CN114710323A - Cloud desktop device based on block chain and data processing method - Google Patents
Cloud desktop device based on block chain and data processing method Download PDFInfo
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- H—ELECTRICITY
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
- H04L63/0876—Network architectures or network communication protocols for network security for authentication of entities based on the identity of the terminal or configuration, e.g. MAC address, hardware or software configuration or device fingerprint
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
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Abstract
The invention discloses a cloud desktop device based on a block chain and a data processing method, wherein a system architecture comprises a client, the client is a remote desktop client which displays real-time desktop pictures and receives audio and video frame data coded by a server, and the cloud desktop device comprises two working threads: 1) for processing user input; 2) for rendering audio and video frames. Compared with the prior art, the invention has the advantages that: 1) a cloud desktop terminal node enters a block chain; 2) the method comprises the steps that desktop data of a cloud desktop user are subjected to no sensing uplink; 3) automatically chaining when the occupancy of a cloud desktop data network or a CPU is high; 4) enterprises and public institutions or campuses support regional alliance network deployment, and are combined into one, so that data security is protected, and deployment cost is saved.
Description
Technical Field
The invention relates to a desktop cloud technology, in particular to a cloud desktop device based on a block chain and a data processing method.
Background
With popularization of cloud computing technology, VDI desktop cloud technology is applied more and more in education industry, and multiple windows desktops can be virtualized on a terminal X86 computer through the technology, so that each user has a function of a special windows desktop. However, the VDI also has potential data safety hazards, and the desktop data safety is problematic, so that the operation content of the desktop cannot be monitored. No matter in the class patrol scene or the office scene of the school, the data needs to be stored to the cloud end regularly and linked.
With the rapid development of internet technology and streaming media technology, cloud desktops tend to gradually replace traditional desktops. The current investment of traditional operators is the greatest. For operators, the existing system is fully utilized to create more income, which is an important service for improving data ARPU, and the advantages of the TD-LTE network can be displayed, so as to further encourage customers to use more data traffic, improve customer loyalty and satisfaction, and reduce customer churn rate.
Disclosure of Invention
The technical problems to be solved by the invention are that the existing system has potential data safety hazards, is easy to generate desktop data safety problems, cannot monitor the operation content of the desktop, is inconvenient to operate, consumes a large amount of manpower and material resources and cannot meet actual requirements.
In order to solve the technical problems, the technical scheme provided by the invention is as follows: a cloud desktop device based on a block chain and a data processing method are provided, a system architecture comprises a client, the client is a remote desktop client which displays real-time desktop pictures, receives audio and video frame data coded by a server and comprises two working threads: 1) for processing user input; 2) for rendering audio and video frames;
the cloud desktop data processing device of the block chain consists of an arm chip and an SOC embedded program and is used for preventing chain-entering data from entering from other terminals;
the cloud desktop data processing method of the block chain comprises the following steps:
the method comprises the steps that firstly, a cloud desktop of a block chain is set, a block chain cloud desktop terminal device is mainly set, the block chain cloud desktop terminal device is composed of a Mars block chain SOC chip and a general RK3288 chip, and peripheral equipment is mainly designed aiming at the block chain cloud desktop and added with LVDS screen pointing equipment;
secondly, setting an RTSP (real time streaming protocol), wherein the RTSP is used for controlling the session of the bidirectional transmission of a plurality of data;
thirdly, detecting the bandwidth;
fourthly, identity authentication, namely, the cloud desktop client takes the MAC address of the terminal equipment and takes the MAC address as a user name and a password; the user name/password mode is the simplest and more common identity authentication method, and all users set the passwords used by themselves, so that only the users know the passwords by default. As long as the user can correctly input the password, the computer will consider the identity of the operator who inputs the password to be legitimate. In fact, many users forget the password, and often use a relatively simple and meaningful character string as the password, such as the birthday, the telephone number, the spelling of the name pinyin, etc. These passwords can be easily guessed, and even some people copy the passwords on paper in a place which is considered to be safe in order to prevent forgetting the passwords, so that the passwords are easy to leak. Even if the two situations do not exist, the user password is not leaked, but because the user password is static data, the data can be transmitted in a computer memory and a network in the process of verifying the system, and after logging in for many times, because the verification information used in each verification is the same, the Trojan programs residing in the computer memory and the monitoring equipment existing in the network can easily intercept the information. Therefore, the authentication method using the user name/password is extremely insecure. The Mac address is a unique identification of each device.
