JPH08168114A - On-vehicle device and vehicle controller - Google Patents
On-vehicle device and vehicle controllerInfo
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- JPH08168114A JPH08168114A JP30664194A JP30664194A JPH08168114A JP H08168114 A JPH08168114 A JP H08168114A JP 30664194 A JP30664194 A JP 30664194A JP 30664194 A JP30664194 A JP 30664194A JP H08168114 A JPH08168114 A JP H08168114A
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- circuit
- oscillation signal
- frequency
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- Train Traffic Observation, Control, And Security (AREA)
- Selective Calling Equipment (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、車上装置及び車両制御
装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an on-vehicle device and a vehicle control device.
【０００２】[0002]
【従来の技術】従来の自動列車停止装置（以下ＡＴＳ装
置と称する。）等の車上装置は、いわゆる変周式の発振
回路を用いて情報伝送をおこなうことにより車両制御を
行なう。変周式の発振回路は、「鉄道技術者のための電
気概論、信号シリーズＮｏ７、ＡＴＳ・ＡＴＣ」（日本
鉄道電気技術協会発行）の第６頁から第１０頁に、また
は「信号」（吉村 寛、吉越 三郎共著、交友社発行）
の第５６１頁から第５６８頁に詳述されている。2. Description of the Related Art An on-board device such as a conventional automatic train stop device (hereinafter referred to as an ATS device) performs vehicle control by transmitting information using a so-called variable frequency oscillation circuit. The variable-frequency oscillation circuit can be found on pages 6 to 10 of "Introduction to Electricity for Railway Engineers, Signal Series No. 7, ATS / ATC" (published by the Japan Railway Electrical Engineering Association) or "Signal" (Yoshimura). Hiro, Saburo Yoshikoshi, co-authored by Koyusha)
Pp. 561-568.
【０００３】かかる変周式の発振回路は、車上子を増幅
器の帰還回路として用い、車上子が地上子と結合しない
常時状態では、常時発振周波数で発振している。地上子
は、コイルとコンデンサとを含み、固有の共振周波数を
有している。この状態で車上子が地上子と結合すると、
地上子の選択度Ｑが十分に高いので、発振回路の発振周
波数は、周波数の引込現象（Ziehen現象）によって地上
子の共振周波数に変周される。Such a variable-frequency oscillation circuit uses the car top as a feedback circuit of an amplifier, and always oscillates at the oscillation frequency in a normal state where the car top is not coupled with the ground core. The ground element includes a coil and a capacitor and has an inherent resonance frequency. In this state, when the car child joins with the ground child,
Since the selectivity Q of the ground element is sufficiently high, the oscillation frequency of the oscillation circuit is changed to the resonance frequency of the ground element by the frequency pulling phenomenon (Ziehen phenomenon).
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、最近の
車両制御装置は制御の高度化・複雑化に伴って地上と車
上との間で大量の情報伝送が必要になり、情報量を増大
し得る車上装置の実現が急務となっている。情報量を増
やすためには、変周周波数が常時発振周波数よりも必ず
高くなる変周式発振回路の性質から、以下の二通りの方
法を採り得る。その一つは、常時発振周波数を下げて従
来の常時発振周波数との間に新しい変周周波数を設定す
る方法である。もう一つは、常時発振周波数を固定し、
従来の周波数帯域の上側に変周周波数を設定する方法で
ある。However, the recent vehicle control device requires a large amount of information transmission between the ground and the vehicle as the control becomes more sophisticated and complicated, which can increase the amount of information. The realization of on-board equipment is an urgent task. In order to increase the amount of information, the following two methods can be adopted due to the nature of the variable frequency oscillation circuit in which the variable frequency always becomes higher than the oscillation frequency. One of them is a method of lowering the constant oscillation frequency and setting a new variable frequency with the conventional constant oscillation frequency. The other is that the oscillation frequency is always fixed,
This is a method of setting the variable frequency above the conventional frequency band.
【０００５】常時発振周波数を変更する方法は、常時発
振周波数の信号が地上側で車両検知等に利用されている
ので、既存設備の変更を余儀なくされ、変更に多大の労
力を必要とする。常時発振周波数を固定した方法では、
変周周波数の伝送特性の観点から上限がある。In the method of changing the constant oscillation frequency, since the signal of the constant oscillation frequency is used for vehicle detection on the ground side, it is necessary to change the existing equipment, and the change requires a great deal of labor. With the method that fixed the oscillation frequency at all times,
There is an upper limit from the viewpoint of transmission characteristics of variable frequency.
