WO2017143845A1 - 车内防窒息***及车内防窒息方法 - Google Patents

车内防窒息***及车内防窒息方法 Download PDF

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Publication number
WO2017143845A1
WO2017143845A1 PCT/CN2016/111547 CN2016111547W WO2017143845A1 WO 2017143845 A1 WO2017143845 A1 WO 2017143845A1 CN 2016111547 W CN2016111547 W CN 2016111547W WO 2017143845 A1 WO2017143845 A1 WO 2017143845A1
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WIPO (PCT)
Prior art keywords
child
vehicle
module
temperature
car
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PCT/CN2016/111547
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English (en)
French (fr)
Inventor
刘均
廖其龙
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深圳市轱辘车联数据技术有限公司
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Publication of WO2017143845A1 publication Critical patent/WO2017143845A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00735—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00735—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models
    • B60H1/00742—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models by detection of the vehicle occupants' presence; by detection of conditions relating to the body of occupants, e.g. using radiant heat detectors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00978—Control systems or circuits characterised by failure of detection or safety means; Diagnostic methods
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • 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

Definitions

  • the invention relates to the technical field of automobile electronics, in particular to an anti-suffocation system in a vehicle and a method for preventing suffocation in a vehicle.
  • the main object of the present invention is to provide an in-vehicle anti-asphyxia system, which aims to eliminate the safety hazard when a child is trapped in a car, and to prevent damage to children caused by high temperature inside the car.
  • the present invention provides an in-vehicle anti-asphyxia system, which includes a temperature detecting module, a child confirmation module, a communication module, and a control module; the temperature detecting module and the child confirmation The module and the communication module are all electrically connected to the control module; wherein
  • the temperature detecting module is configured to detect a temperature in the automobile
  • the child confirmation module is configured to confirm whether a child is locked in the car
  • the communication module is configured to send an alarm message
  • the control module controls the vehicle air conditioner to turn on when the temperature detecting module detects that the temperature inside the vehicle exceeds the first temperature threshold; the control module further controls the communication module to send Alarm information.
  • the in-vehicle anti-suffocation system further includes a door detection module, wherein the door detection module is configured to output an enable signal to cause the control module to switch from the sleep mode to the normal operation mode when the door lock is detected.
  • the door detection module is configured to output an enable signal to cause the control module to switch from the sleep mode to the normal operation mode when the door lock is detected.
  • the communication module is controlled to stop sending alarm information.
  • the child confirmation module confirms that the child is locked in the automobile, and the communication module continuously sends an alarm signal to the preset mobile phone within a preset interval time.
  • control module controls the vehicle air conditioner to turn off when the temperature detecting module detects that the temperature inside the automobile is lower than the second temperature threshold.
  • a plurality of mobile phone numbers can be set in the communication module to send alarm information to a plurality of preset mobile phones.
  • the child confirmation module employs a sound detection unit to confirm whether the child is retained in the car.
  • the sound detecting unit uses a dual silicon microphone for sound collection, and the silicon microphone is disposed at different positions in the automobile.
  • the invention also provides a method for preventing suffocation of a child in a vehicle, which is applied to the anti-asphyxia system in the vehicle as described above, and the method for preventing suffocation in the vehicle comprises the following steps:
  • Temperature information in the car obtained by the temperature detecting module
  • the control module confirms that the child is locked in the automobile, and the control module controls the vehicle air conditioner to turn on when the temperature detecting module detects that the temperature in the automobile exceeds the first temperature threshold; and the control module further controls the communication module to send the alarm information. .
  • the child confirmation module confirms that the child is locked in the automobile, and the communication module continuously sends an alarm signal to the preset mobile phone within a preset interval time.
  • a plurality of mobile phone numbers can be set in the communication module to send alarm information to a plurality of preset mobile phones.
  • control module controls the vehicle air conditioner to turn off when the temperature detecting module detects that the temperature inside the automobile is lower than the second temperature threshold.
  • the child confirmation module employs a sound detection unit to confirm whether the child is retained in the car.
  • the sound detecting unit uses a dual silicon microphone for sound collection, and the silicon microphone is disposed at different positions in the automobile.
