CN204650224U - A kind of remote speech appliance control system - Google Patents
A kind of remote speech appliance control system Download PDFInfo
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- CN204650224U CN204650224U CN201520403364.4U CN201520403364U CN204650224U CN 204650224 U CN204650224 U CN 204650224U CN 201520403364 U CN201520403364 U CN 201520403364U CN 204650224 U CN204650224 U CN 204650224U
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Abstract
A kind of remote speech appliance control system, relates to a kind of intelligent sound appliance control system.Solve existing intelligent appliance industry strong to the dependence of network, when the problem of paralysis appears in generation network failure appliance control system.Long-range Transmit-Receive Unit is used for communicating with main control unit, the control to indoor response unit is realized by main control unit, main control unit communicates with indoor corresponding units with long-range Transmit-Receive Unit simultaneously, main control unit adopts the control signal receiving long-range Transmit-Receive Unit and send, indoor response unit gathers indoor voice messaging by indoor voice collecting circuit, by the home appliance in home appliance remote terminal pulpit, avoid network fault influence, attach most importance to the wireless transmission that system carries, speech conversion people sent becomes digital signal, to control household electrical appliances.The utility model is applicable to Smart Home and uses.
Description
Technical field
The utility model relates to a kind of intelligent sound appliance control system.
Background technology
Intelligent appliance industry worldwide just develops rapidly at present, brings great convenience to the family life of people.Existing intelligent appliance technology is more rely on the Based Intelligent Control of internet, LAN (Local Area Network) realization to household electrical appliance.But while dependence instantly various advanced home wiring control technology, but ignore the design of man-machine interaction mode, even if the convenience of this Based Intelligent Control is able to extensive accreditation, but its concrete control still rests on original button operation.In addition, existing home wiring control technology is only for some specific household electrical appliance, and versatility is lower.And this control technology is comparatively large to internet dependence, once there is network failure, then appliance control system is close to paralysis.
Summary of the invention
The utility model is strong to the dependence of network in order to solve existing intelligent appliance industry, when the problem of paralysis appears in generation network failure appliance control system, proposes a kind of remote speech appliance control system.
A kind of remote speech appliance control system described in the utility model, it comprises long-range Transmit-Receive Unit, indoor response unit and main control unit;
Long-range Transmit-Receive Unit comprises remote port voice collecting circuit 1, remote port high-frequency carrier signal change-over circuit 2, remote port Modulation and Amplitude Modulation circuit 3, remote port antenna transmission circuit 4, remote port high-frequency signal pre-process circuit 5, remote port intermediate frequency amplification demodulatoring circuit 6 and remote audio signal output circuit 7;
The signal output part of remote port voice collecting circuit 1 connects the speech signal input of remote port high-frequency carrier signal change-over circuit 2, the high-frequency carrier signal output terminal of remote port high-frequency carrier signal change-over circuit 2 connects the modulation signal input end of remote port Modulation and Amplitude Modulation circuit 3, the signal output part of remote port Modulation and Amplitude Modulation circuit 3 connects the signal input part of remote port antenna transmission circuit 4, the signal output part of remote port antenna transmission circuit 4 connects the signal input part of remote port high-frequency signal pre-process circuit 5, the signal output part of remote port high-frequency signal pre-process circuit 5 connects the signal input part of remote port intermediate frequency amplification demodulatoring circuit 6, the signal output part of remote port intermediate frequency amplification demodulatoring circuit 6 connects the signal input part of remote audio signal output circuit 7, remote port voice collecting circuit 1 is for gathering the voice signal of residing environment,
Indoor response unit comprises house data control circuit 8, main control unit wireless receiving circuit 9, indoor voice collecting circuit 10, indoor voice messaging radiating circuit 11, interior illumination wireless control terminal 12, indoor environment information wireless radiating circuit 13, indoor environment information acquisition circuit 14 and home appliance remote terminal 15;
The voice signal output terminal of voice collecting circuit 10 in the speech signal input junction chamber of house data control circuit 8, the wireless signal input end of house data control circuit 8 connects the wireless signal output terminal of main control unit wireless receiving circuit 9, the appliance control signal output terminal of house data control circuit 8 connects the control signal input end of home appliance remote terminal 15, the ambient signal output terminal of the environmental information signal input end junction chamber environment information acquisition circuit 14 of house data control circuit 8, described indoor environment information acquisition circuit 14 is for gathering indoor temperature, luminosity, sound intensity signal,
