CN1134164C - 网络监视视频摄像机系统 - Google Patents

网络监视视频摄像机系统 Download PDF

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CN1134164C
CN1134164C CNB991185102A CN99118510A CN1134164C CN 1134164 C CN1134164 C CN 1134164C CN B991185102 A CNB991185102 A CN B991185102A CN 99118510 A CN99118510 A CN 99118510A CN 1134164 C CN1134164 C CN 1134164C
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小金春夫
中村学
东村守
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Panasonic Holdings Corp
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    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
    • G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
    • G08B13/194—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems
    • G08B13/196—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
    • G08B13/19665—Details related to the storage of video surveillance data
    • G08B13/19667—Details realated to data compression, encryption or encoding, e.g. resolution modes for reducing data volume to lower transmission bandwidth or memory requirements
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
    • G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
    • G08B13/194—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems
    • G08B13/196—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
    • G08B13/19634—Electrical details of the system, e.g. component blocks for carrying out specific functions
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
    • G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
    • G08B13/194—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems
    • G08B13/196—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
    • G08B13/19654—Details concerning communication with a camera
    • G08B13/19656—Network used to communicate with a camera, e.g. WAN, LAN, Internet
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
    • G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
    • G08B13/194—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems
    • G08B13/196—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
    • G08B13/19663—Surveillance related processing done local to the camera
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
    • G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
    • G08B13/194—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems
    • G08B13/196—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
    • G08B13/19665—Details related to the storage of video surveillance data
    • G08B13/19671—Addition of non-video data, i.e. metadata, to video stream
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
    • G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
    • G08B13/194—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems
    • G08B13/196—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
    • G08B13/19665—Details related to the storage of video surveillance data
    • G08B13/19671—Addition of non-video data, i.e. metadata, to video stream
    • G08B13/19673—Addition of time stamp, i.e. time metadata, to video stream
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
    • G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
    • G08B13/194—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems
    • G08B13/196—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
    • G08B13/19678—User interface
    • G08B13/19691—Signalling events for better perception by user, e.g. indicating alarms by making display brighter, adding text, creating a sound
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
    • G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
    • G08B13/194—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems
    • G08B13/196—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
    • G08B13/19697—Arrangements wherein non-video detectors generate an alarm themselves
    • 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
    • H04N7/181—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a plurality of remote sources

