CN114750687A - Vehicle-mounted life body monitoring and alarming method, system, storage medium and equipment - Google Patents
Vehicle-mounted life body monitoring and alarming method, system, storage medium and equipment Download PDFInfo
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- CN114750687A CN114750687A CN202210320773.2A CN202210320773A CN114750687A CN 114750687 A CN114750687 A CN 114750687A CN 202210320773 A CN202210320773 A CN 202210320773A CN 114750687 A CN114750687 A CN 114750687A
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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
- B60Q5/00—Arrangement or adaptation of acoustic signal devices
- B60Q5/005—Arrangement or adaptation of acoustic signal devices automatically actuated
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/886—Radar or analogous systems specially adapted for specific applications for alarm systems
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Abstract
The invention provides a vehicle-mounted vital body monitoring and alarming method, a system, a storage medium and equipment, wherein the vehicle-mounted vital body monitoring and alarming method comprises the steps of obtaining a vehicle power-off instruction, detecting according to an echo signal received by a millimeter wave radar when a vehicle is detected to be in a closed state, collecting detection results for multiple times at preset intervals, continuously collecting the detection results in a first time period when the ratio of the detection results with vital sign signals in the preset interval reaches a first preset ratio, wherein the first time period comprises a plurality of preset intervals, and judging whether the ratio of the detection results with vital sign signals reaches the first preset ratio or not in the first time period; if yes, determining that the life exists in the vehicle, and triggering an alarm mode. According to the vehicle-mounted life monitoring and alarming method, system, storage medium and device, the accuracy of life detection in a vehicle is improved by periodically detecting and judging the echo signals received by the millimeter wave radar in a first time period.
Description
Technical Field
The invention relates to the technical field of automotive electronics, in particular to a vehicle-mounted life body monitoring and alarming method, a system, a storage medium and equipment.
Background
In recent years, with the popularization of private cars, safety accidents that suffocate children when trapped in cars are rare, and the number of cases that pets are trapped in cars to die is quite large. Therefore, the in-vehicle life detection technology is valued by more and more enterprises due to the respect to life.
In order to solve the problem, a special vital sign detection technology in the car is provided for a plurality of car enterprises. These solutions fall into several general categories: an infrared detection scheme, a camera detection scheme and a gravity sensing detection scheme. The above techniques are affected by the limitation factors such as high temperature weather, light brightness and inconsistent body weight.
In the prior art, millimeter wave radar technology is more and more widely applied to advanced assistant driving systems by more and more automobiles, and occupies an indispensable position in future automatic driving systems. Compared with sensors such as vision and laser radar, the millimeter wave radar has the unique advantages of being all-weather, long in operating distance, high in speed measurement precision and the like. However, the millimeter wave radar itself is easily affected by bad weather, such as thunderstorm weather, due to physical limitations, and data fluctuation is significant, thereby causing a reduction in detection accuracy.
Disclosure of Invention
Based on the above, the invention aims to provide a vehicle-mounted life body monitoring and alarming method, a system, a storage medium and equipment, which solve the problem of detection accuracy reduction caused by the influence of bad weather in the background technology.
The invention provides a vehicle-mounted life body monitoring and alarming method, which comprises the following steps:
the method comprises the steps of obtaining a vehicle power-off instruction, starting a millimeter wave radar to transmit a pulse signal to the inside of a vehicle for detection when the vehicle is detected to be in a closed state, receiving an echo signal reflected after the pulse signal is detected, and detecting whether the echo signal has a vital sign signal or not;
collecting detection results for multiple times every a preset period, and judging that a life exists in the preset period when the ratio of the detection results of the vital sign signals in the preset period reaches a first preset ratio;
continuously acquiring detection results in a first time period, wherein the first time period comprises a plurality of preset cycles, and judging whether the ratio of the detection results with vital sign signals reaches a first preset ratio or not in the first time period;
if yes, determining that the life exists in the vehicle, and triggering an alarm mode.
According to the vehicle-mounted life monitoring and alarming method, echo signals detected by the millimeter wave radar are collected in a preset period, when the ratio of the vital sign signals in the detection result reaches a first preset ratio, the life exists in the period, whether the ratio of the detection result of the vital sign signals in a plurality of periods in the first period reaches the first preset ratio is continuously judged, if yes, the life exists in the vehicle is judged, and the detection precision is improved through cyclic detection judgment of periodicity and the first period, so that the problem that the detection precision is reduced due to the influence of bad weather in the background technology is solved.
