CN100578952C - Wireless response device, image forming apparatus, and equipment - Google Patents

Wireless response device, image forming apparatus, and equipment Download PDF

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CN100578952C
CN100578952C CN 200610066980 CN200610066980A CN100578952C CN 100578952 C CN100578952 C CN 100578952C CN 200610066980 CN200610066980 CN 200610066980 CN 200610066980 A CN200610066980 A CN 200610066980A CN 100578952 C CN100578952 C CN 100578952C
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antenna
unit
identification signal
signal generating
signal
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CN 200610066980
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CN1878192A (en
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不野浩之
水谷良太
渡部雅夫
饭田靖
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富士施乐株式会社
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Abstract

A antenna response device, a image forming devicem and device are provided. A wireless response device comprises an antenna that receives a question signal, an identification signal generating unit that generates a response signal for a question signal received by the antenna, and that operates passively, and an impedance conversion unit provided between the antenna and the identification signal generating unit, whose impedance changes in response to the state of the environment.

Description

无线应答装置、图像形成装置,以及设备技术领域 Wireless transponder device, an image forming apparatus, and TECHNICAL FIELD

本发明涉及无线应答装置和图像形成装置,以及使用该无线应答装置的电子设备。 The present invention relates to wireless transponder device and an image forming apparatus, and using the electronic apparatus of the wireless transponder.

背景技术 Background technique

用于检测设备状态的状态检测传感器广泛用于诸如复印机和打印机的电子设备中。 State detection sensor for detecting the state of the device is widely used in electronic devices such as copiers and printers. 作为状态检测传感器,例如,使用利用电短路或断路(release)来检测状态的开关,以及通过光的遮断或透射来检测状态的光遮断器。 As state detection sensor, for example, using an electrical short or open circuit by using a switch (release) state is detected, and by blocking or transmitting light to the photo-interrupter detection state. 例如在纸张通过传感器的情况下,状态检测传感器通常在对纸张是否通过的二元状态进行检测的应用中使用。 For example, when the paper passes through the sensor, a state detecting sensor of binary states usually carried out by application of paper is used in the detection. 在这种情况下,电子设备根据纸张通过传感器的检测结果进行电子设备的操作控制和状态监测。 In this case, the electronic device control and status monitoring operation of the electronic device based on detection results of the sheet by the sensor.

日本专利特开JP 2004-32052A公开了一种无线传感器(无线应答装置),其检测一个设备的开/关部分的开/关状态。 Japanese Patent Laid-Open JP 2004-32052A discloses a wireless sensor (wireless transponder device), a device that detects the opening the opening / closing portion of the on / off state. 该无线传感器通过将导体放置在天线附近来改变设备的电磁波的状态,从而检测开/关部分的开/关状态。 The wireless sensor by a conductor placed near the antenna device to change the state of the electromagnetic wave, thereby detecting the opening open / close state / off portion. 另夕卜,在非专利文献1 (L. Reindl等人,Ultrasonics Symposium Proceedings, Institute of Electrical and Electronics Engineers (IEEE), SAW Devices as Wireless Passive Sensors, 1996,第363-367 页)和非专利文献2 (F. Schmidt等人,Ultrasonics Symposium Proceedings, Institute of Electrical and Electronics Engineers (IEEE), Remote Sensing of Physical Parameters By Means of Passive Surface Acoustic Wave Devices( "ID-Tags" ), 1994,第589-592页) 中,公开了使用所谓的SAW-ID (表面声波识别)的无线传感器。 Another Bu Xi, in Non-Patent Document 1 (L. Reindl et al., Ultrasonics Symposium Proceedings, Institute of Electrical and Electronics Engineers (IEEE), SAW Devices as Wireless Passive Sensors, 1996, pp. 363-367), and Non-Patent Document 2 (F. Schmidt et al., Ultrasonics Symposium Proceedings, Institute of Electrical and Electronics Engineers (IEEE), Remote Sensing of Physical Parameters By Means of Passive Surface Acoustic Wave Devices ( "ID-Tags"), 1994, on pages 589-592) discloses a wireless sensor using a so-called SAW-ID (surface acoustic wave recognition).

在诸如开关或光遮断器的状态检测传感器中, 一般通过有线方式进行供电以及信号的发送和接收。 In the state detection sensor such as a switch or a photointerrupter, a general power supply and for transmitting and receiving signals via a wired manner. 当使用电力线时,存在这样的问题:当设备处于待机状态时也要消耗电力,或者由于从电力线混入的噪声而引起了故障。 When using a power line, there is a problem: when the device is in a standby state which consumes power, or due to mixing of noise from the power line and causes a fault. 此外,还存在如下问题:当在一个设备中使用多个状态检测传感器时布线变得复杂,并且在制造或维护过程中需要许多工时。 Further, there is a problem: when a plurality of state detection sensor in a device wiring becomes complicated, and the manufacturing or maintenance process requires many man-hours. 此外, 还存在如下问题:在使用近年来所谓的无铅材料的连接器中,这些材料随着时间的损坏阻碍了信号的稳定传播。 Further, there is a problem: In recent years, a so-called connector using lead-free material, such as damage to the material hinders stable propagation time of the signal.

为了解决上述问题,可以考虑以无线方式向/从状态检测传感器发送/接收信号。 To solve the above problem can be considered from the state detection sensor to send / wirelessly / reception signals. 然而,需要一般的无线通信设备内部具有电池来供电。 However, the internal wireless communication device having a general need for a battery powered. 由此, 存在如下问题:更换电池时需要相当大的劳动,从而该原理的实现是困 Accordingly, there is a problem: requires considerable labor time of replacing the battery, thereby realizing this principle is trapped

难的。 hard. 此外,如JP 2004-32052A中公开的,在使用不需要电池的RFID (射频识别)的系统中,将用于吸收来自RFID读取器的电磁波的通信阻隔天线带到RFID芯片附近或带离RFID芯片,从而使得RFID芯片无法工作。 Further, as disclosed in JP 2004-32052A, the battery does not require the use of RFID (radio frequency identification) system, communication barrier for absorbing electromagnetic wave from the antenna of the RFID reader to the RFID chip or away from the vicinity of RFID chip, such that the RFID chip does not work. 该系统利用了如下原理:当通信阻隔天线被移开时,因为电磁波到达RFID 芯片,所以RFID芯片进行工作,而当通信阻隔天线被带到附近时,因为电磁波被阻隔天线吸收,所以RFID芯片不进行工作。 The system uses the following principle: when a communication antenna is removed the barrier, because the electromagnetic waves reach the RFID chip, the RFID chip to operate, when the communication antenna is brought close to the barrier, since the electromagnetic wave is absorbed by the barrier antennas, the RFID chip is not working. 然而,为了明确地改变信号,需要大的空间来将通信阻隔天线带到其附近和将其移开。 However, in order to clearly changing signal, it requires a large space for the antenna to the vicinity of the communication barrier and move it away. 通过这种方式,JP 2004-32052A中公开的技术存在如下问题:例如,其不能用作在小空间内设置的状态检测传感器,如纸张通过传感器。 In this way there is a problem, in the technique disclosed in JP 2004-32052A: e.g., it can not be used in the state detection sensor disposed in a small space, such as a paper sheet by the sensor. 此外, 非专利文献1和2中公开的无线传感器存在的问题是它们具有专用于SAW 器件的结构,该SAW器件与半导体形成的RFID芯片(参见非专利文献1 的图11,以及非专利文献2的图6)相比,其缺点在于要处理大量ID。 Further, Non-Patent Documents 1 and 2 disclose the presence of wireless sensors is that they have a specific structure of the SAW device, (see Non-Patent Document RFID chip of the semiconductor forming the SAW device 11 1, and Non-Patent Document 2 FIG. 6) as compared to the disadvantage that a large number of process ID. 此外,当使用非专利文献2中公开的接触开关时,存在如下问题:根据SAW反射器的布局,无用噪声由于振动的出现而产生。 Further, when in Non-Patent Document 2 discloses a touch switch, there is a problem: a layout SAW reflectors, unwanted vibrations occur due to the noise generated. 此外,当用作可变阻抗的传感器被布置在非专利文献2中公开的反射器上时,需要测量来自反射器的信号的幅度变化。 Further, when used as a variable impedance sensor is arranged on the Non-Patent Document 2 discloses a reflector, the amplitude of the signal to be measured from the reflector changes. 因此,出现了如何将该技术应用于信号强度受限的频段的问题。 Thus, the problem of how to apply this technique to the band limited signal strength.

发明内容 SUMMARY

本发明是考虑到以上情况而作出的,其提供了一种无需进行复杂布线即可使用的状态检测传感器。 The present invention has been made in view of the above, there is provided a state detecting sensor which does not require complicated wiring can be used. 此外,本发明还提供了一种低噪声状态检测传感器,其无源地进行工作并且无需诸如电池更换的麻烦工作。 Further, the present invention also provides a low-noise state detection sensor operates passively and without troublesome works such as battery replacement.

为了解决上述问题,本发明提供了一种无线应答装置,其包括:天 To solve the above problems, the present invention provides a wireless response device, comprising: Days

线,其接收询问信号;识别信号发生单元,其以不耗电的方式工作并且产生针对天线所接收的询问信号的应答信号;以及阻抗变换单元,其设置在天线与识别信号发生单元之间,并且其中阻抗响应于环境的状态而.改变。 Line, which receives an interrogation signal; identification signal generating unit, which is not a power generating mode and the work for the interrogation signal a response signal received by the antenna; and an impedance conversion unit provided between the unit and the identification signal occurs in the antenna, and wherein impedance response to the state of the environment. change.

所述无线应答装置以无线方式输出应答信号,该应答信号指示了环境的状态。 The wireless transponder response signal outputting means in a wireless manner, the response signal indicative of the state of the environment. 因为当建立应答装置时无需构造信号线,所以可以减少建立和维护应答装置时的工时。 Because no configuration setup response signal line when the device can be reduced and maintenance time when establishing the response apparatus.

附图说明 BRIEF DESCRIPTION

基于以下附图对本发明的实施例进行具体说明,在附图中: 图1是示出根据本发明的状态检测系统的功能结构的框图; 图2示出了根据第一实施例的状态检测系统1的结构; 图3示出了根据第二实施例的状态检测系统2的结构; 图4示出了根据第三实施例的状态检测系统3的结构; 图5示出了根据第四实施例的状态检测系统4的结构; 图6示出了根据第五实施例的状态检测系统5的结构; ; FIG. 2 shows a state detecting system according to the first embodiment of FIG. 1 is a block diagram showing a functional configuration of the status detection system according to the invention: the following drawings, embodiments of the present invention will be specifically described based on the drawings 1 structure; FIG. 3 shows a structure of a detecting system 2 of the second embodiment; FIG. 4 shows a structure of a detecting system 3 of the third embodiment; FIG. 5 shows a fourth embodiment configuration of the status detection system 4; FIG. 6 shows a structure of a detecting system 5 of the fifth embodiment;

图7a和7b示出了状态检测系统5所使用的信号; 7a and 7b illustrate five signal detecting system used;

图8示出了根据第六实施例的图像形成装置6的结构;以及 FIG 8 shows the structure of an image forming apparatus according to a sixth embodiment of the embodiment 6; and

图9是示出图像形成装置6的操作的流程图。 6 FIG. 9 is a flowchart of the operation of an image forming apparatus.

