JP2006298109A - Information transmitting device between on-vehicle and ground - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an information transmitting device between on-vehicle and ground integrated with an ATC device and having a simplified ATO function. <P>SOLUTION: Point detecting ground elements P1 to P4 are disposed along a train traveling path 5 at intervals, and give the position information of an own train on the train traveling path 5 to an on-vehicle device 4. Stop position detecting ground elements Q1, Q2 are operated with non-power supply, disposed in a train stop area ST1, and give stop position to the on-vehicle device 4 when electrically united with the on-vehicle device 4. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an on-vehicle / ground-to-ground information transmission apparatus applied in, for example, a monorail or a new transportation system.

  In a monorail or a new transportation system, for example, as disclosed in Patent Document 1, it is necessary between a vehicle and the ground via a loop antenna laid along a train traveling path. An on-vehicle / ground-to-ground information transmission system that transmits and receives information signals is known.

  A loop system that allows multiple trains to be on one loop using a transponder (non-powered ground element) instead of the conventional one loop / one train position as a vehicle-on-ground transmission system using a loop. A CBTC (Communication Based Train Control with Shared Loop) system has been proposed (see Patent Document 1).

  In the loop type CBTC system, first, point information is transmitted from the ground device to the on-board device via a ground unit (also referred to as a transponder). The on-board device receives point information from the ground via the ground unit and the vehicle unit and generates an ATO operation pattern.

  In addition, bidirectional transmission is performed between the ground and the vehicle via a loop. The on-board device has a unique number, and the ground device sequentially transmits (polling) train control information such as travel distance and speed limit to the on-vehicle basis for each unique number. When the on-board device receives information addressed to itself, it returns a response to transmit the position of the own train or the like to the ground.

  By the way, the main application area of the loop type CBTC system is a monorail oriented to unmanned operation, a new transportation system, and the like, and it is necessary to have a function as an automatic train operation (ATO) device. In general, the ATO device is based on an automatic train control (ATC) device and adds functions such as departure control, scheduled operation control, and fixed position stop control. Among these functions, in particular, the fixed position stop control (TASC-Train Automatic Stop Control) is a control that automatically stops the train at a predetermined position of the station, and is a main function of the ATO device.

  In the fixed position stop control, stop position information and correction information for improving the stop point system are transmitted from the ground device to the on-board device via the ground element (transponder). The on-board device receives information from the ground via the on-board child and performs a fixed position stop control of the own train.

  For fixed-position stop control, conventionally, a power source ground element is used, and ATO control information, train number, etc. are transmitted and received between the ground and the vehicle via the power source ground element. Various transmissions such as opening and closing commands were performed.

  The ATO device is divided into a ground side and a vehicle upper side. The ground device constituting the ATO device includes a repeater, a code processor and the like in addition to the power-sourced ground element in order to give a fixed position stop detection of a train, a platform fence, a train door opening / closing command, and the like. The ground device receives information from the vehicle via a power source ground unit → repeater → code processor and information on the vehicle via a code processor → repeater → power source ground unit Send.

However, as described above, although the ATO device is a device based on the ATC device, the ground device and the on-board device, which are constituent elements of the ATO device, are different from the ATC device, so a separate ATO device is installed. There is a serious problem that is necessary and the system becomes large-scale.
JP-A-9-301176

  An object of the present invention is to provide an on-vehicle / ground-to-ground information transmission apparatus integrated with an ATC apparatus and having a simplified ATO function.

  In order to solve the above-described problem, an on-vehicle / ground-to-ground information transmission device according to the present invention includes a ground device, an on-vehicle device, a point detecting ground element, and a stop position detecting ground element. The ground device and the on-vehicle device exchange information with each other. The point detection ground elements are arranged at intervals along the train travel path, and give the on-board device position information of the own train on the train travel path. The stop position detecting ground element is operated with no power source, and is disposed in a train stop area, and gives stop position information to the onboard apparatus when electrically connected to the onboard apparatus.

  As described above, in the on-vehicle / ground-to-ground information transmission device according to the present invention, the point detecting grounding elements are arranged at intervals along the train travel path, and the on-board device is configured to transmit the self-train on the train travel path. Give location information. The on-board device transmits information obtained from the point detection ground element to the ground device. Specifically, the on-board device has a unique number, and the ground device sequentially transmits (polling) train control information such as travel distance and speed limit to the on-vehicle basis for each unique number. When the on-board device receives information addressed to itself, it returns a response to transmit the position of the own train or the like to the ground.

  According to this configuration, it is possible to construct a CBTC system that allows a plurality of trains to be present on one loop using a grounding element for point detection without power supply.

  Furthermore, the on-vehicle / ground-to-ground information transmission apparatus according to the present invention includes a stop position detecting ground element. The stop position detecting ground element is disposed in the train stop area, and gives stop position information to the on-board device when electrically connected to the on-board device. Therefore, the on-board device can receive the point information from the stop position detecting ground element via the on-board element and perform the fixed position stop control of the own train.

  After the fixed position stop control, for example, information on train status, fixed position stop, train number, platform fence opening / closing command, train door status, etc. between the ground device and the onboard device via a loop antenna etc. Can give and receive.

