Paper and electricity chart drawing equipment and chart drawing method

Abstract

The invention belongs to the technical field of marine navigation, and discloses a paper electricity chart drawing device and a chart drawing method. The paper and electricity chart drawing equipment comprises a touch control workbench and an electromagnetic pen, the touch control workbench comprises a control main board, an electromagnetic touch control module and a display screen, after a paper chart is laid on the display screen, the paper chart and an electronic chart are displayed in an overlapped mode, when the electromagnetic pen is adopted to leave plotting handwriting on the paper chart, the electromagnetic pen sends a signal to the electromagnetic touch control module, and the control main board controls the electromagnetic touch control module to display the plotting handwriting. The electromagnetic touch module receives a signal of the electromagnetic pen and transmits the signal to the control mainboard, the control mainboard sends image data to the display screen, and then plotting handwriting on the paper chart is electronically displayed on the electronic chart, so that the operation habit of an original paper chart is reserved, synchronous drawing of the paper chart and the electronic chart can be achieved, and the drawing efficiency is improved. The workload of independently drawing the paper chart and the electronic chart is greatly reduced, the drawing time is shortened, errors caused by independently drawing the electronic chart are avoided, and the chart drawing accuracy is effectively improved.

Description

Technical Field

[0001] This invention relates to the field of marine navigation technology, and in particular to a paper-based electronic chart drawing device and a chart drawing method. Background Technology

[0002] Nautical charts are indispensable tools in navigation, and their creation plays a crucial role in ensuring navigational safety and efficiency. Currently, paper chart creation and electronic chart creation are separate processes. Typically, workers draw routes on paper charts with pencils, then manually input waypoints based on the route information to create an electronic chart and finalize the electronic route. This method suffers from drawbacks such as high workload, large plotting errors, and excessive time consumption.

[0003] Therefore, there is an urgent need to provide a paper-to-electronic nautical chart drawing device and a chart drawing method, so as to achieve the synchronous drawing of paper and electronic nautical charts without changing the paper chart operation habits, thereby reducing the workload and improving the accuracy of chart drawing. Summary of the Invention

[0004] The purpose of this invention is to provide a paper-electronic nautical chart drawing device and a nautical chart drawing method, so as to achieve the synchronous drawing of paper nautical charts and electronic nautical charts without changing the paper nautical chart operation habits, thereby reducing the workload of drawing and improving the accuracy of nautical chart drawing.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] This invention provides a paper-based electronic nautical chart drawing device, including a touch-sensitive workbench and an electromagnetic pen. The touch-sensitive workbench includes a control motherboard, an electromagnetic touch module, and a display screen. The display screen and the electromagnetic touch module are both communicatively connected to the control motherboard. The display screen is used to display an electronic nautical chart and to lay out a paper nautical chart, allowing the electronic nautical chart to be superimposed on the paper nautical chart. The electromagnetic pen is used to send signals to the electromagnetic touch module while drawing the paper nautical chart. The electromagnetic touch module is used to receive the signals from the electromagnetic pen and transmit them to the control motherboard. The control motherboard is used to send image data to the display screen to complete the drawing of the electronic nautical chart.

[0007] As an optional technical solution for paper-based nautical chart drawing equipment, the touch workbench also includes a capacitive touch module, which is communicatively connected to the control motherboard and connected in parallel with the electromagnetic touch module. The control motherboard is used to switch between enabling the capacitive touch module and the electromagnetic touch module.

[0008] As an optional technical solution for paper-based nautical chart drawing equipment, the touch workbench also includes a high-brightness display module located at the bottom of the display screen. The high-brightness display module is communicatively connected to the control motherboard and located between the electromagnetic touch module and the capacitive touch module. The high-brightness display module is used to adjust the brightness of the display screen.

[0009] As an optional technical solution for paper-based nautical chart drawing equipment, the touch worktable also includes a shielding component sandwiched between the capacitive touch module and the high-brightness display module.

[0010] As an optional technical solution for paper-based nautical chart drawing equipment, the display screen has a magnetic shell or a magnetic plate, and the touch worktable also includes a magnetic strip, which is magnetically fixed to the magnetic shell or the magnetic plate to clamp and fix the paper nautical chart.

[0011] And / or, the display screen has a display area and an interaction area, the display area is used to display the paper nautical chart, and the interaction area is used to display function buttons.

