CN112819118A - Coded radar marker and identification method and equipment thereof - Google Patents
Coded radar marker and identification method and equipment thereof Download PDFInfo
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- CN112819118A CN112819118A CN202011642549.2A CN202011642549A CN112819118A CN 112819118 A CN112819118 A CN 112819118A CN 202011642549 A CN202011642549 A CN 202011642549A CN 112819118 A CN112819118 A CN 112819118A
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- 239000003550 marker Substances 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims abstract description 25
- 239000011358 absorbing material Substances 0.000 claims description 55
- 239000000463 material Substances 0.000 claims description 10
- 238000010521 absorption reaction Methods 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 230000003993 interaction Effects 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 230000015654 memory Effects 0.000 description 15
- 238000005516 engineering process Methods 0.000 description 8
- 230000008859 change Effects 0.000 description 5
- 230000005291 magnetic effect Effects 0.000 description 5
- 238000004590 computer program Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 230000003936 working memory Effects 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/06009—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking
- G06K19/06018—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking one-dimensional coding
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/06009—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking
- G06K19/06037—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking multi-dimensional coding
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Abstract
The invention aims to provide a radar marker capable of being coded and a recognition method and equipment thereof. The radar marker capable of being coded does not need an uneven structure and has no requirement on color, so that the radar marker can be applied to many fields and integrated in the environment and is not easy to be distinguished by naked eyes. The radar marker capable of being coded can realize that the effective coding length is prolonged, and the radar marker capable of being coded not only can be used for supplementary positioning, but also can be used as other various markers and used in occasions such as interpersonal interaction and the like.
Description
Technical Field
The invention relates to a radar marker capable of being coded and a recognition method and equipment thereof.
Background
The identification structure in the prior art is at least one group of convex or concave identification structure for charging pile identification, and the identification structure realizes the identification of the charging pile by observing the convex linearity with different widths through laser. The identification method is relatively easy to be interfered by the environment. And laser only discerns through the protruding linearity of observing the width and fills electric pile, has following shortcoming:
1. expressed eigenvalues are fewer;
2. the application scenes are few, and the method can only be applied to the charging pile;
3. the fault tolerance is low;
4. the effective coding is shorter;
5. without secret information.
Disclosure of Invention
The invention aims to provide a radar marker capable of being coded and an identification method and equipment thereof.
According to an aspect of the present invention, there is provided a radar marker that can be encoded, comprising:
each radar wave absorbing material (RAM) attached to the surface of the article at intervals, and each part of the surface of the article between each radar wave absorbing material and each radar absorbing material jointly forms a one-dimensional code recognized by a radar, wherein the one-dimensional code is used for being converted into a corresponding two-dimensional code.
Further, in the above-mentioned radar marker capable of being encoded, in the one-dimensional code: the radar wave absorbing materials are respectively and correspondingly identified as white lines, and the parts of the surface of the article between the radar wave absorbing materials are respectively and correspondingly identified as black lines.
According to another aspect of the present invention, there is also provided a method for identifying a radar marker that can be encoded, the method comprising:
attaching the radar wave absorbing materials to the surface of the article at intervals;
identifying a one-dimensional code formed by all parts of the surface of the article between each radar wave absorbing material and the radar absorbing material through a radar;
converting the one-dimensional code into a corresponding two-dimensional code;
and recognizing the character information in the two-dimensional code.
Further, in the above method, identifying, by the radar, a one-dimensional code composed of the radar wave absorbing material and the part of the surface of the article between the radar wave absorbing material, includes:
the radar correspondingly identifies each radar wave absorbing material as a white line in the one-dimensional code respectively;
and the radar correspondingly identifies all parts of the surface of the article between the radar absorption materials as black lines in the one-dimensional code respectively.
Further, in the foregoing method, converting the one-dimensional code into a corresponding two-dimensional code includes:
sequentially segmenting the one-dimensional code from left to right;
and sequentially converting each section of the one-dimensional code into each line of the two-dimensional code from top to bottom, wherein one section of the one-dimensional code corresponds to one line of the two-dimensional code.
Further, in the above method, sequentially segmenting the one-dimensional code from left to right includes:
and segmenting the one-dimensional code from left to right in sequence according to a preset width.
