JP2010061767A - In-vehicle device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent chucking error and drop of a recording medium, which may occur in loading/unloading the recording medium under strong vibrations such as in travelling on a rough road. <P>SOLUTION: The in-vehicle device includes: a vibration detecting part 2 to detect vibration; and a control part 3 that receives a request to load/unload the recording medium (CD 10) from the outside, and prohibits execution of the loading/unloading request when the magnitude of the vibration detected by the vibration detecting part 2 exceeds a predetermined value. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention particularly relates to an in-vehicle device suitable for use in an in-vehicle audio device that reproduces an optical recording medium.

  In an in-vehicle CD (Compact Disc) player, loading / unloading of a CD into / from a set is usually realized by using a loading / unloading mechanism (loading / ejecting mechanism) for loading / unloading by rotating a rubber roller or the like by a motor. .

When the loading / ejecting mechanism described above is used, in an environment subject to strong vibration such as running on a rough road, the CD cannot be accurately placed on the turntable when loading the CD into the set. May cause defects.
For this reason, the servo cannot follow due to the surface vibration of the CD, etc., and in some cases, abnormal noise may be generated, making reproduction difficult. Further, when the CD is ejected from the set, if the CD is sandwiched and held by a rubber roller or the like and a strong vibration is applied, the CD may fall off and possibly be damaged.

  In order to prevent the above-described CD from falling off or being damaged, as described in, for example, Patent Document 1, a recording medium such as a CD is read from the take-out position based on vibration detected by a vibration sensor while the vehicle is running. A disk drive device that forcibly moves to a recording position is known.

JP 2006-196032 A

  According to the technique disclosed in Patent Document 1 described above, when vibration exceeding a threshold value occurs during vehicle travel, loading control is performed to move the recording medium at the take-out position to the reading / recording position. It can be avoided that the recording medium is dropped by the vibration and the recording medium is broken or damaged. However, according to the technique disclosed in Patent Document 1, it is impossible to avoid a chucking failure of the disc to the turntable that may be generated by vibration during loading while the vehicle is running.

  The present invention has been made in order to solve the above-described problems. When a recording medium is carried in and out, there is a possibility that the recording medium may not be chucked and dropped out under a strong vibration environment such as traveling on a rough road. An object is to provide an in-vehicle device that can be prevented.

  In order to solve the above-described problems, an in-vehicle device according to the present invention is an in-vehicle device that reproduces information recorded in a recording medium, and receives a vibration detection unit that detects vibration and a recording medium carry-in / out request from the outside. A control unit that prohibits execution of the carry-in / out request when the vibration detected by the vibration detection unit is equal to or greater than a predetermined value.

The in-vehicle device of the present invention is an in-vehicle device that reproduces information recorded in a recording medium,
When a vibration detection unit that detects vibration and a request to carry in a recording medium from the outside is received, the loading of the recording medium is controlled without depending on the value detected by the vibration detection unit, and the vibration detected by the vibration detection unit And a control unit for controlling the unloading of the recording medium when the value becomes equal to or less than a predetermined value and performing the re-loading control.

  According to the in-vehicle device of the present invention, it is possible to prevent the recording medium from being chucked and dropped off which may occur in a strong vibration environment such as traveling on a rough road when the recording medium is carried in and out.

Embodiment 1 FIG.
1 is a block diagram showing a configuration of an in-vehicle device according to Embodiment 1 of the present invention. Here, a CD player is illustrated as an in-vehicle device. As shown in FIG. 1, an in-vehicle device (CD player) according to Embodiment 1 of the present invention includes a disk drive mechanism unit 1, a vibration detection unit 2, a control unit 3, a storage unit 4, and an operation unit. 5 and a notification unit 6.

The disk drive mechanism unit 1 includes a disk transport roller 11, a disk transport roller driving unit 12, a turntable 13, a disk rotation motor 14 (spindle motor), an optical pickup unit 15, and a feed shaft mechanism unit 16. Composed.
The disc transport roller 11 is driven by the disc transport roller driving unit 12 under the control of the control unit 3, and carries the CD 10 as a recording medium into the CD player or out of the CD player. The disk transport roller drive unit 12 includes circuit components such as a gear box, a motor, and a motor driver that drive the disk transport roller 11.

