CN113521563A - Safety monitoring method and device for radiotherapy room and radiotherapy equipment - Google Patents
Safety monitoring method and device for radiotherapy room and radiotherapy equipment Download PDFInfo
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Abstract
The invention discloses a safety monitoring method and a device for a radiotherapy room and radiotherapy equipment, wherein the method comprises the following steps: acquiring the comprehensive accumulated personnel number M of the treatment room at the current moment through an inlet monitoring device arranged at an inlet of a radiation treatment room and an outlet monitoring device arranged at an outlet of the radiation treatment room; acquiring the number N of personnel in the radiotherapy room at the current moment through an inlet monitoring device arranged at an inlet of the radiotherapy room, an outlet monitoring device arranged at an outlet of the radiotherapy room and an internal monitoring device arranged in the radiotherapy room; and obtaining N and M, and comprehensively judging whether a patient needs to be treated in the radiotherapy room. The invention can effectively, intelligently and automatically monitor, prevent the occurrence of the wrong irradiation condition and improve the safety performance.
Description
Technical Field
The invention belongs to the technical field of accelerator radiotherapy, and particularly relates to a safety monitoring method and device for a radiotherapy room and radiotherapy equipment.
Background
The radiation treatment room is used for equipment installation, debugging and maintenance or the patient is inevitably subjected to beam-emitting operation of the accelerator in the treatment process, and then the human body is greatly damaged when the accelerator is in close contact with rays, so that safety detection is carried out in the treatment room before the beam-emitting irradiation of the accelerator, no personnel (except the patient) in the room is ensured, and the occurrence of the mistaken irradiation condition is avoided, which becomes an important measure for ensuring the safety of radiation treatment. However, the existing safety monitoring method is old, and the examination is manually carried out, so that the missed examination and the wrong examination are easy to occur, and potential risks exist.
Disclosure of Invention
In order to solve the technical problems, the invention provides a safety monitoring method and device for a radiotherapy room and radiotherapy equipment.
In order to achieve the purpose, the technical scheme of the invention is as follows:
in one aspect, the invention discloses a safety monitoring method for a radiotherapy room, which comprises the following steps:
acquiring the comprehensive accumulated personnel number M of the treatment room at the current moment through an inlet monitoring device arranged at an inlet of a radiation treatment room and an outlet monitoring device arranged at an outlet of the radiation treatment room;
acquiring the number N of personnel in the radiotherapy room at the current moment through an inlet monitoring device arranged at an inlet of the radiotherapy room, an outlet monitoring device arranged at an outlet of the radiotherapy room and an internal monitoring device arranged in the radiotherapy room;
acquiring the number N, M of the staff in the treatment room at the current moment, and judging whether a patient needs to be treated in the radiation treatment room;
if a patient needs treatment, the accelerator is allowed to emit beams when N is 1 and M is 1, otherwise, the accelerator is prohibited to emit beams;
if no patient needs treatment, the accelerator is allowed to beam when N is 0 and M is 0, otherwise, the beam is forbidden.
On the basis of the technical scheme, the following improvements can be made:
as a preferable scheme, the method obtains the comprehensive accumulated number M of the treatment room staff at the current time through an entrance monitoring device arranged at an entrance of the radiation treatment room and an exit monitoring device arranged at an exit of the radiation treatment room, and specifically comprises the following steps:
a.1: initializing system parameters, and accumulating the number M1 of personnel entering a radiation treatment room to be 0 and the number M2 of personnel exiting the radiation treatment room to be 0;
a.2: the entrance monitoring device collects images at the entrance of the radiotherapy room;
a.3: detecting whether the image obtained in the step a.2 contains human body information by using a convolutional neural network;
if the human body information is detected, performing multi-frame continuous tracking on the detected human body;
otherwise, not acting;
a.4: judging whether the person enters a radiotherapy room or not according to the pixel position of the human body in the image;
if so, M1 is M1+ 1;
otherwise, not acting;
a.5: the exit monitoring device collects images at the exit of the radiotherapy room;
a.6: detecting whether the image obtained in the step a.5 contains human body information by using a convolutional neural network;
if the human body information is detected, performing multi-frame continuous tracking on the detected human body;
otherwise, not acting;
a.7: judging whether the personnel leaves the radiotherapy room or not according to the pixel position of the human body in the image;
if the user leaves, M2 is M2+ 1;
otherwise, not acting;
a.8: acquiring the comprehensive accumulated personnel number M of the radiotherapy room at the current moment, wherein: m is M1-M2.
Preferably, the number of the inlet monitoring device, the outlet monitoring device and the internal monitoring device is one or more.
As a preferred scheme, the number N of the personnel in the radiotherapy room at the current moment is obtained by an entrance monitoring device arranged at an entrance of the radiotherapy room, an exit monitoring device arranged at an exit of the radiotherapy room and an internal monitoring device arranged in the radiotherapy room, and the method specifically comprises the following steps:
b.1: the inlet monitoring device, the outlet monitoring device and the internal monitoring device respectively acquire and acquire images of a radiotherapy room;
b.2: detecting whether each monitoring image obtained in the step b.1 contains human body information or not by using a convolutional neural network;
if the human body information exists, respectively counting the total number of human bodies in each monitoring image, namely N1i, N2j and N3k, wherein: n1i is the sum of the number of human bodies counted by the ith entrance monitoring device, i belongs to [1, a ], and a is the number of the entrance monitoring devices; n2j is the sum of the number of human bodies counted by the jth exit monitoring device, j belongs to [1, b ], and b is the number of the exit monitoring devices; n3k is the sum of the number of human bodies counted by the kth internal monitoring device, k belongs to [1, c ], and c is the number of the internal monitoring devices;
otherwise, not acting;
b.3: filtering the repeated statistical personnel number N0 in the monitoring image through the image overlapping area;
b.4: acquiring the number N of personnel in the radiotherapy room at the current moment, wherein:
in another aspect, the present invention discloses a safety monitoring device for a radiotherapy room, comprising:
the first treatment room personnel number acquisition module is used for acquiring the comprehensive accumulated treatment room personnel number M at the current moment through an inlet monitoring device arranged at an inlet of a radiation treatment room and an outlet monitoring device arranged at an outlet of the radiation treatment room;
the second treatment room personnel number acquisition module is used for acquiring the personnel number N of the radiation treatment room at the current moment through an inlet monitoring device arranged at an inlet of the radiation treatment room, an outlet monitoring device arranged at an outlet of the radiation treatment room and an internal monitoring device arranged in the radiation treatment room;
the accelerator beam-out control module is used for acquiring N, M the number of staff in the treatment room at the current moment and judging whether a patient needs to be treated in the radiation treatment room;
if a patient needs treatment, the accelerator is allowed to emit beams when N is 1 and M is 1, otherwise, the accelerator is prohibited to emit beams;
if no patient needs treatment, the accelerator is allowed to beam when N is 0 and M is 0, otherwise, the beam is forbidden.
Preferably, the first treatment room personnel number obtaining module obtains the M through the following steps;
a.1: initializing system parameters, and accumulating the number M1 of personnel entering a radiation treatment room to be 0 and the number M2 of personnel exiting the radiation treatment room to be 0;
a.2: the entrance monitoring device collects images at the entrance of the radiotherapy room;
a.3: detecting whether the image obtained in the step a.2 contains human body information by using a convolutional neural network;
if the human body information is detected, performing multi-frame continuous tracking on the detected human body;
otherwise, not acting;
a.4: judging whether the person enters a radiotherapy room or not according to the pixel position of the human body in the image;
if so, M1 is M1+ 1;
otherwise, not acting;
a.5: the exit monitoring device collects images at the exit of the radiotherapy room;
a.6: detecting whether the image obtained in the step a.5 contains human body information by using a convolutional neural network;
if the human body information is detected, performing multi-frame continuous tracking on the detected human body;
otherwise, not acting;
a.7: judging whether the personnel leaves the radiotherapy room or not according to the pixel position of the human body in the image;
if the user leaves, M2 is M2+ 1;
otherwise, not acting;
a.8: acquiring the comprehensive accumulated personnel number M of the radiotherapy room at the current moment, wherein: m is M1-M2.
Preferably, the second treatment room personnel number obtaining module obtains N by:
b.1: the inlet monitoring device, the outlet monitoring device and the internal monitoring device respectively acquire and acquire images of a radiotherapy room;
b.2: detecting whether each monitoring image obtained in the step b.1 contains human body information or not by using a convolutional neural network;
if the human body information exists, respectively counting the total number of human bodies in each monitoring image, namely N1i, N2j and N3k, wherein: n1i is the sum of the number of human bodies counted by the ith entrance monitoring device, i belongs to [1, a ], and a is the number of the entrance monitoring devices; n2j is the sum of the number of human bodies counted by the jth exit monitoring device, j belongs to [1, b ], and b is the number of the exit monitoring devices; n3k is the sum of the number of human bodies counted by the kth internal monitoring device, k belongs to [1, c ], and c is the number of the internal monitoring devices;
otherwise, not acting;
b.3: filtering the repeated statistical personnel number N0 in the monitoring image through the image overlapping area;
b.4: acquiring the number N of personnel in the radiotherapy room at the current moment, wherein:
preferably, the number of the inlet monitoring device, the outlet monitoring device and the internal monitoring device is one or more.
On the other hand, the invention also discloses radiotherapy equipment which is monitored by using any one of the radiotherapy room safety monitoring methods; or, include any one of the radiation therapy room safety monitoring devices described above.
The invention discloses a safety monitoring method and device for a radiotherapy room and radiotherapy equipment. The invention can effectively, intelligently and automatically monitor, prevent the occurrence of the wrong irradiation condition and improve the safety performance.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a flowchart of a safety monitoring method for a radiation treatment room according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a radiation treatment room provided with an inlet monitoring device, an outlet monitoring device and an internal monitoring device according to an embodiment of the present invention.
Fig. 3 is a flowchart for acquiring the total accumulated number of staff in the treatment room at the current time according to the embodiment of the present invention.
Fig. 4 is a flowchart of the number of people N in the radiation treatment room at the present time according to the embodiment of the present invention.
Wherein: 101-radiotherapy room entrance, 102-radiotherapy room exit, 1-entrance monitoring device, 2-exit monitoring device, 3-interior monitoring device, 4-accelerator.
Detailed Description
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, 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 invention.
The use of the ordinal terms "first," "second," "third," etc., to describe a common object merely indicate that different instances of like objects are being referred to, and are not intended to imply that the objects so described must be in a given sequence, either temporally, spatially, in ranking, or in any other manner.
Also, the expression "comprising" an element is an expression of "open" which merely means that there is a corresponding component, and should not be interpreted as excluding additional components.
In order to achieve the object of the present invention, in some embodiments of a method and an apparatus for monitoring safety of a radiotherapy room and a radiotherapy device, as shown in fig. 1, a method for monitoring safety of a radiotherapy room comprises the following steps:
acquiring the comprehensive accumulated treatment room personnel number M at the current moment through an inlet monitoring device 1 arranged at an inlet 101 of a radiation treatment room and an outlet monitoring device 2 arranged at an outlet 102 of the radiation treatment room;
acquiring the number N of personnel in the radiotherapy room at the current moment through an inlet monitoring device 1 arranged at an inlet 101 of the radiotherapy room, an outlet monitoring device 2 arranged at an outlet 102 of the radiotherapy room and an internal monitoring device 3 arranged in the radiotherapy room;
acquiring the number N, M of the staff in the treatment room at the current moment, and judging whether a patient needs to be treated in the radiation treatment room;
if a patient needs treatment, the accelerator 4 is allowed to emit beams when N is 1 and M is 1, otherwise, the beams are prohibited;
if no patient needs treatment, the accelerator 4 is allowed to beam when N is 0 and M is 0, otherwise the beam is prohibited.
In some embodiments, the number of the inlet monitoring devices 1, the outlet monitoring devices 2 and the internal monitoring devices 3 is one or more.
In the following, a specific embodiment is described, as shown in fig. 2, where one inlet monitoring device 1 and one outlet monitoring device 2 are provided, and three internal monitoring devices 3 are provided.
In order to further optimize the implementation effect of the present invention, in other embodiments, the remaining features are the same, except that the comprehensive cumulative treatment room staff number M at the current time is obtained by the entrance monitoring device 1 disposed at the entrance 101 of the radiation treatment room and the exit monitoring device 2 disposed at the exit 102 of the radiation treatment room, as shown in fig. 3, specifically comprising the following steps:
a.1: initializing system parameters, and accumulating the number M1 of personnel entering a radiation treatment room to be 0 and the number M2 of personnel exiting the radiation treatment room to be 0;
a.2: the entrance monitoring device 1 collects images of the entrance 101 of the radiotherapy room;
a.3: detecting whether the image obtained in the step a.2 contains human body information by using a convolutional neural network;
if the human body information is detected, performing multi-frame continuous tracking on the detected human body;
otherwise, not acting;
a.4: judging whether the person enters a radiotherapy room or not according to the pixel position of the human body in the image;
if so, M1 is M1+ 1;
otherwise, not acting;
a.5: the exit monitoring device 2 acquires images of the exit 102 of the radiotherapy room;
a.6: detecting whether the image obtained in the step a.5 contains human body information by using a convolutional neural network;
if the human body information is detected, performing multi-frame continuous tracking on the detected human body;
otherwise, not acting;
a.7: judging whether the personnel leaves the radiotherapy room or not according to the pixel position of the human body in the image;
if the user leaves, M2 is M2+ 1;
otherwise, not acting;
a.8: acquiring the comprehensive accumulated personnel number M of the radiotherapy room at the current moment, wherein: m is M1-M2.
Further, the number N of the personnel in the radiotherapy room at the current moment is obtained by the entrance monitoring device 1 arranged at the entrance 101 of the radiotherapy room, the exit monitoring device 2 arranged at the exit 102 of the radiotherapy room, and the internal monitoring device 3 arranged in the radiotherapy room, as shown in fig. 4, the method specifically includes the following steps:
b.1: the inlet monitoring device 1, the outlet monitoring device 2 and the internal monitoring device 3 respectively acquire and acquire images of a radiotherapy room;
b.2: detecting whether each monitoring image obtained in the step b.1 contains human body information or not by using a convolutional neural network;
if the human body information exists, respectively counting the total number of human bodies in each monitored image, namely N11, N21, N31, N32 and N33, wherein: n11 is the sum of the number of human bodies counted by the entrance monitoring apparatus 1; n21 is the sum of the number of human bodies counted by the exit monitoring apparatus 2; n31 is the total of the number of human bodies counted by the 1 st internal monitoring device 3, N32 is the total of the number of human bodies counted by the 2 nd internal monitoring device 3, and N33 is the total of the number of human bodies counted by the 3 rd internal monitoring device 3;
otherwise, not acting;
b.3: filtering the repeated statistical personnel number N0 in the monitoring image through the image overlapping area;
b.4: acquiring the number N of personnel in the radiotherapy room at the current moment, wherein: N-N11 + N21+ N31+ N32+ N33-N0.
Two sets of monitoring devices are erected at the positions of the inlet and the outlet, the number of people entering and exiting the treatment room is counted, and the number of the remaining people in the treatment room at the current moment is obtained in an accumulated mode. A plurality of sets of monitoring cameras are used for monitoring and acquiring image data of the treatment room, and the number of people in the treatment room at the current moment is detected and acquired in real time in a direct mode. Can acquire the indoor personnel's quantity of treatment at the present moment through two kinds of different modes, both combine together, and dual insurance guarantees ensure safety.
On the other hand, the embodiment of the invention discloses a safety monitoring device for a radiation therapy room, which comprises:
a first treatment room personnel number obtaining module, configured to obtain a current comprehensive accumulated treatment room personnel number M through an entrance monitoring device 1 disposed at an entrance 101 of a radiation treatment room and an exit monitoring device 2 disposed at an exit 102 of the radiation treatment room;
a second treatment room staff number obtaining module, configured to obtain the number N of staff in the radiation treatment room at the current time through the entrance monitoring device 1 disposed at the entrance 101 of the radiation treatment room, the exit monitoring device 2 disposed at the exit 102 of the radiation treatment room, and the internal monitoring device 3 disposed in the radiation treatment room;
the accelerator 4 beam-outgoing control module is used for acquiring N, M the number of staff in the treatment room at the current time and judging whether a patient needs to be treated in the radiotherapy room;
if a patient needs treatment, the accelerator 4 is allowed to emit beams when N is 1 and M is 1, otherwise, the beams are prohibited;
if no patient needs treatment, the accelerator 4 is allowed to beam when N is 0 and M is 0, otherwise the beam is prohibited.
