JP2011166263A - Portable terminal and alarm control method and program used for the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce the risk that a user utilizing a Bluetooth(R) function collides with an another person present around him/her. <P>SOLUTION: A Bluetooth(R) communication part 10 configuring the portable terminal 1 receives radio signals 101 based on a Bluetooth(R) system sent out from other portable terminals 2. A control part 30 monitors the reception strength of the radio signals 101, and when the reception strength tends to increase, makes an alarm part 20 generate an alarm indicating that another portable terminal 2 is approaching the present terminal 1. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a mobile terminal and a warning control method and program used therefor, and more particularly to a technique for warning the approach of another person using a Bluetooth function of a mobile phone or the like.

  In recent years, mobile phones having a Bluetooth function have become widespread. Here, the Bluetooth function is a function in which the mobile phone performs wireless communication with an external unit such as a headset in accordance with the Bluetooth method.

  A user who has such a mobile phone can use the Bluetooth function to make a call or listen to music in a hands-free state.

  As a reference technology, in Patent Document 1, prior to data exchange between two adjacent mobile terminals, one mobile terminal identifies the other mobile terminal by wirelessly exchanging identifiers in accordance with the Bluetooth method. How to do is described.

JP 2009-188989 A

  However, the user who uses the Bluetooth function is in a state in which consideration for the surroundings is diffused due to the concentration of consciousness on telephone calls, music, and the like, and there is a possibility of colliding with others.

  Therefore, an object of the present invention is to reduce the risk of collision between a user who uses the Bluetooth function and another person existing in the vicinity of the user.

  In order to achieve the above object, a mobile terminal according to one aspect of the present invention includes a communication unit that performs wireless communication in accordance with a Bluetooth method, a warning unit that generates a warning for a user who owns the terminal, When the reception strength of the wireless signal received from the other portable terminal received by the communication means is monitored and the reception strength tends to increase, the other portable terminal is approaching the own terminal. Control means for generating a warning to that effect.

  In addition, a warning control method according to an aspect of the present invention provides a warning control method used for a portable terminal that performs wireless communication in accordance with the Bluetooth method. This warning control method monitors the reception intensity of a radio signal from another portable terminal, and when the reception intensity tends to increase, the fact that the other portable terminal is approaching the portable terminal, This includes warning the user who owns the mobile terminal.

  Furthermore, the warning control program according to one aspect of the present invention increases the reception intensity of a process for monitoring the reception intensity of a radio signal from another portable terminal in a portable terminal that performs wireless communication in accordance with the Bluetooth method. When it exists in the tendency, the process which warns with respect to the user who has the said portable terminal that the said other portable terminal is approaching the said portable terminal is performed.

  ADVANTAGE OF THE INVENTION According to this invention, it is possible to reduce the danger that the user who utilizes a Bluetooth function and the other person who exists in the circumference | surroundings collide.

It is the block diagram which showed the schematic structural example of the portable terminal which concerns on Embodiment 1 of this invention. It is the block diagram which showed the specific structural example of the portable terminal which concerns on Embodiment 1 of this invention. It is the flowchart figure which showed the operation example of the portable terminal which concerns on Embodiment 1 of this invention. It is the block diagram which showed the structural example of the portable terminal which concerns on Embodiment 2 of this invention.

  Embodiments 1 and 2 of a mobile terminal according to the present invention will be described below with reference to FIGS. In the drawings, the same components are denoted by the same reference numerals, and redundant description is omitted as necessary for the sake of clarity.

[Embodiment 1]
As shown in FIG. 1, the mobile terminal 1 according to the present embodiment includes a Bluetooth communication unit 10, a warning unit 20, and a control unit 30.

  Of these, the Bluetooth communication unit 10 performs wireless communication generally in accordance with the Bluetooth method. Specifically, the Bluetooth communication unit 10 is a wireless signal 101 (hereinafter referred to as a Bluetooth wireless signal) that is transmitted when a user (hereinafter referred to as another user) possessing another mobile terminal 2 uses the Bluetooth function. Call).

  In addition, the warning unit 20 issues a warning to a user who owns the mobile terminal 1 (hereinafter, referred to as “user”) in accordance with an instruction from the control unit 30.

