JP2002315050A - Mobile communication equipment and disturbance ratio wave control system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide mobile communications equipment for controlling originating of a disturbing radio wave in advance, so as not to originate the disturbing waves at a certain distance possible to bring about an misoperations in medical equipment or electronic equipment. SOLUTION: The mobile communications equipment comprises a receiving means for receiving a radio signal of a predetermined frequency range based on a scanning signal, a detection signal 22 of a specific frequency signal of the radio signal received by the receiving means, an analog to digital conversion signal 23 for converting the analog signal of the detected specific frequency into pattern data of a digital value, a comparing means 11 for comparing the pattern data with a reference pattern, and a control means 1 for controlling to reduce the originating field strength level to be output from the mobile communications equipment or turn off the power source, when the comparison result falls within a predetermined near range. Further, the communications equipment receives an alarm signal from an alarm signal originator carried by a person wearing heart pacemaker, and likewise controls the transmission of the disturbance waves or the power source.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile body provided with a device for detecting radio waves transmitted from a medical device such as a cardiac pacemaker and controlling a radio wave which causes an obstacle to the medical device such as a cardiac pacemaker. The present invention relates to a communication device and an identification signal transmission system.

[0002]

2. Description of the Related Art Due to technological innovation in communication technology and information technology,
2. Description of the Related Art The development and popularization of information and communication equipment in recent years is rapidly changing all industries. In the course of this change, the spread of mobile communication terminals, especially mobile phones, etc., remains unknown. The mobile communication terminal can be used anywhere as long as radio waves can reach, as represented by a mobile phone. Mobile communication devices emit strong radio waves because they need to transmit and receive accurate data. Since mobile communication devices can be used anywhere, medical devices and electronic devices used in the human body, vehicles such as trains, hospitals, research laboratories, etc. are subject to radio waves transmitted from mobile communication devices. It is likely to be used unknowingly where there is a risk of being affected and causing a malfunction.

In the worst case, for example, the life of a person wearing a heart pacemaker is affected by, for example, heart disease. Furthermore, there is a risk that electronic devices used in various other devices may also malfunction. Therefore, there was an idea to receive the radio wave transmitted by the cardiac pacemaker and control the transmission of the obstruction radio wave.However, since the signal transmitted by the cardiac pacemaker is taken in according to the same standard as the general commercial power supply radio wave, it can be accurately determined. There were no mobile communications devices.

[0004] Therefore, the only countermeasures to be taken on the side affected by this dangerous radio wave are to strengthen the shield of the equipment being used or to restrict the use of the portable terminal. However, there is a limit to the use of shields, and the current situation is to rely on the morals of individual users for use restrictions.

[0005]

As described above, in order to prevent a radio wave signal transmitted from a mobile communication device that may cause a malfunction of a medical device or an electronic device due to a radio wave, use of the device is not yet possible. In this situation, it is necessary to rely on the awareness of each mobile communication device user.

Accordingly, the present invention is intended to prevent a person carrying a mobile communication device which may cause malfunction from transmitting an obstacle radio wave at a distance where a medical device or an electronic device may cause malfunction. Provided a mobile communication device that controls obstacle radio waves beforehand, and a warning signal transmission device that carries a person using a medical device, detects the presence of the disturbance radio waves, and transmits a warning radio wave, and receives a warning radio wave It is an object of the present invention to provide a radio wave control system in which a mobile communication device controls transmission of a radio wave.

[0007]

SUMMARY OF THE INVENTION The present invention relates to a mobile communication device capable of transmitting and receiving, comprising: receiving means for receiving a radio signal in a predetermined frequency range based on a scanning signal; Detecting means for detecting a specific frequency signal of the signal, analog-to-digital converting means for converting the detected analog signal of the specific frequency into pattern data of digital value, and comparing the pattern data with a predetermined reference pattern Comparing means, as a result of the comparison,
When the pattern data and the reference pattern are within a predetermined approximate range, a control unit that performs control to reduce a transmission electric field intensity level output from the mobile communication device or to cut off a power supply. I have.

[0008] The predetermined frequency range is a radio signal within a range in which the mobile communication device can transmit and receive.

Further, the specific frequency signal is a radio signal emitted from a medical device or the like. This specific radio wave is a sine wave unlike a continuous general commercial radio wave.

