JPH02237403A - Train control method - Google Patents

Abstract

PURPOSE:To enable increasing the number of controlled conditions through a simple system by providing on a train a position detecting function and the positional control data of a ground device and by determining speed limiting conditions from specific control data and from the class and internal state of the detected ground device, when a train passes over the ground device. CONSTITUTION:A train TR knows a position during its travel by a position detector PD and detects the passage over a ground device and the internal state of said ground device by a ground device detector SD. A control logic processor CL reads control data items of said passing ground device from the train position, selects a limiting speed from the internal state of the ground device and forms an allowable speed pattern from the distance to the control point and the limiting speed. Thus, it is possible to increase the number of controlled conditions through a simple system.

Description

[Detailed description of the invention] Industrial application field> The present invention relates to a train control method for preventing train accidents caused by misreading signals, overrunning stop positions, etc. during railway train operation. <Prior art> In the method of controlling train speed using beacons, there are two ways to know the control conditions onboard the train: a combination method in which a combination of the type of beacon and internal state corresponds to the control conditions, and a method of controlling from the beacon. A transbonder method that transmits the conditions themselves as data has been put into practical use.

Problems to be Solved by the Invention The above combination system has a simple device and is used in many railways, but in many cases the control conditions are limited to only a few types.
Complex train operating lines have the disadvantage of being inefficient. On the other hand, the transbonder method, which transmits control conditions from the ground element to the train, has almost no limit to the number of control conditions, but requires a large amount of equipment, and is only used by some railways.

In order to dramatically increase the number of control conditions in the combination method described above, the present invention provides a position detection function on the vehicle and control data corresponding to the position of the ground element. When a child is detected, the control data is searched using the train position as a key to determine control conditions. As a result, control conditions can be set for each individual ground element, making it possible to set conditions as complex as when all ground elements are of different types in the above combination method, and control conditions are transmitted from each ground element to the onboard vehicle. This makes it possible to achieve control functions comparable to those of the transbonder method.

Function> When a train detects a beacon, control data is specified from the train position at that time, and control conditions are determined from the specified control data and the type and internal state of the detected beacon.

Embodiment> Hereinafter, an embodiment of the train control method according to the present invention will be described in detail with reference to the drawings.

Fig. 1 is an explanatory diagram showing the configuration of a basic device that enables the method of the present invention, Fig. 2 is an explanatory diagram showing an example of a control data structure, and Fig. 3 is an explanatory diagram showing an example of a control data structure. FIG. 4 is an explanatory diagram showing an example of a method of controlling a train in a two-display signal section using one type of beacon with two internal states according to the method of the present invention. In each figure, the same symbols as in other figures indicate the same components.

First, the configuration of devices that enable the method of the present invention will be explained based on FIG.

In FIG. 1, TR represents a train and CL represents an on-board control logic processor. The control logic processor CL is connected to a control data storage device CD, a position detection device PD, a ground element detection device SD and a speed control device SC. P.T.
represents the allowable speed pattern created within CL. The control data storage device CD stores the position of the traffic light corresponding to each ground element, and the relationship between the speed limit at the signal point and the internal state of the ground element in a format that can be indexed from the ground element position. S is a traffic signal, and PI, Pi, and Pn represent ground elements controlled by the traffic signal S.

The train knows its position while running using the position detection device PD.
The ground element detection device SD detects passing over the ground element and the internal state of the ground element. The control logic processing unit CI takes in this information and searches the control data CD using the train position as a key every time a beacon is detected.
An allowable speed pattern is created from that information and the internal state of the ground element.

Next, using FIG. 2, an example of the configuration of control data in the case of using a ground element with type 1 m2 internal state in the present invention will be shown.

In Figure 2, O, i, K, L, Ul,
U2, VCI, and VC2 represent data items for one beacon, and values are stored in all data items for all the beacons that the train passes. 0 is the position of the ground coil, and K is a control type code that distinguishes whether the control point whose speed must be limited to VC is a traffic light or a switch. L is the distance from the beacon to the above control point, U1 and U2 mean the internal status code of the beacon, and Cl and VC2 are speed limits corresponding to the respective internal status codes. The control logic processing unit CL in FIG. 1 reads the control data items of the passing beacon from the train position, selects the speed limit from the internal state of the beacon,
Distance to control point 1! ! Create an allowable speed pattern from L and the speed limit.

Next, an example of a position detection device necessary for carrying out the present invention will be shown using FIG.

In FIG. 3, TG represents a wheel rotation speed detector, and PDL represents a position calculation processing device. The PDL is connected to the TG and has a position calculation function that calculates the travel distance from the wheel rotation pulses output by the TG and integrates it to the initial position. Also, P
DL is also connected to the control logic processing unit CL.
It has the function of receiving the ground element detection timing via the ground element and detecting the distance between the ground elements from the ground element detection timing using the above-mentioned position calculation function. The initial position is set by having position setting data in the PDL that associates the initial position with a combination of distances between multiple ground elements, and searching for the position setting data using the detected combination of distances between the ground elements. . P.D.
After the initial position is determined, L starts outputting position information to CL.

If the distance traveled by the train is long and the error in the position calculation function cannot be ignored, a method is adopted in which the initial position setting is repeated every fixed distance.

Next, using the fourth rglJ, one type and two
An example of a method for controlling a train in a two-display signal section using ground elements in internal state will be described.

In Figure 4, D means a switch, P di, P
d2, P d3 represent the ground coil controlled by the switch D, and its internal state is g when the switch is in the orientation direction.
When in the opposite direction, it is controlled to r. P bi, P ci
represents the beacon corresponding to the two signals Sb and Sc, respectively, and its internal state is controlled to g when the signal is in the proceeding G condition and to r when the signal is in the stop R condition. Case 1 is a state in which the switch D is opened in the localization direction, and when the signal SC is in G mode, the train TR2 is approaching the signal Sc, and the train TRI is approaching the signal sb. Ground element P ci,
All P di are in the g state, and the allowable speed pattern PT2 of the train TR2 is a straight line that is not subject to speed restrictions. The signal sb is showing R, and the ground wire P controlled by it is
All hi are in the r state. The allowable speed pattern for the train TRI was created when it passed the berm Pbl in the r state, and is a pattern in which the train TRI stops before the signal sb. Case 2 shows a state in which train TR2 has traveled to switch D. The signal Sc becomes R, and the beacon Pci that is $Jm attached to it is in the r state, and the beacon Pdi controlled by the switch remains in the g state. The signal sb changes to the G state, and the ground signal Pbi is in the G state.

When the train TRI passes the ground element Pb3 in the G state, it detects that the signal sb is in the G state, and switches the allowable speed pattern PTI to a straight line with no speed limit.

Thereafter, the vehicle continues to accelerate as indicated by the broken line and passes traffic light sb. In case 3, when the signal Sc shows R and the switch D maintains its orientation, the train TR. 1 is the ground element P in the inner state r
cl, and the permissible speed pattern PTI has been rewritten to a pattern that causes the vehicle to stop before the traffic light Sc. Case 4 is a state in which the train TRI passes the beacon Pdl after the switch D is reversed and the beacon Pdl becomes r, and the beacon Pc2 is detected after the signal Sc shows G. Vp represents the speed limit for passing the switch D in the reversed state. When the train TRI detects the r state of the beacon Pdl, it creates and stores a permissible speed pattern that decelerates to the speed limit Vp before the switch D, but since the pattern speed of stopping before the signal Sc is lower, The allowable speed between Pdl and PcZ remains unchanged. When the g state of the ground transducer Pc2 is detected and the pattern of stopping before the traffic light Sc is canceled, the effect of the invention that controls the speed of the switch D that is stored> When the above-mentioned control is performed by the conventional method,
A method has been adopted in which the distances from the ground coils to the corresponding traffic lights and switches are categorized, and types of ground coils are provided for each distance Sa. When arranging three ground coils in front of a traffic signal or a switch as shown in Fig. 4, three types of ground coils are required. Furthermore, since the control types are different for traffic lights and switches,
It is necessary to use a total of six types of ground coils in order to distinguish between them, but there is an advantage that not only only one type of upper coil is sufficient, but also the position of the ground coil can be set quite freely. At present, a simple automatic train stopping device called the ATS-S type using a beacon of type 1 and 2 internal states is used on many railways. If the present invention is applied to the Nikura line, it will be possible to achieve the same exact and efficient control system using beacons of many types or information by simply modifying the wayside equipment at a low cost, and train operation will be possible. can greatly contribute to improving safety and efficiency.

[Brief explanation of drawings]

Fig. 1 is an explanatory diagram showing the configuration of a basic device that enables the method of the present invention, Fig. 2 is an explanatory diagram showing an example of a control data structure, and Fig. 3 is an explanatory diagram showing an example of a control data structure. FIG. 4 is an explanatory diagram showing an example of a method of controlling a train in a two-display signal section using one type of beacon with two internal states according to the method of the present invention. T R, T Rl, T R 2-=train,
CL- On-vehicle control logic processing device, CD- Control data storage device, PD・1 Position detection device,
SD- Ground element detection device, SC- Speed control device, PT, PTI, PT2・1 Allowable speed pattern, S, Sa, Sb, Sc ---1 Traffic light, 0, i, K, L,
Ul, U2, VCI, VC2---
Control data items, TG---One wheel rotation speed detector, PDL---Position calculation processing device, SL, SLa, SLb, SLc---One traffic light control device, G, R・- Signal display,
Pl, Pi, Pn, Pbl, Pb2,
Pb3, Pal, Pc2, Pc3- Ground control controlled by traffic lights, D.1 Switch, P di, P d2, P
d3.1 Ground coil controlled by a switch, g
．． r・1 Ground element internal state, Vp, - limit speed of switch.

Claims (1)

[Claims] A train control method in which a beacon is placed that changes its internal state in response to the speed limit state ahead, and speed control conditions are determined onboard the train based on the type of beacon detected by the train when passing the beacon and its internal state. , the train is equipped with a position detection function and control data that stores control conditions for each position of the beacon, and when the train passes over the above-mentioned beacon, the control data is identified from the train position, and the identified control data is and a train control method characterized by determining speed limit conditions from the type and internal state of the detected beacon.