KR200224317Y1 - Electronic Equipment Raising an Alarm and Controlling Overspeed - Google Patents

Abstract

The present invention relates to an electronic alarm for preventing a crash of a car, and aims to call out harmful attention of a driver, which is a main cause of a car accident, and to automatically control a car in an emergency to prevent a crash.

Infrared detection detects obstacles and measures distance, and stop distance data derived from driving speed when obstacles are detected. It is a configuration of the electronic alarm that prevents the collision of the car in advance by supplementing the control work made by the driver by automatically controlling the prime mover when urgent.

Infrared detection detects obstacles, measures distances, predicts accidents, and controls driving speed, so it is possible to prevent contact or collision accidents in normal weather as well as bad weather or rain.

Description

Electronic Equipment Raising an Alarm and Controlling Overspeed

It alerts when an obstacle is within the danger range of a collision, and when the danger is excessive, it relates to an electronic alarm that controls the power to prevent an accident.

Car crash accidents are directly related to life, and many studies have been conducted.

'Automatic seat reversing device in car crash' (Sil-1996-068801) is designed to prevent injuries by preventing the seat or body of the occupant from getting stuck in the engine compartment when the car crashes. 'Car occupant safety devices by displacement correction' (Team-1997-048991) has been studied for similar purposes and contents.

The above studies can be categorized into areas that minimize the loss of life after the accident. There are cases where airbags are widely used in this way, and since these are emergency measures taken after an accident occurs, the car is a measure after the damage is already done, and it is almost useless if the speed is excessive.

'Rear view device using glass fiber (glass fiber)' (20-1999-0016131) is a study to prevent accidents by visually identifying obstacles on the back of the car through glass fiber. This study is the purpose and method of taking measures to prevent accidents in advance. GM Korea uses a Cadillac Devil 2000 equipped with a night vision that uses infrared cameras to detect people or objects that do not fit into the driver's field of vision and illuminates the front of the driver's seat so that the driver can see the images and avoid accidents. It was announced that it will be released.

Unlike the former method, the latter method can be said to be an advanced method in that the driver can prevent the accident by controlling the car before the accident occurs by viewing the image reflected on the front surface by the electronic device.

If the cause of a car crash is caused by inadvertent accidents and lack of attention by the driver, it is necessary to introduce warnings and control of driving by objective methods that do not rely solely on the subjective judgment of the driver. have.

Projection of obstacles in the driver's face, such as night vision, may be a way of preventing accidents, but the need to watch the screen while driving causes another distraction, and the perspective is unclear in video. Given that temporary unconsciousness, such as drowsiness or distraction of attention, can cause an accident, it is inefficient to attempt to prevent a car accident in advance by illuminating obstacles on the screen and relying on the driver's arbitrary and subjective judgment. none.

The driving speed of the car includes the stop distance plus the braking distance, which should be referred to when stopping, and is directly involved in the collision or stopping.

Case 1; List of stopping distances according to the traveling speed (based on passenger car)

Travel Speed / Stop Distance Travel Speed / Stop Distance Travel Speed / Stop Distance

20km / h 9m 30km / h 15m 40km / h 22m

50km / h 32m 60km / h 44m 70km / h 58m

80km / h 76m 90km / h 93m 100km / h 112m

(National Police Agency supervision / driver's license department textbook / 97.7.20 / Korea Automotive Academy Association / municipal publishing company)

Because of the human nature, intermittent distraction is inevitable, and collisions caused by other parties are inevitable, so it is not possible to prevent accidents only by subjective judgment of the driver. It is necessary to devise a way to alert the user in an irritating way, and to control the speed of the car automatically to prevent accidents.

Warning and control based on the stopping distance (hereinafter referred to as 'standard stopping distance') derived by combining the distance data between the stopping distance and obstacles inherent in the traveling speed at the time when the vehicle starts to stop. There is little variation, and it is necessary to configure an alarm that is cheap, simple, easy to handle, and can be received by the public as it is comparable to the method of preventing accidents by the imaging method.

