JP2003308578A - Malfunction prevention system - Google Patents

Malfunction prevention system

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Publication number
JP2003308578A
JP2003308578A JP2002116197A JP2002116197A JP2003308578A JP 2003308578 A JP2003308578 A JP 2003308578A JP 2002116197 A JP2002116197 A JP 2002116197A JP 2002116197 A JP2002116197 A JP 2002116197A JP 2003308578 A JP2003308578 A JP 2003308578A
Authority
JP
Japan
Prior art keywords
electric field
field strength
signal
reference signal
judgment
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
JP2002116197A
Other languages
Japanese (ja)
Inventor
Takahiro Atomichi
高広 後路
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Canon Inc
Original Assignee
Canon Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Canon Inc filed Critical Canon Inc
Priority to JP2002116197A priority Critical patent/JP2003308578A/en
Publication of JP2003308578A publication Critical patent/JP2003308578A/en
Withdrawn legal-status Critical Current

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Abstract

<P>PROBLEM TO BE SOLVED: To prevent the malfunction of another device by unnecessary radiation issued by a device. <P>SOLUTION: The device, or the source of noise, intentionally issues a radio wave as a reference signal different from noise, the device in the side of receiving the noise receives the reference signal and measures its level, and when the level is high, it is determined that the device is close thereto and has the possibility of the malfunction and issues an alarm to a user. <P>COPYRIGHT: (C)2004,JPO

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【発明の属する技術分野】本発明は、誤動作防止システ
ムに関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a malfunction prevention system.

【0002】[0002]

【従来の技術】従来、医療機器等はノイズの無い場所で
使用されることを前提に作られており、妨害電波に対し
て非常に誤動作しやすいものもある。そこで前記前提が
守られるよう使用者に徹底していた。
2. Description of the Related Art Conventionally, medical equipment and the like have been made on the premise that they are used in a place where there is no noise, and some of them are apt to malfunction due to jamming radio waves. Therefore, the user was thoroughly instructed to keep the above premise.

【0003】一方、事務機、携帯電話等では妨害電波に
対する動作を保証する規格と、妨害電波を出す量を決め
られた領域にする規格がある。その場合でも妨害電波を
出す側と受ける側との距離が、取られていることが前提
である。
On the other hand, in office machines, mobile phones, and the like, there are standards for guaranteeing operation against jamming waves and standards for limiting the amount of jamming waves to a predetermined area. Even in that case, it is premised that the distance between the sender and the receiver of the interfering radio waves is set to a certain value.

【0004】[0004]

【発明が解決しようとする課題】しかしながら、医療機
器等の誤動作は現実の問題としてある。この一つの原因
として、妨害電波を出す側と受ける側との距離が取られ
ていない。使用者はそれと気づかず機器を設置してい
た。こうした、期待されない近接した機器の設置を防止
することにより、誤動作の一因を減らすことが課題であ
る。
However, the malfunction of the medical device or the like is a real problem. One of the reasons for this is that the distance between the side that emits the interfering radio wave and the side that receives it is not set. The user installed the device without noticing it. The problem is to reduce the cause of malfunction by preventing the unexpected installation of adjacent devices.

【0005】本発明は上述の問題点に鑑みて成されたも
のであって、医療機器の誤動作の危険性がある場合、未
然に誤動作を防ぐことができる誤動作防止システムを提
供することを目的としている。
The present invention has been made in view of the above-mentioned problems, and an object thereof is to provide a malfunction prevention system capable of preventing malfunction in advance when there is a risk of malfunction of medical equipment. There is.

【0006】[0006]

【課題を解決するための手段および作用】上記課題を解
決するために、本発明は以下(1)及び(2)の構成を
備える。
In order to solve the above-mentioned problems, the present invention has the following constitutions (1) and (2).

【0007】(1)所定の周波数成分で所定レベルの電
界信号を発生する少なくとも一つの基準信号発生手段
と、前記手段から分離され、受信した電界信号の電界強
度を測定し測定結果に基いた電界強度に関する信号を出
力する電界強度測定手段と、電界強度測定手段の出力信
号を受けて警告をだすか否か判断をする判断手段と、前
記判断手段の判断を表示する表示手段、からなることを
特徴とする誤動作防止システム。
(1) At least one reference signal generating means for generating an electric field signal of a predetermined level with a predetermined frequency component, and an electric field based on the measurement result obtained by measuring the electric field intensity of the electric field signal received from the above-mentioned means. An electric field strength measuring means for outputting a signal relating to the strength; a judging means for judging whether to output an alarm by receiving the output signal of the electric field strength measuring means; and a displaying means for displaying the judgment of the judging means. A characteristic malfunction prevention system.

