CN101500104A - Narrow-band bi-directional communication terminal apparatus - Google Patents
Narrow-band bi-directional communication terminal apparatus Download PDFInfo
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- CN101500104A CN101500104A CNA2009100466138A CN200910046613A CN101500104A CN 101500104 A CN101500104 A CN 101500104A CN A2009100466138 A CNA2009100466138 A CN A2009100466138A CN 200910046613 A CN200910046613 A CN 200910046613A CN 101500104 A CN101500104 A CN 101500104A
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Abstract
The invention discloses a narrow band two-way communication terminal device, which is used by being matched with a one-way set-top box and realizes the data postback of the set-top box. The technical proposal of the invention is as follows: the device comprises an ARM control chip at local side and a plurality of communication modules connected with the ARM control chip; the ARM control chip coordinates the operating conditions of each communication module; each communication module is collocated with one or a plurality of communication chips; one communication chip is collocated on the set-top box of the terminal, wherein communication between the terminal and the local side is carried out according to the UDP transport protocols in the communication chips; and the ARM control chip is used for specifying and describing the UDP transport protocols. The device is applied to the digital television field.
Description
Technical field
The present invention relates to a kind of communication terminal, relate in particular to a kind of narrow-band bi-directional communication terminal apparatus.
Background technology
Transformation has several proposed standards to cable TV two-way network in General Bureau of Radio, Film and Television, comprise DOCSIS, MOCA, EOC, BIOC etc., wherein, be referred to as the DOC technology as the expansion and the development of the two-way product that accesses terminal under the BIOC technical system of one of General Bureau of Radio, Film and Television's two-wayization of cable network transformation instruction proposed standard.
The know-why of DOC as shown in Figure 1, its principle is divided into two parts: the mixing of the modulating/demodulating of the FSK modulation system of base-band data signal, TV signal and data modulated signal/separate.The DOC technology is used to some extent in field of wireless transmission at present, and application scenarios comprises automobile remote-control door opener, wireless points firearm etc.
Along with Digital Television enters " back translation " epoch, user's ARPU value is attempted to promote by new business by increasing operator.For making operator solve network value added, professional increment, take in value-added problem, a kind of convenience of needs is feasible, the network value added scheme of high performance-price ratio, this scheme can promote the two-way interactive function of network, thereby satisfy the demand that operator carries out integrated service at the hfc plant present situation.
Summary of the invention
The objective of the invention is to satisfy above-mentioned demand, a kind of narrow-band bi-directional communication terminal apparatus is provided, cooperate one-way set-top box to use together, realize the data passback of set-top box, thereby supporting multiple two-way interactive business functions such as page browsing, VOD program request, time-moving television, Java application, is the bilateral network modification scheme of the tool cost performance in current cable TV field.
Technical scheme of the present invention is: the present invention has disclosed a kind of narrow-band bi-directional communication terminal apparatus, this device comprises ARM control chip that is positioned at local side and a plurality of communication modules that link to each other with this ARM control chip, the ARM control chip is coordinated the operating state of each communication module, each communication module disposes one or more communication chips, communication chip of set-top box configuration of terminal, wherein communicate by the UDP host-host protocol in those communication chips between terminal and the local side, this ARM control chip carries out standard and description to this UDP host-host protocol.
Above-mentioned narrow-band bi-directional communication terminal apparatus, wherein, this device cooperates one-way set-top box to use narrow-band communication system, realizes the data passback of set-top box.
Above-mentioned narrow-band bi-directional communication terminal apparatus, wherein, the data packet format in this UDP host-host protocol between STB terminal and the local side is: the field of the udp protocol of compression, based on a field, the data field of the reliable transport protocol of UDP; A field of the field of the data packet format in this UDP host-host protocol between local side and the acting server: IP, the udp protocol of compression, based on a field, the data field of the reliable transport protocol of UDP.
Above-mentioned narrow-band bi-directional communication terminal apparatus, wherein, the frame head form of the Frame in this UDP host-host protocol is:
Up frame head form is:
；
The descending frame head form is:
Wherein parameter S YN, ACK, FIN, RST are the connection status signs in the Transmission Control Protocol.
Above-mentioned narrow-band bi-directional communication terminal apparatus, wherein, this narrow-band bi-directional communication terminal apparatus carries out data communication by serial ports and set-top box.
The present invention contrasts prior art following beneficial effect: the present invention is devoted to realize in the two-way access of set-top box field the structure of DOC communication system, realize carrying out of set-top box two-way services, realize that to television network broadcast the two-way interactive function provides the solution that a kind of convenience is feasible, cost performance is excellent, for carrying out the two-way interactive business, the radio and TV operator provides condition by this system, for the network operation income improves in operator.Characteristics of the present invention also are networking separately, can also be seamless integrated with WOC wide-band bidirectional network rebuilding scheme, and the mixing access way for operator provides the width unification provides the flexibility of maximum for the bilateral network transformation.Device of the present invention is used in combination with existing set-top box by distinctive serial ports access technology, realizes the upgrading of set-top box from unidirectional to two-way fast, has vitalized the storage set-top box on the market.
Description of drawings
Fig. 1 is the schematic diagram of DOC technology.
Fig. 2 is the schematic diagram of the embodiment of narrow-band bi-directional communication terminal apparatus of the present invention.
Fig. 3 is the framework map of DOC communication protocol of the present invention.
Fig. 4 is the schematic diagram of DOC communication protocol stack of the present invention.
Fig. 5 is the schematic diagram of the data packet format of communication protocol of the present invention.
Fig. 6 is the schematic diagram of frame head form of the Frame of communication protocol of the present invention.
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
Fig. 2 shows the principle of the embodiment of narrow-band bi-directional communication terminal apparatus of the present invention.See also Fig. 2, device comprises ARM control chip 10 and four communication modules 120～126 that are positioned at local side.ARM control chip 10 is coordinated the operating state of these four communication modules 120～126, comprises which communication module work of control, controls which communication module rest etc.These four communication modules 120～126 link to each other with ARM control chip 10, and each communication module configuration communication chip, and the quantity of communication chip can not wait from 1 to 4.Go up a configuration identical communication chip (for example communication chip 22a) at terminal set top box (for example set-top box 24a), make to communicate by the UDP host-host protocol in the corresponding communication chip between terminal set top box and the local side device.And ARM control chip 10 carries out standard and description to this UDP host-host protocol.
This device is to cooperate one-way set-top box to use the DOC communication system, to realize the data passback of set-top box.
The framework of the DOC communication protocol that this device utilized and DOC communication protocol stack are respectively as shown in Figure 3 and Figure 4.This device carries out data communication by serial ports and set-top box, and the mode of promptly utilizing serial ports to increase arrowband passback DOC terminal realizes two-way fast upgrading, thereby satisfies the needs of every two-way services function that set-top box increases day by day.This device has been realized bilateral network modification scheme cheaply by serial mode, characteristics according to serial communication, UDP host-host protocol in the communication chip of the present invention be a kind of with the relaying be separation to down privately owned, to the communication protocol of last standard, be called reliable UDP host-host protocol (R-UDP agreement).The defined data packet format of this reliable UDP host-host protocol as shown in Figure 5.Data packet format is divided into C-UDP/R-UDP protocol data packet format, the standard udp data packet format between C-UDP/R-UDP protocol data packet format, DOC local side and the acting server between set-top box and the DOC local side.Wherein the C-UDP/R-UDP protocol data packet format between set-top box and the DOC local side is divided into three sections: the field (R-UDP Head) based on the reliable transport protocol of UDP of a field of the udp protocol of the compression of 8 bytes (C-UDP Head), 4 bytes, the data field of 0～1500 byte.C-UDP/R-UDP protocol data packet format between DOC local side and the acting server is divided into four sections: the field (R-UDP Head) based on the reliable transport protocol of UDP of a field (C-UDP Head) of the udp protocol of the compression of the IP of 20 a bytes field (IP Head), 8 bytes, 4 bytes, the data field of 0～1500 byte.Standard udp data packet format is divided into three sections: UDP the field (UDP Head) of the IP of 20 a bytes field (IP Head), 8 bytes, the data field (Data) of 0～1504 byte.