Fig. 1. Top view of the outline Fig. 2. Front view of the outline

Figure 3. Rear view of the outline Figure 4. Side perspective view

Fig. 5. Inside perspective view Fig. 6. Inside perspective view

Fig. 7. Principle of electronic circuit Fig. 8. Principle of distance measurement

<Description of Drawing>

1-x .. Relay Regulator (Resistor) 2-x .. Relay Configuration

3-x .. diode 4-x .. photo-diode

4-7a. Connection terminal 5-x .. Inverter

6-1 .. Green traffic light 6-2 .. Yellow warning light

6-3 .. orange warning light 6-4 .. red warning light

7-1 .. buzzer 7-2 .. buzzer

8 ... relay 9 ... speedometer

10. Speed sensor connection terminal 11. Motor ignition distributor

12. Engine drive path connector 13. Infrared condenser lens

14 .. Infrared Light Emitting Diode

15. Infrared radiation window 16. Amplifier

17 .. Power switch 18. Electronic circuit block

19 .. Air outlet 20 .. Distance measurement formula

(X-x) is the symbol that represents the same kind.

The principle of preventing a car crash accident in a mechanical and objective way is to reconstruct the data measured by the distance from obstacles in the infrared and the stopping distance data derived from the driving speed by complementary action to warn each risk. It also urges the driver to adjust the speed of the car (called 'infrared alarm') and limits the speed by controlling the prime mover when the degree of danger is excessive.

An overview of the construction and operation of an infrared alarm is that when the infrared radiation emitted by the infrared emitter is reflected from an obstacle and is focused on the photodiode by the condenser lens, the photodiode is passed through a relay and a diode to an L active signal input inverter (hereinafter simply referred to as an 'inverter'). By converting the H active signal supplied as the stop distance data, the inverter relays the signal to the warning lamp and the horn to give a warning. (Figure 7)

The main body is configured to combine the distance measuring circuit with the obstacle and the stopping distance docking circuit to determine the risk by interaction and to warn or brake according to the risk.

In the case of a passenger car, if it is 100km / h referring to Article 17, `` Securing safe distances '' of the Road Traffic Act, Article 15, Compliance with speed and legal speed, and Article 12, Speed and safety distance on highways, etc. When the obstacle is outside 100m, the safety distance was used as a standard.

The stopping distance can be set according to the driving speed of the vehicle by setting the relay in 5 steps (2-x) and differentially adjusting the regulator (1-x) attached to the relay so that a specific relay is selected according to the driving speed of the vehicle. When selected (case 2), the active signal is relayed to the photodiode 4-x and the inverter 5-x so that the active signal replaces the stopping distance.

The relay 2-x differentially adjusts the regulator 1-x to operate at the traveling speed as in the following example. However, 'Case 2' and 'Case 3' below are references to the stopping distances of 'Case 1' and are made according to private experience by private cars, and thus are not approved. In practice, the level of the relay and the speed of the relay are adjusted differently according to the characteristics of the type, size and weight of the vehicle.

Case 2; Correspondence between relay phase and vehicle speed

Relay / Travel Speed Relay / Travel Speed

2-4a = 130 km / h or more 2-4b = 100 km / h to 130 km / h

2-3 = 70 km / h to 100 km / h 2-2 = 40 km / h to 70 km / h

2-1 = 10 km / h to 40 km / h

Relay 2-1 acts between 10km / h and 40km / h, and relay 2-2 acts when it is over 40km / h, and relay 2-3 acts when it is over 70km / h, over 100km / h When the controller 2-4b is set to 130km / h or more, the controller 1-x installed in the relay 2-x is adjusted so that the controller 2-1a operates so that the regulator 1-x is adjusted according to the traveling speed. Is selected to cause the relay 2-x to relay the active signal to the diode 3-x.

The photodiode (4-x) is a device that detects the distance to an obstacle and at the same time obtains data on the degree of risk of collision with the obstacle by adjusting the stopping distance. (5-x)

Case 3; Distance correspondence between photodiode and obstacle

4-1 = 120 m or more, 4-2 = 100 m to 120 m, 4-3 = 80 m to 100 m,

4-4 = 60m to 80m, 4-5 = 40m to 60m, 4-6 = 20m to 40m, 4-7 = 0m to 20m

For example, 4-2 converts an active signal transmitted from a relay by recognizing a distance of 100 m to 120 m from an obstacle to convey its position information.

The arrangement of the photodiode 4-x, the detection of obstacles, and the distance measurement with the obstacles will be described with reference to FIG. 8 as follows.

