Gas storage cylinder and monitoring method and management system thereof
By using electronic tags and reader technology on hydrogen storage cylinders, automated identification and information management are realized, and the problems of inconvenience and insecurity in the existing technology are solved, management efficiency and data accuracy are improved, and the Safe operation of gas storage cylinders.
Patent Information
- Application Number
- CN202411696216.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-25
- Publication Date
- 2025-01-07
AI Technical Summary
The management of existing automotive hydrogen storage cylinders relies on surface QR code identification, lacking effective automation and information management, making it difficult to achieve efficient safety supervision and information traceability.
Using electronic tag technology, a variety of information about the gas storage cylinder is obtained through readers and writers, and early warning prompts are sent when the information exceeds the range of safety conditions, and a management system is established to achieve automated identification and information management, enhancing data security and accuracy.
Through electronic tag technology, the automated identification and information management of gas storage cylinders are realized, management efficiency is improved, data security and accuracy are enhanced, and the safe operation and information traceability of gas storage cylinders are ensured.
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Figure CN119267790A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of terminal technology, and in particular to a gas storage cylinder and a monitoring method and management system thereof. Background Art
[0002] As hydrogen energy storage is increasingly used in the automotive field, the safety supervision and information traceability of automotive hydrogen storage cylinders have become crucial. At present, automotive hydrogen storage cylinders are usually marked by QR codes on the surface, which is not conducive to the management of automotive hydrogen storage cylinders. Summary of the invention
[0003] The present application provides a gas storage cylinder and a monitoring method and management system thereof to address deficiencies in the related art.
[0004] According to a first aspect of an embodiment of the present disclosure, a gas cylinder monitoring method is provided, which is applied to a server. The monitoring method includes:
[0005] Obtain various gas cylinder information stored in the electronic tags integrated in the gas cylinders through the reader / writer;
[0006] When one or more of the gas cylinder information exceeds the safety condition range, obtaining high-risk gas storage cylinders corresponding to the gas cylinder information exceeding the safety condition range;
[0007] Send an early warning reminder about the high-risk gas cylinder to the target device.
[0008] Optional, including:
[0009] Obtaining updated information of one or more gas cylinder information by the reader;
[0010] The updated information replaces the original gas cylinder information, or the updated information is added.
[0011] Optionally, the gas cylinder information includes gas cylinder pressure;
[0012] When one or more of the gas cylinder information exceeds the safety condition range, obtaining the high-risk gas storage cylinder corresponding to the gas cylinder information exceeding the safety condition range includes:
[0013] Compare cylinder pressure to safe pressure conditions;
[0014] When the gas cylinder pressure is outside the safety pressure condition, a corresponding high-risk gas cylinder is obtained.
[0015] Optionally, the gas cylinder information includes an inspection date;
[0016] When one or more of the gas cylinder information exceeds the safety condition range, obtaining the high-risk gas storage cylinder corresponding to the gas cylinder information exceeding the safety condition range includes:
[0017] Get the interval between the current date and the inspection date;
[0018] When the interval time exceeds the inspection period condition, the corresponding high-risk gas cylinder is obtained.
[0019] Optionally, also include:
[0020] Gas cylinders with the same inspection date are grouped into the same inspection cylinder category;
[0021] When the interval time exceeds the inspection period condition, all gas cylinders of the same inspection cylinder category are determined as high-risk gas cylinders.
[0022] According to a second aspect of an embodiment of the present disclosure, a gas cylinder management system is provided, comprising:
[0023] A plurality of gas cylinders, each of which is provided with an electronic tag, wherein the electronic tag stores the gas cylinder information of the gas cylinder;
[0024] At least one reader / writer, each of which is used to read and / or write the gas cylinder information of the electronic tag;
[0025] An information management system is communicatively connected with each of the reader / writers, and is used to obtain information of multiple gas cylinders stored in electronic tags integrated in gas cylinders through the reader / writers; when one or more of the gas cylinder information exceeds the safety condition range, obtain high-risk gas cylinders corresponding to the gas cylinder information exceeding the safety condition range; and send early warning prompts about the high-risk gas cylinders to the target device to obtain the information read by the reader / writer.
