JP2004096566A - Inductive communication equipment - Google Patents

Inductive communication equipment Download PDF

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Publication number
JP2004096566A
JP2004096566A JP2002257076A JP2002257076A JP2004096566A JP 2004096566 A JP2004096566 A JP 2004096566A JP 2002257076 A JP2002257076 A JP 2002257076A JP 2002257076 A JP2002257076 A JP 2002257076A JP 2004096566 A JP2004096566 A JP 2004096566A
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device
transmission
linear body
3b
coupling device
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Japanese (ja)
Inventor
Masato Hayakawa
Katsutoshi Kitajima
北島 勝利
早川 正人
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Toenec Corp
株式会社トーエネック
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Abstract

PROBLEM TO BE SOLVED: To make performable transmission and reception by easily forming a transmission line utilizing a wire-shaped body in an optional section.
SOLUTION: Inductive communication equipment is provided with coupling devices 3A and 3B composed of a toroidal type coil 7 arranged so as to surround the outer periphery of the wire-shaped bodies 2A and 2B such as grounded communication lines and divided into two and a transmitter 5 and a receiver 6 respectively connected through a frequency tuning circuit 12 to the coupling devices 3A and 3B. The output signals of the transmitter 5 and the receiver 6 are induced to the wire-shaped bodies 2A and 2B by the coupling devices 3A and 3B and the transmission and reception mutually between the inductive communication equipment are performed by a ground return system.
COPYRIGHT: (C)2004,JPO

Description

【0001】 [0001]
【発明が属する技術分野】 TECHNICAL FIELD invention belongs]
本発明は、通信ケーブルシース又はメッセンジャーワイヤー等(本明細書においては、単に線状体と言う)のに結合して送受信を行う誘導通信装置に関する。 The present invention relates to a communication cable sheath or messenger wire or the like (herein, simply referred to as linear body) relates inductive communication apparatus that performs transmission and reception of bind to.
【0002】 [0002]
【従来の技術】 BACKGROUND OF THE INVENTION
従来、この種の誘導通信装置としては、平衡対メタルケーブルの絶縁心線に半割状のトロイダル型に巻回した半割状のトロイダル型コイルを装設し、このトロイダル型コイルから前記平衡対メタルケーブルに流れている信号を取出し、該平衡対メタルコイルに信号を流して送受信するように構成されたものが案出されている(例えば、特許文献1参照。)。 Conventionally, as this type of induction communication device, the half-shaped toroidal coil wound in a half-shaped toroidal type insulated wires of a balanced pair copper cables and So設, the balanced pair from the toroidal coil It retrieves the signal flowing in the metal cable, which is configured to transmit and receive by passing a signal to the balanced pair metal coil is devised (e.g., see Patent Document 1.).
また、コイルを磁性体に巻付けるとともに同調回路を設けた電磁誘導結合器をトランシーバーに設けて、該電磁誘導結合器によって電磁誘導により受発信信号を制御するとともに、電力ケーブルシース又は配線等に各トランシーバーの電磁誘導結合器を電力ケーブルシース又は配線等に近接又は接触させて、一方のトランシーバーの発する電波を誘導して他方のトランシーバーでこれを受信して情報を相互に伝達するように構成されたものが案出されている(例えば、特許文献2参照。)。 Further, by providing the electromagnetic inductive coupler having a tuning circuit with winding the coil in the magnetic to the transceiver, and controls the incoming and outgoing signal by electromagnetic induction by the electromagnetic induction coupler, each power cable sheath or wiring, etc. the transceiver of the electromagnetic inductive coupler in close proximity or contact with a power cable sheath or wire or the like, was to induce a radio wave emitted from one transceiver configured to transmit the received and information to one another so the other transceiver what is devised (e.g., see Patent Document 2.).
