JP6645648B2 - Level crossing security device and level crossing object detection device - Google Patents

Level crossing security device and level crossing object detection device Download PDF

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JP6645648B2
JP6645648B2 JP2016004870A JP2016004870A JP6645648B2 JP 6645648 B2 JP6645648 B2 JP 6645648B2 JP 2016004870 A JP2016004870 A JP 2016004870A JP 2016004870 A JP2016004870 A JP 2016004870A JP 6645648 B2 JP6645648 B2 JP 6645648B2
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和典 岩村
和典 岩村
夏樹 海川
夏樹 海川
宏顕 若井
宏顕 若井
雅彦 大後
雅彦 大後
大海 武井
大海 武井
卓也 若林
卓也 若林
義憲 播磨
義憲 播磨
良次 安井
良次 安井
和晴 曽川
和晴 曽川
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East Japan Railway Co
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この発明は、鉄道の複線区間や単線区間の踏切に設置される踏切保安装置と、それに組み込まれて踏切道上の物体を検知する踏切物体検知装置に関し、詳しくは、検知した物体が列車なのか踏切障害物なのかの判別まで行うことにより、警報終止点に係るいわゆる煽り対策を強化して踏切警報終止条件を適正化するとともに、踏切障害物検知装置のマスク条件をも適正化することにより、踏切警報制御の質の向上に資する踏切保安装置および踏切物体検知装置に関する。   The present invention relates to a railroad crossing safety device installed at a railroad crossing in a double track section or a single track section, and a railroad crossing object detection device incorporated therein to detect an object on a railroad crossing. By performing even the determination of whether or not an obstacle is an obstacle, strengthening the so-called countermeasures against the end point of the alarm and optimizing the conditions for ending the level crossing alarm, and also optimizing the mask conditions for the level crossing obstacle detection device, The present invention relates to a level crossing security device and a level crossing object detection device that contribute to improving the quality of alarm control.

鉄道の複線区間や単線区間の踏切に設置される踏切保安装置は、警報始動点警報終止点での列車検知を車輪とレールとの短絡すなわち列車の車輪とレールの踏面との接触による電気導通に基づいて行う始動点用踏切制御子や終止点用踏切制御子と、それらによる列車の在線/非在線の検知結果に基づいて踏切警報に係る制御を行う踏切制御回路を備えており、一般に、警報始動点には、短小軌道回路の一種である閉電路形の踏切制御子が用いられるのに対し、警報終止点には、やはり短小軌道回路の一種であるが特性の異なる開電路形の踏切制御子が用いられている(例えば特許文献1〜4参照)。 Railroad crossing safety devices installed at railway crossings in double track sections and single track sections detect trains at the alarm start point and the alarm end point by detecting the short circuit between the wheel and the rail, that is, the electrical continuity due to the contact between the train wheel and the rail tread surface. A crossing controller for a starting point or a crossing controller for an end point performed based on a railroad crossing control circuit that performs control related to a railroad crossing warning based on a detection result of presence / absence of a train on the basis of them. A closed circuit type railroad crossing controller, a kind of short track circuit, is used at the alarm starting point, while an open circuit type railroad crossing, another kind of short track circuit, with different characteristics is used at the alarm end point. A controller is used (for example, see Patent Documents 1 to 4).

また、現行の多くの踏切保安装置では、警報終止のタイミング決定に関わる終止点用踏切制御子の列車検知区間が踏切道に重なっていると、踏切道を通行する踏切通行体たとえば犬の鎖や,スキーのエッジ,トラクターのクローラーなどの金属物で左右のレールが短絡されたときに、終止点用踏切制御子が作動して、列車が踏切道に進入(到達)したと誤認され、警報が不所望に停止するので、それを避ける必要がある。また(図5参照)、列車が踏切道13を通過し終わったことを確実に検知するために、警報終止のタイミング決定に関わる終止点用踏切制御子BDCを列車の進行方向に対して踏切道の前方側(進出側)に設置し、上記の不所望な警報停止を避けるために上記の終止点用踏切制御子BDCの列車検知区間Sbが踏切道13と重ならないように列車検知区間長を調整している。   Also, in many current railroad crossing safety devices, if the train detection section of the railroad crossing controller for the end point related to the determination of the timing of the end of the alarm overlaps the railroad crossing, the railroad crossing passing through the railroad crossing, such as a dog chain or When the left and right rails are short-circuited by metal objects such as ski edges and tractor crawlers, the railroad crossing controller for the end point is activated, and it is mistaken that the train has entered (reached) the railroad crossing, and an alarm is issued. It stops undesirably and needs to be avoided. Also, in order to reliably detect that the train has passed the railroad crossing 13 (see FIG. 5), the end point railroad crossing controller BDC related to the determination of the timing of ending the alarm is set in the railroad crossing direction. In order to avoid the above-mentioned undesired alarm stop, the train detection section length is set so that the train detection section Sb of the end point level crossing controller BDC does not overlap the railroad crossing road 13. I am adjusting.

しかも、それらの踏切保安装置では、列車が終止点用踏切制御子の列車検知区間を通過したら直ちに警報が停止するのでなく、予め設定された警報遅延時素(リレー回路では緩動時素で実現)の時間だけ更に経過した後に警報が停止するようになっている。その理由は、列車検知をより確実に行うためであり、具体的には、列車検知に際して、列車が存在するにも係わらず列車走行時の揺れによる車輪のレールからの浮き上がり等に起因して一時的に“列車が存在しない”と踏切制御子が誤検知する、いわゆる列車検知の“煽り”をマスクするためであり、警報遅延時素は、1〜4秒程度の適宜な時間にされている。   In addition, in these railroad crossing safety devices, the alarm does not stop immediately when the train passes the train detection section of the railroad crossing controller for the end point. The alarm is stopped after a further elapse of the period of time. The reason for this is to perform train detection more reliably.Specifically, at the time of train detection, despite the presence of a train, a temporary rise occurs due to the lifting of wheels from rails due to shaking during train running. This is to mask the so-called "flick" of the train detection, which is a false detection of the railroad crossing controller that "there is no train". The alarm delay time is set to an appropriate time of about 1 to 4 seconds. .

終止点用踏切制御子の設置位置が踏切道の前方側にあることと、警報遅延時素が付加されるために、現行の多くの踏切保安装置では、列車速度が想定速度であっても列車が踏切道を通過し終わってから相当時分(3〜6秒)経過した後でなければ踏切警報が停止しない。列車速度が想定速度より遅ければ、列車検知区間の通過に長時間を要するので、警報停止まで更に長い時間が掛かることになる。
しかしながら、列車が踏切道を通過した後も暫く警報が停止せずに踏切の通過が阻止されるのは、道路通行者の焦燥感・イライラ感を招来することになるので、好ましくないことから、そのような道路通行者の負担を軽減することが社会的に要請される。
Because the location of the railroad crossing controller for the end point is in front of the railroad crossing, and a warning delay element is added, many current railroad crossing safety devices require a train even if the train speed is the expected speed. Only after a considerable time (3 to 6 seconds) has passed since the vehicle has passed the railroad crossing road, the railroad crossing warning will not stop. If the train speed is slower than the assumed speed, it takes a long time to pass through the train detection section, so that it takes longer to stop the alarm.
However, even if the train passes the railroad crossing, the warning is not stopped for a while and the passage of the railroad crossing is blocked, which is unfavorable because it may cause frustration and frustration of road passers. There is a social demand to reduce the burden on such road pedestrians.

そして、かかる要請に応えるべく、列車が踏切道を通過した後は速やかに警報が停止するように踏切保安装置が改良されている(例えば特許文献1,2参照)。具体的には、終止点用踏切制御子の列車検知区間(第2検知点)が踏切道を跨ぐように(即ちその列車検知区間に踏切の幅員が収まるように)終止点用踏切制御子を設置するとともに、警報終止点警報始動点との間の中間検知区間(第1検知点)でも列車が検知できるようにしたうえで、列車検知始動点への列車進入と第1検知点への列車進入と第2検知点への列車進入および列車進出とがその順に行われたか否かを判別する通過完了判定手段や列車追跡手段が踏切制御回路に追加されている。しかも、そのような列車検知結果を利用して、踏切障害物検知装置の障検マスク区間を第1検知点への列車進入と第2検知点からの列車進出とに亘る区間に拡大することにより、簡便に、障検マスク区間が踏切より広くなるので、踏切障害物検知装置のマスク条件が適正化される。 In order to respond to such a request, a railroad crossing safety device has been improved so that the warning stops immediately after the train passes the railroad crossing (for example, see Patent Documents 1 and 2). Specifically, the end point level crossing controller is set so that the train detection section (second detection point) of the end point level crossing controller crosses the level crossing road (that is, the width of the level crossing falls in the train detection section). In addition to the installation, the train can be detected in the intermediate detection section (first detection point) between the alarm end point and the alarm start point, and the train enters the train detection start point and enters the first detection point. Passage completion determining means and train tracking means for determining whether train entry, train entry to the second detection point, and train entry have been performed in that order have been added to the railroad crossing control circuit. Moreover, by utilizing such a train detection result, the obstacle detection mask section of the railroad crossing obstacle detection device is expanded to a section extending from the train entry to the first detection point to the train entry from the second detection point. Since the obstacle detection mask section is simply wider than the railroad crossing, the mask conditions of the railroad crossing obstacle detection device are optimized.

また(例えば特許文献3参照)、踏切道を通る障害物を非接触で検知できる踏切障害物検知装置に、列車の踏切道通過を検知してこれを踏切警報停止条件として踏切制御装置に提供する踏切警報制御支援機能を付加して、踏切障害物検知装置を踏切物体検知装置とすることにより、簡便に、警報終止点に係るいわゆる煽り対策を強化した踏切保安装置も開発されている。この踏切物体検知装置は、検知した物体が列車なのか踏切障害物なのかの判別まで行うことにより踏切警報制御の質の向上に資するものであり、具体的には、警報始動点への列車進入の検知から踏切への列車進入の検知までの間は感応部の検知した物体を障害物と判定し、踏切への列車進入の検知から踏切からの列車進出の検知までの間は感応部の検知した物体を列車と判定することにより、感応部にて検知された物体が障害物であるか列車であるかを弁別するようになっている。   Further, (see, for example, Patent Document 3), a railroad crossing obstacle detection device that can detect an obstacle passing a railroad crossing in a non-contact manner, detects the passage of a train at a railroad crossing, and provides this to a railroad crossing control device as a railroad crossing alarm stop condition. By adding a level crossing alarm control support function and using the level crossing obstacle detecting device as a level crossing object detecting device, a level crossing safety device has been developed in which the so-called tilting measures relating to the alarm end point are simply strengthened. This level crossing object detection device contributes to improving the quality of the level crossing alarm control by determining whether the detected object is a train or a level crossing obstacle.Specifically, the train approaching the alarm starting point The object detected by the sensitive part is judged as an obstacle between the detection of the train and the detection of the train entering the railroad crossing, and the sensing part is detected from the detection of the train entering the railroad crossing to the detection of the train entering the railroad crossing. By determining the detected object as a train, it is possible to discriminate whether the object detected by the sensitive unit is an obstacle or a train.

さらに(例えば特許文献4参照)、そのような踏切障害物検知装置による列車検知と警報終止用の踏切制御子による列車検知とを協働させて踏切警報の停止を的確化する踏切物体検知装置を更に改良することにより、煽り対策を一層強化するとともに踏切障害物検知装置のマスク条件を適正化した踏切保安装置も開発されている。この踏切物体検知装置は、警報始動点への列車進入の検知から踏切への列車進入の検知までの間は非接触式の感応部の検知物体を障害物と判定し、踏切への列車進入から列車進出までの間は感応部の検知物体を列車と判定することで、障害物と列車を弁別するのに加えて、更に、警報始動点への列車進入の検知後に物体検知結果と終止点検知結果との双方が成立したことに応じて踏切への列車進入を検知し、これを障害物検知装置のマスク条件とするとともに、その後に物体検知結果と終止点検知結果が共に不成立に転じたことに応じて踏切からの列車進出を検知するようになっている。   Furthermore, for example (see Patent Document 4), there is provided a railroad crossing object detection device that appropriately stops a railroad crossing alarm by cooperating train detection by such a railroad crossing obstacle detection device and train detection by a railroad crossing controller for ending an alarm. With further improvements, a level crossing safety device has been developed in which the measures against fluttering are further strengthened and the mask conditions of the level crossing obstacle detection device are optimized. This crossing object detection device determines the detection object of the non-contact type sensing part as an obstacle from the detection of the train entry to the alarm starting point to the detection of the train entry to the level crossing, and from the train entry to the level crossing. Until the train departure, in addition to discriminating the train from obstacles by judging the detected object of the sensitive part as a train, in addition to detecting the train entry to the alarm start point, the object detection result and the end point detection The train entry to the railroad crossing was detected when both the results were satisfied, and this was used as the mask condition for the obstacle detection device.After that, both the object detection results and the end point detection results turned to failure. The system detects a train advance from a railroad crossing in accordance with.

しかも、そのような警報始動点には、ATS車上装置からの常時発振信号を受けて動作する踏切バックアップ装置が並設されることもあり(例えば特許文献4参照)、その場合、列車の先頭車の床下に取り付けられたATS車上装置の車上子から踏切バックアップ装置の地上子へ発振信号が届くことによっても、警報終止点への列車到来が検知される。
この例の踏切バックアップ装置の併用では(特許文献4参照)、踏切バックアップ装置が終止点用踏切制御子の列車検知区間の外に設置されている。
Moreover, at such an alarm starting point, a railroad crossing backup device that operates in response to a continuous oscillation signal from an ATS on-board device may be provided in parallel (for example, see Patent Document 4). The arrival of the train at the alarm end point is also detected by the arrival of the oscillation signal from the upper child of the ATS on-board device mounted under the floor of the vehicle to the upper child of the railroad crossing backup device.
In the combined use of the railroad crossing backup device of this example (see Patent Document 4), the railroad crossing backup device is installed outside the train detection section of the terminal crossing controller.