  The stop position detection ground element is a ground element that does not need to supply power from the outside, that is, from the outside. This means that it is not necessary to include a repeater, a code processor, etc. in the ground device which comprises an ATO apparatus. For this reason, the system configuration is remarkably simplified.

  Furthermore, in relation to the on-board device that constitutes the ATO device, the on-board device originally obtained point information by electrical coupling with a point detector for detecting a point of no power source. There is no hindrance to the electrical connection with the stop position detection ground element that is a power source, and it does not cause structural change of the on-board device.

  In addition, the on-board device that constitutes the ATO device is based on the ATC device and adds functions such as departure control, scheduled operation control, and fixed position stop control, and the on-board device has adaptability to the ATC device. I already have it.

  As described above, the present invention allows the use of the on-board device that constitutes the ATO device as it is, and this brings great benefits to simplification of the system and cost reduction.

  The on-vehicle / ground-to-ground information transmission apparatus according to the present invention is basically used to construct a loop type CBTC system. That is, a loop antenna is included, and the loop antenna is laid along the traveling path of the train. The ground device and the on-board device exchange train control information via the loop antenna.

  In contrast to this, the ground device and the on-board device may exchange information by wireless communication without having a loop antenna.

  As described above, according to the present invention, it is possible to provide an on-vehicle / ground-to-ground information transmission apparatus integrated with an ATC apparatus and having a simplified ATO function.

  Other features of the present invention and the operational effects thereof will be described in more detail by way of examples with reference to the accompanying drawings.

  FIG. 1 is a diagram for explaining an embodiment of an on-vehicle / ground-to-ground information transmission apparatus according to the present invention. The illustrated on-vehicle / terrestrial information transmission device is used for, for example, a monorail, a rubber tire train, a rail bus, a floating train (linear motor car), and the like, and includes a loop antenna 1, a ground device 3, and an on-vehicle The device 4 includes point detection ground elements P1 to P4 and stop position detection ground elements Q1 and Q2.

  Loop antenna 1 is laid along train traveling paths 5 of trains # 1 and # 2. The loop antenna 1 is, for example, a parallel two-wire induction line, and is provided along the train traveling path 5 of the trains # 1 and # 2. The loop antenna 1 is arranged between stations, has a long loop shape with an overall length of, for example, about 1 km, and is sequentially arranged along the train travel path 5.

  The ground device 3 and the on-vehicle device 4 exchange information with each other via the loop antenna 1, and in principle, those that have been conventionally known can be used. The ground device 3 has a transmission / reception function and a signal processing function. The ground device 3 transmits information signals necessary for the trains # 1 and # 2 to the loop antenna 1, while the signal transmitted from the onboard device 4 is looped. Receive and decode via the antenna 1. The ground device 3 receives an instruction from a host device such as an interlocking device or a train central control device (CTC device) or transmits information to the host device.

  The on-board device 4 also has a transmission / reception function and a signal processing function, and is provided in each of the trains # 1 and # 2. The on-board device 4 receives and decodes the signal supplied from the ground device 3 to the loop antenna 1 through the loop antenna 1. The on-board device 4 transmits a signal f1 from the front part of the trains # 1 and # 2, and transmits a signal f2 from the rear part. These signals f1 and f2 are transmitted as information signals from the vehicle to the ground, and are received and decoded by the ground device 3 via the loop antenna 1. The signals f1 and f2 may be digital signals or analog signals. The signal f1 is used as a closed section entry signal, the signal f2 is used as a closed section advance signal, and is also used as an onboard information signal as described above.

  The ground device 3 transmits a signal for polling (broadcast) toward all trains via the loop antenna 1. The on-board device 4 transmits its own train identification information in response to polling when the own train enters the loop antenna 1.

  The point detection ground elements P <b> 1 to P <b> 4 are arranged at intervals along the train travel path 5, and give position information on the train travel path 5 to the on-board device 4. The point detecting ground elements P1 to P4 are non-powered ground elements, and the number thereof may be arbitrary.

  The stop position detection ground elements Q1 and Q2 operate with no power supply, and are disposed in the train stop area ST1 and give stop position information to the onboard apparatus 4 when electrically connected to the onboard apparatus 4. . The train stop area ST1 is generally a station.

  As described above, in the on-vehicle / ground-to-ground information transmission apparatus according to the present invention, the point detection ground elements P1 to P4 are arranged at intervals along the train travel path 5, and the on-board apparatus 4 travels on the train. The position information of the own train on the road 5 is given. The on-board device 4 exchanges information with the ground device 3, and transmits information obtained from the point detection ground elements P <b> 1 to P <b> 4 to the ground device 3 via the loop antenna 1. Specifically, the on-board device 4 has a unique number, and the ground device 3 sequentially transmits (polling) train control information such as travel distance and speed limit to the vehicle for each unique number. When the on-board device 4 receives the information addressed to itself, it returns a response to transmit the position of the own train or the like to the ground. According to this configuration, it is possible to construct a loop CBTC system that allows a plurality of trains to be present on one loop antenna using the point detection grounding elements P1 to P4 with no power supply.

  Further, the on-vehicle / ground information transmission device according to the present invention according to the present invention includes stop position detecting ground elements Q1, Q2. In the case of the illustrated embodiment, the stop position detection ground elements Q1, Q2 are arranged in the station where the train # 1 is stopped, that is, in the train stop area ST1, and are electrically connected to the on-board device 4 on the vehicle. The stop position information is given to the device 4. Therefore, the on-board device 4 can receive the point information from the stop position detecting ground elements Q1 and Q2 via the on-board element and perform the fixed position stop control.

  After the fixed position stop control is performed as described above, the ground device 3 constituting the ATO apparatus sends a fixed position stop detection of the train # 1, a platform fence, a train door opening / closing command, etc. via the loop antenna 1. Then, it can be transmitted to the on-board device 4. Examples of transmission information from the ground to the vehicle include each information of a traveling direction, a train door opening permission direction, a train door opening / closing command, a platform fence state, and a station code.

  On the other hand, the on-board device 4 constituting the ATO device also transmits the train state, fixed position stop, train number, platform fence opening / closing command, train door state, and the like to the ground device 3 via the loop antenna 1.

  The stop position detecting ground elements Q1 and Q2 are non-powered, that is, ground elements that do not need to be supplied with power from the outside. This means that the ground device 3 constituting the ATO device does not need to include a repeater, a code processor, and the like that have been conventionally required. For this reason, the system configuration is remarkably simplified.

  Further, in relation to the onboard device 4 constituting the ATO device, the onboard device 4 of the train # 1 originally has the point information by electrical connection with the point detectors P1 to P4 for detecting the power source. Therefore, there is no problem in the electrical coupling with the stop position detecting ground elements Q1 and Q2 which are also non-powered, and the structural change of the on-board apparatus 4 constituting the ATO apparatus is brought about. It is not a thing.

  Moreover, the on-board device 4 constituting the ATO device has functions such as departure control, scheduled operation control, and fixed position stop control based on the ATC device, and the on-board device 4 is adaptable to the ATC device. Is already prepared.

  Eventually, the present invention allows the on-board device 4 constituting the ATO device to be used as it is, which brings great benefits to simplification of the system and cost reduction.

  FIG. 2 is a diagram showing another example of the on-vehicle / ground-to-ground information transmission apparatus according to the present invention. In the figure, the same reference numerals are assigned to the portions corresponding to the portions that have appeared in FIG. In this embodiment, one stop position detecting ground element Q having a large shape is used. Also in this case, the same operation and effect as the embodiment shown in the figure can be obtained.

  FIG. 3 is a diagram showing another example of the on-vehicle / ground-to-ground information transmission apparatus according to the present invention. In the figure, the same reference numerals are assigned to the portions corresponding to the portions that have appeared in FIG. In this embodiment, a loop antenna 12 independent from the loop antenna 1 is provided in the stop region ST1. Others are the same as those of the embodiment of FIG. 1, and the same operational effects can be obtained.

  FIG. 4 is a diagram showing another example of the on-vehicle / ground-to-ground information transmission apparatus according to the present invention. In the figure, the same reference numerals are assigned to the portions corresponding to the portions that have appeared in FIG. In this embodiment, the ground device 3 and the on-vehicle device 4 do not have a loop antenna, and exchange information by wireless communication.

  While the present invention has been described with reference to the embodiment, it is needless to say that the present invention is not limited to this embodiment, and various modifications and changes can be made within the scope of the claims.

It is a figure which shows one Example of the on-vehicle / ground-to-ground information transmission apparatus which concerns on this invention. It is a figure which shows another Example of the on-vehicle / ground-to-ground information transmission apparatus which concerns on this invention. It is a figure explaining another Example of the on-vehicle / ground-to-ground information transmission apparatus which concerns on this invention. It is a figure explaining another Example of the on-vehicle / ground-to-ground information transmission apparatus which concerns on this invention.

Explanation of symbols

1 Loop antenna P1-P4 Point detection ground element Q, Q1, Q2 Stop position detection ground element
3 Ground equipment
4 Onboard equipment # 1, # 2 Train

Claims (3)

An on-vehicle / ground-to-ground information transmission device including a ground device, an on-vehicle device, a point detecting ground element, and a stop position detecting ground element,
The ground device and the on-board device can exchange information with each other,
The point detection ground element is arranged at intervals along the train travel path, and gives the on-board device position information of the own train on the train travel path,
The stop position detecting ground element is operated without a power source, is disposed in a train stop area, and gives stop position information to the onboard apparatus when electrically coupled to the onboard apparatus.
On-vehicle / terrestrial information transmission device. The on-vehicle / ground-to-ground information transmission device according to claim 1, including a loop antenna, wherein the loop antenna is laid along a traveling path of a train,
The ground device and the on-vehicle device exchange information via the loop antenna.
On-vehicle / terrestrial information transmission device. The on-vehicle / ground information transmission device according to claim 1 or 2, wherein the ground device and the on-vehicle device exchange information by wireless communication.
On-vehicle / terrestrial information transmission device.

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