a kind of wireless or wired sound box system based on Internet of Things.
Background technology
Along with the family expenses of broadband internet are popularized, network speed is more and more faster, people can utilize computer to download the digital audio file of forms such as free in a large number MP3, WMA, WAVE from Internet easily, play by dedicated play software, even can on PC, directly listen to online broadcast.Yet, most of people are accustomed to listening to music broadcast with traditional sound equipment already, therefore booming MP3 digital walkman has just been arranged, can play the DVD player of MP3, WMA form dish etc., but though these digital product playing network audio frequency that appear on the market, but can not seamlessly directly link up with broadband internet, directly play the music of oneself liking from network.
Wi-Fi is as a kind of short range wireless transmission technology of wireless industry successful example, owing to avoided the trouble of wiring, updating of various aspects of performance such as movability, speed, popularization, security, multimedia, ease for use and power consumption, make it become an indispensable part in the various new application systems, in family's network application, also obtained a lot of people's favor.The Wi-Fi technology is application and access point, wireless router and notebook computer not only, also widespread use and phone, mobile phone, PDA, printer, entertainment systems and interdynamic video recreation etc.
And sound equipment is widely used in various places, has increased the sound element of diversification for people's life, is the requisite sound device of modern society.Traditional sound system is generally wired sound system, and its sound signal need be transmitted by signal wire, the signal line wiring of this sound system trouble and influence attractive in appearancely, and the putting position of sound equipment also is restricted.
The notion of Internet of Things proposed in 1999.At that time based on internet, RFID technology, EPC standard, on the basis of computer internet, utilize REID, wireless data communication technology etc., constructed an internet in kind " Internet of things " (abbreviation Internet of Things) of realizing global Item Information Real-Time Sharing, this also is the basis that started first round China's Internet of Things upsurge in 2003.The definition of Internet of Things is: by information sensing equipment such as radio-frequency (RF) identification (RFID), infrared inductor, GPS, laser scanners, agreement by agreement, any article and Internet connection are got up, carry out message exchange and communication, to realize a kind of network of intelligent identification, location, tracking, monitoring and management.
On November 17th, 2005, in the World Summit on the Information Society of holding in Tunisia (WSIS), International Telecommunication Union has issued " ITU internet report 2005: Internet of Things ", has quoted the notion of " Internet of Things ".Report points out that immanent " Internet of Things " the communication epoch are coming, and all in the world objects can initiatively exchange by the Internet from the tire to the toothbrush, from the house to the paper handkerchief.REID (RFID), sensor technology, nanometer technology, intelligent embedded technology will arrive more widely and use.
The essence of Internet of Things is summarized and is mainly reflected in three aspects: the one, and the internet feature promptly must realize the internet that interconnects to the thing of needs networking; The 2nd, identification and communication feature, " thing " of promptly including Internet of Things in must possess communicate by letter with the thing thing function of (M2M) of automatic identification; The 3rd, intelligent feature, promptly network system should have the characteristics of robotization, oneself's feedback and Based Intelligent Control.
The English name of Internet of Things is " The Internet of Things ", is called for short: IOT.By this title as seen, Internet of Things is exactly " internet that the thing thing links to each other ".This has the two-layer meaning: the first, and the core and the basis of Internet of Things remain the internet, are extension on the basis, internet and a kind of network of expansion; The second, its user side extends and has expanded between any article and the article, carries out message exchange and communicates by letter.Therefore, the definition of Internet of Things is by information sensing equipment such as radio-frequency (RF) identification (RFID) device, infrared inductor, GPS, laser scanners, agreement by agreement, any article are connected with the internet, carry out message exchange and communicate by letter, to realize a kind of network of intelligent identification, location, tracking, monitoring and management.
