JP2006033623A - Mobile terminal - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mobile terminal capable of setting a solar panel arranged at the mobile terminal nearer to a position perpendicular to the direction of incidence of sunlight. <P>SOLUTION: A body portion 12 is rotated to a direction of A by vibration of a vibrator built in the body portion 12 in a status that an end portion of the body portion 12 is raised using a cover 14 as a leg, as shown at (a). A direction of the body portion 12 is derived when the amount of received light detected by a sunlight sensor on a rear face of the cover 14 (a face at the back side in the Figure) reaches a maximum value during the rotation. The direction of the body portion 12 is set to the derived direction by vibration of the vibrator and it results in a status of (b). Next, an angle made by the cover 14 and the body portion 12 is changed by rotating the cover 14 around an axis 12A with a driving motor. An angle is derived when the amount of received light reaches to a maximum value during the rotation. The position of the cover is set so that the angle is established. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a mobile terminal including a cover that covers at least a part of an operation surface, and a solar panel that is installed on both surfaces of the cover and at least one of the operation surfaces of the mobile terminal body.

  Mobile terminals such as mobile phones and PDAs operate with power supplied from a built-in battery, but the charge capacity of the battery is limited. Therefore, a solar panel with the function of receiving sunlight and generating electricity is installed on a predetermined surface of the mobile terminal, and when the mobile terminal is not in use, it receives sunlight and generates electricity to charge the battery. Technology to plan is known.

  Here, when receiving sunlight, it is desirable from the viewpoint of light reception efficiency that the solar panel is brought close to a position perpendicular to the incident direction of sunlight. For this reason, the solar panel is often installed on a surface capable of providing a predetermined angle with respect to the operation surface, such as a cover surface of the operation surface of the mobile terminal.

By the way, the cover also serves as a stand for lifting and supporting one end of the mobile terminal body as described in Patent Document 1 below. In such a state (hereinafter referred to as “lifted state”), it is easy for the user to see the display screen and the key operation unit on the operation surface, and it is possible to view a moving image and use a videophone. Such a lifted state is expected to be seen in many usage scenes of mobile terminals in the future.
JP 2000-187528 A

  However, no technology has been proposed for optimizing the position of the solar panel so that it is closer to a position perpendicular to the incident direction of sunlight in the lifted state of the mobile terminal, and such technology is highly anticipated. It was. In addition, a technique for optimizing the position of the solar panel so that it is closer to a position perpendicular to the incident direction of sunlight, not limited to the lifted state, has been highly desired.

  The present invention has been made to solve the above-described problems, and the solar panel provided in the mobile terminal can be automatically set closer to a position perpendicular to the incident direction of sunlight. An object is to provide a portable terminal that can be used.

  The inventor of the present application sets the solar panel close to a position perpendicular to the incident direction of sunlight, and optimizes the orientation of the mobile terminal body, and the cover and the mobile terminal body in the lifted state. And invented a technique for optimizing the angle formed.

  Among these, techniques for optimizing the orientation of the mobile terminal body are as follows.

  In order to achieve the above object, a mobile terminal according to the present invention is a mobile terminal provided with an operation surface, and is rotatable about an axis in the vicinity of one end of the mobile terminal body, and at least one of the operation surfaces. A cover configured to switch between a closed state covering a portion and an open state after being rotated about the axis, and solar installed on at least one of the both surfaces of the cover and the operation surface of the mobile terminal body A panel, a solar sensor that is installed on the same surface as the solar panel and detects the amount of received sunlight on the surface, a driving unit that rotates the mobile terminal body, and an orientation measurement that measures the orientation of the mobile terminal body And the driving means rotate the portable terminal main body by a predetermined angle or a predetermined time, and the received light amount detected by the sunlight sensor during the rotation and the azimuth measurement at the time of the detection. Storing the orientation of the mobile terminal body measured by the device, and deriving the orientation of the mobile terminal body when the amount of light received during the rotation is maximized, and rotating the mobile terminal body by the drive means And azimuth setting control means for setting the orientation of the mobile terminal body to the azimuth derived by the azimuth derivation control means.

  In the portable terminal configured as described above, the solar panel is installed on at least one of the cover and the operation surface of the portable terminal body, and the azimuth derivation control means is the portable terminal for a predetermined angle or a predetermined time by the driving means. Rotating the main body, storing the received light amount detected by the sunlight sensor during the rotation and the orientation of the mobile terminal main body measured by the azimuth measuring device at the time of the detection, and the mobile terminal when the received light amount during the rotation becomes maximum Deriving the orientation of the body.

  Here, when the mobile terminal body is rotated by the driving means, the solar panel may be rotated while being inclined with respect to the horizontal direction, or the solar panel is rotated without being inclined with respect to the horizontal direction. You may let them. That is, the solar panel may be tilted before the mobile terminal body is rotated, or may be tilted after the mobile terminal body is rotated. For example, when a mobile device exists in an environment where a place where light hits and a place where little light hits, the mobile terminal itself can be rotated without tilting the solar panel to It is possible to derive the orientation (orientation) of the mobile terminal body that is exposed to light.

  Then, the azimuth setting control means sets the orientation of the mobile terminal body to the azimuth derived by the azimuth derivation control means as described above by rotating the mobile terminal body by the driving means. In this way, the orientation (orientation) of the mobile terminal body can be set to the orientation at which the amount of received sunlight is maximized.

  In addition, the above-described driving means can be configured by a vibrator that is built in a position shifted from the center of the mobile terminal body and has a function of rotating the mobile terminal body by vibrating the mobile terminal body.

  Further, as described above, the orientation derivation control means may be configured to rotate the mobile terminal body in a predetermined state where the solar panel is inclined with respect to the horizontal direction when the mobile terminal body is rotated by the driving means. As the “predetermined state”, for example, a state in which one end of the mobile terminal body is lifted using the cover as a leg and the angle formed by the cover and the mobile terminal body is maintained constant can be employed. .

  The portable terminal further includes a rotation driving unit that rotates the cover about the axis, and the azimuth derivation control unit rotates the cover by a predetermined trigger from the closed state by a predetermined trigger from the closed state. It is desirable that the mobile terminal main body has an initial state. In this case, the initial state of the mobile terminal body can be automatically formed. As the “predetermined trigger”, a timing at which a user of the mobile terminal performs a predetermined operation, a timing at which light reception by the sunlight sensor is detected, or the like can be employed.

  Next, a technique for optimizing the angle formed by the cover and the mobile terminal body in the lifted state is as follows.

  In order to achieve the above object, a mobile terminal according to the present invention is a mobile terminal having an operation surface, and is rotatable about an axis in the vicinity of one end of the mobile terminal body, and at least a part of the operation surface A cover configured to switch between a closed state covering the cover and an open state after being rotated about the shaft, rotational drive means for rotationally driving the cover about the shaft, both sides of the cover, and an operation surface of the mobile terminal body A solar panel installed on at least one surface, a solar sensor installed on the same surface as the solar panel for detecting the amount of received sunlight on the surface, and one end of the mobile terminal body using the cover as a leg The cover and the mobile terminal main body are rotated by rotational driving means in an initial state in which the angle formed by the lifted cover and the mobile terminal main body is kept constant. The amount of light received by the sunlight sensor during the rotation drive and the drive amount from the initial state of the rotation drive means at the time of the detection are stored, and the amount of light received during the rotation drive is maximized. A driving amount deriving control unit for deriving the driving amount of the rotation driving unit, and the cover and the portable terminal by rotating the cover from the initial state by the rotation driving unit by the driving amount derived by the driving amount deriving control unit An angle setting control means for setting an angle formed with the main body is provided.

