CN114553913A - A multi-modal real-time data transmission module and method for marine mobile platform - Google Patents

Abstract

The invention relates to the technical field of marine science and communication information, in particular to a multi-modal real-time data transmission module and a multi-modal real-time data transmission method for an offshore mobile platform. The multi-mode real-time data transmission module can be used in both offshore and open sea, two scenes are considered, data are transmitted mainly by iridium in the open sea, data transmission is realized mainly by an external communication module connected with an expansion interface in the offshore, the multi-mode real-time data transmission module is wide in network signal coverage and good in accessibility, specific expansion functions such as positioning, an electronic compass and an external expansion interface are provided, the multi-mode real-time data transmission module belongs to light-weight data transmission, the functions are complete, the design is simple, the module power consumption is low, standby control can be realized, solar clean energy can be used compatibly, and a solar panel is reserved for continuously supplying power to a core module.

Description

A multi-modal real-time data transmission module and method for marine mobile platform

technical field

The invention relates to the fields of marine science and communication information technology, in particular to a multimodal real-time data transmission module and method for a marine mobile platform.

Background technique

The data transmission modules currently used in the market are mainly based on wireless, GPS, 3G, 4G or traditional USB, RS232, RJ45 network ports and other physical interfaces to realize data transmission. Human ships, unmanned boats, wave gliders, underwater robots, offshore floating platforms, offshore monitoring devices, offshore oil well platforms and other devices are in the far sea. This type of data transmission module, there are traditional data transmission modules that move at sea When the platform is applied, the network coverage area is small and the accessibility is poor. The traditional data transmission module is ineffective when applied to the maritime mobile platform. Most of them focus on the data transmission function and lack corresponding requirements for the expansion function, and the traditional data transmission module adopts consumer-grade or Industrial-grade devices are less tested in complex offshore environments and are not suitable for specific offshore mobile platform application scenarios, and need to be improved.

SUMMARY OF THE INVENTION

The purpose of the present invention is to solve the shortcomings existing in the prior art, and proposes a multi-modal real-time data transmission module and method for a maritime mobile platform.

In order to achieve the above purpose, the present invention adopts the following technical solutions: the multi-modal real-time data transmission module for the maritime mobile platform, the multi-modal real-time data transmission module for the maritime mobile platform is composed of It is composed of a multi-modal real-time data transmission module, a power supply part and an expansion module. The multi-modal real-time data transmission module includes a low-power MCU, a DC-DC unit, a CAN, an iridium satellite unit, an iridium satellite antenna, a network port, a storage unit, GPS/Beidou two-in-one unit, electronic compass and expansion interface.

In order to subdivide the functions of the power supply part, the present invention improves that the output end of the low-power MCU is electrically connected to the input end of the DC-DC unit, and the power supply part includes a solar panel, a power interface and an external power supply module .

In order to realize the connection function between the DC-DC unit and the power supply part, the present invention improves that the output end of the DC-DC unit is electrically connected to the input end of the power interface, and the output end of the power interface is connected to the solar panel and the external power supply. The input end of the module is electrically connected.

In order to realize the connection function between the low-power MCU and the CAN and the network port, the present invention improves that the output end of the low-power MCU is electrically connected to the input end of the CAN through the CAN channel, and the output end of the low-power MCU is connected through the MII channel. It is electrically connected to the input end of the network port.

In order to realize the data transmission function between the low-power MCU and the iridium antenna, the present invention improves that the output end of the low-power MCU is electrically connected to the input end of the iridium star unit through the RS232 channel, and the output end of the iridium star unit is electrically connected through the RS232 channel. The RF channel is connected to the input signal of the Iridium antenna.

In order to realize the data storage function of the storage unit, the present invention improves that the storage unit includes an SD card and a USB, the output end of the SD card is electrically connected to the input end of the low-power MCU through an SDIO channel, and the output end of the USB is electrically connected. The terminal is electrically connected with the input terminal of the low-power MCU through the USB channel.

In order to realize the connection function between the low-power MCU and the GPS/Beidou two-in-one unit, the electronic compass, and the expansion interface, the present invention improves that the output end of the low-power MCU is connected to the GPS/Beidou two-in-one unit, the electronic compass through the RS232 channel . The input end of the expansion interface is electrically connected, and the electronic compass includes an acceleration sensor, a magnetic sensor and a gyroscope.

