TWI675770B - Car door open warning device and method - Google Patents

Abstract

A door opening warning device is suitable for being installed in a vehicle. The vehicle includes a warning device and a door. The door opening warning device includes a vehicle stop detection unit, a lock detection unit, a photographic detection module, and a control unit. It is detected that the vehicle generates a stop signal when the vehicle is stopped. The car lock detection unit detects that the vehicle door is unlocked and generates an unlock signal. The camera detection module generates a front warning signal when it detects that there is a target object at a safe distance ahead. When the control unit receives the stop signal and the unlock signal, the control warning device generates a first-stage warning output, and when the control unit receives a forward warning signal, the control unit controls the warning device to generate a second-stage warning output.

Description

Door opening warning device and method

The invention relates to a door opening warning device and a door opening warning method, in particular to a door opening warning device and method for detecting whether a vehicle is stopped and locked to control the vehicle to generate a warning output.

The road is as dangerous as a tiger's mouth, and there are countless traffic accidents on the road. For example, after the vehicle is parked, when driving in the car or passengers are getting off the car, they often do not notice whether there is a car coming in or a pedestrian is passing by. In addition, the situation where the car is cut diagonally and turns left suddenly may cause It is also easy for the driver or passenger to fail to notice the immediate situation ahead. If the driver is driving in the car or the passenger does not notice whether there is a passing or pedestrian passing in front or behind, he hurriedly opens the door outwards, and the passing or passing passenger or pedestrian who just passed is already unavoidable when he notices. Car accidents and accidents. Therefore, how to avoid such traffic accidents is also an important part of traffic safety.

Therefore, a first object of the present invention is to provide a door opening warning device for solving the above problems.

Therefore, the door opening warning device is suitable for being installed in a vehicle. The vehicle includes a warning device and a door. The door opening warning device includes a vehicle stop detection unit, a car lock detection unit, and a photographic detection device. Module, and a control unit.

The vehicle stop detection unit detects whether the vehicle is in a stopped state, and generates a stop signal when it is detected that the vehicle is in a stopped state. The vehicle lock detection unit detects whether the door of the vehicle is locked. An unlocked signal is generated when the door of the vehicle is unlocked. The camera detection module is controlled to shoot and detect whether a target object is approaching in front of the vehicle. When a target object is detected at a safe distance in front Generate a front warning signal, the control unit is electrically connected to the vehicle stop detection unit, the car lock detection unit, the photographic detection module and the warning device, and when the control unit receives the stop signal and the unlocked When a signal is sent, the control unit controls the warning device to generate a first-stage warning output, and the control unit controls the photographic detection module to start. When the warning device generates the first-stage warning output, and the control unit receives the When the warning signal is forward, the control unit controls the warning device to generate a second-stage warning output.

Further, the door opening warning device further includes a door sensor, which detects whether the door is open, generates an opening signal when the door is detected to be opened, and generates the first-stage warning output when the warning device generates the first-stage warning output. When the control unit receives the opening signal, the control unit controls the warning device to generate a third-stage warning output.

Further, the warning device includes a left headlight, a right headlight, a left taillight, and a right taillight. The door includes a left door and a right door. When the door sensor detects that the left door is open, an instruction is generated. When the opening signal of the left door is opened, when the control unit receives the opening signal instructing the left door to be opened, the control unit controls the left-side headlight and the left-side taillight to generate the flashing light of the third-stage warning output. When the door sensor detects that the right door is opened, the opening signal indicating that the right door is opened is generated. When the control unit receives the opening signal indicating that the right door is opened, the control unit controls the right headlight and the right taillight. This third stage warning output that produces a flashing light is generated.

Further, after the warning device generates the third-stage warning output, the door sensor detects whether the door is open, and when the door sensor detects that the left door is closed, a closing signal indicating that the left door is closed is generated, The control unit receives the closing signal to stop controlling the third-stage warning output of the left headlight and the left taillight to produce flashing light, and when the door sensor detects that the right door is closed, it generates the close indicating that the right door is closed. A signal, the control unit receives the shutdown signal to stop controlling the right-side headlight and the right-side taillight to generate the third-stage warning output that flashes and emits light.

