A device tag including a housing that includes a first connector structure constructed and arranged to engage with a battery operated device and a second connector structure constructed and arranged to slidingly engage with a battery such that the device tag is provided between the battery operated device and the battery. The device tag also includes an electrical connector carried by the housing and constructed and arranged to provide an electrical connection between the battery operated device and the battery. The device tag further includes an electronic device carried by the housing and constructed and arranged to transmit electrical signals.

A communication device has a storage, a GPS receiver, a communicator, and a controller. The storage stores a planned travel route. The GPS receiver receives GPS signals. The communicator communicates with the outside. The controller sets an area including the planned travel route as a target area, and when an out-of-area state has begun in which the location of the communication device falls outside the target area, transmits information indicating the location of the communication device as observed when the out-of-area state began to a previously registered transmission destination.

A battery arrangement (100) and a method for operating a battery arrangement are provided. The battery arrangement comprises an identity reader (115) and a battery system (120). The identity reader is configured to obtain an identity from an identifier (110) fastened to an immobile object (150). The battery system is distinct from the immobile object. The battery arrangement is configured to disable at least part of the battery system in response to the identity reader being unable to obtain the identity. The method comprises monitoring a sensor for obtaining an identity from an identifier fastened to an immobile object and disabling at least part of the battery system in response to failure to obtain the identity. Accordingly, an anti-theft solution for a battery arrangement is provided.

The invention relates to a complex proximity safety and warning system. The invention provides a safety system comprising a generator that generates a magnetic field that establishes a boundary, where the generator is capable of receiving radio frequency signals. Also provided is a radio frequency device that sends radio frequency signals, the radio frequency device being capable of sensing the magnetic field and generating a radio frequency response.

The subject matter of this specification can be embodied in, among other things, a mobile device accessory includes a housing defining an attachment surface that is configured to engage a mobile device, a wearable component configured to be worn by a user of the mobile device, a separation detector configured to detect separation of the wearable component relative to the housing, and provide a signal when the wearable component becomes separated from the housing, and an alarm device configured to activate in response to the signal. Alternatively, the mobile device accessory may be a standalone device not designed to be attached to a mobile device.

The subject matter of this specification can be embodied in, among other things, a mobile device accessory that includes a first housing defining a first attachment surface that is configured to adhere to another surface, a user input mechanism configured to activate in response to input by a user of the mobile device, and circuitry configured to activate in response to activation of the user input mechanism, wherein activation of the circuitry (i) causes an audible alarm to be emitted by the mobile device, or (ii) causes a software application to be executed on a mobile device, or (iii) both.

A device and method for monitoring a first device proximity to a second device is disclosed. The first device is for example a smartphone and the second device is for example a wearable device. Proximity between both devices is monitored in conjunction with an electronic calendar so as to trigger an alert in case proximity between both devices is going to be lost while an event of the calendar is imminent.

A power distribution box and method of communicating via the power distribution box are provided. A power input in the power distribution box is coupled to a power output to provide power to external devices. A gateway device supported by the housing of the power distribution box includes a wireless network module for communicating with power tools and a cellular module for communicating via a cellular network with a power tool monitoring system. The gateway may be removable from the power distribution box. A translation controller in the gateway enables communication between the wireless network module and the external network using the cellular module. The translation controller translates messages between the power tools and external network. The messages may include location data or operational data associated with the power tool.

A method enables at least one active operating state of a hand-held power tool with at least one infrastructure unit as a function of whether protective equipment is carried and/or worn by an operator of the hand-held power tool. A mobile functional unit is integrated into the hand-held power tool. The mobile functional unit is configured to control the at least one active operating state of the hand-held power tool by (i) transmitting at least one ID of a first protective equipment element of a first piece of protective equipment to a first infrastructure unit, the first infrastructure unit receiving the at least one ID of the first protective equipment element of the first piece of protective equipment, and (ii) transmitting at least a first signal from the first infrastructure unit to the mobile functional unit.