Alarm identification circuit and socket

Abstract

The utility model provides an alarm identification circuit and a socket, and relates to the field of alarm identification. The alarm identification circuit comprises an audio acquisition module, a frequency adjustment module and a frequency identification module; the audio acquisition module is connected with the frequency identification module and is used for acquiring an audio signal and sending the audio signal to the frequency identification module; the frequency adjustment module is connected with the frequency identification module, and the frequency adjustment module is used for adjusting the target alarm frequency of the frequency identification module; and the frequency identification module is used for outputting a control signal to turn off the load when the frequency of the audio signal is determined to be consistent with the target alarm frequency, so that the alarm sound emitted by the disaster alarm can be identified, the safety is improved, meanwhile, the household electrical equipment is convenient to control and monitor, and more effective energy utilization can be realized.

Description

Technical Field

[0001] The present application relates to the technical field of alarm identification, and in particular to an alarm identification circuit and a socket. Background Art

[0002] When a natural disaster such as a fire occurs, the disaster alarm will sound an alarm. However, due to various reasons, users may not be able to respond to the disaster alarm signal in time and shut down electrical equipment, resulting in some dangerous phenomena. Utility Model Content

[0003] In order to at least overcome the above-mentioned deficiencies in the prior art, the purpose of the present application is to provide an alarm identification circuit and a socket.

[0004] In a first aspect, an embodiment of the present application provides an alarm identification circuit, the alarm identification circuit comprising: an audio acquisition module, a frequency adjustment module and a frequency identification module;

[0005] The audio acquisition module is connected to the frequency recognition module, and the audio acquisition module is used to collect audio signals and send them to the frequency recognition module;

[0006] The frequency adjustment module is connected to the frequency identification module, and the frequency adjustment module is used to adjust the target alarm frequency of the frequency identification module;

[0007] The frequency identification module is used to output a control signal to turn off the load when it is determined that the frequency of the audio signal matches the target alarm frequency.

[0008] In a possible implementation, the frequency identification module includes a timing capacitor terminal, a timing resistor terminal, an input terminal, and an output terminal;

[0009] The timing capacitor end and the timing resistor end are respectively connected to the frequency adjustment module, and the frequency adjustment module is used to adjust the external capacitor of the timing capacitor end and the external resistor of the timing resistor end to adjust the target alarm frequency of the frequency identification module;

[0010] The input end is connected to the audio acquisition module, and the output end is used to output a control signal to turn off the load.

[0011] In a possible implementation, the frequency adjustment module includes at least one capacitance adjustment unit, and the timing capacitor end is respectively connected to each of the capacitance adjustment units;

[0012] The capacitance adjustment unit includes a first capacitor and a first switching device; the first electrode of the first capacitor is connected to the timing capacitor end, and the second electrode of the first capacitor is connected to the first switching device; the first switching device includes a frequency modulation control end, and the first switching device grounds or suspends the second electrode of the first capacitor according to a signal obtained from the frequency modulation control end.

[0013] In a possible implementation, the frequency adjustment module further includes a variable resistor;

[0014] The timing resistance end of the frequency identification module is grounded via the variable resistor and at least one of the capacitance adjustment units in sequence.

[0015] In a possible implementation, the audio acquisition module includes a DC power input terminal, an alarm acquisition component, a second switch device, a second capacitor, a third capacitor, a first resistor, a second resistor, a third resistor and a fourth resistor;

[0016] The DC power input terminal is connected to the input terminal of the frequency identification module via the first resistor and the second capacitor in sequence; the DC power input terminal is grounded via the first resistor and the second switch device in sequence; the DC power input terminal is grounded via the second resistor and the third resistor in sequence, and the control terminal of the second switch device is connected between the second resistor and the third resistor; the DC power input terminal is grounded via the fourth resistor and the alarm collection component in sequence; the DC power input terminal is connected to the control terminal of the second switch device via the fourth resistor and the third capacitor in sequence.

[0017] In one possible implementation, the frequency identification module includes a universal phase-locked loop circuit tone decoder.

[0018] In a second aspect, an embodiment of the present application further provides a socket, the socket comprising the alarm identification circuit, the power access terminal, the load switch and the load access terminal described in any of the above aspects;

[0019] The load switch is connected between the power supply access terminal and the load access terminal, and is used to disconnect the electrical connection between the power supply access terminal and the load access terminal according to a control signal.

[0020] In a possible implementation, the socket further includes a communication module, which is connected to an output end of the frequency identification module, and the communication module is used to turn off the load according to a control signal output by the output end.

[0021] In a possible implementation, the frequency adjustment module includes at least one frequency modulation control terminal, the communication module is respectively connected to each of the frequency modulation control terminals, and the frequency adjustment module adjusts the target alarm frequency of the frequency identification module according to a signal received from the frequency modulation control terminal.

