CN205427467U - Many speech signal collection system's intelligent house ecosystem - Google Patents
Many speech signal collection system's intelligent house ecosystem Download PDFInfo
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- CN205427467U CN205427467U CN201520664814.5U CN201520664814U CN205427467U CN 205427467 U CN205427467 U CN 205427467U CN 201520664814 U CN201520664814 U CN 201520664814U CN 205427467 U CN205427467 U CN 205427467U
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Abstract
The utility model provides a many speech signal collection system's intelligent house ecosystem, belongs to intelligent house field, and it can various electronic function modules interact combines the orderly system of structure that forms, its adjustable environment that provides an intellectuality for human or other animals. Include pronunciation instruction acquisition unit, hybrid power source power supply unit, central processing unit, wifi module, infrared module, environment detection module, power consumption device control module, IPVA -VMU: including the analog camera that the order is connected, video AD converter, the FPGA treater, the DSP treater, the FPGA treater is connected with SRAM1 memory and SARM0 memory, and the DSP treater passes through I2C bus connection video AD converter, and the DSP treater is connected with storage device, pronunciation instruction acquisition unit, hybrid power source power supply unit, wifi module, infrared module, environment detection module, power consumption device control module, IPVA -VMU all are connected with central processing unit.
Description
Technical field
The invention belongs to intelligent domestic system technical field, it is provided that the Smart Home ecosystem of a kind of more voice signal pickup assembly.
Background technology
nullProposition along with domestic " internet+" theory，" internet+" every field the most at home starts upsurge，And compare over the today being greatly improved in people's material and cultural life，The intelligence degree of the many living environment of people proposes new requirement，People can not meet the regulation and control to living environment of traditional Artificial Control，And the intelligence degree of living environment is proposed new requirement，Thus Smart Home has obtained new development under " internet+" theory，" internet+" it represent a kind of new social pattern，I.e. give full play to internet optimization in configuration of social resources and integrated effect，By the innovation achievement depth integration of internet in economy、Among each field of society，Promote innovation and the productivity of the whole society，Form the widely economic development neomorph of facility and implementation tool based on internet.
The origin of Smart Home concept is very early, but there is not concrete building case to occur always, until 1984 American Association scientific & technical corporation (United Technologies Building System) by information-based for Architectural Equipment, integration concept is applied to U.S. Connecticut (Conneticut) Hart Fo Shi (Hartford) CityPlaceBuilding time, just occur in that " intelligent building " of first, opened the whole world from this and fallen over each other to build the prelude of Smart Home group.
In Guangzhou light Asia exhibition in 2014, Smart Home carries all before one especially, becomes the favorite of this product, simultaneously also with the development of 4G, network signal constantly strengthen covering, also expedited the emergence of the continuous fast development of Smart Home industry.
Instantly a lot of Smart Home products have come into the family of we ordinary people, and the family of let us really realizes intelligence, environmental protection, and comfortable and safe, the most also the life of let us increases more enjoyment.The coming five years we will welcome the first year that Smart Home develops rapidly.
Smart Home, or title intelligent dwelling, with house as platform, have both building, network service, information household appliances, equipment automatization, collecting system, structure, service, manage efficient, comfortable, safe and convenient, the living environment of environmental protection being integrated, show fully convenient by the various equipment (such as audio & video equipment, illuminator, curtain control, airconditioning control, safety-protection system, Digital Theater System, network home appliance etc.) in family by home-network linkups to together.Utilize comprehensive wiring technology, the network communications technology, security precautions technology, automatic control technology, audio frequency and video technology by integrated for facility relevant for life staying idle at home, build the management system of efficient housing facilities and family's schedule affairs, promote house security, convenience, comfortableness, artistry, and realize the living environment of environmental protection and energy saving.
The Smart Home ecosystem is the structurally ordered system being combined into by the interaction of various electronic functional modules, and it is the mankind or other animal one intelligentized adjustable environment of offer.
The Smart Home ecosystem mainly comprises: home cabling system, domestic network system, Intelligent housing management system, lighting of home control system, Household security system, background music system, home theater and the big system of multimedia system, home environment control system etc. eight.And developing rapidly along with speech recognition technology, the accuracy rate of existing speech recognition technology has reached more than 95%, therefore it is widely used in speech recognition technology instruction identification in intelligent domestic system, therefore the pickup to the phonetic control command of premises is the most extremely important, the instruction sent such as other electronic equipments of raising one's voice can be there is and can be judged by accident by intelligent domestic system in voice signal pickup when, if and user gos out, the phonetic order sent in television set is also possible to be performed by intelligent domestic system identification.
Summary of the invention
It is an object of the invention to provide a kind of Smart Home ecosystem, the structurally ordered system that the various electronic functional modules interaction of its energy is combined into, it is the mankind or other animal one intelligentized adjustable environment of offer.
In order to achieve the above object, the present invention adopts the following technical scheme that
The Smart Home ecosystem of a kind of more voice signal pickup assembly, it is characterised in that including:
Phonetic order collecting unit: include Doppler's leading portion voice signal acquisition device and voice collecting bracelet, for receiving the phonetic order being used for, including Doppler's voice acquisition device and signal Doppler's leading portion voice signal acquisition device for gathering voice signal；
AC-battery power source electric supply installation: include solar units and city's electric unit, power for whole system；
Central processing unit: be used for processing coordination and control each equipment；
Wifi module: communicate for wifi；
Infrared module: include single-chip microcomputer, infrared receiver transmitter and the keyboard of input instruction, communicated by RS232 serial ports with central controller；
Context detection module: be used for detecting environmental information, including Temperature Humidity Sensor, optical sensor, Smoke Sensor；
Electrical equipment control module: include can EBI, can EBI connects motorized window control module, exhaust fan control module；
Video monitor unit: include the simulation camera being linked in sequence, video a/d converter, FPGA processor, DSP Processor, described FPGA processor connects SRAM1 memory and SARM0 memory, DSP Processor connects video a/d converter by I2C bus, and DSP Processor connects storage device；
Described phonetic order collecting unit, AC-battery power source electric supply installation, Wifi module, infrared module, context detection module, electrical equipment control module, video monitor unit are all connected with central processing unit.
In technique scheme, Doppler's leading portion voice signal acquisition device includes,
Signal input circuit: be used for receiving radio signal, including the resonance circuit of coil T1 and trimming capacitor C A composition, coil T1 includes a winding and Secondary Winding, and one time winding two ends connect trimming capacitor C A；
Mixting circuit: the radio signal received is become intermediate frequency, the emitter stage oscillation signals according including triode VT1, triode VT1 can obtain intermediate-freuqncy signal to the signal modulation of the resonance circuit input of coil T1, trimming capacitor C A composition at colelctor electrode；
IF amplifier circuit: intermediate frequency amplitude-modulated signal is amplified to the size required by detecting circuit；
Detecting circuit: the audio signal entrained by intermediate frequency amplitude-modulated signal taken off, gives preposition audio amplifier of loweing；
Preposition audio amplifier of loweing: detection audio signal out is carried out voltage amplification；
Power module: provide power supply, uses electric capacity half-wave reduction voltage circuit.
