WO2018166592A1 - Retrofit-kit with switch module for light post, light post supply device, light post, street lighting and method for providing data communication - Google Patents

Retrofit-kit with switch module for light post, light post supply device, light post, street lighting and method for providing data communication Download PDF

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Publication number
WO2018166592A1
WO2018166592A1 PCT/EP2017/056131 EP2017056131W WO2018166592A1 WO 2018166592 A1 WO2018166592 A1 WO 2018166592A1 EP 2017056131 W EP2017056131 W EP 2017056131W WO 2018166592 A1 WO2018166592 A1 WO 2018166592A1
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WO
WIPO (PCT)
Prior art keywords
power
operation power
data
light post
kit
Prior art date
Application number
PCT/EP2017/056131
Other languages
French (fr)
Inventor
Tobias HUGO
Original Assignee
Omexom Ga Süd Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Omexom Ga Süd Gmbh filed Critical Omexom Ga Süd Gmbh
Priority to PCT/EP2017/056131 priority Critical patent/WO2018166592A1/en
Priority to EP17716467.0A priority patent/EP3597011A1/en
Publication of WO2018166592A1 publication Critical patent/WO2018166592A1/en

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/175—Controlling the light source by remote control
    • H05B47/185—Controlling the light source by remote control via power line carrier transmission

Definitions

  • the invention relates to a retrofit-kit for providing data communication. Furthermore, the invention relates to a light post. Further, the invention relates to a light post supply device for supplying at least one light post with operation power. Moreover, the invention relates to street lighting with a plurality of light posts and with a light post supply device for supplying the plurality of light posts with operation power. Finally, the invention relates to a method for providing access to data communication. Retrofit-kit, light post supply devices, light posts, street lighting and methods for providing access to data communication are generally known. However, electronics for providing data communication can only provide data communication access in case such electronics are supplied with operation power. Known light posts, however, do not continuously receive operation power from a respective light post supply device, such that known light post power supplies can not be used to continuously supply electronics for providing data
  • a light post supply device for supplying access to data communication, which can be installed easily and which provides access to data communication in a continuous manner.
  • the retrofit-kit is a retrofit-kit for retrofitting a light post with a data access point
  • the retrofit-kit comprises a power input for receiving operation power, a lamp operation power output for outputting at least a part of the operation power as lamp operation power to a lamp of the light post, and a switch module that interconnects the power input and the lamp operation power output, wherein the switch module is connected to the power input in a control data receiving manner and is adapted to control supply of the lamp operation power to the lamp operation power output based on the control data received from the power input.
  • the object is achieved in that the light post supply device comprises a control data transmitting device for transmitting control data for switching on and off lamps of light posts, wherein the control data transmitting device is connected to a power output of the light post supply device in a data transmitting manner. Furthermore, the object is achieved for the above-mentioned light post in that the light post comprises the retrofit-kit according to the invention. For the street lighting mentioned above, the object is achieved in that all of the light posts comprise the retrofit-kit according to the invention, and in that the light post supply device is the light post supply device according to the invention.
  • the object is achieved for the above-mentioned method for providing access to the data communication in that the method comprises continuously providing operation power to a light post, switching a part of the operation power output to a lamp of the light post as lamp operation power based on control data received with the operation power, continuously providing a part of the operation power as data access point operation power to a data access point, and transmitting control and payload data via a line that conducts the operation power to and from the data access point.
  • lamp operation power can be switched independent of the operation power provided to the electronics required for providing data communication access based on the control data, such that the lamps can be switched on and off, as required e.g. in order to save power.
  • the lamp operation power and the operation power for the electronics required for providing data communication access are both derived from the operation power provided to the light post, no additional power lines are required, but preinstalled power line that provide light post operation power can be used. Furthermore, as control any payload data are transported via the preinstalled power line, no additional data cables need to be installed between the light post supply device and the light posts.
  • the switch module can be adapted to decode control data encoded in the operation power by phase cutting the operation power.
  • the operation power is usually AC operation power.
  • Phase cutting operation power is an easy and robust manner for encoding control data that does not require a high quality data line. Furthermore, phase cutting does not significantly affect operation power supply.
  • the control data can be encoded by phase cutting less than all half-waves or less than all full-waves of the operation power.
  • phase cutting less than all half-waves of the operation power the operation power submitted is reduced less than when cutting all of the half-waves, thereby improving power transfer to electronics providing data communication access, e.g. the electronics of the retrofit-kit, or to the lamp.
  • the phase only of positive half- waves or only of negative half-waves can be cut.
  • only selected half-waves are phase cut.
  • phase cutting can be applied to every n th half-wave or to every n th full-wave of the operation power, only.
  • the letter n may represent a number between 2 and 1000, for example 2, 5, 10, 20, 50 or 100.
  • control data may comprise address data assigned to switch modules or groups of switch modules, such that lamps of selected light posts or of groups of light posts can be switched on and/or off independent of other light posts.
  • the switch module can be connected to the power input in a switch module operation power transmitting manner.
  • the switch module can be operated by the operation power supplied to the power input, such that no separate power input or operation power supply is required for the switch module.
  • the retrofit-kit may comprise a power-line communication device, e.g. a power-line communication slave that is connected to the power input in a signal transmitting manner.
  • a power-line communication device e.g. a power-line communication slave that is connected to the power input in a signal transmitting manner.
  • the power-line communication device can be connected to the power input in a power-line communication device operation power receiving manner, such that no additional power input or power supply is required for the power-line communication device.
  • the retrofit-kit may comprise a data access point that may be a wireless access point and that can be connected to the power-line communication device in a data signal transmitting manner.
  • the data access point may comprise an antenna and electronics for transmitting data between the antenna and the power-line communication device.
  • the data access point can be connected to the power input in a wireless access point operation power receiving manner, such that no separate power input or operation power line is required for the data access point.
  • the power-line communication device can interconnect the power input and the data access point in a data access point operation power transmitting manner, such that even within the electronics for providing access to data communication, e.g. within the retrofit-kit, no additional power line that directly interconnects the power input and the wireless access point is required.
