CN115105760B - Control system of boron neutron capture treatment equipment - Google Patents

Control system of boron neutron capture treatment equipment Download PDF

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Publication number
CN115105760B
CN115105760B CN202211029258.5A CN202211029258A CN115105760B CN 115105760 B CN115105760 B CN 115105760B CN 202211029258 A CN202211029258 A CN 202211029258A CN 115105760 B CN115105760 B CN 115105760B
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control
server
control system
central control
equipment
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CN115105760A (en
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顾龙
苏兴康
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Lanzhou University
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Lanzhou University
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61NELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00Radiation therapy
    • A61N5/10X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
    • A61N5/1048Monitoring, verifying, controlling systems and methods
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61NELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00Radiation therapy
    • A61N5/10X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
    • A61N5/1001X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy using radiation sources introduced into or applied onto the body; brachytherapy
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61NELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00Radiation therapy
    • A61N5/10X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
    • A61N5/1048Monitoring, verifying, controlling systems and methods
    • A61N2005/1074Details of the control system, e.g. user interfaces
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61NELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00Radiation therapy
    • A61N5/10X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
    • A61N2005/1085X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy characterised by the type of particles applied to the patient
    • A61N2005/109Neutrons
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61NELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00Radiation therapy
    • A61N5/10X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
    • A61N2005/1092Details
    • A61N2005/1098Enhancing the effect of the particle by an injected agent or implanted device
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/02Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

Abstract

The application discloses a control system of boron neutron capture treatment equipment. The system is constructed based on a B/S architecture and comprises a central control server; the central control server is in communication connection with control modules corresponding to a plurality of subsystems of BNCT equipment respectively; and the central control server is used for responding to the received equipment control request to generate an equipment control instruction and sending the equipment control instruction to the target control module corresponding to the equipment control request so as to enable the target control module to control the corresponding subsystem to execute the operation corresponding to the equipment control request. The whole control system is constructed based on the B/S architecture, so that the flexibility is high, and the efficiency of upgrading or maintaining the BNCT equipment by the control system is improved.

Description

Control system of boron neutron capture treatment equipment
Technical Field
The application relates to the technical field of medical equipment, in particular to a control system of boron neutron capture treatment equipment.
Background
Boron Neutron Capture Therapy (BNCT) destroys cells by nuclear reactions in tumor cells. The specific principle is as follows: a special compound containing boron is injected into a patient, has strong affinity with cancer cells, can quickly gather in the cancer cells after entering a human body, is rarely distributed in other tissues, and is irradiated by an epithermal neutron ray, so that neutrons and boron entering the cancer cells can have strong nuclear reaction to release a ray with extremely strong lethality, and the ray has a short range and is only as long as one cancer cell. Therefore, only cancer cells are killed, and surrounding tissues are not damaged.
The existing equipment for boron neutron capture therapy is more, and a control system written based on a C/S (client/server) architecture is generally utilized. Control systems written by software parts of the adopted C/S architecture are mutually coupled on the deployment of control modules, and are inconvenient to maintain. For example, when a device is damaged, the work of the whole system is often affected, and great inconvenience is brought to maintenance and upgrading.
Disclosure of Invention
Based on the above problems, the present application provides a control system of a boron neutron capture treatment device to solve the problems of poor control flexibility and inconvenient equipment maintenance of the control system of the boron neutron capture treatment device.
The embodiment of the application discloses the following technical scheme:
the embodiment of the application provides a control system of boron neutron capture treatment equipment, which is constructed based on a B/S architecture and comprises a central control server; the central control server is in communication connection with control modules corresponding to a plurality of subsystems of the boron neutron capture therapy BNCT equipment respectively; the plurality of subsystems includes: the system comprises a medical bed, a stopper, a shielding door, a neutron detector and an accelerator control system;
the central control server is used for responding to the received equipment control request to generate an equipment control instruction, and sending the equipment control instruction to a target control module corresponding to the equipment control request, so that the target control module controls a corresponding subsystem to execute an operation corresponding to the equipment control request.
Optionally, the control module corresponding to the medical bed is a medical bed control cabinet; the central control server is in communication connection with the medical bed control cabinet through a TCP/IP-HTTPs protocol; the medical bed control cabinet is communicated with the medical bed through analog signals;
the central control server is specifically configured to obtain coordinate information according to an equipment control request for the medical bed, where the coordinate information is used to control movement of the medical bed; and sending the coordinate information to the medical bed control cabinet, so that the medical bed control cabinet performs coordinate conversion according to the coordinate information to obtain motion information of each axis of the medical bed, and sending the motion information to the medical bed through an analog signal.
Optionally, a sensor is arranged on the hospital bed, and the sensor is used for sending the acquired data to the hospital bed control cabinet;
the central control server is also used for receiving data obtained by converting the medical bed control cabinet according to the data sent by the sensor.
Optionally, the control module corresponding to the blocker is a first control box, and the first control box is in communication connection with the central control server through a TCP/IP-OPCUA protocol; the first control box is connected with an enabling button of the stopper; the first control box is in analog signal communication with the stopper;
the first control box is specifically used for responding to a device control instruction which is sent by the central control server and aims at the blocker when the enable button is in a pressed state; and when the enabling button is not in the pressed state, not responding to a device control instruction which is sent by the central control server and aims at the blocker, and returning an error code to the central control server.
Optionally, the control module corresponding to the shield door is a second control box, and the second control box is in communication connection with the central control server through a TCP/IP-opuca protocol; the second control box is connected with an enabling button of the shielding door; the second control box is communicated with the shielding door through analog signals;
the second control box is specifically used for responding to a device control instruction which is sent by the central control server and aims at the shield door when the enable button is in a pressed state; and when the enabling button is not in the pressed state, not responding to a device control instruction which is sent by the central control server and aims at the shielded door, and returning an error code to the central control server.
Optionally, the control module corresponding to the neutron detector is a third control box, and the third control box is in communication connection with the central control server through a TCP/IP-OPCUA protocol; the third control box is in analog signal communication with the neutron detector;
the central control server is specifically configured to write a dose required for treatment to the third control box according to an equipment control request for the neutron detector;
the central control server is further configured to receive treatment completion information returned by the third control box, and the treatment completion information is sent to the central control server by the third control box when the count of the neutron detector reaches the dose required by treatment.
Optionally, a control module corresponding to the accelerator control system is subordinate to the accelerator control system; the central control server is in communication connection with a control module corresponding to the accelerator control system by adopting a TCP/IP-socket protocol;
in the BNCT device therapy, the central control server is specifically configured to establish a dual-wavelength connection with a control module corresponding to the accelerator control system in a therapy preparation stage, generate a device manipulation instruction in response to a received device manipulation request for the accelerator control system after starting therapy, and send the device manipulation instruction to the control module corresponding to the accelerator control system to apply for a beam or stop a beam.
Optionally, the multiple subsystems further include an image guidance system, and the image guidance system is in communication connection with the central control server through a TCP/IP-socket protocol;
when the BNCT equipment is used for treating, the central control server is used for establishing a duplex long connection with the image guidance system and controlling the medical bed to move to a treatment position under the guidance of the image guidance system.
Optionally, the image guidance system comprises an image acquisition device for acquiring position information of the patient;
the image guidance system is specifically used for obtaining the position deviation of the patient reaching the treatment position according to the position information and sending the position deviation to the central control server;
the central control server is specifically used for controlling the medical bed to move to a treatment position according to the position deviation.
Optionally, the image guidance system further comprises an exposure controller;
the image acquisition device is configured to allow activation of a radiation exposure function of the image acquisition device on the premise that the exposure controller is pressed.
Optionally, the enable buttons and motion buttons of the plurality of subsystems are integrated on a control panel; the control panel is in communication connection with the central control server;
the control panel is configured to require a key to be inserted and the key to be turned on to power up prior to use.
Optionally, the blocker, the medical bed and the screen door are each configured to allow an operation to be performed after both an enable button and a motion button on the control panel are pressed.
Optionally, the control panel further comprises a beam-out button; the accelerator control system is configured to turn on beam current after both an enable button and a beam-out button on the control panel are pressed.
Optionally, the control panel further comprises a pause and restart button;
the pause and restart button is configured to be pressed to stop all actions controlled by the control system or to resume all actions controlled by the control system.
Optionally, the control panel further comprises an emergency stop button;
the scram button is configured to be pressed to stop all actions controlled by the control system and to forcibly restart the control system.
Optionally, the control system further comprises: the database server is in communication connection with the central control server through a TCP/IP protocol;
the database server stores data used for indexing and storage paths of files.
Optionally, the operation interface of the control system is compiled based on a web architecture; the control system further comprises: a client operating in a client device; the client is in communication connection with the central control server through two protocols of TCP/IP-HTTPs and TCP/IP-socket modes;
if the client initiates a request for a database, the central control server communicates with the client through a TCP/IP-HTTPs protocol;
if the client initiates an equipment control request for the BNCT equipment, the central control server communicates with the client through a TCP/IP-socket protocol; the central control server is further used for locking the link of the client side until the client side actively releases the link while establishing socket duplex connection with the client side.
Compared with the prior art, the method has the following beneficial effects:
the control system of the boron neutron capture treatment equipment is characterized by being constructed based on a B/S framework and comprising a central control server; the central control server is in communication connection with control modules corresponding to a plurality of subsystems of the boron neutron capture treatment BNCT equipment respectively; the plurality of subsystems includes: the system comprises a medical bed, a stopper, a shielding door, a neutron detector and an accelerator control system; and the central control server is used for responding to the received equipment control request to generate an equipment control instruction, and sending the equipment control instruction to the target control module corresponding to the equipment control request so as to enable the target control module to control the corresponding subsystem to execute the operation corresponding to the equipment control request. The whole control system is constructed based on the B/S architecture, the control system is relatively independent to the control of each hardware part of the BNCT equipment, unified scheduling is carried out through the central control server, and when any one or even all hardware of the BNCT equipment needs to be maintained or upgraded, only the corresponding control part needs to be operated, so that the whole system has higher flexibility, and the efficiency of upgrading or maintaining the BNCT equipment by the control system is improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a schematic view illustrating a communication connection between a control system of a BNCT apparatus and a subsystem of the BNCT apparatus according to an embodiment of the present application;
FIG. 2A is a schematic illustration of a communication connection between a control system of another BNCT apparatus and a subsystem of the BNCT apparatus according to an embodiment of the present application;
FIG. 2B is a schematic diagram of a control panel;
fig. 2C is a schematic structural diagram of a BNCT apparatus according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a control system of a BNCT apparatus according to an embodiment of the present application;
FIG. 4 is a schematic diagram of a client-side operation interface based on a web architecture.
Detailed Description
As described above, the control system of the current BNCT equipment for boron neutron capture therapy generally adopts a C/S architecture, and the control deployment is difficult to meet the requirements of flexible control upgrade and maintenance of the BNCT equipment. In order to solve the problem, the control system of the BNCT device provided in the embodiment of the present application is constructed by using a B/S architecture, so that the control system controls each hardware part of the BNCT device relatively independently and is scheduled by the central control server in a unified manner. In order to avoid the situation that the operating equipment does not timely injure the patient when a worker operates each equipment for too long time or in an emergency, the control system controls various equipment, so that the operating time can be shortened, the operation can be stopped timely when an emergency happens, and the patient is guaranteed not to be injured.
