JP2011061561A - Portable terminal device, battery management method for use in the portable terminal device, and battery management control program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a portable terminal device which reinforces a countermeasure and management for generation of heat and generation of smoke of a battery. <P>SOLUTION: In a battery pack 40, a use situation and an environmental situation of a battery 41 are detected by a battery use state detecting means (for example, a battery detecting part 42), and battery use environment information bi representing the use situation and the environmental situation of the battery 41 is generated. In a portable terminal main frame part (for example, a main frame part 30), the battery use environment information bi generated by the battery detecting part 42 of the battery pack 40 is continuously recorded in a storage means (for example, a memory 32) by an information recording control means (for example, a control part 31), and also the battery use environment information bi is read out from the memory 32, and is continuously expanded and recorded in a user card (for example, a USIM card 44). <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a mobile terminal device, a battery management method and a battery management control program used for the mobile terminal device, and a subscriber card such as a USIM (Universal Subscriber Identity Module) card is mounted, and the battery is used as a power source. The present invention relates to a mobile terminal device suitable for application to a mobile phone or the like that performs a predetermined operation, a battery management method and a battery management control program used in the mobile terminal device.

  In recent years, portable terminal devices such as notebook PCs (personal computers) and mobile phones have been required to have a long battery life in order to improve user convenience while miniaturization of the external shape has progressed. Since miniaturization of the outer shape and long battery life are technically contradictory, various problems have arisen as the density of batteries increases. For example, heat generation and smoke generation from batteries such as notebook PCs and mobile phones often occur in the market, and countermeasures are strongly demanded from the viewpoint of PL (Product Liability). Further, in recent mobile terminal devices, for example, a configuration in which an IC card such as a SIM (Subscriber Identity Module) card or a USIM (Universal Subscriber Identity Module) card can be mounted is increasing. The SIM card is a small IC card adopted as a GSM (Global System for Mobile Communication) standard, and includes a storage unit composed of a flash memory and a CPU (Central Processing Unit). .

  The USIM card is a compatible IC card of a SIM card, and is adopted as a standard of IMT (International Mobile Telecommunication) -2000 like a mobile phone adopting W-CDMA (Wideband-Code Division Multiple Access) system. IC card. The USIM card has a storage unit that stores information necessary for the operation of the mobile communication wireless protocol, for example, a mobile device identification number (IMSI; International MobileSubscriber used for mobile terminal control in a wireless section). Identity), subscriber information such as the local phone number, security information such as terminal location information, personal identification number, and various user information (for example, billing information, phone book, outgoing / incoming call history) are stored as essential information. . The USIM card also has an optional function USAT (USIM Application Toolkit) for calculating an authentication value in response to an authentication request from a mobile communication network and an electronic business transaction using SMS (short message service). It is prepared. A user owns his own USIM card and can selectively use a plurality of portable terminal devices to use the plurality of portable terminal devices, which greatly improves convenience.

  For example, as shown in FIG. 8, this type of mobile terminal device is a mobile phone 1, which includes a main body 10 and a battery pack 20. The main body unit 10 includes a control unit 11, a memory 12, a functional unit 13, a SIM-IF (interface) 14, and a USIM card 15. The battery pack 20 includes a battery 21 and a battery detection unit 22.

FIG. 9 is a diagram showing a schematic appearance of the mobile phone 1 of FIG. 8, in which FIG. 9 (a) is a front perspective view, FIG. 9 (b) is a rear perspective view, and FIG. 9 (c) is a battery pack. It is a back surface perspective view at the time of removal.
In the cellular phone 1, as shown in FIG. 1A, the main body unit 10 is provided with a display unit 16, a key switch 17, a structural insertion port 18, and the like. Further, as shown in FIG. 2B, the USIM card 15 is inserted into the main body 10 from the insertion slot 18. Further, as shown in FIG. 2C, the battery pack 20 is configured to be detachable from the main body 10 and is configured to be detached from the main body 10 even when an excessive impact is applied. Yes.

