CN210835667U

CN210835667U - Signal acquisition circuit of generator controller

Info

Publication number: CN210835667U
Application number: CN201922059137.5U
Authority: CN
Inventors: 但宇航; 黎江; 邓桂柱; 黄镜洪
Original assignee: Qingyuan Deyuan Energy Development Co ltd
Current assignee: Qingyuan Deyuan Energy Development Co ltd
Priority date: 2019-11-26
Filing date: 2019-11-26
Publication date: 2020-06-23
Anticipated expiration: 2029-11-26

Abstract

The utility model discloses a generator control ware's signal acquisition circuit, including microcontroller U9, Oil mass acquisition circuit, current acquisition circuit, battery voltage acquisition circuit, 12V voltage acquisition circuit, temperature acquisition circuit, microcontroller U9 is STM32F103C, Oil mass acquisition circuit with microcontroller U9's GetSigADC _ Oil foot is connected, current acquisition circuit with microcontroller U9's GetSigADC _ l foot is connected, battery voltage acquisition circuit with microcontroller U9's GetSigADC _52V foot is connected, 12V voltage acquisition circuit with microcontroller U9's GetADC _12V foot is connected, temperature acquisition circuit with microcontroller U9's GetSigDQ _ TEMPER foot is connected. The signal acquisition circuit realizes the real-time acquisition of data such as the oil quantity, the current, the temperature, the battery voltage and the like of the generator and provides real-time data for the intelligent management of the generator.

Description

Signal acquisition circuit of generator controller

Technical Field

The utility model relates to a generator control technical field especially relates to a signal acquisition circuit of generator controller.

Background

With the development of society, electric power has become a power source of the whole society and becomes an indispensable important factor in production and life. However, with the rapid development of economy in recent years, people have a great demand for electric energy, and during the peak period of electricity utilization, the contradiction between electricity supply and demand is prominent, and in severe cases, unexpected power interruption occurs, which brings unpredictable loss. When the power is cut off, the generator set is used for generating power, people are required to start the generator on site, the generator cannot be started in time due to the fact that the power failure time is not fixed, and certain economic loss can be caused due to the power failure phenomenon in the middle. In addition, the traditional generator management scheme cannot provide real-time record of generator data, cannot control the running condition of the generator, and cannot trigger the generator to be started according to conditions.

Therefore, it is necessary to develop a circuit for collecting data such as the amount of engine oil, current, temperature, and battery voltage of the generator, so as to provide real-time data for the intelligent management of the generator.

Disclosure of Invention

An object of the utility model is to provide a generator controller's signal acquisition circuit, this signal acquisition circuit have realized data such as real-time collection generator oil volume, electric current, temperature, battery voltage, provide real-time data for the intelligent management of generator.

The technical scheme is as follows:

the signal acquisition circuit of the generator controller comprises a microcontroller U9, an Oil mass acquisition circuit, a current acquisition circuit, a battery voltage acquisition circuit, a 12V voltage acquisition circuit and a temperature acquisition circuit, wherein the microcontroller U9 is STM32F103C, the Oil mass acquisition circuit is connected with a GetSigADC _ Oil pin of the microcontroller U9, the current acquisition circuit is connected with a GetSigADC _ l pin of the microcontroller U9, the battery voltage acquisition circuit is connected with a GetSigADC _52V pin of the microcontroller U9, the 12V voltage acquisition circuit is connected with a GetSigADC _12V pin of the microcontroller U9, and the temperature acquisition circuit is connected with a GetSigDQ _ TEMPER pin of the microcontroller U9.

The oil quantity acquisition circuit comprises a resistor R5, a diode D1, a FUSE FUSE1, an oil level sensor, a resistor R6, a capacitor C4, a dual operational amplifier U1, a resistor R2, a capacitor C2 and a resistor R4, wherein one ends of the resistor R5 and the diode D1 are connected with a 3.3V power supply, the other ends of the resistor R5 and the diode D1 are connected with one ends of the FUSE FUSE1 and the oil level sensor, and the other end of the oil level sensor is grounded; one end of the resistor R6 and one end of the capacitor C4 are connected with the INA positive input end of the dual operational amplifier U1, the other end of the resistor R6 is connected with the other end of the FUSE FUSE1, and the other end of the capacitor C4 is grounded; the OUT output end of the dual operational amplifier U1 is connected with a GetSigADC _ Oil pin of a microcontroller U9 and a capacitor C2 through a resistor R2, the other end of the capacitor C2 is grounded, and the INA negative input end of the dual operational amplifier U1 is connected with the resistor R4.

The model of the dual operational amplifier U1 is LM 358.

The current acquisition circuit comprises a FUSE7, an adjustable potentiometer RV1, a resistor R7, a resistor R8, a resistor R9, a capacitor C5, a resistor R1, a resistor R3 and a capacitor C1, wherein input current sequentially passes through the FUSE FUSE7, the adjustable potentiometer RV1, the resistor R7 and the resistor R8 and is connected to the INB positive input end of the dual operational amplifier U1, the negative electrode of the resistor R7 is grounded through the resistor R9, and the negative electrode of the resistor R8 is grounded through the capacitor C5; the OUTB output end of the double operational amplifier U1 is connected with a GetSigADC _ l pin of the microcontroller U9 and a capacitor C1 through a resistor R1, the other end of the capacitor C1 is grounded, one end of a resistor R3 is connected with the OUTB output end of the double operational amplifier U1, and the other end of the resistor R3 is connected with an INB negative input end of the double operational amplifier U1.

The battery voltage acquisition circuit comprises a dual operational amplifier U2, a FUSE FUSE2, a FUSE FUSE4, a resistor R15, a resistor R16, a resistor R18, a capacitor C9, a capacitor C10, a resistor R10, a resistor R12 and a capacitor C7, wherein the positive output of a battery is connected to the INA positive input end of the dual operational amplifier U2 sequentially through the resistor R15, the FUSE FUSE2 and the resistor R16, the negative electrode of the resistor R15 is grounded through the resistor R18 and the capacitor C9 respectively, the negative electrode of the resistor R16 is grounded through the capacitor C10, the OUT output end of the dual operational amplifier U2 is connected with the GetSigADC _52V pin and the capacitor C7 of the microcontroller U9 respectively through the resistor R10, the other end of the capacitor C7 is grounded, and the INA negative input end of the dual operational amplifier U1 is connected with the resistor R12.

The model of the dual operational amplifier U2 is LM 358.