In order to realize the connection function between the expansion interface and the expansion module, the present invention improves that the expansion interface is a four-channel chip, and the output end of the expansion interface is electrically connected to the input end of the expansion module.

In order to subdivide the function of the extension module, the present invention improves that the extension module includes a wireless module, a 4G module, a weather station and a sensor, and the sensor includes but is not limited to a pressure sensor, a temperature sensor, a salinity sensor, and a dissolved oxygen sensor .

A method for a multi-modal real-time data transmission module for an offshore mobile platform, comprising the following steps:

S1: Power supply to the multi-modal real-time data transmission module through the solar panel or external power supply module, the module performs the initialization process after power supply, and the low-power MCU starts the module to work;

S2: Interaction of position information through GPS/Beidou combined unit, providing attitude and heading information through electronic compass, connecting with expansion module through expansion interface, providing meteorological data through the weather station inside the expansion module, and data collection through sensors;

S3: The low-power MCU performs data processing, calculation and analysis, and judges the validity of the data. If the analysis data is judged to be wrong, it returns to the power supply process of the multi-modal real-time data transmission module and re-initializes. If the judgment is correct, the data is transmitted. ;

S4: If it is selected as the storage unit, the data will be stored in the SD card and sent to the USB, and the program running ends. If the data interaction and information transmission are selected, the data will be sent to the iridium unit, the expansion interface communication module, CAN or network port, If the data interaction is successful, the program ends, and if the interaction fails, it returns to the power supply process of the multi-modal real-time data transmission module and re-initializes.

Compared with the prior art, the advantages and positive effects of the present invention are:

In the present invention, the multi-modal real-time data transmission module can be used in both the offshore and the distant sea, and two scenarios are considered. In the open sea, data is mainly transmitted by iridium stars, and in the offshore sea, data transmission is mainly realized through the external communication module connected to the expansion interface. The modal real-time data transmission module has wide network signal coverage and good accessibility. The multi-modal real-time data transmission module can work independently and transmit data to shore-based equipment in real time when it is applied on the offshore mobile platform. The multi-modal real-time data transmission module is stable and reliable. Good effectiveness, suitable for use in complex offshore environments, suitable for use on mobile platforms at sea, with specific expansion functions, such as positioning, electronic compass, external expansion interfaces, multi-modal real-time data transmission modules are lightweight data transmission, full-featured And the design is simple, the module has low power consumption and can realize standby control, compatible with solar clean energy, and the solar panel is reserved to continuously supply power to the core module.

Description of drawings

1 is an overall program diagram of a multi-modal real-time data transmission module and method for a maritime mobile platform proposed by the present invention;

2 is a schematic diagram of program functions of a multi-modal real-time data transmission module and method for a maritime mobile platform proposed by the present invention;

FIG. 3 is a flow chart of program operation of a multi-modal real-time data transmission module and method for a maritime mobile platform proposed by the present invention.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

In the description of the present invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientation or positional relationship indicated by "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, and It is not indicated or implied that the indicated device or element must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention. In addition, in the description of the present invention, "plurality" means two or more, unless otherwise expressly and specifically defined.

Example 1

1-3, the present invention provides a technical solution: a multi-modal real-time data transmission module for a maritime mobile platform, a multi-modal real-time data transmission module for a maritime mobile platform It consists of a real-time data transmission module, a power supply part and an expansion module. The multi-mode real-time data transmission module includes a low-power MCU, DC-DC unit, CAN, Iridium unit, Iridium antenna, network port, storage unit, GPS/Beidou II The integration unit, electronic compass and expansion interface, through this setting, the main function module of the multi-modal real-time data transmission module for the marine mobile platform can be divided, and the multi-modal real-time data transmission module can be subdivided , divide the signal transmission into CAN, iridium unit, iridium antenna and network port.

Please refer to Figure 1-2. The output end of the low-power MCU is electrically connected to the input end of the DC-DC unit. The DC-DC unit mainly supplies power to the multi-modal data transmission module of the present invention, and has two main functions. One is , convert the 12V or 5V power supply of the external power supply part into the 5V, 3.3V, 1.8V, 1.2V power supply required by the multi-modal data transmission module. Second, it is controlled by the low-power MCU. After the MCU outputs the signal, it enters the In standby state, the whole module is in ultra-low power consumption mode, saving the power required for the module to work. The power supply part includes the solar panel, the power interface and the external power supply module. The output end of the DC-DC unit is electrically connected to the input end of the power interface. The power interface The output terminal of the solar panel is electrically connected to the input terminal of the solar panel and the external power supply module. The multi-modal real-time data transmission module provides stable working power through the DC-DC unit, which can be powered by an external battery or compatible with solar clean energy. Leave the external solar panel interface to continuously supply power to the low-power MCU.

