CN1148914C - Method and equipment based on unidirectional RF broadcast for transmitting and receiving stock data - Google Patents
Method and equipment based on unidirectional RF broadcast for transmitting and receiving stock data Download PDFInfo
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- CN1148914C CN1148914C CNB021008213A CN02100821A CN1148914C CN 1148914 C CN1148914 C CN 1148914C CN B021008213 A CNB021008213 A CN B021008213A CN 02100821 A CN02100821 A CN 02100821A CN 1148914 C CN1148914 C CN 1148914C
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Abstract
The present invention discloses a stock data transmitting and receiving method based on one-way radio frequency broadcasts. The stock data transmitting and receiving method comprises the steps that stock data to be transmitted is classified to determine the transmitting priority and transmitting frequency of the stock data of different types so as to further determine the data change quantity of the stock data to be transmitted relative to the stock data closing price of the previous day according to the transmitting priority and the transmitting frequency; the data change quantity is packed according to an STKCODE protocol, and the type of the data change quantity is processed in a variable length mode when the data change quantity is packed; the data change quantity is described by minimal bit number capable of describing the data change quantity, and an STKCODE data package is packed according to a signaling protocol; a data backage is transmitted to a user receiving end through a radio frequency broadcasting device, and thus, the user receiving end obtains the stock data. The scheme of the present invention can add the transmitting bit number of the stock data to the utmost extent; therefore, the transmitting efficiency of the stock data can be increased to the utmost extent, and the receiving real-time performance of the stock data is enhanced.
Description
Technical field:
The present invention relates to a kind of method of sending and receiving of stock certificate data and the device that can realize this method.
Background technology:
Paging system provides unidirectional RF (RF) communication of the paging information from the transmitting station to the paging receiver usually.Typically, paging information is modulated on the carrier signal, and as a radiofrequency signal, sends to paging receiver by paging channel by the signaling protocol coding according to routine.Paging receiver receives, this signal of demodulation sign indicating number, recovering paging information, and this paging information is offered the user of paging receiver.Fast development along with global mobile communication net (GSM), code division multiple access two way traffics such as (CDMA), paging system no longer only merely sends paging information, carry out as a business but will send stock information step by step, stock information has become the important content of data communication.Yet, the method of sending and receiving of existing stock certificate data is owing to still adopt the standard of traditional information paging network Data Transport Protocol (TD/T 1053-2000) that stock certificate data is carried out encoding process in data transmission procedure, the inefficiency that makes the stock certificate data transmission can not satisfy the requirement of stock certificate data transmission real-time.Just upgraded one time market in the stock handset 2-3 that for example has minute, therefore can not adapt to the demand of numerous stock investers stock certificate data real-time and a large amount of informations.
Summary of the invention:
The object of the present invention is to provide the higher method of sending and receiving of a kind of stock certificate data efficiency of transmission based on the stock certificate data of unidirectional RF broadcast, and the device of realizing this method.
For achieving the above object, the method for sending and receiving of the stock certificate data based on unidirectional RF broadcast provided by the invention comprises:
(1) stock certificate data that will send is classified, obtain sorted stock certificate data;
(2) determine transmission priority, transmitting time and the transmission number of times of dissimilar stock certificate datas;
(3) according to transmission priority, transmitting time and the transmission number of times of stock certificate data, determine the stock certificate data that will send;
(4) definite stock certificate data that will send carries out packing data to this data variation amount according to stock information host-host protocol (STKCODE) with respect to the data variation amount of proxima luce (prox. luc) stock certificate data closing price, obtains the STKCODE packet; During according to this protocol packing, the type of data variable quantity is carried out elongated mode handle, this data variation amount is described with the minimum number of bits that can describe this data variation amount;
(5) the STKCODE packet is packed according to signaling protocol, then this packet is transmitted to user's receiving terminal by the radio-frequency (RF) broadcast net;
(6) radiofrequency signal of data receiver reception is carried out demodulation and obtain the STKCODE packet, this packet is oppositely decoded according to the STKCODE agreement, obtain data variation amount, and then obtain stock certificate data with respect to proxima luce (prox. luc) stock certificate data closing price.
Described method also comprises the step of setting up stock information host-host protocol (STKCODE), and this agreement comprises following field:
Verification and: the check digit that is used to deposit the STKCODE packet;
Variable length class type-word: be used to identify dissimilar STKCODE packets, the type that this word is a type specification unit description packet with one group of binary digit, when the type codes of packet exceeds the description scope of existing type specification unit, increase type specification unit, existing type specification unit is set to " 1 " entirely;
Length of field array: be used for the variable quantity of one group of stock certificate data that will send is described with the minimum number of bits of this data variation amount;
Content: the coding that is used to deposit dissimilar stock certificate datas.
The described step that the variable quantity of stock certificate data is carried out packing data according to the STKCODE agreement of above-mentioned steps (4) is:
(A1) determine the number and the stock certificate data type of the stock certificate data variable quantity that will pack, determine the variable quantity of the different stock certificate datas that number and the length of field array of the type specification unit of variable length class type-word will be described with this;
(A2) according to the stock certificate data variable quantity that will pack the length of field array is divided into several elements, and determines each stock certificate data variable quantity position in the length of field array;
(A3) determine to describe the minimum number of bits that each stock certificate data variable quantity needs;
The position of stock certificate data variable quantity in the length of field array that (A4) each need be sent and the minimum number of bits that needs constitute the numeric field data bag;
(A5) according to the type of the stock certificate data that will send, determine that corresponding data send form, according to the length of field array content of the stock certificate data that will send, variable length class type-word, length of field array is packed, determine then described packet verification and, at last with described numeric field data bag and verification and composition STKCODE packet.
Above-mentioned steps (A1) also comprises: the length of field array is divided into two kinds, a kind of for describing the aerial length of field array of the data relevant with price, a kind of for describing the about localization length array relevant with stock volume quantity, when sending stock certificate data, type to stock certificate data is judged, to select corresponding length of field array.
