Data acquisition card and superconducting acquisition system

Abstract

The utility model relates to the technical field of power electronics, and discloses a data acquisition card and a superconducting acquisition system, and the data acquisition card comprises an EtherCAT slave station daughter card and a CPLD module. The EtherCAT slave station daughter card comprises an EtherCAT slave station controller, an internet access module and a storage module, and the internet access module is connected with the EtherCAT slave station controller and is connected to other EtherCAT slave station daughter cards or the master station; the storage module is connected with the EtherCAT slave station controller; and the EtherCAT slave station controller is in communication connection with the CPLD module. Data acquisition card communication is achieved through the EtherCAT protocol, modules with different functions can be flexibly selected according to specific requirements, the EtherCAT protocol has high-speed data transmission capacity, and accuracy and reliability of an acquisition system in the real-time control and monitoring process are guaranteed. The EtherCAT slave station controller is in communication connection with the CPLD module, and the CPLD module can flexibly select different signal transmission protocols according to specific requirements. In the face of different application scenes, rapid adaptation and configuration can be realized, and the flexibility and compatibility requirements of the system are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power electronics, and particularly relates to a data acquisition board and a superconducting acquisition system. BACKGROUND

[0002] In the technical field of superconducting, it is usually necessary to use an acquisition system to collect various superconducting parameters in real time to monitor and collect them in real time, so as to facilitate the analysis and prediction of the performance of a superconducting structure. For example, in a superconducting fusion device, the performance of a superconducting magnet made of superconducting material needs to be detected to ensure the normal operation of the entire fusion device.

[0003] In the application scenario of a superconducting fusion device, there is a real-time monitoring and control requirement of high-speed transmission data and accurate time synchronization in a superconducting acquisition system, so as to ensure the accurate coordination of all devices in the system. For example, a variety of sensors (such as temperature sensors, electromagnetic field sensors, and current sensors) exist in the superconducting acquisition system, and the data in the various sensors need to be collected synchronously, and the data acquisition and control process needs to be able to adapt to a complex nuclear fusion experiment environment to ensure the stable operation of the system.

[0004] Therefore, how to ensure the stable operation of the superconducting acquisition system becomes a technical problem to be solved. CONTENT OF THE INVENTION

[0005] Therefore, the present application provides a data acquisition card and a superconducting acquisition system to solve the technical problem of how to ensure the stable operation of the superconducting acquisition system in the related art.

[0006] According to a first aspect, the present application provides a data acquisition card, comprising: an EtherCAT slave station sub-card and a CPLD module; the EtherCAT slave station sub-card comprises an EtherCAT slave station controller, a network port module, and a storage module, wherein the network port module is connected to the EtherCAT slave station controller and connected to other EtherCAT slave station sub-cards or a master station; the storage module is connected to the EtherCAT slave station controller; and the EtherCAT slave station controller is in communication connection with the CPLD module.

[0007] In an embodiment, the EtherCAT slave station controller is integrated with an Ethernet PHY.

[0008] In an embodiment, the network port module comprises an RJ-45 network port.

[0009] In an embodiment, the RJ-45 network port is two.

[0010] In an embodiment, the EtherCAT slave sub-card further comprises a power module connected to the EtherCAT slave controller, the network interface module and the storage module respectively.

[0011] In an embodiment, the power module comprises a power stabilizing chip, an input end of the power stabilizing chip being connected to an input power supply, and output ends of the power stabilizing chip being connected to power supply ends of the EtherCAT slave controller, the network interface module and the storage module respectively.

[0012] In an embodiment, the EtherCAT slave controller and the storage module communicate through an I2C bus.

[0013] In an embodiment, the data acquisition card further comprises a crystal oscillator for providing a working clock for the EtherCAT slave controller.

[0014] According to a second aspect, the embodiments of the present application provide a superconducting acquisition system, comprising: a plurality of data acquisition cards according to any one of the first aspect; and the plurality of data acquisition cards and the data acquisition cards and a master station communicate through an EtherCAT protocol.

