WO2007072711A1

WO2007072711A1 - Data updating device and update control method

Info

Publication number: WO2007072711A1
Application number: PCT/JP2006/324762
Authority: WO
Inventors: Ryuichi Yamada; Tomohisa Tsukui; Naoto Imasaka; Yuuki Kusumoto; Osamu Takagi
Original assignee: Pioneer Corporation
Priority date: 2005-12-19
Filing date: 2006-12-12
Publication date: 2007-06-28
Also published as: JPWO2007072711A1; JP4524314B2

Abstract

A data updating device (100) is provided with a control section (103) for updating data stored in a storage device (104) mounted on a mobile body. In the data updating device, an acquiring section (101) acquires mobile body information relating to the status of the mobile body. Based on the mobile body information, an estimating section (102) estimates whether a power supply required for data updating processing by the storage device (104) turns off or not while the data updating processing is being executed. When the estimation result shows that the power supply is to be turned off while the data updating processing is being executed, the data updating processing is executed up to a prescribed updating status, and the data updating processing is interrupted. Then, when the power supply does not turn off within a previously set stand-by time, the interrupted data updating processing is restarted.

Description

Data update device and update control method

Technical field

The present invention relates to a data update device that updates data, an update control method, an update control program, and a computer-readable recording medium.

Background art

[0002] Conventionally, a navigation device program mounted on a moving body such as a vehicle or update of map data has been updated by using a DVD-ROM (Digital Versatile Disk Read Only Memory) DVD- The data is updated by inserting it into a navigation device equipped with a ROM drive and writing the data to a recording medium such as HD (Hard Disk).

[0003] Also, when the data is updated and the capacity of the update data is large, if all the data is updated at once, the processing takes time, and the time during which the navigation device cannot be used becomes longer. For this reason, there is a method in which the update data is divided into predetermined units and the data is updated for each unit as necessary. This method minimizes the time during which the navigation function cannot be used without affecting the operation speed of the navigation function (for example, see Patent Document 1 below).

[0004] Patent Document 1: Japanese Patent Application Laid-Open No. 2004-295207

Disclosure of the invention

Problems to be solved by the invention

[0005] However, according to the above-described prior art, when the data update process is executed, the engine of the moving body stops, and the navigation device is turned off before the end of the data update unit. One example is the problem that the update unit must be updated from the beginning. In addition, if the navigation device is turned off during the data update process, the storage medium such as HD may be damaged when the engine is restarted during post-processing to end the update process. An example is the problem that occurs.

Means for solving the problem [0006] In order to solve the above-described problems and achieve the object, a data update device according to the invention of claim 1 includes a control means for updating data stored in a storage device mounted on a mobile body. A data updating device, wherein acquisition means for acquiring moving body information relating to the state of the moving body, and a power source necessary for data updating processing of the storage device based on the moving body information execute the data updating process. Estimation means for estimating whether or not the power supply is turned off, and the control means has a predetermined value when the estimation means estimates that the power supply is turned off during the execution of the data update process. The data update process is executed until the update state, and the data update process is interrupted by force.

[0007] The update control method according to the invention of claim 4 is an update control method in a data update device for updating data stored in a storage device mounted on a mobile body, wherein the state of the mobile body And acquiring whether or not the power required for the data update process of the storage device is turned off during the execution of the data update process based on the acquisition process of acquiring the mobile object information regarding the mobile object information An estimation step, a control step for executing the data update processing until a predetermined update state when the power supply is estimated to be turned off during the data update processing by the estimation step, and a predetermined step by the control step. And an interruption step of interrupting the data update process after the data update process is executed up to the update state.

[0008] Further, an update control program according to the invention of claim 5 causes a computer to execute the update control method according to claim 4.

[0009] Further, a computer-readable recording medium according to the invention of claim 6 records the update control program according to claim 5.

Brief Description of Drawings

[0010] FIG. 1 is a block diagram showing an example of a functional configuration of a data updating apparatus according to the present embodiment.

[FIG. 2] FIG. 2 is a flowchart showing a procedure of data update processing by the data update apparatus according to the present embodiment.

FIG. 3 is a block diagram showing an example of a hardware configuration of a navigation device that works well with the present embodiment. [FIG. 4] FIG. 4 is a flowchart showing the contents of the processing of the navigation device which is effective in this embodiment.