  In the mobile terminal having the above-described configuration, it is possible to realize an initial state in which one end of the mobile terminal body is lifted using the cover as a leg portion and the angle formed by the cover and the mobile terminal body is kept constant. In this initial state, the drive amount derivation control means changes the angle formed by the cover and the mobile terminal body by rotationally driving the cover by the rotational drive means, and receives the light detected by the sunlight sensor during the rotational drive. The amount and the drive amount from the initial state of the rotation drive means at the time of the detection are stored, and the drive amount of the rotation drive means when the light reception amount during the rotation drive becomes maximum is derived. Then, the angle setting control means sets the angle formed by the cover and the mobile terminal body by rotationally driving the cover from the initial state by the rotational drive means by the drive amount derived by the drive amount derivation control means.

  In this way, in the lifted state of the mobile terminal, the angle formed by the cover and the mobile terminal body can be set to the angle when the amount of received sunlight is maximized, so the solar panel can be set in the direction of sunlight incident. However, it can be automatically set to be closer to a vertical position.

  In the portable terminal, the driving amount derivation control unit may be configured to form an initial state of the portable terminal body by rotating the cover by a predetermined driving amount from the closed state by the rotation driving unit by a predetermined trigger. desirable. In this case, the initial state of the mobile terminal body can be automatically formed. Note that the “predetermined trigger” described above can also employ the timing when the user of the mobile terminal performs a predetermined operation, the timing when the sunlight sensor detects light reception, etc., as described above. .

  According to the present invention, the azimuth (orientation) of the mobile terminal body can be set to the azimuth when the amount of received sunlight is maximum, so that the solar panel can be more vertically positioned with respect to the incident direction of sunlight. It can be automatically set to be close.

  In addition, in the lifted state of the mobile terminal, the angle between the cover and the mobile terminal body can be set to the angle when the amount of received sunlight is maximized, so the solar panel can be set perpendicular to the incident direction of sunlight. It can be automatically set closer to the position.

  Hereinafter, an embodiment of a portable terminal of the present invention will be described with reference to the drawings. Hereinafter, a case of a mobile phone will be described as an example of the mobile terminal. Needless to say, the present invention can also be applied to mobile terminals other than mobile phones, such as PHS, PDA, notebook personal computers, and wearable computers.

[Configuration of mobile phone]
FIG. 1 shows an example of the configuration of a mobile phone 10 having the features of the present invention. As shown in FIG. 1, the mobile phone 10 includes a main body 12 and a cover 14. The main body 12 has a display 11 for displaying images, characters, numbers, and the like, and inputs of characters, numbers, and the like. And an input operation unit 13 for operating instructions and the like. The cover 14 is rotatable around a shaft 12A passing through the vicinity of the upper end of the main body 12 along the short side direction, and is rotated around the shaft 12A and the closed state covering the display unit 11 as shown in FIG. It is comprised so that it may switch to the open state after.

  FIG. 2 shows a main configuration of the mobile phone 10. The main body 12 includes a controller 20 that controls the operation of the mobile phone 10, a battery 22 as a power supply source for each part of the mobile phone 10, and a left lower end portion in FIG. 2, and vibrates the main body 12. Thus, a vibrator 24 having a function of rotating the main body 12, a compass 26 for measuring the orientation in which the main body 12 is located, and a drive unit 28 for rotating the cover 14 around the shaft 12 </ b> A are provided. ing. As shown in FIG. 3A, the drive unit 28 counts the number of rotations of the drive motor 28B, a drive circuit 28A that starts and stops the drive motor 28B under the control of the controller 20, and the drive motor 28B. It is comprised from the rotation speed measuring device 28C.

  The surface of the cover 14 that appears when the cover 14 is opened as shown in FIG. 2 includes a solar panel 16 having a function of receiving sunlight and generating power, and the sun that detects the amount of received sunlight on the surface. An optical sensor 18 is provided. As shown in FIG. 3B, the solar panel 16 supplies electric power obtained by receiving sunlight and generating power to the battery 22, and the electric power is stored in the battery 22.

