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1. 发明专利

DE4222920A1 未知
公开(公告)号：DE4222920A1
公开(公告)日：1993-01-14
申请号：DE4222920
申请日：1992-07-11
申请人： HOCHIKI CO , ISHII HIROMITSU
发明人： ISHII HIROMITSU , ONO TAKASHI , WATANABE KIYOSHI
IPC分类号： G06K9/00 , G08B13/196 , G08B17/12
摘要： By using the ratio of the G component to the R component G/R, or the ratio of the B component to the R component B/R, from a television monitor image, and referring to a conversion table for converting to distribution temperature, a surface temperature of a flame is found for each pixel. An area in which luminance signals included in an image of a surveillance area exceed a prescribed level is sampled as a flame outline, and at least the distribution temperature of a sampled flame region is detected, and distance to a radiant energy source is measured. The amount of radiant energy from the radiant energy source is estimated by computation, based on the sampled flame area and its distribution temperature and the distance to the source of radiant energy. The system is provided with a fire image recognition section for recognizing a fire from radiant energy itself and from change in radiant energy over time and outputting fire detection information and an intruder entity recognition section which, from monitor images from the same camera, recognizes an intruder entity and outputs burglary detection information. Processing modes are provided enabling fire and/or intruder entity image processing to be selected. If abnormality detection information is received using fire image or intruder entity recognition processing, a pre-alarm is outputted in the central monitor room, and also the monitor image in the central monitor room is switched to the image of the location where the abnormality has been detected.

2. 发明专利

GB2257598B Surveillance monitor system using image processing 未知
公开(公告)号：GB2257598B
公开(公告)日：1994-11-30
申请号：GB9214656
申请日：1992-07-10
申请人： HOCHIKI CO , ISHII HIROMITSU
发明人： ISHII HIROMITSU , ONO TAKASHI , WATANABE KIYOSHI
IPC分类号： G06K9/00 , G08B13/196 , G08B17/12 , G08B19/00 , H04N7/18
摘要： By using the ratio of the G component to the R component G/R, or the ratio of the B component to the R component B/R, from a television monitor image, and referring to a conversion table for converting to distribution temperature, a surface temperature of a flame is found for each pixel. An area in which luminance signals included in an image of a surveillance area exceed a prescribed level is sampled as a flame outline, and at least the distribution temperature of a sampled flame region is detected, and distance to a radiant energy source is measured. The amount of radiant energy from the radiant energy source is estimated by computation, based on the sampled flame area and its distribution temperature and the distance to the source of radiant energy. The system is provided with a fire image recognition section for recognizing a fire from radiant energy itself and from change in radiant energy over time and outputting fire detection information and an intruder entity recognition section which, from monitor images from the same camera, recognizes an intruder entity and outputs burglary detection information. Processing modes are provided enabling fire and/or intruder entity image processing to be selected. If abnormality detection information is received using fire image or intruder entity recognition processing, a pre-alarm is outputted in the central monitor room, and also the monitor image in the central monitor room is switched to the image of the location where the abnormality has been detected.

3. 发明专利

GB2257598A VIDEO CAMERA SURVEILLANCE SYSTEM DETECTS INTRUDERS AND/OR FIRE 未知
公开(公告)号：GB2257598A
公开(公告)日：1993-01-13
申请号：GB9214656
申请日：1992-07-10
申请人： HOCHIKI CO , ISHII HIROMITSU
发明人： ISHII HIROMITSU , ONO TAKASHI , WATANABE KIYOSHI
IPC分类号： G06K9/00 , G08B13/196 , G08B17/12
摘要： A plurality of colour video cameras 10 provides video signals which are switched 18, under the control of computer 32 to signal processor 100 having a frame memory 22 and means for recognizing the presence of an intruder 28 or a fire 26 respectively; mode switch allows for the stored video signals to be subject to either fire or intruder detection or both. If an abnormality is detected in the output of one video camera, the video signal of that camera is routed to monitor 42 for display. Fire is detected (fig 2) by comparing the radiant energy, calculated from the temperature (ratio G:R or B:R), the flame outline (using a luminance threshold) and flame distance (using the output of the camera autofocus), with a threshold and observing changes with time in it.

