JPH1159419A - Train approach warning device - Google Patents
Train approach warning deviceInfo
- Publication number
- JPH1159419A JPH1159419A JP21764597A JP21764597A JPH1159419A JP H1159419 A JPH1159419 A JP H1159419A JP 21764597 A JP21764597 A JP 21764597A JP 21764597 A JP21764597 A JP 21764597A JP H1159419 A JPH1159419 A JP H1159419A
- Authority
- JP
- Japan
- Prior art keywords
- train
- gps
- receiver
- gps receiver
- construction site
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Landscapes
- Train Traffic Observation, Control, And Security (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】この発明は鉄道用線路工事に
おいて、線路工事現場へ列車が接近すると警報を発生す
る装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for generating an alarm when a train approaches a track construction site in railway track construction.
【0002】[0002]
【従来の技術】従来においては、この種の装置として適
切なものがなく、監視用の人間が常に目をくばり、列車
接近を視認する度に、工事担当者に知らせていた。2. Description of the Related Art Conventionally, there has been no suitable device of this kind, and a person in charge of monitoring always alerts a construction worker every time he or she sees a train approaching.
【0003】[0003]
【発明が解決しようとする課題】従来の列車接近検知は
人間の目に頼っていたため、時には列車接近の発見が遅
れたりする危険性があった。また専用の見張り人間を必
要とするため、省力化ができない欠点があった。列車に
無線送信機を取付け、単なる警報用の電波を放射し続
け、工事現場で、その電波の受信機を設け、列車が接近
し、その警報用電波がある程度以上のレベルで受信され
ると、列車が接近したと判断して警報を発生させる方法
が考えられる。Since conventional train approach detection relies on human eyes, there is a danger that the discovery of train approach may be delayed at times. In addition, there is a drawback in that labor cannot be saved because a dedicated lookout person is required. Attach a radio transmitter to the train, continue to emit a mere warning radio wave, install a receiver of the radio wave at the construction site, when the train approaches and the radio wave for the warning is received at a certain level or more, A method of generating a warning by judging that the train has approached can be considered.
【0004】しかしこの方法では地形により電波の到達
距離が著しく異なり、線路工事の移動に伴い、列車の近
接距離を正しく把握しつづけることが困難である。GP
S受信機により複数のGPS衛星よりの電波を受信して
その受信機の位置を測定する技術が実用されている。し
かし通常のGPS受信機においては、数十m〜数百mの
測定位置誤差をもつことが知られている。この誤差を小
さくするために差動(デイファレンシャル)GPSが実
用化されている。これは、既知の位置において、GPS
受信機により位置測定を行い、その測定位置の誤差情報
を、例えば放送し、この近くの移動局でGPS受信機よ
り同一衛星を利用した測定位置を、前記放送された誤差
情報により補正して、より精度の高い位置情報を得るも
のである。これは前記既知位置と、移動局の位置との距
離が、その測定衛星までの距離に比べ十分に小さい場合
は、2つの測定位置における測定誤差は実質的に等しい
と考えられることに基づくものである。However, in this method, the reach of radio waves varies significantly depending on the terrain, and it is difficult to keep track of the approaching distance of the train as the track construction moves. GP
A technique of receiving radio waves from a plurality of GPS satellites with an S receiver and measuring the position of the receiver has been put to practical use. However, it is known that an ordinary GPS receiver has a measurement position error of several tens of meters to several hundreds of meters. In order to reduce this error, differential GPS has been put to practical use. This is because at a known location, the GPS
A position measurement is performed by a receiver, error information of the measured position is broadcast, for example, and a measurement position using the same satellite from a GPS receiver at a mobile station near this is corrected by the broadcasted error information, It is intended to obtain more accurate position information. This is based on the fact that if the distance between the known position and the position of the mobile station is sufficiently smaller than the distance to the measurement satellite, the measurement errors at the two measurement positions are considered to be substantially equal. is there.
【0005】この発明の目的はGPSによる位置測定を
利用して、自動的に列車の接近を検出して警報を発生す
る装置を提供することにある。It is an object of the present invention to provide an apparatus for automatically detecting the approach of a train and generating an alarm by utilizing position measurement by GPS.
