KR20020069966A - Battery system for implementing emergency call in mobile telephone and method thereof - Google Patents

Abstract

PURPOSE: A battery system for processing an emergency situation call in a mobile terminal and a control method are provided to prevent in case that it is impossible to process the emergency situation call by the dismount and damage of an external battery and the insufficiency of the residual quantity of the battery by embedding a specific emergency battery for processing the emergency situation call and using the embedded emergency battery. CONSTITUTION: An external battery(400) has the first transistor(213) for being turned on according to the input of a power-on key signal and the second transistor(211) for receiving a battery charge voltage according to the turn-on of the first transistor(213), generating an operation power of composition units of a mobile terminal, and being turned on when the generated operation power is inputted. An emergency battery(450) has the third transistor(453) for being turned on according to the input of an emergency situation key signal and the fourth transistor(451) for receiving the battery charge voltage according to the turn-on of the third transistor(453), generating the operation power of the composition units of the mobile terminal, and being turned on when the generated operation power is inputted. A control unit senses the turn-on of the second and fourth transistors(211,451), senses the power-on of the mobile terminal, and checks a residual quantity of the external battery(400) in case that the fourth transistor(451) is turned on. If the residual quantity of the external battery(400) is over a threshold level, the control unit controls the external battery(400) for using the charge voltage of the external battery(400) when processing an emergency situation call.

Description

BATTERY SYSTEM FOR IMPLEMENTING EMERGENCY CALL IN MOBILE TELEPHONE AND METHOD THEREOF}

The present invention relates to a mobile terminal system, and more particularly, to a battery system and a control method for emergency call processing.

1 is a diagram illustrating an emergency call processing system of a conventional mobile communication system.

As the mobile communication system develops, the services provided to the mobile terminals are also being developed in various ways for the convenience of users. Among them, emergency call (GPS) service using the Global Positioning System (GPS) service is implemented. The emergency call service is connected to the emergency center of the mobile communication system by automatically connecting mobile terminal information such as the location information of the mobile terminal to the emergency center of the mobile communication system in an emergency situation, that is, a disaster such as a mountain disaster or a fire. Service to be executed. Such an emergency call processing system for performing an emergency call service will be described with reference to FIG. 1.

First, when a mobile station (MS) 100 requests an emergency rescue service, for example, 119, a mobile switching center (MSC) through a base station subsystem (BSS) 110 ( 120 is connected to the mobile switch 120, the emergency rescue system 150 is located at a location having a minimum distance from the mobile terminal 100, public switching network (PSTN: Public Switching Telephone Network (PSTN) 140 ) To connect the voice call.

Thus, when the mobile terminal 100 and the emergency rescue system 150 is connected to a voice call, the mobile terminal 150 transmits its current location information in a short message, and the short message thus transmitted is It is delivered to the Short Message Center (SMC) 130 and wirelessly provided to the emergency rescue system 150. Here, for the sake of convenience, the case in which the location information of the mobile terminal 100 is transmitted in a short message has been described, but the location information of the mobile terminal 100 may be transmitted in a form other than the short message transmission. Do.

Here, the mobile terminal 100 is provided with a Global Positioning System Receiver (GPSR) that receives position coordinates provided by a Global Positioning System (GPS), thereby providing its own position information. It is characterized in that the detection and storage.

The emergency rescue system 150 includes a control unit 153 for performing overall operations of the emergency rescue system 150, an emergency rescue system connection unit 151 for interfacing with the public switched network 140, and the short message. Short message receiving unit 157 for receiving a short message transmitted from the center 130, geographic information unit 155 for analyzing the location information of the mobile terminal 100 included in the short message, and the control unit 153 According to the control of the mobile terminal 100 and the voice call is connected is composed of an operator performing emergency rescue service and operator terminal 1 (159), ..., operator terminal N (161) for interfacing.

As described with reference to FIG. 1, for emergency call processing, the battery of the mobile terminal 100 is turned on or turned off. Separate power must be supplied for transmission. Here, the battery structure and operation of the mobile terminal 100 will be described with reference to FIGS. 2 and 3.

FIG. 2 is a diagram illustrating a structure of a mobile terminal battery according to the prior art, and FIG. 3 is a flowchart illustrating a process of turning on a mobile terminal battery shown in FIG. 2.

First, referring to a power on process in the mobile terminal 100, when a power key of a keypad (not shown) of the mobile terminal 100 is pressed (311 in FIG. 3). Step 2), the transistor 211 of FIG. 2 is turned on. That is, the power-on key signal PWR_KEY is input to the base terminal of the transistor 211 after passing through resistors and capacitors according to the pressing of the power key. Then, the transistor 211 is turned on due to the provision of a predetermined voltage according to the power key signal, and then the voltage VBATT of the battery is provided to the operating power source Vin of each component of the mobile terminal 100. (Step 313 in FIG. 3). Then, a set voltage connected to the voltage Vin, for example, a voltage of 3.0V, is provided to the collector terminal of the transistor 213. Then, the transistor 211 is turned on and thus the ON_SW_SENSE signal, which detects that the mobile terminal 100 is turned on, is provided to the controller (not shown) of the mobile terminal 100 (step 315 of FIG. 3). Thus, in order for the battery voltage VBATT to be continuously supplied to the voltage Vin after being powered on, the signal provided from the PS_HOLD port shown in FIG. 2 must be kept high (step 317 of FIG. 3). ). The PS_HOLD port is one of a plurality of General Purpose Input Ouputs (GPIOs) provided in the controller. Thus, a high signal is provided through the PS_HOLD port until a power off key is pressed or the voltage of the battery falls below a threshold level.

