JP3525864B2 - Automatic power-off system for mobile phones - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic power supply for automatically turning off the power of a mobile phone without using human hands only when the mobile phone is brought to a specific place in an automobile / mobile phone system. Off system.

[0002]

2. Description of the Related Art In conventional automobile / mobile phone systems,
It did not consider any adverse effects on the other electronic devices caused by the radio waves emitted from the mobile phone, and did not consider a system that automatically turns off the power when the mobile phone enters an unfavorable place. .

[0003]

The reason is that no consideration is given to the fact that the influence of the radio waves emitted from the mobile phone adversely affects the operation of other electronic devices. .

The second problem is the moral problem with the surroundings caused by the use of mobile phones in public places.

The reason for this is that due to the widespread use of automobiles and mobile phone systems, it is possible to receive calls in any place in underground malls and buildings, so no consideration is given to others around the mobile phone system. Because of that.

An object of the present invention is to solve the above-mentioned conventional problems and not to adversely affect the operation of other electronic equipment.
It is another object of the present invention to provide an automatic power-off system that forcibly and automatically turns off the power supply of a mobile phone regardless of a person's will so as to consider others and improve morals.

[0007]

An automatic power-off system for a mobile phone according to the present invention is a mobile phone, a base station that wirelessly communicates with the mobile phone, and an exchange that controls exchange of the mobile phone via the base station. A weak electric field area that is equipped with equipment, another exchange equipment that communicates with the exchange equipment, and a database that registers and updates the power supply state of the mobile phone, and is configured to block radio waves from the base station to some extent is portable. Power-off information notifying wireless means for radiating power-off information for notifying the mobile phone of the power-off area for turning off the power of the phone to the power-off area by radio waves, and the mobile phone turning off the power. A reporting means for entering the area, receiving the power-off information, and reporting to the exchange facility that the power-off area is present; Upon receiving the notification, the exchange facility transmits a power-off instruction, which is an instruction to turn off the power supply of the mobile phone, to the mobile phone via the base station, and the mobile phone supplies the power-off instruction. An automatic power-off means for automatically turning off the power in response to an off instruction; and a power-off state of the mobile phone on the database after the mobile phone automatically turns off the power in response to the power-off instruction. means for setting the power-off area existing in a state showing a state of existing in the area, the mobile
Upon receiving the power off instruction, the phone automatically turns off.
The replacement facility is
Incoming call from the subscriber accommodated in the equipment to the mobile phone
When receiving the request of
Change the power status of the handset from the power off area
Power off, which indicates a condition to stop staying in the power off area
Equipped with a power status rewriting means that rewrites the area
The mobile phone is turned on by the automatic power-off means.
When the user manually turns on the turned off power,
The exchange facility is requested to turn on the power, which is a request to turn on the power.
And the exchange facility receives the power-on request,
Search the power status of the mobile phone from the database
The power status of the searched mobile phone
The mobile phone responds to the phone and the mobile phone responds to the mobile phone.
The power status of the phone is in the power off area
The mobile phone, keep the power on and answer
The power status of the mobile phone is
If it is in the middle state, the operation to turn off the power of the mobile phone is performed.
It is characterized by generating a guidance voice for prompting the user to make a work .

[0008]

[0009]

[0010]

[0011]

[0012]

[0013]

[0014]

Furthermore, the automatic power-off system for a mobile phone of the present invention is characterized in that the power-off area is a hospital.

The automatic power-off system for a mobile phone according to the present invention is characterized in that the power-off area is a boarding gate of an airport.

Furthermore, the automatic power-off system for a mobile phone according to the present invention is characterized in that the power-off area is a concert hall.

Further, the automatic power-off system for a mobile phone of the present invention is characterized in that the power-off area is a movie theater.

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION Next, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a configuration block diagram of an embodiment of the present invention, FIG. 2 is a diagram for explaining the configuration of a radio wave shield, and FIG.
4 is a block diagram showing the configuration of a power-off information notification radio, and FIG.
[Fig. 3] is a block diagram showing the configuration of a mobile phone.

Referring to FIG. 1, the embodiment of the present invention includes a radio wave shield 100, a power-off information notifying radio 110,
The mobile phone 200, the exchange facility 300, the database 400, and the base station 500 are provided.

