本說明書提供了一種無人零售設備和退款方法及其設備，可以自動核實卡貨的情況，並實現快速的自動退款。
本申請揭露了一種退款方法，包括：
無人零售設備在被購商品出貨之前，使用重量感測裝置對當前庫存商品進行稱重，得到第一重量；
通過輸入裝置接收到退款信號時，使用所述重量感測裝置對當前庫存商品再次進行稱重，得到第二重量；
如果所述第一重量和所述第二重量的重量差值小於臨限值，則發起退款流程。
在一個較佳實施例中，所述使用重量感測裝置對當前庫存商品進行稱重，和所述使用所述重量感測裝置對當前庫存商品再次進行稱重的步驟中，分別使用所述重量感測裝置對所述被購商品所在的貨道中的當前庫存商品進行稱重。
在一個較佳實施例中，所述重量感測器被設置在所述貨道中。
在一個較佳實施例中，所述無人零售設備具備多個貨道，所述無人零售設備中預先設置有貨道和臨限值的對應關係；
所述如果所述第一重量和所述第二重量的重量差值小於臨限值，則發起退款流程，進一步包括：根據所述被購商品所在的貨道查詢所述對應關係，獲得該貨道對應的臨限值；如果所述第一重量和所述第二重量的重量差值小於所獲得的臨限值，則發起退款流程。
在一個較佳實施例中，所述無人零售設備中預先設置有商品類型和臨限值的對應關係；
所述如果所述第一重量和所述第二重量的重量差值小於臨限值，則發起退款流程，進一步包括：根據所述被購商品的商品類型查詢所述對應關係，獲得所述被購商品的商品類型所對應的臨限值；如果所述第一重量和所述第二重量的重量差值小於所獲得的臨限值，則發起退款流程。
在一個較佳實施例中，所述臨限值小於所述無人零售設備中重量最輕的單件商品的重量。
在一個較佳實施例中，所述無人零售設備在被購商品出貨之前，使用重量感測裝置對當前庫存商品進行稱重，得到第一重量，進一步包括：
所述無人零售設備在所述被購商品的訂單被確認後使用重量感測裝置對當前庫存商品進行稱重以得到所述第一重量。
在一個較佳實施例中，所述退款流程進一步包括：
所述無人零售設備發送退款指令給商家業務系統，該退款指令包括交易訂單號；
所述商家業務系統回應於所述退款指令，根據所述交易訂單號獲取對應的交易金額和付款帳號；
所述商家業務系統向收單受理系統發送退款申請，其中包括所述交易訂單號，所述交易金額和所述付款帳號；
所述收單受理系統回應於所述退款申請，根據所述交易訂單號和所述交易金額向所述付款帳號發起退款。
在一個較佳實施例中，所述根據所述交易訂單號和所述交易金額向所述付款帳號發起退款之後，還包括：
如果退款成功，所述收單受理系統向所述商家業務系統發送通知退款成功的消息；所述商家業務系統向所述無人零售設備發送通知退款成功的消息；所述無人零售設備將退款結果顯示在顯示螢幕上。
在一個較佳實施例中，如果所述第一重量和所述第二重量的重量差值大於所述臨限值，則所述無人零售設備在顯示螢幕上顯示表示無法立即退款的資訊。
本申請還揭露了一種無人零售設備包括：
重量感測裝置，用於對當前庫存商品進行稱重；
輸入裝置；
通訊裝置；
控制裝置，用於在被購商品出貨之前，控制所述重量感測裝置對當前庫存商品進行稱重，得到第一重量；在通過輸入裝置接收到退款信號時，控制所述重量感測裝置對當前庫存商品再次進行稱重，得到第二重量；如果所述第一重量和所述第二重量的重量差值小於臨限值，則控制所述通訊裝置向外部系統發送退款指令。
在一個較佳實施例中，所述無人零售設備包括至少一個貨道，所述貨道用於存放商品；
所述重量感測器被設置在所述貨道中，用於對所述貨道中的當前庫存商品進行稱重。
在一個較佳實施例中，所述無人零售設備具備多個貨道；
所述無人零售設備還包括記憶體，其中儲存有貨道和臨限值的對應關係；
所述控制裝置根據所述被購商品所在的貨道查詢所述對應關係，得到用於和所述重量差值相比較的所述臨限值。
在一個較佳實施例中，所述無人零售設備還包括記憶體，其中儲存有商品類型和臨限值的對應關係；
所述控制裝置根據所述被購商品的商品類型查詢所述對應關係，得到用於和所述重量差值相比較的所述臨限值。
在一個較佳實施例中，所述臨限值小於所述無人零售設備中重量最輕的單件商品的重量。
在一個較佳實施例中，所述無人零售設備還包括顯示螢幕；
所述控制裝置在判定所述重量差值大於所述臨限值時在所述顯示螢幕上顯示表示無法立即退款的資訊。
在一個較佳實施例中，所述控制裝置在所述被購商品的訂單確認後控制所述重量感測裝置對當前庫存商品進行稱重以得到所述第一重量。
本申請還揭露了一種退款系統包括：
如上文所述的無人零售設備，該無人零售設備所發送的退款指令包括交易訂單號；
商家業務系統，用於回應於所述退款指令，根據所述交易訂單號獲取對應的交易金額和付款帳號，向收單受理系統發送退款申請，其中包括所述交易訂單號，所述交易金額和所述付款帳號；
所述收單受理系統，用於回應於所述退款申請，根據所述交易訂單號和所述交易金額向所述付款帳號發起退款。
在一個較佳實施例中，
所述收單受理系統還用於在退款成功時向所述商家業務系統發送通知退款成功的消息；
所述商家業務系統還用於向所述無人零售設備發送通知退款成功的消息；
所述無人零售設備還用於將退款結果顯示在顯示螢幕上。
本說明書實施方式中，通過引入重量檢測識別機制，可以自動核實卡貨的情況，用戶可以在無人零售設備上一鍵完成退款，無需電話客服人員進行反饋，極大地簡化了用戶的退款流程，提升了用戶的消費體驗；商家則可以減少相應崗位的人員配置，縮減運營成本，提升企業運營效率。
可以為每一種商品設定不同的臨限值，根據被購商品的種類確定臨限值，來判斷兩次測量的重量差值是否小於臨限值。這樣就可以自我調整地實現不同商品的不同臨限值，提高了重量差異判斷的精度，尤其對於同一個貨道上可能同時放置重量不同的多種商品的情況，可以有效避免相對誤差對判斷準確性的影響。
本說明書中記載了大量的技術特徵，分佈在各個技術方案中，如果要羅列出本申請所有可能的技術特徵的組合(即技術方案)的話，會使得說明書過於冗長。為了避免這個問題，本說明書上述發明內容中揭露的各個技術特徵、在下文各個實施方式和例子中揭露的各技術特徵、以及圖式中揭露的各個技術特徵，都可以自由地互相組合，從而構成各種新的技術方案(這些技術方案均應該視為在本說明書中已經記載)，除非這種技術特徵的組合在技術上是不可行的。例如，在一個例子中揭露了特徵A+B+C，在另一個例子中揭露了特徵A+B+D+E，而特徵C和D是起到相同作用的等同技術手段，技術上只要擇一使用即可，不可能同時採用，特徵E技術上可以與特徵C相組合，則，A+B+C+D的方案因技術不可行而應當不被視為已經記載，而A+B+C+E的方案應當視為已經被記載。This manual provides an unmanned retail device, a refund method and the device, which can automatically verify the situation of the stuck goods and realize fast automatic refund.
This application discloses a refund method, including:
Before the purchased goods are shipped, the unmanned retail equipment uses the weight sensing device to weigh the current inventory goods to obtain the first weight;
When receiving the refund signal through the input device, use the weight sensing device to weigh the current inventory product again to obtain the second weight;
If the weight difference between the first weight and the second weight is less than a threshold value, a refund process is initiated.
In a preferred embodiment, in the step of using the weight sensing device to weigh the current inventory commodity and the step of using the weight sensing device to weigh the current inventory commodity again, the weight is used respectively The sensing device weighs the current inventory commodities in the goods lane where the purchased commodities are located.
In a preferred embodiment, the weight sensor is arranged in the cargo lane.
In a preferred embodiment, the unmanned retail equipment is equipped with multiple cargo lanes, and the corresponding relationship between cargo lanes and threshold values is preset in the unmanned retail equipment;
If the weight difference between the first weight and the second weight is less than a threshold value, then initiating a refund process further includes: querying the corresponding relationship according to the aisle where the purchased product is located, and obtaining the The threshold value corresponding to the cargo lane; if the weight difference between the first weight and the second weight is less than the obtained threshold value, a refund process is initiated.
In a preferred embodiment, the correspondence between commodity types and threshold values is preset in the unmanned retail equipment;
If the weight difference between the first weight and the second weight is less than a threshold value, then initiating a refund process further includes: querying the corresponding relationship according to the product type of the purchased product, and obtaining the The threshold value corresponding to the product type of the purchased product; if the weight difference between the first weight and the second weight is less than the obtained threshold value, a refund process is initiated.
In a preferred embodiment, the threshold value is smaller than the weight of the lightest single commodity in the unmanned retail equipment.
In a preferred embodiment, before the purchased commodity is shipped, the unmanned retail device uses a weight sensing device to weigh the current inventory commodity to obtain the first weight, further comprising:
After the order of the purchased commodity is confirmed, the unmanned retail device uses a weight sensing device to weigh the current inventory commodity to obtain the first weight.
In a preferred embodiment, the refund process further includes:
The unmanned retail device sends a refund instruction to the business system of the merchant, and the refund instruction includes a transaction order number;
The business system of the merchant responds to the refund instruction, and obtains the corresponding transaction amount and payment account number according to the transaction order number;
The merchant business system sends a refund application to the acquiring system, which includes the transaction order number, the transaction amount and the payment account number;
In response to the refund application, the acquiring system initiates a refund to the payment account according to the transaction order number and the transaction amount.
In a preferred embodiment, after the refund is initiated to the payment account according to the transaction order number and the transaction amount, it further includes:
If the refund is successful, the acquiring system will send a message to the merchant business system to notify the refund success; the merchant business system will send a message to the unmanned retail device to notify the refund success; the unmanned retail device will The refund result is shown on the display screen.
In a preferred embodiment, if the weight difference between the first weight and the second weight is greater than the threshold value, the unmanned retail device displays a message on the display screen indicating that no refund can be made immediately.
The application also discloses a kind of unmanned retail equipment including:
Weight sensing device for weighing the current inventory;
input device;
communication device;
The control device is used to control the weight sensing device to weigh the current inventory product before the purchased product is shipped to obtain the first weight; when a refund signal is received through the input device, control the weight sensing device The device weighs the current inventory product again to obtain a second weight; if the weight difference between the first weight and the second weight is less than a threshold value, the communication device is controlled to send a refund instruction to an external system.
In a preferred embodiment, the unmanned retail equipment includes at least one cargo lane, and the cargo lane is used to store commodities;
The weight sensor is arranged in the cargo lane, and is used for weighing the current inventory commodities in the cargo lane.
In a preferred embodiment, the unmanned retail equipment has multiple aisles;
The unmanned retail equipment also includes a memory, which stores the corresponding relationship between the goods lane and the threshold value;
The control device queries the corresponding relationship according to the aisle where the purchased commodity is located, and obtains the threshold value for comparison with the weight difference.
In a preferred embodiment, the unmanned retail device further includes a memory, in which the correspondence between commodity types and threshold values is stored;
The control device queries the corresponding relationship according to the commodity type of the purchased commodity, and obtains the threshold value for comparison with the weight difference.
