Automatic instrument calibration method and device for ionizing radiation standard laboratory and medium

Abstract

The embodiment of the invention provides an automatic instrument calibration method and device for an ionizing radiation standard laboratory and a medium, and the method comprises the steps: recognizing the type of a target instrument, and determining corresponding calibration regulations and technical index requirements according to the type of the target instrument; the target instrument is installed at the instrument installation position of the calibration robot, and the type, the calibration regulation and the technical index requirements of the target instrument are set in the calibration robot; according to the type of the target instrument and the calibration procedure, a target calibration laboratory is determined, and the calibration robot is controlled to carry the target instrument into the target calibration laboratory; the target calibration laboratory is one of the plurality of calibration laboratories; according to calibration regulations and technical index requirements, the calibration robot is controlled to complete positioning of the target instrument, and measurement data of the target instrument is automatically read to complete calibration of the target instrument; and controlling the calibration robot to carry the target instrument to exit the target calibration laboratory.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of radiation field instrument calibration, in particular to an ionizing radiation standard laboratory instrument automatic calibration method, device and medium. BACKGROUND

[0002] In many fields such as radiation protection, medical radiotherapy, industrial flaw detection and scientific research, dosimeters are used to accurately measure radiation dose, and their measurement accuracy is crucial, and calibration is a key link to ensure accuracy. The existing dosimeter calibration work relies heavily on manual operation, which is tedious and inefficient. From the preparation stage of setting up the radiation source, installing and positioning the dosimeter, to frequently adjusting the angle of the dosimeter during the measurement process, recording measurement data under different conditions, calibration personnel are required to participate throughout the process, not only time-consuming, but also increasing the risk of personnel exposure to radiation for a long time. Manual operation is also affected by individual experience and operating habits, combined with the existence of multiple different types of dosimeters, corresponding calibration procedures differ, resulting in insufficient standardization of the calibration process, and the repeatability and reliability of the measurement results are difficult to guarantee.

[0003] In the process of implementing the present application, the applicant found that at least the following problems exist in the prior art:

[0004] The problems of low efficiency of manual operation, radiation exposure risk, low standardization and low calibration reliability. SUMMARY

[0005] The present application provides an ionizing radiation standard laboratory instrument automatic calibration method, device and medium to at least solve the problems of low efficiency of manual operation, radiation exposure risk, low standardization and low calibration reliability.

[0006] To achieve the above purpose, in a first aspect, the present application provides an ionizing radiation standard laboratory instrument automatic calibration method, comprising:

[0007] Identify the type of the target instrument, and determine the corresponding calibration procedure and technical index requirement according to the type of the target instrument;

[0008] Install the target instrument at the instrument installation position of the calibration robot, and set the type of the target instrument, the calibration procedure and the technical index requirement to the calibration robot;

[0009] According to the type of the target instrument and the calibration procedure, determine the target calibration laboratory, and control the calibration robot to carry the target instrument into the target calibration laboratory; the target calibration laboratory is one of a plurality of calibration laboratories;

[0010] According to the calibration procedure and the technical index requirement, the calibration robot is controlled to complete positioning of the target instrument, and to automatically read measurement data of the target instrument to complete calibration of the target instrument.

[0011] The calibration robot is controlled to carry the target instrument out of the target calibration laboratory.

[0012] Further, the type of the target instrument is identified, including:

[0013] A two-dimensional code pre-pasted on the target instrument is identified to determine the type of the target instrument; wherein the type of the target instrument includes a handheld inspection instrument, a personal dosimeter and / or an environmental dosimeter.

[0014] Further, the target instrument is installed at an instrument installation position of the calibration robot, including:

[0015] The target instrument is automatically moved from an instrument rack and fixed at the instrument installation position of the calibration robot by a mechanical hand, and the target instrument is powered on.

[0016] Further, the calibration robot is controlled to carry the target instrument into the target calibration laboratory, including:

[0017] When the calibration robot reaches the entrance of the target calibration laboratory, the shielding door of the target calibration laboratory is controlled to automatically open, and the shielding door is closed after the calibration robot enters the target calibration laboratory.

[0018] The calibration robot is navigated to a preset transfer position in the target calibration laboratory.

[0019] The transfer position is located within a capture range of a preset optical three-dimensional motion capture system in the target calibration laboratory.

[0020] Further, the measurement data of the target instrument is automatically read, including:

[0021] A video image of the target instrument is captured;

[0022] Measurement result data of the target instrument is extracted from the video image.

[0023] Further, the calibration robot is controlled to complete positioning of the target instrument, including:

[0024] A real-time position of the target instrument on the calibration robot is captured by an optical three-dimensional motion capture system in the target calibration laboratory.

[0025] According to the real-time position, the calibration point position set in the calibration procedure and the background measurement position, the calibration robot is controlled to move and position the target instrument at the calibration point position or the background measurement position.