The turntable 13 is loaded with the CD 10 and is rotationally driven by a disk rotation motor 14 during reproduction. A clamper (not shown) is formed at a substantially central portion of the turntable 13, and a center hole of the CD 10 is chucked therein.
The optical pickup unit 15 is an optical component including a lens that reads data recorded on the CD 10 with a laser beam, and the feed shaft mechanism unit 16 is a guide for moving the optical pickup unit 15 in the radial direction of the CD 10. The optical pickup unit 15 moves in the radial direction (tracking servo) and the vertical direction (focusing servo) of the CD 10 by servo control by the control unit 3.

The vibration detection unit 2 is configured by, for example, an acceleration sensor. As a detection method of the acceleration sensor, there are a capacitance type that detects acceleration as a change in capacitance and a piezoresistive type. The piezoresistive type is when a piezoresistive element formed on a silicon single crystal substrate by a semiconductor manufacturing process such as an ion implanter is subjected to tensile or compressive stress by mechanical external force (ie, when acceleration is applied). ) To detect the acceleration using the characteristic that the resistance value increases or decreases.
For example, in the case of a triaxial acceleration sensor, vibration is measured from the sum of acceleration vectors of X, Y, and Z, and a detection voltage based on the acceleration itself and a zero offset voltage (a state in which no acceleration is applied only by gravitational acceleration) And the difference from the reference voltage at).

  Here, it is assumed that an acceleration sensor is arranged as a vibration detection unit 2 in a set (CD player) and vibration measurement is performed. For example, an observer servo acceleration sensor already installed in an in-vehicle device, or It is also conceivable to use a signal representing vibration from a vehicle control acceleration sensor or the like disposed in the vehicle. It is also possible to detect vibration by measuring the counter electromotive force applied to the coil of the actuator portion of the optical pickup unit 15.

The control unit 3 is constituted by, for example, a microprocessor, and accepts a loading / unloading request (loading / ejecting) of the CD 10 from the outside in accordance with a program stored in a program area of the storage unit 4 which is built-in or externally connected. When the vibration detected by the vibration detection unit 2 is equal to or greater than a predetermined value, execution of the carry-in / out request is prohibited. Details of the structure of the program will be described later with reference to FIG.
In addition to the program area in which the program executed by the control unit 3 is stored, the storage unit 4 includes, for example, a fixed area that stores a reference value (threshold value) of a vibration value detected by the vibration detection unit 2, and an external It is assumed that a work area for temporarily storing a loading / eject request coming from is allocated and stored.

In the operation unit 5, in addition to power ON / OFF, playback, and volume adjustment, switches assigned with user operation request functions such as loading / ejecting are arranged. When these switches are operated by the user In addition, a request signal corresponding to the operation content is generated and output to the control unit 3 as a user operation request.
The notification unit 6 includes, for example, a console LCD (Liquid Crystal Display), an LED (Light Emitted Diode), or the like, and the loading / ejecting operation of the CD 10 controlled by the control unit 3 is vibrated under the control of the control unit 3. It is notified by a display that it is due to. Note that the notification unit 6 may be replaced by voice notification instead of the console LCD or LED display.

FIG. 2 is a block diagram showing the functions of the structure of the program executed by the control unit 3 of the in-vehicle device according to Embodiment 1 of the present invention.
As shown in FIG. 2, the program executed by the control unit 3 includes a main control unit 30, a loading / ejection request receiving unit 31, a vibration state determination unit 32, a loading / eject request execution control unit 33, and a notification. And an information output unit 34.

The loading / eject request accepting unit 31 accepts a loading / eject request generated when the user operates the operation unit 5 and passes it to the loading / eject request execution control unit 33.
The vibration state determination unit 32 compares the vibration input detected and input by the vibration detection unit 2 with the threshold when the loading / eject request reception unit 31 receives the loading / eject request, and indicates the vibration input as the threshold. When the predetermined value is exceeded, the loading / eject request execution control unit 33 is activated, and the loading / eject request receiving unit 31 performs control to prohibit execution of the loading / eject request. The loading / eject request execution control unit 33 controls the rotation direction of the disk transport roller 11 of the disk drive mechanism unit 1 in order to execute the loading request or ejection request received by the loading / eject request receiving unit 31. The loading / eject request execution control unit 33 prohibits the execution of the loading / eject request received by the loading / eject request receiving unit 31 when the vibration state determining unit 32 determines that the vibration value is equal to or greater than a predetermined value. Control is also performed.

