JPH1168681A - Radio wave detection suitability judging method and radio wave alarm - Google Patents

Abstract

PROBLEM TO BE SOLVED: To issue an alarm only when a portable communication means is used within an object block area by dividing a monitor area for detecting a radio wave transmitted from the portable communication means into a plurality of block areas and judging the suitability of a signal detected in the object block area, based on a signal detected in the other block area. SOLUTION: An arithmetic processing part 3 monitors a block area 150, for example, as the object block area among a plurality of block areas 110-190. When a radio wave detector 15 in the object block area 150 detects the radio wave, the arithmetic processing part 3 judges the detection in the object block area 150 and further judges whether radio wave detectors 11-14 and 16-19 detect radio waves or not and when they have detected radio waves, an alarm 25 in the object block area 150 is not operated but when these detectors have detected no radio wave, the alarm 25 is operated. Thus, the use of the portable communication means in the object block area 150 can be detected and stopped.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radio alarm device which detects a radio wave transmitted from a mobile communication device such as a portable telephone and issues an alarm, and more particularly to a radio alarm device which can judge whether the detected radio wave is appropriate or not.

[0002]

2. Description of the Related Art Conventionally, as this kind of radio alarm device, FIG.
There were the following. FIG. 9 shows an overall schematic configuration diagram of a conventional radio wave alarm device. Referring to FIG. 1, a conventional radio alarm device is a divided area 1 in which a plurality of monitored areas 100 are divided.
00d and 100e, radio wave detectors 11 and 12 and alarm 2
1 and 22 are respectively provided, and each of the divided areas 100d, 10d
When the mobile phone 6 is used within 0e, radio waves transmitted from the mobile phone 6 are detected by the radio wave detectors 11 and 12 and detection signals are output to alarm devices 21 and 22.
Reference numeral 22 denotes a configuration that issues an alarm to the user of the mobile phone 6 based on the detection signal.

[0003]

Since the conventional radio alarm device is configured as described above, the monitoring area 10
0 or a strong radio wave is transmitted from an illegal radio station or the like in an area other than the divided areas 100d and 100e, and the radio wave detector 11,
12 also receives the said divided areas 100d, 1
There is a problem that an alarm is issued from the alarm devices 21 and 22 in the same manner as when radio waves transmitted from the mobile phone 6 are received within 00e.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and has as its object to provide a radio warning device which issues a warning only when portable communication means is used in a target divided area.

[0005]

A radio alarm device according to the present invention divides an area for detecting a radio wave transmitted from portable communication means into a plurality of divided areas, and is detected in the plurality of divided areas. A radio wave transmitted from the portable communication means is detected in a section area near an arbitrary target division area in which radio wave suitability is determined, and transmitted from the portable communication means in the target section area based on the detected radio wave. This is to judge whether the detection signal obtained by detecting the radio wave is appropriate. As described above, in the present invention, the detection signal detected in the target section area in the plurality of section areas is determined as appropriate based on the detection signals detected in the other section areas. The use of the portable communication means in the divided area can be detected, and the adverse effect of the portable communication means on medical equipment, precision equipment, and the like can be prevented.

The radio wave alarm device according to the present invention is provided, if necessary, in a plurality of divided areas for detecting radio waves transmitted from the portable communication means, and the radio wave detection means for detecting the radio waves; Each detection signal from each radio wave detection means arranged in the section area of the is input, and the suitability of the detection signal detected in any target section area to be determined,
Comprising arithmetic processing means for making a determination based on a detection signal detected by a radio wave detection means in another sectioned area, and alarm means for outputting an alarm to an operator of the portable communication means based on the result of the determination It is. As described above, in the present invention, the radio wave transmitted from the portable communication means is detected by the radio wave detection means in the divided areas divided into a plurality of areas, and the appropriateness of the detection signal detected in the target divided area among the divided areas is determined. The arithmetic processing means makes a determination based on the detection signals detected in the other divided areas, and the warning means outputs a warning based on the determination result. Use can be detected, and adverse effects on the medical equipment, precision equipment, and the like due to the portable communication means can be prevented.

