A marine signal acquisition control box
By adopting an A/B dual-redundancy design and a modular structure, the marine signal acquisition and control box solves the problems of low integration and poor reliability of traditional equipment, and achieves high integration and high reliability signal acquisition and control, which is suitable for various marine environments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- AVIC EAST CHINA OPTOELECTRONICS CO LTD
- Filing Date
- 2026-04-30
- Publication Date
- 2026-07-10
AI Technical Summary
Traditional marine signal acquisition and control equipment separates power supply and control, resulting in low integration, large space occupation, insufficient processing power of MCU solutions, high system complexity, poor synchronization of multi-channel data, and low reliability.
The power supply module and communication conversion module adopt A/B dual redundancy design, with parallel power conversion output modules and modular design. The communication conversion module uses FPGA, PHY chip, isolated CAN transceiver and RS232 transceiver to achieve redundancy backup and high integration between modules.
It improves system reliability, simplifies maintenance and troubleshooting, enhances equipment integration, can simultaneously control and power multiple back-end devices, has strong applicability, and extends service life.
Smart Images
Figure CN122363013A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of signal acquisition and control technology, specifically to a marine signal acquisition and control box. Background Technology
[0002] Signal acquisition and control boxes are crucial marine power distribution, signal acquisition, and processing equipment. They control all sensors and actuators on board, providing power while monitoring their operational status. Through intelligent algorithms in the background, they offer auxiliary decision-making and provide early warnings of potential faults, significantly improving human-machine interaction efficiency and work performance. Due to the large number of external signals requiring acquisition, traditional equipment typically separates power supply and control, resulting in low integration and requiring more cabin space. For the control end, MCU solutions are commonly used, but their comprehensive processing capabilities are insufficient. Multiple MCUs need to be connected online, or other chips are needed to expand system resources to complete control tasks, increasing system complexity and affecting the synchronization of multiple data streams. If any chip fails, multiple layers of troubleshooting are required, affecting the use of external equipment and resulting in low reliability. Therefore, a new type of marine signal acquisition and control box is urgently needed to solve this problem. Summary of the Invention
[0003] To address the aforementioned technical problems, this invention proposes a shipboard signal acquisition and control box.
[0004] The technical problem to be solved by this invention is achieved by the following technical solution: A marine signal acquisition and control box includes a power module A and a power module B, which are designed with dual redundancy (A / B) and connected in parallel; a communication conversion module A and a communication conversion module B; and a power conversion output module A and a power conversion output module B. Power module A and power module B are used to convert the received external AC220V into DC12V for powering communication conversion module A and communication conversion module B, and DC28V for powering power conversion output module A and power conversion output module B. Communication conversion module A and communication conversion module B are connected to the host computer, sensor and actuator respectively. They are used to process the real-time collected information and report it to the host computer, and to transmit the control commands of the host computer to the sensor and actuator to complete the execution of the control commands. Power conversion output module A and power conversion output module B are respectively connected to communication conversion module A and communication conversion module B via RS232 communication. They are used to convert DC28V into 64 independent DC28V outputs and to monitor the output information of the 64 independent DC28V outputs in real time and report it to the host computer through communication conversion module A and communication conversion module B, so as to control the on / off state of each DC28V output.
[0005] Preferably, both power module A and power module B include a power filter, a DC12V power module connected to the power filter, and a DC28V power module.
[0006] Preferably, the DC12V power supply module supplies power to the communication conversion module A and the communication conversion module B by outputting two DC12V channels, and the DC28V power supply module supplies power to the power conversion output module A and the power conversion output module B by outputting two DC28V channels.
[0007] Preferably, both communication conversion module A and communication conversion module B include: FPGA; The PHY chip connects to the FPGA and is used to communicate with the host computer. An isolated CAN transceiver, connected to the FPGA, is used for communication with sensors and actuators; The RS232 transceiver communication conversion module is connected to the FPGA and is used to communicate with the power conversion output module A and the communication conversion module B. The power chip, connected to the FPGA, is used to receive the DC12V output from the DC12V power module and power the FPGA.