The voice signal output terminal of data control circuit 8 in the signal input part junction chamber of indoor voice messaging radiating circuit 11, the illuminance control signal output terminal of data control circuit 8 in the control signal input end junction chamber of interior illumination wireless control terminal 12, the indoor environment information signal output terminal of data control circuit 8 in the signal input part junction chamber of indoor environment information wireless radiating circuit 13; Home appliance remote terminal 15 examines equipment for remote control;
Main control unit comprises central data treatment circuit 16, man-machine interaction circuit 17, indoor control signal radio transmitter 19, main high frequency carrier modulation circuit 20, main Modulation and Amplitude Modulation circuit 21, main antenna transmission circuit 22, main high-frequency signal pre-process circuit 23, main intermediate frequency amplification demodulatoring circuit 24, audio signal output circuit 25, speech recognition circuit 26, indoor voice messaging wireless receiving circuit 27, appliance control signal catching circuits 28 and indoor environment information wireless receiving circuit 29;
The control signal input display output terminal of central data treatment circuit 16 connects the control signal output display signal input part of man-machine interaction circuit 17, control the signal input part of signal wireless radiating circuit 19 in the indoor control signal output terminal junction chamber of central data treatment circuit 16, indoor control signal radio transmitter 19 is for carrying out radio communication with the main control unit wireless receiving circuit 9 of indoor response unit; the indoor environment signal output part of central data treatment circuit 16 connects the signal input part of main high frequency carrier modulation circuit 20, the signal output part of main high frequency carrier modulation circuit 20 connects the signal input part of main Modulation and Amplitude Modulation circuit 21, the signal output part of main Modulation and Amplitude Modulation circuit 21 connects the signal input part of main antenna transmission circuit 22, main antenna transmission circuit 22 carries out radio communication with the remote port antenna transmission circuit 4 of long-range Transmit-Receive Unit, the signal output part of main antenna transmission circuit 22 connects the signal input part of main high-frequency signal pre-process circuit 23, the signal output part of main high-frequency signal pre-process circuit 23 connects the signal input part of main intermediate frequency amplification demodulatoring circuit 24, the signal output part of main intermediate frequency amplification demodulatoring circuit 24 connects audio signal output circuit 25 signal input part, audio signal output end and the signal output part of indoor voice messaging wireless receiving circuit 27 of audio signal output circuit 25 are all connected the speech signal input of speech recognition circuit 26, the signal output part of speech recognition circuit 26 connects the speech signal input of central data treatment circuit 16, the signal output part of appliance control signal catching circuits 28 connects the appliance control signal input end of central data treatment circuit 16, and appliance control signal catching circuits 28 is for catching the control information of household electrical appliances by infrared receiver, the signal output part of indoor environment information wireless receiving circuit 29 connects the indoor environment information input terminal of central data treatment circuit 16,
Appliance control signal catching circuits 28 adopt model be HXD019M modified infrared learning module realize; The chip microcontroller that house data control circuit 8 and central data treatment circuit 16 all adopt.
The present invention avoids network fault influence, attaches most importance to the wireless transmission that system carries, and adopt speech recognition technology, speech conversion people sent becomes digital signal, to control household electrical appliances, improves man-machine interaction mode.And this control is not only confined to user and realizes Voice command household electrical appliances in indoor by indoor response unit, the user local user not far in outdoor can also realize the Voice command of household electrical appliances by long-range Transmit-Receive Unit of the present invention.Such as at Stall, find that certain household electrical appliance of the 20 floor still run in unmanned situation by the indoor environment information acquisition circuit of the indoor response unit of the present invention, so then can be turned off these household electrical appliance of the 20 floor by long-range Transmit-Receive Unit of the present invention.Remote voice control function of the present invention can reach more than three kilometers, and for certain residential quarter or office tower, the present invention completely can most of home appliances in control area.Namely rely on the man-machine interface of voice and remote speech to control, expand the extension of home wiring control.Successfully broken away from existing intelligent appliance industry to the dependence of network, when there is network failure, appliance control system still can normally work.
