CN108356035A - It is a kind of using laser detection and to remove the device and method of tire longitudinal groove foreign matter - Google Patents
It is a kind of using laser detection and to remove the device and method of tire longitudinal groove foreign matter Download PDFInfo
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- CN108356035A CN108356035A CN201810320904.0A CN201810320904A CN108356035A CN 108356035 A CN108356035 A CN 108356035A CN 201810320904 A CN201810320904 A CN 201810320904A CN 108356035 A CN108356035 A CN 108356035A
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- tire
- groove
- laser
- foreign matter
- linear motor
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- 238000001514 detection method Methods 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000004973 liquid crystal related substance Substances 0.000 claims description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000005622 photoelectricity Effects 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 206010037660 Pyrexia Diseases 0.000 description 1
- 230000037396 body weight Effects 0.000 description 1
- 239000006063 cullet Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
- B08B7/0035—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by radiant energy, e.g. UV, laser, light beam or the like
- B08B7/0042—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by radiant energy, e.g. UV, laser, light beam or the like by laser
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V8/00—Prospecting or detecting by optical means
- G01V8/10—Detecting, e.g. by using light barriers
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The present invention provides a kind of using laser detection and removes the device of tire longitudinal groove foreign matter, includes laser emitter and fixed plate on automobile chassis；Several photoelectric sensors are installed, fixed plate is arranged side by side with linear motor stator electric point row and the same tire both sides, several photoelectric sensors, and each photoelectric sensor is with every groove on tire to just in fixed plate.The problem of can finding that tire tread groove is embedded in foreign matter in time in not parking process, and removing the foreign matters such as embedded handstone in tire tread groove.The present invention also provides a kind of using laser detection and the method that removes tire longitudinal groove foreign matter.
Description
Technical field
The invention belongs to automotive checks and security technology area, and in particular to a kind of using laser detection and to remove tire vertical
To the device of groove foreign matter, the invention further relates to the methods for being detected using the device and removing tire longitudinal groove foreign matter.
Background technology
Tire is the important execution unit of vehicle, and steering, acceleration and braking of vehicle etc. will be executed by tire, and be taken turns
The working environment of tire is very severe, not only to bear extra-stress when car body weight, acceleration and braking, also bear one
Alleviate the important task of road shocks power in part.Guarantee driving safety and extension Life of Tyre are all of great significance.Currently, by
Poor in the road environment condition of China's road, tire is unavoidable to be embedded in the foreign matters such as handstone, cullet and iron nail, these
Insert may make rub between tire and ground stress or fever unevenness, reduce the service life of tire, influence running car
It can, it is also possible to tire can be punctured, subsequent vehicles or pedestrians of impact etc. can be thrown away, traffic safety is impacted, it is general
Solution is to inspect periodically maintenance tire or temporary parking to be plucked out foreign matter with screwdriver or key etc..Due to not having
Dedicated tool often will appear, foreign matter is bound to when being plucked out on compartment, when plucking out foreign matter when removing the foreign matters such as stone
The hand of operator is damaged by compartment, or even phenomena such as can not pluck out foreign matter.
In short, the harm of tire tread foreign matter is not small, but detects and remove and be all not easy.
Invention content
The object of the present invention is to provide a kind of using laser detection and removes the device of tire longitudinal groove foreign matter, Ke Yi
Not parking process finds that tire tread groove is embedded in foreign matter in time, and removes and be embedded in asking for the foreign matters such as handstone in tire tread groove
Topic.
The technical solution adopted by the present invention is, using laser detection and removes the device of tire longitudinal groove foreign matter, including
Laser emitter on automobile chassis and fixed plate；Several photoelectric sensors are installed in fixed plate, fixed plate with
Linear motor stator electric point row and the same tire both sides, several photoelectric sensors are arranged side by side, each photoelectric sensor and wheel
Every longitudinal groove on tire is to just.
The features of the present invention also characterized in that
Laser emitter is mounted on the front end of linear motor rotor, and both linear motor rotor and linear motor stator electric are even
It connects.
