Detection device

Abstract

To reduce the time required to inspection.SOLUTION: A flame detection device 10 is provided, comprising a UV sensor 13 for detecting appearance of ultraviolet rays in a detection range, an image capturing device 14 having a shooting range including the detection range, a turntable 30 cancelable of changing orientations of the UV sensor 13 and the image capturing device 14, and a processing device 22 configured to perform detection processing of stopping the turntable 30 according to a detection result of the UV sensor 13 and allowing an image captured by the image capturing device 14 to be viewed using a management device 50.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a detection device.

Background Art

[0002] At a construction site such as a construction site, there may be a need for hot work. Workers who have performed such hot work ensure safety by checking for residual fire a certain time after the completion of the hot work. Also, at the construction site, for more reliable safety assurance, after the work for a day is completed, the safety officer conducts a residual fire inspection as a safety check. Regarding such a residual fire inspection, Patent Document 1 describes that it is performed by a patrol robot that patrols the construction site.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, the residual fire inspection by the patrol robot requires time for various settings. On the other hand, the residual fire inspection by the safety officer also requires a great deal of effort because the entire construction site has to be inspected.

Means for Solving the Problems

[0005] The detection device for solving the above problems includes a sensor that detects an abnormality in a detection range, an imaging device whose imaging range includes the detection range, a range changing device that can change the orientations of the sensor and the imaging device, and a processing device that executes a detection process for stopping the detection range changing device and making an imaging image obtained by the imaging device viewable by a management device based on a detection result of the sensor.

Effects of the Invention

[0006] According to the present invention, the time required for inspection can be reduced. [Brief explanation of the drawing]

[0007] [Figure 1] This diagram shows a schematic configuration of one embodiment of a detection device as viewed from the front. [Figure 2] This block diagram shows the electrical configuration of the detection device. [Figure 3] In a modified example, this block diagram shows the electrical configuration of the detection device. [Figure 4] This figure shows the schematic configuration of the detection device in a modified example. [Modes for carrying out the invention]

[0008] Referring to Figures 1 and 2, an embodiment of a detection device that detects flames (emission of ultraviolet rays) as an abnormality will be described. As shown in Figure 1, the flame detection device 10 is configured to communicate with a management device 50 installed in a management office or the like. The flame detection device 10 is configured to be portable by workers performing fire-related work. The flame detection device 10 is installed at the work site where the fire-related work is performed by the worker, taking into consideration the arrangement of materials, etc. When the flame detection device 10 detects a flame (ultraviolet light source) near its installation location, it notifies the management device 50. The flame detection device 10 comprises a main unit 11 and a turntable 30 which is a range changing device.

[0009] (Main unit of the device) The main body of the device 11 includes a housing 12, an ultraviolet sensor 13, and an imaging device 14. The housing 12 is formed in a box shape, for example, from resin. The housing 12 has a rotating shaft portion (not shown) on its legs 15 that extends in the left-right direction in Figure 1. The housing 12 is configured to be openable and closable around its rotating shaft portion as the center of rotation. The housing 12 is also provided with a handle 16 on its top surface to facilitate carrying the flame detection device 10.

[0010] The enclosure 12 houses a battery 21, a processing unit 22, a communication device 23, and an alarm buzzer 24, among other components. The processing unit 22 performs various processes related to flame detection. The processing unit 22 and the management unit 50 are centered around an information processing unit. The information processing unit can be implemented, for example, by one or more dedicated hardware circuits such as ASICs, one or more processing circuits that operate according to computer programs (software), or a combination of both. The processing circuit includes a CPU and memory (ROM and RAM, etc.) that stores programs executed by the CPU. Memory, or computer-readable media, includes any available media accessible by a general-purpose or dedicated computer.

[0011] The communication device 23 has an antenna 25 extending from the side of the housing 12 and transmits and receives various information with the management device 50. The communication device 23 may communicate directly with the management device 50 or it may communicate with the management device 50 via the internet. The lamp 26 provided on the front of the housing 12 lights up when communication via the communication device 23 is possible. The alarm buzzer 24 sounds an alarm when the flame detection device 10 detects a flame.

[0012] The battery 21 supplies power to various devices, including the ultraviolet sensor 13, the imaging device 14, the processing unit 22, and the communication device 23. The ultraviolet sensor 13 is mounted on the front of the housing 12, facing forward. The ultraviolet sensor 13 detects flames based on the intensity of ultraviolet light in the area facing forward of the housing 12, which is its detection range. When the ultraviolet sensor 13 detects a flame, it outputs a flame detection signal to the processing unit 22.

[0013] The imaging device 14 is mounted on the front of the housing 12. The imaging device 14 includes the detection range of the ultraviolet sensor 13 in its imaging range. The imaging device 14 outputs the captured image data to the processing device 22. Here, it is preferable that the detection range of the ultraviolet sensor 13 be the same as or smaller than the imaging range of the imaging device 14. For example, if the detection range of the ultraviolet sensor 13 is wide, shielding material is provided around the ultraviolet sensor 13 to narrow the detection range.

[0014] (Turntable) The turntable 30 supports the main body 11 of the device. The turntable 30 has a support base 31, a rotating part 32, and a table body 33. The support base 31 constitutes the base of the turntable 30. The rotating part 32 is a rotation axis that extends vertically from the center of the support base 31. 35 The rotating part 32 is rotatably connected to the support base 31 with the rotating part 32 as the center of rotation. The rotating part 32 is, for example, rotatably connected to the support base 31 by 360°. The table body 33 is fixed to the rotating part 32 and is the component on which the device body 11 is placed or fixed. In such a turntable 30, the rotating part 32 has a built-in rotating mechanism 34 When the rotating shaft is driven, 35 The table body 33 rotates relative to the support base 31 with the rotation center as the pivot point. This changes the orientation of the ultraviolet sensor 13 and the imaging device 14, i.e., the detection range and imaging range. The support base 31 of the turntable 30 may be provided with a marker indicating the direction of the priority monitoring position relative to the device body 11. This allows the worker to set up the flame detection device 10 with the position they want to monitor indicated. The rotation angle of the rotating part 32 relative to the support base 31 may also be selectable by the worker.

[0015] Rotating machine 34 A power line 36 is connected to it. The power line 36 is routed from the side of the rotating part 32 to the outside and connected to a power terminal 37 provided on the side of the housing 12. Rotating machine 34 Power is supplied to it from the battery 21 via the power line 36.

[0016] Also, a rotating machine 34 is connected to a control line 38. The control line 38 is routed from the side surface of the rotating part 32 to the outside and connected to a control terminal 39 provided on the side surface part of the housing 12. The rotating machine 34 receives various control signals from the processing device 22 through the control line 38.

[0017] (Electrical configuration) As shown in FIG. 2, when a power switch (not shown) of the processing device 22 is turned on, the processing device 22 executes a startup process. In the startup process, the processing device 22 starts supplying power to various devices from the battery 21 and checks whether communication through the communication device 23 is possible. When the processing device 22 confirms that communication through the communication device 23 is possible, it normally lights the lamp 26. Note that when there is a problem with communication through the communication device 23, the processing device 22 lights the lamp 26 in a pattern indicating a communication failure.

[0018] When it is confirmed that communication through the communication device 23 is possible, the processing device 22 executes a monitoring process. In the monitoring process, the processing device 22 activates the ultraviolet sensor 13 and the imaging device 14. Also, the processing device 22 activates the rotating machine 34 to rotate the rotating part 32 and the table body 33 with respect to the support base 31. Thereby, the apparatus main body 11 monitors the presence or absence of a flame in the vicinity of the installation location. Then, when a flame detection signal is input from the ultraviolet sensor 13, the processing device 22 executes a detection process.

[0019] In the detection process, the processing device 22 stops the rotating machine 34 at a position where the detected flame is included in the imaging range of the imaging device 14. And while the flame is being detected by the ultraviolet sensor 13, the processing device 22 keeps the rotating machine 34The device remains stopped and the alarm buzzer 24 is activated. The processing unit 22 also notifies the management device 50 via the communication device 23 that a flame has been detected by the flame detection device 10 using a predetermined notification method. The notification method can be any method that allows the management device 50 to understand that a flame has been detected by the flame detection device 10. For example, the processing unit 22 notifies of the flame detection by sending an email via the internet. Alternatively, for example, the processing unit 22 notifies of the flame detection by directly sending a flame detection signal to the management device 50. Upon receiving the notification, the management device 50 executes a warning process. In the warning process, the device warns that the flame detection device 10 has detected a flame using voice, a warning sound, a screen display, etc.

[0020] Furthermore, during the detection process, the processing unit 22 enables the management device 50 to view the images captured by the imaging device 14 in real time. For example, if the notification method is email transmission, the processing unit 22 uploads the images captured by the imaging device 14 to a storage unit assigned a predetermined address (URL: Uniform Resource Locator) on the Internet, and then includes the URL in the body of the email before sending it. Alternatively, if the notification method is transmission of a flame detection signal, the processing unit 22 transmits the images captured by the imaging device 14 to the management device 50. After notification to the management device 50, the processing unit 22 operates the rotating machine based on the operation signal input from the management device 50 via the communication device 23. 34 It is preferable that the drive of the device can be controlled.

[0021] The operation and effects of this embodiment will now be described. (1) Workers who perform open flame work install the flame detection device 10 so that the actual work site where the open flame work was performed is included within the detection range of the ultraviolet sensor 13. This makes it easier for safety officers patrolling the construction site to identify the actual site where open flame work was performed. In addition, since the images captured by the imaging device 14 can be viewed on the management device 50, safety officers can confirm whether or not flames are actually present based on the images from the imaging device 14. As a result, the time required for checking residual fires can be reduced.

[0022] (2) The flame detection device 10 has a main body 11 supported by a turntable 30. This allows the main body 11 to detect flames not only at the location where the fire work was performed, but also in the vicinity of the installation location.

[0023] (3) The turntable 30 is configured so that the table body 33 can rotate 360° relative to the support base 31. This expands the detection range of the device body 11.

[0024] (4) When the flame detection device 10 detects a flame, the turning machine of the turntable 30 34 It is configured to stop. This allows the control device 50 to check the current status at the location where the flame was detected. In addition, since the location where the flame was detected is in the front direction of the device body 11, it becomes easier for firefighters who rush to the installation site of the flame detection device 10 to understand the location where the flame was detected.

[0025] (5) The housing 12 of the device body 11 is provided with a handle 16. This makes it easy to carry the device body 11. (6) The main body of the device 11 is configured to sound an alarm buzzer 24 when it detects a flame. This reduces the time required for a worker to identify the location of the flame detection device 10 when they go to the installation site.

[0026] This embodiment can be implemented with the following modifications. This embodiment and the following modifications can be combined with each other to the extent that they do not contradict each other technically. In the above embodiment, the flame detection device 10 detected the flame based on the detection result of the ultraviolet sensor 13. However, it is not limited to this, and multiple sensors may be used in combination.

[0027] For example, as shown in Figure 3, the processing unit 22 may detect a flame based on the detection result of the ultraviolet sensor 13 and the detection result of the infrared sensor 41, which includes the detection range of the ultraviolet sensor 13 within its detection range. With this configuration, if the ultraviolet sensor 13 mistakenly detects a mercury lamp or the like as a flame, it is possible to determine that this is a false detection from the detection result of the infrared sensor 41. As a result, the accuracy of flame detection can be improved. Furthermore, abnormalities are not limited to the generation of ultraviolet light. For example, a water leak sensor could be used to detect water leaks (abnormalities) in the surrounding area. With such a configuration, it is possible to detect not only flames but also water leaks.

[0028] Furthermore, the processing unit 22 may detect flames based on the detection results from the ultraviolet sensor 13 and the results of image processing of the images captured by the imaging device 14. In the above embodiment, the flame detection device 10 does not necessarily have to be equipped with a turntable 30, which is a range changing device. That is, the device body 11 may be installed as is. Furthermore, the range changing device only needs to be able to change the detection range of the ultraviolet sensor 13 and the imaging range of the imaging device 14. For example, the range changing device may be a device that moves the device body 11 back and forth in a straight line or curved line.

