An emergency lighting and power system comprises a rechargeable battery, an LED driving circuit, and a charging and discharging control circuit. The emergency lighting and power system is intended to automatically supply illumination or power or both in an event of failure of normal power supply. The LED driving circuit is configured to convert a terminal voltage from the rechargeable battery into an AC voltage to operate a luminaire when a line voltage from AC mains is unavailable. The charging and discharging control circuit comprises at least two relay switches configured to sense a loss of normal power supply, to switch between normal power and an emergency power to operate the luminaire in proper situations, and to meet regulatory requirements without operational ambiguity and safety issues.

A light-emitting diode (LED) luminaire comprising an emergency-operated portion is used to replace a luminaire operated only with alternate-current (AC) mains. The emergency-operated portion comprises a rechargeable battery with a terminal voltage, a self-diagnostic circuit, and a transceiver circuit. The LED luminaire can auto-switch from the AC mains to an emergency power or the other way around according to availability of the AC mains and whether a rechargeable battery test is initiated. The self-diagnostic circuit comprises a clock and is configured to initiate self-diagnostic tests and to auto-evaluate battery performance according to test schedules with the terminal voltage examined and test results stored. The LED luminaire further comprises a remote controller configured to initiate remote control signals with phase-shift keying (PSK) signals transmitted. The transceiver circuit is configured to demodulate such PSK signals and send commands to the self-diagnostic circuit to request responses accordingly.

A light-emitting diode (LED) luminaire comprising an emergency-operated portion is used to replace a luminaire operated only in a normal mode with alternate-current (AC) mains. The emergency-operated portion comprises a rechargeable battery with a terminal voltage, a self-diagnostic circuit, and a transceiver circuit. The LED luminaire can auto-switch from the normal mode to an emergency mode or the other way around according to availability of the AC mains and whether a rechargeable battery test is initiated. The self-diagnostic circuit comprises timers and is configured to provide sequences and to auto-evaluate battery performance according to the sequences with the terminal voltage examined and test results stored. The LED luminaire further comprises a remote controller. When the remote control signals are initiated by the remote controller with phase-shift keying (PSK) signals transmitted, the transceiver circuit can demodulate such PSK signals and subsequently send commands to the self-diagnostic circuit to request responses accordingly.

A testing device for emergency lighting equipment including a main control unit and at least one control module, where each of the at least one control module is used to check operational readiness of an emergency lighting device, and the main control unit and the at least one control module are all connected to a network to form a control system for a smart phone or a building security monitoring system to perform a remote inspection operation on at least one aforementioned emergency lighting device via the network.

An emergency light system connected to a battery unit comprises a LED driver to be powered by a switched power source, a light fixture to provide light when powered, and a link driver. The link driver comprises driver connectors powered by the LED driver, battery connectors powered by the battery unit, powering connectors connected to the light fixture, and an internal transfer device adapted to switch power source powering the power connectors from the driver connectors to the battery connectors upon detection of a power outage. Also described is the link driver to retrofit a light fixture connected to a battery unit into an emergency light system.

An emergency LED lighting system maintains power to an LED lighting source based on measured voltages and currents provided to the LED lighting source; rolls back or decreases power provided to an LED lighting source over time in order to increase the amount of time the battery can power the LED lighting source; executes a soft start procedure, such that the power provided to the LED lighting source is gradually ramped up during activation of the LED lighting sources; identifies a type of battery coupled to the emergency LED lighting system; cycles the emergency LED lighting system between charging mode and standby mode to reduce power consumption over a window of time; detects AC power or an absence of AC power; and/or uses a status LED to communicate information about the emergency LED lighting system with a remote device.

In embodiments of the present invention improved capabilities are described for providing intelligent power control in response to an external power interruption, causing a processor is in an electrical fixture to interrogate an external power control switch to gain an understanding of the switch's state, where prior to the external power interruption the electrical fixture may be powered by external power and where external power may be connected and disconnected by a user of the switch. In the event that the switch's state is determined to be such that it would normally pass power to the electrical fixture, the processor causes the electrical fixture to operate using a backup power supply. In the event that the switch's state is determined to be such that it would normally not pass power to the electrical fixture, the processor causes the electrical fixture to act as if the user of the switch has intentionally removed power. In response to a return of external power, powering the electrical fixture is then through external power where the user of the switch switches external power.

An emergency dimming apparatus including a control input pass-through configured to receive a control signal, a control output configured to output the control signal to a driver, and a controller. The controller includes an electronic processor and a memory. The controller is configured to monitor a line voltage, determine if the line voltage has crossed a threshold, disconnect the control input pass-through when the line voltage has crossed the threshold, output an output voltage when the line voltage has crossed the threshold, and output an emergency control signal, via the control output, when the line voltage has crossed the threshold.

An emergency lighting system including a mains power supply, an auxiliary power supply, a brown-out circuit, a plurality of lights including a first group of lights and a second group of lights, and a controller. The brown-out circuit is configured to extract input voltage information related to a voltage level of the mains power supply, and scale down an input voltage of the mains power supply to a DC voltage proportional to the voltage level. The controller is configured to control the plurality of lights. Wherein, power is provided from the mains power supply to the first group of lights and the second group of lights when the DC voltage is above a threshold, and power is provided from the auxiliary power supply to the first group of lights and not the second group of lights when the DC voltage is below the threshold.

The present disclosure is directed to utility poles that house a vertical stack of batteries to store energy. The utility pole in one configuration is a small cell pole. In one arrangement, the small cell pole stores sufficient energy to operate for several day during a power failure. In a further arrangement, a plurality of battery storage poles operate as a source and/or sink for a local electricity grid to balance the operation of the grid.