CN110871844A - Vehicle alarm method, vehicle alarm device and computer readable storage medium - Google Patents
Vehicle alarm method, vehicle alarm device and computer readable storage medium Download PDFInfo
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- CN110871844A CN110871844A CN201911191535.0A CN201911191535A CN110871844A CN 110871844 A CN110871844 A CN 110871844A CN 201911191535 A CN201911191535 A CN 201911191535A CN 110871844 A CN110871844 A CN 110871844A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D15/00—Steering not otherwise provided for
- B62D15/02—Steering position indicators ; Steering position determination; Steering aids
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Abstract
The invention discloses a vehicle alarm method, a vehicle alarm device and a computer readable storage medium. According to the vehicle alarm method provided by the embodiment of the invention, under the condition that the turn light switch is invalid or closed, the vehicle can still be alarmed for turning, the alarm accuracy and timeliness are improved, and the problem that the existing turn alarm can send turn alarm information without depending on a driver to turn on a corresponding turn light or a reminding device when the vehicle turns is solved.
Description
Technical Field
The present invention relates to the field of vehicle control technologies, and in particular, to a vehicle alarm method, a vehicle alarm device, and a computer-readable storage medium.
Background
The commercial vehicle turn alarm is an important device relating to vehicle driving safety, and transmits vehicle driving state information in an audible form to inform a person outside the vehicle of the vehicle's driving intention. When the vehicle turns left and right and reverses, the turn alarm can send out buzzing alarm of 'dripping, dripping and dripping' or play voice alarm of 'left turning, please pay attention to', 'right turning, please pay attention to' and 'reverse and please pay attention to', the personnel outside the vehicle can be warned at the first time, so that the personnel outside the vehicle can obtain the driving intention of the vehicle and avoid the vehicle in time, the safety of the personnel outside the vehicle is improved, and the accident rate of the personnel outside the vehicle is reduced. However, when the vehicle turns, the conventional turning alarm needs the driver to turn on the corresponding steering lamp, and cannot give an alarm along with the turning of the vehicle, so that the alarm is inaccurate.
Disclosure of Invention
The invention mainly aims to provide a vehicle alarming method, a vehicle alarming device and a computer readable storage medium, and aims to solve the technical problem that the existing turning alarm needs a driver to turn on a corresponding steering lamp when a vehicle turns, so that the alarm cannot be given along with the turning of the vehicle, and the alarm is inaccurate.
In order to achieve the above object, the present invention provides a vehicle warning method, including:
acquiring the speed of a left wheel and the speed of a right wheel;
comparing the speed of the left wheel with the speed of the right wheel;
when the left wheel is higher than the right wheel in rotation speed, controlling an alarm on the vehicle to output a right-turning alarm signal;
and when the right wheel is greater than the rotating speed of the left wheel, controlling an alarm on the vehicle to output a left-turning alarm signal.
Preferably, before the step of obtaining the vehicle speeds of the left wheel and the right wheel, the vehicle warning method further includes:
determining states of a left turn light and a right turn light of the vehicle;
and when the state of the left steering lamp and/or the right steering lamp is the off state, executing the step of acquiring the speed of the left wheel and the right wheel.
Preferably, after the step of determining the state of the target turn signal of the vehicle, the method further comprises:
when the left steering lamp is in the lighting state, controlling the alarm on the vehicle to output the left turning alarm signal;
and when the right steering lamp is in a lighting state, controlling the alarm on the vehicle to output the right-turning alarm signal.
Preferably, the vehicle warning method further includes:
acquiring the state of a reversing switch of the vehicle;
and when the reversing switch is turned off, determining the states of a left steering lamp and a right steering lamp of the vehicle.
Preferably, after the step of acquiring the state of the reverse switch of the vehicle, the vehicle warning method further includes:
and when the reversing switch is turned on, controlling the alarm device to output a reversing alarm signal.
Preferably, the vehicle warning method further includes:
acquiring the speed of the vehicle;
and when the vehicle speed is less than a preset threshold value, executing the step of acquiring the state of a reversing switch of the vehicle.
Preferably, the vehicle warning method further includes:
acquiring the state of a switch of a danger alarm lamp;
and when the danger alarm lamp switch is turned off, executing the step of acquiring the state of a reversing switch of the vehicle.
Preferably, the vehicle warning method further includes:
and when the small lamp switch is turned on, the decibel value of the alarm on the vehicle is adjusted downwards.
In addition, to achieve the above object, the present invention provides a vehicle warning device, comprising a processor, a memory, and a vehicle warning program stored in the memory and operable on the processor, wherein the vehicle warning program, when executed by the processor, implements any of the steps of the vehicle warning method described above.
Further, to achieve the above object, the present invention provides a computer-readable storage medium storing a vehicle alarm program that realizes the steps of the vehicle alarm method according to any one of the above when executed by a processor.
According to the vehicle alarm method provided by the embodiment of the invention, under the condition that the turn light switch is invalid or closed, the vehicle can still be alarmed for turning, the alarm accuracy and timeliness are improved, and the problem that the existing turn alarm can send turn alarm information without depending on a driver to turn on a corresponding turn light or a reminding device when the vehicle turns is solved.
Drawings
FIG. 1 is a schematic structural diagram of a vehicle warning device according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart diagram of a first embodiment of a vehicle warning method of the present invention;
FIG. 3 is a schematic flow chart diagram of a second embodiment of a vehicle warning method of the present invention;
FIG. 4 is a schematic flow chart diagram of a third embodiment of a vehicle warning method of the present invention;
FIG. 5 is a schematic flow chart diagram of a fourth embodiment of a vehicle warning method of the present invention;
FIG. 6 is a schematic flow chart diagram of a fifth embodiment of a vehicle warning method of the present invention;
FIG. 7 is a schematic flow chart diagram of a sixth embodiment of a vehicle warning method in accordance with the present invention;
FIG. 8 is a schematic flow chart diagram of a seventh embodiment of a vehicle warning method of the present invention;
fig. 9 is a flowchart illustrating an eighth embodiment of a vehicle warning method according to the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The main solution of the embodiment of the invention is as follows: acquiring the speed of a left wheel and the speed of a right wheel;
comparing the speed of the left wheel with the speed of the right wheel;
when the left wheel is higher than the right wheel in rotation speed, controlling an alarm on the vehicle to output a right-turning alarm signal;
and when the right wheel is greater than the rotating speed of the left wheel, controlling an alarm on the vehicle to output a left-turning alarm signal.
In the prior art, the vehicle alarm can only send out 'dripping, dripping and dripping' buzzing sounds, the warning content is not clear enough, the function of the alarm is single, and only one alarm function can be realized by one alarm. For example, a single-wire system alarm and a double-wire system alarm, the single-wire system alarm is grounded through the alarm itself, and the double-wire system alarm is grounded through an external lead. When the pin P1 is connected (for example, the pin P2 of the double-wire system is connected with a ground), the alarm works; when the pin P1 is connected with a left turn light switch signal, the alarm can be used as a left turn alarm; when the pin P1 is connected with a right turn light switch signal, the alarm can be used as a right turn alarm; when the pin P1 is connected with a reversing switch signal, the pin P1 can be used as a reversing alarm, so that a single alarm can only realize single function configuration, and when the left-turn, the right-turn and the reversing need to alarm, three alarms need to be configured on a vehicle, which results in high cost of a vehicle alarm system. Secondly, for other commercial alarms, such as a loudspeaker type alarm, the alarm is additionally provided with integrated circuit control, the control principle is slightly complex, the functions are also increased, the alarm can be multipurpose, and the alarm is also in a hard wire signal triggering type, but the alarm plays different voice contents according to different input signals, and when a left turn light switch signal is effective, the alarm plays 'left turn, please notice' voice warning; when the switch signal of the right turn light is effective, the alarm plays 'turn right, please notice' voice warning; when the reversing switch signal is effective, the alarm plays the voice warning of reversing and please notice; when the backing signal is effective, the left and right steering signal inputs are invalid, if no vehicle speed signal is input, the alarm cannot be turned off according to the vehicle speed value, for example, when the vehicle changes lane at a higher vehicle speed, the alarm will work as long as the steering lamp switch is effective, and false alarm of alarm information is caused.
The invention provides a solution, a vehicle control system acquires the speed of a left wheel and the speed of a right wheel in real time or at regular time, compares the difference value between the speeds of the left wheel and the right wheel in real time or at regular time, if the left wheel is greater than the rotating speed of the right wheel, the vehicle is in a right turning state, controls an alarm on the vehicle to output a right turning alarm signal, and the right turning alarm signal can be a voice prompt of 'right turning, please notice' and the like or a buzzer of 'dropping, dropping and dropping'; when the right wheel is larger than the rotating speed of the left wheel, the vehicle is in a left turning state, the alarm on the vehicle is controlled to output a left turning alarm signal, the right turning alarm signal can be voice prompt such as 'left turning, please notice' or 'drop, drop and drop' buzzing sound, and through the mode, when the vehicle turns, turning alarm information can be sent out without depending on a driver to turn on a corresponding steering lamp or a reminding device.
A plurality of different alarms can be realized through one alarm, and even if the turn signal lamp switch is invalid or is closed, the alarm can still be given to the turning of the vehicle, so that the accuracy and the timeliness of the alarm are improved.
As shown in fig. 1, fig. 1 is a schematic terminal structure diagram of a hardware operating environment according to an embodiment of the present invention.
The terminal of the embodiment of the invention can be a PC, and can also be terminal equipment such as a vehicle-mounted system or a vehicle control system.
As shown in fig. 1, the terminal may include: a processor 1001, such as a CPU, a memory 1003, and a communication bus 1002. Wherein a communication bus 1002 is used to enable connective communication between these components. The memory 1003 may be a high-speed RAM memory or a non-volatile memory (e.g., a disk memory). The memory 1003 may alternatively be a storage device separate from the processor 1001.
Those skilled in the art will appreciate that the terminal structure shown in fig. 1 is not intended to be limiting and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
As shown in fig. 1, the memory 1003, which is a kind of computer storage medium, may include therein an operating system, a network communication module, a user interface module, and a vehicle alarm processing program.
In the terminal shown in fig. 1, the processor 1001 may be configured to invoke the vehicle alarm processing stored in the memory 1003 and perform the following operations:
acquiring the speed of a left wheel and the speed of a right wheel;
comparing the speed of the left wheel with the speed of the right wheel;
when the left wheel is higher than the right wheel in rotation speed, controlling an alarm on the vehicle to output a right-turning alarm signal;
and when the right wheel is greater than the rotating speed of the left wheel, controlling an alarm on the vehicle to output a left-turning alarm signal.
Further, the processor 1001 may call the vehicle alarm process stored in the memory 1003, and also perform the following operations:
before the step of obtaining the vehicle speeds of the left wheel and the right wheel, the vehicle alarm method further comprises:
determining states of a left turn light and a right turn light of the vehicle;
and when the state of the left steering lamp and/or the right steering lamp is the off state, executing the step of acquiring the speed of the left wheel and the right wheel.
Further, the processor 1001 may call the vehicle alarm process stored in the memory 1003, and also perform the following operations:
the step of determining the state of the target turn signal of the vehicle includes:
when the left steering lamp is in the lighting state, controlling an alarm on the vehicle to output a left-turning alarm signal;
and when the right steering lamp is in a lighting state, controlling an alarm on the vehicle to output a right-turning alarm signal.
Further, the processor 1001 may call the vehicle alarm process stored in the memory 1003, and also perform the following operations:
the vehicle warning method further includes:
acquiring the state of a reversing switch of the vehicle;
and when the reversing switch is turned off, determining the states of a left steering lamp and a right steering lamp of the vehicle.
Further, the processor 1001 may call the vehicle alarm process stored in the memory 1003, and also perform the following operations:
after the step of obtaining the state of the reversing switch of the vehicle, the vehicle alarm method further includes:
and when the reversing switch is turned on, controlling the alarm device to output a reversing alarm signal.
Further, the processor 1001 may call the vehicle alarm process stored in the memory 1003, and also perform the following operations:
the vehicle warning method further includes:
acquiring the speed of the vehicle;
and when the vehicle speed is less than a preset threshold value, executing the step of acquiring the state of a reversing switch of the vehicle.
Further, the processor 1001 may call the vehicle alarm process stored in the memory 1003, and also perform the following operations:
acquiring the state of a switch of a danger alarm lamp;
and when the danger alarm lamp switch is turned off, executing the step of acquiring the state of a reversing switch of the vehicle.
Further, the processor 1001 may call the vehicle alarm process stored in the memory 1003, and also perform the following operations:
the vehicle warning method further includes:
and when the small lamp switch is turned on, the decibel value of the alarm on the vehicle is adjusted downwards.
Referring to fig. 2, in a first embodiment, the vehicle warning method includes:
step S70, acquiring the speed of the left wheel and the right wheel;
it can be understood that the vehicle speeds of the left wheel and the right wheel are measured by an engine speed sensor, a vehicle speed sensor, a wheel speed sensor and/or a deceleration sensor, for example, the wheel speed sensor can also be used for monitoring the rotational speed of the wheel.
Step S80, comparing the speeds of the left wheel and the right wheel;
in the technical scheme provided by the invention, after the vehicle control system acquires the vehicle speeds of the left wheel and the right wheel of the vehicle in real time or at regular time, the vehicle speed of the left wheel is compared with the vehicle speed of the right wheel, so that the situation that the vehicle speed of the left wheel is inconsistent with the vehicle speed of the right wheel can occur when the vehicle changes the traveling state, when a driver forgets to turn on a steering lamp when the vehicle turns, the state of the vehicle, such as left turning or right turning, can be judged in real time or at regular time by comparing the vehicle speed of the left wheel with the vehicle speed of the right wheel, and the subsequent alarm signal output can be carried out, so that the alarm accuracy is improved.
Step S90, when the left wheel is larger than the right wheel, controlling an alarm on the vehicle to output a right-turn alarm signal;
in the technical scheme provided by the invention, when the vehicle turns right, the speed of the right wheel is lower than that of the left wheel, so that the alarm on the vehicle can be controlled to output a right-turning alarm signal by judging that the left wheel is higher than the rotating speed of the right wheel, and the right-turning alarm signal can be a voice prompt of 'right-turning, please notice' and the like or a buzzer of 'dropping, dropping' and the like.
And S100, controlling an alarm on the vehicle to output a left-turning alarm signal when the right wheel is higher than the rotating speed of the left wheel.
In the technical scheme provided by the invention, when the vehicle turns left, the speed of the left wheel is lower than that of the right wheel, so that the alarm on the vehicle can be controlled to output a left-turning alarm signal by judging that the left wheel is higher than the rotating speed of the left wheel, and the left-turning alarm signal can be a voice prompt of 'left-turning, attention-calling' and the like or a buzzer of 'dropping, dropping and dropping' and the like.
Specifically, compared with the traditional vehicle alarm, the alarm can only send out 'drip, drip and drip' buzzing sounds, the alarm content is not clear enough, the function of the alarm is single, one alarm can only realize one alarm function, or the traditional loudspeaker type alarm can only alarm singly, and the alarm can work when a turn light switch is effective, so that the false alarm of the alarm information is caused.
Further, referring to fig. 3, a second embodiment of the vehicle alarm method according to the present invention is proposed based on the first embodiment, and in this embodiment, the vehicle alarm method further includes:
s50, determining states of a left turn light and a right turn light of the vehicle;
and S60, acquiring the speed of the left wheel and the right wheel when the state of the left turn light and/or the right turn light is in the off state.
For a loudspeaker type alarm, the alarm does not have a judgment algorithm function, and when a turn light switch is not turned on (or is invalid), the alarm cannot work when a vehicle turns, so that the problem that alarm information is not sent out is solved.
In this embodiment, in the vehicle alarm method of the present invention, the vehicle control system may first obtain states of the left turn light and the right turn light, wherein the vehicle control system may determine whether the left turn light and the right turn light are turned on according to on/off signals of the left turn light and the right turn light, and if the left turn light and the right turn light are in an effective state or can be turned on correspondingly with a change of a vehicle state, the vehicle speed of the left wheel and the right wheel is not required to be monitored, and the vehicle speed of the left wheel and the right wheel is then determined. However, if the left turn signal and the right turn signal of the vehicle are in an invalid state or cannot be turned on according to the change of the vehicle state, the vehicle control system may monitor the rotation speeds of the left wheel and the right wheel through the wheel speed sensor and perform the step of obtaining the vehicle speeds of the left wheel and the right wheel, so that even if the left turn signal and the right turn signal of the vehicle cannot be used, the vehicle control system may determine that the vehicle is turning right by obtaining the rotation speeds of the left wheel and the right wheel and comparing the rotation speeds of the left wheel and the right wheel, for example, subtracting the rotation speeds of the left wheel and the right wheel, if the rotation speed of the left wheel is greater than the rotation speed of the right wheel, the vehicle control system may send out a right turn warning signal without the operation of the driver, and similarly, if the rotation speed of the left wheel is less than the rotation speed of the right wheel, the vehicle control system may determine that the vehicle is turning left without the operation of the driver, therefore, the vehicle alarming method can realize alarming along with the turning of the vehicle without depending on the turning of a driver when the vehicle turns, and improves the accuracy of alarming.
Further, referring to fig. 4, a third embodiment of the warning method for a vehicle according to the present invention is provided based on the second embodiment, and in this embodiment, after step S50, the method further includes:
s61, when the left turn light is in the lighting state, controlling the alarm on the vehicle to output the left turn alarm signal;
and S62, when the right steering lamp is in the lighting state, controlling the alarm on the vehicle to output the right-turning alarm signal.
In this embodiment, when the vehicle is started, for example, when the ignition key of the vehicle is turned to the IG range, the alarm on the vehicle starts to operate, and in addition, the vehicle control system simultaneously acquires the left turn light, the right turn light, the reverse switch, the vehicle speed, the small light switch, the rotation speed of the left wheel, the rotation speed of the right wheel, the vehicle configuration information, and the like, where the vehicle configuration information may be the front wheel moment, the tires, and the like. The vehicle control system monitors the state condition of a target steering lamp, for example, whether a left steering lamp and a right steering lamp can be normally started or not can be monitored, the current state of the vehicle is obtained, if the vehicle is in a left turning state at the moment and the left steering lamp is started (lightened) along with the left turning of the vehicle, the vehicle control system controls an alarm on the vehicle to output a left turning alarm signal, wherein the left turning alarm signal can be a voice prompt of 'left turning, please notice' and the like or a buzzer sound of 'dropping, dropping' and the like; if the vehicle is in a right-turn state at this time, and the right turn lamp is started (lighted) along with the right turn of the vehicle, the vehicle control system controls the alarm on the vehicle to output a right-turn alarm signal, wherein the right-turn alarm signal can be a voice prompt of 'right turn, please notice' or the like, or a buzzing sound of 'drop, drop' or the like. Therefore, when the vehicle is changed into a left-turning state or a right-turning state, the left-turning and the right-turning give out corresponding alarm signals, the rotating speeds of the left wheel and the right wheel do not need to be obtained and compared through a vehicle control system, and the burden of the vehicle control system can be effectively reduced.
Further, referring to fig. 5, a fourth embodiment of the vehicle alarm method according to the present invention is proposed based on the second embodiment, and in this embodiment, the vehicle alarm method further includes:
s30, acquiring the state of a reversing switch of the vehicle;
and S40, when the reversing switch is turned off, determining the states of a left steering lamp and a right steering lamp of the vehicle.
Further, referring to fig. 6, a fifth embodiment of the vehicle alarm method of the present invention is proposed based on the fourth embodiment, and in this embodiment, after step S30, the vehicle alarm method further includes:
and S41, when the reversing switch is turned on, controlling the alarm to output a reversing alarm signal.
In this embodiment, the state of the vehicle further includes a reversing state, the opening and closing signal of the reversing switch can be monitored according to the vehicle control system, so as to determine whether the reversing switch is opened or closed, when the vehicle reverses, the reversing switch is correspondingly opened, and a reversing alarm signal is sent out, if the reversing switch is in the closed state when the vehicle reverses, it is necessary to determine whether the vehicle is in the turning state, that is, the states of a left turn light and a right turn light of the vehicle need to be obtained, if the states of the left turn light and the right turn light are both in the closed state, the vehicle speed of the left wheel and the right wheel needs to be obtained, and the current state of the vehicle is determined by comparing the vehicle speeds of the left wheel and the right wheel, and a corresponding alarm signal is sent. If the reversing switch is correspondingly turned on when the vehicle reverses, a reversing alarm signal is sent, wherein the reversing alarm signal can be a voice prompt of reversing, please notice and the like or a buzzing sound of dropping, dripping and the like. Therefore, the reverse operation can be preferentially alerted.
Further, referring to fig. 7, a sixth embodiment of the vehicle alarm method according to the present invention is proposed based on the fourth embodiment, and in this embodiment, the vehicle alarm method further includes:
s10, acquiring the speed of the vehicle;
and S20, acquiring the state of a reversing switch of the vehicle when the vehicle speed is less than a preset threshold value.
In this embodiment, when the vehicle changes lane or overtakes a curve, the speeds of the left wheel and the right wheel of the vehicle are not equal, and false alarm may occur to the alarm of the vehicle, so a preset threshold value may be set, and the vehicle control system monitors the vehicle speed of the vehicle in real time or at regular time, and if the vehicle speed is less than the preset threshold value, it indicates that the vehicle is not in lane change or overtaking a curve but in a turning or reversing stage, so the step of acquiring the state of the reversing switch of the vehicle is performed, and it is ensured that the alarm signal can be sent out in time. If the vehicle speed is greater than the preset threshold value, the vehicle can be judged to be in a driving state, and even if the rotating speeds of the left wheel and the right wheel are not consistent, the vehicle cannot be judged to be in a turning state.
Further, referring to fig. 7, a seventh embodiment of the vehicle alarm method according to the present invention is proposed based on the fourth embodiment, and in this embodiment, the vehicle alarm method further includes:
s11, acquiring the state of a danger alarm lamp switch;
and S21, when the danger alarm lamp switch is closed, executing the step of acquiring the state of the reversing switch of the vehicle.
In this embodiment, when the vehicle turns or reverses, the hazard warning lamp switch of the vehicle can be turned on to this warns people near the vehicle, but if the vehicle turns or reverses the vehicle in-process, the hazard warning lamp switch of vehicle is invalid or closed, then carries out the step of confirming the state of the left indicator light and the right indicator light of vehicle, guarantees that alarm signal can send in time.
When the vehicle control system receives that the current vehicle speed is greater than the preset threshold value, the vehicle control system sends a non-alarm instruction to the alarm, and the alarm does not execute the output of any alarm signal; when the vehicle control system receives a danger alarm lamp switching signal, the vehicle control system sends a no-alarm instruction to the alarm, and the alarm does not execute output of any alarm signal.
When the vehicle control system receives that the current vehicle speed is less than the preset threshold value and the vehicle control system does not receive a switch signal of a danger alarm lamp, the vehicle control system performs logic judgment processing on the states of a left steering lamp, a right steering lamp and a reversing switch:
1) when the vehicle control system receives the input of a reversing switch signal, the vehicle control system immediately controls the alarm to send a reversing alarm signal, such as sending a warning sound of 'reversing and please note', or sending a 'drop, drop and drop' buzzing sound;
2) when the left turn light is in a lighting state, immediately controlling the alarm to output a left turn alarm signal, and giving out a prompt tone of 'turning left and please notice', or giving out a 'dripping, dripping and dripping' buzzing tone;
wherein, when the vehicle turns left without turning on the left turn light switch (i.e. the vehicle control system does not receive the left turn light switch signal), the vehicle control system acquires the vehicle speeds of the left wheel and the right wheel in real time or at regular time, compares the difference value between the vehicle speeds of the left wheel and the right wheel in real time or at regular time, and judges whether the absolute value of the difference value between the vehicle speeds of the left wheel and the right wheel is larger than the preset threshold value, if the right wheel is larger than the rotation speed of the left wheel and the absolute value of the difference value between the vehicle speeds of the left wheel and the right wheel is larger than the preset threshold value, then the vehicle is in the left turn state, then the alarm on the vehicle is controlled to output a left turn alarm signal, the left turn alarm signal can be 'left turn, please notice' or the buzzer of 'drip, drip', if the absolute value of the difference value between the vehicle speeds of the left wheel and the right wheel is smaller than the preset threshold value, if the vehicle is not in a left-turn state, the alarm does not send out an alarm signal;
3) when the right turn light is in a lighting state, immediately controlling the alarm to output the right turn alarm signal, and giving out a prompt sound of turning right and giving attention to the right or giving out a buzzing sound of dropping, dripping and dripping;
wherein, when the vehicle turns right without turning on the right turn light switch (i.e. the vehicle control system does not receive the right turn light switch signal), the vehicle control system acquires the vehicle speeds of the left wheel and the right wheel in real time or at regular time, compares the difference value between the vehicle speeds of the left wheel and the right wheel in real time or at regular time, and judges whether the absolute value of the difference value between the vehicle speeds of the left wheel and the right wheel is larger than the preset threshold value, if the left wheel is larger than the rotation speed of the right wheel, if the absolute value of the difference value between the vehicle speeds of the left wheel and the right wheel is larger than the preset threshold value, the vehicle is in the right turn state, the alarm on the vehicle is controlled to output a right turn alarm signal, the right turn alarm signal can be 'right turn, please notice' or the buzz of 'drip, and drip', if the absolute value of the difference value between the vehicle speeds of the left wheel and the right wheel is smaller than the preset threshold value, it indicates that the vehicle is not in a right-turn state, and the alarm does not give an alarm signal.
It is understood that the vehicle control system in the vehicle alarm method of the present invention may include a CAN transceiver for receiving the above-mentioned various signals.
In addition, the vehicle alarm method can also set a wheel speed algorithm group, which comprises the following specific steps:
when the vehicle turns, the front wheel, the rear wheel, the left wheel and the right wheel rotate and have different distances, and wheel speed differences are generated among the front wheel, the rear wheel, the left wheel and the right wheel. In the present embodiment, wheel speed difference data of the left wheel and the right wheel is mainly used, and the factors influencing the wheel speeds of the left wheel and the right wheel are mainly front wheel track and tire, and left and right turn tests are performed at various vehicle speeds and various angles by vehicle types configured by parameters of various front wheel moments, parameters of various tires and the like, for example, the parameters of the front wheel track may be 1660mm, 1695m, 1830mm, 1915mm, and the parameters of the tires may be 7.50R16, 7.50R20, 8.25R16, 8.25R20 and the like (wherein 8.25R20 represents 8.25 inches, and the bead diameter is 20 inches), and the above data are collected by using a CAN transceiver to obtain rotation data of each wheel in real time, and based on the collected effective data, velocity difference experience difference between the vehicle types (vehicle types with different front wheel tracks and tire configurations) is obtained, and finally, the threshold value of each vehicle type and each right wheel is confirmed, for example:
the data 1:1660mm axial moment section matched with 7.50R16 tire, the judgment threshold is A;
the data 2, the axle moment segment of 1695mm is matched with a 7.50R16 tire, and the judgment threshold value is B;
the data 3:1830mm axle moment section is matched with 8.25R16 tyres, and the judgment threshold is C.
The formula determination is carried out by designing a determination formula of the left wheel and the right wheel of the vehicle and calling different determination thresholds (A, B, C and the like) according to real-time wheel speed difference data and configuration information of the vehicle, for example:
equation 1: when the rotating speed of the left wheel minus the rotating speed of the right wheel is larger than a judgment threshold value, the vehicle is judged to turn right;
i.e. VLeft side of-VRight side>VDecision thresholdTurning right for the vehicle;
equation 2: when the rotating speed of the left wheel minus the rotating speed < -of the right wheel is less than a judgment threshold value, the vehicle is judged to turn left;
i.e. VLeft side of-VRight side<-VDecision thresholdTurning left for the vehicle;
equation 3: -determining that the vehicle is cornering-free, with a determination threshold < rotation speed of the left wheel minus rotation speed of the right wheel < determination threshold;
namely, -VDecision threshold<VLeft side of-VRight side<VDecision thresholdThe vehicle has no turn.
Therefore, whether the vehicle needs to send out an alarm signal or not can be determined by judging the state of the danger alarm lamp, and the alarm is monitored and alarmed when the danger alarm lamp is invalid, so that the alarm accuracy is improved.
Further, referring to fig. 8, an eighth embodiment of the vehicle alarm method according to the present invention is proposed based on the fourth embodiment, and in this embodiment, the vehicle alarm method further includes:
and S13, when the small lamp switch is turned on, the decibel value of the alarm on the vehicle is adjusted downwards.
In the embodiment, the vehicle alarm method provided by the invention is additionally provided with the auxiliary function of the small lamp switch, when the vehicle travels at night, the decibel of the alarm of the vehicle is larger in the daytime, and the alarm signal is sent out at night, so that noise pollution can be caused, therefore, the signal input of the small lamp switch is increased, and when the small lamp switch is turned on, the sound decibel of the alarm at night is reduced, so that the noise pollution is avoided. When the small lamp switch is turned off, the sound decibel of the alarm is improved, and the alarm effect of the alarm in the daytime is improved.
In conclusion, the vehicle alarm method replaces the traditional high-cost strategy of judging whether the vehicle turns or backs a car by using a plurality of alarms, sets priority processing of the alarms, defines left-turning alarm, right-turning alarm and backing alarm priority, avoids chaotic alarm, enables the vehicle to send out corresponding alarm signals according to the rotating speeds of the left wheel and the right wheel under the condition that the corresponding turn lights are not turned on, simultaneously increases the monitoring of the current vehicle speed, sets a preset threshold value of the vehicle speed, and can close the alarms when the preset threshold value is exceeded, thereby solving the problem of false alarm of the alarms when the vehicle changes lanes; in addition, a small lamp switching strategy is added, the sound decibel of the night alarm is reduced, and noise pollution is avoided.
In addition, the embodiment of the present invention further provides a vehicle alarm device, which includes a processor 1001, a memory 1003 and a vehicle alarm program stored in the memory 1003 and operable on the processor 1001, wherein the vehicle alarm program, when executed by the processor 1001, implements any of the steps of the vehicle alarm method described above.
Furthermore, an embodiment of the present invention further provides a computer-readable storage medium, which stores a vehicle alarm program, and when the vehicle alarm program is executed by the processor 1001, the steps of the vehicle alarm method described in any one of the above are implemented.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A vehicle warning method characterized by comprising:
acquiring the speed of a left wheel and the speed of a right wheel;
comparing the speed of the left wheel with the speed of the right wheel;
when the left wheel is higher than the right wheel in rotation speed, controlling an alarm on the vehicle to output a right-turning alarm signal;
and when the right wheel is greater than the rotating speed of the left wheel, controlling an alarm on the vehicle to output a left-turning alarm signal.
2. The vehicle warning method as claimed in claim 1, wherein said step of obtaining the vehicle speeds of the left and right wheels is preceded by the vehicle warning method further comprising:
determining states of a left turn light and a right turn light of the vehicle;
and when the state of the left steering lamp and/or the right steering lamp is the off state, executing the step of acquiring the speed of the left wheel and the right wheel.
3. The vehicle warning method of claim 2, further comprising, after the step of determining the status of the target turn signal of the vehicle:
when the left steering lamp is in the lighting state, controlling the alarm on the vehicle to output the left turning alarm signal;
and when the right steering lamp is in a lighting state, controlling the alarm on the vehicle to output the right-turning alarm signal.
4. The vehicle warning method according to claim 2, further comprising:
acquiring the state of a reversing switch of the vehicle;
and when the reversing switch is turned off, determining the states of a left steering lamp and a right steering lamp of the vehicle.
5. The vehicle warning method according to claim 4, wherein after the step of acquiring the state of a reverse switch of the vehicle, the vehicle warning method further comprises:
and when the reversing switch is turned on, the alarm is controlled to output a reversing alarm signal.
6. The vehicle warning method according to claim 4, further comprising:
acquiring the speed of the vehicle;
and when the vehicle speed is less than a preset threshold value, executing the step of acquiring the state of a reversing switch of the vehicle.
7. The vehicle warning method according to claim 4, further comprising:
acquiring the state of a switch of a danger alarm lamp;
and when the danger alarm lamp switch is turned off, executing the step of acquiring the state of a reversing switch of the vehicle.
8. The vehicle warning method according to claim 4, further comprising:
and when the small lamp switch is turned on, the decibel value of the alarm on the vehicle is adjusted downwards.
9. A vehicle warning device comprising a processor, a memory, and a vehicle warning program stored on the memory and executable on the processor, the vehicle warning program when executed by the processor implementing the steps of the vehicle warning method as claimed in any one of claims 1 to 8.
10. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a vehicle warning program which, when executed by a processor, implements the steps of the vehicle warning method according to any one of claims 1 to 8.
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