A portable thermal imager system with a laser rangefinder

Abstract

The invention provides a portable thermal imager system with a laser rangefinder, comprising a mobile terminal, a portable thermal image detection head connected to the mobile terminal, and a laser rangefinder connected to the mobile terminal; the portable thermal image detection head comprises a connection port connected to the mobile terminal, and an infrared detector connected to the connection port; the laser rangefinder comprises a wireless communication module connected to the mobile terminal, and a laser rangefinder connected to the wireless communication module; the laser rangefinder is used for detecting the distance of a target object and sending the distance to the mobile terminal through the wireless communication module in an encrypted or unencrypted manner; the mobile terminal is used for sending the distance data detected by the laser rangefinder to the infrared detector; the infrared detector is used for obtaining an infrared image of the target object after initializing and calibrating the infrared detector data according to the received distance data, and sending the obtained infrared image to the mobile terminal through a communication line connected to the connection port.

Description

Technical Field

[0001] The present invention relates to the field of thermal imaging technology, and in particular to a portable thermal imager system with a laser rangefinder. Background Art

[0002] At present, portable thermal imagers are increasingly used in equipment fault detection and diagnosis, material defect detection and evaluation, building energy conservation evaluation, automatic monitoring and testing of industrial production processes, product quality monitoring, and disaster reduction and prevention. In particular, in the process of power inspection in high-voltage transmission towers and substations, in order to improve the efficiency of inspection, inspection personnel need to use portable thermal imagers to measure the temperature of high-voltage transmission towers in order to analyze equipment failure problems. Most of the existing infrared thermal imagers used for power inspection are imported all-in-one machines, and their distance parameters need to be manually input. Manual input not only makes the operation cumbersome but also easily causes human errors that affect the measurement accuracy. In addition, the cost of imported equipment is too high. Using domestically developed equipment to replace imported products will bring economic and social benefits to society and enterprises.

[0003] Therefore, it is necessary to provide an intelligent equipment solution to improve the efficiency of power inspection and the detection accuracy of infrared thermal imagers to obtain more accurate data information. Summary of the invention

[0004] The object of the present invention is to provide a portable thermal imager system with a laser rangefinder, so as to realize the technical effect of intelligentizing electric power inspection equipment and improving the imaging accuracy of the portable thermal imager during the electric power inspection process.

[0005] The embodiment of the present invention provides a portable thermal imager system with a laser rangefinder, comprising a mobile terminal; a portable thermal image detection head connected to the mobile terminal; and a laser rangefinder connected to the mobile terminal; the portable thermal image detection head comprises a connection port connected to the mobile terminal; an infrared detector is connected to the connection port; the laser rangefinder comprises a wireless communication module connected to the mobile terminal; and a laser rangefinder is connected to the wireless communication module; the laser rangefinder is used to detect the distance of a target and send the distance to the mobile terminal through the wireless communication module in an encrypted or unencrypted manner; the mobile terminal is used to send the distance data detected by the laser rangefinder to the infrared detector; the infrared detector is used to obtain an infrared image of the target after initializing and calibrating the infrared detector data based on the received distance data, and send the obtained infrared image to the mobile terminal through a communication line connected to the connection port.

[0006] Furthermore, the mobile terminal includes a control panel, the control panel includes an image capturing module, and the image capturing module is used to capture and save the current infrared image.

[0007] Furthermore, the control panel also includes a temperature warning module, which is used to issue a warning prompt for over-temperature objects in the current infrared image according to a configured temperature threshold.

[0008] Furthermore, the control panel also includes a video recording module, and the video recording module is used to record the detection audio and video.

[0009] Furthermore, the control panel also includes a calibration parameter configuration module, and the calibration parameter configuration module is used to configure the calibration parameters of the target object temperature at each detection distance.

[0010] Furthermore, the control panel also includes a temperature measurement mode selection module; the temperature measurement mode selection module includes a point temperature measurement unit, a line temperature measurement unit and a regional temperature measurement unit; the point temperature measurement unit is used to detect the temperature of a point selected in the infrared image; the line temperature measurement unit is used to detect the highest temperature and the lowest temperature on the marking line selected in the infrared image; the regional temperature measurement unit is used to detect the highest temperature and the lowest temperature within the detection box selected in the infrared image.

[0011] Furthermore, the portable thermal imaging detection head also includes a first DC / DC converter, an input end of the first DC / DC converter is connected to the connection port; and an output end of the first DC / DC converter is connected to the infrared detector.

[0012] Furthermore, the laser ranging device also includes a second DC / DC converter; a power supply module connected to the second DC / DC converter; and an output end of the second DC / DC converter is respectively connected to the laser rangefinder and the wireless communication module.

[0013] Furthermore, the mobile terminal is a mobile phone or a tablet computer.

[0014] The beneficial effects that can be achieved by the present invention are: the portable thermal imager system provided by the present invention directly connects the portable thermal imaging detection head to the mobile terminal, and after the distance and infrared image detected by the portable thermal imaging detection head are processed by the mobile terminal, the calibrated infrared image is displayed on the mobile terminal, which improves the accuracy of the infrared image during the power inspection process and is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments of the present invention are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 A schematic diagram of the topological structure of a portable thermal imager system provided by an embodiment of the present invention;

[0017] Figure 2 A schematic diagram of a mobile terminal topology structure provided by an embodiment of the present invention.

[0018] Icons: 10-portable thermal imager system; 100-mobile terminal; 110-control panel; 111-image capture module; 112-temperature warning module; 113-video recording module; 114-calibration parameter configuration module; 115-temperature measurement mode selection module; 200-portable thermal imaging detection head; 210-connection port; 220-first DC / DC converter; 230-infrared detector; 300-laser distance measuring device; 310-wireless communication module; 320-laser distance measuring device; 330-power supply module; 340-second DC / DC converter; 400-cloud server. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0020] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. At the same time, in the description of the present invention, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0021] Please see Figure 1 and Figure 2 , Figure 1 A schematic diagram of the topological structure of a portable thermal imager system provided by an embodiment of the present invention; Figure 2 A schematic diagram of a mobile terminal topology structure provided by an embodiment of the present invention.

[0022] The embodiment of the present invention provides a portable thermal imager system 10 with a laser rangefinder 320, comprising a mobile terminal 100; a portable thermal image detection head 200 connected to the mobile terminal 100; and a laser rangefinder 300 connected to the mobile terminal 100; the portable thermal image detection head 200 comprises a connection port 210 connected to the mobile terminal 100; an infrared detector 230 is connected to the connection port 210; the laser rangefinder 300 comprises a wireless communication module 310 connected to the mobile terminal 100; and the wireless communication module 310 is connected to the wireless communication module 310. The laser rangefinder 320 is connected; the laser rangefinder 320 is used to detect the distance of the target object and send it to the mobile terminal 100 through the wireless communication module 310 in an encrypted or unencrypted manner; the mobile terminal 100 is used to send the distance data detected by the laser rangefinder 320 to the infrared detector 230; the infrared detector 230 is used to obtain an infrared image of the target object after initializing and calibrating the infrared detector 230 data based on the received distance data, and send the obtained infrared image to the mobile terminal 100 through the communication line connected to the connection port 210.

[0023] Exemplarily, the mobile terminal 100 can be a mobile phone, a tablet computer or other electronic device with an image display function. Wireless communication modules (such as Bluetooth modules, WiFi modules, 4G / 5G chips, etc.) can be set inside the laser distance measuring device 300 and the mobile terminal 100, and data interaction is performed in an encrypted or unencrypted manner through the wireless communication module. The connection port 210 of the portable thermal imaging detection head 200 can be an adsorption-type connection port. A program for infrared image calibration according to distance can be downloaded in the mobile terminal 100. When establishing the program, the distance-temperature change curve and the error proportional factor fitting curve of multiple targets with known temperatures at different measurement distances of the thermal imager can be obtained first (the error proportional factor fitting curve is the error proportional factor-distance curve obtained by fitting the difference between the detected absolute temperature and the ideal temperature and the detection distance), and the measured temperature curve is corrected to the ideal temperature curve through the error proportional factor fitting curve, so that the temperature value of the thermal imager remains in an ideal state as the measurement distance changes. When the error proportional factor fitting curves of the target object at multiple temperatures are obtained, multiple error proportional factor fitting curves can also be fitted to obtain temperature error curves that correct multiple temperatures; then, the corresponding calibration expression is obtained based on the temperature error curve, and the corresponding program is constructed based on the calibration expression.

[0024] In one embodiment, the portable thermal imager system 10 also includes a cloud server 400 connected to the mobile terminal 100; the cloud server 400 is used to store the data sent by the mobile terminal 100 to prevent excessive storage space of the mobile terminal 100 from being occupied; at the same time, the cloud server 400 can also be used to analyze and manage the sent data and dispatch work orders to the mobile terminals 100 of each inspection personnel.

[0025] In one implementation, the user may first set the temperature calibration parameters under various temperature and humidity conditions in the mobile terminal 100 , and then the mobile terminal 100 calibrates the acquired infrared image during actual detection.

[0026] In one embodiment, the mobile terminal 100 includes a control panel 110; wherein the control panel 110 includes an image capturing module 111, and the image capturing module 111 is used to capture and save the current infrared image. Specifically, the mobile terminal 100 can be a mobile phone or a tablet computer with a touch screen, and a corresponding image capturing operation interface can be set on the mobile terminal 100.

[0027] In one embodiment, the control panel 110 further includes a temperature warning module 112, through which an over-temperature object in the current infrared image can be warned according to a configured temperature threshold. Specifically, a corresponding over-temperature positioning operation interface can be set on the mobile terminal 100, in which the user can set an upper limit temperature value, and then the mobile terminal 100 locates the position in the infrared image that exceeds the upper limit temperature value according to the set upper limit temperature value and performs a flashing prompt and a voice alarm.

[0028] In one embodiment, the control panel 110 further includes a temperature measurement mode selection module 115; the temperature measurement mode selection module 115 includes a point temperature measurement unit, a line temperature measurement unit and a regional temperature measurement unit; the point temperature measurement unit is used to detect the temperature of a point selected in the infrared image; the line temperature measurement unit is used to detect the highest temperature and the lowest temperature on the selected marking line in the infrared image; the regional temperature measurement unit is used to detect the highest temperature and the lowest temperature in the selected detection box in the infrared image. Through the above embodiment, the user can locate the position in the infrared image by using a marking line or a marking box, and then the processor in the mobile terminal 100 calls the corresponding recognition program to display the temperature of the located area.

[0029] In one embodiment, the control panel 110 further includes a video recording module 113, through which the detection audio and video can be recorded according to the needs of the user. Specifically, a corresponding video recording operation interface can be set on the mobile terminal 100, through which the user can turn on the video recording function and control the start and stop time of the video recording.

[0030] In one embodiment, the control panel 110 further includes a calibration parameter configuration module 114, through which calibration parameters of the target temperature at each detection distance can be configured. Specifically, the manufacturer can construct a calibration parameter curve of the target temperature at different detection distances by analyzing the relationship between the detection distance and the detection error, and then calibrate the target temperature detected at each detection distance according to the calibration parameter curve.

[0031] In one implementation, in order to facilitate comparison for the user, the control panel 110 may further include a visible light image display module, and the visible light image corresponding to the infrared image may be displayed in a designated area of ​​the control panel 110 through the visible light image display module.

[0032] In one embodiment, considering that there may be a difference between the power supply voltage of the infrared detector 230 in the portable thermal imaging detection head 200 and the output voltage of the mobile terminal 100, the portable thermal imaging detection head 200 provided in an embodiment of the present invention also includes a first DC / DC converter 220, and the input end of the first DC / DC converter 220 is connected to the connection port 210; the output end of the first DC / DC converter 220 is connected to the infrared detector 230.

