JP2016063692A - Mobile terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a configuration which can more strongly urge a user to exchange batteries when the batteries are deteriorated.SOLUTION: In a mobile type information code reading device 1, when a predetermined deterioration degree of a battery 49 is detected by a deterioration detection section, controls a display section so as to display charging amount information in a content indicative of a charging amount lower than the charging amount of the battery 49 which is detected by a charging amount detection section, when the charging amount of the battery 49 which is detected by at least the charging amount detection section is a predetermined condition. When the battery 49 is deteriorated to a certain amount, this configuration can strongly urge a user to exchange batteries, since the charging amount information is displayed so as to indicate the charging amount lower than the actual charging amount of the battery 49, under a predetermined condition.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a portable terminal equipped with a battery.

  For mobile terminals driven by a battery, various techniques for informing the user of the deterioration state of the battery have been proposed. For example, in the technology of Patent Document 1, assuming a configuration including a plurality of batteries, the deterioration or failure of each battery is determined based on the battery temperature change rate between adjacent batteries.

JP 2001-313087 A

  By the way, in the existing technology related to a portable terminal equipped with a chargeable / dischargeable battery, there is a concept of trying to grasp the deterioration state of the battery and the life of the battery, but the user is strongly encouraged to replace the battery depending on the situation. There was no thought to do. For this reason, the user often continues to use the battery while understanding the deterioration state of the battery to some extent, and as a result, a situation in which the convenience of the user is lowered is likely to occur.

  For example, when the battery has deteriorated to some extent, it is difficult for the user to intuitively understand the urgency and importance simply by notifying the user of that fact. In many cases, it will continue to be used. In this case, the battery will often continue to be used until it becomes completely unusable, causing the battery to suddenly become unusable at an unexpected timing, or other battery malfunction (such as battery expansion). There was a fear of being.

  The present invention has been made in order to solve the above-described problems, and an object of the present invention is to provide a configuration that can prompt the user to replace the battery more strongly when the battery deteriorates.

The portable terminal of the present invention is
A chargeable / dischargeable battery;
A display unit capable of displaying charge amount information indicating a charge amount of the battery;
A display control unit for controlling display of the charge amount information on at least the display unit;
A charge amount detection unit for detecting a charge amount of the battery;
A deterioration detecting unit configured to detect the degree of deterioration of the battery, and capable of determining whether or not at least the battery has a predetermined degree of deterioration;
With
The display control unit
When the predetermined deterioration degree of the battery is not detected by the deterioration detection unit, the display unit displays the charge amount information with contents indicating the charge amount of the battery detected by the charge amount detection unit. Control
If the predetermined deterioration degree of the battery is detected by the deterioration detection unit, the charge amount detection unit detects at least when the charge amount of the battery detected by the charge amount detection unit is a predetermined condition. The display unit is controlled to display the charge amount information with a content indicating a charge amount lower than a charge amount of the battery.

  According to the first aspect of the present invention, when the predetermined deterioration degree of the battery is detected by the deterioration detection unit, the charge amount detection unit detects at least when the charge amount of the battery detected by the charge amount detection unit is a predetermined condition. The display unit is controlled to display the charge amount information with a content indicating a charge amount lower than the charge amount of the battery. In this configuration, when the battery has deteriorated to a predetermined deterioration level, the charge amount information is displayed so as to indicate a charge amount lower than the actual charge amount of the battery under a predetermined condition. Therefore, when the battery has deteriorated to some extent, the user has a stronger sense that the amount of charge is insufficient, so that the user can replace the battery sooner when the battery becomes deteriorated. This makes it easier to take action.

In the invention according to claim 2, the display control unit has a plurality of charge amount levels determined in advance and level-specific charge amount information corresponding to each charge amount level. Is not detected, the display unit is controlled to display level-specific charge amount information corresponding to the level to which the charge amount of the battery detected by the charge amount detection unit of the plurality of charge amount levels belongs. . Then, when the predetermined deterioration degree of the battery is detected by the deterioration detection unit, charging by level corresponding to a level lower than the level to which the charge amount of the battery detected by the charge amount detection unit among the plurality of charge amount levels belongs The display on the display unit is controlled to display the quantity information.
According to this configuration, when the deterioration of the battery has progressed to some extent, the level-by-level charge amount information can be displayed so as to indicate a level lower than normal. In this way, in the case where the actual charge amount of the battery is in each of a plurality of charge amount levels, the user will know a level lower than the actual charge amount level, and the user will be short of the charge amount. You will have a stronger sense of being.

In a third aspect of the invention, the display control unit is configured such that when the predetermined deterioration degree of the battery is not detected by the deterioration detection unit and the battery charge amount detected by the charge amount detection unit is in a predetermined full charge state. Controls the display unit to display predetermined full charge information as the charge amount information, and when the predetermined deterioration degree of the battery is detected by the deterioration detection unit, the charge amount of the battery detected by the charge amount detection unit When is fully charged, the display unit is controlled to display predetermined low level information indicating a charged state lower than the fully charged state.
According to this configuration, when the deterioration of the battery has progressed to some extent, even when the actual charge amount of the battery is in a fully charged state, it can be indicated at a level lower than that in the fully charged state. Therefore, it is possible to strongly give the user a feeling that it is difficult to fully charge the battery, and the user is more strongly aware of the deteriorated state and is likely to take action to replace the battery at an earlier stage.

In the invention of claim 4, the display control unit is configured to charge the battery when the deterioration detection unit detects a predetermined degree of deterioration of the battery and the charge amount of the battery detected by the charge amount detection unit is fully charged. The display unit is controlled to display predetermined low level information indicating a charging state lower than the full charging state without displaying the full charging information as the amount information.
According to this configuration, when the battery has deteriorated to some extent, the full charge state is not displayed even when the actual charge amount of the battery is the full charge state. Therefore, the user has a feeling that the battery is not fully charged, recognizes the deterioration state more strongly, and easily takes action to replace the battery at an early stage.

