Doorbell convenient for deaf-mute blind to use

Abstract

The doorbell comprises a transmitting module, a receiving module, a function selection module and a master control module, the transmitting module is used for transmitting a radio frequency signal, the receiving module is used for outputting a wireless starting signal according to the radio frequency signal, the function selection module is used for selecting a deaf-mute function or a blind function, and the master control module is used for controlling the deaf-mute function or the blind function. And the main control module is used for executing lamp-on and horn-off operation according to the deaf-mute function and executing horn-off operation according to the blind function. According to the doorbell, different function modes are switched through the function selection module to meet the use requirements of the deaf-mute blind; for the deaf-mute, the main control module carries out the operation that the lamp is turned on and the loudspeaker does not sound, so that the bright light reminds the deaf-mute that someone comes to visit; and for the blind person, the main control module prompts the blind person to visit through loud sound by executing the operation that the loudspeaker is not turned on, so that not only is the use flexibility of the doorbell improved, but also the independent living ability and living quality of the blind person can be improved.

Description

[Technical Field]

[0002] This utility model relates to the field of doorbell technology, and in particular to a doorbell that is convenient for deaf, mute and blind people to use. [Background Technology]

[0004] In modern society, doorbells are a common visitor notification device in homes and public places. They are usually installed with the switch on the outside of the door and the doorbell on the inside of the door or in other parts of the room, so as to notify people inside the house that someone has come to visit through sound.

[0005] However, existing doorbells may be ineffective for deaf and mute users due to the lack of audible cues, making it difficult for them to detect visitors. Conversely, blind users may miss the doorbell signal due to the lack of visual cues, making it difficult for them to identify visitors and thus inconvenient for both groups. While some doorbells specifically designed for deaf and blind users exist, most lack flexibility and cannot be easily switched according to user needs. [Utility Model Content]

[0007] To address the current technical problems of doorbells being inconvenient and lacking flexibility for deaf, mute, and blind users, this utility model proposes a doorbell that is convenient for deaf, mute, and blind users to use.

[0008] This utility model is achieved by the following technical solution:

[0009] A doorbell designed for use by deaf, mute, and blind people includes:

[0010] The transmitting module is used to transmit radio frequency signals;

[0011] A receiving module, wherein the signal input terminal of the receiving module is connected to the signal output terminal of the transmitting module, and the signal output terminal of the receiving module is used to output a wireless start signal according to the radio frequency signal;

[0012] The function selection module has a signal input terminal for selecting a function for deaf-mute or blind people, and a signal output terminal for outputting a first function signal based on the function for deaf-mute and a second function signal based on the function for blind people.

[0013] The main control module has its start signal terminal connected to the signal output terminal of the receiving module, and its signal input terminal connected to the signal output terminal of the function selection module. The signal output terminal of the main control module is used, on the one hand, to perform the operation of turning on the light and turning off the horn according to the first function signal, and on the other hand, to perform the operation of turning on the horn and turning off the light according to the second function signal.

[0014] As described above, a doorbell designed for use by deaf, mute, and blind individuals includes a transmitting module comprising:

[0015] A start / stop switch, which is used to output a start / stop signal to control the start and stop of the transmitting module;

[0016] A transmitting unit, wherein the signal input terminal of the transmitting unit is connected to the start / stop switch, and the signal output terminal of the transmitting unit is used to output a pulse signal;

[0017] A comparison amplification unit is provided, wherein the signal input terminal of the comparison amplification unit is connected to the signal output terminal of the transmitting unit, and the signal output terminal of the comparison amplification unit is used to amplify the pulse signal into the radio frequency signal.

[0018] An antenna, electrically connected to the comparison amplification unit, is used to transmit the radio frequency signal.

