CN113703538A

CN113703538A - Multi-interface computer control device

Info

Publication number: CN113703538A
Application number: CN202110942571.7A
Authority: CN
Inventors: 张军; 邵流河; 徐安舒; 陈德彬; 谢杰峰
Original assignee: Shenzhen Eware Information Technology Co ltd
Current assignee: Shenzhen Eware Information Technology Co ltd
Priority date: 2021-08-17
Filing date: 2021-08-17
Publication date: 2021-11-26

Abstract

The invention relates to a multi-interface computer control device, which is characterized by comprising: a host assembly, including a base plate, a core board and an input and output board, the core board and the input and output board being arranged on the base board; The host components are electrically connected. By setting the host assembly, it includes a base plate, a core board and an input and output board, and the core board and the input and output board are arranged on the base plate; the display assembly is electrically connected to the host assembly; The controlled equipment has strong control ability, friendly human-computer interaction interface, diversified interfaces and multiple functions, and can be widely used in the field of large-scale computer control.

Description

Multi-interface computer control device

Technical Field

The invention relates to the technical field of computer control, in particular to a multi-interface computer control device.

Background

The computer control system is a system for realizing automatic control of the production process by utilizing a computer (a singlechip, an ARM, a PLC, a PC, an industrial personal computer and the like). A computer control system generally includes an I/0 device, a host, and a communication device. The host computer is composed of a CPU, a memory and a man-machine interface circuit, and is the core of a computer control system. The I/O equipment is used for inputting/outputting analog signals, issuing control commands and the like; and the communication equipment is used for connecting a plurality of computers or equipment to form a computer communication network. The computer control system carries out real-time data acquisition, namely, the controlled quantity from the measurement transmitting device is detected and input; carrying out real-time control decision, analyzing and processing the collected controlled quantity, and deciding the control action to be taken according to the determined control rule; and (4) performing real-time control output, and sending a control signal to the actuating mechanism in time according to the control decision to complete a control task and the like.

The existing computer control device has simple interface and simpler control, and is difficult to meet the increasing requirements of multiple interfaces.

Disclosure of Invention

The present invention is to solve the technical problem that the existing computer control device has simple interface and simple control, and is difficult to meet the increasing multi-interface requirement, and aiming at the above-mentioned defects of the prior art, the present invention provides a multi-interface computer control device, comprising:

the host computer assembly comprises a bottom plate, a core board and an input/output board, wherein the core board and the input/output board are arranged on the bottom plate;

and the display component is electrically connected with the host component.

In the multi-interface computer control device, the bottom plate is provided with a power supply rectifying circuit and an input/output signal processing circuit, a network signal driving and VGA signal amplifying circuit is provided between the core plate and the input/output plate, and the PCIE bus of the core plate is expanded to realize serial communication and CAN bus communication with the outside.

In the multi-interface computer control device of the present invention, the core board is provided with a chipset and a memory rack.

In the multi-interface computer control device of the invention, the display component comprises a touch screen, a liquid crystal display screen and an extended USB interface.

In the multi-interface computer control device, a display control IO board, a key board and a USB board are loaded in the display assembly, and X1, X2 and X3 loaded by the display control IO board are used for communicating with a host; the aviation plug interfaces X4 and X5 are directly communicated with the launching equipment of the aviation plug interface of the vehicle-mounted rocket gun.

In the multi-interface computer control device, the display assembly is provided with an LED screen control communication interface, the input and output board is provided with an RS232 serial port, an RS422 interface, a VGA interface and a USB interface, the RS232 serial port and the VGA interface are communicated with the LED screen control communication interface through an aerial plug interface X2, and the USB interface is communicated with an IKey keyboard and a USB interface through an aerial plug interface X2; and the RS232 serial port and the RS422 interface are in serial port communication with the vehicle-mounted equipment through the aerial plug interface X14 and the aerial plug interface X12 respectively.

In the multi-interface computer control device of the present invention, the core board is provided with a processor, and the processor is provided with a PCIE communication bus.

In the multi-interface computer control device, the bottom plate is provided with a serial port driving chip, an FPGA and a CAN module, and the serial port driving chip, the FPGA and the CAN module are electrically connected.

In the multi-interface computer control device of the invention, the FPGA is any one of XC6SLX45T, WT588D-20Ss, HT1621B, DRV8806, AIP1629B, DRV886OPWR and AiP 1612.