Fifthly, capturing the desktop data of the cloud desktop user, wherein the system firstly detects whether the user logs in, if not, the desktop data capturing program is not started, and after the user is confirmed to log in, the system starts the desktop data capturing program; the primary objective detects network or system anomalies resulting in a user experience of use.
Sixthly, chaining the block chain cloud desktop data, and the method comprises the following steps: 1) the two services are on the same server and directly communicate with each other through a pipe or a shared memory IPC process; 2) the two services are not distributed deployment on the same server and communicate through a RESTful interface.
Compared with the prior art, the invention has the advantages that: 1) a cloud desktop terminal node enters a block chain; 2) the method comprises the steps that desktop data of a cloud desktop user are subjected to non-sensing uplink; 3) automatically chaining when the occupancy of a cloud desktop data network or a CPU is high; 4) enterprises and public institutions or campuses support regional alliance network deployment, and are combined into one, so that data security is protected, and deployment cost is saved.
Further, the client architecture design includes: 1) a Desktopcloud transplant layer; 2) a desktop cloud integration layer.
Further, the desktop cloud transplantation layer aims at adapting the system of the device, including windows, Linux, Android and iOS systems, and implementing the API provided by the adaptation layer for different systems.
Further, the DesktopCloud integration layer is used for adapting the hardware of different devices to perform audio decoding.
Further, the setting of the RTSP protocol in the second step is specifically as follows: 1) the server provides rich audio and video content and time synchronization information to the client;
2) providing a channel for updating remote control information of a server and a client command or state;
3) providing a data transmission mode;
4) a data transfer mechanism format is provided.
Further, the grabbing process of the fifth step is as follows: and the capture program runs in the cloud desktop server, and the cloud desktop service captures data and then transmits the data to the block chain service through the RESTful interface.
Further, the RESTful interface communication flow in the sixth step is as follows: the data acquired from the blockchain cloud desktop terminal is transmitted to the blockchain cloud service through the following uniform data interface, real-time network data is detected before a user logs in, a probe value is uploaded, and if the probe value is lower than the lowest network standard of 5Mbps, the application is directly quitted; if the number of the user logins is more than 5Mbps, linking the user login information; during the use process of a user, all audio and video control information data are linked up in real time; and uploading the user desktop data according to the background setting time point.
Drawings
Fig. 1 is a block chain cloud desktop system architecture diagram of a cloud desktop device and a data processing method based on a block chain.
Fig. 2 is a architecture diagram of a cloud desktop terminal with a wooden star block chain based on a cloud desktop device with a block chain and a data processing method.
Fig. 3 is a block chain cloud desktop acquisition control instruction data module diagram of a cloud desktop device and a data processing method based on a block chain.
Fig. 4 is a block chain based cloud desktop apparatus and a block chain based cloud desktop acquisition network probe data timing diagram of a data processing method.
Fig. 5 is a sequence diagram of acquiring user login data by a block chain cloud desktop of the cloud desktop device and the data processing method based on the block chain.
Fig. 6 is a flow of acquiring user desktop data by a cloud desktop of a block chain-based cloud desktop device and a data processing method.
Fig. 7 is a block chain based cloud desktop device and a block chain based cloud desktop data uplink process of a data processing method.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
In specific implementation of the present invention, as shown in the embodiments of fig. 1 to 7, the system architecture includes a client, where the client is a remote desktop client that displays real-time desktop images, receives audio and video frame data encoded by a server, and includes two working threads: 1) for processing user input; 2) for rendering audio and video frames;
the cloud desktop data processing device of the block chain is composed of an arm chip and an SOC embedded program and is used for preventing chain-entering data from entering from other terminals;
in order to enable the client to adapt to different devices as much as possible, the invention is specially provided with two layers of design, one is a desktop cloud transplanting layer, and the layer is mainly used for adapting to the system of the device and comprises a Windows system, Linux, Android, iOS and the like. Therefore, the API provided by the adaptation layer is realized aiming at different systems; the other is a desktop audio integration layer, which is used to adapt the hardware of different devices for audio decoding, and because different devices have different chip manufacturers, the provided DSP SDK is different.
When each function is realized, a test program flow needs to be designed elaborately, a test function covers a path, and test function omission is avoided.
The file system safety test and the compatibility test of the file system mean that a plurality of other file systems can be supported. Such as file storage format compatibility, file deletion identification compatibility, API standard interface compatibility, and device driver compatibility. Resource sharing (including processors, I/O devices, programs, data, etc.) has created a need for protection testing, which can be done on different objects:
(1) isolation protection (Isolation): the objects are isolated with no sharing or communication activity.
(2) Sharing protection: the shared object can be set to be public or private.
(3) Access restriction protection: ensuring that only authorized access can occur.
(4) Dynamic protection: the shared object is dynamically generated.
(5) Restricted object usage protection: not only is access restricted to the object, but where the object is used.
The synchronous function test, the synchronous content has two types of operation components: mutual exclusion event, mutual exclusion is the synchronization between different threads that are mutually exclusive, and it should implement the following functions: the locking mutex is mutually exclusive with the unlocking (releasing) mutex.
In the test of multimedia processing, the module needs a server platform to provide decoding and video and audio presentation functions, and can find a corresponding decoding mode for any encoding format, and the invention only supports the video and audio formats of several standards, such as H264, MPEG4 and AAC. For the server, we list only the basic functions of the server below: (1) video frame decoder and rendering, (2) audio frame decoder and rendering.
The client desktop cloud is a small application, and most of the memory occupied is video frame buffering, so it is easy to calculate the memory requirement by using the following formula:
memory requirements total (target video resolution wide) x (target video resolution high) x3+600 KB (module of kernel) + software a/V decoder and rendering used by memory.
For example: the resolution of the target platform is 720x1280, and if a hardware decoder is used, the requirement of the desktop cloud client on the memory is as follows: 720x1280x3+600x1024 equal to 3379200 bytes.
And the block chain terminal equipment program links the data generated in use to the uplink, wherein the data comprises video stream instruction control data, network flow data, user login information data and user desktop data. The block chain cloud desktop terminal device mainly comprises a Jupiter block chain SOC chip and a general RK3288 chip, and peripheral equipment is mainly designed aiming at the block chain cloud desktop and added with LVDS touch screen equipment. The USB peripheral port is removed for security. The configuration of hardware configuration 2GDDR memory +8G storage can fully meet the requirement of block chain cloud desktop service.
A Jupiter block chain SOC chip in a block chain cloud desktop terminal device is mainly a block chain cloud desktop user login password and a data chaining security authentication interface, token information needs to be obtained from Mooseen before all data are sent out, and the data packet header information comprises a security token. When the receiving end receives the data packet, the moose token information, mainly in a public and private key manner, needs to be authenticated first to ensure that all uplink data sources are unique.
The cloud desktop data processing method of the block chain comprises the following steps:
the method comprises the steps that firstly, a cloud desktop of a block chain is set, a block chain cloud desktop terminal device is mainly set, the block chain cloud desktop terminal device is composed of a Mars block chain SOC chip and a general RK3288 chip, and peripheral equipment is mainly designed aiming at the block chain cloud desktop and added with LVDS screen pointing equipment;
secondly, setting an RTSP (real time streaming protocol), wherein the RTSP is used for controlling the session of the bidirectional transmission of a plurality of data; similar to HTTP, it is an application layer protocol, but RTSP is interactive real-time streaming information for controlling audio and video data interacted by users, and implementing real-time data control between win32 client and ISS server, and the purpose of the protocol is to control the session of bidirectional transmission of multiple data. All audio and video control information data need to be linked up.
Thirdly, detecting the bandwidth; under a normal condition, two probes are called to detect the bandwidth in the whole cloud desktop process, one is that different configuration files are selected according to different current network states before the desktop is operated, and the purpose is to enable a client to tell a server about specific desktop transmission parameters so as to achieve the best desktop experience; another call is in desktop operation, if QoS occurs, the client will tell the server about new transmission parameters based on new network conditions.
The configuration text is a set of parameters that affect the desktop experience, as explained in detail below:
bitrate, simply, how large data the server sends to the client in a unit time. The larger the data is, the richer the desktop picture is, the more vivid the desktop picture is, the better the user experience is, but the larger the required bandwidth is, so that how large the code stream can be transmitted is determined according to the network environment where the client is located.
Resolution, i.e. 480p, 720p, 1080p we often say. Likewise, the greater the resolution, the better the user experience, but the greater the network bandwidth used. The factors that determine this parameter are whether the desktop running supports the set resolution in addition to the network environment.
FPS (frame per second frame rate), which is simply the speed of sending desktop pictures by the server, is normally 25-60, and is actually not effective when being higher than 30 people. Normally, if Resolution is 1080p, the frame rate is set to 60, otherwise, the standard of high definition is not achieved.
Codec, which is to describe the coding modes supported by the client. The video aspect is H264, MPEG4, MPEG3, etc., and the audio aspect is AAC, PCM, etc. The client tells the server the best audio format to support.
Fourthly, identity authentication, namely, the cloud desktop client takes the MAC address of the terminal equipment and takes the MAC address as a user name and a password;
fifthly, capturing the desktop data of the cloud desktop user, wherein the system firstly detects whether the user logs in, if not, the desktop data capturing program is not started, and after the user is confirmed to log in, the system starts the desktop data capturing program;
sixthly, chaining the block chain cloud desktop data, and the method comprises the following steps: 1) the two services are on the same server and directly communicate with each other through a pipe or a shared memory IPC process; 2) the two services are not distributed deployment on the same server and communicate through a RESTful interface.
Further, in the embodiment shown in fig. 3, the client architecture design includes: 1) a Desktop graft layer; 2) a desktop cloud integration layer.
Further, in the embodiment shown in fig. 4, the desktop cloud migration layer is intended to adapt a system of the device, including windows, Linux, Android, and iOS systems, and implement an API provided by the adaptation layer for different systems.
Further, in the embodiment shown in fig. 5, the desktop integrated layer is used for audio decoding adapted to hardware of different devices.
Further, in the embodiment shown in fig. 6, the setting of the RTSP protocol in the second step is specifically as follows: 1) the server provides rich audio and video content and time synchronization information to the client;
2) providing a channel for updating remote control information of a server and a client command or state;
3) providing a data transmission mode;
4) a data transfer mechanism format is provided.
The Win32 client can obtain streaming media data from the ISS server, and the ISS server can obtain user input desktop control commands from the Win32 client and simultaneously support protocol authentication and encryption.
The format definition of RTSP URL, host is a legal IP address or domain name, ISS _ ID is a Server ID, such as:
(rtsp：//host[：port]/ISS_id)
session request and response identification, one for each request. The message of the request includes header information of what the sender requires or status update, and also the specific resource, protocol version. Each response message consists of a message header, a status code and the specific information of the response.
The ISS session processing includes several commands as follows:
SETUP: after receiving the setup information with the URL sent by the client, the server applies for a server resource to take charge of the session, which is mainly an initialization process for the server;
PLAY: if the SETUP is successful, the ISS service sends the audio and video and starts to receive and process a remote controller instruction sent by the client;
TEARDOWN: if the command is sent by the client, the ISS service stops sending the audio and video data and stops processing the remote controller command after receiving the command. If the instruction is sent by the server, the server program tells the client that the corresponding ISS can not pronounce the video data any more.
All audio and video control instructions of a user need to acquire token information through a Mooseen SOC according to a specified format, and then each piece of control protocol instruction data is linked up in real time.
Further, in the embodiment shown in fig. 6, the grabbing process of the fifth step is as follows: and the capture program runs in the cloud desktop server, and the cloud desktop service captures data and then transmits the data to the block chain service through the RESTful interface.
Further, in the embodiment shown in fig. 6, the RESTful interface communication flow in the sixth step is as follows: the data acquired from the blockchain cloud desktop terminal is transmitted to the blockchain cloud service through the following uniform data interface, real-time network data is detected before a user logs in, a probe value is uploaded, and if the probe value is lower than the lowest network standard of 5Mbps, the application is directly quitted; if the number of the user logins is more than 5Mbps, linking the user login information; during the use process of a user, all audio and video control information data are linked up in real time; and chaining the user desktop data according to the background setting time point.
The data request format is as follows, a user login data header instruction mVDI0001, an audio and video instruction data header mVDI0002, a network flow data header mVDI0003 and a user desktop data header mVDI 0004. When the data packet is analyzed, 13-byte private protocol header packet decomposition is firstly carried out, and then the corresponding module is informed to carry out block chain data processing according to different data service types.