  • the in-vehicle anti-asphyxia system further includes a door detection module, which further includes: before the “recognizing whether the child is retained in the car by the child confirmation module”:
  • the door detection module detects whether the door is locked, and outputs an enable signal when the door is locked to cause the control module to switch from the sleep mode to the normal operation mode.
  • the communication module is controlled to stop sending alarm information.
  • the step of sending alarm information according to whether the child is in the car, and the step of turning on or off the car air conditioner according to the temperature information specifically includes:
  • the technical solution of the present invention forms an in-vehicle anti-suffocation system by setting the temperature detecting module, the child confirmation module, the communication module and the control module.
  • the communication module sends an alarm message and the temperature control module detects the temperature in the car.
  • the control module turns on the car air conditioner to lower the car. Internal temperature.
  • the anti-suffocation system of the vehicle can effectively prevent the child from suffocating due to excessive temperature inside the vehicle and eliminate the safety hazard.
  • FIG. 1 is a functional block diagram of an embodiment of an in-vehicle anti-suffocation system of the present invention
  • FIG. 2 is a functional block diagram of the temperature detecting module of FIG. 1;
  • Figure 3 is a functional block diagram of the child confirmation module of Figure 1;
  • FIG. 4 is a flow chart of a method for preventing suffocation in a vehicle of the present invention.
  • first, second and the like in the present invention are used for the purpose of description only, and are not to be construed as indicating or implying their relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” or “second” may include at least one of the features, either explicitly or implicitly.
  • the technical solutions between the various embodiments may be combined with each other, but must be based on the realization of those skilled in the art, and when the combination of the technical solutions is contradictory or impossible to implement, it should be considered that the combination of the technical solutions is not It is not within the scope of protection required by the present invention.
  • the invention provides an in-vehicle anti-asphyxia system.
  • the in-vehicle anti-suffocation system includes a temperature detecting module 10, a child confirmation module 20, a communication module 30, and a control module 40; the temperature detecting module 10, the child The confirmation module 20 and the communication module 30 are all electrically connected to the control module 40; wherein the temperature detection module 10 detects the temperature in the automobile; the child confirmation module 20 confirms whether a child is locked in the automobile; The communication module 30 sends an alarm message.
  • the control module 40 controls the vehicle air conditioner to turn on when the temperature detecting module 10 detects that the temperature inside the vehicle exceeds the first temperature threshold; the control module 40 also controls the The communication module 30 sends an alarm message.
  • the communication terminal that receives the alarm information is a mobile phone, which is very convenient and reliable.
  • the first temperature threshold is set to 30 ° C (degrees Celsius).
  • the temperature detecting module 10 includes a temperature sensor 11, a signal amplifier 12, and an analog to digital converter 13.
  • the analog temperature signal is acquired by the temperature sensor 11, the collected temperature signal is amplified by the signal amplifier 12, and the analog signal is converted into a digital signal by the digital-to-analog converter 13 and output to the control module 40.
  • the child confirmation module 20 of the present invention can confirm whether the child is staying in the car by using a common recognition confirmation method such as an infrared recognition method, a seat pressure detection method, or a voice recognition method.
  • a common recognition confirmation method such as an infrared recognition method, a seat pressure detection method, or a voice recognition method.
  • control module 40 is implemented by using a single chip microcomputer, and the actual application may also be implemented by a chip such as a DSP.
  • the technical solution of the present invention forms an in-vehicle anti-suffocation system by providing the temperature detecting module 10, the child confirmation module 20, the communication module 30, and the control module 40.
  • the communication module 30 transmits an alarm message and the temperature control module 40 detects the temperature in the vehicle.
  • the control module 40 turns on the vehicle. Air conditioning to reduce the temperature inside the car.
  • the anti-suffocation system of the vehicle can effectively prevent the child from suffocating due to excessive temperature in the vehicle and improve the survival chance of the child.
  • the in-vehicle anti-suffocation system further includes a door detection module 50, and the door detection module 50 is configured to output an enable signal to cause the control module 40 to switch from the sleep mode to the normal operation when the door lock is detected. mode.
  • the entire anti-suffocation system in the vehicle is in a dormant state to avoid false alarms and save energy.
