WO2020098133A1 - 商品定位系统及方法、带rfid读头的pda设备 - Google Patents

商品定位系统及方法、带rfid读头的pda设备 Download PDF

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WO2020098133A1
WO2020098133A1 PCT/CN2019/070429 CN2019070429W WO2020098133A1 WO 2020098133 A1 WO2020098133 A1 WO 2020098133A1 CN 2019070429 W CN2019070429 W CN 2019070429W WO 2020098133 A1 WO2020098133 A1 WO 2020098133A1
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rfid
positioning
product
information
shelf
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PCT/CN2019/070429
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English (en)
French (fr)
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侯世国
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浙江汉朔电子科技有限公司
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Publication of WO2020098133A1 publication Critical patent/WO2020098133A1/zh

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    • 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
    • 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

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  • the invention relates to the field of positioning technology, in particular to a commodity positioning system and method, and a PDA device with an RFID reading head.
  • the positioning technology is based on indoor positioning technology, there are many indoor positioning technologies, such as infrared positioning technology, ibeacon positioning technology, WIFI Positioning technology, UWB technology.
  • the accuracy is relatively high, and positioning requires the deployment of a base station.
  • the base station mainly measures the energy of the infrared signal radiated from the device under test, and solves the position of the price tag based on the measurement results of multiple base stations.
  • the positioning accuracy of this method is more than 1 meter, and is limited by the influence of the environment. For the location of the commercial supermarket near the middle, the positioning accuracy is slightly better, between 1 meter and 2 meters; at the position near the edge, the positioning accuracy becomes Poor, above 2-3 meters; this positioning accuracy is very unsuitable for the positioning of goods and shelves.
  • ibeacon positioning technology It is based on the 2.4GHz Bluetooth BLE technology, and the beacon sends information regularly, and the device under test measures the energy value of different beacon information to know the distance to each beacon, and then calculates the measured The location of the device.
  • the biggest problem with the application of this technology is high cost and low positioning accuracy.
  • the general positioning accuracy is more than 2-3 meters, and the implementation and maintenance costs are very high, which is not suitable for positioning shelves and commodities.
  • the positioning technology of WIFI has similar problems as ibeacon, and due to the low density of WIFI hotspots, its positioning accuracy is worse. It is only suitable for open and unobstructed environments, and the positioning accuracy is not required.
  • UWB ultra-wideband positioning technology is the most suitable technology for indoor positioning from a technical point of view, but due to the very high cost of UWB, it severely restricts the application of this technology in supermarkets.
  • Embodiments of the present invention provide a commodity positioning system and method, and a PDA device with an RFID read head, which uses low-cost RFID to improve the positioning accuracy of a commodity.
  • An embodiment of the present invention provides a commodity positioning system, which includes: an RFID positioning label and a PDA device with an RFID reading head, wherein the RFID positioning label is applied to an electronic price tag or a shelf layer, wherein, The electronic price tag is installed on the shelf;
  • the RFID positioning label is used to store the row and column information of the shelf and identify the location information of the shelf;
  • the PDA device with an RFID reading head is used to scan the one-dimensional code on the surface of the electronic price tag on the shelf and the one-dimensional code on the surface of the commodity when binding goods, and collect multiple RFID positioning label information through the RFID reading head, Determine the transmission energy of the RFID reading head according to the information of the plurality of RFID positioning tags, and determine the position of the corresponding product according to the transmission energy of the RFID reading head, the row and column information of the shelves in the plurality of RFID positioning tags, and the one-dimensional code on the surface of the product .
  • An embodiment of the present invention also provides a PDA device with an RFID read head.
  • the PDA device with an RFID read head includes:
  • the information collection module is used to scan the one-dimensional code on the surface of the electronic price tag and the one-dimensional code on the surface of the commodity when binding the goods, and collect multiple RFID positioning label information through the RFID reading head;
  • a transmission energy determination module configured to determine the transmission energy of the RFID read head according to the plurality of RFID positioning tag information
  • the position determination module of the commodity is used to determine the position of the corresponding commodity according to the transmission energy of the RFID read head, the row and column information of the shelves in the multiple RFID positioning tags, and the one-dimensional code on the surface of the commodity;
  • the RFID positioning label is applied to the electronic price tag or the shelf layer board, wherein the electronic price tag is installed on the shelf; the RFID positioning label stores the row and column information of the shelf and identifies the location information of the shelf.
  • An embodiment of the present invention also provides a product positioning method, which includes:
  • the PDA device with an RFID reading head When the PDA device with an RFID reading head is binding goods, it scans the one-dimensional code on the surface of the electronic price tag on the shelf and the one-dimensional code on the surface of the product, and collects multiple RFID positioning label information through the RFID reading head.
  • the RFID positioning label information determines the transmission energy of the RFID reading head, and the position of the corresponding product is determined according to the transmission energy of the RFID reading head, the row and column information of the shelves in the plurality of RFID positioning labels, and the one-dimensional code on the surface of the product;
  • the RFID positioning label is attached to the electronic price tag or the shelf layer board, wherein the electronic price tag is installed on the shelf; the RFID positioning tag stores the row and column information of the shelf and identifies the location information of the shelf.
  • An embodiment of the present invention also provides a computer device, which includes a memory, a processor, and a computer program stored on the memory and executable on the processor.
  • the processor implements the computer program to implement the commodity positioning method described above .
  • An embodiment of the present invention also provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program that executes the commodity positioning method described above.
  • the RFID positioning label is applied to the electronic price tag or the shelf layer board, wherein the RFID positioning label stores the row and column information of the shelf, used to identify the position information of the shelf, and the PDA with the RFID reading head
  • the device scans the one-dimensional code on the surface of the electronic price tag on the shelf and the one-dimensional code on the surface of the product, collects multiple RFID positioning label information through the RFID reading head, and determines the information based on the multiple RFID positioning label information.
  • the transmission energy of the RFID read head determines the position of the corresponding commodity based on the transmission energy of the RFID read head, the row and column information of the shelves in the multiple RFID positioning tags, and the one-dimensional code on the surface of the commodity.
  • the present invention uses low-cost RFID, which can improve the positioning accuracy of goods.
  • FIG. 1 is a structural block diagram of a commodity positioning system provided by an embodiment of the present invention.
  • FIG. 2 is a structural block diagram of a PDA device with an RFID read head provided by an embodiment of the present invention
  • FIG. 3 is a flowchart of a method for positioning a product provided by an embodiment of the present invention.
  • step 303 is a specific implementation step diagram of step 303 in a product positioning method provided by an embodiment of the present invention.
  • FIG. 5 is a specific implementation step diagram of step 304 of a commodity positioning method provided by an embodiment of the present invention.
  • the RFID-based product positioning system includes: an RFID positioning tag and a PDA device with an RFID read head (the RFID read head transmits identification signals) , Equivalent to an antenna.
  • the RFID system can be divided into: active, passive and semi-active systems), wherein the RFID positioning label is attached
  • the electronic price tag specifically, when the electronic price tag is installed on the shelf, the extrusion bar must be installed.
  • the RFID positioning label can be applied behind the extrusion bar. After the RFID label is applied, the electronic price tag will be installed. To the extruded strip of the shelf) or shelf shelf;
  • the RFID positioning label is used to store the row and column information of the shelf and identify the location information of the shelf;
  • the PDA device with an RFID read head is used to scan the one-dimensional code on the surface of the electronic price tag on the shelf and the one-dimensional code on the surface of the commodity when binding goods, and collect multiple RFID positioning label information through the RFID read head ( Including tag energy and ID information of the tag itself), the transmission energy of the RFID read head is determined according to the information of the plurality of RFID positioning tags, the transmission energy of the RFID read head, the row and column information of the shelves in the plurality of RFID positioning tags, The one-dimensional code on the surface of the commodity determines the position of the corresponding commodity.
  • the spacing between two adjacent RFID positioning tags should not exceed a preset distance, where the preset distance can be set to 0.5 meters.
  • the RFID positioning labels may be arranged and applied on a shelf layer in a matrix manner; or, when the RFID positioning labels are applied on an electronic price tag, the electronic price tag may be installed on a shelf in a matrix manner.
  • the RFID positioning tag may be a UHF (Ultra High Frequency, UHF) passive RFID tag
  • the PDA device with an RFID read head proposed by the present invention includes the following functional modules.
  • the term “unit” or “module” can realize a combination of software and / or hardware with predetermined functions.
  • the devices described in the following embodiments are preferably implemented in software, implementation of hardware or a combination of software and hardware is also possible and conceived.
  • PDA devices with RFID read heads include:
  • the information collection module 201 is used to scan the one-dimensional code on the surface of the electronic price tag on the shelf and the one-dimensional code on the surface of the commodity when binding goods, and collect multiple RFID positioning label information through the RFID reading head;
  • the transmission energy determination module 202 is configured to determine the transmission energy of the RFID read head according to the plurality of RFID positioning tag information
  • the commodity position determination module 203 is used to determine the position of the corresponding commodity based on the transmission energy of the RFID read head, the row and column information of the shelves in the multiple RFID positioning tags, and the one-dimensional code on the surface of the commodity.
  • the transmission energy determination module 202 is specifically configured to: determine the number of RFID positioning tags captured based on the plurality of RFID positioning tag information; according to the number of RFID positioning tags , Dynamically adjust the transmission energy of the RFID read head.
  • the position determination module 203 of the goods is specifically used for: a triangular positioning method based on signal energy, according to the RFID
  • the transmission energy of the reading head determines the distance between the product position and the RFID positioning label, and determines the position of the corresponding product according to the row and column information of the shelves in the plurality of RFID positioning labels, the distance between the product position and the RFID positioning label, and the one-dimensional code on the surface of the product .
  • the RFID positioning tags internally store the row and column information of the shelves.
  • the RFID positioning tags in the same row store the same row information; the RFID positioning tags in the same column store the same column information. This information combined with the triangular positioning method of energy can more accurately locate the position of the product.
  • This PDA device can read the energy of the RFID positioning label around the merchandise, so as to determine the location of the merchandise by triangular positioning. Because the position of the RFID positioning tag is known and distributed around the commodity, the energy can reflect the approximate distance information, so the energy of multiple RFID tags can be used to determine the position of the commodity.
  • the store clerk When the store clerk does not bind the electronic price tag and the product next to the shelf, it will cause a large error in the position of the product. At this time, the PDA will prompt the store clerk to bind to the shelf according to the captured RFID information and the calculated energy information to avoid Product positioning error.
  • an embodiment of the present invention also provides a product positioning method, as described in the following embodiment. Since the principle of the commodity positioning method to solve the problem is similar to that of the commodity positioning system, the implementation of the commodity positioning method can be referred to the implementation of the commodity positioning system, and the repetition is not repeated here.
  • FIG. 3 is a flowchart of product positioning according to an embodiment of the present invention. As shown in FIG. 3, it includes:
  • Step 301 When binding the goods, the PDA device with the RFID reading head scans the one-dimensional code on the surface of the electronic price tag on the shelf and the one-dimensional code on the surface of the goods;
  • Step 302 Collect multiple RFID positioning label information through the PDA device of the RFID reading head
  • Step 303 The PDA device with an RFID read head determines the transmission energy of the RFID read head according to the plurality of RFID positioning tag information
  • Step 304 The PDA device with an RFID read head determines the position of the corresponding commodity according to the transmission energy of the RFID read head, the row and column information of the shelves in the multiple RFID positioning tags, and the one-dimensional code on the surface of the commodity.
  • step 303 specifically includes:
  • Step 3031 Determine the number of grabbed RFID positioning tags according to the multiple RFID positioning tag information
  • Step 3032 dynamically adjust the transmission energy of the RFID read head according to the number of RFID positioning tags.
  • step 304 specifically includes:
  • Step 3041 Based on the triangular positioning method of the signal energy, the distance between the commodity position and the RFID positioning tag is determined according to the transmission energy of the RFID read head;
  • Step 3042 Determine the position of the corresponding commodity according to the row and column information of the shelves in the plurality of RFID positioning tags, the distance between the position of the commodity and the RFID positioning tag, and the one-dimensional code on the surface of the commodity.
  • An embodiment of the present invention also provides a computer device, which includes a memory, a processor, and a computer program stored on the memory and executable on the processor.
  • the processor implements the computer program to implement the commodity positioning method described above .
  • An embodiment of the present invention also provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program that executes the commodity positioning method described above.
  • the RFID-based product positioning system and method proposed by the present invention have the following advantages:
  • the RFID-based product positioning system and method proposed by the present invention do not cause any additional work content to the store clerk, and the maintenance cost of the system is very low;
  • the product positioning system and method based on RFID proposed by the present invention are the only solutions that can accurately know which layer of the product is on the shelf among various indoor positioning solutions.
  • the embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware. Moreover, the present invention may take the form of a computer program product implemented on one or more computer usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer usable program code.
  • computer usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • These computer program instructions can be provided to the processor of a general-purpose computer, special-purpose computer, embedded processing machine, or other programmable data processing device to produce a machine that enables the generation of instructions executed by the processor of the computer or other programmable data processing device
