CN106248402B - Tire detection system and method based on infrared thermal imaging technology - Google Patents
Tire detection system and method based on infrared thermal imaging technology Download PDFInfo
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- CN106248402B CN106248402B CN201610875212.3A CN201610875212A CN106248402B CN 106248402 B CN106248402 B CN 106248402B CN 201610875212 A CN201610875212 A CN 201610875212A CN 106248402 B CN106248402 B CN 106248402B
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- 238000001514 detection method Methods 0.000 title claims abstract description 70
- 238000005516 engineering process Methods 0.000 title claims abstract description 15
- 238000001931 thermography Methods 0.000 title claims abstract description 11
- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000012360 testing method Methods 0.000 claims abstract description 99
- 230000003993 interaction Effects 0.000 claims description 7
- 238000012544 monitoring process Methods 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 4
- 230000000875 corresponding effect Effects 0.000 claims description 4
- 238000007689 inspection Methods 0.000 claims description 4
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- 238000010998 test method Methods 0.000 description 2
- 230000010259 detection of temperature stimulus Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
- G01M17/02—Tyres
- G01M17/027—Tyres using light, e.g. infrared, ultraviolet or holographic techniques
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Abstract
A tire detection system and method based on infrared thermal imaging technology. The system comprises: the system comprises a thermal infrared imager, a visible light camera, a tire detection testing machine, an IO module and tire detection software. The tire detection testing machine is a thermal infrared imager and a visible light imager, and in addition, the thermal infrared imager, the visible light camera and the tire detection testing machine realize counting synchronization in tire detection software through an IO module, so that the accumulated running time of the thermal infrared imager and the visible light camera is ensured to be the same as the accumulated running time of the tire detection testing machine. Meanwhile, when the temperature of the tire part area exceeds the set alarm temperature, an alarm module in the thermal infrared imager converts the signal into a digital signal and transmits the digital signal to tire detection software, and the tire detection software sends the digital signal to a tire testing machine through an IO module by a switching value signal, so that system linkage is realized.
Description
Technical Field
The invention relates to the field of intelligent application of infrared thermography, in particular to a detection system and method for tires.
Background
The automobile tyre as important automobile component is the important part for automobile to bear gravity, transfer traction force, braking force, steering force and road reaction force, and has quality related directly to personal and property safety. The detection of temperature distribution changes of the tire tread and the side surface of the tire under high-speed running by thermal imagery is also an important means. It is desirable to develop a tire testing system for such applications.
Disclosure of Invention
The invention discloses a tire durability test system and a tire durability test method, which are based on an infrared thermal imaging technology, realize a tire durability test system and a tire durability test method linked with other technologies cited in a tire durability test, and are used for realizing an automatic operation process of the tire durability test and increasing the reliability of an analysis result of the tire durability test.
In order to achieve the above object, the present invention provides a tire inspection system and method based on infrared thermal imaging technology, the system comprising: the system comprises a thermal infrared imager, a visible light camera, a tire detection testing machine, an IO module and tire detection software. The tire detection testing machine is a thermal infrared imager and a visible light imager, and in addition, the thermal infrared imager, the visible light camera and the tire detection testing machine realize counting synchronization in tire detection software through an IO module, so that the accumulated running time of the thermal infrared imager and the visible light camera is ensured to be the same as the accumulated running time of the tire detection testing machine. Meanwhile, when the temperature of the tire part area exceeds the set alarm temperature, an alarm module in the thermal infrared imager converts the signal into a digital signal and transmits the digital signal to tire detection software, and the tire detection software sends the digital signal to a tire testing machine through an IO module by a switching value signal, so that system linkage is realized.
According to the embodiment of the invention, the thermal infrared imager is erected beside the tire detection testing machine and used for shooting the infrared thermal image of the tire on the monitoring area of the testing machine and transmitting the thermal image signal to the tire detection software, wherein the alarm module of the thermal infrared imager generates an alarm signal by judging the alarm threshold temperature and converts the alarm signal into a digital signal to be transmitted to the tire detection software; the visible light camera is erected at the adjacent position of the thermal infrared imager and used for shooting visible light images of the tires, and the visible light camera and the thermal infrared imager can synchronously shoot the visible light images; the tire detection testing machine is a high-speed endurance testing machine for detecting tires, and a communication module is arranged in the tire detection testing machine and used for receiving and sending switching value state signals to communicate with an IO module; the IO module is connected with the tire detection software and the tire detection testing machine, so that interaction of state signals and alarm signals between the tire detection software and the tire detection testing machine is realized, and system linkage is realized; the tire detection software displays a tire thermal image in real time through thermal image signals transmitted by the thermal infrared imager, displays a visible light image of a tire in real time through visible light signals transmitted by the visible light imager, is linked with the tire detection testing machine through the IO module, executes corresponding actions according to the running state of the testing machine to take a snapshot, and finally achieves the functions of analyzing, recording, inquiring, reporting, deriving and the like of the tire thermal image.