  When the loading / eject request execution control unit 33 performs control to prohibit execution of the loading / eject request, the notification information output unit 34 notifies the notification unit 6 of information indicating that the cause is due to vibration. Output.

  The main control unit 30 receives a loading / ejecting request of the CD 10 from the outside, and controls the loading / ejecting request when the vibration detected by the vibration detecting unit 2 exceeds a predetermined value. In order to execute the function, the above-described sequence control of the loading / eject request receiving unit 31, the vibration state determination unit 32, the loading / eject request execution control unit 33, and the notification information output unit 34 is performed. Further, the rotation control of the disk rotation motor 14 and the transfer control of the optical pickup unit 15 are executed by controlling a servo system (not shown).

3 and 4 are flowcharts showing the operation of the in-vehicle device according to the first embodiment of the present invention, and each shows a loading request execution operation (FIG. 3) and an ejection request execution operation (FIG. 4).
Hereinafter, the loading request execution operation and the ejection request execution operation of the in-vehicle device according to the first embodiment of the present invention shown in FIGS. 1 and 2 will be described in detail with reference to the flowcharts shown in FIGS. 3 and 4.

First, the loading request execution operation will be described with reference to the flowchart of FIG. When the user presses a loading switch mounted and arranged on the operation unit 5 with the CD 10 being sandwiched between the disk transport rollers 11, a loading request is generated, and the control unit 3 reads the loading request from the loading / eject request receiving unit 31. Accept.
When the loading / eject request accepting unit 31 accepts the loading request (“YES” in step ST301), the vibration state determining unit 32 obtains the vibration value detected by the vibration detecting unit 2 and a predetermined vibration value (threshold). The magnitude of the comparison is determined by vibration monitoring (step ST302). Here, when the vibration value detected by the vibration detection unit 2 is less than the threshold value (step ST302 “NO”), the loading / ejection request execution control unit 33 causes the disk drive mechanism unit 1 (disk transport roller driving unit 12) to operate. To start loading control (step ST303).

  In starting the loading control, the loading / eject request execution control unit 33 controls the disc transport roller driving unit 12 so that the CD 10 is placed on the turntable 13 by driving the disc transport roller 11 to the loading side. To control the transfer. When the chucking is completed by fixing the center hole of the CD 10 to the clamper (step ST304 “YES”), the disk transport roller driving unit 12 completes the loading operation by stopping the rotation of the disk transport roller 11. (Step ST305).

  On the other hand, in the vibration monitoring determination process in step ST302, when the vibration value detected by the vibration detection unit 2 exceeds the threshold ("YES" in step ST302), the loading / eject request execution control unit 33 receives the loading / eject request. Execution of the loading request received by the unit 31 is prohibited, and the above-described series of processing ends.

Although not shown in the flowchart of FIG. 3, the main control unit 30 drives the notification unit 6 with the notification information output unit 34 that the loading / eject request execution control unit 33 has prohibited the loading operation. Then, the user may be notified.
Here, as a notification form by the notification unit 6, a display on a dedicated display device such as an LED, etc., which is displayed on the console LCD of the in-vehicle device, blinks the button illumination of the loading switch of the operation unit 5, can be considered. Moreover, you may alert | report by an audio | voice.

Next, the ejection request execution operation will be described using the flowchart of FIG. In a state where the center hole of the CD 10 is chucked by the clamper on the turntable 13, an eject request is generated when the user presses an eject switch mounted on the operation unit 5, and the control unit 3 loads this. / Eject request acceptance unit 31 accepts.
When the loading / eject request accepting unit 31 accepts the eject request (step ST401 “YES”), the vibration state determining unit 32 obtains a vibration value detected by the vibration detecting unit 2 and a predetermined vibration value (threshold). The magnitude of the comparison is determined by vibration monitoring (step ST402). Here, when the vibration value detected by the vibration detection unit 2 is less than the threshold value (step ST402 “NO”), the loading / ejection request execution control unit 33 starts ejection control (step ST403).

  In starting the ejection control, the loading / ejection request execution control unit 33 removes the CD 10 from the clamper of the turntable 13 (chucking is released), and drives the disk transport roller 11 to the ejection side (reverse to the loading). Thus, the ejection of the CD 10 is awaited (step ST404 “YES”), and the ejection operation is completed (step ST405).