The radio wave shield 100, as shown in FIG.
The power-off, which is an area for turning off the power of the mobile phone 200, is configured to block radio waves from the outside to some extent as when the mobile phone 200 enters a weak electric field area, for example, a boarding gate of a hospital or an airport. It corresponds to the area.

The power-off information notifying radio 110 is provided in the radio wave shield 100, and receives power-off information, which is information for notifying the mobile phone 200 of the power-off area, from the exchange facility 300, as shown in FIG. Receiver 111
And a transmitter 112 that transmits this power-off information, and the power-off information from the transmitter 112 wirelessly to the mobile phone 200.
And an indoor antenna 113 for transmitting the power-off information to the mobile phone 200.

The mobile phone 200, as shown in FIG.
High frequency unit 201, electric field level / power-off information check circuit 202, first memory unit 203, second memory unit 2
04, the first waveform (code) matching circuit 205, the second waveform (code) matching circuit 206, the display display control unit 2
07, the voice reproduction start control unit 208, and the voice memory unit 2
09, a speaker 210, a timer 211, and a power supply control unit 212.

The high frequency section 201 transmits and receives a radio signal to and from the base station 500 and receives a radio signal including the power off information from the power off information notifying radio 110.

Electric field level / power-off information check circuit 2
02 regularly checks the received electric field level and also periodically checks the presence / absence of power-off information notified from the power-off information notification radio device 110.

The first memory unit 203 stores in advance a power-off instruction waveform (code) which is a radio wave waveform (code) for instructing the mobile phone to turn off the power.

The second memory unit 204 cancels the presence of the mobile phone in the power-off area and turns off the power in the power-off area (hereinafter referred to as power-off area cancellation). A power-off area in-zone cancellation instruction waveform (code), which is a radio wave waveform (code) that instructs the user to do so, is stored beforehand.

The first waveform (symbol) collating circuit 205 compares and collates the power-off instruction waveform (symbol) received from the switching equipment 300 with the power-off instruction waveform (symbol) stored in advance in the first memory section. , Notify the verification result.

The second waveform (code) matching circuit 206 receives the power-off area presence cancellation instruction waveform (code) received from the switching equipment 300 and the power-off area presence cancellation instruction previously stored in the second memory unit 204. The waveform (code) is compared and collated, and the collation result is notified.

The power supply control section 212 includes a first waveform (code) matching circuit 205 or a second waveform (code) matching circuit 206.
When the matching result is received from the control unit, the mobile phone 200 is controlled to be turned off or on. Timer 2
Reference numeral 11 is a timer for turning off the power.

The display display control unit 207 displays the display display information including the message regarding the power-off from the exchange facility 300.

The voice memory unit 209 stores in advance a user guidance message including a message prompting the user of the mobile phone 200 to cancel the presence in the power-off area.

The voice reproduction activation control unit 208 is based on the matching result from the first waveform (code) matching circuit 205 or the second waveform (code) matching circuit 206, and the switching equipment 300.
The voice memory unit 2 receives the voice reproduction information transmitted from
The speaker 210 notifies the user of the corresponding user guidance message stored in 09.

When the mobile phone 200 receives the matching check result from the first waveform (code) matching circuit 205,
Power-off area presence information indicating that the mobile phone 200 is in the power-off area (hereinafter referred to as power-off area) and subscriber ID (identification number) information of the mobile phone 200, The high frequency unit 201 transmits the data to the database 400 via the base station 500 and the exchange facility 300.

Further, the portable telephone 200 has a function of transmitting a power-on request to the exchange facility 300 when the user manually turns on the power from a power-off state. It has a function to receive a power-on request response that includes information indicating that the power-off area is out of service, and a function to determine whether the power-off area is in the received power-on request response. , If the power-off area is released, turn on the power of the mobile phone. If the power-off area is not released, the mobile phone displays a user guidance message prompting the user to turn off the power. Play audio.

The exchange facility 300 constantly transmits the power-off information, which is information for informing the mobile phone 200 of the power-off area, to the power-off information notifying radio 110.

Also, the exchange facility 300 is the mobile telephone 20.
When the power-off area in-zone information and the subscriber ID information are received from 0, a power-off instruction, which is an instruction to turn off the power of the mobile phone 200, is transmitted via the base station 500 to the mobile phone 2.
00, and a power-off area in-zone registration request, which is a request for registering the received power-off area in-zone information and subscriber ID information in the database 400.

