WO2011023004A1

WO2011023004A1 - Implement method and system for electronic toll collection

Info

Publication number: WO2011023004A1
Application number: PCT/CN2010/073027
Authority: WO
Inventors: 张永智; 王立
Original assignee: 中兴通讯股份有限公司
Priority date: 2009-08-25
Filing date: 2010-05-20
Publication date: 2011-03-03
Also published as: CN101996424B; CN101996424A

Abstract

An implement method for electronic toll collection includes: a trigger ground sensor is set in the antenna communication cover range of a lane reader-writer; the lane reader-writer is triggered after vehicles driving into the antenna communication area are detected; an on board unit detects the power of the signals sent by the lane reader-writer, and returns response signals with added power detection value to the lane reader-writer; the ID corresponding to the determined on board unit is sent to the background computer stack by the lane reader-writer, and trading is charged.

Description

一种电子不停车收费实现方法和*** 技术领域 Method and system for realizing electronic non-stop charging

本发明涉及无线通信领域，特别是射频识别领域，具体涉及一种电子不停车收费实现方法和***。背景技术 The present invention relates to the field of wireless communications, and more particularly to the field of radio frequency identification, and in particular to a method and system for implementing electronic non-stop charging. Background technique

目前在射频识别（ RFID, Radio Frequency Identification )技术的众多实际应用中，智能交通的应用是最广泛的，例如电子收费***（ETC, Electronic Toll Collection System ), 即不停车收费***。 ETC不停车收费技术出现在 90 年代初期，先后在北美、欧洲、日本、澳洲、新加坡等地广泛应用，同时我国也开展了相关项目的研究，在广东、江苏等一些省市地区开展了示范工程的建设，并提出了相关的国内标准以加快电子不停车收费技术的发展。 At present, in many practical applications of RFID (Radio Frequency Identification) technology, intelligent transportation is the most widely used, such as Electronic Toll Collection System (ETC), which is a non-stop charging system. ETC non-stop charging technology appeared in the early 1990s and has been widely used in North America, Europe, Japan, Australia, Singapore, etc. At the same time, China has also carried out research on related projects, and carried out demonstration projects in some provinces and cities such as Guangdong and Jiangsu. The construction, and proposed relevant domestic standards to accelerate the development of electronic non-stop charging technology.

ETC***利用 RFID技术完成车辆与收费站之间的无线数据通信，具体而言，通过设置在车辆上的车载单元（OBU, On Board Unit ) (即车载电子标签）与路边单元（RSU, Road Side Unit )来实现。其中，所述 RSU上设有天线和车道读写器。这样，当车辆高速通过 RSU的时候， OBU和 RSU通过微波通信，进行车辆自动识别和有关收费数据的交换，通过计算机网络进行收费数据的处理，从而实现不停车自动收费。 The ETC system uses RFID technology to complete wireless data communication between the vehicle and the toll booth, specifically, through the onboard unit (OBU, On Board Unit) and the roadside unit (RSU, Road) Side Unit) to achieve. Wherein, the RSU is provided with an antenna and a lane reader/writer. Thus, when the vehicle passes through the RSU at a high speed, the OBU and the RSU communicate with each other through microwave communication to perform automatic vehicle identification and related charging data, and process the charging data through the computer network, thereby realizing automatic charging without parking.

在目前的 ETC***中，路边单元上设置的天线位于车道上方，为了保证车辆有较高的通行速度和收费的稳定可靠，天线在车道上覆盖的通信区域一般设置 8米以上。但是，由于通信区域范围的扩大，经常出现多车（至少是 2车）同时处于同一天线通信区域内的现象，此时，车道读写器无法判断车辆的先后顺序，尤其是当前面的车辆不能正常交易而后车可进行交易时，就会出现前车被放行而后车被拉截的情况，称之为跟车干扰。如图 1所示，在车道读写器的有效范围内，有两个车载电子标签同时被清点到，这样车道读写器无法判断车辆的先后顺序，造成跟车干扰，影响正常收费交易的进行。 In the current ETC system, the antenna set on the roadside unit is located above the lane. In order to ensure that the vehicle has a high traffic speed and the charging is stable and reliable, the communication area covered by the antenna in the lane is generally set to be more than 8 meters. However, due to the expansion of the communication area, it is often the case that multiple vehicles (at least 2 cars) are in the same antenna communication area at the same time. At this time, the lane reader cannot judge the order of the vehicles, especially the current vehicle cannot. When a normal transaction occurs and the car can be traded, there will be a situation in which the preceding vehicle is released and the vehicle is pulled. This is called following the car. As shown in Figure 1, within the effective range of the lane reader, there are two in-vehicle electronic tags that are simultaneously counted, so that the lane reader cannot judge the order of the vehicles, causing interference with the car, affecting the normal charging transaction. .

而且，如果跟车干扰发生在收费站入口，当前面车辆到达出口的时候，会因为没有入口信息而按照全程进行收费（具体处罚规则由高速公路当地相关部门确定），从而招致车主的投诉。为了确认收费是否存在问题，高速公路管理人员必须从大量的收费录像中确认客户投诉是否属实，这样导致实际操作中费力且费时。并且，由于目前高速公路联网使用，如果上述被罚车辆属于跨路段行驶，处理起来还要涉及与其他高速公路营运单位的协调，异常繁瑣。 Moreover, if the following vehicle interference occurs at the entrance of the toll booth, when the preceding vehicle arrives at the exit, it will charge according to the whole process because there is no entry information (the specific penalty rules are determined by the relevant local departments of the expressway), thus incurring the complaint of the owner. In order to confirm whether there is a problem with the charge, the highway manager must confirm whether the customer complaint is true from a large number of charge recordings, which results in laborious and time-consuming operations. Moreover, due to the current use of expressway networking, if the above-mentioned penalized vehicles belong to cross-street driving, it is also complicated to handle the coordination with other expressway operating units.

此外，如果跟车干扰发生在收费站出口，被放行的车辆在有意或无意的情况下都会造成事实上的逃费。而被拉截的正常交易车辆不但无法正常通行，而且还要被按照全程行驶进行收费，即使多收的费用能够在情况核实后退还给车主，但是实际的核对操作和跟车干扰发生在收费站入口的情况处理过程相同，费力且费时。如此可见，目前的 ETC***难以保证车辆正常通行以及收费的可靠性。 In addition, if the following interference occurs at the toll gate, the released vehicle will cause a de facto evasion if it is intentional or unintentional. The normal trading vehicles that are being intercepted are not only unable to pass normally, but also charged according to the whole journey. Even if the overcharged fees can be returned to the owner after the situation is verified, the actual check operation and the following interference occur at the toll booth. The situation of the entrance is the same, laborious and time consuming. As can be seen, the current ETC system is difficult to guarantee the normal traffic of vehicles and the reliability of charging.

