WO2012081125A1 - 子局ターミナル - Google Patents
子局ターミナル Download PDFInfo
- Publication number
- WO2012081125A1 WO2012081125A1 PCT/JP2010/072798 JP2010072798W WO2012081125A1 WO 2012081125 A1 WO2012081125 A1 WO 2012081125A1 JP 2010072798 W JP2010072798 W JP 2010072798W WO 2012081125 A1 WO2012081125 A1 WO 2012081125A1
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- WO
- WIPO (PCT)
- Prior art keywords
- electromotive force
- unit
- slave station
- terminal
- station terminal
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2209/00—Arrangements in telecontrol or telemetry systems
- H04Q2209/80—Arrangements in the sub-station, i.e. sensing device
- H04Q2209/86—Performing a diagnostic of the sensing device
Definitions
- the present invention reads and writes unique identification information (hereinafter referred to as unique identification information) necessary for transmission of control / monitoring signals to and from a master station via a common data signal line even when a failure occurs.
- unique identification information This is related to the slave station terminal that can be used.
- the common data signal line is a signal line in which a plurality of slave station terminals are connected in parallel, and a master station is connected in parallel to the plurality of slave stations.
- Japanese Patent Laid-Open No. 2002-271878 discloses a control / monitoring signal including a master station connected to a control unit and a data signal line, and a plurality of slave stations connected to the data signal line and a corresponding controlled device.
- a transmission system is disclosed.
- each conventional slave station terminal is provided with a switch mechanism for mechanically setting unique identification information.
- a method has been proposed in which a storage device is mounted on the slave station terminal and the unique identification information is stored from the outside or in advance in the storage device.
- the method of storing the unique identification information in the storage device mounted on the slave station terminal has a problem that the unique identification information cannot be read / written when the slave station terminal does not operate normally.
- an object of the present invention is to provide a slave station terminal that enables reading and writing of unique identification information even when a malfunction occurs that prevents the slave station terminal from operating normally.
- a first slave station terminal includes an information providing unit including an electromotive force generation unit, a storage unit, and an arithmetic processing unit that operates by the electromotive force generated by the electromotive force generation unit,
- the unique identification information stored in the means is exchanged with a separate terminal device.
- the unique identification information may be delivered to the terminal device in response to a response request signal superimposed on the electromotive force generation medium.
- the electromotive force generating medium is, for example, light when a solar cell is employed as an electromotive force generating means, magnetic field when an induction coil is employed, and electromagnetic wave when an electric antenna is employed, Each corresponds.
- a second slave station terminal includes an information adding unit including an electromotive force generation unit, a storage unit, and an arithmetic processing unit that operates by the electromotive force generated by the electromotive force generation unit, and requests a response.
- a notification response to the signal is made.
- the notification response may be made to the response request signal superimposed on the electromotive force generation medium.
- the unique identification information can be read / written. In other words, the unique identification information can be read / written even when a malfunction occurs such that the slave station terminal does not operate normally.
- the unique identification information read method is preferably a method in which the unique identification information is delivered to the terminal device in response to a response request signal from the terminal device.
- a response request signal can be superimposed on the electromotive force generation medium.
- the delivery of unique identification information in the first slave station terminal is used as a notification response so that the slave station terminal does not operate normally. Even when a malfunction occurs, the unique identification information can be extracted without using a terminal device separate from the slave station terminal by causing only the information adding unit to function. If light, magnetism, or electromagnetic waves are used as the electromotive force generation medium, a response request signal may be superimposed on the electromotive force generation medium as in the case of the first slave station terminal. it can.
- mobile_unit terminal which concerns on this invention. It is a block diagram of the control and monitoring signal transmission system in which the same slave station terminal is used. It is a block diagram of a terminal device. It is a time chart of the response request signal superimposed on the light used as the electromotive force generation medium. It is a block diagram of the other Example of a slave station terminal. It is a block diagram of the terminal device corresponding to the slave station terminal shown in FIG. It is a time chart of the response request signal superimposed on the electromagnetic wave used as the electromotive force generation medium. It is a block diagram of further another embodiment of the slave station terminal. It is a block diagram of the terminal device corresponding to the slave station terminal shown in FIG.
- the control / monitor signal transmission system is for controlling a controlled device 1 that is arranged away from the control unit 5.
- a parent station 4 is connected to the control unit 5, and common data signal lines DP and DN (hereinafter referred to as common data signal lines DP and DN) are connected to the parent station 4.
- Each of the plurality of slave station terminals 2 is arranged corresponding to each controlled device 1 and connected to the common data signal lines DP and DN.
- the control unit 5 is a computer or the like, and includes an output unit 51 that sends out control data 53 and an input unit 52 that receives monitoring data 54 related to the operation of the controlled apparatus 1.