Explanation of symbols

[0011] 100 data update device

101 Acquisition Department

102 Estimator

103 Control unit

104 Storage device

BEST MODE FOR CARRYING OUT THE INVENTION

Exemplary embodiments of a data update device, an update control method, an update control program, and a computer-readable recording medium according to the present invention will be described below in detail with reference to the accompanying drawings.

[0013] (Embodiment)

(Functional configuration of data update device)

With reference to FIG. 1, the functional configuration of the data updating apparatus that works on this embodiment will be described. FIG. 1 is a block diagram showing an example of a functional configuration of a data updating apparatus according to the present embodiment. In FIG. 1, the data update device 100 includes an acquisition unit 101, an estimation unit 102, a control unit 103, and a storage device 104.

[0014] The acquisition unit 101 acquires moving body information related to the state of the moving body. The moving body information is, for example, information on the gear state of the moving body, the parking brake state of the moving body, the map matching state of the moving body, or the position of the moving body.

[0015] Based on the moving object information acquired by the acquiring unit 101, the estimating unit 102 turns OFF during the execution of the power supply data update process necessary for the data updating process of the storage device 104 mounted on the moving object. It is estimated whether it becomes. For example, when the moving body information acquired by the acquiring unit 101 is information on stoppage of the moving body, the estimation regarding the power OFF is estimated to be the power supply SOFF. More specifically, it is estimated that the moving body stops when the parking brake of the moving body is pulled or when the moving body is located around a specific point such as home, destination point or stop-off point. be able to. The control unit 103 controls the data update process based on the estimation result obtained by the estimation unit 102. More specifically, when the estimation unit 102 estimates that the power is turned off during the execution of the data update process, the data update process is executed to a predetermined update state and the force data update process is interrupted. . The predetermined update state is, for example, a state in which update processing of a divided file in which update data is divided for each data type is completed. After that, if the power does not turn off within the predetermined waiting time, the interrupted data update process is resumed.

The storage device 104 is mounted on a moving body, and stores various data and programs. More specifically, it is data necessary for searching for a route of a moving body and guiding the moving body based on the search.

[0018] (Contents of processing of data update device 100)

Next, the contents of the processing of the data updating apparatus 100 that is useful for the present embodiment will be described with reference to FIG. FIG. 2 is a flowchart showing a procedure of data update processing by the data update apparatus according to the present embodiment. In the flowchart of FIG. 2, first, the data update device 100 determines whether or not it has received a request to start a data update process (step S201). The data update start request may be made, for example, by a user operating an operation unit (not shown).

In step S201, the process waits for a data update process start request from the user (step S201: No loop). When the data update process start request is received (step S201: Yes), the acquisition unit 101 acquires mobile body information related to the state of the mobile body (step S202).

[0020] Subsequently, based on the moving body information acquired in step S202, the estimation unit 102 determines whether or not the power source necessary for the data update process of the storage device 104 becomes OF F during the execution of the data update process. Is estimated (step S203).

Next, the control unit 103 controls the data update process based on the estimation result in step S203 (step S204), and ends the series of processes. More specifically, if it is estimated that the power will be turned off during the execution of the estimated result force data update process in step S203, the data update process is executed after the data update process is executed up to a predetermined update state. I refuse. After that, if the power does not turn off within the predetermined waiting time, the interrupted data update process is resumed.

[0022] As described above, according to the present embodiment, it is estimated that the power necessary for the data update process is turned off during the execution of the data update process of the storage device mounted on the mobile body. Therefore, it is possible to prevent the data update process from being invalidated by turning off the power during the data update process. In addition, it is possible to prevent the storage device from being damaged by turning off the power during the data update process.

Example

[0023] (Hardware configuration of navigation device)

With reference to FIG. 3, the hardware configuration of the navigation apparatus that is useful in this embodiment will be described. FIG. 3 is a block diagram showing an example of a hardware configuration of a navigation apparatus that works on the present embodiment.

In FIG. 3, a navigation device 300 is mounted on a moving body such as a vehicle, and includes a navigation control unit 301, a user operation unit 302, a display unit 303, a position acquisition unit 304, and a first unit. Recording medium 305a, second recording medium 305b, first recording medium decoding unit 306a, second recording medium decoding unit 306b, audio output unit 307, communication unit 308, route search unit 309, route guidance unit 310, an audio generation unit 311, a speaker 312, and a detection unit 313.

[0025] The navigation control unit 301 controls the entire navigation device 300. The navigation control unit 301 includes, for example, a CPU (Central Processing Unit) that executes predetermined arithmetic processing, a ROM (Read Only Memory) that stores various control programs, and a RAM (Random) that functions as a work area for the CPU. It can be realized by a microcomputer constituted by an access memory.

[0026] The navigation control unit 301 provides information on the current position acquired by the position acquisition unit 304 and map information obtained from the first recording medium 305a via the first recording medium decoding unit 306a when the route is guided. Based on the above, it calculates which position on the map the vehicle is traveling on and outputs the calculation result to the display unit 303.

[0027] Then, the navigation control unit 301 performs route guidance, the route search unit 309, route guidance. Information on route guidance is input / output between the guidance unit 310 and the voice generation unit 311, and information obtained as a result is output to the display unit 303 and the voice output unit 307.

[0028] Further, the navigation control unit 301 controls an update process of the program and map information of the navigation device 300 recorded in the first recording medium 305a. Specifically, the position acquisition unit 304, the route guidance unit 310, and the detection unit 313 are controlled to estimate whether the ACC (Accesory) power supply of the vehicle is turned off during the execution of the update process. If it is estimated that the vehicle ACC power will not be turned off during the update process, the update process is continued. On the other hand, if it is estimated that the ACC power of the vehicle is turned off during the update process, the update process is interrupted after the update process is executed to a predetermined update state. The predetermined update state is, for example, a state in which the update process of the divided file in which the update data is divided for each data type is completed. After that, if the ACC power of the vehicle does not turn off within the predetermined waiting time, the interrupted data update process may be resumed.

The user operation unit 302 acquires information input by the user by operating operation means such as a remote control, a switch, and a touch panel, and outputs the acquired information to the navigation control unit 301.

[0030] Display unit 303 includes, for example, a CRT (Cathode Ray Tube), a TFT liquid crystal display, an organic EL display, a plasma display, and the like. Specifically, the display unit 303 can be configured by, for example, a video IZF (interface) or a video display device connected to the video IZF. Specifically, the video IZF is, for example, a graphic controller that controls the entire display device, a buffer memory such as VRAM (Video RAM) that temporarily stores image information that can be displayed immediately, and a graphics controller. It is composed of a control IC that controls the display of the display device based on the image information output from the device. The display unit 303 displays traffic information, map information, information on route guidance, content about video output from the navigation control unit 301, and other various types of information.

[0031] The position acquisition unit 304 includes a GPS receiver and various sensor forces, and acquires information on the current position of the vehicle (current position of the navigation device 300). The GPS receiver receives radio waves from the power of the GPS satellite and determines the geometric position with the GPS satellite. GPS is an abbreviation for Global Positioning Svstem. It receives radio waves from four or more satellites. This is a system that accurately determines the position on the ground. The GPS receiver consists of an antenna for receiving radio waves of GPS satellite power, a tuner that demodulates the received radio waves, and an arithmetic circuit that calculates the current position based on the demodulated information.

[0032] The various sensors are various sensors mounted on the vehicle or the navigation device 300, such as a vehicle speed sensor, an angular velocity sensor, and an acceleration sensor. From the information output from these sensors, the displacement of the vehicle, the moving speed, Find the direction of travel. In this way, the position of the vehicle can be recognized with higher accuracy by using the output information of the various sensors together with the information obtained from the received radio wave power of the GPS receiver.

[0033] Various control programs and various information are recorded on the first recording medium 305a and the second recording medium 305b so as to be readable by the computer. The first recording medium 305a and the second recording medium 305b can be realized by, for example, an HD (Hard Disk), a DVD (Digital Versatile Disk), a CD (Compact Disk), or a memory card. The first recording medium 305a and the second recording medium 305b accept writing of information by the first recording medium decoding unit 306a and the second recording medium decoding unit 306b, and record the written information in a nonvolatile manner. Even so, よう.

In the present embodiment, the first recording medium 305a is realized by HD, and map information used for route search and route guidance is recorded on the first recording medium 305a. The map information recorded in the first recording medium 305a includes background data representing features (features) such as buildings, rivers, and the ground surface, and road shape data representing the shape of the road. It is drawn in 2D or 3D on the 303 display screen. When the navigation device 300 is guiding a route, the map information read from the first recording medium 305a by the first recording medium decoding unit 306a and the mark indicating the vehicle position acquired by the position acquisition unit 304 are displayed. Part 303 is displayed.

