CN113380019B - Copy remote controller control circuit capable of remotely copying remote controller signals - Google Patents
Copy remote controller control circuit capable of remotely copying remote controller signals Download PDFInfo
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- CN113380019B CN113380019B CN202110792864.1A CN202110792864A CN113380019B CN 113380019 B CN113380019 B CN 113380019B CN 202110792864 A CN202110792864 A CN 202110792864A CN 113380019 B CN113380019 B CN 113380019B
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/401—Circuits for selecting or indicating operating mode
Abstract
The invention discloses a remote controller copying control circuit capable of remotely copying remote controller signals, which comprises a power module circuit, a receiving module circuit, a singlechip module circuit, a transmitting module circuit, a key control module circuit and an LED indicator light module circuit, wherein the singlechip module circuit is provided with a resetting and voltage-stabilizing module circuit, the power module circuit is connected with the key control module circuit, and the key control module circuit, the receiving module circuit and the transmitting module circuit are connected with the singlechip module circuit; the invention adopts multiple modules for matching, and the modules are relatively independently controlled and coordinated to work, thereby effectively solving the problems of short copying distance, short remote control distance and the like, and being more reliable and more convenient for remote control of equipment.
Description
Technical Field
The invention relates to a copy remote controller control circuit capable of remotely copying remote controller signals.
Background
With the popularization of wireless remote control electric appliances, various electric appliances such as electric vehicles, door bells, street lamps, water pumps, rolling doors and other equipment are controlled by remote controllers. A wireless remote control is an electronic device used to remotely control a machine. The traditional copy remote controller is mainly internally composed of a simple wireless transceiving integrated circuit. The working principle is as follows: after a wireless receiving module of the copy remote controller receives a wireless signal transmitted by the remote controller to be copied, the signal is transmitted to a microprocessor module of the remote controller for identification processing, the microprocessor module receives a wireless signal code for storage and identification, and after the key code is memorized, the remote controller to be copied can control the same set of electronic equipment.
The traditional copy remote controller has the advantages of small shell volume, wireless transmitting module, wireless receiving module and microprocessor module which are all integrated on the same chip, few devices, low cost, simple circuit and poor anti-interference capability. There are also many inconveniences in the use process, mainly expressed as:
1. the copying distance is short, the circuit of a receiving module of the copying remote controller is too simple, so that two remote controllers which are copied with each other need to be close to each other, even the copying remote controller and the shell of the original equipment remote controller need to be detached and attached together, the method can be matched, the operation is very troublesome, and the condition that the remote controllers cannot be paired often exists.
2. The remote control distance is short, because the shell is small, the circuit is simple, the cost is saved, and the transmission module cannot be arranged by adopting a circuit with precision, amplification factor and higher power, so that the distance of the remote-controllable electronic equipment is short and is generally not more than 10 meters.
From the foregoing, it can be seen that the existing copy remote controller has great disadvantages in copying and using, and therefore, a new copy remote controller needs to be developed.
Disclosure of Invention
The invention aims to solve the technical problem of providing a copy remote controller control circuit which adopts a plurality of modules for matching, controls and coordinates the modules relatively independently, effectively solves the problems of short copy distance, short remote control distance and the like, can be used for remotely controlling equipment more reliably and conveniently, and has practicability and wide use and can remotely copy remote controller signals.
In order to solve the problems, the invention adopts the following technical scheme:
a remote controller copying control circuit capable of remotely copying remote controller signals comprises a power supply module circuit, a receiving module circuit, a single chip microcomputer module circuit, a transmitting module circuit, a key control module circuit and an LED indicator light module circuit, wherein the single chip microcomputer module circuit is provided with a resetting and voltage stabilizing module circuit, the power supply module circuit is connected with the key control module circuit, and the key control module circuit, the receiving module circuit and the transmitting module circuit are connected with the single chip microcomputer module circuit; the single chip microcomputer module circuit comprises a chip U2, the chip U2 is provided with 1-8 pins, the pin 1 and the pin 8 of the chip U2 are connected with a reset and voltage stabilization module circuit, the pin 2, the pin 5, the pin 6 and the pin 7 of the chip U2 are connected with a key control module circuit, the pin 3 of the chip U2 is connected with a receiving module circuit and an LED indicator light module circuit, and the pin 4 of the chip U2 is connected with a transmitting module circuit.
