Reactor foreign matter monitoring method, device and equipment and storage medium

By using ultra-wideband positioning and image recognition technology to monitor the location of reactor tools, combined with radio frequency identification management tools and personnel identification, the problem of missing maintenance tools in gas-cooled reactors has been solved, and automatic monitoring and safety assurance of foreign objects in the reactor have been achieved.

CN121027984APending Publication Date: 2025-11-28HUANENG NUCLEAR ENERGY TECH RES INST CO LTD
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Patent Information

Application Number
CN202510982444.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-16
Publication Date
2025-11-28

AI Technical Summary

Technical Problem

During the maintenance of gas-cooled reactors, maintenance tools are easily left inside the reactor structure. Existing technology makes it difficult to track the location of these tools, which affects the safety of reactor operation.

Method used

Ultra-wideband positioning technology is used to monitor the location of tools and count the time spent in the reactor. If the time exceeds a preset threshold, the tool is identified as a foreign object and an early warning is issued. Combined with image recognition and radio frequency identification technology, the tool type and personnel identity are managed.

Benefits of technology

It enables automatic monitoring of foreign objects in the reactor, improves the accuracy and efficiency of tool identification, promptly detects tool entrapment locations, reduces the accident rate, and ensures the safe and stable operation of the reactor.

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Abstract

The invention relates to a reactor foreign matter monitoring method, device and equipment and a storage medium. The method comprises the following steps: in response to monitoring that a maintainer carries a target tool to enter a reactor, obtaining a target position of the target tool in the reactor; counting the duration of the target position in the reactor; when the duration is greater than a preset duration threshold value corresponding to the target tool, determining the target tool as a foreign matter, the preset duration threshold value being a preset longest duration for allowing the target tool to enter the reactor; and sending out first early warning information, wherein the first early warning information comprises foreign matters in the reactor and target positions of the foreign matters in the reactor. Therefore, the position of the target tool in the reactor can be tracked, the tool retention condition in the reactor can be found in time, and the specific position of the tool retention can be determined, so that related personnel can clean the retention tool in time, the reactor foreign matter can be automatically monitored, and the reactor foreign matter monitoring efficiency and accuracy are improved. The safe and stable operation of the reactor is powerfully ensured.
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Description

Technical Field

[0001] This disclosure relates to the field of monitoring technology, and in particular to a method, apparatus, equipment and storage medium for monitoring foreign objects in a reactor. Background Technology

[0002] In traditional gas-cooled reactor maintenance procedures, the inventory of maintenance tools relies heavily on paper lists and manual verification. Under prolonged and intensive maintenance work, workers are prone to physical and mental fatigue, making it difficult to maintain concentration. This can lead to tools being left behind within the reactor structure, potentially causing serious problems such as component damage and operational malfunctions during reactor operation, posing a significant threat to the safe and stable operation of the gas-cooled reactor.

[0003] However, current technology makes it difficult to track maintenance tools that enter gas-cooled reactors. Due to the complex internal structure of the reactor core, without tool tracking capabilities, if a tool becomes stuck inside the reactor, maintenance personnel will find it difficult to determine the location of the stuck tool and will spend a lot of time searching for it, which will affect the normal operation of the reactor. Summary of the Invention

[0004] To address the aforementioned technical problems, this disclosure provides a method, apparatus, equipment, and storage medium for monitoring foreign objects in a reactor.

[0005] The first aspect of this disclosure provides a method for detecting foreign objects in a reactor, comprising:

[0006] In response to the detection that maintenance personnel are carrying target tools into the reactor, the target location of the target tools in the reactor is obtained;

[0007] The duration for which the target location remained inside the reactor;

[0008] When the duration exceeds the preset duration threshold corresponding to the target tool, the target tool is identified as a foreign object. The preset duration threshold is the preset maximum duration during which the target tool is allowed to enter the reactor.

[0009] The first warning message is issued, which includes the presence of foreign objects in the reactor and the target location of the foreign objects in the reactor.

[0010] A second aspect of this disclosure provides a reactor foreign object monitoring device, comprising:

[0011] The location acquisition module is used to acquire the target location of the target tool in the reactor in response to the detection that maintenance personnel are carrying the target tool into the reactor.

[0012] The statistics module is used to count the duration the target location is inside the reactor.

[0013] The first foreign object determination module is used to determine the target tool as a foreign object when the duration exceeds the preset duration threshold corresponding to the target tool. The preset duration threshold is the preset maximum duration during which the target tool is allowed to enter the reactor.

