JP3410320B2 - Traffic light controller - Google Patents
Traffic light controllerInfo
- Publication number
- JP3410320B2 JP3410320B2 JP07142497A JP7142497A JP3410320B2 JP 3410320 B2 JP3410320 B2 JP 3410320B2 JP 07142497 A JP07142497 A JP 07142497A JP 7142497 A JP7142497 A JP 7142497A JP 3410320 B2 JP3410320 B2 JP 3410320B2
- Authority
- JP
- Japan
- Prior art keywords
- signal
- bulb
- power supply
- disconnection
- filaments
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Train Traffic Observation, Control, And Security (AREA)
Description
【発明の詳細な説明】
【０００１】
【発明の属する技術分野】本発明は、信号機制御装置に
係り、特に、鉄道信号の分野等で用いられる２重フィラ
メント型の信号電球を備えた信号機の信号機制御装置に
関する。
【０００２】
【従来の技術】鉄道信号の分野で用いられる色灯式信号
機は、フィラメントを２重に構成した信号電球が用いら
れていて、信号電球が滅灯することのないように配慮さ
れている。
【０００３】鉄道用の信号機においては、信号電球のフ
ィラメントの断芯を検出する検出手段を備えた信号機制
御装置が採用されている。この信号機制御装置は、２重
フィラメント（ダブルフィラメント）のうち、一方のフ
ィラメントが断芯したこと、すなわち、片断芯したこと
を電流の変化に基づいて検出できるように構成されてい
る。したがって、その検出信号に基づいて信号電球の交
換を行うことができる。
【０００４】
【発明が解決しようとする課題】しかしながら、上記従
来の信号機制御装置は、信号電球のフィラメントの断芯
を検出して信号電球の交換を効果的に行えるが、信号電
球が片断芯した場合、ケーブル抵抗（後述の図１のｒ参
照）による電圧降下が半分になるにもかかわらず、信号
電球に供給される電圧がそのままに保たれるために、残
りのフィラメントに加わる電圧が上昇し、その残りのフ
ィラメントの寿命が短くなって、信号電球の寿命が結果
的に本来の寿命よりも短くなり、信号電球交換に要する
時間が短縮されてしまうという不都合があった。
【０００５】そこで、本発明は、上記欠点を除去するた
めになされたものであって、信号電球の一方のフィラメ
ントが断芯しても、残りのフィラメントの寿命を短縮さ
せずに、信号交換の時間を十分に確保できるようにした
信号機制御装置を提供することにある。
【０００６】
【課題を解決するための手段】本発明に係る信号機制御
装置は、上記目的を達成するために、複数のフィラメン
トを有する信号電球の断芯状態を検出する断芯検出手段
と、前記信号電球に対して所定の電圧の電源を供給する
第１の電源、及びその第１の電源の電圧よりも低い所定
の電圧の電源を供給する第２の電源を有する電源供給手
段と、前記断芯検出手段が前記複数のフィラメントを有
する信号電球の中の一部のフィラメントの断芯状態を検
出したときに前記第１の電源から前記第２の電源に切換
える切換手段とを有することを特徴としている。
【０００７】
【発明の実施の形態】以下、本発明の実施の形態を図面
に基づいて説明する。図１は、一実施の形態に係る信号
機制御装置の概略構成図である。
【０００８】図中、Ｇは列車に対して進行現示を示す２
つのフィラメントｆ1 ，ｆ2 を有する信号電球、及びＲ
は列車に対して停止現示を示す２つのフィラメントｆ1
，ｆ2 を有する信号電球である。
【０００９】これら信号電球Ｇ，Ｒは、本発明の電源供
給手段を構成する交流電源ＥのトランスＴの２次側に接
続されていて、図示しない制御リレーの接点ＨＲ、及び
後述する断芯検出器リレー，の接点Ｒ1 ，Ｒ2 を介
して択一的に点灯されるように構成されている。
【００１０】図中、Ｄ1 は信号電球Ｇの断芯状態を検出
する断芯検出器、及びＤ2 は信号電球Ｒの断芯状態を検
出する断芯検出器であって、これら断芯検出器Ｄ1 ，Ｄ
2 は、本発明の断芯検出手段に該当している。そして、
共に、各信号電球Ｇ，Ｒにそれぞれ流れる電流状態の変
化から断芯を検出できるように構成されている。また、
各断芯検出器Ｄ1 ，Ｄ2 には、それぞれ断芯検出リレー
，が接続されていて、断芯を検出したときに落下
（ＯＦＦ）するように構成されている。
【００１１】なお、図中、ｒ，ｒ，ｒは、トランスＴの
２次側の信号電球Ｇ，Ｒに対する配線ケーブルのケーブ
ル抵抗値を表している。
【００１２】さて、各信号電球Ｇ，Ｒは、断芯していな
い状態において、トランスＴの２次側に誘起される所定
の電圧Ｖ1 （例えば２４Ｖ）が、各断芯検出器リレー
，の扛上（ＯＮ）接点Ｒ1 ，Ｒ2 を介してそれぞれ
印加されるように構成されている。
【００１３】また、各信号電球Ｇ，Ｒは、断芯検出器Ｄ
1 ，Ｄ2 が断芯を検出したとき、本発明の切換手段を構
成する各断芯検出リレー，の落下接点Ｒ1 ，Ｒ2 を
介して、上記所定の電圧Ｖ1 よりも小さい所定の電圧Ｖ
2 がそれぞれ印加されるように構成されている。すなわ
ち、この所定の電圧Ｖ1 よりも小さい所定の電圧Ｖ2
は、電圧Ｖ1 の出力端子の巻数よりも少ない巻数の出力
端子から電源が供給されるように構成されている。
【００１４】したがって、各信号電球Ｇ，Ｒは、例え
ば、一方のフィラメントｆ1 が断芯したとき、残りのフ
ィラメントｆ2 には、それまでの電圧Ｖ1 よりも低い電
圧Ｖ2がそれぞれ印加されるので、その残りのフィラメ
ントｆ2 の寿命を短縮させることがなく、信号電球の交
換時間を十分に確保することができる。
【００１５】なお、上述の例では、信号電球を鉄道信号
用としたが、道路に設置される交通信号機の信号灯器用
の電球やその他の２重フィラメントを有する電球に採用
することができる。
【００１６】
【発明の効果】本発明に係る信号機制御装置は、複数の
フィラメントを有する信号電球の断芯状態を検出する断
芯検出手段と、前記信号電球に対して所定の電圧の電源
を供給する第１の電源、及びその第１の電源の電圧より
も低い所定の電圧の電源を供給する第２の電源を有する
電源供給手段と、前記断芯検出手段が前記複数のフィラ
メントを有する信号電球の中の一部のフィラメントの断
芯状態を検出したときに前記第１の電源から前記第２の
電源に切換える切換手段とからなるので、残りのフィラ
メントの寿命を短縮させることがなく、信号電球の交換
時間を十分に確保することができる。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a traffic signal control device, and more particularly to a traffic signal device having a double filament type signal bulb used in the field of railway signals and the like. It relates to a control device. 