CN115396383A - Method for reversely controlling code stream in code stream transmitted by multiple devices - Google Patents
Method for reversely controlling code stream in code stream transmitted by multiple devices Download PDFInfo
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- CN115396383A CN115396383A CN202210841966.2A CN202210841966A CN115396383A CN 115396383 A CN115396383 A CN 115396383A CN 202210841966 A CN202210841966 A CN 202210841966A CN 115396383 A CN115396383 A CN 115396383A
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- 238000000034 method Methods 0.000 title claims abstract description 21
- 230000005540 biological transmission Effects 0.000 claims abstract description 11
- 230000002159 abnormal effect Effects 0.000 claims description 14
- 238000003491 array Methods 0.000 claims description 10
- 238000004891 communication Methods 0.000 claims description 8
- 238000005516 engineering process Methods 0.000 abstract description 7
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/26—Flow control; Congestion control using explicit feedback to the source, e.g. choke packets
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
- H04L41/0663—Performing the actions predefined by failover planning, e.g. switching to standby network elements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/24—Traffic characterised by specific attributes, e.g. priority or QoS
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/50—Reducing energy consumption in communication networks in wire-line communication networks, e.g. low power modes or reduced link rate
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Abstract
The invention relates to the internet code stream transmission technology, and particularly discloses a method for reversely controlling a code stream in a code stream transmitted by a plurality of devices, wherein a plurality of receiving threads are used for one-to-one correspondence with a plurality of sending devices and establishing affiliated links, and a plurality of paths of links are established between the plurality of receiving threads and the plurality of sending devices; the multiple links are assigned with priority when being created; the receiving equipment starts a plurality of receiving threads for receiving data messages sent by a plurality of sending equipment, after each receiving thread receives the data messages, whether the link to which the receiving equipment belongs is a normal link with the highest priority or not is judged, if not, the data messages are discarded, if yes, the next data receiving processing flow is carried out, and a control message for stopping sending the stream is sent to all links with relatively lower priorities; the invention can effectively improve the system availability of the receiving equipment and can reduce the actual use bandwidth between the sending equipment and the receiving equipment.
Description
Technical Field
The invention relates to the internet code stream transmission technology, in particular to a method for reversely controlling a code stream in a code stream transmitted by a plurality of devices.
Background
Currently, based on internet transmission code stream, a transmission technology that one sending device corresponds to one receiving device or a transmission technology that one sending device corresponds to a plurality of receiving devices is generally used.
In practical applications, it is found that when one sending device is used for transmitting a code stream by using a transmission technology in which one sending device corresponds to one receiving device or a transmission technology in which one sending device corresponds to a plurality of receiving devices, a situation that the receiving device cannot receive a required data packet due to a problem of the sending device or a problem of other networks is likely to occur when one sending device transmits a code stream, and system availability of the receiving device is reduced.
Disclosure of Invention
The invention provides a method for reversely controlling a code stream in a code stream transmitted by a plurality of devices, aiming at the situation that a receiving device cannot receive a required data message due to the problem of a transmitting device or the problem of other networks when single-path transmission easily occurs and reducing the system availability of the receiving device.
In order to solve the technical problems, the invention provides the following specific scheme:
a method for reverse control code stream in code stream transmitted by multiple devices comprises multiple transmitting devices and a receiving device, wherein the multiple transmitting devices and the receiving device communicate through an IP network;
the receiving equipment is provided with a plurality of receiving threads, the receiving threads are used for corresponding to the sending equipment one by one and establishing a link to which the receiving threads belong, and a multi-path link is established between the receiving threads and the sending equipment;
the priority is assigned when the multiple links are established, and one link is configured with one priority;
the receiving device starts a plurality of receiving threads for receiving the data messages sent by the sending devices, after each receiving thread receives the data messages, whether the link to which the receiving device belongs is a normal link with the highest priority is judged, if not, the data messages are discarded, if yes, the receiving device carries out the next data receiving processing flow, and the receiving device sends control messages for stopping sending the streams to all links with relatively low priorities.
Optionally, the receiving device is provided with all link state arrays, and the plurality of receiving threads are respectively connected with all link state arrays;
and each receiving thread acquires the state of the link from the state arrays of all the links, wherein the state comprises the priority of the link and whether the link is normal, so that after each receiving thread receives the data message, whether the link to which the receiving thread belongs is the highest priority and whether the link to which the receiving thread belongs is the normal link is judged.
Optionally, the sending device and the receiving device periodically send the control packet to the opposite terminal, so that the communication state of the opposite terminal can be known regardless of whether a data packet is sent, thereby avoiding a situation that the data packet cannot be received, and improving system availability of the receiving device.
Optionally, each time the receiving device receives a control packet or a data packet, the receiving device writes the current time into a local variable of the latest packet time, so as to determine whether the link to which the receiving device belongs is normal.
Optionally, the receiving device periodically polls the latest packet time of all links, if the time difference between the current time and the latest packet time of a link is greater than a set threshold, the link is considered to be abnormal, otherwise, the link is considered to be normal, and the state of whether the link is normal is written into the state array of all links, so that when the receiving thread receives the data packet sent by the sending device, the state of the link is judged.
Optionally, the receiving device periodically checks states of all links from high to low according to the priority, and removes the control packet for stopping sending the stream for the normal link with the highest priority and the abnormal link with the higher priority, and sends the control packet to the corresponding sending device, so as to confirm that the data packet sent by the normal link with the highest priority is received, and perform the next data receiving processing flow.
Optionally, the receiving device sends a flow stopping control message to links other than the normal link with the highest priority and the abnormal link with a higher priority, and the sending device receives the flow stopping control message and stores the flow stopping control message to the local, so that when the sending device sends a data message, the sending device first determines the local flow stopping control message, and if the sending device wants to stop sending data, the data message is directly discarded, otherwise, the data message is sent to the receiving device.
Optionally, multiple sending devices and one receiving device configure IP addresses and port numbers, and corresponding UDP communication ports are respectively established between the multiple sending devices and the receiving device through the IP addresses and the port numbers, so that normal communication between the sending devices and the receiving devices can be achieved under a normal network condition, control messages can be mutually transmitted between the sending devices and the receiving devices, but data messages can only be sent to the receiving devices by the sending devices.
Optionally, after the sending device receives the control message of the data to be sent, the sending device resumes sending the data message to the receiving device, and continues to transmit the code stream.
Optionally, only the data packet of one link may transmit data at the same time, so that the actually used bandwidth between the sending device and the receiving device is effectively reduced.
Compared with the prior art, the invention has the beneficial effects that: the invention provides a method for reversely controlling a code stream in a code stream transmitted by a plurality of devices, which is characterized in that a scheme of receiving a data message by a master device or a slave device according to the priority level is realized at a receiving end based on the application scenes of a plurality of transmitting devices and a receiving device, and a control message is reversely transmitted at the receiving end for controlling whether a transmitting end transmits the data message or not, thereby effectively improving the system availability of the receiving device and simultaneously reducing the actual use bandwidth between the transmitting device and the receiving device.
Drawings
FIG. 1 is a networking application environment provided in an embodiment of the present invention;
fig. 2 is a data packet control mechanism provided in an embodiment of the present invention;
fig. 3 is a schematic diagram of maintaining a link state according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described in detail and completely with reference to the accompanying drawings. The described embodiments are illustrative of some, but not all embodiments of the invention.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without inventive efforts based on the embodiments of the present invention, are within the scope of protection of the present invention.
For example, a method for transmitting a reverse control code stream in a code stream by a plurality of devices comprises a plurality of sending devices and a receiving device, wherein the sending devices and the receiving device are communicated through an IP network; the receiving equipment is provided with a plurality of receiving threads, the receiving threads are used for corresponding to the sending equipment one by one and establishing a link to which the receiving threads belong, and a multi-path link is established between the receiving threads and the sending equipment; the priority is assigned when the multiple links are established, and one link is configured with one priority; the receiving device starts a plurality of receiving threads for receiving the data messages sent by the sending devices, after each receiving thread receives the data messages, whether the link to which the receiving device belongs is a normal link with the highest priority is judged, if not, the data messages are discarded, if yes, the next data receiving processing flow is carried out, and the control messages for stopping sending the streams are sent to all links with relatively lower priorities.
In the method for reversely controlling a code stream in a multi-device transmission code stream provided by this embodiment, based on an application scenario of a plurality of sending devices and one receiving device, a scheme for receiving a data message by a master/slave device or according to priority level is implemented at a receiving end, and a control message is reversely sent at the receiving end to control whether a sending end sends the data message, so that system availability of the receiving device can be effectively improved, and an actually used bandwidth between the sending device and the receiving device can be reduced.
The first embodiment is as follows:
as shown in fig. 1, a method for transmitting a reverse control code stream in a code stream by multiple devices includes multiple sending devices and a receiving device, and the multiple sending devices and the receiving device communicate with each other through an IP network.
The receiving device is provided with a plurality of receiving threads, the plurality of receiving threads are respectively in one-to-one correspondence with the plurality of sending devices and establish a link to which the receiving threads belong, namely, one receiving thread corresponds to one sending device, and the link to which the receiving threads belong is established between the receiving threads and the plurality of receiving devices, therefore, a plurality of links are established between the plurality of receiving threads and the plurality of receiving devices, when each link is established, the priority of each link is appointed, and one link is configured with one priority.
If the highest priority is 1 and the lowest priority is 65535, after the link is created, the priority of the link may be modified to receive the data packet at the receiving end in a high-low priority or master-standby mode.
The receiving equipment starts a plurality of receiving threads for receiving the data messages sent by a plurality of sending equipment, after each receiving thread receives the data messages, whether the link to which the receiving equipment belongs is a normal link with the highest priority or not is judged, if not, the data messages are discarded, if yes, the receiving equipment carries out the next data receiving processing flow, and the receiving equipment sends control messages for stopping sending the streams to all links with relatively lower priorities.
For example, the number of the sending devices is three, including a first sending device, a second sending device and a third sending device, and correspondingly, the receiving device is provided with three receiving threads, including a first receiving thread, a second receiving thread and a third receiving thread. The first sending equipment corresponds to the first receiving thread and establishes a first link, and the priority of the first link is 1; the sending equipment corresponds to a receiving thread II and establishes a link II, and the priority of the link II is 2; the third sending equipment corresponds to the third receiving thread and creates a third link, and the priority of the third link is 3; that is, the priority of link one is highest, the priority of link two is medium, and the priority of link three is lowest.
When the receiving equipment starts each receiving thread, each receiving thread receives the data message, namely, judges whether the link to which the receiving equipment belongs is a normal link with the highest priority, if the first link is an abnormal link, the data message is discarded, if the first link is a normal link and the priority of the first link is the highest, the receiving equipment carries out the next data receiving processing flow, and the receiving equipment sends a control message for stopping sending the stream to the second link and the third link. When the second sending equipment and the third sending equipment which the second link and the third link belong to receive the control message for stopping sending the stream, analyzing the control message and controlling the sending of the data message.
When the first link is an abnormal link and the second link is judged to be a normal link with the highest priority, the receiving equipment receives the data message of the second link and performs the next data receiving processing flow, and meanwhile, the receiving equipment sends a control message for stopping sending the stream to the third link. And when the third sending equipment to which the third link belongs receives the control message for stopping sending the stream, analyzing the control message and controlling the sending of the data message.
It can be understood that, in this example, specific data of the sending devices is not limited, and the number of the sending devices may be increased or decreased according to the actual control application requirement.
The invention realizes the scheme of receiving the data messages by the master and the slave or according to the priority level at the receiving end based on the application scene of a plurality of sending devices and one receiving device, and reversely sends the control message at the receiving end for controlling whether the sending end sends the data message or not, thereby effectively improving the system availability of the receiving device and simultaneously reducing the actual use bandwidth between the sending device and the receiving device.
Example two:
referring to fig. 1 and 3, the receiving apparatus is provided with all link state arrays, and a plurality of receiving threads are respectively connected with all link state arrays; and each receiving thread acquires the state of the link from all the link state arrays, wherein the state comprises the priority of the link and whether the link is normal or not, so that after each receiving thread receives the data message, whether the link to which the receiving thread belongs is the highest priority and whether the link is normal or not is judged.
For the priority ranking of the links, when the links are created, unique corresponding priorities are configured, so that the priorities of the links are ranked in sequence, and certainly, the priorities of the links can be modified in the later period to meet different requirements.
The sending equipment and the receiving equipment periodically send the control message to the opposite end, so that the communication state of the opposite end can be known whether the data message is sent or not, the condition that the data message cannot be received is avoided, and the system availability of the receiving equipment is improved.
Specifically, the sending device and the receiving device send keep alive handshake control messages to the opposite end every 0.1 second, so as to ensure that the communication state of the opposite end is known.