具体实施方式 Detailed ways

下面将参照附图说明本发明的实施例。 It will now be described with reference to the accompanying drawings of embodiments of the present invention. 1、基本结构 1, the basic structure

图1是示出根据本发明的状态检测系统的基本结构的框图。 FIG. 1 is a block diagram of the basic configuration of the detecting system according to the invention. 根据本 According to the

发明的状态检测系统包括收发器10和作为无线应答装置的状态检测传感器20。 Detecting system of the invention includes a transceiver 10 and a state detection sensor 20 as a wireless transponder device. 收发器10将询问信号经由天线11发送到状态检测传感器20。 The transceiver 10 transmits an interrogation signal to the state detection sensor 20 via the antenna 11. 此夕卜,收发器10接收经由天线11从状态检测传感器20发送来的应答信号。 Bu this evening, the transceiver 10 receives the response signal transmitted from the status detection sensor 20 via the antenna 11 to the. 状态检测传感器20是无需电力即可工作的传感器。 State detection sensor 20 is a sensor to work without electricity. 换言之,状态检测传感器20是无源传感器。 In other words, the state detection sensor 20 is a passive sensor. 阻抗变换部分22将诸如外力和光的环境状态的变化变换成阻抗变化。 The impedance transforming section 22, such as a change in ambient conditions and external light is converted into a change in impedance. 当阻抗变换部分22的阻抗由于环境状态而降低, 从而天线21和识别信号发生电路23处于阻抗匹配状态时,识别信号发生部分23响应于来自收发器10的询问信号生成应答信号。 When the impedance of the impedance conversion portion 22 is reduced due to environmental conditions, so that the antenna 21 and the identification signal generating circuit 23 in the impedance matching state when the identification signal generating portion 23 generates a response signal in response to an interrogation signal from the transceiver 10. 状态检测传感器20经由天线21输出由识别信号发生部分23产生的应答信号。 State detection sensor 20 response signal generating section 23 via the output antenna 21 by the occurrence of the identification signal. 另一方面,当阻抗变换部分22的阻抗由于环境的状态而增加,从而天线21 和识别信号发生部分23处于阻抗不匹配状态时,状态检测传感器20不发送针对来自收发器10的询问信号的应答信号。 On the other hand, when the impedance of the impedance conversion portion 22 is increased due to the state of the environment, so that the antenna 21 and the identification signal generating portion 23 when the impedance mismatch in the state, the state detection sensor 20 does not transmit the response to an interrogation signal from the transceiver 10 signal. 通过这种方式,状态检测传感器20输出响应于其环境的状态的应答信号。 In this manner, the output of state detection sensor 20 in response to its state of the response signal environment. 2、第一实施例 2, the first embodiment

图2示出了根据本发明第一实施例的状态检测系统1的结构。 FIG 2 shows a structure of a detecting system of the first embodiment of the present invention. 在状态检测系统1中,可变电感器222用作阻抗变换部分22, SAW-ID标签230 用作识别信号发生部分23。 In the detecting system 1, the variable inductor 222 is used as the impedance transforming part 22, SAW-ID tag 230 as an identification signal generating portion 23. 当施加外力时,可变电感器222使天线21的阻抗与SAW-ID标签230的阻抗相匹配(下面将给出详细说明)。 When external force is applied, the impedance of the variable inductor 222 and the SAW-ID tag antenna 21 matches the impedance 230 (a detailed description will be given below). 在没有施加外力的情况下,天线21与SAW-ID标签230是阻抗匹配的。 In the case where no external force is applied to the antenna 21 and the SAW-ID tag 230 are impedance matched. SAW-ID 标签230包括用于激发表面声波的IDT (叉指换能器,梳状电极)231, 以及反射该表面声波的SAW反射器232。 SAW-ID tag 230 includes means for exciting surface acoustic waves IDT (interdigital transducer, the comb electrode) 231, and reflected by the surface acoustic waves SAW reflector 232. IDT 231和SAW反射器232形成在压电基板233上。 SAW IDT 231 and the reflector 232 is formed on the piezoelectric substrate 233. 在本实施例中,SAW-ID标签230例如被设计为使得其对1 GHz频率的信号进行应答。 In the present embodiment, SAW-ID tag 230, for example, is designed such that it responds to a signal on the frequency of 1 GHz.

作为压电基板233的材料,例如可以使用下述材料:(1)氧化物, 如Si02、 SrTi03、 BaTi03、 BaZr03、 LaA103、 Zr02、 Y2038%-Zr02、 MgO、 MgAl204、 LiNb03、 LiTa03、 Al2。3或ZnO; (2)所谓的旭03钙钛矿材料,如BaTi03、 PbTi03、 PbhLa,(ZryTi卜U3 (根据x和y的值,为所谓的PZT、 PLT、 PLZT); (3)四角形(tetragonal)、菱形或类立方形材料,如,3; (4) 类钛铁矿结构的铁电材料,以LiNb(kLiTa03等为代表;(5)钩青铜型结构材料,如Sr為—x歸6和PbJBa卜xNbA; (6)松弛剂(rel隨)铁磁材料,如BiJH Pb2KNb5015、 K3Li2Nb50ls、 Pb(ZnI/3Nb2/3)03、 Pb(Mg1/3Nb2/3)03、 Pb(Ni1/3Nb2/3)03、 Pb(Inl/3Nb2/3)03、 Pb (Sc1/3Nb2/3) 03 、 Pb (Sc1/3Na2/3) 03以及Pb(Cd1/3Nb2/3)03; (7)高分子材料,如聚偏二氟乙烯(polyvinylidene fluoride PVDF); (8)由上述铁电材料的置换派生物(substituted derivative)中选出的合成材料。 As a material of the piezoelectric substrate 233, for example, using the following materials: (1) an oxide, such as Si02, SrTi03, BaTi03, BaZr03, LaA103, Zr02, Y2038% -Zr02, MgO, MgAl204, LiNb03, LiTa03, Al2.3 or ZnO; (2) 03 Asahi called perovskite materials, such as BaTi03, PbTi03, PbhLa, (ZryTi Bu U3 (according to the values ​​of x and y, so-called PZT, PLT, PLZT); (3) rectangular (tetragonal ), diamond, or cubic-based materials, such as, 3; (4 ferroelectric material) class ilmenite structure to LiNb (kLiTa03 typified; (5) hook-bronze type structure materials, such as Sr normalized 6 -x and PbJBa Bu xNbA; (6) relaxation agent (with the rel) of ferromagnetic material, such as BiJH Pb2KNb5015, K3Li2Nb50ls, Pb (ZnI / 3Nb2 / 3) 03, Pb (Mg1 / 3Nb2 / 3) 03, Pb (Ni1 / 3Nb2 / 3) 03, Pb (Inl / 3Nb2 / 3) 03, Pb (Sc1 / 3Nb2 / 3) 03, Pb (Sc1 / 3Na2 / 3) 03, and Pb (Cd1 / 3Nb2 / 3) 03; (7) a polymer material , such as polyvinylidene fluoride (polyvinylidene fluoride PVDF); (8) synthetic material selected from the substituted derivatives of the ferroelectric material (substituted derivative) in.

此外,作为IDT231的材料,可以使用如下材料:单体金属,如Ti、 Cr、 Cu、 W、 Ni、 Ta、 Ga、 In、 Al、 PB、 Pt、 Au和Ag;或者合金,如Ti-Al、 Al-Cn、 Ti-N、 Ni-Cr。 Further, as the material IDT231, the following can be used: a single metal, such as Ti, Cr, Cu, W, Ni, Ta, Ga, In, Al, PB, Pt, Au and of Ag; or an alloy, such as Ti-Al , Al-Cn, Ti-N, Ni-Cr. IDT 231可以是单层的,或者是两层或更多层的多层结构。 IDT 231 may be a single layer or a multilayer structure of two or more layers. 一层包括一种金属或合金。 A layer comprising a metal or alloy. 典型地,可以将Au、 Ti、 W、 Al和Cu用作IDT231的材料。 Typically, Au, Ti, W, Al and Cu may be used as the material IDT231. 此外,该金属层的膜厚可大于等于l rnn并小于10ume The thickness of the metal layer may be smaller than and greater than or equal l rnn 10ume

在可变电感器222中,电感由于铁磁棒2222被插入空芯线圈(air core coil) 2221中而变化。 In the variable inductor 222, inductor since ferromagnetic rod 2222 is inserted into the air core coil (air core coil) 2221 is changed. 导轨2223设置在空芯线圈2221的附近。 Rail 2223 provided in the vicinity of the air core coil 2221. 导轨2223固定于外壳(图中未示出)等上。 Rail 2223 fixed to the housing (not shown) or the like. 导轨2223例如是圆柱形部件, 其内径大于铁磁棒2222的外径。 A cylindrical guide member 2223, for example, an inner diameter larger than the outer diameter of the ferromagnetic rod 2222. 铁磁棒2222可在导轨22223内滑动。 Ferromagnetic rod 2222 is slidable within the guide rail 22223. 在铁磁棒2222附近设置有杠杆2226。 Set near the ferromagnetic rod 2222 lever-2226. 铁磁棒2222在与杠杆2226的作用点对应的位置处与杠杆2226接触。 Ferromagnetic rod 2222 at a position in contact with the lever and the lever action point 2226 corresponding to 2226. 当在与杠杆2226的施力点对应的位置处施加外力时,铁磁棒2222沿着导轨2223移动,并且被插入空心线圈2221中。 When an external force is applied to the lever at a position corresponding to the point of application of 2226, the ferromagnetic rod 2222 moves along rails 2223, and 2221 are inserted into the hollow coil. 在导轨2223与铁磁棒2222的突出部分2224之间设置了弹簧2225。 Ferromagnetic rod 2223 with the guide rail is provided a spring 2225 between the protrusion portion 2222 of 2224. 由于弹簧2225的力,在没有施加外力的状态下,铁磁棒2222以未插入状态置于空芯线圈2221的外部。 Since the force of the spring 2225, in a state where no external force is applied, the ferromagnetic rod 2222 is not inserted into the air core coil 2221 disposed state of the external.

空芯线圈2221例如是直径2 mm、 1匪(coil turn)并且长度lmm 的线圈。 Air core coil 2221 such as a coil diameter 2 mm, 1 bandit (coil turn) and the length of lmm. 在这种情况下,处于未插入状态的空芯线圈2221的自感大约为4 nH。 In this case, in the non-insertion state of the self-inductance of the air core coil 2221 is approximately 4 nH. 在天线21与SAW-ID标签230之间串联插入电容器2227,以获得该状态下的SAW-ID标签230和天线21的阻抗匹配。 Between the antenna 21 and the SAW-ID tag 230 inserted in series with capacitor 2227, to obtain impedance matching SAW-ID tag 230 and in this state the antenna 21. 例如,当使用lGHz 信号时,当使用电容为6.3pF的电容器2227时,形成了中心频率为lGHz 的带通滤波器。 For example, when using lGHz signal, when a capacitance of 6.3pF capacitor 2227 form a center frequency of the bandpass filter lGHz. 也就是,在没有插入铁磁棒2222的状态下,SAW-ID标签230与天线21的阻抗匹配。 That is, in the ferromagnetic rod 2222 is not inserted state, SAW-ID tag 230 and the antenna 21 impedance.

另一方面,当通过施加外力将铁磁棒2222插入空芯线圈2221中时, 空芯线圈的自感改变。 On the other hand, when the external force is applied by the ferromagnetic rod 2222 is inserted into the air core coil 2221 when the self-inductance of the air core coil changes. 例如,当插入了由磁导率为4000 H/m的铁氧体材料(ferrite material)构成的铁磁棒时,空芯线圈2221的自感变得不小于10uH。 For example, when inserting a permeability rate of 4000 H / m in the ferrite material (ferrite material) made of ferromagnetic rod, the self-inductance of the air core coil 2221 becomes not less than 10uH. 因而,中断了天线21与SAW-ID标签230的阻抗匹配。 Thus, the interrupt with the SAW-ID tag 230 of the antenna 21 impedance. 具体地,此时,由线圈和电容构成的带通滤波器的S参数Sa不大于一50 dB。 Specifically, at this time, the band pass filter consisting of S parameters Sa coil and capacitor is no greater than a 50 dB. 这意味着天线21接收到的询问信号的能量几乎都没到达SAW-ID标签230。 This means that the energy of the interrogation signal received by the antenna 21 almost never reaches the SAW-ID tag 230. 这也意味着来自SAW-ID标签230的应答信号几乎都没到达天线21。 This also means that a response signal SAW-ID tag 230 from almost never reaches the antenna 21. 收发器10对于与IDT对的数目(在图2所示的示例中,IDT是1.5 对)相同数目的周期,以突发形式输出1 GHz频率的询问信号。 Transceiver 10 for the number of IDT pairs (in the example shown in FIG. 2, for 1.5 IDT) the same number of cycles, the output of the interrogation signal frequency of 1 GHz in bursts. 该周期数也可以不是与IDT对的数目相同的周期数,如IDT对的数目+1。 The number of the same number of cycles of the period of the IDT need not be, as the number of IDT pairs + 1'd. 此时, 当未将外力施加到杠杆2226,并且SAW-ID标签230和天线21阻抗匹配时,状态检测传感器20从天线21输出应答信号。 At this time, when no external force is applied to the lever 2226, and the SAW-ID tag 230 when the antenna 21 and the impedance matching state detection sensor 20 outputs a response signal from an antenna 21. 也就是,将天线21接 That is, the antenna will pick 21

'收的询问信号提供给SAW-ID标签230。 'Received interrogation signal to the SAW-ID tag 230. 通过所提供的询问信号,在IDT231 中激发出表面声波。 Provided by the interrogation signal, a surface acoustic wave excited in the IDT231. 所激发的表面声波通过压电基板233传播(在压电基板233中,所激发的表面声波传播的区域称为"SAW波导")。 A surface acoustic wave excited by 233-propagation piezoelectric substrate (piezoelectric substrate 233, a surface acoustic wave excited region referred to as the dissemination "the SAW waveguide"). SAW反射器232对该表面声波进行反射。 SAW reflector 232 for reflecting the surface acoustic waves. IDT 231将被反射的表面声波变换成电信号。 IDT 231 in the surface acoustic wave is converted into an electrical signal reflection. 将该电信号作为应答信号从天线21输出。 The electric signal as a response signal outputted from the antenna 21. 此处,当表面声波经过压 Here, when the surface acoustic wave through the pressure

;电基板233传播时,产生了由压电基板233的材料和传播路径长度确定的延迟。 ; Electrical substrate 233 during propagation, resulting in a delay determined by the propagation path length of the piezoelectric material and the substrate 233. 也就是,应答信号具有相对于输入信号的特定延时。 That is, the response signal having a specific time delay relative to the input signal. 通过对SAW-ID标签230中的SAW反射器232的布局(即,SAW波导的长度)、压电基板233的材料等进行设计,可以将该延时设计为预定值。 By layout SAW-ID tag 230 in the SAW reflector 232 (i.e., the length of the SAW waveguide), the piezoelectric substrate 233 material design, can be designed to delay a predetermined value. 通过这种方式,利用应答信号延时,可以将该SAW-ID标签230与另一SAW-ID标 In this way, with the response signal delay can be the SAW-ID tag 230 and another SAW-ID subscript

>签区分开。 > Sign separate area.

另一方面,当由于将外力施加到杠杆2226使铁磁棒2222插入空芯线圈2221中,从而使天线21和SAW-ID标签变成阻抗不匹配时,天线21 所接收的询问信号没有被提供给SAW-ID标签230。 On the other hand, since when the external force is applied to the lever 2226 that the ferromagnetic rod 2222 is inserted into the air core coil 2221, so that the antenna 21 and the SAW-ID tag becomes impedance mismatch, the antenna 21 receives the interrogation signal is not provided to the SAW-ID tag 230. 因此,状态检测传感器20没有输出应答信号。 Thus, the state detection sensor 20 does not output the response signal. 通过这种方式,状态检测传感器20输出的应;答信号根据外力的有无而不同。 In this manner, the state detection sensor 20 should output; A signal according to presence or absence of an external force varies. 也就是,收发器10可以根据针对询问信号的应答信号的有无,检测对状态检测传感器20的外力的有无。 That is, the transceiver 10 may be based on whether the response signal for the interrogation signal, detects the presence or absence of external condition detection sensor 20.

状态检测系统1还可以包括多个状态检测传感器20,每个都具有不同的延时。 State detecting system 1 may also include a plurality of state detection sensors 20, each having a different delay. 在这种情况下,收发器10可以根据应答信号的延时,从多个状态检测传感器20中指定被施加了外力的状态检测传感器20。 In this case, the transceiver 10 may be based on the delay of the response signal, from the plurality of designated state detection sensor 20 of the external force is applied state detection sensor 20. 利用上述的根据本实施例的状态检测系统1,可以通过无线方式进 With the above state detecting system according to Example 1 of the present embodiment, the intake can wirelessly

行外力的检测。 Line detection of external forces. 此外,状态检测传感器20无源地进行工作。 In addition, the state detection sensor 20 operates passively. 因此,无需复杂的布线来安装状态检测传感器20,从而可以减少用于安装和维护的工时数。 Thus, no need to install complex wiring state detection sensor 20, thereby reducing the number of steps for installation and maintenance. 此外,状态检测传感器20可以安装在难于布线的位置。 In addition, the state detection sensor 20 may be mounted on the wiring position is difficult. 此外, 因为状态检测传感器20以无线方式输出信号,因而无需连接传感器和信号线的连接器。 Further, since the state detection sensor 20 outputs signals in a wireless manner, thus eliminating the need and the sensor connection signal line. 因此,可以抑制由于较差的连接器连接而出现的不良操作。 Thus, it is possible to suppress failure due to poor operation of the connector appears.

此外,通过适当地设计铁磁棒2222的磁导率、空芯线圈2221的电感以及将铁磁棒2222插入空芯线圈2221的方法,不仅可以兼容二值ON/OFF (开/关),还能兼容多值、可变的量。 Further, by appropriately designing permeability ferromagnetic rod 2222, the air core coil 2221 and the inductance of the air core coil 2222 ferromagnetic rod 2221 is inserted into the method, not only compatible binary ON / OFF (open / close), further compatible with multi-value variable amount. 当测量多值量时,可以根据收发器10所接收的应答信号的强度测量该多值量。 When the measured amount of multi-value, the amount of multi-value can be measured according to the strength of the response signal received by the transceiver 10.

在以上说明中,说明了如下实施例,其中通过施加到杠杆2226的外力将铁磁棒2222插入空芯线圈2221中,但是可变电感器2222的结构并不限于此。 In the above description, the following examples in which an external force is applied to the lever 2226 of the ferromagnetic rod 2222 is inserted into the air core coil 2221, but the structure of a variable inductor 2222 is not limited thereto. 例如,还可以为以下结构,其中在没有施加外力的状态下, 铁磁棒2222由于弹簧的力而插入空芯线圈2221中,而通过施加外力使铁磁棒2222退出空芯线圈2221。 For example, a structure can also, in a state where no external force is applied, the ferromagnetic rod 2222 due to the force of the spring 2221 is inserted into the air core coil, and by applying an external force to exit the ferromagnetic rod 2222 2221 air-core coil. 此外,空芯线圈2221的自感的值、铁磁棒2222的磁导率的值、电容器2227的电容值以及信号频率值仅仅是以示例的方式给出的,因而这些值并不限于该实施例中的值。 Further, the value, the permeability of the ferromagnetic rod 2222 of the self-inductance of the air core coil 2221, and the capacitance value of the signal frequency value of the capacitor 2227 are given by way of illustration only, and thus these values ​​are not limited to this embodiment values ​​in the examples. 此外,将外力传送到铁磁棒2222的方法不限于使用杠杆。 Further, the external force is transferred to the ferromagnetic rod 2222 is not limited to the use of leverage. 例如,还可以为以下结构,其中经由连接到铁磁棒2222的臂来传送外力。 For example, a structure may also be, connected to the arm via which the ferromagnetic rod 2222 to transmit the external force.

3、第二实施例 3, the second embodiment

图3示出了根据本发明第二实施例的状态检测系统2的结构。 FIG 3 shows a structure of a detecting system of the second embodiment of the present invention is 2. 状态检测系统2与根据第一实施例的状态检测系统1的不同之处在于检测传感器20除包括SAW-ID标签230之外还包括另一SAW-ID标签240。 The detecting system 2 and the detecting system is different from the first embodiment 1 except that the detection sensor 20 comprises a SAW-ID tag 230 further comprises a further addition SAW-ID tag 240. SAW-ID 标签240的结构基本上与SAW-ID标签230相同,g卩,它包括IDT 241、 SAW反射器242以及压电基板243。 Substantially the same configuration as SAW-ID tag 240 and the SAW-ID tag 230, g Jie, comprising IDT 241, SAW reflector 242, and 243 of the piezoelectric substrate. 然而,SAW-ID标签230和SAW-ID标签240被设计为具有不同的延时。 However, SAW-ID tag 230 and the SAW-ID tag 240 is designed to have different delay.

此外,在状态检测系统2中,使用可变电感器221代替可变电感器222。 Further, in the detecting system 2, using a variable inductor 221 instead of the variable inductor 222. 可变电感器221在没有施加外力时使天线21的阻抗与SAW-ID标签230的阻抗相匹配,并且在施加了外力时使天线21的阻抗与SAW-ID标签240的阻抗相匹配。 The impedance of the antenna with the impedance of SAW-ID tag 240 when 21 matches the impedance of the variable inductor 221 and the SAW-ID tag antenna 21 when no external force is applied to the impedance match 230, and an external force is applied. 下面将详细说明。 Detailed below.

可变传感器221包括空芯线圈2211、空芯线圈2219以及铁磁棒2212。 Sensor 221 comprises a variable air-core coil 2211, the air core coil 2219 and the ferromagnetic rod 2212. 空芯线圈2211和2219的电感由于铁磁棒2212插入这些空芯线圈内而变化。 Air core coil inductor 2211 and 2219 due to the ferromagnetic rod 2212 is inserted into the air core coil varies. 在空芯线圈2211与2219之间设置有导轨2213。 Between the air core coil 2219 is provided with a guide rail 2211 and 2213. 导轨2213例如是圆柱体部件,其内径大于铁磁棒2212的外径。 For example, a cylindrical guide member 2213 having an internal diameter greater than the outer diameter of the ferromagnetic rod 2212. 铁磁棒2212可在导轨2213 内滑动。 Ferromagnetic rod 2212 is slidable within the guide rail 2213. 用于将外力传送到铁磁棒2212的臂2216与铁磁棒2212相连接。 For transmitting an external force to the ferromagnetic rod 2212 of the arm 2216 is connected to the ferromagnetic rod 2212. 在臂2216与导轨2213之间设置有弹簧2215。 Between the arm 2216 and the guide rail 2213 is provided with a spring 2215. 在没有将外力施加到臂2216 的状态下,铁磁棒2212处于被弹簧2215的外力插入空芯线圈2211内的 In the state in which no external force is applied to the arm 2216, the ferromagnetic rod 2212 is inserted into the spring 2215 force the air core coil 2211

i状态。 state i. 另一方面,当将外力施加到臂2216时,铁磁棒2212在图3中向下移动,从而其从空芯线圈2211中退出并被插入空芯线圈2219。 On the other hand, when the external force is applied to the arm 2216, the ferromagnetic rod 2212 is moved downward in FIG. 3, and is inserted so that it exits the air core coil 2219 from the air core coil 2211. 也就是, 在可变电感221中,在没有对臂2216施加外力的状态下,铁磁棒2212 被插入空芯线圈2211,当对臂2216施加外力时,铁磁棒从空芯线圈2211 中退出并被插入空芯线圈2219。 That is, in the variable inductor 221, in a state in which no external force is applied to the arm 2216, ferromagnetic rod 2212 is inserted into the air core coil 2211, when external force is applied to the arm 2216, ferromagnetic rod from the air core coil 2211 exit and inserted into the air core coil 2219.

; 在本实施例中,当空芯线圈2211和2219是没有插入铁磁棒2212的 ; In the present embodiment, when the air core coil 2211 and the ferromagnetic rod 2219 is not inserted into the 2212

空芯线圈时,它们是自感为4 nH的线圈。 When the air core coil, which is self-inductance of 4 nH coil. 铁磁棒2212是由磁导率为4000 H/m的铁氧体材料构成的。 Ferromagnetic rod 2212 by a permeability of 4000 H / m ferrite material. 当插入铁磁棒2212时,空芯线圈2211和2219 的电感变为10uH。 When the ferromagnetic rod 2212 is inserted, the air core coil inductor 2211 and 2219 becomes 10uH. 电感2217和2218的电容为6.3pF。 Capacitor 2217 and inductor 2218 is 6.3pF. 通过使用具有这些参数的空芯线圈2211和电容2217,形成了中心频率为lGHz的带通滤 By using the air core coil 2211 and a capacitor 2217 having these parameters, forming a center frequency of the band-pass filter lGHz

)波器。 ) Wave. 当使用lGHz信号时,天线21和SAW-ID标签240在空芯线圈2211 为空芯时是阻抗匹配的。 When using lGHz signal, the antenna 21 and the SAW-ID tag 240 in the air core coil 2211 when the impedance matching is an air core. 当将铁磁棒2212插入空芯线圈2211中时,天线21和SAW-ID标签240变为阻抗不匹配。 When the ferromagnetic rod 2212 is inserted into the air core coil 2211, the antenna 21 and the SAW-ID tag 240 becomes impedance mismatch. 这对于空芯线圈2219和电容2218也是适用的。 This air core coil 2219 and the capacitor 2218 are also suitable.

当收发器10在没有外力施加到臂2216的状态下发送询问信号时, When the interrogation signal is transmitted in the state where no external force is the transceiver 10 is applied to the arm 2216,

;天线21所接收的询问信号被提供给SAW-ID标签230。 ; Received by the antenna 21 is supplied to the interrogation signal SAW-ID tag 230. 该询问信号在IDT 231中被变换成表面声波。 The interrogation signal is converted into a surface acoustic wave in the IDT 231. 该表面声波被SAW反射器232反射,并且在IDT 231中被变换成电信号。 The surface acoustic wave is reflected SAW reflector 232, and is converted into an electric signal in the IDT 231. 将经过变换的电信号作为应答信号从天线21输出。 After converting the electrical signal as a response signal outputted from the antenna 21. 该应答信号是反映SAW-ID标签230的延时的信号。 The response signal is a reflection of the signal delay of the SAW-ID tag 230. 此时,没有从SAW-ID标签240输出应答信号。 In this case, there is no response signal 240 output from the SAW-ID tag. 另一方面,当收发器10在有外力施加到臂2216的状态下发送询问信号时,天线21所接收的询问信号被提供给SAW-ID标签240。 On the other hand, when the transmitted interrogation signal the transceiver 10 in the state where external force to the arm 2216, the interrogation signal received by the antenna 21 is supplied to the SAW-ID tag 240. SAW-ID 标签240输出应答信号。 SAW-ID tag 240 outputs a response signal. 该应答信号是反映SAW-ID标签240的延时的信号。 The response signal is a reflection of the signal delay of the SAW-ID tag 240. 此时,应答信号没有从SAW-ID标签230输出。 In this case, the response signal 230 is not output from the SAW-ID tag.

通过以上方式,收发器10可以根据来自状态检测传感器20的应答信号来检测外力的有无。 In the above manner, the transceiver 10 may detect the presence or absence of the external force based on the response signal from the state detecting sensor 20. 通过以这种方式设置多个SAW-ID标签,在施加了外力时和没有施加外力时,均检测到应答信号中的某一个。 By providing a plurality of SAW-ID tags in this manner, when an external force is applied and when no external force is applied, the response signal was detected in one. 因此,状态检测系统2适于在难以鉴别无应答状态(其中没有应答信号)的噪声环境下进行状态检测。 Thus, the state of the detection system 2 is adapted to detect the state of at unresponsiveness is difficult to identify (in which no response signal) noise environment. . .

状态检测系统2中包括的SAW-ID标签的数目并不限于两个;还可以为以下结构,其中状态检测系统2具有三个或更多个SA¥-ID标签。 The number of SAW-ID tag includes a status detection system 2 is not limited to two; may also be a structure in which the detecting system 2 having three or more SA ¥ -ID label. 此外, 可以将这些SAW-ID标签并入单个芯片中。 In addition, the SAW-ID tag may be incorporated into a single chip. 也就是,可以在单个压电基板上形成多个IDT和SAW反射器。 I.e., may be formed of a plurality of SAW IDT and reflectors on the single piezoelectric substrate. 通过使用以这种方式并入单个芯片中的SAW-ID标签,可以提高制造和装配处理的效率。 By using such a SAW-ID tag is incorporated in a single chip, can improve the efficiency of the manufacturing and assembly process.

4、第三实施例 4, the third embodiment

图4示出了根据本发明第三实施例的状态检测系统3的结构。 FIG. 4 shows a structure of a detecting system of the third embodiment of the present invention is 3. 状态检测系统3与根据第一实施例的状态检测系统1的不同之处在于状态检测系统3使用可变电容器223代替了可变电感器222。 The detecting system and detecting system 3 of the first embodiment is different from the embodiment 1 in that the status detection system 3 using the variable capacitor 223 in place of the variable inductor 222. 可变电容器223包括平行板2231、连接到平行板2231之一的芯棒2232,以及用于将外力传送到芯棒2232的臂2236。 The variable capacitor 223 includes a parallel plate 2231, a mandrel connected to one of the parallel plates 2231 2232, and means for transmitting the external force to the arm 2232 of mandrel 2236. 在平行板2231的附近沿着芯棒2232设置有导轨2233。 In the vicinity of the parallel plates 2231 2232 2233 provided with a guide rail along the mandrel. 导轨2233固定于外壳等(图中未示出)。 Rails fixed to the housing 2233 and the like (not shown). 导轨2233例如是圆柱体部件,其内径大于芯棒2232的外径。 For example, a cylindrical guide member 2233 having an internal diameter greater than the outer diameter of the mandrel 2232. 芯棒2232可在导轨2233内滑动。 The mandrel is slidable within the guide rail 2232 2233. 弹簧2235设置在导轨2233与芯棒2232的突出部分2234之间。 Spring 2235 is disposed between the guide projecting portion 2232 of mandrel 2233 and 2234. 由于弹簧2235的力,在没有施加外力的状态下,平行板2231之间的距离最短。 Since the force of the spring 2235, in a state where no external force is applied, the distance between the parallel plates 2231 shortest.

为了使天线21的阻抗与SAW-ID标签230的阻抗匹配,与电容平行地插入电感器2237。 In order to make the antenna impedance SAW-ID tag 21 of the impedance 230 and the capacitor is inserted in parallel to an inductor 2237. 电感器2237的一端接地。 One end of the inductor 2237 grounded. 此外,将平行板2231中的连接到芯棒2232的板接地。 Further, the rod 2232 connected to the grounding plate 2231 in a parallel plate.

平行板2231例如在这两个板之间的距离最短的状态(称为"接近状态")下,具有5 nF的电容,而在这两个板之间的距离最大的状态(称为"分离状态")下,具有Ol pF的电容。 A parallel plate 2231, for example, the shortest distance between the two plates state (referred to as "close state"), having a capacitance of 5 nF, while the largest distance between two plates in a state (referred to as "isolated state "), having Ol pF capacitance. 此外,电感器2237是电感为2uH (微亨)的线圈。 Further, the inductor 2237 is the inductor 2UH (microhenries) of the coil. 当使用l GHz信号时,在接近状态下从天线21到SAW-ID标签230的信号电平低于一50dB。 When using l GHz signal 21 to the close state in the SAW-ID tag 230 is lower than the signal level from antenna a 50dB. 由此,利用处于接近状态(没有施加外力的状态)的平行板2231,来自天线21的信号没有被施加给SAW-ID标签230。 Thus, in using the proximity state (no external force is applied state) of the parallel plates 2231, the signal from the antenna 21 is not applied to the SAW-ID tag 230. 在该状态下,即使从收发器10发出了询问信号,SAW-ID 标签230也不输出针对该询问信号的应答信号。 In this state, even if the interrogation signal sent from the transceiver 10, SAW-ID tag 230 does not output a response signal for the interrogation signal.

另一方面,当平行板2231由于施加了外力而处于分离状态时,来自天线21的99%以上的信号被发送到SAW-ID标签230。 On the other hand, when the parallel plate 2231 due to the application of external force in a separated state, 99% or more signals from the antenna 21 is transmitted to the SAW-ID tag 230. 当在该状态下从收发器10发送了询问信号时,SAW-ID标签230输出针对该询问信号的应答信号。 In this state, when the interrogation signal is transmitted from the transceiver 10, SAW-ID tag 230 outputs a response signal for the interrogation signal.

利用上述根据本实施例的状态检测系统3,能够以无线方式进行外力的检测。 3, the external force can be detected in a wireless manner using the detecting system of the present embodiment. 此外,通过适当地设计平行板2231的电容以及分离/拉近平行板的方法,可以使该系统不仅与二值ON/OFF兼容,还与多值、可变量兼容。 Further, by appropriately designing the parallel plate capacitor 2231 and a separation / closer parallel plate method, so that the system can not only binary ON / OFF compatible, but also multi-valued, variables may be compatible.