2. Description of the Related Art A color light type traffic light used in the field of railway signals uses a signal light bulb having a double filament structure and is designed so that the signal light bulb does not go out. I have. [0003] In a traffic signal for railways, a signal control device provided with a detecting means for detecting a core break of a filament of a signal bulb is employed. The traffic signal control device is configured to be able to detect that one of the double filaments (double filament) is broken, that is, that one of the double filaments is broken, based on a change in current. Therefore, the signal bulb can be replaced based on the detection signal. [0004] However, the above-mentioned conventional signal control device can effectively replace the signal bulb by detecting the disconnection of the filament of the signal bulb. In this case, although the voltage drop due to the cable resistance (see r in FIG. 1 described later) is halved, the voltage supplied to the signal bulb is maintained as it is, so that the voltage applied to the remaining filaments increases. However, the life of the remaining filaments is shortened, and the life of the signal bulb is eventually shorter than the original life, and the time required for replacing the signal bulb is shortened. Accordingly, the present invention has been made to eliminate the above-mentioned drawbacks, and even if one of the filaments of a signal bulb is disconnected, the signal exchange of the signal bulb can be performed without shortening the life of the remaining filament. An object of the present invention is to provide a traffic light control device capable of sufficiently securing time. In order to achieve the above object, a traffic light control device according to the present invention includes a disconnection detecting means for detecting a disconnection state of a signal bulb having a plurality of filaments; Power supply means having a first power supply for supplying a power supply of a predetermined voltage to the signal bulb, and a second power supply for supplying a power supply of a predetermined voltage lower than the voltage of the first power supply; The core detecting means has the plurality of filaments.
And a switching means for switching from the first power supply to the second power supply when the disconnection state of some of the filaments in the signal bulb is detected. Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic configuration diagram of a traffic light control device according to one embodiment. In the figure, G indicates the progress indication for the train.
A signal bulb having two filaments f1, f2, and R
Is the two filaments f1 indicating the stop sign for the train
, F2. These signal bulbs G and R are connected to the secondary side of a transformer T of an AC power supply E constituting the power supply means of the present invention, and have a contact HR of a control relay (not shown) and a disconnection detection which will be described later. It is configured to be selectively turned on via the contacts R1 and R2 of the relay. In the drawing, D1 is a disconnection detector for detecting the disconnection state of the signal bulb G, and D2 is a disconnection detector for detecting the disconnection state of the signal bulb R. , D
Reference numeral 2 corresponds to a core disconnection detecting means of the present invention. And
Both are configured so that the disconnection can be detected from a change in the state of the current flowing through each of the signal bulbs G and R. Also,
A disconnection detection relay is connected to each of the disconnection detectors D1 and D2, and is configured to drop (OFF) when the disconnection is detected. In the figure, r, r, and r represent the cable resistance of the wiring cable for the signal bulbs G and R on the secondary side of the transformer T. In the state where the signal bulbs G and R are not disconnected, a predetermined voltage V1 (for example, 24 V) induced on the secondary side of the transformer T is applied to each of the disconnection detector relays. It is configured to be applied via upper (ON) contacts R1 and R2, respectively. Further, each of the signal bulbs G and R is provided with a disconnection detector D.
