CN111479355B - Three-cache frame protection method and system for LED playing system - Google Patents
Three-cache frame protection method and system for LED playing system Download PDFInfo
- Publication number
- CN111479355B CN111479355B CN202010305472.3A CN202010305472A CN111479355B CN 111479355 B CN111479355 B CN 111479355B CN 202010305472 A CN202010305472 A CN 202010305472A CN 111479355 B CN111479355 B CN 111479355B
- Authority
- CN
- China
- Prior art keywords
- data
- frame
- space
- buffer
- state
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
Landscapes
- Information Transfer Systems (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Small-Scale Networks (AREA)
- Communication Control (AREA)
Abstract
The invention provides a three-buffer frame protection method and a three-buffer frame protection system for an LED (light emitting diode) playing system, which comprise the following steps: establishing three cache spaces in an LED playing system, setting the three cache spaces to be in a data empty state, and respectively setting the three cache spaces to be a first cache space, a second cache space and a third cache space; each of the cache spaces includes 4 states: a data null state, a data receiving state, a data frame complete receiving state and a data frame sending state; when a buffer space finishes sending data frames, the buffer space is converted into an idle state, when the system broadcasts the next frame, the buffer space in the data frame receiving finishing state is inquired in sequence, if the buffer space does not exist, the system stops not sending the data frames, and if the buffer space exists, the buffer space with the front bit number is processed preferentially. The invention adopts the three-cache technology, does not cause the loss of the frame data part and achieves the purpose of frame protection; and the efficiency of data frame processing is improved, and the sending frame frequency of the LED playing system is correspondingly improved.
Description
Technical Field
The invention relates to the technical field of LED landscape lighting and brightening, in particular to a three-cache frame protection method and a three-cache frame protection system for an LED playing system.
Background
With the intelligent development of the LED industry technology, the LED playing control system is widely applied to scenic spots and buildings. The traditional LED playing control system basically adopts double-cache storage space for receiving and sending data frames; when the data frame rate sent by the PC end is greater than that sent by the port of the LED playing system, the LED playing system adopts double-buffer storage, and when the data frame sent by the port of the LED playing system is finished, another buffer may still receive a new data frame, so that the problems of waiting at the sending end and frame rate reduction at the sending end occur.
Disclosure of Invention
The object of the present invention is to solve at least one of the technical drawbacks mentioned.
Therefore, the present invention is directed to a method and a system for frame protection of three buffers in an LED display system.
In order to achieve the above object, an embodiment of the present invention provides a frame protection method for three buffers of an LED playing system, including the following steps:
step S1, establishing three buffer spaces in the LED playing system, setting the buffer spaces as data empty states, and respectively setting the buffer spaces as a first buffer space, a second buffer space and a third buffer space;
in step S2, each of the buffer spaces includes 4 states: a data null state, a data receiving state, a data frame complete receiving state and a data frame sending state; wherein, each buffer space is changed, idled, received and transmitted in the 4 states;
the data frame sending of the PC end exceeds the data frame playing speed of the LED playing system, when a cache space for receiving the data frame of the PC end is from a receiving state to a finishing state, the system occupies another cache space and is also sending the data frame, and the next data frame of the PC end arrives, the LED playing system sequentially inquires the cache space in the idle state at present, the cache space with the bit number in the front and in the idle state preferentially receives the data frame of the current PC end, and if no idle cache space exists, the cache space with the bit number in the front and in the finishing receiving state is occupied for data coverage updating;
step S3, when a buffer space finishes sending data frame, the buffer space changes to idle state, and when the system broadcasts the next frame, it will sequentially query the buffer space currently in the data frame receiving finish state, if not, the system stops not sending data frame, if yes, it processes the buffer space with the bit number before preferentially.
Further, in the step S1, the frame rate of the PC-side sending data is higher than that of the LED playing system port sending data.
