Sectors

Feeding

The safety and health of food consumption products is a mandatory objective, achieved in multiple processes thanks to solutions based on machine vision.

Pick & Place on a conveyor belt

OCR reading in bottles

In a liquid-bottle storage system, each bottle is assigned an individual code. These codes provide information about the product, it is required to implement a machine vision system to read them.

The objective is to evaluate and read the corresponding code, for this purpose a machine vision system is implemented that identifies and obtains the information contained in it.

In order for a system to be considered optimal, it is essential to analyze its ability to recognize the different characters, which requires lighting capable of generating the ideal contrast.

OCR inspection of machine vision bottles In this case, the chosen to light is ultraviolet, which, because it has less absorption by the water, generates a high contrast of the code.

Capturing the image with a monochrome sensor and grayscale processing allows us to achieve reliable control information.

Finally, the image is processed through vision libraries.

Code under the influence of UV lighting.

Control of material presence on glass surface

Solution for checking the presence of plastic rubber on the surface corresponding to the lip of the glass container. The presence of this material is essential to ensure proper closure of the package. The control by means of machine vision is carried out from a position perpendicular to the surface through which the container circulates.

Control of material presence on glass surface machine vision

In order to carry out this verification and achieve the objective of corroborating that the container presents valid conditions to guarantee its closure, the difference in the degree of reflection of each of the materials under study is considered.

In the case of glass, the reflection index will be higher than the reflection index of the material which guarantees the closure of the product and makes it possible to identify a product as valid. This inspection is carried out by means of incident lighting that allows the acquisition of an image that distinguishes and facilitates the separation between defective and valid products.

With this application it is possible to alert the bad closing of a container before it is filled, thus preventing the spillage and loss of the product that can cause a great amount of losses, and also allows to safeguard the image of the company in charge of the production of the product before its consumers.

Cookie marking inspection

Solution for the inspection of the marking of biscuits. Machine vision control is performed before the biscuits enter the oven. This process controls the presence of the marking and the different parameters that guarantee its quality.

Cookies inspection program

The presence or absence of incomplete marking is a fairly common problem affecting production, both in terms of product quality and image.

The system is able to determine if the biscuit is well-marked, if it has surface defects or for example if it has an incorrect uniformity of stroke.

In this application, the customer is able to select a "Teach IN" mode for the system to automatically recognize the new marking and store it in the system.

Machine vision biscuit marking inspection

Thanks to this system, the best quality in the product is offered, so that the image of the company and product are not affected by the poor quality of its marking.

Surface inspection of eggs

Solution for the inspection of eggs at surface level by means of machine vision, this application allows to detect the cracks that can appear in the shell and to carry out a control to separate between defective products and valid products.

Inspection of egg cracks by machine vision

This solution was born as a consequence of one of the main problems of the egg industry, which is the presentation of cracks in the shells, turning the product into a defective one.

The vision system is able to avoid the reflection that the egg presents as a response to the illumination and allows to identify the anomalies of this product. A solution classified as necessary to guarantee the quality of the product and reduce the losses that this entails.

In short, this solution allows to alert the arrival of a defective product to the final customer by feeding it with a superior quality and allowing the company to guarantee its efficiency.

Control of defects in biscuits by means of 3D vision

Color inspection of wines

In view of the complex specifications of the current regulations on the measurement of colour in wines, a device is envisaged that works with the precision and range of the spectrum demanded. Solution: Colorimeter operating in L*a*b color space.

Machine vision system designed to meet the need present in the wine industry when analyzing the color of the wine produced, an important property when determining the quality of the product.

In view of the complex specifications of the current regulations regarding the measurement of color in wines, a solution is envisaged that works with the precision and range of the spectrum demanded.

Lab color space

The solution is contemplated with a colorimeter (Astech) capable of returning the value in the CIE L*a*b space, which performs a color space analysis in a more significantly linear way compared to other color analysis methods.

This solution allows a differentiation comparable to the perception of the human eye but with the advantage of eliminating the subjectivity of each individual. The perceptively linear concept refers to the fact that a change of a quantity in a color value must produce a change of almost equal visual importance.

Focusing this device on the inspection of liquids results in the accuracy of the color on the L*a*b scale and allows a thorough analysis of the deviation from the expected color, thus being able to determine if the color is among the desired values.

Extended information on color measurement.

Inspection of liquid in containers by thermography

Solution for applications that need thermal information to be able to control the products that pass through the system, this type of machine vision system offers non-contact temperature measurement, which extends the useful life of the product compared to conventional temperature measuring elements.

Another great advantage of a thermographic camera vision system is the possibility of detecting production errors that are a direct consequence of the temperature changes that exist between the different components that make up the product.

Thermographic liquid inspection

The operation of a thermographic camera is reduced to the acquisition of the infrared emission emitted by the bodies, this allows the camera to work in a wide variety of environments, without the need to take into account external lighting.

Temperature measurement is performed by the relationship between the infrared radiation emitted by an object and its surface temperature, thus making it possible to measure and process this temperature.

Knowing that the human eye cannot perceive the infrared illumination, the thermographic camera converts it to an electrical signal, showing the result according to a color code. In short, we can summarize the function of a thermographic camera as a translation between wavelengths.

Subscribe to our Newsletter

Machine vision with added value

Contact Info

Vision Online SL

contact@visiononline.es

Tel: +34 93 795 92 70

Skype: Vision-Online