Confidential topographic map transmission method, confidential topographic map transmission system and use method of confidential topographic map transmission system

A transmission method and topographic map technology, applied in transmission systems, digital transmission systems, and key distribution, can solve problems such as file loss, inability to meet the requirements of intelligent pipeline construction, and adding fixed constants

Active Publication Date: 2018-10-12
BC P INC CHINA NAT PETROLEUM CORP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] For network transmission of confidential topographic maps, manual acquisition and transmission are the main methods currently used. The disadvantages of this transmission method are that the transmission speed is slow, the cost is high, real-time transmission cannot be realized, and files are prone to loss, damage, theft and leakage, and cannot satisfy The need for intelligent pipeline construction; there is also the method of adding fixed constants. This transmission method is a simple translation of the confidential topographic map, which is easy to be cracked and leaked; there is also a method of directly changing the file name without any change in the content. This method has the lowest confidentiality and violates relevant regulations

Method used

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  • Confidential topographic map transmission method, confidential topographic map transmission system and use method of confidential topographic map transmission system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0079] Embodiment 1, a confidential topographic map transmission method, comprising:

[0080] Step 1, the coordinate data of the collection points formed by the coordinates of the 4 map root control points or the corner points of the picture frame or the corner points of the feature in the confidential topographic map data of the pipeline construction site surveying and mapping, and the surveying and mapping control points in the same coordinate system as the confidential topographic map The result table is stored in the sending security machine, respectively recorded as the first data and the second data, and the four collection points are respectively marked as No. 1 collection point to No. 4 collection point;

[0081] Step 2, in the sending security machine, the surveyed and mapped confidential topographic map is arbitrarily translated by a certain distance and arbitrarily rotated by a certain angle to form the translated topographic map data, which is recorded as the fourth...

Embodiment 2

[0120] Example 2, such as figure 1 As shown, a confidential topographic map transmission system includes:

[0121] Sending security machine, which is used to store the coordinate data of the collection points formed by the coordinates of the 4 map root control points or the corner points of the picture frame or the corner points of the feature in the confidential topographic map data of on-site surveying and mapping, and the surveying and mapping in the same coordinate system as the confidential topographic map The result table of control points and the confidential topographic map of surveying and mapping are arbitrarily translated by a certain distance and rotated by a certain angle to form the translated topographic map data, which are respectively recorded as the first data, the second data and the fourth data, and the first data and the second data The data is calculated as non-confidential data with a relative relationship, which is recorded as the third data, and the th...

Embodiment 3

[0133] Embodiment 3, a method of using a confidential topographic map transmission system, comprising:

[0134] Step S1, compiling the control point file, which is the second data;

[0135] Step S2, bringing the control point file to the construction site;

[0136] Step S3, taking the control point file to other office locations that need to receive confidential topographic maps;

[0137] Step S4, collect the coordinates of 4 collection points in the confidential topographic map at the construction site, and compile the collection point file, which is the first data;

[0138] Step S5, storing the sum of the second data and the first data in the sending security machine;

[0139] Step S6, calculating the relational data file in the sending security machine, which is the third data;

[0140] Step S7, in the sending security machine, the confidential topographic map is arbitrarily translated by a certain distance and rotated by a certain angle to form the translated topographi...

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Abstract

The invention discloses a confidential topographic map transmission method. The confidential topographic map transmission method comprises the steps that: field acquired confidential topographic map data and surveying and mapping control point outcome tables are stored in a sending encryption machine; the sending encryption machine calculates the relative relation of the two, and transmits relative relation data and translated topographic map data to a sending intermediate machine; the sending intermediate machine receives two kinds of data; a sending non-encryption machine receives the two kinds of data, and sends the two kinds of data to the internet; a receiving non-encryption machine receives the two kinds of data, and transmits the two kinds of data to a receiving intermediate machine; the receiving intermediate machine receives the two kinds of data, and transmits the two kinds of data to a receiving encryption machine; the receiving encryption machine receives the two kinds of data, performs calculation together with the surveying and mapping control point outcome tables stored in the receiving encryption machine so as to release the relative relation, and obtains acquisition point coordinates on the field acquired topographic map; and the original confidential topographic map is reduced by utilization of the acquisition point coordinates and the translated topographic map data. The invention further provides a confidential topographic map transmission system and a use method of the confidential topographic map transmission system. The confidential topographic map transmission method, the confidential topographic map transmission system and the use method of the confidential topographic map transmission system disclosed by the invention have the benefits that: the transmission speed is rapid; and data transmission is security.

Description

technical field [0001] The invention relates to the technical fields of pipeline construction and surveying and mapping, in particular to a transmission method, system and system usage method of a confidential topographic map. Background technique [0002] For network transmission of confidential topographic maps, manual acquisition and transmission are the main methods currently used. The disadvantages of this transmission method are that the transmission speed is slow, the cost is high, real-time transmission cannot be realized, and files are prone to loss, damage, theft and leakage, and cannot satisfy The need for intelligent pipeline construction; there is also the method of adding fixed constants. This transmission method is a simple translation of the confidential topographic map, which is easy to be cracked and leaked; there is also a method of directly changing the file name without any change in the content. This method has the lowest confidentiality and violates re...

Claims

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Application Information

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IPC IPC(8): H04L29/06H04L9/08
CPCH04L9/0897H04L63/0428
Inventor 陈瑞良陈雨杉黄丽张成郭书太丁睿明陈微王坤瑞刘立华刘长清王福东高剑锋方广杰石维东张灵芳
Owner BC P INC CHINA NAT PETROLEUM CORP
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