[0026] Further, according to the calibration procedure and the technical index requirement, the calibration robot is controlled to complete positioning of the target instrument, automatically read measurement data of the target instrument and complete calibration of the target instrument, including:

[0027] The calibration robot is controlled by the preset optical three-dimensional motion capture system in the target calibration laboratory to position the target instrument at a background measurement position in the middle of the target calibration laboratory;

[0028] The target instrument is controlled to perform multiple background measurements on the target calibration laboratory, and measurement data of the multiple background measurements is recorded; the number of times of background measurements is set in the calibration procedure;

[0029] A shutter of a radiation source is opened, and the calibration robot is controlled to position the target instrument at a position on a central axis of a ray beam of the radiation source at a preset reference distance from the radiation source; the radiation source is preset in the target calibration laboratory, and the preset reference distance is determined by a design parameter of the radiation source;

[0030] The radiation source is controlled to sequentially output different preset radiation energies at preset energy response measurement intervals, and for each preset radiation energy of the radiation source, energy response measurement data corresponding to the preset radiation energy output by a dosimeter is read; the preset energy response measurement period and the preset radiation energy are recorded in the calibration procedure;

[0031] The calibration robot is controlled to move and position the target instrument at different preset calibration points on the central axis of the ray beam of the radiation source, and measurement data of the target instrument at each preset calibration point is recorded, and a calibration factor is determined according to the measurement data at all calibration points;

[0032] The calibration robot is controlled to move and position the target instrument at different preset calibration points on the central axis of the ray beam of the radiation source, and the calibration robot is controlled to control an included angle between the target instrument and the central axis of the ray beam of the radiation source at each preset calibration point position, and measurement data is collected at a plurality of preset included angles at each preset calibration point position; wherein the position of each preset calibration point and the corresponding preset included angle are pre-stored in the calibration procedure;

[0033] Based on the measurement data from multiple background measurements, the energy response measurement data corresponding to all preset radiation energies, the measurement data at all preset calibration points, and the measurement data collected at all preset included angles at all preset calibration point locations, and in conjunction with the aforementioned technical specifications, the calibration results are evaluated to determine whether they are qualified.

[0034] Once the calibration result is deemed satisfactory, the calibration is confirmed to be complete.

[0035] Secondly, embodiments of the present invention provide an automatic instrument calibration device for an ionizing radiation standard laboratory, comprising:

[0036] A type determination unit is used to identify the type of the target instrument and determine the corresponding calibration procedure and technical specification requirements based on the type of the target instrument.

[0037] An instrument mounting unit is used to install the target instrument at the instrument mounting position of the calibration robot, and to set the type of the target instrument, the calibration procedure, and the technical specifications into the calibration robot;

[0038] The first transfer unit is used to determine the target calibration laboratory according to the type of the target instrument and the calibration procedure, and to control the calibration robot to transport the target instrument into the target calibration laboratory; the target calibration laboratory is one of multiple calibration laboratories;

[0039] The calibration unit is used to control the calibration robot to locate the target instrument and automatically read the measurement data of the target instrument to complete the calibration of the target instrument according to the calibration procedure and the technical specifications.

[0040] The second transfer unit is used to control the calibration robot to carry the target instrument out of the target calibration laboratory.

[0041] Furthermore, the type determination unit is used to identify the QR code pre-attached to the target instrument to determine the type of the target instrument; wherein the type of the target instrument includes a handheld inspection device, a personal dosimeter, and / or an environmental dosimeter.

[0042] Furthermore, the type determination unit is used to automatically move the target instrument from the instrument rack and fix it at the instrument installation position of the calibration robot by means of a robotic arm, and to turn on the target instrument.

[0043] Furthermore, the first transfer unit is used to control the shielding door of the target calibration laboratory to open automatically when the calibration robot arrives at the entrance of the target calibration laboratory, and to close the shielding door after the calibration robot enters the target calibration laboratory; and to navigate the calibration robot to a preset transfer position in the target calibration laboratory; the transfer position is located within the capture range of a preset optical three-dimensional motion capture system in the target calibration laboratory.

[0044] Furthermore, the calibration unit is used to acquire video images of the target instrument and extract measurement result data of the target instrument from the video images.

[0045] Furthermore, the calibration unit is used to capture the real-time position of the target instrument on the calibration robot through the optical three-dimensional motion capture system in the target calibration laboratory; and control the calibration robot to move according to the real-time position, the calibration point position and the background measurement position set in the calibration procedure, so as to position the target instrument to the calibration point position or the background measurement position.

[0046] Furthermore, the calibration unit is used to control the calibration robot to position the target instrument to the background measurement position in the middle of the target calibration laboratory through a preset optical three-dimensional motion capture system in the target calibration laboratory;

[0047] The target instrument is controlled to perform multiple background measurements on the target calibration laboratory, and the measurement data of the multiple background measurements are recorded; wherein, the number of background measurements is set in the calibration procedure;

[0048] The shutter of the radiation source is opened, and the calibration robot is controlled to set the target instrument at a position on the central axis of the radiation beam of the radiation source at a preset reference distance from the radiation source; the radiation source is preset to be placed in the target calibration laboratory, and the preset reference distance is determined by the design parameters of the radiation source;

[0049] The radiation source is controlled to output different preset radiation energies sequentially according to a preset energy response measurement interval. For each preset radiation energy of the radiation source, the energy response measurement data corresponding to the preset radiation energy output by the dosimeter is read. The preset energy response measurement period and the preset radiation energy are recorded in the calibration procedure.