According to the embodiment of the invention, the linkage of the system refers to the state of the tire detection testing machine sent to the tire detection software, the state of the tire detection software sent to the tire detection testing machine and the synchronization process of the tire detection software and the tire detection testing machine, and comprises the following steps:
(1) the tire testing machine sends 3 test states (switching value signals) to the tire testing software
State 1: when the equipment is in a running state, the tire detection software carries out snapshot on continuous infrared images at a set frequency
State 2: in the pause state of the equipment, the tire detection software carries out snapshot on the infrared image and the visible light image at the set frequency and the snapshot times
State 3: in the test finishing state, the tire detection software carries out snapshot on infrared images and visible light images at a set frequency and snapshot times, and after the snapshot is finished, the tire detection software enters a waiting state to wait for an operator to store test data
(2) The tire detection software sends 2 states to the tire detection testing machine
State 1: thermal imager is ready
State 2: finishing the snapshot of the thermal imager
(3) The tire detection software and the tire detection testing machine are synchronized, the tire detection testing machine sends a pulse per second switching value signal to the tire detection software after being started, and the software realizes timing by a pulse per second technology, so that the snapshot accumulated running time of the tire detection software is always the same as the accumulated running time of the tire detection testing machine.
According to the embodiment of the invention, the IO module realizes the interaction of the alarm signal between the tire detection software and the tire detection testing machine, namely the tire detection software firstly sets the alarm temperature threshold value for the thermal infrared imager, when the thermal infrared imager detects that the alarm temperature threshold value is exceeded in the monitoring area, the alarm signal is sent to the tire detection software, and then the tire detection software sends the alarm signal to the tire detection testing machine in a switching value mode through the IO module.
Drawings
Fig. 1 is a general structural block diagram of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the embodiments of the present invention are described in further detail below with reference to the embodiments and the drawings. Again, the exemplary embodiments of the present invention and the description thereof are only for explaining the present invention, but not as limiting the present invention.
The invention provides a tire detection system and method based on an infrared thermal imaging technology, and detection of various performances of a tire in an industrial test environment is realized.
FIG. 1 is a block diagram of a tire testing system according to an embodiment of the present invention. As shown in fig. 1, the present invention provides a tire inspection system and method based on infrared thermal imaging technology, the system includes: the system comprises a thermal infrared imager 1, a visible light camera 2, an IO module 3, a tire detection testing machine 4 and tire detection software 5. The tire detection testing machine is a thermal infrared imager 1 and a visible light image machine 2, and in addition, the thermal infrared imager 1, the visible light image machine 2 and the tire detection testing machine 5 realize counting synchronization in the tire detection software 4 through an IO module 3, so that the accumulated running time of the thermal infrared imager 1 and the visible light image machine 2 in snapshot is the same as the accumulated running time of the tire detection testing machine 4. Meanwhile, when the temperature of the tire part area exceeds the set alarm temperature, the alarm module in the thermal infrared imager 1 converts the signal into a digital signal and transmits the digital signal to the tire detection software 5, and then the tire detection software 5 sends the digital signal to the tire testing machine 4 through the IO module 3 by a switching value signal, so that system linkage is realized.
