JP2018067119A - Task instruction device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a user to easily refer to a task instruction corresponding to each tack when the worker performs a plurality of tasks.SOLUTION: A task instruction device comprises: a head mounted display device; an instruction acceptance unit which accepts an instruction relating to the start or end of a task as a gesture or speech; and a control unit which includes a storage unit in which a plurality of task instruction screens corresponding to a plurality of tasks respectively are stored, and causes the head mounted display device to display one of the plurality of task instruction screens stored in the storage unit and switches the task instruction screen displayed on the head mounted display device to another task instruction screen in response to an instruction accepted by the instruction acceptance unit.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a technique for presenting work instructions relating to the manufacture of a wire harness to an operator or the like.

  As disclosed in Patent Document 1, a wire harness mounted on a vehicle includes a step of crimping a terminal to an end portion of an electric wire, and a plurality of wire harnesses configured by inserting the end portion of a terminal-attached electric wire into a connector. The process of manufacturing temporary concatenation with a part of the electric wire as one unit, wiring the temporary conjoint on the wire harness assembly drawing board, inserting the end of the electric wire with terminal into the connector, or binding the electric wire It is manufactured through a number of processes such as processes and various inspection processes.

Japanese Patent Laid-Open No. 2006-18600

  By the way, in each process, the work performed by the worker is rich in diversity. For example, in the inspection process after the assembly of the wire harness is completed, it is necessary to inspect a number of locations such as the winding mode of the adhesive tape and the location where the corrugated tube is attached.

  In this case, for example, it is conceivable that a paper manual describing a large number of work instructions is prepared as a booklet for each work handled by each worker. The operator performs various operations in the operation process while turning each page of the manual.

  However, it is difficult to perform many operations while referring to a paper manual.

  Therefore, an object of the present invention is to make it possible to easily refer to work instructions corresponding to each work when the worker performs a plurality of work.

  In order to solve the above-described problem, a work instruction device according to a first aspect includes a head-mounted display device, an instruction receiving unit that receives an instruction regarding work start or work end by gesture or voice, and each of a plurality of works. A storage unit that stores a plurality of corresponding work instruction screens, and displays one of the plurality of work instruction screens stored in the storage unit on the head-mounted display device, and the instruction receiving unit And a control unit that switches the work instruction screen to be displayed on the head-mounted display device to another one in accordance with the instruction received in step (b).

  A second aspect is a work instruction device according to the first aspect, wherein a plurality of work instruction screens are stored in the storage unit together with a switching order, and the control unit receives an instruction received by the instruction receiving unit. Accordingly, the work instruction screen displayed on the head-mounted display device is switched to another one in accordance with the switching order.

  A third aspect is a work instruction device according to the first or second aspect, wherein the instruction receiving unit includes a voice input receiving unit that receives voice, and the control unit is connected via the voice input receiving unit. Based on the received voice input, the work instruction screen displayed on the head-mounted display device is switched to another one.

  A fourth aspect is the work instruction device according to any one of the first to third aspects, wherein at least one of the plurality of work instruction screens stored in the storage unit includes moving image data, and the control The unit displays a moving image based on the moving image data as at least one of the plurality of work instruction screens.

  A fifth aspect is the work instruction device according to any one of the first to fourth aspects, wherein the control unit displays at least one of the number of display times or the cumulative display time of the plurality of work instruction screens. This is stored in the storage unit as a history.

  According to the first aspect, since one of the plurality of work instruction screens is displayed on the head-mounted display device, the worker can easily perform work while referring to the work instruction screen. Further, when another work is continuously performed, the work instruction screen can be easily switched to another one, and the other work instruction screen can be easily referred to. For this reason, when the worker performs a plurality of operations, the operation instruction screen corresponding to each operation can be easily referred to.

  According to the second aspect, since the operator can sequentially switch the work instruction screen according to the work order, the worker can more easily refer to the work instruction screen corresponding to each work.

  According to the third aspect, the worker can switch the work instruction screen to be displayed on the head-mounted display device to another one by using a voice without using a hand or the like.

  According to the fourth aspect, the worker can refer to the work instruction by watching the moving image, and can easily understand the work content.

  According to the fifth aspect, by referring to the display history, it is possible to make use of it for analysis of easiness of understanding each work instruction screen, difficulty of work, and the like.

