WO2019205584A1 - 称重装置、可穿戴称重终端及称重方法 - Google Patents

称重装置、可穿戴称重终端及称重方法 Download PDF

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Publication number
WO2019205584A1
WO2019205584A1 PCT/CN2018/115078 CN2018115078W WO2019205584A1 WO 2019205584 A1 WO2019205584 A1 WO 2019205584A1 CN 2018115078 W CN2018115078 W CN 2018115078W WO 2019205584 A1 WO2019205584 A1 WO 2019205584A1
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Prior art keywords
weighing
radio frequency
wearable
weight
information
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PCT/CN2018/115078
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English (en)
French (fr)
Inventor
张忆非
饶晖
张莹
赵凯
曹世杰
李太亮
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京东方科技集团股份有限公司
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Publication of WO2019205584A1 publication Critical patent/WO2019205584A1/zh

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G23/00—Auxiliary devices for weighing apparatus
    • G01G23/18—Indicating devices, e.g. for remote indication; Recording devices; Scales, e.g. graduated
    • G01G23/38—Recording and/or coding devices specially adapted for weighing apparatus
    • G01G23/42—Recording and/or coding devices specially adapted for weighing apparatus electrically operated
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
    • G06K17/0022—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device
    • G06K17/0029—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device the arrangement being specially adapted for wireless interrogation of grouped or bundled articles tagged with wireless record carriers

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  • the present disclosure relates generally to the field of automation, and more particularly to weighing devices, wearable weighing terminals, and weighing methods.
  • a weighing apparatus comprising:
  • a weighing unit configured to detect a weight of the tested item
  • An RF reader/writer configured to communicate with a wearable weighing terminal
  • a controller communicatively coupled to the weighing unit and the radio frequency reader, and configured to control the radio frequency reader to transmit to the wearable weighing terminal and the detected by the weighing unit Information related to changes in the weight of the tested product.
  • the weighing unit includes a load cell and a tray, the tray is disposed on the load cell, and the load cell is configured to sense the weight of the tested item on the tray.
  • the controller is further configured to: detect, by the radio frequency reader, whether there is a radio frequency tag entering a communication range; in response to detecting the presence of the radio frequency tag, reading Taking information about the corresponding wearable weighing terminal in the radio frequency tag; detecting, by the weighing unit, whether the weight of the tested product changes during the detection of the presence of the radio frequency tag; and in response to detecting The weight of the tested item is reduced, and information related to the reduced weight of the tested item is sent to the corresponding wearable weighing terminal by the radio frequency reader.
  • the controller is further configured to: from the corresponding wearable weighing terminal by the radio frequency reader, in response to detecting an increase in weight of the tested item Receiving information related to the reduced weight in the previous weighing operation for the tested item; determining whether the reduced weight in the received previous weighing operation is the same as the increased weight detected this time; At least in response to determining that the reduced weight in the received previous weighing operation is the same as the increased weight detected this time, the radio frequency reader/writer transmits an indication to the corresponding wearable weighing terminal to cancel the previous weighing Re-operational information.
  • the weighing apparatus further includes: a camera, the camera is communicatively coupled to the controller, wherein the controller is further configured to: collect according to the camera Image information to determine whether the item placed in the tray is consistent with the item being tested.
  • the controller is further configured to: responsive to determining that the reduced weight in the received previous weighing operation is the same as the current detected increased weight and in response to Determining that the placed product is consistent with the measured product, and transmitting, by the radio frequency reader, to the corresponding wearable weighing terminal, information indicating that the previous weighing operation is cancelled.
  • the controller is further configured to: perform error alarm processing in response to detecting that the item is inconsistent with the item to be tested.
  • a display communicatively coupled to the controller and configured to display a change in weight of the tested item detected by the weighing unit relevant information.
  • a wearable weighing terminal comprising: a radio frequency tag configured to receive information related to a change in weight of an item to be tested transmitted by a weighing device, save the information, and transmit the information to an external device The information; and a wearing mechanism configured to secure the radio frequency tag to a wearer's wrist, the wearing mechanism being an open loop.
  • a transmissive photosensor configured to detect a pulse of the wearer
  • a controller controlling whether to permit or prohibit saving information to the radio frequency tag according to the presence or absence of a pulse.
  • the radio frequency tag is an RFID tag.
  • the radio frequency tag is an NFC tag.
  • a rechargeable lithium battery is further included, configured to be powered.
  • a weighing system comprising: a weighing device as provided in various embodiments of the present disclosure, as provided in various embodiments of the present disclosure.
  • a weighing method at a weighing device comprising: detecting, by an RF reader at the weighing device, whether there is a radio frequency tag entering a communication range; in response to detecting the radio frequency tag Executing, reading information related to the corresponding wearable weighing terminal in the radio frequency tag; detecting, by the weighing unit of the weighing device, whether the weight of the tested product changes during detecting the presence of the radio frequency tag; And in response to detecting the weight reduction of the tested item, transmitting, by the radio frequency reader, information related to the reduced weight of the tested item to the corresponding wearable weighing terminal.
  • the method further includes receiving, by the radio frequency reader, from the corresponding wearable weighing terminal, in response to detecting an increase in weight of the tested item The reduced weight-related information in the previous weighing operation of the tested item; determining whether the reduced weight in the received previous weighing operation is the same as the increased weight detected this time; and at least in response to Determining that the mitigating weight in the received previous weighing operation is the same as the increased weight detected this time, and transmitting, by the radio frequency reader/writer, to the corresponding wearable weighing terminal, canceling the previous weighing operation information.
  • the method further includes determining, according to image information collected by a camera of the weighing device, whether an item placed in the tray is consistent with the measured item.
  • the method further includes: responsive to determining that the reduced weight in the received previous weighing operation is the same as the currently detected increased weight and in response to determining to place The merchandise is consistent with the product to be tested, and the radio frequency reader/writer transmits information indicating that the previous weighing operation is cancelled to the corresponding wearable weighing terminal.
  • the method further includes: in response to detecting that the item is inconsistent with the item to be tested, performing an error alarm process.
  • a fifth aspect a weighing method at a wearable weighing terminal, comprising: receiving information related to a change in weight of an article to be tested transmitted by a weighing device; saving the information; and transmitting the device to an external device Information.
  • the method further includes: responsive to not receiving information indicating that a pulse is present by the transmissive photoelectric sensor of the wearable weighing terminal within a preset length of time, The radio frequency tag of the wearable weighing terminal is prohibited from receiving information or saving the received information.
  • FIG. 1 illustrates an exemplary schematic diagram of a weighing apparatus in accordance with an embodiment of the present disclosure
  • FIG. 2 shows an exemplary structural block diagram of a weighing apparatus according to an embodiment of the present disclosure
  • FIG. 3 illustrates an exemplary schematic diagram of a wearable weighing terminal in accordance with an embodiment of the present disclosure
  • FIG. 4 illustrates an exemplary structural block diagram of a wearable weighing terminal according to an embodiment of the present disclosure
  • FIG. 5 illustrates an exemplary flow chart of a weighing method for a weighing apparatus in accordance with an embodiment of the present disclosure
  • FIG. 6 shows an exemplary flow chart of step S102 in accordance with an embodiment of the present disclosure
  • FIG. 7 illustrates an exemplary flowchart of step S203 in accordance with an embodiment of the present disclosure
  • FIG. 8 illustrates an exemplary flow chart of a weighing method for a wearable weighing terminal in accordance with an embodiment of the present disclosure.
  • FIG. 1 illustrates an exemplary schematic diagram of a weighing apparatus according to an embodiment of the present disclosure
  • FIG. 2 illustrates an exemplary structural block diagram of a weighing apparatus according to an embodiment of the present disclosure.
  • a weighing device includes:
  • One or more RF readers 22, the RF reader 22 is configured to communicate with the wearable weighing terminal;
  • the controller 23 is communicatively coupled to the weighing unit 21 and the radio frequency reader 22, and is configured to control the radio frequency reader/writer 22 to transmit the weight of the tested item detected by the weighing unit 21 to the wearable weighing terminal. Changes related information.
  • the number of weighing units 21 can be configured according to requirements, and can usually be configured according to the type of goods.
  • the controller 23 can be configured to receive information related to the weight of the corresponding item detected by the plurality of weighing units 21, and transmit the detected weight change to the external device (such as a wearable weighing terminal) through the RF reader/writer 22. Relevant information. It should be noted that each of the weighing units 21 may be configured with one RF reader/writer 22, or the plurality of weighing units 21 may be configured with the same RF reader/writer 22. This may be determined according to actual conditions, and thus the disclosure is not limited thereto. .
  • the weighing unit 21 can include a load cell 211 and a tray 212 that can be disposed on the load cell 211, and the load cell 211 can be used to sense the weight of the item being tested on the tray 212.
  • an embodiment of a weighing apparatus is shown. It is provided with two weighing units 21, and is respectively provided with a tray 212 and a tray 213 and an RF reader/writer 22 and an RF reader/writer 26, among them.
  • the radio frequency reader/writer 22 can be used to transmit information related to changes in the weight of the merchandise in the tray 212 with an external device
  • the radio frequency reader/writer 26 can be used to transmit information related to changes in the weight of the merchandise in the tray 213 with the external device.
  • an item is placed in each tray, and as the purchaser purchases, the weight of the item decreases, and the controller 23 can detect the weight of the item purchased by the purchaser based on the difference in weight before and after the purchase.
  • the weighing device may further include a camera 24, the camera 24 may be communicatively coupled to the controller 23, and the controller 23 may determine whether the added item is in the tray with the product image information collected by the camera 24. The measured items are consistent.
  • the camera 24 can be used to identify whether the placed item is the same as the item in the tray. For example, when the purchaser puts the pear into the apple tray, it is possible to judge the occurrence of the different goods being placed on the tray by the identification of the collected product image information.
  • the weighing device can also include a display 25 that can be communicatively coupled to the controller 23 for displaying information related to changes in weight.
  • each weighing device can be configured with a display 25, or a plurality of weighing devices can be configured with a display 25.
