CN210108830U

CN210108830U - Electric control system for high-temperature hydrolysis process

Info

Publication number: CN210108830U
Application number: CN201822119491.8U
Authority: CN
Inventors: 韩鹏程; 史烨弘; 李瑞华; 赵振; 李华昌; 冯先进; 杨斐; 房胜楠; 董璐
Original assignee: Cbmx Detection Technology Co Ltd
Current assignee: Beikuang Testing Technology Co ltd
Priority date: 2018-12-18
Filing date: 2018-12-18
Publication date: 2020-02-21
Anticipated expiration: 2028-12-18

Abstract

An electric control system for a high-temperature hydrolysis process mainly comprises an ARM module, an FPGA module, a parameter storage module and a terminal execution component. The upper computer sends the control parameters to the bottom ARM module through the communication interface, the ARM module stores the system operation parameters in the parameter storage module, and after the ARM module further receives a starting command of the upper computer, the ARM chip module and the FPGA chip module call corresponding execution parameters through the storage module and then execute the corresponding command on a terminal execution component. The traditional control system excessively depends on an upper computer, has poor instantaneity and universality and brings great difficulty to application personnel. The system is based on a large-scale integrated circuit system, and the algorithm is embedded into a hardware system by comprehensively using two different types of chips of ARM and FPGA, so that on one hand, the efficiency and the accuracy of hardware execution are accelerated, and on the other hand, the universality of the system is improved.

Description

Electric control system for high-temperature hydrolysis process

Technical Field

The utility model relates to an analytical instrument automatic control field especially relates to a high temperature automatic control system that hydrolysises.

Background

As experimental pretreatment equipment, the high-temperature hydrolysis device controls equipment such as a needle valve, a switch valve, an injection pump and a combustion furnace respectively through different control interfaces or control protocols by an upper computer in a traditional control mode, and the control mode is complex, poor in real-time performance and universality, brings great difficulty to application personnel, and is also not beneficial to the combined use of the high-temperature hydrolysis equipment and subsequent analysis equipment such as an ion chromatograph. The system is based on a large-scale integrated circuit system, and an algorithm is embedded into a hardware system by comprehensively using two different types of chips of ARM and FPGA, so that the efficiency and accuracy of hardware execution are improved, and meanwhile, the universality of the system is improved.

SUMMERY OF THE UTILITY MODEL

The utility model provides an electrical system for pyrohydrolysis process, mainly by the Arm module, the FPGA module, parameter storage module, and terminal executive component constitutes, the host computer passes through communication interface and sends control parameter to bottom ARM module, the ARM module is with chip parameter storage at parameter storage module, the ARM module is behind the further start order of receiving the host computer, after ARM chip module and FPGA chip module transferred corresponding executive parameter behind storage module, carry out corresponding order to terminal executive component, and simultaneously, ARM module and FPGA module in this system can read the executive information of executive module in real time, judge current execution position in real time.

The upper computer sends an interactive command to the system through a communication interface, wherein the form of the communication interface comprises but is not limited to a Universal Serial Bus (USB), a universal asynchronous receiving/sending device (UART), a transmission control protocol/internet protocol (TCPIP), a User Datagram Protocol (UDP) and a Controller Area Network (CAN).

The system can automatically run away from an upper computer, and can execute a corresponding high-temperature hydrolysis flow and cooperate with the subsequent ion chromatography work after calling related parameters in the storage module through the mutual cooperation of the FPGA module and the ARM module.

The FPGA module is used for controlling terminal execution components with high real-time requirements, and the terminal execution components include but are not limited to a steering engine and a synchronizer.

The ARM module is mainly used for controlling a flow execution terminal and comprises a switch valve, a needle valve, a combustion furnace, a two-way valve and a six-way valve, and the temperature, the states of the valves and the air pressure flow of the high-temperature hydrolysis equipment are obtained in real time.

Drawings

Fig. 1 is a schematic structural diagram of an electric control system according to an embodiment of the present invention;

fig. 2 is a schematic diagram of an ARM module according to an embodiment of the present invention;

fig. 3 is a schematic diagram of an FPGA module according to an embodiment of the present invention;

fig. 4 is a flow chart of system operating parameter modification according to an embodiment of the present invention;

fig. 5 is a flow chart of the present invention for use in a combination pyrohydrolysis apparatus and ion chromatograph.

Detailed Description

The description will be further described with reference to the accompanying drawings and examples.

The working process of the electric control system for the high-temperature hydrolysis process is briefly as follows:

an alternative embodiment is shown in figure 1: the host computer passes through communication interface (1) and sends control parameter to bottom ARM module (2), ARM module (2) are with system's operating parameter through FPGA module (3) storage in parameter storage module (4), ARM module (2) are after the further start order of receiving the host computer, ARM chip module and FPGA chip module are through the executive parameter of taking correspondence in parameter storage module (4) after, carry out corresponding order to terminal executive component (5).

