EP0088772A1 - Marine thermal auto-pilot - Google Patents
Marine thermal auto-pilotInfo
- Publication number
- EP0088772A1 EP0088772A1 EP82902667A EP82902667A EP0088772A1 EP 0088772 A1 EP0088772 A1 EP 0088772A1 EP 82902667 A EP82902667 A EP 82902667A EP 82902667 A EP82902667 A EP 82902667A EP 0088772 A1 EP0088772 A1 EP 0088772A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat sensitive
- vessel
- sensitive members
- temperature
- differential system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 230000000007 visual effect Effects 0.000 claims description 3
- 238000009529 body temperature measurement Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 claims 1
- 238000005259 measurement Methods 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- 229910001220 stainless steel Inorganic materials 0.000 claims 1
- 239000010935 stainless steel Substances 0.000 claims 1
- 239000002023 wood Substances 0.000 claims 1
- 239000003643 water by type Substances 0.000 abstract 1
- 238000013459 approach Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H25/00—Steering; Slowing-down otherwise than by use of propulsive elements; Dynamic anchoring, i.e. positioning vessels by means of main or auxiliary propulsive elements
- B63H25/02—Initiating means for steering, for slowing down, otherwise than by use of propulsive elements, or for dynamic anchoring
- B63H25/04—Initiating means for steering, for slowing down, otherwise than by use of propulsive elements, or for dynamic anchoring automatic, e.g. reacting to compass
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D1/00—Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots
- G05D1/02—Control of position or course in two dimensions
- G05D1/0206—Control of position or course in two dimensions specially adapted to water vehicles
Definitions
- This invention relates to temperature measurements of water, and to guiding any marine vessel towards cold or warm temperature currents as desired and assist the vessel in staying in a current of a desired temperature. Such an application is particularly useful in game fishing ocean racing and tuna fishing.
- temperature measuring devices are used: in many types of marine vessels for fishing or to help said vessel by. indicating whether or not said vessel is in a desired water temperature.
- Such devices as are presently known incorporate one heat sensitive member which is located outside said vessel througfi a small hole in said vessel, or inside said vessel in the line intake for the engine water cooling system.
- said devices are not of the required accuracy for fishing where water temperature must be observed with high accuracy and sensitivity. For example in tuna fishing, a water temperature of 17-18.5oC is required.
- the object of this invention relates to overcoming all of the above problems presently experienced with known temperature measuring devices for the measuring of water temperature change.
- Said invention has the capacity to indicate the direction in relation to .the vessel in which the temperature of the water is changing; the capacity to steer said vessel towards any cooler or warmer water current, with appropriate sound and visual warnings for any indication of water temperature change; and the capacity to maintain said vessel, in a certain water current, the temperature range of which has been pre-nominated and set.
- Said temperature range and said steering capacity is adjustable so as to suit all variables such as vessel size, rudder response time, degree of temperature change in water and the speed of vessel.
- said device allows the vessel' s pilot to operate said device manually as well as automatically.
- Figure 1 is a schematic perspective view of the marine thermal autopilot incorporating the digital readout and all the necessary switches and the heat sensitive members.
- Figure 2 represents the block diagram and logic flow-.of the device, including the controller and monitor.
- Figure 3 is an illustration of the use of the contact relay system of the controller' s output in connection to any type of motor such as direct current , single phase and three phase motors. Said use makes said device very versatile and easy to install on any vessel.
- Figure 4 is a schematic illustration of a marine vessel using the thermal device.
- the thermal auto-pilot apparatus shown in Figure 1 comprises the electronic controller 2 which continously monitors the signal received from the heat sensitive members 5 and 6; said controller also has the task of computing its own thermal differential system. and supplying a continuous and regulated current to said heat sensitive members through wires 7 and 8. This capacity of said controller, allows the heat sensitive members 5 and 6 to be placed at any distance from the said controller 2.
- Said controller 2 is capable of receiving, beside the two command signals from said heat sensitive members 5 and 6, an additional command signal from window range switch 11, used for setting a temperature range to allow a range of temperatures to be nominated so that said device can respond to said range.
- Said temperature range as set, and time of response to the result of the differential thermal analyses as computed by said controller 2 are adjustable according to vessel and water environment requirements.
- Said controller 2 is powered by 12 volts DC supply 1 directly from the vessel or via a small suitable solar photovoltaic cell panel.