  In this cellular phone 1, the battery detector 22 detects the usage status and environmental status of the battery 21 of the battery pack 20, such as voltage, current, and temperature, and information from the battery detector 22 is used as a control unit of the main body 10. 11 and sequentially stored in the memory 12. This is one example of various measures for improving the safety of the battery 21, and in order to improve the safety, the user is grasped in which operation and environment each battery 21 is used. The goal is that. For example, if the load of the functional unit 13 including the wireless unit or the like reaches an abnormal state under use by an individual user or a heat generation event occurs due to a failure of the battery pack 20, the user is in any operation and environment. By reading out and grasping whether the battery 21 was used from the memory 12, it becomes possible to quickly investigate the cause, and thus prevent the occurrence of a similar event in other users using the device. It becomes possible.

In addition to the above mobile phone, this type of related technology includes, for example, a portable information processing terminal described in Patent Document 1.
In this portable information processing terminal, consumption amount information representing the consumption amount of the battery for each operation pattern operable by the portable information processing terminal is stored in advance by the battery consumption amount storage means. The battery output change storage means stores battery output change information representing a change state of the output voltage value of the battery. The output voltage value of the battery is detected by the voltage detection means, and the change state of the detected output voltage value is stored in the battery output change storage means as battery output change information. The operation pattern detecting means detects an operation pattern in operation at the portable information processing terminal. Based on the consumption information, the battery output change information, and the detected output voltage value and operation pattern, the remaining battery value calculation means calculates the predicted remaining battery value at the current time. Thereby, the remaining battery value is calculated with higher accuracy.

JP 2008-136289 A

However, the related technology has the following problems.
That is, in the mobile phone 1 of FIG. 8, when a plurality of users carry around, the battery usage status and the environmental status of the plurality of users are seamlessly accumulated in the memory 12, and the batteries 21 of the individual users are stored. There is a problem that usage and environmental conditions are not accurately determined. In addition, due to the carelessness of the user, by applying a physical impact from the outside, such as applying a drop impact to the mobile phone 1 or applying bending stress, the electric circuit or electrical parts of the mobile phone 1 are damaged, It may be damaged and cannot be repaired. In this case, the electrical components such as the memory 12 and the electrical circuit thereof are mounted and disposed on the main body 10 and the capacity size of the main body 10 is larger than that of the battery pack 20, so that the physical stress is similarly large, There is a problem that the battery 21 may be damaged more easily and may not be able to read the usage state and environmental state of the battery 21 such as voltage, current, and temperature. In particular, as shown in FIG. 9, the longitudinal direction of the main body 10 is longer than that of the battery pack 20, so that when a load is applied to both ends in the longitudinal direction, the internal electric power is smaller than that of the short battery pack 20. A great deal of stress is applied to circuits and electrical components.

  Moreover, in the portable information processing terminal described in Patent Document 1, the remaining battery value is calculated with high accuracy. However, the configuration is different from the present invention, and the above problem is not improved.

  The present invention has been made in view of the above circumstances, and provides a mobile terminal device with enhanced measures and management against heat generation and smoke generation of a battery, a battery management method and a battery management control program used for the mobile terminal device. It is an object.

  In order to solve the above problems, a first configuration of the present invention is configured to be detachable from a mobile terminal main body and the mobile terminal main body, and a battery is attached to power the mobile terminal main body. The present invention relates to a portable terminal device including a battery pack to be supplied, and a user card is provided for each user to record data for each user, and the battery pack includes a usage status and an environmental status of the battery. Battery usage state detection means for generating battery usage environment information representing the usage status and environmental status of the battery, and the mobile terminal body includes storage means and the battery usage status of the battery pack Information for sequentially recording the battery usage environment information generated by the detection means in the storage means, and for reading out the battery usage environment information from the storage means and sequentially developing and recording it on the user card. It is characterized by having a recording control means.

  According to a second configuration of the present invention, a portable terminal includes a portable terminal main body and a battery pack configured to be detachable from the portable terminal main body, and a battery is attached to supply power to the portable terminal main body. According to a battery management method used for a terminal device, a user card is provided for each user to record data for each user, and in the battery pack, a battery usage state detecting unit uses the battery. A battery usage state detection process is performed for detecting a situation and an environmental status and generating battery usage environment information representing the usage status and environmental status of the battery. In the mobile terminal body, a storage unit is provided, and an information recording control unit is provided. Sequentially records the battery usage environment information generated by the battery usage state detection unit of the battery pack in the storage unit, and reads the battery usage environment information from the storage unit. It is characterized by performing information recording control process for recording and sequentially expanded on the user card Te.

  According to the configuration of the present invention, the usage status and environmental status of each user's battery are recorded and stored in the user card, and the user can use the same battery in any operation and environment by extracting the recorded and stored information. I can understand. For example, when an event of heat generation occurs under the use of an individual user, the usage status and environmental status of the battery can be grasped from the user card of the same user, and the cause can be quickly investigated. As a result, it is possible to prevent a similar event from occurring by another user who uses the mobile terminal device.

It is a block diagram which shows the electric constitution of the principal part of the portable terminal device which is one Embodiment of this invention. FIG. 3 is a rear perspective view of the cellular phone 29 of FIG. 1 when a battery pack is removed. It is a figure which shows the example of the use condition detected by the battery detection part, and an environmental condition. It is a figure which shows the example of the battery use environment information bi recorded on the memory. 3 is a flowchart for explaining the operation of a control unit 31. FIG. 6 is a sequence diagram for explaining an operation between the USIM card 44 and the main body 30. It is a figure which shows the example of the command corresponding to a USAT function. It is a figure which shows the electric constitution of a related mobile telephone. It is a figure which shows the external appearance of the outline of the mobile telephone of FIG.

  The battery use state detection means is configured to generate at least the battery use environment information by detecting voltage, current and temperature of the battery, and the user card is configured to be detachable from the battery pack. A portable terminal device is provided.

In addition, the battery pack is configured to be detached from the mobile terminal body when an impact of a certain level or more is applied in a state where the battery pack is mounted on the mobile terminal body.
The user card is a USIM (Universal Subscriber Identity Module) card, and the information recording control means is based on an application USAT (USIM Application Toolkit) defined for the USIM card. The battery usage environment information is read out from the data, and sequentially developed and recorded on the user card.

  The user card is configured to transmit an information transmission request for requesting transmission of the battery usage environment information recorded in the storage unit to the information recording control unit. The means is configured to read out the battery usage environment information from the storage means and transmit it to the user card together with an information transmission response when the information transmission request is transmitted from the user card. The information recording control means sequentially records the battery usage environment information generated by the battery usage state detection means of the battery pack in the storage means until a preset maximum time, while the maximum time is recorded. When it exceeds, it returns to the initial state and repeats the operation of sequentially overwriting the battery usage environment information on the storage means.

Embodiment

FIG. 1 is a block diagram showing an electrical configuration of a main part of a mobile terminal device according to an embodiment of the present invention.
As shown in the figure, the mobile terminal device of this embodiment is a mobile phone 29, and includes a main body 30 and a battery pack 40. The battery pack 40 is configured to be detachable from the main body unit 30, and includes a battery 41, a battery detection unit 42, a SIM-IF 43, and a USIM card 44, and supplies power to the main body unit 30. The battery 41 is composed of, for example, a lithium ion battery. The battery detection unit 42 detects the usage status and environmental status of the battery 41 and generates battery usage environment information bi representing the usage status and environmental status of the battery 41. In particular, in this embodiment, the battery detection unit 42 detects the voltage, current, and temperature of the battery 41 to generate the battery usage environment information bi. The SIM-IF 43 has an interface function between the main body 30 and the USIM card 44. The USIM card 44 is provided for each user and records data for each user, and is configured to be detachable from the battery pack 40.

  The main body unit 30 includes a control unit 31, a memory 32, and a functional unit 33. The functional unit 33 has various functions such as a wireless unit. The memory 32 is composed of a RAM (Random Access Memory). The control unit 31 is configured by a CPU (Central Processing Unit) as a computer, operates based on a computer-readable battery management control program, and uses the battery usage environment information bi generated by the battery detection unit 42 of the battery pack 40. The battery usage environment information bi is read from the memory 32 sequentially, and is sequentially developed and recorded on the USIM card 44 via the SIM-IF 43. In particular, in this embodiment, the control unit 31 reads out the battery usage environment information bi from the memory 32 based on an application USAT (USIM Application Toolkit) defined for the USIM card 44 and sequentially develops it on the USIM card 44. And record.

  Further, the USIM card 44 transmits an information transmission request for requesting transmission of the battery usage environment information bi recorded in the memory 32 to the control unit 31. Further, when an information transmission request is transmitted from the USIM card 44, the control unit 31 reads the battery usage environment information bi from the memory 32 and transmits it to the USIM card 44 together with the information transmission response. The control unit 31 sequentially records the battery usage environment information bi generated by the battery detection unit 42 of the battery pack 40 in the memory 32 until a preset maximum time. Returning to the state, the operation of sequentially overwriting the battery usage environment information bi in the memory 32 is repeated.

FIG. 2 is a rear perspective view of the cellular phone 29 of FIG. 1 when the battery pack is removed.
In the cellular phone 29, the battery pack 40 is configured to drop off from the main body 30 when an impact of a certain level or more is applied while the battery pack 40 is mounted on the main body 30. Further, the USIM card 44 is inserted into the battery pack 40 through a structural insertion port 45 provided in the battery pack 40. The front perspective view of the cellular phone 29 is substantially the same as FIG.

FIG. 3 is a diagram showing examples of usage status and environmental status detected by the battery detection unit 42, FIG. 4 is a diagram showing an example of battery usage environment information bi recorded in the memory 32, and FIG. 5 is a control unit. FIG. 6 is a sequence diagram for explaining the operation between the USIM card 44 and the main body 30, and FIG. 7 is a diagram showing an example of a command corresponding to the USAT function.
With reference to these drawings, processing contents of the battery management method used for the mobile phone 29 of this embodiment will be described.
In this cellular phone 29, the battery detector 40 detects the usage status and environmental status of the battery 41 in the battery pack 40, and generates battery usage environment information bi representing the usage status and environmental status of the battery 41. (Battery usage state detection process). In the battery usage state detection process, the battery detection unit 42 detects the voltage, current, and temperature of the battery 41 and generates the battery usage environment information bi.

  In the main body 30, the battery usage environment information bi generated by the battery detection unit 42 of the battery pack 40 is sequentially recorded in the memory 32 by the control unit 31, while the battery usage environment information bi is read from the memory 32. It is taken out and sequentially developed and recorded on the USIM card 44 (information recording control process). In this case, the control unit 31 sequentially records the battery usage environment information bi in the memory 32 up to a preset maximum time. When the maximum time is exceeded, the control unit 31 returns to the initial state and returns to the battery usage environment information bi. The operation of sequentially overwriting the memory 32 is repeated.

  The control unit 31 reads the battery usage environment information bi from the memory 32 based on the application USAT defined for the USIM card 44, and sequentially develops and records it on the USIM card 44. According to the application USAT, the USIM card 44 transmits an information transmission request (command “Get Memory”) for requesting transmission of the battery usage environment information bi recorded in the memory 32 to the control unit 31. Is done. When the information transmission request (command “Get Memory”) is transmitted from the USIM card 44 by the control unit 31, the battery usage environment information bi is read from the memory 32 and the information transmission response (command “Terminal Res”). And transmitted to the USIM card 44.

  That is, FIG. 3 shows detection elements detected by the battery detection unit 42. For example, the detection element (detection ID) “ID1” is “voltage”, the detection ID “ID2” is “current”, and the detection ID. “ID3” corresponds to “temperature”. The maximum number of detection elements is “N”, and the ID is a detection ID “IDN”. Also, in FIG. 4, the battery usage environment information bi recorded in the memory 32 is shown, and the ID of the detection element detected at each time interval Δt by the battery detection unit 42 is associated with the accumulated time t in the memory 32. It is recorded in the memory space (IDn, t). As shown in FIG. 5, the control unit 31 first sets the time interval Δt, the maximum value T of the integration time t, and the maximum value N of the number n of detection elements (step A1). Next, the integration time t is set to “0” as “t = 0” (step A2), and the detection ID “ID1” is specified as the number n of detection elements is “n = 1” (step A2). A3).

