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Method for generating electronic channel chart based on Changjiang River standards

An electronic navigation map and production method technology, applied in directions such as road network navigators, can solve problems such as difficulty in directly converting electronic navigation map data sets, failure to follow digital hydrographic data transmission standards, etc., to protect intellectual property rights and legitimate rights and interests, Ensure high quality and maintain the effect of accuracy

Inactive Publication Date: 2011-06-15
长江南京航道局 +2
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AI Technical Summary

Problems solved by technology

The current waterway graphics files in CAD format do not follow the digital hydrographic data transmission standard, and it is difficult to directly convert them into the electronic waterway chart data set of the CJ57 standard

Method used

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  • Method for generating electronic channel chart based on Changjiang River standards
  • Method for generating electronic channel chart based on Changjiang River standards
  • Method for generating electronic channel chart based on Changjiang River standards

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Experimental program
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Embodiment Construction

[0058] See attached figure 1 , the production process of data collection → data processing and channel map editing → channel map review and channel map release → channel map application described in the system of the present invention means that the original data collection is completed on the channel survey ship and the collected data is preprocessed , and then send these data to the channel office database through the GPRS network; at the channel office, first process the data obtained from the channel ships, and then edit and generate ENC data or ER files according to the requirements of the S-57 standard to complete the electronic channel chart Digital production, and finally use the CJ-58 standard to check whether the ENC data conforms to the specifications, and the tested ENC data is sent to the audit and release center of the Waterway Bureau through the digital transmission network; the audit release center will audit the ENC data obtained from the database, and this is ...

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Abstract

The invention discloses a method for generating an electronic channel chart based on the Changjiang River standards, which is mainly based on the digital channel measurement data transmission standard of the Changjiang River, the digital channel measurement data verification standard of the Changjiang River and the electronic sea chart data protection scheme recommended by IHO (International Hydrography Organization), sets up a standardized electronic channel chart database of the Changjiang River by utilizing advanced computer network technology, data communication technology and geographic information processing technology, realizes the measurement and the management for channels over the Changjiang River, the generation of the electronic channel chart and the automation, integration and networking of the entire release process by means of the generation flow including data acquisition, data processing, editing of the channel chart, checking of the channel chart, release of the channel chart and application of the channel chart, and provide, in the form of browser, the latest electronic channel chart service for ships sailing on the Changjiang River, shipping related departmentsand enterprises and public institutions in time. The method has the obvious advantages of normative data format, complete data updating mechanism, mature business system, safe information protection mechanism, great advantage in popularization and the like.

Description

technical field [0001] The invention relates to a waterway map production system based on digital waterway measurement data of the Yangtze River, especially a production method of an electronic waterway map based on the Yangtze River standard. Departments, enterprises and institutions shall promptly provide the latest electronic waterway charts of the Yangtze River and their production methods, which belong to the field of computer intelligence technology or marine navigation. Background technique [0002] Currently, the three international organizations that are closely related to the development of global electronic charts are the International Maritime Organization (IMO), the International Hydrographic Organization (IHO) and the International Electrotechnical Commission (IEC). In the past ten years of development, a series of electronic chart norms and standards have been formulated, effectively coordinating and promoting the production and cooperation of electronic chart...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/32
Inventor 曹成顾网林周向丽董华赵德鹏李邵喜李源慧李超俞建林林海万大斌潘育明
Owner 长江南京航道局
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