An industrial computer system

Abstract

The utility model relates to an industrial computer system belongs to industrial computer technical field. The system contains casing and sets up computer mainboard, power management unit, power input unit, communication interface unit, heat dissipation subassembly and external interface unit in the inside of casing, wherein, computer mainboard is equipped with processor unit, control unit, solid state disk and temperature monitoring unit, processor unit respectively with control unit, communication interface unit and solid state disk electricity is connected, control unit respectively with communication interface unit and temperature monitoring unit electricity is connected, communication interface unit with external interface unit electricity is connected, power input unit with power management unit electricity is connected, power management unit respectively with processor unit, control unit, communication interface unit, heat dissipation subassembly and temperature monitoring unit electricity is connected, heat dissipation subassembly is used for the heat dissipation air cooling treatment to computer mainboard. The utility model has improved the adaptability and operation reliability of industrial computer system under the severe environment greatly.

Description

Technical Field

[0001] This utility model relates to the field of industrial control computer technology, and more specifically to an industrial control computer system. Background Technology

[0002] In the field of industrial control, industrial control computer systems mainly use industrial control computers to summarize, analyze, and organize various information collected by sensors and local area networks, thereby achieving the integration of information management and automatic control.

[0003] Existing industrial control computer systems have shortcomings in terms of localization rate, interface expandability, and adaptability to harsh environments. For example, their core processors rely on imports, making them susceptible to external technical limitations in special application scenarios; the number and types of interfaces are insufficient to meet the needs of multi-controller (such as DSP, PLC) communication, multi-sensor data acquisition (such as temperature and humidity), and multi-device linkage (such as host computer, monitor); at the same time, in environments with high temperatures (such as concentrated heat inside the power cabinet, where the temperature can easily exceed 50°C), high humidity, salt spray, and frequent vibration, the stability and service life of the equipment are significantly reduced, making it impossible to guarantee the continuity and accuracy of power supply operation status monitoring.

[0004] Therefore, there is an urgent need for a new ruggedized industrial computer system to address the pain points of existing industrial computer equipment in terms of environmental adaptability and reliability. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the present invention provides an industrial control computer system to address the technical problem that the existing industrial control computer systems are not very adaptable to the environment.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: This utility model provides an industrial control computer system, comprising a housing and a computer motherboard, power management unit, power input unit, communication interface unit, heat dissipation assembly, and external interface unit disposed inside the housing; wherein, The computer motherboard is equipped with a processor unit, a control unit, a solid-state drive, and a temperature monitoring unit; The processor unit is electrically connected to the control unit, the communication interface unit, and the solid-state drive, respectively; the control unit is electrically connected to the communication interface unit and the temperature monitoring unit, respectively; and the communication interface unit is electrically connected to an external interface unit. The power input unit is electrically connected to the power management unit, and the power management unit is electrically connected to the processor unit, the control unit, the communication interface unit, the heat dissipation component, and the temperature monitoring unit, respectively. The heat dissipation component is installed on the computer motherboard to provide heat dissipation and air cooling for the computer motherboard.

[0007] Furthermore, the power input unit includes a power interface, a power filter, and an isolated DC-DC module connected in sequence; the power interface is connected to the power supply, and the isolated DC-DC module is electrically connected to the power management unit.

[0008] Furthermore, the power management unit is specifically a power management chip.

[0009] Furthermore, the communication interface unit includes a VGA interface circuit, a LAN interface circuit, a first serial port circuit, a second serial port circuit, a CAN interface circuit, a USB interface circuit, and a switch interface circuit; among which, The processor unit is electrically connected to the VGA interface circuit, the LAN interface circuit, the first serial port circuit, and the USB interface circuit, respectively. The control unit is electrically connected to the CAN interface circuit, the second serial port circuit, and the digital input / output interface circuit, respectively.

[0010] Furthermore, the CAN interface circuit includes a CAN controller, a CAN bus driver, and a DB9 connector connected in sequence; wherein the CAN controller is electrically connected to the control unit, and the DB9 connector is electrically connected to the external interface unit.

