JP2007011863A - Apparatus and method for displaying battery remaining capacity warning for mobile communication apparatus, program, and storage medium - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an apparatus for displaying battery remaining capacity warning for mobile communication apparatuses, which allows users to surely perform processing in secured websites. <P>SOLUTION: In the apparatus for displaying battery remaining capacity warning 10, a security level determination means 1 determines the security level of an accessed page, and a battery voltage detection means 2 detects the battery voltage for a mobile communication apparatus. A low battery voltage setting means 3 sets a low battery voltage, according to the determined security level for the accessed page through a communication means in use based on a preset low battery voltage configuration table. A battery residual capacity deciding means 4 compares the set low battery voltage with the battery voltage and decides the state of battery remaining capacity. If the battery remaining capacity is in a state of low battery lower than the low battery voltage, a low battery warning display means 5 displays a low battery warning that warns the state of low battery, on a display apparatus. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a remaining battery level warning display device, a remaining battery level warning display method, a program, and a storage medium of a portable communication device, and more particularly to a remaining battery level warning display device of a battery-driven portable communication device.

  Conventionally, a mobile communication device such as a mobile phone detects a battery voltage when the battery is driven, and when a battery voltage reaches a predetermined low battery voltage level, a low-level warning is issued to warn that the remaining battery level is low. A battery warning is displayed or the power of the apparatus is turned off (see, for example, Patent Document 1).

In addition, as a conventional portable communication device, data communication is encrypted to protect the user's security on the Internet (for example, refer to Patent Document 2), and authentication is performed to prevent information leakage at the time of communication authentication. Some systems have been devised (see, for example, Patent Document 3).
JP 2000-047307 A Japanese Patent Laid-Open No. 11-272615 JP 2001-134534 A

  However, in the above-described conventional portable communication device, for example, when it is driven by a power battery, when connecting to the Internet using a communication card to access a secure homepage, for example, at a net shop When purchasing a product or making a transfer in a net bank, a low battery warning is displayed during processing, and the power of the device may be turned off during communication.

  As described above, the conventional mobile communication device has a problem that the user cannot safely perform processing on a homepage with security when driven by a power supply battery.

  In addition, there is a problem in that display contents can be illegally read by a third party in the vicinity by peeping or the like while accessing a secure homepage.

  Therefore, the user has not been able to perform processing safely on a secure homepage using a conventional mobile communication device.

  An object of the present invention is to provide a remaining battery level warning display device, a remaining battery level warning display method, a program, and a storage medium of a portable communication device that allow a user to safely perform processing on a secure homepage. There is.

  In order to achieve the above object, a battery remaining amount warning display device according to claim 1 is a battery remaining amount warning display device of a portable communication device, comprising: a security level determining means for determining a security level of a connected homepage; Battery voltage detection means for detecting the voltage of the power supply battery of the portable communication device, low battery voltage setting means for setting a low battery voltage based on the security level determined by the security level determination means, and the low battery voltage A battery remaining capacity determining means for comparing the low battery voltage set by the setting means with the voltage of the power battery detected by the battery voltage detecting means to determine the remaining state of the power battery; and the battery remaining capacity determination According to the determination result of the remaining state of the power battery by the means Characterized in that it comprises a warning display means for displaying the Tteri level warning on a display device of the portable communication device.

  According to a second aspect of the present invention, there is provided a battery remaining amount warning display device according to the first aspect, wherein the battery remaining amount warning display device is determined by a communication unit determining unit that determines a communication unit of the portable communication device and the communication unit determining unit. A consumption current amount calculating means for calculating a consumption current amount consumed during communication of the portable communication device based on a determination result of the communication means, a consumption current amount calculated by the consumption current amount calculation means, and the set A communicable time calculating means for calculating a communicable time of the portable communication device from the low battery voltage and the detected voltage of the power battery until the power battery reaches the set low battery voltage; And further comprising a communicable time display means for displaying the communicable time calculated by the possible time calculating means on the display device. .

  The battery remaining amount warning display device according to claim 3 is the battery remaining amount warning display device according to claim 1 or 2, wherein the brightness adjustment is performed to adjust the luminance of the backlight of the display device based on the determined security level. The apparatus further comprises means.