In the radio wave alarm device according to the present invention, if necessary, the arithmetic processing means delays the rising waveform of the detection signal detected in the target segmented area by a predetermined time, and outputs the detection signal detected in the other segmented area. This is to determine whether or not the detection signal is appropriate by delaying the falling waveform by a predetermined time. As described above, in the present invention, the detection processing signal is delayed by a predetermined time when the detection signal rises or falls, and the appropriateness of the detection signal detected in the target divided area is determined by the arithmetic processing means. It is possible to prevent a determination error due to time, and it is possible to determine more appropriateness of the detection signal.

In the radio alarm device according to the present invention, if necessary, the arithmetic processing means compares the signal intensity of the detection signal detected in the target division area with the signal intensity of the detection signal detected in another division area. Then, the appropriateness of the detection signal is determined. As described above, in the present invention, the arithmetic processing means determines the suitability of the detection signal detected in the target division area based on the detection intensity of the detection signal, so that the detection signal detected in a plurality of locations of the target division area and the division area Can be determined more reliably.

According to the radio alarm device of the present invention, the detection frequency and / or the detection intensity of the detection signal detected by the radio wave detection means in an arbitrary divided area at a predetermined period or at predetermined intervals as necessary. Is stored in a storage means, and the detection data stored in the storage means is compared with a detection signal detected by a radio wave detection means to determine whether the detection signal is appropriate. As described above, in the present invention, the detection data relating to the detection frequency and the detection intensity of the detection signal in an arbitrary divided area detected by the radio wave detection means is stored in the storage means, and the detection data is detected by the radio wave detection means based on the detection data. Since the appropriateness of the detected signal to be detected is determined, the determination can be made in consideration of the specific mode detected in the divided area, and the appropriateness of the detected signal can be determined more accurately.

The radio wave alarm device according to the present invention is provided with an electromagnetic wave shield means for the radio wave detection means for restricting the direction of entry of radio waves from the portable communication means, if necessary.
Thus, in the present invention, by providing the electromagnetic wave shielding means for restricting the direction of entry of the electric wave from the portable communication means in the electric wave detection means, the division area to be detected by the electric wave detection means can be clearly divided, An accurate detection signal can be detected.

In the radio wave alarm device according to the present invention, if necessary, the alarm means detects the contents of the alarm by voice synthesis. As described above, in the present invention, the use of the portable communication means in the target divided area can be reliably prevented by notifying the contents of the warning by the warning means by voice synthesis.

[0012] The radio wave alarm device according to the present invention may, if necessary, provide a notifying means for notifying a person entering the target division area that the target division area is an area in which the use of portable communication means is prohibited. It is provided. As described above, according to the present invention, the notification means notifies the person entering the target division area that the use of the portable communication means is prohibited. Use of communication means can be prevented beforehand.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION

(First Embodiment of the Present Invention) Hereinafter, a radio alarm apparatus according to a first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a block diagram of a radio alarm device according to the present embodiment, FIG. 2 is a layout diagram of the embodiment device shown in FIG. 1, and FIG. 3 is an operation flowchart of the embodiment device shown in FIG. .

In each of the above figures, the radio wave alarm device according to the present embodiment is disposed in each of a plurality of divided areas 110 to 190 for detecting radio waves transmitted from the mobile phone 6, and detects the transmitted radio waves. Radio detectors 11 to 19
And detection signals S1 from the radio wave detectors 11, 19 disposed in the plurality of divided areas 110, 190, respectively.
1, ..., S19 are input, and the suitability of the detection signal S15 detected in the specific target division area 150 to be determined is determined by the division areas 110 adjacent to the target division area 150,
, 140, 160, to 190 radio wave detectors 11,
, 14, 16, ..., 19, the detection signal S11,
, S14, S16,..., S19, and an alarm processor 21 to output an alarm to the operator of the mobile phone 6 based on the determination result. It is.

Next, the operation of the radio alarm device according to this embodiment based on the above configuration will be described. As a premise, the divided area 15 of the plurality of divided areas 110,.
0 is a divided area in which the suitability of the detection signal S15 is determined,
Activate the device and select the area 1 for the entire monitoring area 100
10, to 190 are set to the monitoring state.

In the monitoring state, first, a case where a radio wave is transmitted from the mobile phone 61 in an area other than the monitoring area 100 will be described. In this case, the radio wave detectors 12 and 15 both detect and output the respective detection signals S12 and S15 (step 1). The detection signals S12 and S15 are input to the arithmetic processing unit 3, and the arithmetic processing unit 3 determines whether the input detection signals S12 and S15 are the detection signals detected in the target division area 150 (Step 2). .

The arithmetic processing unit 3 determines that the detection signal S15 is a signal detected in the target division area 150, and further determines the division area 110 adjacent to the target division area 150,
It is determined whether or not a detection signal is detected from １４０, 140, 160, １９０, 190 (step 3). The arithmetic processing unit 3 determines that the input detection signal S12 is a signal detected in the adjacent section area 110,..., 140, 160,.
5 is controlled so as not to operate (step 4).

If it is determined in step 2 that the input detection signal is not a signal detected in the target area 150, the process returns to step 1 and each of the radio wave detectors 11,. , Etc., from the mobile communication device. Further, the detection signal input in the step 3 is the same as that of the adjacent divided area 1.
If it is determined that the signal is not a signal detected in 10, 140, 160, 190,
Of the mobile phone 6 in the target sectioned area 150 is output (step 5).

When the mobile phone 6 is used in the target division area 150, the detection signal S15 is output only from the radio wave detector 15 in the target division area 150 in the above operation, and the other division areas 110,. , 140, 16
Radio wave detectors 11,-, 14, 1 at 0,-, 190
From 6, 19, each detection signal S11, ..., S14, S16,
, S19 is not output and no radio wave is detected.
5 is operated to stop using the mobile phone 6.

In the operation example, the monitoring area 1
Although the case where the mobile phone 61 is used outside 00 is described, when the mobile phone 62 is used in the divided area 110, the alarm 25 is controlled so as not to output an alarm in the same manner as described above.

(Second Embodiment of the Present Invention) A radio alarm device according to a second embodiment of the present invention will be described with reference to FIGS. 4 is a block diagram of a radio wave alarm device according to the present embodiment, FIG. 5 is a detailed circuit diagram of a radio wave detector and an arithmetic processing unit in the embodiment device of FIG. 4, and FIG. 6 is FIG. 7 is a detailed circuit configuration diagram of the delay circuit in the arithmetic processing unit, FIG. 7 is a logic timing chart of the arithmetic processing unit shown in FIG. 5, and FIG. 8 is an operation timing chart of each delay circuit shown in FIG.

In each of the drawings, the radio wave alarm device according to the present embodiment includes a radio wave detector 11 for detecting radio waves in a specific monitoring area 100a and an alarm for use of the mobile phone 6 in the monitoring area 100a. An alarm 21 that emits an electric signal, and radio wave detectors 12 and 13 that are disposed near the monitoring area 100a and detect radio waves transmitted from a mobile communication device such as the mobile phone 6. Detection signals S11, S output from the detectors 11, 12, 13
12, the operation of the alarm unit 21 is controlled by the arithmetic processing unit 3 based on S13.

The radio wave detector 11 (or 12, 13)
Are a detection circuit 111 for detecting a received radio wave, an edge detection circuit 112 for detecting a rising edge and a falling edge of a waveform of the detection signal, and an amplification circuit for amplifying a detection signal in which an edge portion of the signal is detected. 113, a full-wave rectifier circuit 114 for full-wave rectifying the amplified signal and outputting it as a DC voltage, and comparing the voltage level of the detection signal of the DC voltage with a preset voltage level to monitor area 100a ( Alternatively, a level comparison circuit 115 for obtaining the radio field intensity in the divided areas 100b and 100c), a pulse generation circuit 116 for generating a detection pulse when the radio field intensity is determined to be equal to or more than a predetermined value, and detection based on the detection pulse An output circuit 117 that outputs a signal S11 (or S12, S13) to the arithmetic processing unit 3 is provided.

The arithmetic processing unit 3 includes the radio wave detector 11
A first delay circuit 31 for delaying the time of the rising waveform of the detection signal S11 from the
Second and third delay circuits 32 and 33 for delaying the times of the falling waveforms of the detection signals S12 and S13 from the circuits 2 and 13 by a predetermined time, and the second and third delay circuits 32 and 33
Inverters 34 and 35 for inverting the detection signals S12 and S13 delayed by the above, and the detection signals S11 and S output from the first delay circuit 31 and the inverters 34 and 35, respectively.
12, and an AND circuit 36 for obtaining the logical product condition of S13.

Next, the operation of this embodiment based on the above configuration will be described. First, when the mobile phone 6 is used in the monitoring area 100a, only the radio wave detector 11 detects the radio wave transmitted from the mobile phone 6, and detects the detection signal S11.
Is output. The detection of radio waves by the radio wave detector 11
The level comparison circuit 115 outputs the detection signal S11 when the signal exceeds a predetermined threshold, and does not output the detection signal S11 even when receiving a fine signal that is smaller than the threshold, for example, from outside the monitoring area 100a.

Outside the monitoring area 100a,
When a strong radio wave is transmitted from an in-vehicle illegal radio station or the like, the radio wave detector 11 outputs a detection signal S11 because the radio wave exceeds the threshold value of the level comparison circuit 115. The strong radio wave is detected by both or one of the radio wave detectors 12 and 13 and outputs detection signals S12 and S13.

The output detection signals S11, S12, S13
Are input to the arithmetic processing unit 3, and the detection signal S11 is output by delaying the rising waveform time by the first delay circuit 31, and the detection signals S12 and S13 are output to the second and third delay circuits 32 , 33, the time of the falling waveform is delayed and output. The delay time in the first delay circuit 31 is determined by the time constant of the resistor R31 and the capacitor C31. The delay time in the second and third delay circuits 32 and 33 is determined by the resistance of the resistor R322 and the capacitor C32. It is determined by the time constant.

As described above, the rising time of the detection signal S11 is delayed as shown in FIG.
By delaying the fall time of S12 and S13 as shown in FIG. 8B, the delay due to the transmission / computation time in the radio wave detectors 11, 12, 13 and the computation processing unit 3 is compensated. Further, when the detection signals S11, S12, and S13 are intermittently transmitted, one of them is delayed until the next timing, so that the arithmetic processing unit 3 can more reliably determine the presence or absence of the alarm output.

As shown in FIG. 7 (A), when only the detection signal S11 is input and the detection signals S12 and S13 are not input, an alarm signal is output to the alarm device 21. Then, the alarm 21 outputs an announcement to stop using the mobile phone 6 in the monitoring area 100a. When the detection signal S12 is output together with the detection signal S11 as shown in FIG. 7B, an alarm signal is not output from the arithmetic processing unit 3 to the alarm device 21 so that the alarm device 21 is not activated. Control. FIG.
Also in the case of (C), the control is performed so that the alarm device 21 does not perform the alarm operation as in FIG.

(Other Embodiments of the Present Invention) In each of the above embodiments, the arithmetic processing unit 3 drives and controls the alarms 21,..., 29 according to the presence or absence of a detection signal from which a radio wave is detected. The arithmetic processing unit 3 sets the target division area (for example, 1
The signal strength of the detection signal (for example, S15) detected in 50) is compared with the signal strength of the detection signal (for example, S12) detected in another divided area (for example, 120) to determine whether the detection signal (for example, S15) is appropriate. The driving of the alarm device (for example, 25) can be controlled by judging. Since the signal intensities of the detection signals thus detected are compared, when a radio wave is detected by any one of the plurality of radio wave detectors 11 to 19, any one of the divided areas (for example,
It can be reliably determined whether or not it has been detected in the target division area 150).