In a preferred embodiment, the threshold value is smaller than the weight of the lightest single commodity in the unmanned retail equipment.
In a preferred embodiment, the unmanned retail equipment also includes a display screen;
When the control device determines that the weight difference is greater than the threshold value, it displays information on the display screen indicating that no refund can be made immediately.
In a preferred embodiment, after the order of the purchased commodity is confirmed, the control device controls the weight sensing device to weigh the current commodity in stock to obtain the first weight.
The application also discloses a refund system comprising:
As for the unmanned retail device mentioned above, the refund instruction sent by the unmanned retail device includes the transaction order number;
The merchant business system is used to respond to the refund instruction, obtain the corresponding transaction amount and payment account number according to the transaction order number, and send a refund application to the acquiring system, which includes the transaction order number, the transaction the amount and said payment account number;
The acquiring acceptance system is configured to initiate a refund to the payment account according to the transaction order number and the transaction amount in response to the refund application.
In a preferred embodiment,
The receiving system is also used to send a message to the merchant business system to notify the successful refund when the refund is successful;
The business system of the merchant is also used to send a message notifying the success of the refund to the unmanned retail device;
The unmanned retail equipment is also used to display the refund result on the display screen.
In the implementation of this manual, by introducing the weight detection and identification mechanism, the situation of the stuck goods can be automatically verified, and the user can complete the refund with one click on the unmanned retail device, without the need for feedback from the telephone customer service personnel, which greatly simplifies the refund process for the user , which improves the user's consumption experience; merchants can reduce the staffing of corresponding positions, reduce operating costs, and improve enterprise operating efficiency.
Different threshold values can be set for each commodity, and the threshold value can be determined according to the type of purchased commodity to judge whether the weight difference between two measurements is less than the threshold value. In this way, different thresholds for different commodities can be realized by self-adjustment, and the accuracy of judging weight differences can be improved. Especially for the situation where multiple commodities with different weights may be placed on the same cargo lane at the same time, it can effectively avoid the relative error from affecting the judgment accuracy. Influence.
A large number of technical features are recorded in this specification, which are distributed in various technical solutions. If it is necessary to list all possible combinations of technical features (ie, technical solutions) of this application, the specification will be too lengthy. In order to avoid this problem, the various technical features disclosed in the above-mentioned summary of the invention in this specification, the various technical features disclosed in the following embodiments and examples, and the various technical features disclosed in the drawings can be freely combined with each other to form a Various new technical solutions (these technical solutions should be deemed to have been recorded in this specification), unless the combination of such technical features is technically infeasible. For example, feature A+B+C is disclosed in one example, and feature A+B+D+E is disclosed in another example, and features C and D are equivalent technical means that play the same role. It can be used as soon as it is used, and it is impossible to use it at the same time. Feature E can be combined with feature C technically. Then, the solution of A+B+C+D should not be regarded as recorded because it is technically infeasible, and A+B+ The C+E scheme should be considered as documented.
在以下的敘述中，為了使讀者更好地理解本申請而提出了許多技術細節。但是，本領域的普通技術人員可以理解，即使沒有這些技術細節和基於以下各實施方式的種種變化和修改，也可以實現本申請所要求保護的技術方案。
部分概念的說明：
對應關係：指兩個或更多資料之間相對應的關係，通常保存在儲存設備(如儲存伺服器、硬碟、記憶體等)，具體的儲存形式可以是多種多樣的，例如，可以是一個表示對應關係的檔，也可以是資料庫中的一個表，等等。
無人零售設備，無需人員值守就可以完成商品挑選、收費和出售的自動化設備。在一些應用場景中也可以被稱為自動售貨機，無人零售櫃等。無人零售設備不受時間、地點的限制，能節省人力、方便交易。有些無人零售設備包括一個或多個貨道，每個貨道用於擺放要出售的商品，在一個商品被購買時，通常一個貨道的最前端的商品會被推出貨道，滑落到取物視窗，用戶可以直接打開取物視窗拿到商品。一個貨道可以只擺放一種商品，也可以混合擺放多種商品。
下面將結合圖式對本說明書的實施方式作進一步地詳細描述。
本說明書的第一實施方式涉及一種退款方法，其流程如圖1所示，該方法包括以下步驟：
在步驟102中，無人零售設備在被購商品出貨之前，使用重量感測裝置對當前庫存商品進行稱重，得到第一重量。觸發這一次稱重的時機可以有多種。可選地，無人零售設備在訂單確認後使用重量感測裝置對當前庫存商品進行稱重以得到第一重量。可選地，可以在每次出貨後進行稱重，保存該重量，在下一次出貨時作為第一重量。
此後進入步驟104，無人零售設備通過輸入裝置接收到退款信號時，使用重量感測裝置對當前庫存商品再次進行稱重，得到第二重量。輸入裝置可以是觸控式螢幕，物理按鍵，鍵盤等。退款信號是代表用戶要求退款的信號，例如用戶可以通過觸控式螢幕點擊要求退款的圖示而發出該退款信號。
在一個實施例中，無人零售設備中的商品被放置在一個或多個貨道上，步驟102和步驟104中的兩次稱重都是對被購商品出貨前所在的貨道進行的。例如，無人零售設備有8個貨道，每個貨道放置一種商品。被購商品在出貨前被放置在第7貨道上，那麼兩次稱重只要對第7貨道進行就可以了。可選地，重量感測器被設置在貨道中。每個貨道可以設置一個重量感測器。
此後進入步驟106，無人零售設備判斷第一重量和第二重量的重量差值是否小於臨限值，如果是則進入步驟110，否則進入步驟108。
臨限值的確定有多種方式。具體地說：
可選地，可以為所有的商品預先設定一個統一的臨限值，而且該臨限值小於無人零售設備中重量最輕的單件商品的重量。例如一個無人零售設備中有十幾種商品，單件商品的重量在50克至400克之間，可以將臨限值設定為20克或30克。臨限值太小的話容易因為測量誤差而產生誤判，例如商品卡貨了，兩次測量的重量應該相等，但因為測量誤差比較大，而臨限值又太小，導致被誤判為商品已經順利出貨。一般而言，臨限值不應該小於可能的測量誤差範圍。臨限值太大的話也會因為測量誤差導致誤判，例如對一些較輕的商品，已經順利出貨了，但是該商品太輕，該商品的重量受測量誤差影響後沒有超過臨限值，從而被誤判為卡貨。
