JP2009296314A - Service transfer control system, service transfer control method, and service transfer control program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To continuously provide a service, even when a mobile terminal cannot provide service due to insufficiency in the battery capacity. <P>SOLUTION: This service transfer control system is provided with a server, and a terminal device capable of communicating with the server. The terminal device stores transfer information related to the transfer of a service. The remaining battery charge of the terminal device is monitored. Transfer timing for the service is detected from the transfer information and the remaining battery charge. The service is transferred to the server. The server stores the service transmitted from the terminal device. The service is executed, when there is a request for the service made from another apparatus. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a service mobility control system, a service mobility control method, and a service mobility control program that can be applied to an environment in which a battery-driven portable device provides a service on a wireless network.

  As mobile terminals have higher functionality and higher specifications, not only does the mobile terminal receive services as in the conventional client server model, but the environment for the mobile terminals to provide services is being prepared.

  Here, the service refers to a function composed of a program, data, or both. The provision of a service by a mobile terminal means that it provides its own function to another device that accesses the mobile terminal, and that it operates as a server.

  By operating the mobile terminal as a server, it is possible to reduce the load on the conventional server and to reduce resource consumption. That is, it is possible to reduce the load on the CPU caused by the execution of the service, and to suppress the consumption of memory (RAM: Random Access Memory) and storage.

  However, since mobile devices such as mobile phones are usually operated using batteries, if the battery capacity runs out or if there is not enough remaining capacity to provide services, There arises a problem that services cannot be provided to other devices.

  As a method of solving this problem, a method of temporarily moving a service provided on the mobile terminal side to a server can be considered. In this case, the other device that has been provided with the service of the portable terminal until now temporarily receives the service from the destination server while the portable terminal cannot provide the service.

As a related technique for solving the above-described problem, Patent Document 1 proposes a method for exchanging files in consideration of the remaining battery level. In the method proposed in Patent Document 1, the remaining battery level is acquired at the time of a file upload operation by the user, and it is determined whether the file can be exchanged. If it is not possible, processing such as transfer using the resume function is performed.
JP 2004-078584 A

  However, the invention described in Patent Document 1 described above is insufficient as a method for moving a service provided by a mobile terminal to a server because of the following problems.

  The first problem is that services may not be performed continuously.

  The reason is that it is necessary to use the resume function when the mobile device does not have enough remaining battery power to move, so the service is required between charging the mobile device and completing the transfer using the resume function. It is because it cannot provide.

  The second problem is that the user's operation becomes complicated.

  The reason is that the user must explicitly select the data to be moved. Furthermore, there is a problem that it is difficult for the user to grasp the modules constituting the service and the modules required from other devices.

  In addition, since the movement process itself should not be burdened from the point of battery consumption, there is a problem that it is necessary not to move all modules but to move only the minimum necessary modules.

  Accordingly, an object of the present invention is to provide a service mobility control system, a service mobility control method, and a service mobility control program that allow a service to be continued even when a mobile terminal cannot provide services to other devices due to insufficient battery capacity. .

  Furthermore, as another object, the present invention provides a service mobility control system, a service mobility control method, and a service mobility control program that can automatically move only necessary programs or data at appropriate timing. Objective.

  According to a first aspect of the present invention, there is provided a server and a terminal device capable of communicating with the server. A movement information database for storing information, a battery remaining amount monitoring means for monitoring a remaining battery capacity of the terminal device, a terminal status monitoring means for detecting a movement timing of a service from the movement information and the remaining battery capacity, and a service. A communication control unit that moves to the server, wherein the server stores a service that is transmitted from the terminal device, and a service execution that executes a service when a service request is received from another device And a service mobility control system.

  According to the second aspect of the present invention, the service is a function in which the terminal device of the service mobility control system including a server and a terminal device capable of communicating with the server is configured by a program, data, or both. A movement information database for storing movement information relating to movement of the terminal, a battery remaining amount monitoring unit for monitoring the remaining battery level of the terminal device, and a terminal state monitoring unit for detecting the movement timing of the service from the movement information and the remaining battery level And a communication control means for moving a service to the server.

  According to the third aspect of the present invention, the server of the service mobility control system including a server and a terminal device capable of communicating with the server is configured by a program, data, or both from another device. When there is a request for a service, a request determination unit for determining the request is provided, and when it is determined that the terminal device can provide the service, the service request from the other device is transferred to the terminal device. When the terminal device determines that the service cannot be provided, a server is provided that executes the service stored therein.

  According to a fourth aspect of the present invention, in a system including a server and a terminal device capable of communicating with the server, the service is a function in which the terminal device includes a program, data, or both. Preparing a movement information database for storing movement information relating to, a battery remaining amount monitoring step in which the terminal device monitors a remaining battery amount of the terminal device, and the terminal device including the movement information and the remaining battery amount. A terminal state monitoring step of detecting a movement timing of the service from the terminal, a communication control step in which the terminal device moves the service to the server, and a service storage step in which the server stores the service transmitted from the terminal device; A service execution step for executing a service when the server requests a service from another device; International movement control method, characterized in that there is provided.

