JP2000071985A - Device for generating data concerning position of train - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a reliable device for generating data concerning a position of a train, which can generates information necessary for train operating control, such as a railway on which a vehicle is present, an advancing direction, and a kind of a vehicle. SOLUTION: Radio bases 1 to 3 in a portable telephone network are arranged along a railway on which a train runs, and the train is provided with a portable telephone terminal so as to constitute a first train position detecting device which transmits train position data at a radio zone level. A loop coil type train presence detector L11 to L42 are provided to both or either one of an inlet and an outlet of each of detecting sections, and the detectors deliver detection signals to control devices 6, 7 for determining the presence of a train and a direction of entrance of the train so as to constitute a second train position detecting device for transmitting a train position data at a point level. The first and second train position detecting devices constitute a train position data generating device.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to train position information for generating train position information used for train operation management such as prevention of contact accidents between trains, locking of switches, and management of train entry and direction. It relates to a generator.

[0002]

2. Description of the Related Art On-rail detection, which detects whether or not a train is on a track in a detection section, is to prevent a contact accident when a train is on a branch track or an adjacent track.
It is indispensable for locking the switch when the train is on the branch, managing the approach and direction of the train, or controlling the level crossing. A train position information generating device that detects whether or not a train is on a track in a detection section and generates train position information requires accurate on-line detection and reliable fail-safe.

[0003] A general on-rail detection system in a railroad is a track circuit detection system including a power supply, a rail, and a track relay. In this track circuit detection method, the rail is short-circuited by the wheels of the train entering the detection section, the supply of power to the relay is cut off, so the relay operation is restored, and the train presence is detected, Large-capacity power supply equipment is required and the power consumption is large.It is necessary to set the type of track circuit current according to AC and DC electrification sections. There are problems such as inability to do so.

As a non-track circuit type on-rail detector that does not use a track circuit, there is a loop coil type on-rail detector. This loop coil type on-rail detection system embeds a loop coil under the ground at one or both of the entrance and the exit of the track detection section, supplies high-frequency current to this loop coil, and the train passes over it A change in inductance of the loop coil, which is sometimes generated, is detected to detect the presence of a train.

Although the loop coil type on-wire detector has solved various problems of the above-mentioned track circuit type on-wire detector, the inductance change of the loop coil is easily affected by the temperature. In addition, there is a risk of malfunction, and when the train is stopped on the track for a long time without moving, there is no change in the high-frequency current of the loop coil, so there is no change in inductance, and the train stops. There is a problem that the presence of a train inside cannot be detected. Therefore, there is a problem that the accurate on-rail detection and reliable fail-safe required for the train position information generating device cannot be sufficiently satisfied. Also, there is a problem that the train cannot be specified as in the case of the track circuit type on-rail detector.

[0006]

SUMMARY OF THE INVENTION An object of the present invention is to provide a highly reliable train position information generating apparatus for generating information necessary for train operation management such as train location, traveling direction, and vehicle type. It is to be.

[0007]

In order to solve the above-mentioned problems, a train position information generating apparatus according to the present invention generates a wide range of zone-level train position information including a detection section and information on a train type and the like. A first train position detecting device to be operated and a second train position detecting device for generating point-level train position information in the detection section.

That is, the first train position detecting device is provided along a track on which a train travels by setting a radio base station of a portable telephone service network having a position registration function to include at least one detection section in its radio zone. A plurality of stations are arranged, and the train is equipped with a mobile phone terminal for transmitting a unique identification number, so that train position information at a wireless zone level is transmitted. In addition, the second train position detecting device is provided with a non-track circuit type on-rail detector at each of the entrance and / or the exit of the detection section, and receives a detection signal from these on-rail detectors to train. And a control device for determining the presence / absence of the train and the approach / exit direction is provided to transmit point-level train position information in the detection section. The point level is used as a concept corresponding to the zone level. For example, when the zone has a radius of about 100 to 300 m, the point has a radius of about 1 to 3 m. The size of the point differs depending on the on-rail detector used.

