JP2008072274A - Recording apparatus, recording control device, and recording control method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent a remaining amount of a battery from becoming deficient upon recording in a recording apparatus having a reservation function of starting and finishing recording in accordance with reservation. <P>SOLUTION: An in-vehicle device 1 operable based on the electric power of a battery 12, when reservation information including information indicating the time of starting and the time of finishing recording and including information designating a recording object is inputted by the operation of an operation part 21, estimates a remaining amount of the battery 12 and predicts a necessary amount of electric power in order to perform recording based on the input reservation information. The device further determines based on the remaining amount of the battery 12 and the predicted amount of electric power whether or not recording based on the reservation information is executable and controls the reservation based on a determination result. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a recording apparatus that records information such as video and audio, a recording control apparatus that controls the recording apparatus, and a recording control method.

2. Description of the Related Art Conventionally, recording apparatuses that receive television or radio broadcasts and record program video and / or audio are known that have a reservation function for receiving and recording a designated program at a designated time. It has been. (For example, refer to Patent Document 1). In such a recording apparatus, at the time of reservation, recording start date / time, recording end date / time, and information specifying a program or broadcasting station to be recorded are input, and a recording medium for recording video or audio is set. Then, the recording device waits until the designated time and executes the designated recording. This makes it possible to record programs that are broadcast when the user is absent, which is extremely convenient.
JP 2001-333336 A

  By the way, when trying to realize a recording apparatus having a reservation function as described above by battery driving, there is a possibility that the reserved recording operation cannot be completed if the remaining amount of the battery is insufficient during execution of recording. As described above, the reservation function is often used when the user is absent, and it is necessary for the user to monitor the battery state during recording and to prepare another power source when the remaining amount is insufficient. If so, the convenience of the reservation function is significantly impaired.

  Therefore, the present invention has been made in view of the above-described problems, and prevents a shortage of remaining battery power during recording in a recording apparatus having a reservation function that starts and ends recording when a reservation is made. For the purpose.

  In order to solve the above-described problems, the present invention provides a recording apparatus that receives information from a battery and records information, and reservation information including information indicating the start and end times of recording and information specifying a recording target. When input by a user, a remaining amount detecting means for determining the remaining amount of the battery, a power predicting means for predicting an amount of power necessary for recording based on the reservation information, the remaining amount of the battery and the A determination unit that determines whether recording based on the reservation information is feasible based on the amount of power predicted by the power prediction unit, and a reservation that stores the reservation information based on a determination result by the determination unit There is provided a recording apparatus comprising: an information storage unit; and a recording execution unit that performs recording in accordance with reservation information stored in the storage unit.

  Here, the information recorded by the recording device includes various types of information such as video, audio, and characters, and a plurality of types of information (for example, video and audio) may be associated and recorded simultaneously. Further, the information indicating the recording start and end times is specifically information indicating at least the hour and the minute among the year, month, day, hour, minute, and second of the recording start and end. In addition, as the information for specifying the recording target, for example, when recording video and audio to be broadcast and receiving only audio or audio, only information for selecting a channel and a program to be broadcast are specified. Information etc. can be mentioned, but its specific configuration is arbitrary.

  According to the present invention, in a recording apparatus that receives power from a battery and records information, when the reservation information is input by the user, the remaining amount of the battery and the amount of power required for the recording operation based on the reservation information Based on the above, it is determined whether or not the recording can be executed based on the reservation information, the reservation information is stored based on the determination result, and recording is performed according to the stored reservation information. Thereby, for example, since reservations that exceed the remaining battery level can be prevented by mistake, it is possible to prevent a shortage of remaining battery level during execution of recording.

In the present invention, the power predicting unit predicts a power amount necessary for each reservation information when a plurality of the reservation information is input by a user, and the determining unit is configured to Based on the total amount of power predicted for each reservation information, it may be determined whether or not recording based on all the reservation information is possible.
In this case, when a plurality of reservation information is input, the required power amount is predicted for each reservation information, and based on the total amount of the predicted power amount and the remaining amount of battery, based on all the reservation information It is determined whether the recording can be executed. Thereby, when a plurality of reservation information is input, it is possible to reliably prevent a shortage of the remaining amount of the battery when recording is executed.

In the present invention, there is provided a guidance unit for guiding the change or deletion of the reservation information in order to reduce the required electric energy when the determination unit determines that all the input reservation information cannot be executed. You may do it.
In this case, when the input reservation information does not match the remaining battery level, the user can easily change or delete the reservation information by guiding the user to change or delete the reservation information. It can be expected to save the trouble of inputting reservation information.

