CN219329050U - Wireless remote control doorbell for deaf person - Google Patents
Wireless remote control doorbell for deaf person Download PDFInfo
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- CN219329050U CN219329050U CN202222885549.6U CN202222885549U CN219329050U CN 219329050 U CN219329050 U CN 219329050U CN 202222885549 U CN202222885549 U CN 202222885549U CN 219329050 U CN219329050 U CN 219329050U
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Abstract
The utility model relates to a wireless remote control doorbell for the deaf; when the power supply device is used, the power generated after the power generation pressing generator is pressed is output to the power supply circuit for rectification and voltage stabilization, and the power is output to the radio frequency code transmitting circuit after the voltage is detected to be qualified, so that the power supply is provided for the radio frequency code transmitting circuit; the radio frequency code receiving circuit triggers the delay circuit to control the laser pattern transmitting circuit or the vibration circuit to work after detecting the radio frequency signal transmitted by the radio frequency code transmitting circuit and stops after delaying for a certain time; the laser pattern transmitting circuit is used for transmitting a laser pattern, and the vibrating circuit is used for generating vibration; thereby realize reminding the deaf person to visit from the mode of sound, vibration to still carry out the code communication through radio frequency code receiving/transmitting circuit's cooperation, improved interference killing feature greatly, still set up from the electricity generation press generator in order to provide power supply at doorbell trigger end, avoided changing the loaded down with trivial details of battery or going on the line power supply outside the door, improved user experience greatly.
Description
Technical Field
The utility model relates to the technical field of doorbell circuits, in particular to a wireless remote control doorbell for the deaf.
Background
The Chinese patent application number 202020057438.4 discloses a method for preparing the Chinese patent application number: the doorbell for the deaf person, but the radio frequency remote control part of the doorbell does not carry out coded communication, has poor anti-interference capability, and the doorbell trigger end of the doorbell also needs to be provided with a battery, so that the doorbell is more complicated to use and has low intelligent degree.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a wireless remote control doorbell for the deaf with coded communication and a doorbell trigger end free-of-contact battery aiming at the defects in the prior art.
The technical scheme adopted for solving the technical problems is as follows:
constructing a wireless remote control doorbell for the deaf person, which comprises a self-generating doorbell remote control trigger circuit and a plurality of doorbell response circuits matched with the self-generating doorbell remote control trigger circuit; the doorbell response circuit is used for carrying out pattern laser reminding or vibration reminding, and the self-generating doorbell remote control trigger circuit is used for emitting radio frequency signals from power generation for detection and identification by the doorbell response circuit;
the self-generating doorbell remote control trigger circuit comprises a self-generating pressing generator, a power supply circuit and a radio frequency coding transmitting circuit; the self-generating pressing generator is connected with the power supply circuit, and the power supply circuit is connected with the radio frequency code transmitting circuit; the self-generating pressing generator generates electric energy after being pressed and outputs the electric energy to the power supply circuit for rectification and voltage stabilization, and outputs the electric energy to the radio frequency code transmitting circuit after the voltage detection is qualified, so as to provide power supply for the radio frequency code transmitting circuit;
the doorbell response circuit comprises a storage battery, a radio frequency code receiving circuit, a delay circuit and a laser pattern transmitting circuit or a vibrating circuit;
the storage battery is respectively connected with the radio frequency code receiving circuit, the delay circuit and the laser pattern transmitting circuit or the vibrating circuit and provides power supply for the radio frequency code receiving circuit, the delay circuit and the laser pattern transmitting circuit or the vibrating circuit;
the radio frequency code receiving circuit triggers the delay circuit to control the laser pattern transmitting circuit or the vibration circuit to work after detecting the radio frequency signal transmitted by the radio frequency code transmitting circuit and stopping after delaying for a certain time;
the laser pattern emitting circuit is used for emitting a laser pattern, and the vibration circuit is used for generating vibration.
The utility model discloses a wireless remote control doorbell for a deaf person, wherein a radio frequency code receiving circuit comprises a 433MHZ super-regenerative radio frequency receiving module and a decoding chip, wherein the VCC end of the 433MHZ super-regenerative radio frequency receiving module and the VCC end of the decoding chip are both connected with the positive electrode of a storage battery, and the GND end of the decoding chip is both connected with the negative electrode of the storage battery and grounded;
the DATA end of the 433MHZ super-regenerative radio frequency receiving module is connected with the DIN end of the decoding chip, and the D3 end of the decoding chip is connected with the delay circuit; model SC2272 of the decoding chip.
