CN1635804A - A method for implementing invisible character transmission on short message communication platform - Google Patents
A method for implementing invisible character transmission on short message communication platform Download PDFInfo
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- CN1635804A CN1635804A CN 200310117718 CN200310117718A CN1635804A CN 1635804 A CN1635804 A CN 1635804A CN 200310117718 CN200310117718 CN 200310117718 CN 200310117718 A CN200310117718 A CN 200310117718A CN 1635804 A CN1635804 A CN 1635804A
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Abstract
This invention discloses a method for transmitting invisible character in message communication platform, which contains defining a six-bit coding and visible character corresponding table at message transmission end and receiving end, converting transmitted data (eight-bit coding) to six-bit coding, finding out visible character from the six-bit coding and visible character corresponding table, transmitting visible character to control center by message SMS, control center finding out corresponded six-bit coding according to received visible character form six-bit coding and visible character corresponding table, converting six-bit coding to eight-bit coding initial data by inverse operation, by said method to transmit invisible character and visible character with good safety.
Description
Technical field
The present invention relates to method, relate in particular to the transmission of invisible character by the note transmission character.
Background technology
Present note can only be advanced transmission to character visible, promptly only (0X00～0XFF) middle 0X20～interior character of 0X7F scope transmits to the ASCII character table, to general SMS, the content of its transmission all is a character visible, but when transmitting the information of some field such as GPS vehicle satellite fix with note, some invisible characters are just extremely important in information of vehicles, if only transmit the character visible part, then miss the information of very important invisible part, made the accuracy of information to ensure.
Summary of the invention
The object of the invention is to propose a kind of method that solves invisible character transmission.
Concrete implementation is:
A kind of on the short message communication platform, realize the invisible character of transmission method: the correspondence table that all defines six codings and character visible at the communication transmitting terminal and the receiving terminal of note at first; The data that will transmit (eight codings) change into six codings; Search six codings and find out corresponding character visible with the correspondence table of character visible; SMS is transferred to information centre with character visible by note; Information centre finds out six corresponding codings with the character visible of receiving by six codings and the correspondence table of character visible; Six codings are converted into the initial data of eight codings by inverse operation.
Described eight codings are adopted and are converted into six codings in the following method:
(1) adds two zero before per six of group octet coding binary sequence;
(2) one group of new number is separated into a new byte by per eight, not enough eight back is with eight on spot patch foot.
Described eight coded datas will transmitting are invisible character.
Described eight coded datas will transmitting also can be character visible.
Pass through said method, after invisible character is six codings through code conversion, the front two of each six coding all is zero, so the value of each six coding is all in the scope of these 64 values of 0X00～0X3F, converting them to visible symbol according to code conversion table (value in the table all is a character visible) sends by note SMS, just solved the transmission problem of invisible character, in addition, character visible also can adopt aforesaid way, what transmit in transmission course like this is not original coding, has solved the problem of plaintext transmission poor stability simultaneously.
Embodiment
At first one group of information of vehicles (binary data, eight codings) is carried out six code conversion:
A byte (A) of binary data is expression like this:
A7，A6，A5，A4，A3，A2，A1，A0
Eight coded representations of the A B C D... of one group of binary data are:
A7，A6，A5，A4，A3，A2，A1，A0、B7，B6，B5，B4，B3，B2，B1，B0、C7，C6，C5，C4，C3，C2，C1，C0、D7，D6，D5，D4，D3，D2，D1，D0...
Carry out six codings: promptly add two 0 in per six front and by new eight as a new byte, eight of last byte less thaies mend enough eight with 0, be:
0，0，A7，A6，A5，A4，A3，A2//0，0，A1，A0、B7，B6，B5，B4//0，0，B3，B2，B1，B0，C7，C6//0，0，C5，C4，C3，C2，C1，C0//0，0，D7，D6，D5，D4，D3，D2∥D1，D0...
Through each the byte front two after the conversion all is 0, so the span of a byte is in the scope of value of these 64 values of 0X00～0X3F.
To change each byte of back (0,0, b5, b4, b3, b2, among the b1, back 6 b5～b0 b0) and predefined code conversion table (following table) character visible carry out corresponding, b5, b4, b3 respectively corresponding first be listed as in three positions of each group.Three positions of each group in corresponding respectively first row of b2, b1, b0.Corresponding character in the table can be the character visible that is provided with arbitrarily, then forms one group of character visible by mapping like this.
