KR20200090279A - Vehicle door glass detection and warning system - Google Patents

Abstract

The present invention relates to a vehicle door glass detection and warning system which allows a user to immediately identify current state. More specifically, the vehicle door glass detection and warning system comprises: a sensor to detect an obstacle including a body in a prescribed space; a control unit to control a driving part inside a vehicle by dividing a case in which a body approaches a vehicle door glass and a case in which a body exists in the vehicle by receiving detection information from the sensor; the driving part to operate a window regulator of the vehicle in accordance with an opening/closing control signal of the control unit to drive a window to open and close the window to stop the position of the glass or uniformly adjust the position of the glass to prevent an injury to the body or ventilate indoor air of the vehicle; and a detection and warning display part to receive control of the control unit in accordance with detection of the obstacle to generate warning information in accordance with the position of the glass and body detection information.

Description

Vehicle door glass detection and warning system

The present invention relates to a vehicle door glass detection and warning system, and more particularly, to children in a vehicle door glass when a dangerous contact with a body part such as a hand, or when a temperature exceeding a certain temperature persists, etc. A sensor for detecting an obstacle including a body in a certain space to protect; A control unit configured to divide the case where the body approaches the door glass of the vehicle and the case where the body exists inside the vehicle by receiving the detection information from the sensor and control the vehicle interior driving unit; A driving unit that operates the window regulator of the vehicle to open and close the window according to the opening/closing control signal of the control unit to stop or constantly adjust the position of the glass to prevent the injury to the body or to ventilate the vehicle's indoor air; It relates to a vehicle door glass detection and warning system comprising; a detection and warning display unit for generating body detection information and alarm information according to the position of the glass under the control of the control unit according to the detection of the obstacle.

Most recently released vehicles are equipped with windows that are automatically opened and closed by button operation, and as a result, there is an increasing demand for an obstacle detection device to prevent a safety accident where a part of the body is caught in the window.

In addition, there are an increasing number of vehicles with automatic opening/closing systems applied to doors as well as windows. In particular, if the body is caught in the door that is automatically closed, serious injury may occur, and thus it is necessary to install an obstacle detection device.

In general, the obstacle detection device is largely classified into a contact type and a non-contact type, but it is preferable to install a non-contact type detection device in a vehicle that can detect a body or an obstacle before contacting a window or a door.

On the other hand, in general, the air conditioning system of a vehicle is a device that cools or heats the interior of a vehicle, and operates in a cooling mode in summer and is used as an air conditioner in winter, and is used as a heater in winter.

On the other hand, if the driver (or occupant) operates the air conditioner in summer or the heater is operated in winter and falls asleep while the vehicle being parked is closed, outside air is supplied through the air conditioning system of the vehicle being parked. Since it hardly enters the interior of the vehicle, there is a problem in that the amount of oxygen in the vehicle is insufficient and the driver (or occupant) leads to suffocation.

1 is a view showing the structure of a door glass sensing device according to the prior art, FIG. 2 is a view showing the structure of a door glass sensing device according to another example of the prior art, and FIG. 3 is a method for measuring carbon dioxide according to the prior art It is a view showing a window opening method.

As shown in Figure 1, the detection plate 10 fixed to the upper side of the rubber packing 4 installed on the edge of the window 2 of the door 1; A sensing sensor 20 operated by contact of the sensing plate 10 and attached to an upper inner surface of the rubber packing 4; ECU for recognizing the signal of the detection sensor 20; It provides an object detecting device when the door glass of a vehicle rises, characterized in that it consists of an operating motor (30) connected to the glass (3) lower switch so that the glass is lowered by receiving the signal from the ECU.

However, since a sensing plate 10 fixed in addition to the sensing sensor 20 is required, object detection cannot be performed when an accurate door glass is raised, and judgment may be wrong in a child having a small body organ.