The 12V voltage acquisition circuit comprises a FUSE FUSE3, a resistor R11, a resistor R13, a resistor R14, a resistor R17, a resistor R19, a capacitor C11, a capacitor C12 and a capacitor C8, a 12V power supply is connected to the INB positive input end of the dual operational amplifier U2 sequentially through the resistor R14, the FUSE FUSE3 and the resistor R17, the negative electrode of the resistor R14 is grounded through the resistor R19 and the capacitor C12 respectively, and the negative electrode of the resistor R17 is grounded through the capacitor C11; the OUTB output end of the double operational amplifier U2 is respectively connected with a GetSigADC _12V pin of the microcontroller U9 and a capacitor C8 through a resistor R11, the other end of the capacitor C8 is grounded, and the INB negative input end of the double operational amplifier U2 is connected with the resistor R13.

The temperature acquisition circuit includes temperature sensor U4, resistance R22, temperature sensor U4's 2 nd foot, 3 rd foot are connected respectively to resistance R22's both ends, temperature sensor U4's 1 st foot ground connection, 3.3V power is connected to temperature sensor U4's 3 rd foot, temperature sensor U4's 2 nd foot with microcontroller U9's GetSigDQ _ TEMPER foot is connected.

The advantages or principles of the invention are explained below:

1. the utility model provides a signal acquisition circuit of generator controller, including microcontroller U9, oil mass acquisition circuit, current acquisition circuit, battery voltage acquisition circuit, 12V voltage acquisition circuit, temperature acquisition circuit, be used for gathering the oil mass change data of generator, current change data, battery voltage change data, 12V voltage change data, the temperature change data respectively to with data transmission to microcontroller U9 through the ADC conversion, send data transmission for the platform and show; the signal acquisition circuit realizes the real-time acquisition of data such as the oil quantity, the current, the temperature, the battery voltage and the like of the generator and provides real-time data for the intelligent management of the generator.

2. The utility model discloses an oil mass acquisition circuit includes resistance R5, diode D1, FUSE FUSE1, oil level sensor, resistance R6, electric capacity C4, two operational amplifier U1, resistance R2, electric capacity C2, resistance R4, 3.3V power is connected to resistance R5, diode D1's one end, FUSE FUSE1, oil level sensor are connected to the other end, resistance R6 is connected the INA positive input end of being connected two operational amplifier U1 with electric capacity C4, constitute the positive input of oil mass collection; the resistor R2, the resistor R4 and the capacitor C2 form oil volume voltage following output; when the Oil quantity changes, the sensor converts the change of the voltage to the voltage follower, then the change of the voltage is input to a GetSigADC _ Oil pin of the microcontroller U9, and the microcontroller U9 transmits data to the platform for displaying through ADC conversion.

3. The utility model discloses a current acquisition circuit includes FUSE FUSE7, adjustable potentiometer RV1, resistance R7, resistance R8, resistance R9, electric capacity C5, resistance R1, resistance R3, electric capacity C1, adjustable potentiometer RV1 makes the current compensation adjustment, FUSE FUSE7, adjustable potentiometer RV1, resistance R7, resistance R8, resistance R9, electric capacity C5 constitute the current and gather the forward input, resistance R1, resistance R3, electric capacity C1 constitutes current and voltage and follows output; the principle is the same as oil collection.

4. The utility model discloses a battery voltage acquisition circuit includes two operational amplifier U2, FUSE FUSE2, FUSE FUSE4, resistance R15, resistance R16, resistance R18, electric capacity C9, electric capacity C10, resistance R10, resistance R12, electric capacity C7, FUSE FUSE2, FUSE FUSE4, resistance R15, resistance R16, resistance R18, electric capacity C9, electric capacity C10 constitute battery voltage acquisition forward input, resistance R10, resistance R12, electric capacity C7 constitute battery voltage and follow output; the principle is the same as oil collection.

5. The utility model discloses a 12V voltage acquisition circuit includes FUSE FUSE3, resistance R14, resistance R17, resistance R19, electric capacity C11, electric capacity C12, resistance R11, resistance R13, electric capacity C8, FUSE FUSE3, resistance R14, resistance R17, resistance R19, electric capacity C11, electric capacity C12 constitute 12V voltage acquisition forward input, resistance R11, resistance R13, electric capacity C8 constitute 12V voltage and follow the output; the principle is the same as oil collection.

6. The utility model discloses a temperature acquisition circuit includes temperature sensor U4, resistance R22, and microcontroller U9 is transfered data to the 2 nd foot that temperature sensor U4 sensed the temperature and passed through temperature sensor U4, and microcontroller U9 sends the temperature value to the platform and shows through the ADC conversion back.

Drawings

Fig. 1 is a schematic block diagram of a generator controller circuit according to an embodiment of the present invention.

FIG. 2 is the embodiment of the present invention, which is an MCU circuit and I²And C, a circuit schematic diagram.

Fig. 3 is a schematic diagram of a clock circuit of a generator controller according to an embodiment of the present invention.

Fig. 4 is a schematic diagram of a power circuit of a generator controller according to an embodiment of the present invention.

Fig. 5 is a schematic diagram of a buzzer circuit of a generator controller according to an embodiment of the present invention.

Fig. 6 is a schematic diagram of an output driving circuit of a generator controller according to an embodiment of the present invention.

Fig. 7 is a schematic diagram of an output control circuit of a generator controller according to an embodiment of the present invention.

Fig. 8 is a schematic diagram of a commercial power and power generation collecting circuit of a generator controller according to the present invention.

Fig. 9 is a schematic diagram of a signal acquisition circuit of a generator controller according to an embodiment of the present invention.

Fig. 10 is a schematic diagram of a temperature acquisition circuit of a signal acquisition circuit of a generator controller according to an embodiment of the present invention.

Fig. 11 is a schematic diagram of a 4G module and a SIM circuit of a generator controller according to an embodiment of the present invention.

Detailed Description

The following describes embodiments of the present invention in detail.

As shown in figures 1 to 10, a generator controller circuit comprises a power circuit, an MCU circuit, and an I²C circuit, output control circuit, output drive circuit, 4G module and SIM circuit, buzzer circuit, signal acquisition circuit, commercial power and electricity generation acquisition circuit, clock circuit, power supply circuit and MCU circuit, I circuit²C circuit, output control circuit, output drive circuit, 4G module and SIM circuit, bee calling organ circuit, signal acquisition circuit, commercial power and electricity generation acquisition circuit, clock circuit connection, the MCU circuit includes microcontroller U9, microcontroller U9 is STM32F103C, microcontroller U9 respectively with output drive circuit, 4G module and SIM circuit, bee calling organ circuit, signal acquisition circuit, commercial power and electricity generation acquisition circuit, clock circuit connection, I circuit²The C circuit comprises an internal integrated chip U3, the internal integrated chip U3 is AT24C16,

pins

5 and 6 of the internal integrated chip U3 are connected with network pins I2C1_ SDA _ Mother and I2C1_ SCL _ Mother of the microcontroller U9, and the output control circuit is connected with the generator through an output driving circuit.

