Dosimeter management system and combined personal dosimeter

Abstract

The embodiment of the utility model provides a dosimeter management system and a combined type personal dosimeter. The dosimeter management system comprises the combined type personal dosimeter, a charging box and a control terminal, the combined type personal dosimeter comprises an active type personal dosimeter and a thermoluminescent dosimeter sheet; the charging box is provided with a slot, and the size of the slot is matched with the size of the composite personal dosimeter. The charging box is in communication connection with the control terminal; bluetooth communication modules are arranged on the active personal dosimeter and the charging box; the dosimeter management system further comprises a reader used for reading data information of the thermoluminescent dosimeter. According to the technical scheme, the dosage pieces in the active personal dosimeter and the passive dosimeter are integrated, and a worker does not need to wear the two dosimeters at the same time when using the dosimeter, so that the workload of the worker is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of radiation monitoring management, in particular to a dosimeter management system and a composite personal dosimeter. Background Art

[0002] Existing personal dose monitors are divided into active dosimeters (i.e., electronic active dosimeters) and passive dosimeters (TLD dosimeters). Electronic active dosimeters can directly display the accumulated dose and real-time dose rate to the wearer, and give timely alarms in high-dose fields. However, due to their high energy threshold for photons and the fact that users may consider the risks of reliability and data loss, electronic active dosimeters are not suitable for use as recognized or legal dosimeters. Passive TLD dosimeters can measure the dose accumulated over a long period of time, and have the advantages of high sensitivity, long-term stability, and low price. However, the data timeliness is poor, and the wearer is prone to wearing it improperly or even losing it, resulting in distorted measurement results. Therefore, for the nuclear industry, such as nuclear power plants, and other fields, workers who have high requirements for data stability and alarm timeliness generally need to wear both active and passive dosimeters to monitor personal doses.

[0003] In the process of implementing the present utility model, the inventors found that there are at least the following problems in the prior art:

[0004] Since active and passive dosimeters work on different principles, they are independent devices that need to be worn separately, taking up a large space. In addition, wearing two sets of dosimeters at the same time places a heavy burden on the workers' movements. Therefore, how to reduce the impact of dosimeters on workers' movements is a problem that needs to be solved. Utility Model Content

[0005] The embodiments of the utility model provide a dosimeter management system and a composite personal dosimeter, which are used to reduce the burden of the dosimeter on the operator.

[0006] To achieve the above-mentioned purpose, an embodiment of the utility model provides a dosimeter management system, including a composite personal dosimeter, a charging box, and a control terminal; the composite personal dosimeter includes an active personal dosimeter and a thermoluminescent dosimeter sheet; a slot is provided on the charging box, and the size of the slot matches the size of the composite personal dosimeter; the charging box and the control terminal are connected for communication; the active personal dosimeter and the charging box are both provided with a Bluetooth communication module; the dosimeter management system also includes a reader for reading data information of the thermoluminescent dosimeter sheet.

[0007] On the other hand, an embodiment of the utility model also provides a composite personal dosimeter, including an active personal dosimeter, a thermoluminescent dosimeter, a dosimeter tray, and a card tray. A card slot is provided on one side of the active personal dosimeter, and the card tray and the card slot are snap-fitted; a groove is provided on the card tray, and the dosimeter tray and the groove are snap-fitted; a dosimeter tray is provided with a dosimeter accommodating groove, and the diameter of the dosimeter accommodating groove is larger than the outer diameter of the thermoluminescent dosimeter.

[0008] The above technical solution has the following beneficial effects:

[0009] In this technical solution, the active personal dosimeter and the dose sheets in the passive dosimeter are integrated into one. Compared with the traditional method of wearing two sets of equipment at the same time, the integrated dosimeter is small in size and light in weight, thus greatly reducing the workload of the staff.