In the invention of claim 5, the deterioration detection unit is configured to determine a plurality of stages of deterioration levels as the predetermined deterioration degree of the battery, and to determine which stage of deterioration level the battery belongs to. The charge amount detection is performed when a plurality of charge amount levels are determined in advance and the charge amount information for each level corresponding to each charge amount level is determined and the predetermined deterioration degree of the battery is not detected by the deterioration detection unit. When the battery charge level detected by the unit is fully charged, the display unit is controlled to display level-specific charge amount information corresponding to the full charge information among a plurality of level-specific charge amounts. When the predetermined deterioration degree of the battery is detected by the detection unit and the battery charge amount detected by the charge amount detection unit is in a fully charged state, the deterioration level detected by the deterioration detection unit is detected. The level-specific charge amount information corresponding to Le controls the display unit to display as a low-level information.
According to this configuration, when the deterioration of the battery has progressed to some extent, even when the actual charge amount of the battery is in a fully charged state, it can be indicated at a level lower than that in the fully charged state. Moreover, since the level displayed in place of the full charge information is low level information corresponding to the deterioration level, “a prompt with a high degree of freedom according to the deterioration level” is compared with the configuration in which the low level information is uniformly displayed. Is possible.

In the invention of claim 6, the deterioration detection unit can detect a predetermined deterioration remarkable state as the predetermined deterioration degree of the battery, and the display control unit does not detect the predetermined deterioration degree of the battery by the deterioration detection unit. In this case, when the charge amount of the battery detected by the charge amount detection unit is in a predetermined insufficient charge state, the display unit is controlled to display predetermined charge shortage notification information as the charge amount information, and the deterioration detection unit If a battery deterioration noticeable state is detected and the battery charge level detected by the charge level detector is fully charged, the charge shortage notification information is displayed without displaying the full charge information as the charge level information. The display unit is controlled as follows.
According to this configuration, when the battery is significantly deteriorated, the full charge state is not displayed even when the actual charge amount of the battery is the full charge state, and the insufficient charge notification information is displayed. . Therefore, the user always feels that the lack of charge is notified, recognizes the deterioration state very strongly, and easily takes action to replace the battery at an earlier stage.

In the invention according to claim 7, the deterioration detecting unit detects at least either the total use time or the total use number of the batteries as the degree of battery deterioration.
In this way, it becomes easy to grasp the deterioration state of the battery more accurately based on information that is quantitatively and highly related to the deterioration state, such as the total use time or the total number of uses.

In the invention of claim 8, the deterioration detection unit includes a bulge state detection unit that detects at least a bulge state of the battery as a degree of deterioration of the battery.
In this way, the deterioration state of the battery can be more accurately grasped based on the actual change in the outer shape of the battery.

In the invention of claim 9, the bulging state detection unit includes an irradiation unit that irradiates light toward a predetermined outer wall surface side of the battery, a light receiving unit that receives light from the outer wall surface side of the battery, and light from the light receiving unit. And a determination unit that determines the degree of deterioration of the battery based on the light reception result.
According to this structure, it becomes easy to detect the swelling of the battery which has actually occurred with a simpler structure.

In the invention of claim 10, the irradiating part is arranged so that light from the irradiating part passes in a direction along the outer wall surface at least outside the outer wall surface of the battery.
According to this configuration, when the outer wall surface of the battery bulges, the state of light from the irradiator (the state of light passing near the outer wall surface) is likely to change significantly compared to when the bulge does not occur. The light reception result by the light receiving unit is likely to change. Therefore, it becomes easier to accurately detect the bulge of the battery actually generated based on the light reception result by the light receiving unit.

In the invention of claim 11, a reflecting member having a predetermined structure is disposed on the outer wall surface of the battery, and at least a part of the reflecting member has a reflectance higher than that of the surrounding area adjacent to the reflecting member on the outer surface portion of the battery. A high high reflectivity region is provided.
According to this configuration, when the bulge is generated on the outer wall surface of the battery, the state of light from the irradiation unit (the state of light passing through the vicinity of the outer wall surface) changes more greatly than when the bulge is not generated. This makes it easier to change the light reception result by the light receiving unit. Therefore, it becomes easier to accurately detect the bulge of the battery actually generated based on the light reception result by the light receiving unit.

FIG. 1 is a perspective view schematically showing a mobile terminal according to the first embodiment. FIG. 2 is a perspective view of the mobile terminal of FIG. 1 as viewed from a direction different from that in FIG. FIG. 3 is a perspective view showing how the battery is removed from the portable terminal of FIG. FIG. 4 is a block diagram illustrating the electrical configuration of the mobile terminal of FIG. FIG. 5A is an explanatory diagram conceptually showing the configuration of the battery in the portable terminal of FIG. 1, and FIG. 5B is an explanatory diagram conceptually explaining the terminal structure of the battery. FIG. 6 is an explanatory diagram illustrating a circuit configuration for detecting a deterioration state of the battery in the mobile terminal of FIG. FIG. 7 is a flowchart illustrating the flow of display control processing performed by the mobile terminal of FIG. FIG. 8 is an explanatory diagram illustrating display contents for each charge amount level when the mobile terminal in FIG. 1 is not in the predetermined deterioration state. FIG. 9 is an explanatory diagram for explaining display contents for each charge amount level in the first deterioration state in the mobile terminal of FIG. 1. FIG. 10 is an explanatory diagram illustrating display contents for each charge amount level in the second deterioration state in the mobile terminal of FIG. FIG. 11 is an explanatory diagram for explaining display contents for each charge amount level in the third deterioration state in the mobile terminal of FIG. 1. FIG. 12 is an explanatory diagram conceptually illustrating a partial configuration of the deterioration detection unit in the mobile terminal according to the second embodiment. FIG. 13 is a diagram illustrating a configuration of an irradiation unit and the like in the mobile terminal according to the second embodiment, FIG. 13A is a side view thereof, and FIG. 13B is a front view thereof. 13C is a plan view thereof, and FIG. 13D is a cross-sectional view thereof. FIG. 14A is an explanatory diagram for conceptually explaining a detection state in a state where the battery is not expanded in the mobile terminal of the second embodiment, and FIG. 14B is a detection in a state where the battery is expanded. It is explanatory drawing explaining a state notionally, FIG. 15 is an explanatory diagram schematically illustrating a circuit configuration of the light receiving unit and the related portion in the mobile terminal according to the second embodiment. FIG. 16 is a flowchart illustrating the flow of display control processing performed by the mobile terminal according to the second embodiment.

[First embodiment]
Hereinafter, a first embodiment will be described with reference to the drawings.
(Basic structure of mobile device)
The portable information code reading device 1 (hereinafter also referred to as the information code reading device 1 or the reading device 1) shown in FIGS. 1 to 3 corresponds to an example of a portable terminal and has a longitudinal appearance. An almost half area on one end side is a gripping area, and is configured to be used while being gripped by the user. The information code reader 1 is configured as a portable information terminal that is carried by a user and used in various places, for example, and has a function of reading an information code C such as a barcode or a two-dimensional code. Yes.

