CN113702295A - Automobile exhaust detection device and detection method based on infrared double vision and ultrasonic positioning - Google Patents
Automobile exhaust detection device and detection method based on infrared double vision and ultrasonic positioning Download PDFInfo
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 239000008187 granular material Substances 0.000 claims description 4
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 3
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- 239000004205 dimethyl polysiloxane Substances 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
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- 239000013589 supplement Substances 0.000 description 2
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Abstract
The invention discloses an automobile exhaust detection device and a detection method based on infrared double-vision and ultrasonic positioning. According to the tail gas detection device, the infrared thermal imaging double-vision positioning module is utilized to obtain the position information of the automobile tail gas port according to the formed infrared image and visible image, the relative position of the device and the tail gas port is obtained through ultrasonic positioning, the tail gas collecting pipe extends into the automobile tail gas port through the movement of the bottom platform moving mechanism, the carrying platform moving mechanism and the electric telescopic rod, and the tail gas is introduced into the tail gas detection module, so that the detection of the tail gas is realized. The invention has the advantages that the tail gas detection device can automatically detect the tail gas, realize the accurate identification of the tail gas port and reduce the health damage to people caused by manual operation.
Description
Technical Field
The invention belongs to the technical field of automobile exhaust detection, and particularly relates to an automobile exhaust detection device and method based on infrared double vision and ultrasonic positioning.
Background
Automobile exhaust has become one of the main pollution sources of atmospheric pollution. The harm of the automobile exhaust gas sucked for a long time to the human health is very large, so the automobile exhaust gas detection is taken as an important part in the renovation work, and the attention is paid to the automobile exhaust gas detection.
The automobile exhaust detection device appearing in the current market, such as the automobile exhaust detection device based on the thermal imaging technology disclosed in the Chinese patent ZL202010395397.4, realizes the functions of remote monitoring, operation and data processing during automobile exhaust detection, but may cause the problems that effective identification cannot be realized and the positioning is inaccurate due to the adoption of a single thermal imaging technology.
Disclosure of Invention
The invention aims to provide an automobile exhaust detection device and a detection method based on infrared double vision and ultrasonic positioning, and solves the technical problems that in the prior art, the automobile exhaust detection device adopts a single thermal imaging technology, so that the automobile exhaust detection device cannot be effectively identified and is inaccurate in positioning.
In order to solve the technical problems, the invention adopts the following technical scheme:
an automobile exhaust detection device based on infrared double vision and ultrasonic positioning comprises an exhaust collection device, a mobile detection device, an infrared thermal imaging double vision positioning module, an ultrasonic positioning module, an exhaust detection device, a purifier and a processor module;
the mobile detection device searches the position of the tail gas port through moving and positioning in the horizontal direction; the tail gas collecting device is in butt joint with the tail gas pipe after moving in the vertical direction; the infrared thermal imaging double-vision positioning module continuously generates, transmits back, analyzes and processes thermodynamic images and calibrates the space coordinate of the tail gas port of the automobile to be measured in real time;
the ultrasonic positioning module is used for determining the relative position of the tail gas acquisition device and the tail gas pipe so that the tail gas acquisition device and the tail gas pipe are in butt joint; the mobile detection device is connected with the tail gas detection device, and the tail gas detection device is connected with the purifier;
and the tail gas acquisition device, the mobile detection device, the infrared thermal imaging double-vision positioning module, the ultrasonic positioning module, the tail gas detection device and the electrical assembly of the purifier are electrically connected with the processor module.
Further optimizing, the tail gas collecting device comprises a tail gas collecting pipe, a rotating bracket and an electric telescopic rod; the tail gas collecting pipe is made of a thermally stable and flexible material and is fixed on the rotating support, and the rotating support is provided with a rotating motor which can enable the tail gas collecting pipe to rotate freely in a vertical plane;
the front end of the tail gas collecting pipe is fixedly connected with the heat-resistant rubber reducing pipe; a collision sensor is arranged in the heat-resistant rubber reducing pipe and used for monitoring the relative position of the heat-resistant rubber reducing pipe and the tail gas pipe; the electric telescopic rod can adjust the height of the pipe orifice of the tail gas collecting pipe in the vertical direction, and is arranged in front of the double monitors and close to the tail part of the automobile; the electric telescopic rod is controlled by the processor module.
Further preferably, the movement detection device comprises a bottom platform, a bottom platform moving mechanism, an object carrying platform and an object carrying platform moving mechanism;
the bottom platform and the carrying platform are both of cuboid plate structures; the loading platform and the loading platform moving mechanism are installed on the bottom platform, and the infrared thermal imaging double-vision positioning module, the ultrasonic positioning module, the tail gas detection device, the processor module and the tail gas acquisition device are all installed on the loading platform.
Further preferably, the bottom platform moving mechanism comprises a sliding guide rail, a screw rod, a first motor and two support plates; the sliding guide rail, the first motor and the two support plates are fixed on the bottom plate;
the two ends of the lead screw are rotatably connected with the support plate, the first motor is used for driving the lead screw to rotate, the lead screw is arranged in parallel with the sliding guide rail, and the lead screw is positioned on two sliding guide rail paper pieces;
the lead screw is arranged below the bottom platform, a sliding block is sleeved on the lead screw and is in threaded connection with the lead screw, the sliding block is fixedly connected with the bottom surface of the bottom platform, two first sliding grooves are formed in the bottom surface of the bottom platform, the sliding guide rail is movably clamped in one corresponding first sliding groove, and the lead screw drives the lead screw to rotate to drive the bottom platform to reciprocate along the X direction.
Further preferably, the carrying platform moving mechanism comprises a carrying frame plate, two carrying slide rails and a carrying platform driving part;
two year thing slide rails are fixed on bottom platform upper surface, and the bottom surface of carrying the thing frame plate is provided with two second spouts, and the carrying the thing frame plate passes through the movable card of second spout to be established on carrying the thing slide rail, still is fixed with the objective table driving piece on the carrying the thing frame plate, and the objective table driving piece is the cylinder for drive objective table realizes Y direction reciprocating motion along carrying the thing slide rail.
Further optimizing, the infrared thermal imaging double-vision positioning module comprises a natural light supplementary lighting device and a double-vision monitor;
the natural light supplementing device is arranged near a rear wheel drum of the chassis dynamometer; the natural light supplementing device comprises a light sensor and an artificial natural light source, the light sensor is connected with the processor module through a wire, and whether the artificial natural light source is needed to perform automatic natural light or not can be judged according to light conditions; the double-vision monitor comprises an infrared camera and a visible light camera which are arranged in parallel and fixed in the center of the loading platform, and the identification and the positioning of the tail gas port are realized through a double-vision same-visual-field image identification and correction algorithm.
Further optimizing, the tail gas detection device comprises a tail gas storage tank, a particle detector, a component detector and a gas one-way valve;
tail gas storage jar and tail gas acquisition union coupling, granule detector and composition detector all set up in the tail gas storage jar, and granule detector, composition detector can accomplish the detection to tail gas, and the tail gas storage jar passes through gaseous check valve to be connected with the clarifier, and gaseous check valve allows gaseous from tail gas storage jar flow direction clarifier, and the gaseous final clarifier of passing through after the detection discharges to the air.
Further optimizing, the purifier tank body is arranged on the carrier plate and is a cylinder, and the solid crystalline urea automobile exhaust purifying agent and the active carbon are placed in the purifier tank body.
