JP2002240717A - Cab signal ground device, cab signal onboard device, and cab signal system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cab signal system sufficiently securing the safety even if removing outdoor signals and being materialized with a small plant investment. SOLUTION: A ground device body 110 obtains conventional line information from trains on a track circuit 171 and generates expression display expressing the content to be expressed by a closure signal of a closure section 171 based thereon. A transmission means is a track circuit signal having the expression information and identification information of a rear closure section 171 and transmits a receivable signal from the train to the track circuit of the rear closure section 171 via a rail. The onboard device 150 receives the track circuit signal via an antenna 152, and displays a distance to a front signal, expression of the front signal, and a target speed pattern in a cab based on the expression information and the identification information contained in the track circuit signal, distance information from an encoder 154, and length information of each closure section stored in the onboard database 155.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an in-vehicle signal ground apparatus for transmitting information for expressing a signal in a train from the ground to a train, an in-vehicle signal on-board apparatus mounted on a train, and a vehicle. The present invention relates to a combined in-vehicle signal system.

[0002]

2. Description of the Related Art Traffic light, ATS (automatic train stop), A
A TC (automatic train control device) or the like is used.

[0003] Among them, the traffic lights installed on the side of the tracks are automatically controlled to be turned on using the train on-line information from the track circuit. The track circuit forms a circuit that uses two rails from the transmitting end, which is the exit side of the train, to the receiving end, which is the entrance side of the train, with the outgoing path and the returning path, and sends the track circuit signal from the transmitting end side. It is. If the train is on the track in the middle of the track circuit, the two rails will be short-circuited to the axle, and the track circuit signal from the transmitting end will not be detected on the receiving end side, so there will be no signal, and the on-rail will be detected. It has become.

In automatic control of a traffic light using a track circuit,
As shown in FIG. 6, when the train 901 is present in the block section of the track circuit (5T), no signal is detected at the receiving end (5TR) of the track circuit. Upon detection of the absence of the signal, the block traffic light 902 in that section makes a red stop sign. When a no signal is detected at the receiving end (5TR), the polarity of the track circuit signal 904 transmitted from the transmitting end 903 of the track circuit (4T) behind the signal is inverted. When the receiving end (4TR) of the orbital circuit (4T) detects that the polarity of the orbital circuit signal is inverted, the corresponding traffic light 905 performs a yellow warning.

[0005] The ATS control is also performed based on the on-rail information from the track circuit. Usually, the prevention of collision with the train ahead is performed by using a signal and an ATS in combination.

[0006]

The conventional traffic light involves field work for maintenance and inspection, such as replacement of a light bulb and adjustment of a viewing distance. These operations need to be performed with due consideration for safety because the traffic lights are installed on the side of the railway track. In addition, since the work is performed outdoors, the work is likely to be performed under adverse conditions such as dirt and cold.

[0007] Regarding visibility, since a traffic signal on the side of a track or the like is viewed from a running train, there is a problem that oversight and misunderstanding are likely to occur. Furthermore, there is a problem that the visibility is reduced even by weather conditions such as rain, fog, and snow.

[0008] On the other hand, the ATC can ensure high visibility and safety because the speed limit is always displayed in the vehicle, but it requires a huge investment in equipment, so it is difficult to install it on all routes and trains.

SUMMARY OF THE INVENTION The present invention has been made in view of such problems of the prior art, and is an in-vehicle signal system capable of ensuring sufficient safety even if an outdoor traffic light is removed. It aims to provide what can be realized by capital investment.

[0010]

The gist of the present invention to achieve the above object lies in the following inventions. [1] In the in-vehicle signal ground device (110) for transmitting information for signal presentation in a train from the ground to the train, a presentation representing the contents of a signal to be displayed by a block signal in one block section. Receiving the input of the information, the transmission signal carrying the present information and identification information for identifying the rearward block section of the one block section, the signal being receivable from the train via the rail, the one block section An in-vehicle signal ground apparatus (110), characterized in that it has a transmitting means (112) for transmitting the signal to a rail in a section behind the vehicle.

[2] There is provided a display information acquisition unit (111) for generating notification information representing the content of a signal to be displayed by the block signal of the one block section, and the transmission unit (11).
2) transmitting the transmission signal as a track circuit signal, and the presenting information acquiring means (111) receives a track circuit signal flowing through the track circuit of the one block section, and And the presence information of the train is obtained from the presence information included in the track circuit signal as the transmission signal, and based on the acquired information, the content of the signal to be displayed by the block signal of the one block section is displayed. The in-vehicle signal ground device (110) according to [1], wherein the ground information is used to generate indication information.

[3] A train detecting means (430) and a converting means (413) are further provided.
0) is disposed in the middle of the rear block section, and detects that the train has reached the point. The conversion means (413) replaces the transmission means (112) with the one block. The block traffic signal of the section receives the input of the display information indicating the content to be displayed, and the display information indicates the stop display, and the train is connected to the train detecting means (43).
Until the location of 0) is reached, the presentation content indicated by the presentation information is converted into presentation information indicating presentation content at least one step closer to the progress presentation side, and output. The transmitting means (112) is a transmission signal receivable from a train via a rail, and the converting means (413)
And the identification information for identifying the rear block section of the one block section is output to the rail of the rear block section of the one block section. The in-vehicle signal ground device (410) according to [1] or [2].

[4] The in-vehicle signal ground apparatus (410) according to [3], wherein the train detection means (430) is arranged behind the one block section by a distance equal to or longer than a brake distance of the train.

[5] An on-board signal on-board device (150) for displaying a signal in a train based on information from the ground,
It has mileage measuring means (153, 154), on-board database (155), receiving means (151, 152), arithmetic processing means (156), and in-vehicle display means (160), The measuring means (153, 154) measures the traveling distance of the train on which the onboard signal onboard device (150) is mounted, and the onboard database (155) stores at least the length of each block section. And section length information indicating the length of the receiving section.
1, 152) is [1], [2], [3] or [4]
Receiving the transmission signal transmitted to the rail by the in-vehicle signal ground device (110, 410) described in (1), wherein the arithmetic processing means (156) comprises the receiving means (151, 15).
2) based on the identification information included in the transmission signal received, the information stored in the on-vehicle database (155), and the traveling distance information from the traveling distance measuring means (153, 154); A method for determining the distance to each of the forward block sections two or more ahead, and for determining the content to be signal-displayed by a block signal in each forward block section one or more ahead based on the display information included in the transmission signal. And the in-vehicle display means (160) is:
The distance to each front block section one or more ahead obtained by the arithmetic processing means (156) and the content of the signal to be displayed by the block signal in each front block section are displayed in the vehicle in association with each other. An on-board signal device (150) for an in-vehicle signal.

[6] An in-vehicle signal on-board device (150) for displaying a signal in a train based on information from the ground,
It has mileage measuring means (153, 154), on-board database (155), receiving means (151, 152), arithmetic processing means (156), and in-vehicle display means (160), The measuring means (153, 154) measures the traveling distance of the train on which the onboard signal onboard device (150) is mounted, and the onboard database (155) stores at least the length of each block section. And section length information indicating the length of the receiving section.
1, 152) receives the transmission signal transmitted to the rail by the in-vehicle signal ground device (110) according to [1] or [2], and the arithmetic processing means (156) includes the receiving means. The identification information included in the transmission signal received by (151, 152), the information stored in the on-vehicle database (155), and the mileage measuring means (153, 1).
Based on the traveling distance information from step 54), the distances from the current position to the respective forward block sections one or two or more ahead are obtained, and when the distance to the forward block section is a predetermined distance or more, the present information indicates Based on the present information indicating the present contents at least one step closer to the proceeding present side of the present contents, the block signal of each forward block section one or more ahead seeks the contents to be signaled, and the forward block. After the distance to the section becomes less than or equal to the predetermined distance, a blockage signal of each forward block section that is one or more ahead based on the present information included in the transmission signal received by the receiving means (151, 152). The in-vehicle display means (160) calculates the distance to each forward block section one or two or more ahead obtained by the arithmetic processing means (156). Onboard device for vehicle signal, wherein the blocking traffic signal ahead block section is intended to vehicle displayed in association with the content to indicate the signal current of respectively (15
0).

[7] The arithmetic processing means (156) is configured to determine the identification information contained in the transmission signal received by the receiving means (151, 152), the information stored in the on-vehicle database (155), and the travel. Distance measuring means (153, 1
54) to determine a change pattern of the target speed with respect to the traveling distance from the current position based on the traveling distance information from (54) and the present information included in the transmission signal. The in-vehicle signal on-board device (15) according to [5] or [6], wherein the change pattern of the target speed with respect to the traveling distance from the current position obtained by the processing means (156) is displayed in the vehicle.
0).

[8] An in-vehicle signal on-board device (150) for displaying a signal in a train based on information from the ground,
It has mileage measuring means (153, 154), on-board database (155), receiving means (151, 152), arithmetic processing means (156), and in-vehicle display means (160), The measuring means (153, 154) measures the traveling distance of the train on which the onboard signal onboard device (150) is mounted, and the onboard database (155) stores at least the length of each block section. And section length information indicating the length of the receiving section.
1, 152) is [1], [2], [3] or [4]
Receiving the transmission signal transmitted to the rail by the in-vehicle signal ground device (110, 410) described in (1), wherein the arithmetic processing means (156) comprises the receiving means (151, 15).
2) The identification information included in the transmission signal received, the information stored in the on-vehicle database (155), the traveling distance information from the traveling distance measuring means (153, 154), and the current information included in the transmission signal. A change pattern of the target speed with respect to the travel distance from the current position based on the display information, and the in-vehicle display means (160) calculates the change pattern with respect to the travel distance from the current position determined by the arithmetic processing means (156). The on-vehicle signal on-board device (15) for displaying a change pattern of the target speed in the vehicle.
0).

[9] The on-vehicle database (155)
Further, one or more of section length information of each block section, station data, gradient data, curve data, presenting development data, and branch data are stored. The in-vehicle signal on-board device (150) according to [5], [6], [7] or [8].

[10] The in-vehicle signal ground device (110, 410) according to [1], [2], [3] or [4].
An in-vehicle signal system (100), comprising: an in-vehicle signal on-board device (150) according to any of [5], [6], [7], [8] or [9].

The present invention operates as follows.

The in-vehicle signal ground device (110) receives the input of the display information indicating the content of the signal to be displayed by the block signal in one block section, and determines the present information and the block section or the rear block section. The transmission signal carrying the identification information to be specified is transmitted to the rail in the rear block section. This transmission signal can be received from the train via the rail,
For example, a track circuit signal is encoded, or AF (Aud
io Frequency), a digital signal, or a signal superimposed on a track circuit signal.

The in-vehicle signal on-board device (150) is a mileage measuring means (153, 15) for measuring the mileage of the train.
4), an on-board database (155) preliminarily storing section lengths and the like of each block section, and receiving means (151, 152).
, Arithmetic processing means (156), and in-vehicle display means (16)
0). Travel distance measuring means (153, 154)
Measures the traveling distance of the train, and
52) receives the transmission signal transmitted to the rail by the in-vehicle signal ground device (110). Arithmetic processing means (156)
Is based on the identification information included in the transmission signal, the information stored in the on-vehicle database (155), and the traveling distance information from the traveling distance measuring means (153, 154). The distance to each front block section is calculated.

