CN111169378B - Vehicle overload detection method, system and device - Google Patents
Vehicle overload detection method, system and device Download PDFInfo
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- CN111169378B CN111169378B CN202010074486.9A CN202010074486A CN111169378B CN 111169378 B CN111169378 B CN 111169378B CN 202010074486 A CN202010074486 A CN 202010074486A CN 111169378 B CN111169378 B CN 111169378B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q9/00—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
- B60C23/02—Signalling devices actuated by tyre pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
- B60J5/00—Doors
- B60J5/04—Doors arranged at the vehicle sides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
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Abstract
The invention provides a vehicle overload detection method, which comprises the following steps: the vehicle door state detection module acquires vehicle door state information and sends the vehicle door state information to the central control module; the central control module judges the state of the vehicle door and sends corresponding information to the tire pressure detection module; the tire pressure detection module acquires tire pressure information of a tire in the process from opening to closing of a vehicle door and sends the tire pressure information to the central control module; the central control module calculates a first load variation and a second load variation, compares the second load variation with a preset load increase threshold, and controls the alarm module to give an alarm when the second load variation is greater than or equal to the load increase threshold; the invention also provides a system and a device; the invention judges whether the vehicle has overload behavior according to the vehicle load change information; and when the existence of overload behavior is detected and the driver and passengers do not effectively process overload within the specified time limit, the vehicle is prohibited from starting, overload driving can be stopped from the source, and the driving safety is improved.
Description
Technical Field
The invention relates to the technical field of automobile safety, in particular to a method, a system and a device for detecting vehicle overload.
Background
With the continuous improvement of the living standard and the road traffic state of people, the demand and the holding amount of automobiles are also continuously increased, the automobiles become important walk-substituting tools for people, and the attention of people to traffic safety is raised more and more.
The overload of the automobile is one of the main reasons of traffic safety accidents at the present stage. Vehicle overload is still rare, and the reasons are mainly: passenger and truck drivers intentionally violate manned freight transportation for pursuing the maximization of profit; overload caused by wrong load estimation by a driver, and the like. In the prior art, the detection method for determining whether the freight car is overloaded generally is the passing of the wagon balance, and the passing of the wagon balance can be detected only when the wagon balance arrives at a specified place, so that the real-time performance is poor and the efficiency is low; the passenger car overload detection method only can count the number of people, and also has the defects of poor real-time performance and low efficiency.
In order to overcome the defects in the prior art, the application aims to provide the vehicle overload detection method, the vehicle overload detection system and the vehicle overload detection device, the real-time detection of the vehicle load can be realized, the vehicle overload phenomenon is detected, a prompt is sent to a driver and a crew, meanwhile, additional devices and equipment are not required to be added, and the research, development and production cost is reduced.
Disclosure of Invention
In view of the above problems in the prior art, an object of the present invention is to provide a method, a system and a device for detecting vehicle overload.
In order to solve the above problems, the present invention provides a vehicle overload detection method, which is used in a vehicle overload detection system, the system including a central control module, a tire pressure detection module, a door state detection module and an alarm module, the method including:
the vehicle door state detection module acquires vehicle door state information and sends the vehicle door state information to the central control module;
when the central control module judges that the vehicle door state is open according to the vehicle door state information, sending awakening information to the tire pressure detection module, and triggering the tire pressure detection module to start;
when the central control module judges that the vehicle door state is closed according to the vehicle door state information, the central control module sends work stopping information to the tire pressure detection module and triggers the tire pressure detection module to sleep;
the tire pressure detection module acquires tire pressure information of a tire in the process from the opening of a vehicle door to the closing of the vehicle door and sends the tire pressure information to the central control module;
the central control module calculates a first load variation of the vehicle according to the tire pressure information, calculates a second load variation of the vehicle according to the first load variation and the stored historical load increase information, compares the second load variation with a preset load increase threshold, and controls the alarm module to give an alarm when the second load variation is greater than or equal to the load increase threshold.
Further, the method further comprises:
and when the second load variation is smaller than the load increase threshold, replacing the historical load increase information with the second load variation.
Specifically, the vehicle overload detection system further includes a vehicle start control module, and when the second load variation is greater than or equal to the load increase threshold, the vehicle overload detection system further controls the alarm module to send an alarm, and then further includes:
acquiring continuous duration time during which the second load variation amount is greater than or equal to the load increase threshold;
and when the continuous duration is greater than a preset time threshold, the central control module sends start prohibition information to the vehicle start control module.
Specifically, the tire pressure detection module acquires tire pressure information of a tire during a process of opening a vehicle door to close the vehicle door, and transmits the tire pressure information to the central control module, and the tire pressure detection module includes:
the tire pressure detection module acquires first tire pressure information of a tire when a vehicle door is opened and second tire pressure information of the tire when the vehicle door is closed, and sends the first tire pressure information and the second tire pressure information to the central control module.
Preferably, the method further comprises:
the tire pressure detection module acquires third tire pressure information of the tire once every other preset time interval in the process from the opening of the vehicle door to the closing of the vehicle door, and sends the third tire pressure information to the central control module.
Preferably, the method further comprises:
the central control module calculates and obtains a third load variation of the vehicle corresponding to the two adjacent acquisition actions according to the first tire pressure information, the second tire pressure information and the third tire pressure information;
comparing the third load variation amount with the load increase threshold;
and when the third load variation is larger than or equal to the load increase threshold, the central control module controls the alarm module to give an alarm.
The invention also provides a vehicle overload detection method, which comprises the following steps:
acquiring vehicle door state information;
when the vehicle door state is judged to be open according to the vehicle door state information, sending awakening information to the tire pressure detection module, and triggering the tire pressure detection module to start;
when the vehicle door state is judged to be closed according to the vehicle door state information, sending work stopping information to the tire pressure detection module, and triggering the tire pressure detection module to be dormant;
acquiring tire pressure information of a tire in the process from the opening of a vehicle door to the closing of the vehicle door through the tire pressure detection module;
and calculating a first load variation of the vehicle according to the tire pressure information, calculating a second load variation of the vehicle according to the first load variation and stored historical load increase information, comparing the second load variation with a preset load increase threshold, and controlling the alarm module to give an alarm when the second load variation is greater than or equal to the load increase threshold.
In another aspect of the present invention, a vehicle overload detection system is provided, including: the system comprises a central control module, a tire pressure detection module, a vehicle door state detection module and an alarm module;
the tire pressure detection module, the vehicle door state detection module and the alarm module are in communication connection with the central control module;
the vehicle door state detection module is used for acquiring vehicle door state information and sending the vehicle door state information to the central control module;
the central control module is used for sending awakening information to the tire pressure detection module and triggering the tire pressure detection module to start when the vehicle door state is judged to be open according to the vehicle door state information;
the central control module is also used for sending work stopping information to the tire pressure detecting module and triggering the tire pressure detecting module to sleep when the vehicle door state is judged to be closed according to the vehicle door state information;
the tire pressure detection module is used for acquiring tire pressure information of a tire in the process from the opening of a vehicle door to the closing of the vehicle door and sending the tire pressure information to the central control module;
the central control module is also used for calculating a first load variation of the vehicle according to the tire pressure information, calculating a second load variation of the vehicle according to the first load variation and stored historical load increase information, and comparing the second load variation with a preset load increase threshold;
and the alarm module is used for giving an alarm when the central control module judges that the second load variation is larger than or equal to the load increase threshold.
Preferably, the system further comprises a vehicle launch control module:
the vehicle starting control module is in communication connection with the central control module, and the central control module is further used for sending starting prohibition information to the vehicle starting control module when the continuous duration time is judged to be larger than a preset time threshold value.
