阅读说明：本技术 商品自动称重设备、系统及方法 (Automatic commodity weighing device, system and method ) 是由 王宏伟 于 2019-01-14 设计创作，主要内容包括：本发明公开了一种商品自动称重设备、系统及方法,其中,商品自动称重设备包括控制单元、称重单元、信息读写单元和识别单元；控制单元分别与称重单元、识别单元和信息读写单元电连接。本发明通过设置电子标签于包装袋上,当用户将容纳有商品的包装袋放置于商品自动称重设备的称重单元上,称重单元称取商品的重量,识别单元实现对包装袋内的商品进行采集图像,控制单元通过图像完成对商品的识别,并获取商品相应的单价和重量,得到商品的总价,控制单元通过信息写入单元将总价写入至电子标签中进行记录,最终完成包装袋内的商品的自动称量功能,节省人力及包装成本,也极大的方便了用户,省时省力。(The invention discloses automatic commodity weighing equipment, a system and a method, wherein the automatic commodity weighing equipment comprises a control unit, a weighing unit, an information reading and writing unit and an identification unit; the control unit is respectively and electrically connected with the weighing unit, the identification unit and the information reading and writing unit. According to the invention, the electronic tag is arranged on the packaging bag, when a user places the packaging bag containing the commodity on the weighing unit of the automatic commodity weighing equipment, the weighing unit weighs the weight of the commodity, the identification unit realizes image acquisition of the commodity in the packaging bag, the control unit completes the identification of the commodity through the image and acquires the corresponding unit price and weight of the commodity to obtain the total price of the commodity, the control unit writes the total price into the electronic tag through the information writing unit for recording, and finally completes the automatic weighing function of the commodity in the packaging bag, so that the manpower and the packaging cost are saved, the user is greatly facilitated, and the time and the labor are saved.)

1. The automatic commodity weighing device is characterized by comprising a control unit, a weighing unit, an information reading and writing unit and an identification unit; the control unit is respectively and electrically connected with the weighing unit, the identification unit and the information reading and writing unit;

the weighing unit is used for placing a packaging bag for containing commodities, and the packaging bag is provided with an electronic tag;

the weighing unit is used for weighing the weight of the commodity contained in the packaging bag and sending the weight to the control unit;

the identification unit is used for acquiring images of the commodities contained in the packaging bags and sending the images to the control unit, and the unit price corresponding to the commodities is stored in the control unit;

the control unit is used for receiving the image and obtaining unit prices corresponding to the commodities in the image according to the image;

the control unit is used for obtaining the total price of the commodity according to the unit price and the weight and sending the total price to the information reading and writing unit;

the information reading and writing unit is used for writing the total price to the electronic tag.

2. The automatic commodity weighing device according to claim 1, wherein the control unit is further configured to determine whether the commodities in the image are of the same variety after receiving the image, if so, obtain unit prices of the commodities in the image according to the image, and if not, generate first alarm information.

3. The automatic commodity weighing device of claim 2, further comprising an alarm unit, wherein the alarm unit is electrically connected to the control unit, the control unit is configured to send the first alarm information to the alarm unit, the alarm unit is configured to give an alarm to the first alarm information, and the alarm unit comprises an audible and visual alarm device.

4. The automatic commodity weighing device of claim 1, wherein the information reading and writing unit is further configured to read the electronic tag to obtain price data after writing the total price to the electronic tag, and send the price data to the control unit, the control unit is configured to determine whether the price data is consistent with the total price, if so, generate writing success information, and if not, send the total price to the information reading and writing unit again;

and/or the control unit is further configured to obtain a name of a commodity in the image according to the image, and send the name to the information reading and writing unit, and the information reading and writing unit is configured to write the name to the electronic tag;

and/or the control unit is further configured to generate order information according to the total price and send the order information to the information reading and writing unit, and the information reading and writing unit is further configured to write the order information to the electronic tag, where the order information includes at least one of an order number and an order time.

5. The automatic commodity weighing apparatus of claim 1, further comprising a sealing device, wherein the opening portion of the packaging bag is further configured to be disposed at a predetermined position of the sealing device, and the sealing device is configured to seal the opening portion of the packaging bag;

and/or, the automatic commodity weighing equipment further comprises a display unit, the display unit is electrically connected with the control unit, the control unit is used for sending the total price to the display unit, and the display unit is used for displaying the total price.

