JP4871752B2 - Electronics - Google Patents

Description

  The present invention relates to an electronic device including a display unit that is mounted on a moving body such as an automobile and that is provided so as to be freely inserted and removed from the device main body.

  Conventionally, a navigation device as an electronic device (hereinafter referred to as a car navigation system, for example, see Patent Document 1) may be attached to an automobile as a moving body. The car navigation system includes a box-shaped main body section and a display section that can be inserted into and removed from the main body section.

  The main body is formed in a flat box shape and is attached to the aforementioned instrument panel of the automobile. The main body contains a navigation unit, a TV tuner, a DVD (Digital Versatile Disk) player, and the like. The display unit is formed in a flat plate shape, and includes a display panel such as an LCD (Liquid Crystal Display). The display unit displays information from the navigation unit described above, information reproduced by the DVD player, and television images received by the television tuner on the display panel.

  Further, the main body described above includes a driving mechanism for taking the display unit described above into and out of the main body. The drive mechanism includes a housing position in which the display unit described above is housed in the main body with the display panel facing downward, and the display unit is temporarily moved outside the main body along the surface of the display panel. The display unit is moved over the discharge position positioned at the position. In addition, the drive mechanism rotates around the lower end portion as one end portion of the display unit at the discharge position described above to make the display panel relative to the user or to make the display panel relatively downward.

  In the car navigation shown in Patent Document 1 described above, the drive mechanism temporarily moves the display unit out of the main body along the surface of the display panel in a state where the display unit is accommodated in the housing. And a drive mechanism rotates a display part centering on a lower end part, and makes a display panel oppose the passenger | crew etc. of the motor vehicle mentioned above. The above-described car navigation displays information from the navigation unit, information reproduced by the DVD player, and television images received by the television tuner on the display panel.

  In addition, the car navigation shown in Patent Document 1 has an operation completion time (referred to as a time-out time) when moving the display unit from the housing position toward the discharge position, and one end portion at the discharge position. Operation completion time when rotating and raising the display unit (referred to as timeout time), and operation completion time when rotating around the one end at the discharge position and bringing down the display unit (called timeout time) ) And an operation completion time (referred to as a timeout time) when the display unit is moved from the discharge position toward the storage position, and whether each operation is completed within the timeout time It is determined whether or not.

Further, the car navigation shown in Patent Document 1 rotates around the one end at the discharge position and the voltage applied by the motor when the display unit is moved from the storage position toward the discharge position. The voltage applied by the motor when starting up the display unit, the voltage applied by the motor when rotating the display unit around the one end at the discharge position and lowering the display unit, and from the discharge position toward the housing position. When the display unit is moved, the voltage applied by the motor is stored in advance, and the voltage is applied to the motor during each operation.
JP 2002-55625 A

  It is conceivable that the above-described car navigation system can be attached to various types of automobiles. For this reason, when the above-mentioned car navigation system is attached to the instrument panel as an attachment, it is conceivable that the device main body is attached at various attachment angles.

  For this reason, the car navigation shown in Patent Document 1 described above has the most load on the motor when the display unit is moved and rotated so that the above-described timeout time and voltage correspond to various mounting angles. Even in a strong state, the display unit is set to a value that can reliably move and rotate.

  For this reason, depending on the mounting angle of the apparatus main body, even when the display unit is easily moved or rotated, the time-out time may be increased or the voltage applied to the motor may be increased.

  If the difference between the actual operation completion time and the set timeout time becomes large, even if the display unit stops due to some factor during the movement of the display unit, such as hitting an operator's hand or an obstacle, Since the voltage is continuously applied to drive the display unit until the timeout time elapses, the time for applying the voltage after the stop becomes longer. Then, by continuing to apply a voltage to drive the stopped display unit, the load applied to the drive mechanism tends to increase. In addition, when the voltage applied to the motor is larger than necessary, the load applied to the drive mechanism tends to increase.

  The objective of this invention is providing the electronic device which can suppress the load given to the drive mechanism which drives a display part as much as possible, for example.

  In order to solve the above problems and achieve the object, an electronic device according to a first aspect of the present invention is a device main body attached to an attached object, and is movable inside and outside the device main body and can display information. The display unit is moved between a display unit, a storage position in the device main body, and a discharge position discharged from the storage position to the outside of the device main body, and one end portion is centered at the discharge position. In an electronic device comprising a transfer means for rotating the display unit, the transfer angle when the display unit is moved from the housing position toward the discharge position, and the mounting angle of the device body with respect to the attachment object Between the drive condition of the device and the drive condition of the transfer means when the display unit is moved from the discharge position toward the storage position, and the attachment of the device body to the attachment object The angle, the driving condition of the transfer means when the display unit is raised by rotating around the one end at the discharge position, and the display unit by rotating around the one end at the discharge position A first storage unit that stores both of the relationship with the driving condition of the transfer unit when lowering, a second storage unit that stores an attachment angle of the device body with respect to the attachment object, and a second storage unit. Control means for controlling the transfer means under the driving conditions stored in the first storage means based on the mounting angle of the device main body stored by the means.

  Hereinafter, an electronic apparatus according to an embodiment of the present invention will be described. The electronic device according to an embodiment of the present invention moves in advance by driving the transfer unit under a drive condition corresponding to the mounting angle of the device main body, in advance by setting a driving condition of the transfer unit for each mounting angle of the device main body. It is possible to drive the transfer means under driving conditions suitable for an attachment angle at which the part is easy to move or an attachment angle at which the part is difficult to move. By doing so, the electronic apparatus of the present embodiment can prevent the transfer unit from continuing to be driven even if the movement of the display unit stops halfway, and the voltage applied to the motor or the like of the transfer unit that drives the display unit can be prevented. The load applied to the transfer means for driving the display unit is suppressed as much as possible.

  Further, in the electronic device of the present embodiment, when the mounting angle of the device main body is not stored in the second storage unit, the display unit is in a state parallel to the vertical direction after the display unit is positioned at the discharge position. If there is an input, the control means may calculate the attachment angle of the device main body and write it to the second storage means based on the rotation angle of the display unit. In this case, since the attachment angle of the apparatus main body can be input after the electronic apparatus is attached to the attachment object, the transfer means can be driven based on the accurate attachment angle.