综上所述，随着高速公路联网范围越来越大，单次车辆通行费日益攀高，跟车干扰给高速公路管理部门带来一定的经济损失，同时由于还会存在车主对损失的确认和分担等问题。因此跟车干扰不论是对高速公路管理部门还是高速公路用户都带来不利影响。 In summary, as the number of highways is getting larger and larger, the tolls for single vehicles are rising, and the interference with the vehicles will bring certain economic losses to the highway management department. At the same time, there will be confirmations of losses by the owners. Sharing issues. Therefore, the interference with the car has adversely affected both the highway management department and the highway users.

另外，在实际运行中，现有的 ETC***，由于 OBU芯片的差异性（不同 OBU芯片厂商生产的芯片性能存在差异）以及本身物理性能问题（例如，由于 OBU本身是需要电池供电，电池性能存在差异）一致性不足，也会导致跟车计费出现失误。发明内容 In addition, in actual operation, existing ETC systems, due to the difference in OBU chips (different performance of chips produced by different OBU chip manufacturers) and their physical performance problems (for example, because OBU itself requires battery power, battery performance exists) Differences) Insufficient consistency can also lead to errors in billing with the car. Summary of the invention

有鉴于此，本发明的目的在于提出一种电子不停车收费实现方法和系统，用以解决现有技术中存在的 ETC***中的跟车干扰问题，并且能够提高跟车计费的准确率。 In view of the above, an object of the present invention is to provide an electronic non-stop charging implementation method and system for solving the problem of following the vehicle interference in the ETC system existing in the prior art, and improving the accuracy of the following charging.

为达到上述目的，本发明公开一种电子不停车收费实现方法，包括：在车道读写器的天线通信覆盖范围内设置有触发地感，所述触发地感检测到车辆驶入天线通信区域时，触发车道读写器；接收到所述车道读写器发送的清点指令后，车载电子标签发送应答信号给车道读写器；所述车道读写器根据所述应答信号确定车载电子标签对应的身份标识号码 ID , 并将该车载电子标签对应的 ID送到后台计算机的堆栈中存储，进行收费交易。 In order to achieve the above object, the present invention discloses a method for implementing an electronic non-stop charging, comprising: providing a triggering ground feeling in an antenna communication coverage area of a lane reader/writer, wherein the triggering ground feeling detects that the vehicle enters the antenna communication area a trigger lane reader/writer; after receiving the inventory command sent by the lane reader/writer, the in-vehicle electronic tag sends a response signal to the lane reader/writer; the lane reader/writer determines the corresponding vehicle-mounted electronic tag according to the response signal The identification number ID, and the ID corresponding to the in-vehicle electronic tag is sent to the stack of the background computer for storage.

其中，所述车载电子标签发送应答信号给车道读写器进一步包括：所述车载电子标签解析接收到车道读写器发送清点指令的信号，得到基带信号；所述车载电子标签对发送清点指令的信号进行功率检测，并将功率检测值写入应答信号返回给车道读写器。 The in-vehicle electronic tag sends a response signal to the lane reader/writer further includes: the in-vehicle electronic tag parses the signal received by the lane reader/writer to send an inventory command, to obtain a baseband signal; and the in-vehicle electronic tag sends an inventory instruction The signal is power tested and the power detection value is written back to the lane reader.

上述方法中，所述根据所述应答信号确定车载电子标签对应的 ID进一步包括：所述车道读写器根据应答信号确定车载电子标签的个数，若只有 1 个车载电子标签，则将该车载电子标签对应的 ID送到后台计算机的堆栈中存储；若有两个以上的车载电子标签，则解析所述应答信号，得到所述功率检测值最大的车载电子标签对应的 ID, 并将所述 ID送到后台计算机的堆栈中存储。 In the above method, the determining, by the response signal, the ID corresponding to the in-vehicle electronic tag further comprises: the lane reader/writer determining the number of the in-vehicle electronic tags according to the response signal, and if there is only one in-vehicle electronic tag, the in-vehicle The ID corresponding to the electronic tag is sent to the stack of the background computer for storage; if there are more than two in-vehicle electronic tags, the response signal is parsed to obtain an ID corresponding to the in-vehicle electronic tag having the largest power detection value, and the The ID is sent to the stack of the backend computer for storage.

上述方法还包括：在车道读写器的天线通信覆盖范围内设置有抓拍地感，所述抓拍地感检测到所述车载电子标签离开天线通信区域，触发车道读写器对堆栈内完成收费交易的车载电子标签进行清点，若没有清点到，则放行所述车辆，并通知后台计算机对应删除存储在堆栈中的车载电子标签的 ID; 否则，若清点到所述车载电子标签，则对离开通信区域的车辆进行补充收费。 The method further includes: providing a sense of capture in the antenna communication coverage of the lane reader/writer, the sense of capture detecting that the in-vehicle electronic tag leaves the antenna communication area, and triggering the lane reader to complete the charging transaction in the stack The in-vehicle electronic tag is counted, if not, the vehicle is released, and the background computer is notified to delete the ID of the in-vehicle electronic tag stored in the stack; otherwise, if the in-vehicle electronic tag is counted, the communication is left. Regional vehicle Line charges.

其中，所述车载电子标签在进行收费交易时，若遇到清点指令，则将当前收费交易流程暂停，并保存所有相关数据，然后切换到应答清点指令进程；并在应答清点指令后，切换到原先暂停的收费交易进程中，恢复所有收费交易流程中的数据，继续进行收费交易。 Wherein, when the in-vehicle electronic tag encounters an inventory instruction, if the inventory instruction is encountered, the current charging transaction flow is suspended, and all relevant data is saved, and then the process is switched to the answering inventory instruction process; and after answering the inventory instruction, switching to In the originally suspended charging transaction process, the data in all the charging transaction processes are resumed, and the charging transaction is continued.

上述方法还包括：车道读写器判断天线通信区域内是否还存在车载电子标签，若是，则发送的清点指令给所述车载电子标签，触发收费交易，否则，将车道读写器休眠。 The method further includes: the lane reader/writer determining whether the vehicle electronic tag is still present in the antenna communication area, and if so, transmitting an inventory command to the in-vehicle electronic tag to trigger a charging transaction; otherwise, the lane reader/writer is hibernated.

相应地，本发明还提供一种电子不停车收费***，该***包括：路边单元，设置有车道读写器和天线其中，所述车道读写器用于发送清点指令给车载电子标签，并根据车载电子标签发送的应答信号确定该车载电子标签对应的 ID, 并将该 ID送到后台计算机存储，之后与车载电子标签进行收费交易通信；设置在车辆上的车载电子标签，用于接收到所述清点指令后，发送应答信号给车道读写器；触发地感，设置在车道读写器的天线通信覆盖范围内，所述触发地感用于检测到车辆驶入天线通信区域时，触发车道读写器；后台计算机，用于存储车道读写器发送的 ID, 进行收费交易。 Correspondingly, the present invention further provides an electronic non-stop charging system, the system comprising: a roadside unit provided with a lane reader/writer and an antenna, wherein the lane reader/writer is configured to send an inventory instruction to the vehicle electronic tag, and according to The response signal sent by the in-vehicle electronic tag determines the ID corresponding to the in-vehicle electronic tag, and sends the ID to the background computer for storage, and then performs charging transaction communication with the in-vehicle electronic tag; the in-vehicle electronic tag disposed on the vehicle is used to receive the address After the inventory command is executed, the response signal is sent to the lane reader/writer; the triggering sense is set in the antenna communication coverage of the lane reader/writer, and the triggering sense is used to detect the lane when the vehicle enters the antenna communication area, triggering the lane Reader; background computer, used to store the ID sent by the lane reader, for charging transactions.