[0035] In the present embodiment, the second recording medium 305b is realized by a DVD, and the second recording medium 305b is used to update various programs and various information recorded on the first recording medium 305a. The update data is recorded. The second recording medium 305b is The second recording medium decoding unit 306b is detachable.

[0036] The update data is composed of separate files according to the data type, for example! This may be used as a unit of renewal. More specifically, if the update data is map information, the contents of the file consist of header information and multiple regional data. The header information includes, for example, a data type, a data version, a file size, and the number of data. The data type is a data type corresponding to each function of the navigation device 300, for example, for map display, for route search, for route guidance.

[0037] In the present embodiment, the update data is recorded on the second recording medium 305b. However, the present invention is not limited to this. The update data may be recorded in a server external to the navigation device 300. In this case, the navigation device 300 acquires update data from Sano via the network, for example, via a communication unit 308 described later. The acquired information is written to the second recording medium 305b. Note that the second recording medium 305b holds the written information in a nonvolatile manner.

[0038] The first recording medium decoding unit 306a controls the reading of information Z on the first recording medium 305a. Similarly, the second recording medium decoding unit 306b controls reading and writing of information with respect to the second recording medium 306b.

[0039] The audio output unit 307 reproduces a sound such as an internal sound by controlling an output to the connected speaker 312. There may be one speaker 312 or a plurality of speakers 312. The audio output unit 307 can be configured by, for example, a D ZA converter that performs DZA conversion of audio digital information, an amplifier that amplifies an audio analog signal output from the DZA converter, and the like.

[0040] The communication unit 308 obtains various types of information from the outside. For example, the communication unit 308 is an FM multiplex tuner, a VICS (registered trademark) Z beacon receiver, a wireless communication device and other communication devices, and other communication via a communication medium such as a mobile phone, PHS, communication card and wireless LAN. Communicate with the device. Alternatively, it may be a device that can communicate by radio waves or television broadcasts or satellite broadcasts.

[0041] The information acquired by the communication unit 308 includes the power of the road traffic information communication system center. This includes traffic information such as traffic jams and traffic regulations that are received, traffic information acquired by businesses in their own way, and other public data and content on the Internet. For example, the communication unit 308 may request traffic information from a server that accumulates traffic information, etc., nationwide via a network, and obtain the requested information. Also, it may be configured to receive video or audio signals from radio waves, radio waves such as TV broadcasts, and satellite broadcasts.

[0042] The route search unit 309 uses the map information acquired from the first recording medium 305a via the first recording medium decoding unit 306a, the traffic information acquired via the communication unit 308, etc. The optimum route from the point to the destination point is searched. Here, the optimum route is the route that best matches the user's request.

[0043] As the departure point of the route searched by the route search unit 309, a current position acquired by the position acquisition unit 304 or a departure point designated by the user from the user operation unit 302 is set. As the destination, the destination specified by the user or the facility searched for map data by genre search is set as the destination.

[0044] The route guidance unit 310 includes the optimum route information searched by the route search unit 309, the position information of the moving body acquired by the position acquisition unit 304, and the first recording medium 305a through the first recording medium decoding unit 306a. Based on the map information obtained in this way, the route guidance information for guiding the user to the destination point is generated. The route guidance information generated at this time may be information that considers the traffic jam information received by the communication unit 308. The route guidance information generated by the route guidance unit 310 is output to the display unit 303 via the navigation control unit 301.

[0045] The route guidance unit 310 obtains various data acquired by various sensors constituting the position acquisition unit 304 and the first recording medium 305a via the first recording medium decoding unit 306a during the route guidance. Based on the obtained map information, the position on the map where the vehicle is driving is calculated. At this time, various types of data acquired by the position acquisition unit 304 are corrected, and map matching is performed to correct the position of the vehicle so as to travel on the road of the map. Especially in places where there is a height difference, use the vehicle inclination information for accuracy, map matching, and so on. [0046] The sound generation unit 311 generates information of various sounds such as a guide sound. That is, based on the route guidance information generated by the route guidance unit 310, the virtual sound source corresponding to the guidance point is set and the voice guidance information is generated, and this is output as voice via the navigation control unit 301. Output to part 307.

[0047] The detection unit 313 detects signals from the parking brake line and the back line of the vehicle, and ONZOFF of the ACC power supply of the vehicle. More specifically, the position of the vehicle gear and the state of the vehicle key are detected. The position of the vehicle gear detects, for example, whether the vehicle gear is in a position such as D (Drive), P (Parking), or R (Reverse). In addition, the key status of the vehicle detects, for example, whether the key status of the vehicle is LOCK, ACC, ON, etc.!

[0048] Note that the acquisition unit 101, which is a functional configuration of the data update device 100 according to the embodiment, is provided by the position acquisition unit 304 and the detection unit 313, and the estimation unit 102 and the control unit 103 are provided by the navigation control unit 301. The storage device 104 realizes its functions by the first recording medium 305a and the first recording medium decoding unit 306a.

[0049] (Contents of processing of navigation device 300)

Next, the contents of the processing of the navigation device 300 that is useful in the present embodiment will be described with reference to FIG. FIG. 4 is a flow chart showing the contents of the processing of the navigation device that works on the present embodiment. In the flowchart of FIG. 4, the navigation device 300 that is effective in this embodiment disables the update process when the ACC power of the vehicle is turned off during the update process of the data recorded in the first recording medium 305a. Therefore, it is estimated whether the ACC power is turned off during the update process. If it is estimated that the ACC power supply is turned off during the update process, the update process is interrupted after the update process is executed to the specified state. After that, it is determined whether or not the ACC power can be turned off within the predetermined standby time. If the ACC power does not turn off, the interrupted update process is resumed.

In the flowchart of FIG. 4, first, the navigation apparatus 300 determines whether or not an update process start request has been received from the user (step S401). This update process start request is, for example, a second recording medium on which update data is recorded by the user. It may be performed by attaching 305b to the second recording medium decoding unit 306b. Alternatively, the user may operate the user operation unit 302 to make a request for starting update processing.

[0051] In step S401, an update processing start request from the user is awaited (step S401: No loop). When an update processing start request is received (step S401: Yes), the navigation control unit 301 acquires update data from the second recording medium 305b via the second recording medium decoding unit 306b ( Step S402). If it is difficult to acquire update data at one time due to the large amount of update data, update data may be acquired in multiple steps.

[0052] Subsequently, when the read update data is written and updated in the first recording medium 305a mounted on the navigation device 300, the vehicle is updated during execution of the update process in steps S403 to S407 described later. Estimate whether or not the ACC power is off. First, the detection unit 313 determines whether or not the force of detecting the signal of the parking brake line force of the vehicle (step S403). If a signal from the parking brake line of the vehicle is detected (step S403: Yes), the user may park at that location and stop the vehicle engine. Estimated to be OFF. Here, instead of detecting the signal from the parking brake line of the vehicle, it is detected whether or not the gear of the vehicle has entered P (parking). It may be estimated that the power is turned off.

[0053] If a signal from the parking brake line of the vehicle is not detected in step S403 (step S403: No), the detection unit 313 determines whether a signal from the back line of the vehicle has been detected ( Step S404). In step S404, if a signal from the back line of the vehicle is detected (step S404: Yes), the user may park after stopping the vehicle and stop the vehicle engine. It is estimated that the ACC power will be turned off. Here, instead of detecting a signal from the back line of the vehicle, it is detected whether or not the gear of the vehicle has entered R (reverse). It may be estimated that is turned off.

[0054] In step S404, if the signal from the back line of the vehicle is not detected (step S4 In 04: No), the position acquisition unit 304 determines whether or not the vehicle is not in map matching (step S405). In step S405, if the vehicle is not in map matching (step S405: Yes), the user may park in the parking lot and stop the engine of the vehicle because the road power is off. It is estimated that the ACC power is turned off during execution.

[0055] In step S405, if the vehicle is map-matched! /, (Step S4 05: No), the position acquisition unit 304 determines whether the vehicle is located around the specific point. It is determined whether or not (step S406). A specific point is a home, a destination point, or a stop point. In step S406, if the vehicle is located around the specific point (step S406: Yes), the user may stop the vehicle at the specific point and stop the vehicle engine. It is estimated that the ACC power will be turned off. For example, if the vehicle is located around a specific location, it is estimated that the vehicle will stop after the arrival at the specific location and the ACC power will be turned off.

[0056] In step S406, if the vehicle is located around the specific point! /, (Step S4 06: No), the position acquisition unit 304 causes the vehicle to be PA (parking area) or It is determined whether or not it is located in the SA (service area) (step S407). In step S407, if the vehicle is located at PA or SA (step S407: Yes), the update process is possible because the user may stop the vehicle for a break and stop the vehicle engine. It is estimated that the ACC power is turned off during execution.