The power supply circuit is an MCU circuit, I²The MCU circuit provides power for the C circuit, the output control circuit, the output driving circuit, the 4G module, the SIM circuit, the buzzer circuit, the signal acquisition circuit, the commercial power and power generation acquisition circuit and the clock circuit, and the MCU circuit performs corresponding operation or processing on information acquired by each I \ O port or converts the information into corresponding action instructions to output the corresponding action instructions to I \ O to drive peripheral equipment; i is²The C circuit performs read-write operation through I2C1_ SDA _ Mother and I2C1_ SCL _ Mother which are connected with the MUC; the buzzer circuit provides sound for the equipment; the clock circuit transmits clock signals, timing signals and alarm signals to the MCU to complete various complex timing services; the 4G module and the SIM circuit realize remote intelligent management control on the generator; the signal acquisition circuit realizes the real-time acquisition of data such as the oil quantity, the current, the temperature, the battery voltage and the like of the generator and provides real-time data for the intelligent management of the generator; the commercial power and power generation acquisition circuit can acquire power generation and supply signals of the generator or commercial power supply signals in real time and provide real-time information for intelligent management of the generator; the output control circuit and the output drive circuit realize the intelligent control of the starting of the generatorThe flameout circuit solves the problem that the power generation is difficult to be accurately operated manually; the generator controller circuit realizes remote intelligent starting and flameout of the base station generator, people do not need to arrive at the site, the running condition of the base station generator is controlled in time, real-time data monitoring is realized, intelligent management of the generator is realized, manpower is released, and the problem that manual operation power generation is difficult to achieve accurately is solved.

Wherein, as shown in fig. 2, the MCU circuit of the present invention further includes an external oscillator, a burning interface J10, a debugging and upgrading interface J9, a resistor R38, a resistor R39, a resistor R40, wherein the external oscillator includes an SM patch crystal oscillator Y2, a capacitor C35, a capacitor C36, two ends of the SM patch crystal oscillator Y2 are respectively connected to an OSC1 pin and an OSC0 pin of the microcontroller U9, one ends of the capacitor C35 and the capacitor C36 are respectively connected to an OSC1 pin and an OSC0 pin of the microcontroller U9, and the other ends of the capacitor C35 and the capacitor C36 are grounded; the 1 st pin and the 2 nd pin of the burning interface J10 are respectively connected with an SWDIO pin and an SWDCLK pin of the microcontroller U9, the 3 rd pin of the burning interface J10 is connected with a 3.3V power supply, and the 4 th pin of the burning interface J10 is grounded; the 1 st pin and the 2 nd pin of the debugging and upgrading interface J9 are respectively connected with a serial port UART _ TX and a UART _ RX of the microcontroller U9, and are respectively connected with a resistor R39 and a resistor R40, two ends of the resistor R38 are respectively connected with a BOOT1 pin of the microcontroller U9 and a BOOT0 pin of the debugging and upgrading interface J9, the 5 th pin of the debugging and upgrading interface J9 is connected with a 3.3V power supply, and the 4 th pin of the debugging and upgrading interface J9 is grounded. The microcontroller U9 is STM32F103C, and STM32F103C is an embedded MUC with high performance, low cost and low power consumption; the external oscillator is composed of an SM patch crystal oscillator Y2, a capacitor C35 and a capacitor C36, and the microcontroller U9 performs corresponding operation or processing on information acquired by each I \ O port or converts the information into corresponding action instructions to be output to I \ O to drive peripheral equipment.

The utility model I²The C circuit further comprises a capacitor C13, a resistor R20 and a resistor R21,

pins

1, 2, 3, 4 and 7 of the internal integrated chip U3 are grounded, a pin 8 of the internal integrated chip U3 is connected with a 3.3V power supply, the 3.3V power supply is grounded through a capacitor C13, and

pins

5 and 6 of the internal integrated chip U3 are connected with a 3.3V power supply through a resistor R20 and a resistor R21 respectively. The internal integrated chip U3 is connected via the I2C1_ SDA _ other and the I2C1_ SCL _ other of the microcontroller U9 for reading and writing operations.

As shown in fig. 3, the clock circuit of the present invention includes a clock chip U5, a crystal oscillator Y1, a capacitor C22, a capacitor C23, a battery BT1, a diode D2, a diode D3, a capacitor C24, a resistor R34, and a resistor R35, where the clock chip U5 is PCF8563, two ends of the crystal oscillator Y1 are respectively connected to an OSC1 pin and an OSC0 pin of the microcontroller U9, one ends of the capacitor C22 and the capacitor C23 are respectively connected to an OSC0 pin and an OSC1 pin of the microcontroller U9, and the other ends of the capacitor C22 and the capacitor C23 are grounded; the 8 th pin of the clock chip U5 is connected with the battery BT1, the 3.3V power supply and the ground wire through the diode D2, the diode D3 and the capacitor C24 respectively, the 5 th pin and the 6 th pin of the clock chip U5 are connected with the network pins I2C2_ SDA and I2C2_ SCL of the microcontroller U9 respectively, and are connected with the 3.3V power supply through the resistor R34 and the resistor R35 respectively. Clock chip U5 is PCF8563, PCF8563 is a low power consumption CMOS real time clock/calendar chip that provides a programmable clock output, an interrupt output and power down detector, all address and data passing I²The C bus interface is serially transferred. The PCF8563 has various alarm functions, timer functions, clock output functions and interrupt output functions to complete various complex timing services; the clock chip U5, the crystal oscillator Y1, the capacitor C22 and the capacitor C23 form an oscillator, and a reference frequency is generated to the PCF 8563; the battery BT1, the diode D2, the capacitor C24 and the 8 pins of the clock chip U5 are connected to form a battery power supply system, the diode D3, the capacitor C24, an external 3.3V power supply and the 8 pins of the clock chip U5 are connected to form an external power supply for supplying power, and the two power supply systems are isolated by the diode D2 and the diode D3; the 5 feet (SDA data) and 6 feet (SCL clock) of the clock chip U5 are pulled up to the power supply of 3.3V through a 4.7K resistor R34 and a resistor R35 and are connected to networks I2C2_ SDA and I2C2_ SCL of the microcontroller U9, and the clock chip U5 transmits clock signals, timing signals and alarm signals to the microcontroller U9.