  Furthermore, the control unit 30 monitors the reception intensity of the Bluetooth radio signal 101, and when the reception intensity tends to increase, another portable terminal 2 is approaching the terminal 1 with respect to the warning unit 20. A warning to that effect (that is, a warning that another user using the Bluetooth function is approaching the user) is instructed.

  As a result, the user can recognize the presence of other users who may be distracted from the surroundings, and can pay attention to the other users. Accordingly, it is possible to avoid a collision between another user (a user who uses the Bluetooth function) and the own user (another person existing in the vicinity).

  Further, since the communication range by the Bluetooth method is as narrow as about 10 m, there is an advantage that the user needs to pay attention only when the user is close to other users to the extent that there is a risk of collision.

  Hereinafter, specific configuration examples and operation examples of the present embodiment will be described in detail with reference to FIGS. 2 and 3, taking the case where the mobile terminal 1 functions as a mobile phone as an example.

  First, as illustrated in FIG. 2, the mobile terminal 1 includes the Bluetooth communication unit 10 and the control unit 30 described above. The mobile terminal 1 includes a display 20a as an example of the warning unit 20 described above. Furthermore, the mobile terminal 1 includes a wireless communication unit 40, a timer unit 50, a memory 60, a key operation unit 70, and various peripheral circuits 80.

  Among these, the Bluetooth communication unit 10 demodulates the radio signal received via the antenna 11 and outputs the demodulated signal to the control unit 30. Also, the Bluetooth communication unit 10 modulates various signals output from the control unit 30 to convert them into radio signals, and transmits the radio signals via the antenna 11. Note that the antenna 11 supports transmission / reception of a radio signal in a frequency band defined by the Bluetooth method.

  The display 20a displays image data such as a map and a photographed image, telephone number data, text data, and the like stored in the memory 60 in accordance with an instruction (display command) from the control unit 30.

  The radio communication unit 40 performs radio communication with the base station in accordance with various mobile communication methods. Specifically, the radio communication unit 40 demodulates a radio signal received via the antenna 41 and outputs the demodulated signal to the control unit 30. In addition, the wireless communication unit 40 modulates various signals output from the control unit 30 to convert them into wireless signals, and transmits the wireless signals via the antenna 41. The antenna 41 corresponds to transmission / reception of a radio signal in a frequency band defined by the mobile communication system. The antenna 41 may be either a built-in type or a telescopic type.

  The timer unit 50 has a general timer function.

  In addition to the image data, telephone number data, text data, and the like, the memory 60 stores a control program executed by the control unit 30 and measurement data related to the reception intensity of the Bluetooth wireless signal 101.

  The key operation unit 70 includes function keys such as a determination key and a symbol, and outputs a signal corresponding to the key operation from the user to the control unit 30.

  The control unit 30 executes a control program stored in the memory 60 in response to an input signal from the key operation unit 70, and thus the Bluetooth communication unit 10, the display 20 a, the wireless communication unit 40, the time measuring unit 50, and the memory 60. And the peripheral circuit 80 is controlled.

  In operation, the Bluetooth communication unit 10 receives the Bluetooth wireless signal 101 transmitted from the other portable terminal 2 shown in FIG. As shown in FIG. 3, the control unit 30 periodically measures the reception strength 102 of the Bluetooth radio signal 101 (step S1). Specifically, every time the reception strength 102 is measured, the control unit 30 stores the time measured by the time measuring unit 50 and the measured reception strength 102 in association with each other in the memory 60.

  Further, every time the reception strength 102 is measured, the control unit 30 traces the reception strength stored in the memory 60 in time series, and determines whether or not the reception strength 102 tends to increase (step). S2).

  As a result, when it is determined that the reception strength 102 does not tend to increase, the control unit 30 returns to step S <b> 1 and continues to measure the reception strength 102.

  On the other hand, when it is determined that the reception strength 102 tends to increase, the control unit 30 instructs the display 20a to display a warning that another mobile terminal 2 is approaching the terminal 1 itself. . In response to this, the display 20a displays a warning using text data, for example (step S3).