  Furthermore, in the electronic device of the present embodiment, a voltage to be applied to the first motor and the second motor of the transfer unit is determined in advance for each mounting angle, and the first motor and the second motor are applied according to the mounting angle of the device body. You may make it change the voltage to apply. In this case, when it is difficult for the display unit to move, the voltage applied to the first motor and the second motor is increased to shorten the time required for the display unit to move, and the timeout period (that is, the operation is started). In the case where the display unit is easy to move, the voltage applied to the first motor and the second motor is reduced to save power. Can be achieved.

  An embodiment of the present invention will be described with reference to FIGS. A car navigation device (hereinafter referred to as “car navigation”) 1 as an electronic device is mounted on an instrument panel (hereinafter referred to as “instrument panel”) D as an attachment of a car as a moving body, as shown in FIG. Is done.

  As shown in FIGS. 2 to 5, the car navigation system 1 inserts and removes the device main body 2, a display unit 3 as a display unit provided in and out of the device main body 2, and the display unit 3 in and out of the device main body 2. Drive mechanism 4 (shown in FIGS. 6 and 7) as transfer means, ROM 6 (shown in FIG. 8) as first storage means, EPROM 7 (shown in FIG. 8) as second storage means, and control means As a CPU 8 (shown in FIG. 8).

  The device body 2 is formed in a flat box shape. The device body 2 is attached to the instrument panel D. When mounted on the instrument panel D, the device body 2 is provided with an opening 2a and an insertion port 2b through which a DVD-ROM, a DVD video, and the like described later are inserted and removed on the surface facing the passenger compartment side of the automobile. In the following, the vehicle width direction of the aforementioned automobile shown in FIG. 2 and the like is indicated by an arrow X, the aforementioned longitudinal direction of the automobile is indicated by an arrow Y, and the height direction of the aforementioned automobile is indicated by an arrow Z. In the illustrated example, the width direction of the car navigation 1 matches the arrow X, the depth direction of the car navigation 1 matches the arrow Y, and the thickness direction of the car navigation 1 matches the arrow Z.

  Further, the device main body 2 accommodates the navigation unit 9, the DVD player 10, the TV tuner 11, and the like shown in FIG. That is, the car navigation 1 further includes a navigation unit 9, a DVD player 10, and a television tuner 11.

The navigation unit 9 receives a vehicle speed pulse signal corresponding to the rotation of the tire of the automobile from the above-mentioned automobile travel distance sensor. The navigation unit 9 includes an acceleration sensor that detects the acceleration in the arrow Y direction described above, a GPS (Global Positioning System), and the like. The navigation unit 9 measures the position of the automobile, calculates the moving direction of the automobile, and the like using the acceleration sensor and GPS described above. Then, the navigation unit 9 displays the position and moving direction of the automobile on a display panel 3a (to be described later) of the display unit 3.

  In the illustrated example, as shown in FIG. 14, when the display unit 3 moves from the storage position described later toward the discharge position, the display unit 3 moves upward, and from the discharge position to the storage position. When the display unit 3 moves toward, the inclination θ0 of the device main body 2 with respect to the horizontal direction (shown in FIGS. 2 to 5) in the state where the display unit 3 moves downward is added, plus And the angle. Further, as shown in FIG. 15, when the display unit 3 moves from the storage position toward the discharge position, the display unit 3 moves downward, and the display unit 3 from the discharge position toward the storage position. When the display unit 3 moves upward, the inclination θ0 of the device body 2 with respect to the horizontal direction (shown in FIGS. 2 to 5) of the device main body 2 is a negative angle. The inclination θ0 forms an attachment angle with respect to the instrument panel D of the device main body 2.

  The DVD player 10 reproduces a well-known DVD (Digital Versatile Disk) -ROM (Read Only Memory), DVD video, and the like, and information from the DVD-ROM, DVD video, etc. is displayed on the display panel 3a of the display unit 3. indicate. The television tuner 11 receives a television broadcast and displays the received video on the display panel 3 a of the display unit 3.

  The display unit 3 houses a display panel 3a as a display surface for displaying information such as characters and images made up of a liquid crystal display or the like toward a driver and the like, and the display panel 3a. A housing member 3b is provided. The display unit 3 is accommodated in the device body 2 with the display panel 3a facing downward. The display unit 3 is movable in and out of the device main body 2 by a drive mechanism 4. The display panel 3 a of the display unit 3 displays information from the navigation unit 9, the DVD player 10, and the TV tuner 11 described above.

  Further, as shown in FIGS. 1 and 2, an operation unit 13 as an operation unit is provided on the surface of the device main body 2 described above. The operation unit 13 includes a plurality of operation buttons 14 and the like. These operation buttons 14, that is, the operation unit 13 are used to switch information displayed on the display panel 3 a described above between information from the navigation unit 9, information from the DVD player 10, and information from the TV tuner 11. Used. In addition, the operation button 14, that is, the operation unit 13 is used for putting the display unit 3 in and out of the apparatus main body 2, adjusting the orientation of the display unit 3 at a later-described viewing position, and the like. For this reason, the operation button 14, that is, the operation unit 13 issues a command for moving the display unit 3 in the viewing position to a storage position described later. Further, the operation button 14 is in a state in which the display unit 3 is parallel to the vertical direction (a state in which the display panel 3a is parallel to the vertical direction) in order to adjust the orientation of the display unit 3 in the mounting angle detection mode described later. It is used to input information indicating that.

  As shown in FIGS. 6 and 7, the drive mechanism 4 includes a fixed portion 5, a slide portion 12, a rotating portion 15, a first switch 16 (shown in FIG. 8 and the like), and a second switch 17 (see FIG. And an encoder 19 (shown in FIG. 8 and the like) as detection means. The fixing unit 5 includes a rack 20. The rack 20 is accommodated in the device main body 2 and fixed to the device main body 2. The rack 20 is formed in a straight line, and the longitudinal direction thereof is arranged in parallel with the arrow Y, that is, the front-rear direction of the automobile. The rack 20 is provided over the entire length of the device main body 2 in the arrow Y direction.

