A thermal management device control apparatus

Abstract

The utility model belongs to the field of aviation electromechanical technology relates to a kind of thermal management equipment control device. Including following module: power module, ARM processing module, FPGA processing module, CAN communication interface, net mouth communication interface, RS422 serial communication interface, FLASH memory, FSMC parallel interface, RS485 serial communication interface, analog quantity acquisition / output circuit, solenoid valve control interface, liquid supplement pump control interface and water pump control interface;Data interaction is carried out with navigation control computer through CAN communication interface, receives the crew state and control instruction from navigation control computer, and judges working mode, opens / close by the selection of function, controls water pump, liquid supplement pump or solenoid valve.Simultaneously, support water pump, liquid supplement pump manual mode control and the manual speed control of pump.

Description

Technical Field

[0001] This utility model belongs to the field of aviation electromechanical technology and relates to a thermal management equipment control device. Background Technology

[0002] With the rapid development of information technology, embedded software has become an indispensable part of various industries, and its informatization and intelligentization capabilities play a key role in fields such as national defense, civil aviation, and healthcare.

[0003] Thermal management systems are a key component of modern environmental control systems, playing a crucial role, particularly in industrial automation, electric vehicles, and data centers. Thermal management control devices enable real-time monitoring and precise control of ambient temperature, pressure, and flow. With the continuous development of aviation technology and the iterative evolution of aircraft requirements, the design of modern thermal management control systems is constantly evolving. Increasingly, automation functions and intelligent technologies are being applied to thermal management control systems to improve the efficiency and accuracy of aviation operating systems while ensuring operational safety. This places new demands on thermal management equipment control devices, requiring not only strict assurance of software security and stability but also the processing and response to real-time data such as flow, pressure, and load status to ensure the accuracy and timeliness of the control process. They play an indispensable role in the reliability, safety, and energy efficiency of modern aviation equipment. Utility Model Content

[0004] A thermal management equipment control device is provided. The system mainly consists of an air control computer, a thermal management equipment control device, power and propulsion water pumps I-IV, and high and low pressure solenoid valves. The air control computer obtains the current unit status and control requirements in a higher-level system and sends them to the thermal management equipment through a CAN communication interface. By monitoring sensor information such as ambient temperature, water pump flow rate, and water tank level, the system controls the operation of water pumps, replenishment pumps, and solenoid valves, thereby realizing the self-testing, water pump switching, and load on / off control functions of the thermal management system. It also has touch screen display and control functions, as well as fault reporting functions.

[0005] Utility Model Purpose This utility model discloses a thermal management equipment control device that can monitor the ambient temperature and working status of the thermal management equipment in real time, interact with the flight control computer, accurately record periodic operation data, and facilitate maintenance and management.

[0006] Technical solution A thermal management equipment control device includes the following modules: a power supply module, an ARM processing module, an FPGA processing module, a CAN communication interface, a network communication interface, an RS422 serial communication interface, a FLASH memory, an FSMC parallel interface, an RS485 serial communication interface, an analog signal acquisition / output circuit, a solenoid valve control interface, a replenishment pump control interface, and a water pump control interface. The power supply module is connected to both the ARM and FPGA processing modules. The ARM processing module interacts with the CAN, RS422 serial communication interfaces, and FLASH memory, and is also connected to the network communication interface. The FPGA processing module interacts with the RS485 serial communication interface and the analog signal acquisition / output circuit, and is also connected to the solenoid valve control interface, the replenishment pump control interface, and the water pump control interface. The FSMC parallel interface is located between the ARM and FPGA processing modules and interacts with both modules.

[0007] The CAN communication interface contains at least two channels.

[0008] The RS485 communication interface includes at least five channels.

[0009] The RS422 communication interface includes at least one channel.

[0010] The network communication interface shall include at least one channel.

[0011] The water pump drive circuit contains at least four channels.

[0012] The replenishment pump drive circuit includes at least two paths.

[0013] The solenoid valve drive circuit contains at least twelve channels.

[0014] The analog signal acquisition circuit contains at least thirty-one channels.

[0015] The analog output circuit contains at least six channels.

[0016] The FSMC parallel interface circuit includes at least one path.

[0017] The FLASH memory contains at least one chip.

[0018] The aforementioned thermal management equipment control device interacts with the air control computer via a CAN communication interface, receives the crew status and control commands from the air control computer, determines the operating mode, and controls the opening / closing of water pumps, replenishment pumps, or solenoid valves through function selection. Simultaneously, it supports manual control of water pumps and replenishment pumps, as well as manual speed adjustment control of the pumps.