[0050] The calibration robot is controlled to move and the target instrument is set at different preset calibration points on the central axis of the radiation source beam. The measurement data of the target instrument at each preset calibration point is recorded, and the calibration factor is determined based on the measurement data at all calibration points.

[0051] The calibration robot is controlled to move and position the target instrument at different preset calibration points on the central axis of the radiation source's beam. At each preset calibration point, the calibration robot controls the angle between the target instrument and the central axis of the radiation source's beam. Measurement data is collected at multiple preset angles at each preset calibration point. The position of each preset calibration point and the corresponding preset angle are pre-stored in the calibration procedure.

[0052] Based on the measurement data from multiple background measurements, the energy response measurement data corresponding to all preset radiation energies, the measurement data at all preset calibration points, and the measurement data collected at all preset included angles at all preset calibration point locations, and in conjunction with the aforementioned technical specifications, the calibration results are evaluated to determine whether they are qualified.

[0053] Once the calibration result is deemed satisfactory, the calibration is confirmed to be complete.

[0054] Thirdly, embodiments of the present invention provide a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the method described in any of the preceding methods.

[0055] The above technical solution offers the following advantages: Each target instrument corresponds to a standardized and streamlined calibration procedure, which is input into the calibration robot for automatic execution. Once the calibration procedure is initiated, no manual intervention is required, avoiding inconsistencies in calibration procedures and results caused by different operators. The calibration process is also more traceable. Furthermore, it reduces labor costs and improves calibration efficiency and accuracy. Attached Figure Description

[0056] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0057] Figure 1 This is a flowchart of an automatic instrument calibration method in an ionizing radiation standard laboratory, one of the embodiments of the present invention;

[0058] Figure 2 This is a schematic diagram of an automatic instrument calibration device for an ionizing radiation standard laboratory, one of the embodiments of the present invention;

[0059] Figure 3 This is another flowchart of an automatic instrument calibration method for an ionizing radiation standard laboratory, which is one embodiment of the present invention. Detailed Implementation

[0060] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0061] Firstly, such as Figure 1 As shown, this embodiment of the invention provides an automatic instrument calibration method for an ionizing radiation standard laboratory, comprising:

[0062] Step S10: Identify the type of the target instrument and determine the corresponding calibration procedure and technical specification requirements based on the type of the target instrument;

[0063] Various identification technologies can be employed, such as RFID identification, image recognition, and barcode recognition. For example, image recognition technology can be used to capture images of the target instrument through a camera, and the image processing unit can preprocess the images and identify the instrument's image features to determine its type. RFID and barcode recognition pre-installed on the target instrument can also be used. Different types of target instruments require different calibration procedures and technical specifications; the calibration procedures and technical specifications are determined based on the instrument type. Calibration procedures include information such as calibration steps, calibration parameters, and calibration equipment; technical specifications include information such as measurement range, accuracy class, and error. The corresponding calibration procedures and technical specifications for each type of instrument can be pre-selected and established, for example, stored in a database.

[0064] Step S11: Install the target instrument at the instrument installation position of the calibration robot, and set the type of the target instrument, the calibration procedure, and the technical specifications into the calibration robot;

[0065] The calibration robot is used to install target instruments and perform instrument positioning and data reading operations according to calibration procedures and technical specifications. The calibration robot includes a horizontal movement component, a vertical lifting component mounted on the horizontal movement component, a rotation component, and a video acquisition component. The horizontal movement component transports the target instrument horizontally, the vertical lifting component adjusts the height of the target instrument, the rotation component adjusts the angle of the instrument around its vertical axis, and the video acquisition component captures images of the measurement results from the target instrument. The calibration robot can automatically and accurately determine the position and orientation of the instrument according to the calibration procedure, read the instrument's measurement data, and complete automatic calibration.

[0066] Step S12: Based on the type of the target instrument and the calibration procedure, determine the target calibration laboratory, and control the calibration robot to transport the target instrument into the target calibration laboratory; the target calibration laboratory is one of multiple calibration laboratories;

[0067] Select the appropriate target calibration laboratory from multiple calibration laboratories based on the instrument type and calibration procedure. The basic information of the calibration laboratory includes laboratory ID, laboratory name, laboratory location, supported instrument types, and / or the calibration equipment it is equipped with.

[0068] Step S13: According to the calibration procedure and the technical specifications, control the calibration robot to complete the positioning of the target instrument and automatically read the measurement data of the target instrument to complete the calibration of the target instrument;

[0069] The calibration procedure defines the calibration steps for each instrument. After entering the target calibration laboratory, the calibration is performed according to the definition of the calibration procedure to complete the calibration of the target instrument.

