Intelligent power box control device

Abstract

The utility model provides an intelligent power box control device which comprises a power supply unit, an MCU control unit, a DI input detection unit, a DO output control unit, a clock unit, a flash memory unit, a metering unit, an alarm unit and a wireless transmission unit. The MCU control unit is respectively connected with the power supply unit, the DI input detection unit, the DO output control unit, the clock unit, the flash memory unit, the metering unit, the alarm unit and the wireless transmission unit. According to the utility model, DO control, DI detection, a real-time clock, data power-down storage, a metering function, a Bluetooth function and a voice function are integrated, the integration level is high, and the comprehensive performance is good.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of power box, especially relates to an intelligent power box control device. BACKGROUND

[0002] With the development of economic technology and the improvement of people's living standards, electric energy has become an essential secondary energy in people's daily life, bringing endless convenience to people's production and life. The power box is the control center of the reasonable distribution of electric energy in the command power supply line, is the control link of reliable receiving the upper power supply and correctly feeding the load electric energy, and is the key to obtaining the satisfaction of users to the power supply quality. The existing power box is insufficient in intelligence and low in integration, and has poor comprehensive performance, so it cannot meet people's electricity demand. SUMMARY

[0003] Therefore, the utility model aims at providing an intelligent power box control device which is complete in function and high in integration.

[0004] The utility model discloses a kind of intelligent power box control devices, it is characterized in that, including power unit, MCU control unit, DI input detection unit, DO output control unit, clock unit, flash memory unit, measurement unit, alarm unit and wireless transmission unit, the MCU control unit is connected with power unit, DI input detection unit, DO output control unit, clock unit, flash memory unit, measurement unit, alarm unit, wireless transmission unit respectively, the DI input detection unit is used to input and output AC contactor attraction signal, input circuit breaker closing, opening signal feedback;DO output control unit is used to control input and output AC contactor and control road plastic shell circuit breaker electric operation split, closing coil;The clock unit is used to provide real-time clock;The flash memory unit is used to store each item of data received by the MCU control unit, the measurement unit is used to monitor main circuit line voltage, ABC three-phase current, active power, reactive power, power factor, frequency, active electric energy, reactive electric energy;The alarm unit is used to send alarm signal when overcurrent, low voltage;The wireless transmission unit is used for the data communication between MCU control unit and remote monitoring end.

[0005] Preferably, the power unit includes 24V to 3.3V circuit, 24V to 5V circuit and 24V to 12V circuit.

[0006] Preferably, the DI input detection unit comprises ten input branches, each of which comprises a first resistor, a photoelectric coupler and a second resistor, the first end of the first resistor is connected with an input signal, the second end of the first resistor is connected with the positive input end of the photoelectric coupler, the negative input end of the photoelectric coupler is grounded, the positive output end of the photoelectric coupler is connected with the MCU control unit and the first end of the second resistor, and the second end of the second resistor is connected with a power supply unit.

[0007] Preferably, the DO output control unit comprises a drive chip connected with twelve control loops, and the control loop is a circuit breaker or a contactor.

[0008] Preferably, the MCU control unit is further connected with an Ethernet module, and the Ethernet module is composed of a ZLSN2003B chip and a peripheral circuit thereof.

[0009] Preferably, the wireless transmission unit adopts a Bluetooth chip, and the Bluetooth chip is connected with a working state indicator lamp and a connection state indicator lamp.

[0010] Preferably, the metering unit adopts an IM3331 chip and a peripheral circuit thereof.

[0011] Preferably, the alarm unit comprises a B voice chip and a buzzer, and the voice chip and the buzzer are connected with the MCU control unit.

[0012] Preferably, the flash memory unit adopts a W25Q256 flash memory chip.

[0013] Preferably, the MCU control unit is further connected with at least one of a debugging interface, a display interface, an environmental temperature detection interface and a code scanning gun interface, and the debugging interface, the display interface, the environmental temperature detection interface and the code scanning gun interface are all 485 interfaces.

[0014] Compared with the prior art, the intelligent power box control device can realize real-time and comprehensive operation supervision of the maintenance power box through the intelligent platform, supervise the operation of each maintenance power box, and monitor the current, voltage and fault alarm information of each power box during the use period; remote monitoring can be realized through the Bluetooth chip, the working condition of the power box can be obtained in real time, and the occurrence of production safety accidents can be prevented; the product has high integration and complete functions. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a principle block diagram of the intelligent power box control device in the embodiment.

