CN100394432C - RF electronic label with non-action state and its reading system and control method thereof - Google Patents

RF electronic label with non-action state and its reading system and control method thereof Download PDF

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CN100394432C
CN100394432C CN 200410030732 CN200410030732A CN100394432C CN 100394432 C CN100394432 C CN 100394432C CN 200410030732 CN200410030732 CN 200410030732 CN 200410030732 A CN200410030732 A CN 200410030732A CN 100394432 C CN100394432 C CN 100394432C
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state
end
sleep
electronic tag
radio frequency
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CN 200410030732
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CN1677427A (en
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布鲁斯·罗圣尼
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艾迪讯科技股份有限公司
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Abstract

本发明公开了一种可具不动作状态的射频电子标签,该不动作状态与电子标签电源不相关,该不动作状态与该电子标签重设相关联。 The present invention discloses an electronic radio frequency tag having an inoperative state, the operating state is not associated with an electronic tag is not power, the operation state is not associated with the electronic tag reset. 一般而言,在一实施例中,该电子标签具有一天线、一射频接口和一控制逻辑,该射频接口与该天线相连接,以及该控制逻辑相对应一事件起始一沉睡模式,该沉睡模式具有该不动作状态且与电源不相关,且该控制逻辑在该不动作状态结束后,可提供一跟随状态,其中该跟随状态起始该通讯机制。 Generally, in one embodiment, the electronic tag having an antenna, a radio frequency interface and a control logic, the RF interface is connected to the antenna, the control logic and corresponding to an event initiating a sleep mode, the sleep the operation modes have no state and no power-related, and the control logic at the end of the non-operation state, a following state may be provided, wherein the following state of the initial communication mechanism.

Description

可具不动作状态的射频电子标签 With radio frequency may be inoperative state of the electronic tag

技术领域 FIELD

本发明涉及RFID电子标签设计,例如,一RFID芯片用于电子标签通讯和管理。 The present invention relates to a RFID tag design, e.g., an RFID tag chip for communication and management.

背景技术 Background technique

传统的RFID电子标签具有一些不动作的功能,当在一范围内读取大量的RFID电子标签时,可使用该功能。 Conventional RFID tag does not have some of the functions of the operation, when reading a large number of RFID tags within a range, this function may be used. 当一特定电子标签已经被读取过后,当该电子标签具有电源时,该特定电子标签可设为不动作的状态,以避免该特定电子标签再次被读取。 When after a particular tag has been read, when the electronic tag having a power source, the electronic tag may be set to a particular state does not operate, so as to avoid the particular electronic tag is read again. 传统电子标签可提供一不动作状态。 Conventional electronic tag may provide an inoperative state. 该不动作状态与电源相关联,例如,需藉由一读取器或是一电荷储存装置,以维持电子标签的电源(如,在电子标签的电源中并联一大电容,当电子标签暂时离开读取器的可读取范围时,电子标签不会失去电源)。 The non-operation state with the power supply associated, for example, required by a reader or a charge storage device to maintain the power of the electronic tag (e.g., a large capacitor in parallel with the power of the electronic tag, the electronic tag when temporarily leave the reader may read range, without losing power electronic tag). 该不动作状态可以与电子标签电源不相关,例如,利用电子标签内部时脉,阻断电子标签的输入端或是输出端,该内部时脉不需要电源(例如,接收一"CLOCK〃指令, 一串联开关)。当输入被阻断时,该电子标签无法辨识读取器传送的指令,如美国专利US5963144,该一串联开关可以中断天线的连接,该串联开关是一RC电路。当输出被阻断,该电子标签可以继续辨识读取器传送的指令,但是无法产生相对应的动作,如美国专利申请公开No.2002/0097143Al,其阻断输出端的输出信号。 The inoperative state of the label may not be associated with an electronic power supply, for example, when the electronic tag using an internal clock, an input terminal block or the output of the electronic tag, the internal clock does not need power supply (e.g., receiving a "command CLOCK〃, a tandem switch). when the input is interrupted, the electronic tag reader does not recognize the instruction transmitted, as described in U.S. Patent No. US5963144, a series switch that can disconnect the antenna, the series switch is a RC circuit. when the output is blocking, the electronic tag reader may continue to transmit the identification instruction, but can not generate a corresponding action, as described in US Patent application Publication No.2002 / 0097143Al, which blocks the output of the output signal.

发明内容 SUMMARY

本发明的主要目的提供一种可具不动作状态的电子标签该电子标签具有一不动作状态,且该不动作状态与电子标签电源无关。 The main object of the present invention to provide a non-operating state with the electronic tag having a tag inoperative state and the inoperative state regardless of the power electronic tag. 该不动作状态与该电子标签重设相关联。 The operation state is not associated with the electronic tag reset.