  • the switch module, the power-line communication device, the data access point and/or an optional power/data module for interconnecting the power-line communication device and the data access point in an operation power and data transmitting manner in a pylon of the light post, the switch module, the power-line communication device, the wireless access point and/or the optional power/data module can be arranged after each other in a longitudinal direction.
  • the longitudinal direction may correspond to a height direction of the light post.
  • the light post may comprise a power input for receiving operation power, e.g. light post operation power, a lamp operation power output for outputting at least a part of the operation power as lamp operation power to a lamp of the light post, and a switch module that interconnects the power input and the lamp power operation output, wherein the switch module is connected to the power input in a control data receiving manner and is adapted to control supply of the lamp operation power to the lamp operation power output, i.e. to the lamp, based on the control data received from the power input.
  • the light post does not need to be equipped with additional power or data ports such that the already pre-installed or present power input can be used for supplying the electronics for providing access to data communication of the light post and the lamp.
  • the switch module can be adapted to decode control data encoded in the operation power by phase cutting the operation power.
  • the operation power is usually AC operation power.
  • Phase cutting operation power is an easy and robust manner for encoding control data that does not require a high quality data line. Furthermore, phase cutting does not significantly affect operation power supply.
  • the control data can be encoded by phase cutting less than all half-waves or less than all full-waves of the operation power.
  • phase cutting less than all half-waves of the operation power the operation power submitted is reduced less than when cutting all of the half-waves, thereby improving power transfer to the light post.
  • the phase only of positive half-waves or only of negative half-waves can be cut.
  • only selected half-waves are phase cut.
  • phase cutting can be applied only to every n th half-wave or only to every n th full-wave of the operation power.
  • the letter n may represent a number between 2 and 1000, for example 2, 5, 10, 20, 50 or 100.
  • the phase of only one half-wave or of only one full-wave per minute can be cut, such that for example only every fiftieth or sixtieth wave is cut.
  • the switch module can be connected to the power input of the light post in a switch module operation power transmitting manner.
  • the switch module can be operated by the light post operation power supplied to the power input, such that no separate power input or operation power supply is required for the switch module.
  • the light post may comprise a power-line communication device, e.g. a power-line communication slave that is connected to the power input in a signal transmitting manner.
  • a power-line communication device e.g. a power-line communication slave that is connected to the power input in a signal transmitting manner.
  • the power-line communication device can be connected to the power input in a power-line communication device operation power receiving manner, such that no additional power input or power supply is required for the power-line communication device.
  • the light post may comprise a data access point that is connected to the power-line communication device in a data signal transmitting manner.
  • the data access point may be a wireless access point.
  • the wireless access point may comprise an antenna and electronics for transmitting data between the antenna and the power-line communication device.
  • the data access point can be connected to the power input in a data access point operation power receiving manner, such that no separate power input or operation power line is required for the data access point.
  • the power-line communication device can interconnect the power input and the data access point in a data access point operation power transmitting manner, such that no additional power line that directly interconnects the power input and the data access point is required.
  • the switch module, the power-line communication device, the data access point and/or an optional power/data module for interconnecting the power-line communication device and the data access point in an operation power and data transmitting manner in a pylon of the light post, the switch module, the power-line communication device, the wireless access point and/or the optional power/data module can be arranged after each other in a longitudinal direction.
  • the longitudinal direction may correspond to a height direction of the light post.
  • all of the light posts may comprise a power input for receiving operation power, e.g. light post operation power, a lamp operation power output for outputting at least a part of the operation power as lamp operation power to a lamp of the light post and a switch module that interconnects the power input and the lamp power operation output, wherein the switch module is connected to the power input in a control data receiving manner and is adapted to control supply of the lamp operation power to the lamp operation power output, i.e. to the lamp, based on the control data received from the power input.
  • operation power e.g. light post operation power
  • lamp operation power output for outputting at least a part of the operation power as lamp operation power to a lamp of the light post
  • a switch module that interconnects the power input and the lamp power operation output, wherein the switch module is connected to the power input in a control data receiving manner and is adapted to control supply of the lamp operation power to the lamp operation power output, i.e. to the lamp, based on the control data received from the power input.
  • the light posts do not need to be equipped with additional power or data ports such that already pre-installed or present power inputs can be used for supplying the electronics of the light posts and the lamp.
  • the switch module can be adapted to decode control data encoded in the operation power by phase cutting the operation power.
  • the operation power is usually AC operation power.
  • Phase cutting operation power is an easy and robust manner for encoding control data that does not require a high quality data line.
  • phase cutting does not significantly affect operation power supply.
  • the control data can be encoded by phase cutting less than all half-waves or less than all full-waves of the operation power. By phase cutting less than all half-waves of the operation power, the operation power submitted is reduced less than when cutting all of the half-waves, thereby improving power transfer to the light post.
  • phase only of positive half-waves or only of negative half-waves can be cut.
  • only selected half-waves are phase cut.
  • phase cutting can be applied only to every n th half-wave or only to every n th full-wave of the operation power.
  • the letter n may represent a number between 2 and 1000, for example 2, 5, 10, 20, 50 or 100.
  • the phase of only one half-wave or of only one full-wave per minute can be cut, such that for example every fiftieth or sixtieth wave is cut.
  • the amount of power supply is almost not reduced at all by the phase cutting, whereas sufficient data can be encoded for timely switching on or off the lamp operation power.
  • the switch module can be connected to the power input of a respective light post in a switch module operation power transmitting manner.
  • the switch module can be operated by the light post operation power supplied to the power input, such that no separate power input or operation power supply is required for the switch module.
  • the street lighting and in particular at least selected (i.e. less than all) of the light posts may comprise a power-line communication device, e.g. a power-line communication slave, that is connected to the power input in a signal transmitting manner.
  • a power-line communication device e.g. a power-line communication slave
  • the data for the data access communication can be easily transported to the light posts via the operation power lines which are already interconnecting preinstalled light post supply devices and light posts.
  • the power-line communication device can be connected to the power input in a power-line communication device operation power receiving manner, such that no additional power input or power supply is required for the power-line communication device.
