JP2014109790A - Information processing device, method, and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem that a prediction value is used as a threshold for comparison with free capacity in software update of an information processing device and when an increment in data size due to the update is large, redundant software update for changing the prediction value to a measured value is needed.SOLUTION: An information processing device acquires update data for updating software from a server. The update data includes information representing an increment in data size increasing in a storage area for user data of the information processing device in execution of update. A creator or the like of the update date executes update and measures the increment in the data size so as to obtain the increment. The information processing device uses the increment included in the update data as a threshold for comparison with the free capacity of the storage area to determine whether the software can be updated, and executes the update using the update data according to a determination result.

Description

  The present invention relates to an information processing apparatus capable of updating software, and more particularly to a technique for improving the efficiency of processing at the time of updating.

  In recent years, information processing apparatuses such as smartphones and tablet terminals have become widespread, and these information processing apparatuses can acquire various applications through a network. The information processing apparatus can connect to a server through a network to update software such as an OS (Operating system) and applications, and can download update data from the server. The information processing apparatus can add functions by updating the OS or the like.

  When the information processing apparatus updates software such as an OS, the size of data stored in the information processing apparatus may increase due to the update. If the free space in the storage area of the information processing apparatus is not sufficient when updating the software, the information processing apparatus may fail to update and may not start normally. Therefore, when updating, it is necessary to determine whether or not the free space in the storage area of the information processing apparatus is sufficient for executing the update process. For example, International Publication No. 2006/137147 (Patent Document 1) receives management information including size information of target data that the mobile phone device desires to download, and based on the size information of target data included in the management information. A technique for determining whether the size of the target data exceeds a predetermined value is disclosed. According to the technique described in Patent Document 1, the temporary storage area used by the mobile phone device for storing history is not used for storing large-capacity content data. Number is guaranteed.

International Publication No. 2006/137147

  When updating the software, the information processing apparatus compares the free space in the storage area with a predetermined threshold value to determine whether the free space is sufficient for the software update. The predetermined threshold is a fixed value embedded in a program for executing software update processing, for example. This fixed value is, for example, a value estimated by the developer of the information processing apparatus or the like in the product development stage, etc., with the amount of data that increases as software is updated.

  When the amount of data that actually increases in the storage area of the information processing apparatus at the time of update exceeds the predetermined threshold value, there is a possibility that a storage area sufficient for execution of the update is not secured in the information processing apparatus. In this case, when the information processing apparatus updates the software, it is necessary to execute another update program for changing the predetermined threshold value at least once. To be complicated.

  SUMMARY An advantage of some aspects of the invention is that it provides a technique for improving processing efficiency when updating software of an information processing apparatus.

  An information processing apparatus according to an embodiment is an information processing apparatus capable of updating software through communication with a server, and includes a storage unit for storing software and data, and an update unit for updating software to be updated A control unit that acquires data from the server and controls update processing of the information processing apparatus, and the update data indicates an increase amount indicating an increase in data size that is increased in the storage unit by updating the stored software And the control unit compares the increase amount information included in the acquired update data with the free space of the storage area in the storage unit, thereby updating the software to be updated by applying the update data Including a determination unit that determines whether or not the update of the software is possible. To perform an update of A.

  According to another embodiment, an update method in an information processing apparatus capable of updating software through communication with a server is provided. The information processing apparatus includes a storage unit for storing software and data. The method includes a step in which an information processing apparatus acquires update data for updating software to be updated from a server and controls an update process of the information processing apparatus, and the update data updates stored software In the method, the information processing apparatus includes an increase amount information indicating an increase amount of the data size that increases in the storage unit, and the information processing apparatus includes the increase amount information included in the acquired update data and the storage area in the storage unit. A step of determining whether or not the update target software can be updated by applying the update data by comparing with the free space and a step of executing the software update according to the determination result are included.

  According to another embodiment, a program for controlling update processing in an information processing apparatus capable of updating software through communication with a server is provided. The information processing apparatus includes a processor and a memory. The program causes the processor to acquire update data for updating the update target software from the server and execute a step of controlling the update process, and the update data is updated by updating the software stored in the memory. The increase amount information indicating the increase amount of the data size increasing in the memory is included, and the program compares the increase amount information included in the acquired update data with the free capacity of the storage area in the memory. Thus, the step of determining whether or not the update target software can be updated by applying the update data and the step of updating the software according to the determination result are executed.