在上述说明中,说明了这样的实施例,其中平行板2231被施加给臂2236的外力分离,但是可变电容器223的结构不限于此。 In the above description, it illustrates such an embodiment, a parallel plate 2231 in which an external force is applied to the separation of the arms 2236, but the structure of the variable capacitor 223 is not limited thereto. 例如,可以为以下结构,其中,在没有施加外力的状态下,平行板2231由于弹簧的力而处于分离状态,而通过施加外力,平行板2231处于接近状态。 For example, the following structure, wherein, in a state where no external force is applied, the parallel plate due to the force of the spring 2231 in a separated state, the external force is applied, the parallel plate 2231 is in proximity state. 此外, 平行板2231的电容值、电感器2237的电感值以及信号频率值仅仅是示例而已,并不限于这些值。 In addition, the capacitance value of the parallel plates 2231, and the signal value of the inductance of the inductor frequency values ​​2237 are just examples, not limited to these values.

5、第四实施例 5, the fourth embodiment

图5示出了根据本发明第四实施例的状态检测系统4的结构。 FIG. 5 shows a structure of a detecting system of the fourth embodiment of the present invention 4. 状态检测系统4与根据第一实施例的状态检测系统1的不同之处在于使用光电导管224代替可变电感器222。 4 and the detecting system 224 instead of the variable inductor according to a state detection system of the first embodiment is different from the embodiment 1 in that a photoelectric conduit 222. 光电导管224包括CdS、 CdSe、 Pbs、 InSb 等的合成半导体。 Optical conduit 224 comprises CdS, CdSe, Pbs, InSb, etc. composite semiconductor. 光电导管224是当有光入射时导电性增加的器件。 Optical conduit 224 is electrically conductive device increases when light is incident. 也就是说,当有光入射时,天线21与SAW-ID标签230之间的传送路径导通。 That is, when light is incident, guiding transmission path between the antenna 21 and the SAW-ID tag 230 on. 由此,将来自天线21的信号传送到SAW-ID标签230。 Thus, the signal from the antenna 21 is transmitted to the SAW-ID tag 230. 当在该状态下发送了来自收发器10的询问信号时,SAW-ID标签230输出对于该询问信号的应答信号。 When an interrogation signal is transmitted from the transceiver 10 in this state, SAW-ID tag 230 outputs a response signal to the interrogation signal.

另一方面,当没有光入射时,天线21与SAW-ID标签230之间的传送路径断幵。 On the other hand, when no light is incident, the transmission path between the antenna 21 and the SAW-ID tag 230 off Jian. 在这种情况下,来自天线21的信号没有被传送到SAW-ID 标签230。 In this case, the signal from the antenna 21 is not transmitted to the SAW-ID tag 230. 在该状态下,SAW-ID标签230没有输出针对询问信号的应答信号,即使从收发器10发送了询问信号,也是如此。 In this state, SAW-ID tag 230 does not output a response signal for the interrogation signal, even if the interrogation signal transmitted from the transceiver 10, as well.

利用上述根据本实施例的状态检测系统4,能够以无线方式进行外力的检测。 4, the external force can be detected in a wireless manner using the detecting system of the present embodiment. 此外,通过适当地设计光电导管224的电阻值,不仅可以兼容二值ON/OFF,还能兼容多值、可变的量。 Further, by appropriately designing the resistance value of the photoconductive cell 224 is not only compatible with the binary ON / OFF, but also is compatible with multi-value, a variable amount. 例如,当光电导管224的电阻值高时,根据需要可使用诸如放大器之类的外围电路。 For example, when the resistance value is high photoelectric catheter 224, may be used as necessary peripheral circuits such as an amplifier or the like.

在本实施例中,说明了将可变电阻器用作阻抗变换单元的情况,其中阻抗变换单元的电阻值随着外部光而变化,具体地,说明了这样的模式,其中光电导管用作可变电阻器,但是其也可以使用光电导管以外的可变电阻器。 In the present embodiment, the case where the variable resistor is used as impedance conversion means, wherein the resistance value of the impedance transformation unit varies with the external light, in particular, illustrates a mode in which as a variable photoconductive resistor, but it may also be used other than the variable resistor photoconductive. 例如,可以使用电阻值因外力而变化的电位计作为可变电阻。 For example, the resistance value is changed by an external force as a variable resistor potentiometer. 另选地,可以使用通过光或外力产生电的设备,如太阳能电池或压电元件。 Alternatively, the device may be used to generate electricity by light or an external force, such as a solar cell or a piezoelectric element.

6、第五实施例 6, the fifth embodiment

图6示出了根据本发明第五实施例的状态检测系统5的结构。 FIG 6 shows a structure of a detecting system of the fifth embodiment of the present invention is 5. 图7 示出了状态检测系统5所使用的信号。 FIG 7 shows the signal state detection system 5 is used. 状态检测系统5与根据第一实施例的状态检测系统1的不同之处在于使用SAW-ID标签250替代了SAW-ID 标签230。 The status detection system 5 and the state detection system of the first embodiment is different from the embodiment 1 lies in the use SAW-ID tag 250 replaces the SAW-ID tag 230. SAW-ID标签250包括两个IDT: IDT 251和IDT 252。 SAW-ID tag 250 comprises two IDT: IDT 251 and the IDT 252. IDT 251 和IDT 252分别连接到不同的天线211和212。 IDT 251 and the IDT 252 are connected to different antennas 211 and 212. 在本实施例中,天线211 和212中的每一个都接收询问信号并发送应答信号。 In the present embodiment, the antennas 211 and 212 receives each interrogation signal and transmits a response signal. 可变电感器222串联连接在IDT252与天线212之间。 The variable inductor 222 connected in series between the antenna 212 IDT252. 可变电感器222是阻抗变换单元,其在施加外力时使IDT 252的阻抗与天线212的阻抗匹配,而在没有施加外力时使IDT 252的阻抗与天线212的阻抗不匹配。 222 is a variable inductor impedance conversion means, IDT 252 so that the impedance of the antenna 212 when external force is applied to the impedance matching, the impedance of the IDT 252 so that when no external force is applied antenna 212 impedance mismatch. 在天线211与IDT 251 之间没有设置可变电感器。 Variable inductor is not provided between the antenna 211 and the IDT 251. 图6中省略了可变电感器222的详细结构, 这是因为该图将因此变得复杂,可变电感器222的结构与图2所示的相同。 FIG 6 is omitted the detailed structure of the variable inductor 222, because the drawing will therefore become complex, and a variable inductor 222 is the same as the structure of FIG.

当没有对可变电感器222施加外力时,状态检测传感器20的操作如下。 When no external force is applied to the variable inductor 222, operation state detection sensor 20 is as follows. 当从收发器10接收到询问信号时,利用天线212接收到的询问信号在IDT 251中激发表面声波。 Upon receiving from the transceiver 10 to the interrogation signal received by the antenna 212 to excite surface acoustic waves in the interrogation signal in the IDT 251. 所激发的表面声波经过压电基板253传播。 A surface acoustic wave excited propagate through the piezoelectric substrate 253. 经过压电基板253传播的所激发的表面声波在IDT 252中被反射,并到达IDT251。 After the surface acoustic wave excited propagation piezoelectric substrate 253 is reflected in the IDT 252, and reaches IDT251. 在IDT251中,将表面声波变换成电信号,并且经由天线211 作为响应信号S2输出(图7b)。 In IDT251, the surface acoustic wave into an electrical signal, via the antenna 211 as a response to the output signal S2 (FIG. 7b). 图7B示出了在没有对可变电感器222施加外力的状态下从状态检测传感器输出的应答信号。 7B shows a state in which no response signal in the external force is applied to the variable inductor 222 outputted from the state detection sensor. 如图7B所示,此时, 由于表面声波穿过压电基板253来回传播,所以针对询问信号S,的应答信号S2具有与压电基板253的长度(SAW波导)两倍相对应的延时。 As shown, this time, since the surface acoustic wave propagating through the piezoelectric substrate 253 back and forth, and therefore have twice the delay corresponding to the length (SAW waveguide) of the piezoelectric substrate 253 with respect to the interrogation signal a response signal S2 S, 7B, .

当对可变电感器222施加外力时,状态检测传感器20的操作如下。 When external force is applied to the variable inductor 222, operation state detection sensor 20 is as follows. 当从收发器10接收到询问信号时,利用天线211接收到的询问信号在IDT 251中激发表面声波。 Upon receiving from the transceiver 10 to the interrogation signal received by the antenna 211 to excite surface acoustic waves in the interrogation signal in the IDT 251. 所激发的表面声波穿过压电基板253传播。 A surface acoustic wave excited propagate through the piezoelectric substrate 253. 在IDT 252中,将已经穿过压电基板253传播的所激发的表面声波变换成电信号, 并经由天线212作为应答信号Si输出。 In the IDT 252, the excited surface acoustic wave has passed through the piezoelectric substrate 253 is converted into an electrical signal propagation, and as a response signal via antenna 212 outputs Si. 应答信号S,的延时与压电基板253 的长度(SAW波导)的一倍相对应(参见图7)。 The length of the response signal S, delays the piezoelectric substrate 253 (SAW waveguide) corresponds to twice (see FIG. 7). 此外,因为在IDT 252 中部分表面声波被反射,所以与没有向可变电感器222施加外力的情况相同,从天线211也输出了应答信号S2 (图7a)。 Further, since the reflected portion of the surface acoustic wave in the IDT 252, so that the same no external force is applied to the variable inductor 222, the antenna 211 is output from the response signal S2 (FIG. 7a). 图7A示出了在对可变电感器222施加了外力的状态下从状态检测传感器输出的应答信号。 7A shows a state of the response signal in the external force is applied to the variable inductor 222 outputted from the state detection sensor. 此时,除了与穿过SAW波导来回传播的表面声波相对应的应答信号S2之外, 还输出了与(单向)穿过SAW波导的表面声波相对应的应答信号S,。 In this case, in addition to the surface acoustic wave propagating through the SAW waveguide back and forth corresponding to the response signal S2, also it outputs the response signal S and a surface acoustic wave (one-way) through the SAW waveguide corresponding ,. 应答信号S,的延时与SAW波导的一倍相对应。 Doubled the SAW waveguide delay response signal S, corresponding to.

以上说明是针对天线211所接收的询问信号的,但是类似的,也适用于天线212所接收的询问信号,从天线211输出应答信号S1}并且从天线212输出应答信号S2。 The above description is directed to the antenna 211 of the received interrogation signal, but similar, also apply to the interrogation signal received by the antenna 212, the response signal S1} from the antenna 211 and outputs the response signal S2 is output from the antenna 212. 因此,在没有对可变电感器222施加外力的状态下,只输出了应答信号S2,而在对可变电感222施加了外力的状态下,除了应答信号S2之外,还输出了应答信号S,。 Thus, in a state where no external force is applied to the variable inductor 222, only the response signal S2 is output, and in a state where external force is applied to the variable inductor 222, in addition to the response signal S2, also outputs the response signal S ,.

