Navigation system for diving operations
First Claim
1. A spatial orientation system to facilitate navigation for a diver under water, comprisinga base station fixable at a location to which the diver wants to arrive after completing a dive, said base station comprising transmitter means for transmitting a signal, anda mobile unit adapted to be carried by the diver, said mobile unit comprising a compass and locating means for determining information on a return direction from the current position of said mobile unit to said base station, said locating means comprisingreceiving means for receiving the signal transmitted by said transmitter means of said base station,converting means for converting the signal to information on the return direction of said mobile unit to said base station upon receipt of the signal by said receiving means, andcombining means for combining said information on the return direction of said mobile unit to said base station from said converting means with magnetic information on the current position of the diver obtained from said compass in order to maintain current information on the return direction irrespective of the momentary location and position of the diver and said mobile unit.
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Accused Products
Abstract
A navigation system and method for diving operation in view of facilitating navigation under water to a specific location, in particular navigation back to a dive starting point, i.e., to the place from which the diving was started. The system includes a base station fixed to the starting point, such as a boat or equivalent, and arranged to transmit a signal to its environment, and a mobile unit carried along by the diver. The mobile unit includes a compass and a locating part which receives the signal transmitted by the base station. The locating part converts the signal to information on the return direction, and combines the information on the return direction with the magnetic information on the direction obtained from the compass, so that the information on the return direction from the position of the diver when the signal is received is maintained irrespective of the momentary location and position of the diver and the mobile unit.
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Citations
21 Claims
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1. A spatial orientation system to facilitate navigation for a diver under water, comprising
a base station fixable at a location to which the diver wants to arrive after completing a dive, said base station comprising transmitter means for transmitting a signal, and a mobile unit adapted to be carried by the diver, said mobile unit comprising a compass and locating means for determining information on a return direction from the current position of said mobile unit to said base station, said locating means comprising receiving means for receiving the signal transmitted by said transmitter means of said base station, converting means for converting the signal to information on the return direction of said mobile unit to said base station upon receipt of the signal by said receiving means, and combining means for combining said information on the return direction of said mobile unit to said base station from said converting means with magnetic information on the current position of the diver obtained from said compass in order to maintain current information on the return direction irrespective of the momentary location and position of the diver and said mobile unit.
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13. A method for facilitating navigation for a diver under water to arrive a specific location, comprising
fixing a base station to the location, transmitting a signal from the base station, determining information on a return direction from the current position of a mobile unit being carried along by the diver to said base station, said return direction information determining step comprising the steps of receiving the signal transmitted from said base station and converting the signal to information on the return direction, and maintaining the information on the return direction irrespective of the momentary location and position of the diver by combining the information on the return direction with magnetic information on the current position of the diver obtained from a compass arranged in the mobile unit.
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21. A spatial orientation system for diving operation to facilitate navigation for a diver under water, comprising
a base station fixable at a location to which the diver wants to arrive after completing a dive, said base station comprising a transmitter for transmitting a signal, and a mobile unit adapted to be carried by the diver, said mobile unit comprising a compass and a locating system for determining information on a return direction from the current position of said mobile unit to said base station, said locating system being arranged to receive the signal transmitted by said transmitter of said base station, convert the signal to information on the return direction of said mobile unit to said base station upon receipt of the signal by said locating system, and combine said information on the return direction of said mobile unit to said base station with magnetic information on the current position of the diver obtained from said compass in order to maintain current information on the return direction irrespective of the momentary location and position of the diver and said mobile unit.
Specification