【0008】(2)コード情報を含む所定の周波数成分
で所定レベルの電界信号を発生する少なくとも一つの基
準信号発生手段と、前記手段から分離され、受信した電
界信号の電界強度を測定し測定結果に基いた電界強度に
関する信号を出力する電界強度測定手段と、受信した電
界信号からコード情報を出力するコード受信手段と、電
界強度測定手段の出力信号を受けて警告をだすか否か判
断をする判断手段と、前記判断手段の判断結果および前
記受信したコード情報もしくはそれに対応する内容を表
示する表示手段、からなることを特徴とする誤動作防止
システム。
(2) At least one reference signal generating means for generating an electric field signal of a predetermined level with a predetermined frequency component containing code information; and a measurement result obtained by measuring the electric field strength of the electric field signal received separately from the reference signal generating means. Field strength measuring means for outputting a signal related to the electric field strength, code receiving means for outputting code information from the received electric field signal, and output signal of the electric field strength measuring means for judging whether or not to issue a warning. A malfunction prevention system comprising: a judging means; and a displaying means for displaying the judgment result of the judging means and the received code information or contents corresponding thereto.

【0009】以上の構成により、基準信号発生手段と電
界強度測定手段とが接近した場合、表示手段が警告を出
すので、使用者は誤動作の危険性を事前に知ることがで
き、機器の接近した設置を防止できる。
With the above construction, when the reference signal generating means and the electric field strength measuring means approach each other, the display means gives a warning, so that the user can know the risk of malfunction in advance and the equipment approaches. Installation can be prevented.

【0010】[0010]

【発明の実施の形態】以下に本発明の実施の形態を、実
施例に基づいて図面を参照しながら説明する。
BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below based on examples with reference to the drawings.

【0011】[0011]

【実施例】(第1の実施例)図1は本発明の提案する誤
動作防止システムで、1は電界基準信号発生ユニット
で、アンテナ2から、所定のレベル、所定の周波数で電
波3を出す。この電波3にはコード情報が含まれてい
る。4はデジタル複写機であり図のように電界基準信号
発生ユニット1に近接して配置している。5はデジタル
複写機4からの不要輻射で期待されない電波であり、他
の機器の動作を妨害する要因となる。6は電界監視ユニ
ットで電波3と同一の周波数をもつ電波8をアンテナ7
より受信して強度を測定するためのもの。ここでは電波
8は電波3が伝播してきたものである。9は医療機器で
妨害電波を受けると誤動作する。医療機器9は電界監視
ユニット6に近接して配置されている。またLはデジタ
ル複写機と医療機器の距離である。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS (First Embodiment) FIG. 1 shows a malfunction prevention system proposed by the present invention, in which an electric field reference signal generating unit 1 emits a radio wave 3 from an antenna 2 at a predetermined level and a predetermined frequency. The radio wave 3 includes code information. Reference numeral 4 denotes a digital copying machine, which is arranged close to the electric field reference signal generating unit 1 as shown in the figure. Reference numeral 5 denotes a radio wave that is not expected due to unnecessary radiation from the digital copying machine 4, and becomes a factor that interferes with the operation of other devices. Reference numeral 6 denotes an electric field monitoring unit, which transmits an electric wave 8 having the same frequency as the electric wave 3 to an antenna 7
More for receiving and measuring strength. Here, the radio wave 8 is the radio wave 3 that has propagated. 9 is a medical device that malfunctions when it receives an interfering radio wave. The medical device 9 is arranged near the electric field monitoring unit 6. L is the distance between the digital copying machine and the medical device.

【0012】図2は電界基準信号発生ユニット1の内部
ブロック図で、11は制御部、12は電波を送信する送
信部、2は送信するアンテナ、3は送信される基準信
号、13は表示部で、14は放射電界強度スイッチであ
る。放射電界強度スイッチ14は使用者等が設定するも
ので、デジタル複写機4の不要輻射の強度に合わせて設
定する。具体的には0から1000のレベル値を設定可
能で、不要輻射のレベル値は単位がデシベルマイクロボ
ルトで30MHzから1GHzまでの周波数が装置中心
から10m離れたところで測定してその値以下であるこ
とを示す。ここでは不要輻射のレベルが“30“に設定
されている。つまり 不要輻射強度A=30デシベルマイクロボルト ここでAは後の式で同じ値を示すことを容易に理解する
ための記号である。
FIG. 2 is an internal block diagram of the electric field reference signal generating unit 1, in which 11 is a control unit, 12 is a transmitting unit for transmitting radio waves, 2 is an antenna for transmitting, 3 is a reference signal to be transmitted, and 13 is a display unit. Here, 14 is a radiation electric field intensity switch. The radiation electric field intensity switch 14 is set by a user or the like, and is set according to the intensity of unnecessary radiation of the digital copying machine 4. Specifically, a level value of 0 to 1000 can be set, and the level value of the unwanted radiation is decibel microvolts, and the frequency from 30 MHz to 1 GHz is measured at a distance of 10 m from the center of the device and is less than that value. Indicates. Here, the level of unnecessary radiation is set to "30". That is, the unnecessary radiation intensity A = 30 decibel microvolts Here, A is a symbol for easily understanding that the same value is shown in the following equation.

【0013】15は識別コード設定スイッチで使用者等
が設定するもので、4桁の任意の数字が入力可能であ
る。ここでは“3856”とする。このコードはこの電
界基準信号発生ユニット1ごとに異なる値をセットし
て、電界基準信号発生ユニット1が複数ある場合の識別
に役立てる。制御部11は放射電解強度スイッチ14、
識別コード設定スイッチ15の不要輻射レベルと識別コ
ードを読み取り、送信部12にその値を送り、送信部1
2は、基準信号3に不要輻射レベルと識別コードの情報
を持たせる。また電波は常に出ているわけでなく、10
秒に一度1秒間送信される。また周波数成分としては3
0MHz、1GHzの2種類が出力されている。また電
波3の強度がアンテナ2より10m離れたところで30
MHz、1GHz各々の周波数で10マイクロデシベル
ボルトになるよう送信部12およびアンテナ2は設計さ
れている。
An identification code setting switch 15 is set by a user or the like, and an arbitrary four-digit number can be input. Here, it is set to “3856”. This code sets a different value for each electric field reference signal generating unit 1 and is useful for identification when there are a plurality of electric field reference signal generating units 1. The control unit 11 includes a radiation field intensity switch 14,
The unnecessary radiation level and the identification code of the identification code setting switch 15 are read, and the values are sent to the transmitting unit 12, and the transmitting unit 1
2 makes the reference signal 3 carry the information of the unnecessary radiation level and the identification code. Also, radio waves are not always emitted, and 10
It is sent once per second for 1 second. Also, the frequency component is 3
Two types of 0 MHz and 1 GHz are output. Moreover, when the strength of the radio wave 3 is 10 m away from the antenna 2,
The transmitter 12 and the antenna 2 are designed so that the frequency is 10 microdB at each frequency of 1 MHz and 1 GHz.

【0014】つまり 基準信号出力強度B=10デシベルマイクロボルト 制御部11は表示部13に識別コードと不要輻射レベル
の表示を行なう。
That is, the reference signal output intensity B = 10 dB microvolt control section 11 displays the identification code and the unnecessary radiation level on the display section 13.

【0015】図3は電界監視ユニット6の内部ブロック
図で16は制御部、18はアンテナ7からの電波8の受
信部、17は電界強度測定部、電界強度測定部17は受
信部18で受信した基準信号の電界強度を30MHzと
1GHzについて測定し、制御部16に知らせる。19
は受信した信号から識別コードおよび不要輻射レベルを
検出するコード検出部で、この検出結果は制御部16に
送られる。21は耐電界強度設定スイッチである。耐電
界強度設定スイッチ21は使用者等が設定するもので、
医療機器9の妨害波10に対して誤動作しない許容量を
示し、0から1000のレベル値を設定可能で、レベル
値は単位がデシベルマイクロボルトで30MHzから1
GHzの周波数範囲で設定値の示す強度の妨害波10を
許容することを示す。医療機器9の耐電界強度が40デ
シベルマイクロボルトであり耐電界強度設定スイッチ2
1は40に設定される。
FIG. 3 is an internal block diagram of the electric field monitoring unit 6, where 16 is a control unit, 18 is a receiving unit for the radio wave 8 from the antenna 7, 17 is an electric field intensity measuring unit, and 17 is an electric field intensity measuring unit. The electric field strength of the reference signal is measured at 30 MHz and 1 GHz, and the control unit 16 is notified. 19
Is a code detection unit that detects the identification code and the unwanted radiation level from the received signal, and the detection result is sent to the control unit 16. Reference numeral 21 is a field strength setting switch. The electric field strength setting switch 21 is set by the user,
It shows an allowable amount that does not malfunction with respect to the interference wave 10 of the medical device 9, and a level value of 0 to 1000 can be set.
It shows that the interference wave 10 having the intensity indicated by the set value is allowed in the frequency range of GHz. The electric field strength of the medical device 9 is 40 decibel microvolts, and the electric field strength setting switch 2
1 is set to 40.

