Energy-saving circuit based on digital intelligent control

Abstract

The utility model relates to the technical field of circuit control, in particular to an energy-saving circuit based on digital intelligent control, which comprises a power supply circuit, a sensing circuit, a digital intelligent integrated circuit, a light-operated circuit and a load circuit, wherein the input end of the power supply circuit is provided with 220V alternating current, the output end of the power supply circuit comprises a rectifying circuit and a voltage stabilizing circuit, human body movement and ambient light change can be intelligently detected through a digital intelligent integrated circuit and the circuit, and the working state of the load circuit is adjusted according to the information, so that intelligent energy-saving control is realized. Therefore, unnecessary energy waste can be reduced, the energy utilization efficiency can be improved, the design of the light-operated circuit enables the circuit to automatically adjust the working state of the load circuit according to the intensity change of ambient light, so that the circuit can adapt to working environments under different illumination conditions, and the adaptability and the practicability of the circuit are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit control, and specifically relates to an energy-saving circuit based on digital intelligent control. Background Art

[0002] In the existing energy-saving technologies, infrared human body induction switches are widely used in places such as homes and public places to achieve automatic control and energy-saving effects. Such switches mainly consist of a power supply circuit, a sensing circuit, a light control circuit, and a control circuit. Among them, the sensing circuit is connected to the light control circuit, and the light control circuit is then connected to the control circuit. The power supply circuit usually uses the mains power supply, which is stepped down by an RC step-down circuit and then rectified and output to provide the electrical energy required for the operation of the entire circuit. It should be noted that this switch design usually adopts the method of single live wire input and single live wire output.

[0003] Although this kind of human body induction switch has a good control effect on incandescent lamps, there are obvious problems when facing different types of lighting devices such as energy-saving lamps and fluorescent lamps. Due to the characteristics of the RC step-down circuit, when trying to control an energy-saving lamp or a fluorescent lamp, the switch may flicker and cannot be completely turned off. This not only affects the user experience but may also cause damage to the lamp itself.

[0004] In addition, the power consumption problem of the existing infrared human body induction switch in the standby state also needs to be solved urgently. Due to limitations in circuit design and component selection, the standby power consumption is relatively large, reaching about 13,500 microamperes. This means that even though the switch appears to be turned off on the surface, it is actually still consuming electrical energy, and the amount of electricity consumed is not small. This not only goes against the original intention of energy conservation but also increases the long-term use cost. Content of the Utility Model

[0005] (1) Technical Problems to be Solved

[0006] In view of the deficiencies of the existing technology, the utility model provides an energy-saving circuit based on digital intelligent control.

[0007] (2) Technical Solutions

[0008] To achieve the above object, the utility model provides the following technical solution: An energy-saving circuit based on digital intelligent control of the utility model includes a power supply circuit, a sensing circuit, a digital intelligent integrated circuit, a light control circuit, and a load circuit;

[0009] Among them, the input end of the power supply circuit is 220V alternating current, the output end of the power supply circuit includes a rectification circuit and a voltage stabilization circuit, the sensing circuit includes a digital intelligent pyroelectric infrared sensor and a human body detection sensitive element, which is used to detect the movement of the human body. The signal output by the sensing circuit is coupled to the digital intelligent integrated circuit through a very high impedance differential input circuit. The digital intelligent integrated circuit is used to convert the received signal into an ADC digital signal. The light control circuit adopts the internal circuit of a photosensitive resistor and is used to adjust the working state of the load circuit according to the ambient light. The load circuit is connected to the light control circuit and the digital intelligent integrated circuit through Q1, and the load circuit is used to control the change of the working state of the electrical components.

[0010] Preferably, the digital intelligent integrated circuit includes a first-stage operational amplifier, a second-stage operational amplifier and a comparator. The first-stage operational amplifier is located at the input end of the digital intelligent integrated circuit, the second-stage operational amplifier is located at the output end of the first-stage operational amplifier, and the comparator is located at the output end of the second-stage operational amplifier.

