JP2003063398A - Train detection device and train detection method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To contrive reduction of a facility cost spent for a number of relays by train detection judgment and expression judgment while maintaining a function and safety of a conventional train detection device in a train detection device and a train detection method in a new traffic system. SOLUTION: Number one and number two system transmission and reception parts 110 and 120 can mutually share a 1T-In1 signal, a 1T-OUT1 signal and a 1T R1 signal inserted in light LANs 11 and 12 and output from a number one system and a 1T-IN2 signal, a 1T-OUT2 signal and a 1TR2 signal output from a number two system together with the number one system and the number two. A train detection logic shown in number one and number two system train detection judgment parts 130 and 140 is realized by a program, an output signal from the number one system transmission and reception part 110, an output signal from the number two system transmission and reception part 120, the 1TR1 signal and the 1TR2 signal are OR-processed, and detection judgment of a train is performed on the basis of the OR-processed result.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a train detection device and a train detection method in a new transportation system.

[0002]

2. Description of the Related Art Conventionally, a new transportation system such as a rubber tire system has been planned for the purpose of complementing the trunk line traffic, and an unmanned driving system using an ATO (Automatic Train Operation) system or an ATC (Automatic Train System).
It is a transportation system built based on the one-man driving method backed up by the Train Control system. Here, the ATO or ATC is a control system that detects a train running on a track and automatically controls the braking force of the train on the track based on the detection information.

Train detection based on the above ATO and ATC is
In the case of conventional railways, of the multiple track circuits that make up the rail,
Although the train position is detected by determining the track circuit short-circuited by the existing train, the above-mentioned rail does not exist in the case of the new transportation system, so the check-in / check-out method differs from that of the conventional railway. Train detection is performed based on a train detection method called ".

Referring to FIG. 3, a train detecting device based on the above-mentioned check-in / check-out method in a conventional new transportation system will be described. FIG. 3 is a diagram showing a schematic configuration of a train detection device 200 in a conventional new transportation system.

As shown in FIG. 3, loop coils 0T to 2T and the like simulating a track circuit of a conventional railway are laid on a track (not shown) on which the train 10 of the new transportation system runs. The traveling direction of the train 10 is a direction from the loop coil 0T to 2T.

Further, transmitters 10a and 10b are provided at the front and rear of the train 10, respectively, and constantly transmit signals of different oscillation frequencies. Here, the signal transmitted from the transmitter 10a arranged in the front part of the train 10 is called a check-in signal, and the signal transmitted from the transmitter 10b arranged in the rear part is called a check-out signal.

Further, two train detection devices and two ATC transmission devices are connected to each of the loop coils 0T to 2T. These train detectors and ATC
A fail-safe dual system is realized by disposing two transmitters each.

[0008] For example, the loop coil 1T includes a train detecting unit 210a and an ATC transmitting unit 210b, and a first system transmitting / receiving unit 210, a train detecting unit 211a and an ATC transmitting unit 2
The No. 2 system transmitter / receiver 211 and the like including 11b are connected.

Further, the train 10 is provided with a receiver (not shown), and the receiver receives the ATC signal transmitted from the ATC transmitter via the loop coils 0T to 2T.
For example, when the train 10 is on the loop coil 1T,
The receiver provided in the train 10 is the ATC transmission unit 211b.
The ATC signal transmitted from is received via the loop coil 1T.

The check-in and check-out signals are transmitted as train detection signals to the two train detection devices provided for the loop coils 0T to 2T via the loop coils 0T to 2T.

For example, the check-in and check-out signals output from the transmitters 10a and 10b to the loop coil 1T are input to the train detectors 210a and 211a.

A receiver for receiving the check-in and check-out signals may be provided separately from the loop coils 0T to 2T. For example, the check-in and check-out signals may be provided at each boundary of adjacent loop coils. It may have a configuration in which a receiver for receiving is received.

When the check-in and check-out signals are input, the train detectors 210a and 211a receive a bit signal (hereinafter referred to as 1T-IN signal) indicating whether or not the check-in signal is received, and a check. A bit signal indicating whether or not an out signal is received (hereinafter referred to as 1T-O
1T-IN signal output relay 221a and 1T-OUT signal output relay 221 respectively.
Output via b.

That is, the train detectors 210a and 211a
Receives the check-in signal transmitted from the transmitter 10a when the transmitter 10a arranged in the front part of the train 10 is in the loop coil 1T, stops the output of the 1T-IN signal by the relay operation. (“Low” signal), when the transmitter 10a moves from the loop coil 1T to the loop coil 2T, the check-in signal is the loop coil 1T.
Then, the 1T-IN signal is output (“High” signal).

Further, the train detectors 210a and 211a are
When the transmitter 10b arranged at the rear part of the train 10 receives the checkout signal transmitted from the transmitter 10b when the transmitter 10b is located in the loop coil 1T, the relay operation causes 1
When the transmitter 10b outputs the T-OUT signal (“High” signal) and moves from the loop coil 1T to the loop coil 2T, and the checkout signal is not transmitted to the loop coil 1T, the 1T-OUT signal is output. Is stopped (“Low” signal).

The logic decision unit 220 includes a loop coil 0T.
A logic for detecting a train every 2T or the like (hereinafter, referred to as a train detection logic) includes a train detection determination unit 223 configured by a relay connection circuit, and a signal indicating a determination result by the train detection determination unit 223 and Forward TR
A logic (hereinafter, referred to as a display determination logic) for performing a train display determination based on a condition includes a display determination unit 224 configured by a relay connection circuit.

For simplification of the description, FIG. 3 shows only the train detection determination section 223 and the indication determination section 224 for the loop coil 1T, and the illustration and description of the other loop coils are omitted.

The train detection / judgment unit 223 includes a 1T-IN signal input relay 223a and a 1T-OUT signal input relay 22.
3b, 1TR signal input relay 223c, 2TR signal input relay 223d, 2T-OUT signal input relay 223e
In addition to each of the input relays, the preset switch 223f is provided, and the train detection logic is realized by the relay connection circuit.

That is, the train detection determination unit 223, based on the signals input to the input relays and the train detection logic, outputs a 1TR signal indicating the presence / absence of the train 10 in the loop coil 1T (in the case of presence of a train). The "Low" signal, and the "High" signal in the case of non-existence line) is output via the 1TR signal output relay 223g.

The 1T-IN signal input relay 223a includes
The 1T-IN signal is input, and the 1T-OUT signal is input to the 1T-OUT signal input relay 223b.
The 1TR signal immediately before the current time is input to the signal input relay 223c.

The 2TR signal input relay 223d is supplied with a 2TR signal ("Low" signal when the train is present and "High" signal when the train is not present) indicating the presence / absence of the train 10 in the loop coil 2T. The 2T-OUT signal input relay 223e is supplied with a 2T-OUT signal ("High" signal when the line is present and "Low" signal when the line is not present) indicating whether or not the transmitter 10b is present in the loop coil 2T. It

The 2TR signal is output from a train detection determination unit (not shown) in the loop coil 2T (corresponding to the train detection determination unit 223 in the loop coil 1T), and the 2T-OUT signal is output as a 1T-OUT signal. The signal is output from a 2T-OUT signal output relay (not shown) in the loop coil 2T corresponding to the relay 221b.

Next, the train detection logic will be described. In the case where the 1T-IN signal is "High" (the transmitter 10a is not present in the loop coil 1T) and the 1T-OUT signal is "Low" (the transmitter 10b is not present in the loop coil 1T), and immediately before the current time. Output 1T
The R signal is "High" (the train 10 is not present on the loop coil 1T), or the 2TR signal is "Low" (the train 10 is present on the loop coil 2T) and the 2T-OUT signal is "High" (the loop coil 2T is present). If the preset switch 223f is turned on, the 1TR signal output from the 1TR signal output relay 223g becomes "High" (the train 10 is not present in the loop coil 1T).

In the case of reverse logic to the above logic, 1TR
The 1TR signal output from the signal output relay 223g is "Low" (the train 10 is in the loop coil 1T) in any case.

For example, the 1T-IN signal is "High".
(The transmitter 10a is not present in the loop coil 1T), 1T-
The OUT signal is “High” (the loop coil 1T has the transmitter 10b in the line), the 1TR signal output immediately before is “Low” (the loop coil 1T has the train 10 in the line), 2
The TR signal is “Low” (the train 10 is on the loop coil 2T), the 2T-OUT signal is “Low” (the transmitter 10b is not on the loop coil 2T), and the preset switch 223f is off. , Train detection determination unit 2
The 1TR signal output from 23 is "Low" (the train 10 is on the loop coil 1T).

The output signal from the 1TR signal output relay 223g of the train detection determination unit 223 is input to the display determination unit 224, and the output signal input in the display determination unit 224 and the TR condition in the front loop coil 2T ( That is, the ATC signal including the train indication information determined based on the 2TR signal) is output to the ATC transmission units 210b and 211b included in the No. 1 system transmission / reception unit 210.

The ATC transmitter 210b modulates the ATC signal into a signal wave having a predetermined frequency and transmits it to the loop coil 1T. The ATC transmission unit 211b included in the No. 2 system transmission / reception unit 211 is provided as a backup of the ATC transmission unit 210b. When the ATC transmission unit 210b fails, the ATC transmission unit 210b is replaced with the ATC transmission unit 210b.
Loop coil 1T by modulating the signal into a signal wave of a predetermined frequency
Send to.

