CN103818309B - A kind of vehicle warning device and the instant alarming method for power of accident - Google Patents

Abstract

The first aspect of the present invention provides a vehicle warning device, which includes a vehicle collision detection unit, the vehicle collision detection unit is connected to a control unit, the control unit is connected to a pop-up device, and the control unit is also connected to an audible and visual alarm device. The control unit is connected with a power supply, the control unit is connected with a control button, and the control unit is connected with a reset button. The second aspect of the present invention provides an instant warning method for accidents, which includes a. The inertial sensor of the vehicle detects the vehicle collision signal, and compares the value of the collision signal with the set value; b. The control unit controls the pop-up of the warning sign; steps a and b are executed in sequence, and the warning sign pops up. The installation position of the vehicle warning device and the instant warning method for accidents provided by the present invention is on the top of the vehicle, which is easier to be found by distant vehicles; and the warning device in the warning method does not need to be manually assembled and placed, and can be popped up by itself when needed, and can be removed when not in use. Take it back on your own.

Description

Vehicle warning device and accident instant warning method

technical field

The invention relates to a vehicle warning device and a warning method, in particular to a pop-up vehicle warning device.

Background technique

In recent years, there have been frequent accidents of secondary collisions caused by faulty vehicles not placing warning signs in time. These accidents can increase the injuries of people in the vehicles, and cause casualties and economic losses in severe cases. At present, most of the car warning signs we use are foldable. They are usually folded and placed in the car. When encountering a traffic accident or car failure, they are manually taken out and opened into a triangle and placed on the ground at a certain distance behind the car. Play a safety warning role for passing vehicles to avoid collisions. But there is following shortcoming in this safety warning method: 1, because warning sign area is less and is placed on the ground, cause target not conspicuous, can not find and slow down in time for the vehicle of high-speed running, just finds when often very close to accident vehicle; 2. For the users, there are certain safety hazards in the placement of safety signs, especially on expressways, where they may be injured during the placement process; 3. In some serious traffic accidents, people in the car may be injured and lost Mobility, unable to walk on their own to place warning signs.

The Chinese utility model patent with the application number of 93210034.1 discloses a car anti-rear collision and reversing anti-obstacle warning device, which includes a display warning circuit and a host, and uses the principle of ultrasonic transmission-reception to send flashing signals or red light and white light on the display screen. This effectively reminds the driver of the car behind to prevent rear-end collisions. This warning device is easy to install, but it cannot automatically pop up when the vehicle breaks down, and the font displayed on the display screen is not easy to see clearly in the distance, which may easily cause the driver of the car behind to misunderstand. As shown in accompanying drawing 1 and accompanying drawing 2.

Contents of the invention

The first aspect of the present invention provides a vehicle warning device, which includes a vehicle collision detection unit, the vehicle collision detection unit is connected to a control unit, the control unit is connected to a pop-up device, and the control unit is also connected to an audible and visual alarm device. The control unit is connected with a power supply, the control unit is connected with a control button, and the control unit is also connected with a reset button.

Preferably, the pop-up device includes a support rod.

Preferably, one end of the support rod is connected to the warning sign, and the other end of the support rod is a free end.

Preferably, the bottom end of the warning sign is connected to the top of the vehicle, and the top of the warning sign is connected to one end of the support rod.

Preferably, the bottom end of the warning sign is parallel to the direction of the wheel axle of the vehicle.

Preferably, the other end of the support rod is embedded in a guide groove installed on the roof of the vehicle.

Preferably, the other end of the support rod linearly moves in the guide groove.

Preferably, the other end of the support rod is connected to a drive mechanism, the drive mechanism includes a drive motor and a transmission shaft, and the drive motor transmits power to the other end of the support rod through the transmission shaft, so as to drive the other end of the support rod It moves in the guide groove, so that the top of the warning sign moves with one end of the support rod, so that the warning sign is in the state of bouncing up or putting down.

Preferably, the drive motor is a separately excited DC motor.

Preferably, limit switches are provided at both ends of the guide groove, and the limit switch restricts the movement track of the other end of the support rod in the guide groove.

Preferably, the guide groove is arranged along the traveling direction of the vehicle body. When the other end of the support rod is located at the limit switch at the front end of the guide groove, the warning sign is in a flat state, indicating that the vehicle is in normal condition; When the other end of the rod is located at any part of the middle part of the guide groove and the rear end, the warning sign is in a pop-up state, which can play a warning role to the rear car at this moment.

