WO2012013005A1 - 基于低层读写协议(llrp)的路面射频识别方法、系统及阅读器 - Google Patents

基于低层读写协议(llrp)的路面射频识别方法、系统及阅读器 Download PDF

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Publication number
WO2012013005A1
WO2012013005A1 PCT/CN2010/080335 CN2010080335W WO2012013005A1 WO 2012013005 A1 WO2012013005 A1 WO 2012013005A1 CN 2010080335 W CN2010080335 W CN 2010080335W WO 2012013005 A1 WO2012013005 A1 WO 2012013005A1
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Prior art keywords
label
time
service operation
operation result
reader
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PCT/CN2010/080335
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English (en)
French (fr)
Inventor
程亮
赵董兴
刘朝阳
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中兴通讯股份有限公司
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Publication of WO2012013005A1 publication Critical patent/WO2012013005A1/zh

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Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06KGRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10009Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
    • G06K7/10019Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves resolving collision on the communication channels between simultaneously or concurrently interrogated record carriers.
    • G06K7/10029Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves resolving collision on the communication channels between simultaneously or concurrently interrogated record carriers. the collision being resolved in the time domain, e.g. using binary tree search or RFID responses allocated to a random time slot
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06KGRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10009Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
    • G06K7/10297Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves arrangements for handling protocols designed for non-contact record carriers such as RFIDs NFCs, e.g. ISO/IEC 14443 and 18092
    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07BTICKET-ISSUING APPARATUS; FARE-REGISTERING APPARATUS; FRANKING APPARATUS
    • G07B15/00Arrangements or apparatus for collecting fares, tolls or entrance fees at one or more control points
    • G07B15/06Arrangements for road pricing or congestion charging of vehicles or vehicle users, e.g. automatic toll systems
    • G07B15/063Arrangements for road pricing or congestion charging of vehicles or vehicle users, e.g. automatic toll systems using wireless information transmission between the vehicle and a fixed station

Definitions

  • Pavement radio frequency identification method, system and reader based on low-level read-write protocol (LLRP) Pavement radio frequency identification method, system and reader based on low-level read-write protocol (LLRP)
  • the invention relates to the technical field of a road surface radio frequency identification system in the Internet of Things, in particular to a method, a system and a reader for a road surface radio frequency identification based on a LLRP protocol based on a Low Level Reader Protocal (LLRP) protocol.
  • LLRP Low Level Reader Protocal
  • Radio Frequency Identification systems include tags and readers. It is a non-contact automatic identification technology that automatically recognizes target objects and acquires relevant data through radio frequency signals. The identification work can be performed in various harsh environments without manual intervention. RFID technology recognizes high-speed moving objects and recognizes multiple labels at the same time, making operation quick and easy.
  • Figure 1 is a model of a road radio frequency acquisition system.
  • the reader covers two lanes with two antennas, each antenna covers two lanes, and the reader operates two antennas separately by polling.
  • antenna 1 transmits modulation, and the encoded read and write are performed.
  • the instruction information is sent to the electronic tag A of the vehicle, and a series of air interface commands are performed to complete the specified reading and writing operations.
  • Antenna 1 then performs the same operation on the other tags within the effective transaction distance of antenna 1 in the same manner. Until the operation of the antenna 1 all the tags within the effective transaction distance. At this time, the reader will switch to the antenna 2, and the processing flow of the antenna 2 to the tag is the same as that of the antenna 1.
  • the antenna 2 has to perform the same reading and writing instructions on the in-vehicle electronic tags ⁇ , D, and E, respectively. , then the reader will continue to switch to antenna 1 and continue the loop operation above.
  • Determining the main factor in the decline in the success rate of a transaction is the key to solving the problem.
  • the operation time of an electronic label is 6 times the operation time of a single electronic label.
  • the single operation time of the added label will increase continuously due to the movement behavior of the label and the unevenness of the RF field strength. And instability, business operations of electronic tags may operate several times to be successful. However, as the number of tags increases, the number of operations for each tag is equally shared. Some tags may only be manipulated once or simply not manipulated, which may result in data loss and other failures.
  • the main object of the present invention is to provide an LLRP-based road radio frequency identification method, system and reader, which can improve the recognition success rate of the reader at low cost.
  • the invention provides an LLRP-based road surface radio frequency identification method, which comprises:
  • the reader counts a label
  • the new business operation result node is re-established, and all the business operation results are set as failures. If not, the business operation result node is not operated.
  • the setting of all the service operation results is a failure
  • the method further includes: delivering a service operation command to the label according to the result of the failure of the service operation result; And receiving a service operation result that is returned by the label and responding to the service operation command; and performing an upper limit of the service operation result of the label according to the service operation result reporting time interval of the label.
  • the step of performing reporting of the service operation result of the label according to the service operation result reporting time interval of the label comprises:
  • the service operation result of the label is reported, and the latest reporting time of the label is updated. If the T1 minus T1 is less than the preset reporting filtering time N2, the report is not reported.
  • the service operation result of the label, and updating the reporting time of the label is the system time.
  • the time N2 is minus 2 times the 1.5 of the time N1.
