• 专利附录
  • 专利说明
  • 权利要求
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  • 同族专利
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  • 法律状态
  • 优先权
    • 专利摘要:
    A lighting controller (101) for controlling a luminaire comprises one or more sensors (102-104) for producing sensor data, a wireless transmitter (105), and a control system (106) communicatively connected to the one or more sensors and the wireless transmitter. The control system is configured to produce a control signal for controlling one or more light sources in accordance with the sensor data. The control system is configured to control, in response to a triggering action directed to the lighting controller, the wireless transmitter to transmit one or more diagnostic messages each having a predetermined datagram format and containing information about the sensor data. The diagnostic messages having the predetermined datagram format remove a need for a data transfer session where the lighting controller is requested to transmit data items indicative of conditions of the one or more sensors so that data item-specific requests are sent to the lighting controller.
    公开号:FI20205631A1
    申请号:FI20205631
    申请日:2020-06-16
    公开日:2021-10-29
    发明作者:Jukka Ahola
    申请人:Helvar Oy Ab；
    IPC主号:
    专利说明:

    A lighting controller and a method for testing a lighting controller Field of the disclosure The disclosure relates generally to illuminating engineering. More particularly, the disclosure relates to a lighting controller for controlling one or more luminaires. Furthermore, the disclosure relates to a method and to a data processor program for testing a lighting controller. Furthermore, the disclosure relates to a luminaire. Background Luminaire manufacturers assemble luminaires in their production facilities. Each luminaire comprises one or more light sources, such as e.g. light emitting diodes “LED”, and a driver configured to supply electric energy to the one or more light sources from the mains power. In advanced lighting systems, a luminaire may further comprise a lighting controller that comprises a motion sensor such as a passive infrared “PIR” sensor so that light will be provided only when there is someone nearby. Furthermore, the lighting controller may comprise a light sensor that can be used to save energy. If there is abundant ambient light, the light emitted by the luminaire will be dimmed to a lower level while still enough lighting is provided, and when there is a lack of ambient light, the luminaire will provide light output at a higher intensity. The lighting controller may also comprise a wireless communication module to allow for wireless control and/or exchange of information. It is also < possible that an advanced lighting system comprises a lighting controller that is a N separate device with respect to luminaires and comprises sensors, e.g. a PIR and S a light sensor, and is configured to control one or more luminaires over corded or - wireless data transfer links.
    T = 25 If a light sensor, a motion sensor, and/or a wireless communication module are 3 faulty or installed improperly, they will not function as expected. Therefore, it is S important to test the operation of these devices before a lighting controller, or a N luminaire comprising the lighting controller, is shipped to a customer and installed. The operation of sensors and wireless communication modules of a lighting controller can be tested by establishing a data transfer session between the wireless communication module and a device, e.g. a personal computer, of a person carrying out the testing. The testing can be carried out by interrogating each lighting controller to be tested to find out if the lighting controller can respond to wireless communication. In addition, the lighting controllers to be tested are requested to send current readings of their sensors to confirm that the sensors are functional. Especially in cases where each luminaire comprises a lighting controller, it can be a tedious task to list and interrogate each of the lighting controllers to be tested. Furthermore, the testing requires establishing a point-to-point connection with each lighting controller to request appropriate data. In these cases, there can be typically only one lighting controller connection at a time, and therefore testing a large number of lighting controllers may take a long time. Summary The following presents a simplified summary in order to provide a basic understanding of some aspects of various invention embodiments. The summary is not an extensive overview of the invention. It is neither intended to identify key or critical elements of the invention nor to delineate the scope of the invention. The following summary merely presents some concepts in a simplified form as a prelude to a more detailed description of exemplifying embodiments of the invention. In accordance with the invention, there is provided a new a lighting controller for controlling one or more luminaires. The lighting controller can be for example a part of a luminaire, or the lighting controller can be a separate device with respect to N luminaires and configured to control one or more luminaires over wireless or corded S data transfer links. © I 25 Alighting controller according to the invention comprises: a & - one or more sensors, e.g. a motion sensor and a light sensor, configured to S produce sensor data,
    N - a wireless transmitter, and
    - a control system communicatively connected to the one or more sensors and to the wireless transmitter, the control system being configured to produce a control signal for controlling one or more light sources in accordance with the sensor data.
