CN205334083U - Adopt collection system of intelligent house hybrid power source power supply of wireless bracelet that charges - Google Patents
Adopt collection system of intelligent house hybrid power source power supply of wireless bracelet that charges Download PDFInfo
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Abstract
Adopt collection system of intelligent house hybrid power source power supply of wireless bracelet that charges 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, IPVA -VMU, IPVA -VMU includes 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, 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 adopt the harvester that the Smart Home energy mix of wireless charging bracelet is powered。
Background technology
Proposition along with domestic " the Internet+" theory, " the Internet+" a period of time, every field at home started upsurge, and compare over the today being greatly improved in people's material and cultural life, the intelligence degree of the many living environments 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 obtains new development under " the Internet+" theory, " the Internet+" it represent a kind of new social formation, namely give full play to the Internet optimization in configuration of social resources and be integrated into using, by the innovation achievement depth integration of the Internet in economy, among each field of society, promote innovation and the productivity of the whole society, form the economic development neomorph of facility and implementation tool based on the Internet widely。
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 (UnitedTechnologiesBuildingSystem) 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, from then on opened the whole world 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, also the life of let us increases more enjoyment simultaneously。The coming five years we will welcome the first year that Smart Home develops rapidly。
Smart Home, or title intelligent dwelling, with house for platform, have both building, network service, information household appliances, equipment automatization, the living environment of efficient, comfortable, safe and convenient, the environmental protection that collecting system, structure, service, management are 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。
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。
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 speech recognition technology instruction identification in intelligent domestic system is widely used, therefore the pickup of the phonetic control command of premises is just 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 when pickup, 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 the harvester adopting the Smart Home energy mix of wireless charging bracelet to power, its structurally ordered system being combined into that can interact with other various electronic functional modules of intelligent domestic system, it provides an intelligentized adjustable environment for the mankind or other animal。
In order to achieve the above object, the present invention adopts the following technical scheme that
Adopt the harvester that the Smart Home energy mix of wireless charging bracelet is powered, it is characterised in that including:
Voice collecting bracelet: for receiving the phonetic order being used for, including bracelet and 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；
Video monitor unit: include the simulation photographic head being linked in sequence, video a/d converter, FPGA processor, dsp processor, described FPGA processor is connected to SRAM1 memorizer and SARM0 memorizer, dsp processor connects video a/d converter by I2C bus, and dsp processor is connected to storage device；
Described phonetic order collecting unit, AC-battery power source electric supply installation, video monitor unit are all connected with central processing unit；
Table body is provided with inner chamber (1-5) and bonnet (3), inner chamber (1-5) is divided into induction cavity (1-4-1) and circuit installation cavity (1-4-2), it is provided with winding coil LO in induction cavity (1-4-1)
Circuit installation cavity (1-4-2) is inner is provided with wireless Mac circuit and the solar charging circuit powered for wireless Mac circuit；
Described table body (1) is provided with rectangular channel (1-1), routing hole (1-2) it is provided with in rectangular channel (1-1), solar charging circuit includes solar energy electroplax, and solar energy electroplax is arranged in rectangular channel (1-1)；
Described table body is provided with the MIC through hole (1-6) for installing mike；
Described table body side surface is provided with a day line three-way hole (1-7)。
In technique scheme, front end receiver 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 audion VT1, audion VT1 to the signal modulation of the resonance circuit input of coil T1, trimming capacitor C A composition, can obtain intermediate-freuqncy signal 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, adopts electric capacity half-wave reduction voltage circuit。
In technique scheme, between described dsp controller and central processing unit, it is connected to power management module。
