CN114148473A - Method for detecting horizontal visible angle of ship sidelight - Google Patents
Method for detecting horizontal visible angle of ship sidelight Download PDFInfo
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- CN114148473A CN114148473A CN202111289899.XA CN202111289899A CN114148473A CN 114148473 A CN114148473 A CN 114148473A CN 202111289899 A CN202111289899 A CN 202111289899A CN 114148473 A CN114148473 A CN 114148473A
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- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000005259 measurement Methods 0.000 claims abstract description 46
- 238000009434 installation Methods 0.000 claims abstract description 22
- 230000000007 visual effect Effects 0.000 claims abstract description 16
- 238000009826 distribution Methods 0.000 claims description 4
- 238000007689 inspection Methods 0.000 abstract description 10
- 238000001514 detection method Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract 1
- 230000000474 nursing effect Effects 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B73/00—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
- B63B73/20—Building or assembling prefabricated vessel modules or parts other than hull blocks, e.g. engine rooms, rudders, propellers, superstructures, berths, holds or tanks
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- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention discloses a method for inspecting the horizontal visual angle of a ship sidelight, which comprises the following steps of S101, confirming the installation position of the ship sidelight; s102, selecting a ship bow sidelight to measure an angle; s103, calculating measurement data; s104, checking the visible angle of the ship bow sidelight; s105, repeating the steps S101-S104 to verify the mounting positions of the bulwarks on the two sides of the ship; s106, confirming the installation position of the ship tail sidelight and selecting a measuring angle; s107, calculating measurement data; s108, repeating the steps S106-S107 to verify the installation positions of the bulwark tails on the two sides of the ship; according to the invention, two mounting position points and mounting distances of the sidelights on the ship deck and on one side of the shore are measured, so that when two groups of sidelights are tested and position and angle inspection is carried out after actual mounting, data measurement resources can be easily obtained, and the mounted position and angle are verified, so that the detection efficiency of a construction party is effectively improved, and the complex measurement process of the acceptance process is further reduced.
Description
Technical Field
The invention relates to the technical field of inspection methods, in particular to an inspection method for a horizontal visual angle of a ship sidelight.
Background
Ships are a general term for various ships. A ship is a vehicle which can be sailed or moored in a water area for transportation or operation, and has different technical performances, equipment and structural types according to different use requirements.
The sidelight is the red light of port side bow area or the green light of starboard side bow area when the ship is gone at night, and conventional boats and ships are in the in-process of building, to the horizontal installation angle of sidelight, the standard has clear requirement, and the standard content is as follows:
the shipboard lights are green lights on a starboard and red lights on a port board, and uninterrupted lights are displayed in horizontal arcs of 112.5 degrees respectively; in the forward direction, a minimum luminous intensity should be displayed. The luminous intensity is between 1 degree and 3 degrees outside the specified light arc, and is weakened to achieve the purpose of practical light cut-off.
At 22.5 ° after positive traverse, the minimum required luminous intensity should be maintained within the horizontal arc up to the inner 5 ° of the specified limits. From the inner 5 °, the luminous intensity can be reduced by 50% up to the specified limit. The luminous intensity should then be continuously reduced to achieve a definite light cut-off at most 5 deg. outside the prescribed arc.
Therefore, in the installation process of the sidelight, a dark black inner light shielding plate needs to be installed in the light box to meet the requirement on the horizontal light arc of the sidelight, and a user needs to perform inspection on the installation position angle according to the specification after the sidelight is installed and delivered, but the inspection method in the prior art has the following defects in practical application:
when the inspection method in the prior art is used for inspecting the ship sidelight at a visible angle, the inspection difficulty is greatly increased due to the interference of the environment, so that a great amount of time cost is wasted by both delivery and acceptance parties, and the requirements of the prior art cannot be met.
Disclosure of Invention
The invention aims to provide a method for inspecting the horizontal visual angle of a ship sidelight, which aims to solve the problem that a lot of time cost is wasted by delivery and acceptance parties due to the fact that the inspection difficulty is greatly increased by the interference of the environment.
In order to achieve the purpose, the invention provides the following technical scheme: a method for checking the horizontal visual angle of a ship sidelight comprises the following steps: s101, confirming the installation position of the ship bow sidelight; s102, selecting a ship bow sidelight to measure an angle; s103, calculating measurement data; s104, checking the visible angle of the ship bow sidelight; s105, repeating the steps S101-S104 to verify the mounting positions of the bulwarks on the two sides of the ship; s106, confirming the installation position of the ship tail sidelight and selecting a measuring angle; s107, calculating measurement data; and S108, repeating the steps S106-S107 to verify the installation positions of the bulwark tails on the two sides of the ship.
