JPH09172402A - Battery saving device for mobile radio equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the unusable situation of a battery because of its complete discharge and to extend time until complete discharge when residual battery has diminished. SOLUTION: A power source is supplied from a battery part 4 through a switch circuit part 3 to a telephone equipment circuit part 2 and the residual amount of the battery 4 is detected by a residual amount detection part 6. When the residual amount reaches 5% (the speaking amount of five minutes), as a control part 7 turns off a switch within the switch circuit 3, the power source of the battery 4 is no longer supplied to the telephone equipment circuit part 2. In addition manual switches 9 and 10 are normally set ON. Thus the residual battery equivalent to the speaking amount of five minutes is secured.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery saving device for mobile radios, and more particularly to a battery saving device for mobile phones.

[0002]

2. Description of the Related Art Conventionally, in a mobile phone, as a battery saving method, transmission power control during a call or VOX (Voice Operated T) during a call is performed.
A transmitter control function or the like is adopted.

On the other hand, there are some which have no direct battery saving effect, but have a function of detecting the remaining amount of the battery and displaying the remaining amount on the display.

Further, in Japanese Unexamined Patent Publication No. 4-355524, when a dead zone where the input electric field becomes lower than a predetermined level is entered, a mobile phone which performs an intermittent reception operation of stopping or restoring the reception operation for a predetermined time. Wireless terminals are disclosed.

[0005]

However, in the prior art, when trying to use a mobile phone, there were cases where the battery was completely discharged and could not be used.

According to Japanese Patent Laid-Open No. 4-355524, although the effect of battery saving is recognized, it cannot be applied to use in a sensitive zone.

Therefore, an object of the present invention is to avoid the situation where the battery cannot be used because it is completely discharged, and when the battery level is low, the time until the battery is completely discharged can be extended. It is to provide a battery saving device for a machine.

[0008]

In order to solve the above-mentioned problems, the present invention provides a battery remaining amount detecting means according to claim 1 and a battery remaining amount detecting means in the standby reception state, wherein the battery remaining amount is And a battery supply stopping means for stopping the supply of the battery to the wireless device when it is detected that the set value reaches one set value.

Further, in claim 2, when the battery remaining amount detecting means and the battery remaining amount detecting means detect that the battery remaining amount has reached the second set value in a call state, a prediction sound is issued. And a call ending unit for forcibly ending the call after that.

Further, according to a third aspect of the present invention, when the remaining battery amount detecting means and the remaining battery amount detecting means detect that the remaining battery amount has reached the third set value in the standby reception state, the wireless device A battery intermittent supply means for intermittently supplying the battery to the battery.

Further, in claim 4, when the remaining battery amount detecting means and the remaining battery amount detecting means detects that the remaining battery amount has reached the first set value in the standby reception state, the wireless device Battery supply stop means for stopping the supply of the battery to the battery, and when the remaining battery level detection means detects that the remaining battery level has reached the second set value in a call state, a forecast sound is emitted and the call is thereafter performed. When the battery remaining amount detection means detects that the battery remaining amount reaches the third set value in the standby reception state, the battery is intermittently supplied to the wireless device. And intermittently supplying the battery, and the set value of the battery remaining amount is
It is characterized in that it is set larger in the order of second and first.

[0012]

According to the first aspect of the present invention, when the battery remaining amount reaches the first set value in the standby reception state, the supply of the battery to the wireless device is stopped.

According to the second aspect of the present invention, when the remaining battery level reaches the second set value in the call state, a forecast sound is emitted and then the call is forcibly terminated.

According to the third aspect, when the remaining battery amount reaches the third set value in the standby reception state, the battery is intermittently supplied to the wireless device.

According to the fourth aspect, first, when the remaining battery level reaches the third set value in the standby reception state, the battery is intermittently supplied to the wireless device, and the remaining battery level in the talking state. When the amount reaches the second set value which is smaller than the third set value, a forecast sound is emitted and then the call is forcibly terminated, and the remaining battery level in standby mode is smaller than the second set value. When the set value reaches 1, the battery supply to the radio is stopped.

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a block diagram of an embodiment of a battery saving device for a mobile wireless device according to the present invention.

The battery saving device of a mobile radio device includes a transmitting / receiving antenna 1, a telephone circuit section 2, a switch circuit section 3, and a battery 4 for supplying power to the telephone circuit section 2 via the switch circuit section 3. An A / D converter 5 for converting the detection voltage of the battery 4 into a digital value;
A remaining amount detection unit 6 that detects the remaining amount of the battery based on the output of the D / D converter 5, and various ON / OFF control and call control of the battery 4 according to the remaining amount detected by the remaining amount detection unit 6. It comprises a control unit 7 for performing the above, a prediction sound generation unit 8 for generating a prediction sound under the control of the control unit 7, and manual switch units 9, 10 for turning on or off the output of the control unit 7.

In this structure, the telephone circuit section 2 is not restricted by the control section 7 when the manual switch section 10 is on, and is not restricted when it is off.

Further, when the manual switch section 9 is turned on, the telephone circuit 2 is restricted by the control section 7 from the power supply from the battery 4, but the remaining capacity of the battery 4 is sufficient (the third set value which will be described later is set). When the amount exceeds the amount) or the manual switch unit 9 is off, the switch in the switch circuit 3 is always closed, so that the voltage of the battery 4 is supplied to the telephone circuit 2 and the call and standby reception similar to the conventional device are possible. Is.

The remaining amount detecting section 6 detects the remaining amount based on the voltage data of the battery 4 converted into a digital value through the A / D converter 5. For example, the voltage at the time of 100% charging and the lower limit voltage of use (0%) are set in advance, and the digital value conversion voltage that has just been input is located on which side between the voltage at the time of 100% charge and the lower limit voltage of use. Calculate whether there is, and output the result as a percentage of the remaining amount.

FIG. 2 is a characteristic diagram of remaining battery power versus elapsed time. If you keep the power on like this, the battery level will gradually decrease. Although the characteristic is a straight line in FIG. 2, the present invention is not limited to this, and the present invention can be applied to a curved line as long as the characteristic is gradually reduced.

The manual switch section 9 is normally set to the ON side. However, when it is desired to forcibly cancel the ON / OFF control, the switch circuit 3 is turned off by turning the manual switch section 9 OFF. 7 is released, the switch circuit 3 is closed and the voltage of the battery 4 is changed to the switch circuit 3
Is supplied to the telephone circuit 2 via.

Further, the control unit 7 performs various operations as described below based on the battery remaining amount data input from the remaining amount detecting unit 6.

The operation of this battery saving device will be described below. In advance, the first set value of the remaining battery level is 5%, the second set value is 10%, and the third set value.
The set value is 30%. The set value is not limited to this, but it is necessary to satisfy the relationship of the third set value> the second set value> the first set value.

In the initial state, the manual switch 9,
Both 10 are set to ON.

First, the case where the remaining battery amount reaches the first set value (5%) in the standby reception state will be described. FIG. 3 is a characteristic diagram of remaining battery capacity versus time when the remaining battery capacity reaches the first set value.

That is, the control unit 7 closes the switch circuit 3 and supplies the voltage of the battery 4 to the telephone circuit 2 as it is until the remaining battery level reaches the first set value, but the remaining battery level reaches the first set value. When it reaches (point A in the figure),
The control unit 7 opens the switch in the switch circuit 3 so that the voltage of the battery 4 is not supplied to the telephone circuit 2. Therefore, although the telephone cannot be used, the minimum battery remaining amount (for a call for about 5 minutes) can be secured. Using the minimum battery, the manual switch unit 9 may be turned off in order to perform standby reception or call (point B in the figure).

Next, a case where the remaining battery amount reaches the second set value (10%) in the call state will be described. FIG. 4 is a characteristic diagram of remaining battery capacity versus time when the remaining battery capacity reaches the second set value.

That is, when the standby state is changed to the call state (point C in the same figure) and the remaining battery level reaches the second set value during the call (point D in the same figure), the control unit 7 makes a prediction sound. The generation unit 8 is activated to generate a forecast sound for several seconds. This forecast sound allows the user to know that the call is about to be disconnected and inform the other party to that effect. Then, after a certain time has passed since the forecast sound was generated (for example, 15 seconds later; E in the figure)
At the point), the control unit 7 forcibly terminates the call to the telephone circuit unit 2.

Next, a case where the battery remaining amount reaches the third set value (30%) in the standby reception state will be described. FIG. 5 is a battery residual amount vs. time characteristic diagram when the battery residual amount reaches the third set value, and FIG. 6 is a schematic explanatory diagram of an operation when the battery residual amount reaches the third set value.

That is, the control unit 7 closes the switch in the switch circuit 3 and supplies the voltage of the battery 4 to the telephone circuit 2 as it is until the battery remaining amount reaches the third set value. When the set value is reached (point F in the figure), the control unit 7 periodically turns on / off the switch in the switch circuit 3 to intermittently supply the battery voltage to the telephone circuit unit 2, and then to the battery. When the remaining amount reaches the first set value (point A in the figure), the control unit 7
Opens the switch in the switch circuit 3 so that the voltage of the battery 4 is not supplied to the telephone circuit 2. This ensures a minimum battery power (for a call of about 5 minutes).

FIG. 6 shows that after the battery level reaches the third set value, the standby reception is turned off for 1 minute, and then 1
The figure shows a state in which standby reception is repeatedly turned on and off every minute, such as being turned on for one minute and then turned off for one minute.

Therefore, if there is an incoming call in the OFF state (point G in the figure), it cannot be received, but after about 1 minute (H in the figure).
If there is a re-incoming call at (point), it is in the standby state and the possibility of connection is increased.

There may be a case where it is necessary to talk during this off-state period. In that case, either the manual switch 9 is turned off (when the battery level is between the set values 3 and 2), or When both the manual switches 9 and 10 are turned off (when the remaining battery level is less than the set value 2), compulsory communication is possible.

[0035]

According to the first aspect of the present invention, when the battery remaining amount detecting means detects that the battery remaining amount has reached the first set value in the standby reception state, the battery supply stopping means is wirelessly activated. Since the supply of the battery to the machine is stopped, it is possible to avoid the situation where the battery cannot be used due to the complete discharge of the battery.

According to the invention of claim 2, in the call state,
When the battery remaining amount detecting means detects that the battery remaining amount has reached the second set value, the battery supply stopping means generates a forecast sound and then the call is forcibly ended, so that the battery is completely discharged. The call can be terminated before discharging, and the final greeting can be given to the other party immediately before ending the call.

According to the third aspect of the present invention, when the battery remaining amount detecting means detects that the battery remaining amount has reached the third set value in the standby reception state, the battery supply stopping means notifies the wireless device. Since the battery is supplied intermittently, it is possible to extend the time until the battery is completely discharged.

According to the invention of claim 4, the set value of the battery remaining amount is set larger in the order of the third, second and first, and all the functions of the first to third aspects are provided, so that the standby reception state and When the remaining battery power becomes low in any of the call states, it is possible to prolong the time until the battery is completely discharged, and it is possible to avoid a situation in which the battery cannot be used due to the battery being completely discharged.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of an embodiment of a battery saving device for a mobile wireless device according to the present invention.

FIG. 2 is a characteristic diagram of remaining battery power versus elapsed time of the same device.

FIG. 3 is a characteristic diagram of remaining battery power versus time when the remaining battery power of the device reaches a first set value.

FIG. 4 is a characteristic diagram of remaining battery capacity versus time when the remaining battery capacity of the device reaches a second set value.

FIG. 5 is a characteristic diagram of remaining battery capacity versus time when the remaining battery capacity of the device reaches a third set value.

FIG. 6 is a schematic explanatory diagram of an operation when the remaining battery level of the device reaches a third set value.

[Explanation of symbols]

 1 transmitting / receiving antenna 2 telephone circuit section 3 switch circuit section 4 battery 5 A / D converter 6 remaining amount detecting section 7 control section 8 forecast sound generating section

Claims (4)

[Claims] 1. A battery remaining amount detecting means, and when the remaining battery amount detecting means detects that the remaining battery amount has reached a first set value in a standby reception state, supplies a battery to a wireless device. A battery saving device for a mobile wireless device, comprising: a battery supply stopping means for stopping. 2. A battery remaining amount detecting means and, when the remaining battery amount detecting means detects that the remaining battery amount has reached a second set value in a call state, a prediction sound is emitted and thereafter the call is forced. A battery saving device for a mobile wireless device, comprising: a call ending means for ending the call. 3. A battery remaining amount detecting means, and when the remaining battery amount detecting means detects that the remaining battery amount has reached a third set value in the standby reception state, supplies the battery to the wireless device. A battery saving device for a mobile wireless device, comprising: an intermittent battery supply means for intermittent operation. 4. A battery remaining amount detecting means and a battery supply to a wireless device when the remaining battery amount detecting means detects that the remaining battery amount has reached a first set value in a standby reception state. When the battery remaining amount detecting means for stopping and the remaining battery amount detecting means detects that the remaining battery amount has reached the second set value in a call state, a warning sound is emitted and then the call is forcibly ended. Intermittent battery supply for intermittently supplying the battery to the wireless device when the battery remaining amount detecting device detects that the battery remaining amount has reached the third set value in the end unit and the standby reception state. Means for increasing the set value of the remaining battery amount in the order of the third, second and first steps, and the battery saving device for a mobile wireless device.