  According to the one embodiment, it is possible to improve the efficiency of processing when updating software of the information processing apparatus.

  The above and other objects, features, aspects and advantages of the present invention will become apparent from the following detailed description of the present invention taken in conjunction with the accompanying drawings.

It is a figure which shows the outline of the whole structure of the network containing the information processing apparatus of embodiment. 2 is a functional block diagram illustrating a configuration of an information processing apparatus 100. FIG. 3 is a functional block diagram showing a configuration of an update data management server 800. FIG. 6 is a diagram showing a configuration of update data 88. FIG. 10 is a flowchart illustrating processing in which the information processing apparatus 100 and the update data management server 800 transmit and receive data for update of the information processing apparatus 100. It is a flowchart which shows the process which the information processing apparatus 100 installs update data. It is a flowchart which shows the process in which the update data management server 800 delivers update data.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, the same parts are denoted by the same reference numerals. Their names and functions are also the same. Therefore, detailed description thereof will not be repeated.

<Outline of Network Configuration of Embodiment 1>
FIG. 1 is a diagram illustrating an outline of an overall configuration of a network including an information processing apparatus according to an embodiment. As shown in FIG. 1, this network includes an information processing apparatus 100A, an information processing apparatus 100B, a wireless router 200, a wireless base station 300, an update data generation apparatus 600, a network 700, and an update data management server 800. Including. The information processing apparatus 100A and the information processing apparatus 100B (hereinafter, the plurality of information processing apparatuses may be collectively referred to as “information processing apparatus 100”) include a CPU (Central Processing Unit), a ROM (Read Only Memory), A RAM (Random Access Memory), a display, a communication interface, and the like are provided and operate according to a program. For example, the information processing apparatus 100A is a tablet terminal, and the information processing apparatus 100B is a smartphone.

  As shown in FIG. 1, the information processing apparatus 100 is connected to the Internet through a wireless router 200, a wireless base station 300, and the like, communicates with the update data management server 800 through a network 700, and receives applications from the update data management server 800. Can be downloaded. Further, the information processing apparatus 100 can update the OS and applications by downloading and installing data (update data) for updating the OS (Operating System), applications, and the like from the update data management server 800. . For example, the information processing apparatus 100 automatically acquires update data such as an OS in accordance with user settings.

  The update data management server 800 functions as a distribution server that distributes data for updating the OS or the like of the information processing apparatus 100. The update data management server 800 manages the database system, and holds update data for each model of the information processing apparatus 100. The update data management server 800 accepts access from the information processing apparatus 100, authenticates the information processing apparatus 100, and transmits OS and application update data to the authenticated information processing apparatus 100. The update data management server 800 receives an update data transmission request for updating the OS and application from the information processing apparatus 100 and transmits the update data to the information processing apparatus 100. Based on the data size increase information transmitted from the update data management server 800, the information processing apparatus 100 compares the update data with the free space in the storage area of the information processing apparatus 100, and updates according to the comparison result. Whether or not execution is possible is determined. The update data management server 800 may be composed of a plurality of servers.

<Configuration of Functions of Information Processing Device 100>
The configuration of the information processing apparatus 100 will be described with reference to FIG. FIG. 2 is a functional block diagram illustrating the configuration of the information processing apparatus 100. As shown in FIG. 2, the information processing apparatus 100 includes a first antenna 11A, a second antenna 11B, a first radio frequency (RF) unit 12A, a second radio RF unit 12B, a storage unit 13, A display unit 14, an operation unit 15, an audio output unit 16, and a control unit 17 are included. The control unit 17 includes a communication processing unit 31, a threshold setting unit 32, and a determination processing unit 33. Further, the control unit 17 reads programs such as the update data download manager 34 and the update data installation program 35 from the storage unit 13 and the like, and operates according to the read programs.

  The information processing apparatus 100 supports a plurality of communication methods, and includes a wireless RF unit, an antenna, and the like corresponding to each communication method. FIG. 2 illustrates an example including two wireless RF units.

  The first antenna 11A and the second antenna 11B radiate signals transmitted from the information processing apparatus 100 as radio waves. The first antenna 11A receives radio waves from the space and outputs a received signal to the first radio RF unit 12A. The second antenna 11B receives radio waves from the space and outputs a received signal to the second wireless RF unit 12B.

