Intelligent acquisition device of chemical instrument

Abstract

The utility model relates to an intelligent acquisition device for a chemical instrument, which comprises an instrument controller, the output end of the instrument controller is connected with a communication module, the output end of the communication module is connected with a signal acquisition unit, the other end of the signal acquisition unit is provided with an acquisition controller, and the acquisition controller is electrically connected with a wireless communication module. The acquisition controller is in communication connection with an upper computer through the wireless communication module; the instrument further comprises a shell, the shell is detachably connected with the instrument body through a bolt, and a signal acquisition unit, an acquisition controller and a wireless communication module are arranged in the shell. The instrument comprises the communication module, the signal acquisition unit, the acquisition controller and the wireless communication module, the communication module of the instrument is connected with the signal acquisition unit, the acquisition controller acquires analog signals of the instrument and uploads the analog signals through the wireless communication module, cables are reduced, arrangement is facilitated, and communication cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical detection, in particular to an intelligent collection device for chemical instruments. Background Art

[0002] In the field of coal chemical industry, many instruments are needed to detect various variables (temperature, pressure, liquid level, flow, composition, etc.). With the development of digital circuits, automatic detection and display of variables have been realized. Most of the existing instruments are connected to the pipeline through the pipe joints on the chemical instrument, and the electromagnetic principle is used for detection.

[0003] Due to the large number of instruments and the need to collect data regularly, the collection process is relatively cumbersome. General collection methods include manual collection or transmission through RS232 and RS458 serial port modules. Manual collection and uploading to the host computer requires input, which is relatively cumbersome. Transmission through the serial port of the instrument has many serial port cables and is difficult to distinguish clearly. In addition, the interface on the host computer is limited, so the cost of realizing automatic collection is relatively high. Summary of the invention

[0004] In order to solve the problem of inconvenience in data collection of existing chemical instruments, the utility model proposes an intelligent data collection device for chemical instruments, including a communication module, a signal collection unit, a collection controller and a wireless communication module. The communication module of the instrument itself is connected with the signal collection unit, and the collection controller collects the analog signal of the instrument and uploads it through the wireless communication module, which reduces cables, facilitates setting, and reduces communication costs.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a chemical instrument intelligent data acquisition device, including an instrument body, a meter head and an instrument circuit, wherein the output end of the instrument body is connected to the instrument circuit, the instrument circuit includes an instrument controller, the output end of the instrument controller is connected to a communication module, the output end of the communication module is connected to a signal acquisition unit, the other end of the signal acquisition unit is provided with a data acquisition controller, the data acquisition controller is electrically connected to a wireless communication module, and the data acquisition controller is connected to a host computer through the wireless communication module;

[0006] It also includes a shell, which is detachably connected to the instrument body through bolts, and a signal acquisition unit, an acquisition controller and a wireless communication module are arranged inside the shell.

[0007] Further, the communication module includes one or more combinations of RS232 serial port module, RS485 serial port module and USB serial port module;

[0008] The RS232 serial port module, the RS485 serial port module and the USB serial port module all include a socket and a data line, and the socket is connected to the instrument controller and the signal acquisition unit respectively.

[0009] Use the communication socket on the instrument to connect to the signal acquisition unit to improve the adaptability of the device.

[0010] Furthermore, the signal acquisition unit comprises a filter circuit and an instrument amplifier, the output end of the filter circuit is connected to the same direction end of the instrument amplifier, and the output end of the instrument amplifier is connected to the ADC pin of the acquisition controller.

[0011] The input signal is filtered through the filter circuit, the filtered electrical signal is amplified by the instrument amplifier and then input into the acquisition controller to complete the acquisition of the detection parameters.

[0012] Furthermore, the wireless communication module includes one or more combinations of a Bluetooth module, a WIFI module, and an RFID module.

[0013] The use of wireless communication modules reduces the number of cables and sockets required, thereby reducing communication costs.

[0014] Furthermore, the acquisition controller and the instrument controller both include an MCU chip.

[0015] Furthermore, the housing includes a connecting portion and a fixing portion, the connecting portion is an N-shaped structure, the interior of the connecting portion is hollow, and a signal acquisition unit, an acquisition controller and a wireless communication module are arranged inside the connecting portion;

[0016] The fixing part is a straight line plate, and the connecting part and the fixing part are connected by bolts.

[0017] The housing is provided to protect the hardware circuit and facilitate fixation to the instrument body.

[0018] Through the above technical solution, the beneficial effects of the utility model are:

[0019] The utility model realizes wireless data collection of chemical instruments. The communication module is connected through the socket provided by the instrument controller, the output end of the communication module is connected to the signal collection unit, the other end of the signal collection unit is provided with a collection controller, the collection controller is electrically connected to the wireless communication module, and the collection controller is connected to the host computer through the wireless communication module, providing a hardware basis for the timed upload of the collected data of the chemical instrument, and reducing the cables and interfaces for easy management and maintenance, thereby reducing the data collection cost.

[0020] In addition, a housing is provided, and the housing is detachably connected to the instrument body by bolts, and the housing protects the hardware circuit. No improvement is required on the chemical instrument itself, the wiring is simple, and the stability of the chemical instrument itself is ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1This is one of the electrical schematic diagrams of an intelligent data collection device for chemical instruments in the utility model;

[0022] Figure 2 This is the second electrical schematic diagram of a chemical instrument intelligent data collection device of the utility model;

[0023] Figure 3 The utility model is a structural schematic diagram of an intelligent data collection device for chemical instruments.