    The above-mentioned control system is configured to control, in response to a triggering action directed to the lighting controller, the wireless transmitter to transmit one or more diagnostic messages each having a predetermined datagram format and containing information about at least the sensor data. The triggering action can be for example powering up the lighting controller or a reception of a command at the lighting controller from an external device. The diagnostic messages having the predetermined datagram format remove a need for a data transfer session where the lighting controller is requested to transmit data items indicative of conditions of the one or more sensors so that data item -specific requests are sent to the lighting controller.
    In accordance with the invention, there is provided also a new luminaire that comprises: - one or more light sources, - adriver configured to supply electric energy to the one or more light sources from the mains power, and - a lighting controller according to the invention and configured to supply a < control signal to the driver to control light output of the one or more light N sources.
    3 © In accordance with the invention, there is provided also a new method for testing a z lighting controller. The method comprises controlling, in response to a triggering = 25 action directed to the lighting controller, a wireless transmitter of the lighting O controller to transmit one or more diagnostic messages each having a N predetermined datagram format and containing information about at least sensor N data produced by one or more sensors of the lighting controller.
    In accordance with the invention, there is provided also a new data processor program for testing a lighting controller. The data processor program comprises instructions for controlling a programmable data processor system to control, in response to a triggering action directed to the lighting controller, a wireless transmitter of the lighting controller to transmit one or more diagnostic messages each having a predetermined datagram format and containing information about at least sensor data produced by one or more sensors of the lighting controller. The above-mentioned data processor program can be called a computer program provided that a computer is understood in a broad sense so that e.g. a programmable controller or another programmable device is deemed to be a computer. In accordance with the invention, there is provided also a new data processor program product. The data processor program product comprises a non-volatile data processor readable medium encoded with a data processor program according to the invention. Exemplifying and non-limiting embodiments are described in accompanied dependent claims. Various exemplifying and non-limiting embodiments both as to constructions and to methods of operation, together with additional objects and advantages thereof, will be best understood from the following description of specific exemplifying and non- S limiting embodiments when read in conjunction with the accompanying drawings.
    O N The verbs “to comprise” and “to include” are used in this document as open 2 limitations that neither exclude nor require the existence of also un-recited features. z The features recited in dependent claims are mutually freely combinable unless = 25 otherwise explicitly stated. Furthermore, it is to be understood that the use of “a” or 3 “an”, i.e. a singular form, throughout this document does not exclude a plurality.
    O N Brief description of the figures
    Exemplifying and non-limiting embodiments and their advantages are explained in greater detail below with reference to the accompanying drawings, in which: figure 1 illustrates a luminaire that comprises a lighting controller according to an exemplifying and non-limiting embodiment, 5 figure 2 illustrates a lighting controller according to an exemplifying and non-limiting embodiment, figure 3 illustrates an exemplifying datagram format of a diagnostic message transmitted by a lighting controller according to an exemplifying and non-limiting embodiment, and figure 4 shows a flowchart of a method according to an exemplifying and non-limiting embodiment for testing a lighting controller.
    Description of exemplifying and non-limiting embodiments The specific examples provided in the description below should not be construed as limiting the scope and/or the applicability of the accompanied claims.
    Lists and groups of examples provided in the description below are not exhaustive unless otherwise explicitly stated.
    Figure 1 illustrates a luminaire 107 that comprises a lighting controller 101 according to an exemplifying and non-limiting embodiment.
    The luminaire 107 comprises light sources 108, 109, and 110 that can be for example light emitting diodes “LED”. The N 20 luminaire 107 comprises a driver 111 configured to supply electric energy to the light > sources 108-110 from an electric power grid 113. The lighting controller 101 is 2 configured to supply a control signal to the driver 111 to control light output of the > light sources 108-110. The lighting controller 101 comprises sensors 102, 103, and E 104 configured to produce sensor data.
    The sensors may comprise e.g. a presence & 25 sensor, a light sensor, a sound sensor, and/or some other suitable sensors for S controlling the luminaire 107. The presence sensor may comprise for example a N passive infrared “PIR” sensor for detecting presence through motion, a thermal camera, a low-resolution optical camera, and/or a gigahertz-radar.