As shown in FIG. 2, Korean Patent No. 1774666 includes a first Hall sensor positioned at a starting point of rotation of the window motor to generate a first pulse signal according to the rotation of the window motor; A second Hall sensor generating a second pulse signal according to the rotation of the window motor; And generating a first virtual pulse signal and a second virtual pulse signal based on the first pulse signal and the second pulse signal when the window rises, and the first and second pulse signals and the first and second virtual pulse signals. 2 After calculating the acceleration of the window motor using the virtual pulse signal, the force acting on the window is calculated based on this, and when the calculated force exceeds a threshold value, it is determined that an object is caught between the window and the door frame. It includes a control unit.

However, since it is an invention for determining a fine pulse signal by relying heavily on a window motor, the accuracy may be high, but in various situations, an uncontrollable situation may occur due to a failure of the window motor. Operation is important.

As shown in FIG. 3, Korean Patent Registration No. 0868920 includes a carbon dioxide sensor for measuring the concentration of carbon dioxide (CO2) in a vehicle interior; A control unit that outputs an opening/closing control signal when the concentration of carbon dioxide (CO2) measured from the carbon dioxide sensor exceeds a reference value; A driving unit driven to open and close a window by operating a window regulator of a vehicle according to an opening/closing control signal of the control unit; A power supply unit consisting of a vehicle battery and an auxiliary battery for supplying driving power; Display means for digitizing and displaying the carbon dioxide (CO2); It provides a vehicle choking prevention system using a carbon dioxide sensor, characterized in that consisting of; upper limit detection means for detecting when the window is closed on one side of the vehicle door, and a lower limit detection means for detecting the opening limit of the window.

However, there is a problem in that children who frequently occur by using only the carbon dioxide sensor cannot prevent accidents, such as being caught in the door glass of a vehicle.

Korean Registered Patent No. 1774666 Public utility model No. 1998-059931 Korean Registered Patent No. 1373292 Korean Registered Patent No. 0868920

The present invention has been made to solve the above problems, and it is an economical vehicle door glass detection that can simultaneously solve the door glass body detection and the prevention of over-temperature damage inside the vehicle using a sensor that detects an obstacle including a body in a certain space. The purpose is to provide a warning system.

In addition, an object of the present invention is to provide a vehicle door glass detection and warning system that can increase detection efficiency by using various sensors, and enables detection and warning display, so that a user can immediately grasp the current state.

In order to solve the above problems, the present invention is a sensor for detecting an obstacle including a body in a certain space; A control unit configured to divide the case where the body approaches the door glass of the vehicle and the case where the body exists inside the vehicle by receiving the detection information from the sensor and control the vehicle interior driving unit; A driving unit that operates the window regulator of the vehicle to open and close the window according to the opening/closing control signal of the control unit to stop or constantly adjust the position of the glass to prevent the injury to the body or to ventilate the vehicle's indoor air; It includes; a detection and warning display unit for generating body detection information and alarm information according to the position of the glass under the control of the control unit according to the detection of the obstacle.

The present invention is a sensor for detecting an obstacle including a body in a certain space or sensing the temperature inside the vehicle; When the body accesses the vehicle door glass by receiving the detection information from the sensor, the door glass is stopped or the vehicle door glass is opened or closed when the body is inside the vehicle at a temperature above or below a certain temperature. A control unit that controls the driving unit; A driving unit that operates the window regulator of the vehicle according to the opening/closing control signal of the control unit to fix or constantly adjust the position of the door glass to prevent injury to the body or to ventilate the indoor air of the vehicle; It includes; a detection and warning display unit that receives the control of the control unit according to the detection of the obstacle or the temperature to generate body detection information and alarm information according to the position of the glass.

The sensor detects that an obstacle including a body is in contact with the door glass of the vehicle.

The sensor is installed in a vertical or horizontal direction among lines extending from one end to the other end of the glass frame on which the door glass is installed.

The sensor may further include an oxygen amount measurement sensor that measures an indoor oxygen amount of the vehicle and outputs an oxygen amount signal corresponding to the measured oxygen amount. However, when the oxygen amount indicated by the oxygen amount signal of the oxygen amount measurement sensor is measured below a predetermined reference value The driver (or sunroof drive) of the door glass is operated to automatically open and close the window or sunroof of the vehicle for a specific time.

It further includes an obstacle determination unit for determining an upward obstacle due to noise including vibration and shock and an upward obstacle due to an actual obstacle while the vehicle door glass rises.

Infrared sensor for detecting the infrared radiation generated from the body; further comprising a driving unit 130 connected to the meteorological office server when the current window opening is small compared to the preset maximum opening amount according to the heat or cold weather information determined by the control unit ) To send the control signal to operate the door glass.

The detection and warning display unit is a display device and a voice generating device for detection and warning.

The detection and warning display unit is a display device and a voice generating device for detection and warning, and the detection and warning information is transmitted to an external smart phone through an additional communication module.

The present invention made as described above It is possible to prevent accidents that frequently occur to children from being caught in the door glass of a vehicle.

In addition, the present invention increases the reliability of the device by using a sensor having a simple structure and reducing electrically complicated connections therebetween.

In addition, the present invention can simplify the installation in the door of a plurality of smart sensors and reduce wiring to reduce the weight and volume of the system.

The present invention has a high accuracy using a smart sensor, so it is possible to perform better detection and warning notification processing.

1 is a view showing the structure of a door glass sensing device according to the prior art.
2 is a view showing the structure of a door glass sensing device according to another example of the prior art.
Figure 3 is a view showing a window opening method by the carbon dioxide measuring method according to the prior invention.
4 is a view showing the overall configuration of a vehicle door glass detection and warning system according to an embodiment of the present invention.
5 is a view showing that a laser sensor is vertically disposed according to another embodiment of the present invention.
6 is a view showing that the laser sensor is horizontally disposed according to another embodiment of the present invention.
7 is a view showing that a light emitting sensor and a light receiving sensor are disposed according to another embodiment of the present invention.
8 is a view showing in detail the configuration of FIG. 7 according to another embodiment of the present invention.

In order to fully understand the present invention, preferred embodiments of the present invention will be described with reference to the accompanying drawings. The embodiments of the present invention can be modified in various forms, and the scope of the present invention should not be construed as being limited to the embodiments described in detail below. This embodiment is provided to more fully describe the present invention to those skilled in the art. Therefore, the shape of the elements in the drawings may be exaggerated to emphasize a clearer description. It should be noted that in each drawing, the same members may be indicated by the same reference numerals. In addition, detailed descriptions of well-known functions and configurations that are judged to unnecessarily obscure the subject matter of the present invention are omitted.

4 is a view showing the overall configuration of a vehicle door glass detection and warning system according to an embodiment of the present invention.

As shown in Figure 4, the present invention is composed of a sensor 110, a control unit 120, a driving unit 130, a detection and warning display unit 140.

The sensor is a device that detects an obstacle including a body in a certain space, and specifically, detects an obstacle including the body in contact with a vehicle door glass or detects the presence of a body in a certain space.

That is, the sensor may be installed in a vertical or horizontal direction among lines extending from one end to the other end of the glass frame on which the door glass is installed in order to sense that an obstacle including the body contacts the vehicle door glass.

In addition, the sensor may be installed inside the vehicle to detect the presence of a body in a certain space.

However, in the case of the multi-functional smart sensor described below, an obstacle including a body may contact the door glass of the vehicle or simultaneously detect the presence of a body in a certain space even if it is installed on the upper part or the inside of the door glass.

The glass frame is a frame that connects fillers (A-pillar, B-pillar, and C-pillar; see FIG. 7) therebetween. The sensor is mainly installed in the upper portion or the sensor is installed in the side portion to prevent obstacles including the body. It becomes detectable.

As shown in FIG. 7, the sensor is provided with one or more light-receiving or light-emitting sensors 211 and 212 in an upper portion of the glass frame, and a light-receiving or light-emitting sensor is again installed on the opposite side to cover the door glass. It can detect parts of the body that are passing or passing.

