Telecommunications – Radiotelephone system – Programming control
Reexamination Certificate
2004-08-09
2010-12-28
Appiah, Charles N (Department: 2617)
Telecommunications
Radiotelephone system
Programming control
C455S041200, C455S404100, C455S418000, C455S419000, C340S539220, C340S539260, C340S539270, C340S539280, C340S540000
Reexamination Certificate
active
07860495
ABSTRACT:
On a first level of the wireless building automation architecture, sensors and associated actuators communicate directly. The sensor performs control processes appropriate for the sensor and regardless of the type of actuator being used. The actuator performs control processes specific to the actuator regardless of the type of sensor being used. By direct wireless communication between sensors and actuators, the opportunity for a failed communications link using a hub and spoke arrangement may be avoided. Communication redundancy is provided by receiving the outputs of sensors at a controller, such as a controller on a second high speed or high bandwidth tier of the architecture. Regional control is implemented in the higher level tier. The higher level tier may override or control operation of components of the lower level tier as needed. The distributed control processing allows for more convenient room level integration. Where a problem is detected, such as a fire, corrective action begins within the immediate region of the sensor generating an alarm signal. The corrective action occurs without routing the alarm signal to upper levels of control processes or across different systems. The alarm signal is also propagated to upper level control systems for generating appropriate responses in other zones. To provide the different zones and avoid interference, the transmit power of the sensors and actuators is controlled as a function of two or more other devices.
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Ajibade Akonai Olumide T
Appiah Charles N
Siemens Industry Inc.
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