    The lighting controller 101 comprises a control system 106 that is communicatively connected to the sensors 102-104 and to a wireless transmitter 105 of the lighting controller
    101. Advantageously, the lighting controller 101 further comprises a wireless receiver. The control system 106 is configured to produce the control signal for controlling the light sources 108-110 in accordance with the sensor data produced by the sensors 102-104. The wireless transmitter 105 and the wireless receiver can be configured to support for example the Bluetooth Low Energy “BLE” network technology, the Zigbee network technology, and/or the Thread network technology. Figure 1 shows also luminaires 127 and 128 each of which can be like the luminaire
    107. The luminaires 107, 127, and 128 can be for example autonomous luminaires, — which can turn on and off independently based on information from the sensors installed in the luminaires. In addition, the luminaires can be configured to form a data transfer mesh, e.g. a BLE mesh, in which they share information on their current state, i.e. they send adverts when they turn on/off and/or adjust their light level. Each luminaire can also be configured to learn to follow the actions of other luminaires in the data transfer mesh. Each luminaire can be configured to transmit advertisements to other devices in the data transfer mesh, where advertisements contain an identifier “ID” of the lighting controller of the luminaire. Based on these advertisements, the luminaires can be detected by a wireless device 112 and a point-to-point control connection can be formed to a given luminaire for changing operational parameters of the luminaire, such as changing a light output level, assigning the luminaire into a group, or adjusting time-out values for dimming down the light when no motion is detected. The above-mentioned advertisements can be o transmitted e.g. at regular intervals, e.g. every 200 milliseconds. The wireless device S 112 can be e.g. a tablet computer, a mobile phone, or a laptop computer configured S 25 to support the data transfer technology used by the luminaires. In addition, each 2 luminaire can be configured to transmit status messages to the data transfer mesh E formed by the luminaires every time the luminaire changes its status, for example S when the luminaire turns on or off or adjust its light level. This information is received D by the other luminaires and they can be configured to use the information to modify S 30 their own behavior. For example, if the luminaire 127 observes that shortly before its own presence sensor indicates presence, the luminaire 107 has sent a status indication indicating that the luminaire 107 has turned on, the luminaire 127 learns to turn on already when it receives the status indication from the luminaire 107, before the presence sensor of the luminaire 127 has observed any presence. The data transfer mesh can be equipped with a gateway, not shown in figure 1, for connection to a cloud and for remote controlling and programming of the lighting system.
    In order to verify that the sensors 102-104 are functioning properly, electronics of the luminaire 107 works as desired, and wires are properly connected, the control system 106 of the lighting controller 101 is configured to control, in response to a triggering action directed to the lighting controller 101, the wireless transmitter 105 to transmit one or more diagnostic messages each of which has a predetermined datagram format and contains information about at least the sensor data produced by the sensors 102-104. Furthermore, a received signal strength indicator "RSSI” can be determined based on the diagnostic messages in order to estimate the quality of wireless data transfer from the lighting controller 101 to a receiving device.
    Each diagnostic message may contain e.g. the sensor data as such i.e. the raw data produced by the sensors 102-104. Furthermore, the diagnostic message may contain e.g. an identifier of the lighting controller 101. This identifier can act as an identifier of the luminaire 107, too. The diagnostic message contains information that enables the wireless device 112 to verify that the sensors 102-104 are functioning properly, electronics of the luminaire 107 works as desired, and/or wires are properly connected. Thus, it suffices that the wireless device 112 can receive and read the diagnostic messages. Thus, the wireless device 112 does not need to o establish a data transfer connection with the lighting controller 101. Advantageously, S all diagnostic messages have the same predetermined datagram format that differs S 25 from that of non-diagnostic messages sent by the lighting controller 101 to enable 2 the wireless device 112 to establish a data transfer connection with the lighting E controller 101. An exemplifying datagram format of a diagnostic message is S illustrated in figure 3. In the exemplifying case shown in figure 3, the diagnostic D message is a BLE advertising protocol data unit "PDU”, where the payload field is O 30 arranged to contain an identifier of the lighting controller and/or an identifier of the luminaire, type information of the sensors, and readings of the sensors. Other details of the datagram format shown in figure 3 can be found e.g. in the Bluetooth Low
