JP2001347947A - Railway vehicle position recognizing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To recognize adjoining lines of an important railway line in each plant in steel works and to grasp the railway vehicle position at real rime in a control station. SOLUTION: A GPS device 20, a radio transmitter, and a vehicle identification sensor 32 are installed on the railway vehicle 10, while a radio receiver 40 receiving the information from the GPS device and the sensor 32 and a personal computer 56 displaying the railway vehicle position are installed on the ground. A railway vehicle position recognized by the GPS device 20 and railway vehicle position information received by the radio transmitter 40 are combinedly used.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for recognizing a position of a railway vehicle in a steelworks by a control station on the ground.

[0002]

2. Description of the Related Art Generally, a railway vehicle in a steelworks has a vehicle identification sensor including a wireless transmission device installed on each railway vehicle, and a wireless reception device for receiving data from the sensor installed on the ground. Then, by processing the vehicle discrimination data when the vehicle passes near the wireless receiver by a computer, the inside of the steelworks is divided into several zones, and the position of each railway vehicle is recognized on the ground.

[0003]

However, in this method, although it is possible to know in which zone each railway vehicle is located, it is not possible to grasp the exact position of the railway vehicle in real time. Problems, such as a decrease in the turnover rate of the steel, and a decrease in the hot metal temperature due to this.

[0004] In order to make the zone smaller and recognize the position of the railcar with higher accuracy, it is necessary to install a large number of wireless receivers for receiving the vehicle discrimination data from the sensors on the ground, which increases the installation cost. I do.

On the other hand, GPS (global positioning system) widely used in the field of car navigation and the like.
m), it is conceivable to recognize the position. However, in steelworks with many large buildings such as blast furnaces, radio waves from GPS satellites are affected by disturbance of ground-reflected waves due to multiple reflections by structures. However, accurate position detection cannot be performed only by position data recognizable by the vehicle, and it is particularly difficult to determine the vehicle position between adjacent tracks.

Japanese Patent Application Laid-Open No. H11-134,025 discloses a GPS mobile station installed on a mobile body such as an automatic transport trolley for transporting containers and a GPS mobile station installed separately from the mobile body. According to the position information by the fixed station, when controlling the traveling of the mobile body, it is described that the delay of the position information is corrected and the current position of the mobile body is measured. Not only is it necessary and the configuration is complicated, but also it may not be possible to obtain sufficient accuracy for use in railway vehicles in steelworks.

Further, Japanese Patent Application Laid-Open Nos. Hei 6-34743 and 5-2
In 73329, a detector in which the installation positions of the ground marker and the ATS grounding element are stored in advance calculates the error of the measurement position of the GPS receiver using the position output when the marker and the ATS grounding element are detected, and calculates the error. It is described that the GPS measurement position is corrected thereafter, but under the influence of multiple reflections, the position fluctuates every one second within a radius of about 100 m, and it can be corrected by correction. Rather, it was not enough to use it for recognizing the location of railcars in steelworks.

Japanese Patent Application Laid-Open No. Hei 8-86853 discloses that a self-position information obtained from an output of a GPS receiver or a speed detecting device is transmitted from an antenna by a transmitting unit of a radio device.
The receiving unit of the wireless device receives the position information of the other mobile unit transmitted from the other mobile unit, and based on the self-position information and the position information of the other mobile unit, the own mobile unit and the other mobile unit Although it is described that a relative distance is obtained and displayed on an alarm display unit, it does not detect the absolute position of the moving body with high accuracy.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned conventional problems, and it is possible to distinguish between important railway lines adjacent to railway lines in each plant in a steelworks and to determine the position of a railway vehicle in real time. The task is to be able to be grasped by a ground control station.

[0010]

SUMMARY OF THE INVENTION The present invention relates to a method for recognizing a position of a railroad vehicle in a steelworks by a ground control station.
A wireless transmission device, a sensor for determining a vehicle, a wireless reception device for receiving information from the GPS device and the sensor, and a display device for displaying a position of a railway vehicle on the ground; By using a combination of the railcar position that can be recognized by the system and the railcar position information received by wireless receivers installed in various places in the steelworks, it is possible to distinguish between adjacent tracks of the railroad track and to determine the railcar position in real time The above problem was solved by making it possible for the control station to grasp the situation.

According to the present invention, the position of a railway vehicle is recognized in real time by a GPS device, and information from a vehicle discriminating sensor input to a wireless receiver installed on the ground is combined with the information to be used for each. By performing vehicle discrimination at the installation point of the wireless receiving device, it is possible to correct even if the GPS device displays a position having an error due to multiple reflection of satellite radio waves or the like. Therefore, it becomes possible to distinguish between important railway tracks, which are important in each plant in the steelworks.

[0012]

Embodiments of the present invention will be described below in detail with reference to the drawings.

This embodiment, as shown in FIG. 1, has a GPS device 20 installed in a railway vehicle 10 such as a topped car.
Wireless transmission device 26 for transmitting GPS positioning data, transmitter 2
8, wireless transmission antenna 30, and vehicle identification sensor 3
2, a radio receiver 40 for receiving information from the vehicle discriminating sensor 32, which is installed at various places in the steelworks on the ground, and a G, which is also installed in a control station 50 on the ground.
Wireless positioning device 52 for PS positioning data, position calculation device 5
4 and a personal computer 56 including a display device.

The GPS device 20 has a GPS receiving antenna 22 for receiving a GPS radio wave from a GPS satellite 8.
And a GPS reception and position calculator 24.

The radio receiving device 40 includes a radio receiving antenna 42 and a radio receiver 44.

The position calculating device 54 uses a combination of the railcar position recognized by the GPS device 20 and the railcar position information received by the radio receivers 40 installed in various places in the steelworks, and The current position is obtained and displayed on the display screen of the personal computer 56, for example.

In the above-described embodiment, the present invention has been applied to the detection of the position of a topped car, but the application of the present invention is not limited to this.

[0018]

According to the present invention, it is possible to discriminate between railway tracks adjacent to each other, which is important in each plant in a steelworks, and to grasp the position of a railway vehicle in real time by a ground control station. became.

When the test operation was started in August 1999, the turnover of the torpedo car was improved, and the drop in hot metal temperature upon arrival at the steelmaking plant could be reduced by 3 ° C. Also, no failure occurred in adjacent line identification.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing a configuration of an embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 8 GPS satellite 10 Railway car 20 GPS device 22 GPS receiving antenna 24 GPS receiver 26 Wireless transmitting device 28 Transmitter 30 Wireless transmitting antenna 32 Vehicle discriminating sensor 40 Wireless receiving device 42 Wireless Receiving antenna 44 ... Wireless receiver 50 ... Control station 52 ... Wireless receiving device for GPS positioning data 54 ... Position computing device 56 ... PC (display device)

Claims (1)

[Claims] 1. A method for recognizing a position of a railway vehicle in a steelworks by a control station on the ground, wherein a GPS device, a radio transmission device, and a sensor for vehicle identification are installed in the railway vehicle. On the ground, a radio receiver for receiving information from the GPS device and the sensor, and a display device for displaying the position of the railway vehicle are installed. It is possible to distinguish between adjacent tracks of the railway line by using the combination of the railway vehicle position information received by the installed wireless receiver, and to be able to grasp the railway vehicle position in real time by the control station. The method of recognizing the position of a railway vehicle.