JP4825513B2 - TERMINAL DEVICE HAVING ELECTRONIC MAP FUNCTION, METHOD FOR CREATING HISTORY OF ELECTRONIC MAP, PROGRAM, AND RECORDING MEDIUM CONTAINING PROGRAM - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce the number of logs recorded as history after surely recording high priority logs, and enhance convenience when a user tries to restore past processing states. <P>SOLUTION: A portable terminal includes a portable electronic hazard map executing program 41 for reading out and displaying an electronic map according to user's operations. Every time the internal state of the portable electronic hazard map executing program 41 changes according to the user's operation, information to indicate the internal state after the change of the state, variation weight and time-interval weight of the internal state is respectively written on a state log table 321, and lapse time weight is written on the state log table 321 according to the calling operation of a history calling program 422. Then, on the basis of each weight, scores are calculated and compared with a threshold value. The log information whose score exceeds the threshold value is extracted as an object to be stored, and is stored in a history table 322 together with its naming information. <P>COPYRIGHT: (C)2007,JPO&amp;INPIT

Description

  The present invention relates to a terminal device having an electronic map function, such as a personal computer, a portable terminal, and a car navigation device, a method for creating an electronic map history, a program, and a recording medium on which the program is recorded.

  In recent years, a lot of software has a function of recording a log of an internal state in a time series in an execution environment and managing it as a history regardless of the type. This kind of history management function is very convenient because it can easily return to any past processing state if there is a branch in the process or if an incorrect process is performed ( (See Non-Patent Document 1.)

"CORE PHOTO-PAINT9 User Guide" pp. 52-54

  However, in general, the history management function simply records a log of the internal processing state in chronological order. For this reason, since logs that are not necessary for the user are recorded as history, the history holds many unnecessary logs. In addition, the history function generally has a function of sequentially reading logs in time series when reproducing past processing states. Therefore, when many unnecessary logs are recorded as history, the user has to repeat many operations until the processing state of the past reproduction target is read out, which has a heavy operational burden on the user. .

  For example, in software that implements an electronic map function, the user can re-display a previously displayed map page or partial map, an operation to display a route connecting the displayed partial maps, or a specific point. It is very useful to have a history function because it is often used to browse various attached information and items such as facilities, stores, and parks.

  However, on the other hand, the browsing operation of a map or the like often repeats simple operations such as scrolling, and each operation has little semantic importance. For this reason, the value as history can only be inferred from the temporal relationship of the operation and the displayed map data. Further, depending on the execution environment of the electronic map software, the processing load on the central processing unit (CPU) necessary for the history management process may be a heavy burden due to the resource relationship.

  In particular, when the electronic map software is provided in a portable terminal such as a cellular phone or a PDA (Personal Digital Assistant) as an electronic hazard map for a disaster, for example, the following problem occurs. That is, the display size of the display unit of the portable terminal is much smaller than that of a personal computer or a television receiver. For this reason, when a map is displayed on the display unit, only a part of the map is displayed. Therefore, when a hidden part of the map is displayed, the user frequently performs an operation of moving the display position of the map.

  In addition, in order to compensate for restrictions on the display screen size and the number of input keys, the electronic map software for mobile terminals may be provided with various additional functions such as a menu display function. However, in order to use such an additional function, an operation is required each time. That is, when the electronic map software is used in the mobile terminal, the number of operations is further increased, and accordingly, the processing state is frequently changed and the number of logs recorded as history is increased. This increase in the log recorded as history is very unfavorable for a portable terminal in which the processing capability of the CPU is limited compared to a personal computer or the like.

  The present invention has been made paying attention to the above circumstances, and its purpose is to reliably record high priority logs and reduce the number of logs recorded as history, thereby allowing the user to An object of the present invention is to provide a terminal device having an electronic map function for improving convenience when trying to restore the processing state, a method for creating an electronic map history, a program, and a recording medium storing the program.

In order to achieve the above object, the present invention provides a terminal device including an electronic map execution program that reads and presents map information in response to a user operation, and includes an execution environment for the electronic map execution program in response to a user operation. Each time the internal state changes, log information representing the internal state is generated, and an evaluation value related to the generated log information is generated. Then, based on this evaluation value, it is determined whether or not the generated log information is to be stored, and the log information determined to be stored is stored as a history.