  • the invention also provides a reader comprising:
  • An inventory unit which is set to: inventory a label
  • a node time judging unit configured to: determine whether a service operation result node of the tag has a time exceeding a predetermined time N1;
  • a node operation unit configured to: if the judgment result of the node time judging unit is yes, re-establish a new service operation result node, and set all the service operation results to be failure, if the judgment result of the node time judging unit is no, Then, the business operation result node is not operated.
  • the reader further comprises:
  • the command issuing unit is configured to: deliver a service operation command to the label according to the failure result of the node operation unit;
  • the operation result receiving unit is configured to: receive a business operation result returned by the label in response to the business operation command;
  • the service operation result reporting unit is configured to: report the service operation result of the label according to the service operation result reporting time interval of the label.
  • the service operation result reporting unit includes a time comparison unit and a service operation unit, where:
  • the time comparison unit is configured to: compare the current time T1 reported by the service operation result of the label with the reporting time T2 of the service operation result of the previous label, and determine that T2 minus T1 is No greater than the preset report filtering time N2;
  • the service operation unit is configured to: according to the judgment result of the time comparison unit, if yes, report the label service operation result, and update the latest report time of the label, if not, the service operation of the label is not reported As a result, the reporting time of the tag is updated to be the system time.
  • the time N2 is 1.5 to 2 times the time N1.
  • the invention also provides a road surface radio frequency identification system based on LLRP protocol, comprising: a reader and a label, wherein
  • the reader is configured to: check the label, according to the response of the label to the inventory, determine whether the service operation result node of the label has a time exceeding a predetermined time N1; if it exceeds, re-establish a new service operation result Node, and set all the business operation results as failures; if not, the business operation result nodes are not operated;
  • the tag is configured to: respond to an inventory of the reader.
  • the reader is further configured to: deliver a service operation command to the label according to a result of the failure of the service operation result; receive a service operation result returned by the label and respond to the service operation command; compare the The current time T1 reported by the service operation result of the label and the reporting time T2 of the service operation result of the previous label; if T2 minus T1 is greater than the preset report filtering time N2, the service operation result of the label is reported, and Updating the latest reporting time of the label, if the T1 minus T1 is less than the preset reporting filtering time N2, the service operation result of the label is not reported, and the reporting time of the label is updated to be the system time;
  • the tag is further configured to: return a business operation result responsive to the business operation command to the reader.
  • the technical solution of the present invention has the following beneficial effects:
  • the LLRP-based road surface radio frequency identification method, system and reader provided by the present invention can judge and operate the label by a certain time interval, thereby improving the recognition of the reader. Rate, the throughput of the reader is greatly improved; at the same time, the cost is low and easy to implement.
  • FIG. 1 is a schematic diagram of a road surface radio frequency collecting system provided by the prior art
  • FIG. 2 is a flowchart of a method according to an embodiment of the present invention
  • FIG. 3 is another flowchart of a method according to an embodiment of the present invention
  • FIG. 4 is a schematic structural diagram of a reader according to an embodiment of the present invention.
  • FIG. 5 is another schematic structural diagram of a reader according to an embodiment of the present disclosure.
  • FIG. 6 is a structural diagram of a system according to an embodiment of the present invention.
  • the method of the present invention is implemented based on the LLRP standard protocol.
  • the LLRP standard protocol provides control over air interface operations and air interface protocol command parameters, providing access to lower level read and write operations.
  • Reader Operation (RO) rules are provided to drive the reader to inventory tags, providing access operation (AO) rules to drive the reader to access tags (read, write, lock, kill, etc.).
  • RO Reader Operation
  • AO access operation
  • multiple antennas can be configured, the reader performs antenna configuration according to the RO rule, and the antenna is scheduled, and the label is counted by the antenna.
  • the reader defines the access operation pair according to the AO rule ( Read, write, lock, or kill, etc.) perform business operations on the tag. After the business operation is completed, it is reported to the background in a unified report form.
  • the embodiment of the invention provides a road surface radio frequency identification method based on the LLRP protocol. As shown in FIG. 2, the method includes the following steps:
  • the reader identifies the tag by means of a radio frequency signal and acquires data of the tag, or performs business operations on the tag, such as reading, writing, locking or killing.
  • S102. Determine whether the service operation result node of the label has a presence time exceeding a predetermined time.
  • N1 is preset, and it depends on the actual situation, such as how long it takes for a business operation to determine.
  • the label is operated, for example, a new business operation result node is newly established, and all the business operation results are set to be failed, so as to re-operate the label, the business operation result node is an action process. , the node exists for a period of time.
  • the method provided by the embodiment can judge and operate the label by a certain time interval, and does not need to perform repeated operations on a label that has been operated by the service, thereby improving the recognition success rate of the reader, and the throughput of the reader is greatly improved; Low cost and easy to implement.
  • Another embodiment of the present invention provides a method for detecting a road surface radio frequency based on the LLRP protocol.
  • the method is implemented based on the LLRP standard protocol.
  • the method is specifically described below in conjunction with the LLRP protocol. As shown in Figure 3, the method includes the steps of:
  • the reader counts a label, and determines whether the service operation result node of the label has a time exceeding a predetermined time N1.
  • the reader schedules the RO rule to perform label inventory, and determines the time when the node of the service operation result of the label is stored, and determines whether the service operation result node of the label exceeds the predetermined time N1.