And for the judgment of whether the link is normal, the following mode is adopted: when receiving a control message or a data message, the receiving device writes the current time into the local variable of the latest message time to judge whether the link is normal.
Specifically, the receiving device periodically polls the latest message time of all links, if the time difference between the current time and the latest message time of a link is greater than a set threshold, the link is considered to be abnormal, otherwise, the link is considered to be normal, and the state of whether the link is normal is written into the state array of all links, so that when the receiving thread receives the data message sent by the sending device, the state of the link is judged.
In this example, the threshold is set to 1 second, that is, if the time difference between the current time and the latest message time of the link is greater than 1 second, the link is considered to be abnormal, otherwise, the link is considered to be normal, and the state of whether the link is normal is written into all link state arrays.
Example three:
as shown in fig. 2, the receiving device periodically checks the states of all links from high to low according to the priority, and removes the control packet for stopping sending the stream for the normal link with the highest priority and the abnormal link with the higher priority, and sends the control packet to the corresponding sending device, so as to confirm that the data packet sent by the normal link with the highest priority is received, and perform the next data receiving processing flow.
The receiving equipment sends a control message for stopping sending the stream to the links except the normal link with the highest priority and the abnormal link with the higher priority, the sending equipment receives the control message for stopping sending the stream and stores the control message to the local, so that when the sending equipment sends the data message, the sending equipment judges the local control message for stopping sending the stream first, if the sending equipment needs to stop sending the data, the data message is directly discarded, otherwise, the data message is sent to the receiving equipment, and through the mechanism, the receiving equipment can control the sending equipment to send the data message or not.
For example, as mentioned above, the number of the sending devices is three, including the first sending device, the second sending device and the third sending device, and correspondingly, the receiving device is provided with three receiving threads, including the first receiving thread, the second receiving thread and the third receiving thread. The first sending equipment corresponds to the first receiving thread and creates a first link, and the priority of the first link is 1; the sending equipment corresponds to a receiving thread II and establishes a link II, and the priority of the link II is 2; the third sending equipment corresponds to a third receiving thread and creates a third link, and the priority of the third link is 3; that is, the priority of the link one is highest, the priority of the link two is medium, and the priority of the link three is lowest.
In this example, assume that link one is an abnormal link, and link two and link three are normal links.
The receiving equipment periodically checks the states of the first link, the second link and the third link according to the priority from high to low, eliminates the control message for stopping sending the stream for the second normal link with the highest priority and the first abnormal link with the higher priority, and sends the control message to the corresponding second sending equipment and the first sending equipment, and sends the control message for stopping sending the stream to the third normal link, the third sending equipment receives the control message for stopping sending the stream and stores the control message to the local, so that when the third sending equipment sends the data message, the local control message for stopping sending the stream is judged first, if the sending equipment stops sending the data, the data message is directly discarded, otherwise, the data message is sent to the receiving equipment, and through the mechanism, the receiving equipment can control whether the sending equipment sends the data message.
Example four:
in this example, a plurality of sending devices and one receiving device configure IP addresses and port numbers, and the plurality of sending devices and one receiving device are enabled to respectively establish corresponding UDP communication ports through the IP addresses and the port numbers, so that normal communication can be achieved between the sending devices and the receiving devices under the condition that a network is normal, control messages can be mutually transmitted between the sending devices and the receiving devices, but data messages can only be sent to the receiving devices by the sending devices.
And when the sending equipment receives the control message of the data to be sent, the sending equipment resumes sending the data message to the receiving equipment and continues to transmit the code stream.
In the transmission technology of multiple sending and one receiving, only one data message of one link can transmit data at the same time, so that the actual use bandwidth between the sending equipment and the receiving equipment is effectively reduced.