Please refer to Figure 1-2. The output end of the low-power MCU is electrically connected to the input end of the CAN through the CAN channel. The output end of the low-power MCU is electrically connected to the input end of the network port through the MII channel. The main function is to be compatible with other external systems, and play an auxiliary or expansion role. The output end of the low-power MCU is electrically connected to the input end of the iridium star unit through the RS232 channel, and the output end of the iridium star unit is connected to the iridium star through the RF channel. The input signal of the antenna is connected, and the iridium unit performs data communication and interaction with the shore-based equipment or other equipment equipped with the iridium communication unit through the iridium system.

Please refer to Figure 1-2. The storage unit includes SD card and USB. The output of the SD card is electrically connected to the input of the low-power MCU through the SDIO channel, and the output of the USB is electrically connected to the input of the low-power MCU through the USB channel. The function of the storage unit is to locally store the data of the multi-modal data transmission module to ensure the integrity of the data storage. The SD card stores the module startup program.

Please refer to Figure 1-2. The output end of the low-power MCU is electrically connected to the input end of the GPS/Beidou 2-in-1 unit, electronic compass, and expansion interface through the RS232 channel. The electronic compass includes an acceleration sensor, a magnetic sensor and a gyroscope. Through the optimized extended Kalman filter algorithm, the compass outputs high-precision attitude information in real time, and has excellent dynamic performance, ensuring the high precision of dynamic measurement.

Please refer to Figure 1-2. The expansion interface is a four-channel chip. The output end of the expansion interface is electrically connected to the input end of the expansion module. The expansion module includes wireless modules, 4G modules, weather stations and sensors. The sensors include but are not limited to pressure sensors, Temperature sensor, salinity sensor, dissolved oxygen sensor, the main function of the expansion module is to provide extended applications for devices based on RS232 and RS485 protocols, such as compatible with 4G, 5G, wireless, NB-IOT, Lora, Bluetooth based on RS232 and RS485 protocols , Wifi, PLC and other communication modules, compatible with various types of sensors based on RS232 and RS485 protocols, such as pressure sensors, temperature sensors, salinity sensors, dissolved oxygen sensors, etc. , ADCP, ROV, AUV, large-scale acoustic equipment interface to achieve interconnection, as the entrance of data communication and data acquisition.

A method for a multi-modal real-time data transmission module for an offshore mobile platform, comprising the following steps:

S1: Power supply to the multi-modal real-time data transmission module through the solar panel or external power supply module, the module performs the initialization process after power supply, and the low-power MCU starts the module to work;

S2: Interaction of position information through GPS/Beidou combined unit, providing attitude and heading information through electronic compass, connecting with expansion module through expansion interface, providing meteorological data through the weather station inside the expansion module, and data collection through sensors;

S3: The low-power MCU performs data processing, calculation and analysis, and judges the validity of the data. If the analysis data is judged to be wrong, it returns to the power supply process of the multi-modal real-time data transmission module and re-initializes. If the judgment is correct, the data is transmitted. ;

S4: If it is selected as the storage unit, the data will be stored in the SD card and sent to the USB, and the program running ends. If the data interaction and information transmission are selected, the data will be sent to the iridium unit, the expansion interface communication module, CAN or network port, If the data interaction is successful, the program ends, and if the interaction fails, it returns to the power supply process of the multi-modal real-time data transmission module and re-initializes.

