JPWO2012059965A1 - Unique identification information setting structure and slave station terminal and information providing device used for the structure - Google Patents

Abstract

Unique identification information setting structure that facilitates setting operation and confirmation operation of unique identification information of a slave station terminal, and enables extraction of unique identification information even when the slave station terminal does not operate normally And a slave station terminal and an information providing device used for the structure. In the first unique identification information setting structure according to the present invention, an information providing unit including a storage unit, an antenna, and an arithmetic processing unit that operates with electric power of an electromagnetic wave received by the antenna includes the storage unit. Is attached to the slave station terminal corresponding to the unique identification information stored in the terminal. And the said information provision part delivers the said specific identification information to the terminal device different from the said slave station terminal and the said slave station terminal. In the second unique identification information setting structure according to the present invention, the information providing unit in the first unique identification information setting structure is detachably attached to the slave station terminal, and the unique identification information is displayed so as to be visible. [Selection] Figure 1

Description

  The present invention provides identification information unique to each slave station terminal required for signal transmission to a slave station terminal that transmits control and monitoring signals to and from the master station via a common data signal line ( The following description relates to a structure for setting unique identification information), a slave station terminal used for the structure, and an information providing apparatus. 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.

  In a control system having a single control unit and a plurality of controlled devices (consisting of a controlled unit that operates in response to an instruction from the control unit and a sensor unit that transmits information to the control unit), the number of wires There is wiring-saving technology to reduce For example, 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.

  In the above control / monitor signal transmission system, a signal transmission method in which one (1 bit) control signal or sensor signal (input signal from a controlled device) corresponding to each clock is superimposed on a clock signal line including a power source. Is adopted. On the other hand, since the input / output signals in the control unit and the controlled device are usually in parallel format, it is necessary to convert these parallel format signals into serial format signals. Therefore, a master station that performs parallel / serial conversion of input / output signals in the control unit and a slave station that performs parallel / serial conversion of input / output signals in the controlled device are arranged.

JP 2002-271878 A

  In a conventional system including the control / monitor signal transmission system, unique identification information of each slave station terminal, for example, an address value, is required for signal transmission. Therefore, each conventional slave station terminal is provided with a switch mechanism for mechanically setting unique identification information.

  However, in the current situation where miniaturization of the slave station terminal is required, when the unique identification information is set mechanically, the size of the switch mechanism needs to be miniaturized according to the size of the slave station. There was a problem that it was extremely difficult to see.

  In order to deal with such a problem, a method in which a storage device is mounted on the slave station terminal and the unique identification information is stored in the storage device from the outside or in advance can be considered. However, in the method of storing the unique identification information in the storage device mounted on the slave station terminal, there is a problem that the unique identification information cannot be extracted when the slave station terminal does not operate normally.

  Therefore, the present invention facilitates the setting operation and confirmation operation of the unique identification information of the slave station terminal, and also enables unique identification information to be extracted even when the slave station terminal does not operate normally. It is an object of the present invention to provide an information setting structure, a slave station terminal used in the structure, and an information providing apparatus.

  In the first unique identification information setting structure according to the present invention, an information providing unit including a storage unit, an antenna, and an arithmetic processing unit that operates with power of an electromagnetic wave received by the antenna is stored in the storage unit. It is attached to the slave station terminal corresponding to the unique identification information. And the said information provision part hands over the said specific identification information to the said terminal station separate from the said slave station terminal and the said slave station terminal.

  The slave station terminal may include reading means for receiving and receiving the unique identification information by exchanging electromagnetic waves with the information providing unit.

  The storage means may include connection means for making a wired connection to an internal circuit of the slave station terminal.

  The information providing unit may include notification response means that operates with the power, and may make a notification response to a response request signal including the unique identification information.

  In the second unique identification information setting structure according to the present invention, an information providing unit including a storage unit is detachably attached to a slave station terminal corresponding to the unique identification information stored in the storage unit, and the unique identification is performed. Display information in a visible manner.

  In the second unique identification information setting structure according to the present invention, the storage means may be a switch structure including a plurality of arrays.

  The first slave station terminal according to the present invention includes an information providing unit including a storage unit, an antenna, and an arithmetic processing unit that operates with power of an electromagnetic wave received by the antenna. And the said information provision part delivers the said specific identification information to the terminal device different from the said slave station terminal.

  The first slave station terminal according to the present invention may comprise reading means for receiving and receiving the unique identification information by exchanging electromagnetic waves with the information giving section, or an internal circuit and the storage means are connected by wire. It may be a thing. Further, the information providing unit may be removable.

  In the second slave station terminal according to the present invention, an information providing unit having storage means for unique identification information is detachably attached, and the unique identification information is displayed in a visible manner. The storage unit may have a switch structure including a plurality of arrays.

  A first information providing apparatus according to the present invention includes a storage unit, an antenna, and an arithmetic processing unit that operates with electric power of an electromagnetic wave received by the antenna, and the storage unit stores a unique identification stored in the storage unit. It has connection means for wired connection to the internal circuit of the slave station terminal corresponding to the information.

  The second information providing apparatus according to the present invention comprises storage means, an antenna, arithmetic processing means that operates with power of electromagnetic waves received by the antenna, and notification response means that operates with the power, and the unique identification information. A notification response to a response request signal including

  A third information providing apparatus according to the present invention comprises storage means and connection means for wired connection to a slave station terminal corresponding to the unique identification information stored in the storage means, and displays the unique identification information so as to be visible. To do.

  According to the first unique identification information setting structure according to the present invention, the information giving unit attached to the slave station terminal delivers the unique identification information stored in the storage means to the slave station terminal. The unique identification information for the slave station terminal can be easily set only by attaching to the slave station terminal. Further, since the information providing unit delivers the unique identification information to the terminal device separate from the slave station terminal, the unique identification information can be easily confirmed using the terminal separate from the slave station terminal. . Furthermore, even when the slave station terminal does not operate normally, the unique identification information can be extracted by using a terminal device separate from the slave station terminal.

  Delivery of the unique identification information from the information providing unit to the slave station terminal may be performed without contact or may be performed with contact. In other words, if the slave station terminal is provided with reading means for exchanging electromagnetic waves with the information adding unit and receiving the unique identification information, it is performed without contact. In this case, a known IC tag is used as the information adding unit. There is an advantage that can be diverted. In addition, if the storage means of the information adding unit has a connection means for wired connection to the internal circuit of the slave station terminal, the unique identification information is handed over by wired connection, and the conventional slave station terminal There is an advantage that the present invention can be applied with a slight change without adding a complicated communication circuit.

  In addition, if the information adding unit includes notification response means that operates with the power of the electromagnetic wave received by the antenna and performs a notification response to the response request signal including the unique identification information, the response request signal from the terminal device or the like It is possible to check the unique identification information very easily only by issuing.

  The second unique identification information setting structure according to the present invention displays the unique identification information of the information adding unit in the first unique identification information setting structure in a visually recognizable manner. The information is displayed so as to be visible without handing over the information. Similar to the first unique identification information setting structure, it is possible to easily set the unique identification information for the slave station terminal by simply attaching the information grant unit to the slave station terminal. Identification information can be easily confirmed. Furthermore, even when the slave station terminal does not operate normally, it is possible to remove and extract the unique identification information. As the storage means for displaying the unique identification information so as to be visible, for example, a switch structure including a plurality of arrays is suitable.

  The information adding unit may be separate from the slave station terminal, or may be integrated with the slave station terminal. Note that the slave station terminal according to the present invention is an integrated information adding unit.

  Even if the information providing unit is integrated with the slave station terminal, it is preferable that the information grant unit is detachable from the slave station terminal. In this case, the information grant unit can be easily exchanged. Further, when a rewritable device is employed as the storage unit of the information adding unit, the information adding unit can be removed from the slave station terminal and the unique identification information can be rewritten at a place with good workability. For this reason, in addition to easy setting of the unique identification information, correction work can be easily performed.