  The battery remaining amount warning display method according to claim 4 is a battery remaining amount warning display method for a portable communication device, wherein a security level determining step for determining a security level of a homepage being connected, and a power source battery for the portable communication device A battery voltage detecting step for detecting the voltage of the battery, a low battery voltage setting step for setting a low battery voltage based on the security level determined by the security level determining step, and a low battery set by the low battery voltage setting step A battery remaining amount determining step of comparing the voltage and the voltage of the power battery detected in the battery voltage detecting step to determine a remaining state of the power battery, and a remaining amount of the power battery by the battery remaining amount determining step In the judgment result of the state Flip characterized in that it comprises a warning display step of displaying the remaining battery capacity warning to the display device of the portable communication device.

  The program according to claim 5 is a program for causing a computer to execute a battery remaining amount warning display method of a mobile communication device, a security level determination module for determining a security level of a connected homepage, and a power source of the mobile communication device A battery voltage detection module for detecting a battery voltage; a low battery voltage setting module for setting a low battery voltage based on a security level determined by the security level determination module; and a low voltage set by the low battery voltage setting module. A battery remaining amount determining module that compares a battery voltage and a voltage of the power battery detected by the battery voltage detecting module to determine a remaining state of the power battery, and a battery remaining amount determining module Characterized in that it comprises a warning display module for displaying a battery level warning on a display device of the portable communication device in response to the serial power source battery of the determination result of the toner status.

  A storage medium according to claim 6 is a computer-readable storage medium storing a program for causing a computer to execute a battery remaining amount warning display method of a mobile communication device, and the program sets a security level of a connected homepage. A security level determination module for determining, a battery voltage detection module for detecting a voltage of a power supply battery of the portable communication device, and a low battery voltage setting for setting a low battery voltage based on the security level determined by the security level determination module A battery for comparing the low battery voltage set by the low battery voltage setting module and the voltage of the power battery detected by the battery voltage detection module to determine the remaining state of the power battery. And a warning display module for displaying a battery remaining amount warning on a display device of the portable communication device in accordance with a determination result of the remaining state of the power battery by the battery remaining amount determining module. And

  According to the battery remaining amount warning display device according to claim 1, the battery remaining amount warning display method according to claim 4, the program according to claim 5, and the storage medium according to claim 6, the security level of the connected homepage Is detected, the voltage of the power supply battery of the mobile communication device is detected, and the low battery voltage is set based on the determined security level. Next, the set low battery voltage is compared with the detected power battery voltage to determine the remaining state of the power battery. Then, a battery remaining amount warning is displayed on the display device of the portable communication device according to the determination result of the remaining state of the power battery. In this manner, the low battery voltage is set according to the security level of the homepage being connected, and the battery remaining amount warning is displayed according to the low battery voltage and the detected voltage of the power battery. For this reason, when the mobile communication device accesses a secure homepage, a low battery warning can be displayed with sufficient voltage left for processing on the homepage, and the power of the device can be Occurrence of accidents such as turning off can be prevented. Therefore, it is possible to allow a user to safely perform processing on a secure homepage.

  According to the low battery warning display device of the second aspect, the communication means of the mobile communication device is discriminated, and the current consumption amount consumed during communication of the mobile communication device is calculated based on the discrimination result. Next, the communicable time of the portable communication device until the power battery reaches the low battery voltage is calculated from the calculated current consumption amount, the set low battery voltage, and the detected power battery voltage. . Then, the calculated communicable time is displayed on the display device. For this reason, the user can know the communicable time of the portable communication device until the low battery voltage is reached according to the communication means of the portable communication device, and can know the more accurate remaining state of the power battery. . Therefore, it is possible to allow the user to perform processing more safely on the home page with security.

  According to the battery remaining amount warning display device of the third aspect, the luminance of the backlight of the display device is adjusted based on the determined security level. For this reason, for example, the backlight of the display device can be turned off while accessing a secure homepage, and the backlight brightness can be adjusted so that the display content is difficult for a third party to see. Therefore, it is possible to allow a user to perform processing more safely on a secure homepage.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a block diagram showing a schematic configuration of a remaining battery level warning display device of the mobile communication device according to the first embodiment of the present invention.

  As shown in FIG. 1, a battery remaining amount warning display device 10 according to the present embodiment includes a security level determination means 1 for determining a security level of a homepage on the Internet, and a mobile communication device main body such as a mobile phone or a mobile terminal. Battery voltage detection means 2 for detecting a battery voltage of a power supply battery (not shown) included in the battery and low battery voltage setting means 3 for setting the low battery voltage based on information from the security level determination means 1. The low battery voltage setting means 3 sets the low battery voltage using a low battery voltage setting table shown in FIG.