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  • Human Computer Interaction (AREA)
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Abstract

由网络耦合监视器摄像机单元、数据存储单元、控制服务器、监视显示器。监视摄像机单元中的话务监视器监测网络的话务量。如果话务量高，只发送必要的数据或声音数据。当存在响的声音时，还产生报警数据，但在开关断开时不发送该数据。如果判定报警数据的一个集合有差错，不擦除该集合，但相应存储标记数据来禁止搜索该集合。在夜晚，增加曝光和发送间隔来防止把同一个数据发送两遍。

Description

网络监视视频摄像机系统
技术领域
本发明涉及使用网络的网络监视视频摄像机系统。
背景技术
用于以视频摄像机和显示监视器来监测远程图像的使用网络的网络监视视频摄像机系统是众所周知的。
第9-16685号日本专利申请临时公开揭示了一种使用数据链路ISDN的远程监视器系统。第7-288806号日本专利申请临时公开揭示了测量话务量并依据此话务量来确定分辨率。第5,745,167号美国专利揭示了一种视频监视器系统，该系统包括发送媒体、视频摄像机、监视器、VTR和控制部分。
发明内容
本发明的目的在于提供一种优良的网络监视视频摄像机系统。
依据本发明，提供了一种使用网络的网络监视视频摄像机系统，该系统包括：多个视频摄像机单元，每个单元具有不同的地址并产生视频数据，每个单元包括用于从视频数据中检测图像的运动的运动检测器以及用于与网络进行通信以发送视频数据以及运动检测器的输出的通信电路；具有不同的地址以及与网络进行通信的通信电路的数据存储终端，该终端用于通过网络接收和存储来自视频摄像机单元的视频数据；具有不同的地址以及与网络进行通信的通信电路的显示终端，该终端用于显示来自数据存储终端和视频摄像机单元的视频数据；以及耦合到网络的具有不同地址的控制服务器，该服务器自动地与网络进行通信，以控制视频摄像机单元、数据存储终端和显示终端的地址。
在本网络监视视频摄像机系统中，至少一个视频摄像机单元中还可包括用于存储视频数据的存储器以及话务检测器，该话务检测器用于检测网络的话务量、把此话务量与基准相比较且在话务量超过基准时把仅有关运动检测器检测到运动的一部分视频数据发送到显示终端。
在本网络监视视频摄像机系统中，至少一个视频摄像机单元还可包括用于产生声音数据的送话器以及话务检测器，该话务检测器用于检测网络的话务量、把此话务量与基准相比较并在话务量超过基准时把声音数据发送到显示终端而禁止发送视频数据。显示终端还可包括用于再现声音数据的扬声器。
在本网络监视视频摄像机系统中，至少一个视频摄像机单元还可包括响应于运动检测器存储视频数据的存储器、用于接收传感器信号的传感器输入电路以及用于稀疏(thin)存储器中的视频数据以把经稀疏的视频数据发送到网络的稀疏电路。
在本网络监视视频摄像机系统中，每个视频摄像机单元可包括：用于接收传感器信号的传感器输入电路；以及报警信号产生电路，响应于传感器信号和运动检测器来产生报警数据，以把报警数据以及有关报警数据的包括传感器信号的数据发送到控制服务器。控制服务器还可包括：用于存储报警数据和有关报警数据的数据的集合的数据库；用于输入关键字数据和标记数据的输入电路；依据关键字来搜索数据库中的报警数据的搜索电路；以及数据库控制电路，响应于输入电路而存储与报警数据集合中的一个集合对应的标记数据，以禁止搜索电路搜索对应于标记数据的报警数据集合中的一个集合。
在本网络监视视频摄像机系统中，每个视频摄像机单元还可包括：依据控制数据改变视频摄像机的光轴的旋转单元；用于产生旋转单元的位置数据的位置数据产生电路；用于产生时间数据的时间数据产生电路；响应于传感器信号的报警电路以及运动检测器，该运动检测器用于产生报警数据和报警类型数据并发送报警数据、报警类型数据、包括位置数据和时间数据的报警子数据以及视频摄像机单元的地址。控制服务器还可包括：用于存储视频摄像机单元的地址与视频摄像机单元的安装位置数据之间关系的表；以及控制电路，用于接收来自一个视频摄像机单元的报警数据、获得发送该报警数据的这个视频摄像机单元的位置数据和安装位置数据并把报警数据、报警类型数据、这个视频摄像机单元的安装位置数据、包括位置数据和时间数据的报警子数据以及这个摄像机单元的地址发送到显示终端。
在本网络监视视频摄像机系统中，至少一个视频摄像机单元还可包括用于接收每个视频摄像机单元周围的声音信号并从此声音信号中产生声音数据的送话器、用于把此声音数据的声级与基准相比较的比较器、用于在该声级超过基准时产生报警数据的报警电路以及用于把报警数据发送到网络或者不把报警数据发送到网络的开关。
在本网络监视视频摄像机系统中，至少一个视频摄像机单元可包括用于以曝光间隔连续产生视频数据的CCD成像器以及用于检测亮度级的亮度级检测器，以及曝光控制电路，该电路用于把曝光间隔从第一曝光间隔变到比第一曝光间隔长的第二曝光间隔，并把视频数据的发送间隔从第一间隔变到比第一间隔长的第二间隔，以防止视频摄像机单元在亮度级小于基准亮度级时把视频数据的同一个场(field)或帧发送两遍。
在本网络监视视频摄像机系统中，控制服务器可产生多个视频摄像机单元的地址表并把此地址表发送到数据存储终端。数据存储终端还可包括用于接收和存储地址表的存储器以及用于监视网络接收和存储来自网络监视视频摄像机系统内的视频摄像机单元的视频数据的监视电路，为所述多个视频摄像机单元中的每个单元唯一地分配所述地址表中的一个地址，并且在所述控制服务器的控制下进行更新。
在本网络监视视频摄像机系统中，控制服务器可产生多个视频摄像机单元的地址表并把此地址表发送到显示终端。显示终端还可包括用于接收和存储地址表的存储器以及用于监视网络接收和显示来自网络监视视频摄像机系统内的视频摄像机单元的视频数据的监视电路，为所述多个视频摄像机单元中的每个单元唯一地分配所述地址表中的一个地址，并且在所述控制服务器的控制下进行更新。
从以下详细描述并结合附图将使本发明的目的和特征变得明显起来，其中：
附图说明
图1是本发明一个实施例的网络监视视频摄像机系统的方框图；
图2是图1所示网络监视视频摄像机系统的详细方框图；
图3是图1所示视频摄像机单元的方框图；
图4是图2所示本实施例的控制单元的方框图；
图5是图2所示本实施例的报警图像服务器的方框图；以及
图6A到6C是示出曝光间隔改变操作的本实施例的时序图。
在图中，以相同的标号来表示相同或相应的元件或部分。
具体实施方式
以下将描述本发明的一个实施例。
图1是本发明实施例的网络监视视频摄像机系统的方框图。图2是图1所示网络监视视频摄像机系统的详细方框图。
本实施例的网络监视视频摄像机系统包括具有不同(唯一)地址AD11，AD12，...的多个摄像机单元1、具有地址AD3的数据存储终端3、具有地址AD2的显示终端以及具有地址AD1的控制服务器5，这些单元通过网络2相互耦合。
如图2所示，有不同类型的摄像机单元1a、1b和1c耦合到网络2。每个摄像机单元1包括依据来自控制服务器5的位置命令数据(控制数据)来旋转视频摄像机70(视频摄像机的光轴)的旋转单元43以及用于从连续帧之间的被检测图像中检测图像运动的运动检测电路10。此外，给各个摄像机单元1提供了送话器(microphone)54。然而，也可省略旋转单元43或送话器54。
图3是图1所示摄像机单元1b的方框图。摄像机单元1b包括视频摄像机60和旋转单元43。在视频摄像机60中，透镜单元21接收视频摄像机60周围的图像并在CCD成像器22上形成图像，该CCD成像器22的曝光间隔由曝光间隔控制电路26来控制。AGC电路23以受控的增益放大来自CCD成像器22的视频信号。a/d转换器24把来自AGC电路23的视频信号转换成提供给视频处理电路27的数字视频数据。摄像机控制电路25依据此视频数据和来自控制服务器5的控制数据来控制透镜单元21。摄像机控制电路25还依据来自控制服务器5的控制数据来控制旋转单元43。旋转单元43中的位置数据产生电路43a产生包括摇摄(pan)位置数据和仰摄(tilt)位置数据的位置数据，此位置数据将被提供给摄像机控制电路25和存储器31，从而被发送到控制服务器5。把来自视频处理电路27的视频数据提供给JPEG编码器28，JPEG编码器28用于通过压缩把视频数据编码成为编码视频信号并提供给运动检测电路10。把经编码的视频数据提供给存储器31而存储该编码视频数据。还给存储器31提供来自报警监视电路30的报警数据、来自旋转单元43的位置数据以及来自时间数据产生电路29的时间数据。
给报警监视电路30提供来自传感器输入电路34的传感器信号、摄像机控制电路25的输出、来自运动检测电路10的运动检测信号。当运动检测电路10检测到连续帧之间的视频数据的运动时，报警监视电路30产生报警数据，以通过TCP/IP(传输控制协议/网间协议)电路33把此报警数据发送到控制服务器5。此外，当把任一个传感器信号输入传感器输入电路34时，报警监视电路33产生报警数据，以通过TCP/IP电路33把此报警数据发送到控制服务器5。另一方面，把包括报警数据、报警类型数据的报警记录(log)数据(子报警数据)和与报警、位置数据和时间数据有关的视频数据的图像存储在存储器31中，并通过服务器32和TCP/IP电路33发送到控制服务器5。