The thermal infrared imager 1 is erected beside the tire detection testing machine 4 and used for shooting an infrared thermal image of a tire on a monitoring area of the testing machine and transmitting a thermal image signal to the tire detection software 5, wherein an alarm module of the thermal infrared imager 1 generates an alarm signal by judging the alarm threshold temperature and converts the alarm signal into a digital signal to be transmitted to the tire detection software 5; the visible light camera 2 is erected at a position adjacent to the thermal infrared imager 1 and is used for shooting visible light images of the tires, and the visible light images and the thermal infrared imager 1 can be shot synchronously; the tire detection testing machine 4 is a high-speed endurance testing machine for detecting tires, and a communication module is arranged in the tire detection testing machine and used for receiving and sending switching value state signals to communicate with the IO module 3; the IO module 3 is connected with the tire detection software 5 and the tire detection testing machine 4, so that interaction of state signals and alarm signals between the tire detection software 5 and the tire detection testing machine 4 is realized, and linkage of a system is realized; the tire detection software 5 displays a tire thermal image in real time through thermal image signals transmitted by the thermal infrared imager 1, displays a visible light image of a tire in real time through visible light signals transmitted by the visible light camera 2, is linked with the tire detection testing machine 4 through the IO module 3, executes corresponding actions according to the running state of the testing machine 4 to snapshot, and finally achieves the functions of analyzing, recording, inquiring, reporting, deriving and the like of tire thermal images.
According to an embodiment of the present invention, the tire testing machine 4 sends 3 test states to the tire testing software 5 as:
state 1: when the equipment is in a running state, the tire detection software 5 carries out snapshot continuous infrared images at a set frequency
State 2: in the state of equipment pause, the tire detection software 5 carries out snapshot on infrared images and visible light images at set frequency and snapshot times
State 3: in the test ending state, the tire detection software 5 takes a snapshot of the infrared image and the visible light image at a set frequency and snapshot times, after the snapshot is finished, the tire detection software 5 enters a waiting state to wait for an operator to store test data
The tire detection software 5 sends 2 states to the tire detection tester 4 as:
state 1: thermal imager 1 is ready
State 2: the thermal imager 1 finishes capturing
The tire detection software 5 and the tire detection testing machine 4 are synchronized, the tire detection testing machine 4 sends a pulse per second switching value signal to the tire detection software 5 after being started, and the software realizes timing by a pulse per second technology, so that the snapshot accumulated running time of the tire detection software 5 is always the same as the accumulated running time of the tire detection testing machine 4.
According to the embodiment of the invention, the IO module 3 realizes the interaction of the alarm signal between the tire detection software 5 and the tire detection testing machine 4, which means that the tire detection software 5 firstly sets the alarm temperature threshold value for the thermal infrared imager 1, when the thermal infrared imager 1 detects that the alarm temperature threshold value is exceeded in the monitoring area, the alarm signal is sent to the tire detection software 5, and then the tire detection software 5 sends the alarm signal to the tire detection testing machine 4 through the IO module 3 in the form of switching value.
Although a number of illustrative embodiments of the invention have been described in detail above with reference to the accompanying drawings, it is to be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this disclosure.
Claims (3)
1. A tire inspection system based on infrared thermal imaging technology, comprising:
the thermal infrared imager is erected beside the tire detection testing machine and used for shooting an infrared thermal image of a tire on a monitoring area of the testing machine and transmitting a thermal image signal to tire detection software, wherein an alarm module of the thermal infrared imager generates an alarm signal by judging alarm threshold temperature and converts the alarm signal into a digital signal to be transmitted to the tire detection software;
the visible light camera is erected at the adjacent position of the thermal infrared imager and used for shooting visible light images of the tires, and the visible light camera and the thermal infrared imager can synchronously shoot images;
the tire detection testing machine is a high-speed endurance testing machine for detecting tires, and a communication module is arranged in the tire detection testing machine and used for receiving and sending switching value state signals to communicate with an IO module; the tire detection testing machine sends 3 testing state switching value signals to the tire detection software,
state 1: when the equipment is in a running state, the tire detection software carries out snapshot on continuous infrared images at a set frequency;
state 2: in the pause state of the equipment, the tire detection software carries out snapshot on infrared images and visible light images at a set frequency and snapshot times;
state 3: in the test finishing state, the tire detection software snapshottes infrared images and visible light images at a set frequency and at a set snapshotting frequency, and after the snapshotting is finished, the tire detection software enters a waiting state to wait for an operator to store test data;
the IO module is connected with the tire detection software and the tire detection testing machine, so that interaction of the state signal and the alarm signal between the tire detection software and the tire detection testing machine is realized, and system linkage is realized;
the tire detection software displays a tire thermal image in real time through thermal image signals transmitted by the thermal infrared imager, displays a visible light image of the tire in real time through visible light signals transmitted by the visible light imager, is linked with the tire detection testing machine through an IO module, executes corresponding actions according to the running state of the testing machine for snapshot, and finally realizes the functions of analyzing, recording, inquiring, reporting, exporting and the like of the tire thermal image; the tire testing software sends 2 states to the tire testing machine,
state 1: finishing the preparation of the thermal imager;
state 2: finishing the snapshot by the thermal imager;
the tire detection software and the tire detection testing machine are synchronized, the tire detection testing machine sends a pulse per second switching value signal to the tire detection software after being started, and the software realizes timing by a pulse per second technology, so that the snapshot accumulated running time of the tire detection software is always the same as the accumulated running time of the tire detection testing machine.