As shown in FIG. 4, the power supply circuit of the present invention includes a regulated power supply module U6, a regulated power supply module U7, a regulated power supply module U8, a diode D4, a diode D5, a diode D6, a diode D7, a capacitor C25, a capacitor C26, a capacitor C27, a capacitor C29, a capacitor C30, a capacitor C33, a capacitor C34, a coil L1, and a coil L2, wherein the regulated power supply module U6 is LM2596HVS-5.0, the regulated power supply module U7 is LM2596HVS-3.3, the regulated power supply module U6 is connected to the power supply module U7The block U8 is AMS1117, the positive pole of the external DC12V power supply is connected with the input ends of the stabilized voltage power supply module U6 and the stabilized voltage power supply module U7 through a diode D4 and a diode D6 respectively, the output end of the stabilized voltage power supply module U6 is connected with the input end of the stabilized voltage power supply module U8, the output control circuit, the output driving circuit and the buzzer circuit through a coil L1, one end of a capacitor C25 is connected with the negative pole of the diode D4, the other end of the capacitor C25 is grounded, the dotted terminal of the coil L1 is connected with one end of a diode D5, the other end of the diode D5 is grounded, the non-dotted terminal of the coil L1 is connected with one end of a capacitor C26 and a capacitor C27, and the other ends; the output end of the voltage-stabilized power supply module U7 is connected with the 4G module and the SIM circuit through a coil L2, the dotted terminal of a coil L2 is connected with one end of a diode D7, the other end of the diode D7 is grounded, the non-dotted terminal of a coil L2 is connected with one ends of a capacitor C29 and a capacitor C30, and the other ends of the capacitor C29 and a capacitor C30 are grounded; the output end of the regulated power supply module U8 is connected with a capacitor C33, a capacitor C34, an MCU circuit and an I²The other ends of the C circuit, the signal acquisition circuit, the capacitor C33 and the capacitor C34 are grounded. One path of an external DC12V power supply is connected with a stabilized voltage supply module U6(LM2596HVS-5.0) through a diode D4 and a capacitor C25 to be stabilized into a DC5V power supply, and is filtered and connected with a FUSE5 output through a coil L1, a capacitor C26 and a capacitor C27 to provide power for a next-stage stabilized voltage supply module U8, an output circuit and a buzzer; the other path is connected to a 3.3V power supply with stabilized voltage of a stabilized voltage power supply module U7(LM2596HVS-3.3) through a diode D6, and is connected with the output of a FUSE6 through a coil L2, a capacitor C29 and a capacitor C30 in a filtering way to provide DC3.3V power supply for the 4G module and the SIM circuit; the stabilized voltage power supply module U8 stabilizes the voltage to DC3.3V power supply, which is filtered and output by a capacitor C33 and a capacitor C34 and is an MCU circuit and I²The C circuit, the signal acquisition circuit and the like provide power.

As shown in fig. 5, the utility model discloses a buzzer circuit includes buzzer LS1, resistance R60, resistance R61, triode Q4, and buzzer LS 1's one end is passed through resistance R60 and is connected the 5V power, and triode Q4's collecting electrode is connected to buzzer LS 1's the other end, and triode Q4's base passes through resistance R61 and connects microcontroller U9's BEE foot, triode Q4's projecting pole ground connection. When the microcontroller U9 sends a high level through a BEE pin, the triode Q4 is driven to be conducted through the resistor R61, a 5V power supply forms a loop through the resistor R60, the buzzer LS1 and the triode Q4, and the buzzer sends a sound when current flows through the buzzer; when the microcontroller U9 sends a low level through the BEE pin, the base voltage of the triode Q4 is low and cut off, and the buzzer LS1 has no current flowing and no sound; the microcontroller U9 continuously sends high and low levels and the buzzer continuously sounds.

As shown IN fig. 6 and 7, the output driving circuit of the present invention includes a driving chip U14, a resistor R53, a resistor R54, a resistor R55, a resistor R56, a resistor R2, a resistor R58, a resistor R59, a network cable Relay1-5, and a network cable Voltage OUT1-2, the output Control circuit includes a Relay and a terminal J11, the input terminals of the pins 1-7 of the driving chip U14 are respectively connected to the network pins Relay Control 9-5 and network pin Voltage IN 9-2 of the microcontroller U9, the input terminals of the pins 1-7 of the driving chip U9 are respectively connected to the power supply of DC5 through the resistor R9, the power supply of 3.3V, the pin 8 of the driving chip U9 is grounded, the pin 9 of the driving chip U9 is connected to the power supply of DC5, the output terminal of the coil 16-10 of the driving chip U9 is respectively connected to the network cable Relay OUT 2 through the network cable Relay OUT 2, the other end of the relay coil is connected with a DC5V power supply, the control contact 3-4 of the relay is connected with a terminal J11, and a terminal J11 is connected with the generator. The input ends of pins 1-7 of a driving chip U14 are respectively connected with a network pin Relay Control1-5 and a network pin Voltagen IN1-2 of a microcontroller U9, the other end of the driving chip U14 is connected with a 1K pull-up resistor R53-59 to a 3.3V power supply, when the Relay Control1 of the microcontroller U9 outputs a high level, namely the high level is input into the pin 1 of the driving chip U14, a Relay coil has current passing through, the Relay is attracted, and the

Control contacts

3 and 4 of the Relay are connected; when the Relay Control1 of the microcontroller U9 outputs a low level, namely, 1 pin of the driving chip U14 inputs a low level, and 16 pins (Relay1) of the driving chip U14 outputs a high level, no current passes through a Relay coil, the Relay is released, and the Control contacts 3 and 4 pins of the Relay are disconnected, so that external on-off Control is realized; the driving and output control circuit can realize the circuit for intelligently controlling the starting and flameout of the generator, and solves the problem that the manual operation power generation is difficult to be accurate.

Among them, ULN2003 is preferably used as the driver chip U14. ULN2003 is high in working voltage and large in working current, the sink current can reach 500mA, the voltage of 50V can be borne in the off state, and the output can run in parallel at high load current.

The relays comprise a first Relay RE1, a second Relay RE2, a third Relay RE3, a fourth Relay RE4 and a fifth Relay RE5, wherein the driving output end of 16-12 pins of a driving chip U14 is respectively connected with one end of a coil of the first Relay RE1, the second Relay RE2, the third Relay RE3, the fourth Relay RE4 and the fifth Relay RE5 through a network line Relay1-5, the other end of the coil of the first Relay RE1, the second Relay RE2, the third Relay RE3, the fourth Relay RE4 and the fifth Relay RE5 is respectively connected with a DC5, a DC V power supply, the control contact 3 of the first Relay RE 82RE 56, the 10-9 pins of a 4 pin connection terminal J11, the control contact 3 of the second Relay RE2, the 8-7 pins of a 4 pin connection terminal J11, the control contact 3 of the third Relay RE3, the 6-5 pins of the 4 pin connection terminal J11 and the contact 72 of the fourth Relay RE4, The 4 th to 3 rd pins of the 4 th pin connecting terminal J11, the control contact 3 of the fifth relay RE5 and the 2 nd to 1 st pin of the 4 th pin connecting terminal J11.

In yet another embodiment, the output control circuit further includes a diode D8, a diode D9, a diode D10, a diode D11, and a diode D12, and the network cable Relay1-5 is connected to the DC5V power source through a diode D8, a diode D9, a diode D10, a diode D11, and a diode D12, respectively.

In another embodiment, the output control circuit further includes a terminal J12, the relays further include a sixth relay RE6 and a seventh relay RE7, the driving output ends of the pins 11 to 10 of the driving chip U14 are respectively connected to one ends of coils of the sixth relay RE6 and the seventh relay RE7 through a network line Voltage OUT1-2, the other ends of the coils of the sixth relay RE6 and the seventh relay RE7 are respectively connected to a DC5V power supply, the control contacts 4 of the sixth relay RE6 and the seventh relay RE7 are connected to an input power supply, the control contacts 3 of the sixth relay RE6 and the seventh relay RE7 are respectively connected to

pins

1 and 3 of the terminal J12, and the pin 2 of the terminal J12 is grounded.

In another embodiment, the output control circuit further includes a capacitor C51 and a capacitor C52, one end of the capacitor C51 is connected to the control contact 3 of the sixth relay RE6, the other end of the capacitor C51 is grounded, one end of the capacitor C52 is connected to the control contact 3 of the seventh relay RE7, and the other end of the capacitor C52 is grounded.

In yet another embodiment, the output control circuit further includes a diode D13, a diode D14, and a network cable VoltageOUT1-2 connected to the DC5V power source through a diode D13 and a diode D14, respectively.

As shown in fig. 8, the utility model discloses a commercial power and electricity generation acquisition circuit includes two operational amplifier U11, commercial power acquisition circuit, electricity generation acquisition circuit, and commercial power acquisition circuit includes commercial power rectifier circuit, mains voltage follower circuit, and mains power passes through the INB positive input end of electric rectifier circuit connection two operational amplifier U11, and the OUTB output of two operational amplifier U11 passes through mains voltage follower circuit and connects microcontroller U9's network 220_ check foot; the power generation acquisition circuit comprises a power generation rectifying circuit and a power generation voltage following circuit, a power supply of a power generator is connected with an INA positive input end of a double operational amplifier U11 through the power generation rectifying circuit, an OUT output end of the double operational amplifier U11 is connected with a network 220_ A _ check pin of a microcontroller U9 through the power generation voltage following circuit, and a VCC end of the double operational amplifier U11 is connected with a 3.3V power supply. The mains supply voltage is rectified by a mains supply rectifying circuit after being sampled, and then the rectified signal is sent to an INB positive input end of a double operational amplifier U11, the double operational amplifier U11 and a mains supply voltage follower circuit transmit an input end signal to a microcontroller U9, and the microcontroller U9 performs operation processing on the signal to realize acquisition of a mains supply signal; the power generation acquisition circuit comprises a power generation rectifying circuit and a power generation voltage follower circuit, the power generation rectifying circuit is used for rectifying power supply voltage of the power generator after sampling, signals are sent to an INA positive input end of a double operational amplifier U11 after rectification, the double operational amplifier U11 and the power generation voltage follower circuit transmit input end signals to a microcontroller U9, and the microcontroller U9 is used for carrying out operation processing on the signals to realize acquisition of power generation and supply signals of the power generator; the commercial power and power generation acquisition circuit of the generator controller can acquire power generation and supply signals or commercial power supply signals of the generator in real time, and provides real-time information for intelligent management of the generator.

Wherein, the model of the dual operational amplifier U11 is LM358 preferably.

The commercial power and power generation acquisition circuit further comprises a capacitor C43, the VCC end of the double operational amplifier U11 is connected with the capacitors C43 and 3.3V power supply, and the other end of the capacitor C43 is grounded.

The utility power rectification circuit comprises a resistor R46, a resistor R48, a resistor R49, a resistor R50, a current transformer T1, a rectifier bridge U12, a capacitor C44, a capacitor C47 and a capacitor C48, wherein one end of a primary winding of the current transformer T1 is connected with a live wire of a utility power supply through a resistor R46, the other end of the primary winding of the current transformer T1 is connected with a zero line of the utility power supply, two ends of a secondary winding of the current transformer T1 are connected with two ends of a resistor R48, two ends of a capacitor C44 and 3 and 4 pins of an input end of a rectifier bridge U12, a positive output end of the rectifier bridge U12 is connected with one ends of a resistor R49, a resistor R50 and a capacitor C47, the other end of the resistor R49 is connected with one end of a capacitor C48 and an INB positive input end of a double operational amplifier U48, and the. The current limiting resistor R46 and the primary side of the current transformer T1 form a sampling of generated voltage, the current induced by the secondary side of the current transformer T1 generates 0-3.3V voltage at the resistor R48, the generated voltage is filtered by the capacitor C44, the rectifier bridge U12 is rectified, the resistor R49, the resistor R50, the capacitor C47 and the capacitor C48 form an INB positive input end of a double-operational amplifier U11, a high-voltage signal of commercial power is subjected to current limiting and voltage reduction by the resistor R46, the current transformer T1 is isolated, the resistor R48 performs sampling, the rectifier bridge U12 performs rectification, the voltage of the resistor R50 is adjusted, and the signal is sent to the positive input end of the amplifier to realize sampling rectification of commercial.

The mains supply voltage follower circuit comprises a resistor R43, a resistor R45 and a capacitor C42, two ends of the resistor R45 are connected with an INB negative input end and an OUTB output end of a double operational amplifier U11, the OUTB output end of the double operational amplifier U11 is respectively connected with the capacitor C42 and a network 220_ check pin of the microcontroller U9 through a resistor R43, and the other end of the capacitor C42 is grounded; the resistor R43 corresponds to the resistance of the resistor R45. Since the resistor R43 has the same resistance as the resistor R45, a voltage follower is formed with the dual operational amplifier U11.

Preferably, the rectifier bridge U12 is model MB 6S.

