CN115665111B - Real-time Communication System Based on Law Enforcement Recorder - Google Patents
Real-time Communication System Based on Law Enforcement Recorder Download PDFInfo
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- CN115665111B CN115665111B CN202211343534.5A CN202211343534A CN115665111B CN 115665111 B CN115665111 B CN 115665111B CN 202211343534 A CN202211343534 A CN 202211343534A CN 115665111 B CN115665111 B CN 115665111B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The application discloses a real-time communication system based on a law enforcement recorder, which comprises: the law enforcement recorder is used for collecting video stream data of a user through a camera and audio stream data of the user through a microphone, and transmitting the video stream data and the audio stream data to the salesman terminal in a near field communication mode based on an RTMP (real time protocol) streaming media protocol; the salesman terminal is used for receiving the video stream data and the audio stream data uploaded by the law enforcement recorder, converting the video stream data and the audio stream data from RTMP stream media format into RTC audio stream data and RTC video stream data in RTC format, and uploading the RTC audio stream data and the RTC video stream data to the seat software workbench through VPN; the seat software workbench is used for receiving the RTC audio stream data and the RTC video stream data, fusing the RTC audio stream data and the RTC video stream data, obtaining double-record videos aiming at target users, and storing the double-record videos.
Description
Technical Field
The application relates to the technical field of data transmission and storage, in particular to a real-time communication system based on a law enforcement recorder.
Background
The law enforcement recorder, also called as on-site law enforcement recorder/single police law enforcement video-audio recorder, is a kind of evidence obtaining technical equipment which is worn by police or security personnel and integrates functions of real-time video, audio video recording, photographing, recording and the like when the police or security personnel execute the official business. In the shooting process, the law enforcement recorder can also upload the collected information in real time through a 4G wireless network and the like, so that real-time feedback of the site situation in the law enforcement process is realized. However, in some scenarios, for example, in a banking scenario, the recorder does not support the use of a matching network with a portable tablet computer of a bank, banking information and investigated client information are displayed on the tablet computer, and audio and video recorded by the recorder in real time are stored in the recorder, so that on-site recording information, banking client information and business information are scattered, and the workload of a banking staff for transacting business is increased. Resulting in a lower convenience of use of the recorder.
Disclosure of Invention
Aiming at the technical problem of low convenience in use of a recorder in the prior art, the application provides a real-time communication system based on a law enforcement recorder.
In order to achieve the above purpose, the application is realized by the following technical scheme:
the embodiment of the application provides a real-time communication system based on a law enforcement recorder, which comprises the following components:
the system comprises a law enforcement recorder, a salesman terminal connected with the law enforcement recorder in a short-range communication mode and a seat software workbench connected with the salesman terminal through a VPN;
the law enforcement recorder is used for acquiring video stream data of a target user through a configured camera and audio stream data of the target user through a configured microphone, and transmitting the video stream data and the audio stream data to the salesman terminal in the near field communication mode based on an RTMP streaming media protocol;
the salesman terminal is used for receiving the video stream data and the audio stream data uploaded by the law enforcement recorder, converting the video stream data and the audio stream data from the RTMP stream media format into RTC audio stream data and RTC video stream data in an RTC format, and uploading the RTC audio stream data and the RTC video stream data to the seat software workbench through the VPN;
the seat software workbench is used for receiving the RTC audio stream data and the RTC video stream data, fusing the RTC audio stream data and the RTC video stream data, obtaining double-record videos aiming at the target user, and storing the double-record videos.
In one possible implementation manner, the service operator terminal is configured to send a session establishment request to the seat software workbench and a call request to the law enforcement recorder in response to an initiation of a video operation by a service operator;
the law enforcement recorder is used for calling a configured camera to collect video stream data of a target user and calling a configured microphone to collect audio stream data of the target user according to the calling request;
the seat software workbench is used for inquiring house entering information according to the session establishment request, determining a house number corresponding to the salesman terminal according to the house entering information, and returning the house number to the salesman terminal based on a terminal protocol;
the salesman terminal is used for entering a call state according to the room number, and in the call state, the salesman terminal can enter a room and upload RTC audio stream data and RTC video stream data to the seat software workbench.
In a possible implementation manner, the seat software workbench is used for receiving a room entrance request operation of the salesman terminal based on the room number, transmitting the room entrance request to an audio-video node according to the room entrance request operation of the salesman on the salesman terminal, and calling an audio-video process by calling a command line parameter according to SC state information pushed by the audio-video node so as to switch the audio-video process into a waiting state in an inter-process communication manner.
In one possible implementation manner, the agent software workbench is further configured to notify the waiting state through an inter-process communication manner when the audio and video process is switched to the waiting state.
In one possible implementation, the law enforcement recorder-based real-time communication system further includes: a teller terminal;
the teller terminal is used for switching the audio and video process into a waiting state under the condition that the audio and video process is not in the waiting state according to a house entrance request of a user, and transmitting information corresponding to the waiting state to the teller terminal in an inter-process communication mode under the condition that the audio and video process is switched into the waiting state;
the salesman terminal is used for switching the salesman terminal to a state of entering a video under the condition of receiving the information corresponding to the state to be answered, and sending a CS request to the seat software workbench at regular time.
In one possible implementation manner, the salesman terminal is further configured to send a hang-up request to the seat software workbench in response to an active hang-up operation of a salesman;
the seat software workbench is used for transmitting the hanging-up request to the teller terminal in a transparent transmission and inter-process communication mode;
the teller terminal is used for exiting the entered room under the condition of receiving the hang-up request and reporting the room-exit information to the seat software workbench, so that the seat software workbench can receive any room-entrance request of the teller terminal or the salesman terminal under the condition of receiving the room-exit information.
In a possible implementation manner, the agent software workbench is further used for calling a key machine to generate a disposable data key and issuing the disposable data key and session configuration information to the salesman terminal and a target teller terminal indicated by the session establishment request under the condition that the session establishment request of the salesman terminal is received;
the salesman terminal and the target salesman terminal are used for applying for a request for transmitting data to the seat software workbench according to the session configuration information, and encrypting and uploading the audio and video data stream to be uploaded through the disposable data key under the condition that the seat software workbench returns an instruction for allowing uploading to be received.
In one possible implementation manner, the agent software workbench is specifically configured to check whether a disposable token of the salesman terminal and/or the target salesman terminal is legal or not when the request for transmitting data returned by the salesman terminal and/or the target salesman terminal is received, and issue the upload permission instruction to the salesman terminal and/or the target salesman terminal when the disposable token is legal.
In one possible implementation manner, the agent software workbench is configured to use a teller terminal and a salesman terminal as edge nodes, link the edge nodes by using a cloud node cluster, fuse RTC audio stream data and RTC video stream data reported by each edge node, and add a time identifier and an importance identifier for the fused audio/video data, so as to determine a storage duration of the fused audio/video data according to the time identifier and the importance identifier, and delete the stored audio/video data when the corresponding storage duration is reached.
The application provides a multifunctional chromatographic analysis system. Compared with the prior art, the method has the following beneficial effects:
the method comprises the steps that video stream data of a target user are collected through a camera configured by a law enforcement recorder, audio stream data of the target user are collected through a microphone configured by the law enforcement recorder, and the video stream data and the audio stream data are transmitted to a salesman terminal in a near field communication mode based on an RTMP (real time protocol); the salesman terminal receives the video stream data and the audio stream data uploaded by the law enforcement recorder, converts the video stream data and the audio stream data from RTMP stream media format into RTC audio stream data and RTC video stream data in RTC format, and uploads the RTC audio stream data and the RTC video stream data to the seat software workbench through VPN; the seat software workbench receives the RTC audio stream data and the RTC video stream data, fuses the RTC audio stream data and the RTC video stream data, obtains double-record videos aiming at target users, and stores the double-record videos. Therefore, the method can not only collect audio and video data conveniently and rapidly through the law enforcement recorder, but also automatically fuse audio and video, can completely fuse interactive video media streams, PPT screen media streams and two-way screen media streams, and can completely restore the whole session process of double-recorded video, thereby increasing the convenience of on-site audio and video data collection and storage.
Drawings
Fig. 1 is a schematic diagram of a real-time communication system based on a law enforcement recorder according to the present application.
Fig. 2 is a schematic diagram of a call flow provided in accordance with the present application.
Fig. 3 is a schematic diagram of another law enforcement recorder-based real-time communication system according to the present application.
Fig. 4 is a schematic diagram of another law enforcement recorder-based real-time communication system provided in accordance with the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Referring to fig. 1, the present application provides a technical solution: a law enforcement recorder-based real-time communication system, the system comprising:
the system comprises a law enforcement recorder, a salesman terminal connected with the law enforcement recorder in a short-range communication mode and a seat software workbench connected with the salesman terminal through a VPN;
in the embodiment of the disclosure, the salesman terminal may be a tablet computer, a smart phone, or the like. The close range communication mode can be Bluetooth communication or WIFI communication.
The law enforcement recorder is used for acquiring video stream data of a target user through a configured camera and audio stream data of the target user through a configured microphone, and transmitting the video stream data and the audio stream data to the salesman terminal in the near field communication mode based on an RTMP streaming media protocol;
the salesman terminal is used for receiving the video stream data and the audio stream data uploaded by the law enforcement recorder, converting the video stream data and the audio stream data from the RTMP stream media format into RTC audio stream data and RTC video stream data in an RTC format, and uploading the RTC audio stream data and the RTC video stream data to the seat software workbench through the VPN;
the seat software workbench is used for receiving the RTC audio stream data and the RTC video stream data, fusing the RTC audio stream data and the RTC video stream data, obtaining double-record videos aiming at the target user, and storing the double-record videos.
The agent software workbench can be configured in an intranet system, and the intranet system can be further configured with a video screen platform, a storage platform and other platforms. And further, the double-record video can be stored in the storage platform. And the intranet is connected with the salesman terminal through the audio/video gateway.
The system can collect audio and video data conveniently and rapidly through the law enforcement recorder, can automatically fuse audio and video, can completely fuse interactive video media streams, PPT screen media streams and two-way screen media streams, can completely restore the whole session process of double-recorded video, and increases convenience of on-site audio and video data collection and storage.
In one possible implementation, referring to fig. 2, the salesman terminal is configured to send a session establishment request to the seat software workstation and a call request to the law enforcement recorder in response to an initiation of a video operation by a salesman;
the law enforcement recorder is used for calling a configured camera to collect video stream data of a target user and calling a configured microphone to collect audio stream data of the target user according to the calling request;
the seat software workbench is used for inquiring house entering information according to the session establishment request, determining a house number corresponding to the salesman terminal according to the house entering information, and returning the house number to the salesman terminal based on a terminal protocol;
the salesman terminal is used for entering a call state according to the room number, and in the call state, the salesman terminal can enter a room and upload RTC audio stream data and RTC video stream data to the seat software workbench.
In a possible implementation manner, the seat software workbench is used for receiving a room entrance request operation of the salesman terminal based on the room number, transmitting the room entrance request to an audio-video node according to the room entrance request operation of the salesman on the salesman terminal, and calling an audio-video process by calling a command line parameter according to SC state information pushed by the audio-video node so as to switch the audio-video process into a waiting state in an inter-process communication manner.
In one possible implementation manner, the agent software workbench is further configured to notify the waiting state through an inter-process communication manner when the audio and video process is switched to the waiting state.
In one possible implementation, referring to fig. 3, the real-time communication system based on the law enforcement recorder further includes: a teller terminal;
the teller terminal is used for switching the audio and video process into a waiting state under the condition that the audio and video process is not in the waiting state according to a house entrance request of a user, and transmitting information corresponding to the waiting state to the teller terminal in an inter-process communication mode under the condition that the audio and video process is switched into the waiting state;
the salesman terminal is used for switching the salesman terminal to a state of entering a video under the condition of receiving the information corresponding to the state to be answered, and sending a CS request to the seat software workbench at regular time.
In one possible implementation manner, the salesman terminal is further configured to send a hang-up request to the seat software workbench in response to an active hang-up operation of a salesman;
the seat software workbench is used for transmitting the hanging-up request to the teller terminal in a transparent transmission and inter-process communication mode;
the teller terminal is used for exiting the entered room under the condition of receiving the hang-up request and reporting the room-exit information to the seat software workbench, so that the seat software workbench can receive any room-entrance request of the teller terminal or the salesman terminal under the condition of receiving the room-exit information.
For example, a teller invokes an RTC call terminal SDK through a teller terminal to initiate an RTC call; and the remote video investigation auditor in the row uses the bank video seat workbench to answer the RTC call from the client. After the call is put through, supporting real-time interaction between two parties of a call based on an RTC protocol, comprising the following steps: the operations of remote user control photographing, screenshot and the like can be supported by means of functions such as interactive whiteboard, frame capturing, sharing screen throwing and the like.
In a possible implementation manner, the agent software workbench is further used for calling a key machine to generate a disposable data key and issuing the disposable data key and session configuration information to the salesman terminal and a target teller terminal indicated by the session establishment request under the condition that the session establishment request of the salesman terminal is received;
the salesman terminal and the target salesman terminal are used for applying for a request for transmitting data to the seat software workbench according to the session configuration information, and encrypting and uploading the audio and video data stream to be uploaded through the disposable data key under the condition that the seat software workbench returns an instruction for allowing uploading to be received.
In one possible implementation manner, the agent software workbench is specifically configured to check whether a disposable token of the salesman terminal and/or the target salesman terminal is legal or not when the request for transmitting data returned by the salesman terminal and/or the target salesman terminal is received, and issue the upload permission instruction to the salesman terminal and/or the target salesman terminal when the disposable token is legal.
The system supports the unified video platform communication data and protocol to be fully encrypted by adopting a high-efficiency and safe encryption algorithm, supports the encryption algorithms of SM2 and SM4 of the national secret, and strengthens the safety of identity authentication through independent management of public keys and private keys and a single invalidation mechanism of signature information of the identity authentication. The signature verification is provided with a time stamp, so that each signature information can be used only once, illegal login by counterfeit authentication is prevented, and the method has a corresponding strategy and control means for preventing internet attack.
In a possible implementation manner, as shown in fig. 4, the seat software workbench is configured to use a teller terminal and a salesman terminal as edge nodes, link the edge nodes by using a cloud node cluster, fuse RTC audio stream data and RTC video stream data reported by the edge nodes, and add a time identifier and an importance identifier for the fused audio/video data, so as to determine a duration of storing the fused audio/video data according to the time identifier and the importance identifier, and delete the stored audio/video data when the corresponding duration of storing is reached.
And in the whole audio and video process, the cloud channel and the local node only transmit media stream data, and all the services and the media streams are finally transmitted to the in-line local server for decryption fusion, and finally complete double-record video files are formed.
With the above-described preferred embodiments according to the present application as a teaching, the worker skilled in the art could make various changes and modifications without departing from the scope of the technical idea of the present application. The technical scope of the present application is not limited to the contents of the specification, and must be determined according to the scope of claims.
Although embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the application, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A law enforcement recorder-based real-time communication system, the system comprising:
the system comprises a law enforcement recorder, a salesman terminal connected with the law enforcement recorder in a short-range communication mode and a seat software workbench connected with the salesman terminal through a VPN;
the law enforcement recorder is used for acquiring video stream data of a target user through a configured camera and audio stream data of the target user through a configured microphone, and transmitting the video stream data and the audio stream data to the salesman terminal in the near field communication mode based on an RTMP streaming media protocol;
the salesman terminal is used for receiving the video stream data and the audio stream data uploaded by the law enforcement recorder, converting the video stream data and the audio stream data from RTMP stream media format into RTC audio stream data and RTC video stream data in RTC format, and uploading the RTC audio stream data and the RTC video stream data to the seat software workbench through the VPN;
the seat software workbench is used for receiving the RTC audio stream data and the RTC video stream data, fusing the RTC audio stream data and the RTC video stream data to obtain double-record videos aiming at the target user, and storing the double-record videos;
the salesman terminal is used for responding to the initiation video operation of a salesman, sending a session establishment request to the seat software workbench and sending a calling request to the law enforcement recorder;
the law enforcement recorder is used for calling a configured camera to collect video stream data of a target user and calling a configured microphone to collect audio stream data of the target user according to the calling request;
the seat software workbench is used for inquiring house entering information according to the session establishment request, determining a house number corresponding to the salesman terminal according to the house entering information, and returning the house number to the salesman terminal based on a terminal protocol;
the salesman terminal is used for entering a call state according to the room number, and in the call state, the salesman terminal can enter a room and upload RTC audio stream data and RTC video stream data to the seat software workbench;
the seat software workbench is used for receiving the house entrance request operation of the salesman terminal based on the house number, transmitting the house entrance request to an audio-video node according to the house entrance request operation of the salesman on the salesman terminal, calling an audio-video process by calling a command line parameter according to SC state information pushed by the audio-video node, and switching the audio-video process into a waiting state in an inter-process communication mode.
2. The law enforcement recorder-based real-time communication system according to claim 1, wherein the agent software workstation is further configured to notify the waiting state by way of inter-process communication in a case where the audio and video process is switched to the waiting state.
3. The law enforcement recorder-based real-time communication system of claim 2, wherein the law enforcement recorder-based real-time communication system further comprises: a teller terminal;
the teller terminal is used for switching the audio and video process into a waiting state under the condition that the audio and video process is not in the waiting state according to a house entrance request of a user, and transmitting information corresponding to the waiting state to the teller terminal in an inter-process communication mode under the condition that the audio and video process is switched into the waiting state;
the salesman terminal is used for switching the salesman terminal to a state of entering a video under the condition of receiving the information corresponding to the state to be answered, and sending a CS request to the seat software workbench at regular time.
4. A law enforcement recorder based real-time communications system according to claim 3 wherein said attendant terminal is further adapted to send a hang-up request to said agent software workstation in response to an active hang-up operation by an attendant;
the seat software workbench is used for transmitting the hanging-up request to the teller terminal in a transparent transmission and inter-process communication mode;
the teller terminal is used for exiting the entered room under the condition of receiving the hang-up request and reporting the room-exit information to the seat software workbench, so that the seat software workbench can receive any room-entrance request of the teller terminal or the salesman terminal under the condition of receiving the room-exit information.
5. The law enforcement recorder-based real-time communication system of claim 4, wherein the agent software workstation is further configured to, upon receiving a session establishment request from the salesman terminal, invoke a key engine to generate a one-time data key and issue the one-time data key and session configuration information to the salesman terminal and a target salesman terminal indicated by the session establishment request;
the salesman terminal and the target salesman terminal are used for applying for a request for transmitting data to the seat software workbench according to the session configuration information, and encrypting and uploading the audio and video data stream to be uploaded through the disposable data key under the condition that the seat software workbench returns an instruction for allowing uploading to be received.
6. The real-time communication system based on a law enforcement recorder according to claim 5, wherein the agent software workstation is specifically configured to check whether a disposable token of the salesman terminal and/or the target salesman terminal is legal or not when a request for transmitting data from the salesman terminal and/or the target salesman terminal is received, and issue the upload permission instruction to the salesman terminal and/or the target salesman terminal when the disposable token is legal.
7. The real-time communication system based on a law enforcement recorder according to any one of claims 1 to 6, wherein the agent software workstation is configured to link edge nodes with teller terminals and salesman terminals as edge nodes in a cloud node cluster manner, fuse RTC audio stream data reported by each edge node with the RTC video stream data, and add a time identifier and an importance identifier for the fused audio/video data, so as to determine a storage duration of the fused audio/video data according to the time identifier and the importance identifier, and delete the stored audio/video data if the corresponding storage duration is reached.
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