Greenhouse gas quality control chip module for environment and meteorological monitoring

Abstract

The utility model relates to the technical field of gas quality control chips, in particular to a greenhouse gas quality control chip module for environment and meteorological monitoring, which comprises a main control unit, a four-core 64-bit Cortex-A55 processor integrated with an ARM (advanced RISC machines) framework and a main frequency up to 2.0 GHz. The storage unit comprises a 8GB LPDDR4x high-speed flash memory chip and a 128GB eMMC memory, and the storage unit is connected with the main control unit through a high-speed bus; the interface unit comprises a gigabit network port, a USB2.0 interface, a USB3.0 interface, at least one USART serial port, at least one I2C interface, a PCIE3.0 interface and an MIPI interface, and the interface unit is connected with the main control unit through an internal data bus. The device can be integrated in a greenhouse gas observation system, and real-time quality control is carried out on continuously measured concentrations of CO2, CH4, N2O and the like in air.

Description

Technical Field

[0001] This utility model relates to the field of gas quality control chip technology, specifically a greenhouse gas quality control chip module for environmental and meteorological monitoring. Background Technology

[0002] Carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O) are the three most important greenhouse gases in the atmosphere, contributing more than 80% to global total radiative forcing of all long-lived greenhouse gases. Since the Industrial Revolution, due to continuous human activities, the concentrations of CO2, CH4, and N2O in the atmosphere have risen rapidly. The World Greenhouse Gas Bulletin published by the World Meteorological Organization / Global Atmospheric Watch (WMO / GAW) shows that in 2023, the annual average molar ratios of CO2, CH4, and N2O in the global atmosphere reached 420.0 × 10⁻⁶. -6 1934×10 -9 and 336.9×10 -9 (Volume ratios) were 151%, 265%, and 125% of pre-Industrial Revolution (1750) levels, respectively. The continuous rise in the concentration of greenhouse gases in the atmosphere has led to a series of climate and environmental problems, including global warming, ocean acidification, and sea-level rise.

[0003] Because CO2, CH4, and N2O are long-lived greenhouse gases with minimal spatiotemporal variability in the ambient atmosphere, high-precision continuous observations are required to accurately obtain regional greenhouse gas concentration levels and variation characteristics, and thus assess the total regional greenhouse gas sources. The WMO / GAW has specific requirements for the comparability of its observation results, specifying a minimum of 0.1 × 10⁻⁶. -6 2×10 -9 and 0.1×10 -9 Several factors influence the comparability of observations from the perspective of the observation system, including the analyzer's operating status, the status of the standard gas tracing system, the calibration method, and the status of the supporting air intake system. These factors all contribute to uncertainty and need to be considered in data evaluation. Furthermore, each influencing factor needs to be controlled within a certain range to ensure the overall comparability of the measurements taken by the entire observation system. Therefore, we propose a greenhouse gas quality control chip module for environmental and meteorological monitoring. Utility Model Content

[0004] The purpose of this invention is to provide a greenhouse gas quality control chip module for environmental and meteorological monitoring, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A greenhouse gas quality control chip module for environmental and meteorological monitoring includes:

[0007] The main control unit uses a quad-core 64-bit Cortex-A55 processor with an integrated ARM architecture and a maximum clock speed of 2.0GHz;

[0008] The storage unit includes an 8GB LPDDR4x high-speed flash memory chip and a 128GB eMMC memory. The storage unit is connected to the main control unit via a high-speed bus and stores editable quality control algorithms and processed concentration data.

[0009] The interface unit includes at least four high-density connectors, which provide functional interfaces including a gigabit Ethernet port, a USB 2.0 interface, a USB 3.0 interface, at least one USART serial port, at least one I2C interface, a PCIe 3.0 interface, and a MIPI interface. The interface unit is connected to the main control unit via an internal data bus.

[0010] Preferably, the operating frequency of the main control unit is configured in an adjustable mode, including:

[0011] Baseline operating mode: 1.2GHz main frequency with 0.8V core voltage;

[0012] High-performance mode: 2.0GHz main frequency with 1.2V core voltage;

[0013] Low power mode: 800MHz main frequency with 0.6V core voltage.

[0014] Preferably, the interface unit includes:

[0015] The first high-density connector includes a USART interface and an MDI interface. The USART interface is connected to the main control unit via a serial communication bus to transmit greenhouse gas sensor data or control commands. The MDI interface supports Ethernet communication for high-speed data transmission to the network.

[0016] The second high-density connector includes an I2C interface, an SD card interface, a USB interface, and a GM interface. The I2C interface is connected to the main control unit via a bus protocol and is used to control external valve port devices.

[0017] The third high-density connector, including the MIPI-DSI interface, MIPI-CSI interface, and USB 2.0 interface, is used to connect an environmental monitoring camera via a video decoding circuit.

[0018] The fourth high-density connector includes a PCIe 3.0 interface and a USB 3.0 interface. The PCIe 3.0 interface is connected to the main control unit via a high-speed data channel and to a high-speed coprocessor to accelerate data analysis algorithms.

[0019] Preferably, it also includes a reset button reference circuit, connected to the RECOVERY_MODE pin of the second high-density connector. A low-level reset signal is sent through the RESETn button of the reset button reference circuit, and a pull-down resistor is connected to the RESETn button. When the RESETn button is pressed, RESETn is grounded, triggering a system reset.

[0020] Preferably, the reset button reference circuit further includes an RK809_PWRON button, which controls sleep / wake-up with a short press and controls power off with a long press.

[0021] Preferably, it also includes an RTC reference circuit, which is connected to the GPIO pin of the second high-density connector via an I2C3 bus.

[0022] Preferably, it also includes a TF card reference circuit, which is directly connected to the SDO channel of the main control unit.

[0023] Compared with the prior art, the beneficial effects of this utility model are:

[0024] This invention can be integrated into a greenhouse gas monitoring system to receive real-time data on CO2, CH4, N2O, water vapor concentrations, and analytical status parameters. It features functions such as quality control coding of greenhouse gas concentration data, real-time data storage, output, status monitoring and anomaly alarms, and online upgrades. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall modular architecture of this utility model;

[0026] Figure 2 This is a schematic diagram of the principle of the first high-density connector in this utility model;

[0027] Figure 3 This is a schematic diagram of the principle of the second high-density connector in this utility model;

[0028] Figure 4 This is a schematic diagram of the principle of the third high-density connector in this utility model;

[0029] Figure 5 This is a schematic diagram of the principle of the fourth high-density connector in this utility model;

[0030] Figure 6 This is a circuit diagram of the reference circuit for the reset button in this utility model;

[0031] Figure 7 This is a circuit diagram of the RTC reference circuit in this utility model;

[0032] Figure 8 This is a circuit diagram of the TF card reference circuit in this utility model;

[0033] Figure 9 This is a circuit diagram of the Ethernet interface reference circuit in this utility model;

[0034] Figure 10 This is a PHY address configuration diagram of the Ethernet interface reference circuit in this utility model. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0038] Please see Figure 1 The present invention will be further described through the following embodiments:

[0039] A greenhouse gas quality control chip module for environmental and meteorological monitoring includes:

[0040] The main control unit uses a quad-core 64-bit Cortex-A55 processor with an integrated ARM architecture and a maximum clock speed of 2.0GHz;

[0041] The storage unit includes 8GB LPDDR4x high-speed flash memory chips and 128GB eMMC memory, and the storage unit is connected to the main control unit via a high-speed bus;

[0042] The interface unit includes a gigabit Ethernet port, a USB 2.0 interface, a USB 3.0 interface, at least one USART serial port, at least one I2C interface, a PCIe 3.0 interface, and a MIPI interface. The interface unit is connected to the main control unit through an internal data bus.

[0043] It features a sampled ARM CPU core, a low-power quad-core 64-bit Cortex-A55 processor with a maximum clock speed of 2.0GHz, boasting low power consumption and high performance. It also includes 8GB of LPDDR4x high-speed flash memory and 128GB of eMMC. The module is highly integrated, employing four high-density connectors for its interfaces. The module's external interfaces are abundant, including a Gigabit Ethernet port, USB 2.0 and USB 3.0 ports, and a variety of external serial ports including USART and I2C for easy connection to external devices. Additionally, it has reserved PCIe 3.0 and MIPI interfaces for convenient functional expansion.

[0044] After the module is powered on, the main control unit initializes the system through internal firmware. First, it loads the bootloader from the storage unit, completing hardware self-tests and loading peripheral drivers. Once initialization is complete, the system automatically switches to baseline operating mode (1.2GHz clock speed, 0.8V core voltage) to balance power consumption and performance requirements. Users can insert a pre-configured boot card through the SD card interface of the second high-density connector, or connect to a host computer via USB 3.0 for firmware upgrades.

[0045] In this embodiment, the operating frequency of the main control unit is configured to be adjustable, including:

[0046] Baseline operating mode: 1.2GHz main frequency with 0.8V core voltage;

[0047] High-performance mode: 2.0GHz main frequency with 1.2V core voltage;

[0048] Low power mode: 800MHz main frequency with 0.6V core voltage.

[0049] High-performance mode (2.0GHz, 1.2V): When the data load exceeds the threshold (such as parallel sampling of multiple sensors or video stream processing), the system automatically switches to this mode to ensure real-time data processing capabilities.

[0050] Power consumption mode (800MHz, 0.6V): Enabled when there is no data acquisition task or the environmental monitoring camera is in sleep mode, the system clock is maintained by the button battery of the RTC reference circuit, further reducing standby power consumption.

[0051] Mode switching is dynamically controlled by the built-in power management chip (PMIC) of the main control unit, and the status is fed back to the external monitoring system in real time through the I2C interface.

[0052] like Figure 2-5 The interface unit includes:

[0053] The first high-density connector includes a USART interface and an MDI interface. The USART interface is connected to the main control unit via a serial communication bus to transmit greenhouse gas sensor data or control commands. The MDI interface supports Ethernet communication for high-speed data transmission to the network.

[0054] The second high-density connector includes an I2C interface, an SD card interface, a USB interface, and a GMA interface. The I2C interface is connected to the main control unit via a bus protocol and is used to control external valve port devices.

[0055] The third high-density connector, including the MIPI-DSI interface, MIPI-CSI interface, and USB 2.0 interface, is used to connect an environmental monitoring camera via a video decoding circuit.

[0056] The fourth high-density connector includes a PCIe 3.0 interface and a USB 3.0 interface. The PCIe 3.0 interface is connected to the main control unit via a high-speed data channel and to a high-speed coprocessor to accelerate data analysis algorithms.

[0057] It can be integrated into greenhouse gas monitoring systems to continuously monitor parameters such as CO2, CH4, N2O, and water vapor concentrations in the air in real time, as well as analyze status information such as photocavity temperature and pressure. Simultaneously, it integrates greenhouse gas equipment valve control algorithms to realize the control functions of each valve. It features real-time data output, storage, status monitoring and anomaly alarms, and online upgrades. By incorporating data archiving and verification, data quality control, and multi-valve logic control functions, it ensures reliable greenhouse gas monitoring data, controllable data acquisition processes, and improves the quality of greenhouse gas monitoring data.

[0058] In addition, it also includes a reset button reference circuit, such as Figure 6As shown, it is connected to the RECOVERY_MODE pin of the second high-density connector. A low-level reset signal is transmitted through the RESETn button in the reset button reference circuit. This signal is connected to the RESETn button via a pull-down resistor. When the RESETn button is pressed, it is grounded, triggering a system reset. The reset button reference circuit also includes an RK809_PWRON button. A short press of the RK809_PWRON button controls sleep / wake-up, while a long press controls power off.

[0059] Furthermore, it also includes an RTC reference circuit, such as Figure 7 As shown, the RTC reference circuit is connected to the GPIO pins of the second high-density connector via the I2C3 bus. An external RTC device is connected via I2C3, and a coin cell battery compatible power supply is achieved via D4, meaning that the coin cell battery can continue to power the RTC chip after the baseboard is powered off. The hardware is designed to be compatible with both RX8010SJ and PCF8563T / 5. When using PCF8563T / 5, ensure that the external capacitor on the OSCO pin is not soldered unconnected; otherwise, a probabilistic time retention issue may occur.

[0060] like Figure 8 As shown, it also includes a TF card reference circuit, which is directly connected to the SDO channel of the main control unit and supports TF cards up to UHS-I with a maximum speed of 104MB / s.

[0061] like Figure 9 , 10 As shown, the Ethernet interface reference circuit supports two 10 / 100 / 1000Mbps adaptive Ethernet ports, one internal and one external. Figure 9 , 10 A standard reference circuit for expanding external network ports. Figure 9 This is an Ethernet PHY chip. PHY (physical layer) chips are used to convert digital signals into analog signals suitable for transmission over Ethernet. Figure 9 The PHY chip in the CPU connects to the CPU's Ethernet controller (GMAC) and provides an Ethernet data transmission interface. The PHY chip's TX (transmit) and RX (receive) pins are used for data transmission with the network. The TX and RX signals are transmitted from the CPU's GMAC module to the PHY, where they are then converted into signals suitable for the network's physical layer. Figure 10One important function of PHY address configuration is RGMII (Reduced Gigabit Media Independent Interface). RGMII is a commonly used high-speed interface that connects the PHY chip and the Ethernet controller. The RGMII 10 / 100 / 1000 interface transmits data via signals such as TXD0-3 and RXD0-3. Mode″000″ and Mode″001″ are PHY chip mode configurations used to set the PHY's operating mode (e.g., full-duplex / half-duplex, 1000Mbps / 100Mbps, etc.). These settings help the PHY chip work with other devices.

[0062] Real-time verification: After the sensor data is input via the USART interface, the main control unit first performs a concentration range verification (CO2 concentration range is 400×10). -6 Up to 500×10 -6 The CH4 range is 1500 × 10 -9 Up to 10000×10 -9 The N2O range is 280×10 -9 Up to 500×10 -9 If the data exceeds the limit, it is marked as abnormal and an alarm signal is triggered. Secondly, the range of auxiliary signals is checked (44.5℃ < optical cavity temperature < 45.5℃; 130kPa < optical cavity pressure < 145kPa, if the data exceeds the limit, it is marked as abnormal and an alarm signal is triggered).

[0063] Archive verification: Data in the storage unit is stored in blocks according to timestamps, and an MD5 checksum file is generated daily to prevent data tampering or loss.

[0064] Valve port logic control: If a sensor reports abnormal data three times in a row, the main control unit closes the corresponding valve port through the I2C interface and switches to the backup gas path, while reporting a fault code to the monitoring terminal.

[0065] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A greenhouse gas quality control chip module for environmental and meteorological monitoring, characterized in that: include: The main control unit uses a quad-core 64-bit Cortex-A55 processor with an integrated ARM architecture and a maximum clock speed of 2.0GHz; The storage unit includes 8GB LPDDR4x high-speed flash memory chips and 128GB eMMC memory, and the storage unit is connected to the main control unit via a high-speed bus; The interface unit includes at least four high-density connectors, which provide functional interfaces including a gigabit Ethernet port, a USB 2.0 interface, a USB 3.0 interface, at least one USART serial port, at least one I2C interface, a PCIe 3.0 interface, and a MIPI interface. The interface unit is connected to the main control unit via an internal data bus.

2. The greenhouse gas quality control chip module for environmental and meteorological monitoring according to claim 1, characterized in that: The operating frequency of the main control unit is configured to be adjustable, including: Baseline operating mode: 1.2GHz main frequency with 0.8V core voltage; High-performance mode: 2.0GHz main frequency with 1.2V core voltage; Low power mode: 800MHz main frequency with 0.6V core voltage.

3. The greenhouse gas quality control chip module for environmental and meteorological monitoring according to claim 1, characterized in that: The interface unit includes: The first high-density connector includes a USART interface and an MDI interface. The USART interface is connected to the main control unit via a serial communication bus to transmit greenhouse gas sensor data or control commands. The MDI interface supports Ethernet communication for high-speed data transmission to the network. The second high-density connector includes an I2C interface, an SD card interface, a USB interface, and a GMA interface. The I2C interface is connected to the main control unit via a bus protocol and is used to control external valve port devices. The third high-density connector, including the MIPI-DSI interface, MIPI-CSI interface, and USB 2.0 interface, is used to connect an environmental monitoring camera via a video decoding circuit. The fourth high-density connector includes a PCIe 3.0 interface and a USB 3.0 interface. The PCIe 3.0 interface is connected to the main control unit via a high-speed data channel and to a high-speed coprocessor to accelerate data analysis algorithms.

4. The greenhouse gas quality control chip module for environmental and meteorological monitoring according to claim 1, characterized in that: It also includes a reset button reference circuit, connected to the RECOVERY of the second high-density connector. _ The M0DE pin is connected to the RESETn button of the reset button reference circuit. A low-level reset signal is connected to the RESETn button through a pull-down resistor. When the RESETn button is pressed, RESETn is grounded, triggering a system reset.

5. The greenhouse gas quality control chip module for environmental and meteorological monitoring according to claim 4, characterized in that: The reset button reference circuit also includes RK809. _ PWRON button, RK809 _ A short press of the PWRON button controls sleep / wake-up, while a long press controls power off.

6. The greenhouse gas quality control chip module for environmental and meteorological monitoring according to claim 1, characterized in that: It also includes an RTC reference circuit, which is connected to the GPIO pins of the second high-density connector via an I2C3 bus.

7. The greenhouse gas quality control chip module for environmental and meteorological monitoring according to claim 1, characterized in that: It also includes a TF card reference circuit, which is directly connected to the SDO channel of the main control unit.

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