JP2568429B2 - Wireless transponder - Google Patents
Wireless transponderInfo
- Publication number
- JP2568429B2 JP2568429B2 JP63217483A JP21748388A JP2568429B2 JP 2568429 B2 JP2568429 B2 JP 2568429B2 JP 63217483 A JP63217483 A JP 63217483A JP 21748388 A JP21748388 A JP 21748388A JP 2568429 B2 JP2568429 B2 JP 2568429B2
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- response
- voltage
- wireless
- output
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
- G06K7/10316—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves using at least one antenna particularly designed for interrogating the wireless record carriers
- G06K7/10346—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves using at least one antenna particularly designed for interrogating the wireless record carriers the antenna being of the far field type, e.g. HF types or dipoles
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
- G01S13/75—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems using transponders powered from received waves, e.g. using passive transponders, or using passive reflectors
- G01S13/751—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems using transponders powered from received waves, e.g. using passive transponders, or using passive reflectors wherein the responder or reflector radiates a coded signal
- G01S13/758—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems using transponders powered from received waves, e.g. using passive transponders, or using passive reflectors wherein the responder or reflector radiates a coded signal using a signal generator powered by the interrogation signal
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/0701—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips at least one of the integrated circuit chips comprising an arrangement for power management
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/0723—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/0008—General problems related to the reading of electronic memory record carriers, independent of its reading method, e.g. power transfer
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
- G06K7/10316—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves using at least one antenna particularly designed for interrogating the wireless record carriers
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C3/00—Registering or indicating the condition or the working of machines or other apparatus, other than vehicles
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Toxicology (AREA)
- Health & Medical Sciences (AREA)
- Computer Networks & Wireless Communication (AREA)
- Artificial Intelligence (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Electromagnetism (AREA)
- General Health & Medical Sciences (AREA)
- Radar Systems Or Details Thereof (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Alarm Systems (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は、受信電波を整流回路で直流電力に変換して
応答ロジック回路の駆動電源として用いる無線応答装置
に関するものである。Description: TECHNICAL FIELD The present invention relates to a wireless transponder which converts received radio waves into DC power by a rectifier circuit and uses the DC power as a drive power source for a response logic circuit.
（従来の技術） 近年、無線応答装置を、人が所持しまたは移動物に付
設し、この無線応答装置に所持する人の適宜な情報また
は付設された移動物の適宜な情報等を記憶させ、定置さ
れる無線質問装置よりこの無線応答装置にマイクロ波で
質問信号を送信し、この質問信号を受信した無線応答装
置は適宜な応答信号をマイクロ波で無線質問装置に送信
し、無線質問装置は受信した応答信号を適宜な手段で照
合することで、人または移動物を識別する等のシステム
が提案されている。この無線応答装置に記憶させる個人
情報により、無線応答装置をIDカードや運転免許証とし
て機能させることができる。また、多品種少量生産を行
なう製造工場等において、製造ライン上にある半製品に
仕様データを記憶させた無線応答装置を付設し、各工程
において定置された無線質問装置から無線応答装置に仕
様を問い合せ、この仕様に応じて作業を行なわせるなら
ば、無線応答装置を電子的な仕様指示書として機能させ
ることができる。(Prior Art) In recent years, a wireless transponder has been attached to a person or attached to a moving object, and appropriate information of the person having the wireless transponder or appropriate information of the attached moving object has been stored. A wireless interrogation device transmits an interrogation signal to the radio transponder by microwave to the radio transponder, and the radio transponder receiving the interrogation signal transmits an appropriate response signal to the radio interrogation device by microwave. There has been proposed a system for identifying a person or a moving object by collating received response signals by appropriate means. With the personal information stored in the wireless transponder, the wireless transponder can function as an ID card or a driver's license. Also, in a manufacturing factory that performs high-mix low-volume production, a wireless transponder that stores specification data in semi-finished products on the production line is attached, and the specifications are sent to the radio transponder from the wireless interrogator that is fixed in each process. If the inquiry is made and the operation is performed according to this specification, the wireless transponder can function as an electronic specification instruction sheet.