6. The automatic commodity weighing device according to claim 5, wherein when the automatic commodity weighing device comprises a sealing device, the identification unit further comprises a positioning sensing unit, the positioning sensing unit is electrically connected with the control unit, the positioning sensing unit is used for detecting whether the opening of the packaging bag is placed at the preset position and sending a detection result to the control unit, the control unit is used for judging whether the detection result is placed in place, if yes, an image acquisition instruction is generated to the identification unit, and the identification unit is used for receiving the image acquisition instruction and acquiring the image of the commodity; if not, generating second alarm information; the control unit is also used for receiving the image and then generating a sealing instruction and sending the sealing instruction to the sealing device, and the sealing device is used for receiving the sealing instruction and sealing the opening of the packaging bag.

7. An automatic commodity weighing system comprising the automatic commodity weighing apparatus of any one of claims 1 to 6 and the packaging bag of claim 1.

8. An automatic weighing method for commodities is characterized by comprising the following steps:

placing a packaging bag containing commodities on a weighing unit, wherein an electronic tag is arranged on the packaging bag;

weighing the weight of the commodity contained in the packaging bag by using a weighing unit, and sending the weight to a control unit;

acquiring an image of the commodity contained in the packaging bag by using an identification unit, and sending the image to the control unit, wherein unit prices corresponding to the commodity are stored in the control unit;

the control unit receives the image and obtains unit price corresponding to the commodity in the image according to the image; the control unit obtains the total price of the commodity according to the unit price and the weight and sends the total price to the information reading and writing unit; and the information reading and writing unit writes the total price to the electronic tag.

9. The method for automatically weighing goods according to claim 8, wherein the step of receiving the image by the control unit and obtaining the unit price corresponding to the goods in the image according to the image comprises the following steps:

the control unit judges whether the commodities in the image are of the same variety or not after receiving the image, if yes, unit prices of the commodities in the image are obtained according to the image, and if not, first alarm information is generated.

10. The automatic merchandise weighing method of claim 9, wherein the step of generating first alarm information further comprises, after the step of generating first alarm information:

the control unit sends the first alarm information to the alarm unit, the alarm unit carries out alarm prompt on the first alarm information, and the alarm unit comprises an audible and visual alarm device.

11. The automatic weighing method of an article of merchandise according to claim 8,

the step of writing the total price to the electronic tag by the information reading and writing unit further includes:

the information reading and writing unit reads the electronic tag to obtain price data and sends the price data to the control unit;

the control unit judges whether the price data is consistent with the total price or not, if so, writing success information is generated, and if not, the total price is sent to the information reading and writing unit again;

and/or the presence of a gas in the gas,

the control unit receives the image and obtains unit price corresponding to the commodity in the image according to the image; the control unit obtains the total price of the commodity according to the unit price and the weight and sends the total price to the information reading and writing unit; the step of writing the total price to the electronic tag by the information reading and writing unit further includes:

the control unit also acquires the name of the commodity in the image according to the image and sends the name to the information reading and writing unit, and the information reading and writing unit writes the name to the electronic tag;

and/or the presence of a gas in the gas,

the control unit obtains unit prices corresponding to commodities in the image according to the image; the control unit obtains the total price of the commodity according to the unit price and the weight and sends the total price to the information reading and writing unit; the step of writing the total price to the electronic tag by the information reading and writing unit further includes:

the control unit generates order information according to the total price and sends the order information to the information reading and writing unit, and the information reading and writing unit writes the order information to the electronic tag, wherein the order information comprises at least one of order number and order time.

12. The method for automatically weighing goods according to claim 8, wherein the step of placing the packages on the weighing unit after containing the goods further comprises:

arranging an opening part of the packaging bag at a preset position of the sealing device, and sealing the opening part of the packaging bag by the sealing device;

and/or the presence of a gas in the gas,

the step that the control unit obtains the total price of the commodity according to the unit price and the weight and sends the total price to the information reading and writing unit further comprises the following steps:

and the control unit sends the total price to a display unit, and the display unit displays the total price.

13. The automatic weighing method for commodities according to claim 12, wherein the step of setting the opening portion of said packing bag at a predetermined position of said closing means, said step of closing the opening portion of said packing bag by said closing means further comprises:

detecting whether the opening part of the packaging bag is placed at the preset position by using the positioning sensing unit, and sending a detection result to the control unit;

the control unit judges whether the detection result is placed in place or not, if yes, an image acquisition instruction is generated to the identification unit, and the identification unit receives the image acquisition instruction and acquires the image of the commodity; if not, generating second alarm information;

the control unit generates a sealing instruction after receiving the image and sends the sealing instruction to the sealing device;

and the sealing device receives the sealing instruction and seals the opening part of the packaging bag.

Technical Field

The invention relates to the field of automatic control, in particular to automatic commodity weighing equipment, system and method.

Background

At present, the commodity structure of the supermarket is that food and beverage occupy the vast majority, and the bagged snacks are taken as main materials to meet the instant demand of people. However, for fresh fruit commodities which need to be purchased by a user, the current supermarkets generally adopt the modes of manual packaging, price tag attachment and the like before the commodities are put on shelves. For example, in the case of fruit such as apples, which are relatively large in size, the labor cost is increased by selling the fruit individually or packing the products in boxes for sale. In the existing supermarket, the RFID (radio frequency identification technology) technology is mostly adopted as a commodity identification and settlement form, each commodity/box needs to be attached with an electronic tag, and the packing cost of the commodity is correspondingly increased.

Particularly, for some small and scattered commodities such as preserved plums, preserved fruits, bulk chocolate, jelly and the like which need to be purchased twice, it is not suitable to attach an electronic tag to each commodity from the aspects of cost and implementation. At present, the supermarket is inconvenient for selling scattered commodities.

Disclosure of Invention

The invention aims to overcome the defect that the current supermarket is inconvenient for weighing scattered commodities in the prior art, and provides automatic commodity weighing equipment, system and method.

The invention solves the technical problems through the following technical scheme:

the automatic commodity weighing device comprises a control unit, a weighing unit, an information reading and writing unit and an identification unit; the control unit is respectively and electrically connected with the weighing unit, the identification unit and the information reading and writing unit;

the weighing unit is used for placing a packaging bag for containing commodities, and the packaging bag is provided with an electronic tag;

the weighing unit is used for weighing the weight of the commodity contained in the packaging bag and sending the weight to the control unit;

the identification unit is used for acquiring images of the commodities contained in the packaging bags and sending the images to the control unit, and the unit price corresponding to the commodities is stored in the control unit;

the control unit is used for receiving the image and obtaining unit prices corresponding to the commodities in the image according to the image;

the control unit is used for obtaining the total price of the commodity according to the unit price and the weight and sending the total price to the information reading and writing unit;

the information reading and writing unit is used for writing the total price to the electronic tag.

Preferably, the control unit is further configured to determine whether the commodities in the image are of the same variety after receiving the image, obtain unit prices of the commodities in the image according to the image if the commodities in the image are of the same variety, and generate first alarm information if the commodities in the image are not of the same variety.

Preferably, the automatic commodity weighing equipment further comprises an alarm unit, the alarm unit is electrically connected with the control unit, the control unit is used for sending the first alarm information to the alarm unit, the alarm unit is used for carrying out alarm prompt on the first alarm information, and the alarm unit comprises a sound-light alarm device.

Preferably, the information reading and writing unit is further configured to read the electronic tag to obtain price data after writing the total price to the electronic tag, and send the price data to the control unit, where the control unit is configured to determine whether the price data is consistent with the total price, if so, generate writing success information, and if not, send the total price to the information reading and writing unit again;

and/or the control unit is further configured to obtain a name of a commodity in the image according to the image, and send the name to the information reading and writing unit, and the information reading and writing unit is configured to write the name to the electronic tag;

and/or the control unit is further configured to generate order information according to the total price and send the order information to the information reading and writing unit, and the information reading and writing unit is further configured to write the order information to the electronic tag, where the order information includes at least one of an order number and an order time.

Preferably, the automatic commodity weighing equipment further comprises a sealing device, the opening part of the packaging bag is also used for being arranged at a preset position of the sealing device, and the sealing device is used for sealing the opening part of the packaging bag;

and/or, the automatic commodity weighing equipment further comprises a display unit, the display unit is electrically connected with the control unit, the control unit is used for sending the total price to the display unit, and the display unit is used for displaying the total price.

Preferably, when the automatic commodity weighing device comprises a sealing device, the identification unit further comprises a positioning sensing unit, the positioning sensing unit is electrically connected with the control unit, the positioning sensing unit is used for detecting whether the opening part of the packaging bag is placed at the preset position or not and sending a detection result to the control unit, the control unit is used for judging whether the detection result is placed in place or not, if yes, an image acquisition instruction is generated to the identification unit, and the identification unit is used for receiving the image acquisition instruction and acquiring the image of the commodity; if not, generating second alarm information; the control unit is also used for receiving the image and then generating a sealing instruction and sending the sealing instruction to the sealing device, and the sealing device is used for receiving the sealing instruction and sealing the opening of the packaging bag.

An automatic commodity weighing system comprises the automatic commodity weighing equipment and the packaging bag.

An automatic weighing method for commodities, comprising:

placing a packaging bag containing commodities on a weighing unit, wherein an electronic tag is arranged on the packaging bag;

weighing the weight of the commodity contained in the packaging bag by using a weighing unit, and sending the weight to a control unit;

acquiring an image of the commodity contained in the packaging bag by using an identification unit, and sending the image to the control unit, wherein unit prices corresponding to the commodity are stored in the control unit;

the control unit receives the image and obtains unit price corresponding to the commodity in the image according to the image; the control unit obtains the total price of the commodity according to the unit price and the weight and sends the total price to the information reading and writing unit; and the information reading and writing unit writes the total price to the electronic tag.