Further, the arithmetic processing means (156) obtains, based on the presenting information included in the transmission signal, the contents to be signaled by the traffic signal of each forward traffic block one or more ahead. For example, when the content of the announcement information is a caution announcement, a caution announcement is indicated as the content to be signaled by a block signal of the next forward block section, and a stop announcement is performed for the next forward block section. Ask for.

The in-vehicle display means (160) displays the distance to each forward block one or two or more ahead obtained by the arithmetic processing means (156) and the contents to be displayed by the traffic signal of each forward block during the forward block. Correspondingly displayed in the car.

As described above, the transmission signal carrying the present information indicating the present contents of the forward signal and the identification information of the block section or the rear block section flows on the rail, and this is received on the train side, and the train receives the signal. From the various kinds of information stored in the database (155) and the received information, the distance to each forward block section one or more ahead and the present content of each forward signal one or more ahead are obtained. Since these are correlated and displayed in the vehicle, the driver can check the distance to each forward signal one or two or more ahead and the present content of each forward signal at any time during traveling. In addition, since the information is displayed in the vehicle, the visibility is not reduced due to the influence of rain, fog, snow and the like.

Further, a change pattern of the target speed with respect to the traveling distance from the current position is obtained by the arithmetic processing means (156), and when this is displayed, an in-vehicle display close to ATC can be obtained, and higher safety can be obtained. It can be obtained with little capital investment.

On the ground device side, a train detecting means (430) is arranged in the middle of the rearward blocking section to detect that the train has arrived at the relevant location. The train detection means (430)
It will be located at least behind the train's braking distance from the front blocking section. Then, the conversion means (413) indicates the stop information until the train reaches the location where the train detection means (430) is located, where the input information indicates the stop information. The present contents are converted to present information indicating the present contents at least one step closer to the progress present side, and are outputted. Otherwise, the inputted present information is outputted as it is. The transmitting means (112) transmits a transmission signal carrying the present information from the converting means (413) to the rail.

Thus, for example, even if the present information is the stop notice (red), the cabin display becomes the caution notice until the train reaches the location where the train detection means (430) is arranged,
After reaching the location where the train detection means (430) is located, the in-vehicle display is switched to the stop indication.

As described above, the train is connected to the train detecting means (43).
Until the location 0) is reached, a caution announcement or the like is displayed in the vehicle in place of the stop announcement, so that the driver switches to the stop announcement at a location necessary for the driver, which facilitates driving.

Further, the onboard device (150) calculates the distance to the forward blocking section, and when the distance is equal to or greater than a predetermined distance, the display content indicated by the display information received from the ground device (110) is advanced. At least one step closer to the indication side, based on the indication information indicating the indication content, the traffic signal of each forward block one or two or more ahead finds the content to be signaled and displays it in the car, until the front block section After the distance becomes less than or equal to the predetermined distance, based on the received present information as it is, the traffic signal of each forward traffic block one or more ahead is to find the content to be signaled and display it in the vehicle.

As described above, based on the distance to the forward blocking section obtained by the on-board device, control is performed to determine whether or not the received announcement information is brought one step closer to the progress announcement side. The original signal presentation is performed before an appropriate distance from the section, and driving becomes easy. In addition, installation of a train detection device or the like becomes unnecessary, and the ground equipment can be simplified.

In the transmission of the transmission signal carrying the information as a track circuit signal, the track information signal transmitted by the in-vehicle signal ground unit in the forward block section is received by the display information acquisition means (111). Obtains the train location information from the presence or absence of the track circuit signal and the display information included in the track circuit signal, and based on this, generates display information indicating the content of the signal to be displayed by the block signal in the forward block section. You may make it. With this configuration, it is not necessary to separately provide a measure for increasing the information amount of the track circuit signal by inverting the polarity of the track circuit signal, thereby simplifying the device configuration of the entire signal equipment.

[0033]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. Each drawing shows various embodiments of the present invention. As shown in FIG. 1, the in-vehicle signal system 100 according to the first embodiment of the present invention includes a ground device main body 110 and an on-board device 150. The ground device main body 110 includes a presenting information acquisition unit 111 and a transmission unit 112.

The present information acquisition means 111 is used for the block 1
The on-rail information of the train is acquired from the track circuit 71, and based on this, the announcement information indicating the content that the traffic signal of the traffic section 171 should show is generated. More specifically, it receives a track circuit signal flowing in the track circuit in the block section 171 and, based on the presence / absence of the track circuit signal and the present information included in the track circuit signal, a block signal for the block section of the track circuit is signaled. It has a function of generating announcement information indicating the content to be shown.

For example, when a track circuit signal cannot be received from the track circuit in the block section 171 (no signal), it is determined that the train is on the block section 171 and the stop information is generated and output. When the obtained track circuit signal includes the stop announcement information, it is determined that the train does not exist in the block section 171 but the train is present in the block section further ahead of the block section 171 and the notice information of the caution announcement is determined. Is output.

When the acquired track circuit signal includes the notice information of the caution notice, it is determined that the train does not exist in the block section 171 and the block section in front of it, and the notice information of the progress notice is output. Further, when the track circuit signal includes the progress indication information, it is determined that the train does not exist in at least the block section 171 and the block section in front of the block section 171 and the notification information of the progress indication is output. I have. One block section is composed of one track circuit.
The block section and the track circuit have a one-to-one correspondence.