  The first wireless RF unit 12A and the second wireless RF unit 12B are communication modules including an antenna, a high-frequency circuit, and the like, and perform modulation / demodulation and frequency conversion of a wireless communication signal transmitted and received by the information processing apparatus 100. Examples of the communication method include short-range wireless communication standards such as Bluetooth (registered trademark), wireless LAN (Local Area Network) standards such as IEEE 802.11, and the like. The wireless RF unit corresponds to a communication system in a mobile communication system such as LTE (Long Term Evolution) and UMTS (Universal Mobile Telecommunications System).

  The storage unit 13 is configured by a flash memory or the like, and is a storage area for storing data used by the information processing apparatus 100 such as applications and telephone directory data. The storage unit 13 stores product type information 21, version information 22, and the like. The product type information 21 includes information for specifying the model of the information processing apparatus 100, and is, for example, the model name of the information processing apparatus 100. The version information 22 indicates the version of the OS, application, etc. operating in the information processing apparatus 100. The information processing apparatus 100 transmits the product type information 21 and the version information 22 to the update data management server 800. The update data management server 800 specifies the update data corresponding to the information processing apparatus 100 by receiving the product type information 21 and the version information 22.

  The update data download manager 34 is a program for managing a process in which the information processing apparatus 100 communicates with the update data management server 800 to download update data corresponding to the own apparatus. By executing the update data download manager 34, the information processing apparatus 100 transmits, for example, the product type information 21 and the version information 22 to the update data management server 800 to check whether there is update data, update data In order to receive update data from the management server 800, processing for establishing a communication connection with the update data management server 800, processing for receiving update data from the update data management server 800, and the like are performed.

  The update data installation program 35 is a program for controlling processing for installing update data downloaded from the update data management server 800 by the information processing apparatus 100 into the information processing apparatus 100. By executing the update data installation program 35, the information processing apparatus 100 starts, for example, processing for determining whether or not the free space of the user data area necessary for update is secured, and installation of update data. Therefore, the process of restarting the information processing apparatus 100, the process of starting the minimum program necessary for the update after the restart of the information processing apparatus 100, and installing the update data in the information processing apparatus 100, and the success or failure of the update In response to this, a process of displaying a message on the display unit 14 is performed.

  The display unit 14 is a display for displaying icons and background images on the menu screen, and displaying still images, moving images, and the like by application operations. Further, the display unit 14 displays information such as the update progress status and the success or failure of the update in a state where the information processing apparatus 100 is updating the software. The display unit 14 is realized by, for example, an LCD (Liquid Crystal Display) or an organic EL (electroluminescence) display.

  The operation unit 15 is an operation member for receiving a user's operation, and is a touch panel that receives a user's contact operation by, for example, a capacitance method.

  The audio output unit 16 is a member for outputting audio, and is a speaker or the like. The audio output unit 16 performs audio output or the like according to the success or failure of the update process of the information processing apparatus 100 under the control of the control unit 17.

  The control unit 17 is configured by a CPU or the like, and operates according to a program, thereby functioning as the communication processing unit 31, the threshold setting unit 32, and the determination processing unit 33 to control the operation of the information processing apparatus 100. The communication processing unit 31 controls communication processing with an external communication device by the information processing apparatus 100. For example, in the information processing apparatus 100, the control unit 17 executes the update data download manager 34 to exhibit the function as the communication processing unit 31 and receives the OS update data from the update data management server 800. I do.

  The information processing apparatus 100 exhibits the functions of the threshold setting unit 32 and the determination processing unit 33 by executing the update data installation program 35. Based on the update data received by the information processing apparatus 100, the threshold setting unit 32 has a free space in a storage area (user data area) sufficient for the information processing apparatus 100 to install the update data. A threshold for use in determining whether or not there is is set. Based on the update data received by the information processing apparatus 100, the determination processing unit 33 determines whether or not there is sufficient free space in the storage area for installing the update data. In some cases, the OS or application is updated. Details of the processing for installing these update data will be described later.

<Configuration of Update Data Management Server 800>
The configuration of the update data management server 800 will be described with reference to FIG. FIG. 3 is a functional block diagram showing the configuration of the update data management server 800. As illustrated in FIG. 3, the update data management server 800 includes a communication interface unit 81, a storage unit 82, and a control unit 83. The update data management server 800 receives an update data transmission request from the information processing apparatus 100 and transmits update data corresponding to the information processing apparatus 100 to the information processing apparatus 100.