Next, the operation of the train detection device 200 will be described. At this time, it is assumed that the preset switch 223f is held in the off state. When the train 10 is not on the loop coil 1T (that is, the transmitters 10a, 10b)
Train is in the loop coil 0T), the train detector 21
0a and the train detector 211a are transmitters 10a and 10b.
Since the check-in and check-out signals transmitted from the device are not received, the 1T-IN signal is "High" and the 1T-OUT signal is "Low".

Furthermore, since the train 10 is not present in the loop coil 1T immediately before the present time, the 1TR signal is "High".
It means that the train 10 is not present in the loop coil 1T.

When the train 10 travels to the loop coil 1T and the train 10 is in a state of straddling the loop coils 0T and 1T (that is, the transmitter 10a is in the loop coil 1T and the transmitter 10b is in the loop coil 0T). If the check-in signal transmitted from the transmitter 10a is received by the train detection unit 210a and the train detection unit 211a via the loop coil 1T, the 1T-IN signal only becomes “Low”.

Therefore, the 1TR signal becomes "Low",
It shows that the train 10 is present in the loop coil 1T.

When the train 10 progresses further and the train 10 completely moves to the loop coil 1T (that is, the transmitter 1
0a and 10b are both present in the loop coil 1T), the train detectors 210a and 211a cause the transmitter 10
When the check-in and check-out signals transmitted from a and 10b are received via the loop coil 1T, the 1T-IN signal is "Low" and the 1T-OUT signal is "Hi".
gh ”.

Therefore, the 1TR signal is held at "Low", indicating that the train 10 is in the loop coil 1T.

When the train 10 further advances and the train 10 is in a state of straddling the loop coils 1T and 2T (that is,
The transmitter 10a is located in the loop coil 2T, and the transmitter 10a
When b is in the loop coil 1T), train detection unit 2
Since the 10a and the 211a receive only the check-out signal transmitted from the transmitter 10b and do not receive the check-in signal transmitted from the transmitter 10a, the 1T-I
Both the N signal and the 1T-OUT signal are "High".

Therefore, the 1TR signal is held at "Low", indicating that the train 10 is present in the loop coil 1T.

When the train 10 further advances and the train 10 completely moves to the loop coil 2T (that is, the transmitter 1
0a and 10b are present in the loop coil 2T), the train detectors 210a and 211a are transmitters 10a and 10b.
Since the check-in and check-out signals transmitted from are not received, the above 1T-IN signal is "High",
The 1T-OUT signal becomes "Low".

Further, since the train 10 has completely moved to the loop coil 2T, the 2T-OUT signal is "High", 2
The TR signal becomes “Low”, so that the 1T-IN signal is “High”, the 1T-OUT signal is “Low”, 2
TR signal is "Low", 2T-OUT signal is "High"
h ".

Therefore, the 1TR signal immediately before the current time is "Lo
Although it is w ”, the 1TR signal becomes“ High ”, indicating that the train 10 is not present in the loop coil 1T.

According to the above configuration, the train detector 210a,
Alternatively, when one of the train detection units 211a fails, the signals input from the train detection units 210a and 211a to the 1T-IN signal output relay 221a and the train detection unit 210
a, 211a to 1T-OUT signal output relay 221b
The signal input to is the 1T-IN signal output relay 221.
Both are wired-ORed before being input to a (that is, input in parallel to the 1T-IN signal output relay 221a).

Therefore, in the train detection device 200, even if either the train detection unit 210a or the train detection unit 211a fails, the 1T-IN signal output relays 221a and 1T are output.
Since a normal signal is output from the -OUT signal output relay 221b, a malfunction when one system (1 system or 2 system) fails is avoided.

Next, the operation when the train detection device 200 is powered on will be described. In particular, a case where the train 10 is not present in the loop coils 1T and 2T when the power is turned on will be described.

In this case, the 1T-IN signal is "High".
h ”, 1T-OUT signal is“ Low ”.
The TR signal is "Low" and the 2TR signal is "H".
The “high” and 2T-OUT signals are “Low”.

Therefore, the current 1TR signal is "L" even though no train is present in the loop coil 1T.
ow ”(a signal indicating that the train is on the line), resulting in incorrect train detection determination.

Although it is different from the actual train operation, assuming that the train 10 can enter the loop coil 1T even when the 1TR signal is "Low", the 1TR after the power is turned on is assumed.
The "Low" state of the signal means that the train 10 once passes through the loop coil 1T after the power is turned on, and the transmitter 10 of the train 10
It is not resolved until b is present in the loop coil 2T.

That is, when the transmitter 10b of the train 10 is in the loop coil 2T, the 1T-IN signal is "Hi".
gh ”, the 1T-OUT signal is“ Low ”, the 2T-OUT signal is“ High ”, and the 2TR signal is“ Low ”, so the 1TR signal is“ High ”,
The train detection device 200 is completely restored and normal train detection determination can be executed.

In actual train operation, the 1TR signal becomes "High" by turning on the preset switch 223f immediately after the power is turned on.
The train detection device 200 can be completely restored without waiting for the train 10 to pass, and normal train detection determination can be performed.

For simplification of description, FIG. 3 shows only the loop coils 0T to 2T, and the first train transmitter / receiver and the first train transmitter / receiver connected to the loop coil 1T are the No. 1 system transmitters / receivers. Only the part 210 and the No. 2 system transmitter / receiver 211 are shown, and other loop coils, train detection devices,
The illustration and description of the ATC transmitter are omitted.

[0048]

In the conventional train detection device 200 in the new transportation system, the relay logic for the train detection judgment and the indication judgment is constituted by a relay connection circuit using a large number of relays. However, the number of relays forming the above-mentioned relay logic increases in proportion to the number of loop coils, so that reduction of equipment cost has been desired.

Therefore, in order to reduce the facility cost, it is conceivable to implement the logic for the train detection determination and the indication determination implemented by the relay connection circuit instead of a program. According to this program logic, train detection determination and indication determination can be performed without using the relay connection circuit, and it is expected that the facility cost will be reduced.

FIG. 4 shows a schematic configuration of a train detection device 300 that realizes train detection determination and indication determination by a program. As shown in FIG. 4, the train detection device 300 includes a No. 1 system logical determination unit 230 and a No. 2 system logical determination unit 24 connected to the No. 1 system transmitting / receiving unit 210 and the No. 2 system transmitting / receiving unit 211, respectively.
No. 1 system logical determination unit 230 includes No. 1 series vehicle detection determination unit 232, No. 1 system display determination unit 233, etc.
The No. 2 system vehicle logic determination unit 240 is the No. 2 train detection detection unit 24.
It is configured to include a No. 2 and No. 2 system presentation determination unit 243 and the like.

The No. 1 system logic judgment unit 230 is output from the train detection unit 210a included in the No. 1 system transmission / reception unit 210.
Based on the T-IN1 signal and the 1T-OUT1 signal, the presence / absence line of the train 10 of the loop coil 1T is determined based on a program having the same logic as a conventional relay connection circuit (hereinafter, referred to as a train detection program B) 1 In addition to including the number-series vehicle detection determination unit 232, a signal indicating the determination result by the number-one vehicle detection determination unit 232 and a TR condition in the front loop coil 2T (that is, 2TR described later).
It is provided with a No. 1 system announcement judging unit 233 which makes a train announcement judgment according to a predetermined program based on one signal).

The No. 2 system logic judgment unit 240 outputs 1 from the train detection unit 211a included in the No. 2 system transmission / reception unit 211.
A train No. 2 train detection judging unit 242 for judging the presence / absence of the train 10 of the loop coil 1T on the basis of the train detection program B based on the T-IN2 signal and the 1T-OUT2 signal is provided, and the train No. 2 is also provided. Affiliated vehicle detection determination unit 24
A signal indicating the determination result of 2 and the front loop coil 2T
The system 2 system determination unit 243 is configured to determine the train system according to the same program as the system 1 system determination unit 233 based on the TR condition (i.e., the 2TR1 signal).

Here, the above-mentioned 1T-IN2 signal, 1T-O
The UT2 signal is the same signal as the 1T-IN1 signal and the 1T-OUT1 signal. That is, the train detection unit 2
Both 10a and 211a transmit and receive the same signal, and are configured so that the system does not go down even if one of the train detection unit 210a and the train detection unit 211a fails.

For simplification of description, FIG. 4 shows the train detection device 300 including the 1-series car detection determination units 232 and 1
No. system display determination unit 233 and No. 2 series vehicle detection determination unit 24
Only the No. 2 and No. 2 system presentation determination units 243 are shown, and the illustration and description of the logic determination unit and the presentation determination unit in each transmission / reception unit connected to another loop coil are omitted.

Further, the first-series vehicle detection determination units 232 and 2
For the sake of convenience of explanation, the relay connection circuit shown in the number-series vehicle detection determination unit 242 schematically shows the contents of the train detection program B in the number-one vehicle detection determination unit 232 and the number-two vehicle detection determination unit 242. Therefore, the first-series vehicle detection determination unit 232 and the second-series vehicle detection determination unit 242 are not mounted.

