A street light management method includes: receiving from a server at predetermined intervals and updating at least one of information about a node that is at least one street light, information about a gateway that communicates with the node and the server, and information about a communication channel between the node and the gateway; displaying the node in a corresponding position on a digital map displayed on a screen using position information included in the information about the node and displaying the gateway in a corresponding position on the digital map using position information included in the information about the gateway; and displaying corresponding information in at least one of information display windows on the screen according to the received information or a user operation.

A method and system for automatically determining a utility light malfunction is provided. The method includes receiving, from a first hardware device, luminance data specifying current luminance levels associated with utility light apparatuses. Location data specifying a geographical location for each utility light apparatus is retrieved and the luminance data and location data are analyzed with respect to historical luminance data and historical location data associated with the utility light apparatuses. The analysis results in determining that a group of utility light apparatuses include first current luminance levels differing from previous luminance levels of the group. A list and associated map specifying a group of geographical locations associated with the group is generated. A control signal enabling control of a vehicle is transmitted to the vehicle and associated video data is retrieved via the vehicle during travel in accordance with the map.

The invention provides a processor and a method for determining the state of a first network device in a lighting network based upon information associated with the first network device and a second network device adapted to pass messages to the first network device. The first network device is associated with a first count value, and the second network device is associated with a second count value. When the first count value is within a predetermined range relative to the second count value, the first network device is determined to have been inactive. Each respective count value is based on the change or difference in an incremental property of the respective network device since a last reset of the count value.

An LED driving apparatus group in which first and second LED groups are connected in series is provided. The apparatus includes a voltage input unit that receives an input voltage from a vehicle power device and a current controller that generates a current with a predetermined level by adjusting the received input voltage and provides the current to an input terminal of the first LED group. A first feedback path feeds back a voltage applied to a first node, which is connected to an output terminal of the first LED group, to an input terminal of the current controller. A first switching unit is disposed on the first feedback path and is switched on or off based on a control signal. A second switching unit is disposed between an output terminal of the second LED group and ground and is switched on or off based on the control signal.

A buck converter supplies a drive current to a light source and is feedback-controlled so that the drive current comes close to a target current. An open-circuit detection circuit compares a potential difference between and input voltage and an output voltage of the buck converter with a threshold voltage.

An airport lighting system includes one or more lighting elements, a transient protection apparatus, and one or more electrical control cabinets. The transient protection apparatus is coupled to the one or more lighting elements. One or more electrical control cabinets are coupled to the transient protection apparatus. Each of the control cabinets produces one or more of control and power signals that are effective to operate the one or more lighting elements. The transient protection apparatus is configured to provide protection for one or more of the electrical control cabinets and the one or more lighting elements from electrical surges.

A wireless access device is configured to be electrically connected to a lighting device that communicates with a server. The wireless access device includes a connecting base. The connecting base includes an electrical connection interface, which is configured to be directly and electrically connected to the lighting device and to receive electric power from the lighting device. The wireless access device is configured to communicate with the server through the electrical connection interface and to receive the electric power from the lighting device through the electrical connection interface.

An outdoor lighting apparatus (1) for fixed installation is described, suitable to be connected to an electric mains to be supplied with mains supply voltage. The lighting apparatus (1) comprises at least one light source (6), a driving circuit (30) of the at least one light source (6). The outdoor lighting apparatus further comprises a control and communication circuit (20), suitable to control the driving circuit (30), comprising a processing and control unit (21), a memory unit (25), and a long-range communication interface (23) suitable to allow the control and communication circuit (20) communicating with a remote control device (60). The outdoor lighting apparatus is further equipped with a short range or very short range communication interface (24) suitable to interface with a communication and/or configuration mobile terminal to allow said mobile terminal accessing the memory unit (25) in writing and/or reading. The short or very short range communication interface (24) facilitates the configuration, maintenance and/or replacement of the electric apparatus (1).

A vehicle computer is disclosed that includes one or more processors and memory that stores instructions executable by the one or more processors. The computer may be programmed to: receive a light input from an array of photovoltaic cells carried by a vehicle; based on the light input, determine that an infrastructure lamp is in a degraded state or a failure state; and transmit a report to a backend system based on the determination.

A system and method provide fail-safe operation of a lighting system. A lighting level detector is used to obtain a baseline lighting level for a low-intensity light. If the detector measures less than the baseline level when an occupancy sensor determines the space is unoccupied, a high-intensity light is energized and an indication is provided to a user that the low-intensity light has failed. A method provides daylighting operation of a lighting system. An occupancy sensor can have Wi-Fi functionality to enable remote configuration of the sensor. A line voltage occupancy sensor can include an interface with low voltage devices. An occupancy sensor can include an integral interface to enable an external control system to override the sensor's normal logic under emergency conditions. An occupancy sensor can include an active temperature compensation feature. An occupancy sensor can also incorporate an automatically adjustable coverage area.