CN215956046U - STM 32-based novel weak current power distribution system - Google Patents

Abstract

The utility model relates to the technical field of weak current power distribution systems, in particular to a novel STM 32-based weak current power distribution system, which comprises an STM32 control module and an STM32 power module which are connected by an RS485 communication module. The STM32 power module is used for data acquisition and power output, is connected with first EEPROM module, data acquisition module, excessive pressure overcurrent protection module, automatic output identification module on the STM32 power module. The STM32 control module is used for outputting remote instructions to realize different power distribution modes, and the STM32 control module is connected with a second EEPROM module and a human-computer interaction module. The utility model adopts the STM32 control module to control the weak current power distribution, realizes the free switching of various weak current power distribution modes through remote instructions, and integrates intelligent and automatic operation. Due to the modular design, the functional modules are independent and can be mutually associated through the STM32 control module. The functional module adopts an interface connection mode, is convenient to install, maintain and maintain, has expandability and realizes diversification of system functions.

Description

STM 32-based novel weak current power distribution system

Technical Field

The utility model relates to the technical field of weak current power distribution systems, in particular to a novel STM 32-based weak current power distribution system.

Background

With the popularization of a new infrastructure concept, various weak current intelligent devices are densely deployed in a certain area to become a normal state, and the construction scene puts higher requirements on the field of intelligent power supply. At present, a widely used weak current distribution box system adopts a PLC as a core controller, is limited by PLC resources and functions, and cannot meet the integrated development requirements of intellectualization, automation and all-round safety guarantee.

Disclosure of Invention

The utility model aims to provide a novel STM 32-based weak current power distribution system, which is characterized in that a logic circuit is matched with a control circuit, a functional module is combined, various weak current power distribution modes such as output switching power supply voltage, power supply output disconnection, output power parameter reading, output circuit safety protection and the like are provided for each path of power supply, and the various weak current power distribution modes can be freely switched through a remote instruction.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a novel weak current distribution system based on STM32 which characterized in that: the system comprises an STM32 control module, an STM32 power supply module, a first EEPROM module, a data acquisition module, an overvoltage and overcurrent protection module, an automatic output identification module, a second EEPROM module and a human-computer interaction module; wherein the content of the first and second substances,

the STM32 power module is used for data acquisition and power output, be connected with first EEPROM module on the STM32 power module respectively, the data acquisition module, excessive pressure overcurrent protection module, automatic output identification module, first EEPROM module is used for reading and writing the fault information and the settlement system parameter of STM32 power module when the operation in real time, the first EEPROM's of the readable system of external equipment information simultaneously, the data acquisition module is used for gathering STM32 power module's voltage and electric current, automatic output identification module is used for carrying out automatic output or remote command to the output voltage of power and switches.

STM32 control module is connected with STM32 power module through RS485 communication module, and STM32 control module is used for exporting remote instruction and realizes different distribution mode, is connected with second EEPROM module, man-machine interaction module on the STM32 control module respectively, the second EEPROM module is used for reading and writing the trouble information and the setting system parameter of STM32 control module when moving in real time, and the external equipment can read the information of system second EEPROM simultaneously, and man-machine interaction module includes the display screen for parameter setting and remote data read, control.

As a further improvement of the utility model, the automatic output identification module is connected with an alternating current/direct current output module and used for outputting the required voltage according to a remote instruction.

As a further improvement of the utility model, the data acquisition module comprises a current acquisition circuit and a voltage acquisition circuit, and the current acquisition circuit and the voltage acquisition circuit are connected with the signal input end of the STM32 control module.

As a further improvement of the utility model, the display screen is a touch display screen, and the display screen is connected with the signal output end of the STM32 control module.

As a further improvement of the utility model, the STM32 control module is further connected with a temperature and humidity acquisition module, and the temperature and humidity acquisition module comprises a digital temperature and humidity sensor.

As a further improvement of the utility model, the STM32 control module is provided with DI and DO interfaces.

Compared with the prior art, the utility model has the beneficial effects that: the utility model provides a weak current distribution system based on STM32, its simple structure, convenient to use. Adopt STM32 control module to control the light current distribution, realize the free switching of multiple different light current distribution mode through remote instruction, collect intelligent, automated operation in an organic whole. By adopting a modular design, the functional modules are independent and can be mutually associated through an STM32 control module. Each function module adopts an interface connection mode, so that the installation and the maintenance are convenient, the function expansibility is realized, and the diversification of the system functions is realized by increasing or reducing the installation of the function modules.

[ description of the drawings ]

Fig. 1 is a schematic framework diagram of the present invention.

[ detailed description ] embodiments

The technical solution in the embodiment of the present invention will be clearly and completely described with reference to fig. 1. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1, the novel weak current power distribution system based on STM32 provided by the utility model comprises an STM32 control module, an STM32 power supply module, a first EEPROM module, a data acquisition module, an overvoltage and overcurrent protection module, an automatic output identification module, a second EEPROM module and a human-computer interaction module.

