love these electromechanical gizmos. Sure, there's Arduino but these actually move.
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Good catch, Romel!
I had no idea till now how he got them to steer such a precise course.Leave a comment:
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A magnetic needle remote-controlled model submarines
Helmut Huhn and Heinrich Kistenich have developed a batch of remote-controlled model submarines steered by means of a compass needle. The inventors placed a cheap pocket compass' magnetic needle inside a voltmeter's coil frame rotated by means of a remote-controlled servo-motor to set the ship's course. The needle's rotation is limited by two lateral stops. Located above the needle's north end, an LED casts its shadow onto two phototransistors (s. pics below). As long as the latters receive a differential amount of light they activate the ship's propellers until the hull is on course and the needle exactly between the phototransistors.Leave a comment:
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Some info I got off the web.
The control is done with a touch system. 16 sound channels are available to control each boat (4-way time-division multiplexing). A fifth sound channel has 7 key tones so that 6 boats can be addressed separately. The 7th tone controls all boats simultaneously.
When the boat is switched on via a permanent magnet, operating mode 1 is activated. In the first 2 seconds, a motor potentiometer compensates for any changes in air pressure so that different air pressure has no effect on the diving depth.
The driving functions are divided into three operating modes.
In operating mode 1 , only the piston tank is addressed, with the following functions: 1. Empty the tank, 2. Fill the tank to a residual buoyancy of 12.5 grams, 3. Fill the tank to an underbuoyancy of 12.5 grams, 4. Activation of the static depth control at a depth of 0 to 3.5 m. With this function, the boat stands "still as a pike", but with a very slow vertical control stroke of +/- 1.5 cm. This weight control window of a total of 25 grams can be moved, which makes an effective change in the boat's weight possible.
Operating mode 2 activates manual driving of the boat. 3 speed levels (6, 12 and 24 volts) for forward and reverse drive form the drive. The rudder movements for the elevators and rudder, which are typical for a tipping system, are adapted to the boat in terms of speed and power. If the two elevators (like the gill fins on a shark) are not operated by the transmitter, the longitudinal and transverse position sensors take over control of the fins. When reversing, the elevators are controlled with the opposite sign, which means that the horizontal guidance of the boat is maintained.
With operating mode 3, the fully automatic driving mode is activated. The boat can now drive independently with the transmitter switched off. The previously entered data was: 1. the direction via the compass, 2. the depth via the depth setpoint, 3. the first speed level, 4. active position control. The drive is switched off after 3 minutes via a time relay. If there are several boats in the water and all have the same setting, convoy driving can be done. All boats can receive the command to turn at the same time via the synchronous channel. The necessary correction of a boat can be made via the respective key tone.
Last edited by redboat219; 07-20-2024, 10:15 PM.Leave a comment:
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Looks like one of Helmut Huhn's boats, I wonder how it ended up in a UK auction? He had a bunch of them that were sailed together, and were capable of semi autonomous control. They date back to the 1960's.
Attached FilesLast edited by Subculture; 07-20-2024, 12:57 PM.Leave a comment:
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