CN102941826B - A kind of method and device guaranteeing power engineering vehicle driving safety - Google Patents

Abstract

A method and device for ensuring the driving safety of electric engineering vehicles belong to the field of electric engineering operation vehicles. It arranges a side-view camera on the right outer mirror housing of the vehicle, connects the video output signal of the side-view camera with the video output signal of the original reversing camera and connects it to the video signal input terminal of the navigator; The toggle switch is used to switch the power supply of the side view camera and the original reversing camera and display the trigger signal of the navigator. When the vehicle is in the reversing state, the two-position double switch is placed in the first position, and the navigator displays the image captured by the reversing camera; Display the image captured by the side view camera. It realizes the visualization of the external environment on the right side of the vehicle at the driver's position, eliminates the driver's visual blind spot during vehicle driving, and ensures the safety of electric engineering vehicles during driving.

Description

A method and device for ensuring driving safety of electric engineering vehicles

technical field

The invention belongs to the field of electric engineering operation vehicles, and in particular relates to a method and a device for eliminating blind spots in the driver's field of vision.

Background technique

In actual work, a lot of various electrical equipment are installed in places with complex working environment, no good road conditions or complicated ground conditions.

With the application and development of mechanized construction, more and more large-scale electric power engineering vehicles (including electric emergency vehicles) are used in daily power construction, patrol inspection or on-site equipment maintenance and repair work, which greatly improves the field outdoor construction and repair work. work efficiency.

At the same time, with the complexity and diversification of the working environment, various driving/driving accidents of electric engineering vehicles have also increased.

In order to ensure the driving safety of vehicles, various automobile manufacturers have adopted a variety of active safety and passive safety systems to maximize the driving safety performance of automobiles. Among these safety technologies, seat belts, airbags, safety head Pillow, anti-lock braking system, etc.; technologies that are currently in the stage of promotion and application or have been used on a large scale include electronic brake force distribution system, traction control system, electronic stability control system, blind spot information system, collision warning system, etc.

On some medium and high-end cars, it is equipped with a blind spot monitoring system. The so-called blind spot monitoring system is to use radar, camera and other devices to detect the blind spots on both sides of the vehicle when the vehicle is driving. If another vehicle enters the blind spot, it will prompt the driver in the rearview mirror or other designated positions to inform the driver. When is the best time to "merge" and greatly reduce the accidents caused by "merge".

For example, Volvo's BLIS (BlindSpotInformationSystem) blind spot information system is equipped with a camera under the two exterior rearview mirrors, which can monitor the area 9 meters behind the car and 3.5 meters wide on both sides. , a visual blind spot invisible from the inside rearview mirror and outside rearview mirror is called a blind spot. If there is a vehicle driving in the blind spot, it will pose a danger to the car's "lane change". The A-pillar of the vehicle (the front windshield and A red light on the pillar between the front doors) will flash and a buzzing alarm will alert the driver that "changing lanes" is dangerous.

However, due to manufacturing cost considerations, these active and passive safety technologies are usually equipped on some medium and high-end cars or off-road vehicles, and are rarely configured for on-site construction vehicles such as electric engineering vehicles.

Moreover, during the actual on-site driving operation, due to the existence of blind spots in the interior and exterior rearview mirrors, the driver is usually unable to observe the actual position of the front or side of the right front wheel of the vehicle (that is, the side of the right A-pillar). This brings great difficulty and inconvenience to the movement and driving of electric engineering vehicles in places with complex ground conditions, and also affects the safety, smooth and rapid progress of on-site construction operations.

If the above-mentioned blind spot information system is installed on the existing electric power engineering vehicle, firstly, the modification cost is relatively high, and it can only warn the blind spots in the middle and rear directions on both sides of the vehicle, which cannot solve the problem of visual field observation in front of the right side of the vehicle; The second is that this kind of modification often involves the modification of the original control circuit of the car, and the modification of the vehicle is also restricted by various regulations of the vehicle management department of the public security organ. The vehicle management functional department sets a high threshold for the modified car , How to make the refitting of the vehicle conform to the various regulations of the vehicle management department is also a difficult point in the actual vehicle equipment management.