In an alternative embodiment, the ARM module (2) includes a core processor (6), a board level communication interface (9), a 24V driving circuit (10), and a 5V signal isolation/driving circuit, as shown in the dashed box of fig. 2.

The system receives commands of starting \ stopping or modifying running parameters and the like through the communication interface (1), or sends the running parameters of the high-temperature hydrolysis equipment to the upper computer through the communication interface. The core processor (6) is pre-loaded with an embedded operating system, and functions include but are not limited to clock management, system control, parameter transmission and the like. The control signal generated by the core processor (6) is sent to a 24V driving circuit (10) or a 5V signal isolation/driving (8) circuit on the one hand, and a board-level communication interface (9) is designed in the system. And the 24V driving circuit (10), the 5V signal isolation/driving circuit (8) and the board-level communication interface drive the corresponding execution module to execute actions according to the type and the driving requirement of the terminal execution module (5). The board-level communication interface (9) is simultaneously responsible for communication with the FPGA module (3) in the form of SPI, RS232 and I²C。

In an alternative embodiment, the FPGA module (2) includes a communication bus (11), an FPGA chip (12), and a 5V signal isolation/driver (8), as shown in the dashed box of fig. 3.

The FPGA module (3) is mainly used for parts which have strict requirements on control time sequence in high-temperature hydrolysis equipment. FPGA chip (12) in this design communicates through communication bus (11) and ARM module (2), FPGA chip (12) can be on the one hand with system's operating parameter storage to parameter storage module (4), also can be with system's operating parameter transmission ARM module (2) simultaneously, FPGA chip is according to the parallel control signal that system's operating parameter produced in addition, through 5V signal isolation/drive (8) circuit final drive to the terminal execution module (5) that the chronogenesis required strictly.

Fig. 4 is a flow chart of system operation parameter modification according to an embodiment of the present invention. As shown in fig. 4, the method for modifying the operating parameter of the present embodiment includes:

s41, the upper computer sends a command frame, and the command frame contains the operation parameters to be modified;

s42, the ARM module analyzes the command frame;

and S43, the FPGA module stores the modified operation parameters into the parameter storage module.

Fig. 5 is a flow chart of the present invention for use in a combination pyrohydrolysis apparatus and ion chromatograph. As shown in fig. 5, the method for combining a pyrohydrolysis apparatus and an ion chromatograph in this embodiment includes:

s51, the upper computer sends an experiment flow starting command frame;

s52, the system receives the order and transfers the stored system operation parameter;

s53, the system controls each terminal execution module to run the high temperature hydrolysis experiment;

s54, sending a synchronization command to the ion chromatograph after the single pyrohydrolysis experiment is finished;

s55, circulating the high-temperature hydrolysis experiment process;

and S56, finishing the experimental process after the samples are completely finished.

The utility model provides an electrical system for high temperature hydrolysis process based on large-scale integrated circuit imbeds the hardware system with the operating parameter for the efficiency and the degree of accuracy that the hardware was carried out have increased the commonality of system simultaneously.

Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations fall within the scope defined by the appended claims.

Claims

1. An electrical control system for a pyrohydrolysis process, characterized by: the system mainly comprises an Arm module, an FPGA module, a parameter storage module and a terminal execution component, an upper computer sends control parameters to a bottom ARM module through a communication interface, the ARM module stores chip parameters in the parameter storage module, the ARM module is further connected with a starting command of the upper computer, the ARM chip module and the FPGA chip module are used for calling corresponding execution parameters after passing through the storage module, corresponding commands are executed on the terminal execution component, meanwhile, the ARM module and the FPGA module in the system can read execution information of the execution module in real time, and the current execution position is judged in real time.

2. An electrical control system for a pyrohydrolysis process according to claim 1, wherein: the interactive command is sent to the system through the upper computer through a communication interface, and the form of the communication interface comprises but is not limited to a Universal Serial Bus (USB), a universal asynchronous receiving/sending device (UART), a transmission control protocol/internet interconnection protocol (TCPIP), a User Datagram Protocol (UDP) and a Controller Area Network (CAN).

3. An electrical control system for a pyrohydrolysis process according to claim 1, wherein: the system can automatically run away from an upper computer, and can execute a corresponding high-temperature hydrolysis flow and cooperate with the subsequent ion chromatography work after calling related parameters in the storage module through the mutual cooperation of the FPGA module and the ARM module.

4. An electrical control system for a pyrohydrolysis process according to claim 1, wherein: the FPGA module is used for controlling terminal execution components with high real-time requirements, and the terminal execution components include but are not limited to a steering engine and a synchronizer.

5. An electrical control system for a pyrohydrolysis process according to claim 1, wherein: the ARM module is mainly used for controlling a flow execution terminal, including but not limited to a switch valve, a needle valve, a combustion furnace, a two-way valve and a six-way valve, and simultaneously acquiring the temperature, the states of the valves and the air pressure flow value of the high-temperature hydrolysis equipment in real time.