【0016】つまり 耐電界強度D=40デシベルマイクロボルト 制御部16は、検出された基準信号の電界強度が例えば
30MHzでXデシベルマイクロボルト、1GHzでY
デシベルマイクロボルト(X>Y)であった場合、より
大きいレベルのXデシベルマイクロボルトを検知電界強
度Cとして採用する。このとき妨害波強度F(デシベル
マイクロボルト)は、以下の式で求められる。
That is, the electric field strength D = 40 decibel microvolt control section 16 has X decibel microvolts when the electric field strength of the detected reference signal is, for example, 30 MHz, and Y when 1 GHz.
If it is in decibel microvolts (X> Y), a larger level of X decibel microvolts is adopted as the detected electric field strength C. At this time, the interference wave intensity F (decibel microvolt) is obtained by the following formula.

【0017】妨害波強度F=不要輻射強度A+(検知電
界強度C−基準信号出力強度B) 単位はデシベルマイクロボルト ( )内は装置間の距離Lが10メートル相当でゼロと
なり、より装置が近づいた時、正の値をとり、離れたと
き負の値をとる。この計算が制御部16で行なわれる。
Interfering wave intensity F = unnecessary radiation intensity A + (detection electric field intensity C-reference signal output intensity B) The unit is a decibel microvolt (), and the distance L between the devices is 10 meters, which is zero, and the devices are closer to each other. It takes a positive value when it goes away and a negative value when it goes away. This calculation is performed by the control unit 16.

【0018】妨害波10が誤動作を引き起こさないため
には以下の式を満たせば良い。
In order to prevent the interference wave 10 from causing a malfunction, the following formula may be satisfied.

【0019】妨害波強度F<耐電界強度D この判断が制御部16で行なわれて上記を満たさない場
合、誤動作の危険性があると判断する。また表示部20
に内蔵されたスピーカーから警告音を出す。また表示部
20には常に受信した基準信号8から検出した識別コー
ドと不要輻射レベル、電界強度測定部17で測定された
妨害波強度が表示されている。これにより警告音が出て
いる場合、誤動作を引き起こす原因となる装置が何であ
るかを、識別コードから使用者は知ることができる。
Interference wave intensity F <electric field strength D If this judgment is made by the control unit 16 and the above is not satisfied, it is judged that there is a risk of malfunction. In addition, the display unit 20
A warning sound is emitted from the speaker built into the. Further, the display section 20 constantly displays the identification code detected from the received reference signal 8, the unwanted radiation level, and the interfering wave intensity measured by the electric field intensity measuring section 17. With this, when the warning sound is emitted, the user can know from the identification code what device is causing the malfunction.

【0020】この実施例でデジタル複写機4に当たる部
分が、携帯電話、パソコン、ファクシミリなど他の機器
でも良い。また医療機器9にあたる部分がテレビ、ラジ
オ、ファクシミリ、測定機など他の機器でも良い。電界
基準信号発生ユニット1もしくは電界監視ユニット6は
それらの機器に着脱可能であっても内蔵されていてもど
ちらでも良い。また識別コードは製品の型式を含んでい
ても良い。
In this embodiment, the part corresponding to the digital copying machine 4 may be another device such as a mobile phone, a personal computer, or a facsimile. The part corresponding to the medical device 9 may be another device such as a television, a radio, a facsimile, and a measuring machine. The electric field reference signal generating unit 1 or the electric field monitoring unit 6 may be detachable or built in these devices. The identification code may also include the product type.

