KR102273794B1 - Warning output system of un-manned selling apparatus - Google Patents

Abstract

The present invention relates to a warning transmission system for a vending machine. The warning transmission system for a vending machine includes: a product storage part including a door part opening and closing a storage space, at least one rack part placed in the storage space, and a weight calculation part calculating a weight change value of a product placed on the rack part; an input/output part receiving a signal of a user and outputting at least one among a voice, a video and an image to the outside; a payment part making payment for the product ejected from the product storage part, with a payment method of the user; and a control part determining whether the weight change value corresponds to a multiple value of preset product unit weight. The control part, if the weight change value does not correspond to the multiple value of product unit weight, controls the input/output part to output at least one among a warning voice, a warning video and a warning image to the outside. Therefore, the present invention is capable of enabling efficient stock and sales management.

Description

Unmanned vending machine warning transmission system {WARNING OUTPUT SYSTEM OF UN-MANNED SELLING APPARATUS}

The present invention relates to a warning transmission system for an unmanned vending machine capable of transmitting a warning to the outside in the event of an abnormal theft or purchase phenomenon in the unmanned vending machine.

In general, in order to purchase a product at a store, the buyer selects the product they want to purchase, takes the product to a checkout place, such as a checkout counter, for payment of the selected product, and pays the seller to purchase it. are being adopted

For example, when purchasing coffee at a convenience store, the buyer obtains the coffee he wants to purchase at the convenience store from the product storage department, such as a refrigerator, takes it to the checkout counter, hands it to the seller, and the seller provides price information for the product After determining using barcodes, etc., the purchase stage of the product is completed by paying the amount for the determined price and passing it to the buyer.

However, in the case of the product purchase method as described above, since the seller must wait at the stand, there is a problem in that the product cannot be purchased when manpower is not assigned, such as when the seller is vacant due to circumstances.

In addition, when a large number of buyers flock in a short time or there is only one stand for checkout, there is a problem in that the buyer has to wait for a long time to purchase the product.

Recently, in order to overcome this problem, various unmanned vending devices such as kiosks are installed in product vendors, and the situation in which buyers can directly purchase products using the unmanned vending device without directly bringing the product to the seller is increasing.

The prior art literature on the conventional unmanned vending device is as follows.

Patent Registration No. 10-1949258 (Title of Invention: Kiosk-based payment system) However, one of the most vulnerable problems in the conventional unmanned sales system is related to security. In the case of the unmanned sales system, since goods are sold without manpower in the store, there is a problem that there are no supervisors. In particular, some users steal products sold in the unmanned sales system, or criminal acts such as theft, or There is a problem of randomly changing the sorting. Looking at the example of theft in the conventional unmanned sales system, after opening the product storage unit, 1) simply taking out the product and taking it out, 2) opening the product storage unit and ingesting only the contents of the product such as beverages separately The act of putting it back in later also occurs frequently. In addition to this, 3) the act of separately carrying free gift items attached to the product, or 4) the user placing the product in a place other than the original shelf, causing the product display or price information to be misrepresented. is occurring Store operation or management is becoming increasingly difficult due to the various problems described above. In particular, when there is no free gift product or the product is empty, there is a lot of room for complaints and labor costs to deal with it, as well as a problem in that normal store operations such as inventory management are disrupted due to theft, etc., and the number of products There is a problem in that the image of the store deteriorates as empty containers are placed for payment.

In order to solve the above problems, an unmanned vending machine that can send out a warning sound when payment is not made despite the original arrangement, such as a change in the location of the product stored inside the product storage unit or theft of the product. The purpose of this is to provide a warning sending system of

A warning sending system of an unmanned vending machine according to an embodiment of the present invention provides a weight for calculating a weight change value of a door unit for opening and closing a storage space, one or more shelves disposed in the storage space, and a product seated on the shelf unit a product storage unit including a calculation unit; an input/output unit for receiving a user's signal and outputting at least one of audio, video, and image to the outside; a payment unit configured to pay for the product taken out from the product storage unit as a user's payment method; and a control unit for determining whether the weight change value corresponds to a multiple value of a preset product unit weight, wherein the control unit controls the input/output unit if the weight change value does not correspond to a multiple value of the product unit weight Thus, it is characterized in that at least one of a warning sound, a warning image, and a warning image is output to the outside.

