CN116296473B - Remote monitoring alarm system for high-speed durability test of tire and building method - Google Patents
Remote monitoring alarm system for high-speed durability test of tire and building method Download PDFInfo
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- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
- G01M17/02—Tyres
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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- G—PHYSICS
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Abstract
The application relates to a remote monitoring alarm system for a high-speed endurance test of a tire and a construction method thereof, wherein the system comprises an on-line continuous monitoring system for peculiar smell based on an artificial olfactory system and a tire state alarm system, and the on-line continuous monitoring system for peculiar smell consists of a preprocessing unit, a sampling unit, an analysis unit and a data acquisition control and transmission unit; the tire state alarm system is used for sending alarm information to the tire detection testing machine and the remote control terminal through the data acquisition control and transmission unit when the on-line continuous odor monitoring system detects that the odor exceeds the sensing threshold value of the feature gas without dimension odor when the tire is damaged. The application can realize remote monitoring and alarm shutdown of the tire in the endurance test process, and accurately measure the endurance test time of the tire.
Description
Technical Field
The invention relates to the technical field of tire detection, in particular to a tire high-speed durability test remote monitoring alarm system and a building method thereof.
Background
The high-speed endurance test of the tire is an important content of the indoor test of the tire performance, and at present, the high-speed endurance test machine of enterprises and detection institutions at home and abroad is only provided with an anti-riot fork or noise detection device, can only give an alarm and stop, and does not have an online monitoring alarm system. In the endurance test process of the tire, due to the high-speed operation of equipment, a certain danger exists in the test room, and toxic and harmful gas can be released in the test process, so that a tester cannot observe the test state of the tire in a short distance for a long time. In addition, in the process of the tire rapid rotation, no matter the camera or human eyes can accurately identify the tiny change of the tire, a manual regular inspection mode is generally adopted to judge the test state of the tire, and the time of the tire damage can not be accurately measured. In the whole high-speed endurance test process, a plurality of test personnel are required to carry out 24-hour guard and periodically patrol, a large amount of manpower is occupied, and the guard personnel can easily take off duty to sleep in night shifts, so that huge potential safety hazards are generated in the whole test process. In addition, personnel periodically patrol and examine the limit of the existing time period, and the abnormal condition of the tire can not be found in time, so that the accuracy and the scientificity of the whole test process and test data are affected.
Disclosure of Invention
The invention aims to provide a remote monitoring alarm system for a high-speed durability test of a tire, which is used for remotely monitoring and alarming the tire to stop in the process of the durability test and solving the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions:
The remote monitoring alarm system for the high-speed endurance test of the tire is applied to the high-speed endurance test of the tire, can be matched with various types of tire endurance test machines to realize the detection of the high-speed endurance of the tire, wherein the system comprises an on-line continuous odor monitoring system based on an artificial olfactory system and a tire state alarm system, the on-line continuous odor monitoring system is used for continuously analyzing and measuring the odor of gas released by the automobile tire in the high-speed endurance test, and the on-line continuous odor monitoring system consists of a preprocessing unit, a sampling unit, an analysis unit, a data acquisition control unit and a transmission unit; the pretreatment unit is used for purifying the sample gas before analysis and preventing the interference of particulate matters and water to the analysis unit; the pretreatment unit consists of a sampling probe, a sampling pipeline, a gas-water separator and a hydrophobic filter; the sampling unit is used for providing a constant flow sample gas for the analysis unit and consists of a sampling pump, a flow limiting valve and an electronic flowmeter; the analysis unit is used for sampling and analyzing the sample gas in real time and consists of an analysis chamber and a zero gas generator; a gas sensor array and a conditioning circuit are arranged in the analysis chamber; the data acquisition control and transmission unit is used for executing sampling instructions, controlling the operation of the analysis unit, acquiring data and linking with other equipment, and consists of an ARM processor, an embedded computer, a man-machine interface, a wireless transmission module and a wired signal interface; the tire state alarm system is used for sending alarm information to the tire detection testing machine and the remote control terminal through the data acquisition control and transmission unit when the on-line continuous odor monitoring system detects that the odor exceeds the sensing threshold value of the feature gas without dimension odor when the tire is damaged.
Further, the pretreatment unit is formed by sequentially connecting a sampling probe, a gas-water separator and a hydrophobic filter through sampling pipelines, wherein the sampling probe is used for accurately sampling a sampling point, has good tightness and is not influenced by positive and negative pressure; the sampling pipeline adopts a stainless steel pipe or a polytetrafluoroethylene pipe which does not react with the gas so as to reduce the loss of the gas in the sampling process; the gas-water separator is used for preventing visible water from entering the system and preventing the odor monitoring system from being blocked; the hydrophobic filter is arranged in front of the analysis device, and can carry out secondary filtration on fine particles and a small amount of water vapor, so that the gas sensor can work stably for a long time.
Further, the sampling pump adopts an inlet large-flow sampling pump, can support multiple modes such as uninterrupted sampling, timing sampling, multichannel time-sharing sampling, external control sampling and the like for 7 x 24 hours, and the sampling rate of the sampling pump can be 1L/min; the flow limiting valve adopts a needle valve with a polytetrafluoroethylene or quartz glass structure; the electronic flowmeter adopts a micro pore plate structure and is made of polytetrafluoroethylene materials and is used for collecting sample gas flow in real time, and when the sample gas flow deviates from the effective range, the sample gas flow can be perceived by a data collection system to inform maintenance personnel to the scene for maintenance.