  • the control module 40 is woken up, so that the entire system works normally.
  • the door detection module 50 passes the ECU (Electronic Control) Unit, electronic control unit, that is, the driving computer realizes that the driving computer transmits the collected door lock closing state information to the control module 40.
  • ECU Electronic Control
  • the communication module 30 is controlled to stop sending alarm information.
  • the child is rescued after the door is unlocked, and the communication module 30 does not need to send the alarm information again.
  • the child confirmation module 20 confirms that the child is locked in the automobile, and the communication module 30 continuously sends an alarm signal to the preset mobile phone within a preset interval by using the 4G communication method.
  • the communication module 30 adopts a 4G communication mode, and the communication speed is faster and the signal is more reliable. It is easy to understand that the communication module 30 can also adopt a communication mode such as 3G or 2G.
  • a plurality of mobile phone numbers can be set in the communication module 30 to send alarm information to a plurality of preset mobile phones.
  • control module 40 controls the onboard air conditioner to be turned off when the temperature detecting module 10 detects that the temperature in the automobile is lower than the second temperature threshold, and the second temperature threshold is smaller than the first temperature threshold.
  • the second temperature threshold is 15 °C.
  • the temperature detecting module 10 can also set a third temperature threshold, the third temperature threshold being less than the second temperature threshold. It is easy to understand that in some areas, the temperature in winter is very low. When the temperature in the car is low, for example, minus 10 ° C, in order to prevent frostbite in the car, when the temperature inside the car is lower than the third temperature threshold, the vehicle is turned on. The air conditioner raises the temperature inside the car and stabilizes the temperature inside the car in a more comfortable range.
  • the child confirmation module 20 employs a sound detection unit to confirm whether the child is stranded in the car.
  • the sound detecting unit uses a dual silicon microphone for sound collection, and the silicon microphone is disposed at different positions in the automobile.
  • the sound detecting unit further includes a signal amplifier and an analog-to-digital converter to amplify the acquired analog sound signal and convert the signal into a corresponding digital signal.
  • the sound detecting unit outputs the detected signal to the control module 40 to confirm that the child is inside the car.
  • the sound collection unit adopts a double silicon microphone (ie, silicon microphone 21 and silicon microphone 24), and is installed in different positions in the vehicle.
  • the double silicon wheat noise reduction method can well eliminate the false alarm caused by the sound interference outside the vehicle.
  • a signal amplifier 22 and an analog to digital converter 23 are provided;
  • a signal amplifier 25 and an analog to digital converter 26 are provided.
  • the technical solution of the present invention adopts an active anti-suffocation technical solution, that is, when the child confirmation module 20 confirms that a child is stuck in the car, the alarm information is continuously sent through the communication module 30, and the temperature in the car is also detected by the temperature detecting module 10.
  • the temperature inside the car is too high, the car air conditioner is actively turned on to lower the temperature, and the rescue personnel are prevented from being rescued in time.
  • the child in the car is suffocated due to lack of oxygen or too hot.
  • the present invention further provides an in-vehicle anti-suffocation method using the in-vehicle anti-asphyxia system, and the in-vehicle anti-suffocation method includes the following steps:
  • the child confirmation module 20 obtains information as to whether the child is retained in the car
  • Temperature information in the automobile acquired by the temperature detecting module 10
  • the alarm information is sent according to whether the child is stuck in the car, and the car air conditioner is turned on or off according to the temperature information.
  • the step of transmitting alarm information according to whether the child is in the car, and the step of turning on or off the car air conditioner according to the temperature information includes:
  • the information obtained by the child confirmation module 20 whether the child is retained in the car is implemented by the sound detecting unit.
  • the sound collection unit adopts a double silicon microphone (ie, silicon microphone 21 and silicon microphone 24), and is installed in different positions in the vehicle.
  • the double silicon wheat noise reduction method can well eliminate the false alarm caused by the sound interference outside the vehicle.
  • a signal amplifier 22 and an analog to digital converter 23 are provided; corresponding to the silicon microphone 24, a signal amplifier 25 and an analog to digital converter 26 are provided.
  • the alarm information is sent through the communication module 30.
