Personal dosimeter data continuous transmission, positioning traceability and power consumption management method and system

Abstract

The invention belongs to the technical field of radiation dose monitoring, and aims to solve the problems of incomplete dose data, slow radiation source position positioning and high power consumption of a dosimeter caused by signal interruption. The invention provides a data continuous transmission, positioning traceability and power consumption management method and system for a personal dosimeter. A data acquisition and encapsulation module is used for acquiring radiation data in real time and encapsulating the radiation data into a radiation data packet; the data transmission module is used for transmitting the radiation data packet to the server and receiving a double-level ACK response returned by the server; the disconnection detection module is used for judging whether the dosimeter is disconnected or not; the data caching module is used for caching radiation data packets generated when the dosimeter is disconnected; and the data screening and supplementary transmission module is used for screening out missing radiation data packets in the server and supplementary transmitting the missing radiation data packets to the server. According to the invention, broken-line continuous transmission of dose data in a nuclear power complex environment can be realized, the position of a radiation source can be rapidly positioned, and real-time performance and endurance requirements can be balanced.

Description

Technical Field

[0001] The present invention belongs to the technical field of radiation dose monitoring, and particularly relates to a data continuous transmission, positioning and traceability, and power consumption management method and system for a personal dosimeter. Background Art

[0002] Traditional dosimeters have no dose traceability function and cannot synchronize the real-time position and real-time dose information of personnel. If the dosimeter gives an over-threshold alarm in the controlled area, radiation protection personnel use the original dose traceability tracking method, and use a more sensitive dose rate meter to check each point of the travel path of the worker wearing the dosimeter one by one. The efficiency is low and the emergency response is lagged. It is impossible to quickly associate the dose mutation with the radiation source position, resulting in a delay in the leakage response.

[0003] Currently, personal dosimeters generally rely on WiFi / 5G for direct data transmission, but in complex nuclear power environments (such as metal shielding, underground facilities, etc.), the wireless signal coverage is incomplete, and the packet loss rate of wireless measurement data transmission is as high as 30%; there is no mechanism for continuous transmission after disconnection at the dosimeter end. Therefore, if the WIFI / 5G signal is interrupted, the server end cannot obtain the complete dose history, affecting the real-time performance and traceability of dose monitoring.

[0004] In addition, most wireless intelligent dosimeters use a fixed strategy to regularly upload dose data and position information, and cannot adapt to the dose change scenario, resulting in redundant or key data omission. At the same time, the regular upload strategy requires high-frequency communication, which will increase the device power consumption. Summary of the Invention

[0005] In order to solve at least one of the above technical problems existing in the prior art, the present invention provides a data continuous transmission, positioning and traceability, and power consumption management method and system for a personal dosimeter.

[0006] The present invention is implemented by the following technical solutions: A method for data continuous transmission, positioning traceability, and power consumption management of a personal dosimeter, comprising the following steps: S1: Match the reader at the entrance of the nuclear power plant control area, activate and load a preset data upload policy; the data upload policy includes a timing upload policy and a dynamic upload policy; S2: Obtain the radiation information on the path during activities in the control area and encapsulate it to obtain a radiation data packet; the radiation data packet includes a timestamp, an incrementing serial number, a dose rate, an accumulated dose, and a location tag; S3: Based on the data upload policy, send the radiation data packet to the server; the radiation data packet is used to trigger the server to generate a two-level ACK response; S4: Receive the two-level ACK response, and based on the two-level ACK response and the signal strength of the dosimeter, determine whether the dosimeter is disconnected; if it is determined to be in a connected state, return to step S3; if it is determined to be disconnected, execute step S5; S5: Based on the data upload policy corresponding to the previous radiation data packet, continue to store the new radiation data packet in the local cache of the dosimeter and mark the incrementing serial number; until the signal is restored and the latest data-level ACK from the server is received; S6: Compare the serial number in the latest data-level ACK with the serial numbers in the local cache of the dosimeter, and filter out the missing radiation data packets; S7: Re-upload the missing radiation data packets to the server in chronological order, clear the uploaded cache data; and return to step S3; S8: After the operation in the nuclear power plant control area is completed, match the reader at the exit of the nuclear power plant control area and leave the control area.