Here " thing " will meet the following conditions and can be included into the scope of " Internet of Things ": the receiver that 1, corresponding information will be arranged; 2, data transmission path to be arranged; 3, certain memory function to be arranged; 4, CPU to be arranged; 5, operating system to be arranged; 6, special application program to be arranged; 7, data transmitter to be arranged; 8, follow the communication protocol of Internet of Things; 9, the unique number that can be identified is arranged in world's network.
Therefore, demand urgently proposing a kind ofly can supporting DLNA and Wi-Fi, thereby the audio amplifier of wireless access Internet of Things is provided.
The utility model content
At the deficiency of traditional audio amplifier, the technical scheme that the utility model adopted has provided a kind of intelligent audio amplifier based on Internet of Things.
According to the intelligent audio amplifier based on Internet of Things of the present utility model, comprise the Wi-Fi gain antenna, the Wi-Fi transport module, 32 the 12 multi-functional central processing units of thread, and at least one audio amplifier equipment, described Wi-Fi transport module is connected respectively to Wi-Fi gain antenna and 32 the 12 multi-functional central processing units of thread, and described 32 the 12 multi-functional central processing units of thread also are connected at least one audio amplifier equipment by audio digital to analog converter and power amplifier, it is characterized in that:
The Wi-Fi gain antenna is used for carrying out with outside things-internet gateway or router the bidirectional transmit-receive of Wi-Fi signal, and external signal is sent to the Wi-Fi transport module and receives feedback signal from the Wi-Fi transport module;
The Wi-Fi transport module is used for that the signal that the Wi-Fi gain antenna receives is transferred to 32 the 12 multi-functional central processing units of thread and handles, and will be transferred to the Wi-Fi gain antenna from the feedback signal of 32 the 12 multi-functional central processing units of thread;
32 the 12 multi-functional central processing units of thread carry out the discovery of various intelligent audio amplifiers, the management of control and medium;
At least one intelligent audio amplifier by corresponding audio digital to analog converter and power amplifier, receives control and management from 32 the 12 multi-functional central processing units of thread, thereby inserts outside Internet of Things.
According to preferred embodiment of the present utility model, the UPnP standard is adopted in the mutual detecting between wherein said at least one intelligent audio amplifier.
According to preferred embodiment of the present utility model, described intelligent sound box system also comprises power management module, is responsible for the electrical source consumption management function.
According to preferred embodiment of the present utility model, described intelligent sound box system also comprises the screen displaying driver module, supports 3.2～8 cun digital touch-screens.
According to preferred embodiment of the present utility model, described intelligent sound box system also comprises outside expansion load module, supports equipment I/O such as USB2.0/SD/MS/MMC.
According to preferred embodiment of the present utility model, wherein said Internet of Things intelligence audio amplifier is supported IEEE802.11b/g/n and IEEE 802.3/IEEE 802.3u, adopts wireless, wire transmission mode to accept the audio-source of internet and USB DIDK, the various forms of SD CARD.
According to preferred embodiment of the present utility model, the Graphic Documentation form of being supported is that JPG, audio form are LPCM, and film format is MPEG-2.
According to preferred embodiment of the present utility model, the Graphic Documentation form that can select to support comprises PNG, GIF and TIFF, the audio compressed format that can select to support comprises AAC, AC-3, ATRAC3Plus, MP3, WMA9, and the film compressed format that can select to support comprises MPEG-1, MPEG-4, AVC and WMV9.
Compare with other stereo set, but the utlity model has the wireless transmission sound signal, and carry out based on Internet of Things that intelligence inserts and control, thereby avoid making troubles and, can in the transmission of wireless signals scope, putting the advantage of sound system arbitrarily to influence attractive in appearance because of wiring.
Though will describe the utility model in conjunction with some exemplary enforcements and using method hereinafter, and it will be appreciated by those skilled in the art that and be not intended to the utility model is limited to these embodiment.Otherwise, be intended to cover all substitutes, correction and the equivalent that are included in defined spirit of the present utility model of appending claims and the scope.