In the multi-interface computer control device of the present invention, the serial driver chip is any one of CH340T, CH340C, and CH 340G.

The multi-interface computer control device has the following beneficial effects: the host computer assembly comprises a bottom plate, a core plate and an input/output plate, wherein the core plate and the input/output plate are arranged on the bottom plate; the display component is electrically connected with the host component; by arranging multiple interfaces, the system has strong control capability on controlled equipment outside the system, is friendly to a human-computer interaction interface, has diversified interfaces and multiple functions, and can be generally applied to the field of large-scale computer control.

Drawings

Various other advantages and benefits of the present invention will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. It is obvious that the drawings described below are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

The invention will be further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a schematic structural diagram of a multi-interface computer control device according to the present invention;

FIG. 2 is a front view of a multi-interface computer control apparatus of the present invention;

FIG. 3 is a side view of a multi-interface computer control apparatus of the present invention;

FIG. 4 is a logic diagram of a display module of the multi-interface computer control apparatus according to the present invention;

FIG. 5 is a logic block diagram of a host assembly in the multi-interface computer control apparatus of the present invention;

FIG. 6 is an expanded block diagram of an FPGA in the multi-interface computer control device according to the present invention.

Detailed Description

The technical solutions in the embodiments of the present application are clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the described embodiments are merely a few embodiments of the present application and not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without any creative effort belong to the protection scope of the present application.

The multi-interface computer control device provided by the embodiment of the application can be applied to various server terminals and terminals. The server-side and terminal devices include, but are not limited to, personal computers, server computers, handheld or laptop devices, mobile devices (such as mobile phones, tablet computers, PDAs, etc.), consumer electronics devices, vehicle computers, televisions, and other terminal devices with display screens.

FIG. 1 is a schematic structural diagram of a multi-interface computer control device according to the present invention; FIG. 2 is a front view of a multi-interface computer control apparatus of the present invention; FIG. 3 is a side view of a multi-interface computer control apparatus of the present invention. As shown in fig. 1 to 3, a multi-interface computer control device according to a first embodiment of the present invention includes:

the host computer assembly 10 comprises a bottom plate 11, a core plate 12 and an input/output plate 13, wherein the core plate 12 and the input/output plate 13 are arranged on the bottom plate 11;

and a display assembly 20 electrically connected to the host assembly 10. The keyboard lock catch 30 is used for locking the keyboard, and facilitates the position fixing of the keyboard. The movable angle alpha between the keyboard and the host machine component 10 is 0-120 degrees, so that the keyboard can flexibly rotate conveniently.

The bottom plate 11 is provided with a power supply rectifying circuit and an input/output signal processing circuit, a network signal driving and VGA signal amplifying circuit is provided between the core plate 12 and the input/output plate 13, and the communication with an external serial port and a CAN bus is realized by expanding a PCIE bus of the core plate. The power supply rectifying circuit is a circuit for converting alternating current electric energy into direct current electric energy. The circuit in the prior art can be adopted and can be composed of a transformer, a main rectifier circuit, a filter and the like. The main circuit is composed of silicon rectifier diode and thyristor. The filter is connected between the main circuit and the load and is used for filtering alternating current components in the pulsating direct current voltage. Whether the transformer is arranged or not depends on the specific situation. The transformer is used for matching the alternating current input voltage and the direct current output voltage and electrically isolating the alternating current power grid from the rectifying circuit. The rectifying circuit is used for converting alternating current with lower voltage output by the alternating current voltage reduction circuit into unidirectional pulsating direct current, namely the rectifying process of the alternating current, and mainly comprises rectifying diodes. The voltage after passing through the rectifier circuit is not an alternating voltage but a mixed voltage containing a direct voltage and an alternating voltage. The VGA signal amplifying circuit can adopt a circuit commonly used in the prior art, and adopts an amplification principle, or amplifies a signal at a sending end, or amplifies a signal attenuated at a receiving end. After the VGA video cable is used as a transmission medium, the equipment amplified by the sending end can transmit VGA video signals of a computer for dozens of meters.

The core board 12 is provided with a chipset and a memory rack. Memory banks are placed on the memory racks. The Chipset (Chipset) is the core component of the motherboard, the motherboard Chipset almost determines all functions of the motherboard, wherein the type of the CPU, the system bus frequency of the motherboard, the type, the capacity and the performance of the memory, and the specification of the graphics card slot are determined by the north bridge chip in the Chipset; the type and number of the expansion slots, the type and number of the expansion interfaces (such as USB2.0/1.1, IEEE1394, serial port, parallel port, VGA output interface of notebook), etc. are determined by the south bridge of the chipset. Some chipsets also determine the display performance and audio playback performance of the computer system due to the functions of 3D accelerated display (integrated display chip), AC'97 sound decoding, and the like. The desktop chipset requires strong performance, good compatibility, interchangeability and expansibility, and has the highest requirement on cost performance, and the upgradability of a user in a certain time is properly considered, and the expansibility is the highest among the three.

FIG. 4 is a logic diagram of a display module of the multi-interface computer control device according to the present invention. As shown in fig. 4, the display assembly 20 includes a touch screen, a liquid crystal display, and an extended USB interface. If a display control IO board, a key board and a USB board are carried in the display module 20, the X1, X2 and X3 loaded by the display control IO board are used for communication with the host; the aviation plug interfaces X4 and X5 are directly communicated with the launching equipment of the aviation plug interface of the vehicle-mounted rocket gun. The display assembly 20 is provided with an LED screen control communication interface, the input and output board is provided with an RS232 serial port, an RS422 interface, a VGA interface and a USB interface, the RS232 serial port and the VGA interface are communicated with the LED screen control communication interface through an aerial plug interface X2, and the USB interface is communicated with an IKey keyboard and a USB interface through an aerial plug interface X2; and the RS232 serial port and the RS422 interface are in serial port communication with the vehicle-mounted equipment through the aerial plug interface X14 and the aerial plug interface X12 respectively. The embedded motherboard COMe module, COM Express, is the form factor of a modular Computer (COM), is a highly integrated and compact PC, and can be used for design applications like an integrated circuit package. Each COM Express module integrates core CPU and memory functions, PC/AT general I/O, USB, audio, graphics (PEG) and Ethernet. All I/O signals are mapped to two high density, low profile connectors at the bottom of the module. COM Express employs a sandwich-based approach. COM modules plug into a backplane that is typically customized for the application.

The display component host interface can be a serial port, and the controller is PenMount 6000. The panel keyboard is equipped with 6 metal keyboard positions: POWER key-control switch LCD screen; PLUS bond: displaying a key representing a signal increment in an OSD menu; MINUS bond: displaying a key indicating signal reduction in the OSD menu; MENU bond: OSD main menu; EXIT key: closing an OSD menu; RESET key: the computer control apparatus of the present invention is reset. The rear panel I/O interface includes 5 aircraft connectors X1, X2, X3, X4, X5. The front panel is provided with 1 key switch-RS KS64.200 (825-. The lower flip panel is a reinforced American keyboard. The isolated power supply can be 24V power supply, and can be converted into 12V, 5V, 3.3V and 1.2V direct current for other modules after passing through DC/DC.

FIG. 5 is a logic block diagram of the host components of the multi-interface computer control apparatus according to the present invention. As shown in fig. 5, the aviation plug interface X3 is connected to the VGA interface liquid crystal driver board, and 12V dc is supplied between the two boards. The VGA interface liquid crystal driving board is connected with the liquid crystal panel through LVDS wires. The VGA interface liquid crystal drive board is also provided with an OSD key. The liquid crystal panel is also provided with a resistance type touch screen. And a USB extender is arranged between the aviation plug interface X2 and the USB connector. The navigation plug interface X2 is provided with a host key which is connected with an external mouse keyboard through a USB extender. The aviation plug interface X1, the aviation plug interface X4 and the aviation plug interface X5 can be interconnected to control the switch indicator light. The host assembly is provided with: the processor is

Core^TMi7-3517UE (2x1.70GHz, 17W); the VGA interface can increase the signal amplification function and meet the requirement of field remote communication; ether typeThe network port is a 1-path 10/100M industrial Ethernet; the USB interface is 6 USB2.0 and 3.0 compatible interfaces; 2 display screen output interfaces; 2 host output interfaces; 1 keyboard mouse; 1 USB is converted into RS233 to be connected with a touch screen (the touch screen control panel can also use a USB interface); serial port: 1 path of RS422 serial port, 1 path of RS232 with flow control, and 1 path of RS232 connected with the touch screen; and 3 paths of serial ports adopt optical coupling isolation to support a synchronous mode and an asynchronous mode. The core board 12 is provided with a processor, which is provided with a PCIE communication bus. The bottom plate 11 is provided with a serial port driving chip, an FPGA and a CAN module, and the serial port driving chip, the FPGA and the CAN module are electrically connected. The serial driver chip may be any one of CH340T, CH340C, and CH 340G.

