Atmospheric electric field monitoring circuit

Abstract

The utility model discloses an atmospheric electric field monitoring circuit. A power supply circuit is used for supplying power to a first amplification circuit, a second amplification circuit, a motor square wave synchronous circuit, a detection filter circuit, a level offset circuit and a main controller; the first amplifying circuit is electrically connected with the second amplifying circuit; the first amplification circuit is used for amplifying the signal intensity of the atmospheric electric field; the second amplification circuit is used for amplifying the signal amplitude of the atmospheric electric field; the motor square wave synchronous circuit is used for carrying out square wave signal conversion processing on an input motor signal; the detection filter circuit is used for carrying out detection filter processing on the received motor square wave signal; the level shift circuit is used for taking the motor square wave signal input by the detection filter circuit as a switch, receiving an atmospheric electric field signal input by the second amplification circuit and performing level shift processing; and the main controller is used for processing the received atmospheric electric field signal subjected to level shift processing by the level shift circuit. According to the utility model, the stability and reliability of atmospheric electric field monitoring are improved.

Description

Technical Field

[0001] The utility model relates to an atmospheric electric field monitoring circuit, belonging to the technical field of atmospheric electric field measurement. Background Art

[0002] An atmospheric electric field meter is a device capable of measuring the atmospheric electric field and its variations. It utilizes the principle of induced charge generated by a conductor in an electric field to measure the electric field. When charge separation occurs in clouds, the ground-level electric field will undergo a corresponding change. The intensity of this change is related to the accumulation and distribution of charge in the cloud. Therefore, by measuring changes in the ground-level atmospheric electric field, changes in the electric field in high-altitude clouds can be inferred, enabling a certain degree of forecasting of the risk of lightning strikes.

[0003] To address the complex structure, poor operational stability, low reliability, and inaccurate measurement results of traditional atmospheric electric field instruments, the applicant has developed an atmospheric electric field measurement device comprising an outer shell, a base plate, a motor bracket, a drive motor, a stator, a rotor, a cover, and a main control circuit board. Based on the received drive motor signal, the device accurately determines the measurement time. Upon receiving the signal at the corresponding angle, the main control circuit board measures the electric field on the metal stator. A corresponding atmospheric electric field monitoring circuit has been developed to monitor the atmospheric electric field based on the motor signal. Utility Model Content

[0004] The utility model aims to provide an atmospheric electric field monitoring circuit to monitor the atmospheric electric field according to motor signals and improve the stability and reliability of atmospheric electric field monitoring.

[0005] The utility model solves the above technical problems with the following technical solutions: an atmospheric electric field monitoring circuit, comprising a power supply circuit, a first amplifying circuit, a second amplifying circuit, a motor square wave synchronization circuit, a detection and filtering circuit, a level shifting circuit and a main controller;

[0006] The first amplifier circuit, the second amplifier circuit, the motor square wave synchronization circuit, the detection filter circuit, the level shift circuit, and the main controller are all electrically connected to the power supply circuit, and the power supply circuit is used to supply power to the first amplifier circuit, the second amplifier circuit, the motor square wave synchronization circuit, the detection filter circuit, the level shift circuit, and the main controller;

[0007] The first amplifying circuit and the second amplifying circuit are electrically connected; the first amplifying circuit is used to amplify the signal strength of the atmospheric electric field; the second amplifying circuit is used to amplify the signal amplitude of the atmospheric electric field;

[0008] The motor square wave synchronization circuit is electrically connected to the detection filter circuit; the second amplifier circuit and the detection filter circuit are both electrically connected to the level shift circuit, and the level shift circuit is electrically connected to the main controller;

[0009] The motor square wave synchronization circuit is used to perform square wave signal conversion processing on the input motor signal; the detection and filtering circuit is used to perform detection and filtering processing on the received motor square wave signal;

[0010] The level shift circuit is used to use the motor square wave signal input by the detection and filtering circuit as a switch, receive the atmospheric electric field signal input by the second amplification circuit and perform level shift processing; the main controller is used to process the atmospheric electric field signal received by the level shift circuit after level shift processing.

[0011] As a preferred solution for the atmospheric electric field monitoring circuit, the power supply circuit is connected to an external power supply, and the power supply circuit is provided with a +12V power supply interface, a -12V power supply interface, a +5V power supply interface and a -5V power supply interface.

