CN214565159U - Detection sensing system for life body in vehicle - Google Patents
Detection sensing system for life body in vehicle Download PDFInfo
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- CN214565159U CN214565159U CN202120358286.6U CN202120358286U CN214565159U CN 214565159 U CN214565159 U CN 214565159U CN 202120358286 U CN202120358286 U CN 202120358286U CN 214565159 U CN214565159 U CN 214565159U
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Abstract
The application provides a detection and sensing system for life bodies in a vehicle, which comprises a master control ECU control module and at least one sensing device arranged in a vehicle seat; the master control ECU control module is connected with the sensing device through a communication line; the sensing device comprises an ECU electronic controller and at least one conductor part with a capacitance sensing detection function and a heating function; the ECU electronic controller is connected with the conductor part and used for detecting the living body occupation state on the seat and sending the living body occupation state to the master control ECU control module; the master control ECU control module is used for detecting the working state of the vehicle, detecting whether a driver is out of seat or not and the opening and closing state of the vehicle door, and sending out a reminding signal and an emergency operation instruction by combining the occupying state of a life body. The application provides a life body detection perception system in car can effectively avoid the life body because of being forgotten the emergence that leads to stifling a class of accident in the car, has ensured safety by bus.
Description
Technical Field
The application relates to the technical field of automobile safety, in particular to a life detection sensing system in an automobile.
Background
In recent years, as automobiles move into more and more families, convenience is brought to people and a plurality of problems are brought to people. In particular, in recent years, accidents such as children, old people, persons with restricted ability to perform behaviors, pets, and the like are frequently caused by suffocation death caused by being left in a car, and the safety problem in riding needs to be particularly concerned. Therefore, how to effectively avoid the accidents is a problem which needs to be solved by technicians in the automobile industry.
Disclosure of Invention
The application aims to solve the problems and provides an in-vehicle life body detection sensing system.
The application provides a detection and sensing system for life bodies in a vehicle, which comprises a master control ECU control module and at least one sensing device arranged in a vehicle seat; the master control ECU control module is connected with the sensing device through a communication line;
the sensing device comprises an ECU (electronic control Unit) electronic controller and at least one conductor part with a capacitance sensing detection function and a heating function; the ECU electronic controller is connected with the conductor part and used for detecting the living body occupation state on the seat and sending the living body occupation state to the master control ECU control module;
and the master control ECU control module is used for detecting the working state of the vehicle, detecting whether a driver is out of seat or not and the opening and closing state of the vehicle door, and sending a reminding signal and an emergency operation instruction by combining the occupying state of the life body.
According to the technical scheme provided by some embodiments of the application, the reminding signal comprises a car light reminding signal, a loudspeaker reminding signal and a car door locking refusing signal.
According to the technical scheme provided by some embodiments of the application, the emergency operation instruction comprises a window opening instruction and a door unlocking instruction.
According to the technical scheme provided by certain embodiments of the application, the conductor part is provided with a plane spreading-shaped conductive loop.
According to the technical solution provided by some embodiments of the present application, the conductive loop includes a metal loop and/or a non-metal loop; the metal loop is metal cloth, metal wire or metal coating; the non-metal loop is a graphite film.
According to an aspect provided by some embodiments of the present application, the sensing device further includes an extension electrode; the expansion electrode is an enameled wire metal wire bundle, a conductive metal mesh, a conductive metal coating or a conductive metal film.
According to the technical scheme provided by some embodiments of the application, the communication line is a CAN Bus, a LIN Bus or a vehicle-mounted ethernet.
According to aspects of certain embodiments of the present disclosure, a sensing device includes a plurality of conductor portions; the plurality of conductor portions are mounted in the same car seat or in different car seats.
According to the technical scheme provided by some embodiments of the application, the position on the car seat where the conductor part can be installed comprises: a seat cushion, a backrest, a headrest and armrests.
Compared with the prior art, the beneficial effect of this application: according to the detection sensing system for the life bodies in the automobile, the master control ECU control module and the sensing device are arranged, the sensing device comprises the conductor part with the capacitance sensing detection function and the heating function, when the detection sensing system is used, the occupation state of the life bodies on the seat can be effectively detected, a reminding signal and an emergency operation instruction are sent according to the working state of the automobile, the state whether a driver is out of the seat or not and the opening and closing state of the automobile door, the occurrence of accidents of suffocation death caused by the fact that the life bodies are forgotten in the automobile is effectively avoided, and the riding safety is ensured.
Drawings
Fig. 1 is a schematic structural diagram of an in-vehicle living body detection and sensing system according to an embodiment of the present application;
FIG. 2 is a schematic circuit diagram of an ECU electronic controller of the in-vehicle living body detection and sensing system provided by the embodiment of the application;
fig. 3 is a control timing chart of an ECU electronic controller of the in-vehicle living body detection sensing system according to the embodiment of the present application.
Detailed Description
The following detailed description of the present application is given for the purpose of enabling those skilled in the art to better understand the technical solutions of the present application, and the description in this section is only exemplary and explanatory, and should not be taken as limiting the scope of the present application in any way.
Example 1
Referring to fig. 1, the embodiment provides an in-vehicle living body detecting and sensing system, which is mainly used for detecting a living body occupying state of a rear seat or a non-driver seat in an automobile. The in-vehicle life body detection sensing system comprises a master control ECU control module and at least one sensing device arranged in a vehicle seat; the master control ECU control module is connected with the sensing device through a communication line; the sensing device comprises an ECU electronic controller and at least one conductor part with a capacitance sensing detection function and a heating function; the conductor part is laid on the surface of the automobile seat and sleeved between the sponge bearing pads and faces to one side of the human body of the passenger; a capacitance sensing detection circuit is arranged in the ECU electronic controller and is used for controlling the capacitance sensing detection function of the conductor part; the ECU electronic controller is connected with the conductor part and used for detecting the living body occupation state on the seat and sending the living body occupation state to the master control ECU control module; the master control ECU control module detects the working state of the vehicle through the vehicle state monitoring module, detects the state of whether a driver leaves the seat or not through the driver monitoring module, detects the opening and closing state of the vehicle door through the vehicle door state monitoring module, and sends a reminding signal and an emergency operation instruction through the alarm module in combination with the living body occupation state; the vehicle working state comprises a parking flameout state and a normal driving state; the driver's off-seat state can be detected by an off-seat sensor.
The circuit schematic diagram of a control module of the ECU electronic controller is shown in FIG. 2, and the control module is provided with a heating power supply output end and a signal acquisition end; the control module is configured to alternately establish electrical connection between the heating power supply output end and the signal acquisition end and the conductor part at a set frequency, so that the conversion between the heating function and the capacitance sensing detection function is realized; fig. 3 is a control timing chart of the ECU electronic controller, where t is a time period, t2+ t1 is equal to t, the ECU electronic controller is configured to control the conductive body portion to perform the capacitance sensing detection function during a time period t1, and the ECU electronic controller is configured to control the conductive body portion to perform the heating function during a time period t 2. How the ECU electronic controller controls the conductor part to realize the capacitance sensing detection function and the heating function is only briefly described above, and the specific implementation manner is referred to in the utility model patent with the publication number of CN 210804135U.
In the prior art, a pressure sensor, a weight sensor and the like are mostly adopted to detect whether a person is on a seat, that is, whether the person is on the seat is identified by changing the state of the sensor through pressure, gravity and the like. The capacitive sensing detection has different detection principles, is irrelevant to weight, pressure, deformation and the like, adopts a frequency detection mode of an external oscillation circuit such as an RC oscillator and the like, adopts high-frequency oscillation voltage to drive a detection polar plate of the sensor, and judges the coupling quantity through an operation system by detecting the capacitive coupling condition of a human body to the detection polar plate under the driving frequency so as to further realize the judgment of the existence of the human body of a passenger by the sensor.
Further, the communication mode between the sensing device and the master control ECU control module may be a hard wire signal or a Bus signal, and preferably, the communication line is a CAN Bus, a LIN Bus or a vehicle-mounted ethernet.
Further, the conductor part is provided with a plane spread-out conductive loop.
Further, the conductive loop can be used as a heating loop and a sensing loop, and the conductive loop comprises a metal loop and/or a non-metal loop; the metal loop is metal cloth, metal wire or metal coating; the non-metal loop is a graphite film. In addition, the conductive loop can also be formed by printing metal or graphite slurry on the base material, and the printed lines of the metal or graphite slurry can be used as a detection loop, so that the sensing effect is achieved.
Further, the reminding signal comprises a car light reminding signal, a loudspeaker reminding signal and a car door locking refusing signal.
Further, the emergency operation instruction comprises a window opening instruction and a door unlocking instruction.
Further, in order to ensure the detection accuracy as the sensing detection function, the sensing device further comprises an extension electrode for identifying the human body identification judgment of the child seat on the seat; the expansion electrode is an enameled wire metal wire bundle, a conductive metal mesh, a conductive metal coating or a conductive metal film.
Further, one of the sensing devices includes a plurality of conductor portions; the plurality of conductor portions are mounted in the same car seat or in different car seats.
Further, the portion of the car seat where the conductor portion can be mounted includes: a seat cushion, a backrest, a headrest and armrests.
Furthermore, the conductor part can also have other electrical management functions at the same time. That is, the ECU electronic controller of the sensing device may not only have a capacitive sensing function for the seat, but also have other electrical management functions of the seat, such as controlling heating, ventilation, etc. of the seat.
The in-vehicle life body detection sensing system provided by the embodiment of the application comprises the following two working states when in use:
the first working state (the vehicle working state is a parking flameout state, the driver is in a driver off-seat state, and the door opening and closing state is a door locking state):
when the vehicle is in a parking flameout state, a driver is in an off-seat state, and the vehicle door is in a locked state, the master control ECU control module performs the starting and detection functions of the capacitance sensing detection function within a specific time (for example, 0-60s after the vehicle is locked). The occupancy state of the living body on the seat in the vehicle is detected through the sensing devices in the seats, namely whether living objects (such as people, pets, other living organisms and the like) remain is judged.
When the life object still exists in the vehicle, the main control ECU control module sends out a reminding signal and an emergency operation instruction. The sending of the reminding signal can be: the method comprises the steps of sending a car light reminding signal to control the car light to be turned on, sending a horn reminding signal to control the horn to sound, sending a car door locking refusing signal to remind and the like, and sending reminding notification information to a car owner or a specific reminded person (such as a guardian) in a different place through mobile equipment in a Bluetooth communication mode, an internet communication mode, a local area network communication mode, a wireless short wave communication mode and the like; the emergency operation instruction comprises the following steps: the automobile door unlocking method comprises the steps of opening an automobile door instruction and unlocking an automobile door instruction, and emergency rescue is achieved by controlling the automobile door to be opened and controlling the automobile door to be unlocked.
When it is found that there is no living object in the vehicle, the system then turns off the detection function and the communication function, and enters a power-saving sleep management state. At this time, the vehicle performs a normal locking function. Under this state, the general control ECU control module passes through on-vehicle storage battery power, and the capacitance sensing detection function operation of the sensing device in each seat in the time limit is carried out to the electric energy-saving management under the guarantee low-power consumption state avoids the excessive electric quantity loss to the storage battery in the car.
The second working state (the vehicle working state is a normal driving state, the driver is not out of the seat, the door opening and closing state is a door locking state):
when the vehicle is in a normal driving state, the sensing device in the seat can also detect the living body occupation state of each seat in the vehicle. Therefore, the independent control of safety functions such as safety belt pretension, safety air bag contact locking and the like when a traffic accident occurs can be determined according to whether the life body of each different seat is occupied or not.
It should be noted that, when the sensing device only has the capacitance sensing detection function, the ECU electronic controller included in the sensing device in the present application realizes the control of the capacitance sensing detection function of the conductor part by the excitation and potential monitoring of the MCU single chip microcomputer inside the sensing device on each conductor part; the specific working principle and the specific implementation process are common knowledge, and therefore, are not described herein again.
Example 2
The same parts of the in-vehicle living body detection and sensing system provided in this embodiment and embodiment 1 are not repeated, but the differences are: the sensing device in this embodiment has a resistance heating function in addition to the capacitance sensing detection function, and the resistance heating function and the capacitance sensing detection function can exist simultaneously in the same time period, and also can separately exist according to a functional instruction or seasonal temperature demand. The resistance type heating function specifically means that a metal loop is adopted as a functional device in a conductive loop of the conductor part, the metal loop is composed of metal wires, and correspondingly, a heating control circuit is arranged in the ECU electronic controller and used for controlling the resistance type heating function of the conductor part.
When the in-vehicle life body detection sensing system is in a second working state (the working state of the vehicle is a normal driving state, the state that a driver leaves the seat is not the driver, and the state that the door of the vehicle is opened and closed is a door locking state), the metal wire is heated through a heating control circuit in the ECU electronic controller in the normal driving process of the vehicle, and the effect of heating the seat in winter is achieved, so that the comfortable riding environment is provided.
In the Electronic Control Unit (ECU) of the sensing device in the embodiment, an MCU singlechip in the sensing device realizes switching control of a heating function and a capacitance type sensing detection function of a metal wire circuit of a conductor part through an associated locked H-bridge MOS circuit or an H-bridge relay group; the specific working principle and the specific implementation process are common knowledge, and therefore, are not described herein again.
The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the method and the core idea of the present application. The foregoing is only a preferred embodiment of the present application, and it should be noted that there are no specific structures which are objectively limitless due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes can be made without departing from the principle of the present invention, and the technical features mentioned above can be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention in other instances, which may or may not be practiced, are intended to be within the scope of the present application.
Claims (9)
1. A detection and sensing system for life bodies in a vehicle is characterized by comprising a master control ECU control module and at least one sensing device arranged in a vehicle seat; the master control ECU control module is connected with the sensing device through a communication line;
the sensing device comprises an ECU (electronic control Unit) electronic controller and at least one conductor part with a capacitance sensing detection function and a heating function; the ECU electronic controller is connected with the conductor part and used for detecting the living body occupation state on the seat and sending the living body occupation state to the master control ECU control module;
and the master control ECU control module is used for detecting the working state of the vehicle, detecting whether a driver is out of seat or not and the opening and closing state of the vehicle door, and sending a reminding signal and an emergency operation instruction by combining the occupying state of the life body.
2. The in-vehicle animator detection sensing system of claim 1, wherein the alert signals comprise a car light alert signal, a horn alert signal, and a door lock rejection signal.
3. The in-vehicle animator detection sensing system of claim 1, wherein the emergency operation command comprises a window open command and a door unlock command.
4. The in-vehicle living body detecting and sensing system as claimed in claim 1, wherein the conductor portion has a planar-spread-like conductive loop.
5. The in-vehicle living body detection and sensing system according to claim 4, wherein the conductive loop comprises a metal loop and/or a non-metal loop; the metal loop is metal cloth, metal wire or metal coating; the non-metal loop is a graphite film.
6. The in-vehicle living body detecting and sensing system according to claim 1, wherein the sensing device further comprises an extension electrode; the expansion electrode is an enameled wire metal wire bundle, a conductive metal mesh, a conductive metal coating or a conductive metal film.
7. The in-vehicle living body detection and perception system according to claim 1, wherein the communication line is a CANBus bus, a LINBus bus, or an in-vehicle ethernet.
8. The in-vehicle animator detection sensing system of claim 1, wherein one of the sensing devices comprises a plurality of conductor portions; the plurality of conductor portions are mounted in the same car seat or in different car seats.
9. The in-vehicle living body detecting and sensing system according to claim 8, wherein the portion of the vehicle seat where the conductor portion is mounted comprises: a seat cushion, a backrest, a headrest and armrests.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120358286.6U CN214565159U (en) | 2021-02-07 | 2021-02-07 | Detection sensing system for life body in vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120358286.6U CN214565159U (en) | 2021-02-07 | 2021-02-07 | Detection sensing system for life body in vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214565159U true CN214565159U (en) | 2021-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120358286.6U Active CN214565159U (en) | 2021-02-07 | 2021-02-07 | Detection sensing system for life body in vehicle |
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| Country | Link |
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| CN (1) | CN214565159U (en) |
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2021
- 2021-02-07 CN CN202120358286.6U patent/CN214565159U/en active Active
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