【0006】[0006]
【課題を解決するための手段】この発明によれば、列車
に第1GPS受信機が設けられ、その第1GPS受信機
による測定位置情報が無線送信機により送信され、一方
線路工事現場に第2GPS受信機と、前記無線送信機よ
りの送信位置情報を受信する受信手段が設けられ、第2
GPS受信機により測定された位置と、受信手段により
受信された位置とから列車と工事現場との相対距離が演
算手段により演算され、その相対距離が所定値以下にな
ると警報が警報器より発生される。According to the present invention, a first GPS receiver is provided on a train, and position information measured by the first GPS receiver is transmitted by a wireless transmitter, while a second GPS receiver is provided at a track construction site. And a receiving means for receiving transmission position information from the wireless transmitter.
The relative distance between the train and the construction site is calculated by the calculating means from the position measured by the GPS receiver and the position received by the receiving means, and an alarm is issued by the alarm when the relative distance becomes less than a predetermined value. You.
【0007】[0007]
【発明の実施の形態】図1にこの発明の実施例を示す。
列車11にGPS受信機12が設けられ、GPS受信機
12は通常は最も電波の強い少なくとも2つのGPS衛
星13からのGPS電波を受信して位置測定を行う。こ
の測定された位置情報を無線送信機14により送信され
る。FIG. 1 shows an embodiment of the present invention.
A GPS receiver 12 is provided on the train 11, and the GPS receiver 12 normally receives GPS radio waves from at least two GPS satellites 13 having the strongest radio waves to perform position measurement. The measured position information is transmitted by the wireless transmitter 14.
【0008】一方線路工事現場16において、GPS受
信機17と、送信機14の送信電波を受信する受信機1
8とが設けられる。GPS受信機17は工事現場16と
列車とが比較的近い状態においては、GPS受信機12
が受信しているGPS衛星13と、同一組のGPS衛星
13からのGPS電波を受信して位置測定を行う。この
GPS受信機17で測定された位置と、受信機18で受
信された列車11の位置情報とから、列車11と工事現
場16との相対距離が差分演算手段19で演算され、そ
の相対距離が設定値以下になると警報器21から警報、
例えばブザーが発生される。On the other hand, at a track construction site 16, a GPS receiver 17 and a receiver 1 for receiving a radio wave transmitted from the transmitter 14 are provided.
8 are provided. When the construction site 16 and the train are relatively close to each other, the GPS receiver 17
Receives GPS radio waves from the same set of GPS satellites 13 as the GPS satellites 13 that are receiving the GPS satellites 13 and performs position measurement. From the position measured by the GPS receiver 17 and the position information of the train 11 received by the receiver 18, the relative distance between the train 11 and the construction site 16 is calculated by the difference calculating means 19, and the relative distance is calculated. When the value falls below the set value, an alarm is issued from the alarm 21,
For example, a buzzer is generated.
【0009】この場合、GPS受信機12と17は、共
に同一組のGPS衛星13の組のGPS電波を利用して
位置測定を行い、かつこれらからGPS衛星までの距離
と対し、列車11と工事現場16との距離が著しく小さ
いため、GPS受信機12と17での各測定位置誤差は
実質的に同一値となり、これら位置の差分、つまり相対
距離を求めることにより、その位置誤差は実質的に除去
され、極めて高い精度で相対距離が得られる。従って、
列車11の接近を確実、かつ適切に検出警報することが
できる。In this case, both the GPS receivers 12 and 17 measure the position using the GPS radio waves of the same set of GPS satellites 13 and, based on the distance from these to the GPS satellites, determine the position of the train 11 and the construction work. Since the distance from the site 16 is extremely small, the measured position errors at the GPS receivers 12 and 17 have substantially the same value. By calculating the difference between these positions, that is, the relative distance, the position error is substantially reduced. Relative distance is obtained with very high accuracy. Therefore,
The approach and approach of the train 11 can be detected reliably and appropriately.
【0010】[0010]
【発明の効果】以上述べたようにこの発明によれば、列
車の接近を適切、かつ確実に警報することができ、省力
化と、誤認にもとづく危険の発生もない。As described above, according to the present invention, the approach of a train can be appropriately and reliably warned, and labor is saved, and there is no danger due to erroneous recognition.
【図1】この発明の実施例を示すブロック図。FIG. 1 is a block diagram showing an embodiment of the present invention.
