A monitor for an intravenous pump audio alarm. The client needs to be alerted by a vibrating pager as she is deaf. The pump has no alarm output other than an audio signal. A system has been designed and built that can distinguish the pump alarm in relatively high ambient noise and reject other events such as knocking or tapping on the microphone sensor.
The capability to prepare food is a key marker for an independent life but, unless you are going to live on cold food, that means cooking. What could be easier? A temperature sensor and a relay and some bespoke interfacing. Except – ovens, especially built-in ones, are hostile environments for electronics.
This alarm unit is for use by a mobility impaired client, to wake up their deaf spouse in the night for assistance.
The 60 year old deaf/blind client requested a device that would warn him of head height obstructions when walking. An ultrasonic proximity detector was mounted on a shoulder saddle and connected to a vibrator fastened to the client’s wrist. Electronic circuitry converts the signal from the sensor to a pulsating voltage that operates the vibrator. […]