ここで、無線応答装置を上述のIDカードや運転免許証
および仕様指示書等として機能させる場合に、携帯や移
動に対して商用交流電源から駆動電力を供給することは
不便であり、また内蔵する電池から駆動電力を供給する
ならば、無線応答装置の小型軽量化および寿命の点で充
分な満足が得られない。Here, when the wireless transponder functions as the above-described ID card, driver's license, specification instructions, and the like, it is inconvenient to supply driving power from a commercial AC power supply to a mobile phone or a mobile phone, and a built-in mobile phone is required. If drive power is supplied from a battery, sufficient satisfaction cannot be obtained in terms of reduction in size and weight and life of the wireless transponder.
そこで、外部の無線質問装置から無線応答装置に向け
て送信されるマイクロ波を無線応答装置で受信し、この
受信電波を整流回路で直流電力に変換し、そのエネルギ
を応答ロジック回路の駆動電源として利用するようにし
た技術が、特開昭56−140486号公報および特開昭63−54
023号公報等に示されている。これらで示された従来の
無線応答装置および無線質問装置からなるシステムの概
要を、第３図のブロック回路図を参照して説明する。Therefore, a microwave transmitted from an external wireless interrogation device to the wireless transponder is received by the radio transponder, the received radio wave is converted into DC power by a rectifier circuit, and the energy is used as a driving power source for the response logic circuit. The technology to be used is disclosed in JP-A-56-140486 and JP-A-63-54
No. 023 and the like. An outline of a system including the conventional wireless transponder and the wireless interrogator described above will be described with reference to a block circuit diagram of FIG.
第３図において、無線質問装置１に、エネルギ送信回
路２が設けられ、アンテナ３から無線応答装置４に向け
て無変調でエネルギ波f1が送信される。また、質問ロジ
ック回路５が設けられ、この質問ロジック回路５から出
力される質問信号が、質問送信回路６によりアンテナ７
から無線応答装置４に向けて質問信号波f2として送信さ
れる。さらに、無線質問装置１に、無線応答装置４から
送信される応答信号波f3を受信するアンテナ８が設けら
れ、このアンテナ８で受信された応答信号波f3から応答
受信回路９で応答信号が復調されて質問ロジック回路５
に与えられる。質問ロジック回路５では、送信した質問
信号に対して無線応答装置４からの応答信号が適正であ
るか否か等を識別し、または応答信号に応じた工程を行
なう動作信号等を出力させる。In FIG. 3, the wireless inquiry device 1, the energy transmitting circuit 2 is provided, the energy wave f 1 is transmitted without modulation from the antenna 3 to the wireless response device 4. Further, an interrogation logic circuit 5 is provided, and an interrogation signal output from the interrogation logic circuit 5 is transmitted by the interrogation transmission circuit 6 to the antenna 7.
From being transmitted as an interrogation signal wave f 2 to the wireless response device 4. Further, the wireless interrogation device 1 is provided with an antenna 8 for receiving a response signal wave f 3 transmitted from the wireless transponder 4, and a response signal wave is received by the response receiver circuit 9 from the response signal wave f 3 received by the antenna 8. Is demodulated and the question logic circuit 5
Given to. The interrogation logic circuit 5 identifies whether the response signal from the wireless transponder 4 is appropriate for the transmitted interrogation signal, or outputs an operation signal for performing a process according to the response signal.