In addition, the product storage unit further includes a door sensor for determining whether the door unit opens or closes the storage space, and the weight calculation unit measures a first weight value of the product seated on the shelf when the door unit is opened. , when the door unit is closed, a second weight value of the product seated on the shelf is measured, and the weight change value is calculated as a difference value between the first weight value and the second weight value.

In addition, the weight calculation unit calculates a third weight value of the product seated on the shelf when a set weight calculation time elapses, and the control unit controls the input/output unit when the third weight value is determined to be less than or equal to a set weight value Thus, it is characterized in that at least one of a warning sound, a warning image, and a warning image is output to the outside.

In addition, the product storage unit further includes an image recognition unit for recognizing a photographed image of the product seated on the shelf, and the image recognition unit recognizes a first photographed image of the product seated on the shelf when the door unit is opened and when the door unit is closed, a second photographed image of the product seated on the shelf is recognized, and the control unit compares the first photographed image with the second photographed image to obtain the first photographed image with the second photographed image. When a product not recognized in the image is recognized, the input/output unit is controlled to output at least one of a warning sound, a warning image, and a warning image to the outside.

In addition, when the door sensor determines that the door unit has opened the storage space for more than a set time, the control unit controls the input/output unit to output at least one of a warning sound, a warning image, and a warning image to the outside. .

In addition, further comprising a payment method recognition unit for recognizing the payment method to determine whether the payment method is normal, when the payment method recognition unit determines that the payment method is an abnormal payment method, the control unit controls the input/output unit Thus, it is characterized in that at least one of a warning sound, a warning image, and a warning image is output to the outside.

According to the warning sending system of the unmanned vending machine according to the embodiment of the present invention having the above configuration, the following effects are obtained.

First, for security or theft, the biggest weakness of the unmanned sales system, whether the product was sold properly based on the weight measured and the recognized image in the product storage unit, or whether the product was lost or changed in an abnormal way such as theft or defrauding can be judged

In particular, there is an effect that can effectively prevent product theft in various ways, such as when the weight of the product is changed to another product with the same weight or when the product is changed to a product with a different weight by using both the weight-based and the image-based. For example, in the case of milk with the same container and contents as a whole, it is possible to check whether the product has been changed by using the image basis, and when the milk is partially consumed and then re-stored in the product storage unit, the weight basis is used. Thus, it can be confirmed that the product is placed in an abnormal state.

In addition, by outputting a warning sound and a warning image at the same time, not only the person concerned but also other users can recognize that theft or defrauding has occurred, thereby effectively preventing abnormal sales methods.

By efficiently utilizing the theft prevention function, which is the biggest weakness of the unmanned sales system, it is possible to reduce labor costs and management costs for store operation, and also has the effect of efficiently managing inventory and sales of the store.

1 is a block diagram of a warning sending system of an unmanned vending machine according to an embodiment of the present invention;
2 is a perspective view showing a product storage unit and an input/output unit of the warning sending system according to an embodiment of the present invention;
3 is a perspective view illustrating a state in which the door part of the product storage unit of the warning sending system according to the embodiment of the present invention is opened.
4 is a flowchart illustrating a warning sending step of an unmanned vending machine according to an embodiment of the present invention.
5 is a flowchart illustrating a warning sending step of an unmanned vending machine according to another embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings, embodiments of the present invention will be described in detail so that those of ordinary skill in the art to which the present invention pertains can easily implement them. The present invention may be embodied in many different forms and is not limited to the structure or method described herein.

An embodiment of the present invention relates to a warning sending system 100 used in an unmanned vending machine. Hereinafter, such a warning sending system 100 will be briefly referred to as a “warning system”.

1 is a block diagram of a warning sending system 100 of an unmanned vending machine according to an embodiment of the present invention, and FIG. 2 is a product receiving unit 110 and an input/output unit of the warning sending system 100 according to an embodiment of the present invention. 120 is a perspective view, and FIG. 3 is a perspective view showing a state in which the door part 112 of the product storage part 110 of the warning sending system 100 according to an embodiment of the present invention is opened.

1 to 3 , the unmanned vending machine warning sending system 100 according to an embodiment of the present invention transmits a warning to the outside through voice and video when the user does not normally purchase the product, thereby not only the user but also the outside. It is a means of making them aware of the current situation.

The unmanned vending machine warning sending system 100 receives a payment signal for payment from a product receiving unit 110 that stores a product therein, calculates the weight of the product and recognizes an image, and a user, and makes payment to the outside. The input/output unit 120 that outputs information and setting information and can send a warning to the outside in case of abnormal operation, and the payment unit 130 that allows the user to select a desired product from the product storage unit 110 and perform payment ) and a management server unit 140 capable of determining whether the product has been sold normally or an abnormal operation has been made by comparing the weight calculated from the product storage unit 110 and the recognized image.

The product storage unit 110 is a means in which one or more storage spaces in which products can be stored can be formed. In detail, the product storage unit 110 includes a case unit 111 having a storage space therein, a door unit 112 disposed in front of the case unit 111 and selectively opening and closing the storage space, and a case unit 111 . One or more shelves 113 disposed inside to partition a storage space and on which products can be seated, a weight calculating unit 114 disposed on one side of the shelf 113 and calculating the weight of the seated products, a shelf portion ( 113) may include an image recognition unit 115 capable of recognizing an image of the product seated therein, and a locking unit for selectively maintaining the door unit 112 in a locked state.

The case part 111 may have a rectangular shape and a box shape extending long in the vertical direction. In addition, the case part 111 may be made of a material that can keep warm or cool the food material stored in the storage space. The case unit 111 is generally configured to include a stand used in a store or a convenience store, and a redundant description thereof will be omitted.

The door unit 112 is a means for selectively opening or closing the case unit 111 , and may include a slide (sliding door) or a rotary door. The door unit 112 may selectively open or close the case unit 111 by a locking unit, and may include a door sensor capable of detecting an open or closed state. When the door unit 112 opens or closes the case unit 111 , the door sensor is a means for detecting a corresponding state, and may be used to check the open state of the door unit 112 later.

In addition, when the set time elapses in the open state, the door unit 112 is formed with a power unit capable of rotating the door unit 112 so that the door unit 112 can automatically close the case unit 111 . can be In detail, when a set time elapses while the user opens the door 112 , the power unit operates to operate the door 112 so that the door 112 closes the case 111 . For example, the power unit may have a structure in which a motor is disposed and the hinge unit of the door unit is folded by rotation of the motor, but the present invention is not limited thereto, and any structure is possible as long as the door unit 112 can be rotated.

The shelf part 113 may partition the storage space inside the case part 111 in a vertical or horizontal direction, and in particular, when partitioning in a horizontal direction, products such as food materials may be seated on the seating surface (upper surface). Accordingly, the purchaser can check the product mounted on the shelf unit 113 and take out the desired purchased product to the outside. In addition, a weight calculation unit 114 and an image recognition unit 115 may be disposed on the shelf unit 113 . A detailed description thereof will be given later.

The weight calculation unit 114 is disposed on one side of the shelf unit 113 and is a means capable of calculating a change in weight of the product accommodated in the storage space. In detail, the weight calculation unit 114 includes a plurality of weight sensors 114a that are disposed on each of the one or more shelf units 113 and can sense the weight of the stored products arranged on the shelf unit 113 in real time; A weight integrating unit 114b disposed on each of one or more shelf units 113 and calculating an average weight change value by integrating the weight change values detected by a plurality of weight sensors 114a disposed on the corresponding shelf units 113. may include.