Accompanying drawing explanation
Fig. 1 is the electrical structure schematic diagram of the long-range Transmit-Receive Unit of a kind of remote speech appliance control system described in the utility model;
Fig. 2 is the electrical structure schematic diagram of the indoor response unit of a kind of remote speech appliance control system described in the utility model;
Fig. 3 is the electrical structure schematic diagram of a kind of remote speech appliance control system main control unit described in the utility model.
Embodiment
Embodiment one, composition graphs 1, Fig. 2 and Fig. 3 illustrate present embodiment, a kind of remote speech appliance control system described in present embodiment, and it comprises long-range Transmit-Receive Unit, indoor response unit and main control unit; Wherein, long-range Transmit-Receive Unit is independent of outside room, and indoor response unit is distributed in each corner, room;
Long-range Transmit-Receive Unit comprises remote port voice collecting circuit 1, remote port high-frequency carrier signal change-over circuit 2, remote port Modulation and Amplitude Modulation circuit 3, remote port antenna transmission circuit 4, remote port high-frequency signal pre-process circuit 5, remote port intermediate frequency amplification demodulatoring circuit 6 and remote audio signal output circuit 7;
The signal output part of remote port voice collecting circuit 1 connects the speech signal input of remote port high-frequency carrier signal change-over circuit 2, the high-frequency carrier signal output terminal of remote port high-frequency carrier signal change-over circuit 2 connects the modulation signal input end of remote port Modulation and Amplitude Modulation circuit 3, the signal output part of remote port Modulation and Amplitude Modulation circuit 3 connects the signal input part of remote port antenna transmission circuit 4, the signal output part of remote port antenna transmission circuit 4 connects the signal input part of remote port high-frequency signal pre-process circuit 5, the signal output part of remote port high-frequency signal pre-process circuit 5 connects the signal input part of remote port intermediate frequency amplification demodulatoring circuit 6, the signal output part of remote port intermediate frequency amplification demodulatoring circuit 6 connects the signal input part of remote audio signal output circuit 7, remote port voice collecting circuit 1 is for gathering the voice signal of residing environment,
Indoor response unit comprises house data control circuit 8, main control unit wireless receiving circuit 9, indoor voice collecting circuit 10, indoor voice messaging radiating circuit 11, interior illumination wireless control terminal 12, indoor environment information wireless radiating circuit 13, indoor environment information acquisition circuit 14 and home appliance remote terminal 15;
The voice signal output terminal of voice collecting circuit 10 in the speech signal input junction chamber of house data control circuit 8, the wireless signal input end of house data control circuit 8 connects the wireless signal output terminal of main control unit wireless receiving circuit 9, the appliance control signal output terminal of house data control circuit 8 connects the control signal input end of home appliance remote terminal 15, the ambient signal output terminal of the environmental information signal input end junction chamber environment information acquisition circuit 14 of house data control circuit 8, described indoor environment information acquisition circuit 14 is for gathering indoor temperature, luminosity, sound intensity signal,
The voice signal output terminal of data control circuit 8 in the signal input part junction chamber of indoor voice messaging radiating circuit 11, the illuminance control signal output terminal of data control circuit 8 in the control signal input end junction chamber of interior illumination wireless control terminal 12, the indoor environment information signal output terminal of data control circuit 8 in the signal input part junction chamber of indoor environment information wireless radiating circuit 13; Home appliance remote terminal 15 examines equipment for remote control;
Main control unit comprises central data treatment circuit 16, man-machine interaction circuit 17, indoor control signal radio transmitter 19, main high frequency carrier modulation circuit 20, main Modulation and Amplitude Modulation circuit 21, main antenna transmission circuit 22, main high-frequency signal pre-process circuit 23, main intermediate frequency amplification demodulatoring circuit 24, audio signal output circuit 25, speech recognition circuit 26, indoor voice messaging wireless receiving circuit 27, appliance control signal catching circuits 28 and indoor environment information wireless receiving circuit 29;
The control signal input display output terminal of central data treatment circuit 16 connects the control signal output display signal input part of man-machine interaction circuit 17, control the signal input part of signal wireless radiating circuit 19 in the indoor control signal output terminal junction chamber of central data treatment circuit 16, indoor control signal radio transmitter 19 is for carrying out radio communication with the main control unit wireless receiving circuit 9 of indoor response unit; the indoor environment signal output part of central data treatment circuit 16 connects the signal input part of main high frequency carrier modulation circuit 20, the signal output part of main high frequency carrier modulation circuit 20 connects the signal input part of main Modulation and Amplitude Modulation circuit 21, the signal output part of main Modulation and Amplitude Modulation circuit 21 connects the signal input part of main antenna transmission circuit 22, main antenna transmission circuit 22 carries out radio communication with the remote port antenna transmission circuit 4 of long-range Transmit-Receive Unit, the signal output part of main antenna transmission circuit 22 connects the signal input part of main high-frequency signal pre-process circuit 23, the signal output part of main high-frequency signal pre-process circuit 23 connects the signal input part of main intermediate frequency amplification demodulatoring circuit 24, the signal output part of main intermediate frequency amplification demodulatoring circuit 24 connects audio signal output circuit 25 signal input part, audio signal output end and the signal output part of indoor voice messaging wireless receiving circuit 27 of audio signal output circuit 25 are all connected the speech signal input of speech recognition circuit 26, the signal output part of speech recognition circuit 26 connects the speech signal input of central data treatment circuit 16, the signal output part of appliance control signal catching circuits 28 connects the appliance control signal input end of central data treatment circuit 16, and appliance control signal catching circuits 28 is for catching the control information of household electrical appliances by infrared receiver, the signal output part of indoor environment information wireless receiving circuit 29 connects the indoor environment information input terminal of central data treatment circuit 16, appliance control signal catching circuits 28 adopt model be HXD019M modified infrared learning module realize, the chip microcontroller that house data control circuit 8 and central data treatment circuit 16 all adopt.
House data control circuit 8 described in present embodiment and central data treatment circuit 16 all have employed the conventional function of single-chip microcomputer, and control method is existing common method, does not improve to the function of single-chip microcomputer.
The Modulation and Amplitude Modulation circuit of present embodiment, realized by the amplitude modulaor realizing amplitude modulation function, high-frequency signal pre-process circuit, form by drawing together radio-frequency amplifier, frequency mixer and local oscillator, intermediate frequency amplification demodulatoring circuit, be made up of intermediate frequency amplifier and amplitude detector, indoor voice messaging Acquisition Circuit, audio controls is sent in indoor for collector, indoor voice messaging radiating circuit, wireless voice information is launched, home appliance remote terminal, for household electrical appliances emission control information for the indoor voice messaging wireless receiving circuit to main control unit; Indoor voice messaging wireless receiving circuit, the wireless voice information that in receiving chamber, voice messaging radiating circuit is sent out, speech recognition circuit, is used for recognition of speech signals; Storer, is used for storing and generating information of voice prompt.Appliance control signal catching circuits, whether the appliance control signal that the home appliance remote terminal being used for learning response unit in the remote information of various household electrical appliances and detecting chamber sends is normal, high-frequency carrier signal change-over circuit, be made up of oscillator and radio-frequency amplifier, Modulation and Amplitude Modulation unit, be made up of the amplitude modulaor realizing amplitude modulation function, remote port antenna transmission circuit and main control unit carry out remote information and exchange.
Remote speech information acquisition circuit is made up of the antenna transmission information of the remote port antenna transmission circuit reception main control unit of described long-range Transmit-Receive Unit microphone, voice filter and modulated amplifier, launch the information of native system to main control unit, the antenna Transmit-Receive Unit of main control unit in contrast simultaneously.
Embodiment two, present embodiment are further illustrating a kind of remote speech appliance control system described in embodiment one, high-frequency carrier signal change-over circuit comprises oscillator and radio-frequency amplifier, the signal input part of oscillator is the signal input part of high-frequency carrier signal change-over circuit, the signal output part of oscillator connects the signal input part of radio-frequency amplifier, and the signal output part of radio-frequency amplifier is the signal output part of high-frequency carrier signal change-over circuit.
Embodiment three, present embodiment are further illustrating a kind of remote speech appliance control system described in embodiment one, it also comprises storer 18, the signal input part of the data output end connected storage 18 of central data treatment circuit 16.