  The slide unit 12 includes a slide chassis 21, a first motor 22, and a worm gear 23. The slide chassis 21 is made of sheet metal or the like, and supports one end portion 3c of the display unit 3 near the device main body 2 so as to be rotatable about an arrow X. The first motor 22 is fixed to the slide chassis 21. A worm 24 is attached to the output shaft of the first motor 22. The worm gear 23 is supported by the slide chassis 21 so as to be rotatable about the arrow X. The worm gear 23 meshes with both the worm 24 and the rack 20.

  When the first motor 22 is driven forward, for example, when the first motor 22 rotates in the forward direction, the worm gear 23 travels on the rack 20, and the slide chassis 21, that is, the display unit 3 is moved from the inside of the equipment body 2 to the outside of the equipment body 2 through the opening 2 a. Move towards. When the first motor 22 is driven in reverse, for example, when the first motor 22 is driven in reverse, the worm gear 23 travels on the rack 20 to move the slide chassis 21, that is, the display unit 3 from the outside of the equipment body 2 into the equipment body 2 through the opening 2 a. Move.

  The rotating unit 15 includes a second motor 25, a connecting gear 26, and a rotating shaft gear 27. The second motor 25 is fixed to the slide chassis 21 and a pinion 28 is attached to its output shaft. The connecting gear 26 is supported by the slide chassis 21 so as to be rotatable about the arrow X, and meshes with the pinion 28. The rotating shaft gear 27 is fixed to the above-described one end 3 c of the display unit 3. The rotating shaft gear 27 meshes with the connecting gear 26.

  With the above-described configuration, for example, when the second motor 25 is driven to rotate forward, the rotating unit 15 rotates in the direction in which the display unit 3 is raised around the arrow X about the one end 3c described above. When the second motor 25 is driven in reverse, the rotating unit 15 rotates in the direction of lowering the display unit 3 around the arrow X around the one end 3c described above.

  The first switch 16 is disposed at the back of the device body 2 on the side away from the opening 2a. The first switch 16 is pressed and turned on by the slide chassis 21 when the display unit 3 is accommodated in the device main body 2 and the display unit 3 is positioned at the accommodated position accommodated in the device main body 2. The first switch 16 is turned off without being pressed from the slide chassis 21 when the display unit 3 is positioned closer to the discharge position where the display unit 3 is completely discharged out of the device body 2 than the housing position, that is, closer to the opening 2a. The first switch 16 outputs information indicating on and off to the CPU 8. The first switch 16 detects whether or not the display unit 3 is positioned at the storage position, and outputs the detection result toward the CPU 8.

  The second switch 17 is disposed at a location near the opening 2 a in the device main body 2. When the display unit 3 is positioned outside the device main body 2 and the display unit 3 is positioned at the discharge position, the second switch 17 is pressed by the slide chassis 21 to be turned on. The second switch 17 is turned off without being pressed from the slide chassis 21 when the display unit 3 is positioned closer to the above-described storage position than the discharge position, that is, closer to the opening 2a. The second switch 17 outputs information indicating on and off to the CPU 8. The second switch 17 detects whether or not the display unit 3 is positioned at the exposure position, and outputs the detection result to the CPU 8.

  The encoder 19 detects a rotation direction and a rotation angle around the one end 3c of the display unit 3 and outputs information corresponding to the detected rotation direction and rotation angle to the CPU 8.

  With the above-described configuration, the drive mechanism 4 has a housing in which the first motor 22 is driven forward, for example, the worm gear 23 travels on the rack 20, and the slide chassis 21, that is, the display unit 3 is housed in the device body 2. The display unit 3 is moved from the position (shown in FIG. 6) toward the discharge position (shown in FIG. 7) discharged out of the device main body 2 along the arrow Y, that is, the depth direction of the device main body 2. That is, when the first motor 22 is rotated forward, for example, the drive mechanism 4 causes the display unit 3 in the device main body 2 to be discharged out of the device main body 2 through the opening 2a.

  Further, when the first motor 22 is driven in reverse, for example, the drive mechanism 4 moves the worm gear 23 on the rack 20 and moves the slide chassis 21, that is, the display unit 3 from the aforementioned discharge position toward the accommodation position by the arrow Y. That is, it moves along the depth direction of the device body 2. That is, when the first motor 22 is driven in reverse, for example, the drive mechanism 4 accommodates the display unit 3 outside the device main body 2 in the device main body 2 through the opening 2a. In this way, the drive mechanism 4 moves the display unit 3 and the like between the storage position stored in the device main body 2 and the discharge position discharged from the device main body 2.

  Furthermore, with the above-described configuration, when the second motor 25 is driven to rotate forward, for example, the drive mechanism 4 is ejected from the device main body 2, that is, moved from the accommodation position, and the initial position of the ejection position (shown by a solid line in FIG. 7). The display unit 3 positioned in FIG. 7 is rotated around the one end 3c described above at the discharge position, and the display panel 3a is opposed to an occupant or the like in the passenger compartment, for example, shown by a two-dot chain line in FIG. Position it at the viewing position. In the present specification, the display unit 3 positioned outside the device body 2 is said to be positioned at the discharge position. That is, in this specification, the visual recognition position and the initial position are part of the discharge position. Further, in this specification, the state in which the display panel 3a faces downward at the discharge position is referred to as the display unit 3 being positioned at the initial position of the discharge position (shown by a solid line in FIG. 9). The visual recognition position refers to a position rotated around the one end 3c from the initial position.