摄像机单元1b还包括用于存储控制服务器5的地址AD1、它自己的地址AD12和从控制服务器5发送的地址表的存储器36。当摄像机单元1b耦合到网络2时，摄像机单元1b与控制服务器5进行通信，以接收它自己的地址AD12和控制服务器5的地址AD1，或者控制服务器广播在加电时用于响应分配地址的请求。摄像机控制单元25接收用于旋转单元43和透镜单元21的控制数据，曝光间隔控制电路26把它自己的地址AD12用作目的地，而把控制服务器5的地址AD1用作源。
摄像机单元1b还包括送话器54，送话器54用于接收送话器54周围的声音信号并把此声音信号提供给声音信号处理电路55，声音信号处理电路55处理此声音信号来产生声音数据以提供给存储器31来存储该声音数据。
摄像机单元1b还包括响应于TCP/IP电路33的话务检测电路35以及用于检测网络2的话务的报警监视电路30。当话务量大于基准值时，话务检测电路35控制服务器32只发送存储器31中有关报警的视频数据的必要图像。即，当话务量大于基准值时，服务器32在存在任何传感器信号或者运动检测信号时把来自存储器31的视频数据发送到网络2。当话务量小于基准值时，话务检测电路35控制服务器32连续发送视频数据的图像。此外，在正常情况下，基本上与视频数据同时地发送声音数据。然而，如果话务量大于基准值，则话务检测电路35可控制服务器32只发送声音数据而禁止发送视频数据。另一方面，由TCP/IP电路33分开地发送报警数据。然后，立即给控制服务器5和显示终端4提供报警数据，以及关于报警肯定被发送的视频数据的图像。然后，控制服务器5增加发送该报警数据的视频摄像机的优先级，以抑制耦合到网络的其它单元的通信，以减少话务量。这样使得把此视频数据从发送该报警的摄像机单元1的连续地发送到显示终端4。
摄像机单元1b还包括比较器56和开关57。比较器56把声音数据的声级与基准声音值相比较。当此声级大于基准声音值时，报警监视电路30产生报警数据，以在开关57闭合时把此报警数据发送到网络2。如果开关57断开，则不产生表示存在响亮的声音的报警数据。
图4是本实施例的控制单元11的方框图。除了透镜单元21、CCD成像器22、AGC电路23、a/d转换器24和视频处理电路27以外，控制单元1包括与视频摄像机1基本上相同的电路。此外，控制单元11还包括用于存储视频数据的存储器58以及用于稀疏视频数据的稀疏控制电路59。存储器58响应于来自摄像机70中的运动检测电路10的运动检测信号存储来自摄像机70的视频数据。稀疏电路59响应于来自传感器信号输入电路34的一个传感器信号来稀疏视频数据。稀疏控制电路59通过处理使得孔径(aperture)的尺寸得以改变来产生稀疏的视频信号。即，增大视频信号的块(block)(像素)单位的尺寸，从而JPEG编码器通过压缩产生较低数量的视频数据。
把来自摄像机71的视频信号和运动检测信号提供给控制部件12，控制部件12还接收传感器信号。控制部件12包括响应于运动检测信号和传感器信号产生报警数据的报警监视电路45。把视频信号和报警数据提供给报警图像服务器13，报警图像服务器13暂时存储视频信号并把报警数据立即发送到网络2。
图5是本实施例的报警图像服务器13的方框图。除了透镜单元21、CCD成像器22、AGC电路23、a/d转换器24和视频处理电路27以外，报警图像服务器13包括与视频摄像机1b基本上相同的电路。此外，报警图像服务器13暂时存储通过控制部件12从来自视频摄像机71的视频信号中获得的视频数据，并发送来自存储器31的视频数据同时观察网络2的话务量。
控制服务器5包括通信电路41、控制电路160、地址表52、位置表53、数据库47、优先级表161和键盘46。当控制服务器5接收到来自一个摄像机单元1的分配地址请求时，控制服务器5响应于来自这一摄像机单元1的请求把一地址分配给摄像机单元1，并产生地址表52。如果另一个摄像机单元1把用于分配该地址的请求发送到控制服务器5，则控制服务器分配该地址并更新地址表52。控制服务器把此地址表发送到数据存储终端4和像素终端4，以在数据存储终端3和像素终端4中提供地址表152。
控制服务器5还包括表示摄像机单元1的地址与安装摄像机单元1的位置之间关系的位置表53。控制服务器5还包括在产生报警数据和报警类型数据时存储来自摄像机单元1的视频数据、旋转单元43的时间数据、位置数据以及摄像机单元1的地址数据和位置数据的集合的数据库。控制服务器5接收来自键盘46的关键字，以搜索数据库47中的对应数据集合。此外，如果操作人员判定报警有差错，则操作人员操作键盘46来存储具有对应数据集合的标记数据，以使该指示报警的数据集合不必被搜索。
当控制服务器5接收到此报警数据时，控制范围5接收报警类型数据、时间数据、位置数据和地址数据，并从具有地址数据的位置表53中读取位置数据，并把报警数据、报警类型数据、时间数据、位置数据、地址数据和位置数据发送到显示终端4以显示这些数据。
控制服务器5包括如上所述的优先级表161。控制服务器5增加发送该报警数据的视频摄像机的优先级，以响应于该报警数据抑制耦合到网络的其它单元的通信，从而减少话务量。这样使得把视频数据从发送该报警的摄像机单元1连续发送到显示终端4。
数据存储终端3包括通信电路41、网络监视电路51、地址表152和存储器50。网络监视电路51监视网络2搜索本网络监视摄像机系统的地址数据。如果把此地址数据分配给本网络监视摄像机系统或分配给数据存储终端3，则数据存储终端3把接收到的数据存储在存储器50中。如果没有来自控制服务器5的显示存储器50中的数据的请求，则数据存储终端3使用地址表152把对应的数据集合发送到显示终端4。
显示终端4包括通信电路41、网络监视电路51、地址表152、显示监视器48、声音数据产生电路53和扬声器49。网络监视电路51监视网络2搜索本网络监视摄像机系统的地址数据。如果把源地址数据分配给本网络监视摄像机系统或目的地地址为显示终端4，则数据存储终端3在显示终端48上显示所发送的数据。如果该数据是声音数据，则由声音数据再现电路53和扬声器49再现该声音数据。
在摄像机单元1b中，曝光间隔控制电路26依据来自控制服务器的控制数据、视频数据的等级以及来自时间数据产生电路29的时间数据来控制曝光间隔。当视频数据的亮度级小于基准亮度级时，曝光间隔控制电路26增大曝光间隔，例如使曝光间隔变成正常曝光间隔的两倍，从而在视频摄像机1b的位置处很暗时增加感光性。在此情况下，曝光间隔控制电路26控制存储器31以正常发送间隔两倍的间隔把视频数据发送到网络，从而减少网络2中的话务量。曝光间隔控制电路26可依据来自时间数据产生电路29的时间数据来控制曝光间隔，因为时间数据报告了夜晚和白天。在夜晚时，曝光间隔控制电路26增大曝光间隔。
图6A到6C是示出曝光间隔改变操作的本实施例的时序图。
如图6A所示，在白天，以每一场按一个间隔T从CCD成像器22中读取视频信号。另一方面，以每一场按一个间隔2T从CCD成像器22中读取视频信号。即，白天的曝光时间间隔为T，夜晚的为2T。相应地，如图6B所示，在夜晚，每单位亮度的视频信号电平(2A)为白天的视频信号电平(A)的两倍。
控制服务器5还包括名称表，该名称表表示了地址与摄像机单元1的名称之间的关系，以每当加电时动态地分配物理地址。即，当控制服务器5接通时，控制服务器5广播响应请求。摄像机单元1、数据存储终端4和显示终端4中的每一个响应于此并连续发送域名。控制服务器5把由控制服务器5管理的实际地址分配给摄像机单元1、数据存储终端4和显示终端4。即，控制服务器5存储域名及相关的物理地址作为名称表72。然后，控制服务器5报告摄像机单元1、数据存储终端4和显示终端的物理地址。然后，每个摄像机单元1可使用域名和物理地址。如上所述，数据存储终端3和显示终端4监视通过网络发送的目的地地址，如果该地址在网络监视视频摄像机系统内时，则数据存储终端3和显示终端4获取视频数据和其它数据。此外，操作人员可命令要显示哪个图像。即，操作人员通过输入一摄像机单元1的域名来操作键盘46显示来自这一摄像机单元1的图像。此外，操作人员可通过操作键盘46再现来自数据存储终端3的图像。
包括送话器54的摄像机单元1可获得视频和声音数据并如下发送此视频数据和声音数据：
摄像机单元1使用网络域格式产生不同的视频和声音数据的文件，并把声音数据文件和视频数据文件独立地发送到显示终端4。控制服务器5单独地控制每个摄像机单元1的用于声音数据和视频数据的地址。即，控制服务器5表面上以域名控制地址，在内部以动态分配的IP地址来控制系统。

Claims (9)

1.一种使用网络的网络监视视频摄像机系统，其特征在于包括：
多个视频摄像机单元，每个单元具有不同的地址并产生视频数据，每个单元包括用于从所述视频数据中检测图像的运动的运动检测器以及用于与所述网络进行通信以发送所述视频数据以及所述运动检测器的输出的通信装置；其中，至少一个所述摄像机单元进一步包括用于存储所述视频数据的存储器，以及话务检测装置，所述话务检测装置用于检测所述网络的话务量，并且将所述话务量与基准相比较且在所述话务量超过所述基准时仅把有关所述运动检测器检测到所述运动的一部分所述视频数据进行发送；
具有不同的地址以及与所述网络进行通信的通信装置的存储装置，所述存储装置用于通过所述网络接收和存储来自所述视频摄像机单元的视频数据；
具有不同的地址以及与所述网络进行通信的通信装置的显示装置，所述显示装置用于显示来自所述存储装置和所述视频摄像机单元的视频数据；以及
耦合到所述网络的具有不同地址的控制服务器，所述服务器自动地与所述网络进行通信，以控制所述视频摄像机单元、所述存储装置和所述显示装置的所述地址。