  Next, the timer is started with “time = 0” (step A4), and the determination is repeated until the time interval Δt is reached (step A5). After the elapse of time and the time interval Δt is reached, it is determined whether or not the time t exceeds the maximum value T (step A6). If the time t does not exceed the maximum value T, it is determined whether or not the number n of detected elements does not exceed the maximum value N (step A7). When the detection element number n does not exceed the maximum value N, the detection ID “IDn” is detected from the battery detection unit 42 (step A9) and stored in the memory space (IDn, t) of the memory 32 (step A10). . Next, the detection element number n is added by +1 (n = n + 1) (step A11), and the next detection element IDn is detected. This process is repeated until the detection element number n reaches the maximum value N, and the detection element IDn is detected one after another.

  When the number n of detected elements exceeds the maximum value N in step A7, the time is advanced by +1 (t = t + 1) (step A8), the timer is started again, and the detected element IDn is again set after the time interval Δt. The detection is repeated (steps A4 and A5). If the time t exceeds the maximum value T in step A6, “t = 0” is set again to time “0” (step A3). That is, when the time t exceeds the maximum value T, the process returns to “t = 0” again, the operation from the time “0” to the maximum value T is repeated, and the detected detection element IDn is stored in the memory space ( IDn, t) is overwritten. Thereby, in the memory space (IDn, t), the process from time “t = 0” to time “t = T” is repeated, and the latest detection element IDn is always continuously recorded and stored.

  FIG. 6 shows a processing procedure between the USIM card 44 and the main body 30. According to this procedure, the memory US 32 organizes and saves the data based on the application USAT function defined for the USIM card 44. The recorded information is written and stored in the USIM card 44. That is, the user attaches his / her USIM card 44 to the SIM-I / F 43 of the battery pack 40. In this state, when the power of the main body 30 is turned on (“Power ON”) (step B1), the power is supplied to the USIM card 44 via the SIM-I / F 43. When the main unit 30 enters the operating state, the main unit 30 first executes a process of reading essential information using the command “Generic Commands” with the USIM card 44. In this case, when the USIM card 44 is supplied with power, first, the basic capability of the USIM card 44, for example, information ATR indicating the data transfer bit rate and transfer protocol is transmitted to the main body 30 (step B2). ).

  The control unit 31 of the main body 30 recognizes the basic ability of the USIM card 44 based on the information ATR sent from the USIM card 44. When recognizing the basic capability, the control unit 31 sends a read request “Read EF-xx” to the USIM card 44 for each information element in order to read the essential information stored in the USIM card 44. For example, when there are five information elements, the control unit 31 sequentially transmits read requests “Read EF-01”,..., “Read EF-05” to the USIM card 44 (steps B3 to B5). The USIM card 44 transmits response data “Res” to the main unit 30 every time it receives the read requests “Read EF-01” to “Read EF-xx” from the control unit 31 (steps B4 to B6). In this way, the essential information is read by the command “Generic Commands”.

  Next, the control unit 31 executes a process for reading arbitrary information using a USAT command. That is, the control unit 31 first notifies the USIM card 44 of information “Terminal Profile” indicating the support capability of the USAT command in the main unit 30 (step B7). When receiving the information “Terminal Profile”, the USIM card 44 returns a response “Res” (step B8). Subsequently, the control unit 31 transmits a command “Fetch” to the USIM card 44 in order to give an opportunity to send a command for performing storage in the memory in the USIM card 44 from the USIM card 44 (step B9). ).