Claims (1)
した位置情報を送信する送信機と、 線路工事現場に設けられた第2GPS受信機と、 上記線路工事現場に設けられ、上記送信機よりの送信さ
れた位置情報を受信する受信手段と、 上記受信手段により受信された位置情報と、上記第2G
PS受信機により測定された位置情報とにより上記列車
と上記線路工事現場との間の相対距離を求める演算手段
と、 上記相対距離が所定値以下になると警報を発生する警報
器とを備える列車接近警報装置。1. A first GPS receiver provided on a train, a transmitter provided on the train for transmitting position information measured by the first GPS receiver, and a second GPS receiver provided on a track construction site Receiving means provided at the track construction site and receiving the position information transmitted from the transmitter; position information received by the receiving means;
A train approaching means comprising: calculating means for determining a relative distance between the train and the track construction site based on position information measured by a PS receiver; and an alarm device for generating an alarm when the relative distance becomes a predetermined value or less. Alarm device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21764597A JPH1159419A (en) | 1997-08-12 | 1997-08-12 | Train approach warning device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21764597A JPH1159419A (en) | 1997-08-12 | 1997-08-12 | Train approach warning device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH1159419A true JPH1159419A (en) | 1999-03-02 |
Family
ID=16707513
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP21764597A Withdrawn JPH1159419A (en) | 1997-08-12 | 1997-08-12 | Train approach warning device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH1159419A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001347947A (en) * | 2000-06-09 | 2001-12-18 | Kawasaki Steel Corp | Railway vehicle position recognizing method |
JP2005189141A (en) * | 2003-12-26 | 2005-07-14 | Railway Technical Res Inst | Gps measuring method of moving body position and its system |
KR100764007B1 (en) | 2006-03-23 | 2007-10-09 | 박종국 | Worker security system using a warning light of motor car |
US7769544B2 (en) | 2001-05-07 | 2010-08-03 | Ansaldo Sts Usa, Inc. | Autonomous vehicle railroad crossing warning system |
EP2226645A1 (en) | 2009-03-05 | 2010-09-08 | NEC Corporation | Information notifying apparatus, mobile apparatus, information notifying system, information notifying method, message outputting method, information notification control program and mobile apparatus control program |
CN104608802A (en) * | 2015-02-11 | 2015-05-13 | 济南三鼎电气有限责任公司 | Automatic train approaching alarm system of railway shunting yard |
CN105564464A (en) * | 2016-02-02 | 2016-05-11 | 北京飞鸿云际科技有限公司 | Train approach pre-warning system based on personnel positions and pre-warning method thereof |
CN111232023A (en) * | 2020-01-16 | 2020-06-05 | 中铁一局集团有限公司 | Track engineering construction and driving safety management comprehensive intelligent control system |
-
1997
- 1997-08-12 JP JP21764597A patent/JPH1159419A/en not_active Withdrawn
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001347947A (en) * | 2000-06-09 | 2001-12-18 | Kawasaki Steel Corp | Railway vehicle position recognizing method |
US7769544B2 (en) | 2001-05-07 | 2010-08-03 | Ansaldo Sts Usa, Inc. | Autonomous vehicle railroad crossing warning system |
JP2005189141A (en) * | 2003-12-26 | 2005-07-14 | Railway Technical Res Inst | Gps measuring method of moving body position and its system |
KR100764007B1 (en) | 2006-03-23 | 2007-10-09 | 박종국 | Worker security system using a warning light of motor car |
EP2226645A1 (en) | 2009-03-05 | 2010-09-08 | NEC Corporation | Information notifying apparatus, mobile apparatus, information notifying system, information notifying method, message outputting method, information notification control program and mobile apparatus control program |
CN104608802A (en) * | 2015-02-11 | 2015-05-13 | 济南三鼎电气有限责任公司 | Automatic train approaching alarm system of railway shunting yard |
CN105564464A (en) * | 2016-02-02 | 2016-05-11 | 北京飞鸿云际科技有限公司 | Train approach pre-warning system based on personnel positions and pre-warning method thereof |
CN111232023A (en) * | 2020-01-16 | 2020-06-05 | 中铁一局集团有限公司 | Track engineering construction and driving safety management comprehensive intelligent control system |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20041102 |