Further, when the first buffer space finishes sending a frame of data, the first buffer space is changed to a data empty state, the second buffer space is in a stage of receiving a data frame, and at this time, the third buffer space stores a frame of complete data for sending.
Further, in the process of sending data in the third buffer space, the second buffer space receives one frame of complete data, and at this time, the first buffer space can receive the next frame of data.
The invention also provides a three-buffer frame protection system for an LED playing system, which comprises: the storage device and the data transmission control device are arranged in the LED playing system, the storage device is divided into a first cache space, a second cache space and a third cache space, wherein each cache space comprises 4 states: a data null state, a data receiving state, a data frame complete receiving state and a data frame sending state; wherein, each buffer space is changed, idled, received and transmitted in the 4 states;
the data transmission control device is used for detecting that when a PC end starts to send data, the data frame sending of the PC end exceeds the data frame playing speed of the LED playing system, when a cache space for receiving the data frame of the PC end is from a receiving state to a finishing state, the system occupies the other cache space and also sends the data frame, and when the next data frame of the PC end arrives again, the LED playing system sequentially inquires the cache space in the idle state at present, the cache space with the bit number in the previous idle state preferentially receives the data frame of the current PC end, and if no idle cache space exists, the cache space with the bit number in the previous idle state and in the receiving finishing state is occupied for data coverage updating;
when a buffer space finishes sending data frames, the buffer space is converted into an idle state, when the system broadcasts the next frame, the buffer space in the data frame receiving finishing state is inquired in sequence, if the buffer space does not exist, the system stops not sending the data frames, and if the buffer space exists, the buffer space with the front bit number is processed preferentially.
Further, the frame rate of data sent by the PC end is higher than that of the data sent by the LED playing system port.
Further, when the first buffer space finishes sending a frame of data, the first buffer space is changed to a data empty state, the data transmission control device controls the second buffer space to be in a stage of receiving a data frame, and at this time, the third buffer space stores a frame of complete data for sending.
Further, in the process of sending data in the third buffer space, the data transmission control device controls the second buffer space to receive one frame of complete data, and at this time, the first buffer space can receive the next frame of data.
According to the three-buffer frame protection method and the three-buffer frame protection system for the LED playing system, a three-buffer technology is adopted, one frame of data can be completely received and transmitted, the loss of the frame of data is avoided, and the purpose of frame protection is achieved; the efficiency of processing the data frame is improved, and the sending frame frequency of the LED playing system is correspondingly improved; three cache storage spaces are established, the existing requirements can be met, resource waste is avoided, and the control process is simpler.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a flowchart of a three-buffer frame protection method for an LED playing system according to an embodiment of the present invention;
fig. 2 is a structural diagram of a frame protection system for three buffers of an LED playing system according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
The invention provides a three-cache frame protection method and a three-cache frame protection system for an LED playing system, which realize the processing of data frames by establishing three cache storage spaces in an LED playing control system and have simple control process.
As shown in fig. 1, the method for protecting a frame of a triple buffer of an LED playing system according to an embodiment of the present invention includes the following steps:
step S1, three buffer spaces are established in the LED playing system and are all set to a data empty state, namely, a first buffer space, a second buffer space, and a third buffer space.
Preferably, the frame rate of data sent by the PC side is higher than that of data sent by the port of the LED playing system. It should be noted that the frequency of the data frames sent by the PC is not necessarily higher than the frequency of the data frames played by the LED playing system, and it can only be said that the frequency of the data frames is higher in many applications.
In an embodiment of the present invention, the first cache space, the second cache space, and the third cache space include the following four states: data null, data frame receiving integrity and data frame sending.
In step S2, each of the buffer spaces includes 4 states: a data null state, a data receiving state, a data frame complete receiving state and a data frame sending state; wherein, each buffer space is changed, idled, received and transmitted in the 4 states;
the data frame sending of the PC end exceeds the data frame playing speed of the LED playing system, when a cache space for receiving the data frame of the PC end is from a receiving state to a finishing state, the system occupies the other cache space and is still sending the data frame, and the next data frame of the PC end arrives, the LED playing system sequentially inquires the cache space in the idle state at present, the cache space with the bit number in the front and in the idle state preferentially receives the data frame of the current PC end, and if no idle cache space exists, the cache space with the bit number in the front and in the finishing receiving state is occupied for data coverage updating.
