CN112706716A - Automobile remote child protection system - Google Patents
Automobile remote child protection system Download PDFInfo
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- CN112706716A CN112706716A CN202011499599.XA CN202011499599A CN112706716A CN 112706716 A CN112706716 A CN 112706716A CN 202011499599 A CN202011499599 A CN 202011499599A CN 112706716 A CN112706716 A CN 112706716A
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- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 166
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 83
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 79
- 239000001569 carbon dioxide Substances 0.000 claims description 79
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 79
- 238000012545 processing Methods 0.000 claims description 51
- 230000008859 change Effects 0.000 claims description 46
- 238000001514 detection method Methods 0.000 claims description 46
- 238000013480 data collection Methods 0.000 claims description 28
- 230000006698 induction Effects 0.000 claims description 16
- 239000007784 solid electrolyte Substances 0.000 claims description 16
- 238000004891 communication Methods 0.000 claims description 9
- 230000008030 elimination Effects 0.000 claims description 9
- 238000003379 elimination reaction Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 abstract description 13
- 238000010586 diagram Methods 0.000 description 10
- 230000009286 beneficial effect Effects 0.000 description 7
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 2
- 238000003411 electrode reaction Methods 0.000 description 2
- 238000002329 infrared spectrum Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 239000003570 air Substances 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical group [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 description 1
- 229910052808 lithium carbonate Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R21/015—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting the presence or position of passengers, passenger seats or child seats, and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
- B60R21/01512—Passenger detection systems
- B60R21/0153—Passenger detection systems using field detection presence sensors
- B60R21/01534—Passenger detection systems using field detection presence sensors using electromagneticwaves, e.g. infrared
-
- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention provides an automobile remote child protection system which is specially designed for monitoring the life safety of children in an automobile, the device is provided with a gas sensor module, a temperature sensor module and an infrared sensing module which are respectively used for detecting harmful gas concentration information, real-time temperature information and child existence state information of the internal environment of the automobile, a main control module is used for determining the child safety state information of the internal environment of the automobile according to the harmful gas concentration information, the real-time temperature information and the child existence state information, and finally, the device can carry out reliable quantitative judgment on the safety threat of the internal environment of the automobile to children through the alarm operation of a corresponding mode of an alarm module, so as to timely and accurately remind whether the internal environment of the automobile has the risk of life safety accidents, therefore, the children in the automobile can be conveniently and timely rescued, and the automation and intelligence degree of automobile remote monitoring can be improved.
Description
Technical Field
The invention relates to the technical field of intelligent monitoring of automobiles, in particular to an automobile remote child protection system.
Background
With the increasing popularity of automobiles, more and more families can choose the travel mode of self-driving. However, a part of parents carelessly and carelessly leave children in the automobile alone, the indoor temperature and the indoor carbon dioxide concentration of the closed automobile internal environment continuously rise, particularly in high-temperature weather, the rising speed of the indoor temperature and the indoor carbon dioxide concentration is remarkably increased, and in addition, when the automobile is in a starting state, the carbon monoxide concentration of the closed automobile internal environment also continuously increases, which seriously threatens the life safety of the children. The existing automobile can not comprehensively detect the existence state, harmful gas state and temperature state of personnel in the internal environment of the automobile and can not give an alarm to inform timely, so that the rescue opportunity for children in the automobile is delayed, and the automation and intelligence degree of automobile remote monitoring are greatly reduced.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides an automobile remote child protection system which comprises a main control module, a gas sensor module, a temperature sensor module, an infrared sensing module and an alarm module; the gas sensor module is used for detecting harmful gas concentration information of the internal environment of the automobile; the temperature sensor module is used for detecting real-time temperature information of the internal environment of the automobile; the infrared sensing module is used for detecting the personnel existence state information of the internal environment of the automobile; the main control module is used for determining the safety state information of the personnel in the internal environment of the automobile according to the concentration information of the harmful gas, the real-time temperature information and the existence state information of the personnel; the alarm module is used for carrying out alarm operation in a corresponding mode according to the personnel safety state information; it can be seen that the automobile remote child protection system is specially designed for monitoring the life safety of children in the automobile, the device is provided with a gas sensor module, a temperature sensor module and an infrared sensing module which are respectively used for detecting harmful gas concentration information, real-time temperature information and child existence state information of the internal environment of the automobile, then a main control module is used for determining the child safety state information of the internal environment of the automobile according to the harmful gas concentration information, the real-time temperature information and the child existence state information, and finally the alarm operation is carried out in a corresponding mode through an alarm module, so that the reliable quantitative judgment can be carried out on the safety threat of the internal environment of the automobile to children, so as to timely and accurately remind whether the internal environment of the automobile has the risk of life safety accidents, therefore, the children in the automobile can be conveniently and timely rescued, and the automation and intelligence degree of automobile remote monitoring can be improved.