Further, when the vehicle lock detection unit detects that the door of the vehicle is locked, a lock signal is generated, and the control unit stops operating when receiving the lock signal.

Further, the vehicle also includes a brake and gear detection device, a central control lock device, an electric control module, and a controller area network. The warning device includes a headlight, and the vehicle stop detection unit is built in. In the brake and gear detection device, the car lock detection unit is built in the central control lock device, the photography detection module and the headlight are combined into an adaptive headlight, and the control unit is built in the An electronic control module, the control unit is connected to the vehicle stop detection unit, the car lock detection unit and the photography detection module through the controller area network.

Further, the vehicle also includes a central control lock device, an electric control module, and a controller area network. The door sensor is built in the central control lock device, and the control unit is built in the electric control module. , The control unit is connected to the door sensor through the controller area network.

A second object of the present invention is to provide a door opening warning method for solving the above problems.

The door opening warning method includes a step of detecting a vehicle stop, a step of stopping a vehicle, a step of detecting a locked door, a step of unlocking a door, a step of outputting a warning in a first stage, and a step of outputting a warning in a second stage.

The step of detecting a vehicle stop is to use a vehicle stop detection unit of the door opening warning device to detect whether the vehicle is in a stopped state; the vehicle stop step is when the vehicle stop detection unit detects that the vehicle is in a stopped state A stop signal is generated; the step of detecting the door lock is to use a door lock detection unit of the door opening warning device to detect whether the door of the vehicle is locked; the step of unlocking the door is to detect when the door is locked When the unit detects that the door of the vehicle is unlocked, an unlocked signal is generated; the first stage warning output step is to use a control unit of the door opening warning device to receive the stop signal and the unlocked signal, and control A warning device of the vehicle generates a first-stage warning output; the step of detecting the oncoming vehicle in front is to take a picture using a camera detection module of the door opening warning device and detect whether a target object is approaching in front of the vehicle; the first The two-stage warning output step is to generate a forward warning signal when the camera detection module detects the target object at a safe distance in front of the vehicle. The front braking unit receives the warning signal and the alarm control means generates a second alarm output stage.

Further, the door opening warning method further includes a detection door opening step and a third phase warning output step after the first stage warning output step. The detection door opening step is a door sensor using the door opening warning device. Detecting whether the door is open; the third stage warning output step is to generate an open signal when the door sensor detects that the door is open, the control unit receives the open signal and controls the warning device to generate a third stage warning Output.

According to the above technical features, the following effects can be achieved:

1. The control unit controls the warning device when the vehicle stop detection unit and the lock detection unit detect the state of the vehicle to determine whether a state of opening the door will occur, and it is determined that a state of opening the door may occur. The first-stage warning output is issued to remind the vehicle to come in front and behind, and the camera detection module is further used to detect the front condition, and the control unit controls the warning device to issue the second-stage warning output. The effect of warning the vehicle coming in front of the vehicle is further achieved.

2. The door is detected by the door sensor, and when the door is opened, the control unit controls the warning device to issue the third-stage warning output, which further achieves the effect of warning the vehicle to come in front and rear.

3. The door opening warning device can be completely built into the vehicle's existing intelligent electronic equipment, which can achieve the function of door opening warning without increasing costs, and also make it easier to promote the door opening warning device in this case.

(1) ‧‧‧vehicle stop detection unit

(2) ‧‧‧Car lock detection unit

(3) ‧‧‧Photographic Detection Module

(4) ‧‧‧door sensor

(5) ‧‧‧Control unit

(10) ‧‧‧Warning device

(101) ‧‧‧Left headlight

(102) ‧‧‧Right headlight

(103) ‧‧‧Left tail light

(104) ‧‧‧Rear tail light

(105) ‧‧‧Front left side light

(106) ‧‧‧Left rear side light

(107) ‧‧‧Right front side light

(108) ‧‧‧Rear right side light

(20) ‧‧‧Car door

(201) ‧‧‧Left front door

(202) ‧‧‧Left rear door

(203) ‧‧‧Right front door

(204) ‧‧‧Rear right door

(S1) ~ (S13) ‧‧‧door opening warning method

[First Figure] is a block diagram illustrating an embodiment of a door opening warning device and a warning device of the present invention.

