CN108295387B - Rapid fault-tolerant transmission system for scanning data of power supply layer of proton treatment device - Google Patents
Rapid fault-tolerant transmission system for scanning data of power supply layer of proton treatment device Download PDFInfo
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- CN108295387B CN108295387B CN201810035945.5A CN201810035945A CN108295387B CN 108295387 B CN108295387 B CN 108295387B CN 201810035945 A CN201810035945 A CN 201810035945A CN 108295387 B CN108295387 B CN 108295387B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
- A61N5/1048—Monitoring, verifying, controlling systems and methods
- A61N5/1064—Monitoring, verifying, controlling systems and methods for adjusting radiation treatment in response to monitoring
- A61N5/1065—Beam adjustment
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
- A61N5/1048—Monitoring, verifying, controlling systems and methods
- A61N5/1064—Monitoring, verifying, controlling systems and methods for adjusting radiation treatment in response to monitoring
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
- A61N5/1048—Monitoring, verifying, controlling systems and methods
- A61N5/1071—Monitoring, verifying, controlling systems and methods for verifying the dose delivered by the treatment plan
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
- A61N5/1001—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy using radiation sources introduced into or applied onto the body; brachytherapy
- A61N2005/1019—Sources therefor
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
- A61N2005/1085—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy characterised by the type of particles applied to the patient
- A61N2005/1087—Ions; Protons
Abstract
The invention provides a fast fault-tolerant transmission system for scanning data of a power supply layer of a proton treatment device, which comprises the following components: the power supply control module controls the corresponding power supply to output corresponding current according to the received layer scanning data; the state interaction module is used for receiving trigger information sent by a peripheral treatment control system and sending feedback information to the treatment control system; and the state machine module receives the trigger information, reads corresponding layer scanning data in the peripheral relational database according to the energy data required by the current layer, then transmits the layer scanning data to the power supply control module, if one frame of layer scanning data has errors in the transmission process, the state machine module transmits the frame layer scanning data to the power supply control module again and records the error times, and when the error times are greater than a preset threshold value, the state machine module judges that a fault occurs and transmits error feedback information to the treatment control system through the state interaction module. The invention can meet the dynamic change requirement of power supply energy during layered scanning in the tumor treatment process.
Description
Technical Field
The invention relates to the field of proton treatment, in particular to a rapid fault-tolerant transmission system for scanning data of a power supply layer of a proton treatment device.
Background
The proton treatment accelerator generally comprises power supplies of various types, and the adjustment of the beam position and the beam energy is realized by dynamically setting different currents and voltages through a treatment control system, so that the control of the irradiation energy and the accuracy of the tumor part of a patient is finally completed. For a proton treatment accelerator, in order to achieve the purpose of rapid and accurate treatment, a tumor part is virtually sliced and layered firstly in the treatment process, then the energy of scanning rays is respectively regulated and controlled aiming at each layer, and the treatment of the whole tumor part is completed through the radiation accumulation of multi-layer scanning. Thus, in addition to the need for a universal power control function, the power supply requires an automatic change in the current output profile at a given time in accordance with the treatment energy requirements. Because of the different energy of each patient and different scanning layers, the part of waveform data must be downloaded into the power supply controller before the power supply is triggered to start outputting current, and the waveform data is used as the basis for the power supply to output automatically.
For this reason, the conventional method generally employs a CPU board and a data communication board based on a high-speed data transmission bus, such as vme (vme) (versamodule eurocard), and performs data exchange by using an optical fiber and a specific encoding method, such as manchester encoding, and using a real-time function and a power supply of a real-time operating system, such as a vxWorks system. The method is stable and reliable, but the cost is high, and the system is complex to realize.
Disclosure of Invention
In view of the above-mentioned deficiencies of the prior art, an object of the present invention is to provide a fast fault-tolerant transmission system for power plane scan data of a proton therapy apparatus, which can dynamically download and verify the power plane scan data at a high speed, and can perform state interaction with a therapy control system, so as to meet the dynamic change requirement of power supply energy during layered scanning in the tumor therapy process.