[0014] The first early warning module is used to issue the first early warning information, which includes the presence of foreign objects in the reactor and the target location of the foreign objects in the reactor.

[0015] A third aspect of this disclosure provides a computer device including a memory and a processor, wherein the memory stores a computer program that, when executed by the processor, can implement the reactor foreign object monitoring method of the first aspect described above.

[0016] The fourth aspect of this disclosure provides a computer-readable storage medium storing a computer program that, when executed by a processor, can implement the reactor foreign object monitoring method of the first aspect described above.

[0017] The technical solution provided in this disclosure has the following advantages compared with the prior art:

[0018] This disclosure responds to the detection that maintenance personnel are carrying a target tool into the reactor, obtains the target location of the target tool in the reactor; counts the duration the target location is inside the reactor; when the duration exceeds a preset duration threshold corresponding to the target tool, the target tool is identified as a foreign object, the preset duration threshold being a preset maximum duration allowed for the target tool to enter the reactor; and issues a first warning message, the first warning message including the presence of a foreign object in the reactor and the target location of the foreign object in the reactor. This disclosure allows for the monitoring of the location and duration of foreign objects (FOOs) after maintenance personnel bring a target tool into the reactor. If the duration exceeds a preset threshold, the tool is identified as a FEO and an alert is issued, informing relevant personnel of its location. This enables the tracking of FEOs within the reactor, timely detection of tool entrapment, and determination of its specific location. The ability to quickly and accurately locate entrapped tools allows for timely removal, significantly reducing search time and lowering the rate of FEO entrapment accidents. This automated monitoring of FEOs in the reactor improves efficiency and accuracy, effectively ensuring the safe and stable operation of the reactor. Attached Figure Description

[0019] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0020] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a flowchart of a reactor foreign object monitoring method provided in an embodiment of this disclosure;

[0022] Figure 2 This is a flowchart of another reactor foreign object monitoring method provided in this disclosure embodiment;

[0023] Figure 3 This is a flowchart of another reactor foreign object monitoring method provided in the embodiments of this disclosure;

[0024] Figure 4 This is a flowchart of another reactor foreign object monitoring method provided in the embodiments of this disclosure;

[0025] Figure 5 This is a flowchart of another reactor foreign object monitoring method provided in the embodiments of this disclosure;

[0026] Figure 6 This is a schematic diagram of the structure of a reactor foreign object monitoring device provided in an embodiment of this disclosure;

[0027] Figure 7 This is a schematic diagram of the structure of a computer device provided in an embodiment of this disclosure. Detailed Implementation

[0028] To better understand the above-mentioned objectives, features, and advantages of this disclosure, the solutions disclosed herein will be further described below. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0029] Numerous specific details are set forth in the following description in order to provide a full understanding of this disclosure, but this disclosure may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some, and not all, of the embodiments of this disclosure.

[0030] It should be understood that the steps described in the method embodiments of this disclosure may be performed in different orders and / or in parallel. Furthermore, the method embodiments may include additional steps and / or omit the steps shown. The scope of this disclosure is not limited in this respect.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0032] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0033] The reactor foreign object monitoring method provided in this disclosure can be executed by a computer device. This device can be understood as any device with processing and computing capabilities. This device may include, but is not limited to, mobile terminals such as smartphones, laptops, personal digital assistants (PDAs), tablet computers (PADs), and wearable devices, as well as fixed electronic devices such as digital TVs and desktop computers.

[0034] To better understand the inventive concept of the embodiments of this disclosure, the technical solutions of the embodiments of this disclosure will be described below in conjunction with exemplary embodiments.

[0035] Figure 1 This is a flowchart of a reactor foreign object monitoring method provided in an embodiment of this disclosure. This method can be executed by a computer device, which can be understood as any device with computing functions and processing capabilities. Figure 1 As shown, the reactor foreign object monitoring method provided in this embodiment includes the following steps:

[0036] Step 110: In response to the detection that maintenance personnel are carrying the target tool into the reactor, obtain the target location of the target tool in the reactor.

[0037] In this embodiment of the disclosure, the reactor may be a gas-cooled reactor. The target tool may include maintenance tools.

[0038] Computer equipment can monitor whether maintenance personnel are carrying target tools into the reactor. When maintenance personnel are detected carrying target tools into the reactor, the target location of the target tools in the reactor can be obtained.

[0039] In some embodiments, the target tool is equipped with an Ultra Wide Band (UWB) tag, which is used to transmit and receive wireless signals. Computer equipment can locate the target tool based on UWB positioning technology. UWB positioning technology achieves centimeter-level spatial positioning accuracy by measuring the propagation time or time difference of wireless signals between devices. UWB positioning technology features high precision and strong anti-interference capabilities.