  A first information providing apparatus according to the present invention includes a storage unit, an antenna, and an arithmetic processing unit that operates with the power of an electromagnetic wave received by the antenna. The storage unit corresponds to the unique identification information stored in the storage unit. Therefore, the unique identification information setting structure according to the present invention is suitable when the conventional slave station terminal is applied with only a slight improvement.

  In addition, a second information providing apparatus according to the present invention includes a storage unit, an antenna, an arithmetic processing unit that operates with the power of the electromagnetic wave received by the antenna, and a notification response unit that operates with the power. Since the notification response to the response request signal including the identification information is made, it is suitable in particular when confirmation of the unique identification information is important in addition to facilitating the setting operation of the unique identification information of the slave station terminal.

  Furthermore, the third information providing apparatus according to the present invention can be applied to the unique identification information setting structure according to the present invention while having a simple structure using a known switch structure.

It is a block diagram of the Example of the slave station terminal which has the specific identification information setting structure based 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 block diagram of the other Example of a slave station terminal. It is a block diagram of further another embodiment of the slave station terminal.

With reference to FIGS. 1 to 3, an embodiment of the first slave station terminal adopting the first unique identification information setting structure according to the present invention will be described.
First, the configuration of a control / monitor signal transmission system in which a slave station terminal is used will be described. As shown in FIG. 2, 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 further, 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 device. The output unit 51 and the input unit 52 are connected to the master station 4.

  The master station 4 delivers the monitoring data 54 of the monitoring signal sent from the slave station terminal 2 to the control unit 5 and generates a series of pulse signals based on a predetermined timing signal, and this signal is transmitted to the common data signal line DP. , Sent to DN. Hereinafter, 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 has a card slot (not shown) in the casing. An IC tag 3 corresponding to the information providing unit of the present invention is detachably inserted into this card slot. The slave station terminal 2 includes a reading unit 21 for the IC tag 3, and further includes an MCU 23 that is a microcomputer control unit as an internal circuit.

  The IC tag 3 is a known product including an antenna 31 and an IC chip 32. The IC chip 32 functions as an arithmetic processing unit that operates with the power of the electromagnetic wave received by the antenna 31, 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 something that fulfills.

  The reading means 21 has an induction antenna 22, exchanges electromagnetic waves with the IC tag 3, and receives unique identification information stored in the IC chip 32. Further, the reading means 21 is connected to the input / output unit SIO of the MCU 23 and delivers the unique identification information obtained from the IC tag 3 to the MCU 23. If the IC chip 32 that allows the data to be rewritten is adopted as the IC tag 3, the data output from the MCU 23 can be written to the IC chip 32 via the reading means 21. Yes. In FIG. 1, an arrow line between the induction antenna 22 of the reading unit 21 and the antenna 31 of the IC tag 3 represents transmission / reception of electromagnetic waves.

  As shown in FIG. 1, the MCU 23 includes a CPU, a RAM, and a FROM, in which a program necessary for a series of processes performed at the slave station terminal 2 and unique identification information delivered from the reading means 21 are stored. The 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. However, FROM is a rewritable nonvolatile memory.

  The processing in the MCU 23 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 own station address, which is one of the unique identification information, the MCU 23 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 superposition timing of the monitoring data signal of the local station. Specifically, if the detection data is “on” (content indicating that the sensor unit 12 has detected the detection target), 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 23 outputs a signal corresponding to the control data 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 unique identification information stored in the IC chip 32 of the IC tag 3 can be confirmed by the terminal device 6 separate from the slave station terminal 2. The terminal device 6 includes an induction antenna 61, an input unit 62, and a display unit 63, and also includes an MCU 65 that performs these controls. In addition, since these structures can be comprised by well-known components and circuits, detailed description is abbreviate | omitted and hereafter, the method of confirming the solid identification information of the slave station terminal 2 using this terminal device 6 Will be described.

  In order to confirm the individual identification information of the slave station terminal 2 using the terminal device 6 shown in FIG. 3, it is only necessary to arrange the entire terminal device 6 facing the slave station terminal 2. At this time, the induction antenna 61 exchanges electromagnetic waves with the antenna 31 of the IC tag 3 and receives the unique identification information. In FIG. 1, an arrow line between the terminal device 6 and the antenna 31 of the IC tag 3 represents transmission / reception of electromagnetic waves. Since the received information is displayed on the display unit 63 via the MCU 65, the unique identification information can be confirmed very easily. Moreover, since the IC chip 32 of the IC tag 3 operates with the power of the electromagnetic wave emitted from the induction antenna 61 of the terminal device 6, the unique identification information is extracted even when the slave station terminal 2 does not operate normally. It becomes possible.

  The IC tag 3 also includes a display element 33 as notification response means. The display element 33 operates with the power of the electromagnetic wave received by the antenna 31, and the unique identification information can be confirmed using the response by the display element 33. In that case, first, the unique identification information of the slave station terminal 2 to be confirmed is input from the input unit 62 of the terminal device 6, and then the entire apparatus is arranged facing the slave station terminal 2. At this time, the electromagnetic wave emitted from the induction antenna 61 becomes a response request signal including unique identification information. In the IC tag 3 that has received the response request signal, the IC chip 32 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 display element 33 is turned on as a notification response to the response request signal. Similar to the IC chip 32, the display element 33 operates with the power of the electromagnetic wave emitted from the induction antenna 61 of the terminal device 6. Therefore, even when the slave station terminal 2 does not operate normally, confirmation of the unique identification information is performed. Can be performed.

  Note that the method of notification response to the response request signal is not limited to lighting of the display element 33. Other techniques (such as sound) can be employed as long as they operate with the power of electromagnetic waves emitted from the induction antenna 61 of the terminal device 6 and can be recognized by the operator.

  If the IC chip 32 that allows the IC chip 32 to rewrite data is used, the terminal device 6 can be used to write the unique identification information. In that case, the unique identification information to be rewritten may be input from the input unit 62 of the terminal device 6. At this time, since the IC tag 3 can be removed from the slave station terminal 2 and the unique identification information can be rewritten in a place with good workability, the unique identification information can be easily corrected.

  Further, if the IC tag 3 having a connection means for wired connection to the internal circuit of the slave station terminal 2 is adopted, the reading means 21 of the slave station terminal 2 can be omitted. FIG. 4 shows an embodiment in which the IC tag and the internal circuit of the slave station terminal are connected by wire. In FIG. 4, parts that are substantially the same as those in the embodiment shown in FIGS. 1 to 3 are given the same reference numerals, and descriptions thereof are omitted or simplified.

  This slave station terminal 20 is provided with a holder (not shown) outside the casing. The IC tag 30 is detachably accommodated in the holder. A signal line 34 different from the antenna 31 extends from the IC chip 32 included in the IC tag 30, and an end portion of the signal line 34 is connected to the slave station terminal 2 via a terminal provided in the housing of the slave station terminal 2. Connected to the MCU 23. The MCU 23 exchanges data with the IC chip 32 via the signal line 34. Since such a slave station terminal 20 can exchange unique identification information with the IC tag 30 without having a reading means, it can be diverted from a conventional slave station terminal with a slight improvement.

  In this embodiment, the IC tag 30 is attached to the outside of the housing of the slave station terminal 2, but is inserted into a card slot provided in the housing as in the embodiment shown in FIGS. It may be a thing. In this case, a terminal portion for connecting the signal line 34 of the IC tag 30 to the MCU 23 of the slave station terminal 2 may be provided inside the card slot.

  In the above embodiment, the IC tag 3 or the IC tag 30 is employed as the information providing unit of the present invention, but this can be replaced with a switch structure. FIG. 5 shows an embodiment in which the information providing unit has a switch structure. In FIG. 5, parts that are substantially the same as those in the embodiments shown in FIGS. 1 to 4 are denoted by the same reference numerals, and description thereof is omitted or simplified.