[0026] Optionally, the gas cylinder information stored in the electronic tag is encrypted gas cylinder information;
[0027] The management system includes multiple readers and writers, which are divided into first category readers and writers and second category readers and writers, wherein the first category readers and writers are configured with first level keys for reading and writing the gas cylinder information of the electronic tags, and the second category readers and writers are configured with second level keys for reading the gas cylinder information of the electronic tags.
[0028] According to a third aspect of an embodiment of the present application, a gas storage cylinder is provided, comprising:
[0029] Gas cylinder body;
[0030] An electronic tag is fixedly arranged in the gas cylinder body, and the electronic tag comprises an antenna and a communication chip electrically connected to the antenna, and the communication chip stores the gas cylinder information of the gas storage cylinder.
[0031] Optionally, the gas cylinder body comprises an inner liner, a carbon fiber winding layer and a glass fiber winding layer, the carbon fiber winding layer is wound around the inner liner, and the glass fiber winding layer is wound around the carbon fiber winding layer;
[0032] The electronic tag is arranged between the carbon fiber winding layer and the glass fiber winding layer; or, the electronic tag is embedded in the glass fiber winding layer.
[0033] Optionally, the gas cylinder body is provided with a plug, the plug is provided with a hollow groove or a groove, and the electronic tag is fixedly arranged in the hollow groove or the groove.
[0034] The technical solution provided by the embodiments of the present application may have the following beneficial effects:
[0035] It can be seen from the above embodiments that the present application realizes automatic identification and information management of gas cylinders by setting electronic tags on the gas cylinder body through electronic tag technology, thereby improving the management efficiency of gas cylinders and enhancing data security and data accuracy.
[0036] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS
[0037] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.
[0038] Figure 1 It is a partial cross-sectional schematic diagram of a gas storage cylinder according to an exemplary embodiment.
[0039] Figure 2 is another partial cross-sectional schematic diagram of a gas storage cylinder according to an exemplary embodiment.
[0040] Figure 3 The present invention is a flow chart of a method for monitoring a gas cylinder according to an exemplary embodiment.
[0041] Figure 4 The present invention is a diagram showing an architecture of a management system for gas cylinders according to an exemplary embodiment. DETAILED DESCRIPTION
[0042] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.
[0043] The terms used in this application are for the purpose of describing specific embodiments only and are not intended to limit this application. The singular forms of "a", "said" and "the" used in this application and the appended claims are also intended to include plural forms unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.
[0044] It should be understood that although the terms first, second, third, etc. may be used in the present application to describe various information, these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".
[0045] Figure 1 FIG. 1 is a partial cross-sectional schematic diagram of a gas storage bottle according to an exemplary embodiment. Figure 1 As shown, the gas cylinder includes a gas cylinder body 1 and an electronic tag 2. The electronic tag 2 is fixedly arranged in the gas cylinder body 1, and the electronic tag 1 includes an antenna and a communication chip connected to the antenna. The communication chip stores the gas cylinder information of the gas cylinder, and the gas cylinder information in the electronic tag 2 can be read by a reader / writer later. Moreover, by setting the electronic tag 2 in the gas cylinder body 1, the electronic tag 2 can be protected, the probability of the electronic tag 2 being worn is reduced, the management efficiency of the gas cylinder is improved, and the data security and data accuracy are enhanced.
[0046] For example, the gas cylinder information may include at least one of the following: the model, number, manufacturer and production date written by the gas cylinder manufacturer through the reader / writer before leaving the factory; the number of fillings, filling date, gas cylinder pressure after filling, hydrogen purity, hydrogen filling station information and hydrogen filling volume written by the hydrogen filling station through the reader / writer; the inspection date, inspection results and inspection station information written by the inspection station through the reader / writer; the vehicle information, vehicle factory date and regular inspection market interval written by the vehicle manufacturer through the reader / writer; the license plate number, user information and traffic accident date written by the government department through the reader / writer; the supervision information written by the supervision department through the reader / writer, etc.