- Switch 3 is used to turn the entire equipment On or Off, while indicator 4 displays the mode of power supply in the following manner: light on means all OK; light flashing means low power supply; and light off means power failure or fuse needs to be changed.
- Light 12 appears when the vessel approaches the set temperature range as set by switch 11.
- Buzzer 13 will give a warning sound when said vessel approaches said set water temperature range. Buzzer switch 13 can be reset so as to avoid a continuous warning sound.
- the exact temperature measured by said heat sensitive members 5 and 6 are calculated by said controller 2 and said temperature is displayed digitally on 9 and 10 indicators in oC or oF within + 0.1 .
- Warninq lights 14 and 15 located adjacent to or under each temperature display, said warning lights flash to indicate the direction said vessel is taking, either port or starboard, away or towards the desired water temperature.
- the indicating gauge 20 contains a needle which shows the degree and direction of the temperature difference.
- Switch 16 is for driving the vessel automatically, after connecting the rudder motor with output 17.
- Outputs 18 and 19 are for recording or read out, using a chart recorder or similar device.
- FIG. 3 The manner in which the motor of the rudder is connected to output 17 is illustrated in Figure 3: by using the contact, relay output system, said motor is easily wired to any type of motor of any voltage.
- Figure 2A illustrates how the system operates normally; and Figure 2B shows how said system operates electronically.
- the electronic. controller 2 is usually mounted in the cabin of the vessel; however, it is recommended to mount the heat sensitive members 5 and 6 on the vessel as show in Figure 4 with one member along each side of said vessel; all wires and said heat sensitive members are enclosed in PVC pipes, similar to those used in house wiring, for physical protection from the vessel' s deck and/or from in the water.
- the PVC pipe enclosing each heat sensitive member must have at least two holes which would be immersed in the water at the desired depth, so as to allow the flow of water and enable said device to record accurate and representative temperature of the water.
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Automation & Control Theory (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
- Farming Of Fish And Shellfish (AREA)
Abstract
Un dispositif peut guider ou maintenir un bateau dans des eaux ayant une température sélectionnée, par exemple de l'ordre de 17 à 18oC. Des détecteurs (5) et (6) mesurent en continu la température de l'eau des deux côtés du bateau, lesquelles températures sont affichées en (9) et (10). Un contrôleur (2) contrôle ces températures jusqu'à ce que la plage de température désirée, établie à l'aide du commutateur (11), soit atteinte. Celle-ci est indiquée par un signal lumineux (12) et un signal sonore (13) d'avertissement. Le commutateur (16) est ensuite placé sur le mode automatique pour barrer le bateau dans la plage de température désirée établie par le commutateur (11). Cette direction est obtenue en connectant la sortie de signaux (17) sur le gouvernail du bateau. La direction du mouvement du bateau vers la plage de température requise est indiquée par un appareil de mesure (20) et des témoins lumineux (14) et (15).A device can guide or maintain a boat in waters having a selected temperature, for example of the order of 17 to 18°C. Sensors (5) and (6) continuously measure the temperature of the water on both sides of the boat, which temperatures are displayed at (9) and (10). A controller (2) controls these temperatures until the desired temperature range, set using the switch (11), is reached. This is indicated by a warning light (12) and an acoustic signal (13). Switch (16) is then placed in automatic mode to steer the boat within the desired temperature range established by switch (11). This direction is obtained by connecting the signal output (17) to the rudder of the boat. The direction of movement of the boat towards the required temperature range is indicated by a measuring device (20) and indicator lights (14) and (15).
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU891/81 | 1981-09-24 | ||
AU89181 | 1981-09-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0088772A1 true EP0088772A1 (en) | 1983-09-21 |
Family
ID=3691561
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP82902667A Withdrawn EP0088772A1 (en) | 1981-09-24 | 1982-09-09 | Marine thermal auto-pilot |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0088772A1 (en) |
AU (1) | AU8817882A (en) |
-
1981
- 1981-09-24 AU AU88178/82A patent/AU8817882A/en not_active Abandoned
-
1982
- 1982-09-09 EP EP82902667A patent/EP0088772A1/en not_active Withdrawn
Non-Patent Citations (1)
Title |
---|
See references of WO8301048A1 * |
Also Published As
Publication number | Publication date |
---|---|
AU8817882A (en) | 1983-03-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Designated state(s): AT BE CH DE FR GB LI LU NL SE |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19831121 |