The transmitting means 112 puts the presenting information from the presenting information acquiring means 111 and identification information for uniquely specifying the block section 172 on a track circuit signal receivable from the train via the rails. Is transmitted to the rail in the block 172 behind the block 171. For example, by encoding the track circuit signal, the present information and identification information are put on the track circuit signal, another transmission signal representing the present information and the identification information is superimposed on the track circuit signal, or the track circuit signal is New AF, FS
K (Frequency Shift Keying)
The present information and identification information are transmitted by, for example, modulating the track circuit signal into a digital signal. here,
By modulating the track circuit signal in accordance with the present information and the identification information from the present information acquisition means 111, the function as a transmission signal is imparted to the track circuit signal. The identification information is uniquely assigned in advance to each track circuit in each block section.

The on-board device 150 mounted on the train 10 includes:
It comprises a receiving means 151, a traveling distance measuring means 153, an onboard database 155, an arithmetic processing means 156, and an in-vehicle display means 160. The receiving means 151 includes an antenna 1 for receiving a track circuit signal flowing through the rail.
52 are connected. The receiving means 151 receives the track circuit signal flowing through the rail through the antenna 152, and extracts present information and identification information included in the received track circuit signal.

An encoder 154 for detecting the rotation of the axle is connected to the traveling distance measuring means 153. The traveling distance measuring means 153 measures the traveling distance of the train 10 based on the output signal of the encoder 154.

The on-vehicle database 155 stores various kinds of information regarding the line section on which the train on which the on-board device 150 is mounted travels, such as station data, gradient data, curve data, track circuit data, present deployment data, and branch data. This is a database registered in advance. As the track circuit data, section length information indicating the section length of the track circuit is registered in association with the identification information of each track circuit. Also, the layout configuration (map information) of the track circuits in the line section is stored. Thus, for example, when one piece of identification information is given, a front block section, a block section (track circuit) of the identification information of the front block section, a location of a station, a location in each block section. It is possible to grasp the state of the gradient, the radius of curvature, and the like. The display expansion data is as follows:
It indicates whether it is performed in three manifestations of Y and R, four manifestations of G, YG, Y, and R, or five manifestations of G, YG, Y, YY, and R. is there.

The arithmetic processing means 156 is based on the identification information included in the transmission signal received by the receiving means 151, the section length information stored in the on-vehicle database 155, and the mileage information from the mileage measuring means. It has a function of calculating a distance from the current position to each forward block one or two or more ahead.

More specifically, the arithmetic processing means 156
The point in time when the identification information included in the transmission signal received by the receiving means 151 changes is defined as the point in time when the vehicle enters the block section (track circuit) indicated by the identification information, and the traveling distance from that point and the blockage indicated by the identification information. Based on the section length information of the section, the distance A from the current position to the next forward blocked section
Ask for. Further, the distance to the next next front block section is obtained as A + B by adding the section length B of the next front block section stored in the on-vehicle database to the distance A.

The arithmetic processing means 156 includes the receiving means 15
1 is based on the present information included in the received transmission signal.
Alternatively, it has a function of obtaining the contents to be signaled by the traffic signal in each forward traffic section two or more ahead. For example, when the present development pattern is 3 presents, if the present information included in the received transmission signal is the notice present, the notice signal is displayed as the content to be signaled by the block signal of the next forward block. For example, the stop signal is selected as the content to be signaled by the block signal of the next next front block section, and so on.

Further, the arithmetic processing means 156 includes the receiving means 1
The identification information included in the transmission signal received by 51 and various information such as section length information, gradient data, and curve data stored in the on-vehicle database 155 and the mileage measuring means 15
3 has a function of obtaining a change pattern of the target speed corresponding to the traveling distance from the current position based on the traveling distance information from No. 3 and the display information included in the transmission signal.

The in-vehicle display means 160 includes the arithmetic processing means 15
The distance to each forward block one or two or more ahead obtained in step 6 is associated with the content to be signaled by the traffic signal in each forward block, and the function is displayed in the vehicle. The in-vehicle display means 160 is provided with the arithmetic processing means 15.
6 has a function of displaying the change pattern of the target speed with respect to the traveling distance from the current position obtained in the vehicle. Here, the above contents are displayed on the display as shown in FIG.

In the example of the display screen 300 shown in FIG. 3, a train display 301 simulating the train is displayed, and a current signal display for displaying a signal at the current position is displayed on the left side of the display. 302 is displayed. Further, on the left side of the current signal display 302, a speed display section 303 for displaying the current speed of the train is provided. In front of the train display 301 is a line display 304 extending linearly. The track display 304 simulates a track extending in front of the train.

In front of the train display 301 along the railroad display 304, a forward signal display 305 simulating a traffic signal in a forward block section is displayed. On the left side of the front signal display 305, a first distance display unit 306 for displaying the distance to the next front block section is arranged. In front of the front signal display 305, a front front signal display 307 that simulates a block signal of the next next block section is displayed. On the left side of the front front signal display 307, a second distance display unit 308 for displaying the distance to the next next front block section is arranged.

In the right half of the display screen 300,
A graph 310 showing the relationship between the travel distance from the current position and the target speed is displayed. The horizontal axis indicates the target speed, and the vertical axis indicates the distance from the current position. For example, in the example shown in FIG. 3, the time when the vehicle arrives at the next forward block (650 m ahead)
In this case, the target speed is about 52 km / h, and the target speed is 0 km / h immediately before reaching the next next forward block.
Is displayed graphically. The point at which the ATS operates is indicated by arrow 312.

Front signal display 305, front front signal display 30
7 is displayed on the display screen 300 so as to gradually approach the train display 301 because the distance from the train decreases as the train travels. Similarly, the graph 310 is displayed so as to move downward as the train travels.

Next, the operation will be described. FIG. 2 shows a part of a line section in which the ground apparatus main body 110 constituting the in-vehicle signal system 100 is arranged in each block section (track circuit).
The ground equipment main bodies 110a to 110f are arranged at boundaries between block sections. Each ground equipment main body 110a to 110f
Receives the track circuit signal from the front track circuit at all times, generates presenting information based on the track signal, and transfers the track circuit signal on which the present information and the identification information indicating the rear block section are placed to the rear track circuit. Always sent to the circuit.

In the example of FIG. 2, no train is present in several sections ahead of the track circuit 6T, and the track circuit 6T carries information indicating the progress and the identification information of the track circuit 6T. Orbit circuit signal (6T-G signal) is flowing. The ground equipment main body 110f disposed between the track circuit 6T and the track circuit 5T acquires the progress indication information from the track circuit signal flowing through the track circuit 6T, and displays the progress indication based on the information. A track circuit signal (5T-G signal) carrying information and identification information of the track circuit 5T is generated and sent to the track circuit 5T.

The receiving means 151 of the on-board device 150 mounted on the train 210 located on the track circuit 5T
The track circuit signal flowing to T is received via the antenna 152. Then, the present information and the identification information of the progress present included in the received track circuit signal are extracted. Traveling distance measuring means 1
53 resets and measures the running distance every time the identification information included in the transmission signal received by the receiving means 151 changes. As a result, the distance traveled since the vehicle has entered the currently running track circuit is measured.

The arithmetic processing means 156 reads from the on-vehicle database 155 information on the block section (track circuit) corresponding to the identification information received by the receiving means 151.
Then, by subtracting the travel distance a measured by the travel distance measuring means 153 from the section length of the block section indicated by the identification information, the distance A to the next forward block section is obtained. Here, the section length L5 for the track circuit 5T is read,
The distance A is obtained by subtracting a from L5. Further, a next front block section 6T is determined from the preceding identification information 5T and the map information in the line section, and a section length L6 of the next front block section is read. Then, by adding the section length L6 to the distance A, the distance to the next next front blocking section is obtained.

The arithmetic processing means 156 sets the contents of the present information received by the receiving means 151 as the contents to be signal-presented by the traffic signal of the next block section, and based on the present contents, the contents of the next next block section. The traffic signal seeks the content to be displayed. Here, since the received announcement information indicates the progress announcement, the content of the signal announcement is set to the progress announcement for both the traffic signal in the next traffic section and the traffic signal in the next traffic section. I do.

Further, the arithmetic processing means 156 includes the receiving means 1
The identification information included in the transmission signal received by 51, various information such as section length information, gradient data, and curve data stored in the on-vehicle database 155;
A change pattern of the target speed with respect to the traveling distance from the current position is obtained based on the traveling distance information from the current position 53 and the display information included in the transmission signal.

Onboard device 15 mounted on train 210
The in-vehicle display means 160 of 0 performs in-vehicle display according to the contents obtained by the arithmetic processing means 156. That is, the distance A to the next forward block is displayed on the first distance display unit 306, and the distance A + L6 to the next forward block is displayed as the second distance A + L6.
It is displayed on the distance display unit 308. In addition, since the content to be signaled by the traffic signal in the next traffic section is the progress signal (G), the front signal display 305 displays green. Since the content of the signal to be displayed by the block signal in the next block is also the progress display (G), the front forward signal display 307 is also displayed in green. When the forward signal display 305 is the progress indication, the current signal display 302 also displays green corresponding to the progress indication (G).

The in-vehicle display means 160 further displays the change pattern of the target speed obtained by the arithmetic processing means 156.
Here, the current signal display 302, the forward signal display 305,
Since all the front forward signal displays 307 are progress indications, a state where the target speed does not change at a constant speed such as 75 km / h is displayed.

Since the train 210 is present on the track circuit 5T, the track circuit 5T
Orbit circuit signal sent to the orbit circuit 5T and the orbit circuit 4
It does not reach the ground equipment main body 110e for 4T disposed between T. The notification information acquisition means 111 of the 4T ground device main body 110e detects that the track circuit signal from the track circuit 5T is interrupted and has no signal, and generates the notification information of the stop notification. And the ground equipment main body 11 for 4T
0e transmitting means 112 transmits the track circuit signal (4T-
R signal) to the track circuit 4T.

If a train is present at any part of the track circuit 4T, the on-board device 150 of the train receives the track circuit signal (4T-R signal) flowing through the track circuit 4T and outputs the forward signal. A red color corresponding to the stop indication is displayed on the display 305.

The ground equipment main body 110d for 3T disposed between the track circuit 4T and the track circuit 3T has a warning signal because the track circuit signal from the track circuit 4T includes the stop information. Generate announcement information. The transmission means 112 of the 3T ground device main body 110d sends to the track circuit 3T a track circuit signal (3T-Y signal) on which the present information of the warning notice and the identification information of the track circuit 3T are loaded.

If a train is present at any point of the track circuit 3T, the on-board device 150 of the train receives a track circuit signal (3T-Y signal) flowing through the track circuit 3T. Then, the notice information and the 3T identification information of the notice notice included in the received track circuit signal are extracted. Arithmetic processing means 1
56 indicates the distance to the next front block section based on the identification information 3T received by the receiving means 151, the information stored in the on-vehicle database 155, and the running distance measured by the running distance measuring means 153. Find the distance to the next forward block section of.

Since the notification information received by the receiving means 151 indicates the caution indication, the arithmetic processing means 156 sets the content to be signaled by the traffic signal in the next block interval as the caution indication, and Set the content to be signaled by the traffic signal in the traffic block in the block section to the stop signal. The arithmetic processing unit 156 further includes identification information 3T included in the transmission signal received by the receiving unit 151 and various information such as section length information (L3, L4) stored in the onboard database 155, gradient data, curve data, and the like. Then, a change pattern of the target speed with respect to the traveling distance from the current position is obtained based on the traveling distance information from the traveling distance measuring unit 153 and the notice information included in the transmission signal.