[0040] Specifically, the computer equipment can obtain the transmission time of the ultra-wideband tag on the target tool, the reception time of the ultra-wideband base station receiving the wireless signal, and the location of the ultra-wideband base station; based on the time difference between the reception time and the transmission time of the wireless signal and the location of the ultra-wideband base station, the location of the ultra-wideband tag is determined; and the location of the ultra-wideband tag is determined as the target location of the target tool to which the ultra-wideband tag belongs in the reactor.

[0041] For example, the product of the time difference and the speed of light is calculated to obtain the target distance between the ultra-wideband tag and the ultra-wideband base station. Based on the target distance and the location of the ultra-wideband base station, the location of the ultra-wideband tag is determined, and the location of the ultra-wideband tag is determined as the target location of the target tool to which the ultra-wideband tag belongs in the reactor.

[0042] Step 120: Calculate the duration the target location is inside the reactor.

[0043] In this embodiment of the disclosure, after obtaining the target location of the target tool in the reactor, the computer device can count the duration of the target location inside the reactor, that is, the duration of the target tool entering the reactor.

[0044] For example, the target time when the target tool enters the reactor can be obtained, and the time difference between the current time and the target time can be determined as the duration for which the target location is inside the reactor.

[0045] For example, timing can begin when the target tool enters the reactor, and the duration of the target's position inside the reactor can be recorded.

[0046] Step 130: When the duration of the target location inside the reactor exceeds the preset duration threshold corresponding to the target tool, the target tool is identified as a foreign object. The preset duration threshold is the preset maximum duration during which the target tool is allowed to enter the reactor.

[0047] In this embodiment of the disclosure, when the duration of the target location being inside the reactor exceeds a preset duration threshold corresponding to the target tool, it indicates that the duration of the target tool's entry into the reactor exceeds the preset duration threshold corresponding to the target tool, and the target tool is considered a tool remaining in the reactor. The computer equipment can then identify the target tool as a foreign object. A foreign object can be understood as a tool remaining in the reactor.

[0048] The preset duration threshold can be understood as the preset maximum duration for which the target tool is allowed to enter the reactor. It can be set as needed, such as 15 minutes, but there is no limit here.

[0049] Step 140: Issue the first warning message, which includes the presence of foreign objects in the reactor and the target location of the foreign objects in the reactor.

[0050] In this embodiment of the disclosure, after the target tool is identified as a foreign object, the computer device can generate and issue a first warning message. The first warning message may include the presence of a foreign object in the reactor and the target location of the foreign object in the reactor, so as to remind the staff to find the foreign object in the reactor in time and clean it up.

[0051] Therefore, this disclosure allows maintenance personnel to monitor the location of target tools after they enter the reactor, and to track the duration of the tool's stay in the reactor. If the duration exceeds a preset threshold, the tool is identified as a foreign object and an alert is issued, informing relevant personnel of its location. This enables the tracking of the target tool's position within the reactor, timely detection of tool retention, and determination of its specific location. It allows for the rapid and accurate locating of retained tools, facilitating timely removal and significantly reducing the time required to find them. This lowers the accident rate of foreign object retention in the reactor, achieves automatic monitoring of reactor foreign objects, improves the efficiency and accuracy of reactor foreign object monitoring, and effectively ensures the safe and stable operation of the reactor.

[0052] In some embodiments of this disclosure, the computer equipment may execute the above-mentioned response to detecting maintenance personnel carrying target tools into the reactor and obtaining the target location of the target tools in the reactor before the computer equipment executes the following: Figure 2 A flowchart of a reactor foreign object monitoring method is provided, such as Figure 2 As shown, the reactor foreign object monitoring method provided in this embodiment includes the following steps:

[0053] Step 210: When the maintenance personnel arrive at the reactor entrance, acquire the target image of the maintenance personnel.

[0054] In this embodiment of the disclosure, a high-definition camera (resolution ≥ 1080p) can be deployed in the reactor maintenance passage. When maintenance personnel arrive at the reactor entrance, the computer equipment can acquire the target image of the maintenance personnel through the camera.

[0055] Step 220: Perform image recognition on the target image to determine the types of objects contained in the target image.

[0056] In this embodiment of the disclosure, the computer device can perform image recognition on the target image to determine the type of object contained in the target image.

[0057] For example, a pre-trained image recognition model can be used to perform image recognition on a target image to determine the type of object contained in the target image.