In summary, the method for controlling a code stream reversely in a code stream transmitted by multiple devices according to the present invention implements a scheme of receiving a data message at a receiving end according to a master/slave or priority level based on application scenarios of multiple transmitting devices and a receiving device, and reversely transmits a control message at the receiving end for controlling whether a transmitting end transmits the data message, so as to effectively improve system availability of the receiving device, and reduce an actually used bandwidth between the transmitting device and the receiving device.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It is to be understood that the present invention is not limited to what has been described above, and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, and these are all within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A method for controlling code stream reversely in code stream transmitted by a plurality of devices is characterized by comprising a plurality of sending devices and a receiving device, wherein the sending devices and the receiving device are communicated through an IP network;
the receiving equipment is provided with a plurality of receiving threads, the receiving threads are used for corresponding to the sending equipment one by one and establishing a link to which the receiving threads belong, and a multi-path link is established between the receiving threads and the sending equipment;
the priority is assigned when the multiple links are established, and one link is configured with one priority;
the receiving equipment starts a plurality of receiving threads for receiving the data messages sent by the sending equipment, after each receiving thread receives the data messages, whether the link to which the receiving equipment belongs is the normal link with the highest priority or not is judged, if not, the data messages are discarded, if yes, the receiving equipment carries out the next data receiving processing flow, and the receiving equipment sends the control messages for stopping sending the streams to all the links with relatively lower priorities.
2. The method of claim 1, wherein the receiving device is configured with all link state arrays, and a plurality of receiving threads are respectively connected to all link state arrays;
and each receiving thread acquires the state of the link from the state array of all the links, wherein the state comprises the priority of the link and whether the link is normal or not.
3. The method of claim 2, wherein the sending device and the receiving device periodically send control packets to the peer devices.
4. The method as claimed in claim 3, wherein the receiving device writes the current time into the local variable of the latest packet time every time it receives a control packet or data packet.
5. The method of claim 4, wherein the receiving device periodically polls the latest packet time of all links, if the time difference between the current time and the latest packet time of a link is greater than a set threshold, the link is considered to be abnormal, otherwise the link is considered to be normal, and writes the status of whether the link is normal in all link status arrays.
6. The method of claim 1, wherein the receiving device periodically checks the status of all links from high to low in priority, and removes the control packet that stops sending the stream for the normal link with the highest priority and the abnormal link with the higher priority, and sends the control packet to the corresponding sending device.
7. The method of claim 6, wherein the receiving device sends the control message for stopping sending the stream to the links except the normal link with the highest priority and the abnormal link with the higher priority, and the sending device receives the control message for stopping sending the stream and stores the control message locally.
8. The method as claimed in claim 1, wherein the sending devices and the receiving device configure IP addresses and port numbers, and establish UDP communication ports for the sending devices and the receiving device respectively through the IP addresses and the port numbers.
9. The method of claim 1, wherein sending the data packet to the receiving device is resumed when the sending device receives a control packet for which data transmission is required.
10. The method of claim 1, wherein only one link of data packets transmits data at a time.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210841966.2A CN115396383B (en) | 2022-07-18 | 2022-07-18 | Method for reversely controlling code stream in code stream transmitted by multiple devices |
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| CN202210841966.2A CN115396383B (en) | 2022-07-18 | 2022-07-18 | Method for reversely controlling code stream in code stream transmitted by multiple devices |
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| CN115396383B CN115396383B (en) | 2023-08-11 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105760452A (en) * | 2016-02-04 | 2016-07-13 | 深圳市嘉力达实业有限公司 | Method and system for collection, processing and storage of high-concurrency mass data |
| CN106330756A (en) * | 2015-07-03 | 2017-01-11 | 华为技术有限公司 | A data transmission method and device |
| CN108322479A (en) * | 2018-03-06 | 2018-07-24 | 深圳辉烨通讯技术有限公司 | Data transmission method, device, terminal and storage medium |
| CN113709058A (en) * | 2021-07-26 | 2021-11-26 | 普联技术有限公司 | a data transfer method |
| WO2022042386A1 (en) * | 2020-08-26 | 2022-03-03 | 华为技术有限公司 | Method for controlling message sending, network device and system |
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2022
- 2022-07-18 CN CN202210841966.2A patent/CN115396383B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106330756A (en) * | 2015-07-03 | 2017-01-11 | 华为技术有限公司 | A data transmission method and device |
| CN105760452A (en) * | 2016-02-04 | 2016-07-13 | 深圳市嘉力达实业有限公司 | Method and system for collection, processing and storage of high-concurrency mass data |
| CN108322479A (en) * | 2018-03-06 | 2018-07-24 | 深圳辉烨通讯技术有限公司 | Data transmission method, device, terminal and storage medium |
| WO2022042386A1 (en) * | 2020-08-26 | 2022-03-03 | 华为技术有限公司 | Method for controlling message sending, network device and system |
| CN113709058A (en) * | 2021-07-26 | 2021-11-26 | 普联技术有限公司 | a data transfer method |
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