Reinforced small universal intelligent controller

Abstract

The invention provides a reinforced small universal intelligent controller, and relates to the technical field of intelligent controllers. The reinforced small-sized universal intelligent controller comprises a power supply module and a mainboard, a first output end of the power supply module is connected with an input end of the mainboard and is used for supplying power to the mainboard; the main board comprises a field programmable gate array (FPGA), a first main central processing unit (CPU), an acquisition circuit, an output circuit and a controller area network (CAN) communication circuit; the acquisition circuit, the output circuit and the first CPU are connected with the FPGA through a serial peripheral interface (SPI); and the CAN communication circuit is connected with the first CPU through a CAN bus. According to the reinforced small-sized universal intelligent controller provided by the invention, an automatic control function of a plurality of thermal parameters can be realized by only adopting one reinforced small-sized intelligent controller, and the convenience of automatic control is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent controllers, and in particular to a reinforced small-sized universal intelligent controller. Background Art

[0002] Intelligent controllers are important control devices. Taking thermal control as an example, they are a key link in automatic control. By collecting thermal parameters such as temperature, pressure, and water level, and performing automatic control operations such as proportional integral derivative (PID) control, intelligent controllers output control signals for regulating valves, variable frequency pumps, and other systems, thereby achieving automatic control of thermal parameters such as temperature, pressure, and water level.

[0003] Currently, programmable logic controllers (PLCs) are often used to implement these automatic control functions. These modules, including control, acquisition, output, and communication modules, are required to automatically control a single parameter. These modules are bulky and costly. In environments like marine environments, where space is limited, PLCs have certain limitations. Furthermore, PLCs often only display their operating status through indicators, requiring connection to a computer or engineering station to view parameter status, making them inconvenient. Summary of the Invention

[0004] The present invention provides a reinforced small-sized universal intelligent controller, which is used to solve the technical problem of poor convenience in use of the intelligent controller in the prior art.

[0005] The present invention provides a reinforced small universal intelligent controller, comprising a power supply module and a mainboard; The first output terminal of the power supply module is connected to the input terminal of the mainboard, and is used to supply power to the mainboard; The mainboard includes a field programmable gate array (FPGA), a first main central processing unit (CPU), an acquisition circuit, an output circuit, and a controller area network (CAN) communication circuit; the acquisition circuit, the output circuit, and the first CPU are all connected to the FPGA via a serial peripheral interface (SPI); and the CAN communication circuit is connected to the first CPU via a CAN bus.

[0006] In some embodiments, the power supply circuit includes a transformer, a rectifier, a filter, and a power conversion module; The input end of the transformer is connected to the AC power supply, the output end of the transformer is connected to the input end of the rectifier; the output end of the rectifier is connected to the input end of the filter; the output end of the filter is connected to the input end of the power conversion module.

[0007] In some embodiments, the power conversion module is used to convert a 24V DC power supply into a 5V DC power supply and a 3V DC power supply respectively; the 5V DC power supply is output through the first output end of the power supply module, and the 3V DC power supply is output through the second output end of the power supply module.

[0008] In some embodiments, the CAN communication circuit includes a plurality of CAN communication sub-circuits connected in parallel; The input end of the CAN communication sub-circuit is connected to the first output end of the first CPU; the CAN communication sub-circuit is used to output the output parameters of the acquisition circuit and / or the output circuit.

[0009] In some embodiments, the reinforced small universal intelligent controller further comprises a display panel; The first input terminal of the display panel is connected to the second output terminal of the power supply module; the second input terminal of the display panel is connected to the output terminal of the main board.

[0010] In some embodiments, the display panel includes a second CPU, a liquid crystal display, and a knob; The input end of the second CPU is connected to the second output end of the first CPU; the first output end of the second CPU is connected to the liquid crystal screen; and the second output end of the second CPU is connected to the knob.