Therefore, according to the present invention, an evaluation value relating to the log information is generated for each log information, and it is determined whether or not the log information is a storage target based on the evaluation value, and the log information determined to be a storage target Only recorded in history. For this reason, only log information representing characteristic changes among changes in the internal information of the electronic map function is stored in the history, and the amount of history information is reduced compared to the case of recording all log information. Can be reduced. As a result, when the past internal state is reproduced with reference to the history, it is possible to reproduce the desired internal state with a small number of operations, thereby greatly improving the user operability.

The present invention is also characterized by having the following various specific configurations.
In the first configuration, when a function that causes a change in the internal state of the execution environment of the electronic map execution program is executed when generating the evaluation value, the change in the internal state due to the execution of the function is performed. generates a predetermined change amount as the first weight information, it is an evaluation value of the first weight information.
In this way, log information associated with an operation having a small change amount corresponding to a change in the internal state, such as a map scroll operation, is not stored as history. On the other hand, log information associated with an operation with a large amount of change determined in advance corresponding to a change in the internal state, such as a page turning operation of a map or a browsing operation of attached information related to an arbitrary point on the map. , Will be saved as history.

In the second configuration, when an evaluation value is generated, when a function that causes a change in the internal state of the execution environment of the electronic map execution program is executed , a time interval of the change in the internal state is obtained. Second weight information corresponding to the length of the time interval is generated, and this second weight information is used as the evaluation value of the internal state before the change.
In this way, for example, when the time interval from the previous operation to the current operation is short, the user sees the information displayed by the previous operation only for a short time, and the degree of attention is considered low. Log information at this time is not saved. On the other hand, if the time interval from the previous operation to the current operation is long, the user has watched the information displayed by the previous operation for a long time, and the log at this time is regarded as having a high degree of attention. Information is saved.

According to the third configuration, when the evaluation value is generated, the elapsed time from the time when the internal state of the execution environment of the electronic map execution program changes to the time when the history reference operation is performed according to the history reference operation. Thus, the third weight information corresponding to the length of the elapsed time is generated, and the third weight information is used as the evaluation value of the internal state change.
In this way, the log information is considered to be lower in value than the time when the history reference operation is performed and is not stored in the history, whereas the log information is not stored in the history. Log information generated at a relatively new point in time is regarded as having high information value and stored in the history.

In the fourth configuration, when determining whether or not log information is to be stored, the evaluation value is compared with a preset threshold value, and log information whose evaluation value exceeds the threshold value is set as a storage target. Is.
In this way, the necessity of storage can be determined relatively easily based on the threshold value.

In the fifth configuration, when there are a plurality of pieces of log information to be determined, priorities are set in descending order of evaluation values for the log information, and a predetermined number of pieces of log information from the highest priority are stored. To do.
In this way, a certain number of log information can be saved in the order of importance or attention, so even if there are many log information with high evaluation values, the history size is always limited to a certain number or less. can do.

In short, in the present invention, every time the internal state of the execution environment of the electronic map execution program changes according to a user operation, log information representing the internal state after the change is generated, and the evaluation value related to the generated log information Is generated, and based on this evaluation value, it is determined whether or not the generated log information is to be stored, and the log information determined to be stored is stored as a history.

  Therefore, according to the present invention, it is possible to reduce the number of logs recorded as history after reliably recording high priority logs, thereby improving the convenience when the user tries to restore the past processing state. A terminal device having an improved electronic map function, a method for creating an electronic map history, a program, and a recording medium on which the program is recorded can be provided.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a block diagram showing a functional configuration of a mobile terminal which is an embodiment of a terminal device having an electronic map function according to the present invention.
The portable terminal includes a central processing unit (CPU) 1. A data storage unit 3 and a program storage unit 4 are connected to the CPU 1 via a bus 2, and an input interface 5, an output interface 6, and a communication interface 7 are connected to the CPU 1.

  Connected to the input interface 5 is a key input unit 51 having a dial keypad, cursor keys, and other various function keys. The input interface 5 generates operation code data corresponding to the key pressed by the user in the key input unit 51 and outputs the operation code data to the CPU 1. The output interface 6 is connected to a display unit 61 made of, for example, a liquid crystal display (LCD). The output interface 6 supplies display data to the display unit 61 for display under the control of the CPU 1.