In order to achieve the purpose, the invention adopts the following technical scheme:
a fast fault tolerant transmission system for proton treatment device power plane scan data, comprising:
the power supply control module is arranged for controlling the corresponding power supply to output corresponding current according to the received layer scanning data;
the state interaction module is arranged for receiving trigger information sent by a peripheral treatment control system and sending feedback information to the treatment control system, wherein the trigger information comprises energy data required by a current layer;
and the state machine module is configured to receive the trigger information transmitted by the state interaction module, read corresponding layer scanning data in a peripheral relation database according to energy data required by a current layer in the trigger information, and transmit the layer scanning data to the power control module.
Furthermore, the power control module, the state interaction module and the state machine module are integrated in an embedded industrial personal computer.
Furthermore, the embedded industrial personal computer is connected with the treatment control system, the relational database and the power supply through the Ethernet.
Further, the status interaction module communicates with the therapy control system using a CA protocol.
Further, the state machine module is implemented by programming in a PYTHON language.
Furthermore, the power control module and the state interaction module are realized by adopting C language programming.
By adopting the technical scheme, the invention has the following beneficial effects:
the invention can dynamically download and check the scanning data of the power supply layer at high speed, can also carry out state interaction with a treatment control system, and meets the dynamic change requirement of the power supply energy during layered scanning in the tumor treatment process, thereby downloading the scanning data of the next layer to the power supply while the power supply outputs current according to the scanning data of the previous layer, and repeating the steps until the downloading and power supply output of all the scanning layer data are finally completed.
Drawings
FIG. 1 is a block diagram of a fast fault-tolerant transmission system for power plane scan data of a proton treatment device according to the present invention;
fig. 2 is a flow state diagram of the state machine module of fig. 1.
Detailed Description
In order to make the invention more comprehensible, preferred embodiments are described in detail below with reference to the accompanying drawings.
The invention discloses a rapid fault-tolerant transmission system for scanning data of a power supply layer of a proton treatment device, which comprises a power supply control module, a state interaction module and a state machine module which are sequentially connected as shown in figure 1, wherein:
the state interaction module is used for receiving trigger information sent by a superior treatment control system and sending feedback information to the treatment control system, wherein the trigger information comprises information such as energy data required by a current layer and indexes of a current treatment room, the feedback information is used for feeding back whether subsequent transmission operation is successful or wrong, if the feedback information is sent successfully, the treatment control system carries out subsequent treatment operation, and if not, other self-defined operation is carried out.
The state machine module is used for receiving the trigger information transmitted by the state interaction module, reading corresponding layer scanning data (the layer scanning data refers to a power supply waveform array corresponding to the energy data) stored in a peripheral relational database according to the energy data required by the current layer, then transmitting the layer scanning data to the power supply control module, transmitting the layer scanning data to a corresponding power supply through the power supply control module, outputting current of a corresponding waveform after each frame of data is received and verified to be correct by the power supply, returning correct transmission information through the power supply control module, and sending a successful feedback signal to the treatment control system through the state interaction module after the state machine module monitors that the correct transmission information is transmitted, so that the treatment control system can determine whether to continue a subsequent treatment process or not as a judgment condition. This process is repeated concurrently for multiple power supplies.
If one frame layer of scanning data of a single power supply has errors in the transmission process (the error judgment can be realized by adopting a common parity check method), the state machine module considers that the errors occur sporadically, transmits the frame layer scanning data to the power supply control module again and records the error times, and judges that the errors occur and sends error feedback information to the treatment control system for prompting through the state interaction module when the error times are larger than a preset threshold value, so that the waveform data transmitted to the power supply each time is stable and reliable, and medical accidents caused by data errors are prevented.
The whole process of the state machine module performs state migration in the state diagram shown in fig. 2 (state migration refers to that all possible states are listed in the state machine, only one state is currently in, and transition is performed between different states), and the use of the state machine method can increase the reliability of the system and also avoid the complexity of the system caused by a complicated condition judgment mode. In addition, all states can be displayed in real time through a human-computer interface, and error correction and state monitoring during debugging are facilitated. In fig. 2, PV represents a process variable and TCS represents a therapy control system.
