JP3210706U - Temperature monitoring device for electric power equipment - Google Patents

Abstract

The present invention provides a monitoring device for a power device that monitors the occurrence of abnormal temperature due to aging deterioration of the power device and reduces the load on an inspection worker to improve the efficiency of the inspection operation. A temperature monitoring device (16) includes a visible image capturing device (24) for photographing a monitoring target, an infrared light receiving device (28) for detecting the temperature of the monitoring target, and a lamp (58) that illuminates the monitoring target region during photographing. . The area image generation device 40, the composite output control device 46, the reception device 48, the transmission device 50, the timer 60, the alarm device 62, and the storage device 44 are accommodated therein. The storage device 44 stores monitoring image data 22, infrared measurement data 26, a colored region, a composite output image 42, and the like. The inspection operator can visit the power facility and check the status of the device to be monitored using the portable terminal device. [Selection] Figure 1

Description

  The present invention relates to a temperature monitoring device that monitors the occurrence of abnormal temperatures due to aging degradation of power equipment.

  There is a risk that electric power equipment may cause a fire accident due to abnormal heat generation due to deterioration over time. For this reason, periodic inspections are performed, but for accurate and reliable inspections, it is necessary to monitor the state for a certain period of time and analyze the results. However, there are various large and small devices such as switchboards and cubicles in power facilities, and the work of opening and inspecting these devices in turn is very time consuming and laborious. On the other hand, various systems have been introduced in which temperature sensors and the like are attached to all devices that require monitoring and are continuously monitored using a network (Patent Document 1) (Patent Document 2) (Patent Document 3).

JP 2006-99791 A Japanese Patent Laid-Open No. 2006-38277 Japanese Patent Laid-Open No. 10-185980

The known prior art has the following problems to be solved.
A system in which monitoring devices are attached to all monitoring targets has a problem that the total cost is high. In particular, when monitoring abnormal temperature rise of equipment caused by aging, newly installed equipment can be excluded from monitoring. Also, monitoring of equipment that has been determined to be normal after inspection and maintenance can be omitted for a certain period of time. It is uneconomical to attach a monitoring device to all of these devices, and many devices are inspected by an inspection operator and using a measuring instrument manually. It is an object of the present invention to provide a monitoring device for electric power equipment that reduces the load on the inspection worker and increases the efficiency of the inspection operation.

  The following configurations are means for solving the above-described problems.

<Configuration 1>
A device for determining aging degradation of electric power equipment, comprising a support device that is detachably attached in the vicinity of the electric power equipment,
A visible image capturing device that captures the monitoring target area of the power device and acquires monitoring image data;
An infrared receiving device for acquiring infrared measurement data generated by the monitoring target in the monitoring target area;
The area to be monitored is divided into a matrix, and an area display image with an identifier assigned to each section is generated. The infrared intensity for each section is read from the data at the corresponding position of the infrared measurement data, and the corresponding correspondence is determined in advance. A region image generation device for generating a region display image in which the above-described section is colored;
A combined output control device that generates a combined output image by combining the monitoring image data and the region display image and stores the combined output image in a storage device;
A receiving device for receiving the transmission request for the composite output image by wireless communication;
A transmission device that reads the composite output image from the storage device and wirelessly transmits it to a transmission request source;
A lamp that illuminates the monitored area;
A temperature monitoring device for a power device, comprising: a timer for operating the lamp, the visible image capturing device, the infrared light receiving device, the region image generating device, and the composite output control device at predetermined time intervals.

<Configuration 2>
The temperature monitoring device for a power device according to Configuration 1, further comprising an alarm device that activates an alarm display when the detected temperature in any of the categories exceeds a threshold value for each monitoring target area.

<Configuration 3>
3. The configuration 1 or 2, wherein the reception device and the transmission device have a function of performing a peer-to-peer communication without going through a LAN and transmitting a composite output image to a portable terminal device carried by an inspection operator. Power equipment temperature monitoring device.

<Effect of Configuration 1>
The device of the present invention can be easily attached to and detached from a power device. In other words, it can be attached when necessary, and after observing the required number of times at regular intervals using a timer, it can be removed and used for another device.
The monitoring target area is divided, a combined output image colored so as to indicate the temperature of the section is generated for each section, and the temperature distribution of the monitoring target area can be listed. Since the visible image of the monitoring target area is synthesized, it can be visually recognized at a glance which part of the power device is generating heat.
If this device is housed in a case of a power device and the composite output image is read out by wireless communication with a smart phone or the like, for example, each device can be inspected in a short time at an arbitrary timing. Can do.
<Effect of Configuration 2>
When the detected temperature in any of the categories exceeds the threshold, a warning is displayed in the composite image, or an alarm indication such as the lighting of an external lamp is clarified, so that the normal equipment and the equipment to be repaired are clearly identified. It can be easily identified and can be efficiently maintained.
<Effect of Configuration 3>
When the temperature monitoring device is housed in a metal case or the like that houses power equipment, it may be difficult to always connect to the network. If a portable wireless LAN router is brought close to the case, communication by weak leaked radio waves becomes possible. With this function, the composite output image can be taken out without opening the lid of the case of the power device.

(A) is the front view and internal functional block diagram of the temperature monitoring apparatus of the electric power apparatus of this invention, (b) is a perspective view which shows the state which opened the door of the case 14 of the electric power apparatus 12. FIG. It is explanatory drawing of the monitoring image data 22 obtained by image | photographing the monitoring object area | region. FIG. 3 is an explanatory diagram of an area display image 34 in which the monitoring target area 20 is divided into a matrix and given identifiers 32. FIG. 4 is an explanatory diagram of a composite output image 42 that is obtained by the inspection operator and confirms the state of the device. FIG. 5 is an explanatory diagram showing how to use the temperature monitoring device 16 of the present invention.

  The device of the present invention is a device for detecting the occurrence of abnormal temperature due to aging of power equipment. An inspection worker goes around the electric power equipment and uses the portable terminal device so that the state of the device to be monitored can be confirmed in a very short time. Thereby, the efficiency of the inspection work for preventing the fire accident of the electric power equipment by overheating beforehand can be aimed at. Hereinafter, embodiments of the present invention will be described in detail for each example.

  FIG. 1 (a) shows a front view and an internal functional block diagram of a temperature monitoring device for a power device according to the present invention. FIG. 1B is a perspective view showing a state in which the door of the case 14 of the power device 12 is opened.

  As shown in FIG.1 (b), the temperature monitoring apparatus 16 of this invention is attached to the vicinity of the electric power apparatus 12, for example, the door of the case 14 of a switchboard, etc. so that attachment or detachment is possible. The support device 18 of the temperature monitoring device 16 may be a screw-type device or a structure that can be easily attached and detached, such as a magnet. In addition, when it is simply placed on a table, it may be a flat bottom plate or a leg integrated with the main body.

  As shown on the left side of FIG. 1A, the temperature monitoring device 16 illuminates the monitoring target region at the time of shooting, the visible image pickup device 24 that images the monitoring target, the infrared light receiving device 28 that detects the temperature of the monitoring target. And a lamp 58. The area image generation device 40, the composite output control device 46, the reception device 48, the transmission device 50, the timer 60, the alarm device 62, and the storage device 44 are accommodated therein. The storage device 44 stores monitoring image data 22, infrared measurement data 26, a colored region 38, a composite output image 42, and the like.

FIG. 2 is an explanatory diagram of the monitoring image data 22 obtained by photographing the monitoring target area.
The visible image capturing device 24 is a device that captures the monitoring target area 20 (FIG. 1B) of the power device 12 and acquires the monitoring image data 22. This may be a very common camera and takes a picture of the monitored area. The image is the monitoring image data 22 as shown in FIG.

  The infrared light receiver 28 is a device that acquires infrared measurement data 26 generated by the monitoring target in the monitoring target area 20. This can be realized by a known infrared array sensor or the like. It is a device that can detect the intensity distribution of infrared rays (heat rays) emitted from the monitored region.

FIG. 3 is an explanatory diagram of an area display image 34 in which the monitoring target area 20 is divided into a matrix and given identifiers 32.
As shown in FIG. 3, the area image generation device 40 divides the monitoring target area 20 into a matrix and generates an area display image 34 in which an identifier 32 is assigned to each division 30. In the example shown in FIG. 3, a total of 48 sections are provided, 12 in the horizontal direction and 4 in the vertical direction. For example, an identifier 32 is attached to each section, for example, “1-1, 1-2,... 12-4”.

FIG. 4 is an explanatory diagram of a composite output image 42 that is obtained by the inspection operator and confirms the state of the device.
As shown in FIG. 4, the infrared light receiver 28 acquires infrared measurement data 26 indicating the infrared intensity of each section at regular intervals. In FIG. 4, “TIME” is the detection time, “TH1”, “TH2”, etc. are the temperatures, “X1”, “Y1”, etc. are the identifiers 32. The area image generation device 40 reads the infrared intensity 36 for each section 30 from the data at the corresponding position of the infrared measurement data 26, and displays the area display image 34 in which the section 30 is colored in a predetermined corresponding color (FIG. 4). Is a device that generates

  For example, it is uncolored in the case of an outside air temperature, is yellow in the case of 40 degrees Celsius or higher, and is colored in red when it exceeds a preset threshold of 55 degrees. The composite output control device 46 is a device that generates a composite output image 42 obtained by combining the monitoring image data 22 and the region display image 34 and stores the composite output image 42 in the storage device 44. From this synthesized output image 42, it can be seen at a glance which part of the monitoring target device generates heat and how much. In addition, it is possible to immediately determine whether it is completely normal, should be monitored carefully in the future, or if any problem has occurred. It is preferable to set the detection temperature range of the sensor from 40 degrees Celsius to 60 degrees Celsius so that the threshold value can be freely set in this temperature range according to the property of the monitored device.

FIG. 5 is an explanatory diagram showing how to use the temperature monitoring device 16 of the present invention.
The inspection worker 52 goes around the power facility with the portable terminal device 56 connected to the wireless LAN router 54. When the temperature monitoring device 16 comes close to the power device 12 that is fixed inside, the portable terminal device 56 is operated to read the composite output image 42.

  The receiving device 48 illustrated in FIG. 1A is a device in which the temperature monitoring device 16 receives a transmission request for the composite output image 42 by wireless communication. The transmission device 50 is a device that reads the composite output image 42 from the storage device 44 and wirelessly transmits it to the transmission request source.

  For example, it is assumed that the reception device 48 and the transmission device 50 are communication devices having a function of connecting to a LAN. If the temperature monitoring device 16 (FIG. 1A) of the temperature monitoring device 16 can be directly connected to the server 64 (FIG. 5) through the LAN, the synthesized output image 42 is automatically converted into the server 64 of the comprehensive management center. Are added to the monitoring data 66.

  However, since power equipment is generally housed in a metal case and communication is shielded, a wired network is required. In that case, the temperature monitoring device 16 must be fixed to all electric power devices to form a known data communication network. In contrast, in the present invention, the temperature monitoring device 16 is cordless because it is used in a state where it can be attached and detached for a certain period of time when temperature monitoring is required.

  Moreover, it is sufficient if the monitoring data of each device can be acquired at the necessary timing when necessary. For example, if it is determined that it is normal after monitoring for one week, it is sufficient to check the change of the state again by performing the same monitoring again after three months, for example. Therefore, the constant connection of the temperature monitoring device 16 to the LAN is not required.

  As shown in FIG. 5, when the inspection operator 52 holds the portable terminal device 56 connected with the wireless LAN router 54 and approaches the temperature monitoring device 16, the receiving device 48 and the transmitting device 50 of the temperature monitoring device 16 are connected to the case 14. It communicates with the wireless LAN router 54 by a weak radio wave leaking through the vent of the air. Thereby, the mobile terminal device 56 can read and display the composite output image 42 without opening the cover of the case 14 of the power device 12.

  In this case, since the trouble of opening the case 14 can be omitted, the work of the inspection worker 52 can be simplified most. However, there are many cases where radio waves are completely shielded by the case 14. In that case, the case 14 is opened and the receiving device 48 and the transmitting device 50 of the temperature monitoring device 16 are connected to the wireless LAN router 54. The receiving device 48 and the transmitting device 50 of the temperature monitoring device 16 may be connected to the wireless LAN router 54.

  Since wireless communication is likely to be hindered by electromagnetic induction in the vicinity of a power device, a configuration in which proximity communication is performed using weak radio waves may be used in this manner. The timer 60 of the temperature monitoring device 16 operates the lamp 58, the visible image capturing device 24, the infrared light receiving device 28, the region image generating device 40, and the composite output control device 46 at predetermined time intervals. It only needs to be activated when necessary. Therefore, depending on the nature of the device, it is possible to see the state every 5 minutes, see the progress every hour, or observe once a day for about a month.

  Moreover, if it is not always connected to the LAN, the discovery of an abnormal temperature rise may be delayed in remote monitoring. However, if the inspection worker 52 makes a patrol at an appropriate timing, the state of the monitored device can be confirmed each time, so it is safe. Further, for example, for each monitoring target region 20 by the temperature monitoring device 16, it is preferable to provide an alarm device 62 that activates an alarm display when the temperature detected in any one of the sections 30 exceeds a threshold value.

  The temperature monitoring device 16 need not necessarily be connected to the LAN. An operation mode called wifi-direct that connects the temperature monitoring device 16 and the portable terminal device in a peer-to-peer manner without using a wireless LAN access point or a wireless router can also be adopted. As a result, it is possible to directly collect the data of the temperature monitoring device 16 without connecting to the LAN with a general-purpose mobile phone possessed by the inspection worker 52.

  When the alarm device 62 indicates that the detected temperature of any of the sections 30 exceeds the threshold value, an alarm is displayed with a large character or the like different from the coloring of the sections in the composite image, so that the inspection operator 52 can be prevented from being overlooked. Further, when the temperature monitoring device 16 is turned on with the lamp 58 externally attached as shown in FIG. 1, the alarm display can be recognized without communication with the temperature monitoring device 16. Thus, the inspection worker 52 can clearly and easily distinguish between normal equipment and equipment to be repaired, and can perform maintenance work efficiently.

  With the above apparatus, the facility cost can be sufficiently reduced as compared with the centralized monitoring of all facilities using a network, and it can be easily applied to existing power equipment. Moreover, since the inspection operator 52 having specialized knowledge can make a round while checking the composite output image and visually checking the state as necessary in detail, it is possible to reliably prevent accidents caused by abnormal temperature rise without a heavy load. It can be prevented.

DESCRIPTION OF SYMBOLS 12 Electric power equipment 14 Case 16 Temperature monitoring apparatus 18 Support apparatus 20 Monitoring object area | region 22 Monitoring image data 24 Visible image imaging device 26 Infrared measurement data 28 Infrared light receiving apparatus 30 Classification 32 Identifier 34 Area display image 36 Infrared intensity 38 Colored area 40 Area image Generation device 42 Composite output image 44 Storage device 46 Composite output control device 48 Reception device 50 Transmission device 52 Inspection worker 54 Wireless LAN router 56 Portable terminal device 58 Lamp 60 Timer 62 Alarm device 64 Server 66 Monitoring data

Claims (3)

A device for determining aging degradation of electric power equipment, comprising a support device that is detachably attached in the vicinity of the electric power equipment,
A visible image capturing device that captures the monitoring target area of the power device and acquires monitoring image data;
An infrared receiving device for acquiring infrared measurement data generated by the monitoring target in the monitoring target area;
The area to be monitored is divided into a matrix, and an area display image with an identifier assigned to each section is generated. The infrared intensity for each section is read from the data at the corresponding position of the infrared measurement data, and the corresponding correspondence is determined in advance. A region image generation device for generating a region display image in which the above-described section is colored;
A combined output control device that generates a combined output image by combining the monitoring image data and the region display image and stores the combined output image in a storage device;
A receiving device for receiving the transmission request for the composite output image by wireless communication;
A transmission device that reads the composite output image from the storage device and wirelessly transmits it to a transmission request source;
A lamp that illuminates the monitored area;
A temperature monitoring device for a power device, comprising: a timer for operating the lamp, the visible image capturing device, the infrared light receiving device, the region image generating device, and the composite output control device at predetermined time intervals.   The temperature monitoring device for a power device according to claim 1, further comprising an alarm device that activates an alarm display when the detected temperature of any of the categories exceeds a threshold value for each monitoring target region.   3. The reception device and the transmission device according to claim 1, wherein the reception device and the transmission device have a function of transmitting a composite output image to a portable terminal device carried by an inspection operator by performing peer-to-peer communication without going through a LAN. The temperature monitoring apparatus of the described electric power equipment.

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