本发明的电子标签具有一天线、 一射频接口和一控制逻辑,该射频接口与该天线相连接,以及该控制逻辑相对应一事件起始一沉睡模式,该沉睡模式具有该不动作状态且与电源不相关,且该控制逻辑在该不动作状态结束后,可提供一跟随状态,其中该跟随状态起始该通讯机制。 The electronic tag has an antenna of the present invention, a radio frequency interface and a control logic, the RF interface is connected to the antenna, the control logic and corresponding to an event initiating a sleep mode, the sleep mode having the non-operating state, and with power uncorrelated, and the control logic at the end of the non-operation state, a following state may be provided, wherein the following state of the initial communication mechanism. 电子标签具有不动作的一沉睡模式,该电子标签可以维持该沉睡模式,甚至该电子标签离开读取器的读取范围并且再次回到读取器的读取范围。 A sleep mode of the electronic tags have not operated, the electronic tag may maintain the sleep mode, even away from the electronic tag reading range of the reader and the read range of the reader back again. 该沉睡模式可避免突然进入读取器和其它电子标签的通讯过程。 The sleep mode into the communication process to avoid sudden readers and other electronic tag. 可增加RFID的使用弹性。 Increased use of RFID elasticity. 此外,该电子标签的沉睡 In addition, the electronic tag sleeping

模式可在接收到读取器的一指令后,该电子标签结束该沉睡模式,可提供使用的便利性。 Mode after receiving a command to the reader, the electronic tag end of the sleep mode, the convenience of use. 读取器通常需要快速读取复数个电子标签,该沉睡模式可以避免一个电子标签被多次读取。 The reader typically require fast read a plurality of electronic tag, the electronic tag a sleep mode to avoid being read multiple times. 可以减少反复读取电子标签,以增加读取器系统的效率。 Repeatedly reading the electronic tag can be reduced to increase the efficiency of the reader system.

本发明的系统和方法可以降低电子标签的制造成本。 The system and method of the present invention can reduce the manufacturing cost of the electronic tag. 下面结合附图以具体实例对本发明进行详细说明。 The following specific examples of the present invention is described in detail in conjunction with the accompanying drawings.

附图说明 BRIEF DESCRIPTION

图1是具有沉睡模式的电子标签方框图; FIG. 1 is a block diagram of an electronic tag having a sleep mode;

图2是一高频电子标签读取器和复数个具有沉睡模式的高频电子标签的方框图; And FIG. 2 is a block diagram showing a plurality of high frequency electronic tag reader having a sleep mode a high frequency electronic tag;

图3是运作模式状态图,该电子标签的控制逻辑可起始一沉睡模式; FIG 3 is a state diagram mode of operation, the control logic of the electronic tag can initiate a sleep mode;

图4是另一运作模式状态图,该电子标签的控制逻辑可起始一沉睡模式; FIG 4 is a state diagram of another mode of operation, the control logic of the electronic tag can initiate a sleep mode;

图5是图4的变化实施例; 5 is a variation of the embodiment of FIG 4;

图6是图4的另一变化实施例; FIG 6 is another variation of embodiment according to Figure 4;

图7是电子标签的沉睡模式电路较佳实施例。 FIG 7 is a sleep mode of the circuit of the preferred embodiment of the electronic tag.

附图标记说明:100被动式电子标签;110天线;120射频接口; 130控制 REFERENCE SIGNS: passive electronic tag 100; 110 antenna; RF interface 120; 130 control

逻辑;140记忆单元;320、 322、 324通讯状态;340、 440沉睡模式;410睡眠状态;430隔离状态;700电路;Pl、 P2、 P3、 N4晶体管;Cl电容;Ll负载单元。 Logic; a memory unit 140; 320, 322, 324 communication status; 340, 440 sleep mode; sleep state 410; isolation 430; 700 circuit; Pl, P2, P3, N4 transistor; CI capacitor; Ll loading unit.

