JPH0896278A - Automatic detector for heat or the like and its using method - Google Patents

Abstract

PURPOSE: To previously prevent the generation of a fire or the like by displaying a temperature abnormality generating position on an object to be measured which is displayed on a monitor screen and detecting and informing an abnormal state which is not displayed as temperature abnormality on the monitor screen. CONSTITUTION: An object 1 to be measured is photographed by a CCD camera 3 and displayed on a monitor television(TV) 5 through a picture processor 4. An infrared-ray detection part 2 having thity-five infrared-ray sensors is arranged turning to the object 1 and a detection area of the detection part 2 is allowed to coincide with a photographing range of the camera 3 to set up an infrared-ray detecting area consisting of thirty-five blocks on the photographing range. When any one of the sensors detects temperature abnormality, the processor 4 displays a position (a block B16 e.g.) on the TV 5 which corresponds to the sensor on a monitor screen 5a and generates an alarm from a buzzer 31.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to automatic detection of heat (temperature abnormality), smoke generation, spark generation, etc. of an object to be measured, such as industrial equipment, which can be automatically notified. The present invention relates to a device and a method of using the device.

[0002]

2. Description of the Related Art Maintenance of industrial equipment has become a problem due to shortened working hours, restructuring, aging of skilled engineers, retirement, and so on. Therefore, the centralized monitoring method using the surveillance camera has been conventionally adopted, but the surveillance camera basically requires the supervisor to keep watching the monitor screen at all times. There was a problem that I overlooked it.

Therefore, in order to prevent a serious accident or the like from occurring by quickly detecting and responding to an abnormality in factory equipment, it is not necessary for an observer to constantly watch the monitor.
An unmanned surveillance camera capable of automatically detecting and notifying various abnormalities by the surveillance camera has been required.

Therefore, conventionally, a dangerous area or the like is photographed by a video camera, a sensor point is set on the screen of a monitor television showing the dangerous area, and an object enters the dangerous area and is projected on the TV screen. When the same object touches the sensor point, the unattended monitoring that can automatically detect and notify the abnormality of the object entering the dangerous area by detecting the change of the brightness signal on the sensor point. A camera has been proposed (actual fair 4-165)
No. 40, Japanese Patent Publication No. 4-27759, Japanese Patent Publication No. 6-1474
No. 4).

[0005]

By the way, in the above-mentioned conventional apparatus, an object (for example, a person, an animal, a vehicle, a crane, etc.) reflected on the TV screen can be detected, but it is reflected on the TV screen due to an abnormal temperature or the like. There is a drawback that it is impossible to detect a change in a situation that does not exist, and the scope of application is limited from the viewpoint of monitoring factory equipment. Moreover, since the conventional device has a small number of sensor points of about 3328, it is difficult to detect a very small object on the screen such as smoke and sparks caused by a fire or the like.

Thermography exists as a device for detecting an abnormal temperature, but such a device only measures the temperature and displays the temperature pattern on the monitor screen, and the device itself automatically detects the abnormal temperature. There is a function that does not have a function to do so, and there is a drawback in that a monitor person needs to judge whether or not the temperature is abnormal by looking at the temperature pattern. Also, the price of one set of thermography is very high,
As maintenance is also required once a year without failing to replace parts, etc., and high maintenance costs, it is not possible to install a large number of devices in various facilities at all times, and it is inevitable to carry around and monitor them, and the occurrence of abnormalities in a timely manner. It also has the drawback of being difficult to detect.

The present invention has been made in view of the drawbacks of the above-mentioned conventional apparatus.
It can automatically detect temperature abnormalities, smoke, sparks, etc. of the measurement object, and can automatically detect and alert the occurrence of temperature abnormalities in industrial equipment, etc. An object of the present invention is to provide an automatic detection device for heat or the like that can prevent a major accident or the like without disposing it.

Further, according to the present invention, the object to be measured is displayed on the monitor television by using the surveillance camera, and the infrared detection area of the infrared detection section is overlapped with the surveillance area of the surveillance camera, so that the entire photographing range of the surveillance camera is detected by the infrared detection area. To provide an automatic detection device for heat etc. that can be set as, and can display the location where the temperature abnormality of the measurement object occurs on the monitor TV and can easily confirm the location where the temperature abnormality occurs. The purpose is.

Further, according to the present invention, a plurality of sensor points can be set on the monitor TV, and the sensor point position corresponding to the location where the temperature abnormality of the measurement object occurs can be displayed on the monitor TV. It is an object of the present invention to provide an automatic detection device for heat and the like that can confirm the location of occurrence of temperature abnormality, etc. on the monitor screen at a glance.

Further, the present invention provides an automatic detection device for heat or the like capable of detecting a temperature abnormality in each divided block by dividing the surveillance area of the surveillance camera into a plurality of detection areas for each of a plurality of infrared detection elements. The purpose is to

Another object of the present invention is to provide a convex lens in front of the infrared detection element to provide an automatic detection device for heat or the like with good sensitivity.

The present invention is not limited to the above temperature abnormality,
An object of the present invention is to provide an automatic detection device for heat or the like that can simultaneously detect intrusion of an object into a surveillance area of a surveillance camera, smoke in a photographing range, generation of sparks, and the like.

Further, according to the present invention, a location where a temperature abnormality occurs
An object of the present invention is to provide an automatic detection device for heat, etc., which can display smoke, sparks, etc. on the same monitor TV.

The present invention also provides a monitor television with 133
An object of the present invention is to provide an automatic detection device for heat or the like capable of detecting an image with high accuracy that can detect even minute image changes such as smoke and sparks by setting 12 sensor points. .

Another object of the present invention is to provide an automatic detection device for heat and the like, which can detect not only abnormal temperature but also generation of smoke, sparks, etc. accompanying the occurrence of fire and the like and a method of using the same.

[0016]

In order to solve the above problems, the present invention firstly arranges a plurality of infrared detecting elements on the front surface and sets a plurality of detecting areas for each detecting element with respect to an object to be measured. Infrared detecting section, display means capable of displaying the array position of the infrared detecting elements, and an image for recognizing the position of the infrared detecting element detecting the temperature abnormality based on the output signal of the infrared detecting element The image processing apparatus includes a temperature abnormality detecting unit that detects a temperature abnormality based on the output signal, and a temperature abnormality detecting unit that detects a temperature abnormality among a plurality of infrared ray detecting elements based on the detection operation of the detecting unit. Display control means for displaying the position of the infrared detecting element on the display means, and alarm signal generating means for generating an alarm signal based on the detection operation of the detecting means. Automatic detection device and the like, the second, the first, characterized in that is provided with a warning means for performing warning to the effect that the temperature abnormality has occurred based on the alarm signal
The automatic detection device for heat etc. described in the third paragraph, and thirdly, the monitor camera is connected to the image processing device, and a monitor TV for displaying an image of a measurement object photographed by the monitor camera is provided as the display means. 3. The detection area of the infrared detection element is configured to be displayed on the monitor television screen by superimposing the detection area of the infrared detection section on the monitoring area of 1. A device for automatically detecting heat and the like. Fourth, a point setting means for setting a plurality of sensor points on the monitor screen in the image processing device based on a video signal from the surveillance camera, and an array of the infrared detection elements. A position recognition means for recognizing the array position of each of the infrared detection elements by associating the position with the sensor point position is provided, The arithmetic unit displays the sensor point position corresponding to the infrared detecting element, which has detected the temperature abnormality by the display control means, on the monitor television based on the temperature abnormality detection operation. Fifth, an automatic detection device for heat or the like, fifthly, the infrared detection elements are arranged in a grid pattern, and the display control means corresponds to the infrared detection elements that have detected the temperature abnormality based on the temperature abnormality detection operation. The automatic detection device for heat and the like according to the above-mentioned fourth, characterized in that it is configured so that the sensor points can be displayed in a block shape on the monitor screen. A first lens, a second lens, a second lens, a second lens, a second lens,
An automatic detection device for heat or the like according to 3, 4 or 5, and a seventh embodiment, wherein the Fresnel lens is provided in place of the convex lens, and the automatic detection device for heat or the like according to the sixth feature,
Eighthly, the image processing device compares image signals input from the surveillance camera at predetermined time intervals and detects an image change on the sensor point by the comparison operation, and an image detection device of the detection device. A marker display means capable of displaying a sensor point position where a change in the image is detected based on the detecting operation on the monitor screen, and an alarm signal is generated by the alarm signal generating means based on the detecting operation of the change in the image. The automatic detection device for heat etc. described in the above 3, 4, 5, 6 or 7, characterized in that it is generated, and ninth, the position of the infrared detection element which has detected the temperature abnormality and the change in the image. The automatic detection device for heat or the like according to the eighth aspect, characterized in that the detected position is displayed on the monitor television, and tenth, by the point setting means.
3312 sensor points are set on the monitor TV, and the fourth, fifth, sixth, seventh and eighth are provided.
Or, an automatic detection device for heat or the like according to 9, eleventh, of the image of the sensor point due to smoke or sparks which is photographed on the monitor TV by photographing the measuring object with the surveillance camera and based on a video signal from the camera. The eighth and ninth aspects characterized in that a change is detected by the image detection means, and the location of smoke or spark is displayed on the monitor television by the marker display means based on the detection operation of the detection means. Or the automatic detection device for heat or the like according to 10, twelfth, the monitoring camera photographs an object to be measured, and the image of the sensor point due to smoke or sparks is displayed on the monitor television based on a video signal from the camera. A change is detected by the image detecting means, and a marker display means displays the location of smoke or spark generation on the monitor TV based on the detection operation of the detecting means. Using automatic detection devices such as heat of the first 8, 9 or 10, wherein to is formed using,.

[0017]

[Action]

1st invention The infrared detection part is arrange | positioned toward a detection target, and the detection area for each infrared detection element is set on the said measurement target. Thereby, a plurality of detection areas corresponding to a plurality of infrared detecting elements can be set on the measurement object. The image processing device receives the output signal of each infrared detection element, when the temperature abnormality detection means detects a temperature abnormality based on the output signal, among the plurality of infrared detection elements,
The position of the infrared detecting element generating the output signal indicating that the temperature is abnormal is recognized, and the display control means displays the position of the infrared detecting element on the display means. Further, the alarm signal generating means generates an alarm signal indicating that the temperature abnormality has occurred, based on the above detection operation. As a result, it is possible to automatically detect and display the temperature abnormality occurrence point in the detection target,
Further, it is possible to notify that an abnormal temperature has occurred by issuing an alarm or the like based on the alarm signal.

Second invention The alarm means issues an alarm indicating that the temperature abnormality has occurred based on the alarm signal. Thereby, the occurrence of the temperature abnormality can be promptly notified.

Third Invention A surveillance camera is installed so as to face an object to be detected, and the object to be measured is displayed on a monitor TV. Further, by installing the detection area of the infrared detection section so as to overlap with the monitoring area of the surveillance camera, the infrared detection area of the detection section can also be displayed on the monitor television. As a result, the image of the measurement target can be displayed on the monitor TV, and the abnormal portion of the measurement target in which the temperature abnormality has been detected by the infrared detection unit can be confirmed on the monitor TV.

In a fourth aspect of the invention, the point setting means sets a plurality of sensor points on the monitor television screen based on the video signal from the surveillance camera, and the position recognition means a plurality of sensor points. And the array position of the infrared detection element are recognized in association with each other. When the image processing device detects a temperature abnormality based on the output signal of each of the detection elements, the sensor point position of the infrared detection element that has detected the temperature abnormality is displayed on the monitor television screen. As a result, the location of the temperature abnormality in the measurement target can be displayed by the sensor point on the monitor television screen showing the measurement target.

Fifth Invention The infrared detecting element in which the temperature abnormality has occurred can be displayed in a block-like manner on the monitor screen, and the location of the temperature abnormality can be displayed more easily.

Sixth Invention The infrared rays can be focused on the detection portion of the infrared detecting element by the convex lens in front of the infrared detecting element, and the heat detection efficiency of each infrared detecting element can be improved.

Seventh Invention The infrared ray can be focused on the detecting portion of the infrared detecting element by the Fresnel lens in front of the infrared detecting element, and the heat detection efficiency of each infrared detecting element can be improved.

Eighth invention The comparison means of the image processing apparatus compares the video signals from the surveillance camera at predetermined time intervals, and the image detection means changes the image on each sensor point based on the comparison result of the comparison means. To detect. Objects other than the object to be measured (eg smoke, sparks, etc.) within the shooting range of the surveillance camera
When the object appears on the monitor TV, the image detection means detects a change in the image based on the comparison between the video signal in which the object does not exist and the video signal in which the object exists by the comparison means. The marker display means displays the position on the sensor point where the image change has occurred on the monitor television screen. As a result, when smoke, sparks, or the like other than the object to be measured occurs within the shooting range of the monitoring camera, the position of the object is displayed on the monitor TV, and an alarm to that effect is issued. it can.

Ninth Invention When a temperature abnormality occurs in the measurement object portion, the location where the temperature abnormality occurs is displayed on the monitor TV, and when there is smoke or sparks, the location where the temperature abnormality occurs. Displayed on the monitor TV.
Therefore, it is possible to confirm both the temperature abnormality and the location of smoke, sparks, etc. on one monitor TV.

The tenth aspect of the present invention, by setting 13312 sensor points on the monitor TV by the point setting means, the change in the image displayed on the monitor TV as compared with the conventional number of sensor points (for example, 3328 points). It is possible to improve the detection accuracy of, and it is possible to easily detect the generation of minute objects on the screen such as smoke and sparks on the TV screen.

Eleventh Invention When the comparison means detects a change in the image of the sensor point due to smoke or sparks displayed on the monitor television based on the video signal from the surveillance camera, the marker display means smokes on the monitor television. Or, display the location of the spark. Therefore, for example, when a fire occurs in the measurement target, the infrared detection unit detects a temperature abnormality, and the image processing apparatus detects the occurrence of smoke, sparks, etc. due to the fire occurrence, and the location where these occur. The alarm is displayed on the monitor screen, and an alarm is issued by the alarm signal of the alarm generating means.

