CN116164861A - Method, device, equipment and storage medium for detecting temperature of brake disc on downhill road section - Google Patents
Method, device, equipment and storage medium for detecting temperature of brake disc on downhill road section Download PDFInfo
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- G—PHYSICS
- G01—MEASURING; TESTING
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- G01K13/00—Thermometers specially adapted for specific purposes
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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
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- B60T17/22—Devices for monitoring or checking brake systems; Signal devices
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- G—PHYSICS
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Abstract
The invention discloses a method, a device, equipment and a storage medium for detecting the temperature of a brake disc of a downhill road section, wherein the method comprises the steps of responding to running operation of vehicles based on entering the downhill road section, and acquiring the temperature of the brake disc of a preset number of vehicles by a starting end of the downhill road section along the running direction through continuous preset number of temperature detectors; generating a first rectangular coordinate system by taking a preset distance as a horizontal axis and taking temperature as a vertical axis; generating a first coordinate point according to each preset distance as an abscissa and each brake disc temperature as an ordinate, and outputting each first coordinate point in a first right-angle coordinate system; sequentially connecting each first coordinate point to form a curve; acquiring the slope of the curve according to each preset distance; judging whether the slope exceeds a first preset threshold value; if yes, generating a brake disc damage early warning signal and sending the early warning signal to the vehicle. The temperature change speed of the brake disc is reflected through the slope of the curve, and a driver is timely notified before the brake disc reaches the damage temperature.
Description
Technical Field
The invention relates to the technical field of traffic auxiliary facilities, in particular to a method, a device, equipment and a storage medium for detecting the temperature of a brake disc on a downhill road section.
Background
In the driving scene of long downhill road section, because the vehicle needs continuous braking in order to reduce the speed of traveling, because the brake subassembly of vehicle mainly is brake block and the brake piece of butt brake block, the temperature of brake block increases after continuous braking, along with the temperature increases, causes brake block and brake piece to damage easily, leads to the brake failure to cause the vehicle out of control, the traffic accident takes place and causes loss of life and property.
At present, warning boards are arranged on downhill sections to inform drivers of the fact that engine braking is utilized or intermittent braking is used, so that temperature rise of brake pads and brake pieces is prevented.
Chinese patent ' a brake disc temperature detection device and a detection method thereof ' (application number: 201911041155.9) discloses ' step 1: uniformly arranging a plurality of patch type sensors circumferentially on the periphery of the contact position of the brake pad and the periphery of the disc, and detecting circumferential temperature change of the periphery of the brake disc; step 2: a plurality of patch sensors are arranged on the outer side and the inner side of the patch sensors in the step 1 along the radial direction, and the radial temperature change of the periphery of the brake disc is measured; step 3: and (5) collecting circumferential temperature and radial temperature of the periphery of the disc, fitting a Besse l curve, and calculating the temperature distribution of the brake disc. The temperature of the brake disc is detected through the plurality of patch sensors, and the patch sensors need additional power supply and can possibly be separated, fall off and the like in the running process of the vehicle, and the temperature of the brake disc can only be obtained, so that the using state of the brake disc can not be continuously judged according to the running state, and a driver is reminded or early warned based on the using state.
China patent ' brake pad temperature detection system and method based on infrared thermal imaging technology ' (application number: 201510425457.1) discloses that ' the system comprises: the infrared thermal imager is used for collecting infrared images in the monitoring area and transmitting the infrared images to the server software; the visible light imaging instrument is used for acquiring visible light images in a visible light monitoring area and transmitting the visible light images to the server software; the server software detects whether a brake pad of the running vehicle reaches an infrared monitoring area or not through analyzing and processing a visible light image transmitted by a visible light imager, and transmits the current time, the highest temperature value and the current infrared image to the client software of a monitoring room through a local area network; the client software is divided into a display module and an alarm module, wherein the display module is used for displaying the current time, the highest temperature value and the infrared image transmitted by the server software, the alarm module is used for detecting the highest temperature value transmitted by the server software by setting an alarm threshold, and the monitoring room is informed of taking measures once the highest temperature value is higher than the alarm threshold, so that accident potential caused by overhigh temperature of the brake pad is reduced. The patent "the external receiving end is notified by threshold setting by arranging an infrared imager at one side of the road to detect the brake disc temperature of the vehicle. The patent also only can acquire the temperature of the brake disc and send the temperature to an external receiving end, and can not continuously judge the use state of the brake disc according to the driving state so as to give a prompt or early warning to a driver based on the use state. The above two patents do not disclose technical contents related to continuous judgment of the usage state of the brake disc according to the running state, nor the requirements and prospects for continuous judgment of the usage state of the brake disc according to the running state.
