A wind farm climbing operation intelligent management method

Abstract

The application provides a wind power plant climbing operation intelligent management method, a workman terminal APP is connected with intelligent protection equipment through Bluetooth communication, the workman terminal APP collects workman basic information, intelligent protection equipment ID information, climbing operation site information and manager information and sends to a platform server, the manager terminal APP audits and processes push information sent by the platform server, the platform server sends a pre-operation wearing check instruction to the manager terminal APP, and the manager terminal APP sends pre-operation wearing check pass information and wearing image information to the platform server for archiving and saving. The wind power plant climbing operation intelligent management method can standardize and monitor the correct wearing and use of protection equipment by the workman, effectively reduce the operation risk and protect the personal safety of the workman.

Description

Technical Field

[0001] This invention relates to the field of safety management technology for high-altitude operations in wind farms, and in particular to an intelligent management method for high-altitude operations in wind farms. Background Technology

[0002] Wind farm high-altitude operations refer to work activities carried out by personnel at a height of 2 meters or more above the fall reference plane during the installation, maintenance, and repair of wind turbine generators. High-altitude operations involve high-altitude areas such as wind turbine towers, nacelles, hubs, and blades, and are inherently high-risk, requiring strict adherence to safety regulations.

[0003] A non-climbing lift is a low-speed, lightweight lifting machine that uses a motor to drive a lifting platform along a track installed on a building or equipment ladder for high-altitude transport of personnel and materials. Currently, non-climbing lifts are mainly used in the wind power industry, installed on ladders inside wind turbine towers for use by wind turbine maintenance personnel. This greatly reduces the physical exertion required for personnel to climb wind turbine towers and transport maintenance instruments and equipment, thus improving the efficiency of wind turbine maintenance.

[0004] Currently, when workers use climbing devices to perform high-altitude operations in wind farms, they need to wear safety belts and helmets. However, the proper use of safety belts and helmets relies solely on the workers' self-discipline; there is no way to enforce regulations or monitor them in real time, posing a safety hazard. Improper use by workers can easily lead to accidents with serious consequences.

[0005] Accordingly, the present invention provides an intelligent management method for high-altitude operations in wind farms, which is used to standardize and monitor the wearing of protective equipment by operators. Summary of the Invention

[0006] The purpose of this invention is to provide an intelligent management method for high-altitude operations in wind farms, which can standardize and monitor the wearing of protective equipment by workers, effectively reduce operational risks, and ensure the personal safety of workers.

[0007] This invention provides an intelligent management method for high-altitude operations in wind farms, comprising: The worker informed the site manager that they had requested to wear intelligent protective equipment while performing work at height. The operator opens the operator terminal APP, and the site manager opens the manager terminal APP; The operator's terminal APP connects to the intelligent protection equipment provided by the site manager via Bluetooth; The worker's terminal APP obtains the worker's basic information, the smart protective equipment ID information, and the location information for working at height. The worker selects the manager and clicks to confirm the application for wearing the equipment. The worker's terminal APP will send the collected basic information of the worker, the ID information of the intelligent protection device, the information of the high-altitude work location, and the information of the manager to the platform server; The platform server compares the received information with the original information to determine whether the information is accurate. If the information is accurate, the platform server sends push information to the administrator's terminal APP. The administrator terminal APP reviews and processes the received push information. If the review is successful, the administrator terminal APP sends the approval information to the platform server. After receiving the approval information, the platform server generates a wearing instruction and sends the generated wearing instruction to the worker's terminal APP; Once the worker has finished wearing the smart protective equipment, they send a completion message to the platform server via the worker's terminal APP. The platform server then sends a pre-work wearing inspection instruction to the manager's terminal APP. After receiving the pre-work wearing inspection instruction via the management terminal APP, the on-site manager checks the worker's wearing status. If the check confirms that the equipment is worn correctly, the administrator can click to confirm that the pre-work equipment check has passed through the management terminal APP, and collect images of the equipment on both sides of the worker's equipment. Then, the management terminal APP sends the pre-work equipment check pass information and equipment images to the platform server for archiving and storage.