Preferably, the key control module circuit includes a key S1, a key S2, a key S3, and a key S4, one end of each of the key S1, the key S2, the key S3, and the key S4 is connected to a pin 7, a pin 6, a pin 5, and a pin 2 of the chip U2, the other end of each of the key S1, the key S2, the key S3, and the key S4 is connected in parallel to a resistor R6, one end of the resistor R6 is connected to a base of the transistor Q4, and a resistor R5 is connected between the resistor R4 and an emitter of the transistor Q4.
Preferably, a resistor R8, a resistor R9, a resistor R10 and a resistor R11 are respectively connected in parallel between the key S1, the key S2, the key S3 and the key S4 and the pin 7, the pin 6, the pin 5 and the pin 2 of the chip U2.
Preferably, the power module circuit comprises a chip U1, a plug connector J1 and a triode Q3, wherein a capacitor C1 and a capacitor C3 are connected in series at two ends of the chip U1, a field effect transistor Q1 and a field effect transistor Q2 are connected between the capacitor C1 and the plug connector J1, a resistor R2 is connected to a gate of the field effect transistor Q1, a capacitor C2 and a resistor R1 are connected in parallel between a source of the field effect transistor Q1 and a drain of the field effect transistor Q2, one end of the resistor R1 is connected with a gate of the field effect transistor Q2, a resistor R3 is connected between the gate of the field effect transistor Q2 and a collector of the triode Q3, a resistor R4 is connected to a base of the triode Q3, and one end of the resistor R4 is connected with a collector of the triode Q4.
Preferably, the receiving module circuit includes a chip U4, the chip U4 is provided with 1-8 pins, a pin 8 of the chip U82is connected with a crystal oscillator Y2, a pin 7 of the chip U is connected with a capacitor C15, a pin 6 of the chip U is connected with one end of a capacitor C15, a pin 5 of the chip U is connected with a resistor R17, a pin 4 of the chip U is connected with a capacitor C18, a pin 3 of the chip U is connected with one end of a capacitor C18 in parallel with a capacitor C17, a pin 2 of the chip U is connected with a capacitor C14, the capacitor C14 is connected with a plug connector J2, an inductor L5, a capacitor C16 and an inductor L6 are connected between the plug connector J2 and the pin 2 in parallel, and one end of the resistor R17 is connected with a pin 4 of the chip U2.
Preferably, the LED indicator lamp module circuit comprises a resistor R7 and a diode D1, and one end of the resistor R7 is connected to the pin 3 of the U2 chip.
Preferably, the transmitting module circuit includes a chip U3, the chip U3 is provided with 1-6 pins, a crystal oscillator Y1 is connected between the pin 1 and the pin 2, the pin 3 is connected in series with a resistor R14 and a resistor R16, the pin 5 is connected in series with a capacitor C9, an inductor L4 and a field effect transistor Q5 in sequence, the pin 6 is connected with a capacitor C6, two ends of the capacitor C9 are respectively connected in parallel with an inductor L2 and a capacitor C12, the inductor L2 is connected in parallel with a capacitor C7, a resistor R12 is connected in parallel between the inductor L4 and the gate of the field effect transistor Q5, one end of the resistor R12 is connected in parallel with a capacitor C5, and one end of the resistor R14 is connected in parallel between the resistor R7 and the pin 3 of the chip U2.
Preferably, a resistor R15 is connected between the source of the field-effect transistor Q5 and the inductor L4, an inductor L1 is connected in series to the drain of the field-effect transistor Q5, a capacitor C4 is connected in parallel to one end of the inductor L1, an inductor L3 and a capacitor C8 are connected in parallel between the drain of the field-effect transistor Q5 and the inductor L1, a diode D2 and a capacitor C10 are connected in parallel between the inductor L3 and the drain of the field-effect transistor Q5, and a capacitor C11 and a resistor R13 are connected in parallel to two ends of the capacitor C8.