  The communication interface 7 includes a signal processing unit that performs an encoding / decoding process and a wireless unit that includes an antenna 71. Then, under the control of the CPU 1, a wireless communication operation for voice communication or data communication is performed with a base station (not shown). With this wireless communication operation, it is possible to download portable electronic hazard map content data, which will be described later, from a disaster prevention information server (not shown).

  The data storage unit 3 stores portable electronic hazard map content data 31 and history management data 32. The portable electronic hazard map content data 31 includes electronic map data and attached information representing a facility or park designated as an evacuation site, a store that handles supplies such as food.

The history management data 32 includes a state log table 321, a history table 322, a state change amount table 323, a time interval-weight correspondence table 324, an elapsed time-weight correspondence table 325, and an internal clock 326. The
In the state log table 321, for example, management information indicating the internal state of the execution environment of the portable electronic hazard map execution program and information for calculating an evaluation value are stored in association with the log number as shown in FIG. Is done. The management information indicating the internal state is selected on the menu, the time interval between the log generation time and the next log generation time, the cursor coordinates on the map, whether or not the menu display (function 1) is executed, and so on. Function name, whether or not the facility list display (function 2) is executed, and whether or not the facility surrounding map display (function 3) is executed. On the other hand, the information for calculating the evaluation value includes a weight corresponding to the amount of change in the internal state, a weight corresponding to the time interval, a weight corresponding to the elapsed time, and a score representing the evaluation value.

  The history table 322 stores log information extracted from the state log table 321 by a history extraction processing program 4213 described later. The stored log information includes management information indicating the internal state, information for calculating an evaluation value, and naming information of the internal state to be described later, and these are stored in association with the log number.

  The state change amount table 323 includes, for example, items for writing a function for causing a state change and items for writing a weight of the state change amount as shown in FIG. All functions that cause a state change are listed in the item for writing the function that causes the state change, and the weight of the state change amount corresponding to each function is stored in the item for writing the weight of the state change amount.

FIG. 3 illustrates the weight of the state change amount when one function causing the state change is executed. Generally, the function for calculating the state variable weight is G, and all the state change portions are shown. When the set is represented by P, the state change weight is
G (P⊆all (previous state change))
Set as Note that FIG. 3 illustrates the case where P is only the last state change in the above equation, and a large value for executing a function for displaying a new screen such as a menu display, Small values are set for menu selection operations and the like.

The time interval-weight correspondence table 324 includes a time interval item and a time interval weight item as shown in FIG. A plurality of preset time intervals are listed in the time interval item, and weights corresponding to the respective time intervals are stored in the time interval weight item. FIG. 4 illustrates the time interval weight when one function that causes a state change is executed. Generally, the function for calculating the time interval weight is H, and the time interval part of all state changes is shown. If the set is represented by P, the time interval weight is
G (P⊆all (previous state change time interval))
Set as FIG. 4 exemplifies the case where P is only the time interval of the last state change in the above formula, and the weight of the time interval becomes larger as the time interval becomes longer in the range of 0 to 1. Is set.

  The elapsed time-weight correspondence table 325 includes, for example, an elapsed time item and an elapsed time weight item as shown in FIG. In the elapsed time item, all types of elapsed time from the log generation time to the time when the user's history reference operation is performed are listed. On the other hand, the weight corresponding to each elapsed time is stored in the item of elapsed time weight. FIG. 5 illustrates a case where the weight of the elapsed time is set to be smaller as the elapsed time becomes longer in the range of 1 to 0.

The internal clock 326 is composed of a real time clock, and the time measurement data is used for giving a generation time to the log.
On the other hand, the program storage unit 4 stores a portable electronic hazard map execution program 41 and a history management program 42. The portable electronic hazard map execution program 41 controls the CPU 1 to selectively read out map data, attached data, menu data, and the like from the portable electronic hazard map content data 31 and display them on the display unit 61 in response to a user operation. To run.

  The history management program 42 includes a history creation program 421, a history display program 422, and a history selection / execution program 423. Among these, the history creation program 421 includes a key operation detection processing program 4211, a score calculation processing program 4212, a history extraction processing program 4213, and a naming processing program 4214.

  Based on the operation code data output from the input interface 5 in response to a user operation, the key operation detection processing program 4211 has changed the internal state of the execution environment of the portable electronic hazard map execution program due to the user operation. The CPU 1 is caused to execute a process for determining whether or not.

  The score calculation processing program 4212 generates log information representing a change in the internal state when it is determined by the key operation detection processing program 4211 that the internal state of the execution environment of the portable electronic hazard map execution program has changed. Then, the CPU 1 is caused to execute the process of writing to the status log table 321 as follows.

  That is, first, information representing the time and contents of the internal state after the change is generated and written in the state log table 321. Subsequently, the change amount weight corresponding to the function causing the change in the internal state is read from the state change amount table 323 and written in the state log table 321. Further, a time difference, that is, a time interval between the change time of the previous internal state and the change time of the current internal state is obtained, and the weight corresponding to this time interval is read from the time interval-weight correspondence table 324 and is read as the previous time. Write to the status log table 321 as one element of log information corresponding to the change in the internal status.

  Further, when a history call operation is performed, an elapsed time from the change time of the internal state occurring before that to the time when the history call operation is performed is obtained, and a weight corresponding to this elapsed time is set as the elapsed time. Reading from the weight correspondence table 325 and writing it in the status log table 321 as a part of the log information representing the internal change.

The score calculation processing program 4212 calculates a score representing an evaluation value from the change weight of the internal state, the time interval weight, and the elapsed time weight for each log information stored in the state log table 321, The CPU 1 is caused to execute a process of writing the calculated score in the state log table 321. At this time, as a score calculation formula, for example,
Score = State change weight x Time interval weight x Elapsed time weight
Score = State change weight + Time interval weight + Elapsed time weight
Score = log (state change weight) + log (time interval weight) + log (elapsed time weight)
Either of these is used.

  The history extraction processing program 4213 determines whether or not the corresponding log information should be saved as history based on the score calculated by the score calculation processing program 4212, and extracts the log information determined to be saved. Then, the CPU 1 is caused to execute a process of storing this in the history table 322. As means for determining the necessity of storage, the above score is compared with a preset threshold value and log information whose score exceeds the threshold value is extracted as a storage target, and each log information has a high score It is possible to prioritize in order and extract a certain number of log information with higher priority as a storage target.

  The naming processing program 4214 generates naming information representing the contents of the internal state of the log information extracted as a storage target by the history extraction processing program 4213, and adds or includes the generated naming information to the log information. The CPU 1 is caused to execute the storing process.

  The history display program 422 reads the naming information added to or included in the log information from the history table 322 in response to the history call operation, and displays the naming information on the display unit 61 via the output interface 6. To run.

  When the user selects and operates the naming information displayed on the display unit by the history display program 422, the history selection / execution program 423 creates an electronic hazard map based on log information corresponding to the selected naming information. The CPU 1 is caused to execute a process for restoring the display data and displaying the restored display data on the display unit 61 via the output interface 6.

Next, the operation of the apparatus configured as described above will be described according to the control procedure of the CPU 1.
(1) Display of portable electronic hazard map content data
The portable electronic hazard map content data 31 includes an electronic map. When the user operates the key input unit 51 to specify a desired area, an electronic map including the area is read from the data storage unit 3. It is displayed on the display unit 61. At this time, since the display unit 61 of the portable terminal has a smaller display size than a personal computer, a television receiver or the like, when trying to display the entire electronic map on the display unit 61 in a batch, detailed map information such as a path is displayed. It cannot be displayed.

  Therefore, when displaying detailed map information, for example, as shown in FIG. 8, only a part (a part enclosed by a square in the figure) of the entire electronic map is displayed. In this case, the portable electronic hazard map execution program 41 displays a cursor as shown in FIG. 8 at the center of the displayed partial map in the entire electronic map. The position of the cursor is represented by coordinates (x, y) where the horizontal direction of the display screen is the x axis and the vertical direction is the y axis, and is used as information representing the internal state of the portable electronic hazard map execution program 41.