Fixed plate is arranged side by side with linear motor stator electric point row and the same tire both sides, several photoelectric sensors, often
A photoelectric sensor is with every groove on tire to just.
Fixed plate is arranged side by side with linear motor stator electric point row and the same tire both sides, several photoelectric sensors, often
A photoelectric sensor is with every groove on tire to just, photoelectric sensor is located at same level height with laser emitter.
Photoelectric sensor, linear motor rotor, laser emitter are connect with microcontroller respectively, microcontroller also with position sensing
Device, camera, liquid crystal display are connected with alarm lamp.Position sensor is located at the position where linear motor rotor.Camera is installed
On the chassis right over tire.Liquid crystal display and alarm lamp are arranged at Automobile operation panel.
It is a further object of the present invention to provide a kind of using laser detection and the method that removes tire longitudinal groove foreign matter, tool
Body is implemented according to the following steps：
Step 1, system carries out self-test after opening, and laser generator is made to be located at the corresponding position of tire longitudinal direction first groove
It sets,
Step 2, laser emitter power is turned down,
Step 3, laser transmitter projects detect laser, according to laser whether by longitudinal groove come judge in groove whether
There is foreign matter, when photosensitive sensor no signal, illustrates that there are foreign matters in sipe, at this point, need to be removed to it, go to step
5, when photosensitive sensor has signal, illustrates that foreign matter is not present in the sipe, be transferred to the inspection that step 4 carries out next groove
It surveys,
Step 4, judge whether to be the last item groove, it is not different if not the last item groove, and in current trench
Object, by control system so that linear motor rotor horizontally outward moves on the axis direction of linear motor stator electric upper edge tire
It moves to the Article 2 groove of tire, then after controlling laser emitter transverse shifting, implementation steps 2, if it is the last item groove,
Then laser emitter moves back to initial position, terminates this detection；
Step 5, when detecting that the alarm lamp at autopilot control panel is bright there are when foreign matter in the groove of tire in step 3
Alarm is played, opens simultaneously camera, and in liquid crystal display screen display shooting picture, whether system prompt driver needs at this time
Foreign matter is removed, if to remove, after transmitting laser is smashed after the laser frequency of laser transmitter projects is turned up, is transferred to
Step 2；If do not removed temporarily, it is transferred to implementation steps 4.
The features of the present invention also characterized in that
Step 1 is specifically, in vehicle operation, and after sending out detection signal, linear motor stator electric, linear motor rotor is located at
The most inner side groove of initial position, tire is set as first groove, and equipment proceeds by detection.
Step 3 specific method is, laser emitter emits low power laser to first groove of tire, if tire
It will be mapped to mounted on fixed plate and take turns without embedded foreign matter, the low power laser of laser transmitter projects in first groove
To on positive photoelectric sensor on first groove of tire, after photoelectric sensor receives low power laser signal, i.e. the groove
In there is no foreign matter, be transferred to step 4 at this time；If laser emitter emits low power laser, laser to first groove of tire
The low power laser of transmitter transmitting cannot be mapped on first groove of fixed plate and tire to positive photoelectricity
On sensor, photoelectric sensor does not receive low power laser signal, i.e., has been embedded in foreign matter in the first of tire groove,
It is transferred to step 5 at this time.
Step 5 when being determined in groove in step 3 specifically, be embedded in foreign matter, then on Automobile operation panel
Alarm lamp is bright, while the liquid crystal display that can be opened on Automobile operation panel is observed, and is mounted on above tire
Camera on chassis passes to captured tire summit image on liquid crystal display in real time, can choose whether to remove different
Object then calculates angle position of the foreign matter in tire circumference if necessary to remove according to the signal frequency on vehicle wheel rotational speed and sensor
It sets, when tire, which continues to be turned back to foreign matter, is again close to groove vertex position, will pass through this control system adjustment Laser emission
Device emits high power laser light, and energy is focused on groove vertex by high power laser light by laser, and continuously to the first of tire
Groove emits high power density laser, and laser transmitter projects high power laser light can be by tire in the rotary course of tire
It has been embedded in foreign matter in first groove and has carried out fusing cutting, has removed foreign matter；Then it is transferred to step 2；If selection wouldn't be gone
It removes, is then transferred to step 4.
The invention has the advantages that
(1) in vehicular motion, by the translucency of low power laser beam periodically or non-periodically come detection wheel
Tyre surface foreign matter need not stop.
(2) it after being found that foreign matter, is cut by high power density laser beam and impacts foreign matter and cause its rupture, realized pair
The foreign matters such as the stone on tire tread groove are removed.
(3) there is on-line checking, quick and precisely, removal is quick, it is easy to use the advantages that.
Description of the drawings
Fig. 1 is that the present invention is a kind of using laser detection and the structural schematic diagram of the device that removes tire longitudinal groove foreign matter；
Fig. 2 be the present invention it is a kind of using laser detection and remove tire tread longitudinal groove be embedded in foreign matter device vertical view
Structural schematic diagram；
Fig. 3 is a kind of using at the B-B of laser detection and Fig. 1 of the device that removes tire longitudinal groove foreign matter of the present invention
Cutaway view Amplified image；
Fig. 4 is a kind of using laser detection and the control system of the device that removes tire longitudinal groove foreign matter of the present invention
Figure；
Fig. 5 is to utilize a kind of using laser detection and the flow of the method that removes tire longitudinal groove foreign matter of the present invention
Figure.
In figure, 1. linear motor stator electrics, 2. linear motor rotors, 3. laser emitters, 4. foreign matters, 5. tires, 6. photoelectricity
Sensor, 7. fixed plates, 8. position sensors, 9. microcontrollers, 10. cameras, 11. liquid crystal displays, 12. alarm lamps, 51. longitudinal ditches
Slot.
Specific implementation mode
The following describes the present invention in detail with reference to the accompanying drawings and specific embodiments.
It is a kind of using laser detection and to remove the device of tire longitudinal groove foreign matter, as shown in Figure 1, including being mounted on automobile
Laser emitter 3 on chassis and fixed plate 7；Several photoelectric sensors 6 are installed in fixed plate 7.
Laser emitter 3 is mounted on the front end of linear motor rotor 2, both linear motor rotor 2 and linear motor stator electric 1
Connection,
As shown in Fig. 2, linear motor rotor 2 can be in the axis direction horizontal linear of 1 upper edge tire 5 of linear motor stator electric
It is mobile.
Fixed plate 7 divides row and the same tire both sides, several photoelectric sensors 6 to be arranged side by side with linear motor stator electric 1,
Each photoelectric sensor 6 and every longitudinal groove 51 on tire to just,
Photoelectric sensor 6 is located at same level height with laser emitter 3.
As shown in figure 3, photoelectric sensor 6, linear motor rotor 2, laser emitter 3 are connect with microcontroller 9 respectively,
Microcontroller 9 is also connect with position sensor 8, camera 10, liquid crystal display 11 and alarm lamp 12,
Position sensor 8 is located at the position where linear motor rotor 2,
Camera 10 is mounted on the chassis right over tire,
Liquid crystal display 11 and alarm lamp 12 are arranged at Automobile operation panel.
A method of using laser detection and removing tire longitudinal groove foreign matter, be utilized it is a kind of using laser detection simultaneously
The device for removing tire tread longitudinal groove insertion foreign matter, is specifically implemented according to the following steps：
Step 1, system carries out self-test after opening, and laser generator is made to be located at the corresponding position of tire longitudinal direction first groove
It sets, specifically,
In vehicle operation, after sending out detection signal, linear motor stator electric 1, linear motor rotor 2 is located at initial position,
The most inner side groove of tire 5 is set as first groove, and equipment proceeds by detection.
Step 2, laser emitter power is turned down,
Step 3, laser transmitter projects detect laser, according to laser whether by longitudinal groove come judge in groove whether
There is foreign matter, when photosensitive sensor no signal, illustrates that there are foreign matters in sipe, at this point, need to be removed to it, go to step
5, when photosensitive sensor has signal, illustrates that foreign matter is not present in the sipe, be transferred to the inspection that step 4 carries out next groove
It surveys.
Specific method is, laser emitter 3 emits low power laser to first groove of tire 5, if the of tire 5
Without embedded foreign matter 4 in one groove, the low power laser that laser emitter 3 emits will be mapped to mounted on fixed plate 7 and
To on positive photoelectric sensor 6, after photoelectric sensor 6 receives low power laser signal, i.e., should on first groove of tire 5
There is no foreign matter in groove, is transferred to step 4 at this time；
If laser emitter 3 emits low power laser to first groove of tire 5, laser emitter 3 emits low
Power laser cannot be mapped on first groove of fixed plate 7 and tire 5 on positive photoelectric sensor 6, light
Electric transducer 6 does not receive low power laser signal, i.e., has been embedded in foreign matter 4 in the first of tire 5 groove, has been transferred at this time
Step 5；
Step 4, judge whether to be the last item groove, if it is not, then after control laser emitter transverse shifting, implement
Step 2, if it is the last item groove, then laser emitter moves back to initial position, terminates this detection；Specifically,
Refer to, if there is no foreign matter in current trench, by control system so that linear motor rotor 2 is in 1 upper edge wheel of linear motor stator electric
On the axis direction of tire 5, move horizontally outward to the Article 2 groove of tire 5.
Step 5, when detecting that the alarm lamp at autopilot control panel is bright there are when foreign matter in the groove of tire in step 3
Alarm is played, opens simultaneously camera, and in liquid crystal display screen display shooting picture, whether system prompt driver needs at this time
Foreign matter is removed, if to remove, after transmitting laser is smashed after the laser frequency of laser transmitter projects is turned up, is transferred to
Step 2；
If do not removed temporarily, it is transferred to implementation steps 4.
Step 5 refers specifically to, and has been embedded in foreign matter when being determined in groove in step 3, has then been mounted on Automobile operation panel
Alarm lamp 12 is bright, while can open the liquid crystal display 11 on Automobile operation panel and be observed, and is mounted on tire
Camera 10 on the chassis of top passes to captured tire summit image on liquid crystal display 11 in real time, can choose whether
Foreign matter is removed, if to remove, foreign matter is calculated on 5 circumference of tire according to the signal frequency on vehicle wheel rotational speed and sensor 6
Angle Position will pass through the adjustment of this control system when tire 5, which continues to be turned back to foreign matter, is again close to groove vertex position and swash
Optical transmitting set 3 emits high power laser light, and energy is focused on groove vertex by high power laser light by laser 3, and continuously to wheel
First groove of tire 5 emits high power density laser, rotary course of the transmitting high power laser light of laser emitter 3 in tire 5
The middle foreign matter 4 that can will be embedded in first groove of tire 5 carries out fusing cutting, removes foreign matter；Then it is transferred to step 2.
If selection wouldn't remove, it is transferred to step 4.
The laser projected in laser emitter is after foreign matter is cut in fusing, meeting directive sensor 6, because sensor 6 is not
In the focal point of laser, so the energy on sensor 6 is without focal point height, the materials'use of sensor 6 is rare metal
Material has to laser insensitivity, and sensor 6 will not be caused to be damaged by laser, when sensor 6 receives swashing for stronger energy
The power of controller reduction laser emitter 3 to low power density laser beam can be passed through after optical signal immediately.When tire 5 rotates one
Zhou Hou, control system re-emit low power density laser beam by laser emitter 3 is adjusted to first groove of tire 5, with
It detects in first groove of tire 5 and has been embedded in whether foreign matter 4 has been removed, be transferred to step 2, if do not removed,
It is once removed, is not still removed again according to the method in step 5 for continuous five times, manual intervention removal will be carried out；
It is had been removed when being embedded in foreign matter 4 in first groove of tire 5, then control system makes linear motor
Mover 2 moves horizontally outward on the axis direction of 1 upper edge tire 5 of linear motor stator electric to the Article 2 groove of tire 5.Wheel
First bar ditch of the detection and removal process and tire 5 of foreign matter in the Article 2 groove of tire 5, Article 3 groove, Article 4 groove
Slot is still identical.After foreign matter embedded in the Article 4 groove for detect tire 5 has been removed, control system makes straight line
For electric mover 2 on the axis direction of 1 upper edge tire 5 of linear motor stator electric, level moves inwardly into the first bar ditch of tire 5
Slot restPoses.
Claims (10)
- Using laser detection and the device of tire longitudinal groove foreign matter is removed 1. a kind of, which is characterized in that including being mounted on automobile Laser emitter (3) on chassis and fixed plate (7)；Several photoelectric sensors (6) are installed in the fixed plate (7), The fixed plate (7) and linear motor stator electric (1) point row and the same tire both sides, several described photoelectric sensors (6) it is arranged side by side, each photoelectric sensor (6) is with every groove on tire to just.
- A kind of using laser detection and the device of tire longitudinal groove foreign matter, feature are removed 2. according to claim 1 It is, the laser emitter (3) is mounted on the front end of linear motor rotor (2), linear motor rotor (2) and linear motor The connection of both stators (1).
- A kind of using laser detection and the device of tire longitudinal groove foreign matter, feature are removed 3. according to claim 1 It is, the fixed plate (7) and linear motor stator electric (1) point row and the same tire both sides, several described photoelectric transfers Sensor (6) is arranged side by side, and each photoelectric sensor (6) is with every longitudinal groove (51) on tire to just.
- A kind of using laser detection and the device of tire longitudinal groove foreign matter, feature are removed 4. according to claim 1 It is, the fixed plate (7) and linear motor stator electric (1) point row and the same tire both sides, several described photoelectric transfers Sensor (6) is arranged side by side, every groove on each photoelectric sensor (6) and tire to just, the photoelectric sensor (6) with Laser emitter (3) is located at same level height.
- A kind of using laser detection and the device of tire longitudinal groove foreign matter, feature are removed 5. according to claim 1 It is, the photoelectric sensor (6), linear motor rotor (2), laser emitter (3) are connect with microcontroller (9) respectively, institute The microcontroller (9) stated also is connect with position sensor (8), camera (10), liquid crystal display (11) and alarm lamp (12).The position Set the position that sensor (8) is located at where linear motor rotor (2).
- A kind of using laser detection and the device of tire longitudinal groove foreign matter, feature are removed 6. according to claim 5 It is, the camera (10) is mounted on the chassis right over tire.The liquid crystal display (11) and alarm lamp (12) is set It sets at Automobile operation panel.
- 7. a kind of using laser detection and the method that removes tire longitudinal groove foreign matter, a kind of laser detection is utilized and removal is taken turns Tyre surface longitudinal groove is embedded in the device of foreign matter, is specifically implemented according to the following steps：Step 1, system carries out self-test after opening, and laser generator is made to be located at the corresponding position of tire longitudinal direction first groove,Step 2, laser emitter power is turned down,Step 3, laser transmitter projects detect laser, different according to whether laser by longitudinal groove judge to have in groove Object illustrates that there are foreign matters in sipe, at this point, need to be removed to it, goes to step 5 when photosensitive sensor no signal, when When photosensitive sensor has signal, illustrates that foreign matter is not present in the sipe, is transferred to the detection that step 4 carries out next groove,Step 4, judge whether to be the last item groove, if not the last item groove, and there is no foreign matter in current trench, lead to Crossing control system makes linear motor rotor (2) on the axis direction of linear motor stator electric (1) upper edge tire (5), horizontal direction The outer Article 2 groove for being moved to tire (5), then after controlling laser emitter transverse shifting, implementation steps 2, if it is last Groove, then laser emitter move back to initial position, terminate this detection；Step 5, when detecting that the alarm lamp at autopilot control panel lights report there are when foreign matter in the groove of tire in step 3 It is alert, open simultaneously camera, and in liquid crystal display screen display shooting picture, whether system prompt driver needs to remove at this time Foreign matter after transmitting laser is smashed after the laser frequency of laser transmitter projects is turned up, is transferred to step if to remove 2；If do not removed temporarily, it is transferred to implementation steps 4.