In addition, the weight calculation unit 114 normally recognizes the payment method from the payment method recognition unit 131, and when the user opens the door unit 112, that is, when the door sensor determines that the door unit 112 is opened. 1 weight value can be measured, and when the user closes the door part 112, that is, when the door sensor determines that the door part 112 is closed, the second weight value can be measured, and the first weight value and the second weight value can be measured. 2 The weight change value can be calculated based on the difference value of the weight values.

Also, the weight calculation unit 114 may calculate the weight for each shelf unit 113 repeatedly based on the weight calculation time set when the lock unit unlocks the door. This is to grasp the product stock status inside the product storage unit 110 in real time.

The image recognition unit 115 is disposed inside the product storage unit 110 and is a means for photographing a product disposed on the shelf unit 113 to recognize a photographed image. In detail, the image recognition unit 115 has a sensor disposed therein, and when the sensor recognizes the time when the door unit 112 opens the product storage unit 110 , the first of the products seated in the product storage unit 110 . A photographed image can be obtained, and when the sensor recognizes the time when the door unit 112 closes the product storage unit 110, a second photographed image of the product seated in the photographing of the product storage unit 110 can be obtained. have. In this case, the image recognition unit 115 generates a plurality of photographed images by photographing the product storage unit 110 at set time intervals, or captures each photographed image at the opening and closing time points of the product storage unit 110 . can create

The lock unit is disposed on the door unit 112 and the case unit 111 to lock the door unit 112 so that the case unit 111 can be opened when it is determined that the payment method recognized by the payment unit 130 is a normal payment method. can be released, and on the contrary, when it is determined that the payment method is abnormal, the door unit 112 may maintain the locked state to maintain the closed state of the case unit 111 .

The input/output unit 120 is a means capable of receiving a signal from a purchaser or outputting various information to the outside. In detail, the input/output unit 120 includes an input unit 121 that can receive various input signals, such as payment signals, from a user, and an output unit 122 that can input various information to the outside, and additionally transmit a warning to the outside. ) may be included. Here, the input unit 121 and the output unit 122 may include a generally used touch display and a speaker. That is, it is possible to output audio as well as images and images to the outside.

In addition, the output unit 122 of the input/output unit 120 manages the average weight change value calculated through the weight calculation unit 114 of the product storage unit 110 and the photographed image recognized by the image recognition unit 115 as a management server. When it is compared in the unit 140 and it is determined that the comparison result is in an abnormal state, a warning may be sent to the outside. For example, in an abnormal state, the output unit 122 may output a warning sound to the outside or output a warning image or a warning image to the outside so that the user can recognize it. The step of the output unit 122 outputting a warning image or a warning image or a warning signal to the outside will be described in detail later.

The payment unit 130 is a means capable of recognizing the user's payment method information, determining whether the corresponding payment method is normal, and performing payment with the recognized payment method for the product selected by the user. In detail, the payment unit 130 may further include a payment method recognition unit 131 that recognizes the user's payment method and determines whether the payment method is normal. The payment method recognition unit 131 may be used as a means to determine whether the user's payment method is normal and to identify the user when consenting to the provision of personal information.

The management server unit 140 may determine whether the stock of the product in the product storage unit 110 is normal, that is, whether the fraud or theft has been made. The management server unit 140 properly transports the product for payment based on the weight change value calculated by the storage unit 141 and the weight calculation unit 114 in which the unit weight value for the product and the photographed image value are stored. Weight determination unit 142 for determining whether or not the image recognition unit 115 based on the photographed image recognized by the image determination unit 143, weight determination unit ( 142) and the image determination unit 143, when it is determined that the product sales are abnormally sold, the warning signal generation unit 144 that can generate a warning signal, and the notification transmission unit 145 that can transmit a notification to the manager terminal in the setting situation. may include.

The weight determination unit 142 may determine whether the product is normally sold by comparing the weight change value calculated by the weight calculation unit 114 with a prestored unit weight value for each product. In detail, the weight determination unit 142 may determine whether the weight change value corresponds to a multiple value of the unit weight value for each product stored in advance, that is, a multiple value for the quantity of the product, and if it falls within an error range, the product is sold normally. It can be judged that Conversely, when the weight change value is out of the error range of the double value of the unit weight value for each product, the weight determination unit 142 determines an abnormal situation in the product, for example, whether the inside of the product is empty or the shelf unit 113. It may be determined that a product with a different weight than the specified product is seated. A detailed operation for this will be described later.