In the invention of claim 2, the train position information generating device is constituted by using a loop coil type on-rail detector as the non-track circuit on-rail detector. Further, in the invention of claim 3, the train position information generating device is constituted by using a pair of loop coil type on-rail detectors arranged along the track as the non-track circuit on-rail detector. Further, in the invention of claim 4, the mobile phone terminal is mounted on the tip of a train to constitute a train position information generating device. Furthermore, in the invention of claim 5, the mobile phone terminal is mounted on the front end and the rear end of the train, respectively, to constitute a train position information generating device.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIG. 1 showing an apparatus according to an embodiment of the present invention and FIG. 2 for explaining the operation thereof, the track on which the train travels is a single track 10 divided into two branch tracks, for example, a station platform. Branch track 11 laid across
And an upward branch orbit 12 at two branch points 13 and 14. In such a track having two branch tracks, there are provided four detection sections for detecting the presence of a train at a point level. That is, the first detection section is a trajectory from the branch point 13 to a point separated by a predetermined distance in the upward direction, the second detection section is a downward branch trajectory 11,
The detection section is an ascending trajectory 12 and the fourth detection section is a trajectory from the branch point 14 to a point separated by a predetermined distance in a downward direction.

A first train position detecting device for generating information on a wide range of train positions exceeding the detection section and the type of train, etc. comprises a first radio base station 1 and a second detection section covering the first detection section. The second radio base station 2 that covers the third detection section and the third radio base station 3 that covers the fourth detection section, and are mounted on the front end and the rear end of the train 17, respectively, and wirelessly communicate with these radio base stations. Mobile phone terminal 18 to be connected
And 19, and a control device 4 for controlling these radio base stations and connecting them to the mobile telephone service network 5. Z1 is the first wireless zone that is the coverage of the first wireless base station 1, Z2 is the second wireless zone that is the coverage of the second wireless base station 1, and Z3 is the coverage of the third wireless base station 3. Each of the third wireless zones is shown. The mobile telephone service network 5 is, for example, a PHS public telephone network.

A second train position detecting device for generating information relating to the train position and the approach / exit direction of the point-level train in the detection section is installed at the downstream end of the first detection section close to the ascending branch point 13. Loop coil type on-rail detectors L11 and L12, upper vehicle contact limit 1 in second detection section
Loop coil type on-rail detectors L21 and L22 installed in the vicinity of L5, L2 installed in the vicinity of the downside vehicle contact limit 16
3 and L24, loop coil type on-rail detectors L31 and L3 installed near the vehicle contact limit 16 on the downside of the third detection section.
2. Loop coil type on-rail detectors L33 and L34 installed near the upside vehicle contact limit 15 and downside branch point 1
The loop coil type on-line detectors L41 and L42 installed at the up end of the fourth detection section close to No. 4 are provided with control devices 6 and 7 for controlling these loop coil-type on-line detectors.

Information on the zone-level train position, train type, and the like from the first train position detecting device is transmitted to the computer of the management center 9 via the mobile phone service network 5. In addition, the information on the point-level train location and the approach / exit direction from the second train position detection device is transmitted to the management center 9 via the station control device 8.

In the apparatus of the present invention configured as described above, when the train 17 travels down the track 10 and enters the wireless zone Z1, the mobile phone terminal 18 mounted on the tip of the train is The base station identification number ID1, which is the location information broadcast from one radio base station 1, is received, and the base station identification number stored so far is compared with the newly received base station identification number. If the two are different, the mobile phone terminal 18 stores the newly received base station identification number ID1 and, at the control station of the mobile phone service network 5, indicates that the mobile phone terminal 18 exists in the wireless zone Z1 of the first wireless base station 1. Register.

When the train 17 enters the wireless zone Z2 after passing through the branch point 13, the mobile phone terminal 18 stores the newly received base station identification number ID2 and controls the mobile phone service network 5. The station performs position registration indicating that the station is located in the wireless zone Z2 of the second wireless base station 2. In addition, train 1
When the mobile phone 7 enters the wireless zone Z3 after passing through the branch point 14, the mobile phone terminal 18 stores the newly received base station identification number ID3 and sends the second information to the control station of the mobile phone service network 5. The location registration to the effect that the wireless base station 3 exists in the wireless zone Z3 is performed.

Similarly, the mobile phone terminal 19 mounted on the rear end of the train 17 has a wireless zone Z1 and a wireless zone Z.
2. Each time the vehicle enters the wireless zone Z3, position registration with the control station of the mobile telephone service network 5 is performed in order with a delay of seconds in the position registration of the mobile telephone terminal 18.

