技术领域technical field
本发明涉及安全防范视频监控领域，尤其涉及一种视频监控系统中智能数据采集方法及系统。The invention relates to the field of security video monitoring, in particular to an intelligent data collection method and system in a video monitoring system.
背景技术Background technique
安全防范视频监控联网系统(以下简称视频监控系统)是以安全防范为目的，综合应用视音频监控、通信、计算机网络、系统集成等技术，在城市、大型场所范围内构建的具有信息采集、传输、控制、显示、存储、处理等功能的能够实现不同设备及系统间互联、互通、互控的综合网络系统。视频监控系统在公安工作中发挥着重大作用，如平安城市系统中，视频监控系统就是其中的重要组成部分。视频监控系统中产生了海量视频数据，这些数据对保障公共安全，预防和制止犯罪有着不可或缺的作用。The security and prevention video surveillance network system (hereinafter referred to as the video surveillance system) is a comprehensive application of video and audio surveillance, communication, computer network, system integration and other technologies for the purpose of security prevention, and is built within the scope of cities and large places with information collection and transmission capabilities. , control, display, storage, processing and other functions can realize the interconnection, intercommunication and mutual control of different equipment and systems. The video surveillance system plays an important role in the public security work, such as the safe city system, the video surveillance system is an important part of it. Massive video data are generated in the video surveillance system, and these data play an indispensable role in ensuring public safety, preventing and stopping crimes.
在大数据时代，不再使用人工来分析、检索这些海量视频数据。智能视频分析IVS(Intelligent Video Analysis System)，是使用计算机图像视觉分析技术，借助于计算机芯片强大的数据处理功能，对视频画面进行高速分析，通过将场景中背景和目标分离进而提取、比对和分析画面中的关键信息。这些分析出的关键信息被称之为智能数据，基于这些智能技术进行数据挖掘、统计、检索能够让视频监控从人工抽检，进步到高效事前预警、事后分析，实现智能化的信息分析、预测。In the era of big data, it is no longer necessary to manually analyze and retrieve these massive video data. Intelligent Video Analysis IVS (Intelligent Video Analysis System) uses computer image vision analysis technology, with the help of powerful data processing functions of computer chips, to analyze video images at high speed, and then extracts, compares and Analyze the key information in the screen. The key information analyzed is called intelligent data. Data mining, statistics, and retrieval based on these intelligent technologies can make video surveillance progress from manual sampling inspection to efficient pre-warning and post-event analysis, and realize intelligent information analysis and prediction.
智能数据在形式上被分为两个部分：结构化数据和二进制数据。结构化数据通常描述拍摄到的目标和场景信息(如车辆卡口系统中的车辆车牌等信息)，常表示为一段结构化的文本(如XML格式的文本)。二进制数据通常为结构化数据的辅助数据(如车辆卡口系统中的抓拍特写图片，人脸特征信息等)，常表示为一个或多个二进制文件(流)。Smart data is formally divided into two parts: structured data and binary data. Structured data usually describes the captured target and scene information (such as vehicle license plate information in the vehicle bayonet system), and is often expressed as a piece of structured text (such as text in XML format). Binary data is usually auxiliary data of structured data (such as snapshot close-up pictures in the vehicle bayonet system, facial feature information, etc.), and is often expressed as one or more binary files (streams).
随着智能IPC(IP CAMERA，简称IPC，即网络摄像机)等前端设备在视频监控系统中的广泛应用，智能视频分析功能常常在前端就可以完成。如何采集这些前端设备生成的智能数据是在视频监控系统设计部署时需要面对的问题。目前在视频监控领域的两大标准《GB/T28181-2011安全防范视频监控联网系统信息传输、交换、控制技术要求》(以下简称GB/T28181-2011)和ONVIF均未对如何采集前端设备生成的智能数据给出明确的标准及方法。因而，在安防领域，即使不同设备厂家建设的视频监控系统都遵循GB/T28181-2011，但由于定义的智能数据格式和采集方式的不同，导致无法使用统一的智能数据采集系统来统一采集智能数据。With the widespread application of front-end equipment such as intelligent IPC (IP CAMERA, IPC, ie network camera) in the video surveillance system, the intelligent video analysis function can often be completed at the front-end. How to collect the intelligent data generated by these front-end devices is a problem that needs to be faced when designing and deploying video surveillance systems. At present, the two major standards in the field of video surveillance "GB/T28181-2011 Technical Requirements for Information Transmission, Exchange, and Control of Networked System for Security and Prevention Video Surveillance" (hereinafter referred to as GB/T28181-2011) and ONVIF do not specify how to collect data generated by front-end equipment. Smart data provides clear standards and methods. Therefore, in the field of security, even if the video surveillance systems built by different equipment manufacturers follow GB/T28181-2011, due to the differences in the defined smart data formats and collection methods, it is impossible to use a unified smart data collection system to uniformly collect smart data .
发明内容Contents of the invention
为此，本发明要解决的技术问题在于现有视频监控系统中智能数据没有统一的方法进行采集，从而提出一种视频监控系统中智能数据采集方法及系统来解决该技术问题。Therefore, the technical problem to be solved by the present invention is that there is no unified method for collecting intelligent data in the existing video monitoring system, so a method and system for collecting intelligent data in the video monitoring system are proposed to solve the technical problem.
为解决上述技术问题，本发明采用以下技术方案：In order to solve the problems of the technologies described above, the present invention adopts the following technical solutions:
一种视频监控系统中智能数据采集方法，应用于包括SIP服务器、数据管理服务器，以及若干具有智能视频分析功能的前端设备的视频监控联网系统，包括如下步骤：前端设备向SIP服务器进行设备注册或者注销；SIP服务器建立或者更新设备目录；数据管理服务器向SIP服务器获取设备目录信息；数据管理服务器根据设备目录信息，通过SIP服务器请求注册的前端设备打开数据通道；前端设备接收该请求，并通过SIP服务器响应同意该请求后，打开前端设备和数据管理服务器之间的数据通道；数据通道打开后，前端设备通过数据通道向数据管理服务器发送智能数据。A method for intelligent data collection in a video surveillance system, applied to a video surveillance networked system including a SIP server, a data management server, and several front-end devices with intelligent video analysis functions, comprising the following steps: the front-end device performs device registration with the SIP server or Log out; the SIP server establishes or updates the device directory; the data management server obtains device directory information from the SIP server; the data management server requests the registered front-end device to open the data channel through the SIP server according to the device directory information; After the server agrees with the request, it opens the data channel between the front-end device and the data management server; after the data channel is opened, the front-end device sends intelligent data to the data management server through the data channel.
作为本发明的视频监控系统中智能数据采集方法的进一步改进，需要关闭数据通道时，数据管理服务器通过SIP服务器请求前端设备关闭数据通道；前端设备接收该请求，并通过SIP服务器响应同意该请求后，数据通道关闭。As a further improvement of the intelligent data acquisition method in the video surveillance system of the present invention, when the data channel needs to be closed, the data management server requests the front-end equipment to close the data channel through the SIP server; the front-end equipment receives the request, and responds to the request through the SIP server , the data channel is closed.
作为本发明的视频监控系统中智能数据采集方法的进一步改进，所述“数据管理服务器向SIP服务器获取设备目录信息”包括：数据管理服务器向SIP服务器发送设备目录订阅请求，SIP服务器向数据管理服务器发送当前的设备目录信息。As a further improvement of the intelligent data acquisition method in the video surveillance system of the present invention, the "data management server obtains device directory information from the SIP server" includes: the data management server sends a device directory subscription request to the SIP server, and the SIP server sends a device directory subscription request to the data management server. Send current device directory information.
作为本发明的视频监控系统中智能数据采集方法的进一步改进，前端设备向SIP服务器进行设备注册或者注销更新后，SIP服务器还向数据管理服务器发送设备目录更新后的设备目录信息。As a further improvement of the intelligent data collection method in the video surveillance system of the present invention, after the front-end device registers or cancels the update with the SIP server, the SIP server also sends the updated device directory information to the data management server.
作为本发明的视频监控系统中智能数据采集方法的进一步改进，在前端设备中缓存数据通道不可用时无法发送的智能数据。As a further improvement of the intelligent data collection method in the video monitoring system of the present invention, the intelligent data that cannot be sent when the data channel is unavailable is cached in the front-end equipment.
作为本发明的视频监控系统中智能数据采集方法的进一步改进，通过数据管理服务器解析和存储智能数据。As a further improvement of the intelligent data collection method in the video monitoring system of the present invention, the intelligent data is parsed and stored by the data management server.
作为本发明的视频监控系统中智能数据采集方法的进一步改进，通过至少一条实时数据通道发送实时的智能数据，通过至少一条历史数据通道发送缓存的智能数据。As a further improvement of the intelligent data collection method in the video monitoring system of the present invention, real-time intelligent data is sent through at least one real-time data channel, and cached intelligent data is sent through at least one historical data channel.
作为本发明的视频监控系统中智能数据采集方法的进一步改进，通过实时数据通道发送心跳消息以检测实时数据通道是否异常断开。As a further improvement of the intelligent data collection method in the video surveillance system of the present invention, a heartbeat message is sent through the real-time data channel to detect whether the real-time data channel is disconnected abnormally.
作为本发明的视频监控系统中智能数据采集方法的进一步改进，检测到实时数据通道异常断开时，在前端设备中缓存数据通道异常断开期间无法发送的智能数据。As a further improvement of the intelligent data collection method in the video monitoring system of the present invention, when the abnormal disconnection of the real-time data channel is detected, the intelligent data that cannot be sent during the abnormal disconnection of the data channel is cached in the front-end equipment.
作为本发明的视频监控系统中智能数据采集方法的进一步改进，检测到实时数据通道异常断开时，数据管理服务器定时发出打开历史数据通道的请求，直到前端设备打开历史数据通道。As a further improvement of the intelligent data collection method in the video monitoring system of the present invention, when the abnormal disconnection of the real-time data channel is detected, the data management server sends out a request for opening the historical data channel at regular intervals until the front-end device opens the historical data channel.
一种视频监控系统中智能数据采集系统，包括：SIP服务器、数据管理服务器以及若干具有智能视频分析功能的前端设备，其中，所述前端设备包括：设备注册模块，发送设备注册或者注销请求；数据发送模块，响应打开或关闭数据通道的请求，并在建立的数据通道上传输数据；所述SIP服务器包括：中心信令控制模块，负责核心SIP信令处理，并向所述数据发送模块转发所述打开或者关闭数据通道请求；设备管理模块，根据所述设备注册或者注销请求在所述设备管理模块中建立或者更新设备目录，支持设备目录定制及更新通知；所述数据管理服务器包括：数据通道管理模块，用于通过所述中心信令控制模块向所述设备管理模块获取设备目录信息，以及，根据所述设备目录信息向所述中心信令控制模块发送打开或者关闭数据通道请求数据管理模块，接收数据通道上传输过来的数据并进行管理。An intelligent data acquisition system in a video surveillance system, comprising: a SIP server, a data management server, and several front-end devices with intelligent video analysis functions, wherein the front-end devices include: a device registration module that sends a device registration or cancellation request; The sending module responds to the request of opening or closing the data channel, and transmits data on the established data channel; the SIP server includes: a central signaling control module, which is responsible for core SIP signaling processing, and forwards the data to the data sending module The request to open or close the data channel; the device management module, according to the device registration or deregistration request, establishes or updates the device directory in the device management module, and supports device directory customization and update notification; the data management server includes: data channel A management module, configured to obtain device directory information from the device management module through the central signaling control module, and send a request to open or close a data channel to the central signaling control module according to the device directory information to the data management module , to receive and manage the data transmitted over the data channel.
作为本发明的视频监控系统中智能数据采集系统的进一步改进，所述前端设备还包括数据缓存模块，用于缓存数据通道不可用期间无法发送的智能数据。As a further improvement of the intelligent data acquisition system in the video monitoring system of the present invention, the front-end equipment further includes a data cache module, which is used to cache intelligent data that cannot be sent when the data channel is unavailable.
作为本发明的视频监控系统中智能数据采集系统的进一步改进，所述数据通道包括至少一条实时数据通道和至少一条历史数据通道，其中，所述实时数据通道，用于发送实时的智能数据；所述历史数据通道，用于发送缓存的智能数据。As a further improvement of the intelligent data acquisition system in the video surveillance system of the present invention, the data channel includes at least one real-time data channel and at least one historical data channel, wherein the real-time data channel is used to send real-time intelligent data; The historical data channel described above is used to send cached smart data.
作为本发明的视频监控系统中智能数据采集系统的进一步改进，所述数据管理模块还包括数据接收模块、数据解析模块和数据存储模块，其中，所述数据接收模块，用于接收通过所述数据通道发送的智能数据；所述数据解析模块，用于解析所述数据接收模块接收的智能数据；所述数据存储模块，用于存储所述数据解析模块解析后的智能数据。As a further improvement of the intelligent data acquisition system in the video monitoring system of the present invention, the data management module further includes a data receiving module, a data parsing module and a data storage module, wherein the data receiving module is used to receive and pass through the data The intelligent data sent by the channel; the data analysis module is used to analyze the intelligent data received by the data receiving module; the data storage module is used to store the intelligent data analyzed by the data analysis module.
本发明的视频监控系统中智能数据采集方法及系统的有益效果为：The beneficial effects of the intelligent data acquisition method and system in the video monitoring system of the present invention are:
(1)本发明的视频监控系统中智能数据采集方法及系统，由于包括：前端设备向SIP服务器进行设备注册或者注销；SIP服务器建立或者更新设备目录；数据管理服务器向SIP服务器获取设备目录信息；数据管理服务器根据设备目录信息，通过SIP服务器请求注册的前端设备打开数据通道；数据通道打开后，前端设备通过数据通道向数据管理服务器发送智能数据；需要关闭数据通道时，数据管理服务器通过SIP服务器请求前端设备关闭数据通道。这样提供了一种在视频监控系统采集智能数据的统一方式，使得使用统一的智能数据采集系统来采集多个不同设备厂家建设的视频监控系统中的智能数据成为可能。(1) Intelligent data acquisition method and system in the video surveillance system of the present invention, owing to comprise: front-end equipment carries out equipment registration or cancellation to SIP server; SIP server establishes or updates equipment directory; Data management server obtains equipment directory information to SIP server; According to the device directory information, the data management server requests the registered front-end device to open the data channel through the SIP server; after the data channel is opened, the front-end device sends intelligent data to the data management server through the data channel; when the data channel needs to be closed, the data management server passes the SIP server Request the front-end device to close the data channel. This provides a unified method for collecting intelligent data in the video surveillance system, making it possible to use a unified intelligent data collection system to collect intelligent data in video surveillance systems built by multiple different equipment manufacturers.
(2)本发明的视频监控系统中智能数据采集方法及系统，由于所述前端设备还包括数据缓存模块，这样可以在前端设备中缓存数据通道不可用时无法发送的智能数据。(2) In the intelligent data acquisition method and system in the video monitoring system of the present invention, since the front-end equipment also includes a data cache module, the intelligent data that cannot be sent when the data channel is not available can be cached in the front-end equipment.
(3)本发明的视频监控系统中智能数据采集方法及系统，由于所述数据管理模块还包括数据解析模块和数据存储模块，这样还可以解析和存储智能数据。(3) In the intelligent data acquisition method and system in the video monitoring system of the present invention, since the data management module also includes a data analysis module and a data storage module, it can also analyze and store intelligent data.
(4)本发明的视频监控系统中智能数据采集方法及系统，由于所述数据通道还包括至少一条历史数据通道，这样可以通过所述历史数据通道发送缓存的智能数据，保证智能数据的完整性。(4) In the video surveillance system of the present invention, the intelligent data acquisition method and system, since the data channel also includes at least one historical data channel, the intelligent data cached can be sent through the historical data channel to ensure the integrity of the intelligent data .
(5)本发明的视频监控系统中智能数据采集方法及系统，还通过实时数据通道发送心跳消息以检测实时数据通道是否异常断开。当检测到实时数据通道异常断开时，可以缓存数据通道异常断开期间无法发送的智能数据。(5) The intelligent data collection method and system in the video surveillance system of the present invention also sends a heartbeat message through the real-time data channel to detect whether the real-time data channel is disconnected abnormally. When an abnormal disconnection of the real-time data channel is detected, intelligent data that cannot be sent during the abnormal disconnection of the data channel can be cached.
附图说明Description of drawings
为了使本发明的内容更容易被清楚的理解，下面根据本发明的具体实施例并结合附图，对本发明作进一步详细的说明，其中In order to make the content of the present invention more easily understood, the present invention will be described in further detail below according to specific embodiments of the present invention in conjunction with the accompanying drawings, wherein
图1是本发明实施例1的安全防范视频监控系统中的智能数据采集方法的流程图。FIG. 1 is a flowchart of an intelligent data collection method in a security video surveillance system according to Embodiment 1 of the present invention.
图2是本发明实施例2的智能数据采集方法中的实时智能数据交换流程。Fig. 2 is a flow chart of real-time intelligent data exchange in the intelligent data collection method according to Embodiment 2 of the present invention.
图3是本发明实施例3的智能数据采集方法中的历史智能数据交换流程。FIG. 3 is a flow chart of historical intelligent data exchange in the intelligent data collection method according to Embodiment 3 of the present invention.
图4是本发明实施例4的视频监控系统中智能数据采集系统的结构示意图。FIG. 4 is a schematic structural diagram of an intelligent data acquisition system in a video surveillance system according to Embodiment 4 of the present invention.
具体实施方式Detailed ways
实施例1：Example 1:
本发明的实施例的一种安全防范视频监控系统中的智能数据采集方法，其应用于包括SIP服务器、数据管理服务器、以及若干具有智能视频分析功能的前端设备的安全防范视频监控联网系统，An intelligent data collection method in a security video monitoring system according to an embodiment of the present invention is applied to a security video monitoring networking system including a SIP server, a data management server, and several front-end devices with intelligent video analysis functions,
GB/T28181-2011对SIP服务器已经作了描述，不再赘述。所述数据管理服务器以及若干具有智能视频分析功能的前端设备即为GB/T28181-2011定义的SIP设备。GB/T28181-2011 has already described the SIP server and will not go into details. The data management server and several front-end devices with intelligent video analysis functions are SIP devices defined in GB/T28181-2011.
图1示出了本实施例的安全防范视频监控系统中的智能数据采集方法的流程图，包括以下步骤：Fig. 1 shows the flow chart of the intelligent data acquisition method in the security guard video surveillance system of the present embodiment, comprises the following steps:
S1、前端设备向SIP服务器进行设备注册或者注销。S1. The front-end device performs device registration or deregistration with the SIP server.
前端设备和SIP服务器之间的设备注册、注销流程遵循GB/T28181-2011中的SIP代理(SIP UA)注册和注销的命令流程和协议接口。The device registration and deregistration process between the front-end device and the SIP server follows the command process and protocol interface of the SIP proxy (SIP UA) registration and deregistration in GB/T28181-2011.
S2、SIP服务器建立或者更新设备目录。S2. The SIP server establishes or updates the device directory.
SIP服务器第一次进行设备注册时，建立设备目录。SIP服务器进行后续的设备注册或者注销时，对设备目录进行更新。When the SIP server performs device registration for the first time, a device directory is established. When the SIP server performs subsequent device registration or deregistration, the device directory is updated.
S3、数据管理服务器向SIP服务器获取设备目录信息。S3. The data management server acquires device directory information from the SIP server.
具体地，首先由数据管理服务器向SIP服务器订阅设备目录，此流程遵循GB/T28181-2011中目录订阅的命令流程和协议接口。SIP服务器向数据管理服务器发送当前的设备目录信息通知。另外，前端设备向SIP服务器进行设备注册或者注销更新后，SIP服务器还向数据管理服务器发送更新的设备目录信息通知。设备目录信息通知遵循GB/T28181-2011中的目录通知命令流程和协议接口。Specifically, firstly, the data management server subscribes to the device catalog from the SIP server, and this process follows the command process and protocol interface of catalog subscription in GB/T28181-2011. The SIP server sends a current device directory information notification to the data management server. In addition, after the front-end device performs device registration or deregistration update with the SIP server, the SIP server also sends a notification of updated device directory information to the data management server. The device directory information notification follows the directory notification command process and protocol interface in GB/T28181-2011.
S4、数据管理服务器根据设备目录信息，通过SIP服务器请求注册的前端设备打开数据通道。S4. The data management server requests the registered front-end device through the SIP server to open the data channel according to the device directory information.
数据通道以HTTP1.1长连接方式实现，数据报文以“HTTP+XML+二进制流数据”方式组织。The data channel is realized by HTTP1.1 long connection, and the data message is organized by "HTTP+XML+binary stream data".
在数据通道上使用HTTP协议传输HTTP报文，通过HTTP协议的POST方式可以直接传输XML形式的结构化文本数据。如果需要传输结构化文本和二进制复合数据(如车辆卡口的结构化车辆信息和抓拍图片等二进制数据)，可以组织为HTTP协议的multipart/form-data媒体类型的数据格式进行传输。一个仅传输XML结构化文本数据的HTTP消息示例如下，可在申请的负载类型(Payload)为Structural Description的数据通道上传输：The HTTP protocol is used to transmit HTTP messages on the data channel, and structured text data in the form of XML can be directly transmitted through the POST method of the HTTP protocol. If it is necessary to transmit structured text and binary composite data (such as structured vehicle information at the vehicle bayonet and binary data such as snapped pictures), it can be organized as a data format of the multipart/form-data media type of the HTTP protocol for transmission. An example of an HTTP message that only transmits XML structured text data is as follows, which can be transmitted on a data channel whose payload type (Payload) is Structural Description:
POST/api/structuraldescription HTTP/1.1POST /api/structuraldescription HTTP/1.1
Host：202.1.1.1Host: 202.1.1.1
User-Agent：kdm_xxx/1.1User-Agent: kdm_xxx/1.1
Accept：text/*Accept: text/*
Content-Type：application/xmlContent-Type: application/xml
Content-Length：26175Content-Length: 26175
Connection：Keep-AliveConnection: Keep-Alive
Cache-Control：no-cacheCache-Control: no-cache
Accept-Encoding：gzip，deflateAccept-Encoding: gzip, deflate
Allow：application/xmlAllow: application/xml
XML文本段XML text segment
上述消息示例中，消息头部分Content-Type固定填为“application/xml”。一个包含XML结构化文本和图片二进制数据的复合数据的HTTP消息示例如下(媒体类型为multipart/form-data)，可在申请的负载类型(Payload)为Multipart的数据通道上传输：In the above message example, the Content-Type of the message header is fixedly filled with "application/xml". An example of an HTTP message containing composite data of XML structured text and image binary data is as follows (media type is multipart/form-data), which can be transmitted on a data channel whose payload type (Payload) is Multipart:
上述消息示例中，消息头部分Content-Type固定填为“multipart/form-data”。分隔消息体各部分的边界属性boundary可由源设备(发送方)自行定义。在消息体的各个部分中，包含“Content-Disposition”、“name”、“filename”、“Content-Type”四个属性，这四个属性为必填属性。其中Content-Disposition的属性值固定为“form-data”。name属性表示该数据部分的名称。filename属性表示该数据部分使用文件上传方式传输到服务器时所用的文件名。name属性和filename属性的命名并没有要求特定的命名规则，可由源设备和目标设备根据自身的业务特性来定义命名规则，要求该命名在源设备(发送端)是唯一的。Content-Type属性表示该数据部分的媒体类型，若为结构化描述信息，属性值可取为“application/xml”；如为二进制数据，属性值可取为“application/octet-stream”。In the above message example, the Content-Type of the message header is fixedly filled with "multipart/form-data". The boundary attribute separating each part of the message body can be defined by the source device (sender). Each part of the message body contains four attributes: "Content-Disposition", "name", "filename", and "Content-Type". These four attributes are required. The attribute value of Content-Disposition is fixed as "form-data". The name attribute represents the name of the data part. The filename attribute indicates the file name used when the data part is transmitted to the server by means of file upload. The naming of the name attribute and the filename attribute does not require a specific naming rule. The source device and the target device can define the naming rule according to their own business characteristics, and the name is required to be unique on the source device (transmitter). The Content-Type attribute indicates the media type of the data part. If it is structured description information, the attribute value can be "application/xml"; if it is binary data, the attribute value can be "application/octet-stream".
数据管理服务器设备目录信息向注册的前端设备发送打开数据通道的请求，该请求信令通过SIP服务器转发。前端设备收到打开数据通道的请求后，发送打开数据通道请求回应给数据管理服务器，该回应信令通过SIP服务器转发。The device directory information of the data management server sends a request for opening a data channel to the registered front-end device, and the request signaling is forwarded through the SIP server. After the front-end device receives the request for opening the data channel, it sends a response to the request for opening the data channel to the data management server, and the response signaling is forwarded by the SIP server.
S5、前端设备接收该请求，并通过SIP服务器响应同意该请求后，打开前端设备和数据管理服务器之间的数据通道。S5. The front-end device receives the request, and opens the data channel between the front-end device and the data management server after responding and agreeing to the request through the SIP server.
即，前端设备收到打开实时数据通道请求后，发送打开实时数据通道请求回应给数据管理服务器。该回应信令通过SIP服务器转发。实时数据通道打开。That is, after receiving the request for opening the real-time data channel, the front-end device sends a response to the request for opening the real-time data channel to the data management server. The response signaling is forwarded by the SIP server. The real-time data channel is open.
S6、数据通道打开后，前端设备通过数据通道向数据管理服务器发送智能数据。S6. After the data channel is opened, the front-end device sends intelligent data to the data management server through the data channel.
前端设备通过打开的数据通道向数据管理服务器发送智能数据，数据管理服务器接收智能数据，并对智能数据进行解析和存储。The front-end device sends intelligent data to the data management server through the opened data channel, and the data management server receives the intelligent data, analyzes and stores the intelligent data.
另外，需要关闭数据通道时，数据管理服务器通过SIP服务器请求前端设备关闭数据通道；前端设备接收该请求，并通过SIP服务器响应同意该请求后，数据通道关闭。In addition, when the data channel needs to be closed, the data management server requests the front-end device to close the data channel through the SIP server; after the front-end device receives the request and agrees to the request through the SIP server, the data channel is closed.
即，当数据管理服务器需要关闭某前端设备的数据通道时，其向该前端设备发送关闭数据通道的请求，该请求信令通过SIP服务器转发。该前端设备收到关闭数据通道的请求后，发送完成关闭数据通道的回应给数据管理服务器并停止发送智能数据，将无法发送的智能数据进行缓存，发送关闭实时数据通道请求回应信令通过SIP服务器转发。That is, when the data management server needs to close the data channel of a certain front-end device, it sends a request to close the data channel to the front-end device, and the request signaling is forwarded through the SIP server. After receiving the request to close the data channel, the front-end device sends a response to close the data channel to the data management server and stops sending smart data, caches the smart data that cannot be sent, and sends a request response signaling to close the real-time data channel through the SIP server Forward.
实施例2：Example 2:
如图2所示，本发明实施例的智能数据采集方法中的实时智能数据交换流程如下：As shown in Figure 2, the real-time intelligent data exchange process in the intelligent data collection method of the embodiment of the present invention is as follows:
数据管理服务器向SIP服务器订阅设备目录。The data management server subscribes to the device directory from the SIP server.
前端设备向SIP服务器进行设备注册。The front-end device performs device registration with the SIP server.
SIP服务器将更新的设备目录信息通知给数据管理服务器。The SIP server notifies the data management server of the updated device directory information.
数据管理服务器根据更新的设备目录信息向注册的前端设备发送打开实时数据通道请求，打开实时数据通道请求的控制信令可通过扩展GB/T28181-2011中的MANSCDP定义来实现。一条基于MANSCDP格式的打开实时数据通道请求信令示例如下：The data management server sends a request to open a real-time data channel to the registered front-end device according to the updated device directory information, and the control signaling for opening the real-time data channel request can be realized by extending the MANSCDP definition in GB/T28181-2011. An example of a request signaling to open a real-time data channel based on the MANSCDP format is as follows:
该请求表示数据管理服务器向前端设备请求打开两条实时数据通道(URL分别为http：//1.1.1.1：3000和″http：//1.1.1.2：3000″)，并标明每条数据通道将发送的负载类型和需要的带宽。This request means that the data management server requests the front-end equipment to open two real-time data channels (the URLs are respectively http://1.1.1.1:3000 and "http://1.1.1.2:3000"), and indicates that each data channel will The type of payload to send and the required bandwidth.
该请求信令需要通过SIP服务器转发。前端设备收到打开实时数据通道请求后，发送打开实时数据通道请求回应给数据管理服务器。The request signaling needs to be forwarded through the SIP server. After receiving the request for opening the real-time data channel, the front-end device sends a response to the request for opening the real-time data channel to the data management server.
前端设备对打开实时数据通道请求回应示例如下：An example of the response of the front-end device to the request to open the real-time data channel is as follows:
该回应信令通过SIP服务器转发。实时数据通道打开。The response signaling is forwarded by the SIP server. The real-time data channel is open.
前端设备在打开的实时数据通道上向数据管理服务器发送实时智能数据。The front-end equipment sends real-time intelligent data to the data management server on the opened real-time data channel.
数据管理服务器在打开的实时数据通道上接收实时智能数据，并将智能数据解析和存储。The data management server receives real-time intelligent data on the opened real-time data channel, and parses and stores the intelligent data.
当数据管理服务器需要关闭前端设备的实时数据通道时，其向该前端设备发送关闭实时数据通道请求。关闭实时数据通道请求的控制信令也通过扩展GB/T28181-2011中的MANSCDP定义来实现。一条基于MANSCDP格式的关闭实时数据通道请求信令示例如下：When the data management server needs to close the real-time data channel of the front-end device, it sends a request to close the real-time data channel to the front-end device. The control signaling for closing the real-time data channel request is also implemented by extending the definition of MANSCDP in GB/T28181-2011. An example of a request signaling to close a real-time data channel based on the MANSCDP format is as follows:
该请求表示数据管理服务器向前端设备请求关闭两条实时数据通道(URL分别为http：//1.1.1.1：3000和″http：//1.1.1.2：3000″)。该请求信令通过SIP服务器转发。前端设备收到关闭实时数据通道请求后，发送关闭实时数据通道请求回应给数据管理服务器。前端设备对关闭该实时数据通道请求回应示例如下：This request indicates that the data management server requests the front-end device to close two real-time data channels (the URLs are respectively http://1.1.1.1:3000 and "http://1.1.1.2:3000"). The request signaling is forwarded through the SIP server. After receiving the request to close the real-time data channel, the front-end device sends a response to the request to close the real-time data channel to the data management server. An example of the response of the front-end device to the request to close the real-time data channel is as follows:
实时数据通道关闭，前端设备停止发送实时智能数据，将实时智能数据进行缓存。发送关闭实时数据通道请求回应信令通过SIP服务器转发。The real-time data channel is closed, the front-end equipment stops sending real-time intelligent data, and caches the real-time intelligent data. The request response signaling to close the real-time data channel is sent and forwarded through the SIP server.
作为优选的实施方式，在传输实时智能数据过程中，有时会因为网络故障等异常情况导致实时数据通道不可用。通过实时数据通道发送心跳消息以检测实时数据通道是否异常断开。当检测到实时数据通道异常断开时，前端设备缓存数据通道异常断开期间无法发送的智能数据。As a preferred implementation manner, during the process of transmitting real-time intelligent data, sometimes the real-time data channel is unavailable due to abnormal conditions such as network failure. Send a heartbeat message through the real-time data channel to detect whether the real-time data channel is disconnected abnormally. When detecting the abnormal disconnection of the real-time data channel, the front-end device caches the intelligent data that cannot be sent during the abnormal disconnection of the data channel.
前端设备通过实时数据通道向数据管理模块定时发送一个消息，在实时数据通道正常可用时，数据管理模块将及时收到所述消息，当不能收到所述消息时，表明实时数据通道异常断开。或者，数据管理模块通过实时数据通道向前端设备定时发送一个消息，在实时数据通道正常可用时，前端设备将及时收到所述消息，当不能收到所述消息时，表明实时数据通道异常断开。上述消息即为心跳消息。实际上，如何实现在实时数据通道上发送心跳消息以检测实时数据通道是否异常断开，属于本技术领域的公知常识，不再赘述。The front-end device regularly sends a message to the data management module through the real-time data channel. When the real-time data channel is normally available, the data management module will receive the message in time. When the message cannot be received, it indicates that the real-time data channel is abnormally disconnected. . Or, the data management module regularly sends a message to the front-end device through the real-time data channel. When the real-time data channel is normally available, the front-end device will receive the message in time. When the message cannot be received, it indicates that the real-time data channel is abnormally disconnected. open. The above message is the heartbeat message. In fact, how to send a heartbeat message on the real-time data channel to detect whether the real-time data channel is abnormally disconnected belongs to the common knowledge in the technical field, and will not be repeated here.
作为优选实施方式，所述实时数据通道可以是一条或者两条或者三条，其具体数量根据实际要求设置。As a preferred implementation manner, there may be one, two or three real-time data channels, and the specific number is set according to actual requirements.
实施例3：Example 3:
如图3所示，本发明实施例的智能数据采集方法中的历史智能数据交换流程如下：As shown in Figure 3, the historical intelligent data exchange process in the intelligent data collection method of the embodiment of the present invention is as follows:
数据管理服务器向需要打开历史数据通道的前端设备发送打开历史数据通道的请求。打开历史数据通道请求的控制信令可通过扩展GB/T28181-2011中的MANSCDP定义来实现。一条基于MANSCDP格式的打开历史数据通道请求信令示例如下：The data management server sends a request for opening the historical data channel to the front-end device that needs to open the historical data channel. The control signaling for opening the historical data channel request can be realized by extending the definition of MANSCDP in GB/T28181-2011. An example of request signaling for opening a historical data channel based on MANSCDP format is as follows:
该请求表示数据管理服务器向前端设备请求打开两条历史数据通道(URL分别为http：//1.1.1.1：3000和″http：//1.1.1.2：3000″)，并标明每条数据通道将发送的负载类型和需要的带宽。该请求信令通过SIP服务器转发。前端设备接收打开历史数据通道请求后，发送打开历史数据通道请求回应给数据管理服务器。This request indicates that the data management server requests the front-end equipment to open two historical data channels (the URLs are respectively http://1.1.1.1:3000 and "http://1.1.1.2:3000"), and indicates that each data channel will The type of payload to send and the required bandwidth. The request signaling is forwarded through the SIP server. After receiving the request for opening the historical data channel, the front-end device sends a response to the request for opening the historical data channel to the data management server.
前端设备对该打开历史数据通道请求回应示例如下：An example of the response of the front-end device to the request to open the historical data channel is as follows:
该回应信令通过SIP服务器转发。The response signaling is forwarded by the SIP server.
前端设备向数据管理服务器发送其缓存的历史智能数据。The front-end device sends its cached historical intelligence data to the data management server.
需要关闭该前端设备的历史数据通道时，数据管理服务器向该前端设备发送关闭历史数据通道请求。关闭历史数据通道请求的控制信令也通过扩展GB/T28181-2011中的MANSCDP定义来实现。一条基于MANSCDP的关闭历史数据通道请求信令示例如下：When the historical data channel of the front-end device needs to be closed, the data management server sends a request for closing the historical data channel to the front-end device. The control signaling for closing the historical data channel request is also implemented by extending the definition of MANSCDP in GB/T28181-2011. A MANSCDP-based closing historical data channel request signaling example is as follows:
该请求表示数据管理服务器向前端设备请求关闭两条历史数据通道(URL分别为http：//1.1.1.1：3000和″http：//1.1.1.2：3000″)。This request means that the data management server requests the front-end device to close two historical data channels (the URLs are respectively http://1.1.1.1:3000 and "http://1.1.1.2:3000").
该请求信令通过SIP服务器转发。前端设备接收关闭历史数据通道请求后，发送关闭历史数据通道请求回应给数据管理服务器。The request signaling is forwarded through the SIP server. After receiving the request to close the historical data channel, the front-end device sends a response to the request to close the historical data channel to the data management server.
前端设备对关闭该历史数据通道回应示例如下：An example of the response of the front-end device to closing the historical data channel is as follows:
前端设备关闭历史数据通道，并停止发送历史智能数据。发送关闭历史数据通道请求回应信令通过SIP服务器转发。The front-end device closes the historical data channel and stops sending historical intelligent data. Send the request response signaling to close the historical data channel and forward it through the SIP server.
作为优选的实施方式，在传输实时智能数据过程中，有时会因为网络故障等异常情况导致实时数据通道不可用。通过实时数据通道发送心跳消息以检测实时数据通道是否异常断开。当检测到实时数据通道异常断开时，前端设备缓存数据通道异常断开期间无法发送的智能数据。数据管理服务器获知实时数据通道断开后，定时向前端设备发送打开历史数据通道请求。系统异常恢复后，前端设备能够接收到来自数据管理服务器的打开历史数据通道请求，并发送打开历史数据通道请求回应。历史数据通道打开。As a preferred implementation manner, during the process of transmitting real-time intelligent data, sometimes the real-time data channel is unavailable due to abnormal conditions such as network failure. Send a heartbeat message through the real-time data channel to detect whether the real-time data channel is disconnected abnormally. When detecting the abnormal disconnection of the real-time data channel, the front-end device caches the intelligent data that cannot be sent during the abnormal disconnection of the data channel. After the data management server learns that the real-time data channel is disconnected, it regularly sends a request to open the historical data channel to the front-end device. After the system recovers abnormally, the front-end device can receive the request for opening the historical data channel from the data management server, and send a response to the request for opening the historical data channel. The historical data channel is open.
作为优选实施方式，所述历史数据通道可以是一条或者两条或者三条，其具体数量根据实际要求设置。As a preferred implementation manner, there may be one, two or three historical data channels, and the specific number is set according to actual requirements.