[0007] Preferably, the timing upload policy is based on a fixed upload period for transmitting radiation data packets; the dynamic upload policy dynamically adjusts the upload period based on the dose change rate for transmitting radiation data packets; the dose change rate is based on the real-time dose detected by the dosimeter and is obtained through a sliding window algorithm.

[0008] Preferably, the dynamic upload policy includes a stable mode, a warning mode, and an emergency mode; when the dose change rate is less than 5%, the corresponding dynamic upload policy is the stable mode, and in the stable mode, a radiation data packet is uploaded every 60s, which is the same as the upload period in the timing upload policy; when the dose change rate is greater than or equal to 5% and less than 20%, the corresponding dynamic upload policy is the warning mode, and in the warning mode, a radiation data packet is uploaded every 30s; when the dose change rate is greater than or equal to 20%, the corresponding dynamic upload policy is the emergency mode, and in the emergency mode, a radiation data packet is uploaded every 1s.

[0009] Preferably, the update frequency of the position tag is set based on the data upload policy; when the data upload policy is a timed upload policy or a stable mode in the dynamic upload policy, the position of the dosimeter is updated every 60 seconds; when the data upload policy is a warning mode in the dynamic upload policy, the position of the dosimeter is updated every 30 seconds; when the data upload policy is an emergency mode in the dynamic upload policy, the position of the dosimeter is updated every 1 second; the dosimeter obtains the position tag through WiFi fingerprinting.

[0010] Preferably, when the dynamic upload policy is in the emergency mode, the radiation data packet further includes a leakage identifier, and the leakage identifier is used to mark the current leakage position; if the same position tag continuously triggers the emergency mode, the dosimeter will mark the position as a potential leakage point as the leakage identifier; the server triggers an emergency response at the corresponding position based on the leakage identifier in the radiation data packet.

[0011] Preferably, when the dynamic upload policy is in the emergency mode, the dosimeter triggers a local audible and visual vibration alarm and an emergency mode wireless broadcast; the emergency mode wireless broadcast is used to send a high-frequency alarm signal to the server, and the high-frequency alarm signal is used to trigger the server to aggregate the dose rate according to the position tag, generate a regional risk map or automatically push an alarm message to the access control system to block the passage of the leakage area.

[0012] Preferably, the two-level ACK response includes a data-level ACK and a heartbeat-level ACK. The data-level ACK contains the highest serial number of the radiation data packet received by the server; the heartbeat-level ACK is sent by the server to the dosimeter every 30s, and the heartbeat-level ACK is used to maintain the monitoring of the long connection state.

[0013] Preferably, based on the two-level ACK response and the signal strength of the dosimeter, the basis for judging whether the dosimeter is disconnected is: the signal strength of the dosimeter is less than the warning threshold and at the same time the two-level ACK times out; the judgment basis for the two-level ACK timeout is: the returned data-level ACK is not received or the heartbeat-level ACK is not received continuously for 2 times.

[0014] The present invention also provides a data continuous transmission, positioning traceability and power consumption management system for a personal dosimeter, including a reader matching module, a data acquisition and encapsulation module, a data transmission module, a disconnection detection module, a data caching module and a data screening and retransmission module; wherein the reader matching module is used to match the dosimeter with the readers at the entrances and exits of the control area; the data acquisition and encapsulation module is used to collect radiation data in real time and encapsulate it into radiation data packets; the data transmission module is used to transmit the radiation data packets to the server and receive the two-level ACK response returned by the server, and the strategies for uploading the radiation data packets include a timing upload strategy and a dynamic upload strategy; the disconnection detection module is used to determine whether the dosimeter is disconnected based on the two-level ACK response and the signal strength of the dosimeter; the data caching module is used to cache the radiation data packets generated when the dosimeter is disconnected; the data screening and retransmission module is used to screen out the missing radiation data packets in the server and retransmit the missing radiation data packets to the server.