  As a result, even when the own user is performing e-mail creation, browser operation, etc. (that is, when the consciousness is concentrated on the display 20a and the consideration for the surroundings is in a distracting state) The existence of other users coming can be recognized with certainty. Although illustration is omitted, a warning for the user may be generated using sound, light, or the like, and in this case, the same effect can be obtained.

[Embodiment 2]
As shown in FIG. 4, in the mobile terminal 1a according to the present embodiment, the Bluetooth communication unit 10 transmits radio signals via n directional antennas 12_1 to 12_n instead of the antenna 11 shown in FIG. It differs from the above-described first embodiment in that transmission / reception is performed. Here, the directional antennas 12_1 to 12_n have different directivities.

  In operation, when the control unit 30 determines that any one of the reception strengths of the Bluetooth radio signals received via the directional antennas 12_1 to 12_n tends to increase, Judge that warning display is necessary.

  At this time, the control part 30 detects the relative position of the other portable terminal 2 with respect to the own terminal 1a based on the reception intensity which exhibits the maximum value among the reception intensity corresponding to each of the directional antennas 12_1 to 12_n. Specifically, the control unit 30 estimates the direction in which the other mobile terminal 2 approaches from the directivity of the antenna corresponding to the reception intensity that exhibits the maximum value. Moreover, the control part 30 estimates the distance between the other portable terminal 2 and the own terminal 1a from the said receiving strength.

  And the control part 30 displays the detected relative position as a warning on the display 20a.

  Thereby, in addition to being able to recognize the existence of the other user who is approaching more reliably, the own user can grasp the degree of danger of the collision with the other user.

  Note that the present invention is not limited to the above-described embodiments, and it is apparent that various modifications can be made by those skilled in the art based on the description of the scope of the claims. For example, each process of the portable terminal shown in the above embodiment can be provided as a program for causing a computer to execute the processes. In this case, it is preferable to store the program in a storage medium such as a memory so that the processor in the computer can execute the program. Alternatively, the program may be provided as a plug-in to firmware built in an existing mobile terminal.

DESCRIPTION OF SYMBOLS 1, 1a, 2 Portable terminal 10 Bluetooth communication part 11 Antenna 12_1-12_n Directional antenna 20 Warning part 20a Display 30 Control part 40 Wireless communication part 41 Antenna 50 Time measuring part 60 Memory 70 Key operation part 80 Key operation part 101 Bluetooth wireless signal 102 Receive strength

Claims (7)

A communication means for performing wireless communication in accordance with the Bluetooth method;
A warning means for generating a warning for a user who owns the terminal;
When the reception strength of the wireless signal received from the other portable terminal received by the communication means is monitored and the reception strength tends to increase, the other portable terminal approaches the warning terminal to the own terminal. Control means for generating a warning that
Mobile terminal equipped with. In claim 1,
A portable terminal characterized in that the warning means is a display for displaying the warning. In claim 2,
The communication means performs the wireless communication via a plurality of antennas having different directivities,
The control means detects the relative position of the other portable terminal with respect to its own terminal based on the reception strength of radio signals from the plurality of antennas, and causes the warning means to display the relative position as the warning. A mobile terminal characterized by A warning control method used for a portable terminal that performs wireless communication in accordance with the Bluetooth method,
Monitor the reception strength of radio signals from other mobile devices,
When the reception strength tends to increase, a warning is given to the user who owns the mobile terminal that the other mobile terminal is approaching the mobile terminal.
Warning control method including that. In claim 4,
A warning control method, wherein the warning is performed by displaying on a display. In claim 5,
When the wireless communication is performed via a plurality of antennas having different directivities, the relative position of the other portable terminal with respect to the portable terminal is detected based on reception strength of wireless signals from the plurality of antennas. A warning control method, wherein the relative position is displayed as the warning. To mobile terminals that perform wireless communication in accordance with the Bluetooth method,
A process of monitoring the reception strength of radio signals from other mobile terminals;
When the reception strength tends to increase, a process of warning the user who owns the mobile terminal that the other mobile terminal is approaching the mobile terminal;
Warning control program to execute

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