  • the product label 27 for indicating the product information may be replaced with a display, or the display 25 may be separately configured to perform data communication with the controller 23 by wire or wirelessly.
  • the present disclosure also discloses a wearable weighing terminal for use with a weighing device.
  • FIG. 3 illustrates an exemplary schematic diagram of a wearable weighing terminal according to an embodiment of the present disclosure
  • FIG. 4 illustrates an exemplary wearable weighing terminal according to an embodiment of the present disclosure. Structure diagram.
  • the wearable weighing terminal includes:
  • a radio frequency tag 11 for receiving information related to a change in weight of the tested item transmitted by the weighing device, saving the information, and transmitting the information to an external device (eg, an external automatic settlement device or the aforementioned weighing device) information;
  • an external device eg, an external automatic settlement device or the aforementioned weighing device
  • the wearing mechanism 12 is configured to wear the radio frequency tag 11 to the human body, for example, to the wrist, and the wearing mechanism 12 can be an open ring, such as a ring bracelet.
  • the radio frequency tag 11 is used to receive and store the weight information transmitted by the weighing device.
  • the radio frequency tag is a Radio Frequency Identification (RFID) tag or a Near Field Communication (NFC) tag.
  • RFID is a non-contact automatic identification technology that automatically recognizes target objects and acquires relevant data through radio frequency. RFID technology can recognize high-speed moving objects and recognize multiple tags at the same time, which is convenient and quick to operate.
  • the wearable weighing terminal may further include a transmissive photoelectric sensor 13 and a controller 14 communicatively coupled to the transmissive photosensor 13 and the radio frequency tag 11, and the controller 14 may be based on the presence or absence of the pulse. Control whether to allow or prohibit the saving of information to the radio frequency tag 11.
  • the transmissive photoelectric sensor 13 that collects the pulse information is set to detect whether there is pulse information in real time, and if so, the information is allowed to be written to the radio frequency tag 11, and if not, the writing to the radio frequency tag 11 is prohibited. Enter information. It can be understood that the pulseless information referred to herein means that pulse information is not detected within a specified duration.
  • the wearable weighing terminal may further include a rechargeable lithium battery 15 for powering.
  • the lithium battery 15 can be used to power electronic devices such as the radio frequency tag 11, the controller 14, and the transmissive photosensor 13.
  • the disclosure also discloses a weighing system, the weighing system comprising:
  • a wearable weighing terminal and a weighing device provided by each embodiment are provided as embodiments of the present disclosure.
  • the wearable weighing terminal cooperates with the weighing device to conveniently transmit weight information to the purchaser.
  • the present disclosure also discloses a weighing method for a weighing device.
  • FIG. 5 an exemplary flow chart of a weighing method of a weighing apparatus according to an embodiment of the present disclosure is illustrated. As shown, the method includes:
  • Step S101 detecting whether there is radio frequency tag information, and if yes, reading tag information of the wearable weighing terminal;
  • Step S102 detecting a change in the weight of the tested item, and transmitting information related to the change in the weight to the wearable weighing terminal that matches the tag information.
  • the weighing device controls the radio frequency reader to detect whether there is a radio frequency tag in the vicinity (for example, within the communication range of the RFID or NFC technology). If it exists, it indicates that the shopper approaches the tray. At this time, the weighing device reads the tag information of the radio frequency tag of the wearable weighing terminal to identify the wearable weighing terminal. If not, it indicates that there are no shoppers nearby, then in some embodiments the weighing device can enter a sleep state and wake up after a certain time to, for example, save power. Moreover, in embodiments that employ, for example, a permanent power source rather than a battery, the weighing device can also continue to operate without entering a sleep state.
  • step S102 the weighing device detects a change in the weight of the measured article, and writes information related to the change in the weight to the radio frequency tag matching the tag information, thereby realizing the transfer of the weight information. For example, when the weight reduction of the tested product is detected, information related to the reduced weight of the tested product may be sent to the wearable weighing terminal through the radio frequency reader to indicate that the wearable weighing terminal is associated with the wearable weighing terminal. The person took the corresponding weight of the goods.
  • step S102 includes:
  • Step S201 comparing the currently detected weight information with the weight information of the previous weighing operation
  • Step S202 If the reduction is performed, the weight change information is calculated according to the weight reduction information
  • Step S203 If it is increased, the camera is activated to determine whether the placed product matches the product in the tray.
  • the weighing of the present disclosure compares the currently detected weight information with the previous weight information, and calculates the weight information that the shopper has purchased by the weight difference between the two. If you encounter supplemental out-of-stock items or when the shopper puts different types of goods into the tray, the current detected weight is greater than the previous weight. At this time, start the camera to determine whether the inserted product is the original one of the tray. The goods match.
  • step S203 includes:
  • Step S301 If the placed item is consistent with the item in the tray, the previous weight information is updated
  • Step S302 Otherwise, error alarm processing is performed.
  • the previous weight information is updated to the currently detected weight information. If they do not match, error handling is performed.
  • the shopper will put the goods taken back to the original place.
  • the present disclosure also discloses a weighing method for a wearable weighing terminal.
  • FIG. 8 an exemplary flowchart of a weighing method of a wearable weighing terminal according to an embodiment of the present disclosure is illustrated. As shown, the method includes:
  • Step S401 When the controller does not receive the pulse information sent by the transmissive photoelectric sensor, the radio frequency tag is prohibited from receiving the write information.
  • the weighing device provided with the radio frequency reader/writer is used in conjunction with the wearable weighing terminal with the radio frequency tag, and the weight information is sent to the purchaser in real time. Weighing convenience and improving the efficiency of weighing efficiency.
  • each block of the flowchart or block diagrams can represent a module, a program segment, or a portion of code that includes one or more logic for implementing the specified.
  • Functional executable instructions can also occur in a different order than that illustrated in the drawings. For example, two sequentially connected blocks may be executed substantially in parallel, and they may sometimes be executed in the reverse order, depending upon the functionality involved.
  • each block of the block diagrams and/or flowcharts, and combinations of blocks in the block diagrams and/or flowcharts can be implemented in a dedicated hardware-based system that performs the specified function or operation. Or it can be implemented by a combination of general purpose hardware and computer instructions.

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Abstract

一种称重装置，包括：称重单元（21），称重单元（21）被配置为检测被测商品的重量；射频读写器（22），射频读写器（22）被配置为与可穿戴称重终端通信；以及控制器（23），控制器（23）与称重单元（21）和射频读写器（22）通信连接，并被配置为控制射频读写器（22）向可穿戴称重终端发送与由称重单元（21）检测到的被测商品的重量的变化相关的信息。还公开了一种可穿戴称重终端及称重方法。

Description

称重装置、可穿戴称重终端及称重方法
相关申请的交叉引用
本申请要求于2018年4月25日递交的题为“减量称重装置、可穿戴称重终端及称重方法”的中国专利申请(申请号201810382226.0)的优先权，在此以全文引用的方式将该中国专利申请并入本文中。
技术领域
本公开一般涉及自动化领域，尤其涉及称重装置、可穿戴称重终端及称重方法。
背景技术
一直以来，在超市，称重水果、生鲜时，通常采用人工称重的方式。购买者经常要排队，在一定程度上浪费了购买者的时间，也降低了超市的流通性。
发明内容
鉴于相关技术中的上述缺陷或不足，期望提供一种能够实现自动称重的可穿戴称重终端、称重装置及称重方法。
第一方面，提供一种称重装置，包括：
称重单元，所述称重单元被配置为检测被测商品的重量；
射频读写器，所述射频读写器被配置为与可穿戴称重终端通信；以及
控制器，与所述称重单元和所述射频读写器通信连接，并被配置为控制所述射频读写器向所述可穿戴称重终端发送与由所述称重单元检测到的所述被测商品的重量的变化相关的信息。
在本公开的一个或多个实施例中，称重单元包括称重传感器和托盘，托盘设置在称重传感器上，称重传感器被配置为感测托盘上的被测商品的重量。
在本公开的一个或多个实施例中，所述控制器还被配置为：通过所述射频读写器来检测是否存在进入通信范围的射频标签；响应于检测到所述射频标签存在，读取所述射频标签中与相应可穿戴称重终端有关的信息；通过所述称重 单元来检测在检测到所述射频标签存在期间所述被测商品的重量是否发生变化；以及响应于检测到所述被测商品的重量减轻，通过所述射频读写器向所述相应可穿戴称重终端发送与所述被测商品的减轻的重量相关的信息。
在本公开的一个或多个实施例中，所述控制器还被配置为：响应于检测到所述被测商品的重量增加，通过所述射频读写器从所述相应可穿戴称重终端接收与针对所述被测商品的前一次称重操作中的减轻的重量相关的信息；确定所接收的前一次称重操作中的减轻的重量与本次检测到的增加的重量是否相同；以及至少响应于确定所接收的前一次称重操作中的减轻的重量与本次检测到的增加的重量相同，通过所述射频读写器向所述相应可穿戴称重终端发送指示取消前一次称重操作的信息。
在本公开的一个或多个实施例中，所述称重装置还包括：摄像头，所述摄像头与所述控制器通信连接，其中，所述控制器还被配置为：根据所述摄像头所采集的图像信息来确定放入所述托盘的商品是否与所述被测商品一致。
在本公开的一个或多个实施例中，所述控制器还被配置为：响应于确定所接收的前一次称重操作中的减轻的重量与本次检测到的增加的重量相同并响应于确定放入的商品与所述被测商品一致，通过所述射频读写器向所述相应可穿戴称重终端发送指示取消前一次称重操作的信息。
在本公开的一个或多个实施例中，所述控制器还被配置为：响应于检测到所述商品与所述被测商品不一致，执行错误报警处理。
在本公开的一个或多个实施例中，还包括显示器，所述显示器与所述控制器通信连接，并被配置为显示由所述称重单元检测到的所述被测商品的重量的变化相关的信息。
第二方面，提供一种可穿戴称重终端，包括：射频标签，被配置为接收由称重装置发送的与被测商品的重量的变化相关的信息，保存所述信息，并向外部装置发送所述信息；以及佩戴机构，被配置为将所述射频标签固定在佩戴者的手腕上，所述佩戴机构为开放式环形。
在本公开的一个或多个实施例中，还包括透射式光电传感器，被配置为检测所述佩戴者的脉搏；以及控制器，所述控制器与所述透射式光电传感器和所述射频标签通信连接，所述控制器根据脉搏的有无，控制是允许还是禁止向所 述射频标签保存信息。
在本公开的一个或多个实施例中，射频标签为RFID标签。
在本公开的一个或多个实施例中，射频标签为NFC标签。
在本公开的一个或多个实施例中，还包括可充电式锂电池，被配置为供电。
第三方面，提供一种称重系统，包括：如本公开各实施例中提供的可穿戴称重终端本公开各实施例中提供的称重装置。
第四方面，提供一种在称重装置处的称重方法，包括：通过所述称重装置处的射频读写器来检测是否存在进入通信范围的射频标签；响应于检测到所述射频标签存在，读取所述射频标签中与相应可穿戴称重终端有关的信息；通过所述称重装置的称重单元来检测在检测到所述射频标签存在期间被测商品的重量是否发生变化；以及响应于检测到所述被测商品的重量减轻，通过所述射频读写器向所述相应可穿戴称重终端发送与所述被测商品的减轻的重量相关的信息。
在本公开的一个或多个实施例中，所述方法还包括：响应于检测到所述被测商品的重量增加，通过所述射频读写器从所述相应可穿戴称重终端接收与针对所述被测商品的前一次称重操作中的减轻的重量相关的信息；确定所接收的前一次称重操作中的减轻的重量与本次检测到的增加的重量是否相同；以及至少响应于确定所接收的前一次称重操作中的减轻的重量与本次检测到的增加的重量相同，通过所述射频读写器向所述相应可穿戴称重终端发送指示取消前一次称重操作的信息。
在本公开的一个或多个实施例中，所述方法还包括：根据所述称重装置的摄像头所采集的图像信息来确定放入所述托盘的商品是否与所述被测商品一致。
在本公开的一个或多个实施例中，所述方法还包括：响应于确定所接收的前一次称重操作中的减轻的重量与本次检测到的增加的重量相同并响应于确定放入的商品与所述被测商品一致，通过所述射频读写器向所述相应可穿戴称重终端发送指示取消前一次称重操作的信息。
在本公开的一个或多个实施例中，所述方法还包括：响应于检测到所述商品与所述被测商品不一致，执行错误报警处理。
第五方面，一种在可穿戴称重终端处的称重方法，包括：接收由称重装置发送的与被测商品的重量的变化相关的信息；保存所述信息；以及向外部装置发送所述信息。
在本公开的一个或多个实施例中，所述方法还包括：响应于在预设时间长度内未接收到由所述可穿戴称重终端的透射式光电传感器发送的指示存在脉搏的信息，禁止所述可穿戴称重终端的射频标签接收信息或保存所接收的信息。
附图说明
通过阅读参照以下附图所作的对非限制性实施例所作的详细描述，本公开的其它特征、目的和优点将会变得更明显：
图1示出了根据本公开实施例的称重装置的示例性示意图；
图2示出了根据本公开实施例的称重装置的示例性结构框图；
图3示出了根据本公开实施例的可穿戴称重终端的示例性示意图；
图4示出了根据本公开实施例的可穿戴称重终端的示例性结构框图；
图5示出了根据本公开实施例的用于称重装置的称重方法的示例性流程图；
图6示出了根据本公开实施例的步骤S102的示例性流程图；
图7示出了根据本公开实施例的步骤S203的示例性流程图；以及
图8示出了根据本公开实施例的用于可穿戴称量终端的称重方法的示例性流程图。
具体实施方式
下面结合附图和实施例对本公开作进一步的详细说明。可以理解的是，此处所描述的具体实施例仅仅用于解释相关公开，而非对该公开的限定。另外还需要说明的是，为了便于描述，附图中仅示出了与公开相关的部分。
需要说明的是，在不冲突的情况下，本公开中的实施例及实施例中的特征可以相互组合。下面将参考附图并结合实施例来详细说明本公开。
请参考图1和图2，其中，图1示出了根据本公开实施例的称重装置的示例性示意图；图2示出了根据本公开实施例的称重装置的示例性结构框图。如 图1和图2所示，一种称重装置包括：
一个或多个称重单元21，称重单元21用于检测被测商品的重量；
一个或多个射频读写器22，射频读写器22用于与可穿戴称重终端通信；以及
控制器23，控制器23与称重单元21和射频读写器22通信连接，并用于控制射频读写器22向可穿戴称重终端发送与由称重单元21检测到的被测商品的重量的变化相关的信息。
实际应用中，称重单元21的数量可根据需求配置，通常可根据商品的种类配置。控制器23可用于接收与多个称重单元21检测到的相应商品的重量相关的信息，并通过射频读写器22向外部设备(如可穿戴称重终端)发送与检测到的重量的变化有关的信息。需要说明的是，每个称重单元21可配置一个射频读写器22，或者多个称重单元21可配置同一射频读写器22，这可根据实际情况而定，因此本公开不限于此。
在一些实施例中，称重单元21可包括称重传感器211和托盘212，托盘212可设置在称重传感器211上，称重传感器211可用于感测托盘212上的被测商品的重量。
如图1所示，给出一称重装置的实施例。其配置有两个称重单元21，并分别配置有托盘212和托盘213和射频读写器22和射频读写器26，其中。射频读写器22可用于与外部设备进行与托盘212中商品重量的变化有关的信息的传输，射频读写器26可用于与外部设备进行与托盘213中商品重量的变化有关的信息的传输。使用时，每个托盘中摆放某一商品，随着购买者的购买，商品重量减少，则控制器23可根据购买前后的重量差来检测购买者购买的商品重量。
在一些实施例中，称重装置还可包括摄像头24，摄像头24可与控制器23通信连接，控制器23通过摄像头24所采集的商品图像信息，可判断所增加的商品是否与托盘中的被测商品一致。在购买过程中，为了避免购物者将另一种商品放置于托盘中，可采用摄像头24来识别所放置商品是否与托盘中的商品相同。例如，当购买者将梨放入苹果托盘时，可通过所采集的商品图像信息的识别，能够判断发生不同商品放入至托盘的现象。
在一些实施例中，称重装置还可包括显示器25，显示器25可与控制器23通信连接，用于显示与重量的变化有关的信息。在一些实施例中，每个称重装置可配置一显示器25，或者多个称量装置可配置一显示器25。如图1所示，根据需求，用于标明商品信息的商品标签27可替换为显示器；或者单独配置显示器25，通过有线或者无线方式与控制器23进行数据通信。
本公开还公开与称重装置配合使用的一种可穿戴称重终端。
请参考图3和图4，其中，图3示出了根据本公开实施例的可穿戴称重终端的示例性示意图；图4示出了根据本公开实施例的可穿戴称重终端的示例性结构框图。如图3和图4所示，可穿戴称重终端包括：
射频标签11，用于接收由称重装置发送的与被测商品的重量的变化相关的信息，保存所述信息，并向外部装置(例如，外部自动结算设备或前述称重装置)发送所述信息；
佩戴机构12，用于将射频标签11佩戴于人体，例如固定在手腕上，佩戴机构12可为开放式环形，如环形手环。
采用射频标签11接收和保存称重装置发送的重量信息。射频标签为射频识别(Radio Frequency Identification，RFID)标签，或者为近场通信(NFC)标签。RFID是一种非接触式的自动识别技术，它通过射频自动识别目标对象并获取相关数据，RFID技术可识别高速运动物体并可同时识别多个标签，操作方便快捷。
在一些实施例中，可穿戴称重终端还可包括透射式光电传感器13和控制器14，控制器14与透射式光电传感器13、射频标签11通信连接，控制器14可根据脉搏的有无来控制是允许还是禁止向射频标签11保存信息。
在可穿戴称重终端处，通过设置采集脉搏信息的透射式光电传感器13来实时检测是否有脉搏信息，若有，则允许向射频标签11写入信息，若无，则禁止向射频标签11写入信息。可以理解的是，这里所说的无脉搏信息是指，指定时长内未检测到脉搏信息。
在一些实施例中，可穿戴称重终端还可包括可充电式锂电池15，用于供电。锂电池15可用于向射频标签11、控制器14和透射式光电传感器13等电子器件供电。
本公开还公开一种称重系统，该称重系统包括：
如本公开各实施例提供的可穿戴称重终端和各实施例提供的称重装置。可穿戴称重终端和称重装置共同配合，将重量信息方便地发送到购买者。
本公开还公开一种称重方法，用于称重装置。
请参考图5，示出了根据本公开实施例的称重装置的称重方法的示例性流程图。如图所示，方法包括：
步骤S101：检测是否有射频标签信息，若存在则读取可穿戴称重终端的标签信息；
步骤S102：检测被测商品的重量的变化，并将与重量的变化有关的信息发送给与标签信息匹配的可穿戴称重终端。
在步骤S101，称重装置控制射频读写器检测附近(例如，RFID或NFC技术的通信范围内)是否有射频标签存在，若存在，说明有购物者走近托盘。此时称重装置读取可穿戴称重终端的射频标签的标签信息，以识别可穿戴称重终端。若不存在，则说明附近没有购物者，则在一些实施例中称重装置可进入休眠状态，并在一定时间后醒来以例如节约功耗。此外，在例如采用持久电源而非电池的实施例中，称重装置也可以不进入休眠状态而持续工作。
在步骤S102，称重装置检测被测商品的重量的变化，并将与重量的变化有关的信息写入与标签信息匹配的射频标签，从而实现重量信息的传递。例如，当检测到被测商品的重量减轻时，可通过射频读写器向该可穿戴称重终端发送与被测商品的减轻的重量相关的信息，以表明与该可穿戴称重终端相关联的人取走了相应重量的商品。
接着请参考图6，示出了根据本公开实施例的步骤S102的示例性流程图。如图所示，步骤S102包括：
步骤S201：当前所检测的重量信息与前一次称重操作的重量信息进行比较；
步骤S202：若减少，则根据重量减少信息计算重量变化信息；
步骤S203：若增加，则启动摄像头，判断所放入的商品是否与托盘中的商品一致。
本公开的称重是将当前检测的重量信息与前一个重量信息比较，通过两者 的重量差，计算购物者所购物的重量信息。如遇到补充缺货商品或者购物者将不同类商品放入托盘时，将出现当前所检测的重量大于前一次重量的情况，此时，启动摄像头，判断放入的商品是否与托盘的原有商品相符。
请参考图7，示出了根据本公开实施例的步骤S203的示例性流程图。如图所示，步骤S203包括：
步骤S301：若所放入的商品与托盘中的商品一致，则更新前一次重量信息；
步骤S302：否则，进行错误报警处理。
当识别到所放入的商品与托盘中的原有商品相符时，将前一次重量信息更新为当前检测的重量信息。若不相符，则进行错误处理。
此外，还存在购物者将所拿去的商品放回原处的可能。在该情况下，需要同时判断商品的重量是否增加以及与该重量的增加相对应的射频标签中是否存在前一次称重操作相关的信息，然后进一步确定本次重量的增加与前一次操作的重量的减少是否相同。如果相同，则可以认为是购物者将所拿去的商品放回原处，在该情况下，可以向购物者的可穿戴称重终端发送指示取消前一次操作的信息。如果不同，则可以认为购物者仅归还了部分商品或设备出现故障，在该情况下，可以选择进行报警处理或其它恰当操作。
本公开还公开用于可穿戴称量终端的称重方法。
请参考图8，示出了根据本公开实施例的可穿戴称量终端的称重方法的示例性流程图。如图所示，该方法包括：
步骤S401：控制器未接收到透射式光电传感器发送的脉搏信息时，禁止射频标签接收写入信息。
通过在可穿戴称重终端设置检测脉搏的透射式光电传感器，可防止可穿戴称重终端脱离人体造成的信息误写入或漏写情况，或防止购买者的作弊行为。
根据本公开实施例提供的技术方案，通过在摆放商品的托盘下设置称重单元，能够解决相关手动称重带来的称重效率低下问题。进一步的，根据本公开的某些实施例，通过内设有射频读写器的称重装置与内设有射频标签的可穿戴称重终端相配合使用，将重量信息实时发送至购买者，获得称重便利和提高称重效率的效果。
附图中的流程图和框图，图示了按照本公开各种实施例的系统、方法和计算机程序产品的可能实现的体系架构、功能和操作。在这点上，流程图或框图中的每个方框可以代表一个模块、程序段、或代码的一部分，所述模块、程序段、或代码的一部分包含一个或多个用于实现规定的逻辑功能的可执行指令。也应当注意，在有些作为替换的实现中，方框中所标注的功能也可以以不同于附图中所标注的顺序发生。例如，两个顺序连接的方框实际上可以基本并行地执行，它们有时也可以按相反的顺序执行，这依所涉及的功能而定。也要注意的是，框图和/或流程图中的每个方框、以及框图和/或流程图中的方框的组合，可以用执行规定的功能或操作的专用的基于硬件的系统来实现，或者可以用通用硬件与计算机指令的组合来实现。
以上描述仅为本公开的部分实施例以及对所运用技术原理的说明。本领域技术人员应当理解，本公开中所涉及的公开范围，并不限于上述技术特征的特定组合而成的技术方案，同时也应涵盖在不脱离所述公开构思的情况下，由上述技术特征或其等同特征进行任意组合而形成的其它技术方案。例如上述特征与本公开中公开的(但不限于)具有类似功能的技术特征进行互相替换而形成的技术方案。

Claims (21)

  1. 一种称重装置，包括：
    称重单元，所述称重单元被配置为检测被测商品的重量；
    射频读写器，所述射频读写器被配置为与可穿戴称重终端通信；以及
    控制器，与所述称重单元和所述射频读写器通信连接，并被配置为控制所述射频读写器向所述可穿戴称重终端发送与由所述称重单元检测到的所述被测商品的重量的变化相关的信息。
  2. 根据权利要求1所述的称重装置，其中，所述称重单元包括称重传感器和托盘，所述托盘设置在所述称重传感器上，所述称重传感器被配置为感测所述托盘上的被测商品的重量。
  3. 根据权利要求1所述的称重装置，其中，所述控制器还被配置为：
    通过所述射频读写器来检测是否存在进入通信范围的射频标签；
    响应于检测到所述射频标签存在，读取所述射频标签中与相应可穿戴称重终端有关的信息；
