PATENT CLAIM ANALYSIS

Application Number: 16093891
Application Type: Utility
Filing Date: 2018-10
Publication Date: 2019-07
Patent Classification: ["073", "866500"]

Abstract:
The present invention discloses an apparatus and method for patrol-inspection of a rigid cage channel. The patrol-inspection apparatus comprises a moving member, a transmission member, a driving member, a guide member, and a housing on a main bottom plate. The driving member comprises a tilt sensor and a pressure sensor connected to a microcontroller, the microcontroller is connected to a driver, the driver is connected to a brushless DC motor, and an output shaft of the brushless DC motor is provided with an optical encoder connected to the driver; The moving member comprises a driving output shaft and a driven output shaft, wheel flanges on the driving output shaft and the driven output shaft are each connected with a wheel hub, a permanent magnet is provided in the wheel hub, and a rubber skin is provided on the outer side of the wheel hub; The transmission member comprises a worm connected with the output shaft of the brushless DC motor, a worm wheel on the driving output shaft and meshed with the worm, timing pulleys on the driving output shaft and the driven output shaft, and a timing belt wound on the timing pulleys. The guide member comprises a guide wheel. The present invention increases inspection speed of the rigid cage channel and improves indirectly the production efficiency of the coal mine enterprise.

Claim (Index 10):
A method for patrol-inspection of a rigid cage channel by a patrol-inspection apparatus including a main bottom plater a moving member; a transmission member a driving member; a guide member; and a housing disposed on the main bottom plate; wherein the housing is disposed at a middle portion of the main bottom plate, the driving member is disposed inside the housing, the driving member comprises a tilt sensor and a pressure sensor both connected to a microcontroller, the microcontroller is connected to a driver, the driver is connected to a brushless DC motor, and an output shaft of the brushless DC motor is provided with an optical encoder connected to the driver; wherein the moving member comprises a front-wheel driving output shaft, a front-wheel driven output shall, a rear-wheel driving output shaft, and a rear-wheel driven output shaft, the front-wheel driving output shaft and the front-wheel driven output shaft are located at a front end of the main bottom plate, the rear-wheel driving output shaft and the rear-wheel driven output shall are located at a rear end of the main bottom plate, a wheel flange is provided at each of the front-wheel driving output shaft, the front-wheel driven output shaft, the rear-wheel driving output shaft, and the rear-wheel driven output shaft, the wheel flange is connected with a wheel hub, a permanent magnet is provided in the wheel hub, and a rubber skin is provided on the outer side of the wheel hub; wherein the transmission member a worm connected with the output shaft of the brushless DC motor, a worm wheel disposed on the front-wheel driving output shaft and the rear-wheel driving output shaft and meshed with the worm, timing pulleys disposed at the front-wheel driving output shaft, the front-wheel driven output shaft, the rear-wheel driving output shaft, and the rear-wheel driven output shaft, a timing belt is wound on the timing pulleys of the front-wheel driving output shaft and the rear-wheel driven output shaft, and a timing belt is wound on the timing pulleys of the front-wheel driven output shaft and the rear-wheel driving output shaft; and the guide member comprises a front-wheel guide wheel and a rear-wheel guide wheel, and the front-wheel guide wheel and the rear-wheel guide wheel are both disposed on the outside of the wheel hub, the method comprising:\n a first stage of statistical calculation of data and periodic adjustable-speed patrol-inspection, in which data acquired by the tilt sensor, the optical encoder, and the pressure sensor throughout operation of the patrol-inspection apparatus is used as raw data for processing and adjustable-speed patrol-inspection control is performed on the patrol-inspection apparatus based on the processing results, including: a. based on a data acquisition frequency of the tilt sensor, the optical encoder, and the pressure sensor, taking data acquisition instants of the tilt sensor, the optical encoder, and the pressure sensor as a time sequence for data arrangement, matching the data of tilt angles \u03b8 z  and \u03b8 x  detected by the tilt sensor, the data of speed v detected by the optical encoder, and the data of pressures P 1  and P 2  detected by the pressure sensor at each data acquisition instant with each other and reading them into an upper computer as raw data, wherein the tilt angle \u03b8 z  is an angle between the y-axis and the x-y plane, the tilt angle \u03b8 x  is an angle between the y-axis and the y-z plane, the y-axis is parallel to the rigid cage channel and perpendicular to the front-wheel driving output shaft, the x-axis is perpendicular to the front-wheel driving output shaft and perpendicular to the rigid cage channel, the z-axis is perpendicular to the rigid cage channel and parallel to the front-wheel driving output shaft, the speed v is an operating speed of the patrol-inspection apparatus, the pressure P 1  is a pressure applied to the rigid cage channel by the front-wheel guide wheel, and the pressure P 2  is a pressure applied to the rigid cage channel by the rear-wheel guide wheel; b. accumulating successively the speed v and the inspection time difference between two adjacent data acquisition instants at every data acquisition instant to obtain a travelled distance, comparing the obtained travelled distance with a first difference between a total length of a single segment of rigid cage channel and a manually-defined high-speed patrol-inspection length at joints of ends of a single segment of rigid cage channel, if the result is less than the first difference, performing, automatically by the patrol-inspection apparatus, high-speed patrol-inspection, if the result is greater than the first difference, continuing with accumulation and comparing the result with the total length of a single segment of rigid cage channel, if the result is greater than the first difference and less than the total length of a single segment of rigid cage channel, performing, by the patrol-inspection apparatus, low-speed patrol-inspection, and if the result is greater than a total length of a single segment of rigid cage channel, clearing the accumulated result, to complete a cycle of adjustable-speed patrol-inspection process; c. taking the last data acquisition instant of the previous patrol-inspection cycle as the starting point; and d. prepeating the actions of b of the first stage until the periodic adjustable-speed inspection is completed for the entire target under inspection, and storing all the detected data; a second stage of calculation in which statistical data is processed, including: a. extracting the tilt angles \u03b8 z  and \u03b8 x  at each time acquisition instant, and calculating a second difference value between the pressures P 1  and P 2  at each time instant, determining whether the second difference value is 0, if the second difference value is zero, determining the tilt angle \u03b8 z  as valid, and if the second difference value is not zero, determining the tilt angle \u03b8 z  as invalid and taking a value of 0; b. calculating a relative displacement dimension in the x direction, a relative displacement dimension in the y direction, and a relative displacement dimension in the z direction of the front-wheel driving output shaft with respect to the rear-wheel driven output shaft at each data acquisition instant, wherein the relative displacement dimension in the x direction is calculated as a distance between the front and rear wheels multiplied by a cosine value of the tilt angle \u03b8 z  and then multiplied by a sine value of the tilt angle \u03b8 x , the relative displacement dimension in the y direction is calculated as the distance between the front and rear wheels multiplied by a cosine value of the tilt angle \u03b8 z  and then multiplied by a cosine value of the tilt angle \u03b8 x , and the relative displacement dimension in the z direction is calculated as the distance between the front and rear wheels multiplied by a cosine value of the tile angle \u03b8 x  and then multiplied by a sine value of the tilt angle \u03b8 x , wherein the distance between the front and rear wheels is a dimension of the spacing between the front-wheel driving output shaft and the rear-wheel driven output shaft; and c. storing the calculated results and completing calculation of all the data; a third stage of accumulation and comparison, including: a. assuming that the patrol-inspection apparatus is in a first patrol-inspection cycle and the absolute coordinate of the front-wheel driving output shaft at each data acquisition instant is known, where the x direction is 0, the y direction is an accumulated value of a speed v multiplied by the patrol-inspection time difference of the patrol-inspection apparatus, the z direction is 0, such an assumption being consistent with an initial operating-condition determination of the rigid cage channel inspection that there is no defect in the rigid cage channel during a first travel cycle; b. selecting a first data acquisition instant during the first patrol-inspection cycle as an initial reference point; c. accumulating successively a product of the speed v and the inspection time difference at every data acquisition instant subsequent to the initial reference point to obtain a travelled distance, comparing the obtained travelled distance with the distance between the front and rear wheels obtained in the actions of b of the second stage to find an inspection instant corresponding to a minimum absolute value of a third difference between the travelled distance and the distance between the front and rear wheels, and using this data acquisition instant as a target inspection point with respect to the reference point; d. calculating the absolute coordinate of the target inspection point by extracting the x absolute coordinate, the y absolute coordinate, and the z absolute coordinate of the initial reference point and summing them respectively with the relative displacement dimension in the x direction, the relative displacement dimension in the y direction, and the relative displacement dimension in the z direction of the target inspection point calculated in the actions of b of the second stage to obtain the absolute coordinate in the x direction, the absolute coordinate in the y direction, and the absolute coordinate in the z direction of the target inspection point; e. modifying the data acquisition instant following the initial reference point to the initial reference point; and f. repeating the actions of c, d, and e of the third stage until calculation of the absolute coordinate is completed for all the target inspection points; and a fourth stage of plotting and display, in which the absolute coordinate of each of the target inspection points is plotted the upper computer to complete the visual inspection.

Metadata:
- Claim Count in Document: 20.0
- Percentile: 97.0
- Lexical Diversity: 3.19737
- Patent Class: 73.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14432485', '15820634', '14668553', '15954730', '14248969']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6441377161663391
- 35 USC 102 Novelty (BERT): 0.4903380376143244
- Combined Prediction Score: 0.6287577483111376
- Mean Citation Score: 175.28741000000005
- Max Citation Score: 202.72812
- Similarity Product: 146.95678189326526

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 0
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test