【0003】 [0003]
【特許文献1】 [Patent Document 1]
特開昭63−242033号公報(第2−3頁、第1図) JP 63-242033 discloses (2-3 pages, Fig. 1)
【特許文献2】 [Patent Document 2]
特開2000−286759号公報(第2−3頁、図3) JP 2000-286759 JP (2-3 pages, Fig. 3)
【0004】 [0004]
【発明が解決しようとする課題】 [Problems that the Invention is to Solve
しかしながら、上記した従来の装置にあって、前者のものにおいては、あくまでも、メタル通信線路の絶縁心線を切断することなく分岐して送受信を行うことにとどまるものあり、後者のものにおいては、とう道トンネル等の閉塞地域内という限られた通信にとどまるもので、片通信携帯式を基本にした無線通信で音声を伝送するものであった。 However, in the conventional device described above, in those of the former, strictly, there shall remain in the transmit and receive branches without cutting the insulated wires of metal communication lines, the latter ones, Tou intended to stay in communication their limited in occlusion regions such road tunnels, it was to transmit voice in a wireless communication that the base pieces communication portable.
そこで、本発明は、上記した従来の両装置とは異なる誘導通信装置であって、例えば、工事、保守等臨時に、一時的な回線構成を必要とするときに使用でき、既設の線状体を利用した伝送回線を簡単かつ任意の区間に形成して送受信を可能とした誘導通信装置を提供することを目的とするものである。 Accordingly, the present invention provides a different induction communication device from the conventional both apparatuses described above, for example, construction, maintenance, etc. temporary, it can be used to require temporary line configuration, existing linear body it is an object of the present invention to a transmission line which is utilized to form simple and arbitrary section provides an inductive communication device capable of transmitting and receiving.
【0005】 [0005]
【課題を解決するための手段】 In order to solve the problems]
請求項1記載の発明にあっては、接地された通信線等の線状体の外周を囲むように配置されかつ半割り状に形成されたトロイダル型コイルからなる結合装置と、該結合装置とそれぞれ周波数同調回路を介して接続された送信装置及び受信装置とを備えた誘導通信装置であって、結合装置によって線状体に送信装置及び受信装置の出力を誘導させてアースリタン方式により誘導通信装置の相互間の送受信を行うように構成したことを要旨とする。 In the first aspect of the present invention, a coupling device consisting of toroidal coil formed is disposed so as to surround the outer periphery of the linear body of the communication line or the like which is grounded and semi split shape, and the coupling device each an induction communication device and a connected transmitting apparatus and receiving apparatus via a frequency tuning circuit, inductive communication device by Asuritan scheme derived so the output of the transmitter and receiver to the linear body by the coupling device and summarized in that configured to transmit and receive between each other.
【0006】 [0006]
この構成によれば、送受信装置のそれぞれの結合装置を線状体に配置することによって、該送信装置からの送信信号を結合装置により誘導してその送信信号を線状体に伝送し、線状体からの受信信号を結合装置により誘導して受信装置に伝送する送受信をアースリタン方式によって行うものであり、線状体を利用した伝送回線を簡単かつ任意の区間に形成して誘導通信装置の相互間の送受信を可能にするものである。 According to this configuration, by placing a respective coupling device transceiver to linear body, and induced by binding apparatus a transmission signal from the transmitting apparatus to transmit the transmission signal to the linear body, a linear transmission and reception to transmit the received signal to the receiving device by induced coupling device from the body are those performed by Asuritan method, mutual induction communication device to form a transmission line using a linear body easily and arbitrary section it is those that permit the transmission and reception between.
また、結合装置による誘導電力の増大を図るとともに、それぞれの送信装置及び受信装置との間に周波数同調回路を設けることにより、誘導通信装置として高品質でかつ多チャンネル化が可能となる。 Further, while achieving an increase in the inductive power by coupling device, by providing a frequency tuning circuit between the respective transmitting and receiving devices, high-quality and and multiple channels can be achieved as an inductive communication apparatus.
【0007】 [0007]
【発明の実施の形態】 DETAILED DESCRIPTION OF THE INVENTION
以下、本発明を具体化した各実施の形態を図にしたがって詳述する。 Hereinafter will be described in detail according to FIG each embodiment embodying the present invention.
図1に示すように、誘導通信装置1は、両端または任意の点で接地されている通信ケーブルのシース又はメッセンジャーワイヤー、吊線等の線状体2Aに配置される結合装置3Aと、該結合装置3Aにケーブル4Aを介して接続された送信装置5と、同じく通信ケーブルのシース又はメッセンジャーワイヤー等の線状体2Bに配置される結合装置3Bと、該結合装置3Bにケーブル4Bを介して接続された受信装置6とから構成されていて、親装置としての一つの誘導通信装置1Aと、該親装置としての誘導通信装置1Aと送受信可能な子装置としての誘導通信装置1aとを備えている。 As shown in FIG. 1, the induction communication device 1, a sheath or messenger wire communications cable which is grounded at both ends or at any point, the coupling device 3A disposed in linear body 2A hanging wire or the like, the coupling device a transmitting device 5 which is connected via a cable 4A to 3A, are connected also a coupling device 3B arranged in linear body 2B sheath or messenger wires of a communication cable, via a cable 4B to the coupling device 3B It was be composed from the receiving apparatus 6 which includes a single inductive communication system 1A as a parent device, an inductive communication apparatus 1a as inductive communication apparatus 1A and which can be transmitted and received child apparatus as parent device. なお、子装置については、周波数分割で複数個、例えば、5台まで追加することができる。 Note that the child device, a plurality frequency division, for example, may be added up to five.
【0008】 [0008]
図2、図3に示すように、前記結合装置3Aはトロイダル型コイル7によりその主体部が構成され、該トロイダル型コイル7は半割り円形状に形成されるとともに、それぞれのコア7a、7bが半割り状のカバー部材8に装設されている。 Figure 2, as shown in FIG. 3, the coupling device 3A its main portion by toroidal coil 7 is formed, together with the toroidal coil 7 is formed in the half-circular shape, each core 7a, 7b is It is So設 the half-shaped cover member 8.
【0009】 [0009]
このカバー部材8は前記トロイダル型コイル7のそれぞれのコア7a、7bの外周を覆うように形成されたほぼ半円弧状の一対のカバー部8a、8bと、該カバー部8a、8bの一方端部に交差状に一体形成された握手部9a、9bとからなり、このカバー部8a、8bを握手部9a、9b側を支点として他方端部を開口及び閉口するように開閉動可能に組付けられるとともに、カバー部8a、8b(握手部9a、9b)間に弾装されたスプリング10により常にはカバー部8a、8bをその他方端部を閉口する方向に付勢されている。 The cover member 8 each core 7a of the toroidal coil 7, substantially semicircular pair of cover portions 8a formed so as to cover the outer periphery of 7b, and 8b, the cover portion 8a, one end of 8b assembled to be opened and closed so as to open and closes the other end integrally formed handshake portion 9a, consists of a 9b, the cover portion 8a, 8b of the handshake part 9a, and 9b side as a fulcrum in the intersection shape together with the cover portion 8a, 8b (handshake portion 9a, 9b) constantly by elastically by a spring 10 between and is urged in the direction of closing the other side edge covering portion 8a, the 8b.
【0010】 [0010]
なお、カバー部8a、8bのいずれか一方には該結合装置3Aのトロイダル型コイル7と送信装置5とをケーブル4Aを介して接続するための接続端子11が形成されている。 The cover portion 8a, a connection terminal 11 for connecting the transmission device 5 and the toroidal coil 7 of the coupling device 3A through the cable 4A is formed on one of 8b. また、受信装置6側の結合装置3Bは前述した結合装置3Aと同様に構成されているためその説明を省略する。 The coupling device 3B of the receiver 6 side will be omitted because it is the same configuration as the coupling device 3A described above.
【0011】 [0011]
しかして、両結合装置3A、3Bは、図4、図5に示すように、線状体2A、2Bに対してその半割り構造を介して巻回状態で装設されるものである。 Thus, both binding devices 3A, 3B is 4, as shown in FIG. 5, linear body 2A, are those So設 in wound state via the half-split structure with respect 2B.
【0012】 [0012]
また、図2a及び図6aに示すように、前記結合装置3A、3Bにおけるトロイダル型コイル7と送信装置5及び受信装置との間には、コンデンサ12aとトロイダル型コイル7に巻回されたコイル12bによる周波数同調回路12が設けられている。 Further, as shown in FIGS. 2a and Figure 6a, the binding device 3A, between the toroidal coil 7 and the transmission device 5 and the receiving apparatus in 3B, the capacitor 12a and the toroidal coil 7 wound on the coil 12b frequency tuning circuit 12 is provided by.
【0013】 [0013]
そして、この周波数同調回路12は、図6bに示すように、前記コンデンサ12aとトロイダル型コイル7に巻回されたコイル12bとを2ヶ所に設けて信号に位相差をもたした構成としてもよく、また、トロイダル型コイル7に巻回されたコイル12bと、さらに3つのコイル12c〜12c及びコンデンサ12a〜12aとを接続してフィルタ効果をもたすように構成してもよい。 Then, the frequency tuning circuit 12, as shown in Figure 6b, may be configured to Motashi a phase difference signal provided with the capacitor 12a and the toroidal coil 7 wound on the coil 12b at two positions in addition, a coil 12b which is wound toroidal coil 7 wound may be configured to Motas the filter effect by connecting the three further coils 12c~12c and capacitor 12A~12a.
【0014】 [0014]
上述のように構成された親装置としての誘導通信装置1A及び複数の子装置としての誘導通信装置1aによる通信方法について説明する。 Communication method according induction communication device 1a as the induction communication system 1A and a plurality of slave devices as a parent apparatus configured as described above will be described.
【0015】 [0015]
さて、図1に示すように、親装置としての誘導通信装置1Aの送信装置5及び受信装置6のそれぞれの結合装置3A、3Bを線状体2A、2Bに対してその半割り構造を介して巻回状態で配置する。 Now, as shown in FIG. 1, via the halved structure each of the coupling device 3A of the transmitter 5 and a receiver 6 of the induction communication system 1A as a parent device, the 3B linear body 2A, with respect 2B It is placed in a wound state. このように、線状体2A、2Bに分割することにより、送信出力が、受信装置に回り込み、妨害を与えのを防止することができる。 Thus, by dividing the linear body 2A, the 2B, transmission output, sneak to the receiving apparatus, it is possible to prevent the disturbing.
【0016】 [0016]
すなわち、両結合装置3A、3Bにおいて、カバー部材8をスプリング10の付勢力に抗して開動作してその開口部から線状体2A(2B)の外周に対して嵌込み該カバー部材8の開動作を止めて、そのままスプリング10の付勢力により開口部を閉口して線状体2A(2B)に配置する。 That is, both coupling device 3A, in 3B, the linear body 2A from the opening operation to the opening against the urging force of the spring 10 the cover member 8 of the cover member 8 the fitting with respect to the outer circumference of the (2B) stop opening operation, it is placed in closed to linear body 2A opening by the urging force of the spring 10 (2B).
【0017】 [0017]
上記状態において、親装置としての誘導通信装置1Aにおける送信動作については、マイク(図示しない)等により外部から音声を入力すると、該音声の入力信号が音声増幅手段(図示しない)によって一定レベルに増幅されて送信装置5に入力され、該送信装置5において、その変調回路によって所定周波数の変調波に変換され、トロイダル型コイル7を主体とする結合装置3Aを介して線状体2Aに送出(伝送)される。 In the above state, the transmission operation in the induction communication system 1A as a parent device, entering a voice from the outside through the microphone (not shown), amplified to a constant level input signal voice is the voice amplification means (not shown) is input to the transmission device 5 is, in the transmission apparatus 5 are converted to the modulated wave of a predetermined frequency by the modulation circuit, sent to linear body 2A via the coupling device 3A mainly composed of toroidal coil 7 (transmission ) by the.