The analog-to-digital conversion means is measurement data for converting the analog signal of the specific frequency output from the medical device as digital value pattern data. The pattern data is obtained by converting the analog data detected at a predetermined time as a pattern data of a digital value.

The conversion into the pattern data is performed when a value obtained by measuring an analog pulse detected within a predetermined predetermined time within a range not exceeding a predetermined upper limit value level and a predetermined threshold level continues for a predetermined time. 1 ". further,
If there is no value in the measurement range level, it is set to “0”.

The comparing means compares the pattern data with a reference pattern value of the same or similar frequency among a plurality of reference pattern values set and held in advance, and sends a determination signal. The pattern data is a sine wave, unlike continuous general commercial radio waves. The sine wave is compared with the reference pattern data.

[0013] The control means stops the transmission from the transmission means of the mobile communication device based on the determination signal of the determined result, or sets the level of the radio signal transmitted from the transmission means to a predetermined level. The following means are provided.

Further, according to the present invention, it is possible to provide a fault radio wave control system including a warning signal transmitting device having transmitting means for transmitting a pattern signal of a specific frequency at a level lower than a reference value, and a mobile communication device.

The mobile communication device includes a transmitting / receiving unit for transmitting / receiving a radio signal in a predetermined frequency range, a receiving unit for receiving a radio signal of a specific pattern, and a radio signal of the specific pattern. A transmission control unit for reducing the level of the radio signal transmitted from the transmission / reception unit to a predetermined level or less or prohibiting transmission from the transmission / reception unit when the transmission / reception unit transmits the signal.

On the other hand, the warning signal transmitting device includes a receiving means for receiving a signal in a predetermined frequency range transmitted by the mobile communication device, a detecting means for detecting a signal level received by the receiving means, and a detecting means. A comparison unit that compares the signal level thus obtained with a predetermined signal level; and a transmission unit that transmits a pattern signal of a specific frequency based on the comparison result.

The predetermined frequency signal is a frequency of 800 MHz band and 1.9 GHz or 2.0 GHz band transmitted from a portable telephone.

The pattern signal of the specific frequency is a sequence of numerical values repeated at a predetermined time.

The mobile terminal device receiving the pattern signal is configured to automatically control the transmission of radio waves from the device.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. In the embodiment of the present invention, the mobile communication device is a mobile phone, and the medical device is a cardiac pacemaker.

The first embodiment of the present invention detects a specific radio signal from a radio signal received by a mobile phone,
When the signal pattern of the detected radio signal is recognized as a pre-stored radio signal of a cardiac pacemaker, the mobile phone is configured to control the transmission of radio waves from the mobile phone. First, in order to recognize that the received signal is a cardiac pacemaker signal, the received signal is compared with a reference pattern signal. The comparison is based on the premise that the signal transmitted by the cardiac pacemaker is a sine wave, unlike a continuous general commercial power wave, and performs a matching comparison between the sine wave pattern data and the reference pattern data. If the result of the matching indicates a predetermined approximate range, processing for reducing the electric field intensity level is performed.

More specifically, when the user of the portable telephone is near the wearer of the cardiac pacemaker, a sine wave signal generated when the cardiac pacemaker using the portable telephone gives electrical stimulation to the myocardium is transmitted to the portable telephone. The receiving unit receives. A sine wave generated by a cardiac pacemaker is detected from the received radio signal, and an analog radio signal received within a predetermined time is converted into a digital value and stored as a pattern. The pattern is matched and compared with a preset signal pattern of the cardiac pacemaker. If the pattern is within a predetermined approximate range, the transmission of the mobile phone is cut off, or the electric field intensity level of the transmitted radio signal does not affect the cardiac pacemaker. It is formed so as to be lowered to the range.

FIG. 1 is a diagram showing a configuration of a mobile phone 10 according to an embodiment of the present invention. In FIG. 1, the operation unit 9
Is a device for inputting a telephone number or various data. An input signal input from the operation unit 9 is output to the system control unit 1 via the operation control unit 5. The name control unit 6 is controlled by the system control unit 1 to perform a call operation to a destination and a call operation for a call signal input from the line processing unit 3 via the system control unit 1. The voice control unit 4 converts voice data from the line processing unit 3 into voice and outputs the voice data to the receiver 7 according to the state controlled by the system control unit 1, and converts voice input from the transmitter 8 into voice data. Output to the line processing unit 3. The radio control unit 2 converts the line signal from the line processing unit 3 into a radio signal according to the state controlled by the system control unit 1, transmits the radio signal via the antenna 15, and converts the radio signal received from the antenna 15 into the line processing unit. 3 to output a line signal. The parts described above have the same structure as the basic parts of the telephone.

