A circuit system for control and monitoring

Abstract

The utility model proposes a circuit system for control and monitoring, comprising: a switching circuit, a monitoring circuit, a control circuit, Bluetooth, a display screen and a main control chip, wherein the switching circuit, the monitoring circuit, the control circuit, the Bluetooth and the display screen are all electrically connected to the main control chip; a BAT is connected to the control circuit, the control circuit transmits power to the main control chip, the main control chip sends power information to the display screen after data processing so that the BAT power can be viewed on the display screen in real time, a shutdown command is sent to the main control chip via Bluetooth when the display screen is operated, or an operation on the display screen causes the switching circuit to send a switching mode output command to the main control chip, so that the main control chip outputs a low level.

Description

Technical Field

[0001] The utility model relates to the technical field of circuits, and in particular to a circuit system for control and monitoring. Background Art

[0002] With the continuous development of science and technology and artificial intelligence, the inspection personnel's demand for convenient and efficient single-phase grounding fault detection is becoming more and more urgent. The signal source based on the Internet background can allow the inspection personnel to remotely view the on-site data in real time, and guide the front-end personnel to carry out their work in real time based on the data, thereby improving the flexibility and efficiency of the work. However, the existing signal source device only has the function of local output of the signal source, and cannot realize the real-time viewing and control function of the background, which cannot meet the current needs.

[0003] In view of this, it is necessary to provide a new circuit system for control and monitoring to overcome the above defects. Utility Model Content

[0004] The utility model aims to provide a circuit system for control and monitoring. After the main control chip processes the data, it sends the power information to the display screen so that the BAT power information can be viewed in real time on the display screen. The display screen can also send relevant instructions to the main control chip via Bluetooth.

[0005] In order to achieve the above-mentioned object, the utility model provides a circuit system for control and monitoring, comprising: a switching circuit, a monitoring circuit, a control circuit, Bluetooth, a display screen and a main control chip, wherein the switching circuit, the monitoring circuit, the control circuit, the Bluetooth and the display screen are all electrically connected to the main control chip;

[0006] BAT is connected to the control circuit, and the control circuit transmits power to the main control chip. The main control chip processes the data and sends the power information to the display screen so that the BAT power can be viewed in real time on the display screen. The display screen is operated to send a shutdown command to the main control chip via Bluetooth, or the display screen is operated to make the switching circuit send a switching mode output command to the main control chip, so that the main control chip outputs a low level.

[0007] Preferably, the control circuit includes a resistor R9, a resistor R16, a resistor R17, a capacitor C7, a voltage stabilizing component D7, a diode D4, a relay K1, a voltage stabilizing component D6, a capacitor C5, a polarized capacitor C6, a resistor R3, a photoelectric isolator U1, a resistor R1, a transistor Q2, a resistor R18, a resistor R13, a resistor R100, a resistor R20, a photoelectric isolator U7, a resistor R101, a resistor R23, an operational amplifier U5A, a resistor R12, a thyristor U6, a capacitor C8, a resistor R14, a resistor R15, a resistor R19, a capacitor C10, and a capacitor C11;

[0008] The resistor R9 is electrically connected to BAT, the resistor R9 is electrically connected to the resistor R16, the cathode of the diode D4, the coil of the relay K1 and the first contact of the relay K1, the resistor R16 is electrically connected to the resistor R17, the capacitor C7 and the first end of the voltage stabilizing component D7, the second end of the voltage stabilizing component D7 is electrically connected to the capacitor C7 and the resistor R17 and is grounded, the second end of the voltage stabilizing component D7 is also electrically connected to the PC1 pin of the main control chip, the anode of the diode D4 is electrically connected to the coil of the relay K1 and the collector of the transistor Q2, the emitter of the transistor Q2 is grounded, and the base of the transistor Q2 is electrically connected to the resistor R18,

[0009] The first end of the voltage stabilizing component D6 is electrically connected to the second contact of the relay K1, the capacitor C5, the positive electrode of the polarized capacitor C6 and the resistor R13, the second end of the voltage stabilizing component D6 is electrically connected to the capacitor C5 and the negative electrode of the polarized capacitor C6 and is grounded, the first end of the resistor R20 is connected to the external power supply VCC, the second end of the resistor R20 is electrically connected to the first end of the light-emitting end of the photoelectric isolator U7, and the second end of the light-emitting end of the photoelectric isolator U7 is electrically connected to the PA8 pin of the main control chip,

[0010] The first end of the light receiving end of the photoelectric isolator U7 is electrically connected to the resistor R100 and the resistor R101, the second end of the light receiving end of the photoelectric isolator U7 is electrically connected to the resistor R23 and grounded, the resistor R23 is electrically connected to the resistor R100, the resistor R18, the resistor R13 and the output end of the operational amplifier U5A, the positive electrode of the operational amplifier U5A is connected to the external power supply VCC3.3V, the negative electrode of the operational amplifier U5A is grounded, the non-inverting input end of the operational amplifier U5A is electrically connected to the resistor R101, the resistor R19, the capacitor C10 and the capacitor C11, the resistor R18, the capacitor C10 and the capacitor C11 are grounded,

[0011] The positive electrode of the polarized capacitor C6 is also electrically connected to the resistor R3, the resistor R3 is electrically connected to the first end of the light-emitting end of the photoelectric isolator U1, the second end of the light-emitting end of the photoelectric isolator U1 is grounded, the first end of the light-receiving end of the photoelectric isolator U1 is electrically connected to the resistor R1 and the PA12 pin of the main control chip, the resistor R1 is connected to the external power supply VCC3.3V, the second end of the photoelectric isolator U1 is grounded, the resistor R12 and the resistor R14 are both electrically connected to the resistor R3, the reverse input end of the operational amplifier U5A is electrically connected to the resistor R12, the capacitor C8, the cathode and the control electrode of the thyristor U6, the anode of the thyristor U6 is electrically connected to the capacitor C8, the resistor R14 is electrically connected to the resistor R15, and the resistor R15 is electrically connected to the resistor R19.

[0012] Preferably, the switching circuit includes a resistor R6, a photoelectric isolator switch U2, a resistor R2, a resistor R4, a resistor R5, a transistor Q4, a diode D3, a diode D1 and a transistor Q5, a first end of the light-emitting end of the photoelectric isolator U2 is connected to an external power supply VDD, a first end of the resistor R6 is electrically connected to a second end of the light-emitting end of the photoelectric isolator U2, and a second end of the resistor R6 is electrically connected to the resistor R2 and a PB8 pin of a main control chip.

[0013] The first end of the light receiving end of the photoelectric isolator U2 is connected to the external power supply VCC, the second end of the light receiving end of the photoelectric isolator U2 is electrically connected to the resistor R4 and the resistor R5, the resistor R4 is grounded, the resistor R5 is electrically connected to the anode of the diode D3, the cathode of the diode D3 is electrically connected to the anode of the diode D1, the cathode of the diode D1 is electrically connected to the base of the transistor Q5, the collector of the transistor Q5 is electrically connected to the rectifier circuit, and the emitter of the transistor Q5 is grounded.

[0014] Preferably, the monitoring circuit includes an AC current sampling unit, a DC current sampling unit, a DC voltage sampling unit and an AC voltage sampling unit; the DC voltage sampling unit includes a voltage stabilizing component D40, a resistor R201, a resistor R27, a capacitor C201, an operational amplifier U8A, a resistor R25, a capacitor C19 and a capacitor C21, a first end of the voltage stabilizing component D40 is electrically connected to the resistor R201 and the first sampling resistor of the output circuit of the electrical equipment, a second end of the voltage stabilizing component D40 is grounded, the resistor R201 is electrically connected to the resistor R27, the resistor R27 is electrically connected to the capacitor C201 and the same-direction input end of the operational amplifier U8A, the capacitor C201 is grounded, the reverse input end of the operational amplifier U8A is electrically connected to the output end of the operational amplifier U8A and the resistor R25, the resistor R25 is electrically connected to the PA6 pin of the main control chip and the capacitor C19,

[0015] The AC voltage sampling unit includes a voltage stabilizing component D41, a capacitor C202, a resistor R38, a resistor R41, an operational amplifier U8B, a resistor R36 and a capacitor C29, a first end of the voltage stabilizing component D41 is electrically connected to the capacitor C202 and a second sampling resistor of an output circuit of the electrical device, the capacitor C202 is electrically connected to the resistor R38, the resistor R38 is electrically connected to the resistor R41 and the same-direction input end of the operational amplifier U8B, the resistor R41 is grounded, the reverse input end of the operational amplifier U8B is electrically connected to the output end of the operational amplifier U8B and the resistor R36, the resistor R36 is electrically connected to the PA7 pin of the main control chip and the capacitor C29, the capacitor C29 is grounded,

[0016] The DC current sampling unit includes a voltage stabilizing component D16, a resistor R58, a resistor R59, a capacitor C41, an operational amplifier U8C, a resistor R57 and a capacitor C40. The first end of the voltage stabilizing component D16 is electrically connected to the resistor R58 and the third sampling resistor of the output circuit of the electrical equipment. The resistor R58 is electrically connected to the resistor R59. The resistor R59 is electrically connected to the capacitor C41 and the same-direction input end of the operational amplifier U8C. The capacitor C41 is grounded. The reverse input end of the operational amplifier U8C is electrically connected to the output end of the operational amplifier U8C and the resistor R57. The resistor R57 is electrically connected to the PA5 pin of the main control chip and the capacitor C40. The capacitor C40 is grounded.

[0017] The AC current sampling unit includes a voltage stabilizing component D20, a capacitor C49, a resistor R72, a resistor R74, an operational amplifier U8D, a resistor R69 and a capacitor C53. The first end of the voltage stabilizing component D20 is electrically connected to the capacitor C49 and the fourth sampling resistor of the output circuit of the electrical equipment. The capacitor C49 is electrically connected to the resistor R72. The resistor R72 is electrically connected to the resistor R74 and the in-phase input end of the operational amplifier U8D. The inverting input end of the operational amplifier U8D is electrically connected to the output end of the operational amplifier U8D and the resistor R69. The resistor R69 is electrically connected to the PA4 pin of the main control chip and the capacitor C53. The capacitor C53 is grounded.

[0018] Compared with the prior art, the beneficial effect is that after the main control chip processes the data, it sends the power information to the display screen so that the BAT power information can be viewed in real time on the display screen, and the display screen can also send relevant instructions to the main control chip via Bluetooth.

[0019] Other features and advantages of the utility model will be stated in the following description, and some will be apparent from the description, or can be understood through the implementation of the utility model. The features and advantages of the utility model can be realized and obtained by the elements and combinations specifically pointed out in the attached application scope. These and other features of the utility model will become more clearly understood according to the following description and the attached claims, or can be understood through the implementation of the embodiments described in the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1This is a principle block diagram of a circuit system for control and monitoring provided by the utility model.

[0022] Figure 2 for Figure 1 A circuit diagram of a switching circuit for a control and monitoring circuit system is shown.

[0023] Figure 3 for Figure 1 The circuit diagram of the control circuit of the circuit system used for control and monitoring is shown.

[0024] Figure 4 for Figure 1 The circuit diagram of the monitoring circuit of the circuit system for control and monitoring is shown. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and beneficial technical effect of the utility model clearer, the utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the specific implementation methods described in this specification are only for explaining the utility model, and are not intended to limit the utility model.

[0026] It should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention 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, and therefore cannot be understood as a limitation on the present invention.

[0027] It should also be noted that, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix", "set" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be determined according to the specific circumstances.

[0028] In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first", "second", and "third" may explicitly or implicitly include one or more of the features. In addition, the meaning of "multiple" and "several" refers to two or more, unless otherwise clearly and specifically defined.

[0029] See also Figures 1 to 4 The utility model provides a circuit system for control and monitoring, including: a switching circuit, a monitoring circuit, a control circuit, Bluetooth, a display screen and a main control chip, wherein the switching circuit, the monitoring circuit, the control circuit, the Bluetooth and the display screen are all electrically connected to the main control chip;

[0030] BAT (power supply) is connected to the control circuit, and the control circuit transmits the power to the main control chip. The main control chip processes the data and sends the power information to the display screen so that the BAT power information can be viewed in real time on the display screen. The display screen is operated to send control instructions to the main control chip via Bluetooth, or the display screen is operated to make the switching circuit send a switching mode output instruction to the main control chip, so that the main control chip outputs a low level.

