阅读说明：本技术 一种车载环境监测装置 (Vehicle-mounted environment monitoring device ) 是由 田鋆 李彦奇 马文峰 李英 高士龙 周凯 张楠 王星皓 于 2020-04-17 设计创作，主要内容包括：本发明公开了一种车载环境监测单元装置,包括车内环境监测单元及车外终端设备,车外终端设备与车内环境监测单元采用无线通讯连接；车内环境监测单元包括二氧化碳传感器、温度传感器、湿度传感器及MCU；二氧化碳传感器、温度传感器、湿度传感器同时与MCU通讯连接,实时采集车内二氧化碳浓度、温度及湿度,并将采集的数据发送至MCU；MCU处理各传感器采集的数据,进行生命体检测,分析车内是否有生命体遗留,并实时判断车内环境对车内生命体的生命体征的风险程度；MCU与车载电脑通过CAN总线连接,MCU将数据处理结果实时传送至车载电脑；MCU同时与车外终端设备无线通讯连接。(The invention discloses a vehicle-mounted environment monitoring unit device, which comprises an in-vehicle environment monitoring unit and an out-vehicle terminal device, wherein the out-vehicle terminal device is connected with the in-vehicle environment monitoring unit by adopting wireless communication; the in-vehicle environment monitoring unit comprises a carbon dioxide sensor, a temperature sensor, a humidity sensor and an MCU; the carbon dioxide sensor, the temperature sensor and the humidity sensor are simultaneously in communication connection with the MCU, so that the concentration, the temperature and the humidity of carbon dioxide in the vehicle are collected in real time, and the collected data are sent to the MCU; the MCU processes data acquired by each sensor, performs life body detection, analyzes whether life bodies are left in the vehicle, and judges the risk degree of the environment in the vehicle to the vital signs of the life bodies in the vehicle in real time; the MCU is connected with the vehicle-mounted computer through a CAN bus and transmits a data processing result to the vehicle-mounted computer in real time; the MCU is simultaneously in wireless communication connection with the terminal equipment outside the vehicle.)

1. A vehicle-mounted environment monitoring unit device is characterized by comprising an in-vehicle environment monitoring unit, wherein the in-vehicle environment monitoring unit comprises a carbon dioxide sensor, a temperature sensor, a humidity sensor and an MCU (microprogrammed control unit); the carbon dioxide sensor, the temperature sensor and the humidity sensor are simultaneously in communication connection with the MCU, so that the concentration, the temperature and the humidity of carbon dioxide in the vehicle are collected in real time, and the collected data are sent to the MCU; the MCU is connected with the vehicle-mounted computer through a CAN bus.

2. The vehicle-mounted environment monitoring unit device according to claim 1, wherein the MCU processes data collected by the carbon dioxide sensor, the temperature sensor and the humidity sensor, judges whether a living body exists in the vehicle, judges the risk degree of the environment in the vehicle to the vital sign of the living body in the vehicle in real time, and transmits the data processing result to the vehicle-mounted computer in real time.

3. The vehicle-mounted environment monitoring unit device of claim 1, wherein the MCU is in communication connection with a vehicle-mounted computer through a CAN bus to acquire vehicle state information.

4. The on-board environmental monitoring unit of claim 1, wherein the on-board monitoring unit comprises an upper housing, a lower housing, and a PCB, the upper housing is detachably connected to the lower housing, the PCB is mounted in the lower housing, the carbon dioxide sensor, the temperature sensor, the humidity sensor, and the MCU are integrated on the PCB, and the PCB further integrates a power circuit, a WDT, L DO, and a DC/DC converter.

5. The vehicular environment monitoring unit device according to claim 4, wherein a plurality of oval holes are formed in both the upper housing and the lower housing of the vehicular interior monitoring unit.

6. The vehicular environment monitoring unit device according to claim 1, further comprising an off-board terminal device, wherein the off-board terminal device is connected to the in-board environment monitoring unit by wireless communication.

Technical Field

The invention belongs to the technical field of automobiles, and particularly relates to a vehicle-mounted environment monitoring device.

