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Device for monitoring the anchor or anchor chain

  • US 6,472,983 B1
  • Filed: 10/21/1999
  • Issued: 10/29/2002
  • Est. Priority Date: 04/21/1997
  • Status: Expired due to Fees
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Assignment
First Claim
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1. An anchor or anchor chain monitoring device for an anchored floating object, having a measuring means for measuring a condition of at least one of force and motion occurring on at least one position of one of an anchor and an anchor chain between said anchor and said anchored floating object which employs at least one first sensor to record said condition and which emits an electrical signal characteristic of said condition, transmitting means which receives said signal emitted from said measuring means and which transmits signals corresponding thereto, an alarm output and operating means, a central alarm means which receives and processes sensor signals which originate from a group of second sensors encompassing an entry sensor which registers an intrusion of said anchored floating object, either mechanically or via registering of changes in an electric, magnetic or optical field, a flood sensor which ascertains when a water level in said anchored floating object exceeds a predetermined critical value, a wind sensor which registers a prevailing wind strength, a list sensor which registers a listing of said anchored floating object, a mooring line sensor which registers, when said anchored floating object is retained with a mooring line, the force exerted from said mooring line onto said anchored floating object and whereby said central alarm means emits a warning alarm when one of said group of second sensors shows that an undesired condition has occurred, characterized by:

  • said transmitting means includes a control means which induces that said corresponding signals are transmitted at transmission intervals;

    said transmitting means includes a signal generating means which generates an identification signal which is characteristic for the individual transmission means and which uniquely identifies same;

    said transmitting means is disposed in a pressure-tight, oil-filled housing;

    said control means inducing said identification signal to be transmitted at least once during each transmission interval;

    said alarm output means includes a receiver, a memory in which an identification comparison signal corresponding to each of a plurality of individual transmitting means is stored, said individual transmitting means and said alarm output means thereby variably configurable to allocate said individual transmitting to said output alarm means;

    said alarm output means includes a comparison means which analyzes whether the identification signal emitted from the transmitting means concurs with the stored identification comparison signal in the alarm output means, whereby a forwarding or further processing of the signals received by said alarm output means only occurs when the signals received by said alarm output means and the stored identification comparison signal in said alarm output means are substantially identical;

    said alarm output means receives said signals emitted by said transmitting means and issues a warning alarm when the measured condition exceeds a predetermined critical value; and

    said central alarm means is furthermore preferably configured such that any condition deviation is then transmitted in wireless fashion to a receiver device which is operable to register signals from said anchored floating object even when situated at a remote distance therefrom.

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