Another aspect of the present invention provides a vehicle overload detection apparatus, including:
the first acquisition module is used for acquiring the state information of the vehicle door;
the awakening information sending module is used for sending awakening information to the tire pressure detection module and triggering the tire pressure detection module to start when the vehicle door state is judged to be opened according to the vehicle door state information;
the work stopping information sending module is used for sending work stopping information to the tire pressure detecting module and triggering the tire pressure detecting module to be dormant when the vehicle door state is judged to be closed according to the vehicle door state information;
the second acquisition module is used for acquiring the tire pressure information of the tire in the process from the opening of the vehicle door to the closing of the vehicle door through the tire pressure detection module;
the first calculation module is used for calculating a first load variation of the vehicle according to the tire pressure information;
the second calculation module is used for calculating a second load variation of the vehicle according to the first load variation and the stored historical load increase information;
the comparison module is used for comparing the second load variation with a preset load increase threshold;
and the control module is used for controlling the alarm module to give an alarm when the second load variation is larger than or equal to the load increase threshold.
Due to the technical scheme, the invention has the following beneficial effects:
1) according to the vehicle overload detection method provided by the invention, the tire pressure detection module acquires the tire pressure information only when the vehicle door is in the open state, so that the tire pressure detection module is prevented from working for a long time, the working power consumption is increased, and the service life of the tire pressure detection module is prolonged.
2) According to the vehicle overload detection method provided by the invention, when the vehicle is detected to have overload behavior and a driver and a passenger do not effectively process the overload within the specified time limit, the method can forcibly control the vehicle to start the control module and prohibit the vehicle from running, so that the overload driving behavior can be stopped from the source, and the running safety is improved.
3) The method is simple and effective, no additional hardware facility equipment is added, the development cost is low, and meanwhile, the popularization difficulty is low, and the popularization is easy.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description of the embodiment or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 is a flowchart of a vehicle overload detection method according to an embodiment of the present invention;
FIG. 2 is a flow chart of a vehicle overload detection method according to another embodiment of the present invention;
FIG. 3 is a flow chart of a vehicle overload detection method according to another embodiment of the invention;
FIG. 4 is a schematic structural diagram of a vehicle overload detection system according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a vehicle overload detection device according to an embodiment of the present invention.
In the figure: 10-a central control module, 11-a first information receiving unit, 12-a first information sending unit, 13-a storage unit, 20-a tire pressure detecting module, 21-a tire pressure sensor, 22-a second information receiving unit, 23-a second information sending unit, 30-a vehicle door state detecting module, 31-a vehicle door switch sensor, 32-a third information sending unit, 40-an alarm module and 50-a vehicle starting control module.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.
Example 1
Referring to fig. 1, the present embodiment provides a vehicle overload detection method, which is used in a vehicle overload detection system, where the system includes a central controller, a tire pressure detection module, a door status detection module, and an alarm module, and the method includes:
s110: the vehicle door state detection module acquires vehicle door state information and sends the vehicle door state information to the central control module; in the embodiments of the present disclosure, the door state detection module is connected to a vehicle door, and the door state detection module may be multiple and can detect opening and closing states of each door (including a cockpit door, a passenger seat door, a left passenger seat door, a right passenger seat door, and a trunk door) of the vehicle.
S120: the central control module judges the state of the vehicle door according to the vehicle door state information and sends corresponding control information to the tire pressure detection module;
s121: when the central control module judges that the vehicle door state is open according to the vehicle door state information, sending awakening information to the tire pressure detection module, and triggering the tire pressure detection module to start;
in the embodiment of the present specification, the tire pressure detecting module is connected to the vehicle tires, and the tire pressure detecting module may be provided with a plurality of tire pressures so as to be able to detect each tire of the vehicle, specifically, the number of the tire pressures may correspond to the number of the vehicle tires one to one, or may be more than the number of the vehicle tires.
S122: when the central control module judges that the vehicle door state is closed according to the vehicle door state information, the central control module sends work stopping information to the tire pressure detection module and triggers the tire pressure detection module to sleep;
s130: the tire pressure detection module acquires tire pressure information of a tire in the process from the opening of a vehicle door to the closing of the vehicle door and sends the tire pressure information to the central control module;
it should be noted that, with the vehicle overload detection method provided in the embodiments of the present disclosure, only when the vehicle door is opened, the driver can get in and out of the vehicle, and the luggage can be put into the trunk or the seat without passenger, resulting in a change of the vehicle load; therefore, the tire pressure detection module can be started to work only when the vehicle door is detected to be in an open state, so that the power consumption of the tire pressure detection module can be reduced, and the service life of the tire pressure detection module can be prolonged.