In order to make the technical solutions of the present application better understood, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
FIG. 1 is a schematic illustration of a communication connection between a control system of a BNCT apparatus and a subsystem of the BNCT apparatus according to an embodiment of the present application. In the present application, a BNCT apparatus includes a plurality of subsystems, such as the couch, the barrier, the shield door, the neutron detector, and the accelerator control system shown in fig. 1. The accelerator control system may specifically include a beam generator. The control system is constructed based on a B/S architecture and comprises a central control server. The central control server is in communication connection with control modules corresponding to a plurality of subsystems of the boron neutron capture treatment BNCT equipment respectively. In the embodiment of the application, the control module corresponding to the medical bed is a medical bed control cabinet; the control modules corresponding to the stopper, the shielding door and the neutron detector are respectively a first control box, a second control box and a third control box. And the control module corresponding to the accelerator control system is subordinate to the accelerator control system. The first control box, the second control box and the third control box can independently exist respectively, and can also be integrated in one cabinet.
The communication mode of the central control server and the control module is exemplarily described below. The central control server is in communication connection with the medical bed control cabinet through a TCP/IP-HTTPs protocol; the medical bed control cabinet is communicated with the medical bed through analog signals; the first control box is in communication connection with the central control server through a TCP/IP-OPCUA protocol; the second control box is in communication connection with the central control server through a TCP/IP-OPCUA protocol; the third control box is in communication connection with the central control server through a TCP/IP-OPCUA protocol; and the control modules corresponding to the central control server and the accelerator control system are in communication connection by adopting a TCP/IP-socket protocol.
The central control server is used for responding to the received equipment control request to generate an equipment control instruction, and sending the equipment control instruction to a target control module corresponding to the equipment control request, so that the target control module controls a corresponding subsystem to execute an operation corresponding to the equipment control request.
For example, if the received device control request is a device operation request for the screen door, the central control server may control the screen door to execute a corresponding operation by sending a device control instruction corresponding to the second control box.
The whole control system is constructed based on the B/S architecture, the control system is relatively independent to the control of each hardware part of the BNCT equipment, unified scheduling is carried out through the central control server, and when any one or even all hardware of the BNCT equipment needs to be maintained or upgraded, only the corresponding control part needs to be operated, so that the whole system has higher flexibility, and the efficiency of upgrading or maintaining the BNCT equipment by the control system is improved.
The following describes the interaction between each subsystem and the central control server.
(1) Medical bed
The hospital bed used in the BNCT device of the present application is a six-axis hospital bed which has a total of six movable axes, and has a maximum positioning error of 0.2mm and a maximum angular error of 0.2 ° in spatial coordinates. The medical bed is mainly used for delivering a patient to a designated position for treatment, so that the positioning accuracy is very important, and the medical bed is connected with the central control server through the medical bed control cabinet. A set of algorithms for converting coordinates is built into the hospital bed control cabinet.
The central control server is specifically configured to obtain coordinate information according to an equipment control request for the medical bed, where the coordinate information is used to control movement of the medical bed; and sending the coordinate information to the medical bed control cabinet so as to enable the medical bed control cabinet to perform coordinate conversion according to the coordinate information. The medical bed control cabinet can obtain motion information of each axis of the medical bed according to coordinate information based on a built-in coordinate conversion algorithm, and sends the motion information to the medical bed through an analog signal.
In addition, still some sensors on the medical bed also link to each other with the medical bed control cabinet, and the data that the sensor was gathered can be sent to the medical bed control cabinet. The hospital bed control cabinet converts the received sensor data into data that can be identified, referenced, or used by other devices. The hospital bed control cabinet sends part or all of the converted data which is valuable to the central control server so that the central control server can know the data which is collected by the hospital bed sensor and related to the patient. Such as the patient's position, posture, facial orientation, body temperature, etc.
The sensor, the shaft, the safety interlocking equipment of the medical bed and the medical bed control cabinet are connected through independent lines, and are not interfered with each other and not influenced by each other. In addition, a set of safety logic program independent of the central control server is arranged in the medical bed control cabinet, and under some accident conditions (such as collision and the like), the medical bed can be directly stopped by using the safety logic program without passing through the central control server.