[0008] According to the intelligent management method for high-altitude operations in wind farms provided by the present invention, the on-site manager checks the wearing status of the equipment worn by the workers; If an inspection confirms that the device is not worn correctly, the on-site manager will inform the worker to make adjustments until the worker wears the smart protective equipment correctly.

[0009] The intelligent management method for wind farm high-altitude operations provided by the present invention further includes: Before commencing work at height, workers must send a work request to the platform server via their mobile app. After receiving the job application information, the platform server generates a monitoring activation command and sends the generated monitoring activation command to the intelligent protection device through the operator's terminal APP; After receiving the monitoring activation command, the intelligent protection device controls the monitoring and alarm components installed on the device to start working and issues a voice prompt.

[0010] The intelligent management method for wind farm high-altitude operations provided by the present invention further includes: When workers are working at height, the monitoring and alarm components can monitor in real time whether there are any abnormalities in the use of intelligent protective equipment; If any abnormal usage occurs, the intelligent protection device will issue an alarm prompt voice and simultaneously send an abnormal usage alarm message to the platform server through the operator's terminal APP. The platform server will record the abnormal usage alarm message. If the abnormal situation is not eliminated after the alarm prompt voice continues for the predetermined time, the platform server will send the abnormal alarm information to the administrator's terminal APP. After receiving an alarm message about abnormal usage via the management terminal APP, the on-site manager can promptly check the status of the workers through the on-site monitoring equipment and inform the workers to make adjustments via walkie-talkie.

[0011] According to the present invention, an intelligent management method for high-altitude operations in wind farms is provided, wherein the intelligent protective equipment includes an intelligent safety belt and an intelligent safety helmet; the monitoring and alarm components include a waist belt detector, a shoulder belt detector, a hook detector, an alarm controller, and a safety helmet detector.

[0012] According to the intelligent management method for high-altitude operations in wind farms provided by the present invention, the on-site manager checks the wearing status of the equipment worn by the workers, specifically including: Check if the smart helmet is worn correctly; Check if the smart seat belt is worn correctly; Check whether the monitoring and alarm components set on the smart helmet and smart seat belt are turned on; Check if the operator is wearing a walkie-talkie receiver.

[0013] According to the intelligent management method for wind farm high-altitude operations provided by the present invention, the abnormal use of the intelligent protection equipment specifically includes: single hook not being hung high, double hook not being hung high, or double hook being hung too close.

[0014] The intelligent management method for wind farm high-altitude operations provided by the present invention further includes: The platform server compiles statistics on abnormal alarm information records. If the same operator is detected to have more than three abnormal usage alarm messages within a day, the platform server will send alarm data push information to the operator's terminal APP and the manager's terminal APP respectively. After receiving the alarm data push information via the management terminal APP, the on-site manager will manage and correct the operator.

[0015] According to the present invention, a method for intelligent management of wind farm high-altitude operations is provided, wherein the basic information of the operator includes identity information, facial image information and current location information.

[0016] According to the present invention, a method for intelligent management of wind farm high-altitude operations is provided, wherein the pushed information includes the operator's identity information, facial image information, current location information, intelligent protection device ID information, and reviewer information.

