JP4572110B2 - On-vehicle electronic device and control method thereof - Google Patents

Description

  The present invention relates to a technology of an in-vehicle electronic device whose main body is mounted on a vehicle.

  For example, an in-vehicle electronic device that includes a main body mounted on a vehicle, is supported to be tiltable so as to cover the front surface of the main body, and includes an operation panel that exposes the front surface of the main body in a tilted state is known. An insertion slot for inserting a recording medium such as a CD (Compact Disc) or a DVD (Digital Versatile Disk) is formed on the front of the main body, and this insertion slot is exposed when the operation panel is tilted. (See, for example, Patent Document 1). A liquid crystal display panel is provided in front of the operation panel, and various types of information are displayed on the display panel.

Conventionally, in this type of in-vehicle electronic device, the operation panel has been manually tilted.However, in recent years, a release button has been provided, and when this button is operated, it automatically tilts, and after a predetermined time has elapsed, An in-vehicle electronic device configured to return to the closed state has been devised. Constituting in this way improves usability for the user.
JP 11-203852 A

  By the way, in the on-vehicle electronic device, for example, in order for an adjustment operator to adjust the display panel of the operation panel during production, an operator for performing this adjustment is required. Since it is more efficient to perform this adjustment work in a state where the apparatus is assembled, it is preferable to provide an adjustment operator on the operation panel in advance, but this operator is operated by a general user. Is not preferred. Therefore, it is preferable to arrange this operation element on the back surface of the operation panel, which is a hidden place that is easy for an adjustment operator to operate and is not operated by a general user. Therefore, when the adjustment operator performs the adjustment, the operator arranged on the back surface can be operated by operating the release button.However, the adjustment operation is hindered because the operator returns to the original closed state in a predetermined time. There is a problem of causing

  Therefore, the present invention has been made in view of the above-described circumstances, and an in-vehicle electronic device configured to facilitate adjustment work for an adjustment worker and prevent the user from performing the adjustment work, and control thereof. It aims to provide a method.

  In order to solve the above-described problems, the present invention tilts the operation panel in an in-vehicle electronic device that includes a main body mounted on a vehicle and includes an operation panel that is tiltably supported so as to cover the front of the main body. When the operation panel is tilted, an opening / closing mode for returning the operation panel from the tilted state after a predetermined time has elapsed after tilting the operation panel is provided, and when the operation panel is tilted, the operation panel is tilted before the operation panel is tilted. A test mode is provided that maintains the operation panel in a tilted state even though a predetermined time has elapsed, and a test mode operation element that can be operated in the test mode is provided on the back of the operation panel. It is characterized by that.

  In the in-vehicle electronic device, when the main body receives a test signal from the outside, the on / off mode shifts to the test mode.

In the in-vehicle electronic device, the operation panel is provided with an opening operation element, and when the opening operation element is operated, the operation panel is tilted.

  In the in-vehicle electronic device, when the operation panel is tilted, the upper end of the operation panel slides downward, and the lower end of the operation panel slides forward.

  In the in-vehicle electronic device, a display panel is provided in front of the operation panel, and the test mode operation element is an operation element for adjusting the display panel. .

  An in-vehicle system that includes a main body mounted on a vehicle, includes an operation panel that is tiltably supported so as to cover the front surface of the main body, and an operation element for adjusting the operation panel is provided on the rear surface of the operation panel. In the electronic device control method, when the operation panel is tilted, a first step of executing an open / close mode for returning the operation panel from the tilted state after a predetermined time has elapsed since the operation panel was tilted, and the operation A second step of executing a test mode for maintaining the operation panel in a tilted state even when the predetermined time has elapsed since the operation panel was tilted when the panel is tilted. It is characterized by.

  According to the present invention, it becomes easy for an adjustment operator to perform an adjustment operation, and the adjusted item is hardly changed by a user.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a front view of a car audio device 1 as an in-vehicle acoustic device which is an aspect of the in-vehicle electronic device according to the present embodiment, and FIG. 2 is a front view of the device main body 2 of the car audio device 1. As shown in FIG. 1, a detachable control panel (hereinafter referred to as DCP (Detachable Control Panel) 3) 3 is detachably attached to the front surface (front portion) of the car audio device 1.

  The DCP 3 functions as a display unit and an operation unit of the car audio apparatus 1, and is provided on the left and right sides of the DCP case 4, the liquid crystal panel 5, the touch panel 6 provided on the liquid crystal panel 5, and the liquid crystal panel 5. It has a plurality of operation keys 7 arranged. Upper and lower edges of the liquid crystal panel 5 are provided with an upper frame 8A and a lower frame 8B, and the liquid crystal panel 5 is sandwiched between the upper frame 8A and the lower frame 8B. Further, four recesses 9 are formed at substantially equal intervals along the portion adjacent to the liquid crystal panel 5 in the lower frame 8B. These recesses 9 are used to guide operation locations on the touch panel 6. That is, as shown in FIG. 1, on the liquid crystal panel 5, four operation button icons 10 are displayed corresponding to these four recesses 9, and if the user slides his / her finger on the lower frame 8 </ b> B, The position of the operation button 10 displayed on the liquid crystal panel 5 can be observed from the position of the recess 9. Therefore, the user can easily operate the touch panel 6 without looking at the liquid crystal panel 5.

  Further, as shown in FIG. 1, guide pieces 11 extending vertically are provided on both the left and right edges of the liquid crystal panel 5. These guide pieces 11 are for guiding the operation location on the touch panel 6 in the same manner as the concave portion 9 of the lower frame 8B. Specifically, as shown in FIG. 1, scroll operation icons 12 for sequentially changing display items displayed on the liquid crystal screen 5 are displayed near the left and right edges of the liquid crystal panel 5. Can operate the scroll operation icon 12 by relying on the guide piece 11. That is, when the user slides on the touch panel 6 with the finger along the guide piece 11, the scroll operation icon 12 is operated, and the display items are sequentially changed.

  As described above, the DCP 3 includes a plurality of operation keys 7. As these operation keys 7, a power / volume key 7A, a source button 7B, an open / eject button 7C, an adjust button 7D, a mode button 7E, a sound A button 7F and an ISR button 7G are provided. The power / volume key 7A is configured as a rotary key switch, the power is turned on / off by a pressing operation, and the volume (volume) is adjusted by a rotating operation. The source button 7B is a push button for switching the sound source, and the sound source to be reproduced is switched each time the button is pressed. As the sound source, a radio sound source or a CD sound source built in the apparatus main body 2, a CD changer or a DVD changer connected to the apparatus main body 2 so as to be communicable, an external sound input from an external audio input terminal, or the like is used. ing.

  The open eject button 7C as an opening operator is a push button for opening the DCP3 panel. When the open eject button 7C is pressed with the DCP 3 closed, the DCP 3 is moved by a link mechanism (not shown). It tilts so as to be pushed out from the apparatus main body 2 and enters a tilted state, and the front surface 2A (front portion) of the apparatus main body 2 is exposed. As shown in FIG. 2, a CD insertion slot 20 is provided in the front surface 2 </ b> A of the apparatus main body 2, and the CD can be inserted into and removed from the apparatus main body 2 when the DCP 3 is tilted. When the open eject button 7C is operated while the DCP 3 is tilted, the CD is ejected from the insertion slot 20.

  The adjustment button 7D is an operation button used when various settings and adjustments of the apparatus main body 2 are performed. The mode button 7E is, for example, a push button for setting a playback mode at the time of CD playback. Each time the button is pressed, a playback mode such as repeat playback or random playback is switched and set. When the mode button 7E is pressed for a long time, the display on the liquid crystal panel 5 is switched between the standard display and the simple display that improves the visibility by omitting the design. The sound button 7F is an operation button used when performing various settings and adjustments related to sound. The ISR button 7G is an operation button for receiving a specific radio channel and outputting radio sound regardless of the current selection state of the sound source.

  Further, on the front surface 3A of the DCP 3, there are provided a light receiving window 13 of a photo sensor for sensing the brightness of the passenger compartment and a light receiving window 14 for receiving a signal from a remote controller. In the car audio apparatus 1, the brightness of the backlight of the liquid crystal panel 5 is adjusted according to the brightness of the passenger compartment sensed by the photosensor (so-called auto dimmer function).