[0058] Step 230: If a preset tool type exists in the object type, determine that the maintenance personnel are carrying the target tool.

[0059] In this embodiment of the disclosure, when a preset tool type exists among the object types contained in the target image, it can be determined that the maintenance personnel are carrying the target tool.

[0060] The preset tool types can be set as needed; there are no restrictions here.

[0061] Therefore, image recognition technology can accurately identify whether maintenance personnel are carrying tools, thus improving the convenience of tool identification.

[0062] Step 240: Extract the image of the target tool corresponding to the preset tool type from the target image.

[0063] Step 250: Perform image recognition on the image of the target tool to determine the tool type of the target tool.

[0064] In this embodiment of the disclosure, the computer device can perform image recognition on the image of the target tool to determine the tool type of the target tool.

[0065] For example, an image recognition model can be used to identify the target tool's image and determine its tool type.

[0066] Step 260: When the tool type of the target tool belongs to the preset access tool type, maintenance personnel are allowed to bring the target tool into the reactor.

[0067] Step 270: If the tool type of the target tool does not belong to the preset access tool type, maintenance personnel are prohibited from bringing the target tool into the reactor.

[0068] Preset access tool types can be understood as pre-defined tool types that are allowed to enter the reactor. They can be set as needed, and there are no restrictions here.

[0069] Therefore, the tool type of the target tool can be identified before maintenance personnel bring it into the reactor. Only when the tool type of the target tool belongs to the preset access tool type will the target tool be allowed to enter the reactor. This realizes the pre-monitoring of reactor maintenance tools, reduces the probability of prohibited tools entering the reactor, and effectively ensures the safe and stable operation of the reactor.

[0070] In some embodiments of this disclosure, the target tool is provided with a radio frequency identification (RFID) tag, which may include attribute data of the target tool and identification data of the maintenance personnel carrying the target tool.

[0071] The attribute data of a tool can include basic information about the tool, such as tool name, tool model, and tool specifications.

[0072] The identification data of maintenance personnel can be understood as data that can uniquely identify the identity information of maintenance personnel.

[0073] in, Figure 3 This is a flowchart of a reactor foreign object monitoring method provided in an embodiment of this disclosure. This method can be executed by a computer device, which can be understood as any device with computing functions and processing capabilities. Figure 3 As shown, the reactor foreign object monitoring method provided in this embodiment includes the following steps:

[0074] Step 310: Obtain the attribute data of the target tool and the identification data of the maintenance personnel carrying the target tool.

[0075] Step 320: Write the attribute data of the target tool and the identification data of the maintenance personnel carrying the target tool into the radio frequency identification tag on the target tool.

[0076] Step 330: In response to the detection that maintenance personnel are carrying the target tool into the reactor, obtain the target location of the target tool in the reactor.

[0077] In some embodiments, in response to detecting that maintenance personnel are carrying a target tool into the reactor, the computer equipment can read and write the radio frequency identification tag on the target tool to obtain the attribute data of the target tool and the identification data of the maintenance personnel carrying the target tool.

[0078] In some embodiments, in response to detecting that maintenance personnel are carrying a target tool away from the reactor, the computer equipment can read and write the radio frequency identification tag on the target tool to obtain the attribute data of the target tool and the identification data of the maintenance personnel carrying the target tool.

[0079] This allows for the timely identification of target tools entering the reactor and the corresponding maintenance personnel, facilitating the management of tool and personnel access within the reactor.

[0080] Step 340: Calculate the duration the target location is inside the reactor.

[0081] Step 350: When the duration exceeds the preset duration threshold corresponding to the target tool, the target tool is identified as a foreign object. The preset duration threshold is the preset maximum duration during which the target tool is allowed to enter the reactor.

[0082] Step 360: Read and write the RFID tag on the target tool to obtain the attribute data of the target tool and the identification data of the maintenance personnel corresponding to the target tool.

[0083] Step 370: Issue a second warning message. The second warning message includes the presence of a foreign object in the reactor, the target location of the foreign object in the reactor, the attribute data of the target tool corresponding to the foreign object, and the identification data of the maintenance personnel corresponding to the target tool.

[0084] Therefore, throughout the entire process of tool warehousing, issuance, use, and return, relevant information can be quickly and accurately obtained through reading and writing the RFID tags on the tools. This facilitates the daily management of the tools and makes it easier to trace the usage trajectory of the tools and identify the responsible person (the maintenance personnel who used the tools). It also provides relevant personnel with detailed and accurate information on foreign objects, making it easier for them to quickly and accurately locate foreign objects in the reactor, facilitating the traceability of foreign objects, and improving the accuracy and comprehensiveness of foreign object monitoring in the reactor.