具体实施方式 Detailed ways

如图1所示,被动式电子标签100可操作在一沉睡模式中。 As shown in FIG. 1, the passive electronic tag 100 is operable in a sleep mode. 该电子标签IOO具有一天线110、 一射频接口120和一控制逻辑130。 The IOO electronic tag having an antenna 110, a RF interface 120 and a control logic 130. 该电子标签还具有一记忆单元140。 The electronic tag further having a memory unit 140. 当该电子标签100运作在一低频频带,LB(例如13.56MHz)时, 该电子标签100可与一读取器的线圈进行感应耦合以产生一电子标签所需的电源。 When the electronic tag 100 operates in a low frequency band, LB (e.g. 13.56MHz), the electronic tag 100 can be inductively coupled to the reader coil to produce a supply of a desired electronic tag. 或者在超高频频带(ultra-high frequency ,UHF)或一微波RFID系统时,可藉由一射频耦合产生电源。 Or a UHF band (ultra-high frequency, UHF) RFID system or a microwave may be generated by an RF power source is coupled. 该射频接口120、该控制逻辑130和该记忆单元140 可整合配置在一IC中,例如低功率互补金属氧化半导体集成电路(low-power Complementary Metal-Oxide Semiconductor IC)。 The RF interface 120, the control logic 130 and the memory unit 140 can be integrated into an IC arranged in, for example, low-power complementary metal oxide semiconductor integrated circuit (low-power Complementary Metal-Oxide Semiconductor IC). 该射频接口120是IC的模拟部分,该控制逻辑130和该记忆单元140是IC的数字部分。 The analog RF interface 120 portion of the IC, the control logic 130 and the memory unit 140 is a part of the digital IC. 该记忆单元140是一非易失可擦写的存储器,例如,电可清除可编程只读存储器(Electrically Erasable Programmable Read Only Memory)。 The memory unit 140 is a rewritable non-volatile memory, e.g., electrically programmable read only memory can be cleared (Electrically Erasable Programmable Read Only Memory). 该IC具有一天线调谐电容和一射频/直流整流系统,用以耦接该天线110。 The IC having a tuning capacitance line and a one day RF / DC rectification system for coupling to the antenna 110. 该天线IIO可提供被动式电子标签所 The antenna may be provided IIO passive electronic tag

需的电源并且驱动电子标签。 Required drive power source and an electronic tag. 该天线110可依据RFID的类型选择不同型态和尺寸的天线。 The antenna 110 may select a different antenna patterns and sizes depending on the type of RFID. 该控制逻辑130具有一数字控制电路和一数据调制电路,该控制逻辑130会起始一沉睡模式,用以相对应一事件,例如:该事件是电子标签收到一沉睡指令或是电子标签收到相关指令序列中的最后的一指令。 The control logic 130 having a digital control circuit and a data modulation circuit, the control logic 130 will initiate a sleep mode for a corresponding event, such as: the event is a sleep command is received electronic tag or a tag closing Related to the last instruction in a sequence of instructions. 该沉睡模式具有一不动作状态,该不动作状态与电子标签的电源不相关。 The sleep mode having a non-operating state, the non-operation state of the power supply and the electronic tag is not relevant. 在此不动作状态下,该控制逻辑130和射频接口120仍为可运作状态。 In this inoperative state, the control logic 130 and RF interface 120 is still functional state.