The tail gas detection method of the automobile tail gas detection device based on the infrared double vision and ultrasonic positioning comprises the following steps:
s1: the automobile to be tested enters a chassis dynamometer, the automobile starts to run in an idling mode, and the light supplementing device starts to work;
s2: the infrared thermal imaging double-vision positioning module starts to work, position electric signals are transmitted to the processor module, the processor module controls the bottom platform moving mechanism to work, and when a preset target position is reached, the bottom platform moving mechanism stops running;
s3: the ultrasonic positioning module starts to work, the ultrasonic image of the tail gas port is drawn, the relative position electric signal is transmitted to the processor module, the processor module drives the electric telescopic rod to ascend from the lowest position, the ultrasonic image is drawn discontinuously, when the graph is processed to be approximately round, the processor module transmits the electric signal to the electric telescopic rod, and the electric telescopic rod stops moving;
s4: when the electric telescopic rod stops moving, the object carrying platform moving mechanism starts to work, and moves from a position far away from the tail of the automobile to a position close to the tail of the automobile, in the moving process, the infrared thermal imaging double-vision positioning module starts to work again, the infrared and camera of the infrared thermal imaging double-vision positioning module intermittently shoots to obtain images along with the front end of the tail gas collecting pipe entering the tail gas pipe orifice, when the infrared images cannot detect the complete thermal infrared images of the tail gas orifice, the visible light images cannot detect the complete images of the tail gas orifice and the collision sensor sends a collision signal, the electric signals are transmitted to the processor module, the processor module sends a termination signal to the object carrying platform moving mechanism, and the object carrying platform moving mechanism stops moving;
s5: the tail gas detection device starts to work, transmits data acquired during detection to the processor module to obtain a detection result, and transmits the detection result to the detection result client and the display;
s6: and after the detection is finished, the processor module sends out a homing electric signal, each part is restored to the initial position, the automobile is driven away, and the next automobile continues to carry out tail gas detection according to the steps.
Further optimization, in step S2, the specific process of the infrared thermal imaging dual view positioning module is as follows:
s21, field matching and adjusting of the infrared image and the visible light image;
s22, storing initial target shapes and positions in the infrared image and the visible light image;
s23, identifying target positions in the infrared image and the visible light image by comparing the pre-calibrated standard images;
s24, calculating the deviation between the current position and the initial position of the target in the infrared image;
s25, the current position of the target in the visible light image deviates from the initial position;
s26, identifying the actual position of the current target by using a graph through a double-vision complementary target correction method; during the period, the bottom platform moving mechanism starts to operate, the processes from S21 to S26 are intermittently completed, the position electric signal is transmitted to the processor module, the processor module controls the bottom platform moving mechanism to work, and when the preset target position is reached, the bottom platform moving mechanism stops operating.
Compared with the prior art, the invention has the following beneficial effects:
according to the tail gas detection device, the infrared thermal imaging double-vision positioning module is utilized to obtain the position information of the automobile tail gas port according to the formed infrared image and visible image, the relative position of the device and the tail gas port is obtained through ultrasonic positioning, the tail gas collecting pipe extends into the automobile tail gas port through the movement of the bottom platform moving mechanism, the carrying platform moving mechanism and the electric telescopic rod, and the tail gas is introduced into the tail gas detection module, so that the detection of the tail gas is realized. The invention has the advantages that the tail gas detection device can automatically detect the tail gas, realize the accurate identification of the tail gas port and reduce the health damage to people caused by manual operation.
Drawings
FIG. 1 is a schematic structural diagram of an automobile exhaust detection device based on infrared double vision and ultrasonic positioning according to the invention;
FIG. 2 is a partial schematic view of an infrared double-vision and ultrasonic positioning-based automobile exhaust detection device according to the present invention;
FIG. 3 is a schematic view of a bottom moving device of the automobile exhaust detection device based on infrared double vision and ultrasonic positioning according to the present invention;
FIG. 4 is a flow chart of the detection according to the present invention.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all embodiments.
The first embodiment is as follows:
as shown in fig. 1-3, an automobile exhaust detection device based on infrared double vision and ultrasonic positioning comprises an exhaust collection device 8, a mobile detection device, an infrared thermal imaging double vision positioning module 7, an ultrasonic positioning module 9, an exhaust detection module 5, a purifier 6 and a processor module. The mobile detection device realizes the search with the tail gas port through the movement and the positioning in the horizontal direction; the tail gas collecting device 8 is in butt joint with a tail gas pipe through moving in the vertical direction, the infrared thermal imaging double-vision positioning module 7 continuously generates, transmits back, analyzes and processes thermodynamic images, and spatial coordinates of a tail gas port of the automobile to be detected are calibrated in real time; the ultrasonic positioning module 9 completes the relative position determination to facilitate the butt joint of the tail gas acquisition device 8 and the tail gas pipe; the mobile detection device is connected with the tail gas detection device 5, the tail gas detection device 5 is connected with the purifier 6, and the processor module is connected with each device and drives each device to normally operate.
In this embodiment, the exhaust gas collecting device 8 includes an exhaust gas collecting pipe 11, a rotating bracket 10, and an electric telescopic rod 14; the tail gas collecting pipe 11 is made of a thermal stable and flexible material, Polydimethylsiloxane (PDMS), the tail gas collecting pipe 11 is installed on the rotary support 10, the rotary support 10 can enable the tail gas collecting pipe 11 to freely rotate in a vertical plane, the front end of the tail gas collecting pipe 11 is fixedly connected with the heat-resistant rubber reducing pipe 13, the heat-resistant rubber reducing pipe 13 can enable the tail gas collecting pipe 11 to be better attached to an automobile tail gas port, environmental pollution caused by overflow of automobile tail gas is reduced, the rotary support 10 and the heat-resistant rubber reducing pipe 13 can be designed on the premise that sealing connection is guaranteed, the device can be also adapted to automobiles with inclined exhaust pipes and tail gas pipes with different calibers, and therefore the application range of the device is further improved. The height of the pipe orifice of the tail gas collecting pipe 11 can be adjusted in the vertical direction by the electric telescopic rod 14, the electric telescopic rod 14 is installed in the position close to the tail of the automobile in front of the double monitors, and the electric telescopic rod 14 is controlled by the processor module to complete telescopic motion.
In this embodiment, the movement detection device includes a bottom platform 2, a bottom platform moving mechanism 1, a loading platform 3, and a loading platform moving mechanism 4. The bottom platform 2 and the loading platform 3 are both of cuboid structures. Install cargo platform 3 and cargo platform moving mechanism 4 on the platform 2 of bottom, tail gas collection device 8, infrared thermal imaging look orientation module 7, ultrasonic wave orientation module 9, tail gas detection device 5 and processor module install on cargo platform 3.
As shown in fig. 3, the bottom platform moving mechanism 1 includes a sliding guide rail 13, a lead screw 14, a first motor and two support plates 16; the sliding guide rail 13, the first motor and the two support plates are fixed on the bottom plate; the two ends of the lead screw are rotatably connected with the support plate, the first motor is used for driving the lead screw to rotate, the lead screw is arranged in parallel with the sliding guide rail, and the lead screw is positioned on two sliding guide rail paper pieces; the lead screw is arranged below the bottom platform, a sliding block 15 is sleeved on the lead screw 14, the sliding block 15 is in threaded connection with the lead screw 14, the sliding block is fixedly connected with the bottom surface of the bottom platform, two first sliding grooves are formed in the bottom surface of the bottom platform, the sliding guide rail is movably clamped in one corresponding first sliding groove, and the lead screw drives the lead screw to rotate to drive the bottom platform 2 to reciprocate along the X direction.
In this embodiment, the moving mechanism of the carrier platform 3 includes a carrier plate, two carrier rails and a carrier platform driving member; two year thing slide rails are fixed on 2 upper surfaces of bottom platform, and the bottom surface of carrying the thing frame plate is provided with two second spouts, and the carrying the thing frame plate passes through the movable card of second spout to be established on carrying the thing slide rail, still is fixed with the carrying platform driving piece on the carrying the thing frame plate, and the carrying platform driving piece is the cylinder for drive carrying platform 3 realizes Y direction reciprocating motion along carrying the thing slide rail.
In this embodiment, the infrared thermal imaging dual-view positioning module 7 is composed of a natural light supplement device and a dual-view monitor. The natural light supplementing device is arranged near a rear wheel rotating drum of the chassis dynamometer, and supplements light intensity irradiated at an exhaust port when a light line component is poor, so that good working conditions are provided for the visible light camera. The double-vision monitor is installed in parallel by an infrared camera and a visible light camera and fixed in the center of the loading platform 3, the double-vision monitor is arranged obliquely upwards, and the identification and the positioning of the tail gas port are realized through a double-vision same-view image identification and correction algorithm. In the working process, the infrared image and the visible light image are transmitted to a processor system, and the processor system sends an instruction to control the operation of the bottom platform moving mechanism 1 and the loading platform moving mechanism 4, so that the horizontal working position of the device is determined. The ultrasonic positioning module 9 is fixed on one side of the rotating bracket 10 through relative position information acquired by an image generated by a sensor, so as to drive the electric telescopic rod 14 to work. And converting the information of the two modules into an electric signal, and calibrating the coordinates of the automobile exhaust pipe in real time until the tail gas collecting pipe 11 enters the automobile exhaust pipe.