- 8. according to claim 7 a kind of using laser detection and the method that removes tire longitudinal groove foreign matter, feature It is, the step 1 is specifically, in vehicle operation, and after sending out detection signal, linear motor stator electric (1), straight-line electric is motor-driven Sub (2) are located at initial position, and the most inner side groove of tire (5) is set as first groove, and equipment proceeds by detection.
- 9. according to claim 7 a kind of using laser detection and the method that removes tire longitudinal groove foreign matter, feature It is, the step 3 specific method is that laser emitter (3) emits low power laser to first groove of tire (5), If will be penetrated without embedded foreign matter (4), the low power laser of laser emitter (3) transmitting in first groove of tire (5) To on positive photoelectric sensor (6) on to first groove mounted on fixed plate (7) and tire (5), photoelectric sensor (6) After receiving low power laser signal, i.e., there is no foreign matter in the groove, be transferred to step 4 at this time；If laser emitter (3) is to wheel First groove of tire (5) emits low power laser, and the low power laser of laser emitter (3) transmitting, which cannot be mapped to, to be mounted on To on positive photoelectric sensor (6), photoelectric sensor (6) does not receive on first groove of fixed plate (7) and tire (5) It has been embedded in foreign matter (4) in first groove of low power laser signal, i.e. tire (5), has been transferred to step 5 at this time.
- 10. according to claim 7 a kind of using laser detection and the method that removes tire longitudinal groove foreign matter, feature It is, the step 5 when being determined in groove in step 3 specifically, be embedded in foreign matter, then on Automobile operation panel Alarm lamp (12) it is bright, while the liquid crystal display (11) on Automobile operation panel can be opened and observed, installed Camera (10) above the tire on chassis passes to captured tire summit image on liquid crystal display (11) in real time, can To choose whether removal foreign matter,If necessary to remove, then foreign matter is calculated on tire (5) circumference according to the signal frequency on vehicle wheel rotational speed and sensor (6) Angle Position will pass through the adjustment of this control system when tire (5), which continues to be turned back to foreign matter, is again close to groove vertex position Laser emitter (3) emits high power laser light, and energy is focused on groove vertex by high power laser light by laser (3), and even Continue to first groove of tire (5) and emit high power density laser, laser emitter (3) emits high power laser light in tire (5) foreign matter (4) can will be embedded in rotary course in first groove of tire (5) and has carried out fusing cutting, removal is different Object；Then it is transferred to step 2；If selection wouldn't remove, it is transferred to step 4.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810320904.0A CN108356035B (en) | 2018-04-11 | 2018-04-11 | Device and method for detecting and removing foreign matters in longitudinal grooves of tires by utilizing laser |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810320904.0A CN108356035B (en) | 2018-04-11 | 2018-04-11 | Device and method for detecting and removing foreign matters in longitudinal grooves of tires by utilizing laser |
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| CN108356035A true CN108356035A (en) | 2018-08-03 |
| CN108356035B CN108356035B (en) | 2024-06-11 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112058806A (en) * | 2020-08-28 | 2020-12-11 | 无锡中车时代智能装备有限公司 | Motor stator inside groove laser self-cleaning device |
| CN112498292A (en) * | 2020-11-23 | 2021-03-16 | 中国联合网络通信集团有限公司 | Tire foreign matter removing method, electronic control unit, device, terminal and vehicle |
| CN113311002A (en) * | 2021-05-27 | 2021-08-27 | 中冶赛迪重庆信息技术有限公司 | Device and method for identifying appearance defects of steel coil |
| CN113415239A (en) * | 2021-06-24 | 2021-09-21 | 东风汽车集团股份有限公司 | Car chassis fire early warning system |
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