  • the communication module 30 sends the alarm information to the preset mobile phone by using the 4G communication mode, and the communication module 30 can set multiple mobile phone numbers.
  • the alarm information is sent to a plurality of people; at the same time, the temperature information in the vehicle is acquired by the temperature detecting module 10, and when the temperature inside the vehicle exceeds the first temperature threshold, the vehicle air conditioner is turned on by the control module 40 to adjust the temperature inside the vehicle.
  • the vehicle air conditioner does not need to be turned on at this time, and the vehicle air conditioner is turned off by the control module 40.
  • the temperature detecting module may further set a third temperature threshold, the third temperature threshold being less than the second temperature threshold. It is easy to understand that in some areas, the temperature in winter is very low. When the temperature in the car is low, for example, minus 10 ° C, in order to prevent frostbite in children in the car, when the Wendy in the car is lower than the third temperature threshold, Turn on the car air conditioner to increase the temperature inside the car and stabilize the temperature inside the car in a more comfortable range.
  • the temperature detecting module 10 includes a temperature sensor 11, a signal amplifier 12 and an analog-to-digital converter 13.
  • the analog temperature data is collected by the temperature sensor, and the temperature analog signal is amplified by the signal amplifier, and the analog-to-digital converter amplifies the temperature analog signal. Output to control module 40.
  • the in-vehicle anti-suffocation method adopts all the technical solutions of the above-mentioned anti-suffocation system in the vehicle, and therefore has at least all the beneficial effects brought by the solution of the above embodiment, and will not be further described herein.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Emergency Alarm Devices (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Alarm Systems (AREA)

