Aircraft maintenance self-service borrowing and returning tool cabinet based on radio frequency identification technology

Abstract

The utility model discloses an aircraft maintenance self-service borrowing and returning tool cabinet based on the radio frequency identification technology, which comprises a cabinet body, a cabinet door and a central control system, and the central control system controls the cabinet door to be opened or closed through an electronic lock. The tool cabinet is further provided with a two-dimensional code recognition module used for recognizing work order information, an IC card high-frequency recognition module used for recognizing personnel identity information and a UHF recognition module used for recognizing tool information, wherein the two-dimensional code recognition module, the IC card high-frequency recognition module and the UHF recognition module are connected with the central control system. And the UHF identification module realizes comprehensive coverage of wireless radio frequency signals in the cabinet by arranging UHF radio frequency antennas on the cabinet body and / or the cabinet door. According to the utility model, automatic registration of airplane maintenance tool borrowing and returning can be realized.

Description

Technical Field

[0001] The utility model relates to a self-service borrowing and returning tool cabinet, in particular to an aircraft maintenance self-service borrowing and returning tool cabinet which combines wireless radio frequency technology, two-dimensional code recognition technology, sensor and other technologies, and can realize 24-hour unattended aircraft maintenance tool borrowing and returning registration operations. Background Art

[0002] Radio frequency identification technology is a type of automatic identification technology. It uses radio frequency to conduct non-contact two-way data communication and read and write recording media (electronic tags or radio frequency cards) to achieve the purpose of identifying targets and exchanging data. The radio frequency identification system consists of electronic tags, readers and writers, and computer networks. The self-service tool cabinet based on radio frequency identification technology is an radio frequency identification device that works in the ultra-high frequency UHF band, generally working in the 840-960MHz frequency band (different regions in the world have different standards). The ultra-high frequency system transmits energy through electromagnetic fields. The storage information in the ultra-high frequency RFID tag is read by electromagnetic wave reflection coupling, which has the advantages of long-distance reading and group reading.

[0003] Since UHF technology has the advantages of batch identification and rapid identification, combined with the time and efficiency of tool requirements during daily maintenance work, a self-service tool cabinet based on RFID technology is placed next to the production line. Commonly used tools are placed in the cabinet, so that workers can borrow and return tool information more quickly during maintenance work, and realize 24-hour unattended tool borrowing and returning registration. Therefore, the design of a self-service tool cabinet based on RFID technology is in line with the market development trend of using artificial intelligence to improve work efficiency and reduce manpower requirements and production costs. Utility Model Content

[0004] The utility model aims to provide a tool cabinet capable of realizing automatic registration of borrowing and returning of aircraft maintenance tools.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows: a self-service borrowing and returning tool cabinet for aircraft maintenance based on wireless radio frequency identification technology, including a cabinet body, a cabinet door and a central control system. The central control system controls whether the cabinet door is opened or not through an electronic lock. The tool cabinet is also configured with a two-dimensional code recognition module connected to the central control system for identifying work order information, an IC card high-frequency recognition module for identifying personnel identity information, and a UHF ultra-high frequency recognition module for identifying tool information. The UHF ultra-high frequency recognition module realizes comprehensive coverage of wireless radio frequency signals in the cabinet by arranging UHF ultra-high frequency radio frequency antennas on the cabinet body and / or the cabinet door.

[0006] The medium and high frequencies of the utility model are mainly used to realize RFID identification within a short distance such as within 5 cm, and the representative frequency is 13.56 MHz. The ultra-high frequency is a wireless radio frequency identification technology with a frequency of 860 MHz-960 MHz and a bandwidth of 100 MHz, which can support the identification of multiple tags at a long distance.

[0007] The central control system of the utility model controls the electromagnetic lock to open the cabinet door according to the recognition results of the two-dimensional code recognition module and the IC card high-frequency recognition module, and when sensing that the cabinet door is closed, identifies the change of tools in the tool cabinet through the UHF ultra-high frequency recognition module, and stores them correspondingly with the recognition results of the two-dimensional code recognition module and the IC card high-frequency recognition module, thereby realizing automatic registration of borrowing and returning of aircraft maintenance tools.

[0008] As an improvement of the present invention, the tool cabinet is also equipped with a camera monitoring system to achieve all-weather monitoring video recording, which includes a camera and a recorder. The camera is connected to the recorder to record the captured video images in the recorder so that the on-site situation of each borrowing and returning registration can be reviewed.

[0009] The camera is installed on the cabinet through a telescopic rod so that the monitoring range can be easily adjusted.

[0010] Combined with practical experience, the utility model also proposes the following optimization scheme for the tool cabinet:

[0011] The cabinet door consists of a door frame and a transparent door panel.

[0012] The cabinet door is provided with a shelf for temporarily placing tools.