[0011] In some embodiments, the reinforced small universal intelligent controller further comprises a housing; The liquid crystal screen and the knob are arranged on the front panel of the housing.

[0012] In some embodiments, the front panel of the housing is further provided with a power switch, a debugging interface, and a handle; The power switch is used to control the power supply and power off of the reinforced small universal intelligent controller; the debugging interface is connected to a computer, and the computer stores a control CPU program and a display CPU program.

[0013] In some embodiments, the back panel of the housing is provided with a first aviation plug, a second aviation plug, and a third aviation plug; The first aviation plug is connected to a power source; the second aviation plug is used for inputting signals; and the third aviation plug is used for outputting signals.

[0014] In some embodiments, the acquisition circuit includes a current acquisition circuit and a switch value acquisition circuit, and the output circuit includes a current output circuit and a switch value output circuit.

[0015] The reinforced small-scale universal intelligent controller provided by the present invention includes a power supply module, a mainboard, and a display panel. The first output terminal of the power supply module is connected to the input terminal of the mainboard for powering the mainboard. The mainboard includes a field programmable gate array (FPGA), a first main central processing unit (CPU), an acquisition circuit, an output circuit, and a controller area network (CAN) communication circuit. The acquisition circuit, the output circuit, and the first CPU are all connected to the FPGA via a serial peripheral interface (SPI). The CAN communication circuit is connected to the first CPU via a CAN bus. Using only one reinforced small-scale intelligent controller, multiple thermal parameters can be automatically controlled. The controller is compact, portable, and easy to operate, improving the convenience of automatic control. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is one of the structural diagrams of the reinforced small universal intelligent controller provided by the present invention.

[0018] Figure 2 This is a circuit schematic diagram of the reinforced small universal intelligent controller provided by the present invention.

[0019] Figure 3 This is the second structural diagram of the reinforced small universal intelligent controller provided by the present invention.

[0020] Figure 4 It is a three-view drawing of the reinforced small universal intelligent controller provided by the present invention.

[0021] Figure 5 This is a dimensional diagram of the reinforced small universal intelligent controller provided by the present invention.

[0022] Reference numerals: 100: power supply module; 110: mainboard. DETAILED DESCRIPTION

[0023] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0024] Figure 1 This is one of the structural diagrams of the reinforced small universal intelligent controller provided by the present invention, such as Figure 1 As shown, the present invention provides a reinforced small universal intelligent controller, which includes a control and power supply module and a mainboard; The first output terminal of the power supply module is connected to the input terminal of the mainboard, and is used to supply power to the mainboard; The mainboard includes a field programmable gate array (FPGA), a first main central processing unit (CPU), an acquisition circuit, an output circuit, and a controller area network (CAN) communication circuit; the acquisition circuit, the output circuit, and the first CPU are all connected to the FPGA via a serial peripheral interface (SPI); and the CAN communication circuit is connected to the first CPU via a CAN bus.

[0025] Specifically, the internal modules of the reinforced small universal intelligent controller include a power supply module and a mainboard, etc.

[0026] The input end of the power supply module is connected to the AC power supply, and the first output end of the power supply module is connected to the input end of the mainboard, thereby supplying power to the mainboard.

[0027] The main board includes a Field Programmable Gate Array (FPGA), a first main central processing unit (CPU), an acquisition circuit, an output circuit, and a controller area network (CAN) communication circuit.

[0028] The acquisition circuit, output circuit, and first CPU are all connected to the FPGA via a serial peripheral interface (SPI). The acquisition circuit and output circuit communicate with the FPGA via the SPI serial communication bus, and the first CPU communicates with the FPGA via SPI.

[0029] The input end of the CAN communication circuit is connected to the first CPU.

[0030] The main control program runs in the first CPU, which drives the acquisition circuit and output circuit through FPGA to realize the acquisition and output of analog and switching quantities.

[0031] The reinforced small-scale universal intelligent controller provided in the embodiments of this application features data acquisition and output, CAN communication, and other functions, enabling automatic control of multiple thermal parameters. It exhibits good environmental adaptability and resistance to electromagnetic interference, making it suitable for on-site automatic control in complex industrial environments. Furthermore, the controller is portable and easy to operate, enhancing the convenience of automatic control. Furthermore, the embodiments of this application isolate the main control program from the underlying data acquisition and output chips. Therefore, if the related chips experience production outages, the main control program is not affected, only the FPGA general program.

[0032] In some embodiments, the acquisition circuit includes a current acquisition circuit and a switch value acquisition circuit, and the output circuit includes a current output circuit and / or a switch value output circuit.

[0033] Specifically, the reinforced small universal intelligent controller integrates the current acquisition circuit, the switch quantity acquisition circuit, the current output circuit and / or the switch quantity output circuit into one intelligent controller. It has multiple functions such as current acquisition, current output, switch quantity acquisition and / or switch quantity output. It can conveniently view multiple parameters and does not require multiple PCL modules to achieve multiple functions. The intelligent controller has the advantages of small size and low cost, and can be flexibly applied and adapted to various scenarios.

[0034] In some embodiments, the power supply circuit includes a transformer, a rectifier, a filter, and a power conversion module; The input end of the transformer is connected to the AC power supply, the output end of the transformer is connected to the input end of the rectifier; the output end of the rectifier is connected to the input end of the filter; the output end of the filter is connected to the input end of the power conversion module.

[0035] Specifically, Figure 2 This is a circuit diagram of the reinforced small universal intelligent controller provided by the present invention, such as Figure 2 As shown, the power supply circuit includes a transformer, a rectifier, a filter and a power conversion module (i.e., DC / DC in the figure).

[0036] The input end of the transformer is connected to the AC power supply, the output end of the transformer is connected to the input end of the rectifier, the output end of the rectifier is connected to the input end of the filter, and the output end of the filter is connected to the input end of the power conversion module.

[0037] The AC220V power supply (i.e. 220 volt AC power supply) is output as DC24V power supply (i.e. 24 volt DC power supply) after voltage reduction, rectification and filtering, and then the power is converted through the DC / DC module.

[0038] In some embodiments, the power conversion module is used to convert a 24V DC power supply into a 5V DC power supply and a 3V DC power supply respectively; the 5V DC power supply is output through the first output end of the power supply module, and the 3V DC power supply is output through the second output end of the power supply module.

[0039] Specifically, if Figure 2 As shown, the power supply circuit output is divided into two paths, each outputting a different DC power source. The power conversion module in the power supply circuit is used to convert the 24V DC power source into a 5V DC power source and a 3V DC power source. The 5V DC power source is output through the first output terminal of the power supply module and connected to the mainboard, thereby providing 5V DC power to the mainboard; the 3V DC power source is output through the second output terminal of the power supply module and connected to the display panel, thereby providing 3V DC power to the display panel.

[0040] In some embodiments, the CAN communication circuit includes a plurality of CAN communication sub-circuits connected in parallel; The input end of the CAN communication sub-circuit is connected to the first output end of the first CPU; the CAN communication sub-circuit is used to output the output parameters of the acquisition circuit and / or the output circuit.

[0041] Specifically, the CAN communication circuit may include a plurality of CAN communication sub-circuits connected in parallel. Figure 2 As shown, the CAN communication circuit includes two parallel CAN communication sub-circuits, the input end of the CAN communication sub-circuit is connected to the first output end of the first CPU, and the CAN communication sub-circuit is used to output the output parameters of the acquisition circuit and / or the output circuit.

[0042] The reinforced small universal intelligent controller provided in the embodiment of the present application has a multi-channel redundant CAN communication function set in the main board, and can collect, output and upload intermediate variables of the main control program to external devices through CAN communication.

[0043] In some embodiments, the reinforced small universal intelligent controller further comprises a display panel; The first input terminal of the display panel is connected to the second output terminal of the power supply module; the second input terminal of the display panel is connected to the output terminal of the main board.