While there have been shown and described the fundamental principles and principal features of the invention and advantages thereof, it will be understood by those skilled in the art that the invention is not limited by the embodiments described above, which are given by way of illustration of the principles of the invention, but is susceptible to various changes and modifications without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. A cloud desktop device based on a block chain and a data processing method are characterized in that a system architecture comprises a client, the client is a remote desktop client which displays real-time desktop pictures, receives audio and video frame data coded by a server and comprises two working threads: 1) for processing user input; 2) for rendering audio and video frames;
the cloud desktop data processing device of the block chain consists of an arm chip and an SOC embedded program and is used for preventing chain entering data from entering from other terminals;
the cloud desktop data processing method of the block chain comprises the following steps:
the method comprises the steps that firstly, a cloud desktop of a block chain is set, a block chain cloud desktop terminal device is mainly set, the block chain cloud desktop terminal device is composed of a Mars block chain SOC chip and a general RK3288 chip, and peripheral equipment is mainly designed aiming at the block chain cloud desktop and added with LVDS screen pointing equipment;
secondly, setting an RTSP (real time streaming protocol), wherein the RTSP is used for controlling the session of the bidirectional transmission of a plurality of data;
thirdly, detecting the bandwidth;
fourthly, identity authentication, namely taking the MAC address of the terminal equipment by the cloud desktop client and taking the MAC address as a user name and a password;
fifthly, capturing the desktop data of the cloud desktop user, wherein the system firstly detects whether the user logs in, if not, the desktop data capturing program is not started, and after the user is confirmed to log in, the system then starts the desktop data capturing program;
sixthly, chaining the block chain cloud desktop data, and the method comprises the following steps: 1) the two services are on the same server and directly communicate with each other through a pipe or a shared memory IPC process; 2) the two services are not distributed deployment on the same server and communicate through a RESTful interface.
2. The device according to claim 1, wherein the client architecture design comprises: 1) a Desktop graft layer; 2) a desktop cloud integration layer.
3. The cloud desktop device and the data processing method based on the block chain as claimed in claim 2, wherein: the desktop cloud transplantation layer aims at adapting a system of equipment, including windows, Linux, Android and iOS systems, and realizes API provided by an adaptation layer aiming at different systems.
4. The cloud desktop device and the data processing method based on the block chain as claimed in claim 2, wherein: the Desktop personal integration layer is used for adapting to the hardware of different devices for audio decoding.
5. The cloud desktop device and the data processing method according to claim 1, wherein the RTSP protocol setup in the second step is as follows: 1) the server provides rich audio and video content and time synchronization information to the client;
2) providing a channel for updating remote control information of a server and a client command or state;
3) providing a data transmission mode;
4) a data transfer mechanism format is provided.
6. The cloud desktop device and the data processing method based on the block chain as claimed in claim 1, wherein the capturing process in the fifth step is as follows: and the capture program runs in the cloud desktop server, and the cloud desktop service captures data and then transmits the data to the block chain service through the RESTful interface.
7. The cloud desktop device and the data processing method based on the block chain as claimed in claim 1, wherein the RESTful interface communication flow in the sixth step is as follows: the data acquired from the blockchain cloud desktop terminal is transmitted to the blockchain cloud service through the following uniform data interface, real-time network data is detected before a user logs in, a probe value is uploaded, and if the probe value is lower than the lowest network standard of 5Mbps, the application is directly quitted; if the number of the user logins is larger than 5Mbps, the user login information is uplinked; during the use process of a user, all audio and video control information data are linked up in real time; and chaining the user desktop data according to the background setting time point.
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| CN105763532A (en) * | 2016-01-05 | 2016-07-13 | 杭州华三通信技术有限公司 | Method and device for logging in to virtual desktop |
| CN105872078A (en) * | 2016-05-12 | 2016-08-17 | 中国电子科技网络信息安全有限公司 | Mixed cloud desktop system and management method |
| CN106027679A (en) * | 2016-07-15 | 2016-10-12 | 中兴通讯股份有限公司 | Implementing method, apparatus and system for video conference and cloud desktop terminal |
| CN106453359A (en) * | 2016-11-02 | 2017-02-22 | 河南智业科技发展有限公司 | Dedicated cloud desktop for education based on cloud services |
| WO2021043144A1 (en) * | 2019-09-03 | 2021-03-11 | 杭州趣链科技有限公司 | Blockchain-based evidence collection service system |
| CN111475866A (en) * | 2020-05-09 | 2020-07-31 | 南京工程学院 | Block chain electronic evidence preservation method and system |
| CN111817858A (en) * | 2020-07-27 | 2020-10-23 | 北京金仓幸福科技有限公司 | Block chain data security method based on multiple signatures |
| CN113961289A (en) * | 2021-10-19 | 2022-01-21 | 北京百度网讯科技有限公司 | Data processing method, device, equipment and storage medium |
| CN114116092A (en) * | 2021-11-09 | 2022-03-01 | 北京百度网讯科技有限公司 | Cloud desktop system processing method, cloud desktop system control method and related equipment |
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