  As described above, the DCP 3 can be detached from the apparatus main body 2. The structure will be described. As shown in FIG. 3, two engagement protrusions 30A, 30B and 1 are provided on the back surface 3B of the DCP 3. As shown in FIG. 2, a support plate 21 for attaching the DCP 3 is provided on the front surface of the apparatus main body 2, and the support contacts 21 are formed. Two engagement receivers 22 </ b> A and 22 </ b> B, one engagement protrusion 23, and a connector contact 24 are formed on the plate 21. Under this configuration, the engagement receiver 31 on the back surface 3B of the DCP 3 is pushed into the engagement protrusion 23 on the support plate 21 of the apparatus main body 2, and one end side of the DCP 3 is engaged with the apparatus main body 2, and then the back surface of the DCP 3 The DCP 3 is removably attached to the front surface 2A of the apparatus main body 2 by pushing the engagement protrusions 30A and 30B and the connector contact 32 of the 3B into the engagement receivers 22A and 22B and the connector contact 24 of the apparatus main body 2 respectively. It is done.

  When the DCP 3 is removed from the apparatus main body 2, an LED (not shown) arranged in the vicinity of the insertion slot 20 is lit or blinked so that the user can visually recognize that the anti-theft mode has been entered. When the anti-theft mode is set, the CD playback operation is disabled. The apparatus main body 2 and the DCP 3 hold the same unique personal identification code, and the anti-theft mode is not canceled even if a DCP having a different personal identification code is attached to the apparatus main body 2. Therefore, even if a DCP holding a different code is attached to the apparatus main body 2, the apparatus main body 2 does not operate.

  In a state where the DCP 3 having the same code is attached to the apparatus main body 2, signals can be transmitted and received between the DCP 3 and the apparatus main body 2 via the connector contacts 32 and 24. 2, an operation signal corresponding to the operation of the operation key 7, a signal for displaying various information on the liquid crystal panel 5, and the like are transmitted and received. Further, a test mode operation element 33 for adjusting the luminance of the backlight of the liquid crystal panel 5 as a display panel is provided on the back surface 3B of the DCP 3, and when the DCP 3 is attached to the apparatus main body 2, When the test mode operator 33 is operated, the luminance of the backlight of the liquid crystal panel 5 is adjusted. The test mode operation element 33 is preferably disposed on a back surface 3B of the DCP 3 because it is preferably disposed in an inconspicuous manner so that it is difficult for a general user to operate. As a result, the brightness of the backlight of the liquid crystal panel 5 is prevented from being changed by the user.

  As described above, when the DCP 3 is attached to the front surface 2A of the apparatus main body 2, the DCP 3 is in a closed state in which the front surface 2A including the insertion port 20 for the recording medium m such as a CD is covered. That is, DCP3 is normally in a closed state. When the open eject button 7C of the DCP 3 is operated in this closed state, as shown in FIG. 4, the support plate 21 and the DCP 3 are tilted by a link mechanism having an arm or the like (not shown), and the insertion port 20 ( 2) is exposed. In this tilted state in which the upper end 3C of the DCP 3 is slid downward (in the direction of the arrow X1) of the apparatus main body 2 and the lower end 3D is slid in the front of the apparatus main body 2 (in the direction of arrow X2), The recording medium m can be inserted and removed.

  Further, the test mode operator 33 disposed on the back surface 3B of the DCP 3 is exposed downward when the DCP 3 is tilted, and the adjustment operator can test the test mode operator 33 when the DPC 3 is tilted. 33 can be operated.

  Next, the functional configuration of the car audio device 1 will be described in detail with reference to FIG. FIG. 5 is a block diagram showing a functional configuration of the device main body 2 and the DCP 3 of the car audio device 1. As shown in this figure, the device main body 2 of the car audio device 1 includes a master microcomputer 100 (control unit), a radio reception unit 110, a CD playback unit 120, an audio output unit 130, and an interface 140. Yes.