Similarly, in the following, an embodiment is described, in which, as shown in fig. 2, there are one inlet monitoring device 1 and one outlet monitoring device 2, and three internal monitoring devices 3.
The first treatment room personnel number acquisition module acquires M through the following steps;
a.1: initializing system parameters, and accumulating the number M1 of personnel entering a radiation treatment room to be 0 and the number M2 of personnel exiting the radiation treatment room to be 0;
a.2: the entrance monitoring device 1 collects images of the entrance 101 of the radiotherapy room;
a.3: detecting whether the image obtained in the step a.2 contains human body information by using a convolutional neural network;
if the human body information is detected, performing multi-frame continuous tracking on the detected human body;
otherwise, not acting;
a.4: judging whether the person enters a radiotherapy room or not according to the pixel position of the human body in the image;
if so, M1 is M1+ 1;
otherwise, not acting;
a.5: the exit monitoring device 2 acquires images of the exit 102 of the radiotherapy room;
a.6: detecting whether the image obtained in the step a.5 contains human body information by using a convolutional neural network;
if the human body information is detected, performing multi-frame continuous tracking on the detected human body;
otherwise, not acting;
a.7: judging whether the personnel leaves the radiotherapy room or not according to the pixel position of the human body in the image;
if the user leaves, M2 is M2+ 1;
otherwise, not acting;
a.8: acquiring the comprehensive accumulated personnel number M of the radiotherapy room at the current moment, wherein: m is M1-M2.
The second treatment room personnel number acquisition module acquires N by the following steps:
b.1: the inlet monitoring device 1, the outlet monitoring device 2 and the internal monitoring device 3 respectively acquire and acquire images of a radiotherapy room;
b.2: detecting whether each monitoring image obtained in the step b.1 contains human body information or not by using a convolutional neural network;
if the human body information exists, respectively counting the total number of human bodies in each monitored image, namely N11, N21, N31, N32 and N33, wherein: n11 is the sum of the number of human bodies counted by the entrance monitoring apparatus 1; n21 is the sum of the number of human bodies counted by the exit monitoring apparatus 2; n31 is the total of the number of human bodies counted by the 1 st internal monitoring device 3, N32 is the total of the number of human bodies counted by the 2 nd internal monitoring device 3, and N33 is the total of the number of human bodies counted by the 3 rd internal monitoring device 3;
otherwise, not acting;
b.3: filtering the repeated statistical personnel number N0 in the monitoring image through the image overlapping area;
b.4: acquiring the number N of personnel in the radiotherapy room at the current moment, wherein: N-N11 + N21+ N31+ N32+ N33-N0.
The entrance monitoring device 1, the exit monitoring device 2, and the internal monitoring device 3 according to the present invention may be, but are not limited to, devices that can perform a photographing function, such as a monitoring camera.
On the other hand, the embodiment of the invention also discloses radiotherapy equipment, which is monitored by using the safety monitoring method of the radiotherapy room disclosed by any embodiment; or, include the radiation therapy room safety monitoring device disclosed in any of the above embodiments.
The invention discloses a safety monitoring method and device for a radiotherapy room and radiotherapy equipment, wherein indoor monitoring images are acquired in real time through a plurality of monitoring devices in the radiotherapy room, the number of indoor personnel at the current moment is detected by using an artificial intelligence algorithm based on convolution, the number of the personnel entering and exiting the room is counted, and an accelerator 4 is started to alarm in an interlocking manner when the existence of operation and debugging personnel in the room is detected or other irrelevant personnel (except patients during treatment) in the room is counted before an accelerator 4 emits beams. The invention can effectively, intelligently and automatically monitor, prevent the occurrence of the wrong irradiation condition and improve the safety performance.
It should be understood that the various techniques described herein may be implemented in connection with hardware or software or, alternatively, with a combination of both. Thus, the methods and apparatus of the present invention, or certain aspects or portions thereof, may take the form of program code (i.e., instructions) embodied in tangible media, such as floppy diskettes, CD-ROMs, hard drives, or any other machine-readable storage medium, wherein, when the program is loaded into and executed by a machine, such as a computer, the machine becomes an apparatus for practicing the invention.
The above embodiments are merely illustrative of the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the content of the present invention and implement the present invention, and not to limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the scope of the present invention.
Claims (9)
1. A safety monitoring method for a radiation treatment room is characterized by comprising the following steps:
acquiring the comprehensive accumulated personnel number M of the treatment room at the current moment through an inlet monitoring device arranged at an inlet of a radiation treatment room and an outlet monitoring device arranged at an outlet of the radiation treatment room;
acquiring the number N of personnel in the radiotherapy room at the current moment through an inlet monitoring device arranged at an inlet of the radiotherapy room, an outlet monitoring device arranged at an outlet of the radiotherapy room and an internal monitoring device arranged in the radiotherapy room;
acquiring the number N, M of the staff in the treatment room at the current moment, and judging whether a patient needs to be treated in the radiation treatment room;
if a patient needs treatment, the accelerator is allowed to emit beams when N is 1 and M is 1, otherwise, the accelerator is prohibited to emit beams;
if no patient needs treatment, the accelerator is allowed to beam when N is 0 and M is 0, otherwise, the beam is forbidden.
2. The method for monitoring the safety of the radiotherapy room according to claim 1, wherein the step of obtaining the comprehensive accumulated number of the staff in the treatment room at the current time by the entrance monitoring device arranged at the entrance of the radiotherapy room and the exit monitoring device arranged at the exit of the radiotherapy room comprises the following steps:
a.1: initializing system parameters, and accumulating the number M1 of personnel entering a radiation treatment room to be 0 and the number M2 of personnel exiting the radiation treatment room to be 0;
a.2: the entrance monitoring device collects images at the entrance of the radiotherapy room;
a.3: detecting whether the image obtained in the step a.2 contains human body information by using a convolutional neural network;
if the human body information is detected, performing multi-frame continuous tracking on the detected human body;
otherwise, not acting;
a.4: judging whether the person enters a radiotherapy room or not according to the pixel position of the human body in the image;
if so, M1 is M1+ 1;
otherwise, not acting;
a.5: the exit monitoring device collects images at the exit of the radiotherapy room;
a.6: detecting whether the image obtained in the step a.5 contains human body information by using a convolutional neural network;
if the human body information is detected, performing multi-frame continuous tracking on the detected human body;
otherwise, not acting;
a.7: judging whether the personnel leaves the radiotherapy room or not according to the pixel position of the human body in the image;
if the user leaves, M2 is M2+ 1;
otherwise, not acting;
a.8: acquiring the comprehensive accumulated personnel number M of the radiotherapy room at the current moment, wherein: m is M1-M2.
3. The radiation therapy room safety monitoring method as claimed in claim 1, wherein the number of said entrance monitoring device, exit monitoring device and internal monitoring device is one or more.
