RAIL VEHICLE WITH A DISINFECTION SYSTEM

DE602022010431T2Active Publication Date: 2025-02-12ALSTOM HOLDINGS SA
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Patent Information

Application Number
DE602022010431
Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
Priority Date
2021-09-20
Filing Date
2022-09-19
Publication Date
2025-02-12
Estimated Expiration
2042-09-19

AI Technical Summary

Technical Problem

Current disinfection methods for public transport rolling stock, such as UV-C radiation lamps, are expensive, prone to human errors, environmentally unfriendly, and inefficient due to arbitrary placement and potential eye and skin hazards, leading to uneven disinfection and accelerated degradation of surfaces.

Method used

A disinfection system with UV-C lighting devices embedded in public transport vehicles, controlled by a centralized monitoring system, ensuring even disinfection coverage, automatic activation based on presence detection, and optimized energy dosage using sensors and reflective surfaces to minimize exposure and extend lifespan.

Benefits of technology

The system provides effective, autonomous, and secure disinfection of all passenger contact areas, reducing operational costs, minimizing human exposure risks, and maintaining sanitary conditions throughout the day without manual intervention.

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Description

[0001] The present invention relates to a public transport vehicle comprising a disinfection system, the disinfection system comprising lighting with a disinfecting wavelength (i.e. with biocidal properties) on board said vehicle, the lighting being configured to automatically disinfect the interior of said vehicle.

[0002] Disinfection systems using illumination at disinfectant wavelength are known from documents US 2021 / 260229 A1, FR 3 032 121 A1 and EP 3 929 084 A1.

[0003] The present invention relates to the field of regular disinfection of spaces accessible to the public and faced with a frequent, even regular, need for disinfection, and more particularly the disinfection of the interior of RS rolling stock (from the English Rolling Stock ) public transport, particularly within a railway vehicle, either due to a large number of people entering / exiting an area within the railway vehicle, or for smaller areas facing prolonged use by individuals, such as toilets or the driver's cabin of the railway vehicle).

[0004] Indeed, in the context of a pandemic such as that relating to the Sars-CoV-2 virus associated with the Covid-19 disease, or to combat episodes of flu, gastroenteritis, the proliferation of bacteria, etc., frequent disinfection of the interior of rolling stock is necessary to avoid cross-contamination of passengers touching potentially contaminated surfaces.

[0005] Due to their operation, such rolling stock, particularly urban and suburban platforms for which the need is greatest, are frequently empty of passengers, particularly during a night-time slot, which allows frequent and secure decontamination cycles to be carried out in the absence of human presence on board, for example when the railway vehicle has reached a depot or between two services at the end of the line.

[0006] A first solution to implement such disinfection (i.e. decontamination) is to carry it out mainly by manual chemical disinfection operations. However, such a first solution is very expensive, time-consuming, subject to human error and not very environmentally friendly.

[0007] To address this, disinfection solutions for public transport rolling stock have been developed and are, for example, based on the use of UV-C ultraviolet radiation lamps already used in the health and food sectors.

[0008] More specifically, to implement these UV-C lighting-based disinfection solutions for public transport rolling stock, operators install such UV-C lighting every night during maintenance service in each rail vehicle car. However, such UV-C lamps are generally placed quite arbitrarily in the vehicle passenger compartment, and do not allow for a uniform dose of UV-C energy to be delivered to all surfaces to be disinfected.

[0009] Disinfection is a matter of dosing the energy radiated by lighting, such dosage corresponding to a combination of lighting power and lighting time.

[0010] Wavelengths generally attenuate with distance traveled, making it necessary to increase the power of such lamps to ensure sufficient radiation on more distant surfaces.

[0011] Furthermore, when limited by operational aspects such as time, number of vehicles / rail cars to be disinfected, number of lamps available, there is usually no other choice than to use very powerful lamps to be able to treat more areas to be disinfected per unit of time.

[0012] However, such an increase in power proves costly and in return results in high radiation doses for surfaces close to the lamp, and resulting accelerated degradation (i.e. aging) of these nearby surfaces.

[0013] Furthermore, due to the potential danger of UV-C light to humans, particularly to the eyes and skin, its use for daily disinfection of rolling stock remains complex and expensive.

