CN1335679A - Intelligent radio remote control electric appliance switch system - Google Patents
Intelligent radio remote control electric appliance switch system Download PDFInfo
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- CN1335679A CN1335679A CN 00122150 CN00122150A CN1335679A CN 1335679 A CN1335679 A CN 1335679A CN 00122150 CN00122150 CN 00122150 CN 00122150 A CN00122150 A CN 00122150A CN 1335679 A CN1335679 A CN 1335679A
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Abstract
The intelligent radio remote control appliance switch system includes remote controlled emitter and remote controlled receiver, and features that the switch system consists of three parts including several fixed radio emitters, several radio receiving switches and one portable system controller, with separate control systems comprising monochip computer and electrically alterable memory; that several radio emitter and one portable system radio main remote controller monochip computer takes out of the address code from the memory and produces corresponding operation control code according to the key input so as to constitute the coded pulse string output to modulate the RF emitter; and the RF signal radiated from remote controller on multi-radio receiving switches, is received through RF receiving block and then is demodulated and shaped before input to the monochip computer and then compared with address code from the memory to control switches. The present invention has long control distance and one-to-multiple and multiple-to-one control functions.
Description
The present invention relates to a kind of intelligent radio remote control electric appliance switch system, be specially adapted to utilize digital coding and single-chip microcomputer control technology, realize that a control of code division multiple access is many, control more one multiple unit and multi-functional (to lamp carry out light modulation and to the electrical equipment timing etc.) radio remote control electric appliance switch system.
At present, on the market of control electric light (device) field of switches, can see the product of following several classes, its basic condition is as follows: adopt less radio-frequency control, can realize the unscreened control of 1 control 1, command range can't be realized the many functions of 1 control about 20 meters, family can not buy several remote controllers and realize a plurality of controls, so use inconvenient.Employing infrared ray control can realize the control of 1 control 4, and is uncontrollable when the situation of blocking is arranged, only several meters of command ranges.Can not realize 1 control more than 5, and cost an arm and a leg.
The object of the present invention is to provide a kind of command range distant, can realize that a control is many, control one multiple unit and multifunction wireless remote control electrical appliance switching system more.
The objective of the invention is to realize by following technical solution:
The present invention includes remote control transmitter and receiver of remote-control sytem, it is characterized in that:
A. be made up of the identical a plurality of fixed wireless remote control emitter of operating frequency, a plurality of terminal wireless receiving key and three parts of a wireless master remote controller of portable system, wherein every part constitutes control system by a slice ultra low-power microcontroller and electrically alterable memory;
B. many fixed wireless remote control emitters and the wireless master remote controller single-chip microcomputer of portable system take out address code from memory, and form also modulated RF reflector of coded pulse string output according to the corresponding operation of button input generation control code;
C. the radiofrequency signal that remote controller gives off on many terminal wireless receiving keys receives the piece receiving demodulation through radio frequency, with the input of the pulse train after shaping single-chip microcomputer, and carries out switch control with the address code in the memory after relatively.
System of the present invention master remote controller mainly is made up of PIC16C64 single-chip microcomputer, AT24C01 electrically alterable memory, LCD display module and micro-power radio frequency reflector RF003, enters setting operation by the keyboard input control system.The different address code of button input deposits eeprom memory in; Enter normal operating condition by the keyboard input control system, single-chip microcomputer takes out address code from memory, and input produces corresponding operation control code composition coded pulse string output and modulated RF reflector RF003 according to button; Memory is delivered to LCD display module interface by the RD mouth of single-chip microcomputer with data, and operating process and result are shown on LCD display; Open or close LED1-LED4 by regularly detecting light resistance R3 magnitude of voltage as keyboard night illumination; Button DEL presses, and enters the room and sets; Button FAN presses and enters the address code setting; When the on-keyboard input, and surpass 15S, the LED1-LED4 of keyboard night illumination enters sleep state.
Remote controller was by being made up of PIC16C64 single-chip microcomputer, AT24C01 electrically alterable memory and micro-power radio frequency reflector RF003 in fixed minute of the present invention; Study interface (B) joins with the study interface (A) of master remote controller, and address code and command code that master remote controller is sent here the pulse train from data port all deposit internal register in; By button AN1-AN4 input, single-chip microcomputer is with the writing data into memory in the internal register; The data of corresponding address section are formed address code and the command code pulse train outputs to the modulated RF reflector from I/O mouth RAO, with its signal modulate emission.
