JP2009098746A - Wireless telemeter system and connection terminal selection method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wireless telemeter system and a connection terminal selection method therein, allowing smooth connection work by previously restricting a relay or wireless master unit allowing connection with a wireless slave unit to prevent connection work with a terminal not allowing the connection. <P>SOLUTION: An identification code of a most system-upstream wireless master unit is previously registered in a wireless slave unit sub 4 not connected with a wireless master unit main 104 or relays 1-3, and all the wireless master units or all the relays allowing the connection with an unconnected wireless slave unit are collected based on a return telegram from a wireless master unit or a relay to a telegram including an identification code from the unconnected wireless slave unit. The identification code of the wireless master unit can be previously registered in the wireless slave unit itself or by an external setter or the like, and an input device such as a button of the wireless slave unit is operated to collect the wireless master unit or the relay allowing the connection from the wireless slave unit. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a terminal NCU and a wireless master device connected in series to a center NCU via a telephone network, a plurality of wireless slave devices that perform wireless communication with the wireless master device, the wireless master device, and the wireless slave device A wireless telemeter system including a wireless repeater arranged in a communication section between the wireless communication device and a microcomputer meter connected to each of the sub-wires, and exchange between the wireless master device and the wireless slave device in the system The present invention relates to an edge terminal selection method for an edge.

  In a radio telemeter system developed for gas, water, etc. meters, multiple repeaters are connected to a single wireless master unit (hereinafter referred to as “main”). Wireless handset (hereinafter referred to as sub). A single communication group is formed including the relays and subs under this one main unit.

  The conventional radio telemeter system developed for meters such as gas and water is a radio telemeter system according to the standard RCR / STD-T67. An example of such a radio telemeter system is also formally inherent in the block diagram shown in FIG. 1, and referring to this, a center side network control device (hereinafter referred to as “center NCU”) connected to the host computer 101 is referred to. 102), a terminal network control device (hereinafter referred to as “T-NCU”) 103 connected to the center 102 via a telephone network such as a public telephone line, and a main 104 connected to the T-NCU 103 by wire. One or more sub-106s that are wirelessly connected to the main 104 and capable of wireless communication with the main 104, and a microcomputer meter (hereinafter referred to as a meter) 107 such as electricity, gas, and water that is wired-connected to the sub-106. It is configured. In the radio telemeter system, a radio repeater 105 disposed in a communication section between the main 104 and the sub 106 may be provided.

  In such a radio telemeter system, when it is desired to add an unaffiliated sub to a group that has been once grouped, it is necessary to specify a main and a relay machine that are candidates for the association in advance. In addition, a terminal having a good wireless environment is searched for by checking each of these terminals by radio wave measurement, and a matching operation is performed with the terminal thus found.

  Even if you have specified the main candidate or repeater that is a candidate for marriage in advance, if you try to match with the specified main or repeater in the field, you may not be able to do so because of the poor radio wave environment. The main or relay machine to be matched must be searched again, and the matching work cannot be performed smoothly.

Wireless base station connected to host computer via terminal side network control device, communication line, and center side network control device as a wireless telemeter device intended for use in an environment with good reception conditions, and wireless connection to the wireless base device And one or more wireless slave devices each connected to a microcomputer meter. Each of the wireless master device and the wireless slave device is a wireless unit for data communication with a counterpart device, and a reception level output from the wireless unit. And a storage unit that stores the read reception level as a reception level measurement value, and efficiently arranges the wireless master unit and the wireless slave unit at a position with a high reception level for stable operation. What has been made possible has been proposed (Patent Document 1).
JP 2003-151062 A

  Therefore, in the wireless telemeter system and the edge terminal selection method in the wireless telemeter system, the problem is solved in that a terminal that is not capable of being joined by a wireless slave is removed from the target for obtaining information that preliminarily defines a repeater or a wireless master that can be joined. There are issues to be addressed.