[0016] Figure 2 is a power supply unit circuit diagram of the intelligent power box control device in the embodiment.

[0017] Figure 3 is the MCU control unit circuit diagram of the smart power box control device in the embodiment.

[0018] Figure 4 is the circuit diagram of the debugging interface, display interface, environmental temperature detection interface, and code scanning gun interface of the smart power box control device in the embodiment.

[0019] Figure 5 is the DI input detection unit circuit diagram of the smart power box control device in the embodiment.

[0020] Figure 6 is the DO output control unit circuit diagram of the smart power box control device in the embodiment.

[0021] Figure 7 is the alarm unit circuit diagram of the smart power box control device in the embodiment. DETAILED DESCRIPTION

[0022] The following is a specific embodiment of the utility model and further describes the technical scheme of the utility model in combination with the drawings, but the utility model is not limited to these embodiments.

[0023] As shown in Figure 1 A smart power box control device, characterized in that it comprises a power unit, a MCU control unit, a DI input detection unit, a DO output control unit, a clock unit, a flash memory unit, a metering unit, an alarm unit, and a wireless transmission unit, the MCU control unit is connected with the power unit, the DI input detection unit, the DO output control unit, the clock unit, the flash memory unit, the metering unit, the alarm unit, and the wireless transmission unit respectively, the DI input detection unit is used for inputting and outputting an AC contactor attraction signal and feeding back circuit breaker closing and opening signal feedback; the DO output control unit is used for controlling an input and output AC contactor and controlling a road plastic shell circuit breaker electric operation opening and closing coil; the clock unit is used for providing a real-time clock; the flash memory unit is used for storing various data received by the MCU control unit; the metering unit is used for monitoring main circuit line voltage, ABC three-phase current, active power, reactive power, power factor, frequency, active power energy, and reactive power energy; the alarm unit is used for sending an alarm signal when overcurrent or low voltage occurs; and the wireless transmission unit is used for data communication between the MCU control unit and a remote monitoring end.

[0024] As shown in Figure 2 The power unit comprises a 24V-to-3.3V circuit, a 24V-to-5V circuit, and a 24V-to-12V circuit.

[0025] The 24V-to-3.3V circuit and the 24V-to-5V circuit share a first EMC filter U5, which is of the type FI-B03D. The circuit further comprises non-polar capacitors C32-C37, polar capacitors C41-C43, a first power supply module U5-1, which is of the type URB2403S-10WR3, and a second power supply module U6-1, which is of the type URB2405S-10WR3. The positive pole of the capacitor C41 is connected to the +24V input and to the +VIN pin of the first EMC filter U5, and the negative pole is connected to the ground terminal GND and to the -VIN pin of the first EMC filter U5; the GND pin of the first EMC filter U5 is connected to PGND. The +VO pin of the first EMC filter U5 is connected to the first end of the capacitor C33, to the positive pole of the capacitor C43, to the Vin pin of the first power supply module U5-1, to the first end of the capacitor C36 and to the Vin pin of the second power supply module U6-1. The -VO pin of the first EMC filter U5 is connected to the first end of the capacitor C32, to the first end of the capacitor C35, to the negative pole of the capacitor C43, to the GND pin of the first power supply module U5-1 and to the GND pin of the second power supply module U6-1. The second end of the capacitor C32 is connected to the negative pole of the capacitor C42, to the ground terminal GND, to the first end of the capacitor C34 and to the 0V pin of the first power supply module U5-1. The positive pole of the capacitor C42 is connected to the second end of the capacitor C33, to the second end of the capacitor C34, to the +Vo pin of the first power supply module U5-1 and to the 3.3V voltage output pin. The second end of the capacitor C35 is connected to the negative pole of the capacitor C44, to the first end of the capacitor C37, to the ground terminal GND and to the 0V pin of the second power supply module U6-1; the positive pole of the capacitor C44 is connected to the second end of the capacitor C36, to the second end of the capacitor C37 and to the +Vo pin of the second power supply module U6-1 and to the 5V voltage output pin.

