WO2018107672A1 - Circuit de réception modulée en fréquence, lampe, et procédé de lecture audio associé - Google Patents

Circuit de réception modulée en fréquence, lampe, et procédé de lecture audio associé Download PDF

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Publication number
WO2018107672A1
WO2018107672A1 PCT/CN2017/087147 CN2017087147W WO2018107672A1 WO 2018107672 A1 WO2018107672 A1 WO 2018107672A1 CN 2017087147 W CN2017087147 W CN 2017087147W WO 2018107672 A1 WO2018107672 A1 WO 2018107672A1
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WO
WIPO (PCT)
Prior art keywords
receiving
frequency
electrically connected
amplifier
microprocessor
Prior art date
Application number
PCT/CN2017/087147
Other languages
English (en)
Chinese (zh)
Inventor
黄新
陈辉萍
张文彬
汪序凯
朱荆莲
彭灵
俞伟良
钟城广
肖胜男
王炳锋
黄睿
陈海裕
黄广亮
陈进银
张燕
唐志元
王岩
Original Assignee
深圳佳比泰智能照明股份有限公司
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Application filed by 深圳佳比泰智能照明股份有限公司 filed Critical 深圳佳比泰智能照明股份有限公司
Publication of WO2018107672A1 publication Critical patent/WO2018107672A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/12—Circuits for transducers, loudspeakers or microphones for distributing signals to two or more loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2430/00—Signal processing covered by H04R, not provided for in its groups