[Second Figure] is a flowchart illustrating a door opening warning method implemented in this embodiment.

[Third figure] is a schematic diagram illustrating the implementation of a first stage warning output in this embodiment.

[Fourth Figure] is a schematic diagram illustrating the implementation of a second stage warning output in this embodiment.

[Fifth Figure] is a schematic diagram illustrating the implementation of a third stage warning output in this embodiment.

Based on the above technical features, the main effects of the door opening warning device and method of the present invention will be clearly shown in the following embodiments.

Referring to the first to third figures, the door opening warning device of the present invention is installed in a vehicle, and a door opening warning method is implemented. The vehicle includes a warning device 10, a brake and gear detection device, a central locking device, an electric control module, a controller area network, and a door 20. In this example, the vehicle is described with a general passenger car. The warning device 10 includes a left side headlight 101, a right side headlight 102, a left side headlight 103, a right side taillight 104, a left front side light 105, a left rear side light 106, and a right front side light 107, and One right rear side turn signal 108. The door 20 includes a left front door 201, a left rear door 202, a right front door 203, and a right rear door 204. The door opening warning device includes a vehicle stop detection unit 1, a car lock detection unit 2, two photographic detection modules 3, a door sensor 4, and a control unit 5.

The vehicle stop detection unit 1 is built in the brake and gear detection device, and detects whether the vehicle is in a stopped state. The stopped state of the vehicle is, for example, a brake or an engine stall, as long as the vehicle is not started. Condition. A stop signal is generated when the vehicle stop detection unit 1 detects that the vehicle is in a stopped state. On the contrary, when the vehicle stop detection unit 1 detects that the vehicle is in a start state, a start signal is generated.

The car lock detection unit 2 is built in the central control lock device, and detects whether the door 20 of the vehicle is locked. When the door 20 is locked, people outside cannot open the door. The detecting unit 2 generates an unlock signal when it detects that any door 20 of the vehicle is unlocked. Conversely, when the vehicle lock detection unit 2 detects that all the doors 20 of the vehicle are locked, a lock signal is generated.

The photographic detection modules 3 are combined with the left headlight 101 and the right headlight 102 into two adaptive headlights respectively. The photographic detection modules 3 are controlled to photograph and detect whether there is a target object in front of the vehicle. When approaching, when one of the camera detection modules 3 detects the target object at a safe distance in front, a corresponding warning signal is generated respectively.

The door sensor 4 is built in the central control lock device and detects whether the door 20 is opened. When the door sensor 4 detects that the left front door 201 is opened and / or the left rear door 202 is opened, An open signal is generated indicating that the left front door 201 is opened and / or the left rear door 202 is opened. When the door sensor 4 detects that the right front door 203 is open and / or the right rear door 204 is open, it generates the open signal indicating that the right front door 203 is open and / or the right rear door 204 is open. Conversely, when the door sensor 4 detects that the left front door 201 is closed and / or the left rear door 202 is closed, it generates a close indicating that the left front door 201 is closed and / or the left rear door 202 is closed. Signal. When the door sensor 4 detects that the right front door 203 is closed and / or the right rear door 204 is closed, it generates the closing signal indicating that the right front door 203 is closed and / or the right rear door 204 is closed.

The control unit 5 is electrically connected to the vehicle stop detection unit 1, the car lock detection unit 2, the photographic detection modules 3, the door sensor 4, and the warning device 10. The control unit 5 is built in the electric control module. The control unit 5 communicates with the vehicle stop detection unit 1, the car lock detection unit 2, the photographic detection module 3, The door sensor 4 is connected to the warning device 10 and a signal is transmitted. It should be noted that the door opening warning device in this case can be completely built into the vehicle's existing intelligent electronic equipment, which can achieve the function of door opening warning without increasing costs, and also allow the door opening warning in this case. Device promotion is easier.