其中，所述车载电子标签进一步用于：解析接收到车道读写器发送清点指令的信号，得到基带信号；所述车载电子标签对发送清点指令的信号进行功率检测，并将功率检测值写入应答信号返回给车道读写器。 The in-vehicle electronic tag is further configured to: parse a signal received by the lane reader/writer to send an inventory instruction to obtain a baseband signal; and the in-vehicle electronic tag performs power detection on the signal that sends the inventory instruction, and writes the power detection value The response signal is returned to the lane reader.

上述***中，所述车载电子标签在进行收费交易时，若遇到清点指令，则所述车载电子标签还用于将当前收费交易流程暂停，并保存所有相关数据，然后切换到应答清点指令进程；并在应答清点指令后，切换到原先暂停的收费交易进程中，恢复所有收费交易流程中的数据，继续进行收费交易。其中，在车道读写器的天线通信覆盖范围内设置有抓拍地感，所述抓拍地感用于检测到所述车载电子标签离开天线通信区域，触发车道读写器对堆栈内完成交易的车载电子标签进行清点，若没有清点到，则放行所述车辆，并通知后台计算机对应删除存储在堆栈中的车载电子标签的 ID; 否则，若清点到所述车载电子标签，则对离开通信区域的车辆进行补充收费。 In the above system, when the in-vehicle electronic tag encounters an inventory instruction during the charging transaction, the in-vehicle electronic tag is further used to pause the current charging transaction process, save all relevant data, and then switch to the response counting instruction process. And after answering the inventory command, switch to the previously suspended charging transaction process, restore the data in all the charging transaction process, and continue the charging transaction. Wherein, a sense of capture is set in the antenna communication coverage of the lane reader/writer, and the sense of capture is used to detect that the in-vehicle electronic tag leaves the antenna communication area, and triggers the lane reader to complete the transaction in the stack. The electronic tag performs inventory, if no inventory is reached, the vehicle is released, and the background computer is notified to delete the ID of the in-vehicle electronic tag stored in the stack; otherwise, if the in-vehicle electronic tag is inspected, the communication area is left. The vehicle is charged separately.

与现有技术相比，本发明根据信号在空中传输过程中的衰减情况来判断车载电子标签的距离，以保证车道读写器能够确定车载电子标签的前后对应关系。尤其是，在天线通信区域内同时存在多车时，利用前后车辆上设有的车载电子标签与车道读写器进行通信时，通过对触发地感、抓拍地感进行位置定位，并通过信号衰减情况来确定车道读写器与车载电子标签的对应关系，实现可靠的收费交易，从而解决了电子不停车收费中的跟车干扰问题，而且不会依赖 OBU芯片性能，提高了跟车计费的准确率。 Compared with the prior art, the present invention judges the distance of the in-vehicle electronic tag based on the attenuation of the signal during the air transmission to ensure that the lane reader/writer can determine the front-back correspondence of the in-vehicle electronic tag. In particular, when there is a multi-vehicle in the antenna communication area, when the vehicle-mounted electronic tag provided on the front and rear vehicles communicates with the lane reader/writer, the position of the triggering sense and the sense of the ground is positioned, and the signal is attenuated. The situation is to determine the correspondence between the lane reader and the in-vehicle electronic tag, to achieve reliable charging transactions, thereby solving the problem of following the car interference in the electronic non-stop charging, and does not rely on the performance of the OBU chip, and improves the billing of the following vehicle. Accuracy.

另外，由于下行链路的发射源都是车道读写器，因此本发明是在车载电子标签侧进行信号的功率检测，从而保证对信号的衰减只有信号传输距离的影响，不会引入其他因素。并且，本发明采用对单一的车载电子标签进行清点的方式，由于清点过程 4艮快，所以不会影响收费交易的效率。附图说明 In addition, since the downlink transmission sources are all lane readers, the present invention performs signal power detection on the in-vehicle electronic tag side, thereby ensuring that the attenuation of the signal is only the influence of the signal transmission distance, and no other factors are introduced. Moreover, the present invention adopts a method of counting a single in-vehicle electronic tag, and since the counting process is fast, it does not affect the efficiency of the charging transaction. DRAWINGS

附图用来提供对本发明的进一步理解，并且构成说明书的一部分，与本发明的实施例一起用于解释本发明，并不构成对本发明的限制。在附图中： The drawings are intended to provide a further understanding of the invention, and are intended to be a In the drawing:

图 1是跟车干扰产生示意图； Figure 1 is a schematic diagram of the following interference;

图 2是本发明电子不停车收费***的结构示意图； 2 is a schematic structural view of an electronic non-stop charging system of the present invention;

图 3是本发明实施例中所述车载电子标签与所述车道读写器之间距离与传输信号衰减仿真示意图；图 4是本发明电子不停车收费实现方法实施例的流程示意图；图 5是本发明实施例中车辆离开天线通信区域时的示意图。具体实施方式本发明的主要技术思想是，在天线通信区域内存在多车时，利用前后车辆因传输路径不同而导致不同的信号衰减，并根据信号衰减情况，确定车道读写器与车载电子标签的对应关系，以实现可靠的收费交易，从而解决跟车干扰问题并提高跟车计费的准确率。 3 is a schematic diagram of simulation of distance and transmission signal attenuation between the in-vehicle electronic tag and the lane reader/writer according to an embodiment of the present invention; 4 is a schematic flow chart of an embodiment of an electronic non-stop charging implementation method according to the present invention; and FIG. 5 is a schematic diagram of a vehicle leaving an antenna communication area in an embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The main technical idea of the present invention is that when there are multiple vehicles in the antenna communication area, different signals are attenuated due to different transmission paths of the front and rear vehicles, and the lane reader and the vehicle electronic tag are determined according to the signal attenuation condition. The corresponding relationship, in order to achieve reliable charging transactions, thereby solving the problem of following the car interference and improving the accuracy of the following car billing.

下面结合附图对本发明的具体实施方式进行详细描述： The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings:

如图 2所示，本发明实施例所采用的电子不停车收费***主要包括：设置在车辆上的车载电子标签、设置在路边单元上的车道读写器和天线、触发地感、抓拍地感、后台计算机。 As shown in FIG. 2, the electronic non-stop charging system used in the embodiment of the present invention mainly includes: an in-vehicle electronic tag disposed on a vehicle, a lane reader/writer and an antenna disposed on the roadside unit, a triggering sense, and a capture ground. Sense, background computer.