[0033] In one embodiment, considering that the power supply voltages of the laser rangefinder 320 and the wireless communication module 310 may be different, the laser ranging device 300 further includes a second DC / DC converter 340; a power module 330 connected to the second DC / DC converter 340; and the output end of the second DC / DC converter 340 is respectively connected to the laser rangefinder 320 and the wireless communication module 310.

[0034] In summary, an embodiment of the present invention provides a portable thermal imager system with a laser rangefinder, comprising a mobile terminal; a portable thermal imaging detection head connected to the mobile terminal; and a laser rangefinder connected to the mobile terminal; the portable thermal imaging detection head comprises a connection port connected to the mobile terminal; an infrared detector is connected to the connection port; the laser rangefinder comprises a wireless communication module connected to the mobile terminal; a laser rangefinder is connected to the wireless communication module; the laser rangefinder is used to detect the distance of a target object and send it to the mobile terminal through the wireless communication module; the infrared detector is used to obtain an infrared image of the target object and send it to the mobile terminal through a communication line connected to the connection port; the mobile terminal is used to calibrate the temperature data in the infrared image according to the distance; while improving the accuracy of infrared images in the power inspection process, it is more convenient to use.

[0035] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A portable thermal imager system with a laser rangefinder, characterized in that: It includes a mobile terminal; a portable thermal imaging detection head connected to the mobile terminal; and a laser distance measuring device connected to the mobile terminal; The portable thermal imaging detection head includes a connection port connected to the mobile terminal; an infrared detector is connected to the connection port; The laser distance measuring device comprises a wireless communication module connected to the mobile terminal; a laser distance measuring instrument connected to the wireless communication module; The laser rangefinder is used to detect the distance of the target object and send it to the mobile terminal through the wireless communication module in an encrypted or unencrypted manner; the mobile terminal is used to send the distance data detected by the laser rangefinder to the infrared detector; the infrared detector is used to obtain an infrared image of the target object after initializing and calibrating the infrared detector data based on the received distance data, correct the measured temperature curve to an ideal temperature curve through an error proportional factor fitting curve, and send the obtained infrared image to the mobile terminal through a communication line connected to the connection port; The mobile terminal includes a control panel, the control panel includes an image capturing module, and the image capturing module is used to capture and save the current infrared image; The control panel also includes a temperature warning module, which is used to issue a warning prompt for an over-temperature object in the current infrared image according to a configured temperature threshold.

2. The portable thermal imager system according to claim 1, characterized in that: The control panel also includes a video recording module, which is used to record the detection audio and video.

3. The portable thermal imager system according to claim 1, characterized in that: The control panel also includes a calibration parameter configuration module, and the calibration parameter configuration module is used to configure the calibration parameters of the target object temperature at each detection distance.

4. The portable thermal imager system according to claim 1, characterized in that: The control panel also includes a temperature measurement mode selection module; the temperature measurement mode selection module includes a point temperature measurement unit, a line temperature measurement unit and a regional temperature measurement unit; the point temperature measurement unit is used to detect the temperature of a point selected in the infrared image; The line temperature measurement unit is used to detect the highest temperature and the lowest temperature on the marking line selected in the infrared image; the area temperature measurement unit is used to detect the highest temperature and the lowest temperature in the detection frame selected in the infrared image.

5. The portable thermal imager system according to claim 1, characterized in that: The portable thermal imaging detection head also includes a first DC / DC converter, the input end of the first DC / DC converter is connected to the connection port; the output end of the first DC / DC converter is connected to the infrared detector.

6. The portable thermal imager system according to claim 1, characterized in that: The laser distance measuring device also includes a second DC / DC converter; a power supply module connected to the second DC / DC converter; and an output end of the second DC / DC converter is respectively connected to the laser distance measuring device and the wireless communication module.

7. The portable thermal imager system according to claim 1, characterized in that: The mobile terminal is a mobile phone or a tablet computer.

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