CN115834954A - Remote monitoring management system and method based on mobile internet - Google Patents
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Abstract
The invention discloses a remote monitoring management system and a method based on mobile internet, wherein the method comprises the following steps: the mobile terminal establishes long connection with the streaming media module and sends a real-time video playing request to the streaming media module; the streaming media module sends a real-time video acquisition request with a URL parameter to the video acquisition module; the video acquisition module opens a camera of the video acquisition module to start video acquisition after receiving the real-time video acquisition request, and stores each acquired frame image into a local cache region; when the frame data of the local cache region is filled, sending the cache file to the streaming media module according to the URL parameter; and the streaming media module receives the cache file, converts the cache file into a playable video data stream, and transmits the video data stream to the mobile terminal so that the mobile terminal can play online. The invention can reduce the influence caused by the signal intensity of the mobile internet as much as possible so as to improve the image fluency of real-time video transmission.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of video transmission, in particular to a remote monitoring management system and method based on a mobile internet.
[ background of the invention ]
With the development of mobile internet, people have more demands for remotely mastering the current state of a target in real time through mobile terminals such as mobile phones and the like. For example, technicians implement real-time monitoring of agricultural production processes through network connection of mobile phones; for another example, the car owner can conveniently acquire real-time video information of the car in a parking scene through mobile phone application software; for another example, parents remotely monitor the learning condition of children in a kindergarten or a school through a mobile phone. However, the current remote monitoring system is easily limited by the network when transmitting through the mobile internet, especially in an environment with poor network signals, the real-time transmission of pictures is easily blocked, the video playing is not smooth enough, and the use experience of remote monitoring of the user is affected.
Therefore, it is desirable to provide a remote monitoring management system and method based on the mobile internet to overcome the above-mentioned drawbacks.
[ summary of the invention ]
The invention aims to provide a remote monitoring management system and a remote monitoring management method based on the mobile internet, which aim to solve the problem that the existing remote monitoring system is easily limited by the network when being transmitted through the mobile internet and improve the smoothness of the real-time video transmission picture.
In order to achieve the above object, a first aspect of the present invention provides a remote monitoring and management method based on a mobile internet, including the following steps:
the method comprises the steps that a mobile terminal establishes long connection with a streaming media module and sends a real-time video playing request to the streaming media module;
the streaming media module sends a real-time video acquisition request with a URL parameter to a video acquisition module after receiving the real-time video playing request;
the video acquisition module opens a camera of the video acquisition module to start video acquisition after receiving the real-time video acquisition request, and stores each acquired frame of image into a local cache region;
when the frame data of the local cache region is filled, sending a cache file to the streaming media module according to the URL parameter;
and the streaming media module receives the cache file, converts the cache file into a playable video data stream, and sends the video data stream to the mobile terminal so that the mobile terminal can play on line.
In a preferred embodiment, the step of establishing a long connection with a streaming media module at a mobile terminal and sending a real-time video playing request to the streaming media module includes:
after long connection is established with a mobile terminal, long connection information with equipment information of the mobile terminal is stored in a long connection linked list;
traversing the long connections in the long connection linked list at intervals of preset time;
judging whether each long connection has information transmission within a preset time length range, and if so, maintaining the corresponding long connection; if not, the long connection of the mobile terminal is disconnected, and the corresponding long connection information is cleared from the long connection linked list.
In a preferred embodiment, the steps of opening a camera of the video acquisition module to start video acquisition after receiving the real-time video acquisition request, and storing each acquired frame image in a local cache area include;
acquiring information of a camera in a video acquisition module and selecting video input;
acquiring a preset video format and a preset frame format;
applying for frame buffering to a driving unit in a video acquisition module, and mapping the applied frame buffering to a user space;
and all applied frame buffers are queued for storing acquisition data.
In a preferred embodiment, the method further comprises:
when all the applied frame buffers are in the queue, the camera starts to collect videos;
buffering the frames of the acquired data out of the queue;
re-queuing the frame buffer of the transmitted data to the streaming media module;
judging whether a video acquisition stopping instruction is obtained or not, if so, ending video acquisition and closing the camera; and if the result is negative, the camera continues to collect the video.
In a preferred embodiment, the video capture module compresses the captured video data into a local h.264 format video cache file, and sends the video cache file to the streaming media module based on the HTTP protocol.