  Further, when the second motor 25 is driven in reverse, for example, the drive mechanism 4 rotates the display unit 3 positioned at the above-described visual recognition position around the above-described one end 3c, and the display panel 3a is opposed downward. It moves toward the initial position of the discharge position described above. In this way, the drive mechanism 4 moves the display unit 3 across the storage position and the discharge position discharged from the storage position to the outside of the device main body 2. Further, the driving mechanism 4 rotates the display unit 3 around the one end 3c at the discharge position, and displaces the display unit 3 to a visual recognition position where the information displayed on the display panel 3a is visually recognized by the occupant. As described above, the drive mechanism 4 rotates the display unit 3 around the one end 3c, so that the display unit 3 discharged out of the device body 2 is raised and positioned at the visual recognition position, and the display is performed from the visual recognition position. The display unit 3 is positioned at the initial position of the discharge position where the unit 3 is lowered and discharged from the device main body 2. Note that the term “rise” refers to displacing the display unit 3 at the discharge position from the initial position toward the visual recognition position, and the term “fall” refers to displacing the display unit 3 at the discharge position from the visual recognition position toward the initial position. That means.

  The ROM 6 stores a program for operating the car navigation 1 and the like. The ROM 6 stores a program for operating the CPU 8 as described later. In addition, the ROM 6 has a tilt θ0 as an attachment angle of the device main body 2 shown in FIG. 13A and a first motor of the drive mechanism 4 when the display unit 3 is moved from the accommodation position toward the initial position of the discharge position. A drive voltage table 30A is stored which is a relationship between the drive conditions of 22 and the drive conditions of the first motor 22 of the drive mechanism 4 when the display unit 3 is moved from the initial position of the discharge position toward the storage position. .

  Further, the ROM 6 includes the inclination θ0 as the mounting angle of the device main body 2 shown in FIG. 13B and the second motor of the drive mechanism 4 when the display unit 3 is moved from the initial position of the discharge position toward the visual recognition position. The drive voltage table 30B, which is a relationship between the drive conditions of 25 and the drive conditions of the second motor 25 of the drive mechanism 4 when the display unit 3 is moved from the visual recognition position of the discharge position toward the initial position, is stored. . The process in which the ROM 6 stores the drive voltage tables 30A and 30B includes the display unit 3 between the inclination θ0 of the device main body 2 and between the storage position and the discharge position and between the initial position and the visual recognition position at the discharge position. This is a storage step for storing the relationship between the drive condition for movement.

  The drive voltage table 30A shown in FIG. 13A is applied to the first motor 22 when the display unit 3 is moved from the storage position to the initial position of the discharge position for each inclination θ0 of the device main body 2 described above. Voltage (denoted as drive voltage during discharge, corresponding to drive conditions) and voltage applied to the first motor 22 when the display unit 3 is moved from the initial position of the discharge position to the storage position (denoted as drive voltage during storage) Corresponding to driving conditions). The drive voltage table 30A defines the drive voltage in each case so that the time from the start of each operation to the completion of each operation becomes substantially equal. That is, the drive voltage table 30A increases the voltage applied to the first motor 22 when the load applied to the first motor 22 is large, and the first voltage when the load applied to the first motor 22 is small. The voltage applied to the motor 22 is lowered.

  In this way, the drive voltage table 30A has the inclination θ0 of the device main body 2 such that the time from the start of each operation to the completion of each operation becomes substantially equal, and from the storage position toward the initial position of the discharge position. The relationship between the voltage of the first motor 22 when moving the display unit 3 and the voltage of the first motor 22 when moving the display unit 3 from the initial position of the discharge position toward the accommodation position is determined. .

  The drive voltage table 30B shown in FIG. 13B is applied to the second motor 25 when the display unit 3 is moved from the initial position of the discharge position to the visual recognition position for each inclination θ0 of the device main body 2 described above. Voltage (referred to as drive voltage at start-up and corresponding to drive conditions) and voltage applied to the second motor 25 when the display unit 3 is moved from the visual recognition position of the discharge position to the initial position (drive voltage at fall-off) (Corresponding to the driving conditions). The drive voltage table 30B defines the drive voltage in each case so that the time from the start of each operation to the completion of each operation becomes substantially equal. That is, the drive voltage table 30B increases the voltage applied to the second motor 25 when the load applied to the second motor 25 is large, and the second voltage when the load applied to the second motor 25 is small. The voltage applied to the motor 25 is lowered.

  As described above, the drive voltage table 30B has the inclination θ0 of the device body 2 such that the time from the start of each operation to the completion of each operation becomes substantially equal, and the initial position of the discharge position toward the visual recognition position. The relationship between the voltage of the second first motor 22 when the display unit 3 is moved and the voltage of the second motor 25 when the display unit 3 is moved from the visual recognition position of the discharge position toward the initial position is determined. ing.

  The EPROM 7 is a well-known non-volatile memory, and the CPU 8 writes the inclination θ 0 as an attachment angle of the device main body 2 with respect to the instrument panel D. Further, after the EPROM 7 is positioned from the storage position to the discharge position, the CPU 8 writes the rotation direction and rotation angle of the display unit 3 based on the information from the encoder 19 at the discharge position.

  The CPU 8 constitutes the control means described in the claims. As shown in FIG. 8, the navigation unit 9, the DVD player 10, the TV tuner 11, and the motors 22 and 25 of the drive mechanism 4 described above. The switches 16 and 17, the encoder 19, the ROM 6, the EPROM 7, and the like are connected. By controlling these, the entire car navigation 1 is controlled.

  When the CPU 8 inputs a command to eject the display unit 3 out of the device main body 2 from the operation button 14 or the like of the operation unit 13 and position it at the visual recognition position in a state where the display unit 3 is accommodated in the device main body 2, 1 The motor 22 is driven to rotate forward, the display unit 3 is moved along the arrow Y, and is gradually discharged out of the device body 2 through the opening 2a. Then, the CPU 8 stops the first motor 22 when the first switch 16 is turned off and the second switch 17 is turned on.

  Further, when the CPU 8 normally drives the first motor 22, the first voltage is applied to the drive voltage table 30 </ b> A stored in the ROM 6 based on the information indicating the inclination θ <b> 0 of the device body 2 stored in the EPROM 7. Applied to the motor 22.