  According to a fifth aspect of the present invention, the service is a function in which the terminal device of the service mobility control system including a server and a terminal device capable of communicating with the server is configured by a program, data, or both. Preparing a movement information database for storing movement information relating to movement of the terminal, a battery remaining amount monitoring step in which the terminal device monitors a remaining battery amount of the terminal device, and the terminal device including the movement information and the battery. There is provided a service movement control method comprising: a terminal state monitoring step of detecting a movement timing of a service from a remaining amount; and a communication control step of moving the service to the server.

  According to a sixth aspect of the present invention, the server of the service mobility control system comprising a server and a terminal device capable of communicating with the server is configured from another device, a program, data, or both A request determination step for determining a request when a request for a service is received, and when the server determines that the terminal device can provide a service, the request for the service from the other device is transmitted to the terminal. A service mobility control method is provided in which a service stored in the terminal device is executed when the terminal device determines that the service cannot be provided.

  According to a seventh aspect of the present invention, a service that is a function comprising a program, data, or both of the terminal device of a service mobility control system comprising a server and a terminal device capable of communicating with the server. A movement information database for storing movement information relating to movement of the terminal, a battery remaining amount monitoring unit for monitoring the remaining battery level of the terminal device, and a terminal state monitoring unit for detecting the movement timing of the service from the movement information and the remaining battery level A service movement control program for causing a computer to function as a terminal device, comprising: a communication control unit configured to move a service to the server.

  According to an eighth aspect of the present invention, a function of the server of the service mobility control system comprising a server and a terminal device capable of communicating with the server is configured from another device, a program, data, or both. When there is a request for a service, a request determination unit for determining the request is provided, and when it is determined that the terminal device can provide the service, the service request from the other device is transferred to the terminal device. When the terminal device determines that the service cannot be provided, a service movement control program for causing the computer to function as a server is provided, wherein the service stored in the terminal device is executed.

  According to the present invention, since the service provided by the mobile terminal is moved to the server before the battery capacity becomes insufficient, the service is continuously provided even when the mobile terminal cannot provide the service due to insufficient battery capacity. It becomes possible.

  Furthermore, according to the present invention, the program or data required for moving the service is determined, the time required for moving is calculated from the current network status, and the timing for moving from the current battery level is determined. Only the necessary program or data can be moved at an appropriate timing without the user of the portable terminal being aware of the remaining battery level and the movement of the service.

  Next, the best mode for carrying out the invention will be described in detail with reference to the drawings.

  Referring to FIG. 1, the first embodiment of the present invention includes a server 100 and a mobile terminal 200.

  The server 100 includes a communication control unit 101, a service storage unit 102, a service execution unit 103, and an execution monitoring unit 104.

  The communication control unit 101 has a function of accepting a service movement request from the mobile terminal 200. Further, it has a function of transmitting service execution information acquired by the execution monitoring unit 104 to the mobile terminal 200. Furthermore, when the service is moving to the server 100, it has a function of receiving a service request from another device (not shown). The service storage unit 102 stores the service received by the communication control unit 101. The service execution unit 103 has a function of executing a service stored in the service storage unit 102. The execution monitoring unit 104 has a function of monitoring a service executed by the service execution unit 103 and generating service execution information.

  The mobile terminal 200 includes a communication control unit 201, a service storage unit 202, a service execution unit 203, an execution monitoring unit 204, a terminal state monitoring unit 205, and a movement information database 206 (in the figure, referred to as movement information DB 206). And a movement control unit 207.

  The communication control unit 201 has a function of receiving a service request from another device (not shown). Further, the communication control unit 201 has a function of transmitting a service passed from the movement control unit 207 to the server 100. Furthermore, the communication control unit 201 has a function of receiving service execution information transmitted from the server 100. The service storage unit 202 stores services provided by the mobile terminal 200. The service execution unit 203 has a function of executing a service stored in the service storage unit 202. The execution monitoring unit 204 has a function of monitoring a service executed by the service execution unit 203 and storing service execution information in the movement information database 206. The terminal state monitoring unit 205 has a function of monitoring the state of the mobile terminal 200 such as the network state and the remaining battery level. Moreover, the timing which moves a service is detected and a trigger is notified to the movement control part 207. FIG. The movement information database 206 stores information on service movement. The movement control unit 207 has a function of calculating time required for movement from movement information in the movement information database 206. In response to a trigger from the terminal state monitoring unit 205, the communication control unit 201 is requested to move the service.

  Next, the overall operation of this exemplary embodiment will be described in detail with reference to a block diagram and a flowchart.