In one embodiment of the invention, the power control module, the state interaction module and the state machine module are integrated in an embedded industrial personal computer, and a customized and cut LINUX operating system is preinstalled in the embedded industrial personal computer. Although the industrial personal computer has the characteristics of stability, reliability, strong anti-interference performance and the like, the operation speed is generally lower than that of a professional server, so that the performance of the industrial personal computer is not lower than that of the server by simplifying unnecessary components and services of an operating system. In the industrial personal computer, the power supply control module and the state interaction module are realized by C language programming, the state machine module is realized by PYTHON language programming, and the debugging time of the treatment device can be shortened and the accurate energy treatment of the proton treatment device can be ensured by utilizing the characteristics of simple modification, stability, reliability and the like of the PYTHON script language. When the device is used, the embedded industrial personal computer is accessed to the control network and is respectively connected with the treatment control system, the relational database and the power supply through the Ethernet.
In addition, the state interaction module can adopt a CA (CHANNELACCESS ) protocol specification conforming to EPICS (experimental physics and industrial control system) to communicate with the treatment control system, so that the EPICS control system can be seamlessly accessed into the Shanghai advanced proton treatment device, the stability and the ductility of the system are improved.
While specific embodiments of the invention have been described above, it will be understood by those skilled in the art that these are by way of example only and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.
Claims (6)
1. A fast fault tolerant transmission system for proton therapy device power plane scan data, comprising:
the power supply control module is arranged for controlling the corresponding power supply to output corresponding current according to the received layer scanning data;
the state interaction module is arranged for receiving trigger information sent by a peripheral treatment control system and sending feedback information to the treatment control system, wherein the trigger information comprises energy data required by a current layer;
and the state machine module is configured to receive the trigger information transmitted by the state interaction module, read corresponding layer scanning data in a peripheral relation database according to energy data required by a current layer in the trigger information, and transmit the layer scanning data to the power control module.
2. The system of claim 1, wherein the power control module, the state interaction module, and the state machine module are integrated into an embedded industrial personal computer.
3. The system of claim 2, wherein the embedded industrial personal computer is connected to the treatment control system, the relational database, and the power supply via ethernet.
4. The system of claim 1, wherein the status interaction module communicates with the treatment control system using a Channel Access (CA) protocol.
5. The system of claim 1, wherein the state machine module is implemented using PYTHON programming.
6. The system of claim 1, wherein the power control module and the state interaction module are implemented using C language programming.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN2018100048564 | 2018-01-03 | ||
| CN201810004856 | 2018-01-03 |
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| Publication Number | Publication Date |
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| CN108295387A CN108295387A (en) | 2018-07-20 |
| CN108295387B true CN108295387B (en) | 2020-02-21 |
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| CN201810035945.5A Active CN108295387B (en) | 2018-01-03 | 2018-01-15 | Rapid fault-tolerant transmission system for scanning data of power supply layer of proton treatment device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2065067U (en) * | 1989-01-31 | 1990-11-07 | 北京军区总医院 | Microcomputerized controller for medical co-60 therapeutic apparatus |
| US10363437B2 (en) * | 2008-12-11 | 2019-07-30 | Varian Medical Systems International Ag | Real time treatment parameter algorithm for moving targets |
| JP5670126B2 (en) * | 2010-08-26 | 2015-02-18 | 住友重機械工業株式会社 | Charged particle beam irradiation apparatus, charged particle beam irradiation method, and charged particle beam irradiation program |
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Effective date of registration: 20221209 Address after: 201800 Shanghai city Jiading District Road No. 2019 Patentee after: SHANGHAI INSTITUTE OF APPLIED PHYSICS, CHINESE ACADEMY OF SCIENCES Patentee after: Shanghai Alliance Investment Ltd. Address before: 201800 Shanghai city Jiading District Road No. 2019 Patentee before: SHANGHAI INSTITUTE OF APPLIED PHYSICS, CHINESE ACADEMY OF SCIENCES |
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Effective date of registration: 20230711 Address after: 201821 area a, first floor, building 2, No. 1411, Yecheng Road, Jiading District, Shanghai Patentee after: SHANGHAI AIPUQIANG PARTICLE EQUIPMENT Co.,Ltd. Address before: 201800 Shanghai city Jiading District Road No. 2019 Patentee before: SHANGHAI INSTITUTE OF APPLIED PHYSICS, CHINESE ACADEMY OF SCIENCES Patentee before: Shanghai Alliance Investment Ltd. |