[0011] Furthermore, the heat dissipation components include a radiator, heat-conducting copper pipes, and a blower; among which, The processor unit is attached to a heat sink via thermally conductive silicone, and the heat sink is electrically connected to the power management unit; one end of the thermally conductive copper pipe is connected to the heat dissipation component, and the other end extends to the edge of the housing; the blower is installed on the edge of the housing to exhaust heat into the device.

[0012] Furthermore, the front panel of the housing is provided with a power indicator light, a working indicator light, and a status indicator light; the power indicator light is electrically connected to the power management unit; the working indicator light is electrically connected to the status pin of the solid-state drive; and the status indicator light is electrically connected to the processor unit and the control unit, respectively.

[0013] Furthermore, the external interface unit includes a serial port, a VGA port, a CAN port, a LAN port, and a USB port; wherein the serial port, VGA port, CAN port, LAN port, and USB port are all bonded with conductive rubber. The serial ports are connected to the first serial port circuit and the second serial port circuit respectively; the VGA port is electrically connected to the VGA interface circuit; the CAN port is electrically connected to the CAN interface circuit; the LAN port is electrically connected to the LAN interface circuit; and the USB port is electrically connected to the USB interface circuit.

[0014] In summary, this utility model has the following beneficial effects: This utility model provides an industrial control computer system. The system first processes external power supply through a power input unit and then sends it to a power management unit. The power management unit then precisely distributes power according to the different power requirements of the processor unit, control unit, communication interface unit, heat dissipation component, and temperature monitoring unit, ensuring stable power supply to each unit. Simultaneously, the processor unit and control unit cooperate, with the processor unit leading data processing and system scheduling, and the control unit assisting in expanding interfaces and linking with the temperature monitoring unit to collect motherboard temperature in real time. Together, they achieve reliable data exchange between the industrial control computer system and external devices through the communication interface unit and external interface unit. Furthermore, the heat dissipation component is located corresponding to the computer motherboard, which can dissipate heat from the motherboard in a timely manner, ensuring that core components operate at suitable temperatures. This forms a complete and collaborative link of power supply, control, temperature monitoring, and heat dissipation interaction, significantly improving the adaptability and operational reliability of the industrial control computer system in harsh environments. Attached Figure Description

[0015] Figure 1 This is an electrical structure block diagram of the industrial control computer system of this utility model; Figure 2 This is the electrical schematic diagram of the industrial control computer system of this utility model; Figure 3 This is the electrical schematic diagram of the control unit of this utility model; Figure 4 This is the circuit diagram of the temperature sensor of this utility model; Figure 5 This is the electrical schematic diagram of the LAN interface of this utility model; Figure 6 This is the electrical schematic diagram of the power input unit of this utility model. Detailed Implementation

[0016] The present invention will be further described in detail below with reference to the accompanying drawings.

[0017] To make the objectives, solutions, and advantages of this utility model clearer, the following detailed description of this utility model is provided in conjunction with the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.

[0018] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be apparent to those skilled in the art that these specific details are not necessary to implement the present invention. In other embodiments, well-known structures, circuits, materials, or methods are not specifically described in order to avoid obscuring the present invention.

[0019] In the description of this utility model, the terms "upper", "lower", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0020] The following is in conjunction with the appendix of this utility model. Figures 1-6 The embodiments of this utility model will be described in detail below. Example

[0021] Reference Figure 1 and Figure 2 As shown, an industrial control computer system according to this embodiment includes a housing and a computer motherboard, a power management unit, a power input unit, a communication interface unit, a heat dissipation assembly, and an external interface unit disposed inside the housing. The computer motherboard includes a processor unit, a control unit, a solid-state drive (SSD), and a temperature monitoring unit. The processor unit is electrically connected to the control unit, the communication interface unit, and the SSD; the control unit is electrically connected to the communication interface unit and the temperature monitoring unit; and the communication interface unit is electrically connected to the external interface unit.

[0022] The power input unit is electrically connected to the power management unit, which in turn is electrically connected to the processor unit, control unit, communication interface unit, heat dissipation component, and temperature monitoring unit.

[0023] The heat dissipation component is located on the computer motherboard and is used to dissipate heat and provide air cooling for the computer motherboard.

[0024] In this embodiment, the main function of the computer motherboard is to acquire external data, process relevant information and transmit it upwards, while responding to commands issued by the host computer, monitoring the operating status of key parameters, and storing data.

[0025] The processor unit, acting as the system's main controller, is responsible for data processing, system resource scheduling, and processing and storing external data (such as controller information and sensor data). It also interacts with the host computer and display via interfaces. Specifically, the processor unit uses a 3A3000 processor's COME module (paired with a 7A1000 bridge chip). The 7A1000 bridge chip connects to the Loongson 3 series processor via an HT high-speed bus interface and integrates a GPU, DisplayController, DDR3 SDRAM memory controller, and interfaces such as PCIE, SATA, USB, GMAC, I2C, UART, and digital input / output interfaces. The COME module can accommodate CPU selection and provides interfaces for 2 Gigabit Ethernet ports, 4 USB ports, 2 serial ports, 1 LVDS port, 2 IIC ports, and 1 VGA port, offering high performance and strong scalability. The computer motherboard uses a 158 factory connector (model CQTL-110-01-LDA) to output the required signals to the COME module.

[0026] The 3A3000 processor has a typical power consumption of 40W, therefore it requires a combination of conductive and air cooling to meet the high operating temperature requirement of 70°C. The processor's heatsink is attached to the top of the 3A3000 processor with thermally conductive silicone and extends to the edge of the casing via thermal pipes. A blower is installed to dissipate heat promptly from the device, ensuring normal processor operation. External interface units are mounted on the front and rear walls of the casing, with signal connections achieved via flying wires. All external interfaces are bonded with conductive rubber to reduce internal electromagnetic radiation and the impact of external electromagnetic fields. A power input filter is connected to effectively attenuate electromagnetic interference caused by the power line.

[0027] When the processor unit is running, the 3A3000 processor interacts with the control unit via the SPI bus (25MHz clock frequency), receiving CAN data and temperature data uploaded by the control unit, and simultaneously issuing control commands. It connects to the solid-state drive via the SATA 3.0 interface for system program storage and test data reading / writing. It directly connects to the LAN and VGA circuits of the communication interface unit via interfaces such as GMAC and DisplayController, outputting corresponding signals. The SPI bus supports a clock frequency of up to 25MHz, with a theoretical data bandwidth of 12.5Mbps. The bandwidth required for simultaneous operation of two CAN and two serial ports is approximately 3Mbps. The 12.5Mbps bandwidth exceeds the theoretical 3Mbps bandwidth required by the communication interface; therefore, the SPI bus is chosen to meet the communication requirements of the industrial control computer system in this embodiment.

[0028] The control unit assists the processor unit in expanding its interface, enabling functional control of the CAN bus, serial port, and digital input / output interfaces. It also receives data from the temperature monitoring unit and transmits it to the processor; this is specifically implemented using an FPGA chip. (Refer to...) Figure 3 As shown, since the module only outputs 4 serial ports, it needs to be expanded to include 2 CAN ports via an FPGA. Therefore, the FPGA needs to provide logic functions such as 2 CAN bus control, compatibility control of 4 serial ports, and 4 temperature acquisition channels. The control unit specifically uses an SMQ4VLX25FF668 FPGA, paired with an SM32PFS48M configuration chip (maximum configuration space 32Mb). During system operation, the control unit communicates with the processor unit via the SPI bus, receives control commands from the processor, and uploads the acquired data. Its internal logic implements 2 CAN bus control (compatible with CAN2.0A / B), 2 serial port expansion (before TTL level conversion), 20 switch interface control channels, and 4 temperature acquisition channels. Simultaneously, the SM32PFS48M configuration chip loads programs for the FPGA via the JTAG interface, ensuring that the FPGA automatically runs preset logic after power-on, and that the logic resource utilization rate is less than 20%, reserving sufficient margin for functional expansion.

