Intelligent monitoring circuit and intelligent monitoring lamp structure

Abstract

The utility model relates to an intelligent monitoring circuit and an intelligent monitoring lamp structure, belongs to the technical field of high-voltage pulse control, and is particularly suitable for scenes needing high-precision high-voltage regulation and control such as mosquito killer lamps. The circuit comprises a power supply module, a proportional step-down module, a pulse maintaining module, a high-voltage ripple detection module and a communication control module. The ripple voltage of the secondary winding of the boosting transformer is detected in real time, and when the ripple exceeds the preset amplitude of the standard value, the communication control module forcibly pulls down the grid voltage of the MOS tube to turn off the output of the high-voltage pulse signal, so that closed-loop control is realized. According to the scheme, the problems of poor ripple suppression capability and dynamic response lag of a traditional circuit are solved, the high-voltage pulse stability and safety are improved, and the circuit is suitable for accurate regulation and control of high-voltage electric shock equipment such as intelligent mosquito killer lamps and the like.

Description

Technical Field

[0001] This utility model relates to the field of intelligent circuits, specifically to an intelligent monitoring circuit and an intelligent monitoring light structure. Background Technology

[0002] In the field of mosquito control, high-voltage electric shock mosquito killer lamps are widely used due to their instantaneous killing ability, but the existing technology still has the following core defects: (1) Insufficient high voltage stability and efficiency: Traditional mosquito killer lamps mostly adopt AC voltage multiplier or multi-stage diode-capacitor voltage multiplier rectification schemes, resulting in large output voltage fluctuations and significant increases in ripple when the load changes. For example, resistor charging or simple inductor energy storage will cause the pulse waveform to be distorted into an exponentially decaying wave, and the leakage inductance problem of the step-up transformer will exacerbate the waveform degradation. (2) Lack of dynamic control mechanism: Existing technology relies on fixed threshold shutdown protection (such as high-voltage grid short circuit trigger power cut-off), and lacks feedback-based closed-loop regulation capability. For example, when mosquitoes come into contact with the grid and cause a voltage drop, traditional circuits cannot adjust the PWM duty cycle in real time to maintain high voltage stability, and lack adaptive protection against grid short circuits and humid environments. Utility Model Content

[0003] In view of the above problems, this utility model provides an intelligent monitoring circuit and intelligent monitoring lamp structure to solve the problems of poor high voltage stability and lack of dynamic control and protection mechanism in existing high voltage electric shock mosquito killer lamps.

[0004] To achieve the above objectives, this application provides an intelligent monitoring circuit, comprising:

[0005] The power supply module provides the initial input voltage, and its output is electrically connected to the input of the proportional buck module.

[0006] The proportional buck module includes an input filter capacitor and an output Zener diode, used to convert the initial input voltage into the system operating voltage;

[0007] The pulse sustaining module includes a timer, a MOSFET, and a boost transformer. The output pin of the timer is connected to the gate of the MOSFET, and the drain of the MOSFET is connected to the primary winding of the boost transformer to generate a high-voltage pulse signal.

[0008] The high-voltage ripple detection module is used to convert the ripple voltage of the secondary winding of the step-up transformer into a feedback signal of 0-3.3V and transmit the feedback signal to the communication control module.

[0009] The communication control module is connected to the high-voltage ripple detection module via an SPI interface. The communication control module is used to forcibly pull down the gate voltage of the MOS transistor to turn off the high-voltage pulse output when the ripple voltage exceeds the preset amplitude of the standard value.

[0010] Furthermore, the communication control module is also electrically connected to an external photoresistor simulation module and an external charging detection simulation module via an ADC channel.

[0011] Furthermore, the turns ratio of the step-up transformer is 1:50.

[0012] Furthermore, the SPI interface has a clock frequency of 1MHz and a data format of 16-bit binary.

[0013] Furthermore, the high-voltage ripple detection module includes a voltage divider network consisting of a first resistor R1 with a first resistance value and a second resistor R2 with a second resistance value, with a voltage division ratio of 1:11, and is connected to an AD637 true RMS converter chip.

[0014] Furthermore, the AD637 true RMS converter chip has an input voltage range of 0-5V and a conversion accuracy of ±1%.

[0015] Furthermore, the communication control module is an AIR780EP chip.

[0016] Furthermore, the timer is an NE555 timer, and the communication control module is also used to dynamically adjust the PWM duty cycle of the timer according to the feedback signal.

[0017] Furthermore, the proportional buck module adopts a Buck topology circuit, with an input filter capacitor of 100μF and a Zener diode connected in parallel at the output.

[0018] In a second aspect, this application provides an intelligent monitoring light structure, comprising:

[0019] Housing with built-in PCB mounting slot;

[0020] An intelligent monitoring circuit is disposed in the PCB mounting slot, and the intelligent monitoring circuit is as described in the first aspect of this application.

[0021] Unlike existing technologies, this invention provides an intelligent monitoring circuit and intelligent monitoring lamp structure, belonging to the field of high-voltage pulse control technology, and is particularly suitable for scenarios requiring high-precision high-voltage control, such as mosquito killer lamps. The circuit includes: a power supply module, a proportional step-down module, a pulse sustaining module, a high-voltage ripple detection module, and a communication control module. By real-time detection of the ripple voltage of the secondary winding of the step-up transformer, when the ripple exceeds a preset standard value, the communication control module forcibly pulls down the gate voltage of the MOSFET to shut off the high-voltage pulse signal output, achieving closed-loop control. This solution solves the problems of poor ripple suppression and lag in dynamic response of traditional circuits, improving the stability and safety of high-voltage pulses, and is suitable for precise control of high-voltage electric shock devices such as intelligent mosquito killer lamps.

[0022] The above description of the utility model is merely an overview of the technical solution of this utility model. In order to enable those skilled in the art to better understand the technical solution of this utility model and to implement it based on the description and drawings, and to make the above-mentioned objectives and other objectives, features and advantages of this utility model easier to understand, the following description is provided in conjunction with the specific embodiments and drawings of this utility model. Attached Figure Description

[0023] The accompanying drawings are only used to illustrate the principles, implementation methods, applications, features, and effects of the present invention and other related contents, and should not be considered as limitations on the present invention.

[0024] In the accompanying drawings of the instruction manual:

[0025] Figure 1 This is a schematic diagram of the intelligent monitoring circuit described in a specific implementation.

[0026] Figure 2 This is a circuit diagram of the communication control module described in the specific implementation method;

[0027] Figure 3 A circuit diagram of the power module described in the specific implementation embodiment;

[0028] Figure 4 The circuit diagram of the proportional buck module described in the specific implementation embodiment;

[0029] Figure 5 The circuit diagram of the high-voltage ripple detection module described in the specific implementation method is shown below.

[0030] Figure 6 The circuit diagram of the pulse sustaining module described in the specific implementation embodiment;

[0031] Figure 7 A circuit diagram of the communication module described in the specific implementation embodiment;

[0032] Figure 8 The circuit diagram of the external photoresistor simulation module described in the specific implementation method is shown below.

[0033] Figure 9 The circuit diagram is shown for the external charging detection simulation module described in the specific implementation.

[0034] The reference numerals used in the above figures are explained as follows:

[0035] 1. Communication control module;

[0036] 2. Power supply module;

[0037] 3. Proportional step-down module;

[0038] 4. Pulse sustaining module;

[0039] 5. High-voltage ripple detection module;

[0040] 6. External photoresistor simulation module;

[0041] 7. External charging detection simulation module;

[0042] 8. Communication module. Detailed Implementation

[0043] To illustrate in detail the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this utility model, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this utility model and are therefore intended to limit the scope of protection of this utility model.

[0044] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this utility model. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this utility model, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0045] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit the invention.

[0046] In the description of this utility model, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " generally indicates that the preceding and following objects have an "or" logical relationship.

[0047] In this invention, terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy, or order between these entities or operations.

[0048] Without further limitations, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this invention is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a series of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.

[0049] Similar to the understanding in the Examination Guidelines, in this utility model, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments of this utility model, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.

[0050] In the description of the embodiments of this utility model, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the convenience of describing the specific embodiments of this utility model or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0051] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this utility model, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this utility model pertains, the specific meaning of the above terms in the embodiments of this utility model can be understood according to the specific circumstances.

[0052] like Figure 1-9 As shown, in a first aspect, the present invention provides an intelligent monitoring circuit, comprising:

[0053] Power module 2 is used to provide the initial input voltage, and its output terminal is electrically connected to the input terminal of the proportional buck module;

[0054] The proportional step-down module 3 includes an input filter capacitor and an output Zener diode, used to convert the initial input voltage into the system operating voltage;

[0055] The pulse sustaining module 4 includes a timer, a MOSFET, and a boost transformer. The output pin of the timer is connected to the gate of the MOSFET, and the drain of the MOSFET is connected to the primary winding of the boost transformer to generate a high-voltage pulse signal.

[0056] The high-voltage ripple detection module 5 is used to convert the ripple voltage of the secondary winding of the step-up transformer into a feedback signal of 0-3.3V and transmit the feedback signal to the communication control module.

[0057] The communication control module 1 is connected to the high voltage ripple detection module via an SPI interface. The communication control module is used to forcibly pull down the gate voltage of the MOS transistor to turn off the high voltage pulse output when the ripple voltage exceeds the preset amplitude of the standard value.

[0058] In this embodiment, the proportional buck converter uses a Buck topology circuit, with an input filter capacitor of 100μF and a Zener diode connected in parallel at the output. The input filter capacitor (100μF) and the output Zener diode (e.g., a 40V reverse withstand voltage model) work together to convert the initial input voltage (12-24V) into a stable 5V system operating voltage. The filter capacitor suppresses high-frequency noise, and the Zener diode prevents output voltage overshoot, ensuring the stability of the power supply to subsequent circuits.

[0059] In this embodiment, the timer is an NE555 timer, and the MOSFET is an IRF540N MOSFET. During operation, the NE555 timer generates a PWM signal to drive the IRF540N MOSFET to control the primary winding current of the step-up transformer. The step-up transformer uses a 1:50 turns ratio, and the primary winding wire diameter is 0.5mm. 2 The secondary winding uses 4000V polyester enameled wire to output high-voltage square wave pulses.

[0060] In this embodiment, the high-voltage ripple detection module includes a voltage divider network consisting of a first resistor R1 with a first resistance value and a second resistor R2 with a second resistance value, with a voltage division ratio of 1:11. This network attenuates the secondary winding ripple voltage (0-36V) to 0-3.3V and connects to an AD637 true RMS converter chip. Furthermore, the input voltage range of the AD637 true RMS converter chip is 0-5V, and the conversion accuracy is ±1%. The voltage division ratio matches the AD637 input range [0-5V], ensuring that the ripple voltage detection error is within 3%.

[0061] In this embodiment, the AIR780EP chip receives feedback signals via a 1MHz clock frequency, 16-bit binary SPI interface. When the ripple exceeds the nominal value by ±15%, the chip triggers a PID algorithm to dynamically adjust the PWM duty cycle of the NE555 timer. Specifically, the duty cycle can be set to decrease by 10% for every 5% exceeding the limit. If the limit is continuously exceeded, the gate voltage of the MOSFET is forcibly pulled down, with a turn-off response time ≤10ms, thereby effectively improving the stability and safety of the high-voltage output.

[0062] In some embodiments, the communication control module is also electrically connected to an external photoresistor simulation module and an external charging detection simulation module via an ADC channel.

[0063] Specifically, the AIR780EP communication control module chip has four built-in 12-bit ADC channels, which connect to an external photoresistor analog module or an external charging detection analog module via a voltage divider circuit. The photoresistor analog module uses a voltage divider network design to convert changes in the photoresistor resistance into a 0-3.3V analog voltage signal. When the light intensity changes, the photoresistor resistance changes, the ADC channels read the voltage value, and dynamically adjust the system's operating mode. The charging detection analog module attenuates the charging interface voltage (e.g., 5V) to the 0-3.3V range through a voltage divider resistor. The ADC channels monitor the voltage value in real time, distinguishing between the charger connection and the appliance connection status.

[0064] Thus, when the ADC sample value is below a threshold (e.g., 500mV), it is determined to be a low-light environment, triggering a high-voltage pulse enhancement (e.g., a mosquito killer lamp's night mode); if the ADC value exceeds a preset threshold (e.g., 3.0V), it is determined that a charger is connected, activating charging protection logic (e.g., limiting output current). In low-power mode, the ADC channel adopts an intermittent sampling strategy (e.g., waking up every 10 seconds), reducing power consumption through a GPIO wake-up mechanism while maintaining environmental awareness and charging status monitoring capabilities.

[0065] Through the above methods, the communication control module can achieve closed-loop coordination of environmental perception and charging safety management, thereby improving the stability and safety of high-voltage output.

[0066] In a second aspect, this application also provides an intelligent monitoring light structure, comprising:

[0067] Housing with built-in PCB mounting slot;

[0068] An intelligent monitoring circuit is disposed in the PCB mounting slot, and the intelligent monitoring circuit is as described in the first aspect of this application.

[0069] Finally, it should be noted that although the above embodiments have been described in the text and drawings of this utility model, this should not limit the scope of patent protection of this utility model. Any technical solutions resulting from equivalent structural or procedural substitutions or modifications made based on the essential concept of this utility model and utilizing the content described in the text and drawings of this utility model, as well as the direct or indirect application of the technical solutions of the above embodiments to other related technical fields, are all included within the scope of patent protection of this utility model.

Claims

1. An intelligent monitoring circuit, characterized by, The application relates to a high-voltage pulse generator, which comprises the following parts: a power module for providing an initial input voltage, the output end of which is electrically connected with the input end of a proportional voltage reduction module; the proportional voltage reduction module, which comprises an input filter capacitor and an output voltage stabilizing diode, is used for converting the initial input voltage into a system working voltage; a pulse maintaining module, which comprises a timer, a MOS tube and a step-up transformer, the output pin of the timer is connected with the gate of the MOS tube, the drain of the MOS tube is connected with the primary winding of the step-up transformer, and the pulse maintaining module is used for generating a high-voltage pulse signal; a high-voltage ripple detection module, which is used for converting the ripple voltage of the secondary winding of the step-up transformer into a 0-3.3V feedback signal and transmitting the feedback signal to a communication control module; the communication control module is connected with the high-voltage ripple detection module through an SPI interface, and the communication control module is used for forcibly pulling down the gate voltage of the MOS tube to turn off the high-voltage pulse output when the ripple voltage exceeds a standard value by a preset amplitude.

2. The intelligent monitoring circuit of claim 1, wherein, The communication control module is also electrically connected with an external photosensitive resistance analog module and an external charging detection analog module through an ADC channel.

3. The intelligent monitoring circuit of claim 1, wherein, The turns ratio of the step-up transformer is 1:

50.

4. The intelligent monitoring circuit of claim 1, wherein, The clock frequency of the SPI interface is 1MHz and the data format is 16-bit binary.

5. The intelligent monitoring circuit of claim 1, wherein, The high-voltage ripple detection module comprises a voltage division network composed of a first resistor R1 with a first resistance and a second resistor R2 with a second resistance, the voltage division ratio is 1:11, and the voltage division network is connected with an AD637 true RMS conversion chip.

6. The intelligent monitoring circuit of claim 5, wherein, The input voltage range of the AD637 true RMS conversion chip is 0-5V, and the conversion precision is + / -1%.

7. The intelligent monitoring circuit of claim 1, wherein, The communication control module is an AIR780EP chip.

8. The intelligent monitoring circuit of claim 1, wherein, The timer is an NE555 timer, and the communication control module is also used for dynamically adjusting the PWM duty cycle of the timer according to the feedback signal.

9. The intelligent monitoring circuit of claim 1, wherein, The proportional voltage reduction module adopts a Buck topology circuit, the capacitance of the input filter capacitor is 100muF, and the output end is connected with a voltage stabilizing diode in parallel.

10. A smart monitoring light structure, characterized by, The application relates to a high-voltage pulse generator, which comprises the following parts: a shell with a PCB mounting clamping groove; an intelligent monitoring circuit arranged in the PCB mounting clamping groove, wherein the intelligent monitoring circuit is the intelligent monitoring circuit according to any one of claims 1 to 9.

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