In addition, when the product is sold normally, the weight determination unit 142 transmits a normal sales signal to the payment unit 130 so that payment is made, and on the contrary, when the product is sold abnormally, the abnormal sales signal is sent to the warning signal generating unit ( 144) can be sent.

The image determination unit 143 may determine whether the product is normally sold by comparing the photographed images taken from the image recognition unit 115 . In detail, the image determination unit 143 may determine whether the product is normally determined by comparing the first photographed image and the second photographed image photographed by the image recognition unit 115 . As a result of comparing the first photographed image and the second photographed image, if there is no image change or an image is detected in which some products are taken out while maintaining the photographed image, the product can be sold as normally sold, and vice versa. 113), if an image for a product other than the photographed image is detected, it may be determined that the product has been sold abnormally.

In addition, when the product is sold normally, the image determination unit 143 transmits a normal sales signal to the payment unit 130 so that payment is made, and on the contrary, when the product is sold abnormally, the abnormal sales signal is sent to the warning signal generating unit ( 144) can be sent.

The warning signal generating unit 144 is a means capable of generating a warning signal upon receiving an abnormal sale signal from the weight determining unit 142 and the image determining unit 143 . In detail, the warning signal generating unit 144 generates a warning signal so that the input/output unit 120 outputs one or more of a warning sound, a warning image, and a warning image when receiving an abnormal sales signal, and transmits the warning signal to the input/output unit 120 . can

In addition, the warning signal generating unit 144 opens the door when the door unit 112 opens the case unit 111 for more than a set time, that is, when the storage space of the product storage unit 110 is maintained in an open state. A signal may be received from the product storage unit 110 and a warning may be transmitted to the outside.

The notification sending unit 145 is a means for transmitting a notification to the manager terminal if necessary when a warning signal is generated by the warning signal generating unit 144 . In detail, the warning signal generated by the warning signal generating unit 144 is transmitted through the input/output unit 120, but the notification transmitting unit 145 generates the corresponding warning signal and sends the corresponding warning to the manager terminal at the same time as the input/output unit 120. It is possible to send a notification to inform that the output is through. Through this, the administrator can check in real time that the warning transmission system 100 has been operated.

Below, the basic operation of the unmanned vending machine will be first described before explaining the operation of the warning sending system 100 of the unmanned vending machine according to the embodiment of the present invention.

When a user recognizes a payment method through the payment method recognition unit 131 in order to purchase a product from the unmanned vending machine, the payment method recognition unit 131 may determine whether the payment method is normal. Here, if it is determined that the payment method is normal, the locking unit may perform an unlocking operation so that the door unit 112 can open the product storage unit 110 . When the unlocking operation is performed, the weight calculation unit 114 may measure the primary weight value for each shelf unit 113 , and at the same time, the image recognition unit 115 may recognize the first photographed image for each shelf unit 113 . have.

When the user takes out the desired product and closes the door unit 112 to close the product storage unit 110 , the weight calculation unit 114 can measure the secondary weight value for each shelf unit 113 and at the same time the image recognition unit 115 may recognize the second photographed image for each shelf 113 .

The weight determination unit 142 of the management server unit 140 determines whether the difference between the secondary weight value and the primary weight value calculated by the weight calculation unit 114 corresponds to a multiple value of a preset product (of course, the error range) can be determined), and in addition, the image determination unit 143 can compare the second photographed image and the first photographed image recognized by the image recognition unit 115, thereby determining the number of products sold and sold. can be checked In addition, the final payment amount may be determined by using the calculated unit price and the number of products to be sold for each type of sale product.

Thereafter, the payment unit 130 may perform a payment for the final payment amount based on the payment method recognized by the payment method recognition unit 131 , and when the payment is completed, the locking unit is the door unit 112 and the product receiving unit. A lock setting operation may be performed to close the 110 .