In technique scheme, AC-battery power source electric supply installation includes,
Solar units: include solaode, solaode is connected to DC/DC changer；
City's electric unit: city's electric unit includes civil power is converted to galvanic AC/DC changer；
Charging control circuit: control the connection of switching solar units, city's electric unit and accumulator；
Accumulator: storage electric energy and for load energy supply；
DSP control unit: the detection information according to detection unit, controls the duty of charging control circuit；
Detection unit: include the solaode current sensing means for detecting solaode size of current, the battery tension detection unit of detection battery tension size。
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 adopts high frequency transformer, high frequency transformer includes the coil N1 and coil N2 of primary side, second siding ring N3；Self-excited oscillation circuit includes audion Q1, be sequentially connected with electronics R1, resistance R3, electric capacity C2, electric capacity C2 connects the colelctor electrode wiring circle N1 of the coil N2 of high frequency transformer, audion Q1, grounded emitter；
In technique scheme, pressure limiting circuit includes audion Q2, resistance R5, resistance R6, diode VD2, the link of the colelctor electrode connecting resistance R1 and resistance R3 of audion 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 outfan；Described rectification circuit includes diode D1, diode D1 wiring circle N3 positive output end。
In technique scheme, wireless Mac circuit includes resistance R7, electric capacity C4-C8, inductance L1-L2, switch S1, power supply, audion 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 audion Q3 connects biasing resistor R7, the other end of biasing resistor R7 connects power supply by switching S1, the colelctor electrode of audion connects electric capacity C5, inductance L1, electric capacity C6, electric capacity C5, the other end of inductance L1 connects power supply by switching S1, the emitter stage of the other end connecting triode Q3 of electric capacity C6, the emitter stage of audion is connected to mike MIC, mike MIC connects power cathode, electric capacity C8 is connected to both ends of power, the emitter stage of audion Q3 connects electric capacity C7, electric capacity C7 connects inductance L2, inductance L2 is connected to 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, a kind of AC-battery power source power supply device adopting solar energy and civil power of this 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 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。
Three, the DC inverter of solar energy can be become alternating current by this utility model inversion unit is alternating current equipment energy supply, enhances the practicality of system power supply。
Four, this utility model adopts 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, it is prevented that solar energy electroplax is subject to crushing。
Five, 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 and 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, and therefore, the Hz-KHz width of this microphone, tonequality is pure, working stability, even if hands touches antenna without affecting LC frequency of oscillation。
Six, the bracelet of the application its adopt solar powered, the overall enhanced flying power of Intelligent bracelet, efficiently solve the high energy consumption problem of bracelet。
Accompanying drawing explanation
Fig. 1 is intelligent domestic system structured flowchart；
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 transducer of AC-battery power source power supply device；
Fig. 8 is infrared module block diagram；
Fig. 9-10 is the structural representation of the application；
Figure 11 removes internal structure sketch after bonnet for this practical new table body；
Figure 12 is the bonnet schematic diagram of the application；
Figure 13 is this utility model table body portion structure diagram；
Figure 14-15 is the inner-cavity structure sketch of the application；
Figure 16 is the circuit diagram of the wireless Mac circuit of the application, solar charging circuit entirety；
Figure 17 is the application structured flowchart。
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 ecosystem？Here the application defines the concept of Smart Home ecosystem: 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 intelligent domestic system structured flowchart as shown in figure 15, 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 element etc.。
The instruction acquisition unit that wherein the application proposes can adopt the modes such as phonetic order collection, button collection, or limbs identification。
Instruction reception unit, its communication mode can adopt the modes such as wired, wireless, sound wave, infrared, bluetooth to communicate。
Instruction sending module, can adopt infrared, bluetooth, wired or other radio transmission modes。
Communication module, can adopt the modes such as infrared, wifi, wire relay broadcasting。
Performance element can adopt the mode such as electronic switching device or relay。
Information gathering can include the information such as sound, video, ambient 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 and carry out voice training, playback, identification；Recognition result is converted to 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: adopting dsp processor, dsp processor is connected to flash memory (FLASH), codec (CODEC)。Wherein DSP is the core of whole sound identification module, is responsible for speech recognition (adopting 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 AnalogDevices 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 program RAM for data RAM, 8K word (24Bit/ word), and the maximum memory block up to 4 Mbytes is used for storing data or program；3. 3.3V running voltage, has multiple battery saving mode。AD2186L can complete the algorithm relevant at last to voice signal, is suitable for again the remote controller using battery to make the energy。FLASH and CODEC also selects the chip of 3.3V running voltage。FLASH is the AT29LV040A (4MBit) of American ATMEL, it is as the memorizer of system, it is mainly used in depositing herein below: the parameter that suggestion voice synthesis is required, 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, coding and decoding。
The application with voice collecting bracelet, including table body 1 and watchband, it is characterised in that: table body arranges inner chamber 1-5 and bonnet 3, and inner chamber 1-5 is divided into induction cavity 1-4-1 and circuit installation cavity 1-4-2,
Wireless Mac circuit and the solar charging circuit powered for wireless Mac circuit it is provided with in circuit installation cavity 1-4-2；
Being provided with rectangular channel 1-1 on described table body 1, be provided with routing hole 1-2 in rectangular channel 1-1, solar charging circuit includes solar energy electroplax, and solar energy electroplax is arranged in rectangular channel 1-1；
Described table body is provided with the MIC through hole 1-6 for installing mike；
Described table body side surface is provided with a day line three-way hole 1-7。
In technique scheme, described watchband includes interior band 2-2, in addition 2-1, interior band 2-2 is provided with fixing hole 2-4, 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 1-8。
In technique scheme, described induction cavity 1-4-1 and circuit installation cavity 1-4-2 is separated by rectangular clapboard 1-4。
In technique scheme, described bonnet is provided with card angle 3-1 and positioning convex 3-2, table body 1 inner chamber 1-5 inwall is provided with and card angle 3-1, and groove 1-3,1-3-1 that positioning convex 3-2 coordinates。
Circuit operation principle is summarized as follows:
Audion 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 for just, launching extremely negative positive feedback voltage, 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 step-down gradually, when the base current of Q1 change can not meet its continue saturated time, Q1 exits entrance amplification region, saturation region。
Q1 enters after magnifying state, and 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 transformator 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, 3 negative 4 positive voltages of direct current supply defeated people voltage and N2 sensing again through R1, R3 to C2 reverse charging, gradually step up Q1 base potential so that it is again turn on, upset reaches capacity state again, and 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 for 3.6V battery, its charging restriction voltage is 4.2V。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 reducing the collector current Ic of Q1, has reached the effect of restriction 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, and Q3 and 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, in parallel with LC loop again after Cbe and C4 series connection, it is thereby achieved that frequency modulation。This connection of MIC completely avoid the audio signal distortion through overcoupling electric capacity, and therefore, the Hz-KHz width of this microphone, tonequality is pure, working stability, even if hands touches antenna without affecting 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, and current medium-to-high grade cable microphone mostly is this type of；L1 internal diameter is 5mm, forms around 5T with Φ 0.5mm enamel-covered wire hollow；Transmitting antenna can directly use finished antenna, 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 by a pocket FM receiver。It should be noted that the VCD severe jamming reception with radio frequency output, therefore, it is necessary to install on and off switch additional to radio-frequency modulator, use AV terminal to play program。Regulate FM receiver and L1 pitch of turn, make transmitting-receiving frequency corresponding, if desired C5 is changed value。The audio signal of radio output is transported to VCD by big plug or microphone 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 through C4 blood pressure lowering, after D2, D1 halfwave rectifier, C1 filtering, then through the shunt regulating circuit voltage stabilizing of R6 and V1, DW1, R1, C5 composition, provide running voltage for whole circuit。