[0014] One of the aims of the invention is to overcome the aforementioned drawbacks by proposing a solution for disinfecting a railway vehicle that is effective in treating all areas of high passenger contact, autonomous and secure, and easy to integrate.

[0015] To this end, the invention relates to a public transport vehicle, in particular a railway vehicle comprising a disinfection system, the disinfection system comprising lighting with a disinfecting wavelength on board said vehicle, the lighting comprising at least one lighting device with a disinfecting wavelength, the lighting being configured to automatically disinfect the interior of said vehicle, said lighting being automatically controlled centrally by a control and monitoring system of said vehicle.

[0016] According to a particular embodiment, the vehicle comprises one or more of the following characteristics, taken individually or in all technically possible combinations: the disinfectant wavelength lighting comprises a plurality of disinfectant wavelength lighting devices distributed within said vehicle, parallel to the ceiling of said vehicle, in at least one of the following spaces of said vehicle: a passenger compartment, a toilet space, a driver's cabin, a goods transport space, a catering space, a passenger entry / exit platform on board said vehicle; the control and monitoring system of said vehicle is configured to activate each lighting device according to a predetermined frequency associated with the type of space in which said lighting device is installed; each lighting device is a UV-C ultraviolet radiation lighting belonging to the group comprising at least: a tube, pulsed or continuous wave UV-C lamp; a laser UV-C lamp;at least one UV-C light-emitting diode connected to the control and monitoring system of said vehicle via a static converter; a lighting device corresponding to at least one UV-C light-emitting diode connected to the control and monitoring system of said vehicle via a static converter is suitable for being combined with at least one light-emitting diode configured to provide white light; each lighting device is suitable for being integrated within lighting equipment comprising a glass or a transparent polymer for diffusing the radiation produced by said lighting device towards the interior of said vehicle; the activation of at least one of said lighting devices is dependent on the absence of human presence detected by at least one presence detector installed near said lighting device;the vehicle further comprises at least one surface configured to reflect the disinfecting wavelength lighting of said disinfection system; the vehicle further comprises a feedback loop, connected to said control and monitoring system of said vehicle, and configured to optimize the activation of said disinfecting wavelength lighting by means of a sensor belonging to the group comprising at least: an active dosimetry sensor capable of quantifying the received energy associated with the radiation of said disinfecting wavelength lighting, said active sensor being installed in a predetermined location within said vehicle, in which said sensor is capable of receiving said radiation of said disinfecting wavelength lighting;an active dosimetry sensor capable of quantifying the received energy associated with said radiation of said disinfectant wavelength lighting, said active sensor being installed at the disinfectant wavelength lighting and combined with a reflective surface whose location within said vehicle is configured to make it reflect the received radiation in the direction of said active sensor installed at the disinfectant wavelength lighting; a passive sensor capable of physically reacting to the radiation of said disinfectant wavelength lighting, the physical reaction of said passive sensor being representative of radiation of said disinfectant wavelength lighting greater than a predetermined threshold;at least one element of said vehicle suitable for being illuminated by said lighting at disinfecting wavelength is covered with a coating configured to protect it from accelerated aging by said radiation of said lighting at disinfecting wavelength.;

[0017] Other characteristics and advantages of the invention will emerge from the detailed description given below, for information purposes only and in no way limiting, with reference to the appended figures, among which: [ Fig 1 ] there figure 1 schematically illustrates a vehicle, in particular a railway vehicle, comprising a disinfection system according to a first embodiment of the invention; [ Fig 2 ] there figure 2 illustrates the integration of a disinfection system within a vehicle, in particular a railway vehicle, according to a particular variant of the present invention.

[0018] There figure 1 represents a public transport vehicle 10 according to a first embodiment of the invention, such a vehicle 10 comprising a disinfection system. The vehicle 10 is here a railway vehicle. Alternatively, the vehicle 10 is a road vehicle, such as a bus or a coach, an air vehicle or a naval vehicle.

[0019] The disinfection system comprises lighting with a disinfecting wavelength (i.e. with biocidal properties) on board said railway vehicle 10, the lighting comprising at least one lighting device with a disinfecting wavelength, the lighting being configured to automatically disinfect the interior of said railway vehicle.

