CN211785898U - Ultraviolet warning thermal infrared imager - Google Patents
Ultraviolet warning thermal infrared imager Download PDFInfo
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- CN211785898U CN211785898U CN202020059140.7U CN202020059140U CN211785898U CN 211785898 U CN211785898 U CN 211785898U CN 202020059140 U CN202020059140 U CN 202020059140U CN 211785898 U CN211785898 U CN 211785898U
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Abstract
The utility model discloses an ultraviolet warning thermal infrared imager, which comprises a thermal infrared image module, an ultraviolet detection module, an image processing module, a storage module, a display module and a control module; the infrared thermal image module and the ultraviolet detection module are arranged at the front part of the machine body, the infrared thermal image module outputs thermal image data of a shot object, the image processing module inputs the thermal image data of the shot object and outputs image data which can be used for displaying or recording; the ultraviolet detection module outputs the detected photon number; the storage module is used for storing data output by the infrared thermal image module, the ultraviolet detection module and/or the image processing module; the display module is used for displaying the image data and prompt information whether the detected photon number or the identification photon number exceeds a set alarm threshold value. The utility model discloses can put the phenomenon to the temperature and the office of being surveyed electrical equipment and measure simultaneously, can be used to the line facility defect, especially the insulator pollution flashover condition is patrolled and examined fast, can effectively promote the efficiency that transmission line equipment detected.
Description
Technical Field
The utility model relates to an infrared thermal imager is reported an emergency and asked for help or increased vigilance to ultraviolet belongs to ultraviolet ray and infrared light detection area, can be used for infrared temperature measurement and surface discharge detection field to power transmission equipment.
Background
High-voltage transmission line equipment can generate partial discharge due to various reasons such as environment, aging, quality and the like, and can generate a luminescence phenomenon in addition to the transfer of charges and the loss of electric energy in the partial discharge process, wherein generated light radiation is mainly generated by the process of returning particles from an excitation state to a ground state or a low energy level and the process of compounding positive ions, negative ions or positive ions and electrons. When the insulation defect occurs in the power equipment, different forms of discharge such as corona, flashover or electric arc can be generated, and the spectrum of the discharge is mostly concentrated in an ultraviolet band.
The surfaces of various insulators used in a high-voltage transmission line are exposed to the atmosphere all the year round, so that the insulators are polluted by industrial dirt and natural dirt in operation, dirt attachments can be formed on the surfaces of the insulators, under the rainy and foggy weather, the dirt on the surfaces of the insulators absorbs moisture, and is dissolved and ionized by electrolyte in a dirt layer, so that the conductance of the dirt layer is increased, the surface leakage current is greatly increased, a partial discharge phenomenon is generated, even a partial electric arc is generated, and the temperature rise phenomenon of a discharge part is caused to occur in different degrees.
The existing market has a measuring instrument integrating ultraviolet imaging and infrared imaging, which is mainly used for positioning, the equipment has a complex structure and a large and heavy volume, and a time-sharing measuring mode is adopted during detection, so that the purpose of rapid and simultaneous detection cannot be realized. The equipment is more suitable for detecting electrical equipment of a transformer substation and is difficult to be suitable for quick inspection of high-voltage transmission lines.
The detection of high-voltage transmission lines in an electric power system needs to simultaneously carry out rapid routing inspection of infrared temperature measurement and ultraviolet partial discharge on all line equipment due to the characteristics of long lines and large quantity of equipment, and accurate positioning and diagnosis are carried out after equipment with infrared and ultraviolet signal abnormality is found out, so that the working efficiency can be greatly improved, and the detection equipment which can be portable and handheld (or carried by an unmanned aerial vehicle) and is light in weight is needed.
SUMMERY OF THE UTILITY MODEL
The purpose of the invention is as follows: an object of the utility model is to provide a can carry out the ultraviolet warning thermal infrared imager that patrols and examines fast that infrared temperature measurement and ultraviolet office put simultaneously, combine together ultraviolet ray measurement technique and thermal infrared image measurement technique, measure the intensity (photon number) of the produced ultraviolet ray of partial discharge, when carrying out infrared temperature measurement, whether there is the condition of surface partial discharge to the testee and measure, realize carrying out the purpose of short-term test to high voltage power line equipment.
The technical scheme is as follows: in order to achieve the above purpose, the utility model adopts the following technical scheme:
an ultraviolet alarm thermal infrared imager comprises a thermal infrared image module, an ultraviolet detection module, an image processing module, a storage module, a display module and a control module; the infrared thermal image module and the ultraviolet detection module are arranged at the front part of the body, the infrared thermal image module outputs thermal image data of a shot object to the image processing module and/or the storage module, the image processing module inputs the thermal image data of the shot object acquired from the infrared thermal image module or the storage module, and outputs image data which can be used for displaying or recording to the display module and/or the storage module; the ultraviolet detection module outputs the detected photon number to the display module and/or the storage module; the storage module is used for storing data output by the infrared thermal image module, the ultraviolet detection module and/or the image processing module; the display module is used for displaying the image data output by the image processing module or the image data acquired from the storage module; and the number of photons output by the ultraviolet detection module, or the number of photons acquired from the storage module, or prompt information for indicating whether the number of photons exceeds a set alarm threshold value.
Preferably, the display module is arranged at the rear part of the machine body; or the communication module is arranged separately from the machine body and connected with the machine body through the communication module.
Preferably, the ultraviolet warning thermal infrared imager further comprises an operation module, and the operation module is connected with the control module; the operation module is realized by a key or a touch screen of a display module.
Preferably, the optical components of the infrared thermal image module and the ultraviolet detection module are arranged up and down.
Preferably, the infrared thermal image module adopts an uncooled focal plane thermal image module.
Preferably, the ultraviolet detection module adopts an all-solid-state semiconductor ultraviolet detector to receive ultraviolet light with the wavelength of 240nm-280 nm.
Preferably, the image processing module and the control module are integrated on the same circuit board or two different circuit boards and are located inside the body shell.
Preferably, the body of the ultraviolet warning thermal infrared imager is handheld or is provided with a support for carrying an unmanned aerial vehicle.
Has the advantages that: the utility model discloses combine together ultraviolet ray measurement technique and infrared thermal imagery measurement technique, abandon the measuring method of ultraviolet formation of image, only measure the intensity (photon number) of the produced ultraviolet ray of partial discharge, reduced the required device of ultraviolet formation of image, effectively reduce the volume and the weight of instrument, can regard as handheld instrument, or carry on portable equipment such as unmanned aerial vehicle, robot and patrol and examine. The utility model discloses an infrared thermal imaging system is reported an emergency and asked for help or increased vigilance to ultraviolet, when carrying out infrared temperature measurement, measures the measuring object on whether have the condition of surface partial discharge, has realized carrying out the purpose of short-term test to high voltage power line equipment. Use the utility model discloses an infrared thermal imaging system is reported an emergency and asked for help or increased vigilance to ultraviolet warning carries out the preliminary investigation and pinpoints and diagnose again after finding out the equipment that has infrared and ultraviolet signal anomaly, can improve the efficiency of work greatly.
Drawings
Fig. 1 is a working principle diagram of the embodiment of the present invention.
Fig. 2 is a schematic diagram of a front structure of an embodiment of the present invention.
Fig. 3 is a schematic diagram of a rear structure of an embodiment of the present invention.
Fig. 4 is a schematic diagram of an internal structure of an embodiment of the present invention.
Detailed Description
The present invention will be further explained with reference to specific examples, which are to be understood as illustrative only and not as limiting the scope of the invention, and modifications to the various equivalent forms of the invention, which may occur to those skilled in the art upon reading the present invention, fall within the scope of the appended claims.
As shown in fig. 1, the embodiment of the utility model discloses an ultraviolet warning thermal infrared imager mainly includes thermal infrared image module, ultraviolet detection module, image processing module, storage module (can include temporary storage, storage card, flash memory in this embodiment), display module, communication module, operating module, control module etc. wherein control module is connected with above-mentioned each part through control and data bus. The infrared thermal image module collects and outputs thermal image data of a shot object and the image processing module and/or the storage module, the image processing module inputs the thermal image data of the shot object obtained from the infrared thermal image module or the storage module and outputs image data which can be used for displaying or recording to the display module and/or the storage module; the ultraviolet detection module outputs the detected photon number to the display module and/or the storage module; the storage module is used for storing data output by the infrared thermal image module, the ultraviolet detection module and/or the image processing module; the display module is used for displaying the image data output by the image processing module or the image data acquired from the storage module; and the number of photons output by the ultraviolet detection module, or the number of photons acquired from the storage module, or prompt information for indicating whether the number of photons exceeds a set alarm threshold value.
The infrared thermal image module is used for shooting a shot object to obtain thermal image data, and comprises an optical component, an infrared detector, a signal preprocessing circuit and the like. The optical component is composed of an infrared optical lens for focusing the received infrared radiation to the infrared detector. The infrared detector is a refrigeration or non-refrigeration type infrared focal plane detector, and converts infrared radiation passing through the optical component into an electric signal. The signal preprocessing circuit carries out signal processing such as sampling and automatic gain control on signals read out from the infrared detector at a specified period, the signals are converted into digital thermal image data through the AD conversion circuit, and the thermal image data can be temporarily stored in the temporary storage component.