  • These computer program instructions may also be stored in a computer-readable memory that can guide a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including an instruction device, the instructions The device implements the functions specified in one block or multiple blocks of the flowchart one flow or multiple flows and / or block diagrams.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device, so that a series of operating steps are performed on the computer or other programmable device to produce computer-implemented processing, which is executed on the computer or other programmable device
  • the instructions provide steps for implementing the functions specified in one block or multiple blocks of the flowchart one flow or multiple flows and / or block diagrams.

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Abstract

一种商品定位系统及方法、带RFID读头的PDA设备，包括：RFID定位标签和带RFID读头的PDA设备，RFID定位标签贴敷于电子价签上或货架层板上，电子价签安装到货架上；RFID定位标签存储货架的行列信息；带RFID读头的PDA设备用于：在进行商品绑定时，扫描货架上电子价签表面的一维码和商品表面的一维码，通过RFID读头采集多个RFID定位标签信息，根据多个RFID定位标签信息确定RFID读头的发送能量，根据RFID读头的发送能量、多个RFID定位标签中的货架的行列信息、商品表面的一维码确定对应商品的位置。由于该方法采用低成本的无源RFID，可以提高商品的定位精度。

Description

商品定位系统及方法、带RFID读头的PDA设备
本申请要求2018年11月16日递交的申请号为201811364178.9、发明名称为“商品定位系统及方法、带RFID读头的PDA设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及定位技术领域，特别涉及一种商品定位系统及方法、带RFID读头的PDA设备。
背景技术
针对商超的内部定位，包括人员定位、货品定位和货架定位，针对货品定位和货架定位，其定位技术基于的是室内定位技术，室内定位技术有很多，比如红外定位技术、ibeacon定位技术、WIFI定位技术、UWB技术。
红外定位技术：精度相对比较高，定位需要布设基站，基站主要是测量从被测设备上辐射出来的红外信号的能量，并基于多个基站测量的结果，解算价签的位置。这种方式的定位精度在1米以上，且受限于环境的影响，对于商超靠近中间的位置，定位精度稍好，在1米到2米之间；在靠近边缘的位置，定位精度变差，在2-3米以上；这种定位精度非常不适合货品和货架的定位。
ibeacon定位技术：是基于2.4GHz的蓝牙BLE技术，信标定时发送信息，而被测设备通过测量不同信标信息的能量值，从而知道与每个信标之间的距离，进而推算出被测设备的位置。这种技术应用的最大问题是成本高、且定位精度低，一般的定位精度都做2-3米以上，且实施、维护成本非常高，不适合定位货架和商品。
WIFI的定位技术存在与ibeacon类似的问题，且由于WIFI热点布设密度很低的原因，其定位精度更差，只适宜空旷、无遮挡环境，且定位精度要求不高的环境。
UWB超宽带定位技术，从技术角度是最适合做室内定位的技术，但由于UWB的成本非常高，严重制约了这种技术在商超的应用。
发明内容
本发明实施例提供了一种商品定位系统及方法、带RFID读头的PDA设备，采用低成本的RFID，可以提高商品的定位精度。
本发明实施例提供了一种商品定位系统，该系统包括：RFID定位标签和带RFID读头的PDA设备，其中，所述RFID定位标签贴敷于电子价签上或货架层板上，其中，电子价签安装到货架上；
所述RFID定位标签用于：存储货架的行列信息，标识货架的位置信息；
所述带RFID读头的PDA设备用于：在进行商品绑定时，扫描货架上电子价签表面的一维码和商品表面的一维码，通过RFID读头采集多个RFID定位标签信息，根据所述多个RFID定位标签信息确定RFID读头的发送能量，根据所述RFID读头的发送能量、多个RFID定位标签中的货架的行列信息、商品表面的一维码确定对应商品的位置。
本发明实施例还提供了一种带RFID读头的PDA设备，该带RFID读头的PDA设备包括：
信息采集模块，用于在进行商品绑定时，扫描货架上电子价签表面的一维码和商品表面的一维码，通过RFID读头采集多个RFID定位标签信息；
发送能量确定模块，用于根据所述多个RFID定位标签信息确定RFID读头的发送能量；
商品的位置确定模块，用于根据所述RFID读头的发送能量、多个RFID定位标签中的货架的行列信息、商品表面的一维码确定对应商品的位置；
其中，RFID定位标签贴敷于电子价签上或货架层板上，其中，电子价签安装到货架上；RFID定位标签中存储货架的行列信息，标识货架的位置信息。
本发明实施例还提供了一种商品定位方法，该方法包括：
带RFID读头的PDA设备在进行商品绑定时，扫描货架上电子价签表面的一维码和商品表面的一维码，通过RFID读头采集多个RFID定位标签信息，根据所述多个RFID定位标签信息确定RFID读头的发送能量，根据所述RFID读头的发送能量、多个RFID定位标签中的货架的行列信息、商品表面的一维码确定对应商品的位置；
其中，RFID定位标签贴敷于电子价签上或货架层板上，其中，电子价签安装到货架上；RFID定位标签存储货架的行列信息，标识货架的位置信息。
本发明实施例还提供了一种计算机设备，包括存储器、处理器及存储在存储器上并可在处理器上运行的计算机程序，所述处理器执行所述计算机程序时实现上述所述商品定位方法。
本发明实施例还提供了一种计算机可读存储介质，所述计算机可读存储介质存储有执行上述所述商品定位方法的计算机程序。
在本发明实施例中，将RFID定位标签贴敷于电子价签上或货架层板上，其中，RFID定位标签中存储货架的行列信息，用来标识货架的位置信息，带RFID读头的PDA设备在进行商品绑定时，扫描货架上电子价签表面的一维码和商品表面的一维码，通过RFID读头采集多个RFID定位标签信息，根据所述多个RFID定位标签信息确定的RFID读头的发送能量，根据所述RFID读头的发送能量、多个RFID定位标签中的货架的行列信息、商品表面的一维码确定对应商品的位置。与现有技术相比，本发明采用低成本的RFID，可以提高商品的定位精度。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本发明实施例提供的一种商品定位系统结构框图；
图2是本发明实施例提供的一种带RFID读头的PDA设备结构框图；
图3是本发明实施例提供的一种商品定位方法流程图；
图4是本发明实施例提供的一种商品定位方法中步骤303具体实现步骤图；
图5是本发明实施例提供的一种商品定位方法步骤304具体实现步骤图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
在本发明实施例中，提供了一种商品定位系统，如图1所示，该基于RFID的商品定位系统包括：RFID定位标签和带RFID读头的PDA设备(RFID读头是传输识别信号的，相当于天线。根据标签的供电形式分类：依据射频标签工作所需能量的供给方式，可以将RFID系统分为：有源、无源和半有源系统)，其中，所述RFID定位标签贴敷于 电子价签上(具体的，电子价签安装到货架时，都要安装挤出条，RFID定位标签可以贴敷在挤出条背后，RFID标签贴敷完毕后，电子价签将被安装到货架的挤出条上)或货架层板上；
所述RFID定位标签用于：存储货架的行列信息，标识货架的位置信息；
所述带RFID读头的PDA设备用于：在进行商品绑定时，扫描货架上电子价签表面的一维码和商品表面的一维码，通过RFID读头采集多个RFID定位标签信息(包括标签能量和标签本身的ID信息)，根据所述多个RFID定位标签信息确定RFID读头的发送能量，根据所述RFID读头的发送能量、多个RFID定位标签中的货架的行列信息、商品表面的一维码确定对应商品的位置。
在本发明实施例中，在布置RFID定位标签时，相邻两个RFID定位标签贴敷的间距要不超过预设距离，其中，所述预设距可以设置为0.5米。所述RFID定位标签可以按照矩阵方式排列贴敷于货架层板上；或，当所述RFID定位标签贴敷于电子价签上时，所述电子价签可以按照矩阵方式安装到货架上。
其中，RFID定位标签可以为UHF(Ultra High Frequency，特高频)无源RFID标签
如图2所示，本发明提出的带RFID读头的PDA设备包括如下功能模块，以下所使用的，术语“单元”或者“模块”可以实现预定功能的软件和/或硬件的组合。尽管以下实施例所描述的装置较佳地以软件来实现，但是硬件，或者软件和硬件的组合的实现也是可能并被构想的。
带RFID读头的PDA设备包括：
信息采集模块201，用于在进行商品绑定时，扫描货架上电子价签表面的一维码和商品表面的一维码，通过RFID读头采集多个RFID定位标签信息；
发送能量确定模块202，用于根据所述多个RFID定位标签信息确定RFID读头的发送能量；
商品的位置确定模块203，用于根据所述RFID读头的发送能量、多个RFID定位标签中的货架的行列信息、商品表面的一维码确定对应商品的位置。
在本发明实施例中，由于店员在完成上述电子价签和商品绑定过程时，必须靠近货架才能完成，所以PDA与货架的距离非常近。鉴于此原因，为避免抓取过多的RFID信息，所述发送能量确定模块202具体用于：根据所述多个RFID定位标签信息确定抓取的RFID定位标签数量；根据所述RFID定位标签数量，动态调整RFID读头的发送能量。
当随着RFID读头的发送能量的调整，PDA可以稳定抓取3个以上的RFID定位标签时，所述商品的位置确定模块203具体用于：基于信号能量的三角定位方法，根据所述RFID读头的发送能量确定商品位置与RFID定位标签的距离，根据所述多个RFID定位标签中的货架的行列信息、商品位置与RFID定位标签的距离、商品表面的一维码确定对应商品的位置。
RFID定位标签内部存储了货架的行列信息，在同一行的RFID定位标签，存储有相同的行信息；在同一列的RFID定位标签，存储有相同的列信息。此信息配合能量的三角定位方法，可以较为准确的定位商品位置。
说明：门店人员在绑定商品时，要站在商品旁边，同时手持PDA设备，这个PDA设备就可以读取商品周边的RFID定位标签能量，从而三角定位判断商品的位置。因为RFID定位标签的位置是已知的，且分布在商品周边，能量又能反映大概的距离信息，所以通过多个RFID标签的能量可以判断商品位置。
当门店店员没有在货架旁边绑定电子价签和商品，会导致商品位置比较大误差，此时PDA会根据抓取的RFID信息，以及计算出的能量信息，提示店员到货架旁边绑定，避免了商品定位误差。
基于同一发明构思，本发明实施例中还提供了一种商品定位方法，如下面的实施例所述。由于商品定位方法解决问题的原理与商品定位系统相似，因此商品定位方法的实施可以参见商品定位系统的实施，重复之处不再赘述。
图3是本发明实施例的商品定位流程图，如图3所示，包括：
步骤301：带RFID读头的PDA设备在进行商品绑定时，扫描货架上电子价签表面的一维码和商品表面的一维码；
步骤302：通过RFID读头的PDA设备采集多个RFID定位标签信息；
步骤303：带RFID读头的PDA设备根据所述多个RFID定位标签信息确定RFID读头的发送能量；
步骤304：带RFID读头的PDA设备根据所述RFID读头的发送能量、多个RFID定位标签中的货架的行列信息、商品表面的一维码确定对应商品的位置。
在本发明实施例中，如图4所示，步骤303具体包括：
步骤3031：根据所述多个RFID定位标签信息确定抓取的RFID定位标签数量；
步骤3032：根据所述RFID定位标签数量，动态调整RFID读头的发送能量。
在本发明实施例中，如图5所示，步骤304具体包括：
步骤3041：基于信号能量的三角定位方法，根据所述RFID读头的发送能量确定商品位置与RFID定位标签的距离；
步骤3042：根据所述多个RFID定位标签中的货架的行列信息、商品位置与RFID定位标签的距离、商品表面的一维码确定对应商品的位置。
本发明实施例还提供了一种计算机设备，包括存储器、处理器及存储在存储器上并可在处理器上运行的计算机程序，所述处理器执行所述计算机程序时实现上述所述商品定位方法。
本发明实施例还提供了一种计算机可读存储介质，所述计算机可读存储介质存储有执行上述所述商品定位方法的计算机程序。
综上所述，与现有技术相比，本发明提出的基于RFID的商品定位系统及方法具有如下优点：
1、鉴于无源RFID的低成本优势，本发明提出的基于RFID的商品定位系统及方法的综合成本是其他室内定位技术无法比拟的；
2、本发明提出的基于RFID的商品定位系统及方法没有给门店店员造成任何额外的工作内容，且系统的维护成本非常低；
3、本发明提出的基于RFID的商品定位系统及方法是各种室内定位方案中唯一能较为准确获知商品在货架哪一层的方案。
本领域内的技术人员应明白，本发明的实施例可提供为方法、系统、或计算机程序产品。因此，本发明可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本发明可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本发明是参照根据本发明实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明实施例可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (15)

  1. 一种商品定位系统，其特征在于，包括：RFID定位标签和带RFID读头的PDA设备，其中，所述RFID定位标签贴敷于电子价签上或货架层板上，其中，电子价签安装到货架上；
    所述RFID定位标签用于：存储货架的行列信息，标识货架的位置信息；
    所述带RFID读头的PDA设备用于：在进行商品绑定时，扫描货架上电子价签表面的一维码和商品表面的一维码，通过RFID读头采集多个RFID定位标签信息，根据所述多个RFID定位标签信息确定RFID读头的发送能量，根据所述RFID读头的发送能量、多个RFID定位标签中的货架的行列信息、商品表面的一维码确定对应商品的位置。
  2. 如权利要求1所述的商品定位系统，其特征在于，两个RFID定位标签贴敷的间距不超过预设距离。
  3. 如权利要求2所述的商品定位系统，其特征在于，所述预设距离为0.5米。
  4. 如权利要求1所述的商品定位系统，其特征在于，所述RFID定位标签按照矩阵方式排列贴敷于货架层板上；
    或，当所述RFID定位标签贴敷于电子价签上时，所述电子价签按照矩阵方式安装到货架上。
  5. 如权利要求1所述的商品定位系统，其特征在于，所述RFID定位标签为UHF无源RFID标签。
  6. 如权利要求1所述的商品定位系统，其特征在于，所述带RFID读头的PDA设备具体用于：
    按照如下方式根据所述多个RFID定位标签信息确定RFID读头的发送能量：
    根据所述多个RFID定位标签信息确定抓取的RFID定位标签数量；
    根据所述RFID定位标签数量，动态调整RFID读头的发送能量。
  7. 如权利要求1所述的商品定位系统，其特征在于，所述带RFID读头的PDA设备具体用于：
    按照如下方式根据所述多个RFID定位标签信息确定RFID读头的发送能量，根据所述RFID定位标签的发送能量、多个RFID定位标签中的货架的行列信息、商品表面的一维码确定对应商品的位置：
    基于信号能量的三角定位方法，根据所述RFID读头的发送能量确定商品位置与RFID定位标签的距离，根据所述多个RFID定位标签中的货架的行列信息、商品位置与RFID定位标签的距离、商品表面的一维码确定对应商品的位置。
  8. 一种带RFID读头的PDA设备，其特征在于，包括：
    信息采集模块，用于在进行商品绑定时，扫描货架上电子价签表面的一维码和商品表面的一维码，通过RFID读头采集多个RFID定位标签信息；
    发送能量确定模块，用于根据所述多个RFID定位标签信息确定RFID读头的发送能量；
    商品的位置确定模块，用于根据所述RFID读头的发送能量、多个RFID定位标签中的货架的行列信息、商品表面的一维码确定对应商品的位置；
    其中，RFID定位标签贴敷于电子价签上或货架层板上，其中，电子价签安装到货架上；RFID定位标签中存储货架的行列信息，标识货架的位置信息。
  9. 如权利要求8所述的带RFID读头的PDA设备，其特征在于，所述发送能量确定模块具体用于：
    根据所述多个RFID定位标签信息确定抓取的RFID定位标签数量；
    根据所述RFID定位标签数量，动态调整RFID读头的发送能量。
  10. 如权利要求8所述的带RFID读头的PDA设备，其特征在于，所述商品的位置确定模块具体用于：
    基于信号能量的三角定位方法，根据所述RFID读头的发送能量确定商品位置与RFID定位标签的距离，根据所述多个RFID定位标签中的货架的行列信息、商品位置与RFID定位标签的距离、商品表面的一维码确定对应商品的位置。
  11. 一种商品定位方法，其特征在于，包括：
    带RFID读头的PDA设备在进行商品绑定时，扫描货架上电子价签表面的一维码和商品表面的一维码，通过RFID读头采集多个RFID定位标签信息，根据所述多个RFID定位标签信息确定RFID读头的发送能量，根据所述RFID读头的发送能量、多个RFID定位标签中的货架的行列信息、商品表面的一维码确定对应商品的位置；
    其中，RFID定位标签贴敷于电子价签上或货架层板上，其中，电子价签安装到货架上；RFID定位标签存储货架的行列信息，标识货架的位置信息。
  12. 如权利要求11所述的商品定位方法，其特征在于，按照如下方式根据所述多个RFID定位标签信息确定RFID读头的发送能量：
    根据所述多个RFID定位标签信息确定抓取的RFID定位标签数量；
    根据所述RFID定位标签数量，动态调整RFID读头的发送能量。
  13. 如权利要求11所述的商品定位方法，其特征在于，按照如下方式根据所述多个RFID定位标签信息确定RFID读头的发送能量，根据所述RFID读头的发送能量、多个RFID定位标签中的货架的行列信息、商品表面的一维码确定对应商品的位置：
    基于信号能量的三角定位方法，根据所述RFID读头的发送能量确定商品位置与RFID定位标签的距离，根据所述多个RFID定位标签中的货架的行列信息、商品位置与RFID定位标签的距离、商品表面的一维码确定对应商品的位置。
  14. 一种计算机设备，包括存储器、处理器及存储在存储器上并可在处理器上运行的计算机程序，其特征在于，所述处理器执行所述计算机程序时实现权利要求11至13任一所述商品定位方法。
  15. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质存储有执行权利要求11至13任一所述商品定位方法的计算机程序。
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