CN1182313A - High-efficiency transmission method of quotation information - Google Patents
High-efficiency transmission method of quotation information Download PDFInfo
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- CN1182313A CN1182313A CN 97116411 CN97116411A CN1182313A CN 1182313 A CN1182313 A CN 1182313A CN 97116411 CN97116411 CN 97116411 CN 97116411 A CN97116411 A CN 97116411A CN 1182313 A CN1182313 A CN 1182313A
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Abstract
The present invention includes the steps of: commodity sorting and establishing commodity mark data base with commodity order number, code and name at the sending end; sending the said base to receiving end; organizing changed quotation data at sending end; sending the changed quotation data in the code mode; regularly sending of all quotation data to avoid missing; and updating the data base in both sending and receiving ends while increasing or deleting some quotation. Commonly, the present invention sends only the changed effective data, and this reduce data transmission amount greatly and may be real-time transmitted by common transmission rate.
Description
The present invention relates to the transmission method of the quotation information of commodity, belong to the information transmission technique field.
The commodity market of indication of the present invention comprise stock market, forward quotations or the like.In present stock market transmission method, need to send the identification information of every stock, or stock code, or the identification information that defines voluntarily.A kind of method of using POCSAG coding transmission stock market in paging channel is for example arranged, and is to be each POCSAG address of stock regulation, when need send the market of certain stock, sends the home address of this stock earlier, sends concrete market again thereafter.This method adopts the common coding shown in the following table to transmit market:
| Stock 1 identification information | Stock 1 market | Stock 2 identification informations | Stock 2 market | …… | Stock n identification information | Stock n market |
This method is not noticed this point, and promptly the user need understand the market variation of all stocks, and the stock market variation can not only limit to a small amount of several stocks when trading volume is big, and at this moment every stock all being sent identification information will greatly influence transmission speed.For example said method is when the quotation information of 700 stocks of transmission, and only sending those quotation informations that changed needs 2 to 3 minutes at the soonest, and this transmission speed is difficult to satisfy user's real-time requirement.
In view of above-mentioned, the purpose of this invention is to provide a kind of method of high efficiency of transmission commodity quotation information.
The objective of the invention is to realize by the following method: a kind of high-efficiency transmission method that uses the quotation information that information transmitting apparatus and receiving system carry out the steps include:
(1) to the commodity numbering that sorts, set up the commodity sign information bank at transmitting terminal, the merchandise news in the storehouse comprises code, title and the ordering gained sequence number of each commodity;
(2) transmission of commodity sign information bank is copied to receiving terminal;
(3) at transmitting terminal the quotation information that changes is organized arrangement, extract the market changed, press the arrangement of commodity sequence number;
(4) market of the commodity that all are changed feelings (each commodity has a plurality of market) line by line, minimum by the final information bit that generates be criterion, opsition dependent coding, SEQ.XFER, the mask mode of encoding sends respectively;
(5) regularly send the market value of all commodity, as synchronous base, in case receiving terminal leaks some market of receipts with position encoded mode;
(6) if increase or when deleting some commodity, upgrade the commodity sign information bank of transmitting terminal, and be sent to receiving terminal.
Below in conjunction with embodiment the present invention is elaborated.
The present invention is example to use information transmitting apparatus and receiving system to transmit stock market information, and said herein dispensing device and receiving system are meant paging centers and beep-pager.Its method step is:
(1) to all stocks numbering that sorts, sets up the stock storehouse, comprise the information such as sequence number, code, title of every stock in the storehouse at transmitting terminal.During the ordering numbering, the sequence number segmentation is got final product continuously, for example A-share is occupied one section continuous serial number space, and the B thigh occupies another section serial number space continuously.
(2) transmission of stock storehouse is copied to receiving terminal.After this transmitting terminal and receiving terminal will adopt the identification information of sequence number as stock.
(3) at transmitting terminal the stock market information that changes is organized arrangement, feelings are pressed the arrangement of stock sequence number line by line.
(4) quotation information that all stocks are changed market one by one, minimum by the final information bit that generates be criterion, opsition dependent coding, SEQ.XFER, mask coded system send (these three kinds of modes see for details hereinafter and illustrate) respectively.
(5) regularly send the market value of all stocks, as synchronous base, in case receiving terminal leaks some market of receipts with position encoded mode;
(6) when increasing or delete stock, upgrade the stock storehouse of transmitting terminal and receiving terminal simultaneously.
The invention is intended to guarantee correctly identify under the prerequisite of every stock, reduce the identification information of transmission stock as far as possible, its core is to adopt position encoded transmission stock market, it sorts all stocks continuously as far as possible numbers, like this when sending the market of a collection of continuous stock, only need to send the sequence number of initial stock, the market that send every stock then in proper order get final product.That is adopted is position encoded as shown in the table.
| Initial stock sequence number | Stock 1 market | Stock 2 market | …… | Stock n market |
Initial stock is by the initial stock sequence number sign that is sent, and the sequence number of follow-up stock can be calculated by following formula:
The sequence number of m stock=initial stock sequence number+m-1 (formula 1)
This method requires to determine the shared message length of market of every stock, or adopts fixed length, or indicates the length of these market in quotation information.Because have only initial stock sequence number to need to send in the stock sequence number, therefore the stock when a collection of transmission is many more, the stock identification information of being saved is also just many more.
After the requirement of the quotation information of considering only to send those stocks that changed, the present invention can adopt the mask shown in the following table to encode to transmit stock market, promptly add a string binary code that is called mask after initial stock sequence number.Put 1 on the i position of mask, expression changes and is sent out from the market of i stock of initial stock, puts 0 this stock market no change of expression, is not sent out.
The pairing stock sequence number of market is determined by following formula in the mask coding, and wherein k is k and puts 1 mask (i.e. k market), and i is its position in mask.
The stock sequence number of k market=initial stock sequence number+i-1 (formula 2)
From the above, position encoded form is: the sequence number of initial commodity, and the market value of commodity 1, the market value of commodity 2 ..., the market value of commodity n.Its characteristics are the same a kind of market value for the commodity of a collection of continuous sequence number, only send the sequence number of initial commodity, have avoided sending the sequence number of other commodity, thereby have improved transmitting efficiency.
The form of mask coding is: the sequence number of initial commodity, represent a string binary code whether the market value of each commodity changes, the market value of the 1st vicissitudinous commodity, the market value of the 2nd vicissitudinous commodity,, the market value of n vicissitudinous commodity.Be characterized in introducing mask on position encoded basis, this mask represents which market changes in the continuous commodity of a collection of sequence number, and which does not change, thereby only sends the market value changed.
Position encoded as for when adopting, when adopt the mask coding, mainly be to determine according to the information bit whether the market information needed position that does not change is less than mask, less as if the market information needed position that does not change, then adopt position encoded; Otherwise adopt the mask coding.
Secondly, when the stock that changes in continuous SEQ.XFER space is more independent, (do not change) with the stock market of the adjacent sequence number of this stock, the present invention adopts SEQ.XFER (with aforementioned common coding) transmission stock market, and promptly every stock is sent out sequence number earlier and re-issued feelings.The form of SEQ.XFER is: the market value of the sign of stock 1, stock 1, and the market value of the sign of stock 2, stock 2 ..., the market value of the sign of stock n, stock n.
That receiving terminal receives is position encoded, after the information of mask coding, SEQ.XFER mode, respectively according to formula 1, formula 2 and the corresponding sequence number of market value that directly calculated by sending out sequence number, market are deposited in the stock that sequence number identifies.
Characteristics below in conjunction with stock information illustrate principle of the present invention.
The identification information of stock (as stock code, stock name etc.) has suitable stability, does not change basically.Along with the continuous growth of stock quantity, identify single stock needs increasing information bit isolatedly.And the user is concerned about the most is the market category information of real-times such as price, volume of business.Institute thinks the real-time stock market service that provides should reduce the transmission of stock identification information as far as possible.
The coding of stock code has suitable noncontinuity, and when directly adopting stock code as identification information, the deployed position code efficiency is not high, thus be necessary the stock ordering, with every stock of piecewise continuous sequence number sign.
The present invention utilizes the continuity of sequence number, and deployed position coding and mask are encoded, and the traffic volume of stock identification information is reduced to minimum degree.According to the situation of change of stock market, suitably adopt SEQ.XFER to send those isolated stock markets that changes simultaneously.
The present invention sets up synchronous base by the market of all stocks of timed sending, has reduced receiving terminal and has leaked the influence of receiving the inactive stock market.
The present invention only transmits those basically the effective information that changes has taken place, so significantly reduced transinformation, has improved real-time, can satisfy user's real-time requirement with general transmission rate.For example in paging channel, the method that adopts the present invention to propose on the POCSAG basis of coding is 700 B shareBs equally, adopts same baud rate, real-time can be brought up to 1 minute.
The present invention is applicable to various communication channels, as paging, subcarrier, teletext or the like, and is applicable to the transmission of the of a great variety and demanding quotation information of real-time of extensive stock.
Claims (2)
1. a high-efficiency transmission method that uses the quotation information that information transmitting apparatus and receiving system carry out the steps include:
(1) to the commodity numbering that sorts, set up the commodity sign information bank at transmitting terminal, the merchandise news in the storehouse comprises code, title and the ordering gained sequence number of each commodity;
(2) transmission of commodity sign information bank is copied to receiving terminal;
(3) at transmitting terminal the quotation information that changes is organized arrangement, extract the market changed, press the arrangement of commodity sequence number;
(4) market of the commodity that all are changed feelings line by line, minimum by the final information bit that generates be criterion, opsition dependent coding, SEQ.XFER, the mask mode of encoding sends respectively;
(5) regularly send the market value of all commodity, as synchronous base, in case receiving terminal leaks some market of receipts with position encoded mode;
(6) if increase or when deleting some commodity, upgrade the commodity sign information bank of transmitting terminal, and be sent to receiving terminal.
2. the high-efficiency transmission method of quotation information as claimed in claim 1 is characterized in that:
Described position encoded form is: the sequence number of initial commodity, and the market value of commodity 1, the market value of commodity 2 ..., the market value of commodity n;
The form of described SEQ.XFER is: the market value of the sign of commodity 1, commodity 1, and the market value of the sign of commodity 2, commodity 2 ..., the market value of the sign of commodity n, commodity n;
The form of described mask coding is: the sequence number of initial commodity, represent a string binary code whether the market value of each commodity changes, the market value of the 1st vicissitudinous commodity, the market value of the 2nd vicissitudinous commodity,, the market value of n vicissitudinous commodity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97116411 CN1182313A (en) | 1997-09-10 | 1997-09-10 | High-efficiency transmission method of quotation information |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97116411 CN1182313A (en) | 1997-09-10 | 1997-09-10 | High-efficiency transmission method of quotation information |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1182313A true CN1182313A (en) | 1998-05-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97116411 Pending CN1182313A (en) | 1997-09-10 | 1997-09-10 | High-efficiency transmission method of quotation information |
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| Country | Link |
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| CN (1) | CN1182313A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005062521A1 (en) * | 2003-12-22 | 2005-07-07 | See Infonet Co., Ltd. | Trusted system and method for listed company transfer public statements |
-
1997
- 1997-09-10 CN CN 97116411 patent/CN1182313A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005062521A1 (en) * | 2003-12-22 | 2005-07-07 | See Infonet Co., Ltd. | Trusted system and method for listed company transfer public statements |
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