The lens of the ultraviolet detection module adopts an ultraviolet transmission lens, an all-solid-state semiconductor ultraviolet detector is adopted to collect ultraviolet light with the wavelength of 240nm-280nm in an all-day blind waveband, collected data are preprocessed and read by the control module and then sent to the display module to be displayed. The ultraviolet detected photon data may be stored in a temporary storage unit or in a memory card for later analysis, such as displaying a history curve, determining an alarm threshold, etc. The display module can also carry out alarm prompt according to the alarm threshold set by the user through the operation module, and carry out alarm prompt when the detected photon number exceeds the set alarm threshold, and the alarm can be realized in the form of images, sounds or light.
The image processing module is used for processing the thermal image data obtained by the infrared thermal image module, the processing of the image processing module can be correction, interpolation, pseudo color, synthesis, compression, decompression and the like, and the input data is converted to obtain data suitable for display, recording and the like. The data input by the image processing module can be directly acquired from the infrared thermal image module, or acquired from a temporary storage component or other storage components for storing acquired thermal image data, wherein the related specific software program can be compiled according to the use instruction of a corresponding device or realized by referring to the existing image processing software program or algorithm, the hardware of the image processing module can be realized by a programmable FPGA, a DSP or other microprocessors, or a special image processing chip.
The storage module can be used for storing original data obtained by shooting through the infrared thermal imaging module, original data output by the ultraviolet detection module, image data which is processed by the image processing module and can be used for displaying or recording, parameter configuration and historical record data. The storage module in this embodiment may include temporary storage, memory card, flash memory.
The temporary storage, such as volatile memories like RAM, DRAM, etc., serves as a buffer memory for temporarily storing thermal image data output by the infrared thermal image module, and simultaneously, serves as a working memory for the image processing module and the control module, and temporarily stores data processed by the image processing module and the control module. And the storage card can be freely detachably installed in the clamping groove of the thermal infrared imager main body and records thermal image data and other data according to the control of the control module. The built-in memory is, for example, a flash memory in which a program for control and various data used in each part of control are stored. Temporary storage, memory cards, flash memory may also be combined into one storage medium.
The display module can be used for displaying the thermal image data processed by the image processing module or displaying the image data stored in the storage module, and can also display prompt information whether the photon number or the identification photon number exceeds a set alarm threshold value. The display module can be various displays, for example, including a display driving circuit and a liquid crystal display, and the display driving circuit drives the liquid crystal display under the control of the control module. The display module can also be other display devices connected with the ultraviolet alarm thermal infrared imager, and the ultraviolet alarm thermal infrared imager can be provided with no display device in the electrical structure.
The communication module is an interface for connecting or communicating the ultraviolet warning thermal infrared imager with external equipment such as an external computer, a storage device, a display device and the like according to wireless or wired communication specifications such as USB, 1394, a network, WIFI \4G \5G and the like.
The operation module is used for a user to give an instruction to the ultraviolet warning thermal infrared imager or input set information, and the operation module is composed of various keys and can also be operated by adopting a touch screen and the like.
The control module is responsible for the overall control of the ultraviolet warning thermal infrared imager, and comprises instructions, data transmission, interrupt processing and the like, and business customization programs such as automatic fault positioning, detection reminding and the like can also be loaded. The transmission and reading of basic data or instructions related to the control module and the interaction and control with other modules such as a display, a key, a memory and the like are conventional technologies, and a person skilled in the art can write related control programs according to the functions and the interaction of the modules by combining the conventional technologies. The hardware implementation of the control module may also use a programmable FPGA, DSP or other microprocessor. The control module and the image processing module can be realized in one chip, can also be realized in different chips, can be integrated on one circuit board, or can be divided into different circuit boards according to the structural design requirement.
As shown in fig. 2-4, the ultraviolet warning thermal infrared imager is a handheld thermal infrared imager, an optical component (thermal infrared imaging lens 1) of the thermal infrared imaging module and an optical component (ultraviolet transmission lens 2) of the ultraviolet detection module 2 are respectively disposed at the front of the infrared imager, the ultraviolet transmission lens 2 may be disposed at the upper portion or the lower portion of the thermal infrared imaging lens 1, and the optical axes of the two lenses and the central line of the infrared imager in the vertical direction are preferably on the same plane, so that the central lines of the images to be photographed are coincident, and the images are analyzed and processed at the later stage. Other components of the infrared thermal image module and the ultraviolet detection module, the image processing module 4, the control module 5 and the like are positioned in the machine body shell, and the display module 3 at the rear part can be used for displaying and touch operation. According to the handheld ultraviolet alarm thermal infrared imager, an ultraviolet light signal and a thermal infrared image signal are respectively input through an ultraviolet transmission lens and a thermal infrared image lens, data acquisition and preprocessing are carried out through different circuits, and display or switching on a display screen is completed through a control module. In this embodiment, the infrared thermal imaging module adopts uncooled focal plane infrared thermal imaging module, for example, the Xcore LT core of an ai rui detector, the module of a french ULIS UL04371-042 detector, the ultraviolet detection module detector adopts zk1901 type all-solid-state semiconductor ultraviolet detector, the image processing module adopts DSP TMS3206452 chip to realize, the control module adopts STM32H750 chip, the display module adopts STM32H750 chip to control and drive. The electrical connection of each device can be realized according to the description of the product, which is not described herein.