[0019] The beneficial effects of this application are as follows: This invention can receive control commands from the air control computer via a CAN communication interface, switch the operating mode of the thermal management equipment, and control the working status of water pumps, replenishment pumps, or high and low pressure solenoid valves, thereby realizing the self-testing, water pump switching, and load on / off control functions of the thermal management system. It also monitors the operating status of the process and displays the current system operating status and any abnormal conditions on the device via a touchscreen. Attached Figure Description

[0020] Figure 1 A schematic diagram of the embedded development structure for a thermal management equipment control device; Detailed Implementation To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be described in more detail below with reference to the embodiments of this utility model. In the examples, the same or similar reference numerals denote the same or similar components or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of this utility model. The embodiments described below with reference to the embodiments are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. The embodiments of this utility model will be described in detail below with reference to their specific implementation.

[0021] The present invention will now be described in further detail with reference to the accompanying drawings.

[0022] A thermal management equipment control device includes the following modules: a power supply module, an ARM processing module, an FPGA processing module, a network communication interface, an FSMC parallel interface, a CAN communication interface, an RS485 serial communication interface, an RS422 serial communication interface, a FLASH memory, an analog signal acquisition / output circuit, a solenoid valve control interface, a replenishment pump control interface, and a water pump control interface.

[0023] Power supply module: The circuit power supply mainly uses a 300V to 28V DC / DC converter to convert the external 300V power supply to 28V. After being combined with the external 28V power supply, it is converted by a 28V to DC / DC converter to the 12VDC operating voltage required for the internal circuit and the 24VDC power supply voltage for the solenoid valve load.

[0024] ARM Processing Module: Uses a 32F407 core digital processor with an 8 MHz external clock, 1MB of internal program memory, and 192KB of internal data memory.

[0025] FPGA processing module: adopts JYX200T FPGA, external frequency 25MHz, logic units: 215360.

[0026] CAN Communication Interface: Connected to the ARM processing module, the thermal management equipment control unit and the air control computer employ a bidirectional redundant communication method. After the thermal management equipment control unit completes its initialization process upon power-up, it opens the CAN communication interface to receive operating modes and control signals from the air control computer, and completes the acquisition of command and status signals, switching operating modes. After the control unit outputs data, it reopens the CAN communication interface to send relevant equipment operation data to the aircraft computer.

[0027] FSMC Parallel Interface: Connected to the ARM processing module and the FPGA processing module, the thermal management equipment control device adopts a dual ARM+FPGA control core for processing. The FPGA processing module is mainly responsible for driver interface processing, and the ARM processing module is mainly responsible for system logic processing. The two complete information transmission and conversion through the FSMC parallel interface, thereby realizing the device functions.

[0028] Network communication interface: Connected to the ARM processing module, the thermal management equipment control device adopts the network port online upgrade method. It obtains the upgrade content by communicating with the air control computer via the network port. After the device switches to the maintenance and upgrade mode, the internal software program of the device is successfully upgraded, and then it switches back to the working mode.

[0029] RS422 serial communication interface: Connected to the ARM processing module, the RS422 serial port is used to communicate with ground maintenance equipment to send the current status information of the system to the ground equipment for maintenance and troubleshooting, export and erase data of specified FLASH sectors, upload CRC verification, and other functions. FLASH memory: Directly connected to the ARM processing module, the external FLASH memory is used to record sensor data, software version, fault data, system status, etc., with a size of 256M×8bit. The internal FLASH memory is used to store the executable software object code.

[0030] RS485 serial communication interface: Connected to the FPGA processing module, the RS485 serial port is used to communicate with the four water pumps, obtain the water pump controller status, and send water pump control commands. In addition, the RS485 serial port is also used to communicate with the touchscreen to obtain relevant system configurable parameters, report fault information, and update manual control commands. Analog signal acquisition / output circuit: Connected to the FPGA processing module, it acquires external sensor information such as temperature, pressure, flow rate, and hydraulic pressure during the operation of the thermal management equipment control device, serving as input for system control conditions. Based on the system's current speed mode, it outputs analog speed control signals for loads such as the water pump and replenishment pump. Solenoid valve control interface: Directly connected to the FPGA processing module, used to control the opening / closing of twelve high and low pressure solenoid valves. After the thermal management equipment control device completes power-on initialization, the DSP processing module enters a periodic operation state. Based on different sensor input information and fault judgment conditions, it outputs twelve control signals to open / close the corresponding high and low pressure solenoid valves. Water pump and replenishment pump driver interface: Connected to the FPGA processing module, it completes the corresponding water pump and replenishment pump start / stop actions according to different working instructions of different functions, and performs water pump and replenishment pump speed adjustment operations. It is a key part of the entire control device.

