JP2014092763A - Electronic equipment and image forming apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To control operation of an operation mechanism according to body height of an operator, while improving accuracy of measuring the body height of the operator.SOLUTION: An image forming apparatus 1 includes: an operator detection sensor 50; an imaging apparatus 80, a body height calculation part 101 which calculates body height of an operator at every predetermined time on the basis of height of an operator image in an image captured by the imaging apparatus 80; a body height storage part 102 which stores the calculated body height H of the operator; an average value calculation part 103 which calculates an average value Hmv of the calculated body height H of the operator and body heights H stored in advance, and stores it in the body height storage part 102; and a control part 100 which causes an operation mechanism to perform operation according to the average value Hmv of the body height by use of the body height average value Hmv stored in the body height storage part 102 when a distance R measured by the operator detection sensor 50 becomes equal to or less than a threshold.

Description

  The present invention relates to an electronic apparatus and an image forming apparatus, and more particularly to a technique for controlling operations according to the height of an operator.

  Some electronic apparatuses, for example, image forming apparatuses, provide a comfortable operating environment in accordance with the arrival of an operator at the image forming apparatus. For example, in Patent Document 1 below, an image forming apparatus supported by a plurality of support columns is movable up and down, and an operator who has requested printing from the network-connected computer or the like approaches the image forming apparatus. In some cases, an image forming apparatus is shown in which the image forming apparatus is lowered to a height at which the operator can take out the ejected sheet by the elevating drive unit on the condition that the operator is an operator registered in advance.

Japanese Patent Application No. 2006-91814

  However, the image forming apparatus disclosed in Patent Document 1 moves up and down the image forming apparatus when an operator approaching the image forming apparatus is a registered operator mainly from the viewpoint of ensuring security. The height position of the image forming apparatus is not adjusted according to the height of the operator. Further, when controlling the operation mechanism according to the height of the operator as described above, the operation control according to the height of the operator is performed after improving the accuracy of the height measurement of the operator. Is required.

  The present invention has been made to solve the above-described problem, and has an object to improve the accuracy of the height measurement of the operator and control the operation of the operation mechanism according to the height of the operator. And

An electronic device according to one aspect of the present invention includes a distance measuring unit that measures a distance from the electronic device to the operator,
An imaging unit for imaging the operator;
A height calculation unit that calculates the height of the operator based on the height of the operator image indicating the operator in the captured image captured by the imaging unit at a predetermined time;
A height storage unit for storing the height of the operator calculated by the height calculation unit;
The average value is calculated using the height of the operator newly calculated by the height calculation unit and the height already stored in the height storage unit, and stored in the height storage unit. And
Using the height average value stored in the height storage unit when the distance measured by the distance measurement unit becomes equal to or less than a predetermined threshold value, an operation corresponding to the height is performed on the operation mechanism. And a control unit.

  According to the present invention, it is possible to control the operation of the operation mechanism in accordance with the height of the operator while improving the accuracy of measuring the height of the operator.

1 is a front sectional view showing a structure of an image forming apparatus according to an embodiment of the present invention. 2 is a functional block diagram illustrating a main internal configuration of the image forming apparatus. FIG. (A) is a front view showing the arrangement of an operator detection sensor and an imaging device in the image forming apparatus, and (B) is a side view showing operator detection by the operator detection sensor. (A) is a side view showing the imaging of the operator by the imaging device, (B) is a diagram showing an image obtained by imaging the operator at each position shown in (A) by the imaging device. 6 is a flowchart illustrating processing for measuring an operator's height in the image forming apparatus and controlling operation of the image forming apparatus according to the measured height. 6 is a flowchart illustrating processing for measuring an operator's height in the image forming apparatus and controlling operation of the image forming apparatus according to the measured height. (A) and (B) are figures which show an example of a captured image.

  Hereinafter, an electronic apparatus and an image forming apparatus according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a front sectional view showing the structure of an image forming apparatus according to an embodiment of the present invention.

  An image forming apparatus 1 that is an embodiment of an electronic apparatus according to the present invention includes an operator identification device, and includes, for example, a multifunction peripheral having a plurality of functions such as a copy function, a printer function, a scanner function, and a facsimile function. It is. The image forming apparatus 1 includes an operation unit 47, an image forming unit 12, a fixing unit 13, a paper feeding unit 14, a feeding device 3, a document feeding unit 6, a document reading unit 5, and the like in the apparatus main body 11. Has been.

  The operation unit 47 receives instructions such as an image forming operation execution instruction and a document reading operation execution instruction from the operator regarding various operations and processes that can be executed by the image forming apparatus 1. The operation unit 47 includes a display unit 473 formed of an LCD (Liquid Crystal Display) or the like.

  When the image forming apparatus 1 performs a document reading operation, the document reading unit 5 optically reads a document fed by the document feeding unit 6 or a document placed on the document placing glass 161, Generate image data. Image data generated by the document reading unit 5 is stored in a built-in HDD or a network-connected computer.

  When the image forming apparatus 1 performs an image forming operation, it is based on image data generated by the document reading operation, image data received from a computer connected to a network, image data stored in a built-in HDD, or the like. Then, the image forming unit 12 forms a toner image on the recording paper S as a recording medium fed from the paper feeding unit 14. When performing color printing, the magenta image forming unit 12M, the cyan image forming unit 12C, the yellow image forming unit 12Y, and the black image forming unit 12Bk of the image forming unit 12 respectively A toner image is formed on the photosensitive drum 121 by charging, exposure, and development processes based on an image composed of each color component constituting data, and the toner image is formed on the intermediate transfer belt 125 by the primary transfer roller 126. Let them transcribe.

  The toner images of the respective colors transferred onto the intermediate transfer belt 125 are superimposed on the intermediate transfer belt 125 with the transfer timing adjusted to form a color toner image. The secondary transfer roller 210 passes the toner image of the color formed on the surface of the intermediate transfer belt 125 from the paper supply unit 14 through the conveyance path 190 at a nip N between the intermediate transfer belt 125 and the driving roller 125a. It is transferred to the recording paper S that has been conveyed. Thereafter, the fixing unit 13 fixes the toner image on the recording paper S to the recording paper S by thermocompression bonding. The recording paper S on which the color image has been formed after the fixing process is completed is discharged to a discharge tray 151.

  The feeding device 3 is a paper feeding mechanism that is optionally attached to the image forming apparatus 1. The feeding device 3 is attached to the side of the apparatus main body 11, for example, the right side in FIG. 1, picks up recording sheets one by one, and feeds the recording paper toward the image forming unit 12 of the apparatus main body 11.

  In the image forming apparatus 1, when performing double-sided printing, the recording paper S on which one image is formed by the image forming unit 12 is nipped by the discharge roller pair 159, and then the recording paper S is switched back by the discharge roller pair 159 and sent to the reverse conveyance path 195, and the conveyance roller pair 19 conveys the recording sheet S to the upstream area in the conveyance direction with respect to the nip portion N and the fixing unit 13. As a result, an image is formed on the other surface of the recording paper by the image forming unit 12.

  The image forming apparatus 1 further includes a post-processing device 60. The post-processing device 60 performs, as post-processing, a punch unit that performs a punching process, a stapling unit that performs a stapling process on the paper, and a recording sheet. A book binding unit for folding the book in the center and binding the book, and the recording paper that has been transported from the apparatus body 11 by being moved up and down by a lifting mechanism (not shown) and the post-processing of the punching process or the stapling process are finished. A mail box 62 including a plurality of bins 622 from which the recording paper is discharged, and a main discharge tray 623 are provided.

  The lifting / lowering unit 605 is configured such that the mail box 62 and the main discharge tray 623 are positioned at a reference position suitable for discharging the sheet bundle from the discharge roller pair 607 in accordance with a control signal from the control unit 100 (FIG. 2). Next, the mail box 62 and the main discharge tray 623 are moved up and down.

  An operator detection sensor (distance measuring unit) 50 and an imaging device (imaging unit) 80 are installed in the vicinity of the center position on the front surface of the image forming apparatus 1 at an appropriate height position.

  In this embodiment, the operator detection sensor 50 includes an optical sensor, detects an operator located in front of the image forming apparatus 1, and detects the operator from the attachment position of the operator detection sensor 50 in the image forming apparatus 1. Measure the distance to.

  In this embodiment, the imaging device 80 includes a CCD camera, and images an operator located in front of the image forming apparatus 1.

  FIG. 2 is a functional block diagram showing the main internal configuration of the image forming apparatus 1. The image forming apparatus 1 includes a control unit 10, an operation unit 47, a document feeding unit 6, a document reading unit 5, an image processing unit 31, an image memory 32, an image forming unit 12, a fixing unit 13, a drive motor 70, and a facsimile communication unit. 71, a network interface unit 91, an HDD 92, an imaging device 80, an operator detection sensor 50, and the like.

  The control unit 10 includes a CPU (Central Processing Unit), a RAM, a ROM, a dedicated hardware circuit, and the like, and controls overall operation of the image forming apparatus 1. The control unit 10 includes a control unit 100, a height calculation unit 101, a height storage unit 102, an average value calculation 103, a login processing unit 104, an operator information storage unit 105, and a height storage unit 106.

  The control unit 100 includes an operation unit 47, a document feeding unit 6, a document reading unit 5, an image processing unit 31, an image memory 32, an image forming unit 12, a fixing unit 13, a drive motor 70, a facsimile communication unit 71, and a network interface unit. 91, HDD 92, operator detection sensor 50, imaging device 80, drive unit 90, and the like, and drive control of these units is performed.

  The height calculation unit 101 calculates the height of the operator based on the height of the operator indicated by the captured image captured by the imaging device 80 at predetermined times (details will be described later).

  The height storage unit 102 includes, for example, a memory built in the control unit 10, and stores the height of the operator calculated by the height calculation unit 101. Further, the height storage unit 102 stores the height average value calculated by the average value calculation unit 103.

  Each time the height calculation unit 101 calculates the height of the operator, the average value calculation unit 103 includes the newly calculated height and each height already stored in the height storage unit 102 so far. An average height value (hereinafter referred to as a height average value) is calculated, and the calculated height average value is stored in the height storage unit 102.

  Note that the control unit 100 uses the height average value stored in the height storage unit 102 when the distance measured by the operator detection sensor 50 is equal to or less than a predetermined threshold value, to determine the height. An operation according to the average value is performed by an operation mechanism provided in the image forming apparatus 1. In the present embodiment, the control unit 100 moves the discharge tray 622 and the main discharge tray 623 up and down to a height corresponding to the height average value stored in the height storage unit 102 using the lifting unit 605 as the operation mechanism. Take control.

  The predetermined threshold is based on the captured image captured by the image capturing device 80, and the image forming apparatus up to the operator at a position where the height of the operator cannot be detected by the height calculating unit 101 is assumed. For example, 30 cm is used.

  The login processing unit 104 receives login information including an operator ID and / or password input from the operator to the operation unit 47 and performs login processing. Upon receiving the login information, the login processing unit 104 determines whether the login information matches the regular login information registered in advance. If the login information matches, the login authentication unit 104 permits the operator to log in. I do.

  The operator information storage unit 105 stores operator information related to an operator who is permitted to log in by the login processing unit 104.

  The height storage unit 106 uses the height and height average value stored in the height storage unit 102 when the distance measured by the operator detection sensor 50 is equal to or less than the threshold as the operator information at this time. The login processing unit 104 stores the information in the operator information storage unit 105 in association with the operator permitted to log in.

  Next, operator detection by the operator detection sensor 50 and imaging of the operator by the imaging device 80 will be described. 3A is a front view showing the arrangement of the operator detection sensor 50 and the imaging device 80 in the image forming apparatus 1, and FIG. 3B is a side view showing operator detection by the operator detection sensor 50. FIG. 4A is a side view showing imaging of an operator by the imaging device 80, and FIG. 4B is a diagram showing an image obtained by imaging the operator 200 at each position shown in FIG.

  As shown in FIG. 3A, the operator detection sensor 50 and the imaging device 80 are arranged near the center position in the left-right direction on the front surface portion of the image forming apparatus 1.

  The operator detection sensor 50 includes a light emitting unit 501 and a light receiving unit 502. The light emitting unit 501 includes an LED (Light Emitting Diode) or the like, and irradiates light to the front front of the image forming apparatus 1. The light receiving unit 502 includes a photodiode or the like. The light receiving unit 502 receives the reflected light reflected by the operator 200 from the light emitted from the light emitting unit 501 with respect to the operator 200 positioned in front of the image forming apparatus 1. When receiving the reflected light, the light receiving unit 502 outputs an operator detection signal indicating the presence of the operator to the control unit 100.