  In this state, when the user operates the key input unit 51 to move the cursor on the display screen, another partial map in the electronic map is displayed on the display unit 61 as the cursor moves. Therefore, the user can display a desired partial map in the electronic map by moving the cursor.

  Further, it is assumed that the user selects a menu display button (M1 in FIG. 9) provided on the display screen while the partial map is displayed. Then, a “menu” is displayed on the display screen of the display unit 61, for example, as shown in FIG. In the menu, selection items of various functions such as “facility list display”, “evacuation direction display”, “facility map display”,.

  In this state, when the user operates the key input unit 51 and selects a desired item from the menu, for example, “display a facility map” as shown in FIG. 9, the portable electronic hazard map content data 31 is selected. The map around the facility selected by the cursor is read out and displayed on the display unit 61. If “display evacuation direction” is selected, information indicating the evacuation direction based on the cursor position is read and displayed.

  Similarly, if any other item is arbitrarily selected, the corresponding function is executed and the display data is displayed on the display unit 61. For example, the portable electronic hazard map content data 31 is defined by adding a circular range whose radius is a specific distance around the disaster occurrence point, a rectangular range whose specific distance is one side, a specific direction and a specific angle. It also has a function of setting the sector range as an inaccessible or dangerous area. The user can acquire the disaster area information by executing the function by selecting the corresponding function item.

(2) Creation of history
In the CPU 1, history creation control is executed by the history creation program 42 in parallel with the hazard map data display control by the portable electronic hazard map execution program 41. 6 is a flowchart showing the control procedure and control content.

  In step S11 and step S12, the CPU 1 monitors the key operation in the key input unit 51 and monitors the change in the internal state of the portable electronic hazard map execution program 41 associated therewith. In this state, it is assumed that the internal state of the portable electronic hazard map execution program 41 is changed by the above-described cursor movement, menu display, or execution of various functions by selecting items in the menu.

  Then, in step S13, the CPU 1 first generates a log number, and indicates information indicating the internal state after the state change, for example, the time when the internal state changes, the position coordinates of the cursor, the name of the executed function, etc. Write in the status log table 321 in association with the number. Subsequently, in step S14, the change amount weight corresponding to the function causing the change in the internal state is read from the state change amount table 323, and the change amount weight is written in the state log table 321. In step S15, a time difference (time interval) between the previous internal state change time and the current internal state change time is obtained, and the weight corresponding to this time interval is read from the time interval-weight correspondence table 324. This is written in the state log table 321 as one element of log information related to the previous internal state change.

  For example, assume that the user selects and executes “facility list display” (function 2) in the displayed menu. In this case, as shown in FIG. 2, the time “10: 13: 10′15”, the cursor coordinates “(120,340)” on the map, and the function name “function” selected on the menu are first displayed. 2 ”is written to the status log table 321, and the change weight“ 10 ”read from the status change table 323 is further written to the status log table 321.

  Subsequently, the time “10: 13: 10'70” and the cursor coordinates “(120,340)” on the map are written in the state log table 321 according to the execution operation, and the facility list display (function 2) control is executed. “◯” is written, and the change weight “40” read from the state change table 323 is written to the state log table 321. In addition, the time interval “00: 00'55” between the current execution operation time “10: 13: 10'70” and the previous selection operation time “10: 13: 10'15” is calculated and this is the previous selection. It is written in the status log table 321 as operation log information, and the weight “0.1” corresponding to the time interval “00: 00'55” is read from the time interval-weight correspondence table 324 to read the status log table 321. Is written to.

  Thereafter, similarly, every time a change in the internal state of the portable electronic hazard map execution program 41 is detected, the CPU 1 performs information indicating the internal state after the state change and the amount of change in the internal state, respectively, in steps S13 to S15. The weight and time interval weight are written in the status log table 321.

  On the other hand, the CPU 1 monitors the call operation of the history call program 422 in step S16 while controlling the writing of various information to the state log table 321. If the user performs a call operation of the history call program 422 in this state, the CPU 1 uses this operation as a trigger to shift to step S17, and executes elapsed time weight writing processing as follows.