In a preferred embodiment, the streaming media module comprises a stream pushing unit and a stream processing unit; the method further comprises the steps of:
establishing TCP connection between the flow pushing unit and the flow processing unit;
the stream pushing unit encapsulates an HTTP request through an encoder, and inserts a control type segment into a media stream in a data type segment format in the process of encapsulating the HTTP request;
and the stream pushing unit reads the live stream in the segmented format, sets the live stream in an HTTP request, and sends the HTTP request to the stream processing unit so as to analyze and process the live stream.
In a preferred embodiment, the method further comprises:
the stream processing unit receives and reads the HTTP request, so that a stream name is analyzed in a URL parameter;
the stream processing unit reads the live stream in the segmented format from the HTTP request, processes the data type and the timestamp of each segment and completes the continuity of the stream;
the stream processing unit analyzes and processes each segment of the live stream, judges whether each segment is a data segment or not, and directly performs corresponding processing if the result is negative; if so, adding the media data of the data segments into the live stream corresponding to the URL;
and the stream processing unit sends the live stream to the mobile terminal.
The second aspect of the present invention provides a remote monitoring and management system based on mobile internet, including:
the long connection module is used for establishing long connection between the mobile terminal and the streaming media module;
the mobile terminal is used for sending a real-time video playing request to the streaming media module;
the streaming media module is used for sending a real-time video acquisition request with a URL parameter to the video acquisition module after receiving the real-time video playing request;
the video acquisition module is used for opening a camera of the video acquisition module to start video acquisition after receiving the real-time video acquisition request and storing each acquired frame of image into a local cache area; the streaming media module is further used for sending the cache file to the streaming media module according to the URL parameter when the frame data of the local cache region is filled;
the streaming media module is further configured to receive the cache file, convert the cache file into a playable video data stream, and send the video data stream to the mobile terminal, so that the mobile terminal can perform online playing.
A third aspect of the present invention provides a terminal, which includes a memory, a processor, and a computer program stored in the memory, wherein the computer program, when executed by the processor, implements the steps of the mobile internet-based remote monitoring and management method according to any one of the above embodiments.
A fourth aspect of the present invention provides a computer-readable storage medium storing a computer program, which when executed by a processor implements the steps of the mobile internet-based remote monitoring and management method according to any one of the above embodiments.
The invention provides a remote monitoring management system and a method based on a mobile internet, which firstly ensure the stability of the connection of the mobile internet by establishing the long connection between a mobile terminal and a streaming media module; meanwhile, each acquired frame image is stored in the local cache region, when the frame data of the local cache region is filled, the cache file is sent to the streaming media module according to the URL parameter, so that when the mobile terminal plays the video data stream analyzed and processed by the streaming media, the video acquisition module simultaneously acquires new video information and performs cache processing, namely, through sectional video stream transmission, the influence caused by the signal strength of the mobile internet is reduced as much as possible, and the image smoothness of real-time video transmission is improved.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a flow chart of a remote monitoring management method based on mobile internet according to the present invention;
fig. 2 is a frame diagram of a remote monitoring management system based on the mobile internet according to the present invention.
[ detailed description ] embodiments
In order to make the objects, technical solutions and advantageous effects of the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and the detailed description. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.
Example one
In an embodiment of the present invention, a remote monitoring management method based on a mobile internet is provided, which is used for remotely transmitting a monitoring video to a mobile terminal of a user in real time through the mobile internet, so that the user can remotely know a current state before a target through the mobile terminal. The mobile terminal includes, but is not limited to, an electronic device such as a mobile phone, a tablet computer, and a portable smart watch, which has a networking function and a screen for playing video.
As shown in fig. 1, the mobile internet-based remote monitoring management method includes the following steps S101 to S105.
Step S101, the mobile terminal establishes long connection with the streaming media module and sends a real-time video playing request to the streaming media module.
In this step, a long connection between the mobile terminal and the streaming media module can be realized through a long connection module. Further, long connection modules may be integrated on the streaming media module to reduce the number and volume of physical modules. The long connection means that a plurality of data packets can be continuously transmitted on one connection, so that the long connection process is prevented from being repeated when the data packets are transmitted every time, and the connection stability of the mobile internet is ensured.
Further, step S101 includes:
firstly, after long connection is established with a mobile terminal, long connection information with equipment information of the mobile terminal is stored in a long connection linked list;
secondly, traversing the long connections in the long connection linked list at intervals of preset time (such as 30s, 60s and the like);
finally, judging whether each long connection has information transmission within a preset time length range, and if so, maintaining the corresponding long connection; if the result is negative, the streaming media module does not push the video information or the connection is overtime, the long connection of the mobile terminal is disconnected, and the corresponding long connection information is removed from the long connection linked list.
Step S102, after receiving the real-time video playing request, the streaming media module sends a real-time video acquiring request with a URL (uniform resource locator, which is used to specify a method for representing an information location) parameter to the video acquisition module.
Step S103, after receiving the real-time video acquisition request, the video acquisition module opens a camera thereof to start video acquisition, and stores each acquired frame of image in a local cache area.
In this step, after receiving the real-time video acquisition request, the video acquisition module sequentially performs a camera initialization and video acquisition process.
The initialization process of the camera includes steps S311 to S314.
Step S311, acquiring information of a camera in the video acquisition module and selecting video input;
step S312, acquiring a preset video format and a preset frame format;
step S313, applying for frame buffering to a driving unit in the video acquisition module, and mapping the applied frame buffering to a user space;
step S314, all the applied frame buffers are queued for storing the collected data.
The video capture flow includes steps S321-S324.
In step S321, after all the applied frame buffers are queued, the camera starts to capture video. At this time, it can be considered that the frame buffer unacquired data is in a blank state.
In step S322, the frame with the acquired data is buffered out of the queue. That is, if the frame buffer has already acquired data, the frame buffer can be considered to be no longer in a blank state, and the frame buffer from which data was acquired is removed from the user space.
Step S323, re-enqueue the frame buffer of the transmitted data to the streaming media module. When the data corresponding to the frame buffer is pushed to the streaming media module, the frame buffer can be considered to be converted into a blank state again, and the frame buffer in the blank state can be added into the queue of the user space again.
Step S324, judging whether a video acquisition stopping instruction is obtained or not, if so, ending video acquisition and closing the camera; and if the result is negative, the camera continues to acquire the video.
In the embodiment of the present invention, step S104 is continuously executed, and when the frame data of the local buffer is filled, the buffer file is sent to the streaming media module according to the URL parameter.
Step S105, the streaming media module receives the cache file and converts the cache file into a playable video data stream (e.g. an mp4 format video file), and sends the video data stream to the mobile terminal, so that the mobile terminal can perform online playing.
The frame buffer in the user space is segmented, each segment of frame buffer sequentially and respectively obtains video data, after all the data are obtained by one segment of frame buffer, the video data in the segment of frame buffer can be packaged and sent to the streaming media module, the streaming media module can conveniently analyze and process the corresponding video data, so that a segment of live video stream is obtained, the mobile terminal of a user only needs to use the internet when receiving the live stream, and does not need to play the segment of live stream, and therefore the video data cannot be blocked due to network marketing during playing. Meanwhile, the mobile terminal can synchronously receive the live stream corresponding to the next frame buffer when playing the live stream, thereby eliminating the influence of network fluctuation as much as possible.
Specifically, the video acquisition module compresses the acquired video data into a local h.264 format video cache file, and sends the video cache file to the streaming media module based on an HTTP (HyperText transfer protocol) protocol. The streaming media module comprises a stream pushing unit and a stream processing unit. The stream pushing unit is used for receiving the frame video data sent by the video acquisition module and sending the frame video data to the stream processing unit, and the stream processing unit is used for analyzing and processing the frame video data and pushing the frame video data to the mobile terminal.
Further, the principle of the plug flow unit is as follows: establishing TCP connection between a flow pushing unit and a flow processing unit; packaging the HTTP request through an encoder, and inserting a control type segment into a media stream in a data type segment format in the process of packaging the HTTP request so as to control whether the current connection needs to be disconnected to push the stream again; and reading the live stream in the segmented format, setting the live stream in the HTTP request, and sending the HTTP request to the stream processing unit to perform live stream parsing processing. And stopping pushing after the live streaming is finished.