  Further, the battery remaining amount warning display device 10 includes a battery remaining amount determining unit 4 that determines the remaining battery level of the power source battery based on data from the battery voltage detecting unit 2 and the low battery voltage setting unit 3, and a battery remaining amount. Low battery warning display means 5 for displaying a low battery warning on a display device (not shown) such as a liquid crystal display provided in the main body of the mobile communication device according to the determination result of the remaining battery level by the determination means 4. As will be described later, the low battery warning display unit 5 displays a low battery warning on the display device when information indicating that the battery is low is received from the remaining battery level determination unit 4.

  The battery remaining amount warning display device 10 further includes a communication unit determination unit 6, a communicable time calculation unit 7, and a communicable time display unit 8.

  The communication means determination means 6 determines the type of communication card set in the mobile communication device. The communication card is a communication means for the mobile communication device to communicate with an external device, and examples thereof include a wireless LAN card, a wired LAN card, and a PHS card.

  The communicable time calculating means 7 is a communication card that is determined by the communication means determining means 6 and the battery voltage of the power battery detected by the battery voltage detecting means 2, the low battery voltage set by the low battery voltage setting means 3, and the communication card. The communicable time of the mobile communication device is calculated based on the type. The calculated communicable time is the time from the present time at which the portable communication device can communicate with the external device according to the remaining battery level corresponding to the detected battery voltage.

  The communicable time display means 8 displays the communicable time calculated by the communicable time calculation means 7 in the low battery warning display.

  In the battery remaining amount warning display device 10 having the above configuration, when the mobile communication device is connected to the Internet, the security level determination means 1 determines the security level of the accessed home page. Next, the low battery voltage setting means 3 uses the low battery voltage setting table (FIG. 2) to carry it according to the detected security level and the communication means information indicating the type of communication card from the communication means determination means 6. The low battery voltage of the communication device is set, and the remaining battery level determination means 4 compares the battery voltage detected by the battery voltage detection means 2 with the set low battery voltage.

  When the battery voltage is lower than the low battery voltage as a result of the comparison by the remaining battery level determination means 4, the low battery warning display means 5 displays a predetermined low battery warning on the display device, thereby allowing the user via the display screen. Warning that the battery is low. Here, the low battery state is a state where the battery voltage is lower than the low battery voltage.

  Next, the communicable time calculation unit 7 receives the communication unit information from the communication unit determination unit 6, this communication unit information, a table indicating the relationship between the communication unit and the current consumption amount described later in FIG. 4, the battery voltage The communicable time is calculated from the battery voltage detected by the detection unit 2 and the low battery voltage set by the low battery voltage setting unit 3. The communicable time display means 8 displays the calculated communicable time in the low battery warning display.

  FIG. 2 is a diagram showing an example of a low battery setting table provided in the low battery voltage setting means 3 in FIG.

  As shown in FIG. 2, the low battery voltage setting table is a table showing the low battery voltage set according to the security level of a homepage accessed on the Internet. The low battery voltage represents a low battery condition threshold. As shown in FIG. 2, in the low battery voltage setting table, a normal level, a medium security level, and a high security level are set as the security level, and the low battery voltage level includes the low battery 1 voltage level, A low battery 2 voltage level and a forced off voltage level are set.

  The low battery 1 voltage level indicates the low battery voltage for low battery warning in the state of the lowest urgency, that is, in a state where the remaining battery level is still sufficient. The low battery 2 voltage level indicates a low battery voltage for low battery warning in a state where the urgency is higher for the apparatus than the low battery 1 voltage level, that is, when the remaining battery level is not much. The forced off voltage level indicates a low battery voltage in a state where it is determined that the battery voltage is very low and the device can no longer be operated. The portable communication device unconditionally turns off the power supply when the power supply battery reaches this forced off voltage level.

  The normal level indicates access to a normal home page, that is, access to an unsecured home page. During the security level, access to a home page with an intermediate security level, specifically, a home page with a security level using 40-bit encrypted data as an authentication key is shown. The high security level indicates the access to the home page at the highest security level, specifically, using the 128-bit encrypted data as the authentication key.

  Here, when accessing a homepage with security, the data is encrypted when data is exchanged between the WEB server side of the homepage and the client side which is a mobile communication device. This is the key used to decrypt this encrypted data. The homepage has higher security as the number of bits of the authentication key is larger, and can perform communication with a higher security level. This will be described again in FIG.

  As shown in FIG. 2, in the low battery voltage setting table, the low battery 1 voltage level, the low battery 2 voltage level, and the forced off voltage level are in the normal level access to the home page and the security level. It is set to increase in the order of access to the homepage and access to the homepage with the highest security level. That is, as the security level is higher, each low battery voltage level is set to a higher value. For this reason, when accessing a homepage with a high security level, communication is performed safely at a level where the remaining battery level of the mobile communication device is sufficiently high.

  FIG. 3 is a diagram showing a battery voltage discharge curve showing how the battery voltage decreases in the mobile communication device during Internet communication. FIG. 3 is a diagram showing the relationship of the low battery voltage depending on the security level of the home page.

  In FIG. 3, the horizontal axis indicates the usage time of the mobile communication device, the vertical axis indicates the battery voltage (remaining battery capacity), and the battery discharge curve 31 indicates the battery voltage corresponding to the usage time of the mobile communication device. Note that the usage time of the portable communication device is based on the time when the battery voltage of the power battery satisfies the full capacity of the power battery.

  In FIG. 3, LOWBAT 1a is a low battery voltage when accessing a home page with a high security level, and corresponds to the low battery 1 voltage level for the high security level in the low battery voltage setting table of FIG. When a home page with a high security level is accessed, the usage time when the battery voltage drops to LOWBAT 1a is T1.

  LOWBAT 1b is a low battery voltage when accessing a home page in the security level, and corresponds to the low battery 1 voltage level in the low battery voltage setting table of FIG. When the home page in the security level is accessed, the usage time when the battery voltage drops to LOWBAT1b is T2.

  LOWBAT1c is a low battery voltage when accessing a normal home page that is not a security page with security, and corresponds to the low battery 1 voltage level relative to the normal level in the low battery voltage setting table of FIG. The usage time when the battery voltage drops to LOWBAT1c when accessing a normal level homepage is T3.

  LOWBAT2a is a low battery voltage that has a higher degree of urgency than LOWBAT1a when a high security level home page is accessed, and corresponds to the low battery 2 voltage level for the high security level in the low battery voltage setting table of FIG. The usage time when the battery voltage drops to LOWBAT2a when accessing a high security level homepage is T4.

  LOWBAT2b is a low battery voltage that is higher in urgency than LOWBAT1b when a home page in the security level is accessed, and corresponds to the low battery 2 voltage level in the security level in the low battery voltage setting table of FIG. The usage time when the battery voltage drops to LOWBAT2b when accessing a home page in the security level is T5.

  LOWBAT2c is a low battery voltage that is more urgent than LOWBAT1c when accessing a normal homepage that is not a security page, and corresponds to the low battery 2 voltage level relative to the normal level in the low battery voltage setting table of FIG. When the normal level homepage is accessed, the usage time when the battery voltage drops to LOWBAT2c is T6.

  In this way, the low battery voltage is set higher as the user accesses the home page with a high security level, and the low battery voltage is set with a sufficient margin when accessing the home page with a higher security level. For this reason, the lower battery warning can be given to the user earlier as the user accesses the home page with a higher security level. Therefore, it is possible to prevent accidents such as the power being turned off during access.

  In addition, by issuing a low-battery warning with a high degree of urgency according to the security level, it is possible to prevent accidents such as the power being turned off during access by prompting the user to replace the power battery etc. .

  FIG. 4 is a diagram showing the relationship between communication means and current consumption.

  In FIG. 4, the relationship between the communication means and the amount of current consumption is shown in a table format, the type of the communication means is shown in the left column, and the specific current consumption in each communication means is shown in the right column. . As communication means, a wireless LAN card, a PHS card, and a wired LAN card are shown.

  The communicable time calculation means 7 has the table of FIG. 4, and calculates how much communication is possible in each communication means (communication mode) with the current remaining battery capacity based on this table. Specifically, when the capacity of the power battery is 1000 mAh, when the wireless LAN card communicates for 3 hours until now, the remaining battery capacity at the present time is calculated as 1000 mAh−200 mA × 3 h (hours) = 400 mAh. The At this time, if the communication means is changed from the wireless LAN card to the PHS card, the remaining communicable time is 10% of the total battery capacity when the forced off voltage level at which the portable communication device becomes unusable. , (400 mAh−1000 mA × 0.1) ÷ 150 mA = 2 h (hours). In this case, about 2 hours is a time during which communication can be performed by the PHS card.