The tire pressure information comprises first tire pressure information and second tire pressure information; the first tire pressure information is the tire pressure information of the tire detected by the tire pressure detection module when the state of the vehicle door is detected to be changed from closed to open, and the second tire pressure information is the tire pressure information detected by the tire pressure detection module when the state of the vehicle door is detected to be changed from open to closed;
s140: the central control module calculates a first load variation of the vehicle according to the tire pressure information; in an embodiment of this specification, the central control module calculates the first load variation according to the first tire pressure information and the second tire pressure information, and records the first load variation as mi.
In the process of opening and closing the vehicle door once, a user may put articles in or take articles out for multiple times or passengers have actions of getting in and out of a carriage for multiple times, so that the overall change of the vehicle tire pressure in the process of opening and closing the vehicle door once can be obtained through the first tire pressure information and the second tire pressure information, and then the change of the vehicle load weight, namely the first load variation, is converted according to the change of the tire pressure.
The central control module calculates a second load variation of the vehicle according to the first load variation and the stored historical load increase information; recording the historical load increase information as Mi-1, and recording the second load variation as Mi, wherein Mi is Mi-1+ Mi;
the vehicle may experience a plurality of door opening and closing operations before the first load variation amount by the current door opening and closing operation, and may be accompanied by a history load variation. Therefore, if the vehicle load is measured to exceed the load increase threshold value only according to the first load variation, an erroneous determination may still be made. For example: the first load variation Mi corresponding to the current single door opening and closing action does not cause overweight of the load, but the accumulated increased weight exceeds the load limit due to the existence of historical vehicle opening and closing actions and the sum of the historical load increase information Mi-1 corresponding to the historical door opening and closing actions and the first load variation. Therefore, the second load variation is calculated according to the first load variation and the stored historical load increase information;
the central control module compares the second load variation with a preset load increase threshold; recording the load increase threshold value as M;
when the second load variation is greater than or equal to the load increase threshold, the central control module controls
The alarm module gives an alarm;
when Mi is larger than or equal to M, the vehicle sends an overload alarm to remind a driver and passengers of handling in time.
In this specification, the method further includes: when the second load variation is smaller than the load increase threshold, replacing the historical load increase information with the second load variation;
when Mi is less than M, the vehicle load does not exceed the load increase threshold value, and the vehicle can still be put in articles or people, at the moment, the second load variation is stored in a storage unit as new historical load increase information, and the new second load variation is calculated when waiting for the next door opening and closing action to wake up the tire pressure detection module to acquire the tire pressure information.
In an embodiment of the present specification, the vehicle overload detection system further includes a vehicle start control module, and the method includes: when the second load variation is greater than or equal to the load increase threshold, after the alarm module is controlled to give an alarm, the method further comprises the following steps:
s150: acquiring continuous duration of the second load variation amount which is greater than or equal to the load increase threshold; since the continuous duration is obtained after one door opening and closing operation is completed, it can be known whether the driver or the passenger is handling overload in time or not or whether the driver or the passenger has an incentive to run overload (in this specification, the default is that the vehicle is not started when the vehicle door is in an open state) within a period of time after the second load variation is greater than or equal to the load increase threshold.
S151: when the continuous duration is greater than a preset time threshold, the central control module sends start prohibition information to the vehicle start control module; therefore, when the condition that the overload behavior is not processed within the preset time threshold value of the driver and the passenger is obtained, the vehicle is forcibly controlled to start the control module, so that the vehicle cannot be started; and the vehicle can be restarted after the overload alarm of the vehicle is released, so that the overload driving behavior can be fundamentally stopped, and the driving safety is improved.