Onboard device 15 mounted on train 210
The in-vehicle display means 160 of 0 performs in-vehicle display according to the contents obtained by the arithmetic processing means 156. If the received announcement information is a caution announcement, an in-vehicle display as shown in FIG. 3 is performed. In other words, the distance to the next forward block is displayed on the first distance display unit 306, and the corresponding forward signal display 305 displays yellow corresponding to the caution indication. In addition, the distance to the next forward block is displayed on the second distance display unit 308, and the corresponding front signal display 307 displays red corresponding to the stop indication. Further, a change pattern of the target speed obtained by the arithmetic processing means 156 is displayed. Here, a target speed pattern is displayed in which the target speed gradually decreases in accordance with the traveling distance, and the speed becomes zero immediately before the next next forward blockage section.

The ground equipment main body 110c for 2T disposed between the track circuit 3T and the track circuit 2T has the track circuit 3T.
Since the trajectory circuit signal from includes the notice information of the caution notice, the notice information of the progress notice is generated. The transmission means 112 of the 2T ground equipment main body 110c sends to the track circuit 2T a track circuit signal (2T-G signal) on which the present information of the progress indication and the identification information of the track circuit 2T are loaded.

As described above, the transmission signal carrying the indication information indicating the indication content of the forward signal and the identification information of the block behind it is sent to the rail as a track circuit signal, and this is received by the train side, From the various types of information stored in the above database and the received information, the distance to each forward block section one or more ahead and the present content of each forward signal one or more ahead are obtained, Since these are displayed in the vehicle in association with each other, the driver can confirm the distance to each forward signal one or more ahead and the present content of each forward signal at any time during driving, and Oversight and misidentification can be prevented. In addition, since it is displayed in the car,
Visibility does not decrease due to the effects of rain, fog, snow and the like.
Further, since the change pattern of the target speed with respect to the traveling distance from the current position is obtained and displayed in the vehicle, a display close to the ATC can be obtained with a small capital investment.

The arithmetic processing means 156 may change the display content of the in-vehicle signal as follows depending on whether or not the distance to the forward blocking section is equal to or longer than a predetermined brake distance. That is, when the distance to the forward blocking section is equal to or longer than the predetermined brake distance, the display content indicated by the received notification information is changed to the notification information indicating the notification content obtained by at least one step closer to the progress notification side. After the conversion, the contents to be signal-presented by the traffic signal in each forward traffic block one or more ahead are obtained based on the converted present information. Then, after the distance to the forward blocking section becomes equal to or less than the predetermined distance, the signal of the forward blocking section in each forward blocking section that is one or more ahead should be signaled based on the presenting information included in the transmission signal received by the receiving means. Ask for content.

For example, in the case of FIG. 3, if the braking distance is 500 m, while the distance displayed on the first distance display section 306 is 500 m or more, the forward signal display 30 is displayed.
5, a green color corresponding to the progress indication is displayed, and a yellow color corresponding to the caution indication is displayed on the front forward signal display 307. Then, when the distance to the front blocking section becomes 500 m or less, the yellow corresponding to the caution indication is displayed on the front signal display 305,
A red color corresponding to the stop indication is displayed on the front forward signal display 307. In this way, the content of the signal presentation is switched at an appropriate timing for the driver, and driving becomes easier.

Next, a second embodiment of the present invention will be described. FIG. 4 shows a configuration of an in-vehicle display system according to the second embodiment. In the second embodiment,
A train detection means 430 is added as a ground device, and instead of the ground device main body 110, a conversion means 41 is provided.
3 is used. On-board equipment 1
50 is the same as that shown in the first embodiment.

The train detecting means 430 is arranged in the middle of the block section where the transmitting means 112 sends out the track circuit signal.
It detects that the train has reached the location.
Here, the train detection means 430 is arranged at a position away from the boundary with the block section 171 by a distance corresponding to a so-called brake distance.

The conversion means 413 is provided with the present information acquisition means 11
1, the present information is input and converted or output to the transmitting means 112 without conversion. The conversion unit 413, when the notification information from the notification information acquisition unit 111 indicates a stop notification, indicates that the train
Until it reaches the arrangement location of No. 30, the present information acquisition means 1
11 is converted into presentation information indicating the presentation content at least one step closer to the progress presentation side. Also, in cases other than the above, including after the train arrives at the location where the train detection means 430 is arranged, the present information from the present information acquisition means 111 is output to the transmission means 112 as it is.

FIG. 5 shows the train detecting means 430 shown in FIG.
And a part of a line section in which the ground apparatus main body 410 is arranged in each block section. Ground equipment main body 410a-410
f is arranged at the boundary between block sections. The train detection means 430a to 430f are respectively arranged at points (hereinafter, also referred to as point B) separated behind by a so-called brake distance from a front block section.

In FIG. 5, the track circuit 6T and the track circuit 5
The ground equipment main body 410f disposed between T and the track information obtains the progress information from the track circuit signal flowing to the track circuit 6T, and based on the information, obtains the progress information and the track information of the track circuit 5T. Track circuit signal with identification information (5T-G signal)
Is generated and sent to the track circuit 5T. The on-board device 150 mounted on the train on the track circuit 5T includes the track circuit 5
The track circuit signal flowing to T is received, and the operation is performed in the same manner as in the first embodiment to display the signal inside the vehicle.

Since the train is on the track circuit 5T,
The track circuit signal transmitted from the ground device main body 410f to the track circuit 5T does not reach the 4T ground device main body 410e. Therefore, the notification information acquisition means 111 of the 4T ground apparatus main unit 410e outputs the notification information of the stop notification. 4T
The conversion means 413 of the ground equipment main body 110e uses the current stop information inputted from the current information acquisition means 111 until the train detection means 430e arranged in the middle of the track circuit 4T detects the arrival of the train. The information is converted into notice information of the notice notice and output to the transmitting means 112. Transmission means 112
Sends a track circuit signal (4T-Y signal) on which the notice information of the warning notice and identification information of the track circuit 4T are placed, to the track circuit 4T.
To send to.