Here, the No. 1 vehicle detection determination unit 23 in FIG.
A relay connection circuit equivalent to the train detection program B, which is schematically shown in the No. 2 and 2 train detection detection unit 242, will be described. The relay connection circuit in the No. 1 series vehicle detection determination unit 232 is a 1T-IN1 signal input relay 232a, 1T-O.
UT1 signal input relay 232b, 1TR1 signal input relay 232c, 2TR1 signal input relay 232d, 2T-
A train detection logic based on the train detection program B is represented by the relay connection circuit, which is configured by including each input relay of the OUT1 signal input relay 232e.

That is, the No. 1 vehicle detection determination unit 232
Is a 1TR1 signal indicating the presence / absence of the train 10 in the loop coil 1T based on the signals input to the respective input relays and the train detection logic (“Low” signal when the train is present, “Train signal when not present”). High ”signal)
The signal is output via the 1TR1 signal output relay 232g.

The 1T-IN1 signal input relay 232a outputs the 1 output from the 1T-IN1 signal output relay 231a.
The T-IN1 signal is input, and the 1T-OUT1 signal input relay 232b receives the 1T-OUT1 signal output relay 23.
1T-OUT1 signal output from 1b is input,
The 1TR1 signal immediately before the current time output from the 1TR1 signal output relay 232g is input to the TR1 signal input relay 232c.

The 2TR1 signal input relay 232d is supplied with the 2TR1 signal ("Low" signal when the train is present and "High" signal when the train is not present) indicating the presence / absence of the train 10 in the loop coil 2T, 2T-OUT
The 1-signal input relay 232e has a 2T-OUT1 signal indicating whether or not the transmitter 10b is present in the loop coil 2T (“High” signal when present, “Lo” when not present).
w "signal) is input.

Here, the 2TR1 signal is output from a train detection determination unit (not shown) of the loop coil 2T (corresponding to the No. 1 train detection determination unit 232 of the loop coil 1T), and the 2T-OUT1 signal is the loop coil. Output relay from a train detection unit (not shown) in 2T (1T-IN1 signal output relay 231a and 1T-OUT1 signal output relay 231b in loop coil 1T)
Corresponding to the 1TR1 signal and 1T-OUT1 signal related to the loop coil 1T, respectively.

The relay connection circuit in the No. 2 series vehicle detection determination section 242 is a 1T-IN2 signal input relay 242a,
1T-OUT2 signal input relay 242b, 1TR2 signal input relay 242c, 2TR2 signal input relay 242
d) Each input relay of the 2T-OUT2 signal input relay 242e is provided and the train connection logic based on the train detection program B is expressed by the relay connection circuit.

That is, the No. 2 vehicle detection determination unit 242.
Is a 1TR2 signal indicating the presence / absence of the train 10 in the loop coil 1T based on the signals input to the respective input relays and the train detection logic (“Low” signal when the train is present, “1” when not present). High ”signal)
The signal is output via the 1TR2 signal output relay 242g. Here, the 1TR2 signal output relay 242g is provided with a self-holding contact, and the state of the contact (on / off state) is held until the input signal is switched.

The 1T-IN2 signal input relay 242a outputs 1 output from the 1T-IN2 signal output relay 241a.
The T-IN2 signal is input, and the 1T-OUT2 signal input relay 242b receives the 1T-OUT2 signal output relay 24.
1T-OUT2 signal output from 1b is input,
The 1TR2 signal immediately before the current time output from the 1TR2 signal output relay 242g is input to the TR2 signal input relay 242c.

The 2TR2 signal input relay 242d receives the 2TR2 signal ("Low" signal when the train is present and "High" signal when the train is not present) indicating the presence / absence of the train 10 in the loop coil 2T, 2T-OUT
The 2 signal input relay 242e has a 2T-OUT2 signal indicating whether or not the transmitter 10b is present in the loop coil 2T (“High” signal when present, “Lo” when not present).
w "signal) is input.

Here, the 2TR2 signal is output from a train detection determination section (not shown) of the loop coil 2T (corresponding to the No. 2 train detection determination section 242 of the loop coil 1T), and the 2T-OUT2 signal is the loop coil. An output relay from a train detection unit (not shown) in 2T (1T-IN2 signal output relay 241a and 1T-OUT2 signal output relay 241b in loop coil 1T)
Corresponding to the 1TR2 signal and 1T-OUT2 signal of the loop coil 1T, respectively.

However, the train detection device 300 which performs the train detection determination and the indication determination in the new transportation system based on the programs in the No. 1 system logic determination unit 230 and the No. 2 system logic determination unit 240 has the following problems. was there. That is, 1T is used for the indication determination in the rear loop coil 0T.
Since the R1 signal is used, the 1TR1 signal is "L" when the train detection unit 210a included in the No. 1 system transmission / reception unit 210 fails.
However, there is a problem in that the rear loop coil OT has a lower code control that determines that the loop coil 1T is in the train, although it can function as a dual system.

When the power of the No. 2 system is turned on again, the No. 2 system waits 1T until the train 10 passes through the loop coil 1T.
The R2 signal is held as "Low". Therefore, if the No. 1 system fails during that time, the entire system will go down despite the normal operation of the No. 2 system whose power is turned on again, that is, the ATC stop signal will be output when the No. 1 system fails. Since it is output, there was a problem that the train 10 would stop even though the No. 2 system was normal.

An object of the present invention is to provide a train detection device and a train detection method in a new transportation system, which relays are used in a large number in train detection judgment and indication judgment while maintaining the function and safety of the conventional train detection device. It is to reduce the equipment cost to be spent on.

[0069]

The present invention has the following features in order to solve such problems. In the following description of the means, the configuration corresponding to the embodiment will be shown in parentheses as an example. Reference numerals and the like are reference numerals and the like of the drawings described later.

According to the first aspect of the present invention, for each closed section (for example, the loop coils 0T to 2T shown in FIG. 3), the cable runs from one end of the closed section to the other end on a track provided with a cable. First transmission means (for example, FIG. 3) that is disposed in the front part of the train (for example, the train 10 shown in FIG. 3) and that transmits a signal indicating the presence of the train front part on a cable on which the train front part is located. 10a) shown in FIG. 2 and a second transmission means (for example, the transmitter shown in FIG. 3) which is arranged at the rear of the train and transmits a signal indicating the on-rail of the rear of the train on a cable on which the rear of the train is located. 10b) and first detection means installed for each of the cables to detect the presence or absence of a signal transmitted from the first and second transmission means via the cable (for example, the train detection section 111 shown in FIG. 1). And each cable is installed In addition to the first detection means, a second detection means (for example, the train detection unit 121 shown in FIG. 1) that detects the presence or absence of a signal transmitted from the first and second transmission means via the cable is provided. A train detection device for determining whether there is a train on the cable based on the detection results of the first and second detection means and detecting the presence or absence of a train on the cable based on the determination result ( For example, in the train detection device 100) shown in FIG. 1, the train installed on the track and the train on each of the cables is based on the logical sum of the detection result by the first detection means and the detection result by the second detection means. First determination means (for example, No. 1 series vehicle detection determination unit 13 shown in FIG. 1) for determining whether the vehicle is on-track or non-tracked
0) and the train installed on the track based on the logical sum of the detection result by the first detection means and the detection result by the second detection means, separately from the first determination means. And a second determination means (for example, a No. 2 train detection determination unit 140 shown in FIG. 1) for determining whether the train is on-line or not-on-rail, and the first and second determination means are trains on each of the cables immediately before the present time. A logical sum of the determination results of the presence / absence of a line (for example, the OR processing of the 1TR1 signal input to the 1TR1 signal input relay 133b and the 1TR2 signal input to the 1TR2 signal input relay 133a shown in FIG. 1), At present, the logical sum of the detection results by the first and second detection means (for example, the 1T-IN1 signal and the 1T-IN2 signal input to the 1T-IN1 signal input relay 131a shown in FIG. 1 is input. 1T to be input to the relay 131b
-OR processing with IN2 signal), the presence / absence line of the train on each of the cables at present is determined.

According to the first aspect of the invention, for each closed section, the closed section is arranged in the front part of the train running on the track where the cable is laid from one end to the other end of the closed section, A first transmission means for transmitting a signal indicating the presence of a train at the front of the train on a cable where the front is located, and a presence of the presence of the train at the rear of the train on a cable where the rear of the train is located. Second transmission means for transmitting the signal shown, first detection means installed for each of the cables, for detecting the presence or absence of a signal transmitted from the first and second transmission means via the cable, and each of the cables And a second detection means for detecting the presence or absence of a signal transmitted from the first and second transmission means via the cable, the first and second detection means being provided separately from the first detection means. Based on the detection result by the detection means In the train detection device for determining whether the train on the cable is present or not and detecting the presence or absence of the train on the cable based on the determination result, the first determination means is installed on the track, and Based on the logical sum of the detection result by the detection means and the detection result by the second detection means, the presence / absence of a train on each of the cables is determined, and the second determination means is installed on the track, and In addition to the first determining means, the presence / absence of a train on each of the cables is determined based on a logical sum of the detection result of the first detecting means and the detection result of the second detecting means. The second determination means is based on a logical sum of the determination results of the presence / absence of the train on each of the cables immediately before the current time and a logical sum of the detection results of the first and second detection means at the current time. At the moment It takes the determined rail and non-rail train on each cable.