無線応答装置４には、アンテナ３から送信されるエネ
ルギ波f1を受信するアンテナ10が設けられ、このアンテ
ナ10で受信されたエネルギ波f1が整流回路11で直流電力
に変換され、応答ロジック回路12の電源端子に与えられ
て駆動電源として用いられる。また、アンテナ７から送
信される質問信号波f2を受信するアンテナ13が設けら
れ、このアンテナ13で受信された質問信号波f1から質問
受信回路14で質問信号が復調され応答ロジック回路12に
与えられる。さらに、応答ロジック回路12から出力され
る応答信号が応答送信回路15に与えられ、アンテナ16か
ら応答信号波３として無線質問装置１に向けて送信され
る。なお、応答ロジック回路12は、質問信号に応じて適
宜に記憶情報に基づき演算して応答信号を出力し、また
質問信号により記憶の書き換えがなされる。The wireless response device 4, an antenna 10 for receiving energy wave f 1 to be transmitted from the antenna 3 is provided, the energy wave f 1 received by the antenna 10 is converted into DC power by the rectifier circuit 11, response logic The power is supplied to a power supply terminal of the circuit 12 and used as a drive power supply. The antenna 13 for receiving the interrogation signal wave f 2 transmitted from the antenna 7 is provided, to the antenna 13 interrogation signal in question receiving circuit 14 from the interrogation signal wave f 1 received by the demodulated response logic circuit 12 Given. Further, a response signal output from the response logic circuit 12 is provided to the response transmission circuit 15 and transmitted as a response signal wave 3 from the antenna 16 to the wireless interrogation device 1. The response logic circuit 12 outputs a response signal by performing an operation based on the stored information as appropriate according to the inquiry signal, and the memory is rewritten by the inquiry signal.
（発明が解決しようとする課題） ところで、上記した無線応答装置４にあっては、無線
質問装置１からの距離が長くなると、無線応答装置４で
受信し得るエネルギ波f1の電界強度が弱くなる。そし
て、それだけ整流回路11から出力される直流電力の容量
も少なく、応答ロジック回路12を適正に動作させるのに
最低必要な電圧が得られない事態を生じる。このよう
に、適正に動作をできる電圧が与えられずに、応答ロジ
ック回路12が動作状態とされると誤動作を生じ易く、誤
った演算動作に基づき誤った応答信号が出力され、また
は誤って記憶の書き換えがなされる等の虞れがある。特
に、誤って記憶の書き換えがなされると、以後正常動作
状態となっても、誤った記憶に基づき誤った応答信号が
出力される。(SUMMARY invention) By the way, in the wireless transponder 4 described above, the distance from the wireless inquiry device 1 becomes longer, the field strength of the energy wave f 1 which can receive a wireless response device 4 is weak Become. Then, the capacity of the DC power output from the rectifier circuit 11 is also small, and a situation arises in which the minimum necessary voltage for properly operating the response logic circuit 12 cannot be obtained. As described above, when the response logic circuit 12 is brought into an operation state without applying a voltage that can operate properly, a malfunction is likely to occur, and a wrong response signal is output based on a wrong operation operation or stored incorrectly. May be rewritten. In particular, if the memory is rewritten erroneously, an erroneous response signal will be output based on the erroneous memory even if the memory becomes normal thereafter.
本発明は、上記した従来の無線応答装置の事情に鑑み
てなされたもので、受信電波から所定の直流電力が得ら
れなければ応答動作せず、または所定の直流電力が得ら
れているか否かを表示するような無線応答装置を提供す
ることを目的とする。The present invention has been made in view of the circumstances of the conventional wireless transponder described above, and does not perform a response operation unless a predetermined DC power is obtained from a received radio wave, or whether a predetermined DC power is obtained. It is an object of the present invention to provide a wireless transponder that displays a message.
（問題点を解決するための手段） かかる目的を達成するために、本発明の無線応答装置
は、電圧比較回路の出力で制御される応答信号制御回路
を応答ロジック回路と応答送信回路との間に介装して、
整流回路の出力電圧が最低動作電圧以上のときに、応答
ロジック回路から出力される応答信号が応答信号制御回
路を介して応答送信回路に与えられるようにし、整流回
路の出力電圧が最低動作電圧より低いときに、警報信号
発生回路から出力される警報信号が応答信号制御回路を
介して応答送信回路に与えられるように構成されてい
る。(Means for Solving the Problems) In order to achieve the above object, the wireless transponder of the present invention includes a response signal control circuit controlled by an output of a voltage comparison circuit between a response logic circuit and a response transmission circuit. Interposed in
When the output voltage of the rectifier circuit is equal to or higher than the minimum operating voltage, the response signal output from the response logic circuit is provided to the response transmission circuit via the response signal control circuit, and the output voltage of the rectifier circuit is lower than the minimum operating voltage. When the signal level is low, the alarm signal output from the alarm signal generation circuit is provided to the response transmission circuit via the response signal control circuit.