In the present invention, a tuner 20 is further connected to the antenna 15. The tuner 20 selects a radio wave of a specific frequency from radio waves received by the antenna 15, and selects, for example, a radio signal of a frequency signal band emitted by a cardiac pacemaker based on a scanning signal. That is, a reception frequency control unit 24 is connected to the tuner 20. Based on the scanning signal given from the reception frequency control unit 24, the radio wave input from the antenna 16 is converted into a reception signal of a cardiac pacemaker band frequency. Output.

A band filter 21 is connected to the output side of the tuner 20. The bandpass filter 21 passes only a signal in a specific frequency range among the received signals supplied from the tuner 20, and a detection unit 22 for level detection is connected to the output side. Detection unit 2
Numeral 2 detects a specific frequency signal that has passed through the bandpass filter 21 and generates a detection signal proportional to the amplitude thereof. The output side of the detector 22 is connected to the input side of the A / D converter 23.

The A / D converter 23 samples the input detection signal at a constant period, converts the level value of the sampled specific frequency signal into a digital value, and outputs it as measurement data. The output side of the A / D converter 23 is connected to the input side of the comparison / determination unit 11.

The comparison / determination unit 11 compares and compares the measurement data supplied from the A / D converter 23 with a reference value pattern stored in a memory. When it is determined to be within, a transmission control signal is issued.

The output side of the comparison / determination unit 11 is connected to the system control unit 1. The system control unit controls the transmission set by the transmitted transmission control signal.

Here, the heart plays a role of circulating blood through the body by repeatedly contracting and expanding the myocardium. This regular contraction is caused by cardiomyocyte excitation.
A certain resting potential exists inside and outside the cell with the cell membrane as a boundary. Excitation changes the ion permeability of the cell membrane to generate an action potential. This phenomenon is called depolarization. In cardiomyocytes, the membrane potential increases from 20 to 40 mV, and returns to the original resting potential through the process of repolarization. The change in the membrane potential due to the excitation causes a potential gradient, and a local current flows from the excitable site to the excitable site, thereby changing the properties of the adjacent cell membrane. Such excitations that occur periodically in the sinus node of the heart first spread into the atria, causing them to contract. Next, it enters the atrioventricular node, is divided into the right and left legs of Tahara via the bundle of His, enters the Purkinje fibers distributed on the inner surface of the left and right ventricle walls via the interventricular septum, spreads throughout the ventricle, and contracts the ventricle.

The normal contractile activity of the heart is performed by transmitting the electrical excitation generated at the sinus node to the ventricular muscle by the stimulation conduction system. However, if the conduction of the excitement is inhibited or if the generation of the excitement is abnormal, cardiac arrest or extreme heartbeat may occur. In such a state, the cardiac output is reduced, resulting in cerebral ischemia and seizures such as dizziness and fainting. This is called Adams-Stokes syndrome,
A cardiac pacemaker is used for these treatments. A cardiac pacemaker maintains contractile activity of the heart by artificially stimulating the heart muscle. There are two types of cardiac pacemakers: the main body is held outside the body and the main body is implanted inside the body. Most permanent implantable cardiac pacemakers are programmable pacemakers, and the operating conditions can be freely changed even after implantation in the body. In addition, a lithium battery is used as a power supply, and has a life of about 10 years. In the cardiac pacemaker, a stimulation site, a spontaneous heartbeat detection site, and a response to the detected spontaneous heartbeat are classified by a three-letter code according to the format.

The first letter of the code represents the stimulation site, V is the ventricle, A is the atrium, D is both V and A, and S is one of V or A. The second letter of the code represents the detection site,
V represents ventricle, A represents atria, D represents both V and A, S represents either V or A, and O represents no detection function. Third of code
The letters indicate the type of reaction, I for suppressed, T for synchronous, D for both I and T, and O for no response.

There are various functional types of cardiac pacemakers currently used.