The power generation acquisition circuit comprises a resistor R41, a resistor R47, a resistor R51, a resistor R52, a current transformer T2, a capacitor C45, a capacitor C46, a capacitor C49, a rectifier bridge U13 and a double operational amplifier U11, wherein one end of a primary winding of the current transformer T2 is connected with a live wire of a power supply of a generator through a resistor R41, the other end of a primary winding of the current transformer T2 is connected with a zero wire of the power supply of the generator, two ends of a secondary winding of the current transformer T2 are connected with two ends of the resistor R51, two ends of the capacitor C49 and 3 and 4 pins of an input end of a rectifier bridge U13, a positive output end of the rectifier bridge U13 is connected with one ends of the resistor R47, the resistor R47 and the capacitor C47, the other end of the resistor R47 is connected with the capacitor C47 and an INA positive input end of the double operational amplifier U47, and. The current limiting resistor R41 and the primary side of the current transformer T2 form a sampling of generated voltage, the current transformer T2 induces current to generate 0-3.3V voltage in a resistor R51, the voltage is filtered by a capacitor C49 and rectified by a rectifier bridge U13, a resistor R47, a resistor R52, a capacitor C45 and a capacitor C46 form an INA positive input end of a double-operational amplifier U11, a generated high-voltage signal is subjected to current limiting and voltage reduction by a resistor R41, the current transformer T2 is isolated, the resistor R51 performs sampling, the rectifier bridge U13 performs rectification, the voltage of the resistor R47 is adjusted, the signal is sent to the positive input end of the amplifier, and the sampling rectification of the power generation and power supply of the.

The generated voltage follower circuit comprises a resistor R42, a resistor R44 and a capacitor C41, wherein two ends of the resistor R44 are connected with an INA negative input end and an OUT output end of a double operational amplifier U11, the OUT output end of the double operational amplifier U11 is respectively connected with the capacitor C41 and a network 220_ A _ check pin of a microcontroller U9 through a resistor R42, the other end of the capacitor C41 is grounded, and the resistance value of the resistor R42 corresponds to that of the resistor R44. Since the resistor R42 has the same resistance as the resistor R44, a voltage follower is formed with the dual operational amplifier U11.

Preferably, the rectifier bridge U13 is model MB 6S.

As shown in fig. 9, the utility model discloses a signal acquisition circuit includes Oil mass acquisition circuit, the current acquisition circuit, battery voltage acquisition circuit, 12V voltage acquisition circuit, the temperature acquisition circuit, Oil mass acquisition circuit is connected with microcontroller U9's GetSigADC _ Oil foot, current acquisition circuit is connected with microcontroller U9's GetSigADC _ l foot, battery voltage acquisition circuit is connected with microcontroller U9's GetSigADC _52V foot, 12V voltage acquisition circuit is connected with microcontroller U9's GetSigADC _12V foot, the temperature acquisition circuit is connected with microcontroller U9's GetSigDQ _ TEMPER foot. The oil quantity acquisition circuit, the current acquisition circuit, the battery voltage acquisition circuit, the 12V voltage acquisition circuit and the temperature acquisition circuit are respectively used for acquiring oil quantity change data, current change data, battery voltage change data, 12V voltage change data and temperature change data of the generator, sending the data to the microcontroller U9, converting the data through an ADC (analog to digital converter), and sending the data to a platform for display; the signal acquisition circuit realizes the real-time acquisition of data such as the oil quantity, the current, the temperature, the battery voltage and the like of the generator and provides real-time data for the intelligent management of the generator.

The oil quantity acquisition circuit comprises a resistor R5, a diode D1, a FUSE FUSE1, an oil level sensor, a resistor R6, a capacitor C4, a dual operational amplifier U1, a resistor R2, a capacitor C2 and a resistor R4, wherein one ends of the resistor R5 and the diode D1 are connected with a 3.3V power supply, the other ends of the resistor R5 and the diode D1 are connected with one ends of the FUSE FUSE1 and the oil level sensor, and the other end of the oil level sensor is grounded; one end of a resistor R6 and one end of a capacitor C4 are connected with the INA positive input end of the dual operational amplifier U1, the other end of the resistor R6 is connected with the other end of the FUSE FUSE1, and the other end of the capacitor C4 is grounded; the OUT output end of the dual operational amplifier U1 is connected with a GetSigADC _ Oil pin of the microcontroller U9 and a capacitor C2 through a resistor R2, the other end of the capacitor C2 is grounded, and the INA negative input end of the dual operational amplifier U1 is connected with a resistor R4. One ends of a resistor R5 and a diode D1 are connected with a 3.3V power supply, the other ends of the resistor R5 and the diode D1 are connected with a FUSE FUSE1 and an oil level sensor, and a resistor R6 and a capacitor C4 are connected with an INA positive input end of a double operational amplifier U1 to form oil quantity acquisition positive input; the resistor R2, the resistor R4 and the capacitor C2 form oil volume voltage following output; when the Oil quantity changes, the sensor converts the change of the voltage to the voltage follower, then the change of the voltage is input to a GetSigADC _ Oil pin of the microcontroller U9, and the microcontroller U9 transmits data to the platform for displaying through ADC conversion.

Preferably, the dual operational amplifier U1 is of the type LM 358.

The current acquisition circuit comprises a FUSE FUSE7, an adjustable potentiometer RV1, a resistor R7, a resistor R8, a resistor R9, a capacitor C5, a resistor R1, a resistor R3 and a capacitor C1, wherein input current sequentially passes through the FUSE FUSE7, the adjustable potentiometer RV1, the resistor R7 and the resistor R8 and is connected to the INB positive input end of a double-operational amplifier U1, the negative electrode of the resistor R7 is grounded through the resistor R9, and the negative electrode of the resistor R8 is grounded through the capacitor C5; the OUTB output end of the double operational amplifier U1 is respectively connected with a GetSigADC _ l pin of the microcontroller U9 and a capacitor C1 through a resistor R1, the other end of the capacitor C1 is grounded, one end of a resistor R3 is connected with the OUTB output end of the double operational amplifier U1, and the other end of the resistor R3 is connected with the INB negative input end of the double operational amplifier U1. The adjustable potentiometer RV1 is used for current compensation adjustment, a FUSE FUSE7, the adjustable potentiometer RV1, a resistor R7, a resistor R8, a resistor R9 and a capacitor C5 form current acquisition forward input, and a resistor R1, a resistor R3 and a capacitor C1 form current and voltage follow-up output; the principle is the same as oil collection.

The battery voltage acquisition circuit comprises a dual operational amplifier U2, a FUSE FUSE2, a FUSE FUSE4, a resistor R15, a resistor R16, a resistor R18, a capacitor C9, a capacitor C10, a resistor R10, a resistor R12 and a capacitor C7, wherein the positive output of a battery is connected to the INA positive input end of the dual operational amplifier U2 through the resistor R15, the FUSE FUSE2 and the resistor R16 in sequence, the negative electrode of the resistor R15 is grounded through the resistor R18 and the capacitor C9 respectively, the negative electrode of the resistor R16 is grounded through the capacitor C10, the OUT output end of the dual operational amplifier U2 is connected with the GetSigADC _52V pin of the microcontroller U9 and the capacitor C7 through the resistor R10 respectively, the other end of the capacitor C7 is grounded, and the INA negative input end of the dual operational amplifier U1 is connected with the resistor R12. The battery voltage acquisition positive input is formed by a FUSE2, a FUSE4, a resistor R15, a resistor R16, a resistor R18, a capacitor C9 and a capacitor C10, and the battery voltage follow output is formed by the resistor R10, the resistor R12 and the capacitor C7; the principle is the same as oil collection.