Other advantages of the present utility model, target and feature will be set forth to a certain extent in the following description, and to a certain extent, based on being conspicuous to those skilled in the art, perhaps can from practice of the present utility model, obtain instruction to investigating hereinafter.Target of the present utility model and other advantages can be passed through following instructions, claims, and the specifically noted structure realizes and obtains in the accompanying drawing.
Description of drawings
Fig. 1 shows the pattern and the standard of the Smart Home based on Internet of Things of the present utility model;
Fig. 2 shows the block diagram of the intelligent sound box system based on Internet of Things of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the embodiment of the utility model based on the intelligent audio amplifier of Internet of Things is described in further detail.It should be noted that embodiment according to Internet of Things of the present utility model intelligence audio amplifier as just example, but the utility model is not limited to this embodiment.
According to basic design of the present utility model, the target of Internet of Things intelligence audio amplifier control system is " allowing the consumer arbitrarily enjoy any content at any time and any place ".In order to have realized inter-trade homogeneity of product, the utility model has defined two big assembly---media server and media hype equipment, and this is at the necessary equipment of family's devices in networks seamless interoperability.
These assemblies, and other interoperability guide makes up module, all based on open standard, for example Internet protocol IP, HTTP, UPnP and Wi-Fi agreement.The utility model is intended to solve individual PC based on the intelligent audio amplifier control system of Internet of Things, consumer appliances, and mobile device interconnects interior wireless network and cable network, makes the unconfined shared and growth of Digital Media and content service become possibility.The formed solution of Internet of Things intelligence audio amplifier control system of the present utility model is a kind of standard that everybody can observe, and it can support various very widely technology and the agreement used at present.
At present, wired (MoCA (coaxial cable) or Ethernet) or wireless (Wi-Fi) network have been installed by a lot of families, but light content shared is provided convenience between the unpromising networking gear of these networks.In the utility model, by the intelligent domestic appliance controller based on Internet of Things, the user just can find out the accurate position of digital content on home network, and moves between networking gear like a dream or transmit this content.
For instance, can be at home watch the DVR video recording, photo is sent to digital television, photo is sent to printer, watches the photo that is stored in the digital television or listens to the MP3 music that is stored among the PC by home stereo systems from mobile phone from mobile phone Anywhere or with mobile phone.Digital cable TV, satellite and IP set-top box and media server, broadband modem and residential gateway, high definition and digital television, Blu-rayTM player, CD writer and personal video recorder have been widely used at present.
Fig. 1 shows pattern and the standard of the utility model based on the Smart Home of Internet of Things.
Digital home by the CE of transparent cooperation, move and the network of PC equipment constitutes, its transmission is convenient, has seamless interoperability, strengthens and has enriched user experience.It is the communication and the control maincenter of home network, and it is based on IP networking and UPnP and Internet engineering duty group technology.The interoperability of equipment room realizes in the time of can carrying out transparent cooperation on offering user's specific service, comprises the capacity of equipment that communicates with one another with other equipment and exchange significant information.DLNA (Internet of Things audio amplifier control system) is devoted to release the interoperability guilding principle based on open industry standard, the network of the wired and wireless interoperable that foundation is made up of PC, consumer CE and mobile device is realized sharing and the seamless combination of developing new Digital Media and content service.
Fig. 2 shows the intelligent sound box system based on Internet of Things of the present utility model.Intelligent sound box system based on Internet of Things of the present utility model, comprise the Wi-Fi gain antenna, the Wi-Fi transport module, 32 the 12 multi-functional central processing units of thread, and at least one audio amplifier equipment, described Wi-Fi transport module is connected respectively to Wi-Fi gain antenna and 32 the 12 multi-functional central processing units of thread, and described 32 the 12 multi-functional central processing units of thread also are connected at least one audio amplifier equipment by audio digital to analog converter and power amplifier.
Wi-Fi gain antenna wherein is used for carrying out with outside things-internet gateway or router the bidirectional transmit-receive of Wi-Fi signal, and external signal is sent to the Wi-Fi transport module and receives feedback signal from the Wi-Fi transport module; The Wi-Fi transport module is used for that the signal that the Wi-Fi gain antenna receives is transferred to 32 the 12 multi-functional central processing units of thread and handles, and will be transferred to the Wi-Fi gain antenna from the feedback signal of 32 the 12 multi-functional central processing units of thread; 32 the 12 multi-functional central processing units of thread carry out the discovery of various audio amplifier equipment, the management of control and medium; At least one audio amplifier equipment by corresponding audio digital to analog converter and power amplifier, receives control and management from 32 the 12 multi-functional central processing units of thread, thereby inserts outside Internet of Things.
Hereinafter with reference to Fig. 2, each unit of this intelligence sound box system is described in detail.
The Wi-Fi gain antenna links to each other with the Wi-Fi transport module, as the signal transmitting and receiving end between whole intelligence control system and the outside Internet of Things.In the utility model, adopt the front end antenna that carries out the bidirectional transmit-receive of Wi-Fi signal with household electrical appliances things-internet gateway or router based on the intelligent audio amplifier control system of Internet of Things, a signal that institute is received or sends by means of wireless antenna gain (amplification).
According to the applied environment difference of Internet of Things audio amplifier control system, can adopt the wireless antenna of different qualities.Common has two kinds, and a kind of is domestic aerial, and advantage is convenient, flexible, and shortcoming is that gain is little, and transmission range is short; Another kind is an exterior aerial, and the advantage of exterior aerial is a long transmission distance.Relatively be fit to long-distance transmissions.The type of exterior aerial is many, the preferably directional antenna of pot shape, or bar-shaped omnidirectional antenna.
In the utility model, from/be that the intelligent audio amplifier of Internet of Things is customized to the Wi-Fi transport module of Wi-Fi gain antenna receptions/transmission signal.It supports multiple standards:
IEEE 802.11a: use the 5GHz frequency range, transmission speed 54Mbps, incompatible with 802.11b;
IEEE 802.11b: use the 2.4GHz frequency range, transmission speed 11Mbps;
IEEE 802.11g: use the 2.4GHz frequency range, transmission speed mainly contains 54Mbps, 108Mbps, can backward compatible 802.11b;
IEEE 802.11n: use the 2.4GHz frequency range, transmission speed can reach 300Mbps.
According to preferred embodiment of the present utility model, the Wi-Fi transport module has defined two kinds of mechanism and the access control of WLAN is provided and has maintained secrecy: service set identifier identifier (SSID) and Wired Equivalent Privacy (WEP).The another kind of encryption mechanism that can also use is to be undertaken by the transparent VPN (virtual private network) (VPN) that operates on the WLAN.SSID is that a characteristic of often using in the WLAN is the naming number that is called SSID, and it provides the access control on the low level.SSID is the network title of equipment in the WLAN subsystem normally; It is used for cutting apart subsystem in this locality.
In order to adapt to and to satisfy Internet of Things intelligence sound box system, Wi-Fi transport module of the present utility model also has following featured function.
At first be the dynamic rate conversion, when radio frequency situation variation, message transmission rate can be reduced to 200/100/54/11Mbps from 300Mbps.
The secondth, roaming is supported, when the user is mobile between building or corporate department, allows to carry out seamless link between accessing points.This allows wireless network user to use identical channel in the different network segments or roams mutually at different interchannels.
The 3rd is load balancing, and when AP became the excessive or signal weakening of load, NIC can change the accessing points AP that is attached thereto, and is transformed into best available AP automatically, to improve performance.The 4th is the automatic rate selection function, allowing the mobile subscriber to be arranged on automatic rate selects under (ARS) pattern, the ARS function can according to quality of signals and with the distance of bridge access point be each selection of transmission paths best transfer rate automatically, this function can also be arranged to different fixation application speed according to user's different application environment.
The 4th is the electrical source consumption management function, and it has defined the signaling method of MAC layer, by the control of power management software, makes the mobile subscriber can have the longest battery life.Power management can make network be in dormancy (low power supply or outage) state when no datat is transmitted, so just may lost data packets.For addressing this problem, stipulated that AP should have buffer zone and remove store information, the mobile subscriber who is in dormancy this information of recovery of can regularly waking up.
The 5th is function of keeping secret, only depends on common straight sequence spread spectrum coding modulation technique reliable inadequately, and as using the radio wideband scanner, its information is stolen again easily.Up-to-date wlan standard has adopted a kind of method that loads secret byte, makes wireless network have the confidentiality with the wired ethernet same levels.This cryptography technology is applied in the communication of US military radio secret in early days, the wireless other end must use the same cryptography mode just can mutual communication, also must be by the safety certification of AP access point when the wireless user utilizes the AP access point to be connected into cable network.This technology not only can prevent aerial eavesdropping, and is a kind of method of the effective mobile subscriber of wireless network authentication.
The 6th is that packets of information is reformed, and when the transmission frame is subjected to seriously disturbing, must retransmit.Therefore if a packets of information is big more, expending of required re-transmission is also just big more; At this moment,, big packets of information is divided into some little packets of information,, expends relatively little many even re-transmission also just retransmits a little packets of information if reduce frame size.So just can improve the antijamming capability of wireless network greatly in the noise area.
The 7th is that DHCP supports that DHCP (DHCP) is obtained automatically and rented the IP address from Dynamic Host Configuration Protocol server, makes the notebook computer user obtain new IP address automatically so that work on when network interrupts, thereby enjoys seamless roam.
The signal that receives from Wi-Fi gain antenna and Wi-Fi transport module will be sent to The whole control system core---32 the 12 multi-functional central processing unit core of thread control die set are handled.
32 the 12 multi-functional central processing unit core of thread control die set adopt 32 12 thread central processing units, can be according to the dissimilar SDRAM/FLASH of different application environmental selection.Its core Control Software characteristic adopts linux system, and supports Wi-Fi/DLNA/UPNP/WIN7.
Next, will describe the basic functional principle of core control die set in detail according to preferred embodiment of the present utility model.
Intelligent audio amplifier control die set based on Internet of Things of the present utility model becomes 5 functional modules with its whole application specifies.Be followed successively by from top to bottom: network interconnection, procotol, media delivery, the discovery control and the management of equipment, media formats.
Below putting up with each functional module is described in detail.
(1) the intelligent audio amplifier control system functional module based on Internet of Things constitutes framework
Media formats (Media Formats)
Device discovery, control and media management (Device Discovery, control and Media Management)
Media delivery (Media Transport)
Network stack (Network Stack)
The network interconnection (Network Connectivity)
Table-1 shows each functional module corresponding techniques and agreement of the present utility model.
Table-1
Functional module important technology and agreement
Connectivity Ethernet，802.11，and?Bluetooth
Networking IPv4?Suite
Device?Discovery?and?Control UPnP?Device?Architecture?1.0
Media?Management?and?Control UPnP?AV?1.0?and?UPnP?Printer：1
Media?Format Required?and?Optional?Format?Profiles
Media?Transport HTTP(Mandatory)?and?RTP
(Optional)
(1) network interconnection.It has stipulated the type and the agreement of institute's access network.At present, mainly comprise:
Cable network: 802.3.i/u
Wireless network: 802.11/a/b/g/n
(2) procotol.It has stipulated employed procotol.At present, its regulation must be supported IPv4.But consider the shortcoming of IPv4 such as address space, will support IPv6 in the near future.Certainly, consider many application and the equipment of the IPv4 existed.In a very long time in future, support IPv4 and IPv6 simultaneously and guarantee IPv4 and the dual protocol stack of the interconnection of IPv6 will be subjected to the parent and relies.