For example, VVI pacing is the most widespread ventricular suppressed demand pacemaker. VVI
In pacing, when the heart moves by itself, its electrical stimulation is sensed by electrodes attached to the ventricles, and the cardiac pacemaker does not cause electrical stimulation. Next, if the next electrical stimulation of the heart is not sensed within a certain period of time, electrical stimulation from a cardiac pacemaker is applied to the heart via the electrodes. VVI
Pacing is pacing that helps the heart beat by this repetition. Only one electrode is used, which is the most frequently used cardiac pacemaker.

Other pacing includes AAI pacing, VDD pacing, DVI pacing, DDI pacing, and DDD pacing. Among them, DDD pacing is a method of interlocking atrial and ventricular beats even when atrial beats are small, and interlocking atrial and ventricular beats with VDD when atrial beats are higher than the pacing rate. . In this method, the movements of the atria and the ventricles are used together as much as possible. DDD is currently the most advanced physiological cardiac pacemaker.

As described above, the cardiac pacemaker generates pulses for electrically stimulating the myocardium at predetermined intervals at a predetermined intensity. It is common to define the basal frequency at which stimulation pulses are delivered in the absence of a natural heart rhythm, ie, the basal rate. The basal frequency in the heart per minute is measured in time intervals in seconds and is commonly expressed as ms. As described above, the radio wave when the cardiac pacemaker generates the pulse for artificially stimulating the myocardium can be detected as a pattern having a certain time interval.

A cardiac pacemaker includes a main body including a control unit,
Consists of lead wires and electrodes. The operation is to output a signal detected by the rate response sensor to an indicating / rate converter, which outputs a signal on a route, and when this signal is applied to a pacing circuit, a stimulation pulse is generated from a pulse generator by a pulse generator. Given to. Cardiac pacemakers typically define a basal frequency (ie, basal rate) at which stimulation pulses are delivered to a heart where there is no natural heart rhythm. The basal frequency in the heart per minute expresses the corresponding time interval as seconds, typically as ms. The connection time for normal AV conduction is normally 120 ms to 220 ms.

FIG. 2 is a diagram showing an example of an electrical stimulation pulse. The horizontal axis indicates time, and AA indicates the time interval between the generation of the electrical stimulation pulse of the cardiac pacemaker. The vertical axis indicates the pulse level and the stimulation level of the electrical stimulation pulse 50.

Generally, the number of beats of the human heart in a normal state is 60 to 80 times per minute. In a widely used buoy-buy-eye (VVI) pacing cardiac pacemaker, the electrical stimulation is applied for a certain period of time.
For example, when the heart pacemaker is set to 70 times per minute, 0.85 is obtained by dividing 1 minute (60 seconds) into 70 equal parts.
Control is performed so that the heart beats within 7 seconds (857 ms). Therefore, if the electrical stimulus indicating that the heart beats from the heart within the interval is not sensed by the electrodes of the cardiac pacemaker, the cardiac pacemaker applies the electrical stimulation to the heart to beat the heart. I have.

Here, taking as an example a mobile phone that communicates radio waves with the nearest base station at a predetermined electric field strength, if the mobile phone is brought within 22 cm of the cardiac pacemaker, the cardiac pacemaker will be affected by the radio waves transmitted by the mobile radio waves. A malfunction may occur.

For this reason, a portable telephone is used by a person who has a cardiac pacemaker implanted in the body (a person wearing a cardiac pacemaker).
In the case of approaching within cm, it is necessary to stop the radio wave transmitted from the mobile phone or to separate the radio wave from the wearer of the cardiac pacemaker by a predetermined distance.

Therefore, according to the present invention, the portable telephone receives the frequency band signal of the electrical stimulation pulse from the cardiac pacemaker for a predetermined time (for example, 5 seconds) from a distance farther than the distance causing the cardiac pacemaker to malfunction. When the signal is determined to be a cardiac pacemaker, transmission of the mobile phone is controlled.

The pulse of the electrical stimulation of the cardiac pacemaker described above is set to provide 70 electrical stimulations per minute in the above example. And 5.8 in 5 seconds
One electrical stimulation pulse is provided. Therefore, since the specific frequency signal generated by the pulse generated by the cardiac pacemaker is output at a constant interval, it can be recognized as a frequency signal having a specific constant pattern.

By receiving a certain pattern in a specific frequency band generated by the cardiac pacemaker and comparing the received data pattern with the reference cardiac pacemaker pattern data, it is determined that the pattern is the same or within the determination range.
It is recognized that there is a wearer of a cardiac pacemaker near the mobile phone holder.

Here, the digitization of the electrical stimulation pattern of the cardiac pacemaker in the present invention will be described.

FIG. 3 is an enlarged view of the portion indicated by Y of the pulse of the electrical stimulation generated by the cardiac pacemaker. The antenna 15 of the mobile phone receives the radio wave, detects the frequency of the stimulation pulse of the cardiac pacemaker with a bandpass filter, and converts signal data for a predetermined time (for example, 4 seconds) from an analog signal to a digital value. In this example, there are a region where the electrical stimulation pulse is generated five times in four seconds and a blank region until the next pulse is generated. On the assumption that the signal transmitted by the cardiac pacemaker is a sine wave, unlike a continuous general commercial radio wave, the sine wave waveform pattern data and the reference pattern data are matched and compared.

In the example of FIG. 3, the horizontal axis represents time, and the vertical axis represents pulse levels. Reference numeral 60 indicates a level threshold.

In this example, the electrical stimulation pulses 50 of the cardiac pacemaker are generated at intervals of 800 ms, and the connection time of the pulse conduction is set to 160 ms. The pulse measurement unit is 160 ms. As a result, it will have five measurements during 800 ms. And there is a 640ms gap.

Then, the unit of measurement, 160 ms, is changed to 10 ms.
Set to check in units.

In the measurement, when the waveform of the electrical stimulation pulse 50 continues between the threshold value 60 and the upper limit level value 61 for, for example, 100 ms or more, it is determined that the normal electrical stimulation pulse 50 exists. When it is determined that the pulse is the electrical stimulation pulse 50, a digital value "1" is given.

If it is determined that there is no electrical stimulation pulse 50 of 100 ms or more during the measurement, a digital value "0" is given.
Subsequently, the next 800 ms is checked in the same manner. This check is performed for a predetermined period of time, in this example, data determination for 4 seconds and conversion to numerical data is performed.

According to the measurement result, the converted data value is
"10000, 10000, 10000, 10000,
A pattern data value of "10000" can be obtained.
Then, this data is compared with a digital value pattern of a radio signal transmitted from the mobile phone which is set and held in advance. If it is determined that they are the same or within the determination range as a result of the comparison, there is a wearer of the cardiac pacemaker in the vicinity, so that a control signal for radio wave transmission is sent to the system control unit 1.

In the determination of the pulse signal in the present invention, even if there is a short-time level change due to noise or the like in the signal, if the signal is within a predetermined range, it is regarded as noise or the like and ignored to avoid erroneous determination. I have to. For example, in the electrical stimulation pulse 50, a pulse whose threshold is 60 or less is 10 ms.
If the level immediately returns to the level equal to or higher than the threshold value 60 even after 50 ms, the pulse is ignored.

Similarly, the number of pulses whose upper level value is 61 or more is 1
Even if it is between 0 ms and 50 ms, the upper limit level value is 6 immediately
If it returns to a level below 1, this is also ignored. Further, when the level equal to or less than the threshold value 60 continues for a predetermined time or more, for example, 60 ms or more, it is determined that there is no pulse and is set to “0”. Similarly to the above example, if the pulse exceeds the upper limit level 61 of 60 ms or more, the upper limit level 61 is ignored and determined to be “0”.

Even if noise or the like is included in the waveform of the electrical stimulation pulse 50 by performing the above processing, it can be determined by removing it as noise. As described above, since the electrical stimulation pulse 50 emitted from the cardiac pacemaker of the wearer of the cardiac pacemaker can be selected and detected, accurate determination can be performed.

As described above, when the pattern data obtained by converting the pattern of the electrical stimulation pulse into a digital value is compared with a preset reference pattern data value and it is determined that the value is within a predetermined approximate range. , The received radio signal is a signal transmitted from a cardiac pacemaker.

When it is determined that the value is within the predetermined approximation range, a transmission control signal is sent to the system control unit 1, and the system control unit 1 controls the wireless control unit 2 to control the transmission (for example, to control the transmission electric field intensity level). Lower).
Further, it is possible to instruct the operation control unit so that the operation control unit turns off the power.

