Escape system used for cars being sunken into water and ultrasonic component

An ultrasonic component, at least comprising:

• a case, having a reception space therein, at least one side of the case has at least one penetration hole;
• and
• an ultrasonic module, disposed in the reception space, the ultrasonic module comprises an ultrasonic signal transmitting unit, at least one top receiving unit electrically connected to the ultrasonic signal transmitting unit, a calculation unit electrically connected to the top receiving unit and a signal transmitting unit electrically connected to the calculation unit;
• both of the ultrasonic signal transmitting unit and the top receiving unit are disposed at one side of the reception space, and the ultrasonic signal transmitting unit and the top receiving unit are disposed on a top part of the reception space;
• wherein the ultrasonic signal transmitting unit projects an ultrasonic wave;
• the ultrasonic signal transmitting unit is disposed at a projection point, the ultrasonic signal transmitting unit projects the ultrasonic wave to a bottom wall surface of the case with a projection angle, wherein the projection angle is a complementary angle of an angle formed between a propagating direction of the ultrasonic wave and a gravity line of the projection point, and the projection angle is less than 90 degrees and larger than 0 degree;
• wherein the ultrasonic wave firstly collides with a reflection point of the bottom wall surface, and then is reflected to generate a primary reflection wave;
• the primary reflection wave propagates toward a top wall surface of the case, and then firstly collides with a scheduled reception point of the top wall surface;
• a primary path is formed from a path from the projection point to the reflection point and a path from the reflection point to the scheduled reception point;
• the top receiving unit is disposed in the primary path, the ultrasonic signal transmitting unit projects the ultrasonic wave by projecting an ultrasonic pulse wave with a pulse repetition period, and the pulse repetition period is transmitted to the top receiving unit;
• when the top receiving unit does not receive a reflection wave in two adjacent pulse repetition periods, the top receiving unit generates an interrupt signal to the calculation unit, wherein the reflection wave is generated after the ultrasonic wave collides with at least one obstacle on a bottom part of the reception space;
• the calculation unit converts the interrupt signal into a car sunken signal or an obstacle signal, and transmits the car sunken signal or the obstacle signal to the signal transmitting unit.

An ultrasonic component, at least comprising:

• a case, having a reception space therein, at least one side of the case has at least one penetration hole;
• and
• an ultrasonic module, disposed in the reception space, the ultrasonic module comprises an ultrasonic signal transmitting unit, at least one bottom receiving unit electrically connected to the ultrasonic signal transmitting unit, a calculation unit electrically connected to the bottom receiving unit and a signal transmitting unit electrically connected to the calculation unit;
• the ultrasonic signal transmitting unit and the bottom receiving unit are disposed at opposite sides of the reception space, and the bottom receiving unit is disposed on a bottom part of the reception space;
• wherein the ultrasonic signal transmitting unit projects an ultrasonic wave;
• the ultrasonic signal transmitting unit is disposed at a projection point, the ultrasonic signal transmitting unit projects the ultrasonic wave to a bottom wall surface of the case with a projection angle, wherein the projection angle is a complementary angle of an angle formed between a propagating direction of the ultrasonic wave and a gravity line of the projection point, and the projection angle is less than 90 degrees and larger than 0 degree;
• when at least one obstacle exists in the case, the ultrasonic wave firstly penetrates the obstacle, and then a penetration wave is generated while a reflection wave is correspondingly generated;
• an incidence angle is formed by a propagating direction of the ultrasonic wave and an obstacle thickness direction of the obstacle, and the incidence angle is a complementary angle of the projection angle;
• the propagating direction of the penetration wave and the obstacle thickness direction of the obstacle form a refraction angle, and the bottom receiving unit calculates a tangent value of the refraction angle as follows:
• tan
• ⁢
• ⁢
• (
• θ3
• )
• =
• D
• ⁢
• 2
• -
• (
• D
• ⁢
• ⁢
• 1
• 2
• )
• h
• ;
• wherein tan(θ3) is the tangent value of the refraction angle;
• D2 is a second distance which is a distance between a gravity line of the bottom receiving unit and the gravity line of the projection point;
• D1 is a first distance which is a distance between a gravity line of a top receiving unit and the gravity line of the projection point;
• h is an obstacle thickness;
• the obstacle thickness is expressed as follows:
• h
• =
• H
• -
• B
• 2
• ×
• sin
• ⁢
• ⁢
• (
• θ1
• )
• ;
• wherein H is a first height deviation, B is a reflection distance, and sin(θ1) is a sine value of the projection angle, the ultrasonic signal transmitting unit and the bottom wall surface has the first height deviation therebetween, and the reflection distance is obtained by multiplying a speed of the reflection wave with a reflection time difference obtained by the top receiving unit;
• the refraction angle is calculated by the bottom receiving unit according to the tangent value of the refraction angle, and then transmitted to the calculation unit;
• the calculation unit compares the refraction angle with the incidence angle;
• when the refraction angle is not identical to the incidence angle, the calculation unit generates a car sunken signal or an obstacle signal to the signal transmitting unit, and the signal transmitting unit transmits the car sunken signal or the obstacle signal via a wired or wireless manner.