  The light receiving unit 502 measures the time from when the light emitting unit 501 emits light to when the reflected light is received by a built-in timer or the like, and information indicating the measured time is detected by the operator of the image forming apparatus 1. The distance information indicating the distance from the sensor 50 to the operator is output to the control unit 100. Note that the light receiving unit 502 does not receive the reflected light when the operator 200 is not positioned in front of the image forming apparatus 1, and therefore does not perform the operator detection and distance measurement.

  The imaging of the operator by the imaging device 80 will be described. The imaging device 80 starts imaging when the control unit 100 receives the operator detection signal from the light receiving unit 502 of the operator detection sensor 50. The imaging device 80 outputs the captured imaging data to the height calculation unit 101 of the control unit 10 every predetermined time t (for example, 0.5 seconds) from this operator detection time point.

  For example, when the operator 200 moves closer to the operation unit 47 on the front surface of the image forming apparatus 1 and the operator 200 moves from the position p2 shown in FIG. 4A to the position p1 in the predetermined time, The imaging device 80 images the operator 200 at each position. In this case, the captured images at the positions p1 and p2 are the captured image im2 of the operator 200 at the position p1 and the captured image im2 of the operator 200 at the position p2, as shown in FIG. 4B.

  The operator image indicating the operator 200 in the image captured by the imaging device 80 is above the operator image and as shown in the captured image im2 when the operator 200 is separated from the image forming apparatus 1 by a certain distance. There is an image other than the operator image on the side. However, as the operator 200 approaches the image forming apparatus 1, the operator image in the captured image becomes larger. When the operator 200 is too close to the image forming apparatus 1, the head portion of the operator 200 is moved to the imaging apparatus 80. The operator image located outside the imaging region and in the captured image is an image showing only a part of the trunk of the operator 200. In this case, in the captured image, there is no image other than the operator image above the operator image, and there are few or no images other than the operator image on the side of the operator image.

  In the present embodiment, the height calculation unit 101 detects an operator image included in each captured image obtained in this way. The height calculation unit 101 stores in advance a standard image showing a person's shape, for example, an image corresponding to the upper body including the person's head in the built-in memory of the control unit 10 or the like. The height calculation unit 101 extracts an operator image portion indicating the operator 200 from each captured image by pattern matching using the standard image, for example. As shown in the captured image im2 in FIG. 4B, when an operator including a head is present in the captured image, the operator image can be detected by the pattern matching by the height calculation unit 101.

  If the height calculation unit 101 can detect the operator image from the captured image, the captured image of FIG. 4B is captured at the height hd of the captured image and the captured image from the upper end of the captured image as illustrated in the image im2. The upper distance hu to the upper end of the captured image, the left distance sl from the left edge of the captured image to the left edge of the captured image, the right distance sr from the right edge of the captured image to the right edge of the captured image Is detected. Further, the height calculation unit 101 stores the information indicating the vertical width HrU of the imaging region by the imaging device 80 and the height HrD from the ground up to the bottom of the imaging region shown in FIG. Pre-stored in a memory or the like. The vertical width HrU is a value indicating which height region the imaging device 80 is actually imaging, that is, the height from the bottom of the imaging region of the imaging device 80 by the imaging device 80. This is the distance from the top of the imaging area to the height. These vertical width HrU (cm) and height HrD (cm) are numerical values determined in advance from the distance R detected by the operator detection sensor 50, the performance and imaging capability of the imaging device 80, and the like. Stored in the height calculation unit 101 by one manufacturer or the like.

  In the present embodiment, the height calculation unit 101 detects the height hd, the distance hu, the distance sl, and the distance sr of the image captured by the image capturing device 80 using the number of pixels of the captured image.

  When the height calculation unit 101 extracts an operator image from the captured image captured by the imaging device 80 by the pattern matching, as shown in the captured image im2 in FIG. The number of pixels arranged in the vertical direction from the lower end to the uppermost end is defined as height hd, and the number of pixels arranged in the vertical direction from the uppermost end of the extracted operator image to the upper end of the captured image is defined as the upper distance hu. The number of pixels lined up from the leftmost edge of the extracted operator image to the left edge of the captured image in the horizontal direction (scanning direction of pixels) is the left distance sl, and the rightmost of the extracted operator image The number of pixels arranged in the horizontal direction (scanning direction in which pixels are arranged) from the end located at the right end of the captured image is defined as a right distance sr.