Little electric current capacitor voltage-dropping power supply that terminal wireless receiving key of the present invention is made up of C1-C3, D1 and D2, little power consumption RF wireless receiving module RF001, single-chip microcomputer PIC16C54, electrically alterable memory AT24C01 and controllable silicon T1 form; The radiofrequency signal that is given off by remote controller receives piece (RF001) receiving demodulation through radio frequency, and the pulse train after the shaping is sent into single-chip microcomputer IC2 through R1; Address code in the pulse train that IC2 sends RF001 here and the contrast of the address code in the memory IC 1.
Little electric current capacitor voltage-dropping power supply, little power consumption RF wireless receiving module RF001, single-chip microcomputer PIC16C54, electrically alterable memory AT24C01 and controllable silicon T1 that the present invention can also the terminal wireless receiving key be made up of C1-C3, D1 and D2 form; Be connected a current sense transformer TT between D2 and power supply, D5, D6 are used for guaranteeing that as pressure limiting the first pole tension of TT is stabilized in about 0.7V when the load variations; Study interface (C) and the study interface (A) of master remote controller or the study mouth (B) of the fixing type telecontrol device by study join, address code and control code that single-chip microcomputer will be learnt in mouthful pulse train of sending into all deposit in the memory; The RA2 pin of single-chip microcomputer PIC16C54 is a high level, receives RA3 input data, the address of receiving data is deposited among the EEPROM, and with EEPROM in corresponding address code relatively, carry out outputs such as corresponding open and close, light modulation, time-delay and drive.
The present invention compared with prior art has following characteristics:
Operating distance is far away.Can realize wireless remote control electric light (device) switching system of remote (indoor 50 meters, outdoor 100 meters) operation.
Partition wall control.The electric light (device) that can block any sight in certain scope carries out switch control accurately, has fundamentally overcome the phenomenon that infrared electric light (device) switching system can not be controlled the electric light (device) of partition wall.
Economize decoration cost.In compound building, if will be implemented in downstairs control electric light (device) or control electric light (device) downstairs upstairs upstairs, its wiring is very complicated, has not only taken line but also time-consuming.And native system can be saved the lead that is connected between conventional switch and the electric light (device), saves the artificial and lead costs of a large amount of finishings.
The light modulation timing controlled.Can carry out remote control light modulating (except fluorescent lamp and the electricity-saving lamp) and electrical equipment is carried out timing controlled electric light.
The automatic illumination Design of master remote controller keyboard.Whether the master remote controller keyboard back light can according to judges whether to light being used for automatically when light is dark, can automatic closing keyboard when bright and clear backlight.
Little power consumption.In master remote controller, adopt No. 7 batteries of 4 joints can use more than 1 year; In minute remote controller, adopt 2 CR2032 batteries can use more than 3 years.
The convenient installation.Controlling receiver adopts two-wire to advance two-wire to go out to advance single line with single line and go out two kinds of mounting meanss; Iversion controller can arbitrarily be installed in the place of owner's handled easily.
Many and the many controls one of one control.A remote controller can be controlled the Kai Heguan of a plurality of electric lights (device) simultaneously.Also can be a plurality of the Kai Heguan of remote controllers electric lights of control (device); One main controller is controlled the size can be up to 64 the tunnel.
The control precision height.Adopt digital fault-tolerant encoding technology and Single-chip Controlling, the anti-interference ability is strong.
Intellectualized operation., can choose at random and be provided with by LCD display with master remote controller according to actual electrical equipment; Master remote controller divides remote controller to learn to realize various controlled function by religion.
The machine code of each master remote controller is unique.Be that master remote controller A can not control the set receiver of master remote controller B.
Description of drawings of the present invention is as follows:
Fig. 1 is a master remote controller functional-block diagram of the present invention.
Fig. 2 branch is a remote controller functional-block diagram of the present invention.
Fig. 3 is that terminal of the present invention receives functional-block diagram.
Fig. 4 is a master remote controller electrical schematic diagram of the present invention.
Fig. 5 is a pulse code format chart of the present invention.
Fig. 6 is of the present invention minute remote controller electrical schematic diagram.
Fig. 7 is a two-wire terminal receiving key electrical schematic diagram of the present invention.
Fig. 8 is a single line terminal receiving key electrical schematic diagram of the present invention.
Fig. 9 is a master remote controller program flow chart of the present invention.
Figure 10 is of the present invention minute remote controller program flow chart.
Figure 11 is a terminal receiving key program flow chart of the present invention.
Figure 12 is master remote controller of the present invention, branch remote controller, terminal receiving key shape assumption diagram.
The present invention is described in further detail below in conjunction with description of drawings: as shown in figure 12, the present invention mainly is made up of master remote controller, branch remote controller and terminal receiver three parts.Master remote controller (portable) adopts LCD duplicate rows Chinese and English to show, can carry out the control of remote-wireless switch to more than 30 kinds of family expenses electric lights (device); Divide remote controller to adopt the fixed installation mode identical to design with conventional domestic electric light (device) switch, can be as regular tap, be fixed on handled easily Anywhere, replace traditional electric light (device) switch, not only saved a large amount of wire rods, and made that to manipulate, change installation, maintenance etc. all convenient and swift; The terminal receiver divides two-wire and two kinds of mounting meanss of single line, is suitable for the switch control functions of electric light (device) in certain power bracket.
As shown in Figure 1, 2, 3, " intelligent electric appliance wireless switch system " of the present invention is made up of the identical a plurality of fixing type telecontrol reflectors of operating frequency, a plurality of terminal receiving key and three parts of a portable system master remote controller.Each part constitutes control system by a slice ultra low-power microcontroller and electrically alterable memory, makes system realize different functions by different programmings.
Fig. 4 is system's master remote controller electrical schematic diagram, and it mainly is made up of ultra low-power microcontroller IC2 (PIC16C64), electrically alterable memory IC1 (AT24C01), LCD display module and micro-power radio frequency reflector RF003; Select to make system to enter setting operation and the normal two states that uses by keyboard, can import different address code (216 kinds of combinations) by button when state is set and deposit eeprom memory IC1 in when entering; When normally using operation, single-chip microcomputer takes out address code from memory IC 1, and forms also modulated RF reflector RF003 of coded pulse string (as Fig. 5) output according to the corresponding operation of button input generation control code; IC1 delivers to LCD display module interface by the RD mouth of IC2 with data simultaneously, and operating process and result are shown on LCD display.System determines whether opening or closing LED1-LED4 as keyboard night illumination by the size that regularly detects light resistance R3 magnitude of voltage when normal operating conditions, system does not enter sleep state (I＜2 μ A) automatically after having operation in 15 seconds, press or rolling switch M automatic waken system work when detecting master remote controller and being moved as button, wait for the button input.
Fig. 6 is fixed minute remote controller electrical schematic diagram.It is made of ultra low-power microcontroller IC2 (PIC16C54), memory IC 1 (AT24C01) and little power consumption radiofrequency launcher RF002.The study interface (A) that to learn interface (B) and master remote controller before using joins, the Vpp of study this moment mouth obtains voltage makes the RA2 end of IC2 become high level and enter learning state, and address code and command code that this moment, IC2 sent master remote controller the pulse train here from data port all deposit internal register in; Push button in this case as again in the middle of the AN1-AN4 any, IC2 is just with among the writing data into memory IC1 in the internal register and the key corresponding address section that is pressed.Any that the AN1-AN4 that pushes button during normal the use is central, after single-chip microcomputer IC2 obtains power supply, take out in the memory IC 1 and the data of the button corresponding address section of pressing, form address code and command code pulse train, RAO outputs to the modulated RF reflector from the I/O mouth, with this signal modulate emission.Whether piezoelectric patches HD sends different sound indication operations respectively when learning with use effective.Because entire circuit when work electric current is less than 5mA, and each average key press time less than 0.3 second, so adopt CR2032 type lithium ion battery to power, be the several years its useful life.