How to help the driver observe the actual position in front of the right front wheel or side of the vehicle at the minimum cost under the conditions of various auxiliary driving devices (such as reversing radar, interior/exterior mirrors, etc.) equipped with existing vehicles It is an urgent problem to be solved in actual on-site work to make it possible to grasp the on-site ground conditions outside the vehicle (especially the front and side orientation of the right front wheel of the vehicle) as comprehensively as possible.

Contents of the invention

The technical problem to be solved by the present invention is to provide a method for ensuring the driving safety of electric engineering vehicles. Based on the existing auxiliary driving device, the driver can conveniently observe the actual ground in front of the right front wheel or on the side of the vehicle. It provides visual assistance for driving operations in narrow road meeting, parking on the side or complex ground conditions, brings great convenience to on-site power construction and repair/maintenance operations, and also helps to improve on-site work efficiency and Reduce driving time.

The present invention also provides a device for ensuring driving safety of electric engineering vehicles. Under the premise of not changing the control circuit of the original vehicle, within the scope permitted by relevant laws and regulations, the original vehicle can be utilized with the lowest modification cost and workload The advanced visual reversing radar navigator system realizes the visualization function of the vehicle's right side azimuth environment, which helps to improve the safety of electric power engineering vehicles during driving or moving.

The technical solution of the present invention is to provide a method for ensuring the driving safety of electric engineering vehicles, including the vehicle's original navigator with a reversing camera, wherein the reversing camera captures images of the surrounding environment at the rear of the vehicle and transmits them to In the navigator in the cab; it is characterized in that: a side-view camera is set on the housing of the right outside mirror of the vehicle, which is used to photograph the ground/environmental image in front of the A-pillar side on the right side of the vehicle; the side-view camera is The video output signal of the original reversing camera corresponds to the video output signal of the original reversing camera and is connected to the video signal input terminal of the navigator; a double-position double switch is set to switch the power supply of the side-view camera and the original reversing camera And the navigator displays the trigger signal; when the vehicle is in the reversing state, put the double-position double switch in the first switch position, the original reversing camera works normally, and the vehicle +12V power supply is provided to the navigation through the double-position double switch The instrument outputs a trigger signal, and the navigator displays the image captured by the reversing camera; when the vehicle is in a non-reversing state, the two-position double switch is placed in the second switch position, and the side-view camera is given Provide power, the side view camera works, the vehicle +12V power supply outputs a trigger signal to the navigator through the double-position double switch, and the navigator displays the image captured by the side view camera; without changing the control circuit of the original car , using the vehicle's original navigator with a visual reversing radar, an additional side-view camera and a double-position double switch to realize the visualization of the external environment on the right side of the vehicle at the driver's position, eliminating the need for The driver's visual blind spot ensures the safety of electric engineering vehicles during driving.

The two-position double switch described in it is arranged on the instrument panel or the console in the cab of the vehicle.

The side-view camera is installed under the back shell of the right exterior rear-view mirror of the vehicle, and the side-view camera is set at an angle of 30 to 45 degrees downward.

Specifically, the first terminal of the double-position double switch is connected to the trigger terminal of the reversing image of the navigator, the second terminal is connected to the vehicle +12V power supply terminal, and the third terminal and the fourth terminal are connected in parallel to the Connect the positive terminal of the power supply of the side-view camera, and connect the fifth terminal to the positive terminal of the power supply of the reversing camera; when the double-position double switch is in the first position, the reversing camera works, and the vehicle +12V power supply is sent from the fifth terminal to The first terminal is used to trigger the display of the navigator; when the double-position double switch is in the second position, the vehicle +12V power supply is from the second terminal to the fourth terminal to provide power for the side-view camera, because the fourth The terminal and the third terminal are directly connected, and the vehicle +12V power supply is sent from the third terminal to the first terminal for triggering the display of the navigator.