The utility model relates to a wireless remote control doorbell for a deaf person, wherein a delay circuit comprises a 555 timer, an adjustable resistor and a first capacitor;
the DC end of the 555 timer is connected with the TH end and is also connected with the 1 pin of the adjustable resistor and the positive electrode of the first capacitor, the 2 pin of the adjustable resistor is connected with the 3 pin and is also connected with the positive electrode of the storage battery, and the negative electrode of the first capacitor is grounded;
the R end and the VCC end of the 555 timer are connected with the anode of the storage battery, the TR end is connected with a first resistor, and the other end of the first resistor is connected with the anode of the storage battery;
and the TR end of the 555 timer is connected with the D3 end of the decoding chip, and the Q end of the 555 timer is connected with the laser pattern transmitting circuit or the vibration circuit.
The utility model relates to a wireless remote control doorbell for a deaf person, wherein the laser pattern transmitting circuit comprises: the laser emitting diode, a pattern lens matched with the laser emitting diode and the first field effect transistor; the laser emitted by the laser emitting diode passes through the pattern lens to form pattern laser;
the positive electrode of the laser emitting diode is connected with the positive electrode of the storage battery, the negative electrode of the laser emitting diode is connected with the drain electrode of the first field effect tube, the grid electrode of the first field effect tube is connected with the source electrode in parallel, the grid electrode of the first field effect tube is connected with the Q end of the 555 timer, and the source electrode is grounded.
The utility model relates to a wireless remote control doorbell for a deaf person, wherein the vibration circuit comprises: a vibration motor and a second field effect transistor;
the first end of the vibration motor is connected with the positive electrode of the storage battery, the second end of the vibration motor is connected with the drain electrode of the second field effect tube, the grid electrode and the source electrode of the second field effect tube are connected with a third resistor in parallel, and the grid electrode of the second field effect tube is connected with the Q end of the 555 timer and the source electrode of the second field effect tube is grounded;
the vibration motor is a direct current vibration motor.
The utility model discloses a wireless remote control doorbell for a deaf person, wherein a plurality of doorbell response circuits comprise a first doorbell response circuit and a second doorbell response circuit;
the first doorbell response circuit comprises: the storage battery, the radio frequency code receiving circuit, the delay circuit and the laser pattern transmitting circuit;
the second doorbell response circuit comprises: the storage battery, the radio frequency code receiving circuit, the delay circuit and the vibration circuit.
The utility model relates to a wireless remote control doorbell for a deaf person, wherein the power supply circuit comprises: the diode, the second capacitor, the voltage stabilizing tube and the voltage detection chip;
the anode of the diode is connected with the first end of the self-generating voltage generator, the cathode of the diode is respectively connected with the anode of the second capacitor, the cathode of the voltage stabilizing diode and the VDD end of the voltage detection chip, and the anode of the second capacitor, the anode of the voltage stabilizing diode and the GND end of the voltage detection chip are connected with the second end of the self-generating voltage generator;
the radio frequency coding transmitting circuit comprises a 433MHZ super-regenerative radio frequency transmitting module matched with the 433MHZ super-regenerative radio frequency receiving module and a coding chip matched with the decoding chip, wherein an ATAD end of the 433MHZ super-regenerative radio frequency transmitting module is connected with a Dout end of the coding chip;
the OUT end of the voltage detection chip is respectively connected with the VCC end of the 433MHZ super-regenerative radio frequency transmitting module and the VCC end of the coding chip, and the GND end is respectively connected with the GND end of the 433MHZ super-regenerative radio frequency transmitting module and the GND end of the coding chip; model SC2262 of the coding chip.