Fig. 7 is a two-wire terminal receiving key electrical schematic diagram.Little electric current capacitor voltage-dropping power supply that it is made up of C1-C3, D1 and D2, little power consumption RF wireless receiving module RF001, single-chip microcomputer IC2 (PIC16C54), electrically alterable memory IC1 (AT24C01) and controllable silicon T1 form.To learn before using the study interface (A) of interface (C) and master remote controller or the study mouth (B) by the fixing type telecontrol device learnt join; V
PpObtain voltage and enter learning state, address code and control code that IC2 will learn in mouthful pulse train of sending into all deposit in the memory IC 1.Normally make the control code data among the IC2 taking-up IC1 when having access to electricity, according to the function and the state (promptly whether having light modulation and power-failure protecting etc.) of this data structure determine switch; The radiofrequency signal of being launched by remote controller receives piece (RF001) receiving demodulation through radio frequency, and the pulse train after the shaping is sent into single-chip microcomputer IC2 through R1; Address code in the pulse train that IC2 sends RF001 here and the contrast of the address code in the memory IC 1 as identical, are then made corresponding control according to the control code in the pulse train to controllable silicon T1; IC2 detects the 50Hz power phase by resistance R 9, and output is stable when being operated in dimming state with assurance.
Fig. 8 is a single line receiving key electrical schematic diagram.What it was different with the two-wire receiving key is to have increased current sense transformer TT.When controllable silicon ended, power supply was provided by little electric current capacitor voltage-dropping power supply that C1-C3, D1 and D2 form; And when the controllable silicon conducting, rely on load current to flow through the TT utmost point just, at the inferior voltage that produces on extremely about 10V, after the D4 rectification as power supply; D5, D6 are used for guaranteeing that as pressure limiting the first pole tension of TT is stabilized in about 0.7V when load variations.
Shown in Fig. 9,10,11, many and one the implementation methods of controlling of a control are to adopt the receiving key that the rf frequency remote control transmitter is identical with a plurality of receive frequencies more, form intelligent radio remote control electric appliance switch system.The signal that reflector sends in same system all can be received by each receiving key; Each receiving key is according to receiving that address code and control code in the signal judge whether action and action object; By to geocoding and control code on remote control transmitter and the receiving key set in advance, can make the one or more receiving keys of the corresponding control of remote control transmitter, thereby realize the many controlled function of a control with identical address coding.If with main remote control transmitter and divide the address code of remote control transmitter and control code set in advance identically, can realize one the controlled function of controlling more.In the implementation method of learning functionality, convenient for the change that makes geocoding and control coding, many and one the functions of controlling of realization one control have increased EEPROM more in circuit.When the study interface of remote control transmitter and receiving terminal join, press the remote control transmitter function key, from study mouthful output signal pulses string and study voltage, address code and command code that receiving terminal obtains learning will learning in mouthful pulse train of input behind the voltage deposit among the memory EEPROM, just can transmit data among the EEPROM mutually by system's each several part study interface.
When the study interface of the study interface of remote control transmitter and another remote control transmitter joined, the remote control transmitter that pushes button earlier was as main frame, from study mouthful output signal pulses string and study voltage; The remote control transmitter of button, does not deposit address code and command code in the pulse train of study mouthful input in after obtaining learning voltage as slave, when pressing the slave button address code and command code is deposited in the EEPROM unit of the button appropriate address of pressing.
Address code in the pulse train that receiving terminal is sent dash receiver here during normal the use is compared with the address code among the memory EEPROM; As identical, then will make control corresponding to controllable silicon according to the control code in the pulse train.
When pressing the remote control transmitter button during normal the use, from the EEPROM unit of the button corresponding address that is pressed, take out address code and command code outputs to modulating part.
Claims (10)
1. an intelligent electric appliance wireless switch system comprises remote control transmitter and receiver of remote-control sytem, it is characterized in that:
A. be made up of the identical a plurality of fixed wireless remote control emitter of operating frequency, a plurality of terminal wireless receiving key and three parts of a wireless master remote controller of portable system, wherein every part constitutes control system by a slice ultra low-power microcontroller and electrically alterable memory;
B. many fixed wireless remote control emitters and the wireless master remote controller single-chip microcomputer of portable system take out address code from memory, and form also modulated RF reflector of coded pulse string output according to the corresponding operation of button input generation control code;
C. the radiofrequency signal that gives off of the remote controller on many terminal wireless receiving keys receives the piece receiving demodulation through radio frequency, with the input of the pulse train after shaping single-chip microcomputer, and carries out switch control with the address code in the memory after relatively.
2. intelligent radio remote control electric appliance switch system according to claim 1, it is characterized in that: system's master remote controller mainly is made up of PIC16C64 single-chip microcomputer, AT24C01 electrically alterable memory, LCD display module and micro-power radio frequency reflector RF003, enter setting operation by the keyboard input control system, the different address code of button input deposits eeprom memory in.
3 intelligent radio remote control electric appliance switch systems according to claim 2, it is characterized in that: when entering normal operating condition by the keyboard input control system, single-chip microcomputer takes out address code from memory and input produces corresponding operation control code composition coded pulse string output and modulated RF reflector RF003 according to button.
4. intelligent radio remote control electric appliance switch system according to claim 1, it is characterized in that memory delivers to LCD display module interface by the RD mouth of single-chip microcomputer with data, operating process and result are shown on LCD display, open or close LED1-LED4 as keyboard night illumination by regularly detecting light resistance R3 magnitude of voltage.
5. according to claim 1 or 2 or 3 or 4 described intelligent radio remote control electric appliance switch systems, it is characterized in that: button DEL presses, and enters the room and sets; Button FAN presses and enters the address code setting; When the on-keyboard input, and surpass 15S, the LED1-LED4 of keyboard night illumination enters sleep state.
6. intelligent radio remote control electric appliance switch system according to claim 1, it is characterized in that fixed minute remote controller is by the PIC16C64 single-chip microcomputer, AT24C01 electrically alterable memory and micro-power radio frequency reflector RF003 form, study interface (B) joins with the study interface (A) of master remote controller, address code and command code that master remote controller is sent here the pulse train from data port all deposit internal register in, import by button AN1-AN4, single-chip microcomputer is with the writing data into memory in the internal register, the data of corresponding address section are formed address code and the command code pulse train outputs to the modulated RF reflector from I/O mouth RAO, with its signal modulate emission.
7. intelligent radio remote control electric appliance switch system according to claim 1, it is characterized in that: little electric current capacitor voltage-dropping power supply that a plurality of terminal wireless receiving keys are made up of C1-C3, D1 and D2, little power consumption RF wireless receiving module RF001, single-chip microcomputer PIC16C54, electrically alterable memory AT24C01 and controllable silicon T1 form, the radiofrequency signal that is given off by remote controller receives piece (RF001) receiving demodulation through radio frequency, pulse train after the shaping is sent into single-chip microcomputer IC2 through R1, address code in the pulse train that IC2 sends RF001 here and the contrast of the address code in the memory IC 1.
8. intelligent radio remote control electric appliance switch system according to claim 1, it is characterized in that: little electric current capacitor voltage-dropping power supply that a plurality of terminal wireless receiving keys are made up of C1-C3, D1 and D2, little power consumption RF wireless receiving module RF001, single-chip microcomputer PIC16C54, electrically alterable memory AT24C01 and controllable silicon T1 form, be connected a current sense transformer TT between D2 and power supply, D5, D6 are used for guaranteeing that as pressure limiting the first pole tension of TT is stabilized in about 0.7V when the load variations.
9. according to claim 7 or 8 described intelligent radio remote control electric appliance switch systems, it is characterized in that: study interface (C) and the study interface (A) of master remote controller or the study mouth (B) of the fixing type telecontrol device by study join, address code and control code that single-chip microcomputer will be learnt in mouthful pulse train of sending into all deposit in the memory.
10. intelligent radio remote control electric appliance switch system according to claim 1, the RA2 pin that it is characterized in that single-chip microcomputer PIC16C54 is a high level, receive RA3 input data, the address of receiving data is deposited among the EEPROM, and with EEPROM in corresponding address code relatively, carry out outputs such as corresponding open and close, light modulation, time-delay and drive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00122150 CN1335679A (en) | 2000-07-22 | 2000-07-22 | Intelligent radio remote control electric appliance switch system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00122150 CN1335679A (en) | 2000-07-22 | 2000-07-22 | Intelligent radio remote control electric appliance switch system |
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| CN1335679A true CN1335679A (en) | 2002-02-13 |
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| CN 00122150 Pending CN1335679A (en) | 2000-07-22 | 2000-07-22 | Intelligent radio remote control electric appliance switch system |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100365668C (en) * | 2004-06-25 | 2008-01-30 | 孙增军 | Multi-control-multi intelligent type wireless remote control device and method |
| CN101938069A (en) * | 2010-08-05 | 2011-01-05 | 珠海东之尼电子科技有限公司 | Intelligent remote control socket |
| CN101950162A (en) * | 2010-08-05 | 2011-01-19 | 珠海东之尼电子科技有限公司 | Intelligent remote switch |
| CN101951247A (en) * | 2010-06-08 | 2011-01-19 | 江苏大学 | Universal multifunctional digital remote control electronic switch |
| CN102170728A (en) * | 2010-02-25 | 2011-08-31 | 奥斯兰姆有限公司 | Module and method for exciting dimmable driving device |
| CN105093998A (en) * | 2014-06-16 | 2015-11-25 | 宁波星宏智能技术有限公司 | Editable intelligent switch and control method |
| CN105573139A (en) * | 2016-02-18 | 2016-05-11 | 夏竹兵 | Switch panel and home control system |
| CN106060968A (en) * | 2016-05-30 | 2016-10-26 | 深圳市高为通信技术有限公司 | Bluetooth ad hoc network packet system and method |
| CN106054825A (en) * | 2016-04-27 | 2016-10-26 | 杭州鸿雁电器有限公司 | Portable control device |
| CN108320486A (en) * | 2018-03-30 | 2018-07-24 | 深圳市全安现代科技有限责任公司 | A kind of remote controler controls system more |
| CN108900397A (en) * | 2018-07-09 | 2018-11-27 | 武汉科技大学 | A kind of intelligent switch system |
| CN111818891A (en) * | 2018-03-12 | 2020-10-23 | 八乐梦床业株式会社 | Control device and electric furniture |
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2000
- 2000-07-22 CN CN 00122150 patent/CN1335679A/en active Pending
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100365668C (en) * | 2004-06-25 | 2008-01-30 | 孙增军 | Multi-control-multi intelligent type wireless remote control device and method |
| CN102170728A (en) * | 2010-02-25 | 2011-08-31 | 奥斯兰姆有限公司 | Module and method for exciting dimmable driving device |
| CN101951247A (en) * | 2010-06-08 | 2011-01-19 | 江苏大学 | Universal multifunctional digital remote control electronic switch |
| CN101938069A (en) * | 2010-08-05 | 2011-01-05 | 珠海东之尼电子科技有限公司 | Intelligent remote control socket |
| CN101950162A (en) * | 2010-08-05 | 2011-01-19 | 珠海东之尼电子科技有限公司 | Intelligent remote switch |
| CN105093998B (en) * | 2014-06-16 | 2017-11-17 | 宁波星宏智能技术有限公司 | The control method of editable intelligent switch |
| CN105093998A (en) * | 2014-06-16 | 2015-11-25 | 宁波星宏智能技术有限公司 | Editable intelligent switch and control method |
| CN105573139A (en) * | 2016-02-18 | 2016-05-11 | 夏竹兵 | Switch panel and home control system |
| CN105573139B (en) * | 2016-02-18 | 2018-07-31 | 夏竹兵 | A kind of switch panel and house control system |
| CN106054825A (en) * | 2016-04-27 | 2016-10-26 | 杭州鸿雁电器有限公司 | Portable control device |
| CN106054825B (en) * | 2016-04-27 | 2024-08-20 | 杭州鸿雁电器有限公司 | Portable control device |
| CN106060968A (en) * | 2016-05-30 | 2016-10-26 | 深圳市高为通信技术有限公司 | Bluetooth ad hoc network packet system and method |
| CN111818891A (en) * | 2018-03-12 | 2020-10-23 | 八乐梦床业株式会社 | Control device and electric furniture |
| US11540645B2 (en) | 2018-03-12 | 2023-01-03 | Paramount Bed Co., Ltd | Control device and electric furniture |
| CN108320486A (en) * | 2018-03-30 | 2018-07-24 | 深圳市全安现代科技有限责任公司 | A kind of remote controler controls system more |
| CN108900397A (en) * | 2018-07-09 | 2018-11-27 | 武汉科技大学 | A kind of intelligent switch system |
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Applicant after: Chen Hongxian Applicant after: Chen Dingren Applicant after: Koninklike Philips Electronics N. V. Applicant before: Shenzhen homeWell Intelligence Technology Co. Ltd. |
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Free format text: CORRECT: APPLICANT; FROM: SHENCHOUFUHONG GRANVILLE-TECHNOLOGY LIMITED TO: CHEN HONGXIAN; CHEN DINGREN; ROYAL PHILIPS ELECTRONICS CO., LTD. |
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