Preferably, the dual operational amplifier U2 is of the type LM 358.

The 12V voltage acquisition circuit comprises a FUSE FUSE3, a resistor R11, a resistor R13, a resistor R14, a resistor R17, a resistor R19, a capacitor C11, a capacitor C12 and a capacitor C8, a 12V power supply is connected to the INB positive input end of the dual operational amplifier U2 through a resistor R14, a FUSE FUSE3 and a resistor R17 in sequence, the negative electrode of the resistor R14 is grounded through the resistor R19 and the capacitor C12 respectively, and the negative electrode of the resistor R17 is grounded through the capacitor C11; the OUTB output end of the dual operational amplifier U2 is connected with a GetSigADC _12V pin of the microcontroller U9 and a capacitor C8 through a resistor R11, the other end of the capacitor C8 is grounded, and the INB negative input end of the dual operational amplifier U2 is connected with a resistor R13. 12V voltage acquisition positive input is formed by a FUSE3, a resistor R14, a resistor R17, a resistor R19, a capacitor C11 and a capacitor C12, and 12V voltage follow output is formed by a resistor R11, a resistor R13 and a capacitor C8; the principle is the same as oil collection.

As shown in fig. 10, the temperature acquisition circuit includes a temperature sensor U4 and a resistor R22, two ends of the resistor R22 are respectively connected to a 2 nd pin and a 3 rd pin of the temperature sensor U4, a 1 st pin of the temperature sensor U4 is grounded, a 3 rd pin of the temperature sensor U4 is connected to a 3.3V power supply, and a 2 nd pin of the temperature sensor U4 is connected to a GetSigDQ _ TEMPER pin of the microcontroller U9. When the temperature sensor U4 senses that the temperature passes through the No. 2 pin of the temperature sensor U4, the data is transmitted to the microcontroller U9, and the microcontroller U9 sends the temperature value to the platform for display after ADC conversion.

As shown in fig. 11, the utility model discloses a 4G module and SIM circuit include module socket J3, 4G module, 4G RESET circuit, 4G sends data level conversion circuit, 4G receives data level conversion circuit, the SIM circuit, module socket J3 is pic-52 p, 4G module and module socket J3 correspond and are connected, module socket J3 connects microcontroller U9's network foot MCU _4G _ RESET through 4G RESET circuit, module socket J3 sends data level conversion circuit and connects microcontroller U9's network foot UARST2_4G _ TX through 4G, module socket J3 receives data level conversion circuit and connects microcontroller U9's network foot UARST2_4G _ RX through 4G; the SIM circuit includes a SIM card M1, a capacitor C14, a capacitor C15, a capacitor C16, a capacitor C17, a transient voltage suppression diode TVS1, a resistor R23, a resistor R24, and a resistor R25, wherein pins 1, 2, 3, and 6 of the SIM card M1 are grounded through the capacitor C14, the capacitor C15, the capacitor C16, and the capacitor C17, a negative terminal of the transient voltage suppression diode TVS1 is connected to pins 1, 2, 3, and 6 of the SIM card M1, and pins 2, 3, and 6 of the SIM card M1 are connected to pins UIM _ RST, UIM _ CLK, and UIM _ DAT of the module socket J3 through the resistor R23, the resistor R24, and the resistor R25, respectively. The 4G module is a general name of a product with hardware loaded to a specified frequency band, software supporting a standard LTE protocol and highly integrated and modularized software and hardware, and has the characteristics of high communication speed, wide network spectrum, flexible communication and the like; the hardware integrates radio frequency and baseband on a PCB platelet to complete wireless receiving, transmitting and baseband signal processing functions; the 4GLTE system can download at the speed of 100Mbps, is 50 times faster than dial-up networking, can also reach 50Mbps at the uploading speed, and can meet the requirements of almost all users on wireless service. The 4G LTE Advanced adopts a carrier aggregation technology, the downlink peak speed can reach 150Mbps, the 4G module and the 4G module of the SIM circuit are connected in a high-speed network, all terminal data and the running state of the equipment are transmitted to a service center in real time, the running state of the terminal equipment is monitored in real time through a management monitoring platform, and equipment faults can be checked in time; the generator is managed and controlled remotely and intelligently, and the efficiency is greatly improved in multiple aspects such as operation cost, operation scale, service timeliness and the like.

The 4G RESET circuit comprises a resistor R26, a triode Q1, a capacitor C18 and a resistor R28, wherein one end of the resistor R26 is connected with a 3.3V power supply, the other end of the resistor R26 is connected with a pin 22 of a module socket J3 and a collector of the triode Q1 and is connected with one end of the capacitor C18, the other end of the capacitor C18 is connected with the ground, one end of the resistor R28 is connected with a base electrode of the triode Q1, and the other end of the resistor R28 is connected with a network pin MCU _4G _ RESET of the microcontroller U9. The utility model uses the resistor R26, the triode Q1, the capacitor C18 and the resistor R28 to form a reset system of the 4G module; for resetting of the 4G module.

The 4G sending data level conversion circuit comprises a resistor R31, a resistor R32, a triode Q2 and a capacitor C20, wherein one end of the resistor R31, one end of the resistor R32 and one end of the capacitor C20 are connected with a 1.8V power supply of a pin 11 of a module socket J3, the other end of the resistor R31 is connected with a pin 23 of a module socket J3 and a collector of the triode Q2, the other end of the resistor R32 and the other end of the capacitor C20 are connected with a base of a triode Q2, and an emitter of the triode Q2 is connected with a network pin UARST2_4G _ TX of a microcontroller U9. The utility model discloses utilize resistance R31, resistance R32, triode Q2, electric capacity C20 to constitute 4G and send data level conversion circuit for send data to microcontroller U9.

The 4G received data level conversion circuit comprises a resistor R30, a resistor R33, a triode Q3 and a capacitor C21, wherein one end of the resistor R30 is connected with a 3.3V power supply, the other end of the resistor R30 is connected with a network pin UARST2_4G _ RX of a microcontroller U9 and a collector of the triode Q3, one ends of a resistor R33 and the capacitor C21 are connected with a 1.8V power supply of a pin 11 of a module socket J3, the other ends of the resistor R33 and the capacitor C21 are connected with a base of the triode Q3, and an emitter of the triode Q3 is connected with a pin 31 of a module socket J3. The utility model discloses utilize resistance R30, resistance R33, triode Q3, electric capacity C21 to constitute 4G and receive data level conversion circuit for receive the data that microcontroller U9 sent.

