KR102417909B1 - Apparatus for detecting passenger in a vehicle, alarm system and method using it - Google Patents

Abstract

The present invention relates to a vehicle passenger detection device, an alarm system using the same, and a method therefor, wherein a plurality of receiving antennas are mounted on both sides of a single transmitting antenna on a single printed circuit board (PCB), but a plurality of 's receiving antenna is implemented so that both sides of the PCB are bent to have a different orientation angle from the transmitting antenna, thereby minimizing the distance between the receiving antennas to provide a vehicle passenger detection device that enables miniaturization.
To this end, the present invention provides an apparatus for detecting passengers in a vehicle, comprising: a single radar transmitting antenna; a first radar receiving antenna having a first detection area within the vehicle; a second radar receiving antenna having a second detection area within the vehicle; and a controller for detecting passengers by analyzing the reflected wave received from the first radar receiving antenna and the reflected wave received from the second radar receiving antenna, respectively.

Description

Vehicle occupant detection device, alarm system using same, and method thereof

The present invention relates to an apparatus for detecting passengers in a vehicle, an alarm system using the same, and a method thereof, and more particularly, to a technology for detecting and alerting passengers in a vehicle using an Ultra Wide Band (UWB) radar.

If you stop your vehicle on the roadside for a while and go to a hospital or pharmacy to do business, it often happens that you inevitably leave a small child (hereinafter referred to as an "infant") alone in the vehicle.

In particular, when an infant is sleeping in a vehicle, it is more difficult to do chores with the child. Therefore, usually leave the sleeping child alone in the vehicle and raise all the windows of the vehicle to prevent external dust from entering the interior of the vehicle. After taking the , in case of any contingency that may arise (a child may wake up and open the door), activate the child lock system to prevent the door from being opened from inside the vehicle and then leave the vehicle. do.

At this time, they lock the door to prevent outsiders from opening the door and leave the vehicle. Often, the infant is left alone without realizing how dangerous it is to be alone in the vehicle. In many cases, a long time passes by forgetting the fact that it was left in the vehicle.

In this case, the indoor temperature of the vehicle increases due to solar heat, and especially in summer, the temperature rises rapidly and breathing becomes difficult. do.

According to a research study, when a child left alone in a car faces such a suffocation accident, he bursts out crying and pulls the door lever to escape the vehicle. In addition, while breathing in an enclosed space for a long time, the oxygen in the vehicle gradually decreases, while the concentration of carbon dioxide emitted from the infant during respiration gradually increases, which eventually makes breathing impossible.

Moreover, if an adult leaves the vehicle with the engine turned on and the air conditioner or heater is turned on, the interior of the vehicle is filled with poisonous gas that is fatal to infants, and it is said that the time for infants to die is much earlier.

As a conventional technology to solve this problem, a technology for detecting the presence of a passenger in a vehicle by mounting a pressure sensor on each seat of the vehicle has been developed, but this conventional technology requires a plurality of pressure sensors, and each pressure sensor There is a problem in that the implementation complexity is high because it has to be mounted on each seat.

Republic of Korea Patent Publication No. 2017-0053588

In order to solve the problems of the prior art as described above, the present invention mounts a plurality of receive antennas on both sides of a single transmit antenna on a single printed circuit board (PCB), but the plurality of receive antennas transmit An object of the present invention is to provide an apparatus for detecting passengers in a vehicle that enables miniaturization by minimizing the distance between receiving antennas by implementing so that both sides of the PCB are bent to have different directivity angles from the antenna.

In addition, the present invention prevents the driver from leaving the vehicle while leaving the passenger unattended by installing the above-described passenger detection device in the interior of the vehicle and warning the driver when a passenger is detected in the vehicle. Another object of the present invention is to provide an alarm system for a vehicle capable of doing so and a method therefor.

The objects of the present invention are not limited to the objects mentioned above, and other objects and advantages of the present invention not mentioned can be understood by the following description, and will be more clearly understood by the examples of the present invention. It will also be readily apparent that the objects and advantages of the present invention may be realized by the means and combinations thereof indicated in the appended claims.