In technique scheme, voice collecting bracelet includes table body (1) and watchband, it is characterised in that: table body arranges inner chamber, is provided with wireless Mac circuit and the solar charging circuit powered for wireless Mac circuit in inner chamber,
Being provided with rectangular channel (1-4) on described table body, be provided with routing hole (1-6) in rectangular channel (1-4), solar charging circuit includes that solar energy electroplax, solar energy electroplax are arranged in rectangular channel (1-4)；
The MIC through hole (1-2) for installing microphone it is provided with on described table body；
Described table body side surface is provided with a day line three-way hole (1-5)；
Described watchband includes interior band (2-2), in addition (2-1), and interior band (2-2) is provided with fixing hole (2-4), and tyre is provided with the buckle (2-5) coordinated with fixing hole (2-4).
It is provided with shift knob (1-3) on described table body (1).
In technique scheme, Doppler's voice acquisition device includes,
System power supply: working power is provided；
Micro-wave resonator circuit: to emission and reception electromagnetic wave, the displacement signal moved by object is converted into the corresponding signal of telecommunication；
Low pass amplifying circuit: signal is amplified and filters 50Hz and disturbs signal；
Floating comparator: output low level time static, output square-wave signal during prime output alternating signal；
Delay circuit: when receiving square-wave signal, drives rear class wireless Mike unit,
Wireless Mike's unit: convert voice signals into wireless signal；
Enter in induction range when there being mobile object, the displacement signal moved by object is converted into the corresponding signal of telecommunication and passes through after low pass amplifying circuit filters by driving delay circuit to work through Floating comparator output square-wave signal, delay circuit drives rear class wireless Mike cell operation, and the voice messaging collected is converted to wireless signal by wireless Mike's unit.
In technique scheme, AC-battery power source electric supply installation includes,
Solar units: include solar cell, solar cell connects DC/DC converter；
City's electric unit: city's electric unit includes civil power is converted to galvanic AC/DC converter；
Charging control circuit: control switching solar units, city's electric unit and the connection of battery；
Battery: store electric energy and for loading energy supply；
DSP control unit: according to the detection information of detector unit, control the duty of charging control circuit；
Detector unit: include the solar cell current sensing means for detecting solar cell size of current, the battery tension detector unit of detection battery tension size.
In technique scheme, it is connected between described dsp controller and central processing unit and has power management module.
In technique scheme, solar energy electroplax that described solar charging circuit includes being linked in sequence, self-excited oscillation circuit, high frequency boosting unit, rectification circuit, pressure limiting circuit, filter circuit,
Described high frequency boosting unit uses high frequency transformer, and high frequency transformer includes the coil N1 and coil N2 of primary side, second siding ring N3；
Self-excited oscillation circuit includes triode Q1, be sequentially connected with electronics R1, resistance R3, electric capacity C2, electric capacity C2 meets the coil N2 of high frequency transformer, the colelctor electrode wiring circle N1 of triode Q1, grounded emitter；
In technique scheme: pressure limiting circuit includes triode Q2, resistance R5, resistance R6, diode VD2, the connection end of the colelctor electrode connecting resistance R1 and resistance R3 of triode Q2, base stage is by the common port of diode VD2 connecting resistance R5 and resistance R6, resistance R5 and resistance R6 connects and is followed by coil N3 two ends, and described filter unit includes the electric capacity C3 of wiring circle N3 output；Described rectification circuit includes diode D1, diode D1 wiring circle N3 positive output end.
nullIn technique scheme，Wireless Mac circuit includes resistance R7、Electric capacity C4-C8、Inductance L1-L2、Switch S1、Power supply、Triode Q3，Positive source connecting valve S1 the first end，Second end of the switch S1 base stage by electric capacity C4 connecting triode Q3，The base stage of triode Q3 connects biasing resistor R7，The other end of biasing resistor R7 connects power supply by switch S1，The colelctor electrode of triode connects electric capacity C5、Inductance L1、Electric capacity C6，Electric capacity C5、The other end of inductance L1 connects power supply by switch S1，The emitter stage of the other end connecting triode Q3 of electric capacity C6，The emitter stage of triode connects microphone MIC，Microphone MIC connects power cathode，Electric capacity C8 is connected to both ends of power,The emitter stage of triode Q3 connects electric capacity C7，Electric capacity C7 connects inductance L2，Inductance L2 connects antenna.
Compared with the existing technology, its beneficial effect shows the present invention:
One, the structurally ordered system that the various electronic functional modules interaction of its energy is combined into, it is the mankind or other animal one intelligentized adjustable environment of offer.
Two, the utility model can coordinate wireless Mike's unit to be received the voice wireless signal in home environment, and its simple in construction is with low cost, it is possible to meets the demand that in intelligent domestic system, radio audio signals gathers.
Three, use native system only when people close to this device when, wireless Mac circuit just starts working, will the voice messaging that sends of reception personage.
Four, a kind of AC-battery power source power supply device using solar energy and civil power of the utility model, it more equipment situation can provide solar energy function and city's Electricity Functional, energy-conserving and environment-protective, and solar energy can be as stand-by power supply, can power for the basic function of intelligent domestic system when civil power power-off, it is provided that the stability of whole intelligent domestic system and practicality.
Five, the DC inverter of solar energy can be become alternating current by the utility model inversion unit is alternating current equipment energy supply, enhances the practicality of system power supply.
Six, the utility model uses rectangular channel to fix solar energy electroplax, increases the back side lifting surface area of solar energy electroplax, by increasing capacitance it is possible to increase the compression capability of solar energy electroplax, prevents solar energy electroplax to be subject to crushing.
Seven, microphone signal of the present utility model inputs from transistor base unlike the past, but microphone is connected on emitter stage, when microphone self inductance current is with sound size variation, the operating current of Q3 also can change therewith, Cbe variate simultaneously is held in Q3 economize on electricity, Cbe with C4 is in parallel with LC loop again after connecting, it is thereby achieved that frequency modulation.This connection of MIC completely avoid the audio signal distortion through overcoupling electric capacity, therefore, the Hz-KHz width of this microphone, and tonequality is pure, working stability, even if hand touches antenna and also do not interferes with LC frequency of oscillation.
Eight, the bracelet of the application its use solar powered, entirety enhances the flying power of Intelligent bracelet, efficiently solves the high energy consumption problem of bracelet.
Accompanying drawing explanation
Fig. 1 is the application system architecture diagram；
Fig. 2 is Doppler's voice acquisition device circuit diagram of Intelligent household central control system；
Fig. 3 is video acquisition module block diagram；
The receiving terminal circuit figure of the voice acquisition device of Fig. 4 Intelligent household central control system；
Fig. 5 is the AC-battery power source power supply device block diagram of intelligent domestic system；
Fig. 6 is the voltage collection circuit in AC-battery power source power supply device；
Fig. 7 is the structured flowchart of the DC/DC converter of AC-battery power source power supply device；
Fig. 8 is infrared module block diagram；
Fig. 9-12 is the structural representation of the application bracelet；
Figure 13 is the schematic diagram of the table body of the bracelet of the application；
Figure 14 is the wireless Mac circuit of the bracelet of the application, the circuit diagram of solar charging circuit entirety.
Detailed description of the invention
Below in conjunction with the drawings and the specific embodiments, the invention will be further described.
Traditional ecosystem is the structurally ordered system being combined into by biological and abiotic interaction.And at electronic technology field, particularly in Smart Home technical field, if there is also the concept of the ecosystem？Here the application defines the concept of the Smart Home ecosystem: the Smart Home ecosystem is the structurally ordered system being combined into by the interaction of various electronic functional modules, and it is the mankind or other animal one intelligentized adjustable environment of offer.
It is illustrated in figure 1 intelligent domestic system structured flowchart, i.e. Smart Home ecosystem structure block diagram, it includes instruction acquisition array, instruction reception unit, processing and control element (PCE), instruction sending module, communication module, performance element, information acquisition unit, memory cell etc..
The instruction acquisition unit that wherein the application proposes can use the modes such as phonetic order collection, button collection, or limbs identification.
Instruction reception unit, its communication mode can use the modes such as wired, wireless, sound wave, infrared, bluetooth to communicate.
Instruction sending module, can use infrared, bluetooth, wired or other radio transmission modes.
Communication module, can use the modes such as infrared, wifi, wire relay broadcasting.
Performance element can be to use the mode such as electronic switching device or relay.
Information gathering can include the information such as sound, video, environment temperature, humidity, illumination.
Infrared module: infrared module is made up of single-chip microcomputer, infrared receiver transmitter, electric power management circuit.Single-chip microcomputer is responsible for the system of whole remote controller and is controlled.Single-chip microcomputer, as main control chip, carries out keyboard scan, according to user's instruction by input through keyboard, is respectively completed learning remote control code；Control DSP to carry out voice training, play back, identify；Recognition result is converted into corresponding remote control mode, is launched by infraluminescence pipe.By the RS232 serial protocol communication of standard between single-chip microcomputer and DSP.
Central processing unit: use DSP Processor, DSP Processor connects flash memory (FLASH), codec (CODEC).Wherein DSP is the core of whole sound identification module, is responsible for speech recognition (using existing speech recognition software), encoding and decoding speech, and the Read-write Catrol of FLASH.The advantage of DSP is fast operation, memory headroom is big, data exchange velocity is fast, can be used to realize the algorithm of complexity, improves discrimination, reduces reaction time delay, obtains higher recognition performance.Dsp chip selects the AD2186L of Analog Devices company, and it has a characteristic that 1. arithmetic speed reaches 40MIPS, and is efficient dull cycles per instruction；2. providing the ram in slice of 40K byte, wherein 8K word (16Bit/ word) is data RAM, and 8K word (24Bit/ word) is program RAM, the maximum memory block up to 4 Mbytes, is used for storing data or program；3. 3.3V operating voltage, has multiple battery saving mode.AD2186L can complete the algorithm the most relevant to voice signal, is suitable for again the remote controller using battery to make the energy.FLASH and CODEC selects the chip of 3.3V operating voltage.FLASH is the AT29LV040A (4M Bit) of American ATMEL, it is as the memory of system, it is mainly used in depositing herein below: the parameter needed for suggestion voice synthesis, the code-book data after particular person training, the application program of dsp system and study and remote control mode data.CODEC selects the TLV320AC37 of American TI Company, is used for carrying out A/D, D/A conversion, encoding and decode.
The application with voice collecting bracelet, including table body 1 and watchband, table body arranges inner chamber, is provided with wireless Mac circuit and the solar charging circuit powered for wireless Mac circuit in inner chamber,
Being provided with rectangular channel 1-4 on described table body, be provided with routing hole 1-5 in rectangular channel 1-4, solar charging circuit includes that solar energy electroplax, solar energy electroplax are arranged in rectangular channel 1-4；
The MIC through hole 1-2 for installing microphone it is provided with on described table body；
Described table body side surface is provided with a day line three-way hole 1-5.
In technique scheme, described watchband includes interior band 2-2, in addition 2-1, and interior band 2-2 is provided with fixing hole 2-4, and tyre is provided with the buckle 2-5 coordinated with fixing hole 2-4.
In technique scheme, described table body 1 is provided with shift knob 1-3.
Circuit operation principle is summarized as follows:
Triode Q1 is Switching Power Supply pipe, and it and T1, R1, R3, C2 etc. form self-excited oscillation circuit.After input power, electric current is activated resistance R1 and flows to the base stage of Q1, makes Q1 turn on.After Q1 conducting, transformer N1 is just plus input direct voltage, its collector current Ic linear increase in N1, feedback coil N2 produces 3 positive 4 negative induced voltages, making Q1 obtain base stage is just, launches extremely negative positive feedback voltage, and this voltage injects base current through C2, R3 to Q1 makes the collector current of Q1 increase further, positive feedback produces avalanche process, makes Q1 saturation conduction.During Q1 saturation conduction, T1 stores magnetic energy by primary coil N1.
Meanwhile, induced voltage charges to C2, along with increasing of C2 charging voltage, Q1 base potential gradually step-down, when the base current of Q1 change can not meet its continue saturated time, Q1 exits entrance amplification region, saturation region.
After Q1 enters magnifying state, its collector current is declined by the maximum before magnifying state, produces 3 negative 4 positive induced voltages at feedback coil N2, Q1 base current is made to reduce, its collector current reduces therewith, and positive feedback occurs avalanche process again, and Q1 ends rapidly.
After Q1 cut-off, the energy that transformer T1 stores is supplied to load, and the 5 negative 6 positive voltages that secondary coil N3 produces, after diode VD1 rectifying and wave-filtering, obtain DC voltage on C3 and charge the battery.
When Q1 ends, direct current supply defeated people voltage and N2 sensing 3 negative 4 positive voltages again through R1, R3 to C2 reverse charging, gradually step up Q1 base potential so that it is again turn on, again upset reach saturation state, circuit repeats vibration like this and goes down.
R5, R6, VD2, Q2 etc. form pressure limiting circuit, and to protect battery not to be overcharged, here as a example by 3.6V battery, it is 4.2V that its charging limits voltage.In the charging process of battery, cell voltage is gradually increasing, when charging voltage is more than 4.2V, after R5, R6 dividing potential drop, Zener diode VD2 begins to turn on, Q2 is made to turn on, the shunting action of Q2 reduces the base current of Q1, thus reduces the collector current Ic of Q1, has reached to limit the effect of output voltage.At this moment circuit stopped the large current charge to battery, with small area analysis, the voltage of battery is maintained 4.2V.
Operation principle: the operation principle of this microphone is essentially identical with common wireless microphone circuit, but line and acoustical quality are much improved.Circuit is shown in accompanying drawing 1, Q3 Yu L1, C5, C6 etc. constitute FM high-frequency oscillating circuits, adjusts L1, C5 value and can change operating frequency.C6 is the feedback capacity maintaining vibration.Microphone signal inputs from transistor base unlike the past, but is connected on emitter stage by microphone, when microphone self inductance current is with sound size variation, the operating current of Q3 also can change therewith, and Cbe variate simultaneously is held in Q3 economize on electricity, Cbe with C4 is in parallel with LC loop again after connecting, it is thereby achieved that frequency modulation.This connection of MIC completely avoid the audio signal distortion through overcoupling electric capacity, therefore, the Hz-KHz width of this microphone, and tonequality is pure, working stability, even if hand touches antenna and also do not interferes with LC frequency of oscillation.
Element selects to make: the high-frequency tube that oscillating tube Q3 selects fT > 1000MHz, Icm >=100Ma, β value is bigger, such as C6355, C6358, BFR96 etc..The Icm of 9018 only has 50mA, but can select according to reality；MIC selects the moving-coil microphone of 600 Ω, current medium-to-high grade cable microphone mostly to be this type of；L1 internal diameter is 5mm, forms around 5T with Φ 0.5mm enamel-covered wire hollow；Launch antenna and finished antenna be can be used directly, it is possible to self-control: coiler part internal diameter is 1cm, and hollow is around 15T and is elongated to 3cm, and straight extending portion is divided into 7cm, loads onto heating with pyrocondensation gum cover and forms, it is also possible to the flexible circuit conductor of an about 10cm replaces.
Installation and debugging: element installs, check errorless after, switch on power, make receiver with a pocket FM receiver.It should be noted that the VCD severe jamming reception that band radio frequency exports, therefore, it is necessary to install power switch additional to radio-frequency modulator, use AV terminal to play program.Regulation FM receiver and L1 pitch of turn, make transmitting-receiving frequency corresponding, if desired C5 changed value.The audio signal of radio output is transported to VCD by big plug or sound amplifier carries out power amplification.Transmitting range and wireless sensitivity have much relations, but general all >=10 meters.
Doppler's voice acquisition device circuit diagram of Intelligent household central control system, operation principle is as shown in Figure 2, in figure, the line voltage of 220V is depressured through C4, after D2, D1 halfwave rectifier, C1 filtering, again through R6 and V1, the shunt regulating circuit voltage stabilizing of DW1, R1, C5 composition, provide operating voltage for whole circuit.V2 and surrounding component thereof form micro-wave resonator circuit, and electric wave is launched by circular loop antenna, and circular loop antenna is also the reception antenna of reflection electromagnetic wave simultaneously, and R20 is the load resistance of V2 difference frequency signal, and it sets up the operating point of this grade jointly with R5.V3 emitter-follower plays impedance transformation effect, reduces the rear class impact on microwave oscillation stage gain.This circuit with one piece of LM324 complete the amplification to prime signal, compare, light-operated, delay function, IC1D forms a low pass amplifying circuit, filter 50Hz disturb signal.The input current potential of IC1D is provided by the dividing potential drop of resistance R14, R13, and its resistance is equal, and partial pressure value is the half of supply voltage.{ change with input terminal voltage on 1/2nd supply voltages of the output voltage of 14} pin changes output up and down.IC1A, R15, R17, C7 form a Floating comparator, the current potential of input by IC1D 14} pin voltage is determined, and the dividing potential drop of R15 and R17 be added in IC1A 2., 3. between pin.Time static, 2. pin voltage is higher than 3. pin voltage, output 1. pin output low level.During prime output alternating signal, 2. pin is by C7 equal to AC earth, and 2. AC signal be added to, 3. between pin, after comparing, and 1. pin output square-wave signal.IC1C, D3, R10, C6 form delay circuit, and wireless Mac circuit is under conducting state, 7. pin output high level, D3 ends, 9. the pin effect by R10,9. will pull into high level by pin, the in-phase input end of the IC1C dividing potential drop by R12, R8, the resistance of R8 is the twice of R12, this voltage is 2/3rds of supply voltage, because the voltage of reverse input end is higher than the voltage of in-phase input end, 8. pin output low level, controllable silicon ends without trigger voltage, and wireless Mac circuit does not works.If the 7. unexpected step-down of pin current potential, D3 turns on, and C6 charges rapidly, and 9. pin pulls into low level because of under 7. pin level, and 9. pin voltage is less than 10. pin voltage, 8. pin output HIGH voltage, and controllable silicon is triggered conducting, the work of wireless Mac circuit.After 7. pin voltage recovers high potential, 9. the voltage of pin keeps low level under the effect of C6, and C6 is discharged by R10,9. pin voltage raises, and when the voltage of 9. pin exceedes the voltage of 10. pin, 8. the level reversion of pin becomes low level, controllable silicon loses trigger voltage, and wireless Mac circuit does not works.The above-mentioned discharge time of C6, it is simply that the time of wireless Mac circuit delay cut-off.1. the magnitude of voltage that the square-wave signal of pin output is added on 6. pin by R16, when the R16 pressure value 5. pin voltage more than IC1B, can make output pin 7. invert, and wireless Mac circuit turns on.Resistance R7 be one faint every level positive feedback resistor, make after the most 8. pin becomes high level, 8. the high voltage of pin makes the in-phase input end voltage of IC1D raise, 1. pin voltage raises, 7. pin voltage step-down, strengthen the negative pulse width of 7. pin, make C6 have enough charging intervals, thus ensure that the uniformity of wireless Mac circuit conducting time delayed turn-off.
Wireless Mac circuit
MIC is Electret condenser microphone, and its effect senses the weak vibration of sound wave in air exactly, and exports the signal of telecommunication as sound variation rule.What our station was selected is the higher microphone of sensitivity, typically can export the audio signal of more than tens millivolts, and this signal be enough to modulate the frequency of the high-frequency oscillation signal of next stage.Note: microphone has dividing of both positive and negative polarity, and what general and shell communicated is negative pole.R31 is the biasing resistor of MIC electret microphone, has had this resistance, and microphone could export audio signal, this is because MIC microphone is internal itself a pole field effect transistor amplification circuit, for effects such as impedance matching and raising fan-out capabilities.C15 is that audio signal couples electric capacity, by the sound signal of telecommunication special delivery of microphone sensing output to next stage.On the one hand C12 is the base stage filter capacitor of triode Q, filters high-frequency cacophony, and on the other hand allowing the high frequency current potential of triode Q is 0, and for the high-frequency circuit of more than 50MHz, triode Q is a common-base amplification circuit, and this is finally to form the basis vibrated.Because the basic condition of oscillating circuit is exactly to possess certain gain, possesses the feedback (usually positive feedback) of appropriate phase besides.R32 is the base biasing resistor of triode Q, provides a less base current to triode Q, and triode Q arrived R33 by having a bigger emitter current.Owing to the function of current in R32, R33 can produce pressure drop on each self-resistance and interact, result meeting automatic stabilisation is in a certain numeric state, here it is emitter follower.R33 is the emitter resistance of triode Q, plays the effect of stable DC operating point here, and C13 also constitutes high-frequency signal load resistance effect, is also a part for whole high frequency oscillation circuit.C18 and L forms shunt-resonant circuit, plays the Main Function selecting frequency of oscillation, changes the capacity of C18 or changes the shape (including the number of turns) of L, in that context it may be convenient to changing tranmitting frequency.C17 is high-frequency signal output coupling capacitor in order to allow high-frequency signal become radio-wave radiation aerial to sky.Therefore, antenna is preferably hard the most upwards, and length is preferably equal to radio wave frequency wavelength (or integral multiple), and surrounding should be open, does not have metal object to stop.
Illustrating: wavelength changes equal to the inverse of frequency, frequency, and wavelength also can change, then say, the concrete length of antenna is also relevant with circuit output impedance, antenna thickness etc., in the case of the sparetime, at will connects one section of electric wire just.If (in order to pursue farthest transmitting range, everybody can do the trials of this respect voluntarily, and our station element bag is tested through our station technical staff, and effect can be easily reached beyond 50 meters.) C16 is feedback capacity, the key element of circuit starting of oscillation is exactly it.When analyzing the high frequency state of this circuit, colelctor electrode is output, and emitter stage is input, and output signal is added to input by C16, produces strong positive feedback, naturally just produces vibration.This namely the most described in book Colpitts oscillation circuit.C11, C14 are power filtering capacitors, provide loop to AC signal, reduce the AC internal Resistance of power supply.
Voice signal receiver module
Voice signal receiver module operation principle by input circuit, i.e. selection circuit, or claim signal behavior that tuning circuit sends aerial many radio broadcasting stations one of them, give mixting circuit.The frequency of input signal is become intermediate frequency by mixing, but its amplitude Changing Pattern does not changes.The frequency of the high-frequency signal no matter inputted how, and the frequency after mixing is fixing, and China is defined as 465KHZ.Intermediate frequency amplitude-modulated signal is amplified to the size required by wave detector by intermediate frequency amplifier.By wave detector, the audio signal entrained by intermediate frequency amplitude-modulated signal is taken off, give preposition audio amplifier of loweing.Detection audio signal out is carried out voltage amplification by preposition low-frequency amplifier.
Induction coil T1, trimming capacitor C A etc. in Fig. 4, form resonance circuit, and according to varying in size of CA, resonance, in different frequencies, obtains the radio signal of this frequency.Triode VT1 has amplification to the signal obtained, and the output electric current of amplification exports from colelctor electrode.Inductance T2, trimming capacitor C B and triode VT1 form local-oscillator circuit, owing to trimming capacitor C A, trimming capacitor C B are linkages, and the high 465KHz of frequency of the resonance circuit that local oscillation frequency always forms than induction coil T1, trimming capacitor C A.Triode VT1 also plays the effect of mixing: its emitter stage oscillation signals according to set specific frequency signal modulation (multiplying) of the resonance circuit input of induction coil T1, trimming capacitor C A composition, can have the compositions such as difference frequency and the frequency of the resonant frequency that local oscillation frequency forms with triode VT, trimming capacitor C A in collector current.Wherein difference frequency is equal to 465KHz.Coil T3, coil T4 are antiresonant circuits, and resonant frequency is all 465KHz, and signal exports next stage by the secondary coil of transformer.Triode VT2, triode VT3 play 465kHz signal (intermediate-freuqncy signal) voltage amplification effect.Additionally triode VT3 is due to special biasing, also acts the effect (obtaining the envelope of amplitude-modulated signal) of detection.The effect of electric capacity C4-5 is to filter the intermediate frequency component in rectified signal, it is thus achieved that audio signal.Triode VT4 amplifies for audio signal voltage.
As shown in Figure 3 for video acquisition module, the mentality of designing of native system is to obtain vision signal by the video frequency pick-up head of simulation, then uses modulus conversion chip SAA71 11A that the pal mode vision signal of simulation is converted to the digital video signal of YUV4:2:2.Design uses fpga chip EP1C6Q240C8 as coprocessor, complete the caching of vision signal and the synthesis of frame of video, the integrality of frame of video is realized by the ping-pong structure of double RAM, and after the pretreatment completing video data, video data is passed in DSP, complete specific video processnig algorithms (such as compression etc., be existing conventional treatment algorithm), finally the video data processed be transmitted and store.Meanwhile, primary processor DSP is also responsible for video capture processor is carried out initial configuration.Its system hardware structure is as shown in Figure 3.
The important step of video acquisition system, it is common that outside optical signal is converted into the signal of telecommunication, then by special Video Quality Metric chip, is converted to digital video signal by the vision signal of simulation.The application uses the high performance video analog-digital conversion ic chip SAA7111A of analog cmos camera and Philips company.
AA7111A is a high performance video input processing chip of Philips company.It has four road analog video signal inputs, can input 4 road CVBS or 2 road S-video (Y/C) signals, it is also possible to programming selects four video input Zhong mono-tunnels, road or two-way to form different mode of operations；Row synchronization, the monitoring automatically of field sync signal can be realized, separate, or field frequency 50Hz or 60Hz detects automatically, and can automatically switch between PAL-system and INTSC system, the difference input luminance signal of standard, colour difference signal can be processed, it is achieved control in real time in the sheet of brightness, colourity and saturation degree simultaneously；Register in sheet can be configured by the I2C EBI in SAA7111A.It has 32 control registers, therein 22 able to programme；This device is output as 16 V.PO buses, and output format has 12 YUV4:1:1,16 YUV4:2:2,8 CCIR-656,16 565RGB and the 888RGB of 24；Output signal can provide the multiple synchronization signal such as sampling clock, row synchronization, field synchronization.
Video front processes mould, and the video data volume after digitlization is the hugest.In order to ensure integrality and the real-time of video data, the system specialized designs front end processing block of video.Its major function has been the caching of video data, the synthesis of frame of video, ping-pong operation and the communication with DSP.Owing to can repeatedly program inside FPGA, system can be made to simplify, reduce board area, it is easy to safeguard, upgrading is convenient, and therefore, the EP1C6Q240C8 that there is employed herein ALTERA processes function to complete video front.
In order to ensure the real-time of video acquisition system, this system uses the table tennis mechanism of double RAM.Ping-pong operation use in FPGA timing Design is quite varied, is a kind of typically with the design philosophy of area throw-over degree.This structure is by data flow point being fitted on two data buffer zones during input data selection unit etc. by input traffic.At the 1st buffer circle, by the data flow cache of input to data buffering module 1；At the 2nd buffer circle, then by input data selection unit switching by input data flow cache to data buffering module 2, after the data in the 1st cycle simultaneously data buffering module 1 cached are by the selection of output data selection unit, deliver to operation processing unit and process；Hereafter at the 3rd buffer circle, the input of switch data and output buffer module again.So circulation, goes round and begins again.
Video back-end processes mould, and native system uses, the high-performance of TI company, low-power consumption fixed-point DSP chip TMS320VC5509A, and its internal master clock operating frequency reaches as high as 200MHz, the highest 400MIPS of processing speed；On the sheet of this DSP, RAM is relatively big, including DARAM and 96K × 16,32K × 16 SARAM, and memory space on the sheet of 128K × 16 altogether；Its On-Chip peripheral enriches, including real-time clock RTC, 10 ADC, MCBSP interfaces, USB high-speed interfaces (speed is 12Mb/s), also MMC/SD (multimedia card) interface, I2H interface etc.；This DSP Processor is low voltage power supply, uses the core voltage of 1.6V.The I/O voltage of 3.3V, low in energy consumption reaches 0.2mW/MIPS.
DSP, as the primary processor of video acquisition system, mainly completes the real-time process of each class interface and the configuration of peripheral hardware and video.Including clock generator (PLL), I2C EBI, EMIF module, USB interface etc..
Each class interface only has co-ordination, just can ensure the properly functioning of system.Wherein clock generator is responsible for the system work clock that crystal oscillator clock frequency multiplication is 200MHz of outside 24MHz: I2C bus is responsible for carrying out video capture processor SAA7111A initial configuration: USB interface is responsible for and host computer communication, to realize the transmission of data.
In view of the limitation of ROM on the huge of video data and DSP sheet, native system extends the SDRAM and the FLASH of one piece of 256K × 16bit of one piece of 4M × 16bit outside DSP.Wherein SDRAM is mapped in CE2, CE3 space of DSP, and FLASH is mapped in CE1 space.Owing to Peripheral Interface configuration is the most complex, therefore employ Support Library function (CSL) on the sheet of TI company, to simplify the configuration of user interface.
Typically all can there is a lot of redundancy (temporal redundancy, spatial redundancies etc.) in video data, therefore there is the necessity of compression.The main purpose of Video coding is exactly on the premise of ensureing reconstruction quality, video information is characterized with the fewest bit number, remove the multiple redundancy properties that vedio data itself has, such as spatial redundancy, time redundancy, mental visual redundancy and entropy code redundancy etc. as far as possible.Common compression standard has JPEG, MPEG-1, MPEG-2, H.261 and H.263 etc..These algorithms are the most complex, and the data volume of process is the hugest.And use internal structures DSP such as Harvard bus and pile line operation to have huge advantage in the realization of video processnig algorithms.The programming of video algorithm and debugging can complete under CCS (code composer studio) 2.0 environment, and C language can be used to realize, so beneficially cross-platform transplanting, optimize and upgrade.
As shown in Figure 5 for AC-battery power source power supply device:
Solar units: include solar cell, solar cell connects DC/DC converter；
City's electric unit: city's electric unit includes civil power is converted to galvanic AC/DC converter；
Charging control circuit: control switching solar units, city's electric unit and the connection of battery；
Battery: store electric energy and for loading energy supply；
DSP control unit: according to the detection information of detector unit, control the duty of charging control circuit；
Detector unit: include the solar cell current sensing means for detecting solar cell size of current, the battery tension detector unit of detection battery tension size.
Described battery tension detector unit includes: described battery tension detector unit includes: resistance R1 mono-terminates battery, resistance R2 mono-terminates benchmark and compares voltage, the resistance R1 other end connects the anode of diode D1, the resistance R2 other end connects the anode of diode D2, the negative electrode of diode D1 and the negative electrode of diode D2 are all connected with resistance R3, the resistance R3 other end connects electric capacity C1, electric capacity C1 ground connection.
Solar units is solar cell permutation.
Described DC/DC converter output terminal connects inversion unit, and direct current is converted to alternating current output by inversion unit.
Described inversion unit output is provided with inversion unit output Current Voltage detector unit, and inversion unit output Current Voltage detector unit connects DSP control unit.
DC/DC converter includes that filter circuit is recorded in the inverter circuit being linked in sequence, high frequency transformer, rectification circuit, output, and the driver element of inverter circuit includes pulse control circuit, and pulse control circuit uses pulse width modulation chip TL494.Inside solves current regulator, pulsewidth modulation and maximum current simultaneously and limits; some additional monitoring defencive functions it are also provided with in chip; making chip have stronger antijamming capability and higher reliability, the control system outward element constituted with this chip is less, simple in construction.
Battery tension detector unit includes as described in Figure 6: described battery tension detector unit includes: resistance R1 mono-terminates battery, resistance R2 mono-terminates benchmark and compares voltage, the resistance R1 other end connects the anode of diode D1, the resistance R2 other end connects the anode of diode D2, the negative electrode of diode D1 and the negative electrode of diode D2 are all connected with resistance R3, the resistance R3 other end connects electric capacity C1, electric capacity C1 ground connection.
System includes that solar battery suppling circuit, mains-supplied circuit, battery and charging circuit, single-chip microcomputer and peripheral circuit thereof etc. are constituted. the electric current of solar cell is when current detection circuit detection is more than 30mA (sunlight is sufficiently strong), it is solar cell power supply after DC/DC converts that Single-chip Controlling charging controls to access power supply, this power supply charges to battery. when single-chip microcomputer detects that sunlight is more weak, detect battery tension again, if battery tension is sufficiently high, having battery to power to the load, system stops charging to battery；If battery tension is relatively low, civil power charges to battery through charging control circuit after AC/DC converts, then is powered to the load by battery. and single-chip microcomputer and peripheral circuit thereof include PICI6C71, key circuit, warning circuit and liquid crystal display circuit. the warning of warning system operation irregularity, storage battery under-voltage warning etc. use the information such as liquid crystal display circuit display solar cell electric current, battery tension, working state of system for saving system power dissipation.
Described battery tension detector unit includes: resistance R1 mono-terminates battery, resistance R2 mono-terminates benchmark and compares voltage, the resistance R1 other end connects the anode of diode D1, the resistance R2 other end connects the anode of diode D2, the negative electrode of diode D1 and the negative electrode of diode D2 are all connected with resistance R3, the resistance R3 other end connects electric capacity C1, electric capacity C1 ground connection.
Wherein voltage Vi and Vb is battery tension respectively and benchmark compares voltage, it is used for comparing and calculating accumulator voltage swing, resistance R1 draws I/O-VL pin with diode D1 tie point, resistance R1 draws I/O-VB pin with diode D1 tie point, I/O-VL pin, I/O-VB pin the two I/O is used to effectively or inefficacy input voltage, when I/O-VL is as output, and during output zero, battery tension will not charge to electric capacity, such that it is able to make that reference voltage is interference-free to be charged on electric capacity, resistance R3 and electric capacity C1 forms RC circuit, its effect makes the voltage of charging have the time risen exactly, it is beneficial to single-chip microcomputer detection.
The Cleaning Principle of this circuit is, when detecting battery tension, I/O-VL pin is set to input pattern, making I/O-VL pin is high-impedance state, battery current is stoped to flow into I/O mouth, it is made to charge to electric capacity C1, pin I/O-VB is set to output mode simultaneously, and export zero, short circuit reference voltage power supply, ensure when storage battery is pressed in charging, do not disturbed by reference voltage, when the threshold that the voltage on electric capacity is charged to single-chip processor i/o mouth differentiates voltage, record this period of time T1, make reference voltage that electric capacity to be charged also with above method, when the voltage on electric capacity rises to the differentiation threshold voltage of I/O mouth, record T2 during this period of time.Since being aware of two voltages charging interval on identical RC circuit, it is possible to just can obtain the size of voltage according to the charge formula Vc=V (1-E (-T/RC)) of RC circuit.
If Fig. 7 is DC-DC converter integrated circuit, this DC/DC voltage changer is made up of main circuit, sample circuit, control circuit, drive circuit；The main circuit unit of Switching Power Supply, sample circuit unit, control circuit unit, drive circuit unit composition closed-loop control system, is the automatic adjustment of relative output voltage.Control circuit unit, with SG3525 as core, accurately controls drive circuit, changes the driving signal of drive circuit, reaches the purpose of voltage stabilizing.
The kind of DC-DC power inverter is a lot.Whether isolate point according to input/output circuitry, non-isolation type and the big class of isolated form two can be divided into.The DC-DC converter of non-isolation type can be divided into again buck, boost type, polarity inversion formula etc. several；The DC-DC converter of isolated form can be divided into again single-ended forward type, single-ended flyback, both-end half-bridge, both-end full-bridge etc. several.
Below it is only the representative embodiment in the numerous concrete range of application of the present invention, protection scope of the present invention is not constituted any limitation.All technical schemes using conversion or equivalence to replace and formed, within the scope of all falling within rights protection of the present invention.
Claims (9)
1. the Smart Home ecosystem of a more voice signal pickup assembly, it is characterised in that including:
Phonetic order collecting unit: include Doppler's leading portion voice signal acquisition device and voice collecting bracelet, for receiving the phonetic order being used for, including Doppler's voice acquisition device and signal Doppler's leading portion voice signal acquisition device for gathering voice signal；
AC-battery power source electric supply installation: include solar units and city's electric unit, power for whole system；
Central processing unit: be used for processing coordination and control each equipment；
Wifi module: communicate for wifi；
Infrared module: include single-chip microcomputer, infrared receiver transmitter and the keyboard of input instruction, communicated by RS232 serial ports with central controller；
Context detection module: be used for detecting environmental information, including Temperature Humidity Sensor, optical sensor, Smoke Sensor；
Electrical equipment control module: include can EBI, can EBI connects motorized window control module, exhaust fan control module；
Video monitor unit: include the simulation camera being linked in sequence, video a/d converter, FPGA processor, DSP Processor, described FPGA processor connects SRAM1 memory and SARM0 memory, DSP Processor connects video a/d converter by I2C bus, and DSP Processor connects storage device；
Described phonetic order collecting unit, AC-battery power source electric supply installation, Wifi module, infrared module, context detection module, electrical equipment control module, video monitor unit are all connected with central processing unit.
The Smart Home ecosystem of a kind of more voice signal pickup assembly the most according to claim 1, it is characterised in that: Doppler's leading portion voice signal acquisition device includes,
Signal input circuit: be used for receiving radio signal, including the resonance circuit of coil T1 and trimming capacitor C A composition, coil T1 includes a winding and Secondary Winding, and one time winding two ends connect trimming capacitor C A；
Mixting circuit: the radio signal received is become intermediate frequency, the emitter stage oscillation signals according including triode VT1, triode VT1 can obtain intermediate-freuqncy signal to the signal modulation of the resonance circuit input of coil T1, trimming capacitor C A composition at colelctor electrode；
IF amplifier circuit: intermediate frequency amplitude-modulated signal is amplified to the size required by detecting circuit；
Detecting circuit: the audio signal entrained by intermediate frequency amplitude-modulated signal taken off, gives preposition audio amplifier of loweing；
Preposition audio amplifier of loweing: detection audio signal out is carried out voltage amplification；
Power module: provide power supply, uses electric capacity half-wave reduction voltage circuit.
The Smart Home ecosystem of a kind of more voice signal pickup assembly the most according to claim 1, it is characterized in that: voice collecting bracelet includes table body (1) and watchband, it is characterized in that: table body arranges inner chamber, wireless Mac circuit and the solar charging circuit powered for wireless Mac circuit it is provided with in inner chamber
Being provided with rectangular channel (1-4) on described table body, be provided with routing hole (1-6) in rectangular channel (1-4), solar charging circuit includes that solar energy electroplax, solar energy electroplax are arranged in rectangular channel (1-4)；
The MIC through hole (1-2) for installing microphone it is provided with on described table body；
Described table body side surface is provided with a day line three-way hole (1-5)；
Described watchband includes interior band (2-2), in addition (2-1), and interior band (2-2) is provided with fixing hole (2-4), and tyre is provided with the buckle (2-5) coordinated with fixing hole (2-4)；
It is provided with shift knob (1-3) on described table body (1).