Even if a small number of sensors that are difficult to detect in all parts of the body are installed, it is possible to cover them by adjusting the injection angle of the luminous light.

In addition, the present invention may further include an obstacle determination sensor for determining an upward obstacle due to noise including vibration and shock and an upward obstacle due to an actual obstacle while the vehicle door glass rises as the sensor.

However, a normal driving state is a state in which a vehicle is stationary or runs on a normal pavement, and is a driving state in which strong vibration or shock is not applied to the door glass. An abnormal driving state is a road in which the vehicle is in harsh conditions (for example, unpaved road or irregularities). In the case of a driving state in which strong vibrations or impacts are applied to the window glass due to driving or collision on the road), the control unit may be operated only when signals are generated simultaneously with the above-described sensors because the obstacle determination sensor may incorrectly determine. It can generate a warning alarm.

Meanwhile, the sensor may further include an oxygen amount measurement sensor that measures an indoor oxygen amount of the vehicle and outputs an oxygen amount signal corresponding to the measured oxygen amount.

If the above-described sensors are limited to the door glass and the sensing is performed, the oxygen amount measuring sensor can determine whether there is a person inside the vehicle.

Therefore, it is possible to prevent an unpredictable accident from occurring by accidentally leaving a young child or animal in the interior during a heat wave or cold weather.

That is, in the case of a heat wave, when the amount of oxygen indicated by the oxygen amount signal of the oxygen amount measurement sensor is measured below a predetermined reference value, the driving unit (or sunroof driving unit) of the door glass is operated to automatically open the vehicle window or sunroof for a specific time. Can then be closed.

Alternatively, in the case of cold weather, the control unit may send a warning alarm to a wireless terminal of a vehicle driver, or use a vehicle anti-theft alarm instead to inform the surrounding danger.

The heat and cold weather may be determined by the control unit 120 by receiving current date and weather information through a time setting device in a vehicle or a wireless module or a navigation device.

In addition, a smart sensor may be installed so that the control unit 120 can easily send a warning alarm to the wireless terminal of the vehicle driver.

The smart sensor used in the present invention is a sensor additionally equipped with communication, data processing, and decision-making functions in addition to the sensing function.

The smart sensor according to the present invention is an intelligent sensor equipped with a sensor function on one chip, as well as communication, data processing, and artificial intelligence modules.

That is, the control unit 120 can determine the current date and weather information through a communication module.

In addition, through the data processing module, the window opening amount can be stored and calculated in advance to help the control unit 120 to determine.

The smart sensor is a communication technology that conforms to the international standard IEC 61131-9 through IO-Link, and is a point-to-point method for a sensor or a driving unit (actuator) located at a lower level in the triangle of automation. Data is sent from these devices to a higher level.

Therefore, depending on the type of sensor, it is possible to communicate through the same bus, so if the connection between each device is reduced through the IO-Link method, the reliability of the device increases.

It also has the advantage of simplifying the installation of smart sensors and reducing wiring to reduce system weight and volume.

The present invention integrates a plurality of sensors described above using a smart sensor, and has high accuracy, so that more excellent detection and warning notification processing is possible. That is, even when installed on the side of the door glass of the vehicle, it is possible to detect the presence or absence of people inside the vehicle (infrared sensor).

The control unit 120 is a device that controls the vehicle interior driving unit 130 by dividing the case where the body approaches the door glass of the vehicle and the case where the body exists inside the vehicle by receiving the detection information from the sensor. It can be controlled to sound an alarm when the glass approaches while moving, or it can be controlled to lower the door glass to a certain position when the body is inside the vehicle due to a heat wave.

The driving unit 130 operates the window regulator of the vehicle according to the opening/closing control signal of the control unit to drive the window to be opened and closed to stop or constantly adjust the position of the glass to prevent the injury to the body or to prevent the vehicle's indoor air. As a ventilation device,

The detection and warning display unit is a device that generates body detection information and alarm information according to the position of the glass under the control of the control unit 120 according to the detection of the obstacle, and is displayed in conjunction with a certain location or navigation of the center fascia can do.

The distance sensor is installed on the window pane of each door of the vehicle. More specifically, as shown in FIG. 3, the glass is installed in the upper center of the glass frame of the door, and when the glass is moved up and down, the distance between the glass and the top is measured to detect the opening amount of the current glass.

In this case, as a distance measuring sensor, a sensor capable of measuring a distance, such as an optical sensor, an ultrasonic sensor, and a laser sensor, may be used.

5 is a view showing that the laser sensor is vertically arranged according to another embodiment of the present invention, and FIG. 6 is a view showing that the laser sensor is horizontally arranged according to another embodiment of the present invention.

As shown in FIGS. 5 and 6, the laser sensor 210 that can be used as an example measures a distance from the surface by cutting a laser on a glass frame surface, and can detect the shape of an obstacle by changing the measurement amount. have.

The laser sensor 210 according to the present invention is composed of a sensor head and a controller, calculates information detected by the sensor with a controller, outputs the result, and transmits the result to the control unit 120.

The minimum resolution of the laser sensor 210 according to the present invention is 0.01 μm, and the sampling cycle is 10 μs (microseconds), which is desirable to scan the surface of the workpiece 100,000 times per second and detect irregularities at the level of 1 mm of 100,000th. Do.

In addition, by replacing the sensor head of the laser sensor 210, the range of selection can be widened according to a measurement distance or a range.

The control unit 120 may be an existing electronic control unit (ECU) or a general control unit (CU) separately installed for control according to the present invention.

The control unit 120 pre-stores the maximum amount of opening of the door glass transmitted from an external terminal or input device and controls it accordingly.

This maximum opening amount means the limit that each door glass selected by the driver can be opened to the maximum. When the 2nd button is pressed, the occupant arbitrarily controls the window glass of each door to go down to the height up to 2nd level. Does not.

However, if the height of the second stage may be injured by a human head or a body part (eg, thigh) having a diameter larger than this, the control unit 120 recognizes the detection situation as a dangerous situation and detects and warns A warning signal may be sent to the display unit 140 and an operation stop may be instructed to the driving unit 130.

In addition, when the operation signal of the door glass opening/closing button installed in each door is input after the maximum opening amount of the door glass is stored, the control unit 120 receives the signal from the distance measuring sensor of the door and calculates the current window opening amount. The current window opening amount is compared with the stored maximum opening amount, and a necessary control signal is output according to the result. For example, when the occupant wants to lower the windowpane by operating the windowpane opening/closing button, when the current windowpane opening amount is smaller than the maximum opening amount, the required control signal for moving the windowpane down is output to the driver 130. At this time, the control unit 120 also recognizes the sensing situation of the body across the door glass as a dangerous situation, and sends a warning signal to the sensing and warning display unit 140 and commands the driving unit 130 to stop operation. .

In case of heat wave, the control unit 120 is an infrared sensor that detects infrared rays generated from the human body, and when the body is detected inside the vehicle, the maximum amount of opening of the door glass and the preset maximum amount according to the current situation (heat or cold weather). In comparison with the present, when the window opening amount is small, a control signal is transmitted to the driving unit 130 to operate the door glass. Here, the presence or absence of a heat wave or cold weather is connected to the weather station server and the control unit can determine.

In the case of the infrared sensor, there are many differences in measurement results depending on whether the color of the target object is black or white.

Therefore, it is possible to store in advance which color tone the vehicle interior belongs to, and to help the accurate measurement by a color transformation method using an existing deep learning technique.

The detection and warning display unit 140 is a display device and a voice generating device for detection and warning, and may be installed as a display screen on a dashboard or a center fascia of a vehicle.

Alternatively, the control unit 120 may attach a small warning LED to the inner side of the door (eg, door trim) or broadcast a warning through a speaker.

In particular, it is possible to prevent an accident in advance by activating sensor detection of the control unit 120 before automatically operating a door glass when passing through a tunnel or the like in conjunction with a navigation installed in a center fascia.