According to a second aspect of the present invention, in the first aspect of the present invention, the first determination means is a logical sum of detection results of the first and second detection means at present (for example,
OR processing of the 1T-IN1 signal input to the 1T-IN1 signal input relay 131a and the 1T-IN2 signal input to the 1T-IN2 signal input relay 131b shown in FIG.
And OR processing of the 1T-OUT1 signal input to the 1T-OUT1 signal input relay 132a and the 1T-OUT2 signal input to the 1T-OUT2 signal input relay 132b), and the first and second determination means immediately before the present time. The logical sum of the judgment results of the presence / absence of a train on the cable according to (for example, 1TR1 signal input relay 1 shown in FIG.
OR processing of 1TR1 signal input to 33b and 1TR2 signal input to 1TR2 signal input relay 133a)
And a determination result of the presence / absence of a train on the cable laid in front of the cable by the first determination means at the present time (for example, a 2TR1 signal input to the 2TR1 signal input relay 133c shown in FIG. 1), Based on the above, when the signal transmitted from the first or second transmitting means is detected by the first or second detecting means at the present time, it is determined that the train is currently on the cable, and the first And when the signal transmitted from the second transmission means is not detected at the present time, and further when the train is not on the cable immediately before the current time, or when the train is on the cable immediately before the current time. If there is a current line on the cable laid in front of the cable,
It is determined that the train is not present on the cable at the present time, and the second determining means determines the logical sum of the current detection results by the first and second detecting means (for example, 1T shown in FIG. 1).
-1T-I input to IN2 signal input relay 141a
OR processing of N2 signal and 1T-IN1 signal input to 1T-IN1 signal input relay 141b, and 1T-OU
1T-OUT input to the T2 signal input relay 142a
OR signal between the 2 signal and the 1T-OUT1 signal input to the 1T-OUT1 signal input relay 142b) and the determination result of the presence / absence of the train on the cable by the first and second determination means immediately before the present time. Or (for example,
1TR2 input to 1TR2 signal input relay 143b
1 input to the signal and 1TR1 signal input relay 143a
OR processing with the TR1 signal) and the determination result of the presence / absence of a train on the cable laid in front of the cable by the second determination means at the present time (for example, to the 2TR2 signal input relay 143c shown in FIG. 1). 2TR input
2 signal), if the signal transmitted from the first or second transmitting means is detected by the first or second detecting means at the present time, it is determined that the train is currently on the cable. , When the signals transmitted from the first and second transmission means are not detected at the present time, and further when the train is not on the cable immediately before the current time, or when the train is immediately before the current time. A feature of the present invention is that, when the train is present on the cable and is currently on the cable laid in front of the cable, it is determined that the train is not currently present on the cable.

According to a third aspect of the present invention, for each closed section, the first transmission means arranged in the front part of the train running on the track where the cable is laid from one end to the other end of the closed section. From the step of transmitting a signal indicating the on-rail line of the train front part on the cable on which the train front part is located, and from the second transmission means arranged at the rear part of the train, on the cable where the train rear part is located. A step of transmitting a signal indicating the on-rail line at the rear of the train, and the first detecting means installed for each cable detects the presence or absence of a signal transmitted from the first and second transmitting means via the cable. And a step of detecting the presence or absence of a signal transmitted from the first and second transmission means via the cable, the second detection means being provided for each cable separately from the first detection means. Including and
In the train detection method, the presence / absence of a train on the cable is determined based on the detection results by the first and second detection means, and the presence / absence of a train on the cable is detected based on the determination result. A step in which the first determining means installed on the track determines the presence / absence of a train on each of the cables based on a logical sum of the detection result of the first detecting means and the detection result of the second detecting means. And the second determination means installed on the track, in addition to the first determination means, based on the logical sum of the detection result by the first detection means and the detection result by the second detection means. A step of determining the presence / absence of an upper train, wherein the steps by the first and second determining means are a logical sum of the determination results of determining the presence / absence of the train on each cable immediately before the present time. When, Based on the logical sum of the detection results by the first and second detecting means at the time, and judging the rail and non-rail train on each cable at the present time.

According to the third aspect of the present invention, for each closed section, the first section is provided at the front part of the train running on the track where the cable is laid from one end to the other end of the closed section.
On the cable on which the train front part is located, the signal indicating the presence of the train on the front part of the train is transmitted from the transmission means, and on the cable on which the rear part of the train is located, from the second transmission means arranged at the rear part of the train. A signal indicating the presence of a train at the rear of the train is transmitted, and the first detection means installed for each cable detects the presence or absence of a signal transmitted from the first and second transmission means via the cable, The second detecting means installed for each of the cables separately from the first detecting means includes the first detecting means.
And detecting the presence or absence of a signal transmitted from the second transmitting means via the cable, and determining the presence / absence of a train on the cable based on the detection results by the first and second detecting means, and In the train detection method for detecting the presence or absence of a train on the cable based on the determination result, the first determination means installed on the track has a detection result by the first detection means and a detection result by the second detection means. The presence / absence of a train on each of the cables is determined based on the logical sum of the above, and the second determination means installed on the track has a detection result obtained by the first detection means separately from the first determination means. Based on the logical sum of the detection result by the second detection means and the presence / absence of the train on each cable, and the first and second determination means determine the train on each cable immediately before the present time. The presence / absence of a train on each of the cables at the present time is determined based on the logical sum of the determination results of the presence / absence of the train and the logical sum of the detection results of the first and second detection means at the present time. To do.

According to a fourth aspect of the invention, in the invention according to the third aspect, the step of the first determining means is the first step.
And the logical sum of the detection results at the present time by the second detection means, and the logical sum of the determination results of the presence or absence of the train on the cable by the first and second determination means immediately before the present time and the first at the present time. The signal transmitted from the first or second transmission means is based on the determination result of the presence / absence of a train on the cable laid in front of the cable by the determination means, and the first or second detection means. When it is detected at this time by, it is determined that the train is currently on the cable, and when the signals transmitted from the first and second transmission means are not detected at this time,
Furthermore, if the train is not on the cable immediately before the current time, or if the train is on the cable immediately before the current time and is currently on the cable laid in front of the cable, It is determined that the train is not present on the cable at the present time, and the step by the second determining means is the logical sum of the current detection results by the first and second detecting means and the first and the second immediately before the current time. 2 The logical sum of the judgment result of the presence / absence of the train on the cable by the judging means and the judgment result of the presence / absence of the train on the cable laid in front of the cable by the second judging means at the present time The signal transmitted from the first or second transmitting means is based on
When detected by the detection means at the present time, it is determined that the train is presently on the cable at the present time, and when the signals transmitted from the first and second transmission means are not detected at the present time, the train is further If the train was not on the cable immediately before the current time, or if the train was on the cable immediately before the current time and is currently on the cable laid in front of the cable, the train is currently It is characterized in that it is determined that the cable is not present on the cable.

Therefore, according to the invention described in claims 1 to 4, it is possible to make a normal determination even when either one of the first and second detecting means fails. Therefore, the presence / absence of the train on the cable on the cable is normal in the faulty first or second detecting means, and it is possible to avoid the influence on the display determination in the rear cable based on the determination result. . Further, of the first or second detection means, for example, when the power of the first detection means is turned on again, before and after the power is turned on, the other second detection means determines whether the train is present or not. Therefore, even if the second detection means fails after the power is turned on, the presence / absence of a train is normally determined. Further, the logic for determining the presence / absence of a train in the first and second determining means can be realized by a program without using a plurality of relays used in the conventional train detection device, so that the facility cost can be reduced. In addition to reducing the number of times, it is sufficient to simply rewrite the program when changing the above logic, and a highly versatile train detection device can be realized.

[0077]

BEST MODE FOR CARRYING OUT THE INVENTION A train detecting device 100 to which the present invention is applied will be described in detail below with reference to FIGS. 1 and 2. FIG. 1 is a diagram showing a schematic configuration of a train detection device 100 to which the present invention is applied.

As shown in FIG. 1, the train detection device 100.
Includes a No. 1 system transceiver unit 110 and a No. 2 system transceiver unit 120 connected to the loop coil 1T shown in FIG.
Based on the check-in and check-out signals transmitted from the 0 transmitters 10a and 10b through the loop coil 1T, the train detection determination and the display determination in the loop coil 1T are performed.

In addition to the first system transmitter / receiver 110,
A dual system based on fail-safe is realized by further including the signal transmission / reception unit 120.

The train detection device 100 includes a No. 1 transmission / reception unit 1
10, 2 system transceiver 120, 1 car detection determination unit 1
It is configured to include a No. 30 and No. 2 series vehicle detection determination unit 140 and the like. In addition, the system 1 transceiver 110 and the system 2 transceiver 1
Reference numeral 20 denotes an optical L configured by an optical LAN cable for serial communication together with the interlocking device 150 and the other device 160.
It is inserted into the ANs 11 and 12 and has a configuration capable of mutual exchange of information.

Here, the interlocking device 150 is provided with a rolling conversion locking device, an interlocking device, etc., and the other device 160 is an external device provided with an alarm device and the like.

In the present embodiment, the train detection device 1
00, the 1st system transmitter / receiver 110, the 2nd system transmitter / receiver 120, the 1st group vehicle detection determination unit 130, the 2nd group vehicle detection determination unit 140, and the like in the loop coil 1T are shown and described. The transceivers and train detection determination units in the other loop coils are the same as in the case of the loop coil 1T, so the illustration and description of the transceivers and train detection determination unit in these other loop coils are omitted.

The No. 1 system transmitter / receiver 110 is the train detector 11
1 and ATC transmitter 112.