  In response to the command “Fetch” in step B9, the USIM card 44 transmits a command “Get Memory” for saving to the memory in the USIM card 44 to the main unit 30 (step B12). As shown in FIG. 7, the command “Get Memory” includes a command identifier for identifying the command, an address range, and a data size as parameters. When receiving the command “Get Memory”, the control unit 31 of the main body unit 30 determines that the command is a request for sending the detection element IDn of the battery 41 from the command identifier of the parameter and the address range, and is shown in FIG. Information on the memory space is transmitted to the USIM card 44 together with the command “Terminal Res” (step B13). As shown in FIG. 7, the command “Terminal Res” includes a command identifier, a data size, and data itself as parameters. The USIM card 44 that has received the command “Terminal Res” determines from the command identifier that it is the detection element IDn of the battery 41 to be obtained, receives the data, and stores it in the address range. Next, the USIM card 44 returns a message “Res” to the effect that the detection element IDn has been saved to the main body 30 (step B14).

  Further, after sending the command “Fetch” in step B9, the main body 30 immediately sets the timer to “time = 0”, starts the timer (step B10), and the time interval Δt has elapsed. (Step B11), and the next command “Fetch” is transmitted. By repeating such an operation, the latest information in the memory space is transmitted to the USIM card 44 one after another, and the latest detection element of the battery 41 is recorded and stored in the USIM card 44.

  As described above, in this embodiment, the battery detection unit 42 of the battery pack 40 detects the usage status and environmental status of the battery 41, and generates battery usage environment information bi indicating the usage status and environmental status of the battery 41. In addition, the battery usage environment information bi generated by the battery detection unit 42 of the battery pack 40 is sequentially recorded in the memory 32 by the control unit 31 of the main body 30, while the battery usage environment information bi is read from the memory 32. It is taken out and recorded on the USIM card 44 sequentially. As a result, the usage status and the environmental status of each user's battery 41 are recorded and stored in the USIM card 44, and by extracting the recorded and stored information, it is possible to grasp the operation and environment in which the user has used the battery 41 individually. Is done. For example, when an event of heat generation occurs under the use of an individual user, the usage status and environmental status of the battery 41 are grasped from the user's USIM card 44, and a quick cause investigation is possible. As a result, there is an advantage that a similar event is prevented from occurring by other users using the mobile phone 29.

  Further, while the information transmission request (command “Get Memory”) is transmitted from the USIM card 44, the control unit 31 receives the information transmission request (command “Get Memory”) from the USIM card 44. Since the battery usage environment information bi is read from and transmitted to the USIM card 44 together with the information transmission response (command “Terminal Res”), the above advantages can be obtained with a relatively simple configuration. In addition, the battery pack 40 to which the USIM card 44 is attached occupies a small capacity size compared to the main body section 30 occupying a large capacity size of the mobile phone 29, is relatively less susceptible to physical stress, and has a drop impact. Since it has a structure in which it is removed from the main body 30 when it is added, it is possible to avoid a situation in which the usage status and environmental status of the battery 41 such as voltage, current, and temperature cannot be read.

The embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration is not limited to the embodiment, and even if there is a design change without departing from the gist of the present invention, Included in the invention.
For example, the USIM card 44 may be another external storage card. In this case, the USAT function may not be used, and a configuration may be adopted in which necessary commands are implemented by defining an interface.
The mobile terminal device is not limited to a mobile phone, and may be, for example, a notebook PC or a PDA (Personal Digital Assistants).

  The present invention can be applied to all portable terminal devices in which a subscriber card such as a USIM card is mounted and a predetermined operation is performed using a battery as a power source.

29 Mobile phone (mobile terminal device)
30 Main unit (portable terminal main unit)
31 Control unit (information recording control means)
32 memory (storage means)
33 Function part (part of mobile terminal body part)
40 battery pack 41 battery 42 battery detection unit (battery use state detection means)
44 USIM card (user card)
45 Insertion slot (part of battery pack)

Claims (15)

A mobile terminal body,
A portable terminal device configured to be detachable from the portable terminal main body, comprising a battery pack to which a battery is attached and supplies power to the portable terminal main body,
A user card is provided for each user to record the data for each user,
The battery pack is
Battery usage state detection means for detecting battery usage status and environmental status and generating battery usage environment information representing the battery usage status and environmental status;
The mobile terminal body is
Storage means;
The battery usage environment information generated by the battery usage state detection unit of the battery pack is sequentially recorded in the storage unit, and the battery usage environment information is read from the storage unit and sequentially developed and recorded on the user card. And an information recording control means. The battery use state detecting means is
The portable terminal device according to claim 1, wherein the battery usage environment information is generated by detecting at least a voltage, a current, and a temperature of the battery. The user card is
The mobile terminal device according to claim 1, wherein the mobile terminal device is configured to be detachable from the battery pack. The battery pack is
4. The mobile terminal according to claim 1, wherein the mobile terminal is configured to drop off from the mobile terminal body when an impact of a certain level or more is applied in a state where the mobile terminal is mounted on the mobile terminal body. apparatus. The user card is
It consists of a USIM (Universal Subscriber Identity Module) card,
The information recording control means includes
Based on an application USAT (USIM Application Toolkit) defined for the USIM card, the battery usage environment information is read from the storage means, and is sequentially expanded and recorded on the user card. The mobile terminal device according to claim 1, 2, 3, or 4. The user card is
The information recording control unit is configured to transmit an information transmission request for requesting transmission of the battery usage environment information recorded in the storage unit,
The information recording control means includes
6. The battery usage environment information is read from the storage means when the information transmission request is transmitted from the user card, and is transmitted to the user card together with an information transmission response. The portable terminal device described. The information recording control means includes
The battery usage environment information generated by the battery usage state detection unit of the battery pack is sequentially recorded in the storage unit until a preset maximum time, while when the maximum time is exceeded, the initial state is returned. The portable terminal device according to any one of claims 1 to 6, wherein an operation of sequentially overwriting the battery usage environment information on the storage unit is repeated. A mobile terminal body,
A battery management method used in a mobile terminal device configured to be detachable from the mobile terminal body, and comprising a battery pack to which a battery is attached and supplies power to the mobile terminal body,
A user card is provided for each user to record the data for each user,
In the battery pack,
The battery usage state detection means detects the battery usage status and the environmental status, and performs battery usage status detection processing for generating battery usage environment information representing the battery usage status and environmental status,
In the mobile terminal body,
Providing storage means;
An information recording control unit sequentially records the battery usage environment information generated by the battery usage state detection unit of the battery pack in the storage unit, and reads the battery usage environment information from the storage unit to read the user card. A battery management method characterized by performing an information recording control process of sequentially developing and recording the information. In the battery usage state detection process,
9. The battery management method according to claim 8, wherein the battery usage state detection means generates at least the battery usage environment information by detecting the voltage, current and temperature of the battery.   The battery management method according to claim 7, wherein the user card is configured to be detachable from the battery pack.   11. The battery management according to claim 8, wherein the battery pack is dropped from the mobile terminal body when an impact of a certain level or more is applied while the mobile terminal is mounted on the mobile terminal body. Method. The user card is composed of a USIM (Universal Subscriber Identity Module) card,
The information recording control means reads out the battery usage environment information from the storage means based on an application USAT (USIM Application Toolkit) defined for the USIM card, and sequentially develops and records the battery usage environment information on the user card. The battery management method according to claim 8, 9, 10, or 11. The user card transmits an information transmission request for requesting transmission of the battery usage environment information recorded in the storage unit to the information recording control unit;
The information recording control means reads out the battery usage environment information from the storage means when the information transmission request is transmitted from the user card, and transmits it to the user card together with an information transmission response. Item 13. A battery management method according to Item 12.   The information recording control unit sequentially records the battery usage environment information generated by the battery usage state detection unit of the battery pack in the storage unit until a preset maximum time, while the maximum time is exceeded. The battery management method according to any one of claims 8 to 13, wherein the operation of returning to the initial state and sequentially overwriting the storage unit with the battery usage environment information is repeated.   A computer-readable battery management control program for causing a computer to function as the information recording control means according to any one of claims 1 to 7.

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