The embodiment of the specification provides a vehicle overload detection method based on vehicle Polling (unlocking when the vehicle leaves the lock and walks in) functions with high popularization rate in the current market, and the method can acquire the load change of the vehicle when the vehicle door is in an open state, and can be superposed with the historical load change to judge whether the vehicle has overload behavior, so that the overload judgment is more accurate.
According to the method, the tire pressure information is acquired only when the vehicle door is in the open state according to the tire pressure detection module, so that the tire pressure detection module is prevented from working for a long time, the working power consumption is increased, and the service life of the tire pressure detection module is prolonged.
According to the method, the tire pressure information of the tire obtained by the tire pressure detection module is converted into the load change information, and whether the vehicle has overload behavior is judged according to the load change information, so that the method is simple and effective, no additional hardware facility equipment is added, the development cost is low, and the popularization difficulty is low, so that the popularization is easy.
When the overload behavior of the vehicle is detected and the driver and the crew do not effectively deal with the overload within the specified time limit, the method can forcibly control the vehicle to start the control module, prohibit the vehicle from running, eliminate the overload driving behavior from the source and improve the running safety.
Example 2
As shown in fig. 2, the present embodiment provides a vehicle overload detection method, which is different from embodiment 1 in that, in step S130': the tire pressure detection module acquires tire pressure information of a tire in the process from the opening of a vehicle door to the closing of the vehicle door and sends the tire pressure information to the central control module, wherein the tire pressure information also comprises third tire pressure information; the third tire pressure information is the tire pressure information obtained by the tire pressure detection module every other preset time interval from the moment when the vehicle door opens the tire pressure detection module to enter the working mode in the process from the beginning of opening the vehicle door to the closing of the vehicle door; the preset time interval can be determined according to specific function calibration so as to realize that the tire pressure change can be monitored in real time, and the third tire pressure information is obtained until the tire pressure detection module exits the working mode.
The central control module acquires not only the first load variation amount, S140': the central control module calculates and obtains a third load variation of the vehicle corresponding to the two adjacent acquisition actions according to the first tire pressure information, the second tire pressure information and the third tire pressure information;
namely, the central control module further calculates the vehicle load change in the two adjacent tire pressure acquisition actions in the first tire pressure information acquisition action, the third tire pressure information acquisition action and the second tire pressure information acquisition action.
The first tire pressure information is recorded as p1, the second tire pressure information is recorded as pn, and the third tire pressure information is acquired for a plurality of times between the first tire pressure information and the second tire pressure information and is respectively p2 pn-1 and p3 … … pn-1 in time sequence;
and the central control module obtains the third load variation corresponding to each preset time interval according to the first tire pressure information, the second tire pressure information and the third tire pressure information, and records that the third load variation is delta mi. Specifically, the third load variation amount corresponding to the tire pressure information p2 and the first tire pressure information p1 is Δ m1, the third load variation amount corresponding to the tire pressure information p3 and the tire pressure information p2 is Δ m2 … …, and the third load variation amount corresponding to the tire pressure information pn-1 and the tire pressure information pn is Δ mn-1;
s141': comparing the third load variation amount with the load increase threshold M;
s142': when the third load variation is larger than or equal to the load increase threshold, the central control module controls the alarm module to give an alarm;
when the delta mi is larger than or equal to M, the alarm module is controlled to give an alarm to remind a driver and passengers to process overload in time.
And when the third load variation is smaller than the load increase threshold, comparing the second load variation with a preset load increase threshold.
In this specification, the sum of the third load variation amounts obtained in one door opening and closing phase is equal to the first load variation amount, that is, the sum of the third load variation amounts obtained in one door opening and closing phase is equal to the first load variation amount
In the whole process from opening to closing of the vehicle door, a user may put articles in or take articles out for multiple times or passengers have multiple actions of entering and exiting a carriage, so that the tire pressure detection module obtains the tire pressure information once at intervals, and the central control module calculates and obtains the change of the vehicle load corresponding to the time intervals, namely the third load variation; by comparing the third load variation with the load increase threshold, the user can be informed in time when the vehicle is increased with the load variation exceeding the limit within a time interval, instead of giving an overload alarm after the door closing loading stage is completed, so that the timeliness of the overload alarm is improved.