Preferably, in step S101, the distribution of the positions of the bow and the stern of the ship is confirmed from the ship form, and the distance L1 between the sidelight and the ship is measured from the installation position of the sidelight.
Preferably, in step S102, an open area is selected on the deck surface of the ship, a measurement point a is selected in the open area, and a measurement point difference between the measurement point a and the sidelight is calculated to obtain a distance L3.
Preferably, in step S103, the distance L4 is L4 ═ tan3 × L3 ≈ 0.0524 × L3 according to a trigonometric function.
Preferably, in step S104, the acquired data is calculated to obtain L2 ═ L1- (0.0524 × L3), and the ship moves a distance L2 in the vertical direction to the side at the point a of measurement and reaches the point B of measurement; and observing the sidelight at the point B for measurement, and verifying the correct angle when the sidelight light cannot be seen.
Preferably, in step S105, the verification of the positions of the bulwark headers on both sides of the ship is performed by repeating steps S101 to S104, and it is determined whether the angles of the positions of the bulwark headers on both sides are correct.
Preferably, in step S106, the light of the sidelight can be seen on the shore of the harbor basin or dock, and the point C is selected for measurement; at this time, a perpendicular distance L6 from the point C to the ship sidelight was measured.
Preferably, in step S107, at the point C, the distance L5 of movement parallel to the center line of the ship in the stern direction is L5 ═ tan27.5 × L6 ≈ 0.5206 × L6, and the point D is measured; the sidelight is observed at the position, and when the sidelight light cannot be seen, the correct angle is verified.
Preferably, in step S108, the steps S106 to S107 are repeated to verify the positions of the bulwark tails on both sides of the ship, and to determine whether the positions and angles of the bulwark tails on both sides are correct.
Preferably, the sidelights are arranged in two groups, and the two groups of sidelights are respectively a green light on a starboard and a red light on a port.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, two mounting position points and mounting distances of the sidelight are measured on the ship deck and on one side of the shore, when position and angle inspection is carried out after two groups of sidelights are actually mounted, data measurement resources can be easily obtained, and the mounted position and angle are verified, so that the detection efficiency of a constructor is effectively improved, the complex measurement process of an acceptance process is further reduced, the time cost of both delivery and acceptance parties is greatly reduced, and the acceptance efficiency is effectively improved.
Drawings
FIG. 1 is a schematic diagram of a measurement distribution structure according to the present invention.
In the figure: 1-distance L1; 2-distance L2; 3-distance L3; 4-distance L4; 5-distance L5; 6-distance L6; 11-measure point A; 12-measure point B; 13-measure point C; 14-measure D point.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
referring to fig. 1, the present invention provides a technical solution: a method for checking the horizontal visual angle of a ship sidelight comprises the following steps: s101, confirming the mounting positions of ship bow bulwarks so as to correctly mount two groups of bulwarks; s102, selecting a ship bow sidelight measurement angle to obtain an optimal measurement position; s103, calculating measurement data to obtain a distance value; s104, checking the visible angle of the ship bow sidelight, so that the visible angle is within the range of 112.5 degrees, and in the forward direction, the lowest luminous intensity is displayed; s105, repeating the steps S101-S104 to verify the mounting positions of the bulwarks on the two sides of the ship, and enabling the data range to fall into the specification requirement; s106, confirming the installation position of the ship tail sidelight and selecting a measuring angle to realize measuring and positioning 22.5 degrees after the ship is straight and across; s107, calculating measurement data to obtain nursing sizes; and S108, repeating the steps S106-S107 to verify the installation positions of the tail parts of the sidelights on the two sides of the ship, wherein the sidelights are two groups, and the two groups of sidelights are respectively a green light on the starboard and a red light on the port board and are respectively arranged on the two sides of the ship body.