Further, the step of determining whether the ratio of the detection results of the vital sign signals reaches a first preset ratio further includes:
if the ratio of the detection results with the vital sign signals does not reach the first preset ratio, judging whether the ratio of the detection results with the vital sign signals reaches a second preset ratio or not;
if the ratio of the detection results with the vital sign signals reaches a second preset ratio, continuously collecting the detection results of a second time period, wherein the second time period comprises a plurality of preset cycles, and judging whether the ratio of the detection results with the vital sign signals reaches the second preset ratio or not in the second time period;
if yes, determining that the life exists in the vehicle, and triggering an alarm mode.
Further, the closed state includes:
and when judging that the main driving safety belt of the vehicle is not fastened, all windows and skylights in the vehicle are in a closed state or the opening positions are smaller than a preset value and the doors are in a closed state, judging that the vehicle is in the closed state.
Further, triggering the alert mode includes:
the control vehicle opens and whistles and two dodges to send the life detection condition in the car to the car owner or backstage, in order to remind the car owner to make the processing.
Further, send the interior life detection condition of car to owner or backstage to include after reminding the owner to make the step of handling:
judging whether the vehicle releases the closed state of the vehicle or closes the alarm mode;
if yes, controlling the millimeter wave radar to enter a dormant state;
if not, the vehicle body is automatically controlled to be released from the closed state.
Further, the step of automatically controlling the body to release the closed state includes:
and sending opening request instructions to the car windows and the skylight, and controlling the skylight to be opened according to the opening request instructions.
Further, the step of automatically controlling the body to release the closed state further comprises:
and sending a starting request instruction to the air conditioner, and controlling the air conditioner to be in a working state according to the starting request instruction so as to keep the air in the vehicle to circulate.
In another aspect of the present invention, a vehicle-mounted life monitoring and alarming system is provided, which includes:
the detection module is used for acquiring a vehicle power-off command, starting the millimeter wave radar to transmit a pulse signal to the inside of the vehicle for detection when the vehicle is detected to be in a closed state, receiving an echo signal reflected after the pulse signal is detected, and detecting whether the echo signal has a vital sign signal;
the first judgment module is used for collecting detection results for multiple times every preset period, and judging that the life exists in the preset period when the ratio of the detection results of the vital sign signals in the preset period reaches a first preset ratio;
the second judgment module is used for continuously acquiring the detection result in a first time period, the first time period comprises a plurality of preset cycles, and whether the ratio of the detection results with vital sign signals reaches a first preset ratio or not is judged in the first time period;
and the alarm module is used for judging that the life exists in the vehicle and triggering an alarm mode if the ratio of the detection results of the vital sign signals reaches a first preset ratio.
Another aspect of the present invention provides a computer-readable storage medium, on which a computer program is stored, which when executed by a processor, implements the in-vehicle living body monitoring and alarming method according to any one of the above.
The invention also provides data processing equipment which comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the processor executes the program to realize the vehicle-mounted life body monitoring and alarming method.
Drawings
FIG. 1 is a flow chart of a vehicle-mounted life body monitoring and alarming method in a first embodiment of the invention;
FIG. 2 is a flow chart of a monitoring and alarming method for a vehicle-mounted living body according to a second embodiment of the present invention;
FIG. 3 is a logic diagram of a second embodiment of a vehicle warning system in accordance with the present invention;
FIG. 4 is a block diagram of a vehicle-mounted life body monitoring and alarming system in a third embodiment of the present invention;
fig. 5 is a flow chart of an alert mode in a second embodiment of the present invention.
The following detailed description will further illustrate the invention in conjunction with the above-described figures.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully hereinafter with reference to the accompanying drawings. Several embodiments of the invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Example one
Referring to fig. 1, a vehicle-mounted life monitoring and alarming method according to a first embodiment of the present invention includes steps S11-S15.
And S11, obtaining a vehicle power-off command, starting a millimeter wave radar to transmit a pulse signal to the vehicle for detection when the vehicle is detected to be in a closed state, receiving an echo signal reflected after the pulse signal is detected, and detecting whether the echo signal has a vital sign signal.