[0010] In addition, in this technical solution, a dosimeter charging box with both charging and data reading and writing functions is designed. Through this dosimeter charging box, the active personal dosimeter can be connected to the personal dose management system of the control terminal (a software system set in the control terminal, which is a prior art), so that the management of personal dose files is more standardized. When the personal dose equivalent exceeds the national standard limit, the time when the active dose of the personnel exceeds the threshold can be checked and the corresponding accident investigation can be carried out to improve the monitoring level and achieve the purpose of supervision. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0012] Figure 1 This is a structural diagram of a dosimeter management system according to an embodiment of the utility model;

[0013] Figure 2 It is a schematic diagram of the structure of a composite personal dosimeter in an embodiment of the utility model;

[0014] Figure 3 is a schematic diagram of a charging box in an embodiment of the utility model;

[0015] Figure 4 It is a circuit schematic diagram of the charging box in the embodiment of the utility model;

[0016] Figure 5 It is a structural schematic diagram of a composite personal dosimeter in an embodiment of the utility model from another viewing angle;

[0017] Figure numbers: 10. Composite personal dosimeter; 11. Active personal dosimeter; 12. Card slot; 13. Dosage sheet tray; 14. Dosage sheet receiving slot; 15. Thermoluminescent dosimeter; 16. Card tray; 17. Groove; 18. Back clip; 19. Magnetic suction; 20. Charging box; 21. Box body; 22. Display screen; 23. Box cover; 24. Slot; 30. Reader; 40. Control terminal. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] like Figure 1 As shown, an embodiment of the utility model provides a dosimeter management system, including a composite personal dosimeter 10, a charging box 20, and a control terminal 40; the composite personal dosimeter 10 includes an active personal dosimeter 11 and a thermoluminescent dosimeter 15 (i.e., the TLD disc used in the existing passive dosimeter); a slot 24 is provided on the charging box 20, and the size of the slot 24 matches the size of the composite personal dosimeter 10; the charging box 20 and the control terminal 40 are connected for communication; the active personal dosimeter 11 and the charging box 20 are both provided with a Bluetooth communication module; the dosimeter management system also includes a reader 30 for reading data information of the thermoluminescent dosimeter 15.

[0020] In order to solve the above problems, a composite personal dosimeter is designed in this technical solution, which integrates the functions of active dosimeter and passive dosimeter TLD. The active dosimeter integrates semiconductor detectors, special electronic chips, processors, wireless modules, batteries, etc. in a small shell through miniaturization technology, and is fixed to the hands, chest and other parts by means of a back clip 18 to achieve real-time dose rate and cumulative dose measurement, and the collection frequency can reach 1 time per minute. Passive measurement uses mature TLD discs (thermoluminescent dosimeter 15), thereby integrating the functions of the two, so that users no longer need to wear two sets of equipment at the same time, thereby reducing the burden on staff. At the same time, the system is designed with a charging box 20 for the dosimeter that has both charging and data reading and writing functions. Through the charging box 20, the active personal dosimeter can be connected to the personal dose management system (the same as the personal dose management system in the prior art) set on the control terminal 40, so that the management of personal dose files is more standardized; at the same time, when it is necessary to obtain the dose data of the passive dosimeter (usually regular reading), take out the thermoluminescent dose sheet 15 and put it into the reader 30, and the reader 30 can read the data in the thermoluminescent dose sheet 15 and enter it into the personal dose management system.

[0021] The dosimeter management system adopts C / S (Client / Server) architecture and can operate on multiple clients simultaneously. The staff wears the composite personal dosimeter 10 to measure the real-time dose rate and cumulative dose, and uploads the data of the active personal dosimeter 11 through the charging box 20. In addition, the inspector enters the TLD dose data in the thermoluminescent dose sheet 15 into the personal dose management system to form a radiation personnel dose file.