  • the selected light posts may comprise a data access point that may be a wireless access point and can connected to the power-line communication device in a data signal transmitting manner.
  • the wireless access point may comprise an antenna and electronics for transmitting data between the antenna and the power-line communication device.
  • the data access point can be connected to the power input in a data access point operation power receiving manner, such that no separate power input or operation power line is required for the data access point.
  • the power-line communication device can interconnect the power input and the data access point in a data access point operation power transmitting manner, such that even within the light posts, no additional power line that directly interconnects the power input and the data access point is required.
  • less than all light posts can comprise a power-line communication device that is connected to the power input in a data signal transmitting manner.
  • every second, every third, every fourth, every fifth, up to every tenth or up to every twentieth light post can be equipped with a power-line communication device.
  • selected or all of the light posts that comprise the power-line communication device can each comprise a wireless access point that is connected to the power-line communication device at least in a data signal transmitting manner or, additionally, in a wireless access point operation power receiving manner.
  • the power-line communication device or a power/data device can interconnect the power input and the wireless access point in a wireless access point operation power and optionally, also in a payload data transmitting manner.
  • the light post supply device which may be provided as part of the street lighting, as part of the retrofit-kit or as an independent component, can comprise a control data transmitting device and/or a payload data transmitting device.
  • the control data transmitting device can be adapted to receive control data and to encode the control data by phase cutting the light post operation power.
  • the payload data transmitting device can receive payload data and can be a power-line communication master.
  • the power-line communication device of the retrofit-kit, of the light post and/or of the street lighting can be a power-line communication slave.
  • Control and/or payload data can be supplied to the light post supply device via data cables such as coaxial cables or fiber cables, for example.
  • the control data can be encoded in the operation power by phase cutting the operation power.
  • the control data can be encoded by phase cutting less than all half-waves of the operation power.
  • the operation power submitted is reduced less than when cutting all of the half-waves, thereby improving power transfer to the retrofit-kit or the lamp.
  • the phase only of positive half-waves or only of negative half-waves can be cut. Alternatively or additionally, only selected half-waves are phase cut.
  • phase cutting can be applied only to every n th half-wave or only to every n th full-wave of the operation power.
  • the letter n may represent a number between 2 and 1000, for example 2, 5, 10, 20, 50 or 100.
  • the phase of only one half-wave or of only one full-wave per minute can be cut, such that for example only every fiftieth or sixtieth wave is cut.
  • the amount of power supply is almost not reduced at all by the phase cutting, whereas sufficient data can be encoded for timely switching on or off the lamp operation power.
  • the payload data can be encoded as power-line communication data, such that no additional wiring is required between the light post supply device and the light posts.
  • Power-line communication is a communication method that uses electrical wiring to simultaneously carry both data, and alternating current (AC) electric power transmission or electric power distribution. It is also known as power-line carrier, power-line digital subscriber line (PDSL), mains communication, power-line telecommunications, or power-line networking (PLN).
  • the power-line communication can obey IEEE1901 or any other applicable standard concerning combined data and operation power transfer.
  • Payload data can be any form of user date, like for example email data, text data, music data and/or video data.
  • Wireless data communication can be WiFi, e.g. according to IEEE 802.1 1 or any other suitable wireless data communication standard.
  • wireless data communication can include Universal Mobile Telecommunications System (UMTS), Long- Term Evolution (LTE) or any other telecommunication standard like Bluetooth or even Digital Enhanced Cordless Telecommunications (Digital European Cordless Telecommunications), usually known by the acronym DECT.
  • Wired data communication can be provided e.g. via Universal Serial Bus (USB) connections.
  • Fig. 1 is a schematic illustration of an embodiment of a street lighting with several light posts retrofitted with the retrofit-kit
  • Fig. 2 is a schematic illustration of an embodiment of the retrofit-kit
  • Fig. 3 is an exemplary embodiment of the method according to the invention.
  • Fig. 4 schematically shows examples of control data encoded by phase cutting.
  • Fig. 1 is a schematic view of street lighting 1 with a plurality of light posts 2, 3 and with a light post supply device 4 for supplying the light posts 2, 3 with operation power, especially, light post operation power.
  • the exemplary embodiment of Fig. 1 shows a data device 5, which can comprise a payload data transmitting device and/or a control data transmitting device.
  • the data device 5 can be provided separate from or integrated into the supply device 4.
  • the supply device 4 is connected to each of the light posts 2, 3 in an operation power transmitting manner, for example via preinstalled operation power lines 6.
  • the operation power lines 6 are for example cables with three, five or more leads or cores.
  • the operation power line 6 connects the supply device 4 and the data device 5 to all of the light posts 2, 3 not only on a light post operation power transmitting manner, but also in a control data transmitting manner, such that each and every of the light posts 2, 3 can be supplied with control data for switching on and off lamps of the light posts 2, 3.
  • At least the light posts 2 can additionally be connected to the data device 5 via the operation power line 6 in a payload data transmitting manner.
  • All of the light posts 2, 3 of the exemplary embodiment of Fig. 1 can comprise a switch module 7.
  • light posts 2 can additionally comprise a power-line communication device 8.
  • the light posts 2 that comprise the power-line communication device 8 may each comprise a data access point that is exemplarity depicted as a wireless access point 9 with an antenna 10 connected to the wireless access point 9 in a payload data transmitting manner.
  • the switch module 7 is adapted to interconnect the supply device 4 and a lamp 1 1 of the light posts 2, 3 based on the control data. Hence, the switch module 7 can switch on and off the lamps 1 1 based on the control data received by the data device 5.
  • the power-line communication device 8 can transmit payload data between the wireless access point 9 and the data device 5.
  • the power-line communication device 8 and the wireless access point 9 can be continuously supplied with operation power, e.g. at least a part of the light post operation power, from the supply device 4.
  • the switch modules 7 can switch the lamp operation power for the lamps 1 1 , such that the lamps 1 1 can for example be switched on at dusk and switched off at dawn.
  • the switch module 7 or a combined module 12 that may comprise the switch module 7, the power-line communication device 8 and/or the wireless access point 9 may be formed such that they can be installed inside of the pylon of the light posts 2, 3, such that they are secured from theft or vandalism.
  • Fig. 2 shows an exemplary embodiment of the combined module 12 connected to the operation power line 6 and to a lamp 1 1.
  • elements which correspond in form and/or function to elements of the previous embodiment, same signs numerals are used.
  • differences with respect to the previous embodiment are discussed in the following.
  • the combined module 12 comprises the switch module 7 and the power-line communication device 8.
  • the data access point 9 is formed apart of the combined module 12.
  • the combined module 12 comprises a power/data device 13, which may be a power over Ethernet device that interconnects the power-line communication device 8 and the wireless access point 9 in an operation power and/or payload data transmitting manner, e.g. via a data cable.
  • the power/data device 13 may be an integral part of the power-line communication device 8 or may be formed separately.
  • the switch module 7, the power-line communication device 8 and the power/data device 13 can be arranged after each other in a longitudinal direction L of the combined module 12.
  • the switch module 7, the power-line communication device 8 and the wireless access point 9 can be part of the combined module 12.
  • the switch module 7, the power-line communication device 8 and the wireless access point 9 can be arranged after each other in the longitudinal direction L of the combined module 12.
  • the longitudinal direction L may correspond to a height direction of the light posts 2, 3 in case the light posts 2, 3 are retrofitted with the retro-fit kit.
  • the switch module 7, the power-line communication device 8, the wireless access point 9 and/or the power/data device 13 may separately or as the combined module 12 form the retro-fit kit 29.
  • the retro-fit kit 29 may comprise a power input 26, which may be the power input of the respective light post 2, 3 in case the respective light post, 2, 3 is quipped with the retrofit-kit 29.
  • the switch module 7 is shown with the lamp power output 27, two which a lamp 1 1 of a light post 2, 3 can be connected.
  • the wireless access point 9 is provided separate from the switch module 7, the power-line communication device 8 and/or the power/data device 13, or from the combined module 12, the retro-fit kit 29 and in particular the power/data device 13 may comprise a wireless access point power output 28.
  • Fig. 3 shows an exemplary embodiment of the method according to the invention
  • the method 20 starts with method step 21 .
  • the light post supply device begins providing operation power to the light post or to the plurality of light posts of the street lighting.
  • control and/or payload data is generated and/or transmitted in order to switch on or off the lamp of the light post or the lamps of the light posts, and/or to provide data access, in particular in a wireless manner.
  • method step 24 which follows method step 23, the lamp or lamps are switched on or off as defined in the control data.
  • method step 25 which follows method step 23, operation power is continuously provided to at least the switch module and optionally also to the power-line communication device and/or the wireless access point, such that payload data access is provided, in particular in a wireless manner.
  • Fig. 4 shows a schematic diagram with exemplary embodiments of control data encoded by phase cutting.
  • the diagram 30 is formed with an abscissa or x-coordinate 31 representing time, and an ordinate or y-coordinate 32 representing operation power, for example voltage of operation power.
  • the operation power 33 essentially has a sinusoidal form, wherein the phase of the operation power 33 is cut in order to encode control data.
  • trailing 34 or leading 35 phases of positive half waves of the operation power 33, and/or trailing 36 or leading 37 phases of negative half waves of the operation power 33 can be cut.
  • not all half- or full-waves are cut and in particular only every n th half wave or full wave is cut.
  • n may represent a number between 2 and 1000, for example 2, 5, 10, 20, 50 or 100.
  • the phase of only one half-wave or of only one full-wave per minute can be cut, such that for example only every fiftieth or sixtieth wave is cut.
  • the amount of power supply is almost not reduced by the phase cutting, whereas sufficient data can be encoded for timely switching on or off the lamp operation power.

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Abstract

The invention relates to a retrofit-kit for providing data communication, a light post supply device (4), a light post (2, 3), street lighting (1) and a method for providing access to data communication. In order to be able to use existing infrastructure and in particular street lighting for providing access to data communication, the invention provides that a switching module interconnects a lamp of one light post (2, 3) with the supply device (4) up on receipt of control data from the supply device (4) and to continuously provide operation power to electronics (8, 9) required for providing access to data communication.

Description

Retrofit-kit with switch module for light post, light post supply device, light post, street lighting and
method for providing data communication
The invention relates to a retrofit-kit for providing data communication. Furthermore, the invention relates to a light post. Further, the invention relates to a light post supply device for supplying at least one light post with operation power. Moreover, the invention relates to street lighting with a plurality of light posts and with a light post supply device for supplying the plurality of light posts with operation power. Finally, the invention relates to a method for providing access to data communication. Retrofit-kit, light post supply devices, light posts, street lighting and methods for providing access to data communication are generally known. However, electronics for providing data communication can only provide data communication access in case such electronics are supplied with operation power. Known light posts, however, do not continuously receive operation power from a respective light post supply device, such that known light post power supplies can not be used to continuously supply electronics for providing data
communication access, for example, during day time.
Therefore, it is an object of the invention to provide a retrofit-kit for providing data
communication, a light post supply device, a light post, a street lighting and a method for providing access to data communication, which can be installed easily and which provides access to data communication in a continuous manner.
This object is achieved for the retrofit-kit mentioned above in that the retrofit-kit is a retrofit-kit for retrofitting a light post with a data access point, wherein the retrofit-kit comprises a power input for receiving operation power, a lamp operation power output for outputting at least a part of the operation power as lamp operation power to a lamp of the light post, and a switch module that interconnects the power input and the lamp operation power output, wherein the switch module is connected to the power input in a control data receiving manner and is adapted to control supply of the lamp operation power to the lamp operation power output based on the control data received from the power input. For the light post supply device mentioned in the beginning, the object is achieved in that the light post supply device comprises a control data transmitting device for transmitting control data for switching on and off lamps of light posts, wherein the control data transmitting device is connected to a power output of the light post supply device in a data transmitting manner. Furthermore, the object is achieved for the above-mentioned light post in that the light post comprises the retrofit-kit according to the invention. For the street lighting mentioned above, the object is achieved in that all of the light posts comprise the retrofit-kit according to the invention, and in that the light post supply device is the light post supply device according to the invention. Finally, the object is achieved for the above-mentioned method for providing access to the data communication in that the method comprises continuously providing operation power to a light post, switching a part of the operation power output to a lamp of the light post as lamp operation power based on control data received with the operation power, continuously providing a part of the operation power as data access point operation power to a data access point, and transmitting control and payload data via a line that conducts the operation power to and from the data access point.