In the above example, the electrical stimulation pulse 5
Although 0 is generated at intervals of 800 ms, the number of electrical stimulations can be changed depending on the state of the wearer's heart depending on the cardiac pacemaker. Therefore, in order to check the pattern of the electrical stimulus pulse 50 generated in the range of 50 to 80 electrical stimulus pulses per minute, a plurality of types of pattern values of the criterion value are created, and It is stored in a storage unit so that it can correspond to a cardiac pacemaker having each pattern.

Further, the measurement time reference may be changed according to the detected frequency. Each unit of the measurement time may be automatically changed and measured according to the frequency.

FIG. 4 is a diagram showing the flow of the control operation. The operation will be described with reference to the drawings. Radio waves having a plurality of frequency components are transmitted to the tuner 20 via the antenna 15.
Is input to In the tuner 20, a specific frequency component of the input radio wave is selected by the scanning signal SCN provided from the reception frequency control unit 24, converted into a reception signal of a frequency transmitted by the cardiac pacemaker, and output to the band-pass filter BPF21. (S1).

In the band-pass filter BPF21, only a frequency component in a specific range centered on the frequency transmitted by the cardiac pacemaker is passed, and is output to the detector 22 as a cardiac pacemaker signal. The sent signal is the detector 2
2, and a detection signal proportional to the amplitude is generated (S2). The detection signal is supplied to the A / D converter 23, converted into a digital value, and supplied as a data pattern to the comparison / determination unit 11 (S3).

The A / D converter 23 in the comparison / determination section 11
Is compared with the reference value pattern held in the memory, and when it is determined that the data pattern is within a predetermined approximate range of the reference value pattern, a transmission control signal is output (S4).

This transmission control signal is sent to the system control unit 1, and the system control unit 1 instructs the radio control unit 2 to lower the level of the transmission signal or instruct the power supply unit to turn off the power according to a preset condition. Output (S5).

The scanning signal supplied from the reception frequency control unit 24 to the tuner 20 is a signal which scans and receives a frequency band of a signal band transmitted by a cardiac pacemaker, for example. Therefore, these bands are searched at regular intervals, and it is determined whether or not a radio wave within a predetermined approximate range exists in the pattern of the reference value. If these bands are not within a predetermined approximation range of the reference value pattern determination value, no transmission control signal is output and no transmission control is performed (S6).

According to the present invention, when the heart pacemaker wearer is in the vicinity as described above, the transmission of the mobile phone is controlled without being conscious of the owner of the mobile phone. Malfunction of a cardiac pacemaker or the like can be prevented.

FIG. 5 is a block diagram showing an embodiment of the obstacle radio wave control system according to the second invention of the present invention. Elements common to those in FIG. 1 are denoted by common reference numerals.

The obstacle radio wave control system includes a warning signal transmitting device 100 carried by a person using a cardiac pacemaker to avoid a danger such as a malfunction of the heart pacemaker due to a strong electromagnetic wave. The mobile phone 60 is a mobile communication device. The warning signal transmitting device 100 has substantially the same configuration as the obstacle radio wave receiving unit of the mobile phone shown in FIG.

The tuner 20 is connected to the antenna 30. The tuner 20 selects a radio wave of a specific frequency from radio waves received by the antenna 30, and based on a scanning signal, for example, sets a signal band transmitted by a mobile phone to 80.
The signal is such that a frequency range such as the 0 MHZ band, the 1.9 GHZ band, or the 2.0 GHZ band is sequentially scanned and received.

A band filter 21 is connected to the output side of the tuner 20. The bandpass filter 21 allows only a signal in a specific frequency range among the received signals supplied from the tuner 20 to pass as a frequency signal of the mobile phone, and a detection unit 22 for level detection is connected to this output side. Have been.

The detector 22 detects the frequency signal that has passed through the bandpass filter 21 and generates a detection signal proportional to the amplitude of the frequency signal. The output side of the detector 22 is connected to the input side of the A / D converter 23.

The A / D converter 23 samples the input detection signal at a constant period, converts the sampled voltage value into a digital value, and outputs the digital value as measurement pattern data. The output side of the A / D converter 23 is connected to the input side of the comparison / determination unit 11.

The comparison / determination section 11 compares the measurement pattern data provided from the A / D converter 23 with a reference value stored in a memory. Is determined. When it is determined that the radio wave is within a predetermined approximate range from the reference value, a warning pattern signal is issued. The means for generating and determining this pattern data is the same as that described in the first aspect of the present invention, and thus will not be described.