  Then, after a predetermined time has elapsed since the second switch 17 is turned on, the CPU 8 detects that the display panel 3a is displayed to the occupant based on the information indicating the inclination θ0 of the device body 2 stored in the EPROM 7. The second motor 25 is driven to rotate forward so as to face each other, and the display unit 3 is started up. Thus, the CPU 8 causes the drive unit 4 to displace the display unit 3 from the initial position of the discharge position toward the visual recognition position. Further, when the CPU 8 rotates the second motor 25 in the forward direction, the second voltage is applied to the drive voltage table 30B stored in the ROM 6 based on the information indicating the inclination θ0 of the device body 2 stored in the EPROM 7. Applied to the motor 25.

  Further, when a command for changing the direction of the display unit 3 is input from the operation unit 13 in a state where the display unit 3 is positioned at the visual recognition position of the discharge position, the CPU 8 controls the second motor 25 according to the command. Drive to change the orientation of the display unit 3. Further, based on the information from the encoder 19, the CPU 8 writes the information indicating the rotation direction and the rotation angle indicating the direction of the display unit 3 in the EPROM 7. Further, the CPU 8 appropriately changes information displayed on the display panel 3 a of the display unit 3 among the information from the navigation unit 9, the DVD player 10, and the TV tuner 11 in accordance with a command from the operation button 14.

  The CPU 8 inputs a command for storing the display unit 3 in the device main body 2 from the operation button 14 or the like of the operation unit 13 in a state where the display unit 3 is positioned at the visual recognition position. There is. Then, the CPU 8 reads information indicating the direction and the rotation angle of the display unit 3 from the information stored in the EPROM 7, and determines the rotation direction and the rotation speed of the second motor 25 at which the display unit 3 is the initial position of the discharge position. calculate. Then, the CPU 8 drives the second motor 25 in the calculated rotation direction based on the information from the encoder 19 to rotate the display unit 3 around the one end 3c. The CPU 8 stops the second motor 25 after driving the second motor 25 with the rotation speed in the calculated rotation direction. Further, when the CPU 8 drives the second motor 25 in the reverse direction, the CPU 8 applies the voltage according to the drive voltage table 30B stored in the ROM 6 based on the information indicating the inclination θ0 of the device body 2 stored in the EPROM 7. 25.

  Then, the CPU 8 drives the first motor 22 in the reverse direction until the second switch 17 is turned off and the first switch 16 is turned on to move the display unit 3 from the initial position of the discharge position toward the accommodation position. And accommodated in the device body 2. Further, when the CPU 8 drives the first motor 22 in the reverse direction, the CPU 8 applies the voltage according to the drive voltage table 30A stored in the ROM 6 based on the information indicating the inclination θ0 of the device body 2 stored in the EPROM 7. 22 is applied.

  As described above, the CPU 8 controls the motors 22 and 25 of the drive mechanism 4 according to the drive voltage tables 30A and 30B stored in the ROM 6 based on the inclination θ0 as the mounting angle of the device body 2 detected by the navigation unit 9. Control. For example, the CPU 8 applies a voltage of 6 V to the first motor 22 when moving the display unit 3 from the storage position toward the discharge position in a state where the inclination θ0 of the device body 2 exceeds 30 degrees, and discharges the display unit 3. When the display unit 3 is moved from the position toward the storage position, a voltage of 2 V is applied to the first motor 22. Further, the CPU 8 applies a voltage of 2V to the second motor 25 when the display unit 3 is moved from the initial position of the discharge position toward the visual recognition position in a state where the inclination θ of the device body 2 exceeds 30 degrees. Then, when moving the display unit 3 from the visual recognition position toward the initial position, a voltage of 6 V is applied to the first motor 22.

  Further, in a state where the information indicating the inclination θ0 as the mounting angle of the device main body 2 is not written in the EPROM 7, the CPU 8 first places the vehicle on the horizontal position to the driver via the car audio speaker connected to the car navigation system. Voice information prompting to stop at is output. Thereafter, the CPU 8 positions the display unit 3 in the device main body 2 at the initial position of the discharge position, and then prompts the user to position the display unit 3 at the initial position at a position where the display panel 3a is parallel to the vertical direction. Output information. Therefore, an occupant of the automobile adjusts the angle of the display unit 3 by operating the operation button 14 so that the display unit 3 is in a vertical state (parallel to the vertical direction). When the information indicating that the display panel 3a is positioned at a position parallel to the vertical direction is input from the operation button 14 of the operation unit 13, the CPU 8 displays the discharge position from the initial position of the discharge position. The rotation angle θ (shown in FIG. 9) about the one end 3c of the unit 3 is obtained, and the inclination θ0 of the device body 2 is calculated using the following equation 1.

  Inclination θ0 = 90 ° −Rotation angle θ

  Then, the CPU 8 writes the calculated inclination θ0 of the device main body 2 in the EPROM 7, and controls the motors 22 and 25 according to the drive voltage tables 30A and 30B based on the inclination θ0 as described above, and the display unit 3 is The display unit 3 is moved between the storage position and the initial position of the discharge position, and the display unit 3 is moved between the initial position of the discharge position and the visual recognition position. FIG. 9 shows a case where the rotation angle θ is approximately 90 degrees and the inclination θ0 is approximately 0 degrees.

  Next, the operation of the car navigation 1 as the electronic apparatus having the above-described configuration will be described. First, as shown in FIG. 2, when the automobile engine is turned on while the display unit 3 is housed in the device body 2, the CPU 8 attaches the device body 2 to the EPROM 7 in step S51 in FIG. It is determined whether or not the inclination θ0 as an angle is written. Note that the state in which the inclination θ0 as the mounting angle of the device body 2 is not written in the EPROM 7 means that a new car navigation system 1 has just been mounted on the instrument panel D, the car navigation system 1 is reloaded between cars, or a car battery is not installed. It is assumed that the power supplied from the battery is interrupted.

  If it is determined in step S51 that the inclination θ0 as the attachment angle of the device main body 2 is written in the EPROM 7, the CPU 8 proceeds to step S1 in FIG. 11, and in step S51, the inclination as the attachment angle of the device main body 2 is established. If it is determined that θ0 is not written, the CPU 8 proceeds to step S52 in FIG.

  In step S52, the CPU 8 issues voice information (comment) that prompts the driver to position the automobile in a horizontal position from the speaker described above. When the CPU 8 receives information indicating that the automobile has been positioned at a horizontal position from the operation button 14 of the operation unit 13, the CPU 8 proceeds to step S53. In step S53, the CPU 8 positions the display unit 3 at the discharge position from the speaker described above toward the driver, and then the display panel 3a is parallel to the vertical direction, that is, the display unit 3 is positioned substantially vertically. Voice information (comments) is urged to be sent.

  Then, the CPU 8 positions the display unit 3 from the accommodation position to the initial position of the discharge position according to a command from the operation button 14, and then rotates the display unit 3 around the one end 3c at the discharge position. Proceed to step S54. In the illustrated example, the display unit 3 is rotated by approximately 90 degrees. CPU8 will progress to step S55, if the information which shows that the display panel 3a of the display unit 3 is parallel to a perpendicular direction is input from the operation button 14 by step S54.

  In step S55, the CPU 8 obtains the rotation angle θ from the initial position of the display unit 3 from the encoder 19, and proceeds to step S56. In step S56, the CPU 8 calculates an inclination θ0 as an attachment angle of the device main body 2 with respect to the instrument panel D based on the above-described equation 1, and proceeds to step S57. In the illustrated example, since the rotation angle θ from the initial position of the display unit 3 is approximately 90 degrees, the inclination θ0 is approximately 0 degrees. In step S57, the CPU 8 writes the calculated inclination θ0 of the device body 2 in the EPROM 7. As described above, when the inclination θ0 of the device main body 2 is not stored in the EPROM 7, the CPU 8 has information indicating that the display unit 3 is positioned at the discharge position and the display unit 3 is in a state parallel to the vertical direction. When input, the inclination θ 0 of the device main body 2 with respect to the instrument panel D is calculated based on the rotation angle θ detected by the encoder 19 and written in the EPROM 7.

  As shown in FIG. 2, when the display unit 3 is ejected out of the device main body 2 and positioned at the visual recognition position with the display unit 3 positioned at the accommodation position, first, the CPU 8 performs steps in FIG. 11. In S <b> 1, it is determined whether or not the operation button 14 for ejecting the display unit 3 out of the device main body 2 among the operation buttons 14, that is, for positioning the display unit 3 at the visual recognition position, is operated. The CPU 8 repeats step S1 until the discharge operation button 14 of the display unit 3 is operated. When the discharge operation button 14 of the display unit 3 is operated, the process proceeds to step S2.

  In step S2, CPU8 acquires the information which shows inclination (theta) 0 as an attachment angle of the apparatus main body 2 from EPROM7, and progresses to step S3. Step S2 is a detection step of reading the inclination θ0 of the device main body 2. In step S3, the CPU 8 reads the drive voltage tables 30A and 30B from the ROM 6, extracts the voltages of the motors 22 and 25 corresponding to the inclination θ0 of the device body 2 from the drive voltage tables 30A and 30B, and goes to step S4. move on.

  In step S4, the CPU 8 applies the voltage according to the drive voltage table 30A described above to the first motor 22, and proceeds to step S5. Step S4 is a control step of moving the display unit 3 under the driving conditions according to the stored driving voltage table 30A based on the inclination θ0 of the device body 2 detected in the detection step. Then, as shown in FIG. 3, the display unit 3 is gradually discharged from the apparatus main body 2.

  In step S <b> 5, the CPU 8 determines whether or not the second switch 17 described above is turned on after a predetermined time has elapsed since starting to drive the first motor 22. That is, in step S5, the CPU 8 determines whether or not the display unit 3 described above is positioned at the initial position of the discharge position shown in FIG. 4 after a predetermined time has elapsed since the first motor 22 started to be driven. judge. When the CPU 8 determines that the above-described display unit 3 is positioned at the initial position of the discharge position shown in FIG. 4, the CPU 8 stops the first motor 22 and the above-described display unit 3 is not positioned at the initial position of the discharge position. If determined, the first motor 22 is urgently stopped.

  Then, based on the inclination θ0 of the device main body 2 detected in the detection step, the CPU 8 applies a voltage under the driving conditions stored in the stored driving voltage table 30B to the second motor 25 to display the display unit 3. Is positioned at the visual recognition position shown in FIG. Note that the CPU 8 urgently stops the second motor 25 if the display unit 3 is not positioned at the visual recognition position of the discharge position even after a predetermined time has elapsed since the start of driving the second motor 25. To do.

  Further, as shown in FIG. 5, when the display unit 3 is accommodated in the device main body 2 with the display unit 3 positioned at the visual recognition position, first, the CPU 8 performs step S11 in FIG. It is determined whether or not the operation button 14 for accommodating the display unit 3 in the device main body 2 among the operation buttons 14, that is, for positioning the display unit 3 at the accommodation position, has been operated. The CPU 8 repeats step S11 until the accommodating operation button 14 of the display unit 3 is operated. When the accommodating operation button 14 of the display unit 3 is operated, the process proceeds to step S12.

  In step S12, the CPU 8 acquires information indicating the inclination θ0 as the mounting angle of the device main body 2 from the EPROM 7, and proceeds to step S13. In step S13, the CPU 8 reads out the drive voltage tables 30A and 30B from the ROM 6, extracts the voltages of the motors 22 and 25 corresponding to the inclination θ0 of the device body 2 from the drive voltage tables 30A and 30B, and goes to step S14. move on.

  In step S14, the CPU 8 applies a voltage according to the drive voltage table 30B to the second motor 25 and proceeds to step S15. In step S <b> 15, the CPU 8 uses the information indicating the orientation of the display unit 3 stored in the EPROM 7 (the rotation direction and the rotation angle from the initial position around the one end 3 c of the display unit 3) and the information from the encoder 19. Based on this, the second motor 25 is driven until the display unit 3 is positioned at the initial position of the discharge position, and the display unit 3 is rotated about the one end 3c. The CPU 8 urgently stops the second motor 25 when a predetermined time elapses after the second motor 25 starts to be driven.