In addition, after the power-off area in-zone information and the subscriber ID information are registered in the database 400, the exchange facility 300 sends a message to the subscriber from another exchange facility (not shown) other than the exchange facility 300. When there is an incoming call, it has a function of making a status inquiry to the database 400 in order to know the power status of the mobile phone of the subscriber using the subscriber ID as an index, and a response as a response from the database 400 to the status inquiry. Receive information,
When the response information includes information in the power-off area, it has a notification means for notifying other other switching equipment by voice or the like that the mobile phone of the subscriber is in the power-off area. .

Further, the exchange facility 300 includes the database 4
In order to turn on the power supply of the mobile phone by changing the power supply status of the mobile phone corresponding to the subscriber ID on 00 from the status in the power off area to the status in which the power off area is released, The power-off area in-zone release request transmitted by dialing the subscriber ID of the mobile phone and the special number for power-off area in-zone release by remote control from the exchange facility of
A power-off area in-zone cancellation registration request for rewriting the state in the power-off area in-zone registered on 0 to the power-off area in-zone cancellation state can be transmitted to the database 400.

Also, the switching equipment 300 is such that when the user of the mobile phone manually turns on the power, the exchange equipment 300 sends a subscriber ID via the base station 500 from the mobile phone.
When the power-on request including information is received, the database 4
In order to inquire the power status of the mobile phone registered on 00, the subscriber ID included in the received power-on request can be indexed as an index.
A power-on request is transmitted to the database 400, and the power-on request response from the database 400 regarding the power status of the mobile phone corresponding to the subscriber ID (whether the power-off area is released or in the power-off area) To receive as.

The base station 500 directly controls the mobile phone 200 to turn off the power, and also the mobile phone 20.
The signal between 0 and the switching equipment 300 is relayed.

The database 400 receives a power-off area presence area registration request including subscriber ID information and power-off area presence information transmitted from the switching equipment 300, and receives the received subscriber ID and power-off area presence information. Register in-service information.

Further, the database 400 is such that when an incoming call arrives at the subscriber from another switching facility, the subscriber I
A status inquiry from the switching equipment 300 is received to know the power supply status of the mobile phone of the subscriber using D as an index, and the subscriber ID included in the status inquiry is used as an index to register the subscriber ID already registered.
The power status of the mobile phone corresponding to is read out, and the read power status of the mobile phone is returned to the exchange facility 300 as a response to the status inquiry.

Also, the database 400 receives a power-off area presence cancellation registration request including a subscriber ID from another switching facility, and displays the power state of the mobile phone corresponding to this subscriber ID as the power-off area presence. It has a function to rewrite from the in-service state to the power-off area in-range release state, and after rewriting the power state of the mobile phone to the power-off area in-zone release state, power is turned off to the exchange facility 300. A cancellation response as a response to the area presence cancellation registration request is returned.

Further, the database 400 receives a power-on request including a subscriber ID obtained via the base station 500 and the switching equipment 300 when the power-on operation is manually performed from the mobile phone, and the subscriber ID is received. With the index as an index, a function of reading the power state of the mobile phone (release of the power-off area or presence of the power-off area) and transmitting a power-on request response to which the read power state is added to the exchange facility 300 is provided. Have.

Next, the operation of the embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 5, FIG. 6 and FIG. 7 are flow charts of the operation.

The operation will be described mainly with reference to FIGS. 5, 6, and 7 and with reference to FIGS. 1, 2, 3, and 4.

First, the power supply of the mobile phone 200 is turned on (step 701), whereby the mobile phone 200 is turned on.
The standby operation is started between the base station 500 and the switching equipment 300 (step 702). Further, the call may be started here (step 702).

The exchange facility 300 always notifies the power-off information notifying radio 110 of the power-off information (step 7).
03).

Receiving unit 1 of power-off information notifying radio 110
11 receives the power-off information from the exchange facility 300 and sends this power-off information to the transmitter 112. Transmission unit 112
Notifies the power-off information from the receiving unit 111 to the radio wave shield 100, that is, the power-off area, which is a weak electric field area where the electric field level of the electric wave is low, through the indoor antenna (ANT) 113 by radio wave emission (step 704).