Preferably, the control button is installed on the instrument panel inside the vehicle, and the function of the control button is as a manual control link of the warning device. When the vehicle breaks down or an accident needs to be warned, the personnel in the car manually press the control button button, the signal of the control button is transmitted to the control unit, the control unit controls the pop-up of the warning sign, and at the same time the control unit connects the sound and light alarm circuit, so that the sound and light alarm device emits light and sounds for sound and light alarm; when the fault is eliminated, press The reset button is activated, and the reset signal of the reset button is transmitted to the control unit, so that the warning device is retracted.

Preferably, the vehicle warning device has two control modes, automatic and manual, and can be manually operated in the vehicle in case of a general failure, and the device will automatically pop up when the impact is severe.

Preferably, the control buttons are installed on the dashboard in front of the driver inside the vehicle.

Preferably, the vehicle collision detection unit includes an inertial sensor, the inertial sensor detects and judges the impact signal when the vehicle collides, and transmits the impact signal to the control unit, and the control unit analyzes whether the impact signal is greater than a preset If the value exceeds the preset value, the vehicle warning device will be triggered to pop up, and at the same time, the vehicle warning device can send out sound and light signals for sound and light alarm, which is the automatic activation principle of the vehicle warning device.

More preferably, the preset value in the control unit can be preset, and different preset values can be set according to different safety level requirements or weather conditions and road conditions.

Preferably, the control unit includes a control button contact, the control button contact is also connected in parallel with a contact of an inertial sensor, the inertial sensor contact is connected to an intermediate relay, the intermediate relay is connected to a contactor, and the contactor is connected to a limit Switches and fuses, the function of the control unit is to receive the input information of the manual control button or inertial sensor in the car, and carry out logic operations through the control circuit, and then determine the action of the relay and contactor, so as to complete the pop-up of the warning sign and take back.

Preferably, the control button of the control unit is a resettable button.

Preferably, the control circuit of the control unit includes an excitation circuit, an armature circuit and a control circuit.

Preferably, the excitation circuit includes an excitation coil and a potentiometer, and the excitation circuit provides a working magnetic field for the separately excited DC motor.

Preferably, the excitation coil and the potentiometer in the excitation circuit are connected in series, the excitation coil is connected to the positive pole of the power supply, and the potentiometer is connected to the negative pole of the power supply.

Preferably, the armature circuit includes 2 forward contactor contacts, 2 reverse contactor contacts, armature winding I and armature winding II, 2 fuses FU, normally open self-locking contacts Closing helps the forward contactor coil to continue to be energized; the forward contactor is normally closed and the contacts of each other are disconnected to avoid short circuit caused by simultaneous connection of power supplies in different directions; the main contact of the forward contactor is closed so that the armature winding Ⅰ is connected to the positive stage of the power supply , Armature winding II is connected to the negative stage of the power supply.

Preferably, the armature circuit includes a parallel circuit, and the parallel circuit includes a circuit I and a circuit II, and the circuit I and the circuit II are connected in parallel to both ends of the power supply.

Preferably, the circuit I includes a forward contactor and a reverse contactor connected in series, and the forward contactor is connected to the positive pole of the power supply, and the reverse contactor is connected to the negative pole of the power supply.

Preferably, the circuit II includes a reverse contactor connected in series with a forward contactor, and the reverse contactor is connected in series with the fuse and connected to the positive pole of the power supply, and the forward contactor is connected in series with the fuse and connected to the negative pole of the power supply.

More preferably, the circuit I and the circuit II are also connected through the armature winding I and the armature winding II of the motor, and the armature winding I and the armature winding II are connected to the positive direction of the circuit I and the circuit II respectively. Circuit between contactor and reversing contactor.

Preferably, when a short circuit occurs or a locked rotor or a severe overload occurs, the fuse is blown to protect the motor.

Preferably, the control circuit includes a manual start button, a rear limit switch, a front limit switch reverse contactor, a forward contactor, a collision sensor, a manual reset button, an intermediate relay, a warning light and a buzzer.

Preferably, the control loop includes a parallel circuit, the parallel circuit includes circuit III, circuit IV and circuit V, and the circuit III, circuit IV and circuit V are connected in parallel to both ends of the power supply.

Preferably, in the circuit III, the manual start button SB1, the rear limit switch SQ1, the forward contactor KM1 and the reverse contactor KM2 are connected in series.

More preferably, in the circuit III, the manual start button SB1 is connected in parallel with the collision sensor G, and then connected in parallel with the forward contactor KM1.