The present invention also provides a device for ensuring the driving safety of electric engineering vehicles by using the above method, including the vehicle's original navigator with a reversing camera, which is characterized in that: a side-view camera is set, and the side-view camera is set On the housing of the right outside mirror of the vehicle; after the video output signal of the side-view camera is connected with the video output signal of the original reversing camera, it is connected with the video signal input terminal of the navigator; a two-position The double switch is used to switch the power supply of the side view camera and the original reversing camera and the trigger signal of the navigator display; The reversing camera works normally, and the vehicle-mounted +12V power supply outputs a trigger signal to the navigator through a double-position double switch, and the navigator displays the image captured by the reversing camera; The double toggle switch is placed in the second switch position to provide power to the side-view camera, and the side-view camera works. The vehicle +12V power supply outputs a trigger signal to the navigator through the double-position double toggle switch, and the navigator displays the side-view The image captured by the camera.

After the video output signal line of its described side view camera is connected in parallel with the video output signal line of the reversing camera, it is connected with the AV-IN port of the navigator.

The video signal output terminal of the side-view camera and the AV-IN port of the navigator can be connected in a wired or wireless manner.

The two-position double switch is a two-position push-button switch or a double boat/rocker switch, and the side-view camera is an embedded clip-on camera.

The first terminal of the two-position double switch is connected to the trigger terminal of the reversing image of the navigator, the second terminal is connected to the vehicle +12V power supply terminal, and the third terminal and the fourth terminal are connected in parallel to the side view The positive end of the power supply of the camera is connected, and the fifth terminal is connected to the positive end of the power supply of the reversing camera; The second terminal and the sixth terminal are connected; when the double-position double switch is placed in the second position, the first terminal and the third terminal are connected, and the second terminal and the fourth terminal are connected. Pass.

Compared with prior art, the advantages of the present invention are:

1. Utilize the vehicle's original navigator with a reversing camera, without changing the control circuit of the original vehicle, with the lowest modification cost and workload, so that the driver can easily observe the front or side of the right front wheel of the vehicle The actual ground conditions in the azimuth are helpful to ensure the safety of electric engineering vehicles during driving;

2. Realize the multi-view observation effect of electric power engineering vehicles, provide visual assistance for driving operations in narrow lanes, parking by the side, or complex ground conditions, and bring great benefits to on-site electric power construction and repair/maintenance operations convenience;

3. The modified and added lines do not involve the original control lines of the vehicle, comply with the various regulations of the vehicle management department, and will not affect the safety and stability of the original control system of the vehicle.

Description of drawings

Fig. 1 is a schematic block diagram of the inventive method;

Fig. 2 is a terminal connection circuit diagram of a double-position double switch of the present invention;

FIG. 3 is a schematic diagram of the longitudinal range of the shooting area of the side-view camera;

FIG. 4 is a schematic diagram of the horizontal range of the shooting area of the side-view camera;

Fig. 5 is a schematic diagram of the installation position of the side-view camera of the present invention on the right exterior rearview mirror.

In the figure, 1 is the housing of the right outside mirror of the vehicle, 2 is the lens of the right outside rearview mirror, 3 is the side view camera, 4 is the cab, 5 is the right A-pillar of the vehicle, 6 is the right front wheel of the vehicle, 7 is the horizontal range of the shooting area of the side-view camera, 8 is the vertical range of the shooting area of the side-view camera, 11 is the first terminal, 12 is the second terminal, 13 is the third terminal, 14 is the fourth terminal, 15 is the fifth terminal, and 16 is the sixth terminal.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings.

In Fig. 1, the present invention provides a kind of method for ensuring the driving safety of electric engineering vehicles, including the vehicle's original navigator with a reversing camera, and the reversing camera captures images of the surrounding environment at the rear of the vehicle and transmits them to the setting In the navigator in the cab; its described method comprises the following steps:

A. A side-view camera is installed on the housing of the vehicle's right outside mirror, which is used to capture the ground/environment image in front of the A-pillar on the right side of the vehicle;

B, after the video output signal of described side view camera is corresponding and connected with the video output signal of original reversing camera, be connected with the video signal input end of navigator;

C. Set a two-position double toggle switch, which is used to switch the power supply of the side-view camera and the original reversing camera and the trigger signal displayed by the navigator;

D. When the vehicle is in the reversing state, place the double-position double switch in the first switch position, the original reversing camera works normally, and the vehicle +12V power supply outputs a trigger signal to the navigator through the double-position double switch. The navigator displays images captured by the reversing camera;