  The master microcomputer 100 includes a CPU 100a and executes control of each unit of the apparatus main body 2 and the DCP 3, and further includes an EEPROM 100b and a RAM 100c (storage means). The EEPROM 100b includes a control program, a menu screen, and the like. The various display data are stored. The master microcomputer 100 is supplied with a backup power source directly connected to the vehicle battery and an ACC power source connected to the battery via a key switch. Therefore, while the ACC power is off, backup power is supplied to the master microcomputer 100 and data stored in the RAM 100c or the like is retained.

  The radio receiving unit 110 receives an AM / FM wave radio broadcast, and includes an antenna 111 and a tuner circuit 112. The tuner circuit 112 receives a radio broadcast of a predetermined channel based on an instruction from the master microcomputer 100. Then, the audio signal is output to the audio output unit 130. The CD playback unit 120 includes a CD reading unit 121 that reads music data recorded on a CD and outputs an audio signal to the audio output unit 130 under the control of the master microcomputer 100.

  The audio output unit 130 outputs audio based on audio signals from each of the radio reception unit 110 and the CD reproduction unit 120 under the control of the master microcomputer 100, and includes a DSP (Digital Signal Processor) 131, a sound volume And an electronic volume circuit 132 for adjusting. Under the control of the master microcomputer 100, the DSP 131 performs digital audio signal processing such as filter processing, equalizer processing, and decoding processing when the audio signal is encoded on the electronic volume circuit 132. The electronic volume circuit 132 adjusts and outputs the amplitude level of the audio signal after D / A conversion of the audio signal in order to adjust the reproduction volume under the control of the master microcomputer 100. In addition to the radio reception unit 110 and the CD playback unit 120, the DSP 131 is configured so that an external audio signal can be input via an interface 140 from an external device such as a car navigation device (not shown).

  The master microcomputer 100 is connected to a bus terminal 27 provided on the back surface of the apparatus main body 2 (FIG. 4) via an interface 140. The bus terminal 27 is connected to an external device such as a CD changer device or a car navigation device (not shown). A sound source and a test signal generator described later can be connected.

  Here, for example, an external amplifier unit 160 is connected to the car audio apparatus 1 via an RCA connector made of, for example, a two-wire coaxial cable, and an audio signal output from the electronic volume circuit 132 is passed via the RCA connector. To the external amplifier unit 160. The external amplifier unit 160 is configured so that a plurality of speakers SP can be connected, and includes an amplifier circuit (not shown) of only the maximum number of speakers SP that can be connected (six in this embodiment), and the electronic volume circuit 132. Is amplified and output to each speaker SP currently connected. Of course, an amplifier circuit and a speaker may be incorporated in the apparatus main body 2 so that sound can be output without using the external amplifier unit 160.

  As described above, the DCP 3 includes the liquid crystal panel 5, the touch panel 6, and the operation keys 7, and further includes a display microcomputer 151 that controls each part of the DCP 3, and various types of liquid crystal panel 5 based on instructions from the display microcomputer 151. And an LCD driver 152 for displaying information. When the DCP 3 is mounted on the apparatus main body 2, the display microcomputer 151 of the DCP 3 and the master microcomputer 100 of the apparatus main body 2 are electrically connected by the connector contacts 24 and 32 to exchange various signals. For example, when the power / volume key 7A (see FIG. 1), which is one of the operation keys 7, is rotated and the volume is adjusted by the user, the rotation operation amount is detected by an encoder (not shown) and displayed. The data is transmitted from the microcomputer 151 to the master microcomputer 100. As a result, the master microcomputer 100 controls the electronic volume circuit 132 so that the reproduction volume becomes a volume corresponding to the rotation operation amount of the power / volume key 7A.

  A resistive film type touch panel is used as the touch panel 6, and when a hand touches the surface, a voltage signal corresponding to the position coordinates of the contact point is output to the display microcomputer 151, and the display microcomputer is based on the signal. The contact point coordinates are specified by 151. Thereby, it is identified which operation button displayed on the liquid crystal panel 5 is operated, and an operation corresponding to the operation is executed.

  By the way, the car audio apparatus 1 normally operates such that when the open / eject button 7C is operated, the DCP 3 is tilted and returns to the original closed state after a predetermined time (for example, 30 seconds) has elapsed. It is set to execute the open / close mode.

  The master microcomputer 100 is provided with a timer 100d. When the open / eject button 7C is operated, a predetermined time is measured by the timer 100d.

  When the car audio apparatus 1 is set to execute the open / close mode, the DCP 3 automatically moves to the closed state after a predetermined time has elapsed, so that the user can open the eject / eject button 7C and the like again to close the DCP 3. There is no need to operate. However, when the adjustment operator operates the test mode operation element 33 to adjust the brightness of the backlight of the liquid crystal panel 5, in this open / close mode, the DCP 3 is closed after a predetermined time has elapsed and is opened again. The DCP 3 must be tilted by operating the eject button 7C, which is cumbersome and hinders adjustment work. This adjustment work is performed in the production stage before the apparatus main body 2 is mounted on the vehicle, and it is not necessary for a general user or the like to perform this adjustment work after the vehicle is mounted.

  In the present embodiment, as shown in FIG. 6, a test signal generator 200 as an external device is connected to a bus terminal 27 of the apparatus main body 2 via a bus 27 a, and the apparatus main body 2 is connected to the test signal of the test signal generator 200. Is received, the test mode for maintaining the tilted state of the DCP 3 is executed. Hereinafter, the control operation of the master microcomputer 100 of the apparatus main body 2 that has received the test signal will be described. The test signal generator 200 is configured to always transmit a test signal during operation.

FIG. 7 is a flowchart showing the control operation of the master microcomputer 100.
First, the CPU 100a of the master microcomputer 100 determines whether or not a test signal is input from the test signal generator 200 connected to the apparatus main body 2 (step S1).

  When a test signal is input (step S1; Yes), the CPU 100a of the master microcomputer 100 stores adjustment data indicating that adjustment is being performed in a predetermined area of the RAM 100c (step S2). Next, the CPU 100a refers to the RAM 100c, and shifts to execute the test mode if it is set to execute the open / close mode, and if it is set to execute the test mode, the test mode To maintain.

  If no test signal is input in step S1 (step S1; No), the CPU 100a of the master microcomputer 100 erases the data under adjustment stored in a predetermined area of the RAM 100c (step S2). Next, the CPU 100a refers to the RAM 100c, and since the data being adjusted is erased, the CPU 100a shifts to the open / close mode when the test mode is set, and maintains the open / close mode when the open / close mode is set.

  FIG. 8 is a flowchart showing the control operation of the master microcomputer 100 when executing the test mode or the open / close mode.

  The CPU 100a of the master microcomputer 100 determines whether or not the time measured by the timer 100d has passed a predetermined time (step S11).

  When the predetermined time has not elapsed (step S11; No), the time measurement by the timer 100d is continued, and when the predetermined time has elapsed (step S11; Yes), the CPU 100a determines whether adjustment is being performed. (Step S12). That is, the CPU 100a determines whether or not it is a test mode.

  If it is being adjusted (step S12; Yes), that is, if it is in the test mode, the CPU 100a resets the timer 100d and measures the predetermined time again (step S13). That is, although the predetermined time has elapsed, the tilted state is maintained without returning the DCP 3 to the original closed state. As a result, the DCP 3 can be maintained in a tilted state even after a predetermined time has elapsed, so that the adjustment operator can easily operate the test mode operator 33 during the test mode, and the workability of the adjustment work is improved. It will improve.

  Next, in step S12, when the adjustment is not being performed (step S12; No), that is, in the closed mode instead of the test mode, the CPU 100a moves the DCP3 to the closed state in order to close the DCP3 as usual. Control is performed (step S14).

  As described above, according to the present embodiment, when the car audio device 1 is executing the test mode, the DCP 3 is maintained in the tilted state even though the predetermined time has elapsed. The test mode operation element 33 can be easily operated to improve the workability of the adjustment work, and the test mode operation element 33 is provided on the back surface 3B of the DCP 3 as a portion that is unlikely to be inadvertently operated by the user. Therefore, it is possible to prevent the brightness of the backlight of the liquid crystal panel 5 from being changed by the user.

  Further, according to the present embodiment, the car audio device 1 enters the test mode when the test signal from the test signal generator 200 is not received, that is, in a normal state where the test signal generator 200 is disconnected. Since the mode is not shifted, the open / close mode is normally executed, and the user does not shift to the test mode by operating the operation key 7 or the like, thereby preventing malfunction.