(2) Blocking device
The stopper is a device for shielding neutron beam, is arranged at the beam outlet of the neutron beam and mainly has the function of cutting off the neutron beam so as to protect a patient when the BNCT treatment is abnormal. In practice, the blocker has the ability to reach the blocking position and block the beam within 7 seconds after receiving the block command. When the treatment is not carried out, the blocker is also in a shielding position and can shield the radiation generated by the activated rotating target, so that the radiation level of the treatment room is reduced.
The main part moving sliding table of the stopper adopts a large-width aluminum alloy coated lead block shielding beam assembly, so that the requirements on structure and performance are met, and the use of easily activated element materials (such as elements manganese, zinc and the like) is reduced to the maximum extent. The driving mode of the stopper adopts a ball screw slide rail linear feeding mechanism which has the functions of stroke control and safety interlocking.
As shown in fig. 1, the blocker is connected to the central control server through a first control box. The blocking command (a device control command) received by the blocker can be generated by the central control server and then sent to the first control box, and then sent to the blocker by the first control box. The first control box is in analog signal communication with the stopper; furthermore, the first control box is connected with an enable button of the stopper.
The first control box is specifically used for responding to a device control instruction which is sent by the central control server and aims at the blocker when the enable button is in a pressed state; and when the enabling button is not in the pressed state, not responding to a device control instruction which is sent by the central control server and aims at the blocker, and returning an error code to the central control server.
The enabling button also has an emergency stop function, and after the enabling button is reset, the control box can forcibly move the stopper to the shielding position so as to achieve the purpose of protecting a patient.
(3) Shield door
The shielding door is a lead door used for shielding the space between the entrance of the treatment room and the outside, and adopts a sliding rail type drive powered by a motor. As shown in fig. 1, the screen door and the central control server are connected in communication through a second controller. The second control box is in analog signal communication with the shielding door.
The second control box is connected with an enabling button of the shielding door. The second control box is specifically used for responding to a device control instruction which is sent by the central control server and aims at the shielded door when an enabling button of the shielded door is in a pressed state; and when the enabling button is not in the pressed state, not responding to a device control instruction which is sent by the central control server and aims at the shielded door, and returning an error code to the central control server.
The shield door can be provided with a physical button which can be controlled by a doctor or a physicist, and when necessary, the doctor or the physicist can enter the environment of the patient for BNCT treatment to assist the patient to adjust.
(4) Neutron detector
The neutron detectors are used to determine the dose received by the patient during treatment, while some of the detectors are located elsewhere in the room for collecting ambient dose in the room and returning it to the central control server. The third control box is in analog signal communication with the neutron detector.
The central control server is specifically configured to write a dose required by the current treatment of the patient into the third control box according to an equipment control request for the neutron detector; the central control server is further configured to receive treatment completion information returned by the third control box, and the treatment completion information is sent to the central control server by the third control box when the count of the neutron detector reaches the dose required by treatment.
In practical application, the central control server may send a feedback signal to the third control box after receiving the treatment completion information returned by the third control box. For example, the feedback signal is used to indicate that the neutron detector stops detecting.
(4) Accelerator control system
The accelerator control system is not a single hardware device but a set of systems including independent control modules. The accelerator control system comprises hardware equipment such as an ion source, a low-energy beam transmission line LEBT, a radio frequency quadrupole accelerator RFQ, a medium-energy beam transmission line MEBT, a target station and the like, and the system is mainly used for generating and transmitting neutron beams required by treatment. In actual work, the central control server of the control system in the application does not directly control the operation of the set of equipment, but indirectly controls the operation of the set of equipment by interacting with the control module of the accelerator control system.
In the BNCT device therapy, the central control server is specifically configured to establish a dual-wavelength connection with a control module corresponding to the accelerator control system in a therapy preparation stage, generate a device manipulation instruction in response to a received device manipulation request for the accelerator control system after starting therapy, and send the device manipulation instruction to the control module corresponding to the accelerator control system to apply for a beam or stop a beam.