[0022] In a possible implementation, the communication module is a wireless communication module.

[0023] Based on any of the above aspects, the alarm identification circuit and socket provided in the embodiment of the present application, the frequency adjustment module can adjust the target alarm frequency of the frequency identification module, so that the frequency identification module can identify the alarm sound emitted by the disaster alarm and shut down the output of the load to improve safety. At the same time, it is also convenient to control and monitor household electrical appliances, which can achieve more efficient energy utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 One of the structural schematic diagrams of the alarm identification circuit provided in this embodiment;

[0026] Figure 2 The second structural diagram of the alarm identification circuit provided in this embodiment;

[0027] Figure 3 One of the structural schematic diagrams of the frequency adjustment module provided in this embodiment;

[0028] Figure 4 The second structural diagram of the frequency adjustment module provided in this embodiment;

[0029] Figure 5 A schematic diagram of the structure of the audio acquisition module provided in this embodiment;

[0030] Figure 6 This is a schematic diagram of the structure of the socket provided in this embodiment.

[0031] Icon: 100-audio acquisition module; 200-frequency adjustment module; 300-frequency identification module; 210-capacitance adjustment unit; 400-communication module. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0034] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0035] In the description of this application, it should be noted that the terms "upper", "lower", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the application is usually placed when in use, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0036] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0037] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0038] It should be noted that, in the absence of conflict, different features in the embodiments of the present application may be combined with each other.

[0039] The specific implementation of the utility model is described in detail below in conjunction with the accompanying drawings.

[0040] Please refer to Figure 1 , Figure 1 A possible structural diagram of the alarm identification circuit provided in this embodiment is illustrated. In this embodiment, the alarm identification circuit may include an audio acquisition module 100 , a frequency adjustment module 200 and a frequency identification module 300 .

[0041] The audio acquisition module 100 is connected to the frequency identification module 300 . The audio acquisition module 100 can be used to collect audio signals and send them to the frequency identification module 300 .

[0042] In this embodiment, the audio collection module 100 can be used to collect the audio signal and send the collected audio signal to the frequency identification module 300. The audio signal can include an alarm sound.

[0043] The frequency adjustment module 200 is connected to the frequency identification module 300 , and the frequency adjustment module 200 can be used to adjust the target alarm frequency of the frequency identification module 300 .

[0044] In this embodiment, the frequency adjustment module 200 can be used to adjust the target alarm frequency of the frequency identification module 300 so that the frequency identification module 300 can identify the alarm sound with the same frequency as the target alarm frequency.

[0045] The frequency identification module 300 may be configured to output a control signal to shut down a load when it is determined that the frequency of the audio signal matches the target alarm frequency.

[0046] In this embodiment, the frequency identification module 300 can be used to receive the audio signal sent by the audio acquisition module 100, and when it is determined that the frequency of the audio signal is equal to the target alarm frequency, output a low level signal to turn off the load.

[0047] In the above structure, the frequency adjustment module 200 adjusts the target alarm frequency of the frequency identification module 300, so that the frequency identification module 300 can recognize the alarm sound emitted by the disaster alarm and shut down the output of the load to improve safety. At the same time, it is also convenient to control and monitor household electrical appliances, which can achieve more efficient energy utilization.

[0048] In one possible implementation, see Figure 2 The frequency identification module 300 may include a timing capacitor terminal TIM-C, a timing resistor terminal TIM-R, an input terminal IN and an output terminal OUT.

[0049] The timing capacitor terminal TIM-C and the timing resistor terminal TIM-R are respectively connected to the frequency adjustment module 200, and the frequency adjustment module 200 can be used to adjust the external capacitor of the timing capacitor terminal TIM-C and the external resistor of the timing resistor terminal TIM-R to adjust the target alarm frequency of the frequency identification module 300.

[0050] The input terminal IN is connected to the audio acquisition module 100 , and the output terminal OUT is used to output a control signal to turn off a load.

[0051] In this embodiment, the audio acquisition module 100 can send the collected audio signal to the input terminal IN of the frequency recognition module 300. After amplification, frequency selection and other processing by the frequency recognition module 300, the output terminal OUT of the frequency recognition module 300 can output a low-level signal to turn off the load.

[0052] In one possible implementation, see Figure 3 The frequency adjustment module 200 may include at least one capacitance adjustment unit 210 , and the timing capacitor terminal TIM-C is connected to each of the capacitance adjustment units 210 .

[0053] Specifically, the number of the capacitance adjustment units 210 may be three, and the timing capacitor terminal TIM-C may be connected to the three capacitance adjustment units 210 respectively.

[0054] The capacitance adjustment unit 210 may include a first capacitor and a first switching device; the first electrode of the first capacitor is connected to the timing capacitor terminal TIM-C, and the second electrode of the first capacitor is connected to the first switching device; the first switching device may include a frequency modulation control terminal, and the first switching device grounds or suspends the second electrode of the first capacitor according to a signal obtained from the frequency modulation control terminal.

[0055] In this embodiment, the first switching device can be an insulated gate field effect transistor, the source of the first switching device is grounded, the drain of the first switching device is connected to the second electrode of the first capacitor, and the frequency modulation control end of the first switching device can be connected to other controllers to control the conduction or disconnection of the first switching device.

[0056] In some possible implementations, when the number of the capacitance adjustment units 210 is three, other controllers may control any of the first switch devices to be disconnected to change the external capacitance of the timing capacitor terminal TIM-C, thereby adjusting the target alarm frequency of the frequency identification module 300. For example, when the first switch device Q1a is disconnected, the external capacitance of the timing capacitor terminal TIM-C may include the first capacitor C1b and the first capacitor C1c.

[0057] Specifically, the frequency modulation control end of the first switch device Q1a can be connected to other controllers via resistor R6, and the frequency modulation control end of the first switch device Q1a can be grounded via resistor R5. The frequency modulation control end of the first switch device Q1b can be connected to other controllers via resistor R8, and the frequency modulation control end of the first switch device Q1b can be grounded via resistor R7. The frequency modulation control end of the first switch device Q1c can be connected to other controllers via resistor R10, and the frequency modulation control end of the first switch device Q1c can be grounded via resistor R9.

[0058] In one possible implementation, see Figure 4 , the frequency adjustment module 200 may further include a variable resistor.

[0059] The timing resistor terminal TIM-R of the frequency identification module 300 is grounded via the variable resistor R and at least one of the capacitance adjustment units 210 in sequence.

[0060] In this embodiment, the timing resistor terminal TIM-R can be grounded via the variable resistor R, the resistor R11 and at least one of the capacitance adjustment units 210 in sequence. By adjusting the resistance value of the variable resistor R, the target alarm frequency of the frequency identification module 300 can be further adjusted.

[0061] In one possible implementation, see Figure 5 The audio acquisition module 100 may include a DC power input terminal VCC, an alarm acquisition component, a second switch device Q2, a second capacitor C2, a third capacitor C3, a first resistor R1, a second resistor R2, a third resistor R3 and a fourth resistor R4.

[0062] The DC power input terminal VCC can be connected to the input terminal IN of the frequency identification module 300 via the first resistor R1 and the second capacitor C2 in sequence. The DC power input terminal VCC can be grounded via the first resistor R1 and the second switch device Q2 in sequence, and the second capacitor C2 is connected between the first resistor R1 and the second switch device Q2. The DC power input terminal VCC can be grounded via the second resistor R2 and the third resistor R3 in sequence, and the control end of the second switch device Q2 is connected between the second resistor R2 and the third resistor R3. The DC power input terminal VCC can be grounded via the fourth resistor R4 and the alarm collection component in sequence. The DC power input terminal VCC can be connected to the control end of the second switch device Q2 via the fourth resistor R4 and the third capacitor C3 in sequence.

[0063] Specifically, the second switch device Q2 may be an NPN transistor, the base of the second switch device Q2 may be connected between the second resistor R2 and the third resistor R3, the collector of the second switch device Q2 may be connected to the first resistor R1, and the emitter of the second switch device Q2 may be grounded. The alarm collection component may be a microphone.

[0064] In a possible implementation, the frequency identification module 300 may include a universal phase-locked loop circuit tone decoder (LM567).

[0065] Please refer again Figure 2 The frequency identification module 300 may include an output filter terminal Ofil, a loop filter terminal Lfil, an input terminal IN, a positive power supply terminal Vcc, a timing resistor terminal TIM-R, a timing capacitor terminal TIM-C, a ground terminal GND and an output terminal OUT.

[0066] The present application also provides a socket, please refer to Figure 6 The socket may include the alarm identification circuit, a power access terminal Input, a load switch and a load access terminal Output.

[0067] The load switch is connected between the power supply access terminal Input and the load access terminal Output, and the load switch can be used to disconnect the electrical connection between the power supply access terminal Input and the load access terminal Output according to a control signal.

[0068] In this embodiment, the socket may also include a rectifier module 500, a voltage stabilizing module 600 and a power meter 700. The rectifier module 500 can be used to convert an AC signal into a DC signal, the voltage stabilizing module 600 can be used to stabilize the input voltage and output a stable voltage, and the power meter 700 can be used to test the power consumption of the circuit.

[0069] It should be noted that the socket provided in this embodiment can also be other devices with wireless communication, voice recognition and intelligent control functions, for example, it can also be a switch, controller, etc., which is not specifically limited in this embodiment.

[0070] In one possible implementation, please refer again to Figure 6 The socket may further include a communication module 400, wherein the communication module 400 is connected to the output terminal OUT of the frequency identification module 300, and the communication module 400 may be used to turn off the load according to a control signal outputted from the output terminal OUT.

[0071] In a possible implementation, the frequency adjustment module 200 may include at least one frequency modulation control terminal, the communication module 400 is respectively connected to each of the frequency modulation control terminals, and the frequency adjustment module 200 adjusts the target alarm frequency of the frequency identification module 300 according to the signal received from the frequency modulation control terminal.

[0072] In this embodiment, the communication module 400 may be connected to the frequency modulation control terminal of the first switch device to control the first switch device to be turned on or off, thereby adjusting the target alarm frequency of the frequency identification module 300 .

[0073] In a possible implementation, the communication module 400 may be a wireless communication module.

[0074] In this embodiment, in the networked state, the communication module 400 can send prompt information to the user terminal. Specifically, the user can be prompted by a smartphone application, voice prompt or push notification.

[0075] To sum up, this embodiment provides an alarm identification circuit and a socket. The frequency adjustment module can adjust the target alarm frequency of the frequency identification module to enable the frequency identification module to identify the alarm sound emitted by the disaster alarm and shut down the output of the load to improve safety. At the same time, it is also convenient to control and monitor household electrical appliances, which can achieve more efficient energy utilization.

[0076] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0077] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An alarm identification circuit, characterized in that: include: Audio acquisition module, frequency adjustment module and frequency recognition module; The audio acquisition module is connected to the frequency recognition module, and the audio acquisition module is used to collect audio signals and send them to the frequency recognition module; The frequency adjustment module is connected to the frequency identification module, and the frequency adjustment module is used to adjust the target alarm frequency of the frequency identification module; The frequency identification module is used to output a control signal to turn off the load when it is determined that the frequency of the audio signal matches the target alarm frequency.

2. The alarm identification circuit according to claim 1, characterized in that: The frequency identification module includes a timing capacitor terminal, a timing resistor terminal, an input terminal and an output terminal; The timing capacitor end and the timing resistor end are respectively connected to the frequency adjustment module, and the frequency adjustment module is used to adjust the external capacitor of the timing capacitor end and the external resistor of the timing resistor end to adjust the target alarm frequency of the frequency identification module; The input end is connected to the audio acquisition module, and the output end is used to output a control signal to turn off the load.

3. The alarm identification circuit according to claim 2, characterized in that: The frequency adjustment module includes at least one capacitance adjustment unit, and the timing capacitor end is respectively connected to each of the capacitance adjustment units; The capacitance adjustment unit includes a first capacitor and a first switching device; the first electrode of the first capacitor is connected to the timing capacitor end, and the second electrode of the first capacitor is connected to the first switching device; the first switching device includes a frequency modulation control end, and the first switching device grounds or suspends the second electrode of the first capacitor according to a signal obtained from the frequency modulation control end.

4. The alarm identification circuit according to claim 3, characterized in that: The frequency adjustment module also includes a variable resistor; The timing resistance end of the frequency identification module is grounded via the variable resistor and at least one of the capacitance adjustment units in sequence.

5. The alarm identification circuit according to claim 2, characterized in that: The audio acquisition module includes a DC power input terminal, an alarm acquisition component, a second switch device, a second capacitor, a third capacitor, a first resistor, a second resistor, a third resistor and a fourth resistor; The DC power input terminal is connected to the input terminal of the frequency identification module via the first resistor and the second capacitor in sequence; the DC power input terminal is grounded via the first resistor and the second switch device in sequence; the DC power input terminal is grounded via the second resistor and the third resistor in sequence, and the control terminal of the second switch device is connected between the second resistor and the third resistor; the DC power input terminal is grounded via the fourth resistor and the alarm collection component in sequence; the DC power input terminal is connected to the control terminal of the second switch device via the fourth resistor and the third capacitor in sequence.

6. The alarm identification circuit according to claim 1, characterized in that: The frequency identification module includes a universal phase-locked loop circuit tone decoder.

7. A socket, characterized in that: The device comprises the alarm identification circuit, the power supply access terminal, the load switch and the load access terminal as described in any one of claims 1 to 6; The load switch is connected between the power supply access terminal and the load access terminal, and is used to disconnect the electrical connection between the power supply access terminal and the load access terminal according to a control signal.

8. The socket according to claim 7, characterized in that: The socket further includes a communication module, which is connected to the output end of the frequency identification module, and is used to turn off the load according to a control signal output by the output end.

9. The socket according to claim 8, characterized in that: The frequency adjustment module includes at least one frequency modulation control terminal, the communication module is connected to each of the frequency modulation control terminals respectively, and the frequency adjustment module adjusts the target alarm frequency of the frequency identification module according to the signal received from the frequency modulation control terminal.

10. The socket according to claim 8, characterized in that The communication module is a wireless communication module.

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