When the emergency call processing is to be performed using the battery structure described with reference to FIG. 2, battery power supply for the emergency call processing may be divided into two cases.

The first case is when the mobile terminal 100 is in use, that is, the battery voltage VBATT is applied to Vin. Of course, in this case, a separate key for emergency call processing, that is, an emergency call key, of course, must be newly configured in hardware (h / w) on the keypad, and a corresponding pin of the newly configured emergency call key. Is connected to the pin of the general-purpose input and output ports of the control unit. Thus, when the emergency call key is pressed, a signal indicating that the emergency call key has been input is transmitted to the control unit. Accordingly, the control unit operates a worldwide location system block to operate the mobile terminal 100 itself. Location tracking and location information about the tracked location is to be transmitted to the emergency system.

The second case is when the mobile terminal 100 is turned off, that is, the battery voltage VBATT is not applied to the Vin. In this case, since the mobile terminal is turned off, in order for the battery voltage VBATT to be connected to the voltage Vin, the emergency call key must be connected in hardware as in the power-on key portion of FIG. 2. In this case, it was impossible to perform emergency call processing using the conventional battery structure as shown in FIG. 2 because it is possible that the battery voltage VBATT is provided. In addition, when the battery power was exhausted or the battery was separated or destroyed by an impact, it was also impossible to perform emergency call processing using the conventional battery structure shown in FIG. 2.

Accordingly, an object of the present invention is to provide an emergency battery system and method for emergency call preparedness regardless of the use of a battery in a mobile terminal.

The system of the present invention for achieving the above object; A battery system for emergency call preparation of a mobile terminal having an emergency call key for an emergency call request, comprising: a first transistor turned on according to a power-on key signal input, and a battery charging voltage at turn-on of the first transistor; An external battery comprising a second transistor that is turned on when the generated component operating power is input, and a third transistor turned on according to the emergency signal input; And an emergency battery configured to receive a battery charging voltage through turn-on of the third transistor to generate operating power of the mobile terminal component, and to turn on when the generated component operating power is input, and the second battery to turn on. Detects the turn-on of the transistor and the fourth transistor to detect that the mobile terminal is powered on. And a controller configured to check the remaining battery capacity of the external battery when the fourth transistor is turned on, and to control the charging voltage of the external battery to be used for the emergency call processing when the remaining battery level exceeds a threshold level. It is done.

The method of the present invention for achieving the above object; A control method for a battery system for emergency call preparation of a mobile terminal having an emergency call key for emergency call request and having an emergency battery and an external battery for processing the emergency call, the emergency call key Detecting a power-on according to a signal input; checking a battery level of the external battery when detecting the power-on; and if the battery level exceeds a threshold level, a current required for processing the emergency call. Characterized in that the process of controlling to be supplied from the external battery.

1 is a diagram illustrating an emergency call processing system of a conventional mobile communication system.

2 illustrates a structure of a mobile terminal battery according to the related art.

3 is a flowchart illustrating a process of turning on a mobile terminal battery shown in FIG.

4 illustrates a structure of a mobile terminal battery according to an embodiment of the present invention.

FIG. 5 is a flowchart illustrating a process of turning on a mobile terminal battery illustrated in FIG. 4.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that in the following description, only parts necessary for understanding the operation according to the present invention will be described, and descriptions of other parts will be omitted so as not to distract from the gist of the present invention.

4 is a diagram illustrating a mobile terminal battery structure according to an embodiment of the present invention.

5 is a flowchart illustrating a process of turning on a mobile terminal battery shown in FIG. 4.

Here, the emergency battery structure and operation according to an embodiment of the present invention will be described with reference to FIGS. 4 and 5.

First, as shown in FIG. 4, the mobile terminal battery according to an embodiment of the present invention is an emergency battery which is used only during an emergency call processing with an external battery 400 detachable from the outside of the mobile terminal. It is composed of a battery 450. The external battery 400 structure is the same as the battery structure described with reference to FIG. 2, and thus, the external battery 400 structure will not be described.

Next, a power on process of the emergency battery 450 will be described.