Background

In the case of automobile accidents, injury accidents that children and pets forget to stay in the automobile after a plurality of drivers leave the automobile occur. Meanwhile, accidents caused by sudden diseases and dangerous driving of drivers also occur frequently. Whether a vehicle is equipped with an Infant retention detection system is expected to be incorporated into euron cap (european new car evaluation procedure) in 2022 as one of the criteria for evaluating vehicle safety.

The function that life body left over in the car was noticed to people's attention to can't be realized reminding to the current configuration in the car, when having life body to leave over in the car, the car owner can't be notified and remind to cause a series of safety problems. Therefore, the design has science and technology sense and the practicality is strong, can improve vehicle safety, reminds whether the car has the life body to leave over in the main car to and whether the environment in the car is suitable for living and becomes the present technical problem that awaits the solution urgently.

Disclosure of Invention

The invention provides a vehicle-mounted environment monitoring unit device, which comprises three detection unit modules: the system comprises a carbon dioxide sensor, a temperature sensor and a humidity sensor, wherein the carbon dioxide sensor, the temperature sensor and the humidity sensor are used for comprehensively judging whether a living body is left in the automobile or not, analyzing the risk degree of the vehicle-mounted environment to the vital signs, and pushing information and the automobile state to a vehicle-mounted computer and a terminal device outside the automobile.

The invention is realized by the following technical scheme:

a vehicle-mounted environment monitoring unit device comprises an in-vehicle environment monitoring unit, wherein the in-vehicle environment monitoring unit comprises a carbon dioxide sensor, a temperature sensor, a humidity sensor and an MCU (microprogrammed control unit); the carbon dioxide sensor, the temperature sensor and the humidity sensor are simultaneously in communication connection with the MCU, so that the concentration, the temperature and the humidity of carbon dioxide in the vehicle are collected in real time, and the collected data are sent to the MCU; the MCU is connected with the vehicle-mounted computer through a CAN bus.

Furthermore, the MCU processes data collected by the carbon dioxide sensor, the temperature sensor and the humidity sensor, judges whether a living body exists in the vehicle, judges the risk degree of the environment in the vehicle to the vital sign of the living body in the vehicle in real time, and transmits the data processing result to the vehicle-mounted computer in real time.

Further, the MCU is in communication connection with the vehicle-mounted computer through the CAN bus to acquire vehicle state information.

Furthermore, the in-vehicle monitoring unit comprises an upper shell, a lower shell and a PCB, wherein the upper shell is detachably connected with the lower shell, the PCB is arranged in the lower shell, the carbon dioxide sensor, the temperature sensor, the humidity sensor and the MCU are integrated on the PCB, and the PCB is further integrated with a power supply circuit, a WDT (distributed winding) sensor, a L DO (data DO) converter and a DC/DC (direct current/direct current) converter.

Furthermore, a plurality of oval holes are formed in the upper shell and the lower shell of the in-vehicle monitoring unit.

Further, the vehicle-mounted environment monitoring unit device further comprises a vehicle exterior terminal device, and the vehicle exterior terminal device is connected with the vehicle interior environment monitoring unit in a wireless communication mode.

The working principle of the invention is as follows:

monitoring environmental data in the vehicle in real time through a carbon dioxide sensor, a temperature sensor and a humidity sensor; and transmitting the measured environmental data, namely the carbon dioxide concentration, the temperature and the humidity value in the vehicle to the MCU in real time.

Because if the life body exists in the vehicle, the life body breathes to generate carbon dioxide and consume oxygen, the vehicle-mounted environment monitoring device continuously detects the concentration of the carbon dioxide in the vehicle and sends the detected concentration value to the MCU, the MCU makes a judgment by detecting the change of the concentration of the carbon dioxide, and if the concentration of the carbon dioxide rises all the time, the existence of the life body in the vehicle can be confirmed.

In addition, on-vehicle environmental monitoring device can also detect car internal environment humidity, and the life body breathes can produce steam, also can increase car internal humidity, also can assist the life body who exists in the detection car whether being left over through detecting the humidity change.