The utility model has the beneficial effects that: when the power supply device is used, the power generated after the power generation pressing generator is pressed is output to the power supply circuit for rectification and voltage stabilization, and the power is output to the radio frequency code transmitting circuit after the voltage is detected to be qualified, so that the power supply is provided for the radio frequency code transmitting circuit; the radio frequency code receiving circuit triggers the delay circuit to control the laser pattern transmitting circuit or the vibration circuit to work after detecting the radio frequency signal transmitted by the radio frequency code transmitting circuit and stops after delaying for a certain time; the laser pattern transmitting circuit is used for transmitting a laser pattern, and the vibrating circuit is used for generating vibration; thereby realize reminding the deaf person to visit from the mode of sound, vibration to still carry out the code communication through radio frequency code receiving/transmitting circuit's cooperation, improved interference killing feature greatly, still set up from the electricity generation at doorbell play originating terminal and press the generator in order to provide power supply, avoided changing the loaded down with trivial details of battery or going on the line power supply outside the door, improved user experience greatly.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the present utility model will be further described with reference to the accompanying drawings and embodiments, in which the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained by those skilled in the art without inventive effort:
FIG. 1 is a schematic circuit diagram of a self-powered press generator and power circuit of a wireless remote control doorbell for a deaf person according to a preferred embodiment of the present utility model;
fig. 2 is a schematic circuit diagram of a radio frequency code transmitting circuit of a wireless remote control doorbell for a deaf person according to a preferred embodiment of the present utility model;
fig. 3 is a schematic circuit diagram of a battery and radio frequency code receiving circuit of a wireless remote control doorbell for a deaf person according to a preferred embodiment of the present utility model;
fig. 4 is a schematic circuit diagram of a delay circuit of a wireless remote control doorbell for a deaf person according to a preferred embodiment of the present utility model;
fig. 5 is a schematic circuit diagram of a laser pattern emitting circuit of a wireless remote control doorbell for a deaf person according to a preferred embodiment of the present utility model;
fig. 6 is a schematic circuit diagram of a vibration circuit of a wireless remote control doorbell for a deaf person according to a preferred embodiment of the present utility model.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the following description will be made in detail with reference to the technical solutions in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by a person skilled in the art without any inventive effort, are intended to be within the scope of the present utility model, based on the embodiments of the present utility model.
The wireless remote control doorbell for the deaf person according to the preferred embodiment of the present utility model is shown in fig. 1, and refer to fig. 2 to 6; comprises a self-generating doorbell remote control trigger circuit (figures 1 and 2) and a plurality of doorbell response circuits (figures 3 and 4 and 5 or figures 3 and 4 and 6) matched with the self-generating doorbell remote control trigger circuit; the doorbell response circuit is used for carrying out pattern laser reminding or vibration reminding, and the self-generating doorbell remote control trigger circuit is used for self-generating emission radio frequency signals for detection and identification by the doorbell response circuit;
the self-generating doorbell remote control trigger circuit comprises a self-generating push generator M1, a power supply circuit 101 and a radio frequency code transmitting circuit 201; the self-generating pressing generator M1 is connected with the power circuit 101, and the power circuit 101 is connected with the radio frequency code transmitting circuit 201; the self-generating pressing generator M1 is pressed to generate electric energy, and the electric energy is output to the power circuit 101 for rectification and voltage stabilization, and is output to the radio frequency code transmitting circuit 201 after the voltage detection is qualified, so that the power supply is provided for the radio frequency code transmitting circuit 201;
the doorbell response circuit comprises a storage battery BAT1, a radio frequency code receiving circuit 301, a delay circuit 401, a laser pattern transmitting circuit 501 or a vibration circuit 601;
the storage battery BAT1 is respectively connected with the radio frequency code receiving circuit 301 and the delay circuit 401 and the laser pattern transmitting circuit 501 or the vibration circuit 601 to supply power to the radio frequency code receiving circuit 301 and the delay circuit 401 and the laser pattern transmitting circuit 501 or the vibration circuit 601;
the radio frequency code receiving circuit 301 triggers the delay circuit 401 to control the laser pattern transmitting circuit 501 or the vibration circuit 601 to work after detecting the radio frequency signal transmitted by the radio frequency code transmitting circuit 201 and stops after delaying for a certain time;
the laser pattern emitting circuit 501 is for emitting a laser pattern, and the vibration circuit 601 is for generating vibration;
when in use, the self-generating pressing generator M1 is pressed to generate electric energy, the electric energy is output to the power circuit 101 for rectification and voltage stabilization, and the electric energy is output to the radio frequency code transmitting circuit 201 after the voltage is detected to be qualified, so that the electric energy is supplied to the radio frequency code transmitting circuit 201; the radio frequency code receiving circuit 301 triggers the delay circuit 401 to control the laser pattern transmitting circuit 501 or the vibration circuit 601 to work after detecting the radio frequency signal transmitted by the radio frequency code transmitting circuit 201 and stops after delaying for a certain time; wherein the laser pattern emitting circuit 501 is used for emitting a laser pattern, and the vibration circuit 601 is used for generating vibration; thereby realize reminding the deaf person to visit from the mode of sound, vibration to still carry out the code communication through radio frequency code receiving/transmitting circuit's cooperation, improved interference killing feature greatly, still set up from generating electricity at doorbell play originating terminal and press generator M1 in order to provide power supply, avoided changing the loaded down with trivial details of battery or walking the line power supply outside the door, improved user experience greatly.