Abstract

一种车内防窒息***及车内防窒息方法，其中该车内防窒息***包括用于检测汽车内温度的温度检测模块（10）、用于确认是否有儿童被反锁在汽车内的儿童确认模块（20）、用于向预设手机发送报警信息的通信模块（30）及控制模块（40）；温度检测模块（10）、儿童确认模块（20）、通信模块（30）都与控制模块（40）电连接；控制模块（40）在温度检测模块（10）检测到汽车内温度超过第一温度阈值时控制车载空调开启；控制模块（40）还控制通信模块（30）发送报警信息。该车内防窒息***及车内防窒息方法能够提高儿童被滞留在汽车内的生存几率。

Description

车内防窒息***及车内防窒息方法
技术领域
本发明涉及汽车电子技术领域，特别涉及一种车内防窒息***及车内防窒息方法。
背景技术
随着汽车使用的普及，汽车成了越来越多家庭的标配代步工具。现有的一些预防幼童被遗留在车内的装置，这种装置只是通过短消息等方式报警，而这种报警不一定能得到及时的回应，甚至可能报警信息没有能成功传递到接收方，在当环境温度较高或汽车处于太阳照射时，车内温度会快速升高，容易导致遗留在车内的儿童被闷死或者热死，因此现有的预防方式存在隐患。
发明内容
本发明的主要目的是提供一种车内防窒息***，旨在消除儿童被滞留在汽车内时的安全隐患，防止车内高温对儿童的伤害。
为实现上述目的，本发明提出了一种车内防窒息***，所述车内防窒息***包括用温度检测模块、儿童确认模块、通信模块及控制模块；所述温度检测模块、所述儿童确认模块、所述通信模块都与所述控制模块电连接；其中，
所述温度检测模块，用于检测汽车内的温度；
所述儿童确认模块，用于确认是否有儿童被反锁在汽车内；
所述通信模块，用于发送报警信息；
在所述儿童确认模块确认有儿童被反锁在汽车内，所述控制模块在温度检测模块检测到汽车内温度超过第一温度阈值时控制车载空调开启；所述控制模块还控制所述通信模块发送报警信息。
优选地，所述车内防窒息***还包括车门检测模块，所述车门检测模块用于在检测到车门锁死时，输出使能信号使得所述控制模块从休眠模式切换到正常工作模式。
优选地，所述车门检测模块检测到车门解锁时，控制所述通信模块停止发送报警信息。
优选地，在所述儿童确认模块确认有儿童被反锁在汽车内，所述通信模块在预设间隔时间内不断发送报警信号至预设手机。
优选地，所述控制模块在温度检测模块检测到汽车内温度低于第二温度阈值时控制所述车载空调关闭。
优选地，所述通信模块内可设置多个手机号码以将报警信息发送至多个预设手机上。
优选地，所述儿童确认模块采用声音检测单元以确认儿童是否被滞留在汽车内。
优选地，所述声音检测单元采用双硅麦克风进行声音采集，所述硅麦克风设置于汽车内不同的位置。
本发明还提出一种车内儿童防窒息方法，应用于如上所述的车内防窒息***，所述车内防窒息方法包括以下步骤：
通过儿童确认模块获取儿童是否被滞留在汽车内的信息；
通过温度检测模块获取的汽车内的温度信息；
在所述儿童确认模块确认有儿童被反锁在汽车内，所述控制模块在温度检测模块检测到汽车内温度超过第一温度阈值时控制车载空调开启；所述控制模块还控制通信模块发送报警信息。
优选地，在所述儿童确认模块确认有儿童被反锁在汽车内，所述通信模块在预设间隔时间内不断发送报警信号至预设手机。
优选地，所述通信模块内可设置多个手机号码以将报警信息发送至多个预设手机上。
优选地，所述控制模块在温度检测模块检测到汽车内温度低于第二温度阈值时控制所述车载空调关闭。
优选地，所述儿童确认模块采用声音检测单元以确认儿童是否被滞留在汽车内。
优选地，所述声音检测单元采用双硅麦克风进行声音采集，所述硅麦克风设置于汽车内不同的位置。
优选地，所述车内防窒息***还包括车门检测模块，在所述“通过儿童确认模块获取儿童是否被滞留在汽车内的信息”之前还包括：
通过车门检测模块检测车门是否锁死，并在车门锁死时输出使能信号使得所述控制模块从休眠模式切换到正常工作模式。
优选地，所述车门检测模块检测到车门解锁时，控制所述通信模块停止发送报警信息。
优选地，所述根据儿童是否在汽车内的信息发送报警信息，根据温度信息开启或关闭车载空调的步骤具体包括：
