JP2001218189A - Monitor camera system - Google Patents
Monitor camera systemInfo
- Publication number
- JP2001218189A JP2001218189A JP2000023423A JP2000023423A JP2001218189A JP 2001218189 A JP2001218189 A JP 2001218189A JP 2000023423 A JP2000023423 A JP 2000023423A JP 2000023423 A JP2000023423 A JP 2000023423A JP 2001218189 A JP2001218189 A JP 2001218189A
- Authority
- JP
- Japan
- Prior art keywords
- illuminance
- image
- surveillance camera
- detected
- camera system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Burglar Alarm Systems (AREA)
- Alarm Systems (AREA)
- Closed-Circuit Television Systems (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】店舗、及び会社等の人の出入
りが激しい場所に監視カメラを設置して、不審者の行動
を監視、及び録画する監視カメラに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surveillance camera for monitoring a suspicious person's behavior and recording the surveillance camera by installing a surveillance camera in places where people enter and exit, such as stores and companies.
【0002】[0002]
【従来の技術】従来から、監視場所である店舗内や出入
口に監視カメラを設置し、この監視カメラから送信され
た画像を監視センターにてモニター表示したり、この画
像を録画して事後的な証拠とする監視カメラシステムが
知られている。2. Description of the Related Art Conventionally, a surveillance camera has been installed in a store or an entrance, which is a surveillance place, and an image transmitted from the surveillance camera is displayed on a monitor at a surveillance center, or this image is recorded for ex-post monitoring. Surveillance camera systems as evidence are known.
【0003】[0003]
【発明が解決しようとする課題】しかしながら、上述し
た従来の監視カメラシステムでは、例えば、不正行為者
が、監視カメラにスプレーを吹き付けたり、カバーを被
せて撮像できないようにしたのち、犯行に及ぶことがあ
る。また、照明を消灯して監視領域を暗くしたのち、犯
行に及ぶこともある。監視員がモニターを常時監視して
いれば、このような不正行為に気づくことができるが、
監視カメラの画像の録画のみを行っている場合には、犯
罪行為の画像を録画することができないという問題点が
あった。本発明は、上述した問題点に鑑みてなされ、監
視カメラの視野が妨害された場合にこれを検出して、警
報を出力することができる監視カメラシステムを提供す
ることを目的とする。However, in the above-mentioned conventional surveillance camera system, for example, after a fraudster sprays a surveillance camera or puts a cover on the surveillance camera to make it impossible to take an image, a crime is committed. There is. In addition, after turning off the lighting to darken the monitoring area, a crime may be committed. If observers are constantly monitoring the monitors, they can notice such misconduct,
When only the image of the surveillance camera is recorded, there is a problem that the image of the criminal act cannot be recorded. The present invention has been made in view of the above-described problems, and has as its object to provide a surveillance camera system that can detect when a field of view of a surveillance camera is obstructed and output an alarm.
【0004】[0004]
【課題を解決するための手段】上述した問題点を解決
し、上述した目的を達成するために、本発明の監視カメ
ラシステムは、監視領域を撮像する撮像手段と、撮像手
段の視野が妨害されたか否かを検出する妨害検出手段
と、妨害検出手段の検出結果に基づいて、警報を出力す
る警報手段とを有する監視カメラシステムにおいて、妨
害検出手段は、監視領域の照度を検出する照度センサー
を備え、撮像手段にて撮像した画像の輝度値が所定範囲
外でかつ照度センサーにて検出した照度が所定値以上の
場合に妨害行為として検出する。SUMMARY OF THE INVENTION In order to solve the above-mentioned problems and achieve the above-mentioned object, a surveillance camera system according to the present invention comprises an image pickup means for picking up an image of a surveillance area and a field of view of the image pickup means. In a surveillance camera system having an interference detecting means for detecting whether or not the alarm is detected and an alarm means for outputting an alarm based on the detection result of the interference detecting means, the interference detecting means includes an illuminance sensor for detecting an illuminance of a monitoring area. When the luminance value of the image picked up by the image pickup means is out of the predetermined range and the illuminance detected by the illuminance sensor is equal to or more than the predetermined value, it is detected as a sabotage.
【0005】[0005]
【発明の実施の形態】本発明による監視カメラシステム
の実施例を図1乃至図5を参照して説明する。図1は、
本実施例による監視カメラシステムの構成図である。1
A〜1Dは監視領域を撮像する監視カメラである。2
は、コントローラで監視カメラ1A〜1Dと同軸ケーブ
ル5で接続され、監視カメラ1A〜1Dから送出される
画像及び音声信号を受信して処理を行う。3は、タイム
ラプスビデオで、コントローラ2と同軸ケーブル6で接
続され、コントローラ2から送信された画像及び音声信
号を受信して録画及び録音する。4は、警報装置で、監
視カメラ1への不正行為等を監視し、異常が発生した場
合に遠隔の図示しない警備センターに警報を送出する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a surveillance camera system according to the present invention will be described with reference to FIGS. FIG.
FIG. 1 is a configuration diagram of a surveillance camera system according to the present embodiment. 1
Reference numerals A to 1D denote surveillance cameras for imaging a surveillance area. 2
Is connected to the monitoring cameras 1A to 1D via a coaxial cable 5 by a controller, and receives and processes images and audio signals transmitted from the monitoring cameras 1A to 1D. Reference numeral 3 denotes a time lapse video, which is connected to the controller 2 via a coaxial cable 6, receives an image and an audio signal transmitted from the controller 2, and performs recording and recording. Reference numeral 4 denotes an alarm device that monitors improper actions on the surveillance camera 1 and sends an alarm to a remote security center (not shown) when an abnormality occurs.
【0006】図2は、監視カメラ1の機能ブロック図で
ある。10はレンズやCCD等から構成される撮像部
で、監視領域内の画像を撮像して所定の画像信号に変換
する。11は集音部であり、マイクロホンにて構成さ
れ、監視領域内の音声を集音して所定の音声信号に変換
する。12は信号送出部で、撮像部10及び集音部11
からの画像信号及び音声信号を所定の出力信号に変換し
て同軸ケーブル5を介して、コントローラ2に送出す
る。13は、妨害検知部であり、撮像部で撮像した画像
の輝度値を検知する。131は、監視領域の照度を検出
する照度センサーである。FIG. 2 is a functional block diagram of the monitoring camera 1. An imaging unit 10 includes a lens, a CCD, and the like, and captures an image in the monitoring area and converts the captured image into a predetermined image signal. Reference numeral 11 denotes a sound collecting unit which is constituted by a microphone and collects sound in the monitoring area and converts the sound into a predetermined sound signal. Reference numeral 12 denotes a signal transmission unit, and the imaging unit 10 and the sound collection unit 11
Is converted into a predetermined output signal and transmitted to the controller 2 via the coaxial cable 5. Reference numeral 13 denotes a disturbance detection unit that detects a luminance value of an image captured by the imaging unit. Reference numeral 131 denotes an illuminance sensor that detects illuminance in the monitoring area.
【0007】図3はコントローラ2の機能ブロック図で
ある。20は画像処理部で、同軸ケーブル5A〜5Dを
介して監視カメラ1A〜1Dから受信した画像信号を処
理して、4分割の1画像として合成する。また、画像信
号が正常に受信しているか否かを検知する。21は画像
出力部で、画像処理部20で合成した4分割画像をタイ
ムラプスビデオ3に同軸ケーブル6を介して送出する。
22はC操作部で、スイッチ等で構成され、操作者がコ
ントローラ2の各種の設定操作を行う。23はCPU等
で構成されるC制御部で、各部と接続されて動作制御を
行う。24は例えばRS232Cで構成されるI/F部
で、後述するC認証部25からの信号を中継する。25
は例えばカードリーダから構成されるC認証部で、コン
トローラ2を操作する操作者の資格をチェックする。2
6はC電源部で、コントローラ2の各部に電源供給を行
う。27はC電源断検知部で、C電源部26の電源が切
断された場合にこれを検知して図示しないリレー接点を
切り替える。28はC警報出力部で、例えば、画像処理
部20にて監視カメラ1A〜1Dからの画像信号が途絶
えた場合に、警報装置4へ警報信号を出力する。FIG. 3 is a functional block diagram of the controller 2. Reference numeral 20 denotes an image processing unit which processes image signals received from the monitoring cameras 1A to 1D via the coaxial cables 5A to 5D and synthesizes them as one image divided into four. Further, it detects whether or not the image signal is normally received. Reference numeral 21 denotes an image output unit which sends out the quartered image synthesized by the image processing unit 20 to the time lapse video 3 via the coaxial cable 6.
Reference numeral 22 denotes a C operation unit which includes switches and the like, and allows an operator to perform various setting operations of the controller 2. Reference numeral 23 denotes a C control unit including a CPU and the like, which is connected to each unit and controls operation. Reference numeral 24 denotes an I / F unit configured by, for example, RS232C, which relays a signal from a C authentication unit 25 described later. 25
Is a C authentication unit composed of, for example, a card reader, and checks the qualification of an operator who operates the controller 2. 2
Reference numeral 6 denotes a C power supply unit that supplies power to each unit of the controller 2. Reference numeral 27 denotes a C power supply disconnection detecting unit which detects when the power supply of the C power supply unit 26 is disconnected and switches a relay contact (not shown). Reference numeral 28 denotes a C alarm output unit that outputs an alarm signal to the alarm device 4 when the image signal from the monitoring cameras 1A to 1D is interrupted by the image processing unit 20, for example.
【0008】図4は、タイムラプスビデオ3の機能ブロ
ック図である。31は録画部で、コントローラ2から受
信した4分割の画像信号を受信してビデオテープに録画
する。32はT操作部で、録画の開始や停止、タイマー
操作、ビデオテープの出し入れ等の操作を行う。33は
CPU等で構成されるT制御部で各部と接続されて動作
制御を行う。34は例えばRS232Cで構成されるI
/F部で、後述するT認証部35からの信号を中継す
る。35は例えばカードリーダから構成されるT認証部
で、タイムラプスビデオ3を操作する操作者の資格をチ
ェックする。36はT電源部で、タイムラプスビデオ3
の各部に電源供給を行う。37はT電源断検知部で、T
電源部36の電源が切断された場合にこれを検知して図
示しないリレー接点を切り替える。38はT警報出力部
で、例えば、録画部31へのコントローラ2からの画像
信号が途絶えた場合に、警報装置4へ警報信号を出力す
る。FIG. 4 is a functional block diagram of the time lapse video 3. A recording unit 31 receives the four-divided image signal received from the controller 2 and records it on a video tape. Reference numeral 32 denotes a T operation unit for performing operations such as starting and stopping recording, timer operation, and insertion / removal of a video tape. Reference numeral 33 denotes a T control unit composed of a CPU and the like, which is connected to each unit to perform operation control. Reference numeral 34 denotes an I composed of, for example, RS232C.
The / F section relays a signal from a T authentication section 35 described later. Numeral 35 denotes a T authentication unit composed of, for example, a card reader, which checks the qualification of the operator who operates the time lapse video 3. Reference numeral 36 denotes a T power supply unit, and a time lapse video 3
Power is supplied to each section. Reference numeral 37 denotes a T power cutoff detecting unit.
When the power of the power supply unit 36 is cut off, this is detected and a relay contact (not shown) is switched. Reference numeral 38 denotes a T alarm output unit, which outputs an alarm signal to the alarm device 4 when the image signal from the controller 2 to the recording unit 31 is interrupted, for example.
【0009】次に、本発明による監視カメラシステムに
おける監視カメラ1への視野妨害行為を検知して警報を
出力する動作について図5を参照して説明する。まず、
監視カメラシステムの各部の電源をオンにする。 監視
カメラ1A〜1Dはそれぞれ監視領域の画像を撮像部1
0で撮像し、画像信号を妨害検知部13を介して信号送
出部12に出力する。妨害検知部13では、ステップS
1で撮像10からの画像を取り込む。ステップS2で得
られた画像の画素毎に輝度値(輝度の階調で256段
階)を算出する。ステップS3で、予め定めた所定の輝
度値以下の画素数を計算する。ステップS4で算出した
画素数を予め定めた画素数mと比較する。そして、算出
した画素数がmより小さいときには、ステップS1に戻
り、大きいときにはステップS5に進む。ステップS5
では、照度センサ131で検出した照度が所定値以上か
否かを判定する。この所定値は、例えば、夜間や窓のな
い部屋で照明が消された場合の照度とする。ここで、照
度が所定値以下の場合には、画像の輝度が所定以下とな
ったのは夜間や照明が消されて、監視領域全体が暗くな
ったものとして、視野妨害異常とはせずにステップS1
に戻る。照度センサーの所定値以上の場合には、監視領
域が明るいにも拘わらず撮像した画像の輝度値が低下し
た場合であるから、監視カメラ等への視野妨害行為があ
ったものと判断してステップS6に進み信号送出部12
に異常信号を送信する。Next, an operation of detecting an obstruction of visual field to the surveillance camera 1 and outputting an alarm in the surveillance camera system according to the present invention will be described with reference to FIG. First,
Turn on the power of each part of the surveillance camera system. Each of the monitoring cameras 1A to 1D captures an image of a monitoring area
0, and outputs an image signal to the signal transmission unit 12 via the interference detection unit 13. In the interference detection unit 13, step S
In step 1, an image from the image pickup 10 is captured. A luminance value (256 gradations of luminance) is calculated for each pixel of the image obtained in step S2. In step S3, the number of pixels having a predetermined brightness value or less is calculated. The number of pixels calculated in step S4 is compared with a predetermined number m of pixels. When the calculated number of pixels is smaller than m, the process returns to step S1, and when it is larger, the process proceeds to step S5. Step S5
Then, it is determined whether the illuminance detected by the illuminance sensor 131 is equal to or more than a predetermined value. This predetermined value is, for example, the illuminance when the lighting is turned off at night or in a room without a window. Here, when the illuminance is equal to or less than the predetermined value, the reason why the brightness of the image is equal to or less than the predetermined value is that nighttime or the lighting is turned off and the entire monitoring area is darkened without causing a visual field disturbance abnormality. Step S1
Return to If the illuminance sensor is equal to or more than the predetermined value, it means that the luminance value of the captured image has decreased despite the bright monitoring area, and it is determined that there has been a visual field obstruction act on the monitoring camera or the like. Proceeding to S6, the signal sending unit 12
Send an abnormal signal to
【0010】また、図5のステップS3にて、予め所定
範囲の輝度値である画素数を算出し、ステップS4に
て、予め定めた画素数の範囲mと比較し、mより小さい
ときには、ステップS1に戻り、大きいときにはステッ
プS5に進むようにしてもよい(請求項3に対応)。こ
の場合は、前述のカメラレンズを塞ぐことによるカメラ
への視野妨害行為以外の検出も行うことができる。それ
は、サーチライト等により、撮像部10のダイナミック
レンジを超える光をカメラレンズに照らし、輝度の飽和
を起こさせた場合である。所定以上の輝度値についても
判定を行えば、この光によるカメラへの視野妨害行為を
検出できる。なお、本実施例では、得られた画像の画素
毎に輝度値を算出したが、所定の画素で構成する画素ブ
ロックで、輝度値を算出するようにしてもよい。この場
合には、所定の画素の輝度値を加算して、所定の画素数
で除算した値を画素ブロックの輝度値とすればよい。ま
た、照度センサー131は監視カメラには設置せずに、
監視領域内の離れた場所に設置して、信号のみを監視カ
メラの妨害検知部13に送信して入力するようにしても
よい。これにより、監視カメラ全体が覆われて場合にお
いても妨害検知が可能となる。図6は、監視カメラ1を
監視領域に設置した場合の外観イメージ図である。監視
カメラ1にて、電灯に照らされている人を撮像している
様子を示す。妨害検知部13で視野妨害が検知されると
信号送出部12にて所定の警報信号に変換して同軸ケー
ブル5A〜5Dにて送出する。In step S3 of FIG. 5, the number of pixels, which is a predetermined range of luminance values, is calculated in advance. In step S4, the number of pixels is compared with a predetermined range m of pixels. Returning to S1, if it is larger, the process may proceed to step S5 (corresponding to claim 3). In this case, detection other than the above-described obstruction of the view of the camera by closing the camera lens can be performed. That is the case where light exceeding the dynamic range of the imaging unit 10 is illuminated on the camera lens by a searchlight or the like, causing saturation of luminance. If a determination is made for a luminance value equal to or greater than a predetermined value, it is possible to detect an action of obstructing the view of the camera due to the light. In the present embodiment, the brightness value is calculated for each pixel of the obtained image. However, the brightness value may be calculated in a pixel block including predetermined pixels. In this case, the brightness value of the pixel block may be obtained by adding the brightness values of the predetermined pixels and dividing by a predetermined number of pixels. Also, the illuminance sensor 131 is not installed on the monitoring camera,
It may be installed at a remote place in the monitoring area, and only the signal may be transmitted to the interference detection unit 13 of the monitoring camera and input. Thus, even when the entire surveillance camera is covered, it is possible to detect interference. FIG. 6 is an external appearance image diagram when the monitoring camera 1 is installed in a monitoring area. 2 shows a situation where the monitoring camera 1 is capturing an image of a person illuminated by an electric light. When the obstruction detection unit 13 detects the obstruction of the visual field, the signal transmission unit 12 converts it into a predetermined alarm signal and transmits the signal through the coaxial cables 5A to 5D.
【0011】上記の妨害検出の動作とは別に照度センサ
ー131により所定値以下の照度を検出した場合には、
信号送出部12から照度低下警報を送出する。この照度
低下警報の信号と前述の妨害検知による異常信号とを区
別して送信することにより、後述する遠隔の警備センタ
において状況が把握しやすくなる。撮像部10にて撮像
されて、妨害検知部13を介して信号送出部12に出力
された監視領域の画像は、例えば、NTSC方式の画像
信号に変換されて同軸ケーブル5A〜5Dを介して、コ
ントローラ2に送出される。コントローラ2の画像処理
部20は、受信した監視カメラ1A〜1Dの4つの画像
を4分割の1画像として作成し、画像出力部21にてタ
イムラプスビデオ3に出力する。画像処理部20ではま
た同軸ケーブル5A〜5Dを介して監視カメラ1A〜1
Dの妨害検知信号及び照度低下信号を受信する。そし
て、妨害検知信号及び照度低下信号を受信した場合に
は、C制御部23はC警報出力部28にて警報装置4に
警報信号を出力する。警報装置4では、コントローラ2
からの警報出力を受信すると、遠隔の図示しない警備セ
ンターに電話回線等を通じて警報を送信する。When the illuminance sensor 131 detects an illuminance equal to or less than a predetermined value separately from the above-described interference detection operation,
An illuminance reduction warning is transmitted from the signal transmission unit 12. By separately transmitting the signal of the low illuminance warning and the abnormal signal due to the above-described interference detection, the situation can be easily grasped at a remote security center described later. The image of the monitoring area captured by the imaging unit 10 and output to the signal transmission unit 12 via the interference detection unit 13 is converted into, for example, an NTSC image signal and transmitted through the coaxial cables 5A to 5D. It is sent to the controller 2. The image processing unit 20 of the controller 2 creates the received four images of the surveillance cameras 1A to 1D as one image divided into four, and outputs the four images to the time lapse video 3 at the image output unit 21. The image processing unit 20 also monitors cameras 1A to 1A via coaxial cables 5A to 5D.
D. The interference detection signal and the illuminance reduction signal of D are received. Then, when receiving the interference detection signal and the illuminance reduction signal, the C control unit 23 outputs an alarm signal to the alarm device 4 at the C alarm output unit 28. In the alarm device 4, the controller 2
When an alarm output is received, the alarm is transmitted to a remote security center (not shown) through a telephone line or the like.
【0012】以上のように、本実施例の監視カメラシス
テムでは、監視カメラ1の撮像部10への妨害行為を検
知して警報を出力することができるので、このような不
正行為に対して迅速に対処することができる。As described above, the surveillance camera system according to the present embodiment can detect an obstructive action on the imaging unit 10 of the surveillance camera 1 and output an alarm. Can be dealt with.
【図1】監視カメラシステムの構成図FIG. 1 is a configuration diagram of a surveillance camera system
【図2】監視カメラの機能ブロック図FIG. 2 is a functional block diagram of a surveillance camera.
【図3】コントローラの機能ブロック図FIG. 3 is a functional block diagram of a controller.
【図4】タイムラプスビデオの機能ブロック図FIG. 4 is a functional block diagram of a time-lapse video.
【図5】視野妨害行為の検出フローチャートFIG. 5 is a flowchart for detecting a visual field obstruction act.
【図6】監視カメラ設置時の外観イメージ図FIG. 6 is an external appearance image diagram when a surveillance camera is installed.
【符号の説明】 1…監視カメラ 13…妨害検知部 131…照度センサー 2…コントローラ 3…タイムラプスビデオ 4…警報装置 5、6…同軸ケーブル[Description of Signs] 1 ... Monitoring camera 13 ... Disturbance detector 131 ... Illuminance sensor 2 ... Controller 3 ... Time lapse video 4 ... Alarm device 5, 6 ... Coaxial cable
フロントページの続き Fターム(参考) 5C054 FC05 FC12 FC15 FF06 HA18 5C084 AA02 AA08 AA13 BB40 CC22 DD12 DD65 EE04 FF04 GG01 GG12 GG43 GG44 GG52 GG56 GG57 GG68 GG78 5C087 AA09 AA22 AA37 BB10 BB12 BB74 CC52 DD05 DD23 EE07 FF01 FF04 FF08 FF20 FF23 GG02 GG21 GG23 GG30 GG56 GG70 Continued on the front page F-term (reference) GG02 GG21 GG23 GG30 GG56 GG70
Claims (4)
手段の視野が妨害されたか否かを検出する妨害検出手段
と、前記妨害検出手段の検出結果に基づいて、警報を出
力する警報手段とを有する監視カメラシステムにおい
て、前記妨害検出手段は、監視領域の照度を検出する照
度センサーを備え、前記撮像手段にて撮像した画像の輝
度値が所定値以下になった場合でかつ前記照度センサー
にて検出した照度が所定値以上の場合に妨害行為として
検出することを特徴とした監視カメラシステム。1. An image pickup means for picking up an image of a monitoring area, an interference detection means for detecting whether or not the visual field of the image pickup means is disturbed, and an alarm means for outputting an alarm based on a detection result of the interference detection means. In the surveillance camera system having the above, the obstruction detection means includes an illuminance sensor for detecting illuminance of a monitoring area, and when a luminance value of an image captured by the imaging means has become a predetermined value or less, and the illuminance sensor A surveillance camera system characterized in that when the illuminance detected by (1) is equal to or more than a predetermined value, it is detected as a sabotage action.
手段の視野が妨害されたか否かを検出する妨害検出手段
と、前記妨害検出手段検出結果に基づいて、警報を出力
する警報手段とを有する監視カメラシステムにおいて、
前記妨害検出手段は、監視領域の照度を検出する照度セ
ンサーを備え、前記撮像手段にて撮像した画像におい
て、所定の輝度値以下の画像領域が所定以上となった場
合でかつ前記照度センサーにて検出した照度が所定値以
上の場合に妨害行為として検出することを特徴とした監
視カメラシステム。2. An image pickup means for picking up an image of a monitoring area, an interference detection means for detecting whether or not the visual field of the image pickup means is disturbed, and an alarm means for outputting an alarm based on the detection result of the interference detection means. In a surveillance camera system having
The interference detection unit includes an illuminance sensor that detects illuminance of a monitoring area, and in an image captured by the imaging unit, when an image area having a predetermined luminance value or less is equal to or more than a predetermined value, and the illuminance sensor uses A surveillance camera system characterized in that when the detected illuminance is equal to or greater than a predetermined value, it is detected as a sabotage action.
所定範囲外でかつ前記照度センサーにて検出した照度が
所定値以上の場合に妨害行為として検出することを特徴
とした請求項1記載の監視カメラシステム。3. The method according to claim 1, wherein when the luminance value of the image picked up by said image pickup means is out of a predetermined range and the illuminance detected by said illuminance sensor is equal to or more than a predetermined value, it is detected as an obstructive action. The surveillance camera system as described.
値以下の場合に前記警報手段が照度低下情報を出力する
ことを特徴する請求項1乃至2記載の監視カメラシステ
ム。4. The surveillance camera system according to claim 1, wherein said alarm means outputs illuminance reduction information when the illuminance detected by said illuminance sensor is equal to or less than a predetermined value.
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JP2000023423A JP4260325B2 (en) | 2000-01-31 | 2000-01-31 | Surveillance camera system |
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JP4260325B2 JP4260325B2 (en) | 2009-04-30 |
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Cited By (10)
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JP2003111064A (en) * | 2001-09-28 | 2003-04-11 | Secom Co Ltd | Monitoring camera system |
KR100658403B1 (en) * | 2004-12-20 | 2006-12-19 | (주)씨티전자 | The lighting control system using cctv camera |
JP2007157005A (en) * | 2005-12-07 | 2007-06-21 | Matsushita Electric Ind Co Ltd | Object action detection/report system, center device, controller device, object action detection/report method, and object action detection/report program |
JP2010200190A (en) * | 2009-02-27 | 2010-09-09 | Hitachi Ltd | Video monitoring system |
JP2011211557A (en) * | 2010-03-30 | 2011-10-20 | Secom Co Ltd | Monitoring camera |
JP2011211558A (en) * | 2010-03-30 | 2011-10-20 | Secom Co Ltd | Monitoring camera |
JP2012048382A (en) * | 2010-08-25 | 2012-03-08 | Secom Co Ltd | Complex sensor |
JP2016063362A (en) * | 2014-09-17 | 2016-04-25 | アイホン株式会社 | Intercom device |
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2000
- 2000-01-31 JP JP2000023423A patent/JP4260325B2/en not_active Expired - Lifetime
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
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JP4578743B2 (en) * | 2001-09-28 | 2010-11-10 | セコム株式会社 | Surveillance camera device |
JP2003111064A (en) * | 2001-09-28 | 2003-04-11 | Secom Co Ltd | Monitoring camera system |
KR100658403B1 (en) * | 2004-12-20 | 2006-12-19 | (주)씨티전자 | The lighting control system using cctv camera |
JP2007157005A (en) * | 2005-12-07 | 2007-06-21 | Matsushita Electric Ind Co Ltd | Object action detection/report system, center device, controller device, object action detection/report method, and object action detection/report program |
US8842178B2 (en) * | 2009-02-27 | 2014-09-23 | Hitachi, Ltd. | Supervising system for image |
US20110205360A1 (en) * | 2009-02-27 | 2011-08-25 | Takashi Saeki | Supervising system for image |
JP2010200190A (en) * | 2009-02-27 | 2010-09-09 | Hitachi Ltd | Video monitoring system |
JP2011211557A (en) * | 2010-03-30 | 2011-10-20 | Secom Co Ltd | Monitoring camera |
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JP2012048382A (en) * | 2010-08-25 | 2012-03-08 | Secom Co Ltd | Complex sensor |
JP2016063362A (en) * | 2014-09-17 | 2016-04-25 | アイホン株式会社 | Intercom device |
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CN114830620A (en) * | 2019-12-20 | 2022-07-29 | 霍尼韦尔国际公司 | Tamper detection on camera |
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