Optionally, the BNCT apparatus further comprises an image guidance system, and the image guidance system is communicatively connected to the central control server through a TCP/IP-socket protocol. The image guidance system may specifically be an indoor global positioning system (indoor GPS, iGPS). When the BNCT equipment is used for treating, the central control server is used for establishing a duplex long connection with the image guidance system and controlling the medical bed to move to a treatment position under the guidance of the image guidance system. Through the guidance of the image guidance system, the central control server can control the position of the medical bed more accurately, so that a better treatment effect is realized.
The image guidance system comprises an image acquisition device for acquiring position information of a patient.
The image guidance system is specifically used for obtaining the position deviation of the patient reaching the treatment position according to the position information and sending the position deviation to the central control server;
the central control server is specifically used for controlling the medical bed to move to a treatment position according to the position deviation.
The image guidance system further comprises an exposure controller;
the image acquisition device is configured to allow activation of a radiation exposure function of the image acquisition device on the premise that the exposure controller is pressed.
In an alternative implementation, the enable buttons and the motion buttons of the plurality of subsystems are integrated on a control panel; the control panel is in communication connection with the central control server. Fig. 2A is a schematic view of a communication connection between a control system of another BNCT apparatus and a subsystem of the BNCT apparatus according to the embodiment of the present application. Fig. 2A additionally shows a communication connection relationship between the central control server and the image guidance system and the control panel.
The control panel is configured to require a key to be inserted and the key to be turned on to power up prior to use. This ensures the reliability and safety of the control system in controlling the movement of the subsystems of the BNCT apparatus.
Fig. 2B illustrates a control panel. As shown in fig. 2B, the control panel includes an enable button, a move button, an out-of-beam button, a pause and restart button, and an emergency stop button. A key switch is also included, corresponding to the above-indicated position of insertion of the key. In addition, the control panel can also comprise indicator lamps for representing the four states of presetting, preparation, beam exiting and emergency, and the indicator lamps are lightened to represent that the control system controls the BNCT equipment to be in the corresponding state. The indicator light can more definitely and accurately reflect the working state or working stage of the BNCT equipment, and is convenient for users to use.
The blocker, the medical bed, and the barrier door are each configured to allow an operation to be performed after both an enable button and a motion button on the control panel are pressed.
The accelerator control system is configured to turn on beam current after both an enable button and a beam-out button on the control panel are pressed. The beam current starting method comprises the steps that an enabling button and a beam current discharging button need to be pressed before a central control server applies for starting beam current to an accelerator control system, the beam current can be started only after the enabling button and the beam current discharging button are both pressed, the beam current discharging button is special and is a self-reset button, the beam current starting button needs to be pressed all the time to be effective when the beam current starting button is used, and meanwhile the beam current stopping button is released under the condition that the beam current is started, so that the safety risk caused by misoperation is avoided.
The pause and restart button is configured to be pressed to stop all actions controlled by the control system or to resume all actions controlled by the control system.
The scram button is configured to be pressed to stop all actions controlled by the control system and to force a restart of the control system.
Fig. 2C shows a structure of a BNCT apparatus, which includes: the system comprises an image guide system, a shielding door, an accelerator control system, a stopper, a medical bed and a neutron detector.
As mentioned above, the control system of the BNCT apparatus includes a central control server for coordinating the operation of the subsystems of the BNCT apparatus. Fig. 3 shows the structure of a control system of another BNCT apparatus. As shown in fig. 3, the control system of the BNCT apparatus includes a central control server, and further includes: a database server, and a client running in a client device. The database server is in communication connection with the central control server through a TCP/IP protocol. The database server stores data used for indexing and storage paths of files. The SQLAlchemy method is used during database operation, the database adopts a lightweight SQLite database, only a small amount of data for indexing, such as patient information (known by patients and allowed to perform the storage behaviors), and the like, and a storage path of a large file (such as a PET file) are stored in the database, and the search speed is improved conveniently.
Optionally, the operation interface of the control system is written based on a web architecture. FIG. 4 is a schematic diagram of a client-side operation interface based on a web architecture. As can be seen from the operation interface shown in fig. 4, the user can select the mode and also see the status of the subsystems, such as the blocker, the screen door, the hospital bed, in the login interface. It is also possible to know the data detected by the neutron detector.
The client is in communication connection with the central control server through two protocols of TCP/IP-HTTPs and TCP/IP-socket modes;
if the client initiates a request for a database, the central control server communicates with the client through a TCP/IP-HTTPs protocol;
if the client initiates an equipment control request for the BNCT equipment, the central control server communicates with the client through a TCP/IP-socket protocol; the central control server is further used for locking the link of the client side until the client side actively releases the link while establishing socket duplex connection with the client side. And locking is carried out until the client actively releases the link, so that other clients can be prevented from accessing and generating conflicting instructions, and the working stability and reliability of the BNCT equipment are ensured.
In practical application, the medical bed, the stopper, the shielding door and the accelerator control system can be provided with a safety interlocking device. The safety interlocking device is used for controlling the medical bed, the stopper, the shielding door and the accelerator control system to stop working collectively. The safety interlocking device can be controlled by a central control server. Thereby ensuring the controllability of the operation of the BNCT device and the safety during the treatment.
In the embodiment of the application, the modular control design of the control system of the BNCT equipment on each subsystem of the BNCT equipment ensures that the system does not influence the control on other subsystems which are not failed under the condition that one subsystem fails. And the normal control is ensured. In addition, the method is established on a B/S framework, is better than the traditional C/S framework in the aspect of client compatibility, can be used on all current platforms with web clients, and is more convenient.
The above description is only one specific embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (16)

1. The control system of the boron neutron capture treatment equipment is characterized by being constructed based on a B/S (browser/Server) architecture and comprising a central control server; the central control server is in communication connection with control modules corresponding to a plurality of subsystems of the boron neutron capture therapy BNCT equipment respectively; the plurality of subsystems includes: the system comprises a medical bed, a stopper, a shielding door, a neutron detector and an accelerator control system;
the central control server is used for responding to a received equipment control request to generate an equipment control instruction, and sending the equipment control instruction to a target control module corresponding to the equipment control request, so that the target control module controls a corresponding subsystem to execute an operation corresponding to the equipment control request;
the control module corresponding to the medical bed is a medical bed control cabinet; the central control server is in communication connection with the medical bed control cabinet through a TCP/IP-HTTPs protocol; the medical bed control cabinet is communicated with the medical bed through analog signals;
the central control server is specifically configured to obtain coordinate information according to an equipment control request for the medical bed, where the coordinate information is used to control movement of the medical bed; and sending the coordinate information to the medical bed control cabinet, so that the medical bed control cabinet performs coordinate conversion according to the coordinate information to obtain motion information of each axis of the medical bed, and sending the motion information to the medical bed through an analog signal.
2. The control system of claim 1, wherein a sensor is disposed on the hospital bed, and the sensor is configured to transmit the collected data to the hospital bed control cabinet;
the central control server is also used for receiving data obtained by converting the medical bed control cabinet according to the data sent by the sensor.
3. The control system according to claim 1, wherein the control module corresponding to the blocker is a first control box, and the first control box is in communication connection with the central control server through a TCP/IP-OPCUA protocol; the first control box is connected with an enabling button of the stopper; the first control box is in analog signal communication with the stopper;
the first control box is specifically used for responding to a device control instruction which is sent by the central control server and aims at the blocker when the enable button and the motion button are in a pressed state; and when the enabling button is not in the pressed state, not responding to a device control instruction which is sent by the central control server and aims at the blocker, and returning an error code to the central control server.