  FIG. 5 is a diagram illustrating an example of a communicable time under each communication environment.

  In FIG. 5, the battery voltage at the current time (for example, 12:00), the low battery voltage (forced off voltage), and the time until communication is disabled based on the low battery voltage, that is, the battery voltage from the current time becomes the forced off voltage. The time until is shown for each communication environment. In FIG. 5, the horizontal axis indicates time, and the vertical axis indicates voltage.

  The battery voltage curve 51 shows the relationship between the battery voltage and the time when a home page at a normal level is accessed using a PHS card as a communication means. In the battery voltage curve 51, the voltage Vc1 is the current battery voltage, and the voltage Ve1 is a forced off voltage. The time Te1 is a time until the battery voltage changes from the current voltage Vc1 to the forced off voltage Ve1. That is, the time Te1 indicates the communicable time of the mobile communication device from the current time in the communication environment.

  Similarly, the battery voltage curve 52 shows the relationship between the battery voltage and the time when accessing a home page in the security level using a wired LAN card as a communication means. In the battery voltage curve 52, the voltage Vc2 is the current battery voltage, and the voltage Ve2 is a forced off voltage. The time Te2 is a time until the battery voltage changes from the current voltage Vc2 to the forced off voltage Ve2. That is, the time Te2 indicates the communicable time of the mobile communication device from the current time in the communication environment.

  Similarly, the battery voltage curve 53 shows the relationship between the battery voltage and the time when a high security level homepage is accessed using a wireless LAN card as a communication means. In the battery voltage curve 53, the voltage Vc3 is the current battery voltage, and the voltage Ve3 is a forced off voltage. The time Te3 is a time until the battery voltage changes from the current voltage Vc3 to the forced off voltage Ve3. That is, the time Te3 indicates the communicable time of the mobile communication device from the current time in the communication environment.

  Thus, in the battery remaining amount warning display device 10 according to the present embodiment, a different low battery voltage (forced off voltage) is set for each communication environment, and due to the difference in the set low battery voltage, The communicable time of the mobile communication device in each communication environment is different.

  FIG. 6 is a conceptual diagram showing an operation flow of the mobile communication device when accessing a secure homepage by connecting to the Internet.

  As shown in FIG. 6, when a client accesses the WEB server, the WEB server transmits a server ID (signed public key certificate) to the mobile communication device side, that is, the client side browser (step 601). When the browser receives the server ID, the browser confirms the server ID using the root certificate installed in the browser and performs server authentication (step S602).

  Next, the client notifies the server of the types of ciphers that can be used for encrypting the communication data, and selects the common key cipher with the highest security level that can be used by both clients (step S603). The client generates a common key for the selected common key encryption (step S604), encrypts it with the public key of the server, and transmits it to the server (step S605).

  When the server receives the encrypted common key, the server decrypts it with the private key of the server and extracts the common key (step S606). The client transmits a client certificate and other verification information to the server (step S607), and the server receives the client certificate and verification information and authenticates the client (step S608). When the client can be authenticated at the server, encrypted data communication is started between the portable communication device and the server using the common key (step S609).

  By executing the access process to the security page as described above, the communication security level can be set by selecting the BIT length of the common key. In FIG. 6, a 40-bit or 128-bit BIT length key can be selected as a common key on the mobile communication device side. Therefore, if the server side cannot use a 128-bit common key, the communication security level can be set to the security level by selecting the 40-bit key as the common key, and the server side can set the 128-bit common key. Can be used, the security level can be set to a large security level by selecting a 128-bit key as a common key.

  FIG. 7 is a diagram showing an example of a low battery warning display that the low battery warning display means 5 displays on the display screen.

  In the battery remaining amount warning display device 10, when the battery remaining amount determining unit 4 detects that the detected battery voltage (remaining battery amount) is lower than the set low battery voltage, the low battery warning displaying unit 5 As shown, a low battery warning 73 is displayed on the display screen 72 of the portable communication device 71.

  The low battery warning 73 is a display for warning the user that the battery voltage is lower than the low battery voltage and the remaining battery level is low in the security mode in which a secure home page is accessed. The low battery warning 73 includes a character display 74 for notifying that the remaining battery level is low, a remaining battery level display 75 indicating the remaining battery level, and a security mark indicating a warning display in the security mode. 76. As described above, the low battery warning 73 is configured so that the user can easily recognize that it is a low battery warning during access to the security page.

  FIG. 8 is a diagram showing an example of the communicable time displayed by the communicable time display means 8 in the low battery warning display.

  As shown in FIG. 8, the communicable time when the low battery warning calculated by the communicable time calculating means 7 is displayed is communicated by the communicable time display means 8 in the low battery warning display 81 as shown in FIG. The possible time display 82 is displayed.

  Thus, when the communicable time display means 8 displays the communicable time, the character display is changed to the communicable time display in the low battery warning displayed by the low battery warning display means 5 (FIGS. 7 and 8). reference).

  FIG. 9 is a flowchart of the low battery voltage setting process in the mobile communication terminal.

  This process is started when communication is started. As shown in FIG. 9, first, the security level determination means 1 determines whether or not the access is to a security page that is a secure homepage (step S901). .

  When the access is not to the security page, it is access to the home page at the normal level, so the low battery voltage setting means 3 is the low battery corresponding to the normal level among the low battery voltages corresponding to the communication means being used. The voltage value is retrieved from the low battery setting table of FIG. 2 and set as a low battery voltage (step S902), and this process ends. In this case, in the mobile communication device, communication is performed using a normal low battery voltage setting value.

  On the other hand, if the access is to the security page, the mobile communication device receives the server ID (signed public key certificate) from the accessed WEB server (step S903), and the root certificate installed in the browser Is used to confirm the server ID and perform server authentication (step S904).

  Next, the portable communication device notifies the server of the type of encryption that can be used to encrypt the communication data (step S905), receives information on the type of encryption that can be used by the server, and both the portable communication device and the server. The common key cipher with the highest security level that can be used is selected (step S906). Next, the mobile communication device generates a common key for encryption, encrypts the generated common key with the public key provided in the server, and transmits this to the server (S907).

  Here, when the server receives the encrypted common key, the server decrypts it with the secret key provided in the server and extracts the common key. When the client certificate is sent from the mobile communication device to the server, the server authenticates the mobile communication device, and when authentication is completed, the server starts encrypted data communication with the mobile communication terminal using the common key.

  In step S907, after the mobile communication device transmits the encrypted common key to the server, the security level determination unit 1 detects the key length of the generated common key (S908). Next, the security level determination unit 1 determines the security level of the access page based on the key length of the common key detected in step S908 (step S909). The security level in step S909 is determined by determining whether the key length of the common key detected in step S908 is 40 bits or 128 bits.

  In step S909, if the key length of the detected common key is 40 bits, it is determined that the security level of the access page is in the security level, and the low battery voltage setting unit 3 selects the low battery voltage setting unit 3 corresponding to the communication unit being used. Of the battery voltages, the low battery voltage value corresponding to the security level is searched from the low battery setting table of FIG. 2 and set as the low battery voltage (step S910), and this process is terminated. In this case, in the mobile communication device, communication in the security mode is performed by the low battery voltage setting value in the security level.

  On the other hand, if the key length of the detected common key is 128 bits in step S909, it is determined that the security level of the access page is high, and the low battery voltage setting unit 3 corresponds to the communication unit being used. The low battery voltage value corresponding to the high security level is retrieved from the low battery setting table of FIG. 2 and set as the low battery voltage (step S911), and the process is terminated. In this case, in the mobile communication device, communication in the security mode is performed using a low battery voltage setting value with a high security level.

  As described above, according to the battery remaining amount warning display device 10 of the mobile communication device according to the first embodiment of the present invention, the security level determination unit 1 determines the security level of the access page, and the battery voltage detection unit. 2 detects the battery voltage of the portable communication device. The low battery voltage setting means 3 sets the low battery voltage based on the preset low battery voltage setting table from the security level of the determined access page and the communication means used. Next, the remaining battery level determination means 4 compares the set low battery voltage with the battery voltage to determine the remaining battery level. When it is determined that the low battery state is lower than the low battery voltage, the low battery warning display means 5 displays a low battery warning for warning that the low battery state is present on the display device of the portable communication device. indicate.

  Thus, the battery remaining amount warning display device 10 sets the low battery voltage according to the security level of the access page, and displays the low battery warning according to the low battery voltage and the remaining battery level.

  For this reason, when the mobile communication device accesses a secure homepage, the battery remaining amount warning display device 10 performs a low battery warning display in a state where a sufficient voltage is left for processing on the homepage. It is possible to prevent accidents such as turning off the power of the apparatus during communication.

  Therefore, the battery remaining amount warning display device 10 can enable the user to safely perform processing on a secure homepage.