  As shown in FIG. 1 to FIG. 3 and the like, the information code reader 1 has a longitudinal shape constituted by assembling an upper case body 10a and a lower case body 10b formed of a synthetic resin material such as ABS resin. An outer case is formed by the case 10. The upper case body 10a is provided with an operation unit 42 such as function keys and numeric keys operated when inputting predetermined information, a display unit (liquid crystal display 46) for displaying predetermined information, and the like. Has been. In the example of FIG. 1, a large portion having a relatively large width is configured in the predetermined first region on one side in the longitudinal direction of the case 10, and a large portion in the predetermined second region on the other side in the longitudinal direction of the case 10. A narrower portion having a relatively narrow width is formed, and the narrow portion functions as an area (gripping portion) gripped by the user. Further, the reading port 3 serving as a passage for illumination light and light from the information code is provided near the front end portion on the one side in the longitudinal direction of the case 10 and on the back surface side in the large portion.

  As shown in FIG. 4, the information code reader 1 mainly includes an optical system such as an illumination light source 21, a light receiving sensor 23, a filter 25, and an imaging lens 27, a memory 35, a control circuit 40, an operation unit 42, and a liquid crystal. It comprises a microcomputer (hereinafter referred to as “microcomputer”) system such as a display 46 and a power system such as a power switch 41 and a battery 49. In addition, these are mounted on a printed wiring board (not shown) or arranged inside the case 10.

  The optical system includes an illumination light source 21, a light receiving sensor 23, a filter 25, an imaging lens 27, and the like. The illumination light source 21 functions as an illumination light source capable of emitting illumination light Lf, and includes, for example, a red LED and a diffusion lens, a condensing lens, and the like provided on the emission side of the LED. In this configuration, the illumination light sources 21 are provided on both sides of the light receiving sensor 23, and the illumination light Lf is directed toward the reading object R through the reading port 3 (FIGS. 2 and 3) formed in the case 10. Can be irradiated. As the reading object R, for example, various objects such as a resin material and a metal material can be considered, and the information code C is formed on the reading object R by printing, direct marking, or the like. The information code C may be a QR code (registered trademark), a data matrix code, a maxi code, other two-dimensional codes, or a one-dimensional code such as a one-dimensional barcode.

  The light receiving sensor 23 is configured to be able to receive the reflected light Lr irradiated and reflected on the reading object R and the information code C. For example, the light receiving element 23 is a solid-state image pickup device such as a C-MOS or CCD. An area sensor arranged in a dimension corresponds to this. The light receiving sensor 23 is mounted on a printed wiring board (not shown) so that incident light incident through the imaging lens 27 can be received by the light receiving surface 23a.

  The filter 25 is an optical low-pass filter that allows passage of light less than or equal to the wavelength of the reflected light Lr and blocks passage of light exceeding the wavelength, and the reading port 3 and the imaging lens formed in the case. 27. Thereby, unnecessary light exceeding the wavelength equivalent of the reflected light Lr is prevented from entering the light receiving sensor 23. In addition, the imaging lens 27 includes, for example, a lens barrel and a plurality of condensing lenses housed in the lens barrel. In this configuration, reflected light that enters the reading port 3 formed in the case. Lr is condensed, and a code image of the information code C is formed on the light receiving surface 23 a of the light receiving sensor 23.

  The microcomputer system includes an amplification circuit 31, an A / D conversion circuit 33, a memory 35, an address generation circuit 36, a synchronization signal generation circuit 38, a control circuit 40, an operation unit 42, a charge amount sensor 43, a deterioration sensor 44, and a liquid crystal display 46. The communication interface 48 and the like. This microcomputer system is configured around a control circuit 40 and a memory 35 that can function as a microcomputer (information processing apparatus), and the image signal of the information code C imaged by the optical system described above is signaled in hardware and software. It can be processed.

  An image signal (analog signal) output from the light receiving sensor 23 of the optical system is input to the amplifier circuit 31, amplified by a predetermined gain by the amplifier circuit 31, and then input to the A / D conversion circuit 33, from the analog signal. Converted into a digital signal. The digitized image signal, that is, image data (image information) is input to the memory 35 and stored in the image data storage area of the memory 35. The synchronization signal generation circuit 38 is configured to generate a synchronization signal for the light receiving sensor 23 and the address generation circuit 36. The address generation circuit 36 is based on the synchronization signal supplied from the synchronization signal generation circuit 38. Thus, the storage address of the image data stored in the memory 35 can be generated.

  The memory 35 is configured by a known storage medium such as a semiconductor memory device, and corresponds to, for example, a RAM, a ROM, and other nonvolatile memories. In addition to the above-described image data storage area, the RAM of the memory 35 is configured to be able to secure a work area and a reading condition table that are used by the control circuit 40 in each processing such as arithmetic operation and logical operation. . The ROM stores in advance a predetermined program that can execute a reading process and the like that will be described later, and a system program that can control each piece of hardware such as the illumination light source 21 and the light receiving sensor 23.

  The control circuit 40 is configured by a microcomputer or the like that can control the information code reader 1 as a whole, and includes a CPU, a system bus, an input / output interface, and the like, and has an information processing function. Various input / output devices (peripheral devices) are connected to the control circuit 40 via a built-in input / output interface. In the configuration of FIG. 2, a power switch 41, an operation unit 42, a charge amount sensor 43, A deterioration sensor 44, a liquid crystal display 46, a communication interface 48, and the like are connected.

  The communication interface 48 functions as an interface for communicating with an external device H provided outside the information code reading device 1 by a known communication method, for example. The communication interface 48 includes, for example, a wireless communication interface that performs wireless communication using a known wireless communication method, and is configured to be able to transmit and receive data to and from the external device H.

  The power supply system includes a power switch 41, a battery 49, and the like. When the power switch 41 managed by the control circuit 40 is turned on and off, the conduction of the drive voltage supplied from the battery 49 to each device and each circuit described above is established. Or shut off is controlled. The battery 49 is configured by a known secondary battery that can generate a predetermined DC voltage, and for example, a lithium ion battery or the like corresponds to this.

(Battery-related configuration)
Next, the configuration of the battery 49 in the reading device 1 and the configuration of parts related thereto will be described. The battery 49 is accommodated in a predetermined space inside the case 10 described above. 2 and 3, a part of the case 10 is provided with a battery lid 10c that can be opened and closed. When the battery lid 10c is opened as shown in FIG. 3, the battery 49 is taken in and out of the case 10. Can be done. The battery 49 has a configuration as shown in FIG. 5A, for example, and a predetermined battery substrate 107 is connected to the battery cell unit 106 that generates electromotive force. As shown in FIGS. 5A and 5B, the battery substrate 107 is provided with a positive electrode 101, a negative electrode 103, and a temperature detection terminal 102 for detecting temperature information. ing. Further, a data terminal 104 for transmitting / receiving data and a clock terminal 105 for transmitting a clock are provided.