[0017] The intelligent management method for wind farm high-altitude operations provided by this invention establishes a Bluetooth communication connection between the operator's terminal APP and the intelligent protective equipment, enabling the acquisition of the intelligent protective equipment's ID information. The operator's terminal APP sends the collected basic information of the operator, the ID information of the intelligent protective equipment, the location information of the high-altitude operation, and the information of the manager to the platform server, achieving a one-to-one real-name binding between the operator and the intelligent protective equipment, and simultaneously identifying the corresponding on-site manager, thus facilitating management. The manager's terminal APP reviews and processes the push information sent by the platform server, verifying the operator's basic information and preventing risks caused by unauthorized personnel impersonating them. The platform server sends a pre-operation wearing inspection instruction to the manager's terminal APP, allowing the on-site manager to check the operator's wearing of the intelligent protective equipment before high-altitude operations, thereby standardizing the correct wearing of the intelligent protective equipment before operations. The manager's terminal APP sends the pre-operation wearing inspection pass information and wearing image information to the platform server for archiving and storage, standardizing and streamlining the management work of the on-site manager, and eliminating potential risks caused by non-standard or negligent on-site management. Therefore, the intelligent management method for wind farm high-altitude operations provided by this invention can standardize and monitor the correct wearing of protective equipment by wind farm workers, effectively reduce operational risks, and ensure the personal safety of workers.

[0018] Furthermore, when workers are operating at heights, the monitoring and alarm components can detect abnormalities in the use of intelligent protective equipment in real time. This is achieved through voice alarms from the intelligent protective equipment, remote monitoring alerts from the platform server, and on-site notifications from the site manager. This allows workers to promptly identify and adjust safety measures, eliminating potential hazards. Therefore, the intelligent management method for wind farm operations at heights provided by this invention can standardize and monitor the use of protective equipment by workers during these operations, effectively reducing operational risks and ensuring the personal safety of workers. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a flowchart illustrating the intelligent management method for wind farm high-altitude operations according to the present invention. Figure 2 This is a schematic diagram illustrating the communication relationship between the operator's terminal APP, the manager's terminal APP, the intelligent protection equipment, and the platform server in the intelligent management method for high-altitude operations in wind farms of the present invention. Detailed Implementation

[0021] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they may refer to a fixed connection, a detachable connection, or an integral connection; they may refer to a mechanical connection or an electrical connection; they may refer to a direct connection or an indirect connection through an intermediate medium; and they may refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0024] like Figure 1 and Figure 2 As shown in the figure, the intelligent management method for wind farm high-altitude operations according to an embodiment of the present invention specifically includes the following steps: The worker informed the site manager that they had requested to wear intelligent protective equipment for working at height.

[0025] The operator opens the operator terminal APP, and the site manager opens the manager terminal APP.

[0026] The operator's terminal APP connects to the intelligent protection equipment provided by the site manager via Bluetooth.

[0027] The worker's terminal APP obtains the worker's basic information, the ID information of the intelligent protective equipment, and the location information of the high-altitude operation. The worker selects the administrator and clicks to confirm the application for wearing the equipment.

[0028] The operator's terminal APP will send the collected basic information of the operator, the ID information of the intelligent protection equipment, the information of the location of the high-altitude operation, and the information of the manager to the platform server.

[0029] The platform server compares the received information with the original information to determine its accuracy. If the information is accurate, the platform server sends push information to the administrator's terminal APP.

[0030] The administrator terminal APP reviews and processes the received push information. If the review is successful, the administrator terminal APP sends the approval information to the platform server.

[0031] After receiving the approval information, the platform server generates a wearing instruction and sends the generated wearing instruction to the worker's terminal APP.

[0032] Once the worker has completed wearing the intelligent protective equipment, they send a completion message to the platform server via the worker's terminal APP. The platform server then sends a pre-work wearing inspection instruction to the manager's terminal APP.

[0033] After receiving the pre-work wearing inspection instruction via the management terminal APP, the on-site manager checks the worker's wearing status.

[0034] If the check confirms that the equipment is worn correctly, the administrator can click to confirm that the pre-work equipment check has passed through the management terminal APP, and collect images of the equipment on both sides of the worker's equipment. Then, the management terminal APP sends the pre-work equipment check pass information and equipment images to the platform server for archiving and storage.

[0035] If an inspection confirms that the device is not worn correctly, the on-site manager will inform the worker to make adjustments until the worker wears the smart protective equipment correctly.

[0036] In other words, the intelligent management method for wind farm high-altitude operations in this embodiment of the invention establishes a Bluetooth communication connection between the operator's terminal APP and the intelligent protection device, enabling the operator's terminal APP to obtain the ID information of the intelligent protection device. The operator's terminal APP then sends the collected basic information of the operator, the ID information of the intelligent protection device, the high-altitude operation location information, and the manager's information to the platform server. The platform server can achieve a one-to-one real-name binding between the operator and the intelligent protection device, and simultaneously determine the on-site manager corresponding to the operator, thereby facilitating management. The manager's terminal APP reviews and processes the push information sent by the platform server, enabling the management of the operation. The system verifies the basic information of personnel to prevent non-operating personnel from using intelligent protective equipment for high-altitude operations, thus preventing risks. A pre-operation wearing inspection instruction is sent from the platform server to the manager's terminal APP, enabling on-site managers to check the wearing of intelligent protective equipment by workers before high-altitude operations. This ensures the correct wearing of intelligent protective equipment by workers before high-altitude operations. The pre-operation wearing inspection information and images sent from the manager's terminal APP to the platform server are archived, standardizing and streamlining the management work of on-site managers and eliminating potential risks caused by non-standard or negligent on-site management. Therefore, the intelligent management method for high-altitude operations in wind farms according to this invention can standardize and monitor the correct wearing of protective equipment by wind farm workers before high-altitude operations, effectively reducing operational risks and ensuring the personal safety of workers.

[0037] Specifically, the basic information of the operator mentioned above includes identity information, facial image information, and current location information.

[0038] Specifically, the aforementioned push notification information includes the worker's identity information, facial image information, current location information, smart protection device ID information, and reviewer information.

[0039] Specifically, the aforementioned raw information consists of the basic information of all operators, the ID information of all intelligent protection devices, and the basic information of all on-site managers, all pre-stored on the platform server.

[0040] Furthermore, the intelligent management method for wind farm high-altitude operations according to embodiments of the present invention also includes: Before commencing work at height, workers send a work request to the platform server via their mobile app.

[0041] After receiving the job application information, the platform server generates a monitoring activation command and sends the generated monitoring activation command to the intelligent protection device through the operator's terminal APP.

[0042] After receiving the monitoring activation command, the intelligent protection device controls the monitoring and alarm components installed on the device to start working and issues a voice prompt.

[0043] When workers are working at height, the monitoring and alarm components can monitor in real time whether there are any abnormalities in the use of intelligent protection equipment.

[0044] If any abnormal situation is detected, the intelligent protection device will issue an alarm prompt voice to remind the operator to handle it in time. At the same time, the operator's terminal APP will send the abnormal usage alarm information to the platform server, and the platform server will record the abnormal usage alarm information.

[0045] If the abnormal situation persists after the alarm prompt voice has been playing for a predetermined time, the platform server will send an abnormal alarm message to the administrator's terminal APP. The duration of this alarm prompt voice can be set to 10-15 minutes, and can also be adjusted according to the actual construction situation.

[0046] After receiving an alarm message about abnormal usage via the management terminal APP, the on-site manager can promptly check the status of the workers through the on-site monitoring equipment and inform the workers to make adjustments via walkie-talkie.

[0047] In other words, the intelligent management method for wind farm elevated operations according to this invention enables the monitoring and alarm components on the intelligent protection equipment to be activated before the workers begin their elevated operations. This ensures that the monitoring and alarm components can monitor any abnormalities in the use of the intelligent protection equipment in real time during the elevated operations. When abnormalities occur during the workers' elevated operations, the intelligent protection equipment can issue alarm voice prompts, the platform server can remotely monitor and prompt the site manager, and the site manager can provide on-site notifications and reminders. This allows the workers to promptly detect and adjust the situation, eliminating potential safety hazards.

[0048] Therefore, the intelligent management method for wind farm high-altitude operations according to the embodiments of the present invention can standardize and monitor the use of protective equipment by operators during high-altitude operations, effectively reduce operational risks, and ensure the personal safety of operators.