Further, the principle of the stream processing unit is as follows: receiving and reading an HTTP request, and analyzing a flow name in a URL parameter; reading the live stream in a segmented format from the HTTP request, and processing the data type and the timestamp of each segment to complete the continuity of the stream; analyzing and processing each segment of the live stream, judging whether each segment is a data segment or not, if not, directly performing corresponding processing, for example, for a control type segment, disconnecting the current connection to push the stream again; if so, adding the media data of the data segments into the live stream corresponding to the URL; and sending the live stream to the mobile terminal.
Example two
The invention provides a remote monitoring management system 100 based on a mobile internet, which is used for remotely transmitting a monitoring video to a mobile terminal of a user in real time through the mobile internet so that the user can remotely know the current state of a target through the mobile terminal. It should be noted that the implementation principle and the implementation mode of the remote monitoring and management system 100 based on the mobile internet are consistent with the above-mentioned remote monitoring and management method based on the mobile internet, and therefore, the following description is omitted.
As shown in fig. 2, the mobile internet-based remote monitoring management system 100 includes:
a long connection module 10, configured to establish a long connection between the mobile terminal and the streaming media module;
the mobile terminal 20 is configured to send a real-time video playing request to the streaming media module;
the streaming media module 30 is configured to send a real-time video acquisition request with a URL parameter to the video acquisition module after receiving the real-time video playing request;
the video acquisition module 40 is used for opening a camera of the video acquisition module to start video acquisition after receiving the real-time video acquisition request, and storing each acquired frame image into a local cache region; the device is also used for sending the cache file to the streaming media module according to the URL parameter when the frame data of the local cache region is filled;
the streaming media module 30 is further configured to receive the cache file, convert the cache file into a playable video data stream, and send the video data stream to the mobile terminal, so that the mobile terminal can perform online playing.
In summary, the remote monitoring management system and method based on the mobile internet provided by the invention firstly establish a long connection between the mobile terminal and the streaming media module to ensure the stability of the connection of the mobile internet; meanwhile, each acquired frame image is stored in the local cache region, when the frame data of the local cache region is filled, the cache file is sent to the streaming media module according to the URL parameter, so that when the mobile terminal plays the video data stream analyzed and processed by the streaming media, the video acquisition module simultaneously acquires new video information and performs cache processing, namely, through sectional video stream transmission, the signal intensity influence of the mobile internet is reduced as much as possible, and the image smoothness of video real-time transmission is improved.
EXAMPLE III
The invention provides a terminal, which comprises a memory, a processor and a computer program stored in the memory, wherein the computer program realizes the steps of the mobile internet-based remote monitoring management method according to any one of the above embodiments when being executed by the processor.
Example four
The present invention provides a computer readable storage medium storing a computer program which, when executed by a processor, implements the steps of the mobile internet-based remote monitoring and management method according to any one of the above embodiments.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the system is divided into different functional units or modules to perform all or part of the above-mentioned functions. Each functional unit and module in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one unit, and the integrated unit may be implemented in a form of hardware, or in a form of software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working processes of the units and modules in the system may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the above embodiments, the description of each embodiment has its own emphasis, and reference may be made to the related description of other embodiments for parts that are not described or recited in any embodiment.
Those of ordinary skill in the art will appreciate that the various illustrative elements and method steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the technical solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
In the embodiments provided in the present invention, it should be understood that the disclosed system or apparatus/terminal device and method can be implemented in other ways. For example, the above-described system or apparatus/terminal device embodiments are merely illustrative, and for example, the division of the modules or units is only one logical division, and there may be other divisions when actually implemented, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, systems or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The invention is not limited to only that described in the specification and embodiments, and thus additional advantages and modifications will readily occur to those skilled in the art, and it is not intended to be limited to the specific details, representative apparatus, and illustrative examples shown and described herein, without departing from the spirit and scope of the general concept as defined by the appended claims and their equivalents.
Claims (10)
1. A remote monitoring management method based on mobile internet is characterized by comprising the following steps:
the method comprises the steps that a mobile terminal establishes long connection with a streaming media module and sends a real-time video playing request to the streaming media module;
the streaming media module receives the real-time video playing request and then sends a real-time video acquiring request with a URL parameter to a video acquisition module;
the video acquisition module opens a camera of the video acquisition module to start video acquisition after receiving the real-time video acquisition request, and stores each acquired frame of image into a local cache region;
when the frame data of the local cache region is filled, sending a cache file to the streaming media module according to the URL parameter;
and the streaming media module receives the cache file, converts the cache file into a playable video data stream, and sends the video data stream to the mobile terminal so that the mobile terminal can play on line.