    Energy specification document v 5.1, Vol. 6, Part B, Sec. 2.1. The above-mentioned triggering action causing the transmission of the one or more diagnostic messages can be for example powering up the lighting controller 101 or a reception of a command at the lighting controller 101 from an external device, e.g. the wireless device 112. The diagnostic messages having the predetermined datagram format remove a need for a data transfer session where the lighting controller 101 is requested to transmit data items related to the sensors 102-104 so that data item - specific requests are sent to the lighting controller 101. In a lighting controller according to an exemplifying and non-limiting embodiment, the control system 106 is configured to control the wireless transmitter 105 to repeatedly transmit the diagnostic messages for a predetermined time after the above-mentioned triggering action. The predetermined time can be for example in the range from 10 to 100 seconds, advantageously 30 seconds, and the sending rate of the diagnostic messages can be for example in the range from 2-10 diagnostic messages per second, advantageously 5 diagnostic messages per second. In a lighting controller according to an exemplifying and non-limiting embodiment, the control system 106 is configured to control the wireless transmitter 105 to transmit a predetermined number of diagnostic messages after the triggering action. The predetermined number can be for example in the range from 100 to 1000, advantageously 150. The limited transmission time and/or the limited number of diagnostic messages sent after the triggering action is advantageous in situations in which there are not only lighting controllers, or luminaires, which are to be tested o but also other lighting controllers, or luminaires, which e.g. have been tested earlier. S If all lighting controllers transmitted diagnostic messages for an unlimited time after S 25 a triggering action, the diagnostic messages sent by earlier tested lighting 2 controllers would complicate and/or disturb the testing of the lighting controllers, or E luminaires, which are currently being tested.
    & The above-mentioned diagnostic messages can be received and analyzed by the O wireless device 112. Since the diagnostic messages are broadcast, no point-to-point N 30 connections between the lighting controllers of the luminaires and the wireless device 112 are needed and therefore diagnostic messages from a large number of luminaires can be received within a short period of time. An application running in the wireless device 112 checks whether sensor values are within predefined ranges. Furthermore, the application running in the wireless device 112 can check the quality of the wireless data transfer from the lighting controllers of the luminaires to the wireless device 112. This way badly wired luminaires and other fault cases can be noticed. The wireless device 112 can be configured to establish e.g. a point-to- point connection to a luminaire whose lighting controller does not fulfill quality requirements and to send, using the point-to-point connection, to the luminaire a command which makes the luminaire to e.g. blink its light, thereby making it straightforward to locate the luminaire needing repair among all luminaires being checked. In addition to testing at a luminaire manufacturing site, the above- described testing procedure can also be used, for example, at a location where the luminaires have been installed. This way accidentally disconnected wiring or broken sensors or wireless transceivers can be quickly identified. In cases where the lighting controllers of the luminaires are configured to broadcast the diagnostic messages in response to powering on, it suffices to cause a power cut to the luminaires to make the lighting controllers of the luminaires to broadcast the diagnostic messages. It is also possible that sending of the diagnostic messages is initiated by a command sent by a control device, such as e.g. a mobile phone, a laptop, or some other wireless device, or a lighting control system that may comprise a data transfer mesh of the luminaires and a gateway for forwarding the command. The above-mentioned control device can be configured to control a single lighting controller at time, whereas a command from the date transfer mesh can involve for example a group of luminaires. Advantageously, in these exemplifying cases, the N duration of sending and the sending rate of the diagnostic messages, or the number > 25 of the diagnostic messages to be sent, can be selected.
