WO2018176214A1 - 一种分体式高清网络摄像机 - Google Patents

一种分体式高清网络摄像机 Download PDF

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Publication number
WO2018176214A1
WO2018176214A1 PCT/CN2017/078399 CN2017078399W WO2018176214A1 WO 2018176214 A1 WO2018176214 A1 WO 2018176214A1 CN 2017078399 W CN2017078399 W CN 2017078399W WO 2018176214 A1 WO2018176214 A1 WO 2018176214A1
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module
wireless
network
end portion
network camera
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PCT/CN2017/078399
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English (en)
French (fr)
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舒炜
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杭州如道科技有限公司
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Priority to PCT/CN2017/078399 priority Critical patent/WO2018176214A1/zh
Publication of WO2018176214A1 publication Critical patent/WO2018176214A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast

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  • the invention relates to the field of networked monitoring, in particular to a split-type high-definition network camera that realizes long-time standby, fast start, and satisfies high-definition audio and video transmission.
  • the traditional network camera adopts integrated design and consumes a lot of power, generally above 5W. If it is continuously online, it needs to have DC power supply online. In many occasions, such as household environment, the wiring and cable wiring will affect the decoration effect during installation. , often give up the configuration; while the battery-powered standby time is short, the battery needs to be replaced frequently, the utility is poor, and finally the use is often abandoned. In many applications, video recording is not required.
  • the actual use time of the network camera is often small, but it needs to support remote networking startup.
  • the traditional wireless network camera often adopts an integrated design.
  • the startup speed is slow, and generally takes about 15 seconds. If the sleep startup mode is adopted, the customer experience is poor.
  • Some cameras use a front-end alarm to activate, although they can support long-term standby, but can not support the needs of customers remote network startup.
  • the purpose of the present invention is to provide a split-type high-definition network camera that supports ultra-long standby, quick start, and high-definition audio and video transmission under the premise of supporting the remote connection of the customer.
  • a split type high definition network camera comprising a front end portion and a rear end portion, the front end portion being composed of a first wireless module, a first Wi-fi module, an uncompressed network camera module and a battery
  • the module is composed of a second wireless module, a second Wi-fi module, a host, a video compression module, a wired power module and a network module, and the wired power module is provided to the second wireless module, the host, and the second Wi-fi module.
  • video compression module network module power supply.
  • the host acquires an instruction through the network module, where the command includes starting and standby, and the host controls the second wireless module to broadcast the command in real time;
  • the front end part is normally in a standby state, and in the standby state, except for the first wireless module, the rest is turned off;
  • the first wireless The module is powered by the battery module, adopts a normal sleep, a timed wake mode, and periodically starts to obtain an instruction broadcast by the second wireless module;
  • the first wireless module of the current end portion activates the battery module to supply power to the first Wi-fi module and the uncompressed network camera module, and the first Wi-fi module and the uncompressed network camera module are activated.
  • the uncompressed webcam module collects audio and video information
  • the code stream is generated and sent to the back end through the first Wi-fi module
  • the second Wi-fi module obtains the audio and video code stream
  • the audio and video compressed code stream compressed by the video compression module is uploaded to the network by the network module.
  • the first wireless module After the first wireless module of the current end portion receives the standby signal, the first wireless module cuts off the power supply of the battery module to the first Wi-fi module and the uncompressed network camera module.
  • first wireless module and the second wireless module are both Bluetooth modules, or all Zigbee modules, or other wireless communication modules that adopt normal sleep and timed wakeup functions.
  • split-type design consisting of front-end and back-end split type; front-end battery-powered, dual wireless and back-end connection, truly realizes that the front-end camera has no network cable, no wire "all wireless" configuration; improves customer experience.
  • the front-end achieves ultra-low power consumption and long standby time under the premise of supporting the back-end networking startup.
  • the front and back ends are connected by dual wireless communication.
  • the Bluetooth When the front end is in standby, the Bluetooth is responsible for the low-power sleep state.
  • the timing ( ⁇ 1 second) wakes up to obtain the back-end start signal, the front-end part is powered by the battery, and the front-end is in standby, after and after.
  • Support high-frequency communication ⁇ 1 second to support ultra-low power consumption ( ⁇ 5 microwatts), long time standby (each battery No. 5 battery standby year); thus solving the front-end support back-end fast start
  • the contradiction between long standby and power supply greatly reduces the frequency of battery replacement and improves the customer experience.
  • the invention uses dual wireless design, in the case of networking ultra-low power standby, the front-end audio and video code stream in the startup state is backed by Wi-fi, supporting high-definition audio and video streams The bandwidth requirements for the transmission.
  • split audio and video compression post start faster.
  • the front end part adopts the uncompressed network camera to be responsible for audio and video collection, the back end is responsible for audio and video compression, and realizes compression and backward movement; the front end non-compressed camera is in