According to another aspect of the present invention, there is also provided an identification apparatus of a codeable radar marker, comprising:
the attaching device is used for attaching the radar wave absorbing materials (RAM) to the surface of the article at intervals;
the radar identification device is used for identifying a one-dimensional code formed by all parts of the surface of the article between each radar wave absorbing material and the radar absorbing material;
and the conversion device is used for converting the one-dimensional code into a corresponding two-dimensional code and identifying the character information in the two-dimensional code.
Further, in the above apparatus, the radar identifying device is configured to identify each of the radar wave absorbing materials as a white line in the one-dimensional code; and correspondingly identifying all parts of the surface of the article between the radar absorption materials as black lines in the one-dimensional code.
Further, in the above device, the converting means is configured to segment the one-dimensional code sequentially from left to right; and sequentially converting each section of the one-dimensional code into each line of the two-dimensional code from top to bottom, wherein one section of the one-dimensional code corresponds to one line of the two-dimensional code.
Further, in the above device, the converting means is configured to segment the one-dimensional code sequentially from left to right according to a preset width.
Compared with the prior art, the invention comprises the following steps: each radar wave absorbing material (RAM) attached to the surface of the article at intervals, and each part of the surface of the article between each radar wave absorbing material and each radar absorbing material jointly forms a one-dimensional code recognized by a radar, wherein the one-dimensional code is used for being converted into a corresponding two-dimensional code. The Radar Absorption Material (RAM) is combined with the surface of an article made of common materials to form a one-dimensional code recognized by a radar, the existing convex-concave identification is replaced, the one-dimensional code can be converted into a corresponding two-dimensional code subsequently, then the two-dimensional code coding and decoding technology is used for recognizing the thank you in the two-dimensional code, and the problems of low fault tolerance, short code, incapability of encryption and the like can be effectively solved. The radar marker capable of being coded does not need an uneven structure and has no requirement on color, so that the radar marker can be applied to many fields and integrated in the environment and is not easy to be distinguished by naked eyes. The radar marker capable of being coded can realize that the effective coding length is prolonged, and the radar marker capable of being coded not only can be used for supplementary positioning, but also can be used as other various markers and used in occasions such as interpersonal interaction and the like.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings:
FIG. 1 shows a schematic diagram of radar identification of a generic wall;
FIG. 2 shows a schematic representation of radar identification of a wall to which the encodable radar marker of the present invention is affixed;
FIG. 3 illustrates a one-dimensional code diagram according to an embodiment of the invention;
fig. 4 is a schematic diagram of a two-dimensional code according to an embodiment of the invention.
The same or similar reference numbers in the drawings identify the same or similar elements.
Detailed Description
The present invention is described in further detail below with reference to the attached drawing figures.
In a typical configuration of the present application, the terminal, the device serving the network, and the trusted party each include one or more processors (CPUs), input/output interfaces, network interfaces, and memory.
The memory may include forms of volatile memory in a computer readable medium, Random Access Memory (RAM) and/or non-volatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). Memory is an example of a computer-readable medium.
Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, computer readable media does not include non-transitory computer readable media (transient media), such as modulated data signals and carrier waves.
The invention provides a radar marker capable of being coded, which comprises:
each radar wave absorbing material (RAM) attached to the surface of the article at intervals, and each part of the surface of the article between each radar wave absorbing material and each radar absorbing material jointly forms a one-dimensional code recognized by a radar, wherein the one-dimensional code is used for being converted into a corresponding two-dimensional code.
The invention relates to a special radar marker, which is characterized in that after being identified by radar and converted by a special algorithm, the character information stored by the marker can be acquired by a two-dimensional code decoding technology. The rectangular frame portion of fig. 1 is a normal wall that appears as a continuous black line in the radar view; fig. 2 shows that the radar marker of the present invention appears as an intermittent black line in the radar viewing angle, wherein the black part of the intermittent black line is a wall part, and the white part is a radar wave absorbing material.
The Radar Absorption Material (RAM) is combined with the surface of an article made of common materials to form a one-dimensional code recognized by a radar, the existing convex-concave identification is replaced, the one-dimensional code can be converted into a corresponding two-dimensional code subsequently, then the two-dimensional code coding and decoding technology is used for recognizing the thank you in the two-dimensional code, and the problems of low fault tolerance, short code, incapability of encryption and the like can be effectively solved.