Disclosure of Invention
The invention mainly aims to provide a method, a device, equipment and a storage medium for detecting the temperature of a brake disc on a downhill road section, which are used for solving the problem that the temperature detection device in the prior art cannot continuously judge the use state of the brake disc according to the running state so as to remind or early warn a driver based on the use state.
In order to achieve the above purpose, the present invention provides the following technical solutions:
a brake disc temperature detection method for a downhill road section including at least two temperature detectors installed on a road surface at a preset distance in a traveling direction, a detection port of each temperature detector facing a brake disc of a vehicle, the brake disc temperature detection method comprising:
responding to the running operation of the vehicle based on entering a downhill road section, and acquiring the brake disc temperatures of the preset number of vehicles through the continuous preset number of temperature detectors at the starting end of the downhill road section along the running direction;
generating a first rectangular coordinate system by taking the preset distance as a horizontal axis and taking the temperature as a vertical axis;
generating a first coordinate point according to each preset distance as an abscissa and each brake disc temperature as an ordinate, and outputting each first coordinate point in the first right-angle coordinate system;
sequentially connecting each first coordinate point to form a curve;
acquiring the slope of the curve according to each preset distance;
judging whether the slope exceeds a first preset threshold value or not;
if yes, generating a brake disc damage early warning signal and sending the early warning signal to the vehicle.
In some embodiments, determining whether the slope is greater than a first preset threshold value, then comprises:
if not, judging whether the temperature of each brake disc exceeds a second preset threshold value;
if yes, acquiring the temperature of the brake disc exceeding the second preset threshold value and marking the temperature as the early warning temperature;
acquiring the distance from the temperature detector matched with the early warning temperature to the starting end of the downhill road section and taking the distance as an early warning distance;
and sending the early warning temperature and the early warning distance to the vehicle.
In some embodiments, acquiring the brake disc temperature exceeding the second preset threshold and marking as the pre-warning temperature, and then, including:
acquiring early warning temperatures and early warning distances of a plurality of different vehicles;
generating a second rectangular coordinate system by taking the preset distance as a horizontal axis and the temperature as a vertical axis;
generating a second coordinate point according to the abscissa of each early warning distance and the ordinate of each early warning temperature, and outputting each second coordinate point in the second rectangular coordinate system;
calculating the abscissa dispersion of all the second coordinate points according to the formula (1):
wherein sigma 1 2 A is the dispersion of the abscissa, a i Mu for the abscissa of each second coordinate point 1 Is the average value of the abscissa of all the second coordinate points, n 1 The number of the abscissas of all the second coordinate points;
mu 1 The value of (2) is taken as a distance early-warning abscissa, a zero value is taken as a distance early-warning ordinate, and a distance early-warning coordinate is generated in the second rectangular coordinate system;
taking the value of the abscissa dispersion as the transverse axis length of the second rectangular coordinate system, enabling the midpoint of the transverse axis length to coincide with the distance early warning coordinates, and marking the values of the abscissas of the two endpoints of the transverse axis length as early warning distances with downhill road sections respectively;
and marking the two early warning distances as a brake overheat reminding road section and sending the brake overheat reminding road section to the vehicle.
In some embodiments, generating a second coordinate point according to each early warning distance as an abscissa and each early warning temperature as an ordinate, and outputting each second coordinate point in the second rectangular coordinate system, and then, including:
calculating the ordinate dispersion of all the second coordinate points according to the formula (2):
wherein sigma 2 2 As ordinate dispersion, b i Mu for the ordinate of each second coordinate point 2 Is the average value of the ordinate of all the second coordinate points, n 2 The number of the ordinate of all the second coordinate points;
mu 2 The value of (2) is taken as a temperature early-warning ordinate, a zero value is taken as a temperature early-warning abscissa, and a temperature early-warning coordinate is generated in the second rectangular coordinate system;
taking the value of the ordinate dispersion as the longitudinal axis length of the second rectangular coordinate system, enabling the midpoint of the longitudinal axis length to coincide with the temperature early warning coordinate, and marking the value of the ordinate of the two endpoints of the longitudinal axis length as the early warning temperature of the brake overheat reminding road section;
and sending the early warning temperature to the vehicle.