[0029] In this embodiment, the solid-state drive (SSD) serves as the storage medium for the industrial control computer system, storing system operating programs and test data (such as power supply operating parameters and temperature and humidity data). It features wear leveling and bad block management functions, improving data storage reliability. Specifically, the SSD is a 2.5-inch SATA SSD (128GB), connected to the processor unit via a SATA 3.0 interface, supporting compatible speeds of 6.0Gbps / 3.0Gbps / 1.5Gbps.

[0030] During operation, the processor unit writes system programs and test data to the solid-state drive (SSD) via the SATA interface, or reads historical data stored therein. The SSD's wear leveling algorithm can evenly distribute the number of writes to the storage units, and the bad block management algorithm automatically shields damaged storage blocks to avoid data loss. At the same time, the SSD's status pin is connected to a working indicator light. When data is being read or written, the indicator light flashes, and it stays on when ready, thus realizing storage status monitoring.

[0031] In this embodiment, the temperature monitoring unit is used to collect real-time temperature data from key locations on the computer motherboard (near the processor, FPGA, and power management unit), and has high and low temperature alarm functions, providing a basis for heat dissipation component adjustment and system fault early warning. (Refer to...) Figure 4As shown, the temperature monitoring unit uses a 4-channel GX18B20 temperature sensor, which is connected to the control unit (FPGA) via a single bus, and is equipped with pull-up resistors and filter capacitors. The GX18B20 sensor supports a measurement range of -55℃ to +125℃, with an accuracy of ±0.4℃ within the range of -10℃ to 75℃. It uses single-bus communication (requiring only 1 pin) and requires no external components.

[0032] When the system is running, the FPGA sends temperature measurement commands to the sensor via a single bus. The sensor converts the temperature data into a digital signal and sends it back to the FPGA. When the temperature is higher than the preset maximum threshold (e.g., 65℃) or lower than the minimum threshold (e.g., -5℃), the sensor outputs an alarm signal. After receiving the signal, the FPGA notifies the processor unit via the SPI bus. The processor unit can then trigger the heat dissipation components to enhance heat dissipation or output alarm information to the host computer.

[0033] In this embodiment, the power input unit includes a power interface, a power filter, and an isolated DC-DC module connected in sequence; the power interface is connected to the power supply, and the isolated DC-DC module is electrically connected to the power management unit.

[0034] The power input unit is used to connect external power, filter electromagnetic interference, and perform primary isolation voltage conversion, providing a stable DC 12V input to the power management unit and ensuring system power supply safety. The power interface uses a J30J-9TJ type. The power filter is a JLD50V3A-ZK022 type, housed at the bottom of the domestically produced ruggedized industrial computer housing, ensuring full contact with the housing and positioned close to the power input interface. The isolated DC-DC module is an HDS75S18M12 type, installed within the industrial computer housing, and dissipates heat through the housing. Additionally, a power cooling fan can be installed in the power input unit for further cooling.

[0035] Reference Figure 6 As shown, during system operation, an external DC24V power supply (voltage range 18V~36V) is connected through the J30J-9TJ power interface and first enters the power filter. The common-mode inductor, differential-mode capacitor, and grounding capacitor inside the filter work together to attenuate common-mode and differential-mode electromagnetic interference introduced by the power line (such as radiated interference from other equipment in the power cabinet), ensuring a clean input voltage. The filtered DC24V voltage is then fed into the isolated DC-DC module, which uses isolation conversion technology to convert it into a stable DC12V voltage (output current 6.25A, typical efficiency 90%, ripple ≤90mV), while simultaneously achieving electrical isolation between the input and output sides (isolation voltage ≥2500VDC), preventing external power grid fluctuations or equipment failures from impacting the internal circuitry. Finally, the DC12V voltage is transmitted through wires to the input terminal of the power management unit, providing the basic power supply for subsequent secondary voltage conversion.