[0022] Further, such as Figure 2 As shown, the structure of the composite personal dosimeter 10 is shown. The composite personal dosimeter 10 also includes a dosimeter tray 13 and a card holder 16. A card slot 12 is provided on one side of the active personal dosimeter 11, and the card holder 16 is connected to the card slot 12 by a card engagement; a groove 17 is provided on the card holder 16, and the dosimeter tray 13 is connected to the groove 17 by a card engagement; a dosimeter tray 13 is provided with a dosimeter accommodating groove 14, and the diameter of the dosimeter accommodating groove 14 is larger than the outer diameter of the thermoluminescent dosimeter 15. Before use, the thermoluminescent dosimeter 15 is first inserted into the corresponding dosimeter accommodating groove 14, and then the dosimeter tray 13 is placed in the groove 17, and then the card holder 16 is inserted into the card slot 12, so that the thermoluminescent dosimeter 15 can be connected to the active personal dosimeter 11, so that the composite personal dosimeter 10 has the functions of both active and passive dosimeters.

[0023] Furthermore, the active personal dosimeter 11 and the charging box 20 are provided with matching dosimeter interfaces, such as in the form of pins, etc. When the dosimeter interfaces of the two are connected to each other, the charging box 20 can charge the active personal dosimeter 11 (the thermoluminescent dosimeter 15 in the composite personal dosimeter 10 does not need to be charged), or the dosimeter interface is directly used to realize data communication between the charging box 20 and the active personal dosimeter 11.

[0024] Furthermore, the dosimeter charging interface and the charging box charging interface both include magnetic components, such as Figure 5 As shown, through the magnetic attraction 19, it can be ensured that the composite personal dosimeter 10 is in good contact with the magnetic attraction component set at the bottom of the slot 24, ensuring that it is placed in place for subsequent charging or data transmission.

[0025] Furthermore, the dose tablet tray 13 is provided with a plurality of dose tablet accommodating slots 14 , preferably three; each dose tablet accommodating slot 14 can accommodate a thermoluminescent dose tablet 15 .

[0026] Furthermore, in actual application, there are many on-site workers, so each dosimeter management system should be provided with multiple composite personal dosimeters 10; the charging box 20 is provided with multiple slots 24, such as Figure 3 As shown, each slot 24 can be inserted with a composite personal dosimeter 10 to charge the composite personal dosimeter 10 or read data.

[0027] Furthermore, for the convenience of storage, the charging box 20 can be designed in the shape of a rectangular box. The charging box 20 includes a box body 21 and a box cover 23. The box cover 23 is hinged on the side of the box body 21. The slot 24 is provided on the box body 21. The box body 21 is also provided with a display screen 22. The display screen 22 is an LCD display screen, which can be used to display information such as the current time, the power of the charging box, and the status of the composite personal dosimeter. The charging box 20 can read the dosage data of the composite personal dosimeter 10 through Bluetooth and serial port, and upload the read dosage data to the personal dosage management system of the control terminal 40 through 5G+ Ethernet for the next statistical analysis.

[0028] Further, such as Figure 4As shown, the charging box 20 includes an MCU module, and an LCD display module, a PHY chip, a FLASH chip, a charging box power detection module, a communication module, an RTC module, an indicator light module, a Hall sensor, and a USB interface, which are electrically connected to the MCU module respectively; the dosimeter interface of the charging box is electrically connected to the MCU module. In a specific embodiment, the MCU can use STMicroelectronics' STM32F407ZGT6 for data processing, data transmission, and power management; the USB interface is used to power the charging box and serve as a USB data transmission interface; the function of the PHY chip is to complete signal conversion and transmission, signal quality monitoring and adjustment, and data error processing; the Hall sensor can be used to detect the open and closed state of the box cover 23, and output the detection signal to the MCU for processing; the FLASH chip can store historical data, fonts and other data; the indicator light module is used to drive the indicator light on the box body 21, and the indicator light is used to display the in-place status and communication status of the composite personal dosimeter 10; the dosimeter interface is an interface for charging or communication (in addition to Bluetooth communication, the composite personal dosimeter 10 and the charging box 20 can also use wired communication, and the dosimeter interfaces of the two are in contact and connected with each other); the RTC module is used to provide a real-time clock; the communication module is connected to the main board through a connector, and can provide wireless communications such as Bluetooth and 5G; the charging box power detection module is used to detect the power of the battery built into the charging box 20; in addition, the charging box 20 uses an RJ45 interface as an Ethernet communication interface.