【０００６】そこで、本発明の課題は、既存の設備を変
更することなく情報量を増やし得る車上装置及び車両制
御装置を提供することである。[0006] Therefore, an object of the present invention is to provide an on-vehicle device and a vehicle control device which can increase the amount of information without changing existing equipment.
【０００７】[0007]
【課題を解決するための手段】上述した課題解決のた
め、本発明に係る車上装置は、増幅回路と、加算回路
と、車上子と、フィルタ回路と、発振器とを含む。前記
加算回路、前記車上子及び前記フィルタ回路の直列回路
は、前記増幅回路に対して帰還回路を形成するように接
続され、帰還型発振回路を構成する。前記車上子は、共
振回路を有する地上子と電磁的に結合する。前記増幅回
路は、前記車上子が前記地上子と結合していない時に常
時発振周波数の第１の発振信号を出力し、前記車上子が
前記地上子と結合している時に変周発振信号を出力する
ものであって、前記変周発振信号は、前記第１の発振信
号の周波数が前記地上子の共振周波数に変周されて得ら
れるものである。前記発振器は、前記第１の発振信号及
び前記変周発振信号の周波数とは異なる周波数の第２の
発振信号を発生する。前記加算回路は、前記増幅回路の
後段に接続され、前記増幅回路から与えられる前記第１
の発振信号または前記変周発振信号と、前記発振器から
与えられる前記第２の発振信号とを加算し、加算信号を
前記車上子に供給する。前記フィルタ回路は、前記増幅
回路の前段に接続され、前記加算信号に含まれる前記第
２の発振信号の通過を阻止しそれ以外の信号を通過させ
る特性を有する。In order to solve the problems described above, an on-vehicle device according to the present invention includes an amplifier circuit, an adding circuit, an on-board member, a filter circuit, and an oscillator. The series circuit of the adder circuit, the train car, and the filter circuit is connected to the amplifier circuit so as to form a feedback circuit, and constitutes a feedback type oscillation circuit. The train core is electromagnetically coupled to the ground plane having a resonance circuit. The amplifier circuit outputs a first oscillating signal having an oscillating frequency at all times when the car top is not coupled to the ground element, and a variable frequency oscillation signal when the car top is coupled to the ground element. And the frequency-change oscillation signal is obtained by frequency-changing the frequency of the first oscillation signal to the resonance frequency of the ground element. The oscillator generates a second oscillation signal having a frequency different from the frequencies of the first oscillation signal and the variable frequency oscillation signal. The adder circuit is connected to a subsequent stage of the amplifier circuit and is provided with the first circuit provided from the amplifier circuit.
Or the variable frequency oscillation signal and the second oscillation signal given from the oscillator are added, and the addition signal is supplied to the car top. The filter circuit is connected to the preceding stage of the amplifier circuit and has a characteristic of blocking passage of the second oscillation signal included in the addition signal and passing other signals.
【０００８】好ましい例では、前記第２の発振信号の周
波数は、前記地上子の共振周波数の周波数帯域に含まれ
る。In a preferred example, the frequency of the second oscillation signal is included in the frequency band of the resonance frequency of the ground element.
【０００９】本発明に係る車両制御装置は、車上装置
と、地上装置とを含む。前記車上装置は、上記記載のも
のでなる。The vehicle control device according to the present invention includes an on-vehicle device and a ground device. The on-board device is as described above.
【００１０】前記地上装置は、地上子と、地上受信器と
を含んでいる。前記地上子は、制御信号に対応する共振
周波数を有している。前記地上受信器は、前記車上子と
電磁結合して前記加算信号を受信し、前記第２の発振信
号を解読する。The ground equipment includes a ground element and a ground receiver. The ground element has a resonance frequency corresponding to the control signal. The ground receiver electromagnetically couples with the car top to receive the addition signal and decode the second oscillation signal.
【００１１】好ましい例では、前記地上受信器は、ルー
プコイルと、フィルタ回路とを有している。前記ループ
コイルは、前記車上子と電磁結合して前記加算信号を受
信する。前記フィルタ回路は前記加算信号から前記第２
の発振信号を抽出する。In a preferred example, the terrestrial receiver has a loop coil and a filter circuit. The loop coil is electromagnetically coupled to the car top to receive the addition signal. The filter circuit outputs the second signal from the addition signal.
The oscillation signal of is extracted.
【００１２】[0012]
【作用】加算回路、車上子及びフィルタ回路の直列回路
は、増幅回路に対して帰還回路を形成するように接続さ
れ、帰還型発振回路を構成している。このため、変周式
の発振回路を構成できる。The series circuit of the adder circuit, the train car and the filter circuit is connected to the amplifier circuit so as to form a feedback circuit, and constitutes a feedback type oscillation circuit. Therefore, a variable-frequency oscillator circuit can be configured.