[0047] The electronic tag 2 can be set with a unique serial number, through which the corresponding hydrogen storage cylinder can be uniquely identified for easy traceability; the information stored in the electronic tag 2 can be encrypted by an encryption algorithm before writing, so that different categories of readers and writers can only perform operations of corresponding levels, for example, the first-level reader and writer can perform read and write functions, the second-level reader and writer can perform write functions, and the third-level reader and writer can perform read functions, while other readers and writers cannot read and write cylinder information.
[0048] Still Figure 1 As shown, the gas cylinder body 1 includes an inner liner 11, a carbon fiber winding layer 12 and a glass fiber winding layer 13. The carbon fiber winding layer 12 is wound around the inner liner 11, and the glass fiber winding layer 13 is wound around the carbon fiber winding layer 12. The electronic tag 2 is embedded in the glass fiber winding layer 13, thereby protecting the electronic tag 2. Alternatively, in other embodiments, the electronic tag 2 is arranged between the carbon fiber winding layer 12 and the glass fiber winding layer 13, which can also protect the electronic tag 2. Based on this structure, a packaging process can be used to ensure that the electronic tag 2 is tightly combined with the glass fiber winding layer 13 without affecting the structural integrity and performance of the glass fiber winding layer 13. During the manufacturing process, the electronic tag is implanted in a suitable position of the glass fiber winding layer 13 using advanced embedding technology, so that it can be stably fixed on the surface of the gas cylinder body 1, while ensuring that the performance of the antenna of the electronic tag 2 is not affected by fatigue stress and its service life, thereby achieving reliable radio frequency signal reception and transmission.
[0049] However, due to the harsh use environment of vehicle gas cylinders, in special scenarios such as fire, conventional paper labels or ordinary electronic labels cannot survive; in addition, the electronic label 2 encapsulated under the glass fiber winding layer 13 will be under pressure, and a special pressure-resistant electronic label is required. Therefore, the electronic label 2 can be an electronic label made of flexible anti-metal absorbing material.
[0050] like Figure 2As shown, the gas cylinder body 1 is provided with a plug 14, and the plug 14 is provided with a groove 141. The electronic tag 2 is arranged in the groove 141, and the electronic tag 2 is protected by the plug 14. Of course, in other embodiments, the plug 14 is also provided with a hollow groove, and the electronic tag 2 is embedded in the hollow groove to achieve complete protection of the electronic tag 2. Among them, by optimizing the material and structure of the plug, it is possible to ensure that the radio frequency signal can smoothly penetrate the plug to achieve communication with the external reader, while ensuring that the sealing performance and mechanical strength of the plug are not affected. The electronic tag 2 encapsulated in the plug 14 adopts a metal-resistant ceramic material electronic tag.
[0051] Based on the gas cylinder provided with the electronic tag 2, the present application also provides a monitoring method for the gas cylinder, which can be applied to a server, and the server can be configured in a computer system, such as Figure 3 As shown, the monitoring method may include the following steps:
[0052] In step 301, a reader / writer is used to obtain information of various gas cylinders stored in the electronic tag 2 integrated in the gas cylinder.
[0053] In this embodiment, the reader can establish a communication connection with the computer system, and the content of the electronic tag read by the reader can be uploaded to the computer system, and the gas cylinder information written by the reader can also be uploaded to the computer system through the reader. The reader can be installed in relevant places such as gas cylinder manufacturers, government departments, regulatory departments, hydrogen stations, car repair stations and gas cylinder inspection stations. The reader has high sensitivity and anti-interference ability, and can accurately and quickly read and write information in electronic tags in complex environments, such as electromagnetic interference, different climatic conditions, etc. The reader can be connected to the computer system through wired or wireless communication to achieve real-time transmission and sharing of data.