Fig. 6 shows the frame head form of reliable UDP host-host protocol predetermined data frame of the present invention.See also Fig. 6, in the form of up frame head and descending frame head, wherein which communication module is parameter " determining of communication module " be used to determine to belong to, and parameter " application udp port " is exactly the serve port on the acting server, and different ports is distinguished different services.Parameter " length " and " verification and " are all calculated according to the udp protocol regulation.Parameter " SYN/ACK/FIN/RST " all is the connection status signs in the Transmission Control Protocol.Parameter " serial number " will increase by 1 through a data packet transmission.And parameter " acknowledged sequence number " is used for the whole packet that receives is confirmed.
This device is that the DOC technology is combined with set-top box, cable TV signal in the cable is separated with the IP data-signal, and by serial ports with the IP data-signal, by the CATV transmission interface cable TV signal is sent to set-top box, thereby satisfies the demand of passback of User IP data and interactive television business.The access logic of device is as follows: when the starting up of terminal state, the registration that is at war with of terminal receives local side after start log-in command, obtain an effective time slicing after succeeding in registration, as the time channel of this terminal drawn game end communication, this hour of log-on sheet has fixing lease time.When normal operating conditions, whether local side has data upload according to timeslice inquiry and registration terminal, and the data data that then receiving terminal is uploaded in this time slicing of time slicing are arranged, and all the other registration terminals wait for that the timeslice of oneself arrives.If this stylish terminal powers on, local side can send the permission log-in command to new terminal in independent timeslice, receive the registration of new terminal.If local side has data down transmission to give relevant terminal, local side can insert a new timeslice after deadline sheet inquiry, be used for sending data to corresponding terminal, and after transmission was finished, this timeslice was nullified.Working machine is shaped on: obtain a timeslice according to competition mechanism from local side after (1) each terminal powers on, the local side management is accepted in joining day sheet circulation; (2) local side is according to timeslice, and whether inquiry terminal has data upload, manages each terminal; (3) local side receives new endpoint registration in independent timeslice, and the local side management is accepted in the terminal joining day sheet circulation that the registration back is new; (4) if there are data to descend to pass, local side inserts new timeslice after the current time, the sheet query manipulation was finished, and down-transmitting data is given corresponding terminal; (5) narrowband systems any time all has only a terminal and local side to carry out up or downgoing communication.
This device also can be used as the part that a separate modular becomes set-top box, shows as RF signal reader top box, is connected by the universal serial bus with set-top box inside, realizes the two-way interactive function of set-top box.
The foregoing description provides to those of ordinary skills and realizes or use of the present invention; those of ordinary skills can be under the situation that does not break away from invention thought of the present invention; the foregoing description is made various modifications or variation; thereby protection scope of the present invention do not limit by the foregoing description, and should be the maximum magnitude that meets the inventive features that claims mention.
Claims (5)
1, a kind of narrow-band bi-directional communication terminal apparatus, this device comprises ARM control chip that is positioned at local side and a plurality of communication modules that link to each other with this ARM control chip, the ARM control chip is coordinated the operating state of each communication module, each communication module disposes one or more communication chips, communication chip of set-top box configuration of terminal, wherein communicate by the UDP host-host protocol in those communication chips between terminal and the local side, this ARM control chip carries out standard and description to this UDP host-host protocol.
2, narrow-band bi-directional communication terminal apparatus according to claim 1 is characterized in that, this device cooperates one-way set-top box to use narrow-band communication system, realizes the data passback of set-top box.
3, narrow-band bi-directional communication terminal apparatus according to claim 1, it is characterized in that the data packet format in this UDP host-host protocol between STB terminal and the local side is: the field of the udp protocol of compression, based on a field, the data field of the reliable transport protocol of UDP; A field of the field of the data packet format in this UDP host-host protocol between local side and the acting server: IP, the udp protocol of compression, based on a field, the data field of the reliable transport protocol of UDP.
4, narrow-band bi-directional communication terminal apparatus according to claim 3 is characterized in that, the frame head form of the Frame in this UDP host-host protocol is:
Up frame head form is:
；
The descending frame head form is:
Wherein parameter S YN, ACK, FIN, RST are the connection status signs in the Transmission Control Protocol.
5, narrow-band bi-directional communication terminal apparatus according to claim 1 is characterized in that, this narrow-band bi-directional communication terminal apparatus carries out data communication by serial ports and set-top box.
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| CN2009100466138A CN101500104B (en) | 2009-02-25 | 2009-02-25 | Narrow-band bi-directional communication terminal apparatus |
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| CN2009100466138A CN101500104B (en) | 2009-02-25 | 2009-02-25 | Narrow-band bi-directional communication terminal apparatus |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102868914A (en) * | 2011-07-08 | 2013-01-09 | 柏视数码科技(上海)有限公司 | Method and system for realizing video on demand on unidirectional digital television set-top box |
| WO2015051748A1 (en) * | 2013-10-10 | 2015-04-16 | Schneider Electric Industries Sas | Communication apparatus and relay protection apparatus |
| US9205365B2 (en) | 2011-02-28 | 2015-12-08 | Corning Incorporated | Sorbent article for CO2 capture |
| CN110830472A (en) * | 2019-11-07 | 2020-02-21 | 西北工业大学 | Flexible data transmission method of flexible data transmission protocol based on TCP/IP protocol |
-
2009
- 2009-02-25 CN CN2009100466138A patent/CN101500104B/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9205365B2 (en) | 2011-02-28 | 2015-12-08 | Corning Incorporated | Sorbent article for CO2 capture |
| CN102868914A (en) * | 2011-07-08 | 2013-01-09 | 柏视数码科技(上海)有限公司 | Method and system for realizing video on demand on unidirectional digital television set-top box |
| WO2015051748A1 (en) * | 2013-10-10 | 2015-04-16 | Schneider Electric Industries Sas | Communication apparatus and relay protection apparatus |
| US10560547B2 (en) | 2013-10-10 | 2020-02-11 | Schneider Electric Industries Sas | Communication apparatus and relay protection apparatus |
| CN110830472A (en) * | 2019-11-07 | 2020-02-21 | 西北工业大学 | Flexible data transmission method of flexible data transmission protocol based on TCP/IP protocol |
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| CN101500104B (en) | 2011-12-28 |
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Owner name: SHANGHAI YUNSHI TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: TIANBAI WIDEBAND NETWORK SCIENCE AND TECHNOLOGY (SHANGHAI) CO., LTD. Effective date: 20130115 |
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Effective date of registration: 20130115 Address after: 201800 Shanghai city Jiading District town of Jiading Bole Road No. 70 building 2008 room 10 Patentee after: Shanghai Cloud Vision Networks Technology Co., Ltd. Address before: 201103, building 9, Hechuan building, No. 2016, Shanghai, Yishan Road Patentee before: Tianbai Broadband Network Technology (Shanghai) Co., Ltd. |
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Address after: 201800 Shanghai city Jiading District town of Jiading Bole Road No. 70 building 2008 room 10 Patentee after: Shanghai Cloud Vision Networks Technology Co., Ltd. Address before: 201800 Shanghai city Jiading District town of Jiading Bole Road No. 70 building 2008 room 10 Patentee before: Shanghai Cloud Vision Networks Technology Co., Ltd. |