Preferably, the step of receiving the image by the control unit and obtaining the unit price corresponding to the commodity in the image according to the image includes:

the control unit judges whether the commodities in the image are of the same variety or not after receiving the image, if yes, unit prices of the commodities in the image are obtained according to the image, and if not, first alarm information is generated.

Preferably, the step of generating the first alarm information further includes:

the control unit sends the first alarm information to the alarm unit, the alarm unit carries out alarm prompt on the first alarm information, and the alarm unit comprises an audible and visual alarm device.

Preferably, the first and second liquid crystal films are made of a polymer,

the step of writing the total price to the electronic tag by the information reading and writing unit further includes:

the information reading and writing unit reads the electronic tag to obtain price data and sends the price data to the control unit;

the control unit judges whether the price data is consistent with the total price or not, if so, writing success information is generated, and if not, the total price is sent to the information reading and writing unit again;

and/or the presence of a gas in the gas,

the control unit receives the image and obtains unit price corresponding to the commodity in the image according to the image; the control unit obtains the total price of the commodity according to the unit price and the weight and sends the total price to the information reading and writing unit; the step of writing the total price to the electronic tag by the information reading and writing unit further includes:

the control unit also acquires the name of the commodity in the image according to the image and sends the name to the information reading and writing unit, and the information reading and writing unit writes the name to the electronic tag;

and/or the presence of a gas in the gas,

the control unit obtains unit prices corresponding to commodities in the image according to the image; the control unit obtains the total price of the commodity according to the unit price and the weight and sends the total price to the information reading and writing unit; the step of writing the total price to the electronic tag by the information reading and writing unit further includes:

the control unit generates order information according to the total price and sends the order information to the information reading and writing unit, and the information reading and writing unit writes the order information to the electronic tag, wherein the order information comprises at least one of order number and order time.

Preferably, the step of placing the packing bag on the weighing unit after containing the commodity further comprises the following steps:

arranging an opening part of the packaging bag at a preset position of the sealing device, and sealing the opening part of the packaging bag by the sealing device;

and/or the presence of a gas in the gas,

the step that the control unit obtains the total price of the commodity according to the unit price and the weight and sends the total price to the information reading and writing unit further comprises the following steps:

and the control unit sends the total price to a display unit, and the display unit displays the total price.

Preferably, the step of setting the opening portion of the packing bag at a preset position of the sealing device, and the step of sealing the opening portion of the packing bag by the sealing device further includes:

detecting whether the opening part of the packaging bag is placed at the preset position by using the positioning sensing unit, and sending a detection result to the control unit;

the control unit judges whether the detection result is placed in place or not, if yes, an image acquisition instruction is generated to the identification unit, and the identification unit receives the image acquisition instruction and acquires the image of the commodity; if not, generating second alarm information;

the control unit generates a sealing instruction after receiving the image and sends the sealing instruction to the sealing device;

and the sealing device receives the sealing instruction and seals the opening part of the packaging bag.

The positive progress effects of the invention are as follows: according to the invention, the electronic tag is arranged on the packaging bag, when a user places the packaging bag containing commodities on the weighing unit of the automatic commodity weighing equipment, the weighing unit weighs the weight of the commodities, the recognition unit realizes image acquisition of the commodities in the packaging bag, the control unit completes commodity recognition through the images and obtains the corresponding unit price and weight of the commodities to obtain the total price of the commodities, the control unit writes the total price into the electronic tag through the information writing unit for recording, and finally completes the automatic weighing function of the commodities in the packaging bag.

Drawings

Fig. 1 is a schematic block diagram of an automatic weighing apparatus for commercial products according to embodiment 1 of the present invention.

Fig. 2 is a schematic structural view of a packing bag of the automatic commodity weighing device according to embodiment 1 of the present invention.

Fig. 3 is a schematic block diagram of an automatic weighing apparatus for commercial products according to embodiment 2 of the present invention.

Fig. 4 is a schematic flow chart of an automatic weighing method for a commodity according to embodiment 3 of the present invention.

Fig. 5 is a schematic flow chart of an automatic weighing method for goods according to embodiment 4 of the present invention.

Fig. 6 is a flowchart illustrating a step 201' of an automatic weighing method for goods according to embodiment 4 of the present invention.

Fig. 7 is a flowchart illustrating step 204 of the automatic weighing method for goods according to embodiment 4 of the present invention.

Fig. 8 is a schematic block diagram of an automatic weighing system for goods according to embodiment 5 of the present invention.

Detailed Description

The invention is further illustrated by the following examples, which are not intended to limit the scope of the invention.