KR101583707B1 - Accurate train location detection system using stagger information of the overhead contact lines - Google Patents

Abstract

The present invention relates to a high-precision train position detection system using catenary deviations information, wherein laser light is irradiated from a train roof to a catenary, the reflected light is detected to measure the deviation value of the catenary, And the length of each span is calculated by dividing the total length of the meteorological supporter location information and the span length arrangement / configuration, or overlap period (the total length of the meteorological support 2 And the information on the location of the train in the real time.
According to the present invention as described above, the position of the electric cable support does not change during the lifetime of the railway line, and the electric line support is maintained at a constant interval It is possible to provide an accurate train position detection system in which precision of less than 1 m is ensured because the information of the position of the support line of the electric cable carrier possessed by the railway operator has accurate data up to 1m unit.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a train position detection system,

The present invention relates to a high-precision train position detection system using catenary deviations information, and it is noted that a catenary installed along a line is deviated at regular intervals, so laser light is irradiated from a train roof to a catenary line The measured deviation value is compared with the position information of the electric line support (pole) that the railway operator has already completed for all the electrified sections by detecting the reflected light and detecting the deviation value of the electric line. And to a technique for finding a location in real time.

Railway position detection technology has been developed mainly in the field of train control, which is mainly used for train movement and speed control. In the field of train control, the position detection of trains is used for the purpose of protecting trains to prevent collision of trains by using track circuits. Speed detection is performed by using wheel sensors such as tachometer to control the speed and travel distance of trains. It is used for the purpose.

In order to improve the operating density and increase the operational efficiency of the train control system, the RFID system, Doppler radar, GPS, and satellite navigation system are applied as the terrestrial train control system is developed as a train-based train control system. .

Korean Patent No. 1068477 discloses a technique in which a detecting vehicle for detecting a catenary line identifies a movable bracket on a catenary facility during high-speed traveling and recognizes the position of the pole.

Korean Patent No. 0712418 discloses a technique of attaching a tag for recording unique information about each pole supporting a catenary and detecting the pole unique information from each tag using a detection vehicle Lt; / RTI >

Korean Patent No. 0824444 (conversion system and method for conversion of electric wire measurement data of electric cable) is installed in a detection car running along the electric wire to detect the electric wire information, and the RFID tag attached to the electric wire supporting the electric wire A car is installed in the vehicle to read the pole information data from the RFID tag and to link the pole detection section and the measured pole information to each other so that they can be read based on the position of the pole.

However, the above-mentioned prior patents are disadvantageous from the viewpoint of economical efficiency because installation costs are expensive and maintenance is required periodically since equipment is installed on the side of a track (ground).

In addition, although the conventional method of using the RFID as the position detection method of the train is mainly used, since the RFID is a method of detecting by radio, the principle of approaching and passing away from the installed RFID side, Errors are inevitably involved due to limitations that can not be clearly defined, and errors of more than 5 meters are generally generated.

The prior patents as described above can be used to detect the position of the support by continuously monitoring the deviations of the present invention to derive the vertices of the deviations and to compare them with the previous span length data or to characterize the specific span length, The principle and the concept are fundamentally different from the constitution of deriving the position of the support by using it.

SUMMARY OF THE INVENTION The present invention has been conceived to solve the problems as described above, and it is an object of the present invention to provide a railway control system capable of detecting laser light from a train roof, detecting reflected light, The present invention provides a high-precision train position detection system that utilizes the principle of finding the current position of a current train in real time by comparing it with position information of an electric line support (electric pole) completed by the operator.

In order to accomplish the above object, there is provided a high-precision train position detection system using the line sensor information of a train according to the present invention, wherein laser light is irradiated to a train line from a train roof, reflected light is detected to measure a deviation value of the line, The lengths of the vertexes and the respective spans are calculated based on the position information and the span length arrangement / configuration of the pre-existing line support information for all the electrified sections, (Two existent line exist) information to derive the self position of the train in progress in real time.

According to the present invention as described above, the position of the electric cable support does not change during the lifetime of the railway line, and the electric line support is maintained at a constant interval It is possible to provide an accurate train position detection system in which precision of less than 1 m is ensured because the information of the position of the support line of the electric cable carrier possessed by the railway operator has accurate data up to 1m unit.

In addition, according to the present invention, the conventional systems need to install the RFID, reflector or transponder at predetermined intervals on the side of the line, but by using the pre-installed electric cable, The system can be easily configured at a cost.

Also, according to the present invention, unlike the prior art in which a reflector is attached to a pole of a catenary and a light is reflected to read the reflected light and the pole position is sensed, the pantograph is always moved , The reflection of the laser light is good, and there is no need for maintenance work to clean the wire.

According to the present invention, unlike the conventional RFID system in which an error of 5 m or more occurs, the vertex of the catenary deviations is derived and map information (map is based on data obtained by measuring all data) Thereby providing an accurate position detection with an error of less than 1 m.

Fig. 1 is a diagram showing that a catenary deviations are hypothesized. Fig.
BACKGROUND OF THE INVENTION 1. Field of the Invention [0001]
3 is a block diagram showing a high-precision train position detection system using the meteorological line deviation information according to the present invention.

Specific features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings. Prior to this, terms and words used in the present specification and claims are to be interpreted in accordance with the technical idea of the present invention based on the principle that the inventor can properly define the concept of the term in order to explain his invention in the best way. It should be interpreted in terms of meaning and concept. It is to be noted that the detailed description of known functions and constructions related to the present invention is omitted when it is determined that the gist of the present invention may be unnecessarily blurred.

First, FIG. 1 is a diagram showing that a catenary deviations are hypothesized.