Hereinafter, the operation of the warning sending system 100 of the unmanned vending machine according to the embodiment of the present invention will be described in detail. The method in which the warning sending system 100 of the unmanned vending machine sends a warning is largely (A) when the door part 112 is opened for a set time to elapse, (B) the product stored inside the product storage part 110 When the weight information of the product is wrong, (C) when the image information of the product stored inside the product storage unit 110 is wrong, (D) when the recognized payment method is abnormal, (E) when the shelf unit 113 is It may be divided into five types, such as a case where the weight calculation unit 114 cannot calculate the weight because there is no seated product. Each step will be described in detail below. In all steps, the input/output unit 120 outputs one or more of a warning sound, a warning image, and a warning image to the outside, and at the same time, the notification transmitter 145 can transmit a notification for a warning to the manager terminal.

FIG. 4 is a flowchart showing the step of sending a warning by the unmanned vending machine according to an embodiment of the present invention, and FIG. 5 is a flowchart showing the step of sending a warning by the unmanned vending machine according to another embodiment of the present invention. Steps (A) to (D) will be described with reference to FIG. 4 , and steps (E) will be described with reference to FIG. 5 .

(A) When the door part 112 is opened for the set time to elapse

First, when the user recognizes the payment unit 130 through the payment method recognition unit 131 and it is determined that the payment method is normal, the lock unit is in a state in which the door unit 112 can open the product storage unit 110 . To maintain, that is, the door unit 112 may be operated in an unlocked state. In this state, when the set time elapses with the user opening the door unit 112 , the door sensor detects this and transmits a door opening signal from the product storage unit 110 to the management server unit 140 .

When the warning signal generating unit 144 of the management server unit 140 receives the door open signal, it may generate a warning signal for outputting a warning sound and a warning screen in response thereto, and the generated warning signal is input/output unit 120 . can be sent to When a warning signal is transmitted, the input/output unit 120 may output a warning sound to the outside and at least one of a warning image and a warning sound to the outside. For example, as a warning sound, a corresponding phrase may be output through the display together with a notification saying 'Please close the door', and if a separate warning light is disposed in the input/output unit 120, the corresponding warning light may operate. have.

Also, the controller may control the power unit to rotate the door unit 112 so that the door unit 112 forcibly closes the case unit 111 . Through this, when the door unit 112 is opened for too long, the door unit 112 is automatically closed for the normal operation of the unmanned vending machine, thereby preventing loss of cold air or loss of goods.

(B) When the weight information of the product stored inside the product storage unit 110 is incorrect

When the user recognizes the payment unit 130 through the payment method recognition unit 131 and it is determined that the payment method is normal, the lock unit maintains the door unit 112 in a state in which the product storage unit 110 can be opened. It can operate in an unlocked state. In this state, when the user opens the door unit 112 to take out the product stored in the storage space and takes out or removes only a portion of the contents, for example, in the case of ingesting a drink and re-introducing the empty bottle inside the shelf unit A case in which an unspecified product is seated in (113) and the weight of the product is different from the designated product to be seated on the shelf unit 113 will be described.

In this case, the weight calculation unit 114 may measure the first and second weight values for each shelf unit 113 and calculate a weight change value by using them, and the image recognition unit 115 also includes the shelf unit ( 113) It is possible to recognize the first photographed image and the second photographed image of each star. If this is the case, the image determination unit 143 of the management server unit 140 may determine that the product remains intact even if the first photographed image and the second photographed image are compared on the shelf unit 113 . .

However, the weight determination unit 142 determines whether the weight change value calculated from the weight calculation unit 114 corresponds to a multiple of the unit weight for each product stored in advance. As , the weight change value does not correspond to a multiple of the unit weight of each product stored in advance. Accordingly, the weight determination unit 142 may transmit the abnormal sales signal to the warning signal generation unit 144 , and the warning signal generation unit 144 receiving the warning signal generation unit 144 generates a warning signal through the input/output unit 120 . A warning can be printed.