[0070] Step S14: Control the calibration robot to carry the target instrument out of the target calibration laboratory.

[0071] The embodiments of this invention have the following technical advantages: Each target instrument corresponds to a streamlined and standardized calibration procedure, which is input into the calibration robot for automatic execution. Once the calibration procedure is initiated, no manual intervention is required, avoiding problems such as inconsistent calibration procedures and inconsistent calibration results caused by different operators. The calibration process is more traceable. It reduces labor costs and improves calibration efficiency and accuracy.

[0072] Furthermore, the identification of the type of target instrument includes:

[0073] Identify the QR code pre-attached to the target instrument to determine the type of the target instrument; wherein, the type of the target instrument includes a handheld inspection device, a personal dosimeter, and / or an environmental dosimeter.

[0074] Further, installing the target instrument at the instrument mounting position on the calibration robot includes:

[0075] The target instrument is automatically moved from the instrument rack and fixed at the instrument installation position on the calibration robot by a robotic arm, and the target instrument is then powered on.

[0076] To achieve automated storage and management of target instruments, realize full automation of the calibration process, improve overall calibration efficiency, and avoid problems such as mistaking instruments when manually entering and leaving the warehouse and disorderly storage in the warehouse.

[0077] Furthermore, controlling the calibration robot to transport the target instrument into the target calibration laboratory includes:

[0078] When the calibration robot arrives at the entrance of the target calibration laboratory, the shielding door of the target calibration laboratory is automatically opened, and the shielding door is closed after the calibration robot enters the target calibration laboratory;

[0079] Navigate the calibration robot to a preset transit point within the target calibration laboratory;

[0080] The transfer point is located within the capture range of a preset optical three-dimensional motion capture system in the target calibration laboratory.

[0081] The navigation methods inside and outside the target calibration laboratory are different. Outside, low-precision navigation can be used, and the goal is to guide the robot to a transit position or nearby within the target calibration laboratory. Inside the target calibration laboratory, since it is necessary to accurately locate the position and attitude of the target instrument, a more accurate positioning system is required. For example, an optical 3D motion capture system can be deployed in the target calibration laboratory to achieve precise absolute position positioning.

[0082] Furthermore, the automatic reading of the measurement data of the target instrument includes:

[0083] Acquire video images of the target instrument;

[0084] The measurement result data of the target instrument is extracted from the video image.

[0085] During the calibration process, the target calibration laboratory is in a radiation environment, and personnel should not enter to observe the measurement data of the target instrument. Video acquisition components can be deployed on the calibration robot or in the target calibration laboratory to collect video images of the measurement results of the target instrument. The measurement result data of the target instrument can then be determined by analyzing the numbers or pointer positions in the video images.

[0086] Furthermore, controlling the calibration robot to complete the positioning of the target instrument includes:

[0087] The real-time position of the target instrument on the calibration robot is captured by an optical three-dimensional motion capture system within the target calibration laboratory.

[0088] Based on the real-time location, the calibration point location set in the calibration procedure, and the background measurement location, the calibration robot is controlled to move and position the target instrument at the calibration point location or the background measurement location.

[0089] The optical 3D motion capture system can directly acquire the real-time position of the target instrument and compare it with the calibration point position in the calibration procedure. Both the real-time position and the calibration point position are absolute positions in the optical 3D motion capture system, and the deviation between the two absolute positions can be directly compared to improve positioning accuracy.

[0090] Furthermore, according to the calibration procedure and the technical specifications, the calibration robot is controlled to locate the target instrument and automatically read the measurement data of the target instrument to complete the calibration of the target instrument, including:

[0091] The calibration robot is controlled by a preset optical three-dimensional motion capture system in the target calibration laboratory to position the target instrument at the background measurement position in the middle of the target calibration laboratory;

[0092] The target instrument is controlled to perform multiple background measurements on the target calibration laboratory, and the measurement data of the multiple background measurements are recorded; wherein, the number of background measurements is set in the calibration procedure;

[0093] The shutter of the radiation source is opened, and the calibration robot is controlled to set the target instrument at a position on the central axis of the radiation beam of the radiation source at a preset reference distance from the radiation source; the radiation source is preset to be placed in the target calibration laboratory, and the preset reference distance is determined by the design parameters of the radiation source;

[0094] The radiation source is controlled to output different preset radiation energies sequentially according to a preset energy response measurement interval. For each preset radiation energy of the radiation source, the energy response measurement data corresponding to the preset radiation energy output by the dosimeter is read. The preset energy response measurement period and the preset radiation energy are recorded in the calibration procedure.

[0095] The calibration robot is controlled to move and the target instrument is set at different preset calibration points on the central axis of the radiation source beam. The measurement data of the target instrument at each preset calibration point is recorded, and the calibration factor is determined based on the measurement data at all calibration points.