  As shown in FIG. 3A, the controller 20 is connected to each of the sunlight sensor 18, the vibrator 24, the compass 26, and the drive unit 28 via a control line (not shown), and the sunlight from the sunlight sensor 18. The received light amount detection value, the orientation measurement value of the main body from the compass 26, and the rotational speed information of the drive motor 28B from the rotational speed measuring device 28C can be taken in.

  In addition, the controller 20 has a built-in memory 20A in which an execution control program for a processing operation described later (FIGS. 9 to 12) is stored, and a received light amount detection value of sunlight from the solar sensor 18 during the processing operation. The data can be stored in the memory 20A.

  As shown in FIG. 4, the vibrator 24 includes a motor 24B and a drive circuit 24A for starting and stopping the motor 24B under the control of the controller 20, and a tip of the rotating shaft 24C of the motor 24B has a semi-finished portion. A cylindrical rotor 24D is installed. Since the center of gravity of the rotor 24D is deviated from the rotating shaft 24C, when the rotor 24D rotates with the rotation of the motor 24B, centrifugal force is generated around the rotating shaft 24C, and the vibrator 24 vibrates. This vibration is transmitted to the entire mobile phone 10, and the entire mobile phone 10 vibrates. The inventor of the present application rotates the main body 12 in the direction of arrow A in the lifted state shown in FIG. I discovered that. Utilizing this phenomenon, the following optimization processing for the orientation was invented.

[Mobile phone operation]
In the mobile phone 10 in the present embodiment, a series of processes shown in FIG. 9 is executed under the control of the controller 20. That is, the initial setting process (S1) of the lifted state, the azimuth optimization process (S2), and the formation angle optimization process (S3) are sequentially executed. The trigger for starting execution of the series of processes is timing when the user of the mobile phone 10 performs a predetermined execution instruction operation using the input operation unit 13. In addition, you may employ | adopt as the said trigger the timing etc. which received light reception of sunlight with the sunlight sensor 18 other than that.

  Hereinafter, these processes will be described in order.

  FIG. 10 shows a flowchart of the initial setting process in the lifted state. The “lifted state” means a state in which the cover 14 lifts and supports one end of the main body 12 as shown in FIGS. 5B and 6. Further, the angle α (see FIG. 6) formed by the cover 14 and the main body 12 in this lifted state is hereinafter referred to as “formation angle”.

  The controller 20 performs the following control in the initial setting process of the lifted state in FIG. First, the cover 14 is opened by starting the drive motor 28B by the drive circuit 28A in the drive unit 28 (S10). As a result, the cover 14 gradually opens from the closed state of FIG. 1, passes through the state as shown in FIG. 5A, and finally the cover 14 lifts one end of the main body 12. At this time, the rotational speed of the drive motor 28B is counted by the rotational speed measuring device 28C, and the count result (rotational speed information of the drive motor 28B) is input to the controller 20.

  The operation of S10 is performed until the controller 20 determines that the rotational speed of the drive motor 28B has reached a predetermined initial state setting rotational speed (predetermined rotational speed) (until an affirmative determination is made in S11). When it is determined that the rotational speed of the drive motor 28B has reached the predetermined rotational speed, the drive motor 28B is stopped (S12). Thereby, the initial setting of the lifted state as shown in FIGS. 5B and 6 is completed. In this way, an initial state regarding the lifted state can be automatically formed.

  In addition, as shown in FIG. 6, the state of this example in which the cover 14 stands substantially perpendicular to the base 90 is merely an example of the initial state, and the initial state is not limited to this. Further, in S11, it may be determined whether or not the elapsed time after starting the drive motor 28B has reached a predetermined time.

  FIG. 11 shows a flowchart of the orientation optimization process. The controller 20 performs the following control in the azimuth optimization process of FIG. First, in the state after completion of the initial setting of the lifted state (FIGS. 6 and 7A), the initial azimuth measurement value is fetched from the compass 26, and the fetched initial azimuth measurement value is stored in the memory 20A (S20). . Then, the vibrator 24 is activated (S21). Thereby, the main-body part 12 starts rotation in the arrow A direction of Fig.7 (a).

