KR100815714B1 - Ship Block Transportation System - Google Patents

Abstract

The present invention relates to a method for managing an assembly block for ships, the purpose of which is to efficiently manage the assembly block by moving and stacking the ship assembly block using an electronic map using GPS, the means of movement controlled by the control center It is to provide a ship assembly block management method that can facilitate the smooth movement of, to facilitate the cooperation of the relevant departments of the assembly block by sharing information about the assembly block, and at the same time maximize the work efficiency.

The present invention provides an electronic map input step of measuring an accumulation area of an assembly block by precision GPS and forming it as an electronic map combined with planar Cartesian coordinate values and storing it as a central processing unit in a control center; An assembly block information transmission step of transmitting information of the assembly block to a control center by GPS; An assembly block designation step of designating a loading position of the assembly block and a movement path of the assembly block in comparison with the received information of the assembly block and the information on the electronic map; An assembly block position tracking step of automatically detecting mounting of the assembly block to the movement means and transmitting the position of the assembly block and information of the movement means to the control center by GPS; A moving means controlling step of controlling the progress of the moving means in preparation for the moving position, the path and the required time of the moving means mounted with the assembly block and the other mounting block; An assembly block position checking step of automatically detecting the getting off of the assembly block and transmitting it to the control center by GPS to confirm the loading position of the assembly block; Connected to the control center and the network is to provide a ship assembly block management method consisting of an information sharing step for sharing information about the current location of the assembly block, the movement path, the placement area and the like.

Building Block, Ship, GPS, Block Number, Electronic Map

Description

Assembly Block Management Method for Ships {Ship Block Transportation System}

1 is an exemplary view showing the overall configuration of the present invention

2 is a block number search flow chart according to the present invention.

3 is an embodiment of an electronic map according to the present invention;

4 is an exemplary diagram of a GPS precision survey reference point according to the present invention.

5 is an exemplary view showing a road network configuration according to the present invention

6 is an exemplary view showing the flow of search procedure of the polygon number in the database of the present invention.

Figure 7 is an exemplary view showing the relationship between the moving means and the load sensor and the assembly block according to the present invention

* Explanation of symbols for main parts of the drawings

(11): assembly block (14): load detection sensor

(17): transporter (22): road network

(23): block number (24): factory

25: Building 26: Electronic Map

(27): path center point (28): node                 

(29): route (30): reference point

(32): signal synthesis amplifier (33): input of central processing unit

(41): GPS (42): satellite

(43): centralized control unit (44): wireless terminal

(45): base station (46): control center

47: database 48: user

(49): network

The present invention relates to a method for managing an assembly block for ships, which classifies a loading area of the ship assembly block into a digital block number and electronically maps it, and detects the current position of the assembly block in real time, according to the block number of the electronic map. The method relates to a ship assembly block management method that can manage the assembly block efficiently by loading and sharing the information.

Due to the rapid growth of the shipbuilding industry, large shipbuilding surveys continue to expand the plant site with the increase of construction facilities, but are experiencing difficulties in raising land prices or reclaiming land. In addition, the number of building blocks of one ship manufactured in various processes for each process reaches 150 to 250, and when building about 60 new ships per year, the assembly blocks not only occupy the area occupied by thousands of building blocks but also carry the building blocks. Due to the heavy workload and excessive manpower input, the cost of transporters with 300 tons of transport capacity should be about 10 expensive transportation equipments exceeding 1.5 billion won. Due to the enormous loss incurred by intangibles, such as traffic jams, it is a big challenge to secure competitiveness in shipbuilding surveys.

In large-scale workplaces that simultaneously design and construct dozens of ships, the design, production, layout, and assembly process of the assembly blocks are intricately linked, so the efficient movement, placement status, and location information of the produced assembly blocks are very important.

However, in reality, accurate location information of building blocks is not documented and shared in real time, and when 24 hour building blocks are transported, especially when logistics movement is performed at night, which is rare, it is fully dependent on the experience and knowledge of skilled workers. In addition, the results of the work are reported by hand, which leads to disruptions in the work of related departments, resulting in a decrease in productivity.