Twelfth Invention A subject to be measured such as industrial equipment is photographed by the surveillance camera, and a change in an image of a sensor point due to smoke or sparks displayed on the monitor television is detected based on a video signal from the camera. By adopting the method of use, for example, when a fire occurs in the object to be measured, it is possible to detect the temperature abnormality by the infrared detection unit and the generation of smoke, sparks, etc. by the image detection means, and the location of these occurrences. Can be displayed on the monitor screen, and further, an alarm can be issued by an alarm signal of an alarm generating means, and a fire or the like can be effectively prevented.

[0029]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 is a diagram showing an overall configuration of a monitor for heat and the like on a television screen according to the present invention, and the outline of the present invention will be described based on the same figure. 1 is an object to be measured such as temperature, 2 is an infrared detector for measuring temperature, 3 is smoke,
A CCD camera for detecting sparks and the like, 3a is a lens of the same camera 3, and 4 is an image of the measuring object 1 captured by the CCD camera 3, which is displayed on a monitor TV 5, and is detected from the infrared detecting section 2 and the CCD camera 3. An image processing device for detecting temperature abnormality, spark generation, etc. based on the signal of
Reference numerals 5 and 6 denote the monitor televisions (display means) which display the object to be measured captured by the CCD camera 3 and display the location where the temperature abnormality or the spark occurs based on the signal from the device 4. The CCD camera 3 is housed in a camera housing 3'as shown in FIG. 2A. In the case of outdoor installation, a cooling fan, a defroster, a heater (not shown), etc. are housed in the housing 3 '. It is provided to have weather resistance against various climatic conditions. A normal video camera using a vidicon or the like as an image pickup tube may be used instead of the CCD camera 3, and the camera may be either color or black and white. When using in a dark place, use a special night vision camera or use lighting.

The image processing device 4 is the CCD camera 3 described above.
The sensor points of 13312 points (see FIG. 2 (c)) are set as the detection points of the luminance signal on the video screen (monitor screen 5a) from the user, and the user can select all sensor points or sensors at arbitrary block positions. The marker writing switch 33 is used as a marker M1, M2, M3, etc. (see FIG. 6) as a point to display the monitor screen 5a.
It is possible to specify it above (the following monitor screen 5a
The sensor points set above are called markers).
Then, when a fire or the like occurs in the measurement object 1 and smoke, sparks, or the like is displayed at the marker position on the monitor screen 5a, the screen processing device 4 detects a change in the luminance signal of each marker. The sensor points at the same position are displayed in white or black on the monitor screen 5a and an alarm or the like can be issued (see FIG. 7A).

The infrared detecting section 2 is shown in FIGS.
As shown in 0, 7 in the horizontal direction and 5 in the vertical direction for a total of 3
Arrange five infrared sensors 1R to 35R vertically and horizontally,
The sensor is housed in the housing 2a, and the infrared detection area a1 of the infrared detection unit 2 is configured.
(See FIG. 8) so that the CC is adjusted so that it coincides with the monitoring area a2 (angle of view) as the image capturing range of the CCD camera 3.
It is installed adjacent to the D camera 3 at a predetermined angle.

The image processing device 4 divides the image of the measuring object 1 captured by the CCD camera 3, that is, the screen 5a of the monitor television 5 into 35 blocks corresponding to the 35 infrared sensors (see FIG. 2 (b)), the block corresponding to the infrared sensor detecting the temperature abnormality is set as a set of a large number of sensor points on the monitor screen 5a.
The surface can be displayed on the top (see FIG. 9). Next, a specific configuration of the present invention will be described in detail with reference to FIG.

(1) Configuration for detecting objects such as smoke and sparks on the monitor screen 5a by the CCD camera 3 (mainly A part in FIG. 3) 7 is a video input terminal, which is from the CCD camera 3 Input the video signal of. The video signal is 75 ohm, 1V
It complies with the standard of the NTSC system using the pp signal. Reference numeral 8 denotes a clamp circuit, which pedestal clamps the video signal so that the sync level does not change due to a change in the image, keeps the voltage constant, and outputs the luminance signal.

Reference numeral 9 is a sync separation circuit for separating a sync signal as a clock of the apparatus from the video signal, and 10 is a horizontal sync separation circuit for separating a horizontal sync signal from the sync signal.
Reference numeral 11 is an address oscillator for dividing the horizontal line 1H of one screen into 128 dots based on the horizontal synchronizing signal.
12 selects 104 lines from 262.5 lines of 1 screen (1 field) based on the horizontal synchronizing signal,
This is an address counter for dividing the vertical direction into 104 dots, and these are used to set sensor points as sampling points of 13312 points of horizontal 128 points and vertical 104 points on one screen (FIG. 2).
(C)).

Further, at the same time when the above-mentioned sensor points are set, these points are stored in the RAM via the selector 17.
It is configured so that the luminance signal levels of all the sensor points can be stored in the RAM 14 by allocating them as the address of 14. As a result, the sensor point position is set to R
Recording / updating can be repeated in the AM 14. More specifically, such a configuration is as shown in FIG. 4, and 3M is used as a sampling clock for dividing a horizontal line.
A Hz clock (oscillation clock is variable) 11a is used, and the horizontal address oscillator 11 is configured by the clock 11a and the address counter 11b. actually,
The sampling clock for dividing the horizontal line into 128 dots is 2.016 MHz, and the RAM is
14, and a sensing RAM 22 and a RA for a marker described later.
The storage unit M composed of M23 uses a 16K × 6 bit memory. By setting 13312 sensor points in this way, it is possible to detect minute changes in the luminance signal level of an object on the monitor screen 5a such as sparks and smoke, which could not be detected by the conventional number of points of about 3328 points. Will be able to. The number of sensor points is not limited to this, and can be increased or decreased depending on the subject. In the present embodiment, the horizontal sync separation circuit 10, the horizontal address oscillator 11, the horizontal address counter 12, and the RAM 14 constitute the point setting means.

Reference numeral 13 is a sampling pulse generating circuit for generating a sampling pulse for A / D conversion from the synchronizing signal, and reference numeral 15 is a 6-bit A / D converter. The luminance signal is a digital signal for each field. Converted to 6
It is divided into four levels of white and black density changes (gradation). The A / D converter 15 converts the converted digital signal into RO
It is sent to M16 and the RAM 14. The number of sampling points of the data A / D converted by the A / D converter 15 is 13312, which corresponds to the RAM 14.

A RAM 14 stores the digital signal.
In the digital signal for one field input from the A / D converter 15, the brightness level on the sensor point is stored in each address as sampling data. The RAM 14 stores the first input sampling data as old sampling data and sends the same to the ROM 16. Then, in the ROM 16, the new sampling data sequentially input from the A / D converter 15 is compared with the old sampling data. The old sampling data of the RAM 14 is input from the A / D converter 15 based on the fact that a change in the density of the marker position on the monitor screen 5a is detected based on the operation described later and an alarm signal is input to the sensing RAM 22. It is designed to be updated with new sampling data. Therefore, if there is no alarm output, the RAM 14 is not rewritten. The image level comparison time is 15 μsec.

18 is the RAM 14 and the sensing RAM 2
2. RAM for controlling writing of marker RAM 23
The control circuit is a selector 19 for each of the RAMs 14, 22 and 23 at a predetermined timing based on a horizontal synchronizing signal.
A write signal is sent out via the memory to control the write operation of each RAM.

A reference code as shown in FIG. 5 is preset in the ROM 16 and the A / D converter 15 is set.
From the RAM 14 and the old sampling data from the RAM 14. In the ROM 16, a sensitive zone with a density change (change in luminance signal) and a dead zone without a density change are set as a lookup table (reference code, see FIG. 5) according to the brightness levels of the old and new sampling data. By referring to this code, it is possible to detect whether or not there is a density change on each sensor point of the old and new sampling data. Then, as a result of the comparison, when there is a density change on any of the sensor points, an alarm signal (8-bit output data) including the position signal of the sensor point is output. As described above, the image level of the sensor point is theoretically configured so that the A / D converter 15 can distinguish 64 levels of density change (black and white gradation), but the image level slightly changes. However, if this change is directly used as a signal, a malfunction occurs. Therefore, the reference code is preset in the ROM 16 and a stable alarm signal is taken out.

A multiplexer selection circuit 20 selects an alarm signal input from the ROM 16 based on the sensitivity set by the sensor sensitivity switch 21, and outputs only the alarm signal having the set sensitivity.
The sensor sensitivity switch 21 can set the sensitivity of the alarm signal in eight steps. As a result, it is possible to eliminate uncertain density changes and to reliably detect only those with a density change.

Reference numeral 22 denotes the sensing RAM, which temporarily stores the alarm signal input from the multiplexer selection circuit 20 at a predetermined address (the address of the sensor point where the luminance signal has changed). In this embodiment, the A / D converter 15, the ROM 16 and the multiplexer selecting circuit 20 constitute an image detecting means.

Reference numeral 23 is a marker RAM, which stores a designated marker position and outputs the marker position to the AND circuit 24. The AND circuit 24 detects the alarm signal RA having the same address as the marker position stored in the marker RAM 23 for detecting RA.
When input to M22, an alarm signal synchronized with the television scan is sent to the marker synthesizing circuit 25, the alarm oscillator 26, and the relay circuit 27. That is, only when an alarm signal at the same address position as the address position stored in the marker RAM 23 is input, it is finally output to the marker synthesizing circuit 25 as an alarm signal.
As a result, only the image-changed portion on the marker (sensor point) can be sent to the marker synthesizing circuit 25 and added to the video output. If all sensor points are set as described above, the sensing RA
When an alarm signal is input from M22, the alarm signal is output from the AND circuit 24 in all cases.

The marker synthesizing circuit 25 adds a signal indicating a marker position indicated by an alarm signal to the video signal input from the video input terminal 7 in synchronism with the television scan and outputs the video signal to the video output terminal 28. .
That is, the position of the smoke K is displayed on the monitor screen 5a by being inverted in black as shown in FIGS. 7 (a) and 7 (b). As a result, it is possible to display the position where an abnormality such as smoke is generated. Further, at this time, among the 35 divided displays 45 on the operation panel of the device 4, the block corresponding to the position where the change in the luminance signal is detected is displayed so as to blink.

Further, the alarm oscillation circuit 26 is
It oscillates based on an alarm signal from the ND circuit 24 and turns on a light emitting means (alarm means) such as a lamp connected to the lamp display output terminal 29. In addition, the relay circuit 27 operates the alarm output terminal 3 based on the alarm signal.
It drives the buzzer 31 (alarm means) connected to 0. By these alarm operations, it is possible to notify the occurrence of abnormality. In this embodiment, the sensing RAM 22,
The marker RAM 23, the AND circuit 24, and the marker synthesizing circuit 25 constitute marker display means, and the alarm oscillator 26 and the relay circuit 27 constitute alarm signal generating means.

Reference numeral 32 is a write control circuit for controlling writing to each RAM, 33 is a marker write switch for writing to the marker RAM 23, 34 is a vertical sync separation circuit, and 35 is a field conversion circuit.

(2) Configuration for Heat Detection by Infrared Detection Unit First, the specific configuration of the infrared detection unit 2 will be described. As described above, the infrared detector 2 for detecting heat is
A total of 35 infrared sensors 1R to 35R, seven in the horizontal direction and five in the vertical direction, are housed and arranged in the front surface of one housing 2a (see FIG. 10). The infrared detection area 2 of the infrared detection section 2 has a CC as shown in FIG.
The mounting position is set so as to coincide with the surveillance area a2 which is the shooting range of the D camera 3, and the 13312 sensor points obtained from the video signal and the 35 detection blocks overlap on the monitor screen 5a. , One block is 20 × 18 36
It corresponds to 0 sensor points.

Since the above-mentioned 35 infrared sensors have the same structure, the structure of one sensor 1R will be described in detail. The sensor 1R has infrared rays provided on a substrate 36 as shown in FIG. 12 (c). The detection element 1R 'and the detection element 1R' are hermetically sealed on the substrate 36 with screws 37.
It is composed of a stopped cylindrical cover 38, and a convex Fresnel lens 38a is formed on the upper surface of the cover 38 facing the detection element 1R '.

By the way, the intensity W of the infrared ray input to the infrared detecting element 1R 'is converted into energy and expressed by the following equation.

W = αβ (T ⁴ −Ts ⁴ ) πr ² / πL ² (where α: emissivity, β: Stefan Boltzmann constant,
T: temperature of the radiator, Ts: ambient temperature, r: light receiving area of the sensor, L: distance between the sensor and the radiator) If the distance between the heating element and the infrared sensor is longer than the above formula, the sensitivity is low (for example, thermopile). Since the sensor sensitivity cannot be sufficiently obtained (in the case of this embodiment, the distance between the heating element (measurement target 1) and the sensor is 20 m as described later).
By using the Fresnel lens 38a, infrared rays are focused on the light receiving portion of the infrared detection element 1R 'to improve the sensitivity of the infrared detection element 1R'. As shown in FIG. 12 (a), the Fresnel lens 38a has a small groove 38b concentrically formed in the front surface thereof, and is configured so that infrared rays can be focused toward the center thereof. As the lens material, polyethylene is suitable because of its high infrared transmittance.

In this embodiment, as shown in FIG. 13, the distance L between the infrared detecting element 1R 'and the object 1 to be measured is L.
= 20 m, L = 20 m, the focal length of the lens is set so that the detection area X = 2 m (2 m × 2 m) of the infrared detection element 1R ′. The Fresnel lens 38a
Detects the infrared rays radiated on the surface of the infrared ray detecting element 1
This is for concentrating on the R'detection portion (light receiving portion), and has an advantage that the focusing efficiency is better than that of a flat lens and that the convex shape has a large strength. Further, the Fresnel lens 38a is easy to process into various shapes as compared with an ordinary silicon lens (convex lens) used for a heat sensor, and is excellent in mass productivity.