The No. 1 system transmitter / receiver 110 is the train detector 11
The check-in and check-out signals received by 1 are digital signals (hereinafter, 1T-IN1 signal, 1
1T-IN1 signal output relay 110a and 1T-IN1 signal output relay 110b, respectively.
It outputs the T-OUT1 signal.

The ATC transmission unit 112 modulates the ATC signal output from the unillustrated presentation determination unit having the same configuration as the No. 1 system presentation determination unit 233 shown in FIG. 4 into a signal wave of a predetermined frequency and loops it. Send to coil 1T.

The No. 2 system transmitting / receiving unit 120 constitutes a dual system with the No. 1 system transmitting / receiving unit 110, and the train detecting unit 12
1 and the ATC transmission unit 122.

The No. 2 system transmitter / receiver 120 is the train detector 12
Both check-in and check-out signals received by the digital signal No. 1 are digital signals (hereinafter, 1T-IN2 signal, 1
(T-OUT2 signal), and the 1T-IN2 signal, 1T-IN2 signal output relay 120a, 1T-OUT2 signal output relay 120b, respectively.
It outputs the T-OUT2 signal.

The ATC transmission unit 122 is the first system transmission / reception unit 1
When the ATC transmission unit 112 included in the device 10 malfunctions, FIG.
The ATC signal output from the not-shown signal determination unit having the same configuration as the No. 2 system signal determination unit 243 shown in FIG. 2 is modulated into a signal wave of a predetermined frequency and transmitted to the loop coil 1T. That is, the ATC transmitter 122 is the first system transmitter / receiver 1
10 is a backup of the ATC transmission unit 112 included in 10.

The optical LANs 11 and 12 are the first-system transmitting / receiving section 1
Optical transmission / reception unit 120, interlocking device 150, other device 160, and train 10 are connected in a loop to form an optical LA.
Information is freely exchanged via N11 and N12.

The optical LAN 11 carries the above-mentioned 1T-IN1 signal, 1T-OUT1 signal relating to the 1st system transmitting / receiving section 110, and a 1TR1 signal which will be described later.
Carries the 1T-IN2 signal, the 1T-OUT2 signal, the 1TR2 signal described later, and the like related to the No. 2 system transmitting / receiving section 120.

The No. 1 series vehicle detection determination section 130 includes a built-in CPU 135 and memory (not shown), and the CPU 13
In FIG. 1, reference numeral 5 denotes a first-series vehicle detection determination unit 130 and 2
A program equivalent to the relay connection circuit shown in the number-series vehicle detection determination unit 140 (hereinafter referred to as train detection program A)
Based on the above, the train detection determination in the loop coil 1T is performed, and the determination result (that is, the loop coil 1T
A bit signal (hereinafter, referred to as 1TR1 signal) indicating whether or not the train 10 is present at T is output. The train detection program A is stored in the built-in memory in advance.

Here, the 1TR1 signal is a "Low" signal when the train 10 is on the loop coil 1T and is a "High" signal when the train 10 is not present.

The No. 2 train detection / determination unit 140 has a built-in CPU 145 and memory (not shown).
5 performs a train detection determination in the loop coil 1T based on the train detection program A, and a bit signal indicating the determination result (that is, whether or not the train 10 is in the loop coil 1T) (hereinafter, 1TR2 signal). The train detection program A is stored in the built-in memory in advance.

Here, the 1TR2 signal is a "Low" signal when the train 10 is on the loop coil 1T, and a "High" signal when the train 10 is not present.

In the train detection program A, the 1st train detection detection unit 130 determines that the 1T-IN1 signal,
1T-OUT1 signal, 1T-IN2 signal, 1T-OUT
In addition to 2 signals, 1TR1 signal, 1TR2 signal, 2TR showing presence / absence of train 10 in loop coil 2T
1 signal (corresponding to the above 1TR1 signal in the loop coil 1T) and 2T-OUT1 signal (corresponding to the above 1T-OUT1 signal in the loop coil 1T) indicating whether or not the transmitter 10b of the train 10 is present in the loop coil 2T The presence / absence of the train 10 in the loop coil 1T is determined based on various signals.

In the train detection program A, the train No. 2 train detection judgment section 140 determines that the 1T-IN1 signal,
1T-OUT1 signal, 1T-IN2 signal, 1T-OUT
2 signals, 1TR1 signal, 1TR2 signal, and 2 showing the presence / absence of train 10 in loop coil 2T
Various TR2 signals (corresponding to the 1TR2 signal in the loop coil 1T) and 2T-OUT2 signals (corresponding to the 1T-OUT2 signal in the loop coil 1T) indicating whether the train 10 of the train 10 is present in the loop coil 2T The presence / absence of the train 10 in the loop coil 1T is determined based on the signal.

For convenience of explanation, the relay wiring circuits shown in the No. 1 train detection detection unit 130 and No. 2 train detection determination unit 140 in FIG. 1 schematically show the contents of the train detection program A. Therefore, the first-series vehicle detection determination unit 130 and the second-series vehicle detection determination unit 140 are not mounted.

Here, a relay connection circuit equivalent to the train detection program A shown in the No. 1 train detection detection unit 130 and No. 2 train detection determination unit 140 in FIG. 1 will be described. The relay connection circuit in the No. 1 series vehicle detection determination unit 130 is composed of 1T-IN1 signal input relays 131a and 1T-I.
A parallel circuit 1A in which an N2 signal input relay 131b is connected in parallel and a parallel circuit 2A in which a 1T-OUT1 signal input relay 132a and a 1T-OUT2 signal input relay 132b are connected in parallel are provided.

Further, the relay connection circuit in the No. 1 series vehicle detection determination unit 130 is the 1TR2 signal input relay 13
Parallel circuit 3A in which 3a and 1TR1 signal input relay 133b are connected in parallel, and 2TR1 signal input relay 133
A series circuit 4A in which c and the 2T-OUT1 signal input relay 133d are connected in series, and a circuit 5A in which the parallel circuit 3A and the series circuit 4A are connected in parallel are provided.

Further, the relay connection circuit in the first-series car detection determination unit 130 is configured by connecting the parallel circuit 1A, the parallel circuit 2A, and the circuit 5A in series, and the train connection program by the relay connection circuit is used. Train detection logic based on A is represented.

The relay connection circuit in the No. 2 train detection / determination unit 140 includes a parallel circuit 1B in which a 1T-IN2 signal input relay 141a and a 1T-IN1 signal input relay 141b are connected in parallel, and a 1T-OUT2 signal input relay. 1
42a and a 1T-OUT1 signal input relay 142b are connected in parallel with a parallel circuit 2B.

Further, the relay connection circuit in the above-mentioned No. 2 series vehicle detection determination section 140 is the 1TR1 signal input relay 14
Parallel circuit 3B in which 3a and 1TR2 signal input relay 143b are connected in parallel, and 2TR2 signal input relay 143
A series circuit 4B in which c and the 2T-OUT2 signal input relay 143d are connected in series, and a circuit 5B in which the parallel circuit 3B and the series circuit 4B are connected in parallel are provided.

Further, the relay connection circuit in the No. 2 train detection detection section 140 is configured by connecting the parallel circuit 1B, the parallel circuit 2B, and the circuit 5B in series, and the train connection program by the relay connection circuit is used. Train detection logic based on A is represented.

In the No. 1 series vehicle detection determination unit 130, 1
The T-IN1 signal input relay 131a has 1T-IN1
The 1T-IN1 signal output from the signal output relay 110a is input, the 1T-IN2 signal output from the 1T-IN2 signal output relay 120a is input to the 1T-IN2 signal input relay 131b, and the 1T-OUT1 signal input The 1T-OUT1 signal output from the 1T-OUT1 signal output relay 110b is input to the relay 132a.

Further, in the No. 1 vehicle detection determination unit 130, the 1T-OUT2 signal input relay 132b has 1T.
-1T output from the OUT2 signal output relay 120b
-OUT2 signal is input and 1TR2 signal input relay 1
The 1TR2 signal output from the 1TR2 signal output relay 144 is input to 33a, and the 1TR1 signal output from the 1TR1 signal output relay 134 is input to the 1TR1 signal input relay 133b.

Further, in the No. 1 series vehicle detection determining section 130, the 2TR1 signal input relay 133c is connected to the 2TR
1 signal (“Low” signal for existing line, “H” for non-existing line)
High signal) is input, and the 2T-OUT1 signal input relay 133d is input with the 2T-OUT1 signal ("High" signal when the line is present and "Low" signal when the line is not present).

Here, the 2TR1 signal shown in FIG.
A train detection determination unit (not shown) in the loop coil 2T (a first-series car detection determination unit 13 in the loop coil 1T)
(Corresponding to 0). The 2T shown in FIG.
-OUT1 signal is 1T-OUT1 signal input relay 13
2T-O not shown in the loop coil 2T corresponding to 2a and 1T-OUT2 signal input relay 132b, respectively.
It is a signal indicating a logical sum of the output signal of the UT1 signal input relay and the output signal of the 2T-OUT2 signal input relay.

In the No. 2 train detection / determination unit 140, 1
The T-IN2 signal input relay 141a has 1T-IN2
The 1T-IN2 signal output from the signal output relay 120a is input, the 1T-IN1 signal output from the 1T-IN1 signal output relay 110a is input to the 1T-IN1 signal input relay 141b, and the 1T-OUT2 signal input The 1T-OUT2 signal output from the 1T-OUT2 signal output relay 120b is input to the relay 142a.