- the output unit 51 and the input unit 52 are connected to the master station 4.
- the master station 4 hands over the monitoring data 54 of the signals (monitoring data signals) sent from the slave station terminal 2 to the common data signal lines DP and DN to the control unit 5 and a series of pulse signals based on a predetermined timing signal. And sends this signal to the common data signal lines DP and DN.
- a series of pulse signals transmitted to the common data signal lines DP and DN are referred to as transmission clock signals.
- the controlled device 1 includes a controlled unit 11 and a sensor unit 12 that monitors the controlled unit 11.
- Examples of the controlled unit 11 and the sensor unit 12 include, but are not limited to, an actuator and a magnetic sensor that detects the amount of magnetism of a magnet incorporated in a predetermined position of the cylinder rod.
- Other configurations such as an extraction instruction display and an extraction completion lever on the parts shelf may be employed.
- the slave station terminal 2 includes an MCU 21 that is a microcomputer control unit as an internal circuit, and further includes an information adding unit 3 that operates independently of the MCU 21.
- the MCU 21 includes a CPU, a RAM, and a FROM.
- a program necessary for a series of processing performed in the slave station terminal 2 and the slave station terminal 2 delivered from the information adding unit 3 are provided.
- Unique identification information such as address information, model information, specification information, etc. is stored.
- the RAM stores detection data obtained from the sensor unit 12 via the terminal IND. Then, processing for obtaining information necessary for detection is performed using the arithmetic function of the CPU.
- FROM is a rewritable nonvolatile memory.
- the processing in the MCU 21 will be described. First, the addresses assigned for each cycle of the transmission clock signals of the common data signal lines DP and DN input from the input terminal CK are counted. Then, when the data value obtained by the count (hereinafter referred to as an address count value) matches the local station address that is one of the unique identification information, the MCU 21 holds it in the RAM according to the timing of the transmission clock signal. A signal corresponding to the detected data is output from the output terminal OUT to the base of the transistor TR as the superimposition timing of the monitoring data signal of the local station.
- the transistor TR is turned on, the current flows, the voltage drops, and the voltage level is 0V.
- the signal is transmitted to the common data signal lines DP and DN. Further, the MCU 21 outputs a signal corresponding to the control data 53 obtained at the timing of the transmission clock signal whose address count value matches the own station address to the controlled unit 11 via the parallel output terminal OUTD.
- the information assigning unit 3 has an MCU 31 as a microcomputer control unit as a core, and includes a solar cell 32 as an electromotive force generating means and a light projecting element 33 as an optical signal transmitting means.
- the solar cell 32 extracts a circuit that supplies the electromotive force generated by the light projection from the terminal device 6 to the MCU 31 via the input terminal Vcm, and a response request signal superimposed on the light projection from the terminal device 6. And connected to a circuit delivered to the MCU 31 via the input terminal CKm.
- the light projecting element 33 is connected to the output terminal LEm of the MCU 31 and emits a light projecting signal.
- the MCU 31 functions as an arithmetic processing unit that operates by the electromotive force of the solar battery 32 and functions as a storage unit that stores unique identification information such as address information, model information, and specification information related to the slave station terminal 2. It has become. Similar to the MCU 21, the CPU includes a RAM, a FROM, and the FROM stores unique identification information and a program necessary for a series of processes for emitting the unique identification information as a projection signal. And when MCU21 does not operate
- the terminal device 6 to which the unique identification information is transferred from the information adding unit 3 also has a function of writing the unique identification information. That is, the terminal device 6 has a function of reading and writing the unique identification information.
- MCU65 which performs.
- the light projecting unit 61 of the terminal device 6 generates light that is an electromotive force generating medium in the information providing unit 3 of the slave station terminal 2, and the light of the projector unit 61 is used as a solar cell of the slave station terminal 2. By making it enter into 32, the electromotive force for operating MCU31 of the information provision part 3 in the slave station terminal 2 can be generated. At this time, the light projecting unit 61 has intensity of illuminance corresponding to a signal from the output terminal LEC of the MCU 65, and a response request signal representing a data value is superimposed on the intensity.
- FIG. 4 is a time chart of a signal superimposed on the light projection of the light projecting unit 61.
- a pulse signal having a voltage value of 2 (expressed as VH and VL in this embodiment) is output to the output terminal LEC
- the illuminance of light projection of the light projecting unit 61 corresponds to VH and VL.
- a pulse signal is formed by the change in illuminance.
- an electromotive force is generated according to the illuminance of the light projection from the light projecting unit 61 incident on the solar cell 32, so that it is superimposed on the light projection based on the voltage value of the electromotive force.
- a signal can be extracted.
- the signal data value can be expressed, for example, by changing the duty ratio of one pulse cycle (ratio of the period corresponding to VH and the period corresponding to VL in FIG. 4).
- the data value is shown by associating “1” and “0” in the case of A where the rise of the period corresponding to VH is early and the case of late B, respectively.
- a pulse signal having a cycle length different from the pulse cycle of the data signal is superimposed as a start signal indicating the start of the data signal before the data signal.
- the response request signal extracted from the electromotive force is input to the MCU 31. Then, the MCU 31 performs processing according to this response request signal. Therefore, when writing the unique identification information, if a command indicating a write instruction is input from the input unit 63 and subsequently a data value to be written as the unique identification information in the FROM of the MCU 31 is input, the write instruction is received. In the MCU 31, the subsequent data value is written in the FROM as unique identification information. On the other hand, when reading the unique identification information, a command indicating reading is input from the input unit 63. Upon receiving the read instruction, the MCU 31 transmits a light projection signal including unique identification information from the light projection element 33 via the output terminal LEm.
- the light receiving unit 62 of the terminal device 6 receives this light projection signal, extracts the unique identification information therefrom, and inputs it to the MCU 65 via the input terminal INC. Since the unique identification information input to the MCU 65 is displayed on the display unit 64, the unique identification information can be confirmed.
- Electromagnetic waves may be used instead of light for the electromotive force generation medium.
- FIG. 5 shows an embodiment of a slave station terminal that uses an electromagnetic wave as an electromotive force generating medium and employs an induction coil as an electromotive force generating means.
- FIG. 6 shows a terminal apparatus corresponding to the slave station terminal shown in FIG. 5 and FIG. 6, the same reference numerals are given to substantially the same parts as those in the embodiment shown in FIGS. 1 to 4, and the description will be omitted or simplified.
- the information providing unit 3 of the slave station terminal 28 includes an induction coil 34 that is an electromotive force generating means.
- the electromotive force generated in the induction coil 34 by the magnetic field generated by the terminal device 68 is supplied to the MCU 31 via the input terminal Vcm, and a response request signal superimposed on the magnetic field generated by the terminal device 68 is generated. It is extracted and delivered to the MCU 31 via the input terminal CKm.
- the terminal device 68 corresponding to the slave station terminal 28 has a function of reading and writing the unique identification information. As shown in FIG.
- the light receiving unit 62, the input unit 63, the display unit 64, and the MCU 65 that controls these units are configured.
- the magnetic field generator 66 generates a magnetic field by a high-frequency voltage that is amplified according to a signal from the output terminal LEC of the MCU 65, and a response request signal that represents a data value is superimposed on the length of the magnetic field generation period. It has become.
- FIG. 7 is a time chart of signals superimposed on the magnetic field of the magnetic field generator 66.
- the voltage that generates this electromotive force is a high-frequency pulse voltage signal as shown in the upper part of FIG.
- This high-frequency pulse voltage signal is converted into a DC signal by the rectifier circuit 35.
- a pulse signal as shown in the lower part of FIG. 7 is obtained and input to the MCU 31 via the input terminal Ckm.
- the pulse signal input to the MCU 31 is one cycle that is the sum of the magnetic field generation period and the magnetic field non-generation period, and is superimposed on the magnetic field based on the length of the magnetic field generation period (high potential VH period). Signal can be extracted. For example, in the example of FIG.
- the response request signal may be delivered in a form independent of the electromotive force generation medium.
- FIG. 8 shows an embodiment of a slave station terminal that receives a response request signal in a form independent of an electromotive force generation medium.
- FIG. 9 shows a terminal device corresponding to the slave station terminal shown in FIG. 8 and 9, the same reference numerals are given to substantially the same parts as those in the embodiment shown in FIGS. 1 to 4 and the embodiment shown in FIGS. 5 to 7, and the description will be omitted or simplified.
- the information providing unit 3 of the slave station terminal 29 includes an induction coil 34 that is an electromotive force generating unit and a light receiving unit 36.
- the electromotive force generated in the induction coil 34 by the magnetic field generated by the terminal device 69 is supplied to the MCU 31 via the input terminal Vcm.
- the light receiving means 36 receives a response request signal transmitted as an optical signal from the terminal device 69 and delivers it to the MCU 31 via the input terminal CKm.
- the terminal device 69 corresponding to the slave station terminal 29 has a function of reading and writing the unique identification information, similar to the terminal devices 6 and 68 described above. As shown in FIG.
- the signal is delivered to the slave station terminal 29 in a form independent of the electromotive force generation medium.
- the unique identification information is handed over to the terminal devices 6, 68, and 69.
- This is a notification response to the response request signal.