2. The remote monitoring and managing method based on mobile internet as claimed in claim 1, wherein in the step of establishing a long connection with a streaming media module at the mobile terminal and sending a real-time video playing request to the streaming media, the method comprises:
after long connection is established with a mobile terminal, long connection information with equipment information of the mobile terminal is stored in a long connection linked list;
traversing the long connections in the long connection linked list at intervals of preset time;
judging whether each long connection has information transmission within a preset time length range, and if so, maintaining the corresponding long connection; if not, the long connection of the mobile terminal is disconnected, and the corresponding long connection information is cleared from the long connection linked list.
3. The remote monitoring management method based on the mobile internet as claimed in claim 1, wherein the step of opening a camera thereof to start video collection after the video collection module receives the real-time video acquisition request, and storing each collected frame image in a local cache area comprises;
acquiring information of a camera in a video acquisition module and selecting video input;
acquiring a preset video format and a preset frame format;
applying for frame buffering to a driving unit in a video acquisition module, and mapping the applied frame buffering to a user space;
and all applied frame buffers are queued for storing the acquired data.
4. The remote monitoring management method based on mobile internet as claimed in claim 3, further comprising:
when all the applied frame buffers are in the queue, the camera starts to collect videos;
buffering the frames of the acquired data out of the queue;
re-queuing the frame buffer of the transmitted data to the streaming media module;
judging whether a video acquisition stopping instruction is obtained or not, if so, ending video acquisition and closing the camera; and if the result is negative, the camera continues to collect the video.
5. The remote monitoring management method based on mobile internet as claimed in claim 1, wherein the video capture module compresses the captured video data into a local h.264 format video cache file, and transmits the video cache file to the streaming media module based on HTTP protocol.
6. The remote monitoring management method based on mobile internet as claimed in claim 5, wherein the streaming media module comprises a stream pushing unit and a stream processing unit; the method further comprises the steps of:
establishing TCP connection between the flow pushing unit and the flow processing unit;
the stream pushing unit encapsulates an HTTP request through an encoder, and inserts a control type segment into a media stream in a data type segment format in the process of encapsulating the HTTP request;
and the stream pushing unit reads the live stream in the segmented format, sets the live stream in an HTTP request, and sends the HTTP request to the stream processing unit so as to analyze and process the live stream.
7. The remote monitoring management method based on mobile internet as claimed in claim 6, further comprising:
the stream processing unit receives and reads the HTTP request, so that a stream name is analyzed in a URL parameter;
the stream processing unit reads the live stream in the segmented format from the HTTP request, processes the data type and the timestamp of each segment and completes the continuity of the stream;
the stream processing unit analyzes and processes each segment of the live stream, judges whether each segment is a data segment or not, and directly performs corresponding processing if the result is negative; if so, adding the media data of the data segments into the live stream corresponding to the URL;
and the stream processing unit sends the live stream to the mobile terminal.
8. A remote monitoring management system based on mobile internet is characterized by comprising:
the long connection module is used for establishing long connection between the mobile terminal and the streaming media module;
the mobile terminal is used for sending a real-time video playing request to the streaming media module;
the streaming media module is used for sending a real-time video acquisition request with a URL parameter to the video acquisition module after receiving the real-time video playing request;
the video acquisition module is used for opening a camera of the video acquisition module to start video acquisition after receiving the real-time video acquisition request and storing each acquired frame of image into a local cache area; the streaming media module is further used for sending the cache file to the streaming media module according to the URL parameter when the frame data of the local cache region is filled;
the streaming media module is further configured to receive the cache file, convert the cache file into a playable video data stream, and send the video data stream to the mobile terminal, so that the mobile terminal can perform online playing.
9. A terminal, characterized in that the terminal comprises a memory, a processor and a computer program stored in the memory, the computer program, when executed by the processor, implementing the steps of the mobile internet based remote monitoring management method according to any one of claims 1-7.
10. A computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, which when executed by a processor, implements the steps of the mobile internet-based remote monitoring management method according to any one of claims 1 to 7.
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