[0020] According to a particular aspect not shown, it should be noted in particular that lighting with visible wavelengths, in particular between 400 and 420nm, is capable of having a disinfectant effect, which is capable of allowing integration within existing lighting, for example with white light.

[0021] According to a particular example, the disinfection system according to the present invention is based on UV-C ultraviolet lighting associated with a spectral band of 100 to 280 nm.

[0022] In particular, each lighting device capable of providing UV-C ultraviolet radiation lighting belongs to the group comprising at least: a tube (gas), pulsed or continuous wave UV-C lamp, a laser UV-C lamp, at least one UV-C light-emitting diode, each UV-C ultraviolet radiation lighting device of said group being capable of being connected to the control and monitoring system 22 of said railway vehicle via a static CVS ​​converter (from the English Continuously Variable Slope Delta modulation ), and / or via a module, for adapting the LCU light beam (from the English Light Control Unit ), such an LCU module being capable of introducing a PWM pulse width modulation (from the English Pulse Width Modulation ) to, for example, control the intensity of the LEDs.

[0023] According to the particular example of the figure 1 , such UV-C ultraviolet illumination comprises the use of lasers or tubes 12 connected to a static CVS ​​converter and / or an LCU, not shown in the figure 1 , suitable for providing low voltage current, more bulky, and / or the use of 14 UV-C light-emitting diode light spots, also called UV-C LEDs (from the English light-emitting diode ) connected to a CVS static converter and / or to an LCU, such UV-C LEDs being now technologically available and whose achievable power level is constantly increasing with technological progress, which allows their compact integration in the interiors of railway rolling stock, or even within existing general lighting luminaires within the railway vehicle. Indeed, UV-C LEDs are suitable for being easily coupled to microcontrollers on printed circuits, which makes it possible to design and integrate an intelligent autonomous system in the ceilings or roof arches of the railway vehicle as illustrated by the figure 1 .

[0024] In particular, a set of UV-C light-emitting diodes allows for better distribution of illumination within the volume to be disinfected and avoids illumination disparities with highly illuminated and possibly degraded areas and areas that are too weakly illuminated to be disinfected.

[0025] As illustrated in the example of the figure 1 , the railway vehicle according to the present invention is capable of presenting a combination of these two types of UV-C ultraviolet lighting, for example by installing UV-C ultraviolet lighting with lasers or tubes 12 connected to a static CVS ​​converter, not shown, within a toilet space 16, spots 14 with UV-C light-emitting diodes connected to a static CVS ​​converter in the ceiling of a passenger car 18 of the railway vehicle 10, and UV-C ultraviolet lighting with lasers or tubes 12 connected to a static CVS ​​converter, not shown, within a driver's cabin 20. The upstream lighting simulation makes it possible to design an optimal distributed lighting scheme adapted to the very design of the volume to be treated.Such an optimal distributed lighting scheme makes it possible to use less powerful lighting in certain areas, in particular by means of the UV-C light-emitting diode spotlights 14, and thus to use less degrading (i.e. damaging) lighting conditions for the surfaces near the lamps 12.

[0026] In other words, the lighting with a disinfectant wavelength (i.e. with biocidal properties) comprises a plurality of lighting devices with a disinfectant wavelength distributed within said railway vehicle 10, parallel to the ceiling of said vehicle, in at least one of the following spaces of said railway vehicle, a passenger compartment 18, a toilet space 16, a driver's cabin 20, or in a manner not shown, a goods transport space, a catering space, a passenger entry / exit platform on board said railway vehicle, etc.

[0027] Advantageously and specifically according to the present invention, each element of the disinfectant wavelength lighting system (i.e. with biocidal properties) on board said railway vehicle 10 is automatically controlled centrally by a TCMS (Train Control and Monitoring System) control and monitoring system 22 of said railway vehicle 10.

[0028] Such centralized control by TCMS 22 proposed specifically according to the present invention makes it possible in particular to easily program the activation / deactivation of illumination cycles, if necessary, as detailed below, in coupling with one or more presence detector(s) within the railway vehicle and / or with any other safety mechanism of the railway system of the railway vehicle 10 considered, in order to allow automated remote control while avoiding the human presence of operators on site.