[0015] The present application has at least the following beneficial effects:

[0016] The application provides a data acquisition card, comprising: an EtherCAT slave station subcard and a CPLD module; the EtherCAT slave station subcard comprises an EtherCAT slave station controller, a network interface module and a storage module, wherein the network interface module is connected with the EtherCAT slave station controller and connected to other EtherCAT slave station subcards or a master station; the storage module is connected with the EtherCAT slave station controller; and the EtherCAT slave station controller is in communication connection with the CPLD module. The EtherCAT protocol is implemented in the form of a slave station subcard, and the superconducting acquisition system can flexibly select modules with different functions according to specific needs, so that the system can be quickly expanded or adjusted according to actual conditions without changing the architecture of the entire system. The EtherCAT slave station subcard can be connected through a standardized Ethernet interface, reducing the complex wiring requirements. The EtherCAT protocol itself has extremely low communication delay and high-speed data transmission capability, and the subcard can support high-frequency data acquisition and real-time transmission, ensuring the accuracy and reliability of the superconducting acquisition system in real-time control and monitoring. The EtherCAT slave station subcard can quickly respond to changes in the system, ensuring efficient data exchange and timely processing. The EtherCAT protocol supports redundant topology and fault diagnosis functions, and the subcard can provide system-level high reliability through these features. Even if a subcard fails, the system can continue to operate, minimizing downtime and production interruptions. The EtherCAT protocol has strong real-time performance and precise time synchronization function, and the subcard can be highly synchronized with other devices in the system, ensuring data consistency and accuracy. It can ensure the high-precision data acquisition and control required by the superconducting system. The EtherCAT slave station subcard complies with open standards and has wide compatibility, and the EtherCAT slave station controller is in communication connection with the CPLD module, and the CPLD module can flexibly select different signal transmission protocols according to specific needs. This flexibility allows quick adaptation and configuration when facing different application scenarios, so that the most suitable hardware and devices can be selected first without being limited by specific manufacturers, improving the flexibility and compatibility requirements of the system.

[0017] The embodiment of the present application provides a superconducting acquisition system, comprising: a plurality of data acquisition cards described in the above embodiment; and a plurality of the data acquisition cards and the data acquisition card and a host station communicate through an EtherCAT protocol. The EtherCAT protocol is used for realizing communication of the data acquisition card, the acquisition system can flexibly select modules with different functions according to specific requirements, so that the acquisition system can be quickly expanded or adjusted according to actual conditions without changing the architecture of the whole system. The data acquisition card of the EtherCAT protocol can be connected through a standardized Ethernet interface, reducing the complex wiring requirements. The EtherCAT protocol itself has extremely low communication delay and high-speed data transmission capacity, ensuring the accuracy and reliability of the superconducting acquisition system in the real-time control and monitoring process. The EtherCAT protocol supports a redundant topology and a fault diagnosis function, can provide high reliability at the system level, and maximizes downtime and production interruption. The EtherCAT protocol has strong real-time performance and accurate time synchronization function, ensures the consistency and accuracy of the data of the acquisition system, and further ensures the stable operation of the superconducting acquisition system. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the specific embodiments of the present application or the prior art, the drawings needed in the description of the specific embodiments or the prior art will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0019] Figure 1 It is a modular schematic diagram of the data acquisition card according to the embodiment of the present application.

[0020] Figure 2 It is a modular schematic diagram of another data acquisition card according to the embodiment of the present application.

[0021] Figure 3 It is a schematic circuit principle diagram of a network module according to the embodiment of the present application.

[0022] Figure 4 It is a schematic circuit principle diagram of a power module according to the embodiment of the present application.

[0023] Figure 5 It is a schematic circuit principle diagram of a storage module according to the embodiment of the present application. DETAILED DESCRIPTION

[0024] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0025] According to the embodiments of the present application, a data acquisition card is provided, and a plurality of data acquisition cards can build a superconducting acquisition system, for example, as shown in the figure. Figure 1 As shown in the figure, the data acquisition card comprises an EtherCAT slave station sub-card 10 and a CPLD module 20; the EtherCAT slave station sub-card 10 comprises an EtherCAT slave station controller 11, a network port module 12 and a storage module 13, wherein the network port module 12 is connected with the EtherCAT slave station controller 11 and connected to other EtherCAT slave station sub-cards 10 or a master station; the storage module 13 is connected with the EtherCAT slave station controller 11; and the EtherCAT slave station controller 11 is in communication connection with the CPLD module 20.