Further, in the No. 2 train detection determination section 140, the 1T-OUT1 signal input relay 142b has 1T.
-1T output from the OUT1 signal output relay 110b
-OUT1 signal is input and 1TR1 signal input relay 1
43a receives the 1TR1 signal output from the 1TR1 signal output relay 134, and the 1TR2 signal input relay 143b receives the 1TR2 signal input from the 1TR2 signal output relay 144.

Further, in the No. 2 train detection / determination unit 140, the 2TR2 signal input relay 143c is connected to the 2TR
2 signals (“Low” signal when there is a line, “H” when there is no line)
2T-OUT2 signal input relay 143d receives the 2T-OUT2 signal ("High" signal when the line is present and "Low" signal when the line is not present).

Here, the 2TR2 signal shown in FIG.
A train detection determining unit (not shown) in the loop coil 2T (the No. 2 train detection determining unit 14 in the loop coil 1T)
(Corresponding to 0). The 2T shown in FIG.
-OUT2 signal is 1T-OUT2 signal input relay 14
2T-O not shown in the loop coil 2T respectively corresponding to 2a and 1T-OUT1 signal input relay 142b
It is a signal indicating a logical sum of the output signal of the UT1 signal input relay and the output signal of the 2T-OUT2 signal input relay.

That is, the first-series vehicle detection determination unit 130
Is a 1TR1 signal indicating the presence / absence of the train 10 in the loop coil 1T based on the signal input to the name input relay and the train detection logic (“Low” signal in the presence of the train, “1” in the absence of the line). High ”signal)
The signal is output via the 1TR1 signal output relay 134. Further, the No. 2 train detection determining unit 140, based on the signal input to the name input relay and the train detection logic, the 1TR2 signal indicating the presence / absence of the train 10 in the loop coil 1T (in the case of presence of the train). The “Low” signal, and the “High” signal in the case of non-existence line) is output via the 1TR2 signal output relay 144.

Next, the operation of the train detection device 100 will be described. FIG. 2 is a flowchart illustrating a train detection determination process in the train detection device 100.

Train detection determination processing based on the flowchart shown in FIG. 2 is performed by executing the train detection program A by the built-in CPUs 135 and 145 of the No. 1 series vehicle detection determination section 130 and the No. 2 series vehicle detection determination section 140. Be seen.

The train detection process executed by the built-in CPU 135 of the No. 1 train detection detection unit 130 will be described below with reference to the flowchart shown in FIG. The processing contents of the CPU 135, which will be described below, are the 2nd-series car detection determination unit 1
The processing contents are the same as those executed by the built-in CPU 145 of the CPU 40. Therefore, the description of the detection processing executed by the CPU 145 is omitted.

First, the CPU 135 executes the train detection program A
The program is read into an execution memory area (not shown) included in the PU 135, and execution of the train detection program A is started.

Next, the CPU 135 determines the 1st system transmitting / receiving section 1
1T-IN1 signal and 1T-OUT1 output by the train detection unit 111 based on whether or not the train detection unit 111 included in 10 receives the check-in and check-out signals.
It is determined whether the signal is "High" or "Low" (step S10). That is, when the train detection unit 111 receives the check-in signal, the 1T-IN1 signal is "Low", and when not received, it is "High".
Is.

When the train detector 111 receives the checkout signal, the 1T-OUT1 signal becomes "High".
It is "h" and "Low" when it is not received.

Further, in parallel with the processing in the above step 10, the built-in CPU 14 of the No. 2 train detection determination unit 140
5 is "H" of 1T-IN2 signal and 1T-OUT2 signal
"high" or "Low" is determined based on whether or not the train detection unit 121 included in the No. 2 system transmission / reception unit 120 receives the check-in and check-out signals.

Next, the CPU 135 causes the train detector 1 to operate.
The 1T-IN2 signal and the 1T-OUT2 signal whose “High” or “Low” is determined by 21 and the 1T immediately before the current time output from the No. 2 train detection determination unit 140
The R2 signal is read via the optical LAN 12 (step S11).

Next, the CPU 135 performs an OR process between the 1T-IN1 signal, which is determined to be "High" or "Low" in step S10, and the 1T-IN2 signal, which is read in step S11, and
An OR process between the 1T-OUT1 signal, which is determined to be "High" or "Low" in step S10, and the 1T-OUT2 signal, which is read in step S11, and the 1TR1 signal immediately before the current time, An OR process with the 1TR2 information read in step S11 is performed (step S12).

Next, the CPU 135 determines the loop coil 1 based on the result of each OR processing in step S12.
It is determined whether or not the train is located at T. If it is determined that the train is located at 1T, the 1TR1 signal is set to "Low" and output, and if it is determined that the train is not located at 1TR, the 1TR1 signal is output.
1 signal is set to "High" and output (step S
13).

Next, the CPU 135 makes a determination of either "High" or "Low" in step S13 1
The TR1 signal and “High” in step S10,
1T-IN1 signal and 1 determined to be “Low”
The T-OUT1 signal is transmitted to the optical LAN 11 via the No. 1 system transmitting / receiving unit 110 (step S14), and the 1TR1 signal is output to the unillustrated presentation determination device provided in the subsequent stage.

Next, the built-in CPU 135 of the No. 1 series vehicle detection determination unit 130 explained based on the above flow chart.
The train detection process executed by will be described in more detail according to the on-rail position of the train 10.

First, the case where the train 10 is not in the loop coil 1T (that is, the transmitters 10a, 10b are in the loop coil 0T) will be described. Since the train detectors 111 and 121 do not receive the check-in and check-out signals transmitted from the transmitters 10a and 10b, the CPU 135 sets the 1T-IN1 signal to "High" and the 1T-OUT1 signal to "Low". And the CPU 145 sets the 1T-IN2 signal to "H
Then, the 1T-OUT2 signal is set to "Low" (step S10).

Further, since the CPUs 135 and 145 do not have the train 10 in the loop coil 1T immediately before,
The 1TR1 signal and the 1TR2 signal are set to "High".

Next, the CPU 135 causes the above "High"
The 1T-IN2 signal, 1T-OUT2 signal, and 1TR2 signal in the "h", "Low", and "High" states are transmitted to the optical LAN 1
It is read via 2 (step S11).

Next, the CPU 135 OR-processes the 1T-IN1 signal and the 1T-IN2 signal in the "High" state, and as a result, the data "1" indicating "High" is sent to the CPU.
The 1T-OUT1 signal and 1T-OU in the "Low" state are stored in an IN register (not shown) of the 135.
The T2 signal is OR-processed, and as a result, data "0" indicating "Low" is stored in an OUT register (not shown) included in the CPU 135, and "High" immediately before the current time.
The 1TR1 signal and the 1TR2 signal in the state are OR-processed, and as a result, the data “1” indicating “High” is transferred to the CPU 135.
The data is stored in a TR register (not shown) included in (step S12).

Next, the CPU 135 performs 1T based on the result stored in each of the registers in step S12.
The R1 signal and the 1TR2 signal are set to "High" (step S13), and the 1TR1 is set to "High".
The signal and the 1T-IN1 signal in the “High” state and the 1T-OUT1 signal in the “Low” state are transmitted to the optical LAN 1
It is output to the No. 2 system transmitting / receiving unit 120 via 1 (step S14).

Next, when the train 10 advances to the loop coil 1T and the train 10 is in a state of straddling the loop coils 0T and 1T (ie, the transmitter 10a is the loop coil 1T).
A case where the transmitter 10b is present at the loop coil 0T) will be described. When the check-in signal transmitted from the transmitter 10a is received by the train detection units 111 and 121 via the loop coil 1T, the CPU 135
Sets the 1T-IN1 signal to "Low", and 1T-O
The UT1 signal is held at "Low" and the CPU 14
5 sets the 1T-IN2 signal to "Low" and 1T-OU
The T2 signal is held at "Low" (step S10).

Further, since the CPUs 135 and 145 have no train 10 in the loop coil 1T immediately before,
The 1TR1 signal and 1TR2 signal immediately before the current time are set to “High”.
Hold at h ".

Next, the CPU 135 causes the "Low",
1T-IN2 signal in "Low" and "High" states, 1
The T-OUT2 signal and the 1TR2 signal are read via the optical LAN 12 (step S11).

Next, the CPU 135 OR-processes the 1T-IN1 signal and the 1T-IN2 signal in the "Low" state,
As a result, data “0” indicating “Low” is stored in the IN register, and 1T-OUT1 in the “Low” state is further stored.
The signal and the 1T-OUT2 signal are OR-processed, and as a result, data "0" indicating "Low" is stored in the OUT register, and further, 1 in the "High" state immediately before the current time.
The TR1 signal and the 1TR2 signal are OR-processed, and as a result, data "1" indicating "High" is stored in the TR register (step S12).

Next, the CPU 135 performs 1T based on the result stored in each of the registers in step S12.
The R1 signal and the 1TR2 signal are set to "Low" (step S13), and the "Low" 1TR1 signal and the 1T-IN1 signal and 1T in the "Low" state are set.
The -OUT1 signal is output to the No. 2 system transmitting / receiving unit 120 via the optical LAN 11 (step S14).