[0029] As illustrated on the figure 1 , the use of light spots 24 with UV-C light-emitting diodes is also suitable for being implemented within the driver's cabin 20, and the TCMS 22 is suitable for controlling an activation / deactivation button 26 located within the dashboard 28 of this driver's cabin 20 or in a protected electrical cabinet located outside the cabin. The light spots 24 with UV-C light-emitting diodes make it possible in particular to treat the dashboard 28, and are connected to the TCMS 22 (although this is not explicitly shown on the figure 1 ).

[0030] According to the present invention, the TCMS 22 is capable of generating a set 30 comprising at least one program, and / or instructions for controlling the disinfectant wavelength lighting system (i.e. with biocidal properties), and / or an associated operating report.

[0031] According to a particular aspect, the control and monitoring system 22 of the railway vehicle 10 is configured to activate each lighting device according to a predetermined frequency associated with the type of space in which said device is installed.

[0032] Disinfectant light sources (i.e. with biocidal properties), in particular UV-C, integrated inside the rolling stock at strategic locations and with optimal power, in particular based on lighting simulations and other specific arrangements, can be activated remotely to carry out regular and automatic disinfection of the air and internal surfaces of the vehicle against pathogens, including viruses such as SARS-COV2.

[0033] An example of programming aimed for example at programming: the activation of the disinfectant wavelength lighting, in particular UV-C ultraviolet, lasers or tubes 12 in the toilet area 16 between each passenger passage, the activation of the UV-C light-emitting diode spotlights 14 connected to a CVS static converter and / or to an LCU in the ceiling of a passenger car 18 of the railway vehicle 10 between two separate services, and the activation of the disinfectant wavelength lighting (i.e. with biocidal properties), in particular UV-C ultraviolet, lasers or tubes 12 or LED 24 within the driver's cabin 20 between each change of driver.

[0034] In terms of dosage, corresponding to a combination of lighting power and lighting time, an example of a significant dose, particularly in terms of antimicrobial effect including on viruses such as SARS-COV2, is of the order of 10mJ / cm 2< or 10W / m 2< in the case of 10 seconds of lighting. Such a dosage depends on the exact emission spectrum of the disinfectant wavelength lighting used, as well as the nature of the surface to be treated, particularly in terms of type of material, surface finish, state of cleanliness, etc. and must therefore be refined accordingly.

[0035] For example, one-hour UV-C lighting, as might be the case between two services to decontaminate passenger cars 18, requires, for example, a power of the order of 0.028W / m 2< , five-minute lighting, as might be the case between two driver changes, requires, for example, a power of the order of 0.33W / m 2< , ten-second lighting, for example to treat toilets between two occupancies, requires, for example, a power of the order of 10W / m 2< .

[0036] The automatic and centralized control implemented according to the present invention provides processing flexibility, capable of being initiated on demand or on a diurnal basis instead of having to wait for the duration of a complete service, which usually ends at the end of the day. As a result, rolling stock interiors can be kept sanitary and secure throughout the day, instead of potentially becoming increasingly contaminated as the service progresses, particularly in the driver's cab to allow decontamination between driver changes, without the need for a return to the depot or the dispatch of a manual decontamination team.

[0037] Furthermore, it should be noted that the 14 spots with UV-C light-emitting diodes have the advantage of being easily integrated into a rolling interior, because of their reduced size and power compared to conventional lighting based on lasers or tubes 12, which allows them to be integrated in the form of spots with UV-C light-emitting diodes.

[0038] Such UV-C LED spots close to the surface can provide a similar UV-C dose, but through softer illumination, compared to a pulsed or non-pulsed lamp 12, which will be less damaging to the interior surface, in more critical areas, especially where there are many plastics. This is particularly advantageous taking into account that the intensity of the light radiation attenuates greatly over the travel distance, especially proportional to the square of the distance. Thus, UV-C LED spots 14, suitable for integration closer to the surfaces to be treated, clearly have an advantage in terms of overall effectiveness.