  The battery substrate 107 is configured as shown in FIG. 6, for example. A plurality of transistors Tr1 and Tr2 are interposed between the positive electrode portion of the battery cell unit 106 and the positive electrode 101. When at least one of the transistors Tr1 and Tr2 is turned on, the battery is turned on. The positive electrode part of the cell part 106 and the positive electrode 101 are electrically connected. A negative electrode 103 is connected to the negative electrode portion of the battery cell portion 106. In this configuration, for example, when the battery 49 is operated to generate a potential difference (output voltage) between the electrodes 101 and 103, the control IC 112 controls both of the transistors Tr1 and Tr2, and at this time, the positive electrode 101 A predetermined output voltage (battery voltage) is generated between the negative electrode 103 and the negative electrode 103.

  The timer IC 111 measures the time for which the transistors Tr1 and Tr2 are turned on. Every time the time for which the transistors Tr1 and Tr2 are turned on is measured, the measured time is stored in the memory 35. It has come to be. The control IC 112 functions to store the accumulated time in which the transistors Tr1 and Tr2 are in the on state in the memory 35, and for each period in which the transistors Tr1 and Tr2 are in the on state, The measurement time is added to the accumulated time. With such a configuration, the memory 35 stores the total usage time of the battery 49. Here, an example in which the total use time of the battery 49 is stored is shown, but instead of or in addition to this method, the total use count of the battery 49 (the transistors Tr1 and Tr2 are turned on) The number of times (cumulative number) may be stored. Further, the control IC 112 can communicate with the outside using the data terminal 104 and the clock terminal 105, and the total use time (and / or the total use count) of the battery 49 stored in the memory 35. Can be grasped by the control circuit 40. In the configuration of FIG. 6, the battery substrate 107 functions as the deterioration sensor 44.

(Display control processing)
Next, a process for controlling display on the display unit (liquid crystal display 46) (specifically, a process for controlling display of the charge amount information) will be described with reference to FIG. 7 is executed at least when a predetermined start condition is satisfied (for example, when the power is turned on or when a predetermined start operation is performed on the operation unit 42). Confirm the total usage time. Specifically, communication is performed between the control circuit 40 and the battery substrate 107, and the control circuit 40 grasps the total usage time of the battery 49 stored in the memory 35.

  After the process of S10, it is determined whether or not the total usage time of the battery 49 determined in S10 exceeds a predetermined third threshold T3 (S11). If the total usage time of the battery 49 exceeds the third threshold T3, the process proceeds to Yes in S11, and the setting of the battery voltage threshold is changed to the third setting (No. 3) (S12). On the other hand, if the total usage time of the battery 49 does not exceed the third threshold value T3, the process proceeds to No in S11, and whether or not the total usage time of the battery 49 determined in S10 exceeds the predetermined second threshold value T2. (S13). When the total usage time of the battery 49 exceeds the second threshold value T2, the process proceeds to Yes in S13, and the setting of the battery voltage threshold value is changed to the second setting (No. 2) (S14). If the total use time of the battery 49 does not exceed the second threshold value T2, the process proceeds to No in S13, and whether or not the total use time of the battery 49 determined in S10 exceeds a predetermined first threshold value T1. Is determined (S15). If the total usage time of the battery 49 exceeds the first threshold value T1, the process proceeds to Yes in S15, and the setting of the battery voltage threshold value is changed to the first setting (No. 1) (S16). If the total usage time of the battery 49 does not exceed the first threshold value T1, the process proceeds to No in S15, and the process of FIG. Note that the processing in FIG. 7 is performed periodically every time a predetermined condition is satisfied or every predetermined short time after the first processing is executed, and each time this processing is performed, the battery 49 is processed. The total usage time is grasped, and the setting of the battery voltage threshold value can be changed. In this configuration, the first threshold T1 is smaller than the second threshold T2, and the second threshold T2 is smaller than the third threshold T3. That is, T1 <T2 <T3.

  When the setting for displaying the charge amount is the normal setting, icons D1 to D4 corresponding to the charge amount level are displayed as shown in FIG. Each figure of icons D1-D4 is equivalent to an example of charge amount information. Specifically, in a normal state where the total usage time of the battery 49 does not exceed the first threshold value T1 (a state that is not “predetermined deterioration level”), the normal setting as shown in FIG. 8 is performed. When the output voltage of 49 is “full charge state” that is equal to or higher than a first voltage threshold value V1 (for example, 4.1 V), an icon D1 indicating the full charge state is displayed on the liquid crystal display 46. The icon D1 corresponds to an example of “predetermined full charge information”. In the normal setting, in the case of the “first low level state” in which the output voltage of the battery 49 is less than the first voltage threshold V1 and greater than or equal to the second voltage threshold V2 (for example, 3.9 V), the first low level is set. An icon D2 indicating the level state is displayed on the liquid crystal display 46. Further, in the normal setting, in the case of the “second low level state” in which the output voltage of the battery 49 is less than the second voltage threshold value V2 and greater than or equal to the third voltage threshold value V3 (for example, 3.8 V), An icon D3 indicating the level state is displayed on the liquid crystal display 46. Further, in the normal setting, when the output voltage of the battery 49 is in the “third low level state” in which the output voltage is less than the third voltage threshold V3, the icon D4 indicating the third low level state is displayed on the liquid crystal display 46. . In this example, V1> V2> V3.

  Further, when the normal setting is changed to the first setting (No. 1) by the process of S16, the icon display is shifted as shown in FIG. In the first setting, when the output voltage of the battery 49 is “full charge state” that is equal to or higher than a first voltage threshold value V1 (for example, 4.1 V), an icon D1 indicating the full charge state is displayed on the liquid crystal display 46. Instead, the icon D2 indicating the first low-level state is displayed on the liquid crystal display 46. In the first setting, when the output voltage of the battery 49 is a “first low level state” in which the output voltage of the battery 49 is less than the first voltage threshold value V1 and greater than or equal to the second voltage threshold value V2 (for example, 3.9 V), In the normal state, the icon D2 indicating the first low level state is not displayed on the liquid crystal display 46, and the icon D3 indicating the second low level state is displayed on the liquid crystal display 46. Further, in the first setting, when the output voltage of the battery 49 is a “second low level state” in which the output voltage of the battery 49 is less than the second voltage threshold value V2 and greater than or equal to the third voltage threshold value V3 (for example, 3.8 V), In the normal state, the icon D2 indicating the second low level state is not displayed on the liquid crystal display 46, and the icon D4 indicating the third low level state is displayed on the liquid crystal display 46. Note that, in the first setting, the icon D4 indicating the third low level state is displayed on the liquid crystal display 46 even in the “third low level state” where the output voltage of the battery 49 is less than V3.

  Further, when the normal setting is changed to the second setting (No. 2) by the process of S14, the icon display is shifted as shown in FIG. In the second setting, when the output voltage of the battery 49 is “full charge state” that is equal to or higher than V1 (for example, 4.1 V), the icon D1 indicating the full charge state is displayed in the liquid crystal when the normal state is not the predetermined deterioration state. The icon D3 indicating the second low level state is displayed on the liquid crystal display 46 without being displayed on the display 46. In the second setting, in the “first low level state” where the output voltage of the battery 49 is less than V1 and equal to or higher than V2 (for example, 3.9 V), the first is set in the normal state that is not the predetermined deterioration state. The icon D2 indicating the low level state is not displayed on the liquid crystal display 46, and the icon D4 indicating the third low level state is displayed on the liquid crystal display 46. In the second setting, in the case of the “second low level state” in which the output voltage of the battery 49 is less than V2 and not less than V3 (eg, 3.8 V), the second low level state is set in the normal state. The icon D <b> 2 is not displayed on the liquid crystal display 46, but the icon D <b> 4 indicating the third low level state is displayed on the liquid crystal display 46. In the second setting, the icon D4 indicating the third low level state is also displayed on the liquid crystal display 46 even in the “third low level state” where the output voltage of the battery 49 is less than V3.

  Further, when the normal setting is changed to the third setting (No. 3) by the process of S12, the icon display is shifted as shown in FIG. In the third setting, when the output voltage of the battery 49 is “full charge state” that is V1 (eg, 4.1 V) or more, the icon D1 indicating the full charge state is displayed on the liquid crystal display in the normal state that is not the predetermined deterioration state. The icon D4 indicating the third low level state is displayed on the liquid crystal display 46 without being displayed on the display 46. In the third setting, in the case of the “first low level state” in which the output voltage of the battery 49 is less than V1 and equal to or higher than V2 (for example, 3.9 V), the icon D2 indicating the first low level state is displayed on the liquid crystal. The icon D4 indicating the third low level state is displayed on the liquid crystal display 46 without being displayed on the display 46. In the third setting, in the case of the “second low level state” in which the output voltage of the battery 49 is less than V2 and equal to or higher than V3 (eg, 3.8 V), the icon D2 indicating the second low level state is displayed on the liquid crystal. The icon D4 indicating the third low level state is displayed on the liquid crystal display 46 without being displayed on the display 46. Further, in the third setting, the icon D4 indicating the third low level state is displayed on the liquid crystal display 46 even in the “third low level state” where the output voltage of the battery 49 is less than V3. As described above, in the third setting, the icon D4 indicating the state of the lowest charge level is displayed on the liquid crystal display 46 regardless of the state of the battery 49.

(Main effects of this configuration)
In the present configuration, when the predetermined deterioration degree of the battery 49 is detected by the deterioration detection unit, the charge amount is at least when the charge amount of the battery 49 detected by the charge amount sensor 43 (charge amount detection unit) is a predetermined condition. The display unit (liquid crystal display 46) is controlled so as to display the charge amount information with the content indicating the charge amount lower than the charge amount of the battery 49 detected by the sensor 43 (charge amount detection unit). In this configuration, when the battery 49 has deteriorated to a predetermined deterioration level, the charge amount information is displayed so as to indicate a charge amount lower than the actual charge amount of the battery 49 under a predetermined condition. Therefore, when the battery 49 is deteriorated to some extent, the user has a stronger sense that the amount of charge is insufficient, so that the user can replace the battery sooner when the battery 49 becomes deteriorated. It becomes easy to take action to try.

In addition, the display control unit has a plurality of charge amount levels (levels where the output voltage is V1 or more, less than V1, V2 or more, less than V2, V3 or more, and less than V3), and levels corresponding to each charge amount level If different charge amount information (each icon D1, D2, D3, D4 indicating each charge amount level in the normal state) is defined and the predetermined deterioration degree of the battery 49 is not detected by the deterioration detection unit, The display unit (liquid crystal display 46) displays the charge amount information by level corresponding to the level to which the charge amount of the battery 49 detected by the charge amount sensor 43 (charge amount detection unit) of the charge amount levels belongs. The display is controlled (see FIG. 8). When the predetermined deterioration degree of the battery 49 is detected by the deterioration detection unit, the charge amount of the battery 49 detected by the charge amount sensor 43 (charge amount detection unit) among the plurality of charge amount levels belongs. The display of the display unit (liquid crystal display 46) is controlled so as to display the level-specific charge amount information corresponding to the low level (see FIGS. 9 to 11).
According to this configuration, when the deterioration of the battery 49 has progressed to some extent, the level-specific charge amount information (icons D1 to D4) can be displayed so as to indicate a level lower than normal. In this way, in the case where the actual charge amount of the battery 49 is in each of a plurality of charge amount levels, the user knows a level lower than the actual charge amount level, and the user has insufficient charge amount. You will have a stronger sense of being.

Further, the display control unit is configured such that the charge amount of the battery 49 detected by the charge amount sensor 43 (charge amount detection unit) is a predetermined full charge state when the predetermined deterioration degree of the battery 49 is not detected by the deterioration detection unit. In this case (that is, when the battery voltage is V1 or more), the display unit (liquid crystal display 46) is controlled to display predetermined full charge information (icon D1) as the charge amount information, and the deterioration detection unit When the predetermined deterioration degree of the battery 49 is detected, when the charge amount of the battery 49 detected by the charge amount sensor 43 (charge amount detection unit) is in a fully charged state, a charge state lower than the fully charged state is set. The display unit (liquid crystal display 46) is controlled to display predetermined low-level information (for example, information on icons D2, D3, and D4 as shown in FIGS. 9 to 11).
According to this configuration, when the deterioration of the battery 49 has progressed to some extent, even when the actual charge amount of the battery 49 is in a fully charged state, it can be indicated at a level lower than that in the fully charged state. Therefore, it is possible to strongly give the user a feeling that it is difficult to fully charge the battery, and the user is more strongly aware of the deteriorated state and is likely to take action to replace the battery at an earlier stage.