| ?000 | ?001 | ?010 | ?011 | ?100 | ?101 | ?110 | ?111 | |
| ?000 | ?2E | ?2C | ?30 | ?31 | ?32 | ?33 | ?34 | ?35 |
| ?001 | ?36 | ?37 | ?38 | ?39 | ?41 | ?42 | ?43 | ?44 |
| ?010 | ?45 | ?46 | ?47 | ?48 | ?49 | ?4A | ?4B | ?4C |
| ?011 | ?4D | ?4E | ?4F | ?50 | ?51 | ?52 | ?53 | ?54 |
| ?100 | ?55 | ?56 | ?57 | ?58 | ?59 | ?5A | ?61 | ?62 |
| ?101 | ?63 | ?64 | ?65 | ?66 | ?67 | ?68 | ?69 | ?6A |
| ?110 | ?6B | ?6C | ?6D | ?6E | ?6F | ?70 | ?71 | ?72 |
| ?111 | ?73 | ?74 | ?75 | ?76 | ?77 | ?78 | ?79 | ?7A |
Character visible is passed to control centre by note SMS, and control centre looks into the code conversion table with the data of receiving, converts six codings to, by eight inverse operations of changeing six codings, converts six codings to original binary data.
The invention will be further described below in conjunction with instantiation:
As the data that will transmit be:
29 7f, 10 70 01 11 31 33 34 80 ef e3 20 (16 system)
Being converted to binary system is:
00101001?01111111?00010000?01110000?00000001?00010001?00110001
(29)?????(7f)?????(10?)?????(70)??????(01)???????(11)?????(31)
00110011?00110100?10000000?11101111?11100011?0010000
(33)????????(34)???????(80)???????(ef)????????(e3)????????(20)
Converting six to is encoded to:
00001010?00010111?00111100?00010000?00011100?00000000
(0a)??????(17)???????(3c)????????(20)???????(2c)??????????(00)
00000100?00010001?00001100?00010011?00001100?00110100?00100000
(04)?????(11)??????(0c)??????(13)?????(0c)??????(34)??????(20)
000011?1000111111?00100011?00001000?00000000
(0e)???????(3f)??????????(23)?????(08)??????????(00)
Look into conversion table and can get data:
38?4c?77?45?51?2e?32?46?41?48?41?6f?55?43?7a?58?36?2e
In this data corresponding A SCII code table:
“8LwEQ.2FAHAoUCzX6”
Vehicle sends this note to control centre, and middle the heart channel of Hang-Shaoyin inverse operation obtains data (29 7f, 10 7,001 11 31 33 34 80 ef e3 20).So just realized the transmission problem of invisible character, what transmit in transmission course simultaneously is not original coding, has solved the problem of plaintext transmission poor stability yet.
Aforesaid eight codings are converted into six Methods for Coding also can adopt existing other coding methods, now exemplifies two for example down:
(1) 64 system method
The data transaction of 16 systems is become the data of 64 systems.
2 byte conversion of the data of 16 systems become 64 systems with 3 byte representations.
For example: 16 system character strings: it is as follows that 27 00 29 41 7f ea b6 convert 64 system methods to:
To take out two bytes in order: 27 00
Its binary representation: 0,010 0,111 0,000 0000
Its 64 system is expressed as: 02 28 00
Take out two bytes again: 29 41
Its binary representation: 0,010 1,001 0,100 0001
Its 64 system is expressed as: 02 35 01
Take out two bytes again: 7f ea
Its binary representation: 0,111 1,111 1,110 1010
Its 64 system is expressed as: 07 63 42
Take out two byte: b6 00 (only remain a byte this moment, so fill a byte 00) again
Its binary representation: 1,011 0,110 0,000 0000
Its 64 system is expressed as: 11 24 00
So the data after the conversion are as follows: 02 28 00 02 35 01 07 63 42 11 24 00
(2) method of multibyte shuffling
Can adopt 6 byte conversion to become the method for 8 bytes.As the data number is not 6 multiple, can mend 0, makes it to become 6 multiple.
If any following data: 45 23 3e fe 40 00
Binary representation is as follows: 0,100 0101
0010??0011
0011??1110
1111??1110
0100??0000
0000??0000
Fetch data and fill in front by each binary data same position and can obtain 8 bytes for two 0:
00??000100???(04)
00??100110???(26)
00??011100???(1c)
00??001100???(0c)
00??001100???(0c)
00??101100???(2c)
00??011100???(1c)
00??110000???(30)
Claims (4)
1, a kind of on the short message communication platform, realize the invisible character of transmission method, it is characterized in that: the correspondence table that at first defines six codings and character visible; Eight coded datas will transmitting change into six codings; Search six codings and find out corresponding character visible with the correspondence table of character visible; By note character visible is transferred to control centre; Control centre finds out six corresponding codings with the character visible of receiving by six codings and the correspondence table of character visible; Six codings are converted into the initial data of eight codings by inverse operation.