Therefore, if the train is located behind the location of the train detection means 430e in the track circuit 4T, the on-board device 150 of the train will use the track circuit signal (4T-Y signal) flowing through the track circuit 4T. ) Is received, and an in-vehicle display corresponding to the warning announcement is performed. Specifically, as shown in FIG. 3, yellow is displayed on the front signal display 305 corresponding to the traffic light in the next front block section.

Thereafter, when the train reaches the location (point B) where the train detecting means 430e is located, the train detecting means 430e
The conversion means 413 of e transmits the notification information of the stop notification input from the notification information acquisition means 111 as it is to the transmission means 112.
Output to Thereby, the train is detected by the train detecting means 430e.
After reaching the location, the track circuit signal (4T-R signal) carrying the stop information is sent to the track circuit, and the in-vehicle display corresponding to the stop indication is performed. That is, red is displayed on the front signal display 305.

As described above, when the stop indication is displayed in the car, the caution indication is given as an in-car signal until the train reaches point B, and the stop indication is made after arrival at point B. , The content of the present signal of the in-vehicle signal is switched, and driving becomes easy.

In the above-described embodiment, the train on-rail information in the front is obtained from the presence / absence of the track circuit signal sent from the ground equipment main body 110 in front and the present information contained therein. When presenting information and identification information are transmitted on a transmission signal different from the track circuit signal, the train location information may be obtained from the track circuit signal.

For example, depending on the presence or absence of a signal and its polarity, 3
Train location information may be acquired from a track circuit signal that can be displayed. This track circuit signal can be used as it is as presentation information indicating the content of the signal presentation. Therefore, the control signal to the existing signal is transmitted to the in-vehicle signal system 1.
If used as the announcement information to be input to 00, the announcement information acquisition means 111 can be omitted from the ground apparatus main body 110, and new capital investment for introducing the in-car signal system can be reduced.

In this embodiment, the identification information indicating the orbital circuit through which the transmission signal is transmitted is transmitted on the orbital circuit signal. However, the identification information may be the identification information of the orbital circuit one ahead of the circuit. In this case, the on-board device determines and processes the next track circuit based on the received identification information.

[0080]

According to the in-vehicle signal system of the present invention, the distance to each forward block one or two or more ahead and the present contents of each forward signal are displayed in the vehicle. Can be checked at any time during traveling, and it is possible to prevent a signal from being overlooked or misidentified. In addition, since the information is displayed in the vehicle, the visibility is not reduced due to the influence of rain, fog, snow and the like.

Further, by obtaining a change pattern of the target speed with respect to the traveling distance from the current position and displaying the change pattern, an in-vehicle display close to ATC can be obtained. This will allow the existing terrestrial traffic light to be completely replaced by the in-vehicle signaling system, as long as legal issues are resolved. As a result, a ground signal is not required, and maintenance work and the like outdoors can be eliminated.

Further, at least one step in which the in-vehicle signal is displayed from the progress indication until the train reaches the location where the train detection means is located or a predetermined distance before the forward blocking section, the signal is displayed at a timing necessary for the driver. The contents of the present are switched, and the operation becomes easy.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an in-vehicle signal system according to a first embodiment of the present invention.

FIG. 2 is an explanatory diagram illustrating a flow of a track circuit signal in the in-vehicle signal system according to the first embodiment of the present invention.

FIG. 3 is an explanatory diagram showing an example of a display screen displayed on the on-board device of the in-vehicle signal system according to the first embodiment of the present invention.

FIG. 4 is a block diagram showing a configuration of an in-vehicle signal system according to a second embodiment of the present invention.

FIG. 5 is an explanatory diagram illustrating a flow of a track circuit signal in an in-vehicle signal system according to a second embodiment of the present invention.

FIG. 6 is an explanatory diagram illustrating the flow of a track circuit signal in a conventionally used signal system.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Train 100 ... In-vehicle signal system 110, 410 ... Ground apparatus main body 111 ... Presenting information acquisition means 112 ... Transmission means 150 ... On-board equipment 151 ... Receiving means 152 ... Antenna 153 ... Travel distance measuring means 154 ... Encoder 155 ... Car Upper database 156 ... Calculation processing means 160 ... In-car display means 171 ... One block section 172 ... Back block section 210 ... Train 300 ... Display screen 301 ... Train display 302 ... Current signal display 303 ... Speed display section 304 ... Track display 305 ... Forward signal display 306: first distance display section 307 ... front forward signal display 308 ... second distance display section 310 ... graph 312 ... arrow indicating ATS position 413 ... conversion means 430 ... train detection means 901 ... track circuit (5T) Trains on the line 902: 5T block signal 903: Track circuit 4T Transmission end 904: Track circuit signal 905: 4T block signal

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5H115 PA08 PC02 PG01 SF07 SJ07 SJ13 SL01 SL05 SL08 UB01 UB05 UB08 UB11 UB15 5H161 AA01 BB01 BB03 BB06 BB20 CC01 DD02 DD21 DD31 GG04 GG12 GG23

Claims (10)