4. 发明专利

JPH0518828A DEVICE FOR MEASURING CALORIFIC VALUE OF FLAME USING IMAGE PROCESSING 失效
公开(公告)号：JPH0518828A
公开(公告)日：1993-01-26
申请号：JP17206491
申请日：1991-07-12
申请人： HOCHIKI CO , ISHII HIROMITSU
发明人： ISHII HIROMITSU , ONO TAKASHI , WATANABE KIYOSHI
IPC分类号： G01J1/02 , G01J5/48 , G01J5/60 , G01N25/22 , G08B17/12 , H04N7/18
摘要： PURPOSE:To enable a calorifit value of flame to be directly calculated and inferred by processing a color image of flame for a device which detects the calorifit value of flame using image processing which is used for judging fire, etc., by calculating the calorifit value by processing the color image of flame. CONSTITUTION:A range where a brightness signal which is contained in a color image of a flame 14 exceeds a specified level is detected as a flame region, at least a ratio (G/R) of G constituent to R constituent of the color image is calculated 22 and then is converted to a distribution temperature 24. A calorifit value E is calculated 32 based on a distribution temperature T which is obtained for each picture element which is contained in the flame region and a flame area S per picture element is calculated 32, thus obtaining its total as the calorifit value of flame.

5. 发明专利

JPH0520564A FIRE DETECTOR USING IMAGE PROCESSING 失效
公开(公告)号：JPH0520564A
公开(公告)日：1993-01-29
申请号：JP17206291
申请日：1991-07-12
申请人： HOCHIKI CO , ISHII HIROMITSU
发明人： ISHII HIROMITSU , ONO TAKASHI , WATANABE KIYOSHI
IPC分类号： G08B17/12 , H04N7/18
摘要： PURPOSE:To correctly perform the judgment whether or not fire is obtained by assuming the radial energy from an abnormal point in the monitoring image, concerning a fire detector using the image to assume the radial energy from the image information of a fire source and judge the fire. CONSTITUTION:A comparing arithmetic part 22, a temperature converting part 24 and a fire outline extracting part 28 extract the range where a luminance signal included in the image of the monitoring area of a CCD color camera 10 exceeds the prescribed level, as the outline of fire 14, detect the distribution temperature of the at least extracted fire area, further, measures the distance up to the fire source, assume and operate the radial energy from the fire source based on the distance up to the extracted fire area, the temperature distribution and further, the fire source and judge 34 the fire from the radial energy itself and the hourly change. As one example of the fire detection, by ratio G/R of the G component and the R component of the image-picked up color image or ratio B/R of the B component the R component, the converting table to the distribution temperature is referred to and the surface temperature of the fire is obtained for each picture element.

6. 发明专利

JPH0520563A SMOKE DETECTOR USING IMAGE PROCESSING 失效
公开(公告)号：JPH0520563A
公开(公告)日：1993-01-29
申请号：JP17570091
申请日：1991-07-17
申请人： HOCHIKI CO , ISHII HIROMITSU
发明人： ISHII HIROMITSU , ONO TAKASHI , WATANABE KIYOSHI
IPC分类号： G01N21/17 , G08B17/10 , G08B17/103 , H04N7/18
摘要： PURPOSE:To perform the fire judgment to make compatible the early discovery and the erroneous information prevention of the fire by grasping the smoking quantity by processing the image of the monitoring area of the smoke photographed by a high sensitivity camera. CONSTITUTION:A light emitting device 14 to synchronize the photographing action of a camera device 10 and to be provided at the facing position is light- emitted and driven, the photographed image signal is converted to a multi- gradation picture element signal, stored into frame memories 20A and 20B, the smoking area is detected from the multi-gradation picture element signal of one screen stored in the frame memories 20A and 20B, and by operating and integrating the smoke concentration for each picture element based on the multi-gradation picture element signal in the smoking area, the smoking quantity is calculated, and the fire is judged from the smoking quantity. From the change quantity of the previous smoking quantity and the present smoking quantity, the fire may be judged.