[0085] In some embodiments of this disclosure, Figure 4 This is a flowchart of a reactor foreign object monitoring method provided in an embodiment of this disclosure. This method can be executed by a computer device, which can be understood as any device with computing functions and processing capabilities. Figure 4 As shown, the reactor foreign object monitoring method provided in this embodiment includes the following steps:

[0086] Step 410: In response to the detection that maintenance personnel are carrying the target tool into the reactor, obtain the target location of the target tool in the reactor.

[0087] Step 420: Based on the target location of the target tool in the reactor and the location of the target equipment in the reactor, determine the first distance between the target tool and the target equipment.

[0088] Step 430: Based on the target location of the target tool in the reactor and the boundary of the preset hazardous area of ​​the reactor, determine the second distance between the target tool and the boundary of the preset hazardous area.

[0089] The computer equipment stores the locations of target equipment in the reactor and the boundaries of the reactor's pre-defined hazardous areas.

[0090] The target equipment can be understood as important or dangerous equipment in the reactor.

[0091] Preset danger zones can be set as needed; there are no restrictions here.

[0092] Step 440: Sum the first distance and the second distance to obtain the target distance.

[0093] Step 450: Based on the target distance, determine the risk level of the target tool. The risk level is negatively correlated with the target distance.

[0094] The greater the distance to the target, the lower the risk level of the target tool; the smaller the distance to the target, the higher the risk level of the target tool.

[0095] Step 460: When the risk level is greater than the preset level, the target tool is identified as a foreign object.

[0096] The preset level can be understood as the highest level of risk that the tool is allowed to reach, which is pre-set and can be set as needed. There are no restrictions here.

[0097] Step 470: Issue the third warning information, which includes the presence of foreign objects in the reactor, the target location of the foreign objects in the reactor, and the risk level of the target tool being greater than the preset level.

[0098] Therefore, by monitoring the target location of the target tool in the reactor, the risk level of the target tool can be determined. When the risk level of the target tool is greater than the preset level, the target tool is identified as a foreign object, potential risks can be detected in a timely manner, and relevant personnel can be informed of the foreign object information in a timely manner so that relevant personnel can take measures to eliminate the risk quickly. This improves the efficiency, accuracy and comprehensiveness of reactor foreign object monitoring and effectively ensures the safe and stable operation of the reactor.

[0099] In some embodiments, the computer device can also display the risk level of the target tool. For example, the risk level of the target tool can be displayed through augmented reality (AR) glasses or a display screen. This allows relevant personnel to quickly and intuitively understand the risk level of tools in the reactor and promptly identify potential risks.

[0100] In some embodiments of this disclosure, Figure 5 This is a flowchart of a reactor foreign object monitoring method provided in an embodiment of this disclosure. This method can be executed by a computer device, which can be understood as any device with computing functions and processing capabilities. Figure 5 As shown, the reactor foreign object monitoring method provided in this embodiment includes the following steps:

[0101] Step 510: In response to the detection that maintenance personnel are carrying the target tool into the reactor, obtain the target location of the target tool in the reactor.

[0102] Step 520: Determine the trajectory of the target tool based on its target position in the reactor.

[0103] Step 530: When the movement trajectory of the target tool deviates from the preset path of the target tool, determine that the movement trajectory of the target tool is abnormal and identify the target tool as a foreign object.

[0104] Step 540: Issue a fourth warning message. The fourth warning message may include the presence of a foreign object in the reactor, the target location of the foreign object in the reactor, and the abnormal movement trajectory of the target tool.

[0105] The preset path to the target location can be set in advance as needed, and there are no restrictions here.

[0106] This allows for monitoring of the tool's movement trajectory, enabling early detection of potential abnormal movements and timely alerting of relevant personnel. It also helps identify potential risks, allowing for swift action to eliminate them. This improves the efficiency, accuracy, and comprehensiveness of reactor foreign object monitoring, effectively ensuring the safe and stable operation of the reactor.

[0107] In some embodiments, after obtaining the target location of the target tool in the reactor, the computer device can determine whether the target tool is within a preset danger zone of the reactor based on the target location of the target tool in the reactor; if the target tool is within the preset danger zone of the reactor, the target tool is identified as a foreign object; and a fifth warning message is issued, which may include the presence of a foreign object in the reactor, the target location of the foreign object in the reactor, and the target tool being within the preset danger zone of the reactor.

[0108] The reactor interior is divided into a pre-defined safe zone and a pre-defined hazardous zone. These zones can be set as needed and are not limited here.