4. The method for monitoring the safety of the radiotherapy room according to claim 3, wherein the number N of the personnel in the radiotherapy room at the current time is obtained by an entrance monitoring device arranged at the entrance of the radiotherapy room, an exit monitoring device arranged at the exit of the radiotherapy room and an internal monitoring device arranged in the radiotherapy room, and the method comprises the following steps:
b.1: the inlet monitoring device, the outlet monitoring device and the internal monitoring device respectively acquire and acquire images of a radiotherapy room;
b.2: detecting whether each monitoring image obtained in the step b.1 contains human body information or not by using a convolutional neural network;
if the human body information exists, respectively counting the total number of human bodies in each monitoring image, namely N1i, N2j and N3k, wherein: n1i is the sum of the number of human bodies counted by the ith entrance monitoring device, i belongs to [1, a ], and a is the number of the entrance monitoring devices; n2j is the sum of the number of human bodies counted by the jth exit monitoring device, j belongs to [1, b ], and b is the number of the exit monitoring devices; n3k is the sum of the number of human bodies counted by the kth internal monitoring device, k belongs to [1, c ], and c is the number of the internal monitoring devices;
otherwise, not acting;
b.3: filtering the repeated statistical personnel number N0 in the monitoring image through the image overlapping area;
b.4: is obtained whenNumber of radiation treatment room personnel N at the previous moment, wherein:
5. a radiation treatment room safety monitoring device, comprising:
the first treatment room personnel number acquisition module is used for acquiring the comprehensive accumulated treatment room personnel number M at the current moment through an inlet monitoring device arranged at an inlet of a radiation treatment room and an outlet monitoring device arranged at an outlet of the radiation treatment room;
the second treatment room personnel number acquisition module is used for acquiring the personnel number N of the radiation treatment room at the current moment through an inlet monitoring device arranged at an inlet of the radiation treatment room, an outlet monitoring device arranged at an outlet of the radiation treatment room and an internal monitoring device arranged in the radiation treatment room;
the accelerator beam-out control module is used for acquiring N, M the number of staff in the treatment room at the current moment and judging whether a patient needs to be treated in the radiation treatment room;
if a patient needs treatment, the accelerator is allowed to emit beams when N is 1 and M is 1, otherwise, the accelerator is prohibited to emit beams;
if no patient needs treatment, the accelerator is allowed to beam when N is 0 and M is 0, otherwise, the beam is forbidden.
6. The radiation treatment room safety monitoring device of claim 5, wherein the first treatment room personnel number obtaining module obtains M by;
a.1: initializing system parameters, and accumulating the number M1 of personnel entering a radiation treatment room to be 0 and the number M2 of personnel exiting the radiation treatment room to be 0;
a.2: the entrance monitoring device collects images at the entrance of the radiotherapy room;
a.3: detecting whether the image obtained in the step a.2 contains human body information by using a convolutional neural network;
if the human body information is detected, performing multi-frame continuous tracking on the detected human body;
otherwise, not acting;
a.4: judging whether the person enters a radiotherapy room or not according to the pixel position of the human body in the image;
if so, M1 is M1+ 1;
otherwise, not acting;
a.5: the exit monitoring device collects images at the exit of the radiotherapy room;
a.6: detecting whether the image obtained in the step a.5 contains human body information by using a convolutional neural network;
if the human body information is detected, performing multi-frame continuous tracking on the detected human body;
otherwise, not acting;
a.7: judging whether the personnel leaves the radiotherapy room or not according to the pixel position of the human body in the image;
if the user leaves, M2 is M2+ 1;
otherwise, not acting;
a.8: acquiring the comprehensive accumulated personnel number M of the radiotherapy room at the current moment, wherein: m is M1-M2.
7. The radiation treatment room safety monitoring device of claim 5, wherein the second treatment room personnel number acquisition module acquires N by:
b.1: the inlet monitoring device, the outlet monitoring device and the internal monitoring device respectively acquire and acquire images of a radiotherapy room;
b.2: detecting whether each monitoring image obtained in the step b.1 contains human body information or not by using a convolutional neural network;
if the human body information exists, respectively counting the total number of human bodies in each monitoring image, namely N1i, N2j and N3k, wherein: n1i is the sum of the number of human bodies counted by the ith entrance monitoring device, i belongs to [1, a ], and a is the number of the entrance monitoring devices; n2j is the sum of the number of human bodies counted by the jth exit monitoring device, j belongs to [1, b ], and b is the number of the exit monitoring devices; n3k is the sum of the number of human bodies counted by the kth internal monitoring device, k belongs to [1, c ], and c is the number of the internal monitoring devices;
otherwise, not acting;
b.3: filtering the repeated statistical personnel number N0 in the monitoring image through the image overlapping area;
b.4: acquiring the number N of personnel in the radiotherapy room at the current moment, wherein:
8. the radiation therapy room safety monitoring device of claim 7, wherein the number of the inlet monitoring device, the outlet monitoring device and the internal monitoring device is one or more.
9. A radiotherapy apparatus characterized by being monitored by a radiotherapy room safety monitoring method according to any one of claims 1 to 4; or, comprising a radiation therapy room safety monitoring device according to any of claims 5-8.
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