  Then, the height calculation unit 101 calculates the height H of the operator using the following equation (1). The height calculation unit 101 stores the distance R (indicating the distance from the image forming apparatus 1 to the operator 200) acquired from the operator detection sensor 50 when the height H is calculated, together with the calculated height H. The height calculating unit 101 calculates the height H of the operator using the height hd, the upper distance hu, the vertical width HrU of the imaging region, and the height HrD among the above values. At this time, the height calculation unit 101 uses the vertical width HrU and height HrD of the imaging region stored in association with each distance R detected by the operator detection sensor 50.

Height H = Height hd / (Upper distance hu + Height hd) * Vertical width HrU + Height HrD of the imaging area (1)
Next, an angle adjustment process of the operation unit 47 according to the height of the operator 200 in the image forming apparatus 1 will be described. 5 and 6 are flowcharts showing the height measurement of the operator 200 in the image forming apparatus 1 and the operation control processing of the image forming apparatus 1 according to the measured height.

  When an operator 200 intends to input a job to the image forming apparatus 1, the operator 200 receives the operator authentication by the login processing unit 104 by inputting login information to the operation unit 47 as necessary, and the image forming apparatus 1. Log in to In the following description, it is assumed that a copy job is input to the image forming apparatus 1 by the operator.

  Further, the operator 200 moves the main discharge tray 623 and the discharge tray 622 from which the image-formed recording paper has been discharged to the height H of the operator 200 by the lifting / lowering unit 605 by operating the operation unit 47 as necessary. An execution instruction for performing an automatic discharge height setting operation for moving to a corresponding height position is input.

  When the image forming apparatus 1 is operating, the control unit 100 activates the operator detection sensor 50 and causes the operator detection sensor 50 to detect the operator 200. The control unit 100 waits until the operator detection sensor 50 detects the operator 200 and outputs an operator detection signal (NO in S1).

  Here, when the operator detection sensor 50 detects the operator 200 and the control unit 100 receives an operator detection signal from the operator detection sensor 50 (YES in S1), the average value calculation unit 103 is the height storage unit. The height average value Hmv stored in 102 is cleared and rewritten to the initial value 0 (S2). The control unit 100 causes the imaging device 80 to image the front front area of the image forming apparatus 1 and the operator 200 at this position (S3).

  Subsequently, the height calculation unit 101 obtains distance information indicating the distance R from the image forming apparatus 1 to the operator 200 detected by the operator detection sensor 50 at this time from the operator detection sensor 50, and the current distance R Is less than or equal to a predetermined threshold value (S4).

  If the height calculation unit 101 determines that the distance R exceeds the threshold (NO in S4), the height calculation unit 101 acquires a captured image from the imaging device 80, and as described above, the operator's height H, left The distance sl and the rightward distance sr are calculated, and in addition, the distance R at the time of capturing the captured image is stored in a built-in memory or the like (S5).

  Here, when the average value calculation unit 103 determines that both the left distance sl and the right distance sr are equal to or greater than a predetermined threshold (YES in S6), the average value calculation unit 103 calculates the height. Using the height H of the operator calculated by the unit 101 in S5 and each height H already stored in the height storage unit 102 at this time, an average value Hmv is calculated and stored in the height storage unit 102. Save (S8). Thereafter, the process returns to S4. Here, the predetermined threshold value is, for example, an operation in a state in which the operator image occupies most of the captured image and it is highly likely that the operator 200 is too close to the image forming apparatus 1. These are predetermined leftward distance sl and rightward distance sr that at least exceed the distance from the side edge of the person image to the side edge of the captured image.

  In S6, when the average value calculation unit 103 determines that both the left distance sl and the right distance sr do not satisfy the condition that the threshold value is greater than or equal to the threshold (NO in S6), the left distance sl or It is determined whether any one of the right distances sr is equal to or greater than the threshold value (S9).

  If the average value calculation unit 103 determines that either the left distance sl or the right distance sr is greater than or equal to the threshold value (YES in S9), each position in the horizontal axis direction (horizontal direction) of the captured image The height indicated by the operator image is detected (S10). The average value calculation unit 103 extracts image portions in which the height of the operator image in the horizontal axis direction is within a predetermined range, and when there are a plurality of the image portions, The average height is detected as the height indicated by the operator image. The predetermined range is a numerical value indicating an area where the height may be uniform.