Preferably, in the circuit IV, the manual reset button SB2, the front limit switch SQ2, the forward contactor KM1 and the reverse contactor KM2 are connected in series.

More preferably, in the circuit IV, the manual reset button SB2 is connected in parallel with the reverse contactor KM2.

Preferably, the forward contactor KM1, the reverse contactor KM2 and the intermediate relay KA in the circuit V are connected in series.

More preferably, in the circuit IV, the forward contactor KM1 is connected in parallel with the intermediate relay KA.

More preferably, in the circuit IV, the intermediate relay KA is connected in parallel with the warning light L and then connected in parallel with the buzzer BL.

More preferably, the circuit III, circuit IV and circuit V are connected in parallel, and then one end is connected to the circuit between the reverse contactor and the fuse in the circuit II, and the other end is connected to the forward contactor in the circuit II circuit with the fuse.

Preferably, the warning sign includes a panel and a bottom plate.

Preferably, the panel and the bottom plate of the warning sign are detachably connected together.

Preferably, an illuminating lamp is installed between the panel and the bottom plate of the warning sign, and the illuminating lamp is a red illuminating lamp.

Preferably, a loudspeaker is installed between the front panel and the bottom plate of the warning sign.

Preferably, the warning sign is triangular in shape.

Preferably, the shape of the warning sign is an equilateral triangle.

Preferably, the shape of the warning sign is an isosceles triangle.

Preferably, the top end of the triangular warning sign is connected to one end of the support rod, and the bottom end of the triangular warning sign is connected to the roof of the vehicle.

Preferably, the material of the warning sign is waterproof material.

Preferably, the material of the warning sign is fluorescent material.

The working mode of the vehicle warning device provided by the first aspect of the present invention is: the inertial sensor in the vehicle collision detection unit detects the vehicle collision signal, if the collision speed reaches the set value, the inertial sensor outputs the collision signal to the control unit, the control The drive motor in the unit drives the support rod to move, and the end of the support rod located in the guide groove of the roof moves from front to rear to the limit position of the rear end of the guide groove, so that the warning sign is supported, and the sound and light alarm device also starts to work at the same time. The sound and light signal can produce a strong warning effect on the vehicle behind; when the accident is resolved and there is no need to warn the passing vehicles, manually press the reset button, and the support rod will move from back to front under the action of the drive motor until it reaches the front of the guide groove. The limit position, so that the warning sign can be placed flat, without affecting the normal driving of the vehicle.

If the collision of the vehicle is not serious and the collision force does not reach the set value, but it is necessary to stop the car to deal with the fault or in case of danger, the control button can be manually pressed, and the control unit receives the signal of the control button, and the control unit controls the drive. The motor rotates, and the transmission shaft transmits the power to the support rod. The support rod moves linearly from front to back along the guide groove until it reaches the limit position behind the guide groove. At this time, the support rod supports the warning sign. At the same time, the control unit controls the sound The light alarm device sends out an audible and visual warning signal; if the alarm needs to be canceled, press the reset button, the warning sign stops the sound and light alarm, and triggers the drive motor to reverse, and drives the warning sign support rod to move forward along the guide groove through the transmission shaft until The motor stops at the limit position, and the warning sign returns to the flat state.

More operations are known to those skilled in the art and will not be repeated here.

The technical solution of the vehicle warning device provided by the first aspect of the present invention includes any combination of the above-mentioned parts, and the simple changes or combinations of the above-mentioned parts and components are still within the protection scope of the present invention.

The vehicle warning device provided by the first aspect of the present invention is installed on the top of the vehicle, which is easier to be found by distant vehicles; the device uses sound and light to prompt, which is more effective than traditional warning signs, and is especially suitable for night or rain Occasions in snow and haze weather; the device does not need to be assembled and placed manually, it can pop up when needed, and can be retracted when not in use, which is convenient to use; The inner control button manually controls the pop-up and recovery of the device, avoiding personal danger caused by leaving the car outside; in case of a serious impact, the warning device can pop up automatically without manual participation, and quickly give a safety warning. The vehicle warning device described in the first aspect of the present invention can effectively protect the personal safety of the passengers, and at the same time, it has an obvious warning effect on the vehicles behind, its warning degree is high, and it is easy to be identified. OK, less congestion.