[0015] Preferably, it further includes an emergency response module, which is used to trigger local audible and visual vibration alarms and emergency mode wireless broadcasts at the dosimeter end, and trigger the server to aggregate the dose rates according to the location tags, generate a regional risk map or automatically push alarm information to the access control system to block the passage of the leakage area.

[0016] Compared with the prior art, the beneficial effects of the present invention are: The present invention can realize the disconnection continuous transmission and integrity guarantee of dose data in the complex environment of nuclear power, solve the problem that the wireless signal interruption causes discontinuous data and the server cannot trace the complete dose history within a working cycle. At the same time, it can realize the association between dose data and personnel location information, assist in quickly locating the radiation source position when the dose exceeds the threshold, improve the emergency response efficiency, reduce manual intervention, and reduce the operation risk of nuclear power plants. In addition, it can also dynamically adjust the data upload strategy based on the dose change rate, balance the real-time performance and battery life requirements, adapt to the dose change scenario, ensure the timely and accurate key data, and extend the battery life of the device. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 It is a flowchart of the method of the present invention. Detailed Embodiments

[0019] In combination with the accompanying drawings in the embodiments of the present invention, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation manners obtained by those of ordinary skill in the art without creative efforts belong to the scope protected by the present invention.

[0020] It should be noted that the structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those who are familiar with this technology to understand and read, and are not used to limit the limited conditions under which the present invention can be implemented. Therefore, they do not have any technical substance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should fall within the scope covered by the technical content disclosed by the present invention. It should be noted that in this specification, relational terms such as first and second are only used to distinguish one entity from several other entities, and do not necessarily require or imply any actual relationship or order between these entities.

[0021] The present invention provides an embodiment: as Figure 1 shown, a method for data continuous transmission, positioning traceability and power consumption management of a personal dosimeter, including the following steps: S1: Match the infrared / NFC reader at the entrance of the nuclear power plant control area, enter the nuclear power plant control area, and automatically activate and load a preset data upload policy; the data upload policy includes a timing upload policy and a dynamic upload policy; The timing upload policy is based on a fixed upload period to transmit radiation data packets; the dynamic upload policy dynamically adjusts the upload period based on the dose change rate to transmit radiation data packets, and is applicable to low-dose rate stable scenarios; the dose change rate is based on the real-time dose detected by the dosimeter and is obtained through a sliding window algorithm.

[0022] S2: Obtain the radiation information on the path during activities in the control area and encapsulate it to obtain a radiation data packet; the radiation data packet includes a timestamp, an incrementing serial number, a dose rate, an accumulated dose, and a location tag; the dosimeter obtains the location tag through WiFi fingerprint. The timestamp is calibrated each time entering the control area and synchronized with the server time; the incrementing serial number is a 32-bit unique identifier and counts cyclically; the unit of the dose rate is microSievert per hour (μSv / h), and the accuracy is 0.1 μSv / h; the unit of the accumulated dose is microSievert (μSv), and the accuracy is 0.1 μSv; after being encrypted, the radiation data packet is transmitted to the server.

[0023] S3: Based on the data upload strategy, send the radiation data packet to the server; the radiation data packet is used to trigger the server to generate a two - level ACK response; each time a data is uploaded by the dosimeter, a unique incremental serial number and a timestamp are attached, and the server returns an ACK signal carrying the serial number to confirm the reception status.

[0024] The dynamic upload strategy includes a stable mode, a warning mode, and an emergency mode; when the dose change rate is less than 5%, the corresponding dynamic upload strategy is the stable mode, and in the stable mode, a radiation data packet is uploaded every 60s, which is the same as the upload period in the timed upload strategy; when the dose change rate is greater than or equal to 5% and less than 20%, the corresponding dynamic upload strategy is the warning mode, and in the warning mode, a radiation data packet is uploaded every 30s; when the dose change rate is greater than or equal to 20%, the corresponding dynamic upload strategy is the emergency mode, and in the emergency mode, a radiation data packet is uploaded every 1s.