Definitions

  • the invention relates to the technical field of frequency modulation communication, in particular to an FM receiving circuit, a lamp and an audio playing method thereof.
  • the object of the present invention is to provide a frequency modulation receiving circuit, a lamp and an audio playing method thereof, which solve the problem that the remote control technology has weak anti-interference ability, is inconvenient in networking, has high reliability, and is difficult to realize a group between multiple music light sources.
  • the network function does not solve the technical solution of the lighting music networking through frequency modulation.
  • the present invention provides a frequency modulation receiving circuit, including:
  • An FM receiving antenna for receiving a frequency modulated signal
  • the FM receiving chip is electrically connected to the FM receiving antenna
  • a receiving frequency encoding switch for adjusting a receiving frequency point, electrically connected to the receiving microprocessor
  • An amplifier electrically connected to the FM receiving chip
  • a speaker is electrically connected to the amplifier.
  • the method further includes:
  • the power supply device is electrically connected to the amplifier, the FM receiving chip, and the receiving microprocessor.
  • the power supply device includes:
  • a power supply circuit for providing a first voltage, electrically connected to the amplifier
  • a voltage stabilizing circuit for connecting the first voltage to output a second voltage, wherein an input end is connected to the power supply circuit, and an output end thereof is electrically connected to the FM receiving chip and the receiving microprocessor.
  • the receiving frequency encoding switch includes three sub-switches connected in parallel to switch the receiving frequency point of the FM receiving antenna.
  • the method further includes:
  • a receiving LED for displaying a state of receiving the FM signal is electrically connected to the receiving microprocessor.
  • the amplifier is a class AB amplifier.
  • a luminaire including an FM receiving circuit as described above.
  • an audio playback method for a luminaire providing one or more luminaires as described above, including the steps of:
  • the amplified audio signal is played through the speaker.
  • the step of controlling the receiving frequency point of the FM receiving antenna by the receiving microprocessor and the receiving frequency encoding switch comprises the following sub-steps:
  • the receiving frequency point is determined according to the states of the three sub-switches.
  • the method further includes the steps of:
  • the FM receiving chip and the receiving microprocessor are powered by a second voltage.
  • the beneficial effects of the present invention are that, by setting different frequency points to receive external audio signals by frequency modulation, not only the anti-interference ability of the remote control technology is improved, but also the reliability of the smart home communication is improved; by setting a plurality of speaker nodes or lamps Realize the music networking function between multiple nodes or lamps to improve people's life experience and enrich the smart home control function.
  • FIG. 1 is a block diagram of a frequency modulation receiving circuit provided by the present invention.
  • FIG. 2 is a schematic structural diagram of a frequency modulation receiving antenna, a frequency modulation receiving chip, a receiving microprocessor, and a receiving frequency encoding switch according to an embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of an amplifier, a horn, and a power supply device according to an embodiment of the present invention.
  • the invention provides an FM receiving circuit 100, a lamp and an audio playing method thereof, the purpose of which is to receive an external audio signal through frequency modulation communication, improve the anti-interference ability of the remote control technology by setting different frequency points, and improve the reliability of the smart home communication.
  • Sexuality by setting up multiple speakers 6 nodes or lamps to achieve music networking functions between multiple nodes or lamps, improve people's life experience, enrich the smart home control functions.
  • FIG. 1 is a block diagram of a frequency modulation receiving circuit 100 according to the present invention.
  • the FM receiving circuit 100 includes an FM receiving antenna 1, a FM receiving chip 2, a receiving microprocessor 3, a receiving frequency encoding switch 4, and an amplifier. 5 and speaker 6.
  • the FM receiving antenna 1 is for receiving a frequency modulated signal, and the frequency range of the receiving is 88 MHz-110 MHz.
  • the FM receiving chip 2 is electrically connected to the FM receiving antenna 1; see FIG. 2, FIG. 2 is an FM receiving antenna 1, an FM receiving chip 2, a receiving microprocessor 3, and receiving according to an embodiment of the present invention.
  • Schematic diagram of the frequency encoding switch 4 the FM receiving chip 2 is U2 in FIG. 2, the port FMIN is connected to one end of the capacitor C25, and the other end of the capacitor C25 is connected to one end of the capacitor C10, one end of the inductor L5, and one end of the capacitor C11.
  • the other end of the capacitor C10 and the other end of the inductor L5 are grounded, the other end of the capacitor C11 is connected to one end of the inductor L4, and the other end of the inductor L4 is connected to the FM receiving antenna 1.
  • the receiving microprocessor 3 is electrically connected to the FM receiving chip 2; the receiving microprocessor 3 is the MCU 2 in FIG. 2, its port 5 is connected to the port SDA of U2, and the port 6 is connected to the port SCLK of U2.
  • the receiving frequency encoding switch 4 for adjusting the receiving frequency point is electrically connected to the receiving microprocessor 3; the receiving frequency encoding switch 4 comprises three sub-switches connected in parallel to switch the receiving frequency of the FM receiving antenna 1 point.
  • the three sub-switches are sub-switch A, sub-switch B and sub-switch C, one end of sub-switch A, sub-switch B and sub-switch C are grounded, and the other end of sub-switch A is connected to port 3 of MCU 2 through resistor R17.
  • the other end of the sub-switch B is connected to the port 4 of the MCU 2 via a resistor R14, and the other end of the sub-switch C is connected to the port 7 of the MCU 2 via a resistor R21.
  • the amplifier 5 is electrically connected to the FM receiving chip 2; the amplifier 5 is a class AB amplifier 5, and the class AB amplifier 5 is a combination device of the class A and class B amplifiers 5 depending on the magnitude and output level of the bias current.
  • the bias of the class AB amplifier 5 is between the class A amplifier 5 and the class B amplifier 5.
  • the efficiency of class AB is much greater than that of class A amplifier 5 and slightly lower than class B amplifier 5.
  • the bias of the class AB amplifier 5 allows the working sections of the two transistors operating in the push-pull mode to overlap each other. At the same time, since the class AB amplifier does not interfere with the FM receiving band, it is very suitable for this device. Referring to FIG. 3, FIG.
  • FIG. 3 is a schematic structural diagram of an amplifier 5, a horn 6 and a power supply device 7 according to an embodiment of the present invention.