Further, in the present invention, when recording is started by the recording execution unit based on the reservation information, whether or not recording can be executed for all the unexecuted reservation information stored in the reservation information storage unit. When the determination unit determines that the reservation information is not executable, the reservation unit includes a reservation control unit that controls not to perform recording based on a part of the reservation information that is not executed. Good.
In this case, it is determined whether or not the recording based on the unexecuted reservation information can be executed when the recording is executed. If the recording is not possible, the recording based on a part of the unexecuted reservation information is not performed. The battery capacity will not run out during recording based on the. Thereby, the malfunction that the recording based on one reservation information stops on the way can be prevented.

In the present invention, each of the reservation information stored in the reservation information storage means is prioritized, and the reservation control means executes all the reservation information that has not been executed by the determination means. If it is determined that the recording cannot be performed, control may be performed so that recording based on the reservation information having a low priority is not performed.
In this case, it is determined whether or not recording based on unexecuted reservation information can be executed when recording is performed. If not, it is determined that a part of the unexecuted reservation information is determined according to a predetermined priority. Since the recording based on the information is not performed, it is possible to reliably execute the recording based on the reservation information having a high priority, and to prevent the battery capacity from being insufficient. Further, it is possible to give priority to highly important reservation information by making a difference in the processing of reservation information according to the priority order.

  According to the present invention, in a recording control apparatus that controls a recording apparatus that records information upon receiving power from a battery, reservation information including information indicating a recording start time and an end time and information specifying a recording target is stored. When input by a user, a remaining amount detecting means for determining the remaining amount of the battery, a power predicting means for predicting an amount of power necessary for recording based on the reservation information, the remaining amount of the battery and the A determination unit that determines whether or not recording based on the reservation information is executable based on the amount of power predicted by the power prediction unit, and a reservation control unit that controls a reservation based on a determination result by the determination unit And a recording control apparatus comprising:

  According to the present invention, in a recording control apparatus that controls a recording apparatus that receives information from a battery and records information, when reservation information is input by a user, the remaining battery level and recording based on the reservation information Based on the amount of power required for the operation, whether or not recording can be executed based on the reservation information is determined, and the reservation is controlled based on the determination result. Thereby, for example, since reservations that exceed the remaining battery level can be prevented by mistake, it is possible to prevent a shortage of remaining battery level during execution of recording.

Furthermore, the present invention provides a recording control method for controlling a recording device that records information upon receiving power from a battery, and includes information indicating the start and end times of recording and information specifying a recording target. When the reservation information including is input by the user, the remaining amount of the battery is obtained, the amount of power necessary for recording based on the reservation information is predicted, and the remaining amount of the battery and the predicted amount of power are calculated. A recording control method is characterized by determining whether or not recording based on the reservation information is feasible and controlling the reservation based on the determination result.
According to the present invention, in a recording apparatus that receives power from a battery and records information, when the reservation information is input by the user, the remaining amount of the battery and the amount of power required for the recording operation based on the reservation information Based on the above, it is determined whether or not the recording can be executed based on the reservation information, and the reservation is controlled based on the determination result. Thereby, for example, since reservations that exceed the remaining battery level can be prevented by mistake, it is possible to prevent a shortage of remaining battery level during execution of recording.

  According to the present invention, since the remaining battery level is taken into account when making a reservation, it is possible to reliably prevent a shortage of remaining battery level during the recording operation.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a block diagram illustrating a configuration of an in-vehicle device 1 according to an embodiment of the present invention.
A vehicle-mounted device 1 as a recording device and a recording control device is a device that is mounted on a vehicle, receives broadcast radio waves such as digital terrestrial television broadcasting, and records (records) a broadcast program. The in-vehicle device 1 operates based on the power supplied from the vehicle via the ACC power supply line 2, but can operate based on the built-in battery 12 when power is not supplied due to parking or stopping of the vehicle. It is configured as follows.

As shown in FIG. 1, the in-vehicle device 1 includes a battery 12 and a charging unit 11 that charges the battery 12 with the power supplied from the ACC power supply line 2. A switching unit 13 that switches between the power supplied from the ACC power supply line 2 and the battery 12 is provided.
Further, the in-vehicle device 1 includes a power distribution circuit unit 14 that distributes power supplied by switching by the switching unit 13 to each unit of the in-vehicle device 1, a remaining battery level detection unit 15 that detects the remaining amount of the battery 12, and the in-vehicle device 1. The microcomputer 16 that controls each part of the above, the tuner unit 17 that receives the broadcast radio wave by the antenna 17a, the reception state detection unit 18 that detects the reception state in the tuner unit 17, and the audio and video of the broadcast program received by the tuner unit 17 are recorded. A display unit 20 that displays an operation state of the in-vehicle device 1 and an image recorded by the recording unit 19, and an operation unit 21 having a switch for operating the in-vehicle device 1. Moreover, although the vehicle-mounted apparatus 1 is provided with the speaker which outputs an audio | voice, it does not show in figure here.

