CN117087639A - Small-size underground dumper brake safety control system based on big data - Google Patents
Small-size underground dumper brake safety control system based on big data Download PDFInfo
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- CN117087639A CN117087639A CN202311061469.1A CN202311061469A CN117087639A CN 117087639 A CN117087639 A CN 117087639A CN 202311061469 A CN202311061469 A CN 202311061469A CN 117087639 A CN117087639 A CN 117087639A
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- 238000011156 evaluation Methods 0.000 claims description 41
- 238000000034 method Methods 0.000 claims description 28
- 238000005299 abrasion Methods 0.000 claims description 24
- 238000004458 analytical method Methods 0.000 claims description 21
- 238000012545 processing Methods 0.000 claims description 20
- 238000001514 detection method Methods 0.000 claims description 18
- 238000013480 data collection Methods 0.000 claims description 14
- 238000013500 data storage Methods 0.000 claims description 12
- 230000008569 process Effects 0.000 claims description 11
- 238000009825 accumulation Methods 0.000 claims description 9
- 238000012360 testing method Methods 0.000 claims description 9
- 230000001133 acceleration Effects 0.000 claims description 6
- 238000004364 calculation method Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 230000009467 reduction Effects 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 3
- 230000001960 triggered effect Effects 0.000 claims description 3
- 230000001174 ascending effect Effects 0.000 claims 3
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- 230000000694 effects Effects 0.000 description 9
- 230000006872 improvement Effects 0.000 description 6
- 238000013461 design Methods 0.000 description 4
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/18—Safety devices; Monitoring
- B60T17/22—Devices for monitoring or checking brake systems; Signal devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T7/00—Brake-action initiating means
- B60T7/12—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger
- B60T7/16—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger operated by remote control, i.e. initiating means not mounted on vehicle
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Regulating Braking Force (AREA)
Abstract
The invention discloses a brake safety control system of a small-sized underground dumper based on big data, and particularly relates to the technical field of dumper braking.
Description
Technical Field
The invention relates to the technical field of dumper braking, in particular to a safety control system of a small underground dumper based on big data.
Background
In recent years, the speed of an automobile is continuously improved, the rear-end collision accident of the automobile is gradually increased, the braking effect of the automobile is directly related to the safety of the automobile braking, and the reason that the braking effect of the existing automobile is poor is that: the brake effect of the vehicle is poor due to the fact that the brake fluid in the brake oil cup is less, oil leakage, serious abrasion of the brake pad, overlarge gap between the brake hub and the brake pad and the like, and the vehicle braking effect is poor due to the fact that the service life of the vehicle, the serious abrasion of the brake pad and the increase of the distance between the hub and the brake pad are prolonged, and the safety and the stability of the vehicle in the braking process are poor;
in the prior art, the braking effect of the vehicle cannot be effectively and accurately detected, and meanwhile, the braking effect of the vehicle cannot be controlled in an auxiliary mode according to the magnitude relation between the actual braking of the vehicle and the set braking effect, so that the problem that the braking effect of the vehicle is poor due to abrasion of a brake pad and increase of a gap between a hub and the brake pad is solved, and in order to solve the problem, a small-sized underground dumper braking safety control system based on big data is designed.