[0031] In a preferred embodiment, the control circuit includes a resistor R9, a resistor R16, a resistor R17, a capacitor C7, a voltage stabilizing component D7 (formed by two voltage stabilizing diodes connected in reverse series), a diode D4, a relay K1, a voltage stabilizing component D6 (formed by two voltage stabilizing diodes connected in reverse series), a capacitor C5, a polarized capacitor C6, a resistor R3, an optoelectronic isolator U1, a resistor R1, a transistor Q2, a resistor R18, a resistor R13, a resistor R100, a resistor R20, an optoelectronic isolator U7, a resistor R101, a resistor R23, an operational amplifier U5A, a resistor R12, a thyristor U6, a capacitor C8, a resistor R14, a resistor R15, a resistor R19, a capacitor C10, and a capacitor C11;

[0032] The resistor R9 is electrically connected to BAT (power supply), the resistor R9 is electrically connected to the resistor R16, the cathode of the diode D4, the coil of the relay K1 and the first contact of the relay K1, the resistor R16 is electrically connected to the resistor R17, the capacitor C7 and the first end of the voltage stabilizing component D7, the second end of the voltage stabilizing component D7 is electrically connected to the capacitor C7 and the resistor R17 and is grounded, the second end of the voltage stabilizing component D7 is also electrically connected to the PC1 pin of the main control chip, the anode of the diode D4 is electrically connected to the coil of the relay K1 and the collector of the transistor Q2, the emitter of the transistor Q2 is grounded, and the base of the transistor Q2 is electrically connected to the resistor R18,

[0033] The first end of the voltage stabilizing component D6 is electrically connected to the second contact of the relay K1, the capacitor C5, the positive electrode of the polarized capacitor C6 and the resistor R13, the second end of the voltage stabilizing component D6 is electrically connected to the capacitor C5 and the negative electrode of the polarized capacitor C6 and is grounded, the first end of the resistor R20 is connected to the external power supply VCC, the second end of the resistor R20 is electrically connected to the first end of the light-emitting end of the photoelectric isolator U7, and the second end of the light-emitting end of the photoelectric isolator U7 is electrically connected to the PA8 pin of the main control chip,

[0034] The first end of the light receiving end of the photoelectric isolator U7 is electrically connected to the resistor R100 and the resistor R101, the second end of the light receiving end of the photoelectric isolator U7 is electrically connected to the resistor R23 and grounded, the resistor R23 is electrically connected to the resistor R100, the resistor R18, the resistor R13 and the output end of the operational amplifier U5A, the positive electrode of the operational amplifier U5A is connected to the external power supply VCC3.3V, the negative electrode of the operational amplifier U5A is grounded, the non-inverting input end (+) of the operational amplifier U5A is electrically connected to the resistor R101, the resistor R19, the capacitor C10 and the capacitor C11, the resistor R18, the capacitor C10 and the capacitor C11 are grounded,

[0035] The positive electrode of the polarized capacitor C6 is also electrically connected to the resistor R3, the resistor R3 is electrically connected to the first end of the light-emitting end of the photoelectric isolator U1, the second end of the light-emitting end of the photoelectric isolator U1 is grounded, the first end of the light-receiving end of the photoelectric isolator U1 is electrically connected to the resistor R1 and the PA12 pin of the main control chip, the resistor R1 is connected to the external power supply VCC3.3V, the second end of the photoelectric isolator U1 is grounded, the resistor R12 and the resistor R14 are both electrically connected to the resistor R3, the reverse input end (-) of the operational amplifier U5A is electrically connected to the resistor R12, the capacitor C8, the cathode and the control electrode of the thyristor U6, the anode of the thyristor U6 is electrically connected to the capacitor C8, the resistor R14 is electrically connected to the resistor R15, and the resistor R15 is electrically connected to the resistor R19.

[0036] In this way, BAT is divided by resistors R16 and R17, and the sampled power supply power UBAT of BAT is transmitted to the main control chip. After the main control chip is in the power-on state (POWER_STA), the power information can be viewed on the display screen of the background system. The display screen of the background system sends an output type switching instruction to the main control chip, so that the main control chip outputs a low level MCU_ZLQH through the switching circuit, and then the output end of the operational amplifier U5A outputs a low level PW_OFF, which will cause the collector of the transistor to present a floating voltage ON, disconnecting the first contact and the second contact of the relay K1, thereby supplying power to BAT.

[0037] In a preferred embodiment, the switching circuit includes a resistor R6, a photoelectric isolator switch U2, a resistor R2, a resistor R4, a resistor R5, a transistor Q4, a diode D3, a diode D1 and a transistor Q5, a first end of the light-emitting end of the photoelectric isolator U2 is connected to an external power supply VDD, a first end of the resistor R6 is electrically connected to a second end of the light-emitting end of the photoelectric isolator U2, and a second end of the resistor R6 is electrically connected to the resistor R2 and a PB8 pin of a main control chip.

