A multifunctional data acquisition instrument

Abstract

The utility model belongs to data acquisition technical field discloses a kind of multifunctional data acquisition instrument, including case, main control board, comprehensive interface board, MCU module and UPS system, the beneficial effects of the utility model are as follows:1, by integrating CH348QUSB chip, AD4111 chip and PCF8575 chip, the quantity of digital channel, analog channel and switch quantity channel is significantly expanded, the demand of different fields to a variety of signal acquisition is greatly met, the development trend of increasingly diverse monitoring instrument type and increasingly dense sampling point is adapted.2, digital signal is directly transmitted to main control board through USB interface, analog signal and switch quantity signal are then uploaded to main control board after being pretreated by MCU module, bottleneck of data transmission is reduced, and overall acquisition efficiency is improved.3, adopt case integration design, touch screen, main control board, comprehensive interface board and UPS system are integrated in the same case, not only save space, but also facilitate installation, maintenance and management.

Description

Technical Field

[0001] This utility model relates to the field of data acquisition technology, specifically to a multifunctional data acquisition instrument. Background Technology

[0002] Multifunctional data acquisition instruments are widely used in various fields such as remote power monitoring, hydrological and water resource monitoring, flash flood and geological disaster monitoring and early warning, environmental pollution monitoring, meteorological data acquisition, forest fire prevention monitoring, and industrial remote data acquisition and transmission. Their core function is to digitize data acquisition. They can automatically collect, record, and analyze data from terminal measuring instruments or sensors, supporting the acquisition of various signals including digital, analog, and switch signals, as well as monitoring data and equipment status information. This data and status are then uploaded to the monitoring host computer via a transmission network. Simultaneously, the host computer can issue control commands, which are forwarded by the data acquisition instrument to control the monitoring instruments.

[0003] Current data acquisition instruments have a limited number of signal acquisition channels.

[0004] With the increasing diversity of monitoring instruments, the growing density of sampling points, and the increasing complexity of control signals, existing data acquisition instruments are becoming insufficient in terms of the number of digital channels, analog channels, and switch channels. There is an urgent need to expand the scale of signal acquisition channels and further improve sampling speed and overall acquisition efficiency. Utility Model Content

[0005] To solve the above problems, this utility model provides a multifunctional data acquisition instrument, which is achieved through the following technical solution.

[0006] A multi-functional data acquisition instrument, comprising: The chassis has a cover hinged to one side of its top, and the cover and chassis are equipped with matching locking components. The chassis contains a touch screen and a signal access panel, and a connector port is provided on one side of the chassis. The main control board is located inside the chassis below the touch screen, and the touch screen is interactively connected to the main control board; The integrated interface board is located in the chassis below the signal access panel. The integrated interface board integrates three signal channels: digital channel, analog channel, and switch signal channel. The three signal channels are connected to the corresponding connector ports through signal cables. The connector ports are connected to external instruments and equipment. The three signal channels realize the acquisition of digital signals, analog signals, and switch signals, respectively. The digital signals are directly transmitted to the main control board. The MCU module is integrated on the integrated interface board as an expansion sub-board. The MCU module receives analog signals and digital signals collected by the integrated interface board through the input interface and transmits the analog signals and digital signals to the main control board. The UPS system is located in a chassis below the touch screen. The UPS system outputs 12V voltage to power the touch screen, main control board, integrated interface board and MCU module. A switch button for controlling the power supply of the UPS system is provided on the front of the chassis.

[0007] As a further embodiment of this utility model, the integrated interface board expands digital channels through the CH348QUSB chip integrated on it. There are two CH348QUSB chips, which are connected to the main control board through a USB interface. Each CH348QUSB chip expands eight RS232 digital channels and eight RS485 digital channels, and each RS232 digital channel and RS485 digital channel is connected to a connector port.

[0008] As a further embodiment of this invention, the analog signal includes a voltage signal and a current signal, and the analog channel includes a voltage channel and a current channel. The voltage channel and the current channel respectively acquire voltage signals and current signals. The integrated interface board expands the analog channel through two AD4111 chips integrated on it. Each AD4111 chip expands four voltage channels and four current channels respectively. The eight voltage channels and eight current channels expanded by the two AD4111 chips are respectively connected to a connector port. The input interface of the MCU module includes an SPI interface, and the analog signal acquired by the analog channel is transmitted to the MCU module through the SPI interface.

[0009] As a further embodiment of this invention, the switching signal includes a switching input signal and a switching output signal, and the switching channel includes a switching input channel and a switching output channel. The switching input channel and the switching output channel respectively acquire the switching input signal and the switching output signal. The integrated interface board expands the switching channels through two PCF8575 chips integrated on it. Each PCF8575 chip expands eight switching input channels and eight switching output channels. The sixteen switching input channels and sixteen switching output channels expanded by the two PCF8575 chips are respectively connected to a connector port. The input interface of the MCU module includes an IIC interface, and the switching signal is transmitted to the MCU module through the IIC interface.

[0010] As a further embodiment of this invention, the MCU module and the main control board transmit signals via the ModBUS protocol.

[0011] As a further embodiment of this utility model, the main control board is an embedded industrial control host based on ARM architecture, the MCU module adopts an ESP32-S3 module, and the touch screen is a 7-inch MIPI screen.

[0012] The beneficial effects of this utility model are as follows: 1. By integrating the CH348QUSB chip, AD4111 chip and PCF8575 chip, the number of digital channels, analog channels and switch channels is significantly expanded, which greatly meets the needs of different fields for the acquisition of multiple signals and adapts to the development trend of increasingly diverse monitoring instrument types and increasingly dense sampling points.

[0013] 2. Digital signals are transmitted directly to the main control board via the USB interface, while analog signals and switch signals are preprocessed by the MCU module before being uploaded to the main control board, reducing data transmission bottlenecks and improving overall acquisition efficiency.

[0014] 3. The integrated chassis design combines the touch screen, main control board, integrated interface board and UPS system into the same chassis, which not only saves space, but also facilitates installation, maintenance and management. Attached Figure Description

[0015] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 : A schematic diagram of the structure of a multifunctional data acquisition instrument according to this utility model; Figure 2 A circuit connection diagram of a multi-functional data acquisition instrument; Figure 3 : Front view of the internal circuit board of the integrated interface board.

[0017] The attached figures are labeled as follows: 1-Chassis, 11-Cover, 12-Touchscreen, 13-Signal input panel, 14-Connector port, 15-Switch button, 2-Main control board, 21-CH348QUSB chip, 22-Digital channel, 23-AD4111 chip, 24-Voltage channel, 25-Current channel, 26-PCF8575 chip, 27-Digital input channel, 28-Digital output channel, 29-Input interface, 3-Integrated interface board, 4-MCU module, 5-UPS system. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model. Example

[0019] A multi-functional data acquisition instrument, comprising: The chassis has a cover that is hinged to one side of the top. The cover and the chassis are equipped with matching locking components. The chassis contains a touch screen and a signal input panel. A connector port is located on one side of the chassis. The main control board is located inside the chassis below the touch screen, and the touch screen is interconnected with the main control board. The main control board is an embedded industrial control host based on ARM architecture, the MCU module adopts ESP32-S3 module, and the touch screen is a 7-inch MIPI screen; The integrated interface board is located in the chassis below the signal access panel. The integrated interface board integrates three signal channels: digital channel, analog channel, and switch signal channel. The three signal channels are connected to the corresponding connector ports through signal cables. The connector ports are connected to external instruments and equipment. The three signal channels realize the acquisition of digital signals, analog signals, and switch signals, respectively. The digital signals are directly transmitted to the main control board. The MCU module is integrated on the integrated interface board as an expansion daughterboard. The MCU module receives analog and digital signals acquired by the integrated interface board through the input interface and transmits the analog and digital signals to the main control board. The MCU module and the main control board transmit signals via the ModBUS protocol; The UPS system is located in the chassis below the touch screen. The UPS system outputs 12V voltage to power the touch screen, main control board, integrated interface board and MCU module. The front of the chassis has a switch button to control the power supply of the UPS system.

[0020] In this embodiment, as Figures 1-2 As shown, the integrated chassis design integrates the touch screen, main control board, integrated interface board and UPS system into the same chassis, which not only saves space, but also facilitates installation, maintenance and management.

[0021] By expanding the number of digital channels, analog channels, and switch channels through the integrated interface board, the needs of different fields for acquiring multiple signals are greatly met, adapting to the development trend of increasingly diverse monitoring instrument types and increasingly dense sampling points.

[0022] UPS systems integrate batteries and automatically switch power supply when the mains power is interrupted, which can meet the needs of different scenarios (such as the field). Example

[0023] The integrated interface board expands digital channels through the CH348QUSB chip integrated on it. There are two CH348QUSB chips, which are connected to the main control board through the USB interface. Each CH348QUSB chip expands eight RS232 digital channels and eight RS485 digital channels. The RS232 digital channels and RS485 digital channels are each connected to a connector port.

[0024] In this embodiment, as Figures 2-3 As shown, during digital signal processing, the corresponding connector port is plugged into the digital signal generating device to acquire digital signals. The connector port connected to the RS232 digital channel is used to acquire short-distance, low-speed digital signals, while the connector port connected to the RS485 digital channel is used to acquire long-distance, multi-device cascaded digital signals. The acquired digital signals are transmitted to the main control board via the USB interface. Example

[0025] The analog signals include voltage and current signals. The analog channels include voltage and current channels, which acquire voltage and current signals respectively. The integrated interface board expands the analog channels through two AD4111 chips integrated on it. Each AD4111 chip expands four voltage channels and four current channels respectively. The eight voltage channels and eight current channels expanded by the two AD4111 chips are connected to a connector port respectively. The input interface of the MCU module includes an SPI interface. The analog signals acquired by the analog channels are transmitted to the MCU module through the SPI interface.