  • the code is less loaded than the integrated network camera, the startup is faster, the startup time is only 2-3 seconds, which is nearly 5 times faster than the traditional integrated camera startup time (about 15 seconds), thus shortening Customer networking wait time improves customer experience.
  • Figure 1 is a schematic view of the structure of the present invention.
  • a split type high-definition network camera includes a front end portion and a rear end portion, and the front end portion is composed of a first wireless module, a first Wi-fi module, an uncompressed network camera module, and a battery module; the rear end portion is composed of a second wireless module, The second Wi-fi module, the host, the video compression module, the wired power module and the network module, the wired power module to the second wireless module, the second Wi-fi module, the video compression module, The network module is powered.
  • the first wireless module and the second wireless module communicate through Bluetooth or a Zigbee protocol for receiving or transmitting a standby/start command.
  • the first wireless module in the front end portion adopts a sleep timing start mode, and the timing (interval ⁇ 1 second) listening mode acquires an instruction sent by the second wireless module in the back end portion, thereby realizing ultra-low power consumption ( ⁇ 5 microwatts) and super front end.
  • Long-term standby (a 5th battery standby year); thus greatly reducing the battery replacement frequency and improving the customer experience.
  • the first Wi-fi module and the second Wi-fi module are connected by Wi-fi, and are used for transmitting high-definition audio and video code streams, thereby ensuring the bandwidth requirement of the uncompressed high-definition audio and video.
  • the front end part adopts the uncompressed network camera to be responsible for audio and video collection, and the audio and video compression is performed by the back end to achieve compression and backward movement; since the back end adopts online power supply, no startup time is required, and the front end non-compressed camera has less loading code, and is connected to the back end. Starts faster when the signal is activated, and the startup time is only 2-3 seconds, which is faster than the integrated compression camera startup time (about 15 seconds), which shortens the waiting time of the customer and improves the experience.
  • the working process of the split type high-definition network camera of the present invention is as follows: the host acquires an instruction through a network module, the command includes starting and standby, and the host controls the second wireless module to broadcast a real-time instruction; the front end part is normally in a standby state, in a standby state. In addition to the first wireless module, the rest are powered off; the first wireless module is powered by the battery module, adopts a normal sleep, a timed wake mode, and periodically acquires an instruction broadcast by the second wireless module;
  • the first wireless module of the current end portion controls the battery module to supply power to the first Wi-fi module and the uncompressed network camera module through the interface control power switch, and the first Wi-fi module and the uncompressed network camera module are start up.
  • the uncompressed network camera module collects audio and video information to generate an uncompressed audio and video code stream, and sends it to the back end through the first Wi-fi module, and the second Wi-fi module obtains the audio and video code stream.
  • the compressed audio and video code stream generated by the video compression module is uploaded to the network by the network module.
  • the first wireless module of the current end portion cuts off the power supply of the first Wi-fi module and the uncompressed network camera module by the battery module through the interface control power switch.
  • the front-end camera adopts a non-compressed mode, and is configured with a Wi-fi high-definition digital uncompressed camera connected to the 99141 solution, which is powered by a battery, and a serial power control switch is connected to the power supply line;
  • the first wireless module adopts the CC2541 Bluetooth of Texas Instruments. Module, the battery uses 8650 5th battery 4 sections in parallel, through the linear regulator LDO for Bluetooth power supply; according to the start and standby commands of the received broadcast packet,
  • the front-end Bluetooth module outputs I/O switch commands to control the series-connected touch-switches on the power supply line to control the power supply status of the front-end Wi-fi HD digital uncompressed camera.
  • the back end consists of Bluetooth module, wireless Wi-fi router, and HiSilicon 3518e-v200 module (including network interface, DC power supply.
  • HiSilicon 3518e-v200 module including network interface, DC power supply.
  • the Bluetooth module is commanded through the serial port. Broadcasting the start signal, and receiving the returned audio and video code stream by the wireless Wi-fi router after the front end is started to enter the working state, and compressing and encoding the received audio and video code stream through the Xiongmai-His 3518e-v200 module, and then Upload the network.
  • the second wireless Wi-fi module generally adopts a wireless router of a local area network, and receives the audio and video code stream returned by the first wireless Wi-fi module from both the wireless network card, and transmits it to the Xiongmai-Haisi 3518e through the local area network.
  • the -v200 module is compressed to generate an audio and video compressed code stream upload network.
  • This embodiment supports the back end to transmit an audio code stream to the front end.
  • the front end portion is the same as the implementation 1, and the back end portion is composed of the Android version network set top box, the wireless local area network Wi-fi router, the USB serial port converter and the second bluetooth module.
  • the back end replaces the Xiongmai-Haisi 3518e-v200 module with the Android version of the set-top box to reduce configuration costs.
  • the network set top box can also be replaced by other hardware by supporting audio and video code stream compression.
  • Embodiment 1 can be extended to support an electronic visual doorbell for remote audio and video networking, an electronic visual safe for remote audio and video networking, and other audio and video applications that are inconvenient for wired power.