  On the other hand, when the vibration value detected by the vibration detection unit 2 exceeds the threshold value in the vibration value monitoring determination process in step ST402 (step ST402 “YES”), the loading / eject request execution control unit 33 causes the loading / eject request to be executed. Execution of the eject request received by the receiving unit 31 is prohibited, and the above-described series of processing ends.

  Although not shown in the flowchart of FIG. 4, the main control unit 30 drives the notification unit 6 by the notification information output unit 34 that the ejection operation is prohibited by the loading / ejection request execution control unit 33. Then, the user may be notified.

According to the in-vehicle device according to the first embodiment described above, when the control unit 3 receives a request for loading / ejecting a recording medium such as the CD 10 from the outside and the vibration detected by the vibration detection unit 2 is equal to or greater than a predetermined value. By prohibiting the execution of the loading / ejecting request, it is possible to prevent the recording medium from being chucked and dropped off which may occur in a strong vibration environment such as traveling on a rough road.
Further, by notifying that the loading / ejecting operation is prohibited, it is possible to notify the user of a divergence between the user operation and the operation of the in-vehicle device so that the user can recognize that there is no trouble due to a device failure or the like. Usability is improved.

Embodiment 2. FIG.
According to the first embodiment described above, the control unit 3 prohibits the execution of the loading / eject request when the vibration detected by the vibration detection unit 2 is equal to or greater than a predetermined value, thereby strengthening the strong road driving or the like. Although it was decided to prevent the chucking and dropping of the recording medium that may occur in a vibration environment, the execution of the received loading / eject request is suspended as in the second embodiment described below. If the vibration detected by the vibration detection unit 2 becomes a predetermined value or less, the same effect should be obtained by executing the loading / ejecting request that has been suspended.

  In the second embodiment described below, basically, the same configuration as the in-vehicle device shown in FIG. 1 and FIG. 2 is used as in the first embodiment. The storage unit 4 that temporarily holds the eject request is provided, and the control unit 3 (loading / eject request execution control unit 33) first stores the storage unit 4 when the vibration detected by the vibration detection unit 2 becomes a predetermined value or less. The only difference is that the loading / ejecting request held in the predetermined area is read and executed. Other configurations are the same as those in the first embodiment. Note that the storage unit 4 used at this time may be replaced with a memory (register) that can be read and written by the microprocessor, which is built in the loading / eject request execution control unit 33.

5 and 6 are flowcharts showing the operation of the in-vehicle device according to the second embodiment of the present invention, and show a loading request execution operation (FIG. 5) and an eject request execution operation (FIG. 6), respectively.
Hereinafter, the operation of the in-vehicle apparatus according to Embodiment 2 of the present invention will be described in detail with reference to the flowcharts shown in FIGS.

First, the loading request execution operation will be described with reference to the flowchart of FIG. In the state in which the CD 10 is sandwiched between the disk transport rollers 11 in the disk drive mechanism unit 1, the user presses a loading switch disposed on the operation unit 5, and a loading request is generated. The eject request accepting unit 31 accepts the request.
The loading request accepted at this time (step ST501 “YES”) is temporarily stored in a predetermined area of the storage unit 4 or a register built in the loading / eject request execution control unit 33 under the control of the main control unit 30. It is assumed to be stored (step ST502).

When the loading / eject request receiving unit 31 receives the loading request, the vibration state determination unit 32 compares the vibration value detected by the vibration detection unit 2 with a predetermined vibration value (threshold value), and vibrates the magnitude thereof. Monitoring is determined (step ST503).
Here, when the vibration value detected by the vibration detection unit 2 exceeds the threshold value (step ST503 “YES”), the vibration state determination unit 32 is preliminarily defined as the vibration value detected by the vibration detection unit 2 again. The vibration value (threshold value) is compared, and the magnitude of the vibration value is determined for vibration monitoring (step ST507). The loading / eject request execution control unit 33 waits for the vibration value detected by the vibration detection unit 2 to be smaller than a predetermined vibration value (threshold value) (step ST507 “NO”), and then stores the predetermined value in the storage unit 4. The execution of the loading request stored in the area is permitted (step ST504: loading is started).

  That is, the loading / eject request execution control unit 33 drives the disk transport roller 11 to the loading side when starting the loading control. Thus, when the chucking is completed by placing the CD 10 on the turntable 13 and fixing it to the clamper (step ST505 “YES”), the rotation of the disk transport roller 11 is stopped and the loading operation is completed ( Step ST506).

