Patent attributes
Improved fixed receiver devices including both transmit and receive circuitry and operating on battery power are disclosed. An example transmitter/receiver location device includes a network interface to enable transmission and receipt of messages via a first communication medium and transmission and receipt of messages via a second communication medium. The example device includes a battery to provide power to the device, the battery to have a battery level and to be chargeable. The example device includes a memory to store instructions and data. The example device includes a processor to at least: process a beacon message received via the network interface; generate an information message for a location server based on location information from the beacon message and status information based on the battery level for the device; and adjust an operating state of the device based on the battery level.