More specifically, the display control unit determines that the charge amount of the battery 49 detected by the charge amount sensor 43 (charge amount detection unit) is fully charged when the deterioration detection unit detects a predetermined deterioration degree of the battery 49. In the case of a state (that is, when the battery voltage is V1 or more), predetermined low level information (icon) indicating a state of charge lower than the full charge state without displaying the full charge information (icon D1) as the charge amount information. The display unit (liquid crystal display 46) is controlled to display any one of D2 to D4.
According to this configuration, when the battery 49 has deteriorated to some extent, the full charge state is not displayed even when the actual charge amount of the battery 49 is the full charge state. Therefore, the user has a feeling that the battery is not fully charged, recognizes the deterioration state more strongly, and easily takes action to replace the battery at an early stage.

In addition, the deterioration detection unit has a plurality of stages of deterioration levels (specifically, the total use time of the battery exceeds T1, exceeds T2, exceeds T2, exceeds T3, exceeds T3 as the predetermined deterioration degree of the battery 49. Level) is determined, and it is possible to determine which level of deterioration the battery 49 belongs to, and the display control unit previously has a plurality of charge amount levels (output voltage is V1 or more, less than V1, V2 or more, V2 Less than V3 or more and less than V3), and charge level information (icons D1 to D4) corresponding to each charge level is determined, and the deterioration detection unit determines a predetermined deterioration level of the battery 49. When the charge amount of the battery 49 detected by the charge amount sensor 43 (charge amount detection unit) is in a fully charged state (when the battery voltage is V1 or more). The display unit (liquid crystal display 46) is controlled so as to display the level-specific charge amount information (icon D1) corresponding to the full charge information among the plurality of level-specific charge amounts, and the deterioration detector detects a predetermined deterioration of the battery 49. When the degree is detected (when the total use time of the battery exceeds T1), when the charge amount of the battery 49 detected by the charge amount sensor 43 (charge amount detection unit) is in a fully charged state (the battery voltage is In the case of V1 or more), the display unit (liquid crystal display 46) is controlled to display the level-specific charge amount information corresponding to the deterioration level detected by the deterioration detection unit as low level information. For example, if the total usage time of the battery exceeds T1 and is equal to or lower than T2, the display is controlled as shown in FIG. 9, and if the total usage time is higher than T2 and equal to or lower than T3, the display is controlled as shown in FIG. If the level exceeds the level, the display is controlled as shown in FIG.
According to this configuration, when the deterioration of the battery 49 has progressed to some extent, even when the actual charge amount of the battery 49 is in a fully charged state, it can be indicated at a level lower than that in the fully charged state. Moreover, since the level displayed in place of the full charge information is low level information corresponding to the deterioration level, “a prompt with a high degree of freedom according to the deterioration level” is compared with the configuration in which the low level information is uniformly displayed. Is possible.

In addition, the deterioration detection unit can detect a predetermined remarkable deterioration state (a state in which the total use time of the battery 49 exceeds T3) as the predetermined deterioration degree of the battery 49, and the display control unit can detect the battery by the deterioration detection unit. When the predetermined deterioration degree of 49 is not detected and the charge amount of the battery 49 detected by the charge amount sensor 43 (charge amount detection unit) is in a predetermined insufficient charge state (when the battery voltage is less than V3). The display unit (liquid crystal display 46) is controlled to display predetermined charge shortage notification information (icon D4) as the charge amount information. On the other hand, when the deterioration detection unit detects a significant deterioration state of the battery 49 (a state in which the total use time of the battery 49 exceeds T3), the charging of the battery 49 detected by the charge amount sensor 43 (charge amount detection unit) When the amount is fully charged, the display unit (liquid crystal display 46) displays the insufficient charge notification information (icon D4) without displaying the full charge information (icon D1) as the charge amount information as shown in FIG. To control.
According to this configuration, when the battery 49 is significantly deteriorated, the full charge state is not displayed even when the actual charge amount of the battery 49 is the full charge state, and the insufficient charge notification information is displayed. become. Therefore, the user always feels that the lack of charge is notified, recognizes the deterioration state very strongly, and easily takes action to replace the battery at an earlier stage.

  In addition, the deterioration detection unit detects at least either the total use time or the total use count of the battery 49 as the deterioration degree of the battery 49. In this way, the deterioration state of the battery 49 can be easily grasped more accurately based on information that is quantitatively related to the deterioration state, such as the total use time or the total number of uses. In the example of FIG. 7, the example in which the total use time of the battery 49 is used for the deterioration determination has been described. A determination process using the number of times may be used. For example, when the total number of uses of the battery 49 exceeds the threshold number T3, the process proceeds to Yes in S11, and when the total number of uses of the battery 49 is equal to or less than the threshold number T3 and exceeds the threshold number T2. The process proceeds to Yes in S13, and when the total number of uses of the battery 49 is equal to or less than the threshold number T2 and exceeds the threshold number T1, the process may proceed to Yes in S15.

[Second Embodiment]
Next, a second embodiment will be described with reference to the drawings.
Note that the reading apparatus 1 of the second embodiment has the same hardware configuration as that of the first embodiment. For example, the above-described (basic structure of the mobile terminal) is the same as that of the first embodiment, and the configurations of FIGS. 1 to 6 are the same as those of the first embodiment. Therefore, description will be made with reference to FIGS.

  In this configuration, the configuration of the deterioration sensor 44 is different from that of the first embodiment, and is configured as shown in FIGS. The deterioration sensor 44 and the control circuit 40 (FIG. 4 and the like) shown in FIGS. 12 to 14 correspond to an example of a deterioration detection unit and a bulge state detection unit, and detect at least the bulge state of the battery 49 as the degree of deterioration of the battery 49. It has a function to do. As shown in FIGS. 12, 13, and 14, the deterioration sensor 44 that forms a part of the swelling state detection unit is directed toward a predetermined outer wall surface 49a of the battery 49 (for example, an outer wall surface facing the battery lid 10c). It has the irradiation part 201 which irradiates light, and the light-receiving part 202 which receives the light from the outer wall surface 49a side of the battery 49. Further, as shown in FIG. 15, a determination unit 210 that determines the degree of deterioration of the battery 49 based on the light reception result of the light reception unit 202 is provided.

  In this configuration, the deterioration sensor 44 is configured as shown in FIG. 13, for example. As shown in FIGS. 12 and 14, the irradiating unit 201 receives light from the irradiating unit 201 at least on the outer wall surface 49 a of the battery 49. It arrange | positions so that it may pass in the direction along the said outer wall surface 49a in the outer side. Accordingly, in the case of FIG. 14 (A) in which the normal state as shown in FIG. 14 (A) changes as shown in FIG. 14 (B) and the outer wall surface 49a of the battery 49 is bulged, the bulge is not generated. The state of light from the irradiation unit 201 (the state of light passing through the vicinity of the outer wall surface 49a) is greatly changed. In addition, a reflecting member 211 having a predetermined structure is disposed on the outer wall surface 49 a of the battery 49, and at least a part of the reflecting member 211 is more reflective than the surrounding area adjacent to the reflecting member 211 on the outer surface portion of the battery 49. A high reflectivity region is provided. And the light from the irradiation part 201 passes near the high reflectance area | region of the surface part of this reflection member 211. As shown in FIG. The reflecting member 211 is configured as a known retroreflecting material, for example. Various known structures can be used as the configuration of the retroreflective material, and a prism reflection type reflection sheet structure, an encapsulated reflection sheet structure, a capsule lens type reflection sheet structure, or the like can be preferably used.

  Here, referring to FIG. 16, a process for controlling the display on the display unit (liquid crystal display 46) in this configuration (specifically, for controlling the display of the charge amount information (icons D <b> 1 to D <b> 4)). Will be described. The process in FIG. 16 is executed at least when a predetermined start condition is satisfied (for example, when the power is turned on or at a predetermined start operation on the operation unit 42). After completion, the processing is performed every predetermined short time or every time a predetermined condition is satisfied. In this process, first, the output value from the determination unit 210 is confirmed (S1). Then, it is determined whether or not the output value from the determination unit 210 (specifically, the output value from the comparator Cp) is at the H level.

  The determination unit 210 is configured as shown in FIG. 15, for example, and has a structure in which a voltage Va at a predetermined position and a reference voltage Vb are compared by a comparator Cp. In this configuration, when the amount of light received by the light receiving unit 202 is low, Vb exceeds Va, so that the comparator Cp outputs an H level. On the other hand, when the amount of light received by the light receiving unit 202 is high, Va exceeds Vb, and therefore the L level is output from the comparator Cp. Specifically, as shown in FIG. 14A, in the normal state in which the battery 49 is less swollen, the amount of light received by the light receiving unit 202 is low, and Vb exceeds Va, and FIG. ), When the battery 49 expands and most of the light from the irradiating unit 201 is reflected by the reflecting member 211, the amount of light received by the light receiving unit 202 increases, and Va exceeds Vb. . In S <b> 2 of FIG. 16, the output value from the determination unit 210 configured in this way is confirmed, and if the level is H, the process proceeds to Yes, and if the level is L, the process proceeds to No.

  When the process proceeds to Yes in S2 (that is, when there is little swelling in the battery 49 and the degree of deterioration is low), the same normal setting as in the first embodiment is maintained. Specifically, as shown in FIG. 8, when the output voltage of the battery 49 is “full charge state” which is V1 (eg, 4.1 V) or more, an icon D1 indicating the full charge state is displayed on the liquid crystal display 46. indicate. The icon D1 corresponds to an example of “predetermined full charge information”. In the normal setting, in the case of the “first low level state” in which the output voltage of the battery 49 is less than V1 and V2 (for example, 3.9 V) or more, an icon D2 indicating the first low level state is displayed on the liquid crystal. Displayed on the display 46. Further, in the normal setting, in the case of the “second low level state” in which the output voltage of the battery 49 is less than V2 and V3 (for example, 3.8 V) or more, an icon D3 indicating the second low level state is displayed on the liquid crystal. Displayed on the display 46. Further, in the normal setting, when the output voltage of the battery 49 is “third low level state” which is less than V3, an icon D4 indicating the third low level state is displayed on the liquid crystal display 46.

  On the other hand, when the process proceeds to No in S2 (that is, when the bulge in the battery 49 is large and the degree of deterioration is large), for example, the first setting similar to the first embodiment is set (S3). In this way, when the normal setting is changed to the first setting (No. 1), the icon display is shifted as shown in FIG. In the first setting, when the output voltage of the battery 49 is “full charge state” which is V1 (eg, 4.1 V) or more, the icon D1 indicating the full charge state is not displayed on the liquid crystal display 46, 1 An icon D2 indicating a low level state is displayed on the liquid crystal display 46. In the first setting, in the case of the “first low level state” in which the output voltage of the battery 49 is less than V1 and V2 (for example, 3.9 V) or more, the icon D2 indicating the first low level state is displayed on the liquid crystal. The icon D3 indicating the second low level state is displayed on the liquid crystal display 46 without being displayed on the display 46. Further, in the first setting, in the case of the “second low level state” in which the output voltage of the battery 49 is less than V2 and V3 (eg, 3.8 V) or more, the icon D3 indicating the second low level state is displayed on the liquid crystal. The icon D4 indicating the third low level state is displayed on the liquid crystal display 46 without being displayed on the display 46. Note that, in the first setting, the icon D4 indicating the third low level state is displayed on the liquid crystal display 46 even in the “third low level state” where the output voltage of the battery 49 is less than V3.

  In the above-described example, the example in which the first setting is changed in S3 is shown. However, the setting may be changed to the second setting described in the first embodiment in S3, and the description will be given in S3 in the first embodiment. You may change it to the third setting

(Main effects of this configuration)
As described above, in this configuration, the deterioration detection unit includes the bulge state detection unit that detects at least the bulge state of the battery 49 as the degree of deterioration of the battery 49. In this way, it becomes easy to grasp the deterioration state of the battery 49 more accurately based on the actual change in the outer shape of the battery 49.

  The bulge state detection unit includes an irradiation unit 201 that emits light toward a predetermined outer wall surface side of the battery 49, a light receiving unit 202 that receives light from the outer wall surface side of the battery 49, and light from the light receiving unit 202. And a determination unit that determines the degree of deterioration of the battery 49 based on the received light result. According to this configuration, the bulge of the battery 49 that actually occurs can be easily detected with a simpler configuration.

  Further, the irradiation unit 201 is arranged so that light from the irradiation unit 201 passes in a direction along the outer wall surface at least outside the outer wall surface of the battery 49. According to this configuration, when the bulge occurs on the outer wall surface of the battery 49, the state of light from the irradiation unit 201 (the state of light passing through the vicinity of the outer wall surface) greatly changes compared to the case where the bulge does not occur. It becomes easy to change the light reception result by the light receiving unit 202. Therefore, it becomes easier to detect the bulge of the battery 49 actually generated based on the light reception result by the light receiving unit 202 more accurately.

  In addition, a reflecting member 211 having a predetermined structure is disposed on the outer wall surface of the battery 49, and at least a part of the reflecting member 211 has a reflectance higher than that of the surrounding area adjacent to the reflecting member 211 on the outer surface portion of the battery 49. A high high reflectivity region is provided. According to this configuration, when the bulge occurs on the outer wall surface of the battery 49, the state of light from the irradiating unit 201 (the state of light passing near the outer wall surface) is even greater than when the bulge does not occur. It becomes easy to change, and the light reception result by the light receiving unit 202 is further easily changed. Therefore, it becomes easier to detect the bulge of the battery 49 actually generated based on the light reception result by the light receiving unit 202 more accurately.

1 ... Portable information code reader (portable terminal)
40. Control circuit (display control unit, deterioration detection unit, bulge state detection unit)
43 ... Charge amount sensor (charge amount detection unit)
44 ... Degradation sensor (degradation detector)
46 ... Liquid crystal display (display unit)
49 ... Battery 201 ... Irradiation part (bulging state detection part)
202. Light receiving part (bulging state detecting part)
210 ... determination part (bulging state detection part)
211 ... Reflection member

Claims (11)

A chargeable / dischargeable battery;
A display unit capable of displaying charge amount information indicating a charge amount of the battery;
A display control unit for controlling display of the charge amount information on at least the display unit;
A charge amount detection unit for detecting a charge amount of the battery;
A deterioration detecting unit configured to detect the degree of deterioration of the battery, and capable of determining whether or not at least the battery has a predetermined degree of deterioration;
With
The display control unit
When the predetermined deterioration degree of the battery is not detected by the deterioration detection unit, the display unit displays the charge amount information with contents indicating the charge amount of the battery detected by the charge amount detection unit. Control
If the predetermined deterioration degree of the battery is detected by the deterioration detection unit, the charge amount detection unit detects at least when the charge amount of the battery detected by the charge amount detection unit is a predetermined condition. A portable terminal, wherein the display unit is controlled to display the charge amount information with a content indicating a charge amount lower than a charge amount of the battery. The display control unit
A plurality of charge amount levels are determined in advance, and charge amount information for each level corresponding to each charge amount level is determined,
When the predetermined deterioration degree of the battery is not detected by the deterioration detection unit, the level corresponding to the level to which the charge amount of the battery detected by the charge amount detection unit of the plurality of charge amount levels belongs Control the display of the display unit to display different charge amount information,
When the predetermined degree of deterioration of the battery is detected by the deterioration detection unit, it corresponds to a level lower than the level to which the charge amount of the battery detected by the charge amount detection unit of the plurality of charge amount levels belongs The mobile terminal according to claim 1, wherein display of the display unit is controlled so as to display the charge amount information by level. The display control unit
When the predetermined deterioration degree of the battery is not detected by the deterioration detection unit, and the charge amount of the battery detected by the charge amount detection unit is a predetermined full charge state, the charge amount information Controlling the display unit to display predetermined full charge information;
When the predetermined deterioration degree of the battery is detected by the deterioration detection unit, the charge amount of the battery detected by the charge amount detection unit is lower than the full charge state when the battery is in the full charge state. The portable terminal according to claim 1 or 2, wherein the display unit is controlled so as to display predetermined low-level information indicating a state of charge.   In the case where the predetermined deterioration degree of the battery is detected by the deterioration detection unit and the charge amount of the battery detected by the charge amount detection unit is in the fully charged state, the display control unit The display unit is controlled to display predetermined low-level information indicating a charging state lower than the full charging state without displaying the full charging information as charge amount information. Mobile devices. The deterioration detector is configured to determine a plurality of stages of deterioration levels as the predetermined degree of deterioration of the battery, and to determine which stage of deterioration the battery belongs to,
The display control unit
A plurality of charge amount levels are determined in advance, and charge amount information for each level corresponding to each charge amount level is determined,
In the case where the predetermined deterioration degree of the battery is not detected by the deterioration detection unit, and the charge amount of the battery detected by the charge amount detection unit is in the full charge state, a plurality of charge by level Controlling the display unit to display the level-specific charge amount information corresponding to the full charge information out of the amount,
When the predetermined deterioration degree of the battery is detected by the deterioration detection unit, and the charge amount of the battery detected by the charge amount detection unit is in the fully charged state, it is detected by the deterioration detection unit. 5. The mobile terminal according to claim 3, wherein the display unit is controlled to display the charge amount-specific information corresponding to the deterioration level as the low-level information. The deterioration detection unit can detect a predetermined deterioration remarkable state as the predetermined deterioration degree of the battery,
The display control unit
In a case where the predetermined deterioration degree of the battery is not detected by the deterioration detection unit, when the charge amount of the battery detected by the charge amount detection unit is in a predetermined insufficient charge state, predetermined as the charge amount information Controlling the display unit to display the insufficient charging notification information,
When the deterioration noticeable state of the battery is detected by the deterioration detection unit, and the charge amount of the battery detected by the charge amount detection unit is the full charge state, the full charge information is used as the charge amount information. The mobile terminal according to any one of claims 3 to 5, wherein the display unit is controlled so as to display the insufficient charging notification information without displaying a message.   The portable device according to any one of claims 1 to 6, wherein the deterioration detection unit detects at least one of a total use time and a total use count of the battery as a deterioration degree of the battery. Terminal.   The portable terminal according to claim 1, wherein the deterioration detection unit includes a bulge state detection unit that detects at least a bulge state of the battery as a degree of deterioration of the battery. The bulge state detector
An irradiation unit for irradiating light toward a predetermined outer wall surface of the battery;
A light receiving portion for receiving light from the outer wall surface side of the battery;
A determination unit that determines a degree of deterioration of the battery based on a light reception result of the light by the light reception unit;
The mobile terminal according to any one of claims 1 to 8, characterized by comprising:   The portable device according to claim 9, wherein the irradiation unit is arranged such that light from the irradiation unit passes in a direction along the outer wall surface at least outside the outer wall surface of the battery. Terminal. A reflective member having a predetermined structure is disposed on the outer wall surface of the battery,
The high-reflectance area | region with a higher reflectance than the surrounding area | region adjacent to the said reflection member in the outer surface part of the said battery is provided in the at least one part of the said reflection member. The mobile terminal according to 10.

Images