When the emergency call key E911l key of the keypad (not shown) of the mobile terminal is pressed (step 511 of FIG. 5), the transistor 451 of the emergency battery 450 is turned on. That is, the emergency call key signal E911_KEY is input to the base terminal of the transistor 451 after passing through resistors and capacitors according to the pressing of the emergency call key. Then, the transistor 451 is turned on due to the provision of a constant voltage according to the emergency call key signal, and then the voltage EXTRA_VBATT of the emergency battery 450 is provided to the operating power source Vin of each component of the mobile terminal. (Step 513 of FIG. 5). Then, a set voltage connected to the voltage Vin, for example, a voltage of 3.0 V, is provided to the collector terminal of the transistor 453. Then, the transistor 453 is turned on, and thus the ON_SW_SENSE_E911 signal, which senses that the mobile terminal is turned on, is provided to the controller (not shown) of the mobile terminal (step 515 of FIG. 3). Then, the mobile terminal controller detects that the emergency call key is input, and accordingly, the controller operates a global location system block to track the location of the mobile terminal itself and the location information on the tracked location. It will be sent to the emergency system.

However, in order for the battery voltage EXTRA_VBATT to continuously provide the voltage Vin after the mobile terminal is powered on, the signal provided from the PS_HOLD_E911 port shown in FIG. 4 is kept high or the external battery is maintained. The signal provided at the PS_HOLD port of 400 must remain high (step 517 of FIG. 5). The PS_HOLD_E911 port is one of a plurality of general purpose input outputs (GPIOs) provided in the controller.

When the mobile terminal is powered on, the controller checks the remaining battery capacity of the external battery 400 even if the power on through the emergency battery 450 is performed (step 527 of FIG. 5). The external battery 400 outputs a high signal to the PS_HOLD port of the external battery 400 and a low signal to the PS_HOLD_E911 port of the emergency battery 450 when it is possible to use the external battery 400. The battery voltage VBATT of 400 is connected to the voltage Vin. Therefore, the emergency call processing is to be performed by the power supply of the external battery 400 (step 529 of FIG. 5).

On the other hand, when the controller checks the remaining battery level of the external battery 400, and if the remaining battery level is determined to be below a threshold level (threshold level), the low signal through the PS_HOLD port of the external battery 400, the emergency A high signal is output through the PS_HOLD_E911 port of the battery 450 so that the battery voltage VBATT of the emergency battery 450 is connected to the voltage Vin (step 519 of FIG. 5). Therefore, the emergency call processing is to be performed by the power supply of the emergency battery 450 (step 521 of FIG. 5).

In addition, the built-in emergency battery voltage (VBATT) can be easily built in a small enough size if it is manufactured in a limit to ensure the minimum amount of current that can be operated only once in an emergency call processing to minimize the size Anyone who has a normal to can think. For example, 45 seconds to one minute of current consumption of the GPS block from the time the emergency call key is entered and the GPS module tracks the location, and then the location of the terminal It can be determined by measuring the terminal current consumption for 1 to 5 minutes.

Meanwhile, in the detailed description of the present invention, specific embodiments have been described, but various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined not only by the scope of the following claims, but also by the equivalents of the claims.

As described above, the present invention has an advantage of eliminating the case where the emergency call processing cannot be performed due to the detachment, the damage of the external battery, the lack of the remaining battery, etc. by using a separate emergency battery for the emergency call processing. In addition, when it is possible to use the external battery while performing an emergency call, the remaining battery capacity may be used to implement a separate battery structure for emergency call even with a small emergency battery.

Claims (6)

A battery system for emergency call preparation of a mobile terminal having an emergency call key for an emergency call request, comprising: A first transistor turned on according to a power-on-key signal input, a battery charging voltage received by turning on the first transistor to generate operating power of the mobile terminal component, and being turned on when the generated component operating power is input; An external battery consisting of two transistors, The third transistor is turned on according to the emergency signal input signal and the battery charging voltage is input by the turn-on of the third transistor to generate operating power of the mobile terminal component, and turn on when the generated component operating power is input. Emergency battery consisting of a fourth transistor, When the mobile terminal is powered on by sensing the turn-on of the second transistor and the fourth transistor, and when the fourth transistor is turned on, the remaining battery of the external battery is checked by checking the remaining battery level of the external battery. And a controller for controlling the charging voltage of the external battery to be used for the emergency call processing. The method of claim 1, The control unit is a battery system, characterized in that to continuously provide a high signal to the external battery or emergency battery in order to continuously supply the operating power of the component. The method of claim 2, And the high signal is provided to an operating power supply of a mobile terminal component of the external battery or emergency battery. The method of claim 1, And a controller configured to control the charging voltage of the emergency battery to be used for the emergency call processing when the remaining battery level is less than or equal to a threshold level. In a control method for a battery system for emergency call prepared by the mobile terminal having an emergency call key for emergency call request, and having an emergency battery and an external battery for the emergency call processing, Detecting a power-on according to the emergency call signal input; Detecting a battery level of the external battery when the power-on is detected; And controlling the current supplied for the emergency call processing from the external battery when the battery level exceeds a threshold level. The method of claim 5, And controlling the current required to process the emergency call from the emergency battery when the battery level is less than or equal to a threshold level.