  Thereafter, the controller 20 captures the received light amount detection value of the sunlight from the solar sensor 18 and the orientation measurement value of the main body 12 from the compass 26, and the captured pair of the received light amount detection value and orientation measurement value is stored in the memory 20A. Store (S22). The process of S22 is performed until the controller 20 determines that the azimuth measurement value has returned to the initial azimuth measurement value stored in the memory in S20 (that is, the main body 12 has made one revolution) (Yes in S23). The vibrator 24 is stopped when it is determined that the azimuth measurement value has returned to the initial azimuth measurement value (S24).

  Next, the controller 20 derives the azimuth measurement value D when the received light amount detection value is maximum from the pair of the received light amount detection value and the azimuth measurement value stored in the memory 20A (S25). Then, the vibrator 24 is activated (S26). Thereby, the main-body part 12 starts rotation again in the arrow A direction of Fig.7 (a).

  Thereafter, the controller 20 takes in the orientation measurement value of the main body 12 from the compass 26 and stores the fetched orientation measurement value in the memory 20A (S27). The process of S27 continues until the controller 20 determines that the azimuth measurement value has reached the azimuth measurement value D derived in S25 (until affirmative determination is made in S28), and the azimuth measurement value is the azimuth measurement value. When it is determined that D has been reached (that is, the direction of the main body 12 is the direction when the detected light amount is the maximum), the vibrator 24 is stopped (S29). As a result, for example, as shown in FIG. 7B, the state in which the azimuth of the main body 12 is set to the azimuth when the received light amount detection value is maximum (the azimuth is optimized) is obtained.

  In S23, in addition to determining whether or not the azimuth measurement value has returned to the initial azimuth measurement value (the main body 12 has made one rotation), the azimuth measurement value is a predetermined value less than 360 degrees from the initial azimuth measurement value. It may be determined whether or not only the angle has changed, or it may be determined whether or not the elapsed time since activation of the vibrator in S21 has reached a predetermined time. In these cases, when setting the orientation of the main body 12 to the orientation measurement value D in S26 to S28, in addition to rotating the main body 12 in the direction of arrow A in FIG. The main body 12 may be rotated. Here, in order to rotate the main body 12 in the direction opposite to the arrow A, another vibrator is installed at the lower right end in FIG. 2, and the other vibrator in the direction opposite to the motor 24B of the vibrator 24 at the lower left end. It is possible to adopt a policy of rotating the main motor unit 12 by rotating the motor.

  FIG. 12 shows a flowchart of the forming angle optimization process. The controller 20 performs the following control in the forming angle optimization process of FIG. First, in the state after the completion of the azimuth optimization process in FIG. 8A, the drive motor 28B is activated to rotate in the direction opposite to the initial setting process in the lifted state (FIG. 10) (S30). As a result, the cover 14 starts to rotate in the direction of arrow B in FIG.

  Thereafter, the controller 20 captures the received light amount detection value of sunlight from the sunlight sensor 18 and the rotational speed information of the drive motor 28B from the rotational speed measuring device 28C, and the captured received light amount detection value and the rotational speed of the drive motor 28B. The information pair is stored in the memory 20A (S31). In the process of S31, the rotational speed of the drive motor 28B is set to a predetermined rotational speed P (that is, to a predetermined search range for searching for the maximum received light amount detection value by rotating the cover 14). The number of revolutions of the drive motor 28B has reached the number of revolutions P (that is, search within a predetermined search range) until it is judged by the controller 20 that the number of revolutions has reached (corresponding number of revolutions). When it is determined that the drive motor 28B has been completed, the drive motor 28B is stopped (S33).

  Next, the controller 20 derives the rotational speed Q of the drive motor 28B when the received light quantity detection value is maximum from the pair of the received light quantity detection value and the rotational speed information of the drive motor 28B stored in the memory 20A. (S34). Then, the drive motor 28B is activated to rotate in the opposite direction to S30 described above (that is, in the same direction (forward direction) as the initial setting process in the lifted state (FIG. 10)) (S35). As a result, the cover 14 starts to rotate in the direction of arrow C in FIG.