The millimeter wave radar is used as a main controller for monitoring and alarming the characteristics of the vehicle-mounted life body, the millimeter wave radar judges that the power supply of the whole vehicle is in an OFF state at present, a main driving safety belt is not fastened, windows and a skylight in the vehicle are in a closed state or the opening position of the skylight is less than 10%, the vehicle door is locked or unlocked for a long time at the moment, but the vehicle door is in a tightly closed state, the millimeter wave radar judges that no driver exists in the vehicle and the vehicle door is in the closed state, and the detection of the characteristics of the life body is automatically started.
The millimeter wave radar has penetrability and can detect children covered by textiles; the installation can be hidden without an internal decoration hole; the robustness is strong, and the detection accuracy is not influenced by temperature and light; has privacy protection property; and has the function of preventing invasion.
The millimeter wave radar detection principle is that vital sign detection is carried out by transmitting continuous frequency modulation pulse signals to the environment in the vehicle, echo signals are reflected after the pulse signals contact the environment in the vehicle, the echo signals reflected by the millimeter wave radar are received, the echo signals contain movement information, and vital body characteristic signals can be accurately extracted through signal processing after multi-frame accumulation. The extractable vital signs include respiratory rate and heart rate, etc. The breathing of the life body is stronger motion information, and the millimeter wave radar can accurately judge whether the environment in the vehicle has vital sign signals such as breathing, so as to judge whether the life body exists.
And S12, collecting detection results for multiple times every other preset period, and judging whether the ratio of the echo signals of the vital sign signals in the preset period reaches a first preset ratio.
If the ratio of the echo signals of the vital sign signals in the preset period reaches the first preset ratio, step S13 is executed.
If the ratio of the echo signals of the vital sign signals in the preset period does not reach the first preset ratio, step S14 is executed.
In order to obtain more accurate detection results, the millimeter wave radar is required to perform multiple detections, and the multiple detections ensure that the radar has strong anti-interference performance, so that a final detection result is given. Collecting detection results for multiple times within preset time, judging whether the number of the detection results of the vital sign signals detected within the preset period reaches a preset first preset ratio, for example, collecting the detection results 100 times every 50ms from the preset time, wherein the first preset ratio is 80%, judging whether the detection results of 80 times have the vital sign signals in the detection results of 100 times, if so, the life exists in the preset period, and if not, the life does not exist in the preset period.
And S13, continuously collecting the detection result in the first time period, and judging whether the ratio of the detection results with the vital sign signals reaches a first preset ratio in the first time period.
If the ratio of the detected results of the vital sign signals reaches the first preset ratio, step S15 is executed.
And when the life exists in the preset period, continuously collecting a plurality of preset periods, and recording the plurality of preset periods as a first time period. And in the first time period, judging whether the detection result of the existing life reaches a first preset ratio or not according to the detection result of the echo signal in each preset period.
For example, the first time period includes 10 cycles, each cycle acquires echo signals of 100 times/50 ms, the first preset ratio is 80%, the 10 cycles are that 1000 echo signals are acquired within 500ms, it is determined whether the number of times of detection results of vital sign signals in the 1000 echo signals reaches 80%, and if yes, it is determined that a life exists in the vehicle.
And S14, judging that no life exists in the preset period.
And S15, judging that life exists in the vehicle, and triggering an alarm mode.
And when the life exists in the vehicle, triggering the vehicle alarm mode. The alarm mode informs the driver of the life detection condition in the car including control vehicle whistle, car light two sudden strain of a muscle, cell-phone APP and SMS, reminds to make the processing, if during unmanned response, opens ventilative with the automatic control skylight, sends simultaneously and opens the air conditioner request, and the closed condition in the car can be stopped to the double channel dual fail-safe confirmation mechanism, can stop unexpected emergence.
In summary, in the monitoring and alarming method for the vehicle-mounted living body in the above embodiment of the present invention, the echo signal detected by the millimeter wave radar is collected in the preset period, when the ratio of the vital sign signals in the detection result reaches the first preset ratio, it is determined that a living body exists in the period, and it is continuously determined whether the ratio of the detection result of the vital sign signals in a plurality of periods in the first period reaches the first preset ratio, if so, it is determined that a living body exists in the vehicle, and the detection accuracy is improved through the periodic detection and the cyclic detection determination in the first period, so as to solve the problem of the detection accuracy decrease caused by the influence of bad weather in the background technology.