【0018】 [0018]
そして、親装置としての誘導通信装置1Aと同様に線状体2A、2Bに対して両結合装置3A、3Bを介して配置された子装置としての誘導通信装置1aは同時に親装置としての誘導通信装置1Aからの信号を受信するものである。 The induction communication as inductive communication device 1a simultaneously parent device as a child device disposed both coupling devices 3A, through 3B inductive communication apparatus 1A as well as linear body 2A, with respect to 2B as a parent device it is intended to receive signals from the device 1A.
【0019】 [0019]
次いで、親装置としての誘導通信装置1Aにおける受信動作については、子装置としての誘導通信装置1aからそれぞれ異なった周波数で変調された信号を線状体2Bから結合装置3Bを介して受信装置6により受信し、該受信装置6において、子装置の周波数に該当する受信装置6により音声信号に変換されて音声増幅手段(図示しない)に入力され、該音声増幅手段により一定レベルに増幅されてスピーカ(図示しない)等により外部に音声を出力する。 Next, the reception operation in the induction communication system 1A as a parent apparatus, the receiving apparatus 6 via a coupling device 3B a signal modulated by respective different frequencies from the induction communication device 1a as the child device from the linear body 2B receiving, at the receiving device 6, by the receiving apparatus 6 corresponding to the frequency of the child device is converted into a voice signal is input to the audio amplifier means (not shown), is amplified to a predetermined level by the voice amplifying means speaker ( outputs audio to the outside by a non-illustrated) or the like.
【0020】 [0020]
なお、前記トロイダル型コイル7を主体とする結合装置3A、3Bの動作原理については、一般に知られているように、線状体2A、2Bに信号電流が流れると、アンペアの右ねじの法則により、線状体2A、2Bの円周方向に磁界が生起し、その磁界が線状体2A、2Bの周囲にループ上に配置したトロイダル型コイル7に収束され、ニューマンの法則によりトロイダル型に巻回したコア7a、7bに起電力を生起する効果を利用するものである。 Incidentally, the coupling device 3A mainly the toroidal coil 7, the operation principle of 3B, as is generally known, the linear body 2A, the signal current flows through the 2B, the right-handed screw rule of Ampere , occurred magnetic field linear body 2A, in the circumferential direction of 2B, it is converged to the toroidal coil 7 disposed on the loop around the magnetic field linear body 2A, 2B, around the toroidal's law Newman Turn core 7a, it is to utilize the effect of occurring an electromotive force 7b.
【0021】 [0021]
次に、子装置としての誘導通信装置1aにおける送信動作については、親装置としての誘導通信装置1Aと同様にして、マイク(図示しない)等により外部から音声を入力すると、該音声の入力信号が音声増幅手段(図示しない)によって一定レベルに増幅されて送信装置5に入力され、該送信装置5において、自局に割り当てられた周波数に変調波に変換され、その変調された信号をトロイダル型コイル7を主体とする結合装置3Aを介して線状体2Aに送出(伝送)される。 Next, the transmission operation in the induction communication device 1a as the child apparatus, in the same manner as the induction communication system 1A as a parent device, entering a voice from the outside by the microphone (not shown) or the like, the speech input signal is input to the transmission device 5 is amplified at a constant level by the audio amplifying means (not shown), in the transmission apparatus 5 are converted to the modulated wave to the frequency assigned to the own station, the toroidal coil and the modulated signal 7 is sent to the linear body 2A via the coupling device 3A mainly of (transmission).
【0022】 [0022]
そして、親装置としての誘導通信装置1Aにおける結合装置3Bを介して受信装置6により受信し、親装置としての誘導通信装置1Aにおいて子装置の周波数に該当する受信装置6によりそれぞれの音声信号に変換されて音声増幅手段(図示しない)に入力され、該音声増幅手段により一定レベルに増幅されてスピーカ(図示しない)等により外部に音声を出力し、当該子装置としての誘導通信装置1aとの受信(通話)を行うものである。 Then, received by the receiving apparatus 6 via a coupling device 3B in the induction communication system 1A as a parent device, converts each of the audio signal by the receiving device 6 corresponding to the frequency of the child device in the induction communication system 1A as a parent device which is input to the audio amplifier means (not shown) is, and outputs audio to the outside through the speaker (not shown) is amplified to a predetermined level by the audio amplifying means, receiving the induction communication device 1a as the child apparatus (call) is to perform.
【0023】 [0023]
つぎに、子装置としての誘導通信装置1aにおける受信動作については、親装置としての誘導通信装置1Aと同様にして、該親装置としての誘導通信装置1Aからの信号を線状体2Aから結合装置3Aを介して受信装置6により受信し、該受信装置6によりそれぞれの音声信号に変換されて音声増幅手段(図示しない)に入力され、該音声増幅手段により一定レベルに増幅されてスピーカ(図示しない)等により外部に音声を出力する。 Next, the reception operation in the induction communication device 1a as the child apparatus, in the same manner as the induction communication system 1A as a parent device, the coupling device a signal from the induction communication system 1A as a parent device from the line-shaped body 2A 3A is received by the receiving apparatus 6 via the by the receiving device 6 are converted into respective audio signals are input to the audio amplifier means (not shown), not a speaker (not amplified to a predetermined level by the voice amplifying means ) and outputs the voice to the outside through the.
【0024】 [0024]
以上のように、親装置としての誘導通信装置1Aと子装置としての誘導通信装置1aとの送受信(通話)を、両端または任意の点で接地されている線状体2A、2Bと、親装置としての誘導通信装置1Aと、子装置としての誘導通信装置1aとで形成されるアースリタン方式によって行うことができる。 As described above, transmission and reception of an inductive communication apparatus 1a as the induction communication system 1A and the child device as a parent device (call), both ends or any linear body 2A which is grounded in terms, and 2B, the parent device an induction communication system 1A as can be done by Asuritan scheme formed by the inductive communication device 1a as the child apparatus.
【0025】 [0025]
次に、図7に示す別の実施の形態について説明すると、この場合は、線状体2A、2Bを一般の電灯線2Cとした場合に対応する誘導通信装置1であって、送信装置5及び受信装置6の結合装置3Aに前記電灯線2Cのコンセント15に接続(結合)される差込プラグ16を設けた態様で、その余の構成は前述した実施の形態と同様であり、同様の構成については同符号を付してその説明を省略する。 Subsequently explained is another embodiment shown in FIG. 7, in this case, an inductive communication apparatus 1 corresponding to the case where the linear body 2A, and 2B a general power line 2C, the transmission device 5 and in the receiving apparatus connected to the power line 2C outlet 15 to the coupling device 3A of 6 (coupled) by the manner in which a bayonet plug 16, the other constitution is the same as the above-described embodiment, the same configuration the description thereof is omitted by the same symbol.
【0026】 [0026]
したがって、この実施の形態においては、誘導通信装置1における差込プラグ16を電灯線2Cのコンセント15に接続(結合)して、電灯線2Cを線状体として利用するものであり、前述した実施の形態と同様に、親装置としての誘導通信装置1と、子装置としての誘導通信装置1aとの双方向通信を行うことができる。 Accordingly, in this embodiment, by connecting the attachment plug 16 into the outlet 15 of the power line 2C (coupling) in the induction communication device 1, which utilizes a power line 2C as a linear body, the above-described embodiment the Like the embodiment, it is possible to perform an inductive communication device 1 serving as a parent device, two-way communication with the induction communication device 1a as the child apparatus.