可選地，無人零售設備具備多個貨道，無人零售設備中預先設置有貨道和臨限值的對應關係，或者說每個貨道可以設置一個對應的臨限值，各個貨道對應的臨限值可以相同也可以不同。各個貨道對應的臨限值可以和該貨道中放置的商品類型有關，如果是單件商品比較重的情況，例如飲料，可以設置比較大的臨限值。如果是單件商品比較輕的情況，例如薯片，可以設置比較小的臨限值。在需要將重量差值和臨限值比較時，可以根據被購商品所在的貨道查詢上述對應關係，獲得該貨道對應的臨限值，使用該臨限值和重量差值相比較，來確定是否發起退款。
可選地，無人零售設備中預先設置有商品類型和臨限值的對應關係，或者說每一種商品可以設置一個對應的臨限值，各種商品對應的臨限值通常與該商品的單件重量有關，原則上單件商品越重，該商品的商品類型對應的臨限值越高。每個商品類型中單件商品的重量無人零售設備中是可以預先設置的，在一個實施例中，臨限值可以設置為單件商品重量的一個比例，例如40%。在需要將重量差值和臨限值比較時，可以根據被購商品的商品類型查詢查詢上述對應關係，獲得該商品類型對應的臨限值，使用該臨限值和重量差值相比較，來確定是否發起退款。這樣就可以自我調整地實現不同商品的不同臨限值，提高了重量差異判斷的精度，尤其對於同一個貨道上可能同時放置重量不同的多種商品的情況，可以有效避免相對誤差對判斷準確性的影響。
在步驟108中，無人零售設備在顯示螢幕上顯示表示無法立即退款的資訊。其中可以包括人工處理退款的聯繫方式，供用戶走人工退款的途徑。
在步驟110中，無人零售設備發起退款流程。
在一個實施例中，退款流程進一步包括：
無人零售設備發送退款指令給商家業務系統，該退款指令包括交易訂單號。
商家業務系統回應於退款指令，根據交易訂單號獲取對應的交易金額和付款帳號。
商家業務系統向收單受理系統發送退款申請，其中包括交易訂單號，交易金額和付款帳號。
收單受理系統回應於退款申請，根據交易訂單號和交易金額向付款帳號發起退款。
如果退款成功，收單受理系統向商家業務系統發送通知退款成功的消息。商家業務系統向無人零售設備發送通知退款成功的消息。無人零售設備將退款結果顯示在顯示螢幕上。
如果退款失敗，收單受理系統可以向商家業務系統發送退款失敗消息，商家業務系統再向無人零售設備發送通知退款失敗消息，無人零售設備將退款失敗的結果顯示在顯示螢幕上。
本實施方式通過引入重量檢測識別機制，可以自動核實卡貨的情況，用戶可以在無人零售設備上一鍵完成退款，無需電話客服人員進行反饋，極大地簡化了用戶的退款流程，提升了用戶的消費體驗；商家則可以減少相應崗位的人員配置，縮減運營成本，提升企業運營效率。
本說明書的第二實施方式涉及一種無人零售設備，其結構如圖2所示，該無人零售設備包括：
重量感測裝置，用於對當前庫存商品進行稱重。重量感測裝置可以有一個或多個，圖2中示意性地畫了3個，但不限於3個的情況，可以更多或更少。
輸入裝置。輸入裝置可以是觸控式螢幕，物理按鍵，鍵盤等。
通訊裝置。可以是無線通訊模組(例如WIFI模組，4G通訊模組，5G通訊模組等)，也可以是有線通訊模組，例如光纖通訊模組，乙太網通訊模組等。通訊裝置可以與外部系統(例如商家業務系統)進行連接和通訊。
控制裝置，用於在被購商品出貨之前，控制重量感測裝置對當前庫存商品進行稱重，得到第一重量。在通過輸入裝置接收到退款信號時，控制重量感測裝置對當前庫存商品再次進行稱重，得到第二重量。如果第一重量和第二重量的重量差值小於臨限值，則控制通訊裝置向外部系統發送退款指令。控制裝置可以是一個處理器，其功能可以通過運行軟體的方式實現。在一個實施例中，該處理器可以是中央處理單元(Central Processing Unit，簡稱“CPU”)，還可以是其他通用處理器、數位信號處理器(Digital Signal Processor，簡稱“DSP”)、專用積體電路(Application Specific Integrated Circuit，簡稱“ASIC”)等。
控制裝置控制第一次稱重(得到第一重量)的時機可以有多種。可選地，在訂單確認後控制重量感測裝置對當前庫存商品進行稱重以得到第一重量。可選地，可以在每次出貨後進行稱重，保存該重量，在下一次出貨時作為第一重量。
在一個實施例中，無人零售設備包括至少一個貨道，貨道用於存放商品。重量感測器被設置在貨道中，用於對貨道中的當前庫存商品進行稱重。
在一個實施例中，無人零售設備具備多個貨道。無人零售設備還包括記憶體，其中儲存有貨道和臨限值的對應關係。控制裝置根據所述被購商品所在的貨道，通過查詢該對應關係得到臨限值，用於和重量差值相比較。
在一個實施例中，無人零售設備還包括記憶體，其中儲存有商品類型和臨限值的對應關係。控制裝置根據所述被購商品的商品類型，通過查詢該對應關係得到得到臨限值，用於和重量差值相比較。
在一個實施例中，臨限值小於無人零售設備中重量最輕的單件商品的重量。
在一個實施例中，無人零售設備還包括顯示螢幕。控制裝置在判定重量差值大於臨限值時在顯示螢幕上顯示表示無法立即退款的資訊。
第一實施方式是與本實施方式相對應的方法實施方式，第一實施方式中的技術細節可以應用於本實施方式，本實施方式中的技術細節也可以應用於第一實施方式。
本說明書的第三實施方式涉及一種退款系統，其結構如圖2所示，該退款系統包括：
如第二實施方式所描述的無人零售設備，該無人零售設備所發送的退款指令包括交易訂單號。
商家業務系統，用於回應於退款指令，根據交易訂單號獲取對應的交易金額和付款帳號，向收單受理系統發送退款申請，其中包括交易訂單號，交易金額和付款帳號。
收單受理系統，用於回應於退款申請，根據交易訂單號和交易金額向付款帳號發起退款。
在一個實施例中，收單受理系統還用於在退款成功時向商家業務系統發送通知退款成功的消息。商家業務系統還用於向無人零售設備發送通知退款成功的消息。無人零售設備還用於將退款結果顯示在顯示螢幕上。
第一實施方式是與本實施方式相對應的方法實施方式，第一實施方式中的技術細節可以應用於本實施方式，本實施方式中的技術細節也可以應用於第一實施方式
為了能夠更好地理解本說明書的技術方案，下面結合一個具體的例子來進行說明，該例子中羅列的細節主要是為了便於理解，不作為對本申請保護範圍的限制。該例子的流程如圖4所示。
在步驟1：用戶在無人零售櫃上選擇所要購買的商品。無人零售櫃是無人零售設備的一種。
在步驟1.1，此時無人零售櫃通過貨道內置的重量感測裝置，對該商品所在的貨道內的庫存商品進行重量檢測，並將檢測結果(即第一重量)進行儲存。
在步驟2：用戶通過移動支付設備，掃描無人零售櫃上的付款碼，完成付款，並等待出貨。
在步驟2.1，無人零售櫃發生故障，導致商品未出貨。
在步驟3：用戶點擊無人零售櫃上的退款按鈕，在無人零售櫃上對本次交易發起退款申請；
在步驟3.1，無人零售櫃通過貨道內置的重量感測裝置，對該商品所在的貨道內的庫存商品進行重量檢測，並將檢測結果(即第二重量)進行儲存。
在步驟3.1.1，無人零售櫃對最近兩次重量檢測資料(即第一重量和第二重量)進行比較。
在步驟3.1.2，比較結果是重量差異不超過預先設定的誤差臨界值(即臨限值)，則說明發生卡貨。
在步驟3.1.3，無人零售櫃將退款指令傳輸給商家的業務系統，退款指令中包括交易訂單號。
在步驟3.1.3.1，商家業務系統接收到無人零售櫃下達的退款指令後，根據交易訂單號提取出對應的交易金額，付款帳號，以及此筆訂單的收單受理系統資訊；由商家業務系統，向目標收單受理系統發起極速退款申請，包括交易訂單號，退款金額和付款帳號。
在步驟3.1.3.1.1，收單受理系統收到極速退款申請時，直接向用戶發起退款，用戶的退款金額可以即時到帳。
在步驟3.1.3.1.2，收單受理系統發送攜帶退款結果資訊的通知消息到商家的業務系統，通知商家已經完成退款。
在步驟3.1.4，商家業務系統接收到收單受理系統的反饋後，將退款結果推送到無人零售櫃。
在步驟3.2，無人零售櫃通過顯示螢幕向用戶展示退款結果。
在步驟3.1.5，無人零售櫃對最近兩次重量檢測記錄進行識別比對後發現差異超過預先設定的誤差臨界值，說明沒有卡貨，則在步驟3.1.6拒絕用戶的急速退款申請，並在步驟3.1.7通過該顯示螢幕向用戶展示退款失敗的資訊，建議用戶電話諮詢。
上文提到的預先設定的誤差臨界值，可以根據內置在無人零售櫃中的重量感測裝置的敏感度以及該無人零售櫃內所放置的最小單個商品的重量來確定。當檢測儀敏感度較高且單商品重量較大時，可以適當減小誤差臨界值；反之，則可以適當增大。
需要說明的是，本領域技術人員應當理解，上述無人零售設備的實施方式中所示的各模組的實現功能可參照前述退款方法的相關描述而理解。上述無人零售設備的實施方式中所示的控制裝置的功能可通過運行於處理器上的程式(可執行指令)而實現，也可通過具體的邏輯電路而實現。本說明書實施例上述控制裝置如果以軟體功能模組的形式實現，也可以儲存在一個電腦可讀取儲存媒體中。這樣，本說明書實施例不限制於任何特定的硬體和軟體結合。
相應地，本說明書實施方式還提供一種電腦可讀儲存媒體，其中儲存有電腦可執行指令，該電腦可執行指令被處理器執行時實現本說明書的各方法實施方式。電腦可讀儲存媒體包括永久性和非永久性、可移動和非可移動媒體可以由任何方法或技術來實現資訊儲存。資訊可以是電腦可讀指令、資料結構、程式的模組或其他資料。電腦的儲存媒體的例子包括但不限於，相變記憶體(PRAM)、靜態隨機存取記憶體(SRAM)、動態隨機存取記憶體(DRAM)、其他類型的隨機存取記憶體(RAM)、唯讀記憶體(ROM)、電可擦除可程式設計唯讀記憶體(EEPROM)、快閃記憶體或其他記憶體技術、唯讀光碟唯讀記憶體(CD-ROM)、數位多功能光碟(DVD)或其他光學儲存、磁盒式磁帶，磁帶磁磁片儲存或其他磁性儲存設備或任何其他非傳輸媒體，可用於儲存可以被計算設備存取的資訊。按照本文中的界定，電腦可讀儲存媒體不包括暫存電腦可讀媒體(transitory media)，如調變的資料信號和載波。
需要說明的是，在本專利的申請檔中，諸如第一和第二等之類的關係術語僅僅用來將一個實體或者操作與另一個實體或操作區分開來，而不一定要求或者暗示這些實體或操作之間存在任何這種實際的關係或者順序。而且，術語“包括”、“包含”或者其任何其他變體意在涵蓋非排他性的包含，從而使得包括一系列要素的過程、方法、物品或者設備不僅包括那些要素，而且還包括沒有明確列出的其他要素，或者是還包括為這種過程、方法、物品或者設備所固有的要素。在沒有更多限制的情況下，由語句“包括一個”限定的要素，並不排除在包括所述要素的過程、方法、物品或者設備中還存在另外的相同要素。本專利的申請檔中，如果提到根據某要素執行某行為，則是指至少根據該要素執行該行為的意思，其中包括了兩種情況：僅根據該要素執行該行為、和根據該要素和其它要素執行該行為。多個、多次、多種等表達包括2個、2次、2種以及2個以上、2次以上、2種以上。
在本說明書提及的所有文獻都被認為是整體性地包括在本說明書的揭露內容中，以便在必要時可以作為修改的依據。此外應理解，以上所述僅為本說明書的較佳實施例而已，並非用於限定本說明書的保護範圍。凡在本說明書一個或多個實施例的精神和原則之內，所作的任何修改、等同替換、改進等，均應包含在本說明書一個或多個實施例的保護範圍之內。
在一些情況下，在申請專利範圍中記載的動作或步驟可以按照不同於實施例中的順序來執行並且仍然可以實現期望的結果。另外，在圖式中描述的過程不一定要求示出的特定順序或者連續順序才能實現期望的結果。在某些實施方式中，多工處理和並行處理也是可以的或者可能是有利的。 In the following description, many technical details are proposed in order to enable readers to better understand the application. However, those skilled in the art can understand that the technical solutions claimed in this application can be realized even without these technical details and various changes and modifications based on the following implementation modes. Explanation of some concepts: Correspondence: refers to the corresponding relationship between two or more data, usually stored in storage devices (such as storage servers, hard disks, memory, etc.), and the specific storage forms can be various , for example, can be a file representing the corresponding relationship, or a table in a database, and so on. Unmanned retail equipment is an automated equipment that can complete product selection, charging and sales without personnel on duty. In some application scenarios, it can also be called vending machines, unmanned retail cabinets, etc. Unmanned retail equipment is not limited by time and place, which can save manpower and facilitate transactions. Some unmanned retail equipment includes one or more aisles, and each aisle is used to place the goods to be sold. When a product is purchased, usually the frontmost product of a aisle will be pushed out of the aisle and slide down to the pick-up The item window, the user can directly open the pick-up window to get the product. One aisle can display only one type of commodity, or a mixture of various commodities. The implementation manners of this specification will be further described in detail below in conjunction with the drawings. The first embodiment of this specification relates to a refund method, the process of which is shown in Figure 1. The method includes the following steps: In step 102, the unmanned retail device uses a weight sensing device to check the current Inventory goods are weighed to obtain the first weight. There are various timings for triggering this weighing. Optionally, after the order is confirmed, the unmanned retail equipment uses the weight sensing device to weigh the current inventory commodity to obtain the first weight. Optionally, it can be weighed after each shipment, and the weight is saved and used as the first weight in the next shipment. Then enter step 104, when the unmanned retail equipment receives the refund signal through the input device, it uses the weight sensing device to weigh the current inventory again to obtain the second weight. The input device can be a touch screen, physical keys, keyboard, etc. The refund signal is a signal representing the user's request for refund, for example, the user can click on the icon of requesting refund through the touch screen to send the refund signal. In one embodiment, the commodities in the unmanned retail equipment are placed on one or more aisles, and the two weighings in step 102 and step 104 are carried out on the aisles where the purchased commodities are located before shipment. For example, the unmanned retail equipment has 8 aisles, and each aisle places a commodity. The purchased goods are placed on the 7th cargo lane before shipment, so the two weighings only need to be carried out on the 7th cargo lane. Optionally, weight sensors are provided in the cargo lane. Each cargo lane can be provided with a weight sensor. Then enter step 106, the unmanned retail equipment judges whether the weight difference between the first weight and the second weight is less than the threshold value, if yes, enter step 110, otherwise enter step 108. There are many ways to determine the threshold value. Specifically: Optionally, a unified threshold value can be preset for all commodities, and the threshold value is smaller than the weight of the lightest single commodity in the unmanned retail equipment. For example, there are more than a dozen commodities in an unmanned retail device, and the weight of a single commodity is between 50 grams and 400 grams. The threshold value can be set to 20 grams or 30 grams. If the threshold value is too small, it is easy to cause misjudgment due to measurement error. For example, if the product is stuck, the weight of the two measurements should be equal, but because the measurement error is relatively large, and the threshold value is too small, it will be misjudged as the product has been delivered successfully. Shipment. In general, the threshold value should not be smaller than the possible measurement error range. If the threshold value is too large, it will also lead to misjudgment due to measurement error. For example, some lighter products have been shipped smoothly, but the product is too light, and the weight of the product has not exceeded the threshold value after being affected by the measurement error, thus It was misjudged as a card cargo. Optionally, the unmanned retail equipment has multiple cargo lanes, and the corresponding relationship between cargo lanes and threshold values is preset in the unmanned retail equipment, or each cargo lane can be set with a corresponding threshold value, and the corresponding threshold value of each cargo lane Thresholds can be the same or different. The threshold value corresponding to each cargo lane can be related to the type of commodity placed in the cargo lane. If a single commodity is relatively heavy, such as beverages, a relatively large threshold value can be set. If it is a case where a single product is relatively light, such as potato chips, a relatively small threshold can be set. When it is necessary to compare the weight difference with the threshold value, you can query the above corresponding relationship according to the cargo lane where the purchased product is located to obtain the threshold value corresponding to the cargo lane, and compare the threshold value with the weight difference value to Determines whether to initiate a chargeback. Optionally, the unmanned retail equipment is preset with a corresponding relationship between commodity types and threshold values, or each commodity can be set with a corresponding threshold