The second aspect of the present invention also provides a method for instant warning of accidents, which includes the following steps:

a. The inertial sensor of the vehicle detects the vehicle collision signal, and compares the value of the collision signal with the set collision speed value;

b. When the value of the collision signal exceeds the set value, the inertial sensor will output the collision signal to the control unit, and the control unit will control the pop-up of the warning sign;

c. If it is necessary to support the warning sign, in manual operation, press the control button, and the control unit will pop up the warning sign;

d. Manually press the reset button to retract the warning sign.

Preferably, steps a and b are executed sequentially, and the warning sign pops up.

Preferably, when the warning needs to be cancelled, step d is executed, and the warning sign is retracted.

Preferably, when the collision is not serious and the collision signal is not obvious but the vehicle behind needs to be warned, step c is performed to manually pop up the warning sign.

Preferably, the set collision speed value is 25 km/h, and when the value of the signal converted from the vehicle collision is lower than the set collision speed value, the control unit does not perform the pop-up operation.

Preferably, the control unit and the warning sign are the control unit and the warning sign described in the first aspect of the present invention.

The advantage of the instant warning method for accidents provided by the second aspect of the present invention is that it does not require manual assembly and placement, can bounce up when needed, and can be retracted when not in use, which is convenient to use and beneficial to personal safety, and can quickly give a safety warning when needed , the warning effect on the car behind is obvious and easy to be identified.

Description of drawings

Fig. 1 and Fig. 2 are the structure diagram and installation diagram of a car anti-rear-collision and reversing anti-obstacle warning device of the utility model patent whose application number is 93210034.1;

Fig. 3 is a working principle diagram of a preferred embodiment of the vehicle warning device of the present invention;

Fig. 4 is a component connection diagram of the embodiment shown in Fig. 3;

Fig. 5 is a device schematic diagram of the embodiment shown in Fig. 3 in a non-working state;

Fig. 6 is a device schematic view of the embodiment shown in Fig. 5 in working state;

Fig. 7 is a schematic structural view of the embodiment shown in Fig. 5;

Fig. 8 is the electrical schematic diagram of the embodiment shown in Fig. 7:

The marks in Figure 3-8 represent:

1 guide groove 2 support rod 3 warning sign

SB1 manual start button SB2 manual reset button SQ1 rear limit switch

SQ2 front limit switch KA intermediate relay KM1 positive contactor

KM2 reverse contactor G collision sensor L warning light BL buzzer

FU fuse M motor RC potentiometer.

detailed description

In order to better understand the present invention, preferred embodiments of the vehicle warning device according to the present invention will be described in detail below in conjunction with the accompanying drawings.

Embodiment 1.1 , Fig. 3-Fig. 5 are respectively the working principle diagram, component connection diagram, non-working state device schematic diagram of a preferred embodiment of the vehicle warning device of the present invention; Fig. 6 is that the embodiment shown in Fig. 5 is working state; Fig. 7 is a schematic structural view of the embodiment shown in Fig. 5; Fig. 8 is an electrical schematic diagram of the embodiment shown in Fig. 7, the vehicle warning device provided in this embodiment includes a vehicle collision detection unit, the vehicle collision The detection unit is connected with the control unit, the control unit is connected with the pop-up device, the control unit is also connected with the sound and light alarm device, the control unit is connected with the power supply, the control unit is connected with the control button, and the control unit is connected with the reset button.

In this embodiment, the pop-up device includes a support rod 2 .

In this embodiment, one end of the support rod 2 is connected to the warning sign 3, and the other end of the support rod 2 is a free end.

In this embodiment, the bottom end of the warning sign 3 is connected to the top of the vehicle, and the top of the warning sign 3 is connected to one end of the support rod 2 .

In this embodiment, the bottom end of the warning sign 3 is parallel to the direction of the wheel axle of the vehicle.

In this embodiment, the other end of the support rod 2 is embedded in the guide groove 1, and the guide groove 1 is installed on the roof of the vehicle.

In this embodiment, the other end of the support rod 2 linearly moves in the guide groove 1 .

In this embodiment, the other end of the support rod 2 is connected to a drive mechanism, the drive mechanism includes a drive motor and a transmission shaft, and the drive motor transmits power to the other end of the support rod 2 through the transmission shaft, so as to drive the support rod 2 The other end moves in the guide groove 1, so that the top of the warning sign 3 moves with one end of the support rod 2, so that the warning sign 3 is in the state of bouncing up or putting down.

In this embodiment, the drive motor is a separately excited DC motor.