[0012] As a preferred solution of the atmospheric electric field monitoring circuit, the motor square wave synchronization circuit includes chip U5; the detection filter circuit includes chip U6;

[0013] Pins 10, 12, and 13 of chip U5 are connected to pins 12 and 13 of chip U6; pin 11 of chip U5 is connected to pins 5 and 6 of chip U6;

[0014] The motor square wave synchronization circuit also includes an operational amplifier U4A, an operational amplifier U4B, an operational amplifier U4C, and an operational amplifier U4D.

[0015] As a preferred solution of the atmospheric electric field monitoring circuit, the first amplifier circuit and the second amplifier circuit are connected via an interface VO-1, and the second amplifier circuit is provided with an interface VO-2; the interface VO-2 is connected to the first pin and the fourth pin of the chip U6;

[0016] The first amplifying circuit is provided with an operational amplifier U7; the second amplifying circuit is provided with an operational amplifier U8A, an operational amplifier U8B, an operational amplifier U8C, and an operational amplifier U8D.

[0017] As a preferred solution of the atmospheric electric field monitoring circuit, the second pin, the third pin, the ninth pin, and the tenth pin of the chip U6 are connected to the level shift circuit;

[0018] The level shift circuit includes an operational amplifier U10A, an operational amplifier U10B, an operational amplifier U10C, and an operational amplifier U10D;

[0019] The atmospheric electric field signal is increased from -1 to +1V to 0 to 5V through operational amplifier U10A, operational amplifier U10B, operational amplifier U10C, and operational amplifier U10D.

[0020] The beneficial effects of the utility model are as follows: a power supply circuit, a first amplifying circuit, a second amplifying circuit, a motor square wave synchronization circuit, a detection filter circuit, a level shift circuit and a main controller are provided; the first amplifying circuit, the second amplifying circuit, the motor square wave synchronization circuit, the detection filter circuit, the level shift circuit and the main controller are all electrically connected to the power supply circuit, and the power supply circuit is used to supply power to the first amplifying circuit, the second amplifying circuit, the motor square wave synchronization circuit, the detection filter circuit, the level shift circuit and the main controller; the first amplifying circuit and the second amplifying circuit are electrically connected; the first amplifying circuit is used to amplify the signal strength of the atmospheric electric field; the second amplifying circuit is used to amplify the signal strength of the atmospheric electric field The signal amplitude of the atmospheric electric field is amplified; the motor square wave synchronization circuit and the detection and filtering circuit are electrically connected; the second amplifier circuit and the detection and filtering circuit are both electrically connected to the level shift circuit, and the level shift circuit is electrically connected to the main controller; the motor square wave synchronization circuit is used to convert the input motor signal into a square wave signal; the detection and filtering circuit is used to perform detection and filtering on the received motor square wave signal; the level shift circuit is used to use the motor square wave signal input by the detection and filtering circuit as a switch to receive the atmospheric electric field signal input by the second amplifier circuit and perform level shift processing; the main controller is used to process the atmospheric electric field signal received by the level shift circuit. The utility model can process the motor signal and monitor the atmospheric electric field using the motor signal as a switch, while amplifying and filtering the electric field signal, thereby improving the stability and reliability of atmospheric electric field monitoring. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are merely exemplary, and those skilled in the art can, without inventive effort, derive other implementation drawings based on the provided drawings.

[0022] The structures, proportions, sizes, etc. illustrated in this specification are intended solely to complement the contents disclosed herein and to facilitate understanding and reading by persons skilled in the art. They are not intended to limit the conditions under which the present invention may be implemented and therefore have no substantive technical significance. Any structural modifications, changes in proportions, or adjustments in sizes, without affecting the efficacy and objectives of the present invention, shall remain within the scope of the technical contents disclosed herein.