7. 发明专利

JPH0520560A FIRE POINT DETECTING DEVICE 失效
公开(公告)号：JPH0520560A
公开(公告)日：1993-01-29
申请号：JP17498991
申请日：1991-07-16
申请人： HOCHIKI CO , ISHII HIROMITSU
发明人： ISHII HIROMITSU , ONO TAKASHI , WATANABE KIYOSHI
IPC分类号： G08B17/00 , G06T1/00 , G08B23/00 , G08B25/00 , H04N7/18
摘要： PURPOSE:To correctly perform the distance measurement, etc., by specifying the same fire point which can be seen from two television cameras even at the time of the fire source caught as a surface on a screen while this is the device to detect the fire point (one point in the fire source) in a warning area by using the image of the fire image-picked up with two color television cameras. CONSTITUTION:R, G and B components of an image image-picked up by two color television cameras 10a and 10b at the time of fire occurrence are extracted and stored 46 and 48, and further, the ratio of two components of the R, G and B components is calculated 52. Continuously, with each picture element of two images as an attention picture element, a matrix is applied 54 in the sequence, the sum of the square error of the picture element included in the matrix applied for two images is calculated 56 as a parameter to show similarity, the matrix having the minimum value in the sum of the square error obtained concerning the whole combination of the matrix applied for two images is selected 58 as the strongest similarity and based on the position of the central picture element of two selected matrixes and the scanning angle of a television camera, the fire point is decided 60.

8. 发明专利

JP2000011280A DISASTER PREVENTION MONITORING SYSTEM 失效
公开(公告)号：JP2000011280A
公开(公告)日：2000-01-14
申请号：JP17090398
申请日：1998-06-18
申请人： HOCHIKI CO
发明人： WATANABE KIYOSHI
IPC分类号： G08B25/04 , G08B17/00 , G08B25/08 , H04L12/28 , H04Q9/00
摘要： PROBLEM TO BE SOLVED: To make it possible to provide a centralized management of disaster prevention facilities remote in place by effectively utilizing a homepage read function of an internet with ease and a low cost. SOLUTION: Remote operation panels 4a to 4b installed for every section of plural monitoring sections 1a to 1n of a building or the like are provided with a home page which opens to the public disaster prevention information collected by disaster monitoring panels 3a to 3n of disaster prevention facilities 2a to 2n by an access from an internet 5. Here, the disaster prevention information opened to the public on the homepage is read by a browser of a remote monitoring device 7 which has the right to access the homepage by way of the internet 5.

9. 发明专利

JPH11347144A HYDRANT DEVICE 失效
公开(公告)号：JPH11347144A
公开(公告)日：1999-12-21
申请号：JP15740798
申请日：1998-06-05
申请人： HOCHIKI CO
发明人： WATANABE KIYOSHI
IPC分类号： A62C33/04 , A62C35/20
摘要： PROBLEM TO BE SOLVED: To draw out a hose with light force at the time of fire extinguishment by a simple mechanism and structure. SOLUTION: This hydrant device is constituted by winding the hose with the nozzle around a reel and housing the hose in an upright state into a casing having a freely openable and closable door and is used to extinguish a fire by opening the door and drawing out the hose with the nozzle at the time of fire extinguishment. A pair of guide rails 27a, 27b and 27c, 17d are separably arranged across the center on the diameter on the flank of the hose reel 5 and a pair of weights 28a, 28b and 28c, 28d are freely movably mounted at the respective rails. A guide plate 30 is fixed and arranged to face the flank of the hose reel. Guide grooves 32 are formed to an approximately sectorial shape along the peripheral edge of the reel existing in the reel rotating direction from the center at the guide plate 30. As the hose reel 5 rotates, a pair of the weights 28a, 28b and 28c, 28d are circumferentially moved along the guide grooves 32 while the position varying by 180 deg. with the reel center is maintained, by which rotational moment is applied to the hose reel 5.

10. 发明专利

JP2000042128A FIRE EXTINGUISHING DEVICE 失效
公开(公告)号：JP2000042128A
公开(公告)日：2000-02-15
申请号：JP21669398
申请日：1998-07-31
申请人： HOCHIKI CO
发明人： WATANABE KIYOSHI
IPC分类号： A62C3/00 , A62C31/24 , A62C37/00
摘要： PROBLEM TO BE SOLVED: To extinguish a fire by making fire extinguishing water positively fall into a fire source position without being influenced by the wind. SOLUTION: A fire extinguishing device extinguishing a fire started in a monitor area, by discharge guns 5a and 5b is provided with fire source position detecting parts 2a and 2b for detecting a fire source position, and a discharge control part 1a for preparing a mathematical model taking account of the influence of outside air flow on discharge flow, estimating the actual influence of outside air flow on discharge flow at real time on the basis of the mathematical model and correcting the direction of the discharge guns 5a, 5b discharging fire extinguishing water into the fire source position.

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