实施例4：Example 4:
图4示出了本实施例的一种视频监控系统中智能数据采集系统，包括数据管理服务器、SIP服务器和若干具有智能视频分析功能的前端设备，所述数据管理服务器包括数据管理模块和数据通道管理模块，所述前端设备包括设备注册模块和数据发送模块，所述SIP服务器包括中心信令控制模块和设备管理模块。Fig. 4 shows the intelligent data acquisition system in a kind of video monitoring system of the present embodiment, comprises data management server, SIP server and some front-end equipments with intelligent video analysis function, and described data management server comprises data management module and data channel A management module, the front-end device includes a device registration module and a data sending module, and the SIP server includes a central signaling control module and a device management module.
图4中的SIP服务器通常可为视频监控业务平台，具有设备管理，信令集中控制，流媒体服务等功能。所包含中心信令控制模块的构成逻辑实体包括代理服务器、注册服务器、重定向服务器、背靠背用户代理等的一种或多种，负责核心SIP信令的应用处理。所包含设备管理模块存储、更新所注册SIP设备的状态，支持SIP设备目录的订阅和通知。The SIP server in Figure 4 can usually be a video surveillance service platform, with functions such as device management, centralized signaling control, and streaming media services. The logical entity of the included central signaling control module includes one or more of proxy server, registration server, redirection server, back-to-back user agent, etc., and is responsible for the application processing of core SIP signaling. The included device management module stores and updates the status of registered SIP devices, and supports subscription and notification of SIP device directories.
图4中的数据管理服务器可为一台装配数据管理软件的计算机。数据管理软件包含的数据通道管理模块用于订阅SIP设备目录，并根据SIP设备信息打开、关闭对应设备的实时和历史数据通道。数据管理软件包含的智能数据管理模块用于接收实时和历史数据通道上的智能数据。The data management server in Fig. 4 can be a computer equipped with data management software. The data channel management module included in the data management software is used to subscribe to the SIP device catalog, and open and close the real-time and historical data channels of the corresponding devices according to the SIP device information. The intelligent data management module included in the data management software is used to receive intelligent data on real-time and historical data channels.
图4中所示的前端设备，SIP服务器，智能数据集成服务器之间的控制信令均为SIP信令，信令之间的传输交换遵循GB/T28181-2011。The control signaling between the front-end equipment, the SIP server, and the intelligent data integration server shown in Figure 4 is all SIP signaling, and the transmission and exchange between signaling follows GB/T28181-2011.
具体地，所述设备注册模块，用于向所述中心信令控制模块发送设备注册或者注销请求。所述中心信令控制模块，负责核心SIP信令处理，包括：根据所述设备注册或者注销请求在所述设备管理模块中建立或者更新设备目录，以及，向所述数据发送模块转发所述打开或者关闭数据通道请求。所述设备管理模块，根据所述设备注册或者注销请求在所述设备管理模块中建立或者更新设备目录，支持设备目录定制及更新通知。所述数据通道管理模块，用于通过所述中心信令控制模块向所述设备管理模块获取设备目录信息，以及，根据所述设备目录信息向所述中心信令控制模块发送打开或者关闭数据通道请求。所述数据发送模块，用于根据打开或者关闭数据通道请求打开或者关闭所述数据通道，以及，在所述数据通道打开时通过所述数据通道向所述数据管理模块发送智能数据。Specifically, the device registration module is configured to send a device registration or deregistration request to the central signaling control module. The central signaling control module is responsible for core SIP signaling processing, including: establishing or updating a device directory in the device management module according to the device registration or deregistration request, and forwarding the open Or close the data channel request. The device management module establishes or updates a device directory in the device management module according to the device registration or deregistration request, and supports device directory customization and update notification. The data channel management module is configured to obtain device directory information from the device management module through the central signaling control module, and send an open or close data channel message to the central signaling control module according to the device directory information. ask. The data sending module is configured to open or close the data channel according to the request for opening or closing the data channel, and send intelligent data to the data management module through the data channel when the data channel is opened.
所述数据管理模块，用于接收数据通道上传输过来的数据并进行管理。具体地，所述数据管理模块包括数据接收模块、数据解析模块和数据存储模块，所述数据接收模块，用于接收通过所述数据通道发送的智能数据；所述数据解析模块，用于解析所述数据接收模块接收的智能数据；所述数据存储模块，用于存储所述数据解析模块解析后的智能数据。The data management module is used to receive and manage the data transmitted over the data channel. Specifically, the data management module includes a data receiving module, a data parsing module and a data storage module, the data receiving module is used to receive the intelligent data sent through the data channel; the data parsing module is used to parse the The smart data received by the data receiving module; the data storage module is used to store the smart data parsed by the data parsing module.
所述前端设备还包括数据缓存模块，用于缓存数据通道不可用期间无法发送的智能数据。所述数据通道包括实时数据通道和历史数据通道，所述实时数据通道，用于发送实时的智能数据；所述历史数据通道，用于发送缓存的智能数据。The front-end device also includes a data cache module, which is used for caching intelligent data that cannot be sent when the data channel is unavailable. The data channel includes a real-time data channel and a historical data channel, the real-time data channel is used to send real-time intelligent data; the historical data channel is used to send buffered intelligent data.
显然，上述实施例仅仅是为清楚地说明所作的举例，而并非对实施方式的限定。对于所属领域的普通技术人员来说，在上述说明的基础上还可以做出其它不同形式的变化或变动。这里无需也无法对所有的实施方式予以穷举。而由此所引伸出的显而易见的变化或变动仍处于本发明创造的保护范围之中。Apparently, the above-mentioned embodiments are only examples for clear description, rather than limiting the implementation. For those of ordinary skill in the art, other changes or changes in different forms can be made on the basis of the above description. It is not necessary and impossible to exhaustively list all the implementation manners here. And the obvious changes or changes derived therefrom are still within the scope of protection of the present invention.
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