(3) media delivery.It has stipulated all must support to use http protocol to carry out the transmission of medium based on all devices of the audio amplifier control system of Internet of Things.This will make the following a very long time, the transmission of carrying out big data quantity that needs to improve high-speed secure on the http protocol.Merely with regard to safety and right, TLS should be good selection.In addition, IPSEC has become an essential option in the agreement of IPv6, and this has also solved safety problem to a certain extent.Yet the work of using software to do encryption and decryption in the utility model is not suitable selection.Because in real application, processing speed is the problem of overriding concern.Certainly, also can use other special-purpose media flow transmission agreements of RTP, but prerequisite is to have supported the transmission under the http protocol.
(4) discovery of equipment, the management of control and medium.This functional module is a most important level.Since Intel initiated UpnP, UPnP rested on agreement phase for a long time, and application (IDG is an exception) is seldom arranged.Audio amplifier control system based on Internet of Things of the present utility model has adopted UPnP Device Architecture 1.0 and UPnP AV 1.0 and UPnPPrinter:1.About more ins and outs of UpnP, can give unnecessary details no longer one by one referring to the every open-standards in the UPnP forum herein.In a word, it reaches the discovery and the management of equipment by a series of step and agreement, and also AV by manufacturer's definition and Printer standard reach management to medium simultaneously.
(5) media formats, this is a last assembly.Media formats when it has stipulated to carry out the shared and use of Digital Media and content.What it must be supported is: JPEG, LPCM, MPEG2.Other optional media formatss see Table-2.
Table-2
The media formats of being supported based on the intelligent audio amplifier control system of Internet of Things
The form that the form that media categories must be supported can be supported
Image JPEG PNG，GIF，TIFF
Audio LPCM AAC，AC-3，ATRAC?3plus，MP3，WMA9
AV MPEG2 MPEG-1，MPEG-4*，AVC，WMV9
Internet of Things intelligence audio amplifier control system standard of the present utility model is based on the middle interlayer on the legacy network framework, mainly be to allow support the equipment of this layer definition to communicate with each other, and the setting that does not need to do other is in addition moved, Internet of Things intelligence audio amplifier control system standard with 1.5 editions, Ethernet and Wi-Fi (802.11a/b/g/n) have just been supported, as the standard device of Internet of Things audio amplifier control system, the support of network is indispensable at last.
As for the mutual detecting between each equipment, then be to adopt the UPnP standard.DMP equipment comes the DMS device that can mate mutually on the search for networks by UPnP mechanism, just can carry out follow-up broadcast or transmission action after successfully connecting.This action is full automatic, so the user need not carry out any interference.
Aspect the discovery of media content, be to adopt UPnP mechanism too.
On the multimedia form that can transmit, then be divided into indispensable support and can free support two aspects, aspect the indispensability support, the Graphic Documentation form is that JPG, audio form are LPCM, film format is MPEG-2.And can select aspect the form, Graphic Documentation is PNG, GIF and TIFF, audio compressed format then is AAC, AC-3, ATRAC3Plus, MP3, WMA9 or the like, as on film compressed format, then can comprise MPEG-1, MPEG-4, AVC and WMV9 or the like, because network transfer speeds is still waiting to break through at present, therefore generally all be partial to support the compressed format of high compression ratio.
As shown in Figure 2, the intelligent sound box system based on Internet of Things of the present utility model also comprises each peripheral circuit.Power management module is responsible for the electrical source consumption management function, by the control of power management software, makes the mobile subscriber can have the longest battery life.Power management can make network be in dormancy (low power supply or outage) state when no datat is transmitted, so just may lost data packets.For addressing this problem, the utility model has stipulated that AP should have buffer zone and remove store information, the mobile subscriber who is in dormancy this information of recovery of can regularly waking up.
And the screen displaying driver module is supported 3.2～8 cun digital touch-screens.
Outside expansion load module is supported equipment I/O such as USB2.0/SD/MS/MMC.
Via the signal that 32 the 12 multi-functional central processing unit core of thread control die set are handled, by the audio signal output module, select audio digital to analog converter and power amplifier according to different demands, finally drive the Internet of Things intelligence audio amplifier of different model.
