System and method for emergency alarm

1. An emergency alarm system comprising:

a mobile communication terminal to measure and transmit a user's bio signal outside, and to output sound data with a bell sound corresponding to an emergency alarm signal when an emergency alarm signal is received from a health care server; and

a health care server to determine whether or not the user is in an emergency condition based on the user's bio signal and transmit an emergency alarm signal corresponding to a type of emergency when the user is determined to be in an emergency,

wherein the mobile communication terminal comprises:

a bio-signal measurement unit to measure a user's bio signal;

a data storage unit to store sound data notifying a type of emergency;

a communication unit to communicate with the health care server;

a control unit to transmit the bio signal measured by the bio-signal measurement unit through the communication unit and to output one of the sound data with bell sound corresponding to the type of emergency stored in the data storage unit when the emergency alarm signal is received from the health care server;

a data output unit to regenerate the sound data outputted from the control unit into an audible sound and output the audible sound through a speaker; and

a phone-book storage unit to store calling numbers and sound data corresponding to the calling numbers, and

the control unit selects and outputs sound data with a bell sound corresponding to a calling number of an emergency alarm signal based on the data stored in the phone-book storage unit.

2. The emergency alarm system of claim 1 , wherein the control unit outputs the sound data with a maximum volume when the emergency alarm signal is received from the health care server.

3. The emergency alarm system of claim 2 , wherein the mobile communication terminal further comprises a local area radio unit for local area communications, and

when no signal is input for a predetermined time after the control unit outputs the sound data with a bell sound, the mobile communication terminal transmits an emergency-alarm output signal through the local area radio unit, and

the emergency alarm system further comprises an emergency alarm device comprising: a local area radio unit to receive the emergency-alarm output signal from the mobile communication terminal; and an alarm output unit to output an emergency alarm when the emergency-alarm output signal is received through the local area radio unit.

4. The emergency alarm system of claim 1 , wherein the health care server comprises:

a communication unit to receive a bio signal from the mobile communication terminal;

an emergency determination unit to determine based on the bio signal received by the communication unit whether or not the user is in an emergency condition; and

an emergency alarm unit to generate and transmit an emergency alarm signal corresponding to a type of emergency to the mobile communication terminal through the communication unit when the user is determined to be in an emergency condition.

5. The emergency alarm system of claim 4 , wherein the emergency alarm unit analyzes the bio signal and transmits an emergency alarm signal to another calling number based on the analysis.

6. The emergency alarm system of claim 4 , further comprising a message server to generate and transmit a short message service (SMS) message, wherein the emergency alarm unit transmits an emergency alarm signal corresponding to a type of emergency in the SMS message through the message server.

7. The emergency alarm system of claim 6 , wherein the mobile communication terminal further comprises a message parsing unit to parse the received SMS message, and the control unit outputs sound data with a bell sound corresponding to the parsed SMS message.

8. The emergency alarm system of claim 5 , wherein the health care server further comprises a subscriber data storage unit to store a number of a guardian's mobile communication terminal corresponding to a number of the mobile communication terminal, and the emergency alarm unit further transmits information of the mobile communication terminal and the emergency alarm signal to the guardian's mobile communication terminal based on information stored in the subscriber data storage unit.

9. The emergency alarm system of claim 6 , wherein the health care server further comprises a subscriber data storage unit to store a number of a guardian's mobile communication terminal corresponding to a number of the mobile communication terminal, and the emergency alarm unit further transmits information of the mobile communication terminal and the emergency alarm signal to the guardian's mobile communication terminal based on information stored in the subscriber data storage unit.

10. An emergency alarm method in a mobile communication terminal, the emergency alarm method comprising from the mobile communication terminal:

measuring a user's bio signal;

transmitting the bio signal outside and receiving an emergency alarm signal from a health care server, and

outputting sound data with bell sound corresponding to a type of emergency stored in a data storage unit when the emergency alarm signal is received,

wherein the outputting the sound data with the bell sound corresponding to the type of emergency comprises outputting sound data with the bell sound corresponding to a calling number of the received emergency alarm signal.