[0039] According to a first integration option, a lighting device corresponding to at least one UV-C light-emitting diode, or corresponding to lighting with a disinfectant wavelength (i.e. with biocidal properties), connected to the control and monitoring system 22 of said railway vehicle 10 via a CVS static converter is suitable for being combined with at least one light-emitting diode configured to provide white light for general lighting or ambient lighting. Such a combination would have a dual function, thus offering a very efficient solution in terms of integration and space, the UV-C light-emitting diodes and the light-emitting diodes being suitable for being activated separately.Such a combination is capable of diffusing light through a transparent surface for a predetermined range of visible and UV-C wavelengths, corresponding in particular to a glass or a transparent polymer for diffusing the radiation produced by said lighting device towards the interior of the railway vehicle 10, such a transparent surface for a predetermined range of visible wavelengths also allowing the UV-C radiation to pass through in particular when it is activated.

[0040] According to a second option, devices dedicated solely to the provision of UV-C lighting are implemented, in particular according to a first variant, in the form of UV-C light-emitting diode ramps, comprising for example two superimposed lines of six UV-C LEDs, the number six being given as an example while remaining completely arbitrary, according to a second variant in the form of two superimposed UV-C gas lamps (i.e. a tube) instead of the two superimposed lines of six UV-C LEDs, or according to a third variant in the form of individual spots, each spot comprising a single UV-C LED, these three variants being capable of diffusing light through a transparent surface for a predetermined range of visible and UV-C wavelengths, corresponding in particular to a glass or a transparent polymer for diffusing the radiation produced by said lighting device towards the interior of the railway vehicle 10.

[0041] As an optional addition, as illustrated by the figure 2 , the activation of at least one of said disinfectant wavelength lighting devices, in particular a UV-C lamp 12, is dependent on the absence of human presence within the railway vehicle 10, the absence of human presence being detected by at least one presence detector 32 installed near said lighting device 12 and / or by analysis of the video streams from the video surveillance cameras integrated into the rolling stock.

[0042] Such an aspect complements in particular integrated safety mechanisms, usually present in railway vehicles, and ensuring that the UV-C lighting cycles can only be activated when no one is on board. In other words, according to this optional additional aspect, the lighting devices with disinfectant wavelength, in particular UV-C type lighting, are suitable for being coupled with integrated presence detection sensors 32, so that the light switches off automatically as soon as a human being is detected in the lighting field.

[0043] As an optional addition, depending on the particular embodiment illustrated by the figure 2 , the railway vehicle 10 further comprises a feedback loop, connected to said system 22 for controlling and monitoring said railway vehicle, and configured to optimize the automatic activation of said lighting 12 at disinfecting wavelength by means of a sensor corresponding to an active dosimetry sensor 34 capable of quantifying the energy received associated with said radiation of said lighting at disinfecting wavelength.

[0044] As illustrated by the figure 2 , such a dosimeter 34 feeds back, via a microcontroller 36 and / or the TCMS control system 22 on the activation of the lamp 12.

[0045] The active dosimetry sensor 34 is in particular installed at the level of (i.e. in a plane substantially equal to that of) the lighting 12 at disinfecting wavelength and combined, for example at the level of the ground 38, with a reflective surface 40 whose location within said railway vehicle (not necessarily on the ground) is configured to make it reflect the radiation received in the direction of said active dosimetry sensor 34 installed at the level of the lighting at disinfecting wavelength.

[0046] In other words, depending on the method of implementation of the figure 2 , the active dosimetry sensor 34 is protected from direct illumination of the emitting component, such as the UV-C lamp 12, and a UV-C reflective component 40 (i.e. UV-C reflector) is advantageously placed on the floor 38 of the interior surface of the rolling stock to act as a calibrated reflector. Such an embodiment has the advantage of allowing easy integration by using a single electronic lighting activation card 12 with an integrated feedback loop.

[0047] A UV-C 40 reflector, for example, is a piece of metal such as aluminum or PTFE or e-PTFE that has a UV-C reflectivity close to 95%.

[0048] Implementing such a feedback loop is advantageous in particular to ensure quality control by design, to compensate for the effects of lamp aging, as UV-C lamps tend to age quite quickly, and to be able to turn off the lighting as soon as the necessary dose has been delivered to the surfaces so as not to unnecessarily degrade the materials.

[0049] As an alternative to the embodiment of the figure 2 , the active dosimetry sensor capable of quantifying the received energy associated with the radiation of said lighting at disinfecting wavelength, instead of being installed at the level of (i.e. in a plane substantially equal to that of) the lighting 12 at disinfecting wavelength, is installed in a predetermined location within said railway vehicle 10, in which said sensor is capable of directly receiving said radiation of said lighting at disinfecting wavelength, for example in place of the reflector 40 at ground level 38 shown in the figure 2 .