Next, the train 10 progresses further, and the train 10
Completely moves to the loop coil 1T (ie,
The case where both the transmitters 10a and 10b are present in the loop coil 1T will be described. When the check-in and check-out signals transmitted from the transmitters 10a and 10b are received by the train detection units 111 and 121 via the loop coil 1T, the CPU 135 holds the 1T-IN1 signal at "Low" and holds the 1T-IN1 signal. -OUT1 signal to "High"
At the same time, the CPU 145 holds the 1T-IN2 signal at "Low" and sets the 1T-OUT2 signal at "High".
h "(step S10).

Further, since the train 10 is in the loop coil 1T immediately before the current time, the CPUs 135 and 145 set the 1TR1 signal and the 1TR2 signal immediately before the current time to "Low".

Next, the CPU 135 causes the "Low",
1T-IN2 signal in "High" and "Low" states, 1
The T-OUT2 signal and the 1TR2 signal are read via the optical LAN 12 (step S11).

Next, the CPU 135 OR-processes the 1T-IN1 signal and the 1T-IN2 signal in the "Low" state,
As a result, the data “0” indicating “Low” is stored in the IN register, and further, 1T-OUT in the “High” state is stored.
1 signal 1T-OUT2 signal is OR-processed, and as a result, data "1" indicating "High" is stored in the OUT register. Furthermore, 1 in the "Low" state immediately before the current time is stored.
The TR1 signal and the 1TR2 signal are OR-processed, and as a result, "0" is stored in the TR register as data indicating "Low" (step S12).

Next, the CPU 135 performs 1T based on the result stored in the name register in step S12.
The R1 signal and the 1TR2 signal are held at “Low” (step S13) and the 1T held at the “Low”
The R1 signal, the 1T-IN1 signal in the “Low” state, and the 1T-OUT1 signal in the “High” state are transmitted to the optical LA.
The data is output to the No. 2 system transmitting / receiving unit 120 via N11 (step S14).

Next, the train 10 progresses further, and the train 10
Is in a state of straddling the loop coils 1T and 2T (that is, the transmitter 10a is in the loop coil 2T and the transmitter 10b is in the loop coil 1T). The train detectors 111 and 121 include the transmitter 10
The CPU 135 receives only the check-out signal transmitted from the transmitter 10b and does not receive the check-in signal transmitted from the transmitter 10a. Therefore, the CPU 135 changes the 1T-IN1 signal to "Hi".
GH ”and hold the 1T-OUT1 signal at“ High ”, and the CPU 145 sets the 1T-IN2 signal at“ H ”.
It is set to "high" and the 1T-OUT2 signal is held at "high" (step S10).

Further, the CPUs 135 and 145 hold the 1TR1 signal and 1TR2 signal immediately before the current time to "Low" because the train 10 is present in the loop coil 1T immediately before the current time.

Next, the CPU 135 causes the above "High"
The 1T-IN2 signal, 1T-OUT2 signal, and 1TR2 signal in the "h", "High", and "Low" states are transmitted to the optical LAN 1
It is read via 2 (step S11).

Next, the CPU 135 OR-processes the 1T-IN1 signal and the 1T-IN2 signal in the "High" state, and as a result, the data "1" indicating "High" is set to the I
It is stored in the N register, and 1T-in the "High" state
The OUT1 signal and the 1T-OUT2 signal are OR-processed, and as a result, data "1" indicating "High" is stored in the OUT register, and further, the 1TR1 signal and the 1TR2 signal in the "Low" state immediately before the current time are ORed. After processing, the data "0" indicating "Low" is stored in the TR register (step S12).

Next, the CPU 135 performs 1T based on the result stored in each of the registers in step S12.
The R1 signal and the 1TR2 signal are held at “Low” (step S13) and the 1T held at the “Low”
The R1 signal and the 1T-IN1 signal and the 1T-OUT1 signal in the “High” state are transmitted via the optical LAN 11 to the 2
The signal is output to the signal transmission / reception unit 120 (step S14).

Next, the train 10 progresses further and the train 10
Completely moves to the loop coil 2T (ie,
The case where the transmitters 10a and 10b are present in the loop coil 2T will be described.

The train detectors 111 and 121 are connected to the transmitter 10
Since the check-in and check-out signals transmitted from a and 10b are not received, the CPU 135 causes the 1T
The -IN signal is held at "High", the 1T-OUT signal is set at "Low", and the CPU 145 sets the 1T-I
The N2 signal is held at "Hihg" and the 2T-OUT signal is set to "Low" (step S10).

Here, since the train 10 has completely moved to the loop coil 2T, the above 2T-OUT1 signal, 2T
The R1 signals are "High" and "Low", respectively.

Further, the CPUs 135 and 145 hold the 1TR1 and 1TR2 signals immediately before the current time at "Low" because the train 10 is present in the loop coil 1T immediately before the current time.

Next, the CPU 135 causes the "High"
The 1T-IN2 signal, the 1T-OUT2 signal, and the 1TR2 signal in the "h", "Low", and "Low" states are transmitted to the optical LAN 1
It is read via 2 (step S11).

Next, the CPU 135 OR-processes the 1T-IN1 signal and the 1T-IN2 signal in the "High" state, and as a result, the data "1" indicating "High" is transferred to the I
It is stored in the N register, and 1T-O in the "Low" state
The UT1 signal and the 1T-OUT2 signal are OR-processed, and as a result, data "0" indicating "Low" is stored in the OUT register, and the 1TR1 signal and the 1TR2 signal in the "Low" state immediately before the current time are ORed. After processing, the data "0" indicating "Low" is stored in the TR register (step S12).

Next, the CPU 135 stores the data "High" stored in each of the above registers in step S12.
1TR1 signal and 1TR based on the 2T-OUT1 signal in the state and the 2TR signal in the "Low" state
2 signals to "High" (step S1
3) The 1TR1 signal which has been set to “High”, the 1T-IN1 signal which is in the “High” state and the 1T-OUT1 signal which is in the “Low” state are transmitted via the optical LAN 11
The signal is output to the signal transmission / reception unit 120 (step S14).

Next, the operation of the train detection device 100 when the train detection unit 111 fails will be described. At the time of failure of the No. 1 series car detection unit 111, the No. 2 series car detection unit 121
Is operating normally.

In this case, according to the train detection logic in the first-series car detection determination unit 130, the first-series car detection unit 1
No. 2 vehicle detection unit 1 that operates normally even if 11 fails
21 output 1T-IN2 signal and 1T-OUT
The 2 signals and the 1TR2 signal output from the No. 2 train detection / determination unit 140 are the same normal signals as the 1TR2 signal (“Low” signal when the train 10 is in a line, and “H” when the train is not present).
signal ”) is output from the 1TR1 signal output relay 134.

Next, the operation of the train detection device 100 when the power supply to the No. 1 system transmitting / receiving section 110 after repair is turned on will be described. When the power is turned on again, the second system transceiver unit 1
It is assumed that the train No. 20 and its No. 2 train detection unit 140 and other No. 2 system devices are all operating normally, and in particular that the train 10 is not present in the loop coils 1T and 2T.

In this case, the 1T-IN1 signal input relay 1
The 1T-IN1 signal input to 31a is "High",
1 input to the 1T-OUT1 signal input relay 132a
The T-OUT1 signal is "Low".

Further, the 1TR1 signal output relay 1 is set by the train detection logic in the No. 1 train detection determination section 130.
Since the normal signal "High" is output from 34, the 1TR1 signal input to the 1TR1 signal input relay 133b immediately before the current time is "High".

Therefore, according to the train detection logic,
The 1TR1 signal output from the 1TR1 signal output relay 134 at the present time is held at “High”, and a normal signal indicating that the train is not present in the loop coil 1T is output.

As described above, the train detection device 100
Is to perform train detection determination of the train 10 in the new transportation system by software according to the train detection program A without using a relay logic that uses a large number of relays.

The system 1 transmitter / receiver 110 and the system 2 transmitter / receiver 120 are the interlocking device 150 and the other device 160.
1T-IN1 signal, 1T-OUT1 signal, and 1TR1 signal that are inserted together with the optical LANs 11 and 12 from the 1st system, and 1T-IN2 signal, 1T-OUT2 signal that are output from the 2nd system, and The 1TR2 signal can be shared by both the No. 1 system and the No. 2 system.

Further, the optical LANs 11 and 12 share various information output from the No. 1 system and No. 2 system. Therefore, the train detection logic by the train detection program A is transmitted from the No. 1 system transmitting / receiving unit 110. Output signal from the second system transmitter / receiver 120, and 1TR1 signal and 1T
An OR process is performed on the R2 signal, and the train detection determination is performed based on the result of the OR process.

Therefore, since the train detection determination process can be performed by software without using a plurality of hardware relays, the facility cost can be reduced and
When changing the train detection logic, it is only necessary to rewrite the program, and the train detection device 100 having high versatility can be realized.

Further, in the train detection logic by the train detection program A, 1T-IN which is the above-mentioned No. 1 system information.
The 1 signal, 1T-OUT1 signal and the 1T-IN2 signal, 1T-OUT2 signal which are the above-mentioned 2nd system information are shared and O
1TR1 and 1TR2 signals output from the 1TR1 signal output relay 134 and 1TR2 signal output relay 144, which are R-processed and further equipped with self-holding contacts, are ORed.
By processing, not only the same effect as the train detection device based on the conventional relay logic can be realized, but also the normal train detection judgment is made even if only one of the 1 system and the 2 system is operable. Is possible. For example, when the train detector 111 fails, the train 1
Even if 0 is not present, the 1TR1 signal output from 1TR1 does not become "Low". Therefore, the determination of the rear loop coil 0T based on the 1TR1 signal output from 1TR1 is made. Can be maintained in normal condition.