Preferably, the reset and voltage regulation module circuit comprises a capacitor C13, and the capacitor C13 is connected with pin 1 and pin 8 of the U2 chip.
The invention has the beneficial effects that: through the cooperation of the multiple module circuits, the module circuits are independently controlled and mutually coordinated, so that the receiving distance of the remote copy remote controller can reach about 20 meters when other remote controllers are copied, and far exceeds the receiving distance of the traditional copy remote controller by 0-5 centimeters, and the remote control distance can reach 500 meters when electronic equipment is remotely controlled, and far exceeds the remote controller of the traditional remote controller by 10 meters; meanwhile, the circuit is more stable, the using effect is more reliable, the electronic equipment is more conveniently controlled, and the convenience of life and the working efficiency of production are greatly improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, but the present invention is not limited to the scope of the present invention.
FIG. 1 is a schematic circuit diagram of a power module according to the present invention;
FIG. 2 is a schematic circuit diagram of a key control module according to the present invention;
FIG. 3 is a schematic circuit diagram of a single-chip microcomputer module according to the present invention;
FIG. 4 is a schematic circuit diagram of an LED indicator light module according to the present invention;
FIG. 5 is a circuit diagram of a receiving module according to the present invention;
FIG. 6 is a circuit diagram of a transmitter module according to the present invention;
FIG. 7 is a schematic diagram of a copy remote control according to the present invention;
Detailed Description
Referring to fig. 1 to 7, a copy remote controller control circuit capable of remotely copying remote controller signals includes a power module circuit, a receiving module circuit, a single chip module circuit, a transmitting module circuit, a key control module circuit and an LED indicator light module circuit, wherein the single chip module circuit is provided with a reset and voltage stabilization module circuit, the power module circuit is connected with the key control module circuit, and the key control module circuit, the receiving module circuit and the transmitting module circuit are connected with the single chip module circuit; the single chip microcomputer module circuit comprises a chip U2, the chip U2 is provided with 1-8 pins, the pin 1 and the pin 8 of the chip U2 are connected with a reset and voltage stabilization module circuit, the pin 2, the pin 5, the pin 6 and the pin 7 of the chip U2 are connected with a key control module circuit, the pin 3 of the chip U2 is connected with a receiving module circuit and an LED indicator light module circuit, and the pin 4 of the chip U2 is connected with a transmitting module circuit.
Further, the key control module circuit includes a key S1, a key S2, a key S3, and a key S4, wherein one end of the key S1, the key S2, the key S3, and the key S4 is connected to a pin 7, a pin 6, a pin 5, and a pin 2 of the chip U2, the other end of the key S1, the key S2, the key S3, and the key S4 is connected in parallel to a resistor R6, the resistor R6 is 47K, one end of the resistor R6 is connected to a base of the transistor Q4, a resistor R5 is connected between the resistor R4 and an emitter of the transistor Q4, and the resistor R5 is 27K.
Furthermore, a resistor R8, a resistor R9, a resistor R10 and a resistor R11 are respectively connected in parallel between the connection of the key S1, the key S2, the key S3 and the key S4 and the connection of the pin 7, the pin 6, the pin 5 and the pin 2 of the chip U2, and the resistor R8, the resistor R9, the resistor R10 and the resistor R11 are all 10K.
Further, the power module circuit comprises a chip U1, a plug connector J1 and a triode Q3, wherein a capacitor C1 and a capacitor C3 are connected in series at two ends of the chip U1, a field effect tube Q1 and a field effect tube Q2 are connected between the capacitor C1 and the plug connector J1, a resistor R2 is connected to a grid electrode of the field effect tube Q1, the resistor R2 is 470K, a capacitor C2 and a resistor R1 are connected in parallel between a source electrode of the field effect tube Q1 and a drain electrode of the field effect tube Q2, the resistor R1 is 27K, one end of the resistor R1 is connected with the grid electrode of the field effect tube Q2, a resistor R3 is connected between the grid electrode of the field effect tube Q2 and a collector electrode of the triode Q3, the resistor R3 is 1K, a base electrode resistor R4 is connected to the triode Q3, the resistor R4 is 10K, and one end of the resistor R4 is connected with the collector electrode of the triode Q4.