其中，所述天线和车道读写器设置在路边单元上，所述路边单元位于龙门架上，位于车道上方，所述触发地感和抓拍地感设置在车道读写器的天线通信覆盖范围内，如图 5所示。并且本实施例中，所述车道读写器、触发地感、抓拍地感分别与后台计算机进行连接。 The antenna and the lane reader/writer are disposed on the roadside unit, and the roadside unit is located on the gantry, and is located above the lane, and the triggering ground feeling and the sense of capturing are set in the antenna communication coverage of the lane reader/writer. Within the scope, as shown in Figure 5. In this embodiment, the lane reader/writer, the sense of triggering, and the feeling of capturing are respectively connected to the background computer.

上述***中，车道读写器用于发送清点指令给车载电子标签，并根据车载电子标签发送的应答信号确定该车载电子标签对应的身份标识号码（ID, Identification ), 如介质访问控制（MAC, Media Access Control ) 地址、车牌号码等能够唯一识别出所述车载电子标签的标识，并将该车载电子标签对应的 ID送到后台计算机存储，之后与车载电子标签进行收费交易通信；设置在车辆上的车载电子标签，用于接收到所述清点指令后，发送应答信号给车道读写器；触发地感，设置在车道读写器的天线通信覆盖范围内，所述触发地感用于检测到车辆驶入天线通信区域时，触发车道读写器；后台计算机，用于存储车道读写器发送的 ID, 进行收费交易。上述***中，所述车载电子标签进一步用于：解析接收到车道读写器发送清点指令的信号，得到基带信号，并在所述基带信号为高电平时，所述车载电子标签对发送清点指令的信号进行功率检测，并将功率检测值写入应答信号返回给车道读写器。 In the above system, the lane reader/writer is configured to send an inventory command to the in-vehicle electronic tag, and determine an identification number (ID, Identification) corresponding to the in-vehicle electronic tag according to the response signal sent by the in-vehicle electronic tag, such as media access control (MAC, Media). Access Control) address, license plate number, etc. can uniquely identify the identification of the in-vehicle electronic tag, and send the ID corresponding to the in-vehicle electronic tag to the background computer for storage, and then perform charging transaction communication with the in-vehicle electronic tag; The in-vehicle electronic tag is configured to: after receiving the counting instruction, send a response signal to the lane reader/writer; trigger the sense of ground, set in the antenna communication coverage of the lane reader/writer, and the triggering sense is used to detect the vehicle When driving into the antenna communication area, the lane reader/writer is triggered; the background computer is used to store the ID sent by the lane reader/writer, and the charging transaction is performed. In the above system, the in-vehicle electronic tag is further configured to: parse a signal received by the lane reader/writer to send an inventory instruction to obtain a baseband signal, and when the baseband signal is at a high level, the in-vehicle electronic tag pair sends an inventory instruction The signal is tested for power and the power detection value is written back to the lane reader.

其中，所述车载电子标签在进行收费交易时，若遇到清点指令，贝' J 所述车载电子标签还用于将当前收费交易流程暂停，并保存所有相关数据，然后切换到应答清点指令进程；并在应答清点指令后，切换到原先暂停的收费交易进程中，恢复所有收费交易流程中的数据，继续进行收费交易。 Wherein, when the in-vehicle electronic tag encounters an inventory instruction during the charging transaction, the in-vehicle electronic tag is used to pause the current charging transaction process, save all relevant data, and then switch to the response counting instruction process. And after answering the inventory command, switch to the previously suspended charging transaction process, restore the data in all the charging transaction process, and continue the charging transaction.

上述***中，在车道读写器的天线通信覆盖范围内设置有抓拍地感，所述抓拍地感用于检测到所述车载电子标签离开天线通信区域，触发车道读写器对堆栈内完成交易的车载电子标签进行清点，若没有清点到，则放行所述车辆，并通知后台计算机对应删除存储在堆栈中的车载电子标签的 ID; 否则，若清点到所述车载电子标签，则对离开通信区域的车辆进行补充收费。 In the above system, a sense of capture is set in the antenna communication coverage of the lane reader/writer, and the sense of capture is used to detect that the in-vehicle electronic tag leaves the antenna communication area, and triggers the lane reader to complete the transaction in the stack. The in-vehicle electronic tag is counted, if not, the vehicle is released, and the background computer is notified to delete the ID of the in-vehicle electronic tag stored in the stack; otherwise, if the in-vehicle electronic tag is counted, the communication is left. Regional vehicles are charged for supplements.

如图 3所示，示出了本发明实施例所述车载电子标签与所述车道读写器之间的距离与传输信号衰减的仿真曲线关系，在所述 ETC***的天线通信覆盖范围内，车载电子标签与车道读写器直接进行信号传输时，由于受到车辆相对于车道读写器的距离和角度的影响，导致信号衰减不同。于是，本发明的实施例选取车辆相对于车道读写器的距离与信号功率成正比的一段作为有效通信区域，并将触发地感和抓拍地感分别设置在有效通信区域的两端。这样，能够保证当车辆通过两个地感之间的路径时，信号衰减与距离成正比。其中，所述距离是指车辆相对于车道读写器的路径长度。 As shown in FIG. 3, the relationship between the distance between the in-vehicle electronic tag and the lane reader/writer and the attenuation of the transmission signal is shown in the antenna communication coverage of the ETC system. When the in-vehicle electronic tag and the lane reader directly transmit signals, the signal attenuation is different due to the influence of the distance and angle of the vehicle relative to the lane reader. Thus, an embodiment of the present invention selects a section in which the distance of the vehicle relative to the lane reader is proportional to the signal power as an effective communication area, and sets the trigger sense and the sense of capture to each end of the effective communication area. In this way, it is ensured that when the vehicle passes the path between the two senses, the signal attenuation is proportional to the distance. Wherein, the distance refers to the path length of the vehicle relative to the lane reader/writer.

从图 3中可以看出，当车载电子标签（即车辆）在距离车道读写器 2m以外的区域，信号的衰减与车辆相对于车道读写器的距离成正比，因此需要确定车道读写器的有效工作范围。这是因为，在这个有效工作范围内，两个车载电子标签的距离就能够明确的用信号衰减情况表示。同时，考虑到车辆长度一般都在 3m以上，从图 2的仿真曲线中可以看出，相差 3m的两个车载电子标签的衰减一般都能保证在 3db以上，这样就保证在同一天线通信区域内，能够明确区分前后两个不同的车载电子标签的信号衰减情况，从而确定车辆的位置，进而确保收费的可靠性。 As can be seen from Figure 3, when the in-vehicle electronic tag (ie, the vehicle) is in a region other than 2 m from the lane reader, the attenuation of the signal is proportional to the distance of the vehicle relative to the lane reader, so it is necessary Determine the effective working range of the lane reader. This is because, within this effective working range, the distance between the two in-vehicle electronic tags can be clearly expressed by the signal attenuation. At the same time, considering that the length of the vehicle is generally more than 3m, it can be seen from the simulation curve of Fig. 2 that the attenuation of the two in-vehicle electronic tags with a difference of 3m can generally be guaranteed to be more than 3db, so that it is guaranteed within the same antenna communication area. The signal attenuation of two different in-vehicle electronic tags can be clearly distinguished to determine the position of the vehicle, thereby ensuring the reliability of the charging.

如图 4示是本发明所述的电子不停车收费实现方法实施例，该方法实施例主要包括如下步骤： FIG. 4 is a schematic diagram of an embodiment of an electronic non-stop charging implementation method according to the present invention. The method embodiment mainly includes the following steps:

步骤 401 , 触发地感检测到有车辆进入天线通信区域时，触发车道读写器； Step 401: Trigger the ground sense to detect that a vehicle enters the antenna communication area, triggering the lane reader/writer;

其中，在车道读写器的天线通信覆盖范围内设置有触发地感和抓拍地感，并且在确定触发地感和抓拍地感之间的距离之后，当天线通信区域没有车辆进入时，车道读写器通常处于休眠状态；并且，当触发地感检测到有车辆进入天线通信区域时，触发车道读写器。 Wherein, the sense of triggering and the feeling of capturing are set in the antenna communication coverage of the lane reader/writer, and after determining the distance between the triggering sense and the feeling of capturing, when the antenna communication area has no vehicle entering, the lane reading The writer is typically in a sleep state; and, when the trigger sense detects that a vehicle has entered the antenna communication area, the lane reader/writer is triggered.

步骤 402 , 车道读写器以广播方式向车载电子标签发送清点指令；其中，车道读写器通过以广播方式发送的信号，向车载电子标签发送清点指令。 Step 402: The lane reader/writer sends an inventory command to the in-vehicle electronic tag in a broadcast manner. The lane reader/writer transmits an inventory command to the in-vehicle electronic tag through a signal transmitted by the broadcast.

步骤 403 , 车载电子标签接收到所述清点指令后，进行功率检测，并将添加有接收信号的功率检测值的应答信号发送给车道读写器； Step 403: After receiving the inventory command, the in-vehicle electronic tag performs power detection, and sends a response signal to which the power detection value of the received signal is added to the lane reader/writer;

本步骤中，所述车载电子标签在接收到车道读写器的发送信号后，在向所述车道读写器发送应答信号前，进行功率检测。更进一步地讲，所述车载电子标签通过设置在其自身上的解调芯片，解析接收到的车道读写器发送清点指令的信号，得到基带信号；当所述基带信号为高电平时，所述车载电子标签对所接收到的空口信号进行接收的信号强度指示（ RSSI , Received Signal Strength Indication )功率检测，即对接收信号的功率进行量化，得到每个车载电子标签对应的接收信号的功率检测值（即功率检测结果）。而且，该车载电子标签将接收信号的功率检测值写入应答信号的指定字段中，并随机选择一个延时通过发送应答信号给车道读写器，从而将其接收信号的功率检测值发送给车道读写器。本实施例中，所述基带信号为高电平时进行 RSSI功率检测，但本实施例对此并不进行限定，即：根据实际操作过程中的具体情况，可将所述基带信号设为其他合适的值，如低电平或平均值时进行 RSSI功率检测。 In this step, after receiving the transmission signal of the lane reader/writer, the in-vehicle electronic tag performs power detection before transmitting a response signal to the lane reader/writer. Further, the in-vehicle electronic tag parses the received signal from the lane reader/writer to send an inventory command through a demodulation chip disposed on itself to obtain a baseband signal; when the baseband signal is at a high level, The RSSI (Received Signal Strength Indication) power detection of the received air interface signal, that is, the power of the received signal The power detection value (ie, the power detection result) of the received signal corresponding to each in-vehicle electronic tag is obtained. Moreover, the in-vehicle electronic tag writes the power detection value of the received signal into a specified field of the response signal, and randomly selects a delay by transmitting a response signal to the lane reader/writer, thereby transmitting the power detection value of the received signal to the lane. Reader. In this embodiment, the RSSI power detection is performed when the baseband signal is at a high level, but the embodiment does not limit this, that is, according to the specific situation in the actual operation process, the baseband signal can be set to other suitable. The RSSI power detection is performed when the value is low or average.

需要说明的是，所述接收信号的功率检测值是一个变化的量，本实施例通过比较接收信号的功率检测值，得到不同车载电子标签对应车辆的位置前后信息，以实现对收费交易情况的准确控制。其中，所述车载电子标签对接收信号进行空口 RSSI功率检测，以获取相对统一的接收信号的功率检测值。 It should be noted that, the power detection value of the received signal is a variable amount. In this embodiment, by comparing the power detection values of the received signals, information about the position of the vehicle corresponding to different in-vehicle electronic tags is obtained, so as to implement the charging transaction situation. Accurate control. The in-vehicle electronic tag performs air interface RSSI power detection on the received signal to obtain a relatively uniform power detection value of the received signal.

需要强调的是，当车载电子标签在进行交易过程中收到清点指令，则也能够正常响应，同时不会影响当前的收费交易，并且在响应清点指令后能够继续进行收费交易。 It should be emphasized that when the in-vehicle electronic tag receives the inventory instruction during the transaction, it can also respond normally, without affecting the current charging transaction, and can continue to conduct the charging transaction after responding to the inventory instruction.

步骤 404, 车道读写器接收到车载电子标签的应答信号后，判断是否只收到一个应答信号，若只收到一个应答信号，则执行步骤 407; 否则，若收到两个以上的应答信号，则执行步骤 405; Step 404, after receiving the response signal of the in-vehicle electronic tag, the lane reader/writer determines whether only one response signal is received. If only one response signal is received, step 407 is performed; otherwise, if more than two response signals are received , step 405 is performed;

本步骤中，所述只收到一个应答信号是指只清点到一个车载电子标签或者说只有一辆车在当前天线通信区域内；所述收到两个以上应答信号是指清点到两个以上车载电子标签。也就是说，当车道读写器向车载电子标签通过发送信号传送清点指令后，收到一个车载电子标签通过发送信号传送应答信号，则认为车道读写器清点到一个车载电子标签；相应地，收到多个应答信号，则认为车道读写器对应清点到多个车载电子标签，即在当前天线通信区域内同时存在多个车辆。步骤 405, 车道读写器解析接收到的多个应答信号，分别得到当前天线通信区域内每个车载电子标签接收信号的功率检测值； In this step, the receiving only one response signal means that only one in-vehicle electronic tag or only one car is in the current antenna communication area; the receiving two or more response signals means counting to more than two Car electronic label. That is to say, when the lane reader/writer transmits an inventory command to the in-vehicle electronic tag by transmitting a signal, and receives an in-vehicle electronic tag transmitting a response signal by transmitting a signal, the lane reader/writer is considered to be invented to an in-vehicle electronic tag; accordingly, When a plurality of response signals are received, it is considered that the lane reader/writer corresponds to the plurality of in-vehicle electronic tags, that is, a plurality of vehicles exist simultaneously in the current antenna communication area. Step 405: The lane reader/writer parses the received plurality of response signals, and respectively obtains power detection values of the received signals of each in-vehicle electronic tag in the current antenna communication area;

其中，所述接收到的多个应答信号分别对应清点到的多个车载电子标签，车道读写器解析接收到的应答信号，得到当前天线通信区域内每个车载电子标签接收信号的功率检测值。 The received plurality of response signals respectively correspond to the plurality of in-vehicle electronic tags that are counted, and the lane reader/writer analyzes the received response signal to obtain a power detection value of each of the in-vehicle electronic tag receiving signals in the current antenna communication area. .

步骤 406, 对多个所述功率检测值进行比较，选择功率检测值最大的车载电子标签进行步骤 407对应的操作； Step 406: Compare a plurality of the power detection values, and select an on-board electronic tag with the largest power detection value to perform the operation corresponding to step 407;

本步骤对多个所述功率检测值进行比较，确认接收信号的功率检测值最大的车载电子标签，并选择该功率检测值最大的车载电子标签进行步骤 406对应的操作，如将该功率检测值最大的车载电子标签的 ID如 MAC地址，传送到后台计算机的堆栈中存储。 In this step, the plurality of the power detection values are compared, the in-vehicle electronic tag having the largest power detection value of the received signal is confirmed, and the in-vehicle electronic tag having the largest power detection value is selected to perform the operation corresponding to step 406, such as the power detection value. The largest in-vehicle electronic tag ID, such as the MAC address, is transferred to the backend computer's stack for storage.

步骤 407, 将车载电子标签的 ID送到后台计算机的堆栈中存储，并进行收费交易； Step 407: Send the ID of the in-vehicle electronic tag to the stack of the background computer for storage, and perform a charging transaction;

其中，如果所述车载电子标签是由步骤 406发送的功率检测值最大的车载电子标签，也与步骤 404中只有一个车载电子标签的情况的处理方式相同，即：将所述车载电子标签的 ID送到后台计算机的堆栈中存储，并进行收费交易。 Wherein, if the in-vehicle electronic tag is the in-vehicle electronic tag with the highest power detection value sent by step 406, it is also handled in the same manner as the case where there is only one in-vehicle electronic tag in step 404, that is, the ID of the in-vehicle electronic tag is It is sent to the stack of the background computer for storage and for a fee transaction.

也就是说，车道读写器通过返回应答信号来确定车载电子标签的个数，若只有 1个车载电子标签，则将该车载电子标签对应的 ID等信息送到后台计算机的堆栈中存储；若两个以上车载电子标签，则解析所述应答信号，得到功率检测值最大的车载电子标签对应的 ID , 并将所述 ID等信息送到后台计算机的堆栈中存储。 In other words, the lane reader/writer determines the number of the in-vehicle electronic tags by returning the response signal. If there is only one in-vehicle electronic tag, the information such as the ID corresponding to the in-vehicle electronic tag is sent to the stack of the background computer for storage; Two or more in-vehicle electronic tags parse the response signal to obtain an ID corresponding to the in-vehicle electronic tag having the largest power detection value, and send the information such as the ID to the stack of the background computer for storage.

步骤 408, 抓拍地感检测到车辆驶出当前天线通信区域时，触发车道读写器对堆栈内离开车辆所携带的车载电子标签进行清点，若清点到，则将离开车辆转入补充收费；若没有清点到该车载电子标签，则放行所述车辆，并通知后台计算机对应删除存储在堆栈中的所述车载电子标签的 ID; Step 408: When the capture sense detects that the vehicle is out of the current antenna communication area, the trigger lane reader/writer performs an inventory on the in-vehicle electronic tag carried in the stack from the vehicle, and if the check is received, the departure vehicle is transferred to the supplementary charge; If the vehicle electronic tag is not counted, the vehicle is released. And notifying the background computer correspondingly deleting the ID of the in-vehicle electronic tag stored in the stack;

本步骤中，所述清点是指车道读写器对离开车辆所携带的车载电子标签进行清点，更进一步地，利用完成交易的车载电子标签的身份标识号码 In this step, the counting means that the lane reader/writer performs an inventory of the in-vehicle electronic tag carried by the leaving vehicle, and further, the identification number of the in-vehicle electronic tag that completes the transaction is used.

( ID, Identification )向所述离开车辆发送一个清点指令，如果车道读写器收到应答信号（即，清点到该离开车辆的车载电子标签），说明离开车辆与完成交易的车载电子标签的 ID不对应，则说明该离开车辆没有完成交易；如果没有应答（即，没有清点到该离开车辆的车载电子标签），说明离开车辆与完成交易的车载电子标签的 ID对应，则说明该离开车辆已完成交易。 (ID, Identification) sends an inventory command to the departing vehicle, and if the lane reader/writer receives the response signal (ie, counts the in-vehicle electronic tag that leaves the vehicle), indicating the ID of the in-vehicle electronic tag that leaves the vehicle and completes the transaction. If it does not correspond, it means that the departure vehicle has not completed the transaction; if there is no response (ie, there is no inventory to the vehicle-mounted electronic tag leaving the vehicle), indicating that the departure vehicle corresponds to the ID of the in-vehicle electronic tag that completed the transaction, then the departure vehicle has Seal the deal.

其中，如果所述离开车辆没有完成交易，则对所述离开天线通信区域的车辆进行补充收费，如通知后续监测口进行补充收费。并且，可结合本实施例所采用的电子不停车收费***中记录的收费交易记录来进一步确定离开车辆是否进行或完成收费交易。此外，所述抓拍地感也可启动拍摄功能，来拍摄离开车辆的车牌号码等信息，以备后续查证使用等。 Wherein, if the leaving vehicle does not complete the transaction, the vehicle that leaves the antenna communication area is charged, such as notifying the subsequent monitoring port to perform supplementary charging. Also, the charge transaction record recorded in the electronic non-stop charging system employed in the embodiment can be used to further determine whether the exit vehicle performs or completes the charge transaction. In addition, the capture feeling can also activate the shooting function to take information such as the license plate number leaving the vehicle for later verification and use.

需要说明的是，在清点离开车辆的车载电子标签时，可只针对该离开的车辆发送清点指令，即该清点指令中关于应答对象的参数可只设为该离开车辆；当然，也可通过广播的方式向当前天线通信区域内的所有车载电子标签发送清点指令。 It should be noted that when the vehicle electronic tag of the vehicle is removed from the vehicle, the inventory command may be sent only for the departing vehicle, that is, the parameter about the response object in the inventory instruction may be set only as the leaving vehicle; The way to send an inventory command to all in-vehicle electronic tags in the current antenna communication area.