  Thereafter, the controller 20 continues until the controller 20 determines that the rotational speed of the drive motor 28B from the rotational speed measuring device 28C has reached (PQ) (until an affirmative determination is made in S36). When it is determined that the rotation speed of 28B has reached (PQ) (that is, the formation angle is the formation angle when the detected light amount is the maximum), the drive motor 28B is stopped (S37). Thus, the formation angle is set to the formation angle when the detected light amount is the maximum (the formation angle is optimized). In S32, it may be determined whether or not the elapsed time from the start of the drive motor (S30) has reached a predetermined time.

  By executing the processes of FIGS. 9 to 12 described above, the direction (orientation) of the main body 12 from the lifted state of the mobile phone 10 is changed to the maximum amount of sunlight received on the installation surface of the solar panel 16. It can be set to the direction. In addition, the angle formed by the cover 14 and the main body 12 from the lifted state of the mobile phone 10 can be set to the angle at which the amount of sunlight received on the installation surface of the solar panel 16 is maximized.

  The initial state shown in FIGS. 5B and 6 may be manually formed by the user of the mobile phone 10 in addition to being automatically formed by the initial setting process shown in FIG.

  In the above-described embodiment, the form in which both the azimuth optimization process (FIG. 11) and the formation angle optimization process (FIG. 12) are executed has been described. However, even if only one of the processes is executed. effective. That is, if the orientation optimization process is executed, the orientation (orientation) of the main body 12 from the lifted state of the mobile phone 10 is changed to the optimum orientation (when the amount of sunlight received on the installation surface of the solar panel 16 is maximized). (Azimuth) can be automatically set. Further, if the formation angle optimization process is executed, the formation angle formed by the cover 14 and the main body 12 from the lifted state of the mobile phone 10 is set to the optimum angle (the amount of sunlight received on the installation surface of the solar panel 16 is maximized). Angle).

  Further, the order in which the azimuth optimization process (FIG. 11) and the formation angle optimization process (FIG. 12) are performed is not limited to the order of the flowchart of FIG. One process may be executed.

  In addition to the configuration of the above-described embodiment, the following configuration can be adopted as the configuration of the mobile phone 10, and the same operations and effects can be achieved.

  For example, the cover 14 in FIG. 1 may cover the entire operation surface of the main body 12 (the surface on which the input operation unit 13 is provided).

  The mobile phone 10 may be a so-called “two-fold mobile phone”. That is, the input operation unit is provided on the “folded one side”, the display unit is provided on the “other side”, a transparent solar panel is pasted on the display unit, and the “other side” is illustrated in FIG. A configuration that plays the role of the cover 14 may be adopted. In addition, the two-fold mobile phone may be configured to be folded in two along the short side direction in the vicinity of the upper end of the main body 12 as shown in FIG. A structure that is folded in half along the long side direction in the vicinity of the right end portion) may be used.

  Moreover, about the solar panel 16, although the structure provided only in the back surface (surface which appears when the cover 14 is opened) was shown in the said embodiment, it is not limited to this structure, The solar panel 16 The cover 14 can be provided on one or more surfaces of the front surface, the back surface, and the operation surface of the main body 12 (for example, a mode in which a transparent solar panel is pasted on the display unit 11). At this time, the solar sensor 18 is also provided on the same surface as each of the solar panels 16. For example, when the solar panel 16 is provided on two or more surfaces, the total amount of received light amount detection values by the solar sensors 18 on these two or more surfaces may be adopted as the received light amount. You may employ | adopt the received light amount detection value by the sunlight sensor 18 on the defined main surface.