The axis of infrared radiation emitted by the infrared emitter 14 is referred to as 'L', and the infrared condenser lens 13 and the photodiode 4-x are arranged so as to be perpendicular to the axis 'L' of the radiation infrared ray, 13) the axis 'S', the focus of the reflected infrared ray 'P', the distance between the focus 'P' and the condenser lens 13 'F', the focus 'P' and the axis 'S' of the condenser lens 13 When the distance between the 'T', the focal point 'P', and the distance 'L' of the axis of the infrared emitter 14 is 'W', the distance 'L' from the obstacle is formed by the trigonometry. .

L = 1 / TWF ---- (20)

By arranging photodiodes 4-x corresponding to the distance to the obstacle, the photodiode 4-x corresponding to the distance to the obstacle is positioned at the point 'T' corresponding to the distance to the obstacle, that is, the focus P made by the condenser lens 13. When the infrared rays reflected from the obstacle by the lens 13 are focused on a specific photodiode 4-x (Fig. 8), the photodiode 4-x is derived from the traveling speed by the photoconductive effect and is used as a stop distance data. The associated inverter (5-x) acts as a warning device by converting the supplied H active signal (3-x) into an L active signal, i.e., according to the reference stop distance obtained by combining the distance between the stopping distance and the obstacle. Warnings 6-x and 7-x, and if the degree of danger is excessive, the relay (8) operates to control the power (Fig. 7).

By combining the circuit (3-x) for deriving the stopping distance from the driving speed and the circuit (4-x) for detecting the distance to the obstacle (FIG. 7), the distance to the obstacle by the interaction is adjusted to the stopping distance data. The stopping distance adjusts the distance data with the obstacles, and derives the standard stopping distance with less error from the actual stopping distance (5-x) to warn the danger according to the risk (6-x), (7-x) If the speed is excessive, the driving speed is also controlled (8).

An example of the operation of the relay will be described with (Example 4) and (FIG. 7). When the traveling speed is within 70 km / h to 100 km / h (Example 2), the relays 2-1 and 2-2 are dependent on the traveling speed. 'C' is connected to contact 'a' and the current (active signal) is connected to the photodiode (4-x) and inverter via the upper relay 2-3 and the diode (3-x) of relay 2-3. Relayed to (5-x).

If the obstacle exists outside the 120m in the above-mentioned driving speed environment, the reflected infrared light is focused on the photodiode 4-1 (case 3), so that the H active signal of the diode 3-1 is converted into the L active signal by the photoconductive effect. The associated inverter 5-1 acts to illuminate the green traffic light 6-1 and signal that the vehicle is in a safe environment.

When the obstacle approaches within 100 m to 120 m, the reflected infrared light is focused on the photodiode 4-2 (case 3). When the photoconductive effect converts the H active signal of diode 3-2 into an L active signal, the associated inverter 5-1 acts to light the green traffic light 6-1 and signal that the vehicle is in a safe environment.

When an obstacle approaches within 80m to 100m, the reflected infrared light is condensed on the photodiode 4-3 (case 3). When the photoconductive effect converts the H active signal to the L active signal, the associated inverter 5-2 is activated and yellow. The warning lamp 6-2 lights up, warns that obstacles are approaching and requires attention to operation.

When an obstacle approaches within 60m to 80m, the reflected infrared light is condensed on the photodiode 4-4 (case 3). When the photoconductive effect converts the H active signal to the L active signal, the associated inverter 5-3 acts and turns orange. The warning lamp (6-3) lights up to warn of danger. At the same time, the low horn 7-1 also warns and urges you to take slow or evasive action.

When an obstacle approaches within 40m to 60m, the reflected infrared light is condensed on the photodiode 4-5 (case 3), and the inverter 5-4, which is connected to the photoconductive effect by converting the H active signal into the L active signal, A red warning light (6-4) and a treble horn (7-2) warn of the danger of a collision and urge you to take action to slow down or avoid. The relay 8 also acts to block the prime mover drive path 12 and to disable power to control the traveling speed (engine brake) to maintain distance from obstacles to prevent collisions.

When an obstacle approaches within 20m to 40m, the reflected infrared light is condensed on the photodiode 4-6, converting the active signal of the diode 3-6 (case 3), and other warnings are operated when the obstacle in the preceding paragraph approaches 40m to 60m. Same as if you did.