As operation power is continuously provided to the light posts, electronics required for providing data communication access can continuously be provided with operation power, such that data communication can be accessed independent of the operation cycle of the lamp of the light posts. Due to the switching module, lamp operation power can be switched independent of the operation power provided to the electronics required for providing data communication access based on the control data, such that the lamps can be switched on and off, as required e.g. in order to save power. As the lamp operation power and the operation power for the electronics required for providing data communication access are both derived from the operation power provided to the light post, no additional power lines are required, but preinstalled power line that provide light post operation power can be used. Furthermore, as control any payload data are transported via the preinstalled power line, no additional data cables need to be installed between the light post supply device and the light posts.
The solution according to the invention can be further improved by means of various configurations, which are advantages on their own and which can be freely combined unless otherwise defined in the following. The configurations and the advantages associated therewith are set out below.
According to a first advantageous embodiment of the retro-fit kit, the switch module can be adapted to decode control data encoded in the operation power by phase cutting the operation power. The operation power is usually AC operation power. Phase cutting operation power is an easy and robust manner for encoding control data that does not require a high quality data line. Furthermore, phase cutting does not significantly affect operation power supply.
The control data can be encoded by phase cutting less than all half-waves or less than all full-waves of the operation power. By phase cutting less than all half-waves of the operation power, the operation power submitted is reduced less than when cutting all of the half-waves, thereby improving power transfer to electronics providing data communication access, e.g. the electronics of the retrofit-kit, or to the lamp. For example, the phase only of positive half- waves or only of negative half-waves can be cut. Alternatively or additionally, only selected half-waves are phase cut. For example, phase cutting can be applied to every nth half-wave or to every nth full-wave of the operation power, only. The letter n may represent a number between 2 and 1000, for example 2, 5, 10, 20, 50 or 100. In particular, the phase of only one half-wave or of only one full-wave per minute can be cut, such that for example only every fiftieth or every sixtieth wave is cut. Hence, the amount of power supply is almost not reduced at allby the phase cutting, whereas sufficient data can be encoded for timely switching on or off the lamp operation power. In addition to data representing switch-on or switch-off commands, the control data may comprise address data assigned to switch modules or groups of switch modules, such that lamps of selected light posts or of groups of light posts can be switched on and/or off independent of other light posts.
The switch module can be connected to the power input in a switch module operation power transmitting manner. Thus, the switch module can be operated by the operation power supplied to the power input, such that no separate power input or operation power supply is required for the switch module.
The retrofit-kit may comprise a power-line communication device, e.g. a power-line communication slave that is connected to the power input in a signal transmitting manner. Hence, as power-line communication does not require additional data lines like coaxial cables or fiber cables, the data for the data access communication can be easily transported to via the operation power lines which are already interconnecting preinstalled light post supply devices and light posts.
The power-line communication device can be connected to the power input in a power-line communication device operation power receiving manner, such that no additional power input or power supply is required for the power-line communication device.
The retrofit-kit may comprise a data access point that may be a wireless access point and that can be connected to the power-line communication device in a data signal transmitting manner. The data access point may comprise an antenna and electronics for transmitting data between the antenna and the power-line communication device. The data access point can be connected to the power input in a wireless access point operation power receiving manner, such that no separate power input or operation power line is required for the data access point. For example, the power-line communication device can interconnect the power input and the data access point in a data access point operation power transmitting manner, such that even within the electronics for providing access to data communication, e.g. within the retrofit-kit, no additional power line that directly interconnects the power input and the wireless access point is required.
In order to be able to arrange the switch module, the power-line communication device, the data access point and/or an optional power/data module for interconnecting the power-line communication device and the data access point in an operation power and data transmitting manner, in a pylon of the light post, the switch module, the power-line communication device, the wireless access point and/or the optional power/data module can be arranged after each other in a longitudinal direction. The longitudinal direction may correspond to a height direction of the light post.
The light post may comprise a power input for receiving operation power, e.g. light post operation power, a lamp operation power output for outputting at least a part of the operation power as lamp operation power to a lamp of the light post, and a switch module that interconnects the power input and the lamp power operation output, wherein the switch module is connected to the power input in a control data receiving manner and is adapted to control supply of the lamp operation power to the lamp operation power output, i.e. to the lamp, based on the control data received from the power input. Thus, the light post does not need to be equipped with additional power or data ports such that the already pre-installed or present power input can be used for supplying the electronics for providing access to data communication of the light post and the lamp.
The switch module can be adapted to decode control data encoded in the operation power by phase cutting the operation power. The operation power is usually AC operation power. Phase cutting operation power is an easy and robust manner for encoding control data that does not require a high quality data line. Furthermore, phase cutting does not significantly affect operation power supply.
The control data can be encoded by phase cutting less than all half-waves or less than all full-waves of the operation power. By phase cutting less than all half-waves of the operation power, the operation power submitted is reduced less than when cutting all of the half-waves, thereby improving power transfer to the light post. For example, the phase only of positive half-waves or only of negative half-waves can be cut. Alternatively or additionally, only selected half-waves are phase cut. For example, phase cutting can be applied only to every nth half-wave or only to every nth full-wave of the operation power. The letter n may represent a number between 2 and 1000, for example 2, 5, 10, 20, 50 or 100. In particular, the phase of only one half-wave or of only one full-wave per minute can be cut, such that for example only every fiftieth or sixtieth wave is cut. Hence, the amount of power supply is almost not reduced by the phase cutting, whereas sufficient data can be encoded for timely switching on or off the lamp operation power. The switch module can be connected to the power input of the light post in a switch module operation power transmitting manner. Thus, the switch module can be operated by the light post operation power supplied to the power input, such that no separate power input or operation power supply is required for the switch module.