2, as claimed in claim 1 a kind of on the short message communication platform, realize the invisible character of transmission method, it is characterized in that: described eight codings are adopted and are converted into six codings in the following method:
Add two zero before per six of (1) one group octet coding binary sequence;
(2) one group of new number is separated into a new byte by per eight, not enough for eight eight on spot patch foot.
3, as claimed in claim 1 a kind of on the short message communication platform, realize the invisible character of transmission method, it is characterized in that: described eight coded datas will transmitting are invisible character.
4, as claimed in claim 1 a kind of on the short message communication platform, realize the invisible character of transmission method, it is characterized in that: described eight coded datas will transmitting are character visible.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101840483B (en) * | 2009-03-17 | 2015-11-25 | 北大方正集团有限公司 | A kind of method and system of protecting computer document content |
| CN105163294A (en) * | 2015-08-04 | 2015-12-16 | 恒宝股份有限公司 | Cell broadcast message based channel compressing and decompressing method and device |
| CN105868194A (en) * | 2015-01-19 | 2016-08-17 | 阿里巴巴集团控股有限公司 | Methods and devices for text data compression and decompression |
| WO2017024978A1 (en) * | 2015-08-13 | 2017-02-16 | 阿里巴巴集团控股有限公司 | Short message transmission and reception method and device |
| CN108009139A (en) * | 2017-11-30 | 2018-05-08 | 重庆金美通信有限责任公司 | A kind of decoding method of invisible character data circulation character visible data flow |
| CN110266436A (en) * | 2019-06-26 | 2019-09-20 | 重庆金美通信有限责任公司 | A kind of binary data stream transmission method based on Beidou |
| CN113094609A (en) * | 2021-06-08 | 2021-07-09 | 北京泰迪熊移动科技有限公司 | Data processing method, device and storage medium |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6769061B1 (en) * | 2000-01-19 | 2004-07-27 | Koninklijke Philips Electronics N.V. | Invisible encoding of meta-information |
| DE10059941A1 (en) * | 2000-12-02 | 2002-06-06 | Akomo Gmbh | Control information transmission method and device uses short message service for transmitting control information to program-controlled device |
| GB2377532B (en) * | 2001-07-11 | 2005-06-29 | Sendo Int Ltd | Communications devices operable to electronically process text data for representing characters of a text message, and methods for operating such devices |
-
2003
- 2003-12-31 CN CNB2003101177180A patent/CN100435591C/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101840483B (en) * | 2009-03-17 | 2015-11-25 | 北大方正集团有限公司 | A kind of method and system of protecting computer document content |
| CN105868194A (en) * | 2015-01-19 | 2016-08-17 | 阿里巴巴集团控股有限公司 | Methods and devices for text data compression and decompression |
| CN105163294A (en) * | 2015-08-04 | 2015-12-16 | 恒宝股份有限公司 | Cell broadcast message based channel compressing and decompressing method and device |
| CN105163294B (en) * | 2015-08-04 | 2018-10-26 | 恒宝股份有限公司 | A kind of channel compressions and decompression method and its device based on Cell Broadcast CB short message |
| JP2018528533A (en) * | 2015-08-13 | 2018-09-27 | アリババ・グループ・ホールディング・リミテッドＡｌｉｂａｂａ Ｇｒｏｕｐ Ｈｏｌｄｉｎｇ Ｌｉｍｉｔｅｄ | Message transmission and reception method and apparatus |
| CN106454772A (en) * | 2015-08-13 | 2017-02-22 | 阿里巴巴集团控股有限公司 | Short message sending method and apparatus, and short message receiving method and apparatus |
| WO2017024978A1 (en) * | 2015-08-13 | 2017-02-16 | 阿里巴巴集团控股有限公司 | Short message transmission and reception method and device |
| EP3337200A4 (en) * | 2015-08-13 | 2019-01-23 | Alibaba Group Holding Limited | Short message transmission and reception method and device |
| CN106454772B (en) * | 2015-08-13 | 2019-11-26 | 阿里巴巴集团控股有限公司 | The sending, receiving method and device of short message |
| CN108009139A (en) * | 2017-11-30 | 2018-05-08 | 重庆金美通信有限责任公司 | A kind of decoding method of invisible character data circulation character visible data flow |
| CN110266436A (en) * | 2019-06-26 | 2019-09-20 | 重庆金美通信有限责任公司 | A kind of binary data stream transmission method based on Beidou |
| CN110266436B (en) * | 2019-06-26 | 2021-11-23 | 重庆金美通信有限责任公司 | Binary data stream transmission method based on Beidou |
| CN113094609A (en) * | 2021-06-08 | 2021-07-09 | 北京泰迪熊移动科技有限公司 | Data processing method, device and storage medium |
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| CN100435591C (en) | 2008-11-19 |
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