IDENTIFYING A DIRECTIONAL REFERENCE USING RATE GYROS ORIENTED ALONG DIFFERENT AXES
First Claim
1. A surveillance system, comprising:
- a set of deployable stationary devices, each deployable stationary device including (i) a device support, (ii) rate gyros supported by the device support, the rate gyros being oriented along different axes, and (iii) a controller supported by the device support, the controller being arranged to;
receive rate gyro signals from the rate gyros, each rate gyro signal indicating a rate of rotation about a respective axis associated with a particular rate gyro, perform a vector sum operation based on the rate gyro signals, andgenerate a direction signal which identifies a direction resulting from performance of the vector sum operation; and
a base station arranged to (i) acquire, from each deployable stationary device, a device signal which includes the direction signal generated by the controller of that deployable stationary device, and (ii) identify a location of interest based on the device signal from each deployable stationary device.
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Accused Products
Abstract
A deployable stationary device includes a device support, rate gyros supported by the device support, the rate gyros being oriented along different axes, and a controller supported by the device support. The controller is arranged to receive rate gyro signals from the rate gyros. Each rate gyro signal indicates a rate of rotation about a respective axis associated with a particular rate gyro. The controller is further arranged to perform a vector sum operation based on the rate gyro signals, and generate a direction signal which identifies a direction resulting from performance of the vector summing operation. Such a deployable stationary device is capable of operating as one of a network of such devices in a surveillance system to enable detection and precise location of suspicious activity.
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Citations
20 Claims
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1. A surveillance system, comprising:
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a set of deployable stationary devices, each deployable stationary device including (i) a device support, (ii) rate gyros supported by the device support, the rate gyros being oriented along different axes, and (iii) a controller supported by the device support, the controller being arranged to; receive rate gyro signals from the rate gyros, each rate gyro signal indicating a rate of rotation about a respective axis associated with a particular rate gyro, perform a vector sum operation based on the rate gyro signals, and generate a direction signal which identifies a direction resulting from performance of the vector sum operation; and a base station arranged to (i) acquire, from each deployable stationary device, a device signal which includes the direction signal generated by the controller of that deployable stationary device, and (ii) identify a location of interest based on the device signal from each deployable stationary device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A deployable stationary device, comprising:
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a device support; rate gyros supported by the device support, the rate gyros being oriented along different axes; and a controller supported by the device support, the controller being arranged to; receive rate gyro signals from the rate gyros, each rate gyro signal indicating a rate of rotation about a respective axis associated with a particular rate gyro, perform a vector sum operation based on the rate gyro signals, and generate a direction signal which identifies a direction resulting from performance of the vector sum operation. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. In a deployable stationary device having rate gyros oriented along different axes, a method of identifying a directional reference, the method comprising:
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receiving rate gyro signals from the rate gyros, each rate gyro signal indicating a rate of rotation about a respective axis associated with a particular rate gyro; performing a vector sum operation based on the rate gyro signals; and providing a direction signal which identifies a direction resulting from performance of the vector sum operation. - View Dependent Claims (19, 20)
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Specification