When D1, D2 detects a disconnection, a predetermined voltage V1 smaller than the predetermined voltage V1 is applied via the falling contacts R1, R2 of the respective disconnection detection relays constituting the switching means of the present invention.
2 are respectively applied. That is, the predetermined voltage V2 smaller than the predetermined voltage V1
Is configured such that power is supplied from an output terminal having a smaller number of turns than the number of turns of the output terminal of the voltage V1. Therefore, in each of the signal bulbs G and R, for example, when one filament f1 is broken, a voltage V2 lower than the voltage V1 is applied to the remaining filament f2. The replacement time of the signal bulb can be sufficiently secured without shortening the life of the remaining filament f2. In the above-described example, the signal bulb is used for a railway signal. However, the invention can be applied to a bulb for a signal light of a traffic signal installed on a road or another bulb having a double filament. According to the present invention, there is provided a traffic signal control device for detecting a disconnection state of a signal bulb having a plurality of filaments, and supplying power of a predetermined voltage to the signal bulb. a first power supply, and a power supply means having a second power source for supplying power to the predetermined voltage lower than a first voltage of the power supply, the cross-sectional core detecting means said plurality of filler that
A switching means for switching from the first power supply to the second power supply when detecting a broken state of a part of the filaments in the signal bulb having the above-mentioned arrangement, thereby shortening the life of the remaining filaments. Therefore, it is possible to sufficiently secure the replacement time of the signal bulb.
【図面の簡単な説明】
【図１】本発明の一実施の形態に係る信号制御装置の概
略構成図である。
【符号の説明】
Ｅ 交流電源
Ｔ トランス
， 断芯検出器リレー
Ｇ，Ｒ 信号電球
Ｄ1 ，Ｄ2 断芯検出器
ｆ1 ，ｆ2 フィラメント
ｒ ケーブル抵抗BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic configuration diagram of a signal control device according to an embodiment of the present invention. [Description of Signs] E AC power supply T Transformer, disconnection detector relay G, R signal bulb D1, D2 disconnection detector f1, f2 filament r cable resistance
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平８−330087（ＪＰ，Ａ) 特開 平５−8729（ＪＰ，Ａ) 特開 昭58−108695（ＪＰ，Ａ) 特開 平３−257793（ＪＰ，Ａ) 特開 昭61−51300（ＪＰ，Ａ) 実開 昭56−167498（ＪＰ，Ｕ) 特公 昭51−3478（ＪＰ，Ｂ１) (58)調査した分野(Int.Cl.7，ＤＢ名) B61L 5/12 - 5/18 G08G 1/095 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-8-330087 (JP, A) JP-A-5-8729 (JP, A) JP-A-58-108695 (JP, A) JP-A-3-3 257793 (JP, A) JP-A-61-51300 (JP, A) JP-A-56-167498 (JP, U) JP-B-51-3478 (JP, B1) 7 , DB name) B61L 5/12-5/18 G08G 1/095
Claims (1)
断芯状態を検出する断芯検出手段と、 前記信号電球に対して所定の電圧の電源を供給する第１
の電源、及びその第１の電源の電圧よりも低い所定の電
圧の電源を供給する第２の電源を有する電源供給手段
と、 前記断芯検出手段が前記複数のフィラメントを有する信
号電球の中の一部のフィラメントの断芯状態を検出した
ときに前記第１の電源から前記第２の電源に切換える切
換手段と、 を有することを特徴とする信号機制御装置。(57) [Claim 1] Disconnection detecting means for detecting a disconnection state of a signal bulb having a plurality of filaments, and a first supplying a power of a predetermined voltage to the signal bulb.
Power, and a power supply means having a second power source for supplying power to the predetermined voltage lower than the first voltage of the power supply, signal that the sectional cores detecting means comprises a plurality of filaments
A switching means for switching from the first power supply to the second power supply when detecting a core disconnection state of a part of the filament in the light bulb .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07142497A JP3410320B2 (en) | 1997-03-25 | 1997-03-25 | Traffic light controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07142497A JP3410320B2 (en) | 1997-03-25 | 1997-03-25 | Traffic light controller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10264815A JPH10264815A (en) | 1998-10-06 |
| JP3410320B2 true JP3410320B2 (en) | 2003-05-26 |
Family
ID=13460125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP07142497A Expired - Fee Related JP3410320B2 (en) | 1997-03-25 | 1997-03-25 | Traffic light controller |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3410320B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4762300B2 (en) * | 2008-12-12 | 2011-08-31 | 株式会社京三製作所 | Traffic light control system |
-
1997
- 1997-03-25 JP JP07142497A patent/JP3410320B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH10264815A (en) | 1998-10-06 |
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