[0012] As an optional technical solution for paper-based nautical chart drawing equipment, the paper-based nautical chart drawing equipment also includes an automatic drawing device, which is mounted on the touch-screen workbench and is communicatively connected to the control motherboard. The automatic drawing device is used to automatically draw the paper-based nautical chart.

[0013] As an optional technical solution for paper-based nautical chart drawing equipment, the paper-based nautical chart drawing equipment also includes a chart table body, and the touch workbench is set on the chart table body. The chart table body is equipped with an information processing unit, which is used to collect target data during navigation and send it to the touch workbench.

[0014] As an optional technical solution for paper-based nautical chart drawing equipment, the chart table is equipped with a printer for printing navigation documents.

[0015] This invention provides a method for drawing nautical charts using a paper-based electronic nautical chart drawing device, comprising the following steps:

[0016] The display screen is operated to display the electronic nautical chart, and the paper nautical chart is placed on the display screen so that the electronic nautical chart is superimposed on the paper nautical chart;

[0017] The electromagnetic touch module is activated, the electromagnetic pen is used to draw the paper nautical chart, and the electronic nautical chart is simultaneously drawn on the display screen in cooperation with the electromagnetic touch module and the control motherboard.

[0018] As an optional technical solution for nautical chart drawing, before laying out the paper nautical chart, the display screen is operated to display the electronic nautical chart, and alignment lines are displayed on the edge of the electronic nautical chart. The paper nautical chart is then laid out so that the edge of the paper nautical chart is aligned with the alignment lines.

[0019] Beneficial effects:

[0020] This invention provides a paper-based electronic nautical chart drawing device, which includes a touch-screen workbench and an electromagnetic pen. The touch-screen workbench includes a control motherboard, an electromagnetic touch module, and a display screen. Both the display screen and the electromagnetic touch module are communicatively connected to the control motherboard. The display screen is used to display electronic nautical charts and to lay paper nautical charts on top of each other, allowing the electronic nautical charts to be superimposed on the paper nautical charts. The electromagnetic pen is used to send signals to the electromagnetic touch module while drawing the paper nautical charts. The electromagnetic touch module is used to receive the signals from the electromagnetic pen and transmit them to the control motherboard. The control motherboard is used to send image data to the display screen to complete the drawing of the electronic nautical charts. By utilizing a control motherboard and an electromagnetic touch module, electromagnetic touch control of the display screen is achieved. After a paper nautical chart is placed on the display screen, the paper chart and the electronic chart are displayed overlaid. When an electromagnetic pen leaves markings on the paper chart, the electromagnetic pen sends a signal to the electromagnetic touch module. The electromagnetic touch module receives the signal from the electromagnetic pen and transmits it to the control motherboard. The control motherboard then sends image data to the display screen, thereby electronically displaying the markings on the paper chart on the electronic chart. This method retains the original work habits of using paper charts while enabling simultaneous drawing of paper and electronic charts. It greatly reduces the workload of drawing paper and electronic charts separately, shortens the drawing time, and avoids the errors of drawing electronic charts separately, effectively improving the accuracy of chart drawing.

[0021] This invention provides a nautical chart drawing method using a paper-electronic nautical chart drawing device. The device displays an electronic nautical chart on a screen, and a paper nautical chart is placed on the screen so that the electronic nautical chart is superimposed on the paper nautical chart. An electromagnetic touch module is activated, and an electromagnetic pen is used to draw the paper nautical chart. With the cooperation of the electromagnetic touch module and the control motherboard, the electronic nautical chart is simultaneously drawn on the screen. The operation is simple and the drawing is accurate. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the paper-based nautical chart drawing device provided in an embodiment of the present invention;

[0023] Figure 2 This is an internal schematic diagram of the touch workbench provided in an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of the touch workbench, automatic drawing device, and paper chart provided in the embodiments of the present invention;

[0025] Figure 4 This is a flowchart of the nautical chart drawing method provided in the embodiments of the present invention.

[0026] In the picture:

[0027] 1. Paper nautical charts;

[0028] 10. Touch worktable; 11. Control motherboard; 12. Electromagnetic touch module; 13. Display screen; 131. Display area; 132. Interaction area; 14. Capacitive touch module; 15. High-brightness display module; 16. Shielding component; 171. First control board; 172. Second control board; 18. Magnetic strip;

[0029] 20. Automatic drawing device; 21. Drawing component; 22. Crossbeam; 23. Guide rail;

[0030] 30. Chart table body; 31. Drawer; 32. Control unit; 33. Information processing unit; 34. Printer. Detailed Implementation

[0031] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0032] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0033] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0034] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0035] Before a voyage, nautical charts must be drawn to determine the route. A single voyage may require dozens of paper charts of different sea areas and scales. Before departure, staff need to measure, plot, and determine the route for all the paper charts to be used, which is a significant workload, increases preparation time, and manual drawing is prone to plotting errors, affecting navigation results. To address this, staff draw the route on paper charts with pencils, then manually enter waypoints based on the route information to create an electronic chart, thus completing the electronic route planning. Currently, the screen size used for electronic chart drawing is relatively small, limiting the size of the navigation monitoring screen and making it inconvenient for multiple people to operate and consult together simultaneously.

[0036] like Figures 1 to 3 As shown, this embodiment provides a paper-based electronic nautical chart drawing device, which includes a touch workbench 10 and an electromagnetic pen. The touch workbench 10 includes a control motherboard 11, an electromagnetic touch module 12, and a display screen 13. The display screen 13 and the electromagnetic touch module 12 are both communicatively connected to the control motherboard 11. The display screen 13 is used to display electronic nautical charts and provide data for the paper-based charts. Figure 1 Laying out the electronic nautical chart allows it to see through the paper nautical chart. Figure 1 The electromagnetic pen is used to draw on paper in an overlay display. Figure 1 At the same time, it sends a signal to the electromagnetic touch module 12, which is used to receive the signal from the electromagnetic pen and transmit it to the control motherboard 11. The control motherboard 11 is used to send image data to the display screen 13 to complete the electronic chart drawing.

[0037] Using the control motherboard 11 and the electromagnetic touch module 12, electromagnetic touch control of the display screen 13 is achieved, allowing the paper to be touched. Figure 1 After being laid on display screen 13, the sea of ​​paper Figure 1 Overlay display with electronic nautical charts, using an electromagnetic pen on paper nautical charts Figure 1 When the electromagnetic pen leaves its mark on the paper, it sends a signal to the electromagnetic touch module 12. The electromagnetic touch module 12 receives the signal from the electromagnetic pen and transmits it to the control motherboard 11. The control motherboard 11 then sends image data to the display screen 13, thereby displaying the paper. Figure 1 The plotting marks on the paper are displayed electronically on the electronic nautical chart, preserving the original paper nautical chart. Figure 1 Good homework habits can also achieve paper sea Figure 1The simultaneous creation of electronic nautical charts greatly reduces the need for paper charts. Figure 1 This reduces the workload of drawing electronic nautical charts separately, shortens the drawing time, avoids the errors that occur when drawing electronic nautical charts separately, and effectively improves the accuracy of nautical chart drawing.

[0038] Understandably, the tip of an electromagnetic pen is made of alloy and lead materials; the lead material is used in paper... Figure 1 The pen leaves its mark on the paper, and an alloy material is used to achieve touch control. An electromagnetic pen is an electromagnetic touch pickup device that features high-precision electromagnetic touch control, smooth writing, wear resistance, and compatibility with various paper types. Figure 1 It leaves pencil-like marks that can be erased with an eraser, thus enabling the completion of plotting on paper. Figure 1 Furthermore, it can use electromagnetic touch technology to electronically store the electromagnetic pen's handwriting into the touch workbench 10.

[0039] Furthermore, the touch workbench 10 also includes a capacitive touch module 14, which is communicatively connected to the control motherboard 11. The capacitive touch module 14 is connected in parallel with the electromagnetic touch module 12. The control motherboard 11 is used to switch between enabling the capacitive touch module 14 and the electromagnetic touch module 12.

[0040] The touch workbench 10 combines two touch technologies (electromagnetic touch and capacitive touch), using the control motherboard 11 to switch between enabling the electromagnetic touch module 12 and the capacitive touch module 14. When the electromagnetic touch module 12 is enabled, the display screen 13 is in electromagnetic touch mode, enabling rapid response and accurate handwriting pickup when used with an electromagnetic pen, allowing for seamless integration of electronic and paper nautical charts. Figure 1 The drawing is deeply integrated, and the drawing is done in one synchronous operation, which improves the drawing efficiency and accuracy. When the capacitive touch module 14 is enabled, the display screen 13 is in capacitive touch mode, which can support multi-finger touch, thereby meeting the needs of multi-person consultation. The two states can be switched freely, bringing a more user-friendly interactive experience.

[0041] Understandably, in electromagnetic touch mode, in order to avoid accidental touches caused by human body parts such as fingers and elbows when drawing flight paths, the touch workbench 10 can only recognize electromagnetic pen operations; in capacitive touch mode, the touch workbench 10 can recognize multi-point finger operations.

[0042] Furthermore, the touch workbench 10 also includes a high-brightness display module 15 located at the bottom of the display screen 13. The high-brightness display module 15 is communicatively connected to the control motherboard 11. The high-brightness display module 15 is located between the electromagnetic touch module 12 and the capacitive touch module 14. The high-brightness display module 15 is used to adjust the brightness of the display screen 13.

[0043] A high-brightness display module 15 is arranged between the electromagnetic touch module 12 and the capacitive touch module 14. The high-brightness display module 15 acts as an intermediate layer, providing isolation to prevent direct contact between the electromagnetic touch module 12 and the capacitive touch module 14, which could lead to performance degradation. It also improves display clarity, restores color, adjusts brightness, and ensures the smooth operation of the paper. Figure 1 It can be clearly displayed when overlaid with electronic nautical charts.

[0044] Optionally, the touch worktable 10 also includes a shielding component 16, which is sandwiched between the capacitive touch module 14 and the high-brightness display module 15. By arranging the shielding component 16 between the capacitive touch module 14 and the high-brightness display module 15, the shielding component 16 can effectively block the leakage of the electric field from the capacitor array, avoid capacitive coupling interference between adjacent circuits, ensure accurate detection of touch signals, and guarantee long-term stability.

[0045] In this embodiment, the shielding component 16 includes a glass substrate and an electromagnetic shielding film stacked together, with the glass substrate located between the electromagnetic shielding film and the capacitive touch module 14. The glass substrate is made of optical glass with anti-diffraction and anti-reflection properties, serving two purposes: firstly, to protect the screen and withstand the pressure of workers working at their desks; and secondly, to reduce the visibility of electronic charts through the glass onto the paper chart. Figure 1 Scattering during superposition increases transmission clarity and improves the transmission clarity of electronic nautical charts through paper nautical charts. Figure 1 The image overlay display effect.

[0046] In this embodiment, the high-brightness display module 15 is a standard 55-inch 16:9 high-brightness LCD screen. The touch workbench 10 combines the capacitive touch module 14, the electromagnetic touch module 12, and the high-brightness display module 15, with a glass substrate and electromagnetic shielding film filling the middle to form a complete high-precision dual-touch high-brightness display screen. The control motherboard 11 is a computer motherboard, which is connected to the high-brightness LCD screen via a VGA or HDMI interface. The computer motherboard is connected to the electromagnetic touch module 12 through a first control board 171, and the computer motherboard is connected to the capacitive touch module 14 through a second control board 172. The display screen 13 is combined with the high-brightness LCD screen, along with the computer motherboard, power supply, and other modules, to form a complete high-brightness dual-touch workbench.

[0047] The computer motherboard runs dual-touch workbench software, using the domestic Galaxy Kylin operating system and the domestic DM database. It uses the C / C++ programming language and has functions such as paper and electronic chart binding and alignment, chart rendition, automatic plotting device control, basic chart operation, navigation and radar target display, navigation calculation, navigation positioning, multi-person electronic chart consultation, navigation simulation, and navigation log recording.

[0048] See Figure 1 and Figure 3In this embodiment, the display screen 13 is provided with a display area 131 and an interaction area 132. The display area 131 is used to lay out the paper tray. Figure 1 The interactive area 132 is used to display function buttons. The large display screen 13 is designed to facilitate plotting operations and also meet the needs of multiple people discussing together.

[0049] To prevent paper sea Figure 1 The display screen 13 has a magnetic housing or magnetic plate, and the touch worktable 10 also includes a magnetic strip 18, which is magnetically fixed to the magnetic housing or magnetic plate to clamp and fix the paper tray. Figure 1 In this embodiment, the paper sea Figure 1 Each edge is equipped with a magnetic strip 18, and there are four magnetic strips 18 in total. The paper roll is fixed by magnetic attraction. Figure 1 It can prevent paper sea Figure 1 The offset and displacement mechanism also facilitates easy replacement of the paper tray. Figure 1 It is quick and easy to operate.

[0050] In electromagnetic touch control mode, the electronic nautical chart is displayed on the display screen 13 of the touch workbench 10 at its original scale. The high-brightness display module 15 is increased to enhance the brightness of the display screen 13, and the paper nautical chart is displayed. Figure 1 Lay it on the display screen 13, so that the paper sea Figure 1 Aligning with the electronic chart, the navigation monitoring and surrounding targets of the bright electronic chart are projected onto the paper nautical chart. Figure 1 Displayed on top of each other.

[0051] Using an electromagnetic pen with pencil function on a sea of ​​paper Figure 1 The precise mapping operation retains the habit of working on paper nautical charts while utilizing the touch-screen workbench 10 to simultaneously and accurately capture the mapping marks on paper charts, digitizing the plotting content of nautical charts, including points, lines, areas, and text, thus realizing the transformation of paper nautical charts into digital representations. Figure 1 Synchronous plotting with electronic nautical charts improves charting efficiency. Simultaneously, during navigation monitoring, highlighted electronic chart information, navigation monitoring information, radar target information, and other content are displayed alongside the paper chart above. Figure 1 Situational overlay is performed to achieve full-element navigation situation monitoring. An electromagnetic touch module 12 is designed to meet the size of the display screen 13, improving the resolution of the module's antenna array and employing a suitable bonding process to ensure the accuracy and smoothness of the large-size electromagnetic touch.

[0052] When staff need to use electronic nautical charts for comprehensive situational awareness and multi-person consultations, they can switch to capacitive touch mode. At this time, the paper chart can be removed. Figure 1The brightness of the electronic chart display is lowered to a range acceptable to the human eye. The electronic chart can be zoomed and panned by staff using multi-finger touch operation. Multi-touch in capacitive touch mode can create an electronic chart consultation sandbox on the touch workbench 10, supporting multiple staff to simultaneously browse, operate, consult, and make decisions on navigation monitoring, situation monitoring, and navigation replay on large-format electronic charts.

[0053] Optionally, the paper-based nautical chart drawing equipment also includes a chart table body 30, a touch workbench 10 is set on the chart table body 30, and an information processing unit 33 is provided inside the chart table body 30. The information processing unit 33 is used to collect target data during navigation and send it to the touch workbench 10.

[0054] The information processing unit 33 is responsible for collecting and processing navigation and radar target information, and sending the information to the touch screen console 10 so that the target information can be overlaid and displayed on the electronic nautical chart.

[0055] The paper-based nautical chart drawing equipment also includes an automatic drawing device 20, which is mounted on the touch-screen workbench 10 and is communicatively connected to the control motherboard 11. The automatic drawing device 20 is used to automatically draw paper-based nautical charts. Figure 1 After setting the flight path, place the sea of ​​paper on display screen 13. Figure 1 The automatic drawing device 20 can complete the paper drawing process. Figure 1 The automatic drawing function can draw multiple times consecutively, enabling batch drawing.

[0056] Specifically, the automatic drawing device 20 includes a drive structure, a drawing component 21, a crossbeam 22, and two guide rails 23. The two guide rails 23 are parallel and spaced apart. The crossbeam 22 is slidably engaged with each guide rail 23. The extension directions of the crossbeam 22 and the guide rails 23 are perpendicular to each other. The drawing component 21 is slidably mounted on the crossbeam 22. The drive structure is used to drive the drawing component 21 to move along the extension direction of the crossbeam 22 and to drive the crossbeam 22 to move relative to the guide rails 23. The touch worktable 10 has a rectangular table surface. The crossbeam 22 extends along the length direction of the rectangular table surface, and the guide rails 23 extend along the length direction of the rectangular table surface. The drawing component 21 includes a drawing pencil. The movement range of the drawing component 21 covers the table surface area of ​​the touch worktable 10. The automatic drawing device 20 utilizes high-precision digital control technology to automatically draw on paper according to the instructions received from the touch worktable 10. Figure 1 It can be used to draw points, lines, surfaces, and Chinese and English characters.

[0057] High-precision digital control technology utilizes a high-speed response servo electric mechanism, improves the industrial-grade linear module structure, and enhances the lead accuracy of the ball screw design to control the drawing device and achieve paper sea operation. Figure 1Automatic and batch drawing; taking into full account the requirements of vibration resistance, moisture resistance and dust prevention under marine conditions, the automatic drawing device 20 is designed in terms of structure and process, and the drawing guide rail, high-precision electric mechanism, drive device and limit device are modularly designed to meet the requirements of reliability and maintainability, while ensuring the accuracy and smoothness of drawing.