  The embodiment described above shows one aspect of the present invention, and does not limit the present invention, and can be arbitrarily changed within the scope of the present invention. Furthermore, the configuration shown in the embodiment is not limited thereto, and can be appropriately changed without departing from the gist of the present invention.

  For example, in the above-described embodiment, a case has been described in which the brightness of the backlight of the liquid crystal panel 5 is adjusted when the test mode operator 33 is operated. However, the present invention is not limited to this. When the mode operator 33 is operated, the brightness of an LED (not shown) arranged in the vicinity of the insertion slot 20 may be adjusted, or the blinking speed of the LED may be adjusted. Also good.

  In the above embodiment, the case where the test mode is executed when the test signal is received from the outside has been described. However, the present invention is not limited to this. For example, the test mode transition operation element is connected to the apparatus main body or the DCP. It is also possible to shift to the test mode when this test mode transition operator is operated. It should be noted that this test mode transition operator is preferably arranged at a location where it is not operated by the user.

  In the above embodiment, the case where the control program is stored in advance in the EEPROM 100b of the master microcomputer 100 has been described. However, the control program can be read by a computer such as a magnetic recording medium, an optical recording medium, or a semiconductor recording medium. It may be stored in a recording medium, and the computer may read this control program from the recording medium and execute it. The control program may be downloaded from a distribution server on the communication network.

It is a front view of the vehicle-mounted electronic apparatus which concerns on this Embodiment. It is a front view of the apparatus main body of a vehicle-mounted electronic device. It is a rear view of an operation panel. It is explanatory drawing for demonstrating tilting operation of an operation panel. It is a block diagram which shows the functional structure of the main body and operation panel of a vehicle-mounted electronic device. It is explanatory drawing for demonstrating the connection of a vehicle-mounted electronic device and a test signal generator. It is a flowchart which shows the control operation of a master microcomputer. It is a flowchart which shows the control action of a master microcomputer in the case of performing test mode or opening / closing mode.

Explanation of symbols

1 Car audio equipment (on-vehicle electronic equipment)
2 Main unit (main unit)
2A Front 3 DCP (operation panel)
3A Front 3B Rear 3C Upper end 3D Lower end 7C Open / eject button (operator for opening)
33 Test mode controls (controls)
100 Master microcomputer 100a CPU
100c RAM
100d timer 200 test signal generator

Claims (6)

In a vehicle-mounted electronic device that includes a main body mounted on a vehicle and includes an operation panel that is tiltably supported so as to cover the front of the main body.
When the operation panel is tilted, an open / close mode for returning the operation panel from the tilted state after a predetermined time has elapsed since the operation panel is tilted is provided. When the operation panel is tilted, the operation panel is A test mode for maintaining the operation panel in a tilted state even though the predetermined time has elapsed since tilting;
An in-vehicle electronic device according to claim 1, wherein a test mode operation element capable of being operated in the test mode is provided on a back surface of the operation panel. The in-vehicle electronic device according to claim 1, wherein when the main body receives a test signal from the outside, the main body shifts from the open / close mode to the test mode. Wherein the operation panel is opened for the operator is provided, this time the opening manipulation member is operated, vehicle-mounted electronic apparatus according to claim 1 or 2, characterized in that tilting the operation panel. The in-vehicle electronic device according to any one of claims 1 to 3, wherein when the operation panel is tilted, an upper end of the operation panel slides downward, and a lower end of the operation panel slides forward. . The display panel is provided in front of the operation panel, and the test mode operation element is an operation element for adjusting the display panel. The vehicle-mounted electronic device of description. An in-vehicle system that includes a main body mounted on a vehicle, includes an operation panel that is tiltably supported so as to cover the front surface of the main body, and an operation element for adjusting the operation panel is provided on the rear surface of the operation panel. In a control method of an electronic device,
When the operation panel is tilted, a first step of executing an open / close mode for returning the operation panel from the tilted state after a predetermined time has elapsed after tilting the operation panel;
A second step of executing a test mode for maintaining the operation panel in a tilted state even when the predetermined time has elapsed since the operation panel is tilted when the operation panel is tilted. A control method for an in-vehicle electronic device.

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