  First, the service movement process in the mobile terminal 200 of FIG. 1 will be described. The terminal state monitoring unit 205 detects the movement timing of the service from the movement information in the movement information database 206 created by the movement information creation process described later and the remaining battery level acquired by the battery remaining amount monitoring process described later. Then, the terminal state monitoring unit 205 notifies the movement control unit 207 of movement (step S21 in FIG. 2).

  Upon receiving the movement notification, the movement control unit 207 acquires the service information (list) to be moved from the movement information database 206 (step S22), and acquires the service entity from the service storage unit 202 based on the information (step S22). Step S23). Thereafter, the movement control unit 207 notifies the communication control unit 201 of a movement request.

  The communication control unit 201 transmits a service to the server 100 (step S24). When transmitting, information (ID) that can identify the mobile terminal 200 is sent so that the server 100 can distinguish the mobile terminal 200 from other devices. Here, examples of information (ID) that can identify the mobile terminal 200 include a terminal ID and a SIM (Subscriber Identification Module) ID. Moreover, the server which the portable terminal 200 makes a transmission destination may be determined based on URL etc. previously stored in the portable terminal, or a different server may be designated for each service. Moreover, there is no restriction | limiting in particular regarding the protocol which should be conformed when transmitting, Arbitrary protocols can be used.

  Details of each process will be described below.

  First, a process for creating movement information in the movement information database 206 of FIG. 1 will be described. As shown in FIG. 3, the movement information database 206 includes at least information on the name of the service to be moved, the movement target, the movement time, and the network state. Other information other than these may be added to the movement information database 206.

  The service name to be moved indicates a service to be moved. The movement target refers to an object that actually moves among programs and data (hereinafter, referred to as “object”) constituting the service. The network state indicates how fast the mobile terminal 200 can currently communicate. The moving time is calculated by calculating the time required for moving the service from the size of the object to be moved and the network state. Hereinafter, the creation process will be described for each piece of information.

  The service name is a service to be moved, and the name of a service that is disclosed to the outside by the mobile terminal 200 is registered. All the services may be movable, and the user may be allowed to select a service that he / she does not want to move, but is not particularly defined here.

  The movement target is an object that actually moves, and is created by the execution monitoring unit 204. As shown in FIG. 4, the execution monitoring unit 204 includes a history information creation unit 2041, history information 2042, and a movement target creation unit 2043.

  The history information creation unit 2041 monitors service execution of the service execution unit 203 and creates history information. The history information may be, for example, the number of executions or frequency of objects in the service, but is not limited to those exemplified. Here, the execution count is created as history information. The created history information is stored in the history information 2042.

  The history information 2042 is constantly updated by the history information creation unit 2041. The movement target creation unit 2043 refers to the history information 2042, extracts an object with a large number of executions as a movement target, and stores it in the movement information database 206. As a determination criterion for extracting an object as a movement target, for example, a method in which a certain threshold value (minimum execution count or object size) is provided and extraction is performed within the range can be considered. In addition, although a mandatory object and an optional object are provided and the mandatory object is always transmitted, only a method in which the optional object is frequently executed can be considered, but this is not particularly specified here. By narrowing down the moving objects, the load accompanying the movement of the objects is reduced.

  The network status indicates the current communicable speed of the mobile terminal 200 and is created by the terminal status monitoring unit 205. FIG. 5 is a diagram illustrating details of the terminal state monitoring unit 205. The network state monitoring unit 2051 communicates with a base station (not shown) through the communication control unit 201 and acquires information on how fast the communication is currently possible. Although the acquisition method is not particularly defined, a method of inferring by RTT (Round Trip Time) or a method of using communication records performed by other functions (such as mail) of the mobile terminal may be used. Note that the base station that communicates to acquire the network state needs to be a base station that is currently communicating. This is because the communication speed may change if the base station is different. The acquired communicable speed is stored in the movement information database 206 as a network state. The network state is constantly updated by the network state monitoring unit 2051, and the average communication speed at the base station is recorded.

  The movement time indicates the time required to move the service, and is created by the movement control unit 207. The movement control unit 207 calculates the movement time using the information on the object to be moved and the information on the network state. For example, if the size of the object to be moved is 5 MB (megabytes) and the network state is 1 Mbps (bit second), “5/1 * 8 = 40 (1 byte = 8 bits converted)” and the movement time is 40 seconds. It becomes. The calculated travel time is stored in the travel information database 206.

  By performing the above processing, the movement information in the movement information database 206 is created.

  Next, processing for detecting the movement timing of a service will be described with reference to FIGS. The battery remaining amount monitoring unit 2052 in FIG. 5 acquires the travel time from the travel information database 206 (S61 in FIG. 6).

  Moreover, the battery remaining amount of the portable terminal 200 is acquired (step S62). A method for acquiring the remaining battery level is not particularly defined, but a method for calculating the remaining battery level by monitoring a change in voltage as is done with a current mobile phone is conceivable. That is, the current voltage is applied to the discharge curve indicating the discharge characteristics of the battery, and the remaining discharge time is calculated.

  Next, the two values acquired above are added together to determine whether it is a movement timing (step S63). That is, when “movement time = remaining discharge time” is satisfied, it is determined as the movement timing. The remaining discharge time may have some allowance, but “=” is used here for the sake of brevity.

  When the movement timing is reached, the battery remaining amount monitoring unit 2052 notifies the movement control unit 207 of a movement trigger (step S64).

  The above is the operation of the service movement process in the mobile terminal 200.

  Next, the service reception process of the server 100 in FIG. 1 will be described. Through the service movement process, the communication control unit 101 receives the service and stores it in the service storage unit 102. At this time, the ID transmitted from the mobile terminal 200 and the received service are stored in association with each other.

  Next, service execution processing of the server 100 will be described. The communication control unit 101 receives a service request from another device and makes an execution request to the service execution unit 103. Here, the service request from another device includes at least the ID of the portable terminal 200 and the requested service ID. The service execution unit 103 executes a corresponding service. Similar to the execution monitoring unit 204 in the mobile terminal 200, the execution monitoring unit 104 monitors service execution and creates history information. That is, here, the number of executions of the object in the service is monitored.

  Here, the request processing from the other device will be described. Since the other device does not know whether the service is currently in the server or the portable terminal 200, the other device requests the portable terminal 200 for the service. If it is determined that a service is not provided despite a request for service to the mobile terminal 200 due to a timeout or the like, a service request is made to the server 100 determined in advance.

  As another example, when it is necessary to connect to the carrier's server as in the case of a cellular phone network connection, the mobile terminal 200 cannot provide the service on the server side of the carrier instead of other devices. A method of determining and switching the request to the server 100 can be considered. In this case, the other device does not need to be aware that it is connected to the server 100 instead of the mobile terminal 200, and seems to receive a service from the mobile terminal 200.

  Next, the return process of the portable terminal 200 will be described. The battery remaining amount monitoring unit 2052 in FIG. 5 monitors the remaining battery amount by the method described above. Then, when the remaining battery level reaches a certain threshold, the remaining battery level monitoring unit 2052 notifies the server 100 of a service provision resumption notification through the communication control unit 101. There is no particular limitation on the threshold setting, and any setting method can be adopted. Whichever method is used, it is necessary to perform processing such as notifying the restart when the capacity is sufficient to provide the service (when fully charged). Upon receiving the restart notification, the server 100 deletes the service held by itself. As a method other than deletion, a method of temporarily disabling the service and enabling it when the mobile terminal 200 becomes unable to provide the service again can be considered. Here, in order to reduce the load on the server side, deletion is performed.

  Thereafter, the server 100 transmits the service history information held by the execution monitoring unit 104 to the mobile terminal 200. The history information passes through the communication control unit 201 to the history information creation unit 2041 in FIG. The history information creation unit 2041 creates and stores new history information by merging the history information in the history information 2042 and the received history information. Thereafter, new movement target information is created by the movement target creation unit 2043. Through the above processing, it is possible to reflect the history information executed on the server side.

  Next, the effect of this embodiment will be described.

  According to the present embodiment, since the service provided by the mobile terminal 200 is moved to the server 100, the server 100 can provide the service even when the mobile terminal 200 cannot provide the service.

  As described above, the first problem described in the column “Problems to be solved by the invention” can be solved, and the first object of the present invention can be realized.

  In the present embodiment, the object in the service to be moved is determined, the network state is monitored, the time required for movement is calculated from these values, and the movement time is referenced by referring to the time required for movement and the remaining battery level. Since a series of operations of determining the timing of the system is automatically performed, it is possible to move the service at an appropriate timing without the user being aware of it.

  As a result, the first problem described in the column “Problems to be solved by the invention” can be solved, and the first object of the present invention can be realized.

  In the operation of the best mode for carrying out the present invention, when the server 100 executes a service, the execution monitoring unit 104 describes the number of executions as history information. However, the services transmitted from the mobile terminal 200 are only objects that are likely to be used. Therefore, if another object is requested, the service cannot be provided and the number of executions cannot be counted. Therefore, the execution monitoring unit 104 may consider not only the execution count but also the miss hit count as a history. For example, assume that service A in FIG. 3 is moved to the server 100 and executed. At this time, if “service_a1.data” is referenced, it can be counted, but if “service_a2.data” is referenced, it cannot be counted. Therefore, when “service_a2.data” is referred to, a history is recorded as the number of miss hits. Thereafter, new history information can be created using the number of misses as the number of executions in the merge processing of history information when the service is resumed on the mobile terminal 200 side. As a result, an object with a high number of miss-hits (an object that is likely to be used) may become a movement target at the next movement.

  Further, in the operation of the best mode for carrying out the present invention, the network state monitoring unit 2051 monitors the communication speed with the current base station, and calculates the average value. However, not only this method but also a method of negotiating can be considered. That is, the necessary communication speed is calculated from the size of the object to be moved in the movement information database 206 and the remaining battery level, and negotiated with the current base station. For example, assuming that the size of the moving object is 3 MB (megabytes) and the remaining discharge time calculated by the above-described method from the remaining battery capacity is 1 minute (60 seconds), “3 * 8 * 1024/60 = 409.6 (1 byte = 8 bits, converted to M = 1024K (kilo)), which is about 410 Kbps (bit second). For this reason, the base station is requested to have a communication speed of 410 Kbps or higher.

  Furthermore, in the operation of the best mode for carrying out the present invention, the battery remaining amount monitoring unit 2052 determines the movement timing from the movement time and the remaining battery amount in the movement information database 206 in the service movement timing detection process. It was. Although the travel time is calculated from the state of the network, since the present invention assumes a wireless network, communication may become unstable due to the characteristics of the wireless network. In that case, there are cases where all the movement target objects cannot be transmitted. In order to prevent such a situation, the movement timing may be widened. In the previous example, we mentioned the method of separating the required object and the optional object, but even if the optional object could not be sent, the object could be classified so that the service can be executed only with the required object. Good. If the essential object cannot be transmitted, the service cannot be executed. However, since the travel time is calculated including the option object, a margin can be provided.

  Furthermore, in the operation of the best mode for carrying out the present invention, the remaining battery level monitoring unit 2052 calculates the remaining battery level using the voltage and the discharge curve in the service movement timing detection process. However, depending on the state of the operating process, the voltage may change regardless of the remaining battery level, and therefore an appropriate value may not be calculated. For this reason, when preparing a process state and a discharge curve corresponding to the process state and measuring the remaining battery level, a process monitoring unit (not shown) first acquires the process state, and a discharge curve corresponding to the process state. It is possible to calculate an accurate value by referring to.

  Further, in the operation of the best mode for carrying out the present invention, the server 100 that has received the notification of resumption in the return processing of the mobile terminal 200 has deleted the service held by itself. Alternatively, the data may be retained after the return process. For example, as described above, a method of temporarily disabling the service can be considered. In this case, the server 100 needs a means for determining a request. FIG. 7 shows an embodiment having a request determination unit 105 as means for determining a request. Next, the operation of the request determination unit 105 will be described. When there is a service request from another device, the request determination unit 105 determines whether the mobile terminal 200 can provide the service. Specifically, it is determined that the service cannot be provided until a service restart notification is received from the mobile terminal 200. Further, even after receiving the service resumption notification, it is determined that the mobile terminal 200 cannot provide the service due to reasons such as inability to connect to the network. Accordingly, it is possible to determine that the service execution is performed by the server 100, and the service can be provided by the server 100 even when the mobile terminal 200 cannot provide the service.

  Next, the operation of the best mode for carrying out the present invention will be described using specific examples.

  In this embodiment, a content providing service from the mobile phone A to the mobile terminal B will be described as an example. The mobile phone A has the same configuration as that of the mobile terminal 200 according to the embodiment of the present invention. The mobile terminal B can refer to the content in the mobile phone A by accessing the mobile phone A via the carrier's server.

  The content providing service entity is composed of (1) a Web server program, (2) an HTML file, and (3) content. Here, the content refers to a sound file or an image file. This is shown in FIG. A line connecting each node indicates a link relationship. That is, “index.html” indicating the top page is linked from the Web server program (webserv.prog), and “IMG01.img”, “a.html”, “b.html” is linked from “index.html”. "Indicates that they are linked. Furthermore, “b.html” indicates that “c.html” and “IMG02.img” are linked. FIG. 9 shows the top page of the content providing service. The content providing service can be regarded as one service in FIG. 8 as a whole.

  The movement information creation process in this embodiment will be described. In the mobile phone A, the execution monitoring unit 2041 in FIG. 4 monitors the execution of the content providing service and creates history information. The created history information is shown in FIG.

  Next, the movement target creation unit 2043 extracts a movement target object from the history information. Here, it is assumed that “reference count 5 times × service activation count” is set as the extraction condition threshold. If the service is started for the first time, “5 times of reference” is evaluated, and the movement target is a white object in FIG. That is, “a.html” and “c.html” whose reference count is less than 5 are not moved.

  As for the network state, it is assumed that “1 Mbps” is set by the method described above. As described above, the movement control unit 207 in FIG. 1 calculates the movement time from the movement target object and the network state. In order to calculate the movement time, the size of the object to be moved is required. Therefore, the size is calculated by referring to the substance of the object in the service storage unit 202. For example, when the OS being used is Linux (registered trademark), a file structure is acquired by using the stat function, and the file size in the file structure is acquired. If, for example, the size is calculated as “22.5 MB” by this method, as described above, the movement time is “22.5 / 1 * 8 = 180 (converted by 1 byte = 8 bits)” and “180”. Second = 3 minutes ". Thus, the movement information is as shown in FIG.

  Next, the movement timing detection process and the service movement process will be described. As described above, the battery remaining amount monitoring unit 2052 in FIG. 5 detects the movement timing based on the movement time and the remaining battery amount. Here, the battery remaining amount monitoring unit 2052 calculates a voltage necessary for the travel time from the discharge curve. In this embodiment, as shown in FIG. 13, it is assumed that the voltage required for the movement time of 3 minutes is “0.5 V”. Accordingly, when the battery remaining amount monitoring unit 2052 detects “0.5 V”, it determines that it is the movement timing, and notifies the movement control unit 207 of the movement timing. The movement control unit 207 refers to the movement target object in the service information database 206 and transmits the target object to the communication carrier server through the communication control unit 201.

  Next, a description will be given of service execution in a telecommunications carrier's server (hereinafter referred to as “server”) after moving the service. The mobile phone B tries to access the mobile phone A via the server as before. The server determines that the mobile phone A cannot provide the service because the content providing service of the mobile phone A is held by itself, and activates the content providing service held in the service storage unit 102 by itself. Therefore, the mobile phone B can receive the content providing service as before. Here, since the number of moved objects is limited, a service cannot be provided when an object that has not moved is referenced. In this case, for example, an error message is output. The execution monitoring unit 104 also keeps a reference to an object that has not moved, and creates history information as shown in FIG.

  Next, the return process of the mobile phone A will be described. In the present embodiment, the service is resumed when the battery capacity reaches “50%” as a condition for restoration. The remaining battery level monitoring unit 2052 monitors the remaining battery level by the above-described method, and when it reaches “50%”, notifies the server of service provision resumption through the communication control unit 101.

  The server that has received the restart notification deletes the content providing service held by itself. Thereafter, the created history information (FIG. 14) is transmitted to the mobile phone A. The history information creation unit 2041 of the mobile phone A merges the current history information and the history information received from the server (FIG. 10 + FIG. 14) to create new history information. The created new history information is shown in FIG.

  Thereafter, the movement target creation unit 2043 creates new movement target object information. Since the threshold value of the extraction condition is “reference count 5 times × service activation count” as described above, “reference count 10 times” is the threshold value. Therefore, referring to FIG. 15, “IMG01.img” that was the previous movement target is not the next movement target, and conversely “a.html” that was not the previous movement target is the next movement target. It becomes. This means that an object necessary for providing the service is extracted by monitoring the entire execution of the service. By moving only the service objects that are considered necessary from the execution history, it is possible to reduce the cost required for the movement, the memory load on the server side, and the like, and overall efficient service movement is possible.

  The embodiment of the present invention described above has the following effects.

  The first effect is that a service can be provided even when the mobile terminal cannot provide a service due to insufficient battery capacity.

  The reason is that the service provided by the portable terminal is moved to the server side before the battery capacity becomes insufficient.

  The second effect is that only a necessary program or data can be moved at an appropriate timing without the user of the portable terminal being aware of the remaining battery level and the movement of the service.

  The reason is that a program or data necessary for moving the service is determined, a time required for the movement is calculated from the current network status, and a timing for moving from the current remaining battery level is determined. In this respect, not only simply monitoring the remaining battery level but also taking into account the time required to move the service, it is possible to calculate the movement timing corresponding to each service.

  The third effect is that the service execution history can be measured more accurately.

  This is because the service execution history is measured in consideration of not only the terminal device but also the server execution history and the miss hit rate.

  The fourth effect is that the service can be moved reliably.

  This is because an appropriate movement timing is always calculated instead of monitoring the operation for the first time when an abnormality occurs such as when a data delay occurs.

  Note that the server 100 and the mobile terminal 200 according to the embodiment of the present invention can be realized by hardware, software, or a combination thereof.

  INDUSTRIAL APPLICABILITY The present invention can be applied to uses such as a system for controlling movement of a service and a method thereof in an environment where a service is provided to another device using a portable device.

It is a block diagram which shows the structure of the best form for implementing this invention. It is a flowchart which shows the service movement process in the portable terminal 200 among operation | movement of the best form for implementing this invention. It is a figure which shows the information which the movement information database 206 hold | maintains among the structures of the best form for implementing this invention. It is a block diagram which shows the detail of the execution monitoring part 204 among the structures of the best form for implementing this invention. It is a block diagram which shows the detail of the terminal state monitoring part 205 among the structures of the best form for implementing this invention. It is a flowchart which shows the detection process of the movement timing of a service among the operation | movement of the best form for implementing this invention. It is a block diagram which shows the server 100 which provided the request | requirement judgment part 105 among operation | movement of the other form for implementing this invention. It is a figure which shows the structure of the content provision service in the Example of this invention. It is a figure which shows the top page of the content provision service in the Example of this invention. It is a figure which shows the execution history information of a content provision service in the Example of this invention. It is a figure which shows the object used as movement object among the structures of a content provision service in the Example of this invention. It is a figure which shows the movement information of a content provision service in the Example of this invention. It is a figure which shows the discharge curve of the mobile telephone A in the Example of this invention. It is a figure which shows the execution log information of the content provision service performed in the Example of this invention at the server side. It is a figure which shows the historical information after merging the historical information of the content provision service in the mobile telephone A in the Example of this invention, and the historical information produced on the server side.

Explanation of symbols

100 server 101 communication control unit 102 service storage unit 103 service execution unit 104 execution monitoring unit 105 request determination unit 200 portable terminal 201 communication control unit 202 service storage unit 203 service execution unit 204 execution monitoring unit 2041 history information creation unit 2042 history information 2043 Movement target creation unit 205 Terminal state monitoring unit 2051 Network state monitoring unit 2052 Remaining battery power monitoring unit 206 Movement information database 207 Movement control unit

Claims (30)

A server, and a terminal device capable of communicating with the server,
The terminal device is
A movement information database for storing movement information relating to movement of services, which is a function composed of programs, data, or both;
Battery remaining capacity monitoring means for monitoring the remaining battery capacity of the terminal device;
Terminal status monitoring means for detecting the movement timing of the service from the movement information and the remaining battery power;
Communication control means for moving a service to the server,
The server is
Service storage means for storing a service transmitted from the terminal device;
A service execution means for executing a service when a service request is received from another device;
A service mobility control system comprising: The movement information stored in the movement information database is provided in the terminal.
History information creating means for monitoring the execution of services in the terminal device and creating history information;
A movement target creating means for determining a movement target object that actually moves from among the objects constituting the movement target service from the history information;
Network status monitoring means for monitoring the network status;
A means for calculating a time required to move a service from the object to be moved and the network state,
The server is
Execution monitoring means for monitoring service execution in the server and creating history information;
Communication control means for transmitting the created history information to the terminal device;
The service mobility control system according to claim 1, further comprising:   The service movement control system according to claim 1, wherein the history information includes a service execution history performed on the terminal device side and a service execution history performed on the server side.   The service movement control system according to any one of claims 1 to 3, wherein a service to be moved is determined based on the history information and a predetermined threshold value.   The history information in the server is created by adding a service that could not be provided to the history information as a miss hit rate in addition to the service execution history provided when a service request was received from another device. The service mobility control system according to any one of claims 1 to 4, wherein   The battery remaining amount monitoring means monitors the state of the currently operating process, thereby changing the state of the battery resulting from the change in the state of the process and the state of the battery resulting from the consumption of the battery. The service movement control system according to any one of claims 1 to 5, wherein the remaining battery level is calculated after identifying the change. The terminal device of the service mobility control system comprising a server and a terminal device capable of communicating with the server,
A movement information database for storing movement information relating to movement of services, which is a function composed of programs, data, or both;
Battery remaining capacity monitoring means for monitoring the remaining battery capacity of the terminal device;
Terminal status monitoring means for detecting the movement timing of the service from the movement information and the remaining battery power;
Communication control means for moving services to the server;
A terminal device comprising: The movement information stored in the movement information database is included in the terminal device.
History information creating means for monitoring the execution of services in the terminal device and creating history information;
A movement target creating means for determining a movement target object that actually moves from among the objects constituting the movement target service from the history information;
Network status monitoring means for monitoring the network status;
The terminal device according to claim 7, wherein the terminal device is created by means for calculating a time required to move a service from the movement target object and the network state.   The time required for the movement of the service is calculated from the size of the object to be moved and the remaining battery level, and the communication speed is negotiated with the server based on the calculated time required for the movement. Item 9. The terminal device according to Item 7 or 8. The server of a service mobility control system comprising a server and a terminal device capable of communicating with the server,
When a request for a service, which is a function composed of a program, data, or both, is received from another device, a request determination means for determining a request is provided.
If it is determined that the terminal device can provide a service, the service request from the other device is transferred to the terminal device,
When the terminal device determines that the service cannot be provided, the server executes a service stored in the terminal device.   The server according to claim 10, wherein the determination unit determines that the terminal device cannot provide the service because the service stored in the terminal device is also stored.   The server according to claim 10, wherein the determination unit determines that the terminal device cannot provide a service because the terminal device cannot be connected. A system comprising a server and a terminal device capable of communicating with the server,
Preparing a movement information database in which the terminal device stores movement information relating to movement of a service, which is a function constituted by a program, data, or both;
A battery remaining amount monitoring step in which the terminal device monitors the remaining battery amount of the terminal device; and
A terminal state monitoring step in which the terminal device detects a movement timing of a service from the movement information and the remaining battery capacity;
A communication control step in which the terminal device moves a service to the server;
A service storage step in which the server stores a service transmitted from the terminal device;
A service execution step in which the server executes a service when a service request is received from another device;
A service mobility control method comprising: The movement information stored in the movement information database is:
A history information creating step in which the terminal monitors execution of a service in the terminal device and creates history information;
A moving target creation step in which the terminal determines a moving target object that actually moves from among the objects constituting the moving target service from the history information;