[0096] The calibration robot is controlled to move and position the target instrument at different preset calibration points on the central axis of the radiation source's beam. At each preset calibration point, the calibration robot controls the angle between the target instrument and the central axis of the radiation source's beam. Measurement data is collected at multiple preset angles at each preset calibration point. The position of each preset calibration point and the corresponding preset angle are pre-stored in the calibration procedure.

[0097] Based on the measurement data from multiple background measurements, the energy response measurement data corresponding to all preset radiation energies, the measurement data at all preset calibration points, and the measurement data collected at all preset included angles at all preset calibration point locations, and in conjunction with the aforementioned technical specifications, the calibration results are evaluated to determine whether they are qualified.

[0098] Once the calibration result is deemed satisfactory, the calibration is confirmed to be complete.

[0099] The calibration robot automatically completes the calibration operation according to the calibration procedure. It automatically collects measurement data, including but not limited to data from multiple background measurements, energy response measurements corresponding to all preset radiation energies, measurement data at all preset calibration points, and measurement data collected at all preset angles at all preset calibration point locations. The technical specifications pre-define acceptable ranges for the aforementioned measurement data collected by the calibration robot, or acceptable ranges for the calculated values ​​of the relevant measurement data. By comparing the collected measurement data or the calculated values ​​of the relevant measurement data with the corresponding acceptable ranges in the technical specifications, it can be determined whether the collected measurement data are all within the acceptable range, thus determining whether the calibration result is acceptable. If the collected measurement data are all within the acceptable range, the calibration is acceptable; otherwise, the calibration is unacceptable. In the case of unacceptable calibration, the calibration robot can be controlled to recalibrate or readjust the calibration procedure, and the adjusted calibration procedure can be downloaded to the calibration robot to control the calibration robot to recalibrate according to the new calibration procedure. During the calibration procedure update process, the calibration robot can be kept within the calibration laboratory and completed remotely, or it can be navigated outside the calibration laboratory. Preferably, the adjusted calibration procedure is remotely downloaded to the calibration robot.

[0100] Secondly, such as Figure 2 As shown, this embodiment of the invention provides an automatic instrument calibration device for an ionizing radiation standards laboratory, comprising:

[0101] The type determination unit 200 is used to identify the type of the target instrument and determine the corresponding calibration procedure and technical specification requirements based on the type of the target instrument.

[0102] The instrument installation unit 201 is used to install the target instrument at the instrument installation position of the calibration robot, and to set the type of the target instrument, the calibration procedure, and the technical specifications into the calibration robot;

[0103] The first transfer unit 202 is used to determine the target calibration laboratory according to the type of the target instrument and the calibration procedure, and control the calibration robot to transport the target instrument into the target calibration laboratory; the target calibration laboratory is one of multiple calibration laboratories;

[0104] The calibration unit 203 is used to control the calibration robot to locate the target instrument and automatically read the measurement data of the target instrument to complete the calibration of the target instrument according to the calibration procedure and the technical specifications.

[0105] The second transfer unit 204 is used to control the calibration robot to carry the target instrument out of the target calibration laboratory.

[0106] Furthermore, the type determination unit is used to identify the QR code pre-attached to the target instrument to determine the type of the target instrument; wherein the type of the target instrument includes a handheld inspection device, a personal dosimeter, and / or an environmental dosimeter.

[0107] Furthermore, the type determination unit is used to automatically move the target instrument from the instrument rack and fix it at the instrument installation position of the calibration robot by means of a robotic arm, and to turn on the target instrument.

[0108] Furthermore, the first transfer unit is used to control the shielding door of the target calibration laboratory to open automatically when the calibration robot arrives at the entrance of the target calibration laboratory, and to close the shielding door after the calibration robot enters the target calibration laboratory; and to navigate the calibration robot to a preset transfer position in the target calibration laboratory; the transfer position is located within the capture range of a preset optical three-dimensional motion capture system in the target calibration laboratory.

[0109] Furthermore, the calibration unit is used to acquire video images of the target instrument and extract measurement result data of the target instrument from the video images.

[0110] Furthermore, the calibration unit is used to capture the real-time position of the target instrument on the calibration robot through the optical three-dimensional motion capture system in the target calibration laboratory; and control the calibration robot to move according to the real-time position, the calibration point position and the background measurement position set in the calibration procedure, so as to position the target instrument to the calibration point position or the background measurement position.

[0111] Furthermore, the calibration unit is used to control the calibration robot to position the target instrument to the background measurement position in the middle of the target calibration laboratory through a preset optical three-dimensional motion capture system in the target calibration laboratory;

[0112] The target instrument is controlled to perform multiple background measurements on the target calibration laboratory, and the measurement data of the multiple background measurements are recorded; wherein, the number of background measurements is set in the calibration procedure;

[0113] The shutter of the radiation source is opened, and the calibration robot is controlled to set the target instrument at a position on the central axis of the radiation beam of the radiation source at a preset reference distance from the radiation source; the radiation source is preset to be placed in the target calibration laboratory, and the preset reference distance is determined by the design parameters of the radiation source;

[0114] The radiation source is controlled to output different preset radiation energies sequentially according to a preset energy response measurement interval. For each preset radiation energy of the radiation source, the energy response measurement data corresponding to the preset radiation energy output by the dosimeter is read. The preset energy response measurement period and the preset radiation energy are recorded in the calibration procedure.