该控制单元130会提供一跟随状态,当该不动作状态结束后,该电子标签随即进入该跟随状态,其中,通讯机制起始于该跟随状态。 The control unit 130 provides a following state, when the end of the non-operating state, the electronic tag goes into the following state, wherein, in the initial communication mechanism following state. 该跟随状态其系可为一通讯状态、 一隔离状态、或是再次不动作状态,其它更详细说明如后。 The following state which can be a communication line state, an isolation or inoperative state again, as described in more detail after the other. 此外,该不动作状态其系可藉由一内部定时器使其终止(例如,IC中的一RC充电电路的自然电压衰减)或接收一指令使其终止,例如,从一读取器接收到一全醒指令。 In addition, the system can be inoperative state in which it terminated by an internal timer (e.g., the natural voltage of the IC is an RC charging circuit attenuation) or receives a command to terminate it, e.g., received from a reader to a full wake command. 该控制逻辑130可确保一沉睡电子标签不会在一指令序列的中间或是当一读取器正在和其它的电子标签进行通讯时,恢复为通讯。 The control logic 130 can not ensure a deep sleep, or when the electronic tag reader is an electronic tag and other communication, the communication is restored in the middle of a sequence of instructions. 该控制逻辑130 可要求该电子标签100执行指令序列的开始,进入一半睡眠状态。 The control logic 130 may request the start instruction sequence 100 to the electronic tag, enters the half sleep. 因此,当电子标签100可以继续辨认一唤醒指令,该电子标签100不是处于沉睡模式,但该电子标签会忽略其它指令。 Therefore, when the electronic tag 100 may continue to recognize a wake-up command, the electronic tag 100 is not in sleep mode, but it ignores other electronic label instructions. 当该电子标签进入睡眠状态时,该电子标签可处于沉睡模式且保持在该沉睡状态,直到下列两个情况发生:(l)该电子标签接收一特殊唤醒指令(2)内部定时器计时完成。 When the electronic tag enters the sleep state, the electronic tag may be in sleep mode and remain in the sleep state until the following two cases occurs: (l) the electronic tag receives a special wake-up command (2) to complete the internal timer. 当该电子标签从沉睡模式醒来时,该电子标签可以执行读取器传送的其它指令。 When the electronic tag to wake up from sleep mode, the electronic tag may execute other instructions transmitted by the reader. 因此,该电子标签处于不动作状态时,不会动作,并且该不动作状态与电子标签的电源不相关;甚至电子标签离开读取范围一适当周期时间内,该电子标签仍然可以处于该不动作状态,该电子标签内部不需有一电源即可维持该不动作状态。 Accordingly, the electronic tag in the inactive operating state, does not operate, and the non-operation state is not associated with the power of the electronic tag; even electronic tag within the read range to leave a suitable period of time, the electronic tag may still be in the non-operation state, the interior of the electronic tag does not need a power supply to the non-operation state is maintained. 当该电子标签IOO处于该不动作状态时,该控制逻辑130仍然可辨识一指令,用以驱动该电子标签从沉睡模式醒过来。 When the electronic tag in the non-IOO operation state, the control logic 130 can still identify a command for driving the electronic tag to wake up from the sleep mode. 该电子标签藉由接收指令或是内部中止机制而醒过来时,该电子标签可以防范进入一读取器和其它电子标签的通讯过程。 When receiving an instruction by the electronic tag or an internal wake up and abort mechanism, which can prevent the electronic tag enters a communication process, and other read electronic tag. 以确保电子标签100 不会在一读取器和其它电子标签的通讯过程醒过来。 To ensure that the electronic tag 100 will not wake up in the communication process a reader and other electronic tags. 该沉睡模式可适用于被动式RFID以及管理协议以减少电子标签之间的干扰和增加电子标签读取器的效率。 The sleep mode may be applied to passive RFID management protocol and to reduce interference between the electronic tag and to increase the efficiency of the electronic tag reader.

如图2所示,为一高频电子标签读取器系统200和复数个具有沉睡功能的高频被动式电子标签230的方框图。 As shown in FIG. 2, a block diagram of a high-frequency passive electronic tag 230 having a sleep function is a high frequency electronic tag reader system 200 and the plural. 该读取器系统200具有一读取器210和数个读取器天线220。 The reader system 200 has a reader 210 and a number of reader antenna 220. 该读取器210包括有一RF收发单元、 一信号处理单元和一控制单元。 The reader 210 comprises a RF transceiver unit, a signal processing unit and a control unit. 此外,该系统200还包括有一主系统(图未示),该主系统与该读取器相连接,主系统可以传输资料至电子标签230。 In addition, the system 200 further comprises a host system (not shown), which is connected to the host system reader, the host system may transfer data to the electronic tag 230. 该些读取器天线会产生重迭区域,可使读取器21多路读取全部的高频被动式电子标签230。 The plurality of reader antenna generates overlapping region, multiple reader 21 can read all of the high-frequency passive electronic tag 230. 一般而言, Generally,

该读取器系统200可提供至少一读取器天线至一群组中的每个电子标签,该天线与该电子标签具有45度至90度的角度。 The reader system 200 may provide at least a reader antenna in a group to each electronic tag, the electronic tag antenna having an angle of 45 degrees to 90 degrees. 系统200可读取电子标签,例如使用一二分搜寻协议,当该电子标签进入该沉睡模式时,可短暂失去读取功效。 The system 200 can read the electronic tags, for example, twelve points search protocol, when the electronic tag enters the sleep mode, you can read a brief loss of efficacy. 因此,在沉睡模式的电子标签在不动作的情况,可短暂提供电子标签电源。 Thus, in the sleep mode in an electronic tag without operation, can provide temporary power electronic tag. 该电子标签可藉由一适当指令醒过来,且该电子标签处于沉睡模式时,会忽略其它指令。 The electronic label can be by a suitable instruction to wake up, and the electronic tag is in sleep mode, it ignores further instructions. 该沉睡模式可提供读取器210跟电子标签230通讯和管理更具有弹性运用的功效。 The sleep mode may be provided with an electronic tag reader 210 230 communication and management more flexible use of efficacy. 当一电子标签处于该沉睡模式时,该读取器210可持续的进行传输动作,但是该电子标签不会在一指令序列的中间醒过来,且不会突然地跳入其它电子标签和读取器的通讯过程。 When an electronic tag in the sleep mode 210 will be sustainable transfer operation of the reader, but will not wake up the electronic tag in the middle of a command sequence, and does not suddenly jump other electronic tags and readers communication is the process. 该电子标签230可设计为只有在一指令序列的开始,与该读取器210进行通讯。 The electronic tag 230 may be designed to begin only in a sequence of instructions to communicate with the reader 210. 此外,电子标签还具有数个睡眠阶段, 详细说明如后,该复数个睡眠阶段可使电子标签的通讯和管理具有更多的选择性。 In addition, the electronic tag further includes a plurality of sleep stages, as will be described in detail, the plurality of sleep stages enables communication and management of the electronic tag having more selective.