[0036] In this embodiment, the power management unit performs secondary multi-level voltage conversion on the DC12V output from the power input unit, accurately distributing power according to the power consumption requirements of different units such as the processor unit and control unit. It also features overvoltage, overcurrent, and overheat protection functions to ensure stable power supply to each unit. Specifically, the power management unit is a power management chip, which includes an SM4644 four-channel DC-DC chip and an SGM6130 DC-DC chip.

[0037] The SM4644 chip converts DC12V into four voltages: +5V / 0.8A (for the control unit and temperature monitoring unit), +3.3V / 0.6A (for the processor unit I / O interface and power indicator), +2.5V / 0.4A (for the processor unit core auxiliary circuit), and +1.2V / 1.5A (for the processor unit core). This chip has ±1.5% output voltage regulation accuracy and overvoltage, overcurrent, and temperature protection functions. When the output voltage is abnormal or the chip temperature exceeds the limit, the power supply is automatically cut off.

[0038] Meanwhile, the SGM6130 chip converts DC12V to +5V / 3A to power the CAN transceiver of the communication interface unit (because the CAN transceiver has a built-in isolated power supply, it requires an independent high-current 5V power supply). The chip supports a wide input range of 4.5V to 28.5V and has thermal shutdown and undervoltage protection functions.

[0039] In addition, the "PGOOD" pin of the +3.3V output terminal is connected to a power indicator light. When the +3.3V voltage is normal, the indicator light will light up, and otherwise it will turn off, realizing visual monitoring of the power status. Each voltage level is transmitted to the corresponding unit through wires. The total power consumption is ≤53.8W, and the power consumption of the whole machine is ≤60W.

[0040] In this embodiment, the communication interface unit is used to realize data interaction between the system and external devices (host computer, display, DSP controller, PLC, temperature and humidity sensor), complete signal level conversion, electromagnetic protection and protocol adaptation, and ensure reliable communication. The communication interface unit includes a VGA interface circuit, a LAN interface circuit, a first serial port circuit, a second serial port circuit, a CAN interface circuit, a USB interface circuit, and a switch interface circuit; wherein, the processor unit is electrically connected to the VGA interface circuit, the LAN interface circuit, the first serial port circuit, and the USB interface circuit respectively; The control unit is electrically connected to the CAN interface circuit, the second serial port circuit, and the digital input / output interface circuit, respectively.

[0041] Specifically, the VGA interface circuit is electrically connected to the processor unit (DisplayController interface).

[0042] The VGA interface circuit consists of a UM5204 ESD protection chip and a DB15 connector. During system operation, the processor unit outputs a VGA signal conforming to the VSA standard (R / G / B primary colors + HSYNC / VSYNC synchronization signal). After electrostatic interference is suppressed by the UM5204 chip (meeting IEC61000-4-2 Level 4 electrostatic protection), the signal is connected to the monitor via the DB15 connector, supporting a maximum resolution of 1280×1024 and displaying power operating parameters.

[0043] Reference Figure 5 As shown, the LAN interface circuit (i.e., the Ethernet interface circuit) is electrically connected to the processor unit (GMAC interface). The LAN interface circuit specifically includes a HY644801E network transformer and an HJ30J-24ZK connector. During system operation, the processor unit outputs two MDI differential signals (TX+ / TX-, RX+ / RX-). After common-mode interference isolation and impedance matching by the network transformer, these signals are connected to the host computer via the HJ30J-24ZK connector. It supports programmable speeds of 10 / 100 / 1000Mbps, conforms to the IEEE 802.3 MAC layer protocol, and enables high-speed data interaction with the host computer.

[0044] The first serial port circuit consists of two channels: one RS232 circuit and one RS485 circuit. The first serial port circuit is electrically connected to the processor unit (UART interface). The first RS232 circuit includes a UM3232EEUE level converter chip and a DB9 connector. The first RS485 circuit specifically includes an AT13487EESA transceiver and a DB9 connector.

[0045] During system operation, the processor unit outputs TTL level serial port signals. In the first RS232 circuit, the UM3232EEUE chip converts the TTL level to the EIA / TIA-232-F standard level (±3.7V), which is then connected to external devices via a DB9 connector. In the first RS485 circuit, the AT13487EESA+ chip converts the TTL level to RS485 differential level, features AutoDirection automatic transmit / receive switching, supports a rate of 500kbps and 128 nodes, and acquires temperature and humidity sensor data via a DB9 connector (baud rate 9600bps adjustable), with a bit error rate ≤ .

[0046] The second serial port circuit is also a two-way circuit, consisting of one second RS232 circuit and one second RS485 circuit. The circuit structures of the second RS232 and second RS485 circuits are identical to those of the first RS232 and first RS485 circuits described above. The second serial port circuit is electrically connected to the control unit (FPGA GPIO interface).

[0047] During system operation, the control unit outputs a TTL level signal through the internal UART analog logic. After being converted by the corresponding level conversion chips in the second RS232 circuit and the second RS485 circuit, the serial port interface is expanded through the DB9 connector to meet the requirements of multiple external devices connecting at the same time. The data is transmitted to the processor unit via the SPI bus.

[0048] The CAN interface circuit is used for electrical connection with the control unit (GPIO interface of the FPGA). The circuit structure of the CAN interface circuit includes a CAN controller, a CAN bus driver, and a DB9 connector connected in sequence. The CAN controller is electrically connected to the control unit, and the DB9 connector is electrically connected to the external interface unit. The FPGA provides control access to two CAN interfaces and is connected to the CAN controller. The CAN controller mainly implements CAN protocol processing and bus driving functions. The CAN controller needs to implement the CAN2.0A and CAN2.0B protocols, and the driver implements the CAN bus level driving function. Specifically, the CAN controller uses the SMSJA1000 CAN controller, and the CAN bus driver uses the CTM8251 isolated transceiver, which integrates an isolated power supply, has low electromagnetic radiation and high electromagnetic interference immunity, and can improve anti-interference capability during CAN interface communication.

[0049] During system operation, the FPGA outputs CAN control signals (TX / RX), which are converted into signals conforming to the CAN2.0A / B protocol by the SMSJA1000 controller. Then, the signals are converted into CAN bus level (CANH / CANL) by the CTM8251 transceiver (2500VDC isolation, conforming to ISO11898-2 standard). The signals communicate with 5 DSP controllers and 1 PLC through the DB9 connector (baud rate 250kbps can be changed) to read DSP controller information.

[0050] The USB interface circuit is electrically connected to the processor unit (USB controller interface), and its circuit structure consists of an SRV05-4ESD protection chip, an SGM2588A power distribution switch, and a J30J-25ZK connector.

[0051] When the system is running, the processor unit outputs USB 2.0 differential signals (D+ / D-), which are protected by the SRV05-4 chip (IEC61000-4-2 Level 4 electrostatic discharge protection). The power supply to the USB interface is controlled by the SGM2588A power switch (maximum 1.1A current limit), and finally connected to the Flash memory through the J30J-25ZK connector to realize data reading and writing.

[0052] The 20-channel digital input / output interface circuit is electrically connected to the control unit (GPIO interface of the FPGA). Its circuit structure consists of an optocoupler, a current-limiting resistor, a voltage divider resistor, and a terminal block.

[0053] During system operation, the control unit outputs a 3.3V logic control signal, which is electrically isolated by an optocoupler (to avoid external high-voltage interference), and then converted into a 24V level signal by the drive circuit. This signal is then connected to external devices (such as relays and sensors) via terminal blocks. On the input side, the external 24V switching signal is stepped down by a voltage divider resistor and then converted into a 3.3V signal recognizable by the FPGA via an optocoupler, enabling the acquisition of external device status. A total of 20 interfaces meet the needs of controlling multiple devices.

[0054] In this embodiment, the heat dissipation assembly includes a heat sink, a thermally conductive copper pipe, and a blower. The heat sink is attached to the top of the processor unit via thermally conductive silicone, filling the gap between the processor and the heat sink to improve heat conduction efficiency. The heat sink is electrically connected to the power management unit. One end of the thermally conductive copper pipe is connected to the heat dissipation assembly, and the other end extends to the edge of the housing, allowing heat to be conducted to the housing. The blower is installed at the edge of the housing to dissipate heat into the device. The blower is powered by DC 12V from the power management unit. The heat sink can be a turbo fan.

[0055] In addition, the isolated DC-DC module and power filter in this embodiment conduct heat to the outside through the housing by contacting the housing; the temperature monitoring unit collects the processor temperature in real time, and when the temperature exceeds 55°C, the processor triggers the blower to speed up through the control unit to enhance heat dissipation, forming a closed-loop heat dissipation control of "temperature monitoring - active speed adjustment".

[0056] In this embodiment, the external interface unit serves as the physical connection interface between the system and external devices. It integrates all external interfaces of the communication interface unit to ensure a reasonable interface layout and convenient plug-and-play functionality. It is also compatible with the Advantech 2473G industrial control computer interface, enabling seamless replacement.

[0057] The interfaces of the external interface unit are distributed on the front and rear panels of the housing and are connected to the corresponding circuits of the communication interface unit via flying wires. Specifically, they include a serial port, VGA port, CAN port, LAN port, and USB port. The serial port, VGA port, CAN port, LAN port, and USB port are all bonded with conductive rubber to reduce internal electromagnetic radiation and the influence of external electromagnetic fields on the device.

[0058] The serial ports are connected to the first serial port circuit and the second serial port circuit respectively; the VGA port is electrically connected to the VGA interface circuit; the CAN port is electrically connected to the CAN interface circuit; the LAN port is electrically connected to the LAN interface circuit; and the USB port is electrically connected to the USB interface circuit.

[0059] Specifically, the serial port includes four DB9 serial ports, designated COM1 to COM4. The VGA port uses a DB15 VGA interface. The CAN port includes two DB9 CAN interfaces, designated CAN1 to CAN2. The LAN port (Ethernet port) includes two HJ30J-24ZK Ethernet interfaces, designated LAN1 to LAN2. The USB port includes four J30J-25ZK USB interfaces, designated USB1 to USB4. The power input unit uses a J30J-9TJ power interface.

[0060] In this embodiment, considering the need for the industrial control computer system to be compatible with the existing 2473G power supply cabinet and to achieve full compatibility with the communication interfaces included in the 2473G power supply cabinet, a DB15 VGA interface, a DB9 serial port (COM1~COM4), a DB9 CAN interface (CAN1~CAN2), a J30J-9TJ power interface, a grounding post, and three indicator lights are arranged on the front panel of the housing. The DB15 VGA interface, DB9 serial port (COM1~COM4), DB9 CAN interface (CAN1~CAN2), and J30J-9TJ power interface are respectively connected to the VGA interface circuit, the first serial port circuit, the CAN interface circuit, and the power input unit, facilitating daily operation and status monitoring.

[0061] The rear panel of the housing features HJ30J-24ZK Ethernet interfaces (LAN1~LAN2) and J30J-25ZK USB interfaces (USB1~USB4), corresponding to the LAN interface circuits and USB interface circuits, thus avoiding the debugging interfaces occupying front panel space. All interfaces are ruggedized, and the connectors are military-grade models (such as the HJ30J series), providing vibration resistance.

[0062] In this embodiment, the front panel of the housing is equipped with a power indicator light, a working indicator light, and a status indicator light; the power indicator light is electrically connected to the power management unit; the working indicator light is electrically connected to the status pin of the solid-state drive; and the status indicator light is electrically connected to the processor unit and the control unit, respectively. This embodiment uses three indicator lights to indicate the internal control unit, hard drive data read / write status, and power operation status of the device.