利用上述的根据本实施例的状态检测系统5,能够以无线方式进行外力的检测。 According to the above-described state detection system 5 according to this embodiment, the external force can be detected using a wireless manner. 此外,在状态检测系统5中,不管是否对可变电感器222 施加外力,总是输出应答信号S2。 Further, the detection system 5 in a state, regardless of whether an external force is applied to the variable inductor 222, the response is always the output signal S2. 因此,除了检测是否存在外力的状态检测以外,还可以进行诸如传感器毁坏的传感器状态检测以及根据延时变化的温度检测。 Thus, in addition to detecting the presence of an external force other than the state of the detection sensor can be a sensor, such as a destroyed state detection and detection delay of the temperature change. 此外,在本实施例中,代替可变电感器222,可以使用其它阻抗变换元件,如可变电容器或可变电阻器。 Further, in the present embodiment, instead of the variable inductor 222, other impedance conversion element, such as a variable capacitor or a variable resistor. 7、第六实施例 7, the sixth embodiment

图8示出了根据本发明第六实施例的图像形成装置6的结构。 FIG 8 shows the structure of an image forming apparatus according to a sixth embodiment of the present invention is 6. 该图像形成装置6例如是诸如打印机或复印机的图像形成装置。 6, for example, the image forming apparatus such as a copying machine or a printer image forming apparatus. 图8中只示出了以下说明所必需的元件,如用于传输纸张的传输辊71、用于在纸张上进行图像形成的转印辊72、以及用于蓄积纸张的纸盘73。 FIG. 8 shows only the elements necessary for the following description, for the transfer roller as the transfer paper 71, a transfer roller for forming an image on the sheet 72, and a tray 73 for accumulating paper. 图像形成装置6包括收发器10和多个状态检测传感器20 (在所示示例中,为两个状态检测传感器20-1和20-2)。 The image forming apparatus 6 includes a transceiver 10 and a plurality of state detection sensor 20 (in the illustrated example, two state detecting sensors 20-1 and 20-2). 状态检测传感器20是上述第一到第五实施例中的任意传感器。 State detection sensor 20 is a sensor of any of the first to fifth embodiments. 将多个状态检测传感器20设计为使得它们各具有不同ID (不同延时),因此可以被相互区别开。 A plurality of state detection sensor 20 is designed such that they each have a different ID (differential delay), and therefore differ from each other can be opened. 沿着纸张(打印介质)传输路径P设置多个状态检测传感器20。 P a plurality of state detection sensor 20 in the sheet (print medium) transmission path. 例如,当使用在第一到第三实施例以及第五实施例中说明的对外力有无进行检测的传感器时,结构可以如下:其中在传输路径P上设置杠杆,当纸张通过时,将外力施加到状态检测传感器20。 For example, when used in the first to third embodiments and the fifth embodiment explained in the presence or absence of an external force sensor for detecting the structure may be as follows: wherein the lever disposed on the transmission paths P, when the sheet by the force 20 is applied to the state detection sensor. 另选地,当使用上述第四实施例中的检测光的有无的传感器时,可以是如下结构:其中,在传输路径P中设置光源,当纸张通过时,阻隔从光源发出的光。 Alternatively, when a sensor for detecting the presence or absence of light in the fourth embodiment above, may be the following structure: wherein, a light source disposed in the transmission path P, when the sheet through the barrier of light emitted from the light source. 在本实施例中,状态检测传感器20被构造成使得当纸张经过了状态检测传感器20的附近时输出应答信号。 In the present embodiment, the state detection sensor 20 is configured such that when the paper passes through the vicinity of the output response signal state detecting sensor 20.

当接收到针对询问信号的应答信号时,收发器10将所接收的应答信号输出到图像形成装置6的CPU (中央处理单元,图8中未示出)。 When receiving the reply signal for the interrogation signal when the response signal output from the transceiver 10 to the received image forming device 6 CPU (central processing unit, not shown in FIG. 8). CPU 通过诸如计算应答信号的延时的方法,从所输出的信号中提取状态检测传感器20的ID。 CPU latency response signal by a method such as computing, ID, state detection sensor 20 is extracted from the output signal. CPU根据所提取的ID判断纸张已经通过了哪个部分。 CPU according to the extracted ID is determined which part of the sheet has passed. 当纸张没有通过时,状态检测传感器20不输出应答信号。 When the paper does not pass, the status detection sensor 20 does not output a response signal.

图9是示出了图像形成装置6的操作的流程图。 FIG 9 is a flowchart illustrating operation of the image forming device 6. CPU通过控制收发器IO使询问信号输出(步骤Sll)。 The CPU controls the transceiver the interrogation signal output IO (step Sll). 当针对该询问信号检测到一应答信号时(步骤S12:是),则CPU从所检测到的应答信号中提取ID (步骤S13)。 When (step S12: Yes) detects a response signal for the interrogation signal, extracting the CPU ID (step S13) from the detected signal in response. 当已经成功提取了ID时(步骤S13:是),CPU创建所提取的ID的列表, 并将该列表存储在存储部分中(步骤SH)。 When (Step S13: YES) has been successfully extracted ID to the ID list, the CPU creates extracted, and in the storage section (step SH) This list is stored. 当ID提取失败时(步骤S13: 否),CPU判定发生了ID检测错误(步骤S15),并且通过控制收发器IO来再次输出询问信号(步骤Sll)。 Extraction failed when ID (Step S13: NO), the CPU determines a detection error ID (step S15) has occurred, and outputs an interrogation signal (step Sll) by controlling the IO transceiver again. 当针对该询问信号没有检测到应答信号时(步骤S12:否),则CPU判定纸张没有通过(步骤S16)。 When (Step S12: NO) does not detect a response signal for the interrogation signal, the CPU determines that the paper has not passed (step S16). 通过以上方式,当检测到纸张通过或没有通过时,CPU根据该情况执行处理(步骤S17)。 , When the paper is detected or not passed through, in this case the CPU performs processing according to the above manner (step S17). 根据需要重复执行以上处理。 The need to repeat the above processing.

收发器10还可以包括单个天线,或者如果需要,收发器10可以包括多个天线以发送和接收信号。 The transceiver 10 may also include a single antenna, or, if desired, the transceiver 10 may include multiple antennas to transmit and receive signals. 此外,为了防止电磁波泄漏到图像形成装置6的外部,可以利用导电材料覆盖图像形成装置6的外壳。 In order to prevent leakage of electromagnetic waves to outside of the image forming apparatus 6, the image may be covered with a conductive material forming the housing apparatus 6. 此外, 为了确保与图像形成装置6内的其它电子组件的EMC (电磁兼容性),状态检测系统可以与其他电子组件电磁遮蔽开。 Further, in order to ensure EMC (electromagnetic compatibility) of the other electronic components within the image forming apparatus 6, the state detection system can shield electromagnetic apart from other electronic components.

根据本发明的状态检测传感器可以用于图8所示的纸张通过传感器之外的应用。 The state detecting sensor of the present invention may be used for paper shown in FIG. 8 is applied to the sensor by. 例如,根据本发明的状态检测传感器还可以用于诸如分选器(sorter)或门开/关部分的可移动部分的状态检测。 For example, the state detection sensor according to the present invention may also be used movable state / closing portion such as a portion of the sorter (Sorter) or door opening detection. 在这种情况下, 根据可移动部分的移动状态,在施加到状态检测传感器的外力(或光) 变化的位置处设置状态检测传感器。 In this case, according to the moving state of the movable portion is provided at the position of state detection sensor detects the state of an external force applied to the sensor (or light) changes. 例如,可以在当门关闭时光不会照射到、而当门打开时光会照射到的位置处设置状态检测传感器。 For example, the time can be closed when the door is not irradiated to, the time when the door is opened to be irradiated state detection sensor disposed at the position. 由此, 可以检测门的开/关状态。 Accordingly, the door can be detected on / off state. 另选地,可以设置电位计(potentiometer)来响应于门的开/关而改变其电阻。 Alternatively, a potentiometer may be provided (Potentiometer) in response to the opening / closing door changes its resistance. 由此,该系统可以检测门的状态,换言之,该系统可以检测门是打开的还是关闭的。 Thus, the system can detect the state of the door, in other words, the system can detect the door is open or closed. 再另选地,可以设置阻抗响应于环境状态而变化的传感器。 Alternatively, again, it may be provided in response to a change in the impedance sensor environmental conditions. 环境状态例如包括温度、力、电场或磁场。 For example environmental conditions including temperature, power, electrical or magnetic fields. 可以使用自动调温器或热敏电阻作为感知温度变化的设备。 Thermostat may be used as a thermistor or temperature sensing device. 可以使用应力计量器(strain gage)或压电设备作为感知力的变化的设备。 Stress gauge may be used (strain gage) or a piezoelectric device as the device changes the perception. 可以使用静电电容来感知电场的变化。 You can use the capacitance to sense changes in electric field. 可以使用电感来感知磁场的变化。 You may be used to sense changes in the magnetic field of the inductor.

另选地,可以使用以上实施例中说明的状态检测传感器来测量纸盘中剩余的纸量。 Alternatively, in the embodiment described state detection sensor to measure the amount of paper remaining in the tray of the above embodiment may be used. 也就是,在依据纸盘中蓄积的纸量对状态检测传感器施加外力的位置处设置状态检测传感器。 That is, based on the amount accumulated in the paper tray is provided at a position applied external force sensor for detecting the state of the state detection sensor. 例如,可以使用状态检测系统l, 其被构造为由纸盘中积累的纸张的重量来将铁磁棒2222插入空芯线圈2221中。 For example, L may be used detecting system, which is configured by the accumulated weight of the paper tray to the ferromagnetic rod 2222 is inserted into the air core coil 2221. 在这种情况下,由于铁磁棒2222被插入空芯线圈2221中的量(即,阻抗改变量)随着纸盘中蓄积的纸的重量(紙的张数)而变化, 因此应答信号的强度产生变化。 In this case, since the amount of the ferromagnetic rod 2222 is inserted into the air core coil 2221 (i.e., the impedance change amount) with the weight of the paper tray accumulated (the number of sheets of paper) is changed, and therefore the response signal intensity changes. 也就是,通过该结构,可以根据应答信号的强度来测量剩余纸量。 That is, by this configuration, the amount of paper may be measured based on the intensity of the response signal. 纸盘中剩余纸张的计量结构不限于此;可以采用各种型式的结构,诸如其中根据纸张厚度对状态检测传感器施加外力的结构。 Remaining paper tray metering structure is not limited thereto; the structure of various types may be employed, such as a structure in which an external force is applied to the state detecting sensor according to the paper thickness.

因为使用上述状态检测传感器20的系统不需要布置信号线,所以该传感器可以设置在难以布置信号线的小空间内。 Since no signal line is arranged above the system state detection sensor 20, so that the sensor may be disposed in a small space it is difficult to arrange the signal lines. 此外,在强噪声的环境中,如电机附近,通过适当地选取要使用的信号频率,与有线连接的情况相比,可以更为减少检测错误。 In addition, in very noisy environments, such as close to the motor, by properly selecting the signal frequency to be used, compared with the case of wired connection, detection errors can be reduced more.

8、其它实施例 8, other embodiments

本发明不限于上述实施例,可以有多种经过变型的实施例。 The present invention is not limited to the above embodiments, it may be through a variety of variations of the embodiment.