[0057] In step S407! /, If the vehicle is located in PA or SA! / ヽ! (Step S4 07: No), the navigation control unit 301 causes the first recording medium decoding unit 306a to To update the data of the first recording medium 305a (step S408). This data update is performed for each file divided for each data type, rather than updating all data at once. If the file for each data type is larger than the predetermined size, the file is divided into data of a predetermined size and written to the recording medium 305a. Update processing may be performed by returning to the file. In this case, in order to cope with the interruption of the update process, it is not possible to indicate how much divided data has been written to the predetermined area of the first recording medium 305a. Record and manage in a large memory.

Next, in the first recording medium decoding unit 306a, it is determined whether or not all the update processes that have also read the second recording medium 305b force have been completed (step S409). All update processing refers to update processing for all divided files. In step S409, when all the update processes are completed (step S409: Yes), the series of processes is terminated as it is. If all the update processes have not been completed in step S409 (step S409: No), the process returns to step S402 until the process is repeated.

[0059] Note that the above steps S403 to S407 may be performed in a different order as long as at least one is performed. In step S403 to step S407, if it is estimated that the ACC power supply is turned off during the execution of the update process (step S403 to step S407: Yes), the update process is executed until a predetermined update state is reached (step S4 10 ). The predetermined update status is, for example, a state in which update processing of a divided file in which update data is divided for each data type is completed, or one divided data when a file for each data type is divided into a predetermined size This is a state in which the update process of is completed. When the predetermined update state is reached, the update process is interrupted (step S411).

[0060] Thereafter, it is determined whether or not the ACC power is turned off within a predetermined waiting time (step S412). The user may set the waiting time that has been determined in advance. In addition, for each state of step S403 to step S407, the time from when the vehicle stops until it starts running again may be set as the waiting time. More specifically, for example, when a vehicle pulls the parking brake and waits for a signal on a slope with a signal, the time from when the signal changes to when the vehicle starts to move is set as the standby time. . In this case, you may be able to cancel the data update interruption process by user input.

In step S412, when the ACC power supply is turned off (step S412: Yes), the series of processing is terminated as it is. On the other hand, if the ACC power supply does not become OF F in step S412 (step S412: No), the process returns to step S403 to repeat the process.

[0062] As described above, according to the present embodiment, it is estimated that the ACC power is turned off during execution of the data update process of the navigation device mounted on the vehicle, and the data update is performed until a predetermined update state. Processing can be interrupted after execution. Therefore, the ACC power is O Even in the case of FF, it is possible to improve the efficiency of the update process without having to perform the update process first. In addition, it is possible to prevent the power supply from being turned off during the data update process and damaging the recording medium that is updating the data.

The update control method described in the present embodiment can be realized by executing a prepared program on a computer such as a personal computer or a workstation. This program is recorded on a computer-readable recording medium such as a hard disk, a flexible disk, a CD-ROM, an MO, and a DVD, and is executed when the recording medium force is also read by the computer. The program may be a transmission medium that can be distributed through a network such as the Internet.

Claims

The scope of the claims

[1] A data updating device comprising a control means for updating data stored in a storage device mounted on a mobile body,

Acquisition means for acquiring mobile body information relating to the state of the mobile body;

An estimation means for estimating whether the power required for the data update process of the storage device is turned off during the execution of the data update process based on the mobile object information, and

The control means executes the data update process until a predetermined update state and interrupts the data update process when the estimation means estimates that the power supply is turned off during the execution of the data update process. A data update device characterized by the above.

2. The data updating apparatus according to claim 1, wherein the acquisition unit acquires at least one of information related to operation of the moving object and information related to the position of the moving object.

[3] The control means restarts the interrupted data update process if the power is not turned off within a predetermined waiting time after interrupting the data update process. Or the data update device described in 2.

[4] An update control method in a data update device for updating data stored in a storage device mounted on a mobile body,

An acquisition step of acquiring moving body information relating to the state of the moving body;

Based on the mobile object information, an estimation step for estimating whether or not a power source required for data update processing of the storage device is OFF during execution of the data update processing; and Is controlled to be OFF during the execution of the data update process, a control step for executing the data update process to a predetermined update state, and after the data update process is executed to the predetermined update state by the control step An interruption process to interrupt the data update process,

An update control method characterized by comprising:

[5] An update control program that causes a computer to execute the update control method according to claim 4. 6. A recordable recording medium in which the update control program according to claim 5 is recorded.