A network state monitoring step in which the terminal monitors a network state;
The terminal calculates a time required for moving a service from the movement target object and the network state,
An execution monitoring step in which the server monitors execution of services in the server and creates history information;
A communication control step in which the server transmits the created history information to the terminal device;
The service mobility control method according to claim 13, further comprising:   The service movement control method according to claim 13 or 14, wherein the history information includes a service execution history performed on the terminal device side and a service execution history performed on the server side.   The service movement control method according to any one of claims 13 to 15, wherein a service to be moved is determined based on the history information and a predetermined threshold value.   The history information in the server is created by adding a service that could not be provided to the history information as a miss hit rate in addition to the service execution history provided when a service request was received from another device. The service movement control method according to any one of claims 13 to 16, wherein the service movement control method is provided.   The battery remaining amount monitoring step monitors the state of the currently operating process, thereby changing the state of the battery due to the change in the state of the process and the state of the battery due to the battery being consumed. The service movement control method according to any one of claims 13 to 17, wherein the remaining battery level is calculated after identifying the change. The terminal device of the service mobility control system comprising a server and a terminal device capable of communicating with the server,
Preparing a movement information database for storing movement information relating to movement of services, which is a function composed of programs, data, or both;
A battery remaining amount monitoring step in which the terminal device monitors the remaining battery amount of the terminal device; and
A terminal state monitoring step in which the terminal device detects a movement timing of a service from the movement information and the remaining battery capacity;
A communication control step in which the terminal device moves a service to the server;
A service mobility control method comprising: The movement information stored in the movement information database is:
A history information creation step in which the terminal device creates history information by monitoring execution of a service in the terminal device;
A moving target creation step in which the terminal device determines a moving target object that actually moves from among the objects constituting the moving target service from the history information;
A network state monitoring step in which the terminal device monitors a network state;
The service movement control method according to claim 19, wherein the terminal device is created by calculating a time required for the movement of the service from the movement target object and the network state.   The terminal device calculates a time required for service movement from the size of the object to be moved and the remaining battery level, and negotiates a communication speed with the server based on the calculated time required for the movement. The service movement control method according to claim 19 or 20, characterized in that: The server of a service mobility control system comprising a server and a terminal device capable of communicating with the server,
When a request for a service, which is a function composed of a program, data, or both, is received from another device, a request determination step for determining the request is provided.
When the server determines that the terminal device can provide a service, the service request from the other device is transferred to the terminal device;
A service mobility control method comprising: executing a service stored in the terminal device when the terminal device determines that the service cannot be provided.   23. The service movement control method according to claim 22, wherein the determination step determines that the terminal device cannot provide the service because the service stored in the terminal device is also stored.   23. The service movement control method according to claim 22, wherein the determination step determines that the terminal device cannot provide a service because the terminal device cannot be connected. The terminal device of the service mobility control system comprising a server and a terminal device capable of communicating with the server,
A movement information database for storing movement information relating to movement of services, which is a function composed of programs, data, or both;
Battery remaining capacity monitoring means for monitoring the remaining battery capacity of the terminal device;
Terminal status monitoring means for detecting the movement timing of the service from the movement information and the remaining battery power;
Communication control means for moving services to the server;
A service movement control program for causing a computer to function as a terminal device. The movement information stored in the movement information database is included in the terminal device.
History information creating means for monitoring the execution of services in the terminal device and creating history information;
A movement target creating means for determining a movement target object that actually moves from among the objects constituting the movement target service from the history information;
Network status monitoring means for monitoring the network status;
26. The service movement control program according to claim 25, which is created by means for calculating a time required to move a service from the movement target object and the network state.   The time required for the movement of the service is calculated from the size of the object to be moved and the remaining battery level, and the communication speed is negotiated with the server based on the calculated time required for the movement. Item 27. The service movement control program according to Item 25 or 26. The server of a service mobility control system comprising a server and a terminal device capable of communicating with the server,
When a request for a service, which is a function composed of a program, data, or both, is received from another device, a request determination means for determining a request is provided.
If it is determined that the terminal device can provide a service, the service request from the other device is transferred to the terminal device,
A service movement control program for causing a computer to function as a server, wherein the terminal device executes a service stored in the terminal device when the terminal device determines that the service cannot be provided.   29. The service movement control program according to claim 28, wherein the determination unit determines that the terminal device cannot provide the service because the service stored in the terminal device is also stored.   29. The service movement control program according to claim 28, wherein the determination unit determines that the terminal device cannot provide a service because the terminal device cannot be connected.

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