JP2014123920A - Communication terminal and video recording reservation management method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mobile communication terminal that suppresses power consumption by stopping a reserved video recording function when disaster occurs with a simple configuration.SOLUTION: A mobile communication terminal (A) of the present invention, when acquiring information indicating the start of disaster as disaster information, deletes reservation information (11a) from a reservation information storage unit (11) of a video recording reservation management unit (1).

Description

  The present invention relates to a communication terminal that uses a secondary battery as a power source and has a reserved recording function for a broadcast program.

  In general, in a communication terminal such as a smartphone that uses a secondary battery as a power source and has a reserved recording function for a broadcast program, the capacity of the secondary battery is limited, and thus it is necessary to reduce power consumption. Patent Document 1 discloses a technique for reducing the power consumed by the reserved recording function.

JP 2005-117402 A (published April 28, 2005)

  Usually, if the capacity of the secondary battery of the communication terminal decreases, charging may be performed. However, if it is difficult to perform charging during a disaster or the like, it is necessary to reduce power consumption as much as possible in order to make the operation time of the communication terminal as long as possible.

  However, in the technique disclosed in Patent Document 1, since the recording device operates only during the broadcast frame of the program for which scheduled recording is performed, the device only saves power. In a situation where it is difficult to charge the battery, the scheduled recording function operates at a timing not intended by the user, and there is a possibility that useless power is consumed.

  The present invention has been made in view of the above problems, and its purpose is to eliminate power consumption due to the recording function working at a timing not intended by the user in a state where it is difficult to charge the secondary battery. An object of the present invention is to provide a communication terminal capable of making the operation time as long as possible.

  In order to solve the above problems, a communication terminal according to one aspect of the present invention is a communication terminal that uses a secondary battery as a power source and has a scheduled recording function for a broadcast program, and reserves the reserved recording function. A recording control unit to be executed according to the information, a recording reservation management unit that stores the reservation information and provides the stored reservation information to the recording control unit, and a disaster information acquisition unit that acquires disaster information The recording reservation management unit is characterized by canceling stored reservation information when the disaster information acquired by the disaster information acquisition unit is information indicating the occurrence of a disaster.

  In order to solve the above problems, a recording reservation management method according to one aspect of the present invention uses a secondary battery as a power source, and in a communication terminal that executes a reserved recording function of a broadcast program according to reservation information. The recording reservation management method is characterized in that when the disaster information indicating the occurrence of a disaster is acquired, the execution of the reservation recording function is stopped.

  According to one aspect of the present invention, when information indicating the occurrence of a disaster is acquired by the recording reservation management unit, the reservation information that is managed is canceled, so that the recording control unit responds to the reservation information. Will not be able to be executed. That is, in a situation where it is difficult to charge the secondary battery, such as when a disaster occurs, the scheduled recording function does not work at a timing not intended by the user. Therefore, it is possible to suppress power consumption caused by the scheduled recording function being activated at a timing not intended by the user, and to increase the operation time of the communication terminal.

It is a schematic block diagram of the mobile communication terminal according to Embodiment 1 of the present invention. It is a figure which shows the example of a screen of a display part in the portable communication terminal shown in FIG. It is a flowchart which shows the flow which detects the disaster start in the portable communication terminal shown in FIG. It is a flowchart which shows the flow which performs a reservation video recording in the portable communication terminal shown in FIG. It is a flowchart which shows the flow which performs manual reservation return in the portable communication terminal shown in FIG. It is a flowchart which shows the flow which makes reservation return automatically at the time of the disaster end detection in the portable communication terminal shown in FIG. It is a schematic block diagram of the portable communication terminal which concerns on the modification of this invention.

Embodiment 1
An embodiment of the present invention will be described as follows. In this embodiment, a portable communication terminal (for example, a smartphone) provided with a one-segment broadcast receiver is assumed as a communication terminal that uses a secondary battery as the power source of the present invention and has a reservation recording function for a broadcast program. To do.

<Configuration of mobile communication terminal A>
FIG. 1 is a schematic configuration block diagram of mobile communication terminal A according to the present embodiment. The mobile communication terminal A is a communication terminal that receives a broadcast program by the one-segment broadcast wave receiving unit 2, and includes a recording reservation management unit 1, a wireless communication unit (disaster information acquisition unit) 3, a display unit 4, an input unit 5, A recording control unit 6, an internal memory 7, and an external memory 8 are provided. Here, in this invention, an earthquake, a tsunami, a typhoon, a large-scale fire, etc. are assumed and assumed as a disaster.