Since the radio zone has a radius of about 100 to 300 m, rough train position information in this range can be obtained from the first train position detecting device. At the same time, the train on which the mobile terminal is mounted is identified from the location registration of the mobile phone terminal. Further, the traveling direction of the train 17 can be determined from the order of position registration of the same wireless zone by the mobile phone terminal 18 mounted on the front end of the train 17 and the mobile phone terminal 19 mounted on the rear end thereof.

Next, the point-level train position information from the second train position detecting device is provided by a loop coil type on-rail detector provided at the entrance and / or the exit of the detection section of the track, that is, the first train position information. On-rail detectors L11 and L12 provided at the exit of the detection section, on-rail detectors L21 and L22 provided at the entrance of the second detection section, on-rail detectors L23 and L24 provided at the exit of the second detection section, On-rail detectors L31 and L32 provided at the entrance of the third detection section, on-rail detectors L33 and L34 provided at the exit of the third detection section, and on-rail detectors L41 and L provided at the entrance of the fourth detection section.
Based on the signals from 42, they are obtained from the control devices 6 and 7.

Since the loop coil type on-rail detector is made of, for example, a square winding having a side of 1 to 2 m, the on-rail position of the train can be reliably detected at such a point level. Since two loop coil on-rail detectors are provided as a pair, the approach and exit directions of the train can be determined by the order of on-rail detection. The control devices 6 and 7 determine the approach and exit directions of the train based on signals from the corresponding on-rail detectors.

FIG. 3 shows the train position information at the radio zone levels Z1 to Z3 and the point level train position information from the on-line detectors L11 to L42. Is a code chart showing whether or not this occurs. In FIG. 3, the train position information is represented by a logic 1 when a train line is detected. Therefore, referring to FIG. 3, a first train position detecting device for transmitting the train position information and the train identification information at the wireless zone level and a second train position detecting device for transmitting the point level train position information Let's see what kind of combination pattern of train position information is generated by the train position information generating device of the present invention as the train passes from one end to the other in the track of FIG.

When the down train 17 passes from the left end to the right end of the track in FIG. 1, ie, sequentially from the first detection section to the second detection section and the fourth detection section, the position registration of the wireless zone Z1 by the portable telephone terminal 18 Registration of the position of the wireless zone Z1 by the telephone terminal 19, detection of presence by the presence detector L11, detection of presence by the presence detector L12, mobile phone terminal 1
8, the location registration of the wireless zone Z2, the mobile phone terminal 19
Registration of the wireless zone Z2 by the on-line detector L21, on-line detection by the on-line detector L22, on-line detection by the on-line detector L23, on-line detection by the on-line detector L24, position of the wireless zone Z3 by the mobile phone terminal 18. Registration, location registration of the wireless zone Z3 by the mobile phone terminal 19, presence detection by the presence detector L41, presence detector L
The on-line detection by 42 is performed in order. Therefore, in the train position information generating device according to the present invention, the down train
, The zone-level train position information based on the position registration of the mobile phone terminal and the point-level train position information based on the on-rail detection are generated in the above-mentioned fixed combination pattern.

When the up train 17 passes from the right end to the left end of the track in FIG. 1, that is, from the fourth detection section to the third detection section and then to the first detection section, the mobile phone terminal 19 registers the position of the wireless zone Z3, Location registration of the wireless zone Z3 by the telephone terminal 18, presence detection by the presence detector L42, presence detection by the presence detector L41, the mobile phone terminal 1.
9, location registration of wireless zone Z2, mobile phone terminal 18
Registration of the wireless zone Z2, presence detection by the presence detector L31, presence detection by the presence detector L32, presence detection by the presence detector L33, presence detection by the presence detector L34, position of the wireless zone Z1 by the mobile phone terminal 19. Registration, registration of the position of the wireless zone Z1 by the mobile phone terminal 18, presence detection by the presence detector L12, presence presence detector L
11 are sequentially performed. Therefore, in the train position information generating device according to the present invention, the up train
, The zone-level train position information based on the position registration of the mobile phone terminal and the point-level train position information based on the on-rail detection are generated in the above-mentioned fixed combination pattern.