  When the display unit 3 is positioned at the initial position of the discharge position, the CPU 8 stops the second motor 25 and applies the voltage according to the drive voltage table 30 </ b> A described above to the first motor 22. In step S15, the CPU 8 determines whether or not the first switch 16 described above has been turned on after a predetermined time has elapsed since the first motor 22 started to be driven. That is, in step S15, the CPU 8 determines whether or not the above-described display unit 3 has been positioned at the accommodation position after a predetermined time has elapsed since the first motor 22 started to be driven. When the CPU 8 determines that the above-described display unit 3 is positioned at the storage position, the CPU 8 stops the first motor 22, and when the CPU 8 determines that the above-described display unit 3 is not positioned at the storage position, the CPU 8 makes the first motor 22 emergency. Stop.

  In this way, the CPU 8 moves the display unit 3 between the accommodation position and the discharge position. Thus, when moving the display unit 3, the CPU 8 applies voltages according to the drive voltage tables 30 </ b> A and 30 </ b> B to the motors 22 and 25 based on the inclination θ <b> 0 as the mounting angle of the device body 2 and stores them in the ROM 6. The drive mechanism 4 is controlled under the drive conditions of the drive voltage tables 30A and 30B.

  According to the present embodiment, the car navigation system 1 determines in advance the drive conditions of the drive mechanism 4 for each inclination θ0 as the mounting angle of the device body 2, and the drive mechanism 4 under the drive conditions according to the inclination θ0 of the device body 2. By driving the driving mechanism 4, the driving mechanism 4 can be driven under appropriate driving conditions for the inclination θ0 in which the display unit 3 is easy to move and the inclination θ0 in which the display unit 3 is difficult to move. For this reason, the car navigation system 1 can prevent the drive mechanism 4 from continuing to be driven even if the movement of the display unit 3 stops in the middle, and the voltage applied to the motors 22 and 25 of the drive mechanism 4 that drives the display unit 3. And the load applied to the drive mechanism 4 that drives the display unit 3 can be suppressed as much as possible.

  Further, the car navigation 1 inputs that the display unit 3 is in a state parallel to the vertical direction after the display unit 3 is positioned at the discharge position when the inclination θ0 of the device body 2 is not stored in the EPROM 7. Then, based on the rotation angle θ of the display unit 3, the CPU 8 calculates the inclination θ 0 of the device body 2 and writes it in the EPROM 7. For this reason, since the inclination θ0 of the device body 2 can be input after the car navigation 1 is attached to the instrument panel D, the drive mechanism 4 can be driven based on the accurate inclination θ0.

  Furthermore, the car navigation 1 determines in advance the voltage to be applied to the motors 22 and 25 of the drive mechanism 4 for each inclination θ0, and changes the voltage to be applied to the motors 22 and 25 in accordance with the inclination θ0 of the device body 2. ing. For this reason, when the display unit 3 is difficult to move, the voltage applied to the motors 22 and 25 is increased to shorten the time required to move the display unit 3, and the time-out period (that is, after the operation is started). Can be prevented from becoming longer, and when the display unit 3 is easy to move, the voltage applied to the motors 22 and 25 can be reduced to save power. It becomes.

  In the above-described embodiment, the case where the inclination θ0 as the mounting angle of the device main body 2 with respect to the instrument panel D is substantially 0 degrees, of course, in the present invention, as shown in FIGS. The inclination θ0 may have an angle. FIG. 14 shows a case where the inclination θ0 is about +30 degrees and the rotation angle θ of the display unit 3 in step S55 is about 60 degrees. FIG. 15 shows a case where the inclination θ0 is about −30 degrees and the rotation angle θ of the display unit 3 in step S55 is approximately 120 degrees.

  In the illustrated example described above, driving conditions such as the driving voltages of the motors 22 and 25 are appropriately changed in consideration of only the inclination θ of the device body 2 with respect to the horizontal direction of the arrow Y. However, in the present invention, in consideration of the inclination of the device body 2 with respect to the horizontal direction of the arrows X and Z other than the inclination θ0 of the device body 2 with respect to the horizontal direction of the arrow Y, the drive conditions such as the drive voltages of the motors 22 and 25 are set. You may change suitably. That is, in the present invention, the driving conditions such as the driving voltages of the motors 22 and 25 may be changed as appropriate in consideration of the inclination or posture of at least one of the directions of the device body 2 with respect to the horizontal direction.

  In the above-described embodiment, the width direction of the device main body 2 and the vehicle width direction X of the vehicle match, the depth direction of the device main body 2 matches the front-rear direction Y of the vehicle, and the thickness direction of the device main body 2 The case where the height direction Z of a motor vehicle corresponds is shown. However, in the present invention, the width direction of the device main body 2 and the vehicle width direction X of the vehicle do not have to match, and the depth direction of the device main body 2 and the front-rear direction Y of the vehicle do not need to match. The thickness direction of the main body 2 and the height direction Z of the automobile may not coincide with each other. In short, in the present invention, the driving condition of the drive mechanism 4 is determined in advance for each inclination θ0 of the device main body 2 with respect to the horizontal direction, and is determined based on the inclination of the device main body 2 with respect to the horizontal direction detected by the detecting means. What is necessary is just to drive the drive mechanism 4 on drive conditions.

  Moreover, in the Example mentioned above, the voltage applied to the motors 22 and 25 as drive conditions is shown. However, in the present invention, other driving conditions of voltage may be used as the driving conditions. In the above-described embodiment, only one type of driving condition is changed for each inclination θ0. However, in the present invention, for each inclination θ0, a plurality of driving conditions such as changing both the voltage and the other driving conditions described above may be appropriately changed.

  In the above-described embodiment, the inclination θ0 is written in the EPROM 7 by actually driving the display unit 3. However, in the present invention, the inclination θ0 may be written in the EPROM 7 in advance at the time of factory shipment.

  According to the embodiment described above, the following car navigation system 1 is obtained.