  The means for rotating the main body 12 of the mobile phone 10 is not limited to the vibrator 24 described above, and for example, a roller rotation mechanism 30 shown in FIG. 13 may be adopted. FIG. 13A shows a perspective view of the roller rotation mechanism 30 installed in the main body 12 from the horizontal side. The roller rotation mechanism 30 is a motor under the control of the motor 30B and the controller 20 described above. And a drive circuit 30A for starting and stopping 30B, and a cylindrical roller 30D is installed at the tip of the rotating shaft 30C of the motor 30B. Since the lower surface of the roller 30D protrudes slightly below the bottom surface 12B of the main body 12, when the main body 12 is placed on a table, the lower surface of the roller 30D directly contacts the table and the roller 30D rotates. The main body 12 also rotates. In addition, as energy used as the drive source of the motor 30B, the light energy of the sunlight received by the solar panel is used. FIG. 13B shows a plan view of the main body 12, and the roller rotation mechanism 30 is provided in a portion 12 </ b> C closer to the upper end than the center of the main body 12, as shown in FIG. 13C. In addition, the roller rotation mechanism 30 is configured symmetrically.

  By driving the motor 30B from the state shown in FIG. 14A and rotating the roller 30D in the direction of the arrow D, the main body 12 has a small portion around the lower end than the central portion of the main body 12. It rotates by an angle and reaches the position indicated by the solid line in FIG. 14B (the broken line in FIG. 14B indicates the original position).

  As described above, the roller rotating mechanism 30 shown in FIG. 13 can also be adopted as means for rotating the main body 12 of the mobile phone 10.

  By the way, in the above-described embodiment, the example of optimizing the direction from the “lifting state of the mobile phone 10” has been described for the “technology for optimizing the direction of the mobile terminal body”, but the present invention is not limited to this. The present invention can be widely applied when optimizing the azimuth from “the state where the solar panel is inclined from the horizontal direction”. As for `` the state where the solar panel is inclined from the horizontal direction '', (1) the state where the solar panel is inclined from the horizontal direction by opening the cover provided with the solar panel on the surface and inclining from the horizontal direction, ( 2) Realized when the mobile phone's main unit is placed on a horizontal surface, because the main unit's operation surface itself is tilted from the horizontal direction. Etc.

  Further, the present invention is not limited to optimizing the azimuth from “the state where the solar panel is inclined from the horizontal direction”. May be processed in the order of deriving the maximum orientation) and then tilting the solar panel. For example, when a mobile phone is present in an environment where a place where light hits and a place where little light hits, the mobile phone itself can be rotated without tilting the solar panel. It is possible to quickly derive the orientation (orientation) of the mobile phone body that is exposed to light.

1 is an external view of a mobile phone according to an embodiment of the present invention. It is a figure which shows the main structures of a mobile telephone. (A) is a block diagram of a control system including a controller, and (b) is a block diagram related to power generation and charging. It is a schematic block diagram of a vibrator. It is a figure for demonstrating the initial setting process of a lifting state, (a) shows the state in the middle of opening a cover, (b) shows the state which the initial setting process was completed, respectively. It is a side view of the mobile phone in a state where the initial setting process is completed. It is a figure for demonstrating the optimization process of an azimuth | direction, (a) shows the state at the time of start, and (b) shows the state which the azimuth | direction optimization process completed, respectively. It is a figure for demonstrating the formation angle optimization process, (a) shows the state at the time of start, (b) shows the intermediate state of the formation angle optimization process, respectively. It is a flowchart which shows a series of processes in a mobile telephone. It is a flowchart which shows the subroutine of the initialization process of a lifting state. It is a flowchart which shows the subroutine of the optimization process of direction. It is a flowchart which shows the subroutine of the formation angle optimization process. (A) is the figure which saw through the roller rotation mechanism installed in the main-body part from horizontal direction, (b) is a top view of a main-body part, (c) is an enlarged view of the site | part 12C. (A) is a figure which shows the initial state in operation | movement description of a roller rotating mechanism, (b) is a figure which shows the state before and behind rotation.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Mobile phone, 11 ... Display part, 12 ... Main body part, 12A ... Axis, 13 ... Input operation part, 14 ... Cover, 16 ... Solar panel, 18 ... Solar sensor, 20 ... Controller, 20A ... Memory, 22 ... Battery, 24 ... Vibrator, 24A ... Drive circuit, 24B ... Motor, 24C ... Rotating shaft, 24D ... Rotor, 26 ... Compass, 28 ... Drive unit, 28A ... Drive circuit, 28B ... Drive motor, 28C ... Rotational speed measuring instrument 30 ... roller rotation mechanism, 30A ... drive circuit, 30B ... motor, 30C ... rotating shaft, 30D ... roller, 90 ... stand.

