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.

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 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 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 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 that is configured to track an asset is disclosed. In one aspect, the device includes a radio module that generates proximity data that indicates a distance between the computing device and the device. The device includes a processor that compares the distance between the computing device and the device to a distance threshold. The processor determines that the distance between the computing device and the device satisfies the distance threshold. The processor arms the device. The device includes a motion sensor that generates motion data. The processor compares the motion data to a motion threshold. The processor determines that the motion data satisfies the motion threshold. The processor activates an alarm state.

Systems and methods for preventing the unauthorized removal of mobile processor-based devices from designated areas (e.g., inside of a shopping area). The system may utilize a beacon technology based on a low energy protocol to prevent unauthorized removal of the devices. An anti-theft beacon system which includes an RF beacon transmitter may be positioned proximate an exit of a designated area. Mobile processor-based devices detect beacon signals from the anti-theft beacon system. Responsive to such detection, a device determines that it has been removed from the designated area. The device may then perform one or more anti-theft actions, including operating as a beacon once removed from the designated area. An auxiliary power source may power a beacon of the mobile processor-based device when the mobile processor-based device has been removed from the designated area so that the beacon may still broadcast signals even when a primary power source is disabled.

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.

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.

A method of monitoring separation between an electronic device and an electronic base that includes a chipset and a wireless communication module. An electronic/electrical link is established between the electronic device and the electronic base. If the electronic/electrical link is severed between the electronic device and the electronic base, then the chipset generates a separation notification. The chipset then sends both the separation notification with the wireless communication module to contact information stored on the chipset. The contact information is for an authorized user profile of the electronic device.