[0058] Optionally, the chart table body 30 includes a printer 34 for printing navigation documents; the printer 34 can be pulled out of the chart table body 30 for paper replenishment, maintenance, and other operations; the chart table body 30 also has a pull-out drawer 31 for storing paper documents. Figure 1 The chart table body 30 is equipped with a control unit 32, which includes a push-pull mouse and keyboard. The control unit 32 is embedded in the chart table body 30 in a drawer-type structure and is located above the drawer 31. Users can pull it out for use at any time.

[0059] It is understandable that the specific control logic of the information processing unit 33, the control motherboard 11, the automatic drawing device 20, and the printer 34 can be designed with reference to existing technologies, and will not be elaborated here.

[0060] In this embodiment, a touch-screen workbench 10 is arranged above the chart table body 30. Drawers 31, a printer 34, an information processing unit 33, and a control unit 32 are arranged below the chart table body 30. The control unit 32 is located on the upper part of the chart table body 30, below it. Drawers 31 are located on the left side of the chart table body 30, and the information processing unit 33 and printer 34 are located on the right side of the chart table body 30. The printer 34 is positioned higher than the information processing unit 33. To make it faster and more convenient for staff to find charts, at least four drawers 31 are designed to store paper charts. Figure 1 Other nautical documents; Printer 34 is a miniature printer, such as a miniature commercial printer with A4 paper single-sided, black and white printing function, used to print out nautical electronic documents such as voyage plans and tide tables.

[0061] The paper-based electronic nautical chart drawing device provided in this embodiment achieves paper-based chart drawing through electromagnetic touch technology and an electromagnetic pen. Figure 1 While leaving traces of the work on the paper chart, the original handwriting of the paper chart work is simultaneously digitized, deeply integrating the electronic chart work with the paper chart work, and performing simultaneous plotting work to improve efficiency; multi-point touch is realized through capacitive touch technology for multi-person consultation; batch and high-precision plotting of paper charts is realized by equipping an automatic plotting device 20; and an embedded printer 34 realizes automated printing output of nautical electronic documents such as tide tables and navigation plans.

[0062] like Figure 4As shown, this embodiment also provides a nautical chart drawing method using a paper-based electronic nautical chart drawing device, specifically including the following steps:

[0063] Step S1: Display the electronic nautical chart on screen 13 and lay out the paper nautical chart. Figure 1 On display screen 13, the electronic nautical chart is projected through the paper nautical chart. Figure 1 Displayed in an overlay format.

[0064] Laying out a sea of ​​paper Figure 1 Before that, the operation display screen 13 displays the electronic nautical chart (i.e., the electronic nautical chart binding is completed), and displays the alignment frame lines on the edge of the electronic nautical chart, and lays out the paper nautical chart. Figure 1 To make paper sea Figure 1 Align the edges with the alignment lines. The alignment lines can be displayed for reference when aligning the paper. Figure 1 Ensure the paper sea Figure 1 The placement is accurate and matches the position on the electronic chart, thus ensuring the accuracy of synchronous plotting.

[0065] In other embodiments, the alignment frame may not be displayed on the display screen 13, or specific reference lines may be designed on the outer periphery or edge of the display screen 13 to serve as a reference, thereby making the paper sea... Figure 1 It only needs to be aligned with the electronic nautical chart.

[0066] Specifically, the touch workbench 10 display screen 13 in the left display area 131 is in the same proportion as the paper sea. Figure 1 (Same size) Bound together and highlighted with electronic nautical charts, on which paper nautical charts are laid. Figure 1 The alignment frame is displayed on screen 13. The alignment frame is a highlighted red line at the edge of the electronic chart, used to assist in aligning the paper / electronic chart. After alignment, the paper chart is secured with magnetic strip 18. Figure 1 Not covered by paper sea Figure 1 The vertical strip on the right side of the obscured screen is the interactive area 132, which has functions such as electronic chart binding, paper / electronic chart calibration, chart measurement, waypoint entry, monitoring parameter setting, and capacitive / electromagnetic touch mode switching.

[0067] Step S2: Activate the electromagnetic touch module 12 and draw on the paper using an electromagnetic pen. Figure 1 And with the cooperation of the electromagnetic touch module 12 and the control motherboard 11, an electronic nautical chart is simultaneously drawn on the display screen 13.