In addition, the central control module can calculate and obtain a fourth load variation according to the third load variation and the historical load increase information;
and comparing the fourth load variation with a load increase threshold, and controlling the alarm module to give an alarm when the fourth load variation is greater than or equal to the load increase threshold.
The number of the fourth load variation corresponds to the number of times of the third tire pressure information obtaining action, whether the vehicle is overloaded or not is judged according to the comparison result of the total vehicle load variation occurring at intervals and the load increase threshold, the overload behavior can be found in time, the user is reminded that no object is put in or no passenger enters the carriage, the overload amount is prevented from being further increased, and the user can conveniently solve the overload.
Example 3
As shown in fig. 3, the present embodiment provides a vehicle overload detection method, which is applied to a central control module, and includes:
s210: acquiring vehicle door state information;
s220: judging the state of the vehicle door according to the vehicle door state information and sending corresponding control information to a tire pressure detection module;
s221: when the vehicle door state is judged to be open according to the vehicle door state information, sending awakening information to the tire pressure detection module, and triggering the tire pressure detection module to start;
s222: when the vehicle door state is judged to be closed according to the vehicle door state information, sending work stopping information to the tire pressure detection module, and triggering the tire pressure detection module to be dormant;
s230: acquiring tire pressure information of a tire in the process from the opening of a vehicle door to the closing of the vehicle door through the tire pressure detection module;
s240: and calculating a first load variation of the vehicle according to the tire pressure information, calculating a second load variation of the vehicle according to the first load variation and stored historical load increase information, comparing the second load variation with a preset load increase threshold, and controlling the alarm module to give an alarm when the second load variation is greater than or equal to the load increase threshold.
Example 4
As shown in fig. 4, an embodiment of the present disclosure provides a vehicle overload detection system, including: the system comprises a central control module 10, a tire pressure detection module 20, a vehicle door state detection module 30 and an alarm module 40;
the tire pressure detection module 20, the vehicle door state detection module 30 and the alarm module 40 are all in communication connection with the central control module 10;
the vehicle door state detection module 30 is configured to obtain vehicle door state information and send the vehicle door state information to the central control module 10;
the central control module 10 is configured to determine a vehicle door state according to the vehicle door state information, and send corresponding control information to the tire pressure detecting module 20 according to the vehicle door state information; specifically, when the vehicle door state is judged to be open according to the vehicle door state information, sending a wake-up message to the tire pressure detecting module 20, and triggering the tire pressure detecting module 20 to start;
when the vehicle door state is judged to be closed according to the vehicle door state information, sending work stopping information to the tire pressure detecting module 20, and triggering the tire pressure detecting module 20 to sleep;
the tire pressure detection module 20 is configured to acquire tire pressure information of a tire during a process from a vehicle door opening to a vehicle door closing, and send the tire pressure information to the central control module 10;
the central control module 10 is configured to calculate a first load variation of the vehicle according to the tire pressure information, calculate a second load variation of the vehicle according to the first load variation and stored historical load increase information, and compare the second load variation with a preset load increase threshold;
the alarm module 40 is configured to send an alarm when the central control module 10 determines that the second load variation is greater than or equal to the load increase threshold.
The vehicle overload detection system further includes a vehicle start control module 50, the vehicle start control module 50 is in communication connection with the central control module 10, and the central control module 10 is further configured to obtain a continuous duration that the second load variation is greater than or equal to the load increase threshold, and when it is determined that the continuous duration is greater than a preset time threshold, send start prohibition information to the vehicle start control module 50, so as to prohibit vehicle start. The vehicle launch control module 50 can be used to detect vehicle launch status information.
The central control module 10 includes a first information receiving unit 11 and a first information transmitting unit 12, where the first information receiving unit 11 is configured to receive the tire pressure information sent by the tire pressure detecting module 20 and the vehicle door state information sent by the vehicle door state detecting module 30, the first information transmitting unit 12 is configured to send the wakeup information or the stop operation information to the tire pressure detecting module 20, and the first information transmitting unit 12 is further configured to send the start prohibition information to the vehicle start control module 50.