[0026] The 24V-to-12V circuit includes a second EMC filter U6, non-polar capacitors C38-C40, polar capacitors C45-C47, and a third power module U7-1, which is of the model URB2412S-6WR3. The positive pole of the capacitor C45 is connected to the +24V input and the +VIN pin of the second EMC filter U5, and the negative pole is connected to the ground terminal GND and the -VIN pin of the second EMC filter U5; the GND pin of the second EMC filter U5 is connected to PGND. The +VO pin of the second EMC filter U6 is connected to the first end of the capacitor C39, the positive pole of the capacitor C46, and the Vin pin of the third power module U7-1, respectively. The -VO pin of the second EMC filter U6 is connected to the first end of the capacitor C38, the negative pole of the capacitor C46, and the GND pin of the third power module U7-1, respectively. The second end of the capacitor C38 is connected to the negative pole of the capacitor C47, the first end of the capacitor C40, the ground terminal GND, and the 0V pin of the third power module U7-1, respectively; the positive pole of the capacitor C47 is connected to the second end of the capacitor C39, the second end of the capacitor C40, and the +Vo pin of the third power module U7-1, and serves as a 12V voltage output pin.

[0027] As shown in Figure 3 , the MCU control unit includes a filter circuit, an STM32F429IGT6 chip, and its peripheral circuit, wherein the filter circuit is composed of capacitors C1-C15 in parallel.

[0028] In the figure, the pins PA4-PA7 of the STM32F429IGT6 chip are connected to a flash memory unit, which adopts a W25Q256 flash memory chip. A clock unit is implemented by using a DS1340Z-33 clock chip, the pins X1 and X2 of which are connected to a crystal oscillator Y3, the pins VBACKUP and GND are connected to a battery B1, the pin VCC is connected to the first end of a resistor R32, the first end of a resistor R33, the first end of a resistor R34, the first end of a capacitor C61, the first end of a capacitor C62, and a 3.3V power supply, respectively; the pin FT / OUT is connected to the second end of the resistor R32; the pin SCL is connected to the second end of the resistor R33, and the pin SDA is connected to the second end of the resistor R34; the second ends of the capacitors C61 and C62 are both connected to ground.

[0029] In combination with Figure 1 , Figure 3 and Figure 4In detail, the pins PA9, PA10 and PA11 of the STM32F429IGT6 chip are connected with the debugging interface; the pins PC6, PC7 and PC8 of the STM32F429IGT6 chip are connected with the display interface; the pins PF6, PF7 and PF8 of the STM32F429IGT6 chip are connected with the environmental temperature detection interface; and the pins PE0, PE1 and PB9 of the STM32F429IGT6 chip are connected with the scanning code gun interface. The above interfaces are reserved options, and are realized by using the 485 communication interface. It should be noted that the working power supply of the display interface and the scanning code interface is DC 5V and 12V.

[0030] In combination with Figure 1 , Figure 3 and Figure 5 , the ten pins PG0, PG1 and PE7-PE14 of the STM32F429IGT6 chip are connected with the ten input branches of the DI input detection unit. Taking the first input branch as an example, it comprises the resistor R35, the photoelectric coupler U19 and the resistor R36, the first end of the resistor R35 is connected with the input signal DI1, the second end of the resistor R35 is connected with the positive input end of the photoelectric coupler U19, the negative input end of the photoelectric coupler U19 is grounded, the positive output end of the photoelectric coupler U19 is connected with the pin PG0 of the STM32F429IGT6 chip and the first end of the resistor R36, and the second end of the resistor R36 is connected with the 3.3V output of the power supply unit. As shown in the figure, the circuits of the remaining nine branches are the same as that of the first branch, and thus will not be described herein.

[0031] In combination with Figure 1 , Figure 3 and Figure 6 , the DO output control unit comprises a driving chip, and the driving chip is connected with twelve control loops, and the control loop is a circuit breaker or a contactor. The driver adopts ULN2003A, and the output pin thereof is 1C-7C. Therefore, two drivers are used in this part of the circuit, and they correspond to the twelve control loops respectively. One end of the coil of each control loop is connected with the driver, and the other end is connected with the 12V output of the power supply unit; and the two ends of the contact are connected with the applied electrical equipment. It should be noted that the coil part cannot be powered for a long time, and thus the signal output by the driver is a transient signal.

[0032] In combination with Figure 1 , Figure 3 and Figure 7 , the pins PC12 and PD2 of the STM32F429IGT6 chip are connected with the voice chip of the alarm unit, and the voice chip adopts BY8301-16P; and the pin PC0 is connected with the buzzer of the alarm unit.