[0115] The calibration robot is controlled to move and the target instrument is set at different preset calibration points on the central axis of the radiation source beam. The measurement data of the target instrument at each preset calibration point is recorded, and the calibration factor is determined based on the measurement data at all calibration points.

[0116] The calibration robot is controlled to move and position the target instrument at different preset calibration points on the central axis of the radiation source's beam. At each preset calibration point, the calibration robot controls the angle between the target instrument and the central axis of the radiation source's beam. Measurement data is collected at multiple preset angles at each preset calibration point. The position of each preset calibration point and the corresponding preset angle are pre-stored in the calibration procedure.

[0117] Based on the measurement data from multiple background measurements, the energy response measurement data corresponding to all preset radiation energies, the measurement data at all preset calibration points, and the measurement data collected at all preset included angles at all preset calibration point locations, and in conjunction with the aforementioned technical specifications, the calibration results are evaluated to determine whether they are qualified.

[0118] Once the calibration result is deemed satisfactory, the calibration is confirmed to be complete.

[0119] Thirdly, embodiments of the present invention provide a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the method described in any of the preceding methods.

[0120] For the embodiments of apparatus, systems and media, since they are basically similar to the method embodiments, the description is relatively simple, and relevant parts can be referred to in the description of the method embodiments.

[0121] The technical solutions of the present invention will be described in detail below with reference to specific application examples. For technical details not described in the implementation process, please refer to the relevant descriptions above.

[0122] like Figure 3The diagram shown is another flowchart of an automatic instrument calibration method in an ionizing radiation standard laboratory according to an embodiment of the present invention. In this method, the calibration instruments (target instruments) are classified and automatically identified after a QR code is manually affixed for the first time. After identification, the calibration procedure basis and technical indicator requirements are automatically determined according to the instrument type.

[0123] The calibration robot is fed with the required indicators (calibration procedures and technical specifications). The classified indicators are automatically input into the robot system. The robot determines which calibration laboratory and calibration point to enter based on the corresponding indicators and completes automatic positioning.

[0124] The target instrument is placed on the calibration robot and reliably powered on. After confirming that the instrument is placed correctly and reliably powered on, a special robotic arm is used to place and fix the instrument and perform the power-on operation.

[0125] The calibration robot navigates into the target calibration laboratory and enters the 3D video capture system. The correctness and accuracy of the navigation are confirmed through feedback from the control software and verification by the video capture system.

[0126] Five background measurements were performed, collecting measurement data from the target instrument and recording the background values. The background measurements were taken with the irradiation device off. The number of background measurements can be automatically set according to different procedural requirements.

[0127] The reading and recording methods during measurement vary depending on the specific verification procedures. Data displayed on the instrument screen is directly read via a video recognition system, and the data is automatically recorded and analyzed to complete the calibration point measurement task. For reading acquisition, the system extracts readings from video images. The reading and recording methods for background measurements, energy response, and linear measurements are the same.

[0128] The energy response was measured by changing the energy point. The energy response experiment was a normalization experiment of the instrument response under different X-ray filtering conditions and energy conditions of Co-60 and Cs-137.

[0129] The calibration point measures V and E, where V is the repeatability symbol and E is the relative standard deviation.

[0130] Reading and recording are performed using the reading acquisition system. The readings are extracted by analyzing the acquired video images. The reading and recording methods for background measurements, energy response, and linear measurements are the same.

[0131] After completing the X-ray laboratory calibration at the gamma field, proceed to the Co-60 and Cs-137 standard radiation fields for further verification.

[0132] To change the linearity of distance measurement, calibration is performed at different dose points at different radiation source distances (the readings at different dose points are different), with at least 5 dose points used for linear calibration.

[0133] The E value at 5 points is calculated as the calibration factor Kc. Different calibration procedures use different calculation methods, and the specific calculation methods are well known to those skilled in the art and are not limited here.

[0134] Return to the calibration point and continue the angular response experiment around the z-axis, and the angular response around the probe axis. Select the appropriate angular response experiment according to the procedure requirements. Perform the experiment in accordance with the uniformly specified calibration procedure.

[0135] The conformity assessment of the corresponding procedures is based on the data in the table. Different instruments have different procedures, so the requirements for the data items in the table are different. The conformity assessment of the instrument must be carried out according to the corresponding calibration procedure requirements. The data content is the degree of conformity between the reading records and analysis results and the procedure requirements.

[0136] The calibration confirmation record is complete. The items to be recorded vary depending on the instrument and the procedure requirements. Generally, they include average value, repeatability, relative standard deviation, linearity, energy response, angular response, uncertainty analysis, etc.

[0137] It should be understood that the specific order or hierarchy of steps in the disclosed process is an example of an exemplary method. Based on design preferences, it should be understood that the specific order or hierarchy of steps in the process may be rearranged without departing from the scope of this disclosure. The appended method claims provide elements of various steps in an exemplary order and are not intended to limit the scope to the specific order or hierarchy described.

[0138] In the above detailed description, various features are combined together in a single embodiment to simplify this disclosure. This approach to disclosure should not be construed as reflecting an intention that embodiments of the claimed subject matter require more features than are explicitly stated in each claim. Rather, as reflected in the appended claims, the invention is presented with fewer features than all of the features of the single disclosed embodiment. Therefore, the appended claims are hereby explicitly incorporated into the detailed description, wherein each claim stands alone as a preferred embodiment of the invention.

[0139] The disclosed embodiments have been described above to enable any person skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be applied to other embodiments without departing from the spirit and scope of this disclosure. Therefore, this disclosure is not limited to the embodiments given herein, but is consistent with the broadest scope of the principles and novel features disclosed in this application.

[0140] The foregoing description includes examples of one or more embodiments. It is certainly impossible to describe all possible combinations of components or methods in order to describe the above embodiments, but those skilled in the art will recognize that further combinations and arrangements of the various embodiments are possible. Therefore, the embodiments described herein are intended to cover all such changes, modifications, and variations falling within the scope of the appended claims. Furthermore, the term "comprising" as used in the specification or claims is used in a manner similar to the term "including." Additionally, the use of any term "or" in the specification of the claims is intended to mean "non-exclusive or."

[0141] Those skilled in the art will also understand that the various illustrative logical blocks, units, and steps listed in the embodiments of the present invention can be implemented by electronic hardware, computer software, or a combination of both. To clearly demonstrate the interchangeability of hardware and software, the functions of the various illustrative components, units, and steps described above have been generally described. Whether such functionality is implemented through hardware or software depends on the specific application and the overall system design requirements. Those skilled in the art can implement the described functions using various methods for each specific application, but such implementation should not be construed as exceeding the scope of protection of the embodiments of the present invention.

[0142] The various illustrative logic blocks or units described in the embodiments of this invention can be implemented or operate the described functions using a general-purpose processor, digital signal processor, application-specific integrated circuit (ASIC), field-programmable gate array or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof. The general-purpose processor can be a microprocessor; alternatively, it can be any conventional processor, controller, microcontroller, or state machine. The processor can also be implemented using a combination of computing devices, such as a digital signal processor and a microprocessor, multiple microprocessors, one or more microprocessors combined with a digital signal processor core, or any other similar configuration.

[0143] The steps of the methods or algorithms described in the embodiments of this invention can be directly embedded in hardware, a software module executed by a processor, or a combination of both. The software module can be stored in RAM, flash memory, ROM, EPROM, EEPROM, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium in the art. Exemplarily, the storage medium can be connected to the processor so that the processor can read information from and write information to the storage medium. Optionally, the storage medium can also be integrated into the processor. The processor and storage medium can be housed in an ASIC, which can be housed in a user terminal. Optionally, the processor and storage medium can also be housed in different components of the user terminal.

[0144] In one or more exemplary designs, the functions described in the embodiments of the present invention can be implemented in hardware, software, firmware, or any combination of these three. If implemented in software, these functions can be stored on a computer-readable medium or transmitted on a computer-readable medium in the form of one or more instructions or code. Computer-readable media include computer storage media and communication media that facilitate the transfer of computer programs from one place to another. Storage media can be any available media that can be accessed by a general-purpose or special-purpose computer. For example, such computer-readable media can include, but is not limited to, RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to carry or store program code in the form of instructions or data structures and other forms that can be read by a general-purpose or special-purpose computer, or a general-purpose or special-purpose processor. Furthermore, any connection can be suitably defined as a computer-readable medium, for example, if the software is transmitted from a website, server or other remote resource via a coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL) or wirelessly, such as infrared, wireless and microwave, it is also included in the defined computer-readable medium. The disks and discs mentioned include compressed disks, laser discs, optical discs, DVDs, floppy disks, and Blu-ray discs. Disks typically copy data magnetically, while disks typically copy data optically using lasers. Combinations of the above can also be contained in computer-readable media.

[0145] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An automatic instrument calibration method for an ionizing radiation standard laboratory, characterized in that, include: Identify the type of the target instrument and determine the corresponding calibration procedure and technical specifications based on the type of the target instrument. The target instrument is installed at the instrument mounting position on the calibration robot, and the type of the target instrument, the calibration procedure, and the technical specifications are set in the calibration robot. Based on the type of the target instrument and the calibration procedure, the target calibration laboratory is determined, and the calibration robot is controlled to transport the target instrument into the target calibration laboratory. The target calibration laboratory is one of several calibration laboratories; According to the calibration procedure and the technical specifications, the calibration robot is controlled to locate the target instrument and automatically read the measurement data of the target instrument to complete the calibration of the target instrument. Control the calibration robot to carry the target instrument out of the target calibration laboratory.

