KR20140093358A - Automotive Emergency Warning Device - Google Patents

Abstract

Disclosed is an emergency vehicle warning device comprising: a sensor unit which senses at least any one among a location, speed, and acceleration of a vehicle; a control unit which calculates the acceleration of the vehicle using data received from the sensor unit, compares the calculated acceleration with a reference acceleration, and generates an LED lamp blinking command if the vehicle is slowing down and the acceleration of the vehicle is greater than the reference acceleration; a display unit which consists of an LED lamp blinking according to the LED lamp blinking command of the control unit; and a battery unit which supplies power to the sensor unit, the control unit, and the display unit. The emergency vehicle warning device of the present invention is installed in the vehicle independently from other devices for operating the vehicle. The battery unit of the emergency vehicle warning device is provided independently from a battery of the vehicle and operates independently and the display unit of the emergency vehicle warning device is provided independently from emergency lights of the vehicle and operates independently. The emergency vehicle warning device of the present invention automatically notifies an occurrence of an emergency situation to following vehicles when a driver has to suddenly slow down the vehicle because of an emergency situation which has occurred ahead of the vehicle or the vehicle has a rear-end collision with a vehicle in front, thereby taking safety measures even if the driver lacks experience as a driver. Thus, the emergency vehicle warning device of the present may improve safety of the vehicle as well as the convenience of use.

Description

[0001] Automotive Emergency Warning Device [

The present invention relates to a vehicle emergency alert system, and more particularly, to a vehicle emergency alert system, and more particularly, to an emergency alert system for a vehicle, To a vehicle emergency alert system.

On the road where the vehicle is running at high speed like a highway, the driver turns on the emergency light provided in the vehicle in case of an emergency in front of the driver, for example, in case of a sudden decline due to entry of the congestion section, Since the vehicle in the rear has an emergency ahead, it sends a signal to operate the vehicle carefully. However, in the case where a vehicle collision can not be turned on due to insufficient driving, or a collision accident occurs in the state where the emergency light is not turned on, the possibility of a rear-end collision or a secondary collision accident is greatly increased. Many suggestions have been made to reduce these accidents.

Japanese Patent Application Laid-Open No. 10-2005-0068949 discloses a system and method for preventing collision using telematics and Bluetooth. The present invention relates to a vehicle collision avoidance system, a collision avoidance system, and a collision avoidance system. In the collision avoidance system, The vehicle traveling in the same direction as that of the vehicle causing the collision among other vehicles suddenly bounces when it receives such a notice within the effective distance of the Bluetooth communication and carries the vehicle running in the opposite direction to the vehicle that caused the collision among the other vehicles When it receives such a notification within the effective range of the Bluetooth communication, it turns on the emergency warning light and proceeds slowly.

Japanese Patent Application Laid-Open No. 10-2008-0014372 (published on Feb. 14, 2008) discloses a communication system and method for a safety tripod and a vehicle BCM. This invention adds a function of mutual communication with rear vehicles to a safety tripod displayed on the road in order to draw attention to the rear vehicles in the event of a malfunction or an accident of the vehicle. The rear-end vehicles that receive signals from the safety tripod blink the vehicle's emergency lights and draw attention to the vehicles behind them.

In addition, proposals have been made to prevent the occurrence of a secondary collision accident by allowing the police to notify the police of the occurrence of an emergency in the event of a vehicle accident, Japanese Patent Application Laid-Open No. 2000-0019921 (published Apr. 15, 2000), Japanese Patent Application Laid-Open No. 10-2007-0031640 (published on Mar. 20, 2007), Japanese Patent Application Laid-open No. 10-2007-0060570 (Jun. Patent Registration No. 10-0835385 (Registered on May 29, 2008), Patent Publication No. 10-2010-0005361 (Published on Jan. 15, 2010), Patent Publication No. 10-2011-0113379 (2011 (Published on Dec. 17, 2012), Patent Publication No. 10-2012-0060511 (published on June 12, 2012), Patent Publication No. 10-2012-0095540 (published on Aug. 29, 2012) 1998-050273 (published on October 10, 1998).

In the above prior arts, the collision avoidance system is installed so as to be interlocked with the devices that operate the vehicle, for example, the ECU, the accelerator, and the brake device. If such a collision avoidance system malfunctions, it may prevent the collision, thereby contradicting the object of improving the safety of the vehicle, that is, causing a serious deterioration of the safety of the vehicle. Therefore, in order to secure the safety of the vehicle, such a collision avoidance system has a disadvantage that it must pay a higher cost than the additional performance, since the vehicle must be tested after the vehicle is tested with sufficient safety. In addition, if the collision avoidance system receives power from the battery of the vehicle at the time of a collision or a collision of the vehicle, the collision avoidance system can operate normally. However, if the power supply is interrupted due to an accidental impact, the collision avoidance system can not operate normally. The system may become obsolete.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the problems of the prior art. SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a vehicle emergency control system having a separate battery unit that is mounted on a vehicle to operate independently of the devices that operate the vehicle, that is, the ECU, the accelerator, and the brake unit, The present invention provides a vehicle emergency alert system that operates normally even when an accident occurs in a vehicle without fear of harming the safety of the vehicle by configuring an alarm device.

It is also an object of the present invention to provide a vehicle emergency alert system capable of automatically notifying a vehicle in the rear of an emergency situation when a driver of the vehicle must suddenly decline due to an emergency situation ahead of the driver or when a rear- .

According to a first aspect of the present invention, there is provided a vehicle emergency alert system comprising: a sensor unit for detecting one of a position, a speed and an acceleration of a vehicle; A controller for comparing the calculated acceleration of the vehicle with a reference acceleration and generating an LED lamp flashing command when the vehicle is decelerated and the acceleration magnitude of the vehicle is greater than the reference acceleration magnitude; And a battery unit for supplying power to the sensor unit, the control unit, and the display unit.

The vehicle emergency alert device of the first embodiment is mounted on the vehicle independently of the devices that operate the vehicle and the battery section of the vehicle emergency alert device is separately provided for the battery of the vehicle and operates independently , And the display portion of the vehicle emergency alert device is separately provided for the emergency light of the vehicle and operates independently.

According to a second aspect of the present invention, there is provided a vehicle emergency alert system comprising: a sensor unit for detecting any one of a position, a velocity and an acceleration of a vehicle; an acceleration sensor for calculating an acceleration of the vehicle based on data received from the sensor unit, A controller for comparing the acceleration of the vehicle with the reference acceleration and generating an LED lamp flashing command when the vehicle is decelerated and the acceleration magnitude of the vehicle is greater than the reference acceleration magnitude; And a battery unit for supplying power to the sensor unit, the control unit, and the wireless communication unit, and a controller for controlling the LED lamps generated by the main body control unit by wireless communication with the main body wireless communication unit A wireless communication unit for receiving an instruction from the wireless communication unit, And a display unit including an LED lamp which receives the LED lamp flashing command and is flickered according to the command, and a battery unit that supplies power to the wireless communication unit and the display unit.

The vehicle emergency alert device of the second embodiment is mounted on the vehicle independently of the devices that operate the vehicle, and the battery sections of the main body and the display device are separately provided to the battery of the vehicle and operate independently And the display unit of the display device is separately provided for the emergency light of the vehicle and operates independently.

In the vehicle emergency alarm system of the second embodiment, it is preferable that the wireless communication units of the main body and the display device are wireless communication units based on Bluetooth communication.

In the vehicle emergency alarm system of the first and second embodiments, the sensor unit preferably comprises a GPS receiver.

Also, the controller generates a command to turn off the LED lamp of the display unit when the speed of the vehicle is maintained to be the same or increases for a predetermined time while the LED lamp of the display unit is blinking .

Preferably, the display unit is attached to a rear window of the vehicle.

In addition, the vehicle emergency alarm apparatus further includes a vibration sensor, and the sensor unit that detects any one of the position, velocity, and acceleration of the vehicle is preferably operated when vibration is detected by the vibration sensor.

In addition, in the vehicle emergency alert system, the battery units may be a secondary battery, and may further include a charging terminal for charging the battery units. The display device of the vehicle emergency alert device or the vehicle emergency alert device preferably further comprises a solar cell, and the battery for supplying power to the display portion is preferably charged by the solar cell through the charge terminal.

Since the vehicle emergency alarm device of the present invention operates independently of the devices that operate the vehicle, that is, the ECU, the accelerator, and the brake device, even if a malfunction occurs, it does not have a fatal effect on the vehicle. Therefore, It is possible for the owner of the finished car to additionally install it in the vehicle. Therefore, the ratio of price to performance is high for the additional function of the vehicle as the emergency alert function.

Further, since the vehicle emergency alert system of the present invention includes a separate battery unit that operates independently of the battery of the vehicle, even if the power supply system by the battery of the vehicle is damaged due to an accident, The emergency alert function can surely be achieved.

In addition, since the vehicle emergency alert system of the present invention automatically informs a vehicle in the rear of the vehicle of an emergency occurrence when a driver of the vehicle must suddenly decline due to an emergency situation in front of the driver or when a collision accident with the preceding vehicle occurs, Even if the driver is immature, it is possible to take safety measures for the vehicle, which is not only convenient but also improves the safety of the vehicle.

1 is a diagram showing a schematic configuration of a vehicle emergency alert system according to an embodiment of the present invention.
2 is a diagram showing a schematic configuration of a vehicle emergency alert system according to another embodiment of the present invention.
3 is a part of a flowchart showing an operational example of the vehicle emergency alert system of the present invention.
Fig. 4 is a part of a flowchart showing an operational example of the vehicle emergency alert system of the present invention, which follows the flow chart of Fig.

Hereinafter, the present invention will be described in detail with reference to the drawings.

1 is a diagram showing a schematic configuration of a vehicle emergency alert system according to an embodiment of the present invention. 1, a vehicle emergency alert system 10 according to the present invention includes a sensor unit 100, a control unit 200, a display unit 300, a battery unit 400, a charging terminal 500, (600) and may also include an input (700).

The sensor unit 100 detects any one of the position, velocity, and acceleration of the vehicle. The sensor unit 100 is most preferably composed of a GPS receiver, and may be constituted by a speed sensor or an acceleration sensor. The sensor unit 100 may further include a vibration sensor that operates separately from the GPS receiver. In this case, it is preferable that the GPS receiver operates only when vibration is detected by the vibration sensor, as described below.

The control unit 200 receives the position, velocity, or acceleration data from the sensor unit 100 and calculates the acceleration of the vehicle. When the vehicle is decelerating and the acceleration magnitude of the vehicle is larger than the reference acceleration magnitude, the control unit 200 generates an LED lamp flashing command and sends it to the display unit 300.

The display unit 300 is composed of LED lamps blinking in response to the LED lamp flashing command of the control unit 300. The LED lamp used in the display portion is preferably a high-latitude LED.

The battery unit 400 supplies power to the sensor unit 100, the control unit 200, and the display unit 300. The battery unit 400 is provided separately from the battery of the vehicle and operates independently of the battery of the vehicle. The battery unit 400 may be configured as a primary battery, such as a dry battery, but is preferably configured as a secondary battery.

When the battery unit 400 is configured as a secondary battery, a charging terminal 500 is formed. The battery unit 400 may be charged by the battery of the vehicle, but is preferably charged by the solar cell 600. The vehicle emergency alert system 10 of the present invention is mainly used by being attached to a rear window of a vehicle. Since the battery 400 is charged by the solar cell 600, The solar cell 600 generates electricity in the daytime without the operation of the driver and charges the battery unit 400 so that it can always operate.

Meanwhile, the vehicle emergency alert system 10 of the present invention may further include an input unit 700. The input unit 700 may include a power switch for turning on / off the power. The input unit 700 is not necessarily required. That is, as mentioned above, the power source may be kept in the always-on state. Thus, as long as the battery unit 400 is charged by the solar cell 600, the battery unit 400 always supplies power, so that the vehicle emergency alert apparatus 10 of the present invention always operates, . The driver is not required to perform any operation such as turning on / off the vehicle emergency alert device 10 of the present invention.

The input unit 700 may include an initialization switch for releasing the LED lamp blinking state of the display unit 300, that is, for turning off the LED lamp. As described below, the LED lamp of the display unit 300 is flashed when a collision occurs, and it is necessary to release the blinking of the LED lamp after the situation is completely completed. In addition, the LED lamp may blink or turn on due to a malfunction. An initialization switch may be used in this case. However, the function of the initialization switch may be performed by the power switch. That is, when the power switch is turned off, the power supply is interrupted and the LED lamp of the display unit 300 is turned off. When the power switch is turned on again, the power supply is restarted again, so that the vehicle emergency alert system of the present invention is initialized and maintained in the initial state. Therefore, when the input unit 700 is placed, it is possible to install only the power switch or only the initialization switch in the simplest form.

In addition, it is not excluded to place an input button or a switch for another function as the input unit 700, but it is useful in terms of simplification of structure and reduction in cost to put only a power switch or an initialization switch.

The vehicle emergency alert system 10 of the present invention having such a configuration is mounted in the vehicle independently of the devices that operate the vehicle, that is, the ECU, the accelerator, and the brake device. Also, the battery unit 400 is separately provided for the battery of the vehicle and operates independently, and the display unit 300 is separately provided for the emergency light of the vehicle and operates independently.

2 is a diagram showing a schematic configuration of a vehicle emergency alert system according to another embodiment of the present invention. As shown in FIG. 2, the vehicle emergency alert system 10 'of the present invention may be configured of a main body 12 and a display device 14.

The main body 12 includes a sensor unit 110, a control unit 210, a battery unit 410, a charging terminal 510, a solar cell 610 and an input unit 710, And a wireless communication unit 810. Here, components other than the wireless communication unit 810 perform substantially the same functions as those described above. The main body 12 may be configured as a smart phone, in which case the solar cell 610 is not included in the configuration of the main body 12. It is preferable that the wireless communication unit 810 is based on Bluetooth communication.

The display device 14 includes a display portion 320, a battery portion 420, a charging terminal 520 and a solar cell 620 and also includes a wireless communication portion 820 for communication with the main body 12. Components other than the wireless communication unit 820 perform substantially the same functions as those described above. It is preferable that the wireless communication unit 820 is based on Bluetooth communication.

As described above, the vehicle emergency alert device 10 'of the second embodiment, which is composed of the body 12 and the display device 14, has substantially the same configuration as the vehicle emergency alert device 10 of the first embodiment , The difference is that in the vehicle emergency alert apparatus 10 of the first embodiment, the connection between the portion corresponding to the main body and the portion corresponding to the display device is made by the wire, while the vehicle emergency alert device (second embodiment) 10 ', the connection between the main body 12 and the display device 14 is performed by wireless communication.

3 and 4 are flowcharts showing an operation example of the vehicle emergency alert system of the present invention. Now, with reference to Figs. 3 and 4, the operation of the vehicle emergency alert system of the present invention will be described.

First, when power is supplied to the vehicle emergency alert apparatus 10 or 10 'of the present invention, the controller 200 or 210 determines whether the vibration signal received by the vibration sensor of the sensor unit is equal to or greater than a reference value (step S100). If the vibration signal of the vibration sensor is not greater than the reference value, it is regarded that the vehicle is not turned on, and the power is turned off to the GPS receiver of the sensor unit (step S110). Step S110 is to turn off the power if the power is supplied to the GPS receiver. If the power is not supplied to the GPS receiver, the power is not supplied. This procedure is accomplished by a power supply switching operation in accordance with a command from the control unit. After performing step S110, the procedure proceeds to step S100 and determines whether the vibration signal received from the vibration sensor is equal to or greater than a reference value. On the other hand, if the value of the vibration signal is greater than the reference value, the controller causes the GPS receiver to supply power (step S120). This procedure is accomplished by a power supply switching operation in accordance with a command from the control unit.

Next, the position of the vehicle is continuously received from the GPS receiver with respect to time (step S130), and the speed and acceleration of the vehicle are calculated from the position of the received vehicle (step S140). The speed of the vehicle can be obtained by differentiating the position of the continuously received vehicle with respect to time, and the acceleration of the vehicle can be obtained by differentiating the speed of the vehicle with respect to time.

The control unit determines whether the acceleration of the vehicle thus obtained is less than or equal to the reference acceleration (step S150). At this time, the reference acceleration has a negative value. Therefore, the control unit is to determine whether the vehicle is decelerating and the acceleration magnitude of the vehicle is greater than or equal to the reference acceleration magnitude. In other words, the control unit judges the degree of deceleration of the vehicle.

If the degree of deceleration of the vehicle is not equal to or greater than the reference value, it means that there is no emergency in the front of the vehicle, so the procedure returns to step S100 and continues. However, if the degree of deceleration of the vehicle is equal to or greater than the reference value, it means that an emergency has occurred in front of the vehicle. Therefore, the control unit generates an LED lamp flashing command of the display unit 300 or 320 and transmits it to the display unit (step S160). Then, the display unit 300 or 320 flashes the LED lamp.

In this situation, the control unit continuously receives the position of the vehicle from the GPS receiver continuously over time (step S170) to determine whether the emergency situation continues in the front of the vehicle again or if the emergency situation is released (step S170) The vehicle speed and acceleration are calculated (step S180). Then, the control unit determines whether the vehicle speed is greater than zero (step S190).

If the speed of the vehicle is not greater than zero, that is, if the vehicle speed is zero, it corresponds to a case where the vehicle stops due to a collision or collision with a preceding vehicle or a roadside facility. So that the LED lamp of the display unit 300 or 320 is continuously flickered. If the vehicle speed is zero, the control unit measures the elapsed time of such a state and compares the elapsed time with the reference value (step S200). If the elapsed time does not meet the reference value, the procedure returns to step S190 to determine whether the speed continues to be zero. If the elapsed time reaches the reference value, the power supply to the GPS receiver is interrupted (step S210), and the procedure returns to step S100 and continues. The reference value for the elapsed time can be appropriately selected as the time required for the accident process after occurrence of a collision accident, for example, it may be 30 minutes to 1 hour.

On the other hand, when the vehicle speed is greater than zero, that is, when the vehicle is moving, it is determined whether or not the vehicle is decelerating or accelerating (step S230).

If the acceleration of the vehicle is less than 0, that is, if the vehicle is continuously decelerating, it means that the emergency situation is continuing in front of the vehicle. Therefore, it is determined that the emergency should be maintained and the LED of the display unit 300 or 320 The procedure continues to step S170 and continues to receive the location of the vehicle from the GPS receiver while the ramp continues to flash. On the other hand, when the acceleration of the vehicle is 0 or more, it is determined that the emergency in the front is released and the LED lamp of the display unit 300 or 320 is turned off (step S240).

In FIG. 4, the determination as to whether or not the acceleration of the vehicle is equal to or greater than 0 is made at any one time. However, it is preferable to determine whether the vehicle speed is kept the same or increases in the non-zero state for a predetermined time. Here, the predetermined time may be appropriately selected, but may be, for example, 0.01 second to 0.1 second.

In fact, a seasoned driver is likely to repeat the braking step in order to ensure the safety of the vehicle, even if the driver suddenly brakes suddenly in the face of an emergency. In addition, in the vehicle employing the ABS (Anti-Brake System), even if the driver continuously applies the brakes, the brakes are repeatedly operated and non-operated by the operation of the ABS. According to this operation, the moment the foot is released from the brake while the brake pedal is depressed, the speed may slightly increase momentarily. Therefore, if it is determined in step S230 that the instantaneous acceleration is equal to or greater than 0, an error may occur. Therefore, in step S230, it is preferable to determine the average acceleration for a time interval of, for example, 0.01 second to 0.1 second, rather than determining the instantaneous acceleration as an object.

Next, the control unit judges whether or not a request for power-off (Off) is inputted (step S250). In such a case, the procedure is terminated, and if there is no request for power-off, the procedure returns to step S100 and continues.

This procedure is carried out when the vehicle emergency alert device 10 of the present invention is attached to the rear window of the vehicle or when the display device 14 of the vehicle emergency alert device 10 'of the present invention is attached to the rear window glass of the vehicle And the vehicle emergency alert device 10 or 10 'of the present invention is powered by its own battery unit 400 or 410 and 420 regardless of the battery of the vehicle, And the display unit 300 or 320 of the display unit 300 or 320 of FIG. Therefore, the vehicle emergency alert system of the present invention can be used without a serious test on the safety of the vehicle because the vehicle emergency alert system does not have a lethal effect on the vehicle even if a malfunction occurs. Thus, the ratio of the price to the performance is high, Even if the power supply system by the battery is damaged, it can be operated normally, so that the emergency warning function of the vehicle can be reliably performed. Also, the safety of the vehicle can be taken even if the driver is inexperienced. .

Meanwhile, as described above, the above-described procedures are preferably performed only when vibration is detected by a vibration sensor installed separately from the GPS receiver in the vehicle emergency alert device 10 or 10 '. That is, the control unit receives the vibration signal from the vibration sensor and supplies power to the GPS receiver only when the received vibration signal is greater than the predetermined reference value, thereby performing the above-described procedures. On the other hand, when the vibration signal received from the vibration sensor is smaller than the reference value, the controller cuts off the power supply to the GPS receiver. Thus, the control of the procedure performed by the vibration signal of the vibration sensor enables the GPS receiver to operate when the vehicle is traveling or stopped, while preventing the GPS receiver from operating when the vehicle is parked, So that the power management can be appropriately performed.

10, 10 ': vehicle emergency alarm device 12: main body
14: display device 100, 110:
200, 210: control unit 300, 320:
400, 410, 420: Battery section 500, 510, 520:
600,610,620 solar cell 700,710 input unit
810, 820:

Claims (5)

A sensor unit for detecting any one of a position, a velocity and an acceleration of the vehicle; an acceleration calculating unit for calculating an acceleration of the vehicle based on the data received from the sensor unit, comparing the calculated acceleration of the vehicle with a reference acceleration, A control unit for generating an LED lamp flashing command when the acceleration magnitude of the vehicle is greater than the reference acceleration magnitude; a display unit including an LED lamp blinking according to an LED lamp flashing command issued by the control unit; And a battery unit for supplying power to the display unit,
Wherein the vehicle emergency alert device is mounted on the vehicle independently of the devices that operate the vehicle and the battery section of the vehicle emergency alert device is separately provided for the battery of the vehicle and operates independently, Wherein the display unit of the apparatus is separately provided for the emergency light of the vehicle and operates independently. A sensor unit for detecting any one of a position, a velocity and an acceleration of the vehicle; an acceleration calculating unit for calculating an acceleration of the vehicle based on the data received from the sensor unit, comparing the calculated acceleration of the vehicle with a reference acceleration, A controller for generating an LED lamp flashing command when the acceleration magnitude of the vehicle is greater than the reference acceleration magnitude, a wireless communication unit for wirelessly transmitting an LED lamp flashing command of the controller, a sensor unit, A wireless communication unit for receiving the LED lamp flashing command generated by the main body control unit by wireless communication with the main body wireless communication unit, a main body including a battery unit for supplying power, LED lamp which receives the LED lamp flashing command and flickers according to the LED lamp flashing command And a display unit including a wireless communication unit and a battery unit for supplying power to the display unit,
Wherein the vehicle emergency alert device is mounted on the vehicle independently of the devices that operate the vehicle and the battery sections of the main body and the display device are separately provided to operate independently of the battery of the vehicle, Wherein the display unit of the vehicle emergency alarm apparatus is separately provided for the emergency light of the vehicle and operates independently. 3. The method according to claim 1 or 2,
The control unit generates a command to turn off the LED lamp of the display unit when the speed of the vehicle is maintained to be the same or increases for a predetermined period of time while the LED lamp of the display unit is blinking Emergency alarm system for vehicles. 3. The method according to claim 1 or 2,
Wherein the vehicle emergency alert system further includes a vibration sensor, and the sensor unit detecting any one of a position, a speed, and an acceleration of the vehicle is operated when vibration is detected by the vibration sensor. . 5. The method of claim 4,
In the vehicle emergency alert system, the battery units are secondary batteries, and the vehicle emergency alert system further includes a charging terminal for charging the battery units, and the vehicle emergency alert system or the vehicle emergency alert system Wherein the apparatus further comprises a solar cell, and the battery supplying power to the display unit is charged by the solar cell through the charging terminal.

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