[0054] In hydrogen stations, maintenance stations, and testing centers, the installation location of the reader should be reasonably determined according to the on-site environment and the flow path of the gas cylinder. The reader should be installed in a position where it can easily and accurately read the electronic tag 2 of the gas cylinder, while avoiding electromagnetic interference from other devices; the reader also needs to be parameterized and debugged to match the communication frequency, encoding method and other parameters of the electronic tag 2; and then the performance of the reader can be optimized by testing the reading and writing effects at different distances and angles to ensure that the tag information can be read and written stably and quickly.
[0055] In step 302, when one or more of the gas cylinder information exceeds the safety condition range, high-risk gas storage cylinders corresponding to the gas cylinder information exceeding the safety condition range are obtained.
[0056] In this embodiment, the multiple safety condition ranges can be pre-stored in the computer system, and each safety condition range can correspond to a type of gas cylinder information. For example, taking the gas cylinder information as the gas cylinder pressure, the safety condition range can be a safety pressure condition, and the gas cylinder pressure and the safety pressure condition can be compared. When the gas cylinder pressure is outside the safety pressure condition, the corresponding high-risk gas cylinder can be obtained. For example, the correspondence between the unique serial number of the electronic tag and the gas cylinder pressure can be stored, so that the high-risk gas cylinder whose gas cylinder pressure exceeds the safety pressure condition can be uniquely determined later. Among them, the gas cylinder pressure can be detected and obtained by the vehicle-mounted system, and then written into the electronic tag 2 through the reader / writer.
[0057] For another example, in order to ensure the safe use of gas cylinders, there is a requirement for regular inspection of gas cylinders from the date they leave the factory. Therefore, the gas cylinder information includes the inspection date. The safety condition range is the inspection period condition. The corresponding high-risk gas cylinder can be obtained by obtaining the interval between the current day and the inspection day. When the interval exceeds the inspection period condition, the corresponding high-risk gas cylinder can be obtained. Alternatively, the corresponding high-risk gas cylinder can be obtained when the interval is close to the inspection period condition. Of course, in order to reduce the workload, gas cylinders with the same inspection date can be classified into the same inspection bottle category. Subsequently, only the interval of any one of the same inspection bottle category needs to be calculated. When the interval exceeds the inspection period condition, all gas cylinders in the same inspection bottle category are determined to be high-risk gas cylinders.
[0058] In step 303, an early warning reminder about the high-risk gas cylinder is sent to the target device.
[0059] In this embodiment, after the high-risk gas cylinders are determined, an early warning prompt can be sent to the target device to inform relevant personnel of the current status of the gas cylinders. For example, when the pressure of the gas cylinder exceeds the safe pressure condition, the target device can be determined based on the user information in the gas cylinder information, and then an early warning message can be sent to the target device. Among them, the early warning message can be a reminder for a spot inspection, a reminder for an over-inspection, a reminder for overpressure, or a reminder for the expiration of the gas cylinder life. The target device can be a vehicle-mounted terminal or a handheld terminal, and the early warning message can be sent in the form of a text message, or displayed on the screen of the target device, or in the form of a sound reminder, and this application does not limit this.
[0060] In some other embodiments, during the use of the gas cylinder, the gas cylinder information in the electronic tag may be updated or added. For example, after filling at a hydrogen station, the gas cylinder pressure of the gas cylinder may be updated, and the hydrogen station information, hydrogen filling amount information, etc. may be added. Therefore, the gas cylinder information in the computer system also needs to be updated or added synchronously, so the updated information of the reader / writer updating one or more gas cylinder information can be obtained; the updated information replaces the original gas cylinder information, or the updated information is added. For example, the gas cylinder pressure can be updated in the computer system, and the hydrogen station information and hydrogen filling amount information can be added at the same time.