The radar marker capable of being coded does not need an uneven structure and has no requirement on color, so that the radar marker can be applied to many fields and integrated in the environment and is not easy to be distinguished by naked eyes.
The radar marker capable of being coded can realize that the effective coding length is prolonged, and the radar marker capable of being coded not only can be used for supplementary positioning, but also can be used as other various markers and used in occasions such as interpersonal interaction and the like.
As shown in fig. 3, in an embodiment of the radar marker capable of being encoded according to the present invention, in the one-dimensional code: the radar wave absorbing materials are respectively and correspondingly identified as white lines, and the parts of the surface of the article between the radar wave absorbing materials are respectively and correspondingly identified as black lines.
Here, by identifying the encodable radar marker as a corresponding one-dimensional code consisting of black and white line spaces, the accuracy of the subsequent conversion into a corresponding two-dimensional code can be ensured.
White lines which can be respectively correspondingly identified as corresponding widths according to the widths of the radar wave absorbing materials; the black lines identified as corresponding widths may correspond respectively to the widths of the various portions of the surface of the article between the radar-absorbing materials.
The invention also provides a method for identifying the codable radar marker, which comprises the following steps:
step S1, attaching each radar wave absorbing material (RAM) to the surface of the article at intervals;
step S2, identifying a one-dimensional code composed of all parts of the surface of the article between each radar wave absorbing material and the radar absorbing material through a radar;
step S3, converting the one-dimensional code into a corresponding two-dimensional code;
and step S4, recognizing the character information in the two-dimensional code.
In this case, the required text information can be loaded into the radar marker, from which the one-dimensional code shown in fig. 3 is then recognized by radar.
On the basis of fig. 4, the text information carried by the marker can be obtained by a two-dimensional code decoding technology. The invention can completely inherit the advantages of the two-dimension code: easy identification, fast identification, high fault tolerance rate, encryption and the like.
In an embodiment of the method for identifying an encodable radar marker according to the present invention, as shown in fig. 3, the step S2 of identifying a one-dimensional code composed of various radar wave absorbing materials and various portions of the surface of the article between the radar wave absorbing materials by radar includes:
the radar correspondingly identifies each radar wave absorbing material as a white line in the one-dimensional code respectively;
and the radar correspondingly identifies all parts of the surface of the article between the radar absorption materials as black lines in the one-dimensional code respectively.
Here, by identifying the encodable radar marker as a corresponding one-dimensional code consisting of black and white line spaces, the accuracy of the subsequent conversion into a corresponding two-dimensional code can be ensured.
White lines which can be respectively correspondingly identified as corresponding widths according to the widths of the radar wave absorbing materials; the black lines identified as corresponding widths may correspond respectively to the widths of the various portions of the surface of the article between the radar-absorbing materials.
In an embodiment of the method for identifying an encodable radar marker, step S3 is implemented by converting the one-dimensional code into a corresponding two-dimensional code, including:
step S31, segmenting the one-dimensional code from left to right in sequence;
step S32, sequentially converting each one-dimensional code segment into each line of the two-dimensional code from top to bottom, where one segment of the one-dimensional code corresponds to one line of the two-dimensional code.
Here, the one-dimensional code is sequentially segmented from left to right, and each segment of the one-dimensional code is sequentially converted into each row of the two-dimensional code from top to bottom, so that the accurate two-dimensional code can be obtained.
As shown in fig. 3, the one-dimensional code is segmented by a virtual line feed 1, and the virtual line feed does not exist on a real object.
Each line of the two-dimensional code converted from each one-dimensional code segment to the top down is shown in fig. 4, and the virtual line change 2 in fig. 4 corresponds to the virtual line change 1 in fig. 3.
In an embodiment of the method for identifying an encodable radar marker, step S31 is to segment the one-dimensional code sequentially from left to right, and includes:
and segmenting the one-dimensional code from left to right in sequence according to a preset width.
Here, as shown in fig. 3, the one-dimensional code is cut into segments with the same width by the virtual linefeed line 1, so as to ensure the accuracy of the two-dimensional code to be converted subsequently.