[0049] In some embodiments of the present invention, the intelligent protective device includes an intelligent safety belt and an intelligent safety helmet. The monitoring and alarm components include a waist belt detector mounted on the intelligent safety belt, shoulder strap detectors mounted on the intelligent safety belt, hook detectors mounted on the two hooks of the intelligent safety belt, an alarm controller mounted on the intelligent safety belt, and a helmet detector mounted on the intelligent safety helmet.

[0050] The waist belt detector, shoulder strap detector, two hook detectors, and helmet detector are used for distance measurement. By acquiring the distance measurement information between the waist belt detector, shoulder strap detector, each hook detector, and helmet detector, the position of each component on the smart safety belt and smart helmet can be determined. When the position is incorrect, it indicates that there is a problem with the use of the smart protective equipment. The alarm controller will issue a corresponding alarm prompt voice and simultaneously report the problem to the platform server for recording. Since the technology used in this embodiment to determine abnormal usage by setting various detectors on the smart protective equipment for distance measurement is existing technology, its specific implementation method and working principle will not be described in detail here.

[0051] Specifically, in the intelligent management method for wind farm high-altitude operations in this embodiment of the invention, the on-site manager checks the workers' attire, including: checking whether the smart safety helmet is worn correctly; checking whether the smart safety belt is worn correctly; checking whether the monitoring and alarm components set on the smart safety helmet and smart safety belt are turned on; and checking whether the workers are wearing walkie-talkie receivers.

[0052] Specifically, in the intelligent management method for wind farm high-altitude operations in this embodiment of the invention, abnormal use of intelligent protective equipment includes any one of the following: single hook not being hung high, double hook not being hung high, and double hook being hung too close.

[0053] Furthermore, the intelligent management method for wind farm high-altitude operations according to embodiments of the present invention also includes: The platform server compiles statistics on usage anomaly alarm information records.

[0054] If the same operator is detected to have more than three abnormal usage alarm messages within a day, the platform server will send alarm data push information to the operator's terminal APP and the manager's terminal APP respectively.

[0055] After receiving the alarm data push information via the management terminal APP, the on-site manager will manage and correct the operator.

[0056] In other words, by statistically analyzing alarm information about abnormal usage by workers, managers can promptly grasp the violations of workers at height, thereby taking timely disciplinary action and significantly reducing the probability of habitual violations by workers on the construction site, thus serving as a warning and deterrent.

[0057] In summary, the intelligent management method for wind farm high-altitude operations in this embodiment of the invention, by establishing an Internet of Things (IoT) communication between the operator's terminal APP, the manager's terminal APP, intelligent protective equipment, and the platform server, enables intelligent management of wind farm high-altitude operations. This allows managers at all levels to accurately grasp the status and risks of high-altitude operations, ensuring that high-altitude operations are known beforehand, controllable during operation, and traceable afterward, effectively reducing operational risks and protecting the personal safety of operators.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A smart management method for high-altitude operations in wind farms, characterized in that, include: The worker informed the site manager that they had requested to wear intelligent protective equipment while performing work at height. The operator opens the operator terminal APP, and the site manager opens the manager terminal APP; The operator's terminal APP connects to the intelligent protection equipment provided by the site manager via Bluetooth; The worker's terminal APP obtains the worker's basic information, the smart protective equipment ID information, and the location information for working at height. The worker selects the manager and clicks to confirm the application for wearing the equipment. The worker's terminal APP will send the collected basic information of the worker, the ID information of the intelligent protection device, the information of the high-altitude work location, and the information of the manager to the platform server; The platform server compares the received information with the original information to determine whether the information is accurate. If the information is accurate, the platform server sends push information to the administrator's terminal APP. The administrator terminal APP reviews and processes the received push information. If the review is successful, the administrator terminal APP sends the approval information to the platform server. After receiving the approval information, the platform server generates a wearing instruction and sends the generated wearing instruction to the worker's terminal APP; Once the worker has finished wearing the smart protective equipment, they send a completion message to the platform server via the worker's terminal APP. The platform server then sends a pre-work wearing inspection instruction to the manager's terminal APP. After receiving the pre-work wearing inspection instruction via the management terminal APP, the on-site manager checks the worker's wearing status. If the check confirms that the equipment is worn correctly, the administrator can click to confirm that the pre-work equipment check has passed through the management terminal APP, and collect images of the equipment on both sides of the worker's equipment. Then, the management terminal APP sends the pre-work equipment check pass information and equipment images to the platform server for archiving and storage.