需要强调的是，车道读写器和车载电子标签完成清点后，能够继续前面的交易流程而不会中断。这就要求车载电子标签在进行交易过程中，遇到清点指令能够正常响应，同时不会影响当前的交易，在响应清点指令后能够继续进行交易。因此，本实施例所采用的车载电子标签能够实现进程切换功能，也就是说，在进行收费交易的过程中，车载电子标签遇到清点指令后，能够将当前收费交易流程暂停，并保存所有相关数据，然后切换到另一个进程，对清点指令进行应答，应答清点指令后，切换到原先暂停的收费交易进程中，恢复所有收费交易流程中的数据，继续进行收费交易。在前述实例中，当第一个车载电子标签完成交易，返回步骤 401开始进行下一个标签的交易。 It should be emphasized that after the track reader and the on-board electronic tag complete the inventory, the previous transaction process can be continued without interruption. This requires the in-vehicle electronic tag to be able to respond normally when it encounters an inventory command during the transaction process, without affecting the current transaction, and can continue to trade after responding to the inventory instruction. Therefore, the in-vehicle electronic tag used in this embodiment can implement the process switching function, that is, in the process of charging the transaction, after the in-vehicle electronic tag encounters the inventory instruction, the current charging transaction process can be suspended, and all relevant information is saved. Data, then switch to another process, respond to the inventory command, and after responding to the inventory command, switch to the previously suspended charge transaction process, restore the data in all the charge transaction processes, and continue the charge transaction. In the foregoing example, when the first in-vehicle electronic tag completes the transaction, returning to step 401 to begin the transaction of the next tag.

前述实例中，如果第一个车载电子标签的交易发生异常，返回步骤 402 重新进行清点。 In the foregoing example, if the transaction of the first in-vehicle electronic tag is abnormal, return to step 402 to perform an inventory again.

步骤 409 , 车道读写器判断当前天线通信区域内是否还存在车载电子标签，若是，则转入步骤 403; 否则，执行步骤 410; Step 409, the lane reader/writer determines whether there is still an in-vehicle electronic tag in the current antenna communication area, and if yes, proceeds to step 403; otherwise, step 410 is performed;

其中，车道读写器通过发送清点指令给车载电子标签，如果收到应答信号则说明当前天线通信区域内还存在车载电子标签，则对刚刚驶出通信区域的车辆进行补充收费；同时转入步骤 403 , 对车辆进行收费交易。 Wherein, the lane reader/writer provides an in-vehicle electronic tag by sending an inventory command, and if the response signal is received, the vehicle electronic tag is still present in the current antenna communication area, and the vehicle that has just exited the communication area is charged; 403. Charge the vehicle for a transaction.

这里，如图 5所示，当抓拍地感检测到车辆离开天线通信区域时，由于车载电子标签位于车辆头部，此时车载电子标签与车道读写器的距离较远，而且在车道读写器的背面 2~3m处，可以保证车道读写器不会识别到离开天线通信区域的车辆的车载电子标签。这样，在判断天线通信区域内是否还存在车载电子标签时，就不会将已完成收费交易、驶出通信区域的车辆的车载电子标签算在内。 Here, as shown in FIG. 5, when the sense of capture detects that the vehicle leaves the antenna communication area, since the in-vehicle electronic tag is located at the head of the vehicle, the distance between the in-vehicle electronic tag and the lane reader is far, and the lane is read and written. 2~3m on the back of the device, it can be guaranteed that the lane reader will not recognize the on-board electronic tag of the vehicle leaving the antenna communication area. Thus, when it is judged whether or not the in-vehicle electronic tag exists in the antenna communication area, the in-vehicle electronic tag of the vehicle that has completed the charge transaction and exits the communication area is not counted.

步骤 410, 车道读写器进入休眠状态。 In step 410, the lane reader enters a sleep state.

如果当前天线通信区域内不存在车载电子标签，则表示离开天线通信区域的车辆的车载电子标签已完成收费交易，且当前天线通信区域内没有未完成收费交易的车载电子标签，则车道读写器进入休眠状态。 If there is no in-vehicle electronic tag in the current antenna communication area, it indicates that the in-vehicle electronic tag of the vehicle leaving the antenna communication area has completed the charging transaction, and there is no in-vehicle electronic tag in the current antenna communication area that has not completed the charging transaction, then the lane reader/writer Go to sleep.

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。 The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. within the spirit and scope of the invention are intended to be included within the scope of the invention.

Claims

权利要求书 Claim

1、一种电子不停车收费实现方法，其特征在于，该方法包括：在车道读写器的天线通信覆盖范围内设置有触发地感，所述触发地感检测到车辆驶入天线通信区域时，触发车道读写器； A method for implementing an electronic non-stop charging, characterized in that: the method comprises: providing a sense of triggering ground in an antenna communication coverage of a lane reader/writer, wherein the triggering sense sense detects when the vehicle enters the antenna communication area , triggering the lane reader/writer;

接收到所述车道读写器发送的清点指令后，所述车辆携带的车载电子标签发送应答信号给车道读写器； After receiving the inventory command sent by the lane reader/writer, the vehicle-mounted electronic tag carried by the vehicle sends a response signal to the lane reader/writer;

所述车道读写器根据所述应答信号确定车载电子标签对应的身份标识号码 ID , 并将所述车载电子标签对应的 ID送到后台计算机的堆栈中存储，进行收费交易。 The lane reader/writer determines an identity identification number corresponding to the in-vehicle electronic tag according to the response signal, and sends the ID corresponding to the in-vehicle electronic tag to a stack of the background computer for storage.

2、如权利要求 1所述的电子不停车收费实现方法，其特征在于，所述车载电子标签发送应答信号给车道读写器进一步包括： The method for implementing the electronic non-stop charging according to claim 1, wherein the transmitting the response signal to the lane reader/writer by the in-vehicle electronic tag further comprises:

所述车载电子标签解析接收到车道读写器发送清点指令的信号，得到基带信号； The in-vehicle electronic tag parses the signal received by the lane reader/writer to send an inventory instruction to obtain a baseband signal;

所述车载电子标签对发送清点指令的信号进行功率检测，并将功率检测值写入应答信号返回给车道读写器。 The in-vehicle electronic tag performs power detection on the signal for transmitting the inventory command, and returns the power detection value to the response signal to the lane reader/writer.