It is a schematic perspective view which shows a work instruction | indication apparatus. It is a block diagram which shows the electric constitution of a work instruction | indication apparatus. It is a figure which shows the example of a data structure regarding process instruction data. It is a figure which shows the relationship between the instruction | indication through a microphone and the gesture sensor 32, and a function. It is a flowchart which shows the display control process in a control unit. It is explanatory drawing which shows the work process example using a work instruction | indication apparatus. It is explanatory drawing which shows the work process example using a work instruction | indication apparatus. It is a figure which shows the example of a work instruction | indication screen. It is a figure which shows the example of a work instruction screen. It is a figure which shows the example of a work instruction | indication screen. It is a figure which shows the example of a work instruction | indication screen. It is a figure which shows the example of a work instruction | indication screen. It is a figure which shows the example of a display of a display history. It is a figure which shows the example of a display of a display history.

  The work instruction apparatus according to the embodiment will be described below. FIG. 1 is a schematic perspective view showing the work instruction device 20.

  The work instruction device 20 includes a head-mounted display device 22, a microphone 30 and a gesture sensor 32 as an instruction receiving unit, and a control unit 40.

  The head-mounted display device 22 includes a display unit 28, and is a device that can be mounted on the operator's head in a position and posture where the display unit 28 can be visually recognized by the operator.

  Here, the head-mounted display device 22 includes a housing part 24, an extension support part 26, and a display housing part 27.

  The housing part 24 is formed in a rectangular parallelepiped case shape, and is configured to be attachable to the temple 18 of the glasses 17. The housing | casing part 24 may be integrally fixed to the temple 18 of the spectacles 17, and may be attached so that attachment or detachment is possible. The casing unit 24 is also provided with an operation switch 24SW that receives an instruction.

  The extension support portion 26 extends from one end portion of the housing portion 24 toward the frame 19 that holds the lens 19 g along the extending direction of the temple 18. The distal end portion of the extension support portion 26 exceeds the lens 19g. The eyeglasses 17 may be provided with a lens 19g that is not included, such as protective eyeglasses for work.

  The display housing portion 27 extends from the distal end portion of the extension support portion 26 toward the front side of the one lens 19g. A display unit 28 composed of an opaque liquid crystal display device or the like is incorporated in a portion of the display housing unit 27 facing the lens 19g. The display screen of the display unit 28 occupies a part of the visual field of one eye of the worker wearing the glasses 17. For this reason, the worker can directly view the surrounding work range in the other range of the visual field while referring to the display unit 28.

  Here, an example in which the head-mounted display device 22 is a type that is mounted on the head by the glasses 17 will be described, but other types that are mounted by a hat, a helmet, a belt mounted on the head, or the like. It may be. A transmissive liquid crystal display device or the like may be used as the display unit.

  The instruction receiving unit is configured to be able to receive an instruction regarding work start or work end.

  The microphone 30 is configured to be able to receive an instruction regarding work start or work end by voice. In other words, the microphone 30 is a device that converts voice uttered by the worker into an electric signal, and the converted electric signal is input to the control unit 40. The microphone 30 is incorporated in the display housing unit 27, but may be incorporated in another location. The audio electrical signal output from the microphone 30 is input to the control unit 40, and the control unit 40 performs speech recognition processing through pattern matching processing and the like. The speech-recognized content is accepted as an instruction regarding work start or work end.

  The gesture sensor 32 is configured to be able to accept an instruction regarding work start or work end by gesture (hand movement). That is, the gesture sensor 32 is a device that detects a gesture of an operator's hand, and the detection signal is input to the control unit 40. Here, the gesture sensor 32 is incorporated in the outward side end portion of the display housing portion 27, and the hand approaches (see arrow M <b> 1) and the hand moves from the front to the rear along the temple 18. The gesture (see arrow M2) to be detected is configured to be detectable. As such a gesture sensor 32, a plurality of optical sensors are dispersed and unitized at least in the front-rear direction, and a gesture is detected based on an output change or the like of each optical sensor. A gesture of an object in a moving image captured by an imaging device. Various configurations including well-known configurations, such as a device for detecting stagnation, can be used.

  The control unit 40 is configured to be able to control display contents on the display unit 28. FIG. 2 is a block diagram showing an electrical configuration of the work instruction apparatus 20.

  The control unit 40 is configured by a general computer in which a CPU 42, a RAM 43, a storage unit 34, and the like are interconnected via a bus line 41. The storage unit 34 includes a nonvolatile storage device such as a flash memory or a hard disk device, and includes a basic program, a display program 34a, process I instruction data 34b1, process II instruction data 34b2, and process III instructions for each process. Data 34b3, display history 34c, and the like are stored. The display unit 28 is connected to the bus line 41 via the image signal input / output unit 45, and the microphone 30, the gesture sensor 32, and the operation switch 24 SW are connected to the bus line 41 via the input / output unit 46. ing. Further, the external communication input / output unit 47 is also connected to the bus line 41, and through other computers or the like, setting of the instruction data 34b1, 34b2, 34b3 of each process in the control unit 40, input, extraction of the display history 34c, etc. Can be done. The external communication input / output unit 47 may be a wired communication interface or a wireless communication interface.

  The process I instruction data 34b1, the process II instruction data 34b2, and the process III instruction data 34b3 are instruction data for work set for each of the plurality of processes I, II, and III for manufacturing the wire harness. As will be described later, the process I instruction data 34b1 includes a plurality of work instruction data corresponding to a plurality of works included in a certain process. The display program 34 a is a program that stores a command to be displayed on the display unit 28 in accordance with an instruction input through the microphone 30 or the gesture sensor 32. The control unit 40 executes arithmetic processing in accordance with a command described in the display program 34a, so that a work instruction screen corresponding to one of the plurality of work instruction data stored in the storage unit 34 is mounted on the head. A work instruction screen to be displayed on the head-mounted display device 22 in accordance with an instruction received by the microphone 30 and the gesture sensor 32 according to the other one of the work instruction data. The process to switch to is executed.

  FIG. 3 is a diagram showing a data structure example relating to the process I instruction data 34b1, the process II instruction data 34b2, and the process III instruction data 34b3. In FIG. 3, the instruction screen 1 is stored in association with the work having the work number 0001 included in the process I, the instruction screen 2 is stored in association with the work having the work number 0002, and the work having the work number 0003 is performed. Is stored in association with the instruction screen 3. In addition, the instruction screen 11 is stored in association with the work of the work number 1001 in the process II, and the instruction screen 12 is stored in association with the work of the work number 1002. In addition, an instruction screen 31 is stored in association with the work of work number 2001 in step III. Each instruction screen 1, 2, 3, etc. is a screen representing the associated work instruction, and is stored in the form of still image data or moving image data. An example of the instruction screen will be described later.

  FIG. 4 is a diagram illustrating a relationship between an instruction through the microphone 30 and an instruction through the gesture sensor 32 and a function.

  When the display unit 28 is controlled by the control unit 40, each function shown in the left column of FIG. 4 is executed. The “call” function is assigned the voice “menu”, the “number” function is assigned the voice “(number)” (calling the above work number), and the “next number” function Is assigned the voice “next” and approach movement gesture (arrow M1 in FIG. 1), the voice “return” is assigned to the “previous number” function, and the “playback stop” function is assigned. The voice “stop” and the gesture to move backward (arrow M2 in FIG. 1) are assigned.

  FIG. 5 is a flowchart showing display control processing in the control unit.

  After the process starts, in step S1, the control unit 40 causes the display unit 28 to display an initial instruction screen. The initial instruction screen is the first instruction screen of the process at the time of the previous processing (for example, the instruction screen 1 corresponding to the work number 0001 when the instruction screen regarding the process I was displayed at the time of the previous processing). It may be an instruction screen that was last displayed during the previous processing.

  In the next step S2, it is determined whether or not a work number has been input. For example, after the operator utters “menu”, the work number is input by speaking the work number corresponding to one of the instruction screens, and the content of these utterances is input to the control unit 40 through the microphone 30 as an electrical signal. This is done by voice recognition. If it is determined in step S2 that the work number has been input, the process proceeds to step S3. If it is determined that the work number has not been input, the process proceeds to step S4.

  In step S3, the control unit 40 causes the display unit 28 to display an instruction screen corresponding to the input work number, and then proceeds to next step S4.

  In step S4, it is determined whether there is an instruction to proceed to the next number. The instruction to proceed to the next number is, for example, after the operator utters “next”, the control unit 40 performs voice recognition of the utterance content, or the operator moves the gesture backward, This is done either by the control unit 40 recognizing it. If it is determined in step S4 that there is an instruction to proceed to the next number, the process proceeds to step S5. If it is determined that there is no instruction to proceed to the next number, the process proceeds to step S6.

  That is, the storage unit 34 stores a plurality of instruction screens 1, an instruction screen 2, and an instruction screen 3 together with a switching order (numbers 0001, 0002, and 0003), and the control unit 40 responds to the received instructions. The instruction screen 1, the instruction screen 2, and the instruction screen 3 displayed on the display unit 28 are switched to one of them according to the switching order.

  In step S5, the control unit 40 causes the display unit 28 to display an instruction screen having a number next to the number of the instruction screen currently being displayed, and then proceeds to next step S6.

  In step S6, it is determined whether or not there is an instruction to return the number. The instruction to return the number is made, for example, when the control unit 40 recognizes the content of the utterance after the operator utters “return”. If it is determined in step S6 that there is an instruction to return the number, the process proceeds to step S7. If it is determined that there is no instruction to return the number, the process returns to step S2.

  In step S7, the control unit 40 causes the display unit 28 to display an instruction screen having a number preceding the number of the instruction screen currently being displayed, and then returns to next step S2.

  When the instruction screen includes a moving image, the reproduction of the moving image may be stopped when a reproduction stop instruction is given by the operator during the above process. For example, after the operator utters “stop”, the control unit 40 recognizes the voice of the utterance content, or the operator performs an approach gesture, and the control unit 40 recognizes this. It is done by either. After the reproduction of the moving image is stopped, each of the above processes is repeated, and a YES determination is made in any of steps S2, S4, and S6, whereby the above processes can be continued.

  Further, when switching the instruction screen, the control unit 40 updates the display history 34 c including the display screen display count and the cumulative display time and stores the updated display history 34 c in the storage unit 34. An administrator or the like of the work instruction apparatus 20 can read the display history to a personal computer or the like and display it. A display history display example will be described later.

  An example in which an operator performs work using the work instruction device 20 will be described together with an example of an instruction screen. In this example, an example in which the worker P inspects the manufactured wire harness WH will be described.

  That is, as shown in FIG.6 and FIG.7, the wire harness WH with which the wire harness WH was manufactured on the test | inspection board 10 is set. The wire harness WH is obtained by bundling a plurality of electric wires while branching along an arrangement route in the vehicle. A connector 11 is attached to the branch end of each electric wire. With the wire harness WH assembled to the vehicle, each connector 11 is connected to various electrical components mounted on the vehicle. Thereby, wire harness WH is used as a wiring material which electrically connects various electric components. After the wire harness WH is manufactured, various inspections are performed. Here, an example in which the protector 12 is attached, the identification label 13 is attached, and the adhesive tape 14 is wound is described.

  In a state where the wire harness WH is set on the inspection board 10, the worker P sets the work instruction device 20 on the head and performs the inspection work of the wire harness WH. As inspection work, inspection work 1 (work number 0001) for the attachment position P1 of the protector 12, inspection work 2 (work number 0002) for the attachment position P2 of the identification label 13, and inspection work 3 for the attachment position P3 of the adhesive tape 14 ( Work number 0003).

  In the initial state where the worker P performs the inspection work, as shown in FIG. 8, the instruction screen 1 corresponding to the work number 0001 is displayed on the display unit 28. On this instruction screen 1, an image indicating the inspection point when the protector 12 is attached is displayed together with a display indicating that the inspection is “OK” and a work number “0001”. In FIG. 8, the upper image shows the correct position of the end position of the adhesive tape wound to fix the protector 12 to the wire harness WH, and the characters “tape end position” are also displayed as inspection points. ing. In FIG. 8, the lower image shows the correct state of the left and right lock parts of the protector 12 (the left and right lock parts are locked), and the text “Confirm lock (with left and right)” is also displayed as the inspection point. Has been. Each of these images is an image obtained by actually capturing a normal part, but may be an image shown by an illustration. The operator P refers to the instruction screen 1 displayed on the display unit 28 to confirm the inspection location and the normal state, and the position of the end of the adhesive tape at the attachment position P1 and the left and right locks. It can be checked whether the part is locked correctly.