图3是一运作状态图300,具有一沉睡模式,该被动式电子标签的控制逻辑可启始该沉睡模式。 FIG. 3 is an operational state diagram 300, having a sleep mode, the control logic of the passive electronic tag can initiate the sleep mode. 复数个通讯状态320、 322、 324,电子标签处于该通讯模式下可执行一指令序列,通讯状态320是初始通讯状态。 A plurality of communication state 320, 322, 324, the electronic tag is a sequence of instructions executable, the communication state in the communication mode 320 is the initial communication state. 该通讯状态接收到一指令后,可转换至一新模式或是产生相对应的动作。 After the communication state receives an instruction to change to a new mode or generate a corresponding operation. 例如, 一指令是一二分搜寻协议的部分指令,该读取器会对读取范围内的电子标签进行反复询问动作,用以获得电子标签内部特定数位位置的特定数值,且电子标签会响应该指令产生相对应的动作。 For example, the instruction is part of a search protocol instruction twelve points, the electronic tag within the read range of the reader will be repeated inquiries operation, to obtain a specific internal electronic tag digit position of a particular value, and the electronic tag will ring It should generate a corresponding operation instruction. 任何通讯状态都可激活该沉睡模式,如接收到一沉睡指令或是在一指令序列结束后,自动进入该沉睡模式。 Any communication can activate the sleep mode state, a sleep instruction as received or after a sequence of instructions, automatically enters the sleep mode. 该沉睡模式340是一不动作状态,该不动作状态与电子标签的电源不相关,且该控制逻辑会提供一跟随状态,当该不动作状态结束后,电子标签可进入该跟随状态,该跟随状态可为该初始通讯状态320。 The sleep mode 340 is a non-operating state, the power of the non-operating state of the electronic tag is not relevant, and the control logic provides a following state, when the end of the non-operating state, the electronic tag may enter the following state, the follow 320 may be the initial state for the communication status. 该沉睡模式340可在接收一唤醒指令结束该沉睡模式或是藉由一内部终止机制使该沉睡模式结束。 The sleep mode may be a wake-up command 340 ends the sleep mode or by an internal mechanism for terminating the sleep mode so that the receiving end. 该唤醒指令可设计为只能唤醒一特定电子标签或是设计为可唤醒全部的电子标签的唤醒指令。 The wake-up instructions can be designed as a wake-up only a specific tag or all designed to wake wakeup instruction electronic tag. 当该沉睡模式340 结束后且进入该初始通讯状态320时,当接收到的指令不为一指令序列的开始, 该电子标签则处于高通讯状态322-324,此时该电子标签不动作,因为该电子标签刚刚离开沉睡模式且会保持于该初始通讯状态320,直到电子标签接收到指令集的开始指令,才会开始作动。 When the sleep mode 340 and into the end of the initial communication state 320, when the received command is not the beginning of a sequence of instructions, the electronic communications tag is in a high state 322-324, the electronic tag does not move at this time, since the electronic tag just leave sleep mode and remain in the initial communication state 320, the start instruction is received until the electronic tag of the instruction set, it will begin actuation.