[0024] Figure numbers: 1 is the instrument body, 2 is the meter head, 3 is the instrument controller, 4 is the communication module, 5 is the acquisition controller, 6 is the wireless communication module, 7 is the filter circuit, 8 is the instrument amplifier, 9 is the connecting part, and 10 is the fixing part. DETAILED DESCRIPTION

[0025] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments:

[0026] Example 1

[0027] like Figures 1 to 3 As shown, a chemical instrument intelligent data acquisition device includes an instrument body 1, a meter head 2 and an instrument circuit, wherein the output end of the instrument body 1 is connected to the instrument circuit, the instrument circuit includes an instrument controller 3, the output end of the instrument controller 3 is connected to a communication module 4, the output end of the communication module 4 is connected to a signal acquisition unit, the other end of the signal acquisition unit is provided with a data acquisition controller 5, the data acquisition controller 5 is electrically connected to a wireless communication module 6, and the data acquisition controller 5 is connected to a host computer through the wireless communication module 6;

[0028] It also includes a shell, which is detachably connected to the instrument body 1 by bolts, and a signal acquisition unit, an acquisition controller 5 and a wireless communication module 6 are arranged inside the shell.

[0029] Preferably, the communication module 4 includes one or more combinations of RS232 serial port module, RS485 serial port module and USB serial port module;

[0030] The RS232 serial port module, the RS485 serial port module and the USB serial port module all include a socket and a data line, and the socket is connected to the instrument controller 3 and the signal acquisition unit respectively.

[0031] Preferably, the signal acquisition unit comprises a filter circuit 7 and an instrument amplifier 8, the output end of the filter circuit 7 is connected to the same direction end of the instrument amplifier 8, and the output end of the instrument amplifier 8 is connected to the ADC pin of the acquisition controller 5.

[0032] Preferably, the wireless communication module 6 includes one or a combination of a Bluetooth module, a WIFI module, and an RFID module.

[0033] Preferably, the acquisition controller 5 and the instrument controller 3 both include MCU chips.

[0034] Preferably, the housing includes a connecting portion 9 and a fixing portion 10, the connecting portion 9 is an n-shaped structure, the inside of the connecting portion 9 is hollow, and a signal acquisition unit, an acquisition controller 5 and a wireless communication module 6 are arranged inside the connecting portion 9;

[0035] The fixing part 10 is a straight line plate, and the connecting part 9 and the fixing part 10 are connected by bolts.

[0036] In this embodiment, the communication module 4 adopts an RS232 serial port module, the instrument amplifier 8 adopts an AD8221 chip, the instrument controller 3 is an STC51 single-chip microcomputer, the acquisition controller 5 is an STM32 single-chip microcomputer, and the wireless communication module 6 adopts a WIFI module, specifically a WGM110 chip.

[0037] First, connect the filter circuit 7 to the instrument controller 3 through the RS232 serial port module, then fit the curved surface of the connecting part 9 to the outer curved surface of the vertical section of the instrument body 1, and then fix the fixing part 10 and the connecting part 9 with bolts, so that the fixing part 10 and the connecting part 9 clamp the instrument body 1.

[0038] During operation, the instrument circuit collects detection parameters, and the instrument amplifier 8 transmits the collected parameters to the outside through the communication module 4. After being filtered by the filter circuit 7, it is transmitted to the collection controller 5 through the instrument amplifier 8. The collection controller 5 uploads the collected parameters to the host computer through the wireless communication module 6 on time.

[0039] The embodiments described above are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, any equivalent changes or modifications made based on the structures, features and principles described in the patent scope of the present invention should be included in the patent application scope of the present invention.

Claims

1. A chemical instrument intelligent data collection device, comprising an instrument body (1), a meter head (2) and an instrument circuit, wherein the output end of the instrument body (1) is connected to the instrument circuit, and the instrument circuit comprises an instrument controller (3), characterized in that: The output end of the instrument controller (3) is connected to a communication module (4), the output end of the communication module (4) is connected to a signal acquisition unit, the other end of the signal acquisition unit is provided with an acquisition controller (5), the acquisition controller (5) is electrically connected to a wireless communication module (6), and the acquisition controller (5) is communicatively connected to a host computer via the wireless communication module (6); It also comprises a shell, which is detachably connected to the instrument body (1) via bolts, and a signal acquisition unit, an acquisition controller (5) and a wireless communication module (6) are arranged inside the shell.

2. The intelligent data collection device for chemical instruments according to claim 1 is characterized in that: The communication module (4) comprises one or a combination of a RS232 serial port module, a RS485 serial port module and a USB serial port module; The RS232 serial port module, the RS485 serial port module and the USB serial port module all comprise a socket and a data line, and the sockets are respectively connected to the instrument controller (3) and the signal acquisition unit.

3. The intelligent data collection device for chemical instruments according to claim 1 is characterized in that: The signal acquisition unit comprises a filter circuit (7) and an instrument amplifier (8), the output end of the filter circuit (7) is connected to the same-direction end of the instrument amplifier (8), and the output end of the instrument amplifier (8) is connected to an ADC pin of an acquisition controller (5).

4. The intelligent data collection device for chemical instruments according to claim 1, characterized in that: The wireless communication module (6) comprises a Bluetooth module, a WIFI module, an RFID module or a combination of one or more thereof.

5. The intelligent data collection device for chemical instruments according to claim 1 is characterized in that: The acquisition controller (5) and the instrument controller (3) both include an MCU chip.

6. The intelligent data collection device for chemical instruments according to claim 1, characterized in that: The housing comprises a connecting portion (9) and a fixing portion (10); the connecting portion (9) is an N-shaped structure; the interior of the connecting portion (9) is hollow; a signal acquisition unit, an acquisition controller (5) and a wireless communication module (6) are arranged inside the connecting portion (9); The fixing portion (10) is a straight-line plate body, and the connecting portion (9) and the fixing portion (10) are connected by bolts.

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