  That is, for each change in the internal state that occurs between the previous call operation of the history call program 422 and the current call operation of the history call program 422, from the change time of the internal state. The elapsed time up to the time when the current history call operation is performed is calculated. Then, the weight corresponding to the elapsed time is read from the elapsed time-weight correspondence table 325, and the read elapsed time weight is written in the state log table 321 in association with each change in the internal state.

  For example, if the call operation of the history call program 422 is performed from 1 minute to less than 2 minutes (00: 01-00: 02) from the selection operation time and execution operation time of “Function 2” described above, the status log As shown in FIG. 2, “0.9” is written in the table 321 in association with the change in the internal state caused by the selection and execution of “Function 2”.

When the writing of the elapsed time weight is completed, the CPU 1 proceeds to step S18 and executes the score calculation process here. As described above, this score calculation process
Score = State change weight x Time interval weight x Elapsed time weight
Score = State change weight + Time interval weight + Elapsed time weight
Score = log (state change weight) + log (time interval weight) + log (elapsed time weight)
The score obtained by this calculation is written in the status log table 321.

  Subsequently, in step S19, the CPU 1 determines whether or not the corresponding log information should be saved as history based on the calculated score. This determination is performed by, for example, comparing the score with a preset threshold value and extracting log information whose score exceeds the threshold value as a storage target.

  Moreover, CPU1 produces | generates the naming information showing the content of the internal state with respect to each of the log information determined to be preserve | saved in step S110. For example, if the internal state is “execution of function 2” as described above, a message “facility list display” is generated as naming information.

Finally, in step S111, the CPU 1 stores the log information extracted as the storage target in the history table 322 together with the naming information. For example, if “1” is set as the threshold, only the log information of log numbers “102”, “105”, and “108” among the log information shown in FIG. 2 represents the internal state. It is stored in the history table 322 together with the naming information.
Thus, a history table storing only important or characteristic log information with a high score (evaluation value) is created.
The history table is newly created every time the history call program 422 is called, but the existing history table may be updated every time the history call program 422 is called. .

(3) Restoring past internal state based on history
When the creation of the history is completed, the CPU 1 executes a restoration process of the past internal state based on the created history as follows. FIG. 7 is a flowchart showing the control procedure and control contents. That is, the CPU 1 first calls the history display program 422 in step S21, and causes the history display program 422 to be executed in step S22. As a result, the naming information of the log information stored from the history table 322 is read and displayed on the display unit 61 in order according to time series. Therefore, the user can easily and accurately recognize the log information to be reproduced based on the displayed naming information.

  When the user selects and designates the naming information of the log information to be reproduced in this state, the CPU 1 proceeds to step S23, where the history selection / execution program 423 is executed. As a result, the log information selected by the naming is read from the history table 322, and display data representing the internal state is reproduced based on the log information. Then, the reproduced display data is supplied to the display unit 61 through the output interface 6 and reproduced and displayed. Therefore, the user can easily and quickly reconfirm display data representing the past internal state.

  As described above, in this embodiment, in the portable terminal provided with the portable electronic hazard map execution program 41 that reads and displays the electronic map according to the user operation, the portable electronic hazard map execution program according to the user operation. Each time a change occurs in the internal state 41, information indicating the internal state after the state change, the change weight of the internal state, and the time interval weight are written in the state log table 321, and in response to the call operation of the history call program 422 The elapsed time weight is written in the status log table 321. Then, a score is calculated based on each of the above weights, compared with a threshold value, log information whose score exceeds the threshold value is extracted as a storage target, and this is stored in the history table 322 together with the naming information. I have to.

  Therefore, only the log information representing the characteristic change with a high score among the changes in the internal state of the portable electronic hazard map execution program 41 is stored in the history table 422, and all the log information cannot be stored. The amount of history information can be reduced as compared with the case of recording as history. As a result, the memory capacity for storing the history can be reduced. In addition, even when the user tries to reproduce and display the past internal state by referring to the history, it is possible to easily and quickly reproduce and display the desired internal state with few operations. It can be greatly improved.

  In addition, since the naming information representing the content of the change in the internal state is generated for each log information, and the generated naming information is included in the log information and stored, the user can refer to the history and store the past internal information. When trying to reproduce the state, it is possible to search for desired log information simply, accurately and quickly by naming information attached to each log information.