The present invention also provides an identification apparatus of a radar marker that can be encoded, comprising:
the attaching device is used for attaching the radar wave absorbing materials (RAM) to the surface of the article at intervals;
the radar identification device is used for identifying a one-dimensional code formed by all parts of the surface of the article between each radar wave absorbing material and the radar absorbing material;
and the conversion device is used for converting the one-dimensional code into a corresponding two-dimensional code and identifying the character information in the two-dimensional code.
In this case, the required text information can be loaded into the radar marker, from which the one-dimensional code shown in fig. 3 is then recognized by radar.
On the basis of fig. 4, the text information carried by the marker can be obtained by a two-dimensional code decoding technology. The invention can completely inherit the advantages of the two-dimension code: easy identification, fast identification, high fault tolerance rate, encryption and the like.
As shown in fig. 3, in an embodiment of the identification apparatus for an encodable radar marker according to the present invention, the radar identification device is configured to identify each radar wave absorbing material as a white line in a one-dimensional code; and correspondingly identifying all parts of the surface of the article between the radar absorption materials as black lines in the one-dimensional code.
Here, by identifying the encodable radar marker as a corresponding one-dimensional code consisting of black and white line spaces, the accuracy of the subsequent conversion into a corresponding two-dimensional code can be ensured.
White lines which can be respectively correspondingly identified as corresponding widths according to the widths of the radar wave absorbing materials; the black lines identified as corresponding widths may correspond respectively to the widths of the various portions of the surface of the article between the radar-absorbing materials.
In an embodiment of the identification device for the radar marker capable of being encoded according to the present invention, the conversion device is configured to segment the one-dimensional code sequentially from left to right; and sequentially converting each section of the one-dimensional code into each line of the two-dimensional code from top to bottom, wherein one section of the one-dimensional code corresponds to one line of the two-dimensional code.
Here, the one-dimensional code is sequentially segmented from left to right, and each segment of the one-dimensional code is sequentially converted into each row of the two-dimensional code from top to bottom, so that the accurate two-dimensional code can be obtained.
As shown in fig. 3, the one-dimensional code is segmented by a virtual line feed 1, and the virtual line feed does not exist on a real object.
Each line of the two-dimensional code converted from each one-dimensional code segment to the top down is shown in fig. 4, and the virtual line change 2 in fig. 4 corresponds to the virtual line change 1 in fig. 3.
In an embodiment of the identification device for the radar marker capable of being coded, the conversion device is configured to segment the one-dimensional code sequentially from left to right according to a preset width.
Here, as shown in fig. 3, the one-dimensional code is cut into segments with the same width by the virtual linefeed line 1, so as to ensure the accuracy of the two-dimensional code to be converted subsequently.
For details of embodiments of each device and storage medium of the present invention, reference may be made to corresponding parts of each method embodiment, and details are not described herein again.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and the equivalent technology, the present application is intended to include such modifications and variations as well.
It should be noted that the present invention may be implemented in software and/or in a combination of software and hardware, for example, as an Application Specific Integrated Circuit (ASIC), a general purpose computer or any other similar hardware device. In one embodiment, the software program of the present invention may be executed by a processor to implement the steps or functions described above. Also, the software programs (including associated data structures) of the present invention can be stored in a computer readable recording medium, such as RAM memory, magnetic or optical drive or diskette and the like. Further, some of the steps or functions of the present invention may be implemented in hardware, for example, as circuitry that cooperates with the processor to perform various steps or functions.
In addition, some of the present invention can be applied as a computer program product, such as computer program instructions, which when executed by a computer, can invoke or provide the method and/or technical solution according to the present invention through the operation of the computer. Program instructions which invoke the methods of the present invention may be stored on a fixed or removable recording medium and/or transmitted via a data stream on a broadcast or other signal-bearing medium and/or stored within a working memory of a computer device operating in accordance with the program instructions. An embodiment according to the invention herein comprises an apparatus comprising a memory for storing computer program instructions and a processor for executing the program instructions, wherein the computer program instructions, when executed by the processor, trigger the apparatus to perform a method and/or solution according to embodiments of the invention as described above.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned. Furthermore, it is obvious that the word "comprising" does not exclude other elements or steps, and the singular does not exclude the plural. A plurality of units or means recited in the apparatus claims may also be implemented by one unit or means in software or hardware. The terms first, second, etc. are used to denote names, but not any particular order.