As is clear from the above description, the train position information input to the computer of the management center 9 from the train position information generating device according to the present invention is obtained by combining the position registration information and the on-rail detection information with a certain signal pattern. Is formed. This signal pattern differs depending on the traveling direction of the train. The train position can be continuously tracked and reliably detected by a combination signal pattern of the position registration information and the train location information. Therefore, even if one of the on-rail detectors fails, the position and traveling direction of the train can be grasped by the signal patterns before and after the failure. Furthermore, information on the type of train and the like can be obtained from the unique identification number of the mobile phone terminal mounted on the train, which is simpler and easier than a conventional train identification method that identifies a train from information other than train position information. It is certain.

By the way, in order to make the configuration and explanation of the embodiment easy to understand, the number of detection sections is four, that is, first to fourth. However, the present invention can be applied to a track including more detection sections. Of course. In the embodiment, two control devices 6 and 7 are provided in the embodiment to receive the detection signal from the non-track circuit type on-rail detector and determine the presence / absence of the train and the approach / exit direction. Alternatively, the station control device 8 may have the function. Further, the non-track circuit type presence detector is not limited to the loop coil type presence detector, but may be a laser type or radio wave type presence detector. Furthermore, it is a matter of course that the train position information generating device according to the present invention can be applied to not only the single track of the embodiment but also the track of a double track.

[0025]

According to the present invention, there is provided a point-level train position detecting device using a non-track circuit type on-rail detector, such as a loop coil type on-rail detector, which has a problem when implemented as a train position information generating device by itself. This also combines a zone-level train position detection device that uses a mobile phone service network such as the PHS public telephone network, which does not function alone as a train position information generation device, thereby ensuring reliable train failure information that is robust to failures. A generator could be provided.

Since the first train position detecting device can obtain information relating to the zone-level train position and train identification, and the second train position detecting device can obtain information relating to the point-level train location and approach / exit directions. The information required by the station control device or the management center can be obtained from the train position information generating device according to the present invention. Further, since the failure can be reliably detected by utilizing the fact that the zone-level train position information and the point-level train position information are generated as a fixed pattern signal, the train incorporating the train position information generating device according to the present invention is used. The security of the operation management system has been improved. Further, since neither the first train position detecting device nor the second train position detecting device uses a track for position detection, the train position information generating device according to the present invention can be applied to a new transportation system.

[Brief description of the drawings]

FIG. 1 is a diagram showing an apparatus according to an embodiment of the present invention.

FIG. 2 is a diagram for explaining the operation of the embodiment of FIG. 1;

FIG. 3 is a code chart showing how train position information at a wireless zone level and train position information at a point level occur in each detection section.

[Explanation of symbols]

1, 2, 3 wireless base station 4 wireless base station control device 5 mobile phone service network 6, 7 on-rail detector control device 8 station control device 9 management center 10 track 11 downside branch track 12 upside branch track 13, 14 Junction point 15, 16 Vehicle contact limit 17 Train 18, 19 Mobile phone terminal L11, L12 On-line detector L1 in the first detection section L21, L22, L23, L24 On-line detector L31, L32, L33, L34 in the second detection section On-line detectors L41, L42 in third detection section On-line detectors Z1, Z2, Z3 in fourth detection section Wireless zone

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yuji Hirao 2-8-8 Hikarimachi, Kokubunji-shi, Tokyo F-term in the Railway Technical Research Institute (Reference) 5H161 AA01 AA02 BB02 BB09 BB11 CC13 DD12 DD21 5K067 AA35 BB05 DD20 EE02 EE10 EE39

Claims (5)

[Claims] 1. A plurality of radio base stations of a mobile phone service network are arranged along a track on which a train travels so as to include at least one detection section in the radio zone, and the train has a mobile phone terminal. A first train position detecting device for transmitting train position information and train identification information at a wireless zone level, and a non-track circuit type on-rail detector at an entrance and / or an exit of a detection section A second train position for transmitting point-level train position information, which is provided with a control device that receives a detection signal from each of these on-rail detectors and determines the presence or absence of a train and the approach and exit directions. Train position information generation device consisting of a detection device. 2. The train position information generating device according to claim 1, wherein said non-track circuit type on-rail detector is a loop coil on-rail detector. 3. The train position information generating device according to claim 2, wherein said non-track circuit type on-rail detector is a pair of loop coil type on-rail detectors arranged side by side along a track. 4. The train position information generating device according to claim 1, wherein said portable telephone terminal is mounted on a tip of a train. 5. The train position information generating device according to claim 1, wherein said portable telephone terminal is mounted on a front end portion and a rear end portion of a train, respectively.