CN217689815U

CN217689815U - Analog quantity data acquisition board card

Info

Publication number: CN217689815U
Application number: CN202221294242.2U
Authority: CN
Inventors: 彭峰; 丁泽锋
Original assignee: Zhuhai Guanghaojie Technology Co ltd
Current assignee: Zhuhai Guanghaojie Technology Co ltd
Priority date: 2022-05-27
Filing date: 2022-05-27
Publication date: 2022-10-28
Anticipated expiration: 2032-05-27

Abstract

The utility model discloses an analog quantity data acquisition integrated circuit board, including the base plate, install little the control unit on the base plate, little the control unit connection has interface unit, dial-up to set up unit, IO expansion unit, information storage unit and communication unit, and interface unit connection has AD acquisition unit, and information storage unit is connected with the clock processing unit, and interface unit includes 35 analog quantity input interfaces and 105 way output interfaces, still is equipped with power supply unit on the base plate. The utility model discloses a set up 35 way analog input interface and 105 way output interface and little the control unit, AD acquisition unit complex mode, realize multichannel analog input, multiplexed output's function, a board just can accomplish multichannel centralized control, and but control information clear record just can pass through clock processing unit record time node in information storage unit, it is convenient to maintain, the cost is saved, scribble on the corresponding electronic equipment and be equipped with anti-interference coating, avoid mutual interference between electronic equipment to cause the damage.

Description

Analog quantity data acquisition board card

Technical Field

The utility model relates to a data acquisition technical field, concretely relates to analog quantity data acquisition integrated circuit board.

Background

With the continuous development and maturity of the technology, the traditional analog data acquisition card has single data acquisition and output, cannot meet the requirements of multi-path analog input and multi-path output of some circuits in the prior art, needs multi-board combined control and is inconvenient to maintain; there is no processing record of control information, the post-maintenance of the board card by the operating personnel is inconvenient, and the units are easy to interfere with each other, so that the electronic equipment is damaged due to overload.

SUMMERY OF THE UTILITY MODEL

The utility model aims at designing an analog quantity data acquisition integrated circuit board to solve the problem of proposing among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an analog quantity data acquisition integrated circuit board, includes the base plate, install little the control unit on the base plate, little the control unit connection has interface unit, dial-up setting unit, IO to extend unit, information storage unit and communication unit, interface unit connection has AD acquisition unit, and information storage unit is connected with clock processing unit, interface unit includes 35 analog quantity input interface and 105 way output interface, still be equipped with the power supply unit on the base plate, little the control unit dial-up setting unit IO extend the unit information storage unit the communication unit AD acquisition unit with clock processing unit all is equipped with anti-interference coating.

Further, the communication unit comprises an internet access communication interface and an RS232 serial port communication interface.

Further, the micro control unit is: the system comprises a singlechip, an MCU, a CPU, a DSP, an FPGA, a CPLD or an ARM.

Further, the dial setting unit comprises an ID dial module and a BOOT module.

Further, the AD acquisition unit comprises an A/D converter and a multiplexer.

Further, the output of the power supply unit is two 24V direct current power supplies.

The utility model has the advantages that: compared with the prior art, because the utility model discloses an analog data acquisition integrated circuit board is through setting up 35 ways analog input interface and 105 ways output interface and little the control unit, AD acquisition unit complex mode, realize multichannel analog input, the function of multiplexed output, multichannel centralized control just can be accomplished to a board, and control information can the clear record in information storage unit and can pass through clock processing unit record time node, it is convenient to maintain, and the cost is saved, scribble on the corresponding electronic equipment and be equipped with the anti-interference coating, avoid mutual interference between the electronic equipment to cause the damage.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic flow chart of the analog data acquisition board card of the present invention;

fig. 2 is a schematic structural diagram of the analog data acquisition board card of the present invention;

FIG. 3 is a schematic diagram of the structure of the I/O expansion unit of the present invention;

FIG. 4 is a schematic diagram of the A/D converter of the present invention;

FIG. 5 is a schematic structural diagram of the multiplexer according to the present invention;

the names of the components identified in the figures are as follows: 2. a substrate; 200. a communication unit; 201. a power supply unit; 202. a micro control unit; 203. a dial setting unit; 204. a network port communication interface; 205. an RS232 serial port communication interface; 206. 35 analog input interfaces; 207. 105 output interfaces; 208. An I/O expansion unit; 209. an AD acquisition unit; 210. an interface unit.

Detailed Description

The technical solutions of the present invention will be described more clearly and completely with reference to the accompanying drawings, and it is to be understood that only some, but not all embodiments of the present invention are described. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-5, the utility model discloses an analog data acquisition integrated circuit board, including base plate 2, base plate 2 openly installs little the control unit 202, little the control unit 202 is connected with interface unit 210, dial-up setting unit 203, I/O expands unit 208, information storage unit and communication unit 200, interface unit 210 is connected with AD acquisition unit, information storage unit is connected with clock processing unit, can accomplish definite value storage and clock processing, the transaction is handled to some time quantum of clear record, information storage unit includes FM24CL64 chip and MicroSD, be connected with little the control unit 202 through the 12C bus, clock processing unit includes SD2405 chip and peripheral circuit, interface unit 210 is including 35 way analog input interface 206 and 105 way output interface 207 locating the base plate 2 back, still be equipped with power supply unit 201 on the base plate 2. The micro control unit is as follows: the micro control unit 202 in the embodiment adopts DSP + FPGA and is used for driving and controlling a control center of an integrated board by the whole closed-loop stepping motor; the outgoing line of 35 analog input interfaces 206 is connected with a sensor for analog input, and the outgoing line of 105 output interfaces 207 is connected with a device to be controlled; the I/O expansion unit 208 uses an expansion chip of PCF8574, where PCF8574 is a parallel port expansion chip, and communicates with the main chip via an IIC interface, and at most 8 PCF8574 chips are hung on an IIC bus, and each chip supports 8 IO ports. The device comprises an 8-level bidirectional port and an IIC bus interface, the PCF8574 has low current consumption, and the output latch of the interface has high-current drive capability and can directly drive the LED. It also has an interrupt line (INT) connected to the MCU 202 interrupt logic. By sending an interrupt signal via INT, the remote IO port can inform the MCU 202 whether data is being input from the port without having to communicate via the IIC bus, which means that PCF8574 can also act as a single slave. The micro control unit 202, the dial-up setting unit 203, the I/O expansion unit 208, the information storage unit, the communication unit 200, the AD acquisition unit 209 and the clock processing unit are all provided with anti-interference coatings, so that the anti-interference coating has good electromagnetic compatibility and meets the requirement of a control function of a power distribution network switching station processing terminal.

The communication unit comprises a network port communication interface 204 and an RS232 serial port communication interface 205. The outgoing line of the network port communication interface 204 is connected with an upper computer network port for providing logic, and is used for the network cable to communicate with the board card, provide a network port UDP protocol, and the default IP address is: 192.168.5.180, and port number: 2017; the RS232 serial port interface is used for communication and debugging, and is configured as a baud rate 115200, an 8-bit data bit, a 1-bit stop bit and no check bit by default; an outgoing line of the RS232 serial port communication interface 205 is connected with a serial port of a logic upper computer and used for communication and debugging, and the serial port communication interface is configured to have a baud rate of 115200, an 8-bit data bit, a 1-bit stop bit and no check bit by default. The dial setting unit 203 includes an ID dial module and a BOOT module.

The AD acquisition unit comprises an A/D converter and a multiplexer. The A/D converter adopts an ADC128S10212 bit A/D converter, can simultaneously acquire 8 paths of signal input, and has the advantages of high acquisition frequency, high precision, wide voltage measurement range (basic range of 0-5V input voltage) and strong anti-interference capability. The multiplexer is an ADG5208 high-voltage anti-latch 8-channel multiplexer, 8 single-ended channels and 4 differential channels are built in the multiplexer, one of 8 paths of input can be output through program setting, ADC acquisition is carried out through the ADC128S102, 35 paths of analog quantity input can be carried out on 1 ADC128S102 chip, and data acquisition with low burr and quick set-up time is achieved.

The output of the power supply unit 201 is two paths of 24V direct-current power supplies, two paths of 24V power supply interfaces are provided, in the industrial control multi-axis control process, the board card can be supplied with power through one path of power supply interface, the other path of power supply interface can supply power to the other board card, thus the power supply interface can be provided for the machine station which can be greatly reduced, the power which is only required to be connected into the power supply is enough, the N board cards can be expanded to carry out control, further the wiring is reduced from the source, the occupied space is reduced, and the research and development cost is reduced.

The working principle of the embodiment is as follows: 35 way analog input interface 206 lead-out line connects the sensor, 105 way output interface 207 lead-out lines connect the device that needs control, net gape communication interface 204 lead-out line connects the host computer net gape that provides the logic, RS232 serial port communication interface 205 lead-out line connects the serial port of logic host computer, through little the control unit 202 multiple-effect control, AD acquisition unit cooperation, power supply unit 201 provides 24V DC power supply, accomplish the control management to each device, realize multichannel analog input, the function of multiplexed output, a board just can accomplish multichannel centralized control, and control information can clearly be recorded in information storage unit and can pass through clock processing unit recording time node, it is convenient to maintain, and the cost is saved, scribble anti-interference coating on corresponding electronic equipment, avoid the mutual interference between electronic equipment to cause the damage.

While the preferred embodiments of the present invention have been described, the present invention is not limited to the above embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications or substitutions are intended to be included within the scope of the present invention as defined by the appended claims.

Claims

1. The utility model provides an analog quantity data acquisition integrated circuit board, includes base plate (2), its characterized in that: install little the control unit (202) on base plate (2), little the control unit (202) is connected with interface unit (210), dial setting unit (203), IO and extends unit (208), information storage unit and communication unit (200), interface unit (210) is connected with AD acquisition unit (209), information storage unit is connected with the clock processing unit, interface unit (210) are including 35 analog input interface (206) and 105 way output interface (207), still be equipped with power supply unit (201) on base plate (2), little the control unit (202), dial setting unit (203) IO extends unit (208), information storage unit communication unit (200) AD acquisition unit (209) and clock processing unit all are equipped with anti-interference coating.

2. The analog data acquisition board card of claim 1, wherein: the communication unit (200) comprises a network port communication interface (204) and an RS232 serial port communication interface (205).

3. The analog data acquisition board card according to claim 1, wherein the micro control unit (202) is: the system comprises a singlechip, an MCU, a CPU, a DSP, an FPGA, a CPLD or an ARM.

4. The analog data acquisition board card of claim 1, wherein: the dial setting unit (203) comprises an ID dial module and a BOOT module.

5. The analog data acquisition board card of claim 1, wherein: the AD acquisition unit (209) comprises an A/D converter and a multiplexer.

6. The analog data acquisition board card of claim 1, wherein: the output of the power supply unit (201) is two paths of 24V direct current power supplies.