The door opening warning device implements the door opening warning method. The steps of the door opening warning method are described below. In this example, steps S1 to S13 are used for description.

In step S1, it is also a step to detect the stop of the vehicle. The vehicle stop detection unit 1 is used to detect whether the vehicle is stopped. If the vehicle is detected to be in a non-stop state, skip to step S2. If the vehicle is stopped, skip to step S3.

Step S2 is also the vehicle startup step. When the vehicle stop detection unit 1 detects that the vehicle is in the start state, the start signal is generated, and the control unit 5 stops the operation when receiving the start signal.

In step S3, the vehicle stop step and the door lock detection step are also performed. When the vehicle stop detection unit 1 detects that the vehicle is stopped, the stop signal is generated, and the vehicle lock detection unit 2 is used to detect the Whether the vehicle door 20 is locked. If it is detected that the vehicle door 20 is locked, skip to step S4. If it is detected that the vehicle door 20 is unlocked, skip to step S5.

Step S4 is also a door locking step. When the door sensor 4 detects that the doors 20 of the vehicle are locked, the lock signal is generated, and the control unit 5 stops operating according to the lock signal.

In step S5, which is also the first stage warning output step, the control unit 5 receives the stop signal and the unlocked signal, and the warning device 10 controlling the vehicle generates a first stage warning output. In this example, the The first stage warning output is the left front side light 105, the left rear side light 106, the right front side light 107, and the right rear side light 108. As shown in the third figure, the vehicle When you come to the front and rear of the car to see the first-stage warning output, you can be alerted that the vehicle may open the door. After step S5, you can jump directly to step S6, or step S8, or step S12.

In step S6, it is also a step of detecting a vehicle coming in front, and using these camera detection modules 3 to photograph and detect whether the target object is approaching in front of the vehicle. The target object may be a vehicle, a locomotive, or a pedestrian. If it is detected that the target object is not approaching in front of the vehicle, repeat step S6. If it is detected that the target object is approaching in front of the vehicle, skip to step S7.

In step S7, which is also the second stage warning output step, when the photographic detection modules 3 detect that the safe distance in front of the vehicle has the target object, the warning signal in front is generated, and the control The control unit 5 receives the forward warning signals and controls the warning device 10 to generate a second-stage warning output. In this example, the second-stage warning output generates low-illumination light emission for the left headlight 101 and the right headlight 102. As shown in the fourth figure, when the vehicle comes in front of the vehicle and sees the second-stage warning output, it can further alert that the vehicle may open the door. Repeat step S6 after step S7.

In step S8, the door opening detection step is also performed, and the door sensor 4 is used to detect whether the door 20 is opened. If it is detected that the door 20 is not opened, repeat step S8. If it is detected that the door 20 is open, skip to step S9.

In step S9, which is also the third stage warning output step, when the door sensor 4 detects that the left front door 201 and / or the left rear door 202 is open, it generates an instruction to the left front door 201 and / or the left rear The opening signal of the side door 202 being opened, the control unit 5 receives the opening signal and controls the left side headlight 101 and the left side taillight 103 to generate a flashing light for a third stage warning output. When the door sensor 4 detects the When the right front door 203 and / or the right rear door 204 is opened, an opening signal indicating that the right front door 203 and / or the right rear door 204 is open is generated. The control unit 5 receives the open signal and controls the right headlight 102. And the right tail light 104 generates the third-stage warning output of flashing light. As shown in the fifth figure, when the vehicle comes in front of and behind the vehicle and sees the third-stage warning output, it can further alert that the door 20 on one side of the vehicle has opened the door. After step S9, skip to step S10.

In step S10, the door opening step is detected again, and the door sensor 4 is used to detect whether the door 20 is still opened. If it is detected that the door 20 is not opened (already closed), go to step S11. If it is detected that the door 20 is still open, repeat step S9.

