RU2477420C1 - Device for control of passenger railway platforms illumination - Google Patents

Abstract

FIELD: electrical engineering.

SUBSTANCE: illumination is switched on at full capacity in evening and night time during certain time intervals for 6-10 minutes. The switching-on time interval beginning is the moment of the train entering the section of approaching to the passenger platform, such time interval over 3-5 minutes after the whole of the rolling stock has passed by the platform. By the passengers' request, maximum illumination duration may be additionally increased by 5-7 minutes. During other time intervals the illumination system operates at capacity reduced (2-2.5 times), such illumination level still guaranteeing safety of passengers staying on the platform. A positive effect is considerable electric energy saving alongside with ensuring safe conditions for passengers to stay on platforms.

EFFECT: increased cost-efficiency of the illumination system, compliance with luminosity norms guaranteeing safe citizens' staying at stop point.

1 dwg

Description

The invention relates to control devices for outdoor artificial lighting, in particular to lighting control on railway platforms.

Known control devices for external artificial lighting on railway platforms (1), in which the lighting control devices are designed to automatically turn on and off the external lighting, depending on the level of natural light. The timer installed in AON-2000 allows you to automatically turn off and turn on the lighting on the platforms of railway stations and the territories adjacent to them in the dark during the absence of passenger trains. Turning on and off the machines can be set to any illumination from the range (1.5-15) lux with an accuracy of ± 10%.

The known device has two main disadvantages. Firstly, the lack of communication between the actual train situation and the program introduced in advance. This can lead to dangerous situations in which the lighting on the platforms will be turned off. Secondly, the level of illumination itself is a fixed value.

The closest in technical essence is the automated system (2) for controlling outdoor lighting SAF-500. The system is focused on the modernization of existing street lighting networks and the management of existing supply points; therefore, supply points are not part of the system. The system includes a control room and control units.

The control room of the system is a computer with software for managing the system and a GSM modem connected to the computer. The control unit is made in the form of a structurally complete unit in a metal case, in which are located: the controller, GSM modem, backup power and connecting wires. The control unit performs control and measurement of the parameters of the supply point and data transfer to the control room. The control unit provides the following functions: accuracy of the internal clock (no more) +/- 5 s per day, turning on evening lighting (in the evening) and turning off evening lighting (at night), turning on night lighting (at night) and turning off night lighting (in the morning) , adjustment of the built-in clock, setting the time of the built-in clock, powered by a backup current source in the absence of voltage in the network, programming the settings memory. For communication of the central control center with control units, cellular communication via SMS messages is used.

It is taken as a prototype. This system has some drawbacks, namely it works according to a strict program that does not take into account the actual need for illumination of a stopping point.

The technical result is to increase the efficiency of the lighting system while observing lighting standards that guarantee the safe stay of citizens at a stopping point.

The essence of the invention lies in the fact that the composition of the known device (2), containing a control room, in which a computer with software for controlling the lighting system is connected to the transceiver and is part of the workstation of the energy dispatcher, and a control unit is installed in the area of the lighting installations containing a transceiver connected to a controller equipped with a backup power supply, the controller is connected to the power control unit of the lighting installations.

The relay contacts of the train notification circuit are additionally connected to the controller through the signal generation circuit, in series with which the one-shot is turned on and the contacts of the button placed on the lighting support, also through the signal-forming circuit, in which the second one-shot is connected, the outputs of the first signal-forming circuit and the indicated single vibrators through a logic element OR are connected to the control inputs of the controller.

Such a connection ensures that the lighting is turned on at full power in the evening and at night for a certain time before the train actually passes the platform, for the entire time the passengers board and disembark and for the set time (necessary to leave the platform) after the train leaves. If necessary, passengers can forcibly turn on the lighting at full power for a specified time by pressing the button that either the lighting masts are equipped with directly or are placed in other places along the passenger route from the platform.

The invention is illustrated in the drawing, which shows a block diagram of the device.

The lighting control device on railway platforms contains a control room in which a computer 1 with software for controlling the lighting system is connected to the transceiver 2. Computer 1 is part of an automated workstation of the energy dispatcher 3. A control unit containing the transceiver 4 is located at the location of the lighting installations connected to the controller 5, equipped with a backup power supply unit 6, the controller outputs are connected to the lighting control unit 7 settings 8. The output of the train approach notification circuit 9 through the signal generation unit 10 is connected to one input of the OR logic element 11, a one-shot device 12 is connected to the other input of the named element. The contacts of the additional illumination button 13 located on the lighting support or in other places along the route following passengers from the platform are connected to the input of the second one-shot 14, the output of which, in turn, is connected to the third input of the logic element OR 11, the output of this element is connected to one and from the control inputs of the controller 5.

The operation of the device proceeds as follows. Computer 1 implements a predetermined program for controlling outdoor lighting at remote objects (platforms). Control commands from computer 1 are received at the transceiver 2. General control over the functioning of the lighting system through an automated workstation 3 is carried out by an energy dispatcher. On the platform, the operation of lighting installations according to the commands received by the transceiver 4 is controlled by the controller 5. The controller 5 is equipped with a backup power unit 6 in case of a failure in the general power system, which prevents the loss of information about the control modes of the lighting installation 8. From the controller outputs, control signals are transmitted to unit 7 control the power mode of lighting installations 8.

Based on the analysis of passenger flows in the evening and night time, it is possible to indicate such time intervals when the maximum illumination is necessary only at time moments immediately preceding the arrival of the train to the platform, at the time of embarkation and disembarkation and departure of the train. The rest of the time, the level of illumination can be significantly reduced (2-5 times). To implement such an algorithm, the output 9 of the train approach notification circuit is connected to the signal generation circuit 10. At the output of the signal generation circuit 10 for a time of 1-2 minutes before the train approaches and for the entire duration of the standstill until the train leaves the platform completely, a high signal will be generated logical level.

This signal is fed to one of the inputs of the logic element OR 11, thereby ensuring the appearance of a similar signal at the output of the specified element. This signal, arriving at the corresponding control input of the controller 5 forcibly (for the duration of the signal), sets the maximum power mode, which is provided by the power supply control unit 7 of the lighting installations 8. Accordingly, at this time, the illumination level created by the lighting installation 8 on the platform will be match the maximum value.

After the termination of this signal from the notification circuit of the train approaching (along the trailing edge of the pulse) signal generation circuit 10, a single-shot 12 is launched, the output of which will also generate a high-level signal for a given time, necessary for all passengers to leave the platform ( after the train leaves). This signal, arriving at another input of the logical element OR 11, provides the appearance of a similar signal at the output of the specified element. By analogy with the process described above, a high-level signal from the output of the OR element 11 enters the aforementioned control input of the controller 5 forcibly (for the duration of the signal), sets the maximum power mode, which is provided by the power supply control unit 7 of the lighting installations 8. Accordingly , at this time the level of illumination created by the lighting installation 8 on the platform will correspond to the maximum value.

Those passengers who, for whatever reason, are delayed on the platform, can, by pressing button 13, start the one-shot 14, the output of which will also generate a high-level signal for an additional time, which will go to another input of the OR gate 11. As described above Algorithm 8 lighting installations again for additional time will be turned on at full power.

Thus, at a time when the level of illumination is really needed no lower than the normalized values, lighting systems will work on platforms at full power. In other intervals of evening and night time, this can be significantly reduced, without negative impact on passenger safety. It is easy to calculate that even by the most conservative estimates, taking the average interval between trains of 20-30 minutes, and the total on-time of lighting systems for one train of 6-8 minutes, it is possible to determine at least a 50% reduction in energy costs for lighting passenger platforms. If we take into account the upcoming transition from traditional light sources to LEDs, this also means a significant extension of the life of such lamps.

Information sources

1. Lighting timer UMPT (P). Website: http: // http: www.fea-samara.ru

2. Automated control system for outdoor lighting SAF-500. http://www.drillings.ru/saf500.

Claims (1)

A lighting control device on railway platforms, containing a control room in which a computer with lighting system management software is connected to the transceiver, the computer is a part of the workstation of the energy dispatcher, and a control unit containing the transceiver connected to the controller is placed directly at the lighting installations equipped with a backup power supply, and the controller outputs are connected to the power supply control unit installations, characterized in that the output of the notification circuit of the train approaching through the signal conditioning unit is connected to one input of the OR logic element, a one-shot is connected to the other input of the named element, in addition, the contacts of the additional lighting enable button located on the lighting support or in other places along the route of passengers from the platform, connected to the input of the second one-shot, the output of which, in turn, is connected to the third input of the OR logic element, the output is indicated th element connected to one of the controller inputs control.