| 摘要 |
A portable self contained parameter sensing unit for sensing environmental parameters and communicating such to a user. The unit includes a housing having a transducer for conveying information to the user and an integrated circuit. The integrated circuit includes an integrated environmental sensor for sensing current predetermined environmental parameters in the analog domain. It also includes a data converter for converting the sensed current predetermined environmental parameters in the analog domain to the digital domain as digital sensed environmental parameters. An integrated memory is provided for storing information in the digital domain with an integrated processing unit for processing the sensed current predetermined environmental parameters in the digital domain in accordance with translation parameters stored in the integrated memory for conversion such that the digital value of the sensed environmental parameters are translated into a translated value that can be provided to a user. An integrated driver drives an external transducer with a signal representing the digital value of the translated sensed environmental parameters. The overall unit has a power source for powering the integrated circuit and the transducer.
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