Further, even if only one of the 1-system and the 2-system is operable, the normal train detection determination is continuously performed. Malfunction of the train detection determination when the power is turned on, for example, when the train detection unit 111 is turned on, the train is not in the loop coil 1T
The R1 signal is held in the “Low” state, and it is possible to avoid a malfunction that indicates the presence of a train and a situation in which the malfunction of the train detection unit 121 immediately after the power is turned on causes the entire system to go down.

An optical LA used for sharing data between the 1st system transmitter / receiver 110 and the 2nd system transmitter / receiver 120.
N11 and N12 are serial communication lights for exchanging data between the 1st system transmitter / receiver 110 and 2nd system transmitter / receiver 120, and the interlocking device 150 and the other device 160, which have been conventionally used. It is possible to use a LAN. Therefore, data can be shared between the 1st and 2nd systems without adding new hardware.
It is economical.

[0165]

According to the invention described in claims 1 to 4, it is possible to make a normal determination even when either one of the first and second detecting means fails. Therefore, the presence / absence of the train on the cable on the cable is normal in the faulty first or second detecting means, and it is possible to avoid the influence on the display determination in the rear cable based on the determination result. . Further, the first or second
Of the detection means, for example, when the power of the first detection means is turned on again, before and after the power is turned on, the other second
Since the presence / absence of the train is normally determined by the detection means, the presence / absence of the train is normally determined even if the second detection means fails after the power is turned on. Further, the logic for determining the presence / absence of a train in the first and second determining means can be realized by a program without using a plurality of relays used in the conventional train detection device, so that the facility cost can be reduced. In addition to reducing the number of times, it is sufficient to simply rewrite the program when changing the above logic, and a highly versatile train detection device can be realized.

[Brief description of drawings]

FIG. 1 is a diagram showing a schematic configuration of a train detection device 100 to which the present invention is applied.

FIG. 2 is a flowchart illustrating a train detection determination process in the train detection device 100 to which the present invention is applied.

FIG. 3 Train detection device 2 in a conventional new transportation system
It is a figure which shows schematic structure of 00.

FIG. 4 is a train detection device 30 that realizes train detection judgment and indication judgment in a new transportation system by program logic.
It is a figure which shows schematic structure of 0.

[Explanation of symbols]

10 trains 10a, 10b transmitter 100 train detector 11, 12 Optical LAN 110 system 1 transceiver 110a 1T-IN1 signal output relay 110b 1T-OUT1 signal output relay 111 Train detector 112 ATC transmitter 120 system 2 transceiver 120a 1T-IN2 signal output relay 120b 1T-OUT2 signal output relay 121 Train detector 122 ATC transmitter 130 No. 1 series car detection judgment unit 131a 1T-IN1 signal input relay 131b 1T-IN2 signal input relay 132a 1T-OUT1 signal input relay 132b 1T-OUT2 signal input relay 133a 1TR2 signal input relay 133b 1TR1 signal input relay 133c 2TR1 signal input relay 133d 2T-OUT1 signal input relay 134 1TR1 signal output relay 1A to 3A parallel circuit 4A series circuit 5A circuit 140 No. 2 series car detection judgment unit 141a 1T-IN2 signal input relay 141b 1T-IN1 signal input relay 142a 1T-OUT2 signal input relay 142b 1T-OUT1 signal input relay 143a 1TR1 signal input relay 143b 1TR2 signal input relay 143c 2TR2 signal input relay 143d 2T-OUT2 signal input relay 144 1TR2 signal output relay 1B to 3B parallel circuit 4B series circuit 5B circuit 150 interlocking device 160 Other equipment

Claims (4)

[Claims] 1. For each closed section, the closed section is arranged in the front part of a train running on a track on which a cable is laid from one end to the other end, and the front part of the train is located on the existing cable. First transmission means for transmitting a signal indicating the presence of the train at the front of the train, and second transmission means arranged at the rear of the train for transmitting a signal indicating the presence of the train at the rear of the train on a cable on which the rear of the train is present. Means for detecting the presence or absence of a signal transmitted from the first and second transmission means via the cables, and the first detection means for each cable. A second detection means for detecting the presence or absence of a signal transmitted from the first and second transmission means via the cable, separately from the means, and based on the detection results by the first and second detection means. The presence of a train on the cable A train detection device that determines whether a line or not exists and detects the presence or absence of a train on the cable based on the determination result. The train detection device is installed on the track, and the detection result by the first detection unit and the second detection unit First determination means for determining the presence / absence line of the train on each of the cables based on the logical sum with the detection result; and the first determination means, which is installed on the track and is separate from the first determination means. A second determination means for determining the presence / absence line of the train on each of the cables based on a logical sum of the detection result and the detection result by the second detection means, and the first and second determination means, Based on the logical sum of the determination results of the presence / absence of a train on each of the cables immediately before the current time and the logical results of the detection results by the first and second detecting means at the current time, the respective cables at the current time A train detection device characterized by determining the presence / absence of a train on a train. 2. The first determination means is a logical sum of the detection results of the first and second detection means at the present time and the presence of the train on the cable immediately before the current time by the first and second determination means. Based on the logical sum of the determination result of the non-existence line and the determination result of the in-line / non-existence line of the train on the cable laid in front of the cable by the first determination means at the present time, the first or second
When the signal transmitted from the transmission means is detected by the first or second detection means at the current time, it is determined that the train is currently on the cable, and the signal transmitted from the first and second transmission means is determined. Was not detected at that time, and if the train was not on the cable immediately before the current time, or if the train was on the cable immediately before the current time and was laid in front of the cable. When the train is currently on the cable, it is determined that the train is not currently on the cable, and the second determination means is a logical sum of the current detection results by the first and second detection means, Just before the present time, the logical sum of the determination results of the presence / absence of a train on the cable by the first and second determination means and the current determination result of the cable by the second determination means Write on the basis of the determination result of the rail and non-rail laying Trains on the cable in the first or second
When the signal transmitted from the transmission means is detected by the first or second detection means at the current time, it is determined that the train is currently on the cable, and the signal transmitted from the first and second transmission means is determined. Was not detected at this time, and if the train was not on the cable immediately before the current time, or if the train was on the cable immediately before the current time and was laid in front of the cable. The train detection device according to claim 1, wherein, when the train is currently on the cable, it is determined that the train is not currently on the cable. 3. For each closed section, from the first transmission means arranged at the front part of the train running on the track on which the cable is laid from one end to the other end of the closed section, to the train front part. A step of transmitting a signal indicating the presence of the train at the front of the train on the cable where the train is present; and a second transmission means arranged at the rear of the train, from the presence of the rear of the train on the cable where the rear of the train is present. And a first detection means installed for each of the cables,
And a step of detecting the presence or absence of a signal transmitted from the second transmission means through the cable, and a second detection means installed for each of the cables,
A step of detecting the presence or absence of a signal transmitted from the first and second transmitting means via the cable, separately from the detecting means, and the cable based on the detection result of the first and second detecting means. In the train detection method of determining the presence / absence of an upper train, and detecting the presence / absence of a train on the cable based on the determination result, the first determination means installed on the track is the first detection means. Determining the presence / absence of a train on each of the cables based on a logical sum of the detection result by the second detection means and the detection result by the second detection means; and the second determination means installed on the track, 1 separate from the determination means, a step of determining the presence / absence line of the train on each of the cables based on the logical sum of the detection result by the first detection means and the detection result by the second detection means, The first And the step of the second judging means is a logical sum of the judgment result of judging whether the train on each cable is present or not and the logical sum of the detection results of the first and second detecting means at the present time. Based on the above, a train detection method is characterized by determining the presence / absence of a train on each of the cables at the present time. 4. The step of the first judging means comprises the logical sum of the detection results of the first and second detecting means at the current time and the train on the cable immediately before the current time by the first and second judging means. Based on the logical sum of the determination results of presence / absence of a line and the determination result of presence / absence of a train on a cable laid in front of the cable by the first determination means at the present time, the first or the first Two
When the signal transmitted from the transmission means is detected by the first or second detection means at the current time, it is determined that the train is currently on the cable, and the signal transmitted from the first and second transmission means is determined. Was not detected at that time, and if the train was not on the cable immediately before the current time, or if the train was on the cable immediately before the current time and was laid in front of the cable. When the train is currently on the cable, it is determined that the train is not currently on the cable, and the step of the second determining means is a logical sum of the detection results of the first and second detecting means at the current time. And a logical sum of the determination results of the presence / absence of a train on the cable by the first and second determination means immediately before the present time, and the current result by the second determination means at the present time. Based on the determination result of the rail and non-rail laying Trains on the cable in front of Buru, the first or the second
When the signal transmitted from the transmission means is detected by the first or second detection means at the current time, it is determined that the train is currently on the cable, and the signal transmitted from the first and second transmission means is determined. Was not detected at that time, and further, if the train was not on the cable immediately before the current time, or if the train was on the cable immediately before the current time and was laid in front of the cable. The train detection method according to claim 3, wherein when the train is currently on the cable, it is determined that the train is not currently on the cable.