[0025] The update frequency of the position tag is set based on the data upload strategy; if the data upload strategy is the timed upload strategy or the stable mode in the dynamic upload strategy, the position of the dosimeter is updated every 60 seconds; if the data upload strategy is the warning mode in the dynamic upload strategy, the position of the dosimeter is updated every 30 seconds; if the data upload strategy is the emergency mode in the dynamic upload strategy, the position of the dosimeter is updated every 1 second; S4: Receive the two - level ACK response, and based on the two - level ACK response and the signal strength of the dosimeter, determine whether the dosimeter is disconnected; if it is determined to be in the connected state, return to step S3; if it is determined to be disconnected, execute step S5; The two - level ACK response includes a data - level ACK and a heartbeat - level ACK. The data - level ACK contains the highest serial number Nmax of the radiation data packet received by the server, which is used to mark data integrity; the heartbeat - level ACK is sent from the server to the dosimeter every 30s, and the heartbeat - level ACK is used to maintain the monitoring of the long - connection state.

[0026] The basis for determining whether the dosimeter is disconnected based on the two - level ACK response and the signal strength of the dosimeter is: the signal strength of the dosimeter is less than the warning threshold and at the same time the two - level ACK times out; the judgment basis for the two - level ACK timeout is: the returned data - level ACK is not received or the heartbeat - level ACK is not received continuously for 2 times; the warning threshold is - 90dBm (decibel milliwatt).

[0027] S5: Based on the data upload strategy corresponding to the previous radiation data packet, continue to store the new radiation data packet in the local cache of the dosimeter, mark the incremental serial numbers Nmax + 1~Nmax + X, where X is the number of radiation data packets in the local cache during the disconnection period; until the signal recovers and the latest data - level ACK from the server is received; S6: Compare the sequence number in the latest data-level ACK with the sequence number in the local cache of the dosimeter, and filter out the missing radiation data packets (Nmax + 1 to Nmax + X); S7: Re-transmit the missing radiation data packets to the server in chronological order, and the server performs conflict detection (double verification based on timestamp and sequence number); the dosimeter clears the uploaded cache data; and return to step S3; S8: After the operation in the nuclear power plant control area is completed, match the reader at the exit of the nuclear power plant control area and leave the control area.

[0028] In addition, when the dynamic upload policy is in the emergency mode, the radiation data packet also includes a leakage identifier, which is used to mark the current leakage location; the dosimeter is built-in with a low-power MCU and performs the following analysis in real time: if the same location tag continuously triggers the emergency mode, the dosimeter will mark the location as a potential leakage point as the leakage identifier; the server triggers an emergency response at the corresponding location based on the leakage identifier in the radiation data packet.

[0029] When the dynamic upload policy is in the emergency mode, the dosimeter triggers local audible and visual vibration alarms and emergency mode wireless broadcasts; the local audible and visual vibration alarms use a buzzer, LED and vibration to prompt personnel to evacuate; the emergency mode wireless broadcast is used to send a high-frequency alarm signal to the server, and the high-frequency alarm signal is used to trigger the server to aggregate the dose rate according to the location tag, generate a regional risk map or automatically push alarm information to the access control system to block the leakage area passage.

[0030] With the support of the positioning and tracing and dynamic power management system, when the dose rate changes suddenly, the dosimeter will synchronously upload dose data and location tags at high frequency to assist the server in building a high-precision leakage point model. And the dosimeter will also independently complete dynamic policy triggering, leakage location tag binding and local alarm, achieve fast response through local analysis, reduce dependence on the cloud, and improve the autonomous perception, decision-making and execution capabilities of the dosimeter.