在以上实施例中,说明了使用SAW-ID标签作为识别信号发生单元的模式,但是识别信号发生单元不限于SAW-ID标签。 In the above embodiment, the mode is described using the SAW-ID tag as an identification signal generating unit, but the identification signal generating unit is not limited to SAW-ID tag. 例如,可以使用RF-ID 标签、延迟线等。 For example, a RF-ID tag, delay line.

此外,在以上实施例中,说明了分别单独使用可变电感器、可变电容器、可变电阻器和电力生成器作为阻抗变换单元的模式,但是还可以通过组合它们来构造阻抗变换单元。 Further, in the above embodiment, description has been used alone or a variable inductor, a variable capacitor, a variable resistor and a power generator mode as an impedance transform unit, but they may also be constructed by combining the impedance transform unit. 例如,在图2所示的状态检测系统1 中,可以使用可变电容器代替电容器2227。 For example, in the state shown in FIG. 2 detection system 1, the variable capacitor may be used instead of the capacitor 2227.

此外,在以上第六实施例中,说明了其中根据信号延时来识别多个SAW-ID标签的模式,但是ID识别并不限于使用延时的结构。 Further, in the above sixth embodiment, which illustrates the patterns to identify a plurality of SAW-ID tag based on the signal delay, but not limited to the ID for identifying the structure of a time delay. 还可以是这 It may also be

样的结构,其中电容器和电感器的参数被适当设计为使得利用应答信号的频率进行ID识别。 Like structure, in which the parameters of the inductor and capacitor design are appropriately identified as the ID response signal such that the frequency utilization.

此外,在以上实施例中,收发器10具有发送询问信号的功能以及接收应答信号的功能,但是询问信号发送器和应答信号接收器可以被分别构造为分立的装置。 Further, in the above embodiment, the transceiver 10 has a function of transmitting an interrogation signal, and a function of receiving a response signal, the transponder interrogation signal transmitter and signal receiver may be separately configured as a separate device.

此外,在第六实施中,说明了使用根据本发明的状态检测传感器的图像形成装置,但是根据本发明的状态检测传感器可以用于图像形成装置之外的电子设备中,或者机械设备中。 Further, in the sixth embodiment, the description of the image forming apparatus according to use status detection sensor of the present invention, but according to the state detecting sensor according to the present invention can be used in electronic devices other than the image forming apparatus, or mechanical device. 可以基于根据本发明的状态检测传感器的输出对电子设备进行控制。 It based on control of the state of the electronic device according to an output of the detecting sensor of the present invention. 对于机械设备,用户或装置可以监测远程位置处的机械设备的状态。 For machinery, or the user can monitor the state of the mechanical device at the remote location equipment. 此外,电子设备可以基于状态检测传感器的输出进行机械设备的反馈控制。 In addition, the electronic device may be a mechanical feedback control device based on the output of the state detection sensor. 如上所述,本发明提供了一种无线应答装置,其包括接收询问信号的天线、无源地进行工作并针对天线接收的询问信号生成应答信号的识别信号发生单元、以及设置在天线与识别信号发生单元之间的、其中阻抗响应于环境的状态而变化的阻抗变换单元。 As described above, the present invention provides a wireless response device that includes an antenna receiving interrogation signals, passively working interrogation and identification signal generating means generates a response signal for the signal received by the antenna, and the antenna is provided with the identification signal wherein the impedance conversion unit in response to the state of the environment, the impedance varies between the generating unit.

该无线应答装置以无线方式输出指示环境状态的应答信号。 The wireless response device wirelessly outputs a response signal indicating the state of the environment. 因为当建立应答装置时无需构造信号线,所以可以减少建立和维护应答装置时的工时。 Because no configuration setup response signal line when the device can be reduced and maintenance time when establishing the response apparatus.

在一个实施例中,在该无线应答装置中,阻抗变换单元可以包括以 In one embodiment, the wireless transponder device, the impedance conversion unit may include

下任何一种:可变电容器,利用该可变电容器,无线应答装置的电容随着外力而变化;可变电感器,利用该可变电感器,无线应答装置的电感随着外力而变化;以及可变电阻器,利用该可变电阻器,无线应答装置的电阻随着外力或光照而变化。 Either: a variable capacitor, with which a variable capacitor, the wireless transponder device varies with an external force; variable inductor, by using the variable inductor, the inductance of the wireless transponder with an external force changes ; and a variable resistor, a variable resistor with which the resistance force with the wireless transponder device or illumination changes.

根据该无线应答装置,能够以无线方式检测外力或光照的变化。 According to this wireless response device, capable of detecting a change in external illumination or wirelessly.

在另一实施例中,该无线应答装置可以响应于阻抗变换单元中的阻抗变化量,输出多值信号。 In another embodiment, the wireless transponder device in response to a change amount of impedance in the impedance conversion unit, the output multi-value signal.

根据该无线应答装置,输出应答信号作为多值信号。 Means for outputting a response based on the response signal as the wireless multi-value signal. 由此,可以获得与应答装置的安装位置有关的更详细信息。 Accordingly, the mounting position of the transponder can be obtained more detailed information about.

在又一实施例中,在这些无线应答装置中,识别信号发生装置可以包括RF-ID标签、延迟线和SAW-ID标签中的任何一个。 In yet another embodiment, in which the wireless transponder, the identification signal generating means may comprise any of a RF-ID tag, delay line and the SAW-ID tag.

此外,本发明提供了一种图像形成装置,其包括:图像形成单元, 其在记录材料上形成图像;记录材料蓄积单元,其对记录材料进行蓄积; 传输单元,其将记录材料沿着从记录材料蓄积单元到图像形成单元的传输路径传输;任一以上无线应答装置,沿着传输路径设置在如下位置, 在该位置处,由于记录材料通过无线应答装置附近,所以施加到该无线应答装置的外力发生变化,或者入射到该应答装置的光的强度发生变化; 以及收发单元,其向/从无线应答装置发送/接收信号。 Further, the present invention provides an image forming apparatus, comprising: an image forming unit that forms an image on a recording material; recording material accumulating unit that accumulates the recording material; and a transmission unit, along which the recording material from the recording material storage means to the image forming unit of the transmission path; any one or more wireless transponder device disposed along the transport path at a position, at which position, the recording material passes through the vicinity of the wireless transponder, it is applied to the wireless transponder device change in intensity of the external force changes, or light incident on the response generating device; and a transceiver unit to / from the wireless transponder device transmitting / receiving signals.

因为利用无线应答装置来检测记录材料的通过,所以该图像形成装置可以减少制造和维护成本。 Since the recording material is detected by using the wireless transponder device, the image forming apparatus can reduce the manufacturing and maintenance costs. 此外,即使在空间较小无法进行有线安装的位置,也可以安装该应答装置。 Further, even if the position of the cable can not be installed in a smaller space, the responder device may be mounted. 此外,本发明提供了一种图像形成装置,其包括:图像形成单元, 其在记录材料上形成图像;记录材料蓄积单元,其对记录材料进行蓄积; 传输单元,其将记录材料沿着从记录材料蓄积单元到图像形成单元的传 Further, the present invention provides an image forming apparatus, comprising: an image forming unit that forms an image on a recording material; recording material accumulating unit that accumulates the recording material; and a transmission unit, along which the recording material from the recording material storage means to transfer the image forming unit

输路径传输;任一以上无线应答装置,在记录材料蓄积单元中设置在如下位置,在该位置处,根据蓄积在记录材料蓄积单元中的记录材料量, 施加到该无线应答装置的外力发生改变,或者入射在该应答装置上的光的强度发生改变;以及收发单元,其向/从无线应答装置发送/接收信号。 Transmission path transmission; force to any one of the above wireless response devices, provided at a position in the recording material accumulating unit, at which position, depending on the amount of the recording material accumulated in the recording material accumulating unit, is applied to that wireless response device changes , or the intensity of light incident on that response apparatus changes; and a transceiver unit to / from the wireless transponder device transmitting / receiving signals.

因为利用无线应答装置来检测记录材料的通过,所以该图像形成装置可以减少制造和维护成本。 Since the recording material is detected by using the wireless transponder device, the image forming apparatus can reduce the manufacturing and maintenance costs. 此外,即使在空间较小无法进行有线安装的位置处,也可以安装该应答装置。 Further, even if the cable can not be installed at a position in a smaller space, the responder device may be mounted.

此外,本发明提供了一种电子设备,包括:可移动部分;任一以上无线应答装置,设置在如下位置,在该位置处,根据所述可移动部分的移动状态,施加到所述无线应答装置的外力发生改变,或者入射在所述应答装置上的光的强度发生改变;以及收发单元,其向/从无线应答装置发送/接收信号。 Further, the present invention provides an electronic device, comprising: a movable portion; wireless transponder device of any one of the foregoing, provided at a position, at which position, according to the moving state of the movable portion, is applied to the wireless transponder external apparatus is changed, or the change in the intensity of light incident occurs on the transponder device; and a transceiving unit that transmits the device / reply from a wireless / receive signals.

因为利用无线应答装置来检测记录介质的通过,所以该电子设备可以降低制造和维护成本。 Since the recording medium is detected by using the wireless transponder device, the electronic device may reduce the manufacturing and maintenance costs. 此外,即使在空间较小无法进行有线安装的位置处,也可以安装该应答装置。 Further, even if the cable can not be installed at a position in a smaller space, the responder device may be mounted.

本发明实施例的以上说明只是用于例示和说明的目的。 Embodiment of the present invention, the above-described embodiment is for the purpose of illustration and description. 前述说明并不旨在将本发明穷尽在或限制在所公开的精确形式。 The foregoing description of the present invention is not intended to be exhaustive or to limit the precise forms disclosed. 很明显,对于本领域的技术人员来说,许多修改和变型是显而易见的。 It is obvious to those skilled in the art, many modifications and variations will be apparent. 所选择并描述的实施例是为了最好地解释本发明的原理及其实际应用,从而使本领域其他技术人员理解本发明的各种实施例及其各种变型例,以适合于特定的预期使用。 The embodiments were chosen and described in order to best explain the principles of the invention and its practical application so that others skilled in the art to understand the various embodiments and various modifications of the embodiment of the present invention, to suit the particular intended use. 应该理解,本发明的范围由下面的权利要求和它们的等同物限定。 It should be understood that the scope of the present invention is defined by the following claims and their equivalents.

2005年6月15日提交的日本专利申请No. 2005-166055以及2005 年12月20日提交的No. 2005-366834的全部公开,包括说明书、权利要求书、附图和摘要通过引用全部合并在本文中。 Japanese Patent, filed June 15, 2005 the entire disclosure of Application No. 2005-166055, and No. 2005, filed 20 December 2005-366834 including specification, claims, drawings and abstract is incorporated by reference in its entirety this article.

Claims (7)

1、一种无线应答装置,该无线应答装置包括: 第一天线,其接收询问信号; 第二天线,其接收所述询问信号; 基板,其传播信号; 第一识别信号发生单元,其形成在所述基板上并与所述第一天线相连,其产生针对所述第一天线所接收的所述询问信号的第一应答信号,并且无源地进行工作; 第二识别信号发生单元,其形成在所述基板上并与所述第二天线相连,其产生针对所述第二天线所接收的所述询问信号的第二应答信号,并且无源地进行工作;以及阻抗变换单元,其设置在所述第一天线与所述第一识别信号发生单元之间,并且其阻抗响应于环境的状态而改变, 其中,所述第一响应信号通过所述基板从所述第一识别信号发生单元传播到所述第二识别信号发生单元,并被所述第二天线发送, 所述第二响应信号通过所述基板从所述第二识别信号发 A wireless transponder device, the wireless transponder device comprising: a first antenna for receiving an interrogation signal; a second antenna that receives the interrogation signal; a substrate propagated signal; a first identification signal generating unit, which is formed in the the upper substrate and connected to said first antenna, which generates a first response signal for the interrogation signal received by the first antenna, and operates passively; a second identification signal generating unit, which is formed and is connected to the second antenna on the substrate, which generates a second response signal to the interrogation signal is received for the second antenna, and operates passively; and an impedance conversion unit that is provided the first antenna between the first identification signal generating unit, and its impedance state in response to environmental changes, wherein the first response signal propagates from the first identification signal generating unit by the substrate to said second identification signal generating unit and the transmitting antenna, the second response signal through the substrate from the second identification signal is sent 单元传播到所述第一识别信号发生单元,被所述第一识别信号发生单元反射,通过所述基板从所述第一识别信号发生单元传播到所述第二识别信号发生单元,并被所述第二天线发送。 Means to propagate the first identification signal generating unit of the first identification signal generating unit reflected, propagated from the first identification signal generating means to said second identification signal generating means through the substrate, and the said transmitting antenna.
2、 根据权利要求l所述的无线应答装置,其中所述阻抗变换单元包括以下中的至少任一个:可变电容器,其电容随着外力而改变;可变电感器,其电感随着外力而改变;以及可变电阻器,其电阻随着外力或光照而改变。 2. The wireless transponder according to claim l, wherein said impedance conversion means comprises at least any one of: a variable capacitor whose capacitance changes as an external force; variable inductor, its inductance as an external force change; and a variable resistor whose resistance varies with an external force or light.
3、 根据权利要求l所述的无线应答装置,其中无线应答装置响应于所述阻抗变换单元中的阻抗变化量,输出多值信号。 3. The apparatus of claim l wireless transponder according to output multi-value signal, wherein the wireless transponder device in response to a change amount of the impedance of the impedance transform unit.
4、 根据权利要求1所述的无线应答装置,其中所述识别信号发生单元包括SAW-ID标签、RF-ID标签和延迟线中的任意一种。 4. The apparatus of claim wireless transponder of claim 1, wherein said identification signal generating means comprises any of a SAW-ID tag, RF-ID tag and a delay line.
5、 一种图像形成装置,包括:图像形成单元,其在记录材料上形成图像;记录材料蓄积单元,其对所述记录材料进行蓄积;传输单元,其将所述记录材料沿着从所述记录材料蓄积单元到所述图像形成单元的传输路径传输;无线应答装置,其中所述无线应答装置沿着所述传输路径设置,并且设置在如下位置,在该位置处,由于记录材料经过所述无线应答装置附近,所以施加到所述无线应答装置的外力发生改变,或者入射到所述应答装置的光的强度发生改变;以及收发单元,其向/从所述无线应答装置发送/接收信号,其中所述无线应答装置包括-第一天线,其接收询问信号;第二天线,其接收所述询问信号;基板,其传播信号;第一识别信号发生单元,其形成在所述基板上并与所述第一天线相连,其产生针对所述第一天线所接收的所述询问信号的第一 5. An image forming apparatus, comprising: an image forming unit that forms an image on a recording material; recording material accumulating unit that accumulates the recording material; and a transmission unit, along which the recording material from the a recording material accumulating unit to the transmission path of the image forming unit; wireless transponder, wherein said wireless transponder device disposed along the transport path, and is disposed at a position, at which position, the recording material passes through the nearby wireless transponder device, the wireless transponder device is applied to the external force changes, or to change the intensity of light incident on the occurrence of said response means; and a transceiver unit to / from the wireless transponder device transmitting / receiving signal, wherein said wireless transponder device comprises - a first antenna, receiving an interrogation signal; a second antenna that receives the interrogation signal; a substrate propagated signal; a first identification signal generating unit, which is formed on the substrate and with coupled to the first antenna, which generates a first interrogation signal for the first antenna of the received 答信号, 并且无源地进行工作;第二识别信号发生单元,其形成在所述基板上并与所述第二天线相连,其产生针对所述第二天线所接收的所述询问信号的第二应答信号, 并且无源地进行工作;以及阻抗变换单元,其设置在所述第一天线与所述第一识别信号发生单元之间,并且其阻抗响应于环境的状态而改变;其中,所述第一响应信号通过所述基板从所述第一识别信号发生单元传播到所述第二识别信号发生单元,并被所述第二天线发送,所述第二响应信号通过所述基板从所述第二识别信号发生单元传播到所述第一识别信号发生单元,被所述第一识别信号发生单元反射,通过所述基板从所述第一识别信号发生单元传播到所述第二识别信号发生单元,并被所述第二天线发送。 A signal, and operates passively; a second identification signal generating unit, which is formed and connected to the second antenna on the substrate, which generates a first interrogation signal for said second antenna received second answer signal, and operates passively; and an impedance conversion unit provided between the first antenna and the first identification signal generating unit, and its impedance state in response to environmental changes; wherein the said first response signal propagating through the substrate from the first identification signal generating means to said second identification signal generating unit and the transmitting antenna, the second response signal through the substrate from the said second identification signal generating unit is propagated to the first identification signal generating unit of the first identification signal generating unit is reflected to the second transmission unit of said first identification signal from the identification signal generating substrate by the generating unit and the transmitting antenna.
6、 一种图像形成装置,包括:图像形成单元,其在记录材料上形成图像;记录材料蓄积单元,其对所述记录材料进行蓄积;传输单元,其将所述记录材料沿着从所述记录材料蓄积单元到所述图像形成单元的传输路径传输;无线应答装置,其中所述无线应答装置在所述记录材料蓄积单元中设置在如下位置,在该位置处,根据蓄积在所述记录材料蓄积单元中的记录材料的量,施加到所述无线应答装置的外力发生改变,或者入射在所述应答装置上的光的强度发生改变;以及收发单元,其向/从所述无线应答装置发送/接收信号,其中所述无线应答装置包括:第一天线,其接收询问信号;第二天线,其接收所述询问信号;基板,其传播信号;第一识别信号发生单元,其形成在所述基板上并与所述第一天线相连,其产生针对所述第一天线所接收的所述询问信号 6. An image forming apparatus, comprising: an image forming unit that forms an image on a recording material; recording material accumulating unit that accumulates the recording material; and a transmission unit, along which the recording material from the a recording material accumulating unit to the transmission path of the image forming unit; wireless transponder, wherein said wireless transponder device in the recording material accumulating unit disposed at a position, at which position, according to the recording material stored in amount of the recording material accumulating unit, the wireless transponder is applied to the external force changes, or changes in the intensity of light incident occurs on said response means; and a transceiver unit to / from the wireless transponder device transmits / reception signal, wherein said wireless transponder device comprising: a first antenna for receiving an interrogation signal; a second antenna that receives the interrogation signal; a substrate propagated signal; a first identification signal generating means, formed in said on the substrate and connected to said first antenna, which generates a first interrogation signal for said received by the antenna 的第一应答信号, 并且无源地进行工作;第二识别信号发生单元,其形成在所述基板上并与所述第二天线相连,其产生针对所述第二天线所接收的所述询问信号的第二应答信号, 并且无源地进行工作;以及阻抗变换单元,其设置在所述第一天线与所述第一识别信号发生单元之间,并且其阻抗响应于环境的状态而改变,其中,所述第一响应信号通过所述基板从所述第一识别信号发生单元传播到所述第二识别信号发生单元,并被所述第二天线发送,所述第二响应信号通过所述基板从所述第二识别信号发生单元传播到所述第一识别信号发生单元,被所述第一识别信号发生单元反射,通过所述基板从所述第一识别信号发生单元传播到所述第二识别信号发生单元,并被所述第二天线发送。 A first response signal, and operates passively; a second identification signal generating unit, which is formed and connected to the second antenna on the substrate, which generates the interrogation antenna for the received second answer signal, and operates passively; and an impedance conversion unit that is provided with the first identification signal occurs between the first antenna element, and changes its resistance in response to the state of the environment, wherein the first response signal propagates from the first identification signal generating means to said second identification signal generating means through said substrate, and said second transmission line, the second response signal through the propagating from the substrate the second identification signal generating means to said first identification signal generating unit of the first identification signal generating unit is reflected to the second transmission unit of said first identification signal generating from said substrate by two identification signal generating unit and the transmitting antenna.
7、 一种设备,包括:可移动部分;无线应答装置,其中所述无线应答装置设置在如下位置,在该位置处,根据所述可移动部分的移动状态,施加到所述无线应答装置的外力发生改变,或者入射在所述应答装置上的光的强度发生改变;以及收发单元,其向/从所述无线应答装置发送/接收信号, 其中所述无线应答装置包括:第一天线,其接收询问信号; 第二天线,其接收所述询问信号; 基板,其传播信号;第一识别信号发生单元,其形成在所述基板上并与所述第一天线相连,其产生针对所述第一天线所接收的所述询问信号的第一应答信号, 并且无源地进行工作;第二识别信号发生单元,其形成在所述基板上并与所述第二天线相连,其产生针对所述第二天线所接收的所述询问信号的第二应答信号, 并且无源地进行工作;以及阻抗变换单元,其设置在 7. An apparatus, comprising: a movable portion; wireless transponder, wherein said wireless transponder device is disposed at a position, at which position, according to the moving state of the movable portion, is applied to the wireless transponder device external changes, or changes in the intensity of light incident occurs on said response means; and a transceiver unit to / from the wireless transponder device transmitting / receiving signals, wherein the wireless transponder device comprising: a first antenna receiving an interrogation signal; a second antenna that receives the interrogation signal; a substrate propagated signal; a first identification signal generating unit, which is formed and connected to the first antenna on the substrate, which generates for the first a first antenna received the interrogation signal a response signal, and operates passively; a second identification signal generating unit, which is formed and connected to the second antenna on the substrate, which is generated for the said second interrogation signal a response signal received by the second antenna, and operates passively; and an impedance conversion unit that is provided 述第一天线与所述第一识别信号发生单元之间,并且其阻抗响应于环境的状态而改变,其中,所述第一响应信号通过所述基板从所述第一识别信号发生单元传播到所述第二识别信号发生单元,并被所述第二天线发送,所述第二响应信号通过所述基板从所述第二识别信号发生单元传播到所述第一识别信号发生单元,被所述第一识别信号发生单元反射,通过所述基板从所述第一识别信号发生单元传播到所述第二识别信号发生单元,并被所述第二天线发送。 Between said first antenna of said first identification signal generating unit, and its impedance state in response to environmental changes, wherein the first response signal propagating unit identification signal generating from the first through to the substrate the second identification signal generating unit and the transmitting antenna, the second response signal propagates through said substrate from said second identification signal generating means to said first identification signal generating unit, being said first identification signal generating unit is reflected to the second transmission unit identification signal generating means from said first through said identification signal generating substrate, and said second transmission line.
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