CN103600752A

CN103600752A - Automatic detection device for special gondola car hook mistake and detection method of special gondola car hook mistake

Info

Publication number: CN103600752A
Application number: CN201310428257.2A
Authority: CN
Inventors: 王金福; 王贵亮; 段继明
Original assignee: Dalian Huarui Heavy Industry Group Co Ltd
Current assignee: Dalian Huarui Heavy Industry Group Co Ltd
Priority date: 2013-09-18
Filing date: 2013-09-18
Publication date: 2014-02-26
Anticipated expiration: 2033-09-18
Also published as: CN103600752B

Abstract

The invention discloses an automatic detection device for a special gondola car hook mistake and a detection method of the special gondola car hook mistake. The automatic detection device comprises a photographic device, an image processing system and an IO (image orthicon) signal board, wherein the IO signal board is connected with the image processing system and used for transmitting an analyzed and processed result to a PLC (programmable logic controller) system. The principle of the automatic detection device includes that after a railway gondola car is positioned, the PLC system starts a signal for the image processing system, the image processing system starts the photographic device to shoot an image of a hook between carriages crossing over two ends of a tipper, the image is measured by the image analysis processing system after shot, some important features of the image are extracted after the image is split and quantitatively expressed, if quantitative comparison results are the same, the fact that wind shielding pipes beside the car hook are positioned on the same side can be judged, the car hook is correctly hung, otherwise, the car hook is mistakenly hung, and the image processing system gives corresponding action for the PLC system after the results are judged. The abnormal condition of mistaken hooking of the special gondola car is automatically detected by an image recognition method, and performances are more reliable.

Description

Special gondola coupling of vehicles mistake automatic checkout equipment and method of inspection thereof

Technical field

The present invention relates to the wrong hook detecting device of a kind of vehicle, relate to specifically a kind of special gondola coupling of vehicles mistake automatic checkout equipment and method of inspection thereof.

Background technology

Tipper unloading system is a kind of high-efficient automatic operating system that steel mill, power plant, harbour etc. are located that is widely used in, the truck using for dumping.Special gondola is a kind of rolling stock that development in recent years is got up, and between each vehicle, can rotate.The open-top car on ground and the not decoupling device of open-top car on tipper during tipper unloading system dumping special gondola, while rotating assurance dumping by hitch, vehicle does not damage.

It is rotatable 16# hitch that current domestic special gondola mostly is one end, and the other end is non-rotatable 17# hitch, on request, must be that 16# hitch and 17# hitch connect extension.But due to railway marshalling problem, usually occur that 17# connects the phenomenon of hanging with 17# hitch, because 17# hitch can not rotate, therefore, when there is this situation, tipper can be twisted into two parts 17# hitch.At present, each on-the-spot main dependence manual observation addresses this problem, cycle length and the very large hidden danger of existence, a kind of device that wrong hook phenomenon can automatically be detected of market in urgent need.The inventor has declared respectively CN201110454396.3 automatic detecting device for wrong hooks of special gondola in 2011, and CN201110449127.8 Special wrong vehicle hooking detection device for open wagon, utilize license number identification and two kinds of methods of Photoelectric Detection to carry out the research of this technology, this proposition be a kind of more failure-free design plan.

Summary of the invention

Defect in view of prior art existence, the object of the invention is to provide a kind of novel special gondola coupling of vehicles error detector element, this device can an automatic detection vehicle wrong hook situation, and then avoids because 17# hitch connects the accident that hitch is twisted into two parts causing of hanging.

To achieve these goals, technical scheme of the present invention:

Special gondola coupling of vehicles mistake automatic checkout equipment, comprising: for collection vehicle hook image and image is converted to the photographic means of electronic data; Be connected with described photographic means, for view data being analyzed to the image processing system of judgement; Be connected with described image processing system, for the result after image processing system analyzing and processing being transferred to the IO signal panel of PLC system.

Principle of work of the present invention: after first truck is had good positioning, PLC system is to actuation signal of image processing system, image processing system startup photographic means is taken between the compartment that is connected across tipper two ends and is linked up with image, after taking pictures, by image analysis processing system process, image is measured, to some key properties of image being extracted after Image Segmentation Using and carrying out quantization means, if it is identical to quantize comparative result, can judge the other pipe that keeps out the wind of hitch at homonymy, now hitch connects extension correctly, otherwise being that hitch is wrong hangs, after judging result, by image processing system, to signal of PLC system, moved accordingly.

Compared with prior art; beneficial effect of the present invention: the present invention adopts the method for image recognition automatically to detect the wrong hook abnormal condition of vehicle of special gondola; performance is more reliable; can automatically send the timely trouble-shooting of warning reminding operating personal simultaneously; notice car dumper system auto-stop, has increased the safety of equipment.

Accompanying drawing explanation

Vehicle and image detecting device sketch when Fig. 1 hangs for correctly connecting;

Vehicle and image detecting device sketch when Fig. 2 is wrong hook;

Fig. 3 is that the a-a of Fig. 1 analyses and observe rotation diagram;

Fig. 4 is structured flowchart of the present invention;

Fig. 5 image processing system diagram of circuit.

In figure: 1, left side airduct, 2, right side airduct, 3, photographic means.

The specific embodiment

Below in conjunction with accompanying drawing and specific embodiment, further illustrate technical scheme of the present invention:

Through the analysis that studies for a long period of time, find, special gondola connects extension place at hitch following features, hangs correct (16#+17# hitch) as hitch connects that is:, and the pipe that keeps out the wind on hitch side is at homonymy, as Fig. 1; As hitch connects, hang mal, to occur wrong hook (17#+17# hitch), hitch is other keeps out the wind pipe at homonymy not, as shown in Figure 2.

The present invention adopts the method for image recognition to solve the wrong hook problem of vehicle for special gondola, to realize automatic fault detection, automatic arrestment, sends the objects such as warning reminding operating personal trouble-shooting simultaneously.

As Fig. 4, the present invention mainly comprises photographic means, image processing system and IO signal panel; Described photographic means can adopt the equipment such as digital camera, pick up camera or image pick-up card.Its effect is to utilize electronic sensor that optical image is converted to electronic data, and first the light of object enters camera by camera lens, by image-forming component, is converted into digital signal, and digital signal is stored in storage equipment by compute chip; Described image processing and analyzing system adopts computer processing system, first image transmitting is to computing machine, image is divided into pixel, each pixel can represent by three kinds of colors of red, green, blue, every kind of color can represent with numerical value, such width digital image can represent by matrixes capable with M, N row, denoising by computing machine to image, change visual brightness, color, strengthen some feature in image, extract the image that comprises some feature in image, then by VB or VC machine language, the matrix data of image is analyzed relatively; The effect of described IO signal panel is that the result after Computer Analysis is processed is transferred in the IO module of PLC, by signal, isolates, and the result after Computer Analysis is processed is transferred in PLC system.

Concrete:

1. as shown in Figure 1, digital camera device of the present invention is arranged on railway side over against vehicle coupler place, after vehicle is had good positioning in tipper, tipper PLC system is controlled intermediate relay by output module, the contact signal of intermediate relay is input to the IO signal panel being connected with image capturing system, this signal enabling image capturing system.

2. image capturing system obtains after actuation signal, controls digital camera device and claps the hook place photo of picking up the car, and the picture transmission after taking pictures is carried out analyzing and processing to image processing system.Because border is an essential characteristic of image, it has carried the bulk information in image, therefore the border detection of image can not only obtain the useful structural information about border, and can also greatly reduce the data that important plan picture is processed, coloured image border can be defined as the set of the point of discontinuity with boundary characteristic of image color function.

Its method of inspection: the information of linking up with each pixel of coloured image between the compartment that is connected across tipper two ends of 1, photographic means being taken is used coloured light (RGB) three primary colors to represent, RGB three primary colors colourity is represented by different gray values; 2, respectively three color colourity exercise boundaries of red, green, blue are detected, hook situation misdeems.

Described border detection comprises: a, respectively the airduct image of hitch both sides is extracted, with (j, i) presentation graphs, as coordinate points position, wherein j and i carry out the transverse and longitudinal coordinate figure of denotation coordination point, use f(j, i) colourity of denotation coordination point.