The electric field level / power-off information check circuit 202 of the mobile phone 200 in the power-on state periodically checks the presence / absence of power-off information notified by the power-off information notification radio 110 (step). 70
5).

This mobile phone 200 enters the power-off area, that is, the radio wave shield 100 and stays there (hereinafter,
In the power-off area, the electric field level / power-off information check circuit 202 detects a decrease in the received electric field level and receives the power-off information (step 705).
High).

The cellular phone 200 which has detected the decrease in the received electric field level and has received the power-off information has the first information including the received electric field level decrease information indicating the decrease in the received electric field level, the power-off information, and the subscriber ID. The declaration is transmitted to the exchange facility 300 via the base station 500 (steps 706 and 707).

Upon receiving the first declaration from the mobile phone 200 via the base station 500, the exchange facility 300 determines that the mobile phone 200 desires to be powered off, and gives an instruction to power off the mobile phone 200. Then, the power-off instruction is transmitted to the mobile phone 200 via the base station 500 (steps 708 and 709). This power-off instruction includes display display information and audio reproduction information.

This display display information is information for displaying on the display of the mobile phone 200 that the power supply of the mobile phone 200 is about to be turned off until the mobile phone 200 is turned off by the power-off instruction. .

Further, this voice reproduction information is stored in the mobile phone 2.
00 is information for notifying by voice from the speaker 210 of the mobile phone 200 that the power of the mobile phone will soon be turned off until the power is turned off by 00.

When the mobile phone 200 receives the power-off instruction from the exchange facility 300, the first mobile phone 200
The waveform (code) collation circuit 205 compares and collates the waveform (code) of the radio wave indicated by the received power-off instruction with the power-off instruction waveform (code) stored in advance in the first memory unit (step 710).

As a result of the collation, if they match (match at step 710), the mobile phone 200 sends a power-off instruction response, which is a response to the power-off instruction, to the base station 50.
Return to the switching equipment 300 via 0 (step 711)
And step 712). The power-off instruction response includes the subscriber ID of the mobile phone 200 and the power-off area in-zone information indicating that the mobile phone 200 is in the power-off area.

The exchange facility 300 receives the power-off instruction response from the mobile phone 200 and completes the communication control for the mobile phone 200. Even after this is completed, the replacement facility 300
Keeps transmitting the power-off information to the power-off information notification radio device 110.

Next, the mobile phone 200 sends the display display information included in the power-off instruction to the display display control section 207, and the display display control section 207.
Displays a message on the display indicating that the power of the mobile phone will be turned off soon (step 71).
3). Furthermore, the mobile phone 200 sends the audio reproduction information included in the power-off instruction to the audio reproduction activation control unit 208, and the audio reproduction activation control unit 208 is informed by the audio memory unit 209.
The voice is read from and the voice indicating that the power supply of the mobile phone is about to be turned off is reproduced by the speaker 210 (step 714).

Next, the mobile phone 200 activates the timer 211 for performing the power-off control (step 7).
15).

The timer 211 checks whether the set predetermined time has passed (step 716), and when the predetermined time has passed (high in step 716), notifies the power control unit 212 that the predetermined time has passed. To do.

The power supply controller 212, which has received the notification from the timer 211, turns off the power supply of the portable telephone 200 (step 717).

In step 712, the mobile phone 20
The switching equipment 300 that has received the power-off instruction response from 0
In order to register in the database 400 that the mobile phone 200 is in the power-off area, the power-off area presence registration request including the power-off area presence information and the subscriber ID received in the power-off instruction response is received. The database 400
(Step 801).

When the database 400 receives the power-off area presence area registration request from the exchange facility 300, the subscriber ID and the power-off area presence information included in the power-off area presence area registration request are registered as subscriber data. (Step 802).

Another exchange facility 301 is the mobile phone 200.
Requesting the incoming call to the switching equipment 300 (step 80
3), the exchange facility 300 transmits a status inquiry including the subscriber ID to the database 400 in order to inquire about the power supply status of the mobile phone 200 (step 80).
4).

