CN202088895U - Vehicle alarm device for children staying in vehicle - Google Patents
Vehicle alarm device for children staying in vehicle Download PDFInfo
- Publication number
- CN202088895U CN202088895U CN2011201448553U CN201120144855U CN202088895U CN 202088895 U CN202088895 U CN 202088895U CN 2011201448553 U CN2011201448553 U CN 2011201448553U CN 201120144855 U CN201120144855 U CN 201120144855U CN 202088895 U CN202088895 U CN 202088895U
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Abstract
The utility model provides a vehicle alarm device for children staying in vehicle, which prevents accidents occurring to children staying in a vehicle with the adoption of photoelectric technology. The vehicle alarm device comprises a detection means for signal collection and detection, a central processing unit and an actuating means. The detection means is connected to the actuating means through a circuit and the central processing unit. The detection means includes a photoelectric sensor, a temperature induction meter and a gas detector. The actuating means includes a wireless signal emitter, a light projector, a sound projector and a ventilation system controller. The photoelectric sensor, the temperature induction meter and the gas detector transmits the detected signal to the central processing unit through the circuit. After processing the received signal, the central processing unit sends out alarm instruction to the wireless signal emitter, the light projector, and the sound projector, and sends out an instruction of starting a ventilation device to the ventilation system controller. The wireless signal emitter sends wireless alarm signal to a mobile phone. The light projector starts the vehicle warning lamp. The sound projector sends out alarm sound. The ventilation system controller respectively starts a vehicle air-conditioning ventilation system and a vehicle elevating system. The vehicle alarm device for children staying in vehicle is advantageous in that no special demand is required for the vehicle and the use is convenient; the problem that children staying in the vehicle has no protection in terms of personal safety when the vehicle is stopped; technique parameter can be displayed, facilitating the adjustment of parameter; settings can be modified, achieving multiple functions.
Description
[technical field]
The utility model relates to a kind of automobile personal safety warning protective device, especially a kind ofly is used to prevent that children are detained the warning that safety misadventure takes place in the car and the auxiliary relief measure device of implementing to ventilate.
[background technology]
At present, known automobile personal safe protection adopts protective device such as safety air bag, safety strap and the employing warning devices such as annunciator that prevent to knock into the back, and these warning protective devices all are to be to prevent the safety prevention measure that fatal accident is carried out at the vehicle in the driving process, do not have safeguard procedures but stay the personal safety that stops back delay occupant for vehicle, this just becomes the hidden danger of children's personal safety by bus.Stay when vehicle and to stop the back children in case when being detained in the car for a long time, along with the personal safety injury very easily takes place for the variation and the gathering of pernicious gas of vehicle interior temperature, but because children do not possess certain capacity, therefore the emergency of can't reporting to the police voluntarily also can't take to open the measure of saving oneself that air conditioner ventilating system and vehicle window carry out ventilation voluntarily.
[summary of the invention]
The purpose of this utility model is to solve vehicle to stay the problem that the children's personal safety that stops in the car of back does not have safeguard procedures, providing a kind of can send alerting signal prompting navigating mate at navigating mate and prevent from children are detained in the car behind car, especially after in children are detained car, by environment inside car is detected, in time send warning when in a single day discovery dangerous to guardian's warning with to the external world, can also the force start ventilation system assist the device of relief simultaneously, ensure the purpose of children's personal safety by bus thereby reach.
The technical scheme that the utility model adopts for achieving the above object is: a kind of children of preventing are detained the warning device that safety misadventure takes place in the car, this device is a kind of warning device that adopts photoelectric technology, join with main car circuit, after vehicle door in the parking is locked, start voluntarily, close voluntarily after no children are detained when detecting.It comprises the detecting device that carries out the acquisition of signal detection, central process unit and executive device, described detecting device is connected with central process unit by circuit, described executive device also is connected with central process unit by circuit, described detecting device comprises electro-optical pickoff, temperature sense meter and gas detection meter, described executive device comprises wireless signal transmitter, illuminator, rattler and ventilation system controller, described electro-optical pickoff, temperature sense meter and gas detection meter reach central process unit with detected signal by circuit, behind the signal that central process unit handle to receive respectively to wireless signal transmitter, illuminator, rattler sends alarm command, send the instruction of startup draft equipment to the ventilation system controller, described wireless signal transmitter sends wireless alarm signal to mobile phone, illuminator starts former car Warning light, rattler sends chimes of doom, and the ventilation system controller starts former car air conditioner ventilating system and former car window lifting system respectively.
