Tire detecting device
First Claim
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1. A tire detecting device, comprising (a) a detecting unit, comprising a detector, an amplifier connecting to said detector, and an analog/digital (A/D) converter connecting to said amplifier;
- b) a digital signal processing (DSP) unit, connecting to said detecting unit, said DSP unit having a power supplier;
(c) a signal output, connecting to said DSP unit; and
(d) a receiver, receiving signals from said signal output, wherein said detector comprises an electrode layer;
a piezoelectric transducer (PZT) layer, corresponding to said electrode layer; and
an insulation part between said electrode layer and said PZT layer; and
wherein a cavity part is obtained between said electrode layer and said PZT layer.
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Abstract
The present invention provides a tire detector which is small, easily made and easily installed.
11 Citations
16 Claims
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1. A tire detecting device, comprising
(a) a detecting unit, comprising a detector, an amplifier connecting to said detector, and an analog/digital (A/D) converter connecting to said amplifier; -
b) a digital signal processing (DSP) unit, connecting to said detecting unit, said DSP unit having a power supplier;
(c) a signal output, connecting to said DSP unit; and
(d) a receiver, receiving signals from said signal output, wherein said detector comprises an electrode layer;
a piezoelectric transducer (PZT) layer, corresponding to said electrode layer; and
an insulation part between said electrode layer and said PZT layer; and
wherein a cavity part is obtained between said electrode layer and said PZT layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 13, 14, 15, 16)
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9. A tire detecting device, comprising
(a) a detecting unit, comprising a detector, an amplifier connecting to said detector, and an A/D converter connecting to said amplifier; -
(b) a DSP, connecting to said detecting unit, said DSP unit having a power supplier;
(c) a signal output, connecting to said DSP unit; and
(d) a receiver, receiving signals from said signal output, wherein said detector comprises (a) a circuit board having a hole;
(b) an electrode layer; and
(c) a PZT layer; and
wherein said electrode layer and said PZT layer are respectively deposed at two sides of said hole.
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Specification