The tire pressure detecting module 20 is provided with a tire pressure sensor 21, a second information receiving unit 22 and a second information transmitting unit 23, the tire pressure sensor 21 is configured to acquire tire pressure information of a vehicle tire, the second information receiving unit 22 is configured to receive wakeup information or stop work information sent by the central control module 10, and the second information transmitting unit 23 is configured to send the tire pressure information acquired by the tire pressure sensor 21 to the central control module 10;
the door state detection module 30 includes a door switch sensor 31 and a third information transmitting unit 32; the door switch sensor 31 is configured to acquire door state information of a vehicle, and the third information transmitting unit 32 is configured to transmit the door state information to the central control module 10.
Alternatively, the first information receiving unit 11 and the second information receiving unit 22 may be low frequency receiving antennas, and the first information sending module 12, the second information sending unit 23, and the third information sending unit 32 may be radio frequency transmitting antennas.
The central control unit 10 is further provided with a storage unit 13, and the storage unit 13 is used for storing the historical load increase information.
Claims (5)
1. A vehicle overload detection method is characterized in that the method is used for a vehicle overload detection system, the system comprises a central control module, a tire pressure detection module, a vehicle door state detection module and an alarm module, and the method comprises the following steps:
the vehicle door state detection module acquires vehicle door state information and sends the vehicle door state information to the central control module;
when the central control module judges that the vehicle door state is open according to the vehicle door state information, sending awakening information to the tire pressure detection module, and triggering the tire pressure detection module to start;
when the central control module judges that the vehicle door state is closed according to the vehicle door state information, the central control module sends the vehicle door state information to the tire pressure detection module to trigger the tire pressure detection module to be dormant;
the tire pressure detection module acquires first tire pressure information of a tire when a vehicle door is opened and second tire pressure information of the tire when the vehicle door is closed, and sends the first tire pressure information and the second tire pressure information to the central control module;
the central control module calculates a first load variation of the vehicle according to the first tire pressure information and the second tire pressure information, calculates a second load variation of the vehicle according to the first load variation and stored historical load increase information, and compares the second load variation with a preset load increase threshold;
when the second load variation is larger than or equal to the load increase threshold, controlling the alarm module to give an alarm;
when the second load variation is smaller than the load increase threshold, replacing the historical load increase information with the second load variation;
the tire pressure detection module acquires third tire pressure information of the tire once every other preset time interval in the process from the opening of the vehicle door to the closing of the vehicle door and sends the third tire pressure information to the central control module;
the central control module calculates and obtains a third load variation of the vehicle corresponding to the two adjacent acquisition actions according to the first tire pressure information, the second tire pressure information and the third tire pressure information;
comparing the third load variation amount with the load increase threshold;
and when the third load variation is larger than or equal to the load increase threshold, the central control module controls the alarm module to give an alarm.
2. The vehicle overload detection method according to claim 1, wherein the vehicle overload detection system further comprises a vehicle start control module, and the method further comprises, after controlling an alarm module to give an alarm when the second load variation is greater than or equal to the load increase threshold, the method further comprising:
acquiring continuous duration of the second load variation amount which is greater than or equal to the load increase threshold;
and when the continuous duration is greater than a preset time threshold, the central control module sends start prohibition information to the vehicle start control module.