【００１３】車上子は、共振回路を有する地上子と電磁
的に結合する。増幅回路は、車上子が地上子と結合して
いない時は第１の発振信号を出力し、車上子が地上子と
結合している時は変周発振信号を出力する。変周発振信
号は、第１の発振信号の周波数が地上子の共振周波数に
変周されて得られるものである。このため、車上子が地
上子と結合した時に、増幅回路の出力信号が第１の発振
信号から変周発振信号に変化し、変周発振信号に対応し
た情報を受信できる。The on-board child is electromagnetically coupled to the ground child having a resonance circuit. The amplifier circuit outputs the first oscillation signal when the car top is not coupled to the ground element, and outputs the variable frequency oscillation signal when the car top is coupled to the ground element. The frequency-changed oscillation signal is obtained by changing the frequency of the first oscillation signal to the resonance frequency of the ground element. Therefore, when the on-board member is coupled with the ground member, the output signal of the amplifier circuit changes from the first oscillation signal to the variable oscillation signal, and the information corresponding to the variable oscillation signal can be received.
【００１４】発振器は、第１の発振信号及び変周発振信
号の周波数とは異なる周波数の第２の発振信号を発生す
る。加算回路は、増幅回路の後段に接続され、増幅回路
から与えられる第１の発振信号または変周発振信号と、
発振器から与えられる第２の発振信号とを加算し、加算
信号を車上子に供給する。このため、車上子からは第１
の発振信号または変周発振信号と、第２の発振信号との
加算信号を送信できる。従って、第２の発振信号の周波
数を従来の常時発振周波数に対応させることにより、従
来設備をそのまま利用して車両検知等を行なうことがで
きる。このため、常時発振周波数を下げて情報量を増や
した場合でも、従来の車両検知等の設備を変更する必要
がない。The oscillator generates a second oscillation signal having a frequency different from the frequencies of the first oscillation signal and the variable frequency oscillation signal. The adder circuit is connected to the subsequent stage of the amplifier circuit, and has a first oscillation signal or a frequency-change oscillation signal provided from the amplifier circuit.
The second oscillation signal given from the oscillator is added, and the addition signal is supplied to the car top. For this reason,
It is possible to transmit an addition signal of the second oscillation signal and the oscillation signal or the frequency-change oscillation signal. Therefore, by making the frequency of the second oscillation signal correspond to the conventional constant oscillation frequency, vehicle detection and the like can be performed using the conventional equipment as it is. Therefore, even if the oscillation frequency is constantly lowered to increase the amount of information, it is not necessary to change the conventional equipment such as vehicle detection.
【００１５】フィルタ回路は、増幅回路の前段に接続さ
れ、加算信号に含まれる第２の発振信号の通過を阻止し
それ以外の信号を通過させる特性を有するから、第２の
発振信号が帰還回路を一巡することがない。従って、増
幅回路からは第１の発振信号または変周発振信号のみが
得られる。このため、常時発振周波数を従来のものより
も下げ、情報量を増やすことができる。Since the filter circuit is connected to the preceding stage of the amplifier circuit and has a characteristic of blocking the passage of the second oscillation signal contained in the addition signal and passing the other signals, the second oscillation signal is fed back to the feedback circuit. Never make a round. Therefore, only the first oscillation signal or the frequency-change oscillation signal is obtained from the amplifier circuit. Therefore, the constant oscillation frequency can be lowered as compared with the conventional one, and the amount of information can be increased.
【００１６】第２の発振信号の周波数は、地上子の共振
周波数の周波数帯域に含まれるから、限られた周波数帯
域を有効に利用して制御信号の数を増やすことができ
る。Since the frequency of the second oscillating signal is included in the frequency band of the resonance frequency of the ground element, the number of control signals can be increased by effectively utilizing the limited frequency band.
【００１７】本発明に係る車両制御装置は、車上装置
と、地上装置とを含む。車上装置は、上記記載のもので
なる。地上装置は、地上子と、地上受信器とを含んでい
る。地上子は、制御信号に対応する共振周波数を有して
いる。このため、地上子の共振周波数を従来の常時発振
周波数よりも低く設定することにより、情報量を増やし
た車両制御装置が得られる。The vehicle control device according to the present invention includes an on-vehicle device and a ground device. The on-board device is the one described above. The ground equipment includes a ground child and a ground receiver. The ground element has a resonance frequency corresponding to the control signal. Therefore, by setting the resonance frequency of the ground element lower than the conventional continuous oscillation frequency, it is possible to obtain the vehicle control device in which the amount of information is increased.
【００１８】地上受信器は、車上子と電磁結合して加算
信号を受信し、第２の発振信号を解読する。このため、
既存の設備を変更することのない車両制御装置が得られ
る。The ground receiver electromagnetically couples with the car top to receive the addition signal, and decodes the second oscillation signal. For this reason,
It is possible to obtain a vehicle control device that does not change existing equipment.
【００１９】[0019]
【実施例】図１は本発明に係る車上装置の構成を示すブ
ロック図、図２は伝送情報を周波数に対応させて割り当
てた状態を示す図である。本発明に係る車上装置は、増
幅回路１と、加算回路２と、車上子３と、フィルタ回路
４と、発振器５とを含む。参照符号６は別の増幅回路、
７は地上子である。地上子７は、コイル７１と，コンデ
ンサ７２１〜７２ｎとを有し、コイル７１とコンデンサ
７２１〜７２ｎとが共振周波数ｆ１〜ｆｎのＬＣ共振回
路を構成している。共振周波数ｆ１〜ｆｎは、伝送され
る情報に対応している。コンデンサ７２１〜７２ｎは、
伝送される情報に応じていずれかが選択される。実施例
ではコンデンサ７２ｍが選択され、共振周波数ｆｍとな
っている。また、地上子７は複数の地上子で構成され、
それぞれの地上子が共振周波数ｆ１〜ｆｎを有していて
もよい。DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a block diagram showing the configuration of an on-vehicle device according to the present invention, and FIG. 2 is a diagram showing a state in which transmission information is assigned in correspondence with frequencies. The on-vehicle device according to the present invention includes an amplifier circuit 1, an adder circuit 2, an on-board child 3, a filter circuit 4, and an oscillator 5. Reference numeral 6 is another amplifier circuit,
7 is a ground child. The ground element 7 has a coil 71 and capacitors 721 to 72n, and the coil 71 and the capacitors 721 to 72n form an LC resonance circuit having resonance frequencies f1 to fn. The resonance frequencies f1 to fn correspond to the information to be transmitted. The capacitors 721 to 72n are
One is selected according to the information to be transmitted. In the embodiment, the capacitor 72m is selected and has the resonance frequency fm. The ground element 7 is composed of a plurality of ground elements,
Each ground element may have resonance frequencies f1 to fn.
【００２０】加算回路２、車上子３及びフィルタ回路４
の直列回路は、増幅回路１に対して帰還回路を形成する
ように接続され、帰還型発振回路を構成している。Adder circuit 2, train car 3 and filter circuit 4
The series circuit of is connected to the amplifier circuit 1 so as to form a feedback circuit, and constitutes a feedback oscillation circuit.
【００２１】車上子３は、共振回路を有する地上子７と
電磁的に結合する。増幅回路１は、車上子３が地上子７
と結合していない時に第１の発振信号Ｆ１を出力し、車
上子３が地上子７と結合している時に変周発振信号Ｆ２
を出力する。第１の発振信号Ｆ１の周波数ｆ０は、一般
に常時発振周波数と称される。変周発振信号Ｆ２は、第
１の発振信号Ｆ１の周波数ｆ０が地上子７の共振周波数
ｆ１〜ｆｎに変周されて得られる。実施例では、常時発
振周波数ｆ０が共振周波数ｆｍに変周される。地上子７
が他の共振周波数ｆ１〜ｆｍー１、ｆｍ＋１〜ｆｎを有
する場合も同様である。常時発振周波数ｆ０は、共振周
波数ｆ１〜ｆｎよりも低く設定されている。増幅回路１
は、一般にリミッタアンプで構成され、発振信号の振幅
制限を行い、常時発振周波数ｆ０で安定して発振する。
変周発振信号Ｆ２は、図示しない信号処理回路で識別さ
れ、適宜制御情報等に用いられる。The on-board child 3 is electromagnetically coupled to the ground child 7 having a resonance circuit. In the amplifier circuit 1, the car child 3 is the ground child 7
The first oscillation signal F1 is output when it is not coupled with the variable frequency oscillation signal F2 when the car top 3 is coupled with the ground element 7.
Is output. The frequency f0 of the first oscillation signal F1 is generally referred to as the constant oscillation frequency. The variable oscillation signal F2 is obtained by changing the frequency f0 of the first oscillation signal F1 to the resonance frequencies f1 to fn of the ground element 7. In the embodiment, the oscillation frequency f0 is constantly changed to the resonance frequency fm. Ground child 7
The same applies to the case where has other resonance frequencies f1 to fm-1 and fm + 1 to fn. The constant oscillation frequency f0 is set to be lower than the resonance frequencies f1 to fn. Amplifier circuit 1
Is generally composed of a limiter amplifier, limits the amplitude of the oscillation signal, and constantly oscillates stably at the oscillation frequency f0.
The variable frequency oscillation signal F2 is identified by a signal processing circuit (not shown) and is appropriately used for control information and the like.
【００２２】発信器５は、第１の発振信号Ｆ１及び変周
発振信号Ｆ２の周波数とは異なる周波数ｆｋの第２の発
振信号Ｆ３を発生する。周波数ｆｋは、従来の常時発振
周波数に対応するものであり、共振周波数ｆｍと共振周
波数ｆｍ＋１との間に設定されている。The oscillator 5 generates a second oscillation signal F3 having a frequency fk which is different from the frequencies of the first oscillation signal F1 and the variable oscillation signal F2. The frequency fk corresponds to the conventional constant oscillation frequency and is set between the resonance frequency fm and the resonance frequency fm + 1.
【００２３】加算回路２は、増幅回路１の後段に挿入接
続され、増幅回路１から与えられる第１の発振信号Ｆ１
または変周発振信号Ｆ２と、発信器５から与えられる第
２の発振信号Ｆ３とを加算し、加算信号Ｓ１を車上子３
に供給する。実施例では、加算信号Ｓ１を別の増幅回路
６により増幅して車上子３に供給している。加算信号Ｓ
１が車上子３に正常に供給されていることを確認するた
めに、加算信号Ｓ１は図示しない監視回路により監視さ
れている。The adder circuit 2 is inserted and connected to the subsequent stage of the amplifier circuit 1, and the first oscillation signal F1 given from the amplifier circuit 1 is provided.
Alternatively, the variable frequency oscillation signal F2 and the second oscillation signal F3 given from the oscillator 5 are added, and the addition signal S1 is added to the train car 3
Supply to. In the embodiment, the addition signal S1 is amplified by another amplifying circuit 6 and supplied to the car top 3. Addition signal S
In order to confirm that 1 is normally supplied to the car top 3, the addition signal S1 is monitored by a monitoring circuit (not shown).
【００２４】フィルタ回路４は、増幅回路１の前段に接
続され、加算信号Ｓ１に含まれる第２の発振信号Ｆ３の
通過を阻止し第１の発振信号Ｆ１及び変周発振信号Ｆ２
を通過させる特性を有する。フィルタ回路４は、バンド
パスフィルタと周波数ｆｋに対するバンドエリミネーシ
ョンフィルタで構成できる。The filter circuit 4 is connected to the preceding stage of the amplifier circuit 1 and blocks passage of the second oscillation signal F3 included in the addition signal S1 to block passage of the first oscillation signal F1 and the variable frequency oscillation signal F2.
Has the property of passing through. The filter circuit 4 can be composed of a bandpass filter and a band elimination filter for the frequency fk.
【００２５】上述したように、加算回路２、車上子３及
びフィルタ回路４の直列回路は、増幅回路１に対して帰
還回路を形成するように接続され、帰還型発振回路を構
成している。このため、変周式の発振回路を構成でき
る。As described above, the series circuit of the adder circuit 2, the train car 3, and the filter circuit 4 is connected to the amplifier circuit 1 so as to form a feedback circuit, and constitutes a feedback type oscillation circuit. . Therefore, a variable-frequency oscillator circuit can be configured.
【００２６】車上子３は、共振周波数ｆ１〜ｆｎを有す
る地上子７と電磁的に結合する。増幅回路１は、車上子
３が地上子７と結合していない時は第１の発振信号Ｆ１
を出力し、車上子３が地上子７と結合している時は変周
発振信号Ｆ２を出力する。変周発振信号Ｆ２は、常時発
振周波数ｆ０が地上子７の共振周波数ｆｍに変周されて
得られる。地上子７が他の共振周波数ｆ１〜ｆｍー１、
ｆｍ＋１〜ｆｎを有する場合も同様である。このため、
車上子３が地上子７と結合した時に、増幅回路１の出力
信号が第１の発振信号Ｆ１から変周発振信号Ｆ２に変化
し、変周発振信号Ｆ２に対応した情報を受信できる。The on-board child 3 is electromagnetically coupled to the ground child 7 having the resonance frequencies f1 to fn. The amplifier circuit 1 uses the first oscillation signal F1 when the train car 3 is not coupled to the ground train 7.
When the on-board child 3 is coupled with the ground child 7, the variable frequency oscillation signal F2 is output. The variable oscillation signal F2 is obtained by constantly changing the oscillation frequency f0 to the resonance frequency fm of the ground element 7. The ground element 7 has other resonance frequencies f1 to fm-1,
The same applies to the case of having fm + 1 to fm. For this reason,
When the car core 3 is coupled with the ground core 7, the output signal of the amplifier circuit 1 changes from the first oscillation signal F1 to the variable oscillation signal F2, and the information corresponding to the variable oscillation signal F2 can be received.
【００２７】発振器５は、第１の発振信号Ｆ１及び変周
発振信号Ｆ２の周波数とは異なる周波数ｆｋの第２の発
振信号Ｆ３を発生する。加算回路２は、増幅回路１の後
段に接続され、第１の発振信号Ｆ１または変周発振信号
Ｆ２と、第２の発振信号Ｆ３とを加算し、加算信号Ｓ１
を車上子３に供給する。加算信号Ｓ１は、車上子３が地
上子７と電磁結合していない時には、常時発振周波数ｆ
０の第１の発振信号Ｆ１と周波数ｆｋの第２の発振信号
Ｆ３との重畳信号となる。車上子３が地上子７と電磁結
合している時には、周波数ｆｍの変周発振信号Ｆ２と周
波数ｆｋの第２の発振信号Ｆ３との重畳信号となる。こ
のため、車上子３からは第１の発振信号Ｆ１または変周
発振信号Ｆ２と、第２の発振信号Ｆ３との加算信号Ｓ１
を送信できる。従って、第２の発振信号Ｆ３の周波数ｆ
ｋを従来の常時発振周波数に対応させることにより、従
来の車両検知等を行なうことができる。このため、常時
発振周波数を下げて情報量を増やした場合でも、従来の
車両検知等の設備を変更する必要がない。The oscillator 5 generates a second oscillation signal F3 having a frequency fk which is different from the frequencies of the first oscillation signal F1 and the frequency-change oscillation signal F2. The adder circuit 2 is connected to the subsequent stage of the amplifier circuit 1 and adds the first oscillation signal F1 or the variable frequency oscillation signal F2 and the second oscillation signal F3 to obtain an addition signal S1.
Is supplied to the car carrier 3. The addition signal S1 is constantly oscillated at a frequency f when the car core 3 is not electromagnetically coupled to the ground core 7.
It becomes a superposition signal of the first oscillation signal F1 of 0 and the second oscillation signal F3 of the frequency fk. When the car core 3 is electromagnetically coupled to the ground core 7, it becomes a superposition signal of the variable frequency oscillation signal F2 having the frequency fm and the second oscillation signal F3 having the frequency fk. Therefore, the addition signal S1 of the first oscillation signal F1 or the variable oscillation signal F2 and the second oscillation signal F3 is output from the train car 3.
Can be sent. Therefore, the frequency f of the second oscillation signal F3
By making k correspond to the conventional constant oscillation frequency, conventional vehicle detection and the like can be performed. Therefore, even if the oscillation frequency is constantly lowered to increase the amount of information, it is not necessary to change the conventional equipment such as vehicle detection.
【００２８】フィルタ回路４は、増幅回路１の前段に接
続され、加算信号Ｓ１に含まれる第２の発振信号Ｆ３の
通過を阻止しそれ以外の第１の発振信号Ｆ１または変周
発振信号Ｆ２を通過させる特性を有するから、第２の発
振信号Ｆ３が帰還回路を一巡することがない。従って、
増幅回路１からは第１の発振信号Ｆ１または変周発振信
号Ｆ２のみが得られる。このため、常時発振周波数を従
来のものよりも下げることにより、情報量を増やすこと
ができる。The filter circuit 4 is connected to the preceding stage of the amplifier circuit 1 and blocks passage of the second oscillation signal F3 included in the addition signal S1 and blocks the other first oscillation signal F1 or variable frequency oscillation signal F2. Since the second oscillation signal F3 has a characteristic of passing it, the second oscillation signal F3 does not go around the feedback circuit. Therefore,
Only the first oscillation signal F1 or the frequency-change oscillation signal F2 is obtained from the amplifier circuit 1. Therefore, the amount of information can be increased by lowering the constant oscillation frequency as compared with the conventional one.
【００２９】第２の発振信号Ｆ３の周波数ｆｋは、図２
に示すように、地上子７の共振周波数ｆ１〜ｆｎの周波
数帯域に含まれるから、限られた周波数帯域を有効に利
用して情報量を増やすことができる。The frequency fk of the second oscillation signal F3 is shown in FIG.
As shown in FIG. 3, since the resonance frequency f1 to fn of the ground element 7 is included in the frequency band, the limited frequency band can be effectively used to increase the amount of information.
【００３０】図３は本発明に係る車両制御装置の構成を
示すブロック図である。図において、図１及び図２と同
一参照符号は同一性ある構成部分を示している。本発明
に係る車両制御装置は、車上装置Ａと、地上装置Ｂとを
含む。車上装置Ａは、上記記載のものでなる。地上装置
Ｂは、地上子７と、地上受信器８とを含んでいる。地上
子７は、伝送情報に対応する複数の共振周波数ｆ１〜ｆ
ｎを有し、送信すべく情報に対応した一つの共振周波数
ｆｍが選択されている。このため、図２に示すように、
地上子７の共振周波数ｆ１〜ｆｍを従来の常時発振周波
数よりも低く設定することにより、情報量を増やした車
両制御装置が得られる。FIG. 3 is a block diagram showing the configuration of the vehicle control device according to the present invention. In the figure, the same reference numerals as those in FIGS. 1 and 2 denote the same components. The vehicle control device according to the present invention includes an on-board device A and a ground device B. The on-board device A is the one described above. The ground device B includes a ground element 7 and a ground receiver 8. The ground element 7 has a plurality of resonance frequencies f1 to f corresponding to transmission information.
One resonant frequency fm having n and corresponding to the information to be transmitted is selected. Therefore, as shown in FIG.
By setting the resonance frequencies f1 to fm of the ground element 7 to be lower than the conventional continuous oscillation frequency, a vehicle control device having an increased amount of information can be obtained.
【００３１】地上受信器８は、車上子３と電磁結合して
加算信号Ｓ１を受信し、周波数ｆｋの第２の発振信号Ｆ
３を解読する。このため、既存の設備を変更する必要の
ない車両制御装置が得られる。The ground receiver 8 is electromagnetically coupled to the car top 3 to receive the addition signal S1, and the second oscillation signal F having a frequency fk.
Decode 3 Therefore, it is possible to obtain a vehicle control device that does not require modification of existing equipment.
【００３２】更に実施例では、地上受信器８は、ループ
コイル８１と、別のフィルタ回路８２とを有している。
８１ループコイルは車上子３と電磁結合して加算信号Ｓ
１を受信し、別のフィルタ回路８２は加算信号Ｓ１から
周波数ｆｋの第２の発振信号Ｆ３を抽出する。このた
め、地上受信器８は第２の発振信号Ｆ３を得た時に車両
検知等を行なうことができる。Further, in the embodiment, the ground receiver 8 has a loop coil 81 and another filter circuit 82.
The 81 loop coil is electromagnetically coupled to the train core 3 to add signal S
1, the other filter circuit 82 extracts the second oscillation signal F3 having the frequency fk from the addition signal S1. Therefore, the ground receiver 8 can perform vehicle detection and the like when it receives the second oscillation signal F3.
【００３３】[0033]
【発明の効果】以上述べたように、本発明によれば、既
存の設備を変更することなく情報量を増やし得る車上装
置及び車両制御装置を提供できる。As described above, according to the present invention, it is possible to provide the on-vehicle device and the vehicle control device that can increase the amount of information without changing the existing equipment.
【図１】本発明に係る車上装置の構成を示すブロック図
である。FIG. 1 is a block diagram showing a configuration of an on-vehicle device according to the present invention.
【図２】伝送情報を周波数に対応させて割り当てた状態
を示す図である。FIG. 2 is a diagram showing a state in which transmission information is assigned corresponding to frequencies.
【図３】本発明に係る車両制御装置の構成を示すブロッ
ク図である。FIG. 3 is a block diagram showing a configuration of a vehicle control device according to the present invention.
１ 増幅回路 ２ 加算回路 ３ 車上子 ４ フィルタ回路 ５ 発振器 ７ 地上子 ｆ１〜ｆｎ 地上子の共振周波数 Ｆ１ 第１の発振信号 ｆ０ 常時発振周波数 Ｆ２ 変周発振信号 Ｆ３ 第２の発振信号 Ｓ１ 加算信号 Ａ 地上装置 Ｂ 車上装置 ８ 車両 1 amplification circuit 2 addition circuit 3 car top 4 filter circuit 5 oscillator 7 ground element f1 to fn resonance frequency of ground element F1 first oscillation signal f0 constant oscillation frequency F2 variable oscillation signal F3 second oscillation signal S1 addition signal A ground device B on-board device 8 vehicle
フロントページの続き (72)発明者 小林 好朗 埼玉県浦和市上木崎１丁目13番８号 日本 信号株式会社与野事業所内Front page continuation (72) Inventor Yoshiro Kobayashi 1-13-8 Kamikizaki, Urawa-shi, Saitama Nihon Signal Co., Ltd.
Claims (4)
ィルタ回路と、発振器とを含む車上装置であって、 前記加算回路、前記車上子及び前記フィルタ回路の直列
回路は、前記増幅回路に対して帰還回路を形成するよう
に接続され、帰還型発振回路を構成しており、 前記車上子は、共振回路を有する地上子と電磁的に結合
するものであり、 前記増幅回路は、前記車上子が前記地上子と結合してい
ない時に第１の発振信号を出力し、前記車上子が前記地
上子と結合している時に変周発振信号を出力するもので
あって、前記変周発振信号は、前記第１の発振信号の周
波数が前記地上子の共振周波数に変周されて得られるも
のであり、 前記発振器は、前記第１の発振信号及び前記変周発振信
号の周波数とは異なる周波数の第２の発振信号を発生す
るものであり、 前記加算回路は、前記増幅回路の後段に接続され、前記
増幅回路から与えられる前記第１の発振信号または前記
変周発振信号と、前記発信器から与えられる前記第２の
発振信号とを加算し、加算信号を前記車上子に供給する
ものであり、 前記フィルタ回路は、前記増幅回路の前段に接続され、
前記加算信号に含まれる前記第２の発振信号の通過を阻
止しそれ以外の信号を通過させる特性を有するものであ
る車上装置。1. An on-vehicle device including an amplifier circuit, an adding circuit, an on-board member, a filter circuit, and an oscillator, wherein the adding circuit, the on-board member, and the series circuit of the filter circuit include: The feedback circuit is connected to the amplifier circuit so as to form a feedback circuit, and the feedback oscillator circuit is formed. The car top is electromagnetically coupled to a ground element having a resonance circuit. The circuit outputs a first oscillation signal when the car top is not coupled to the ground element and outputs a frequency-change oscillation signal when the car top is coupled to the ground element. The frequency-change oscillation signal is obtained by frequency-changing the frequency of the first oscillation signal to the resonance frequency of the ground element, and the oscillator includes the first oscillation signal and the frequency-variation oscillation. Generates a second oscillating signal with a frequency different from the frequency of the signal The adder circuit is connected to a stage subsequent to the amplifier circuit, and the first oscillation signal or the variable frequency oscillation signal given from the amplifier circuit and the second oscillation signal given from the oscillator. Is added, and the addition signal is to be supplied to the car top, the filter circuit is connected to the preceding stage of the amplifier circuit,
An on-vehicle device having a characteristic of blocking passage of the second oscillation signal included in the addition signal and passing other signals.
上子の共振周波数の周波数帯域に含まれる請求項１に記
載の車上装置。2. The on-vehicle device according to claim 1, wherein the frequency of the second oscillation signal is included in a frequency band of a resonance frequency of the ground element.
装置であって、 前記車上装置は、請求項１または２に記載のいずれかの
ものでなり、 前記地上装置は、地上子と、地上受信器とを含んでお
り、 前記地上子は、共振回路を有しており、 前記地上受信器は、前記車上子と電磁結合して前記加算
信号を受信し、前記第２の発振信号を解読するものであ
る車両制御装置。3. A vehicle control device including an on-vehicle device and a ground device, wherein the on-vehicle device is the device according to claim 1 or 2, wherein the ground device is a ground child. And a ground receiver, the ground element has a resonance circuit, the ground receiver is electromagnetically coupled to the car core to receive the addition signal, the second A vehicle control device that decodes an oscillation signal.
ィルタ回路とを有し、前記ループコイルが前記車上子と
電磁結合して前記加算信号を受信し、前記フィルタ回路
が前記加算信号から前記第２の発振信号を抽出するもの
である請求項３に記載の車両制御装置。4. The ground receiver includes a loop coil and a filter circuit, the loop coil electromagnetically coupled to the car top to receive the addition signal, and the filter circuit outputs the addition signal from the addition signal. The vehicle control device according to claim 3, wherein the second oscillation signal is extracted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30664194A JP3402531B2 (en) | 1994-12-09 | 1994-12-09 | On-board device and vehicle control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30664194A JP3402531B2 (en) | 1994-12-09 | 1994-12-09 | On-board device and vehicle control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08168114A true JPH08168114A (en) | 1996-06-25 |
| JP3402531B2 JP3402531B2 (en) | 2003-05-06 |
Family
ID=17959550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30664194A Expired - Lifetime JP3402531B2 (en) | 1994-12-09 | 1994-12-09 | On-board device and vehicle control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3402531B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013116018A (en) * | 2011-11-30 | 2013-06-10 | Toshiba Corp | On-board transmitter |
-
1994
- 1994-12-09 JP JP30664194A patent/JP3402531B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013116018A (en) * | 2011-11-30 | 2013-06-10 | Toshiba Corp | On-board transmitter |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3402531B2 (en) | 2003-05-06 |
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