According to an aspect of the present invention, there is provided an apparatus for detecting passengers in a vehicle, comprising: a single radar transmitting antenna; a first radar receiving antenna having a first detection area within the vehicle; a second radar receiving antenna having a second detection area within the vehicle; and a controller for detecting passengers by analyzing the reflected wave received from the first radar receiving antenna and the reflected wave received from the second radar receiving antenna, respectively.

Here, the single radar transmitting antenna, the first radar receiving antenna, the second radar receiving antenna, and the controller may be mounted on one printed circuit board (PCB). In this case, the single radar transmitting antenna and the controller may be mounted on a main body of a PCB, the first radar receiving antenna may be mounted on one end of the PCB, and the second radar receiving antenna may be mounted on the other end of the PCB.

In addition, a bent structure may be formed between one end of the PCB and the main body of the PCB, and a bent structure may be formed between the other end of the PCB and the main body of the PCB.

In addition, the first radar receiving antenna may detect passengers located in the second and third rows on the right side of the vehicle.

In addition, the second radar receiving antenna may detect passengers located in the second and third rows on the left side of the vehicle.

According to another aspect of the present invention, there is provided an apparatus for an alarm system for a vehicle, comprising: an input unit for receiving an operation signal from a user; an alarm unit outputting an alarm sound; The angle of inclination between the main body of the PCB (Printed Circuit Board) on which a single radar transmitting antenna is mounted and one end of the PCB on which the first radar receiving antenna is mounted, the body of the PCB and the second radar receiving antenna on which the PCB is mounted. a driving unit for respectively adjusting a bending angle between the other ends; and a control unit for controlling the driving unit to set a bending angle corresponding to a user's manipulation signal, and for controlling the alarm unit to notify the driver when a passenger is detected.

Here, the first radar receiving antenna may detect passengers located in the second and third rows on the right side of the vehicle.

In addition, the second radar receiving antenna may detect passengers located in the second and third rows on the left side of the vehicle.

According to an aspect of the present invention, there is provided a method for alarming a vehicle, the method comprising the steps of: an input unit receiving a manipulation signal from a user; controlling the driving unit so that the control unit sets a bending angle corresponding to the user's manipulation signal; The bending angle between the main body of the PCB (Printed Circuit Board) on which the driving unit is mounted with a single radar transmitting antenna and one end of the PCB on which the first radar receiving antenna is mounted, the main body of the PCB and the second radar receiving antenna are mounted adjusting each bending angle between the other ends of the PCB; and an alarm unit notifying the driver as a passenger is detected in the vehicle.

In the present invention as described above, a plurality of receiving antennas are mounted on both sides of a single transmitting antenna as a center on a single printed circuit board (PCB), but the plurality of receiving antennas have different orientation angles from those of the transmitting antennas. By implementing so that both sides of the PCB are bent, the distance between the receiving antennas is minimized to enable miniaturization.

In addition, the present invention can prevent the driver from leaving the vehicle while leaving the passenger unattended by installing the vehicle's passenger detection device inside the vehicle and warning the driver when a passenger is detected in the vehicle. there is an effect

In addition, the present invention has the effect of improving the convenience of the driver by identifying the number and location of passengers using the vehicle passenger detection device and providing the information to the driver.

In addition, the present invention detects the entire area of the vehicle interior using a single passenger detection device, so that the implementation complexity is low compared to a method of detecting a passenger by installing an ultrasonic sensor or a weight sensor for each seat.

In addition, the present invention detects passengers in all areas of the interior of the vehicle using one passenger detection device, thereby reducing the number of parts for implementing the passenger detection and warning system, thereby reducing the weight of the system, simplifying the process, and reducing the cost. There is an effect that can be created.

1 is an exemplary view schematically showing the exterior of a vehicle to which the present invention is applied;
2 is an exemplary view showing the internal structure of a vehicle to which the present invention is applied;
3 is a structural diagram of an embodiment of an apparatus for detecting passengers in a vehicle according to the present invention;
4 is an exemplary view of a detection area of a vehicle passenger detection device according to the present invention;
5 and 6 are exemplary views for explaining the process of installing the vehicle passenger detection device according to the present invention to the vehicle;
7 is an exemplary view of an in-vehicle installation position of the vehicle occupant detection device according to the present invention;
8 is a configuration diagram of an alarm system using a passenger detection device according to an embodiment of the present invention;
9 is a flowchart of an embodiment of a method for warning a vehicle occupant detection according to the present invention;
10 is a block diagram illustrating a computing system for executing a method for warning a vehicle occupant detection according to an embodiment of the present invention.

Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. In adding reference numerals to the components of each drawing, it should be noted that the same components are given the same reference numerals as much as possible even though they are indicated on different drawings. In addition, in describing the embodiment of the present invention, if it is determined that a detailed description of a related known configuration or function interferes with the understanding of the embodiment of the present invention, the detailed description thereof will be omitted.

In describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), (b), etc. may be used. These terms are only for distinguishing the elements from other elements, and the essence, order, or order of the elements are not limited by the terms. In addition, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. Terms such as those defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present application. does not

1 is an exemplary view schematically showing the exterior of a vehicle to which the present invention is applied.

Referring to FIG. 1 , a vehicle 1 may include a vehicle body 10 forming an exterior and wheels 12 and 13 for moving the vehicle 1 .

The vehicle body 10 includes a hood 11a that protects various devices necessary for driving the vehicle 1, such as an engine, a motor, a battery, and a transmission, a roof panel 11b that forms an interior space, and a trunk lid with a storage space ( 11c), it may include a front fender 11d and a quarter panel 11e provided on the side of the vehicle 1 . In addition, a plurality of doors 15 coupled to the vehicle body may be provided on the side surface of the vehicle body 11 .

A front window 19a providing a view of the front of the vehicle 1 is provided between the hood 11a and the roof panel 11b, and a rear view is provided between the roof panel 11b and the trunk lid 11c. A rear window 19b may be provided. In addition, a side window 19c providing a side view may be provided above the door 15 .

In addition, a headlamp 15 (Headlamp) for irradiating illumination in the traveling direction of the vehicle 1 may be provided in front of the vehicle 1 .

In addition, a turn signal lamp (16) for indicating a traveling direction of the vehicle 1 may be provided at the front and rear of the vehicle 1 .

The vehicle 1 may display the direction in which the direction indicator lamp 16 flickers. In addition, a tail lamp 17 may be provided at the rear of the vehicle 1 . The tail lamp 17 may be provided at the rear of the vehicle 1 to display a gear shift state, a brake operation state, and the like of the vehicle 1 .

The exterior of the vehicle body may further include side mirrors 18a and 18b that provide the driver with a view of the rear of the vehicle 1 .

In the case of an electric vehicle, the vehicle 1 may include an engine, a motor, a battery, and a transmission. The control unit 160 performs CAN (Controller Area Network) communication with a battery control unit (not shown) to obtain an engine. , it may be configured to transmit power to the vehicle 1 by controlling the states of the motor, battery, and transmission.

2 is an exemplary view showing an internal structure of a vehicle to which the present invention is applied.

As shown in FIG. 2 , the interior 120 of the vehicle body includes the seat 121 on which the occupant sits, the dashboard 122, and the dashboard, and displays a tachometer, a speedometer, a coolant thermometer, a turn indicator, and a high beam. The instrument panel (i.e. cluster, 123) with lights, warning lights, seat belt warning lights, odometer, odometer, automatic shift selector indicator light, door open warning light, engine oil warning light, low battery warning light, and the vehicle (1) It includes a steering wheel 124 to operate, a center fascia 125 in which an air vent and a control plate are disposed and an audio device is disposed.

The seat 121 includes a driver's seat 121a on which the driver sits, a passenger seat 121b on which a passenger sits, and a rear seat located at the rear of the vehicle 1 .

The cluster 123 may be implemented digitally. That is, the digital cluster 123 may display vehicle 1 information and driving information as an image, and may display the drivable distance of the vehicle 1 calculated based on the battery charge amount.

The center fascia 125 is a portion of the dashboard 122 positioned between the driver's seat 121a and the passenger seat 121b.

A head unit 126 for controlling the air conditioner and the heater may be provided in the center fascia 125 .

Various buttons for controlling the air conditioner and the heater may be disposed on the head unit 126 .

A controller for controlling the air conditioner and the heater may be disposed inside the head unit 126 .

The head unit 126 may include an audio device 130 performing a radio function, an input unit 130a for receiving an operation command of the audio device 130 , and a display unit 130b for displaying operation information. ) may be included. In this case, the audio device 130 provided in the vehicle 1 may be a head unit having a radio function or an AVN (Audio Video Navigation) terminal which is a vehicle terminal having a radio function.

The audio device 130 may receive a broadcast signal and output a broadcast. 2 exemplifies a case in which the audio device 130 is provided in the center fascia 125, and the speaker 134 that receives the broadcast signal from the audio device 130 and outputs the broadcast is to be installed on the front door of the vehicle. can However, since FIG. 2 is only an example of a location where the speaker 134 is installed, the speaker may be installed anywhere inside the vehicle.

Here, the display unit 130b may display operation information of the air conditioner and the heater. Also, an interface generated in relation to the operation of the vehicle may be displayed on the display unit 130b, and an interface for the drivable distance of the vehicle 1 may be displayed.

In the center fascia 125, a vent, a cigar jack, etc. may be installed. In addition, the center fascia 125 may be provided with a multi-terminal 127 to which an external device including a user's terminal (not shown) is connected by wire. That is, the multi-terminal 127 enables wired communication between the head unit 126 or the vehicle terminal 140 and the user's terminal (not shown).

Here, the multi-terminal 127 includes a USB port, an AUX terminal, and may further include an SD slot, and is disposed adjacent to the head unit 126 and may also be disposed adjacent to the vehicle terminal 140 , , may be electrically connected to the vehicle terminal 140 and an external device through a connector or a cable.

The external device includes a storage device, a user terminal, an MP3 player, and the like, and the storage device includes a card-type memory and an external hard disk.

In addition, the user terminal included in the external device is a mobile communication terminal, and includes a smart phone, a notebook computer, a tablet, and the like. The vehicle 1 may further include a manipulation unit 128 for receiving operation commands for various functions.

The operation unit 128 may be provided on the head unit 126 and the center fascia 125, and includes at least one physical button such as an operation on/off button for various functions, a button for changing the setting values of various functions, and the like. do. The manipulation unit 128 may transmit a button manipulation signal to the controller in the head unit 126 or the vehicle terminal 140 . That is, the operation unit 128 may receive an operation on/off command of the vehicle terminal 140 , select at least one function among a plurality of functions, and transmit the selected function to the vehicle terminal 140 .

For example, when the navigation function is selected, the operation unit 128 receives destination information and transmits the input destination information to the vehicle terminal 140 , and receives the broadcast channel and volume information when selecting the DMB function and receives the input broadcast channel and transmits the volume information to the vehicle terminal 140 , receives radio channel and radio volume information when a radio function is selected, and transmits the input radio channel and volume information to the vehicle terminal 140 or the display unit 130b.

The manipulation unit 128 may include a touch panel provided integrally with the display unit of the vehicle terminal. The manipulation unit 128 may be activated and displayed in the form of a button on the display unit of the vehicle terminal 140 , and at this time, location information of the displayed button is received.

The manipulation unit 128 may further include a jog dial (not shown) or a touch pad for inputting a cursor movement command and a selection command displayed on the display unit of the vehicle terminal 140 . The manipulation unit 128 may transmit a manipulation signal of the jog dial or a touch signal touched on the touch pad to the vehicle terminal 140 .

Here, the jog dial or the touch pad may be provided on the center fascia or the like. The operation unit 128 may receive an automatic channel change command when performing a radio function.

In addition, the user may input a control command for changing the driving mode of the vehicle 1 through the manipulation unit 128 , and may also input a control command for each configuration of the vehicle 1 .

The display unit 130b displays operation information of the head unit 126 and displays input information input to the operation unit 128 .

For example, the display unit 130b displays radio channel and radio volume information input by the user when a radio function is selected.

The display unit 130b may display input information of an automatic channel change command and automatic channel change execution information when a radio function is performed.

The vehicle terminal 140 may be mounted on a dashboard.

The vehicle terminal 140 performs an audio function, a video function, a navigation function, a DMB function, a radio function, and a GPS reception function.

The chassis of the vehicle 1 includes a power generating device, a power transmission device, a driving device, a steering device, a braking device, a suspension device, a transmission device, a fuel device, front and rear left and right wheels, and the like.

In addition, the vehicle 1 may be provided with various safety devices for the safety of the driver and passengers.

The safety devices of the vehicle 1 include an airbag control device for the purpose of safety of occupants such as the driver in case of a vehicle collision, and an electronic stability control device (ESC) that controls the attitude of the vehicle when accelerating or cornering the vehicle. There are several types of safety devices.

In addition, the vehicle 1 includes a proximity sensor for detecting rear or lateral obstacles and other vehicles, a rain sensor for detecting the presence and amount of precipitation, a wheel speed sensor for detecting the speed of front and rear left and right wheels, and an acceleration sensor for detecting the acceleration of the vehicle , it is also possible to further include a sensing device such as an angular velocity sensor for sensing the steering angle of the vehicle.

The vehicle 1 is an electronic device that controls the driving of a power generating device, a power transmission device, a driving device, a steering device, a braking device, a suspension device, a transmission device, a fuel device, a battery control device, various safety devices, and various sensing devices. Includes an Electronic Control Unit (ECU).

In addition, the vehicle 1 may further include an electronic device such as a hands-free device, a Bluetooth device, a rear camera, a charging device for a user terminal, and a high-pass device installed for the convenience of the driver.

The vehicle 1 may further include a start button for inputting an operation command to a starter motor (not shown). That is, when the start button is turned on, the vehicle 1 operates a starter motor (not shown) and drives an engine (not shown), which is a power generating device, through the operation of the starter motor.

The vehicle 1 may include a battery (not shown) electrically connected to a terminal, an audio device, an indoor lamp, a starter motor, and other electronic devices to supply driving power.

A battery for driving the vehicle 1 is used in the electric vehicle, and the electric vehicle may be driven by charging electricity to the battery and driving a motor using the charged electricity. Such a battery may be charged using its own generator or engine power while driving, and may be charged at an electric charging station prior to driving.

In addition, the vehicle 1 may further include a communication device for communication between various internal electronic devices and for communication with a user terminal that is an external terminal. Such a communication device may include a CAN communication module, a Wi-Fi communication module, a USB communication module, and a Bluetooth communication module. In addition, the communication device may further include a broadcasting communication module such as TPEG, SXM, RDS such as DMB.

3 is a structural diagram of an embodiment of an apparatus for detecting a vehicle occupant according to the present invention.

As shown in FIG. 3 , the vehicle passenger detection device according to the present invention includes a radar transmitting antenna 32 , a first radar receiving antenna 33 , a second radar receiving antenna 34 , and a controller 35 . include

Looking at each of the components, first, the radar transmitting antenna 32 is located near the center on a rectangular printed circuit board (PCB) 31, for example, and detects a passenger located in the vehicle under the control of the controller 35. A transmission wave 321 is emitted for

The first radar receiving antenna 33 is, for example, located on one side of the radar transmitting antenna 32 on the PCB 31, and the transmitted wave emitted from the radar transmitting antenna 32 is reflected by an object and returns a reflected wave. . The first radar receiving antenna 33 may serve to detect passengers (people, animals) located in the second and third right rows of the vehicle, and to detect passengers located in the left and right seats of the second row. can also be done That is, the detection area 331 of the first radar receiving antenna 33 may be in the second and third right rows of the vehicle, or may be the left and right seats in the second row of the vehicle. In this case, the area S of the detection area 331 may be calculated through the equation (S=πab), and may be appropriately adjusted according to the size of the vehicle within an area of up to 8πm 2 . For example, the detection area 331 of the first radar receiving antenna 33 is as shown in FIG. 4 .

The second radar receiving antenna 34 is, for example, located on the other side of the radar transmitting antenna 32 on the PCB 31 , and receives a reflected wave in which a transmitted wave emitted from the radar transmitting antenna 32 is reflected by an object and returned. . The second radar receiving antenna 34 may serve to detect passengers (people and animals) located in the second and third rows on the left side of the vehicle, and serves to detect passengers located in the left and right seats of the third row. can also be done That is, the detection area 341 of the second radar receiving antenna 34 may be in the second and third rows on the left side of the vehicle, or the left and right seats in the third row of the vehicle. In this case, the area S of the detection area 341 can be calculated through the equation (S=πab), and can be appropriately adjusted to fit the size of the vehicle within an area of up to 8πm2. For example, the detection area 341 of the second radar receiving antenna 34 is as shown in FIG.

The controller 35 is located at the lower end of the radar transmission antenna 32 on the PCB 31, for example, and may include a memory (not shown) storing various algorithms (logic, programs) used to detect passengers. have.

In this case, the memory is a flash memory type, a hard disk type, a solid state disk type, an SDD type (Silicon Disk Drive type), and a multimedia card micro type. , Card-type memory (such as SD or XD memory), Random Access Memory (RAM), Static Random Access Memory (SRAM), Read-Only Memory (ROM), EEPROM (Electrically Erasable Programmable Read- Only memory), a programmable read-only memory (PROM), a magnetic memory, a magnetic disk, and an optical disk may include at least one type of storage medium.

In addition, the controller 35 analyzes the reflected wave received by the first radar receiving antenna 33 to determine the presence or absence of a passenger in the detection area of the first radar receiving antenna 33, the distance to the passenger, and the position of the passenger. do. In this case, the controller 35 may detect the passenger's biometric information (heartbeat, respiration) by analyzing the reflected wave.

In addition, the controller 35 analyzes the reflected wave received by the second radar receiving antenna 34 to determine the presence or absence of a passenger in the detection area of the second radar receiving antenna 34, the distance to the passenger, and the position of the passenger. do. In this case, the controller 35 may detect the passenger's biometric information (heartbeat, respiration) by analyzing the reflected wave.

In addition, when a passenger is detected, the controller 35 may notify the location of the passenger to the cluster through the vehicle network.

The controller 35 may be implemented in the form of hardware or software, and may exist in a form in which hardware and software are combined. Preferably, the controller 35 may be implemented as a microprocessor, but is not limited thereto.

In particular, the vehicle passenger detection device according to the present invention is implemented on the PCB 31 , and the first radar receiving antenna 33 and the second radar receiving antenna 34 have different orientation angles from the radar transmitting antenna 32 . is implemented to have

As an example, one end of the PCB 31 on which the first radar receiving antenna 33 is mounted has an angle of θ ₁ with respect to the main body of the PCB 31. It may be implemented in a V-cut manner between the body and the end, This part can also be implemented as a flexible PCB. In addition, the second radar receiving antenna 34 may be implemented in a V-cut manner between the body and the end so that the other end of the PCB 31 mounted thereto has an angle of θ ₂ with respect to the body of the PCB 31, The part can also be implemented as a flexible PCB. In this case, θ ₁ and θ ₂ may be the same as or different from each other.

As such, by giving bends to one end and the other end of the PCB 31 body, the orientation angles between the first radar receiving antenna 33 and the second radar receiving antenna 34 are different from each other, so that the first radar receiving antenna 33 and the second radar receiving antenna 33 are bent. The separation distance between the two radar receiving antennas 34 can be minimized, thereby enabling miniaturization.

Hereinafter, the above-described bending angles θ ₁ , θ ₂ will be described in detail with reference to FIGS. 5 to 7 .

5 (a) shows the interior as viewed from the front of the vehicle, (b) shows the interior as viewed from the side of the vehicle, the vehicle to which the present invention is applied is, for example, a three-row vehicle, and the vehicle passenger detection device 51 ) is located at the center of the starting point of the second row seat on the ceiling of the vehicle as an example. In this case, the same method can be applied to a two-row vehicle.

Here, 'H' represents the shortest linear distance from the radar transmitting antenna 32 of the vehicle passenger detection device 51 to the third row seat headrest, and 'L ₁ ' is 'H' and the third row seat It represents the distance from the foot of the water line between the front part of the headrest to the center of the headrest of the left seat in the third row, and 'L ₂ ' is the head of the right seat in the third row from the foot of the water line between 'H' and the front part of the headrest in the third row It represents the distance to the center of the rest.

This is schematically as shown in FIG. 6 .

6 (a) shows a process of calculating the bending angle θ ₁ within the detection area 331 of the first radar receiving antenna 33, (b) is the detection of the second radar receiving antenna 34 A process of calculating the bending angle θ ₂ in the region 341 is shown. Substantially, each calculation method has the same form as in the following [Equation 1] and [Equation 2].

[Equation 1]

[Equation 2]

At this time, since 'H', 'L ₁ ', and 'L ₂ ' are determined according to the vehicle model, the bending angles θ ₁ , θ ₂ can be calculated.

Meanwhile, as shown in FIG. 7 , even when the device for detecting a vehicle occupant is mounted on one side of the ceiling of the vehicle, by adjusting the bending angles θ ₁ , θ ₂ , the passenger can be normally detected.

8 is a configuration diagram of an alarm system using the passenger detection device according to an embodiment of the present invention.

As shown in FIG. 8 , the warning system using the passenger detection device according to the present invention includes an input unit 81 , a driving unit 82 , an alarm unit 83 , and a control unit 84 . Depending on the method of carrying out the present invention, each component may be combined with each other and provided as one, and some components may be omitted depending on the method of carrying out the invention.

First, the input unit 81 receives a manipulation signal from the user. That is, when the user adjusts the position of the seat or adjusts the angle of the backrest of the seat, the user may input a control signal for adjusting the bending angles θ ₁ , θ ₂ in order to increase the detection accuracy of the passenger.

The driving unit 82 includes a motor and drives the motor so that one end and the other end are bent from the main body of the PCB 31 through the rotation of the motor. This driving method may be implemented similarly to a method of automatically adjusting the rotation angle of the side mirror.

The alarm unit 83 serves to inform the driver that there are passengers in the vehicle.

The control unit 84 performs overall control so that each of the components can perform their functions normally. The control unit 84 may be implemented in the form of hardware or software, and may exist in a form in which hardware and software are combined. Preferably, the control unit 84 may be implemented as a microprocessor, but is not limited thereto.

In addition, when a user's manipulation signal is input through the input unit 81 , the control unit 84 controls the driving unit 82 to perform a corresponding operation.

In addition, the control unit 84 controls the alarm unit 83 to notify the driver when a detection signal is transmitted from the detection device 51 . At this time, when a detection signal is transmitted from the detection device 51 and it is confirmed that the ignition of the vehicle is turned off and the door is locked through the vehicle network, the control unit 84 sends the alarm unit 83 to inform the driver that there are passengers in the vehicle. You can also control it.

9 is a flowchart of an embodiment of a method for warning a vehicle occupant detection according to the present invention.

First, the input unit 81 receives a manipulation signal from the user (901).

Then, the control unit 84 controls the driving unit to set the bending angle corresponding to the user's manipulation signal (902).

Then, the driving unit 82 is a bending angle between the main body of the PCB (Printed Circuit Board) on which the single radar transmitting antenna is mounted and one end of the PCB on which the first radar receiving antenna is mounted, the main body of the PCB and the second radar receiving Each of the bending angles between the other ends of the PCB on which the antenna is mounted is adjusted (903).