Further, the receiving module circuit includes a chip U4, the chip U4 is provided with 1-8 pins, a pin 8 of the chip U4 is connected with a crystal oscillator Y2, a pin 7 of the chip U3832 is connected with a capacitor C15, a pin 6 of the chip U3832 is connected with one end of a capacitor C15, a pin 5 of the chip U3883 is connected with a resistor R17, the resistor R17 is 1K, a pin 4 of the chip U3875 is connected with a capacitor C18, one ends of a pin 3 and the capacitor C18 are connected in parallel with a capacitor C17, a pin 2 of the pin C14 is connected with a capacitor C14, the connector J2 is connected with the connector J2, an inductor L5, a capacitor C16 and an inductor L6 are connected between the pin 2 in parallel, and one end of the resistor R17 is connected with the pin 4 of the chip U2.
Further, the LED indicator lamp module circuit comprises a resistor R7 and a diode D1, wherein one end of the resistor R7 is connected with a pin 3 of the U2 chip.
Further, the transmitting module circuit comprises a chip U3, the chip U3 is provided with 1-6 pins, a crystal oscillator Y1 is connected between the pin 1 and the pin 2, the pin 3 is connected in series with a resistor R14 and a resistor R16 in parallel, the resistor R14 is 1K, the resistor R16 is 10K, the pin 5 is connected in series with a capacitor C9, an inductor L4 and a field effect transistor Q5 in sequence, the pin 6 is connected with a capacitor C6, two ends of the capacitor C9 are respectively connected in parallel with an inductor L2 and a capacitor C12, the inductor L2 is connected in parallel with a capacitor C7, a resistor R12 is connected in parallel between the inductor L4 and the gate of the field effect transistor Q5, the resistor R12 is 15K, one end of the resistor R12 is connected in parallel with a capacitor C5, and one end of the resistor R14 is connected in parallel between the resistor R7 and the pin 3 of the chip U2.
Further, a resistor R15 is connected between a source of the field effect transistor Q5 and the inductor L4, the resistor R15 is 27K, an inductor L1 is connected in series to a drain of the field effect transistor Q5, a capacitor C4 is connected in parallel to one end of the inductor L1, an inductor L3 and a capacitor C8 are connected in parallel to a drain of the field effect transistor Q5 and the inductor L1, a diode D2 and a capacitor C10 are connected in parallel to a drain of the inductor L3 and the field effect transistor Q5, a capacitor C11 and a resistor R13 are connected in parallel to two ends of the capacitor C8, the resistor R13 is 1K, and one end of the resistor R13 is connected to the wireless antenna ANT.
Further, the reset and voltage regulation module circuit comprises a capacitor C13, and the capacitor C13 is connected with the pin 1 and the pin 8 of the U2 chip.
The power module circuit is used for converting 12V voltage into 5V voltage to supply power to each part of the circuit.
When the invention is used, firstly, the information of the stored key codes (restored to the factory mode) is emptied;
simultaneously pressing an S1 key, an S2 key of the key control module circuit for three seconds or other keys; triggering the power module circuit to supply power; triggering the reset and voltage stabilization module circuit (singlechip module circuit) to enter a reset working state; the singlechip module circuit flashes rapidly through a diode D1 on the LED indicator lamp module circuit connected with the pin 3, and the codes in the copy remote controller are completely emptied (namely, the copy remote controller returns to a factory mode).
It is required that when copying the foreign wireless remote control signal:
pressing a certain key (S1, S2, S3, S4) of the key control module circuit for three seconds to trigger the power supply module circuit to supply power; at the moment, a pin 4 of the singlechip module circuit is communicated to the receiving module circuit part, and a diode D1 of the LED indicator lamp module circuit flickers twice to represent that the receiving module circuit enters an external signal receiving state; after a certain key of the remote controller to be copied is pressed, the chip U4 and the peripheral circuit receive signals, the coded signals are transmitted to the pin 4 of the chip U2 (model FT60F021) through the pin 5, the signals are decoded and stored by the chip U2, and the signals are marked as the code of the key; after the signal codes are copied successfully, a diode D1 connected with a driving pin 3 of the singlechip module circuit is normally lightened, and the signal copying is finished; when a key on the remote controller is pressed, the chip U2 transmits the code which is stored and marked as the key through the transmitting module circuit.