[0023] Figure 1A schematic diagram of the overall framework of the atmospheric electric field monitoring circuit provided by an embodiment of the present utility model;

[0024] Figure 2 A schematic diagram of a power supply circuit in an atmospheric electric field monitoring circuit provided by an embodiment of the present utility model;

[0025] Figure 3 A schematic diagram of a motor square wave synchronization circuit and a detection filter circuit in an atmospheric electric field monitoring circuit provided by an embodiment of the present utility model;

[0026] Figure 4 A schematic diagram of a first amplifying circuit in an atmospheric electric field monitoring circuit provided by an embodiment of the present utility model;

[0027] Figure 5 A schematic diagram of a second amplifying circuit in an atmospheric electric field monitoring circuit provided by an embodiment of the present utility model;

[0028] Figure 6 This is a schematic diagram of a level shift circuit in an atmospheric electric field monitoring circuit provided by an embodiment of the present utility model.

[0029] In the figure, 001, power supply circuit; 002, first amplifier circuit; 003, second amplifier circuit; 004, motor square wave synchronization circuit; 005, detection filter circuit; 006, level shift circuit; 007, main controller. DETAILED DESCRIPTION

[0030] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the following detailed description of specific embodiments of the present invention is provided in conjunction with the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0032] See also Figure 1 , the embodiment of the utility model provides an atmospheric electric field monitoring circuit, including a power supply circuit 001, a first amplifying circuit 002, a second amplifying circuit 003, a motor square wave synchronization circuit 004, a detection filter circuit 005, a level shift circuit 006 and a main controller 007;

[0033] Wherein, the first amplifying circuit 002, the second amplifying circuit 003, the motor square wave synchronization circuit 004, the detection and filtering circuit 005, the level shift circuit 006, and the main controller 007 are all electrically connected to the power supply circuit 001, and the power supply circuit 001 is used to supply power to the first amplifying circuit 002, the second amplifying circuit 003, the motor square wave synchronization circuit 004, the detection and filtering circuit 005, the level shift circuit 006, and the main controller 007;

[0034] The first amplifying circuit 002 and the second amplifying circuit 003 are electrically connected; the first amplifying circuit 002 is used to amplify the signal strength of the atmospheric electric field; the second amplifying circuit 003 is used to amplify the signal amplitude of the atmospheric electric field;

[0035] The motor square wave synchronization circuit 004 is electrically connected to the detection filter circuit 005; the second amplifier circuit 003 and the detection filter circuit 005 are electrically connected to the level shift circuit 006, and the level shift circuit 006 is electrically connected to the main controller 007;

[0036] The motor square wave synchronization circuit 004 is used to convert the input motor signal into a square wave signal; the detection and filtering circuit 005 is used to perform detection and filtering on the received motor square wave signal;

[0037] Among them, the level shift circuit 006 is used to use the motor square wave signal input by the detection and filtering circuit 005 as a switch, receive the atmospheric electric field signal input by the second amplification circuit 003 and perform level shift processing; the main controller 007 is used to process the atmospheric electric field signal received by the level shift circuit 006 and subjected to level shift processing.

[0038] In this embodiment, the power supply circuit 001 is connected to an external power supply, and the power supply circuit 001 is provided with a +12V power supply interface, a -12V power supply interface, a +5V power supply interface, and a -5V power supply interface.

[0039] See also Figure 2 Power supply circuit 001 includes chips U1, U2, and U3. Chip U1 and its surrounding electronic components provide +12V and -12V power. Chip U2 and its surrounding electronic components provide +12V and +5V power. Chip U3 and its surrounding electronic components provide -12V and -5V power. (This briefing is too brief; a detailed explanation of the circuit's components would be helpful.)

[0040] In this embodiment, the motor square wave synchronization circuit 004 includes a chip U5; the detection filter circuit 005 includes a chip U6; the 10th pin, the 12th pin, and the 13th pin of the chip U5 are connected to the 12th pin and the 13th pin of the chip U6; the 11th pin of the chip U5 is connected to the 5th pin and the 6th pin of the chip U6; the motor square wave synchronization circuit 004 also includes an operational amplifier U4A, an operational amplifier U4B, an operational amplifier U4C, and an operational amplifier U4D.

[0041] See also Figure 3 The motor square wave synchronization circuit 004 uses operational amplifiers U4A, U4B, U4C, and U4D to amplify the motor signal. It then filters the motor's output signal and converts it into a square wave signal. (This briefing is too brief; a detailed explanation of the principle combined with the circuit's composition would be better.)