【0027】 [0027]
【発明の効果】 【Effect of the invention】
請求項1に記載の発明にあっては、送受信装置のそれぞれの結合装置を線状体に配置することによって、該送信装置からの送信信号を結合装置により誘導してその送信信号を線状体に伝送し、線状体からの受信信号を結合装置により誘導して受信装置に伝送する送受信をアースリタン方式によって行うものであり、線状体を利用した伝送回線を簡単かつ任意の区間に形成して誘導通信装置の相互間の送受信を可能にすることができる。 In the invention described in claim 1, each by placing the coupling device to the linear body, a linear body that transmit signals induced by the coupling device a transmission signal from the transmitting device of the transmitting and receiving device transmitted to the transceiver to be transmitted to the receiving device by induced coupling device receiving signals from the linear body are those performed by Asuritan method, to form a transmission line using a linear body easily and arbitrary section It may enable transmission and reception of mutual induction communication device Te.
【0028】 [0028]
さらに、結合装置による誘導電力の増大を図るとともに、それぞれの送信装置及び受信装置との間に周波数同調回路を設けることにより、誘導通信装置として高品質でかつ多チャンネル化が可能となる。 Furthermore, while achieving an increase in the inductive power by coupling device, by providing a frequency tuning circuit between the respective transmitting and receiving devices, high-quality and and multiple channels can be achieved as an inductive communication apparatus.
【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS
【図1】本発明の実施の形態における誘導通信装置を略示する説明図である。 1 is a schematic diagram that shows the induction communication device in an embodiment of the present invention.
【図2】a、bは結合装置を略示する説明図である。 [2] a, b is an explanatory diagram that schematically shown coupling device.
【図3】同じく、結合装置を略示する説明図である。 [Figure 3] Similarly, an explanatory diagram that schematically shown coupling device.
【図4】同じく、線状体に対する結合装置の配置状態を示す説明図である。 [4] Similarly, an explanatory diagram showing the arrangement of the coupling device for a linear body.
【図5】同じく、線状体に対する結合装置の配置状態を断面で示す説明図である。 [5] Similarly, an explanatory diagram showing the arrangement of the coupling device for a linear body in cross-section.
【図6】a、b、cは同調回路の説明図である。 [6] a, b, c is an explanatory diagram of the tuning circuit.
【図7】別の実施の形態における誘導通信装置を略示する説明図である。 7 is an explanatory view substantially that shows the induction communication device in another embodiment.
【符号の説明】 DESCRIPTION OF SYMBOLS
1 誘導通信装置2A、2B 線状体3A、3B 結合装置5 送信装置6 受信装置7 トロイダル型コイル12 周波数同調回路 1 inductive communication apparatus 2A, 2B linear bodies 3A, 3B coupling device 5 transmitting device 6 receiving apparatus 7 toroidal coil 12 frequency tuning circuit

Claims (1)

  1. 接地された通信線等の線状体の外周を囲むように配置されかつ半割り状に形成されたトロイダル型コイルからなる結合装置と、該結合装置とそれぞれ周波数同調回路を介して接続された送信装置及び受信装置とを備えた誘導通信装置であって、結合装置によって線状体に送信装置及び受信装置の出力を誘導させてアースリタン方式により誘導通信装置の相互間の送受信を行うように構成したことを特徴とする誘導通信装置。 A coupling device comprising a toroidal coil is arranged to surround the outer periphery of the linear body such as a ground communication line formed in and semi split shape, the coupling device and transmission, which are connected via a frequency tuning circuit an induction communication device that includes a device and a receiving device, and configured to transmit and receive mutual induction communication device by Asuritan system by inducing an output of the transmitter and receiver to the linear body by the coupling device inductive communication apparatus characterized by.
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