A technology for delivering an audible notification from a process control system in a control room environment, where the delivery is made by one or more first speakers having a first coverage for audible notifications and one or more second speakers having a second coverage for audible notifications. A determination if the location of an operator is covered by the first coverage is made. The audible notification is delivered by the one or more first speakers if it is determined that the location of the operator is covered by the first coverage. The audible notification is delivered by the one or more second speakers if it is determined that the location of the operator is not covered by the first coverage.

A technology for delivering an audible notification from a process control system in a control room environment, where the delivery is made by one or more first speakers having a first coverage for audible notifications and one or more second speakers having a second coverage for audible notifications. A determination if the location of an operator is covered by the first coverage is made. The audible notification is delivered by the one or more first speakers if it is determined that the location of the operator is covered by the first coverage. The audible notification is delivered by the one or more second speakers if it is determined that the location of the operator is not covered by the first coverage.

A low-power wireless communication device is in a sleep or standby mode of operation for extended periods of time, periodically becoming fully operational and issuing a check in message to a base station, thereby inhibiting the ability of the base station to assist in the locating of device, and remotely updating the settings or operational programming of the device much of the time. Upon receipt of a command to locate a misplaced low-power wireless device or to update the device, a base station queues an associated command in a task queue. Upon receipt of a check-in message from an associated low-power wireless device, indicating it is in a fully powered and communicative state of operation, the base station searches its task queue for applicable commands relative to the specific wireless device and executes them via communication with the now fully-operational wireless device.

A method and a device for alarming with a terminal, and a storage medium are provided. According to an example of the method, upon acquiring current parameter information of the terminal, it is possible to determine whether the parameter information satisfies a preset condition or not. When the preset condition is satisfied, alarm information may be output.

A battery-shaped wireless device includes a housing having an exterior shape of a standardized battery, a wireless module disposed in the housing and configured to generate a wireless signal, and a control circuit configured to cause the wireless module to generate the wireless signal. The battery-shaped wireless device can fit in a space designed for a standardized battery.

A piece of luggage comprising a device including a primary circuit board in a base case that can provides near field communication (NFC) functionality or other primary functionality, wherein the device further includes a selectively installable and removable secondary circuit board that provides the device with secondary functionality that is different from the primary functionality including at least one of lighting, position locating, GPS, sound, video or image capture, RFID, wherein the secondary circuit board includes a secondary connector that mates with a primary connector of the primary circuit board when the secondary circuit board is installed. The base case includes a recess that receives the secondary circuit board, and the primary connector is located in the recess. A battery can be installed in the recess with the secondary circuit board.

A piece of luggage comprising a device including a primary circuit board in a base case that can provides near field communication (NFC) functionality or other primary functionality, wherein the device further includes a selectively installable and removable secondary circuit board that provides the device with secondary functionality that is different from the primary functionality including at least one of lighting, position locating, GPS, sound, video or image capture, RFID, wherein the secondary circuit board includes a secondary connector that mates with a primary connector of the primary circuit board when the secondary circuit board is installed. The base case includes a recess that receives the secondary circuit board, and the primary connector is located in the recess. A battery can be installed in the recess with the secondary circuit board. In some embodiments, a battery and circuit board are individually connected and disconnected from the base case.