  It is an object of the present invention to prevent a worker from performing a matching operation with a terminal that cannot be connected by previously limiting a relay device or a wireless master device to which the wireless slave device can be connected. Then, it is providing the radio | wireless telemeter system which makes it possible to perform a smooth edge work, and the edge terminal selection method in it.

In order to solve the above-described problem, in the radio telemeter system according to the present invention, the identification code of the most upstream radio base unit is pre-registered in the radio base unit not connected to the radio base unit or the relay unit, Based on a reply message from the wireless master device or the relay device for a message including the identification code from an unrelated wireless slave device, the wireless master device or the relay device that can be associated with the unrelated wireless slave device It consists of collecting everything.
Register the ID code of the most upstream wireless master unit in the wireless slave unit that is not connected to the wireless master unit or relay unit in advance using an external setting device, etc., and operate input devices such as buttons provided on the wireless slave unit As a result, it is possible to collect wireless master devices and relay devices that can be associated with the wireless slave devices.
In this case, it is possible to provide an external setting device for registering in advance the identification code of the wireless master device to the unrelated wireless slave device.

In order to solve the above-described problem, in the wireless telemeter system according to the present invention, a group unique number of a group including the repeater under the wireless master unit is set in advance in the unseen wireless slave unit, and the unseen set All of the wireless master device and the relay device that can be associated with the unrelated wireless slave device based on a reply message from the wireless master device or the relay device with respect to the message including the group unique number from the wireless slave device Consists of collecting.
Instead of registering the identification code of the group's most upstream wireless master unit with an external setting unit, by setting a group-specific number in the wireless slave unit, it is possible to collect wireless master units and repeaters that can be associated with the wireless slave unit. It becomes possible.
In this case, the unrelated wireless slave device can be provided with an input device such as DIPSW in order to set the group unique number.

In each of the wireless telemeter systems, the unrelated wireless slave device or the external setting device may include a display device that displays an identification code of the wireless master device or the relay device found as a result of collection. . Depending on the display content of the display device, the collection result can be confirmed with a wireless slave unit or an external setting device.
In the radio telemeter system including the display device, it is preferable to display or output only the radio base station or relay unit found as a result of collection having a communication radio wave intensity of a certain level or more as a collection result.
Furthermore, only the wireless master device can be displayed or output in response to the fact that the communication radio field strength of the wireless master device found as a result of the collection is equal to or higher than the certain level.
As described above, by displaying the results of only the relay station and the wireless master unit or only the wireless master unit having the communication radio wave intensity of a certain level or more, it is possible to remove in advance a terminal having a poor wireless environment from the target of association.
Further, the unaffiliated wireless slave unit or the external setting device may include an operation button for selecting a target of the matching from the wireless master device or the relay device that can be matched as a result of collection. it can. In this case, it is possible to select a terminal to be associated with the button of the wireless slave device or the external setting device from the identification codes of the relay device and the wireless master device displayed as a result.

  In each of the above wireless telemeter systems, the unrelated wireless slave unit is the wireless base unit selected from among the wireless base units that can be matched and the repeaters that are found as a result of collection. In response to receiving a telegram including the identification code of the target transmitted from the machine, it is possible to perform a matching operation with the target.

  In order to solve the above-described problem, the edge terminal selection method in the wireless telemeter system according to the present invention provides an identification code of the wireless base station at the most upstream of the system in advance to the wireless handset that is not connected to the wireless base station or the repeater. The unregistered wireless slave device transmits a message including the identification code to the wireless master device or the relay device from the unrelated wireless slave device, and the unrelated wireless device from the wireless master device or the relay device that has received the message. A reply message is transmitted to the machine, and all of the wireless master unit and the relay device that can be associated with the unrelated wireless slave device are collected based on the reply message, and the wireless master device and the relay found as a result of the collection It consists of selecting the target of the match from the machine.