Example two:
referring to fig. 1, the present invention provides a technical solution: a method for checking the horizontal visual angle of a ship sidelight comprises the following steps: s101, confirming the mounting positions of the bulwarks at the head of the ship so as to correctly mount two groups of bulwarks, confirming the distribution of the positions of the bow and the stern of the ship according to the shape of the ship, measuring and calculating the distance L11 between the bulwarks and the ship according to the mounting positions of the bulwarks and obtaining distance data;
s102, selecting a ship bow sidelight measurement angle to obtain an optimal measurement position, in the step S102, selecting an open area on a ship deck surface, selecting a measurement point A11 in the open area, calculating a measurement point difference between the measurement point A11 and the sidelight to obtain a distance L33, and obtaining distance data;
s103, calculating measurement data to obtain a distance value, and in the step S103, obtaining the distance L44 as L4 ═ tan3 xL 3 ≈ 0.0524 xL 3 according to a trigonometric function, wherein the last four bits of the data are reserved;
s104, checking the visible angle of the ship bow sidelight so that the visible angle is within 112.5 degrees and the lowest luminous intensity is displayed in the forward direction, calculating the obtained data to obtain L2 which is L1- (0.0524 multiplied by L3) in the step S104, walking the distance L22 to the side in the direction vertical to the centerline of the ship at the measurement point A11, and reaching the measurement point B12 to obtain data;
observing the sidelight at a measurement point B12, and verifying that the angle is correct when the sidelight light cannot be seen, so as to ensure that the angle of the installation position is at a required regulation position;
s105, repeating the steps S101-S104 to verify the mounting positions of the bulwark headers on the two sides of the ship until the data range falls into the specification requirement, repeating the steps S101-S104 to verify the mounting positions of the bulwark headers on the two sides of the ship in the step S105, and judging whether the mounting position angles of the bulwark headers on the two sides are correct or not so as to ensure that the position mounting is correct;
s106, confirming the installation position of the sidelight at the tail of the ship and selecting a measuring angle to realize measuring and positioning 22.5 degrees after the straight crossing, wherein in the step S106, the light of the sidelight can be seen on the shore of a harbor basin or a wharf in the direction vertical to the center line of the ship, and a measuring point C13 is selected; at the moment of measurement, measuring the distance L66 between the C point 13 and the vertical line of the ship sidelight, and storing the measurement data;
s107, calculating measurement data to obtain nursing sizes, wherein in the step S107, starting from the point C13, the distance L55 of the movement parallel to the center line of the ship in the stern direction is L5 ═ tan27.5 xL 6 ≈ 0.5206 xL 6, the ship reaches the point D14, and angle measurement can be effectively carried out through the measured point;
observing the sidelight at the position, verifying the correct angle when the sidelight can not be seen, and checking that the installation angle of the sidelight at the tail side of the ship falls into a specified range by comparing data;
and S108, repeating the steps S106-S107 to verify the positions of the tail parts of the sidelights on the two sides of the ship, wherein the sidelights are two groups, the two groups of sidelights are respectively a green light on the starboard and a red light on the port board and are respectively arranged on the two sides of the ship body, black inner side light shielding plates are respectively arranged in the two groups of sidelights, and in the step S108, repeating the steps S106-S107 to verify the positions of the tail parts of the sidelights on the two sides of the ship, judging whether the position angles of the tail parts of the sidelights on the two sides are correct or not, and ensuring that the installation position angles of the sidelights can obtain the standard.
The working principle is as follows: through two mounted position points and the installation distance to boats and ships on-board and bank one side measurement sidelight when using, record two sets of sidelights and carry out the position angle inspection after actual installation, can easily acquire data measurement resource to carry out the verification to the position angle of installation, and then the effectual detection efficiency who promotes the constructor, further reduced the complicated measurement process of acceptance check process, greatly reduced pay and accept both sides's time cost, effectual promotion acceptance check efficiency.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A method for inspecting the horizontal visual angle of a ship sidelight is characterized by comprising the following steps:
s101, confirming the installation position of the ship bow sidelight;
s102, selecting a ship bow sidelight to measure an angle;
s103, calculating measurement data;
s104, checking the visible angle of the ship bow sidelight;
s105, repeating the steps S101-S104 to verify the mounting positions of the bulwarks on the two sides of the ship;
s106, confirming the installation position of the ship tail sidelight and selecting a measuring angle;
s107, calculating measurement data;
and S108, repeating the steps S106-S107 to verify the installation positions of the bulwark tails on the two sides of the ship.
2. The method for inspecting the horizontal visual angle of the ship sidelight as claimed in claim 1, wherein:
in step S101, the bow and stern position distributions of the ship are confirmed from the ship form, and the distance L1(1) between the sidelight and the ship is measured from the installation position of the sidelight.
3. The method for inspecting the horizontal visual angle of the ship sidelight as claimed in claim 1, wherein:
in the step S102, an open area is selected on the deck surface of the ship, a measurement point a (11) is selected in the open area, and a measurement point difference between the measurement point a (11) and the sidelight is calculated to obtain a distance L3 (3).