[0029] In the above embodiment, the installation location of the flame detection device 10 may be registered by a worker. In this case, the flame detection device 10 has a touch panel display panel, and the processing device 22 stores drawing data of the construction site. When a predetermined operation is performed by a worker, the processing device 22 displays the drawing data of the construction site on the display panel. The worker registers the installation location by touching the display panel on which the drawing data is displayed. The processing device 22 transmits the registered installation location to the management device 50 via the communication device 23.

[0030] In the above embodiment, the processing unit 22 performed detection processing when a flame detection signal was input from the ultraviolet sensor 13. However, the processing unit 22 may also perform detection processing when the flame detection signal continues to be input for a predetermined time. This predetermined time is determined according to the rotation speed of the turntable 30 and the difference between the detection range of the ultraviolet sensor 13 and the imaging range of the imaging device 14. Specifically, the predetermined time is set to the time when the flame detected by the ultraviolet sensor 13 is located within the imaging range of the imaging device 14. Then, after detecting ultraviolet light and after the predetermined time, the range changing device is stopped. This makes it possible to include the source of ultraviolet light within the imaging range even when the detection range of the ultraviolet sensor 13 is wider than the imaging range of the imaging device 14.

[0031] In the above embodiment, the ultraviolet sensor 13 and the imaging device 14 are attached to the housing 12 on the main body 11 of the device. However, as shown in Figure 4, a pole 55 extending in the vertical direction may be supported by the main body 11, and the ultraviolet sensor 13 and the imaging device 14 may be attached to the tip of the pole 55. It is preferable that this pole 55 is extendable. This makes the detection range of the ultraviolet sensor 13 and the imaging range of the imaging device 14 less susceptible to the influence of the arrangement of materials at the work site.

[0032] The technical concepts that can be understood from the above embodiments and modified examples are described below. (Note 1) The processing device stops the range changing device so that the detection position of the sensor is located within the imaging range of the imaging device.

[0033] As a result, the center of the image captured by the imaging device becomes the detection position of the sensor, making it easier to identify the area that needs to be checked in the captured image. (Note 2) The detection device further includes an alarm buzzer, The processing device drives the alarm buzzer during the detection process.

[0034] This reduces the time required for workers to identify the location of the detection device once they arrive at the installation site. [Explanation of symbols]

[0035] 10...Flame detection device, 11...Device body, 12...Housing, 13...Ultraviolet sensor, 14...Imaging device, 15...Legs, 16...Handle, 21...Battery, 22...Processing device, 23...Communication device, 24...Alarm buzzer, 25...Antenna, 26...Lamp, 30...Turntable, 31...Support base, 32...Rotating part, 33...Table body, 34... Rotating machine ,35… Rotation axis 36...Power line, 37...Power terminal, 38...Control line, 39...Control terminal, 41...Infrared sensor, 50...Management device, 55...Pole.

Claims

1. A sensor that detects anomalies within the detection range, An imaging device that includes the detection range in its imaging range, A range changing device that can change the orientation of the sensor and the imaging device, A processing unit that performs a detection process based on the detection result of the sensor to stop the range changing device and make the captured image by the imaging device viewable on the management device, The device comprises a main body having the sensor, the imaging device, and the processing device, and a battery that supplies power to the sensor, the imaging device, the range changing device, and the processing device, The range changing device is a turntable that rotates the main body of the device, The device body has a carrying handle on the upper surface of the housing of the device body, The aforementioned turntable is The support base that constitutes the base of the turntable, A rotating part rotatably connected to the support base, It has a table body fixed to the rotating part and supporting the main body of the device, The support base is provided with a marker indicating the direction of the priority monitoring position. Detection device.

2. The main body of the device further comprises a touch panel type display panel, The battery is configured to supply power to the display panel. The processing device stores drawing data of the construction site, and is configured to transmit data indicating the installation location of the detection device to the management device when the installation location of the detection device is registered in the drawing data through an operation on the display panel. The detection device according to claim 1.

3. The sensor includes an ultraviolet sensor that detects the generation of ultraviolet light within the detection range. The processing device detects a flame based on the detection result of the ultraviolet sensor. The detection device according to claim 1 or 2.

Images