  The instruction screen 1 preferably includes a moving image in order to display the inspection points in an easily understandable manner for the worker P. For example, as shown in FIG. 9, after the upper image indicating the correct position of the end position of the adhesive tape is displayed, the lower image indicating the correct state of the left and right lock portions of the protector 12 may be displayed. . Moreover, as shown in FIG. 10, after displaying the screen which shows the correct attachment state of the protector 12, you may display the screen which shows the case where the attachment state of the protector 12 is abnormal. In the example shown in FIG. 10, when the position of the end of the adhesive tape 14 is insufficient as the upper image (when it is not wrapped around the electric wire), the left lock portion is displayed as the lower image. Indicates a state that is not normally locked.

  The moving image only needs to change the content to be displayed, and includes the case where the display content is changed to another content as described above. In addition, the moving image may be displayed as an animated moving image where attention should be paid to the inspection location. Moreover, you may make it display what image | photographed the work content as a moving image as a moving image.

  In addition, a voice instruction may be given simultaneously with the display of the instruction screen 1.

  When the instruction screen 1 is reproduced as a moving image, if the worker P thinks that the work content is difficult to understand, the reproduction stops if he speaks “stop” or makes a gesture to move backward. To do. Alternatively, if the worker P utters “Menu” and then the worker utters “0001”, the instruction screen 1 is reproduced from the beginning.

  The instruction screen as described above can be created using, for example, various presentation programs.

  When the worker P finishes the inspection at the position P1, the worker P speaks “next” or performs an approach movement gesture. Then, as shown in FIG. 11, an instruction screen 2 corresponding to the next work sequence (position P2) is displayed.

  The instruction screen 2 displays a work number “0002”. In addition, on the left side of the instruction screen 2, an image indicating “OK” is displayed and an image indicating the correct attachment state of the identification label 13 is displayed, and characters “numbers are visible” are also displayed as inspection points. Further, on the right side of the instruction screen 2, “NG” is displayed together with an image indicating an abnormal mounting state of the identification label 13, and characters “number hidden” are also displayed as inspection points. For this reason, the worker P can normally attach the identification label 13 at the attachment position P2 while referring to the instruction screen 2 displayed on the display unit 28 while confirming the inspection location and the normal state. It can be checked whether or not.

  When the operator P utters “Return” when he / she wants to redo the inspection at the position P1 during the inspection at the position P2, the instruction screen 1 is displayed on the display unit 28. Therefore, the inspection at the position P1 can be redone while referring to the instruction screen 1.

  When the worker P finishes the inspection at the position P2, the worker P speaks “next” or performs an approach movement gesture. Then, as shown in FIG. 12, an instruction screen 2 corresponding to the next work sequence (position P3) is displayed.

  The instruction screen 3 displays a work number “0003”. Further, on the upper side of the instruction screen 2, an image indicating “OK” is displayed together with an image indicating a correct attachment state of the adhesive tape 14, and a character “Half-wrapped” is also displayed as an inspection point. Further, on the lower side of the instruction screen 2, “NG” is displayed and an image indicating an abnormal attachment state of the adhesive tape 14 is displayed, and “exposed” characters are also displayed as an inspection point. For this reason, the worker P refers to the instruction screen 3 displayed on the display unit 28, and the adhesive tape 14 at the attachment position P3 is normally attached while checking the inspection location and the normal state. It can be checked whether or not.

  The display history 34c on which the instruction screens 1, 2, and 3 are displayed as described above is stored in the storage unit 34, and the administrator of the apparatus checks the display history 34c by downloading it to a computer or the like. be able to.

  FIG. 13 is a bar graph showing the number of displays for each of the instruction screens 1 to 3 (work numbers 0001 to 0003), and FIG. 14 is a bar graph showing the accumulated display time for each of the instruction screens 1 to 3 (work numbers 0001 to 0003). It is.

  The administrator or the like of the work instruction apparatus 20 can estimate the ease of understanding of each instruction screen 1 to 3, the difficulty level of each work, and the like by confirming the display history in a graph format or the like. For example, it may be assumed that an instruction screen (work number) with a large number of display times or a long accumulated display time indicates that the instruction screens 1 to 3 are difficult to understand or work is difficult. it can.