According to preferred embodiment of the present utility model, Internet of Things intelligence audio amplifier is supported IEEE 802.11b/g/n, IEEE 802.3/IEEE 802.3u, adopt wireless, wire transmission mode to accept the audio-source of internet and USB DIDK, the various forms of SD CARD, output two-way 2 vocal tract analog sound signals (1 road EARPHONE, 1 road LINEOUT), two-way digital audio and video signals (one road I2S and one road SPDIF); And possesses various interface.
It has following featured function:
● wireless network (Wireless)-〉 intelligent radio (DLNA/WIFI) access Internet network
● ubiquitous (Anywhere)-〉 bathroom, kitchen, balcony, garden ...
● follow one's bent (Anyway)-〉 TV, computer, notebook, mobile phone ...
● digital fashion (Fashion)-〉 iphone, ipod, NOKIA...
● international authentication (Internation)-〉 dlna UPnP WiFi Windows7
According to preferred embodiment of the present utility model, Internet of Things intelligence audio amplifier has digital audio decoding control die set featured function and performance.
DLNA wireless network music is accepted and is play, and comprising:
Network audio player network audio player
Wireless speakers wireless speaker
Digital media receiver digital media receiver
Digital photo frame digital album (digital photo frame)
Also have following characteristic performance in addition:
·High-fidelity?audio
·High?Dana?192kHz?of?DAC?support
·Full?bitrate?audio?codec?file?code?for：MP3music/AAC/WAV/WMA
format(Can?be?expanded?to?any?desired?format)
·Tactical?I2S?interface?or?digital?S/PDIF?sound?frequency?of?Super
·Offers?as?many?kinds?of?display?functionality
·Multiline?character?matrix?and?other?genres?of?display
·Infrared?remote?control
·DLNA?1.5-compliant?digital?media?renderer(DMR)
·Interact?with?Windows7，or?other?digital?media?controller(DMC)anddigital?media?server(DMS)
·Can?be?customized?Apple?iPod/iPhone?DMC?control?applications
·Easy?and?reliable?network
·Push-button?network?settings?through?the?Wi-Fi?protected?set(WPS)
·Windows?Connect?Now(WCN-UFD)of?the?USB?Installation
·Support?high-performance，long-range?802.11n
Hi-Fi audio frequency
High Dana 192kHz DAC supports
Bitrate audio codec document code is fully: MP3 music/AAC/WAV/WMA form (can be extended to all desired format)
Operation I2S interface or digital S/PDIF reasonable frequency are super
Many Presentation Functions are provided
The character matrix of multirow and other styles of demonstration
Infrared remote control
The digital media renderer (DMR) that DLNA 1.5 obeys
With Windows7 interaction or other digital media controllers (DMC) and digital medium server (DMS)
The iPod/iPhone DMC of the Apple Computer control that can be customization is used
Easy and reliable network
Push-button network settings have been protected set (WPS) by Wi-Fi
Windows connects (WCN-UFD) USB facility now
High performance support, long-range 802.11n
In preferred embodiment of the present utility model, DAB digital-to-analog conversion and power amplifier module can be supported Hi-Fi audio frequency, and 192kHz DAC supports that the DA the key technical indexes is as follows:
1) resolution (Resolution) refers to the ratio of minimum imitated output quantity (corresponding digital quantity only lowest order for ' 1 ') and maximum (all significance bits of corresponding digital quantity are ' 1 ').
2) be that a digital quantity is converted to the required time of stable simulation signal Time Created (Setting Time), also can think switching time.Describe its speed Time Created commonly used among the DA, rather than the switching rate of using always among the AD.Usually, DA is shorter Time Created in electric current output, and DA is then longer in voltage output.
Other indexs also have the linearity (Linearity), conversion accuracy, temperature coefficient/drift.