The light post may comprise a power-line communication device, e.g. a power-line communication slave that is connected to the power input in a signal transmitting manner. Hence, as power-line communication does not require additional data lines like coaxial cables or fiber cables, the data for the data access communication can be easily transported to via the operation power lines which are already interconnecting preinstalled light post supply devices and light posts. The power-line communication device can be connected to the power input in a power-line communication device operation power receiving manner, such that no additional power input or power supply is required for the power-line communication device.
The light post may comprise a data access point that is connected to the power-line communication device in a data signal transmitting manner. The data access point may be a wireless access point. The wireless access point may comprise an antenna and electronics for transmitting data between the antenna and the power-line communication device. The data access point can be connected to the power input in a data access point operation power receiving manner, such that no separate power input or operation power line is required for the data access point. For example, the power-line communication device can interconnect the power input and the data access point in a data access point operation power transmitting manner, such that no additional power line that directly interconnects the power input and the data access point is required.
In order to be able to arrange the switch module, the power-line communication device, the data access point and/or an optional power/data module for interconnecting the power-line communication device and the data access point in an operation power and data transmitting manner, in a pylon of the light post, the switch module, the power-line communication device, the wireless access point and/or the optional power/data module can be arranged after each other in a longitudinal direction. The longitudinal direction may correspond to a height direction of the light post.
The street lighting with the plurality of light posts according to the invention and with the light post supply device according to the invention for supplying the plurality of light posts with operation power is provided. Thus, all of the light posts may comprise a power input for receiving operation power, e.g. light post operation power, a lamp operation power output for outputting at least a part of the operation power as lamp operation power to a lamp of the light post and a switch module that interconnects the power input and the lamp power operation output, wherein the switch module is connected to the power input in a control data receiving manner and is adapted to control supply of the lamp operation power to the lamp operation power output, i.e. to the lamp, based on the control data received from the power input. Thus, the light posts do not need to be equipped with additional power or data ports such that already pre-installed or present power inputs can be used for supplying the electronics of the light posts and the lamp. The switch module can be adapted to decode control data encoded in the operation power by phase cutting the operation power. The operation power is usually AC operation power. Phase cutting operation power is an easy and robust manner for encoding control data that does not require a high quality data line. Furthermore, phase cutting does not significantly affect operation power supply. The control data can be encoded by phase cutting less than all half-waves or less than all full-waves of the operation power. By phase cutting less than all half-waves of the operation power, the operation power submitted is reduced less than when cutting all of the half-waves, thereby improving power transfer to the light post. For example, the phase only of positive half-waves or only of negative half-waves can be cut. Alternatively or additionally, only selected half-waves are phase cut. For example, phase cutting can be applied only to every nth half-wave or only to every nth full-wave of the operation power. The letter n may represent a number between 2 and 1000, for example 2, 5, 10, 20, 50 or 100. In particular, the phase of only one half-wave or of only one full-wave per minute can be cut, such that for example every fiftieth or sixtieth wave is cut. Hence, the amount of power supply is almost not reduced at all by the phase cutting, whereas sufficient data can be encoded for timely switching on or off the lamp operation power.
The switch module can be connected to the power input of a respective light post in a switch module operation power transmitting manner. Thus, the switch module can be operated by the light post operation power supplied to the power input, such that no separate power input or operation power supply is required for the switch module. The street lighting and in particular at least selected (i.e. less than all) of the light posts may comprise a power-line communication device, e.g. a power-line communication slave, that is connected to the power input in a signal transmitting manner. Hence, as power-line communication does not require additional data lines like coaxial cables or fiber cables, the data for the data access communication can be easily transported to the light posts via the operation power lines which are already interconnecting preinstalled light post supply devices and light posts.
The power-line communication device can be connected to the power input in a power-line communication device operation power receiving manner, such that no additional power input or power supply is required for the power-line communication device.
The selected light posts may comprise a data access point that may be a wireless access point and can connected to the power-line communication device in a data signal transmitting manner. The wireless access point may comprise an antenna and electronics for transmitting data between the antenna and the power-line communication device. The data access point can be connected to the power input in a data access point operation power receiving manner, such that no separate power input or operation power line is required for the data access point.
For example, the power-line communication device can interconnect the power input and the data access point in a data access point operation power transmitting manner, such that even within the light posts, no additional power line that directly interconnects the power input and the data access point is required.
For example, in case the maximum range of transmission of the wireless access point exceeds twice the distance between neighboring light posts, less than all light posts can comprise a power-line communication device that is connected to the power input in a data signal transmitting manner. For example, every second, every third, every fourth, every fifth, up to every tenth or up to every twentieth light post can be equipped with a power-line communication device. In case the data received and sent by the power-line communication device is to be provided in a wireless manner by the light post, selected or all of the light posts that comprise the power-line communication device can each comprise a wireless access point that is connected to the power-line communication device at least in a data signal transmitting manner or, additionally, in a wireless access point operation power receiving manner. For example, the power-line communication device or a power/data device can interconnect the power input and the wireless access point in a wireless access point operation power and optionally, also in a payload data transmitting manner. The light post supply device, which may be provided as part of the street lighting, as part of the retrofit-kit or as an independent component, can comprise a control data transmitting device and/or a payload data transmitting device. The control data transmitting device can be adapted to receive control data and to encode the control data by phase cutting the light post operation power. The payload data transmitting device can receive payload data and can be a power-line communication master. The power-line communication device of the retrofit-kit, of the light post and/or of the street lighting can be a power-line communication slave.
