Real-time communication network for medical linear accelerator control system
A linear accelerator, real-time communication technology, applied in the field of medical devices, can solve problems such as inability to achieve on-demand synchronization, poor flexibility and scalability, and calculation errors
Active Publication Date: 2019-09-20
NEW JOURNEY MEDICAL ACCELERATOR WUXI CO LTD
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[0003] The medical linear accelerator system is composed of a main control unit and general node units with different functions. The main control unit refers to the central computer (or processor) with command, management and control capabilities. The general node unit refers to the rack Motion control unit, image acquisition unit, dose generation unit, dose monitoring unit, bed motion control unit and other units, the above-mentioned units generally adopt a centralized control mode, and each subsystem controls each other through hardware connections. The disadvantages of this system The flexibility and scalability of the system are relatively poor. In comparison, the distributed system based on the network topology has more advantages in the flexibility and scalability of the system. How to solve the real-time and clock synchronization problems of the distributed network topology is the focus of this application
[0004] At present, real-time networks based on distributed network topologies include network topologies such as EtherCat and PowerLink. The clock synchronization adopts the method of Ethernet frame and transmission delay compensation. The above two methods introduce certain calculation errors. At the same time, the time synchronization of the aforementioned network adopts the method of timing synchronization, which cannot achieve on-demand synchronization.
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[0041] 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 clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.
[0042] In this application, "system", "device", "module", etc. refer to related entities applied to computers, such as hardware, a combination of hardware and software, software or softwar...
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The application discloses a real-time communication network for medical linear accelerator control system. The real-time communication network comprises a main control node unit and a plurality of universal node units, wherein the universal node units are in communication connection with the main control node unit through a time sequence bus, an Ethernet and a CAN bus; the main node unit is configured to communicate with the plurality of universal node units via the time sequence bus. According to the embodiment of the invention, the time sequence bus is introduced, and the problem of transmission delay and calculation error caused by synchronization of the existing real-time network by virtue of Ethernet frames is solved by adopting a hardware connection mode.
Description
technical field [0001] The present application relates to the technical field of medical devices, in particular to a real-time communication network for a medical linear accelerator control system. Background technique [0002] Medical electron accelerators have the characteristics of low risk, small organ damage and flexible orientation, and have become the recommended treatment plan for cancer patients. [0003] The medical linear accelerator system is composed of a main control unit and general node units with different functions. The main control unit refers to the central computer (or processor) with command, management and control capabilities. The general node unit refers to the rack Motion control unit, image acquisition unit, dose generation unit, dose monitoring unit, bed motion control unit and other units, the above-mentioned units generally adopt a centralized control mode, and each subsystem controls each other through hardware connections. The disadvantages of...
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IPC IPC(8): G05B19/042H04L12/40
CPCG05B19/0423G05B2219/23051H04L12/40H04L2012/40215
Inventor 陈亮徐高松
Owner NEW JOURNEY MEDICAL ACCELERATOR WUXI CO LTD