V2 and surrounding component composition micro-wave resonator circuit thereof, 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 and R5 set up the operating point of this grade jointly。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, filters 50Hz and disturbs 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} foot changes outfan up and down。IC1A, R15, R17, C7 form a Floating comparator, the current potential of input by IC1D 14} foot voltage is determined, and the dividing potential drop of R15 and R17 be added in IC1A 2., 3. between foot。Time static, 2. foot voltage is higher than 3. foot voltage, and outfan is foot output low level 1.。During prime output alternating signal, 2. foot is by C7 equal to AC earth, and 2. AC signal is added to, 3. between foot, passes through after comparing, 1. foot output square-wave signal。IC1C, D3, R10, C6 form delay circuit, and wireless Mac circuit is under conducting state, 7. foot output high level, D3 ends, 9. the foot effect by R10,9. will pull into high level by foot, 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. foot output low level, controllable silicon triggerless voltage and end, wireless Mac circuit does not work。If the 7. unexpected step-down of foot current potential, D3 turns on, and C6 charges rapidly, and 9. foot pulls into low level because of under 7. foot level, and 9. foot voltage is lower than 10. foot voltage, 8. foot output HIGH voltage, and controllable silicon is triggered conducting, the work of wireless Mac circuit。After 7. foot voltage recovers high potential, 9. the voltage of foot keeps low level under the effect of C6, and C6 is discharged by R10,9. foot voltage raises, and when the voltage of 9. foot exceedes the voltage of 10. foot, 8. the level reversion of foot becomes low level, controllable silicon loses trigger voltage, and wireless Mac circuit does not work。The above-mentioned discharge time of C6, it is simply that the time of wireless Mac circuit delay cut-off。1. the square-wave signal of foot output is added to magnitude of voltage on 6. foot by R16, when the R16 pressure value 5. foot voltage more than IC1B, it is possible to making output pin 7. reverse, wireless Mac circuit turns on。Resistance R7 be one faint every level positive feedback resistor, make once after 8. foot becomes high level, 8. the high voltage of foot makes the in-phase input end voltage of IC1D raise, 1. foot voltage raises, 7. foot voltage step-down, strengthen the negative pulse width of 7. foot, make C6 have enough charging intervals, thus ensure that the concordance 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 the same with sound variation rule。What our station was selected is the higher microphone of sensitivity, generally can export the audio signal of more than tens millivolts, and this signal is 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 audio signal coupling electric capacity, by the sound signal of telecommunication special delivery of microphone sensing output to next stage。C12 is the base stage filter capacitor of audion Q, filters on the one hand high-frequency cacophony, and allowing the high frequency current potential of audion Q on the other hand is 0, and the high-frequency circuit for more than 50MHz, audion 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 (being usually positive feedback) of appropriate phase besides。R32 is the base biasing resistor of audion Q, provides a less base current to audion Q, and audion 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 audion 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, it is therefore an objective to aerial to sky in order to allow high-frequency signal become radio-wave radiation。Therefore, antenna preferably heavily fortified point is straight 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 is equal to the inverse of frequency, and frequency changes, and wavelength also can change, then says, it is relevant that the concrete length of antenna also exports impedance, antenna thickness etc. with circuit, in amateurish situation, 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 actually namely 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 tuning circuit signal behavior that aerial many radio broadcasting stations are sent one of them, give mixting circuit。It is mixed the frequency by input signal and becomes intermediate frequency, but its amplitude Changing Pattern does not change。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 cymoscope by intermediate frequency amplifier。By cymoscope, 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。The signal obtained is had amplification by audion VT1, and the output electric current of amplification exports from colelctor electrode。Inductance T2, trimming capacitor C B and audion VT1 form local-oscillator circuit, and owing to trimming capacitor C A, trimming capacitor C B are linkages, local oscillation frequency is 465KHz higher than the frequency of the resonance circuit of induction coil T1, trimming capacitor C A composition always。Audion 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 audion 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 transformator。Audion VT2, audion VT3 play 465kHz signal (intermediate-freuqncy signal) voltage amplification effect。Additionally audion 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。Audion VT4 amplifies for audio signal voltage。
As shown in Figure 3 be video acquisition module, the mentality of designing of native system is to obtain video signal by the video frequency pick-up head simulated, and then adopts modulus conversion chip SAA7111A that the pal mode video signal of simulation is converted to the digital video signal of YUV4:2:2。Design uses fpga chip EP1C6Q240C8 as coprocessor, complete the buffer memory of video signal and the synthesis of frame of video, the integrity of frame of video is realized by the ping-pong structure of double; two 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 convert outside optical signal to the signal of telecommunication, then pass through special video conversion chip, the video signal of simulation is converted to digital video signal。That the application adopts is the high performance video analog-digital conversion ic chip SAA7111A of analog cmos photographic head and Philips company。
AA7111A is a high performance video input processing chip of Philips company。It has four road analog video signal inputs, it is possible to 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, separation can be realized, or field frequency 50Hz or 60Hz detects automatically, and can automatically switch between PAL-system and INTSC system, difference can be inputted the luminance signal of standard, colour difference signal processes simultaneously, it is achieved control in real time in the sheet of brightness, colourity and saturation；Depositor in sheet can be configured by the I2C EBI in SAA7111A。It has 32 control depositors, therein 22 able to programme；This device is output as 16 V.PO buses, and output format has the 888RGB of 12 YUV4:1:1,16 YUV4:2:2,8 CCIR-656,16 565RGB and 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 digitized is general all very huge。In order to ensure integrity and the real-time of video data, the system specialized designs front end processing block of video。Its major function has been the buffer memory of video data, the synthesis of frame of video, ping-pong operation and the communication with DSP。Owing to can repeatedly program inside FPGA, it is possible to make system simplify, reducing board area, it is easy to safeguard, upgrading is convenient, therefore, there is employed herein the EP1C6Q240C8 of ALTERA to complete video front and processes function。
In order to ensure the real-time of video acquisition system, this system uses the table tennis mechanism of double; two RAM。Ping-pong operation use in FPGA timing Design is very extensive, is a kind of typically with the design philosophy of area throw-over degree。This structure be by input traffic by inputting data selection unit etc. time data flow point is fitted on two data buffer zones。At the 1st buffer circle, by the data flow cache of input to data buffering module 1；At the 2nd buffer circle, then by the switching of input data selection unit by the data flow cache of input to data buffering module 2, simultaneously by the data in the 1st cycle of data buffering module 1 buffer memory by, after the selection of output data selection unit, delivering 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 adopts, 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, and including real-time clock RTC, 10 ADC, MCBSP interfaces, USB high-speed interfaces (speed is 12Mb/s), also has MMC/SD (multimedia card) interface, I2H interface etc.；This dsp processor is low voltage power supply, adopts 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 configuration of each class interface and peripheral hardware and the real-time process of 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 video capture processor SAA7111A is carried out initial configuration: USB interface is responsible for and host computer communication, to realize the transmission of data。
Considering the limitation of ROM on the huge of video data and DSP sheet, native system extends the FLASH of the SDRAM and 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 general all complex, therefore employ Support Library function (CSL) on the sheet of TI company, to simplify the configuration of user interface。
Generally 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 under the premise ensureing reconstruction quality, video information is characterized with as far as possible few 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 general all complex, and the data volume of process is also very huge。And adopt the internal structure DSP such as Harvard bus and pile line operation to have huge advantage in the realization of video processnig algorithms。Programming and the debugging of video algorithm can complete under CCS (codecomposerstudio) 2.0 environment, C language can be used to realize, be so conducive to cross-platform transplanting, optimization and upgrading。
As shown in Figure 5 be AC-battery power source power supply device:
Solar units: include solaode, solaode is connected to DC/DC changer；
City's electric unit: city's electric unit includes civil power is converted to galvanic AC/DC changer；
Charging control circuit: control the connection of switching solar units, city's electric unit and accumulator；
Accumulator: storage electric energy and for load energy supply；
DSP control unit: the detection information according to detection unit, controls the duty of charging control circuit；
Detection unit: include the solaode current sensing means for detecting solaode size of current, the battery tension detection unit of detection battery tension size。
Described battery tension detection unit includes: described battery tension detection unit includes: resistance R1 mono-terminates accumulator, 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 solaode permutation。
Described DC/DC converter output terminal is connected to inversion unit, and unidirectional current is converted to alternating current output by inversion unit。
Described inversion unit outfan is provided with inversion unit output current/voltage detection unit, and inversion unit output current/voltage detection unit connects DSP control unit。
Inverter circuit that DC/DC changer includes being linked in sequence, high frequency transformer, rectification circuit, output record filter circuit, the driver element of inverter circuit includes pulse control circuit, and pulse control circuit adopts pulse width modulation chip TL494。Inside solves rheonome, pulsewidth modulation and maximum current restriction simultaneously; some additional monitoring and protection functions it are also provided with in chip; making chip have stronger capacity of resisting disturbance and higher reliability, the control system outward element constituted with this chip is less, simple in construction。
Battery tension detection unit includes as described in Figure 6: described battery tension detection unit includes: resistance R1 mono-terminates accumulator, 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 solar battery suppling circuit, mains-supplied circuit, accumulator and charging circuit, single-chip microcomputer and peripheral circuit thereof etc. and constitutes. and the electric current of solaode is when current detection circuit detection is more than 30mA (sunlight is sufficiently strong), it is solaode power supply after DC/DC converts that Single-chip Controlling charging controls to access power supply, this power supply charges to accumulator. when single-chip microcomputer detects that sunlight is more weak, detect battery tension again, if battery tension is sufficiently high, having accumulator to power to the load, system stops charging to accumulator；If battery tension is relatively low, civil power charges to accumulator through charging control circuit after AC/DC converts, then is powered to the load by accumulator. 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. adopt the information such as liquid crystal display circuit display solaode electric current, battery tension, working state of system for saving system power dissipation。
Described battery tension detection unit includes: resistance R1 mono-terminates accumulator, 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 and benchmark compares voltage respectively, it is used for comparing and calculating accumulator voltage swing, resistance R1 draws I/O-VL pin with diode D1 junction point, resistance R1 draws I/O-VB pin with diode D1 junction 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 for 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 adopting conversion or equivalence to replace and formed, all fall within rights protection scope of the present invention。
Claims (8)
1. adopt the harvester that the Smart Home energy mix of wireless charging bracelet is powered, it is characterised in that including:
Voice collecting bracelet: for receiving the phonetic order being used for, including bracelet and signal 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；
Video monitor unit: include the simulation photographic head being linked in sequence, video a/d converter, FPGA processor, dsp processor, described FPGA processor is connected to SRAM1 memorizer and SARM0 memorizer, dsp processor connects video a/d converter by I2C bus, and dsp processor is connected to storage device；
Described phonetic order collecting unit, AC-battery power source electric supply installation, video monitor unit are all connected with central processing unit；
Table body is provided with inner chamber (1-5) and bonnet (3), inner chamber (1-5) is divided into induction cavity (1-4-1) and circuit installation cavity (1-4-2), it is provided with winding coil LO in induction cavity (1-4-1)
Circuit installation cavity (1-4-2) is inner is provided with wireless Mac circuit and the solar charging circuit powered for wireless Mac circuit；
Described table body (1) is provided with rectangular channel (1-1), routing hole (1-2) it is provided with in rectangular channel (1-1), solar charging circuit includes solar energy electroplax, and solar energy electroplax is arranged in rectangular channel (1-1)；
Described table body is provided with the MIC through hole (1-6) for installing mike；
Described table body side surface is provided with a day line three-way hole (1-7)。