[0050] The predetermined installation location of the active dosimetry sensor is particularly suitable for facilitating its connection to the TCMS control and monitoring system 22, such a connection being suitable for being direct or via the microcontroller 36 shown in the figure 2 , or the predetermined location is suitable for facilitating its own maintenance, etc., and has been previously calibrated.

[0051] Such an active dosimetry sensor corresponds in particular to a photodiode sensitive to UV-C.

[0052] According to another alternative, the active dosimetry sensor is replaced by a passive sensor (i.e. passive dosimeter) capable of reacting physically to the radiation of said lighting at disinfecting wavelength, the physical reaction of said passive sensor being representative of radiation of said lighting at disinfecting wavelength greater than a predetermined threshold, such a predetermined threshold corresponding to the achievement of the illumination dose necessary to obtain a predetermined level of decontamination.

[0053] In particular, the physical reaction of such a passive sensor integrated within the feedback loop corresponds to a color change, and the use of such a passive sensor within the feedback loop has the advantage of being economical in comparison with feedback loop variants integrating an active sensor.

[0054] The quality control of the reaction of the passive sensor is, according to a first variant, suitable for being carried out by an operator, or according to a second variant, if the dosimeter is advantageously placed in the field of vision of a camera on board the railway vehicle, in particular a CCTV surveillance and control system camera (from the English Closed-Circuit TeleVision ) existing within the passenger compartment of the rolling stock of the railway vehicle, suitable for being carried out by means of such a camera, in particular using an image analysis and color detection algorithm, to transmit a control signal to the TCMS 22 control and monitoring system.

[0055] According to another optional addition, in order to reduce the number of disinfectant wavelength lighting devices distributed within said railway vehicle and necessary to exhaustively cover the disinfection of the entire interior surface and to treat, due to the presence of obstacle 42 to the incident radiation RI, shadow zones 44, as illustrated in the presence of a seat within the figure 2 , the rail vehicle 10 further comprises at least one surface 46 configured to reflect, as illustrated by the RF rays on the figure 2 , the disinfecting wavelength lighting of said disinfection system.

[0056] In particular, thanks to the reflective surface 46, the size of the surface 44 is reduced and smaller than the seat base 42, whereas in the absence of such a reflective surface 46 the size of the shadow zone 44, not reached by the lighting at disinfecting wavelength and therefore not decontaminated, would be greater than that of the seat base 42.

[0057] For example, such a reflective surface 46 corresponds to a material, coating or surface finish, in particular in the form of a transparent film having optimized UV-C reflectivity, so that at least part of the areas which are not in the direct line of sight of the UV-C luminaire can still be illuminated.

[0058] For example, UV-C reflective coatings have been developed for space applications, where UV-C radiation is likely to occur.

[0059] As an optional addition, not shown, at least one element of said railway vehicle, suitable for being illuminated by said lighting at disinfecting wavelength, is covered with a coating configured to protect it from accelerated aging by said radiation of said lighting at disinfecting wavelength.

[0060] Such an optional additional aspect makes it possible in particular to offer protection of rolling stock materials against aging induced by radiation at disinfectant wavelengths, in particular UV-C. Indeed, certain rolling stock components are likely to use materials that are very sensitive to UV-C radiation. Instead of looking for an alternative material, such a UV-C protective coating, in particular in the form of a transparent film, is suitable for being applied to identified fragile components, such as thermoplastics, polycarbonates, paints, etc.

[0061] Those skilled in the art will understand that the invention is not limited to the embodiments described, nor to the particular examples of the description, the embodiments and variants mentioned above being suitable for being combined with each other to generate new embodiments of the invention.

[0062] The present invention thus proposes a solution for disinfecting the interior of railway rolling stock by integrating disinfectant wavelength lighting with remote control that can be easily implemented via the existing TCMS of a railway vehicle.

[0063] Such remote control of the activation of the disinfectant wavelength lighting, in particular UV-C, makes it possible to implement automatic and regular (i.e. periodic) disinfection, increasing safety during disinfection operations, as human presence within the railway vehicle is avoided, and offering disinfection flexibility with an increase in disinfection frequency, including during the day or even on demand as soon as a period of non-use occurs.