  Further, the edge terminal selection method in the wireless telemeter system according to the present invention is configured such that a group unique number of a group including the relay station under the wireless base station is set in advance in the unconnected wireless handset, and the unconnected wireless base station is set. A message including the group unique number is transmitted from the child device to the wireless master device or the relay device, and a reply message is transmitted from the wireless master device or the relay device that has received the message to the unrelated wireless slave device. Collecting all the wireless master units and the relay devices that can be associated with the unrelated wireless slave device based on the reply message, and the target of the association from the wireless master devices and the relay devices found as a result of the collection Consists of selecting.

  According to the wireless telemeter system and the edge terminal selection method according to the present invention, the edge worker collects upstream terminals (relay devices, wireless master devices) capable of being edged with unrelated wireless slave devices, A terminal that can be a partner can be selected from the collected results. In addition, it is possible to perform a match by freely selecting a terminal as a match partner from the selected terminals.

  In addition, in a wireless telemeter system equipped with a display device, it is possible to display or output only a certain level or higher of communication radio wave intensity among the wireless master units and repeaters found as a result of collection. If the communication radio field strength of the found radio base unit is a certain level or higher, only that radio base unit can be displayed or output. Therefore, by displaying the results of only the relay station and the wireless master unit or the wireless base unit that have a communication radio wave strength of a certain level or more, it is possible to remove in advance the terminals with poor wireless environment from the target of the association. Matching work with a good upstream terminal can be performed smoothly. Further, an unrelated wireless slave unit or an external setting device can be provided with a button for operation. In this case, the wireless slave unit can be selected from among the wireless master units or repeaters that are found as a result of collection. You can select the terminal you want to match with a button or external setting device.

  Hereinafter, an embodiment of a wireless telemeter system according to the present invention will be described with reference to the drawings.

  As shown in FIG. 1, the radio telemeter system is connected to a center 102 connected to a host computer 101 (hereinafter referred to as a host), a T-NCU 103 connected to the center 102 via a telephone line 109, and a T-NCU 103. Main 104, a plurality of relays 105 that perform wireless data communication with the main 104, a plurality of subs 106 that perform wireless data communication with each relay 105, and a gas that is connected to each sub 106 by wire, etc. It consists of a meter 107. There is also a configuration in which the sub 106 directly performs wireless data communication with the main 104 without using the relay device 105.

  Usually, the main 104 can have a plurality of relay devices 105 under control (in FIG. 1, the main 04 has the relay devices 1 to 3 under control), and the relay device can have a plurality of subs under control. (In FIG. 1, the repeaters 1 to 3 have sub 1-1 to 1-3, 2-1 to 2-3, and 3-1 to 3-3, respectively). That is, the main 104 can communicate with a plurality of subs 106 placed under the respective relay devices 105 via the respective relay devices 105.

  The communication route is determined by the edge, and the edge 104 is used for the main 104, the sub 106, and the repeater 105 to exchange information necessary for communication with each other and to enable communication between the terminals. It is an arrangement. Here, information necessary for communication refers to a code uniquely determined for each terminal, such as each identification code. Therefore, the repeater 105 (1, 2, 3) that is already associated with the main 104 stores the identification code of the main 104. The relay 105 and the main 104 viewed from the sub 106 are referred to as upstream terminals, and the relay 105 and the sub 106 viewed from the main 104 are referred to as downstream terminals.

  FIG. 2A is a block diagram of the main 104, and FIG. 2B is a block diagram of the sub 106 and the repeater 105. The main 104 and the sub 106 and the repeater 105 have a non-volatile memory 202 for registration of identification codes and the like. They also include a display unit 209 for displaying the result of the match and the identification code, and a DIPSW 211 and a button 212 as input devices. The CPU 203 has a clock and timer function.