Claims (10)
1. An encodable radar marker, comprising:
each radar wave absorbing material is attached to the surface of the article at intervals, and each part of the surface of the article between each radar wave absorbing material and the radar absorbing material jointly forms a one-dimensional code recognized by a radar, wherein the one-dimensional code is used for being converted into a corresponding two-dimensional code.
2. The codeable radar marker of claim 1 wherein the one-dimensional code is one of: the radar wave absorbing materials are respectively and correspondingly identified as white lines, and the parts of the surface of the article between the radar wave absorbing materials are respectively and correspondingly identified as black lines.
3. A method of identifying an encodable radar marker, comprising:
attaching the radar wave absorbing materials to the surface of the article at intervals;
identifying a one-dimensional code formed by all parts of the surface of the article between each radar wave absorbing material and the radar absorbing material through a radar;
converting the one-dimensional code into a corresponding two-dimensional code;
and recognizing the character information in the two-dimensional code.
4. The method of claim 3, wherein identifying, by radar, a one-dimensional code composed collectively of portions of the surface of the article between each radar-wave absorbing material and the radar-absorbing material comprises:
the radar correspondingly identifies each radar wave absorbing material as a white line in the one-dimensional code respectively;
and the radar correspondingly identifies all parts of the surface of the article between the radar absorption materials as black lines in the one-dimensional code respectively.
5. The method of claim 3, wherein converting the one-dimensional code into a corresponding two-dimensional code comprises:
sequentially segmenting the one-dimensional code from left to right;
and sequentially converting each section of the one-dimensional code into each line of the two-dimensional code from top to bottom, wherein one section of the one-dimensional code corresponds to one line of the two-dimensional code.
6. The method of claim 5, wherein segmenting the one-dimensional code sequentially from left to right comprises:
and segmenting the one-dimensional code from left to right in sequence according to a preset width.
7. An apparatus for identification of an encodable radar marker, comprising:
the attaching device is used for attaching the radar wave absorbing materials (RAM) to the surface of the article at intervals;
the radar identification device is used for identifying a one-dimensional code formed by all parts of the surface of the article between each radar wave absorbing material and the radar absorbing material;
and the conversion device is used for converting the one-dimensional code into a corresponding two-dimensional code and identifying the character information in the two-dimensional code.
8. The apparatus according to claim 7, wherein the radar identifying means is configured to identify each of the radar wave absorbing materials as a white line in a one-dimensional code; and correspondingly identifying all parts of the surface of the article between the radar absorption materials as black lines in the one-dimensional code.
9. The apparatus of claim 7, wherein the converting means is configured to segment the one-dimensional code sequentially from left to right; and sequentially converting each section of the one-dimensional code into each line of the two-dimensional code from top to bottom, wherein one section of the one-dimensional code corresponds to one line of the two-dimensional code.
10. The apparatus of claim 9, wherein the converting means is configured to segment the one-dimensional code sequentially from left to right by a preset width.
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| CN202011642549.2A CN112819118A (en) | 2020-12-31 | 2020-12-31 | Coded radar marker and identification method and equipment thereof |
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| US6529154B1 (en) * | 2000-03-16 | 2003-03-04 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Method and apparatus for reading two dimensional identification symbols using radar techniques |
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| CN111241857A (en) * | 2020-01-21 | 2020-06-05 | 广州尚臣电子有限公司 | Method based on conversion scanning between one-dimensional code and two-dimensional code |
| CN111239740A (en) * | 2020-01-20 | 2020-06-05 | 上海眼控科技股份有限公司 | Method and equipment for removing ray noise |
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| US6529154B1 (en) * | 2000-03-16 | 2003-03-04 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Method and apparatus for reading two dimensional identification symbols using radar techniques |
| CN106716448A (en) * | 2014-06-27 | 2017-05-24 | 英特尔公司 | Radar based interpretation of 3d codes |
| CN108629219A (en) * | 2017-12-14 | 2018-10-09 | 百富计算机技术（深圳）有限公司 | A kind of method and device of identification one-dimension code |
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