[0031] Implementation example: See appendix Figure 1 A thermal management equipment control device includes a power supply module, an ARM processing module, an FPGA processing module, a network communication interface, an FSMC parallel interface, a CAN communication interface, an RS485 serial communication interface, an RS422 serial communication interface, a FLASH memory, an analog signal acquisition / output circuit, a solenoid valve control interface, a replenishment pump control interface, and a water pump control interface. The power supply module supplies power to the ARM processing module and the solenoid valve load. The network communication interface is used for online upgrades of the ARM processing module. The FSMC parallel interface is used for information exchange between the FPGA processing module and the ARM processing module. The CAN communication interface is used for data exchange and command parsing between the ARM processing module and the air control computer. The RS485 communication interface is used for status feedback, speed control, status display, and parameter configuration between the FPGA processing module and the water pump, as well as the touch screen. The RS422 communication interface is used for maintenance operations and upgrades between the ARM processing module and the ground maintenance equipment. The FLASH memory is connected to the ARM processing module to record sensor data, software version, fault data, system status, and other information. The analog signal acquisition / output circuit is connected to the FPGA processing module to acquire external sensor information and output speed commands in combination with system logic. The solenoid valve control interface and the water pump and replenishment pump drive interfaces are connected to the FPGA processing module. The FPGA processing module receives FSMC parallel port control commands from the ARM and directly outputs them to complete the corresponding load on / off control.

[0032] Furthermore, unless otherwise defined, the technical or scientific terms used in this application description shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "upper," "lower," "left," "right," "center," "vertical," "horizontal," "inner," and "outer," etc., used in this application description to indicate relative direction or positional relationship are used only to indicate relative orientation or positional relationship, and do not imply that the device or component must have a specific orientation, or be constructed and operated in a specific orientation. When the absolute position of the described object changes, its relative positional relationship may also change accordingly, and therefore should not be construed as a limitation on this application. The terms "first," "second," "third," and similar terms used in this application description are used only for descriptive purposes to distinguish different components, and should not be construed as indicating or implying relative importance. The terms "a," "one," or "the," etc., used in this application description should not be construed as an absolute limitation on quantity, but should be construed as indicating the existence of at least one. The terms "including," "comprising," etc., used in this application description mean that the element or object preceding the word covers the element or object listed after the word and its equivalents, without excluding other elements or objects.

[0033] Furthermore, it should be noted that, unless otherwise explicitly specified and limited, terms such as “installation,” “connection,” and “linkage” used in the description of this application should be interpreted broadly. For example, a connection can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; or it can be a connection within two components. Those skilled in the art can understand its specific meaning in this application according to the specific circumstances.

[0034] The above description is merely a specific embodiment of this utility model and is not intended to limit this utility model. Within the spirit and principles of this utility model, any person skilled in the art may use the above-disclosed technical content to make changes or modifications to equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model, as well as any modifications, equivalent substitutions, improvements, etc., should be included within the protection scope of this utility model.

Claims

1. A control device for thermal management equipment, characterized in that, The system includes a power supply module, an ARM processing module, an FPGA processing module, a CAN communication interface, a network communication interface, an RS422 serial communication interface, a FLASH memory, an FSMC parallel interface, an RS485 serial communication interface, an analog signal acquisition / output circuit, a solenoid valve control interface, a replenishment pump control interface, and a water pump control interface. The power supply module is connected to both the ARM and FPGA processing modules. The ARM processing module interacts with the CAN, RS422 serial communication interfaces, and FLASH memory, and is also connected to the network communication interface. The FPGA processing module interacts with the RS485 serial communication interface, the analog signal acquisition circuit, and the analog signal output circuit, and is also connected to the solenoid valve control interface, the replenishment pump control interface, and the water pump control interface. The FSMC parallel interface is located between the ARM and FPGA processing modules and interacts with both modules.

2. The apparatus as claimed in claim 1, characterized in that, The CAN communication interface contains at least two channels.

3. The apparatus as described in claim 1, characterized in that, The RS485 serial communication interface includes at least five channels.

4. The apparatus as claimed in claim 1, characterized in that, The RS422 serial communication interface includes at least one channel; the network communication interface includes at least one channel.

5. The apparatus as claimed in claim 1, characterized in that, The replenishment pump drive circuit includes at least two channels; the solenoid valve drive circuit includes at least twelve channels; and the analog signal acquisition circuit includes at least thirty-one channels.

6. The apparatus as claimed in claim 1, characterized in that, The analog output circuit includes at least six channels; the FSMC parallel interface circuit includes at least one channel; and the FLASH memory includes at least one chip.

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