  Although not shown in the flowchart of FIG. 5, the main control unit 30 drives the notification unit 6 by the notification information output unit 34 that the loading / eject request execution control unit 33 has suspended the loading operation. Then, the user may be notified.

  Next, the eject request execution operation will be described with reference to the flowchart of FIG. In a state where the center hole of the CD 10 is chucked by the clamper on the turntable 13, an eject request is generated when the user depresses an eject switch arranged on the operation unit 5, and the control unit 3 loads this / The eject request accepting unit 31 accepts the request. The ejection request received at this time (step ST601 “YES”) is stored by the main control unit 30 in a predetermined area of the storage unit 4 or in a register built in the loading / eject request execution control unit 33. (Step ST602).

When the loading / eject request accepting unit 31 accepts an eject request (step S601 “YES”), the vibration state determining unit 32 obtains a vibration value detected by the vibration detecting unit 2 and a predetermined vibration value (threshold value). The comparison is made to determine whether the vibration is large or small (step ST603). Here, when the vibration value detected by the vibration detection unit 2 exceeds the threshold value (step ST603 “YES”), the vibration state determination unit 32 is preliminarily defined as the vibration value detected by the vibration detection unit 2 again. The vibration value (threshold value) is compared (step ST607).
At this time, the loading / eject request execution control unit 33 waits for the vibration value detected by the vibration detection unit 2 to become smaller than a predetermined vibration value (threshold) (step ST607 “NO”), and then the storage unit. Is permitted to execute the ejection request stored in (step ST604: ejection start).

  That is, when starting the ejection control, the loading / ejection request execution control unit 33 removes the CD 10 from the clamper of the turntable 13 (chucking is released), and drives the disk transport roller 11 to the ejection side (reverse to the loading). As a result, the ejection of the CD 10 is awaited (step ST605 “YES”), and the ejection operation is terminated (step ST606).

  Although not shown in the flowchart of FIG. 6, the main control unit 30 drives the notification unit 6 with the notification information output unit 34 that the ejection operation is suspended by the loading / ejection request execution control unit 33. Then, the user may be notified.

According to the above-described in-vehicle device according to the second embodiment, the control unit 3 temporarily holds the loading / ejecting request in a predetermined area of the storage unit 4, and the vibration detected by the vibration detection unit 2 is below a predetermined value. In such a case, by executing the previously stored loading / ejecting request, it is possible to prevent the recording medium from being chucked and dropped out which may occur in a strong vibration environment such as traveling on a rough road. . In addition, the above-described problems due to vibration can be avoided while performing loading / ejecting operations in accordance with the user's intention.
Furthermore, according to the in-vehicle device according to the second embodiment, the user is notified of the divergence between the user operation and the operation of the in-vehicle device by notifying that the loading / ejecting operation has been suspended, and the user is informed of the failure of the device. Since it is possible to recognize that there is no trouble due to, the usability is improved.

Embodiment 3 FIG.
According to the first embodiment and the second embodiment described above, the control unit 3 prohibits execution of the loading / eject request when the vibration detected by the vibration detection unit 2 exceeds a predetermined value, or When the load / eject request received is suspended, the load / eject request is suspended after waiting for the vibration to fall below the specified value. It was decided to prevent the occurrence of chucking failure and dropout of the recording medium that may occur, but it was detected by the vibration detection unit 2 when a loading request was accepted as in the third embodiment described below. The loading control is performed without depending on the value, and the ejection control of the recording medium is performed when the vibration detected by the vibration detection unit 2 becomes a predetermined value or less. Should effect is obtained in the falling-off prevention of the recording medium that occur in strong vibration environment of bad road or the like by performing the re-loading.

  In the third embodiment described below, the same configuration as the in-vehicle device (control unit 3) shown in FIGS. 1 and 2 is basically used as in the first and second embodiments. When the loading / eject request execution control unit 33 of the control unit 3 accepts a recording medium loading request from the outside, the loading control of the recording medium is performed without depending on the value detected by the vibration detection unit 2, and the vibration is detected. There is a difference in performing ejection control and reloading control of the recording medium when the vibration detected by the detection unit 2 becomes a predetermined value or less.

FIG. 7 is a flowchart showing the loading request execution operation of the in-vehicle device according to Embodiment 3 of the present invention.
Hereinafter, the operation of the in-vehicle device according to Embodiment 3 of the present invention will be described in detail with reference to the flowchart shown in FIG.

In the disk drive mechanism unit 1, a loading request is generated when the user first presses a loading switch mounted and arranged on the operation unit 5 while the CD 10 is held by the disk transport roller.
When control unit 3 (loading / eject request receiving unit 31) receives a loading request ("YES" in step ST701), vibration state determining unit 32 detects a vibration value detected by vibration detecting unit 2 and a predetermined vibration value. (Threshold) is compared, and the magnitude of the vibration monitoring is determined (step ST702). Here, if the vibration value detected by the vibration detection unit 2 is less than the threshold value (step ST702 “NO”), the loading / eject request execution control unit 33 starts loading control (step ST703).

  When starting the loading control, the loading / eject request execution control unit 33 drives the disk transport roller 11 to the loading side, thereby placing the CD 10 on the turntable 13 and fixing it to the clamper. Subsequently, when the chucking is completed (step ST704 “YES”), the loading / eject request execution control unit 33 can complete the loading operation by stopping the rotation of the disk transport roller 11 (step ST705).

On the other hand, when the vibration value detected by the vibration detection unit 2 exceeds the threshold value in the vibration monitoring determination process 1 in step ST702 (step ST702 “YES”), the loading / ejection request execution control unit 33 similarly performs the loading control. Start (step ST706).
Here, when starting the loading control, the loading / ejection request execution control unit 33 drives the disk transport roller 11 to the loading side to place the CD 10 on the turntable 13 and fix it to the clamper. Subsequently, when the chucking is completed (“YES” in step ST707), the loading / eject request execution control unit 33 can complete the loading operation by stopping the rotation of the disk transport roller 11 (step ST708). At this time, the vibration state determination unit 32 again compares the vibration value detected by the vibration detection unit 2 with a predetermined vibration value (threshold value) under the sequence control by the main control unit 30, and determines the magnitude of the vibration value. Vibration monitoring determination is performed (step ST709). The threshold value used here may be the value used in the vibration monitoring determination process 1 of step ST702 or other value.

The loading / eject request execution control unit 33 waits for the vibration value detected by the vibration detection unit 2 to be less than the threshold value by the vibration state determination unit 32 (step ST709 “NO”), and then ejects by the main control unit 30. Control is started (step ST710).
In starting the above-described ejection control, the loading / ejection request execution control unit 33 removes the CD 10 from the clamper of the turntable 13 (chucking cancellation), waits for the chucking cancellation operation (step ST711 “YES”), The ejection operation can be terminated by driving the transport roller 11 toward the ejection side (reverse to that during loading) (step ST712).

Subsequently, the loading / eject request execution control unit 33 controls the disk drive mechanism 1 (disk transport roller driving unit 12) to start reloading control (step ST713).
When starting the reloading control, the loading / ejection request execution control unit 33 controls the transfer so that the CD 10 is placed on the turntable 13 by driving the disk transport roller 11 to the loading side. When re-chucking is completed by fixing the CD 10 to the clamper (step ST714 “YES”), the reloading operation is completed by stopping the rotation of the disk transport roller 11 (step ST715).

According to the above-described in-vehicle device according to the third embodiment, when the control unit 3 receives a recording medium (CD10) loading request from the outside, the recording medium does not depend on the value detected by the vibration detection unit 2. When the vibration detected by the vibration detection unit 2 falls below a predetermined value, the recording medium is controlled to be ejected and reloaded to control the recording medium in the set in a strong vibration environment. Therefore, the recording medium does not fall off, so that the recording medium is not damaged by the dropping.
Further, when the vibration becomes a predetermined value or less, the recording medium is once transported in the ejecting direction, and the reloading operation is performed, so that the trouble due to the vibration described above can be avoided while performing the loading operation in accordance with the user's intention. it can. At this time, the control unit 3 prohibits the reproduction of the CD 10 until the recording medium (CD 10) is normally chucked by the clamper by the reloading operation.

Although not shown in the flowchart of FIG. 7, the main control unit 30 causes the loading / eject request execution control unit 33 to drive the notification unit 6 using the notification information output unit 34 that the reloading operation is being performed. May be notified to the user.
In this way, the user's operation and the operation of the in-vehicle device can be notified, and the user can be made aware that it is not a trouble due to a device failure or the like, thereby improving usability.

Note that according to the first to third embodiments described above, only the CD 10 is illustrated as the recording medium. However, the recording medium is not limited to the CD 10, but a Blu-ray disc, HD DVD (High-Definition Digital) The same effect can be obtained with Versatile Disc), DVD, and MD (Mini Disc).
Further, according to the above-described first to third embodiments, only loading / ejecting is exemplified for loading / unloading of a recording medium, but a plurality of recording media are accommodated, and any recording medium can be reproduced. The operation associated with the selection or exchange of a recording medium in a so-called autochanger can be applied in the same way, and a remarkable effect is obtained when there is a possibility that the operation becomes unstable due to vibration at the end of the operation.

In addition, the functions of the constituent blocks included in the in-vehicle device according to the first to third embodiments of the present invention may be realized entirely by software, or at least a part thereof may be realized by hardware. .
For example, in the control unit 3 that accepts a request for loading / ejecting the recording medium (CD10) from the outside and prohibits execution of the loading / unloading request when the vibration detected by the vibration detection unit 2 exceeds a predetermined value. When data processing or a recording medium loading request is received from the outside, the recording medium loading control is performed without depending on the value detected by the vibration detecting unit, and the vibration detected by the vibration detecting unit is below a predetermined value. The data processing in the control unit 3 that performs the carry-out control of the recording medium and performs the re-import control in the case of the above may be realized on a computer by one or a plurality of programs, and at least a part thereof is hardware It may be realized with.

It is a block diagram which shows the structure of the vehicle equipment which concerns on Embodiment 1 of this invention. It is the block diagram which expanded the function and showed the structure of the program which the control part of the vehicle equipment which concerns on Embodiment 1 of this invention performs. It is a flowchart which shows the carrying-in request | requirement execution operation | movement of the vehicle equipment which concerns on Embodiment 1 of this invention. It is a flowchart which shows the carrying-out request | requirement execution operation | movement of the vehicle equipment which concerns on Embodiment 1 of this invention. It is a flowchart which shows the carrying-in request execution operation | movement of the vehicle equipment which concerns on Embodiment 2 of this invention. It is a flowchart which shows the carrying-out request execution operation | movement of the vehicle equipment which concerns on Embodiment 2 of this invention. It is a flowchart which shows the carrying-in request | requirement execution operation | movement of the vehicle equipment which concerns on Embodiment 3 of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Disc drive mechanism part, 2 Vibration detection part, 3 Control part, 4 Storage part, 5 Operation part, 6 Notification part, 10 CD (Recording medium), 11 Disc conveyance roller, 12 Disc conveyance roller drive part, 13 Turntable, 14 disc rotation motor, 15 optical pickup unit, 16 feed shaft mechanism unit, 30 main control unit, 31 loading / eject request receiving unit, 32 vibration state determination unit, 33 loading / eject request execution control unit, 34 notification information output unit.

Claims (7)

An in-vehicle device that reproduces information recorded on a recording medium,
A vibration detector for detecting vibration;
A controller that accepts a request for loading / unloading the recording medium from outside and prohibits execution of the load / unload request when the vibration detected by the vibration detector is greater than or equal to a predetermined value;
In-vehicle equipment characterized by comprising: A storage unit,
The controller is
The said carrying-in / out request | requirement is temporarily hold | maintained at the said memory | storage part, and the said carrying-in / out request | requirement held when the vibration detected by the said vibration detection part becomes below a predetermined value is performed. In-vehicle equipment. An in-vehicle device that reproduces information recorded on a recording medium,
A vibration detector for detecting vibration;
When a request for carrying in the recording medium is received from the outside, the recording medium is carried in without depending on the value detected by the vibration detection unit, and the vibration detected by the vibration detection unit falls below a predetermined value. A control unit for controlling the unloading of the recording medium and performing the re-loading control when
In-vehicle equipment characterized by comprising: The controller is
4. The in-vehicle device according to claim 3, wherein reproduction of the recording medium is permitted after the carry-in control is performed again. An informing unit for informing the outside that the loading / unloading operation of the recording medium controlled by the control unit is due to vibration;
The in-vehicle device according to any one of claims 1 to 4, further comprising: The vibration detection unit is
4. The in-vehicle device according to claim 1, wherein vibration is detected by a signal acquired from an acceleration sensor for observer servo or a back electromotive force of a pickup actuator. The vibration detection unit is
The in-vehicle device according to claim 1, wherein vibration is detected by a signal acquired from an acceleration sensor installed in the vehicle.

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