The ACC power supply line 2 supplies DC power of a predetermined voltage (for example, 14 volts) while ACC (accessory) power is supplied from a battery (not shown) or a power generation device (not shown) mounted on the vehicle. Power line.
The charging unit 11 charges the battery 12 in a state where DC power is supplied through the ACC power supply line 2. The battery 12 can be charged whether the in-vehicle device 1 is operating or stopped. The charging unit 11 can also perform control such as voltage conversion of a DC power supply from the ACC power supply line 2 and overcharge protection of the battery 12. The connecting portion between the charging unit 11 and the ACC power supply line 2 is configured to be detachable, and the ACC power supply line 2 can be detached from the in-vehicle device 1.

  The switching unit 13 detects the supply state of the DC power supply by the ACC power supply line 2 and switches and connects the ACC power supply line 2 and the battery 12 to the power distribution circuit unit 14 according to the supply state. That is, in a state where DC power is supplied from the ACC power supply line 2, this DC power is connected to the power distribution circuit unit 14. Further, the battery 12 is connected to the power distribution circuit unit 14 in a state where power is not supplied from the ACC power supply line 2.

  The battery remaining amount detecting unit 15 as the remaining amount detecting means detects the remaining amount (remaining capacity) in the battery 12 and outputs information indicating the detected remaining amount to the microcomputer 16. The battery remaining amount detection unit 15 detects, for example, the output voltage of the battery 12 or the voltage across the cells (not shown) constituting the battery 12 or integrates the input / output current of the battery 12 to Detect the remaining amount.

The tuner unit 17 is connected to an antenna 17a installed outside or inside the vehicle. The tuner unit 17 receives broadcast radio waves such as terrestrial digital television broadcasts, satellite digital broadcasts, terrestrial analog television broadcasts, and radio broadcasts such as FM and AM via the antenna 17a. The tuner unit 17 selects a channel according to the control of the microcomputer 16, decodes or demodulates the selected broadcast signal, generates a video signal and an audio signal, or only an audio signal, and outputs it to the recording unit 19.
In the present embodiment, the tuner unit 17 can receive at least a 12-segment broadcast of a terrestrial digital television broadcast and a 1-segment broadcast, but it is of course possible to receive other broadcasts.

The recording unit 19 includes a recording medium such as a magnetic recording medium, a magneto-optical recording medium, an optical recording medium, or a semiconductor storage device. The recording unit 19 encodes the video signal and the audio signal input from the tuner unit 17 in a predetermined recording format under the control of the microcomputer 16 and records the encoded signal on the recording medium. In the present embodiment, the recording unit 19 can use at least two types of recording formats for recording video signals: an uncompressed format and a compressed format that compresses the data amount by a predetermined compression method. The recording unit 19 can also record only the audio signal under the control of the microcomputer 16 when the audio signal and the video signal are input from the tuner unit 17. Note that the recording unit 19 may be configured to select a plurality of types of formats such as a high image quality mode, a standard image quality mode, and a low image quality mode as the compression format.
The recording unit 19 outputs the video signal input from the tuner unit 17 to the display unit 20 to display the video on the display unit 20, and the audio signal input from the tuner unit 17 is transmitted to the speaker (not shown). ) To output audio.

  The display unit 20 includes a display screen such as an LCD (liquid crystal display) panel or an organic EL (Electro-Luminescence) panel, and an operation screen for operating the in-vehicle device 1 by the operation unit 21 on the display screen, and An image being received by the tuner unit 17 and an image recorded by the recording unit 19 are displayed.

  In addition to various switches such as push button switches, key switches, and rotary switches, the operation unit 21 includes a touch panel disposed on the display screen of the display unit 20, and receives operation signals indicating operations on the various switches and the touch panel. It is generated and output to the microcomputer 16.

The microcomputer 16 controls each part of the in-vehicle device 1 by executing a program built in advance.
Specifically, the microcomputer 16 controls the tuner unit 17 to select a broadcast from the broadcasting station instructed by the operation unit 21 when receiving the broadcast is instructed by the operation of the operation unit 21. The video signal and the audio signal are received. Further, the microcomputer 16 controls the recording unit 19 and the display unit 20 to display the video output from the tuner unit 17 on the display unit 20. Further, the microcomputer 16 has a clocking function for clocking the current time and date.

  Further, when the recording of the broadcast is instructed by the operation of the operation unit 21, the microcomputer 16 selects the channel by the tuner unit 17, and the video signal and the audio signal output from the tuner unit 17 are here recorded by the recording unit 19. Let me record.

The in-vehicle device 1 has a reservation function for instructing in advance recording of a program to be broadcast in the future. In the reservation function, when the user operates the operation unit 21 and inputs reservation information including a broadcasting station, recording start and end dates and times, a program name, and the like for a program to be recorded, the in-vehicle device 1 operates based on the reservation information. After setting the above, stop the operation and shift to the standby state. When the time specified by the reservation information is reached, the in-vehicle device 1 starts operating, receives a broadcast, and records program video and audio.
Furthermore, the in-vehicle device 1 has a function of determining whether or not recording can be performed as reserved based on the remaining amount of the battery 12 when recording is reserved by the reservation function. As described above, the in-vehicle device 1 can operate using the battery 12 as a power source even when there is no power supply from the ACC power supply line 2 while the vehicle is parked or stopped. However, since the capacity of the battery 12 is limited, when a reservation for recording a large number of programs or a program for a long time is made, a situation may occur in which all the reserved contents cannot be recorded. Therefore, the in-vehicle device 1 accepts a reservation when the remaining amount of the battery 12 is sufficient.

In order to realize the above reservation function, the microcomputer 16 executes a reservation process (FIG. 2) described later when a broadcast recording reservation is instructed by an operation of the operation unit 21.
In the reservation process, reservation information is input by operating the operation unit 21. The reservation information is information including information indicating a recording start date, information indicating a recording end date, information specifying a program to be recorded or a broadcasting station that broadcasts the program, information indicating a recording format, and the like. Since the in-vehicle device 1 executes recording with one piece of reservation information as one unit, for example, one piece of reservation information corresponds to one program, but when recording a plurality of programs having continuous broadcast times, These multiple programs may be combined into one reservation information.

In the reservation processing, when the reservation information is input by operating the operation unit 21, the microcomputer 16 acquires the reservation information, predicts the amount of power required for recording according to the reservation information, and further determines the remaining battery power. Based on the remaining amount of the battery 12 detected by the amount detection unit 15, it is determined whether recording can be performed according to the reservation information. Here, a plurality of pieces of reservation information can be input by the operation unit 21. These pieces of reservation information may have the reservation start and end dates and times, or may be dates and times apart from each other. It does not matter whether the stations to be selected are the same.
If the microcomputer 16 determines that recording cannot be performed due to a shortage of the remaining capacity of the battery 12, the microcomputer 16 notifies the fact by displaying on the display unit 20 and corrects or deletes the reservation information. An operation screen is displayed on the display unit 20.

In addition, when a plurality of reservation information is input, a priority is set for each reservation information for the purpose of convenience when deleting the reservation information. This priority order is provisionally set by the processing of the microcomputer 16 and can be changed by the operation of the operation unit 21 thereafter.
As described above, the microcomputer 16 determines whether or not execution is possible based on the remaining amount of the battery 12 when the reservation information is input. For this reason, the reservation information for which the setting has been completed should be able to be recorded, but for example, due to environmental factors such as the deterioration of the battery 12 and the temperature, the remaining amount of the battery 12 is significantly depleted beyond prediction, There is a possibility that reservation information cannot be executed. As described above, when the remaining amount of the battery 12 is insufficient during actual recording, the microcomputer 16 stops recording the reservation information having the lowest priority. That is, when the remaining capacity of the battery 12 is insufficient, the reservation information having a higher priority is recorded with priority.
Hereinafter, reservation processing and recording processing for realizing the reservation function will be described in detail.

FIG. 2 is a flowchart showing the reservation process. During execution of the reservation process, the microcomputer 16 functions as a power prediction unit, a determination unit, a reservation control unit, and a guide unit, and the memory 16a functions as a reservation information storage unit.
In the reservation process, first, reservation information is input by operating the operation unit 21 (step S11). When the microcomputer 16 acquires the input reservation information (step S12), the microcomputer 16 sets a temporary priority for the acquired reservation information (step S13). The provisional priority order is a priority order provisionally set as described above. For example, every time one piece of input information is input, the priority order is set sequentially from the highest priority order.

The processes of steps S11 to S13 are repeated until the input of all reservation information is completed. When the input is completed (step S14; Yes), the microcomputer 16 detects the remaining battery level (step S15). In step S <b> 15, the microcomputer 16 causes the remaining battery level detection unit 15 to detect the remaining battery level and obtains a detection value.
Moreover, the microcomputer 16 calculates the predicted value of the electric energy required for recording according to the reservation information for each reservation information acquired in step S11 (step S16). As a specific example, the microcomputer 16 obtains a recording execution time based on the recording start date and the recording end date and calculates a predicted value of the required electric energy based on this time and the recording format. To do. In step S17, based on the time when the reservation process is performed, the predicted value may be obtained in consideration of the amount of power consumed by the in-vehicle device 1 before the start of recording.