  • the service operation result node exists for more than a predetermined time N1 (ie, a time window)
  • the service operation result node is deleted, and a new service operation result node is established, and according to the AcessOP configured in the AO (ie, the label is performed) Read, write, etc.) Set all business operation results to failure. 5204.
  • the service operation command is sent to the label according to the result of the failure of the service operation result.
  • the operation operation result is a failure operation, and the service operation command is sent to the label whose service operation result is a failure.
  • step S206 Perform a service operation result of the label according to a service operation result reporting time interval of the label.
  • the step S206 specifically includes the following steps:
  • the report is reported to the background in a standard report format.
  • T1 is less than the preset reporting time N2
  • the service operation result of the label is not reported to the background, and the reporting time of the label is updated to be the system time.
  • the above steps S201-S203 are operation filtering.
  • N1 for a label, if the label is repeatedly counted, the completed and successful operation of the reader is no longer performed after the business operation.
  • Operation Performs the business operations of other labels that have been completed and are not successful. After all the operations are successful, all service operations are reported to the background. If all the business operations in the N1 time are not completely successful, the labels of the successful business operations are reported to the background.
  • the process of the steps S204-S206 is: report filtering, that is, each time the data is reported, it is compared with the previous reporting time. If the interval is greater than N2, the report is reported to the background, otherwise the report is not updated and updated. The last report time. If this report is an incomplete transaction Recording, the time of this report is not recorded.
  • the report filtering can also play the role of business operation filtering, that is, if the interval between the check and the label is not greater than N2, then even if the operation is completed, it is not necessary to operate.
  • the time of N2 can be freely configured, or it can be configured to 1.5 ⁇ 2 x Nl time.
  • the upper filter mainly plays the following role: For example, if a car is always stopped under the antenna, if it is open for filtering and operation filtering, it will not be reported. If the report filtering is turned off, every N1 Time is reported once. In addition, if the report filtering and operation filtering are on, if a car N1 time is counted, the next N1 time is turned off, and the next N1 time is turned back, then the report is also reported, and the report is filtered and operated. Filtration is not interchangeable.
  • the method provided by the embodiment can judge and operate the label by a certain time interval, perform operation filtering and report filtering, and can perform the repeated operation of the label that has been operated by the service, thereby improving the recognition success rate of the reader, and the reader
  • the throughput is greatly improved; at the same time, the cost is low and easy to implement.
  • an embodiment of the present invention further provides a reader, including:
  • An inventory unit 410 configured to inventory a label
  • the node time judging unit 420 is configured to determine whether the service operation result node of the label has a time exceeding a predetermined time N1;
  • the node operation unit 430 is configured to: if the determination result of the node time judging unit 420 is yes, re-establish a new service operation result node, and set all the service operation results to be failure, if not, the service operation result node is not Take action.
  • the above reader further includes:
  • the command issuing unit 440 is configured to send a service operation command to the label according to the failure result of the node operation unit 430, and the operation result receiving unit 450 is configured to receive a service operation result that is returned by the label and is in response to the service operation command;
  • the service operation result reporting unit 460 is configured to perform reporting of the service operation result of the label according to the service operation result reporting time interval of the label.
  • the service operation result upper unit 450 includes a time comparison unit 461 and a service operation unit 462, where:
  • the time comparison unit 461 is configured to compare the current time T1 reported by the service operation result of the foregoing label with the reporting time T2 of the service operation result of the previous label, and determine whether T2 minus T1 is greater than a preset report filtering time N2;
  • the service operation unit 462 is configured to: according to the judgment result of the time comparison unit 461, if yes, report the label service operation result, and update the latest report time of the label, if not, the service operation of the label is not reported. As a result, the reporting time of the tag is updated to be the system time.
  • the time N2 is 1.5 to 2 times the time N1.
  • the embodiment of the present invention further provides a road surface radio frequency identification system based on the LLRP protocol, including: a reader 510 and a tag 520, wherein
  • the reader 510 is configured to check the label 520, and determine, according to the response of the label 520 to the inventory, whether the service operation result node of the label has a time exceeding a predetermined time N1; if it exceeds, re-establish a new service operation. Result node, and set all the business operation results as failure, if not exceeded, the above business operation result node is not operated;
  • the tag 520 is configured to respond to the inventory of the reader 510.
  • the reader 510 is further configured to: send a service operation command to the label 520 according to the result of the failure of the service operation result; and receive a service operation result returned by the label 520 in response to the service operation command;
  • the tag 520 is further configured to return a service operation result in response to the service operation command to the reader 510.
  • the technical solution of the present invention has the following beneficial effects:
  • the LLRP-based road surface radio frequency identification method, system and reader provided by the present invention can judge and operate the label by a certain time interval, thereby improving the recognition of the reader. Rate, the throughput of the reader is greatly improved; at the same time, the cost is low and easy to implement.