value, and the threshold values corresponding to various commodities are usually related to the weight of a single piece of the commodity. Related, in principle, the heavier a single item is, the higher the threshold value corresponding to the item type of the item will be. The weight of a single commodity in each commodity type can be preset in the unmanned retail equipment. In one embodiment, the threshold value can be set as a proportion of the weight of a single commodity, for example, 40%. When it is necessary to compare the weight difference with the threshold value, you can query the above correspondence according to the product type of the purchased product to obtain the threshold value corresponding to the product type, and compare the threshold value with the weight difference value to Determines whether to initiate a chargeback. In this way, different thresholds for different commodities can be realized by self-adjustment, and the accuracy of judging weight differences can be improved. Especially for the situation where multiple commodities with different weights may be placed on the same cargo lane at the same time, it can effectively avoid the relative error from affecting the judgment accuracy. Influence. In step 108, the unmanned retail device displays information on the display screen indicating that no immediate refund is possible. It can include the contact information for manual refund processing, so that users can take the manual refund route. In step 110, the unmanned retail device initiates a refund process. In one embodiment, the refund process further includes: the unmanned retail device sends a refund instruction to the business system of the merchant, and the refund instruction includes a transaction order number. The business system of the merchant responds to the refund instruction, and obtains the corresponding transaction amount and payment account number according to the transaction order number. The merchant business system sends a refund application to the acquiring system, which includes the transaction order number, transaction amount and payment account number. In response to the refund application, the receiving system initiates a refund to the payment account according to the transaction order number and transaction amount. If the refund is successful, the acquiring acceptance system sends a message notifying the success of the refund to the business system of the merchant. The business system of the merchant sends a message notifying the success of the refund to the unmanned retail device. The unmanned retail device displays the refund result on the display screen. If the refund fails, the acquiring acceptance system can send a refund failure message to the business system of the merchant, and the business system of the merchant sends a refund failure notification message to the unmanned retail device, and the unmanned retail device displays the result of the refund failure on the display screen. In this implementation mode, by introducing a weight detection and identification mechanism, the situation of the stuck goods can be automatically verified, and the user can complete the refund with one button on the unmanned retail device without feedback from the telephone customer service personnel, which greatly simplifies the refund process for the user and improves the The consumption experience of users; merchants can reduce the staffing of corresponding positions, reduce operating costs, and improve enterprise operating efficiency. The second embodiment of this specification relates to an unmanned retail device, the structure of which is shown in FIG. 2 . The unmanned retail device includes: a weight sensing device for weighing the current inventory. There can be one or more weight sensing devices, three are schematically drawn in Figure 2, but not limited to three, there can be more or less. input device. The input device can be a touch screen, physical keys, keyboard, etc. communication device. It can be a wireless communication module (such as WIFI module, 4G communication module, 5G communication module, etc.), or a wired communication module, such as optical fiber communication module, Ethernet communication module, etc. The communication device can be connected and communicated with external systems (such as merchant business systems). The control device is used to control the weight sensing device to weigh the current stocked product to obtain the first weight before the purchased product is shipped. When the refund signal is received through the input device, the weight sensing device is controlled to weigh the current inventory product again to obtain the second weight. If the weight difference between the first weight and the second weight is less than the threshold value, the control communication device sends a refund instruction to the external system. The control device can be a processor whose function can be realized by running software. In one embodiment, the processor may be a central processing unit (Central Processing Unit, referred to as "CPU"), and may also be other general-purpose processors, digital signal processors (Digital Signal Processor, referred to as "DSP"), dedicated product Body circuit (Application Specific Integrated Circuit, referred to as "ASIC") and so on. There are various timings for the control device to control the first weighing (obtaining the first weight). Optionally, after the order is confirmed, the weight sensing device is controlled to weigh the current inventory commodity to obtain the first weight. Optionally, it can be weighed after each shipment, and the weight is saved and used as the first weight in the next shipment. In one embodiment, the unmanned retail equipment includes at least one cargo lane for storing commodities. The weight sensor is arranged in the cargo lane, and is used for weighing the current inventory commodities in the cargo lane. In one embodiment, the unmanned retail equipment has multiple aisles. The unmanned retail equipment also includes a memory, which stores the corresponding relationship between the goods lane and the threshold value. According to the aisle where the purchased commodity is located, the control device obtains a threshold value by inquiring about the corresponding relationship, which is used for comparison with the weight difference. In one embodiment, the unmanned retail device further includes a memory, in which is stored the corresponding relationship between commodity types and threshold values. According to the commodity type of the purchased commodity, the control device obtains the threshold value by querying the corresponding relationship, which is used for comparison with the weight difference. In one embodiment, the threshold value is less than the weight of the lightest single item in the unmanned retail facility. In one embodiment, the unmanned retail device further includes a display screen. When the control device determines that the weight difference is greater than the threshold value, a message indicating that the refund cannot be made immediately is displayed on the display screen. The first embodiment is a method embodiment corresponding to this embodiment, the technical details in the first embodiment can be applied to this embodiment, and the technical details in this embodiment can also be applied to the first embodiment. The third embodiment of this specification relates to a refund system, its structure is shown in Figure 2, the refund system includes: the unmanned retail device as described in the second embodiment, the refund instruction sent by the unmanned retail device includes The transaction order number. The merchant business system is used to respond to the refund instruction, obtain the corresponding transaction amount and payment account number according to the transaction order number, and send a refund application to the acquiring system, including the transaction order number, transaction amount and payment account number. The receipt acceptance system is used to respond to the refund application and initiate a refund to the payment account according to the transaction order number and transaction amount. In one embodiment, the acquiring acceptance system is further configured to send a message notifying the success of the refund to the business system of the merchant when the refund is successful. The business system of the merchant is also used to send a message notifying the success of the refund to the unmanned retail device. The unmanned retail equipment is also used to display the refund result on the display screen. The first embodiment is a method embodiment corresponding to this embodiment, the technical details in the first embodiment can be applied to this embodiment, and the technical details in this embodiment can also be applied to the first embodiment in order to better To better understand the technical solution of this specification, the following will be described in conjunction with a specific example. The details listed in this example are mainly for ease of understanding, and are not intended to limit the scope of protection of this application. The flow of this example is shown in Figure 4. In step 1: the user selects the commodity to be purchased on the unmanned retail cabinet. The unmanned retail cabinet is a kind of unmanned retail equipment. In step 1.1, at this time, the unmanned retail cabinet uses the built-in weight sensing device in the aisle to detect the weight of the inventory goods in the aisle where the commodity is located, and stores the detection result (ie, the first weight). In step 2: the user scans the payment code on the unmanned retail cabinet through the mobile payment device, completes the payment, and waits for the shipment. In step 2.1, the unmanned retail cabinet fails, resulting in unshipped goods. In step 3: the user clicks the refund button on the unmanned retail cabinet, and initiates a refund application for this transaction on the unmanned retail cabinet; Check the weight of the inventory goods in the cargo lane, and store the test result (ie, the second weight). In step 3.1.1, the unmanned retail cabinet compares the latest two weight detection data (namely the first weight and the second weight). In step 3.1.2, if the result of the comparison is that the weight difference does not exceed the preset error critical value (ie, the threshold value), it means that a cargo jam occurs. In step 3.1.3, the unmanned retail cabinet transmits the refund instruction to the business system of the merchant, and the refund instruction includes the transaction order number. In step 3.1.3.1, after receiving the refund instruction issued by the unmanned retail cabinet, the business system of the merchant extracts the corresponding transaction amount, payment account number, and information of the receiving system for this order according to the transaction order number; the business system of the merchant , initiate an