[0019] As described above, a doorbell designed for use by deaf, mute, and blind individuals includes a transmitting unit comprising a first switching transistor, a transmitting chip, a battery BT1, resistors R1, R5, R6, and R7, and a first light-emitting diode (LED). A start / stop switch is connected to one end of resistor R6, and the other end of resistor R6 is connected to the control terminal of the first switching transistor. The negative terminal of battery BT1 is grounded, and the positive terminal of battery BT1 is connected to one end of resistor R7. The other end of resistor R7 is connected to the first conducting terminal of the first switching transistor. The second conducting terminal of the first switching transistor is connected to one end of resistor R5, and the other end of resistor R5 is connected to the signal input terminal of the transmitting chip. The second conducting terminal of the first switching transistor is also connected to one end of resistor R1, and the other end of resistor R1 is connected to the positive terminal of the first LED. The negative terminal of the first LED is grounded.

[0020] As described above, a doorbell designed for the convenience of deaf, mute, and blind users includes a comparison and amplification unit comprising a second switching transistor, a high-frequency transmitting transistor, a crystal filter Y1, a resistor R3, a capacitor C1, a capacitor C2, and an inductor L1. The signal output terminal of the transmitting chip is connected to one end of the resistor R3, and the other end of the resistor R3 is connected to the control terminal of the second switching transistor. The first conducting terminal of the second switching transistor is grounded, and the second conducting terminal of the second switching transistor is connected to one end of the capacitor C1. The other end of the capacitor C1 is connected to one end of the crystal filter Y1, and the other end of the crystal filter Y1 is connected to the control terminal of the high-frequency transmitting transistor. The second conducting terminal of the second switching transistor is also connected to the first conducting terminal of the high-frequency transmitting transistor. The second conducting terminal of the high-frequency transmitting transistor is connected to one end of the capacitor C1, and the other end of the capacitor C1 is connected to one end of the inductor L1. The other end of the inductor L1 is connected to the antenna.

[0021] As described above, a doorbell designed for use by deaf, mute, and blind individuals includes a receiving module comprising:

[0022] The receiving unit has its signal input terminal connected to the signal output terminal of the transmitting module and its signal output terminal connected to the start signal terminal of the main control module. The receiving unit is used to start the main control module after receiving the radio frequency signal.

[0023] A stabilization unit is electrically connected to the receiving unit, and the stabilization unit is used to ensure that the receiving unit can stably receive the radio frequency signal.

[0024] As described above, a doorbell designed for use by deaf, mute, and blind individuals includes a receiving unit comprising a receiving chip, a capacitor C7, and an inductor L4. The antenna is connected to one end of the capacitor C7, and the other end of the capacitor C7 is connected to the signal input terminal of the receiving chip. The inductor L4 is connected between the other end of the capacitor C7 and ground. The signal output terminal of the receiving chip is connected to the signal input terminal of the main control module, and the data communication terminal of the receiving chip is connected to the data communication terminal of the main control module.

[0025] As described above, a doorbell designed for use by deaf, mute, and blind individuals includes a stabilization unit comprising a filter capacitor C9 and a crystal oscillator Y2. The gain control terminal of the receiving chip is connected to the filter capacitor C9, and the crystal clock input terminal of the receiving chip is connected to the crystal oscillator Y2.

[0026] As described above, a doorbell designed for use by deaf, mute, and blind individuals includes a function selection module comprising:

[0027] A function switch is connected to the signal input terminal of the main control module, and the function switch is used to select the function for deaf-mute or blind people.

[0028] As described above, a doorbell designed for use by deaf, mute, and blind individuals includes a main control module comprising a main control chip, a second light-emitting diode (LED), a battery BT2, a speaker, and a resistor R10. The positive terminal of the battery BT2 is connected to the power supply terminal of the main control chip. The function switch is connected to the signal input terminal of the main control chip. The first function signal output terminal of the main control chip is connected to one end of the resistor R10, and the other end of the resistor R10 is connected to the positive terminal of the second LED. The negative terminal of the second LED is grounded. The second function signal output terminal of the main control chip is connected to the speaker.

[0029] As described above, in a doorbell designed for the convenience of deaf, mute, and blind users, the first functional signal output terminal of the main control chip is also connected to a mode switching switch. The mode switching switch is used to switch the ringtone when the speaker sounds and is also used to input the digital signal of the transmitting module.

[0030] Compared with the prior art, the doorbell proposed in this utility model, which is convenient for deaf, mute and blind people to use, has the following beneficial effects:

[0031] 1. The doorbell proposed in this utility model not only meets the needs of ordinary use, but also allows for switching between different function modes through a function selection module to adapt to the needs of deaf, mute, and blind users. For deaf and mute users, the main control module can activate the light and deactivate the horn to alert them to the arrival of visitors. For blind users, the main control module can activate the horn and deactivate the light to alert them to the arrival of visitors with a loud sound. This not only improves the flexibility of the doorbell but also helps to improve their independent living ability and quality of life.

[0032] 2. The function selection module proposed in this utility model includes a function switch SW2. Users can switch functions simply by pressing the function switch SW2, which is simple and intuitive to operate and very user-friendly for people with disabilities. In addition, the function switch SW2 has a memory function, which will automatically restore the previously selected function mode even after the device is powered off and restarted, avoiding the problem of reconfiguration before each use and greatly facilitating users.

[0033] 3. The receiving module proposed in this utility model includes a receiving unit and a stabilizing unit. The receiving unit is responsible for receiving the radio frequency signal from the transmitting module and converting it into a processable electrical signal. This ensures that the doorbell trigger signal can be accurately received even in a complex electromagnetic environment, thereby starting the main control module. The stabilizing unit eliminates interference and noise through filtering, voltage regulation and other means to ensure that the received signal is clean and stable, reducing the possibility of false triggering. [Attached Image Description]

[0035] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0036] Figure 1 This is a circuit structure block diagram of the present invention;

[0037] Figure 2 This is a partial circuit diagram of the transmitting module of this utility model;

[0038] Figure 3 This is a circuit diagram of the main circuit part of this utility model.

Detailed Implementation Methods

[0040] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0041] Specific embodiments, combined with Figures 1 to 3 As shown, further illustrating the technical solution of this utility model, a doorbell convenient for deaf, mute, and blind users includes a transmitting module 100, a receiving module 200, a function selection module 300, and a main control module 400. The transmitting module 100 is used to transmit radio frequency signals. The signal input terminal of the receiving module 200 is connected to the signal output terminal of the transmitting module 100. The signal output terminal of the receiving module 200 is used to output a wireless start signal according to the radio frequency signal. The signal input terminal of the function selection module 300 is used to select a deaf / mute function or a blind function. The signal output terminal of the function selection module 300 is used to output a first function signal according to the deaf / mute function and a second function signal according to the blind function. The start signal terminal of the main control module 400 is connected to the signal output terminal of the receiving module 200. The signal input terminal of the main control module 400 is connected to the signal output terminal of the function selection module 300. The signal output terminal of the main control module 400 is used to perform a light-on, horn-off operation according to the first function signal and a horn-on, light-off operation according to the second function signal. While meeting general usage needs, this doorbell can also switch between different function modes via the function selection module 300 to adapt to the usage needs of deaf, mute, and blind users. For deaf and mute users, the main control module 400 can activate the light and deactivate the horn to alert them to someone's arrival. For blind users, the main control module 400 can activate the horn and deactivate the light to alert them to someone's arrival with a loud sound. This not only improves the flexibility of the doorbell but also helps to enhance their independent living ability and quality of life.

[0042] Furthermore, as a preferred embodiment of this solution and not a limitation thereof, the signal output terminals of the main control module 400 include a first functional signal output terminal and a second functional signal output terminal.