In some embodiments, the two warning distances are marked as brake overheat reminder segments and sent to the vehicle, and then comprise:
acquiring the real-time position of the vehicle according to the position of each temperature detector on a downhill road section, and judging whether the vehicle is positioned in the brake overheat reminding road section;
if yes, judging the current speed of the vehicle according to the time interval of each temperature detector in the brake overheat reminding road section of the vehicle;
judging whether the current speed is increased compared with the last current speed;
if yes, a deceleration reminding signal is generated and sent to the vehicle.
In some embodiments, a deceleration alert signal is generated and sent to the vehicle, after which it includes:
obtaining the difference value of each current speed compared with the previous current speed respectively;
judging whether each difference value is increased compared with the last difference value;
if yes, generating a danger early warning signal and sending the danger early warning signal to the vehicle;
and sending the position of the lane closest to the real-time position to the vehicle according to the real-time position.
In some embodiments, a hazard warning signal is generated and sent to the vehicle, after which it includes:
and sending the brake disc damage early warning signal and the danger early warning signal to a server side.
In order to achieve the above purpose, the present invention further provides the following technical solutions:
a brake disc temperature detection device for a downhill path, the monitoring device comprising:
the response and acquisition module is used for responding to the running operation of the vehicle based on entering a downhill road section, and acquiring the brake disc temperatures of the preset number of vehicles through the continuous preset number of temperature detectors at the starting end of the downhill road section along the running direction;
the first calculation module is used for generating a first right-angle coordinate system by taking the preset distance as a horizontal axis and taking the temperature as a vertical axis;
the second calculation module is used for generating a first coordinate point according to each preset distance as an abscissa and each brake disc temperature as an ordinate, and outputting each first coordinate point in the first right-angle coordinate system;
the third calculation module is used for sequentially connecting each first coordinate point to form a curve;
a fourth calculation module, configured to obtain a slope of the curve according to each preset distance;
the judging module is used for judging whether the slope exceeds a first preset threshold value or not;
and the signal generation module is used for generating a brake disc damage early warning signal and sending the brake disc damage early warning signal to the vehicle if the slope exceeds a first preset threshold value.
In order to achieve the above purpose, the present invention further provides the following technical solutions:
an electronic device comprising a processor, a memory coupled to the processor, the memory storing program instructions executable by the processor; and the processor executes the program instructions stored in the memory to realize the brake disc temperature detection method of the downhill road section.
In order to achieve the above purpose, the present invention further provides the following technical solutions:
a storage medium having stored therein program instructions which, when executed by a processor, implement a brake disc temperature detection method enabling a downhill path section as described above.
According to the invention, the brake disc temperatures of a preset number of vehicles are obtained through continuous preset number of temperature detectors at the starting end of a downhill road section along the advancing direction, a first right-angle coordinate system is generated by taking a preset distance as a horizontal axis and taking the temperature as a vertical axis, a plurality of first coordinate points are generated according to each preset distance as an abscissa and each brake disc temperature as an ordinate, the slope of a curve generated by the plurality of first coordinate points is judged, the temperature change speed of the brake disc is reflected by the slope of the curve, when the temperature change speed of the brake disc exceeds a first preset threshold value, the fact that the temperature of the brake disc is too fast is indicated, the brake disc is deformed and a braking part is deformed, or a water spray cooling system stops working, and at the moment, a brake disc damage early warning signal is generated and sent to the vehicle, so that a driver can completely brake the vehicle and overhaul before the brake disc or the braking part is completely damaged. The temperature change speed of the brake disc is reflected through the slope of the curve, and a driver is timely notified before the brake disc reaches the damage temperature, so that the situation that the brake disc is damaged and the vehicle is out of control is avoided when the temperature of the brake disc reaches a higher temperature.
Drawings
FIG. 1 is a schematic flow chart of steps of an embodiment of a method for detecting brake disc temperature in a downhill path of the present application;
FIG. 2 is a functional block diagram of one embodiment of a brake disc temperature sensing device for downhill path segments of the present application;
FIG. 3 is a schematic structural diagram of one embodiment of an electronic device of the present application;
FIG. 4 is a schematic diagram illustrating the structure of one embodiment of a storage medium of the present application.