  The communication interface unit 81 is an interface for the update data management server 800 to communicate with other devices by connecting to the network 700.

  The storage unit 82 is configured by an HDD (Hard disk drive) or the like, and includes a large-capacity storage area. The storage unit 82 stores update data version management information 87 and update data 88. The update data version management information 87 is information for managing the correspondence relationship between the model of the information processing apparatus 100 and the update data, and the version of the update data. The update data 88 is data for updating the information processing apparatus 100.

  The control unit 83 is configured by a CPU or the like, and operates according to a program, thereby functioning as the update data storage processing unit 91 and the update data distribution management unit 92 to control the operation of the update data management server 800.

  The update data storage processing unit 91 accepts uploading of update data from a user such as a business operator who creates update data for the information processing apparatus 100 by operating the update data generation apparatus 600. The update data storage processing unit 91 authenticates a user who uploads update data, and stores the data in the HDD or the like according to the authentication result. Further, the update data storage processing unit 91 receives and updates information such as the model name of the information processing apparatus 100 corresponding to the update data and the version of the update data from the user who uploads the update data. Data version management information 87 is updated.

  The update data distribution management unit 92 manages processing for transmitting update data for updating the OS or the like of the information processing apparatus 100 to the information processing apparatus 100. The update data distribution management unit 92 receives the product type information 21 and the version information 22 of the information processing apparatus 100 transmitted from the information processing apparatus 100, and receives a request for transmission of update data from the information processing apparatus 100. Then, an authentication process of the information processing apparatus 100, a process of transmitting update data corresponding to the model of the information processing apparatus 100, and the like are performed.

<Data>
Next, the configuration of update data for updating the program of the information processing apparatus 100 in the present embodiment will be described. FIG. 4 is a diagram showing the configuration of the update data 88. As shown in FIG. As shown in FIG. 4, the update data 88 includes an update data main body 41 and update data meta information 42 (user data size increase amount information).

  The amount of data that increases in the storage area of the information processing apparatus 100 when the information processing apparatus 100 installs update data includes the configuration of the update data file and the pre-update data stored in the information processing apparatus 100 Depends on the version etc. The update data management server 800 receives product type information 21 and version information 22 transmitted from the information processing apparatus 100. The amount of increase in the data amount indicated in the update data meta-information 42 is obtained, for example, when the update data provider or developer tries the update in advance. A data provider or developer who uploads data for update uploads update data 88 composed of the update data main body 41 and the update data meta information 42 to the update data management server 800.

<Operation>
Next, operations of the information processing apparatus 100 and the update data management server 800 will be described with reference to FIGS. FIG. 5 is a flowchart illustrating a process in which the information processing apparatus 100 and the update data management server 800 transmit / receive data for update of the information processing apparatus 100.

  The operation of the information processing apparatus 100 and the update data management server 800 will be described. In step S11, the information processing apparatus 100 receives an operation for starting software update such as an OS or an application from the user by the operation unit 15.

  In step S13, the information processing apparatus 100 reads and executes the update data download manager 34 in response to accepting an operation for starting software update from the user. The communication processing unit 31 performs processing for connecting the information processing apparatus 100 to the update data management server 800 and performs processing for receiving authentication of the information processing apparatus 100 by the update data management server 800. The communication processing unit 31 reads the product type information 21 and the version information 22 from the storage unit 13, and transmits the read product type information 21 and version information 22 to the update data management server 800.

  In step S81, the update data management server 800 performs communication connection with the information processing apparatus 100 to authenticate the information processing apparatus 100, and based on the product type information 21 and the version information 22 received from the information processing apparatus 100, information is updated. It is determined whether there is update data for updating the software of the processing apparatus 100. When the update data management server 800 determines that there is update data, the update data management server 800 transmits update data to the information processing apparatus 100. When it is determined that there is no update data, the update data management server 800 indicates that there is no update data. The message data is transmitted to the information processing apparatus 100. Details will be described later.

  In step S <b> 15, the communication processing unit 31 downloads the update data 88 from the update data management server 800 and stores it in the memory of the information processing apparatus 100. Note that the update data 88 may be stored in an external storage medium (such as a memory card) attached to the information processing apparatus 100.

  In step S <b> 17, the information processing apparatus 100 reads out and executes the update data installation program 35 from the storage unit 13, thereby performing processing for installing the update data 88 downloaded from the update data management server 800 into the information processing apparatus 100. Run. Details will be described later.

<Update Data Installation Process in Information Processing Apparatus 100>
FIG. 6 is a flowchart illustrating a process in which the information processing apparatus 100 installs update data. The series of processing shown in FIG. 6 corresponds to the processing in step S17 in FIG. The information processing apparatus 100 reads out and executes the update data installation program 35 from the storage unit 13, thereby exhibiting the functions of the threshold setting unit 32 and the determination processing unit 33.

  In step S21, the threshold setting unit 32 extracts the update data meta information 42 included in the update data 88 downloaded in step S15.

  In step S23, the threshold setting unit 32 sets the increase amount of the data size indicated in the update data meta information 42 extracted in step S21 as a threshold. This threshold value is used to compare with the free space of the user data area when the information processing apparatus 100 installs the update data body 41 included in the update data 88 in the information processing apparatus 100.

  In step S25, the determination processing unit 33 compares the free capacity of the user data area in the storage area with the threshold set in step S23, and determines whether the free capacity of the user data area is equal to or greater than the threshold. If the free space in the user data area is equal to or greater than the threshold (YES in step S25), control unit 17 executes the process of step S27. If the free space in the user data area is smaller than the threshold value (NO in step S25), control unit 17 executes the process of step S29.

  In step S27 (in the case of YES in step S25), the control unit 17 installs update data using the update data body 41 included in the update data 88 downloaded in step S15.

  In step S29 (in the case of NO in step S25), the control unit 17 performs a process for notifying the user that the free space in the user data area is insufficient for installing the update data. Do. For example, the control unit 17 displays a message indicating that the free space of the user data area is insufficient on the display unit 14, and outputs a voice indicating an error by the voice output unit 16.

  In step S31, the control unit 17 calculates the difference between the free space of the user data area and the threshold value, and displays the calculation result on the display unit 14 as the free space of the insufficient user data area. It is determined whether or not an operation for increasing the free space in the data area is performed.

  When the information processing apparatus 100 accepts an operation for increasing the free space in the user data area, for example, when the user accepts an operation for deleting data within a certain time, the control unit 17 performs the process of step S25. If the information processing apparatus 100 is not operated to increase the free space in the user data area within a certain time (step S31: NO), the information processing apparatus 100 ends the process of installing update data.

<Update Data Distribution Processing in Update Data Management Server 800>
FIG. 7 is a flowchart showing processing in which the update data management server 800 distributes update data. The process shown in FIG. 7 corresponds to the process in step S81 in FIG.

  In step S85, the update data distribution management unit 92 of the update data management server 800 receives the product type information 21 and the version information 22 from the information processing apparatus 100.

  In step S87, the update data distribution management unit 92 identifies the latest update data provided to the information processing apparatus 100 based on the product type information 21 received from the information processing apparatus 100, and refers to the version of the update data. . The update data management server 800 compares the version of the update data with the version information 22 of the information processing apparatus 100 to determine whether there is data to be updated.

  In step S89, if there is data to be updated as a result of the process in step S87 (YES in step S89), the update data distribution management unit 92 executes the process in step S91. If there is no data to be updated (NO in step S89), the update data distribution management unit 92 executes the process of step S93.

  In step S <b> 91, the update data distribution management unit 92 transmits update data 88 provided to the information processing apparatus 100 to the information processing apparatus 100.

  In step S93 (NO in step S89), the update data distribution management unit 92 transmits message data indicating that there is no data to be updated to the information processing apparatus 100.

(Summary)
As described in the first embodiment, the amount of increase in the data size of user data required when the OS is upgraded or when a newly added application program starts operating for the first time is actually information. This is determined by trying update in the processing apparatus 100. The update data management server 800 includes the increase amount of the data size of the user data determined by this trial as the update data meta information 42 in the update data 88 transmitted by the update data management server 800. The information processing apparatus 100 refers to the update data meta information 42 included in the update data 88, sets a threshold for comparison with the free space of the user data area, and before starting the software update process, the user data The free space in the area is compared with a threshold value. The information processing apparatus 100 starts the software update process when the free space in the user data area is larger than the threshold, and does not execute the software update process when the free space in the user data area is smaller than the threshold.