[0008] Preferably, the PHY chip has two sets of four dual-redundant Ethernet interfaces, the isolated CAN transceiver has 64 CAN bus interfaces, and the RS232 transceiver has two RS232 interfaces.
[0009] Preferably, the 64-channel CAN bus interface on the isolated CAN transceiver adopts an isolated design.
[0010] Preferably, both power conversion output module A and power conversion output module B include an MCU and peripheral circuits, a power conversion output module RS232 transceiver connected to the MCU and peripheral circuits, and a DC28V×64 monitoring / protection output circuit.
[0011] Preferably, the power conversion output module RS232 transceiver is communicatively connected to the communication conversion module RS232 transceiver. The DC28V×64 monitoring / protection output circuit receives the DC28V output from the DC28V power modules in power module A and power module B, and converts it into 64 independent DC28V outputs.
[0012] The beneficial effects of this invention are: Compared with existing technologies, the module in this invention adopts an A / B dual redundancy design, with hardware and data serving as backups for each other, resulting in high reliability; it features a modular design, simple structure, and convenient troubleshooting and maintenance; it has high integration, enabling simultaneous control and power supply of multiple back-end devices; it can adopt different control measures according to the actual usage of the module, extending its service life; and it has strong applicability, suitable for various usage environments. Attached Figure Description
[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a block diagram illustrating the overall principle of the present invention; Figure 2 This is a block diagram of the power module of the present invention; Figure 3 This is a block diagram illustrating the principle of the communication conversion module of the present invention; Figure 4 This is a block diagram illustrating the principle of the power conversion output module of the present invention. Detailed Implementation
[0014] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0015] like Figures 1 to 4 As shown, a marine signal acquisition and control box includes power supply module A and power supply module B, communication conversion module A and communication conversion module B, and power conversion output module A and power conversion output module B, which are designed with dual redundancy (A / B) and connected in parallel. Modules A and B serve as backups for each other and have identical functions.
[0016] The core power supply section of the power module signal acquisition and control box mainly includes a power filter, a DC12V power module connected to the power filter, and a DC28V power module. The power filter filters the externally input AC220V, which is then converted to two DC28V channels by the DC12V power module and to two DC12V channels by the DC28V power module. The DC12V powers the communication conversion module, while the DC28V is processed by the power conversion output module and then used to power external devices.
[0017] The communication conversion module is a core component for signal acquisition and processing, sensor and actuator control, and equipment communication. It mainly includes an FPGA, PHY chip, isolated CAN transceiver, RS232 transceiver, and power supply chip.
[0018] The PHY chip connects to the FPGA and has two sets of four dual-redundant Ethernet interfaces for communication with the host computer. An isolated CAN transceiver connects to the FPGA and has 64 CAN bus interfaces for communication with sensors and actuators. These 64 CAN bus interfaces communicate with the backend sensors and actuators, reporting real-time collected information to the FPGA for processing, and then reporting it to the host computer via the network. Conversely, they transmit control commands from the host computer to each actuator to complete the execution of control commands. The 64 CAN bus interfaces are isolated, so an abnormality in any one CAN bus does not affect the normal communication of other CAN buses. An RS232 transceiver communication conversion module connects to the FPGA and has two RS232 interfaces for communication with the communication conversion module. A power supply chip connects to the FPGA to receive the DC12V output from the DC12V power module and power the FPGA.
[0019] The communication conversion module and the power conversion output module communicate via RS232. The FPGA converts the two RS232 channels of the power conversion output modules A / B into two sets of dual redundant Ethernet for communication with the host computer. Through this communication link, the 64 external power supply information (current, voltage, etc.) of the power conversion output module can be monitored and reported in real time. The host computer can also control the on / off of any external output (64 channels can be controlled independently).