Wherein said central process unit outer input interface is connected with former lock car control signal output interface, another outer input interface of described central process unit is connected with former car power output interface, described illuminator output interface is connected with former car Warning light input interface, described ventilation system controller output interface is connected with former car air conditioner ventilating system input interface, and described another output interface of ventilation system controller is connected with former car window lifting system input interface.
Wherein said central process unit comprises micro controller system processing and the storage system modules that is respectively equipped with IO interface; power supply and protective circuit module; liquid crystal display and control panel module; described micro controller system handle with the inside input interface of storage system modules respectively with the output interface of power supply and protective circuit module; liquid crystal display is connected with the output interface of control panel module; described micro controller system is handled and is connected with the input interface of liquid crystal display with the control panel module with the inside output interface of storage system modules, and described power supply is connected with another input interface of control panel module with liquid crystal display with another output interface of protective circuit module.
Wherein said electro-optical pickoff; the output interface of temperature sense meter and gas detection meter is handled with described micro controller system respectively and is connected with the outer input interface of storage system modules; described micro controller system is handled and is connected with described former lock car control signal output interface with another outer input interface of storage system modules; described power supply is connected with described former car power output interface with the outer input interface of protective circuit module, described micro controller system handle with the outside output interface of storage system modules respectively with described wireless signal transmitter; illuminator; the input interface of rattler and ventilation system controller connects.
Because adopt said structure, the automobile-used children of the utility model are detained warning device and have following beneficial effect:
1, the vehicle of implementing there is not specific (special) requirements, easy to use
The automobile-used children of the utility model are detained warning device owing to adopt independently detection and processing equipment, promptly use electro-optical pickoff, the detecting device that temperature sense meter and gas detection meter are formed detects environment inside car, pass through the executive device wireless signal transmitter handle the signal that receives with central process unit after, illuminator, rattler and ventilation system controller send warning and startup air conditioner ventilating system and vehicle window and carry out ventilation, this device just central process unit inserts lock car control signal and power supply from former car Circuits System, illuminator inserts former car Warning light, the ventilation system controller inserts former car air conditioner ventilating system and former car window lifting system respectively, and need not former truck system is changed, so can on various vehicles, use, easy to use.
2, thoroughly solve vehicle and stay the problem that the children's personal safety that stops in the car of back does not have safeguard procedures
The automobile-used children of the utility model are detained warning device owing to adopt independently detection and processing equipment, promptly the detecting device of forming with electro-optical pickoff, temperature sense meter and gas detection meter detects environment inside car, carry out ventilation with sending warning and startup air conditioner ventilating system and vehicle window by executive device wireless signal transmitter, illuminator, rattler and ventilation system controller behind the signal of central process unit processing reception, thoroughly solve the problem that vehicle interior children's personal safety of car after stopping does not have safeguard procedures.
But 3 technique of display parameters are conveniently carried out parameter adjustment
The automobile-used children of the utility model are detained warning device and are shown in the LCDs after central process unit is handled owing to the signal that will detect reaches, can testing process and result's technical parameter be shown at random, realize the concrete environment of basis and the purpose of adjustment data, help reaching the monitoring effect of the best.
4, can revise setting, realize multiple function
The automobile-used children of the utility model are detained warning device owing to join with main car circuit, after locking, vehicle door in the parking starts voluntarily, close voluntarily after no children are detained when detecting, if will detect close voluntarily after no children are detained be provided with close after, can carrying out Photoelectric Detection to stay stopping, realizing the photoelectricity anti-theft alarm function.
Below in conjunction with drawings and Examples the automobile-used children of the utility model being detained warning device is further described.
[description of drawings]
Fig. 1 is that the automobile-used children of the utility model are detained the warning device structural representation.