[0043] Furthermore, as a preferred embodiment of this solution and not a limitation thereof, the transmitting module 100 includes a start / stop switch K1, a transmitting unit 101, a comparison and amplification unit 102, and an antenna. The start / stop switch K1 is used to output a start / stop signal to control the start and stop of the transmitting module 100. The signal input terminal of the transmitting unit 101 is connected to the start / stop switch K1, and the signal output terminal of the transmitting unit 101 is used to output a pulse signal. The signal input terminal of the comparison and amplification unit 102 is connected to the signal output terminal of the transmitting unit 101, and the signal output terminal of the comparison and amplification unit 102 is used to amplify the pulse signal into the radio frequency signal. The antenna is electrically connected to the comparison and amplification unit 102, and the antenna is used to transmit the radio frequency signal.

[0044] Specifically, when the start / stop switch K1 is pressed, the start / stop switch K1 outputs a start signal. After receiving the start signal, the signal output terminal of the transmitting unit 101 outputs a pulse signal. After receiving the pulse signal, the comparison and amplification unit 102 amplifies the pulse signal, that is, amplifies the pulse signal into a high-frequency radio frequency signal so that the receiving module 200 can receive it. At this time, the transmitting module 100 is in working state.

[0045] When the start / stop switch K1 is pressed again, the start / stop switch K1 outputs a stop signal. After receiving the stop signal, the transmitting unit 101 stops working, and at this time the transmitting module 100 is in a stopped working state.

[0046] In this embodiment, the start / stop switch K1 is equivalent to a doorbell button. When the start / stop switch K1 is pressed, the doorbell start signal (i.e., pulse signal) is converted into a high-frequency radio frequency signal by the transmitting module and then transmitted through the antenna. This ensures that the doorbell start signal can be transmitted over long distances, allowing the doorbell to be moved and placed flexibly. In addition, radio frequency signals have stronger anti-interference capabilities than ordinary pulse signals, and can maintain stable transmission in complex electromagnetic environments, reducing the possibility of signal distortion or loss.

[0047] Furthermore, as a preferred embodiment of this solution and not a limitation thereof, the transmitting unit 101 includes a first switching transistor Q3, a transmitting chip U1, a battery BT1, resistors R1, R5, R6, and R7, and a first light-emitting diode (LED). The start / stop switch K1 is connected to one end of the resistor R6, and the other end of the resistor R6 is connected to the control terminal (i.e., base) of the first switching transistor Q3. The negative terminal of the battery BT1 is grounded, and the positive terminal of the battery BT1 is connected to one end of the resistor R7. The other end of the resistor R7 is connected to the first conducting terminal (i.e., emitter) of the first switching transistor Q3. The second conducting terminal (i.e., collector) of the first switching transistor Q3 is connected to one end of the resistor R5, and the other end of the resistor R5 is connected to the signal input terminal (i.e., pin 5 in this embodiment) of the transmitting chip U1. The second conducting terminal of the first switching transistor Q3 is also connected to one end of the resistor R1, and the other end of the resistor R1 is connected to the positive terminal of the first LED. The negative terminal of the first LED is grounded.

[0048] The battery BT1 is a 12V, 23A battery.

[0049] In this embodiment, the first switching transistor Q3 is a control switch that can achieve precise control of the transmitting chip U1, ensuring timely start and stop of the signal and avoiding false triggering or delayed response; the first light-emitting diode LED can intuitively display the working status of the transmitting module, allowing users to clearly understand whether the device is working properly, thus enhancing the user experience.

[0050] Furthermore, as a preferred embodiment of this solution and not a limitation, the comparison amplification unit 102 includes a second switch transistor Q2, a high-frequency transmitting transistor Q1, a crystal filter Y1, a resistor R3, a capacitor C1, a capacitor C2, and an inductor L1. The signal output terminal of the transmitting chip U1 (i.e., pin 4 in this embodiment) is connected to one end of the resistor R3, and the other end of the resistor R3 is connected to the control terminal (i.e., base) of the second switch transistor Q2. The first conducting terminal (i.e., emitter) of the second switch transistor Q2 is grounded, and the second conducting terminal (i.e., collector) of the second switch transistor Q2 is connected to the control terminal (i.e., base) of the second switch transistor Q2. One end of capacitor C1 is connected to the crystal filter Y1, and the other end of the crystal filter Y1 is connected to the control terminal (i.e., base) of the high-frequency transmitting tube Q1. The second conducting terminal of the second switching tube Q2 is also connected to the first conducting terminal (i.e., emitter) of the high-frequency transmitting tube. The second conducting terminal (i.e., collector) of the high-frequency transmitting tube Q1 is connected to one end of capacitor C1, and the other end of capacitor C1 is connected to one end of inductor L1. The other end of inductor L1 is connected to the antenna (i.e., ANTENNA in this embodiment).

[0051] In this embodiment, the pulse signal output by the transmitting chip U1 can be effectively converted and amplified into a radio frequency signal suitable for long-distance transmission through the cascaded amplification of the second switching transistor Q2 and the high-frequency transmitting transistor Q1; at the same time, the crystal filter Y1 ensures the frequency stability of the signal, making the final output radio frequency signal purer and reducing interference.

[0052] In addition, the LC resonant circuit composed of inductor L1 and capacitor C1 plays a role in impedance matching, optimizes the energy transfer efficiency between the antenna and the amplifier circuit, and further improves the signal strength and transmission distance.

[0053] Furthermore, as a preferred embodiment of this solution and not a limitation, the receiving module 200 includes a receiving unit and a stabilizing unit. The signal input terminal of the receiving unit is connected to the signal output terminal of the transmitting module 100, and the signal output terminal of the receiving unit is connected to the start signal terminal of the main control module 400. The receiving unit is used to start the main control module 400 to work after receiving the radio frequency signal. The stabilizing unit is electrically connected to the receiving unit and is used to ensure that the receiving unit can stably receive the radio frequency signal.

[0054] In this embodiment, the receiving unit is responsible for receiving the radio frequency signal from the transmitting module and converting it into a processable electrical signal. This ensures that the doorbell trigger signal can be received accurately even in a complex electromagnetic environment, thereby activating the main control module. The stabilizing unit eliminates interference and noise through filtering, voltage regulation, and other means to ensure that the received signal is clean and stable, reducing the possibility of false triggering.

[0055] Furthermore, as a preferred embodiment of this solution and not a limitation, the receiving unit includes a receiving chip U2, a capacitor C7, and an inductor L4. The antenna is connected to one end of the capacitor C7, and the other end of the capacitor C7 is connected to the signal input terminal (i.e., pin 2 in this embodiment) of the receiving chip U2. The inductor L4 is connected between the other end of the capacitor C7 and ground. The signal output terminal (i.e., pin 6 in this embodiment) of the receiving chip U2 is connected to the signal input terminal of the main control module 400, and the data communication terminal (i.e., pin 5 in this embodiment) of the receiving chip U2 is connected to the data communication terminal of the main control module 400.

[0056] In this embodiment, capacitor C7 and inductor L4 together form an LC resonant circuit, which can effectively match the impedance between the antenna and the receiving chip, ensuring that the radio frequency signal is captured by the receiving chip to the maximum extent during transmission, and reducing signal reflection and loss.

[0057] Furthermore, as a preferred embodiment of this solution and not a limitation thereof, the stabilizing unit includes a filter capacitor C9 and a crystal oscillator Y2. The gain control terminal of the receiving chip U2 (i.e., pin 4 in this embodiment) is connected to the filter capacitor C9, and the crystal clock input terminal of the receiving chip U2 (i.e., pin 8 in this embodiment) is connected to the crystal oscillator Y2.

[0058] In this embodiment, the filter capacitor C9 is connected to the gain control terminal of the receiver chip U2, which can effectively filter out power supply noise and high-frequency interference, ensuring the stability of the gain control signal of the receiver chip during operation. The crystal oscillator Y2 is connected to the crystal clock input terminal of the receiver chip, providing a high-precision clock signal for the receiver chip. The crystal oscillator has high stability and low drift characteristics, which can ensure the clock accuracy of the receiver chip when processing signals.

[0059] Furthermore, as a preferred embodiment of this solution and not a limitation, the function selection module 300 includes a function switching switch SW2, which is connected to the signal input terminal of the main control module. The function switching switch SW2 is used to select the function for deaf-mute or blind users.

[0060] Specifically, the function switch SW2 is initially set to select the deaf-mute function by default. When the function switch SW2 is pressed, it switches to select the blind function. When the function switch SW2 is pressed again, it switches back to select the deaf-mute function, and so on. That is, each time the function switch SW2 is pressed, it switches between the deaf-mute function and the blind function.

[0061] In addition, the function switch SW2 has a memory function. That is, if the function switch SW2 is currently in the deaf-mute function, it will remain in the deaf-mute function unless the function switch SW2 is pressed to switch functions.

[0062] In this embodiment, the user can switch functions simply by pressing the function switch SW2, which is simple and intuitive to operate and very user-friendly for people with disabilities. In addition, the function switch SW2 has a memory function, so even if the device is powered off and restarted, it will automatically restore the previously selected function mode, avoiding the problem of reconfiguration before each use and greatly facilitating the user.

[0063] Users can easily switch between the deaf and blind functions by simply pressing the SW2 function switch. The operation is simple and intuitive, without the need for complicated setup processes, thus lowering the barrier to entry for users.

[0064] Furthermore, as a preferred embodiment of this solution and not a limitation, the main control module 400 includes a main control chip U3, a second light-emitting diode (LED), a battery BT2, a speaker, and a resistor R10. The positive terminal of the battery BT2 is connected to the power supply terminal of the main control chip U3 (i.e., pin 3 in this embodiment). The function switching switch SW2 is connected to the signal input terminal of the main control chip U3 (i.e., pin 8 in this embodiment). The first function signal output terminal of the main control chip U3 (i.e., pin 7 in this embodiment) is connected to one end of the resistor R10. The other end of the resistor R10 is connected to the positive terminal of the second light-emitting diode (LED). The negative terminal of the second light-emitting diode (LED) is grounded. The second function signal output terminal of the main control chip U3 (i.e., pins 2 and 4 in this embodiment) is connected to the speaker.

[0065] The battery BT2 consists of three 1.5V cells connected in series to form a 4.5V battery.

[0066] Specifically, if the function switch SW2 is currently selected as the deaf-mute function, after the signal input terminal of the main control chip U3 receives the first function signal, the first function signal output terminal of the main control chip U3 outputs a high level, causing the second light-emitting diode (LED) to conduct and light up. Meanwhile, the second function signal output terminal of the main control chip U3 remains at a low level, not triggering the horn, thus achieving the operation of the light being on but the horn not sounding. In this way, when someone presses the doorbell, the deaf-mute user can determine that someone has pressed the doorbell by the light being on.

[0067] When the function switch SW2 is pressed to switch to the blind function, after the signal input terminal of the main control chip U3 receives the second function signal, the second function signal output terminal of the main control chip U3 outputs a high level, causing the horn to conduct and sound. Meanwhile, the first function signal output terminal of the main control chip U3 remains at a low level, not triggering the second light-emitting diode (LED) to conduct and light up, thereby realizing the operation of sounding the horn but not lighting up the light. Thus, when someone presses the doorbell, the blind user can determine that someone has pressed the doorbell by hearing the horn.

[0068] Furthermore, as a preferred embodiment of this solution and not a limitation, the first functional signal output terminal of the main control chip U3 is also connected to a mode switching switch SW1. The mode switching switch SW1 is used to switch the ringtone when the speaker sounds and to record the digital signal of the transmitting module 100.

[0069] Specifically, the main control chip U3 has multiple ringtones, which users can switch between using the mode switch SW1 to select their preferred ringtone. It's important to note that the main control chip U3 has an automatic protection function. The mode switch SW1 can only switch ringtones when the main control chip U3 is in a "sound horn, no light" operation. When the main control chip U3 is in a "light on, horn off" operation, pressing the mode switch SW1 will prevent ringtone switching due to the main control chip U3's protection mechanism. In this embodiment, the main control chip U3 has 36 ringtones for users to choose from. In practice, the number of ringtones in the main control chip U3 can be more or less than 36, and the specific number can be adjusted according to user needs.