图4是另一运作状态图400,具有一沉睡模式,该被动式电子标签的控制逻辑可激活该沉睡模式。 4 is another operational state of FIG. 400, has a sleep mode, the control logic of the passive electronic tag may activate the sleep mode. 当一读取器激活该电子标签时,该电子标签即进入该睡眠状态410。 When a reader activates the electronic tag, the electronic tag 410 that is entering the sleep state. 该睡眠状态410使得该电子标签进入一通讯状态420之前,必需等到读取器发出一识别指令,该电子标签才会进入该通讯状态420,该识别指令可为一半醒指令、 一全醒指令或是一指令序列的开始。 The sleep state 410 such that the electronic tag 420 enters a communication state before, it is necessary to wait until the reader emits an identification command, the tag will enter the communication state 420, the identification may be a half awake instruction command, a wake up command or the whole It is the beginning of a sequence of instructions. 因此,该通讯状态具有数个不同的通讯状态,如同图3所述,且该睡眠状态可设为初始通讯状态。 Thus, the communication state with a number of different communication state, as described in FIG. 3, and the sleep state can be set to the initial communication state. 一电子标签可以进入一隔离模式430,该电子标签在读取范围内为一隔离状态, 且在接收一隔离指令即进入该隔离模式,或是一指令序列的结束则自动进入该隔离模式。 A tag 430 may enter an isolation mode, the electronic tag within the read range is an isolated state, and enter into a receiving mode of the isolation barrier instructions or an instruction to end the sequence automatically enters isolation mode. 该电子标签侦测到一半醒指令、 一全醒指令和一指令集的开始后, 即离开该隔离模式430或是回到通讯状态420。 The electronic tag detects half awake instruction, after the start of a full wake command and a set of instructions that leave the isolation mode 430 or 420 back to the state newsletter. 该睡眠状态和隔离模式410, 430都与电子标签的电源相关,该睡眠状态和隔离状态410, 430在控制逻辑可视为相同状态或是一个特定的逻辑状态,视需求而定。 The sleep mode 410 and the spacer 430 are related to the power of the electronic tag, and isolation of the sleep state 410, control logic 430 may be regarded as the same state or a particular logic state depending on demand. 该沉睡模式440如同上述,此外该沉睡模式在接收一全醒指令后,即结束该沉睡模式。 The sleep mode 440 as above, in addition to the sleep mode after receiving a command to wake up the whole, i.e. the end of the sleep mode. 该电子标签可以区分该全醒指令和半醒指令,并且该全醒指令可为一特定电子标签的全醒指令或是复数个裕电子标签的全醒指令。 The electronic tag can distinguish between a whole and half awake instruction to wake up instruction, and the instruction may be the full full awake instruction to wake a specific electronic tag or a plurality of instructions to wake up the whole electronic label margin. 例如,该半醒指令可使得读取范围内的电子标签从睡眠状态或隔离状态410, 430恢复为通讯状态,该全醒指令可使得读取范围内的电子标签从睡眠状态、隔离状态或是沉睡状态410、 430、 440 恢复为通讯状态。 For example, such instructions may awake the electronic tag within the read range of recovery from a sleep state or the isolation 410, 430 of the communication state, such that the instructions may wake up the whole electronic tag within the read range from the sleep state, or isolation sleeping state 410, 430, 440 to restore communication status. 其它半醒或全醒指令的组合运用,都是视需求而选用。 Use a combination of other awake or wake up full instructions, are selected depending on demand. 该半醒指令可使得读取范围内的电子标签从睡眠状态410恢复为通讯状态,该全醒指令可使得读取范围内的电子标签从睡眠状态、隔离状态或是沉睡状态410、 430、 440恢复为通讯状态。 The awake instructions may enable the electronic tag within the read range 410 returns from the sleep state to the communication state, such that the instructions may wake up the whole electronic tag within the read range from the sleep state, the sleep state or the isolation 410, 430, 440 restore the communication status. 该半醒指令可使得读取范围内的电子标签从睡眠状态410恢复为通讯状态,该全醒指令可使得读取范围内的电子标签从睡眠状态或沉睡状态410、 440恢复为通讯状态。 The awake instructions may enable the electronic tag within the read range 410 returns from the sleep state to the communication state, such that the instructions may wake up the whole electronic tag within the read range of recovery from a sleep state or the sleeping state 410, state 440 for communications. 该半醒指令可使得读取范围内的电子标签从睡眠状态或隔离状态410, 430恢复为通讯状态,该全醒指令可使得读取范围内的电子标签从睡眠状态、沉睡状态410、 440恢复为通讯状态。 The awake instructions may enable the electronic tag within the read range of recovery from a sleep state or the isolation 410, 430 of the communication state, such that the instructions may wake up the whole electronic tag within the read range 410, 440 returns from the sleep state, the sleep state for the communication status. 另一实施例,该隔离状态不会受该全醒指令和半醒指令影响,或是另有其它指令可结束该隔离状态,或是没有其它指令可结束该隔离状态(例如,该隔离状态只有当电子标签离开读取范围内,才会结束)。 Another embodiment, the isolated state is not affected by the instruction and awake instruction to wake up the whole impact, other instructions or otherwise may end the isolation or without isolation of the other instructions may end state (e.g., state only the spacer when the electronic tag to leave the reading range will end).

图5是图4的运作状态图的变化实施例。 FIG 5 is a variation of the operation state of FIG. 4 embodiment. 在此变化实施例,该跟随状态可为一隔离状态,例如当该不动作状态的终止后,该沉睡状态则转变为该隔离状态。 In this variant embodiment, the following state may be a state of isolation, for example when the non-operation state after the termination of the sleep state transitions for the isolation. 图5是图4的运作状态图的另一变化实施例。 FIG 5 is another variation of embodiment of FIG. 4 operating according to the state of FIG. 该跟随状态可为再次不动作状态,例如当该不动作状态的终止后,再次进入该沉睡状态。 The following state may be inoperative state again, for example after termination of the non-operation state of the re-entering the sleep state.

图7是被动式电子标签沉睡状态的驱动电路700的电路图。 FIG. 7 is a circuit diagram of a driving circuit 700 passive electronic tag sleeping state. 该电路700具有电源线(VR)、接地线(GND)、输出端(OUT)、 一电容Cl、 一负载单元Ll, 以及四个晶体管N1、 Pl、 P2、 P3。 The circuit 700 has a power supply line (VR), a ground line (GND), the output terminal (OUT), a capacitor Cl, a load unit Ll, and four transistors N1, Pl, P2, P3. 该电子标签处于一般模式时,晶体管P1、 P3关闭,且两者之间的连结点是高电位,因此该输出端是低电位。 When the electronic tag in the general mode, the transistors P1, P3 off, and the junction point between the two is high, so that the output terminal is low. 该电子标签处于沉睡模式时,晶体管P1开启,使得连结点为低电位且该输出端是高电位。 When the electronic tag in the sleep mode, the transistor P1 is turned on, so that the connection point of the low potential and the high potential output terminal. 经过一段时间后,电容Cl对负载单元Ll放电,最后该输出端再次回到低电位。 After some time, the load capacitance Cl Ll discharge unit, and finally back again to the low-potential output terminal. 欲结束该沉睡模式时,开启P3,将电路重设为初始状态。 When the sleep mode is to be ended, P3 is turned on, the circuit is reset to the initial state. 该负载单元L1可避免过早触发电路700的危险,例如当Pl的漏电流大于P3的漏电流。 The load unit L1 trigger circuit 700 can avoid the risk of premature, for example when Pl is greater than P3, the leakage current of the leakage current. 此外,Cl 和Ll可依据减少该电路700离开该沉睡状态的机会加以选择裕。 Further, Cl can be based on Ll and reduce the chance of the circuit 700 leaves the sleeping state be selected margin. Pl是接地, 比较传统CMOS逻辑,P信道接电源线且N信道接地时, 一旦进入该沉睡模式,电压加于电容C1两端。 Pl is grounded, more traditional CMOS logic, P the power line channel and N-channel grounded, upon entering the sleep mode, the voltage applied to both ends of the capacitor C1. 如果电压随后消失且VR下降至O电压,该电容两端的电压低于该地电压,因此N信道的汲极会对电容C1正向放电。 If the voltage is then decreased to O disappeared and the voltage VR, the voltage across the capacitor is lower than the ground voltage, the drain of N-channel forward capacitor C1 will discharge. 因此当电压回复时,电路就会不处于该沉睡模式。 Therefore, when the voltage returns, the circuit will not be in the sleep mode. 因此将晶体管Pl接地,以防止且避免这种情况发生。 Thus transistors Pl grounded to prevent and avoid this.

Claims (13)