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Description

基于低层读写协议 (LLRP) 的路面射频识别方法、 系统及阅读器
技术领域
本发明涉及物联网中路面射频识别系统技术领域, 具体是指在低层读写 协议( Low Level Reader Protocal, LLRP ) 的基础上, 提供一种基于 LLRP协 议的路面射频识别方法、 系统及阅读器。
背景技术
射频识别 ( Radio Frequency Identify, RFID ) 系统包括标签和阅读器。 是 一种非接触式的自动识别技术, 它通过射频信号自动识别目标对象并获取相 关数据, 识别工作无须人工干预, 可工作于各种恶劣环境。 RFID技术可识别 高速运动物体并可同时识别多个标签, 操作快捷方便。
以上的优势促使 RFID技术在电子车牌领域的迅速拓展。 图 1是路面射 频釆集系统的模型。
参照图 1所示, 阅读器接两根天线覆盖 4个车道, 每根天线覆盖两个车 道, 阅读器通过轮询的方式分别操作两个天线, 首先天线 1发送调制, 编码 后的读、 写等指令信息给车载的电子标签 A, 进行一系列的空口命令, 完成 规定的读, 写等操作。 然后天线 1用同样的方式对天线 1有效交易距离内的 其他标签进行同样的操作。 直到操作完天线 1有效交易距离内的所有标签。 这时, 阅读器会切换到天线 2, 天线 2对标签的处理流程和天线 1是相同的, 在图中, 天线 2要分别对车载电子标签〇、 D、 E进行相同的读、 写等指令, 然后阅读器会继续切换到天线 1 , 继续上面的循环操作。
但是在实际的路面操作过程中, 经常会出现车载电子标签出现漏读, 或 漏写的情况。 举例子说明: 设置读取电子标签的用户 (USR ) 区的两段: 第 一段读起始地址 9, 长度为 2个字; 第二段读起始地址为 12, 长度为 6个字。 当车辆比较多, 也就是在短时间内有多个标签通过天线的有效交易区域的时 候, 经常出现 1个或多个标签的第一段区域或第二段区域没有被成功读出。
还有一种测试情况: 在以上的测试条件下, 如果一台载有电子标签的车 辆一直停在天线的有效交易区域内, 对经过的电子标签的交易成功率也会下 降。
确定交易成功率的下降的主要因素, 是解决问题的关键。
分析实际的应用情况, 图 1所示, 当 A、 B、 C、 D、 E五个电子标签在 天线的有效读写区域时, 如上面所说的天线循环操作, 在天线 1和 2完成对 五个标签的两段读操作后, 再次进行下一个天线 1和天线 2的周期时, 如果 五个标签没有离开天线的有效交易区域, 不管五个标签的业务操作结果是否 成功, 都会对 A、 B、 C、 D、 E重复业务操作。 这时如果一个电子标签 F进 入这个天线有效交易区域时, 阅读器也要对 A、 B、 C、 D、 E电子标签进行 业务操作, 操作完成后, 才会对 F这个标签进行操作, 这样对一个电子标签 的操作时间就是 6倍的单个电子标签的操作时间, 当标签数不断增多时, 后 增加的标签的单次操作时间就会不断增加, 由于标签的运动行为和射频场强 的不均匀和不稳定性, 电子标签的业务操作可能操作几次才能成功。 但是随 着标签数的增多, 每个标签的操作次数也被均摊, 可能有的标签只被操作一 次或者干脆没有被操作过, 这样就导致数据的漏读等失败现象。
以上的成功率提高可以通过增加阅读器的数量来实现, 釆用一个阅读器 对应一个车道, 这样相当于提高两倍的阅读器的识别能力。 但是这样做的成 本过高。 发明内容
本发明的主要目的是提供一种基于 LLRP的路面射频识别方法、 系统及 阅读器, 能够低成本的提高阅读器的识别成功率。
本发明解决其技术问题所釆用的技术方案是:
本发明提供一种基于 LLRP的路面射频识别方法, 其包括:
阅读器清点一个标签;
判断所述标签的业务操作结果节点存在时间是否超过预定的时间 N1 ; 以 及
如果超过, 则重新建立新的业务操作结果节点, 并设置所有的业务操作 结果为失败, 如果没有超过, 则不对所述业务操作结果节点进行操作。
优选地, 所述设置所有的业务操作结果为失败, 之后, 该方法还包括: 根据所述业务操作结果失败的结果下发业务操作命令给所述标签; 接收所述标签返回的响应所述业务操作命令的业务操作结果; 以及 根据所述标签的业务操作结果上报时间间隔进行该标签的业务操作结果 的上才艮。
优选地, 所述根据所述标签的业务操作结果上报时间间隔进行该标签的 业务操作结果的上报的步骤包括:
比较所述标签的业务操作结果上报的当前时间 T1 与前一次所述标签的 业务操作结果的上报时间 T2;
如果 T2减去 T1大于预置的上报过滤时间 N2,则上报该标签的业务操作 结果, 并更新所述标签的最新上报时间, 如果 T2减去 T1小于预置的上报过 滤时间 N2, 则不上报该标签的业务操作结果, 并更新所述标签的上报时间为 系统时间。
优选地, 所述时间 N2为所述时间 N1的 1.5减去 2倍。
本发明还提供一种阅读器, 其包括:
清点单元, 其设置为: 清点一个标签;
节点时间判断单元, 其设置为: 判断所述标签的业务操作结果节点存在 时间是否超过预定的时间 N1; 以及
节点操作单元, 其设置为: 如果节点时间判断单元的判断结果为是, 则 重新建立新的业务操作结果节点, 并设置所有的业务操作结果为失败, 如果 节点时间判断单元的判断结果为否,则不对所述业务操作结果节点进行操作。
优选地, 所述阅读器还包括:
命令下发单元, 设置为: 根据所述节点操作单元的失败结果下发业务操 作命令给所述标签;
操作结果接收单元, 设置为: 接收所述标签返回的响应所述业务操作命 令的业务操作结果; 以及
业务操作结果上报单元, 设置为: 根据所述标签的业务操作结果上报时 间间隔进行该标签的业务操作结果的上报。
优选地,所述业务操作结果上报单元包括时间比较单元和业务操作单元, 其中:
所述时间比较单元设置为: 比较所述标签的业务操作结果上报的当前时 间 T1与前一次所述标签的业务操作结果的上报时间 T2, 判断 T2减去 T1是 否大于预置的上报过滤时间 N2;
所述业务操作单元设置为: 根据所述时间比较单元的判断结果, 如果是, 则上报该标签业务操作结果, 并更新所述标签的最新上报时间, 如果否, 则 不上报该标签的业务操作结果, 并更新所述标签的上报时间为系统时间。
优选地, 所述时间 N2为所述时间 N1的 1.5至 2倍。
本发明还提供一种基于 LLRP协议的路面射频识别系统, 包括: 阅读器 和标签, 其中,
所述阅读器设置为: 清点标签, 根据所述标签对所述清点的响应, 判断 所述标签的业务操作结果节点存在时间是否超过预定的时间 N1 ; 如果超过, 则重新建立新的业务操作结果节点, 并设置所有的业务操作结果为失败, 如 果没有超过, 则不对所述业务操作结果节点进行操作;
所述标签设置为: 对所述阅读器的清点进行响应。
优选地, 所述阅读器还设置为: 根据所述业务操作结果失败的结果下发 业务操作命令给所述标签; 接收所述标签返回的响应所述业务操作命令的业 务操作结果;比较所述标签的业务操作结果上报的当前时间 T1与前一次所述 标签的业务操作结果的上报时间 T2;如果 T2减去 T1大于预置的上报过滤时 间 N2, 则上报所述标签的业务操作结果, 并更新所述标签的最新上报时间, 如果 T2减去 T1小于预置的上报过滤时间 N2, 则不上报所述标签的业务操 作结果, 并更新所述标签的上报时间为系统时间;
所述标签还设置为: 向所述阅读器返回响应所述业务操作命令的业务操 作结果。
实施本发明的技术方案, 具有以下有益效果: 本发明提供的基于 LLRP 协议的路面射频识别方法、 系统及阅读器, 通过间隔一定的时间来对标签进 行判断和操作, 能够提高阅读器的识别成功率, 阅读器的吞吐量大大提升; 同时成本低, 易于实现。
附图概述
图 1为现有技术提供的路面射频釆集系统的示意图;
图 2为本发明实施例提供的方法的一流程图; 图 3为本发明实施例提供的方法的另一流程图;
图 4为本发明实施例提供的阅读器的一结构示意图;
图 5为本发明实施例提供的阅读器的另一结构示意图;
图 6为本发明实施例提供的系统结构图。
本发明目的的实现、 功能特点及优点将结合实施例, 参照附图做进一步 说明。
本发明的较佳实施方式
为了使本发明的目的、 技术方案及优点更加清楚明白, 以下结合附图及 实施例, 对本发明进行进一步详细说明。 应当理解, 此处所描述的具体实施 例仅仅用以解释本发明, 并不用于限定本发明。
本发明的方法基于 LLRP标准协议实现的。 LLRP标准协议提供了对空口 操作和空口协议命令参数的控制能力, 提供更底层读写操作的访问能力。
LLRP标准协议核心思想是规则驱动的方式。 提供阅读器操作 (RO )规 则来驱动阅读器清点标签, 提供访问操作(AO )规则来驱动阅读器来访问标 签(读、 写、 锁、 杀死等) 。 根据 RO规则, 可配置多根天线, 阅读器根据 RO规则进行天线配置, 对天线进行调度, 通过天线对标签进行清点操作, 当 清点上标签后, 阅读器在根据 AO规则中定义访问操作对(读、 写、 锁或者 杀死等)对标签进行业务操作。 业务操作完成后, 以一种统一的上报形式, 上报给后台。
本发明实施例提供一种基于 LLRP协议的路面射频识别方法, 如图 2所 示, 该方法包括步骤:
S101、 阅读器清点一个标签;
该阅读器通过射频信号识别标签, 并获取该标签的数据, 或者对该标签 进行业务操作, 如读、 写、 锁或者杀死等。 S102、 判断上述标签的业务操作结果节点存在时间是否超过预定的时间
N1 ;
该时间 N1 为预置的, 根据实际情况, 如一个业务操作需要多少时间来 确定的。
S103、 如果超过, 则重新建立新的业务操作结果节点, 并设置所有的业 务操作结果为失败, 如果没有超过, 则不对上述业务操作结果节点进行操作。
根据步骤 S102的判断结果,对标签进行操作, 如重新建立新的业务操作 结果节点, 并设置所有的业务操作结果为失败, 以便于重新对该标签进行操 作, 该业务操作结果节点为一个动作过程, 该节点存在时间为一个时间段。
该实施例提供的方法通过间隔一定的时间来对标签进行判断和操作, 无 需对一个已经业务操作过的标签进行重复操作, 能够提高阅读器的识别成功 率, 阅读器的吞吐量大大提升; 同时成本低, 易于实现。
本发明实施例提供另一种基于 LLRP协议的路面射频识别方法, 该方法 基于 LLRP标准协议实现的, 下面结合该 LLRP协议来具体描述该方法。 如 图 3所示, 该方法包括步骤:
5201、 阅读器清点一个标签, 判断上述标签的业务操作结果节点存在时 间是否超过预定的时间 Nl。
阅读器调度 RO规则进行标签清点, 判断被清点的标签的业务操作结果 节点已存在的时间, 判断上述标签的业务操作结果节点存在时间是否超过预 定的时间 Nl。
5202、 如果没有超过, 则不对上述业务操作结果节点进行操作;
5203、 如果超过, 则重新建立新的业务操作结果节点, 并设置所有的业 务操作结果为失败。
如果上述业务操作结果节点存在超过预定的时间 N1 (即: 时间窗), 那 么删除该业务操作结果节点,并建立一个新的业务操作结果节点,并根据 AO 中配置的 AcessOP (即对标签进行的读、 写等操作)设置所有的业务操作结 果为失败。 5204、根据上述业务操作结果失败的结果下发业务操作命令给上述标签; 取上述业务操作结果为失败的操作, 下发业务操作命令给上述业务操作 结果为失败的标签。
5205、 接收上述标签返回的响应上述业务操作命令的业务操作结果; 如 果还有失败的业务操作结果, 则进行步骤 S204, 如果没有失败的业务操作结 果, 则进行步骤 S206。
接收上述业务操作结果为失败的标签返回的响应上述业务操作命令的业 务操作结果。
5206、 根据所述标签的业务操作结果上报时间间隔进行该标签的业务操 作结果的上 ·¾。 更为具体的实施例中, 如图 3所示, 该步骤 S206具体包括步 骤:
S261、比较上述标签的业务操作结果上报的当前时间 T1与前一次上述标 签的业务操作结果的上报时间 T2。 即: 比较该标签相邻两次业务操作结果的 时间间隔与预置的上报过滤时间 Ν2的大小。
S262、 如果 T2减去 T1 大于预置的上报过滤时间 N2, 则将所述业务操 作结果进行上报后台, 并更新上述标签的最新上报时间, 进行步骤 S201。
本步骤中, 以标准的报告 ( report )格式上报报告到后台。
S263、 如果 T2减去 T1小于预置的上报过滤时间 N2, 则不将上述标签 的业务操作结果上报到后台, 并更新上述标签的上报时间为系统时间。
其中上述步骤 S201-S203过程为操作过滤,在预置时间 N1内,对于一个 标签来说, 如果这个标签被重复清点到, 已完成的且成功的被阅读器进行业 务操作后就不再执行业务操作, 只进行已完成的且未成功的其他标签的业务 操作, 待所有业务操作成功后, 上报所有业务操作结果给后台。 如果 N1 时 间内所有业务操作并没有完全成功, 则将已成功的业务操作的标签进行上报 到后台。
步骤 S204-S206的过程为: 上报过滤, 即每回数据上报时, 都要和上一 次的上报时间做比较, 如果相隔时间大于 N2, 则进行上报, 上报给后台, 否 则不进行上报, 并更新最后一次的上报时间。 如果本次上报的为不完整交易 记录, 则不记录本次上报时间。 同时, 上报过滤可同时起到业务操作过滤的 作用, 即如果清点到标签发现相隔时间没有大于 N2, 这时即使操作完成也不 进行上 所以即可不必操作。 另外, N2的时间可以自由配置, 也可以配置 为 1.5 ~ 2 x Nl时间。
上 ^艮过滤主要起如下的作用: 比如一辆车一直在天线下停着, 这时它如 果上报过滤和操作过滤都开着, 则它一直不被上报, 如果关掉上报过滤, 则 每 N1 时间上报一次。 另外, 如果上报过滤和操作过滤都开着, 如果一辆车 N1时间被清点到, 下一个 N1时间开走了, 有下一 N1时间开回来了, 则这 时也进行上报, 上报过滤和操作过滤是不可相互替代的。
该实施例提供的方法通过间隔一定的时间来对标签进行判断和操作, 进 行操作过滤和上报过滤, 无需对一个已经业务操作过的标签进行重复操作, 能够提高阅读器的识别成功率, 阅读器的吞吐量大大提升; 同时成本低, 易 于实现。
如图 4所示, 本发明实施例还提供一种阅读器, 包括:
清点单元 410, 用于清点一个标签;
节点时间判断单元 420 , 用于判断上述标签的业务操作结果节点存在时 间是否超过预定的时间 N1 ;
节点操作单元 430, 用于: 如果节点时间判断单元 420的判断结果为是, 则重新建立新的业务操作结果节点, 并设置所有的业务操作结果为失败, 如 否, 则不对上述业务操作结果节点进行操作。
进一步的实施例中, 如图 5所示, 上述阅读器还包括:
命令下发单元 440, 用于根据上述节点操作单元 430的失败结果下发业 务操作命令给上述标签; 操作结果接收单元 450 , 用于接收上述标签返回的响应上述业务操作命 令的业务操作结果;
业务操作结果上报单元 460 , 用于根据所述标签的业务操作结果上报时 间间隔进行该标签的业务操作结果的上报。 进一步的实施例中, 如图 5所示, 所述业务操作结果上 ^艮单元 450包括 时间比较单元 461和业务操作单元 462 , 其中:
时间比较单元 461 , 用于比较上述标签的业务操作结果上报的当前时间 T1与前一次上述标签的业务操作结果的上报时间 T2, 判断 T2减去 T1是否 大于预置的上报过滤时间 N2;
业务操作单元 462, 用于根据所述时间比较单元 461 的判断结果, 如果 是, 则上报该标签业务操作结果, 并更新所述标签的最新上报时间, 如果否, 则不上报该标签的业务操作结果, 并更新所述标签的上报时间为系统时间。