Thereafter, the alarm unit 83 notifies the driver as a passenger is detected in the vehicle ( 904 ).

10 is a block diagram illustrating a computing system for executing a method for warning a vehicle occupant detection according to an embodiment of the present invention.

Referring to FIG. 10 , the method for warning of detection of a vehicle occupant according to an embodiment of the present invention may be implemented through a computing system. The computing system 1000 includes at least one processor 1100 , a memory 1300 , a user interface input device 1400 , a user interface output device 1500 , a storage 1600 connected through a system bus 1200 , and A network interface 1700 may be included.

The processor 1100 may be a central processing unit (CPU) or a semiconductor device that processes instructions stored in the memory 1300 and/or the storage 1600 . The memory 1300 and the storage 1600 may include various types of volatile or nonvolatile storage media. For example, the memory 1300 may include read only memory (ROM) and random access memory (RAM).

Accordingly, the steps of a method or algorithm described in connection with the embodiments disclosed herein may be directly implemented in hardware, a software module executed by the processor 1100 , or a combination of the two. A software module resides in a storage medium (ie, memory 1300 and/or storage 1600 ) such as RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, a removable disk, a CD-ROM. You may. An exemplary storage medium is coupled to the processor 1100 , the processor 1100 capable of reading information from, and writing information to, the storage medium. Alternatively, the storage medium may be integrated with the processor 1100 . The processor and storage medium may reside within an application specific integrated circuit (ASIC). The ASIC may reside within the user terminal. Alternatively, the processor and storage medium may reside as separate components within the user terminal.

The above description is merely illustrative of the technical spirit of the present invention, and various modifications and variations will be possible without departing from the essential characteristics of the present invention by those skilled in the art to which the present invention pertains.

Accordingly, the embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention, but to explain, and the scope of the technical spirit of the present invention is not limited by these embodiments. The protection scope of the present invention should be construed by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

31: PCB
32: radar transmitting antenna
33: first radar receiving antenna
34: second radar receiving antenna
35: controller

Claims (13)

delete delete delete delete delete delete delete an input unit for receiving a manipulation signal from a user;
an alarm unit outputting an alarm sound;
The angle of inclination between the main body of the PCB (Printed Circuit Board) on which a single radar transmitting antenna is mounted and one end of the PCB on which the first radar receiving antenna is mounted, the main body of the PCB and the second radar receiving antenna are mounted on the PCB. a driving unit for respectively adjusting a bending angle between the other ends; and
A control unit that controls the driving unit to set a bending angle corresponding to a user's manipulation signal, and controls the alarm unit to notify the driver when a passenger is detected
A vehicle warning system comprising:
9. The method of claim 8,
The first radar receiving antenna,
An alarm system for a vehicle, characterized in that it detects passengers located in the second and third rows on the right side of the vehicle.
9. The method of claim 8,
The second radar receiving antenna,
An alarm system for a vehicle, characterized in that it detects passengers located in the second and third rows on the left side of the vehicle.
receiving, by an input unit, a manipulation signal from a user;
controlling the driving unit so that the control unit sets a bending angle corresponding to the user's manipulation signal;
The bending angle between the main body of the PCB (Printed Circuit Board) on which the driving unit is mounted with a single radar transmitting antenna and one end of the PCB on which the first radar receiving antenna is mounted, the main body of the PCB and the second radar receiving antenna are mounted adjusting each bending angle between the other ends of the PCB; and
A step in which the alarm notifies the driver as a passenger is detected in the vehicle
A vehicle warning method comprising a.
12. The method of claim 11,
The first radar receiving antenna,
An alarm method for a vehicle, characterized in that it detects passengers located in the second and third rows on the right side of the vehicle.
12. The method of claim 11,
The second radar receiving antenna,
An alarm method for a vehicle, comprising detecting passengers located in the second and third rows on the left side of the vehicle.

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