[0068] In this embodiment, in the paper sea Figure 1 After the electronic nautical charts are completed in sync, the automated drawing device 20 can be used to automate the batch drawing of paper nautical charts. Staff will need to bind new electronic nautical charts and replace new paper charts. Figure 1After re-aligning the paper and electronic nautical charts, the touch-screen workbench 10 sends a route drawing command to the automatic plotting device 20 controller to perform the automatic plotting operation. After the plotting is completed, the user can simply replace the chart and repeat the same operation until all paper and electronic charts are used. Figure 1 All drawings have been completed.

[0069] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A paper-based nautical chart drawing device, characterized in that, The system includes a touch workbench (10) and an electromagnetic pen. The touch workbench (10) includes a control motherboard (11), an electromagnetic touch module (12), and a display screen (13). The display screen (13) and the electromagnetic touch module (12) are both connected to the control motherboard (11). The display screen (13) is used to display electronic nautical charts and to lay out paper nautical charts (1) so that the electronic nautical charts are superimposed on the paper nautical charts (1). The electromagnetic pen is used to send signals to the electromagnetic touch module (12) while drawing the paper nautical charts (1). The electromagnetic touch module (12) is used to receive the signals from the electromagnetic pen and transmit them to the control motherboard (11). The control motherboard (11) is used to send image data to the display screen (13) to complete the drawing of the electronic nautical charts.

2. The paper-based nautical chart drawing device according to claim 1, characterized in that, The touch workbench (10) also includes a capacitive touch module (14), which is communicatively connected to the control motherboard (11) and connected in parallel with the electromagnetic touch module (12). The control motherboard (11) is used to switch between enabling the capacitive touch module (14) or the electromagnetic touch module (12).

3. The paper-based nautical chart drawing device according to claim 2, characterized in that, The touch workbench (10) also includes a high-brightness display module (15) located at the bottom of the display screen (13). The high-brightness display module (15) is communicatively connected to the control motherboard (11) and located between the electromagnetic touch module (12) and the capacitive touch module (14). The high-brightness display module (15) is used to adjust the brightness of the display screen (13).

4. The paper-based nautical chart drawing device according to claim 3, characterized in that, The touch workbench (10) also includes a shield (16), which is sandwiched between the capacitive touch module (14) and the high-brightness display module (15).

5. The paper-based nautical chart drawing device according to claim 1, characterized in that, The display screen (13) has a magnetic shell or magnetic plate, and the touch worktable (10) also includes a magnetic strip (18), which is magnetically fixed to the magnetic shell or magnetic plate to clamp and fix the paper chart (1). And / or, the display screen (13) is provided with a display area (131) and an interaction area (132), the display area (131) is used to lay out the paper nautical chart (1), and the interaction area (132) is used to display function buttons.

6. The paper-based nautical chart drawing device according to claim 1, characterized in that, The paper-based nautical chart drawing equipment also includes an automatic drawing device (20), which is mounted on the touch workbench (10). The automatic drawing device (20) is connected to the control motherboard (11) and is used to automatically draw the paper-based nautical chart (1).

7. The paper-based nautical chart drawing device according to claim 1, characterized in that, The paper-based nautical chart drawing device also includes a chart table body (30), and the touch workbench (10) is set on the chart table body (30). The chart table body (30) is equipped with an information processing unit (33), which is used to collect target data during navigation and send it to the touch workbench (10).

8. The paper-based nautical chart drawing device according to claim 7, characterized in that, The chart table body (30) is equipped with a printer (34) for printing navigation documents.

9. A method for drawing nautical charts, characterized in that, The paper-based nautical chart drawing device as described in any one of claims 1-8 includes the following steps: The display screen (13) is operated to display the electronic nautical chart. The paper nautical chart (1) is placed on the display screen (13) so that the electronic nautical chart is superimposed on the paper nautical chart (1). The electromagnetic touch module (12) is activated, the paper nautical chart (1) is drawn using the electromagnetic pen, and the electronic nautical chart is drawn simultaneously on the display screen (13) in cooperation with the electromagnetic touch module (12) and the control motherboard (11).

10. The nautical chart drawing method according to claim 9, characterized in that, Before laying out the paper chart (1), the display screen (13) is operated to display the electronic chart and an alignment frame is displayed on the edge of the electronic chart. The paper chart (1) is then laid out so that the edge of the paper chart (1) is aligned with the alignment frame.

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