[0026] In the embodiment, the EtherCAT slave station sub-card 10 is connected with external EtherCAT slave station sub-cards 10 or a master station through a network port, the EtherCAT slave station controller 11 is responsible for processing EtherCAT data frames and providing a data interface for the CPLD. The EtherCAT slave station sub-card 10 can be connected with external devices through one or more network ports. The EtherCAT slave station controller 11 performs data reading and writing with the storage module 13 through an I2C protocol, wherein Figure 5 A circuit principle diagram of the storage module 13 is shown in the figure.

[0027] The EtherCAT protocol is implemented in the form of EtherCAT slave sub-cards 10, and the superconducting acquisition system can flexibly select modules with different functions according to specific needs, so that it can be quickly expanded or adjusted according to actual conditions without changing the entire system architecture. The hardware architecture of the entire system is more modular, and the replacement of any EtherCAT slave sub-card 10 does not need to stop the operation of the entire system. This makes the maintenance of the system more convenient, and when a fault occurs, only the single EtherCAT slave sub-card 10 needs to be replaced or repaired, saving downtime and reducing maintenance costs. The EtherCAT slave sub-cards 10 can be connected through a standardized Ethernet interface, reducing the complex wiring requirements. Each EtherCAT slave sub-card 10 can communicate with other devices through a single EtherCAT bus, avoiding the use of long and complex cables and connectors in traditional systems. This not only helps to simplify hardware installation, but also effectively reduces electromagnetic interference and improves system stability. The EtherCAT protocol itself has extremely low communication delay and high-speed data transmission capability, and the EtherCAT slave sub-card 10 can support high-frequency data acquisition and real-time transmission, ensuring the accuracy and reliability of the superconducting acquisition system in real-time control and monitoring processes. The EtherCAT slave sub-card 10 can quickly respond to changes in the system to ensure efficient data exchange and timely processing. The EtherCAT protocol supports redundant topology and fault diagnosis functions, and the EtherCAT slave sub-card 10 can provide system-level high reliability through these features. Even if a certain EtherCAT slave sub-card 10 fails, the system can still continue to operate, minimizing downtime and production interruptions. The EtherCAT protocol has strong real-time and precise time synchronization functions, and the EtherCAT slave sub-card 10 can be highly synchronized with other devices in the system to ensure data consistency and accuracy. It can ensure the high-precision data acquisition and control required by the superconducting system. The EtherCAT slave sub-card 10 complies with open standards and has wide compatibility, and the EtherCAT slave controller 11 is in communication with the CPLD module 20, and the CPLD module 20 can flexibly select different signal transmission protocols according to specific needs. This flexibility allows quick adaptation and configuration when facing different application scenarios, so that the most suitable hardware and devices can be selected first without being limited by specific manufacturers, improving the flexibility and compatibility requirements of the system.

[0028] In an embodiment, the EtherCAT slave controller 11 is integrated with an Ethernet PHY, and the network interface module 12 includes an RJ-45 network interface. Referring to Figure 3The RJ-45 network port circuit principle diagram is shown, in the embodiment, the EtherCAT slave station controller 11 can be integrated with the physical layer interface PHY of the Ethernet, and correspondingly, the RJ-45 network port can be configured with two, the Ethernet PHY and the network transformer together constitute a network interface, which is connected with the master station and other EtherCAT slave station sub-cards 10 through the RJ45 network port connector. The network port module 12 can also use an RJ-11 network port, a fiber network port and the like.

[0029] In an embodiment, as shown in Figure 2 and Figure 4 The EtherCAT slave station sub-card 10 further includes a power supply module 14 connected with the EtherCAT slave station controller 11, the network port module 12 and the storage module 13 respectively, the power supply module 14 includes a power supply stabilizing chip, an input end of the power supply stabilizing chip is connected with an input power supply, and output ends of the power supply stabilizing chip are connected with power supply ends of the EtherCAT slave station controller 11, the network port module 12 and the storage module 13 respectively. In the embodiment, the power supply stabilizing chip provides a stable power supply voltage of 3.3V for the EtherCAT slave station controller 11, the network port module 12 and the storage module 13.

