Proximity detection system
First Claim
1. A detection system for use in a movable large haulage ground vehicle operating in a controlled ground environment to prevent damage to at least one other object, said system comprisingmeans mounted on said at least one other object present in said environment for omnidirectionally radiating an optical pulsed signal having a selected pulse repetition rate which lies within a frequency range from about 500 Hz to about 3 KHz, the selected pulse repetition rate being used to identify the type of said other object;
- optically responsive detection means having a selected field of view mounted at one or more selected locations on said movable vehicle and responsive to said radiated optical pulsed signal when said other object is in the proximity of said movable vehicle within the field of view of said one or more detection means for detecting the presence of said radiated optical pulsed signal so as to provide one or more detected signals; and
means responsive to said one or more detected signals for providing an indication to a driver of said movable large haulage vehicle as to the presence of said object in the proximity of the vehicle, as to the general direction of the location of said object relative to the movable vehicle, and as to the type of said object.
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Accused Products
Abstract
A detection system for use in a movable large haulage vehicle operating in a controlled ground environment to prevent collision with other objects in the environment wherein such objects each have a source for omnidirectionally radiating an optical pulsed signal having a selected pulse repetition rate which identifies the object. The vehicle uses detectors mounted at selected locations on the vehicle, which detectors respond to pulsed signals from objects in close proximity to the vehicle. Appropriate circuitry is used to detect the presence of the objects, the ground direction of the objects relative to the vehicle, and the type of objects so detected.
22 Citations
7 Claims
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1. A detection system for use in a movable large haulage ground vehicle operating in a controlled ground environment to prevent damage to at least one other object, said system comprising
means mounted on said at least one other object present in said environment for omnidirectionally radiating an optical pulsed signal having a selected pulse repetition rate which lies within a frequency range from about 500 Hz to about 3 KHz, the selected pulse repetition rate being used to identify the type of said other object; -
optically responsive detection means having a selected field of view mounted at one or more selected locations on said movable vehicle and responsive to said radiated optical pulsed signal when said other object is in the proximity of said movable vehicle within the field of view of said one or more detection means for detecting the presence of said radiated optical pulsed signal so as to provide one or more detected signals; and means responsive to said one or more detected signals for providing an indication to a driver of said movable large haulage vehicle as to the presence of said object in the proximity of the vehicle, as to the general direction of the location of said object relative to the movable vehicle, and as to the type of said object. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification