A control device includes: a control signal transmitter transmitting a signal to a controlled device; a control signal receiver receiving a signal from the controlled device; a control signal generator generating a control signal of 2 bytes or more in one transmission cycle, in which an address is assigned to each byte, is ON/OFF switchable, and includes a main signal address and a collation signal address; and a control signal controller that, when the main and collation signal addresses are the same address, turns the collation signal address ON when the main signal address is ON and turns the collation signal address OFF when the main signal address is OFF, and when the main and collation signal addresses are inverted, turns the collation signal address OFF when the main signal address is ON and turns the collation signal address ON when the main signal address is OFF.

Method for the operation and expansion of a network of lights Described herein is method for the operation and the expansion of a network of lights, each light in the network including a control module which is assigned to a group, each control module being in communication with a group controller as well as control modules in the same group. The network can be expanded by installing new lights with their associated control modules (19), and each new control module scans its environment and transmits environmental information to a central server (20) where the environmental information is analysed and the new control modules are allocated into groups (21). After allocation to a group in which control modules may be moved from one group to another or a new group is formed, the new control modules are available for normal operation. This process is repeated for each new light and associated control module.

The subject disclosure relates to solutions for testing lighting systems and in particular, for verifying lighting system operability in the event of a power failure. A process of the disclosed technology can include steps for receiving an interrupt command, toggling an interrupt relay in response to the interrupt command, and measuring one or more lighting characteristics of the lighting array to determine if the second power supply can power the lighting array. Systems and machine-readable media are also provided.

Example embodiments relate to systems for checking a luminaire status and methods thereof. One embodiment includes a method for checking a status of a luminaire using a mobile terminal in a vicinity of the luminaire. The mobile terminal includes a sensing means, a memory, and a communication means. The method includes obtaining, by the mobile terminal, an identifier of the luminaire. The method also includes determining, based on the obtained identifier of the luminaire, a measure of the status of the luminaire to be acquired. Additionally, the method includes acquiring, by the sensing means of the mobile terminal, the measure of the luminaire status. Further, the method includes storing, in the memory of the mobile terminal, data about the acquired measure of the luminaire status. The data is associated to the identifier of the luminaire.

A lighting device for a motor vehicle including a processing module which is configured to receive and process signals of a data bus of the motor vehicle and send a data signal. The lighting device also includes an LED unit configured to emit light, when operational, with an adjustable brightness and a predefined color location. The LED unit has a microcontroller and a plurality of LEDs, and the microcontroller and the plurality of LEDs are surrounded by a housing of the LED unit. Furthermore, the processing module is configured to convert the data signal, which contains control information for the LED unit, into a pulse width-modulated signal of the current supplied to the individual LEDs and to verify whether the pulse width-modulated signal contains information corresponding to the control information for the LED unit.

Method for the operation and the expansion of a network of lights, each light in the network including a control module which is assigned to a group, each control module being in communication with a group controller as well as control modules in the same group. The network can be expanded by installing (19) new lights with their associated control modules, and each new control module scans (20) its environment and transmits environmental information to a central server where the environmental information is analysed and the new control modules are allocated (21) into groups. After allocation to a group in which control modules may be moved from one group to another or a new group is formed, the new control modules are available for normal operation. This process is repeated for each new light and associated control module.

A device and a method for driving the supply of power to a plurality of light sources that is made up of a first group of light sources comprising at least one light source, which first group of light sources is connected in series with at least one second group of light sources comprising at least one light source. The device comprises a supply circuit to which the plurality of light sources is connected as a load. According to the inventive measures, it becomes possible to short at least one of the groups of light sources without causing high intensity transient current peaks in the light sources that are not shorted.

A system for controlling LED lightbox power supplies, comprises the lightbox supplies disposed inside a lightbox and correspondingly connected with LED light bars one by one. All the lightbox power supplies are connected in series with one another via a 485 communication bus. Meanwhile, a wireless communication device connected in series with the lightbox power supplies is further mounted inside the lightbox. A gateway device for wirelessly connecting with the wireless communication device and uploading data acquired to a cloud server, is arranged outside the lightbox. A sensor set connected in a wired manner with the wireless communication device is arranged on an outer wall of the lightbox.

A control device includes: a control signal transmitter transmitting a signal to a controlled device; a control signal receiver receiving a signal from the controlled device; a control signal generator generating a control signal of 2 bytes or more in one transmission cycle, in which an address is assigned to each byte, is ON/OFF switchable, and includes a main signal address and a collation signal address; and a control signal controller that, when the main and collation signal addresses are the same address, turns the collation signal address ON when the main signal address is ON and turns the collation signal address OFF when the main signal address is OFF, and when the main and collation signal addresses are inverted, turns the collation signal address OFF when the main signal address is ON and turns the collation signal address ON when the main signal address is OFF.

A Short Circuit Detection module capable of detecting a fail related with the Short circuit condition in one or more LEDs contained in a series connection string comply with the failure mode (One out-All out) and can send a single failure signal to a body control module (BCM). The Short Circuit Detection module also includes a lamp driver circuit adapted to detect a change in LED current or voltage that is indicative of a LED light source failure and thereafter output the failure signal to the BCM.