（作用） 応答信号制御回路を設けたので、受信電波の電界強度
が弱くて整流回路の出力電圧が最低動作電圧以下のとき
に、応答信号が応答送信回路に与えられず、誤りの虞れ
のある応答信号が無線質問装置に向けて送信されない。
そして、応答信号に代えて警報信号を無線質問装置に向
けて送信するので、無線質問装置側で無線応答装置が適
正な電界強度範囲外にあることを容易に認識できる。(Operation) Since the response signal control circuit is provided, when the electric field strength of the received radio wave is weak and the output voltage of the rectifier circuit is lower than the minimum operating voltage, the response signal is not given to the response transmission circuit, and there is a possibility of an error. Certain response signals are not sent to the wireless interrogator.
Then, an alarm signal is transmitted to the wireless interrogation device instead of the response signal, so that the wireless interrogation device can easily recognize that the wireless transponder is out of the appropriate electric field strength range.
（実施例） 以下、本発明の実施例を第１図および第２図を参照し
て説明する。第１図は、本発明の無線応答装置の一実施
例を示すブロック回路図であり、第２図は、第１図の電
圧比較回路の具体的な一例を示す回路図である。第１図
および第２図において、第３図と同一回路ブロックには
同一符号を付けて重複する説明を省略する。(Example) Hereinafter, an example of the present invention will be described with reference to FIG. 1 and FIG. FIG. 1 is a block circuit diagram showing one embodiment of the wireless transponder of the present invention, and FIG. 2 is a circuit diagram showing a specific example of the voltage comparison circuit of FIG. 1 and 2, the same circuit blocks as those in FIG. 3 are denoted by the same reference numerals, and redundant description will be omitted.
第１図において、第３図に示す無線応答装置４と相違
するところは、整流回路11から出力される直流電力が、
応答ロジック回路12の電源端子に与えられるとともに、
電圧比較回路21に与えられる。この電圧比較回路21にお
いて、整流回路11の出力電圧と予め設定される最低動作
電圧とが比較され、その出力が応答ロジック回路12と応
答送信回路15との間に介装された応答信号制御回路30
と、警報信号発生回路31とに与えられる。そして、応答
信号制御回路30は、２回路１接点のスイッチ機能を有
し、一方の接続接点に応答ロジック回路12からの応答信
号が与えられ、他方の接続接点に警報信号発生回路31か
らの警報信号が与えられ、共通接点の信号が応答送信回
路15に与えられる。さらに、この応答信号制御回路30
は、電圧比較回路21の出力が“H"レベルであれば、第１
図に実線で示すごとく応答信号の与えられる一方の接続
端子と共通端子が接続され、電圧比較回路21の出力が
“L"レベルであれば第１図に破線で示すごとく警報信号
の与えらえる他方の接続端子と共通端子が接続される。
また、警報信号発生回路31は、電圧比較回路21の出力が
“L"レベルのときに警報信号を発生するように構成され
る。ここで、警報信号発生回路31と応答送信回路15は、
応答ロジック回路12の最低動作電圧よりも低い電圧でも
適正に動作できるように構成される。1 is different from the wireless transponder 4 shown in FIG. 3 in that the DC power output from the rectifier circuit 11 is
While being supplied to the power supply terminal of the response logic circuit 12,
It is provided to the voltage comparison circuit 21. In this voltage comparison circuit 21, the output voltage of the rectifier circuit 11 is compared with a preset minimum operating voltage, and the output is compared with a response signal control circuit interposed between the response logic circuit 12 and the response transmission circuit 15. 30
And an alarm signal generation circuit 31. The response signal control circuit 30 has a two-circuit, one-contact switch function. A response signal from the response logic circuit 12 is provided to one connection contact, and an alarm from the alarm signal generation circuit 31 is provided to the other connection contact. The signal is supplied, and the signal of the common contact is supplied to the response transmitting circuit 15. Further, the response signal control circuit 30
Is the first if the output of the voltage comparison circuit 21 is at "H" level.
As shown by the solid line in the figure, one of the connection terminals to which the response signal is given is connected to the common terminal, and if the output of the voltage comparison circuit 21 is at the "L" level, the alarm signal is given as shown by the broken line in FIG. The other connection terminal and the common terminal are connected.
The alarm signal generation circuit 31 is configured to generate an alarm signal when the output of the voltage comparison circuit 21 is at “L” level. Here, the alarm signal generation circuit 31 and the response transmission circuit 15
The response logic circuit 12 is configured to operate properly even at a voltage lower than the minimum operation voltage.
そして、電圧比較回路21は、第２図のごとく、整流回
路11の出力電圧が、抵抗R1とツェナーダイオードZDの直
列接続と、抵抗R2とR3の直列接続とを並列に介して接地
される。さらに、抵抗R1とツェナーダイオードZDの接続
点と、抵抗R2とR3の接続点との分圧電圧が、差動増幅器
COMPのそれぞれの入力端子に与えられ、差動増幅器COMP
の出力端子の出力が応答信号制御回路30と警報信号発生
回路31に与えられる。Then, the voltage comparator circuit 21, as in the Figure 2, the output voltage of the rectifier circuit 11, a series connection of a resistor R 1 and the Zener diode ZD, and a series connection of resistors R 2 and R 3 via the parallel ground Is done. Further, the divided voltage of the connection point of the resistors R 1 and the Zener diode ZD, a connection point of the resistors R 2 and R 3, the differential amplifier
Given to each input terminal of COMP, the differential amplifier COMP
Are supplied to the response signal control circuit 30 and the alarm signal generation circuit 31.
ここで、整流回路11の出力電圧を抵抗R2とR3で分圧し
た分圧電圧が、ツェナーダイオードZDのツェナー電圧よ
り低い範囲では、差動増幅器COMPは“L"レベルを出力
し、応答信号制御回路30が警報信号発生回路31側に切り
換え制御される。また、整流回路11の出力電圧が上昇
し、抵抗R2とR3による分圧電圧がツェナー電圧より高く
なれば差動増幅器COMPの出力は“H"レベルに反転し、応
答信号制御回路30が応答ロジック回路12側に切り換え制
御される。Here, when the divided voltage obtained by dividing the output voltage of the rectifier circuit 11 by the resistors R 2 and R 3 is lower than the Zener voltage of the Zener diode ZD, the differential amplifier COMP outputs “L” level, The signal control circuit 30 is switched to the alarm signal generation circuit 31 and controlled. Further, the output voltage of the rectifier circuit 11 rises, the output of the resistor R 2 and the differential the higher partial voltage by R 3 is than the Zener voltage amplifier COMP is inverted to "H" level, the response signal control circuit 30 Switching to the response logic circuit 12 is controlled.
かかる構成において、整流回路11の出力電圧が最低動
作電圧以上では、応答ロジック回路12は適正な動作をな
し、適正な応答信号が出力されてこれが応答信号制御回
路30を介して応答送信回路15に与えられ、応答信号波f3
として無線質問装置１に向けて送信される。In such a configuration, when the output voltage of the rectifier circuit 11 is equal to or higher than the minimum operating voltage, the response logic circuit 12 performs an appropriate operation and outputs an appropriate response signal, which is transmitted to the response transmission circuit 15 via the response signal control circuit 30. Given and response signal wave f 3
Is transmitted to the wireless interrogation device 1.
また、整流回路11の出力電圧が最低動作電圧以下で、
応答ロジック回路12が適正に動作し得る最低の電圧より
低い範囲のときは、誤っている可能性のある応答信号に
代えて警報信号が応答送信回路15に与えられ、応答信号
波f3として無線質問装置１に向けて送信される。そこ
で、無線質問装置１は警報信号を受信して無線応答装置
４が適正な電界強度範囲外であることを容易に識別でき
る。Also, when the output voltage of the rectifier circuit 11 is lower than the minimum operating voltage,
When response logic circuit 12 is properly less than the minimum voltage that can be operating range, incorrectly alarm signal in place of the response signal that might have is given to the response transmission circuit 15, the radio response signal wave f 3 It is transmitted to the inquiry device 1. Therefore, the wireless interrogation device 1 receives the alarm signal and can easily identify that the wireless transponder 4 is out of the appropriate electric field strength range.