  Now, suppose that an unrelated sub 108 (sub 4; see FIG. 1) is newly added to the group centered on the main 104. Theoretically, it should be associated with the repeater 105 (relay 2; see Fig. 1) that is the closest to the straight line, but wireless communication may not be possible even if the distance is short depending on the surrounding environment. There is a need for measurement surveys of the wireless environment. At that time, in order to select an upstream terminal that can communicate with the sub 4, first, the identification code of the main 104 that is the most upstream terminal of the group is registered in the sub 4 by an external setting device or the like that can be connected to the sub 4. . As another means, a code of a certain number of digits (hereinafter referred to as a group ID) uniquely determined for the group is prepared, and this is set to sub 4 by DIPSW or the like provided in the terminal or the external setting device. (In this case, both the main 104 and the relay 105 need to be set to the same group ID).

  By pressing an input device such as a button 212 (FIG. 2B) provided in the sub 4, transmission of a broadcast message including the registered identification code and group ID of the main 104 is started. The main 104 and the relay device 105 that have received the broadcast message from the sub 4 analyze the contents of the message, and if the main 104 matches its identification code or group ID, the relay device 105 is associated with itself. If the identification code or group ID of the main 104 is matched, data in which the identification code is embedded in the reply message is transmitted to the sub 4 that performed the broadcast communication.

  When the main 104 or the repeaters 1 to 3 receive this broadcast message from the sub 4, the reply is sent to the sub 4. It does not reply even if it is received by other mains, repeaters or subs. At this time, in order to prevent the main 104 and the repeaters 1 to 3 receiving the broadcast message from replying to the sub 4 at the same time, the reply time is shifted by the last digit of the identification code of each terminal. Use the technique.

  The sub 4 that has received the telegram including their own identification code from the main 104 or the repeaters 1 to 3 analyzes the received telegram and displays the upstream terminal identification code on the display terminal provided to itself, or By transmitting a telegram including all the identification codes received to the connected setting device, the operator can recognize upstream terminals that can be matched.

  In addition, a radio field strength threshold value is set in the sub 4 in advance, and the radio field strength is measured simultaneously with reception from the main 104 and the repeaters 1 to 3 after transmission of the broadcast message. Only the terminal identification code indicating the radio field intensity may be displayed or transmitted to the external setting device as a result. By adopting such a method, only the upstream terminal having a good radio wave environment is displayed, and the operator can select a terminal to be matched from the displayed terminals having a good radio wave environment.

  Also, the communication time differs between communicating with the sub 4 from the center 102 via the relay device and directly communicating with the sub 4 from the main 104 without passing through the relay device. Therefore, if there is a certain level of radio field strength at the time of receiving a reply message from the main 104, even if there is a relay station showing a certain level of radio field strength, such relay station is ignored and an identification code for only the main 104 is assigned. It is also possible to adopt a method of displaying or transmitting the result to an external setting device as a result.

  After presenting the result, by operating the input device such as the button 212 provided in the sub 4, display of the identification codes of the main 104 and the repeaters 1 to 3 successfully displayed on the display device of the sub 4 is displayed. By switching, the operator selects the main / relay machine that he / she wants to match, and also operates the input device such as the button 212 to transmit a message including the selected identification code. Be started. By doing so, the edge terminal selection and the edge can be performed by a series of operations.

  In addition, when the collected results are displayed on an external setting device, the external setting device can be used to select the main or relay device that is desired to be set, and the message including the identification code of the relay device is used as the setting message. Margining can be performed by transmitting from to sub.