特開2014−054866号公報JP 2014-054866 A 特開2014−125205号公報JP 2014-125205 A 特開2014−205444号公報JP 2014-205444A 特開2015−140130号公報JP-A-2015-140130

このような従来の踏切保安装置や踏切物体検知装置では、非接触式の障害物検知装置を利用して接触式の終止点用踏切制御子の煽り対策を強化するとともに踏切警報終止条件を適正化するために、終止点用踏切制御子の列車検知区間を前後の位置で切り替えるとともに後方位置の列車検知区間が踏切道を跨ぐようにしたうえで列車追跡を行ったり(特許文献1,2参照)、踏切への列車進入の判定条件を厳しくして障害物検知装置を障害物検知にとどまらず列車検知にまで用いるようになっている(特許文献3,4参照)。   In such conventional level crossing safety devices and level crossing object detection devices, non-contact type obstacle detection devices are used to strengthen measures to lift the contact type level crossing controller and to optimize the level crossing alarm termination conditions. In order to do so, the train detection section of the railroad crossing controller for the end point is switched between the front and rear positions, and the train detection section at the rear position crosses the railroad crossing and the train is tracked (see Patent Documents 1 and 2). However, the conditions for determining the approach of a train to a railroad crossing are strict, and the obstacle detection device is used not only for obstacle detection but also for train detection (see Patent Documents 3 and 4).

もっとも、煽り対策が強化されたとはいえ、前者は(特許文献1,2参照)、踏切警報終止条件の適正化を主眼としており、接触式の終止点用踏切制御子が重用されているので、激しい煽りにまで対処しきれるものではない。
これに対し、後者は(特許文献3,4参照)、非接触式の障害物検知装置を障害物の検知にとどまらず列車の検知にも用いるため、煽りに対する対処能力が高い。
しかしながら、赤外光やレーザー光を用いる既存の障害物検知装置には、いわゆる「くぐり抜け」の起こりうるものが有り、そのような障害物検知装置をそのまま上述した踏切物体検知装置(特許文献3,4参照)に用いる訳にはいかない。
However, although the countermeasures against swaying have been strengthened, the former (see Patent Documents 1 and 2) focuses on optimizing the end condition of the level crossing alarm, and the contact type crossing controller for the end point is heavily used. It can't cope with intense rumors.
On the other hand, the latter (see Patent Documents 3 and 4) uses a non-contact type obstacle detecting device not only for detecting an obstacle but also for detecting a train, and thus has a high ability to cope with a sway.
However, there is an existing obstacle detection device using infrared light or laser light that may cause a so-called “pass through”, and such an obstacle detection device is used as it is in the above-described level crossing object detection device (Patent Document 3, 4) cannot be used.

すなわち、先ず、くぐり抜けを詳述すると、既存の障害物検知装置で多用されている線検知式や面検知方式では、障害物検知の検知線や検知面の標準高さが踏切道面から745mmであるのに対し、鉄道の車両の台枠の上面(床面)の高さは、950mmや,1000mm,1100mmなどと、まちまちであるうえ、検知線や検知面の標準高さより高い。このため、一部の車両では、検知線や検知面をなす検知光が検知対象の台枠の下をくぐり抜けるという事象が、発生することがある。とはいえ、台枠の下面は上面より低いことや、台枠の下には台車や車輪があること、貨物車両では台枠の中央部分が下がっていること、旅客車両では付随車であっても床下に様々な機器がぶら下がっていることから、検知光が台枠の下を常にくぐり抜ける訳でなく、検知光が台枠の下をくぐり抜ける隙間(前後方向・車両走行方向の間隔・幅)は、5000mm以下である。   That is, first, when passing through is described in detail, in the line detection method and the surface detection method that are frequently used in the existing obstacle detection device, the standard height of the detection line and the detection surface of the obstacle detection is 745 mm from the level crossing road surface. On the other hand, the height of the upper surface (floor surface) of the underframe of a railway vehicle varies from 950 mm, 1000 mm, 1100 mm, and the like, and is higher than the standard height of the detection line and the detection surface. For this reason, in some vehicles, an event may occur in which detection light that forms a detection line or a detection surface passes under a frame to be detected. However, the underside of the underframe is lower than the top surface, there are trucks and wheels under the underframe, the center part of the underframe is down for freight vehicles, and it is an accompanying vehicle for passenger vehicles. Also, since various devices are hanging under the floor, the detection light does not always pass under the underframe, but the gap where the detection light passes under the underframe (interval, width in the front-rear direction, vehicle running direction) 5,000 mm or less.

次に、くぐり抜けによる踏切物体検知装置の不都合を詳述すると、従来の踏切物体検知装置では、上述したように、踏切への列車進入を検知した後に物体検知結果と終止点検知結果が共に不成立に転じたことに応じて踏切からの列車進出を検知するようになっていることから、列車の踏切通過中にくぐり抜けが発生すると、一時的とはいえ検知光が検知されて物体検知結果が不成立に転じるため、列車が踏切道を進出し終えたと誤判定されるので、踏切警報を適時よりも早く停止させてしまうという不所望な踏切制御が行われてしまう。   Next, the disadvantage of the crossing object detection device due to passing through will be described in detail.In the conventional crossing object detection device, as described above, both the object detection result and the end point detection result become unsuccessful after detecting the train entering the railroad crossing. The system detects the train going out of the railroad crossing in response to turning, so if the train passes through the railroad crossing, the detection light will be detected, albeit temporarily, and the object detection result will be unsuccessful. Since the train turns, it is erroneously determined that the train has advanced on the railroad crossing road, so that an undesirable railroad crossing control of stopping the railroad crossing warning earlier than appropriate is performed.

このような不具合を解消する直截的な解決法は、くぐり抜けが発生しないように障害物検知装置を改良したり、くぐり抜けが発生しないような障害物検知装置を新設することである。例えば、検知光などの非接触検知媒体としてレーザー光を用いるレーザー式の障害物検知装置であれば、障害物検知装置の投光器と受光器とのうち何れか一方を高さ800mmといった低めに設置するとともに何れか他方を高さ1000mmといった高めに設置して、レーザー光が車両の台枠の床に斜めに当たるように配光する、といった対策を講じることにより、くぐり抜けを回避することができる。   A straightforward solution to solving such a problem is to improve the obstacle detection device so that no passing through occurs, or to newly install an obstacle detecting device that does not cause passing through. For example, in the case of a laser-based obstacle detection device using laser light as a non-contact detection medium such as detection light, one of the light emitter and the light receiver of the obstacle detection device is installed at a height as low as 800 mm. In addition, it is possible to avoid passing through by setting one of them at a height of 1000 mm and distributing the laser light obliquely to the floor of the underframe of the vehicle.

もっとも、このような斜め投光の配光法を採用した場合でも、既存の障害物検知装置の投受光器の再配置や再調整は必要であり、複線の場合、一組の投受光器を上り線用と下り線用とに共用することができないため、二組の投受光器が必要であり、設備費が嵩む。
これに対し、終止点用踏切制御子の列車検知区間を踏切道に重ねて終止点用踏切制御子の列車検知区間に踏切道を跨がせる手法(特許文献1,2参照)では「くぐり抜け」が問題にならないので、その手法と、障害物検知装置を列車検知にも用いる手法(特許文献3,4参照)とを、併用するのが良かろうと思われる。
However, even if such a diagonal light distribution method is adopted, it is necessary to relocate and re-adjust the light emitter / receiver of the existing obstacle detection device. Since it cannot be shared for the up line and the down line, two sets of light emitting and receiving devices are required, and the equipment cost increases.
On the other hand, in the technique (see Patent Literatures 1 and 2) in which the train detection section of the end point crossing controller is overlapped with the crossing road and the train detection section of the end point crossing controller is crossed over the train detection section (see Patent Documents 1 and 2). Is not a problem, so it seems that it would be better to use both the technique and the technique of using the obstacle detection device for train detection (see Patent Documents 3 and 4).

しかしながら、両手法を単純に組み合わせただけでは、くぐり抜けが発生したときに折悪しく煽りまで発生すると、列車検知結果ばかりか終止点検知結果まで不成立に転じて、やはり踏切警報の停止を招くため、不所望な踏切警報の停止の発生頻度がかなり下がるとはいえ、不所望な踏切警報の停止の発生を十分に抑えることができる訳ではない。
そこで、両手法を組み合わせるに際して更なる工夫を加味することにより、くぐり抜けが発生しても踏切警報が不所望には停止しない踏切保安装置および踏切物体検知装置を簡便に実現することが技術的な課題となる。
However, a simple combination of the two methods would cause unsatisfactory not only the train detection result but also the end point detection result when passing through, which would lead to the failure of the railroad crossing warning. Although the frequency of occurrence of a desired level crossing alarm stop is considerably reduced, the occurrence of an undesired level crossing alarm stop cannot be sufficiently suppressed.
Therefore, it is a technical problem to easily realize a railroad crossing safety device and a railroad crossing object detection device in which a crossing warning does not stop undesirably even if a passing through occurs, by taking further measures into consideration when combining the two methods. Becomes

本発明の踏切保安装置は(解決手段1)、このような課題を解決するために創案されたものであり、
鉄道の線路を横切る踏切から列車検知区間が外れる状態で前記線路に設定された警報始動点に係る列車検知を行う始動点用踏切制御子と、前記踏切の踏切道の幅員を列車検知区間に収める状態で前記線路に設定された警報終止点に係る列車検知を行う終止点用踏切制御子と、前記踏切の踏切道上における物体の有無を非接触で検知する感応部と、前記始動点用踏切制御子の始動点検知結果に基づいて前記警報始動点への列車進入を検知するとともに前記終止点用踏切制御子の終止点検知結果と前記感応部の物体検知結果とに基づいて前記踏切に係る列車進入および列車進出を検知する物体検知論理判定部とを備えた踏切保安装置であって、
前記物体検知論理判定部が、前記警報始動点への列車進入の検知から前記踏切への列車進入の検知までの間は前記感応部の検知した物体を障害物と判定し、前記踏切への列車進入の検知から前記踏切からの列車進出の検知までの間は前記感応部の検知した物体を列車と判定することにより、前記感応部にて検知された物体が障害物であるか列車であるかを弁別するようになっており、而も、前記警報始動点への列車進入の検知後に前記物体検知結果と前記終止点検知結果との双方が成立したことに応じて前記踏切への列車進入を検知し、前記踏切への列車進入の検知後に前記物体検知結果と前記終止点検知結果との双方が不成立に転じたことに応じて前記踏切からの列車進出を検知するようになっており、更に、前記物体検知結果が成立から不成立に転ずるときの状態遷移を列車進出確認時素の分だけ遅延させるようになっており、前記列車進出確認時素が、走行列車の台枠の下を前記感応部の検知媒体がくぐり抜ける隙間の最大値を潜り最大幅とし、走行列車の車輪のレールからの浮き上がりに起因して前記終止点用踏切制御子の検知結果が一時的に成立から不成立に転ずることがある列車走行速度の最小値を煽り最低速度として、前記潜り最大幅を前記煽り最低速度で除した両立確定時間以上になっている、ことを特徴とする。
The railroad crossing safety device of the present invention (Solution 1) is designed to solve such a problem.
A starting point railroad crossing controller for detecting a train related to an alarm starting point set on the track in a state where the train detecting section deviates from a railroad crossing crossing a railway track, and a width of a crossing road of the railroad crossing is included in the train detecting section. An end-point level crossing controller that detects a train related to an alarm end point set on the track in a state, a sensing unit that detects the presence or absence of an object on a level crossing of the level crossing in a non-contact manner, and the start-point level crossing control A train related to the level crossing is detected based on a result of detection of a starting point of a child and a train approaching to the alarm starting point, and based on an end point detection result of the end point level crossing controller and an object detection result of the sensing unit. A level crossing safety device including an object detection logic determination unit that detects entry and train advancement,
The object detection logic determination unit determines an object detected by the sensing unit as an obstacle during a period from the detection of the train entry to the alarm start point to the detection of the train entry to the railroad crossing, and the train to the railroad crossing. From the detection of the entry to the detection of the train entry from the level crossing, the object detected by the sensing unit is determined to be a train to determine whether the object detected by the sensing unit is an obstacle or a train. Also, after detecting the train entry to the alarm start point, the train entry to the railroad crossing in response to both the object detection result and the end point detection result are established Detecting, after detecting the train entry to the railroad crossing, to detect the train advance from the railroad crossing in response to both the object detection result and the end point detection result turned to failure, furthermore Since the object detection result is established The state transition at the time of turning to the establishment is to be delayed by the amount of the train advancement confirmation element, and the train advancement confirmation element is in the gap where the detection medium of the sensitive part passes under the underframe of the traveling train. The maximum value is the maximum dive width, and the minimum value of the train traveling speed at which the detection result of the end point level crossing controller may temporarily change from established to unsatisfied due to the lifting of the traveling train wheels from the rails is defined as It is characterized in that the minimum lifting speed is equal to or longer than a compatibility determination time obtained by dividing the maximum dive width by the minimum lifting speed.