[0031] The present invention also provides a data continuous transmission, positioning traceability and power consumption management system for a personal dosimeter, including a reader matching module, a data acquisition and encapsulation module, a data transmission module, a disconnection detection module, a data caching module, a data screening and retransmission module, and an emergency response module; wherein the reader matching module is used to match the dosimeter with the readers at the entrance and exit of the control area; the data acquisition and encapsulation module is used to collect radiation data in real time and encapsulate it into radiation data packets; the data transmission module is used to transmit the radiation data packets to the server and receive the two-level ACK response returned by the server, and the strategies for uploading the radiation data packets include a timing upload strategy and a dynamic upload strategy; the disconnection detection module is used to determine whether the dosimeter is disconnected based on the two-level ACK response and the signal strength of the dosimeter; the data caching module is used to cache the radiation data packets generated when the dosimeter is disconnected; the data screening and retransmission module is used to screen out the missing radiation data packets in the server and retransmit the missing radiation data packets to the server; the emergency response module is used to trigger local audible, light and vibration alarms and emergency mode wireless broadcasts at the dosimeter end, and trigger the server to aggregate the dose rates according to the location tags, generate a regional risk map or automatically push alarm information to the access control system to block the leakage area passage.

[0032] Through the unique incrementing serial number and ACK confirmation mechanism, the server can accurately identify the missing data segments. Combining with the dynamic caching strategy during disconnection, the data loss rate is reduced from the traditional 30% to less than 5%; based on the retransmission logic of the serial number after communication is restored, it ensures the continuous traceability of historical dose data.

[0033] Through signal strength threshold (RSSI < -90dBm) early warning and two-level ACK detection (data level + heartbeat level), it solves the misjudgment problem caused by signal fluctuations in the nuclear power metal shielding area, where RSSI is the signal strength; during disconnection, cache data according to the dynamic strategy to adapt to different scenario requirements (such as high-frequency storage in high-radiation areas); through the conflict detection algorithm (double verification of timestamp + serial number), it avoids data duplication or omission, and improves the server processing efficiency.

[0034] Based on the dynamic upload strategy of the dose change rate, data is uploaded every second in the emergency mode. The server can construct a second-level radiation leakage timeline, and the leakage source positioning time is shortened to within 2 minutes; the location tag is bound to the dose data in real time, and the server generates a regional heat map to quickly lock the leakage point, reducing the manual inspection workload by 90%. In the stable mode, it is uploaded at 60-second intervals, and the power consumption is reduced by 60%; in the emergency mode, only the detector and communication module are activated to avoid redundant power consumption; after comprehensive optimization, the device battery life is extended from the traditional 8 hours to more than 48 hours, meeting the long-term operation requirements of nuclear power. The dosimeter is built-in with a low-power MCU to perform edge computing. When the same location tag continuously triggers the emergency mode, it autonomously marks potential leakage points and broadcasts alarms, reducing the dependence on the cloud server.

[0035] The following is further illustrated with specific embodiments: 1. Signal interruption scenario: Scenario: A staff member wears a dosimeter and enters the underground floor of a nuclear power plant to work. The WiFi signal is interrupted for 10 minutes during the work.

[0036] Device response: When the dosimeter detects that the signal strength RSSI < -90dBm and triggers a signal warning, and after the dosimeter sends the Nth data and does not receive the data-level ACK returned by the server, the device determines that it is in a disconnected state at this moment. The dosimeter starts to cache data (during which the device has been in a stable mode and adopts a 60-second timed upload strategy, and the cached data sequence numbers are from N to N + 10). After 10 minutes, the staff member returns to the signal coverage area, and the dosimeter receives the data ACK returned by the server (at this time, the first sequence number in the data ACK returned by the server is N - 1, and the last sequence number is N + 10).

[0037] Result: Automatically retransmit the data of the radiation data packets with sequence numbers from N to N + 1 in order. The server verifies the time stamp and sequence number, and reconstructs the complete dose curve without data omission.

[0038] 2. Emergency response to dose mutation: Scenario: A staff member wears a dosimeter and enters the leakage area from a low-dose area (0.1 μSv / h), and the dose rate rises to 500 μSv / h within 5 seconds.

[0039] Dosimeter response: 1. When the dosimeter detects that the dose change rate ≥ 20%, it triggers the emergency mode (uploading per second); 2. Upload the radiation data packets per second; 3. Give an audible and visual vibration alarm locally to prompt the personnel to evacuate.

[0040] Server response: 1. Receive the high-frequency radiation data packets, aggregate the dose rates according to the location tags, and generate a regional risk map; 2. Automatically push the alarm information to the access control system to block the passage of the leakage area and prevent the spread of radiation.

[0041] Edge computing prediction: When the dosimeter detects that the emergency mode is triggered continuously twice at the same location tag, it is marked as a potential leakage point.

[0042] The present invention changes from "passive response" to "active prediction". Through dynamic strategies and edge computing, it realizes the autonomous perception of dose mutation and leakage prediction, breaking through the traditional lag mode that relies on manual analysis. From "data fragmentation" to "time-space fusion", the real-time binding of location tags and dose data constructs a three-dimensional correlation model of "time - space - dose", solving the limitation that traditional dosimeters only record the cumulative dose. From "high-power consumption rigidity" to "intelligent adaptability", it dynamically adjusts the upload frequency and module power consumption, balances the contradiction between real-time performance and battery life, and the battery life is increased by 6 times.

[0043] As described above, it is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims described above.

Claims

1. A method for data continuous transmission, positioning traceability and power consumption management of a personal dosimeter, characterized in that, It includes the following steps: S1: Match the reader at the entrance of the nuclear power plant control area, activate and load a preset data upload policy; the data upload policy includes a timed upload policy and a dynamic upload policy; S2: Obtain the radiation information on the path during activities in the control area and encapsulate it to obtain a radiation data packet; the radiation data packet includes a timestamp, an incrementing serial number, a dose rate, an accumulated dose, and a location tag; S3: Based on the data upload policy, send the radiation data packet to the server; the radiation data packet is used to trigger the server to generate a two-level ACK response; S4: Receive the two-level ACK response, and based on the two-level ACK response and the signal strength of the dosimeter, determine whether the dosimeter is disconnected; If it is determined to be in a connected state, return to step S3; if it is determined to be disconnected, execute step S5; S5: Based on the data upload policy corresponding to the previous radiation data packet, continue to store the new radiation data packet in the local cache of the dosimeter and mark the incrementing serial number; Until the signal is restored and the latest data-level ACK from the server is received; S6: Compare the serial number in the latest data-level ACK with the serial numbers in the local cache of the dosimeter to filter out the missing radiation data packets; S7: Re-upload the missing radiation data packets to the server in chronological order and clear the cached data that has been uploaded in the dosimeter; And return to step S3; S8: After the operation in the nuclear power plant control area is completed, match the reader at the exit of the nuclear power plant control area and leave the control area.

2. The data continuous transmission, positioning traceability and power consumption management method of the personal dosimeter according to claim 1, characterized in that: The timed upload policy transmits radiation data packets based on a fixed upload period; the dynamic upload policy dynamically adjusts the upload period based on the dose change rate to transmit radiation data packets; the dose change rate is based on the real-time dose detected by the dosimeter and is obtained through a sliding window algorithm.

3. The data continuous transmission, positioning traceability and power consumption management method of the personal dosimeter according to claim 2, characterized in that: The dynamic upload policy includes a stable mode, a warning mode, and an emergency mode; when the dose change rate is less than 5%, the corresponding dynamic upload policy is the stable mode, and in the stable mode, a radiation data packet is uploaded every 60 s, which is the same as the upload period in the timed upload policy; when the dose change rate is greater than or equal to 5% and less than 20%, the corresponding dynamic upload policy is the warning mode, and in the warning mode, a radiation data packet is uploaded every 30 s; when the dose change rate is greater than or equal to 20%, the corresponding dynamic upload policy is the emergency mode, and in the emergency mode, a radiation data packet is uploaded every 1 s.

