SU738939A1 - Arrangement for experimentally determining parameters of rolling and pitching of vessel with reference to the visible horizontal line - Google Patents

Description

The invention relates to shipbuilding, in particular to installations for the experimental determination of the side and pitching of a ship along the visible horizon.

Known apparatus for the experimental determination of parameters ^S Talnoe board and kilevoy'kachki vessel through the visible horizon including a television camera having a generator frame and line scans' connected to a source of vertical sync, amplitude selector coupled to the outputs of the television cameras, and countable a device to the output _{15 of} which an electronic computing device is connected [1].

- However, the presence of two television cameras complicates the process of placing them on the ship, because the field of view of the cameras _u should not be foreign objects.

The aim of the invention is to simplify the installation.

For this purpose, a calibrated pulse generator electronic key and an electronic switch are introduced into the installation, and a horizontal scanning generator is made in the form of a generator of rectangular bipolar IM pulses of equal duration and amplitude, the input of which is connected to a frame sync pulse source, while the output of the calibrated pulse generator through an electronic key and electronic the switch is connected to a counting device that is connected to the television camera, one control input of the electronic key is connected to the output a amplitude selector, 3 other - with a source of frame sync pulses, and the control input of the electronic switch is connected to the output of a generator of rectangular bipolar pulses of equal duration and amplitude.

The drawing shows a structural diagram of the installation.

738939 4

The installation comprises a television camera 1, which has frame 2 and line 3 generators associated with a source of 4 frame clocks, the output of the television camera being connected to the input of the amplitude selector 5 of the video pulses, the output of which is connected to the first control input of the electronic key 6, and the second input of the electronic key 6 is connected to the source of 4 frame sync pulses 4. The electronic key 6 is installed between the calibrated pulse generator 7 and the information input of the electronic switch 8 j th outputs connected to the inputs of the counting device 9, and outputs the counting device coupled to computer device 10.

Installation works as follows.

The television camera 1 is oriented parallel to the diametrical plane _{25 of the} vessel or perpendicular to it. The scanning beam is aligned at a point that in the initial position coincides with the line of the visible horizon. When the automatic setting switch proiskho- ₃₀ dit source 4 and vertical sync generator 7 of calibrated pulses. The first clock starts the frame 2 and line 3 generators, opens the electronic key ₃₅ 6 and performs the operation 'reset ¹⁷ counters of the device 9.

In this case, the initial phase of the pulse of the vertical scanning generator 2 shifts the ₄ θ scanning beam in the vertical plane, and the rectangular pulse of the horizontal scanning generator 3 - in the horizontal. The deviation of the scanning beam in the horizontal plane is determined by the amplitude of the rectangular pulse, ₄₅ and the direction by its polarity. According to the total effects of two deflecting pulses, the scanning beam! It occupies one of the extreme positions of one of the scan lines. At the same time, pulses from the calibrated pulse generator 7 begin to arrive at the corresponding input of the counting device 9 through the open electronic switch '6 and the electronic switch 8. The receipt of these pulses continues throughout the entire time the scanning beam moves in the vertical plane until it intersects with the line of the visible horizon. At the moment of crossing at the output of the amplitude selector 5, a pulse arises that closes the electronic key 6 and stops the count. Number of recorded pulses Proportional to the duration of the video signal from the start of scanning to the point of intersection with the line of the visible horizon.

After the end of the frame ^x- scan period ^{, the} scanning beam returns to its original position. The second frame clock performs the 'reset' operation of the counter of device 9, transferring the code of the number of counted calibrated pulses to the memory of electronic computing device 10. The cycle is repeated. Based on the data obtained for the duration of the video signals, the electronic computing device calculates the angles and roll and the trim.

The invention simplifies installation and facilitates its maintenance.

Claims (1)

The installation contains a television camera 1, which has frame 2 and lowercase 3 generators associated with a source of 4 soft sync pulses, while the output of the television camera is connected to the input of the amplitude selector 5 of video pulses, the output of which is connected to the first key of the electronic key 6 and the second input of the electronic key 6 is connected to the source of 4 frame sync pulses 4. The electronic key 6 is installed between the generator 7 of calibrated pulses and the information input of the electronic switch 8, a cat Oy outputs connected to the inputs of the counting device 9, and the outputs of the counting device connected to the electronic device 10, the installation works as follows. The television camera 1 is oriented parallel to the diametral plane of the vessel or perpendicular to it. The scanning beam is aligned to a point that in the initial position coincides with the line of the visible horizon. When the installation is turned on, the source automatically turns on 4 frame sync pulses to the generator of 7 calibrated pulses. The first sync pulse triggers the framing 2 and lower 3 sweep generators, opens the electronic key b and performs the resetting operation of the counters of the device 9. In this case, the initial pulse phase of the 2 sweep generator shifts the scanning beam in the vertical plane and the rectangular pulse of the horizontal sweep 3 - in horizontal. The magnitude of the deviation of the scanning beam in the horizontal plane is determined by the amplitude of the rectangular pulse, and the direction by its polarity. Based on the combined effects of two deviation of the pulses, the scanning beam occupies one of the extreme positions of one of the scanning lines. Simultaneously with this, through the open electronic key 6 and the electronic switch 8, pulses from the generator 7 of calibrated pulses start to arrive at the corresponding NZY5D counting device 9. The pulsing of these pulses lasts for all: h) re-modifying the scanning beam in a vertical plane until it intersects with the line of the visible horizon. At the moment of intersection at the output of the amplitude selector 5, a pulse arises that closes the electronic key b and stops counting. The number of -registered pulses is proportional to the duration of the video signal from the beginning of the scan to the point of intersection with the visible horizon.: After the end of the vertical scanning period, the scanning beam returns to its original position. The second frame sync pulse completes the operation of resetting the counter of the device 9, converting the code of the number of counted calibrated pulses into the memory of the electronic computing device 10. The cycle is repeated. Based on the data obtained, the duration of the video signals electronic computing device proie -. leads the calculation of angles and roll and differents. The invention simplifies installation and facilitates its maintenance. Apparatus for experimental determination of onboard and rolling parameters of a ship on the visible horizon line, including a television camera having frame and line scan generators associated with a source of frame sync pulses, an amplitude selector connected to the outputs of television cameras, and countable the device, to the output of which the electronic computer device is connected, is necessary so that, in order to simplify the installation, a generator of calibrated impulses is inserted into it pulses, electronic key and electronic switch, and the horizontal scan generator is made in the form of a generator of direct 1H multiplicity pulses of equal duration and amplitude, the input of which is connected to a source of frame sync pulses, with the generator output of calibrated pulses through an electronic key and electronic. The switch is connected to a counting device, which is connected to a television camera, one control input of the electronic key) is connected to the output of the amplitude selector, and the other is: h) to the source of personnel :: pulse and the control 57389396 Yoho electronic switch Sue-Sources of information dinea with the release of the hepatorer pr mogol-ptshtye into account during the examination different opposite pulses equal to 1. USSR author's certificate duration and amplitude. № 538936, cl. B 63 B 39/14, 1976.