In this embodiment, the front limit switch SQ2 is installed on the front end of the guide groove 1 in the driving direction of the vehicle, and the rear limit switch SQ1 is installed on the rear end of the guide groove 1 in the driving direction of the vehicle. The front limit switch SQ2 and the rear limit switch The switch SQ1 limits the movement trajectory of the other end of the support rod 2 within the guide groove 1 .

In this embodiment, the guide groove 1 is arranged along the traveling direction of the vehicle body. When the other end of the support rod 2 is located at the front limit switch SQ2 at the front end of the guide groove 1, the warning sign 3 is in a flat state, and the vehicle is in normal condition; When the other end of the rod 2 is located at any part of the middle part and the rear end of the guide groove 1, the warning sign 3 is in a pop-up state, which can play a warning role to the rear vehicle at this moment. In the electrical schematic diagram shown in Fig. 8, when the other end of the support rod 2 reaches the position of the limit switch SQ1 at the rear end of the guide groove 1, the motor stops, and the warning sign is fully erected at this time.

In this embodiment, the control button is installed on the instrument panel inside the vehicle. The function of the control button is as a manual control link of the warning device. Control button, the signal of the control button is transmitted to the control unit, the control unit controls the warning sign 3 to pop up, and at the same time the control unit connects the sound and light alarm circuit, so that the sound and light alarm device emits light and sounds for sound and light alarm; when the fault is eliminated , press the reset button, the reset signal of the reset button is transmitted to the control unit, so that the warning device is retracted.

In this embodiment, the control buttons are installed on the dashboard in front of the driver inside the vehicle.

In this embodiment, the vehicle collision detection unit includes an inertial sensor, the inertial sensor detects and judges the impact signal when the vehicle collides, and transmits the impact signal to the control unit, and the control unit analyzes whether the impact signal is greater than the expected The set value is 25km/h, if it exceeds 25km/h, the vehicle warning device will be triggered to pop up, and at the same time, the vehicle warning device can send out sound and light signals for sound and light alarm, which is the automatic start principle of the vehicle warning device .

Preferably in this embodiment, the preset value in the control unit can be preset.

In this embodiment, the contactors include a forward contactor KM1 and a reverse contactor KM2.

In this embodiment, the control unit includes a control button contact and a collision sensor contact, the control button contact is connected to an intermediate relay KA, and the intermediate relay KA is connected in parallel with the forward contactor KM1, and the forward contactor is connected to the front, Rear limit switch and fuse, the function of the control unit is to receive the input information of the manual control button or inertial sensor in the car, and carry out logical operation through the control circuit, and then determine the action of the relay and contactor, so as to complete the warning sign 3 pop up and retract.

In this embodiment, the manual control button is a resettable button.

In this embodiment, the control circuit of the control unit includes an excitation circuit, an armature circuit and a control circuit.

In this embodiment, the excitation circuit includes excitation coils F1, F2 and a potentiometer RC, and the excitation circuit provides a working magnetic field for the separately excited DC motor.

Preferably, the excitation coil and the potentiometer in the excitation circuit are connected in series, the excitation coil is connected to the positive pole of the power supply, and the potentiometer is connected to the negative pole of the power supply.

In this embodiment, the armature circuit includes two forward contactor KM1 contacts, two reverse contactor KM2 contacts, armature winding IA1 and armature winding IIA2, two fuses FU, normally open automatically The closing of the lock contact helps the positive contactor KM1 coil to continue to be energized; the positive contactor KM1 is normally closed and the contacts of each other are broken to avoid short circuit caused by simultaneous connection of power supplies in different directions; the main contact of the forward contactor KM1 is closed so that the armature winding ⅠA1 is connected to the positive stage of the power supply, and the armature winding ⅡA2 is connected to the negative stage of the power supply.

In this embodiment, the armature circuit includes a parallel circuit, and the parallel circuit includes a circuit I and a circuit II, and the circuit I and the circuit II are connected in parallel to both ends of the power supply.

In this embodiment, the circuit I includes a forward contactor and a reverse contactor connected in series, and the forward contactor is connected to the positive pole of the power supply, and the reverse contactor is connected to the negative pole of the power supply.

In this embodiment, the circuit II includes a reverse contactor connected in series with a forward contactor, and the reverse contactor is connected in series with the fuse and connected to the positive pole of the power supply, and the forward contactor is connected to the fuse Connect in series and to the negative pole of the power supply.