Step S11 is also the door closing step. When the door sensor 4 detects that the left front door 201 and / or the left rear door 202 is closed, an instruction is generated to indicate that the left front door 201 and / or the left rear door 202 is closed. The shutdown signal, the control unit 5 receives the shutdown signal and stops controlling the left head The lights 101 and the left tail light 103 generate the third-stage warning output which flashes and emits light. When the door sensor 4 detects that the right front door 203 and / or the right rear door 204 is closed, it generates an instruction to the right front door 203 And / or the closing signal of the right rear door 204 being closed, the control unit 5 receives the closing signal and stops controlling the right-side headlight 102 and the right-side taillight 104 to generate the third-stage warning output that flashes.

In step S12, the door lock step is detected again, and the vehicle lock detection unit 2 is used to detect whether the door 20 of the vehicle is locked. If it is detected that the vehicle door 20 is locked, skip to step S13. If it is detected that the vehicle door 20 is unlocked, skip to step S5 repeatedly.

Step S13 is also a door locking step. When the vehicle lock detection unit 2 detects that the vehicle door 20 is locked, the lock signal is generated, and the control unit 5 stops operating according to the lock signal.

In summary, by using the vehicle stop detection unit 1 and the lock detection unit 2 to detect the state of the vehicle, to determine whether a state of opening the door 20 will occur, and when it is determined that a state of opening the door 20 may occur, The control unit 5 controls the warning device 10 to issue the first-stage warning output to remind the front and rear of the vehicle to come. Furthermore, the camera detection module 3 is used to strengthen the detection of the situation in front, and the control unit 5 controls The warning device 10 issues the second-stage warning output, which further achieves the effect of warning the vehicle coming in front of the vehicle. The door sensor 4 detects the door 20, and when the door 20 is opened, the control unit 5 controls the door 20 The warning device 10 issues the third-stage warning output, which further achieves the effect of warning the vehicle to come in front of and behind the vehicle. More preferably, the door opening warning device can be completely built into the vehicle's existing intelligent electronic equipment. The door opening warning function can be achieved without increasing the cost, and the promotion of the door opening warning device in this case is easier, so the object of the present invention can be achieved.

Based on the description of the above embodiments, the operation, use, and effects of the present invention can be fully understood, but the above-mentioned embodiments are only preferred embodiments of the present invention. It is within the scope of the present invention to limit the scope of implementation of the present invention, that is, simple equivalent changes and modifications made according to the scope of the patent application and the description of the invention.

Claims (6)