Therefore, the most accurate and basic information on the movement of the assembly block or the location of the block number and the method of confirming whether the vehicle is loaded or unloaded from the transporter, which is a means of transportation, are the most essential and basic elements in the optimal placement or transportation management of the assembly block. In the transport task of the transporter and the arrangement of the workers, a means for grasping the location information of the assembly block in real time and effectively controlling the transporter is urgently required.

The present invention has been made in consideration of the above problems, and its object is to efficiently manage the assembly block by moving and stacking the ship assembly block using an electronic map using GPS, and control the means of movement by the control center. To facilitate the movement of the means, and to share the information on the assembly block to facilitate the work coordination of the assembly block-related departments, while providing a ship assembly block management method that can maximize the work efficiency.

1 is an exemplary view showing the overall configuration of the present invention, the present invention is to measure the loading area of the assembly block by precision GPS and form it as an electronic map combined with a planar rectangular coordinate value in the center of the control center An electronic map input step of storing the processing unit, an assembly block information transmission step of transmitting the information of the assembly block to the control center by GPS, and comparing the information of the received assembly block and the information of the electronic map of the assembly block A step of designating a loading position and a moving path of the assembly block, an assembly block position tracking step of automatically detecting mounting of the assembly block on the moving means, and transmitting the position of the assembly block and information of the moving means to the control center by GPS; In preparation for the movement position, the movement path and the required time of the movement means mounted with the assembling block and the movement means mounted with another assembling block, The control step of controlling the vehicle, the assembly block position checking step of automatically detecting the disembarkation of the assembly block and transmitting it to the control center by GPS to confirm the loading position of the assembly block, and connected and assembled by the control center and the network The assembly block can be efficiently managed through an information sharing step of sharing information on the block's current position, movement path, placement area, and the like.

The electronic map is provided as a means for quantifying and using spatial information in which a specific area in which a ship building block is loaded, that is, a transporter such as a transporter, is used. The road network connected to the block number and the various facilities installed around it are separated to have coordinate values. In more detail, as shown in FIG. 3, the electronic map 26 displays a number of block numbers 23, road networks 22, factories 24, and buildings 25 such as location information on facilities such as RTK ( Surveying with Real Time Kinematic (Equipment) equipment, it has precise and accurate spatial information combined with TM (transverse Mercator) plane Cartesian coordinates.

That is, for example, a precision GPS (Global Positioning System) for positioning the road network 22, the factory 24, the building 25, etc., to be displayed on the electronic map 26 containing geographic information of more than 5,000,000 m 2. The reference point 30 was determined using RTK equipment.

The reference point offset is corrected with the TM Cartesian coordinate system longitude value, which is the reference global coordinate, and the GPS reference point expressed by TM coordinate system, which is the real coordinate, is 3,400 points centered on the free space in which the assembly block 11 can be stored. Measure and write to AutoCAD standard DXF format file. This embodiment and the road network 22 is shown in Figures 4 and 5, respectively.                     

Surveying of buildings that are difficult to survey with satellite radio shade areas or GPS with the GPS reference point 30 for surveying with an error within ± 20 mm is possible by using a laser light wave to obtain coordinate values, so that the cumulative error is maximum ± Road network for location tracking of transport means such as transporter 17 by eliminating offset of coordinates and offset of WGS84 (World Geodetic System 1984) satellite navigation system As a block map 23 for storing navigation maps and assembling blocks 11 having 22, it has a feature that can be accurately distinguished and recognized from a number of adjacent block books 23. FIG.