[0042] In this embodiment, the first amplifier circuit 002 and the second amplifier circuit 003 are connected via an interface VO-1, and the second amplifier circuit 003 is provided with an interface VO-2; the interface VO-2 is connected to the 1st pin and the 4th pin of the chip U6; the first amplifier circuit 002 is provided with an operational amplifier U7; the second amplifier circuit 003 is provided with an operational amplifier U8A, an operational amplifier U8B, an operational amplifier U8C, and an operational amplifier U8D.

[0043] See also Figure 4 and Figure 5 The first amplifier circuit 002 amplifies the atmospheric electric field signal strength through operational amplifier U7 and surrounding electronic components, providing a stable signal source for subsequent signal processing. The second amplifier circuit 003 amplifies the atmospheric electric field signal amplitude through operational amplifiers U8A, U8B, U8C, and U8D, increasing the recognizable range and improving measurement accuracy. (This briefing is too rough; a detailed explanation of the principles and circuit components would be better.)

[0044] In this embodiment, the 2nd, 3rd, 9th and 10th pins of the chip U6 are connected to the level shift circuit 006; the level shift circuit 006 is provided with an operational amplifier U10A, an operational amplifier U10B, an operational amplifier U10C and an operational amplifier U10D; the atmospheric electric field signal is increased from -1 to +1V to 0 to 5V through the operational amplifier U10A, the operational amplifier U10B, the operational amplifier U10C and the operational amplifier U10D.

[0045] See also Figure 6Level shift circuit 006 boosts the atmospheric electric field signal from -1 to +1V to 0 to 5V via operational amplifiers U10A, U10B, U10C, and U10D, and transmits it to main controller 007. Main controller 007 then processes it using an existing atmospheric electric field analysis algorithm to obtain the atmospheric electric field monitoring value. (This briefing is too brief; a detailed explanation of the principles behind the circuit's components would be helpful.)

[0046] In summary, the present invention is provided with a power supply circuit 001, a first amplifier circuit 002, a second amplifier circuit 003, a motor square wave synchronization circuit 004, a detection filter circuit 005, a level shift circuit 006 and a main controller 007; the first amplifier circuit 002, the second amplifier circuit 003, the motor square wave synchronization circuit 004, the detection filter circuit 005, the level shift circuit 006 and the main controller 007 are all electrically connected to the power supply circuit 001, and the power supply circuit 001 is used to supply power to the first amplifier circuit 002, the second amplifier circuit 003, the motor square wave synchronization circuit 004, the detection filter circuit 005, the level shift circuit 006 and the main controller 007; the first amplifier circuit 002 and the second amplifier circuit 003 are electrically connected; the first amplifier circuit 002 is used to amplify the signal strength of the atmospheric electric field Large; the second amplifier circuit 003 is used to amplify the signal amplitude of the atmospheric electric field; the motor square wave synchronization circuit 004 and the detection filter circuit 005 are electrically connected; the second amplifier circuit 003 and the detection filter circuit 005 are both electrically connected to the level shift circuit 006, and the level shift circuit 006 is electrically connected to the main controller 007; the motor square wave synchronization circuit 004 is used to perform square wave signal conversion processing on the input motor signal; the detection filter circuit 005 is used to perform detection and filtering processing on the received motor square wave signal; the level shift circuit 006 is used to use the motor square wave signal input by the detection filter circuit 005 as a switch, receive the atmospheric electric field signal input by the second amplifier circuit 003 and perform level shift processing; the main controller 007 is used to process the atmospheric electric field signal received by the level shift circuit 006. Power supply circuit 001 includes chips U1, U2, and U3. Chip U1 and surrounding electronic components provide +12V and -12V power; chip U2 and surrounding electronic components provide +12V and +5V power; and chip U3 and surrounding electronic components provide -12V and -5V power. Motor square wave synchronization circuit 004 amplifies motor signals through operational amplifiers U4A, U4B, U4C, and U4D, filtering the motor output signal and converting it into a square wave signal. First amplifier circuit 002 amplifies the atmospheric electric field signal strength through operational amplifier U7 and surrounding electronic components, providing a stable signal source for subsequent signal processing. Second amplifier circuit 003 amplifies the atmospheric electric field signal amplitude through operational amplifiers U8A, U8B, U8C, and U8D, increasing the recognizable range and improving measurement accuracy. The level shift circuit 006 increases the atmospheric electric field signal from -1 to +1V to 0 to 5V through operational amplifiers U10A, U10B, U10C, and U10D, and transmits it to the main controller 007. The main controller 007 then processes it using the existing atmospheric electric field analysis algorithm to obtain the atmospheric electric field monitoring value.The utility model can process motor signals and use the motor signals as switches to monitor the atmospheric electric field, while amplifying and filtering the electric field signals, thereby improving the stability and reliability of atmospheric electric field monitoring.