  If the above-described means of the first embodiment is not taken, it may be necessary to update software twice or more. Software update more than once means (first update) a fixed threshold for comparison with the free space in the user data area is a value estimated during product development, and this fixed threshold is determined by trial A software update for changing to the updated value, and a (second update) update of software such as the OS of the information processing apparatus 100. On the other hand, according to the first embodiment, the software update process for changing the threshold value (first update) can be omitted. Further, it is possible to update the software of the information processing apparatus 100 without causing a shortage of free space in the user data area in one software update.

<Others>
The information processing apparatus of the present invention is realized by a CPU and a program executed on the CPU. The program for realizing the present invention can be stored in a computer-readable recording medium, such as a semiconductor memory, a hard disk, a CD-ROM, a DVD, or the like, provided by being recorded on these recording media, or a communication interface. It is provided by transmission / reception using a network.

  The embodiment disclosed this time must be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

  11A 1st antenna, 11B 2nd antenna, 12A 1st wireless RF section, 12B 2nd wireless RF section, 13 storage section, 14 display section, 15 operation section, 16 audio output section, 17 control section, 21 product type information, 22 version information, 31 communication processing unit, 32 threshold setting unit, 33 determination processing unit, 34 update data download manager, 35 update data installation program, 81 communication interface unit, 82 storage unit, 83 control unit, 87 update data version management information , 88 update data, 91 update data storage processing unit, 92 update data distribution management unit, 100 information processing device, 200 wireless router, 300 wireless base station, 600 update data generation device, 700 network, 800 update data management server.

Claims (6)

An information processing apparatus capable of updating software through communication with a server,
A storage unit for storing software and data;
A control unit that acquires update data for updating software to be updated from the server and controls the update process of the information processing apparatus;
The update data includes an increase amount information indicating an increase amount of a data size that increases in the storage unit by updating the stored software,
The controller is
Whether or not the update target software can be updated by applying the update data by comparing the increase amount information included in the acquired update data with the free space of the storage area in the storage unit. Including a determination unit for determining,
Updating the software according to a determination result by the determination unit;
Information processing device. The update data is
An update data body and meta information of the update data body,
The increase amount information is included in the meta information, and indicates an increase amount of data size that is increased by updating the software by the update data body,
The control unit includes a threshold setting unit that extracts the increase amount information from the meta information included in the update data and sets it as a threshold.
The determination unit determines whether or not the software can be updated by comparing the set threshold value and the free space of the storage area.
The information processing apparatus according to claim 1. The increase amount shown in the increase amount information is a value based on the data increase amount obtained by actual measurement by executing software update with the update data.
The information processing apparatus according to claim 1 or 2. The control unit, when the increase amount of the data size indicated in the increase amount information exceeds the free space of the storage area in the storage unit, based on the difference between the increase amount and the free space, the update process Displaying the free space of the storage area that is insufficient for execution of the operation, and accepting an operation for increasing the free space,
The information processing apparatus according to any one of claims 1 to 3. An update method in an information processing apparatus capable of updating software through communication with a server, wherein the information processing apparatus includes a storage unit for storing software and data,
The method
The information processing apparatus includes the step of acquiring update data for updating software to be updated from the server and controlling the update processing of the information processing apparatus,
The update data includes an increase amount information indicating an increase amount of a data size that increases in the storage unit by updating the stored software,
The method
The information processing apparatus compares the increase amount information included in the acquired update data with the free space of the storage area in the storage unit, thereby applying the update data to the update target. Determining whether the software can be updated;
Updating the software according to the determination result,
Method. A program for controlling update processing in an information processing apparatus capable of updating software through communication with a server, wherein the information processing apparatus includes a processor and a memory,
The program is stored in the processor.
Obtaining update data for updating the software to be updated from the server and executing the step of controlling the update process;
The update data includes increase amount information indicating an increase amount of data size that increases in the memory by updating software stored in the memory,
The program is stored in the processor.
By comparing the increase amount information included in the acquired update data with the free space of the storage area in the memory, it is determined whether or not the update target software can be updated by applying the update data. And steps to
Updating the software according to the determination result,
program.

Images