[Claims] 1. An in-vehicle signal ground apparatus for transmitting information for signal display in a train from the ground to a train, wherein display information indicating the contents of a signal to be displayed by a block signal in one block section. The transmission signal carrying the present information and identification information for specifying the block behind the one block section, the transmission signal that can be received from the train via the rail, of the one of the block section An in-vehicle signal ground apparatus comprising a transmitting means for transmitting to a rail in a rear block section. 2. A method according to claim 1, further comprising: a display information acquisition unit for generating display information indicating a content to be displayed by the block signal of the one block section, wherein the transmitting unit converts the transmission signal into a track circuit signal. The present information acquisition means receives a track circuit signal flowing in the track circuit of the one block section, and includes the presence or absence of the track circuit signal and the track circuit signal as the transmission signal. The present invention obtains train line information from the present information, and based on the acquired information, generates the present information representing the contents to be displayed by the block signal of the one block section. 2. The ground apparatus for in-vehicle signals according to 1. 3. The train detecting means further comprises a train detecting means and a converting means, wherein the train detecting means is arranged in the middle of the rear block section, and detects that the train has reached the place. The conversion means receives, in place of the transmission means, notification information representing the content to be signaled by the block signal of the one block section, and the notification information indicates a stop signal, and the train Until the train reaches the location of the train detection means, the display content indicated by the notification information is converted into the notification information indicating the notification content at least one step closer to the progress notification side, and output. In other cases, the presenting information that has been input is output as it is, and the transmitting means is a transmission signal that can be received from the train via a rail, and the presenting information output by the converting means is the same as the present information. Block behind the block Claim and characterized in that sending the one carrying the identification information for identifying the rail of the rear block section of the one block section 1
Or the ground apparatus for in-vehicle signals according to 2. 4. The in-vehicle signal ground apparatus according to claim 3, wherein the train detecting means is disposed behind the one block section by a distance equal to or longer than a brake distance of the train. 5. An in-vehicle signal on-board device for displaying a signal in a train based on information from the ground, comprising: a mileage measuring means, an on-board database, a receiving means, an arithmetic processing means, and an in-vehicle display means. The mileage measuring means is for measuring the mileage of a train equipped with the in-vehicle signal on-board device, and the on-board database represents at least the length of each block section. Section length information is stored, and said receiving means receives a transmission signal transmitted to a rail by the in-vehicle signal ground apparatus according to claim 1, 2, 3, or 4, and said arithmetic processing means Based on identification information included in the transmission signal received by the receiving means, information stored in the on-vehicle database, and mileage information from the mileage measuring means, and at least one or more from the current position. And to determine the distance to each forward block section, and to determine the content that the block signal of each forward block section ahead by one or two or more based on the display information included in the transmission signal should signal, The in-vehicle display means displays in-vehicle information in association with a distance to each forward block one or two or more ahead obtained by the arithmetic processing means and a signal to be displayed by a traffic signal in each forward block. An in-vehicle signal on-board device, characterized in that: 6. An in-vehicle signal on-board device for displaying a signal in a train based on information from the ground, comprising: a mileage measuring means, an on-board database, a receiving means, an arithmetic processing means, and an in-vehicle display means. The mileage measuring means is for measuring the mileage of a train equipped with the in-vehicle signal on-board device, and the on-board database represents at least the length of each block section. Wherein the receiving means receives a transmission signal transmitted to a rail by the in-vehicle signal ground device according to claim 1 or 2, and wherein the arithmetic processing means comprises: Means based on the identification information included in the transmission signal received by the means, the information stored in the on-vehicle database, and the mileage information from the mileage measuring means, each one or two or more ahead of the current position. The distance to the block section is obtained, and when the distance to the forward block section is a predetermined distance or more, the display content indicated by the display information is at least one step closer to the progress display side. A block signal for each forward block section that is one or two or more ahead seeks the content to be signaled based on the display information, and after the distance to the front block section becomes less than the predetermined distance, the transmission signal received by the receiving means. Based on the present information included in the signal, a block signal of each forward block section ahead by 1 or 2 or more is used to determine the content to be signal-presented, and the in-vehicle display unit is configured to calculate the 1 or 2 obtained by the arithmetic processing unit. The distance to each front block section two or more ahead and the contents to be signaled by the block signal of each front block section are displayed in the vehicle in association with each other. Cars on the device for in-vehicle signal that. 7. The arithmetic processing means includes: identification information included in the transmission signal received by the receiving means; information stored in the on-vehicle database; mileage information from the mileage measuring means; A change pattern of the target speed with respect to the travel distance from the current position based on the present information included in the vehicle. The in-vehicle display means includes a target speed with respect to the travel distance from the current position obtained by the arithmetic processing means. The in-vehicle signal on-board device according to claim 5 or 6, wherein the change pattern is displayed in the vehicle. 8. An in-vehicle signal on-board device for displaying a signal in a train based on information from the ground, comprising: a mileage measuring means, a on-board database, a receiving means, an arithmetic processing means, and an in-vehicle display means. The mileage measuring means is for measuring the mileage of a train equipped with the in-vehicle signal on-board device, and the on-board database represents at least the length of each block section. Section length information is stored, and said receiving means receives a transmission signal transmitted to a rail by the in-vehicle signal ground apparatus according to claim 1, 2, 3, or 4, and said arithmetic processing means The identification information included in the transmission signal received by the receiving means, the information stored in the on-vehicle database, the mileage information from the mileage measuring means, and the present information included in the transmission signal. The in-vehicle display means displays the in-vehicle change pattern of the target speed with respect to the traveling distance from the current position obtained by the arithmetic processing means. An in-vehicle signal on-board device, characterized in that: 9. The on-vehicle database stores one or more of section length information, station data, gradient data, curve data, presenting development data, and branch data of each block section. 6. The memory according to claim 5, wherein
9. The in-vehicle signal on-board device according to 6, 7, or 8. 10. An in-vehicle signal ground apparatus according to claim 1, 2, 3 or 4, and an in-vehicle signal on-board apparatus according to claim 5, 6, 7, 8 or 9. In-car signal system.