The present invention also provides a kind of sending and receiving device of the stock certificate data based on unidirectional RF broadcast, comprising:
Data send part: be used for various stock certificate data classifying packing, form the STKCODE bag, described packet and other numerical datas are carried out compound, compound data are generated signaling protocol by coding card, signaling protocol is launched by the radio-frequency (RF) broadcast net;
The Data Receiving part: be used for the data flow demodulation that obtains from described radio-frequency (RF) broadcast net, obtain composite data signal, therefrom obtain the STKCODE bag, being decoded by the STKCODE bag obtains stock market data and information data etc. again;
Wherein, described data sending part branch comprises:
Data acquisition facility: be used for stock certificate data is classified and obtained the stock certificate data that needs send;
Memory: be used for the classified stock data that will send that the store data deriving means obtains;
Send configurator: be used for the grouped data that leaves memory in is provided with transmission priority, sends zero-time, concluding time, transmission number of times;
The STKCODE controller of packing: according to all needs send grouped datas priority, send zero-time, concluding time, transmission number of times and determine which data current time should pack to, and control command is sent to the STKCODE packing device.
STKCODE packing device: according to the instruction of STKCODE packing controller, from memory, read the classified stock data, generate the STKCODE bag, and send to radio frequency signaling protocol packing device;
Radio frequency signaling protocol packing device: receive the STKCODE bag, the STKCODE bag is packaged into radio frequency signaling protocol packet, and sends to radio frequency sending set;
Radio frequency sending set: radio frequency signaling protocol data-modulated is become analog data flow, be transformed to the radiofrequency signal of a certain frequency again, and send out by the radio-frequency (RF) broadcast net;
Described data reception portion branch comprises:
Radio-frequency transmitter: be used to obtain the also analog radio-frequency signal of rectification reception, obtain radio frequency signaling protocol data;
Radio frequency signaling decoder: be used for the radio frequency signaling protocol data after the demodulation are decoded, obtain stock information host-host protocol signal;
Stock information host-host protocol decoding/interaction controller: according to the stock information transmission that obtains
The agreement digital signal decoding goes out stock market data and information, management data and storage, according to the keyboard input, and the information that retrieval need show;
Keyboard: be used for receiving user's mutual input;
Display: be used to show stock market data or the information that to browse.
Because the present invention does not directly send stock certificate data, but the stock certificate data of determining to send is with respect to the data variation amount of proxima luce (prox. luc) stock certificate data closing price and the variable quantity between the transmission data, having significantly reduced like this needs carrying out packing data through aerial data quantity transmitted; The type of data variable quantity is carried out elongated mode to be handled, this data variation amount is described with the minimum number of bits that can describe this data variation amount, make that to leave the data bits that will send in the packet of regular length for more, adopt simultaneously the stock certificate data variable quantity is described with the minimum number of bits that can describe this data variation amount, can increase the transmission figure place of stock certificate data to greatest extent, therefore the present invention can improve the transmitting efficiency of stock certificate data to greatest extent, improves the real-time that stock certificate data receives.Other advantage of the present invention is with reference to the embodiment part.
Description of drawings:
Fig. 1 is the embodiment flow chart of the method for the invention;
Fig. 2 is that data of the present invention send part embodiment block diagram;
Fig. 3 is a Data Receiving part embodiment block diagram of the present invention;
Fig. 4 is the STKCODE decoding/interaction controller embodiment block diagram of Data Receiving part of the present invention.
Embodiment:
The invention will be further described below in conjunction with accompanying drawing.
How emphasis of the present invention is controlled to realize the interactive browser of local stock ticket data stock certificate data in the unidirectional RF broadcast system.
Because general unidirectional RF broadcast net is a narrowband communications networks, with POCSAG agreement (the telegraph code Special Adviser organizes a kind of paging protocol of formulation) is example, speed is generally 512 to-2400 (position/per second) bps, the present invention makes full use of above-mentioned existing radio frequency resource, in stock market's trading time period real-time reception stock certificate data and realization local interaction browse operation.
Fig. 1 is the embodiment flow chart of the method for the invention.Step 1 described in the figure need be finished at data sending terminal to step 6; Step 7 need be finished at data receiver to step 10.
Described according to Fig. 1, in step 1, need be to from external data source, obtaining data and classification storage, to do different processing according to the different qualities of data.The data of classification storage are divided into following classification: quotations on the stock market (containing futures, the exchange rate) data, information data, internet data and user management data.The quotations on the stock market data are divided stock code table, full price position index, full price position personal share, real-time index, real-time personal share, stock market's seniority among brothers and sisters, timesharing tendency, day K line, technical indicator again.The information data comprise information catalogue storehouse, userspersonal information's catalogue storehouse, real-time short message storehouse, advertising message storehouse.Customer management data draws together that the user receives information storehouse validity date, the user receives information authority storehouse, user capture stock trader phone storehouse, current system time.Internet data is downloaded site information data such as webpage, email by http protocol from the internet.Information catalogue storehouse, userspersonal information's catalogue storehouse and real-time short message storehouse, advertising message storehouse are managed in the directory file system mode that all kinds of computer operating systems provide.This example of user management addresses the user with the long logical user addresses of 64bit (bit) that is independent of the signaling address, has broken through existing signaling address designation user's physical restriction.With the POCSAG signaling is example, and the user of its sign is 21bit, promptly is no more than 2097152, and for nationwide broadcast system, such address size is not enough; Therefore, adopt the long logical user addresses of 64bit, enlarged number of users.
In order to finish the transmission task and better to finish the interactive browser function, in the information that data sending terminal sent, must carry a kind of special broadcast of stock information agreement (STKCODE), so that understand easily at receiving terminal in receiving terminal this locality.Because the particularity of unidirectional RF broadcast, this agreement is different from existing wired communication protocol, for example, ICP/IP protocol, in the broadcasting of unidirectional RF, data can be subjected to extraneous Communication Jamming, cause losing of data, therefore belong to the data communication of unidirectional unreliable connection.Simultaneously, owing to be the unidirectional RF narrow band communication, can not carry a lot of redundant informations as ICP/IP protocol.Therefore, the design of STKCODE agreement should be considered the unreliability of data communication, considers real-time again, can be more efficient than ICP/IP protocol.For with existing radio frequency coded system compatibility, the complete and existing radio frequency coding protocol of the bottom of STKCODE agreement is consistent.With POCSAG is example, POCSAG frame of a POCSAG address code band, and its valid data length is 300bits, two POCSAG frames of a POCSAG address code band, its valid data length is 620bits, and in such cases, the length of STKCODE bag is 300bits or 620bits.Therefore, this transmission means can be regarded as and on the existing standard host-host protocol, added one deck broadcast of stock information agreement.
Therefore, method of the present invention also comprises creates the STKCODE protocol package, carries out the STKCODE packing with described radio frequency signaling protocol.STKCODE agreement described in this example comprises following field and details:
Verification and: the check digit that is used to deposit the STKCODE packet;
Variable length class type-word: be used to identify dissimilar STKCODE packets, the type that this word is a type specification unit description packet with one group of binary digit, when the type codes of packet exceeds the description scope of existing type specification unit, increase type specification unit, existing type specification unit is set to " 1 " entirely; For example:
0010 is elongated class type-word, when the stock certificate data type code that will send adopts smaller or equal to 15 the time;
11110010 is elongated class type-word, when the stock certificate data type code that will send greater than 15, adopted smaller or equal to 30 o'clock;
111111110001 is elongated class type-word, when the stock certificate data type code that will send greater than 30, adopted smaller or equal to 45 o'clock.
Adopt the elongated type word code method can packed data.
Length of field array: be used for the variable quantity of one group of stock certificate data that will send is described with the minimum number of bits of this data variation amount;
Content: the coding that is used to deposit dissimilar stock certificate datas.
The present invention adopts above-mentioned agreement to carry out the packing coding of stock certificate data, can realize this little compression to the stock market data.The real-time reception of guaranteed stock market data.
Carry out step 2 at data sending terminal, determine transmission priority, transmitting time and the transmission number of times of dissimilar stock certificate datas; Then carried out for the 3rd step, check the existing transmission situation of all grouped datas,, therefrom select the only grouped data that needs transmission according to time and the priority that grouped data sends; Execution in step 4 then, from memory, read the grouped data of appointment, data are carried out the STKCODE protocol packing, during according to this protocol packing, the type of data variable quantity is carried out elongated mode handle, this data variation amount is described with the minimum number of bits that can describe this data variation amount.Then execution in step 5 is packaged into radio frequency signaling protocol bag with the STKCODE protocol package.Then execution in step 6 is modulated into analog data flow with the signaling protocol bag and sends by the radio-frequency (RF) broadcast net.
Step 7-10 finishes at data receiver, and step 7 is finished demodulation from radio-frequency (RF) broadcast net received RF signal, obtains digital data stream from analogue data.Then execution in step 8 is carried out signaling decoding with digital data stream, obtains the STKCODE packet.Then execution in step 9 is decoded to the STKCODE packet, obtains stock certificate data, information data, user management data etc., and is stored in the memory.Carry out execution in step 10 at last,, show stock or information according to customer requirements.
The described step that the variable quantity of stock certificate data is carried out adopting in the packing data reality according to the STKCODE agreement of above-mentioned steps (4) is:
(A1) determine the number and the stock certificate data type of the stock certificate data variable quantity that will pack, determine the variable quantity of the different stock certificate datas that number and the length of field array of the type specification unit of variable length class type-word will be described with this;
(A2) according to the stock certificate data variable quantity that will pack the length of field array is divided into several number, and determines each stock certificate data variable quantity position in the length of field array;
(A3) determine to describe the minimum number of bits that each stock certificate data variable quantity needs;
The position of stock certificate data variable quantity in the length of field array that (A4) each need be sent and the minimum number of bits that needs constitute the numeric field data bag;
(A5) according to the type of the stock certificate data that will send, determine that corresponding data send form, according to the length of field array content of the stock certificate data that will send, variable length class type-word, length of field array is packed, determine then described packet verification and, at last with described numeric field data bag and verification and composition STKCODE packet.
In order to handle the stock certificate data that sends more expeditiously, in this example the length of field array is divided into two kinds, a kind of for describing the aerial length of field array of the data relevant with price, a kind of for describing the about localization length array relevant with stock volume quantity, when sending stock certificate data, type to stock certificate data is judged, to select corresponding length of field array.
Below by with Communication in China industry standard YD/T 1053-2000-" information paging network Data Transport Protocol (POCSAG part) " in the comparison mentioned based on the stock compression method of BCDV (binary-coded decimal system) sign indicating number.
Tradition thinks that the BCDV sign indicating number is fully to have studied the characteristic of stock certificate data and the rate of change of stock numerical value, utilizes default symbol and variation characteristic symbol efficiently to describe the numeric data of stock in transmitting, and can reduce transmitted data amount, the raising efficiency of transmission.So use the BCDV sign indicating number, reduced to improving the cost of investment of the required cost of channel efficiency; On the other hand, under the situation that original system hardware need not change, can improve the efficiency of transmission of stock.
For example, N group stock valency is made of 4 stocks, and the numerical value n before upgrading is:
n＝[028.33，010.24，009.16，005.18]
Numerical value n+1 after the renewal is:
n+1＝[028.34，010.28，009.19，005.21]
Numerical value before and after relatively stock upgrades as seen, preceding 4 of preceding 3 stock numerical value of this group stock do not change, only back 1 variation, the front three of the 4th stock numerical value does not change, only back 2 figure places change.
Use binary coding, this group stock has 20 numerical digits (not transmitting decimal point), needs 80 bits altogether;
With BCDV coding, the numerical value after this group stock upgrades can be described as [4. 4,4. 8,4. 9,3. 21], is equivalent to 9 numerical digits, altogether need 36 bits;
Therefore this example straight binary coding transmission needs to use 80 bits; And use the BCDV coding transmission, and only need 36 bits, improved efficiency of transmission greatly.
If employing the present invention, for the same data [4,8,9,21] that need transmission, do following processing: the first step becomes 4 groups [4], [8], [9], [21] by 2 minimum power value scope division;
Second step was deposited their power sub-values [2,3,4,5] of 2 with array;
The 3rd each data that need send of step represent that with minimum power sub-value array index (radix is 0) and bit number 4 are designated as 0 under the minimum in [2,3,4,5] power sub-value array; 8 are designated as 1 under the minimum in [2,3,4,5] power sub-value array; 9 are designated as 2 under the minimum in [2,3,4,5] power sub-value array; 21 are designated as 3 under the minimum in [2,3,4,5] power sub-value array; Therefore the available binary representation of [4,8,9,21] (all cutting 1) is as follows: 00 (0) 11 (3) 01 (1) 111 (7) 10 (2) 1000 (8) 11 (3) 10100 (20);
Only need 22 bits represent this group data so altogether, compressed 72.5% with comparing, compressed 38.9% with representing to compare with BCDV with binary representation
Because among the present invention the length of field array is divided into aerial length of field array and about localization length array, with the bit number that the aerial length of field array of further minimizing takies, the element of aerial length of field array is deposited incremental portion by incremental order.Above routine power sub-value array [2,3,4,5] is an example, and the length field array is [2,1,1,1].
The stock market data mainly contain closing price yesterday, modern opening price, up-to-date valency, highest price, lowest price, Shen selling price, Shen buying price, volume of business, turnover etc.The variable quantity of calculative each bar stock market record have up-to-date valency and yesterday closing price the difference etc. of difference, Shen buying price and Shen selling price of difference, Shen buying price and up-to-date valency of difference, Shen selling price and up-to-date valency of difference, lowest price and up-to-date valency of difference, highest price and up-to-date valency of difference, modern opening price and up-to-date valency.
Provide the data record territory, according to the length of field array, the step that recording domain is packed is as follows:
Step 1: the minimum number bits of the stock certificate data variable quantity that calculating will send, for example 100 least number of bits is 7;
Step 2: in the length of field array, find out subscript greater than the minimum length of field array element of this number according to above-mentioned minimum number bits;
Step 3: the subscript of the minimum length of field array element of packing earlier, press the bit length of the array element of this subscript indication then and give this data record packing;
When receiving terminal unpacks, according to the length of field array recording domain is unpacked, step is as follows:
Step 1:, for example, [2,1,1,1] is reverted to [2,3,4,5] if aerial length of field array decompresses aerial length of field array;
Step 2: unpack the subscript of length of field array element, from the length of field array of decompress(ion), obtain representing the bit number of data according to subscript;
Step 3: the bit length that obtains in 2 set by step, unpack the data of corresponding bits length, these data are the recording domain data;
Based on described method of the invention described above and STKCODE agreement, this example adopts following concrete protocol architecture when sending dissimilar stock certificate datas:
1) full price position exponential scheme:
| Verification and 8bits | Elongated class type-word 4bits | Aerial length of field array 11bits | Article one, LSN 9bits | N bar record (n＞=1) |
Full price position index n bar record field comprises:
| The volume of business recording domain | Up-to-date valency recording domain | The highest price recording domain | The lowest price recording domain | Modern opening price recording domain | Yesterday the closing price recording domain | The turnover recording domain |
Full price position index volume of business recording domain comprises:
| The non-0 indicating bit 1bits of volume of business | Indicating bit is under 1 situation, has following field | |
| Index volume of business length of field array index 2bits | Volume of business (array element by the indication of index volume of business length of field array index provides) | |
Index up-to-date valency recording domain in full price position comprises:
| The non-0 indicating bit 1bits of up-to-date valency | Indicating bit is under 1 situation, has following field | |
| Price length of field array index 2bits | Up-to-date valency (array element by aerial length of field array index indication provides) | |
Full price position index highest price recording domain comprises:
| Highest price and up-to-date price differential are worth non-0 indicating bit 1bits | Indicating bit is under 1 situation, has following field | |
| Aerial length of field array index 2bits | Highest price and up-to-date price differential value (array element by aerial length of field array index indication provides) | |
Full price position index lowest price recording domain comprises:
| The non-0 indicating bit 1bits of up-to-date valency and lowest price difference | Indicating bit is under 1 situation, has following field | |
| Aerial length of field array index 2bits | Up-to-date valency and lowest price difference (array element by aerial length of field array index indication provides) | |
Index modern opening price recording domain in full price position comprises:
| Modern opening price and up-to-date price differential are worth non-0 indicating bit 1bits | Indicating bit is under 1 situation, has following field | |
| Aerial length of field array index 2bits | Modern opening price and up-to-date price differential value and 1bit sign bit (array element by aerial length of field array index indication provides) | |
Full price position index closing price yesterday recording domain comprises:
| Yesterday, closing price and up-to-date price differential were worth non-0 indicating bit 1bits | Indicating bit is under 1 situation, has following field | |
| Aerial length of field array index 2bits | Yesterday closing price and up-to-date price differential value and 1bit sign bit (array element by aerial length of field array index indication provides) | |
Full price position index turnover recording domain comprises:
| The non-0 indicating bit 1bits of turnover | Indicating bit is under 1 situation, has following field | |
| Index volume of business length of field array index 2bits | Turnover (array element by the indication of index volume of business length of field array index provides) | |
2) full price position personal share form
| Verification and 8bits | Elongated class type-word 4bits | Aerial length of field array 11bits | Article one, LSN 13bits | N bar record (n＞=1) |
The sequence number of n bar record is sequence number+1 of n-1 bar record
Full price position personal share n bar record field comprises:
| The volume of business recording domain | Up-to-date valency recording domain | The highest price recording domain | The lowest price recording domain | Shen buying price recording domain | Shen selling price recording domain | Modern opening price recording domain | Yesterday the closing price recording domain |
Full price position personal share volume of business recording domain comprises:
| The non-0 indicating bit 1bits of volume of business | Indicating bit is under 1 situation, has following field | |
| Personal share volume of business length of field array index 2bits | Volume of business (array element by the indication of personal share volume of business length of field array index provides) | |
Personal share up-to-date valency recording domain in full price position comprises:
| The non-0 indicating bit 1bits of up-to-date valency | Indicating bit is under 1 situation, has following field | |
| Aerial length of field array index 2bits | Up-to-date valency (array element by aerial length of field array index indication provides) | |
Full price position personal share highest price recording domain comprises:
| Highest price and up-to-date price differential are worth non-0 indicating bit 1bits | Indicating bit is under 1 situation, has following field | |
| Aerial length of field array index 2bits | Highest price and up-to-date price differential value (array element by aerial length of field array index indication provides) | |
Full price position personal share lowest price recording domain comprises:
| The non-0 indicating bit 1bits of up-to-date valency and lowest price difference | Indicating bit is under 1 situation, has following field | |
| Aerial length of field array index 2bits | Up-to-date valency and lowest price difference (array element by aerial length of field array index indication provides) | |
Personal share Shen, full price position buying price recording domain comprises:
| Shen buying price and up-to-date price differential are worth non-0 indicating bit 1bits | Indicating bit is under 1 situation, has following field | |
| Aerial length of field array index 2bits | Shen buying price and up-to-date price differential value and 1bit sign bit (array element by aerial length of field array index indication provides) | |
Personal share Shen, full price position selling price recording domain comprises:
| Shen selling price and up-to-date price differential are worth non-0 indicating bit 1bits | Indicating bit is under 1 situation, has following field | |
| Aerial length of field array index 2bits | Shen selling price and up-to-date price differential value and 1bit sign bit (array element by aerial length of field array index indication provides) | |
Personal share modern opening price recording domain in full price position comprises:
| Modern opening price and up-to-date price differential are worth non-0 indicating bit 1bits | Indicating bit is under 1 situation, has following field | |
| Aerial length of field array index 2bits | Modern opening price and up-to-date price differential value and 1bit sign bit (array element by aerial length of field array index indication provides) | |
Full price position personal share closing price yesterday recording domain comprises:
| Yesterday, closing price and up-to-date price differential were worth non-0 indicating bit 1bits | Indicating bit is under 1 situation, has following field | |
| Aerial length of field array index 2bits | Yesterday closing price and up-to-date price differential value and 1bit sign bit (array element by aerial length of field array index indication provides) | |
3) real-time exponential scheme
| Verification and 8bits | Elongated class type-word 4bits | Aerial length of field array 11bits | Article one, LSN 9bits | N bar record (n＞=1) |
The sequence number of n bar record is sequence number+1 of n-1 bar record
Index n bar record field comprises in real time:
| The volume of business recording domain | Up-to-date valency recording domain | The highest price recording domain | The lowest price recording domain |
Index volume of business recording domain comprises in real time:
| Carved the non-0 indicating bit 1bits of volume of business difference in current time volume of business and last a period of time | Indicating bit is under 1 situation, has following field | |
| Index volume of business length of field array index 2bits | Volume of business difference (array element by the indication of index volume of business length of field array index provides) | |
The up-to-date valency recording domain of index comprises in real time:
| The up-to-date valency of current time and last one up-to-date price differential constantly is worth non-0 indicating bit 1bits | Indicating bit is under 1 situation, has following field | |
| Aerial length of field array index 2bits | Up-to-date valency and yesterday closing price difference and sign bit (array element by the indication of aerial length of field array index provides) | |
It is 1 o'clock that up-to-date valency of current time and last up-to-date price differential of a moment are worth non-0 indicating bit, exists real-time index highest price recording domain to comprise:
| Current time highest price and last one is the non-0 indicating bit 1bits of highest price difference constantly | Indicating bit is under 1 situation, has following field | |
| Aerial length of field array index 2bits | Current time highest price and up-to-date price differential value (array element by aerial length of field array index indication provides) | |
It is 1 o'clock that up-to-date valency of current time and last up-to-date price differential of a moment are worth non-0 indicating bit, exists real-time index lowest price recording domain to comprise:
| Current time lowest price and last one is the non-0 indicating bit 1bits of lowest price difference constantly | Indicating bit is under 1 situation, has following field | |
| Aerial length of field array index 2bits | Up-to-date valency of current time and lowest price difference (array element by aerial length of field array index indication provides) | |
Index turnover recording domain comprises in real time:
| Were carved in current time turnover and last a period of time and hand over the non-0 indicating bit 1bits of amount of money difference | Indicating bit is under 1 situation, has following field | |
| Index volume of business length of field array index 2bits | Turnover difference (array element by the indication of index volume of business length of field array index provides) | |
4) real-time personal share form
| Verification and 8bits | Elongated class type-word 4bits | Aerial length of field array 11bits | Article one, LSN 13bits | N bar record (n＞=1) |
The sequence number of n bar record is sequence number+1 of n-1 bar record
The field that real-time personal share n bar record field comprises under the flag bit situation:
| Record mark is answered 2bits | Sign 0 | ?01bit | The continuous indeclinable entry number 2bits of individual company share quotations | ||
| ?11bit | Shen buying price recording domain | Shen selling price recording domain | |||
| Sign 1 | The volume of business recording domain | Shen buying price recording domain | Shen selling price recording domain | ||
| Sign 2 | The volume of business recording domain | Up-to-date valency recording domain | Shen buying price recording domain | Shen selling price recording domain | ||||||
| Sign 3 | The volume of business recording domain | Up-to-date valency recording domain | The highest price recording domain | The lowest price recording domain | Shen buying price recording domain | Shen selling price recording domain | ||||
Comprise at the Shen buying price recording domain that is masked as at 0,1 o'clock:
| Shen buying price recording domain presence bit indicating bit is 1 o'clock 1bits | Indicating bit is under 1 situation, has following field | |
| Aerial length of field array index 2bits | The Shen buying price and yesterday closing price difference and sign bit (array element by the indication of aerial length of field array index provides) | |
Comprise at the Shen selling price recording domain that is masked as at 0,1 o'clock:
| Shen selling price recording domain presence bit indicating bit is 1 o'clock 1bits | Indicating bit is under 1 situation, has following field | |
| Aerial length of field array index 2bits | (array element by aerial length of field array index indication provides for Shen selling price and Shen buying price difference and sign bit when having Shen buying price recording domain | |
| When not having Shen buying price recording domain the Shen selling price and yesterday closing price difference and sign bit (array element by the indication of aerial length of field array index provides) | ||
Comprise at the volume of business recording domain that is masked as at 1,2,3 o'clock:
| Volume of business length of field array index 2bits | Carved volume of business difference (array element by the indication of personal share volume of business length of field array index provides) in current time volume of business and last a period of time |
Comprise at the up-to-date valency recording domain that is masked as at 2,3 o'clock:
| Aerial length of field array index 2bits | The up-to-date valency of current time and yesterday closing price difference and sign bit (array element by the indication of aerial length of field array index provides) |
Comprise at the Shen buying price recording domain that is masked as at 2,3 o'clock:
Comprise at the Shen selling price recording domain that is masked as at 2,3 o'clock:
| There is flag bit 1bit in Shen buying price recording domain | Having flag bit is 1 o'clock, has following field | |
| Aerial length of field array index 2bits | Current time Shen buying price and up-to-date price differential value and sign bit (array element by aerial length of field array index indication provides) | |
| There is flag bit 1bit in Shen selling price recording domain | Having flag bit is 1 o'clock, has following field | |
| Aerial length of field array index 2bits | Current time Shen selling price and up-to-date price differential value and sign bit (array element by aerial length of field array index indication provides) | |
Comprise at the highest price recording domain that is masked as at 3 o'clock:
| There is flag bit 1bit in the highest price recording domain | Having flag bit is 1 o'clock, has following field | |
| Aerial length of field array index 2bits | Current time highest price and up-to-date price differential value (array element by aerial length of field array index indication provides) | |
Comprise at the lowest price recording domain that is masked as at 3 o'clock:
| There is flag bit 1bit in the lowest price recording domain | Having flag bit is 1 o'clock, has following field | |
| Aerial length of field array index 2bits | Up-to-date valency of current time and lowest price difference (array element by aerial length of field array index indication provides) | |
5) timesharing tendency form
| Verification and 8bits | Elongated class type-word 4bits | Aerial length of field array 11bits | Article one, LSN 13bits | Article one, record start the number of minutes llbits | N bar record (n＞=1) |
The sequence number of n bar record is sequence number+1 of n-1 bar record
Initial the number of minutes: 0 of midnight is constantly the number of minutes till now
Timesharing tendency n bar record format:
| This minute be the non-0 flag bit 1bit of volume of business constantly | Flag bit is 0 o'clock, has following field | |
| The price territory | The volume of business territory | |
Price territory form:
| Aerial length of field array index 2bits | N bar record is 0 with n-1 bar record price difference and 0 record price of sign bit (array element by aerial length of field array index indication provides) |
Volume of business territory form:
| Volume of business length of field array index 2bits | Volume of business (array element by the indication of volume of business length of field array index provides) |
6) day k line form
| Verification and 8bits | Elongated class type-word 4bits | Aerial length of field array 11bits | Article one, LSN 13bits | Article one, record | N bar record (n＞1) |
The sequence number of n bar record is sequence number+1 of n-1 bar record
Day k line article one record format:
| Date 32bits | The volume of business territory | The opening price territory | The closing price territory | The highest price territory | The lowest price territory |
Day k line article one record volume of business territory form:
| Volume of business length of field array index 2bits | Volume of business (array element by the indication of volume of business length of field array index provides) |
Day k line article one record opening price territory form:
| Volume of business length of field array index 2bits | Opening price (array element by the indication of volume of business length of field array index provides) |
Day k line article one record closing price territory form:
| Aerial length of field array index 2bits | Closing price and opening price difference and sign bit (array element by aerial length of field array index indication provides) |
Day k line article one record highest price territory form:
| Aerial length of field array index 2bits | Highest price and opening price difference (array element by aerial length of field array index indication provides) |
Day k line article one record lowest price territory form:
| Aerial length of field array index 2bits | Opening price and lowest price difference (array element by aerial length of field array index indication provides) |
Day k line n (n＞1) bar record format:
| Date | The volume of business territory | The opening price territory | The closing price territory | The highest price territory | The lowest price territory |
Day k line n (n＞1) bar record date territory form:
| Aerial length of field array index 2bits | N bar record and n-1 bar record date difference (array element by aerial length of field array index indication provides) |
Day k line n (n＞1) bar record volume of business territory form:
| Volume of business length of field array index 2bits | N bar record and n-1 bar record volume of business difference and sign bit (array element by the indication of volume of business length of field array index provides) |
Day k line n (n＞1) bar record opening price territory form:
| Aerial length of field array index 2bits | N bar record and n-1 bar record opening price difference and sign bit (array element by aerial length of field array index indication provides) |
Day k line n (n＞1) bar record closing price territory form:
| Aerial length of field array index 2bits | N bar record and n-1 bar record closing price difference and sign bit (array element by aerial length of field array index indication provides) |
Day k line n (n＞1) bar record highest price territory form:
Day k line n (n＞1) bar record lowest price territory form:
| Aerial length of field array index 2bits | N bar record and n-1 bar record highest price difference and sign bit (array element by aerial length of field array index indication provides) |
| Aerial length of field array index 2bits | N bar record and n-1 bar record lowest price difference and sign bit (array element by aerial length of field array index indication provides) |
7) catalogue file path form
| Verification and 8bit s | Elongated class type-word 4bit s | Files classes are opened word 4bit s | Document number 8bit s | File sequence number 20bi ts | Terminal receives type 4bit s | Permission type 1bit | Information receives authority 64bi ts | Full frame sign 1bit whether | File length overall 20 b | File verification and 16b | Catalogue file path title |
The files classes type-word: the specified document type for example is financial and economic news, personal share data, advertising message etc.;
Document number: document number is identical when sending same file;
File sequence number: specified document content position;
Permission type: it is individual receiver address or information sets authority that specified information receives authority, when being the information sets authority, 64bits represents 64 groups of information authorities, a certain bit puts 1, represent that this receiving terminal has authority to browse this document, when being the user logic address, have only the receiving terminal with this matching addresses just can have authority to browse this document;
Full frame sign whether: indicate this packet and whether all use, otherwise add this length of data package in this mark back;
Deposit by catalogue form from the website web pages downloaded, and the universal resource locator (url) address in the standardization macro document (html), make it to point to this catalogue or subdirectory path, during transmission All Files under the catalogue and subdirectory are all sent
8) file content form
| Verification and 8bits | Elongated class type-word 4bits | Files classes type-word 4bits | Document number 8bits | File sequence number 20bits | Full frame sign 1bit whether | File content |
Can see that from above-mentioned concrete protocol format the information class data send with the catalogue form tissue, have satisfied the convenience of data organization and being connected of existing internet information source to greatest extent.The packet that is generated by the STKCODE agreement has all comprised the complete information content, especially for the stock market data, when middle because radio frequency interference and during lost data packets, next time receive packet the time, can fill automatically, can not cause the mistake of data.After these STKCODE packets are decoded, exist in the local storage, when the user need browse, the local interaction browser just took out Various types of data from local storage, show on display.
The present invention also provides a kind of sending and receiving device of the stock certificate data based on unidirectional RF broadcast, comprising: data send part and Data Receiving part, and Fig. 2 has provided the data of making according to preferred embodiment of the present invention and sent electrical diagram partly.The described device of Fig. 2 comprises, external data device 1, data acquisition facility 2, memory 3, transmission configurator 4, STKCODE packing controller 5, STKCODE packing device 6, radio frequency signaling packing device 7, radio frequency sending set 8 and unidirectional RF broadcast device 9.
Data acquisition facility 2 obtains data from external data device 1, classify and be stored in the memory 3.External data device 1 comprises stock market's present quotation data source, foreign currency market data source, local information source, user management database, internet etc.The grouped data that sends in 4 pairs of memories 3 of configurator is configured, and deploy content comprises transmission priority, transmitting time, transmission number of times etc.STKCODE packing controller 5 reads the transmission configuration information of each grouped data in the memory 3, calculates the current time should send the sort of grouped data, and notice STKCODE packing device 6.STKCODE packing device 6 reads the grouped data of appointment and carries out the STKCODE packing from memory 3, and the STKCODE bag is sent to radio frequency signaling packing device 7.Radio frequency signaling packing device 7 carries out signalling coding, obtains digital signal, gives radio frequency sending set 8.8 pairs of digital signals of radio frequency sending set are modulated, and obtain analog signal, are launched by unidirectional RF broadcast device 9.
Fig. 3 has provided the electrical diagram of the radio frequency receiving unit of making according to preferred embodiment of the present invention.
This part comprises an antenna, and it is used for intercepting and capturing radio frequency (RF) signal of transmission, and this radiofrequency signal is coupled to radio-frequency transmitter 302, and radio-frequency transmitter 302 demodulation paging signals are selected the modulated signaling-information of signaling decoder 303 decodings.With POCSAG is example, and signaling decoder 303 decodes 20 contained in the code word of 32bit bit data information or 21 POCSAG address informations.The data message of selecting signaling decoder 303 to decode is connected to the input of decoder/controller 301, and it handles these information in known manner.The mains switch 304 that is connected to controller 301 is used for controlling the power input to receiver, thereby provide the function of a battery power conservation, EEPROM (read-only memory of electro erasible programmable) 307 is used for aided decoder/controller and finishes the storage device of decoding function, and switch 308 is used for controlling the input and output of decoder/controller.
Fig. 4 is based on the electrical diagram of the decoder/controller 301 that is applicable to Fig. 3.As shown in the figure, decoder/controller 301 comprises a slice central processing unit 403,68000 series, the imperial pearl series that for example can adopt Motorola Inc. to make comprise display driver 408, are created in the oscillator 407 of the timing signal that uses in 301 work of decoder/controller.Crystal or crystal oscillator (not drawing in the drawings) are connected to the input of oscillator 407, to be provided as the reference signal of setting up timing microprocessor.Timer/counter 406 is connected to oscillator 407 and programmable timing function is provided, and it is used for the work of receiver control or microprocessor.Random-access memory (ram) 404 is used for storing the stock/information data flow of not decoding, the stock/information data of decoding back storage, and it is received when radio-frequency transmitter 302 work.Among the figure, the storage area of programmable system memory (ROM or PROM) 405 etc. also can provide by weaving into read-only memory (PROM) or EEPROM (read-only memory of electro erasible programmable), the storage area stored logic station address of ROM405, effectively use the date, receive information authority, stock trader's telephone number signaling receiver address etc.Oscillator 407, timer/counter 406, random access memory 404, ROM405 are connected to central processing unit 403 by address/data/control bus 402, and the coded data that it is imported according to the input and the selection signaling decoder 303 of keyboard 305 executes instruction and controls 301 work.
Be connected to decoder/controller 301 by the demodulated data of selecting signaling decoder 303 to produce by I/O (I/O) port 401.By selecting signaling decoder 303 to produce demodulated data STKCODE packet.This demodulated data is received and is stored in the stock/information buffer RAM 404 of not decoding by CPU 403, and when the data that receive were combined into complete STKCODE packet, CPU 403 began to do decoding work.According to the disposal ability of CPU 403 and the size of RAM404, CPU 403 can be untied all or part of STKCODE packet, and with the decoding storage in RAM404.Decoder/controller 301 is according to the input or the current show state of keyboard then, decoder/controller 301 is sent to display driver 408 with stock/information through data/address bus 402, its process information and with information format, so that by showing such as the such display 306 of LCD (LCD).
The disposal ability of supposing CPU 403 is stronger, and the information of enough RAM404 storage decodings is arranged, at this moment can comprise by the canned data data content: the information of stock code table, stock present quotation, timesharing tendency, day K line, file directory form.Before the decoding for the STKCODE packet, at first calculate to remove first verification with remainder data verification with first verification and whether identical, if difference, showing has error code in the frame data, abandon; Otherwise read elongated class type-word,, make corresponding decoding and storage according to different types.
Claims (7)
1, a kind of method of sending and receiving of the stock certificate data based on unidirectional RF broadcast comprises:
(1) stock certificate data that will send is classified, obtain sorted stock certificate data;
(2) determine transmission priority, transmitting time and the transmission number of times of dissimilar stock certificate datas;
(3) according to transmission priority, transmitting time and the transmission number of times of stock certificate data, determine the stock certificate data that will send;
(4) first price data of definite each bar stock market record that will send is with respect to the data variation amount of this stock proxima luce (prox. luc) stock certificate data closing price, with other price datas of this trand ticket quotation record variable quantity with respect to first price data of this trand ticket market, these data variation amounts are carried out packing data according to the stock information host-host protocol, obtain stock information transmission protocol data bag; During according to this protocol packing, the type of data variable quantity is carried out elongated mode handle, this data variation amount is described with the minimum number of bits that can describe this data variation amount;
Described stock information host-host protocol comprises following field:
Verification and: the check digit that is used to deposit stock information transmission protocol data bag;
Variable length class type-word: be used to identify dissimilar stock information transmission protocol data bags, the type that this word is a type specification unit description packet with one group of binary digit, when the type codes of packet exceeds the description scope of existing type specification unit, increase type specification unit, existing type specification unit is set to " 1 " entirely;
Length of field array: be used for the variable quantity of one group of stock certificate data that will send is described with the minimum number of bits of this data variation amount;
Content: the coding that is used to deposit dissimilar stock certificate datas.
(5) stock information transmission protocol data bag is packed according to the radio frequency signaling protocol, then this packet is transmitted to user's receiving terminal by the radio-frequency (RF) broadcast net;
(6) radiofrequency signal of data receiver reception is carried out demodulation and obtain stock information transmission protocol data bag, this packet is oppositely decoded according to stock information host-host protocol agreement, obtain in each bar record first price data with respect to the data variation amount of proxima luce (prox. luc) stock certificate data closing price, with other price datas, and then obtain each bar stock certificate data record with respect to the variable quantity of first price data.
2, the method for sending and receiving of stock certificate data according to claim 1 is characterized in that the described variable quantity to stock certificate data of step (4) according to the step that the stock information host-host protocol carries out packing data is:
(A1) determine the number and the stock certificate data type of the stock certificate data variable quantity that will pack, determine the variable quantity of the different stock certificate datas that number and the length of field array of the type specification unit of variable length class type-word will be described with this;
(A2) according to the stock certificate data variable quantity that will pack the length of field array is divided into several elements, and determines each stock certificate data variable quantity position in the length of field array;
(A3) determine to describe the minimum number of bits that each stock certificate data variable quantity needs;
The position of stock certificate data variable quantity in the length of field array that (A4) each need be sent and the minimum number of bits that needs constitute the numeric field data bag;
(A5) according to the type of the stock certificate data that will send, determine that corresponding data send form, according to the length of field array content of the stock certificate data that will send, variable length class type-word, length of field array is packed, determine then described packet verification and, at last with described numeric field data bag and verification and composition stock information transmission protocol data bag.
3, the method for sending and receiving of stock certificate data according to claim 2, it is characterized in that step (A1) also comprises: the length of field array is divided into two kinds, a kind of for describing the aerial length of field array of the data relevant with price, a kind of for describing the about localization length array relevant with stock volume quantity, when sending stock certificate data, type to stock certificate data is judged, to select corresponding length of field array.
4,, it is characterized in that step (A5) is described to pack and further comprise the steps: sending stock certificate data according to the length of field array according to the method for sending and receiving of claim 2 or 3 described stock certificate datas
(B1) calculate the minimum number bits of the stock certificate data variable quantity that will send;
(B2) in the length of field array, find out subscript according to above-mentioned minimum number bits greater than the minimum length of field array element of this number;
(B3) subscript of the minimum length of field array element of elder generation's packing is pressed the bit length of the array element of this subscript indication then and is given this data record packing.
5, the method for sending and receiving of stock certificate data according to claim 4, it is characterized in that step (6) is described oppositely decodes according to the stock information host-host protocol to this packet, obtain in each bar record first price data with respect to the data variation amount of proxima luce (prox. luc) stock certificate data closing price, with other price datas with respect to the variable quantity of first price data, and then obtain each bar stock certificate data record, comprise the steps:
(C1) if the length of field array in the packet that receives is aerial length of field array, aerial length of field array is decompressed;
(C2) unpack the subscript of length of field array element, from the length of field array of decompress(ion), obtain representing the bit number of data according to subscript;
(C3) set by step the bit length that obtains in (C2) unpacks the data of corresponding bits length, and these data are the recording domain data.
6, the method for sending and receiving of stock certificate data according to claim 1, it is characterized in that step (1) is described classifies to the stock certificate data that will send, and is that stock certificate data is divided into: quotations on the stock market data, information data, internet data and user management data; Wherein the quotations on the stock market data specifically are divided into stock code table, full price position index, full price position personal share, real-time index, real-time personal share, stock market's seniority among brothers and sisters, timesharing tendency, day K line, technical indicator; The information data specifically are divided into information catalogue storehouse, userspersonal information's catalogue storehouse, real-time short message storehouse, advertising message database data; The user management data are divided into specifically that the user receives information storehouse validity date, the user receives information authority storehouse, user capture stock trader phone storehouse, current system time.
7, a kind of sending and receiving device of the stock certificate data based on unidirectional RF broadcast comprises:
Data send part: be used for various stock certificate data classifying packing, form the stock information transmission protocol package, described packet and other numerical datas are carried out compound, compound data are generated signaling protocol by coding card, signaling protocol is launched by the radio-frequency (RF) broadcast net;
Data Receiving part: be used for the data flow demodulation that obtains from described radio-frequency (RF) broadcast net, obtain composite data signal, therefrom obtain the stock information transmission protocol package, being decoded by the stock information transmission protocol package obtains stock market data and information data etc. again;
Described stock information host-host protocol comprises following field:
Verification and: the check digit that is used to deposit stock information transmission protocol data bag;
Variable length class type-word: be used to identify dissimilar stock information transmission protocol data bags, the type that this word is a type specification unit description packet with one group of binary digit, when the type codes of packet exceeds the description scope of existing type specification unit, increase type specification unit, existing type specification unit is set to " 1 " entirely;
Length of field array: be used for the variable quantity of one group of stock certificate data that will send is described with the minimum number of bits of this data variation amount;
Content: the coding that is used to deposit dissimilar stock certificate datas.
Wherein, described data sending part branch comprises:
Data acquisition facility: be used for stock certificate data is classified and obtained the stock certificate data that needs send;
Memory: be used for the classified stock data that will send that the store data deriving means obtains;
Send configurator: be used for the grouped data that leaves memory in is provided with transmission priority, sends zero-time, concluding time, transmission number of times;
Stock information host-host protocol packing controller: according to all needs send grouped datas priority, send zero-time, concluding time, transmission number of times and determine which data current time should pack to, and control command is sent to stock information host-host protocol packing device.
Stock information host-host protocol packing device: according to the instruction of stock information host-host protocol packing controller, from memory, read the classified stock data, generate the stock information transmission protocol package, and send to radio frequency signaling protocol packing device;
Radio frequency signaling protocol packing device: receive the stock information transmission protocol package, the stock information transmission protocol package is packaged into radio frequency signaling protocol packet, and sends to radio frequency sending set;
Radio frequency sending set: radio frequency signaling protocol data-modulated is become analog data flow, be transformed to the radiofrequency signal of a certain frequency again, and send out by the radio-frequency (RF) broadcast net;
Described data reception portion branch comprises:
Radio-frequency transmitter: be used to obtain the also analog radio-frequency signal of rectification reception, obtain radio frequency signaling protocol data;
Radio frequency signaling decoder: be used for the radio frequency signaling protocol data after the demodulation are decoded, obtain stock information host-host protocol signal; Stock information host-host protocol decoding/interaction controller: the stock information host-host protocol digital signal decoding according to acquisition goes out stock market data and information, management data and storage, according to the keyboard input, and the information that retrieval need show; Keyboard: be used for receiving user's mutual input;
Display: be used to show stock market data or the information that to browse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021008213A CN1148914C (en) | 2002-01-28 | 2002-01-28 | Method and equipment based on unidirectional RF broadcast for transmitting and receiving stock data |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021008213A CN1148914C (en) | 2002-01-28 | 2002-01-28 | Method and equipment based on unidirectional RF broadcast for transmitting and receiving stock data |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1360419A CN1360419A (en) | 2002-07-24 |
| CN1148914C true CN1148914C (en) | 2004-05-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021008213A Expired - Fee Related CN1148914C (en) | 2002-01-28 | 2002-01-28 | Method and equipment based on unidirectional RF broadcast for transmitting and receiving stock data |
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| Country | Link |
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| CN (1) | CN1148914C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1610349B (en) * | 2003-10-17 | 2012-07-04 | 华为技术有限公司 | Real-time information transmitting method |
| CN101312448B (en) * | 2007-05-23 | 2013-11-13 | 神乎科技股份有限公司 | Data process method |
| CN101355713B (en) * | 2007-07-23 | 2015-03-11 | 神乎科技股份有限公司 | System and method for broadcasting securities information |
| CN101267281B (en) * | 2008-04-25 | 2012-05-30 | 北京中企开源信息技术有限公司 | A transmission method and system for securities market data |
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