The invention provides an automobile remote child protection system which is characterized by comprising a main control module, a gas sensor module, a temperature sensor module, an infrared sensing module and an alarm module, wherein the gas sensor module is arranged on the main control module; wherein,
the gas sensor module is used for detecting harmful gas concentration information of the internal environment of the automobile;
the temperature sensor module is used for detecting real-time temperature information of the internal environment of the automobile;
the infrared sensing module is used for detecting the personnel existence state information of the internal environment of the automobile;
the main control module is used for determining the safety state information of the personnel in the internal environment of the automobile according to the concentration information of the harmful gas, the real-time temperature information and the personnel existence state information;
the alarm module is used for carrying out alarm operation in a corresponding mode according to the personnel safety state information;
further, the gas sensor module comprises a plurality of carbon dioxide sensors, a plurality of carbon monoxide sensors and a gas detection data collecting and processing device; wherein,
the carbon dioxide sensors are arranged at different positions of the internal environment of the automobile in a distributed mode, so that carbon dioxide concentration data at the corresponding positions are detected;
the carbon monoxide sensors are arranged at different positions of the internal environment of the automobile in a distributed mode, so that carbon monoxide concentration data at the corresponding positions are detected;
the gas detection data collecting and processing device is used for collecting and processing carbon dioxide concentration data from different carbon dioxide sensors so as to obtain a real-time carbon dioxide concentration value and/or a carbon dioxide concentration change speed of the internal environment of the automobile;
the gas detection data collecting and processing device is used for collecting and processing carbon monoxide concentration data from different carbon monoxide sensors so as to obtain a real-time carbon monoxide concentration value and/or a carbon monoxide concentration change speed of the internal environment of the automobile;
further, the temperature sensor module comprises a plurality of temperature sensors and a temperature detection data collecting and processing device; wherein,
the temperature sensors are arranged at different positions of the internal environment of the automobile in a distributed mode so as to detect temperature data at the corresponding positions;
the temperature detection data collecting and processing device is used for collecting and processing temperature data from different temperature sensors so as to obtain a real-time temperature value and/or a temperature change speed of the internal environment of the automobile;
further, the infrared sensing module comprises an infrared sensing sensor and an infrared sensing data collecting and processing module; wherein,
the infrared induction sensor is used for detecting thermal infrared distribution data of the internal environment of the automobile;
the infrared induction data collection and processing module is used for collecting and processing the thermal infrared distribution data so as to obtain the number of persons in the internal environment of the automobile and/or the size of the individual persons;
further, the automobile remote child protection system also comprises a power module, a display module and a communication module; wherein,
the power supply module is used for supplying power to the gas sensor module, the temperature sensor module and the infrared sensing module;
the display module is used for being connected with the main control module and displaying at least one of the harmful gas concentration information, the real-time temperature information and the personnel existence state information;
the communication module is used for realizing data communication between the main control module and the alarm module;
further, the carbon dioxide sensor is a solid electrolyte sensor;
the detection of the carbon dioxide concentration data by the solid electrolyte sensor specifically comprises the following steps:
when the solid electrolyte sensor is positioned in a carbon dioxide atmosphere, acquiring a potential difference between a sensitive electrode and a reference electrode of the solid electrolyte sensor, and determining the carbon dioxide concentration data according to the potential difference and the Nernst equation;
the step of acquiring the real-time carbon dioxide concentration value and/or the carbon dioxide concentration change speed of the internal environment of the automobile by the gas detection data collection and processor specifically comprises the following steps:
the gas detection data collection and processor collects carbon dioxide concentration data from different carbon dioxide sensors, and performs dead-point data elimination processing and data average calculation processing on all the carbon dioxide concentration data to obtain the real-time carbon dioxide concentration value;
and/or the presence of a gas in the gas,
the gas detection data collection and processor collects carbon dioxide concentration data from different carbon dioxide sensors and determines the average change value of the carbon dioxide concentration data along with time, so as to obtain the change speed of the carbon dioxide concentration;
further, the carbon monoxide sensor is an MQ-2 gas sensor;
the method for detecting and obtaining the carbon monoxide concentration data by the MQ-2 gas sensor specifically comprises the following steps:
when the MQ-2 gas sensor is positioned in a carbon monoxide atmosphere, acquiring output voltage and loop voltage corresponding to the MQ-2 gas sensor, and determining carbon monoxide concentration data according to the output voltage, the loop voltage and a preset empirical formula;
the step of acquiring the real-time carbon monoxide concentration value and/or the carbon monoxide concentration change speed of the internal environment of the automobile by the gas detection data collection and processor specifically comprises the following steps:
the gas detection data collection and processor collects carbon monoxide concentration data from different carbon monoxide sensors, and performs dead-point data elimination processing and data average calculation processing on all the carbon monoxide concentration data to obtain the real-time carbon monoxide concentration value;
and/or the presence of a gas in the gas,
the gas detection data collection and processor collects carbon monoxide concentration data from different carbon monoxide sensors and determines the average change value of the carbon monoxide concentration data along with time, so as to obtain the change speed of the carbon monoxide concentration;
further, the temperature sensor temperature is a DSI8B20 temperature sensor;
the step of acquiring the real-time temperature value and/or the temperature change speed of the internal environment of the automobile by the temperature detection data collection and processor specifically comprises the following steps:
the temperature detection data collection and processor collects temperature data from different temperature sensors, and performs dead point data elimination processing and data average calculation processing on the temperature data so as to obtain the real-time temperature value;
and/or the presence of a gas in the gas,
the temperature detection data collection and processor collects temperature data from different temperature sensors and determines the average change value of the temperature data along with time, so as to obtain the temperature change speed;
further, the main control module determines that the safety state information of the personnel in the automobile internal environment specifically comprises the following steps according to the harmful gas concentration information, the real-time temperature information and the personnel existence state information:
it is determined whether the following conditions (1) and (2) hold:
(1) whether the number of the persons is smaller than a preset number threshold value and/or whether the size of the persons is smaller than a preset individual height threshold value is determined;
(2) determining whether any one of the real-time carbon dioxide concentration value, the carbon dioxide concentration change speed, the real-time carbon monoxide concentration value, the carbon monoxide concentration change speed, the real-time temperature value and the temperature change speed exceeds a respective corresponding preset threshold value;
if the condition (1) or the condition (2) is met, determining that personnel in the automobile internal environment are in a first-level dangerous state;
if the conditions (1) and (2) are met, determining that personnel in the automobile internal environment are in a second-level dangerous state;
further, when the environment in the automobile is in a first-level dangerous state, the alarm module performs alarm operation in a form of short message notification and/or buzzing voice broadcast;
when the environment inside the automobile is in a second-level dangerous state, the alarm module carries out alarm operation in a telephone calling and/or buzzing voice broadcasting mode.
Compared with the prior art, the automobile remote child protection system is specially designed for life safety monitoring of children in the automobile, and comprises a main control module, a gas sensor module, a temperature sensor module, an infrared sensing module and an alarm module; the gas sensor module is used for detecting harmful gas concentration information of the internal environment of the automobile; the temperature sensor module is used for detecting real-time temperature information of the internal environment of the automobile; the infrared sensing module is used for detecting the personnel existence state information of the internal environment of the automobile; the main control module is used for determining the safety state information of the personnel in the internal environment of the automobile according to the concentration information of the harmful gas, the real-time temperature information and the existence state information of the personnel; the alarm module is used for carrying out alarm operation in a corresponding mode according to the personnel safety state information; it is thus clear that this car long-range child care system detects the harmful gas concentration information of car internal environment respectively through setting up the gas sensor module, temperature sensor module and infrared induction module, real-time temperature information and children exist the status information, recycle the host system according to harmful gas concentration information, real-time temperature information and children exist the status information, confirm that car internal environment exists children's safety status information, finally through the alarm operation of the corresponding mode of alarm module, can carry out reliable quantitative judgement to car internal environment to children's security threat like this, whether the risk that the car internal environment whether has the emergence life safety accident in time and accurately reminds, thereby be convenient for in time rescue and improve the automation and the intelligent degree of car remote monitoring to car internal children.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without any creative effort.
Fig. 1 is a schematic structural diagram of a remote child protection system for an automobile according to the present invention.
Fig. 2 is a schematic circuit diagram of a carbon dioxide sensor in the remote child protection system of the automobile provided by the invention.
Fig. 3 is a schematic circuit diagram of a carbon monoxide sensor in the automobile remote child protection system provided by the invention.
Fig. 4 is a schematic circuit diagram of a temperature sensor in the automobile remote child protection system provided by the invention.
Fig. 5 is a schematic circuit diagram of a power module in the remote child protection system of the vehicle according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a schematic structural diagram of a remote child protection system for an automobile according to an embodiment of the present invention. The automobile remote child protection system comprises a main control module, a gas sensor module, a temperature sensor module, an infrared sensing module and an alarm module; wherein,
the gas sensor module is used for detecting harmful gas concentration information of the internal environment of the automobile;
the temperature sensor module is used for detecting real-time temperature information of the internal environment of the automobile;
the infrared sensing module is used for detecting the personnel existence state information of the internal environment of the automobile;
the main control module is used for determining the safety state information of the personnel in the internal environment of the automobile according to the concentration information of the harmful gas, the real-time temperature information and the information of the existence state of the personnel;
the alarm module is used for carrying out alarm operation in a corresponding mode according to the personnel safety state information.
The beneficial effects of the above technical scheme are: the automobile remote child protection system is specially designed for monitoring the life safety of children in the automobile, the system is provided with a gas sensor module, a temperature sensor module and an infrared sensing module which are respectively used for detecting the concentration information of harmful gas, the real-time temperature information and the personnel existing state information of the internal environment of the automobile, then a main control module is used for determining the personnel safety state information of the internal environment of the automobile according to the concentration information of the harmful gas, the real-time temperature information and the personnel existing state information, and finally the alarm module is used for alarming in a corresponding mode, therefore, the safety threat of the internal environment of the automobile to personnel can be reliably and quantitatively judged, so as to timely and accurately remind the internal environment of the automobile whether the risk of life safety accidents occurs, therefore, the children in the automobile can be conveniently and timely rescued, and the automation and intelligence degree of automobile remote monitoring can be improved.
Preferably, the gas sensor module comprises a plurality of carbon dioxide sensors, a plurality of carbon monoxide sensors, and a gas detection data collection and processor; wherein,
the plurality of carbon dioxide sensors are arranged at different positions of the internal environment of the automobile in a distributed mode so as to detect carbon dioxide concentration data at corresponding positions;
the carbon monoxide sensors are arranged at different positions of the internal environment of the automobile in a distributed mode so as to detect carbon monoxide concentration data at corresponding positions;
the gas detection data collecting and processing device is used for collecting and processing carbon dioxide concentration data from different carbon dioxide sensors so as to obtain a real-time carbon dioxide concentration value and/or carbon dioxide concentration change speed of the internal environment of the automobile;
the gas detection data collecting and processing device is used for collecting and processing carbon monoxide concentration data from different carbon monoxide sensors so as to obtain a real-time carbon monoxide concentration value and/or a carbon monoxide concentration change speed of the internal environment of the automobile.
The beneficial effects of the above technical scheme are: because in the car internal environment of closed condition, along with inside personnel constantly breathe and the operation of car start-up goes on, this car internal environment can constantly gather carbon dioxide and carbon monoxide, when the concentration of carbon dioxide and carbon monoxide in car internal environment rises to certain degree, it can produce the threat to inside personnel's life safety, and through set up carbon dioxide sensor and carbon monoxide sensor in the different positions of car internal environment, can accurately and in time obtain the carbon dioxide and the carbon monoxide state of gathering of car internal environment to in the follow-up targeted warning that carries on.
Preferably, the temperature sensor module comprises a plurality of temperature sensors and a temperature detection data collecting and processing device; wherein,
the temperature sensors are arranged at different positions of the internal environment of the automobile in a distributed mode so as to detect temperature data at corresponding positions;
the temperature detection data collecting and processing device is used for collecting and processing temperature data from different temperature sensors so as to obtain real-time temperature values and/or temperature change speeds of the internal environment of the automobile.
The beneficial effects of the above technical scheme are: because the temperature of the internal environment of the automobile can be rapidly increased in the internal environment of the automobile in a closed state, particularly under hot weather, when the temperature is increased to a certain degree, the temperature can threaten the life safety of internal personnel, and the temperature change state of the internal environment of the automobile can be accurately and timely obtained by arranging the temperature sensors at different positions of the internal environment of the automobile, so that the subsequent targeted alarm can be conveniently carried out.
Preferably, the infrared sensing module comprises an infrared sensing sensor and an infrared sensing data collecting and processing module; wherein,
the infrared induction sensor is used for detecting thermal infrared distribution data of the internal environment of the automobile;
the infrared sensing data collecting and processing module is used for collecting and processing the thermal infrared distribution data so as to obtain the number of the persons in the internal environment of the automobile and/or the size of the individual persons.
The beneficial effects of the above technical scheme are: through setting up infrared induction sensor at car internal environment to utilize this infrared induction sensor to detect the thermal infrared spectrum information of car internal environment, because personnel existence quantity when car internal environment is more or personnel are individual big more, its thermal infrared spectrum intensity that corresponds is also big more, through carrying out analysis processes to this thermal infrared distribution data and can accurately confirm that the personnel of car internal environment exist quantity and/or exist personnel individual size, thereby confirm whether this car internal environment exists the condition that leaves children alone.
Preferably, the automobile remote child protection system further comprises a power module, a display module and a communication module; wherein, is controlled,
the power supply module is used for supplying power to the gas sensor module, the temperature sensor module and the infrared induction module;
the display module is used for being connected with the main control module and displaying at least one of the harmful gas concentration information, the real-time temperature information and the personnel existence state information;
the communication module is used for realizing data communication between the main control module and the alarm module.
The beneficial effects of the above technical scheme are: can provide stable power supply support for gas sensor module, this temperature sensor module and this infrared induction module through this power module, and utilize this display module can show at least one in this harmful gas concentration information, this real-time temperature information and this personnel's existing state information in real time to the user can master the real-time environmental parameter in the car internal environment in time and comprehensively. Fig. 5 is a schematic diagram of a circuit structure of a power module in the remote child protection system of the vehicle according to the present invention. The power module can independently supply power for the gas sensor module, the temperature sensor module and the infrared induction module, magnetic flux generated in the circuit operation process is eliminated by arranging the 33uH inductor L in the loop, and the capacitors of 220uF and 680uF are respectively arranged at the input end and the output end of the voltage stabilizing chip, so that the corresponding filtering function can be achieved.
Preferably, the carbon dioxide sensor is a solid electrolyte sensor;
the detection of the carbon dioxide concentration data by the solid electrolyte sensor specifically comprises the following steps:
when the solid electrolyte sensor is positioned in a carbon dioxide atmosphere, acquiring a potential difference between a sensitive electrode and a reference electrode of the solid electrolyte sensor, and determining the carbon dioxide concentration data according to the potential difference and an Nernst equation;
the step of acquiring the real-time carbon dioxide concentration value and/or the carbon dioxide concentration change speed of the internal environment of the automobile by the gas detection data collection and processor specifically comprises the following steps:
the gas detection data collection and processor collects carbon dioxide concentration data from different carbon dioxide sensors, and performs dead-point data elimination processing and data average calculation processing on all the carbon dioxide concentration data to obtain a real-time carbon dioxide concentration value;
and/or the presence of a gas in the gas,
the gas detection data collecting and processing unit collects carbon dioxide concentration data from different carbon dioxide sensors and determines the average change value of the carbon dioxide concentration data with time, thereby obtaining the change speed of the carbon dioxide concentration
Referring to fig. 2, a schematic circuit structure diagram of a carbon dioxide sensor in a remote child care system of an automobile according to the present invention is shown. The solid electrolyte sensor is an MG811 solid electrolyte sensor, the temperature of the inner core can reach more than 500 ℃ when the solid electrolyte sensor works, and the inner core is in direct contact with the ambient air, so the sensitivity of the sensor is influenced when the ambient temperature changes, and a temperature compensation circuit is required to be added when the measurement accuracy requirement is higher. When the MG811 solid electrolyte sensor was placed in a carbon dioxide atmosphere, the following electrode reactions would occur:
negative electrode: 2Li + + CO2+1/2O2+2e ═ Li2CO3
And (3) positive electrode: 2Na + +1/2O2+2e ═ Na2O
Total electrode reaction: li2CO3+2Na + ═ Na2O +2Li + + CO2
The potential difference (EMF) between the sensor sensitive electrode and the reference electrode follows the nernst equation: EMF Ec- (R x T)/(2F) ln (P (CO2))
In the above formula: p (CO2) -CO 2 partial pressure, Ec-constant, R-gas constant, T-absolute temperature (K), F-Faraday constant; and finally, determining the carbon dioxide concentration data according to the potential difference and the Nernst equation.
Preferably, the carbon monoxide sensor is an MQ-2 gas sensor;
the method for detecting and obtaining the carbon monoxide concentration data by the MQ-2 gas sensor specifically comprises the following steps:
when the MQ-2 gas sensor is in a carbon monoxide atmosphere, acquiring output voltage and loop voltage corresponding to the MQ-2 gas sensor, and determining carbon monoxide concentration data according to the output voltage, the loop voltage and a preset empirical formula;
the step of acquiring the real-time carbon monoxide concentration value and/or the carbon monoxide concentration change speed of the internal environment of the automobile by the gas detection data collection and processor specifically comprises the following steps:
the gas detection data collection and processor collects carbon monoxide concentration data from different carbon monoxide sensors, and performs dead-point data elimination processing and data average calculation processing on all the carbon monoxide concentration data to obtain a real-time carbon monoxide concentration value;
and/or the presence of a gas in the gas,
the gas detection data collection and processor collects carbon monoxide concentration data from different carbon monoxide sensors and determines an average change value of the carbon monoxide concentration data with time, thereby obtaining the carbon monoxide concentration change speed.
Fig. 3 is a schematic circuit diagram of a carbon monoxide sensor in the remote child protection system of the vehicle according to the present invention. The carbon monoxide sensor is an MQ-2 gas sensor. The MQ-2 gas sensor has a wide detection range; high sensitivity, fast response recovery; excellent stability and long service life; a simple drive circuit. Fig. 4 shows a carbon monoxide conditioning circuit. The 4-pin output of MQ-2, which outputs a dc signal that varies with smoke concentration, is applied to the 2-pin of comparator U1A, with Rp constituting the comparator's threshold voltage. When the output voltage of the smoke with higher concentration is higher than the threshold voltage, the comparator outputs a low level (0V), and the LED lights for alarming; when the output voltage of the concentration decrease sensor is lower than the threshold voltage, the comparator flips to output a high level (Vcc), and the LED is turned off. The formula for calculating the carbon monoxide concentration by the MQ-2 gas sensor comprises the following steps: Vrl/RI ═ (Vcc-Vrl)/Rs; vrl: i.e., AO port output voltage, Vcc: loop voltage, Rl: rl is 5.1K; when the loop voltage is 5V, Vrl under clean air is 0.621887, and after a plurality of tests, the R0 value is calculated to be 35.904K. Derived from the equations Rs/R0-11.5428 ppm (-0.6549) and Vrl/RI-Vcc-Vrl/Rs, we obtain: ppm-pow (11.5428 × 35.904 × Vrl/(25.5-5.1 × Vrl), 0.6549).
Preferably, the temperature sensor temperature is a DSI8B20 temperature sensor;
the step of acquiring the real-time temperature value and/or the temperature change speed of the internal environment of the automobile by the temperature detection data collection and processor specifically comprises the following steps:
the temperature detection data collection and processor collects temperature data from different temperature sensors, and performs bad point data elimination processing and data average calculation processing on the temperature data so as to obtain the real-time temperature value;
and/or the presence of a gas in the gas,
the temperature detection data collection and processor collects temperature data from different temperature sensors and determines an average change value of the temperature data with time, thereby obtaining the temperature change speed.
Referring to fig. 4, a schematic diagram of a circuit structure of a temperature sensor in a remote child protection system of an automobile according to the present invention is shown. The temperature sensor is a DSI8B20 temperature sensor, the temperature sensor has stable and reliable work and strong anti-interference capability, and the circuit is simpler, so that a stable and reliable multipoint temperature monitoring system can be developed. Two 8-bit RAMs of the DS18B20 temperature sensor store binary numbers, the upper five bits are sign bits, if the temperature is higher than 0 ℃, the five bits are 0, the measured value is multiplied by 0.0625 to obtain the actual temperature value; if the temperature is less than 0 ℃ and the upper five bits are 1, the measured value needs to be added with 1 after being negated, and then multiplied by 0.0625 to obtain the actual temperature value. The calculation formula is therefore: when temp <0 has: temp-1; temp is-temp; tp is temp; temp. tp 0.0625 100+ 0.5; when temp > - <0 > there is temp- < tp- < 0.0625- < 100+ 0.5.
Preferably, the determining, by the main control module, the safety state information of the personnel existing in the internal environment of the automobile according to the harmful gas concentration information, the real-time temperature information and the personnel existing state information specifically includes:
it is determined whether the following conditions (1) and (2) hold:
(1) whether the number of the existing personnel is smaller than a preset number threshold value and/or whether the size of the existing personnel is smaller than a preset individual height threshold value is determined;
(2) determining whether any one of the real-time carbon dioxide concentration value, the carbon dioxide concentration change speed, the real-time carbon monoxide concentration value, the carbon monoxide concentration change speed, the real-time temperature value and the temperature change speed exceeds a respective corresponding preset threshold value;
if the condition (1) or the condition (2) is met, determining that personnel in the automobile internal environment are in a first-level dangerous state;
and if the conditions (1) and (2) are met, determining that the personnel in the automobile internal environment are in a second-level dangerous state.
The beneficial effects of the above technical scheme are: when the condition (1) or (2) is established, the automobile internal environment is indicated to exist personnel in a first-level dangerous state, when the condition (1) or (2) is established, the automobile internal environment is indicated to exist personnel in a second-level dangerous state, the dangerous degree corresponding to the first-level dangerous state is lower than the dangerous degree corresponding to the second-level dangerous state, and therefore the dangerous states of the automobile internal environment can be effectively distinguished conveniently.
Preferably, when the environment inside the automobile is in a first-level dangerous state, the alarm module performs alarm operation in a form of short message notification and/or buzzing voice broadcast;
when the automobile internal environment has a state that personnel are in a second-level dangerous state, the alarm module carries out alarm operation in a telephone calling and/or buzzing voice broadcasting mode.
The beneficial effects of the above technical scheme are: the alarm module is used for carrying out alarm operation in a form of short message notification and/or buzzing voice broadcast or in a form of telephone calling and/or buzzing voice broadcast, so that children in the automobile can be conveniently and timely rescued, and the automation and intelligence degree of automobile remote monitoring can be improved.
From the content of the embodiment, the automobile remote child protection system is specially designed for life safety monitoring of children in an automobile, and comprises a main control module, a gas sensor module, a temperature sensor module, an infrared sensing module and an alarm module; the gas sensor module is used for detecting harmful gas concentration information of the internal environment of the automobile; the temperature sensor module is used for detecting real-time temperature information of the internal environment of the automobile; the infrared sensing module is used for detecting the personnel existence state information of the internal environment of the automobile; the main control module is used for determining the safety state information of the personnel in the internal environment of the automobile according to the concentration information of the harmful gas, the real-time temperature information and the existence state information of the personnel; the alarm module is used for carrying out alarm operation in a corresponding mode according to the personnel safety state information; it is thus clear that this car remote child care system detects the harmful gas concentration information of car internal environment respectively through setting up the gas sensor module, temperature sensor module and infrared induction module, real-time temperature information and children exist the status information, recycle the host system according to harmful gas concentration information, real-time temperature information and children exist the status information, confirm that car internal environment exists children's safety status information, the alarm operation through the corresponding mode of alarm module at last, can carry out reliable quantitative judgement to car internal environment to children's security threat like this, in order to remind car internal environment whether to have the risk of taking place life safety accident in time and accurately, thereby be convenient for in time to rescue car internal children and improve the automation and the intelligent degree of car remote guardianship.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.
Claims (10)
1. The automobile remote child protection system is characterized by comprising a main control module, a gas sensor module, a temperature sensor module, an infrared sensing module and an alarm module; wherein,
the gas sensor module is used for detecting harmful gas concentration information of the internal environment of the automobile;
the temperature sensor module is used for detecting real-time temperature information of the internal environment of the automobile;
the infrared sensing module is used for detecting the personnel existence state information of the internal environment of the automobile;
the main control module is used for determining the safety state information of the personnel in the internal environment of the automobile according to the concentration information of the harmful gas, the real-time temperature information and the personnel existence state information;
and the alarm module is used for carrying out alarm operation in a corresponding mode according to the personnel safety state information.
2. The automotive remote child care system of claim 1, wherein:
the gas sensor module comprises a plurality of carbon dioxide sensors, a plurality of carbon monoxide sensors and a gas detection data collecting and processing device; wherein,
the carbon dioxide sensors are arranged at different positions of the internal environment of the automobile in a distributed mode, so that carbon dioxide concentration data at the corresponding positions are detected;
the carbon monoxide sensors are arranged at different positions of the internal environment of the automobile in a distributed mode, so that carbon monoxide concentration data at the corresponding positions are detected;
the gas detection data collecting and processing device is used for collecting and processing carbon dioxide concentration data from different carbon dioxide sensors so as to obtain a real-time carbon dioxide concentration value and/or a carbon dioxide concentration change speed of the internal environment of the automobile;
the gas detection data collecting and processing device is used for collecting and processing carbon monoxide concentration data from different carbon monoxide sensors so as to obtain a real-time carbon monoxide concentration value and/or a carbon monoxide concentration change speed of the internal environment of the automobile.
3. The automotive remote child care system of claim 2, wherein:
the temperature sensor module comprises a plurality of temperature sensors and a temperature detection data collecting and processing device; wherein,
the temperature sensors are arranged at different positions of the internal environment of the automobile in a distributed mode so as to detect temperature data at the corresponding positions;
the temperature detection data collecting and processing device is used for collecting and processing temperature data from different temperature sensors so as to obtain real-time temperature values and/or temperature change speeds of the internal environment of the automobile.
4. A vehicle remote child care system according to claim 3, wherein:
the infrared induction module comprises an infrared induction sensor and an infrared induction data collecting and processing module; wherein,
the infrared induction sensor is used for detecting thermal infrared distribution data of the internal environment of the automobile; the infrared induction data collecting and processing module is used for collecting and processing the thermal infrared distribution data so as to obtain the number of the persons in the internal environment of the automobile and/or the size of the individual persons.
5. The automotive remote child care system of claim 1, wherein:
the automobile remote child protection system also comprises a power module, a display module and a communication module; the power supply module is used for supplying power to the gas sensor module, the temperature sensor module and the infrared induction module;
the display module is used for being connected with the main control module and displaying at least one of the harmful gas concentration information, the real-time temperature information and the personnel existence state information;
the communication module is used for realizing data communication between the main control module and the alarm module.
6. The automotive remote child care system of claim 2, wherein:
the carbon dioxide sensor is a solid electrolyte sensor;
the detection of the carbon dioxide concentration data by the solid electrolyte sensor specifically comprises the following steps:
when the solid electrolyte sensor is positioned in a carbon dioxide atmosphere, acquiring a potential difference between a sensitive electrode and a reference electrode of the solid electrolyte sensor, and determining the carbon dioxide concentration data according to the potential difference and the Nernst equation;
the step of acquiring the real-time carbon dioxide concentration value and/or the carbon dioxide concentration change speed of the internal environment of the automobile by the gas detection data collection and processor specifically comprises the following steps:
the gas detection data collection and processor collects carbon dioxide concentration data from different carbon dioxide sensors, and performs dead-point data elimination processing and data average calculation processing on all the carbon dioxide concentration data to obtain the real-time carbon dioxide concentration value;
and/or the presence of a gas in the gas,
the gas detection data collection and processor collects carbon dioxide concentration data from different carbon dioxide sensors and determines an average change value of the carbon dioxide concentration data with time, so as to obtain the change speed of the carbon dioxide concentration.
7. The automotive remote child care system of claim 2, wherein:
the carbon monoxide sensor is an MQ-2 gas sensor;
the method for detecting and obtaining the carbon monoxide concentration data by the MQ-2 gas sensor specifically comprises the following steps:
when the MQ-2 gas sensor is in a carbon monoxide atmosphere, acquiring output voltage and loop voltage corresponding to the MQ-2 gas sensor, and determining carbon monoxide concentration data according to the output voltage, the loop voltage and a preset empirical formula;
the step of acquiring the real-time carbon monoxide concentration value and/or the carbon monoxide concentration change speed of the internal environment of the automobile by the gas detection data collection and processor specifically comprises the following steps:
the gas detection data collection and processor collects carbon monoxide concentration data from different carbon monoxide sensors, and performs dead-point data elimination processing and data average calculation processing on all the carbon monoxide concentration data to obtain the real-time carbon monoxide concentration value;
and/or the presence of a gas in the gas,
the gas detection data collection and processor collects carbon monoxide concentration data from different carbon monoxide sensors, and determines the average change value of the carbon monoxide concentration data along with time, thereby obtaining the carbon monoxide concentration change speed.
8. A vehicle remote child care system according to claim 3, wherein:
the temperature sensor is a DSI8B20 temperature sensor;
the step of acquiring the real-time temperature value and/or the temperature change speed of the internal environment of the automobile by the temperature detection data collection and processor specifically comprises the following steps:
the temperature detection data collection and processor collects temperature data from different temperature sensors, and performs dead point data elimination processing and data average calculation processing on the temperature data so as to obtain the real-time temperature value;
and/or the presence of a gas in the gas,
the temperature detection data collection and processor collects temperature data from different temperature sensors and determines the average change value of the temperature data along with time, thereby obtaining the temperature change speed.
9. The automotive remote child care system of claim 4, wherein:
the main control module determines that the safety state information of the personnel in the automobile internal environment specifically comprises the following steps according to the harmful gas concentration information, the real-time temperature information and the personnel existence state information:
it is determined whether the following conditions (1) and (2) hold:
(1) whether the number of the existing personnel is smaller than a preset number threshold value and/or whether the size of the existing personnel is smaller than a preset individual height threshold value is determined;
(2) determining whether any one of the real-time carbon dioxide concentration value, the carbon dioxide concentration change speed, the real-time carbon monoxide concentration value, the carbon monoxide concentration change speed, the real-time temperature value and the temperature change speed exceeds a respective corresponding preset threshold value;
if the condition (1) or the condition (2) is met, determining that personnel in the automobile internal environment are in a first-level dangerous state;
and if the conditions (1) and (2) are met, determining that the personnel in the automobile internal environment are in a second-level dangerous state.
10. The automotive remote child care system of claim 9, wherein:
when the personnel in the automobile internal environment are in a first-level dangerous state, the alarm module carries out alarm operation in a short message notification and/or buzzing voice broadcasting mode;
when the automobile internal environment has a state that personnel are in a second-level dangerous state, the alarm module carries out alarm operation in a telephone calling and/or buzzing voice broadcasting mode.
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