  • the amplifier 5 is U3 in FIG. 3, and the port 4 sequentially passes through a resistor R36, a capacitor C32, and an inductor L7. Resistor R34 and capacitor C28 are connected to interface 101. As shown in Figure 2, interface 101 is coupled via resistor R33 to port ROUT of U2. Port 3 of U3 is connected to one end of the resistor R20, and the other end of the resistor R20 is connected to one end of the capacitor C30 and connected between the inductor L7 and the resistor R34. The other end of the capacitor C30 is connected to one end of the capacitor C29 and connected to the resistor R34.
  • the interface 102 is connected to the port LOUT of U2 through a resistor R31.
  • Port 2 of U3 is connected to one end of capacitor C34, the other end of C34 is connected to one end of resistor R20 and one end of resistor R18, the other end of resistor R18 is connected to capacitor C13, and the other end of capacitor C13 is connected. Connected between inductor L7 and resistor R34.
  • the horn 6 is electrically connected to the amplifier 5.
  • One end of the speaker 6 is connected to one end of the capacitor C15 and one end of the inductor L2
  • the other end of the speaker 6 is connected to one end of the capacitor C16 and one end of the inductor L3
  • the other end of the inductor L2 is connected to the port 5 of the U3, and the other end of the inductor L3 Connect to port 8 of U3.
  • the FM receiving circuit 100 further includes a power supply device 7 electrically connected to the amplifier 5, the FM receiving chip 2, and the receiving microprocessor 3.
  • the power supply device 7 includes a power supply circuit 71 and a voltage stabilization circuit 72.
  • the power supply circuit 71 is configured to provide a first voltage electrically connected to the port 6 of the amplifier 5; the first voltage is preferably +3.6-8V.
  • a voltage stabilizing circuit 72 for connecting the first voltage to output a second voltage, an input end of which is connected to the power supply circuit 71, an output end of which is electrically connected to the FM receiving chip 2 and the receiving micro processing Device 3.
  • the second voltage is preferably 3.3V, and the second voltage is connected to port 1 of MCU2 and port VDD of U2.
  • the FM receiving circuit 100 further includes a receiving LED lamp RX-LED, and a receiving LED lamp for receiving the FM signal RX-LED for displaying the FM signal receiving state, and is electrically connected to the receiving microprocessor 3 .
  • the anode of the receiving LED lamp RX-LED is connected to port 2 of the MCU 2 via a resistor R16.
  • the FM receiving circuit 100 can be applied to a luminaire, such as a downlight, to achieve an indoor surround sound effect by installing a plurality of downlights including the FM receiving circuit 100 at different positions of a ceiling in the same room.
  • the FM transmitter has two audio inputs: wired input and wireless input.
  • the wired input can be connected to the audio signal of the TV, CD player or other device through the AUX interface on the transmitter; the wireless input is connected via Bluetooth.
  • the audio signal played by the Bluetooth paired mobile phone can be transmitted out for playing by multiple receiving units, thereby realizing the interaction between the light and the music. It can be installed indoors from the audio, such as next to the TV set.
  • the FM transmitter By setting the FM transmitter, the sound of the TV set is sent to the plurality of receiving units through the FM transmitter, and the plurality of receiving units can pass the FM receiving circuit 100. Sound at the same time.
  • an audio playback method for a luminaire is provided, providing one or more luminaires as described above, such as mounting a plurality of downlights, including steps S1-S5:
  • step S1 controlling, by the receiving microprocessor 3 and the receiving frequency encoding switch 4, a receiving frequency point of the FM receiving antenna 1; for example, each downlight is encoded by the receiving microprocessor 3 and the receiving frequency
  • the switch 4 controls the receiving frequency point of the FM receiving antenna 1, and the step S1 includes sub-steps S11-S12:
  • F1 F2 F3 F4 F5 F6 F7 F8 A 0 0 0 1 1 1 1 B 0 0 1 1 0 0 1 1 C 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
  • S12. Determine the receiving frequency point according to states of the three sub-switches. For example, f1 is 88 MHz.
  • f1 is 88 MHz.
  • each of the downlights receives an external frequency modulated signal according to the receiving frequency point through the FM receiving antenna 1.
  • each of the downlights converts the FM signal into an audio signal through the FM receiving chip 2.
  • the audio signal is amplified by the amplifier 5.
  • each of the downlights amplifies the audio signal through the amplifier 5.
  • the amplified audio signal is played by the speaker 6.
  • each of the downlights plays the amplified audio signal through the speaker 6.
  • the effect of indoor surround sound can be achieved by installing a plurality of downlights including the FM receiving circuit 100 at different positions of the ceiling in the same room.
  • the audio playing method further includes steps S6-S7:
  • the amplifier 5 is powered by a first voltage.
  • the first voltage is preferably +3.6-8V.
  • the FM receiving chip 2 and the receiving microprocessor 3 are powered by a second voltage.
  • the second voltage is preferably +3.3V. Since the lamp itself has a power take-off wire, it is not necessary to additionally provide an external wire, and it is only necessary to connect the power supply circuit 71 to the power supply line of the lamp itself. Reasonable use of the resources of the lamps themselves, saving costs.
  • the one or operations may constitute computer readable instructions stored on one or a computer readable medium that, when executed by an electronic device, cause the computing device to perform the operations.
  • the order in which some or all of the operations are described should not be construed as implying that the operations must be sequential. Those skilled in the art will appreciate alternative rankings that have the benefit of this specification. Moreover, it should be understood that not all operations must be present in every embodiment provided herein.
  • the word "preferred” as used herein is intended to serve as an example, instance, or illustration. Any aspect or design described as “preferred” by the text is not necessarily to be construed as being more advantageous than other aspects or designs. Instead, the use of the word “preferred” is intended to present a concept in a specific manner.
  • the term “or” as used in this application is intended to mean an “or” or “an” That is, unless otherwise specified or clear from the context, "X employs A or B” means naturally including any one of the permutations. That is, if X uses A; X uses B; or X uses both A and B, then "X uses A or B" is satisfied in any of the foregoing examples.
  • Each functional unit in the embodiment of the present invention may be integrated into one processing module, or each unit may exist physically separately, or two or more units may be integrated into one module.
  • the above integrated modules can be implemented in the form of hardware or in the form of software functional modules.
  • the integrated modules, if implemented in the form of software functional modules and sold or used as stand-alone products, may also be stored in a computer readable storage medium.
  • the above mentioned storage medium may be a read only memory, a magnetic disk or an optical disk or the like.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Circuits Of Receivers In General (AREA)

