Level trigger alarm equipment

Abstract

The utility model discloses a level trigger alarm device which comprises a power supply module, a trigger control module, a network transmission module, an audio decoding control module, an operational amplification module, a power amplification module and a loudspeaker. The trigger control module is used for receiving an input trigger signal, and the trigger control module is connected with the audio decoding control module; the network transmission module is used for being in network connection with external terminal equipment and receiving digital signals transmitted by the terminal equipment, and the network transmission module is connected with the audio decoding control module; the audio decoding control module is connected with the operational amplification module, the operational amplification module is connected with the power amplification module, and the power amplification module is connected with the loudspeaker; the power supply module is used for supplying power. The trigger control module is arranged in the level trigger alarm device, so that the level trigger alarm device can be compatible with alarm signals of different level types, and is good in applicability and more convenient to use. The method can be widely applied to the technical field of alarm equipment.

Description

Technical Field

[0001] The present application relates to the technical field of alarm devices, and in particular to a level-triggered alarm device. Background Art

[0002] Alarm devices are devices that sound an audible alarm, typically alerting people to specific events or dangerous situations. These devices are widely used in various scenarios, including home security, industrial production, traffic management, and medical monitoring.

[0003] In the related art, existing alarm devices often have pre-set trigger modes, such as high-level triggering or low-level triggering. In actual applications, such alarm devices have found poor applicability. For example, some alarm devices are set to trigger at a high level, but they will not function properly if the alarm signal is at a low level. External conversion devices are required, which is inefficient and costly to implement.

[0004] In summary, the problems existing in related technologies need to be solved urgently. Utility Model Content

[0005] The purpose of this application is to solve one of the technical problems existing in the related art to at least a certain extent.

[0006] To this end, one purpose of an embodiment of the present application is to provide a level-triggered alarm device.

[0007] In order to achieve the above technical objectives, the technical solutions adopted in the embodiments of the present application include:

[0008] In one aspect, an embodiment of the present application provides a level-triggered alarm device, comprising:

[0009] Power supply module, trigger control module, network transmission module, audio decoding control module, operational amplifier module, power amplifier module and speaker;

[0010] The trigger control module is used to receive an input trigger signal, and the trigger control module is connected to the audio decoding control module; the network transmission module is used to connect to an external terminal device network and receive a digital signal transmitted by the terminal device, and the network transmission module is connected to the audio decoding control module;

[0011] The audio decoding control module is connected to the operational amplifier module, the operational amplifier module is connected to the power amplifier module, and the power amplifier module is connected to the speaker;

[0012] The power supply module is used to supply power to the trigger control module, the network transmission module, the audio decoding control module, the operational amplifier module, the power amplifier module and the speaker.

[0013] In addition, the level-triggered alarm device according to the above embodiment of the present application may also have the following additional technical features:

[0014] Furthermore, in one embodiment of the present application, the power module includes a battery.

[0015] Furthermore, in one embodiment of the present application, the battery is a solar cell.

[0016] Further, in one embodiment of the present application, the trigger control module includes a signal interface, a first analog switch chip, a second analog switch chip, a second diode, a fifth diode, a third diode, an optocoupler, a fifth resistor, a sixth resistor, a seventh resistor, a tenth resistor, a twelfth resistor, a fourteenth resistor, a second transistor and a trigger unit;

[0017] The first output port of the signal interface is connected to the fourteenth pin of the first analog switch chip, the cathode end of the second diode, and the third pin of the second analog switch chip, the second output port of the signal interface is grounded, and the second output port of the signal interface is also connected to the anode end of the second diode;

[0018] The fourth pin of the second analog switch chip is connected to the cathode terminal of the fifth diode and the cathode terminal of the third diode, the positive terminal of the fifth diode is connected to the base of the second transistor through the sixth resistor, and the positive terminal of the fifth diode is also connected to the first power port through the seventh resistor; the positive terminal of the third diode is connected to the first power port through the fourteenth resistor, and the positive terminal of the third diode is also connected to the second port of the optocoupler, the first power port is connected to the first port of the optocoupler through the twelfth resistor, and the third port of the optocoupler is connected to the ninth pin, the tenth pin, and the eleventh pin of the first analog switch chip through the fifth resistor;

[0019] The emitter of the second transistor is connected to the ninth pin, the tenth pin, and the eleventh pin of the second analog switch chip, the collector of the second transistor is connected to the second power port via the tenth resistor, the second power port is connected to the fifteenth pin of the first analog switch chip, and the first analog switch chip is connected to the trigger unit;

[0020] Wherein, the voltage of the first power port is 3.3V.