また、本発明の踏切物体検知装置は(解決手段2)、上記解決手段1の踏切保安装置から物体検知論理判定部を抽出して装置にしたものであり、
鉄道の線路を横切る踏切から列車検知区間が外れる状態で前記線路に設定された警報始動点に係る列車検知を行う始動点用踏切制御子から始動点検知結果を取得する手段と、前記踏切の踏切道の幅員を列車検知区間に収める状態で前記線路に設定された警報終止点に係る列車検知を行う終止点用踏切制御子から終止点検知結果を取得する手段と、前記踏切の踏切道上における物体の有無を非接触で検知する感応部から物体検知結果を取得する手段と、前記始動点検知結果と前記終止点検知結果と前記物体検知結果とに基づいて踏切警報の開始および停止を制御する手段とを備えた踏切物体検知装置であって、
前記警報始動点への列車進入の検知から前記踏切への列車進入の検知までの間は前記感応部の検知した物体を障害物と判定し、前記踏切への列車進入の検知から前記踏切からの列車進出の検知までの間は前記感応部の検知した物体を列車と判定することにより、前記感応部にて検知された物体が障害物であるか列車であるかを弁別するようになっており、而も、前記警報始動点への列車進入の検知後に前記物体検知結果と前記終止点検知結果との双方が成立したことに応じて前記踏切への列車進入を検知し、前記踏切への列車進入の検知後に前記物体検知結果と前記終止点検知結果との双方が不成立に転じたことに応じて前記踏切からの列車進出を検知するようになっており、更に、前記物体検知結果が成立から不成立に転ずるときの状態遷移を列車進出確認時素の分だけ遅延させるようになっており、前記列車進出確認時素が、走行列車の台枠の下を前記感応部の検知媒体がくぐり抜ける隙間の最大値を潜り最大幅とし、走行列車の車輪のレールからの浮き上がりに起因して前記終止点用踏切制御子の検知結果が一時的に成立から不成立に転ずることがある列車走行速度の最小値を煽り最低速度として、前記潜り最大幅を前記煽り最低速度で除した両立確定時間以上になっている、ことを特徴とする。
Also, the object detection device for level crossing of the present invention (solution 2) is a device in which an object detection logic determination unit is extracted from the level crossing security device of solution 1 described above,
Means for obtaining a starting point detection result from a starting point level crossing controller for performing a train detection related to an alarm starting point set on the track in a state in which the train detection section deviates from a level crossing crossing a railway track, and a level crossing of the level crossing Means for acquiring an end point detection result from an end point crossing controller for performing a train detection relating to an alarm end point set on the track while keeping the width of the road in a train detection section, and an object on a crossing road of the crossing. Means for acquiring an object detection result from a sensing unit that detects the presence or absence of non-contact, and means for controlling start and stop of a level crossing alarm based on the start point detection result, the end point detection result, and the object detection result. A level crossing object detection device comprising:
From the detection of the train entry to the alarm starting point to the detection of the train entry to the railroad crossing, the object detected by the sensing unit is determined to be an obstacle, and from the detection of the train entry to the railroad crossing, Until the detection of the train advance, the object detected by the sensitive unit is determined to be a train, so that the object detected by the sensitive unit is discriminated as an obstacle or a train. Also, after detecting the train entry to the alarm start point, the train entry to the railroad crossing is detected in response to both the object detection result and the end point detection result being established, and the train to the railroad crossing is detected. After the detection of the entry, both the object detection result and the end point detection result are turned to non-establishment, so that it detects the train advance from the railroad crossing, and further, from the establishment of the object detection result State transition when turning into failure The train advancement confirmation element is delayed by the amount of the train advancement confirmation element, and the train advancement confirmation element is set to the maximum width of the gap through which the sensing medium of the sensing part passes under the underframe of the traveling train and the maximum width. The minimum value of the train traveling speed at which the detection result of the end point level crossing controller may temporarily change from being established to not being established due to the lifting of the wheels of the traveling train from the rails is referred to as the lowest speed. It is equal to or longer than a compatibility determination time obtained by dividing a maximum width by the above-mentioned minimum speed.

さらに、本発明の踏切保安装置は(解決手段3)、踏切バックアップ装置の利用についても改良を加えたものであり、
上記解決手段1の踏切保安装置であって、前記終止点用踏切制御子の列車検知区間に収まる状態で前記線路に設置されたATS利用の踏切バックアップ装置を備えており、前記物体検知論理判定部が、前記踏切への列車進入の検知に際して、前記警報始動点への列車進入の検知後に前記物体検知結果と前記終止点検知結果と前記踏切バックアップ装置の列車検知結果とが総て成立したことに応じて前記踏切への列車進入を検知するようになっていることを特徴とする。
Further, the railroad crossing safety device of the present invention (solution 3) is also improved in the use of a railroad crossing backup device.
The level crossing security device according to the first aspect, further comprising an ATS-based level crossing backup device installed on the track in a state where the level crossing controller for the end point falls within a train detection section, and the object detection logic determination unit includes: However, upon detection of the train entry to the railroad crossing, the object detection result, the end point detection result, and the train detection result of the railroad crossing backup device are all established after the detection of the train entry to the alarm start point. It is characterized in that a train entry to the railroad crossing is detected accordingly.

また、本発明の踏切物体検知装置は(解決手段4)、上記解決手段3の踏切保安装置から該当部分を抽出したものであり、
上記解決手段2の踏切物体検知装置であって、前記終止点用踏切制御子の列車検知区間に収まる状態で前記線路に設置されたATS利用の踏切バックアップ装置の列車検知結果であるバックアップ検知結果を取得する手段を具備しており、前記踏切への列車進入の検知に際して、前記警報始動点への列車進入の検知後に前記物体検知結果と前記終止点検知結果と前記バックアップ検知結果とが総て成立したことに応じて前記踏切への列車進入を検知するようになっていることを特徴とする。
The object detection device for level crossing of the present invention (solution 4) is obtained by extracting a relevant portion from the level crossing security device of solution 3 above,
In the level crossing object detection device according to the second aspect, a backup detection result, which is a train detection result of an ATS-based level crossing backup device installed on the track in a state where it is included in the train detection section of the end point level crossing controller, Means for acquiring a train entry at the railroad crossing, and all of the object detection result, the end point detection result, and the backup detection result are established after the detection of the train entry at the alarm start point. In this case, a train entry to the railroad crossing is detected in response to this.

このような本発明の踏切保安装置および踏切物体検知装置にあっては(解決手段1,2)、終止点用踏切制御子の列車検知区間に踏切道を跨がせる手法と障害物検知装置を列車検知にも用いる手法とを併用したうえで、踏切からの列車進出の検知条件を物体検知結果と終止点検知結果との双方不成立にし、更に、物体検知結果の成立から不成立への状態遷移を列車進出確認時素の分だけ遅延させるとともに、その列車進出確認時素を、くぐり抜け要因の隙間最大値(潜り最大幅)と煽り発生限界の列車走行速度最小値(煽り最低速度)とで決まる両立確定時間以上の時間にしたことにより、列車が煽り最低速度以上で走行するときにはくぐり抜けが発生せず、列車が煽り最低速度以下で走行するときにはくぐり抜けが発生しても煽りが発生しない。
そのため、何れの速度であれ踏切から列車が進出する前に物体検知結果と終止点検知結果との双方が不成立になることは無いので、踏切からの列車進出が的確に検知される。
したがって、この発明によれば、くぐり抜けが発生しても或いは煽りが発生しても踏切警報が不所望には停止しない踏切保安装置および踏切物体検知装置を簡便に実現することができる。
In such a level crossing security device and a level crossing object detection device of the present invention (solution means 1 and 2), a method and an obstacle detection device for crossing a level crossing in a train detection section of a level crossing controller for an end point are described. In addition to the method used for train detection, the detection condition of the train advance from the railroad crossing is set to both the object detection result and the end point detection result that are not satisfied. While delaying the train entry confirmation element, the train entry confirmation element is also determined by the maximum gap value (maximum dive width) of the passing factor and the minimum train running speed (minimum cruising speed) at the limit of swaying. By setting the time longer than the fixed time, the train does not pass through when the train runs above the minimum speed, and when the train runs below the minimum speed, it raises even if it passes. There.
Therefore, both the object detection result and the end point detection result do not become unsatisfied before the train advances from the railroad crossing at any speed, and the train advancement from the railroad crossing is accurately detected.
Therefore, according to the present invention, it is possible to easily realize a level crossing security device and a level crossing object detection device in which a level crossing alarm does not stop undesirably even if a passing-through or a fluttering occurs.

また、本発明の踏切保安装置および踏切物体検知装置にあっては(解決手段3,4)、踏切バックアップ装置を終止点用踏切制御子の列車検知区間に収まるようにすることで簡便に設置環境を整えることができる。そして、そのような踏切バックアップ装置の列車検知結果を踏切への列車進入の検知条件に加えるとともに、その際に、その列車検知結果を他の物体検知結果および終止点検知結果と同じくAND条件(論理積)だけで用いるようにもしたことにより、判定内容が厳格化されるのに論理は単純化・明瞭化される。   In the level crossing security device and the level crossing object detection device of the present invention (solution means 3 and 4), the installation environment can be easily set by setting the level crossing backup device in the train detection section of the level crossing controller for the end point. Can be arranged. Then, the train detection result of such a railroad crossing backup device is added to the detection condition of the train entering the railroad crossing, and at that time, the train detection result is added to the AND condition (logical logic) in the same manner as the other object detection result and the end point detection result. By using only the product, the logic is simplified and clarified even though the judgment contents are strict.

本発明の実施例1について、踏切保安装置および踏切物体検知装置の構造を示し、(a)が踏切保安装置のうち複線区間の下り線における踏切制御子等の配置を示す記号図、(b)がリレーで構成された踏切物体検知装置の回路図である。(A) is a symbolic diagram showing an arrangement of a level crossing controller and the like on a down line of a double track section in a level crossing security device according to a first embodiment of the present invention; 1 is a circuit diagram of a railroad crossing object detection device constituted by a relay. 本発明の実施例1について、踏切保安装置および踏切物体検知装置の動作状態を示し、(a)が複線区間の下り線を走行する列車の進行状態を示す記号図、(b)がリレー信号のタイムチャートである。In the first embodiment of the present invention, an operation state of a railroad crossing safety device and a railroad crossing object detection device is shown, (a) is a symbol diagram showing a traveling state of a train traveling on a down track in a double track section, and (b) is a relay signal of a relay signal. It is a time chart. (a),(b)何れもタイムチャートの一部の拡大図であるが、(a)は列車が煽り発生限界の列車走行速度最小値(煽り最低速度)より高速で走行して「煽り」が発生したときのものであり、(b)は列車が列車走行速度最小値(煽り最低速度)より低速で走行して「くぐり抜け」が発生したときのものである。(A) and (b) are enlarged views of a part of the time chart, but (a) shows that the train travels at a speed higher than the minimum train running speed (minimum minimum speed) at the limit of the generation of the "fanning". (B) is when the train runs at a speed lower than the minimum train running speed (minimum fanning speed) and a “pass through” occurs. 本発明の実施例2について、踏切保安装置のうち複線区間の下り線における踏切制御子等の配置を示す記号図である。FIG. 9 is a symbol diagram showing an arrangement of a level crossing controller and the like on a down line in a double track section in the level crossing security device according to the second embodiment of the present invention. 従来の複線区間の下り線における踏切制御子の配置を示す記号図である。It is a symbolic diagram showing arrangement of a railroad crossing control element in the down line of the conventional double track section.

このような本発明の踏切保安装置および踏切物体検知装置について、これを実施するための具体的な形態を、以下の実施例1〜3により説明する。
図1〜3に示した実施例1は、上述した解決手段1〜4(出願当初の請求項1〜4)を具現化したものであり、図示を割愛した実施例2は、その拡張例であり、図4に示した実施例3は、変形例である。
なお、それらの図示に際しては、簡明化等のため、筐体や機械部などは図示を割愛し、発明の説明に必要なものや関連するものを中心に記号図や回路図を多用した。
Specific embodiments for implementing such a level crossing security device and a level crossing object detection device of the present invention will be described with reference to Examples 1 to 3 below.
The first embodiment shown in FIGS. 1 to 3 embodies the above-described solutions 1 to 4 (claims 1 to 4 at the time of filing the application), and the second embodiment, which is not shown, is an extended example thereof. The third embodiment shown in FIG. 4 is a modification.
In the drawings, for simplicity and the like, illustrations of a housing and a mechanical portion are omitted, and a symbol diagram and a circuit diagram are frequently used mainly for those necessary and related to the description of the invention.

本発明の踏切保安装置および踏切物体検知装置の実施例1について、その具体的な構成を、図面を引用して説明する。図1は、(a)が複線区間の線路10のうち下り線11に係る踏切制御子(ADC,BDC)等の配置を示す記号図であり、(b)が下り踏切物体検知装置20のリレー回路図である。   Embodiment 1 A specific configuration of a railroad crossing safety device and a railroad crossing object detection device according to a first embodiment of the present invention will be described with reference to the drawings. FIG. 1A is a symbol diagram showing an arrangement of a level crossing controller (ADC, BDC) and the like related to a down line 11 of a line 10 in a double track section, and FIG. 1B is a relay diagram of a down level crossing object detection device 20. It is a circuit diagram.

ここで例示する下り踏切物体検知装置20は、複線区間の踏切13に係る踏切保安装置に組み込まれており、踏切制御装置に加えて踏切障害物検知装置が設けられている場合はそれらを部分改造した形で分散設置されたり、既存装置の改造は信号提供程度にとどめて別ユニットを追加する形で設置されたり、既存の踏切障害物検知装置を取り外して或いは新規な踏切障害物検知装置の追加に代えて本装置20を追加する形で設置されたり、種々の態様で設置しうるので、ここでは、踏切保安装置の各部材の配置状態と、リレーを用いて具体化された下り踏切物体検知装置20の回路構成とを説明する。   The down-level crossing object detection device 20 illustrated here is incorporated in the level crossing safety device related to the level crossing 13 in the double track section, and when a level crossing obstacle detection device is provided in addition to the level crossing control device, those are partially modified. The existing equipment is modified only to provide a signal, and another unit is added.The existing obstacle detection device is removed, or a new obstacle detection device is added. Since the present apparatus 20 can be installed in place of the above, or can be installed in various modes, here, the arrangement state of each member of the level crossing safety device and the detection of the down level crossing object embodied using a relay are described. The circuit configuration of the device 20 will be described.