- the MCU 31 collates the unique identification information included in the response request signal with the unique identification information stored in the own station. If both match, the light projecting element 33 is turned on as a notification response to the response request signal. However, in this case, the light emitted from the light projecting element 33 does not need to include the unique identification information, and any light may be displayed as long as there is some response.
- the notification response method is not limited to lighting of the display element 33. Any other method (such as sound) can be adopted as long as it operates by the electromotive force generated by the information providing unit 3 and can be recognized by the sender of the response request signal.
- both the output of a signal corresponding to the control data 53 obtained at the timing of the transmission clock signal to the controlled unit 11 and the reception of the monitoring signal from the sensor unit 12 are performed.
- one terminal may perform only one of the processes.
- two types of terminals may be used: a slave station output terminal that performs only control data output processing to the controlled unit 11 and a slave station input terminal that performs only monitoring data reception processing from the sensor unit 12.
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- Computer Networks & Wireless Communication (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Selective Calling Equipment (AREA)
Abstract
Description
まず、子局ターミナルが使用されている制御・監視信号伝送システムの構成について説明する。この制御・監視信号伝送システムは、図2に示すように、制御部5から隔れて配置されている被制御装置1を制御するためのものとなっている。制御部5には親局4が接続され、更に、親局4には共通のデータ信号線DP、DN(以下、共通データ信号線DP、DNとする)が接続されている。そして、子局ターミナル2の複数の各々が、被制御装置1の各々に対応して配置されるとともに、共通データ信号線DP、DNに接続されている。
2、28、29 子局ターミナル
3 情報付与部
4 親局
5 制御部
6、68、69 端末装置
11 被制御部
12 センサ部
21、31、65 MCU
32 太陽電池
33 投光素子
34 誘導コイル
35 整流回路
51 出力ユニット
52 入力ユニット
53 制御データ
54 監視データ
61 投光部
62 受光部
63 入力部
64 表示部
66 磁界発生部
Claims (4)
- 起電力発生手段と、記憶手段と、前記起電力発生手段で発生した起電力で動作する演算処理手段を備えた情報付与部を内包し、前記記憶手段の固有識別情報が、別体の端末装置でリードライトされることを特徴とする子局ターミナル。
- 前記起電力の発生媒体に重畳されている応答要請信号に応じて、前記固有識別情報を前記端末装置に引き渡す請求項1に記載の子局ターミナル。
- 起電力発生手段と、記憶手段と、前記起電力発生手段で発生した起電力で動作する演算処理手段を備えた情報付与部を内包し、応答要請信号への報知応答をすることを特徴とする子局ターミナル。
- 前記報知応答は、前記起電力の発生媒体に重畳されている前記応答要請信号に対しなされる請求項3に記載の子局ターミナル。
Priority Applications (2)
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JP2012548602A JPWO2012081125A1 (ja) | 2010-12-17 | 2010-12-17 | 子局ターミナル |
PCT/JP2010/072798 WO2012081125A1 (ja) | 2010-12-17 | 2010-12-17 | 子局ターミナル |
Applications Claiming Priority (1)
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PCT/JP2010/072798 WO2012081125A1 (ja) | 2010-12-17 | 2010-12-17 | 子局ターミナル |
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WO2012081125A1 true WO2012081125A1 (ja) | 2012-06-21 |
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PCT/JP2010/072798 WO2012081125A1 (ja) | 2010-12-17 | 2010-12-17 | 子局ターミナル |
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WO (1) | WO2012081125A1 (ja) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004007182A (ja) * | 2002-05-31 | 2004-01-08 | Denso Corp | 通信端末の設定方法及び通信端末 |
JP2004265176A (ja) * | 2003-03-03 | 2004-09-24 | Toppan Printing Co Ltd | Icカード及びその情報表示方法 |
JP2007072706A (ja) * | 2005-09-06 | 2007-03-22 | Dainippon Printing Co Ltd | Simホルダー |
JP2009181332A (ja) * | 2008-01-30 | 2009-08-13 | Sony Corp | 記憶媒体並びに競合制御方法 |
-
2010
- 2010-12-17 WO PCT/JP2010/072798 patent/WO2012081125A1/ja active Application Filing
- 2010-12-17 JP JP2012548602A patent/JPWO2012081125A1/ja active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004007182A (ja) * | 2002-05-31 | 2004-01-08 | Denso Corp | 通信端末の設定方法及び通信端末 |
JP2004265176A (ja) * | 2003-03-03 | 2004-09-24 | Toppan Printing Co Ltd | Icカード及びその情報表示方法 |
JP2007072706A (ja) * | 2005-09-06 | 2007-03-22 | Dainippon Printing Co Ltd | Simホルダー |
JP2009181332A (ja) * | 2008-01-30 | 2009-08-13 | Sony Corp | 記憶媒体並びに競合制御方法 |
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