Concrete as Fig. 5: according to recursive algorithm, first choose the first row of linking up with coloured image between compartment, the coordinate points of first row, its colourity f(j=1, i=1), judge whether to be greater than airduct colourity setting value set1, if colourity f(j=1, i=1) be not more than airduct colourity setting value set1, increasing is by column that i=i+1 judges, if current chroma is greater than colourity setting value set1, increasing is by column that j=j+1 judges, if its judgment criterion is for there being airduct to exist, between compartment, link up with in coloured image and all can have the pixel that is greater than colourity setting value in every a line, the pixel coordinate value of the coordinate figure of described pixel and hitch is made comparisons, can judge which side that airduct is positioned at hitch.

B, by the judgement of step a, if hitch both sides airduct image is all positioned at the same side, hook is correct; Otherwise be hook mistake.

After judgement finishes, image capturing system is sent coupling of vehicles mistake or connected by IO signal panel hangs correct signal in tipper PLC system, and tipper PLC system is controlled car dumper equipment and made corresponding action.

The above; it is only the preferably specific embodiment of the present invention; but protection scope of the present invention is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; according to technical scheme of the present invention and inventive concept thereof, be equal to replacement or changed, within all should being encompassed in protection scope of the present invention.

Claims

1. special gondola coupling of vehicles mistake automatic checkout equipment, is characterized in that: comprising: for collection vehicle hook image and image is converted to the photographic means of electronic data; Be connected with described photographic means, for view data being analyzed to the image processing system of judgement; Be connected with described image processing system, for the result after image processing system analyzing and processing being transferred to the IO signal panel of PLC system.

2. automatic checkout equipment according to claim 1, is characterized in that: described photographic means can adopt digital camera or pick up camera or image acquisition card apparatus.

3. automatic checkout equipment according to claim 1, is characterized in that: described image processing and analyzing system adopts computer processing system.

4. a special gondola coupling of vehicles mistake automatic testing method, it is characterized in that: first photographic means is arranged on to railway side over against vehicle coupler place, after vehicle is had good positioning in tipper, tipper PLC system is controlled intermediate relay by output module, the contact signal of intermediate relay is input to the IO signal panel being connected with image capturing system, starts image capturing system; Image capturing system obtains after actuation signal, controls photographic means and claps the hook place photo of picking up the car, and the image photograph after taking pictures is transferred to image processing system and carries out analyzing and processing.

5. automatic testing method according to claim 4, it is characterized in that: described analyzing and processing is: the information of linking up with each pixel of coloured image between I, the compartment that is connected across tipper two ends that photographic means is taken is used coloured light three primary colors to represent, coloured light three primary colors colourity is represented by different gray values; II, respectively three color colourity exercise boundaries of red, green, blue are detected, hook situation misdeems, image capturing system is sent coupling of vehicles mistake or connected by IO signal panel hangs correct signal in tipper PLC system, and tipper PLC system is controlled car dumper equipment and made corresponding action.

6. automatic testing method according to claim 5, it is characterized in that: described border detection comprises: a, respectively the airduct image of hitch both sides is extracted, with (j, i) presentation graphs is as coordinate points position, wherein j and i carry out the transverse and longitudinal coordinate figure of denotation coordination point, with f(j, i) colourity of denotation coordination point, according to recursive algorithm, first choose the first row of linking up with coloured image between compartment, the coordinate points of first row, its colourity f(j=1, i=1), judge whether to be greater than airduct colourity setting value set1, if colourity f(j=1, i=1) be not more than airduct colourity setting value set1, increasing is by column that i=i+1 judges, if current chroma is greater than colourity setting value set1, increasing is by column that j=j+1 judges, if its judgment criterion is for there being airduct to exist, between compartment, link up with in coloured image and all can have the pixel that is greater than colourity setting value in every a line, the pixel coordinate value of the coordinate figure of described pixel and hitch is made comparisons, can judge which side that airduct is positioned at hitch, b, by the judgement of step a, if hitch both sides airduct image is all positioned at the same side, hook is correct, otherwise be hook mistake.