JPH04201678A - Security control method and device coping with failure of railway crossing gate and alarm - Google Patents

Abstract

PURPOSE:To enable a railway crossing accident due to the failure of a gate and an alarm to be prevented by transmitting information regarding the failure to a conductor on a train, sending the train information regarding the state of the gate and alarm, when the train is near a crossing, and automatically actuating a brake. CONSTITUTION:A railway crossing alarm device DC is provided with a transmission means ST for transmitting gate closing alarm information SG to a train TR, in addition to an open and non-alarm judgment means BC for identifying whether a railway crossing is open or an alarm is operating. On the other hand, the train is equipped with a receiving means RV for receiving the closing alarm information SG from the transmission means ST, and a logic section LS for making judgment about brake control and operation, on the basis of the received information. The railway crossing alarm device LC sends closed and alarm information SG according to closing state via the transmission means ST, regardless of the detection of the train TR in a crossing alarm division AL. According to the aforesaid construction, the closed and alarm information SG is normally a signal to mean the failure of a gate and alarm. Also, the information becomes a signal to stand for closing and alarm completion, only when the ingress of the train TR into a crossing alarm division AL is detected to actuate the proper operation of the alarm device LC and to complete the closing of the railway crossing under the operation of the alarm.

Description

[Detailed Description of the Invention] "Industrial Application Field" This invention relates to accident prevention technology at level crossings when there is no interruption or warning.

[Prior Art] There are several types of level crossing warning devices, and equipment has been introduced depending on the situation of the level crossing. Among these, the one that is considered to have a high level of safety is a type 1 level crossing warning system equipped with a level crossing blocking device. In the first class level crossing warning system, when the 11th level crossing controller detects the approach of a train, it sounds an alarm for a certain period of time and then lowers the level crossing blocking rod, blocking traffic from then on until the train has passed. to prevent accidents.

Despite using such equipment.

Cars often enter the railroad crossing barrier during or after it has descended, causing serious accidents. Countermeasures to this problem include installing obstacle detection devices at level crossings, and if an obstacle is detected after the train has been cut off, the train can be brought to an emergency stop, and these methods are being introduced at many level crossings.

On the other hand, a problem that cannot be solved by the above-mentioned measures, and which is being seriously avoided today, is accidents caused by non-blocking or non-warning of railroad crossings. The safety control using the above-mentioned obstacle detection device is effective after the level crossing warning device detects the entrance of a train and blocks the level crossing, and is completely ineffective against non-blocking and non-blocking warnings.

Although all cars passing through a level crossing are required to stop once and confirm that no trains are approaching, there are actually accidents caused by no shutoffs and no warnings, and the impact of accidents should be considered. Some kind of security measures are desired. To date, measures have been taken to prevent poor train detection, which is one of the causes of no-cut warnings, such as improving the performance of the 11 crossing controller, and installing indicator lights to notify train crews of the level crossing blocking status. It was a plan.

[Problem N that the invention attempts to solve]

The environment for train detection using track circuits is becoming increasingly worse as trains become lighter and synthetic brake shoes are introduced. Therefore, there is a limit to the improvement of single train detection performance, and it will be important for future level crossing safety control to make efforts to completely eradicate the occurrence of non-blocking and non-warnings, as well as introducing safety control devices that take the occurrence of non-blocking and non-warnings as a preemptive step. and has become an essential element.

On the other hand, as mentioned above, the conventional approach to level crossing safety has mainly been based on the assumption that a level crossing will be disrupted after a warning has been issued. Although the introduction of zero indicator lights is expected to have a certain effect,
Considering delays in confirmation and forgetting to confirm, it cannot be said to be perfect.
A fundamental solution would be to automatically stop the incoming train in the unlikely event that a no-shutdown alarm occurs, but such a control method is still being invented. The present invention provides a method and an apparatus for solving these problems.

[Means for Solving the Problems 1] The present invention does not aim to prevent failure accidents by transmitting information on whether or not there is a non-blocking warning to a train crew member, but rather to prevent a failure accident by one crew member's action. By transmitting the status to the vehicle and automatically applying the brakes, it is possible to prevent accidents caused by non-shutoffs and non-warnings. For this reason, the m-cut warning device is provided with a non-shutoff/no-warning judgment means for identifying whether or not the shutoff pole is in an open state and whether or not there is an alarm, and a transmitting means for transmitting shutoff warning information to the train. Prepare. On the other hand, receiving means is provided on the vehicle to receive the shutoff warning information from the transmitting means, and brake control is performed in accordance with the received information.

[Function] As a result, even if two trains enter the level crossing control section and the level crossing is in an unblocked and unwarned state and a dangerous situation is expected, the brakes are automatically activated to stop the train. It becomes possible to rescue railway crossing accidents caused by non-blocking and non-warning.