  Here, when the average value calculation unit 103 detects a plurality of the image portions and the average heights of the image portions are different (YES in S11), the process proceeds to S8, and the average value calculation unit 103 determines that the current time is S5. Processing for calculating and storing the average height Hmv using the newly calculated height H is performed (S8).

  As described above, when a plurality of the image portions are detected and the average heights of the image portions are different, the operator image included in the captured image im3 is displayed on the operator image as illustrated in FIG. 7A as the captured image im3. It is assumed that both the height hd1 to the shoulder portion of the operator 200 and the height hd2 to the top of the head appear, and the operator image is assumed to have both the shoulder portion and the image portion showing the top of the head. . In this case, since the height H calculated by the height calculation unit 101 based on the captured image and the operator image included in the captured image is considered to be highly accurate, the height H calculated in S5 is assumed to be accurate. The average value Hmv is calculated and stored (S8).

  On the other hand, when a plurality of the image portions are not detected (NO in S11), the average value calculation unit 103 determines that the operator image included in the captured image im4 is a shoulder portion as shown as the captured image im4 in FIG. 7B. And the image portion showing both the top of the head, and from the captured image and the operator image, the height calculation by S5 may not be able to accurately calculate the height H. A standard value corresponding to the size (vertical width, height) is added to the height H calculated in S5 (S12). Then, the average value calculation unit 103 uses the height H ′ to which the standard value is added instead of the height H to calculate and store the height average value Hmv (S8).

  If the average value calculation unit 103 determines in S9 that both the left distance sl and the right distance sr are below the threshold (NO in S9), the height H cannot be calculated. If there is, the process returns to S4.

  After the process returns to S4 as described above, until the distance R acquired from the operator detection sensor 50 becomes equal to or smaller than the threshold (S4), the height calculation unit 101 starts from the imaging device 80, although not particularly illustrated. Each time the predetermined time t elapses from the previous time point when the captured image was acquired, the height calculation processing (S5, S6) and the calculation and storage processing of the height average value Hmv (S8 to S12) are performed. Repeated.

  In S4, if the height calculation unit 101 determines that the distance R is equal to or less than the threshold (YES in S4), the height storage unit 106 stores the height stored in the height storage unit 102 at this time. It is determined whether the average value Hmv is the initial value 0 (S14).

  If the height storage unit 106 determines that the average height value Hmv stored in the height storage unit 102 is not the initial value 0 (NO in S14), the operator 200 is further permitted to log in. It is determined whether or not the person is a person (S15).

  If the height storage unit 106 determines that the operator 200 is a person who is permitted to log in (YES in S15), the height average value Hmv and each height H stored in the height storage unit 102 at this time are stored. Then, the information is stored in the operator information storage unit 105 in association with the logged-in operator (S16). At this time, the height storage unit 106 sets the height average value Hmv stored in the height storage unit 102 at this time as a height Hdf used for operation control (S19) described later by the control unit 100 (S17).

  If the height storage unit 106 determines that the operator is not permitted to log in (NO in S15), the process of S16 is not performed, and the process proceeds to S17.

  On the other hand, if the height storage unit 106 determines in S14 that the average height value Hmv stored in the height storage unit 102 is the initial value 0 (YES in S14), that is, measurement of the current height H is not established. Finally, when the value stored in the height storage unit 102 remains the initial value 0, the control unit 100 determines whether the operator is a person permitted to log in (S20). If it is determined that the user is permitted to log in (YES in S20), the height average value Hmv stored in the operator information storage unit 105 at that time in association with the operator who has logged in is controlled. It is set as the height Hdf used for the operation control of the elevating unit 605 by the unit 100 (S21).

  After S17 or S21, the control unit 100 determines whether or not an instruction to execute the discharge height automatic setting operation is received from the operator (S18). If the control unit 100 determines that the execution instruction for the discharge height automatic setting operation is received (YES in S18), after the image forming process associated with the execution of the copy job, the image has already been formed. The main discharge tray 623 and the discharge tray 622 from which the recording paper is discharged are moved to a height position corresponding to the height Hdf set in S17 or S21 at this time by the elevating unit 605 (S19). For example, the control unit 100 stores a height Hdf-tray height data table storing the height Hdf and the corresponding tray height position, and an image has been formed based on the job input by the operator. The main discharge tray 623 or the discharge tray 622 for discharging the recording paper is specified, and the elevating unit 605 is driven so that the tray is positioned at the tray height corresponding to the height H. The height Hdf used by the control unit 100 for the operation control is the height Hdf set in S17 when it passes through S17, or the height Hdf set in S21 when it passes through S21.

  In addition, when the control unit 100 determines that the execution instruction for the discharge height automatic setting operation is not received (NO in S18), the control unit 100 does not perform the operation control of the elevating unit 605 according to the height Hdf. Then, the elevating unit 605 moves the main discharge tray 623 and the discharge tray 622 from which the image-formed recording paper is discharged to a preset standard height position (S22).

  In S20, the control unit 100 also performs the process of S22 when it is determined that the operator is not a person who is permitted to log in (NO in S20).

  Thus, according to the present embodiment, the height calculation unit 101 sets the height of the operator image indicating the operator 200 in the captured image captured by the imaging device 80 at each predetermined time t. Based on this, the height H of the operator 200 is calculated, and the average value calculation unit 103 has already stored the height H of the operator newly calculated by the height calculation unit 101 and the height storage unit 102 at this time. The height average value Hmv is calculated using each height H. For this reason, the calculation of the height average value Hmv absorbs the error of each height H calculated at the predetermined time t, and the height storage unit 102 stores the height average value Hmv in an accurate height. Is held as a value indicating.

  Then, when the distance R measured by the operator detection sensor 50 becomes equal to or less than the predetermined threshold, the control unit 100 increases the height corresponding to the height average value Hmv stored in the height storage unit 102. The main discharge tray 623 and the discharge tray 622 are moved to the vertical position by the elevating unit 605. For this reason, the control part 100 can perform the said operation | movement control by the raising / lowering part 605 according to the height average value Hmv measured correctly as mentioned above and memorize | stored in the height memory | storage part 102. FIG.

  Accordingly, it is possible to control the operation mechanism of the image forming apparatus 1 according to the height of the operator while improving the accuracy of the height measurement of the operator 200.

  In the above-described embodiment, the height HrU of the imaging region by the imaging device 80 set in advance and the ratio of the height of the operator image to the vertical width of the captured image (height hd / (upward distance hu + height hd) )) And the height HrD of the imaging region stored in correspondence with the position of the operator 200 at the time of capturing the captured image, the height H is calculated, so the accuracy of the calculated height H Can be further improved.

  Further, in the present embodiment, the control unit 100 is configured so that the height calculation unit only when the operator image in the captured image includes an image portion that is assumed to indicate the presence of the shoulder and head of the operator 200. Since the height (height Hdf) corresponding to the height average value Hmv calculated including the height H calculated by 101 is moved by the elevating unit 605, the main discharge tray 623 and the discharge tray 622 are moved more accurately. The operation mechanism of the image forming apparatus 1 can be controlled in accordance with the height of the operator 200.

  Further, in the present embodiment, when the author image in the captured image does not include an image portion that is supposed to indicate the presence of the shoulder and head of the operator 200, the height H calculated by the height calculation unit 101 is used. Since the height H ′ obtained by adding a standard value corresponding to the size (vertical width) of the person's head is used instead of the height H, the above-mentioned height average value Hmv is calculated and stored (S8). Even when it is assumed that the probability of calculating the height H based on the operator image in the captured image is low, the height storage unit 102 should have an accurate height average value Hmv as much as possible. Is possible.

  Further, in the above embodiment, the height storage unit 106 allows the login of the height average value Hmv stored in the height storage unit 102 when the distance R becomes equal to or less than the predetermined threshold. Therefore, when the operator 200 who is permitted to log in next time operates the image forming apparatus 1, the distance R is the above-described distance R. If the height average value Hmv stored in the height storage unit 102 is the initial value 0 when the height is equal to or less than a predetermined threshold value, and the height measurement of the operator 200 is not established, the control unit 100 performs operation control by the elevating unit 605 using the height Hdf indicated by the average height value Hmv stored in the operator information storage unit 105 in association with the operator 200 permitted to log in. That. For this reason, even if the measurement of the height H of the operator 200 is not established this time, the height Hdf indicated by the average height Hmv of the operator 200 calculated in the previous measurement is used to respond to the height of the operator 200 Further, the operation control by the elevating unit 605 is possible.

