CN217982359U

CN217982359U - Control circuit of expansion module of distributed pressure acquisition equipment

Info

Publication number: CN217982359U
Application number: CN202221524823.0U
Authority: CN
Inventors: 王峰
Original assignee: Changzhou Tiance Electronic Technology Co ltd
Current assignee: Changzhou Tiance Electronic Technology Co ltd
Priority date: 2022-06-17
Filing date: 2022-06-17
Publication date: 2022-12-06
Anticipated expiration: 2032-06-17

Abstract

The utility model relates to a control circuit of an extension module of distributed pressure acquisition equipment, which is used for signal connection between a PC end and the acquisition equipment; the intelligent control system comprises a main control module, a power supply module, a communication module and a storage module; the power supply module is connected with the main control module and supplies power to the main control module; the communication module comprises a TTL serial port communication module and a USB-USART communication module; the TTL serial port communication module is respectively connected with the main control module and the acquisition equipment so that the main control module sends acquisition parameters to the acquisition equipment and receives acquisition data of the acquisition equipment; the USB-USART communication module is respectively connected with the main control module and the PC end so that the PC end can set parameters; the storage module is connected with the main control module and used for storing data. The utility model discloses under the condition that does not change current distributed pressure measurement system, can realize wire transmission to wireless transmission, monitor the application of off-line storage on line to satisfy the demand of user in different environment.

Description

Control circuit of expansion module of distributed pressure acquisition equipment

Technical Field

The utility model relates to the field of communication technology, in particular to distributed pressure acquisition equipment's extension module's control circuit.

Background

The existing distributed pressure acquisition equipment at home and abroad cannot realize compatibility of wired transmission and wireless transmission, and online monitoring and offline storage, so that users need to replace different acquisition equipment in different use environments, and the use cost of the users is increased invisibly.

Disclosure of Invention

The utility model aims at overcoming the defect that prior art exists, provide a reasonable in design, can realize wire transmission to wireless transmission, monitor the application of off-line storage on line to satisfy the demand of user in different environment, reduced use cost's distributed pressure acquisition equipment's expansion module's control circuit.

Realize the utility model discloses the technical scheme of purpose is: a control circuit of an extension module of distributed pressure acquisition equipment is used for signal connection between a PC (personal computer) end and the acquisition equipment; the intelligent control system comprises a main control module, a power supply module, a communication module and a storage module; the power supply module is connected with the main control module and supplies power to the main control module; the communication module comprises a TTL serial port communication module and a USB-USART communication module; the TTL serial port communication module is respectively connected with the main control module and the acquisition equipment so that the main control module sends acquisition parameters to the acquisition equipment and receives acquisition data of the acquisition equipment; the USB-USART communication module is respectively connected with the main control module and the PC end so that the PC end can set parameters; the storage module is connected with the main control module and used for storing data.

The storage module in the technical scheme comprises an EEPROM storage module and an SD/TF card storage module; the EEPROM storage module is used for storing set parameters; the SD/TF card storage module is used for offline storage of collected data.

The communication module in the technical scheme further comprises a WIFI communication module; and the WIFI communication module is communicated with the PC end and is used for wirelessly transmitting data.

The power module comprises a 5V power output circuit and a 3.3V power output circuit.

According to the technical scheme, the power supply module supplies power for the external USB.

In the technical scheme, the power module supplies power to the internal battery; the external USB power supply can charge the internal battery through a battery charging circuit.

After the technical scheme is adopted, the utility model discloses following positive effect has: the utility model discloses under the condition that does not change current distributed pressure measurement system, can realize wire transmission to wireless transmission, monitor the application of off-line storage on line to satisfy the demand of user in different environment, reduced use cost.

Drawings

In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is provided in connection with the accompanying drawings, in which:

FIG. 1 is a block diagram of the principle structure of the present invention;

FIG. 2 is a circuit diagram of the 5V power output circuit of the present invention;

FIG. 3 is a circuit diagram of the 3.3V power output circuit of the present invention;

fig. 4 is a circuit diagram of the battery charging circuit of the present invention;

fig. 5 is a circuit diagram of the USB-USART communication module of the present invention.

The reference numbers in the drawings are as follows: the device comprises a main control module 1, a power supply module 2, a TTL serial port communication module 3, a USB-USART communication module 4, a collection device 5, a PC (personal computer) terminal 6, an EEPROM (electrically erasable programmable read-only memory) storage module 7, an SD/TF (secure digital/Trans flash) card storage module 8 and a WIFI (wireless fidelity) communication module 9.

Detailed Description

Referring to fig. 1 to 5, the present invention has a main control module 1, a power module 2, a communication module and a storage module; the power module 2 is connected with the main control module 1 and supplies power to the main control module 1, the main control module 1 takes an ARM chip STM32F407VGT6 of ST company as a core processor which is a 32-bit high-grade MCU based on a Cortex-M4 ARM inner core, the main frequency can reach 168MHz, and the main frequency comprises 1MB FLASH and 192KB RAM; the communication module comprises a TTL serial port communication module 3 and a USB-USART communication module 4; the TTL serial port communication module 3 is respectively connected with a USART communication port of the main control module 1 and the acquisition equipment 5, so that the main control module 1 sends acquisition parameters for the acquisition equipment 5 and receives acquisition data of the acquisition equipment 5, namely the USART communication port of the main control module 1 is connected with a USB socket and is connected with the acquisition equipment 5 through a patch cord; the USB-USART communication module 4 is respectively connected with the main control module 1 and the PC terminal 6 so that the PC terminal 6 can set parameters, the USB-USART communication module 4 uses an FT232RQ chip of FTDI company, which is a conversion chip of USB and serial ports, and the baud rate of the serial ports can be set to be 3Mbaud at most; the storage module is connected with the main control module 1 and used for storing data.

The storage module comprises an EEPROM storage module 7 and an SD/TF card storage module 8; the EEPROM memory module 7 uses an M24C02 chip of ST corporation, which has a memory space of 256bytes for the storage of setting parameters; the SD/TF card storage module 8 is used for offline storage of collected data.

The communication module also comprises a WIFI communication module 9; the WIFI communication module 9 is communicated with the PC terminal 6 and used for wirelessly transmitting data, an ESP8266 chip of Le Xin company is used by the WIFI communication module 9, the chip provides a highly integrated Wi-Fi SoC solution, and the Wi-Fi SoC solution is low in power consumption, compact in design and high in stability.

The power module 2 comprises a 5V power output circuit and a 3.3V power output circuit, wherein the 5V power output circuit uses an LT1961 chip of ADI company, the LT1961 chip is provided with a boost converter with 1.5A switch current, the input voltage range is 3V-25V, the boost converter is suitable for external USB 5V power supply and is also suitable for internal battery 3.7V power supply, the 3.3V power output circuit uses a TPS563201 chip of TI company, the TPS563201 chip is a simple and easy-to-use 3A synchronous buck converter packaged by 6-pin SOT-23, the power module 2 supplies power for external USB, and the power module 2 supplies power for the internal battery; the external USB power supply can charge the internal battery through a battery charging circuit, the battery charging circuit uses a SLM6500 chip of Sonlang micro corporation, the SLM6500 chip is a 2A synchronous step-down lithium battery charging chip, and the precision reaches +/-1%.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A control circuit of an extension module of distributed pressure acquisition equipment is used for signal connection between a PC (personal computer) end (6) and acquisition equipment (5); the method is characterized in that: the intelligent power supply comprises a main control module (1), a power supply module (2), a communication module and a storage module; the power supply module (2) is connected with the main control module (1) and supplies power to the main control module (1); the communication module comprises a TTL serial port communication module (3) and a USB-USART communication module (4); the TTL serial port communication module (3) is respectively connected with the main control module (1) and the acquisition equipment (5) so that the main control module (1) sends acquisition parameters for the acquisition equipment (5) and receives acquisition data of the acquisition equipment (5); the USB-USART communication module (4) is respectively connected with the main control module (1) and the PC end (6) so that the PC end (6) can set parameters; the storage module is connected with the main control module (1) and used for storing data.

2. The control circuit of the expansion module of the distributed pressure acquisition device of claim 1, wherein: the storage module comprises an EEPROM storage module (7) and an SD/TF card storage module (8); the EEPROM storage module (7) is used for storing the setting parameters; the SD/TF card storage module (8) is used for offline storage of collected data.

3. The control circuit of the expansion module of the distributed pressure acquisition apparatus according to claim 1 or 2, characterized in that: the communication module also comprises a WIFI communication module (9); and the WIFI communication module (9) is communicated with the PC end (6) and is used for wirelessly transmitting data.

4. The control circuit of the expansion module of the distributed pressure acquisition device of claim 1, wherein: the power supply module (2) comprises a 5V power supply output circuit and a 3.3V power supply output circuit.

5. The control circuit of the expansion module of the distributed pressure acquisition device of claim 4, wherein: the power supply module (2) supplies power for an external USB.

6. The control circuit of the expansion module of the distributed pressure acquisition device of claim 5, wherein: the power module (2) supplies power to an internal battery; the external USB power supply can charge the internal battery through a battery charging circuit.