The model number of the chip U1 is as follows: HT 7536; the model number of the chip U2 is as follows: FT60F021-SOP8, the chip U2 embeds a microprocessor and a memory chip and is connected with a receiving module circuit and a transmitting module circuit; the model number of the chip U3 is as follows: 2SC 3356; the model number of the chip U4 is as follows: SYN 480; the key control module circuit is a switch (S1, S2, S3, S4) manual control part; the reset and voltage-stabilizing module circuit is arranged in the singlechip module circuit and plays a role in stabilizing voltage and clearing codes.
The invention has independent receiving and transmitting circuits, independent receiving chip and circuit, and uses single chip to coordinate, to improve the signal copy distance to 10-30 m; and on the transmitting circuit, a field effect tube Q5 is adopted for power amplification, so that the remote control distance is greatly increased, and reaches 100-500 m, which far exceeds the remote control of the traditional remote control by 10 m. Meanwhile, the circuit performance is more stable, the using effect is more reliable, the electronic equipment is more conveniently controlled, and the convenience of life and the working efficiency of production are greatly improved.
The chip U1, the chip U2, the chip U3 and the chip U4 can also be called single-chip microcomputers.
The above is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.
Claims (4)
1. A remote controller copying control circuit capable of copying remote controller signals remotely comprises a power module circuit, a receiving module circuit, a single chip microcomputer module circuit, a transmitting module circuit, a key control module circuit and an LED indicator light module circuit, wherein the single chip microcomputer module circuit is provided with a resetting and voltage stabilizing module circuit, the power module circuit is connected with the key control module circuit, and the key control module circuit, the receiving module circuit and the transmitting module circuit are connected with the single chip microcomputer module circuit; the single chip microcomputer module circuit comprises a chip U2, the chip U2 is provided with 1-8 pins, the pin 1 and the pin 8 of the chip U2 are connected with a reset and voltage stabilization module circuit, the pin 2, the pin 5, the pin 6 and the pin 7 of the chip U2 are connected with a key control module circuit, the pin 3 of the chip U3 is connected with an emission module circuit and an LED indicator lamp module circuit, the pin 4 of the chip U3 is connected with a receiving module circuit, the key control module circuit comprises a key S1, a key S2, a key S3, a key S4, a key S1, a key S2, a key S3 and one end of a key S4 which are respectively connected with the pin 7, the pin 6, the pin 5 and the pin 2 of the chip U2, the other ends of the key S1, the key S2, the key S3 and the key S4 are connected in parallel with a resistor R6, one end of the resistor R6 is connected with a base of a triode Q4, and a resistor R4 and a resistor 5 are connected between the emission stage of the triode Q4; the method is characterized in that: the power module circuit comprises a chip U1, a plug connector J1 and a triode Q3, wherein a capacitor C1 and a capacitor C3 are connected in series at two ends of the chip U1, a field effect tube Q1 and a field effect tube Q2 are connected between the capacitor C1 and the plug connector J1, a resistor R2 is connected to the grid of the field effect tube Q1, a capacitor C2 and a resistor R1 are connected in parallel between the source of the field effect tube Q1 and the drain of the field effect tube Q2, one end of the resistor R1 is connected with the grid of the field effect tube Q2, a resistor R3 is connected between the grid of the field effect tube Q2 and the collector of the triode Q3, the base of the triode Q3 is connected with a resistor R4, and one end of the resistor R4 is connected with the collector of the triode Q4; the LED indicator lamp module circuit comprises a resistor R7 and a diode D1, wherein one end of a resistor R7 is connected with a pin 3 of a U2 chip; the emitting module circuit comprises a chip U3, wherein a chip U3 is provided with 1-6 pins, a crystal oscillator Y1 is connected between the pin 1 and the pin 2, a resistor R14 and a resistor R16 are connected in series with the pin 3, a capacitor C9, an inductor L4 and a field effect tube Q5 are sequentially connected in series with the pin 5, the pin 6 is connected with a capacitor C6, two ends of the capacitor C9 are respectively connected in parallel with an inductor L2 and a capacitor C12, a capacitor C7 is connected in parallel with the inductor L2, a resistor R12 is connected in parallel between the inductor L4 and a grid of the field effect tube Q5, one end of the resistor R12 is connected in parallel with a capacitor C5, and one end of the resistor R14 is connected in parallel between the resistor R7 and the pin 3 of the chip U2; a resistor R15 is connected between the source of the field effect transistor Q5 and the inductor L4, an inductor L1 is connected in series on the drain of the field effect transistor Q5, a capacitor C4 is connected in parallel at one end of the inductor L1, an inductor L3 and a capacitor C8 are connected in parallel between the drain of the field effect transistor Q5 and the inductor L1, a diode D2 and a capacitor C10 are connected in parallel between the drain of the inductor L3 and the drain of the field effect transistor Q5, and a capacitor C11 and a resistor R13 are connected in parallel at two ends of the capacitor C8.
2. A copy remote control circuit for remotely copying a remote control signal according to claim 1, wherein: and a resistor R8, a resistor R9, a resistor R10 and a resistor R11 are respectively connected in parallel among the keys S1, S2, S3 and S4, and the pins 7, 6, 5 and 2 of the chip U2.
3. A copy remote control circuit for remotely copying a remote control signal according to claim 1, wherein: the receiving module circuit comprises a chip U4, wherein a chip U4 is provided with 1-8 pins, a pin 8 of the chip U4 is connected with a crystal oscillator Y2, a pin 7 of the chip U4 is connected with a capacitor C15, a pin 6 of the chip U4 is connected with one end of a capacitor C15, a pin 5 of the chip U4 is connected with a resistor R17, a pin 4 of the chip U18 is connected with a capacitor C18, a pin 3 of the chip U18 is connected with the capacitor C17 in parallel, a pin 2 of the chip U3526 is connected with the capacitor C14, the capacitor C14 is connected with a plug connector J2, an inductor L5, a capacitor C16 and an inductor L6 are connected between the plug connector J2 and the pin 2 in parallel, and one end of the resistor R17 is connected with the pin 4 of the U2 chip.
4. A copy remote control circuit for remotely copying a remote control signal as claimed in claim 1, wherein: the reset and voltage regulation module circuit comprises a capacitor C13, and a capacitor C13 is connected with a pin 1 and a pin 8 of the U2 chip.
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| CN202110792864.1A CN113380019B (en) | 2021-07-14 | 2021-07-14 | Copy remote controller control circuit capable of remotely copying remote controller signals |
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| CN202110792864.1A CN113380019B (en) | 2021-07-14 | 2021-07-14 | Copy remote controller control circuit capable of remotely copying remote controller signals |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100559314C (en) * | 2007-09-06 | 2009-11-11 | 江南大学 | Electric scooter radio remote controller and controller |
| CN104895565A (en) * | 2015-06-25 | 2015-09-09 | 中国矿业大学(北京) | Remote control system for electromagnetic speed-regulating coal mining machine |
| CN106627058A (en) * | 2016-12-21 | 2017-05-10 | 广州市奔创电子科技有限公司 | Intelligent power supply controller for car window film |
| CN209046625U (en) * | 2018-11-17 | 2019-06-28 | 东莞盛世科技电子实业有限公司 | A kind of wireless transmitter |
| CN110005331B (en) * | 2019-04-19 | 2022-05-24 | 健达创智科技股份有限公司 | Wireless electric curtain control system |
| CN210696877U (en) * | 2019-08-19 | 2020-06-09 | 深圳市中际高科电子有限公司 | Child falling prevention bed device and falling prevention bed |
| CN210199979U (en) * | 2019-08-29 | 2020-03-27 | 苏州锐迪联电子科技有限公司 | Novel self-copying remote controller circuit |
| CN212905952U (en) * | 2020-07-16 | 2021-04-06 | 杭州炜誉科技有限公司 | Parking stall lock remote controller automatic switching control equipment |
| CN215187827U (en) * | 2021-06-28 | 2021-12-14 | 厦门市沧鹏电子科技有限公司 | Copy remote controller capable of copying remote controller signal and increasing power transmission |
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