The output side of the comparison / determination unit 11 is connected to the warning signal transmission unit 27. Upon receiving the warning signal, the warning signal transmitting unit transmits a weak specific signal warning signal (for example, an Fm wave signal) having a field strength level lower than the reference value of the specific radio frequency from the antenna 31 to a nearby mobile phone user. Send to. On the other hand, the transmitted warning signal is received by a nearby mobile phone.

Here, the configuration of the mobile phone 60 that receives a warning signal will be described. The operation unit 9 is a device for inputting a telephone number or various data. An input signal input from the operation unit 9 is output to the system control unit 1 via the operation control unit 5. The name control unit 6 is controlled by the system control unit 1 to perform a call operation to a destination and a call operation for a call signal input from the line processing unit 3 via the system control unit 1.

The voice control unit 4 converts voice data from the line processing unit 3 into voice according to the state controlled by the system control unit 1, outputs the voice to the receiver 7, and converts the voice input from the transmitter 8 into voice data. And outputs it to the line processing unit 3.
The radio control unit 2 converts the line signal from the line processing unit 3 into a radio signal according to the state controlled by the system control unit 1, transmits the radio signal via the antenna 15, and converts the radio signal received from the antenna 15 into the line processing unit. 3 to output a line signal.

Further, in receiving the warning radio wave, the warning signal of the specific pattern transmitted by the warning signal transmitting device 100 is received by the warning signal receiving unit 18 to which the antenna 17 is connected. The output side of the warning signal receiving unit 18 is connected to the system control unit 1.

The warning signal receiving unit 18 compares the warning signal of the specific pattern with the reference pattern signal stored in advance and determines that they are the same, and sends a control signal for controlling the fault radio wave to the system control unit 1.

The system control unit 1 receives the received control signal and controls the electric field strength level of the transmission of the obstructing radio wave to be low or stops the transmission of the obstructing radio wave. Further, a procedure such as turning off the power of the mobile phone is performed according to a predetermined procedure.

The method of detecting and measuring the radio signal of the warning signal transmitting apparatus 100 of the obstacle radio control system is the same as the above-described measuring method of the first invention.

In this embodiment, the antenna 17 for receiving a warning signal is connected to the antenna 1 for receiving a normal mobile phone reception signal.
5 and a common antenna 15
May be received.

The warning signal transmitted by the warning signal transmitting section is a signal having a numerical pattern having a predetermined length at predetermined time intervals. This warning signal is a low-level (for example, Fm wave) warning signal at a frequency that does not affect malfunction of the cardiac pacemaker because the person wearing the cardiac pacemaker emits the signal.

As described above, according to the present invention, a mobile communication device (for example, a portable telephone) receives a radio wave transmitted by a cardiac pacemaker, and receives a radio wave pattern of the received cardiac pacemaker and a preset reference pattern. Are compared and the transmission level of the mobile phone is lowered, the transmission is stopped, or the power is turned off. Further, the signal transmitted by the cardiac pacemaker is a sine wave unlike a continuous general commercial radio wave. On the premise of this, the existence of a cardiac pacemaker can be accurately known by matching and comparing the sine wave pattern data with the reference pattern data. Further, the mobile communication device (for example, a mobile phone) receives a warning signal transmitted from a warning signal transmitting device carried by the wearer of the cardiac pacemaker, and transmits or transmits a fault radio wave of the mobile communication device in the same manner as described above. It is a system that controls the power supply.

[0082]

Conventionally, detection of a signal transmitted from a medical device such as a cardiac pacemaker has been adopted in the same manner as a general commercial power frequency signal. The present invention provides accurate radio wave detection by selecting and receiving the frequency of a sine wave signal transmitted from a medical device such as a cardiac pacemaker from a received radio signal, and matching and comparing the received signal pattern with a preset reference pattern. Was made possible.

According to the present invention, a person carrying a mobile communication device that may cause malfunction of a medical device such as a cardiac pacemaker or an electronic device may be operated at a distance where the medical device or the electronic device may malfunction. Provision of mobile communication devices that prevent transmission of interference radio waves or reduce the electric field strength level beforehand so that they do not transmit interference radio waves, and detect the presence of interference radio waves carried by people using medical equipment A warning signal transmitting device for transmitting a warning radio wave, and a radio wave control system in which a mobile communication device that receives the warning radio controls transmission of the radio wave.