AD channel: the analog quantity input (A/D acquisition input) channel is more than or equal to 50 channels (actually used 46 channels); and the number of the AD channels is 46. The highest sampling frequency is 1ksps, 16-bit differential input is realized, and channels are isolated from each other. Collecting input voltage: 0V to + 10V. Each path of output isolation protection is 2500 VDC; the response time of the output isolator is less than or equal to 3 ms; the output voltage is input VCC voltage, and the voltage value is 5 VDC-40 VDC; each path of output current is more than or equal to 200 mA; the input adopts optical isolation, and the isolation voltage is 2500 VDC; the response time of the input optical isolator is less than or equal to 150 mu s; overvoltage protection: 70 VDC; when the voltage of the input end and the voltage of the reference point (COM) end are more than 10V, the logic is judged to be high.

A CAN module: the 3 paths support CAN2.0B protocol, the highest transmission speed is 1M/S, and the two paths are isolated from each other. The frame format of data transmission adopts standard frame, adopts single filtering mode, possesses programmable interface, and can modify communication protocol parameter by means of said programmable interface. The switch of 3 CAN ports CAN select whether to access the terminal matching resistor, and the default is to access the terminal matching resistor (using a jumper switch).

IO channel: the number of Digital Output (DO) channels is more than or equal to 140 (124 actually used), and the number of Digital Input (DI) channels is more than or equal to 10 (4 actually used); 124 common ground digital outputs DO and 4 common ground digital inputs DI. Supporting a maximum load current of 500 mA. The channels are mutually isolated; each path of output isolation protection is 2500 VDC; the response time of the output isolator is less than or equal to 3 ms; the output voltage is input VCC voltage, and the voltage value is 5 VDC-40 VDC; each path of output current is more than or equal to 200 mA; the input adopts optical isolation, and the isolation voltage is 2500 VDC; the response time of the input optical isolator is less than or equal to 150 mu s; overvoltage protection: 70 VDC; when the voltage of the input end and the voltage of the reference point (COM) end are more than 10V, the logic is judged to be high.

FIG. 6 is an expanded block diagram of an FPGA in the multi-interface computer control device according to the present invention. As shown in fig. 6, PCIE is a peripheral communication bus provided by the core board processor, and the bottom board integrates devices that need to communicate with the core board through PCIE, such as a serial driver chip, an FPGA, and a third-party CAN module. The COME interface between the core board and the bottom board realizes the connection of external equipment from the bottom board and the display control assembly with the core board. The FPGA can be any one of XC6SLX45T, WT588D-20Ss, HT1621B, DRV8806, AIP1629B, DRV886OPWR, AiP 1612. This embodiment will be described with XC6SLX45T being selected. After the analog quantity is subjected to signal adjustment, AD conversion is carried out through ADS1258, and programmable logic control is carried out through an FPGA chip XC6SLX 45T. And after level conversion, the GPIO of XC6SLX45T outputs digital signals. The digital signal input is subjected to level conversion and then is subjected to programmable logic control through XC6SLX 45T. The CAN module is interconnected with the PCA82C250, the PCA82C250 is further interconnected with the SJA1000, and the SJA1000 is connected with the XC6SLX45T through the aviation plug interface X3. PCA82C250 is the physical interface of the CAN controller, whose main roles are: differential sending signals are provided for BUS, and differential receiving signals are provided for the CAN controller. The PCA82C250 is powered with 5V dc. SJA1000 is an independent CAN controller, and is compatible with two technical specifications of CAN2.0A and CAN2.0B. The SJA1000 has a strong capability in terms of error handling, overload capability, reception filtering, and the like.

The input and output of various control and detection signals are the important core functions of the fire control computer. The core board of the computer is loaded with a CPU and a chip set but does not have an interface for directly processing the input and output signals, the input and output of the signals (including all digital and analog signals) are completed through an FPGA on a bottom board, and the core board controls the operation of the FPGA through a PCIE bus.

Digital quantity IO: the system has 124 channels of digital quantity DO and 4 channels of digital quantity DI, which are respectively led out through X1, X6, X9, X10 and X11 of the host machine navigation plug. Each IO channel can drive a maximum current of 500 mA. The digital quantity IO is realized by FPGA through PCI-E bus extension; and a secondary development kit is provided, so that a software programmer can conveniently write an API function set for operating and controlling all IO devices of the fire control computer.