As a method for matching the local coordinates of the electronic map 26 to the TM rectangular coordinate system, which is a global coordinate, the reference point is the eastern origin (38 ° N, 129 where the north latitude 38 ° line and the longitude 129 ° line meet). ° E), if the survey point is located to the right or upward direction with respect to the reference point, record the survey point by adding the distance from the reference point to the reference offset values (500000, 200000) and subtracting the distance value if it is to the left or below. : N, 221115.980 E, 239272.450, Beam 59: N, 223773.660 E, 239404.000, Beam 1: N, 224080.120 E, 240182.870 and Ulsan 19: N, 223773.660 E, 237834.380

The coordinates measured by the DGPS in the WGS84 coordinate system are obtained by obtaining the longitude and latitude difference from the reference point 30, and the longitude and latitude difference is λ (129-λ2) and Φ (38-Φ2), respectively. The distance X between latitude and longitude X and latitude, Y, is converted by the following equation.                     

[Equation 1]

The conversion error due to the change of altitude is measured within GPS because the influence of the error of recognizing the block number 23 of the present invention is less than several tens of millimeters in the battery map 26 of the present invention. When the coordinates of latitude and longitude of the satellite information are converted into TM coordinates, it is (200,000 m + X, 500,000 m-Y), and in this case, the region where the electronic map 26 of the present invention is located, X denotes a positive sign, Y has a minus sign.

The block number is where the assembly block is actually placed. Referring to FIGS. 6 and 7, the block number 23 in the electronic map 26 is stored in the database 47 in the form of a polygon consisting of polygonal faces. The polygon number is stored as "O_ID" which is a data field used to distinguish and recognize each similar polygon object, "TYPE" which records the polygon type, "Line attribute" which defines the line thickness, color and line type, "O_ID" is used when retrieving figure information by having a "surface property" that defines the color, pattern, background, and color of the face, and a basic data structure that records the coordinates of each point of the face. Reads the block number 23 as the main search keyword and stores it in the database 47 for the block number 23, which is a commercial database where users can change or add items. The block number 23 database is a block The management information for the user such as the area and number of the branch number 23 is stored, and the ship line information of each ship to be assembled by the current block number 23 and the assembly block 11 can be displayed on the electronic map 26. It has a characteristic.

일 때, 폴리곤을 형성하는 각 점 즉, 버텍스(vertex)의 평균은 다음과 같다.The center point, which is the equilibrium point of the spatial distribution in each polygon, represents the polygon and has the same meaning as the mean, and is used for summarizing distribution changes over time or determining shape coordinate points.

When, the average of each point forming the polygon, that is, the vertex is as follows.

계산을 이용해서 분류하며, 형상계수의 값이 1.0 이면 원으로, 형상계수의 값이 1.13 이면 정사각형으로 폴리곤을 구별할 수 있기 때문에 형상계수와 개개의 면적으로 블록지번(23)의 형태를 구분하여 야적할 조립블록(11)의 형태와 블록지번(23)의 형태가 서로 일치하는지 여부를 사전에 검사하여 조립블록(11)의 현장배치를 계획적이고 효율적으로 수행할 수 있는 또 다른 효과가 있다. In the present invention, the shape of the polygon is calculated using the ratio of the area and the circumference, the shape of the polygon in order to classify the shape of the block number 23

If the shape factor value is 1.0 and the shape factor value is 1.13, the polygons can be distinguished by a square. Therefore, the shape of the block number 23 can be divided into shape factors and individual areas. By checking whether the shape of the assembly block 11 to be stacked and the shape of the block number 23 match with each other in advance, there is another effect that the site placement of the assembly block 11 can be carried out intentionally and efficiently.

The distance measurement between the transporter 17 and the transporter between the transporter or the branch is used by calculating the distance between the polygon center points, and when measuring the distance from the road network, the Euclidean distance is used.

The database 47 has a unique number, shape coefficient, and light and position coordinate information for each polygon, so that the transporter 17, which is a moving means, moves up and down the assembly block 11 (23). By receiving the accurate current position value of) by GPS 41 and displaying it on the screen of the electronic map 26, the visualization effect for the user's convenience can be expected.

In particular, in the present invention, the block number 23 is designed as a text file so as to have a TM coordinate value, so that in the transporter 17 and the control center 46, which are means of transportation, the positions of more than 3,000 block number 23 are positioned. Can be expressed accurately.

