CN114323031B - Wheel position positioning device and method for automobile tire sensor - Google Patents
Wheel position positioning device and method for automobile tire sensor Download PDFInfo
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- CN114323031B CN114323031B CN202111623282.7A CN202111623282A CN114323031B CN 114323031 B CN114323031 B CN 114323031B CN 202111623282 A CN202111623282 A CN 202111623282A CN 114323031 B CN114323031 B CN 114323031B
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Abstract
The invention relates to a wheel location positioning device and a positioning method of an automobile tire sensor, wherein a terminal processing module of the positioning device is respectively in communication connection with a ground excitation module, a cloud end and an induction module; the ground excitation module is buried in the ground, and is used for exciting a sensor in the tire, receiving excitation feedback of the sensor and transmitting the excitation feedback to the terminal processing module; the cloud end is used for storing and processing the data uploaded by the terminal processing module; the sensing module is used for sensing the approach of the vehicle; judging the wheel position of a sensor which sends out an excitation feedback signal by enhancing the excitation signal sent out by the excitation coil until receiving the excitation feedback signal and combining the position of the ground excitation module and the position of the excitation coil which sends out the excitation signal; the positioning device only needs to be installed at the vehicle entrance, so that positioning equipment is prevented from being installed on each vehicle, the equipment cost is greatly reduced, the installation method is simplified, and the popularization and maintenance of products are facilitated.
Description
Technical Field
The invention relates to the field of automobile sensor positioning, in particular to a wheel position positioning device and a wheel position positioning method of an automobile tire sensor.
Background
In the current vehicles, sensors are often installed in the tires so as to monitor the real-time state of the tires of the vehicles and ensure the running safety of the vehicles. Wherein, because the sensor and the tyre are in one-to-one correspondence, the matching of the sensor and the tyre needs to be completed; otherwise, even if the information of the sensor is received, the information of which tire cannot be judged.
The existing matching of the sensor and the tire comprises code scanning matching, automatic matching of detected acceleration, one-to-one matching of an antenna and the tire, matching of detected tire pressure and the like. The mode of code scanning matching is complex, and the effect of re-matching can be affected after the two-dimensional code on the surface of the tire is worn. Particularly for vehicles, the length of the vehicle is longer, the number of the tires of the vehicle is large, the difficulty of tire positioning and matching is increased, and in addition, the requirement for tire matching is further increased due to the short tire replacement period. On the other hand, if the automatic positioning device is installed with each dolly, the device cost is high and maintenance is troublesome in the future. There is a need for a wheel sensor positioning apparatus and method that is simple to install and easy to maintain. The positioning device only needs to be installed at the vehicle entrance, so that positioning equipment is prevented from being installed on each vehicle, the equipment cost is greatly reduced, the installation method is simplified, and the popularization and maintenance of products are facilitated.
Disclosure of Invention
The invention aims to solve the defects of the prior art and provides a wheel location positioning device and a wheel location positioning method of an automobile tire sensor.
In order to solve the problems, the invention adopts the following technical scheme:
a wheel location positioning device of an automobile tire sensor comprises a ground excitation module, an induction module, a terminal processing module and a cloud; the terminal processing module is respectively in communication connection with the ground excitation module, the cloud end and the sensing module; the ground excitation module is buried in the ground, and is used for exciting a sensor in the tire, receiving excitation feedback of the sensor and transmitting the excitation feedback to the terminal processing module; the cloud end is used for storing and processing the data uploaded by the terminal processing module; the sensing module is used for sensing the approach of the vehicle; the ground excitation module comprises a micro control unit, a driving circuit, an excitation coil, a wireless radio frequency circuit and a communication circuit; the micro control unit is respectively connected with the driving circuit, the communication circuit and the wireless radio frequency circuit; the driving circuit is also connected with a plurality of exciting coils; the communication circuit is used for realizing communication with the terminal processing module.
Further, the ground excitation module comprises six excitation coils, and the six excitation coils are arranged on the same straight line L; wherein, the three continuous exciting coils on the left side are grouped into one group, the three continuous exciting coils on the right side are grouped into two groups, and the directions of the exciting coils in the same group are the same; the distance between the exciting coils in the same group is a set value, and the distance between the exciting coils in two groups is also a set value.