  Further, according to the battery remaining amount warning display device 10, the communication means determining means 6 determines the communication means of the portable communication device, and the communicable time calculating means 7 is based on the determination result of the communication means and the communication means. A current consumption amount consumed during communication of the mobile communication device is calculated from a table indicating the relationship between the current consumption amounts. Next, the communicable time calculation means 7 can perform communication of the portable communication device until the battery voltage becomes the low battery voltage from the calculated consumption current amount, the set low battery voltage, and the detected battery voltage. Calculate time. Then, the communicable time display means 8 displays the calculated communicable time on the low battery warning display.

  For this reason, according to the battery remaining amount warning display device 10, the user can know the communicable time of the portable communication device until the low battery voltage is reached according to the communication means of the portable communication device, and more accurately. You can know the remaining battery status.

  Therefore, the battery remaining amount warning display device 10 can enable the user to perform processing more safely on a homepage with security.

  Next, a second embodiment of the present invention will be described.

  FIG. 10 is a block diagram showing a schematic configuration of the battery remaining amount warning display device of the mobile communication device according to the second embodiment of the present invention.

  As shown in FIG. 10, the battery remaining amount warning display device 100 according to the present embodiment is different from the battery remaining amount warning display device 10 according to the first embodiment in that the backlight adjustment means 101 and the backlight The only difference is that the light 102 is added. Hereinafter, the same constituent members as those in the first embodiment are denoted by the same reference numerals, and redundant description will be omitted, and only different portions will be described.

  The backlight adjustment unit 101 is configured to be able to adjust the luminance of the backlight 102 of the display screen of the mobile communication device.

  In the remaining battery level warning display device 100 having the above configuration, when the security level determination unit 1 determines that the access page is a secure homepage, the backlight adjustment unit 101 adjusts the luminance of the backlight 102. For example, the backlight 102 is turned off, and the screen state of the display device of the mobile communication device is adjusted so that it is difficult for a third party to peep.

  In this embodiment mode, the display device is a transflective liquid crystal display, and the user can view the screen with external light even when the backlight 102 is turned off. The screen is difficult for others to see. As the transflective liquid crystal display, a known one can be used, and detailed description thereof is omitted.

  As described above, according to the battery remaining amount warning display device 100 according to the second embodiment of the present invention, the backlight adjustment unit 101 adjusts the luminance of the backlight 102 of the display device while accessing the security page. To do.

  For this reason, while accessing the security page, the brightness of the backlight 102 of the display device can be adjusted to make it difficult for a third party to view the display screen. Therefore, it is possible for the user to perform processing more safely on the home page with security.

  Another object of the present invention is to supply a storage medium storing software program codes for realizing the functions of the above-described embodiments to a system or apparatus, and the computer of the system or apparatus (or CPU, MPU, or the like). Is also achieved by reading and executing the program code stored in the storage medium.

  In this case, the program code itself read from the storage medium realizes the functions of the above-described embodiments, and the program code and the storage medium storing the program code constitute the present invention. .

  Examples of the storage medium for supplying the program code include a floppy (registered trademark) disk, a hard disk, a magneto-optical disk, a CD-ROM, a CD-R, a CD-RW, a DVD-ROM, a DVD-RAM, and a DVD. -RW, DVD + RW, magnetic tape, nonvolatile memory card, ROM, etc. can be used. Alternatively, the program code may be downloaded via a network.

  Further, by executing the program code read by the computer, not only the functions of the above-described embodiments are realized, but also an OS (Operating System) running on the computer based on the instruction of the program code Includes a case where the functions of the above-described embodiments are realized by performing part or all of the actual processing.

  Furthermore, after the program code read from the storage medium is written to the memory provided in the function expansion board inserted in the computer or the function expansion unit connected to the computer, the program code is expanded based on the instruction of the next program code. This includes the case where the CPU or the like provided in the expansion board or expansion unit performs some or all of the actual processing and the functions of the above-described embodiments are realized by the processing.