The utility model discloses an infrared thermal imager is reported an emergency and asked for help or increased vigilance to ultraviolet can be measured simultaneously to the temperature and the partial discharge phenomenon of being surveyed electrical equipment. The high-voltage power transmission line monitoring system can be designed into handheld or fixed installation type monitoring equipment or inspection equipment carried by an unmanned aerial vehicle and a robot, and is used for monitoring a high-voltage power transmission line or quickly inspecting the unmanned aerial vehicle. The utility model discloses can be used to the line facility defect, especially the dirty sudden strain of a muscle condition of insulator is patrolled and examined fast, can effectively promote the efficiency that transmission line equipment detected.
Claims (8)
1. An ultraviolet alarm thermal infrared imager comprises a thermal infrared image module, an image processing module, a storage module, a display module and a control module; the infrared thermal image module and the ultraviolet detection module are arranged at the front part of the machine body, the infrared thermal image module outputs thermal image data of a shot object to the image processing module and/or the storage module, the image processing module inputs the thermal image data of the shot object acquired from the infrared thermal image module or the storage module, and outputs image data which can be used for displaying or recording to the display module and/or the storage module; the ultraviolet detection module outputs the detected photon number to the display module and/or the storage module; the storage module is used for storing data output by the infrared thermal image module, the ultraviolet detection module and/or the image processing module; the display module is used for displaying the image data output by the image processing module or the image data acquired from the storage module; and the number of photons output by the ultraviolet detection module, or the number of photons acquired from the storage module, or prompt information for indicating whether the number of photons exceeds a set alarm threshold value.
2. The ultraviolet alarm thermal infrared imager of claim 1, wherein the display module is disposed at a rear portion of the body; or the communication module is arranged separately from the machine body and connected with the machine body through the communication module.
3. The ultraviolet-warning thermal infrared imager of claim 1, further comprising an operating module, the operating module being connected to the control module; the operation module is realized by a key or a touch screen of a display module.
4. The ultraviolet warning thermal infrared imager of claim 1, wherein optical components of the thermal infrared imager module and the ultraviolet detection module are disposed one above the other.
5. The ultraviolet alarm thermal infrared imager of claim 1, wherein the thermal infrared imager module is an uncooled focal plane thermal imager module.
6. The ultraviolet warning thermal infrared imager of claim 1, wherein the ultraviolet detection module employs an all-solid-state semiconductor ultraviolet detector to receive ultraviolet light with a wavelength in a band of 240nm to 280 nm.
7. The ultraviolet-warning thermal infrared imager of claim 1, wherein the image processing module and the control module are integrated on the same circuit board or two different circuit boards and are located inside the body housing.
8. The ultraviolet-warning thermal infrared imager of claim 1, wherein the body is hand-held or provided with a support carrying an unmanned aerial vehicle or a mobile robot.
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| CN202020059140.7U CN211785898U (en) | 2020-01-13 | 2020-01-13 | Ultraviolet warning thermal infrared imager |
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| CN202020059140.7U CN211785898U (en) | 2020-01-13 | 2020-01-13 | Ultraviolet warning thermal infrared imager |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112858855A (en) * | 2021-02-23 | 2021-05-28 | 海南电网有限责任公司定安供电局 | Multispectral abnormal temperature partial discharge fault comprehensive testing device |
| CN113418616A (en) * | 2020-12-22 | 2021-09-21 | 深圳市奕承达科技有限公司 | Temperature measuring circuit and temperature measuring method of forehead temperature gun |
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2020
- 2020-01-13 CN CN202020059140.7U patent/CN211785898U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113418616A (en) * | 2020-12-22 | 2021-09-21 | 深圳市奕承达科技有限公司 | Temperature measuring circuit and temperature measuring method of forehead temperature gun |
| CN113418616B (en) * | 2020-12-22 | 2022-12-09 | 深圳市奕承达科技有限公司 | Temperature measuring circuit and temperature measuring method of forehead temperature gun |
| CN112858855A (en) * | 2021-02-23 | 2021-05-28 | 海南电网有限责任公司定安供电局 | Multispectral abnormal temperature partial discharge fault comprehensive testing device |
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