As shown in fig. 3 and fig. 4, the radio frequency code receiving circuit 301 includes a 433MHZ super regenerative radio frequency receiving module U3 and a decoding chip U4, wherein the VCC end of the 433MHZ super regenerative radio frequency receiving module U3 and the VCC end of the decoding chip U4 are both connected to the positive electrode of the battery BAT1 and the GND end is both connected to the negative electrode of the battery BAT1 and grounded;
the DATA end of the 433MHZ super-regenerative radio frequency receiving module U3 is connected with the DIN end of the decoding chip U4, and the D3 end of the decoding chip U4 is connected with the delay circuit 401; model SC2272 of decoding chip U4; the circuit is simple, the cost is low, and the volume is small.
As shown in fig. 4 and 5 and fig. 6, the delay circuit 401 includes a 555 timer U5 and an adjustable resistor RV2 and a first capacitor C19;
the DC end of the 555 timer U5 is connected with the TH end and is also connected with the 1 pin of the adjustable resistor RV2 and the positive electrode of the first capacitor C19, the 2 pin of the adjustable resistor RV2 is connected with the 3 pin and is also connected with the positive electrode of the storage battery BAT1, and the negative electrode of the first capacitor C19 is grounded;
the R end and the VCC end of the 555 timer U5 are connected with the positive electrode of the storage battery BAT1, the TR end is connected with a first resistor R16, and the other end of the first resistor R16 is connected with the positive electrode of the storage battery BAT 1;
the TR end of the 555 timer U5 is connected with the D3 end of the decoding chip U4, and the Q end is connected with the laser pattern transmitting circuit 501 or the vibration circuit 601; the 555 timer U5 is used for delaying the time with low cost, and the delay time can be adjusted by adjusting the adjustable resistor RV 2.
As shown in fig. 4 and 5, the laser pattern emission circuit 501 includes: laser emitting diode D1D3 and pattern lens (not shown) matched with laser emitting diode D1D3 and first field effect transistor Q1; laser emitted by the laser emitting diode D1D3 passes through the pattern lens to form pattern laser;
the positive electrode of the laser emitting diode D1D3 is connected with the positive electrode of the storage battery BAT1, the negative electrode of the laser emitting diode D1D is connected with the drain electrode of the first field effect transistor Q1, the grid electrode and the source electrode of the first field effect transistor Q1 are connected with a second resistor R11 in parallel, the grid electrode of the first field effect transistor Q1 is connected with the Q end of the 555 timer U5, and the source electrode is grounded; the pattern laser is emitted to be more striking for human perception.
As shown in fig. 4 and 6, the vibration circuit 601 includes: a vibration motor M2 and a second field effect transistor Q2;
the first end of the vibration motor M2 is connected with the positive electrode of the storage battery BAT1, the second end of the vibration motor M is connected with the drain electrode of the second field effect transistor Q2, a third resistor R13 is connected in parallel with the grid electrode and the source electrode of the second field effect transistor Q2, the grid electrode of the second field effect transistor Q2 is connected with the Q end of the 555 timer U5, and the source electrode is grounded;
the vibration motor M2 is a direct current vibration motor M2; the circuit is simple, the cost is low, and the physical perception is carried out to remind the user.