In this case, the weight calculation unit 114 and the weight determination unit 142 may be repeatedly operated at least twice or more in order to minimize the measurement error of the weight change value. That is, the calculation of the weight change value of the weight calculation unit 114 and whether the calculated weight change value of the weight determination unit 142 corresponds to a multiple of the unit weight for each product may be repeatedly operated two or more times.

When a warning signal is transmitted, the input/output unit 120 may output a warning sound to the outside and at least one of a warning image and a warning sound to the outside. For example, as a warning sound, a corresponding phrase may be output through the display along with a notification 'Open the door and purchase normally', and if a separate warning light is disposed in the input/output unit 120, the corresponding warning light operates can do.

(C) When the image information of the product stored inside the product storage unit 110 is incorrect

In addition, when a product other than the designated product is seated on the shelf unit 113 such as when the user changes the position of the stored product for each shelf unit 113 or places other items on the shelf unit 113 , in general, First, an abnormal sales signal is generated by the weight determination unit 142 of the management server unit 140 so that the warning signal generation unit 144 may generate a warning signal.

However, when another product other than the designated product is placed on the shelf unit 113, but the other product has the same weight value as the designated product (including the case where the weight difference between the designated product and the other product is within the error range), the weight determination unit Through (142), there is a possibility that it can be confirmed as a normal sales signal.

However, in this case, the image recognition unit 115 of the product storage unit 110 and the image determination unit 143 of the management server unit 140 compare and determine the photographed images of the shelf unit 113 to generate an abnormal sales signal. can be In detail, the image determination unit 143 of the management server unit 140 sets the first photographed image taken before the door unit 112 is opened in the image recognition unit 115 and the second photographed image photographed after the door unit 112 is closed. In comparison, if the weight determination unit 142 determines that there is no weight change value, but the image determination unit 143 determines that the photographed image is changed, the image determination unit 143 may generate an abnormal sales signal. Accordingly, the warning signal generating unit 144 may receive the abnormal sales signal to generate a warning signal and output a warning through the input/output unit 120 .

In this case, the image recognition unit 115 and the image determination unit 143 may be repeatedly operated at least twice or more in order to minimize a comparison error between the captured images. That is, the recognition of the photographed image of the image recognition unit 115 and the calculation of the result of comparison and determination of the photographed image by the image determination unit 143 may be repeatedly operated.

(D) If the payment method is abnormal

When the payment method of the user is abnormal, such as when the user's payment method is a stolen card or the limit is exceeded, that is, when the payment method recognition unit 131 determines that the recognized payment method is abnormal, the payment method recognition unit 131 is An abnormal payment means signal may be transmitted to the warning signal generator 144 .

The warning signal generating unit 144 that has received the abnormal payment means signal may generate a warning signal and output a warning to the outside through the input/output unit 120 . In this case, the input/output unit 120 may output a notification that the payment means is not a normal card to the outside, and if necessary, for example, if the card is a stolen card, by voice output, 'corresponding card is a stolen card' warning sound can be output to the outside.

(E) If there is no product stock in the product storage unit 110

When the unmanned vending machine is in operation, the weight calculator 114 may repeatedly calculate a third weight value, which is a weight value for each shelf unit 113 , based on the set weight calculation time. When the calculated third weight value is less than or equal to the set weight value, it is determined that there is no stock of the product on the shelf unit 113 of the product storage unit 110 , and an abnormal sales signal may be generated.

A warning may be output from the input/output unit 120 by the warning signal generating unit 144 and the notification generating unit receiving the generated abnormal sales signal, and a notification may be transmitted to the manager terminal.

According to the warning sending system 100 of the unmanned vending machine according to the embodiment of the present invention having the above configuration, the following effects are obtained.

First, for security or theft, which is the biggest weakness of the unmanned sales system, whether the product was sold properly based on the weight measured and the recognized image in the product storage unit 110, or the product disappears in an abnormal way such as theft or defrauding You can determine whether it has changed.