Further, the whole analysis chamber is placed in a constant temperature device, and comprises a gas sensor array and a conditioning circuit part; the analysis chamber is internally provided with a gas sensor array consisting of 8 to 10 groups of gas sensors, and the gas sensor array and a group of temperature and humidity sensors are arranged in a polytetrafluoroethylene flow cell together and are in signal connection with the data acquisition control and transmission unit.
Further, the gas sensor is manufactured by synthesizing a high-selectivity gas sensitive material which is sensitive to the peculiar smell gas component specificity of the rubber after sampling and analyzing the gas released in the whole process of the tire durability test and based on the gas sensitive material.
Further, the human-computer interface adopts a 4.3-inch high-definition touch screen, the wireless transmission module is used for wirelessly transmitting data to a cloud platform or any server appointed by a user, and the wired signal interface comprises a 485 interface with a MODBUS and a 1-way alarm output interface.
Further, the parts of the components, which are in contact with the sample gas, are made of polytetrafluoroethylene, 316L stainless steel or quartz glass.
Further, the analysis unit main body is arranged outside the test room in a wall-hanging mode, the sampling point is arranged above or beside the test machine, and the sampling point is connected with the analysis unit through a polytetrafluoroethylene or stainless steel tube.
A method for constructing a remote monitoring alarm system for a high-speed durability test of a tire comprises the following steps: step S1, synthesizing a high-selectivity gas sensitive material and manufacturing a gas sensor; step S2, building an on-line continuous odor monitoring system for continuously analyzing and measuring the odor of the gas released by the automobile tire in a high-speed durability test; the odor online continuous monitoring system is the odor online continuous monitoring system based on the artificial olfactory system; s3, constructing an odor evaluation model based on the gas sensor data based on the constructed odor online continuous monitoring system; and S4, performing simulation tests on tires of different specifications and models, accumulating data, analyzing the test data, finding out sensing thresholds of feature gas without dimension peculiar smell when the tires of different specifications and models are damaged, and establishing a tire state alarm system.
Further, the step S1 specifically includes the following steps: and S11, sampling and analyzing the odor components released in the whole process of the tire durability test by adopting a gas chromatograph-mass spectrometer. And S12, synthesizing a high-selectivity gas sensitive material which is specifically sensitive to the rubber peculiar smell gas component, and manufacturing the gas sensor.
Further, the gas sensitive material in the step S12 adopts lead sulfide and tin oxide colloidal quantum dots as the gas sensitive material, a room temperature spin coating method is used for forming a film, and an organic ligand is used for replacing to form a device, so that a flexible gas sensor which rapidly responds to characteristic gas at room temperature is designed and prepared.
Further, the step S2 specifically includes the following steps: step S21, sequentially connecting a sampling probe, a gas-water separator and a hydrophobic filter through a sampling pipeline to form a pretreatment unit; step S22, sequentially connecting a sampling pump, a flow limiting valve and an electronic flowmeter to form a sampling unit for providing constant flow sample gas; step S23, a gas sensor array formed by 8 to 10 groups of gas sensors and a group of temperature and humidity sensors are arranged in a flow cell and are arranged in an analysis chamber together with a conditioning circuit, and then the analysis chamber is integrally arranged in a constant temperature device to form an analysis unit together with a zero gas generator; step S24, the main body of the analysis unit is arranged outside the test room in a wall-hanging mode, sampling points are arranged above or beside the test machine, and the sampling points are connected with the analysis unit through polytetrafluoroethylene or stainless steel pipes; step S25, an ARM processor, an embedded computer, a man-machine interface, a wireless transmission module and a wired signal interface are assembled into a data acquisition control and transmission unit for executing sampling instructions, controlling the operation of an analysis unit, acquiring data and linking with other equipment.
Further, in the step S3, the method for constructing the odor evaluation model based on the on-line continuous odor monitoring system is suitable for constructing the odor evaluation model by using the response data of the gas sensor array to the mixed gas released in the high-speed durability test of the automobile tire, and specifically includes the following steps: s31, performing a durability test on a plurality of groups of target tires, sampling and recording characteristic gas components and concentrations released by the plurality of groups of target tires in the durability test by adopting a built peculiar smell online continuous monitoring system; step S32, extracting various representative characteristic values according to original sensor response data, researching the mutual modulation action among the characteristic values, arranging and combining the characteristic values, simultaneously using the characteristic values for training a machine learning algorithm, realizing the accurate and rapid association of sensor data and dimensionless peculiar smell, and establishing an association model of an artificial olfactory system recognition result and dimensionless peculiar smell standard;
Further, the step S32 further includes, on the basis of completing the odor evaluation of the whole gas in the pipeline, applying a dynamic gas distribution system to realize the combination and collocation of the components of the odor gas, and exploring the influence of different components and combinations of the gas on the dimensionless odor by combining with the artificial olfactory system to realize the dissociative analysis of the dimensionless odor.
The method is applied to a tire high-speed durability test remote monitoring alarm system constructed according to the method, and comprises the following steps: step S001, firstly, setting an induction threshold value of characteristic gas without dimension peculiar smell when a tire corresponding to a target tire is damaged through a human-computer interface of a remote control terminal or a data acquisition control and transmission unit by a tester; step S002, starting the tire detection testing machine, starting the sampling pump, and sending a pulse per second switching value signal to the data acquisition control and transmission unit after the tire detection testing machine is started, wherein the data acquisition control and transmission unit realizes timing by a pulse per second technology; step S003, a sampling pump provides a constant flow sample gas at a sampling rate of 1L/min, so that the measured gas can reach an analysis unit in real time; step S004, sampling and analyzing the sample gas in real time by utilizing an analysis unit; step S005, when the gas sensor array detects that the peculiar smell exceeds the sensing threshold value, alarm information is sent to the data acquisition control and transmission unit, and the data acquisition control and transmission unit transmits the alarm information to the remote control terminal and the tire detection testing machine; step S006, alarming and stopping.
A method for guiding the improvement of the tire production process by utilizing a remote monitoring alarm system for the high-speed durability test of the tire constructed according to the method comprises the following steps: step S011, performing durability tests under the same conditions on a plurality of groups of target tires under different production processes, sampling and recording characteristic gas components, concentration, damage degree and corresponding time released by the target tires under the different production processes in the durability tests by adopting a built online continuous odor monitoring system; and S012, analyzing the sampling result in the step S011 by using an odor evaluation model, and exploring the specific influence of different production processes on the odor and main gas components causing the influence, thereby providing directions for subsequent process improvement.
Compared with the prior art, the invention has the following beneficial effects:
(1) When the gas sensor is used for measuring the damage of the tire, the concentration change of the released characteristic gas gives an alarm and stops, the endurance test time of the tire is accurately measured, and unattended operation is achieved.
(2) The flexible gas sensor which is fast responsive to characteristic gas at room temperature is designed and prepared by adopting lead sulfide and tin oxide colloidal quantum dots as gas sensitive materials, forming a film by a room temperature spin coating method and forming a device by assisting in replacement of an organic ligand.
(3) The method has the advantages that the concentration information of the released tire gas is continuously and online monitored through the artificial smell monitoring system, the emission rule of the tire gas in the testing process is quickly known, an alarm system capable of accurately identifying the testing state of the tire is established, and the accurate and quick association of sensor data and dimensionless peculiar smell generated by the tire durability test is realized.
(4) The problems of labor and time consumption, time delay, slow data reporting, unsafe experimental environment and the like caused by the manual monitoring of the existing test are solved, the management level of a laboratory can be effectively improved, the health of personnel is ensured, and an accurate and reliable method is provided for scientifically making a test flow.
(5) The invention can analyze the specific influence of different production processes on the peculiar smell of the gas released by the tire and the main gas components influencing the specific influence, and provides guidance for improving the production process of the automobile tire.
Drawings
FIG. 1 is a block diagram of a remote monitoring alarm system for a tire high speed endurance test of the present invention;
FIG. 2 is a schematic diagram of a remote monitoring and warning system for a high-speed endurance test of a tire according to the present invention;
FIG. 3 is a flow chart of a method for constructing a remote monitoring alarm system for a tire high-speed durability test according to the present invention;
FIG. 4 is a flow chart of a remote monitoring and alarming method for a high-speed endurance test of a tire according to the present invention;
FIG. 5 is a flow chart of a method of the present invention for guiding an improvement in a tire manufacturing process using a tire high speed endurance test remote monitoring alarm system.
Reference numerals
100. Tire high speed endurance test remote monitoring alarm system, 101, odor online continuous monitoring system, 102, tire condition alarm system, 110, pretreatment unit, 120, sampling unit, 130, analysis unit 130, 140, data acquisition control and transmission unit, 111, sampling probe, 112, sampling pipe, 113, gas-water separator, 114, hydrophobic filter, 121, sampling pump, 122, restrictor valve, 123, electronic flowmeter, 131, analysis chamber, 132, zero gas generator, 133, gas sensor array, 134, conditioning circuit, 135, temperature and humidity sensor
Examples
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the invention, are within the scope of the invention.
The inventor finds that a large amount of mixed gas consisting of H 2S、SO2, VOCs and various organic and inorganic gases can be generated in the endurance test process of the tire, particularly the smell organs of a person can be stimulated when the tire is damaged. An artificial olfactory system (E-Nose) is a novel bionic detection instrument designed by simulating the working principle of the olfactory system of mammals, generally comprises a gas sensor array, a pattern recognition system and a computer, and is used in the fields of malodor detection, environment detection, medical care, food storage, food and beverage quality detection and the like. In the artificial olfactory system, the gas sensor array simulates the sensing function of human olfactory neurons, the preprocessing algorithm simulates the signal preprocessing function of human olfactory bulbs, and the pattern recognition algorithm simulates the recognition function of human cerebral cortex. When the target gas molecules contact the surface of the gas sensor, physical adsorption and chemical adsorption occur on the surface of the sensitive film so as to cause the change of the physical and chemical properties of the sensitive film, and the change of the sensitive film is converted into an electric signal through the energy conversion unit and is output to the data acquisition unit. The response signal of the entire sensor array constitutes the response pattern of the target gas. After response signals of different target gas samples are preprocessed by the sensor array, a model is built by using a machine learning algorithm, and new unknown gas can be identified by training the model. Compared with gas chromatography/mass spectrometry (GC-MS) and laser absorption spectrum technologies, the artificial olfaction technology has the advantages of high detection speed, low cost, real-time detection and easy operation, and is very suitable for monitoring the emission of various peculiar smells.