Control and/or payload data can be supplied to the light post supply device via data cables such as coaxial cables or fiber cables, for example. According to the method, the control data can be encoded in the operation power by phase cutting the operation power. For example, the control data can be encoded by phase cutting less than all half-waves of the operation power. By phase cutting less than all half-waves of the operation power, the operation power submitted is reduced less than when cutting all of the half-waves, thereby improving power transfer to the retrofit-kit or the lamp. For example, the phase only of positive half-waves or only of negative half-waves can be cut. Alternatively or additionally, only selected half-waves are phase cut. For example, phase cutting can be applied only to every nth half-wave or only to every nth full-wave of the operation power. The letter n may represent a number between 2 and 1000, for example 2, 5, 10, 20, 50 or 100. In particular, the phase of only one half-wave or of only one full-wave per minute can be cut, such that for example only every fiftieth or sixtieth wave is cut. Hence, the amount of power supply is almost not reduced at all by the phase cutting, whereas sufficient data can be encoded for timely switching on or off the lamp operation power.
The payload data can be encoded as power-line communication data, such that no additional wiring is required between the light post supply device and the light posts. Power-line communication (PLC) is a communication method that uses electrical wiring to simultaneously carry both data, and alternating current (AC) electric power transmission or electric power distribution. It is also known as power-line carrier, power-line digital subscriber line (PDSL), mains communication, power-line telecommunications, or power-line networking (PLN). For example, the power-line communication can obey IEEE1901 or any other applicable standard concerning combined data and operation power transfer.
Payload data can be any form of user date, like for example email data, text data, music data and/or video data.
Wireless data communication can be WiFi, e.g. according to IEEE 802.1 1 or any other suitable wireless data communication standard. Alternatively or additionally, wireless data communication can include Universal Mobile Telecommunications System (UMTS), Long- Term Evolution (LTE) or any other telecommunication standard like Bluetooth or even Digital Enhanced Cordless Telecommunications (Digital European Cordless Telecommunications), usually known by the acronym DECT. Wired data communication can be provided e.g. via Universal Serial Bus (USB) connections.
In the following, the invention is further explained in an exemplary manner with reference to exemplary embodiments and the drawings. Unless explicitly specified to the contrary, the various features of the exemplary embodiments can be combined independently or omitted, as already set out in the individual advantageous configurations. In the drawings: Fig. 1 is a schematic illustration of an embodiment of a street lighting with several light posts retrofitted with the retrofit-kit,
Fig. 2 is a schematic illustration of an embodiment of the retrofit-kit,
Fig. 3 is an exemplary embodiment of the method according to the invention, and
Fig. 4 schematically shows examples of control data encoded by phase cutting. Fig. 1 is a schematic view of street lighting 1 with a plurality of light posts 2, 3 and with a light post supply device 4 for supplying the light posts 2, 3 with operation power, especially, light post operation power. Furthermore, the exemplary embodiment of Fig. 1 shows a data device 5, which can comprise a payload data transmitting device and/or a control data transmitting device. The data device 5 can be provided separate from or integrated into the supply device 4.
The supply device 4 is connected to each of the light posts 2, 3 in an operation power transmitting manner, for example via preinstalled operation power lines 6. The operation power lines 6 are for example cables with three, five or more leads or cores.
The operation power line 6 connects the supply device 4 and the data device 5 to all of the light posts 2, 3 not only on a light post operation power transmitting manner, but also in a control data transmitting manner, such that each and every of the light posts 2, 3 can be supplied with control data for switching on and off lamps of the light posts 2, 3. At least the light posts 2 can additionally be connected to the data device 5 via the operation power line 6 in a payload data transmitting manner. All of the light posts 2, 3 of the exemplary embodiment of Fig. 1 can comprise a switch module 7. Furthermore, light posts 2 can additionally comprise a power-line communication device 8. The light posts 2 that comprise the power-line communication device 8 may each comprise a data access point that is exemplarity depicted as a wireless access point 9 with an antenna 10 connected to the wireless access point 9 in a payload data transmitting manner.
The switch module 7 is adapted to interconnect the supply device 4 and a lamp 1 1 of the light posts 2, 3 based on the control data. Hence, the switch module 7 can switch on and off the lamps 1 1 based on the control data received by the data device 5.
The power-line communication device 8 can transmit payload data between the wireless access point 9 and the data device 5. The power-line communication device 8 and the wireless access point 9 can be continuously supplied with operation power, e.g. at least a part of the light post operation power, from the supply device 4. The switch modules 7 can switch the lamp operation power for the lamps 1 1 , such that the lamps 1 1 can for example be switched on at dusk and switched off at dawn.
Due to switching the lamps 1 1 on and off with the switching modules 7 being part of the light posts 2, 3 enables switching on and off lamps 1 1 of selected light posts 2, 3 only, for example of a single light post 2, 3, of a group or of groups of light posts 2, 3, or of all of the light posts 2, 3.
The switch module 7 or a combined module 12 that may comprise the switch module 7, the power-line communication device 8 and/or the wireless access point 9 may be formed such that they can be installed inside of the pylon of the light posts 2, 3, such that they are secured from theft or vandalism.
Fig. 2 shows an exemplary embodiment of the combined module 12 connected to the operation power line 6 and to a lamp 1 1. For elements, which correspond in form and/or function to elements of the previous embodiment, same signs numerals are used. For the sake of brevity, only the differences with respect to the previous embodiment are discussed in the following.
The combined module 12 comprises the switch module 7 and the power-line communication device 8. The data access point 9 is formed apart of the combined module 12. In order to supply the wireless access point 9 with power and with data access, the combined module 12 comprises a power/data device 13, which may be a power over Ethernet device that interconnects the power-line communication device 8 and the wireless access point 9 in an operation power and/or payload data transmitting manner, e.g. via a data cable. The power/data device 13 may be an integral part of the power-line communication device 8 or may be formed separately. In order to be able to form the combined module 12 such that it can be installed inside of the pylon of the light post 2, the switch module 7, the power-line communication device 8 and the power/data device 13 can be arranged after each other in a longitudinal direction L of the combined module 12. Alternatively, the switch module 7, the power-line communication device 8 and the wireless access point 9 can be part of the combined module 12. The switch module 7, the power-line communication device 8 and the wireless access point 9 can be arranged after each other in the longitudinal direction L of the combined module 12. The longitudinal direction L may correspond to a height direction of the light posts 2, 3 in case the light posts 2, 3 are retrofitted with the retro-fit kit. The switch module 7, the power-line communication device 8, the wireless access point 9 and/or the power/data device 13 may separately or as the combined module 12 form the retro-fit kit 29.