[0070] Additionally, to input the digital signal of the transmitting module 100 using the mode switching switch SW1, the mode switching switch SW1 needs to be pressed and held for approximately 3 seconds. The main control chip U3 then enters the recording state, which means the main control chip U3 is currently inputting the transmitter's characteristic signal. Specifically, it is currently storing the high-frequency digital signal emitted by the transmitting module 100 as a memory signal. The high-frequency digital signal is a 433.92MHz digital signal. A single beep from the speaker indicates successful recording. In this embodiment, the main control chip U3 can support inputting the characteristic signals of 20 transmitters at once. When more transmitters than the maximum limit are input, the characteristic signal of the first input transmitter is overwritten. It is understood that the high-frequency digital signals emitted by different transmitters differ. Therefore, the high-frequency digital signals emitted by different transmitters can be used as their characteristic signals for differentiation. This allows the main control chip U3 to control the corresponding doorbell to perform the corresponding function operation based on the recorded information when the doorbell is pressed.

[0071] Furthermore, as a preferred embodiment of this solution and not a limitation, the function switch SW2 can also integrate a volume adjustment function. Specifically, when the function switch SW2 is for the blind, the volume of the ringtone can be set by setting different long press times. In addition, the volume adjustment function can also be achieved by connecting other external devices. Here, no specific operation method or implementation method is specifically limited.

[0072] Those skilled in the art should understand that the above description is one embodiment provided in conjunction with specific content, and does not imply that the specific implementation of this utility model is limited to these descriptions. Furthermore, due to differences in industry naming conventions, it is not limited to the above names or English names. Any methods or structures similar to or identical to those of this utility model, or any technical deductions or substitutions made based on the concept of this utility model, should be considered within the scope of protection of this utility model.

Claims

1. A doorbell that is convenient for deaf, mute, and blind people to use, characterized in that, include: The transmitting module is used to transmit radio frequency signals; A receiving module, wherein the signal input terminal of the receiving module is connected to the signal output terminal of the transmitting module, and the signal output terminal of the receiving module is used to output a wireless start signal according to the radio frequency signal; The function selection module has a signal input terminal for selecting a function for deaf-mute or blind people, and a signal output terminal for outputting a first function signal based on the function for deaf-mute and a second function signal based on the function for blind people. The main control module has its start signal terminal connected to the signal output terminal of the receiving module, and its signal input terminal connected to the signal output terminal of the function selection module. The signal output terminal of the main control module is used, on the one hand, to perform the operation of turning on the light and turning off the horn according to the first function signal, and on the other hand, to perform the operation of turning on the horn and turning off the light according to the second function signal.

2. The doorbell for convenient use by deaf, mute, and blind people according to claim 1, characterized in that, The transmitting module includes: A start / stop switch, which is used to output a start / stop signal to control the start and stop of the transmitting module; A transmitting unit, wherein the signal input terminal of the transmitting unit is connected to the start / stop switch, and the signal output terminal of the transmitting unit is used to output a pulse signal; A comparison amplification unit is provided, wherein the signal input terminal of the comparison amplification unit is connected to the signal output terminal of the transmitting unit, and the signal output terminal of the comparison amplification unit is used to amplify the pulse signal into the radio frequency signal. An antenna, electrically connected to the comparison amplification unit, is used to transmit the radio frequency signal.

3. A doorbell for convenient use by deaf, mute, and blind people according to claim 2, characterized in that, The transmitting unit includes a first switching transistor, a transmitting chip, a battery BT1, resistors R1, R5, R6, and R7, and a first light-emitting diode (LED). The start / stop switch is connected to one end of resistor R6, and the other end of resistor R6 is connected to the control terminal of the first switching transistor. The negative terminal of battery BT1 is grounded, and the positive terminal of battery BT1 is connected to one end of resistor R7. The other end of resistor R7 is connected to the first conducting terminal of the first switching transistor. The second conducting terminal of the first switching transistor is connected to one end of resistor R5, and the other end of resistor R5 is connected to the signal input terminal of the transmitting chip. The second conducting terminal of the first switching transistor is also connected to one end of resistor R1, and the other end of resistor R1 is connected to the positive terminal of the first LED. The negative terminal of the first LED is grounded.