2. A tire detection method of a tire detection system based on an infrared thermal imaging technology comprises the following steps:
(1) the tire detection testing machine sends 3 testing state switching value signals to the tire detection software,
state 1: when the equipment is in a running state, the tire detection software carries out snapshot on continuous infrared images at a set frequency;
state 2: in the pause state of the equipment, the tire detection software carries out snapshot on infrared images and visible light images at a set frequency and snapshot times;
state 3: in the test finishing state, the tire detection software snapshottes infrared images and visible light images at a set frequency and at a set snapshotting frequency, and after the snapshotting is finished, the tire detection software enters a waiting state to wait for an operator to store test data;
(2) the tire testing software sends 2 states to the tire testing machine,
state 1: finishing the preparation of the thermal imager;
state 2: finishing the snapshot by the thermal imager;
(3) the tire detection software and the tire detection testing machine are synchronized, the tire detection testing machine sends a pulse-per-second switching value signal to the tire detection software after being started, and the software realizes timing by a pulse-per-second technology, so that the snapshot accumulated running time of the tire detection software is always the same as the accumulated running time of the tire detection testing machine;
wherein the tire inspection system comprises:
the thermal infrared imager is erected beside the tire detection testing machine and used for shooting an infrared thermal image of a tire on a monitoring area of the testing machine and transmitting a thermal image signal to tire detection software, wherein an alarm module of the thermal infrared imager generates an alarm signal by judging alarm threshold temperature and converts the alarm signal into a digital signal to be transmitted to the tire detection software;
the visible light camera is erected at the adjacent position of the thermal infrared imager and used for shooting visible light images of the tires, and the visible light camera and the thermal infrared imager can synchronously shoot images;
the tire detection testing machine is a high-speed endurance testing machine for detecting tires, and a communication module is arranged in the tire detection testing machine and used for receiving and sending switching value state signals to communicate with an IO module;
the IO module is connected with the tire detection software and the tire detection testing machine, so that interaction of the state signal and the alarm signal between the tire detection software and the tire detection testing machine is realized, and system linkage is realized;
the tire detection software displays a tire thermal image in real time through thermal image signals transmitted by the thermal infrared imager, displays a visible light image of the tire in real time through visible light signals transmitted by the visible light imager, is linked with the tire detection testing machine through the IO module, executes corresponding actions according to the running state of the testing machine to take a snapshot, and finally achieves the functions of analyzing, recording, inquiring, reporting, deriving and the like of the tire thermal image.
3. The method for detecting the tire of the tire detection system based on the thermography technology of claim 2, wherein the IO module implements interaction of the alarm signal between the tire detection software and the tire detection testing machine, which means that the tire detection software first sets an alarm temperature threshold for the thermal infrared imager, and when the thermal infrared imager detects that the alarm temperature threshold is exceeded in the monitored area, the alarm signal is sent to the tire detection software, and then the tire detection software sends the alarm signal to the tire detection testing machine in the form of a switching value through the IO module.
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| EP3814152A4 (en) | 2018-06-29 | 2021-10-20 | Tyrata, Inc. | Structures and methods providing tread sensor integration |
| US11614317B2 (en) | 2019-06-21 | 2023-03-28 | Tyrata, Inc. | Methods providing enhanced material thickness sensing with capacitive sensors using inductance-generated resonance and related devices |
| CN112461895A (en) * | 2020-12-18 | 2021-03-09 | 青岛森麒麟轮胎股份有限公司 | Thermal imaging detection system and method for aircraft tire through damage |
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Address after: 200436, room 238, No. three, 703-704 Shanghai Road, Zhabei District, China Patentee after: SHANGHAI THERMAL IMAGE SCIENCE AND TECHNOLOGY Co.,Ltd. Address before: 200436, room 238, No. three, 703-704 Shanghai Road, Zhabei District, China Patentee before: SHANGHAI IRSIGHT MECHANICAL & ELECTRICAL TECHNOLOGY Co.,Ltd. |