On the other hand, an 8 mm fixed focus lens (standard) is used as the lens 3a of the CCD camera 3, and the comprehensive angle of the lens is 43.6 degrees. In this case, CCD
The angle of view (horizontal length W, vertical length H) of the camera 3 can be calculated by the following equation.

W≈ (6.4 / 8 mm) × distance L × 0.9 H≈ (4.8 / 8 mm) × distance L × 0.9 In the case of the present embodiment, the distance L to the measurement object 1 = Since it is set to 20 m, the lateral width that can be photographed at the position of L = 20 m is W≈14 m from the above formula (see FIG. 14). Therefore,
The width 14m is the detection area X of the infrared sensor
To cover with (= 2m), 7 in the lateral direction (14m / 2
m) sensor is required. Further, the vertical width H of the fixed-focus lens that can be photographed at a distance of 20 m is H≈from the above equation.
Since the distance is 10 m, the sensing area X of the above infrared sensor
= 5m to cover at 2m (10m / 2
m) sensor is required. Therefore, 7 in the vertical direction,
The above CCD with a total of 35 infrared sensors, 5 in the horizontal direction
Surveillance area a2 of camera 3 (shootable range = distance 20)
m, 10 m in height and 14 m in width) can be covered.
When the infrared detection area a1 is changed according to the monitoring area a2, it can be dealt with by increasing or decreasing the number of infrared sensors.

As described above, the monitor area a2 (angle of view) of the CCD camera 3 and the detection area a1 of the infrared detecting section 2 are installed so as to match each other as shown in FIG. The sensor point of each point is divided into the above 35 blocks, 360 per block
The infrared detection area of the point is set (see FIG. 9).

The infrared detecting section 2 is shown in FIGS.
As shown in FIG. 1, the infrared sensors are arranged side by side so that the front surface is curved in the left-right direction, and the opening angles of the infrared sensors at both ends are set to 43.6 degrees, and the CCD camera 3
Is configured to match the inclusion angle of.

Next, the electrical configuration for detecting infrared rays (mainly part B in FIG. 3) will be described with reference to FIG. Reference numeral 39 denotes a sensor signal amplification circuit, which amplifies the detection signal obtained from each of the 35 sensors 1R to 35R and sends the amplified detection signal to the multiplexer 40 at the next stage. As described above, the Fresnel lens 38a focuses the infrared light on the light receiving portion of the sensor to increase the sensitivity of the infrared sensor. Further, the amplifier circuit 39 amplifies the sensor output signal to obtain a sufficient sensor output. be able to.

Reference numeral 40 denotes the multiplexer, which time-divisionally detects the detection signal input from the amplifier circuit 39 by the CPU 41.
To the A / D conversion port 42. Reference numeral 43 denotes a ROM for the CPU, which stores a program for controlling the basic operation of the apparatus such as writing data indicating that a temperature change has occurred in the address of the sensing RAM 22 corresponding to the block in which the temperature abnormality has occurred. Has been done.

A CPU RAM 44 stores the A / D converted infrared sensor output data (including the reference temperature and the like), and stores the result of arithmetic processing using these data. Further, it reads the alarm information (address and data) from the sensing RAM 22 and serves as a temporary storage location for these data. In this embodiment, the RAM 14, the sensing RAM 22 and the CPU RA
M44 constitutes a position recognition means.

Reference numeral 45 denotes the display device (display means) provided on the operation panel of the image processing apparatus 4, and displays 35 blocks corresponding to the 35 blocks (see FIG. 1) and temperature. When an abnormality occurs, the corresponding block is displayed by blinking or the like. 46 is various key switches (sensor sensitivity switch 21,
Marker writing switch 33, switches S1 to S
2).

The sensing RAM 22 is normally connected to the 12-bit bus of the horizontal address oscillator 11 through the selector 17 and the RAM control circuit 18 through the selector 19. From this state, the CPU 41 controls the selector at a constant time interval by a control signal. 17,19
Is switched to the CPU 41 side. Then, in a state where both the selectors 17 and 19 are switched to the CPU 41 side, a block display of an abnormal temperature is displayed on the monitor screen 5a.

When the selector 17 is switched to the CPU 41 side, the address bus of the CPU 41 and the address of the sensing RAM 22 are connected, and the selector 19 is connected.
Is switched to the CPU 41 side, the write signal and the data signal of the CPU 41 are connected to the sensing RAM 22. Then, in such a switching state, the CPU 41
Is the address for the block where the temperature change occurs
A RAM 22 for sensing which is designated as AM22
The data signal "1" indicating that the temperature change has occurred is written to the address.

The CPU 41 is the A / D conversion port 4
Each detection signal input to 2 is converted into 12-bit digital data at the set sampling time and temporarily stored in the register 47, and the 35 detection signals are constantly stored in the register 47.
After being taken into the interior and subjected to arithmetic processing, the difference from the reference temperature stored in the CPU RAM 44 is calculated by the comparison unit (temperature abnormality detection means) 48. When this value exceeds a predetermined value set in advance, it is determined to be abnormal, and the address of the block in which the temperature abnormality has occurred is set in the RAM 44.
Recognize based on the data stored in. Then, at the timing when the selector 17 or the selector 19 is switched to the CPU 41 side, the address of the block in which the temperature change occurs is designated to the sensing RAM 22 via the address bus and the selector 17, and further the designated address of the sensing RAM 22. "1" indicating that there was a temperature change in the
Is written via the selector 19. With this configuration, the data “1” can be written to the 360 points of the block where the temperature has changed, and then the AND
Based on the configuration described in (1) above via the circuit 24 and the marker synthesizing circuit 25, the above-mentioned block (block consisting of 360 sensor points) is displayed on the monitor screen in synchronization with the television scan (for example, white dots). Is displayed (as a block B16 in FIGS. 1 and 7D). In this embodiment, the CPU 41, the sensing RAM 22, the AND circuit 24, the marker RAM 2
3. The marker synthesizing circuit 25 constitutes display control means.

By attaching a zoom lens to the CCD camera 3, the block B16 at the location where the temperature abnormality occurs is displayed on the monitor screen 5a, and then the switch S1 on the operation panel is pressed, The zoom lens zooms the shooting range of the block B16 to display only the block B16 on the entire screen of the monitor. As a result, the location of the temperature abnormality can be enlarged and confirmed in detail on the monitor screen 5a. If the switch S2 is pressed, the block B16 in which the temperature abnormality has occurred is displayed on the screen, and then the zoom is automatically performed on the full screen display of the block B16.

Since the AND circuit 24 ANDs the marker position stored in the marker RAM 23 and the address position of the data written in the sensing RAM 22 as described in (1) above, the temperature abnormality is designated by the marker. If it is outside the range of the specified area, block display is not performed. Of course, if all the 13312 sensor points are designated as markers, the blocks will be displayed even if the temperature abnormality occurs in any of the blocks. The above CPU
Reference numeral 41 periodically checks each key input from the key switch 46, and when there is a key input, a series of work and display based on the key input is performed. Then, the alarm oscillator 26 and the relay circuit 27 are driven by the output signal from the AND circuit 24, and the lamp display and the alarm operation by the buzzer 31 are performed.

In the description of the operation for detecting smoke or the like in (1) above, the sensor points at the positions where smoke, sparks, etc. are generated are displayed in black or white as shown in FIGS. 7 (a) and 7 (b). Although the configuration has been described, even if the block (360 points) corresponding to the position where smoke, sparks or the like occurs is displayed as a white or black block on the surface using the 35 blocks as shown in FIG. 7C. good. Further, reference numeral 6 in FIG. 1 denotes a monitor television incorporated in the image processing apparatus 4, and displays the same as the monitor television 5.

(3) The present invention is constructed as described above. Next, the operation of this device will be described.

As shown in FIG. 1, it is assumed that the CCD camera 3 and the infrared detector 2 are installed toward the measurement object 1 and the measurement object 1 is displayed on the monitor TV 5. In addition, the infrared detection unit 2 has a detection area a1.
Is set so as to match the monitoring area a2 of the CCD camera 3 (see FIG. 8), and the setting is made so that the temperature change can be detected in each block obtained by dividing 13312 sensor points on the screen into 35 blocks. It is supposed to be done.

(I) Operation of detecting smoke, sparks, etc. by the CCD camera In this state, the video signal input from the video input terminal 7 of the image processing device 4 is pedestal clamped by the clamp circuit 8 and the luminance signal is A / D converted. It is converted into a digital signal by the device 15. The horizontal sync signal of the video signal is separated by the sync separation circuit 9 and the horizontal sync separation circuit 10, and the address counter 12 and the address oscillator 11 set sensor points of 128 horizontal and 104 vertical on one screen based on the synchronous signals. (See FIG. 2C), and at the same time, each sensor point is assigned as an address of the RAM 14 by the control of the RAM control circuit 18 via the selectors 17 and 19.

Next, the marker write switch 33 is used to set a marker as a monitoring area on the screen 5a of the monitor television 5. In the case of this embodiment, all the sensor points (13312 points) are designated as markers on the screen, and the marker M1 is set as the monitoring range on the monitor screen 5a (see FIG. 6A).

1 sampled by the A / D converter 15
Field sampling data is ROM16 and R
It is sequentially sent to the AM 14. The ROM 16 is A /
The new sampling data input from the D converter 15 and the old sampling data input from the RAM 14 are compared on the basis of a preset reference code (FIG. 5),
Detects whether there is a change in concentration.

Here, when there is no smoke or sparks, the luminance level of the old sampling data is A and the luminance level of the new sampling data is B in FIG. 5, and the luminance level does not change much in the vicinity of the white level. The position of the point i in the dead zone is referred to, and it is determined that the density has not changed. Therefore, in this case, the alarm signal is not output. Also,
When smoke, sparks, etc. occur in the monitoring area, the brightness level of the old sampling data becomes A, the brightness level of the new sampling data becomes C (see FIG. 5), and the point j in the sensitive zone changes because the brightness level changes. It is determined that there is a change in the density by referring to it. Therefore, in this case, the alarm signal is output to the multiplexer selection circuit 20.

The multiplexer selection circuit 20 determines whether or not the alarm signal has the sensitivity set by the sensor sensitivity switch 21, and if so, the alarm signal is sent to the sensing RAM 22.

The sensing RAM 22 stores the alarm signal input from the multiplexer selection circuit 20 at the address of the sensor point where the brightness level has changed. On the other hand, the marker RAM 23 stores the address positions of all the sensor points, and the AND circuit 24 stores the address position of the alarm signal input to the sensing RAM 22 and the address position specified by the marker in the marker RAM 23. When they match, an alarm signal synchronized with the television scan is sent to the marker synthesizing circuit 25, the alarm oscillator 26, and the relay circuit 27. In the case of the present embodiment, since all sensor points are designated as markers, when an alarm signal is input to the sensing RAM 22, the AND circuit 24 outputs an alarm signal in all cases. That is, only the portion where the image changes on the designated marker is sent to the marker synthesizing circuit 25, where the marker signal is added to the video signal. Therefore, on the screen 5a of the monitor TV 5 connected to the video output terminal 28, the sensor point position (in this case, the position of smoke, sparks, etc.) where the density has changed is displayed in black, for example (see FIG. 7 ( b), (c)).
Note that, in FIG. 7B, when the smoke generation position is displayed by sensor points, FIG. 7C shows the block (360 points) at the position corresponding to the smoke generation position out of 35 blocks. The case where it is displayed is shown.

When a part of the monitor screen 5a is designated as the markers M2 and M3 (see FIG. 6).
(See (b)), the alarm signal is output from the AND circuit 24 only when the alarm signal at the position designated by the marker, that is, at the same address as the address stored in the marker RAM 23 is input to the sensing RAM 22. Become.

Based on the alarm signal, the alarm oscillating circuit 26 lights up a display means such as a lamp connected to the lamp display terminal 29 to give a warning. Further, the relay circuit 27 drives the buzzer 31 connected to the alarm output terminal 30 to issue an alarm. As a result, it is possible to know that the measurement object 1 has smoke, sparks, or the like, and to know its position on the monitor screen 5a. Therefore, the user does not have to keep watching the monitor screen 5a.

(Ii) Operation of Heat Detection by Infrared Detector The meanwhile, each infrared sensor 1R to 35 of the infrared detector 2
The output signal of R is input to the sensor signal amplifying circuit 39, and after being amplified by the amplifying circuit 39, the multiplexer 4
It is time-divided with 0 and is input to the CPU 41. CP above
The signal input to U41 is converted into digital data by the A / D conversion port 42 and then temporarily stored in the register 47. After that, the CPU 41 compares the digital data with the reference temperature stored in advance in the CPU RAM 44 by the comparison means 48 to detect the temperature difference, and if the temperature difference does not exceed the predetermined value, the temperature is normal. Therefore, the writing operation to the sensing RAM 22 is not performed. After that, when a temperature abnormality occurs in the measurement object 1 and, for example, the temperature difference between the data from the infrared sensor 16R and the reference temperature exceeds the predetermined value, the CPU 41
Is a block B16 corresponding to the infrared sensor 16R.
The address of is read from the CPU RAM 44,
At the timing when the selectors 17 and 19 are switched to the CPU 41 side, the address (360 points) of the block B16 is passed through the selector 17 to the sensing RA.
At the same time as designating to M22, data "1" indicating that the temperature has changed is written to the designated address of the RAM 22 via the selector 19 by the write signal.

In this embodiment, since markers are set for all 13312 points as described above, the marker RAM
All sensor points are stored in 23.
When the data "1" is written to the designated address of the sensing RAM 22 in the ND circuit 24, the marker synthesizing circuit 25, the alarm oscillator 26, and the relay circuit 27 are written.
An alarm signal synchronized with the TV scan is sent to.
As a result, only the part of the block B16 where the temperature on the sensor point has changed can be sent to the marker synthesizing circuit 25. Then, the marker synthesizing circuit 2
5 is the block B based on the input of the alarm signal.
The marker signal at 16 positions is added to the video signal. As a result, the position of the block B16 on the monitor screen 5a is displayed in black or white, for example (FIGS. 1 and 7 (d)).
reference). Further, the lamp connected to the lamp display terminal 29 is turned on, and the buzzer 31 connected to the alarm output terminal 30 is driven to give an alarm. As a result, it is possible to know that the temperature abnormality has occurred, and it is possible to confirm the location of the temperature abnormality of the measuring object 1 on the monitor screen 5a. Therefore, it is not necessary for the monitor to constantly watch the monitor screen 5a when detecting the temperature abnormality. After that, when the switch S2 is pressed, the block B16 in which the temperature abnormality has occurred due to the zoom of the CCD camera 3 is displayed on the entire monitor screen 5a, and the location of the temperature abnormality can be confirmed in detail on the monitor screen 5a.

