RU2230679C2 - Method of provision of preliminary light signaling, method of determination of place of mounting of light source of said signaling - Google Patents

Abstract

FIELD: railway transport; provision of safety.

SUBSTANCE: when approaching danger light signal or slow-speed light signal, preliminary light signaling is periodically switched on, vigilance button or pedal is pressed on and preliminarily light signaling is switched off. Time between ON and OFF makings of preliminary signaling is changed depending on speed of driving. Minimum time for maximum permissible speed at said light of signal is chosen, and at decreasing of speed, time is increased. Maximum time is set when pre-chosen definite speed is obtained. Preliminary light signaling light source is set in direct range of vision of driver when he is on its working place viewing the windshield. Light flux from light source is directed to driver.

EFFECT: improved vigilance checking, possibility of confirmation of driver's vigilance.

3 cl

Description

FIELD OF THE INVENTION

The method for implementing preliminary light signaling and the method for determining the installation location of the light source of preliminary light signaling relate to the section on ensuring the safety of train traffic in railway transport.

State of the art

A continuous automatic locomotive signaling system (ALSN) is known, in which, when approaching a traffic light or traffic light that requires a speed reduction, periodically, regardless of speed, a preliminary light signaling of the MSS is activated. The check period (the time between two switching on of the MSS or between changing the signals of a locomotive traffic light and turning on the MSS) does not depend on the speed, this creates conditions when, at the maximum permissible speed for a given traffic light, the next test is too late - the distance to the inhibit signal remains less than the braking the way.

The location of the pre-warning light sources has not been determined. They may not be in the direct field of vision of the driver when he is looking through the windshield, but may be on the left, on the right, from above. The driver, with this arrangement of PSS light sources, is able to confirm his vigilance by PSS signals, seeing them, not looking forward, not observing the train situation through the windshield.

Bibliographic data of the information source: “Locomotive safety devices and monitoring their operation”, A.A. Posmityukha, “Transport” publishing house, 1992, p. 8, 21. “Railway automation and telemechanics systems”, “Transport” publishing house, 1992, p. 137.

SUMMARY OF THE INVENTION

The essence of the invention “Method for the implementation of preliminary light signaling” consists in the fact that when approaching a prohibitory traffic light or traffic light requiring a decrease in speed, periodic checks of the driver’s vigilance are made by switching on the preliminary light signaling (PSS), to which the driver must respond by pressing the vigilance knob or the vigilance pedal , with a change in the period of switching on the MSS (time between switching on) smoothly or discretely from the minimum selected for the maximum speed, to the maximum set when reaching a predetermined minimum speed. The reference point for the minimum MSS period can be the selected path traveled by the train at the maximum permissible speed for a given signal of the traffic light, and, therefore, the readings of the locomotive traffic light. When using this method, changing the MSS turn-on period depending on the speed, the probability of the train passing a long section of the train with the loss of vigilance by the driver decreases, when, after the next vigilance check, the stopping distance for the train to stop at the prohibitory traffic light, or reduce the speed before the traffic light to proceed which is required at a reduced speed.

The essence of the method for determining the installation location of the PSS light source is that it is installed in the direct field of view of the driver if he is looking into the windshield, with the direction of the narrow light flux towards the driver so that it is not distinguishable if the driver does not look in windshield. This eliminates the fictitious confirmation of vigilance by the driver on the basis of MSS signals when the driver is not looking forward.

Examples

1. At the entrance to the prohibitory traffic light with a maximum permissible speed of 60 km / h, after 250 meters of the distance traveled after changing the indications of the locomotive traffic light, turn on the MSS, to which the driver must respond, confirming his vigilance. At this speed, the PSS enable period is set to 15 s. At a speed of 50 km / h, with the same accepted distance, the period will be 18 s. Accordingly, at 40 km / h - 22.5 s, at 30 km / h - 30 s, at 22.5 km / h - 40 s. If it is assumed that the maximum permissible period for switching on the MSS is 40 s, then with a further decrease in speed up to a complete stop, the MSS is turned on after 40 s. If it is accepted that the maximum permissible period is 30 s, then, starting from a speed of 30 km / h, up to a complete stop, it will be 30 s.

2. On electric locomotives of the ES series, the light source of the MSS is installed above the control panel or in its upper part in a vertical plane drawn from the driver, who is at his workplace, in the direction of movement, with the direction of the light flux from the light source of the MSS to the driver.

Information confirming the possibility of carrying out the invention

The activation period of the preliminary light signaling (PSS) is set as a function of speed with predefined limits of the minimum and maximum period of checks.

The light source of the MSS is installed in the direct field of view of the driver if he is looking through the windshield. For example, on electric locomotives of the ES series, the PSS light source is installed above the control panel or in its upper part in a vertical plane, drawn from the driver at his workplace, in the direction of movement, with the light flux from the PSS light source to the driver.

Claims (2)

1. The method of implementation of the preliminary light signaling (PSS) in a continuous automatic locomotive signal system, which consists in the fact that when approaching a traffic light or traffic light requiring a speed reduction, the PSS is periodically turned on, the vigilance knob or the vigilance pedal is pressed, and the PSS is turned off, characterized in that change the time between switching on the MSS depending on the speed of movement, choose the minimum time for the maximum permissible speed at a given traffic light, increase it when speed decreases, the maximum time is set when the selected speed is reached in advance. 2. The method of determining the installation location of the light source when the preliminary light signaling (PSS) is carried out, characterized in that the PSS light source is installed in the direct field of view of the driver, if he is at the workplace and looks through the windshield, and the light stream of the light source is directed towards the driver.