Photodiodes 4-7 with a distance of 0m to 20m are warning devices when an obstacle approaches within 20m ahead. In the rear, if the photodiode and infrared emitter are separately installed and connected to terminals 4-7a, if the car passing behind is approaching within 20m while driving or if there is an obstacle within 20m when the car reverses, the H active signal of diode 3-7 Is converted into an L active signal, and the associated inverter 5-3 acts to warn the orange warning light 6-3 and the woofer warning 7-1 to be careful.

When the traveling speed is within 100 km / h to 130 km / h, the moving horses 'c' of the relays 2-1, 2-2 and 2-3 are connected to the contact 'a' and the moving horses 'of the relay 2-4' c 'adjusts the regulator (1-x) to be connected to the contact' b '(case 2) (Fig. 7), and the stopping distance inherent in the traveling speed of 100 km / h to 130 km / h is 2-4 diodes. Relayed to (3-x) as an active signal. The action of the photodiode 4-x and the inverter 5-x according to the distance to the obstacle and the operation of the warning light 6-x, the horn 7-x and the relay 8 are as described above. Omit (Example 4)

If the traveling speed exceeds 130 km / h, the active signal is transmitted via the red warning light (6-4) and treble via 2-1, 2-2, 2-3, 2-4a, 5-5, 5-4. It warns with a horn (7-2) and controls the power of the prime mover. (8) It is configured to maintain the safety distance without exceeding the upper limit of the legal traveling speed.

The operation of the infrared alarm according to the driving speed is summarized as follows.

Case 4; List of Active Signal Paths and Warnings by Driving Speed, Distance to Obstacles

Path warning over 130 km / h

2-1, 2-2, 2-3, 2-4a, 5-5, 5-4, 6-4, 7-2, 8 (Danger, Red, Treble, Stop)

100 km / h to 130 km / h

More than 120m

2-1, 2-2, 2-3, 2-4b, 3-1, 4-1, 5-1, 6-1 (safety, green)

100 m to 120 m

2-1, 2-2, 2-3, 2-4b, 3-2, 4-2, 5-2, 6-2 (Attention, Yellow)

80 m to 100 m

2-1, 2-2, 2-3, 2-4b, 3-3, 4-3, 5-3, 6-3, 7-1 (boundary, orange, bass)

60 m to 80 m

2-1, 2-2, 2-3, 2-4b, 3-4, 4-4, 5-4, 6-4, 7-2, 8 (Danger, Red, Treble, Stop)

40m-60m

2-1, 2-2, 2-3, 2-4b, 3-5, 4-5, 5-4, 6-4, 7-2, 8 (Danger, Red, Treble, Stop)

20 m to 40 m

2-1, 2-2, 2-3, 2-4b, 3-6, 4-6, 5-4, 6-4, 7-2, 8 (Danger, Red, Treble, Stop)

70 km / h to 100 km / h

More than 120m

2-1, 2-2, 2-3, 3-1, 4-1, 5-1, 6-1 (safety, green)

100 m to 120 m

2-1, 2-2, 2-3, 3-2, 4-2, 5-1, 6-1 (safety, green)

80 m to 100 m

2-1, 2-2, 2-3, 3-3, 4-3, 5-2, 6-2 (Attention, Yellow)

60 m to 80 m

2-1, 2-2, 2-3, 3-4, 4-4, 5-3, 6-3, 7-1 (boundary, orange, bass)

40m-60m

2-1, 2-2, 2-3, 3-5, 4-5, 5-4, 6-4, 7-2, 8 (Danger, Red, Treble, Stop)

20 m to 40 m

2-1, 2-2, 2-3, 3-6, 4-6, 5-4, 6-4, 7-2, 8 (Danger, Red, Treble, Stop)

40 km / h to 70 km / h

More than 120m

2-1, 2-2, 3-1, 4-1, 5-1, 6-1 (safety, green)

100 m to 120 m

2-1, 2-2, 3-2, 4-2, 5-1, 6-1 (safety, green)

80 m to 100 m

2-1, 2-2, 3-3, 4-3, 5-1, 6-1 (safety, green)

60 m to 80 m

2-1, 2-2, 3-4, 4-4, 5-2, 6-2 (Attention, Yellow)