Then, the microcomputer 16 determines whether or not the recording based on the reservation information can be performed based on the remaining amount of the battery 12 acquired in step S15 and the necessary electric energy calculated in step S16 (step S17). When a plurality of reservation information is input by the operation unit 21, in step S17, the recording is executed by comparing the total amount of power calculated for each of the plurality of reservation information with the remaining amount of the battery 12. Determine whether it is possible.
If it is determined that all the reservation information can be recorded, the microcomputer 16 stores the reservation information in the memory 16a and sets the recording according to the reservation information (step S18), and shifts to a standby state. (Step S19). This standby state is a state in which almost all the operations of the in-vehicle device 1 except the timing operation are stopped until the recording start time in order to reduce power consumption.

Further, as a result of comparing the remaining amount of the battery 12 acquired in step S15 and the required power amount calculated in step S16, when it is determined that recording cannot be executed based on all the reservation information (step S17; No), the reservation is made. Moves to an operation for changing or deleting information.
That is, the microcomputer 16 displays a list of reservation information on the display screen of the display unit 20 and displays a list of solution methods as a list (step S20). Complementing the solution displayed here is a method for reducing the amount of power required by changing the contents of the reservation information. As a specific example of the solution, if the broadcast received by the tuner unit 17 is changed from 12-segment broadcast to 1-segment broadcast, the amount of information related to reception and decoding decreases, so the tuner unit 17 and the recording unit 19 The amount of power consumed by is reduced. Further, if the video and audio recording formats are changed to non-compressed, the power consumption of the recording unit 19 is reduced. In step S20, the above solution is displayed in a list corresponding to each reservation information.

Here, when an instruction to change the priority order of the reservation information displayed in a list is input (step S21; Yes), the priority order is changed according to the instruction (step S22).
In addition, when an operation for selecting a solution from among the candidates displayed in the list is performed, the microcomputer 16 acquires the operation (step S23), and calculates the amount of power required when the selected solution is applied. Calculate (step S24).
For example, for a certain reservation information, when a solution for changing from 12-segment broadcasting to 1-segment broadcasting is selected, the microcomputer 16 is necessary for recording based on the reservation information in accordance with the condition of receiving and recording 1-segment broadcasting. Calculate the amount of power.

  Then, the microcomputer 16 determines whether or not recording based on all the reservation information can be executed based on the electric energy calculated in step S25 and the remaining amount of the battery 12 acquired in step S15 (step S25). If it is determined that all the reservation information can be recorded, the process proceeds to step S18. If it is determined that recording cannot be executed based on all reservation information, the process returns to step S20 to display a list of solution candidates.

FIG. 3 is a diagram illustrating an example of a screen displayed by the display unit 20 in the reservation process.
The reservation screen 30a shown in FIG. 3 is an example of a screen displayed when the remaining amount of the battery 12 is insufficient with respect to the input reservation information (step S20).
A message display unit 31 is arranged at the top of the reservation screen 30a, and a message indicating that the remaining battery level is insufficient is displayed here.
In addition, an indicator indicating the remaining amount of the battery 12 is displayed on the remaining battery amount display unit 32 disposed at the top of the reservation screen 30a. In this indicator, for example, an amount that can be reliably estimated at the start of recording and an amount that may be consumed until the start of recording are displayed in different colors.

The contents of the input reservation information are displayed for each reservation information at the center and the lower part of the reservation screen 30a. In the reservation screen 30 a, display areas related to one reservation information are virtually stacked, and each reservation information can be switched and displayed by operating the reservation information tab 33.
In this display area, priority change instruction units 40a and 40b for changing the priority order related to the currently displayed reservation information, and a program content display part for displaying the contents of the program related to the currently displayed reservation information 41, and solution display sections 42 to 45 relating to the reservation information currently displayed are displayed in a list.
As described above, the operation unit 21 includes a touch panel disposed on the display screen of the display unit 20. Therefore, the user can perform a selection operation simply by touching the display positions of the reservation information tab 33, the priority order change instruction units 40a and 40b, and the solution display units 42 to 45 on the reservation screen 30a.

  In the solution display sections 42 to 45, methods for changing the contents of the reservation information being displayed so as to reduce the required amount of power are displayed. Here, before displaying each of the solutions displayed on the solution display units 42 to 45, the microcomputer 16 adopts the solution so that all the reservation information can be recorded in advance. The amount of reduction of the amount may be calculated and compared with the shortage of the remaining amount of the battery 12.