4. The method for inspecting the horizontal visual angle of the ship sidelight as claimed in claim 1, wherein:
in step S103, the distance L4(4) is L4 ═ tan3 × L3 ≈ 0.0524 × L3 according to the trigonometric function.
5. The method for inspecting the horizontal visual angle of the ship sidelight as claimed in claim 1, wherein:
in step S104, the acquired data is calculated to obtain L2 ═ L1- (0.0524 × L3), and the ship moves a distance L2(2) to the side in the vertical ship center line direction at the measurement point a (11) and reaches the measurement point B (12);
the sidelight is observed at the point (12) of measurement B, and when the sidelight light is not seen, the correct angle is verified.
6. The method for inspecting the horizontal visual angle of the ship sidelight as claimed in claim 1, wherein:
in step S105, the steps S101 to S104 are repeated to verify the positions of the bulwark headers on both sides of the ship, and determine whether the angles of the positions of the bulwark headers on both sides are correct.
7. The method for inspecting the horizontal visual angle of the ship sidelight as claimed in claim 1, wherein:
in the step S106, the direction of the center line of the ship is perpendicular to the direction of the center line of the ship on the shore of a harbor basin or a wharf, the lamplight of a sidelight can be seen, and a measuring point C (13) is selected; at this time, a distance L6(6) from the point C (13) to the vertical line of the ship sidelight is measured.
8. The method for inspecting the horizontal visual angle of the ship sidelight as claimed in claim 1, wherein:
in step S107, starting at the measurement point C (13), the distance L5(5) parallel to the center line of the ship and moving in the stern direction is L5 ═ tan27.5 × L6 ≈ 0.5206 × L6, and reaches the measurement point D (14);
the sidelight is observed at the position, and when the sidelight light cannot be seen, the correct angle is verified.
9. The method for inspecting the horizontal visual angle of the ship sidelight as claimed in claim 1, wherein:
in step S108, the steps S106 to S107 are repeated to verify the positions of the sidelight tails on both sides of the ship, and to determine whether the positions and angles of the sidelight tails on both sides are correct.
10. The method for inspecting the horizontal visual angle of the ship sidelight as claimed in claim 1, wherein: the sidelight is equipped with two sets ofly altogether, and two sets of sidelight are the green light and the port red light that gets of starboard respectively.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111289899.XA CN114148473A (en) | 2021-11-02 | 2021-11-02 | Method for detecting horizontal visible angle of ship sidelight |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111289899.XA CN114148473A (en) | 2021-11-02 | 2021-11-02 | Method for detecting horizontal visible angle of ship sidelight |
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| CN114148473A true CN114148473A (en) | 2022-03-08 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1432955A (en) * | 1972-07-06 | 1976-04-22 | Martin W S | Sea-going vessels with navigationlight systems |
| CN103017727A (en) * | 2012-12-22 | 2013-04-03 | 厦门船舶重工股份有限公司 | Detection method for mounting accuracy of ship navigation signal lamp |
| CN103661844A (en) * | 2013-12-13 | 2014-03-26 | 广州文冲船厂有限责任公司 | Method for calibrating ship navigation lamp on sea |
| KR20140071592A (en) * | 2012-12-04 | 2014-06-12 | 대우조선해양 주식회사 | Method and system for measuring of navigation light install degree of ship |
| CN108195248A (en) * | 2017-12-25 | 2018-06-22 | 沪东中华造船(集团)有限公司 | A kind of test method on the bank of ship sidelight |
-
2021
- 2021-11-02 CN CN202111289899.XA patent/CN114148473A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1432955A (en) * | 1972-07-06 | 1976-04-22 | Martin W S | Sea-going vessels with navigationlight systems |
| KR20140071592A (en) * | 2012-12-04 | 2014-06-12 | 대우조선해양 주식회사 | Method and system for measuring of navigation light install degree of ship |
| CN103017727A (en) * | 2012-12-22 | 2013-04-03 | 厦门船舶重工股份有限公司 | Detection method for mounting accuracy of ship navigation signal lamp |
| CN103661844A (en) * | 2013-12-13 | 2014-03-26 | 广州文冲船厂有限责任公司 | Method for calibrating ship navigation lamp on sea |
| CN108195248A (en) * | 2017-12-25 | 2018-06-22 | 沪东中华造船(集团)有限公司 | A kind of test method on the bank of ship sidelight |
Non-Patent Citations (1)
| Title |
|---|
| 白克敏等: "舷灯", 《航海词典》 * |
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Application publication date: 20220308 |