[0038] The first end of the light receiving end of the photoelectric isolator U2 is connected to the external power supply VCC, the second end of the light receiving end of the photoelectric isolator U2 is electrically connected to the resistor R4 and the resistor R5, the resistor R4 is grounded, the resistor R5 is electrically connected to the anode of the diode D3, the cathode of the diode D3 is electrically connected to the anode of the diode D1, the cathode of the diode D1 is electrically connected to the base of the transistor Q5, the collector of the transistor Q5 is electrically connected to the rectifier circuit, and the emitter of the transistor Q5 is grounded. In this way, the switching circuit switches the AC to the DC (ZLQH) and outputs it to the rectifier circuit through the collector of the transistor Q5, so that the rectifier circuit works.

[0039] In a preferred embodiment, the monitoring circuit includes an AC current sampling unit, a DC current sampling unit, a DC voltage sampling unit and an AC voltage sampling unit; the DC voltage sampling unit includes a voltage stabilizing component D40 (composed of two voltage stabilizing diodes connected in reverse series), a resistor R201, a resistor R27, a capacitor C201, an operational amplifier U8A, a resistor R25, a capacitor C19 and a capacitor C21, a first end of the voltage stabilizing component D40 is electrically connected to the resistor R201 and the first sampling resistor of the output circuit of the electrical equipment, a second end of the voltage stabilizing component D40 is grounded, the resistor R201 is electrically connected to the resistor R27, the resistor R27 is electrically connected to the capacitor C201 and the same-direction input terminal (+) of the operational amplifier U8A, the capacitor C201 is grounded, the reverse input terminal (-) of the operational amplifier U8A is electrically connected to the output terminal of the operational amplifier U8A and the resistor R25, the resistor R25 is electrically connected to the PA6 pin of the main control chip and the capacitor C19,

[0040] The AC voltage sampling unit includes a voltage stabilizing component D41 (formed by two voltage stabilizing diodes connected in reverse series), a capacitor C202, a resistor R38, a resistor R41, an operational amplifier U8B, a resistor R36 and a capacitor C29. The first end of the voltage stabilizing component D41 is electrically connected to the capacitor C202 and the second sampling resistor of the output circuit of the electrical equipment. The capacitor C202 is electrically connected to the resistor R38. The resistor R38 is electrically connected to the resistor R41 and the same-direction input terminal (+) of the operational amplifier U8B. The resistor R41 is grounded. The reverse input terminal (-) of the operational amplifier U8B is electrically connected to the output terminal of the operational amplifier U8B and the resistor R36. The resistor R36 is electrically connected to the PA7 pin of the main control chip and the capacitor C29. The capacitor C29 is grounded.

[0041] The DC current sampling unit includes a voltage stabilizing component D16 (formed by two voltage stabilizing diodes connected in reverse series), a resistor R58, a resistor R59, a capacitor C41, an operational amplifier U8C, a resistor R57 and a capacitor C40. The first end of the voltage stabilizing component D16 is electrically connected to the resistor R58 and the third sampling resistor of the output circuit of the electrical equipment. The resistor R58 is electrically connected to the resistor R59. The resistor R59 is electrically connected to the capacitor C41 and the same-direction input terminal (+) of the operational amplifier U8C. The capacitor C41 is grounded. The reverse input terminal (-) of the operational amplifier U8C is electrically connected to the output terminal of the operational amplifier U8C and the resistor R57. The resistor R57 is electrically connected to the PA5 pin of the main control chip and the capacitor C40. The capacitor C40 is grounded.

[0042] The AC current sampling unit includes a voltage stabilizing component D20 (formed by two voltage stabilizing diodes connected in reverse series), a capacitor C49, a resistor R72, a resistor R74, an operational amplifier U8D, a resistor R69 and a capacitor C53. The first end of the voltage stabilizing component D20 is electrically connected to the capacitor C49 and the fourth sampling resistor of the output circuit of the electrical equipment. The capacitor C49 is electrically connected to the resistor R72. The resistor R72 is electrically connected to the resistor R74 and the in-phase input terminal (+) of the operational amplifier U8D. The inverting input terminal (-) of the operational amplifier U8D is electrically connected to the output terminal of the operational amplifier U8D and the resistor R69. The resistor R69 is electrically connected to the PA4 pin of the main control chip and the capacitor C53. The capacitor C53 is grounded.

[0043] The present invention is not limited to what is described in the specification and implementation modes, and therefore, additional advantages and modifications can be easily realized by those familiar with the art. Therefore, without departing from the spirit and scope of the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details, representative devices, and illustrative examples shown and described herein.

Claims

1. A circuit system for control and monitoring, characterized in that: include: A switching circuit, a monitoring circuit, a control circuit, Bluetooth, a display screen and a main control chip, wherein the switching circuit, the monitoring circuit, the control circuit, Bluetooth and the display screen are all electrically connected to the main control chip; BAT is connected to the control circuit, and the control circuit transmits power to the main control chip. The main control chip processes the data and sends the power information to the display screen so that the BAT power can be viewed in real time on the display screen. The display screen is operated to send a shutdown command to the main control chip via Bluetooth, or the display screen is operated to make the switching circuit send a switching mode output command to the main control chip, so that the main control chip outputs a low level.

2. The circuit system for control and monitoring according to claim 1, characterized in that: The control circuit includes a resistor R9, a resistor R16, a resistor R17, a capacitor C7, a voltage stabilizing component D7, a diode D4, a relay K1, a voltage stabilizing component D6, a capacitor C5, a polarized capacitor C6, a resistor R3, a photoelectric isolator U1, a resistor R1, a transistor Q2, a resistor R18, a resistor R13, a resistor R100, a resistor R20, a photoelectric isolator U7, a resistor R101, a resistor R23, an operational amplifier U5A, a resistor R12, a thyristor U6, a capacitor C8, a resistor R14, a resistor R15, a resistor R19, a capacitor C10 and a capacitor C11; The resistor R9 is electrically connected to BAT, the resistor R9 is electrically connected to the resistor R16, the cathode of the diode D4, the coil of the relay K1 and the first contact of the relay K1, the resistor R16 is electrically connected to the resistor R17, the capacitor C7 and the first end of the voltage stabilizing component D7, the second end of the voltage stabilizing component D7 is electrically connected to the capacitor C7 and the resistor R17 and is grounded, the second end of the voltage stabilizing component D7 is also electrically connected to the PC1 pin of the main control chip, the anode of the diode D4 is electrically connected to the coil of the relay K1 and the collector of the transistor Q2, the emitter of the transistor Q2 is grounded, and the base of the transistor Q2 is electrically connected to the resistor R18, The first end of the voltage stabilizing component D6 is electrically connected to the second contact of the relay K1, the capacitor C5, the positive electrode of the polarized capacitor C6 and the resistor R13, the second end of the voltage stabilizing component D6 is electrically connected to the capacitor C5 and the negative electrode of the polarized capacitor C6 and is grounded, the first end of the resistor R20 is connected to the external power supply VCC, the second end of the resistor R20 is electrically connected to the first end of the light-emitting end of the photoelectric isolator U7, and the second end of the light-emitting end of the photoelectric isolator U7 is electrically connected to the PA8 pin of the main control chip, The first end of the light receiving end of the photoelectric isolator U7 is electrically connected to the resistor R100 and the resistor R101, the second end of the light receiving end of the photoelectric isolator U7 is electrically connected to the resistor R23 and grounded, the resistor R23 is electrically connected to the resistor R100, the resistor R18, the resistor R13 and the output end of the operational amplifier U5A, the positive electrode of the operational amplifier U5A is connected to the external power supply VCC3.3V, the negative electrode of the operational amplifier U5A is grounded, the non-inverting input end of the operational amplifier U5A is electrically connected to the resistor R101, the resistor R19, the capacitor C10 and the capacitor C11, the resistor R18, the capacitor C10 and the capacitor C11 are grounded, The positive electrode of the polarized capacitor C6 is also electrically connected to the resistor R3, the resistor R3 is electrically connected to the first end of the light-emitting end of the photoelectric isolator U1, the second end of the light-emitting end of the photoelectric isolator U1 is grounded, the first end of the light-receiving end of the photoelectric isolator U1 is electrically connected to the resistor R1 and the PA12 pin of the main control chip, the resistor R1 is connected to the external power supply VCC3.3V, the second end of the photoelectric isolator U1 is grounded, the resistor R12 and the resistor R14 are both electrically connected to the resistor R3, the reverse input end of the operational amplifier U5A is electrically connected to the resistor R12, the capacitor C8, the cathode and the control electrode of the thyristor U6, the anode of the thyristor U6 is electrically connected to the capacitor C8, the resistor R14 is electrically connected to the resistor R15, and the resistor R15 is electrically connected to the resistor R19.

3. The circuit system for controlling and monitoring according to claim 1, characterized in that: The switching circuit includes a resistor R6, a photoelectric isolator U2, a resistor R2, a resistor R4, a resistor R5, a transistor Q4, a diode D3, a diode D1 and a transistor Q5. The first end of the light-emitting end of the photoelectric isolator U2 is connected to an external power supply VDD, the first end of the resistor R6 is electrically connected to the second end of the light-emitting end of the photoelectric isolator U2, and the second end of the resistor R6 is electrically connected to the resistor R2 and the PB8 pin of the main control chip. The first end of the light receiving end of the photoelectric isolator U2 is connected to the external power supply VCC, the second end of the light receiving end of the photoelectric isolator U2 is electrically connected to the resistor R4 and the resistor R5, the resistor R4 is grounded, the resistor R5 is electrically connected to the anode of the diode D3, the cathode of the diode D3 is electrically connected to the anode of the diode D1, the cathode of the diode D1 is electrically connected to the base of the transistor Q5, the collector of the transistor Q5 is electrically connected to the rectifier circuit, and the emitter of the transistor Q5 is grounded.

4. The circuit system for controlling and monitoring according to claim 1, characterized in that: The monitoring circuit includes an AC current sampling unit, a DC current sampling unit, a DC voltage sampling unit and an AC voltage sampling unit; the DC voltage sampling unit includes a voltage stabilizing component D40, a resistor R201, a resistor R27, a capacitor C201, an operational amplifier U8A, a resistor R25, a capacitor C19 and a capacitor C21, a first end of the voltage stabilizing component D40 is electrically connected to the resistor R201 and the first sampling resistor of the output circuit of the electrical equipment, a second end of the voltage stabilizing component D40 is grounded, the resistor R201 is electrically connected to the resistor R27, the resistor R27 is electrically connected to the capacitor C201 and the same-direction input end of the operational amplifier U8A, the capacitor C201 is grounded, the reverse input end of the operational amplifier U8A is electrically connected to the output end of the operational amplifier U8A and the resistor R25, the resistor R25 is electrically connected to the PA6 pin of the main control chip and the capacitor C19, The AC voltage sampling unit includes a voltage stabilizing component D41, a capacitor C202, a resistor R38, a resistor R41, an operational amplifier U8B, a resistor R36 and a capacitor C29, a first end of the voltage stabilizing component D41 is electrically connected to the capacitor C202 and a second sampling resistor of an output circuit of the electrical device, the capacitor C202 is electrically connected to the resistor R38, the resistor R38 is electrically connected to the resistor R41 and the same-direction input end of the operational amplifier U8B, the resistor R41 is grounded, the reverse input end of the operational amplifier U8B is electrically connected to the output end of the operational amplifier U8B and the resistor R36, the resistor R36 is electrically connected to the PA7 pin of the main control chip and the capacitor C29, the capacitor C29 is grounded, The DC current sampling unit includes a voltage stabilizing component D16, a resistor R58, a resistor R59, a capacitor C41, an operational amplifier U8C, a resistor R57 and a capacitor C40. The first end of the voltage stabilizing component D16 is electrically connected to the resistor R58 and the third sampling resistor of the output circuit of the electrical equipment. The resistor R58 is electrically connected to the resistor R59. The resistor R59 is electrically connected to the capacitor C41 and the same-direction input end of the operational amplifier U8C. The capacitor C41 is grounded. The reverse input end of the operational amplifier U8C is electrically connected to the output end of the operational amplifier U8C and the resistor R57. The resistor R57 is electrically connected to the PA5 pin of the main control chip and the capacitor C40. The capacitor C40 is grounded. The AC current sampling unit includes a voltage stabilizing component D20, a capacitor C49, a resistor R72, a resistor R74, an operational amplifier U8D, a resistor R69 and a capacitor C53. The first end of the voltage stabilizing component D20 is electrically connected to the capacitor C49 and the fourth sampling resistor of the output circuit of the electrical equipment. The capacitor C49 is electrically connected to the resistor R72. The resistor R72 is electrically connected to the resistor R74 and the in-phase input end of the operational amplifier U8D. The inverting input end of the operational amplifier U8D is electrically connected to the output end of the operational amplifier U8D and the resistor R69. The resistor R69 is electrically connected to the PA4 pin of the main control chip and the capacitor C53. The capacitor C53 is grounded.

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