In a state where the reservation screen 30a is displayed, the user refers to an indicator displayed on the remaining battery level display unit 32, and selects one of the solution display units 42 to 45 to obtain an appropriate solution. Select and change reservation information to reduce the amount of power required. For example, the amount of power may be significantly reduced for one piece of reservation information, or the amount of power may be reduced by changing a plurality of reservation information. Further, the user can change the priority order of the reservation information by operating the priority order change instruction units 40a and 40b.
In this way, using the reservation screen 30a, the reservation information can be easily changed when recording based on all the reservation information cannot be completed due to a shortage of the remaining amount of the battery 12.
The reservation screen 30a may be provided with an operation unit for instructing deletion of reservation information and an operation unit for instructing start of input of new reservation information.

FIG. 4 is a diagram illustrating another example of a screen displayed by the display unit 20 in the reservation process.
The reservation screen 30a shown in FIG. 4 is an example of a screen displayed when the remaining amount of the battery 12 is insufficient with respect to the input reservation information (step S20).
A message display unit 51 is arranged at the top of the reservation screen 30b, and a message indicating that the remaining battery level is insufficient is displayed here. Further, a battery remaining amount display portion 32 extending vertically is arranged at the left end of the reservation screen 30b, and an indicator or the like indicating the remaining amount of the battery 12 is displayed. In this indicator, for example, an amount that can be reliably estimated at the start of recording and an amount that may be consumed until the start of recording are displayed in different colors.
In addition, on the left side of the reservation screen 30b, an electric energy display unit 53 is arranged side by side with the battery remaining amount display unit 52. In the power amount display section 53, the power amount required for each reservation information is arranged vertically according to the priority order of the reservation information, and is displayed in, for example, colors.
For this reason, if the battery remaining amount display part 52 and the electric energy display part 53 are compared, not only whether the remaining amount of the battery 12 is sufficient but also the electric energy corresponding to each reservation information can be compared. Furthermore, there is an advantage that the shortage of the remaining amount of the battery 12 can be easily visually recognized.

  In addition, priority level change instruction units 54a and 54b for changing the priority level related to the reservation information are arranged at the upper and lower ends of the power amount display unit 53. By operating the priority change instruction units 54a and 54b, the priority of each reservation information can be easily changed. Here, since the priority order of each reservation information can be easily recognized as the display order in the power amount display unit 53, the operation for changing the priority order is also an intuitive and easy operation.

From the center to the right end of the reservation screen 30b, the contents of the input reservation information are displayed for each reservation information. In the reservation screen 30b, display areas related to one piece of reservation information are arranged side by side, and when one display area is selected from among the display areas, the display area is expanded to the left end of the screen and the reservation information is displayed. Solution display portions 61 to 65 showing such a solution are displayed.
For example, in the reservation screen 30 b shown in FIG. 4, “1seg format” is displayed on the solution display unit 61. This is a solution for reducing power consumption by setting to receive a one-segment broadcast of a program related to this reservation information. As indicated by “battery usage: small” on the solution display 61, the power consumption associated with the operation of the tuner unit 17 is usually greater when receiving 1 segment broadcast than when receiving 12 segment broadcast. Few.
Further, for example, “12 seg uncompressed” is displayed on the solution display unit 62. This is a solution for reducing power consumption by receiving a 12-segment broadcast of a program related to the reservation information and setting the recording format by the recording unit 19 to an uncompressed format. Solution Display unit 61 displays “battery usage: medium”. When receiving a 12-segment broadcast, the amount of power consumption is greater than when receiving a 1-segment broadcast, but the recording format is set to an uncompressed format. As a result, the amount of power required to compress information can be saved.
Further, for example, “sound only” is displayed on the solution display unit 64. This is a solution for reducing power consumption by setting to record only the audio of the program related to the reservation information. As the solution display unit 61 displays “battery usage: minimal”, the power consumption in the recording unit 19 can be greatly saved by not recording video.

  In the solution display sections 61 to 65, methods for changing the contents of the reservation information being displayed so as to reduce the required power amount are displayed. Here, the microcomputer 16 may also display the amount of power reduced by adopting the solution before displaying each of the solutions displayed on the solution display units 61 to 65.

  In a state where the reservation screen 30b is displayed, the user refers to the battery remaining amount display unit 52 and the electric energy display unit 53, and selects one of the solution display units 61 to 65 for one or a plurality of reservation information. By doing so, it is possible to change the reservation information by selecting an appropriate solution and reduce the required amount of power.

  With the above reservation processing, when the user operates the operation unit 21 to input reservation information, the reservation information is set if the remaining amount of the battery 12 is sufficient with respect to the input reservation information. It is possible to surely prevent the problem that the recording as scheduled due to lack of remaining capacity cannot be performed. If the remaining amount of the battery 12 is insufficient with respect to the input reservation information, the reservation information is changed while referring to the screens such as the reservation screens 30a and 30b displayed on the display unit 20, and the battery Reservations can be made according to the remaining 12 remaining.

FIG. 5 is a flowchart showing a recording process for receiving and recording a broadcast according to the contents reserved by the reservation process shown in FIG. In this recording process, the microcomputer 16 functions as a recording execution unit.
The microcomputer 16 that has shifted to the standby state in step S19 in FIG. 2 refers to the internally timed time and waits until the recording information recording start time arrives (step S41). When the recording start time is reached (step S41; Yes), the microcomputer 16 acquires a detection value obtained by detecting the remaining amount of the battery 12 by the battery remaining amount detection unit 15 (step S42). Based on the operation of the electric energy calculated in step S16 or step S24 of FIG. 2, it is determined whether or not recording based on all the reservation information can be executed (step S43). In this step S43, the microcomputer 16 determines only the reservation information that has not been executed, except for the reservation information that has already been executed, among the set reservation information.

  Here, when recording based on all the reservation information can be executed, the microcomputer 16 controls the tuner unit 17 and the recording unit 19 according to the reservation information to execute recording (step S44), and recording based on all the reservation information. Is completed, the process ends. If there is unexecuted reservation information, the process returns to step S41.

  If it is determined that recording based on all the reservation information cannot be executed, the microcomputer 16 performs a process of deleting the reservation information with the lowest priority (step S46), and returns to step S43. This ensures that reservation information with high priority can be executed.

As described above, the in-vehicle device 1 according to the embodiment to which the present invention is applied is configured to be capable of performing a recording operation of receiving a broadcast and recording video and / or audio based on the power of the battery 12, When the reservation information is input by the above, whether or not recording can be executed based on the reservation information is determined based on the remaining amount of the battery 12 and the predicted value of the electric energy required for the recording operation based on the reservation information. The reservation exceeding the remaining amount of the battery 12 is not erroneously made, and the shortage of the remaining battery amount at the time of executing the recording can be prevented.
Here, when a plurality of reservation information is input by the operation of the operation unit 21, the power amount necessary for each reservation information is predicted, and based on the predicted total amount of power and the remaining amount of the battery 12, Since it is determined whether or not the recording based on all the reservation information can be executed, it is possible to reliably prevent the battery 12 from remaining short even when a plurality of pieces of reservation information are input.

  In addition, when the input reservation information does not match the remaining amount of the battery 12, the reservation screens 30a and 30b are displayed to guide the user to change or delete the reservation information. Can be easily changed or deleted, and it can be expected to save time and effort for inputting reservation information.

Furthermore, when executing recording, it is determined whether or not recording based on unexecuted reservation information can be executed. If recording is not possible, recording based on part of the unexecuted reservation information is not performed. The capacity of the battery 12 does not become insufficient during execution of recording based on the above. Thereby, the malfunction that the recording based on one reservation information stops on the way can be prevented.
Here, when it is not possible to execute all the recordings based on the unexecuted reservation information, the reservation information having the lowest predetermined priority is controlled not to be recorded. It is possible to prevent a shortage of the capacity of the battery 12 while reliably executing the recording based on the data. Further, it is possible to give priority to highly important reservation information by making a difference in the processing of reservation information according to the priority order.

In the in-vehicle device 1, when the reservation information is input through the operation unit 21, the reservation screens 30 a and 30 b are displayed. Since the reservation screens 30a and 30b display the remaining amount of the battery 12, and the recording format of video and audio, the user can change the recording format of the reservation information while checking the remaining amount of the battery 12, etc. Reservations that take into account the remaining amount can be easily made. Furthermore, since the power amount necessary for recording information based on the reservation information is displayed on the reservation screen 30b, the remaining amount of the battery 12 and the required power amount can be easily determined by looking at the reservation screen 30b. I can grasp. Thereby, the reservation operation in consideration of the remaining amount of the battery 12 can be easily performed.
The reservation screen 30b displays the power amount required for each reservation information for a plurality of reservation information, so that the relationship between the input reservation information and the required power amount can be easily grasped, and each reservation information There is an advantage that the amount of electric power can be compared.

In addition, the reservation screen 30b displays the total amount of required power in addition to the required amount of power for each of the plurality of reservation information, so is the remaining amount of the battery 12 sufficient for all the reservation information? It is possible to easily grasp whether or not recording is possible and easily determine whether or not recording is possible.
In addition, in the reservation screen 30b, when a recording priority order is set for a plurality of reservation information, the necessary power amount is displayed for each reservation information according to this priority order. However, there is an advantage that it is possible to determine whether or not the priority order is appropriate.

In addition, the said embodiment shows an example of the embodiment of this invention, and the scope of application of this invention is not limited to the said embodiment. For example, in the above-described embodiment, the in-vehicle device 1 that can execute both the reservation process and the recording process has been described. However, the present invention is not limited to this, and the recording that can execute the reservation process is performed. You may comprise separately a control apparatus and the recording apparatus which receives and records a broadcast under control of this recording control apparatus.
Further, in the above embodiment, the case where the in-vehicle device 1 receives the terrestrial digital television broadcast has been described. However, the present invention is not limited to this, and the satellite digital broadcast or the radio broadcast is received. Also good. In addition, when receiving a digital broadcast, the program guide may be displayed when reservation information is input using electronic program guide (EPG) information broadcast together with the program.

  Further, for example, the in-vehicle device 1 according to the above-described embodiment has been described as including the display unit 20, but the present invention is not limited to this, and for example, in a vehicle in which the in-vehicle device 1 is mounted. A display screen included in an installed car navigation device or car audio device may be used instead of the display unit 20. Similarly, instead of the operation unit 21, an operation interface provided in the car navigation device or the car audio device may be used. In this case, an in-vehicle device 1 may be provided with an interface for connecting the car navigation device or the car audio device to the in-vehicle device 1. Furthermore, the operation unit 21 included in the in-vehicle device 1 may be configured as a remote operation device that is wired or wirelessly connected, and the antenna 17a may be configured to utilize an antenna already installed in the vehicle. Of course, the configuration can be arbitrarily changed.

It is a block diagram which shows the structure of the vehicle-mounted apparatus which concerns on embodiment to which this invention is applied. It is a flowchart which shows the reservation process performed by a vehicle-mounted apparatus. It is a figure which shows an example of the screen displayed in a reservation process. It is a figure which shows another example of the screen displayed in a reservation process. It is a flowchart which shows the recording process performed by a vehicle-mounted apparatus.

Explanation of symbols

1 In-vehicle device (recording control device, recording device)
2 ACC power supply line 11 Charging unit 12 Battery 13 Switching unit 14 Power distribution circuit unit 15 Battery remaining amount detecting unit (remaining amount detecting means)
16 microcomputer (power prediction means, determination means, reservation control means, guidance means, recording execution means)
16a memory (reservation information storage means)
17 Tuner unit 18 Reception state detection unit 19 Recording unit 20 Display unit 21 Operation unit 30a, 30b Reservation screen

Claims (7)

In a recording device for recording information by receiving power from a battery,
A remaining amount detecting means for determining a remaining amount of the battery when reservation information including information indicating a recording start time and an end time and information specifying a recording target is input by a user;
Power prediction means for predicting the amount of power required to perform recording based on the reservation information;
Determination means for determining whether or not recording based on the reservation information is executable based on the remaining amount of the battery and the amount of power predicted by the power prediction means;
Reservation information storage means for storing the reservation information based on a determination result by the determination means;
Recording execution means for recording according to the reservation information stored in the storage means;
A recording apparatus comprising: The power predicting means predicts a power amount required for each reservation information when a plurality of the reservation information is input by a user,
The determination means determines whether or not recording based on all of the reservation information is possible based on the total amount of power predicted for each reservation information by the power prediction means;
The recording apparatus according to claim 1. A guide means for guiding the change or deletion of the reservation information in order to reduce the required amount of electric power when the determination means determines that execution of all the input reservation information is not possible;
The recording apparatus according to claim 1 or 2. When recording is started by the recording execution unit based on the reservation information, the determination unit determines whether or not recording can be performed for all the unexecuted reservation information stored in the reservation information storage unit. A reservation control means for controlling not to perform recording based on a part of the reservation information among the reservation information that has not been executed when it is determined that the reservation information is not executable;
The recording apparatus according to claim 1, wherein the recording apparatus is a recording apparatus. A priority is determined for each of the reservation information stored in the reservation information storage means,
The reservation control means, when it is determined by the determination means that it is not possible to execute all of the reservation information that has not been executed, control to prevent recording based on the reservation information having a low priority,
The recording apparatus according to claim 4. In a recording control apparatus that controls a recording apparatus that records information by receiving power from a battery,
A remaining amount detecting means for determining a remaining amount of the battery when reservation information including information indicating a recording start time and an end time and information specifying a recording target is input by a user;
Power prediction means for predicting the amount of power required to perform recording based on the reservation information;
Determination means for determining whether or not recording based on the reservation information is executable based on the remaining amount of the battery and the amount of power predicted by the power prediction means;
Reservation control means for controlling the reservation based on the determination result by the determination means;
A recording control apparatus comprising: A recording control method for controlling a recording apparatus that records information upon receiving power from a battery,
When reservation information including information indicating the start and end times of recording and information specifying a recording target is input by the user, the remaining amount of the battery is obtained.
Predicting the amount of power required to perform recording based on the reservation information;
Based on the remaining amount of the battery and the predicted power amount, it is determined whether or not recording based on the reservation information can be executed,
A recording control method, wherein reservation is controlled based on a determination result.

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