[0011] Further preferably, a digital threshold is selected in the digital intelligent integrated circuit. When the ADC digital signal output by the digital intelligent integrated circuit exceeds the selected digital threshold, a timed REL level signal is output.

[0012] Again preferably, the power supply circuit is compatible with any one of a four-wire human body induction switch and a mechanical manual double-control switch.

[0013] Preferably, a fuse overload protection is installed in the power supply circuit, the sensing circuit, the digital intelligent integrated circuit, the light control circuit and the load circuit.

[0014] Further preferably, Q1 adopts an AQ3401 integrated block.

[0015] Again preferably, a relay is configured at the output end of the comparator, and a pin level is set at the output end of the relay.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the present utility model provides an energy-saving circuit based on digital intelligent control, which has the following beneficial effects:

[0018] Intelligent and energy-saving:

[0019] Through the digital intelligent integrated circuit, the circuit can intelligently detect the movement of the human body and the change of the ambient light, and adjust the working state of the load circuit according to this information, so as to realize intelligent energy-saving control. This helps to reduce unnecessary energy waste and improve energy utilization efficiency.

[0020] High sensitivity and accuracy:

[0021] The sensing circuit uses a digital intelligent pyroelectric infrared sensor and a human body detection sensitive element, which has high sensitivity and accuracy, can accurately detect the movement of the human body, and avoid unnecessary energy consumption caused by false detection or missed detection.

[0022] Flexibility and compatibility:

[0023] The design of the power supply circuit enables it to be compatible with either a four-wire human body induction switch or a mechanical manual double-control switch, which increases the flexibility and compatibility of the circuit's use and facilitates users to choose according to different application scenarios and requirements.

[0024] Safety and reliability:

[0025] Fuse overload protection is installed in the power supply circuit, sensing circuit, digital intelligent integrated circuit, light control circuit, and load circuit, which can effectively prevent the circuit from being damaged due to overload or other abnormal conditions and improve the safety and reliability of the circuit.

[0026] Modularity and easy maintenance:

[0027] The modular design of the circuit makes each part relatively independent, facilitating maintenance and replacement. For example, when a certain part fails, it can be repaired or replaced individually without the need for large-scale modification of the entire circuit.

[0028] Strong adaptability:

[0029] The design of the light control circuit enables the circuit to automatically adjust the working state of the load circuit according to the change of ambient light intensity, which enables the circuit to adapt to the working environment under different lighting conditions and improves its adaptability and practicality.

[0030] In summary, the energy-saving circuit based on digital intelligent control provides users with a more efficient, convenient, and safe circuit solution through its characteristics such as intelligence, energy conservation, high sensitivity, flexibility, safety, modularity, and adaptability. Description of the Drawings

[0031] Figure 1 It is a schematic diagram of the overall system structure of the present utility model;

[0032] Figure 2 It is a schematic diagram of the overall circuit structure of the present utility model; Detailed Implementation Modes

[0033] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0034] Please refer to Figure 1-2 , an energy-saving circuit based on digital intelligent control of the present utility model, characterized in that it includes a power supply circuit, a sensing circuit, a digital intelligent integrated circuit, a light control circuit, and a load circuit;

[0035] Among them, the input end of the power supply circuit is 220V alternating current, the output end of the power supply circuit includes a rectifying circuit and a voltage stabilizing circuit, the sensing circuit includes a digital intelligent pyroelectric infrared sensor and a human body detection sensitive element for detecting the movement of the human body, the signal output by the sensing circuit is coupled to the digital intelligent integrated circuit through a very high impedance differential input circuit, the digital intelligent integrated circuit is used to convert the received signal into an ADC digital signal, the light control circuit adopts an internal circuit of a photosensitive resistor for adjusting the working state of the load circuit according to the ambient light, the load circuit is connected to the light control circuit and the digital intelligent integrated circuit through Q1, and the load circuit is used to control the change of the working state of the electrical components.

[0036] In a preferred solution of the above energy-saving circuit based on digital intelligent control:

[0037] Digital intelligent integrated circuit: This circuit is mainly composed of a first-stage operational amplifier, a second-stage operational amplifier, and a comparator. The first-stage operational amplifier is located at the input end and is responsible for receiving and initially amplifying the input signal. Then, the second-stage operational amplifier receives the output signal of the first-stage operational amplifier and performs further amplification processing. Finally, the comparator compares the output signal of the second-stage operational amplifier, and when the signal exceeds the preset digital threshold, it outputs a timed REL level signal.

[0038] Power supply circuit: This circuit has high compatibility and supports either a four-wire human body induction switch or a mechanical manual double-control switch. This provides users with more choices and flexibility in use.

[0039] Sensing circuit: Adopt a digital intelligent pyroelectric infrared sensor and a human body detection sensitive element for accurately detecting the movement of the human body.

[0040] Light control circuit: The light control circuit may adjust the working state of the circuit according to the intensity of the ambient light to achieve an energy-saving effect.

[0041] Load circuit: Responsible for connecting and controlling electrical equipment, and adjusting the operating state of the equipment according to the signals output by the digital intelligent integrated circuit.

[0042] Advantages:

[0043] Energy saving: By precisely controlling the on-off state of the load circuit, unnecessary energy consumption can be effectively reduced, achieving the purpose of energy saving.

[0044] Intelligent control: The introduction of the digital intelligent integrated circuit enables the circuit to automatically adjust its working state according to preset rules and conditions without manual intervention, improving the convenience and efficiency of use.

[0045] Strong compatibility: The compatibility design of the power supply circuit enables this energy-saving circuit to adapt to different application scenarios and user requirements.

[0046] High safety: The setting of fuse overload protection can effectively prevent the circuit from being damaged due to overload, improving the safety and stability of the circuit.

[0047] Flexibility: By adjusting the digital threshold, the working state of the circuit can be easily changed to adapt to different environments and requirements.

[0048] In addition, using the AQ3401 integrated circuit as Q1 may further improve the integration and performance of the circuit. The relay configured at the output end of the comparator and the pin levels at the output end of the relay can be conveniently connected and controlled with other devices or systems. At the same time, the duration of the REL level signal can be set by adjusting the level output by the relay, thereby controlling the working time of the load circuit and achieving the energy-saving effect.

[0049] This patent document describes an energy-saving circuit based on digital intelligent control, whose working principle involves multiple components such as a power supply circuit, a sensing circuit, a digital intelligent integrated circuit, a light control circuit, and a load circuit. The following is a summary of its working principle:

[0050] Power supply circuit:

[0051] The input end receives 220V AC power, which is converted into DC power through a rectification circuit, and the output voltage is ensured to be stable through a voltage stabilization circuit.

[0052] The power supply circuit has compatibility and supports either a four-wire human body induction switch or a mechanical manual double-control switch, thus increasing the flexibility of use.

[0053] Sensing circuit:

[0054] Adopts a digital intelligent pyroelectric infrared sensor and a human body detection sensitive element to accurately detect human movement.

[0055] When the infrared sensor in the sensing circuit does not detect the human infrared signal, the control signal output terminal is at a low level, Q1 is not turned on, and the load circuit does not work; when someone moves within the effective area of the switch infrared sensor, the sensor will receive the infrared signal emitted by the human body and convert it into a pulsed electrical signal.

[0056] The detected signal is coupled to the digital intelligent integrated circuit through a very high impedance differential input circuit, and this design helps to reduce signal interference and improve signal quality.

[0057] Digital intelligent integrated circuit:

[0058] This circuit is mainly composed of a first-stage operational amplifier, a second-stage operational amplifier, and a comparator.

[0059] The first-stage operational amplifier receives the signal output by the sensing circuit and performs preliminary amplification processing.

[0060] The second-stage operational amplifier further amplifies the output signal of the first-stage operational amplifier.

[0061] The comparator compares the amplified signal with a preset digital threshold. When the signal exceeds the threshold, it outputs a timed REL level signal.

[0062] Light control circuit:

[0063] Adopts a photoresistor internal circuit to adjust the working state of the load circuit according to the intensity change of the ambient light.

[0064] When the ambient light reaches or exceeds a certain threshold, the light control circuit will correspondingly adjust the load circuit to achieve an energy-saving effect.

[0065] Load circuit:

[0066] It is connected to the light control circuit and the digital intelligent integrated circuit through Q1 (using an AQ3401 integrated block).

[0067] According to the received signal (from the digital intelligent integrated circuit or the light control circuit), it controls the change of the working state of electrical components, such as switching, dimming, etc.

[0068] Fuse overload protection:

[0069] To ensure the safe and stable operation of the circuit, fuse overload protection is installed in the power supply circuit, sensing circuit, digital intelligent integrated circuit, light control circuit, and load circuit.

[0070] When the circuit has an overload or other abnormal conditions, the fuse will blow, thus cutting off the circuit to prevent equipment damage or safety accidents.

[0071] Relay and pin level:

[0072] A relay is configured at the output end of the comparator to control the on / off of the circuit according to the comparison result.

[0073] The output end of the relay is provided with a pin level, which is convenient for connecting and controlling external devices or systems.

[0074] In summary, through the collaborative work of each component, this energy-saving circuit based on digital intelligent control realizes the intelligent detection and response to human movement and environmental light, thus effectively controlling the working state of the load circuit and achieving the purpose of energy saving. At the same time, through the fuse overload protection and flexible switch compatibility design, the safety and flexibility of use of the circuit are ensured.

[0075] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An energy-saving circuit based on digital intelligent control, characterized in that: Including power supply circuit, sensor circuit, digital intelligent integrated circuit, light control circuit and load circuit; Among them, the input end of the power supply circuit is 220V AC, the output end of the power supply circuit includes a rectifier circuit and a voltage stabilizing circuit, the sensor circuit includes a digital intelligent pyroelectric infrared sensor and a human body detection sensitive element, which are used to detect the movement of the human body. The signal output by the sensor circuit is coupled to the digital intelligent integrated circuit through a very high impedance differential input circuit, and the digital intelligent integrated circuit is used to convert the received signal into an ADC digital signal. The light control circuit adopts an internal circuit of a photoresistor to adjust the working state of the load circuit according to the ambient light. The load circuit is connected to the light control circuit and the digital intelligent integrated circuit through Q1, and the load circuit is used to control the change of the working state of the electrical components.

2. According to claim 1, the energy-saving circuit based on digital intelligent control is characterized in that: The digital intelligent integrated circuit includes a primary operational amplifier, a secondary operational amplifier and a comparator. The primary operational amplifier is located at the input end of the digital intelligent integrated circuit, the secondary operational amplifier is located at the output end of the primary operational amplifier, and the comparator is located at the output end of the secondary operational amplifier.

3. The energy-saving circuit based on digital intelligent control according to claim 2 is characterized in that: A digital threshold is selected in the digital intelligent integrated circuit, and when the ADC digital signal output by the digital intelligent integrated circuit exceeds the selected digital threshold, a timed REL level signal is output.

4. The energy-saving circuit based on digital intelligent control according to claim 3 is characterized in that: The power supply circuit is compatible with any one of a four-wire human body induction switch and a mechanical manual double-control switch.

5. The energy-saving circuit based on digital intelligent control according to claim 4 is characterized in that: The power supply circuit, the sensor circuit, the digital intelligent integrated circuit, the light control circuit and the load circuit are equipped with fuse overload protection.

6. The energy-saving circuit based on digital intelligent control according to claim 5, characterized in that: The Q1 adopts AQ3401 integrated block.

7. The energy-saving circuit based on digital intelligent control according to claim 6, characterized in that: The output end of the comparator is configured with a relay, and the output end of the relay is set with a pin level.

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