[0021] Furthermore, in one embodiment of the present application, the trigger unit includes a first diode, a first resistor, a second resistor, a third resistor, a fourth resistor, a voltage regulator diode and a first transistor;

[0022] The twelfth pin of the first analog switch chip is connected to the cathode terminal of the first diode, and the positive terminal of the first diode is connected to the first power port through the first resistor; the thirteenth pin of the first analog switch chip is connected to the cathode terminal of the voltage regulator and the first terminal of the second resistor through the third resistor, the positive terminal of the voltage regulator is grounded, the second terminal of the second resistor is connected to the base of the first transistor, and the second end of the second resistor is also grounded through the fourth resistor, the emitter of the first transistor is grounded, and the collector of the first transistor is connected to the first power port through the first resistor.

[0023] Further, in one embodiment of the present application, the audio decoding control module includes an audio decoder and a microprocessor;

[0024] The microprocessor is connected to the audio decoder and the network transmission module, and the audio decoder is connected to the operational amplifier module;

[0025] The microprocessor is further connected to the positive terminal of the first diode and the connection point of the first resistor.

[0026] Furthermore, in one embodiment of the present application, the microprocessor includes an STC12 series single-chip microcomputer chip or an STM32 series single-chip microcomputer chip.

[0027] Furthermore, in one embodiment of the present application, the first analog switch chip and the second analog switch chip are CD4053 chips.

[0028] Furthermore, in one embodiment of the present application, the network transmission module includes a wifi module, an NB-IoT module or a Zigbee module.

[0029] Furthermore, in one embodiment of the present application, the power amplifier module includes a TPA3116 chip.

[0030] The advantages and benefits of this application will be partially given in the following description, and partially become apparent from the following description, or learned through practice of this application:

[0031] The embodiment of the present application discloses a level-triggered alarm device, which includes a power supply module, a trigger control module, a network transmission module, an audio decoding control module, an operational amplifier module, a power amplifier module, and a speaker; the trigger control module is used to receive an input trigger signal, and the trigger control module is connected to the audio decoding control module; the network transmission module is used to connect to an external terminal device network and receive a digital signal transmitted by the terminal device, and the network transmission module is connected to the audio decoding control module; the audio decoding control module is connected to the operational amplifier module, the operational amplifier module is connected to the power amplifier module, and the power amplifier module is connected to the speaker; the power supply module is used to power the trigger control module, the network transmission module, the audio decoding control module, the operational amplifier module, the power amplifier module, and the speaker. The level-triggered alarm device is provided with a trigger control module, which can be compatible with alarm signals of different level types, has good applicability, and is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following introduction is made to the drawings of the embodiments of the present application or the related technical solutions in the prior art. It should be understood that the drawings introduced below are only for the convenience of clearly describing some embodiments of the technical solutions of the present utility model. For those skilled in the art, other drawings can be obtained based on these drawings without any creative work.

[0033] Figure 1 A schematic structural diagram of a level-triggered alarm device provided in an embodiment of the present application is shown;

[0034] Figure 2 A circuit diagram of a power amplifier module and a speaker provided in an embodiment of the present application is shown;

[0035] Figure 3 A circuit diagram of a trigger control module provided in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0036] The present application is further described below in conjunction with the accompanying drawings and specific embodiments. The described embodiments should not be considered as limiting the present application. All other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0037] In the following description, reference is made to “some embodiments”, which describes a subset of all possible embodiments, but it will be understood that “some embodiments” may be the same subset or different subsets of all possible embodiments and may be combined with each other without conflict.

[0038] In the description of the present application, it should be understood that the terms "length", "up", "down", "front", "back", "left", "right", "top", "inside", "outside", "axial", "radial", "circumferential", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present application. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, "multiple" means two or more.

[0039] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0040] Alarm devices are devices that sound an audible alarm, typically alerting people to specific events or dangerous situations. These devices are widely used in various scenarios, including home security, industrial production, traffic management, and medical monitoring.

[0041] In the related art, existing alarm devices often have pre-set trigger modes, such as high-level triggering or low-level triggering. In actual applications, such alarm devices have found poor applicability. For example, some alarm devices are set to trigger at a high level, but they will not function properly if the alarm signal is at a low level. External conversion devices are required, which is inefficient and costly to implement.

[0042] In view of this, an embodiment of the present application provides a level-triggered alarm device, which is equipped with a trigger control module and is compatible with alarm signals of different level types. It has good applicability and is more convenient to use.

[0043] Below, in conjunction with specific drawings, a level-triggered alarm device provided in an embodiment of the present application is described in detail.

[0044] The embodiment of the present application provides a level-triggered alarm device that can be applied to the field of alarm device technology. Figure 1 , a level-triggered alarm device provided in an embodiment of the present application mainly includes:

[0045] Power supply module, trigger control module, network transmission module, audio decoding control module, operational amplifier module, power amplifier module and speaker;

[0046] The trigger control module is used to receive an input trigger signal, and the trigger control module is connected to the audio decoding control module; the network transmission module is used to connect to an external terminal device network and receive a digital signal transmitted by the terminal device, and the network transmission module is connected to the audio decoding control module;

[0047] The audio decoding control module is connected to the operational amplifier module, the operational amplifier module is connected to the power amplifier module, and the power amplifier module is connected to the speaker;

[0048] The power supply module is used to supply power to the trigger control module, the network transmission module, the audio decoding control module, the operational amplifier module, the power amplifier module and the speaker.

[0049] In an embodiment of the present application, a level-triggered alarm device is provided. The alarm device includes a power module, a trigger control module, a network transmission module, an audio decoding control module, an operational amplifier module, a power amplifier module, and a speaker. The power module can power the other modules and components. The power module can include a battery, which can be a rechargeable battery, such as a solar cell. In this way, the level-triggered alarm device can be powered by solar energy in an outdoor environment, eliminating the need for frequent battery replacement or manual charging, thereby improving the ease of use of the level-triggered alarm device.

[0050] In a level-triggered alarm device, a trigger control module is provided. The trigger control module can be used to receive an input trigger signal. The trigger control module is compatible with both high-level and low-level alarm signals. That is, whether a high-level alarm signal or a low-level alarm signal is input, a sound broadcast can be implemented. In an embodiment of the present application, the trigger control module is connected to the audio decoding control module. When the trigger control module receives the alarm signal as a trigger signal, it can transmit a control instruction to the audio decoding control module, causing the audio decoding control module to operate and control subsequent modules to output a sound alarm.

[0051] In an embodiment of the present application, a level-triggered alarm device includes a network transmission module, which can be used to establish a network connection with an external terminal device. The external terminal device can transmit audio in the form of a digital signal to the level-triggered alarm device via the network transmission module. The audio decoding control module is connected to the network transmission module and can decode the audio in the form of a digital signal into an audio signal. Here, there is no restriction on the type of external terminal device, which can be flexibly set according to actual needs. The network transmission module can adopt a Wi-Fi module, an NB-IoT module, or a Zigbee module.

[0052] In the embodiment of the present application, the output end of the audio decoding control module is connected to the operational amplifier module, which is further connected to the power amplifier module, and the output end of the power amplifier module is connected to the speaker. The audio signal decoded by the audio decoding control module is amplified by the front operational amplifier module, input to the power amplifier module for further amplification, and then output to the speaker for conversion into sound playback. Figure 2 , Figure 2 The circuit diagram of a power amplifier module and a speaker provided in an embodiment of the present application is shown. In the embodiment of the present application, a TPA3116 chip can be set in the power amplifier module, but is not limited thereto.

[0053] For details, please refer to Figure 3 , Figure 3 The circuit diagram of a trigger control module provided in an embodiment of the present application is shown. The trigger control module includes a signal interface P1, a first analog switch chip U1, a second analog switch chip U2, a second diode D2, a fifth diode D5, a third diode D3, an optocoupler IC1, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, a tenth resistor R10, a twelfth resistor R12, a fourteenth resistor R14, a second transistor Q2, and a trigger unit.

[0054] The first output port of the signal interface P1 is connected to the fourteenth pin of the first analog switch chip U1, the cathode end of the second diode D2, and the third pin of the second analog switch chip U2. The second output port of the signal interface P1 is grounded. The second output port of the signal interface P1 is also connected to the anode end of the second diode D2.

[0055] The fourth pin of the second analog switch chip U2 is connected to the cathode terminal of the fifth diode D5 and the cathode terminal of the third diode D3, the anode terminal of the fifth diode D5 is connected to the base of the second transistor Q2 through the sixth resistor R6, and the anode terminal of the fifth diode D5 is also connected to the first power port through the seventh resistor R7; the anode terminal of the third diode D3 is connected to the first power port through the fourteenth resistor R14, and the anode terminal of the third diode D3 is also connected to the second port of the optocoupler IC1, the first power port is connected to the first port of the optocoupler IC1 through the twelfth resistor R12, and the third port of the optocoupler IC1 is connected to the ninth pin, the tenth pin, and the eleventh pin of the first analog switch chip U1 through the fifth resistor R5;

[0056] The emitter of the second transistor Q2 is connected to the ninth pin, the tenth pin, and the eleventh pin of the second analog switch chip U2, the collector of the second transistor Q2 is connected to the second power port via the tenth resistor R10, the second power port is connected to the fifteenth pin of the first analog switch chip U1, and the first analog switch chip U1 is connected to the trigger unit;

[0057] Wherein, the voltage of the first power port is 3.3V.

[0058] The trigger unit includes a first diode D1, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a voltage regulator Z1 and a first transistor Q1;

[0059] The twelfth pin of the first analog switch chip U1 is connected to the cathode terminal of the first diode D1, and the positive terminal of the first diode D1 is connected to the first power port through the first resistor R1; the thirteenth pin of the first analog switch chip U1 is connected to the cathode terminal of the voltage regulator Z1 and the first end of the second resistor R2 through the third resistor R3, the positive terminal of the voltage regulator Z1 is grounded, the second end of the second resistor R2 is connected to the base of the first transistor Q1, and the second end of the second resistor R2 is also grounded through the fourth resistor R4, the emitter of the first transistor Q1 is grounded, and the collector of the first transistor Q1 is connected to the first power port through the first resistor R1.

[0060] In an embodiment of the present application, two analog switch chips can be used in the trigger control module to implement a self-locking and interlocking design. Regardless of whether the input trigger signal is a high level or a low level, the input of the trigger signal can be normally fed back to the audio decoding control module.

[0061] Specifically, the two analog switch chips included in the trigger control module can be CD4053 chips, respectively designated as the first analog switch chip U1 and the second analog switch chip U2. The trigger control module includes a signal interface P1, which can be connected to other devices to receive a trigger signal. The second analog switch chip U2 is connected to the seventh resistor R7 via the fifth diode D5. The side of the seventh resistor R7 connected to the fifth diode D5 is marked as point A. The pull-up voltage of the seventh resistor R7 is 3.3V. When the signal interface P1 receives a low-level trigger signal, point A is high. When the signal interface P1 receives a high-level trigger signal, point A is low.

[0062] When point A is at a low level, the second transistor Q2 is not conducting. At this time, the optocoupler IC1 is conducting. The ninth, tenth, and eleventh pins of the first analog switch chip U1 become high levels, and the analog switch of the first analog switch chip U1 changes from X-X0 conduction to X-X1 conduction, and from Y-Y0 conduction to Y-Y1 conduction, entering a self-locking state. Locking Y and Y1 is closed, entering a high-level trigger circuit composed of the second resistor R2, the third resistor R3, the fourth resistor R4, the voltage regulator Z1, and the first transistor Q1. At this time, the input high level will trigger the connection point IO1 between the positive terminal of the first diode D1 and the first resistor R1 to become low, so that the audio decoding control module receives the instruction caused by the trigger signal.

[0063] When point A is at a high level, the ninth, tenth, and eleventh pins of the second analog switch chip U2 are triggered to become high levels through the seventh resistor R7 and the second transistor Q2. The analog switch of the second analog switch chip U2 changes from X-X0 conduction to X-X1 conduction, and from Z-Z0 conduction to Z-Z1 conduction, entering a self-locking state. Locking Z and Z1 are closed, locking the optocoupler IC1 in a non-conducting state. The first analog switch chip U1 is locked in the X-X0, Y-Y0 states and is not affected by the trigger signal. At this time, the input low level will also cause the connection point IO1 between the positive terminal of the first diode D1 and the first resistor R1 to become low, so that the audio decoding control module receives the instruction caused by the trigger signal.

[0064] Moreover, in the embodiment of the present application, the first diode D1 and the voltage regulator Z1 are provided to prevent the subsequent components from being burned out when a high voltage is connected. The function of the second diode D2 is to prevent the positive and negative terminals of the signal interface P1 from being reversely connected, which may cause the device to be burned out.

[0065] In some embodiments, the audio decoding control module includes an audio decoder and a microprocessor;

[0066] The microprocessor is connected to the audio decoder and the network transmission module, and the audio decoder is connected to the operational amplifier module;

[0067] The microprocessor is also connected to the positive terminal of the first diode D1 and the connection point of the first resistor R1.

[0068] In an embodiment of the present application, the audio decoding control module may include an audio decoder and a microprocessor, wherein the microprocessor is connected to the audio decoder and the network transmission module. The microprocessor is a primary control component and can be connected to the connection point IO1 between the positive terminal of the first diode D1 and the first resistor R1 to receive instructions caused by a trigger signal to control the output of the audio decoder. The microprocessor can be an STC12 series single-chip microcomputer chip or an STM32 series single-chip microcomputer chip, but is not limited thereto.

[0069] It should be noted that in the embodiment of the present application, the microprocessor can not only receive digital signals transmitted by the network transmission module, but can also pre-store some data itself, which can also be transmitted to the audio decoder for processing and playback. This application does not impose any restrictions on this.

[0070] Throughout this specification, references to terms such as "one embodiment," "another embodiment," or "certain embodiments" indicate that a specific feature, structure, material, or characteristic described in conjunction with an embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0071] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A level-triggered alarm device, characterized in that: include: Power supply module, trigger control module, network transmission module, audio decoding control module, operational amplifier module, power amplifier module and speaker; The trigger control module is used to receive an input trigger signal, and the trigger control module is connected to the audio decoding control module; the network transmission module is used to connect to an external terminal device network and receive a digital signal transmitted by the terminal device, and the network transmission module is connected to the audio decoding control module; The audio decoding control module is connected to the operational amplifier module, the operational amplifier module is connected to the power amplifier module, and the power amplifier module is connected to the speaker; The power supply module is used to supply power to the trigger control module, the network transmission module, the audio decoding control module, the operational amplifier module, the power amplifier module and the speaker.

2. A level-triggered alarm device according to claim 1, characterized in that: The power module includes a battery.

3. A level-triggered alarm device according to claim 2, characterized in that: The battery is a solar cell.

4. A level-triggered alarm device according to any one of claims 1 to 3, characterized in that: The trigger control module includes a signal interface, a first analog switch chip, a second analog switch chip, a second diode, a fifth diode, a third diode, an optocoupler, a fifth resistor, a sixth resistor, a seventh resistor, a tenth resistor, a twelfth resistor, a fourteenth resistor, a second transistor and a trigger unit; The first output port of the signal interface is connected to the fourteenth pin of the first analog switch chip, the cathode end of the second diode, and the third pin of the second analog switch chip, the second output port of the signal interface is grounded, and the second output port of the signal interface is also connected to the anode end of the second diode; The fourth pin of the second analog switch chip is connected to the cathode terminal of the fifth diode and the cathode terminal of the third diode, the positive terminal of the fifth diode is connected to the base of the second transistor through the sixth resistor, and the positive terminal of the fifth diode is also connected to the first power port through the seventh resistor; the positive terminal of the third diode is connected to the first power port through the fourteenth resistor, and the positive terminal of the third diode is also connected to the second port of the optocoupler, the first power port is connected to the first port of the optocoupler through the twelfth resistor, and the third port of the optocoupler is connected to the ninth pin, the tenth pin, and the eleventh pin of the first analog switch chip through the fifth resistor; The emitter of the second transistor is connected to the ninth pin, the tenth pin, and the eleventh pin of the second analog switch chip, the collector of the second transistor is connected to the second power port via the tenth resistor, the second power port is connected to the fifteenth pin of the first analog switch chip, and the first analog switch chip is connected to the trigger unit; Wherein, the voltage of the first power port is 3.3V.

5. A level-triggered alarm device according to claim 4, characterized in that: The trigger unit includes a first diode, a first resistor, a second resistor, a third resistor, a fourth resistor, a voltage regulator and a first transistor; The twelfth pin of the first analog switch chip is connected to the cathode terminal of the first diode, and the positive terminal of the first diode is connected to the first power port through the first resistor; the thirteenth pin of the first analog switch chip is connected to the cathode terminal of the voltage regulator and the first terminal of the second resistor through the third resistor, the positive terminal of the voltage regulator is grounded, the second terminal of the second resistor is connected to the base of the first transistor, and the second end of the second resistor is also grounded through the fourth resistor, the emitter of the first transistor is grounded, and the collector of the first transistor is connected to the first power port through the first resistor.

6. A level-triggered alarm device according to claim 5, characterized in that: The audio decoding control module includes an audio decoder and a microprocessor; The microprocessor is connected to the audio decoder and the network transmission module, and the audio decoder is connected to the operational amplifier module; The microprocessor is further connected to the positive terminal of the first diode and the connection point of the first resistor.

7. A level-triggered alarm device according to claim 6, characterized in that: The microprocessor includes an STC12 series single-chip microcomputer chip or an STM32 series single-chip microcomputer chip.

8. The level-triggered alarm device according to claim 4, characterized in that: The first analog switch chip and the second analog switch chip are CD4053 chips.

9. The level-triggered alarm device according to claim 1, characterized in that: The network transmission module includes a Wi-Fi module, an NB-IoT module or a Zigbee module.

10. The level-triggered alarm device according to claim 1, characterized in that: The power amplifier module includes a TPA3116 chip.

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