そして、整流回路11の出力電圧が最低動作電圧以下の
ときに、応答信号が送信されず、仮に応答ロジック回路
12が駆動電圧が低いために誤動作したとしても、誤った
応答信号が送信されない。When the output voltage of the rectifier circuit 11 is lower than the minimum operating voltage, no response signal is transmitted, and the response logic circuit
Even if the device 12 malfunctions due to a low drive voltage, an erroneous response signal is not transmitted.
なお、第１図に示す上記実施例および第３図に示す従
来例では、エネルギ波f1を受信して直流電力に変換して
応答ロジック回路12の駆動電源として用いているが、い
かなる受信電波を直流電力に変換して駆動電源として用
いても良いことは勿論である。In the conventional example shown in the above Examples and Figure 3 shown in FIG. 1, is used as a driving power source of the response logic circuit 12 into a DC power by receiving the energy waves f 1, any received radio waves May be converted to DC power and used as a drive power source.
（発明の効果） 本発明は、以上説明したように構成されているので、
以下に記載されるような効果を奏する。(Effects of the Invention) Since the present invention is configured as described above,
The following effects are obtained.
整流回路から最低動作電圧以上の出力電圧が得られな
いときに、応答信号が送信されないようにするので、誤
った応答信号が送信されず、通信の信頼度が高くなる。
そして、応答信号が送信されないときに警報信号を送信
するので、無線質問装置側で無線応答装置が適正な動作
を行ない得る電界強度範囲外にあることを容易に識別し
得る。When the output voltage equal to or higher than the minimum operating voltage cannot be obtained from the rectifier circuit, the response signal is prevented from being transmitted, so that an erroneous response signal is not transmitted, and the reliability of communication is increased.
Since the warning signal is transmitted when the response signal is not transmitted, the wireless interrogation device can easily identify that the wireless transponder is out of the electric field strength range in which the wireless transponder can perform an appropriate operation.
第１図は、本発明の無線応答装置の一実施例を示すブロ
ック回路図であり、第２図は、第１図の電圧比較回路の
具体的な一例を示す回路図であり、第３図は、従来の無
線応答装置および無線質問装置からなるシステムの概要
を示すブロック回路図である。 4:無線応答装置、11:整流回路、 12:応答ロジック回路、14:質問受信回路、 15:応答送信回路、21:電圧比較回路、 30:応答信号制御回路、31:警報信号発生回路。FIG. 1 is a block circuit diagram showing an embodiment of the wireless transponder of the present invention. FIG. 2 is a circuit diagram showing a specific example of the voltage comparison circuit shown in FIG. 1, and FIG. FIG. 1 is a block circuit diagram illustrating an outline of a system including a conventional wireless transponder and a wireless interrogator. 4: Wireless transponder, 11: Rectifier circuit, 12: Response logic circuit, 14: Question receiving circuit, 15: Response transmitting circuit, 21: Voltage comparing circuit, 30: Response signal control circuit, 31: Alarm signal generating circuit.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 川島 義一 神奈川県藤沢市川名１丁目12番２号 山 武ハネウエル株式会社藤沢工場内 (72)発明者 石川 功 神奈川県藤沢市川名１丁目12番２号 山 武ハネウエル株式会社藤沢工場内 (56)参考文献 特開 昭64−10190（ＪＰ，Ａ) 特開 昭63−29282（ＪＰ，Ａ) 特開 昭63−187183（ＪＰ，Ａ) ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Yoshikazu Kawashima 1-12-2 Kawana, Fujisawa-shi, Kanagawa Prefecture Inside the Fujisawa Plant of Yamatake Honeywell Co., Ltd. (72) Inventor Isao Ishikawa 1-12-2 Kawana, Fujisawa-shi, Kanagawa Prefecture No. Takeshi Yamatake Honeywell Co., Ltd. Fujisawa Plant (56) References JP-A-64-10190 (JP, A) JP-A-63-29282 (JP, A) JP-A-63-187183 (JP, A)
Claims (1)
応答ロジック回路の駆動電源として用いる無線応答装置
において、前記整流回路の出力電圧と予め定めた最低動
作電圧を比較する電圧比較回路を設けるとともに、この
電圧比較回路の出力で制御される応答信号制御回路を前
記応答ロジック回路と応答送信回路との間に介装して、
前記整流回路の出力電圧が前記最低動作電圧以上のとき
に前記応答送信回路に前記応答ロジック回路から出力さ
れる応答信号が与えられるようにし、警報信号発生回路
