CN108257249A - A kind of assessment of risks method and automobile data recorder - Google Patents
A kind of assessment of risks method and automobile data recorder Download PDFInfo
- Publication number
- CN108257249A CN108257249A CN201711481315.2A CN201711481315A CN108257249A CN 108257249 A CN108257249 A CN 108257249A CN 201711481315 A CN201711481315 A CN 201711481315A CN 108257249 A CN108257249 A CN 108257249A
- Authority
- CN
- China
- Prior art keywords
- module
- information
- temperature
- sent
- assessment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 40
- 239000007789 gas Substances 0.000 claims description 52
- 238000004891 communication Methods 0.000 claims description 40
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 24
- 229910052760 oxygen Inorganic materials 0.000 claims description 24
- 239000001301 oxygen Substances 0.000 claims description 24
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 10
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 10
- 230000002123 temporal effect Effects 0.000 claims description 8
- 235000013399 edible fruits Nutrition 0.000 claims description 2
- 230000007613 environmental effect Effects 0.000 abstract description 15
- 238000012545 processing Methods 0.000 abstract description 11
- 238000005299 abrasion Methods 0.000 abstract description 7
- 238000003672 processing method Methods 0.000 abstract description 7
- 206010044565 Tremor Diseases 0.000 abstract description 6
- 238000012549 training Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 7
- 239000000243 solution Substances 0.000 description 7
- 238000004458 analytical method Methods 0.000 description 5
- 238000012544 monitoring process Methods 0.000 description 5
- 238000004378 air conditioning Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000003491 array Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000013507 mapping Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000012163 sequencing technique Methods 0.000 description 2
- 230000001568 sexual effect Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 206010028813 Nausea Diseases 0.000 description 1
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 208000003443 Unconsciousness Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000003637 basic solution Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000034994 death Effects 0.000 description 1
- 231100000517 death Toxicity 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 208000002173 dizziness Diseases 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 231100000518 lethal Toxicity 0.000 description 1
- 230000001665 lethal effect Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008693 nausea Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 235000015170 shellfish Nutrition 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F18/00—Pattern recognition
- G06F18/20—Analysing
- G06F18/24—Classification techniques
- G06F18/241—Classification techniques relating to the classification model, e.g. parametric or non-parametric approaches
- G06F18/2415—Classification techniques relating to the classification model, e.g. parametric or non-parametric approaches based on parametric or probabilistic models, e.g. based on likelihood ratio or false acceptance rate versus a false rejection rate
- G06F18/24155—Bayesian classification
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C5/00—Registering or indicating the working of vehicles
- G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Data Mining & Analysis (AREA)
- Artificial Intelligence (AREA)
- Probability & Statistics with Applications (AREA)
- Life Sciences & Earth Sciences (AREA)
- Emergency Management (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Bioinformatics & Computational Biology (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Evolutionary Biology (AREA)
- Evolutionary Computation (AREA)
- General Engineering & Computer Science (AREA)
- Business, Economics & Management (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The present invention provides a kind of assessment of risks method and automobile data recorders, solves the influence of the factors such as the use abrasion due to electromagnetic interference, electronic device, power supply shakiness, there may be larger noises for the environmental information acquired, although the method for existing traditional sensors data processing is widely used, but for environmental information noise that may be present, the factor of human interference, current sensing data processing method is likely to occur the situation that wrong report is misrepresented deliberately, and results in the technical issues of accuracy rate is low.
Description
Technical field
The present invention relates to electronic technology field, more particularly to a kind of assessment of risks method and automobile data recorder.
Background technology
With the continuous development of society, the motor vehicle in China and driver's quantity are continuously improved.It was counted according to 2017, China
Vehicle guaranteeding organic quantity breaks through 300,000,000, and car ownership accounts for the 66.67% of motor vehicle total amount more than 200,000,000, and motor vehicle and
The quantity of driver shows sustainable growth trend.Although automobile offers convenience to people's production and living, also occur not
Hold the security risk ignored.
After parking of automobile, due to the interior state for being in opposing seal, along with the equipment such as air-conditioning, exhaust fan stop transporting
Turn, in-vehicle air does not circulate, and under conditions of high temperature, may lead to that vehicle interior temperature is excessively high, interior oxygen supply is insufficient, harmful
Gas constantly accumulates in the car, therefore will appear a series of artificial tragic incident caused by children's delay cars.Such as on 2015
When Hai Yiming men go out to handle affairs, 19 months big daughters are locked into a few hours in the car, child is caused to remain unconscious, it is final unfortunate
It is dead；The eastern 3 years old young girl in Yishui County one in 2015 forgets nearly 10 hours in the car by kindergarten garden length, finally dies.
Another children, which is detained interior injures and deaths event, together should not be occurred completely still wilfully and constantly in the tragedy of recurrence.
In the past, be detained interior accident for a long time in case of children, be usually all by passerby or parent's discovery,
But since the light transmittance of vehicle window is relatively low, the interior state in opposing seal, the sound that cries of children is difficult to be passed from car
Go out, therefore, also there are concealments for such accident, it is more difficult to be discovered by people, victim may be made to cause the loss that can not be retrieved.
At present, China's automobile safety protector is mainly in vehicle traveling process, to endangering occupant's safety
Traffic accident and protected, and be not yet equipped at present for the protection mechanism of personnel safety in the parked rear car of automobile, this also into
For the another hidden danger of automotive safety, especially for the children that self-protection ability is insufficient, shortage saves oneself consciousness.Therefore it researches and develops
A kind of interior automobile data recorder for being detained children's assessment of risks safety guarantee is that children is prevented to be detained in the car for a long time, solve because
Being detained car for a long time leads to children's lethal the problem of causing injury, and the safety for occupant provides safeguard.
The scheme for being applied to interior delay children's monitoring, alarming existing at present mainly has：
(1) method (car delay children's safety guard system, the patent No. of driving device are opened based on vehicle window：
CN201610510600.1)：The system include car-mounted computer, for drive vehicle window open vehicle window driving device and for examining
It surveys with the presence or absence of the infrared sensor for being detained human body heat source.When detecting delay personnel, car-mounted computer control vehicle window driving
Device driving vehicle window opens preset width, realizes the ventilation and cooling of automotive interior, prevents interior delay personnel from occurring
It is unexpected.
(2) (car is detained children's safety guard system, the patent No. to the method based on embedded technology：
CN201510459711.X)：The system embedment formula technology and intelligent control technology, system is by in-vehicle information collecting unit, master control
Unit, environment inside car information reminding and alarm unit, GPS positioning device and user equipment composition.System is read using sensor
Current environment inside car information is taken, it is right when any one of interior environmental index concentration reaches preset prompting value or dangerous values
User sends out alarm, so as to prevent the interior generation for being detained children's time.
(3) (a kind of car inside alarm system based on machine vision, the patent No. of the method based on machine vision：
CN201521053822.2)：System includes installation in the car for detecting whether having CCD camera existing for passenger, Yi Jian
For detecting whether having reached the temperature sensor of safe temperature outside vehicle, judge that car is using the method for machine vision
It is no to also have passenger to be detained, and by temperature sensor senses vehicle interior temperature, obtain whether in unsafe condition, so as to prevent vehicle
The interior generation for being detained children's time.
(4) based on method (car delay occupant state identification and dangerous state control system, the patent No. for perceiving seating pressure：
CN201510779628.0)：System mainly includes：When vehicle is in stopping, the monitoring list of vehicle interior status information is obtained
Member.Monitoring unit includes the passive pressure sensor assembly of monitoring seating pressure parameter, and the module is to according to the pressure on seat
Power, judgement are the personnel there may be delay, so as to prevent the interior generation for being detained children's event.
(5) based on radar wave sensor, sound transducer method (it is a kind of it is interior be detained early warning regulating system and method,
The patent No.：CN201710450556.4)：Radar wave sensor or sound transducer have detected that biology is mobile or sends out sound
When ringing, microcontroller will send signals to GPRS/GPS emergency modules, and GPRS/GPS emergency module sends an SMS to pre-set
User, so as to prevent occupant.
(6) (the anti-forgetting security system of intelligence of the Ju Hao based on child safety seat of the method based on child safety seat
[D] Jilin University, 2017.)：The method employs one kind and is based on child safety seat, combines embedded technology, right
Child state on children's seat is detected, and informs parent by cell phone application, prevents the interior hair for being detained children's event
It is raw.
It is existing at this stage to be typically based on embedded system processing for the interior method for being detained children's monitoring, alarming
Method.During processing acquires environment inside car information, need a large amount of artificial threshold value of setting and need to design a large amount of
Artificially defined condition.
Due to the influence of the factors such as the use abrasion of electromagnetic interference, electronic device, power supply shakiness, the environmental information acquired
There may be larger noise, although the method for existing traditional sensors data processing is widely used, but needle
To environmental information noise that may be present, human interference factor, current sensing data processing method is likely to occur wrong report
Situation about misrepresenting deliberately, results in the technical issues of accuracy rate is low.
Invention content
The present invention provides a kind of assessment of risks method and automobile data recorders, solve due to electromagnetic interference, electronic device
Use abrasion, the power supply factors such as shakiness influence, there may be larger noise, existing biographies for the environmental information acquired
Although the method for system sensing data processing is widely used, but for environmental information noise that may be present, artificial
The factor of interference, current sensing data processing method are likely to occur the situation that wrong report is misrepresented deliberately, result in the low skill of accuracy rate
Art problem.
The present invention provides a kind of assessment of risks method, including：
Obtain the gas concentration information of gas sensor acquisition；
Obtain the temperature information of temperature sensor acquisition；
Obtain the infrared array temperature concentration information of infrared sensor array acquisition；
The gas concentration information, the temperature information and the infrared array temperature concentration information are input to preset shellfish
In this grader of leaf, when judging in the hole according to the result of output, warning information is sent to by communication module
The mobile terminal of connection.
Preferably, the gas concentration information for obtaining gas sensor acquisition specifically includes：
Obtain the oxygen concentration information of oxygen sensor acquisition；
Obtain the carbonomonoxide concentration information of carbon monoxide transducer acquisition.
Preferably, it is described by the gas concentration information, the temperature information and the infrared array temperature concentration information
It is input in preset Bayes classifier, when judging in the hole according to the result of output, is sent by communication module
It is further included before warning information to the mobile terminal connected：
Obtain the temporal information that clock module is sent and generated time stamp；
When judging in the hole according to the result of output, the timestamp is sent to having connected by communication module
Mobile terminal.
Preferably, it is described by the gas concentration information, the temperature information and the infrared array temperature concentration information
It is input in preset Bayes classifier, when judging in the hole according to the result of output, is sent by communication module
It is further included before warning information to the mobile terminal connected：
Obtain the GPS position information that GPS module is sent；
When judging in the hole according to the result of output, the GPS position information is sent extremely by communication module
The mobile terminal connected.
Preferably, it is described by the gas concentration information, the temperature information and the infrared array temperature concentration information
It is input in preset Bayes classifier, when judging in the hole according to the result of output, is sent by communication module
It is further included before warning information to the mobile terminal connected：
Obtain the pictorial information that photographing module is sent；
When judging in the hole according to the result of output, the pictorial information is sent to having connected by communication module
The mobile terminal connect.