A wheel position positioning method of an automobile tire sensor comprises the following steps:
step 1: the terminal processing module completes the starting initialization process;
step 2: the sensing module acquires an image
Step 3: the sensing module judges whether a license plate exists in the acquired image; if the license plate exists, reading license plate information, transmitting the read license plate information to a terminal processing module, and entering the next step; otherwise, returning to the step 2;
step 4: the terminal processing module judges whether the vehicle enters a set position; after the vehicle enters a set position, starting an automatic positioning mode; in the automatic positioning mode, acquiring information of a tire sensor through a ground excitation module;
step 5: uploading the tire sensor data to a cloud end, and rewriting terminal wheel position configuration information on the vehicle after the cloud end obtains the wheel position data;
step 6: the cloud end can track the brake and tire temperature conditions of the vehicle in running for a long time, fine calibration is carried out on the tire position in the same wheel resetting position, and the wheel position configuration information of the vehicle-mounted terminal is rewritten.
Further, the terminal processing module in the step 4 judges whether the vehicle enters the set position, including judging through an external infrared sensor and a pressure sensor, or judging through manual signal input, or judging through interval set time after the sensing module collects license plate images.
Further, the automatic positioning mode in the step 4 includes the following steps:
step 41: the terminal processing module sets the ground excitation module as an excitation mode and sends an excitation command to the corresponding ground excitation module;
step 42: the ground excitation module judges whether an excitation command of the terminal processing module is received or not; if an excitation command is received, step 43 is entered; if no excitation command is received, returning to step 41;
step 43: the control driving circuit drives the exciting coil to send out an exciting signal and receives exciting feedback of the sensor through the wireless radio frequency circuit;
step 44: the terminal processing module sets the ground excitation module as a reading mode, closes excitation of the excitation module and sends a query command to the corresponding ground excitation module;
step 45: the ground excitation module judges whether a query command is received or not; if the inquiry command is received, the excitation feedback data is transmitted to the terminal processing module, and the processing and storage of the excitation feedback data are completed in the terminal processing module, and the step 46 is entered; otherwise, returning to step 44;
step 46: the terminal processing module judges whether the query time reaches a set value; if the set value is reached, go to step 47; otherwise, returning to step 44;
step 47: the terminal processing module judges whether the excitation times are larger than the set times n; if the excitation feedback data is greater than the set number of times n, uploading the stored excitation feedback data to the cloud, and ending the step; if the number of times is equal to or less than the set number of times n, the routine returns to step 41.
Further, in the step 43, the excitation signal emitted by the exciting coil is gradually increased from 0 until the excitation feedback signal is received, and the increase of the excitation signal is stopped.
Further, in the step 45, the processing of the excitation feedback data includes the following steps:
step 451: the terminal processing module enters a data processing flow;
step 452: deleting invalid data in the received excitation feedback data;
step 453: data comparison is carried out, and excitation feedback data are stored in corresponding wheel bits;
step 454: and (5) finishing the processing of all the excitation feedback data, and ending the step.
Further, the excitation feedback signal in step 452 includes sensor information and tire information collected by the sensor, where the tire information includes tire temperature and tire pressure; the invalid data includes data of which the tire temperature and pressure are 0 and repeated data.
Further, the data comparison process comprises the step of completing the matching of the sensor information and the wheel positions in the excitation feedback data, wherein the wheel positions of the sensors are judged according to the position of the ground excitation module and the position of the excitation coil sending out the excitation signal.
Further, in step 6, during the running process of the vehicle, the vehicle-mounted terminal and the cloud server collect the braking duration of the vehicle, and after the set accumulated braking duration is reached, the tire temperature of the inner tire and the outer tire of the group of tire positions is compared, the system with higher continuous temperature is adjusted to the inner tire position again, and the fine correction of the inner tire and the outer tire of the tire positions is completed.
The beneficial effects of the invention are as follows:
the ground excitation module is arranged to excite the sensor at the corresponding position, excitation feedback of the sensor is obtained, information interaction with the sensor is completed, and the sensor wheel position is judged according to the excitation feedback information;
the induction module is arranged and comprises a license plate recognition camera, so that the approach of a vehicle is induced, license plate information of the approaching vehicle is obtained, and the matching of the vehicle is completed;
by arranging two groups of exciting coils forming an included angle, and each group of exciting coils comprises a plurality of exciting coils which are arranged in parallel, the sensor in the tire can be ensured to receive excitation signals with enough excitation intensity, and the sensor is convenient to be excited;
by arranging the fixed sensor wheel position positioning device, the vehicle is parked at a set position, so that the sensor positioning is completed, positioning equipment is prevented from being installed on each vehicle, the equipment cost is reduced, the installation method is simplified, and the popularization and maintenance of products are facilitated;
judging the wheel position of a sensor which sends out an excitation feedback signal by gradually enhancing the excitation signal sent out by the excitation coil until receiving the excitation feedback signal and combining the position of the ground excitation module and the position of the excitation coil which sends out the excitation signal;
and finishing the fine correction of the inner and outer tire at the cloud end according to the braking duration and the temperature of the inner and outer tire in the resetting state.
Drawings
Fig. 1 is a block diagram of a first embodiment of the present invention (excluding a cloud end);
FIG. 2 is a block diagram of a ground excitation module according to a first embodiment of the present invention;
FIG. 3 is a schematic diagram of the positions of the exciting coil and the tire according to the first embodiment of the invention;
FIG. 4 is a flowchart of a positioning method according to a first embodiment of the present invention;
FIG. 5 is a flowchart of an automatic positioning mode according to a first embodiment of the present invention;
fig. 6 is a flow chart of data processing according to a first embodiment of the present invention.
Detailed Description
Other advantages and effects of the present invention will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present invention with reference to specific examples. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict.
It should be noted that the illustrations provided in the following embodiments merely illustrate the basic concept of the present invention by way of illustration, and only the components related to the present invention are shown in the drawings and are not drawn according to the number, shape and size of the components in actual implementation, and the form, number and proportion of the components in actual implementation may be arbitrarily changed, and the layout of the components may be more complicated.
Embodiment one:
as shown in fig. 1, a wheel location positioning device of an automobile tire sensor comprises a ground excitation module, an induction module, a terminal processing module and a cloud; the terminal processing module is respectively in communication connection with the ground excitation module, the cloud end and the sensing module; the ground excitation module is buried in the ground, and is used for exciting a sensor in the tire, receiving excitation feedback of the sensor and transmitting the excitation feedback to the terminal processing module; the cloud end is used for storing and processing the data uploaded by the terminal processing module; the sensing module is used for sensing the approach of the vehicle, in this example, the approach of the vehicle.
As shown in fig. 2, since the general vehicle type includes two axles, in which the axles of the front row are single wheels and the axles of the rear row are multiple wheels, four sets of ground excitation modules are provided in this example, and the four sets of ground excitation modules are arranged in two rows, one front and one rear, each row including two. The ground excitation module comprises a Micro Control Unit (MCU), a driving circuit, an excitation coil, a wireless radio frequency circuit and a communication circuit; the micro control unit is respectively connected with the driving circuit, the communication circuit and the wireless radio frequency circuit; the driving circuit is also connected with a plurality of exciting coils; the communication circuit is used for realizing communication with the terminal processing module, and in the example, the communication circuit is connected with the terminal processing module through a 485 bus. In this example, the micro control unit is connected with the driving circuit through the IO port, wherein the micro control unit transmits a PWM wave signal to the driving circuit to excite the low frequency induction signal. The micro control unit is also connected with the communication circuit through a USART interface; the micro control unit is also connected with a wireless radio frequency circuit through an SPI interface, the wireless radio frequency circuit is used for receiving excitation feedback of a sensor in the tire, each ground excitation module comprises two wireless radio frequency circuits in the example, and the excitation feedback received by the wireless radio frequency electric furnace is 433MHZ radio frequency excitation feedback.
As shown in fig. 3, in this example, a ground excitation module includes six excitation coils, and the six excitation coils are arranged on the same straight line L; the three continuous exciting coils on the left side are in one group, the three continuous exciting coils on the right side are in one group, the six exciting coils are in two groups, the exciting coils in the same group are same in orientation, the distance between the exciting coils in the same group is a set value, and the distance between the exciting coils in the same group is also a set value. The three excitation coils on the left are set at a set angle X, in this case 45 ° with the straight line L; the three excitation coils on the right are set at a set angle Y, in this case-45 deg., to the straight line L. In the implementation process, two groups of exciting coils forming an included angle are arranged, and each group of exciting coils comprises a plurality of exciting coils which are arranged in parallel, so that the sensor in the tire can receive excitation signals with enough excitation intensity. In this example the exciting coil is excited at a low frequency of 125 KHZ.
The sensing module comprises a license plate recognition camera, wherein the sensing module is used for sensing the approach of a vehicle, recognizing and acquiring license plate information, transmitting the license plate information to the terminal processing module, and controlling the ground excitation module to start by the terminal processing module.
As shown in fig. 4, a wheel location positioning method of an automobile tire sensor includes the following steps:
step 1: the terminal processing module completes the starting initialization process;
step 2: the sensing module acquires an image
Step 3: the sensing module judges whether a license plate exists in the acquired image; if the license plate exists, reading license plate information, transmitting the read license plate information to a terminal processing module, and entering the next step; otherwise, returning to the step 2;
step 4: the terminal processing module judges whether the vehicle enters a set position; after the vehicle enters a set position, starting an automatic positioning mode; in the automatic positioning mode, acquiring information of a tire sensor through a ground excitation module;
step 5: uploading the tire sensor data to a cloud end, and rewriting terminal wheel position configuration information on the vehicle after the cloud end obtains the wheel position data;
step 6: the cloud end can further accurately confirm the positions of the inner tire and the outer tire of the group of tire positions according to the height of the tire temperature for the same tire resetting under the condition of braking and tire temperature when the vehicle runs for a long time, and rewrites the configuration information of the tire positions of the vehicle-mounted terminal.
The starting initialization process in the step 1 comprises 485 bus initialization and 485 communication self-checking processes.
As shown in fig. 5, the terminal processing module in step 4 determines whether the vehicle enters the set position, including determining through an external infrared sensor and a pressure sensor, or determining through manual signal input, or determining through an interval set time after the sensing module collects the license plate image. The automatic positioning mode comprises the following steps:
step 41: the terminal processing module sets the ground excitation module as an excitation mode and sends an excitation command to the corresponding ground excitation module;
step 42: the ground excitation module judges whether an excitation command of the terminal processing module is received or not; if an excitation command is received, step 43 is entered; if no excitation command is received, returning to step 41;
step 43: the control driving circuit drives the exciting coil to send out an exciting signal and receives exciting feedback of the sensor through the wireless radio frequency circuit;
step 44: the terminal processing module sets the ground excitation module as a reading mode, closes excitation of the excitation module and sends a query command to the corresponding ground excitation module;
step 45: the ground excitation module judges whether a query command is received or not; if the inquiry command is received, the excitation feedback data is transmitted to the terminal processing module, and the processing and storage of the excitation feedback data are completed in the terminal processing module, and the step 46 is entered; otherwise, returning to step 44;
step 46: the terminal processing module judges whether the query time reaches a set value; if the set value is reached, go to step 47; otherwise, returning to step 44;
step 47: the terminal processing module judges whether the excitation times are larger than the set times n; if the excitation feedback data is greater than the set number of times n, uploading the stored excitation feedback data to the cloud, and ending the step; if the number of times is equal to or less than the set number of times n, the routine returns to step 41.
In step 41, the ground excitation module controls the excitation coil to emit an excitation signal in the excitation mode.
The excitation signal from the exciting coil in step 43 is gradually increased from 0 until the excitation feedback signal is received, and the increase of the excitation signal is stopped. The two ground excitation sensors are positioned corresponding to the front wheel axles of the vehicle, and the received sensor excitation feedback signals can be directly bound with the wheel positions. The two ground excitation modules corresponding to the rear wheel axle of the vehicle are arranged, and because the rear wheel axle is a compound wheel, the inner wheel and the outer wheel are required to be judged, in the embodiment, the two groups of excitation coils of each ground excitation module respectively send gradually enhanced excitation signals until excitation feedback signals are received, the two groups of excitation coils are judged to be the inner wheel or the outer wheel for the first time according to the positions of the excitation coils, and then the positions of the inner wheel and the outer wheel are regulated again according to the brake and the temperature value of the inner tire and the outer tire of the vehicle which are tracked by a cloud server for a long time. For example, the excitation coil on the right side in the ground excitation module on the right side of the rear row is controlled to emit excitation signals, the signals are gradually increased from small to large, and the sensor corresponding to the received excitation feedback signals is considered as the sensor of the outer wheel of the compound wheel on the right side of the rear row of the vehicle. The excitation signal is again turned up to excite the inner wheel. The excitation feedback signal comprises sensor information and tire information acquired by the sensor, wherein the tire information comprises tire temperature, tire pressure and the like.
As shown in fig. 6, in the step 45, the process of exciting feedback data includes the steps of:
step 451: the terminal processing module enters a data processing flow;
step 452: deleting invalid data in the received excitation feedback data;
step 453: data comparison is carried out, and excitation feedback data are stored in corresponding wheel bits;
step 454: and (5) finishing the processing of all the excitation feedback data, and ending the step.
The invalid data in step 452 includes data in which the tire temperature and pressure are 0, repeated data, and the like.
In step 453, the data comparison process includes matching the sensor information and the wheel positions in the excitation feedback data, where the wheel positions of the sensor are determined according to the positions of the ground excitation modules and the positions of the excitation coils that emit the excitation signals, in this example, the two groups of excitation coils in each ground excitation module emit the excitation signals individually, and the excitation signals are gradually increased.
The number of times n is set in step 47, in this example 4 times.
In the step 6, in the running process of the vehicle, the vehicle-mounted terminal and the cloud server collect the braking time of the vehicle, and after the accumulated braking time reaches 20 minutes, the tire temperature of the inner tire and the outer tire of the group of tire positions is compared, and the system with higher continuous temperature is adjusted to be the inner tire position again. The tire temperature is obtained through data acquired by a sensor, and the braking duration is obtained through a vehicle-mounted terminal.
The above description is only one specific example of the present invention and does not constitute any limitation on the present invention. It will be apparent to those skilled in the art that various modifications and changes in form and details may be made without departing from the principles and construction of the invention, but these modifications and changes based on the inventive concept are still within the scope of the appended claims.
Claims (9)
1. The wheel position positioning method of the automobile tire sensor is characterized by comprising the following steps of:
step 1: the terminal processing module completes the starting initialization process;
step 2: the sensing module acquires an image
Step 3: the sensing module judges whether a license plate exists in the acquired image; if the license plate exists, reading license plate information, transmitting the read license plate information to a terminal processing module, and entering the next step; otherwise, returning to the step 2;
step 4: the terminal processing module judges whether the vehicle enters a set position; after the vehicle enters a set position, starting an automatic positioning mode; in the automatic positioning mode, acquiring information of a tire sensor through a ground excitation module;
the automatic positioning mode in the step 4 comprises the following steps:
step 41: the terminal processing module sets the ground excitation module as an excitation mode and sends an excitation command to the corresponding ground excitation module;
step 42: the ground excitation module judges whether an excitation command of the terminal processing module is received or not; if an excitation command is received, step 43 is entered; if no excitation command is received, returning to step 41;
step 43: the control driving circuit drives the exciting coil to send out an exciting signal and receives exciting feedback of the sensor through the wireless radio frequency circuit;
step 44: the terminal processing module sets the ground excitation module as a reading mode, closes excitation of the excitation module and sends a query command to the corresponding ground excitation module;
step 45: the ground excitation module judges whether a query command is received or not; if the inquiry command is received, the excitation feedback data is transmitted to the terminal processing module, and the processing and storage of the excitation feedback data are completed in the terminal processing module, and the step 46 is entered; otherwise, returning to step 44;
step 46: the terminal processing module judges whether the query time reaches a set value; if the set value is reached, go to step 47; otherwise, returning to step 44;
step 47: the terminal processing module judges whether the excitation times are larger than the set times n; if the excitation feedback data is greater than the set number of times n, uploading the stored excitation feedback data to the cloud, and ending the step; if the number of times is less than or equal to the set number of times n, returning to the step 41;
step 5: uploading the tire sensor data to a cloud end, and rewriting terminal wheel position configuration information on the vehicle after the cloud end obtains the wheel position data;
step 6: the cloud end can track the brake and tire temperature conditions of the vehicle in running for a long time, fine calibration is carried out on the tire position in the same wheel resetting position, and the wheel position configuration information of the vehicle-mounted terminal is rewritten.
2. The method for positioning the tire of the automobile according to claim 1, wherein the terminal processing module in the step 4 judges whether the automobile enters the set position, and the judgment is performed by an external infrared sensor and a pressure sensor, or by manual signal input, or by an interval set time after the license plate image is acquired by the sensing module.
3. A method for positioning a tire for an automobile according to claim 1, wherein the exciting coil in step 43 emits an exciting signal which is gradually increased from 0 until receiving an exciting feedback signal, and the exciting signal is stopped from being increased.
4. A method for positioning a wheel well of a tire sensor according to claim 3, wherein in said step 45, the process of exciting the feedback data comprises the steps of:
step 451: the terminal processing module enters a data processing flow;
step 452: deleting invalid data in the received excitation feedback data;
step 453: data comparison is carried out, and excitation feedback data are stored in corresponding wheel bits;
step 454: and (5) finishing the processing of all the excitation feedback data, and ending the step.
5. The method for positioning a tire for an automobile according to claim 4, wherein the excitation feedback signal in step 452 includes sensor information and tire information collected by the sensor, and the tire information includes tire temperature and tire pressure; the invalid data includes data of which the tire temperature and pressure are 0 and repeated data.
6. The method for positioning the wheel bits of the tire sensor of the automobile according to claim 4, wherein the data comparison process comprises the step of matching the sensor information and the wheel bits in the excitation feedback data, and the wheel bits of the sensor are judged according to the position of the ground excitation module and the position of the excitation coil sending the excitation signal.
7. The method for positioning the tire of the automobile tire sensor according to claim 1, wherein in the step 6, in the running process of the automobile, the vehicle-mounted terminal and the cloud server collect the braking duration of the automobile, and after the set accumulated braking duration is reached, the tire temperature of the inner tire and the outer tire of the group of tire positions is compared, the system with higher continuous temperature is adjusted to the inner tire position again, and the fine correction of the inner tire and the outer tire of the tire position is completed.
8. The wheel location positioning device of the automobile tire sensor, which is characterized by comprising a ground excitation module, an induction module, a terminal processing module and a cloud end, wherein the wheel location positioning device of the automobile tire sensor is obtained based on the wheel location positioning method of the automobile tire sensor according to any one of claims 1-7; the terminal processing module is respectively in communication connection with the ground excitation module, the cloud end and the sensing module; the ground excitation module is buried in the ground, and is used for exciting a sensor in the tire, receiving excitation feedback of the sensor and transmitting the excitation feedback to the terminal processing module; the cloud end is used for storing and processing the data uploaded by the terminal processing module; the sensing module is used for sensing the approach of the vehicle; the ground excitation module comprises a micro control unit, a driving circuit, an excitation coil, a wireless radio frequency circuit and a communication circuit; the micro control unit is respectively connected with the driving circuit, the communication circuit and the wireless radio frequency circuit; the driving circuit is also connected with a plurality of exciting coils; the communication circuit is used for realizing communication with the terminal processing module.
9. The wheel position positioning apparatus of an automobile tire sensor of claim 8, wherein the ground excitation module comprises six excitation coils arranged on the same straight line L; wherein, the three continuous exciting coils on the left side are grouped into one group, the three continuous exciting coils on the right side are grouped into two groups, and the directions of the exciting coils in the same group are the same; the distance between the exciting coils in the same group is a set value, and the distance between the exciting coils in two groups is also a set value.
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| CN109831515A (en) * | 2019-03-04 | 2019-05-31 | 知轮(杭州)科技有限公司 | The test method and test signal generation device of tire on-line detecting system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111361364B (en) * | 2018-03-16 | 2022-09-02 | 深圳市道通科技股份有限公司 | Tire positioning method and device, electronic control unit and tire pressure sensor |
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| CN2725907Y (en) * | 2004-09-27 | 2005-09-14 | 重庆三信电子有限公司 | Automobile tyre pressure monitoring display system with exciter and its structural member |
| CN104965434A (en) * | 2015-07-03 | 2015-10-07 | 桑惠 | Intelligent management system for commercial vehicle tire and wheel position information |
| CN109218373A (en) * | 2017-07-07 | 2019-01-15 | 杭州中策车空间汽车服务有限公司 | The information processing method and system of tire networking |
| CN207489054U (en) * | 2017-07-27 | 2018-06-12 | 南京泰晟科技实业有限公司 | Tire identity positioning identification system based on tire temperature pressure monitoring system |
| CN109831515A (en) * | 2019-03-04 | 2019-05-31 | 知轮(杭州)科技有限公司 | The test method and test signal generation device of tire on-line detecting system |
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