[0013] The user interaction terminal of the central control system, the two-dimensional code recognition module, and the IC card high-frequency recognition module are all arranged on the cabinet door.

[0014] The cabinet doors are swing doors that open side by side.

[0015] The cabinet is also divided into a faulty area, the faulty area is isolated from the tool storage area by signal, and an independent signal acquisition terminal is used to identify information of the tools in the area, and the acquisition terminal is also connected to the central control system.

[0016] This measure enables the utility model to not only automatically register the borrowing and returning tool information, but also automatically mark the faulty tools.

[0017] The utility model has the following beneficial effects:

[0018] As the main document of the maintenance process, the work order records the information of the aircraft to be repaired, which is very important for aircraft maintenance operations. The central control system of the utility model quickly identifies the work order information through the QR code recognition module, quickly identifies the personnel identity information through the IC card high-frequency recognition module, and then controls the switch state of the cabinet door through the electronic lock, and after judging that the cabinet door is closed, turns on the UHF ultra-high frequency recognition module to inventory the tools in the cabinet, sorts out the list of tools borrowed or returned in the cabinet, and records the corresponding work order information identified by the QR code recognition module and the personnel identity information identified by the IC card high-frequency recognition module, which can realize the automatic registration of unattended borrowing and returning of aircraft maintenance tools 24 hours a day. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of a tool cabinet in a preferred embodiment of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the assembly and maintenance area of ​​the tool cabinet according to the preferred embodiment of the utility model. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example

[0023] See also Figure 1 , 2 As a preferred embodiment of the aircraft maintenance self-service borrowing and returning tool cabinet based on wireless radio frequency identification technology of the utility model, as Figure 1 As shown, it includes a vertical cabinet 1, in which a plurality of position-adjustable shelves 12 are arranged, the cabinet 1 adopts a biparting flat door, and the cabinet door is composed of a door frame 2 and a tempered high-definition transparent glass plate, so that the tools stored in the tool cabinet can be clearly seen through the glass. The opening of the cabinet door is controlled by an electronic lock.

[0024] A fixing plate 17 is installed on the door frame 2 on one side, and a 19-inch flat-panel integrated machine 7 is fixed on the fixing plate 17. In this embodiment, it serves as the central control system of the tool cabinet. A QR code recognition module 8 and an IC card high-frequency recognition module 9 are fixedly installed below the integrated machine 7, and they are both connected to the integrated machine 7. The tool cabinet recognizes the QR code information on the work order through the QR code recognition module 8, and recognizes the identity information of the worker through the IC card high-frequency recognition module 9. The tool cabinet is also provided with a UHF ultra-high frequency recognition module, which is also connected to the integrated machine 7. The UHF ultra-high frequency radio frequency antenna 13 is arranged in the tool cabinet and is connected to the UHF ultra-high frequency recognition module to achieve full coverage of radio frequency signals in the cabinet.

[0025] After the personnel's identity is identified, the work order information is entered, and the central control system controls the opening of the cabinet door. After the cabinet door is closed, the UHF ultra-high frequency identification module is triggered, and radio frequency waves are transmitted through the UHF ultra-high frequency radio frequency antenna to automatically count the tools in the cabinet, calculate the information of the tools borrowed and returned in the cabinet, and display it together with the personnel's identity information on the flat-panel all-in-one machine 7.

[0026] A two-color alarm light 6 is provided on the top of the cabinet 1. For abnormalities in operation, the flat-panel integrated machine 7 will link the two-color alarm light 6 to buzz and flash an alarm prompt.

[0027] A storage rack 10 is also fixed on the fixed plate 17 , and workers can place tools that are currently being borrowed or to be returned on the storage rack 10 for temporary placement, thereby improving convenience.

[0028] A camera bracket 3 is provided on the top of the cabinet 1. In this embodiment, the camera bracket 3 is a telescopic rod for mounting the camera 5. The monitoring area can be adjusted by adjusting the telescopic rod. Generally speaking, the camera 5 records video around the clock, and it is better to be able to clearly capture the tools placed on the shelf 10.

[0029] In order to identify faulty tools, a fault area 14 is also divided in the cabinet 1. When returning tools, workers can place faulty tools in the fault area 14. The fault area 14 is isolated from the tool storage area signal and has an independent signal acquisition terminal. After the tool is placed in it, the faulty tool information can be quickly identified, and the fault is automatically recorded and marked in the central control system. For example, after placing the faulty tool in the fault area 14 and closing the cabinet door, the system triggers the RFID module in the area to perform port scanning, identify the faulty tool information, and record it in the central control system.

[0030] The back plate 11 inside the cabinet 1 is provided with rows of storage holes, on which tool hooks can be placed, so that tools can be hung on the hooks as needed.

[0031] Four Forma wheels 15 are provided at the bottom of the cabinet 1, forming a movable and fixable cabinet, which can be flexibly moved to a suitable position of the production line.