Table-3 shows some audio frequency parameters of Internet of Things intelligence audio amplifier of the present utility model.
A), stereo
B), SPDIF:IEC 60958, digital format, Vpp:3.3V
Between-40～85 ℃, working temperature is between-10～50 ℃ according to the storing temperature of Internet of Things of the present utility model intelligence audio amplifier, and the humidity maximal value is 95%.
The above is a preferred embodiment of the present utility model only, is not limited to the utility model, and obviously, those skilled in the art can carry out various changes and modification and not break away from spirit and scope of the present utility model the utility model.Like this, if of the present utility model these are revised and modification belongs within the scope of the utility model claim and equivalent technologies thereof, then the utility model also is intended to comprise these changes and modification interior.
Claims (8)
1. intelligent audio amplifier based on Internet of Things, comprise the Wi-Fi gain antenna, the Wi-Fi transport module, 32 the 12 multi-functional central processing units of thread, and at least one audio amplifier equipment, described Wi-Fi transport module is connected respectively to Wi-Fi gain antenna and 32 the 12 multi-functional central processing units of thread, and described 32 the 12 multi-functional central processing units of thread also are connected at least one audio amplifier equipment by audio digital to analog converter and power amplifier, it is characterized in that:
The Wi-Fi gain antenna is used for carrying out with outside things-internet gateway or router the bidirectional transmit-receive of Wi-Fi signal, and external signal is sent to the Wi-Fi transport module and receives feedback signal from the Wi-Fi transport module;
The Wi-Fi transport module is used for that the signal that the Wi-Fi gain antenna receives is transferred to 32 the 12 multi-functional central processing units of thread and handles, and will be transferred to the Wi-Fi gain antenna from the feedback signal of 32 the 12 multi-functional central processing units of thread;
32 the 12 multi-functional central processing units of thread carry out the discovery of various audio amplifier equipment, the management of control and medium;
At least one audio amplifier equipment by corresponding audio digital to analog converter and power amplifier, receives control and management from 32 the 12 multi-functional central processing units of thread, thereby inserts outside Internet of Things.
2. according to the intelligent audio amplifier of claim 1, the UPnP standard is adopted in the mutual detecting between wherein said at least one intelligent audio amplifier.
3. according to the intelligent audio amplifier of claim 1, wherein also comprise power management module, be responsible for the electrical source consumption management function.
4. according to the intelligent audio amplifier of claim 1, wherein also comprise the screen displaying driver module, support 3.2～8 cun digital touch-screens.
5. according to the intelligent audio amplifier of claim 1, wherein also comprise outside expansion load module, support equipment I/O such as USB2.0/SD/MS/MMC.
6. according to the intelligent audio amplifier of claim 1, wherein said Internet of Things intelligence audio amplifier is supported IEEE802.11b/g/n and IEEE 802.3/IEEE 802.3u, adopts wireless, wire transmission mode to accept the audio-source of internet and USB DIDK, the various forms of SD CARD.
7. according to the intelligent audio amplifier of claim 1, the Graphic Documentation form of being supported is that JPG, audio form are LPCM, and film format is MPEG-2.
8. according to the intelligent audio amplifier of claim 1, the Graphic Documentation form that can select to support comprises PNG, GIF and TIFF, the audio compressed format that can select to support comprises AAC, AC-3, ATRAC3Plus, MP3, WMA9, and the film compressed format that can select to support comprises MPEG-1, MPEG-4, AVC and WMV9.
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| CN2010205150360U CN201837880U (en) | 2010-09-03 | 2010-09-03 | Intelligent sound box based on Internet of things (IOT) |
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| CN201837880U true CN201837880U (en) | 2011-05-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101937226A (en) * | 2010-09-03 | 2011-01-05 | 深圳市中科诺数码科技有限公司 | Thing internet-based intelligent sound box |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101937226A (en) * | 2010-09-03 | 2011-01-05 | 深圳市中科诺数码科技有限公司 | Thing internet-based intelligent sound box |
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