As shown in fig. 3-6, the plurality of doorbell response circuits includes a first doorbell response circuit and a second doorbell response circuit; one or more receipts are realized, namely a doorbell switch (a self-generating doorbell remote control trigger circuit) is matched with a plurality of doorbell hosts (doorbell response circuits);
the first doorbell response circuit comprises: battery BAT1, radio frequency code receiving circuit 301, delay circuit 401, and laser pattern transmitting circuit 501; the first doorbell response circuit can be arranged on the indoor wall after being assembled so as to irradiate pattern laser to the indoor, so that the first doorbell response circuit is better and more striking and is convenient to perceive;
the second doorbell response circuit comprises: battery BAT1, radio frequency code receiving circuit 301, delay circuit 401, and vibration circuit 601; the second belleville response circuit may be assembled and hung around the waist of the person to vibrate to alert the person.
As shown in fig. 1 and 2, the power supply circuit 101 includes: diode D1, second capacitor C1 and stabilizator D2 and voltage detection chip U1;
the positive electrode of the diode D1 is connected with the first end of the self-generating press generator M1, the negative electrode of the diode D1 is respectively connected with the positive electrode of the second capacitor C1, the negative electrode of the voltage stabilizing diode D1 and the VDD end of the voltage detection chip U1, and the negative electrode of the second capacitor C1, the positive electrode of the voltage stabilizing diode D1 and the GND end of the voltage detection chip U1 are connected with the second end of the self-generating press generator M1; to rectify and stabilize the voltage; the second capacitor C1 is used for storing energy;
the radio frequency coding transmitting circuit 201 comprises a 433MHZ super-regenerative radio frequency transmitting module U2 matched with the 433MHZ super-regenerative radio frequency receiving module U3, and a coding chip U1 matched with a decoding chip U4, wherein an ATAD end of the 433MHZ super-regenerative radio frequency transmitting module U2 is connected with a Dout end of the coding chip U1;
the OUT end of the voltage detection chip U1 is respectively connected with the VCC end of the 433MHZ super-regenerative radio frequency transmission module U2 and the VCC end of the coding chip U1, and the GND end is respectively connected with the GND end of the 433MHZ super-regenerative radio frequency transmission module U2 and the GND end of the coding chip U1; model SC2262 of the encoding chip U1; the voltage detection chip U1 is used for filtering low voltage, so that unstable operation caused by too low voltage provided to the 433MHZ super-regenerative radio frequency transmitting module U2 is avoided.
It will be understood that modifications and variations will be apparent to those skilled in the art from the foregoing description, and it is intended that all such modifications and variations be included within the scope of the following claims.
Claims (7)
1. The deaf person wireless remote control doorbell comprises a self-generating doorbell remote control trigger circuit and a plurality of doorbell response circuits matched with the self-generating doorbell remote control trigger circuit; the self-generating doorbell is characterized in that the doorbell response circuit is used for carrying out pattern laser reminding or vibration reminding, and the self-generating doorbell remote control trigger circuit is used for emitting radio frequency signals from power generation for detection and identification by the doorbell response circuit;
the self-generating doorbell remote control trigger circuit comprises a self-generating pressing generator, a power supply circuit and a radio frequency coding transmitting circuit; the self-generating pressing generator is connected with the power supply circuit, and the power supply circuit is connected with the radio frequency code transmitting circuit; the self-generating pressing generator generates electric energy after being pressed and outputs the electric energy to the power supply circuit for rectification and voltage stabilization, and outputs the electric energy to the radio frequency code transmitting circuit after the voltage detection is qualified, so as to provide power supply for the radio frequency code transmitting circuit;
the doorbell response circuit comprises a storage battery, a radio frequency code receiving circuit, a delay circuit and a laser pattern transmitting circuit or a vibrating circuit;
the storage battery is respectively connected with the radio frequency code receiving circuit, the delay circuit and the laser pattern transmitting circuit or the vibrating circuit and provides power supply for the radio frequency code receiving circuit, the delay circuit and the laser pattern transmitting circuit or the vibrating circuit;
the radio frequency code receiving circuit triggers the delay circuit to control the laser pattern transmitting circuit or the vibration circuit to work after detecting the radio frequency signal transmitted by the radio frequency code transmitting circuit and stopping after delaying for a certain time;
the laser pattern emitting circuit is used for emitting a laser pattern, and the vibration circuit is used for generating vibration.
2. The deaf person wireless remote control doorbell according to claim 1, wherein the radio frequency code receiving circuit comprises a 433MHZ super regenerative radio frequency receiving module and a decoding chip, wherein the VCC end of the 433MHZ super regenerative radio frequency receiving module and the VCC end of the decoding chip are both connected with the positive electrode of the storage battery and the GND end is both connected with the negative electrode of the storage battery and grounded;
the DATA end of the 433MHZ super-regenerative radio frequency receiving module is connected with the DIN end of the decoding chip, and the D3 end of the decoding chip is connected with the delay circuit; model SC2272 of the decoding chip.
