CN215894944U

CN215894944U - In-vehicle living body retention detection device

Info

Publication number: CN215894944U
Application number: CN202122111892.0U
Authority: CN
Inventors: 任飞; 曾立明
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-02
Filing date: 2021-09-02
Publication date: 2022-02-22
Anticipated expiration: 2031-09-02

Abstract

The utility model discloses a device for detecting in-vehicle living body detention, which comprises a sensor circuit module and a control circuit module, wherein the sensor circuit module comprises a data acquisition circuit, a millimeter wave living body detection sensor, an in-vehicle air detection sensor and a data transmission circuit, the control circuit module comprises a main control circuit and an action circuit, the data acquisition circuit transmits data detected by the millimeter wave living body detection sensor and the in-vehicle air detection sensor to the main control circuit through the data transmission circuit, and the main control circuit triggers the action circuit to drive a window motor to open a window and/or drive an alarm to send out an alarm signal according to the data detected by the millimeter wave living body detection sensor and the in-vehicle air detection sensor. The utility model can automatically send out an alarm or automatically open the window when the living body is locked and detained in the vehicle so as to ensure the safety of the detained living body in the vehicle.

Description

In-vehicle living body retention detection device

Technical Field

The utility model relates to the field of automotive electronic equipment, in particular to a device for detecting in-vehicle living body detention.

Background

With the improvement of living standard, cars have become the tools of riding instead of walk of more and more families, make things convenient for people's work and life trip.

However, due to negligence of drivers, accidents that living bodies such as children or pets are left in the car to be locked after the car is parked often occur, and accidents that the children or pets locked in the car are extremely easy to suffer from heatstroke, oxygen deficiency and the like which endanger life safety under the state that the car door and the car window are shut down when the car is shut down and parked.

Therefore, the prior art has yet to be improved.

SUMMERY OF THE UTILITY MODEL

In view of the defects of the prior art, the utility model aims to provide a device for detecting the detention of a living body in a vehicle, which aims to automatically send out an alarm or automatically open a window to ensure the safety of the detained living body in the vehicle when the living body in the vehicle is locked and detained.

In order to realize the purpose, the utility model adopts the following technical scheme:

a device for detecting in-vehicle living body detention is arranged in a vehicle and comprises a sensor circuit module and a control circuit module; the sensor circuit module comprises a data acquisition circuit, a millimeter wave living body detection sensor, an in-vehicle air detection sensor and a data sending circuit, wherein the millimeter wave living body detection sensor, the in-vehicle air detection sensor and the data sending circuit are electrically connected with the data acquisition circuit; the control circuit module comprises a main control circuit and an action circuit electrically connected with the main control circuit, the main control circuit is in communication connection with the data sending circuit, and the action circuit is electrically connected with a vehicle window motor and/or an alarm; the data acquisition circuit sends data detected by the millimeter wave in-vivo detection sensor and the in-vehicle air detection sensor to the master control circuit through the data sending circuit, and the master control circuit triggers the action circuit to drive the window motor to open the window and/or drive the alarm to send out an alarm signal according to the data detected by the millimeter wave in-vivo detection sensor and the in-vehicle air detection sensor.

The control circuit module further comprises a vehicle state monitoring circuit electrically connected with the main control circuit, and the vehicle state monitoring circuit acquires the current state of the vehicle.

The width of the action circuit for driving the window motor to open the window is smaller than the width of the hand which can be fully inserted.

Wherein, the alarm is the loudspeaker of car own.

The air purification device further comprises an air purification unit, wherein the air purification unit and the sensor circuit module are arranged in the same shell.

The in-vehicle air detection sensor comprises a carbon dioxide detection sensor used for detecting the concentration of carbon dioxide in the vehicle.

The in-vehicle air detection sensor also comprises a carbon monoxide detection sensor for detecting the concentration of carbon monoxide in the vehicle.

The action circuit comprises a window opening circuit unit and an alarm circuit unit, the window opening circuit unit is electrically connected with the window motor and used for driving the window motor to open the window, and the alarm circuit unit is connected with the alarm and used for driving the alarm to send alarm information.

The window opening circuit unit is respectively connected with a left rear window motor and a right rear window motor in the vehicle.

The alarm circuit unit also comprises an alarm short message sending circuit unit.

It is understood that within the scope of the present invention, the above-mentioned technical features of the present invention and those specifically described below (in the embodiments) can be combined with each other to constitute a new or preferred technical solution, to be limited to space, and not to be described in any more detail herein.

According to the in-vehicle living body detention detection device, whether a living body signal and the concentration of carbon dioxide in a vehicle exist in the vehicle is detected by arranging the millimeter wave living body detection sensor and the in-vehicle air detection sensor in the vehicle, when a living body exists in the vehicle and the concentration of the carbon dioxide in the vehicle exceeds a set threshold value, the action circuit is triggered to drive the window motor to open the window, so that external air enters the vehicle to avoid oxygen deficiency asphyxia of the living body in the vehicle after the window is descended and opened, and/or the action circuit is triggered to drive the alarm to send an alarm signal, so that a driver or personnel outside the vehicle can know that the living body in the vehicle is trapped to rescue. Thus, the in-vehicle living body detention detection device of the utility model ensures the safety of the in-vehicle detention living body.

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 the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic view showing the composition of a first embodiment of an in-vehicle living body stagnation detection apparatus according to the present invention;

FIG. 2 is a schematic diagram showing the composition of a second embodiment of the in-vehicle living body stagnation detection apparatus according to the present invention;

FIG. 3 is a schematic diagram showing the composition of a third embodiment of the in-vehicle living body stagnation detection apparatus according to the present invention;

FIG. 4 is a schematic diagram showing the principle of the operation circuit of the in-vehicle body stagnation detection device of the present invention.

Description of reference numerals:

100-a detection device, 1-a sensor circuit module, 11-a data acquisition circuit, 12-a millimeter wave living body detection sensor, 13-an in-vehicle air detection sensor, 131-a carbon dioxide detection sensor, 132-a carbon monoxide detection sensor, 14-a data transmission circuit, 2-a control circuit module, 21-a main control circuit, 22-an action circuit, 23-a vehicle state monitoring circuit, 221-a vehicle window opening circuit unit, 222-an alarm circuit unit, 3-an air purification unit, 4-a shell, 300-a vehicle window motor and 400-an alarm.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the 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.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In the present invention, unless expressly stated or limited otherwise, the terms "connected," "secured," and the like are to be construed broadly, and for example, "connected" may be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.

Referring to fig. 1, the present invention provides an in-vehicle living body stagnation detection apparatus 100, which is installed in a vehicle and includes a sensor circuit module 1 and a control circuit module 2.

The sensor circuit module 1 comprises a data acquisition circuit 11, a millimeter wave living body detection sensor 12, an in-vehicle air detection sensor 13 and a data transmission circuit 14, wherein the millimeter wave living body detection sensor 12, the in-vehicle air detection sensor 13 and the data transmission circuit 14 are electrically connected with the data acquisition circuit 11, the millimeter wave living body detection sensor 12 detects a living body signal in a vehicle, and the in-vehicle air detection sensor 13 detects the concentration of carbon dioxide in the vehicle. The control circuit module 2 comprises a main control circuit 21 and an action circuit 22 electrically connected with the main control circuit 21, the main control circuit 21 is in communication connection with the data transmission circuit 14, and the action circuit 22 is electrically connected with the window motor 300 and/or the alarm 400. The main control circuit 21 adopts a main control chip.

The data acquisition circuit 11 sends data detected by the millimeter wave in-vivo detection sensor 12 and the in-vehicle air detection sensor 13 to the main control circuit 21 through the data sending circuit 14, and the main control circuit 21 triggers the action circuit 22 to drive the window motor 300 to open a window and/or drive the alarm 400 to send an alarm signal according to the data detected by the millimeter wave in-vivo detection sensor 12 and the in-vehicle air detection sensor 13.

The millimeter wave living body detection sensor 12 detects whether a living body signal exists in the vehicle and sends the living body signal to the main control circuit 21, and the in-vehicle air detection sensor 13 detects the concentration of carbon dioxide in the vehicle and sends the carbon dioxide to the main control circuit 21. Meanwhile, a threshold value of the concentration of carbon dioxide in the vehicle is set in the main control circuit 21, and when a living body is detained in the vehicle and locked in the vehicle for a period of time, the concentration of carbon dioxide in the vehicle gradually rises.

As an embodiment, the conditions for triggering the operation circuit 22 to operate according to the embodiment of the present invention are:

the millimeter wave living body detection sensor 12 detects a living body signal in the vehicle;

the in-vehicle air detection sensor 13 detects that the concentration of carbon dioxide in the vehicle is greater than a set in-vehicle carbon dioxide concentration threshold value;

the main control chip 21 can determine that the living body is detained in the vehicle and is trapped in the vehicle, and then the action circuit 22 is triggered to drive the window motor 300 to open the window so that fresh air enters the vehicle, and/or the action circuit 22 is triggered to drive the alarm 400 to send out an alarm signal to prompt a driver or an outside person that the living body is trapped in the vehicle to carry out subsequent rescue work, so that the safety of the trapped living body in the vehicle is ensured.

The sensor circuit module 1 and the control circuit module 2 of this embodiment are separately disposed in the vehicle, for example, the sensor circuit module 1 is disposed at the armrest box position in the vehicle, and the control circuit module 2 is disposed at the left inner side or the front door. The sensor circuit module 1 and the control circuit module 2 have respective power supplies or respective power supply connection ports.

The data transmission circuit 14 of the present invention is connected to the master control circuit 21 through a LIN bus. For sending the data collected by the sensor to the main control circuit 21. Thus, LIN bus communication is adopted between the sensor circuit module 1 and the control circuit module 2, the cost is low, and long-distance transmission is realized. Further, the millimeter wave in-vivo detection sensor 12 and the data acquisition circuit 11 of the present embodiment are connected by an internal CAN communication line, and the in-vehicle air detection sensor 13 and the data acquisition circuit 11 are connected by an internal LIN communication line.

Preferably, the control circuit module 2 of the present invention further includes a vehicle state monitoring circuit 23 electrically connected to the main control circuit 21, and the vehicle state monitoring circuit 23 acquires a current state of the vehicle.

The vehicle state monitoring circuit 23 is connected to the control system of the vehicle itself to acquire the current state of the vehicle. The current state of the vehicle includes a running state, a stopped state, a window state, a door lock state, and the like.

After the triggering condition of the action circuit 22 according to the embodiment of the present invention is reached, the current window and door lock states are obtained from the vehicle state monitoring circuit 23, so as to further control whether the window motor 300 needs to be driven to open the window. If the main control chip 21 judges that the living body is detained in the current car and is trapped in the car, if the car window and the door lock are in the closed state, the car window motor 300 is driven to open the car window; if the main control chip 21 judges that the living body is detained in the current vehicle and is trapped in the vehicle, if the window or the door lock is in an open state, fresh air can enter the vehicle, and the window motor 300 does not need to be driven to open the window. This allows fine control of the opening of the window.

Preferably, the action circuit 22 drives the window motor 300 to open the window in a width smaller than the width that a human hand can fully extend into. Namely, the automobile window is opened by a gap, such as a gap with the width of one finger or two fingers, so that fresh air can enter the automobile window, and the automobile window can be prevented from being stolen.

Preferably, the alarm 400 of the present invention is a horn of the vehicle itself. Therefore, the automobile horn can be directly used for emitting a loud alarm signal, and people can easily find the alarm signal.

Preferably, the alarm 400 of the present invention is a multimedia voice speaker in an automobile. Therefore, voice alarm information can be sent out to prompt that the living body in the vehicle is trapped.

As shown in fig. 2, the living body stagnation detection device 100 in the vehicle of the present invention further includes an air cleaning unit 3, and the air cleaning unit 3 and the sensor circuit module 1 are provided in the same housing 4. The air purification unit 3 can purify air in the vehicle when the vehicle is normally used, so that the in-vehicle living body stagnation detection device 100 of the embodiment has the function of an air purifier, is placed at the position of the armrest box in the vehicle, and can purify air at ordinary times and rescue living bodies in the vehicle in emergency.

The in-vehicle air detection sensor 13 of the detection device 100 according to the present invention includes a carbon dioxide detection sensor 131 for detecting the concentration of carbon dioxide in the vehicle.

Further, the in-vehicle air detection sensor 13 further includes a carbon monoxide detection sensor 132 for detecting the concentration of carbon monoxide in the vehicle. The carbon monoxide detection sensor 132 transmits the detected carbon monoxide concentration signal in the vehicle to the main control circuit 21, and the main control circuit 21 compares the detected carbon monoxide concentration signal with a set carbon monoxide concentration threshold signal, and triggers an alarm or opens a vehicle window when the detected carbon monoxide concentration signal is greater than the set carbon monoxide concentration threshold signal. Therefore, when the fuel vehicle is not fully combusted to generate carbon monoxide in the vehicle, carbon monoxide poisoning can be avoided.

As shown in fig. 3, the operation circuit of the detecting device 100 of the present invention includes a 22-window opening circuit unit 221 and an alarm circuit unit 222; the window opening circuit unit 221 is electrically connected with the window motor 300 and is used for driving the window motor 300 to open a window; the alarm circuit unit 222 is connected to the alarm 400 for driving the alarm 400 to send out alarm information.

The window opening circuit unit 221 and the alarm circuit unit 222 may be respectively composed of a corresponding power driving circuit and a relay to automatically drive the window motor 300 and the alarm 400, respectively.

In this embodiment, the window opening circuit unit 221 is connected to a left rear window motor and a right rear window motor in the vehicle, respectively. Thus, the left rear window and the right rear window can be opened simultaneously after the triggering condition is met. It can be understood that the window opening circuit unit 221 may also be connected to the left front window motor and the right front window motor in the vehicle, respectively, so that all the windows in the front, the rear, the left, and the right can be opened simultaneously, and the ventilation area can be increased.

Further, the alarm circuit unit 222 of the present embodiment further includes an alarm short message transmission circuit unit. The alarm short message sending circuit unit can be a GSM communication module circuit, and the GSM communication module circuit wirelessly sends the alarm short message to a mobile phone of a driver to carry out in-vivo retention alarm prompt. So that the driver can timely and accurately acquire the alarm information.

According to the in-vehicle living body stagnation detection device 100 provided by the embodiment of the utility model, whether a living body signal and the concentration of carbon dioxide in a vehicle exist in the vehicle is detected by arranging the millimeter wave living body detection sensor 12 and the in-vehicle air detection sensor 13 in the vehicle, when a living body exists in the vehicle and the concentration of the carbon dioxide in the vehicle exceeds a set threshold value, the action circuit 22 is triggered to drive the window motor 300 to open a window, so that external air enters the vehicle to avoid oxygen deficiency and suffocation of the living body in the vehicle after the window is descended and opened, and/or the action circuit 22 is triggered to drive the alarm 400 to send an alarm signal, so that a driver or personnel outside the vehicle can know that the living body in the vehicle is trapped to rescue. The in-vehicle living body stagnation detection device 100 of the utility model ensures the safety of the in-vehicle living body stagnation.

The above description is only for clearly illustrating the utility model and is not therefore to be considered as limiting the scope of the utility model, and all embodiments are not intended to be exhaustive, and all equivalent structural changes made by using the technical solutions of the present invention or other related technical fields directly/indirectly applied under the concept of the present invention are included in the scope of the present invention.

Claims

1. A device for detecting in-vehicle living body detention, which is arranged in a vehicle, is characterized in that,

the sensor comprises a sensor circuit module and a control circuit module;

the sensor circuit module comprises a data acquisition circuit, a millimeter wave living body detection sensor, an in-vehicle air detection sensor and a data sending circuit, wherein the millimeter wave living body detection sensor, the in-vehicle air detection sensor and the data sending circuit are electrically connected with the data acquisition circuit;

the control circuit module comprises a main control circuit and an action circuit electrically connected with the main control circuit, the main control circuit is in communication connection with the data sending circuit, and the action circuit is electrically connected with a vehicle window motor and/or an alarm;

the data acquisition circuit sends data detected by the millimeter wave in-vivo detection sensor and the in-vehicle air detection sensor to the master control circuit through the data sending circuit, and the master control circuit triggers the action circuit to drive the window motor to open the window and/or drive the alarm to send out an alarm signal according to the data detected by the millimeter wave in-vivo detection sensor and the in-vehicle air detection sensor.

2. The in-vehicle living body stagnation detection device according to claim 1, wherein the control circuit module further comprises a vehicle state monitoring circuit electrically connected with the main control circuit, and the vehicle state monitoring circuit acquires a current state of a vehicle.

3. The in-vehicle living body stagnation detection device according to claim 1, wherein a width of the window motor driven by the operation circuit to open the window is smaller than a width into which a human hand can fully enter.

4. The in-vehicle living body stagnation detection device according to claim 1, wherein the alarm is an automobile's own horn.

5. The in-vehicle living body stagnation detection device according to claim 1 or 2, further comprising an air purification unit provided in the same housing as the sensor circuit module.

6. The in-vehicle living body stagnation detection device according to claim 1, wherein the in-vehicle air detection sensor includes a carbon dioxide detection sensor for detecting a carbon dioxide concentration in the vehicle.

7. The in-vehicle living body stagnation detection device according to claim 6, wherein the in-vehicle air detection sensor further includes a carbon monoxide detection sensor that detects a carbon monoxide concentration in the vehicle.

8. The in-vehicle living body stagnation detection device according to claim 1, wherein the action circuit includes a window opening circuit unit and an alarm circuit unit;

the car window opening circuit unit is electrically connected with the car window motor and is used for driving the car window motor to open the car window;

the alarm circuit unit is connected with the alarm and used for driving the alarm to send out alarm information.

9. The in-vehicle living body stagnation detection device according to claim 8, wherein the window opening circuit units are connected to a left rear window motor and a right rear window motor in the vehicle, respectively.

10. The in-vehicle living body stagnation detection device according to claim 8, wherein the alarm circuit unit further includes an alarm short message transmission circuit unit.