The present invention provides a kind of automobile data recorder, including：
Assessment of risks module, control module, display module, power module and housing；
The display module is electrically connected with the control module；
The assessment of risks module, the control module and the display module are electrically connected respectively with the power module；
The assessment of risks module includes gas sensor, temperature sensor, infrared sensor array, communication module and master
Controller；
The gas sensor is electrically connected by modulate circuit with the master controller；
The temperature sensor is electrically connected with the master controller；
The infrared sensor array is electrically connected with the master controller；
The communication module is electrically connected with the master controller；
The master controller for obtaining the gas concentration information of gas sensor acquisition, obtains temperature sensor acquisition
Temperature information, obtain infrared sensor array acquisition infrared array temperature concentration information, by the gas concentration information, institute
It states temperature information and the infrared array temperature concentration information is input in preset Bayes classifier, when the result according to output
When judging in the hole, warning information is sent to the mobile terminal connected by communication module；
Wherein, the gas sensor, the temperature sensor and the infrared sensor array are set to the housing
Outside, the display module is set to the surface of the housing, the control module, the power module, the communication mould
Block and the master controller are packaged in the housing.
Preferably, the gas sensor includes oxygen sensor and carbon monoxide transducer；
The master controller specifically for obtaining the oxygen concentration information of oxygen sensor acquisition, obtains carbon monoxide and passes
The carbonomonoxide concentration information of sensor acquisition.
Preferably, the assessment of risks module further includes：Clock module；
The clock module is electrically connected with the master controller；
The clock module is packaged in the housing；
The master controller is additionally operable to obtain the temporal information that clock module is sent and generated time stamp, when according to output
Result when judging in the hole, the timestamp is sent to the mobile terminal connected by communication module.
Preferably, the assessment of risks module further includes：GPS module；
The GPS module is electrically connected with the master controller；
The GPS module is packaged in the housing；
The master controller is additionally operable to obtain the GPS position information that GPS module is sent, judge when according to the result of output
When in the hole, the GPS position information is sent to the mobile terminal connected by communication module.
Preferably, the assessment of risks module further includes：Photographing module；
The photographing module is set to the hull outside；
The photographing module is electrically connected with the master controller；
The master controller is additionally operable to obtain the pictorial information that photographing module is sent, at the result judgement according to output
When precarious position, the pictorial information is sent to the mobile terminal connected by communication module.
As can be seen from the above technical solutions, the present invention has the following advantages：
The present invention provides a kind of assessment of risks method, including：Obtain the gas concentration information of gas sensor acquisition；It obtains
The temperature information that temperature sensor is taken to acquire；Obtain the infrared array temperature concentration information of infrared sensor array acquisition；By institute
It states gas concentration information, the temperature information and the infrared array temperature concentration information and is input to preset Bayes classifier
In, when judging in the hole according to the result of output, warning information is sent to the movement connected by communication module
Terminal.
In the present invention, by obtaining gas concentration information, temperature information and infrared array temperature concentration information, and will be all
Information is input in trained preset Bayes classifier, is divided the data of multisensor using Bayes classifier
Analysis, the factor of influence and the human interference of cancelling noise determine precarious position or safe condition, and according to the result of state analysis
Alarm is carried out, the influence for solving the factors such as the use abrasion due to electromagnetic interference, electronic device, power supply shakiness is acquired
There may be larger noise, although the method for existing traditional sensors data processing to have obtained widely should environmental information
With, but for environmental information noise that may be present, the factor of human interference, current sensing data processing method may go out
It now reports situation about misrepresenting deliberately by mistake, results in the technical issues of accuracy rate is low.
Description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention, for those of ordinary skill in the art, without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is a kind of flow diagram of one embodiment of assessment of risks method provided by the invention；
Fig. 2 is a kind of flow diagram of another embodiment of assessment of risks method provided by the invention；
Fig. 3 is a kind of structure diagram of one embodiment of automobile data recorder provided by the invention；
Wherein, reference numeral is：
301st, assessment of risks module；302nd, control module；303rd, display module；304th, power module；3011st, gas sensing
Device；3012nd, temperature sensor；3013rd, infrared sensor array；3014th, communication module；3015th, master controller；3016th, clock
Module；3017th, GPS module；3018th, photographing module.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, an embodiment of the present invention provides a kind of one embodiment of assessment of risks method, including
101st, the gas concentration information of gas sensor acquisition is obtained；
102nd, the temperature information of temperature sensor acquisition is obtained；
103rd, the infrared array temperature concentration information of infrared sensor array acquisition is obtained；
It should be noted that step 101,102 and 103 do not have sequencing, can occur simultaneously, it can also be according to setting
Acquisition frequency occur, do not limit herein.
104th, gas concentration information, temperature information and infrared array temperature concentration information are input to preset Bayes's classification
In device, when judging in the hole according to the result of output, warning information is sent to the shifting connected by communication module
Dynamic terminal.
In the embodiment of the present invention, by obtaining gas concentration information, temperature information and infrared array temperature concentration information, and
All information are input in trained preset Bayes classifier, using Bayes classifier by the data of multisensor
It is analyzed, the factor of influence and the human interference of cancelling noise determines precarious position or safe condition, and according to state analysis
Result carry out alarm, solve use abrasion due to electromagnetic interference, electronic device, the influence of the power supply factors such as shakiness, institute
There may be larger noise, the methods of existing traditional sensors data processing although to have obtained extensively for the environmental information of acquisition
General application, but for environmental information noise that may be present, the factor of human interference, current sensing data processing method
The situation that wrong report is misrepresented deliberately is likely to occur, results in the technical issues of accuracy rate is low.