Detailed Description
The following description of the technical solutions in the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
The terms "first," "second," "third," and the like in this application are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "first," "second," and "third" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise. All directional indications (such as up, down, left, right, front, back … …) in the embodiments of the present application are merely used to explain the relative positional relationship, movement, etc. between the components in a particular gesture (as shown in the drawings), and if the particular gesture changes, the directional indication changes accordingly. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may include other steps or elements not listed or inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.
Fig. 1 illustrates an embodiment of a brake disc temperature detection method for a downhill path of the present application, the downhill path including at least two temperature detectors mounted on a road surface at predetermined intervals along a traveling direction, a detection port of each temperature detector facing a brake disc of a vehicle, referring to fig. 1, the brake disc temperature detection method includes:
step S1, in response to a running operation of the vehicle based on entering a downhill road section, acquiring brake disc temperatures of a preset number of vehicles through a continuous preset number of temperature detectors at the starting end of the downhill road section along the running direction.
Step S2, a first rectangular coordinate system is generated by taking a preset distance as a horizontal axis and taking temperature as a vertical axis.
And S3, generating a first coordinate point according to each preset distance as an abscissa and each brake disc temperature as an ordinate, and outputting each first coordinate point in a first right-angle coordinate system.
And S4, sequentially connecting each first coordinate point to form a curve.
And S5, acquiring the slope of the curve according to each preset distance.
And S6, judging whether the slope exceeds a first preset threshold, if so, executing the step S7.
And S7, generating a brake disc damage early warning signal and sending the signal to the vehicle.
Further, step S6 is executed to determine whether the slope exceeds the first preset threshold, and if not, step S8 is executed.
And S8, judging whether the temperature of each brake disc exceeds a second preset threshold value, and if so, executing the step S9.
And S9, acquiring the brake disc temperature exceeding a second preset threshold value and marking the brake disc temperature as the early warning temperature.
And S10, acquiring the distance from the temperature detector matched with the early warning temperature to the starting end of the downhill road section and taking the distance as the early warning distance.
Step S11, the early warning temperature and the early warning distance are sent to the vehicle.
Further, after step S9, it includes:
step S91, obtaining early warning temperatures and early warning distances of a plurality of different vehicles.
In step S92, a second rectangular coordinate system is generated with the preset distance as the horizontal axis and the temperature as the vertical axis.
Step S92, a second coordinate point is generated according to the abscissa of each early warning distance and the ordinate of each early warning temperature, and each second coordinate point is output in a second rectangular coordinate system.
Step S93, calculating the abscissa dispersion of all the second coordinate points according to formula (1):
wherein sigma 1 2 A is the dispersion of the abscissa, a i Mu for the abscissa of each second coordinate point 1 Is the average value of the abscissa of all the second coordinate points, n 1 The number of abscissas of all the second coordinate points.
Step S94, in mu 1 And (3) taking the value of (2) as a distance early-warning abscissa, taking a zero value as a distance early-warning ordinate, and generating the distance early-warning coordinate in a second rectangular coordinate system.
And S95, taking the value of the abscissa dispersion as the transverse axis length of the second rectangular coordinate system, overlapping the midpoint of the transverse axis length with the distance early warning coordinates, and marking the values of the transverse coordinates of the two endpoints of the transverse axis length as the early warning distances with the downhill road sections respectively.
And step S96, marking the two early warning distances as brake overheat reminding road sections and sending the brake overheat reminding road sections to the vehicle.
Further, after step S92, it includes:
step S921, calculating the ordinate dispersion of all the second coordinate points according to the formula (2):
wherein sigma 2 2 As ordinate dispersion, b i Mu for the ordinate of each second coordinate point 2 Is the average value of the ordinate of all the second coordinate points, n 2 The number of ordinate of all the second coordinate points.
Step S922, in mu 2 And (3) taking the value of (2) as a temperature early-warning ordinate, taking a zero value as a temperature early-warning abscissa, and generating a temperature early-warning coordinate in a second rectangular coordinate system.
In step S923, the value of the ordinate dispersion is taken as the longitudinal axis length of the second rectangular coordinate system, the midpoint of the longitudinal axis length coincides with the temperature early warning coordinates, and the values of the ordinate of the two endpoints of the longitudinal axis length are marked as the early warning temperature of the brake overheat reminding road section.
Step S924, sending the early warning temperature to the vehicle.
Further, after step S96, it includes:
step S961, acquiring the real-time position of the vehicle according to the position of each temperature detector on the downhill road, and determining whether the vehicle is located in the brake overheat reminding road, and executing step S962.