[0029] In addition, the back of the combined personal dosimeter is Figure 5 As shown, the staff wears the composite personal dosimeter by means of a back clip 18 provided thereon.

[0030] The embodiment of the utility model also provides a composite personal dosimeter, including an active personal dosimeter 11, a thermoluminescent dosimeter 15, a dosimeter tray 13, and a card tray 16. A card slot 12 is provided on one side of the active personal dosimeter 11, and the card tray 16 is snap-fitted to the card slot 12; a groove 17 is provided on the card tray 16, and the dosimeter tray 13 is snap-fitted to the groove 17; a dosimeter tray 13 is provided with a dosimeter accommodating groove 14, and the diameter of the dosimeter accommodating groove 14 is larger than the outer diameter of the thermoluminescent dosimeter 15.

[0031] The working process of a specific embodiment of the utility model is as follows:

[0032] 1) Open the housing of the composite personal dosimeter 10, insert the thermoluminescent dosimeter 15 (TLD disc) into the corresponding dosimeter accommodating slot 14, and then insert the dosimeter tray 13 loaded with the thermoluminescent dosimeter 15 into the card slot 12 through the card holder 16, so that the thermoluminescent dosimeter 15 is fixedly connected to the active personal dosimeter 11 as a whole;

[0033] 2) Connect the charging box 20 to the network cable and the Type-C charging cable, and place the composite personal dosimeter 10 into the slot 24 in the charging box 20 to keep the composite personal dosimeter 10 online;

[0034] 3) Control the personal dose management system on the terminal 40 and input the staff information;

[0035] 4) Binding the staff member with the online composite personal dosimeter 10 on the personal dose management system, and distributing the composite personal dosimeter 10 with the bound staff member to the corresponding staff member for wearing;

[0036] 5) Depending on the power level, the composite personal dosimeter 10 can be put back into the charging box 20 for charging at a fixed time. At the same time, the historical data in the active personal dosimeter 11 will be automatically read out (the active personal dosimeter 11 and the charging box 20 are connected by wireless communication through the Bluetooth communication module, or the corresponding dosimeter interfaces of the two are connected by wired communication) and transmitted to the personal dose management system on the control terminal 40;

[0037] 6) Periodically (usually once a quarter) collect the dose sheet tray 13 on the composite personal dosimeter 10, take out the TLD disc and put it into the reader 30, read the data, and enter the read result into the personal dose management system;

[0038] 7) The personal dose management system will compare and analyze the passive dose data (taken from the active personal dose meter 11) and the passive dose data (taken from the thermoluminescent dose sheet 15) to obtain a more accurate personal dose accumulation value.

[0039] The equipment parameters of the composite personal dosimeter 10 in this specific embodiment are:

[0040] Dose rate range: background ~ 20mSv / h;

[0041] Relative inherent error: ≤±15%;

[0042] Energy response: 20keV~7MeV;

[0043] Charging method: Magnetic suction, powered by charging box 20 or charging cable, charging time is less than 2 hours;

[0044] Battery life: >80 hours;

[0045] Mass: less than 30g;

[0046] Size: less than 52×38×14mm;

[0047] Sealing grade: IP66;

[0048] The alarm threshold can be set, with sound and light alarm function;

[0049] Optional Bluetooth transmission module, used with mobile phone APP;

[0050] Data communication: Data is transmitted to the data terminal via magnetic suction or Bluetooth.