As shown in Fig. 1, a stagger (transverse zigzag displacement) is given to a publicly installed line along a track in an electric railway, which is shifted from + to - at the point where the support is located, or from - to + To form a bent apex.

The present invention relates to a high precision train position detection system that uses a train line deviation information according to the present invention. The system detects laser light from a train roof, detects reflected light, measures a deviation value of the train line, The measured deviation values are continuously collected to derive the vertex (the position of the catenary support) and the length of each span.

In addition, the vertex and the length of each span are matched with the information of the generated electric line support position information and the span length arrangement / configuration or the overlap interval (there are two electric lines) for all the electrification sections, Derive in real time.

2, the high-precision train position detection system S using the meteorological line deviation information according to the present invention includes a meteorological line deviation measurement unit 10, a meteorological line deviation extraction arithmetic unit 20, (30).

First, a catenary deviating measurement unit 10 is installed on a train roof, irradiates a laser light with a catenary, detects reflected light, and measures the deviation of the catenary in real time.

Further, the catenary line deviation extraction calculation unit 20 derives a vertex from the meteorological deviation data measured by the meteorail line deviation measurement unit 10, and extracts the position and the span length information of the support.

In addition, the line support object position information DB 21 of the line analysis unit 20 stores the generated line support information, the span length arrangement / configuration, or the overlap interval (there are two line transmission lines).

The position search operation control unit 30 reads the vertex position (the position of the post line support) and the length of each span derived by the post line removal extraction operation unit 20, the position information of the post line support index indexed from the post line support position information DB 21, The span length arrangement / configuration information is matched to generate the magnetic location information of the train in real time.

FIG. 3 is a block diagram of another embodiment of a high-precision train position detection system (S) using the catenary line deviation information according to the present invention.

3, a catenary deviating measurement unit 10, a catenary deviation extracting calculation unit 20, a primary train positioning calculation unit 40, and a GPS combined positional search calculation control unit 50 are configured.

First, a catenary deviating measurement unit 10 is installed on a train roof, irradiates a laser light with a catenary, detects reflected light, and measures the deviation of the catenary in real time.

Further, the catenary line deviation extraction calculation unit 20 derives a vertex from the meteorological deviation data measured by the meteorail line deviation measurement unit 10, and extracts the position and the span length information of the support.

In addition, the line support object position information DB 21 of the line analysis unit 20 stores the generated line support information, the span length arrangement / configuration, or the overlap interval (there are two line transmission lines).

Also, the primary train position calculation unit 40 derives the train position from the GPS information received from the GPS receiver mounted on the train. At this time, the train position can be derived based on the accumulated data of the speed (Tacho) signal mounted on the train.

Then, the GPS combined position search calculation control unit 50 reduces the self position range of the train to be derived based on the train position derived by the primary train position determination calculation unit 40, and searches, confirms, Thereby generating self position information.

As described above, the present invention of irradiating a laser beam with a catenary line and detecting the reflected light to detect the self-position of the train through the derived deviation value of the catenary line is characterized in that the position of the catenary line- Precision is guaranteed within at least 1m since the position information of the support line of the railway operator has accurate data up to 1m unit.

In addition, as long as the catenary line is not cut off, the pantograph is always moved and maintenance is not required, and the measuring device capable of deriving the catenary deviation can be extended up to 500 km / h. It can be easily put to practical use.

While the present invention has been particularly shown and described with reference to preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. It will be appreciated by those skilled in the art that numerous changes and modifications may be made without departing from the invention. And all such modifications and changes as fall within the scope of the present invention are therefore to be regarded as being within the scope of the present invention.

S: High-precision train position detection system using line information
10: catenary deviation measuring unit 20: catenary deviation extracting calculation unit
21: position information of the electric carrier support DB 30: position search operation control unit
40: primary train position determination calculation unit 50: GPS combination position search calculation control unit

Claims (4)

In a train position detection system,
The laser beam is irradiated from the roof of the train to the laser beam, the reflected light is detected to measure the deviation value of the catenary, and the measured deviation value is continuously collected to derive the vertex (position of the catenary support) and the length of each span,
And the lengths of the vertexes and the respective spans are matched with the previously generated position information and span length arrangement / configuration information of all the electrified sections to derive the self position of the ongoing train in real time. High Precision Train Position Detection System. The method according to claim 1,
A catenary deviation measuring unit 10 installed on a roof of a train, irradiating a laser beam with a catenary, detecting reflected light, and measuring the deviation of the catenary in real time;
A catenary deviation extracting and calculating unit 20 for deriving a vertex from the catenary deviation data measured by the catenary line deviation measuring unit 10 and extracting the position and the span length information of the support; And
(The position of the electric line support) and the length of each span derived by the electric-meteor-wire-deviation extraction calculation unit 20, the previously stored electric-line-carrier position information, and the span length arrangement / configuration information And a position detection operation control unit (30) for detecting the position of the vehicle. 3. The method of claim 2,
The catenary deviation extracting and calculating section (20)
Further comprising an electric line post support position information DB (21) for storing the generated electric line post support position information and span length arrangement / configuration, or an overlap interval (two existing transmission lines) information. High Precision Train Position Detection System Using Deviation Information. The method according to claim 1,
A primary train position calculation unit (40) for deriving a train position through GPS information received from a GPS receiver mounted on the train; And
A GPS cooperative position search for generating the self position information of the train by searching, confirming and correcting the self position search range of the train to be derived based on the train position derived by the primary train position finding calculation unit 40 Further comprising: an arithmetic and control unit (50) for estimating the position of the train.

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