[Brief description of the drawings]

FIG. 1 shows a configuration example of a mobile communication device according to the present invention.

FIG. 2 shows an example of an electrical stimulation pulse detected by the mobile communication device according to the present invention.

FIG. 3 is an enlarged view of a portion indicated by Y of the electrical stimulation pulse shown in FIG. 2;

FIG. 4 is a diagram showing a flow of a control operation of the mobile communication device according to the present invention.

FIG. 5 shows a configuration example of a fault radio wave control system according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 System control part 2 Radio | wireless control part 10 Cellular phone 11 Comparison / determination part 15 Antenna 18 Warning signal receiving part 20 Tuner 21 Band filter 22 Detector 23 A / D converter 27 Warning signal transmitting part 50 Electrical stimulation pulse 60 Threshold 61 Upper limit Level value 100 Warning signal transmitter

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5K067 AA26 BB04 DD27 DD43 EE02 EE12 FF16 HH12 HH21 HH22

Claims (12)

[Claims] 1. A mobile communication device capable of transmitting and receiving, comprising: a receiving unit for receiving a radio signal in a predetermined frequency range based on a scanning signal; and detecting a specific frequency signal of the radio signal received by the receiving unit. Detection means, analog-to-digital conversion means for converting the detected analog signal of the specific frequency into pattern data of digital value, comparison means for comparing the pattern data with a predetermined reference pattern, and a result of the comparison And control means for performing control to reduce a transmission electric field intensity level output from the mobile communication device or to cut off power when the pattern data and the reference pattern are within a predetermined approximate range. A mobile communication device characterized by the above-mentioned. 2. The mobile communication device according to claim 1, wherein the radio signal in the predetermined frequency range is a signal in a frequency range that can be transmitted and received by the mobile communication device. 3. The mobile communication device according to claim 1, wherein the specific frequency signal is a radio signal emitted from a device such as a medical device. 4. The mobile communication device according to claim 1, wherein the analog-to-digital converter converts the analog signal of the specific frequency output from the medical device into digital value pattern data. 5. The mobile communication device according to claim 4, wherein the pattern data is obtained by converting the analog data detected in a predetermined time unit into digital value pattern data. 6. The conversion into the pattern data is performed by setting the analog data to “1” when a value recognized within a range not exceeding a predetermined upper limit level and a predetermined threshold level continues for a predetermined time. 6. The mobile communication device according to claim 5, wherein "0" is set in other cases. 7. The method according to claim 1, wherein the comparing unit compares the pattern data with a reference pattern value of an approximate frequency among a plurality of preset reference pattern values and transmits a determination signal. Item 2. The mobile communication device according to Item 1. 8. The transmitting means of the mobile communication device, based on a determination signal of the determined result, wherein the control means stops transmitting from the transmitting means, or a transmission electric field intensity level of a radio signal transmitted from the transmitting means. 2. The mobile communication device according to claim 1, further comprising means for reducing the transmission electric field intensity level to a predetermined level or less. 9. A warning signal transmitting device having transmitting means for transmitting a pattern signal of a specific frequency at a level lower than a reference value, and a mobile communication device, wherein the mobile communication device has a predetermined frequency range. Transmitting / receiving means for transmitting / receiving a wireless signal; receiving means for receiving the wireless signal of the specific pattern; and receiving the wireless signal of the specific pattern, the level of the wireless signal transmitted from the transmitting / receiving means. An interference radio wave control system having a transmission control means for reducing the electric field intensity level to a predetermined level or less or prohibiting transmission from the transmission / reception means. 10. The warning signal transmitting device, comprising: receiving means for receiving a signal in a predetermined frequency range transmitted by the mobile communication device; detecting means for detecting a signal level received by the receiving means; 10. A signal processing method comprising: comparing means for comparing a signal level detected by the means with a predetermined signal level; and transmitting means for transmitting a pattern signal of a specific frequency based on the comparison result. Obstacle radio control system as described. 11. The predetermined frequency signal is an 800 MHz band and 1.9 GHz or 2.0 GHz transmitted from a mobile phone.
11. The obstacle radio wave control system according to claim 10, wherein the frequency is a z-band frequency. 12. The fault radio wave control system according to claim 10, wherein the pattern signal of the specific frequency is a sequence of numerical values repeated in a predetermined time unit.