Abstract

L'invention concerne un circuit de réception modulée en fréquence, une lampe, et un procédé de lecture audio associé. Le circuit de réception modulée en fréquence comprend : une antenne de réception modulée en fréquence utilisée pour recevoir un signal modulé en fréquence ; une puce de réception modulée en fréquence connectée électriquement à l'antenne de réception modulée en fréquence ; un microprocesseur de réception connecté électriquement à la puce de réception modulée en fréquence ; un commutateur de codage de fréquence reçue utilisé pour ajuster un point de fréquence reçue et connecté électriquement au microprocesseur de réception ; un amplificateur connecté électriquement à la puce de réception modulée en fréquence ; et un haut-parleur connecté électriquement à l'amplificateur. La présente invention est avantageuse en ce que : la configuration de différents points de fréquence pour la réception modulée en fréquence de signaux audio externes améliore à la fois la capacité antibrouillage d'une technologie de commande à distance et la fiabilité de communication d'une maison intelligente ; et la configuration d'une pluralité de nœuds ou de lampes de haut-parleur et l'exécution d'une fonction de réseautage musical entre la pluralité de nœuds ou de lampes améliore l'expérience de vie des personnes et enrichit les fonctions de commande d'une maison intelligente.
PCT/CN2017/087147 2016-12-12 2017-06-05 Circuit de réception modulée en fréquence, lampe, et procédé de lecture audio associé WO2018107672A1 (fr)

Applications Claiming Priority (2)

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CN2016111434605 2016-12-12
CN201611143460.5A CN107872753A (zh) 2016-12-12 2016-12-12 一种调频接收电路、灯具及其音频播放方法

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WO2018107672A1 true WO2018107672A1 (fr) 2018-06-21

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CN111867218A (zh) * 2020-07-20 2020-10-30 苏州光之音光电科技有限公司 一种基于fm调频技术的太阳能庭院灯控制方法

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JP3162256U (ja) * 2009-06-18 2010-08-26 翔友光電科技股▲ふん▼有限公司 多機能電気スタンド
CN202889494U (zh) * 2012-09-26 2013-04-17 周平稻 双天线音视频无线调频接收机
CN202979414U (zh) * 2012-12-16 2013-06-05 王斌 多功能家用led照明灯具
CN203743967U (zh) * 2014-01-09 2014-07-30 卢言民 新型led台灯
CN204534421U (zh) * 2015-05-04 2015-08-05 唐由豫 太阳能无线音响草坪灯

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CN101499808B (zh) * 2008-12-10 2012-11-07 深圳市迪斯普科技有限公司 一种机械调谐广播接收机
CN201571793U (zh) * 2009-11-19 2010-09-08 东莞市三优电工有限公司 一种音乐相框
CN204119575U (zh) * 2013-12-10 2015-01-21 生迪光电科技股份有限公司 具有收音机功能的led照明装置及音箱***

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3162256U (ja) * 2009-06-18 2010-08-26 翔友光電科技股▲ふん▼有限公司 多機能電気スタンド
CN202889494U (zh) * 2012-09-26 2013-04-17 周平稻 双天线音视频无线调频接收机
CN202979414U (zh) * 2012-12-16 2013-06-05 王斌 多功能家用led照明灯具
CN203743967U (zh) * 2014-01-09 2014-07-30 卢言民 新型led台灯
CN204534421U (zh) * 2015-05-04 2015-08-05 唐由豫 太阳能无线音响草坪灯

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