In this embodiment, preferably, the circuit I and the circuit II are also connected through the armature winding I and the armature winding II of the motor, and the armature winding I and the armature winding II are respectively connected to the circuit I and the circuit II The circuit between the forward contactor and the reverse contactor.

In this embodiment, when there is a short circuit or locked rotor or severe overload, the fuse is blown to protect the motor.

In this embodiment, the control loop includes a manual start button SB1, a rear limit switch SQ1, a front limit switch SQ2, a reverse contactor KM2, a forward contactor KM1, a collision sensor G, a manual reset button SB2, and an intermediate relay KA, warning light L, buzzer BL.

In this embodiment, the control loop includes a parallel circuit, and the parallel circuit includes circuit III, circuit IV and circuit V, and the circuit III, circuit IV and circuit V are connected in parallel to both ends of the power supply.

In this embodiment, the manual start button SB1, the rear limit switch SQ1, the forward contactor KM1 and the reverse contactor KM2 in the circuit III are connected in series.

In this embodiment, in the circuit III, the manual start button SB1 is connected in parallel with the collision sensor G, and then connected in parallel with the forward contactor KM1.

In this embodiment, the manual reset button SB2, the front limit switch SQ2, the forward contactor KM1 and the reverse contactor KM2 in the circuit IV are connected in series.

Preferably in this embodiment, in the circuit IV, the manual reset button SB2 is connected in parallel with the reverse contactor KM2.

In this embodiment, the forward contactor KM1, the reverse contactor KM2 and the intermediate relay KA in the circuit V are connected in series.

In this embodiment, preferably, in the circuit IV, the forward contactor KM1 is connected in parallel with the intermediate relay KA.

Preferably in this embodiment, in the circuit IV, the intermediate relay KA is connected in parallel with the warning light L and then connected in parallel with the buzzer BL.

Preferably in this embodiment, the circuit III, circuit IV and circuit V are connected in parallel, and then one end is connected to the circuit between the reverse contactor and the fuse in the circuit II, and the other end is connected to the positive circuit in the circuit II. To the circuit between the contactor and the fuse.

In this embodiment, the warning sign 3 includes a panel and a bottom plate.

In this embodiment, the front panel and the bottom plate of the warning sign 3 are detachably connected together.

In this embodiment, an illuminating lamp is installed between the panel and the bottom plate of the warning sign 3, and the illuminating lamp is a red illuminating lamp.

In this embodiment, a loudspeaker is installed between the panel and the bottom plate of the warning sign 3 .

In this embodiment, the warning sign 3 is triangular in shape.

In this embodiment, the top end of the triangular warning sign is connected to one end of the support rod 2 , and the bottom end of the triangular warning sign is connected to the roof of the vehicle.

In this embodiment, the material of the warning sign 3 is waterproof material.

Embodiment 1.2 , a vehicle warning device, is the same as Embodiment 1.1, except that the preset value of the collision signal is 30km/h.

Embodiment 1.3 , a vehicle warning device, is the same as Embodiment 1.1, except that the preset value of the collision signal is 35km/h.

Embodiment 1.4 , a vehicle warning device, is the same as Embodiment 1.1, except that the preset value of the collision signal is 40km/h.

Embodiment 1.5 , a vehicle warning device, is the same as Embodiment 1.1, except that the shape of the warning sign is a parallelogram.

Embodiment 1.6 , a vehicle warning device, is the same as Embodiment 1.1, except that the shape of the warning sign is pentagonal.

Embodiment 1.7 , a vehicle warning device, is the same as Embodiment 1.1, the difference is that the shape of the warning sign is a corrugated quadrilateral structure.

Embodiment 1.8 , a vehicle warning device, is the same as Embodiment 1.1, except that the shape of the warning sign 3 is an equilateral triangle.

Embodiment 1.9 , a vehicle warning device, is the same as Embodiment 1.1, except that the shape of the warning sign 3 is an isosceles triangle.

Embodiment 1.10 , a vehicle warning device, is the same as Embodiment 1.5, except that the material of the warning sign 3 is fluorescent material.

Embodiment 2.1, a kind of accident instant warning method, it comprises:

First, the inertial sensor of the vehicle detects the vehicle collision signal, and compares the value of the collision signal with the set value;

Second, if the value of the collision signal exceeds the set value, the inertial sensor will output the collision signal to the control unit, and the control unit will control the pop-up of the warning sign;

In this embodiment, the set value is 30km/h.

Embodiment 2.2, an instant warning method for accidents, is the same as Embodiment 2.1, except that the set value is 28km/h.