(Supplementary note) The device body 2 attached to the instrument panel D;
A display unit 3 that is movable in and out of the device body 2 and capable of displaying information;
The display unit 3 is moved between a housing position in the device main body 2 and a discharge position discharged from the housing position to the outside of the device main body 2, and at the discharge position, the one end 3c is the center. In the car navigation system 1 provided with a drive mechanism 4 for rotating the display unit 3,
The inclination θ0 of the device body 2 with respect to the instrument panel D, the drive condition of the drive mechanism 4 when the display unit 3 is moved from the storage position toward the discharge position, and from the discharge position toward the storage position. A relationship 30A with the driving condition of the transfer means when moving the display unit,
The inclination θ0 of the device main body 2 with respect to the instrument panel D, the drive condition of the drive mechanism 4 when the display unit 3 is raised by rotating around the one end 3c at the discharge position, and the position at the discharge position ROM 6 storing both the relationship 30B and the drive condition of drive mechanism 4 when rotating display unit 3 by rotating about one end 3c,
An EPROM 7 storing the inclination θ0 of the device body 2 with respect to the instrument panel D;
A car navigation system 1 comprising: a CPU 8 that controls the drive mechanism 4 under the drive conditions 30A, 30B stored in the ROM 6 based on the inclination θ of the device body 2 stored in the EPROM 7. .

  According to the supplementary note, the car navigation system 1 determines the driving condition of the driving mechanism 4 in advance for each inclination θ0 of the device main body 2, and drives the driving mechanism 4 under the driving condition according to the inclination θ0 of the device main body 2. It is possible to drive the drive mechanism 4 under an appropriate driving condition at an inclination θ0 in which the display unit 3 is easy to move or an inclination θ0 in which the display unit 3 is difficult to move. For this reason, the car navigation system 1 can prevent the drive mechanism 4 from continuing to be driven even if the movement of the display unit 3 stops in the middle, and the voltage applied to the motors 22 and 25 of the drive mechanism 4 that drives the display unit 3. And the load applied to the drive mechanism 4 that drives the display unit 3 can be suppressed as much as possible.

  In addition, the Example mentioned above only showed the typical form of this invention, and this invention is not limited to an Example. That is, various modifications can be made without departing from the scope of the present invention.

1 is a perspective view showing a state in which a car navigation system as an electronic apparatus according to an embodiment of the present invention is attached to an instrument panel of a car. FIG. 2 is a perspective view illustrating a state in which the display unit of the car navigation system illustrated in FIG. 1 is positioned at a storage position. FIG. 3 is a perspective view illustrating a state where the display unit illustrated in FIG. 2 is gradually discharged from the housing. FIG. 4 is a perspective view illustrating a state in which the display unit illustrated in FIG. 3 is positioned at an initial position of a discharge position. It is a perspective view which shows the state which the display unit shown by FIG. 4 displaced to the visual recognition position from the initial position of a discharge position. It is sectional drawing of the principal part of the car navigation shown by FIG. It is sectional drawing of the principal part of the car navigation shown by FIG. It is a block diagram which shows the main structures of the car navigation shown by FIG. It is explanatory drawing explaining the inclination of the car navigation shown by FIG. It is a flowchart at the time of writing inclination in the EPROM of the car navigation shown in FIG. It is a flowchart at the time of the car navigation shown by FIG. 1 moving a display unit from the accommodation position to the visual recognition position of a discharge position. It is a flowchart at the time of the car navigation shown by FIG. 1 moving a display unit from the visual recognition position of a discharge position to an accommodation position. (A) is explanatory drawing which shows the drive voltage table which shows the voltage applied to the motor which ROM of the car navigation shown in FIG. 8 memorize | stored, (b) is memorize | stored in ROM of the car navigation shown in FIG. It is explanatory drawing which shows the drive voltage table which shows the voltage applied to the made 2nd motor. It is explanatory drawing which looked at the state by which the car navigation shown by FIG. 9 was attached to the instrument panel with another inclination from the side. It is explanatory drawing which looked at the state by which the car navigation shown by FIG. 9 was attached to the instrument panel with still another inclination from the side.

Explanation of symbols

1 Car navigation system (electronic equipment)
2 Device body 3 Display unit (display unit)
4 Drive mechanism (transfer means)
6 ROM (first storage means)
7 EPROM (second storage means)
8 CPU (control means)
22 1st motor 25 2nd motor 30A, 30B Drive voltage table (relation)
θ rotation angle θ0 inclination (mounting angle)
D Instrument panel (attachment)

Claims (3)

A device main body to be attached to the attachment;
A display unit that is movable inside and outside the device body and capable of displaying information;
The display unit is moved between a storage position to be stored in the device main body and a discharge position discharged from the storage position to the outside of the device main body, and the display unit is centered on one end at the discharge position. In an electronic device comprising a transfer means for rotating,
The mounting angle of the device main body with respect to the attached object, the driving condition of the transfer means when moving the display unit from the storage position toward the discharge position, and the discharge position toward the storage position The relationship between the driving conditions of the transfer means when moving the display unit,
The mounting angle of the device main body with respect to the attached object, the driving condition of the transfer means when the display unit is raised by rotating around the one end at the discharge position, and the one end at the discharge position. A first storage means for storing both of the relationship with the drive condition of the transfer means when rotating the display unit and lowering the display unit;
Second storage means for storing an attachment angle of the device body with respect to the attached object;
Control means for controlling the transfer means under the driving conditions stored in the first storage means based on the mounting angle of the device main body stored in the second storage means. Electronics. Detecting means for detecting a rotation angle around the one end of the display unit at the discharge position;
When the control means does not store the attachment angle of the device main body with respect to the attached object in the second storage means, the display unit is positioned at the discharge position and the display unit is parallel to the vertical direction. When the information indicating the state is input, the mounting angle of the device main body with respect to the attachment object is calculated based on the rotation angle detected by the detection means, and is written in the second storage means. The electronic device according to claim 1, characterized in that: The transfer means includes a first motor that moves the display unit between the accommodation position and the discharge position, and a second motor that rotates the display unit around the one end at the discharge position,
The control means applies a voltage as a driving condition of the transfer means according to the relationship to the first motor and the second motor based on the attachment angle when moving the display unit. The electronic device according to claim 1 or 2.

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