[0026] In this embodiment, as Figures 2-3 As shown, during analog signal processing, the corresponding connector port is plugged into the analog signal generator to acquire analog signals. The connector port connected to the current channel is used to acquire current signals, and the connector port connected to the voltage channel is used to acquire voltage signals. The acquired analog signals are transmitted to the MCU module for processing via the SPI interface, and the processed analog signals are uploaded to the main control board via the ModBUS protocol. Example

[0027] The digital signals include digital input signals and digital output signals. The digital channels include digital input channels and digital output channels. The digital input channels and digital output channels respectively acquire digital input signals and digital output signals. The integrated interface board expands the digital channels through two PCF8575 chips integrated on it. Each PCF8575 chip expands eight digital input channels and eight digital output channels. The sixteen digital input channels and sixteen digital output channels expanded by the two PCF8575 chips are each connected to a connector port. The input interface of the MCU module includes an IIC interface. The digital signals are transmitted to the MCU module through the IIC interface.

[0028] In this embodiment, as Figures 2-3 As shown, during the processing of digital signals, the corresponding connector port is plugged into the digital signal input or output device to acquire or feedback the digital signal. The connector port connected to the digital input channel is used for digital input signals, and the connector port connected to the digital output channel is used for outputting digital output signals.

[0029] The acquired digital input signals are transmitted to the MCU module for processing via the IIC interface, and the processed digital input signals are uploaded to the main control board via the ModBUS protocol.

[0030] The main control board sends the digital output signals to the MCU module for processing via the ModBUS protocol. The processed digital output signals are then transmitted to external devices through the IIC interface, PCF8575 chip, digital output channel, and connector port for control of the external devices.

[0031] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. The selection and detailed description of these embodiments in this specification are intended to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it.

Claims

1. A multifunctional data acquisition instrument, characterized in that, include: The chassis has a cover hinged to one side of its top, and the cover and chassis are equipped with matching locking components. The chassis contains a touch screen and a signal access panel, and a connector port is provided on one side of the chassis. The main control board is located inside the chassis below the touch screen, and the touch screen is interactively connected to the main control board; The integrated interface board is located in the chassis below the signal access panel. The integrated interface board integrates three signal channels: digital channel, analog channel, and switch signal channel. The three signal channels are connected to the corresponding connector ports through signal cables. The connector ports are connected to external instruments and equipment. The three signal channels realize the acquisition of digital signals, analog signals, and switch signals, respectively. The digital signals are directly transmitted to the main control board. The MCU module is integrated on the integrated interface board as an expansion daughterboard. The MCU module receives analog signals and digital signals collected by the integrated interface board through the input interface and transmits the analog signals and digital signals to the main control board. The UPS system is located in a chassis below the touch screen. The UPS system outputs 12V voltage to power the touch screen, main control board, integrated interface board and MCU module. A switch button for controlling the power supply of the UPS system is provided on the front of the chassis.

2. The multifunctional data acquisition instrument according to claim 1, characterized in that, The integrated interface board expands digital channels through the CH348QUSB chip integrated on it. There are two CH348QUSB chips, which are connected to the main control board through a USB interface. Each CH348QUSB chip expands eight RS232 digital channels and eight RS485 digital channels, and each RS232 digital channel and RS485 digital channel is connected to a connector port.

3. The multifunctional data acquisition instrument according to claim 1, characterized in that, The analog signals include voltage signals and current signals. The analog channels include voltage channels and current channels, which respectively acquire voltage signals and current signals. The integrated interface board expands the analog channels through two AD4111 chips integrated on it. Each AD4111 chip expands four voltage channels and four current channels. The eight voltage channels and eight current channels expanded by the two AD4111 chips are respectively connected to a connector port. The input interface of the MCU module includes an SPI interface. The analog signals acquired by the analog channels are transmitted to the MCU module through the SPI interface.

4. A multifunctional data acquisition instrument according to claim 1, characterized in that, The digital signals include digital input signals and digital output signals. The digital channels include digital input channels and digital output channels. The digital input channels and digital output channels respectively acquire digital input signals and digital output signals. The integrated interface board expands the digital channels through two PCF8575 chips integrated on it. Each PCF8575 chip expands eight digital input channels and eight digital output channels. The sixteen digital input channels and sixteen digital output channels expanded by the two PCF8575 chips are each connected to a connector port. The input interface of the MCU module includes an IIC interface. The digital signals are transmitted to the MCU module through the IIC interface.

5. A multifunctional data acquisition instrument according to claim 1, characterized in that, The MCU module and the main control board transmit signals via the ModBUS protocol.

6. A multifunctional data acquisition instrument according to claim 1, characterized in that, The main control board is an embedded industrial control host based on ARM architecture, the MCU module adopts ESP32-S3 module, and the touch screen is a 7-inch MIPI screen.

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