[0032] Figure 1 Reference numeral 16 indicates an assembly and maintenance area, which is a recessed cavity located at the top of the cabinet 1 . Figure 2 The back of the cabinet 1 is provided with a heat dissipation hole 17 corresponding to the position of the assembly and maintenance area 16, and a negative pressure fan and a temperature sensor are installed at the heat dissipation hole 17. When the temperature reaches a certain value, the integrated machine 7 controls the fan to start, and promptly dissipates the heat generated by the electronic components in the assembly and maintenance area 16 to the outside of the cabinet 1, controls the internal temperature of the assembly and maintenance area 16, avoids overload of the line caused by excessive temperature, and prevents the UHF ultra-high frequency identification module from being affected in reading the tag information.

[0033] A dust screen is also fixedly installed inside the heat dissipation hole 17 of the assembly and maintenance area 16 to prevent external dust and impurities from entering.

[0034] A power module is arranged at the lower layer of the rear of the assembly and maintenance area 16. A power network port hole plate 18 is reserved next to the heat dissipation hole 17, on which a power switch, two RJ45 network ports and a power plug are arranged, and the inner end of the network port is connected to the hard disk burner 20 and the tablet integrated machine 7.

[0035] The hard disk recorder 20 is arranged on one side of the upper layer at the rear of the assembly and maintenance area 16, and the camera 5 is connected to the hard disk recorder 20. The hard disk recorder 20 is used for real-time storage of the video data of the camera 5, and is connected to the enterprise intranet through the network port on the power network port hole plate 18, so that the video in the cabinet 1 can be directly viewed in the enterprise intranet.

[0036] The UHF identification module 21 is connected to the UHF interface board 22 and connected to the tablet computer 7 through the UHF interface board 22 . They are arranged one after the other on the other side of the upper layer at the rear of the assembly and maintenance area 16 .

[0037] A downward UHF radio frequency antenna 13 is arranged in the middle of the upper layer at the rear of the assembly and maintenance area 16. In this embodiment, the UHF radio frequency antenna 13 (such as Figure 1 ) to achieve full coverage of RF signals inside the cabinet.

[0038] Finally, it should be noted that the above is only a preferred embodiment of the utility model and is not intended to limit the scope of protection of the utility model. Although the above embodiments have described the utility model in detail, for those skilled in the art, they can still modify the technical solutions recorded in the above embodiments, or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the scope of protection of the utility model.

Claims

1. A self-service borrowing and returning tool cabinet for aircraft maintenance based on wireless radio frequency identification technology, characterized in that: The tool cabinet comprises a cabinet body, a cabinet door and a central control system. The central control system controls whether the cabinet door is opened or not through an electronic lock. The tool cabinet is also equipped with a two-dimensional code recognition module for identifying work order information, an IC card high-frequency recognition module for identifying personnel identity information, and a UHF ultra-high frequency recognition module for identifying tool information, which are connected to the central control system. The UHF ultra-high frequency recognition module achieves full coverage of wireless radio frequency signals in the cabinet by arranging UHF ultra-high frequency radio frequency antennas on the cabinet body and / or the cabinet door. The central control system controls the electromagnetic lock to open the cabinet door according to the recognition results of the QR code recognition module and the IC card high-frequency recognition module, and when it senses that the cabinet door is closed, it identifies the changes of tools in the tool cabinet through the UHF ultra-high frequency recognition module, and stores them correspondingly with the recognition results of the QR code recognition module and the IC card high-frequency recognition module.

2. The self-service tool cabinet for machine maintenance according to claim 1, characterized in that: The tool cabinet is also provided with a camera monitoring system, which includes a camera and a recorder, and the camera is connected to the recorder.

3. The self-service tool cabinet for machine maintenance according to claim 2, characterized in that: The camera is installed on the cabinet through a telescopic rod.

4. The self-service tool cabinet for machine maintenance according to claim 1, characterized in that: The cabinet door consists of a door frame and a transparent door panel.

5. The self-service tool cabinet for machine maintenance according to claim 1, characterized in that: The cabinet door is provided with a shelf for temporarily placing tools.

6. The self-service tool cabinet for machine maintenance according to claim 1, characterized in that: The user interaction terminal of the central control system, the two-dimensional code recognition module, and the IC card high-frequency recognition module are all arranged on the cabinet door.

7. The self-service tool cabinet for machine maintenance according to claim 1, characterized in that: The cabinet doors are swing doors that open side by side.

8. The self-service tool cabinet for machine maintenance according to claim 1, characterized in that: The cabinet is also divided into a faulty area, the faulty area is isolated from the tool storage area by signal, and an independent signal acquisition terminal is used to identify information of the tools in the area, and the acquisition terminal is also connected to the central control system.

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