express refund application to the target acquiring acceptance system, including the transaction order number, refund amount and payment account number. In step 3.1.3.1.1, when the receiving system receives the refund application, it will directly initiate a refund to the user, and the user's refund amount can be credited immediately. In step 3.1.3.1.2, the acquiring acceptance system sends a notification message carrying refund result information to the business system of the merchant, notifying the merchant that the refund has been completed. In step 3.1.4, the merchant business system pushes the refund result to the unmanned retail cabinet after receiving the feedback from the receiving system. In step 3.2, the unmanned retail cabinet displays the refund result to the user through a display screen. In step 3.1.5, the unmanned retail cabinet identifies and compares the last two weight inspection records and finds that the difference exceeds the preset error threshold, indicating that there is no jammed goods, and rejects the user's rapid refund application in step 3.1.6. And in step 3.1.7, the information of refund failure is displayed to the user through the display screen, and the user is suggested to call for consultation. The preset error threshold mentioned above can be determined according to the sensitivity of the weight sensing device built in the unmanned retail cabinet and the weight of the smallest single commodity placed in the unmanned retail cabinet. When the sensitivity of the detector is high and the weight of a single product is large, the error threshold can be appropriately reduced; otherwise, it can be appropriately increased. It should be noted that those skilled in the art should understand that the implementation functions of each module shown in the above-mentioned implementation of the unattended retail device can be understood with reference to the relevant description of the aforementioned refund method. The functions of the control device shown in the above implementations of unmanned retail equipment can be realized by programs (executable instructions) running on the processor, or by specific logic circuits. If the above-mentioned control device in the embodiment of this specification is implemented in the form of a software function module, it can also be stored in a computer-readable storage medium. Thus, embodiments of the present description are not limited to any specific combination of hardware and software. Correspondingly, the embodiments of this specification also provide a computer-readable storage medium, in which computer-executable instructions are stored, and when the computer-executable instructions are executed by a processor, various method embodiments of this specification are implemented. Computer-readable storage media includes both permanent and non-permanent, removable and non-removable media, and may be implemented by any method or technology for storage of information. Information may be computer readable instructions, data structures, program modules, or other data. Examples of storage media for computers include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM) , read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, compact disc read-only memory (CD-ROM), digital multifunction A compact disk (DVD) or other optical storage, magnetic cassette, magnetic tape magnetic disk storage or other magnetic storage device or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, computer-readable storage media does not include transitory computer-readable media, such as modulated data signals and carrier waves. It should be noted that in the application documents of this patent, relative terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply these No such actual relationship or order exists between entities or operations. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or apparatus. Without further limitations, an element defined by the statement "comprising a" does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising said element. In the application documents of this patent, if it is mentioned that an action is performed according to a certain element, it means that the action is performed based on at least the element, which includes two situations: performing the action only based on the element, and performing the action based on the element and Other elements perform this behavior. Expressions such as multiple, multiple, and multiple include 2, 2 times, 2 types, and 2 or more, 2 or more times, or 2 or more types. All documents mentioned in this specification are considered to be included in the disclosure content of this specification as a whole, so that they can be used as a basis for modification when necessary. In addition, it should be understood that the above descriptions are only preferred embodiments of this specification, and are not intended to limit the protection scope of this specification. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of one or more embodiments of this specification shall be included in the protection scope of one or more embodiments of this specification. In some cases, the actions or steps recited in the claims can be performed in an order different from that in the examples and still achieve desirable results. In addition, the processes depicted in the figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. Multiplexing and parallel processing are also possible or may be advantageous in certain embodiments.