确认儿童滞留在汽车内，发送报警信息；在确认儿童滞留在汽车内同时判断汽车内温度超过第一温度阈值时开启所述车载空调，在确认儿童滞留在汽车内同时判断汽车内温度低于第二温度阈值时关闭所述车载空调。
本发明技术方案通过设置所述温度检测模块、所述儿童确认模块、所述通信模块及所述控制模块，形成了一种车内防窒息***。在所述儿童确认模块确认有儿童被滞留在车内时，通信模块发送报警信息且温度控制模块检测汽车内的温度，在温度超过第一温度阈值时，所述控制模块开启车载空调以降低汽车内温度。在通信模块发出报警信息到儿童被救出汽车这段时间，该车内防窒息***能够有效防止车内温度过高而造成儿童窒息，消除了安全隐患。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图示出的结构获得其他的附图。
图1为本发明车内防窒息***一实施例的功能模块图；
图2为图1中温度检测模块的功能模块图；
图3为图1中儿童确认模块的功能模块图；
图4为本发明车内防窒息方法的流程图。
附图标号说明：
标号 名称 标号 名称
10 温度检测模块 40 控制模块
20 儿童确认模块 50 车门检测模块
30 通信模块 22 信号放大器
11 温度传感器 23 模数转换器
12 信号放大器 24 硅麦克风
13 模数转换器 25 信号放大器
21 硅麦克风 26 模数转换器
本发明目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明的一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
需要说明，在本发明中如涉及“第一”、“第二”等的描述仅用于描述目的，而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。另外，各个实施例之间的技术方案可以相互结合，但是必须是以本领域普通技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当人认为这种技术方案的结合不存在，也不在本发明要求的保护范围之内。
本发明提出一种车内防窒息***。
参照图1至图3，在本发明实施例中，该车内防窒息***包括温度检测模块10、儿童确认模块20、通信模块30、及控制模块40；所述温度检测模块10、所述儿童确认模块20、所述通信模块30都与所述控制模块40电连接；其中，所述温度检测模块10检测汽车内的温度；所述儿童确认模块20确认是否有儿童被反锁在汽车内；所述通信模块30发送报警信息。
当所述儿童确认模块20确认有儿童被反锁在汽车内，所述控制模块40在温度检测模块10检测到汽车内温度超过第一温度阈值时控制车载空调开启；所述控制模块40还控制所述通信模块30发送报警信息。
在本实施例中，接收报警信息的通信终端为手机，十分便捷和可靠。
当汽车停泊在太阳底下时，尤其在夏天车外温度较高时，车门关闭后车内温度迅速上升。若儿童被滞留在车内，其体内水分散失很快造成中暑，体内热量过度积蓄引起神经器官受损。在本实施例中，第一温度阈值设为30℃（摄氏度）。
需要说明的是，本发明实施例中，所述温度检测模块10包括温度传感器11、信号放大器12、及模数转换器13。通过温度传感器11采集模拟温度信号，通过信号放大器12对采集的温度信号进行放大并通过数模转换器13将模拟信号转换成数字信号输出至控制模块40。
本发明的儿童确认模块20可采用红外识别方式、座椅压力检测方式或语音识别方式等常用的识别确认方式来确认儿童是否滞留在汽车内。
在本发明实施例中，所述控制模块40采用单片机实现，实际应用中也可采用DSP等芯片实现。
本发明技术方案通过设置所述温度检测模块10、所述儿童确认模块20、所述通信模块30及所述控制模块40，形成了一种车内防窒息***。在所述儿童确认模块20确认有儿童被滞留在车内时，通信模块30发送报警信息且温度控制模块40检测汽车内的温度，在温度超过第一温度阈值时，所述控制模块40开启车载空调以降低汽车内温度。在通信模块30发出报警信息到儿童被救出汽车这段时间，该车内防窒息***能够有效防止车内温度过高而造成儿童窒息，提高了儿童的生存几率。
进一步地，所述车内防窒息***还包括车门检测模块50，所述车门检测模块50用于在检测到车门锁死时，输出使能信号使得所述控制模块40从休眠模式切换到正常工作模式。
需要说明的是，在车主正常使用汽车时，整个车内防窒息***处于休眠状态，以避免误报警，同时节约电能。当车门检测模块50在检测到车门锁死，且汽车处于熄火状态时，唤醒控制模块40，使得整个***正常工作。
在本实施例中，车门检测模块50通过ECU（Electronic Control Unit，电子控制单元），即行车电脑实现，行车电脑将采集到的车门锁关闭状态信息传输至控制模块40。
进一步地，所述车门检测模块50检测到车门解锁时，控制所述通信模块30停止发送报警信息。
需要说明的是，车门解锁后儿童获救，此时通信模块30无需再发送报警信息。
具体地，在所述儿童确认模块20确认有儿童被反锁在汽车内，所述通信模块30采用4G通信方式在预设间隔时间内不断发送报警信号至预设手机。
在本实施例中，所述通信模块30采用4G通信方式，其通信速度更快，信号更可靠。易于理解的是，通信模块30也可采用3G、2G等通信方式。
进一步地，所述通信模块30内可设置多个手机号码以将报警信息发送至多个预设手机上。
本实施例中，通过设置多个手机号码，防止个人漏接报警信息不能及时返回救出儿童。
进一步地，所述控制模块40在温度检测模块10检测到汽车内温度低于第二温度阈值时控制所述车载空调关闭，第二温度阈值小于第一温度阈值。
易于理解的是，在车内温度下降到一定温度后，无需再开启空调。在本实施例中，第二温度阈值为15℃。
进一步地，该温度检测模块10还可设定第三温度阈值，第三温度阈值小于第二温度阈值。易于理解的是，在某些地区，冬天气温很低，在汽车内温度较低时，例如零下10℃，为防止汽车内的儿童冻伤，在车内温度低于第三温度阈值时,开启车载空调以调高车内温度，并使汽车内的温度稳定在一个较舒适的范围内。
具体地，所述儿童确认模块20采用声音检测单元以确认儿童是否被滞留在汽车内。
进一步地，所述声音检测单元采用双硅麦克风进行声音采集，所述硅麦克风设置于汽车内不同的位置。
需要说明的是，该声音检测单元还包括信号放大器及模数转换器，以将采集的模拟声音信号进行放大后转换成对应的数字信号。当车内儿童由于缺氧或者感觉到太热等不适而啼哭时，声音检测单元将检测的信号输出至控制模块40，以确认儿童在汽车内。
声音采集单元采用双硅麦克风（即硅麦克风21、硅麦克风24），安装在车内不同位置，运用双硅麦降噪的方式可以很好的排除车外的声音干扰导致的误报警。对应所述硅麦克风21，设有信号放大器22和模数转换器23；对应所述硅麦克风24，设有信号放大器25和模数转换器26。
本发明技术方案采用了一种主动的防窒息技术方案，即在儿童确认模块20确认汽车内滞留有儿童时，不断通过通信模块30发送报警信息，同时还通过温度检测模块10检测汽车内的温度，在车内的温度过高时，主动开启车载空调以降低温度，防止营救人员营救不及时，车内儿童由于缺氧或者太热而导致窒息。
参照图4，本发明还提出一种应用所述车内防窒息***的车内防窒息方法，所述车内防窒息方法包括以下步骤：
儿童确认模块20获取儿童是否被滞留在汽车内的信息；
温度检测模块10获取的汽车内的温度信息；
根据儿童是否滞留在汽车内的信息发送报警信息，根据温度信息开启或不开启车载空调。
具体地，所述根据儿童是否在汽车内的信息发送报警信息，根据温度信息开启或不开启车载空调的步骤包括：
确认儿童滞留在汽车内，发送报警信息；在确认儿童滞留在汽车内同时判断汽车内温度，当汽车内温度超过第一温度阈值开启所述车载空调，当汽车内温度低于第二温度阈值关闭所述车载空调。
需要说明的是，在本实施例中，通过儿童确认模块20获取儿童是否被滞留在汽车内的信息采用声音检测单元来实现。声音采集单元采用双硅麦克风（即硅麦克风21、硅麦克风24），安装在车内不同位置，运用双硅麦降噪的方式可以很好的排除车外的声音干扰导致的误报警。对应所述硅麦克风21，设有信号放大器22和模数转换器23；对应所述硅麦克风24，设有信号放大器25和模数转换器26。
在确认儿童滞留在汽车内时，通过通信模块30发送报警信息，在本实施例中，通信模块30采用4G通信方式将报警信息发送到预设手机中，该通信模块30可设置多个手机号码以将报警信息发送至多人；同时通过温度检测模块10获取车内的温度信息，在车内温度超过第一温度阈值时，通过控制模块40开启车载空调以调节车内温度。
进一步地，在车内温度低于第二温度阈值时，此时无需再开启车载空调，通过控制模块40关闭车载空调。
更进一步地，该温度检测模块还可设定第三温度阈值，第三温度阈值小于第二温度阈值。易于理解的是，在某些地区，冬天气温很低，在汽车内温度较低时，例如零下10℃，为防止汽车内的儿童冻伤，在汽车内的温蒂低于第三温度阈值时，开启车载空调以调高车内温度，并使汽车内的温度稳定在一个较舒适的范围内。
其中温度检测模块10包括温度传感器11、信号放大器12及模数转换器13，通过温度传感器采集模拟温度数据，经过信号放大器对温度模拟信号进行放大后，模数转换器将放大后的温度模拟信号输出至控制模块40。
该车内防窒息方法采用了上述车内防窒息***全部技术方案，因此至少具有上述实施例方案所带来的所有有益效果，在此不再一一赘述。
以上所述仅为本发明的优选实施例，并非因此限制本发明的专利范围，凡是在本发明的发明构思下，利用本发明说明书及附图内容所作的等效结构变换，或直接/间接运用在其他相关的技术领域均包括在本发明的专利保护范围内。

Claims (17)

  1. 一种车内防窒息***，其特征在于，车内防窒息***包括用温度检测模块、儿童确认模块、通信模块及控制模块；所述温度检测模块、所述儿童确认模块、所述通信模块都与所述控制模块电连接；其中，
    所述温度检测模块，用于检测汽车内的温度；
    所述儿童确认模块，用于确认是否有儿童被反锁在汽车内；
    所述通信模块，用于发送报警信息；
    在所述儿童确认模块确认有儿童被反锁在汽车内，所述控制模块在温度检测模块检测到汽车内温度超过第一温度阈值时控制车载空调开启；所述控制模块还控制所述通信模块发送报警信息。
  2. 如权利要求1所述的车内防窒息***，其特征在于，所述车内防窒息***还包括车门检测模块，所述车门检测模块用于在检测到车门锁死时，输出使能信号使得所述控制模块从休眠模式切换到正常工作模式。
  3. 如权利要求2所述的车内防窒息***，其特征在于，所述车门检测模块检测到车门解锁时，控制所述通信模块停止发送报警信息。
  4. 如权利要求1所述的车内防窒息***，其特征在于，在所述儿童确认模块确认有儿童被反锁在汽车内，所述通信模块在预设间隔时间内不断发送报警信号至预设手机。
  5. 如权利要求4所述的车内防窒息***，其特征在于，所述通信模块内可设置多个手机号码以将报警信息发送至多个预设手机上。
  6. 如权利要求1所述的车内防窒息***，其特征在于，所述控制模块在温度检测模块检测到汽车内温度低于第二温度阈值时控制所述车载空调关闭。
  7. 如权利要求1所述的车内防窒息***，其特征在于，所述儿童确认模块采用声音检测单元以确认儿童是否被滞留在汽车内。
  8. 如权利要求7所述的车内防窒息***，其特征在于，所述声音检测单元采用双硅麦克风进行声音采集，所述硅麦克风设置于汽车内不同的位置。
  9. 一种车内防窒息方法，应用于如权利要求1所述的车内防窒息***，其特征在于，所述车内防窒息方法包括以下步骤：
    通过儿童确认模块获取儿童是否被滞留在汽车内的信息；
    通过温度检测模块获取的汽车内的温度信息；
    在所述儿童确认模块确认有儿童被反锁在汽车内，所述控制模块在温度检测模块检测到汽车内温度超过第一温度阈值时控制车载空调开启；所述控制模块还控制通信模块发送报警信息。
  10. 如权利要求9所述的车内儿童防窒息方法，其特征在于，在所述儿童确认模块确认有儿童被反锁在汽车内，所述通信模块在预设间隔时间内不断发送报警信号至预设手机。
  11. 如权利要求10所述的车内儿童防窒息方法，其特征在于，所述通信模块内可设置多个手机号码以将报警信息发送至多个预设手机上。
  12. 如权利要求9所述的车内儿童防窒息方法，其特征在于，所述控制模块在温度检测模块检测到汽车内温度低于第二温度阈值时控制所述车载空调关闭。
  13. 如权利要求9所述的车内儿童防窒息方法，其特征在于，所述儿童确认模块采用声音检测单元以确认儿童是否被滞留在汽车内。
  14. 如权利要求13所述的车内儿童防窒息方法，其特征在于，所述声音检测单元采用双硅麦克风进行声音采集，所述硅麦克风设置于汽车内不同的位置。
  15. 如权利要求9所述的车内儿童防窒息方法，其特征在于，所述车内防窒息***还包括车门检测模块，在所述“通过儿童确认模块获取儿童是否被滞留在汽车内的信息”之前还包括：
    通过车门检测模块检测车门是否锁死，并在车门锁死时输出使能信号使得所述控制模块从休眠模式切换到正常工作模式。
  16. 如权利要求15所述的车内防窒息方法，其特征在于，所述车门检测模块检测到车门解锁时，控制所述通信模块停止发送报警信息。
  17. 如权利要求9所述的车内儿童防窒息方法，其特征在于，所述根据儿童是否在汽车内的信息发送报警信息，根据温度信息开启或关闭车载空调的步骤具体包括：
    确认儿童滞留在汽车内，发送报警信息；在确认儿童滞留在汽车内同时判断汽车内温度超过第一温度阈值时开启所述车载空调，在确认儿童滞留在汽车内同时判断汽车内温度低于第二温度阈值时关闭所述车载空调。
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