Under the condition that a living body exists in the vehicle, if the environment in the vehicle is seriously deteriorated, for example, the concentration of carbon dioxide sharply rises and exceeds a threshold value, the temperature and humidity sharply rises and exceeds the threshold value, and the temperature sharply falls and exceeds the threshold value, the MCU can push emergency information to the terminal equipment outside the vehicle to prompt the vehicle owner or related personnel, and simultaneously sends an instruction to the vehicle-mounted computer to control the vehicle-mounted display to alarm and display, or open the air conditioner in the vehicle to ventilate and the like.

The present invention can realize the following functions.

1. The carbon dioxide concentration in the vehicle is monitored in real time through a carbon dioxide sensor.

2. And the temperature in the vehicle is monitored in real time through the temperature sensor.

3. The humidity in the vehicle is monitored in real time through a humidity sensor.

4. Environmental indexes in the vehicle are monitored in real time through the carbon dioxide sensor, the temperature sensor and the humidity sensor, and detected carbon dioxide concentration values and detected temperature and humidity values in the vehicle are sent to the MCU.

And 5, the MCU processes the data acquired by the sensor, judges whether a living body exists in the vehicle, and further judges the vital sign risk degree of the environment in the vehicle to the living body in the vehicle according to the detection value of the environment in the vehicle when judging that the living body exists in the vehicle.

6. When the fact that the environment in the vehicle can risk vital signs in the vehicle is judged, the MCU sends early warning information to the vehicle-mounted display device and the terminal equipment outside the vehicle at the same time, and personnel in the vehicle or an operator of the terminal equipment outside the vehicle is prompted to take emergency measures.

Drawings

FIG. 1 is a schematic diagram of an on-board environmental monitoring unit device according to the present invention,

figure 2 is a schematic view of the installation position of the environment monitoring unit in the vehicle,

FIG. 3 is a schematic structural diagram of an in-vehicle environment monitoring unit;

Detailed Description

The invention is further explained below with reference to the drawings and the embodiments.

As shown in fig. 1, a vehicle-mounted environment monitoring unit device includes an in-vehicle environment monitoring unit and an out-vehicle terminal device, wherein the out-vehicle terminal device is connected with the in-vehicle environment monitoring unit by wireless communication; the in-vehicle environment monitoring unit comprises a carbon dioxide sensor, a temperature sensor, a humidity sensor and an MCU; the carbon dioxide sensor, the temperature sensor and the humidity sensor are simultaneously in communication connection with the MCU, so that the concentration, the temperature and the humidity of carbon dioxide in the vehicle are collected in real time, and the collected data are sent to the MCU; the MCU processes data acquired by each sensor, performs life body detection, analyzes whether life bodies are left in the vehicle, and judges the risk degree of the environment in the vehicle to the vital signs of the life bodies in the vehicle in real time; the MCU is connected with the vehicle-mounted computer through a CAN bus and transmits a data processing result to the vehicle-mounted computer in real time; the MCU is simultaneously in wireless communication connection with the terminal equipment outside the vehicle.

The MCU is in communication connection with the vehicle-mounted computer through the CAN bus to acquire vehicle state information including whether the vehicle is in a flameout state or a parking state and the like; the MCU simultaneously feeds back data processing results including the detection results of the vital signs and the analysis results of the risk degree of the environment in the vehicle on the vital signs to the vehicle-mounted computer; when the environment in the vehicle is analyzed to have risks to vital signs, the MCU sends instructions to the vehicle-mounted computer to control the vehicle-mounted display to alarm and display.

MCU and the terminal equipment wireless communication outside the car are connected, when the analysis goes out that the car internal environment has the risk to vital sign, MCU sends information to the terminal equipment outside the car simultaneously.

As shown in fig. 2, the in-vehicle environment monitoring unit is installed at a handle I at the upper right side of the rear row in the vehicle.

As shown in FIG. 3, the in-vehicle monitoring unit comprises an upper shell, a lower shell and a PCB, wherein the upper shell and the lower shell are detachably connected, and the PCB is arranged in the lower shell.

The carbon dioxide sensor, the temperature sensor, the humidity sensor and the MCU are integrated on the PCB, the PCB is further integrated with a power supply circuit, a WDT (Watchdog Timer, a Timer circuit), L DO (low dropout regulator) and a DC/DC converter, the power supply circuit is respectively connected with the carbon dioxide sensor and L DO, &lTtTtransition = L "&gTt L &lTt/T &gTtDO through the DC/DC converter, the temperature sensor, the humidity sensor and the MCU are respectively connected, the WDT is connected with the MCU, and the MCU is connected with a vehicle CAN bus through a bus driver.

The upper shell and the lower shell are provided with a large number of oval holes, so that air flow in the shell can be accelerated, and environmental data in the automobile can be collected in time by a sensor in the PCB.

The technical parameters of the in-vehicle environment monitoring unit are shown in table 1:

TABLE 1

The working principle of the invention is as follows:

environmental indexes in the vehicle are monitored in real time through a carbon dioxide sensor and a temperature sensor and a humidity sensor; and the measured data such as the carbon dioxide concentration, the temperature and the humidity are transmitted to the MCU in real time, and on the premise of not influencing the normal behavior habit of a client, whether a living body exists in the vehicle or not and whether the environment in the vehicle is suitable for the living body retention or not are judged after the driver leaves the vehicle, and the warning feedback is carried out.

Monitoring environmental data in the vehicle in real time through a carbon dioxide sensor, a temperature sensor and a humidity sensor; and transmitting the measured environmental data, namely the carbon dioxide concentration, the temperature and the humidity value in the vehicle to the MCU in real time.

1. Because if the life body exists in the vehicle, the life body breathes to generate carbon dioxide and consume oxygen, the vehicle-mounted environment monitoring device continuously detects the concentration of the carbon dioxide in the vehicle and sends the detected concentration value to the MCU, the MCU makes a judgment by detecting the change of the concentration of the carbon dioxide, and if the concentration of the carbon dioxide rises all the time, the existence of the life body in the vehicle can be confirmed.

2. In addition, on-vehicle environmental monitoring device can also detect car internal environment humidity, and the life body breathes can produce steam, also can increase car internal humidity, also can assist the life body who exists in the detection car whether being left over through detecting the humidity change.

3. Under the condition that a living body exists in the vehicle, if the environment in the vehicle is seriously deteriorated, for example, the concentration of carbon dioxide sharply rises and exceeds a threshold value, the temperature and humidity sharply rises and exceeds the threshold value, and the temperature sharply falls and exceeds the threshold value, the MCU can push emergency information to the terminal equipment outside the vehicle to prompt the vehicle owner or related personnel, and simultaneously sends an instruction to the vehicle-mounted computer to control the vehicle-mounted display to alarm and display, or open the air conditioner in the vehicle to ventilate and the like.

The carbon dioxide concentration threshold, the temperature threshold and the humidity threshold in the vehicle are all preset numerical ranges suitable for living beings to live in the vehicle.

The present invention can realize the following functions.

1. The carbon dioxide concentration in the vehicle is monitored in real time through a carbon dioxide sensor.

2. And the temperature in the vehicle is monitored in real time through the temperature sensor.

3. The humidity in the vehicle is monitored in real time through a humidity sensor.

4. Environmental indexes in the vehicle are monitored in real time through the carbon dioxide sensor, the temperature sensor and the humidity sensor, and detected carbon dioxide concentration values and detected temperature and humidity values in the vehicle are sent to the MCU.

And 5, the MCU processes the data acquired by the sensor, judges whether a living body exists in the vehicle, and further judges the vital sign risk degree of the environment in the vehicle to the living body in the vehicle according to the detection value of the environment in the vehicle when judging that the living body exists in the vehicle.

6. When the fact that the environment in the vehicle can risk vital signs in the vehicle is judged, the MCU sends early warning information to the vehicle-mounted display device and the terminal equipment outside the vehicle at the same time, and personnel in the vehicle or an operator of the terminal equipment outside the vehicle is prompted to take emergency measures.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.

It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.

In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.