Example two
Referring to fig. 2, a vehicle-mounted life monitoring and alarming method according to a second embodiment of the present invention includes steps S21-S28.
And S21, obtaining a vehicle power-off instruction, when the vehicle is detected to be in a closed state, starting the millimeter wave radar to transmit a pulse signal to the vehicle for detection, receiving an echo signal reflected after the pulse signal is detected, and detecting whether the echo signal has a vital sign signal.
The millimeter wave radar is used as a main controller for monitoring and alarming the characteristics of the vehicle-mounted living body, the millimeter wave radar judges that the power supply of the whole vehicle is in an OFF state at present, a main driving safety belt is not fastened, windows and a skylight in the vehicle are in a closed state or the opening position of the skylight is less than 10%, the vehicle door is locked or unlocked for a long time at the moment, but the vehicle door is in a tightly closed state, the millimeter wave radar judges that no driver exists in the vehicle and the vehicle door is in a closed state, and the detection of the characteristics of the living body is automatically started.
The millimeter wave radar has penetrability and can detect children covered by textiles; the installation can be hidden without an internal decoration hole; the robustness is strong, and the detection accuracy is not influenced by temperature and light; has privacy protection property; and has the function of preventing invasion.
The millimeter wave radar detection principle is that vital sign detection is carried out by transmitting continuous frequency modulation pulse signals to the environment in the vehicle, echo signals are reflected after the pulse signals contact the environment in the vehicle, the echo signals reflected by the millimeter wave radar are received, the echo signals contain movement information, and vital body characteristic signals can be accurately extracted through signal processing after multi-frame accumulation. The extractable vital signs include respiratory rate and heart rate, etc. The breathing of the life body is stronger motion information, and the millimeter wave radar can accurately judge whether the environment in the vehicle has vital sign signals such as breathing, so as to judge whether the life body exists.
And S22, collecting detection results for multiple times every other preset period, and judging whether the ratio of the echo signals of the vital sign signals in the preset period reaches a first preset ratio.
If the ratio of the echo signals of the vital sign signals in the preset period reaches the first preset ratio, step S23 is executed.
If the ratio of the echo signals with the vital sign signals in the preset period does not reach the first preset ratio, step S24 is executed.
In order to obtain more accurate detection results, the millimeter wave radar is required to perform multiple detections, and the multiple detections ensure that the radar has strong anti-interference performance, so that a final detection result is given. Collecting detection results for multiple times within a preset time, judging whether the number of the detection results of the vital sign signals detected within the preset period reaches a preset first preset ratio, for example, collecting the detection results 100 times every 50ms from the preset time, wherein the first preset ratio is 80%, judging whether the detection results of 80 times have the vital sign signals in the detection results of 100 times, if so, the life exists in the preset period, and if not, the life does not exist in the preset period.
And S23, judging whether life exists in the preset period, continuously collecting the detection result in a first time period, wherein the first time period comprises a plurality of preset periods, and judging whether the ratio of the detection results with the vital sign signals reaches a first preset ratio in the first time period.
If the ratio of the detected results of the vital sign signals reaches the first preset ratio, step S25 is executed.
If the life existence period in the first time period does not reach the second preset ratio, step S26 is executed.
And when the life exists in the preset period, continuously collecting a plurality of preset periods, and recording the plurality of preset periods as a first time period. And in the first time period, judging whether the detection result of the existing life reaches a first preset ratio or not according to the detection result of the echo signal in each preset period.
For example, the first time period includes 10 cycles, each cycle acquires echo signals of 100 times/50 ms, the first preset ratio is 80%, the 10 cycles are acquired within 500ms 1000 times of echo signals, whether the number of times of detection results of detecting that a vital sign signal exists in the 1000 times of echo signals reaches 80% is judged, and if yes, it is judged that a life exists in the vehicle.
And S24, judging that no life exists in the preset period.
And S25, judging that life exists in the vehicle, and triggering an alarm mode.
And when the life exists in the vehicle, triggering the vehicle alarm mode. The alarm mode informs the driver of the life detection condition in the car including control vehicle whistle, car light double flashing, cell-phone APP and SMS, reminds to make the processing, and when unmanned response, opens the automatic control skylight ventilative, sends simultaneously and opens the air conditioner request, and the mechanism is confirmed to double channel double insurance, removes the interior closed condition of car, can stop unexpected the emergence.
And S26, judging whether the ratio of the detection results of the vital sign signals reaches a second preset ratio or not.
If the ratio of the detected results of the vital sign signals reaches the second preset ratio, step S27 is executed.
If the ratio of the detected results of the vital sign signals does not reach the second preset ratio, step S28 is executed.
And in the first time period, if the detection result of the vital sign signals does not reach the first preset ratio, continuously judging whether the ratio of the detection results of the vital sign signals reaches the second preset ratio or not. For example, the second preset ratio is 20% to 80%, when the ratio of the vital sign signals existing in the detection results of 1000 times in 10 cycles does not reach 80%, it is determined whether the ratio is between 20% and 80%, and if so, step S27 is executed.
And S27, continuously acquiring the detection result of the second time period, and judging whether the ratio of the detection results with the vital sign signals reaches a second preset ratio.
If the ratio of the detected results of the vital sign signals reaches the second preset ratio, step S25 is executed.
If the ratio of the detection results of the vital sign signals does not reach the second preset ratio, step S28 is executed.
And continuously acquiring a plurality of echo signal detection results in a second time period, wherein the second time period comprises a plurality of preset cycles, and judging whether the detection result of the vital sign signals in the second time period reaches a second preset ratio. For example, the second time period includes 6 preset cycles, the detection results of the 6 preset cycles are collected, that is, the detection results are collected for 600 times within 300ms, whether the detection result of the vital sign signal is between 20% and 80% is continuously judged, if yes, it is judged that the life exists in the vehicle, and the alarm mode is triggered. If not, the life does not exist in the vehicle. And the detection result is judged through multiple cycles, so that the detection precision of the millimeter wave radar is further improved.
And S28, judging that no life exists in the vehicle.
The millimeter wave radar stops working and enters a dormant or low power consumption state.
As shown in FIG. 5, the present embodiment further provides an alarm mode, including steps S31-S34.
And S31, after detecting life in the vehicle and triggering an alarm mode, controlling the vehicle to turn on whistling and double-flashing, and sending the life detection condition in the vehicle to the vehicle owner or a background to remind the vehicle owner to process.
The alert mode is implemented by a vehicle alert system, as shown in fig. 3, comprising: the control system comprises a millimeter wave RADAR RADAR, a vehicle body control system BCM, a ripple anti-pinch module APM, an air conditioner controller AC, a remote control module TBOX and a skylight/skylight curtain controller ESRM/ESSM.
The millimeter wave RADAR monitors the power state, the door lock state, the skylight state and the window closing state of the whole vehicle, the millimeter wave RADAR is used as a condition for activating the millimeter wave RADAR to work, the millimeter wave RADAR is in the activated state to perform in-vehicle life body feature cycle detection within a certain time, if the life body signs are monitored, an alarm instruction is triggered, meanwhile, whether a driver corresponds to the alarm request is monitored, if no response is made, the millimeter wave RADAR sends window, skylight and air conditioner opening requests, and air circulation in the vehicle is kept.
The vehicle body control system BCM is used for feeding back the current power state of the whole vehicle, the states of the four-door locks and the skylight, and after receiving a millimeter wave RADAR alarm instruction, the vehicle body control system BCM drives a horn to whistle and a left steering lamp and a right steering lamp to flicker and alarm, and meanwhile, the skylight is controlled to be in an open state according to a millimeter wave RADAR request signal.
The ripple wave anti-pinch module APM sends the state of four vehicle windows of the whole vehicle, controls the four vehicle windows to be in an opening state according to a millimeter wave RADAR RADAR request instruction, and keeps air in the vehicle smooth.
The air conditioner controller AC is used for receiving the millimeter wave RADAR RADAR request instruction, controlling the air conditioner in the vehicle to be in an opening state, and adjusting the temperature and the air volume in the vehicle, so that the interior of the vehicle is always in a comfortable state.
The remote control module TBOX is used for uploading alarm information to the cloud after receiving the millimeter wave RADAR RADAR alarm signal and then pushing the alarm information to the user mobile phone APP/background customer service center, the user can select to close the alarm after receiving the alarm pushing, and if the user selects to close the alarm, the cloud sends an alarm releasing instruction to the TBOX.
The skylight/skylight curtain controller ESRM/ESSM is used for receiving a BCM command of the vehicle body controller, controlling the skylight/skylight curtain to be in an open state and keeping the air circulation in the vehicle open.
When the millimeter wave radar detects life in the vehicle, an alarm mode is triggered, the vehicle body controller controls the whole vehicle to whistle and the left and right steering lamps to alarm and remind a driver, meanwhile, the remote control module transmits the uploaded alarm information to the cloud and then pushes the alarm information to a user mobile phone APP/background customer service center to finish alarm and reminding,
and S32, judging whether the vehicle is in a state of releasing the vehicle closed state or closing the alarm mode.
If the vehicle releases the vehicle closed state or turns off the warning mode, executing step S33;
if the vehicle does not release the vehicle closure state or turn off the warning mode, step S34 is performed.
And S33, controlling the millimeter wave radar to enter a sleep state.
And S34, automatically controlling the vehicle body to be unlocked.
And judging whether the vehicle is in a closed state or not, wherein the closed state is released or not, the closed state comprises monitoring whether unlocking actions exist on four doors or whether a skylight, a car window and an air conditioner are in an open state or whether a user releases the alarm through a mobile phone APP, and if so, controlling the millimeter wave radar to stop working and enter a dormant or low-power consumption state.
If the vehicle has no response and is not in the closed alarm mode, the millimeter wave radar is controlled to send an opening request instruction to the vehicle window, the skylight and the air conditioner, the vehicle body controller controls the skylight to be opened, the ripple anti-pinch module controls the four-door vehicle window to be opened, the air conditioner controller controls the air conditioner to be in a working state, air circulation in the vehicle is kept, and therefore danger in life in the vehicle is prevented. And finally, controlling the millimeter wave radar to stop working and entering a dormant or low-power consumption state.
In summary, in the vehicle-mounted vital body monitoring and alarming method in the above embodiments of the present invention, the echo signal detected by the millimeter wave radar is collected in the preset period, when the ratio of the vital sign signals in the detection result reaches the first preset ratio, it is determined that a life exists in the period, and it is continuously determined whether the ratio of the detection result of the vital sign signals in multiple periods in the first period reaches the first preset ratio, if yes, it is determined that a life exists in the vehicle, and through the cyclic detection and determination in the periodic and first periods, the detection accuracy is improved, and the problem of the detection accuracy being reduced due to the influence of bad weather in the background technology is solved.
EXAMPLE III
Referring to fig. 4, a system of a method for monitoring and alarming a vehicle-mounted living body according to an embodiment of the present invention is shown, where the system includes:
the detection module is used for acquiring a vehicle power-off command, starting a millimeter wave radar to transmit a pulse signal to the inside of the vehicle for detection when the vehicle is detected to be in a closed state, receiving an echo signal reflected after the detection of the pulse signal, and detecting whether a vital sign signal exists in the echo signal;
the first judgment module is used for collecting detection results for multiple times every preset period, and judging that the life exists in the preset period when the ratio of the detection results of the vital sign signals in the preset period reaches a first preset ratio;
the second judgment module is used for continuously acquiring the detection result in a first time period, wherein the first time period comprises a plurality of preset periods, and whether the ratio of the detection results with vital sign signals reaches a first preset ratio or not is judged in the first time period;
and the alarm module is used for judging that the life exists in the vehicle and triggering an alarm mode if the ratio of the detection results of the vital sign signals reaches a first preset ratio.
Further, in some other optional embodiments, the system further comprises:
the third judging module is used for judging whether the ratio of the detection results with the vital sign signals reaches a second preset ratio or not if the ratio of the detection results with the vital sign signals does not reach the first preset ratio;
if the ratio of the detection results with the vital sign signals reaches a second preset ratio, continuously acquiring the detection results of a second time period, wherein the second time period comprises a plurality of preset cycles, and judging whether the ratio of the detection results with the vital sign signals reaches the second preset ratio or not in the second time period;
if yes, determining that the life exists in the vehicle, and triggering an alarm mode.
Further, in some other optional embodiments, the detection module includes:
and the vehicle state detection unit is used for judging that the interior of the vehicle is in a closed state when judging that a main driving safety belt of the vehicle is not fastened, each window and skylight in the vehicle are in a closed state or opening positions are smaller than a preset value and the vehicle door is in a closed state.
Further, in some other optional embodiments, the alarm module comprises:
and the alarm unit is used for controlling the vehicle to turn on the whistle and the double flashes, and sending the life detection condition in the vehicle to the vehicle owner or the background so as to remind the vehicle owner to process.
Further, in some other optional embodiments, the alarm module further includes:
the unlocking unit is used for judging whether the vehicle releases the closed state of the vehicle or closes the alarm mode;
if yes, controlling the millimeter wave radar to enter a dormant state;
if not, the vehicle body is automatically controlled to be released from the closed state.
Further, in some other optional embodiments, the unlocking unit includes:
and the window and skylight unlocking subunit sends an opening request instruction to the window and the skylight, and controls the skylight window to be opened according to the opening request instruction.
Further, in some other optional embodiments, the unlocking unit further includes:
and the air conditioner starting subunit is used for sending a starting request instruction to the air conditioner and controlling the air conditioner to be in a working state according to the starting request instruction so as to keep the air in the vehicle to circulate.
The functions or operation steps of the modules and units when executed are substantially the same as those of the method embodiments, and are not described herein again.
In summary, in the vehicle-mounted vital body monitoring and alarming system in the above embodiment of the present invention, the echo signal detected by the millimeter wave radar is collected in the preset period, when the ratio of the vital sign signals in the detection result reaches the first preset ratio, it is determined that a life exists in the period, and it is continuously determined whether the ratio of the detection result of the vital sign signals in a plurality of periods in the first period reaches the first preset ratio, if so, it is determined that a life exists in the vehicle, and the detection accuracy is improved through the periodic and cyclic detection determination in the first period, so as to solve the problem of the detection accuracy decrease caused by the influence of bad weather in the background technology.
Embodiments of the present invention further provide a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the vehicle-mounted living body monitoring and alarming method in the foregoing embodiments.
Example four
In another aspect, the present invention further provides an apparatus, where the system includes a memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor implements the vehicle-mounted living body monitoring and alarming method in the foregoing embodiment when executing the program. In some embodiments, the processor may be an Electronic Control Unit (ECU), a Central Processing Unit (CPU), a controller, a microcontroller, a microprocessor or other data processing chips, and is configured to run program codes stored in the memory or process data, for example, execute an access restriction program.
Wherein the memory includes at least one type of readable storage medium including flash memory, hard disks, multimedia cards, card-type memory (e.g., SD or DX memory, etc.), magnetic memory, magnetic disks, optical disks, etc. The memory may in some embodiments be an internal storage unit of the vehicle, such as a hard disk of the vehicle. The memory may also be an external storage device of the vehicle in other embodiments, such as a plug-in hard disk provided on the vehicle, a Smart Media Card (SMC), a Secure Digital (SD) card, a flash card (FlashCard), and the like. Further, the memory may also include both an internal storage unit and an external storage device of the vehicle. The memory may be used not only to store application software installed in the vehicle and various types of data, but also to temporarily store data that has been output or is to be output.
In summary, in the device in the above embodiments of the present invention, the echo signal detected by the millimeter wave radar is collected in the preset period, when the ratio of the vital sign signals existing in the detection result reaches the first preset ratio, it is determined that a life exists in the period, and whether the ratio of the detection result of the vital sign signals existing in multiple periods in the first time period reaches the first preset ratio is continuously determined, if yes, it is determined that a life exists in the vehicle.
The logic and/or steps represented in the flowcharts or otherwise described herein, e.g., an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device.
More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following technologies, which are well known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A vehicle-mounted life monitoring and alarming method is characterized by comprising the following steps:
the method comprises the steps of obtaining a vehicle power-off instruction, starting a millimeter wave radar to emit a pulse signal to the inside of a vehicle for detection when the vehicle is detected to be in a closed state, receiving an echo signal reflected after the pulse signal is detected, and detecting whether the echo signal has a vital sign signal or not;
collecting detection results for multiple times every a preset period, and judging that a life exists in the preset period when the ratio of the detection results of the vital sign signals in the preset period reaches a first preset ratio;
continuously acquiring detection results in a first time period, wherein the first time period comprises a plurality of preset cycles, and judging whether the ratio of the detection results with vital sign signals reaches a first preset ratio or not in the first time period;
if yes, determining that the life exists in the vehicle, and triggering an alarm mode.
2. The vehicle-mounted life body monitoring and alarming method according to claim 1, wherein the step of judging whether the ratio of the detection results of the vital sign signals reaches a first preset ratio further comprises:
if the ratio of the detection results with the vital sign signals does not reach the first preset ratio, judging whether the ratio of the detection results with the vital sign signals reaches a second preset ratio or not;
if the ratio of the detection results with the vital sign signals reaches a second preset ratio, continuously collecting the detection results of a second time period, wherein the second time period comprises a plurality of preset cycles, and judging whether the ratio of the detection results with the vital sign signals reaches the second preset ratio or not in the second time period;
if yes, the life in the vehicle is judged, and an alarm mode is triggered.
3. The vehicle-mounted life body monitoring and alarming method according to claim 1, wherein the closed state comprises:
and when judging that the main driving safety belt of the vehicle is not fastened, all windows and skylights in the vehicle are in a closed state or the opening positions are smaller than a preset value and the doors are in a closed state, judging that the vehicle is in the closed state.
4. The vehicle-mounted life body monitoring alarm method according to claim 1 or 2, wherein the triggering of the alarm mode comprises:
and controlling the vehicle to turn on the whistle and the double flashes, and sending the in-vehicle life detection condition to the vehicle owner or the background to remind the vehicle owner to process.
5. The vehicle-mounted life monitoring and alarming method according to claim 4, wherein the step of sending the in-vehicle life detection condition to the vehicle owner or the background to remind the vehicle owner to perform processing comprises the following steps:
judging whether the vehicle releases the closed state of the vehicle or closes the alarm mode;
if yes, controlling the millimeter wave radar to enter a dormant state;
if not, the vehicle body is automatically controlled to be released from the closed state.
6. The vehicle-mounted life body monitoring and alarming method according to claim 5, wherein the step of automatically controlling the vehicle body to be released from the closed state comprises the steps of:
and sending opening request instructions to the car windows and the skylight, and controlling the skylight to be opened according to the opening request instructions.
7. The vehicle-mounted life body monitoring and alarming method according to claim 6, wherein the step of automatically controlling the vehicle body to be released from the closed state further comprises the steps of:
and sending an opening request instruction to the air conditioner, and controlling the air conditioner to be in a working state according to the opening request instruction so as to keep the air in the vehicle to circulate.
8. A vehicle-mounted life body monitoring alarm system, the system comprising:
the detection module is used for acquiring a vehicle power-off instruction, starting a millimeter wave radar to transmit a pulse signal to the inside of the vehicle for detection when the vehicle is detected to be in a closed state, receiving an echo signal reflected after the pulse signal is detected, and detecting whether the echo signal has a vital sign signal or not;
the first judgment module is used for collecting detection results for multiple times every preset period, and judging that the life exists in the preset period when the ratio of the detection results of the vital sign signals in the preset period reaches a first preset ratio;
the second judgment module is used for continuously acquiring the detection result in a first time period, wherein the first time period comprises a plurality of preset periods, and whether the ratio of the detection results with vital sign signals reaches a first preset ratio or not is judged in the first time period;
and the alarm module is used for judging that the life exists in the vehicle and triggering an alarm mode if the ratio of the detection results of the vital sign signals reaches a first preset ratio.
9. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the on-board life monitoring alarm method according to any one of claims 1 to 7.
10. A data processing device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor when executing the program implements the in-vehicle animate body monitoring and alarm method as claimed in any one of claims 1 to 7.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117250609A (en) * | 2023-08-22 | 2023-12-19 | 南京航空航天大学 | Method for smoothing in-cabin living body detection result, storage medium and electronic equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117250609A (en) * | 2023-08-22 | 2023-12-19 | 南京航空航天大学 | Method for smoothing in-cabin living body detection result, storage medium and electronic equipment |
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