In particular, there is an effect that can effectively prevent product theft in various ways, such as when the weight of the product is changed to another product with the same weight, or when the product is changed to a product with a different weight by using both the weight-based and the image-based. For example, in the case of milk having the same container and contents as a whole, it is possible to check whether the product has been changed using the image basis, and if the milk is only partially consumed and then re-stored in the product storage unit 110, the weight The basis can be used to confirm that the product is in an abnormal state.

In addition, by outputting a warning sound and a warning image at the same time, not only the person concerned but also other users can recognize that theft or defrauding has occurred, thereby effectively preventing abnormal sales methods.

By efficiently utilizing the theft prevention function, which is the biggest weakness of the unmanned sales system, it is possible to reduce labor costs and management costs for store operation, and also has the effect of efficiently managing inventory and sales of the store.

So far, preferred embodiments of the present invention have been mainly looked at. Those of ordinary skill in the art to which the present invention pertains will understand that the present invention can be implemented in a modified form without departing from the essential characteristics of the present invention. Therefore, the disclosed embodiments are to be considered in an illustrative rather than a restrictive sense. The scope of the present invention is indicated in the claims rather than the foregoing description, and all differences within the scope equivalent thereto should be construed as being included in the present invention.

100: warning transmission system 110: product storage unit
111: case part 112: door part
113: shelf unit 114: weight calculation unit
114a: weight sensor 114b: weight integrated part
115: image recognition unit 116: lock unit
120: input/output unit 121: input unit
122: output unit 130: payment unit
131: payment method recognition unit 140: management server unit
141: storage unit 142: weight determination unit
143: image judgment unit 144: warning signal generation unit
145: notification transmitter

Claims (7)

A door unit for opening and closing the storage space, one or more shelf units disposed in the storage space, a door sensor for determining whether the storage space of the door unit is opened or closed, and the shelf unit for opening or closing the door unit or at a set weight calculation time interval a product storage unit including a weight calculation unit for calculating a weight change value of the product seated on the shelf and an image recognition unit for recognizing a photographed image of the product seated on the shelf;
an input/output unit for receiving a user's signal and outputting at least one of audio, video, and image to the outside;
a payment unit configured to pay for the product taken out from the product storage unit as a user's payment method; and
and a controller for determining whether the weight change value corresponds to a multiple of a preset product unit weight, and controlling the input/output unit,
The weight calculation unit,
When the door part is opened, a first weight value of the product seated on the shelf is measured, and when the door part is closed, a second weight value of the product seated on the shelf is measured, and the first weight value and the first weight value are measured. 2 Calculate the weight change value through the difference value of the weight value,
Repeatingly based on the weight calculation time calculates a third weight value, which is a weight value for each shelf,
The image recognition unit,
When the door part is opened, the first photographed image of the product seated on the shelf is recognized, and when the door part is closed, the second photographed image of the product seated on the shelf is recognized,
The control unit is
If the weight change value does not correspond to a multiple of the product unit weight, or when a product not recognized in the first photographed image is recognized in the second photographed image by comparing the first photographed image and the second photographed image Judging that the product has not been discharged normally,
If it is determined that the third weight value is less than or equal to the set weight value, it is determined that the stock of the product is insufficient or abnormal,
and outputting at least one of a warning sound, a warning image, and a warning image to the outside by controlling the input/output unit to determine whether the product is normally discharged and whether the product is out of stock.
delete delete delete The method of claim 1,
When the door sensor determines that the door unit has opened the storage space for more than a set time,
and the control unit controls the input/output unit to output at least one of a warning sound, a warning image, and a warning image to the outside.
6. The method of claim 5,
Further comprising a power unit providing power to rotate the door unit so that the door unit closes the storage space,
and when the door sensor determines that the door unit has opened the storage space for more than a set time, the power unit rotates the door unit to control the door unit to close the storage space.
7. The method of any one of claims 1, 5 to 6,
Further comprising a payment means recognition unit for recognizing the payment means to determine whether the payment means is normal,
When the payment method recognition unit determines that the payment method is an abnormal payment method, the control unit controls the input/output unit to output at least one of a warning sound, a warning image, and a warning image to the outside. .

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