House data control circuit described in the utility model and central data processing center are by single-chip microcomputer, flush bonding processor composition.Indoor voice messaging Acquisition Circuit comprises Electret condenser microphone and voice filter; Remote audio signal output circuit is the further filter amplifying processing of signal detection gone out; Indoor environment information acquisition circuit can detect indoor temperature, luminance brightness, sound intensity, human body infrared; The indoor voice messaging wireless receiving circuit of indoor voice messaging radiating circuit and main control unit is frequency modulation broadcasting transmitter and FM radio receiver device or bluetooth transmitters and Bluetooth Receiver; Home appliance remote terminal uses Infrared High-Power light source radiating circuit.Described speech recognition circuit adopts Voice ASIC.The technical solution of the utility model adopts the indoor acoustic pickup be made up of Electret condenser microphone and voice filter to realize indoor voice collecting function, the distance limit between speaker and indoor response unit can be reduced, reduce the mistake identification phenomenon because environmental noise causes simultaneously.What remote port voice collecting circuit adopted microphone, wave filter and modulated amplifier to form launches teleinformatic voice module.Adopt voice recognition chip to realize speech identifying function, speech recognition speed and precision can be improved, reduce system cost simultaneously.Adopt bluetooth transmitters and Bluetooth Receiver as the wireless transport module of indoor voice signal, bluetooth transmitters and Bluetooth Receiver, it is strong that bluetooth transmitters and Bluetooth Receiver have transmission antijamming capability, and low in energy consumption, transfer rate is high, the feature of good confidentiality.The remote wireless transceiver system of use can improve reception and transmission range greatly.Storer contains special chipspeech, word synthetic speech is carried out sounding to provide good feedback to user.Voice responsive file can be recorded in advance like this, increase the dirigibility of system interaction interface adjustment.The various environmental information detecting modules that indoor environment information acquisition circuit uses can each environmental indexs of accurate perception indoor, and send to long-range transmission circuit by calling information of voice prompt corresponding in storer after the environmental information process of collection, finally reporting form with voice response informs in user, facilitate user to grasp indoor environment information in time at a distance in outdoor, thus carry out remote speech control household electrical appliances.Use powerful infraluminescence circuit as appliance control signal output module, be conducive to controlling.
Claims (3)
1. a remote speech appliance control system, is characterized in that, it comprises long-range Transmit-Receive Unit, indoor response unit and main control unit;
Long-range Transmit-Receive Unit comprises remote port voice collecting circuit (1), remote port high-frequency carrier signal change-over circuit (2), remote port Modulation and Amplitude Modulation circuit (3), remote port antenna transmission circuit (4), remote port high-frequency signal pre-process circuit (5), remote port intermediate frequency amplification demodulatoring circuit (6) and remote audio signal output circuit (7);
The signal output part of remote port voice collecting circuit (1) connects the remote port high-frequency carrier signal change-over circuit (speech signal input of 2, the high-frequency carrier signal output terminal of remote port high-frequency carrier signal change-over circuit (2) connects the modulation signal input end of remote port Modulation and Amplitude Modulation circuit (3), the signal output part of remote port Modulation and Amplitude Modulation circuit (3) connects the signal input part of remote port antenna transmission circuit (4), the signal output part of remote port antenna transmission circuit (4) connects the signal input part of remote port high-frequency signal pre-process circuit (5), the signal output part of remote port high-frequency signal pre-process circuit (5) connects the signal input part of remote port intermediate frequency amplification demodulatoring circuit (6), the signal output part of remote port intermediate frequency amplification demodulatoring circuit (6) connects the signal input part of remote audio signal output circuit (7), remote port voice collecting circuit (1) is for gathering the voice signal of residing environment,
Indoor response unit comprises house data control circuit (8), main control unit wireless receiving circuit (9), indoor voice collecting circuit (10), indoor voice messaging radiating circuit (11), interior illumination wireless control terminal (12), indoor environment information wireless radiating circuit (13), indoor environment information acquisition circuit (14) and home appliance remote terminal (15);
The voice signal output terminal of voice collecting circuit (10) in the speech signal input junction chamber of house data control circuit (8), the wireless signal input end of house data control circuit (8) connects the wireless signal output terminal of main control unit wireless receiving circuit (9), the appliance control signal output terminal of house data control circuit (8) connects the control signal input end of home appliance remote terminal (15), the ambient signal output terminal of environmental information signal input end junction chamber environment information acquisition circuit (14) of house data control circuit (8), described indoor environment information acquisition circuit (14) is for gathering indoor temperature, luminosity, sound intensity signal,
The voice signal output terminal of data control circuit (8) in the signal input part junction chamber of indoor voice messaging radiating circuit (11), the illuminance control signal output terminal of data control circuit (8) in the control signal input end junction chamber of interior illumination wireless control terminal (12), the indoor environment information signal output terminal of data control circuit (8) in the signal input part junction chamber of indoor environment information wireless radiating circuit (13); Home appliance remote terminal (15) examines equipment for remote control;
Main control unit comprises central data treatment circuit (16), man-machine interaction circuit (17), indoor control signal radio transmitter (19), main high frequency carrier modulation circuit (20), main Modulation and Amplitude Modulation circuit (21), main antenna transmission circuit (22), main high-frequency signal pre-process circuit (23), main intermediate frequency amplification demodulatoring circuit (24), audio signal output circuit (25), speech recognition circuit (26), indoor voice messaging wireless receiving circuit (27), appliance control signal catching circuits (28) and indoor environment information wireless receiving circuit (29),
The control signal input display output terminal of central data treatment circuit (16) connects the control signal output display signal input part of man-machine interaction circuit (17), control the signal input part of signal wireless radiating circuit (19) in the indoor control signal output terminal junction chamber of central data treatment circuit (16), indoor control signal radio transmitter (19) is for carrying out radio communication with the main control unit wireless receiving circuit (9) of indoor response unit; the indoor environment signal output part of central data treatment circuit (16) connects the signal input part of main high frequency carrier modulation circuit (20), the signal output part of main high frequency carrier modulation circuit (20) connects the signal input part of main Modulation and Amplitude Modulation circuit (21), the signal output part of main Modulation and Amplitude Modulation circuit (21) connects the signal input part of main antenna transmission circuit (22), main antenna transmission circuit (22) carries out radio communication with the remote port antenna transmission circuit (4) of long-range Transmit-Receive Unit, the signal output part of main antenna transmission circuit (22) connects the signal input part of main high-frequency signal pre-process circuit (23), the signal output part of main high-frequency signal pre-process circuit (23) connects the signal input part of main intermediate frequency amplification demodulatoring circuit (24), the signal output part of main intermediate frequency amplification demodulatoring circuit (24) connects audio signal output circuit (25) signal input part, audio signal output end and the signal output part of indoor voice messaging wireless receiving circuit (27) of audio signal output circuit (25) are all connected the speech signal input of speech recognition circuit (26), the signal output part of speech recognition circuit (26) connects the speech signal input of central data treatment circuit (16), the signal output part of appliance control signal catching circuits (28) connects the appliance control signal input end of central data treatment circuit (16), and appliance control signal catching circuits (28) is for catching the control information of household electrical appliances by infrared receiver, the signal output part of indoor environment information wireless receiving circuit (29) connects the indoor environment information input terminal of central data treatment circuit (16).
2. a kind of remote speech appliance control system according to claim 1, it is characterized in that, high-frequency carrier signal change-over circuit comprises oscillator and radio-frequency amplifier, the signal input part of oscillator is the signal input part of high-frequency carrier signal change-over circuit, the signal output part of oscillator connects the signal input part of radio-frequency amplifier, and the signal output part of radio-frequency amplifier is the signal output part of high-frequency carrier signal change-over circuit.
3. a kind of remote speech appliance control system according to claim 1, it is characterized in that, it also comprises storer (18), the signal input part of the data output end connected storage (18) of central data treatment circuit (16).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520403364.4U CN204650224U (en) | 2015-06-12 | 2015-06-12 | A kind of remote speech appliance control system |
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| CN201520403364.4U CN204650224U (en) | 2015-06-12 | 2015-06-12 | A kind of remote speech appliance control system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108711424A (en) * | 2018-05-02 | 2018-10-26 | 四川斐讯信息技术有限公司 | A kind of distributed sound control method and system |
| CN109445340A (en) * | 2018-10-31 | 2019-03-08 | 钟祥博谦信息科技有限公司 | Household electrical appliance remote switch system |
-
2015
- 2015-06-12 CN CN201520403364.4U patent/CN204650224U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108711424A (en) * | 2018-05-02 | 2018-10-26 | 四川斐讯信息技术有限公司 | A kind of distributed sound control method and system |
| CN109445340A (en) * | 2018-10-31 | 2019-03-08 | 钟祥博谦信息科技有限公司 | Household electrical appliance remote switch system |
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