The following is a further description of embodiments of the invention, taken in conjunction with the accompanying drawings:
in one embodiment, as shown in FIG. 1, a tire high speed endurance test remote monitoring alarm system 100 is provided, which is suitable for all types of automobile tire high speed endurance tests, and can be matched with various types of tire endurance test machines to realize detection and alarm of tire high speed endurance. As shown in fig. 1, the system comprises an on-line continuous odor monitoring system 101 based on an artificial olfactory system and a tire state alarm system 102, wherein the on-line continuous odor monitoring system is used for continuously analyzing and measuring the odor of the gas released by the automobile tire in a high-speed durability test, and the on-line continuous odor monitoring system consists of a preprocessing unit 110, a sampling unit 120, an analyzing unit 130 and a data acquisition control and transmission unit 140.
A pretreatment unit 110 for purifying the sample gas before analysis to prevent interference of particulate matter and water in the analysis unit; the pretreatment unit consists of a sampling probe 111, a sampling pipeline 112, a gas-water separator 113 and a hydrophobic filter 114, and the sampling probe, the gas-water separator and the hydrophobic filter are sequentially connected through the sampling pipeline. The sampling probe is used for accurately sampling the sampling points, has good sealing performance, is not influenced by positive and negative pressure, can block the sampling pipeline if more particles are in the sampling points, and can be additionally provided with a timing blowback program according to actual conditions. The sampling pipeline adopts a stainless steel pipe or a polytetrafluoroethylene pipe which does not react with the gas, so as to reduce the loss of the gas in the sampling process. The gas-water separator is used for preventing visible water from entering the system and preventing the odor monitoring system from being blocked. The hydrophobic filter is arranged in front of the analysis device, and can carry out secondary filtration on fine particles and a small amount of water vapor, so that the gas sensor can work stably for a long time.
The sampling unit 120 is used for providing a constant flow of sample gas for the analysis unit, and is composed of a sampling pump 121, a flow limiting valve 122 and an electronic flowmeter 123. The sampling pump adopts an inlet large-flow sampling pump, can support multiple modes such as uninterrupted sampling, timing sampling, multichannel time-sharing sampling, external control sampling and the like for 7 x 24 hours, and the sampling rate of the sampling pump can be 1L/min, so that the measured gas can reach the analysis unit in real time, and the alarm instantaneity is improved. The flow limiting valve adopts a needle valve with a polytetrafluoroethylene or quartz glass structure, and the surface is smooth, scaling-free and corrosion-resistant. The electronic flowmeter adopts a micro pore plate structure and is made of polytetrafluoroethylene materials and is used for collecting sample air flow in real time. When the sample gas flow deviates from the effective range, the sample gas flow is perceived by the data acquisition system, and maintenance personnel are informed of the fact that the sample gas flow arrives at the site for maintenance.
An analysis unit 130 for sampling and analyzing the sample gas in real time, the analysis unit being composed of an analysis chamber 131 and a zero gas generator 132. The analysis chamber is entirely placed inside a thermostat device, including the gas sensor array 133 and conditioning circuitry 134 portions, to prevent temperature variations from affecting the measurements of the gas sensor array. The analysis chamber is internally provided with a gas sensor array consisting of 8 to 10 groups of gas sensors, the sensors are arranged in a polytetrafluoroethylene flow cell, a group of temperature and humidity sensors 135 are arranged at the same time, and finally, the sensor signals are transmitted to a computer for analysis and processing. The sensor array can realize multi-detection method and multi-component simultaneous analysis, not only can accurately measure obvious gases such as CO, H2S, SO, TVOC and the like, but also can realize fuzzy analysis of unknown inorganic and organic gases, and the setting of the alarm threshold value is more accurate through multi-data comprehensive judgment. The multistage adsorption filtering and catalytic combustion device is provided in the zero gas generator to provide pure air for the system, so that an analysis sensor can be calibrated on line in real time, and the measurement accuracy is improved.
The data acquisition control and transmission unit 140 is used for executing sampling instructions, controlling the operation of the analysis unit, acquiring data and linking with other devices, and the data acquisition control and transmission unit consists of an ARM processor, an embedded computer, a man-machine interface, a wireless transmission module and a wired signal interface. The ARM processor adopts a domestic high-power chip, and realizes continuous and automatic operation of the system through programming. The embedded computer is used for running multiple groups of mathematical models required by gas information analysis. The human-computer interface adopts a 4.3-inch high-definition touch screen, and real-time data and curves can be displayed on site. Meanwhile, the system has man-machine interaction functions such as historical report forms, historical curves, parameter setting, alarm recording, on-site control and the like. The test personnel can control the equipment on site through the human-computer interface, set parameters, view data and display on site alarm, and the functions can be realized remotely. The wireless transmission module is used for wirelessly transmitting the data to the cloud platform or any server appointed by a user. The test personnel can realize operations such as retrieving on-site data and real-time state of equipment, remotely controlling the equipment, setting parameters and the like through a browser or a mobile phone APP at any place. The wired signal interface comprises a 485 interface with MODBUS and a 1-way alarm output interface, and the interfaces are specially used for the cooperative work of other facilities.
The tire state alarm system 102 is used for sending alarm information to the tire detection testing machine and the remote control terminal through the data acquisition control and transmission unit when the on-line continuous odor monitoring system detects that the odor exceeds the sensing threshold value of the feature gas without dimension odor when the tire is damaged.
In one embodiment, all the parts of the components, which are in contact with the sample gas, are made of polytetrafluoroethylene, 316L stainless steel and quartz glass, and the materials are basically not reacted or adsorbed with components in the waste gas, so that the authenticity of data analysis is greatly ensured.
In one embodiment, the analysis unit body is mounted outside the test room in a wall-mounted manner, and the sampling point is arranged above or beside the test machine. The sampling point and the analysis unit are connected through a polytetrafluoroethylene or stainless steel tube.
In one embodiment, the tire high-speed durability test remote monitoring alarm system is synchronous with the tire detection testing machine, and the tire detection testing machine sends a pulse per second switching value signal to the data acquisition control and transmission unit after being started, and the data acquisition control and transmission unit realizes timing by a pulse per second technology, so that the accumulated running time of the sampling unit is always the same as that of the tire detection testing machine.
In one embodiment, as shown in fig. 3, a method for building a remote monitoring alarm system for a high-speed durability test of a tire is provided, and the method specifically comprises the following steps:
step S1, synthesizing a high-selectivity gas sensitive material and manufacturing a gas sensor.
In one embodiment, the step S1 specifically includes the following steps:
And S11, sampling and analyzing the odor components released in the whole process of the tire durability test.
Specifically, the step S11 includes sampling the gas released during the whole process in the tire endurance test, and analyzing by a gas chromatograph-mass spectrometer (GC-MS) to obtain specific components and concentrations of the odorous gas.
And S12, synthesizing a high-selectivity gas sensitive material which is specifically sensitive to the rubber peculiar smell gas component, and manufacturing the gas sensor.
Specifically, based on the first sex principle, molecular dynamics, quantum chemistry and other theories, the atomic number, arrangement, components and structure of the quantum dot gas-sensitive material are designed by doping, surface ligand modification and other methods according to the molecular structure and vibration frequency of the gas component of the odor treatment pipeline, so that the reactivity with the target gas in a specific application environment is enhanced. Finally, the high-selectivity gas sensitive material which is sensitive to the specificity of the rubber peculiar smell gas component is obtained, and the gas sensor has good stability and consistency and is suitable for most of tire brands and models.
In one embodiment, the gas-sensitive material in the step S12 uses lead sulfide and tin oxide colloidal quantum dots as the gas-sensitive material, and the device is formed by room temperature spin coating and assisted by organic ligand replacement, so as to design and prepare the flexible gas sensor which rapidly responds to the characteristic gas at room temperature.
And S2, building an on-line continuous odor monitoring system for continuously analyzing and measuring the odor of the gas released by the automobile tire in the high-speed durability test.
The on-line continuous odor monitoring system in the embodiment is the same as the on-line continuous odor monitoring system based on the artificial olfactory system in the first embodiment. The on-line continuous odor monitoring system is used for continuously analyzing and measuring the odor of the gas released by the automobile tire in the high-speed durability test.
In one embodiment, the step S2 specifically includes the following steps:
Step S21, a sampling probe, a gas-water separator and a hydrophobic filter are sequentially connected through a sampling pipeline to form a pretreatment unit.
In one embodiment, in the step S21, if the sampling point is more particles, the sampling pipeline may be blocked, and a timing blowback procedure may be further added according to the actual situation.
Step S22, a sampling pump, a flow limiting valve and an electronic flowmeter are sequentially connected to form a sampling unit for providing constant flow sample gas.
And S23, installing a gas sensor array consisting of 8 to 10 groups of gas sensors and a group of temperature and humidity sensors in the flow cell, installing the gas sensor array and the group of temperature and humidity sensors in an analysis chamber together with a conditioning circuit, and then integrally placing the analysis chamber in a constant temperature device to form an analysis unit together with a zero gas generator.
And step S24, installing a main body of the analysis unit outside the test room in a wall-hanging mode, wherein a sampling point is arranged above or beside the test machine, and the sampling point is connected with the analysis unit through a polytetrafluoroethylene or stainless steel tube.
Step S25, an ARM processor, an embedded computer, a man-machine interface, a wireless transmission module and a wired signal interface are assembled into a data acquisition control and transmission unit for executing sampling instructions, controlling the operation of an analysis unit, acquiring data and linking with other equipment.
And step S3, constructing an odor evaluation model based on the gas sensor data based on the constructed odor online continuous monitoring system.
In one embodiment, a method for constructing an odor evaluation model based on an on-line continuous odor monitoring system is provided. The method is suitable for constructing an odor evaluation model through response data of a gas sensor array to mixed gas released in a high-speed durability test of an automobile tire, and specifically comprises the following steps:
and S31, performing a durability test on a plurality of groups of target tires, sampling and recording characteristic gas components and concentrations released by the plurality of groups of target tires in the durability test by adopting a built peculiar smell online continuous monitoring system.
Specifically, after a target tire is selected, a high-speed durability test is performed on the target tire, and gas released by the tire in the test process is detected by using a gas sensor array, so that original sensor response data are obtained.
Step S32, extracting various representative characteristic values according to original sensor response data, researching the mutual modulation action among the characteristic values, arranging and combining the characteristic values, simultaneously using the characteristic values for training a machine learning algorithm, realizing accurate and rapid association of sensor data and dimensionless peculiar smell, and establishing an association model of an artificial olfactory system recognition result and dimensionless peculiar smell standard.
Representative characteristic values include baseline resistance, area under the phase curve, sensitivity, and curve derivative maximum. The machine learning algorithm may select linear discriminant analysis (Linear Discrimination Analysis, LDA), support vector machine (Support Vector Machine, SVM), and the like.
In one embodiment, the step S32 further includes, on the basis of completing the odor evaluation of the whole gas in the pipeline, applying a dynamic gas distribution system to realize the combination and collocation of the components of the odor gas, and exploring the influence of different components and combinations of the gas on the dimensionless odor by combining with the artificial olfactory system to realize the dissociative analysis of the dimensionless odor.
And S4, performing simulation tests on tires of different specifications and models, accumulating data, analyzing the test data, finding out sensing thresholds of feature gas without dimension peculiar smell when the tires of different specifications and models are damaged, and establishing a tire state alarm system.
The method comprises the steps of carrying out simulation test on tires of different specifications, continuously monitoring the concentration information of the released tire gas on line, quickly knowing the discharge rule of the tire gas in the test process, guaranteeing the timeliness of monitoring data, finding out the sensing threshold value of characteristic gas without dimensionality peculiar smell when the tires of different specifications are damaged by accumulation analysis of the data in the test process, and establishing an alarm system capable of accurately identifying the test state of the tire. The system can transmit the test state to the cloud platform in real time, a user can check the real-time state or control field equipment remotely through a computer browser or a mobile phone APP, and meanwhile, any condition on the field can also send alarm information to the user computer or the mobile phone.
In one embodiment, as shown in fig. 4, there is provided a tire high-speed durability test remote monitoring and alarming method applied to the tire high-speed durability test remote monitoring and alarming system constructed according to the method described in the above embodiment, comprising the steps of:
Step S001, firstly, setting an induction threshold value of characteristic gas without dimension peculiar smell when a tire corresponding to a target tire is damaged through a human-computer interface of a remote control terminal or a data acquisition control and transmission unit by a tester;
Step S002, starting the tire detection testing machine, starting the sampling pump, and sending a pulse per second switching value signal to the data acquisition control and transmission unit after the tire detection testing machine is started, wherein the data acquisition control and transmission unit realizes timing by a pulse per second technology;
step S003, a sampling pump provides a constant flow sample gas at a sampling rate of 1L/min, so that the measured gas can reach an analysis unit in real time;
step S004, sampling and analyzing the sample gas in real time by utilizing an analysis unit;
step S005, when the gas sensor array detects that the peculiar smell exceeds the sensing threshold value, alarm information is sent to the data acquisition control and transmission unit, and the data acquisition control and transmission unit transmits the alarm information to the remote control terminal and the tire detection testing machine;
Step S006, alarming and stopping.
In practical application, the tire high-speed durability test remote monitoring alarm system is synchronous with the tire detection testing machine, and the tire detection testing machine sends a pulse per second switching value signal to the data acquisition control and transmission unit after being started, and the data acquisition control and transmission unit realizes timing by a pulse per second technology, so that the accumulated running time of the sampling unit is always the same as that of the tire detection testing machine. The data acquisition control and transmission unit is used for realizing interaction of alarm signals between the detection system and the tire detection testing machine, a tester firstly sets an induction threshold value of characteristic gas without dimension peculiar smell when the tire is damaged through a remote APP or a human-computer interface of the data acquisition control and transmission unit, and when the gas sensor array detects that the peculiar smell exceeds the induction threshold value, alarm information is sent to the data acquisition control and transmission unit which is used for transmitting the alarm information to the remote control terminal and the tire detection testing machine.
In one embodiment, as shown in FIG. 5, a method for guiding improvement of a tire manufacturing process using a tire high speed endurance test remote monitoring alarm system is provided, the method comprising the steps of:
And step S011, performing durability tests under the same conditions on a plurality of groups of target tires under different production processes, sampling and recording characteristic gas components, concentration, damage degree and corresponding time released by the target tires under the different production processes in the durability tests by adopting a built online continuous odor monitoring system.
And S012, analyzing the sampling result in the step S011 by using an odor evaluation model, and exploring the specific influence of different production processes on the odor and main gas components causing the influence, thereby providing directions for subsequent process improvement.
According to the remote monitoring alarm system for the tire high-speed durability test, provided by the invention, through continuously monitoring the concentration information released by the tire gas on line, the emission rule of the tire gas in the test process is quickly known, the timeliness of monitoring data is ensured, the test state can be transmitted to the cloud platform in real time through the system, a user can remotely check the real-time state or control field equipment through a computer browser or a mobile phone APP, and meanwhile, alarm information can be sent to a user computer or a mobile phone when any situation occurs on site. Therefore, the problems of labor and time consumption, time lag, slow data reporting, unsafe experimental environment and the like caused by the conventional manual test can be solved, the management level of a laboratory can be effectively improved, the health of personnel is ensured, an accurate and reliable method is provided for scientifically making a test flow, in addition, a remote non-contact detection system for a high-speed endurance test of a tire is put into use, the specialization and automation of the high-speed endurance test machine can be promoted, considerable economic and social benefits are created, at least 0.5 ten-thousand-yuan test cost can be expected per station according to the measurement and calculation of the tire endurance test machine, and the maintenance amount of the high-speed endurance test machine in the whole country is more than 1000 stations and 2200 stations at present, if the remote on-line monitoring alarm system for the tire endurance test is used, at least 1100 ten-thousand yuan test cost can be saved per year.
Those skilled in the art will appreciate that implementing all or part of the above described methods may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed, may comprise the steps of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in embodiments provided herein may include at least one of non-volatile and volatile memory. The nonvolatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical Memory, or the like. Volatile memory can include random access memory (Random Access Memory, RAM) or external cache memory. By way of illustration, and not limitation, RAM can be in various forms such as static random access memory (Static Random Access Memory, SRAM) or dynamic random access memory (Dynamic Random Access Memory, DRAM), etc.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.
Claims (10)
1. The remote monitoring alarm system is applied to a tire high-speed durability test and can be matched with various tire durability test machines to realize the detection of the tire high-speed durability, and is characterized by comprising an on-line continuous odor monitoring system based on an artificial olfactory system and a tire state alarm system, wherein the on-line continuous odor monitoring system is used for continuously analyzing and measuring the odor of gas released by an automobile tire in the high-speed durability test, and the on-line continuous odor monitoring system based on the artificial olfactory system consists of a preprocessing unit, a sampling unit, an analyzing unit, a data acquisition control unit and a transmission unit;
The pretreatment unit is used for purifying the sample gas before analysis and preventing the interference of particulate matters and water to the analysis unit; the pretreatment unit consists of a sampling probe, a sampling pipeline, a gas-water separator and a hydrophobic filter;
The sampling unit is used for providing a constant flow sample gas for the analysis unit and consists of a sampling pump, a flow limiting valve and an electronic flowmeter;
The analysis unit is used for sampling and analyzing the sample gas in real time and consists of an analysis chamber and a zero gas generator; a gas sensor array and a conditioning circuit are arranged in the analysis chamber;
The data acquisition control and transmission unit is used for executing sampling instructions, controlling the operation of the analysis unit, acquiring data and linking with other equipment, and consists of an ARM processor, an embedded computer, a man-machine interface, a wireless transmission module and a wired signal interface;
The tire state alarm system is used for sending alarm information to the tire detection testing machine and the remote control terminal through the data acquisition control and transmission unit when the on-line continuous odor monitoring system detects that the odor exceeds the sensing threshold value of the feature gas without dimension odor when the tire is damaged.
2. The system according to claim 1, wherein the pretreatment unit is composed of a sampling probe, a gas-water separator and a hydrophobic filter which are sequentially connected through a sampling pipeline, and the sampling probe is used for accurately sampling a sampling point; the sampling pipeline adopts a stainless steel pipe or a polytetrafluoroethylene pipe which does not react with gas; the gas-water separator is used for preventing visible water from entering the system; the hydrophobic filter is arranged in front of the analysis device, and can carry out secondary filtration on fine particles and a small amount of water vapor.
3. The system according to claim 1, wherein the whole analysis chamber is placed in a constant temperature device, a gas sensor array consisting of 8 to 10 groups of gas sensors is arranged in the analysis chamber, the gas sensor array is installed in a polytetrafluoroethylene flow cell together with a group of temperature and humidity sensors and is in signal connection with the data acquisition control and transmission unit, and the gas sensor is manufactured based on the gas sensor by synthesizing a high-selectivity gas sensitive material which is sensitive to the peculiar smell gas components of rubber after sampling and analyzing the gas released in the whole process of the tire durability test; the analysis unit main body is arranged outside the test room in a wall-hanging mode, the sampling point is arranged above or beside the test machine, and the sampling point is connected with the analysis unit through a polytetrafluoroethylene or stainless steel tube.
4. The method for constructing the remote monitoring alarm system for the high-speed durability test of the tire is characterized by comprising the following steps of:
step S1, synthesizing a high-selectivity gas sensitive material and manufacturing a gas sensor;
Step S2, building an on-line continuous odor monitoring system for continuously analyzing and measuring the odor of the gas released by the automobile tire in a high-speed durability test; the odor online continuous monitoring system is an artificial olfactory system-based odor online continuous monitoring system according to any one of claims 1-3;
S3, constructing an odor evaluation model based on the gas sensor data based on the constructed odor online continuous monitoring system;
And S4, performing simulation tests on tires of different specifications and models, accumulating data, analyzing the test data, finding out sensing thresholds of feature gas without dimension peculiar smell when the tires of different specifications and models are damaged, and establishing a tire state alarm system.
5. The method according to claim 4, wherein the step S1 specifically comprises the steps of:
S11, sampling and analyzing the peculiar smell gas components released in the whole process of the tire durability test by adopting a gas chromatograph-mass spectrometer;
and S12, synthesizing a high-selectivity gas sensitive material which is specifically sensitive to the rubber peculiar smell gas component, and manufacturing the gas sensor.
6. The method according to claim 5, wherein the gas sensitive material in the step S12 adopts lead sulfide and tin oxide colloidal quantum dots as the gas sensitive material, and the device is formed by room temperature spin coating and assisted by organic ligand replacement, so as to design and manufacture a flexible gas sensor which is fast responsive to characteristic gases at room temperature.
7. The method according to claim 4, wherein the step S2 specifically comprises the steps of:
Step S21, sequentially connecting a sampling probe, a gas-water separator and a hydrophobic filter through a sampling pipeline to form a pretreatment unit;
Step S22, sequentially connecting a sampling pump, a flow limiting valve and an electronic flowmeter to form a sampling unit for providing constant flow sample gas;
step S23, a gas sensor array formed by 8 to 10 groups of gas sensors and a group of temperature and humidity sensors are arranged in a flow cell and are arranged in an analysis chamber together with a conditioning circuit, and then the analysis chamber is integrally arranged in a constant temperature device to form an analysis unit together with a zero gas generator;
step S24, the main body of the analysis unit is arranged outside the test room in a wall-hanging mode, sampling points are arranged above or beside the test machine, and the sampling points are connected with the analysis unit through polytetrafluoroethylene or stainless steel pipes;
Step S25, an ARM processor, an embedded computer, a man-machine interface, a wireless transmission module and a wired signal interface are assembled into a data acquisition control and transmission unit for executing sampling instructions, controlling the operation of an analysis unit, acquiring data and linking with other equipment.
8. The method according to claim 4, wherein in the step S3, the method for constructing the odor evaluation model based on the on-line continuous odor monitoring system is suitable for constructing the odor evaluation model by using the response data of the gas sensor array to the mixed gas released in the high-speed endurance test of the automobile tire, and specifically comprises the following steps:
s31, performing a durability test on a plurality of groups of target tires, sampling and recording characteristic gas components and concentrations released by the plurality of groups of target tires in the durability test by adopting a built peculiar smell online continuous monitoring system;
Step S32, extracting various representative characteristic values according to original sensor response data, researching the mutual modulation action among the characteristic values, arranging and combining the characteristic values, simultaneously using the characteristic values for training a machine learning algorithm, realizing the accurate and rapid association of sensor data and dimensionless peculiar smell, and establishing an association model of an artificial olfactory system recognition result and dimensionless peculiar smell standard;
The step S32 further includes, on the basis of completing the odor evaluation of the whole gas in the pipeline, applying a dynamic gas distribution system to realize the combination and collocation of the components of the odor gas, and exploring the influence of different components and combinations of the gas on the dimensionless odor by combining with an artificial olfactory system to realize the dissociative analysis of the dimensionless odor.
9. A tire high-speed durability test remote monitoring and alarming method, which is applied to a tire high-speed durability test remote monitoring and alarming system constructed according to the method of any one of claims 4-8, and comprises the following steps:
Step S001, firstly, setting an induction threshold value of characteristic gas without dimension peculiar smell when a tire corresponding to a target tire is damaged through a human-computer interface of a remote control terminal or a data acquisition control and transmission unit by a tester;
Step S002, starting the tire detection testing machine, starting the sampling pump, and sending a pulse per second switching value signal to the data acquisition control and transmission unit after the tire detection testing machine is started, wherein the data acquisition control and transmission unit realizes timing by a pulse per second technology;
step S003, a sampling pump provides a constant flow sample gas at a sampling rate of 1L/min, so that the measured gas can reach an analysis unit in real time;
step S004, sampling and analyzing the sample gas in real time by utilizing an analysis unit;
step S005, when the gas sensor array detects that the peculiar smell exceeds the sensing threshold value, alarm information is sent to the data acquisition control and transmission unit, and the data acquisition control and transmission unit transmits the alarm information to the remote control terminal and the tire detection testing machine;
Step S006, alarming and stopping.
10. A method for guiding improvement of a tire production process by using a tire high-speed durability test remote monitoring alarm system constructed by the method according to any one of claims 4-8, wherein the method specifically comprises the following steps:
Step S011, performing durability tests under the same conditions on a plurality of groups of target tires under different production processes, sampling and recording characteristic gas components, concentration, damage degree and corresponding time released by the target tires under the different production processes in the durability tests by adopting a built online continuous odor monitoring system;
And S012, analyzing the sampling result in the step S011 by using an odor evaluation model, and exploring the specific influence of different production processes on the odor and main gas components causing the influence, thereby providing directions for subsequent process improvement.
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| CN207472581U (en) * | 2017-11-24 | 2018-06-08 | 四川凯力威科技股份有限公司 | Tyre detection device and detection structure |
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| WO2022212906A1 (en) * | 2021-04-01 | 2022-10-06 | Arizona Board Of Regents On Behalf Of Arizona State University | Systems, methods, and apparatuses for implementing olfactory delivery in virtualized environments using an olfactory delivery engine |
| CN217561327U (en) * | 2022-04-22 | 2022-10-11 | 湖北锐意自控系统有限公司 | Laser Raman gas analysis device fused with chromatographic column |
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| CN105021270A (en) * | 2014-03-31 | 2015-11-04 | Skf公司 | Module for detecting a vibrational behavior of a mechanical component |
| CN207472581U (en) * | 2017-11-24 | 2018-06-08 | 四川凯力威科技股份有限公司 | Tyre detection device and detection structure |
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