In the radio alarm apparatus according to another embodiment, the radio detectors 11, 19 detect a waveform within an arbitrary divided area at predetermined intervals or at predetermined intervals. The detection data relating to the detection frequency or the detection intensity of the detected signal to be detected is stored in the storage means, and the detection data stored in the storage means and the radio wave detectors 11 to 19 are stored.
It is also possible to adopt a configuration in which the detection signals S11,..., S19 are compared with the detection signals S11,. As described above, the detection signal is detected in advance in an arbitrary division area to be monitored, and the appropriateness of each of the detection signals S11 to S19 is determined from the detected detection frequency and detection intensity. As in the case where a strong radio wave is transmitted due to the presence of a radio relay station or the like in the vicinity of the area, the judgment can be made in consideration of circumstances specific to the divided area.

Further, by sequentially accumulating the detected data to create a data file, the AI for estimating the suitability of the detection signal based on the sequentially accumulated data file.
The arithmetic processing unit 3 may have an (Artificial Intelligence) function (learning function). Since the appropriateness of the detection signal is determined by the arithmetic processing unit 3 of the AI function based on the data file stored in this manner, a more reliable determination can be made as the use time of the apparatus continues.

Further, the radio wave detectors 11 to 19 are provided with an electromagnetic shielding material at a predetermined position such as a surface in a direction in which radio waves are not desired to be detected, so as to regulate a direction of radio waves from the mobile phone 6 or the like. , The radio wave detectors 11, ..., 1
In step 9, the range in which a plurality of signals are simultaneously detected and the detection signal is output can be limited, and the appropriateness of the detection signal can be more reliably determined.

Further, as the alarm contents of the alarm means, it is possible to use a blinking indicator light, a character display on a display, and a pre-recorded voice synthesizing notifying means. Further, when traffic of a person is detected at an entrance or the like, the same warning means as described above for notifying in advance that use of a mobile phone is prohibited can be used.

[0035]

As described above, according to the present invention, the appropriateness of a detection signal detected in a target divided area in a plurality of divided areas is determined based on detection signals detected in other divided areas. Therefore, it is possible to detect the use of the portable communication means in the target divided area, and it is possible to prevent an adverse effect of the portable communication means on medical equipment, precision equipment, and the like. Further, in the present invention, the radio wave transmitted from the portable communication means in the plurality of divided areas is detected by the radio wave detecting means, and the appropriateness of the detection signal detected in the target divided area among the divided areas is determined. The arithmetic processing means makes a decision on the basis of the detection signal detected in the divided area, and the warning means outputs a warning based on the result of the decision. Can be detected, and the portable communication means can be prevented from adversely affecting medical equipment, precision equipment, and the like. Further, in the present invention, the detection processing signal is delayed by a predetermined time during the rising or falling waveform of the detection signal, and the appropriateness of the detection signal detected in the target divided area is determined by the arithmetic processing means. Can be prevented, and there is an effect that it is possible to more accurately determine the suitability of the detection signal. Further, in the present invention, since the arithmetic processing means determines the suitability of the detection signal detected in the target division area based on the detection strength of the detection signal, the detection signal detected in a plurality of locations of the target division area and the division area is determined. Compliance can be more reliably determined. Further, in the present invention, detection data relating to the detection frequency / detection intensity of a detection signal in an arbitrary area detected by the radio wave detection means is stored in the storage means, and detected by the radio wave detection means based on the detection data. Since the appropriateness of the detected signal is determined, the determination can be made in consideration of the specific mode detected in the divided area, and the appropriateness of the detected signal can be determined more accurately. Further, in the present invention, by providing the electromagnetic wave shield means for restricting the direction of entry of the electric wave from the portable communication means in the electric wave detection means, the division area to be detected by the electric wave detection means can be clearly distinguished, so that more accurate This has the effect that it is possible to detect various detection signals.
Further, in the present invention, the use of the portable communication means in the target divided area can be surely prevented by notifying the contents of the warning by the warning means by voice synthesis. Further, in the present invention, the notification means notifies the person entering the target division area that the use of the portable communication means is prohibited. This has the effect that the use of the means can be prevented beforehand.