[0047] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0048] The above-described embodiments merely represent several implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. An atmospheric electric field monitoring circuit, characterized in that: It comprises a power supply circuit (001), a first amplifying circuit (002), a second amplifying circuit (003), a motor square wave synchronization circuit (004), a detection filter circuit (005), a level shift circuit (006) and a main controller (007); The first amplifying circuit (002), the second amplifying circuit (003), the motor square wave synchronization circuit (004), the detection filter circuit (005), the level shift circuit (006), and the main controller (007) are all electrically connected to the power supply circuit (001), and the power supply circuit (001) is used to supply power to the first amplifying circuit (002), the second amplifying circuit (003), the motor square wave synchronization circuit (004), the detection filter circuit (005), the level shift circuit (006), and the main controller (007); The first amplifying circuit (002) and the second amplifying circuit (003) are electrically connected; the first amplifying circuit (002) is used to amplify the signal strength of the atmospheric electric field; the second amplifying circuit (003) is used to amplify the signal amplitude of the atmospheric electric field; The motor square wave synchronization circuit (004) and the detection filter circuit (005) are electrically connected; the second amplifier circuit (003) and the detection filter circuit (005) are both electrically connected to the level shift circuit (006), and the level shift circuit (006) is electrically connected to the main controller (007); The motor square wave synchronization circuit (004) is used to perform square wave signal conversion processing on the input motor signal; the detection and filtering circuit (005) is used to perform detection and filtering processing on the received motor square wave signal; The level shift circuit (006) is used to use the motor square wave signal input by the detection filter circuit (005) as a switch, receive the atmospheric electric field signal input by the second amplification circuit (003) and perform level shift processing; the main controller (007) is used to process the atmospheric electric field signal received by the level shift circuit (006) after level shift processing.

2. The atmospheric electric field monitoring circuit according to claim 1, characterized in that: The power supply circuit (001) is connected to an external power supply, and the power supply circuit (001) is provided with a +12V power supply interface, a -12V power supply interface, a +5V power supply interface, and a -5V power supply interface.

3. The atmospheric electric field monitoring circuit according to claim 1, characterized in that: The motor square wave synchronization circuit (004) includes a chip U5; the detection filter circuit (005) includes a chip U6; Pins 10, 12, and 13 of chip U5 are connected to pins 12 and 13 of chip U6; pin 11 of chip U5 is connected to pins 5 and 6 of chip U6; The motor square wave synchronization circuit (004) further includes an operational amplifier U4A, an operational amplifier U4B, an operational amplifier U4C, and an operational amplifier U4D.

4. The atmospheric electric field monitoring circuit according to claim 3, characterized in that: The first amplifier circuit (002) and the second amplifier circuit (003) are connected via an interface VO-1, and the second amplifier circuit (003) is provided with an interface VO-2; the interface VO-2 is connected to the first pin and the fourth pin of the chip U6; The first amplifying circuit (002) is provided with an operational amplifier U7; the second amplifying circuit (003) is provided with an operational amplifier U8A, an operational amplifier U8B, an operational amplifier U8C, and an operational amplifier U8D.

5. The atmospheric electric field monitoring circuit according to claim 4, characterized in that: The second pin, the third pin, the ninth pin and the tenth pin of the chip U6 are connected to the level shift circuit (006); The level shift circuit (006) is provided with an operational amplifier U10A, an operational amplifier U10B, an operational amplifier U10C, and an operational amplifier U10D; The atmospheric electric field signal is increased from -1 to +1V to 0 to 5V through operational amplifier U10A, operational amplifier U10B, operational amplifier U10C, and operational amplifier U10D.

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