  The recording reservation management unit 1 manages the reservation information of the broadcast program, and stores the reservation information 11a for causing the recording control unit 6 to execute the reservation recording function. And a cancellation information storage unit 12 for storing the reservation information 11a canceled from the reservation information storage unit 11 as cancellation information. The recorded image reservation management unit functions as a reservation information return unit that recovers the canceled reservation information 11a.

  The one seg broadcast wave receiving unit 2 includes a one seg tuner 21 for receiving a one seg broadcast as a broadcast program, and a decoder 22 for decoding the one seg broadcast received by the one seg tuner 21. The decoded data is displayed on the display unit 4 as an image reception video.

  The radio communication unit 3 is a disaster information acquisition unit, which can receive area mail (CBS (Cell Broadcast Service)), ETWS (Earthquake and Tsunami Warning System), or normal mail reception (3G communication). From the mail receiving unit 31 for acquiring information from outside including disaster information indicating the start of disaster (disaster occurrence) or the end of disaster (disaster end) as a mail, and the mail received by the mail receiving unit 31 And a disaster start / end detection unit 32 that detects an email including disaster information indicating the disaster start and the disaster end. When the disaster start / end detection unit 32 detects an email including disaster information indicating the disaster start and the disaster end, the disaster reservation / management unit 1 is notified of the disaster start or the disaster end. The acquisition of disaster information is not limited to a method using wireless communication by the wireless communication unit 3, and wired communication (a fixed telephone network, the Internet, etc.) may be used.

  In addition to displaying one-segment broadcasting and mail, the display unit 4 functions as a user interface by configuring the display screen 4a of the display unit 4 with a touch panel as shown in FIG. The input unit 5 is a unit that accepts an operation such as a recording reservation by the user. In the present embodiment, the input unit 5 is a target for performing an operation on the display screen 4a. For example, a pen. The input means 5 may be a physical input key such as a keyboard.

  The recording control unit 6 executes the reserved recording function for the broadcast program received by the one-segment broadcast wave receiving unit 2 according to the reservation information managed by the recording reservation management unit 1, and stores the storage unit (internal memory 7, external The broadcast program is recorded in the memory 8 or the like. The internal memory 7 is composed of, for example, a flash memory built in the mobile communication terminal A. The external memory 8 is a memory that can be attached to and detached from the mobile communication terminal A, such as an SD memory card.

  The process executed by the mobile communication terminal A configured as described above is roughly divided into four processes. 3 includes a flow at the time of disaster start detection shown in FIG. 3, a reservation recording execution flow shown in FIG. 4, a manual reservation return flow shown in FIG. 5, and a reservation return flow due to disaster end detection shown in FIG.

  By performing the above four flows, it is possible to cancel the reservation information 11a reserved for recording at the time of detecting the start of the disaster, and further notify the user of the cancellation. In addition, by storing the cancellation in the cancellation information storage unit 12, the user can manually restore the reservation information, or the reservation information 11a can be automatically restored after the disaster ends. The above four flows will be described below.

<Flow at the time of disaster detection>
The flow of canceling a recording reservation when a disaster start is detected will be described below with reference to the flowchart of FIG.

  First, the mail receiver 31 receives a mail and sends it to the disaster start / end detector 32 (S31). Next, the disaster start / end detection unit 32 determines whether the mail received by the mail receiving unit 31 corresponds to the disaster start mail, and detects the disaster start (S32). If the disaster does not start, the process returns to S31. When the disaster starts, the wireless communication unit 3 notifies the recording reservation management unit 1 of the disaster start (S33).

  Next, in accordance with the disaster start detection information acquired from the wireless communication unit 3, the recording reservation management unit 1 deletes the reservation information 11a from the reservation information storage unit 11 and cancels the recording reservation (S34). At the same time, the recording reservation management unit 1 stores the reservation information 11a deleted from the reservation information storage unit 11 as cancellation information in the cancellation information storage unit 12 (S35). Here, the cancellation information stored in the cancellation information storage unit 12 can be stored again in the reservation information storage unit 11 as the reservation information 11a as necessary. Then, the recording reservation management unit 1 requests the display unit 4 to display a cancellation result (S36).

  Finally, the display unit 4 displays on the display screen 4a that the recording reservation has been canceled, and ends the process (S37). Note that FIG. 2A is an example of a screen that displays on the display screen 4 a of the display unit 4 that the recording reservation has been canceled. The user sees this display and recognizes that the recording reservation has been canceled.