    O 2 Figure 2 illustrates a lighting controller 201 according to an exemplifying and non- E limiting embodiment. In this exemplifying case, the lighting controller 201 is a S separate device with respect to luminaires and configured to control the luminaires D over wireless data transfer links. It is also possible that the lighting controller 201 is S 30 configured to control the luminaires over a corded data transfer system that uses e.g. the Digital Addressable Lighting Interface "DALI technology. In principle, the DALI technology is applicable in conjunction with wireless data transfer technologies, too. Figure 2 shows two of the luminaires that are denoted with references 207 and 217. The lighting controller 201 comprises sensors 202, 203, and 204 which may comprise e.g. a presence sensor, a light sensor, a sound sensor, and/or some other sensors suitable for controlling the luminaires 207 and 217. The lighting controller 201 comprises a control system 206 that is communicatively connected to the sensors 202-204 and to a wireless transmitter 205 of the lighting controller 201. Advantageously, the lighting controller 201 further comprises a wireless receiver. The control system 206 is configured to produce a control signal for controlling the luminaires 207 and 217 in accordance with sensor data produced by the sensors 202-204. The control system 206 is configured to control the wireless transmitter 205 to transmit the above-mentioned control signal to the luminaires 207 and 217. The wireless transmitter 205 and the wireless receiver can be configured to support for example the Bluetooth Low Energy “BLE” network technology, the Zigbee network technology, and/or the Thread network technology. In order to check that the sensors 202-204 are functioning properly, electronics of the lighting controller 201 works as desired, and wires are properly connected, the control system 206 is configured to control, in response to a triggering action directed to the lighting controller 201, the wireless transmitter 205 to transmit one or more diagnostic messages each of which has a predetermined datagram format and contains information about at least the sensor data produced by the sensors 202-
    204. Furthermore, a received signal strength indicator “RSSI” can be determined N based on the diagnostic messages to estimate the guality of wireless data transfer > from the lighting controller 201 to a receiving wireless device 212, e.g. a mobile 2 25 phone. The above-mentioned triggering action can be for example powering up the > lighting controller 201, or a reception of a command at the lighting controller 201 E from an external device e.g. the wireless device 212.
    O O The control system 106 shown in figure 1 as well as the control system 206 shown O in figure 2 can be implemented with one or more data processors each of which can be a programmable data processor provided with appropriate software, a dedicated hardware data processor such as for example an application specific integrated circuit “ASIC”, or a configurable hardware data processor such as for example a field programmable gate array “FPGA”. Furthermore, the control system 106 shown in figure 1 as well as the control system 206 shown in figure 2 may comprise one or more memory devices such as e.g. a random-access memory “RAM” circuit.
    Figure 4 shows a flowchart of a method according to an exemplifying and non- limiting embodiment for testing a lighting controller. The method comprises controlling 401, in response to a triggering action directed to the lighting controller, a wireless transmitter of the lighting controller to transmit one or more diagnostic messages each having a predetermined datagram format and containing information about at least sensor data produced by one or more sensors of the lighting controller. In a method according to an exemplifying and non-limiting embodiment, the triggering action is powering up the lighting controller. In a method according to an exemplifying and non-limiting embodiment, the triggering action is a reception of a command at the lighting controller from outside the lighting controller. In a method according to an exemplifying and non-limiting embodiment, each of the one or more diagnostic messages contains the sensor data. In a method according to an exemplifying and non-limiting embodiment, each of the one or more diagnostic messages contains an identifier of the lighting controller N and/or an identifier of a luminaire comprising the lighting controller.
    N O In a method according to an exemplifying and non-limiting embodiment, the one or O more sensors comprise at least one of the following: a presence sensor, a light E sensor, and/or a sound sensor. & 25 A method according to an exemplifying and non-limiting embodiment comprises S controlling the wireless transmitter to transmit a control signal to one or more S luminaires. In this exemplifying case, the lighting controller can be a separate device with respect to the one or more luminaires and configured to control the one or more luminaires over wireless data transfer links.
    In a method according to an exemplifying and non-limiting embodiment, the one or more diagnostic messages are transmitted in accordance with one of the following: the Bluetooth Low Energy “BLE” network technology, the Zigbee network technology, or the Thread network technology.
    A method according to an exemplifying and non-limiting embodiment comprises repeatedly transmitting the diagnostic messages for a predetermined time after the triggering action.
    A method according to an exemplifying and non-limiting embodiment comprises transmitting a predetermined number of the diagnostic messages after the triggering action. A data processor program according to an exemplifying and non-limiting embodiment comprises data processor executable instructions for controlling a programmable data processor system to carry out actions related to a method according to any of the above-described exemplifying embodiments. A data processor program according to an exemplifying and non-limiting embodiment comprises software modules for testing a lighting controller. The software modules comprise data processor executable instructions for controlling a programmable data processor system to control, in response to a triggering action directed to the lighting controller, a wireless transmitter of the lighting controller to transmit one or more diagnostic messages each having a predetermined datagram S format and containing information about at least sensor data produced by one or O more sensors of the lighting controller. S The above-mentioned software modules can be e.g. subroutines or functions - implemented with a programming language suitable for the programmable data E 25 processor system. O A data processor program product according to an exemplifying and non-limiting
    O S embodiment comprises a data processor readable medium encoded with a data N processor program according to an embodiment of invention.