下り踏切物体検知装置20の設置先は(図1(a)参照)、複線区間の線路10のうち下りの線路(下り線)11であり、それと並走する上り線(上りの線路)12には本例では同様な別の踏切物体検知装置が設置されているものとする。踏切13の踏切道や警報灯14は下り列車と上り列車とに共用されるが、下り線11や,下り始動点ADC(警報始動点),下り終止点BDC(警報終止点),下り踏切バックアップ装置BBu,下り感応部15+16は、上り列車には使用されず、下り列車だけに使用される。なお、それらの部材の下り列車専用化は絶対的なものでなく、単線の場合や複線でも多少改造した場合など、共用できることがある(例えば一組の感応部15+16を下りの線路11と上りの線路12とに共用させても良い)。 The installation location of the down-level crossing object detection device 20 (see FIG. 1A) is a down track (down track) 11 of the multi-track section 10, and an up track (up track) 12 running parallel to the down track. In this example, it is assumed that another similar level crossing object detection device is installed in this example. The crossing road of the level crossing 13 and the warning light 14 are shared by the down train and the up train, but the down line 11, the down start point ADC ( alarm start point ), the down end point BDC (alarm end point), and the down crossing backup The device BBu and the down responsive units 15 + 16 are not used for up trains, but are used only for down trains. It should be noted that the exclusive use of these members for down trains is not absolute, and they can be shared, for example, in the case of a single track or in the case of a slight modification of a double track (for example, one set of the sensing units 15 + 16 is connected to the down track 11 and the up track). It may be shared with the track 12).

このような下り線11については、踏切13の起点側で手前位置の下り始動点ADCに、閉電路形の踏切制御子が接続されるのに加え、下り始動点ADCと踏切13との中間位置に下り終止点BDCが設定されて、そこに開電路形の踏切制御子が接続されるとともに、下り踏切バックアップ装置BBuが設置される。その際、下り始動点ADCの列車検知区間Saが踏切道に掛かることなく踏切道から外れるよう、その踏切制御子が踏切道から十分に離れた所に打ち込まれる。具体的には、下り始動点ADCは、踏切警報を発してから20〜600m程度の編成長の列車が踏切13に到達するまでの警報時間(第1種、第3種の踏切の別、跨線数などにより異なるが、概ね25秒〜40秒)を確保するために、列車の最高速度にもよるが踏切13から650〜850m程の遠くに設定される。   With respect to such a down line 11, in addition to the connection of a closed-circuit-type railroad crossing controller to the downhill starting point ADC located at the near side on the starting side of the railroad crossing 13, an intermediate position between the downhill starting point ADC and the railroad crossing 13 Is set to a down end point BDC, an open circuit type railroad crossing controller is connected thereto, and a downhill crossing backup device BBu is installed. At this time, the railroad crossing controller is driven into a place sufficiently distant from the railroad crossing so that the train detection section Sa of the down starting point ADC does not cross the railroad crossing without going over the railroad crossing. Specifically, the descent starting point ADC is a warning time (from the generation of the level crossing alarm to the time when the train of knitting growth of about 20 to 600 m reaches the level crossing 13 (type 1 and type 3 level crossing, crossing, In order to secure about 25 seconds to 40 seconds (depending on the number of lines, etc.), it is set at a distance of about 650 to 850 m from the railroad crossing 13 depending on the maximum speed of the train.

これに対し、下り終止点BDCは、その列車検知区間Sbが踏切13の踏切道を跨ぐよう、その踏切制御子が踏切道の近くに打ち込まれる。具体的には、下り終止点BDCは、列車検知区間Sbが踏切道に掛かる所、例えば踏切道から数mほど離れた所に、列車検知区間Sbの両端が踏切道の両側に分かれる状態で、設定される。
また、下り踏切バックアップ装置BBuの地上子も、踏切道から数mほど離れた所に設置される。この設置状態は、下り踏切バックアップ装置BBuの地上子とATS装置の車上子とが正対したときに、列車の最先頭が踏切道上に差し掛かり、下り踏切物体検知装置20が列車の最先頭を物体と検知する位置関係を満たすとともに、下り踏切バックアップ装置BBuが下り終止点BDCの列車検知区間Sbに収まるという位置関係も満たしている。なお、図示の例では、下り終止点BDCが下り踏切バックアップ装置BBuと踏切13との間に位置しているが、下り踏切バックアップ装置BBuが下り終止点BDCと踏切13との間に位置していても良い。
On the other hand, at the descent end point BDC, the level crossing controller is driven near the level crossing so that the train detection section Sb crosses the level crossing of the level crossing 13. Specifically, the end point BDC of the descent is in a state where both ends of the train detection section Sb are divided on both sides of the crossing road at a place where the train detection section Sb hangs on the crossing road, for example, at a place several meters away from the crossing road, Is set.
In addition, the ground rail of the down-grade crossing backup device BBu is also installed at a place several meters away from the crossing. In this installation state, when the ground child of the down-grade railroad crossing backup device BBu and the vehicle upper child of the ATS device face each other, the top of the train approaches the railroad crossing road, and the descent level crossing object detection device 20 moves to the top of the train. In addition to satisfying the positional relationship of detecting with the object, the positional relationship that the downbound level crossing backup device BBu falls within the train detection section Sb of the downbound end point BDC is also satisfied. In the illustrated example, the descending end point BDC is located between the descending level crossing backup device BBu and the level crossing 13, but the descending level crossing backup device BBu is located between the descending end point BDC and the level crossing 13. May be.

また、下り感応部15+16は、下り線11に対しても踏切13の踏切道に対しても両側に分かれて設置された投光器15と受光器16とからなるものを図示したが、赤外光・レーザ光での送受光に係る遮断の有無や、レーダ方式で測定した距離の遠近などに応じて、踏切道を通る人や車などの障害物と列車とを非接触で検知できるものであれば公知のものでも改良品でも良く、列車が少しでも踏切道に掛かっていれば列車検知結果が成立するよう線路と踏切道に対し平面視で傾斜しており、踏切障害物検知装置が既に設けられている場合、大抵は、その感応部を流用することが可能である。警報始動点用や警報終止点用の踏切制御子も、ATS利用の下り踏切バックアップ装置BBuも、既述した既存品や公知品で良いが、下り終止点BDCと下り踏切バックアップ装置BBuの位置は、列車が踏切道を通過し終わってから素早く警報停止するという観点からすれば、踏切道の手前になっているのがベターなので、本例ではそのようになっている。   In addition, although the down responsive part 15 + 16 is illustrated as including the light emitter 15 and the light receiver 16 separately installed on both sides of the down line 11 and the level crossing of the railroad crossing 13, the infrared light As long as it can detect the train and obstacles such as people and cars passing through the railroad crossing in a non-contact manner according to the presence or absence of interruption related to transmission and reception of laser light and the distance of the distance measured by the radar method, etc. Known or improved products may be used.If the train is on a railroad crossing even a little, it is inclined in plan view with respect to the track and the railroad crossing so that the train detection result is established, and a railroad crossing obstacle detection device is already provided In most cases, it is possible to divert the sensitive part. The railroad crossing controller for the alarm starting point and the alarm end point, the downgrade crossing backup device BBu using ATS, and the existing products and known products described above may be used, but the positions of the downbound end point BDC and the downgrade crossing backup device BBu are as follows. From the viewpoint of quickly stopping the alarm after the train has passed through the railroad crossing, this is the case in the present example because it is better in front of the railroad crossing.

下り踏切物体検知装置20は(図1(b)参照)、それらの地上設備から検知結果を取得するために下り始動点検知結果取得部21と下り終止点検知結果取得部22と下りバックアップ検知結果取得部23と下り物体検知結果取得部24とを具備するとともに、それらの検知結果に基づいて下り始動点ADC(警報始動点)への下り列車の進入とその後の踏切13への下り列車の進入とその後の踏切13からの下り列車の進出とを検知する下り物体検知論理判定部25〜30と具備しており、この実施例では、何れもリレー回路で具現化されている。   The descending level crossing object detection device 20 (see FIG. 1B) obtains the detection result from the above ground equipment, the down starting point detection result obtaining unit 21, the down end point detection result obtaining unit 22, and the down backup detection result. An acquisition unit 23 and a downstream object detection result acquisition unit 24 are provided, and based on those detection results, a downstream train enters a downstream start point ADC (alarm start point) and then a downstream train enters a railroad crossing 13. And a downstream object detection logic determination unit 25 to 30 for detecting the entry of a downstream train from the railroad crossing 13, and in this embodiment, each is realized by a relay circuit.

下り始動点検知結果取得部21は、警報始動用の踏切制御子のリレー出力を条件とする中継リレーを主体とした回路からなり、下り始動点ADC(警報始動点)に係る列車検知結果である下り始動点検知結果APRを中継リレーで取得して出力するようになっている。
下り終止点検知結果取得部22は、警報終止用の踏切制御子のリレー出力を条件とする中継リレーを主体とした回路からなり、下り終止点BDC(警報終止点)に係る列車検知結果である下り終止点検知結果BPRを中継リレーで取得して出力するようになっている。
The descending start point detection result acquisition unit 21 is a circuit mainly composed of a relay relay conditioned on the relay output of a level crossing controller for an alarm start, and is a train detection result related to a descending start point ADC (alarm start point). The downstream starting point detection result APR is acquired by a relay relay and output.
The descent end point detection result acquisition unit 22 is a circuit mainly composed of a relay relay on the condition of a relay output of a level crossing controller for an alarm end, and is a train detection result related to a descent end point BDC (alarm end point). The downstream end point detection result BPR is acquired by a relay relay and output.

下りバックアップ検知結果取得部23は、下り踏切バックアップ装置BBuのリレー出力を条件とする中継リレーを主体とした回路からなり、下り踏切バックアップ装置BBuの列車検知結果である下りバックアップ検知結果BBuRを中継リレーで取得して出力するようになっている。
下り物体検知結果取得部24は、下り感応部15+16のリレー出力である下り障検Rを条件とする中継リレーを主体とした回路からなり、下り線11における踏切道上の物体検知結果を下り感応部15+16から取得して、それを下り障検PRとして出力するようになっている。
The downstream backup detection result acquisition unit 23 is composed of a circuit mainly including a relay relay on the condition of the relay output of the downstream railroad crossing backup device BBu, and relays the downstream backup detection result BBuR, which is the train detection result of the downstream railroad crossing backup device BBu, to the relay relay. And output it.
The descending object detection result acquisition unit 24 is composed of a circuit mainly including a relay relay on the condition of a descending fault detection R, which is a relay output of the descending sensing unit 15 + 16, and converts an object detection result on a level crossing on the descending line 11 into a descending sensing unit. 15 + 16, and outputs it as a downstream fault detection PR.

しかも、この下り物体検知結果取得部24の中継リレーには、物体検知結果が不成立から成立に転ずるときの状態遷移を遅延させることで過剰検知を回避するために約1s(1秒)の緩放性が付与されるとともに、500ms(0.5s、0.5秒、列車進出確認時素の分)の緩動性が付与されて、物体検知結果が成立から不成立に転ずるときの状態遷移が500msだけ遅延するようになっている。
この500msの列車進出確認時素は、次のような潜り最大幅を煽り最低速度で除した両立確定時間(450ms)以上の時間として選定されている。
In addition, the relay of the downstream object detection result acquisition unit 24 slowly releases about 1 s (1 second) in order to avoid excessive detection by delaying the state transition when the object detection result changes from non-establishment to establishment. In addition to the characteristic, a slowness of 500 ms (0.5 s, 0.5 seconds, the minute for confirming train entry) is provided, and the state transition when the object detection result changes from being established to not being established is 500 ms. Only to be delayed.
The 500 ms train advance confirmation time element is selected as a time equal to or longer than the compatibility determination time (450 ms) obtained by dividing the maximum dive width by the minimum speed as follows.

上記の両立確定時間を定める2要素のうち、潜り最大幅は、走行列車の台枠の下を前記感応部の検知媒体がくぐり抜ける隙間の最大値であり、課題欄において既述した5000mmが採用される。これは、踏切通過対象の全列車に係る「潜り最大幅」である。
また、煽り最低速度は、走行列車の車輪のレールからの浮き上がりに起因して終止点用踏切制御子の検知結果が一時的に成立から不成立に転ずることがある列車走行速度の最小値であり、具体的には、経験則に基づき、注意信号時の列車走行速度である時速55kmや時速45kmよりも低速の時速40kmが採用される。これは、踏切通過対象の全列車に係る「煽り最低速度」である。
Among the two factors that determine the compatibility determination time, the maximum dive width is the maximum value of the gap through which the detection medium of the sensitive section passes under the underframe of the traveling train, and the 5000 mm described above in the task column is employed. You. This is the “maximum dive width” for all the trains to be crossed.
In addition, the lowest lift speed is the minimum value of the train traveling speed at which the detection result of the end point level crossing controller may temporarily change from being established to not being established due to the lifting of the traveling train wheels from the rails, Specifically, based on an empirical rule, a speed of 55 km per hour, which is the train traveling speed at the time of the warning signal, or a speed of 40 km per hour lower than the speed of 45 km per hour is adopted. This is the “minimizing speed” for all trains that are to be crossed.

そして、潜り最大幅の5000mmを煽り最低速度の時速40kmで除して、450ms(0.45s、0.45秒)の両立確定時間が得られ、少しだけ安全側で切りの良い500ms(0.5s、0.5秒)が列車進出確認時素に採用されている。また、列車進出確認時素と両立確定時間との差には、切りの良さにとどまらず、上記の潜り最大幅や煽り最低速度として採用した値の不確実性を考慮した安全率を反映する意義や、地上設備におけるコンデンサ容量といった時素の経年変化による変動などを吸収する意義もある。
なお、列車進出確認時素に明確な上限は無いが、踏切からの列車進出の後に踏切警報を停止したり遮断桿を上げたりするタイミングが遅くなるのを回避するといった観点から、列車進出確認時素は1s以下が望ましい。
Then, the maximum dive width of 5000 mm is divided by the minimum speed of 40 km / h to obtain a 450 ms (0.45 s, 0.45 s) compatibility determination time, and the 500 ms (0. 5 s, 0.5 seconds) is used as a reference when confirming train entry. In addition, the difference between the train entry confirmation time and the balance confirmation time is not limited to the goodness of the cut, but also reflects the safety factor that takes into account the uncertainty of the values used as the maximum dive width and the minimum cruising speed described above. It also has the significance of absorbing fluctuations due to aging of time elements such as the capacity of capacitors in ground equipment.
There is no clear upper limit to the train entry confirmation time, but from the viewpoint of avoiding delaying the timing of stopping the crossing warning and raising the blocking rod after the train entry from the railway crossing, The element is desirably 1 s or less.

下り物体検知論理判定部25〜30は、下り警報検知部25と所定時間経過検知部26と踏切進入検知部27と踏切警報制御部28と踏切警報停止部29と物体弁別部30とを具備していて、上述した下り始動点検知結果APRと下り終止点検知結果BPRと下りバックアップ検知結果BBuRと下り障検PR(物体検知結果)とに基づき、下り列車の進行に伴う検知結果の遷移に応じて下り始動点ADC(警報始動点)への列車進入とその後の踏切13への列車進入とその後の踏切13からの列車進出とを論理判定にて検知するようになっている。さらに、判定結果の一つとして後述の警報Rを出して警報灯14や在れば踏切遮断機の動作制御に供するとともに、もう一つの判定結果としてやはり後述する特殊信号発光機制御用リレーの信号EUR(以下、EURという。)を出して特殊信号発光器や障検警報用ブザー等の動作制御に供するようになっている。   The descending object detection logic determining units 25 to 30 include a descending alarm detecting unit 25, a predetermined time elapsed detecting unit 26, a level crossing approach detecting unit 27, a level crossing alarm control unit 28, a level crossing alarm stopping unit 29, and an object discriminating unit 30. In addition, based on the above-described downstream start point detection result APR, downstream end point detection result BPR, downstream backup detection result BBuR, and downstream fault detection PR (object detection result), the detection result transition according to the progress of the downstream train is performed. Then, the approach of the train to the downhill starting point ADC (alarm starting point), the subsequent train entry to the railroad crossing 13 and the subsequent train advancement from the railroad crossing 13 are detected by logical judgment. Further, as one of the judgment results, an alarm R to be described later is issued to control the operation of the alarm lamp 14 and the level crossing circuit breaker if present, and as another judgment result, a signal EUR of a relay for controlling a special signal light emitting device also to be described later. (Hereinafter, referred to as EUR) for controlling the operation of a special signal light emitter, a fault detection alarm buzzer, and the like.

下り警報検知部25は、上述の下り始動点検知結果APRと下りSRと後述の下り警報停止Rとを条件とする下りSR信号用リレーを主体とした回路からなり、下り始動点検知結果APRの成立(リレー落下)にて警報始動点への列車進入を検知して下りSRを成立(リレー落下)させるとともに、その下りSR成立状態を下り警報停止Rの成立(リレー動作)時まで維持するようになっている。
所定時間経過検知部26は、上述の下りSRを条件とする下りSLPR信号用リレーを主体とした回路からなり、下りSLPRに20s(20秒)の緩放性を持たせることで、下りSRの成立(警報開始)から上述の遮断完了時間(20s)だけ遅れて下りSLPRが成立(リレー落下)するとともに、下りSRの不成立(リレー動作)に伴って下りSLPRも不成立状態に戻るようになっている。
The downstream alarm detection unit 25 is composed of a circuit mainly including a relay for a downstream SR signal on the condition that the above-mentioned downstream starting point detection result APR, a downstream SR, and a downstream alarm stop R described below are provided. When the train entry to the alarm start point is detected by the establishment (relay fall), the down SR is established (relay fall), and the down SR establishment state is maintained until the down alarm stop R is established (relay operation). It has become.
The predetermined time elapse detection unit 26 is composed of a circuit mainly including a relay for a downlink SLPR signal on the condition of the above-mentioned downlink SR, and by giving the downlink SLPR a slow release of 20 s (20 seconds), The down SLPR is established (relay drop) with a delay of the above-described interruption completion time (20 s) from the establishment (alarm start), and the down SLPR also returns to the unsatisfied state with the down SR not established (relay operation). I have.

踏切進入検知部27は、後述の下り警報停止Rと上述の下りSLPRと上述の下り終止点検知結果BPRと上述の下りバックアップ検知結果BBuRと下り障検列車進入検知Rと上述の下り障検PR(物体検知結果)とを条件とする下り障検列車進入検知R信号用リレーを主体とした回路からなり、下りSLPRの成立(リレー落下)によって下り始動点ADCへの列車進入から上述の遮断完了時間(20s)が経過した後であることが確認されていることと、下り終止点検知結果BPRが成立(リレー動作)したことと、下りバックアップ検知結果BBuRが成立(リレー動作)したことと、下り障検PR(物体検知結果)が成立(リレー落下)したこととが、全て満たされたときに、下り障検列車進入検知Rを成立(リレー動作)させることで、踏切13への列車進入を検知するとともに、その下り障検列車進入検知R成立状態を下り警報停止Rの成立(リレー動作)時まで維持するようになっている。   The railroad crossing approach detection unit 27 includes a downstream alarm stop R, a downstream SLPR, a downstream end point detection result BPR, a downstream backup detection result BBuR, a downstream obstacle detection train entrance detection R, and a downstream obstacle detection PR described below. (Object detection result) and a circuit mainly composed of a relay for the R signal for detection of the entry of a train for detecting a failure on a fault, and upon completion of the down SLPR (relay fall), the above-mentioned interruption is completed from the train entering the starting point ADC. It is confirmed that the time (20 s) has elapsed, that the downstream end point detection result BPR has been established (relay operation), that the downstream backup detection result BBuR has been established (relay operation), When the down fault detection PR (object detection result) is satisfied (relay fall) and all of the conditions are satisfied, the down fault detection train entry detection R is completed (relay operation). And in, as well as detect the train entering the crossing 13, so as to maintain until satisfied (relay operation) of the downlink Sawaken train enters the detection R established state down alarm stop R.

踏切警報制御部28は、上述の下りSRと上り側の同様な上りSRと上述の下り終止点検知結果BPRと上り側の同様な上り終止点検知結果DPRとを条件とする警報R信号用リレーを主体とした回路からなり、下りSRと下り終止点検知結果BPRと上りSRと上り終止点検知結果DPRとのうち何れか一つでも成立(下りSR及び上りSRのリレー落下、BPR及びDPRのリレー動作)している間は警報Rを成立(リレー落下)させることで、下り列車が下り始動点ADCに進入してから踏切13を通過し終えるまで、更には同様に上り列車の警報始動点進入から踏切進出までも、警報灯14に踏切警報を出させるようになっている。なお、上り側の上りSRは、下り踏切物体検知装置20の生成する信号ではないので図示や繰り返しとなる詳細な説明は割愛するが、例えば、本実施例の欄の冒頭で言及した上り線用の別の踏切物体検知装置において下り警報検知部25と同様の回路により下りSRと同様にして生成されるので、その出力信号が用いられる。   The level crossing alarm control unit 28 is a relay for an alarm R signal that is conditioned on the above-mentioned down SR, the same up SR on the up side, the above-mentioned down end point detection result BPR, and the same up-end detection point DPR on the up side. And at least one of the downlink SR, the downlink end point detection result BPR, the uplink SR, and the uplink end point detection result DPR is satisfied (relay of the downlink SR and the uplink SR, fall of the BPR and DPR). While the relay is in operation, the alarm R is established (relay fall), so that the descending train enters the down starting point ADC and then passes through the railroad crossing 13 until the upcoming train has finished. The warning light 14 issues a level crossing warning from entry to level crossing. In addition, since the upbound SR is not a signal generated by the downbound object detecting device 20, detailed description of illustration and repetition is omitted, but, for example, the upbound SR mentioned at the beginning of the column of the present embodiment is omitted. In the other level crossing object detection device, the signal is generated by the same circuit as the down warning detection unit 25 in the same manner as the down SR, and the output signal is used.

踏切警報停止部29は、何れも上述した下り障検列車進入検知Rと下り障検PR(物体検知結果)と下り終止点検知結果BPRとを条件とする下り警報停止R信号用リレーを主体とした回路からなり、下り障検列車進入検知Rが成立(リレー動作)していることに基づいて踏切13への列車進入が検知された後であることと、下り終止点検知結果BPRが不成立(リレー落下)になっていることと、下り障検PR(物体検知結果)が不成立(リレー動作)になったこととが、全て満たされたときに、踏切13からの列車進出を検知して、下り警報停止Rを成立(リレー動作)させるようになっている。   The railroad crossing alarm stop unit 29 mainly includes a relay for a descent alarm stop R signal that is based on the above-described descent fault detection train entry detection R, descent fault detection PR (object detection result), and descent end point detection result BPR. It is after the detection that the train entry to the railroad crossing 13 has been detected based on the fact that the downcoming fault detection train entry detection R has been established (relay operation), and the descent end point detection result BPR is not established ( The relay advance is detected from the railroad crossing 13 when all of the conditions are satisfied, that is, the relay has fallen) and the PR (object detection result) has failed (relay operation). A down alarm stop R is established (relay operation).

物体弁別部30は、上述の警報Rと上述の下り障検PR(物体検知結果)と上述の下り障検列車進入検知Rと上り側も同様になっていればその上り障検PR及び上り障検列車進入検知Rとを条件とするEUR用の特殊信号発光機制御用リレーを主体とした回路からなり、警報Rが成立(リレー落下)していて警報灯14が踏切警報を出しているときのうち、下り障検列車進入検知Rが不成立(リレー落下)になっているとき、即ち下り始動点ADC(警報始動点)への列車進入の検知から踏切13への列車進入の検知までの間は、下り感応部15+16が踏切道上の物体を検知して下り障検R又は下り障検PR(物体検知結果)が落下すると、下り感応部15+16の検知した物体を障害物と判定して、過剰検知回避用の緩放性による4〜6sの確認期間の経過後にEURを成立(リレー落下)させることで踏切障害物検知装置に障検警報を出させるようになっている。これに対し、それ以外のときは、特に警報Rの成立(リレー落下)時であっても、下り障検列車進入検知Rが成立(リレー動作)しているときは、すなわち踏切への列車進入の検知から踏切からの列車進出の検知までの間は、下り感応部15+16の検知した物体を列車と判定して、EURを不成立(リレー動作)状態にすることで、踏切障害物検知装置に障検警報を出させないようになっている。   If the above-mentioned alarm R, the above-mentioned down obstacle detection PR (object detection result), and the above-mentioned down obstacle detection train entry detection R are the same, the up obstacle detection PR and the up obstacle It consists of a circuit mainly composed of a relay for controlling a special signal light emitter for EUR under the condition of the detection of the detection of the train entry R, and when the alarm R is established (relay falling) and the alarm lamp 14 issues a level crossing alarm. Of these, when the downcoming train detection train entry detection R is not established (relay fall), that is, during the period from detection of train entry to the down starting point ADC (alarm start point) to detection of train entry to the railroad crossing 13 When the descending sensing unit 15 + 16 detects an object on a level crossing and the downcoming fault detection R or the downcoming fault detecting PR (object detection result) falls, the object detected by the downcoming sensing unit 15 + 16 is determined to be an obstacle, and excessive detection is performed. 4-6 with slow release for avoidance And adapted to issue a Sawaken alarm level crossing obstacle detection device by to establish EUR (relay drop) after a confirmation period. On the other hand, in other cases, even when the alarm R is established (relay fall), when the downcoming fault detection train entry detection R is established (relay operation), that is, the train enters a railroad crossing. During the period from the detection of the railroad crossing to the detection of the advance of the train from the railroad crossing, the object detected by the descent sensing unit 15 + 16 is determined to be a train, and the EUR is not established (relay operation). It is designed not to issue a detection alarm.

この実施例1の踏切保安装置および踏切物体検知装置20について、その使用態様及び動作を、図面を引用して説明する。
図2(a)は、複線区間の下り線11を走行する下り列車の進行状態を示す記号図である。また、図2(b)は、下り踏切物体検知装置20の動作状態を示すリレー信号のタイムチャートであり、図3(a),(b)は、何れも、図2(b)のタイムチャートの一部の拡大図である。
The use mode and operation of the level crossing security device and the level crossing object detection device 20 according to the first embodiment will be described with reference to the drawings.
FIG. 2A is a symbol diagram showing a traveling state of a down train running on the down line 11 in a double track section. FIG. 2B is a time chart of a relay signal indicating an operation state of the descending level crossing object detecting device 20, and FIGS. 3A and 3B are both time charts of FIG. 2B. FIG.