4. A doorbell for convenient use by deaf, mute, and blind people according to claim 3, characterized in that, The comparison amplification unit includes a second switching transistor, a high-frequency transmitting transistor, a crystal filter Y1, a resistor R3, a capacitor C1, a capacitor C2, and an inductor L1. The signal output terminal of the transmitting chip is connected to one end of the resistor R3, and the other end of the resistor R3 is connected to the control terminal of the second switching transistor. The first conducting terminal of the second switching transistor is grounded, and the second conducting terminal of the second switching transistor is connected to one end of the capacitor C1. The other end of the capacitor C1 is connected to one end of the crystal filter Y1, and the other end of the crystal filter Y1 is connected to the control terminal of the high-frequency transmitting transistor. The second conducting terminal of the second switching transistor is also connected to the first conducting terminal of the high-frequency transmitting transistor. The second conducting terminal of the high-frequency transmitting transistor is connected to one end of the capacitor C1, and the other end of the capacitor C1 is connected to one end of the inductor L1. The other end of the inductor L1 is connected to the antenna.

5. A doorbell for convenient use by deaf, mute, and blind people according to claim 2, characterized in that, The receiving module includes: The receiving unit has its signal input terminal connected to the signal output terminal of the transmitting module and its signal output terminal connected to the start signal terminal of the main control module. The receiving unit is used to start the main control module after receiving the radio frequency signal. A stabilization unit is electrically connected to the receiving unit, and the stabilization unit is used to ensure that the receiving unit can stably receive the radio frequency signal.

6. A doorbell for convenient use by deaf, mute, and blind people according to claim 5, characterized in that, The receiving unit includes a receiving chip, a capacitor C7, and an inductor L4. The antenna is connected to one end of the capacitor C7, and the other end of the capacitor C7 is connected to the signal input terminal of the receiving chip. The inductor L4 is connected between the other end of the capacitor C7 and ground. The signal output terminal of the receiving chip is connected to the signal input terminal of the main control module, and the data communication terminal of the receiving chip is connected to the data communication terminal of the main control module.

7. A doorbell for convenient use by deaf, mute, and blind people according to claim 6, characterized in that, The stabilization unit includes a filter capacitor C9 and a crystal oscillator Y2. The gain control terminal of the receiving chip is connected to the filter capacitor C9, and the crystal clock input terminal of the receiving chip is connected to the crystal oscillator Y2.

8. A doorbell for convenient use by deaf, mute, and blind people according to claim 1, characterized in that, The function selection module includes: A function switch is connected to the signal input terminal of the main control module, and the function switch is used to select the function for deaf-mute or blind people.

9. A doorbell for convenient use by deaf, mute, and blind people according to claim 8, characterized in that, The main control module includes a main control chip, a second light-emitting diode (LED), a battery BT2, a speaker, and a resistor R10. The positive terminal of the battery BT2 is connected to the power supply terminal of the main control chip. The function switch is connected to the signal input terminal of the main control chip. The first function signal output terminal of the main control chip is connected to one end of the resistor R10. The other end of the resistor R10 is connected to the positive terminal of the second light-emitting diode (LED). The negative terminal of the second light-emitting diode (LED) is grounded. The second function signal output terminal of the main control chip is connected to the speaker.

10. A doorbell for convenient use by deaf, mute, and blind people according to claim 9, characterized in that, The first functional signal output terminal of the main control chip is also connected to a mode switching switch. The mode switching switch is used to switch the ringtone when the speaker sounds, and is also used to record the digital signal of the transmitting module.

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