<Schedule recording execution flow>
The flow of executing the scheduled recording will be described below with reference to the flowchart of FIG.

  First, the recording reservation management unit 1 detects the reservation start time from the reservation information 11a (S41). Next, the recording reservation management unit 1 determines whether or not the detected reservation start time corresponds to the reservation start time included in the reservation information 11 a stored in the cancel information storage unit 12. (S42). Here, when the detected reservation start time corresponds to the reservation start time included in the reservation information 11a, the recording reservation management unit 1 does not send the reservation information 11a to the recording control unit 6, so that the recording control unit 6 performs recording. Without starting (S46), the execution of the recording reservation is terminated.

  If the detected reservation start time does not correspond to the reservation start time included in the reservation information 11a in S42, the recording reservation management unit 1 sends the reservation information 11a to the recording control unit 6 and makes a recording request (S43). Then, the recording control unit 6 activates the one seg broadcast wave receiving unit 2 in accordance with the reservation information 11a, receives the one seg broadcast wave, records the broadcast program (S44), and finishes the recording reservation.

<Manual reservation return flow>
The flow of executing manual reservation return for manually changing a broadcast program for which recording reservation has been canceled to a reserved state will be described below with reference to the flowchart of FIG.

  First, the recording reservation management unit 1 accepts an instruction to return recording reservation from the user (S51). Next, in response to the recording reservation return instruction, the recording reservation management unit 1 inquires whether the reservation information 11a exists in the cancel information storage unit 12 in order to confirm the canceled recording reservation (S52). Here, when the reservation information 11a does not exist, a message indicating that there is no canceled reservation information is displayed on the display unit 1, and the process is terminated.

  On the other hand, when the reservation information 11a exists in S52, the recording reservation management unit 1 displays the reservation information 11a stored in the cancel storage information unit 11a on the display screen 4a as the canceled recording reservation (S53). In this case, the display screen 4a of the display unit 4 displays a screen as shown in FIG. 2C or FIG. Then, the display unit 4 receives the reservation information 11a selected by the user from the display screen 4a shown in FIG. 2C or FIG. 2D (S54). This reception is performed when the user touches the return button or the return selection button displayed on the display screen 4a of FIG. 2C or FIG.

  Next, the display unit 4 notifies the recording reservation management unit 1 of the selected reservation information 11a received in S54 (S55). Finally, the recording reservation management unit 1 returns the selected reservation information 11a from the cancel information storage unit 12 to the reservation information storage unit 11, and returns from the state where the recording reservation is canceled to the state where the recording reservation is made. Then, the process ends (S56).

<Reservation return flow after disaster end>
The flow of automatically returning the reservation information 11a from the state in which the recording reservation is canceled to the state in which the recording reservation has been made at the end of the disaster will be described below with reference to the flowchart of FIG.

  First, the mail receiving unit 31 receives a mail (S61). Next, the disaster start / end detection unit 32 determines whether or not the mail acquired from the mail receiving unit 31 is a mail containing information indicating the end of the disaster, and detects the end of the disaster (S62). When the end of the disaster is detected in S62, the wireless communication unit 3 notifies the recording reservation management unit 1 of the end of the disaster (S63).

  The recording reservation management unit 1 receives the disaster end notification from the wireless communication unit 3 and checks whether the reservation information 11a exists in the cancellation information storage unit 12 in order to confirm the canceled recording reservation. Determine (S64). If the canceled reservation information 11a does not exist as a result of the determination, the display unit 4 displays that the canceled reservation information 11a does not exist, and the process ends. On the other hand, when the reservation information 11a canceled in S64 exists, the recording reservation management unit 1 returns the canceled reservation information 11a from the state where the recording reservation is canceled to the state where the recording reservation is made (cancellation information storage unit 12 The reservation information 11a stored in the process is returned to the reservation information storage unit 11), and the process ends (S65).

  Further, when there is a canceled recording reservation at the end of the disaster, a screen for prompting the return of the recording reservation may be displayed. FIG. 2E is an example of a screen that prompts the user to return the canceled recording reservation at the end of the disaster. FIG. 2B shows a list of reservation information stored in the reservation information storage unit 11 before the disaster start reception.

  Although the best mode for carrying out the present invention has been described in the present embodiment, the processing may be simplified as in the following second and third embodiments.

[Embodiment 2]
Another embodiment of the present invention will be described as follows. In the present embodiment, a mobile communication terminal that executes without executing the function of returning the canceled reservation information described in the first embodiment will be described.

  In the present embodiment, the block configuration of the mobile communication terminal is the same as that of the first embodiment, but as described above, the function of returning the canceled reservation information is omitted. Therefore, the process of manually returning the reservation information 11a in the recording cancellation state of the first embodiment and automatically returning the reservation information 11a in the recording cancellation state at the end of the disaster is not executed. Therefore, in the present embodiment, only the process shown in FIG. 3 of the first embodiment is executed.

  By adopting the configuration as described above, the process of returning the canceled reservation information can be omitted. Therefore, the number of processes executed in the mobile communication terminal is reduced when compared with the first embodiment. The power consumption of the terminal can be reduced.

[Embodiment 3]
Another embodiment of the present invention will be described as follows. In the present embodiment, a mobile communication terminal that executes without omitting the function of notifying the user that the reservation information described in the first embodiment has been canceled and the function of returning the canceled reservation information will be described.

  The mobile communication terminal according to the present embodiment has a configuration in which the cancel information storage unit 12 of the recording reservation management unit 1 shown in FIG. In the present embodiment, a process in which S35 and subsequent steps in the flowchart shown in FIG. 3 in the first embodiment are omitted is executed.

  By using the configuration as described above, the process of notifying the user that the reservation information has been canceled, the process of returning the canceled reservation information, etc. can be omitted. Since the processing executed in the mobile communication terminal is reduced, the power consumption of the mobile communication terminal can be greatly reduced.

[Modification]
In the first to third embodiments, the description has been made on the premise of the one-segment broadcasting wave, but the present invention is not limited to this, and can be applied to the recording reservation of a broadcast program in mobile broadcasting instead of the one-segment broadcasting. May be. Note that a mobile communication terminal compatible with mobile broadcasting has either or both of a function of directly recording broadcast waves reserved for recording and a function of recording to store broadcast waves reserved for storage.

  FIG. 7 is a schematic block diagram of a mobile communication terminal B corresponding to mobile broadcasting, which has both a function of directly recording broadcast waves reserved for recording and a function of recording to store broadcast waves reserved for storage. It is. The mobile communication terminal B shown in FIG. 7 replaces the mobile recording terminal management unit 1 of the mobile communication terminal A shown in FIG. 1 with the mobile broadcast reservation management unit 101 and the mobile communication terminal A instead of the one-segment broadcasting wave image receiving unit 2 of the mobile communication terminal A. A broadcast wave image receiving unit 102, a wireless communication unit 103 instead of the wireless communication unit 3, a display unit 104 instead of the display unit 4, and an input unit 105 instead of the input unit 5 are provided.

  The mobile broadcast reservation management unit 101 includes a mobile broadcast recording reservation management unit 111 that manages recording reservation information 111a, and a mobile broadcast storage reservation management unit 112 that manages storage reservation information 112a. The mobile broadcast recording reservation management unit 111 includes a mobile broadcast recording reservation information management unit 1111 that stores the recording reservation information 111a and a mobile broadcast recording cancellation information storage unit 1112 that stores the canceled recording reservation information 111a. . The mobile broadcast storage reservation management unit 112 includes a mobile broadcast storage reservation information management unit 1121 that stores the storage reservation information 112a, and a mobile broadcast storage cancellation information storage unit 1122 that stores the canceled storage reservation information 112a. .

  The mobile broadcast recording reservation information management unit 111 and the mobile broadcast storage reservation management unit 112 function in the same manner as the recording reservation management unit 1 of the first embodiment. That is, the reservation information 11a of the one-segment broadcasting is merely replaced with the recording reservation information 111a when directly recording the mobile broadcast and the accumulation reservation information 112a when accumulating and recording the mobile broadcast. The return processing or the like is not different between the mobile broadcast recording reservation information management unit 111, the mobile broadcast storage reservation management unit 112, and the recording reservation management unit 1 of the first embodiment.

  The mobile broadcast wave receiver 102 includes a mobile broadcast tuner 121 and a decoder 122. Further, the wireless communication unit 103 includes a mail reception unit 131 and a disaster start / end detection unit 132. The wireless communication unit 103, the display unit 104, and the input unit 105 in the mobile communication terminal B configured as described above are the same as the wireless communication unit 3, the display unit 4, and the input unit 5 of the mobile communication terminal A of the first embodiment. is there.

  As described above, when the present invention is adapted to mobile broadcast waves, it is possible to cancel not only recording reservation but also storage reservation at the time of disaster.

  Specifically, the mobile communication terminal B configured as described above has a wireless communication unit 3 that is a disaster information receiving unit that acquires disaster information, mobile broadcast recording reservation information 111a that executes a reserved recording function, and an accumulation reservation function. By including a recording reservation management unit (recording reservation management unit 1) for managing the mobile broadcast storage reservation information 112a to be executed, the mobile broadcast recording reservation information management unit 111 and the mobile broadcast storage reservation management unit 112 receive disaster information. When the department acquires the disaster information, it can delete the recording reservation information and / or storage reservation information that it manages, so it has a simple configuration and has the reservation recording function and / or storage reservation function at the start of the disaster. By stopping the mobile communication terminal, power consumption can be reduced.

[Example of software implementation]
The recording reservation management unit 1 and the mobile broadcast reservation management unit 101 of the mobile communication terminals A and B may be realized by a logic circuit (hardware) formed in an integrated circuit (IC chip) or the like, or a CPU (Central Processing) Unit) and may be realized by software.

  In the latter case, the recording reservation management unit 1 and the mobile broadcast reservation management unit 101 of the mobile communication terminals A and B include a CPU that executes instructions of a program that is software that implements each function, A ROM (Read Only Memory) or a storage device (these are referred to as “recording media”) recorded so as to be readable by a CPU), a RAM (Random Access Memory) for expanding the program, and the like are provided. And the objective of this invention is achieved when a computer (or CPU) reads the said program from the said recording medium and runs it. As the recording medium, a “non-temporary tangible medium” such as a tape, a disk, a card, a semiconductor memory, a programmable logic circuit, or the like can be used. The program may be supplied to the computer via an arbitrary transmission medium (such as a communication network or a broadcast wave) that can transmit the program. The present invention can also be realized in the form of a data signal embedded in a carrier wave in which the program is embodied by electronic transmission.

[Summary]
The mobile communication terminal A according to the first aspect of the present invention stores a recording control unit 6 that executes a reservation recording function according to reservation information, the reservation information 11a, and stores the stored reservation information 11a as the recording control unit. 6 and a disaster information acquisition unit (wireless communication unit 3) for acquiring disaster information. The recording reservation management unit 1 includes the disaster information acquisition unit (wireless communication unit 3). When the acquired disaster information is information indicating the occurrence of a disaster, the stored reservation information is canceled.

  According to the above configuration, when the recording reservation management unit acquires information indicating the occurrence of a disaster, the recording control unit executes the reserved recording function according to the reservation information by canceling the managed reservation information. It will not be possible. That is, in a situation where it is difficult to charge the secondary battery, such as when a disaster occurs, the scheduled recording function does not work at a timing not intended by the user. Therefore, it is possible to suppress power consumption caused by the scheduled recording function being activated at a timing not intended by the user, and to increase the operating time of the mobile communication terminal A.

  The mobile communication terminal A according to aspect 2 of the present invention includes the reservation information storage unit 11 that stores the reservation information 11a provided to the recording control unit 6 by the recording reservation management unit 1 according to aspect 1 of the present invention, When the disaster information acquired by the disaster information acquisition unit (wireless communication unit 3) is information indicating the occurrence of a disaster, the reservation information stored in the reservation information storage unit is deleted.

  According to said structure, cancellation of reservation information can be implement | achieved by the simple structure which only deletes reservation information, and it can prevent the reservation recording function by the video recording control part 6 being performed.

  The mobile communication terminal A according to aspect 3 of the present invention includes a reservation information storage unit 11 that stores reservation information 11a provided by the recording reservation management unit 1 to the recording control unit 6 in the aspect 1 or 2 of the present invention. When the disaster information acquired by the disaster information acquisition unit (wireless communication unit 3) is information indicating the occurrence of a disaster, the cancellation information storage stores the reservation information 11a stored in the reservation information storage unit 11 as cancellation information And a portion 12.

  According to the above configuration, the reservation information 11a is not deleted and is stored as cancellation information in another cancellation information storage unit 12, so that the reservation information 11a is extracted from the cancellation information storage unit 12 and provided to the recording control unit 6 Then, the canceled recording reservation can be restored.

  A mobile communication terminal A according to aspect 4 of the present invention is the reservation information return unit (recording control unit) for returning reservation information canceled by the recording image reservation management unit 1 according to any one of aspects 1 to 3 of the present invention. 6). According to said structure, the reservation information once canceled can be returned. For example, the following aspects can be considered.

  The mobile communication terminal A according to aspect 5 of the present invention includes operation means (display unit 4 and input means 5) for accepting a user's instruction to return recording reservation in aspect 4 of the present invention. In the state where the reservation information 11a is canceled, when the user's instruction for returning the recording reservation is received by the operation means (display unit 4, input means 5), the reservation information stored as cancellation information in the cancellation information storage unit 12 11 a is stored in the reservation information storage unit 11.

  According to said structure, the cancellation | release of the canceled reservation information is realizable by a user instruction | indication.

  In the mobile communication terminal A according to aspect 6 of the present invention, in the aspect 4 of the present invention, the disaster information acquisition unit (wireless communication unit 3) acquires the recording reservation management unit 1 while the reservation information 11a is canceled. When the disaster information is information indicating the end of the disaster, the reservation information 11 a stored as cancellation information in the cancellation information storage unit 12 is stored in the reservation information storage unit 11.

  According to the above configuration, when the disaster ends, the canceled recording reservation is automatically restored without the user being aware of it.

  The mobile communication terminal A according to aspect 7 of the present invention provides a notification means (notifying means) that notifies the user that the recording reservation management unit 1 has canceled the reservation information 11a in any one of aspects 1 to 6 of the present invention. It is characterized by having a display unit 4).

  According to the above configuration, the user can know that the recording reservation has been canceled when a disaster occurs. In addition to the display unit 4, the notification means may be notification by sound.

  The recording reservation management method according to aspect 8 of the present invention is a recording reservation management method in the mobile communication terminal A that uses a secondary battery as a power source and executes a reserved recording function of a broadcast program, and includes a disaster start as disaster information. When the information indicating is acquired, the execution of the reserved recording function is stopped.

  According to the above configuration, when information indicating disaster start is acquired as disaster information, power consumption caused by the scheduled recording function being activated at a timing not intended by the user by stopping execution of the scheduled recording function. The operating time of the mobile communication terminal A can be lengthened.

  The mobile communication terminal A according to each aspect of the present invention may be realized by a computer. In this case, the mobile terminal device A is made to be a computer by causing the computer to operate as each means included in the mobile communication terminal A. The recording reservation management control program realized and the computer-readable recording medium recording the recording reservation management control program also fall within the scope of the present invention.

  The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope shown in the claims, and embodiments obtained by appropriately combining technical means disclosed in different embodiments. Is also included in the technical scope of the present invention. Furthermore, a new technical feature can be formed by combining the technical means disclosed in each embodiment.

  INDUSTRIAL APPLICABILITY The present invention can be suitably used in a communication terminal using a secondary battery as a power source and having a broadcast program reservation recording function, particularly a mobile communication terminal such as a smartphone.

1 Recording reservation management unit 2 One-segment broadcasting wave reception unit 3 Wireless communication unit (disaster information acquisition unit)
4 Display (operating means)
5 Input means (operation means)
6 Recording control unit 11 Cancel information storage unit 11a Reservation information 32 Disaster start / end detection unit A Mobile communication terminal (communication terminal)

Claims (5)

A communication terminal that uses a secondary battery as a power source and has a reservation recording function for a broadcast program,
A recording control unit for executing the reservation recording function according to the reservation information;
A recording reservation management unit that stores the reservation information and provides the stored reservation information to the recording control unit;
A disaster information acquisition unit that acquires disaster information,
The recording reservation manager
When the disaster information acquired by the disaster information acquisition unit is information indicating the occurrence of a disaster, the stored reservation information is canceled. The recording reservation manager
A reservation information storage unit for storing reservation information to be provided to the recording control unit;
The communication terminal according to claim 1, wherein when the disaster information acquired by the disaster information acquisition unit is information indicating the occurrence of a disaster, the reservation information stored in the reservation information storage unit is deleted. The recording reservation manager
A reservation information storage unit for storing reservation information to be provided to the recording control unit;
When the disaster information acquired by the disaster information acquisition unit is information indicating the occurrence of a disaster, the cancel information storage unit stores the reservation information stored in the reservation information storage unit as cancellation information. The communication terminal according to claim 1 or 2.   The communication terminal according to claim 1, wherein the recorded image reservation management unit restores the canceled reservation information. A recording reservation management method in a communication terminal that uses a secondary battery as a power source and executes a reservation recording function of a broadcast program according to reservation information,
A recording reservation management method, wherein execution of the reservation recording function is stopped when disaster information indicating the occurrence of a disaster is acquired.

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