2.如权利要求1所述的网络监视视频摄像机系统，其特征在于至少一个所述视频摄像机单元还包括用于产生声音数据的送话器，并且在所述话务量超过所述基准时，所述话务检测装置把所述声音数据发送到所述显示装置而禁止发送所述视频数据，所述显示装置还包括用于再现所述声音数据的扬声器。
3.如权利要求1所述的网络监视视频摄像机系统，其特征在于至少一个所述视频摄像机单元还包括用于接收传感器信号的传感器输入装置以及用于通过增大所述视频数据的块单位的尺寸来减少所述存储器中的所述视频数据量以把经减少的所述视频数据发送到所述网络的稀疏装置。
4.如权利要求1所述的网络监视视频摄像机系统，其特征在于每个所述视频摄像机单元包括：
用于接收传感器信号的传感器输入装置；以及
报警信号产生装置，响应于所述传感器信号和所述运动检测器来产生报警数据，以把所述报警数据以及把包括所述传感器信号的有关所述报警数据的数据发送到所述控制服务器，所述控制服务器还包括：
用于存储所述报警数据和有关所述报警数据的数据的集合的数据库；以及
用于输入关键字数据和标记数据的输入装置；
依据所述关键字来搜索所述数据库中的所述报警数据的搜索装置，
其中响应于所述输入装置存储与所述报警数据的所述集合中的一个集合对应的所述标记数据，以禁止所述搜索装置搜索对应于所述标记数据的所述报警数据的所述集合中的一个集合。
5.如权利要求1所述的网络监视视频摄像机系统，其特征在于每个所述视频摄像机单元还包括：
依据控制数据改变所述视频摄像机的光轴的旋转单元；
用于产生所述旋转单元的位置数据的位置数据产生装置；
用于产生时间数据的时间数据产生装置；
响应于传感器信号的报警装置，所述运动检测器用于产生报警数据和报警类型数据并发送所述报警数据、所述报警类型数据、包括所述位置数据和所述时间数据的报警子数据以及所述视频摄像机单元的所述地址，所述控制服务器还包括：
用于存储所述视频摄像机单元的地址与所述视频摄像机单元的安装位置数据之间关系的表；以及
控制装置，用于接收来自所述视频摄像机单元的所述报警数据、获得发送所述报警数据的所述视频摄像机单元的所述位置数据和所述安装地点数据并把所述报警数据、所述报警类型数据、所述视频摄像机单元的所述安装地点数据、包括所述位置数据和所述时间数据的报警子数据以及所述摄像机单元的所述地址发送到所述显示装置。
6.如权利要求1所述的网络监视视频摄像机系统，其特征在于至少一个所述视频摄像机单元还包括用于接收所述每个视频摄像机单元周围的声音信号并从所述声音信号中产生声音数据的送话器、用于把所述声音数据的声级与基准相比较的比较器、用于在所述声级超过基准时产生报警数据的报警装置以及用于把所述报警数据发送到所述网络或者不把所述报警数据发送到所述网络的开关。
7.如权利要求1所述的网络监视视频摄像机系统，其特征在于至少一个所述视频摄像机单元包括用于以曝光间隔连续产生所述视频数据的CCD成像器以及用于检测亮度级的亮度级检测装置以及曝光控制装置，所述曝光控制装置用于把所述曝光间隔从第一曝光间隔变到比所述第一曝光间隔长的第二曝光间隔，并把所述视频数据的发送间隔从第一间隔变到比所述第一间隔长的第二间隔，以防止所述视频摄像机单元在所述亮度级小于基准亮度级时把视频数据的同一个场或帧发送两遍。
8.如权利要求1所述的网络监视视频摄像机系统，其特征在于所述控制服务器产生所述多个视频摄像机单元的地址表并把所述地址表发送到所述存储装置，所述存储装置还包括用于接收和存储所述地址表的存储器以及用于监视所述网络接收和存储来自所述网络监视视频摄像机系统内的所述视频摄像机单元的所述视频数据的监视装置，为所述多个视频摄像机单元中的每个单元唯一地分配所述地址表中的一个地址，并且在所述控制服务器的控制下进行更新。
9.如权利要求1所述的网络监视视频摄像机系统，其特征在于所述控制服务器产生所述多个视频摄像机单元的地址表并把所述地址表发送到所述显示装置，所述显示装置还包括用于接收和存储所述地址表的存储器以及用于监视所述网络接收和显示来自所述网络监视视频摄像机系统内的所述视频摄像机单元的所述视频数据的监视装置，为所述多个视频摄像机单元中的每个单元唯一地分配所述地址表中的一个地址，并且在所述控制服务器的控制下进行更新。
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US6323897B1 (en) 2001-11-27
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US20010056579A1 (en) 2001-12-27
US7028328B2 (en) 2006-04-11
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