JP3698992B2 - Wireless communication terminal - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a wireless communication terminal, and more particularly to a portable wireless communication terminal having a function of receiving a transmission wave from a satellite (GPS satellite, broadcast satellite, communication satellite, etc.).
[0002]
[Prior art]
In the wireless communication terminal, the ratio of the power consumption of the light source that makes the display unit easy to see to the power consumption of the entire terminal is very high. In order to reduce the power consumed by the light source, the recent portable wireless communication terminals do not use a light source for the display unit, but use a light (natural light, room light, etc.) emitted from the front side. Some are equipped with a display. By using this reflective display unit, it is not necessary to have a light source in the portable wireless communication terminal, so that power consumption can be greatly reduced.
[0003]
However, particularly when the portable wireless communication terminal equipped with the reflective display unit is used outdoors at night, since the display unit can hardly be seen, the place of use is limited. Therefore, an increasing number of wireless communication terminals with a display function are equipped with a transflective display unit that uses both a light source and light emitted from the front. In the case of this wireless communication terminal, the amount of light emitted from the light source can be suppressed by using the light emitted from the front, so that the power consumption can be reduced accordingly.
[0004]
However, a wireless communication terminal with a display function equipped with a transflective display unit can control the light source even though it can withstand the use of natural light in the daytime, especially outdoors in the daytime, without using the light source. The main control method is to turn on the light source when a key is input, whether it is indoors or outdoors, and turn it off when there is no event for a certain period of time. Since it lights up, the current situation is that it does not take full advantage of its features.
[0005]
Therefore, conventionally, wireless communication terminals that calculate position information (longitude, latitude) from radio waves transmitted from GPS satellites used in GPS (Global Positioning System) and control the light source are known. (JP 2000-292198, JP 2000-9821). In these conventional wireless communication terminals, since the light source is controlled in accordance with the position information, the light source is not always turned on, and the power consumption can be reduced.
[0006]
[Problems to be solved by the invention]
However, in the conventional wireless communication terminal described in Japanese Patent Application Laid-Open No. 2000-292198, longitude and latitude position information data obtained by receiving positioning radio waves from GPS satellites, current time data from a clock circuit, calendar Based on the correlation with the calendar data from the circuit, either the day setting or the night setting is selected, and the display light quantity on the display unit is increased or decreased based on the selected setting. It is necessary to calculate the position information data of the current position from the radio waves for the positioning, and it takes about 30 seconds to 3 minutes from the reception of the positioning radio waves to the calculation of the position information data. There is a problem that the power consumption increases accordingly. In addition, the light source is controlled only by dividing day and night, and it is not distinguished whether it is outdoor or indoor, and control according to weather information is not performed, so that power consumption is not sufficiently reduced.
[0007]
In addition, the conventional wireless communication terminal described in JP-A-2000-9821 generates display information based on reception position information and time information obtained by receiving radio waves from GPS satellites, A flash control signal that instructs to turn off during the divided daytime period, generates a blinking control signal that instructs to turn on during the divided nighttime period, and displays the display information based on the blinking control signal. It is a configuration that controls the blinking of the light, and simply controls the blinking of the backlight, which is the light source by dividing day and night, and does not distinguish between outdoor or indoor, and does not control according to weather information There is a problem that power consumption is not sufficiently reduced.
[0008]
The present invention has been made in view of the above points. In addition to distinguishing between day and night, the light source of the display unit is appropriately controlled according to various situations around the terminal, so that optimal light source control according to the use environment can be performed. An object of the present invention is to provide a wireless communication terminal that can reduce power consumption as much as possible.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, according to a first aspect of the present invention, in a portable wireless communication terminal connectable to a web server via a network, meteorological data obtaining means for obtaining meteorological data for the day when the power switch is turned on, Satellite radio wave reception unit that can receive radio waves from satellites during the on period, display unit for display, light source for easy display display, and weather data obtained by weather data acquisition means Based on the data, when it is determined by the first determination means that the current time is daytime and the weather is fine, and the first determination means determines that the condition is satisfied, The satellite radio wave receiving unit is turned on to control whether the satellite radio wave receiving unit has received radio waves from the satellite. When it is determined that the satellite radio wave receiving unit has received the radio wave from the satellite, the light source is controlled to be turned off, and when it is determined that the condition is not satisfied by the first determination unit, or from the satellite by the second determination unit When it is determined that the radio wave is not received by the satellite radio wave receiver, the first light source control means for controlling the lighting of the light source is provided.