Analog quantity io (ad): the system has 46 analog quantity inputs, all the inputs are isolated from each other, the acquisition precision is 16 bits, and the acquisition speed reaches 1 kbps. Analog input channels are led out through X4, X7 and X8 of host aviation plug respectively. The analog quantity IO is realized by FPGA through PCI-E bus extension; and a secondary development kit is provided, so that a software programmer can conveniently write an API function set for operating and controlling all IO devices of the fire control computer.

A CAN communication interface: the system provides 3-way CAN devices with isolation. Supporting the CAN2.0A/B protocol. The highest communication speed reaches 1M/S. The CAN equipment communicates with a fire control computer by adopting a USB bus; the system is provided with a terminal matching resistance selection mechanism, and whether the CAN node of the path has a terminal matching resistance of 120 ohms is determined through a short-circuit cap. The terminal matching resistor is positioned on a circuit board of the host; the secondary development kit is equipped to facilitate a software programmer to write an API function set for operating all CAN devices of the system.

The host IO board is combined with the bottom board through the Samtec connector, the VGA patch cord and the power supply patch cable, and information exchange and power supply input with external equipment (through air-plug interfaces X1 and X4-X15) are executed. The host IO board is loaded with 15 aviation plug interfaces, wherein X2-X3 are correspondingly connected with the computer display control assembly, so that the switching functions of power supply of the display control assembly, VGA output signals, USB buses, touch LED screens and other signals are realized.

In summary, the invention has the beneficial effects that through the design of the above embodiments: the host computer assembly comprises a bottom plate, a core plate and an input/output plate, wherein the core plate and the input/output plate are arranged on the bottom plate; the display component is electrically connected with the host component; by arranging multiple interfaces, the system has strong control capability on controlled equipment outside the system, is friendly to a human-computer interaction interface, has diversified interfaces and multiple functions, and can be generally applied to the field of large-scale computer control.

While the invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the scope of the invention. In addition, many modifications may be made to adapt a particular situation to the teachings of the invention without departing from its scope. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims

1. a multi-interface computer control device, is characterized in that, comprises:

a host assembly, including a bottom plate, a core board and an input and output board, and the core board and the input and output board are arranged on the bottom plate;

The display assembly is electrically connected with the host assembly.

2. The multi-interface computer control device according to claim 1, wherein the base plate is provided with a power supply rectification circuit and an input and output signal processing circuit, and a network signal is provided between the core board and the input and output board Drive and VGA signal amplifying circuit, realize communication with external serial port and CAN bus by extending the PCIE bus of the core board.

3 . The multi-interface computer control device according to claim 1 , wherein the core board is provided with a chipset and a memory shelf. 4 .

4 . The multi-interface computer control device according to claim 1 , wherein the display component comprises a touch screen, a liquid crystal display screen, and an extended USB interface. 5 .

5. The multi-interface computer control device according to claim 4, wherein a display control IO board, a key board and a USB board are loaded in the display assembly, X1, X2, X3 of the display control IO board load It is used for communication with the host; the air plug interfaces X4 and X5 communicate directly with the launch equipment of the vehicle rocket launcher air plug interface.

6. The multi-interface computer control device according to claim 5, wherein the display component is provided with an LED screen control communication interface, and the input and output board is provided with an RS232 serial port, an RS422 interface, a VGA interface, and a USB interface, The RS232 serial port and the VGA interface communicate with the LED screen control communication interface through the air plug interface X2, and the USB interface communicates with the IKey keyboard and the USB interface through the air plug interface X2; X12 communicates with on-board equipment via serial port.

7 . The multi-interface computer control device according to claim 1 , wherein the core board is provided with a processor, and the processor is provided with a PCIE communication bus. 8 .

8 . The multi-interface computer control device according to claim 7 , wherein the base plate is provided with a serial port driver chip, an FPGA, and a CAN module, and the serial port driver chip, the FPGA, and the CAN module are electrically connected. 9 .

9 . The multi-interface computer control device according to claim 8 , wherein the FPGA is any one of XC6SLX45T, WT588D-20Ss, HT1621 B, DRV8806, AIP1629B, DRV886OPWR, and AiP1612. 10 .

10 . The multi-interface computer control device according to claim 8 , wherein the serial port driver chip is any one of CH340T, CH340C, and CH340G. 11 .