When the database 400 receives the status inquiry from the exchange facility 300, it reads the power status of the mobile phone 200 corresponding to the subscriber ID (here, the power-off area in-zone information) from the subscriber data and reads it. The issued power status (information in the power-off area) is used as the status inquiry response to the status inquiry in the exchange facility 30.
It is transmitted to 0 (step 805).

Upon receiving the status inquiry response from the database 400, the exchange facility 300 notifies the other exchange facility 301 by voice guidance that the mobile phone 200 is in the power-off area (step 806). .

The subscriber of the other exchange facility 301, who receives the voice guidance, operates the mobile telephone 20 by remote control.
A request for canceling the presence of the power-off area is transmitted to the switching equipment 300 by dialing a subscriber ID of 0 and a special number for canceling the presence of the power-off area (step 807).

The power-off area in-zone release request changes the power state of the mobile phone of the subscriber ID registered in the database 400 from the power-off area in-zone state to the power-off area in-zone release state. It is a request to rewrite.

The exchange facility 300 transmits the power off area residing registration request to the database 400 (step 808).

When the database 400 receives the power off area in-zone release registration request from the switching equipment 300, the power state of the mobile phone corresponding to the subscriber ID is changed from the previously registered power off area in the zone. , Power off area is rewritten to release the area (step 809). And
The database 400 returns a cancellation response, which is a response to the power-off area presence cancellation registration request, to the exchange facility 300 (step 810).

Upon receiving the release response from the database 400, the exchange facility 300 transfers this release response to the other exchange facility 301 (step 811), and the other exchange facility 30
All communication control by remote control from 1 is terminated.

The mobile phone 200 turns off its own power in response to a power-off instruction from the exchange facility 300 (step 7).
17) After that, when the user manually turns on the power of the mobile phone 200 (step 900), the mobile phone 200 sends a power-on request including the subscriber ID via the base station 500. It is transmitted to the exchange facility 300 (step 901).

Upon receiving the power-on request from the mobile phone 200, the exchange facility 300 transmits this power-on request to the database 400 to inquire about the power status of the mobile phone 200 registered in the database 400 (step 902). ).

When the database 400 receives the power-on request from the exchange facility 300, the mobile phone 2 uses the subscriber ID included in the power-on request as an index.
00 power status (here, power off area cancellation)
Read out. Then, the database 400 returns a power-on request response as a read result to the exchange facility 300 (step 903). This power-on request response includes the subscriber ID of the mobile phone 200 and its power state (here, power-off area presence cancellation information).

The exchange facility 300 receives the power-on request response from the database 400 and transfers this power-on request response to the mobile phone 200 via the base station 500 (step 904).

When the mobile phone 200 receives the power-on request response from the exchange facility 300, the second waveform (code) matching circuit 206 of the mobile phone 200 releases the power-off area presence in the received power-on request response. The radio wave waveform (symbol) of (1) and the power off area in-zone release waveform (symbol) stored in advance in the second memory unit 204 are compared and collated (step 905).

As a result of the matching, if they match (match in step 905), the second waveform (code) matching circuit 206
The power supply control unit 212 sends a command to continue powering on the mobile phone 200, and the power supply control unit 212 causes the mobile phone 200 to turn on.
The power-on state of is held (step 906).

As a result of the collation, if there is a mismatch (mismatch in step 905), for example, if the received power-on request response includes the power-off area in-zone information, the second
The waveform (code) matching circuit 206 notifies the voice reproduction activation control unit 208 of an instruction to generate a guidance voice for prompting the user to turn off the power. In response to this instruction, the voice reproduction activation control unit 208 reads the relevant voice from the voice memory unit 209, and reproduces the guidance voice prompting the power-off operation from the speaker 210 (step 90).
7).

The user of the mobile phone 200 listens to the guidance voice and manually turns off the power of the mobile phone 200 (step 908).

In the above, the case where the number of the radio wave shields corresponding to the power-off area is one has been described, but the present invention is not limited to this, and the case of the plurality of radio wave shields corresponding to the plurality of power-off areas is described. Also, the present invention can be applied.

[0085]

As described above, the present invention has the following effects.

Since the present invention is configured so that the mobile phone itself turns off the power in response to an instruction issued by the exchange equipment that has received a report from the mobile phone, the radio waves emitted from the mobile phone affect other electronic devices. Is effective to prevent malfunction of other electronic devices.