[0064] A solution such as a lighting solution with a disinfectant effect, in particular integrated and remotely controllable UV-C, is advantageously economical, because it reduces investment and operating costs for a vehicle operator such as a railway operator, and increases the lifespan of railway rolling stock interiors compared to other UV-C lighting solutions, which results in a reduced frequency of repair (i.e. maintenance). In addition, from a safety point of view, the present invention based on automatic remote disinfection control makes it possible to reduce the risks of potential accidents involving human operators, and due to its visible nature is likely to reassure passengers.

Claims

1. A railway vehicle (10), comprising a disinfection system, the disinfection system comprising lighting at a disinfecting wavelength on board said vehicle (10), the lighting comprising at least one lighting device (12, 14) at a disinfecting wavelength, the lighting being configured to automatically disinfect the interior of said vehicle, the vehicle being characterised in that said lighting is automatically controlled centrally by a TCMS control and monitoring system (22) of said vehicle (10).

2. The vehicle (10) of claim 1, wherein the disinfectant wavelength lighting comprises a plurality of disinfectant wavelength lighting devices (12, 14) distributed within said vehicle, parallel to the ceiling of said vehicle, in at least one of the following spaces of said vehicle: - a passenger compartment (18), - a toilet area (16), - a driver's cab (20), - a freight transport area, - a catering area, - a passenger entry / exit platform on board said vehicle3. A vehicle (10) according to claim 2, wherein the control and monitoring system (22) of said vehicle is configured to activate each lighting device (12, 14) according to a predetermined frequency associated with the type of space (16, 18, 20) in which said lighting device is installed.

4. A vehicle (10) according to any one of claims 1 to 3, wherein each lighting device is a UV-C ultraviolet radiation lighting belonging to the group comprising at least: - a UV-C tube lamp (12), pulsed or with continuous wave; - a UV-C laser lamp; - at least one UV-C light-emitting diode (14) connected to the control and monitoring system (22) of said vehicle via a static converter.

5. A vehicle (10) according to claim 4, wherein a corresponding lighting device has at least one UV-C light emitting diode (14) connected to the control and monitoring system (22) of said vehicle via a static converter is adapted to be combined with at least one light emitting diode configured to provide white light.

6. A vehicle (10) as claimed in claim 4 or 5, in which each lighting device is suitable for being integrated within lighting equipment comprising a transparent glass or polymer for diffusing the radiation produced by said lighting device towards the interior of said vehicle.

7. A vehicle (10) according to any one of claims 1 to 6, in which the activation of at least one of the said lighting devices is dependent on the absence of human presence detected by at least one presence detector (32) installed in the vicinity of the said lighting device.

8. A vehicle (10) according to any one of the preceding claims further comprising at least one surface (40, 46) configured to reflect the disinfecting wavelength lighting of said disinfection system.

9. A vehicle (10) according to any one of the preceding claims, further comprising a feedback loop, connected to said system (22) for controlling and monitoring said vehicle, and configured to optimise the activation of said disinfectant wavelength lighting by means of a sensor belonging to the group comprising at least: - an active dosimetry sensor capable of quantifying the received energy associated with the radiation from said disinfectant wavelength lighting, said active sensor being installed in a predetermined location within said vehicle, wherein said sensor is adapted to receive said radiation from said disinfectant wavelength lighting; - an active dosimetry sensor (34) suitable for quantifying the energy received associated with said radiation from said disinfectant wavelength lighting, said active sensor being installed at the disinfectant wavelength lighting and combined with a reflective surface whose location within said rail vehicle is configured to cause it to reflect the radiation received in the direction of said active sensor installed at the disinfectant wavelength lighting; - a passive sensor capable of physically responding to radiation from said disinfectant wavelength illumination, the physical response of said passive sensor being representative of radiation from said disinfectant wavelength illumination in excess of a predetermined threshold.

10. A vehicle (10) according to any one of the preceding claims, in which at least one element of the said rail vehicle suitable for being illuminated by the said lighting at a disinfecting wavelength is covered with a coating configured to protect it from ageing accelerated by the said radiation from the said lighting at a disinfecting wavelength.