JP4847293B2 - Mobile terminal device - Google Patents

Description

  The present invention relates to a portable terminal device, and more specifically, when receiving specific data from a car having a smart key function, the user's own operation is influenced by the power supply being turned off or set out of service area. The present invention relates to a portable terminal device which is not given.

  At present, new wireless communication technologies are used in various fields. There are wireless keyless systems called smart keys and wireless fee payments such as ETC in automobiles, and mobile phones can be equipped with non-contact ICs and can be used as a substitute for banknotes. It is desired that this type of portable terminal device does not affect the operation of the automobile.

  Currently, the smart key function installed in automobiles is used for the purpose of opening and closing door locks by keyless automobiles, and does not support communication services or functions with mobile phones. The car does not support the smart key function.

  On the other hand, the use of a mobile phone when driving a car is an individual management, and there are many cases that caused a traffic accident due to the use of a mobile phone. In addition, when riding in a car equipped with a smart key function, examples of malfunctions of the smart key function due to the influence of radio waves when sending or receiving calls or emails on mobile phones have been released. Yes.

  FIG. 3 is a schematic diagram of the smart key system. In the figure, 1 is an automobile and 2 is a smart key. In the automobile 1, reference numeral 11 denotes a keyless unit that automatically opens and closes the keys of the automobile, and reference numeral 12 denotes an LF antenna that is connected to the keyless unit 11 and continuously transmits a request code A (frequency X). Reference numeral 13 denotes an RF receiver that receives the response signal B (frequency Y) from the smart key 2.

  In the smart key 2, reference numeral 21 denotes a battery for operating the circuit, and reference numeral 22 denotes a wireless IC that is operated by the battery 21 and transmits a B signal (frequency Y) to the automobile side 1. Here, the distance that radio waves reach between the automobile 1 and the smart key 2 is about 1 m. The operation of the system configured as described above will be described as follows.

  The keyless unit 11 constantly transmits specific data such as a request code through the LF antenna 12 in order to check whether a smart key exists near the LF antenna (about 1 m range). On the other hand, the smart key 2 always waits to receive the specific data such as the request code. When the specific data such as the request code is received in A of FIG. 3, the individual data stored in the wireless IC 22 ( Security information etc.) is transmitted to the car 1 side (B in FIG. 3).

  The individual data transmitted from the wireless IC 22 is received by the RF receiver 13 of the automobile 1, digitally modulated, and notified to the keyless unit 11. The notified keyless unit 11 analyzes the notified individual data and releases the door lock when it is determined to be the owner.

As a conventional device of this type, a radio wave transmitted from a GPS satellite is received, the moving speed of the mobile phone 3 is measured, and the power switch 4 of the mobile phone 3 is opened and closed by the control means 101 according to the speed. Thus, a technique for controlling the power switch of the mobile phone 3 according to the moving speed of the mobile phone 3 is known (see, for example, Patent Document 1).
JP 2001-127848 (paragraphs 0032 to 0035, FIGS. 1 and 2)

  If the mobile phone is operated while driving a car, the smart key system may malfunction. Also, using a mobile phone while driving a car may cause a traffic accident. Therefore, if the use of a mobile phone can be regulated instead of individual management while driving a car, the occurrence of a traffic accident can be suppressed. In addition, if the incoming call or e-mail from the mobile phone is eliminated while the car is in operation, the malfunction of the smart key function due to the influence of the mobile phone can be suppressed.

  The present invention has been made in view of such problems, and an object of the present invention is to provide a mobile terminal device that can forcibly stop the operation of the mobile terminal device inside an automobile.

The present invention is used in the second system among the first system that realizes the operation of the automobile by wireless communication and the second system that performs wireless communication with the wireless base station, unlike the first system. in the mobile terminal device, a radio receiving unit that receives a radio signal, based on a signal received from the first system in the radio receiver, and a mobile control unit for controlling the communication of the apparatus according to the second system, the It is characterized by having .

Further, the present invention is characterized in that when the portable control unit receives a signal from the first system, the portable control unit stops communication by the second system of its own device .
Further, the present invention is characterized in that the portable control unit controls the power supply of the device itself to be turned off when a signal is received from the first system .
Further, the present invention is characterized in that, when the portable control unit receives a signal from the first system, the portable control unit controls the radio wave condition of the own device to be out of range.

  According to the present invention, by recognizing specific data such as a request command that is constantly transmitted from an automobile, it is possible to recognize that the mobile terminal device itself is in the smart key function area.

Further, according to the present invention, when a signal is received from the first system, it is possible to control its own mode by stopping communication of the own device by the second system .
In addition , according to the present invention, when the portable control unit receives a signal from the first system, the smart key system is prevented from malfunctioning by performing control so that the power of the own device is turned off. Can do.
Further, according to the present invention, when a signal is received from the first system, it is possible to prevent the smart key system from malfunctioning by controlling the device to be out of range.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a block diagram showing an embodiment of the present invention. The same components as those in FIG. 3 are denoted by the same reference numerals. The configuration of the automobile 1 is the same as that in FIG. Reference numeral 30 denotes a mobile phone as a mobile terminal device. In the cellular phone 30, 31 is a battery for operating the circuit, 32 is a wireless reception unit that receives specific data (signal A (frequency X)) such as a request command from the LF antenna 12 of the automobile 1, and 33 is the wireless reception unit A wireless control unit 34 that is connected to the unit 32 and determines whether or not the received data is specific data such as a request code from the automobile 1. A mobile unit 34 is connected to the wireless control unit 33 and performs mode control of the mobile phone. It is a control unit. The operation of the system configured as described above will be described as follows.

  The outline of the present invention is to perform control (for example, on / off control) of a mobile terminal device (mobile phone) using a smart key signal A that is constantly transmitted from the automobile 1. When the mobile phone 30 approaches the automobile 1, the wireless reception unit 32 receives specific data such as a request code that is constantly transmitted from the LF antenna 12 of the automobile 1. The received data is notified from the wireless reception unit 32 to the wireless control unit 33.

  The wireless control unit 33 determines whether the received data is specific data from the vehicle such as a request code. If the data is specific data from the automobile 1, the mobile control unit 34 is instructed to control the mode of the mobile phone. Receiving this instruction, the mobile control unit 34 controls the mode of the mobile phone 30. Specifically, it is conceivable to turn off the power supply or to set it out of service area.

  While the mobile phone 30 is in a position where it can receive specific data from the automobile 1, the request code is always transmitted from the automobile 1, so that the mode of the mobile phone 30 is always controlled. As described above, according to the present invention, it is possible to recognize that the user is in the smart key function area by recognizing specific data such as a request command that is constantly transmitted from the automobile. In addition, when in the smart key function area, the mobile phone can control its own mode. In addition, when you are in the smart key function area, turn off your power or set it to be out of service area to stop the mobile phone operation and cause the smart key system to malfunction. Can be prevented.

  On the other hand, when the mobile phone 30 leaves the car 1 and cannot receive specific data from the car 1, the wireless control unit 33 instructs the mobile control unit 34 to release the mode control for the mobile phone. Then, the mobile control unit 34 releases the mode control of the mobile phone 30. As a result, it is possible to suppress the influence on the occurrence of an accident due to the operation of the mobile phone while driving and the influence on the smart key function when receiving a call or mail. Note that the mobile phone 30 only receives specific data from the automobile 1, has no transmission function from the mobile phone 30, and does not affect the RF receiver 13 of the automobile 1.

  FIG. 2 is a flowchart showing an example of the operation of the present invention. The figure shows the operation of the mobile phone 30. The wireless receiving unit 31 is in a reception waiting mode that always waits for a request code from the automobile 1 (S1). Here, when the request code is received by the wireless reception unit 32, the reception data is notified to the wireless control unit 33 (S2). The wireless control unit 33 recognizes whether the received data is specific data such as a request code (S3).

  If the data is specific data, the wireless control unit 33 issues a mode control instruction to the portable control unit 34 (S4). The mobile control unit 34 controls the mode of the mobile phone 30 and performs settings such as power off or out of service area (S5). In this way, even if a mobile phone is brought into the automobile 1, the mode of the mobile phone can be turned off and the smart key system can be prevented from malfunctioning.

  Assume that the built-in timer has timed out without receiving a request code in step S1 (S6). This indicates that the mobile phone 30 is outside the smart key area. As a result, the wireless control unit 33 instructs the portable control unit 34 to cancel the mode control (S7). Receiving the instruction, the portable control unit 34 releases the mode control and enters the normal mode (S8).

  In the above-described embodiment, the case where a mobile phone is used as the mobile terminal device is taken as an example. However, the present invention is not limited to this, and information communication with other devices is performed using radio. The present invention can be equally applied to a mobile terminal device such as a mobile device.

  As described above, according to the present invention, it is possible to provide a mobile terminal device capable of forcibly stopping the operation of the mobile terminal device inside the automobile.

It is a block diagram which shows one embodiment of this invention. It is a flowchart which shows an example of operation | movement of this invention. It is a schematic diagram of a smart key system.

Explanation of symbols

1 Car 11 Keyless Unit 12 LF Antenna 13 RF Receiver 30 Mobile Phone 31 Battery 32 Radio Receiver 33 Radio Controller 34 Mobile Controller

Claims (4)

A mobile terminal device used in the second system of the first system that realizes the operation of the vehicle by wireless communication and the second system that performs wireless communication with a wireless base station, unlike the first system In
A wireless reception unit that receives a wireless signal, and a portable control unit that controls communication of the device by the second system based on a signal received from the first system in the wireless reception unit ;
A mobile terminal device . The portable terminal device according to claim 1 , wherein the portable control unit stops communication by the second system of the own device when receiving a signal from the first system . The portable control unit, when receiving a signal from the first system, the mobile terminal apparatus according to claim 1 or 2, wherein the power supply of the device itself and controls so as to turn off. The portable terminal device according to claim 1 or 2, wherein the portable control unit controls the radio wave condition of the device to be out of range when a signal is received from the first system.

Images