  According to the work instruction device 20 configured as described above, since one of the plurality of work instruction screens is displayed on the display unit 28 of the head-mounted display device 22, the worker P It is easy to work while referring to. Further, when another work is subsequently performed, the work instruction screen can be easily switched to another one through the microphone 30 or the gesture sensor 32. When the worker P performs a plurality of works, the work instruction screen corresponding to each work can be easily referred to.

  The storage unit 34 stores a plurality of work instruction screens 1 to 3 together with a switching order (numbers 0001 to 0003), and the control unit 40 displays a display unit according to an instruction received by the microphone 30 or the gesture sensor 32. The work instruction screens 1 to 3 displayed on the screen 28 are switched to another one in accordance with the switching order. For this reason, the worker P can easily and sequentially switch the work instruction screens 1 to 3 according to the work order. For this reason, the worker P can easily refer to the work instruction screens 1 to 3 according to each work.

  In addition, the voice is received through the microphone 30, and the control unit 40 switches the work instruction screens 1 to 3 to be displayed on the display unit 28 to another one based on the voice input received through the microphone 30. For this reason, the worker P can easily switch the work instruction screens 1 to 3 to be displayed on the display unit 28 to another one by emitting a sound without using a hand or the like. Can be implemented smoothly.

  In addition, the work instruction screen 1 includes moving image data, and the moving image data is reproduced on the display unit 28. Therefore, the worker P can recognize the work instruction by watching the moving image, and easily perform the work contents. Can understand.

  Further, the storage unit 34 stores the display count and the accumulated display time of each of the plurality of work instruction screens 1 to 3 as a display history. For this reason, by referring to the display history, it is possible to use it for analysis of the ease of understanding of each of the work instruction screens 1 to 3 and the difficulty level of the work. Note that it is not essential to store both the display count and the cumulative display time of each of the plurality of work instruction screens 1 to 3 as the display history, and only one of them may be stored.

{Modifications}
In the said embodiment, although demonstrated using the example which used the work instruction | indication apparatus for the test | inspection process, it applies to various processes performed manually, such as the process of manufacturing the wire harness WH on a drawing board, the crimping | compression-bonding process of a terminal Is possible.

  In addition, each structure demonstrated in the said embodiment and each modification can be suitably combined unless it mutually contradicts.

  As described above, the present invention has been described in detail. However, the above description is illustrative in all aspects, and the present invention is not limited thereto. It is understood that countless variations that are not illustrated can be envisaged without departing from the scope of the present invention.

DESCRIPTION OF SYMBOLS 17 Glasses 20 Work instruction | indication apparatus 22 Head-mounted display apparatus 28 Display part 30 Microphone 32 Gesture sensor 34 Memory | storage part 34a Display program 34b1 Process I instruction data 34b2 Process II instruction data 34b3 Process III instruction data 34c Display history 40 Control unit WH Wire Harness

Claims (5)

A head-mounted display device;
An instruction receiving unit that receives an instruction regarding work start or work end by gesture or voice;
A storage unit storing a plurality of work instruction screens corresponding to each of the plurality of tasks, and causing the head-mounted display device to display one of the plurality of work instruction screens stored in the storage unit And a control unit that switches the work instruction screen to be displayed on the head-mounted display device according to an instruction received by the instruction receiving unit to another one,
A work instruction device comprising: The work instruction device according to claim 1,
In the storage unit, a plurality of work instruction screens are stored together with a switching order,
The control unit switches the work instruction screen to be displayed on the head-mounted display device according to an instruction received by the instruction receiving unit to another one according to the switching order. The work instruction device according to claim 1 or 2,
The instruction receiving unit includes a voice input receiving unit that receives voice,
The said control unit is a work instruction apparatus which switches the said work instruction screen displayed on the said head mounted display apparatus to another one based on the audio | voice input received via the audio | voice input reception part. The work instruction device according to any one of claims 1 to 3,
At least one of the plurality of work instruction screens stored in the storage unit includes moving image data,
The control unit displays a moving image based on the moving image data as at least one of the plurality of work instruction screens. The work instruction device according to any one of claims 1 to 4, wherein
The said control unit is a work instruction | indication apparatus which memorize | stores in the said memory | storage part as display history at least one of the display frequency of these work instruction | indication screens, or accumulation display time.

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