BI-DIRECTIONAL HAND-SHAKING SENSOR SYSTEM
First Claim
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1. A method of robust, bi-directional handshaking with a wireless sensor unit, comprising:
- transmitting a communication by said wireless sensor unit;
waiting for an acknowledgment communication by said wireless sensor unit; and
re-transmitting said communication by said wireless sensor unit until said acknowledgment communication is received by said wireless sensor unit.
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Abstract
A low cost, robust, wireless sensor that provides an extended period of operability without maintenance is described. The wireless sensors are configured to communicate with a base unit or repeater. When the sensor unit detects an anomalous ambient condition (e.g., smoke, fire, water, etc.) the sensor communicates with the base unit and provides data regarding the anomalous condition. The sensor unit receives instructions to change operating parameters and/or control external devices.
136 Citations
1 Claim
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1. A method of robust, bi-directional handshaking with a wireless sensor unit, comprising:
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transmitting a communication by said wireless sensor unit; waiting for an acknowledgment communication by said wireless sensor unit; and re-transmitting said communication by said wireless sensor unit until said acknowledgment communication is received by said wireless sensor unit.
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Specification