The Smart Home ecosystem of a kind of more voice signal pickup assembly the most according to claim 1, it is characterised in that: Doppler's voice acquisition device includes,
System power supply: working power is provided；
Micro-wave resonator circuit: to emission and reception electromagnetic wave, the displacement signal moved by object is converted into the corresponding signal of telecommunication；
Low pass amplifying circuit: signal is amplified and filters 50Hz and disturbs signal；
Floating comparator: output low level time static, output square-wave signal during prime output alternating signal；
Delay circuit: when receiving square-wave signal, drives rear class wireless Mike unit,
Wireless Mike's unit: convert voice signals into wireless signal；
Enter in induction range when there being mobile object, the displacement signal moved by object is converted into the corresponding signal of telecommunication and passes through after low pass amplifying circuit filters by driving delay circuit to work through Floating comparator output square-wave signal, delay circuit drives rear class wireless Mike cell operation, and the voice messaging collected is converted to wireless signal by wireless Mike's unit.
The Smart Home ecosystem of a kind of more voice signal pickup assembly the most according to claim 1, it is characterised in that: AC-battery power source electric supply installation includes,
Solar units: include solar cell, solar cell connects DC/DC converter；
City's electric unit: city's electric unit includes civil power is converted to galvanic AC/DC converter；
Charging control circuit: control switching solar units, city's electric unit and the connection of battery；
Battery: store electric energy and for loading energy supply；
DSP control unit: according to the detection information of detector unit, control the duty of charging control circuit；
Detector unit: include the solar cell current sensing means for detecting solar cell size of current, the battery tension detector unit of detection battery tension size.
6. according to the Smart Home ecosystem of the arbitrary described a kind of more voice signal pickup assembly of claim 1-4, it is characterised in that: it is connected between described dsp controller and central processing unit and has power management module.
The Smart Home ecosystem of a kind of more voice signal pickup assembly the most according to claim 3, it is characterized in that: solar energy electroplax that described solar charging circuit includes being linked in sequence, self-excited oscillation circuit, high frequency boosting unit, rectification circuit, pressure limiting circuit, filter circuit
Described high frequency boosting unit uses high frequency transformer, and high frequency transformer includes the coil N1 and coil N2 of primary side, second siding ring N3；
Self-excited oscillation circuit includes triode Q1, be sequentially connected with electronics R1, resistance R3, electric capacity C2, electric capacity C2 meets the coil N2 of high frequency transformer, the colelctor electrode wiring circle N1 of triode Q1, grounded emitter.
The Smart Home ecosystem of a kind of more voice signal pickup assembly the most according to claim 7, it is characterized in that: pressure limiting circuit includes triode Q2, resistance R5, resistance R6, diode VD2, the connection end of the colelctor electrode connecting resistance R1 and resistance R3 of triode Q2, base stage is by the common port of diode VD2 connecting resistance R5 and resistance R6, resistance R5 and resistance R6 connects and is followed by coil N3 two ends, and described filter unit includes the electric capacity C3 of wiring circle N3 output；Described rectification circuit includes diode D1, diode D1 wiring circle N3 positive output end.
nullThe Smart Home ecosystem of a kind of more voice signal pickup assembly the most according to claim 3，It is characterized in that: wireless Mac circuit includes resistance R7、Electric capacity C4-C8、Inductance L1-L2、Switch S1、Power supply、Triode Q3，Positive source connecting valve S1 the first end，Second end of the switch S1 base stage by electric capacity C4 connecting triode Q3，The base stage of triode Q3 connects biasing resistor R7，The other end of biasing resistor R7 connects power supply by switch S1，The colelctor electrode of triode connects electric capacity C5、Inductance L1、Electric capacity C6，Electric capacity C5、The other end of inductance L1 connects power supply by switch S1，The emitter stage of the other end connecting triode Q3 of electric capacity C6，The emitter stage of triode connects microphone MIC，Microphone MIC connects power cathode，Electric capacity C8 is connected to both ends of power,The emitter stage of triode Q3 connects electric capacity C7，Electric capacity C7 connects inductance L2，Inductance L2 connects antenna.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105137797A (en) * | 2015-08-31 | 2015-12-09 | 成都科创城科技有限公司 | Smart home ecological system with multiple voice signal collection devices |
| CN107577181A (en) * | 2017-08-30 | 2018-01-12 | 苏州麦喆思科电子有限公司 | A kind of civil power household electricity control system using conjunction inside back cover pole pipe |
| US10448762B2 (en) | 2017-09-15 | 2019-10-22 | Kohler Co. | Mirror |
| US10663938B2 (en) | 2017-09-15 | 2020-05-26 | Kohler Co. | Power operation of intelligent devices |
| US10887125B2 (en) | 2017-09-15 | 2021-01-05 | Kohler Co. | Bathroom speaker |
| US11099540B2 (en) | 2017-09-15 | 2021-08-24 | Kohler Co. | User identity in household appliances |
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2015
- 2015-08-31 CN CN201520664814.5U patent/CN205427467U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105137797A (en) * | 2015-08-31 | 2015-12-09 | 成都科创城科技有限公司 | Smart home ecological system with multiple voice signal collection devices |
| CN107577181A (en) * | 2017-08-30 | 2018-01-12 | 苏州麦喆思科电子有限公司 | A kind of civil power household electricity control system using conjunction inside back cover pole pipe |
| US10448762B2 (en) | 2017-09-15 | 2019-10-22 | Kohler Co. | Mirror |
| US10663938B2 (en) | 2017-09-15 | 2020-05-26 | Kohler Co. | Power operation of intelligent devices |
| US10887125B2 (en) | 2017-09-15 | 2021-01-05 | Kohler Co. | Bathroom speaker |
| US11099540B2 (en) | 2017-09-15 | 2021-08-24 | Kohler Co. | User identity in household appliances |
| US11314214B2 (en) | 2017-09-15 | 2022-04-26 | Kohler Co. | Geographic analysis of water conditions |
| US11314215B2 (en) | 2017-09-15 | 2022-04-26 | Kohler Co. | Apparatus controlling bathroom appliance lighting based on user identity |
| US11892811B2 (en) | 2017-09-15 | 2024-02-06 | Kohler Co. | Geographic analysis of water conditions |
| US11921794B2 (en) | 2017-09-15 | 2024-03-05 | Kohler Co. | Feedback for water consuming appliance |
| US11949533B2 (en) | 2017-09-15 | 2024-04-02 | Kohler Co. | Sink device |
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