[0051] In the above detailed description, various features are grouped together in a single embodiment to simplify the disclosure. This method of disclosure should not be interpreted as reflecting an intention that the embodiments of the claimed subject matter require more features than those clearly stated in each claim. On the contrary, as reflected in the attached claims, the utility model is in a state with less than all the features of the disclosed individual embodiments. Therefore, the attached claims are hereby expressly incorporated into the detailed description, with each claim acting alone as a separate preferred embodiment of the utility model.

[0052] The disclosed embodiments are described above to enable any person skilled in the art to implement or use the present invention. Various modifications of these embodiments are obvious to those skilled in the art, and the general principles defined herein may also be applied to other embodiments without departing from the spirit and scope of the present disclosure. Therefore, the present disclosure is not limited to the embodiments given herein, but is consistent with the broadest scope of the principles and novel features disclosed in the present application.

[0053] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only the specific implementation method of the utility model and is not used to limit the protection scope of the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A dosimeter management system, characterized in that: The invention comprises a composite personal dosimeter (10), a charging box (20), and a control terminal (40); the composite personal dosimeter (10) comprises an active personal dosimeter (11) and a thermoluminescent dosimeter sheet (15); a slot (24) is provided on the charging box (20), and the size of the slot (24) matches the size of the composite personal dosimeter (10); the charging box (20) and the control terminal (40) are connected for communication; the active personal dosimeter (11) and the charging box (20) are both provided with a Bluetooth communication module; the dosimeter management system also comprises a reader (30) for reading data information of the thermoluminescent dosimeter sheet (15).

2. The dosimeter management system according to claim 1, characterized in that: The composite personal dosimeter (10) further comprises a dose sheet tray (13) and a card tray (16); a card slot (12) is provided on one side of the active personal dosimeter (11); the card tray (16) and the card slot (12) are snap-fitted; a groove (17) is provided on the card tray (16); the dose sheet tray (13) and the groove (17) are snap-fitted; and a dose sheet accommodating groove (14) is provided on the dose sheet tray (13); the diameter of the dose sheet accommodating groove (14) is larger than the outer diameter of the thermoluminescent dose sheet (15).

3. The dosimeter management system according to claim 2, characterized in that: The active personal dosimeter (11) and the charging box (20) are provided with dosimeter interfaces that match each other.

4. The dosimeter management system according to claim 3, characterized in that: The dosimeter charging interface and the charging box charging interface both include magnetic components.

5. The dosimeter management system according to claim 2, characterized in that: The dosage tablet tray (13) is provided with a plurality of dosage tablet accommodating grooves (14).

6. The dosimeter management system according to claim 2, characterized in that: There are a plurality of the composite personal dosimeters (10); and a plurality of slots (24) are provided on the charging box (20).

7. The dosimeter management system according to claim 2, characterized in that: The charging box (20) further comprises a box body (21) and a box cover (23), wherein the box cover (23) is hinged on the side of the box body (21); the slot (24) is arranged on the box body (21), and a display screen (22) is also arranged on the box body (21).

8. The dosimeter management system according to claim 3, characterized in that: The charging box (20) comprises an MCU module, and an LCD display module, a PHY chip, a FLASH chip, a charging box power detection module, a communication module, an RTC module, an indicator light module, a Hall sensor, and a USB interface, which are electrically connected to the MCU module respectively; the dosimeter interface of the charging box is electrically connected to the MCU module.

9. A composite personal dosimeter, characterized in that: The invention comprises an active personal dosimeter (11), a thermoluminescent dosimeter (15), a dosimeter tray (13), and a card tray (16); a card slot (12) is provided on one side of the active personal dosimeter (11); the card tray (16) and the card slot (12) are connected in a snap-fit ​​manner; a groove (17) is provided on the card tray (16); the dosimeter tray (13) and the dosimeter tray (13) are connected in a snap-fit ​​manner; a dosimeter tray (13) is provided with a dosimeter accommodating groove (14); the diameter of the dosimeter accommodating groove (14) is larger than the outer diameter of the thermoluminescent dosimeter (15).

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