Disclosure of Invention
In order to overcome the defects in the prior art, the embodiment of the invention provides a brake safety control system of a small-sized underground dumper based on big data, which aims to solve the problems in the background art.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the invention provides a brake safety control system of a small underground dumper based on big data, which comprises the following components:
and a data collection module: the system comprises a data analysis processing module, a data acquisition module, a data transmission module and a data transmission module, wherein the data acquisition module is used for acquiring the average running speed, cargo carrying capacity and braking distance of the small underground dump truck in the working process;
the brake detection module: for recording the running time of the small-sized underground dumper, the pressure value received by the brake pedal and the accumulated time length corresponding to the pressure value are sent to a parking brake analysis module;
parking brake analysis module: the brake detection module is used for receiving the data sent by the brake detection module and analyzing and comparing the received pressure value of the brake pedal with the pressure value range of the brake pedal corresponding to each set brake level;
wear treatment evaluation module: the system comprises a data storage module, a parking brake analysis module, a data processing evaluation module, a remote control module, a brake block processing evaluation module, a data processing module and a control module, wherein the data storage module is used for storing the brake grade corresponding to the vehicle and the accumulated time length corresponding to the brake grade sent by the parking brake analysis module, comparing the brake grade with each brake grade in the data storage module, extracting the abrasion influence factor corresponding to each brake grade, counting the theoretical abrasion coefficient corresponding to the brake block according to the abrasion influence factor corresponding to each brake grade corresponding to the vehicle and the accumulated time length corresponding to the brake grade, and sending the theoretical abrasion coefficient corresponding to the brake block to the remote control module by the abrasion processing evaluation module;
and a remote control module: the remote control module is used for receiving the brake evaluation coefficient sent by the abrasion processing evaluation module, comparing the brake evaluation coefficient with a preset brake evaluation coefficient threshold value of the small underground dumper, and automatically starting emergency braking and sending data information to the data storage module if the brake evaluation coefficient is smaller than the preset brake evaluation coefficient threshold value of the small underground dumper;
and a data storage module: the device is used for storing brake data, service time of a brake pad and wear coefficient of the brake pad of the small underground dumper.
As a further improvement of the invention, the data collection module collects the average running speed and cargo capacity of the small underground dumper in the working process, and the specific mode is as follows:
determining a driving route of the driver of the small-sized underground dumper through communication with the driver of the small-sized underground dumper, screening a map of the area through big data, and scaling the map according to the conversion ratioCalculating the actual distance, denoted as L, and recording departure time and arrival time of the small-sized underground dump truck, denoted as T 0 ，T 1 The speed V of the small-sized underground dump truck is known from the distance = speed x time:
each small underground dumper is respectively marked as a 1 ，a 2 ，a 3 ，......，a n The speed of each small underground dumper can be obtained by the formulaThe average speed vmon:
the staff installs a load sensor on the chassis of the small-sized underground dumper, is connected to the data collection module, and respectively numbers the load capacity of the small-sized underground dumper, which is marked as D 1 ，D 2 ，D 3 ，......，D n 。
As a further improvement of the invention, the data collection module collects the braking distance of the small underground dumper in the specific collection mode:
a distance sensor is arranged at the head of the small underground dumper by a worker, and the safety distance between the small underground dumper and the front dumper is measured and is marked as L 1 Selecting a safe test area, ensuring that a brake system and a brake of the small underground dumper are in an operating state, drawing a mark line at the starting point of the test area, focusing on the road condition before the test begins, putting feet on a brake pedal but not applying force, setting a preset signal mark, immediately pressing the brake pedal when the driver sees the signal mark, and measuring the mark line to the dumper after the dumper stopsThe distance after the vehicle stops is denoted as L 2 ；
The speed before braking and the speed after braking of the small underground dumper are respectively recorded as V 1 ，V 2 The braking time is recorded as T 2 Let the braking deceleration of the small-sized underground dumper be V Reduction of The method comprises the following steps:
V reduction of ＝(V 2 -V 1 )/T 2 ；
Dynamic braking distance L of the small-sized underground dump truck Dynamic movement The method comprises the following steps:
L dynamic movement ＝(V 2 -V 1 )/T 2 *T；
Wherein T is the time required by dynamic braking, and the braking distance of the small underground dumper is L Braking system ：
L Braking system ＝L 1 +L 2 +L Dynamic movement 。
As a further improvement of the invention, the brake detection module acquires the pressure value received by the brake pedal and the accumulated time length corresponding to the pressure value, and the specific acquisition mode is as follows:
a worker installs a piezoelectric sensor on a brake pedal of the small underground dumper, when the driver of the small underground dumper brakes the dumper, the brake pedal is triggered by an applied external force, when the external force is applied to a piezoelectric material, the lattice structure of the material is slightly deformed, the separation between positive and negative charges is caused, the charges are transmitted to a circuit of the sensor through an electrode lead, and further, an electric signal is generated, and the brake detection module automatically converts the electric signal into a digital signal through adopting an analog-to-digital converter, and an actual pressure value is obtained through processing and calculating the digital signal of the sensor;
the method comprises the steps that a staff installs a micro timer on a preset piezoelectric sensor, when a brake pedal is subjected to external force, the micro timer is started to start timing, timing is stopped until the external force is removed, and the accumulated time corresponding to the pressure value is obtained by subtracting the starting time from the stopping time.