3. A vehicle overload detection method, comprising:
acquiring vehicle door state information;
when the vehicle door state is judged to be open according to the vehicle door state information, sending awakening information to a tire pressure detection module, and triggering the tire pressure detection module to start;
when the vehicle door state is judged to be closed according to the vehicle door state information, work stopping information is sent to the tire pressure detection module, and the tire pressure detection module is triggered to sleep;
acquiring first tire pressure information of a tire when a vehicle door is opened and second tire pressure information of the tire when the vehicle door is closed by the tire pressure detection module;
calculating a first load variation of the vehicle according to the first tire pressure information and the second tire pressure information, calculating a second load variation of the vehicle according to the first load variation and stored historical load increase information, and comparing the second load variation with a preset load increase threshold;
when the second load variation is larger than or equal to the load increase threshold, controlling an alarm module to give an alarm;
when the second load variation amount is smaller than the load increase threshold, replacing the historical load increase information with the second load variation amount;
acquiring third tire pressure information of the tire every other preset time interval in the process from the opening of the vehicle door to the closing of the vehicle door;
calculating to obtain a third load variation of the vehicle corresponding to the two adjacent acquiring actions according to the first tire pressure information, the second tire pressure information and the third tire pressure information;
comparing the third load variation amount with the load increase threshold;
and when the third load variation is larger than or equal to the load increase threshold, controlling the alarm module to give an alarm.
4. A vehicle overload detection system, comprising: the system comprises a central control module, a tire pressure detection module, a vehicle door state detection module and an alarm module;
the tire pressure detection module, the vehicle door state detection module and the alarm module are in communication connection with the central control module;
the vehicle door state detection module is used for acquiring vehicle door state information and sending the vehicle door state information to the central control module;
the central control module is used for sending awakening information to the tire pressure detection module and triggering the tire pressure detection module to start when the vehicle door state is judged to be open according to the vehicle door state information;
the central control module is also used for sending work stopping information to the tire pressure detection module and triggering the tire pressure detection module to be dormant when the vehicle door state is judged to be closed according to the vehicle door state information;
the tire pressure detection module is used for acquiring first tire pressure information of a tire when a vehicle door is opened and second tire pressure information of the tire when the vehicle door is closed by the tire pressure detection module, and sending the first tire pressure information and the second tire pressure information to the central control module;
the central control module is further used for calculating a first load variation of the vehicle according to the first tire pressure information and the second tire pressure information, calculating a second load variation of the vehicle according to the first load variation and stored historical load increase information, comparing the second load variation with a preset load increase threshold, and replacing the historical load increase information with the second load variation when the second load variation is smaller than the load increase threshold;
the alarm module is used for giving an alarm when the central control module judges that the second load variation is larger than or equal to the load increase threshold;
the tire pressure detection module is also used for acquiring third tire pressure information of the tire once every other preset time interval in the process from the opening of the vehicle door to the closing of the vehicle door and sending the third tire pressure information to the central control module;
the central control module is further used for calculating and obtaining a third load variation of the vehicle corresponding to the two adjacent acquisition actions according to the first tire pressure information, the second tire pressure information and the third tire pressure information, comparing the third load variation with the load increase threshold value, and controlling the alarm module to give an alarm when the third load variation is larger than or equal to the load increase threshold value.
5. The vehicle overload detection system of claim 4, further comprising a vehicle launch control module that:
the vehicle starting control module is in communication connection with the central control module, and the central control module is further configured to acquire a continuous duration of the second load variation amount being greater than or equal to the load increase threshold, and send start prohibition information to the vehicle starting control module when the continuous duration is judged to be greater than a preset time threshold.
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| CN113358197A (en) * | 2021-07-07 | 2021-09-07 | 上海中通吉网络技术有限公司 | Method and system for detecting weight of goods based on vehicle tire pressure |
| CN113602046A (en) * | 2021-08-27 | 2021-11-05 | 东风汽车有限公司东风日产乘用车公司 | Vehicle tire pressure checking method, electronic equipment, server and storage medium |
| CN114323230A (en) * | 2021-12-10 | 2022-04-12 | 武汉小安科技有限公司 | Sharing electric bicycle overload detection method and device and sharing electric bicycle |
| CN114104161A (en) * | 2021-12-29 | 2022-03-01 | 海固科技(苏州)有限公司 | Gravity detection system, method, device and medium |
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| CN115465393B (en) * | 2022-08-23 | 2024-01-30 | 宁波美喵科技有限公司 | Overload protection method, device and equipment for shared electric vehicle and storage medium |
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