Embodiment 2.3, an instant warning method for accidents, is the same as Embodiment 2.1, except that the set value is 32km/h.

Embodiment 2.4, an instant warning method for accidents, is the same as Embodiment 2.1, except that the set value is 35km/h.

The working mode of the vehicle warning device provided by the above-mentioned embodiments is: the inertial sensor in the vehicle collision detection unit detects the vehicle collision signal, and if the value of the collision signal reaches a set value, the inertial sensor outputs the collision signal to the control unit, and the vehicle collision signal in the control unit The driving motor drives the support rod 2 to move, and the end of the support rod 2 located in the roof guide groove 1 moves from front to rear until the limit position of the rear end of the guide groove 1, so that the warning sign 3 is supported, and the sound and light alarm device also starts When the accident is handled and there is no need to warn passing vehicles, manually press the reset button, and the support rod 2 will move from back to front under the action of the drive motor until The limit position in front of the guide groove 1 enables the warning sign 3 to be laid flat without affecting the normal running of the vehicle.

If the collision of the vehicle is not serious and the collision force does not reach the set value, but it is necessary to stop the car to deal with the fault or in case of danger, the control button can be manually pressed, and the control unit receives the signal of the control button, and the control unit controls the drive. The motor rotates, and the power is transmitted to the support rod 2 by the transmission shaft, and the support rod 2 moves linearly from front to back along the guide groove 1 until it reaches the limit position behind the guide groove 1. At this time, the support rod 2 supports the warning sign 3, At the same time, the control unit controls the sound and light alarm device to send out the sound and light warning signal; if the alarm needs to be canceled, press the reset button, the warning sign 3 stops the sound and light alarm, and triggers the drive motor to reverse, and the warning sign 3 is driven by the transmission shaft to support the rod 2 Move forward along the guide groove 1 until the motor stops at the limit position, and the warning sign 3 returns to the flat state.

The control unit adopts a separately excited DC motor as the drive motor of the support rod 2, and performs forward and reverse control of the drive motor by changing the direction of the armature current. The excitation circuit includes an excitation coil F1F2 and a potentiometer RC, and the excitation circuit provides a working magnetic field for the drive motor. When the start button SB1 is pressed or there is an inertial sensor signal G, the coil of the positive contactor KM1 is energized, and all the contacts with the same name act, including: normally open self-locking contact KM1 is closed to help the KM1 coil to continue to be energized The normally closed mutual contact KM1 is disconnected to prevent the power supply in different directions from being connected at the same time to form a short circuit; the main contact KM1 is closed so that the armature winding A1 is connected to the positive terminal of the power supply, and A2 is connected to the negative terminal of the power supply to form a positive armature current. The rotation drives the support rod 2 to move, and the warning sign 3 pops up. SQ1 is a pop-up limit switch. When the warning device is fully popped up, the SQ1 contact is broken, the KM1 coil is de-energized, and the main contact is broken. The motor stops forward rotation; the mutual contact is closed to recover the warning sign 3 Prepare. The reverse process of the motor is similar to the forward process, triggered by the recovery button SB2, and terminated by the recovery limit switch SQ2.

The function of the fuse FU is to protect the motor when there is a short circuit, stalled rotor or severe overload. When the support rod 2 is working, the trigger alarm light is on and the loudspeaker sounds; when the support rod 2 is recovered, this part of the signal is cut off, the sound and light alarm is stopped, and the intermediate relay maintains the alarm state during the process of bouncing up and recovering the support rod 2.

More operations are known to those skilled in the art and will not be repeated here.

The technical solution of the vehicle warning device provided by the above embodiments includes any combination of the above-mentioned parts, and the simple changes or combinations of the above-mentioned parts and components are still within the protection scope of the present invention.

The vehicle warning device provided by the above embodiment is installed on the roof, which is easier to be found by distant vehicles; the device uses sound and light to prompt, which is more effective than the traditional warning sign 3, and is especially suitable for night or encountering rain and snow Occasions in foggy weather; the device does not need to be assembled and placed manually, it can pop up when needed, and can be retracted when not in use, which is convenient to use; the device supports manual and automatic control methods. The control button manually controls the pop-up and recovery of the device to avoid personal danger caused by going out of the car; in case of a serious impact, the warning device can pop up automatically without manual participation, and quickly give a safety warning. The vehicle warning device described in the first aspect of the present invention can effectively protect the personal safety of the passengers, and at the same time, it has an obvious warning effect on the vehicles behind, its warning degree is high, and it is easy to be identified. OK, less congestion.

Claims (21)

1. A vehicle warning device, comprising a vehicle collision detection unit, the vehicle collision detection unit is connected with a control unit, the control unit is connected with a pop-up device, the control unit is also connected with an audible and visual alarm device, and the control unit is connected with a power supply, It is characterized in that: the control unit is connected with a control button, the control unit is connected with a reset button, the pop-up device includes a support rod, one end of the support rod is connected with a warning sign, and the other end of the support rod is a free end, the other end of the support rod is embedded in the guide groove, and the guide groove is installed on the roof of the vehicle. 2. The vehicle warning device according to claim 1, wherein the bottom end of the warning sign is connected to the top of the vehicle, and the top of the warning sign is connected to one end of the support rod. 3. The vehicle warning device according to claim 2, wherein the bottom end of the warning sign is parallel to the direction of the wheel axle of the vehicle. 4. The vehicle warning device according to claim 3, characterized in that: the other end of the support rod is connected to a drive mechanism, the drive mechanism includes a drive motor and a drive shaft, and the drive motor transmits power to the support through the drive shaft the other end of the rod. 5. The warning device for vehicles according to claim 3, wherein limit switches are provided at both ends of the guide groove. 6. The vehicle warning device according to claim 5, characterized in that: the guide groove is arranged along the traveling direction of the vehicle body. 7. The vehicle warning device according to claim 1, characterized in that: the control button is installed on the instrument panel inside the vehicle. 8. The vehicle warning device according to claim 6, characterized in that: the vehicle collision detection unit includes an inertial sensor, the control button contact is also connected in parallel with a contact of the inertial sensor, and the inertial sensor contact is connected to the intermediate relay, The intermediate relay is connected to the contactor, which is connected to the limit switch and the fuse. 9. The vehicle warning device according to claim 8, characterized in that: the control circuit of the control unit comprises an excitation circuit, an armature circuit and a control circuit, the excitation circuit comprises an excitation coil and a potentiometer, and the armature The loop includes a parallel circuit including a circuit I and a circuit II connected in parallel to both ends of the power supply. 10. The vehicle warning device according to claim 9, wherein the armature circuit includes 2 forward contactor contacts, 2 reverse contactor contacts, armature winding I and armature winding II , 2 fuses (FU), the main contact of the positive contactor is closed so that the armature winding Ⅰ is connected to the positive stage of the power supply, and the armature winding Ⅱ is connected to the negative stage of the power supply. 11. The vehicle warning device according to claim 10, characterized in that: the control circuit includes a manual start button (SB1), a rear limit switch (SQ1), a front limit switch (SQ2), a reverse contactor ( KM2), positive contactor (KM1), collision sensor (G), manual reset button (SB2), intermediate relay (KA), warning light (L), buzzer (BL). 12. The vehicle warning device according to claim 11, characterized in that: said control loop comprises a parallel circuit, the parallel circuit comprises circuit III, circuit IV and circuit V, and the circuit III, circuit IV and circuit V are connected in parallel to the power supply ends. 13. The vehicle warning device according to claim 12, wherein the warning sign comprises a panel and a bottom plate, and the front panel and the bottom plate of the warning sign are detachably connected together. 14. The vehicle warning device according to claim 13, characterized in that: an illuminating light is installed between the front panel and the bottom plate of the warning sign, and the illuminating light is a red illuminating light. 15. The vehicle warning device according to claim 14, characterized in that: a speaker is installed between the front panel and the bottom plate of the warning sign. 16. The vehicle warning device according to claim 15, wherein the shape of the warning sign is a triangle. 17. The vehicle warning device according to claim 16, wherein the top end of the triangular warning sign is connected to one end of the support rod, and the bottom end of the triangular warning sign is connected to the top of the vehicle. 18. The vehicle warning device according to claim 16, characterized in that: the material of the warning sign is waterproof material. 19. The vehicle warning device according to claim 16, characterized in that: the material of the warning sign is fluorescent material. 20. An instant warning method for an accident, comprising the following steps: a. The inertial sensor of the vehicle detects the vehicle collision signal, and compares the value of the collision signal with the set value; b. When the value of the collision signal exceeds the set value, the inertial sensor will output the collision signal to the control unit, and the control unit will control the pop-up of the warning sign; It is characterized in that: a, b are executed in sequence. 21. The accident instant warning method according to claim 20, characterized in that step d is performed to withdraw the warning sign.