【0021】[0021]

【発明の効果】以上説明したように本発明によれば、医
療機器の誤動作の危険性がある場合、音により警告をす
るので、未然に誤動作を防ぐことができる。また多くの
機器がある場合でも識別コードが表示されるのでどの機
器かを特定できる。
As described above, according to the present invention, when there is a risk of malfunction of a medical device, a warning is given by sound, so that malfunction can be prevented in advance. Further, even when there are many devices, the identification code is displayed, so that which device can be specified.

【図面の簡単な説明】[Brief description of drawings]

【図1】 誤動作防止システムのブロック図FIG. 1 is a block diagram of a malfunction prevention system.

【図2】 電界基準信号発生ユニット1の内部ブロック
FIG. 2 is an internal block diagram of the electric field reference signal generation unit 1.

【図3】 電界監視ユニット6の内部ブロック図FIG. 3 is an internal block diagram of the electric field monitoring unit 6.

【符号の説明】[Explanation of symbols]

1 電界基準信号発生ユニット 2 送信アンテナ 3 送出される基準信号(電波) 4 デジタル複写機 5 送出される不要輻射 6 電界監視ユニット 7 受信アンテナ 8 受信される基準信号(電波) 9 医療機器 10 不要輻射が伝播して到達した妨害波 11 制御部 12 送信部 13 表示部 14 放射電界強度スイッチ 15 識別コード設定スイッチ 16 制御部 17 電界強度測定部 18 受信部 19 コード検出部 20 表示部 21 耐電界強度スイッチ 1 Electric field reference signal generation unit 2 transmitting antenna 3 Transmitted reference signal (radio wave) 4 Digital copier 5 Unwanted radiation transmitted 6 Electric field monitoring unit 7 receiving antenna 8 Reference signal (radio wave) received 9 Medical equipment 10 Unwanted waves propagated by unwanted radiation 11 Control unit 12 Transmitter 13 Display 14 Radiation electric field strength switch 15 Identification code setting switch 16 Control unit 17 Electric field strength measurement section 18 Receiver 19 Code detector 20 Display 21 Electric field strength switch

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 所定の周波数成分で所定レベルの電界信
号を発生する少なくとも一つの基準信号発生手段と、 前記手段から分離され、受信した電界信号の電界強度を
測定し測定結果に基いた電界強度に関する信号を出力す
る電界強度測定手段と、 電界強度測定手段の出力信号を受けて警告をだすか否か
判断をする判断手段と、 前記判断手段の判断を表示する表示手段、からなること
を特徴とする誤動作防止システム。
1. An at least one reference signal generating means for generating an electric field signal of a predetermined level with a predetermined frequency component, and an electric field strength based on the measurement result obtained by measuring the electric field strength of the electric field signal received separately from the reference means. And a display unit for displaying the judgment of the judgment unit. The electric field strength measurement unit outputs a signal regarding And malfunction prevention system.
【請求項2】 コード情報を含む所定の周波数成分で所
定レベルの電界信号を発生する少なくとも一つの基準信
号発生手段と、 前記手段から分離され、受信した電界信号の電界強度を
測定し測定結果に基いた電界強度に関する信号を出力す
る電界強度測定手段と、 受信した電界信号からコード情報を出力するコード受信
手段と、 電界強度測定手段の出力信号を受けて警告をだすか否か
判断をする判断手段と、 前記判断手段の判断結果および前記受信したコード情報
もしくはそれに対応する内容を表示する表示手段、から
なることを特徴とする誤動作防止システム。
2. At least one reference signal generating means for generating an electric field signal of a predetermined level with a predetermined frequency component containing code information, and measuring the electric field strength of the electric field signal which is separated from the electric field signal and received as a measurement result. An electric field strength measuring means for outputting a signal related to the electric field strength based on the code, a code receiving means for outputting code information from the received electric field signal, and a judgment for receiving an output signal of the electric field strength measuring means to judge whether or not to issue a warning. A malfunction prevention system comprising: a means and a display means for displaying the judgment result of the judgment means and the received code information or contents corresponding thereto.
JP2002116197A 2002-04-18 2002-04-18 Malfunction prevention system Withdrawn JP2003308578A (en)

Priority Applications (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006238411A (en) * 2005-01-31 2006-09-07 Icom Inc Receiver

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006238411A (en) * 2005-01-31 2006-09-07 Icom Inc Receiver

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