[0109] Therefore, when tools are located within the pre-defined hazardous area of ​​the reactor, timely warnings can be issued to identify potential risks, enabling relevant personnel to take swift measures to eliminate these risks. This improves the efficiency, accuracy, and comprehensiveness of reactor foreign object monitoring, effectively ensuring the safe and stable operation of the reactor.

[0110] In some embodiments, after obtaining the target location of the target tool in the reactor, the computer device can construct a distribution heat map of the target tool in the reactor based on the target location of the target tool in the reactor, wherein the vividness of the display color of the target tool in the distribution heat map is positively correlated with the density of the distribution of the target tool; and display the distribution heat map.

[0111] The denser the distribution of target tools, the more vibrant the displayed colors of the target tools.

[0112] For example, a heat map showing the distribution of target tools within the reactor can be displayed using AR glasses or a screen. This allows relevant personnel to quickly and intuitively understand the on-site distribution of tools within the reactor and promptly identify potential risks.

[0113] Figure 6 This is a schematic diagram of a reactor foreign object monitoring device provided in an embodiment of this disclosure. This device can be understood as the aforementioned computer equipment or a functional module within the aforementioned computer equipment. Figure 6 As shown, the reactor foreign object monitoring device 600 includes:

[0114] The location acquisition module 610 is used to acquire the target location of the target tool in the reactor in response to the detection that maintenance personnel are carrying a target tool into the reactor.

[0115] The statistics module 620 is used to count the duration that the target location is inside the reactor.

[0116] The first foreign object determination module 630 is used to determine the target tool as a foreign object when the duration is greater than the preset duration threshold corresponding to the target tool. The preset duration threshold is the preset maximum duration during which the target tool is allowed to enter the reactor.

[0117] The first early warning module 640 is used to issue a first early warning message, which includes the presence of a foreign object in the reactor and the target location of the foreign object in the reactor.

[0118] Optionally, the aforementioned reactor foreign object monitoring device includes:

[0119] The image acquisition module is used to acquire target images of maintenance personnel when they arrive at the reactor entrance.

[0120] The first recognition module is used to perform image recognition on the target image and determine the type of object contained in the target image;

[0121] The tool determination module is used to determine whether the maintenance personnel are carrying the target tool when a preset tool type exists in the object type.

[0122] Optionally, the aforementioned reactor foreign object monitoring device includes:

[0123] The extraction module is used to extract images of target tools corresponding to preset tool types from the target image;

[0124] The second recognition module is used to perform image recognition on the image of the target tool to determine the tool type of the target tool.

[0125] The permission module is used to allow maintenance personnel to bring the target tool into the reactor when the tool type belongs to a preset access tool type;

[0126] The prohibition module is used to prevent maintenance personnel from bringing the target tool into the reactor when the tool type does not belong to the preset access tool type.

[0127] Optionally, the aforementioned target tool is equipped with an ultra-wideband tag, which is used to transmit and receive wireless signals;

[0128] The location acquisition module includes:

[0129] The acquisition submodule is used to acquire the transmission time of the UWB tag transmitting wireless signals on the target tool, the reception time of the UWB base station receiving the wireless signals, and the location of the UWB base station.

[0130] The first determining submodule is used to determine the location of the ultra-wideband tag based on the time difference between the receiving time and the transmitting time and the location of the ultra-wideband base station;

[0131] The second determination submodule is used to determine the location of the ultrawideband tag as the target location of the target tool to which the ultrawideband tag belongs in the reactor.

[0132] Optionally, the target tool is equipped with an RFID tag, which includes the target tool's attribute data and the identification data of the maintenance personnel carrying the target tool.

[0133] The aforementioned reactor foreign object monitoring device includes:

[0134] The first read / write module is used to read and write the radio frequency identification tag on the target tool after the target tool is identified as a foreign object, so as to obtain the attribute data of the target tool and the identification data of the maintenance personnel corresponding to the target tool.

[0135] The second early warning module is used to issue a second early warning message, which includes the presence of a foreign object in the reactor, the target location of the foreign object in the reactor, the attribute data of the target tool corresponding to the foreign object, and the identification data of the maintenance personnel corresponding to the target tool.

[0136] Optionally, the aforementioned reactor foreign object monitoring device includes:

[0137] The first distance determination module is used to determine the first distance between the target tool and the target device based on the target location of the target tool in the reactor and the location of the target device in the reactor.

[0138] The second distance determination module is used to determine the second distance between the target tool and the boundary of the preset hazardous area based on the target position of the target tool in the reactor and the boundary of the preset hazardous area of ​​the reactor.