Step S3, when a buffer space finishes sending data frame, the buffer space changes to idle state, and when the system broadcasts the next frame, it will sequentially query the buffer space currently in the data frame receiving finish state, if not, the system stops not sending data frame, if yes, it processes the buffer space with the bit number before preferentially.
The principle of three-buffer frame protection is described below with the frame rate of data sent by the PC being 3.5 times the frame rate of data sent by the LED playback system port:
(1) the method comprises the following steps that firstly, a first cache space, a second cache space and a third cache space are in a data empty state, a PC (personal computer) end starts to send data, the first cache space is in a data frame receiving state from data idling, and when the first cache space receives a frame of complete data, the first cache space is immediately converted into a data frame to be sent;
(2) because the frame rate of data sent by the PC end is fast, in the process of sending data frames by the first cache space, second frame data of the PC end is completely stored in the second cache space, third frame data of the PC end is completely stored in the third cache space, but because the frame rate of the data sent by the PC end is 3.5 times of the frame rate of the data sent by the port of the LED playing system, the first cache space still sends data, and fourth frame data of the PC end is stored in the second cache space to cover old data in the second cache space;
(3) when the first cache space finishes sending frame data, the first cache space is converted into a data space, the second cache space is in a stage of receiving data frames, and at the moment, the third cache space stores a frame of complete data which can be used for sending;
(5) in the process of sending the third cache space, the second cache space receives a frame of complete data, and the first cache space can receive the next frame of data; the data frame processing is completed according to the above principle.
As shown in fig. 2, the present invention further provides a three-buffer frame protection system for an LED playing system, including: the storage device 100 is divided into a first buffer space 1, a second buffer space 2 and a third buffer space 3, wherein the first buffer space 1, the second buffer space 2 and the third buffer space 3 are all set to be in a data empty state initially. Each cache space includes 4 states: a data null state, a data receiving state, a data frame complete receiving state and a data frame sending state; wherein, each buffer space changes in the 4 states, and is idle, receiving completing and sending.
Preferably, the frame rate of data sent by the PC side is higher than that of data sent by the port of the LED playing system. It should be noted that the frequency of the data frames sent by the PC is not necessarily higher than the frequency of the data frames played by the LED playing system, and it can only be said that the frequency of the data frames is higher in many applications.
The data transmission control device 200 is used for sending a data frame at a PC end beyond the playing speed of a data frame of an LED playing system, when a cache space for receiving the data frame at the PC end is from a receiving state to a finishing state, the system occupies the other cache space and is also sending the data frame, and the next data frame at the PC end arrives, the LED playing system sequentially inquires the cache space at the current idle state, the cache space with the bit number at the front and the idle state preferentially receives the data frame at the current PC end, and if no idle cache space exists, the cache space with the bit number at the front and the receiving finishing state is occupied for data coverage updating;
when a buffer space finishes sending data frames, the buffer space is converted into an idle state, when the system broadcasts the next frame, the buffer space in the data frame receiving finishing state is inquired in sequence, if the buffer space does not exist, the system stops not sending the data frames, and if the buffer space exists, the buffer space with the front bit number is processed preferentially.
If the speed of the PC end is more than 3 times of the playing speed of the system, the data frame can be selectively overwritten and updated, but the played data is a complete data frame.
According to the three-buffer frame protection method and the three-buffer frame protection system for the LED playing system, a three-buffer technology is adopted, one frame of data can be completely received and transmitted, the loss of the frame of data is avoided, and the purpose of frame protection is achieved; the efficiency of processing the data frame is improved, and the sending frame frequency of the LED playing system is correspondingly improved; three cache storage spaces are established, the existing requirements can be met, resource waste is avoided, and the control process is simpler.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention. The scope of the invention is defined by the appended claims and their full range of equivalents.
Claims (6)
1. A three-buffer frame protection method for an LED playing system is characterized by comprising the following steps:
step S1, establishing three buffer spaces in the LED playing system, setting the buffer spaces as data empty states, and respectively setting the buffer spaces as a first buffer space, a second buffer space and a third buffer space;
in step S2, each of the buffer spaces includes 4 states: a data null state, a data receiving state, a data frame complete receiving state and a data frame sending state; wherein, each buffer space is changed, idled, received and transmitted in the 4 states; the data frame sending of the PC end exceeds the data frame playing speed of the LED playing system, when a cache space for receiving the data frame of the PC end is from a receiving state to a finishing state, the system occupies another cache space and is also sending the data frame, and the next data frame of the PC end arrives, the LED playing system sequentially inquires the cache space in the idle state at present, the cache space with the bit number in the front and in the idle state preferentially receives the data frame of the current PC end, and if no idle cache space exists, the cache space with the bit number in the front and in the finishing receiving state is occupied for data coverage updating;
step S3, when a buffer space finishes sending data frame, the buffer space changes to idle state, when the system broadcasts the next frame, it will inquire the buffer space in the data frame receiving finish state, if not, the system stops not sending data frame, if yes, it processes the buffer space with the bit number in front preferentially;
when the first buffer space finishes sending frame data, the first buffer space is converted into a data empty state, the second buffer space is in a stage of receiving data frames, and at the moment, the third buffer space stores a frame of complete data for sending.
2. The method for frame protection of triple buffer of LED playing system according to claim 1, wherein in said step S1, the PC side sending data frame rate is higher than the LED playing system port sending data frame rate.
3. The method as claimed in claim 1, wherein when the third buffer space transmits data, the second buffer space receives a frame of complete data, and the first buffer space can receive the next frame of data.
4. A three-buffer frame protection system for an LED playback system, comprising: the storage device and the data transmission control device are arranged in the LED playing system, the storage device is divided into a first cache space, a second cache space and a third cache space, wherein each cache space comprises 4 states: a data null state, a data receiving state, a data frame complete receiving state and a data frame sending state; wherein, each buffer space is changed, idled, received and transmitted in the 4 states;
the data transmission control device is used for detecting that when a PC end starts to send data, the data frame sending of the PC end exceeds the data frame playing speed of the LED playing system, when a cache space for receiving the data frame of the PC end is from a receiving state to a finishing state, the system occupies the other cache space and also sends the data frame, and when the next data frame of the PC end arrives again, the LED playing system sequentially inquires the cache space in the idle state at present, the cache space with the bit number in the previous idle state preferentially receives the data frame of the current PC end, and if no idle cache space exists, the cache space with the bit number in the previous idle state and in the receiving finishing state is occupied for data coverage updating;
when a buffer space finishes sending data frames, the buffer space is converted into an idle state, when the system broadcasts the next frame, the buffer space in the data frame receiving finishing state at present is sequentially inquired, if the buffer space does not exist, the system stops not sending the data frames, and if the buffer space exists, the buffer space with the front bit number is preferentially processed;
when the first buffer space finishes sending frame data, the first buffer space is converted into a data empty state, the data transmission control device controls the second buffer space to be in a data frame receiving stage, and at the moment, the third buffer space stores a frame of complete data for sending.
5. The frame protection system for triple buffer of LED playback system of claim 4, wherein a PC side transmission data frame rate is higher than the LED playback system port transmission data frame rate.