[0044] Specifically, the reinforced small universal intelligent controller also includes a display panel, the first input end of the display panel is connected to the second output end of the power supply module to obtain power; the second input end of the display panel is connected to the output end of the main board, so that the collection, output and intermediate variables and other information of the main control program can be displayed for the user to view the controller status.

[0045] In some embodiments, the display panel includes a second CPU, a liquid crystal display, and a knob; The input end of the second CPU is connected to the second output end of the first CPU; the first output end of the second CPU is connected to the liquid crystal screen; and the second output end of the second CPU is connected to the knob.

[0046] Specifically, the display panel includes a second CPU, a liquid crystal screen, and a knob.

[0047] The input end of the second CPU is connected to the second output end of the first CPU, and the second CPU communicates with the first CPU or the mainboard via an RS232 serial port.

[0048] A first output terminal of the second CPU is connected to the LCD screen, and a second output terminal of the second CPU is connected to the knob. The second CPU controls the display of information such as acquisition, output, and intermediate variables. The user can observe the status of all input and output parameters on the LCD screen, and can display intermediate parameters as needed. The user can turn pages on the LCD screen by operating the knob.

[0049] In some embodiments, the reinforced small universal intelligent controller further comprises a housing; The liquid crystal screen and the knob are arranged on the front panel of the housing.

[0050] Specifically, the reinforced small universal intelligent controller further comprises a housing, which is a metal housing. The liquid crystal screen and the knob in the display panel can be arranged on the front panel of the housing to facilitate user observation and operation.

[0051] In some embodiments, the front panel of the housing is further provided with a power switch, a debugging interface, and a handle; The power switch is used to control the power supply and power off of the reinforced small universal intelligent controller; the debugging interface is connected to a computer, and the computer stores a control CPU program and a display CPU program.

[0052] Specifically, Figure 3 This is the second structural diagram of the reinforced small universal intelligent controller provided by the present invention, such as Figure 3 As shown in the figure, the front panel of the housing includes a liquid crystal display, an operating knob, a debugging interface, a power switch, a handle, etc.

[0053] The intelligent controller can be powered on and off by the power switch. The front panel is equipped with a debugging interface, which can be connected to a computer to realize the control and display of CPU program download functions.

[0054] In some embodiments, the back panel of the housing is provided with a first aviation plug, a second aviation plug, and a third aviation plug; The first aviation plug is connected to a power source; the second aviation plug is used for inputting signals; and the third aviation plug is used for outputting signals.

[0055] Specifically, Figure 4 This is a three-view diagram of the reinforced small universal intelligent controller provided by the present invention, such as Figure 4 As shown, the intelligent controller is installed and fixed by two upper and lower screws. The back panel of the shell is provided with multiple aviation plugs, among which the first aviation plug is connected to the power supply to power the reinforced small universal intelligent controller, the second aviation plug is used to input external signals, and the third aviation plug is used to output signals to external devices.

[0056] Figure 5 This is the external dimensions of the reinforced small universal intelligent controller provided by the present invention, such as Figure 5 As shown, the external dimensions (width×height×depth) of the intelligent controller can be 60mm×160mm×352.5mm.

[0057] The reinforced small universal intelligent controller provided in the embodiment of the present application adopts two independent circuit boards and CPUs to realize the mainboard control function and the display board display function respectively. The two exchange data through the serial port, thereby isolating the main program with special functions from the display program with general functions, realizing the modularization of software and hardware functions. When components are discontinued or upgraded, the original design can be retained to the maximum extent, and only adaptive adjustments are made to related components and programs, which is conducive to the rapid realization of product software and hardware upgrades.

[0058] It should be noted that the division of units / modules in the above-mentioned embodiments of the present invention is schematic and is merely a logical functional division. In actual implementation, other division methods may be used. In addition, the functional units in the various embodiments of the present application may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The above-mentioned integrated units may be implemented in the form of hardware or software functional units.

[0059] It should also be noted that the terms "first," "second," and the like are used herein to distinguish similar objects, and are not intended to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, such that the embodiments of the present invention can be implemented in an order other than that illustrated or described herein. Furthermore, the terms "first" and "second" generally distinguish objects of the same type, and do not limit the number of objects. For example, the first object may be one or more.

[0060] In this disclosure, the term "and / or" describes the relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. The character " / " generally indicates that the associated objects are in an "or" relationship.

[0061] In the present invention, the term "plurality" refers to two or more than two, and other quantifiers are similar to it.

[0062] Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such changes and modifications fall within the scope of the claims and their equivalents, the present invention is intended to include such changes and modifications.

Claims

1. A reinforced small universal intelligent controller, characterized in that: Including control power supply module and main board; The first output terminal of the power supply module is connected to the input terminal of the mainboard, and is used to supply power to the mainboard; The mainboard includes a field programmable gate array (FPGA), a first main central processing unit (CPU), an acquisition circuit, an output circuit, and a controller area network (CAN) communication circuit; the acquisition circuit, the output circuit, and the first CPU are all connected to the FPGA via a serial peripheral interface (SPI); and the CAN communication circuit is connected to the first CPU via a CAN bus.

2. The reinforced small universal intelligent controller according to claim 1, characterized in that: The power supply circuit includes a transformer, a rectifier, a filter and a power conversion module; The input end of the transformer is connected to the AC power supply, the output end of the transformer is connected to the input end of the rectifier; the output end of the rectifier is connected to the input end of the filter; the output end of the filter is connected to the input end of the power conversion module.

3. The reinforced small universal intelligent controller according to claim 2, characterized in that: The power conversion module is used to convert a 24V DC power supply into a 5V DC power supply and a 3V DC power supply respectively; the 5V DC power supply is output through the first output end of the power supply module, and the 3V DC power supply is output through the second output end of the power supply module.

4. The reinforced small universal intelligent controller according to claim 1, characterized in that: The CAN communication circuit includes a plurality of CAN communication sub-circuits connected in parallel; The input end of the CAN communication sub-circuit is connected to the first output end of the first CPU; the CAN communication sub-circuit is used to output the output parameters of the acquisition circuit and / or the output circuit.

5. The reinforced small universal intelligent controller according to claim 1, characterized in that: The reinforced small universal intelligent controller also includes a display panel; The first input terminal of the display panel is connected to the second output terminal of the power supply module; the second input terminal of the display panel is connected to the output terminal of the main board.

6. The reinforced small universal intelligent controller according to claim 5, characterized in that: The display panel includes a second CPU, an LCD screen and a knob; The input end of the second CPU is connected to the second output end of the first CPU; the first output end of the second CPU is connected to the liquid crystal screen; and the second output end of the second CPU is connected to the knob.

7. The reinforced small universal intelligent controller according to claim 6, characterized in that: The reinforced small universal intelligent controller further includes a housing; The liquid crystal screen and the knob are arranged on the front panel of the housing.

8. The reinforced small universal intelligent controller according to claim 7, characterized in that: The front panel of the housing is also provided with a power switch, a debugging interface and a handle; The power switch is used to control the power supply and power off of the reinforced small universal intelligent controller; the debugging interface is connected to a computer, and the computer stores a control CPU program and a display CPU program.

9. The reinforced small universal intelligent controller according to claim 7, characterized in that: The back plate of the housing is provided with a first aviation plug, a second aviation plug and a third aviation plug; The first aviation plug is connected to a power source; the second aviation plug is used for inputting signals; and the third aviation plug is used for outputting signals.

10. The reinforced small universal intelligent controller according to claim 1, characterized in that: The acquisition circuit includes a current acquisition circuit and a switch value acquisition circuit, and the output circuit includes a current output circuit and a switch value output circuit.

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