[0061] Based on the technical solution of this application, such as Figure 4 As shown, a management system for gas cylinders is also provided, such as Figure 4 As shown, the management system includes a plurality of gas cylinders 100, each of which is provided with an electronic tag, and the electronic tag stores the gas cylinder information of the gas cylinder; at least one reader / writer 200, each of which is used to read and / or write the gas cylinder information of the electronic tag; an information management system 300, the information management system is communicatively connected with each of the reader / writers, and the information management system is used to obtain a plurality of gas cylinder information stored in the electronic tag integrated in the gas cylinder through the reader / writer; when one or more of the gas cylinder information exceeds the safety condition range, obtain the high-risk gas cylinder corresponding to the gas cylinder information exceeding the safety condition range; send an early warning prompt about the high-risk gas cylinder to the target device to obtain the information read by the reader / writer.
[0062] Take a simple life cycle of a gas cylinder as an example. From the time the gas cylinder is manufactured, the initial information of the gas cylinder is written into the electronic tag, such as the unique serial number, production date, manufacturer, etc. During the hydrogenation process, the reader 200 configured by the hydrogenation station reads the information of the gas cylinder, confirms that the state of the gas cylinder meets the filling requirements, and then fills it. At the same time, the filling information (such as filling time, filling amount, etc.) is updated to the electronic tag. At the same time, the hydrogenation station can also upload the read information and updated information to the information management system 300. During the operation of the car, if necessary, the information of the gas cylinder can be temporarily read and checked by a fixed or mobile reader (such as a door reader, handheld reader, etc. at the hydrogenation station). When the gas cylinder is regularly inspected or maintained, the reader at the inspection station reads the electronic tag, and the maintenance personnel perform corresponding maintenance operations based on the information and update the maintenance results to the electronic tag. The information management system 300 always manages and analyzes these data to ensure the safety and effective management of the gas cylinder.
[0063] The design of the information management system 300 includes database design, user interface design, and data processing algorithms. The database should be able to store a large amount of information about various gas cylinders and ensure the security and integrity of the data. The user interface should be simple and intuitive to facilitate operations by managers. The information management system is deployed on the server and a communication connection with the reader is established. The system is tested and optimized to ensure that it can receive, process, and analyze the gas cylinder information from the reader in real time, and can accurately issue warnings and management instructions.
[0064] In order to protect the gas cylinder information of the electronic tag 2, the gas cylinder information stored in the electronic tag is encrypted gas cylinder information; the management system includes multiple readers and writers, and the multiple readers and writers are divided into first-category readers and writers and second-category readers and writers, wherein the first-category readers and writers are configured with first-level keys for reading and writing the gas cylinder information of the electronic tag, and the second-category readers and writers are configured with second-level keys for reading the gas cylinder information of the electronic tag. For example, the second-category reader and writer can be configured at the user end to prevent the user from tampering with private information. For example, the first-category reader and writer can be configured at the maintenance station or the inspection station to facilitate reading the information stored in the electronic tag 2 and understanding the maintenance history, and also to facilitate writing the current maintenance or inspection situation into the electronic tag 2.
[0065] Based on the management system of the gas cylinder, the electronic tag technology is used to realize the automatic identification and information management of the gas cylinder, eliminating the need for manual recording and query of gas cylinder information, greatly improving management efficiency. Managers can quickly obtain detailed information about the gas cylinder in the information management system, including historical filling and maintenance records, etc., which facilitates timely decision-making and improves management efficiency.
[0066] Real-time monitoring of gas cylinder information and timely warning when abnormal situations occur can effectively avoid safety accidents caused by gas cylinder failures. At the same time, accurate identification and information traceability capabilities help ensure regular inspection and maintenance of gas cylinders, ensuring their safe operation throughout their life cycle and enhancing safety.
[0067] The information stored in the electronic tag is accurate and complete, and is not easily affected by the external environment (such as wear and pollution). The wireless communication between the reader and the short marshaling tag reduces data errors caused by human factors, ensures the reliability of the gas cylinder information, provides strong support for the scientific management of gas cylinders, and improves data accuracy.
[0068] The system of the present application can be easily integrated with other related systems such as hydrogen refueling station management systems and automobile maintenance management systems to achieve information sharing and collaborative work, and further optimize the overall operational efficiency of the hydrogen energy automobile industry.