Further, according to the present invention, since the mobile phone itself is configured to turn off the power, it is impossible to make an incoming call at a place where the ringing tone is concerned (for example, a concert hall, a movie theater, etc.). Therefore, there is an effect that it is possible to prevent annoyance to others.

Further, the present invention has means for notifying the caller why the power is off when the mobile phone is automatically powered off and then the incoming call is made to the subscriber. Since it is configured so that the caller can be prevented from being confused and the service to the caller can be improved.

Furthermore, when the portable telephone is brought to a specific place and the power is automatically turned off and then the power is intentionally turned on manually, the state of the power registered in the database in advance is changed. Since the mobile phone can be powered on by remotely changing it from the replacement equipment, there is an effect of preventing mischief due to the operation of the mobile phone.

[Brief description of drawings]

FIG. 1 is a configuration block diagram of an embodiment of the present invention.

FIG. 2 is a diagram illustrating a configuration of a radio wave shield.

FIG. 3 is a configuration block diagram of a power-off information notification radio device.

FIG. 4 is a configuration block diagram of a mobile phone.

FIG. 5 is a flowchart of an operation.

FIG. 6 is a flowchart of an operation.

FIG. 7 is a flowchart of an operation.

[Explanation of symbols]

100 radio wave shield 110 Power-off information notification radio 200 mobile phones 201 High frequency part 202 Electric field level / power off information check circuit 203 First memory unit 204 Second memory unit 205 First Waveform (Code) Matching Circuit 206 Second Waveform (Code) Matching Circuit 207 Display control unit 208 Voice reproduction start control unit 209 Voice memory unit 210 speaker 211 timer 212 Power supply control unit 300 exchange equipment 400 databases 500 base stations

─────────────────────────────────────────────────── ─── Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) H04Q ^7/ 00-7/38 H04B ⁷ /24-7/26

Claims (5)

(57) [Claims] 1. A mobile phone, a base station that wirelessly communicates with the mobile phone, a switching facility that controls exchange of the mobile phone via the base station, and another switching facility that communicates with the switching facility, The mobile phone is provided with a database for registering and updating the power status of the mobile phone, and the weak electric field area configured to cut off radio waves from the base station to some extent is a power off area for turning off the power of the mobile phone. Power off information for notifying the power off information to the power off area by radio waves, and the mobile phone enters the power off area and receives the power off information to receive the power off area. The filing means for declaring that the customer is in the area to the exchange facility and the exchange facility that has received the report from the filing means are instructed to turn off the power of the mobile phone. A power-off instruction transmitting means for transmitting a certain power-off instruction to the mobile phone via the base station; an automatic power-off means for automatically turning off the power when the mobile phone receives the power-off instruction; After the mobile phone automatically turns off in response to the power-off instruction, the power status of the mobile phone in the database is changed to the power-off area existing state indicating that the mobile phone is in the power-off area. Setting means and the mobile phone
Machine automatically turned off in response to the power off instruction.
In the middle of the operation, the exchange equipment is replaced with the other exchange equipment.
It is necessary to make incoming calls from the accommodated subscribers to the mobile phone.
When receiving the request, the mobile phone on the database
The power status of the
Power-off error indicating a condition to stop being in the area
A. Power supply state rewriting means for rewriting to the in-range cancellation state is provided, and the mobile phone is turned off by the automatic power off means.
Power is turned on manually by the user.
A power-on request, which is a request to turn on the power, is sent to the exchange facility.
In response to the power-on request, the replacement facility
Search the power status of the mobile phone from the database,
The power status of the searched mobile phone is displayed on the mobile phone.
To the mobile phone, and the mobile phone responds to the mobile phone.
If the power status of the machine is in the power off area
If the answer is yes, keep the mobile phone power on.
The power status of the mobile phone is in the power-off area medium state.
If the mobile phone is in
An automatic power-off system for mobile phones, which generates a guidance voice to prompt the user . 2. The automatic power-off system for a mobile phone according to claim 1, wherein the power-off area is a hospital. 3. The automatic power-off system for a mobile phone according to claim 1, wherein the power-off area is a boarding gate at an airport. 4. The automatic power-off system for a mobile phone according to claim 1, wherein the power-off area is a concert hall. 5. The automatic power-off system for a mobile phone according to claim 1, wherein the power-off area is a movie theater.