2. The automatic instrument calibration method for an ionizing radiation standard laboratory as described in claim 1, characterized in that, The type of the target instrument being identified includes: Identify the QR code pre-attached to the target instrument to determine the type of the target instrument; wherein, the type of the target instrument includes a handheld inspection device, a personal dosimeter, and / or an environmental dosimeter.

3. The automatic instrument calibration method for an ionizing radiation standard laboratory as described in claim 1, characterized in that, Installing the target instrument at the instrument mounting location on the calibration robot includes: The target instrument is automatically moved from the instrument rack and fixed at the instrument installation position on the calibration robot by a robotic arm, and the target instrument is then powered on.

4. The automatic instrument calibration method for an ionizing radiation standard laboratory as described in claim 1, characterized in that, Controlling the calibration robot to transport the target instrument into the target calibration laboratory includes: When the calibration robot arrives at the entrance of the target calibration laboratory, the shielding door of the target calibration laboratory is automatically opened, and the shielding door is closed after the calibration robot enters the target calibration laboratory; Navigate the calibration robot to a preset transit point within the target calibration laboratory; The transfer point is located within the capture range of a preset optical three-dimensional motion capture system in the target calibration laboratory.

5. The automatic instrument calibration method for an ionizing radiation standard laboratory as described in claim 1, characterized in that, The automatic reading of the measurement data of the target instrument includes: Acquire video images of the target instrument; The measurement result data of the target instrument is extracted from the video image.

6. The automatic instrument calibration method for an ionizing radiation standard laboratory as described in claim 4, characterized in that, Controlling the calibration robot to locate the target instrument includes: The real-time position of the target instrument on the calibration robot is captured by an optical three-dimensional motion capture system within the target calibration laboratory. Based on the real-time location, the calibration point location set in the calibration procedure, and the background measurement location, the calibration robot is controlled to move and position the target instrument at the calibration point location or the background measurement location.

7. The automatic instrument calibration method for an ionizing radiation standard laboratory as described in claim 1, characterized in that, According to the calibration procedure and the technical specifications, the calibration robot is controlled to locate the target instrument and automatically read the measurement data of the target instrument to complete the calibration of the target instrument, including: The calibration robot is controlled by a preset optical three-dimensional motion capture system in the target calibration laboratory to position the target instrument at the background measurement position in the middle of the target calibration laboratory; The target instrument is controlled to perform multiple background measurements on the target calibration laboratory, and the measurement data of the multiple background measurements are recorded; wherein, the number of background measurements is set in the calibration procedure; The shutter of the radiation source is opened, and the calibration robot is controlled to set the target instrument at a position on the central axis of the radiation beam of the radiation source at a preset reference distance from the radiation source; the radiation source is preset to be placed in the target calibration laboratory, and the preset reference distance is determined by the design parameters of the radiation source; The radiation source is controlled to output different preset radiation energies sequentially according to a preset energy response measurement interval. For each preset radiation energy of the radiation source, the energy response measurement data corresponding to the preset radiation energy output by the dosimeter is read. The preset energy response measurement period and the preset radiation energy are recorded in the calibration procedure. The calibration robot is controlled to move and the target instrument is set at different preset calibration points on the central axis of the radiation source beam. The measurement data of the target instrument at each preset calibration point is recorded, and the calibration factor is determined based on the measurement data at all calibration points. The calibration robot is controlled to move and position the target instrument at different preset calibration points on the central axis of the radiation source's beam. At each preset calibration point, the calibration robot controls the angle between the target instrument and the central axis of the radiation source's beam. Measurement data is collected at multiple preset angles at each preset calibration point. The position of each preset calibration point and the corresponding preset angle are pre-stored in the calibration procedure. Based on the measurement data from multiple background measurements, the energy response measurement data corresponding to all preset radiation energies, the measurement data at all preset calibration points, and the measurement data collected at all preset included angles at all preset calibration point locations, and in conjunction with the aforementioned technical specifications, the calibration results are evaluated to determine whether they are qualified. Once the calibration result is deemed satisfactory, the calibration is confirmed to be complete.

8. An automatic instrument calibration device for an ionizing radiation standard laboratory, characterized in that, include: A type determination unit is used to identify the type of the target instrument and determine the corresponding calibration procedure and technical specification requirements based on the type of the target instrument. An instrument mounting unit is used to install the target instrument at the instrument mounting position of the calibration robot, and to set the type of the target instrument, the calibration procedure, and the technical specifications into the calibration robot; The first transfer unit is used to determine the target calibration laboratory according to the type of the target instrument and the calibration procedure, and to control the calibration robot to transport the target instrument into the target calibration laboratory; The target calibration laboratory is one of several calibration laboratories; The calibration unit is used to control the calibration robot to locate the target instrument and automatically read the measurement data of the target instrument to complete the calibration of the target instrument according to the calibration procedure and the technical specifications. The second transfer unit is used to control the calibration robot to carry the target instrument out of the target calibration laboratory.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the program is executed by the processor, it implements the method as described in any one of claims 1-7.

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