Fig. 2 is that the automobile-used children of the utility model are detained the structured flowchart of central process unit in the warning device and central process unit and detecting device, executive device connection diagram.(solid line boxes is the component part of central process unit among the figure)
The element numbers explanation:
1-detecting device, 1-1-opto-electronic pickup, 1-2-temperature sense meter, 1-3-gas detection meter, 2-central process unit, the processing of 2-1-micro controller system and storage system modules, 2-2-power supply and protective circuit module, 2-3-liquid crystal display and control panel module, 3-executive device, 3-1-signal projector, 3-2-illuminator, 3-3-rattler, 3-4-ventilation system controller, 3-3-rattler, the former car supply unit of 4-1-, the former lock car of 4-2-control signal device.
[specific embodiment]
Extremely shown in Figure 2 as Fig. 1, the automobile-used children of the utility model are detained warning device, this device is a kind ofly to adopt the children that prevent of photoelectric technology to be detained the warning device that safety misadventure takes place in the car, and it comprises and carries out detecting device (1), central process unit (2) and the executive device (3) that acquisition of signal is surveyed.Described detecting device (1) is connected with central process unit (2) by circuit, and described executive device (3) also is connected with central process unit (2) by circuit.
Described detecting device (1) comprises electro-optical pickoff (1-1), temperature sense meter (1-2) and gas detection meter (1-3), described executive device (3) comprises wireless signal transmitter (3-1), illuminator (3-2), rattler (3-3) and ventilation system controller (3-4), described opto-electronic pickup (1-1) is installed in ceiling place, top in the car, be to realize in the system that signal receives the key element of conversion, there is the photosignal receiving and processing device inside, after car door is locked, start the photosignal in the probe vehicles voluntarily, and photosignal is transformed into electric signal is transferred to central process unit (2) by circuit; The temperature sense meter (1-2) that is installed in the car changes the vehicle interior temperature of sensing into electric signal, also signal is transferred to central process unit (2) by circuit simultaneously; Gas detection meter (1-3) changes detected gas signal into electric signal, also signal is transferred to central process unit (2) by circuit simultaneously; Central process unit (2) sends alarm command, sends the instruction of startup draft equipment to ventilation system controller (3-4) to wireless signal transmitter (3-1), illuminator (3-2), rattler (3-3) respectively after handling the signal that receives, described wireless signal transmitter (3-1) sends wireless alarm signal to mobile phone, illuminator (3-2) starts former car Warning light, rattler (3-3) sends chimes of doom, and ventilation system controller (3-4) starts former car air conditioner ventilating system and former car window lifting system respectively.
Described central process unit (2) is a kind of intelligentized treater, central process unit is to adopt photovoltaic sensing element, temperature sense tube elements and the gas sensing element treater as signal source, and it is the photosignal of measuring, temperature signal and gas signal conditioning rear drive executive device (3) work.Wherein said central process unit (2) comprises that the micro controller system that is respectively equipped with IO interface is handled and storage system modules (2-1), power supply and protective circuit module (2-2), liquid crystal display and control panel module (2-3), lock car control signal interface and signal input output interface, constitutes holonomic system with peripheral detecting device (1), executive device (3).Described processing is connected with the output interface of control panel module (2-3) with output interface, the liquid crystal display of protective circuit module (2-2) with power supply respectively with the inside input interface of storage system modules (2-1); described processing is connected with the input interface of liquid crystal display with control panel module (2-3) with the inside output interface of storage system modules (2-1), and described power supply is connected with liquid crystal display another input interface with control panel module (2-3) with another output interface of protective circuit module (2-2).Described opto-electronic pickup (1-1); the output interface of temperature sense meter (1-2) and gas detection meter (1-3) is handled with described micro controller system and is connected with the outer input interface of storage system modules (2-1); described micro controller system is handled and is connected with described former lock car control signal (4-2) output interface with another outer input interface of storage system modules (2-1); described power supply is connected with described former car power supply (4-1) output interface with the outer input interface of protective circuit module (2-2), described micro controller system handle with the outside output interface of storage system modules (2-1) respectively with described wireless signal transmitter (3-1); illuminator (3-2); the input interface of rattler (3-3) and ventilation system controller (3-4) connects.The IO interface of not shown each element.Can be provided with, proofread and correct and regulate parameters neatly by the control panel of liquid crystal display and control panel module, and on LCDs, show.
In use, this device and main car circuit join, and start voluntarily after car door is locked.Starting back central process unit (2) handles the photosignal that opto-electronic pickup (1-1) probe receives, whether judge has children to be detained, the situation that discovery has children to be detained according to result of determination will be sent to the signal projector (3-1) of executive device (3) and remind instruction, proceed simultaneously to detect with temperature sense meter (1-2) and gas detection meter (1-3) afterwards, when finding that environment inside car temperature and gas concentration surpass when setting numerical value the signal projector (3-1) to executive device (3), illuminator (3-2), rattler (3-3) sends alarm command and starts ventilation system (3-4) instruction; Close voluntarily after no children are detained when detecting.
Claims (4)
1. automobile-used children are detained warning device, it is characterized in that, this device is a kind of warning device that adopts photoelectric technology, join with main car circuit, after locking, vehicle door in the parking starts voluntarily, close voluntarily after no children are detained when detecting, it comprises the detecting device (1) that carries out the acquisition of signal detection, central process unit (2) and executive device (3), described detecting device (1) is connected with central process unit (2) by circuit, described executive device (3) also is connected with central process unit (2) by circuit, described detecting device (1) comprises electro-optical pickoff (1-1), temperature sense meter (1-2) and gas detection meter (1-3), described executive device (3) comprises wireless signal transmitter (3-1), illuminator (3-2), rattler (3-3) and ventilation system controller (3-4), described electro-optical pickoff (1-1), temperature sense meter (1-2) and gas detection meter (1-3) reach central process unit (2) with detected signal by circuit, behind the signal that central process unit (2) handle to receive respectively to wireless signal transmitter (3-1), illuminator (3-2), rattler (3-3) sends alarm command, send the instruction of startup draft equipment to ventilation system controller (3-4), described wireless signal transmitter (3-1) sends wireless alarm signal to mobile phone, illuminator (3-2) starts former car Warning light, rattler (3-3) sends chimes of doom, and ventilation system controller (3-4) starts former car air conditioner ventilating system and former car window lifting system respectively.
2. automobile-used children as claimed in claim 1 are detained warning device, it is characterized in that, described central process unit (2) outer input interface is connected with former lock car control signal output interface, another outer input interface of described central process unit (2) is connected with former car power output interface, described illuminator (3-2) output interface is connected with former car Warning light input interface, described ventilation system controller (3-4) output interface is connected with former car air conditioner ventilating system input interface, and another output interface of described ventilation system controller (3-4) is connected with former car window lifting system input interface.
3. as claim 1; 2 arbitrary described automobile-used children are detained warning device; it is characterized in that; described central process unit (2) comprises processing and the storage system modules (2-1) that is respectively equipped with IO interface; power supply and protective circuit module (2-2); liquid crystal display and control panel module (2-3); the inside input interface of described processing and storage system modules (2-1) respectively with the output interface of power supply and protective circuit module (2-2); liquid crystal display is connected with the output interface of control panel module (2-3); described processing is connected with the input interface of liquid crystal display with control panel module (2-3) with the inside output interface of storage system modules (2-1), and described power supply is connected with liquid crystal display another input interface with control panel module (2-3) with another output interface of protective circuit module (2-2).
4. automobile-used children as claimed in claim 3 are detained warning device; it is characterized in that; described electro-optical pickoff (1-1); the output interface of temperature sense meter (1-2) and gas detection meter (1-3) is handled with described micro controller system respectively and is connected with the outer input interface of storage system modules (2-1); described micro controller system is handled and is connected with described former lock car control signal (4-1) output interface with another outer input interface of storage system modules (2-1); described power supply is connected with described former car power output interface with the outer input interface of protective circuit module (2-2), described micro controller system handle with the outside output interface of storage system modules (2-1) respectively with described wireless signal transmitter (3-1); illuminator (3-2); the input interface of rattler (3-3) and ventilation system controller (3-4) connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201448553U CN202088895U (en) | 2011-05-08 | 2011-05-08 | Vehicle alarm device for children staying in vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201448553U CN202088895U (en) | 2011-05-08 | 2011-05-08 | Vehicle alarm device for children staying in vehicle |
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| Publication Number | Publication Date |
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| CN202088895U true CN202088895U (en) | 2011-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011201448553U Expired - Fee Related CN202088895U (en) | 2011-05-08 | 2011-05-08 | Vehicle alarm device for children staying in vehicle |
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| CN (1) | CN202088895U (en) |
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102572156A (en) * | 2012-01-11 | 2012-07-11 | 南京航空航天大学 | Wireless sensor network-based onboard system and method for giving alarm for child |
| CN102802309A (en) * | 2012-08-06 | 2012-11-28 | 上海风翼空调设备有限公司 | Intelligent induced draft lighting system and control method thereof |
| CN103863181A (en) * | 2014-03-04 | 2014-06-18 | 沙洲职业工学院 | Automatic window opening warning system for high temperature in automobile |
| CN104464210A (en) * | 2013-09-20 | 2015-03-25 | 福特全球技术公司 | METHOD AND APPARATUS FOR NOTIFICATION of existence of living ENTITY IN VEHICLE |
| CN104670124A (en) * | 2013-11-28 | 2015-06-03 | 北汽福田汽车股份有限公司 | Control method and control system for preventing child forgotten in car from asphyxiation and passenger car |
| CN105150798A (en) * | 2015-08-26 | 2015-12-16 | 长沙高汇环保科技有限公司 | Electric car air conditioner system and control method thereof |
| CN105150924A (en) * | 2015-07-28 | 2015-12-16 | 王清平 | Automobile riding child high temperature protection device |
| CN105205980A (en) * | 2015-09-14 | 2015-12-30 | 吕东贤 | Intelligent wearable device for rescuing child in car |
| CN105196829A (en) * | 2015-07-10 | 2015-12-30 | 北京光华纺织集团有限公司 | Vehicle-mounted air conditioning system |
| CN105253085A (en) * | 2015-11-14 | 2016-01-20 | 大连理工大学 | In-car detained passenger state identification and dangerous state control system |
| CN105292037A (en) * | 2014-08-24 | 2016-02-03 | 石狮市高鑫技术孵化有限公司 | In-car security system device |
| CN105644467A (en) * | 2014-12-02 | 2016-06-08 | 杨基鑫 | Device and method for preventing infant from being locked from inside |
| CN105857212A (en) * | 2016-04-14 | 2016-08-17 | 重庆长安汽车股份有限公司 | Warning and rescuing system and method for condition that child is trapped in car |
| CN105946770A (en) * | 2016-05-09 | 2016-09-21 | 北京汽车股份有限公司 | Vehicle and device and method for preventing child from being mistakenly locked in vehicle |
| CN106004651A (en) * | 2015-03-24 | 2016-10-12 | 福特全球技术公司 | Rear occupant warning system |
| CN106218503A (en) * | 2016-08-19 | 2016-12-14 | 深圳贝莱尼健康科技有限公司 | Intelligent vehicle-carried child's guarding device, intelligent vehicle-carried child's safety-protection system and method for work thereof |
| CN106427859A (en) * | 2016-11-04 | 2017-02-22 | 李晓东 | In-vehicle safety protection system |
| CN106494342A (en) * | 2016-10-26 | 2017-03-15 | 浙江吉利控股集团有限公司 | A kind of child Liu Che safety systems and its method |
| CN106608219A (en) * | 2015-10-23 | 2017-05-03 | 广州汽车集团股份有限公司 | Method and system for detecting and processing vital signs in vehicle |
| USD813178S1 (en) | 2015-03-24 | 2018-03-20 | Dedric Tobias | Car seat alarm kit |
| CN110021154A (en) * | 2019-04-16 | 2019-07-16 | 武毅然 | A kind of car stayer's intelligent alarm system |
| CN110203164A (en) * | 2019-06-12 | 2019-09-06 | 九江学院 | Automobile heat asphyxia alarm method and system |
| CN112078522A (en) * | 2020-09-15 | 2020-12-15 | 珠海格力电器股份有限公司 | Automatic alarm device and method for detecting person in reverse-locked vehicle |
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2011
- 2011-05-08 CN CN2011201448553U patent/CN202088895U/en not_active Expired - Fee Related
Cited By (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102572156A (en) * | 2012-01-11 | 2012-07-11 | 南京航空航天大学 | Wireless sensor network-based onboard system and method for giving alarm for child |
| CN102802309B (en) * | 2012-08-06 | 2014-12-10 | 上海风翼空调设备有限公司 | Intelligent induced draft lighting system and control method thereof |
| CN102802309A (en) * | 2012-08-06 | 2012-11-28 | 上海风翼空调设备有限公司 | Intelligent induced draft lighting system and control method thereof |
| CN104464210A (en) * | 2013-09-20 | 2015-03-25 | 福特全球技术公司 | METHOD AND APPARATUS FOR NOTIFICATION of existence of living ENTITY IN VEHICLE |
| CN104670124A (en) * | 2013-11-28 | 2015-06-03 | 北汽福田汽车股份有限公司 | Control method and control system for preventing child forgotten in car from asphyxiation and passenger car |
| CN103863181A (en) * | 2014-03-04 | 2014-06-18 | 沙洲职业工学院 | Automatic window opening warning system for high temperature in automobile |
| CN103863181B (en) * | 2014-03-04 | 2016-03-30 | 沙洲职业工学院 | High temperature automatic window warning in a kind of Automobile |
| CN105292037A (en) * | 2014-08-24 | 2016-02-03 | 石狮市高鑫技术孵化有限公司 | In-car security system device |
| CN105644467A (en) * | 2014-12-02 | 2016-06-08 | 杨基鑫 | Device and method for preventing infant from being locked from inside |
| USD813178S1 (en) | 2015-03-24 | 2018-03-20 | Dedric Tobias | Car seat alarm kit |
| CN106004651A (en) * | 2015-03-24 | 2016-10-12 | 福特全球技术公司 | Rear occupant warning system |
| CN105196829A (en) * | 2015-07-10 | 2015-12-30 | 北京光华纺织集团有限公司 | Vehicle-mounted air conditioning system |
| CN105150924A (en) * | 2015-07-28 | 2015-12-16 | 王清平 | Automobile riding child high temperature protection device |
| CN105150798A (en) * | 2015-08-26 | 2015-12-16 | 长沙高汇环保科技有限公司 | Electric car air conditioner system and control method thereof |
| CN105205980A (en) * | 2015-09-14 | 2015-12-30 | 吕东贤 | Intelligent wearable device for rescuing child in car |
| CN106608219A (en) * | 2015-10-23 | 2017-05-03 | 广州汽车集团股份有限公司 | Method and system for detecting and processing vital signs in vehicle |
| CN105253085A (en) * | 2015-11-14 | 2016-01-20 | 大连理工大学 | In-car detained passenger state identification and dangerous state control system |
| CN105857212A (en) * | 2016-04-14 | 2016-08-17 | 重庆长安汽车股份有限公司 | Warning and rescuing system and method for condition that child is trapped in car |
| CN105857212B (en) * | 2016-04-14 | 2018-03-02 | 重庆长安汽车股份有限公司 | A kind of children are stranded in-car warning and rescue system and method |
| CN105946770A (en) * | 2016-05-09 | 2016-09-21 | 北京汽车股份有限公司 | Vehicle and device and method for preventing child from being mistakenly locked in vehicle |
| CN106218503A (en) * | 2016-08-19 | 2016-12-14 | 深圳贝莱尼健康科技有限公司 | Intelligent vehicle-carried child's guarding device, intelligent vehicle-carried child's safety-protection system and method for work thereof |
| CN106218503B (en) * | 2016-08-19 | 2018-11-23 | 深圳贝莱尼健康科技有限公司 | Intelligent vehicle-carried children's guarding device, intelligent vehicle-carried children's security system and its working method |
| CN106494342A (en) * | 2016-10-26 | 2017-03-15 | 浙江吉利控股集团有限公司 | A kind of child Liu Che safety systems and its method |
| CN106427859A (en) * | 2016-11-04 | 2017-02-22 | 李晓东 | In-vehicle safety protection system |
| CN110021154A (en) * | 2019-04-16 | 2019-07-16 | 武毅然 | A kind of car stayer's intelligent alarm system |
| CN110203164A (en) * | 2019-06-12 | 2019-09-06 | 九江学院 | Automobile heat asphyxia alarm method and system |
| CN112078522A (en) * | 2020-09-15 | 2020-12-15 | 珠海格力电器股份有限公司 | Automatic alarm device and method for detecting person in reverse-locked vehicle |
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