[Example] An example of the present invention will be described with reference to the drawings. FIG. 1 is a diagram illustrating the configuration and principle of the safety control method for non-blocking and non-alarming of railroad crossings as set forth in claim 1 of the present invention. In Fig. 1, the level crossing warning device LC is equipped with a non-blocking/non-alarm determining means BC for identifying whether or not the door is open and whether there is a warning, and also transmits the blocking warning information SG to the train TR. A transmitting means ST is prepared. On the other hand, the above-mentioned level crossing warning system is provided with a receiving means RV for receiving cut-off warning information SG from the above-mentioned transmitting means ST and a logic section LS for determining and controlling brake control based on the received information. The LC transmits the cutoff warning information SG according to the cutoff situation by the transmitting means ST, regardless of whether a train TR is detected in the level crossing warning section AL.

Therefore, the cutoff alarm information SC always becomes a signal meaning no cutoff and no alarm, and when it is detected that one train TR has entered the level crossing warning section AL, the level crossing warning device LC operates normally, the cutoff is completed, and a warning is issued. A signal indicating the completion of the cutoff alarm is issued only when the

Therefore, even if a non-blocking, non-warning state occurs at the level crossing due to some reason, such as failure to detect the entry of train TR 1 even though 2 train TRs have entered the level crossing warning section, 7 train TRs will not be blocked. No alarm status can be received. As a result, if it is determined to be dangerous, a brake output is applied to the brake mechanism BR to stop it, thereby significantly reducing accidents caused by non-blocking and non-warning of railroad crossings.

Next, the safety control device for non-blocking and non-warning support for railroad crossings as set forth in claim 2, which implements the method set forth in claim 1 using an ATS device, will be explained using FIG. 2. . 2) It is a diagram illustrating a safety control device for non-blocking and non-alarming of railroad crossings as set forth in claim 2. Second
In the figure, the level crossing warning device LC includes non-blocking/non-alarm determining means BC for identifying whether or not the door is open and whether or not there is an alarm, and a transmitting means ST ( (not shown in this figure).

ATS ground equipment AG is used as the transmission means.

On the other hand, an ATS on-vehicle device AB is installed on the vehicle to perform the functions of a receiving means RV and a logic section LS (neither of which are shown in this figure). It should be noted that various systems have been put into practical use as ATS today.

Above ATS ground installation (iiAG and ATS vehicle installation (II)
AB is not limited to any one.

The above ATS ground equipment AC has constant stop information set to 1.
%, the progress information is changed only when the interruption/non-warning determining means BC detects the completion of the crossing and the implementation of the warning.

As a result, if a non-blocking, non-warning state at the level crossing occurs due to some reason, such as failure to detect the entry of the second train TR even though the second train TR has entered the level crossing warning section,
The ATS on-vehicle device AB on the vehicle can receive stoppage information via the ATS ground equipment AG. At this time, if a brake output is applied to the brake mechanism BH to perform stop control, it is possible to significantly reduce accidents caused by non-blocking and non-warning at level crossings. , it is highly economical because it can effectively utilize the ATS function already installed.

Next, another invention recited in claim 3, which efficiently realizes the method recited in claim 1 by providing a position detection function on the vehicle, is an unblocked railroad crossing system. The alarm-capable security side m device will be explained using FIG. 3. FIG. 3 is a diagram illustrating a safety control device for non-blocking and non-alarming of railroad crossings as set forth in claim 3. Third
In the figure, the level crossing warning device LC on the ground has non-blocking and non-alarm determining means B for identifying whether or not the door is open and whether or not there is an alarm.
C, and a transmitting means ST for transmitting interruption alarm information SG indicating completion of the interruption alarm when the crossing is completed and an alarm is in progress, and indicating no interruption or warning when there is no interruption or no alarm.

- On the other hand, the vehicle is provided with a receiving means RV for receiving the above-mentioned cutoff alarm information SG and a logic section LS, and the logic section LS
are a running position summer detection means PD, equipment status data SD of the line section on which the train is running, and a processing unit L that performs processing related to the present invention.
Consists of G. The transmitting means ST may be one that uses radio, one that superimposes the signal current on the track circuit, one that uses a loop coil, or one that uses induction radio. There is no essential difference in the effect no matter which method is used, but in FIG.
A method of superimposing G on the track circuit TC and detecting a signal by trI11 guidance on two cars will be taken as an example and explained.

In the on-vehicle processing unit LG, the traveling position detection means P
Traveling position P ascertained by D and the above equipment status data S
It is determined whether to enter the level crossing warning section AL from D. As a result, if the train is entering the level crossing warning section AL, the contents of the cutoff warning information SG received by the receiving means RV from the level crossing warning device LC are checked. The cutoff alarm information SG
If it is a signal indicating that a block completion warning is in progress, passage on the level crossing is allowed. On the other hand, when the above-mentioned cutoff alarm information SG is a signal of no cutoff and no alarm, the above-mentioned signal equipment data S
Judging from the distance to the level crossing calculated from D and the above running position P, the current running speed ■, and the deceleration B of the own train recorded in the above equipment data SD, it is possible to stop at a certain length before the level crossing, but it is not possible. make that judgment. As a result, if the possible stopping point exceeds a certain length in front of the level crossing, brake mechanism B
By applying a brake output to R, the train itself can quickly detect and stop when there is no interruption and no warning at a level crossing, making it possible to avoid the occurrence of dangerous accidents. moreover.