[0139] The summation module is used to sum the first distance and the second distance to obtain the target distance;

[0140] The risk level determination module is used to determine the risk level of the target tool based on the target distance. The risk level is negatively correlated with the target distance.

[0141] The second foreign object identification module is used to identify the target tool as a foreign object when the risk level is greater than the preset level;

[0142] The third early warning module is used to issue third early warning information, which includes the presence of foreign objects in the reactor, the target location of the foreign objects in the reactor, and the risk level of the target tool being greater than the preset level.

[0143] Optionally, the aforementioned reactor foreign object monitoring device includes:

[0144] The trajectory determination module is used to determine the motion trajectory of the target tool based on its target position in the reactor.

[0145] The third foreign object detection module is used to determine that the target tool's motion trajectory is abnormal when the target tool's motion trajectory deviates from the target tool's preset path, and to identify the target tool as a foreign object.

[0146] The fourth warning module is used to issue a fourth warning message, which may include the presence of foreign objects in the reactor, the target location of the foreign object in the reactor, and abnormal movement trajectory of the target tool.

[0147] The reactor foreign object monitoring device provided in this disclosure can implement the method of any of the above embodiments, and its execution mode and beneficial effects are similar, so they will not be described again here.

[0148] This disclosure also provides a computer device, which includes a processor and a memory, wherein the memory stores a computer program. When the computer program is executed by the processor, it can implement the methods of any of the above embodiments. The execution method and beneficial effects are similar, and will not be described again here.

[0149] The computer device in this disclosure can be understood as any device with processing and computing capabilities. This device may include, but is not limited to, mobile terminals such as smartphones, laptops, personal digital assistants (PDAs), tablet computers (PADs), and wearable devices, as well as fixed electronic devices such as digital TVs and desktop computers.

[0150] Figure 7 This is a schematic diagram of the structure of a computer device provided in an embodiment of this disclosure, such as... Figure 7 As shown, the computer device 700 may include a processor 710 and a memory 720. The memory 720 stores a computer program 721. When the computer program 721 is executed by the processor 710, it can implement the method provided in any of the above embodiments. The execution method and beneficial effects are similar and will not be described again here.

[0151] Of course, for the sake of simplicity, Figure 7 Only some of the components of the computer device 700 relevant to the present invention are shown in this illustration; components such as buses, input / output interfaces, input devices, and output devices are omitted. In addition, the computer device 700 may include any other suitable components depending on the specific application.

[0152] This disclosure provides a computer-readable storage medium storing a computer program. When the computer program is executed by a processor, it can implement the methods of any of the above embodiments. The execution method and beneficial effects are similar, and will not be described again here.

[0153] The aforementioned computer-readable storage medium may be any combination of one or more readable media. A readable medium may be a readable signal medium or a readable storage medium. A readable storage medium may, for example, include, but is not limited to, electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatuses, or devices, or any combination thereof. More specific examples of readable storage media (a non-exhaustive list) include: electrical connections having one or more wires, portable disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fibers, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof.

[0154] The computer program described above can be written in any combination of one or more programming languages ​​to perform the operations of the embodiments of this disclosure. The programming languages ​​include object-oriented programming languages ​​such as Java and C++, as well as conventional procedural programming languages ​​such as C or similar languages. The program code can be executed entirely on the user's computer device, partially on the user's device, as a standalone software package, partially on the user's computer device and partially on a remote computer device, or entirely on a remote computer device or server.

[0155] The above description is merely a preferred embodiment of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features disclosed in this disclosure that have similar functions.

[0156] Furthermore, while the operations are described in a specific order, this should not be construed as requiring these operations to be performed in the specific order shown or in a sequential order. In certain environments, multitasking and parallel processing may be advantageous. Similarly, while several specific implementation details are included in the above discussion, these should not be construed as limiting the scope of this disclosure. Certain features described in the context of individual embodiments may also be implemented in combination in a single embodiment. Conversely, various features described in the context of a single embodiment may also be implemented individually or in any suitable sub-combination in multiple embodiments.

[0157] The above description is merely a specific embodiment of this disclosure, enabling those skilled in the art to understand or implement it. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this disclosure. Therefore, this disclosure is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for detecting foreign objects in a reactor, characterized in that, include: In response to the detection that maintenance personnel are carrying a target tool into the reactor, the target location of the target tool in the reactor is obtained; The duration for which the target location is located inside the reactor is recorded; When the duration exceeds a preset duration threshold corresponding to the target tool, the target tool is identified as a foreign object. The preset duration threshold is a preset maximum duration during which the target tool is allowed to enter the reactor. A first warning message is issued, which includes the presence of a foreign object in the reactor and the target location of the foreign object in the reactor.