The retro-fit kit 29 may comprise a power input 26, which may be the power input of the respective light post 2, 3 in case the respective light post, 2, 3 is quipped with the retrofit-kit 29. Furthermore, the switch module 7 is shown with the lamp power output 27, two which a lamp 1 1 of a light post 2, 3 can be connected. Furthermore and for the example as shown in figure 2, according to which the wireless access point 9 is provided separate from the switch module 7, the power-line communication device 8 and/or the power/data device 13, or from the combined module 12, the retro-fit kit 29 and in particular the power/data device 13 may comprise a wireless access point power output 28.
Fig. 3 shows an exemplary embodiment of the method according to the invention
schematically as a flow chart.
The method 20 according to the invention starts with method step 21 . For example, in method step 21 , the light post supply device begins providing operation power to the light post or to the plurality of light posts of the street lighting.
In the following method step 22, operation power is continuously provided to the light post or to the light posts, even if street lighting is not required. In the following method step 23, control and/or payload data is generated and/or transmitted in order to switch on or off the lamp of the light post or the lamps of the light posts, and/or to provide data access, in particular in a wireless manner.
In method step 24, which follows method step 23, the lamp or lamps are switched on or off as defined in the control data. In method step 25, which follows method step 23, operation power is continuously provided to at least the switch module and optionally also to the power-line communication device and/or the wireless access point, such that payload data access is provided, in particular in a wireless manner.
Fig. 4 shows a schematic diagram with exemplary embodiments of control data encoded by phase cutting. The diagram 30 is formed with an abscissa or x-coordinate 31 representing time, and an ordinate or y-coordinate 32 representing operation power, for example voltage of operation power. The operation power 33 essentially has a sinusoidal form, wherein the phase of the operation power 33 is cut in order to encode control data. For example, trailing 34 or leading 35 phases of positive half waves of the operation power 33, and/or trailing 36 or leading 37 phases of negative half waves of the operation power 33 can be cut. In particular, not all half- or full-waves are cut and in particular only every nth half wave or full wave is cut. The letter n may represent a number between 2 and 1000, for example 2, 5, 10, 20, 50 or 100. In particular, the phase of only one half-wave or of only one full-wave per minute can be cut, such that for example only every fiftieth or sixtieth wave is cut. Hence, the amount of power supply is almost not reduced by the phase cutting, whereas sufficient data can be encoded for timely switching on or off the lamp operation power.

Claims

Claims
Retrofit-kit (29) for providing data communication, for retrofitting a light post (2, 3) with a data access point (9), wherein the retrofit-kit (29) comprises a power input (26) for receiving operation power, a lamp operation power output (27) for outputting at least a part of the operation power (33) as lamp operation power to a lamp (1 1 ) of the light post (2, 3) and a switch module (1 1 ) that interconnects the power input (26) and the lamp operation power output (27), wherein the switch module (7) is connected to the power input (26) in a control data receiving manner and is adapted to control supply of the lamp operation power to the lamp operation power output (27) based on the control data received from the power input (26).
Retrofit-kit (29) according to claim 1 , wherein the switch module (7) is adapted to decode control data encoded in the operation power (33) by phase cutting the operation power (33).
Retrofit-kit (29) according to claim 2, wherein the control data is encoded by phase cutting less than all half-waves of the operation power (33).
Retrofit-kit (29) according to any of claims 1 to 3, wherein the switch module (1 1 ) is connected to the power input (26) in a switch module operation power transmitting manner.
Retrofit-kit (29) according to any of claims 1 to 4, wherein the retrofit-kit (29) comprises a power-line communication device (8) that is connected to the power input (26) in a data signal transmitting manner.
Retrofit-kit (29) according to claim 5, wherein the power-line communication device (8) is connected to the power input (26) in a power-line communication device operation power receiving manner.
Retrofit-kit (29) according to claim 5 or 6, wherein the retrofit-kit (29) comprises a data access point (9) that is connected to the power-line communication device (8) in a data signal transmitting manner.
Retrofit-kit (29) according to claim 7, wherein the data access point (9) is connected to the power input (26) in a data access point operation power receiving manner.
Light post supply device (4), wherein the light post supply device (4) comprises a control data transmitting device for transmitting control data for switching on and off lamps (1 1 ) of light posts (2, 3), wherein the control data transmitting device is connected to a power output of the light post supply device (4) in a data transmitting manner.
10. Light post (2, 3), wherein the light post (2, 3) comprises the retrofit-kit (29) of any of claims 1 to 9. 1 1. Street lighting (1 ) with a plurality of light posts (2, 3) and with a light post supply
device (4) for supplying the plurality of light posts (2, 3) with operation power (33), wherein all of the light posts (2,3) are light posts according to claim 10, and wherein the light post supply device (4) is the light post supply device (4) of claim 9.
12. Street lighting (1 ) according to claim 1 1 , wherein less than all light posts (2) comprise a power-line communication device (8) that is connected to the power input (26) in a data signal transmitting manner.
13. Method (20) for providing access to data communication, wherein the method (20) comprises continuously providing operation power (22) to a light post (2), switching the part of the operation power (33) output to a lamp (1 1 ) of the light post (2) as lamp operation power based on control data received with the operation power (33), continuously providing a part of the operation power (33) as data access point operation power to a data access point (25), and transmitting control and payload data via a line (6) that conducts the operation power (33) to and from the data access point. 14. Method (20) according to claim 13, wherein the control data is encoded in the
operation power (33) by phase cutting the operation power (33).
15. Method (20) according to claim 14, wherein the control data is encoded by phase cutting less than all half-waves of the operation power (33).
PCT/EP2017/056131 2017-03-15 2017-03-15 Retrofit-kit with switch module for light post, light post supply device, light post, street lighting and method for providing data communication WO2018166592A1 (en)

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EP17716467.0A EP3597011A1 (en) 2017-03-15 2017-03-15 Retrofit-kit with switch module for light post, light post supply device, light post, street lighting and method for providing data communication

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