2. The intelligent management method for wind farm high-altitude operations according to claim 1, characterized in that, The on-site manager shall check whether the workers are wearing the protective gear; If an inspection confirms that the device is not worn correctly, the on-site manager will inform the worker to make adjustments until the worker wears the smart protective equipment correctly.

3. The intelligent management method for wind farm high-altitude operations according to claim 1, characterized in that, Also includes: Before commencing work at height, workers must send a work request to the platform server via their mobile app. After receiving the job application information, the platform server generates a monitoring activation command and sends the generated monitoring activation command to the intelligent protection device through the operator's terminal APP; After receiving the monitoring activation command, the intelligent protection device controls the monitoring and alarm components installed on the device to start working and issues a voice prompt.

4. The intelligent management method for wind farm high-altitude operations according to claim 3, characterized in that, Also includes: When workers are working at height, the monitoring and alarm components can monitor in real time whether there are any abnormalities in the use of intelligent protective equipment; If any abnormal usage occurs, the intelligent protection device will issue an alarm prompt voice and simultaneously send an abnormal usage alarm message to the platform server through the operator's terminal APP. The platform server will record the abnormal usage alarm message. If the abnormal situation is not eliminated after the alarm prompt voice continues for the predetermined time, the platform server will send the abnormal alarm information to the administrator's terminal APP. After receiving an alarm message about abnormal usage via the management terminal APP, the on-site manager can promptly check the status of the workers through the on-site monitoring equipment and inform the workers to make adjustments via walkie-talkie.

5. The intelligent management method for wind farm high-altitude operations according to claim 4, characterized in that, The intelligent protective equipment includes an intelligent safety belt and an intelligent safety helmet; the monitoring and alarm components include a waist belt detector installed on the intelligent safety belt, a shoulder belt detector installed on the intelligent safety belt, a hook detector installed on the two hooks of the intelligent safety belt, an alarm controller installed on the intelligent safety belt, and a safety helmet detector installed on the intelligent safety helmet.

6. The intelligent management method for wind farm high-altitude operations according to claim 5, characterized in that, The on-site manager shall check the workers' wearing of the equipment, specifically including: Check if the smart helmet is worn correctly; Check if the smart seat belt is worn correctly; Check whether the monitoring and alarm components set on the smart helmet and smart seat belt are turned on; Check if the operator is wearing a walkie-talkie receiver.

7. The intelligent management method for wind farm high-altitude operations according to claim 5, characterized in that, Abnormal situations in the use of the intelligent protection equipment include: single hook not being hung high, double hook not being hung high, or double hook being hung too close.

8. The intelligent management method for wind farm high-altitude operations according to claim 4, characterized in that, Also includes: The platform server compiles statistics on abnormal alarm information records. If the same operator is detected to have more than three abnormal usage alarm messages within a day, the platform server will send alarm data push information to the operator's terminal APP and the manager's terminal APP respectively. After receiving the alarm data push information via the management terminal APP, the on-site manager will manage and correct the operator.

9. The intelligent management method for wind farm high-altitude operations according to claim 1, characterized in that, The basic information of the operator includes identity information, facial image information, and current location information.

10. The intelligent management method for wind farm high-altitude operations according to claim 1, characterized in that, The push notification includes the worker's identity information, facial image information, current location information, smart protection device ID information, and reviewer information.

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