4. The data continuous transmission, positioning traceability and power consumption management method of the personal dosimeter according to claim 3, characterized in that: The update frequency of the location tag is set based on the data upload policy; if the data upload policy is the timed upload policy or the stable mode in the dynamic upload policy, the location of the dosimeter is updated every 60 seconds; if the data upload policy is the warning mode in the dynamic upload policy, the location of the dosimeter is updated every 30 seconds; if the data upload policy is the emergency mode in the dynamic upload policy, the location of the dosimeter is updated every 1 second; the dosimeter obtains the location tag through WiFi fingerprinting.

5. The method for data continuous transmission, positioning traceability and power consumption management of the personal dosimeter according to claim 4, characterized in that: When the dynamic upload policy is in the emergency mode, the radiation data packet further includes a leakage identifier, which is used to mark the current leakage location; if the same location tag continuously triggers the emergency mode, the dosimeter will mark the location as a potential leakage point as the leakage identifier; the server triggers an emergency response for the corresponding location based on the leakage identifier in the radiation data packet.

6. The data continuous transmission, positioning traceability and power consumption management method of the personal dosimeter according to claim 5, characterized in that: When the dynamic upload policy is in the emergency mode, the dosimeter terminal triggers local audible and visual vibration alarms and an emergency mode wireless broadcast; the emergency mode wireless broadcast is used to send a high-frequency alarm signal to the server, and the high-frequency alarm signal is used to trigger the server to aggregate the dose rate according to the location tag, generate a regional risk map or automatically push alarm information to the access control system to block the passage of the leakage area.

7. The method for data continuous transmission, positioning traceability and power consumption management of the personal dosimeter according to claim 1, wherein: The two-level ACK response includes a data-level ACK and a heartbeat-level ACK. The data-level ACK contains the highest serial number of the radiation data packet received by the server; the heartbeat-level ACK is sent by the server to the dosimeter every 30 s, and the heartbeat-level ACK is used to maintain the monitoring of the long connection state.

8. The method for data continuous transmission, positioning traceability and power consumption management of the personal dosimeter according to claim 7, characterized in that: Based on the two-level ACK response and the signal strength of the dosimeter, the basis for judging whether the dosimeter is disconnected is that the signal strength of the dosimeter is less than the warning threshold and at the same time the two-level ACK times out; the judgment basis for the two-level ACK timeout is that the returned data-level ACK is not received or the heartbeat-level ACK is not received continuously twice.

9. A data resumption, positioning and tracing, and power consumption management system for a personal dosimeter, which is used to implement the data resumption, positioning and tracing, and power consumption management method for the personal dosimeter according to any one of claims 1 to 8, characterized in that: It includes a reader matching module, a data acquisition and encapsulation module, a data transmission module, a disconnection detection module, a data caching module, and a data screening and retransmission module; wherein the reader matching module is used to match the dosimeter with the readers at the entrances and exits of the control area; the data acquisition and encapsulation module is used to collect radiation data in real time and encapsulate it into radiation data packets; the data transmission module is used to transmit the radiation data packets to the server and receive the two-level ACK response returned by the server. The strategies for uploading the radiation data packets include a timing upload strategy and a dynamic upload strategy. The disconnection detection module is used to judge whether the dosimeter is disconnected based on the two-level ACK response and the signal strength of the dosimeter. The data caching module is used to cache the radiation data packets generated when the dosimeter is disconnected. The data screening and retransmission module is used to screen out the missing radiation data packets in the server and retransmit the missing radiation data packets to the server.

10. The data continuous transmission, positioning traceability and power consumption management system of the personal dosimeter according to claim 9, characterized in that: It further includes an emergency response module, which is used to make the dosimeter terminal trigger local audible and visual vibration alarms and an emergency mode wireless broadcast, and trigger the server to aggregate the dose rate according to the location tag, generate a regional risk map or automatically push alarm information to the access control system to block the passage of the leakage area.

Images