As a further improvement of the invention, the theoretical wear coefficient calculation formula corresponding to the brake pad of the small-sized underground dumper is as follows:
the theoretical abrasion coefficient corresponding to the brake pad of the small underground dumper is recorded as alpha Theory of ：
Wherein delta is expressed as a wear constant, epsilon i is expressed as a wear influence factor corresponding to the ith brake braking level, ti is expressed as a brake accumulation duration corresponding to the ith brake braking level, delta T is expressed as an accumulation time period, and beta is expressed as a duration influence factor corresponding to the accumulation time period.
As a further improvement of the invention, the parking brake analysis module analyzes and compares the received pressure value of the brake pedal with the pressure value range of the brake pedal corresponding to each set brake level, and the specific comparison mode is as follows:
the method comprises the steps that the braking grade of the small underground dumper is set based on the braking performance and the safety requirement of a vehicle, when the pressure value is 50-100 units, the small underground dumper is in an emergency braking grade, when the pressure value is 30-50 units, the small underground dumper is in a normal braking grade, the parking braking analysis module automatically compares the actually obtained pedal pressure value with a braking pedal pressure value range corresponding to each set braking grade, and based on the result of comparison analysis, the corresponding braking grade is output.
As a further improvement of the present invention, the calculation formula of the brake evaluation coefficient in the wear evaluation module is:
setting the brake evaluation coefficient toThen->The method comprises the following steps:
wherein DeltaL is expressed as a preset gap width threshold value, L Gap of Expressed as the width of the gap between the hub and the brake pad, alpha Theory of 、α Actual practice is that of Respectively expressed as a theoretical wear coefficient and an actual wear coefficient of a brake pad of the underground dumper Theory of 、a Actual practice is that of The theoretical braking acceleration and the actual braking acceleration of the vehicle in the braking process are respectively expressed, delta is expressed as a wear constant, ti is expressed as the accumulated duration of the brake corresponding to the ith braking level, and beta is expressed as a duration influence factor corresponding to the accumulated time period.
The invention has the technical effects and advantages that:
1. the braking safety performance is improved: by analyzing and processing big data, the system can monitor the braking parameters and the driving state of the vehicle in real time. And the potential braking safety problem is monitored and early-warned in time, so that the braking safety performance of the vehicle is improved.
2. Realizing intelligent brake control: based on analysis of big data, the system can realize intelligent braking control by dynamically adjusting parameters of the braking system, and according to real-time data and a prediction algorithm, the system can automatically adjust braking force, braking distance and braking time, so that more accurate and efficient braking performance is provided.
3. Predicting and preventing brake failure: through the mobile phone and analysis of a large amount of brake data and fault information, the system can establish a fault prediction model and discover potential brake faults in advance, which is beneficial to maintenance and repair in advance and reduces safety risks caused by braking and faults.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, the invention provides a brake safety control system of a small-sized underground dumper based on big data, which comprises a data collection module, a brake detection module, a parking brake analysis module, a wear processing evaluation module, a remote control module and a data storage module.
The data collection module is connected with the brake detection module, the brake detection module is connected with the parking brake analysis module, the parking brake analysis module is connected with the abrasion processing evaluation module, the abrasion processing evaluation module is connected with the remote control module, and the remote control module is connected with the data storage module.
The data collection module is used for collecting average running speed, cargo carrying capacity and braking distance of the small underground dumper in the working process.
In one possible design, the data collection module collects average running speed and cargo carrying capacity of the small underground dumper in the working process, and the specific mode is as follows:
determining a driving route of the driver of the small-sized underground dumper by communicating with the driver of the small-sized underground dumper, screening a map of the area by big data, converting the actual distance according to conversion proportion, recording the departure time and the arrival time of the small-sized underground dumper as L, recording the departure time and the arrival time of the small-sized underground dumper as T respectively 0 ，T 1 The speed V of the small-sized underground dump truck is known from the distance = speed x time:
each small underground dumper is respectively marked as a 1 ，a 2 ，a 3 ，......，a n The speed of each small underground dumper can be obtained by the formulaThe average speed vmon:
the staff installs a load sensor on the chassis of the small-sized underground dumper, is connected to the data collection module, and respectively numbers the load capacity of the small-sized underground dumper, which is marked as D 1 ，D 2 ，D 3 ，......，D n 。
Further, the data collection module collects the braking distance of the small underground dumper, and the specific collection mode is as follows:
a distance sensor is arranged at the head of the small underground dumper by a worker, and the safety distance between the small underground dumper and the front dumper is measured and is marked as L 1 Selecting a safe test area, ensuring that a brake system and a brake of the small underground dumper are in an operating state, drawing a mark line at the starting point of the test area, focusing on the road condition before the test starts by a driver, putting feet on a brake pedal but not applying force, setting a preset signal mark, immediately pressing the brake pedal when the driver sees the signal mark, measuring the distance from the mark line to the stop of the dumper after the dumper stops, and marking as L 2 ；
The speed before braking and the speed after braking of the small underground dumper are respectively recorded as V 1 ，V 2 The braking time is recorded as T 2 Let the braking deceleration of the small-sized underground dumper be V Reduction of The method comprises the following steps:
V reduction of ＝(V 2 -V 1 )/T 2 ；
Dynamic braking distance L of the small-sized underground dump truck Dynamic movement The method comprises the following steps:
L dynamic movement ＝(V 2 -V 1 )/T 2 *T；
Wherein T is the time required by dynamic braking, and the braking distance of the small underground dumper is L Braking system ：
L Braking system ＝L 1 +L 2 +L Dynamic movement 。
The brake detection module is used for recording the pressure value received by the brake pedal and the accumulated time length corresponding to the pressure value when the small-sized underground dump truck is driven.
In one possible design, the brake detection module obtains a pressure value received by a brake pedal and an accumulated duration corresponding to the pressure value, and the specific obtaining mode is as follows:
a worker installs a piezoelectric sensor on a brake pedal of the small underground dumper, when the driver of the small underground dumper brakes the dumper, the brake pedal is triggered by an applied external force, when the external force is applied to a piezoelectric material, the lattice structure of the material is slightly deformed, the separation between positive and negative charges is caused, the charges are transmitted to a circuit of the sensor through an electrode lead, and further, an electric signal is generated, and the brake detection module automatically converts the electric signal into a digital signal through adopting an analog-to-digital converter, and an actual pressure value is obtained through processing and calculating the digital signal of the sensor;
the method comprises the steps that a staff installs a micro timer on a preset piezoelectric sensor, when a brake pedal is subjected to external force, the micro timer is started to start timing, timing is stopped until the external force is removed, and the accumulated time corresponding to the pressure value is obtained by subtracting the starting time from the stopping time.
The parking brake analysis module is used for receiving the data sent by the brake detection module and analyzing and comparing the received pressure value of the brake pedal with the set pressure value range of the brake pedal corresponding to each brake level.
In one possible design, the theoretical wear coefficient calculation formula corresponding to the brake pad of the small-sized underground dumper is as follows:
the theoretical abrasion coefficient corresponding to the brake pad of the small underground dumper is recorded as alpha Theory of ：
Wherein delta is expressed as a wear constant, epsilon i is expressed as a wear influence factor corresponding to the ith brake braking level, ti is expressed as a brake accumulation duration corresponding to the ith brake braking level, delta T is expressed as an accumulation time period, and beta is expressed as a duration influence factor corresponding to the accumulation time period.
The wear processing evaluation module is used for receiving the brake grade corresponding to the vehicle and the accumulated time length corresponding to the brake grade, which are sent by the parking brake analysis module, comparing the brake grade with each brake grade in the data storage module, extracting the wear influence factor corresponding to each brake grade, and counting the theoretical wear coefficient corresponding to the brake block according to the wear influence factor corresponding to each brake grade corresponding to the vehicle and the accumulated time length corresponding to the brake grade.
In one possible design, the calculation formula of the brake braking evaluation coefficient in the wear evaluation module is:
setting the brake evaluation coefficient toThen->The method comprises the following steps:
wherein DeltaL is expressed as a preset gap width threshold value, L Gap of Expressed as the width of the gap between the hub and the brake pad, alpha Theory of 、α Actual practice is that of Theory respectively expressed as brake pads of underground dumperCoefficient of wear and actual coefficient of wear, a Theory of 、a Actual practice is that of The theoretical braking acceleration and the actual braking acceleration of the vehicle in the braking process are respectively expressed, delta is expressed as a wear constant, ti is expressed as the accumulated duration of the brake corresponding to the ith braking level, and beta is expressed as a duration influence factor corresponding to the accumulated time period.
The remote control module is used for receiving the brake and brake evaluation coefficient sent by the abrasion processing evaluation module, comparing the brake and brake evaluation coefficient with a preset brake and brake evaluation coefficient threshold value of the small underground dumper, and automatically starting emergency braking if the brake and brake evaluation coefficient threshold value of the small underground dumper is smaller than the preset brake and brake evaluation coefficient threshold value of the small underground dumper.
The data storage module is used for storing brake data of the small underground dumper, the service time of the brake pad and the abrasion coefficient of the brake pad.
In this embodiment, the present invention collects the gap width between the hub and the brake pad of the small-sized underground dumper, the average running speed, and the braking distance of the pressure value received by the brake pedal, analyzes and compares the pressure value received by the brake pedal of the small-sized underground dumper with the pressure value range received by the brake pedal corresponding to the set braking grade of the small-sized underground dumper, calculates the brake pad abrasion coefficient of the small-sized underground dumper, compares the brake pad abrasion coefficient of the small-sized underground dumper with the preset brake evaluation coefficient threshold of the small-sized underground dumper, and if the brake abrasion coefficient of the small-sized underground dumper is smaller than the preset brake evaluation coefficient threshold of the small-sized underground dumper, the remote control module automatically starts emergency braking, and stores the brake parameter data of the small-sized underground dumper into the database.
Finally: the foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (7)
1. The utility model provides a small-size underground dumper brake safety control system based on big data which characterized in that includes:
and a data collection module: the device is used for collecting the average running speed, cargo carrying capacity and braking distance of the small underground dumper in the working process and transmitting the data to the braking detection module;
the brake detection module: for recording the running time of the small-sized underground dumper, the pressure value received by the brake pedal and the accumulated time length corresponding to the pressure value are sent to a parking brake analysis module;
parking brake analysis module: the brake detection module is used for receiving the data sent by the brake detection module and analyzing and comparing the received pressure value of the brake pedal with the pressure value range of the brake pedal corresponding to each set brake level;
wear treatment evaluation module: the system comprises a data storage module, a parking brake analysis module, a data processing evaluation module, a remote control module, a brake block processing evaluation module, a data processing module and a control module, wherein the data storage module is used for storing the brake grade corresponding to the vehicle and the accumulated time length corresponding to the brake grade sent by the parking brake analysis module, comparing the brake grade with each brake grade in the data storage module, extracting the abrasion influence factor corresponding to each brake grade, counting the theoretical abrasion coefficient corresponding to the brake block according to the abrasion influence factor corresponding to each brake grade corresponding to the vehicle and the accumulated time length corresponding to the brake grade, and sending the theoretical abrasion coefficient corresponding to the brake block to the remote control module by the abrasion processing evaluation module;
and a remote control module: is used for receiving the brake evaluation coefficient sent by the wear processing evaluation module and comparing the brake evaluation coefficient with a preset brake evaluation coefficient threshold value of the small-sized underground dumper, if the brake evaluation coefficient threshold value is smaller than a preset brake evaluation coefficient threshold value of the small underground dumper, the remote control module automatically starts emergency braking and sends data information to the database;
database: the device is used for storing brake data, service time of a brake pad and wear coefficient of the brake pad of the small underground dumper.
2. The brake safety control system of the small-sized underground dumper based on big data according to claim 1, wherein the data collection module collects average running speeds and cargo loads of the small-sized underground dumper under different gradients in the working process, and the specific mode is as follows:
let the ascending slope encountered by the target small-sized underground dumper in the running process be m, wherein m=1, 2, … … and m, and the ascending slope section between the departure place and the destination of the target small-sized underground dumper is denoted as a m ；
Obtaining a by inquiring road construction data m Is a sum of the slope heights of (a) m Is a slope length of a m Is set as the slope height ofa m Is set as the slope lengtha mj Denoted as j-th uphill road section, where j=1, 2, … …, j, a is calculated m Inclination coefficient of +.>
Respectively delta,And +.>Respectively bring in formula->Wherein->Denoted as a target small-sized underground dumper at a mj V of (V) 0 The initial speed of the target small-sized underground dumper before ascending the slope is expressed;
let the average speed of the target small-sized underground dumper on the uphill road be V':
wherein the method comprises the steps ofThe method is characterized in that the method is represented as an influence factor of a target small-sized underground dumper on an uphill section, a staff installs a load sensor on a chassis of the small-sized underground dumper, obtains the load capacity of the target small-sized underground dumper through the load sensor, numbers the load capacity of the small-sized underground dumper respectively, and marks the load capacity as D 1 ，D 2 ，D 3 ，......，D n And is connected to the data collection module.
3. The small-sized underground dumper brake safety control system based on big data according to claim 1, wherein the data collection module collects the brake distance of the small-sized underground dumper in the specific collection mode:
a distance sensor is arranged at the head of the small underground dumper by a worker, and the safety distance between the small underground dumper and the front dumper is measured and is marked as L 1 Selecting a safe test area, ensuring that a brake system and a brake of the small underground dumper are in an operating state, drawing a mark line at the starting point of the test area, focusing on the road condition before the test starts by a driver, putting feet on a brake pedal but not applying force, setting a preset signal mark, immediately pressing the brake pedal when the driver sees the signal mark, measuring the distance from the mark line to the stop of the dumper after the dumper stops, and marking as L 2 ；
The speed before braking and the speed after braking of the small underground dumper are respectively recorded as V 1 ，V 2 The braking time is recorded as T 2 Let the braking deceleration of the small-sized underground dumper be V Reduction of The method comprises the following steps:
V reduction of ＝(V 2 -V 1 )/T 2 ；
Dynamic braking distance L of the small-sized underground dump truck Dynamic movement The method comprises the following steps:
L dynamic movement ＝(V 2 -V 1 )/T 2 *T；
Wherein T is the time required by dynamic braking, and the braking distance of the small underground dumper is L Braking system ：
L Braking system ＝L 1 +L 2 +L Dynamic movement 。
4. The brake safety control system of the small-sized underground dumper based on big data according to claim 1, wherein the brake detection module obtains a pressure value received by a brake pedal and an accumulated duration corresponding to the pressure value, and the specific obtaining mode is as follows:
a worker installs a piezoelectric sensor on a brake pedal of the small underground dumper, when the driver of the small underground dumper brakes the dumper, the brake pedal is triggered by an applied external force, when the external force is applied to a piezoelectric material, the lattice structure of the material is slightly deformed, the separation between positive and negative charges is caused, the charges are transmitted to a circuit of the sensor through an electrode lead, and further, an electric signal is generated, and the brake detection module automatically converts the electric signal into a digital signal through adopting an analog-to-digital converter, and an actual pressure value is obtained through processing and calculating the digital signal of the sensor;
the method comprises the steps that a staff installs a micro timer on a preset piezoelectric sensor, when a brake pedal is subjected to external force, the micro timer is started to start timing, timing is stopped until the external force is removed, and the accumulated time corresponding to the pressure value is obtained by subtracting the starting time from the stopping time.
5. The brake safety control system of the small-sized underground dumper based on big data according to claim 1, wherein a theoretical wear coefficient calculation formula corresponding to a brake pad of the small-sized underground dumper is as follows:
the theoretical abrasion coefficient corresponding to the brake pad of the small underground dumper is recorded as alpha Theory of ：
Wherein delta is expressed as a wear constant, epsilon i is expressed as a wear influence factor corresponding to the ith brake braking level, ti is expressed as a brake accumulation duration corresponding to the ith brake braking level, delta T is expressed as an accumulation time period, and beta is expressed as a duration influence factor corresponding to the accumulation time period.
6. The brake safety control system of the small-sized underground dump truck based on big data according to claim 1, wherein the parking brake analysis module analyzes and compares the received pressure value of the brake pedal with the pressure value range of the brake pedal corresponding to each set brake level, and the specific comparison mode is as follows:
the method comprises the steps that the braking grade of the small underground dumper is set based on the braking performance and the safety requirement of a vehicle, when the pressure value is 50-100 units, the small underground dumper is in an emergency braking grade, when the pressure value is 30-50 units, the small underground dumper is in a normal braking grade, the parking braking analysis module automatically compares the actually obtained pedal pressure value with a braking pedal pressure value range corresponding to each set braking grade, and based on the result of comparison analysis, the corresponding braking grade is output.
7. The small-sized underground dumper brake safety control system based on big data according to claim 1, wherein a calculation formula of a brake evaluation coefficient in the wear evaluation module is as follows:
setting the brake evaluation coefficient toThen->The method comprises the following steps:
wherein DeltaL is expressed as a preset gap width threshold value, L Gap of Expressed as the width of the gap between the hub and the brake pad, alpha Theory of 、α Actual practice is that of Respectively expressed as a theoretical wear coefficient and an actual wear coefficient of a brake pad of the underground dumper Theory of 、a Actual practice is that of The theoretical braking acceleration and the actual braking acceleration of the vehicle in the braking process are respectively expressed, delta is expressed as a wear constant, ti is expressed as the accumulated duration of the brake corresponding to the ith braking level, and beta is expressed as a duration influence factor corresponding to the accumulated time period.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311061469.1A CN117087639A (en) | 2023-08-22 | 2023-08-22 | Small-size underground dumper brake safety control system based on big data |
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| CN202311061469.1A CN117087639A (en) | 2023-08-22 | 2023-08-22 | Small-size underground dumper brake safety control system based on big data |
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| CN202311061469.1A Pending CN117087639A (en) | 2023-08-22 | 2023-08-22 | Small-size underground dumper brake safety control system based on big data |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2010136219A (en) * | 2010-09-01 | 2012-03-10 | Общество с ограниченной ответственностью "АВП Технология" (RU) | METHOD FOR IMPROVING THE SAFETY LEVEL IN THE WAY TO RESEARCH THE MOBILE COMPOSITION ON THE BASIS OF THE FORECASTED CALCULATION OF THE MOVEMENT SPEED AND THE METHOD FOR DETERMINING THE MOBILE BRAKE BRAKING MODE ON THE BASIS OF ESTIMATING THE EFFICIENCY ASSESSMENT |
| CN111409615A (en) * | 2020-04-13 | 2020-07-14 | 朱永凤 | New energy automobile brake safety detection system based on big data |
| CN116538219A (en) * | 2023-01-16 | 2023-08-04 | 深圳市爱夫卡科技股份有限公司 | Method and device for estimating wear of brake pad of electrohydraulic brake system |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2010136219A (en) * | 2010-09-01 | 2012-03-10 | Общество с ограниченной ответственностью "АВП Технология" (RU) | METHOD FOR IMPROVING THE SAFETY LEVEL IN THE WAY TO RESEARCH THE MOBILE COMPOSITION ON THE BASIS OF THE FORECASTED CALCULATION OF THE MOVEMENT SPEED AND THE METHOD FOR DETERMINING THE MOBILE BRAKE BRAKING MODE ON THE BASIS OF ESTIMATING THE EFFICIENCY ASSESSMENT |
| CN111409615A (en) * | 2020-04-13 | 2020-07-14 | 朱永凤 | New energy automobile brake safety detection system based on big data |
| CN116538219A (en) * | 2023-01-16 | 2023-08-04 | 深圳市爱夫卡科技股份有限公司 | Method and device for estimating wear of brake pad of electrohydraulic brake system |
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