7 is a view showing that a light emitting sensor and a light receiving sensor are arranged according to another embodiment of the present invention, and FIG. 8 is a view showing the configuration of FIG. 7 in detail according to another embodiment of the present invention.

As shown in FIGS. 7 and 8, when the body of the vehicle is difficult to replace the door packing or the interior material, the sensor strip assembly 215 including the sensor 210 may be installed separately from the door packing or the interior material. .

The sensor strip 215 is inserted into the insertion hole of the body, and thus the length of the insertion hole should be at least longer than the sensor strip 215.

The sensor strip assembly 215 includes a sensor body made of an insulating material, a pair of strip electrodes embedded in the sensor body, and a PCB substrate equipped with a sensing circuit is integrally molded at the end of the sensor body. .

The body of the sensor strip assembly 215 may be manufactured by injection molding or extrusion molding. In particular, in the case of manufacturing by injection molding, the body and the sensor body of the sensor strip may be integrally formed through insert molding, or the body and the sensor body of the sensor strip may be built into the body to be integrally manufactured.

Therefore, the sensor strip assembly 215 may be used for sensing an obstacle when automatically opening or closing a rear door or a sliding door of a vehicle. In this case, the sensor strip assembly 215 according to the present invention may be mounted on the boundary between the door and the body frame. In addition, the body of the sensor strip assembly may be mounted to perform the role of door packaging or vehicle packaging or interior materials. In this case, the window packing groove as described above may be omitted.

110: sensor
120: control unit
130: driving unit
140: detection and warning display
210: laser sensor
211, 212: light receiving or emitting sensor
215: sensor strip

Claims (7)

A sensor that detects an obstacle including a body in a certain space or senses the temperature inside the vehicle;
When the body accesses the vehicle door glass by receiving the detection information from the sensor, the door glass is stopped or the vehicle door glass is opened or closed when the body is inside the vehicle at a temperature above or below a certain temperature. A control unit that controls the driving unit;
A driving unit for operating the window regulator of the vehicle according to the opening/closing control signal of the control unit to fix or constantly adjust the position of the door glass to prevent injury to the body or to ventilate indoor air of the vehicle;
A vehicle door glass detection and warning system including; a detection and warning display unit that receives control of the control unit according to the detection of the obstacle or the temperature to generate body detection information and alarm information according to the location of the glass. According to claim 1,
The sensor is a vehicle door glass detection and warning system, characterized in that for detecting an obstacle including a body contacting the vehicle door glass. According to claim 1,
The sensor is a vehicle door glass detection and warning system, characterized in that installed in the vertical or horizontal direction from the line extending from one end to the other end of the glass frame on which the door glass is installed. According to claim 1,
The sensor further includes an oxygen amount measurement sensor that measures the amount of oxygen in the vehicle and outputs an oxygen amount signal corresponding to the measured amount of oxygen.
When the amount of oxygen indicated by the oxygen amount signal of the oxygen amount measurement sensor is measured below a predetermined predetermined reference value, the vehicle door glass is characterized in that the window or sunroof of the vehicle is automatically opened and closed for a specific time by operating the driving unit of the door glass. Detection and warning system. According to claim 1,
A vehicle door glass detection and warning system further comprising; an obstacle determination unit for determining an upward obstacle caused by noise including vibration and shock and an upward obstacle caused by an actual obstacle while the vehicle door glass rises. According to claim 1,
Infrared sensor for detecting the infrared rays generated from the body, further comprising a control unit connected to the meteorological office server when the current window opening is small compared to the preset maximum opening amount according to the heat or cold weather information determined by the control unit. Vehicle door glass detection and warning system, characterized in that by transmitting a signal to operate the door glass. According to claim 1,
The detection and warning display unit is a display device and a voice generating device for detection and warning, and the vehicle door glass detection and warning system, characterized in that the detection and warning information is transmitted to an external smart phone through an additional communication module.

Images