  3A to 3B show a series of edge flows. FIG. 3A shows a case where the identification code of the main 104 is registered in the sub 4 using an external setting device. In sub 4, for example, the field intensity 0 × 40 is set in advance as a threshold value, and at the time of reply from the upstream terminal to the transmission of the broadcast message including the identification code of the main 104 (the last digit of the identification code of the terminal The response timing from each upstream terminal is shifted by the above method), and the intensity of the response radio wave is measured. The sub 4 transmits the identification code of the terminal (main 104 and the repeater 1 in FIGS. 3A and 3B) having a radio field intensity equal to or higher than the threshold to the external setting device, and the result (terminal and its terminal) on the external setting device. (Identification code) is displayed. The sub 4 receives from the external setting device an edge request message including the identification code of the main 104 or the relay 1 (the main 104 in FIG. 3A and the relay 1 in FIG. 3B). As a result, a match with the upstream terminal is started. In FIG. 3A, a message is sent from the sub 4 to the main 104 in the case of FIG. 3B, and in the case of FIG. 3B to the relay device 1, and the main 104 or the relay device 1 that has received the message is sending a message of reply to the sub 4 In addition, the sub result 4 displays the match result by itself, and the sub 4 receiving the match reply message itself displays the match result (in addition, the match result may be displayed on the external setting device). When the repeater is selected, after the end operation of the sub 4 and the repeater is completed, the operation proceeds to the end operation of the repeater and the main 104 (FIG. 3B), and the exchange message and the display of the end result are performed. .

  FIG. 4 shows a series of flows for another edge form. In the example illustrated in FIG. 4, the DIPSW on the sub 4 is used and the same setting as the group ID set in advance in the main 104 and the relay devices 1 to 3 is illustrated. Similarly to the example shown in FIGS. 3A and 3B, sub 4 is preliminarily set with a radio field intensity 0 × 40 as a threshold value as an example, and the radio field intensity at the time of reply from the upstream terminal to the transmission of the broadcast message including the group ID Measure. The sub 4 displays the identification code of the terminal (in the case of FIG. 4, the main 104 and the repeater 1) having the radio field intensity equal to or higher than the threshold on its display device. Then, sub 4 presses a button indicating selection selection of the request message for selecting the match request message including the identification code of the selected one of main 104 and repeater 1 (main 104 in the case of FIG. 4). Start sending to The explanation of the match request message and its reply message is the same as in FIGS. 3A and 3B. In this selection determination, when a repeater is selected in place of the main 104, after the end operation of the sub and repeater ends, the end operation of the repeater and the main is performed. Note that the group ID may be set by an external setting device as in the example shown in FIGS. 3A and 3B.

  The wireless telemeter system according to the present invention and the edge terminal selection method in the wireless telemeter system can be applied to applications such as outdoor telemeter / telecontrol and other wireless data communication in addition to communication with home sensors and home appliances. .

1 is a system diagram of a wireless telemeter system according to an embodiment of the present invention. 1 is a block diagram of a wireless master device according to an embodiment of the present invention. It is a block diagram of a repeater and a wireless slave unit according to an embodiment of the present invention. It is a sequence diagram which shows an example of the terminal selection operation | work which can be matched of the radio | wireless main | base station, relay machine, and radio | wireless subunit | mobile_unit concerning embodiment of this invention. It is a sequence diagram which shows another example of the terminal selection operation | work which can be matched of the radio | wireless main | base station, relay machine, and radio | wireless child machine concerning embodiment of this invention. It is a sequence diagram which shows another example of the terminal selection operation | work which can be matched of the radio | wireless main | base station, a relay machine, and a radio | wireless subunit | mobile_unit concerning embodiment of this invention.

Explanation of symbols

101 Host computer 102 Center NCU
103 T-NCU 104 Wireless master unit (main)
105 Repeater 106 Wireless slave unit (sub)
107 Meter 108 Unlinked wireless cordless handset (sub)
109 Telephone line 201 / F for connection with T-NCU 202 Non-volatile memory for data registration 203 CPU 204 Wireless communication unit 205 Antenna 206 ROM
207 RAM 208 Battery 209 Display unit 210 for displaying communication results, etc./F for connecting meter, etc.
211 Input devices such as DIPSW 212 Input devices such as buttons

Claims (11)