[0010]
In the present invention, when the current time is daytime and the weather is sunny and the condition that the satellite radio wave reception unit receives radio waves from the satellite is satisfied, the daytime sunny outdoor terminal It can be determined that the light source is in use, and it is determined that a sufficient amount of natural light is incident on the display unit, and the light source is turned off. When one or both of the above two conditions are not satisfied, a sufficient amount of natural light is displayed. The light source is controlled to be turned on by determining that the light is not incident on the part.
[0011]
Further, in order to achieve the above object, the second invention is based on the weather data of the day obtained by the weather data obtaining means when any key is input with the power switch turned on. A third determination unit that determines whether or not a condition that the current time is daytime and the weather is clear, and a satellite radio wave receiving unit that determines that the condition is satisfied by the third determination unit; The power is turned on to determine whether the satellite radio wave reception unit has received the radio wave from the satellite, and the fourth determination unit determines that the satellite radio wave reception unit has received the radio wave from the satellite. When the light source is turned off, the light source is controlled to be turned off, and when the third determination means determines that the condition is not satisfied, or the fourth determination means causes the radio wave from the satellite to be When it is determined that the signal is not received by the receiving unit, the second light source control means for controlling the lighting of the light source, and the second light source control means starts the timer count triggered by the lighting control of the light source. The apparatus further includes third light source control means for controlling to turn off the light source after a predetermined time has elapsed without occurrence.
[0012]
In this invention, after the light source is turned on or off after the key is input, the light source can be controlled to be turned off at the time of determination of the elapse of a predetermined time by the timer count in the state where no event occurs, and the light remains on. A state can be prevented.
[0013]
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[0014]
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[0015]
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[0016]
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[0017]
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[0018]
In order to achieve the above objective,3According to the present invention, in a portable wireless communication terminal equipped with a camera unit with a flash that can be connected to a web server via a network, a meteorological data obtaining means for obtaining meteorological data for the day when the power switch is turned on, The satellite radio wave receiving unit that can receive radio waves from the satellite during the period, the flash control circuit that lights the flash when the shutter of the camera unit is pressed, and weather data acquisition means when set to on On the basis of the meteorological data, the first determination means for determining whether or not the condition that the current time is daytime and the weather is sunny is satisfied, and the first determination means determines that the condition is satisfied Sometimes the satellite radio receiver is turned on to determine whether the satellite radio receiver has received radio waves from the satellite. When it is determined by the determination means and the second determination means that the satellite radio wave receiving unit has received the radio wave from the satellite, the flash control circuit is controlled to be turned off, and the first determination means determines that the condition is not satisfied. Control means for controlling the flash control circuit to be turned on when the second determination means determines that the satellite radio wave is not received by the satellite radio wave receiver.
[0019]
In this invention, it is determined whether the current time is daytime and the weather is clear based on weather data, and whether the satellite is received by the satellite radio wave receiver, whether the terminal is used outdoors or indoors. Based on the determination result, the flash can be automatically turned on when the shutter of the camera unit is pressed when the camera is used outdoors under fine daylight.
[0020]
In order to achieve the above objective,5According to the present invention, in a portable wireless communication terminal that does not have a function of connecting to a web server, meteorological data storage means for storing past sunset time data and sunrise time data of the Japan Meteorological Agency as weather data, During the period, the satellite radio wave receiving unit in which radio waves from the satellite can be received, a display unit for displaying, a light source for making the display of the display unit easy to see, and the weather stored in the weather data storage means A first determination means for comparing the current time with the sunset time data and sunrise time data of the current day or the current month, and determining whether or not a condition that the current time is daytime is satisfied; When the determination means determines that the condition is satisfied, the satellite radio wave receiving unit is turned on, and the radio wave from the satellite is transmitted to the satellite. A second determination unit that determines whether or not the radio wave reception unit has received, and when the second determination unit determines that the satellite radio wave reception unit has received a radio wave from the satellite, the light source is controlled to be turned off. When the first determination means determines that the condition is not satisfied, or when the second determination means determines that the radio wave from the satellite is not received by the satellite radio wave receiver, the light source is turned on. It has the 1st light source control means to control, It is characterized by the above-mentioned. First6 andSecond7The invention of the2 andSecond3Instead of the meteorological data acquisition means of the invention5It is set as the structure which has the same weather data storage means as invention of this invention.
[0021]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a schematic configuration diagram of an example of a communication system using a wireless communication terminal according to the present invention, and FIG. 2 shows a mobile block diagram of an embodiment of a wireless communication terminal according to the present invention.
[0022]
In FIG. 1, a mobile phone 101 and a portable information terminal (for example, a notebook personal computer) 102 as an example of a wireless communication terminal according to the present invention are radio waves transmitted from a satellite (GPS satellite, broadcast satellite, communication satellite, etc.) 103. Can be received as indicated by 104, the light source of the display unit is set to OFF and the radio wave transmitted from the satellite 103 is received as indicated by 105, as will be described later. When indoors where this is not possible, the light source of the display unit is set to ON as will be described later.
[0023]
Further, the mobile phone 101 and the portable information terminal 102 can receive weather data stored in the web server 107 from the 109 base station 108 via the mobile phone network or the Internet 106. 101 and the portable information terminal 102 can also transmit data to the web server 107 by reversing the above route.
[0024]
As shown in the block diagram of FIG. 2, the mobile phone 101 and the portable information terminal 102 are configured to receive the weather data 109, transmit the data to the web server 107, or use a network to An antenna 201 used for communication, a demodulator 202 that converts a signal received by the antenna 201 into reception data of an electric signal, and a modulation that modulates transmission data to be transmitted to a network and outputs the modulated data to the antenna 201 A central processing unit (CPU) 205, which is a control unit that performs overall control of the entire apparatus. The memory unit 204 is connected to the CPU 205, and a read only memory (ROM) unit 206 that stores a program for controlling a light source and alarm sound, which will be described later, initial setting values, and the like, and a random access that is a work area. A memory (RAM) unit 207 is included. The CPU 205 includes a timer circuit 208 and a light source control circuit 209.
[0025]
Further, the cellular phone 101 and the portable information terminal 102 are provided with a battery 210 for supplying power to necessary portions in the apparatus, an input interface unit 211 for a user to input data by operating the terminal, and a satellite 103. A satellite radio wave reception unit 212 for receiving radio waves, a speaker unit 213 for sounding, a vibrator unit 214 that alerts the user with vibration, a display unit 215 that displays data calculated by the CPU 205, and a display unit 215 And a step count circuit 217 that counts the vibration of the terminal when the user moves. The display unit 215 is a transflective display unit.
[0026]
Next, the operation of the first embodiment of the apparatus of the present invention will be described with reference to the flow chart showing the control method of FIGS. 3 and 4 and FIGS. First, when the user turns on the power switch (SW) of the wireless communication terminal (the mobile phone 101 and the portable information terminal 102 in FIG. 1) of the present invention (step 301 in FIG. 3), the CPU 205 is transmitted from the base station 108. It is determined whether or not the received electric field level of the radio wave received by the antenna 201 is equal to or higher than a predetermined threshold (step 302 in FIG. 3).
[0027]
When the received electric field level is equal to or higher than a predetermined threshold value, the CPU 205 determines that it is “within range”, makes a line connection request to the network via the modulation unit 203 and the antenna 201, and connects to the web server 107. (Step 303 in FIG. 3). On the other hand, when the received electric field level is less than the predetermined threshold value, the CPU 205 determines that it is “out of service area”, sets the light source control circuit 209 to light source off (step 304 in FIG. 3), and then receives the received electric field level. The received electric field level is monitored until the value becomes equal to or greater than a predetermined threshold value, that is, until “range” is reached (step 305 in FIG. 3). Therefore, when the CPU 205 determines that the area is “within range”, the light source 216 is turned off, so that no power is consumed by the light source 216.
[0028]
When it becomes “area” and is connected to the web server 107 via a line, the weather data 109 stored in the web server 107 is received by the antenna 201 of the wireless communication terminal via the network 106 and the base station 108, and the demodulation unit The data is demodulated by 202 and input to the CPU 205, and the CPU 205 stores the weather data in the RAM unit 207 (step 306 in FIG. 3). This meteorological data includes the current day's weather, sunrise time, sunset time, and the like. Note that in a wireless communication terminal without an Internet connection function, sunrise and sunset time data is stored in advance in the ROM unit 206 on a daily or monthly basis based on past data from the Japan Meteorological Agency. This is to cope with changes in sunrise and sunset times according to the season.
[0029]
Subsequently, the CPU 205 satisfies the condition that the current time acquired from the timer circuit 208 is earlier than the sunset time acquired from the weather data and later than the sunrise time (sunset time> current time> sunrise time). (Step 307 in FIG. 3), and when the condition is met, it is determined that it is daytime (not nighttime), and it is determined whether the weather information of the day in the weather data described above is “clear”. (Step 308 in FIG. 3).
[0030]
If “sunny”, the CPU 205 turns on the satellite radio wave reception unit 212 (step 309 in FIG. 3), and whether or not the radio wave reception signal from the satellite 103 is input from the satellite radio wave reception unit 212, that is, It is determined whether satellite radio waves have been received (step 310 in FIG. 3). When satellite radio waves can be received, it is determined that the wireless communication terminal is being used outdoors (step 311 in FIG. 3), and the satellite radio wave receiver 212 is turned off (step 312 in FIG. 3).
[0031]
At this time, since the wireless communication terminal is being used outdoors and the weather is “sunny”, it can be determined that a sufficient amount of natural light is applied to the display unit 215 of the wireless communication terminal. Controls the light source control circuit 209 to turn off and turns off the light source 216 (step 313 in FIG. 3). Therefore, at this time, power consumption by the light source 216 does not occur.
[0032]
On the other hand, when it is determined in step 307 that the condition of “sunset time> current time> sunrise time” is not satisfied, it can be determined that it is nighttime, and it is determined in step 308 that the weather information is not “clear”. In this case, since it is determined that a sufficient amount of natural light cannot be obtained even in the daytime, the CPU 205 controls the light source control circuit 209 to be turned on in any case and turns on the light source 216 (step 314 in FIG. 3).
[0033]
When it is determined in step 310 that the radio wave of the satellite 103 cannot be received, since the radio wave from the satellite 103 is blocked indoors, it is determined that the wireless communication terminal is in use indoors (step 315 in FIG. 3). When the satellite radio wave receiving unit 212 is turned off (step 316 in FIG. 3), the weather is “sunny” in the daytime, but since it is used indoors, a sufficient amount of light cannot enter the display unit 215. The CPU 205 turns on the light source control circuit 209 to turn on the light source 216 (step 314 in FIG. 3).
[0034]
Next, an operation when the user inputs a key of a wireless communication terminal that is turned on will be described. When a key is input (step 401 in FIG. 4), the CPU 205 reads out the meteorological data that has been received and saved in the RAM unit 207 or stored in the ROM unit 206 when the power switch is turned on. In a wireless communication terminal that does not turn off the power switch too much, the line is automatically connected at the time set by the user and the weather data is received, or the weather data is automatically set at a fixed time every day from the push type server. Is transmitted and received and stored in the RAM unit 207.
[0035]
The CPU 205 determines from the weather data whether the above-mentioned condition of sunset time> current time> sunrise time is true (step 402 in FIG. 4). ”(Step 403 in FIG. 4), and if“ sunny ”, the CPU 205 turns on the satellite radio wave reception unit 212 (step 404 in FIG. 4) and has received the radio wave from the satellite 103. Judgment is made (step 405 in FIG. 4).
[0036]
When satellite radio waves can be received, it is determined that the wireless communication terminal is being used outdoors (step 406 in FIG. 4), and the satellite radio wave receiver 212 is turned off (step 407 in FIG. 4). Then, the CPU 205 controls the light source control circuit 209 to turn off and turns off the light source 216 (step 408 in FIG. 4). Therefore, at this time, power consumption by the light source 216 does not occur.
[0037]
On the other hand, if the condition of step 402 is not satisfied, if it is determined in step 403 that the weather information is not “clear”, or if it is determined in step 405 that no satellite radio wave is received, the display unit 215 is displayed. Since it can be determined that the amount of incident light is not sufficient, the CPU 205 turns on the light source control circuit 209 to turn on the light source 216 (step 409 in FIG. 4). When it is determined in step 405 that no satellite radio wave is received, the wireless communication terminal is determined to be used indoors (step 410 in FIG. 4), and the satellite radio wave receiving unit 212 is turned off (FIG. 4). Step 411).
[0038]
The above operation is the same as that in the flowchart of FIG. 3 when the power switch is turned on, but at the time of this key input, the CPU 205 further triggers that the light source control circuit 209 is turned on as a trigger. To start counting the timer (step 412 in FIG. 4). Before the timer expires, it is monitored whether an interrupt event such as a key input has occurred (step 413 in FIG. 4). If an interrupt event has occurred, the count value is cleared while the light source 216 remains on. Then, the timer circuit 208 starts counting again (step 412 in FIG. 4).
[0039]
After the timer starts counting, when a predetermined time elapses without an interrupt event occurring (step 414 in FIG. 4), the CPU 205 controls the light source control circuit 209 to turn off and turns off the light source 216 (FIG. 4). Step 408). If there is a next key input thereafter, the process returns to the first process (step 401 in FIG. 4).
[0040]
As described above, in the first embodiment, when the power switch is turned on, the light source 216 is controlled to be turned off only when the weather is being used outdoors in the daytime when the weather is fine. Since the lighting control of the light source 216 is sometimes performed, the light source 216 can be optimally controlled as compared with the conventional method in which the light source is controlled by simply distinguishing day and night.
[0041]
In addition, when the key is input after the power switch is turned on, the light source 216 is controlled to be turned on when the weather is sunny and the outdoor use condition is not satisfied. If an event does not occur in the light source 216, the light source 216 is controlled to be turned off, so that power consumption by the light source 216 can be minimized.
[0042]
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[0043]
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[0044]
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[0045]
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[0046]
Next, the first of the present invention2Figure about the embodiment of5This will be described together with the flowchart. This first2In the present embodiment, the ring volume control is performed using the availability of satellite radio waves instead of the light source on / off control. The CPU 205 first turns on the power switch of the wireless communication terminal (see FIG.5Step 601), the satellite radio wave receiver 212 is turned on (see FIG.5Step 602), the radio wave transmitted from the satellite 103 is set in a receivable state.
[0047]
In this state, the CPU 205 determines whether or not the satellite radio wave receiving unit 212 has received the radio wave from the satellite (see FIG.5Step 603), when it is received, the CPU 205 determines that the wireless communication terminal is being used outdoors (see FIG.5Step 604), the satellite radio wave receiving unit 212 is controlled to be turned off (see FIG.5Step 605), the alarm volume such as a ringtone is set to a large volume based on the user set value or the initial set value stored in advance in the ROM unit 206 (FIG.5Step 606). Then, the timer circuit 208 starts the timer count (see FIG.5Step 607).
[0048]
On the other hand, when the CPU 205 determines in step 603 that the satellite radio wave reception unit 212 cannot receive radio waves from the satellite, the CPU 205 determines that the wireless communication terminal is being used indoors (see FIG.5Step 608), the satellite radio wave receiving unit 212 is turned off (see FIG.5Step 609), the alarm volume such as a ring tone is changed to a user-set value or a smaller volume based on the initial set value stored in the ROM unit 206 or to use the vibrator unit 214 (FIG.5Step 610). Then, the timer circuit 208 starts the timer count (see FIG.5Step 607).
[0049]
When the timer circuit 208 times out after a certain period of time (see FIG.5Step 611), the process returns to the process of turning on the power of the satellite radio wave receiver 212 with the time-up as a trigger (FIG.5Step 602). In step 607, the counting operation of the step count circuit 217 is started. When it is determined in step 611 that the step count value has reached the set value, it is determined that the wireless communication terminal has moved, and the satellite radio wave reception in step 602 is performed. You may make it return to the process which turns on the power supply of the part 212. FIG. Alternatively, the alarm volume may be set again using a line connection request from the network as a trigger.
[0050]
In this embodiment, only when it is determined that the device is used outdoors, the ringtone is made louder, and when used indoors, the ringer does not sound and the vibrator unit 214 operates. Thus, it is possible to prevent the ring tone from being automatically emitted when indoor use, and the optimum on / off control of the ring tone according to the terminal usage environment can be automatically performed.
[0051]
Next, the first of the present invention3Figure about the embodiment of6This will be described together with the flowchart. This first3This embodiment is not the on / off control of the light source but the on / off control of the flash using the availability of satellite radio waves of a wireless communication terminal equipped with a camera unit with a flash. As in the first embodiment of FIG. 3, when the power switch (SW) is turned on (FIG.6Step 701), the CPU 205 determines whether or not the received electric field level of the radio wave transmitted from the base station 108 and received by the antenna 201 is equal to or higher than a predetermined threshold (FIG.6Step 702).
[0052]
When the received electric field level is equal to or higher than the predetermined threshold value, the CPU 205 determines that the area is “within range”, makes a line connection request to the network via the modulation unit 203 and the antenna 201, and connects to the web server 107. (Figure6Step 703). On the other hand, when the received electric field level is less than the predetermined threshold value, the CPU 205 determines that it is “out of range” and, unlike the first embodiment, the flash of the wireless communication terminal equipped with the camera unit with flash. Set the control circuit to ON (Fig.6Step 714), the flash is turned on when the shutter of the camera unit is pressed (FIG.6Step 715).
[0053]
On the other hand, when the user is in the service area and connected to the web server 107 via a line, the weather data 109 stored in the web server 107 is received by the antenna 201 of the wireless communication terminal via the network 106 and the base station 108, and the demodulator The data is demodulated by 202 and input to the CPU 205, and the CPU 205 stores the weather data in the RAM unit 207 (see FIG.6Step 704). This meteorological data includes the current day's weather, sunrise time, sunset time, and the like. Note that in a wireless communication terminal without an Internet connection function, sunrise and sunset time data is stored in advance in the ROM unit 206 on a daily or monthly basis based on past data from the Japan Meteorological Agency. This is to cope with changes in sunrise and sunset times according to the season.
[0054]
Subsequently, the CPU 205 satisfies the condition that the current time acquired from the timer circuit 208 is earlier than the sunset time acquired from the weather data and later than the sunrise time (sunset time> current time> sunrise time). Whether or not6Step 705), when the condition is met, it is determined that it is daytime, and it is determined whether or not the weather information of the day in the above-described weather data is “clear” (FIG.6Step 706).
[0055]
If it is “clear”, the CPU 205 turns on the satellite radio wave receiver 212 (see FIG.6Step 707), it is determined whether satellite radio waves have been received (see FIG.6Step 708). When satellite radio waves are received, it is determined that the wireless communication terminal is being used outdoors (Fig.6Step 709) and turning off the satellite radio wave receiver 212 (see FIG.6Step 710), since a sufficient amount of natural light is obtained, the flash control circuit of the wireless communication terminal equipped with the camera unit with a flash is set to OFF (FIG.6Step 711). Thus, the flash is not turned on when the camera unit shutter is pressed, and power consumption due to the flash can be prevented.
[0056]
On the other hand, when it is determined in step 705 that the condition of “sunset time> current time> sunrise time” is not satisfied, it can be determined that it is nighttime, and in step 706 it is determined that the weather information is not “clear”. In this case, the CPU 205 controls the flash control circuit to be on (see FIG.6Step 714), the flash is turned on when the shutter of the camera unit is pressed (FIG.6Step 715).
[0057]
If it is determined in step 708 that the radio wave of the satellite 103 cannot be received, it is determined that the radio communication terminal is in use indoors because the radio wave from the satellite 103 is blocked indoors (see FIG.6In step 412), the satellite radio wave receiving unit 212 is turned off (step 713 in FIG. 3), and the weather is "clear" in the daytime, but it is used indoors, so a sufficient amount of light cannot be obtained. CPU 205 controls to turn on the flash control circuit (see FIG.6Step 714), the flash is turned on when the shutter of the camera unit is pressed (FIG.6Step 715).
[0058]
As described above, according to the present embodiment, the on / off control of the flash can be automatically performed according to the usage environment of the terminal including the camera unit with the flash, and the flash is used wastefully such as when the flash is used outdoors. Power consumption due to can be prevented.
[0059]
In addition, this invention is not limited to the above embodiment, For example,The figure3 and the first embodiment of FIG.StateThe figure5And figure6One or both of the embodiments can be combined.
[0060]
In addition, in a wireless communication terminal (such as the mobile phone 101 or the portable information terminal 102) that does not have a function of obtaining weather data from the web server 107 via the Internet or a mobile phone network, the sunset is set in advance based on the past data of the Japan Meteorological Agency. Although it has been described that the time data and the sunrise time data are acquired and stored in the ROM unit 206, the weather information of the day cannot be obtained in this wireless communication terminal, so step 305 in FIG. 3 and step 40 in FIG.3, Fig. 6In step 706, the step of determining whether the weather information is sunny is ignored and the intended control is performed.
[0061]
【The invention's effect】
As described above, according to the present invention, when it is determined that the terminal is used outdoors under fine weather in the daytime, it is determined that a sufficient amount of natural light is incident on the display unit. In other cases, the light source is controlled to be turned off, and in other cases, it is determined that a sufficient amount of natural light is not incident on the display unit, and the light source is controlled to be turned on. Compared with the device, it is possible to turn on the light source in the terminal usage environment where it is rainy even in the daytime or when natural light of sufficient light quantity is not incident on the display part, such as indoor use, and optimal light source control according to the usage environment As well as reducing unnecessary power consumption by the light source
it can.
[0062]
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[0063]
Further, according to the present invention, it is automatically determined whether the terminal is used outdoors or indoors depending on whether the satellite radio wave reception unit has received the satellite radio wave, and the optimum according to the determination result Because ringtones can be annoying to the surroundings, especially when the terminal is used indoors, even if the user forgets to switch to the vibrator, the ringtone does not disturb the surroundings. The volume can be switched automatically.
[0064]
Furthermore, according to the present invention, it is determined whether the terminal is used outdoors or indoors, and based on the determination results, the flash is automatically turned on when the camera unit is pressed outdoors when the camera is used outdoors under fine weather. Therefore, it is possible to prevent wasteful power consumption due to lighting the flash when used outdoors.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram of an example of a system using an apparatus of the present invention.
FIG. 2 is a block diagram of an embodiment of the device of the present invention.
FIG. 3 is a flowchart for explaining a control operation when a power switch is turned on according to the first embodiment of this invention;
FIG. 4 is a flowchart for explaining a control operation at the time of key input according to the first embodiment of this invention.
FIG. 5 is a flowchart for explaining the operation of the second embodiment of the present invention;
FIG. 6 is a flowchart for explaining the operation of the third embodiment of the present invention;
[Explanation of symbols]
101 Mobile phone
102 Portable information terminal
103 satellite
107 Weather data storage web server
204 Memory part
205 Central processing unit (CPU)
206 ROM part
207 RAM section
208 Timer circuit
209 Light source control circuit
212 Satellite radio wave receiver
215 Display section
216 Light source
217 Step count circuit

Claims (7)

In a portable wireless communication terminal that can be connected to a web server via a network,
Meteorological data acquisition means to acquire the weather data of the day when the power switch is turned on,
During the power-on period, the satellite radio wave receiving unit that can receive radio waves from the satellite,
A display unit for displaying, and
A light source for making the display of the display section easy to see;
Based on the weather data obtained by the weather data obtaining means, first determination means for determining whether or not a current time is daytime and the weather is sunny,
When the first determination means determines that the condition is satisfied, the satellite radio wave receiving unit is turned on to determine whether the satellite radio wave receiving unit has received radio waves from the satellite. Determining means,
When it is determined by the second determination means that the satellite radio wave reception unit has received a radio wave from the satellite, the light source is turned off, and the first determination means determines that the condition is not satisfied. Or when the second determination means determines that the satellite radio wave is not received by the satellite radio wave receiver, the first light source control means controls the lighting of the light source. Wireless communication terminal. The condition that the current time is daytime and the weather is clear based on the weather data of the day obtained by the weather data obtaining means when any key is input while the power switch is on. Third determination means for determining whether or not
When the third determination means determines that the condition is satisfied, the satellite radio wave receiving unit is turned on to determine whether the satellite radio wave receiving unit has received the radio wave from the satellite. Determining means,
When it is determined by the fourth determination means that the satellite radio wave reception unit has received a radio wave from the satellite, the light source is turned off, and the third determination means determines that the condition is not satisfied. Or when the fourth determination means determines that the satellite radio wave is not received by the satellite radio wave receiver, the second light source control means for controlling the lighting of the light source,
The second light source control means starts a timer count triggered by the light source being controlled to be turned on, and controls to turn off the light source after a certain time has elapsed without an event occurring. The wireless communication terminal according to claim 1, further comprising: 3 light source control means. In a portable wireless communication terminal equipped with a camera unit with flash that can be connected to a web server via the network,
Meteorological data acquisition means to acquire the weather data of the day when the power switch is turned on,
A satellite radio wave receiving unit that can receive radio waves from the satellite during the power-on period;
When set to on, a flash control circuit that lights the flash when the shutter of the camera unit is pressed,
Based on the weather data obtained by the weather data obtaining means, first determination means for determining whether or not a current time is daytime and the weather is sunny,
When the first determination means determines that the condition is satisfied, the satellite radio wave receiving unit is turned on to determine whether the satellite radio wave receiving unit has received radio waves from the satellite. Determining means,
When it is determined by the second determination means that the satellite radio wave reception unit has received a radio wave from the satellite, the flash control circuit is controlled to be off, and the condition is not satisfied by the first determination means. Control means for controlling the flash control circuit to turn on when it is determined, or when it is determined by the second determination means that radio waves from the satellite are not received by the satellite radio wave receiver. A wireless communication terminal. 2. The weather data obtaining means makes a line connection request to the network, and obtains the weather data stored in the web server via the network after the line connection. 3. A wireless communication terminal according to 3 . In a portable wireless communication terminal that does not have a function of connecting to a web server,
Meteorological data storage means for storing the sunset time data and sunrise time data of the past JMA as weather data in advance,
During the power-on period, the satellite radio wave receiving unit that can receive radio waves from the satellite,
A display unit for displaying, and
A light source for making the display of the display section easy to see;
Of the weather data stored in the weather data storage means, the current time is compared with the sunset time data and sunrise time data of the current day or the current month, and whether or not the current time is in the daytime First determining means for determining;
When the first determination means determines that the condition is satisfied, the satellite radio wave receiving unit is turned on to determine whether the satellite radio wave receiving unit has received radio waves from the satellite. Determining means,
When it is determined by the second determination means that the satellite radio wave reception unit has received a radio wave from the satellite, the light source is turned off, and the first determination means determines that the condition is not satisfied. Or when the second determination means determines that the satellite radio wave is not received by the satellite radio wave receiver, the first light source control means controls the lighting of the light source. Wireless communication terminal. When any key is input while the power switch is on, among the weather data stored in the weather data storage means, the current time is compared with the sunset time data and sunrise time data of the current day or the current month. A third determination means for determining whether or not a condition that the current time is daytime is satisfied;
When the third determination means determines that the condition is satisfied, the satellite radio wave receiving unit is turned on to determine whether the satellite radio wave receiving unit has received the radio wave from the satellite. Determining means,
When it is determined by the fourth determination means that the satellite radio wave reception unit has received a radio wave from the satellite, the light source is turned off, and the third determination means determines that the condition is not satisfied. Or when the fourth determination means determines that the satellite radio wave is not received by the satellite radio wave receiver, the second light source control means for controlling the lighting of the light source,
The second light source control means starts a timer count triggered by the light source being controlled to be turned on, and controls to turn off the light source after a certain time has elapsed without an event occurring. The wireless communication terminal according to claim 5 , further comprising: 3 light source control means. In a portable wireless communication terminal equipped with a camera unit with flash that does not have a connection function to a web server,
Meteorological data storage means for storing the sunset time data and sunrise time data of the past JMA as weather data in advance,
During the power-on period, the satellite radio wave receiving unit that can receive radio waves from the satellite,
When set to on, a flash control circuit that lights the flash when the shutter of the camera unit is pressed,
Of the weather data stored in the weather data storage means, the current time is compared with the sunset time data and sunrise time data of the current day or the current month, and whether or not the current time is in the daytime First determining means for determining;
When the first determination means determines that the condition is satisfied, the satellite radio wave receiving unit is turned on to determine whether the satellite radio wave receiving unit has received radio waves from the satellite. Determining means,
When it is determined by the second determination means that the satellite radio wave reception unit has received a radio wave from the satellite, the flash control circuit is controlled to be off, and the condition is not satisfied by the first determination means. Control means for controlling the flash control circuit to turn on when it is determined, or when it is determined by the second determination means that radio waves from the satellite are not received by the satellite radio wave receiver. A wireless communication terminal.

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