As such, the block number of the electronic map includes the area number, the number of the block number, and management information. The block number of the electronic map is represented in various polygonal polygonal forms according to the information, and the information of the polygon is stored in a database. At this time, the database stores the unique number, shape coefficient, and diameter / position coordinates for each polygon.

As described above, the present invention includes an electronic map 26, which is designed to check the position tracking of the moving means such as the transporter 17 and the operation of the up and down operation of the assembly block 11, so that each transporter ( In addition to the existing precision position tracking methods that require complex inertial navigation devices and algorithms, such as vehicle speed sensors, accelerometers, and gyros, they can replace thousands of block numbers (23) and several tens of transporters. (17) It is very simple and easy to collect accurate location information and has the feature that it can be used for driving control.

Information about the assembly block 11 is input as text information through SMS (Short Message Service) short message service of the wireless terminal 44 connected to the centralized control unit 43 of the transporter 17, input The size of the character information is 80 bytes, the unique number of the assembly block 11, the serial number of the ship on which the assembly block 11 is mounted, the unique number of the block number 23 on which the assembly block 11 is placed, and the transporter. Information on the unique number of (17) and the like is included.

The means for controlling the vehicle means that the management center efficiently controls the operation of the vehicle by the information of the transmitted assembly block, the information of the vehicle, and the movement path of the assembly block. First, the transporter 17 intends to proceed. If it is expected that the road network 22 will intersect with another transporter 17 at the same time, if it is determined that the crossing progress occurs by analyzing the moving position, the expected route and time of the transporter 17, While operating the alarm of the corresponding transporter 17, a graphic message of the route movement of the road network 22 is displayed on the screen of the computer while drawing attention to the driver and the information of the database 47 in the control sensor 46 is displayed. Radio calls to deliver the command to adjust the route and sequence.

In more detail, the road network is composed of a node 28 and a path 29 having a unique number together with the path center point 27, and the path is unique to the TM longitude coordinate value and the length of the path 29. It has a feature that contains a value.

The transporter reads the block number 23 currently located, the unique number of the mounted assembly block 11, the current location or the unique number of the road network 22, and the output signal of the load detection sensor 14, and determines the assembled block ( 11) When the up and down work information of the control center 46 is transmitted from the central processing unit of the control center 46 to the wireless terminal 44, the central processing unit in real time of the current transport information of the entire transporter 17 and the assembly block 11 Collect and check whether the transport block 17 has completed the up and down transport of the assembly block 11 to check whether there is a crossover path with the transport path of another transporter 17, and the same road network When the crossing progress is expected in the path of (22), the transfer priority of the transporter is determined on the path where the crossing is expected to be notified, and the corresponding transporter 17 is notified to adjust the route or the entry priority that is optimal for the operation. Could It is rocking.

As described above, the present invention prepares a progress road network of a vehicle equipped with an assembly block and a progress road network of another vehicle, calculates a current position, a traveling speed, and a time required for each vehicle, and analyzes it based on this. Therefore, when the crossing progress is expected, each vehicle is notified of this, and the data are transmitted, and at the same time, the priority of the vehicle is set to be controlled.

When the assembly block transferred by the moving means is placed on the designated block number, the load detection sensor automatically recognizes the dismounting of the assembly block from the moving means, and this information is transmitted to the control center via GPS. The setter compares the received assembly block information with the block number information and determines whether the assembly block is properly loaded and whether the correct position is placed.

As described above, according to the present invention, the load detection sensor 14 detects that the assembly block 11 is moved up and down to the block number 23 in the transporter 17, and then the polygon number is determined from the block number database. Through the procedure of searching, it is to search and recognize the specific block number 23 information.

The detection of the assembly block by the load sensor 14 synthesizes and amplifies the minute voltage signal of the lower sensor in the signal synthesis amplifier 31 and connects the output value to the input terminal 33 of the central processing unit to the memory. By comparing with the load value of the stored assembly block, it is automatically determined whether the assembly block is mounted or unloaded on the moving means.

In addition, as described above, the assembly block is stored in the block number and moved to the block number designated by the moving means, such as the location of the assembly block, the movement route, etc., all stored in a database, and such information is controlled through a network. It is provided to users who access the center. That is, all the departments related to the assembly block work can be connected to the control center through the network, and the control center provides real-time information on the assembly block to these access users.

The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims record.

As described above, the present invention separates the area in which the ship assembly block is stacked into a plurality of block numbers, and electronically maps them, and prepares the building blocks with the block numbers corresponding to the respective building blocks in preparation for the information of the block numbers and the building blocks. Since it is designed to move and accumulate, it is possible to increase the utilization of spatial information in the factory in which the assembly block is arranged, and to easily support the development of an integrated method for optimizing the arrangement of the assembly block.

In addition, the control center is equipped with an assembly block to control the path of the moving means to move to the designated block number, eliminating the problems caused by the narrow road network, and set the priority according to the information of the moving assembly block It is possible to efficiently transfer the assembly block by the.

In addition, the transmission of the assembly block information is also inputted and transmitted along with the information of the moving means, the process of submitting the operation management information, such as the location information of the assembly block and work information and the operator information by hand record was omitted, It can be used as an effective analysis tool for the assembly block transportation equipment and manpower allocation through transporter and operator's record of operation records.

In addition, since information on the means of transportation on which the building blocks are mounted is tracked / confirmed in real time by GPS and information about the building block is shared by the network, the work of the assembly block related department can be efficiently performed.

In addition, the assembly block up / down from the moving means is to be automatically recognized by the load sensor, it is possible to grasp the current position and the place of the assembly block in real time.

In addition, since the stowage position and the movement path of the assembly block are controlled by the management center, it is easy to identify and find the position to move the assembly block or the movement position to the next up and down, regardless of day or night.

Claims (3)

An electronic map input step of storing an accumulation area of an assembly block by precision GPS, and forming an electronic map combined with planar Cartesian coordinate values and stored in a central processing unit in a control center; An assembly block information transmission step of inputting information on an assembly block to be stacked into a control center through a short service of a wireless terminal connected to a centralized control device of a transportation means; An assembly block designation step of designating a loading position of the assembly block and a movement path of the assembly block by comparing the information of the assembly block received from the control center with information about the block number on the electronic map; Mounting of the assembly block to the moving means is automatically detected by the load sensor, and the recognition information of the load sensor, the position of the assembly block and the information of the moving means are received by the GPS to the control center and displayed on the screen of the electronic map. Displaying the assembly block position tracking step; A moving means control step of adjusting a moving path and an order of the transferring means by analyzing a moving position, an expected path, and a required time of the transferring means on which the assembly block is mounted; The assembly block is transported and stacked by the transfer means to the designated block number, and the getting off of the assembly block from the transfer means is sensed by the load monitoring sensor and transmitted to the control center by GPS, and the received information of the assembly block and the block An assembly block position checking step in which information of the number is prepared in the control center to determine whether the assembly block is placed and whether the exact position is placed; Connected by the control center and the network, the assembly block management method for a ship, characterized in that consisting of an information sharing step of sharing information about the current location, the movement path, the placement area of the assembly block. The method of claim 1, The block number of the electronic map has an area, a number, and management information of the block number, and is stored in a database in the form of a polygon represented by a polygon, and in the database, a unique number, a shape coefficient, a diameter / position of each polygon is stored in the database. Assembly block management method for ships characterized in that the coordinates are stored. The method of claim 1, The singular vehicle control step may include: contrasting a progress road network of a vehicle equipped with an assembly block with a progress road network of another vehicle; Calculating a current position, traveling speed, and time required for each of the moving means; When the movement path information of each means of transportation is analyzed and an intersection progress is expected, an alarm is activated for each means of movement and the database information of the control center is transmitted to the means of movement; And a command for adjusting a driving route and an entry order of the moving means is transmitted to each moving means.

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