Working principle: In the overall operation of the module, the multi-modal real-time data transmission module is first powered by the solar panel or external power supply module. After the module is powered on, the initialization process is performed, and the low-power MCU starts the module to work. The two-in-one unit interacts with position information, provides attitude and heading information through the electronic compass, connects with the expansion module through the expansion interface, provides meteorological data through the weather station inside the expansion module, and collects data through sensors, and then the low-power MCU performs data. Process, calculate and analyze, and judge the validity of the data. If it is judged that the analysis data is wrong, it will return to the power supply process of the multi-modal real-time data transmission module, and re-initialize. If the judgment is correct, the data will be transmitted. If it is selected as a storage unit, Then save the data to the SD card and send it to the USB, and the program is finished. If you choose data interaction and information transfer, the data will be sent to the iridium unit, the expansion interface communication module, CAN or network port. If the data interaction is successful, the program will end, and the interaction If it fails, it will return to the power supply process of the multi-modal real-time data transmission module and re-initialize.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in other forms. Any person skilled in the art may use the technical content disclosed above to modify or remodel the equivalent embodiments for equivalent changes. In other fields, but without departing from the technical solution content of the present invention, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims (10)

1. A real-time data transmission module for multi-mode of an offshore mobile platform is characterized in that: the real-time data transmission module for the multiple modes of the offshore mobile platform consists of a multi-mode real-time data transmission module, a power supply part and an extension module, wherein the multi-mode real-time data transmission module comprises a low-power MCU, a DC-DC unit, a CAN, an iridium unit, an iridium antenna, a network port, a storage unit, a GPS/Beidou two-in-one unit, an electronic compass and an extension interface.

2. The real-time data transmission module for offshore mobile platform multimodal according to claim 1, wherein: the output end of the low-power MCU is electrically connected with the input end of the DC-DC unit, and the power supply part comprises a solar panel, a power supply interface and an external power supply module.

3. The real-time data transmission module for offshore mobile platform multimodal according to claim 2, wherein: the output end of the DC-DC unit is electrically connected with the input end of the power interface, and the output end of the power interface is electrically connected with the input ends of the solar panel and the external power supply module.

4. The real-time data transmission module for offshore mobile platform multimodal according to claim 1, wherein: the output end of the low-power MCU is electrically connected with the input end of the CAN through the CAN channel, and the output end of the low-power MCU is electrically connected with the input end of the network port through the MII channel.

5. The real-time data transmission module for offshore mobile platform multimodal according to claim 1, wherein: the output end of the low-power MCU is electrically connected with the input end of the iridium unit through an RS232 channel, and the output end of the iridium unit is in signal connection with the input end of the iridium antenna through an RF channel.

6. The real-time data transmission module for offshore mobile platform multimodal according to claim 1, wherein: the storage unit comprises an SD card and a USB, wherein the output end of the SD card is electrically connected with the input end of the low-power MCU through an SDIO channel, and the output end of the USB is electrically connected with the input end of the low-power MCU through a USB channel.

7. The real-time data transmission module for offshore mobile platform multimodal according to claim 1, wherein: the output end of the low-power MCU is electrically connected with the input ends of the GPS/Beidou two-in-one unit, the electronic compass and the expansion interface through the RS232 channel, and the electronic compass comprises an acceleration sensor, a magnetic sensor and a gyroscope.

8. The real-time data transmission module for offshore mobile platform multimodal according to claim 1, wherein: the expansion interface is a four-channel chip, and the output end of the expansion interface is electrically connected with the input end of the expansion module.

9. The real-time data transmission module for offshore mobile platform multimodal according to claim 1, wherein: the expansion module comprises a wireless module, a 4G module, a weather station and sensors, wherein the sensors comprise but are not limited to a pressure sensor, a temperature sensor, a salinity sensor and a dissolved oxygen sensor.

10. A method for real-time data transmission module of multi-mode of an offshore mobile platform is characterized by comprising the following steps:

s1: the multimode real-time data transmission module is powered through a solar panel or an external power supply module, the module performs an initialization process after power supply, and the low-power MCU starts the module to work;

s2: the GPS/Beidou two-in-one unit is used for interacting position information, the electronic compass is used for providing attitude and heading information, the expansion interface is connected with the expansion module, meteorological data are provided through a meteorological station in the expansion module, and data acquisition is carried out through a sensor;

s3: the low-power MCU processes, calculates and analyzes the data, judges the validity of the data, returns to the power supply flow of the multi-mode real-time data transmission module if the analyzed data is judged to be wrong, re-initializes the data, and transmits the data if the analyzed data is judged to be correct;

s4: if the storage unit is selected, storing the data to the SD card and sending the data to the USB, finishing program operation, if data interaction and information transmission are selected, sending the data to the Iridium unit, the expansion interface communication module, the CAN or the network port, finishing the program if the data interaction is successful, and returning to the power supply flow of the multi-mode real-time data transmission module if the interaction is failed, and re-initializing.

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