2. the harvester that the Smart Home energy mix of employing wireless charging bracelet according to claim 1 is powered, it is characterised in that: front end receiver 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 audion VT1, audion VT1 to the signal modulation of the resonance circuit input of coil T1, trimming capacitor C A composition, can obtain intermediate-freuqncy signal 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, adopts electric capacity half-wave reduction voltage circuit。
3. the harvester powered according to the arbitrary described Smart Home energy mix adopting wireless charging bracelet of claim 1-2, it is characterised in that: it is connected to power management module between described dsp controller and central processing unit。
4. the harvester that the Smart Home energy mix of employing wireless charging bracelet according to claim 1 is powered, it is characterised in that: AC-battery power source electric supply installation includes,
Solar units: include solaode, solaode is connected to DC/DC changer；
City's electric unit: city's electric unit includes civil power is converted to galvanic AC/DC changer；
Charging control circuit: control the connection of switching solar units, city's electric unit and accumulator；
Accumulator: storage electric energy and for load energy supply；
DSP control unit: the detection information according to detection unit, controls the duty of charging control circuit；
Detection unit: include the solaode current sensing means for detecting solaode size of current, the battery tension detection unit of detection battery tension size。
5. the harvester that the Smart Home energy mix of employing wireless charging bracelet according to claim 1 is powered, 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 adopts high frequency transformer, high frequency transformer includes the coil N1 and coil N2 of primary side, second siding ring N3；Self-excited oscillation circuit includes audion Q1, be sequentially connected with resistance R1, resistance R3, electric capacity C2, electric capacity C2 connects the colelctor electrode wiring circle N1 of the coil N2 of high frequency transformer, audion Q1, grounded emitter。
6. the harvester that the Smart Home energy mix of employing wireless charging bracelet according to claim 5 is powered, it is characterized in that: pressure limiting circuit includes audion Q2, resistance R5, resistance R6, diode VD2, the link of the colelctor electrode connecting resistance R1 and resistance R3 of audion 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 outfan；Described rectification circuit includes diode D1, diode D1 wiring circle N3 positive output end。
7. the harvester that the Smart Home energy mix of employing wireless charging bracelet according to claim 6 is powered, it is characterized in that: wireless Mac circuit includes resistance R7, electric capacity C4-C8, inductance L1-L2, switch S1, power supply, audion 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 audion Q3 connects biasing resistor R7, the other end of biasing resistor R7 connects power supply by switching S1, the colelctor electrode of audion connects electric capacity C5, inductance L1, electric capacity C6, electric capacity C5, the other end of inductance L1 connects power supply by switching S1, the emitter stage of the other end connecting triode Q3 of electric capacity C6, the emitter stage of audion is connected to mike MIC, mike MIC connects power cathode, electric capacity C8 is connected to both ends of power, the emitter stage of audion Q3 connects electric capacity C7, electric capacity C7 connects inductance L2, inductance L2 is connected to antenna。
8. the harvester that the Smart Home energy mix of employing wireless charging bracelet according to claim 6 is powered, it is characterized in that: also include watchband, watchband includes interior band (2-2), in addition (2-1), interior band (2-2) is provided with fixing hole (2-4), tyre is provided with the buckle (2-5) coordinated with fixing hole (2-4)；Described table body (1) is provided with shift knob (1-8)；Described induction cavity (1-4-1) and circuit installation cavity (1-4-2) are separated by rectangular clapboard (1-4)；Described bonnet is provided with Ka Jiao (3-1) and positioning convex (3-2), table body (1) inner chamber (1-5) inwall is provided with and Ka Jiao (3-1), and the groove that positioning convex (3-2) coordinates。
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105137795A (en) * | 2015-08-31 | 2015-12-09 | 成都科创城科技有限公司 | Smart home hybrid energy supply collection device employing wireless charging bracelet |
| 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 |
| US11921794B2 (en) | 2017-09-15 | 2024-03-05 | Kohler Co. | Feedback for water consuming appliance |
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2015
- 2015-08-31 CN CN201520664459.1U patent/CN205334083U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105137795A (en) * | 2015-08-31 | 2015-12-09 | 成都科创城科技有限公司 | Smart home hybrid energy supply collection device employing wireless charging bracelet |
| 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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