ここで、上述したように、踏切13を通過する対象の全列車に係る煽り発生限界の列車走行速度最小値である煽り最低速度が40km/h(即ち時速40km)であり、やはり踏切通過対象の全列車に係る下り列車の台枠の下を感応部15+16の検知媒体がくぐり抜ける隙間の最大値である潜り最大幅が5m(即ち5000mm)であり、その5mを煽り最低速度40km/hで除して算出された両立確定時間が0.45sであるので、両立確定時間0.45sと煽り最低速度40km/hとは密に対応していると言える。   Here, as described above, the minimum travel speed, which is the minimum train running speed of the travel limit of all the trains to be passed through the railroad crossing 13, is 40 km / h (that is, 40 km / h). The maximum dive width, which is the maximum value of the gap through which the sensing medium of the sensing unit 15 + 16 passes under the underframe of the down train of all trains, is 5 m (that is, 5000 mm), and the 5 m is divided by the minimum speed of 40 km / h. Since the balance determination time calculated in this way is 0.45 s, it can be said that the balance determination time 0.45 s and the minimum lift speed of 40 km / h correspond closely.

これに対し、両立確定時間0.45sに少しだけ上乗せして選定された列車進出確認時素0.5sと密に対応しているのは、その0.5sで潜り最大幅5mを除して得られる36km/h(即ち時速36km)であり、この潜り最低速度36km/hは、踏切13を通過する下り列車の走行速度がその潜り最低速度以上であれば、下り物体検知結果取得部24の緩動性(列車進出確認時素0.5s)の働きによって、感応部15+16の検出した不所望な「くぐり抜け」が下り物体検知結果取得部24の出力する下り障検PRにまで及んで検知されるのが阻止される限界の速度である。   On the other hand, the reason that it corresponds closely to the train entry confirmation time 0.5 s, which is slightly added to the compatibility determination time 0.45 s, is 0.5 s except for the maximum dive width of 5 m. The obtained minimum speed of 36 km / h is 36 km / h (that is, 36 km / h). If the traveling speed of the descending train passing through the level crossing 13 is equal to or higher than the minimum dive speed, the descending object detection result acquisition unit 24 Due to the function of the sluggishness (0.5 s at the time of confirming the train advance), an undesired “pass through” detected by the sensing units 15 + 16 is detected down to the down fault detection PR output by the down object detection result obtaining unit 24. Is the maximum speed at which it can be stopped.

このような煽り最低速度40km/hと潜り最低速度36km/hとを用いて図2(b),図3(a),図3(b)のタイムチャートを分類すると、図2(b)は、列車走行速度が潜り最低速度36km/hと煽り最低速度40km/hとの間であって、「くぐり抜け」が検知されず、「煽り」が発生しないときのものである。
また、図3(a)は、列車走行速度が煽り最低速度40km/hよりも高速であって、「煽り」は発生するが、「くぐり抜け」が検知されないときのものである。
さらに、図3(b)は、列車走行速度が潜り最低速度36km/hよりも低速であって、「くぐり抜け」は検知されるが、「煽り」が発生しないときのものである。
When the time charts of FIGS. 2 (b), 3 (a) and 3 (b) are classified by using such a minimum moving speed of 40 km / h and a minimum dive speed of 36 km / h, FIG. In this case, the train traveling speed is between the minimum dive speed of 36 km / h and the minimum cruising speed of 40 km / h, and no "pass through" is detected and no "fanning" occurs.
FIG. 3A shows a case where the train traveling speed is higher than the minimum speed of 40 km / h, and "fanning" occurs but "pass through" is not detected.
Further, FIG. 3B shows the case where the train traveling speed is lower than the minimum dive speed of 36 km / h, and "pass through" is detected, but "fanning" does not occur.

これから詳述する列車通過時の一連動作からも確認されるように(図2(a)参照)、下り始動点ADCの列車検知区間Saの起点側の端から、踏切13の踏切道(より正確には列車検知区間Sbと下り感応部15+16検知区間とを併せた区間)の終点側の端までが、警報Rの成立(リレー落下)する下りの踏切制御区間になる。
また、踏切13の踏切道(より正確には列車検知区間Sbと下り感応部15+16検知区間とが重複する区間)の起点側の端から、踏切13の踏切道(より正確には列車検知区間Sbと下り感応部15+16検知区間とを併せた区間)の終点側の端までが、踏切障害物検知をマスク・抑制するマスク条件として使用される下り障検列車進入検知Rの成立(リレー動作)する下りの障検マスク区間になる。そのため、下り列車が下りの踏切制御区間より起点側を走行して踏切13に向かっているところから説明を始める。
As will be confirmed from a series of operations at the time of passing a train, which will be described in detail below (see FIG. 2 (a)), the crossing road of the level crossing 13 (more accurate) from the end on the starting side of the train detection section Sa of the downstream starting point ADC. The section up to the end point side of the train detection section Sb and the down sensing section 15 + 16 detection section) is a down railroad crossing control section where the alarm R is established (relay falls).
In addition, from the end on the starting side of the level crossing of the level crossing 13 (more precisely, the section where the train detection section Sb and the down-sensitive section 15 + 16 detection section overlap), the level of the level crossing 13 of the level crossing 13 (more precisely, the train detection section Sb) Up to the end of the end section of the section (combination of the detection section and the detection section 15 + 16), the detection of the entrance detection R for the detection of a railroad crossing which is used as a mask condition for masking / suppressing the detection of a railroad crossing obstacle (relay operation). This is the downcoming fault detection mask section. Therefore, the description starts from the point where the down train travels on the starting point side from the down railroad crossing control section toward the railroad crossing 13.

このとき、すなわち下り列車が下りの踏切制御区間に在線していないときには(図2(b)の左端部を参照)、下り始動点検知結果APRが不成立(リレー動作)になり、下り終止点検知結果BPRも下りバックアップ検知結果BBuRも不成立(リレー落下)になっている。また、踏切横断中のものが無ければ下り障検R,PR(物体検知結果)が不成立(リレー動作)になり、踏切横断の有無にかかわらず下り障検列車進入検知Rも下り警報停止Rも不成立(リレー落下)になっている。さらに、下りSRも下りSLPRも警報Rも不成立(リレー動作)になっているので、警報灯14は踏切警報を発せず、踏切障害物検知装置は障検警報を発せず、踏切道の通行が認容される。   At this time, that is, when the down train is not on the down railroad crossing control section (see the left end of FIG. 2B), the down starting point detection result APR is not satisfied (relay operation) and the down end point detection Neither the result BPR nor the downstream backup detection result BBuR is established (relay drop). Also, if there is no crossing at the railroad crossing, the failure detection R and PR (object detection result) will not be established (relay operation). Not established (relay dropped). Further, since neither the down SR, the down SLPR nor the alarm R is established (relay operation), the alarm lamp 14 does not issue a level crossing alarm, the level crossing obstacle detection device does not generate a fault detection alarm, and the traffic on the level crossing is not performed. Accepted.

そして、下り列車が下り始動点ADCに到達して列車検知区間Saに進入すると(図2(a)参照)、そのとき(図2(b)時刻T1参照)、下り始動点検知結果APRが成立(リレー落下)し、それに応じて下りSRが成立(リレー落下)し、さらには警報Rも成立(リレー落下)するので、警報灯14から踏切警報が発せられる。下り列車が下り始動点ADCを通過してからも暫くは(図2時刻T1〜T3参照)、下り始動点ADCへの列車進入の検知後の上述のリレー状態が継続するが、その検知から上述の遮断完了時間(20s)が経過すると、下りSLPRが成立(リレー落下)して、踏切13への列車進入を検知する態勢が整う。   Then, when the down train reaches the down starting point ADC and enters the train detection section Sa (see FIG. 2A), at that time (see time T1 in FIG. 2B), the down starting point detection result APR is established. (Relay drop), the down SR is established (relay drop), and the alarm R is also established (relay drop) accordingly. For a while after the downstream train passes the downstream starting point ADC (see time T1 to T3 in FIG. 2), the above-described relay state after the detection of the train entry into the downstream starting point ADC is continued. When the cutoff completion time (20 s) has elapsed, the down SLPR is established (relay falls), and the system for detecting the train entering the railroad crossing 13 is prepared.

遮断完了時間(20s)は、上述したように1種踏切において遮断機により踏切が遮断されるまでの時間であり、踏切警報機や踏切しゃ断機により踏切が遮断され、通常は道路通行人や自動車が踏切道に侵入することができなくなるまでの期間である。警報始動点への列車進入から上記の遮断完了時間(20s)が経過したことは、下り列車が踏切13の踏切道の間近に接近した状態になっている或いはなりつつあることを意味する。そのため、踏切13への列車進入の検知結果である障検列車進入検知Rの条件に、下りSRに20秒程の緩放時素を付加した下りSLPRの成立(リレー落下)条件を追加することにより、踏切への列車進入を示す信号の不所望な成立の機会を的確に限定して誤検知を少なくすることができる。   The shutoff completion time (20 s) is the time until the level crossing is interrupted by the interrupter at the type 1 level crossing as described above, and the level crossing is interrupted by the level crossing alarm or the level interrupter. This is the period until the vehicle can no longer enter the level crossing. The fact that the above-mentioned interruption completion time (20 s) has elapsed since the train entered the alarm starting point means that the down train is approaching or approaching the level crossing of the level crossing 13. Therefore, a condition for establishing a down SLPR (a relay drop) condition in which a slow release element of about 20 seconds is added to the down SR is added to the condition of the fault detection train entry detection R which is a detection result of the train entering the railroad crossing 13. Accordingly, it is possible to appropriately limit an opportunity of an undesired establishment of a signal indicating a train entry to a railroad crossing, thereby reducing erroneous detection.

具体的には、その間に(図2(b)時刻T2辺りを参照)、踏切13の踏切道上の二本レールがスキー板のエッジといった金属物などで短絡されると短絡解消・解放まで一時的に下り終止点検知結果BPRが成立(リレー動作)するが(図2(b)#1a参照)、下り障検PR(物体検知結果)が不成立(リレー動作)であることや、下りバックアップ検知結果BBuRが不成立(リレー落下)であることから、下り障検列車進入検知Rが不成立(リレー落下)を維持するので(図2(b)#1b参照)、踏切13への列車進入の誤検知が的確に防止される。   More specifically, if the two rails on the level crossing of the level crossing 13 are short-circuited by a metal object such as an edge of a ski in the meantime (see around time T2 in FIG. 2 (b)), the short-circuit is temporarily removed and released. The down end point detection result BPR is established (relay operation) (refer to # 1a in FIG. 2B), but the down fault detection PR (object detection result) is not established (relay operation), and the down backup detection result Since the BBuR is not established (relay fall), the detection of train entry R for failure detection is maintained unsatisfied (relay fall) (see # 1b in FIG. 2 (b)). Precisely prevented.

また、踏切13の踏切道を歩行者や自動車などが通過すると、下り感応部15+16の下り障検Rが一時的に成立(リレー落下)するが、その成立時間が1s未満のものは、下り物体検知結果取得部24の1sの緩放性によって速やかに除かれるので、下り障検PRにも下り障検列車進入検知Rにも影響しない。一方、成立時間が1s以上の下り障検Rは(図2(b)#2a参照)、下り障検PRの一時的な成立(リレー落下)を招くが(図2(b)#2b参照)、下りバックアップ検知結果BBuRが不成立(リレー落下)であることや、下りSLPRが不成立(リレー動作)であることから、下り障検列車進入検知Rが不成立(リレー落下)を維持する(図2(b)#2c参照)。
そのため、何れの場合も、踏切13への列車進入の誤検知が的確に防止される。
Also, when a pedestrian or a car passes through the level crossing of the level crossing 13, a down fault detection R of the down sensing unit 15 + 16 is temporarily established (relay fall). Since it is quickly removed by the slow release of 1 s of the detection result acquisition unit 24, it does not affect the down fault detection PR or the down fault detection train entry detection R. On the other hand, a down fault detection R having a duration of 1 s or more (see # 2a in FIG. 2 (b)) causes a temporary establishment (relay drop) of the down fault detection PR (see # 2b in FIG. 2 (b)). Since the downstream backup detection result BBuR is not established (relay fall) or the downstream SLPR is not established (relay operation), the downcoming train detection entry R is maintained unsatisfied (relay fall) (FIG. 2 ( b) See # 2c).
Therefore, in any case, erroneous detection of a train entering the railroad crossing 13 is accurately prevented.

それから、下り列車が下り終止点BDCまで進むと(図2時刻T3参照)下り終止点検知結果BPRが成立(リレー動作)し、下り列車が下り踏切バックアップ装置BBuまで進むと下りバックアップ検知結果BBuRが成立(リレー動作)し、更に下り列車の先頭が踏切13の踏切道に差し掛かると(図2時刻T4参照)、下り障検R,PR(物体検知結果)が成立(リレー落下)する。これで、警報始動点への列車進入の検知後に必要な遮断完了時間(20s)が経過したことと、終止点検知結果が成立したことと、バックアップ検知結果が成立したことと、踏切道上の物体検知結果が成立したこととが、全て満たされる。そのため、下り障検列車進入検知Rが成立(リレー動作)して、踏切13への列車進入が検知されることとなる。   Then, when the downstream train advances to the downstream end point BDC (see time T3 in FIG. 2), the downstream end point detection result BPR is established (relay operation), and when the downstream train advances to the downstream crossing backup device BBu, the downstream backup detection result BBuR is displayed. When it is established (relay operation), and when the head of the down train approaches the level crossing of the level crossing 13 (see time T4 in FIG. 2), the down fault detection R, PR (object detection result) is established (relay drop). This indicates that the required shutdown completion time (20 s) has elapsed after the detection of the train entry to the alarm start point, the end point detection result has been established, the backup detection result has been established, and the object on the railroad crossing has been detected. The satisfaction of the detection result is all satisfied. For this reason, the downcoming fault detection train entry detection R is established (relay operation), and the train entry to the railroad crossing 13 is detected.

更に下り列車が踏切道上を走行すると、下りバックアップ検知結果BBuRが不成立(リレー落下)となり、それから、下り列車が最後尾まで踏切13の踏切道を完全に通過し終えると(図2時刻T5参照)、同時に或いは僅かに前後して、下り終止点検知結果BPRが不成立(リレー落下)になるとともに、下り障検R,PR(物体検知結果)が不成立(リレー動作)に戻り、それに応じて下り警報停止Rが一時だけ成立(リレー動作)し、それに緩放性の100msだけ遅れて下り障検列車進入検知Rが不成立(リレー落下)になる。このように、踏切13への列車進入の検知後に、下り終止点検知結果BPRと下り障検PR(物体検知結果)との双方が不成立になったことに応じて、下り警報停止Rが一時だけ成立(リレー動作)することで、踏切13からの列車進出が検知されることとなる。   Further, when the down train runs on the crossing, the down backup detection result BBuR is not established (relay fall), and then, when the down train has completely passed the crossing of the crossing 13 to the end (see time T5 in FIG. 2). Simultaneously or slightly before and after, the descending end point detection result BPR becomes unsatisfied (relay drop), and the descending fault detection R, PR (object detection result) returns to unsatisfied (relay operation), and accordingly the descending alarm is issued. The stop R is established only temporarily (relay operation), and the delay detection train entry detection R is not established (relay drop) with a slow release of 100 ms. In this way, after the detection of the train entering the railroad crossing 13, in response to both the descent end point detection result BPR and the descent failure detection PR (object detection result) being not satisfied, the descent alarm stop R is temporarily stopped. By the establishment (relay operation), the train advance from the railroad crossing 13 is detected.

それに加え、下り警報停止Rの成立(リレー動作)に応じて、下りSRも下りSLPRも警報Rも不成立(リレー動作)状態になって(図2(b)の右端部を参照)、下り列車が下りの踏切制御区間に在線していないときの状態に下り踏切物体検知装置20の動作状態が戻るので(図2(b)の左端部を参照)、次の下り列車を迎えることができる。
このような一連の動作状態で、踏切通過時(図2時刻T3〜T5参照)の列車走行速度が潜り最低速度36km/hと煽り最低速度40km/hとの間にあると、上述したように(図2(b)参照)、下り障検PRに乱れが生じないので、「くぐり抜け」の不所望な検知はなされず、更に、「煽り」の発生も無いので、下り終止点検知結果BPRにも乱れが生じない。そのため、踏切13に係る列車進入と列車進出が的確に検知される。
In addition, in response to the establishment of the down alarm stop R (relay operation), both the down SR, the down SLPR, and the alarm R are not established (relay operation) (see the right end of FIG. 2B), and the down train Since the operating state of the down-level crossing object detection device 20 returns to the state when is not in the down-level crossing control section (see the left end portion in FIG. 2B), the next down train can be greeted.
In such a series of operating states, as described above, when the train traveling speed at the time of passing through a railroad crossing (see time T3 to T5 in FIG. 2) is between the minimum dive speed of 36 km / h and the minimum dive speed of 40 km / h, as described above. (Refer to FIG. 2 (b).) Since there is no disturbance in the descending fault detection PR, an undesired detection of "pass through" is not performed, and further, since there is no occurrence of "fanning", the descending end point detection result BPR is not detected. No disturbance occurs. Therefore, the train entry and the train exit related to the railroad crossing 13 are detected accurately.

これに対し、踏切通過時(図3(a)時刻T3〜T5参照)の列車走行速度が煽り最低速度40km/hよりも高速であると、上述したように、「くぐり抜け」は検知されないが、「煽り」は発生することがある(図3(a)参照)。煽りが発生して、その影響が下り終止点検知結果BPRに及ぶと、成立(リレー動作)状態を維持すべき下り終止点検知結果BPRが一時的に不成立(リレー落下)状態に転じてしまうが、これが踏切13への列車進入の検知後に起こっても(図3(a)#3a参照)、くぐり抜けの影響の無い下り障検PRが成立(リレー落下)状態を維持しているため(図3(a)#3b参照)、下り警報停止Rは不成立(リレー落下)状態を維持するので(図3(a)#3c参照)、踏切警報の早すぎる停止も踏切13からの列車進出の誤検知も的確に防止される。   On the other hand, if the train traveling speed at the time of passing a railroad crossing (see times T3 to T5 in FIG. 3A) is higher than the minimum speed of 40 km / h, as described above, “pass through” is not detected. "Faning" may occur (see FIG. 3A). If the influence occurs on the descending end point detection result BPR due to the raising, the descending end point detection result BPR to be maintained in the established (relay operation) state is temporarily changed to the non-established (relay falling) state. Even if this occurs after the detection of the train entering the railroad crossing 13 (see # 3a in FIG. 3A), the down fault detection PR without the influence of passing through is maintained (relay drop) state (FIG. 3). (A) # 3b), since the down warning stop R is maintained in a non-established (relay drop) state (see # 3c in FIG. 3 (a)), the premature stop of the railroad crossing warning is erroneous detection of the train advance from the railroad crossing 13. Is also properly prevented.

さらに、踏切通過時(図3(b)時刻T3〜T5参照)の列車走行速度が潜り最低速度36km/hよりも低速であると、上述したように、「煽り」は発生しないが、「くぐり抜け」は検知されることがある(図3(b)参照)。下り感応部15+16の下り障検Rに発現するくぐり抜けのうち(図3(b)#4a参照)、列車進出確認時素0.5sを超えるものだけが下り物体検知結果取得部24によって検知され、その影響が下り障検PRに及ぶと、成立(リレー落下)状態を維持すべき下り障検PRが一時的に不成立(リレー動作)状態に転じてしまうが、これが踏切13への列車進入の検知後に起こっても(図3(b)#4b参照)、煽りの影響の無い下り終止点検知結果BPRが成立(リレー動作)状態を維持しているため(図3(b)#4c参照)、下り警報停止Rは不成立(リレー落下)状態を維持するので(図3(b)#4d参照)、踏切警報の早すぎる停止も踏切13からの列車進出の誤検知も的確に防止される。   Furthermore, when the train traveling speed at the time of passing through a railroad crossing (see times T3 to T5 in FIG. 3B) is lower than the minimum dive speed of 36 km / h, as described above, “fanning” does not occur, but “pass through”. May be detected (see FIG. 3B). Of the underpasses that appear in the downcoming fault detection R of the downcoming sensing units 15 + 16 (see # 4a in FIG. 3B), only those that exceed 0.5 s at the time of confirming the train advance are detected by the downcoming object detection result obtaining unit 24, When the influence reaches the down fault detection PR, the down fault detection PR that should maintain the established (relay fall) state temporarily changes to an unsatisfied (relay operation) state, which is the detection of the train entering the railroad crossing 13. Even if it occurs later (see # 4b in FIG. 3 (b)), the downstream end point detection result BPR without the influence of the tilting is maintained (relay operation) (see FIG. 3 (b) # 4c). Since the descent warning stop R is maintained in an unsatisfied state (relay drop) (see # 4d in FIG. 3B), it is possible to accurately prevent the stop of the railroad crossing warning too early and the false detection of the train advance from the railroad crossing 13.

図示は割愛したが、本発明の踏切保安装置および踏切物体検知装置を実施するのに好適な他の実施例として、列車進出確認時素を個々の列車の状況に応じて一時的に変更する例を述べる。ここでは、踏切に向けて又は踏切上を実際に走行している個々の列車に係る個別情報を取得する適宜な手段が設けられていることを前提として、その手段にて個別情報が得られたときに、その個別情報に基づいて列車進出確認時素を変更する要因として、くぐり抜け要因の隙間最大値(潜り最大幅)と、煽り発生限界の列車走行速度最小値(煽り最低速度)と、踏切に対する列車の走行位置(障害物検知時vs列車検知時)とを取り扱う。   Although illustration is omitted, as another embodiment suitable for implementing the level crossing security device and the level crossing object detecting device of the present invention, an example in which the train entry confirmation time is temporarily changed according to the status of each train State. Here, assuming that there is provided appropriate means for acquiring individual information relating to each train actually traveling toward or on the railroad crossing, the individual information was obtained by that means. Sometimes, the factors that change the train entry confirmation time based on the individual information include the maximum gap value (maximum diving width) of the passing-through factor, the minimum train running speed (minimizing the minimum speed), and the railway crossing And the running position of the train (when an obstacle is detected vs. when the train is detected).

上述の実施例1では列車進出確認時素の下限の両立確定時間が踏切通過対象の全列車に係る潜り最大幅および煽り最低速度を用いて算定されていたのに対し、この実施例2では、そのような共通の潜り最大幅と煽り最低速度に基づく列車進出確認時素が引き続き使用されるが、その使用態様が常時使用ではなくなり常態値(デフォルト値)として使用されるものにとどまり、上述した三つの列車進出確認時素変更要因の取得状況に応じて適宜一時変更されるようになっている。   In the first embodiment described above, the lower limit compatibility time of the train advancement confirmation element is calculated using the maximum dive width and the lowest traversing speed of all the trains to be crossed, whereas in the second embodiment, The train entry confirmation time based on the common maximum dive width and the lowest speed is used continuously, but the usage mode is not always used but is used as a normal value (default value). It is adapted to be temporarily changed as appropriate in accordance with the acquisition status of the three factors at the time of confirming train entry.

具体的には、個々の列車に係るくぐり抜け要因の隙間最大値(潜り最大幅)や煽り発生限界の列車走行速度最小値(煽り最低速度)を一方でも取得できたときには、その個別値を用いて両立確定時間を算出し直し、安全率乗算や端数切り上げ等を施して個別値を求めてから、一時的に列車進出確認時素を変更するようになっている。これにより、簡便に、踏切警報の停止タイミングの遅れが個別に適正化される。
また、感応部の検知した物体を列車と判定する列車検知時には列車進出確認時素を使用する(有効にする,正数値にする)が、感応部の検知した物体を障害物と判定する障害物検知時には、列車進出確認時素を使用しない(無効にする,ゼロにする)ようになっている。これにより、簡便に、障害物検知時のブザー音の延長が回避される。
Specifically, when the maximum gap value (maximum diving width) and the minimum train running speed limit (minimum cruising speed) of the traversal occurrence limit for each individual train can be obtained, the individual values are used. The reconciliation time is calculated again, the safety factor is multiplied, the fraction is rounded up, and the individual value is obtained. Then, the train entry confirmation time is temporarily changed. As a result, the delay of the stop timing of the level crossing alarm can be simply and individually optimized.
Also, when detecting a train that determines the object detected by the sensitive unit as a train, the train detection confirmation element is used (valid, set to a positive value), but the object detected by the sensitive unit is determined as an obstacle. At the time of detection, the train entry confirmation element is not used (disabled, set to zero). Thus, the extension of the buzzer sound at the time of obstacle detection can be easily avoided.

列車毎の個別値は、列車の車上子と踏切バックアップ装置との通信や、沿線に設けられた有線・無線の通信回線を介する司令室との通信などで、取得することができる。
列車進出確認時素の変更は、列車進出確認時素を異なる緩動時素で具現化したリレーを複数設けて択一的な切り替えにて使用することや、時素のカウント値を書き込み変更できるデジタル式の時素リレーを採用するといったことで、行える。
The individual value for each train can be obtained by communication between the upper arm of the train and the railroad crossing backup device, communication with the control room via a wired / wireless communication line provided along the railway, and the like.
To change the train entry confirmation time element, a plurality of relays that embody the train entry confirmation time element with different slow movement elements can be provided and used as an alternative switch, and the time element count value can be written and changed This can be done by employing a digital time relay.

本発明の踏切保安装置および踏切物体検知装置の実施例3について、その具体的な構成を、図面を引用して説明する。図4は、踏切保安装置のうち複線区間の下り線における踏切制御子BDCや下り踏切バックアップ装置BBuの配置を示す記号図である。
この例では、踏切物体検知装置20を設置する際、既存の終止用制御子BDCを踏切道13に寄せて移設するとともに、その近くに踏切バックアップ装置BBuを設置する。
A specific configuration of a third embodiment of the railroad crossing safety device and the railroad crossing object detection device of the present invention will be described with reference to the drawings. FIG. 4 is a symbol diagram showing an arrangement of a railroad crossing controller BDC and a downstream railroad crossing backup device BBu on a down line in a double track section of the railroad crossing safety device.
In this example, when installing the railroad crossing object detection device 20, the existing termination controller BDC is moved to the railroad crossing road 13 and the railroad crossing backup device BBu is installed near it.

この場合、リレー論理は、上述した実施例1,2のものと同じであるが、警報停止時期が上述の実施例に比べると、終止用制御子BDCの列車検知区間Sbの半分15m強(打込み点が踏切道13の縁端から3〜5mなので18〜20m)が踏切道13の前方側に及ぶので、列車が踏切道13を通過し終わってから警報停止するタイミングは踏切道縁端からの距離で表すと18〜20m、時間で0.8秒(時速90kmにて)遅くなる。列車が踏切道を通過し終わってから警報停止するタイミングは、上述の実施例の設備構成に比べ、距離で18〜20m、時間で0.8秒(時速90kmにて)遅くなるが、一方、終止用制御子BDCの設置位置が踏切道基準で移設前と同じ側なので、終止用制御子BDCや踏切バックアップ装置BBuへのケーブルを既存の接続箱等へ繋ぎ込む際に踏切道13を横断して敷設する必要がなく施工費を抑えることができる利点がある。   In this case, the relay logic is the same as that of the above-described first and second embodiments, but the alarm stop timing is slightly more than 15 m (punching in) in the train detection section Sb of the termination controller BDC compared to the above-described embodiment. Since the point is 3 to 5 m from the edge of the crossing 13, 18 to 20 m) extends to the front side of the crossing 13, and the timing of the alarm stop after the train has passed the crossing 13 is from the edge of the crossing 13. It is 18 to 20 m in terms of distance, and 0.8 seconds in time (at 90 km / h). The timing of stopping the alarm after the train has passed the railroad crossing is 18 to 20 m in distance and 0.8 seconds in time (at 90 km / h) as compared with the equipment configuration of the above-described embodiment. Since the installation position of the termination controller BDC is on the same side as before the relocation on the basis of the railroad crossing, the crossing of the railroad crossing 13 when connecting the cable to the termination controller BDC and the railroad crossing backup device BBu to the existing junction box or the like is performed. There is an advantage that there is no need to lay it down and construction costs can be reduced.

[その他]
上記実施例では、下り線と上り線の夫々に感応部を設けたものを図示したが、上下両線を跨ぐように感応部を設けて共用するのも状況にもよるが可能である。
上記実施例では、警報始動点ADC,CDCや警報終止点BDCで列車を検知するものとして、列車検知長の短い軌道回路である踏切制御子を挙げたが、列車検知長の長い一般的な軌道回路の使用が排除される訳ではない。
[Others]
In the above-described embodiment, the case where the sensitive section is provided for each of the down line and the up line is illustrated, but it is also possible to provide the sensitive section so as to straddle both the upper and lower lines and to share it, depending on the situation.
In the above-described embodiment, the railroad crossing controller, which is a track circuit having a short train detection length, has been described as detecting a train at the alarm start points ADC, CDC and the alarm end point BDC. This does not preclude the use of circuits.

上記実施例では、踏切物体検知装置がリレー回路で具体化されていたが、リレーは電磁リレーでも半導体リレーでも良い。また、デジタル回路やプログラマブルなマイクロプロセッサといった電子回路で踏切物体検知装置を具体化しても良い。
上記実施例では、物体検知結果が成立から不成立に転ずるときの状態遷移を列車進出確認時素500msだけ遅延させる具体的な手段として、下り物体検知結果取得部24の中継リレーに500msの緩動性を持たせたが、これは一例にすぎず、他のリレーを用いても実現しても良く、タイマやカウンタなどで実現しても良い。
In the above embodiment, the railroad crossing object detection device is embodied by a relay circuit, but the relay may be an electromagnetic relay or a semiconductor relay. Further, the level crossing object detection device may be embodied by an electronic circuit such as a digital circuit or a programmable microprocessor.
In the above embodiment, as a specific means for delaying the state transition when the object detection result changes from being established to not being established by 500 ms when confirming the train advancement, the relay relay of the descending object detection result acquisition unit 24 has a 500 ms slow motion. However, this is merely an example, and may be realized by using another relay, or may be realized by a timer, a counter, or the like.

上記実施例では、複線区間の下り線の踏切への適用例を述べたが、本発明の踏切保安装置および踏切物体検知装置の適用は、それに限られる訳でなく、複線区間の上り線の踏切や、単線区間の踏切にも適用することができる。   In the above embodiment, the application example to the crossing of the down line of the double track section has been described.However, the application of the level crossing security device and the crossing object detection device of the present invention is not limited thereto, and the crossing of the up track of the double track section. Alternatively, the present invention can be applied to a railroad crossing in a single track section.

10…線路、11…下り線、12…上り線、13…踏切、14…警報灯、
15+16…感応部、15…投光器、16…受光器、
ADC…下り始動点(警報始動点)、BDC…下り終止点(警報終止点)、
Sa,Sb…列車検知区間(検知長)、
20…下り踏切物体検知装置、
21…下り始動点検知結果取得部、22…下り終止点検知結果取得部、
23…下りバックアップ検知結果取得部、24…下り物体検知結果取得部、
25〜30…下り物体検知論理判定部、
25…下り警報検知部、26…所定時間経過検知部、27…踏切進入検知部、
28…踏切警報制御部、29…踏切警報停止部、30…物体弁別部
10 ... track, 11 ... down line, 12 ... up line, 13 ... railroad crossing, 14 ... warning light,
15 + 16 ... Sensitive part, 15 ... Emitter, 16 ... Receiver,
ADC: descending start point (alarm start point), BDC: descending end point (alarm end point),
Sa, Sb ... train detection section (detection length),
20: object detection device for descending level crossing,
21: Downward start point detection result acquisition unit, 22: Downhill end point detection result acquisition unit,
23: Downlink backup detection result acquisition unit, 24: Downlink object detection result acquisition unit,
25-30 ... downward object detection logic determination unit,
25: a descending alarm detecting section, 26: a predetermined time elapsed detecting section, 27: a level crossing approach detecting section,
28: railroad crossing alarm control unit, 29: railroad crossing alarm stop unit, 30: object discrimination unit

Claims (4)

鉄道の線路を横切る踏切から列車検知区間が外れる状態で前記線路に設定された警報始動点に係る列車検知を行う始動点用踏切制御子と、前記踏切の踏切道の幅員を列車検知区間に収める状態で前記線路に設定された警報終止点に係る列車検知を行う終止点用踏切制御子と、前記踏切の踏切道上における物体の有無を非接触で検知する感応部と、前記始動点用踏切制御子の始動点検知結果に基づいて前記警報始動点への列車進入を検知するとともに前記終止点用踏切制御子の終止点検知結果と前記感応部の物体検知結果とに基づいて前記踏切に係る列車進入および列車進出を検知する物体検知論理判定部とを備えた踏切保安装置であって、
前記物体検知論理判定部が、前記警報始動点への列車進入の検知から前記踏切への列車進入の検知までの間は前記感応部の検知した物体を障害物と判定し、前記踏切への列車進入の検知から前記踏切からの列車進出の検知までの間は前記感応部の検知した物体を列車と判定することにより、前記感応部にて検知された物体が障害物であるか列車であるかを弁別するようになっており、而も、前記警報始動点への列車進入の検知後に前記物体検知結果と前記終止点検知結果との双方が成立したことに応じて前記踏切への列車進入を検知し、前記踏切への列車進入の検知後に前記物体検知結果と前記終止点検知結果との双方が不成立に転じたことに応じて前記踏切からの列車進出を検知するようになっており、更に、前記物体検知結果が成立から不成立に転ずるときの状態遷移を列車進出確認時素の分だけ遅延させるようになっており、前記列車進出確認時素が、走行列車の台枠の下を前記感応部の検知媒体がくぐり抜ける隙間の最大値を潜り最大幅とし、走行列車の車輪のレールからの浮き上がりに起因して前記終止点用踏切制御子の検知結果が一時的に成立から不成立に転ずることがある列車走行速度の最小値を煽り最低速度として、前記潜り最大幅を前記煽り最低速度で除した両立確定時間以上になっている、
ことを特徴とする踏切保安装置。
A starting point railroad crossing controller for detecting a train related to an alarm starting point set on the track in a state where the train detecting section deviates from a railroad crossing crossing a railway track, and a width of a crossing road of the railroad crossing is included in the train detecting section. An end-point level crossing controller that detects a train related to an alarm end point set on the track in a state, a sensing unit that detects the presence or absence of an object on a level crossing of the level crossing in a non-contact manner, and the start-point level crossing control A train related to the level crossing is detected based on a result of detection of a starting point of a child and a train approaching to the alarm starting point, and based on an end point detection result of the end point level crossing controller and an object detection result of the sensing unit. A level crossing safety device including an object detection logic determination unit that detects entry and train advancement,
The object detection logic determination unit determines an object detected by the sensing unit as an obstacle during a period from the detection of the train entry to the alarm start point to the detection of the train entry to the railroad crossing, and the train to the railroad crossing. From the detection of the entry to the detection of the train entry from the level crossing, the object detected by the sensing unit is determined to be a train to determine whether the object detected by the sensing unit is an obstacle or a train. Also, after detecting the train entry to the alarm start point, the train entry to the railroad crossing in response to both the object detection result and the end point detection result are established Detecting, detecting both the object detection result and the end point detection result after the detection of the train entry to the railroad crossing turned to unsatisfied, to detect the train advance from the railroad crossing, further, From the result of the object detection The state transition at the time of turning to the establishment is to be delayed by the amount of the train advancement confirmation element, and the train advancement confirmation element is in the gap where the sensing medium of the sensitive part passes under the underframe of the traveling train. The maximum value is the maximum dive width, and the minimum value of the train traveling speed at which the detection result of the end point level crossing controller may temporarily change from being established to not being established due to the lifting of the wheels of the traveling train from the rail is taken as the maximum value. As the lowest speed, the diving maximum width is divided by the lowest speed, and is equal to or longer than the fixed time.
A railroad crossing safety device, characterized in that:
鉄道の線路を横切る踏切から列車検知区間が外れる状態で前記線路に設定された警報始動点に係る列車検知を行う始動点用踏切制御子から始動点検知結果を取得する手段と、前記踏切の踏切道の幅員を列車検知区間に収める状態で前記線路に設定された警報終止点に係る列車検知を行う終止点用踏切制御子から終止点検知結果を取得する手段と、前記踏切の踏切道上における物体の有無を非接触で検知する感応部から物体検知結果を取得する手段と、前記始動点検知結果と前記終止点検知結果と前記物体検知結果とに基づいて踏切警報の開始および停止を制御する手段とを備えた踏切物体検知装置であって、
前記警報始動点への列車進入の検知から前記踏切への列車進入の検知までの間は前記感応部の検知した物体を障害物と判定し、前記踏切への列車進入の検知から前記踏切からの列車進出の検知までの間は前記感応部の検知した物体を列車と判定することにより、前記感応部にて検知された物体が障害物であるか列車であるかを弁別するようになっており、而も、前記警報始動点への列車進入の検知後に前記物体検知結果と前記終止点検知結果との双方が成立したことに応じて前記踏切への列車進入を検知し、前記踏切への列車進入の検知後に前記物体検知結果と前記終止点検知結果との双方が不成立に転じたことに応じて前記踏切からの列車進出を検知するようになっており、更に、前記物体検知結果が成立から不成立に転ずるときの状態遷移を列車進出確認時素の分だけ遅延させるようになっており、前記列車進出確認時素が、走行列車の台枠の下を前記感応部の検知媒体がくぐり抜ける隙間の最大値を潜り最大幅とし、走行列車の車輪のレールからの浮き上がりに起因して前記終止点用踏切制御子の検知結果が一時的に成立から不成立に転ずることがある列車走行速度の最小値を煽り最低速度として、前記潜り最大幅を前記煽り最低速度で除した両立確定時間以上になっている、
ことを特徴とする踏切物体検知装置。
Means for obtaining a starting point detection result from a starting point level crossing controller for performing a train detection related to an alarm starting point set on the track in a state in which the train detection section deviates from a level crossing crossing a railway track, and a level crossing of the level crossing Means for acquiring an end point detection result from an end point crossing controller for performing a train detection relating to an alarm end point set on the track while keeping the width of the road in a train detection section, and an object on a crossing road of the crossing. Means for acquiring an object detection result from a sensing unit that detects the presence or absence of non-contact, and means for controlling start and stop of a level crossing alarm based on the start point detection result, the end point detection result, and the object detection result. A level crossing object detection device comprising:
From the detection of the train entry to the alarm starting point to the detection of the train entry to the railroad crossing, the object detected by the sensing unit is determined to be an obstacle, and from the detection of the train entry to the railroad crossing, Until the detection of the train advance, the object detected by the sensitive unit is determined to be a train, so that the object detected by the sensitive unit is discriminated as an obstacle or a train. Also, after detecting the train entry to the alarm start point, the train entry to the railroad crossing is detected in response to both the object detection result and the end point detection result being established, and the train to the railroad crossing is detected. After the detection of the entry, both the object detection result and the end point detection result are turned to non-establishment, so that it detects the train advance from the railroad crossing, and further, from the establishment of the object detection result State transition when turning into failure The train advancement confirmation element is delayed by the amount of the train advancement confirmation element, and the train advancement confirmation element is set to the maximum width of the gap through which the sensing medium of the sensing part passes under the underframe of the traveling train and the maximum width. The minimum value of the train traveling speed at which the detection result of the end point level crossing controller may temporarily change from being established to not being established due to the lifting of the wheels of the traveling train from the rails is referred to as the lowest speed. It is longer than the fixed time determined by dividing the maximum width by the above minimum speed,
A level crossing object detection device, characterized in that:
前記終止点用踏切制御子の列車検知区間に収まる状態で前記線路に設置されたATS利用の踏切バックアップ装置を備えており、前記物体検知論理判定部が、前記踏切への列車進入の検知に際して、前記警報始動点への列車進入の検知後に前記物体検知結果と前記終止点検知結果と前記踏切バックアップ装置の列車検知結果とが総て成立したことに応じて前記踏切への列車進入を検知するようになっていることを特徴とする請求項1記載の踏切保安装置。   An ATS-based railroad crossing backup device installed on the track in a state where the railroad crossing controller for the end point falls within the train detection section is provided, and the object detection logic determination unit detects a train entering the railroad crossing, After detecting the train entry to the alarm start point, the train entry to the railroad crossing is detected in response to the object detection result, the end point detection result, and the train detection result of the railroad crossing backup device being all established. The railroad crossing safety device according to claim 1, wherein: 前記終止点用踏切制御子の列車検知区間に収まる状態で前記線路に設置されたATS利用の踏切バックアップ装置の列車検知結果であるバックアップ検知結果を取得する手段を具備しており、前記踏切への列車進入の検知に際して、前記警報始動点への列車進入の検知後に前記物体検知結果と前記終止点検知結果と前記バックアップ検知結果とが総て成立したことに応じて前記踏切への列車進入を検知するようになっていることを特徴とする請求項2記載の踏切物体検知装置。   A means for acquiring a backup detection result which is a train detection result of an ATS-based railroad crossing backup device installed on the track in a state where the railroad crossing controller for the end point falls within a train detection section is provided. Upon detecting the train entry, after the detection of the train entry to the alarm start point, the train entry to the railroad crossing is detected in response to all of the object detection result, the end point detection result, and the backup detection result being established. The level crossing object detection device according to claim 2, wherein:
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