を設け、前記整流回路の出力電圧が前記最低動作電圧よ
り低いときに前記警報信号発生回路から出力される警報
信号が前記応答信号制御回路を介して前記応答送信回路
に与えられるように構成したことを特徴とする無線応答
装置。1. A wireless transponder which converts a received radio wave into a DC power by a rectifier circuit and uses it as a drive power source of a response logic circuit, comprising: a voltage comparator circuit for comparing an output voltage of the rectifier circuit with a predetermined minimum operating voltage. And a response signal control circuit controlled by the output of the voltage comparison circuit, interposed between the response logic circuit and the response transmission circuit,
When the output voltage of the rectifier circuit is equal to or higher than the minimum operating voltage, a response signal output from the response logic circuit is provided to the response transmission circuit, and an alarm signal generation circuit is provided. A wireless transponder, wherein an alarm signal output from the alarm signal generation circuit when the voltage is lower than the minimum operating voltage is provided to the response transmission circuit via the response signal control circuit.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63217483A JP2568429B2 (en) | 1988-08-31 | 1988-08-31 | Wireless transponder |
| GB8919240A GB2224183B (en) | 1988-08-31 | 1989-08-24 | Radio transponder apparatus in transponder system |
| FR8911266A FR2636188B1 (en) | 1988-08-31 | 1989-08-25 | RADIO TRANSPONDER APPARATUS FOR TRANSPONDER SYSTEM |
| DE19893928573 DE3928573A1 (en) | 1988-08-31 | 1989-08-29 | RADIO WAVE ANSWER DEVICE DEVICE IN AN ANSWER SYSTEM |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63217483A JP2568429B2 (en) | 1988-08-31 | 1988-08-31 | Wireless transponder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02193091A JPH02193091A (en) | 1990-07-30 |
| JP2568429B2 true JP2568429B2 (en) | 1997-01-08 |
Family
ID=16704943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63217483A Expired - Fee Related JP2568429B2 (en) | 1988-08-31 | 1988-08-31 | Wireless transponder |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP2568429B2 (en) |
| DE (1) | DE3928573A1 (en) |
| FR (1) | FR2636188B1 (en) |
| GB (1) | GB2224183B (en) |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2074702C (en) * | 1991-07-29 | 1996-11-19 | Donald J. Urbas | Programmable transponder |
| DE4227551A1 (en) * | 1992-08-20 | 1994-02-24 | Eurosil Electronic Gmbh | Chip card with field strength detector |
| AU667144B2 (en) * | 1993-10-15 | 1996-03-07 | E-Lead Electronic Co., Ltd | Control circuit for control of peripheral equipment of wireless communication appliance |
| US5767792A (en) * | 1994-10-13 | 1998-06-16 | Bio Medic Data Systems Inc. | Method for calibrating a temperature sensing transponder |
| DE19538213B4 (en) * | 1994-10-13 | 2004-04-08 | Bio Medic Data Systems, Inc. | Passive transponder and method for calibrating a property sensor of a passive transponder |
| US5724030A (en) * | 1994-10-13 | 1998-03-03 | Bio Medic Data Systems, Inc. | System monitoring reprogrammable implantable transponder |
| DE4442677A1 (en) * | 1994-11-30 | 1996-06-05 | Siemens Ag | Electricity user power supply method |
| ATE179817T1 (en) * | 1994-12-13 | 1999-05-15 | Valtac Alex Beaud | OPTOELECTRONIC LABEL WITH INTERNAL TIME BASE |
| GB9505350D0 (en) * | 1995-03-16 | 1995-05-03 | British Tech Group | Electronic identification system |