1、一种具有不动作状态的射频电子标签,其特征在于:其包括: 一天线; 一射频接口,耦接天线;以及一控制逻辑,通过激活一沉睡模式,来响应一事件,该沉睡模式具有一不动作状态,该不动作状态通过接收一唤醒指令或是内部中止机制而结束该不动作状态,且该控制逻辑在该不动作状态结束后,提供一跟随状态,该跟随状态启动通讯机制,其中,该控制逻辑还提供一睡眠状态和一隔离状态,该睡眠状态起始于电子标签的电源供应,该隔离状态起始于接收到一隔离指令,该睡眠状态和该隔离状态都与电子标签的电源相关。 1, having an inoperative state of a radio frequency electronic label, characterized in that: it comprises: an antenna; a radio interface coupled to the antenna; and a control logic, by activating a sleep mode in response to an event, the sleep mode having a non-operating state, the non-operation state is not the end of the operation state by receiving a wakeup command or the internal suspension mechanism, and the control logic after the operation completion state does not provide a following state, the following state starts communication mechanism wherein the control logic further providing a sleep state and an isolated state, the sleep state of the power supply to start an electronic tag, the isolation start instruction to receiving a spacer, the spacer and the sleep state are associated with the electronic power tab related.
2、 如权利要求1所述的射频电子标签,其特征在于:跟随状态包含复数个通讯状态,其中所述的复数个通讯状态中有一初始通讯状态,在该初始通讯状态接收到一指令序列时,其它的复数个通讯状态开始执行该指令序列。 When the following state comprising a plurality of communication state, wherein said plurality of communication status of a communication initial state, receives a sequence of instructions in the initial communication status: 2, a radio frequency electronic tag as claimed in claim 1, characterized in that , the other plurality of communication status starts executing the instruction sequence.
3、 如权利要求2所述的射频电子标签,其特征在于:该指令序列至少包括有一二分搜寻协议。 3, a radio frequency electronic tag as claimed in claim 2, wherein: the instruction sequence comprising at least twelve points search protocol.
4、 如权利要求2所述的射频电子标签,其特征在于:该沉睡模式在接收到一沉睡指令后激活。 4, a radio frequency electronic tag as claimed in claim 2, wherein: the sleep mode is activated after receipt of a sleep instruction.
5、 如权利要求1所述的射频电子标签,其特征在于:在接收到一全醒指令后,该睡眠状态、该隔离状态和该不动作状态都会结束;但接收到一半醒指令时,该不动作状态不会结束。 5, a radio frequency electronic label as claimed in claim 1, wherein: after receiving a full wake command, the sleep state, the isolation and the inoperative state comes to an end; half awake when it receives an instruction, the no state action will not end.
6、 如权利要求1所述的射频电子标签,其特征在于:在接收到一全醒指令后,该睡眠状态、该不动作状态都会结束但该隔离状态不会结束;接收到一半醒指令时,该睡眠状态和该隔离状态都会结束,但该不动作状态不会结束。 Upon receiving the wake up instruction half; full after receiving a wake up command, the sleep state, the operating state does not end, but will not end the isolation: 6, the RF tag as claimed in claim 1, characterized in that the sleep state and the isolated state will end, but the state does not end the action.
7、 如权利要求1所述的射频电子标签,其特征在于:在接收到一全醒指令后,该睡眠状态、该不动作状态都会结束但该隔离状态不会结束;接收到一半醒指令时,该睡眠状态会结束,但该不动作状态和该隔离状态不会结束。 Upon receiving the wake up instruction half; full after receiving a wake up command, the sleep state, the operating state does not end, but will not end the isolation: 7, the radio frequency tag as claimed in claim 1, characterized in that this will end the sleep state, but the state does not operate and the isolation will not end.
8、 如权利要求1所述的射频电子标签,其特征在于:在接收到一全醒指令后,该睡眠状态、该不动作状态和该隔离状态都会结束;接收到一半醒指令时,该睡眠状态结束,但该不动作状态和该隔离状态不会结束。 8, a radio frequency electronic label as claimed in claim 1, wherein: after receiving a full wake command, the sleep state, the operating state does not come to an end and the isolation; half awake upon receiving the instruction, the sleep end state, but the state does not operate and the isolation will not end.
9、 如权利要求1所述的射频电子标签,其特征在于:该射频接口具有一CMOS模拟IC,该控制逻辑具有一CMOS数字IC,且该不动作状态的内部终止机制具有一CMOS IC内的RC充放电电路。 9, a radio frequency electronic label as claimed in claim 1, wherein: the radio interface having a CMOS analog IC, the digital control logic of the IC having a CMOS, and the non-operating state with the internal termination mechanism of a CMOS IC RC charge-discharge circuit.
10、 如权利要求1所述的射频电子标签,其特征在于:该不动作状态在内部终止后,该跟随状态具有一隔离状态,且该沉睡状态和该隔离状态在接收一全醒指令后结束。 10, a radio frequency electronic label as claimed in claim 1, wherein: the non-operating state after an internal termination, a spacer having the following state state and the sleep state and the end of the isolation the full after receiving a wake up command .
11、 如权利要求1所述的射频电子标签,其特征在于:该不动作状态在内部终止后,该跟随状态具有一再次不动作状态,且该沉睡状态在接收一全醒指令后结束。 11, a radio frequency electronic label as claimed in claim 1, wherein: the non-operating state after an internal termination, the following state having a non-operating state again, and the end of the sleep state after receiving a wake-wide instructions.
12、 如权利要求1所述的射频电子标签,其特征在于:该天线具有一近场耦合组件,设置于一高频频带。 12, a radio frequency electronic label as claimed in claim 1, wherein: the antenna has a near-field coupling assembly provided in a high frequency band.
13、 如权利要求1所述的射频电子标签,其特征在于:还包括有一非易失性存储器。 13, a radio frequency electronic label as claimed in claim 1, characterized in that: further comprising a non-volatile memory.
CN 200410030732 2004-04-01 2004-04-01 RF electronic label with non-action state and its reading system and control method thereof CN100394432C (en)

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