    通过所述称重单元来检测在检测到所述射频标签存在期间所述被测商品的重量是否发生变化；以及
    响应于检测到所述被测商品的重量减轻，通过所述射频读写器向所述相应可穿戴称重终端发送与所述被测商品的减轻的重量相关的信息。
  4. 根据权利要求3所述的称重装置，其中，所述控制器还被配置为：
    响应于检测到所述被测商品的重量增加，通过所述射频读写器从所述相应可穿戴称重终端接收与针对所述被测商品的前一次称重操作中的减轻的重量相关的信息；
    确定所接收的前一次称重操作中的减轻的重量与本次检测到的增加的重量是否相同；以及
    至少响应于确定所接收的前一次称重操作中的减轻的重量与本次检测到的增加的重量相同，通过所述射频读写器向所述相应可穿戴称重终端发送指示取消前一次称重操作的信息。
  5. 根据权利要求4所述的称重装置，还包括：
    摄像头，所述摄像头与所述控制器通信连接，
    其中，所述控制器还被配置为：
    根据所述摄像头所采集的图像信息来确定放入所述托盘的商品是否与所述被测商品一致。
  6. 根据权利要求5所述的称重装置，其中，所述控制器还被配置为：
    响应于确定所接收的前一次称重操作中的减轻的重量与本次检测到的增加的重量相同并响应于确定放入的商品与所述被测商品一致，通过所述射频读写器向所述相应可穿戴称重终端发送指示取消前一次称重操作的信息。
  7. 根据权利要求5所述的称重装置，其中，所述控制器还被配置为：
    响应于检测到所述商品与所述被测商品不一致，执行错误报警处理。
  8. 根据权利要求1所述的称重装置，还包括显示器，所述显示器与所述控制器通信连接，并被配置为显示由所述称重单元检测到的所述被测商品的重量的变化相关的信息。
  9. 一种可穿戴称重终端，包括：
    射频标签，被配置为接收由称重装置发送的与被测商品的重量的变化相关的信息，保存所述信息，并向外部装置发送所述信息；以及
    佩戴机构，被配置为将所述射频标签固定在佩戴者的手腕上，所述佩戴机构为开放式环形。
  10. 根据权利要求9所述的可穿戴称重终端，还包括：
    透射式光电传感器，被配置为检测所述佩戴者的脉搏；以及
    控制器，所述控制器与所述透射式光电传感器和所述射频标签通信连接，所述控制器根据脉搏的有无，控制是允许还是禁止向所述射频标签保存信息。
  11. 根据权利要求9所述的可穿戴称重终端，其中，所述射频标签为射频识别(RFID)标签。
  12. 根据权利要求9所述的可穿戴称重终端，其中，所述射频标签为近场通信(NFC)标签。
  13. 根据权利要求9所述的可穿戴称重终端，还包括：
    可充电式锂电池，被配置为供电。
  14. 一种称重系统，包括：
    如权利要求1-8中任一项所述的称重装置和如权利要求9-13中任一项所述的可穿戴称重终端。
  15. 一种在称重装置处的称重方法，包括：
    通过所述称重装置处的射频读写器来检测是否存在进入通信范围的射频标签；
    响应于检测到所述射频标签存在，读取所述射频标签中与相应可穿戴称重终端有关的信息；
    通过所述称重装置的称重单元来检测在检测到所述射频标签存在期间被测商品的重量是否发生变化；以及
    响应于检测到所述被测商品的重量减轻，通过所述射频读写器向所述相应可穿戴称重终端发送与所述被测商品的减轻的重量相关的信息。
  16. 根据权利要求15所述的称重方法，还包括：
    响应于检测到所述被测商品的重量增加，通过所述射频读写器从所述相应可穿戴称重终端接收与针对所述被测商品的前一次称重操作中的减轻的重量相关的信息；
    确定所接收的前一次称重操作中的减轻的重量与本次检测到的增加的重量是否相同；以及
    至少响应于确定所接收的前一次称重操作中的减轻的重量与本次检测到的增加的重量相同，通过所述射频读写器向所述相应可穿戴称重终端发送指示取消前一次称重操作的信息。
  17. 根据权利要求16所述的称重方法，还包括：
    根据所述称重装置的摄像头所采集的图像信息来确定放入所述托盘的商品是否与所述被测商品一致。
  18. 根据权利要求17所述的称重方法，还包括：
    响应于确定所接收的前一次称重操作中的减轻的重量与本次检测到的增加的重量相同并响应于确定放入的商品与所述被测商品一致，通过所述射频读写器向所述相应可穿戴称重终端发送指示取消前一次称重操作的信息。
  19. 根据权利要求17所述的称重方法，还包括：
    响应于检测到所述商品与所述被测商品不一致，执行错误报警处理。
  20. 一种在可穿戴称重终端处的称重方法，包括：
    接收由称重装置发送的与被测商品的重量的变化相关的信息；
    保存所述信息；以及
    向外部装置发送所述信息。
  21. 根据权利要求20所述的称重方法，还包括：
    响应于在预设时间长度内未接收到由所述可穿戴称重终端的透射式光电传感器发送的指示存在脉搏的信息，禁止所述可穿戴称重终端的射频标签接收信息或保存所接收的信息。
PCT/CN2018/115078 2018-04-25 2018-11-12 称重装置、可穿戴称重终端及称重方法 WO2019205584A1 (zh)

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