| DE19617251C2 (en) * | 1996-04-30 | 1998-05-28 | Telefunken Microelectron | Data transmission system |
| DE19653409C2 (en) * | 1996-12-20 | 2001-05-03 | Claudia Weber | Mobile, machine-readable information carrier |
| AU2001217746A1 (en) | 1998-05-14 | 2002-05-27 | Calypso Medical, Inc. | Systems and methods for locating and defining a target location within a human body |
| DE19832628C2 (en) * | 1998-07-21 | 2000-10-12 | Daimler Chrysler Ag | Transponder arrangement |
| EP0977144A1 (en) * | 1998-07-29 | 2000-02-02 | Siemens Aktiengesellschaft | Data carrier with a lockable clock signal and method for generating a clock signal in a data carrier |
| WO2001029783A2 (en) * | 1999-10-20 | 2001-04-26 | Design Solutions Kwazulu-Natal Cc | Machine monitor |
| DE10064393A1 (en) * | 2000-12-21 | 2002-07-11 | Axel Schmidt | transponder |
| GB0102882D0 (en) * | 2001-02-06 | 2001-03-21 | Koninkl Philips Electronics Nv | Signalling system and a transport for use in the system |
| FR2835328B1 (en) * | 2002-01-31 | 2005-04-08 | St Microelectronics Sa | CIRCUIT FOR STARTING AND PROTECTING AGAINST FAULT VOLTAGES FOR A CONTACTLESS CIRCUIT |
| DE10356259B4 (en) * | 2003-12-03 | 2010-07-22 | Atmel Automotive Gmbh | Method and circuit arrangement for increasing a functional range in a device supplied with energy from an electromagnetic field |
| DE102006004805A1 (en) | 2006-01-24 | 2007-08-02 | Vodafone Holding Gmbh | Information carrier with means for contactless reading |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL81401C (en) * | 1949-09-19 | |||
| GB1358687A (en) * | 1971-08-24 | 1974-07-03 | Plessey Co Ltd | Power supply systems |
| US4364043A (en) * | 1979-05-30 | 1982-12-14 | The University Of Adelaide | Efficient object identification system |
| DE3009179A1 (en) * | 1980-03-11 | 1981-09-24 | Brown, Boveri & Cie Ag, 6800 Mannheim | METHOD AND DEVICE FOR GENERATING THE REPLY SIGNAL OF A DEVICE FOR AUTOMATICALLY IDENTIFYING OBJECTS AND / OR LIVING BEINGS |
| US4463353A (en) * | 1981-08-17 | 1984-07-31 | Ralston Purina Company | Animal feeding and monitoring system |
| GB8420893D0 (en) * | 1984-08-16 | 1984-09-19 | Buttemer D A | Transponder |
| GB8509135D0 (en) * | 1985-04-10 | 1985-05-15 | Gen Electric Co Plc | Transaction system |
| DE3628583C2 (en) * | 1986-08-22 | 1993-12-09 | Licentia Gmbh | Receiving device for microwave signals |
| JPS6410190A (en) * | 1987-07-02 | 1989-01-13 | Fuji Electric Co Ltd | Response exchange system for transponder system |
| EP0301127B1 (en) * | 1987-07-31 | 1993-12-01 | Texas Instruments Deutschland Gmbh | Transponder arrangement |
-
1988
- 1988-08-31 JP JP63217483A patent/JP2568429B2/en not_active Expired - Fee Related
-
1989
- 1989-08-24 GB GB8919240A patent/GB2224183B/en not_active Expired - Lifetime
- 1989-08-25 FR FR8911266A patent/FR2636188B1/en not_active Expired - Fee Related
- 1989-08-29 DE DE19893928573 patent/DE3928573A1/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| DE3928573C2 (en) | 1992-09-24 |
| GB2224183A (en) | 1990-04-25 |
| JPH02193091A (en) | 1990-07-30 |
| FR2636188B1 (en) | 1994-11-18 |
| FR2636188A1 (en) | 1990-03-09 |
| GB2224183B (en) | 1992-12-23 |
| DE3928573A1 (en) | 1990-03-08 |
| GB8919240D0 (en) | 1989-10-04 |
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