[0020] The power conversion output module converts the single 28V output from the power module into 64 independent 28V external power outputs. It mainly includes an MCU and peripheral circuitry, an RS232 transceiver connected to the MCU and peripheral circuitry, and a DC28V×64 monitoring / protection output circuit. The MCU and peripheral circuitry monitor the 64 DC28V outputs in real time, and the monitoring information is reported to the host computer via RS232. The on / off state of each DC28V output can be controlled individually via RS232, and the 28V total output or DC12V output of power modules A / B can also be shut down via RS232.
[0021] like Figure 1As shown, power modules A / B receive external AC220V input. The DC12V converted by the DC12V power module supplies power to communication conversion modules A / B, and the DC28V converted by the DC28V power module supplies power to power conversion output modules A / B. Under normal use, as long as any power module is working, it can supply power to the communication conversion module and the power conversion output module. The power conversion output module converts the single DC28V input from power modules A / B into 64 DC28V outputs to the external circuit. Power conversion output module A prioritizes converting the DC28V from power module A and outputs it, and similarly, power conversion output module B prioritizes converting the DC28V from power module B and outputs it. The external outputs of the two modules are connected in parallel at the connector. By default, power conversion output module A is used for external power supply. In case of failure, it automatically switches to power conversion output module B. Users can also send commands through the respective RS232 interfaces of the power conversion output modules to select modules A / B for external power supply. The power conversion output module is designed with two RS232 interfaces to supply power to communication conversion modules A and B respectively. If one communication conversion module fails, the other communication conversion module can still communicate with both power conversion output modules. All 64 external outputs are designed with isolation and can be independently controlled through commands sent via RS232. Each output circuit is designed with an AD sampling controller to monitor the output information of each power supply in real time and report it via RS232. The communication conversion module converts the two RS232 ports of the power conversion output modules A / B into a set of two redundant Ethernet ports for communication with the host computer. Users can observe the working status of external sensors and actuators through the display interface of the host computer, and can also control the power supply on and off through the host computer. The communication conversion module is designed with 64 CAN ports to communicate with external sensors and actuators. The commands to be issued and the feedback work information are converted into a set of two redundant Ethernet ports for communication with the host computer after being encoded and decoded by FPGA.
[0022] Through the above design, the signal acquisition and control box can simultaneously power multiple external devices and collect and monitor the operating status of the devices in real time. It can also be controlled via the network, with a high degree of integration. The equipment adopts a modular design, which is convenient for maintenance. Each part of the internal system uses two modules with identical functions in an AB parallel design, with redundancy between each pair. If any module fails, the backup module will immediately take over. In other words, as long as one module in each part can work normally, the whole machine can work normally, which greatly increases the reliability of the system.
[0023] In addition, through RS232 communication between communication conversion module A and communication conversion module B, the data of the two are backed up for each other, and multiple operating conditions can be provided for customers to choose from.
[0024] In this embodiment, the power module operates under the following conditions: Operating Condition 1: The host computer sends commands via the network, which are encoded and decoded by the communication conversion module and then sent to the power conversion output module via RS232. The power conversion output module can control power module A to work while power module B's total output is turned off; and vice versa (power module B works while power module A is turned off).
[0025] Operating Condition 2: When there are many devices connected to the back end and the power consumption is high, the two power modules can also be controlled to output the same power at the same time.
[0026] The power conversion output module operates under the following conditions: Operating Condition 1: The host computer sends commands via the network, which are encoded and decoded by the communication conversion module and then controlled via RS232 to turn on all 64 DC28V outputs of the power conversion output module A (channels 1 to 64 can be selected according to actual conditions), while all 64 outputs of the power conversion output module B are turned off; and vice versa (power conversion output module B is working while power conversion output module A is off).
[0027] Operating Condition 2: The host computer sends commands via the network, which are encoded and decoded by the communication conversion module and then controlled via RS232 to turn on 32 DC28V external outputs in the power conversion output module A (the specific number of outputs can be controlled according to the actual operating conditions). The remaining 32 DC28V external outputs (the specific number of outputs can be controlled according to the actual operating conditions) are provided by the power conversion output module B.