    A signal according to an exemplifying and non-limiting embodiment is encoded to carry information defining a data processor program according to an embodiment of invention. The specific examples provided in the description given above should not be construed as limiting the scope and/or the applicability of the appended claims. Lists and groups of examples provided in the description given above are not exhaustive unless otherwise explicitly stated.OQAON
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    权利要求:
    Claims (15)
    [1] 1. Alighting controller (101, 201) comprising: - one or more sensors (102-104, 202-204) configured to produce sensor data, - a wireless transmitter (105, 205), and - a control system (106, 206) communicatively connected to the one or more sensors and to the wireless transmitter, wherein the control system is configured to produce a control signal for controlling one or more light sources in accordance with the sensor data, characterized in that the control system is configured to control, in response to a triggering action directed to the lighting controller, the wireless transmitter to transmit one or more diagnostic messages each having a predetermined datagram format and containing information about at least the sensor data.
    [2] 2. A lighting controller according to claim 1, wherein the control system is configured to control the wireless transmitter to transmit the one or more diagnostic messages in response to powering up the lighting controller.
    [3] 3. A lighting controller according to claim 1 or 2, wherein the control system is configured to control the wireless transmitter to transmit the one or more diagnostic messages in response to a command received at the lighting controller from outside the lighting controller.
    O
    QA N 20
    [4] 4 Alighting controller according to any one of claims 1-3, wherein each of the S one or more diagnostic messages contains the sensor data.
    O I
    [5] 5. A lighting controller according to any one of claims 1-4, wherein each of the Ao * one or more diagnostic messages contains an identifier of the lighting controller. 0
    O 2
    [6] 6. A lighting controller according to any one of claims 1-5, wherein the one or
    QA S 25 more sensors comprise at least one of the following: a presence sensor, a light sensor, and a sound sensor.
    [7] 7. A lighting controller according to any one of claims 1-6, wherein the control system is configured to control the wireless transmitter to transmit the control signal to one or more luminaires.
    [8] 8. A lighting controller according to any one of claims 1-7, wherein the wireless transmitter is configured to support at least one of the following: Bluetooth Low Energy network technology, Zigbee network technology, and Thread network technology.
    [9] 9. A lighting controller according to any one of claims 1-8, wherein the control system is configured to control the wireless transmitter to repeatedly transmit the diagnostic messages for a predetermined time after the triggering action.
    [10] 10. A lighting controller according to any one of claims 1-8, wherein the control system is configured to control the wireless transmitter to transmit a predetermined number of the diagnostic messages after the triggering action.
    [11] 11. Aluminaire (107) comprising: - one or more light sources (108-110), - a driver (111) configured to supply electric energy to the one or more light sources from mains power, and - a lighting controller (101) configured to supply a control signal to the driver to control light output of the one or more light sources,
    [12] S N 20 characterized in that the lighting controller is a lighting controller according to any S one of claims 1-10.
    [13] O I 12. A luminaire system according to claim 11, wherein each of the one or more a > diagnostic messages transmitted by the lighting controller contains an identifier of 2 the lighting controller. 5 S 25 13. A method for testing a lighting controller, characterized in that the method comprises controlling (401), in response to a triggering action directed to the lighting controller, a wireless transmitter of the lighting controller to transmit one or more diagnostic messages each having a predetermined datagram format and containing information about at least sensor data produced by one or more sensors of the lighting controller.
    [14] 14. Adata processor program for testing a lighting controller, characterized in that the data processor program comprises data processor executable instructions for controlling a programmable data processor system to control, in response to a triggering action directed to the lighting controller, a wireless transmitter of the lighting controller to transmit one or more diagnostic messages each having a predetermined datagram format and containing information about at least sensor data produced by one or more sensors of the lighting controller.
    [15] 15. A data processor program product comprising a non-transitory processor readable medium encoded with a data processor program according to claim 14.
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