其中, 优选的实施例中, 上述时间 N2为上述时间 N1的 1.5至 2倍。
如图 6所示, 本发明实施例还提供一种基于 LLRP协议的路面射频识别 系统, 包括: 阅读器 510和标签 520, 其中,
上述阅读器 510, 用于清点标签 520, 根据所述标签 520对所述清点的响 应, 判断上述标签的业务操作结果节点存在时间是否超过预定的时间 N1 ; 如 果超过, 则重新建立新的业务操作结果节点, 并设置所有的业务操作结果为 失败, 如果没有超过, 则不对上述业务操作结果节点进行操作;
上述标签 520 , 用于对所述阅读器 510的清点进行响应。
进一步的实施例中, 上述阅读器 510, 还用于根据上述业务操作结果失 败的结果下发业务操作命令给上述标签 520; 接收上述标签 520返回的响应 上述业务操作命令的业务操作结果; 比较上述标签 520的业务操作结果上报 的当前时间 T1与前一次上述标签的业务操作结果的上报时间 T2;如果 T2减 去 T1大于预置的上报过滤时间 N2, 则上报上述标签 520的业务操作结果, 并更新上述标签 520的最新上报时间,如果 T2减去 T1小于预置的上报过滤 时间 N2, 则不上报上述标签 520的业务操作结果, 并更新上述标签 520的上 ^艮时间为系统时间;
上述标签 520, 还用于向所述阅读器 510返回响应所述业务操作命令的 业务操作结果。 以上上述仅为本发明的较佳实施例而已, 并不用以限制本发明, 凡在本 发明的精神和原则之内所作的任何修改、 等同替换和改进等, 均应包含在本 发明的保护范围之内。
工业实用性
实施本发明的技术方案, 具有以下有益效果: 本发明提供的基于 LLRP 协议的路面射频识别方法、 系统及阅读器, 通过间隔一定的时间来对标签进 行判断和操作, 能够提高阅读器的识别成功率, 阅读器的吞吐量大大提升; 同时成本低, 易于实现。

Claims

权 利 要 求 书
1、 一种基于低层读写协议(LLRP ) 的路面射频识别方法, 所述方法包 括:
阅读器清点一个标签;
判断所述标签的业务操作结果节点存在时间是否超过预定的时间 N1 ; 以 及
如果超过, 则重新建立新的业务操作结果节点, 并设置所有的业务操作 结果为失败, 如果没有超过, 则不对所述业务操作结果节点进行操作。
2、如权利要求 1所述方法,其中,所述设置所有的业务操作结果为失败, 之后, 所述方法还包括:
根据所述业务操作结果失败的结果下发业务操作命令给所述标签; 接收所述标签返回的响应所述业务操作命令的业务操作结果; 以及 根据所述标签的业务操作结果上报时间间隔进行该标签的业务操作结果 的上才艮。
3、 如权利要求 2所述方法, 其中, 所述根据所述标签的业务操作结果上 报时间间隔进行该标签的业务操作结果的上报的步骤包括:
比较所述标签的业务操作结果上报的当前时间 T1 与前一次所述标签的 业务操作结果的上报时间 T2;
如果 T2减去 T1大于预置的上报过滤时间 N2,则上报的该标签的业务操 作结果, 并更新所述标签的最新上报时间, 如果 T2减去 T1小于预置的上报 过滤时间 N2, 则不上报该标签的业务操作结果, 并更新所述标签的上报时间 为系统时间。
4、 如权利要求 3所述方法, 其中, 所述时间 N2为所述时间 N1 的 1.5 至 2倍。
5、 一种阅读器, 包括:
清点单元, 其设置为: 清点一个标签;
节点时间判断单元, 其设置为: 判断所述标签的业务操作结果节点存在 时间是否超过预定的时间 N1; 以及
节点操作单元, 其设置为: 如果节点时间判断单元的判断结果为是, 则 重新建立新的业务操作结果节点, 并设置所有的业务操作结果为失败, 如果 节点时间判断单元的判断结果为否,则不对所述业务操作结果节点进行操作。
6、 如权利要求 5所述阅读器, 其中, 所述阅读器还包括:
命令下发单元, 设置为: 根据所述节点操作单元的失败结果下发业务操 作命令给所述标签; 操作结果接收单元, 设置为: 接收所述标签返回的响应所述业务操作命 令的业务操作结果; 以及
业务操作结果上报单元, 设置为: 根据所述标签的业务操作结果上报时 间间隔进行该标签的业务操作结果的上报。
7、 如权利要求 6所述阅读器, 其中, 所述业务操作结果上报单元包括时 间比较单元和业务操作单元, 其中:
所述时间比较单元设置为: 比较所述标签的业务操作结果上报的当前时 间 T1与前一次所述标签的业务操作结果的上报时间 T2, 判断 T2减去 T1是 否大于预置的上报过滤时间 N2;
所述业务操作单元设置为: 根据所述时间比较单元的判断结果, 如果是, 则上报该标签上报的业务操作结果, 并更新所述标签的最新上报时间, 如果 否, 则不上报该标签的业务操作结果, 并更新所述标签的上报时间为系统时 间。
8、 如权利要求 7所述阅读器, 其中, 所述时间 N2为所述时间 N1的 1.5 至 2倍。
9、 一种基于低层读写协议(LLRP ) 的路面射频识别系统, 包括: 阅读 器和标签, 其中,
所述阅读器设置为: 清点标签, 根据所述标签对所述清点的响应, 判断 所述标签的业务操作结果节点存在时间是否超过预定的时间 N1 ; 如果超过, 则重新建立新的业务操作结果节点, 并设置所有的业务操作结果为失败, 如 果没有超过, 则不对所述业务操作结果节点进行操作; 所述标签设置为: 对所述阅读器的清点进行响应。
10、 如权利要求 9所述系统, 其中,
所述阅读器还设置为: 根据所述业务操作结果失败的结果下发业务操作 命令给所述标签; 接收所述标签返回的响应所述业务操作命令的业务操作结 果;比较所述标签的业务操作结果上报的当前时间 T1与前一次所述标签的业 务操作结果的上报时间 T2; 如果 T2减去 T1大于预置的上报过滤时间 N2, 则上 所述标签的业务操作结果, 并更新所述标签的最新上 时间,如果 T2 减去 T1小于预置的上报过滤时间 N2, 则不上报所述标签的业务操作结果, 并更新所述标签的上 >¾时间为系统时间;
所述标签还设置为: 向所述阅读器返回响应所述业务操作命令的业务操 作结果。
PCT/CN2010/080335 2010-07-29 2010-12-27 基于低层读写协议(llrp)的路面射频识别方法、系统及阅读器 WO2012013005A1 (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11192055B2 (en) 2017-08-30 2021-12-07 Cummins Filtration Ip, Inc. Interlock for genuine filter recognition

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101923629B (zh) * 2010-07-29 2014-12-10 中兴通讯股份有限公司 基于llrp协议的路面射频识别方法、系统及阅读器
CN103488469A (zh) * 2012-06-13 2014-01-01 中兴通讯股份有限公司 一种阅读器及其业务操作的实现方法和装置
CN103679081B (zh) * 2012-09-21 2017-03-29 天津中兴智联科技有限公司 射频识别方法及系统、阅读器、业务应用装置
CN106203217B (zh) * 2016-07-11 2018-11-30 天津中兴智联科技有限公司 一种解决密集阅读器部署的方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004266550A (ja) * 2003-02-28 2004-09-24 Toshiba Tec Corp 無線タグ質問器の送信方法及び無線タグ質問器システム
EP1811426A2 (en) * 2006-01-18 2007-07-25 Hitachi, Ltd. Wireless signal receiver
CN101470791A (zh) * 2007-12-29 2009-07-01 华为技术有限公司 射频信号的识别、应答方法及系统,标签和阅读器
CN101923629A (zh) * 2010-07-29 2010-12-22 中兴通讯股份有限公司 基于llrp协议的路面射频识别方法、系统及阅读器

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7671743B2 (en) * 2006-11-03 2010-03-02 International Business Machines Corporation Detecting a departure of an RFID tag from an area
CN101751538B (zh) * 2008-12-01 2012-03-28 中兴通讯股份有限公司 射频识别rfid标签处理方法和装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004266550A (ja) * 2003-02-28 2004-09-24 Toshiba Tec Corp 無線タグ質問器の送信方法及び無線タグ質問器システム
EP1811426A2 (en) * 2006-01-18 2007-07-25 Hitachi, Ltd. Wireless signal receiver
CN101470791A (zh) * 2007-12-29 2009-07-01 华为技术有限公司 射频信号的识别、应答方法及系统,标签和阅读器
CN101923629A (zh) * 2010-07-29 2010-12-22 中兴通讯股份有限公司 基于llrp协议的路面射频识别方法、系统及阅读器

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11192055B2 (en) 2017-08-30 2021-12-07 Cummins Filtration Ip, Inc. Interlock for genuine filter recognition
US11633684B2 (en) 2017-08-30 2023-04-25 Cummins Filtration Ip, Inc. Interlock for genuine filter recognition

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