Claims (7)

A mobile terminal with an operation surface,
A cover configured to be rotatable about an axis in the vicinity of one end of the mobile terminal body and configured to switch between a closed state covering at least a part of the operation surface and an open state after being rotated about the axis; ,
A solar panel installed on at least one of the cover and the operation surface of the mobile terminal body; and
A solar sensor that is installed on the same surface as the solar panel and detects the amount of sunlight received on the surface;
Driving means for rotating the mobile terminal body;
An orientation measuring device for measuring the orientation of the mobile terminal body;
The mobile device body is rotated by a predetermined angle or a predetermined time by the driving means, and the received light amount detected by the sunlight sensor during the rotation and the orientation of the mobile device body measured by the orientation measuring device at the time of the detection are stored. Azimuth derivation control means for deriving the azimuth of the mobile terminal body when the amount of light received during rotation is maximum;
Azimuth setting control means for setting the orientation of the portable terminal body to the azimuth derived by the azimuth derivation control means by rotating the portable terminal body by the driving means;
Mobile terminal equipped with. The driving means includes
The mobile terminal according to claim 1, wherein the mobile terminal is built in a vibrator that is incorporated at a position shifted from a center of the mobile terminal body and has a function of rotating the mobile terminal body by vibrating the mobile terminal body. . The azimuth derivation control means includes
The portable terminal according to claim 1 or 2, wherein when the portable terminal body is rotated by the driving means, the portable terminal body is rotated in a predetermined state in which the solar panel is inclined with respect to a horizontal direction. Terminal. The predetermined state is:
4. The mobile terminal according to claim 3, wherein one end of the mobile terminal body is lifted with the cover as a leg, and an angle formed by the cover and the mobile terminal body is held constant. A rotation driving means for rotating the cover around the axis;
The azimuth derivation control means includes
Forming an initial state of the mobile terminal body by rotating the cover by a predetermined drive amount from the closed state by a predetermined trigger by a predetermined trigger;
The portable terminal according to claim 1, wherein the portable terminal is a portable terminal. A mobile terminal with an operation surface,
A cover configured to be rotatable about an axis in the vicinity of one end of the mobile terminal body and configured to switch between a closed state covering at least a part of the operation surface and an open state after being rotated about the axis; ,
Rotational drive means for rotationally driving the cover about the axis;
A solar panel installed on at least one of the cover and the operation surface of the mobile terminal body; and
A solar sensor that is installed on the same surface as the solar panel and detects the amount of sunlight received on the surface;
In the initial state in which one end of the mobile terminal body is lifted using the cover as a leg and the angle between the cover and the mobile terminal body is maintained constant, the cover is rotated by the rotation driving means. The angle formed by the cover and the mobile terminal body is changed, and the received light amount detected by the sunlight sensor during the rotational drive and the drive amount from the initial state of the rotational drive means at the time of the detection are stored, and the rotation Drive amount derivation control means for deriving the drive amount of the rotation drive means when the amount of received light during driving is maximized;
An angle setting control means for setting an angle formed by the cover and the mobile terminal main body by rotationally driving the cover from an initial state by the rotational drive means by the drive amount derived by the drive amount derivation control means; ,
Mobile terminal equipped with. The drive amount derivation control means includes
Forming an initial state of the mobile terminal body by rotating the cover by a predetermined drive amount from the closed state by a predetermined trigger by a predetermined trigger;
The mobile terminal according to claim 6.

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