By adopting the technical scheme, the implementation principle of the embodiment is as follows: the tail gas collecting device 8 is driven to move in a three-dimensional space by the bottom platform moving mechanism 1, the loading platform moving mechanism 4 and the electric telescopic rod 14. The determination of the moving site is determined by the infrared thermal imaging double-vision positioning module 7 and the ultrasonic positioning module 9, the processor module receives the visual image and the infrared image of the tail gas port and the image generated by the ultrasonic positioning module 9, and the three images are intermittently acquired, so that an electric signal is generated according to the site information, and the mechanism is controlled to operate.
In the present embodiment, the exhaust gas detection device 5 includes an exhaust gas storage tank, a particle detector, a composition detector, and a gas check valve 12. Gaseous tail gas storage jar is connected with tail gas acquisition pipe 11, and tail gas storage jar passes through gaseous check valve 12 and is connected with clarifier 6, and gaseous check valve 12 allows gas to flow to clarifier 6 from tail gas storage jar, can prevent that tail gas storage jar internal pressure from too big causing the damage to the instrument and also can prevent that 6 too fast absorption tail gas of clarifier from causing the testing result inaccurate, and the gas after the detection finally discharges to the air through 6 purifiers.
In this embodiment, the tank of the purifier 6 is a cylinder, and the solid crystalline urea automobile exhaust purifying agent and the activated carbon are placed in the tank.
Example two:
as shown in fig. 4, a method for detecting exhaust based on infrared thermal imaging double vision and ultrasonic positioning includes the following steps:
and S1, the automobile to be tested enters a chassis dynamometer, the automobile starts to run in an idling mode, and the light supplementing device starts to work.
S2, the infrared thermal imaging double-vision positioning module 7 starts to work, and the working method comprises the following steps: a. adjusting the visual field matching of the infrared image and the visible light image; b. the module is used for storing the initial target shape and position in the infrared image and the visible light image; c. identifying the target position in the infrared image and the visible light image by comparing a pre-calibrated standard image (parameters comprise equipment distance and an exhaust port position); d. calculating the deviation between the current position and the initial position of the target in the infrared image; e. the current position of the target in the visible light image deviates from the initial position; f. the actual position of the current target is identified graphically by a dual view complementary target correction method. During the period, the bottom platform moving mechanism 1 starts to operate, the a-f processes are intermittently completed, the position electric signals are transmitted to the processor module, the processor module controls the bottom platform moving mechanism 1 to work, and when the preset target position is reached, the bottom platform moving mechanism 1 stops operating.
S3, the ultrasonic positioning module 9 starts to work, the ultrasonic images of the tail gas port are drawn, the relative position electric signals are transmitted to the processor module, the processor module drives the electric telescopic rod 14 to ascend from the lowest position, the ultrasonic images are drawn intermittently, when the images are processed to be approximately round, the processor module transmits the electric signals to the electric telescopic rod 14, and the electric telescopic rod 14 stops moving.
S4, after the electric telescopic rod 14 stops moving, the object carrying platform moving mechanism 4 starts to work, the object carrying platform moving mechanism starts to move from a position far away from the tail of the automobile to a position close to the tail of the automobile, in the moving process, the infrared thermal imaging double-vision positioning module 7 starts to work again, the infrared and camera of the infrared thermal imaging double-vision positioning module 7 intermittently shoots to obtain images along with the front end of the tail gas collecting pipe 11 entering the tail gas pipe orifice, when the infrared images cannot detect the complete thermal infrared images of the tail gas port, and the visible light images cannot detect the complete images of the tail gas port, the electric signals are transmitted to the processor module, the processor module sends a termination signal to the object carrying platform moving mechanism 4, and the object carrying platform moving mechanism 4 stops moving.
And S5, the tail gas detection device starts to work, transmits the data acquired during detection to the processor module to obtain a detection result, and transmits the detection result to the detection result client and the display.
And S6, after the detection is finished, the processor sends a homing electric signal, each structure is restored to the initial position, the automobile drives away, and the next automobile continues to carry out tail gas detection according to the steps.
All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Claims (10)
1. The utility model provides an automobile exhaust detection device based on infrared double vision and ultrasonic positioning which characterized in that includes: the device comprises a tail gas acquisition device, a mobile detection device, an infrared thermal imaging double-vision positioning module, an ultrasonic positioning module, a tail gas detection device, a purifier and a processor module;
the mobile detection device searches the position of the tail gas port through moving and positioning in the horizontal direction; the tail gas collecting device is in butt joint with the tail gas pipe after moving in the vertical direction; the infrared thermal imaging double-vision positioning module continuously generates, transmits back, analyzes and processes thermodynamic images and calibrates the space coordinate of the tail gas port of the automobile to be measured in real time;
the ultrasonic positioning module is used for determining the relative position of the tail gas acquisition device and the tail gas pipe so that the tail gas acquisition device and the tail gas pipe are in butt joint; the mobile detection device is connected with the tail gas detection device, and the tail gas detection device is connected with the purifier;
and the tail gas acquisition device, the mobile detection device, the infrared thermal imaging double-vision positioning module, the ultrasonic positioning module, the tail gas detection device and the electrical assembly of the purifier are electrically connected with the processor module.
2. The automobile exhaust detection device based on infrared double vision and ultrasonic positioning of claim 1, wherein the exhaust collection device comprises an exhaust collection pipe, a rotating bracket and an electric telescopic rod; the tail gas collecting pipe is made of a thermally stable and flexible material and is fixed on the rotating support, and the rotating support is provided with a rotating motor which can enable the tail gas collecting pipe to rotate freely in a vertical plane;
the front end of the tail gas collecting pipe is fixedly connected with the heat-resistant rubber reducing pipe; a collision sensor is arranged in the heat-resistant rubber reducing pipe and used for monitoring the relative position of the heat-resistant rubber reducing pipe and the tail gas pipe; the electric telescopic rod can adjust the height of the pipe orifice of the tail gas collecting pipe in the vertical direction, and is arranged in front of the double monitors and close to the tail part of the automobile; the electric telescopic rod is controlled by the processor module.
3. The automobile exhaust detection device based on infrared double vision and ultrasonic positioning according to claim 1 or 2, wherein the movement detection device comprises a bottom platform, a bottom platform moving mechanism, a carrying platform and a carrying platform moving mechanism;
the bottom platform and the carrying platform are both of cuboid plate structures; the loading platform and the loading platform moving mechanism are installed on the bottom platform, and the infrared thermal imaging double-vision positioning module, the ultrasonic positioning module, the tail gas detection device, the processor module and the tail gas acquisition device are all installed on the loading platform.
4. The automobile exhaust detection device based on infrared double vision and ultrasonic positioning of claim 3, wherein the bottom platform moving mechanism comprises a sliding guide rail, a lead screw, a first motor and two support plates; the sliding guide rail, the first motor and the two support plates are fixed on the bottom plate;
the two ends of the lead screw are rotatably connected with the support plate, the first motor is used for driving the lead screw to rotate, the lead screw is arranged in parallel with the sliding guide rail, and the lead screw is positioned on two sliding guide rail paper pieces;
the lead screw is arranged below the bottom platform, a sliding block is sleeved on the lead screw and is in threaded connection with the lead screw, the sliding block is fixedly connected with the bottom surface of the bottom platform, two first sliding grooves are formed in the bottom surface of the bottom platform, the sliding guide rail is movably clamped in one corresponding first sliding groove, and the lead screw drives the lead screw to rotate to drive the bottom platform to reciprocate along the X direction.
5. The automobile exhaust detection device based on infrared double vision and ultrasonic positioning as claimed in claim 4, wherein the carrying platform moving mechanism comprises a carrying frame plate, two carrying slide rails and a carrying platform driving member;
two year thing slide rails are fixed on bottom platform upper surface, and the bottom surface of carrying the thing frame plate is provided with two second spouts, and the carrying the thing frame plate passes through the movable card of second spout to be established on carrying the thing slide rail, still is fixed with the objective table driving piece on the carrying the thing frame plate, and the objective table driving piece is the cylinder for drive objective table realizes Y direction reciprocating motion along carrying the thing slide rail.
6. The automobile exhaust detection device based on infrared double vision and ultrasonic positioning as claimed in claim 5, wherein the infrared thermal imaging double vision positioning module comprises a natural light supplementary lighting device and a double vision monitor;
the natural light supplementing device is arranged near a rear wheel drum of the chassis dynamometer; the natural light supplementing device comprises a light sensor and an artificial natural light source, the light sensor is connected with the processor module through a wire, and whether the artificial natural light source is needed to perform automatic natural light or not can be judged according to light conditions; the double-vision monitor comprises an infrared camera and a visible light camera which are arranged in parallel and fixed in the center of the loading platform, and the identification and the positioning of the tail gas port are realized through a double-vision same-visual-field image identification and correction algorithm.
7. The automobile exhaust detection device based on infrared double vision and ultrasonic positioning is characterized by comprising an exhaust storage tank, a particle detector, a composition detector and a gas one-way valve, wherein the exhaust storage tank is arranged in the automobile exhaust detection device;
tail gas storage jar and tail gas acquisition union coupling, granule detector and composition detector all set up in the tail gas storage jar, and granule detector, composition detector can accomplish the detection to tail gas, and the tail gas storage jar passes through gaseous check valve to be connected with the clarifier, and gaseous check valve allows gaseous from tail gas storage jar flow direction clarifier, and the gaseous final clarifier of passing through after the detection discharges to the air.
8. The automobile exhaust detection device based on infrared double vision and ultrasonic positioning as claimed in claim 1, wherein the purifier tank is mounted on the carrier plate and is a cylinder, and the purifier tank is filled with the solid crystalline urea automobile exhaust purifying agent and activated carbon.
9. The method for detecting the exhaust of the automobile exhaust detection device based on the infrared double-vision and ultrasonic positioning of any one of the claims 1 to 8 is characterized by comprising the following steps of:
s1: the automobile to be tested enters a chassis dynamometer, the automobile starts to run in an idling mode, and the light supplementing device starts to work;
s2: the infrared thermal imaging double-vision positioning module starts to work, position electric signals are transmitted to the processor module, the processor module controls the bottom platform moving mechanism to work, and when a preset target position is reached, the bottom platform moving mechanism stops running;
s3: the ultrasonic positioning module starts to work, the ultrasonic image of the tail gas port is drawn, the relative position electric signal is transmitted to the processor module, the processor module drives the electric telescopic rod to ascend from the lowest position, the ultrasonic image is drawn discontinuously, when the graph is processed to be approximately round, the processor module transmits the electric signal to the electric telescopic rod, and the electric telescopic rod stops moving;
s4: when the electric telescopic rod stops moving, the object carrying platform moving mechanism starts to work, and moves from a position far away from the tail of the automobile to a position close to the tail of the automobile, in the moving process, the infrared thermal imaging double-vision positioning module starts to work again, the infrared and camera of the infrared thermal imaging double-vision positioning module intermittently shoots to obtain images along with the front end of the tail gas collecting pipe entering the tail gas pipe orifice, when the infrared images cannot detect the complete thermal infrared images of the tail gas orifice, the visible light images cannot detect the complete images of the tail gas orifice and the collision sensor sends a collision signal, the electric signals are transmitted to the processor module, the processor module sends a termination signal to the object carrying platform moving mechanism, and the object carrying platform moving mechanism stops moving;
s5: the tail gas detection device starts to work, transmits data acquired during detection to the processor module to obtain a detection result, and transmits the detection result to the detection result client and the display;
s6: after the detection is finished, the processor module sends out a homing electric signal, and all the components are restored to the initial positions.
10. The exhaust gas detection method according to claim 9, wherein in step S2, the infrared thermography double view positioning module comprises the specific processes of:
s21, field matching and adjusting of the infrared image and the visible light image;
s22, storing initial target shapes and positions in the infrared image and the visible light image;
s23, identifying target positions in the infrared image and the visible light image by comparing the pre-calibrated standard images;
s24, calculating the deviation between the current position and the initial position of the target in the infrared image;
s25, the current position of the target in the visible light image deviates from the initial position;
s26, identifying the actual position of the current target by using a graph through a double-vision complementary target correction method; meanwhile, the bottom platform moving mechanism starts to operate, and the processes from S21 to S26 are completed discontinuously.
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