[Brief description of the drawings]

FIG. 1 is a block circuit configuration diagram of a radio wave alarm device according to a first embodiment of the present invention.

FIG. 2 is a diagram showing an arrangement of the apparatus according to the embodiment shown in FIG. 1;

FIG. 3 is an operation flowchart of the embodiment apparatus shown in FIG. 1;

FIG. 4 is a block circuit configuration diagram of a radio wave alarm device according to a second embodiment of the present invention.

FIG. 5 is a detailed circuit configuration diagram of a radio wave detector and an arithmetic processing unit in the embodiment device shown in FIG. 4;

6 is a detailed circuit configuration diagram of a delay circuit in the arithmetic processing unit shown in FIG.

FIG. 7 is a logic timing chart of the arithmetic processing unit shown in FIG. 5;

FIG. 8 is an operation timing chart of each delay circuit shown in FIG. 6;

FIG. 9 is an overall schematic configuration diagram of a conventional radio alarm device.

[Explanation of symbols]

3 Arithmetic processing unit 6 Mobile phone 11,-, 19 Radio wave detector 21,-, 29 Alarm device 31, 32, 33 Delay circuit 34, 35 Inverter 36 AND circuit 100, 100a Monitoring area 110,-, 190, 100c 100d, 100e
Division area 111 Detection circuit 112 Edge detection circuit 113 Amplification circuit 114 Full-wave rectification circuit 115 Level comparison circuit 116 Pulse generation circuit 117 Output circuit C31, C32 Capacitor S11, ..., S19 Detection signal R31, R321, R322 Resistance

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code FI H04B 7/26 H04B 7/26 K

Claims (8)

[Claims] 1. An area for detecting a radio wave transmitted from a portable communication means is divided into a plurality of divided areas, and the vicinity of an arbitrary target divided area in which it is determined whether radio waves detected in the plurality of divided areas are appropriate or not. Detecting a radio wave transmitted from the portable communication means in the divided area, and determining whether or not a detection signal detected from the radio wave transmitted from the portable communication means in the target divided area is appropriate based on the detected radio wave. Characteristic radio wave detection suitability determination method. 2. A radio wave detecting means provided in each of a plurality of divided areas for detecting radio waves transmitted from portable communication means, and detecting the radio waves, and a radio wave detecting means provided in each of the plurality of divided areas. Calculation processing in which each detection signal from the means is input and the suitability of the detection signal detected in any target divisional area to be judged is determined based on the detection signal detected by the radio wave detection means in another divisional area. And a warning unit that outputs a warning to an operator of the portable communication unit based on the determination result. 3. The radio wave alarm device according to claim 2, wherein the arithmetic processing means delays a rising time of a detection signal detected in the target division area by a predetermined time and detects a detection signal detected in another division area. A radio warning apparatus characterized in that it is determined whether or not a detection signal is appropriate by delaying a predetermined time during a falling waveform of a signal. 4. The radio wave warning device according to claim 2, wherein the arithmetic processing unit has a signal strength of a detection signal detected in the target division area and a signal of a detection signal detected in another division area. An electric wave alarm device, which judges the suitability of the detection signal by comparing the intensity with the intensity. 5. The radio wave alarm device according to claim 2, wherein a detection frequency of a detection signal detected by the radio wave detection means in an arbitrary divided area at a predetermined predetermined period or at predetermined intervals and / or Alternatively, the detection data related to the detection intensity is stored in a storage unit, and the detection data stored in the storage unit is compared with a detection signal detected by a radio wave detection unit to determine whether the detection signal is appropriate. Radio alarm. 6. The radio wave alarm device according to claim 2, wherein said radio wave detection means includes an electromagnetic wave shield means for restricting a direction of radio waves entering from a portable communication means. apparatus. 7. The radio wave alarm device according to claim 2, wherein the alarm means notifies the contents of the alarm by a voice synthesizing device. 8. The radio wave alarm device according to claim 2, wherein a person entering the target division area is notified that the target division area is an area where use of portable communication means is prohibited. An electric wave alarm device comprising an informing means for performing an alarm.