40m-60m

2-1, 2-2, 3-5, 4-5, 5-3, 6-3, 7-1 (boundary, orange, bass)

20 m to 40 m

2-1, 2-2, 3-6, 4-6, 5-4, 6-4, 7-2, 8 (Danger, Red, Treble, Stop)

10 km / h to 40 km / h

More than 120m

2-1, 3-1, 4-1, 5-1, 6-1 (safety, green)

100 m to 120 m

2-1, 3-2, 4-2, 5-1, 6-1 (safety, green)

80 m to 100 m

2-1, 3-3, 4-3, 5-1, 6-1 (safety, green)

60 m to 80 m

2-1, 3-4, 4-4, 5-1, 6-1 (safety, green)

40m-60m

2-1, 3-5, 4-5, 5-2, 6-2 (Attention, Yellow)

20 m to 40 m

2-1, 3-6, 4-6, 5-3, 6-3, 7-1 (boundary, orange, bass)

0m to 20m (front surveillance 4-7 / rear surveillance 4-7a)

2-1, 3-7, 4-7, 4-7 (a), 5-3, 6-3, 7-1 (Note, orange, bass)

The feature of this configuration is that the relay is selected in accordance with the traveling speed, the photodiode is selected in accordance with the distance to the obstacle, and the combination is then combined to derive the reference stop distance data with less actual stop distance and deviation. 7)

Warnings that call attention are divided into four phases and signaled by warning lights and warning sounds. The first is the phase of absolute crisis, illuminating the red light (6-4) and alerting you that you are in a crisis just before the crash with a high horn (7-2) to indicate that the prime mover is in an incompetent state. Second, just before the danger, the orange warning light 6-3 is turned on and urged to be alerted by the low horn 7-1. The third is a step requiring attention, and lights a yellow warning light 6-2. The fourth step is the safe state, which lights up the green traffic light 6-1 and indicates that the alarm is operating normally.

The above-described configuration of the infrared alarm is shown in principle and configuration in a simple and theoretical form in order to facilitate understanding and expression, and is not proposed by them. As an example, it can be seen that the relay can be easily replaced by a solid-state relay, and the configuration of the photodiode for measuring the distance to the obstacle can be replaced by a semiconductor position sensing device (Position Sensitive device). It can be seen that the relay, the light receiving element, and the integrated circuit can be utilized. Accordingly, the following claims include equivalents other than those described above that fall within the scope of this construction.

The combination of a circuit that measures the distance to obstacles in the infrared and a circuit that derives the stopping distance from the driving speed determines the risk, alerts you with a warning light and a warning sound, alerts you, and controls the power when the risk is excessive. Maintaining a safe distance has the following advantages.

1. As it detects obstacles by infrared rays, it detects and alerts to obstacles that are invisible to the driver even in bad weather or at night, thereby preventing the risk of collision even in bad weather or at night.

2. Even if you have missed the approach of the obstacle within the stopping distance by mistake or illusion, you can prevent the accident by warning the collision in advance.

3. Awakenings, distractions, interruptions and other accidents caused by mental hazards can be aroused by arousing signs to prevent it.

4. You may not be able to drive above the barred speed.

5. It is expected that the demand of the public will be high because the mechanical warning of danger is made by the objective data, the reliability is high, the utility value is high in view of the complicated road environment, and it is cheap and easy to handle compared to the accident prevention method by the video equipment.

Claims (1)

The relay 1-x is adjusted so that the relay 2-x is selected according to the traveling speed, so that a specific relay 2-x is selected by the traveling speed and relayed in a multi-stage relay. By dividing the speed and substituting the inherent stopping distance as a current, it is relayed to the photodiode (4-x) of the infrared circuit which detects an obstacle and derives the distance by a diode (3-x) that controls the reverse of the current. According to the distance from the detected obstacle, the risk of collision or collision is adjusted so that the error is small, that is, the driving speed is divided and the stopping distance is derived, and the risk is adjusted according to the distance from the obstacle. The inverter (5-x) to select selectively relays to the alarm (6-x, 7-x) and alerts by sound and color light according to the danger level. When the danger is excessive, the relay (8) moves the prime mover. Of Electronic alarm using infrared rays, characterized in that to prevent the collision of the vehicle in advance by controlling the power by blocking the electric circuit 12