[0033] In combination with Figure 1 , Figure 3Said, the pin PA0, PA1 of STM32F429IGT6 chip is connected with the Bluetooth chip, the Bluetooth chip is used as the wireless transmission unit, and the working state indicating lamp LED4 and the connection state indicating lamp LED3 are connected on the Bluetooth chip.

[0034] In combination Figure 1 , Figure 3 Said, the pin PB10, PB11, PE15 of STM32F429IGT6 chip is connected with the Ethernet module, the Ethernet module is formed by ZLSN2003B chip and peripheral circuit, and is driven by 3.3V power supply.

[0035] In combination Figure 1 , Figure 3 Said, the pin PA2, PA3 of STM32F429IGT6 chip is connected with the metering unit, and the metering unit is formed by IM3331 chip and peripheral circuit.

[0036] The utility model discloses can be controlled by the Bluetooth 220v contactor opening and closing by remote control terminal, and the voltage current of the main circuit breaker is gathered, and overvoltage and overcurrent alarm are detected, and the current time is recorded, and the data is stored in the flash memory chip, realizes the power failure saving function, and opens the voice alarm function, and this is a high integration, complete intelligent control power box, and the cost is low and practicality is good.

[0037] The specific embodiments described in the present application are only illustrative of the spirit of the utility model. Those skilled in the art to which the utility model belongs can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the spirit of the utility model or exceed the range defined by the attached claims.

Claims

1. An intelligent power box control device, characterized by, The application relates to a power supply unit, an MCU control unit, a DI input detection unit, a DO output control unit, a clock unit, a flash memory unit, a metering unit, an alarm unit and a wireless transmission unit, wherein the MCU control unit is connected with the power supply unit, the DI input detection unit, the DO output control unit, the clock unit, the flash memory unit, the metering unit, the alarm unit and the wireless transmission unit; the DI input detection unit is used for inputting and outputting an AC contactor attraction signal, inputting a circuit breaker closing and opening signal feedback; the DO output control unit is used for controlling an input and output AC contactor and controlling a road plastic shell circuit breaker electric operation closing and opening coil; the clock unit is used for providing a real-time clock; the flash memory unit is used for storing various data received by the MCU control unit; the metering unit is used for monitoring main loop line voltage, ABC three-phase current, active power, reactive power, power factor, frequency, active electric energy and reactive electric energy; the alarm unit is used for sending an alarm signal when overcurrent and low voltage occur; and the wireless transmission unit is used for data communication between the MCU control unit and a remote monitoring end.

2. The intelligent power box control device of claim 1, wherein, The power supply unit comprises a 24V-to-3.3V circuit, a 24V-to-5V circuit and a 24V-to-12V circuit.

3. The intelligent power box control device of claim 1 or 2, wherein, The DI input detection unit comprises ten input branches, each of which comprises a first resistor, a photoelectric coupler and a second resistor; the first end of the first resistor is connected with an input signal; the second end of the first resistor is connected with the positive input end of the photoelectric coupler; the negative input end of the photoelectric coupler is grounded; the positive output end of the photoelectric coupler is connected with the first end of the second resistor and the MCU control unit; and the second end of the second resistor is connected with the power supply unit.

4. The intelligent power box control device of claim 3, wherein, The DO output control unit comprises a driving chip connected with twelve control circuits, and the control circuits are circuit breakers or contactors.

5. The intelligent power box control device of claim 4, wherein, The MCU control unit is further connected with an Ethernet module, and the Ethernet module is composed of a ZLSN2003B chip and a peripheral circuit thereof.

6. The intelligent power box control device of claim 1 or 2, wherein, The wireless transmission unit adopts a Bluetooth chip, and the Bluetooth chip is connected with a working state indicator lamp and a connection state indicator lamp.

7. The intelligent power box control device of claim 1 or 2, wherein, The metering unit adopts an IM3331 chip and a peripheral circuit thereof.

8. The intelligent power box control device of claim 1 or 2, wherein, The alarm unit comprises a B speech chip and a buzzer, and the speech chip and the buzzer are connected with the MCU control unit.

9. The intelligent power box control device of claim 1 or 2, wherein, The flash memory unit adopts a W25Q256 flash memory chip.

10. The intelligent power box control device of claim 1 or 2, wherein, The MCU control unit is further connected with at least one of a debugging interface, a display interface, an environment temperature detection interface and a code scanning gun interface, and the debugging interface, the display interface, the environment temperature detection interface and the code scanning gun interface are all 485 interfaces.

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