[0030] In an embodiment, the EtherCAT slave station sub-card 10 further includes a crystal oscillator, which can provide a precise working clock for the EtherCAT slave station controller 11, in the embodiment, a 25MHz crystal oscillator can be used to realize a synchronization mechanism, so as to ensure that all devices in the system are accurately coordinated to run, and data inconsistency caused by time drift is avoided.

[0031] The embodiment of the application further provides a superconducting acquisition system, characterized by comprising: a plurality of data acquisition cards described in the above embodiments; and a plurality of the data acquisition cards and the data acquisition card and the master station communicate through the EtherCAT protocol.

[0032] The data acquisition card communication is realized through the EtherCAT protocol. The acquisition system can flexibly select modules with different functions according to specific needs, so as to be quickly expanded or adjusted according to actual conditions without changing the architecture of the entire system. The data acquisition card of the EtherCAT protocol can be connected through a standardized Ethernet interface, reducing the complex wiring requirements. The EtherCAT protocol itself has extremely low communication delay and high-speed data transmission capability, ensuring the accuracy and reliability of the superconducting acquisition system in real-time control and monitoring processes. The EtherCAT protocol supports redundant topology and fault diagnosis functions, providing high reliability at the system level, minimizing downtime and production interruptions. The EtherCAT protocol has strong real-time performance and precise time synchronization function, ensuring the consistency and accuracy of the data of the acquisition system, thereby ensuring the stable operation of the superconducting acquisition system.

[0033] It should be noted that the data acquisition card and the superconducting acquisition system provided by the embodiments of the present application can also be used in other superconducting parameter acquisition scenarios, which are not limited by the present application.

[0034] In several embodiments provided in the present application, it should be understood that the disclosed client can be implemented by other ways. Among them, the device embodiments described above are only schematic, for example, the division of units is only a logical function division, and actual implementation can have another division manner, for example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the displayed or discussed each other can be through some interface, indirect coupling or communication connection between units or modules, which can be electrical or other forms.

[0035] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they can be located in one place or distributed on multiple network units. Part or all of the units can be selected to achieve the purpose of the scheme provided in the embodiments according to actual needs.

[0036] In addition, the functional units in each embodiment of the present application can be integrated in one processing unit, or each unit can exist physically, or two or more units can be integrated in one unit. The above integrated unit can be realized in the form of hardware or software functional unit.

[0037] In the above embodiments of the present application, the description of each embodiment has its own emphasis, and the parts not described in detail in a certain embodiment can be referred to the relevant description of other embodiments.

[0038] The above merely preferred embodiments of the present application, it should be noted that for those of ordinary skill in the art, without departing from the principles of the present application, can make several improvements and refinements, these improvements and refinements should also be considered as the scope of protection of the present application.

Claims

1. A data acquisition card, characterized in that, include: EtherCAT slave card and CPLD module; The EtherCAT slave card includes an EtherCAT slave controller, a network port module, and a storage module. The network port module is connected to the EtherCAT slave controller and can also be connected to other EtherCAT slave cards or the master station. The storage module is connected to the EtherCAT slave controller; The EtherCAT slave controller is communicatively connected to the CPLD module.

2. The data acquisition card as described in claim 1, characterized in that, The EtherCAT slave controller integrates an Ethernet PHY.

3. The data acquisition card as described in claim 1 or 2, characterized in that, The network port module includes an RJ-45 network port.

4. The data acquisition card as described in claim 3, characterized in that, There are two RJ-45 network ports.

5. The data acquisition card as described in claim 1, characterized in that, The EtherCAT slave card also includes: The power supply module is connected to the EtherCAT slave controller, the network port module, and the storage module, respectively.

6. The data acquisition card as described in claim 5, characterized in that, The power module includes a power regulator chip. The input terminal of the power regulator chip is connected to the input power supply, and the output terminal of the power regulator chip is connected to the power supply terminals of the EtherCAT slave controller, the network port module, and the storage module, respectively.

7. The data acquisition card as described in claim 1, characterized in that, The storage modules of the EtherCAT slave controller communicate with each other via an I2C bus.

8. The data acquisition card as described in claim 1, characterized in that, Also includes: A crystal oscillator is used to provide the operating clock for the EtherCAT slave controller.

9. A superconducting data acquisition system, characterized in that, include: Multiple data acquisition cards as described in any one of claims 1-8; The multiple data acquisition cards communicate with each other and with the master station via the EtherCAT protocol.

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