Reference numeral 49 in FIG. 3 denotes a light pen. By touching the light pen 49 on the monitor screen 5a, an arbitrary number of sensor points are designated as markers at arbitrary positions on the monitor screen 5a. It is also possible. In this case, the marker position designated by the light pen 49 is stored in the marker RAM 23 via the light pen control circuit 50, and when a change in the brightness signal or a temperature abnormality occurs at the marker position, the marker on the monitor screen 5a. Will be displayed by blinking or the like. By using the light pen 49, it is possible to set a monitoring area of any size in advance at any position where an abnormality is considered to occur.

Further, although an example of the infrared sensor has been described in the above-mentioned embodiment, a plurality of gas sensors may be connected instead of the sensors 1R to 35R so that a gas leak can be detected. In this case, a plurality of gas sensors may be attached to a plurality of locations on the measurement target, and the mounting position of the gas sensor that has detected the gas leak based on the gas leak detection operation may be displayed on the monitor screen 5a.

(4) As described above, according to the present invention, the temperature of each part of the measuring object 1 can be detected by a plurality of infrared sensors, and the temperature abnormality is automatically detected. Can be displayed on the monitor TV 5 and an alarm can be issued.
It is possible to timely detect an abnormal state that does not appear in the image, and it is not necessary to keep watching the monitor unlike the conventional device, and the location where the abnormality has occurred can be easily confirmed.

Further, the apparatus can be constructed at a low cost (about 1/10) as compared with the conventional thermography, and can be easily installed at a plurality of places in the factory.

Further, a sensor point is set on the monitor TV 5, and the object to be measured 1 is measured by the sensor point.
Since it is possible to display the location where the temperature abnormality occurs, it is possible to check at which location of the measurement object 1 the temperature abnormality occurs at a glance on the monitor screen while watching the actual image of the measurement object 1. Therefore, it is possible to very easily confirm the location where the temperature abnormality occurs. Further, since the block in which the temperature abnormality has occurred can be magnified and viewed with the zoom lens, the location where the abnormality has occurred can be confirmed in more detail.

Further, since the photographing range of the surveillance camera is divided into blocks and the temperature abnormality of each block can be detected, it is possible to detect the temperature of a plurality of positions of the measuring object 1 and the number of infrared sensors. It is possible to increase the number of detection blocks and increase the detection accuracy by increasing.

Further, since a plurality of infrared detecting elements are arranged in a block so that the vertical and horizontal lengths of the monitoring area a2 of the monitoring camera and the vertical and horizontal lengths of the detecting area a1 of the infrared detecting section 2 match, the infrared detecting elements are detected. It is possible to match the shooting range of area a1 and the surveillance camera, divide the range of the entire screen displayed on the monitor TV into a plurality of blocks, and perform temperature detection for each divided block. It can be effectively used for detecting temperature anomalies such as. Furthermore, since the same area as the wide area that can be photographed by the surveillance camera can be set as the infrared detection area, it is possible to detect an extremely wide temperature abnormality.

In addition, since the location of the temperature abnormality in the measurement object 1 can be displayed on the image of the measurement object 1 displayed on the monitor screen 5a, the location of the temperature abnormality can be seen at a glance. It can be confirmed, and anyone can easily grasp the abnormal part without special knowledge.

Further, since the infrared rays can be efficiently focused on the infrared sensor by the convex Fresnel lens 38a and the output signal of the sensor is amplified by the sensor signal amplifying circuit 39, the object to be measured 1 and the infrared ray Even if the distance to the detection unit 2 is long, a sufficient output signal can be obtained.

Further, in addition to the above-mentioned temperature abnormality, even when an object intrudes, smoke, sparks, etc. occur within the photographing range of the surveillance camera, they are detected based on the change in the luminance signal on the sensor point. Since it is possible to display its position on the monitor TV and give an alarm,
For example, the occurrence of a fire or the like can be reliably detected at an early stage, and the occurrence of an abnormality can be notified.

Further, it is possible to display each display of temperature abnormality and detection of smoke, sparks, etc. on the same monitor TV 5.
It is possible to confirm a plurality of types of abnormalities on one monitor television 5.

Since the sensor points are set to 13312 points, the image detection accuracy can be improved as compared with the conventional device, and even an extremely small object such as smoke or sparks can be detected as a change in the brightness signal. It becomes possible to detect easily, and in combination with the above temperature detection, an extremely effective detection device for heat or the like can be constructed.

Although the present invention has been described above centering on the infrared sensor, it is needless to say that the gas sensor may be used instead of the infrared sensor and can be applied to other various sensors.

[0090]

As described above, according to the present invention, the temperature of each part of the object to be measured can be detected by a plurality of infrared sensors, the temperature abnormality is automatically detected, and the location where the temperature abnormality occurs is displayed. Since it can be displayed on the means and an alarm signal can be generated, temperature abnormality can be detected in a timely manner, and there is no need to keep watching the monitor unlike the conventional device.
It is possible to easily confirm the location of the abnormality.

Further, since the object to be measured can be confirmed on the monitor TV of the surveillance camera and the location of the temperature abnormality can be confirmed on the monitor TV, the temperature abnormality of the object to be measured is displayed on the monitor TV. It is possible to easily confirm the non-existence state together with the occurrence location.

Further, by combining the detection area of the infrared detection section and the monitoring area of the surveillance camera, the range of the screen displayed on the monitor TV can be divided into a plurality of blocks, and the temperature detection can be performed for each divided block. Therefore, a wide area that can be photographed by the surveillance camera can be set as the infrared detection area.

Further, since it is possible to set a sensor point on the monitor TV and display the location of the temperature abnormality of the measurement object by the sensor point, which location of the measurement object the temperature abnormality has occurred. Can be confirmed at a glance on the monitor TV. That is, it is possible to intuitively identify the location of the temperature abnormality because the location of the temperature abnormality of the measurement object on the TV screen can be displayed on the image of the measurement object displayed on the monitor TV. It is easy to recognize and anyone can easily grasp the abnormal part.

Further, since the convex lens is provided in front of the infrared detecting element, infrared rays can be focused efficiently, the heat detecting efficiency of the infrared detecting element can be improved, and highly accurate temperature detection can be performed. be able to.

In addition to the above-mentioned temperature abnormality, even when an object intrudes, smoke, sparks, etc. occur within the shooting range of the surveillance camera, these are detected based on the change in the image on the sensor point. As a result, the position can be displayed on the monitor TV and an alarm can be issued, so that, for example, the occurrence of a fire can be reliably detected in advance.

Further, each display of temperature abnormality and detection of smoke, sparks, etc. can be displayed on the same monitor television, and the occurrence of a plurality of types of abnormality can be easily confirmed on the same monitor.

Since the sensor points are set to 13312 points, the image detection accuracy can be improved as compared with the conventional device, and small objects such as smoke and sparks can be easily detected as a change in the luminance signal. In combination with the above temperature detection, it is possible to configure an extremely useful detection device for heat or the like with high accuracy.

Further, by using this device for monitoring industrial equipment, it is possible to quickly detect and warn an initial abnormality such as a temperature abnormality and a fire occurrence such as a spark or smoke generation. It is possible to prevent the occurrence of accidents and prevent a serious accident.

[Brief description of drawings]

FIG. 1 is a diagram showing an overall configuration of an automatic detection device for heat and the like according to the present invention.

FIG. 2A is a perspective view of an infrared detector and a CCD camera of the present invention, FIG. 2B is a front view of the monitor screen showing a state in which the monitor screen is divided into 35, and FIG. It is a front view of the monitor screen which shows a sensor point.

FIG. 3 is a block diagram showing an electrical configuration of an automatic heat detection device of the present invention.

FIG. 4 is a block diagram around a horizontal address oscillator of the automatic detection device.

FIG. 5 is a conceptual diagram showing a reference code of a ROM of the image processing apparatus.

FIG. 6A is a front view of a monitor screen in which a marker is set on the entire monitor screen, and FIG. 6B is a front view of a monitor screen in which a marker is specified on a part of the monitor screen.

7 (a) is a partially enlarged view of the monitor screen showing the position of smoke on the monitor screen at sensor points, and FIG. 7 (b) is a view showing the positions of smoke and sparks at the sensor points on the same screen. The front view of the displayed monitor screen, (c) is the front view of the monitor screen when the above-mentioned smoke and spark generation positions are displayed in blocks, and (d) is the monitor screen when the temperature abnormality occurrence position is shown in blocks. It is a front view.

FIG. 8 is a diagram showing a relationship between a monitoring area of a CCD camera and a detection area of an infrared detection unit.

FIG. 9 is a diagram showing a relationship between one block of a monitor screen divided into 35 and sensor points.

FIG. 10 is a perspective view of an infrared detector.

FIG. 11 is a partial cross-sectional view of an infrared detection unit.

12A is a front view of an infrared sensor, FIG. 12B is a side view of the sensor, and FIG. 12C is a vertical cross-sectional view of the sensor mounted on a substrate.

FIG. 13 is a conceptual diagram showing an infrared detection area of an infrared sensor.

FIG. 14 is a conceptual diagram showing a surveillance area of a CCD camera.

[Explanation of symbols]

 1R to 35R Infrared sensor 1R 'to 35R' Infrared detection element 1 Object to be measured 2 Infrared detection part a1 Detection area a2 Monitoring area 3 CCD camera 4 Image processing device 5 Monitor TV 5a Monitor screen 14 RAM 22 Sensing RAM 23 Marker RAM 23 24 AND circuit 25 Marker synthesizing circuit 26 Alarm oscillator 27 Relay circuit 31 Buzzer 38a Fresnel lens 41 CPU 44 CPU RAM 48 Comparing means

Claims (12)

[Claims] 1. An infrared detecting section capable of arranging a plurality of infrared detecting elements on a front surface to set a plurality of detecting areas for each detecting element with respect to an object to be measured, and a display capable of displaying an arrangement position of the infrared detecting elements. And an image processing device that receives the output signal of the infrared detection element and recognizes the position of the infrared detection element that has detected a temperature abnormality based on the output signal, and the image processing device is configured to detect the temperature based on the output signal. A temperature abnormality detecting means for detecting an abnormality, a display control means for displaying the position of the infrared detecting element detecting the temperature abnormality among the plurality of infrared detecting elements based on the detection operation of the detecting means on the display means, An automatic detection device for heat or the like, comprising: an alarm signal generating means for generating an alarm signal based on the detection operation of the detecting means. 2. The automatic detection device for heat or the like according to claim 1, further comprising alarm means for issuing an alarm indicating that a temperature abnormality has occurred based on the alarm signal. 3. A surveillance camera is connected to the image processing apparatus, and a monitor television for displaying an image of a measurement object photographed by the surveillance camera is provided as the display means, and the infrared detection section is provided in a surveillance area of the surveillance camera. The automatic detection device for heat or the like according to claim 1 or 2, wherein the detection area of the infrared detection element is configured to be displayed on the monitor television screen by superimposing the detection areas. 4. Point setting means for setting a plurality of sensor points on the monitor screen in the image processing apparatus based on a video signal from the surveillance camera, an array position of each infrared detection element, and the sensor point position. And a position recognition means for recognizing the array position of the infrared detection elements in association with each other, and the image processing apparatus detects the temperature abnormality by the display control means based on the temperature abnormality detection operation. The automatic detection device for heat or the like according to claim 3, wherein the sensor point position corresponding to is displayed on the monitor TV. 5. The infrared detection elements are arranged in a grid pattern, and sensor points corresponding to the infrared detection elements whose temperature abnormality is detected by the display control means based on the temperature abnormality detection operation are displayed on the monitor screen. The automatic detection device for heat or the like according to claim 4, wherein the automatic detection device is configured to be displayed in a block shape. 6. The infrared ray detecting element is provided with a convex lens in front thereof, and the infrared ray is focused on the detecting portion of the infrared ray detecting element by the lens.
An automatic detection device for heat or the like according to 3, 4, or 5. 7. The automatic detection device for heat etc. according to claim 6, wherein a Fresnel lens is provided in place of the convex lens. 8. The image processing device, which compares the video signals input from the surveillance camera at predetermined time intervals to detect a change in the image on the sensor point by the comparison operation, and the detection device. And a marker display means capable of displaying a sensor point position where an image change is detected based on the detection operation of the image on the monitor screen. An automatic detection device for heat or the like according to claim 3, 4, 5, 6 or 7, which generates heat. 9. The automatic detection of heat and the like according to claim 8, wherein the position of the infrared detecting element detecting the temperature abnormality and the position detecting the change of the image are displayed on the monitor television. apparatus. 10. The point setting means 1331
10. Two sensor points are set on the monitor TV, and the sensor points are set to 4, 5, 6, 7, 8 or 9.
Automatic detection device for heat etc. described. 11. The monitoring camera photographs an object to be measured, and based on a video signal from the camera, a change in an image of a sensor point due to smoke or sparks displayed on the monitor TV is detected by the image detecting means, 11. The automatic detection device for heat, etc. according to claim 8, 9 or 10, wherein the marker display means displays the location of smoke or sparks on the monitor television based on the detection operation of the detection means. . 12. The monitoring camera photographs an object to be measured, and based on a video signal from the camera, a change in an image of a sensor point due to smoke or sparks displayed on the monitor TV is detected by the image detecting means, 11. The method for using the automatic heat and other detection device according to claim 8, 9 or 10, wherein the marker display means displays the location of smoke or sparks on the monitor television based on the detection operation of the detection means. .