Abstract

本发明公开了一种分体式高清网络摄像机,包括前端部分和后端部分，前端部分由第一无线模块、第一Wi-fi模块、非压缩网络摄像头模块和电池模块组成；后端部分由第二无线模块、第二Wi-fi模块、主机、音视频压缩模块、有线电源模块及网络模块组成，有线电源模块给第二无线模块、第二Wi-fi模块、音视频压缩模块、网络模块供电。本发明唤醒速度快，待机时间长，兼顾了联网待机的超低功耗的实现和高清音视频通信的大带宽要求，提高了客户的体验价值。

Description

一种分体式高清网络摄像机 技术领域
本发明涉及联网监控领域，尤其涉及一种实现超长时间待机、快速启动、满足高清音视频传输的分体式高清网络摄像机。
背景技术
传统的网络摄像机采用一体式设计，而且功耗较大，一般在5W以上，如果持续在线，需要有直流电源在线供电，而在很多场合，如家用环境，安装时电线、网线布线会影响装修效果，往往放弃配置；而采用电池供电待机时间短，需要频繁更换电池，实用性差，最后往往放弃使用。而在很多应用场合，并不需要录像，网络摄像机实际使用时间往往不多，但需要支持远程联网启动。
传统的无线网络摄像机往往采用一体式设计，在节能休眠重启时启动速度较慢，一般需要15秒左右，如采用休眠启动方式则客户体验较差。
有一些摄像机采用前端报警启动的方式，虽然可以支持长时间待机，却不能支持客户远程联网启动的需求。
发明内容
本发明的目的是针对现有技术的不足，提供一种支持客户远程联网启动前提下，实现超长时间待机、快速启动、满足高清音视频传输的分体式高清网络摄像机。
本发明的目的是通过以下技术方案实现的：一种分体式高清网络摄像机,包括前端部分和后端部分，前端部分由第一无线模块、第一Wi-fi模块、非压缩网络摄像头模块和电池模块组成；后端部分由第二无线模块、第二Wi-fi模块、主机、视频压缩模块、有线电源模块及网络模块组成，有线电源模块给第二无线模块、主机、第二Wi-fi模块、视频压缩模块、网络模块供电。
主机通过网络模块获取指令，所述指令包括启动和待机，主机控制第二无线模块实时广播指令；前端部分常态处于待机状态，在待机状态下除了第一无线模块，其余部分均关机；第一无线模块通过电池模块供电，采用常态休眠、定时唤醒模式，并定时启动获取第二无线模块广播的指令；
当前端部分的第一无线模块接收到启动信号后，激发电池模块给第一Wi-fi模块、非压缩网络摄像头模块供电，第一Wi-fi模块和非压缩网络摄像头模块被启动。前端部分的各个模块启动后，非压缩网络摄像头模块采集音视频信息、 生成码流，并通过第一Wi-fi模块发送到后端，第二Wi-fi模块获得音视频码流，经视频压缩模块压缩后的音视频压缩码流由网络模块上传到网络。
当前端部分的第一无线模块接收到待机信号后，第一无线模块切断电池模块对第一Wi-fi模块、非压缩网络摄像头模块的供电。
进一步地,所述第一无线模块和第二无线模块均为蓝牙模块，或均为Zigbee模块、或为其它采用常态休眠、定时唤醒功能的无线通讯模块。
本发明的有益效果在于：
1、分体式设计，由前端和后端分体式组成；前端采用电池供电，双无线与后端联接，真正实现了前端摄像头无网线，无电线“全无线”配置；提高了客户体验效果。
2、前端在支持后端联网启动前提下实现超低功耗、超长时间待机。前、后端由双无线通信联接，在前端待机时由蓝牙负责低功耗休眠状态下定时(<1秒)唤醒获取后端启动信号，前端部分采用电池供电，前端在待机时，在与后端保持高频通信(<1秒)前提下支持超低功耗(<5微瓦)、超长时间待机(每节5号电池待机壹年)；从而解决了前端支持后端快速启动前提下超长待机与电源供电的矛盾，大大降低电池更换频率，提高了客户体验效果。
3、支持高清音视频，本发明采用双无线设计，在兼顾联网超低功耗待机的情况下，启动工作状态下前端音视频码流则由Wi-fi负责回传，支持高清音视频码流的传输的带宽要求。
4、分体式音视频压缩后置，启动更快。分体式并实现音视频采集、音视频压缩分离，音视频压缩后置，相对于一体式摄像机大幅提高启动速度。由于后端采用在线供电，不影响启动速度，启动速度由前端决定，因此设计成前端部分采用非压缩网络摄像机负责音视频采集，后端负责音视频压缩，实现压缩后移；前端非压缩摄像头在接到后端启动信号时比一体化网络摄像机加载的代码少，启动更快，启动时间仅2-3秒，比传统一体式摄像机启动时间(约15秒)快了近5倍，从而缩短了客户联网等待时间，提高了客户体验效果。
附图说明
图1为本发明的结构示意图。
具体实施方式
一种分体式高清网络摄像机,包括前端部分和后端部分，前端部分由第一无线模块、第一Wi-fi模块、非压缩网络摄像头模块和电池模块组成；后端部分由第二无线模块、第二Wi-fi模块、主机、视频压缩模块、有线电源模块及网络模块组成，有线电源模块给第二无线模块、第二Wi-fi模块、视频压缩模块、 网络模块供电。
双无线，支持后端联网超低功耗待机及工作大带宽的实现。其中第一无线模块和第二无线模块通过蓝牙、或Zigbee协议进行通讯，用于接收或发送待机/启动指令。前端部分的第一无线模块采用休眠定时启动模式，定时(间隔<1秒)侦听模式获取后端部分第二无线模块发送的指令，实现了前端超低功耗(<5微瓦)、超长时间待机(一节5号电池待机壹年)；从而大大降低电池更换频率，提高了客户体验效果。同时，第一Wi-fi模块和第二Wi-fi模块通过Wi-fi相连，用于传输高清音视频码流，保证了非压缩高清音视频的带宽要求。
压缩后移的实现。前端部分采用非压缩网络摄像机负责音视频采集，由后端进行音视频压缩，实现压缩后移；由于后端采用在线供电，无需启动时间，而前端非压缩摄像头加载代码少，在接到后端启动信号时启动更快，启动时间仅2-3秒，比一体压缩式摄像机启动时间(约15秒)更快，从而缩短了客户等待时间，提高了体验效果。
本发明所述的分体式高清网络摄像机的工作过程如下：主机通过网络模块获取指令，所述指令包括启动和待机，主机控制第二无线模块实时广播指令；前端部分常态处于待机状态，在待机状态下除了第一无线模块，其余部分均关机；第一无线模块通过电池模块供电，采用常态休眠、定时唤醒模式，并定时获取第二无线模块广播的指令；
当前端部分的第一无线模块接收到启动信号后，通过接口控制电源开关控制电池模块给第一Wi-fi模块、非压缩网络摄像头模块供电，第一Wi-fi模块和非压缩网络摄像头模块被启动。前端部分的各个模块启动后，非压缩网络摄像头模块采集音视频信息生成非压缩音视频码流，并通过第一Wi-fi模块发送到后端，第二Wi-fi模块获得音视频码流，经视频压缩模块压缩后生成压缩的音视频码流由网络模块上传到网络。
当前端部分的第一无线模块接收到待机信号后，通过接口控制电源开关切断电池模块对第一Wi-fi模块、非压缩网络摄像头模块的供电。
下面结合实施例对本发明作进一步说明。
实施例1
在本实施例，前端摄像头采用非压缩模式的、配置Wi-fi高清数码非压缩摄像头联咏99141方案，由电池供电，供电线路上串联电源控制开关；第一无线模块采用德州仪器公司的CC2541蓝牙模块，电池采用18650五号电池4节并联，通过线性稳压器LDO为蓝牙供电；根据接收的广播包的启动及待机指令， 前端蓝牙模块输出I/O开关指令控制供电线路上串联触压切换开关，控制前端Wi-fi高清数码非压缩摄像头的供电状态。
后端由蓝牙模块、无线Wi-fi路由器、海思3518e-v200模组(包括网络接口，直流电源组成。雄迈-海思3518e-v200模组接收到网络联网指令后，通过串口指令蓝牙模块广播启动信号，并在前端启动进入工作状态后由无线Wi-fi路由器接收回传的音视频码流，通过雄迈-海思3518e-v200模组对收到音视频码流进行压缩编码，再上传网络。
在本实施例，第二无线Wi-fi模块一般采用局域网的无线路由器，在接收到第一无线Wi-fi模块既无线网卡回传的音视频码流，通过局域网传给雄迈-海思3518e-v200模组，经过压缩后生成音视频压缩码流上传网络。
本实施例支持后端向前端传送音频码流。
实施例2
在本实施例，前端部分与实施1同，后端部分则由安卓版网络机顶盒，无线局域网Wi-fi路由器，USB串口转换器和第二蓝牙模块组成。后端通过安卓版网络机顶盒代替雄迈-海思3518e-v200模组，以降低配置成本。
在本实施例，网络机顶盒也可以由支持音视频码流压缩挽留其他硬件代替。
实施例3
实施例1的前端扩展后可用于支持远程音视频联网的电子可视门铃，支持远程音视频联网的电子可视保险箱，以及其他不便有线供电的音视频应用。

Claims (2)

  1. 一种分体式高清网络摄像机,其特征在于，包括前端部分和后端部分，前端部分由第一无线模块、第一Wi-fi模块、非压缩网络摄像头模块和电池模块组成；后端部分由第二无线模块、第二Wi-fi模块、主机、视频压缩模块、有线电源模块及网络模块组成，有线电源模块给第二无线模块、主机、第二Wi-fi模块、视频压缩模块、网络模块供电。
    主机通过网络模块获取指令，所述指令包括启动和待机，主机控制第二无线模块实时广播指令；前端部分常态处于待机状态，在待机状态下除了第一无线模块，其余部分均关机；第一无线模块通过电池模块供电，采用常态休眠、定时唤醒模式，并定时启动获取第二无线模块广播的指令；
    当前端部分的第一无线模块接收到启动信号后，激发电池模块给第一Wi-fi模块、非压缩网络摄像头模块供电，第一Wi-fi模块和非压缩网络摄像头模块被启动。前端部分的各个模块启动后，非压缩网络摄像头模块采集音视频信息、生成码流，并通过第一Wi-fi模块发送到后端，第二Wi-fi模块获得音视频码流，经视频压缩模块压缩后的音视频压缩码流由网络模块上传到网络。
    当前端部分的第一无线模块接收到待机信号后，第一无线模块切断电池模块对第一Wi-fi模块、非压缩网络摄像头模块的供电。
  2. 根据权利要求1所述的分体式高清网络摄像机，其特征在于，所述第一无线模块和第二无线模块均为蓝牙模块，或均为Zigbee模块、或为其它采用常态休眠、定时唤醒功能的无线通讯模块。
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