The 4G module and the SIM circuit further comprise a network state indicating circuit and a sending and receiving test end J4, wherein the network state indicating circuit comprises a resistor R27, a resistor R29 and a light emitting diode LED1, one end of the resistor R29 is connected with a pin 20 of the module socket J3 through a resistor R27, and the other end of the resistor R29 is connected with a pin 42 of the module socket J3 through a light emitting diode LED 1. The utility model discloses utilize resistance R27, resistance R29, emitting diode LED1 to constitute network state indicating circuit for show 4G network state.

Preferably, the SIM card M1 is a 6PIN card.

Pins

1 and 2 of the transmitting and receiving test terminal J4 are respectively connected with network pins UARST2_4G _ RX and UARST2_4G _ TX of the microcontroller U9.

The above are only specific embodiments of the present invention, and the protection scope of the present invention is not limited thereby; any replacement and improvement made on the basis of not violating the conception of the utility model belong to the protection scope of the utility model.

Claims

1. The signal acquisition circuit of the generator controller is characterized by comprising a microcontroller U9, an Oil quantity acquisition circuit, a current acquisition circuit, a battery voltage acquisition circuit, a 12V voltage acquisition circuit and a temperature acquisition circuit, wherein the microcontroller U9 is STM32F103C, the Oil quantity acquisition circuit is connected with a GetSigADC _ Oil pin of the microcontroller U9, the current acquisition circuit is connected with a GetSigADC _ l pin of the microcontroller U9, the battery voltage acquisition circuit is connected with a GetSigADC _52V pin of the microcontroller U9, the 12V voltage acquisition circuit is connected with a GetSigADC _12V pin of the microcontroller U9, and the temperature acquisition circuit is connected with a GetSigDQ _ TEMPER pin of the microcontroller U9.

2. The signal acquisition circuit of the generator controller according to claim 1, wherein the oil amount acquisition circuit comprises a resistor R5, a diode D1, a FUSE FUSE1, an oil level sensor, a resistor R6, a capacitor C4, a dual operational amplifier U1, a resistor R2, a capacitor C2 and a resistor R4, one ends of the resistor R5 and the diode D1 are connected with a 3.3V power supply, the other ends of the resistor R5 and the diode D1 are connected with one ends of the FUSE FUSE1 and the oil level sensor, and the other end of the oil level sensor is grounded; one end of the resistor R6 and one end of the capacitor C4 are connected with the INA positive input end of the dual operational amplifier U1, the other end of the resistor R6 is connected with the other end of the FUSE FUSE1, and the other end of the capacitor C4 is grounded; the OUT output end of the dual operational amplifier U1 is connected with a GetSigADC _ Oil pin of a microcontroller U9 and a capacitor C2 through a resistor R2, the other end of the capacitor C2 is grounded, and the INA negative input end of the dual operational amplifier U1 is connected with the resistor R4.

3. The signal acquisition circuit of the generator controller as claimed in claim 2, wherein the dual operational amplifier U1 is model LM 358.

4. The signal acquisition circuit of the generator controller as claimed in claim 2, wherein the current acquisition circuit comprises a FUSE7, an adjustable potentiometer RV1, a resistor R7, a resistor R8, a resistor R9, a capacitor C5, a resistor R1, a resistor R3 and a capacitor C1, the input current is connected to the INB positive input end of the dual operational amplifier U1 through the FUSE7, the adjustable potentiometer RV1, the resistor R7 and the resistor R8 in sequence, the negative electrode of the resistor R7 is grounded through the resistor R9, and the negative electrode of the resistor R8 is grounded through the capacitor C5; the OUTB output end of the double operational amplifier U1 is connected with a GetSigADC _ l pin of the microcontroller U9 and a capacitor C1 through a resistor R1, the other end of the capacitor C1 is grounded, one end of a resistor R3 is connected with the OUTB output end of the double operational amplifier U1, and the other end of the resistor R3 is connected with an INB negative input end of the double operational amplifier U1.

5. The signal acquisition circuit of the generator controller as claimed in claim 1, wherein the battery voltage acquisition circuit comprises a dual operational amplifier U2, a FUSE2, a FUSE4, a resistor R15, a resistor R16, a resistor R18, a capacitor C9, a capacitor C10, a resistor R10, a resistor R12 and a capacitor C7, wherein the positive output of the battery is connected to the INA positive input terminal of the dual operational amplifier U2 through the resistor R15, the FUSE2 and the resistor R16 in sequence, the negative electrode of the resistor R15 is connected to the ground through the resistor R18 and the capacitor C9, the negative electrode of the resistor R16 is connected to the ground through the capacitor C10, the OUT output terminal of the dual operational amplifier U2 is connected to the getadc _52V pin and the capacitor C7 of the microcontroller U9 through the resistor R10, the other terminal of the capacitor C7 is connected to the ground, and the negative input terminal of the INA operational amplifier U1 is connected to the resistor R12.

6. The signal acquisition circuit of the generator controller as claimed in claim 5, wherein the dual operational amplifier U2 is model LM 358.

7. The signal acquisition circuit of the generator controller as claimed in claim 5, wherein the 12V voltage acquisition circuit comprises a FUSE FUSE3, a resistor R11, a resistor R13, a resistor R14, a resistor R17, a resistor R19, a capacitor C11, a capacitor C12 and a capacitor C8, the 12V power supply is connected to the INB positive input end of the dual operational amplifier U2 through the resistor R14, the FUSE FUSE3 and the resistor R17 in sequence, the negative electrode of the resistor R14 is grounded through the resistor R19 and the capacitor C12 respectively, and the negative electrode of the resistor R17 is grounded through the capacitor C11; the OUTB output end of the double operational amplifier U2 is respectively connected with a GetSigADC _12V pin of the microcontroller U9 and a capacitor C8 through a resistor R11, the other end of the capacitor C8 is grounded, and the INB negative input end of the double operational amplifier U2 is connected with the resistor R13.

8. The signal acquisition circuit of the generator controller as claimed in any one of claims 1 to 7, wherein the temperature acquisition circuit comprises a temperature sensor U4 and a resistor R22, two ends of the resistor R22 are respectively connected with a pin 2 and a pin 3 of the temperature sensor U4, the pin 1 of the temperature sensor U4 is grounded, the pin 3 of the temperature sensor U4 is connected with a 3.3V power supply, and the pin 2 of the temperature sensor U4 is connected with a pin GetSigDQ _ TEMPER of the microcontroller U9.