  The present invention is not limited to the configuration of the above embodiment, and various modifications can be made. In the above-described embodiment, the control unit 100 performs the elevation control of the operation mechanism of the image forming apparatus 1 using the height Hdf indicated by the average height value Hmv stored in the height storage unit 102 or the operator information storage unit 105. The movement of the main discharge tray 623 and the discharge tray 622 by the unit 605 is described. However, the operation mechanism that is the target of the operation control performed by the control unit 100 using the height Hdf and the operation thereof are not limited thereto. The operation of the operation mechanism, for example, adjusting the angle of the display screen with respect to the operator 200 of the display unit 473, the contrast, brightness, and the like of the display unit 473 according to the height Hdf is included.

  In the above embodiment, the electronic apparatus according to the present invention is described using an image forming apparatus as a multifunction peripheral. However, this is merely an example, and other image forming apparatuses such as a printer are used. Further, it may be a copier, a facsimile machine or the like, or may be another electronic device, for example, a device having a display unit such as an image display device.

  Moreover, in the said embodiment, the structure and process which were shown by the said embodiment using FIG. 1 thru | or FIG. 7 are only one Embodiment of this invention, and are not the meaning which limits this invention to the said structure and process.

DESCRIPTION OF SYMBOLS 1 Image forming apparatus 10 Control unit 100 Control part 101 Height calculation part 102 Height storage part 103 Average value calculation part 104 Login process part 105 Operator information storage part 106 Height preservation | save part 12 Image formation part 47 Operation part 50 Operator detection sensor 80 Imaging device 60 Post-processing device 605 Lifting unit 622 Discharge tray 623 Main discharge tray 200 Operator

Claims (6)

A distance measuring unit that measures the distance from the electronic device to the operator;
An imaging unit for imaging the operator;
A height calculation unit that calculates the height of the operator based on the height of the operator image indicating the operator in the captured image captured by the imaging unit at a predetermined time;
A height storage unit for storing the height of the operator calculated by the height calculation unit;
The average value is calculated using the height of the operator newly calculated by the height calculation unit and the height already stored in the height storage unit, and stored in the height storage unit. And
Using the height average value stored in the height storage unit when the distance measured by the distance measurement unit becomes equal to or less than a predetermined threshold value, an operation corresponding to the height is performed on the operation mechanism. An electronic device provided with a control unit.   The height calculation unit is measured by the distance measurement unit by a value obtained by multiplying a vertical width of an imaging region by the imaging unit by a ratio with respect to the vertical width occupied by an operator image in a captured image captured by the imaging unit. The electronic device according to claim 1, wherein a value obtained by adding a height of a lowermost portion of the imaging region by the imaging unit at a position indicated by a distance is calculated as the height of the operator. Based on the identification information unique to the operator, a login processing unit for performing login processing to the electronic device of the operator,
An operator information storage unit that stores information about an operator who is permitted to log in by the login processing unit;
The height average value stored in the height storage unit when the distance measured by the distance measurement unit is equal to or less than the threshold is associated with the operator who is permitted to log in at this time, and A height storage unit to be stored in the operator information storage unit;
If the height is not stored in the height storage unit when the distance measured by the distance measurement unit is equal to or less than the threshold, the control unit is allowed to log in the operator information storage unit. The electronic apparatus according to claim 1, wherein an operation according to the height is performed by an operation mechanism using the height average value stored in association with the operator who is operating.   When the distance from the side edge of the operator image to the side edge of the captured image in the captured image is equal to or less than a predetermined threshold, the average value calculating unit The electronic apparatus according to claim 3, wherein the height average value is calculated using the height of the operator newly calculated by the height calculation unit when it is determined that there are a plurality of image portions indicating the height.   The height calculation unit, when determining that the operator image does not have a plurality of image portions indicating the height, further adds a predetermined value to calculate the height of the operator. The electronic device described. An electronic device according to any one of claims 1 to 5,
An image forming unit for forming an image on a recording medium;
A discharge tray for discharging a recording medium after image processing by the image forming unit;
An elevating part that elevates and lowers the discharge tray in the vertical direction;
When the distance measured by the distance measurement unit becomes equal to or less than the threshold, the control unit is moved to a height position corresponding to the height stored in the height storage unit by the lifting unit as the operation mechanism. An image forming apparatus for moving the discharge tray.