2. The method according to claim 1, characterized in that, Before detecting that maintenance personnel are carrying a target tool into the reactor and obtaining the target location of the target tool in the reactor, the method further includes: When maintenance personnel arrive at the reactor entrance, acquire a target image of the maintenance personnel; The target image is subjected to image recognition to determine the type of object contained in the target image; If a preset tool type exists among the object types, it is determined that the maintenance personnel are carrying the target tool.

3. The method according to claim 2, characterized in that, After determining that the maintenance personnel are carrying the target tool, the method further includes: Extract the image of the target tool corresponding to the preset tool type from the target image; Image recognition is performed on the image of the target tool to determine the tool type of the target tool; When the tool type belongs to a preset access tool type, the maintenance personnel are allowed to bring the target tool into the reactor. When the tool type is not a preset access tool type, the maintenance personnel are prohibited from bringing the target tool into the reactor.

4. The method according to claim 1, characterized in that, The target tool is equipped with an ultra-wideband tag, which is used to transmit and receive wireless signals. The step of obtaining the target location of the target tool in the reactor includes: The transmission time of the ultra-wideband tag on the target tool transmitting the wireless signal, the reception time of the ultra-wideband base station receiving the wireless signal, and the location of the ultra-wideband base station are obtained. The location of the ultra-wideband tag is determined based on the time difference between the reception time and the transmission time and the location of the ultra-wideband base station; The location of the ultrawideband tag is determined as the target location of the target tool to which the ultrawideband tag belongs in the reactor.

5. The method according to claim 1, characterized in that, The target tool is equipped with an RFID tag, which includes attribute data of the target tool and identification data of the maintenance personnel carrying the target tool. After identifying the target tool as a foreign object, the method further includes: The radio frequency identification tag on the target tool is read and written to obtain the attribute data of the target tool and the identification data of the maintenance personnel corresponding to the target tool; A second warning message is issued, which includes the presence of a foreign object in the reactor, the target location of the foreign object in the reactor, the attribute data of the target tool corresponding to the foreign object, and the identification data of the maintenance personnel corresponding to the target tool.

6. The method according to claim 1, characterized in that, After obtaining the target location of the target tool in the reactor, the method further includes: Based on the target location of the target tool in the reactor and the location of the target device in the reactor, a first distance between the target tool and the target device is determined; Based on the target location of the target tool in the reactor and the boundary of the preset hazardous area of ​​the reactor, a second distance between the target tool and the boundary of the preset hazardous area is determined; The target distance is obtained by summing the first distance and the second distance; Based on the target distance, the risk level of the target tool is determined, and the risk level is negatively correlated with the target distance; When the risk level is greater than a preset level, the target tool is identified as a foreign object; A third warning message is issued, which includes the presence of a foreign object in the reactor, the target location of the foreign object in the reactor, and the risk level of the target tool being greater than the preset level.

7. The method according to claim 1, characterized in that, After obtaining the target location of the target tool in the reactor, the method further includes: Based on the target position of the target tool in the reactor, determine the trajectory of the target tool; When the trajectory of the target tool deviates from the preset path of the target tool, the trajectory of the target tool is determined to be abnormal, and the target tool is identified as a foreign object; A fourth warning message is issued, which may include the presence of a foreign object in the reactor, the target location of the foreign object in the reactor, and the abnormal movement trajectory of the target tool.

8. A reactor foreign object monitoring device, characterized in that, include: The location acquisition module is used to acquire the target location of the target tool in the reactor in response to the detection that maintenance personnel are carrying a target tool into the reactor. The statistics module is used to count the duration for which the target location is inside the reactor. The first foreign object determination module is used to determine the target tool as a foreign object when the duration is greater than a preset duration threshold corresponding to the target tool, wherein the preset duration threshold is a preset maximum duration during which the target tool is allowed to enter the reactor; The first early warning module is used to issue a first early warning message, which includes the presence of a foreign object in the reactor and the target location of the foreign object in the reactor.

9. A computer device, characterized in that, include: A memory and a processor, wherein the memory stores a computer program that, when executed by the processor, implements the reactor foreign object monitoring method as described in any one of claims 1-7.

10. A computer-readable storage medium, characterized in that, The storage medium stores a computer program, which, when executed by a processor, implements the reactor foreign object monitoring method as described in any one of claims 1-7.