6. The system as claimed in claim 4, wherein the data transmission control device controls the second buffer space to receive a frame of complete data while the third buffer space is transmitting data, and the first buffer space is available for receiving the next frame of data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010305472.3A CN111479355B (en) | 2020-04-17 | 2020-04-17 | Three-cache frame protection method and system for LED playing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010305472.3A CN111479355B (en) | 2020-04-17 | 2020-04-17 | Three-cache frame protection method and system for LED playing system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111479355A CN111479355A (en) | 2020-07-31 |
| CN111479355B true CN111479355B (en) | 2021-08-13 |
Family
ID=71755400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010305472.3A Active CN111479355B (en) | 2020-04-17 | 2020-04-17 | Three-cache frame protection method and system for LED playing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111479355B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101567849A (en) * | 2009-04-30 | 2009-10-28 | 炬才微电子（深圳）有限公司 | Data buffer caching method and device |
| CN103401888A (en) * | 2013-08-21 | 2013-11-20 | 杭州浦禾通信技术有限公司 | Multimedia data receiving and processing method and device |
| CN109697767A (en) * | 2018-12-29 | 2019-04-30 | 华为技术有限公司 | Data processing method, relevant device and computer storage medium |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100459695C (en) * | 2005-08-18 | 2009-02-04 | 腾讯科技（深圳）有限公司 | Method of transmitting video data, and transmission system |
-
2020
- 2020-04-17 CN CN202010305472.3A patent/CN111479355B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101567849A (en) * | 2009-04-30 | 2009-10-28 | 炬才微电子（深圳）有限公司 | Data buffer caching method and device |
| CN103401888A (en) * | 2013-08-21 | 2013-11-20 | 杭州浦禾通信技术有限公司 | Multimedia data receiving and processing method and device |
| CN109697767A (en) * | 2018-12-29 | 2019-04-30 | 华为技术有限公司 | Data processing method, relevant device and computer storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111479355A (en) | 2020-07-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| USRE39763E1 (en) | Isochronous channel having a linked list of buffers | |
| US6922408B2 (en) | Packet communication buffering with dynamic flow control | |
| US9880875B2 (en) | Apparatus and method for hardware-based task scheduling | |
| US7689694B2 (en) | Process management apparatus, computer systems, distributed processing method, and computer program for avoiding overhead in a process management device | |
| CN101151851B (en) | Host and network adapter for networking offload in server environment | |
| US7496108B2 (en) | Method for dynamic management of TCP reassembly buffers | |
| CN102629240B (en) | Method and device for serial communication | |
| US20040088434A1 (en) | Communication node for enabling interworking of network using request/response based data transfer and network using non-request/response based data transfer | |
| US6189053B1 (en) | Communication control system utilizing a shared buffer managed by high and low level protocols | |
| US7412556B2 (en) | Method and system for master devices accessing slave devices | |
| WO1996009708A3 (en) | Simultaneous transmission of speech and data on a mobile communications system | |
| EP1482684A2 (en) | Apparatus and method for minimizing transmission delay in a data communication system | |
| CN111479355B (en) | Three-cache frame protection method and system for LED playing system | |
| EP1768024A1 (en) | Processing management device, computer system, distributed processing method, and computer program | |
| US20060267998A1 (en) | Systems and methods for management of parameters in a multi-node graphics system | |
| US7113516B1 (en) | Transmit buffer with dynamic size queues | |
| US20050007953A1 (en) | Resource management device, resource management method and recording medium | |
| CN101964751B (en) | Transmission method and device of data packets | |
| WO2005109185A1 (en) | A method for improving efficiency of events transmission and processing in digital television receiving device | |
| US7924791B2 (en) | Method of transmitting data packets between two slave units and a master unit comprising two processors | |
| EP2585923A2 (en) | Direct memory access engine physical memory descriptors for multi-media demultiplexing operations | |
| CN117271137A (en) | Multithreading data slicing parallel method | |
| US20100145480A1 (en) | Information recording/reproducing apparatus and information recording/reproducing method | |
| CN101924865B (en) | Method for quickly obtaining data of set top box | |
| US20030212839A1 (en) | System including real-time data communication features |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |