A PTT smart watch system using a biometric human identification (HID) method based on electrocardiogram which provides a PTT service through interworking with a server including an electrocardiogram database, the PTT smart watch system comprising: a plurality of user terminals enabling biometric HID and PTT communication; and a server configured to receive electrocardiogram data and a PTT message from a first user terminal of the plurality of user terminals, transmit the electrocardiogram data to an electrocardiogram database, and transmit the PTT message to at least one second user terminal of the plurality of user terminals which enters a corresponding PTT channel when biometric HID is identified from the electrocardiogram database. A biometric HID method based on electrocardiogram enhances security in a PTT communication system, and allows a convenient use. In addition, through interworking with a health care application in a smartphone using electrocardiogram data, a user's health may be managed.

A programmable signal generator and radio controller for providing dispatch paging tone out frequencies to first responders and other selected areas. The signal generator is capable of performing tone-outs to various first responders and being cross compatible with prior and future evolutionary systems. The signal generator uses plain-text console interface and plain-text tone-out parameter definitions allowing programming without special software, apps, or Internet connectivity. The signal generator is capable of controlling operational functions of connected radio transceiver equipment including initiating and terminating RF transmission, selecting radio channel or frequency, and monitoring operational status of the transceiver. The signal generator is also capable of interactive communication with external third-party digital radio dispatch console systems via Ethernet network and TCP/IP protocol via an isolated network interoperability interface that implements a simple Application Program Interface (API).

A system for playback of messages. Context appropriate messages for an environment may be played back. Messages may be user behavior interactive and subject to user behavior initiated message playback conditions. User generated environment events may be automatically analyzed and user behavior interactive messages may be automatically coordinated. An automated themed message playback apparatus may have a self-contained housing within which a stored themed message, an in situ user generated environment event sensor, and an automated themed message playback device are housed. User generated environment events may be automatically sensed in situ.

Embodiments of the present invention relate to a wireless emergency bell and a method for controlling a wireless emergency bell installed in a school and a school zone, the method comprising the steps of: receiving an input signal generated by pressing a provided button by a reporter when an emergency situation occurs; generating an emergency bell signal, repeatedly transmitting the generated emergency bell signal to at least one pager and a receiver during a predetermined configuration time, and outputting a prestored alarm sound to the outside through a provided speaker; generating an emergency bell voice signal and transmitting the generated emergency bell voice signal to the at least one pager and the receiver; generating an emergency bell voice transmission completion signal indicating that the emergency bell voice signal has been completely transmitted, and transmitting the generated emergency bell voice transmission completion signal to the at least one pager and the receiver; converting an operation of the wireless emergency bell into a reception mode in which data can be automatically received from at least one pager after a configured time; receiving a pager voice signal from the at least one pager; determining whether the received pager voice signal exists, and outputting the received pager voice signal to the outside through the speaker when the received pager voice signal exists; and determining whether a mode conversion command signal is received from the at least one pager when the received pager voice signal does not exist, and converting the operation of the wireless emergency bell into a transmission mode in which data can b e transmitted to the at least one pager and the receiver when there is the received mode conversion command signal.

A system for playback of messages. Context appropriate messages for an environment may be played back. Messages may be user behavior interactive and subject to user behavior initiated message playback conditions. User generated environment events may be automatically analyzed and user behavior interactive messages may be automatically coordinated. An automated themed message playback apparatus may have a self-contained housing within which a stored themed message, an in situ user generated environment event sensor, and an automated themed message playback device are housed. User generated environment events may be automatically sensed in situ.

Devices, methods, and systems for broadcasting a location of a fire are described herein. One device includes a controller configured to receive a report of a fire from a fire sensing device, determine a location of the fire based on the fire sensing device that reported the fire, and transmit a message including the location of the fire to a sounder device for broadcast by the sounder device.

Devices, methods, and systems for broadcasting a location of a fire are described herein. One device includes a controller configured to receive a report of a fire from a fire sensing device, determine a location of the fire based on the fire sensing device that reported the fire, and transmit a message including the location of the fire to a sounder device for broadcast by the sounder device.

Devices, methods, and systems for broadcasting a location of a fire are described herein. One device includes a controller configured to receive a report of a fire from a fire sensing device, determine a location of the fire based on the fire sensing device that reported the fire, and transmit a message including the location of the fire to a sounder device for broadcast by the sounder device.