An ultrasonic component, at least comprising:

• a case, having a reception space therein, at least one side of the case has at least one penetration hole;
• and
• an ultrasonic module, disposed in the reception space, the ultrasonic module comprises an ultrasonic signal transmitting unit, at least one bottom receiving unit electrically connected to the ultrasonic signal transmitting unit, a calculation unit electrically connected to the bottom receiving unit and a signal transmitting unit electrically connected to the calculation unit;
• the ultrasonic signal transmitting unit and the bottom receiving unit are disposed at opposite sides of the reception space, and the bottom receiving unit is disposed on a bottom part of the reception space;
• wherein the ultrasonic signal transmitting unit projects an ultrasonic wave;
• the ultrasonic signal transmitting unit is disposed at a projection point, the ultrasonic signal transmitting unit projects the ultrasonic wave to a bottom wall surface of the case with a projection angle, wherein the projection angle is a complementary angle of an angle formed between a propagating direction of the ultrasonic wave and a gravity line of the projection point, and the projection angle is less than 90 degrees and larger than 0 degree;
• when at least one obstacle exists in the case, the ultrasonic wave firstly penetrates the obstacle, and then a penetration wave is generated while a reflection wave is correspondingly generated;
• an incidence angle is formed by a propagating direction of the ultrasonic wave and an obstacle thickness direction of the obstacle, a reflection angle is formed by an obstacle thickness direction of the obstacle and a propagating direction of a reflection wave which the ultrasonic wave is reflected by the obstacle, and the incidence angle is a complementary angle of the projection angle;
• the reflection angle and the incidence angle form an obstacle reflection angle, the obstacle reflection angle is twice of the incidence angle;
• a propagating direction of the penetration wave and the obstacle thickness direction of the obstacle form a refraction angle, and the bottom receiving unit calculates a tangent value of the refraction angle as follows:
• the penetration wave collides with the bottom receiving unit to generate a receiving unit reflection wave, the propagating direction of the penetration wave and a propagating direction of the receiving unit reflection wave form a receiving unit reflection angle, and the receiving unit reflection angle is twice of the refraction angle;
• the bottom receiving unit calculates a tangent value of the refraction angle as follows:
• tan
• ⁢
• ⁢
• (
• θ3
• )
• =
• D
• ⁢
• ⁢
• 2
• -
• (
• D
• ⁢
• ⁢
• 1
• 2
• )
• h
• ;
• P1;
• wherein tan(θ3) is the tangent value of the refraction angle;
• D2 is a second distance which is a distance between a gravity line of the bottom receiving unit and the gravity line of the projection point;
• D1 is a first distance which is a distance between a gravity line of a top receiving unit and the gravity line of the projection point;
• h is an obstacle thickness;
• the obstacle thickness is expressed as follows:
• h
• =
• H
• -
• B
• 2
• ×
• sin
• ⁡
• (
• θ1
• )
• ;
• wherein H is a first height deviation, B is a reflection distance, and sin(θ1) is a sine value of the projection angle, the ultrasonic signal transmitting unit and the bottom wall surface has the first height deviation therebetween, and the reflection distance is obtained by multiplying a speed of the reflection wave with a reflection time difference obtained by the top receiving unit;
• the refraction angle is calculated by the bottom receiving unit according to the tangent value of the refraction angle, and then transmitted to the calculation unit, the calculation unit compares the obstacle reflection angle with the receiving unit reflection angle;
• when the obstacle reflection angle is not identical to the receiving unit reflection angle, the calculation unit generates a car sunken signal or an obstacle signal to the signal transmitting unit, and the signal transmitting unit transmits the car sunken signal or the obstacle signal via a wired or wireless manner.