JP2919397B2 - Mobile phone detector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile communication system, and more particularly, to a mobile communication system that detects radio waves that adversely affect medical equipment and the like, and warns not to use the terminal.

[0002]

2. Description of the Related Art In recent years, various data, voice, and image signals have been used as multimedia age, and with the rapid increase of portable devices used in mobile communication systems, it has been said that any type of communication can be used anytime, anywhere, with anyone. In addition to convenience, departments dealing with precision electronic devices such as medical institutions, airplanes, data processing rooms, telephone exchanges, and the like may be disturbed by radio waves emitted from the portable devices. Usually, electronic devices are EMI (Electro-Magnetic)
Interference) ability has a standard,
If the performance is not sufficient, the performance of the electronic device cannot be exhibited due to radio wave interference or noise contamination by a portable device requiring high power. In particular, in an environment such as the medical device described above, it is required to prohibit the use of such a portable device or reduce the transmission power to maintain the interdependence between the portable device and the electronic device. I have.

Here, as the prior art, contrary to the above,
Japanese Patent Application Laid-Open No. 7-336758 discloses a communication system that detects and warns interference radio waves from an illegal station or the like affecting a mobile communication system such as a mobile phone and a mobile phone. This publication discloses, in a mobile communication system including a base station and an exchange, a jamming wave detecting means for detecting jamming radio waves in the communication system, a switching means for switching a radio communication channel during a call to another channel, Signal transmission means for transmitting a warning signal to a wireless channel that has detected a radio wave. In addition, prior to the start of operation of the communication system or the base station, if an interfering radio wave from an illegal station or the like is received, the communication channel is moved to another channel and a warning signal is transmitted to the radio channel on which the interfering radio wave is detected. According to the company, it is possible to alert the source of the interference while at the same time avoiding the influence of the interference.

[0004]

However, today, the mobile communication system itself uses its own radio wave to malfunction medical equipment for maintaining the health of the human body or detecting the health state of the human body. The possibility remains. This is a big problem especially for medical devices that are essential for human health.

Accordingly, the present invention is aimed at preventing the use of a mobile phone or the like in a place where medical equipment is located, such as a hospital,
It is intended to provide a device which warns when a radio wave other than a usable device is detected.

[0006]

According to the present invention, there is provided a receiving section for detecting a radio wave, and a control signal of the detected radio wave determines whether or not the radio wave is from a device other than a usable device such as a portable telephone or a PHS. Has a check unit for checking Also, in the case of a terminal that generates a radio wave other than a usable device by the check unit, a mobile phone detection device that controls the control unit to send an alarm to the announcement unit is provided.

Specifically, in a mobile phone detection device,
An antenna for detecting jamming radio waves, a receiving unit for receiving jamming radio waves from the antenna, a check unit for detecting jamming radio waves received by the receiving unit, and a jamming radio wave if the jamming radio waves are other than the usable devices; And a control unit for controlling the message sending unit.

In the portable telephone detection device, the message sending unit sends a message to the device that generates the jamming radio wave, and turns off the power of the device that generates the jamming radio wave. Further, in the mobile phone detection device, the reception unit scans a reception frequency band to detect the jamming radio wave under the control of the control unit.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing an embodiment of the mobile phone detection device of the present invention. In FIG. 1, reference numeral 1 denotes an antenna, which has a performance matched to a frequency band for detecting radio waves. For example, in the case of a digital car telephone which outputs a maximum of 3 W from a device that emits jamming radio waves, 8 is used.
In the case of a simple type mobile phone that outputs 00 MHz / 1500 MHz band and a maximum of 10 mW, aim at the 1.9 GHz band. Reference numeral 2 denotes a receiving unit that performs a process of capturing a signal from a radio wave received from the antenna 1. The receiving unit 2 may be a super heterodyne type configuration or a direct detection type, and in the case where the disturbed device is a pacemaker that emits an impulse stimulus to the heart, it is only necessary to detect the presence of a disturbing radio wave in a specific frequency band. The direct detection method may be used. Further, in order to receive a wide frequency band, a tuning frequency of a tuning circuit in a high frequency stage can be scanned and demodulated. A check unit 3 checks a signal received from the receiving unit 2, and checks whether the radio signal is a radio signal other than usable devices such as a car phone and a simplified cellular phone.

Reference numeral 4 denotes a control unit, and when the check unit 3 determines that the signal is a radio signal other than a usable device,
The control section 4 including the CPU and its peripheral circuits is controlled to issue a warning to the announcement section 5. The announcement unit 5 includes a speaker 7 and a vibrator, etc., and issues an unusable alarm to a device that emits jamming radio waves, or senses that a jamming radio wave generating device has approached a person of the mobile phone detection device. Can be done. Reference numeral 6 denotes a message sending unit which sends a call and a message to a device which emits a jamming radio wave corresponding to the receiving unit 2.
The transmission frequency, transmission power, transmission modulation method, and the like are transmitted from the antenna 1 via a transmission / reception splitter or the like under the control of the control unit according to the device that emits the predicted jamming radio wave.

The mobile phone detection device may have the same configuration as a base station in a simplified mobile phone system, for example. In this case, a function of periodically sending a location registration request from the simplified mobile phone is used. When the mobile phone detection device detects the location registration request, it can recognize that the simplified mobile phone is approaching. Although the portable type is not particularly described in detail, it is sufficient that the size is compatible with non-jamming equipment, and there is no particular limitation.

Next, FIG. 2 is a flowchart for explaining the operation of the mobile phone detection device. First, it is determined whether or not a jammed radio wave causing the malfunctioning device to malfunction is received (S1). If no jamming signal is received, the standby state is continued. If the jamming radio wave is received, it is determined whether or not the frequency band of the jamming radio wave is in the range of 800 to 1900 MHz (S2). If the frequency band is outside the frequency band, the process returns to step S1. If the frequency band is outside the frequency band, a location registration rejection signal for the location registration request is transmitted from the simplified cellular phone (S3). For example, a warning such as "Do not use at this facility" is displayed on the mobile phone (S4), and further additional information message is displayed on the simplified mobile phone.
For example, an alert like "Don't use" is displayed (S5).

In the above flow chart, if the jamming device does not have the above function, an alternative function, for example, a message to turn off the jamming device is issued, or the power supply to only the transmitting section of the jamming device is turned off. May be transmitted.

[0014] The mobile phone detection device may be attached to a medical device that is easily affected by radio wave interference, or may be arranged at a predetermined position in a hospital. The device according to the present invention can also be applied to a case where a malfunction or an automatic malfunction is expected to occur in an airplane, an information equipment room, or the like due to jamming radio waves.

Further, in the above-described embodiment, various functions and configurations have been described. However, if an object that generates jamming radio waves is clear, a function corresponding to the object may be provided, and the present invention is not limited to the above description. Of course. Even in this case, data for operating a plurality of functions is stored in the memory,
By the operation of the control unit including the CPU, the functions of the antenna, the receiving unit, and the checking unit are sequentially changed for each of various objects, so that it is possible to detect the interfering device and generate a warning or an alarm. .

[0016]

As described above, the mobile phone detection device of the present invention is installed in a hospital or the like where a medical device that is adversely affected by a mobile phone or the like is installed. There is an effect that it is possible to prevent the use of the generated terminal.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a mobile phone detection device of the present invention.

FIG. 2 is a flowchart showing a process of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Antenna 2 Receiving part 3 Check part 4 Control part 5 Announcement part

Claims (2)

(57) [Claims] An antenna for detecting jamming waves, a receiving unit for receiving jamming waves from the antenna, a check unit for detecting jamming waves received by the receiving unit, and a device other than a device that can use jamming waves. A device that issues an alarm to the device that generates the jamming radio and generates the jamming
A mobile phone detection device, comprising: a message sending unit for turning off the power of the device; and a control unit for controlling the message sending unit. 2. The mobile phone detection device according to claim 1, wherein the receiving unit scans a reception frequency band to detect the jamming radio wave under the control of the control unit. .