It is a block diagram which shows schematic structure of the battery residual amount warning display apparatus of the portable communication apparatus which concerns on the 1st Embodiment of this invention. It is a figure which shows an example of the low battery setting table with which the low battery voltage setting means in FIG. 1 is provided. It is a figure which shows the discharge curve of the battery voltage showing a mode that a battery voltage reduces at the time of internet communication in a portable communication apparatus. It is a figure showing the relationship between a communication means and current consumption. It is a figure showing an example of the communicable time in each communication environment. It is a conceptual diagram which shows the operation | movement flow of the portable communication apparatus at the time of connecting to the internet and accessing a secure homepage. It is a figure which shows an example of the low battery warning display which a low battery warning display means in FIG. 1 displays on a display screen. It is a figure which shows an example of the communicable time which a communicable time display means in FIG. 1 displays in a low battery warning display. It is a flowchart of the low battery voltage setting process in a portable communication terminal. It is a block diagram which shows schematic structure of the battery residual amount warning display apparatus of the portable communication apparatus which concerns on the 2nd Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Security level discrimination | determination means 2 Battery voltage detection means 3 Low battery voltage setting means 4 Battery remaining charge judgment means 5 Low battery warning display means 6 Communication means discrimination means 7 Communicable time calculation means 8 Communicable time display means 10 and 100 Remaining battery Quantity warning display device 71 Portable communication device 72 Display screen 101 Backlight adjustment means 102 Backlight

Claims (6)

A battery remaining warning display device of a portable communication device,
Security level determination means for determining the security level of the connected homepage;
Battery voltage detection means for detecting the voltage of the power supply battery of the portable communication device;
Low battery voltage setting means for setting a low battery voltage based on the security level determined by the security level determination means;
Battery remaining amount determining means for comparing the low battery voltage set by the low battery voltage setting means and the voltage of the power battery detected by the battery voltage detecting means to determine the remaining state of the power battery;
A battery remaining amount warning, comprising: a warning display unit that displays a battery remaining amount warning on a display device of the portable communication device in accordance with a determination result of the remaining state of the power battery by the battery remaining amount determining unit. Display device. Communication means determining means for determining communication means of the portable communication device;
A consumption current amount calculation means for calculating a consumption current amount consumed during communication of the portable communication device based on a determination result of the communication means determined by the communication means determination means;
The consumption current amount calculated by the consumption current amount calculation means, the set low battery voltage, and the detected power supply battery voltage until the power supply battery becomes the set low battery voltage. Communicable time calculating means for calculating the communicable time of the mobile communication device;
2. The battery remaining amount warning display device according to claim 1, further comprising a communicable time display unit that displays the communicable time calculated by the communicable time calculation unit on the display device.   3. The battery remaining amount warning display device according to claim 1, further comprising a luminance adjusting unit that adjusts the luminance of the backlight of the display device based on the determined security level. A method for displaying a remaining battery warning of a portable communication device, comprising:
A security level determination step for determining the security level of the connected homepage;
A battery voltage detecting step for detecting a voltage of a power supply battery of the portable communication device;
A low battery voltage setting step for setting a low battery voltage based on the security level determined by the security level determination step;
A battery remaining amount determining step of comparing the low battery voltage set by the low battery voltage setting step with the voltage of the power battery detected by the battery voltage detecting step to determine the remaining state of the power battery;
A battery remaining amount warning comprising: a warning display step for displaying a battery remaining amount warning on a display device of the portable communication device in accordance with a determination result of the remaining state of the power source battery in the remaining battery amount determining step. Display method. A program for causing a computer to execute a battery remaining amount warning display method of a portable communication device,
A security level determination module for determining the security level of the connected homepage;
A battery voltage detection module for detecting a voltage of a power supply battery of the portable communication device;
A low battery voltage setting module for setting a low battery voltage based on the security level determined by the security level determination module;
A battery remaining capacity determining module that compares the low battery voltage set by the low battery voltage setting module and the voltage of the power battery detected by the battery voltage detecting module to determine the remaining capacity state of the power battery;
A program comprising: a warning display module for displaying a battery remaining amount warning on a display device of the portable communication device in accordance with a determination result of the remaining state of the power battery by the battery remaining amount determining module. A computer-readable storage medium storing a program for causing a computer to execute a battery remaining amount warning display method of a portable communication device, wherein the program is
A security level determination module for determining the security level of the connected homepage;
A battery voltage detection module for detecting a voltage of a power supply battery of the portable communication device;
A low battery voltage setting module for setting a low battery voltage based on the security level determined by the security level determination module;
A battery remaining capacity determining module that compares the low battery voltage set by the low battery voltage setting module and the voltage of the power battery detected by the battery voltage detecting module to determine the remaining capacity state of the power battery;
A program comprising: a warning display module for displaying a battery remaining amount warning on a display device of the portable communication device in accordance with a determination result of the remaining state of the power battery by the battery remaining amount determining module. Medium.

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