Commodity touch sensing method based on machine vision

Abstract

The invention discloses a commodity touch sensing method based on machine vision, and the method comprises the steps: setting a two-dimensional code on a commodity or a display shelf of the commodity,monitoring the appearance or disappearance of the two-dimensional code through a camera, and judging whether the commodity is picked up or put down or not: calling shopping guide information of the corresponding commodity if the commodity is judged to be picked up, and displaying the shopping guide information on a display screen; and if the commodity is judged to be put down, stopping playing the shopping guide information of the commodity. According to the invention, only the two-dimensional code label needs to be pasted on the display rack or the two-dimensional code label needs to be printed on the commodity, the whole system utilizes the original display facility, the modification cost is low, the maintenance cost of the whole system is low, the workload of on-site shop assistants isreduced, the accuracy of article identification is ensured, and the accuracy of commodity display is also ensured.

Description

technical field [0001] The invention relates to the broadcasting of shopping guide information in physical retail stores, in particular to a machine vision-based product touch perception method. Background technique [0002] In the existing physical stores of the retail industry, the corresponding shopping guide information can be played by sensing which products are touched by customers. The specific methods include: special display racks, RFID and active wireless tags. in: [0003] The special display rack method is to install magnetic induction, light induction, gravity induction and other induction devices on the display rack. When picking up / putting down the goods, the induction device will be triggered. This method requires each shelf to be modified, and the cost of electronic products is high. At the same time Each brand design is required to correspond to a dedicated display shelf, resulting in high shelf costs and cannot be popularized; [0004] The RFID method is...

AI Technical Summary

Problems solved by technology

[0003] The special display rack method is to install magnetic induction, light induction, gravity induction and other induction devices on the display rack. When picking up / putting down the goods, the induction device will be triggered. This method requires each shelf to be modified, and the cost of electronic products is high. At the same time Each brand design is required to correspond to a dedicated display shelf, resulting in high shelf costs and cannot be popularized;

[0004] The RFID method is to paste an RFID tag on the product, and install an RFID reader and an antenna on the display shelf at the same time. When picking up the product, the RFID tag is farther away from the antenna. It is mainly suitable for inventory, not suitable for sensing goods to be taken / put down, and its reading effect is not good;

[0005] In the active wireless tag method, the device installed on the product has a battery. When the product is picked up, the shock sensor in the device will sense it and then send it to the host through wireless. Since each tag is an electronic product, The stability and accuracy of the vibration sensor and the battery life have a great impact on the usability of the product. At the same time, the sound in many commercial occasions is relatively loud, which can easily cause the vibration of the vibration sensor and cause false alarms.

[0006] It can be seen that the existing product touch sensing technology is to install electronic devices on the product and the display rack, which will affect the look and feel of the product and the display rack, and the sensing device cannot be installed on the product or the display rack. Therefore, the manufacturers of the sensing device Will design display racks with induction devices to replace; and different brand owners have their own VI and SI standards, resulting in each brand owner having to customize a dedicated display rack, which will be very costly and cannot be popularized

In addition, when the environment changes and the product appearance is similar in the existing shelf recognition process, the recognition rate is very low, and it is impossible to achieve commercial perception and recognition.

[0007] Since each label or display rack needs to set up the corresponding product on site, each store will have to launch new products every once in a while, and it needs to be reset again. The workload is heavy, which increases the burden on the on-site shop assistants; Checking, after a period of time, many of the corresponding relationships between labels and products are wrong, which makes the system invalid

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