A door opening warning device is suitable for being installed on a vehicle. The vehicle includes a warning device and a door. The warning device includes a left headlight, a right headlight, a left taillight, a right taillight, and a front left direction. Lights, a left rear side direction light, a right front side direction light and a right rear side direction light. The door includes a left side door and a right side door. The door opening warning device includes a vehicle stop detection unit to detect the Whether the vehicle is stopped, a stop signal is generated when it is detected that the vehicle is stopped; a lock detection unit detects whether the door of the vehicle is locked, and when it is detected that the door of the vehicle is unlocked An unlocked signal is generated at a time; a photographic detection module is controlled to photograph and detect whether a target object is approaching in front of the vehicle, and a front warning signal is generated when it is detected that the target object is at a safe distance in front; and A control unit is electrically connected to the vehicle stop detection unit, the car lock detection unit, the photographic detection module and the warning device, and when the control unit receives the stop signal And the unlocked signal, the control unit controls the warning device to generate a first-stage warning output, and the first-stage warning output is the left front side direction light, the left rear side direction light, the right front side direction light and the The right rear direction indicator flashes to warn the vehicle to come in front and back. At the same time, the control unit controls the camera detection module to start. When the warning device generates the first-stage warning output, and the control unit receives When the front warning signal is sent, the control unit controls the warning device to generate a second-stage warning output, and the second-stage warning output is that the left headlight and the right headlight generate low-illuminance light to warn the vehicle ahead; A door sensor that detects whether the door is open, generates an open signal when the door is detected to be open, generates a first-stage warning output when the warning device generates the warning signal, and the control unit receives the open signal , The control unit controls the warning device to generate a third-stage warning output to warn the vehicle to come in front and behind; when the door sensor When the left door is detected to be opened, the open signal indicating that the left door is open is generated, and when the control unit receives the open signal that indicates the left door is opened, the control unit controls the left headlight and the left taillight to generate flashing light The third-stage warning output is generated when the door sensor detects that the right door is open, and generates the opening signal indicating that the right door is open. When the control unit receives the opening signal indicating that the right door is open, the control The unit controls the right-side headlight and the right-side taillight to generate the third-stage warning output that flashes and emits light. The door opening warning device described in the first patent application scope, wherein after the warning device generates the third-stage warning output, the door sensor detects whether the door is open, and when the door sensor detects the door opening, When the left door is closed, a closing signal indicating that the left door is closed is generated. The control unit receives the closing signal to stop controlling the left headlight and the left taillight to generate the flashing light of the third stage warning output. When the door sensor detects When the right door is closed, the closing signal indicating that the right door is closed is generated, and the control unit receives the closing signal to stop controlling the right headlight and the right taillight to generate the third-stage warning output that flashes and emits light. The door opening warning device according to item 1 of the scope of patent application, wherein the lock detection unit generates a lock signal when it detects that the door of the vehicle is locked, and the control unit stops when it receives the lock signal Act. The door opening warning device according to item 1 of the scope of patent application, wherein the vehicle also includes a brake and gear detection device, a central control lock device, an electronic control module, and a controller area network, The warning device includes a headlight, the vehicle stop detection unit is built in the brake and gear detection device, the car lock detection unit is built in the central lock device, the photographic detection module and the headlight Combined into an adaptive headlight, the control unit is built into the electric control module. The control unit and the vehicle stop detection unit, the car lock detection unit, and the photographic detection module are connected through the controller area network. Group link. For example, the door opening warning device described in item 1 of the patent application scope, wherein the vehicle further includes a central control lock device, an electric control module, and a controller area network. The door sensor is built in the vehicle. Lock control device, the control unit is built in the electric control module, and the control unit is connected to the door sensor through the controller area network. A door opening warning method includes: detecting a vehicle stop step: using a vehicle stop detection unit of the door opening warning device to detect whether the vehicle is stopped; a vehicle stop step: detecting when the vehicle stop detection unit detects A stop signal is generated when the vehicle is in a stopped state; detecting the door lock step: using a door lock detection unit of the door opening warning device to detect whether the door of the vehicle is locked; the door unlocked step: when the door is unlocked The car lock detection unit detects an unlocked signal when the door of the vehicle is unlocked; the first stage warning output step: use a control unit of the door opening warning device to receive the stop signal and the unlocked signal And a warning device controlling the vehicle generates a first-stage warning output, the first-stage warning output is one of the left front side direction light, a left rear side direction light, a right front side direction light and a right rear side The direction light generates a flashing light to warn the vehicle coming in front and behind. Detecting the vehicle coming in front: Use the door to open a camera detection mode of the warning device. Photograph and detect whether a target object is approaching in front of the vehicle; and the second stage warning output step: when the camera detection module detects the target object at a safe distance in front of the vehicle, a front warning signal is generated, the control The unit receives the warning signal in front and controls the warning device to generate a second-stage warning output. The second-stage warning output is a low-light emission of one of the left headlight and one right headlight of the vehicle to warn the vehicle ahead. Car; detecting the door opening step: it is to use a door sensor of the door opening warning device to detect whether the door is open; the third stage warning output step: when the door sensor detects that the door is open, an opening is generated Signal, the control unit receives the opening signal and controls the warning device to generate a third-stage warning output to warn the vehicle to come in front of and behind the vehicle, and an instruction is generated when the door sensor detects that one of the left doors of the vehicle is open The opening signal of the left door opening, the control unit receives the opening signal and controls the left head of the vehicle And a third stage warning output with a left tail light flashing, when the door sensor detects that the right door is open, it generates the open signal indicating that the right door is open, and the control unit receives the open signal and controls the vehicle The right-side headlight and a right-side taillight produce the third-stage warning output that flashes.