Since the information is continuously exchanged, if the cut-off alarm information SG indicates that a cut-off completion alarm is in progress during deceleration, the brake can be released and the vehicle can pass through the level crossing. On the contrary, l
If the circuit breaker is intentionally opened after receiving the "A-cut completion alarm" message, the "blocking alarm information @SG" will transmit the "No-cutting-off alarm" so that immediate action can be taken.

In addition, in the case of the present invention, the system is such that the 9 train TR can run on the level crossing only after receiving the interruption completion warning from the ground, so fail-safe performance can be guaranteed. Furthermore, m
In addition to the train itself deciding whether to enter the level crossing warning section AL, the necessity of applying the brakes is logically determined on board based on the speed and distance to the level crossing, resulting in efficient control. becomes possible.

[Effects of the Invention] According to the present invention, it becomes possible to automatically control the train and prevent a collision even when one train is approaching, when the level crossing warning device does not give an alarm. You can expect great effects.

Furthermore, in the invention of claim 2, since the functions of the already installed ATS can be used, additional equipment on the vehicle is not required, and the system can be realized economically.

Furthermore, in the invention recited in claim 3, since the system allows running on the relevant level crossing only when the information in the cut-off completion warning is received, failure of the transmitting means on the ground or the receiving means on the vehicle occurs. A fail-safe system can be constructed against this.

This makes it possible to perform efficient control because the vehicle judges whether to enter a level crossing warning zone or whether to apply the brakes.

[Brief explanation of the drawing]

FIG. 1 is a diagram illustrating the configuration and principle of a safety WAm method for non-blocking and non-alarming of railway crossings, which is an embodiment of claim 1 of the present invention, and FIG. FIG. 3 is a diagram illustrating a safety control device for non-blocking and non-alarming of railroad crossings in which Section 2 is an embodiment, and FIG.
FIG. 1 is a diagram illustrating a safety control device for non-blocking and non-alarming at railroad crossings, which is an embodiment of the present invention. LC: Level crossing warning device. BC: Non-blocking, non-alarm judgment means. SG: Block warning information, TR: Train. ST...transmission means, BR...brake mechanism. RV: receiving means, LS: logic section. AL... Level crossing warning section, AG... ATS ground equipment. AB...ATS on-board device. PD... Traveling position detection means. SD...Equipment status data, LG...Processing department. TC...Track circuit, P...Travel position, ■...Travel speed. B...Deceleration.

Claims (3)

[Claims] (1) In a level crossing warning device that detects that a train has entered a level crossing warning control section and controls the level crossing, the level crossing warning device includes a non-blocking/non-warning determination means for identifying whether there is a blockage and whether or not there is a warning; On the other hand, a transmission means for transmitting the cutoff alarm information is provided, and a receiving means for receiving the cutoff alarm information from the transmitting means and a logic section for controlling the brakes based on the received information are arranged on the vehicle, so that there is no cutoff. Or, if the train approaches a level crossing that has no warning, the train automatically stops, thereby preventing accidents at level crossings that are unblocked or have no warning. Alarm response security control method. (2) In the security control method for non-blocking and non-alarming of railroad crossings as set forth in claim 1, an ATS ground device is used as a transmitting means for transmitting the blocking warning information, while on-board receiving means and logic The section utilizes the ATS onboard device, and the ATS ground device transmits progress information only when the cutoff is complete and a warning is in effect, and when there is no cutoff or no warning, a constant stop signal is used to prevent approaching vehicles. A safety control device for non-blocking and non-alarming at level crossings, which is characterized by stopping incoming trains and preventing failure accidents at level crossings where non-blocking and non-warning occurs. (3) In the safety control method for non-blocking and non-alarming of railroad crossings as set forth in claim 1, the logic section on the vehicle is constituted by a traveling position detecting means, equipment status data of the line section on which the train is traveling, and a processing section. In the processing section, in addition to determining whether to enter a railroad crossing warning section based on the traveling position detected by the traveling position detecting means and the equipment status data, the processing section also issues a cutoff warning by the receiving means even though the crossing is approaching. A feature of the system is that when no information is received, or when the received cutoff warning information indicates no cutoff or no warning and is judged to be dangerous, brake control is performed to prevent accidents at railroad crossings where no cutoff or no warning occurs. A security control device that supports non-blocking and non-warning at railroad crossings.