It is the explanation of one embodiment progress to a kind of assessment of risks method provided in an embodiment of the present invention above, below
A kind of another embodiment of assessment of risks method provided in an embodiment of the present invention will be illustrated.
Referring to Fig. 2, an embodiment of the present invention provides a kind of another embodiment of assessment of risks method, including：
201st, the oxygen concentration information of oxygen sensor acquisition is obtained；
It should be noted that oxygen be people living necessary to condition, due to the interior state for being in opposing seal, add
The equipment such as air-conditioning, exhaust fan shut down, and in-vehicle air does not circulate, and cause interior oxygen supply insufficient, children is caused to suffocate.
Therefore the present embodiment is added to detection object of the interior oxygen concentration as assessment of risks method.
The present embodiment uses oxygen sensor of the O2-A2 types oxygen sensor as environment inside car.The sensor can detect
Oxygen concentration range is 0%-30%, and operating temperature range is -30 DEG C to 55 DEG C, and operating humidity range is 5% to 95%RH, line
Property degree be less than 0.6ppm, the working time be more than 24 months, output signal be 80 μ A-120 μ A current signal, small, weight
Gently, it is suitble to use in this system environment.The current signal of sensor output will be by LMP91000 processing, by sensor
The current signal of output is converted to the voltage signal proportional to system voltage.
LMP91000 is a programmable analog front end, suitable for low-power consumption electrochemical sensing application, it is possible to provide sensor
The complete signal path solution between master controller.The current signal that sensor exports is converted to and is supplied with chip by the chip
The proportional voltage signal of piezoelectric voltage.LMP91000 operating voltage ranges are 2.7V to 5.25V, and total stream consumption is supported less than 10ma
Gas sensitivity in the range of 0.5nA/ppm to 9500nA/ppm is, it can be achieved that 5 μ A's to 750 μ A full scale current ranges is simple
Conversion.Therefore LMP91000 meets the use demand of system sensor.
202nd, the carbonomonoxide concentration information of carbon monoxide transducer acquisition is obtained；
It should be noted that the state of opposing seal, along with the equipment such as air-conditioning, exhaust fan shut down, in-vehicle air
It does not circulate, along with vehicle exhaust pours in down a chimney so that the poisonous fume concentration of car accumulation increases, and causes interior delay children's head
Dizzy, nausea symptom, so we introduce whether carbon monoxide is in the important of unsafe condition as qualitative interior delay children
Index.
The present embodiment monitors the carbonomonoxide concentration of environment inside car using CO-D4 types carbon monoxide transducer.The sensor
Detectable oxygen concentration range is 0ppm-1000pm, and sensitivity 30-48Na/ppm, operating temperature range is -30 DEG C to 55 DEG C,
Operating humidity range is 5% to 95%RH, and the linearity is less than 0.6ppm, and the working time is more than 24 months, and output signal is 80 μ A-
The current signal of 120 μ A, it is small, light-weight, it is suitble to use in this system environment.The current signal of sensor output will be logical
LMP91000 processing is crossed, the current signal that sensor exports is converted into the voltage signal proportional to system voltage, then
Voltage signal is transmitted in main controller.
203rd, the temperature information of temperature sensor acquisition is obtained；
It should be noted that in the present embodiment, the DS18B20 temperature sensor collecting vehicle inner ring of PR-35 encapsulation is employed
Border temperature.DS18B20 temperature sensors have voltage range wide, can work in 3.0~5.5V voltage ranges；Measurement accuracy
Height, Measurement Resolution reach as high as 12；Circuit is simple, is increased without any peripheral components；The characteristics of small, low in energy consumption.
It uses 1-wire digital temperature sensor, it is only necessary to 1 I/O mouthfuls, its internal register can be written and read.
204th, the infrared array temperature concentration information of infrared sensor array acquisition is obtained；
It should be noted that in the present embodiment, by being examined using AMG8831 infrared sensor arrays to human body
Survey, the sensor by measure the temperature in interior region judge interior region with the presence or absence of children and children's quantity number,
It is detained children so as to which information whether there is.
It is internal containing 8*8 infrared temperature detector for AMG8831 infrared sensor arrays, current region can be carried out red
Outer temperature detection.Sensor output is exported for digital signal, and operating voltage 3.3v or 5v can work in -20 DEG C to 80 DEG C.
System adds Fresnel infrared induction lens on a sensor, and the investigative range of sensor is made to cover to vehicle, and can pass through
The infrared temperature information of the two-dimentional 8*8 receptive fields of sensor internal judges interior infrared temperature variation information being converted to vehicle
Interior personnel amount and approximate location.
205th, the temporal information that clock module is sent and generated time stamp are obtained；
It should be noted that in the present embodiment, whether it is detained children in dangerous one by the use of the residence time as differentiation
A important parameter, therefore accurate clock module is selected to provide the accurate time.Temporal information is carried by DS12C887 clock chips
For inside chip has rechargeable lithium battery and temperature-compensation circuit, ensure that the temporal information accuracy of output.
206th, the GPS position information that GPS module is sent is obtained；
It should be noted that in the present embodiment, it, can be same to the real-time geographical locations of vehicle by GPS module function of search
Step record.
207th, the pictorial information that photographing module is sent is obtained；
It should be noted that in the present embodiment, by the interior photo of photographing module shooting, interior figure in real time can be obtained
Piece information.
It should be noted that step 201 to 207 without sequencing, can occur simultaneously, can also obtaining according to setting
Frequency is taken, is not limited herein.
208th, gas concentration information, temperature information and infrared array temperature concentration information are input to preset Bayes's classification
In device, when judging in the hole according to the result of output, by communication module send warning information, timestamp, GPS
Confidence ceases and pictorial information to the mobile terminal connected.
It should be noted that in the present embodiment, when existing, when being detained children's situation, the temperature for obtaining each sensor acquisition is believed
Breath, oxygen concentration information, carbonomonoxide concentration information and infrared array temperature concentration information are input to trained preset
In Bayes classifier.Bayes classifier can automatically be merged the data that transmission is come in automatically, after training
After model, output result is subjected to two classification, judges currently to be detained children with the presence or absence of danger.
Most essential steps are to analyze the data of multisensor in the process, when obtaining interior delay children
In unsafe condition, the basic ideas that the present embodiment is realized are to regard the problem as a classification problem, and problem is carried out
Two classification, are divided into dangerous situation and security situation.
For mathematical angle, classification problem can be defined as follows：
Known collection：C={ y1, y2..., ynAnd I={ x1, x2..., xm... }, determine mapping ruler y=f (x),
Cause arbitrary xiOne and only one y of ∈ Ij∈ C cause yj=f (xi) set up.Wherein C is called category set, wherein each member
Element is a classification, and I is called item set, and wherein each element is an item to be sorted, and f is called grader.Sorting algorithm
Task be exactly structural classification device f.
This system is analyzed the data of multisensor using Bayes classifier, and data finally are divided into danger automatically
Situation and security situation.The principle of classification of Bayes classifier is the prior probability by certain object, utilizes Bayesian formula meter
Its posterior probability is calculated, i.e. the object belongs to certain a kind of probability, selects the class with maximum a posteriori probability as the object institute
The class of category.This kind of algorithm is referred to as Bayes's classification based on Bayes' theorem.
Under the premise of P (A | B) represents that event B has occurred and that, probability that event A occurs is called event B and lower event occurs
The conditional probability of A.Its basic solution formula is：
Therefore Bayes's Bayes' theorem can be obtained is：
And this system with the idea basis of Bayes classifier be：For the item to be sorted provided, solve at this
The probability that each classification occurs under conditions of appearance, which is maximum, is considered as which classification this item to be sorted belongs to.Bayes point
The formal definition of class is as follows：
1st, x={ a are set1, a2..., amIt is an item to be sorted, and the characteristic attribute that each a is x.
2nd, there are category set C={ y1, y2..., yn}。
3rd, P (y are calculated1| x), P (y2| x) ..., P (yn|x)。
If the 4th, P (yk| x)=max { P (y1| x), P (y2| x) ..., P (yn| x) }, then x ∈ yk。
So present key is how to calculate each conditional probability in the 3rd step.We can do so：
1st, the item set to be sorted classified known to one is found, this set is called training sample set.
2nd, statistics obtains the conditional probability estimation of each characteristic attribute under of all categories.I.e.：P(a1|y1), P (a2|
y1) ..., P (am|y1)；P(a1|y2), P (a2|y2) ..., P (am|y2)；...；P(a1|yn), P (a2|yn) ..., P (am|yn)
If the 3, each characteristic attribute is conditional sampling, following derivation is had according to Bayes' theorem：
Because denominator is constant for all categories, as long as because molecule maximization all may be used by we.Again because of each feature
Attribute is conditional sampling, so having：
Above it can be seen that Bayes's classification can be divided into three phases：
First stage --- preparation stage, the task in this stage are to do necessary preparation for Bayes's classification, main
It is determining characteristic attribute, and suitably being divided to each characteristic attribute as the case may be to work, then by manually to one
Part item to be sorted is classified, and forms training sample set.The input in this stage is all data to be sorted, and output is special
Levy attribute and training sample.This stage is the stage for uniquely needing to be accomplished manually in entire Naive Bayes Classification, quality
Whole process will be had a major impact, the quality of grader is largely divided by characteristic attribute, characteristic attribute and training sample
This quality determines.
Second stage --- classifier training stage, the task in this stage are exactly to generate grader, and groundwork is meter
It calculates the frequency of occurrences and each characteristic attribute of each classification in training sample and divides and the conditional probability of each classification is estimated, and
Result is recorded.Its input is characteristic attribute and training sample, and output is grader.This stage is the mechanical sexual stage, according to
Formula previously discussed can be calculated completion automatically by program.
Phase III --- the application stage.The task in this stage is to treat sorting item using grader to classify,
Input is grader and item to be sorted, and output is the mapping relations of item to be sorted and classification.This stage is also the mechanical sexual stage,
It is completed by program.
In the embodiment of the present invention, by obtaining gas concentration information, temperature information and infrared array temperature concentration information, and
All information are input in trained preset Bayes classifier, using Bayes classifier by the data of multisensor
It is analyzed, the factor of influence and the human interference of cancelling noise determines precarious position or safe condition, and according to state analysis
Result carry out alarm, solve use abrasion due to electromagnetic interference, electronic device, the influence of the power supply factors such as shakiness, institute
There may be larger noise, the methods of existing traditional sensors data processing although to have obtained extensively for the environmental information of acquisition
General application, but for environmental information noise that may be present, the factor of human interference, current sensing data processing method
The situation that wrong report is misrepresented deliberately is likely to occur, results in the technical issues of accuracy rate is low.
Referring to Fig. 3, an embodiment of the present invention provides a kind of one embodiment of automobile data recorder, including：
Assessment of risks module 301, control module 302, display module 303, power module 304 and housing；
Display module 303 is electrically connected with control module 302；
Assessment of risks module 301, control module 302 and display module 303 are electrically connected respectively with power module 304；
Assessment of risks module 301 include gas sensor 3011, temperature sensor 3012, infrared sensor array 3013,
Communication module 3014 and master controller 3015；
Gas sensor 3011 is electrically connected by modulate circuit with master controller 3015；
Temperature sensor 3012 is electrically connected with master controller 3015；
Infrared sensor array 3013 is electrically connected with master controller 3015；
Communication module 3014 is electrically connected with master controller 3015；
Master controller 3015 for obtaining the gas concentration information of the acquisition of gas sensor 3011, obtains temperature sensor
The temperature information of 3012 acquisitions obtains the infrared array temperature concentration information that infrared sensor array 3013 acquires, and gas is dense
Degree information, temperature information and infrared array temperature concentration information are input in preset Bayes classifier, when the knot according to output
When fruit judges in the hole, warning information is sent to the mobile terminal connected by communication module 3014；
Wherein, gas sensor 3011, temperature sensor 3012 and infrared sensor array 3013 are set to the outer of housing
Portion, display module 303 are set to the surface of housing, control module 302, power module 304, communication module 3014 and master controller
3015 are packaged in housing.
Further, gas sensor 3011 includes oxygen sensor 30111 and carbon monoxide transducer 30112；
Master controller 3015, the oxygen concentration information acquired specifically for obtaining oxygen sensor 30111 obtain an oxidation
The carbonomonoxide concentration information that carbon sensor 30112 acquires.
Further, assessment of risks module 301 further includes：Clock module 3016；
Clock module 3016 is electrically connected with master controller 3015；
Clock module 3016 is packaged in housing；
Master controller 3015 is additionally operable to obtain the temporal information that clock module 3016 is sent and generated time stamp, works as basis
When the result of output judges in the hole, stabbed by 3014 sending time of communication module to the mobile terminal connected.
Further, assessment of risks module further includes：GPS module 3017；
GPS module 3017 is electrically connected with master controller 3015；
GPS module 3017 is packaged in housing；
Master controller 3015 is additionally operable to obtain the GPS position information that GPS module 3017 is sent, when the result according to output
When judging in the hole, GPS position information is sent to the mobile terminal connected by communication module 3014.
Further, assessment of risks module further includes：Photographing module 3018；
Photographing module 3018 is set to hull outside；
Photographing module 3018 is electrically connected with master controller 3015；
Master controller 3015 is additionally operable to obtain the pictorial information that photographing module 3018 is sent, when the result according to output is sentenced
When disconnected in the hole, pictorial information is sent to the mobile terminal connected by communication module 3014.
In the embodiment of the present invention, master controller 3015 by obtain gas sensor 3011 send gas concentration information,
The infrared array temperature concentration information that the temperature information and infrared sensor array 3013 that temperature sensor 3012 is sent are sent, and
All information are input in trained preset Bayes classifier, using Bayes classifier by the data of multisensor
It is analyzed, the factor of influence and the human interference of cancelling noise determines precarious position or safe condition, and according to state analysis
Result alarm is carried out by communication module 3014, solve since use abrasion, the power supply of electromagnetic interference, electronic device are unstable
Etc. factors influence, the environmental information acquired there may be larger noise, existing traditional sensors data processing
Although method is widely used, but for environmental information noise that may be present, the factor of human interference, current biography
Sensor data processing method is likely to occur the situation that wrong report is misrepresented deliberately, and results in the technical issues of accuracy rate is low.
The above, the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to before
Embodiment is stated the present invention is described in detail, it will be understood by those of ordinary skill in the art that：It still can be to preceding
The technical solution recorded in each embodiment is stated to modify or carry out equivalent replacement to which part technical characteristic；And these
Modification is replaced, the spirit and scope for various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution.
Claims (10)
- A kind of 1. assessment of risks method, which is characterized in that including：Obtain the gas concentration information of gas sensor acquisition；Obtain the temperature information of temperature sensor acquisition；Obtain the infrared array temperature concentration information of infrared sensor array acquisition；The gas concentration information, the temperature information and the infrared array temperature concentration information are input to preset Bayes In grader, when judging in the hole according to the result of output, warning information is sent to having connected by communication module Mobile terminal.
- 2. assessment of risks method according to claim 1, which is characterized in that the gas for obtaining gas sensor acquisition Concentration information specifically includes：Obtain the oxygen concentration information of oxygen sensor acquisition；Obtain the carbonomonoxide concentration information of carbon monoxide transducer acquisition.
- 3. assessment of risks method according to claim 1, which is characterized in that it is described by the gas concentration information, it is described Temperature information and the infrared array temperature concentration information are input in preset Bayes classifier, when the result according to output is sentenced When disconnected in the hole, further included before sending warning information to the mobile terminal connected by communication module：Obtain the temporal information that clock module is sent and generated time stamp；When judging in the hole according to the result of output, the timestamp is sent to the shifting connected by communication module Dynamic terminal.
- 4. assessment of risks method according to claim 1, which is characterized in that it is described by the gas concentration information, it is described Temperature information and the infrared array temperature concentration information are input in preset Bayes classifier, when the result according to output is sentenced When disconnected in the hole, further included before sending warning information to the mobile terminal connected by communication module：Obtain the GPS position information that GPS module is sent；When judging in the hole according to the result of output, the GPS position information is sent to having connected by communication module The mobile terminal connect.
- 5. assessment of risks method according to claim 1, which is characterized in that it is described by the gas concentration information, it is described Temperature information and the infrared array temperature concentration information are input in preset Bayes classifier, when the result according to output is sentenced When disconnected in the hole, further included before sending warning information to the mobile terminal connected by communication module：Obtain the pictorial information that photographing module is sent；When judging in the hole according to the result of output, the pictorial information is sent to having connected by communication module Mobile terminal.
- 6. a kind of automobile data recorder, which is characterized in that including：Assessment of risks module, control module, display module, power module And housing；The display module is electrically connected with the control module；The assessment of risks module, the control module and the display module are electrically connected respectively with the power module；The assessment of risks module includes gas sensor, temperature sensor, infrared sensor array, communication module and main control Device；The gas sensor is electrically connected by modulate circuit with the master controller；The temperature sensor is electrically connected with the master controller；The infrared sensor array is electrically connected with the master controller；The communication module is electrically connected with the master controller；The master controller for obtaining the gas concentration information of gas sensor acquisition, obtains the temperature of temperature sensor acquisition Information is spent, the infrared array temperature concentration information of infrared sensor array acquisition is obtained, by the gas concentration information, the temperature Degree information and the infrared array temperature concentration information are input in preset Bayes classifier, are judged when according to the result of output When in the hole, warning information is sent to the mobile terminal connected by communication module；Wherein, the gas sensor, the temperature sensor and the infrared sensor array are set to the outer of the housing Portion, the display module are set to the surface of the housing, the control module, the power module, the communication module and The master controller is packaged in the housing.
- 7. automobile data recorder according to claim 6, which is characterized in that the gas sensor include oxygen sensor and Carbon monoxide transducer；The master controller specifically for obtaining the oxygen concentration information of oxygen sensor acquisition, obtains carbon monoxide transducer The carbonomonoxide concentration information of acquisition.
- 8. automobile data recorder according to claim 6, which is characterized in that the assessment of risks module further includes：Clock mould Block；The clock module is electrically connected with the master controller；The clock module is packaged in the housing；The master controller is additionally operable to obtain the temporal information that clock module is sent and generated time stamp, when the knot according to output When fruit judges in the hole, the timestamp is sent to the mobile terminal connected by communication module.
- 9. automobile data recorder according to claim 6, which is characterized in that the assessment of risks module further includes：GPS moulds Block；The GPS module is electrically connected with the master controller；The GPS module is packaged in the housing；The master controller is additionally operable to obtain the GPS position information that GPS module is sent, is in when according to the judgement of the result of output During precarious position, the GPS position information is sent to the mobile terminal connected by communication module.
- 10. according to claim automobile data recorder according to claim 6, which is characterized in that the assessment of risks module It further includes：Photographing module；The photographing module is electrically connected with the master controller；The photographing module is set to the hull outside；The master controller is additionally operable to obtain the pictorial information that photographing module is sent, judge when according to the result of output in danger During dangerous state, the pictorial information is sent to the mobile terminal connected by communication module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711481315.2A CN108257249A (en) | 2017-12-29 | 2017-12-29 | A kind of assessment of risks method and automobile data recorder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711481315.2A CN108257249A (en) | 2017-12-29 | 2017-12-29 | A kind of assessment of risks method and automobile data recorder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108257249A true CN108257249A (en) | 2018-07-06 |
Family
ID=62724642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711481315.2A Pending CN108257249A (en) | 2017-12-29 | 2017-12-29 | A kind of assessment of risks method and automobile data recorder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108257249A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111626905A (en) * | 2020-05-26 | 2020-09-04 | 深圳技术大学 | Passenger safety monitoring method and device and computer readable storage medium |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102582560A (en) * | 2012-02-22 | 2012-07-18 | 苏州卡泰克电子科技有限公司 | Self-adaptive infrared system for monitoring internal environment of automobile |
| CN102622861A (en) * | 2012-03-26 | 2012-08-01 | 陈寒冰 | Security monitoring alarm system based on geographical position and method therefor |
| CN102752582A (en) * | 2012-06-19 | 2012-10-24 | 杭州海康威视系统技术有限公司 | Intelligent video analysis system and method |
| JP2013106327A (en) * | 2011-11-16 | 2013-05-30 | Canon Inc | Imaging apparatus, information processing apparatus, control method for imaging apparatus and information processing apparatus, noise removal method and program |
| CN103927846A (en) * | 2014-03-26 | 2014-07-16 | 南京理工大学 | Automatic car alarm based on in-car temperature and gas detection |
| CN104054118A (en) * | 2012-01-13 | 2014-09-17 | 脉冲函数F6有限公司 | Telematics system with 3D inertial sensors |
| CN104185893A (en) * | 2012-03-26 | 2014-12-03 | 东京毅力科创株式会社 | System for monitoring failure of substrate processing apparatus, and method for monitoring failure of substrate processing apparatus |
| CN104517400A (en) * | 2013-09-27 | 2015-04-15 | 湖州沃武网络科技有限公司 | 3G network based in-car heatstroke-prevention monitoring alarm method and system |
| CN204463371U (en) * | 2015-04-01 | 2015-07-08 | 中国石油大学(华东) | Automobile stayer safety prompt function and protection system |
| CN104999987A (en) * | 2015-07-30 | 2015-10-28 | 华东交通大学 | Security defending system for children left in vehicle |
| CN206421553U (en) * | 2017-01-20 | 2017-08-18 | 孙麒然 | Passenger based on Internet of Things is detained in-car monitoring and early warning managing and control system |
| CN207758696U (en) * | 2017-12-29 | 2018-08-24 | 广州视声光电有限公司 | A kind of automobile data recorder |
-
2017
- 2017-12-29 CN CN201711481315.2A patent/CN108257249A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013106327A (en) * | 2011-11-16 | 2013-05-30 | Canon Inc | Imaging apparatus, information processing apparatus, control method for imaging apparatus and information processing apparatus, noise removal method and program |
| CN104054118A (en) * | 2012-01-13 | 2014-09-17 | 脉冲函数F6有限公司 | Telematics system with 3D inertial sensors |
| CN102582560A (en) * | 2012-02-22 | 2012-07-18 | 苏州卡泰克电子科技有限公司 | Self-adaptive infrared system for monitoring internal environment of automobile |
| CN102622861A (en) * | 2012-03-26 | 2012-08-01 | 陈寒冰 | Security monitoring alarm system based on geographical position and method therefor |
| CN104185893A (en) * | 2012-03-26 | 2014-12-03 | 东京毅力科创株式会社 | System for monitoring failure of substrate processing apparatus, and method for monitoring failure of substrate processing apparatus |
| CN102752582A (en) * | 2012-06-19 | 2012-10-24 | 杭州海康威视系统技术有限公司 | Intelligent video analysis system and method |
| CN104517400A (en) * | 2013-09-27 | 2015-04-15 | 湖州沃武网络科技有限公司 | 3G network based in-car heatstroke-prevention monitoring alarm method and system |
| CN103927846A (en) * | 2014-03-26 | 2014-07-16 | 南京理工大学 | Automatic car alarm based on in-car temperature and gas detection |
| CN204463371U (en) * | 2015-04-01 | 2015-07-08 | 中国石油大学(华东) | Automobile stayer safety prompt function and protection system |
| CN104999987A (en) * | 2015-07-30 | 2015-10-28 | 华东交通大学 | Security defending system for children left in vehicle |
| CN206421553U (en) * | 2017-01-20 | 2017-08-18 | 孙麒然 | Passenger based on Internet of Things is detained in-car monitoring and early warning managing and control system |
| CN207758696U (en) * | 2017-12-29 | 2018-08-24 | 广州视声光电有限公司 | A kind of automobile data recorder |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111626905A (en) * | 2020-05-26 | 2020-09-04 | 深圳技术大学 | Passenger safety monitoring method and device and computer readable storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11012667B1 (en) | Vehicle monitoring | |
| CN105389944A (en) | Early warning and automatic rescue system for kid detained in car | |
| CN105438065B (en) | The anti-in-car autoalarm for being detained children's asphyxia | |
| CN208498370U (en) | Fatigue driving based on steering wheel detects prior-warning device | |
| CN209087121U (en) | A kind of environment inside car safety alarm device | |
| CN110242154A (en) | A kind of vehicle-mounted Ethernet Intelligent car window control system and its control method | |
| CN202562902U (en) | Poisonous and harmful gas detection system of cab | |
| CN106846725A (en) | A kind of in-car delay safety pre-warning system | |
| CN203485826U (en) | Intelligent passenger-car overloading monitoring system | |
| CN104773074B (en) | A kind of intelligent vehicle-carried alcohol measure and control device and investigating method based on duplicate protection | |
| CN207758696U (en) | A kind of automobile data recorder | |
| CN106627362A (en) | In-vehicle emergency alarm system and method | |
| John et al. | Real time embedded system for accident prevention | |
| CN205594674U (en) | Intelligence passenger train detection device | |
| CN113370786A (en) | Vehicle-mounted drunk driving comprehensive detection system for unit vehicle based on multi-source information fusion | |
| CN107123220A (en) | Apparatus and method for the security monitoring of the interior space | |
| CN109658662A (en) | Automobile monitoring alarm based on car networking | |
| CN205997840U (en) | Hot environment car door is from open system | |
| CN114216941B (en) | Drunk driving prevention alarm system based on composite array sensor | |
| CN108257249A (en) | A kind of assessment of risks method and automobile data recorder | |
| CN109383516A (en) | A kind of anomaly analysis behavioral value system based on user behavior analysis | |
| CN103318084A (en) | Intelligent coach-overload monitoring system | |
| Prasad et al. | Drowsiness and alcohol detection with engine locking | |
| CN111775878A (en) | Intelligent in-vehicle accident prevention system based on number of people in vehicle | |
| CN205334745U (en) | New energy automobile reminding device that traveles |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: Room 501, 6 # Workshop, No. 9, Lanyu 4th Street, Guangzhou Economic and Technological Development Zone, Guangdong 510000 Applicant after: Guangzhou visual sound health technology Co.,Ltd. Address before: Room 501, 6 # Workshop, No. 9, Lanyu 4th Street, Guangzhou Economic and Technological Development Zone, Guangdong 510000 Applicant before: Axol Health Technology (Guangzhou) Co.,Ltd. Address after: Room 501, 6 # Workshop, No. 9, Lanyu 4th Street, Guangzhou Economic and Technological Development Zone, Guangdong 510000 Applicant after: Guangzhou Shisheng Health Technology Co.,Ltd. Address before: Room 501, 6 # Workshop, No. 9, Lanyu 4th Street, Guangzhou Economic and Technological Development Zone, Guangdong 510000 Applicant before: Guangzhou visual sound health technology Co.,Ltd. Address after: Room 501, 6 # Workshop, No. 9, Lanyu 4th Street, Guangzhou Economic and Technological Development Zone, Guangdong 510000 Applicant after: Axol Health Technology (Guangzhou) Co.,Ltd. Address before: Room 501, 6 # Workshop, No. 9, Lanyu Fourth Street, Guangzhou Economic and Technological Development Zone, Guangdong Province, 510730 Applicant before: GUANGZHOU GVS PHOTOELECTRIC Co.,Ltd. |
|
| CB02 | Change of applicant information |