Embodiments of the present invention are directed to security systems for securing an item of merchandise from theft or unauthorized removal. For example, the security system may include a sensor configured to be coupled to the item of merchandise and a base configured to removably support the sensor and the item of merchandise thereon. The sensor includes at least one electrical contact and an inductive coil, and the base includes at least one electrical contact and driving electronics for the inductive coil. The sensor is configured to transfer power inductively to the item of merchandise when the at least one electrical contact of the sensor contacts the at least one electrical contact of the base to thereby allow the driving electronics to energize the inductive coil, wherein the sensor is configured to cease transferring power to the item of merchandise when the sensor is lifted off of the base.

Embodiments of the present invention are directed to systems, devices, and methods for displaying and securing articles of merchandise. In one example, a merchandise security system includes a plurality of security devices, wherein each of the security devices includes a sensor configured to be attached to an article of merchandise. The system also includes at least one controller configured to communicate with each of the articles of merchandise in order to obtain data from the articles of merchandise. The controller and/or each of the security devices is configured to configured to generate a security signal in response to removal of the sensor from the article of merchandise.

Described herein are methods for determining, based on actual crank conditions, an ability of a battery connected to an electric starter motor, to start an internal combustion engine, wherein the battery is a single monobloc or a plurality of monoblocs that are electrically connected in series or parallel. The method may include: receiving battery temperature data, representing a temperature of the battery at a time of cranking the internal combustion engine; receiving voltage data monitored from the battery, determining an instantaneous minimum voltage of the battery during the time of cranking the internal combustion engine; and determining a capability of the battery to crank the internal combustion engine based on the battery temperature data and the instantaneous minimum voltage of the battery.

The system may be configured to perform operations including measuring a temperature and a voltage of a battery at various times producing data points, wherein each data point comprises the temperature and voltage of the battery and a respective time that the temperature and voltage was measured; assigning each data point to a respective cell in a matrix stored on a, wherein the matrix comprises a first axis comprising voltage ranges and a second axis comprising temperature ranges, wherein each cell is associated with a voltage range and a temperature range, wherein the voltage and temperature of each data point is within the voltage range and temperature range, respectively, of the respective cell; and/or generating a first value in a counter comprised in each cell reflecting a total number of data points assigned to the cell, such that the first value in each cell is stored in the memory.

Methods and systems that selectively controls whether a battery is electronically connected to or disconnected from operational circuitry of an electronic device are described. The switching circuitry electronically connects the battery with operational circuitry in response to external electric power being available to the operational circuitry, thereby allowing the battery to be available as a backup source of electrical power for the operational circuitry when external electric power is lost. Methods and systems also electronically disconnect the battery from the operational circuitry in response to a loss of external electric power to the operational circuitry. As a result, undesirable battery drainage is avoided if the device is left in storage or is not being used for an extended period of time.

A battery monitor circuit, systems and methods are disclosed. The battery monitor circuit may have a voltage sensor, a temperature sensor, a processor for receiving a monitored voltage signal from the voltage sensor, for receiving a monitored temperature signal from the temperature sensor, and for generating voltage data and temperature data based on the monitored voltage signal and the monitored temperature signal, an antenna, and a transmitter. The battery monitor circuit may be configured for wirelessly communicating the voltage data and the temperature data to a remote device, via the antenna. In an exemplary embodiment, the battery monitor circuit is located internal to the battery and wired electrically to the battery.

A method for estimating a SOC of a battery electrically coupled to at least one of a load or a power source includes detecting, by a voltage sensor, voltages of the battery. The method further includes determining, by a processor, an average voltage of the battery by averaging the detected voltages of the battery over a predetermined period of time. The method further includes determining, by the processor, a present operating state of the battery based on at least one of the detected voltages of the battery. The method further includes determining, by the processor, a present SOC of the battery based on the present operating state of the battery and the average voltage of the battery. The method further includes transmitting, by the processor, the present SOC of the battery to an output device for outputting the present SOC of the battery.

In present solar panel theft protection system, a solar panel stops generating power after it is detached from its intended system or if the solar radiation level goes below certain min level. The accordance with the present disclosure solar panel & its connected system identify each other by encrypted codes. The solar panel & its connected system communicate with each other through same power cables which are coming from solar panel (i.e. positive & negative). No extra communication cabling is required.

Embodiments of the present invention are directed to systems, devices, and methods for displaying and securing articles of merchandise. In one example, a merchandise security system includes a plurality of security devices, wherein each of the security devices includes a sensor configured to be attached to an article of merchandise. The system also includes at least one controller configured to communicate with each of the articles of merchandise in order to obtain data from the articles of merchandise. The controller and/or each of the security devices is configured to configured to generate a security signal in response to removal of the sensor from the article of merchandise.

A security device 10 for an electrically powered device includes a remote tracking circuit 35 for mounting in a power plug or supply cable, a control means 38 for mounting in the power plug 20 or supply cable 14, a power shut-down circuit 16 for immobilising a tool 12 and positioning within the tool casing; and a power cable 14 connected between the control means 38 and power shut down circuit 16, the power cable 14 being adapted to supply power to the tool 12, and the power shut down circuit 14 being controlled by the control means 38, the power shut down circuit 14 being configured to automatically shut down the power supply to the tool until the control means 38 is re-connected, if the cable 14 is severed.