[0069] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the disclosure disclosed herein. The present application is intended to cover any modification, use or adaptation of the present application, which follows the general principles of the present application and includes common knowledge or customary techniques in the art that are not disclosed in the present application. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present application are indicated by the following claims.
[0070] It should be understood that the present application is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.
Claims
1. A method for monitoring a gas cylinder, characterized in that: Applied to a server, the monitoring method comprises: Obtain various gas cylinder information stored in the electronic tags integrated in the gas cylinders through the reader / writer; When one or more of the gas cylinder information exceeds the safety condition range, obtaining high-risk gas storage cylinders corresponding to the gas cylinder information exceeding the safety condition range; Send an early warning reminder about the high-risk gas cylinder to the target device.
2. The monitoring method according to claim 1, characterized in that: include: Obtaining updated information of one or more gas cylinder information by the reader; The updated information replaces the original gas cylinder information, or the updated information is added.
3. The monitoring method according to claim 1, characterized in that: The gas cylinder information includes gas cylinder pressure; When one or more of the gas cylinder information exceeds the safety condition range, obtaining the high-risk gas storage cylinder corresponding to the gas cylinder information exceeding the safety condition range includes: Compare cylinder pressure to safe pressure conditions; When the gas cylinder pressure is outside the safety pressure condition, a corresponding high-risk gas cylinder is obtained.
4. The monitoring method according to claim 1, characterized in that: The cylinder information includes the inspection date; When one or more of the gas cylinder information exceeds the safety condition range, obtaining the high-risk gas storage cylinder corresponding to the gas cylinder information exceeding the safety condition range includes: Get the interval between the current date and the inspection date; When the interval time exceeds the inspection period condition, the corresponding high-risk gas cylinder is obtained.
5. The monitoring method according to claim 4, characterized in that: Also includes: Gas cylinders with the same inspection date are grouped into the same inspection cylinder category; When the interval time exceeds the inspection period condition, all gas cylinders of the same inspection cylinder category are determined as high-risk gas cylinders.
6. A gas cylinder management system, characterized in that: include: A plurality of gas cylinders, each of which is provided with an electronic tag, wherein the electronic tag stores the gas cylinder information of the gas cylinder; At least one reader / writer, each of which is used to read and / or write the gas cylinder information of the electronic tag; An information management system, wherein the information management system is in communication connection with each of the reader / writers, and the information management system is used to obtain information of multiple gas cylinders stored in the electronic tags integrated in the gas cylinders through the reader / writers; when one or more of the gas cylinder information exceeds the safety condition range, obtain the high-risk gas cylinders corresponding to the gas cylinder information exceeding the safety condition range; An early warning prompt about the high-risk gas cylinder is sent to the target device to obtain the information read by the reader.
7. The management system according to claim 6, characterized in that: The gas cylinder information stored in the electronic tag is encrypted gas cylinder information; The management system includes multiple readers and writers, which are divided into first category readers and writers and second category readers and writers, wherein the first category readers and writers are configured with first level keys for reading and writing the gas cylinder information of the electronic tags, and the second category readers and writers are configured with second level keys for reading the gas cylinder information of the electronic tags.
8. A gas storage cylinder, characterized in that: include: Gas cylinder body; An electronic tag is fixedly arranged in the gas cylinder body, and the electronic tag comprises an antenna and a communication chip electrically connected to the antenna, and the communication chip stores the gas cylinder information of the gas storage cylinder.
9. The gas storage cylinder according to claim 8, characterized in that: The gas cylinder body comprises an inner liner, a carbon fiber winding layer and a glass fiber winding layer, wherein the carbon fiber winding layer is wound around the inner liner, and the glass fiber winding layer is wound around the carbon fiber winding layer; The electronic tag is arranged between the carbon fiber winding layer and the glass fiber winding layer; or, the electronic tag is embedded in the glass fiber winding layer.
10. The gas storage cylinder according to claim 8, characterized in that: The gas cylinder body is provided with a plug, the plug is provided with a hollow groove or a groove, and the electronic tag is fixedly arranged in the hollow groove or the groove.
Citation Information
Patent Citations
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JP7339465B1