  The present invention is not limited to the above embodiment. For example, in the above-described embodiment, the log information score is compared with a threshold value in the history extraction process, and those whose score exceeds the threshold value are extracted as storage targets. However, the present invention is not limited to this, and priority may be given to each log information in descending order of the score, and a predetermined number of log information from the highest priority may be stored. In this way, a certain number of log information can be saved in the order of high score, that is, in the order of importance or attention, so even if there are a lot of log information with high evaluation values, the history size is always kept constant. The number can be kept below the number.

  In the above embodiment, the score is calculated based on the change weight of the internal state, the time interval weight, and the elapsed time weight, and it is determined whether or not it is necessary to save the log information using the score as an evaluation value. . However, the present invention is not limited to this, and the score may be calculated by arbitrarily selecting one or two of the above-described internal state variation weight, time interval weight, and elapsed time weight.

In addition, the electronic map data type, display control content, history creation control procedure and content, state restoration control processing content, terminal device type and configuration, and the like are variously modified without departing from the scope of the present invention. Can be implemented.
In short, the present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. Further, various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the embodiment. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, you may combine suitably the component covering different embodiment.

The block diagram which shows the function structure of the portable terminal which is one Embodiment of the terminal device provided with the electronic map management function concerning this invention. The figure which shows an example of the state log table provided in the portable terminal shown in FIG. The figure which shows an example of the state change amount table provided in the portable terminal shown in FIG. The figure which shows an example of the time interval-weight correspondence table provided in the portable terminal shown in FIG. The figure which shows an example of the elapsed time-weight correspondence table provided in the portable terminal shown in FIG. The flowchart which shows the procedure and content of history creation control by the portable terminal shown in FIG. The flowchart which shows the procedure and content of the state restoration control based on the history by the portable terminal shown in FIG. The figure which shows the example of a display of the map data in the portable terminal shown in FIG. The figure which shows the example of a display of the menu screen in the portable terminal shown in FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... CPU, 2 ... Bus, 3 ... Data storage part, 31 ... Electronic hazard map content data, 32 ... History management data, 321 ... State log table, 322 ... History table, 323 ... State change amount table, 324 ... Time Interval ... weight correspondence table, 325 ... elapsed time-weight correspondence table, 4 ... program storage unit, 41 ... electronic hazard map execution program, 42 ... history management program, 421 ... history creation program, 422 ... history display program, 423 ... History selection / execution program, 4211 ... key operation detection processing program, 4212 ... score calculation processing program, 4213 ... history extraction processing program, 4214 ... state naming processing program, 5 ... input interface, 51 ... key input unit, 6 ... output interface Over vinegar, 61 ... display unit, 7 ... communication interface.

Claims (10)

A terminal device comprising an electronic map execution program that reads and presents map information in response to a user operation,
Each time the internal state of the execution environment of the electronic map execution program are changed in response to the user operation, and the log information generating means for generating log information representing the internal state,
An evaluation value generating means for generating an evaluation value related to the generated log information ;
Determining means for determining whether or not the generated log information is to be stored based on the evaluation value;
History storage means for storing log information determined to be stored by the determination means as history;
A history presentation unit that reads out and presents the stored history in response to a history reference operation by the user ;
The evaluation value generation means generates, as first weight information , a predetermined amount of change corresponding to a change in the internal state due to the execution of the function when the function causing the change in the internal state is executed. A terminal device having an electronic map function, wherein the first weight information is used as an evaluation value. A terminal device comprising an electronic map execution program that reads and presents map information in response to a user operation,
Every time the internal state of the execution environment of the electronic map execution program are changed in response to the user operation, and the log information generating means for generating log information representing the internal state,
An evaluation value generating means for generating an evaluation value related to the generated log information ;
Determining means for determining whether or not the generated log information is to be stored based on the evaluation value;
History storage means for storing log information determined to be stored by the determination means as history;
A history presentation unit that reads out and presents the stored history in response to a history reference operation by the user ;
The evaluation value generating means, when a function that causes a change in the internal state is executed, seek time interval of the change in the internal state, the second weight information corresponding to the length of the time interval generated, the terminal apparatus having a to that electronic map function, characterized in that the second weight information and evaluation values representing the internal state before the change. A terminal device comprising an electronic map execution program that reads and presents map information in response to a user operation,
Each time the internal state of the execution environment of the electronic map execution program are changed in response to the user operation, and the log information generating means for generating log information representing the internal state,
An evaluation value generating means for generating an evaluation value related to the generated log information ;
Determining means for determining whether or not the generated log information is to be stored based on the evaluation value;
History storage means for storing log information determined to be stored by the determination means as history;
A history presentation unit that reads out and presents the stored history in response to a history reference operation by the user ;
The evaluation value generation means obtains an elapsed time from a change point of the internal state to a time point when the history reference operation is performed in response to the history reference operation, and determines the first time corresponding to the length of the elapsed time. 3 generates weight information, the third terminal apparatus having a to that electronic map function, characterized in that the evaluation value weight information. The said determination means compares the said evaluation value with the preset threshold value, and extracts the log information in which an evaluation value exceeds a threshold value as a preservation | save object, The Claim 1 thru | or 3 characterized by the above-mentioned. A terminal device with an electronic map function. When there are a plurality of pieces of log information to be determined, the determination unit sets priorities in descending order of evaluation values for these log information, and extracts a predetermined number of pieces of log information from the highest priority as storage targets. The terminal device provided with the electronic map function according to any one of claims 1 to 3 . A history creation method executed by a terminal device provided with an electronic map execution program that reads and presents map information in response to a user operation,
  A log information generating step for generating log information representing the internal state each time the internal state of the execution environment of the electronic map execution program changes in response to the user operation;
  An evaluation value generating means for generating an evaluation value related to the generated log information;
  A determination step for determining whether or not the generated log information is to be stored based on the evaluation value;
  A history storage step, wherein the history storage unit stores the log information determined to be stored by the determination unit as a history;
  A history presentation process in which history presentation means reads and presents the stored history in response to a history reference operation by the user;
  Comprising
  In the evaluation value generation process, when the function that causes the change in the internal state is executed, the evaluation value generation means sets a predetermined amount of change corresponding to the change in the internal state due to the execution of the function. Generated as first weight information, and this first weight information is used as an evaluation value
  A history creation method characterized by this. A history creation method executed by a terminal device provided with an electronic map execution program that reads and presents map information in response to a user operation,
  A log information generating step for generating log information representing the internal state each time the internal state of the execution environment of the electronic map execution program changes in response to the user operation;
  An evaluation value generating means for generating an evaluation value related to the generated log information;
  A determination step for determining whether or not the generated log information is to be stored based on the evaluation value;
  A history storage step, wherein the history storage unit stores the log information determined to be stored by the determination unit as a history;
  A history presentation process in which history presentation means reads and presents the stored history in response to a history reference operation by the user;
  Comprising
  In the evaluation value generation process, when the function of causing the change of the internal state is executed, the evaluation value generation unit obtains a time interval of the change of the internal state and responds to the length of the time interval. Second weight information is generated, and the second weight information is used as an evaluation value representing the internal state before the change.
  A history creation method characterized by this. A history creation method executed by a terminal device provided with an electronic map execution program that reads and presents map information in response to a user operation,
  A log information generating step for generating log information representing the internal state each time the internal state of the execution environment of the electronic map execution program changes in response to the user operation;
  An evaluation value generating means for generating an evaluation value related to the generated log information;
  A determination step for determining whether or not the generated log information is to be stored based on the evaluation value;
  A history storage step, wherein the history storage unit stores the log information determined to be stored by the determination unit as a history;
  A history presentation process in which history presentation means reads and presents the stored history in response to a history reference operation by the user;
  Comprising
  In the evaluation value generation process, the evaluation value generation means obtains an elapsed time from a change time of the internal state to a time when the history reference operation is performed according to the history reference operation. 3rd weight information according to the length of is generated, and this 3rd weight information is used as an evaluation value.
  A history creation method characterized by this. A computer having an electronic map execution program that reads and presents map information in response to a user operation is caused to function as each unit included in a terminal device having an electronic map function according to any one of claims 1 to 5. A featured electronic map history creation program. A computer-readable recording medium on which the electronic map history creating program according to claim 9 is recorded.

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