[0063] In this embodiment, the housing serves as the mounting carrier for each unit of the system, providing physical protection and structural support, while also assisting in heat dissipation (conductive heat dissipation path) and isolating the internal circuitry from external electromagnetic interference and the influence of harsh environments (such as dust and moisture).

[0064] The housing is made of metal, and all external interfaces on the housing are sealed with conductive rubber to reduce electromagnetic radiation and external interference. The bottom of the housing is in full contact with the power filter and the isolated DC-DC module, forming a conductive heat dissipation path to conduct the heat generated by the power module to the outside.

[0065] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. An industrial control computer system, characterized in that, It includes a housing and a computer motherboard, power management unit, power input unit, communication interface unit, heat dissipation assembly, and external interface unit housed within the housing; wherein, The computer motherboard is equipped with a processor unit, a control unit, a solid-state drive, and a temperature monitoring unit; The processor unit is electrically connected to the control unit, the communication interface unit, and the solid-state drive, respectively; the control unit is electrically connected to the communication interface unit and the temperature monitoring unit, respectively; and the communication interface unit is electrically connected to an external interface unit. The power input unit is electrically connected to the power management unit, and the power management unit is electrically connected to the processor unit, the control unit, the communication interface unit, the heat dissipation component, and the temperature monitoring unit, respectively. The power input unit includes a power interface, a power filter, and an isolated DC-DC module connected in sequence. The power interface is connected to the power supply, and the isolated DC-DC module is electrically connected to the power management unit. The heat dissipation component is installed on the computer motherboard to provide heat dissipation and air cooling for the computer motherboard.

2. The industrial control computer system according to claim 1, characterized in that: The power management unit is specifically a power management chip.

3. The industrial control computer system according to claim 1, characterized in that: The communication interface unit includes a VGA interface circuit, a LAN interface circuit, a first serial port circuit, a second serial port circuit, a CAN interface circuit, a USB interface circuit, and a digital input / output interface circuit; wherein... The processor unit is electrically connected to the VGA interface circuit, the LAN interface circuit, the first serial port circuit, and the USB interface circuit, respectively. The control unit is electrically connected to the CAN interface circuit, the second serial port circuit, and the digital input / output interface circuit, respectively.

4. The industrial control computer system according to claim 3, characterized in that: The CAN interface circuit includes a CAN controller, a CAN bus driver, and a DB9 connector connected in sequence; wherein, the CAN controller is electrically connected to the control unit, and the DB9 connector is electrically connected to the external interface unit.

5. The industrial control computer system according to claim 1, characterized in that: The heat dissipation assembly includes a radiator, heat-conducting copper pipes, and a blower; wherein... The processor unit is attached to a heat sink via thermally conductive silicone, and the heat sink is electrically connected to the power management unit; one end of the thermally conductive copper pipe is connected to the heat dissipation component, and the other end extends to the edge of the housing; the blower is installed on the edge of the housing to exhaust heat into the device.

6. The industrial control computer system according to claim 1, characterized in that: The front panel of the housing is provided with a power indicator, a working indicator, and a status indicator; the power indicator is electrically connected to the power management unit; the working indicator is electrically connected to the status pin of the solid-state drive; and the status indicator is electrically connected to the processor unit and the control unit, respectively.

7. The industrial control computer system according to claim 1, characterized in that: The external interface unit includes a serial port, a VGA port, a CAN port, a LAN port, and a USB port; wherein the serial port, VGA port, CAN port, LAN port, and USB port are all bonded with conductive rubber. The serial ports are connected to the first serial port circuit and the second serial port circuit respectively; the VGA port is electrically connected to the VGA interface circuit; the CAN port is electrically connected to the CAN interface circuit; the LAN port is electrically connected to the LAN interface circuit; and the USB port is electrically connected to the USB interface circuit.

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