E. When the vehicle is in the non-reversing state, place the double-position double switch in the second switch position to provide power to the side-view camera, the side-view camera works, and the vehicle +12V power supply passes through the double-position double switch The switch outputs a trigger signal to the navigator, and the navigator displays the image captured by the side-view camera;

F. On the premise of not changing the control circuit of the original vehicle, use the vehicle's original navigator with visual reversing radar, the additional side-view camera and the double-position double switch to realize the right side of the vehicle from the driver's position. The visualization of the external environment in the side direction eliminates the driver's blind spot during vehicle driving and ensures the safety of electric engineering vehicles during driving.

In this technical solution, a two-position double switch is set on the instrument panel or console in the vehicle cab, which is used to switch the on/off of the power supply of the side-view camera and the reversing camera; under the control of the two-position double switch, the vehicle The original navigator displays the images captured by the reversing camera when the vehicle is reversing; when the vehicle is not reversing, it displays the images captured by the side view camera. The car's reversing display system realizes the visual function of the image outside the car on the opposite side of the driver's position, and provides visual help for driving operations in narrow lanes, parking by the side, or complex ground conditions, and improves the performance of the car. The safety of electric engineering vehicles in motion.

In Fig. 2, the double-position double-throw switch is a double-position double-throw switch; in the first position of the switch, the first terminal 11 and the fifth terminal 15 of the double-position double-throw switch are connected, and the second The second terminal 12 and the sixth terminal 16 are connected; in the second position of the switch, the first terminal 11 and the third terminal 13 of the double-position double-throw switch are connected, and the second terminal 12 is connected to the fourth terminal. Terminal 14 is connected.

The first terminal 11 of its two-position double switch is connected to the trigger terminal of the reversing image of the navigator, the second terminal 12 is connected to the vehicle +12V power supply terminal, and the third terminal 13 and the fourth terminal 14 are connected in parallel to the The positive power terminal of the side view camera is connected, and the fifth terminal 15 is connected with the positive power terminal of the reversing camera.

When the vehicle is in the reversing state, the two-position double switch is placed in the first switch position, the original reversing camera works normally, and the vehicle-mounted +12V power supply outputs a trigger signal to the navigator through the two-position double switch. The navigator displays the image captured by the reversing camera;

When the vehicle is in a non-reversing state, the two-position double switch is placed in the second switch position to provide power to the side-view camera, and the side-view camera works. The navigator outputs a trigger signal, and the navigator displays the image captured by the side-view camera.

In Fig. 3 and Fig. 4, the method for ensuring the driving safety of electric engineering vehicles provided by the present invention is provided with a side-view camera 3 on the housing 1 of the vehicle right outside mirror, and the video output signal of the side-view camera is It is connected with the video signal input terminal of the navigator; a two-position double switch is set on the dashboard or console (not shown in the figure) in the cab 4, and under the control of the two-position double switch, the navigation When the vehicle is reversing, the instrument displays the pictures captured by the reversing camera; when the vehicle is not reversing, it displays the pictures captured by the side view camera.

The vertical range 8 of the shooting area of the side-view camera is shown in the area where the V-shaped mark is located in FIG. 3 , and the horizontal range 7 of the shooting area of the side-view camera is shown in the area where the V-shaped mark is located in FIG. 4 .

In Fig. 5, the side-view camera 3 is set at an angle of 30 to 45 degrees downward, and is used to photograph the ground scene on the right side of the right A-pillar 5 and the front right side of the vehicle, so that the driver can easily Observe the ground/road conditions in front of the right front wheel 6 of the vehicle or on the side.

In order to facilitate installation and wiring, the side-view camera can be selected as a mini-embedded snap-in camera, and the two-position double switch is a two-position push-button switch or a double boat/rocker switch. Since there are many such products on the market to choose from, their specific models and working principles will not be described here.

Further, after the video output signal line of the side view camera is connected in parallel with the video output signal line of the reversing camera, it is connected to the video signal input terminal of the navigator.