The STM32 power module is data sampling and power output's core, and it is through carrying out rectifier filter to alternating current input electricity to according to the discernment to output load, automatic switch to suitable voltage or export through the setting of remote instruction. The STM32 power module is connected with a first EEPROM module, a data acquisition module, an overvoltage and overcurrent protection module and an automatic output identification module respectively. The first EEPROM module is used for reading and writing fault information and system parameters of the STM32 power module in real time during operation, and the external equipment can read information of the first EEPROM of the system. The data acquisition module is used for acquiring the voltage and the current of the STM32 power module. Because the power output system is mixed by alternating current and direct current, a voltage transformer and a current transformer are used for collecting corresponding signals when collecting voltage and current signals, the amplitude range of the signals is between 0-3.3V after the signals are subjected to voltage reduction and filtering treatment, and then the signals are input into an AD channel of an STM32 control module to perform data signal collection of analog signals. The data acquisition module includes current acquisition circuit and voltage acquisition circuit, and current acquisition circuit and voltage acquisition circuit are connected with STM32 control module's signal input part through STM32 power module's RS485 communication interface. The overvoltage and overcurrent protection module is used for automatically cutting off the circuit when the current or voltage value exceeds the limit, so that the protection effect on circuit elements and circuits is realized. The collected data is compared with the set parameters to determine whether to cut off the output, so that the single board is protected from being damaged. The automatic output identification module is used for automatically outputting the output voltage of the power supply or switching a remote instruction. The automatic output identification module is connected with an alternating current/direct current output module and used for outputting required voltage according to a remote instruction.

STM32 control module is connected with STM32 power module through RS485 communication module, and STM32 control module is used for exporting remote command and realizes different distribution modes. And the STM32 control module is respectively connected with a second EEPROM module and a human-computer interaction module. The second EEPROM module is used for reading and writing fault information and setting system parameters of the STM32 control module in real time during operation, and the external equipment can read the information of the second EEPROM of the system. The human-computer interaction module is used for parameter setting and remote data reading and controlling and comprises a 12-inch touch display screen, and the touch display screen is connected with the signal output end of the STM32 control module. The touch display screen displays the actual parameters of the system and the running state of the single board in real time and can be used for setting the system parameters to inquire fault information and controlling the output and stop of the power supply.

The STM32 control module is last to also be connected with humiture acquisition module, humiture acquisition module is digital temperature and humidity sensor, and real-time detection's humiture data passes through 12C interface output to STM32 control module. The STM32 control module is also provided with a DI/DO interface.

The STM32 control module and the STM32 power module both use STM32 as a core processor, and the processor chip is specially designed and applied to meet the requirements of the industrial control field integrating high performance, low power consumption and competitive price. The highest working frequency of the chip can reach 168MHZ, the chip integrates abundant internal resources, so that the hardware structure design is simpler, the system power consumption is greatly reduced, the ADC sampling precision of the STM32 is 12 bits, the chip is a successive approximation type analog-to-digital converter, and the conversion of each channel can be executed in a single, continuous, scanning or discontinuous mode. In addition, multiple conversion modes are available to select, support DMA data transfers, while STM32 has multiple standard USART serial communication interfaces.

The novel STM 32-based weak current power distribution system provided by the utility model is matched with a control circuit through a logic circuit and is combined with a functional module, so that various weak current power distribution modes such as output switching power supply voltage, power supply output on and off, output power parameter reading, output circuit safety protection and the like are provided for each power supply. The free switching of a plurality of different weak current power distribution modes is realized through remote instructions. By adopting a modular design, the functional modules are independent and can be mutually associated through an STM32 control module. Each function module adopts an interface connection mode, so that the installation and the maintenance are convenient, the function expansibility is realized, and the diversification of the system functions is realized by increasing or reducing the installation of the function modules.

Claims (6)

1. The utility model provides a novel weak current distribution system based on STM32 which characterized in that: the system comprises an STM32 control module, an STM32 power supply module, a first EEPROM module, a data acquisition module, an overvoltage and overcurrent protection module, an automatic output identification module, a second EEPROM module and a human-computer interaction module; wherein the content of the first and second substances,

the STM32 power module is used for data acquisition and power output, a first EEPROM module, a data acquisition module, an overvoltage and overcurrent protection module and an automatic output identification module are connected to the STM32 power module respectively, the first EEPROM module is used for reading and writing fault information and setting system parameters of the STM32 power module in real time when the power module operates, meanwhile, external equipment can read the information of the first EEPROM of the system, the data acquisition module is used for acquiring the voltage and current of the STM32 power module, and the automatic output identification module is used for automatically outputting the output voltage of the power or switching a remote instruction;

STM32 control module is connected with STM32 power module through RS485 communication module, and STM32 control module is used for exporting remote instruction and realizes different distribution mode, is connected with second EEPROM module, man-machine interaction module on the STM32 control module respectively, the second EEPROM module is used for reading and writing the trouble information and the setting system parameter of STM32 control module when moving in real time, and the external equipment can read the information of system second EEPROM simultaneously, and man-machine interaction module includes the display screen for parameter setting and remote data reading, control.

2. The novel STM 32-based weak current power distribution system according to claim 1, wherein: the automatic output identification module is connected with an alternating current/direct current output module and used for outputting required voltage according to a remote instruction.

3. The novel STM 32-based weak current power distribution system according to claim 1, wherein: the data acquisition module comprises a current acquisition circuit and a voltage acquisition circuit, wherein the current acquisition circuit and the voltage acquisition circuit are connected with the signal input end of the STM32 control module.

4. The novel STM 32-based weak current power distribution system according to claim 1, wherein: the display screen is a touch display screen, and the display screen is connected with the signal output end of the STM32 control module.

5. The novel STM 32-based weak current power distribution system according to claim 1, wherein: still be connected with humiture acquisition module on the STM32 control module, humiture acquisition module includes digital temperature and humidity sensor.

6. The novel STM 32-based weak current power distribution system according to claim 1, wherein: and the STM32 control module is provided with DI and DO interfaces.

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