Step S962, determining the current speed of the vehicle according to the time interval of each temperature detector in the vehicle brake overheat reminding section.
Step S963, determine whether the current speed is increased compared to the previous current speed, if so, execute step S964.
Step S964, a deceleration reminding signal is generated and sent to the vehicle.
Further, after step S964, it includes:
in step S9641, a difference value of each current speed compared with the previous current speed is obtained.
In step S9642, it is determined whether each difference is increased compared to the previous difference, and if so, step S9643 is performed.
In step S9643, a hazard warning signal is generated and transmitted to the vehicle.
Step S9644, transmitting the lane position closest to the real-time position to the vehicle according to the real-time position.
Further, after step S9643, it includes:
and step S96431, a brake disc damage early warning signal and a danger early warning signal are sent to a server side.
According to the method, the brake disc temperatures of the vehicles with the preset number are obtained through the continuous preset number of temperature detectors at the starting end of the downhill road section along the advancing direction, a first right-angle coordinate system is generated by taking the preset distance as the horizontal axis and the temperature as the vertical axis, a plurality of first coordinate points are generated according to the horizontal coordinates of each preset distance and the vertical coordinates of each brake disc temperature, the slope of a curve generated by the first coordinate points is judged, the temperature change speed of the brake disc is reflected, when the temperature change speed of the brake disc exceeds a first preset threshold value, the fact that the temperature of the brake disc is too fast is indicated, the brake disc is deformed, a braking part is deformed, or a water spray cooling system stops working, and at the moment, a brake disc damage early warning signal is generated and sent to the vehicle, so that a driver can completely brake the vehicle and overhaul before the brake disc or the braking part is completely damaged. According to the embodiment, the temperature change speed of the brake disc is reflected through the slope of the curve, and a driver is timely notified before the brake disc reaches the damage temperature, so that notification is performed after the temperature of the brake disc reaches a higher temperature, and the brake disc at the moment is most likely to be damaged, so that the vehicle is out of control.
Fig. 2 illustrates an embodiment of a brake disc temperature detection device for a downhill path of the present application, and referring to fig. 2, the monitoring device includes a response and acquisition module, a first calculation module, a second calculation module, a third calculation module, a fourth calculation module, a judgment module, and a signal generation module.
The response and acquisition module is used for responding to the running operation of the vehicles based on entering the downhill road section, and acquiring the brake disc temperatures of the vehicles with preset numbers through the temperature detectors with the preset numbers continuously at the starting end of the downhill road section along the running direction; the first calculation module is used for generating a first right-angle coordinate system by taking a preset distance as a horizontal axis and taking temperature as a vertical axis; the second calculation module is used for generating a first coordinate point according to each preset distance as an abscissa and each brake disc temperature as an ordinate, and outputting each first coordinate point in a first right-angle coordinate system; the third calculation module is used for sequentially connecting each first coordinate point to form a curve; the fourth calculation module is used for acquiring the slope of the curve according to each preset distance; the judging module is used for judging whether the slope exceeds a first preset threshold value; the signal generation module is used for generating a brake disc damage early warning signal and sending the brake disc damage early warning signal to the vehicle if the slope exceeds a first preset threshold value.
Further, the brake disc temperature detection device for the downhill road section further comprises a judging and acquiring module, an acquiring and matching module and an early warning information sending module.
The judging and acquiring module is used for judging whether the slope exceeds a first preset threshold value, if not, judging whether the temperature of each brake disc exceeds a second preset threshold value, and if so, acquiring the temperature of the brake disc exceeding the second preset threshold value and marking the temperature as an early warning temperature; the acquisition and matching module is used for acquiring the distance between the temperature detector matched with the early warning temperature and the starting end of the downhill road section and taking the distance as the early warning distance; the early warning information sending module is used for sending the early warning temperature and the early warning distance to the vehicle.
Further, the brake disc temperature detection device for the downhill road section further comprises an early warning information acquisition module, a mathematical model generation module, a mathematical model output module, a formula calculation module, a coordinate generation module, a dispersion calculation module and a distance marking and sending module.
The early warning information acquisition module is used for acquiring early warning temperatures and early warning distances of a plurality of different vehicles.
The mathematical model generation module is used for generating a second rectangular coordinate system by taking a preset distance as a horizontal axis and taking temperature as a vertical axis; the mathematical model output module is used for generating a second coordinate point according to each early warning distance as an abscissa and each early warning temperature as an ordinate, and outputting each second coordinate point in a second rectangular coordinate system; the formula calculation module is used for calculating the abscissa dispersion of all the second coordinate points according to formula (1):
wherein sigma 1 2 A is the dispersion of the abscissa, a i Mu for the abscissa of each second coordinate point 1 Is the average value of the abscissa of all the second coordinate points, n 1 The number of the abscissas of all the second coordinate points; the coordinate generation module is used for generating mu 1 The value of (2) is taken as a distance early-warning abscissa, a zero value is taken as a distance early-warning ordinate, and a distance early-warning coordinate is generated in a second rectangular coordinate system; the dispersion calculating module is used for taking the value of the dispersion of the transverse coordinates as the transverse axis length of the second rectangular coordinate system, the midpoint of the transverse axis length coincides with the distance early-warning coordinates, and the values of the transverse coordinates of two endpoints of the transverse axis length are marked as the early-warning distances with the downhill road sections respectively; the distance marking and sending module is used for marking the two early warning distances as a brake overheat reminding road section and sending the brake overheat reminding road section to the vehicle.
Further, the formula calculation module is further configured to calculate ordinate dispersions of all the second coordinate points according to formula (2):
wherein sigma 2 2 As ordinate dispersion, b i Mu for the ordinate of each second coordinate point 2 Is the average value of the ordinate of all the second coordinate points, n 2 The number of the ordinate of all the second coordinate points; the coordinate generation module is also used for generating mu 2 The value of (2) is taken as a temperature early-warning ordinate, a zero value is taken as a temperature early-warning abscissa, and a temperature early-warning seat is generated in a second rectangular coordinate systemMarking; the dispersion calculation module is further used for taking the value of the ordinate dispersion as the longitudinal axis length of the second rectangular coordinate system, the midpoint of the longitudinal axis length coincides with the temperature early-warning coordinates, and the value of the ordinate of the two endpoints of the longitudinal axis length is marked as the early-warning temperature of the brake overheat reminding road section; the distance marking and transmitting module is also used for transmitting the early warning temperature to the vehicle.
Further, the brake disc temperature detection device for the downhill road section further comprises a road section judgment module, a speed acquisition module and a speed trend judgment module.
The road section judging module is used for acquiring the real-time position of the vehicle according to the position of each temperature detector on the downhill road section and judging whether the vehicle is positioned in the brake overheat reminding road section or not; the speed acquisition module is used for judging the current speed of the vehicle according to the time interval of each temperature detector in the vehicle brake overheat reminding road section; the speed trend judging module is used for judging whether the current speed is increased compared with the previous current speed, if so, generating a deceleration reminding signal and sending the deceleration reminding signal to the vehicle.
Further, the brake disc temperature detection device for the downhill road section further comprises a difference comparison module, a difference trend judgment module, a risk avoidance position sending module and a risk signal sending module.
The difference value comparison module is used for obtaining the difference value of each current speed compared with the previous current speed respectively; the difference trend judging module is used for judging whether each difference is increased compared with the previous difference, if so, generating a danger early warning signal and sending the danger early warning signal to the vehicle; the danger avoiding position sending module is used for sending the position of the danger avoiding lane closest to the real-time position to the vehicle according to the real-time position; the danger signal sending module is used for sending a brake disc damage early warning signal and a danger early warning signal to the server side.
Fig. 3 illustrates one embodiment of the electronic device of the present application, referring to fig. 3, the electronic device 6 includes a processor 61 and a memory 62 coupled to the processor 61.
The memory 62 stores program instructions for implementing the brake disc temperature detection method for the downhill path of any of the embodiments described above.
The processor 61 is configured to execute program instructions stored in the memory 62 for brake disc temperature detection on downhill road segments.
The processor 61 may also be referred to as a CPU (Centra l Process i ng Un i t ). The processor 61 may be an integrated circuit chip with signal processing capabilities. Processor 61 may also be a general purpose processor, a Digital Signal Processor (DSP), an application specific integrated circuit (AS ic), a Field Programmable Gate Array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
Further, fig. 4 is a schematic structural diagram of a storage medium according to an embodiment of the present application, referring to fig. 4, where the storage medium 7 according to an embodiment of the present application stores a program instruction 71 capable of implementing all the methods described above, where the program instruction 71 may be stored in the storage medium in the form of a software product, and includes several instructions for making a computer device (which may be a personal computer, a server, or a network device) or a processor (processor) execute all or part of the steps of the methods described in various embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, an optical disk, or other various media capable of storing program codes, or a terminal device such as a computer, a server, a mobile phone, a tablet, or the like.
In the several embodiments provided in the present application, it should be understood that the disclosed systems, apparatuses, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of elements is merely a logical functional division, and there may be additional divisions of actual implementation, e.g., multiple elements or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other forms.
In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units. The foregoing is only the embodiments of the present application, and is not intended to limit the scope of the patent application, and all equivalent structures or equivalent processes using the contents of the specification and drawings of the present application or directly or indirectly applied to other related technical fields are included in the scope of the patent protection of the present application.
The embodiments of the invention have been described in detail above, but they are merely examples, and the invention is not limited to the above-described embodiments. It will be apparent to those skilled in the art that any equivalent modifications or substitutions to this invention are within the scope of the invention, and therefore, all equivalent changes and modifications, improvements, etc. that do not depart from the spirit and scope of the principles of the invention are intended to be covered by this invention.
Claims (10)
1. The method for detecting the temperature of the brake disc on the downhill road section comprises at least two temperature detectors which are arranged on the road surface along the advancing direction at intervals of preset distance, and the detection port of each temperature detector faces to the brake disc of the vehicle, and is characterized in that the method for detecting the temperature of the brake disc comprises the following steps:
responding to the running operation of the vehicle based on entering a downhill road section, and acquiring the brake disc temperatures of the preset number of vehicles through the continuous preset number of temperature detectors at the starting end of the downhill road section along the running direction;
generating a first rectangular coordinate system by taking the preset distance as a horizontal axis and taking the temperature as a vertical axis;
generating a first coordinate point according to each preset distance as an abscissa and each brake disc temperature as an ordinate, and outputting each first coordinate point in the first right-angle coordinate system;
sequentially connecting each first coordinate point to form a curve;
acquiring the slope of the curve according to each preset distance;
judging whether the slope exceeds a first preset threshold value or not;
if yes, generating a brake disc damage early warning signal and sending the early warning signal to the vehicle.
2. The brake disc temperature detection method according to claim 1, wherein determining whether the slope is greater than a first preset threshold value, after which comprises:
if not, judging whether the temperature of each brake disc exceeds a second preset threshold value;
if yes, acquiring the temperature of the brake disc exceeding the second preset threshold value and marking the temperature as the early warning temperature;
acquiring the distance from the temperature detector matched with the early warning temperature to the starting end of the downhill road section and taking the distance as an early warning distance;
and sending the early warning temperature and the early warning distance to the vehicle.
3. The brake disc temperature detection method according to claim 2, wherein acquiring the brake disc temperature exceeding the second preset threshold value and marking as the pre-warning temperature, and thereafter, comprises:
acquiring early warning temperatures and early warning distances of a plurality of different vehicles;
generating a second rectangular coordinate system by taking the preset distance as a horizontal axis and the temperature as a vertical axis;
generating a second coordinate point according to the abscissa of each early warning distance and the ordinate of each early warning temperature, and outputting each second coordinate point in the second rectangular coordinate system;
calculating the abscissa dispersion of all the second coordinate points according to the formula (1):
wherein sigma 1 2 A is the dispersion of the abscissa, a i Mu for the abscissa of each second coordinate point 1 Is the average value of the abscissa of all the second coordinate points, n 1 The number of the abscissas of all the second coordinate points;
mu 1 The value of (2) is taken as a distance early-warning abscissa, a zero value is taken as a distance early-warning ordinate, and a distance early-warning coordinate is generated in the second rectangular coordinate system;
taking the value of the abscissa dispersion as the transverse axis length of the second rectangular coordinate system, enabling the midpoint of the transverse axis length to coincide with the distance early warning coordinates, and marking the values of the abscissas of the two endpoints of the transverse axis length as early warning distances with downhill road sections respectively;
and marking the two early warning distances as a brake overheat reminding road section and sending the brake overheat reminding road section to the vehicle.
4. A brake disc temperature detection method according to claim 3, wherein a second coordinate point is generated according to each early warning distance as an abscissa and each early warning temperature as an ordinate, and each second coordinate point is output in the second rectangular coordinate system, and then, the method comprises the steps of:
calculating the ordinate dispersion of all the second coordinate points according to the formula (2):
wherein sigma 2 2 As ordinate dispersion, b i Mu for the ordinate of each second coordinate point 2 Is the average value of the ordinate of all the second coordinate points, n 2 The number of the ordinate of all the second coordinate points;
mu 2 The value of (2) is taken as a temperature early-warning ordinate, a zero value is taken as a temperature early-warning abscissa, and a temperature early-warning coordinate is generated in the second rectangular coordinate system;
taking the value of the ordinate dispersion as the longitudinal axis length of the second rectangular coordinate system, enabling the midpoint of the longitudinal axis length to coincide with the temperature early warning coordinate, and marking the value of the ordinate of the two endpoints of the longitudinal axis length as the early warning temperature of the brake overheat reminding road section;
and sending the early warning temperature to the vehicle.
5. A brake disc temperature detection method according to claim 3, characterized in that two warning distances are marked as brake overheat reminder segments and sent to the vehicle, after which it comprises:
acquiring the real-time position of the vehicle according to the position of each temperature detector on a downhill road section, and judging whether the vehicle is positioned in the brake overheat reminding road section;
if yes, judging the current speed of the vehicle according to the time interval of each temperature detector in the brake overheat reminding road section of the vehicle;
judging whether the current speed is increased compared with the last current speed;
if yes, a deceleration reminding signal is generated and sent to the vehicle.
6. The brake disc temperature detection method according to claim 5, characterized by generating a deceleration alert signal and transmitting to the vehicle, and thereafter comprising:
obtaining the difference value of each current speed compared with the previous current speed respectively;
judging whether each difference value is increased compared with the last difference value;
if yes, generating a danger early warning signal and sending the danger early warning signal to the vehicle;
and sending the position of the lane closest to the real-time position to the vehicle according to the real-time position.
7. The brake disc temperature detection method according to claim 6, characterized by generating a hazard warning signal and transmitting to the vehicle, and thereafter comprising:
and sending the brake disc damage early warning signal and the danger early warning signal to a server side.
8. Brake disc temperature detection device in downhill path section, characterized in that, monitoring devices includes:
the response and acquisition module is used for responding to the running operation of the vehicle based on entering a downhill road section, and acquiring the brake disc temperatures of the preset number of vehicles through the continuous preset number of temperature detectors at the starting end of the downhill road section along the running direction;
the first calculation module is used for generating a first right-angle coordinate system by taking the preset distance as a horizontal axis and taking the temperature as a vertical axis;
the second calculation module is used for generating a first coordinate point according to each preset distance as an abscissa and each brake disc temperature as an ordinate, and outputting each first coordinate point in the first right-angle coordinate system;
the third calculation module is used for sequentially connecting each first coordinate point to form a curve;
a fourth calculation module, configured to obtain a slope of the curve according to each preset distance;
the judging module is used for judging whether the slope exceeds a first preset threshold value or not;
and the signal generation module is used for generating a brake disc damage early warning signal and sending the brake disc damage early warning signal to the vehicle if the slope exceeds a first preset threshold value.
9. An electronic device comprising a processor, and a memory coupled to the processor, the memory storing program instructions executable by the processor; the processor, when executing the program instructions stored in the memory, implements the method for detecting brake disc temperature on a downhill road segment according to any one of claims 1 to 7.
10. A storage medium having stored therein program instructions which, when executed by a processor, implement a brake disc temperature detection method capable of implementing a downhill path as claimed in any one of claims 1 to 7.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310113525.5A CN116164861A (en) | 2023-02-14 | 2023-02-14 | Method, device, equipment and storage medium for detecting temperature of brake disc on downhill road section |
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| CN202310113525.5A CN116164861A (en) | 2023-02-14 | 2023-02-14 | Method, device, equipment and storage medium for detecting temperature of brake disc on downhill road section |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116392369A (en) * | 2023-06-08 | 2023-07-07 | 中国电建集团昆明勘测设计研究院有限公司 | Identification induction method, device, equipment and storage medium based on blind sidewalk |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116392369A (en) * | 2023-06-08 | 2023-07-07 | 中国电建集团昆明勘测设计研究院有限公司 | Identification induction method, device, equipment and storage medium based on blind sidewalk |
| CN116392369B (en) * | 2023-06-08 | 2023-09-08 | 中国电建集团昆明勘测设计研究院有限公司 | Identification induction method, device, equipment and storage medium based on blind sidewalk |
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