3、如权利要求 2所述的电子不停车收费实现方法，其特征在于，所述根据所述应答信号确定车载电子标签对应的 ID进一步包括： The method for implementing the electronic non-stop charging according to claim 2, wherein the determining the ID corresponding to the in-vehicle electronic tag according to the response signal further comprises:

所述车道读写器根据应答信号确定车载电子标签的个数，若只有一个车载电子标签，则将该车载电子标签对应的 ID送到后台计算机的堆栈中存储； The lane reader/writer determines the number of in-vehicle electronic tags according to the response signal. If there is only one in-vehicle electronic tag, the ID corresponding to the in-vehicle electronic tag is sent to the stack of the background computer for storage;

若有两个以上车载电子标签，则解析所述应答信号，得到所述功率检测值最大的车载电子标签对应的 ID, 并将所述车载电子标签对应的 ID送到后台计算机的堆栈中存储。 If there are more than two in-vehicle electronic tags, the response signal is parsed to obtain an ID corresponding to the in-vehicle electronic tag having the largest power detection value, and the ID corresponding to the in-vehicle electronic tag is sent to the stack of the background computer for storage.

4、如权利要求 1至 3任一项所述的电子不停车收费实现方法，其特征在于，该方法还包括：在车道读写器的天线通信覆盖范围内设置有抓拍地感，所述抓拍地感检测到所述车载电子标签离开天线通信区域，触发车道读写器对堆栈内完成收费交易的车载电子标签进行清点，若没有清点到，则放行所述车辆，并通知后台计算机对应删除存储在堆栈中的车载电子标签的 ID; 否则，若清点到所述车载电子标签，则对离开通信区域的车辆进行补充收费。 The method for implementing the electronic non-stop charging according to any one of claims 1 to 3, further comprising: Providing a sense of snapping within the antenna communication coverage of the lane reader/writer, the sense of capture detects that the in-vehicle electronic tag leaves the antenna communication area, and triggers the lane reader/writer to perform on-board electronic tags for completing the toll transaction in the stack. If the inventory is not counted, the vehicle is released, and the background computer is notified to delete the ID of the in-vehicle electronic tag stored in the stack; otherwise, if the in-vehicle electronic tag is counted, the vehicle leaving the communication area is supplemented. toll.

5、如权利要求 4所述的电子不停车收费实现方法，其特征在于，所述车载电子标签在进行收费交易时，若遇到清点指令，则将当前收费交易流程暂停，并保存所有相关数据，然后切换到应答清点指令进程； The method for implementing the electronic non-stop charging according to claim 4, wherein, when the in-vehicle electronic tag encounters an inventory instruction, the current charging transaction process is suspended, and all relevant data are saved. And then switch to the answer count instruction process;

并在应答清点指令后，切换到原先暂停的收费交易进程中，恢复所有收费交易流程中的数据，继续进行收费交易。 After answering the inventory command, it switches to the previously suspended charging transaction process, restores the data in all the charging transaction processes, and continues the charging transaction.

6、如权利要求 1至 3任一项所述的电子不停车收费实现方法，其特征在于，该方法还包括： The method for implementing the electronic non-stop charging according to any one of claims 1 to 3, wherein the method further comprises:

车道读写器判断天线通信区域内是否还存在车载电子标签，若是，则发送清点指令给所述车载电子标签，触发收费交易，否则，将车道读写器休眠。 The lane reader/writer determines whether there is an in-vehicle electronic tag in the antenna communication area, and if so, sends an inventory command to the in-vehicle electronic tag to trigger a charging transaction, otherwise, the lane reader/writer is hibernated.

7、一种电子不停车收费***，其特征在于，该***包括： 7. An electronic non-stop charging system, characterized in that the system comprises:

路边单元，设置有车道读写器和天线；其中，所述车道读写器用于发送清点指令给车载电子标签，并根据车载电子标签发送的应答信号确定该车载电子标签对应的 ID, 并将该 ID送到后台计算机存储，之后与车载电子标签进行收费交易通信； a roadside unit is provided with a lane reader/writer and an antenna; wherein the lane reader/writer is configured to send an inventory instruction to the in-vehicle electronic tag, and determine an ID corresponding to the in-vehicle electronic tag according to the response signal sent by the in-vehicle electronic tag, and The ID is sent to the background computer for storage, and then communicates with the in-vehicle electronic tag for charging transactions;

设置在车辆上的车载电子标签，用于接收到所述清点指令后，发送应答信号给车道读写器； An in-vehicle electronic tag disposed on the vehicle, configured to send the response signal to the lane reader/writer after receiving the inventory instruction;

触发地感，设置在车道读写器的天线通信覆盖范围内，所述触发地感用于检测到车辆驶入天线通信区域时，触发车道读写器； The triggering sense is set in the antenna communication coverage of the lane reader/writer, and the triggering sense is used to detect the driving of the lane reader when the vehicle enters the antenna communication area;

后台计算机，用于存储车道读写器发送的 ID, 进行收费交易。 A background computer, used to store the ID sent by the lane reader, for charging transactions.

8、如权利要求 7所述的电子不停车收费***，其特征在于，所述车载电子标签进一步用于： 8. The electronic toll collection system of claim 7, wherein the onboard electronic tag is further used to:

解析接收到车道读写器发送清点指令的信号，得到基带信号；所述车载电子标签对发送清点指令的信号进行功率检测，并将功率检测值写入应答信号返回给车道读写器。 The signal received by the lane reader/writer to transmit the inventory command is parsed to obtain a baseband signal; the in-vehicle electronic tag performs power detection on the signal for transmitting the inventory command, and returns the power detection value to the response signal to the lane reader/writer.

9、如权利要求 7或 8所述的电子不停车收费***，其特征在于，所述车载电子标签在进行收费交易时，若遇到清点指令，则所述车载电子标签还用于将当前收费交易流程暂停，并保存所有相关数据，然后切换到应答清点指令进程；并在应答清点指令后，切换到原先暂停的收费交易进程中，恢复所有收费交易流程中的数据，继续进行收费交易。 The electronic non-stop charging system according to claim 7 or 8, wherein the in-vehicle electronic tag is used to charge the current charge if an inventory instruction is encountered during the charging transaction. The transaction process is suspended, and all relevant data is saved, and then switched to the answering inventory command process; and after answering the inventory command, switching to the previously suspended charging transaction process, restoring the data in all the charging transaction processes, and continuing the charging transaction.

10、如权利要求 7所述的电子不停车收费***，其特征在于，在车道读写器的天线通信覆盖范围内设置有抓拍地感； 10. The electronic toll collection system according to claim 7, wherein a sense of capture is provided within an antenna communication coverage of the lane reader/writer;

所述抓拍地感，用于检测到所述车载电子标签离开天线通信区域，触发车道读写器对堆栈内完成交易的车载电子标签进行清点，若没有清点到，则放行所述车辆，并通知后台计算机对应删除存储在堆栈中的车载电子标签的 ID; 否则，若清点到所述车载电子标签，则对离开通信区域的车辆进行补充收费。 The captured ground sense is used to detect that the in-vehicle electronic tag leaves the antenna communication area, and triggers the lane reader/writer to check the in-vehicle electronic tag that completes the transaction in the stack, and if there is no inventory, the vehicle is released and notified The background computer correspondingly deletes the ID of the in-vehicle electronic tag stored in the stack; otherwise, if the in-vehicle electronic tag is counted, the vehicle leaving the communication area is charged.