[0028] Operating Condition 3: When one or more of the power supply lines have high power consumption, the host computer can control the power supply line with high power consumption to be jointly powered by power conversion output module A and power conversion output module B with the same power consumption.
[0029] The communication conversion module operates under the following conditions: Operating Condition 1: The host computer sends commands via the network to control the operation of communication conversion module A, while communication conversion module B is either in standby or powered off. When a module is woken up from standby or powered on, it immediately synchronizes the output information of the host computer to ensure the smooth execution of the control commands.
[0030] Operating Condition 2: Similarly, the communication conversion module B can be controlled to work, while the communication conversion module A is in standby or powered off; when a module is woken up from standby or powered on, it immediately synchronizes the information output by the host computer to ensure that the control commands are executed smoothly.
[0031] The above-mentioned module operating conditions can be arbitrarily arranged and combined according to the actual needs of customers to form new operating conditions, which can meet the usage requirements of different ship types and have high compatibility.
[0032] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely prisms of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.
Claims
1. A marine signal acquisition and control box, characterized in that: This includes power module A and power module B, which adopt A / B dual redundancy design and are connected in parallel; communication conversion module A and communication conversion module B; and power conversion output module A and power conversion output module B. Power module A and power module B are used to convert the received external AC220V into DC12V for powering communication conversion module A and communication conversion module B, and DC28V for powering power conversion output module A and power conversion output module B. Communication conversion module A and communication conversion module B are connected to the host computer, sensor and actuator respectively. They are used to process the real-time collected information and report it to the host computer, and to transmit the control commands of the host computer to the sensor and actuator to complete the execution of the control commands. Power conversion output module A and power conversion output module B are respectively connected to communication conversion module A and communication conversion module B via RS232 communication. They are used to convert DC28V into 64 independent DC28V outputs and to monitor the output information of the 64 independent DC28V outputs in real time and report it to the host computer through communication conversion module A and communication conversion module B, so as to control the on / off state of each DC28V output.
2. The marine signal acquisition and control box according to claim 1, characterized in that: Both power module A and power module B include a power filter, a DC12V power module connected to the power filter, and a DC28V power module.
3. A marine signal acquisition and control box according to claim 2, characterized in that: The DC12V power module supplies power to communication conversion module A and communication conversion module B by outputting two DC12V channels, while the DC28V power module supplies power to power conversion output module A and power conversion output module B by outputting two DC28V channels.
4. A marine signal acquisition and control box according to claim 3, characterized in that: Both communication conversion module A and communication conversion module B include: FPGA; The PHY chip connects to the FPGA and is used to communicate with the host computer. An isolated CAN transceiver, connected to the FPGA, is used for communication with sensors and actuators; The RS232 transceiver communication conversion module is connected to the FPGA and is used to communicate with the power conversion output module A and the communication conversion module B. The power chip, connected to the FPGA, is used to receive the DC12V output from the DC12V power module and power the FPGA.
5. A marine signal acquisition and control box according to claim 4, characterized in that: The PHY chip has two sets of 4 dual-redundant Ethernet interfaces, the isolated CAN transceiver has 64 CAN bus interfaces, and the RS232 transceiver has 2 RS232 interfaces.
6. A marine signal acquisition and control box according to claim 5, characterized in that: The 64-channel CAN bus interface on the isolated CAN transceiver is designed for isolation.
7. A marine signal acquisition and control box according to claim 4, characterized in that: Both power conversion output module A and power conversion output module B include an MCU and peripheral circuits, an RS232 transceiver connected to the MCU and peripheral circuits, and a DC28V×64 monitoring / protection output circuit.
8. A marine signal acquisition and control box according to claim 7, characterized in that: The power conversion output module RS232 transceiver is connected to the communication conversion module RS232 transceiver. The DC28V×64 monitoring / protection output circuit receives the DC28V output from the DC28V power modules in power module A and power module B, and converts it into 64 independent DC28V outputs.