A terminal NCU and a wireless master device connected in series to a center NCU via a telephone network, a plurality of wireless slave devices that perform wireless communication with the wireless master device, and between the wireless master device and the wireless slave device In a wireless telemeter system comprising a wireless repeater arranged in a communication section, and a microcomputer meter connected to each sub in a wired manner,
An identification code of the wireless master unit at the most upstream of the system is pre-registered in a wireless slave unit that is unrelated to the wireless master unit or the relay unit, and the wireless for the message including the identification code from the unrelated wireless slave unit A radio telemeter system comprising collecting all of the wireless master device and the relay device that can be associated with the unrelated wireless slave device based on reply messages from the master device and the relay device.   2. The radio telemeter system according to claim 1, further comprising an external setting unit for preliminarily registering the identification code of the wireless master device to the unrelated wireless slave device. A terminal NCU and a wireless master device connected in series to a center NCU via a telephone network, a plurality of wireless slave devices that perform wireless communication with the wireless master device, and between the wireless master device and the wireless slave device In a wireless telemeter system comprising a wireless repeater arranged in a communication section, and a microcomputer meter connected to each sub in a wired manner,
A group unique number of a group including the repeater under the wireless master unit is set in advance in the unrelated wireless slave device, and the wireless parent for a message including the group unique number from the unrelated wireless slave device is set. A wireless telemeter system comprising collecting all of the wireless master device and the relay device that can be associated with the unrelated wireless slave device based on a reply message from the device or the relay device.   4. The wireless telemeter system according to claim 3, wherein said unrelated wireless slave unit includes an input device such as DIPSW for setting said group unique number.   The unconnected wireless slave or the external setting device is provided with a display device for displaying an identification code of the wireless master or the repeater found as a result of collection. The radio telemeter system according to claim 1.   6. The radio telemeter system according to claim 5, wherein only the radio base stations and relay stations found as a result of collection are displayed or output as collection results having a certain radio wave intensity.   7. The radio telemeter according to claim 6, wherein only the radio base unit is displayed or output in response to the communication radio field strength of the radio base unit found as a result of collection being equal to or greater than the certain level. system.   Since the unaffiliated wireless slave unit or the external setting device has an operation button for selecting a target of the matching from the wireless master device or the repeater that can be matched as a result of collection. The radio telemeter system according to any one of claims 5 to 7.   The unaffiliated wireless slave unit is the target of the target selected from the wireless master unit and the repeater that can be matched as a result of collection. The radio telemeter system according to any one of claims 1 to 8, wherein a matching operation with the object is performed in response to receiving a telegram including an identification code. A terminal NCU and a wireless master device connected in series to a center NCU via a telephone network, a plurality of wireless slave devices that perform wireless communication with the wireless master device, and between the wireless master device and the wireless slave device In a wireless telemeter system comprising a wireless repeater arranged in a communication section, and a microcomputer meter connected to each sub in a wired manner,
The identification code of the most upstream radio base unit is pre-registered in the wireless slave unit that is unrelated to the wireless master unit or the relay unit, and the wireless slave unit of the unrelated group is registered in the wireless master unit or the relay unit. A message including an identification code is transmitted, a reply message is transmitted from the wireless master device or the relay device that has received the message to the unrelated wireless slave device, and the unrelated wireless slave device is based on the reply message A terminal selection method in a radio telemeter system comprising: collecting all the wireless master units and repeaters that can be associated with each other, and selecting a target of the association from the wireless master units and repeaters found as a result of the collection . A terminal NCU and a wireless master device connected in series to a center NCU via a telephone network, a plurality of wireless slave devices that perform wireless communication with the wireless master device, and between the wireless master device and the wireless slave device In a wireless telemeter system comprising a wireless repeater arranged in a communication section, and a microcomputer meter connected to each sub in a wired manner,
A group unique number of the group including the repeater under the wireless master unit is set in advance in the unrelated wireless slave device, and the group unique number is assigned to the wireless master device or the repeater from the unrelated wireless slave device. A message including a number is transmitted, a reply message is transmitted from the wireless master device or the relay device that has received the message to the unrelated wireless slave device, and the unrelated wireless slave device is An edge terminal selection method in a wireless telemeter system, comprising collecting all of the wireless master units and repeaters that can be matched and selecting a target of matching from the wireless master units and repeaters found as a result of collection.

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