Further, the video signal output end of the side-view camera is connected to the AV-IN port of the navigator.

The video signal output terminal of the side-view camera and the AV-IN port of the navigator can be connected in a wired or wireless manner.

There are many navigators, reversing cameras and embedded snap-in cameras on the market to choose from. The specific wiring method of the video signal between the camera and the navigator will not be described here. You can refer to the content of the product manual for actual modification. conduct.

In terms of the operation control mode of this device, since the video output signals of the side-view camera and the reversing camera have been connected in parallel, and are correspondingly connected with the video signal input terminal (AV-IN port, commonly known as the reversing video cable) of the navigator, then when When the double-position double switch is in the first position (for example, in the unpressed state), the reversing camera works, the power is sent from the fifth terminal to the first terminal, and the display of the navigator is triggered.

When the two-position double switch is in the second position (for example, in the pressed state), the power supply is from the second terminal to the fourth terminal to provide power to the side view camera, because the fourth terminal and the third terminal are directly Connected, the power is sent from the third terminal to the first terminal, triggering the display of the navigator, and then realizing the visualization function of the vehicle's right side orientation.

Since the video output signals of the side-view camera and the reversing camera have been connected in parallel, and a double-position double switch is set for power switching, there is no need for components such as relays to perform complex video signal and power conversion.

In terms of display effect, when the side view function is turned on, the reverse gear operation will make the original reversing video display system automatically switch to the rear view state to realize the reversing visual function, while in the non-reverse gear condition If the side view function is turned on, the original reversing video display system will display the actual ground conditions in front of the right front wheel or on the side of the vehicle, which is helpful for drivers to meet vehicles in narrow lanes, pull over, or drive under complex ground conditions. Actions provide visual aids.

On the premise of not changing the control circuit of the original vehicle, the technical scheme of the present invention utilizes the original reversing video display system, and realizes the visualization function of the side orientation of the right front position of the vehicle with the lowest modification cost and workload, without affecting the original vehicle The safety control performance helps to improve the safety of electric engineering vehicles during driving or moving, and brings great convenience to on-site electric power construction and repair/maintenance operations.

The invention can be widely used in the fields of refitting various electric engineering vehicles or equipment management of vehicles.

Claims (5)

1. guarantee a method for power engineering vehicle driving safety, comprise the original navigating instrument with backup camera of vehicle, the image of the backup camera shooting vehicle rear surrounding environment described in it, is transferred in the navigating instrument be arranged in operator's compartment; The housing of vehicle outside visor arranges a side-looking camera, for taking the ground/environmental images in front, vehicle A post side; It is characterized in that:

By the video output signals of described side-looking camera, corresponding with the video output signals of original backup camera and after connecing, be connected with the video signal input terminal of navigating instrument;

The two change-over switch of a dibit is set, for switching power supply and the navigating instrument display energizing signal of side-looking camera and original backup camera;

When vehicle is in state of rolling backward, two for described dibit change-over switch is placed in first switch position, original backup camera normally works, and vehicle-mounted+12V power supply exports energizing signal by the two change-over switch of dibit to navigating instrument, the described image of navigating instrument display taken by backup camera;

When vehicle is in non-state of rolling backward, two for described dibit change-over switch is placed in second switch position, power supply is provided to described side-looking camera, side-looking camera works, vehicle-mounted+12V power supply exports energizing signal by the two change-over switch of dibit to navigating instrument, the described image taken by navigating instrument display side-looking camera;

The described method guaranteeing an electric engineering car driving safety, achieve many visuals field observing effect of power engineering vehicle, for the driver behavior in arrow path meeting, pulling over observing or complicated ground situation provides visual help, to on-the-spot power construction and maintenance/upkeep operation, bring great convenience;

The described method guaranteeing an electric engineering car driving safety, under the prerequisite of not changing former car control path, utilize the two change-over switch of the original navigating instrument with video vehicle back radar of vehicle, the side-looking camera set up and dibit, realize visual to vehicle right side side coil external environment condition on position of driver, eliminate the vision dead zone of chaufeur in vehicle operation, guarantee the safety in the process of moving of power engineering vehicle;

Its circuit changed and increase, does not relate to the original control path part of automobile, meets the restriction of the various regulation of vehicle management department, can not affect the security and stability of the original control system of vehicle;

On the gauge panel that the two change-over switch of dibit described in it is arranged on vehicular drive indoor or operating console;

Side-looking camera described in it is arranged on below the back housing of vehicle right side outside rear-view mirror, and downward 30 ~ 45 degree of side-looking camera is obliquely installed.