3. The wireless remote control doorbell of claim 2, wherein the delay circuit comprises a 555 timer and an adjustable resistor and a first capacitor;
the DC end of the 555 timer is connected with the TH end and is also connected with the 1 pin of the adjustable resistor and the positive electrode of the first capacitor, the 2 pin of the adjustable resistor is connected with the 3 pin and is also connected with the positive electrode of the storage battery, and the negative electrode of the first capacitor is grounded;
the R end and the VCC end of the 555 timer are connected with the anode of the storage battery, the TR end is connected with a first resistor, and the other end of the first resistor is connected with the anode of the storage battery;
and the TR end of the 555 timer is connected with the D3 end of the decoding chip, and the Q end of the 555 timer is connected with the laser pattern transmitting circuit or the vibration circuit.
4. A wireless remote control doorbell of claim 3, wherein the laser pattern emitting circuit comprises: the laser emitting diode, a pattern lens matched with the laser emitting diode and the first field effect transistor; the laser emitted by the laser emitting diode passes through the pattern lens to form pattern laser;
the positive electrode of the laser emitting diode is connected with the positive electrode of the storage battery, the negative electrode of the laser emitting diode is connected with the drain electrode of the first field effect tube, the grid electrode of the first field effect tube is connected with the source electrode in parallel, the grid electrode of the first field effect tube is connected with the Q end of the 555 timer, and the source electrode is grounded.
5. The wireless remote control doorbell of claim 4, wherein the vibration circuit comprises: a vibration motor and a second field effect transistor;
the first end of the vibration motor is connected with the positive electrode of the storage battery, the second end of the vibration motor is connected with the drain electrode of the second field effect tube, the grid electrode and the source electrode of the second field effect tube are connected with a third resistor in parallel, and the grid electrode of the second field effect tube is connected with the Q end of the 555 timer and the source electrode of the second field effect tube is grounded;
the vibration motor is a direct current vibration motor.
6. The wireless remote control doorbell of claim 5, wherein the plurality of doorbell response circuits comprises a first said doorbell response circuit and a second said doorbell response circuit;
the first doorbell response circuit comprises: the storage battery, the radio frequency code receiving circuit, the delay circuit and the laser pattern transmitting circuit;
the second doorbell response circuit comprises: the storage battery, the radio frequency code receiving circuit, the delay circuit and the vibration circuit.
7. The wireless remote control doorbell of claim 2, wherein the power supply circuit comprises: the voltage detection chip comprises a diode, a second capacitor, a voltage stabilizing diode and a voltage detection chip;
the anode of the diode is connected with the first end of the self-generating voltage generator, the cathode of the diode is respectively connected with the anode of the second capacitor, the cathode of the voltage stabilizing diode and the VDD end of the voltage detection chip, and the anode of the second capacitor, the anode of the voltage stabilizing diode and the GND end of the voltage detection chip are connected with the second end of the self-generating voltage generator;
the radio frequency coding transmitting circuit comprises a 433MHZ super-regenerative radio frequency transmitting module matched with the 433MHZ super-regenerative radio frequency receiving module and a coding chip matched with the decoding chip, wherein an ATAD end of the 433MHZ super-regenerative radio frequency transmitting module is connected with a Dout end of the coding chip;
the OUT end of the voltage detection chip is respectively connected with the VCC end of the 433MHZ super-regenerative radio frequency transmitting module and the VCC end of the coding chip, and the GND end is respectively connected with the GND end of the 433MHZ super-regenerative radio frequency transmitting module and the GND end of the coding chip; model SC2262 of the coding chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222885549.6U CN219329050U (en) | 2022-10-31 | 2022-10-31 | Wireless remote control doorbell for deaf person |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222885549.6U CN219329050U (en) | 2022-10-31 | 2022-10-31 | Wireless remote control doorbell for deaf person |
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| CN219329050U true CN219329050U (en) | 2023-07-11 |
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| CN202222885549.6U Active CN219329050U (en) | 2022-10-31 | 2022-10-31 | Wireless remote control doorbell for deaf person |
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