4. The control system of claim 1, wherein the control module corresponding to the screen door is a second control box, and the second control box is in communication connection with the central control server through a TCP/IP-OPCUA protocol; the second control box is connected with an enabling button of the shielding door; the second control box is communicated with the shielding door through analog signals;
the second control box is specifically used for responding to a device control instruction which is sent by the central control server and aims at the shield door when the enabling button and the motion button are in a pressed state; and when the enabling button is not in the pressed state, not responding to a device control instruction which is sent by the central control server and aims at the shielded door, and returning an error code to the central control server.
5. The control system of claim 1, wherein the control module corresponding to the neutron detector is a third control box, and the third control box is in communication connection with the central control server through a TCP/IP-OPCUA protocol; the third control box is in analog signal communication with the neutron detector;
the central control server is specifically configured to write a required treatment dose to the third control box according to a device control request for the neutron detector;
the central control server is further configured to receive treatment completion information returned by the third control box, and the treatment completion information is sent to the central control server by the third control box when the count of the neutron detector reaches the dose required by treatment.
6. The control system of claim 1, wherein the control module corresponding to the accelerator control system is subordinate to the accelerator control system; the central control server is in communication connection with a control module corresponding to the accelerator control system by adopting a TCP/IP-socket protocol;
in the BNCT device therapy, the central control server is specifically configured to establish a dual-wavelength connection with a control module corresponding to the accelerator control system in a therapy preparation phase, generate a device control instruction in response to a received device control request for the accelerator control system after starting the therapy, and send the device control instruction to the control module corresponding to the accelerator control system to apply for a beam or stop the beam.
7. The control system of claim 1, further comprising an image guidance system in the plurality of subsystems, the image guidance system being communicatively connected to the central control server via a TCP/IP-socket protocol;
when the BNCT equipment is used for treating, the central control server is used for establishing a duplex long connection with the image guidance system and controlling the medical bed to move to a treatment position under the guidance of the image guidance system.
8. The control system of claim 7, wherein the image guidance system includes an image acquisition device for acquiring positional information of a patient;
the image guidance system is specifically used for obtaining the position deviation of the patient reaching the treatment position according to the position information and sending the position deviation to the central control server;
the central control server is specifically used for controlling the medical bed to move to a treatment position according to the position deviation.
9. The control system of claim 8, wherein the image guidance system further comprises an exposure controller;
the image acquisition device is configured to allow activation of a radioactive irradiation function of the image acquisition device on the premise that the exposure controller is pressed.
10. The control system of any of claims 1-6, wherein the enable buttons and motion buttons of the plurality of subsystems are integrated on a control panel; the control panel is in communication connection with the central control server;
the control panel is configured to require a key to be inserted and the key to be turned on to power up prior to use.
11. The control system of claim 10, wherein the blocker, the medical bed, and the barrier door are each configured to allow an operation to be performed after both an enable button and a motion button on the control panel are pressed.
12. The control system of claim 10, wherein the control panel further comprises an out-of-bundle button; the accelerator control system is configured to turn on the beam current after both an enable button and a beam-out button on the control panel are pressed.
13. The control system of claim 10, wherein the control panel further comprises a pause and restart button;
the pause and restart button is configured to be pressed to stop all actions controlled by the control system or to resume all actions controlled by the control system.
14. The control system of claim 10, wherein the control panel further comprises a scram button;
the scram button is configured to be pressed to stop all actions controlled by the control system and to force a restart of the control system.
15. The control system of claim 1, further comprising: the database server is in communication connection with the central control server through a TCP/IP protocol;
the database server stores data used for indexing and storage paths of files.
16. The control system of claim 1, wherein the control system's operating interface is written based on a web architecture; the control system further comprises: a client operating in a client device; the client is in communication connection with the central control server through two protocols of TCP/IP-HTTPs and TCP/IP-socket modes;
if the client initiates a request for a database, the central control server communicates with the client through a TCP/IP-HTTPs protocol;
if the client initiates an equipment control request for the BNCT equipment, the central control server communicates with the client through a TCP/IP-socket protocol; and the central control server is also used for locking the link of the client side until the client side actively releases the link while establishing socket duplex-workmanship connection with the client side.
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