  The information adding unit 39 of the slave station terminal 29 shown in FIG. 5 includes a switch structure 38 that is detachable from the MCU 23. In this case, the unique identification information set by the switch structure 38 is transferred to the MCU 23 by wired connection. Although there is no function for passing the unique identification information to the terminal device 6 that is separate from the slave station terminal 29, the information set by the switch structure 38 may be used when the slave station terminal 29 is not operating normally. Even if it exists, this can be visually recognized. Furthermore, since the information providing unit 39 can be removed from the slave station terminal 29, these operations can be easily performed at a place with good workability for visual recognition and setting.

  In any of the above embodiments, both the output of the control data to the controlled unit 11 and the reception of the monitoring data from the sensor unit 12 are processed in one terminal. Only processing may be performed. For example, 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.

1 Controlled devices 2, 20, 29 Slave station terminals 3, 30 IC tag 4 Master station 5 Control unit 6 Terminal unit 11 Controlled unit 12 Sensor unit 21 Reading means 22, 61 Inductive antennas 23, 65 MCU
28 Address setting switch 31 Antenna 32 IC chip 33 Display element 38 Switch structure 39 Information giving unit 51 Output unit 52 Input unit 53 Control data 54 Monitoring data 62 Input unit 63 Display unit

Claims (16)

  An information providing unit including a storage unit, an antenna, and an arithmetic processing unit that operates with the power of the electromagnetic wave received by the antenna is attached to a slave station terminal corresponding to the unique identification information stored in the storage unit, A unique identification information setting structure, wherein the information assigning unit delivers the unique identification information to the slave station terminal and a terminal device separate from the slave station terminal.   The unique identification information setting structure according to claim 1, wherein the slave station terminal includes a reading unit that exchanges electromagnetic waves with the information adding unit and receives the unique identification information.   The unique identification information setting structure according to claim 1, wherein the information adding unit includes a connection unit that wire-connects the storage unit and an internal circuit of the slave station terminal.   4. The unique identification information setting structure according to claim 1, wherein the information adding unit includes notification response means that operates with the power, and makes a notification response to a response request signal including the unique identification information.   A unique identification characterized in that an information providing unit comprising a storage means is detachably attached to a slave station terminal corresponding to the unique identification information stored in the storage means, and displays the unique identification information so as to be visible. Information setting structure.   6. The unique identification information setting structure according to claim 5, wherein the storage means is a switch structure including a plurality of arrays.   Including a storage unit, an antenna, and an information providing unit including an arithmetic processing unit that operates with power of electromagnetic waves received by the antenna, the information providing unit is connected to the terminal device separate from the slave station terminal, A slave station terminal that delivers unique identification information.   The slave station terminal according to claim 7, further comprising a reading unit that exchanges electromagnetic waves with the information providing unit and receives the unique identification information.   The slave station terminal according to claim 7, wherein an internal circuit and the storage means are connected by wire.   The slave station terminal according to claim 7, 8, or 9, wherein the information providing unit is detachable.   A slave station terminal, characterized in that an information providing unit including storage means for unique identification information is detachably attached and displays the unique identification information so as to be visible.   The slave station terminal according to claim 11, wherein the storage unit has a switch structure including a plurality of arrays.   A storage means, an antenna, and an arithmetic processing means that operates with the power of the electromagnetic wave received by the antenna, the storage means for the internal circuit of the slave station terminal corresponding to the unique identification information stored in the storage means An information providing apparatus having connection means for wired connection.   A storage unit, an antenna, a calculation processing unit that operates with the power of the electromagnetic wave received by the antenna, and a notification response unit that operates with the power, and makes a notification response to the response request signal including the unique identification information An information providing device characterized by the above.   An information providing apparatus comprising: a storage unit; and a connection unit that connects to a slave station terminal corresponding to the unique identification information stored in the storage unit, and displays the unique identification information so as to be visible. The information storage device according to claim 15, wherein the storage unit has a switch structure including a plurality of arrays.

Images