2. according to the method guaranteeing power engineering vehicle driving safety according to claim 1, it is characterized in that the first terminals of the two change-over switch of described dibit trigger line end with navigating instrument reverse image and are connected, second terminals are connected with vehicle-mounted+12V power end, 3rd terminals are with the 4th terminals and be connected with the power positive end of side-looking camera after connecing, and the 5th terminals are connected with the power positive end of backup camera;

When the two change-over switch of dibit is in primary importance, backup camera work, vehicle-mounted+12V power supply is sent to the first terminals, for the display of trigger navigation instrument from the 5th terminals;

When the two change-over switch of dibit is in the second place, vehicle-mounted+12V power supply is from the second terminals to the 4th terminals, power supply is provided to side-looking camera, because the 4th terminals and the 3rd terminals are direct coupled, vehicle-mounted+12V power supply delivers to the first terminals, for the display of trigger navigation instrument from the 3rd terminals.

3. the device adopting method described in claim 1 to guarantee power engineering vehicle driving safety, comprise the original navigating instrument with backup camera of vehicle, arrange a side-looking camera, described side-looking camera is arranged on the housing of the right outside side view mirror of vehicle; It is characterized in that:

By the video output signals of described side-looking camera, corresponding with the video output signals of original backup camera and after connecing, be connected with the video signal input terminal of navigating instrument;

The two change-over switch of a dibit is set, for switching power supply and the navigating instrument display energizing signal of side-looking camera and original backup camera;

When vehicle is in state of rolling backward, two for described dibit change-over switch is placed in first switch position, original backup camera normally works, and vehicle-mounted+12V power supply exports energizing signal by the two change-over switch of dibit to navigating instrument, the described image of navigating instrument display taken by backup camera;

When vehicle is in non-state of rolling backward, two for described dibit change-over switch is placed in second switch position, power supply is provided to described side-looking camera, side-looking camera works, vehicle-mounted+12V power supply exports energizing signal by the two change-over switch of dibit to navigating instrument, the described image taken by navigating instrument display side-looking camera;

The described device guaranteeing an electric engineering car driving safety, achieve many visuals field observing effect of power engineering vehicle, for the driver behavior in arrow path meeting, pulling over observing or complicated ground situation provides visual help, to on-the-spot power construction and maintenance/upkeep operation, bring great convenience;

The described device guaranteeing an electric engineering car driving safety, its circuit changed and increase, does not relate to the original control path part of automobile, meets the restriction of the various regulation of vehicle management department, can not affect the security and stability of the original control system of vehicle;

After the video output signals line of side-looking camera described in it and the video output signals line parallel of backup camera, be connected with the AV-IN port of navigating instrument;

The two change-over switch of dibit described in it is Double-position push button formula switch or duplex ship type/rocker switch, and described side-looking camera is embedded clamping camera.

4., according to the device guaranteeing power engineering vehicle driving safety according to claim 3, it is characterized in that wired or wireless mode can being adopted to be connected between the VT of described side-looking camera and the AV-IN port of navigating instrument.

5. according to the device guaranteeing power engineering vehicle driving safety according to claim 3, it is characterized in that the first terminals of the two change-over switch of described dibit trigger line end with navigating instrument reverse image and are connected, second terminals are connected with vehicle-mounted+12V power end, 3rd terminals are with the 4th terminals and be connected with the power positive end of side-looking camera after connecing, and the 5th terminals are connected with the power positive end of backup camera;

When the two change-over switch of described dibit is placed in primary importance, its first terminals and the 5th terminals are connected, and the second terminals and the 6th terminals are connected;

When the two change-over switch of described dibit is placed in the second place, its first terminals and the 3rd terminals are connected, and the second terminals and the 4th terminals are connected.