JP2006221574A - Communication device for automatic meter reading - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide communication device for automatic meter reading which can conduct between a line connection part 2 and a radio master set part by fixing a cover 6 to a case 5. <P>SOLUTION: The communication device for automatic meter reading which reads a meter by collecting a measured values from the meter by radio communication is provided with: the line connection part 2 for connection with an external management device through a communication network; the radio master set part 3 for carrying out radio communication between itself and a radio slave set connected to the meter; a switch part 4 for switching conduction/disconnection between the line connection part 2 and the radio master set part 3; the case 5 for housing the line connection part 2, the radio master set part 3 and the switch part 4; the cover 6 fitted to the case 5; and a rib 20 formed in the cover 6 for switching the switch part 4 into a conductive state when fitting the cover 6 to the case 5. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a communication device for automatic meter reading that collects metered values by a meter and performs meter reading, and particularly relates to connection switching inside the device.

  Conventionally, meter reading of electricity, gas, water, etc. provided in each home has been performed by automatic meter reading that automatically collects metered values from a central management center etc. using a communication network such as a telephone line. ing. In this automatic meter reading, an automatic meter reading system in which an automatic meter reading communication device, which is a line connection device, is connected to a communication network constituted by a telephone line or the like and a wire is connected between the automatic meter reading communication device and a meter is used. Yes.

  However, with the spread of the Internet using ADSL (Asymmetric Digital Subscriber Line), optical communication, etc., the number of cases in which automatic meter reading communication devices are installed indoors has increased. Wired construction is difficult, and there are an increasing number of cases where it is not possible to carry out wired construction in customer premises due to aesthetic problems.

  For this reason, a wireless meter reading system in which an automatic meter reading communication device and a meter are connected wirelessly has been introduced. FIG. 15 shows a conventional wireless meter reading system. As shown in FIG. 15, this wireless meter reading system connects a wireless master device 103 to a line connection device 102 connected to a center device 105 via a communication network 104, and connects a wireless slave device 107 to a meter 106. The measurement value of the meter 106 is collected by wireless communication. FIG. 16 is a diagram in which the line connection device 102 and the wireless master device 103 of FIG. 15 are housed in one casing 1 (automatic meter reading communication device).

  When a conventional automatic meter-reading communication apparatus as shown in FIG. 16 is installed in a consumer, the test is performed in the following procedure. First, pairing between the wireless master unit 3 and the wireless slave unit 107 is performed. Next, a communication confirmation test between the center apparatus 105 and the line connection unit 2 is performed. In this communication confirmation test of the line connection unit 2, after connecting the line connection unit 2 to the center device 105 via the communication network 104, the lead wire 108 connecting the line connection unit 2 and the wireless master unit 3 is connected. Disconnected, the wired communication signal between the line connection unit 2 and the wireless base unit 3 is disconnected, and a communication confirmation device (not shown) such as a setting device is connected to the communication terminal (not shown) of the line connection unit 2 To do. Next, data setting to the wireless master device 3 and a communication confirmation test between the wireless master device 3 and the wireless slave device 107 are performed. The data setting in the wireless master unit 3 and the communication confirmation test between the wireless master unit 3 and the wireless slave unit 107 are performed by connecting the line connecting unit 2 and the wireless master unit 3 with the lead wire 108. 2 and the wireless master unit 3 are conducted. After the test is completed, remove the communication confirmation device from the communication terminal.

  In addition, as a wireless terminal device of the same type, a protector installed outdoors is connected to the line control unit, a terminal device installed indoors is connected to the signal transmission control unit, and the line control unit and the signal transmission control unit are connected. There is disclosed a line terminal device that performs communication between them by radio signals (Patent Document 1).

Also disclosed is an automatic notification device in which a meter-side wireless unit is connected to a meter, a notification device-side wireless unit is built in the notification device, and the meter-side wireless unit and the notification device-side wireless unit are connected via a wireless line. (Patent Document 2).
Japanese Patent No. 2993242 Japanese Patent Laid-Open No. 06-261137

  In the conventional automatic meter-reading communication device shown in FIG. 16, when performing a communication confirmation test between the center device 105 and the line connection unit 2, the cover of the housing 1 is opened and the line connection unit 2 and the wireless master unit 3 are opened. Is disconnected, the wired communication signal between the line connection unit 2 and the wireless master unit 3 is disconnected. After the communication confirmation test of the line connection unit 2 is completed, the line connection unit 2 and the wireless master unit 3 are connected by the lead wire 108, the cover is closed, and the operation state is set.

  However, after the communication confirmation test of the line connection unit 2 is completed, the cover may be closed and installed with the lead wire 108 removed. For this reason, there has been a problem that the installation work needs to be performed again or the setting work must be performed again.

  The present invention has been made to solve the above-described problems, and the problem is that a cover is attached even if the connection between the line connection unit and the wireless base unit is forgotten during installation work. Automatic meter-reading communication device that prevents work mistakes in which the connection between the line connection unit and the wireless master unit is installed in a disconnected state by making the connection between the line connection unit and the wireless master unit more efficient, and makes the installation work more efficient Is to provide.

  The present invention employs the following means in order to solve the above problems. The invention of claim 1 is an automatic meter-reading communication device that collects a measured value from a meter by wireless communication and performs meter-reading, and a line connection unit for connecting to an external management device via a communication network; A wireless master unit that performs wireless communication with a wireless slave device connected to a meter, a switch unit that switches conduction / disconnection between the line connection unit and the wireless master device, and the line connection unit; A case for housing the wireless base unit and the switch unit; a cover attached to the case; and a rib formed on the cover for switching the switch unit to a conductive state when the cover is attached to the case. It is characterized by having.

  According to a second aspect of the present invention, in the communication device for automatic meter reading according to the first aspect, the switch unit is a slide switch that switches conduction / disconnection by sliding the operation unit, and the cover covers the case. The rib is fixed to the case by sliding, and when the cover is slid in a direction to fix the cover to the case, the operation unit of the slide switch is slid to switch the slide switch to a conductive state. And

  According to a third aspect of the present invention, in the communication device for automatic meter reading according to the second aspect, the rib switches the slide switch to a conductive state when the cover is slid in a direction to fix the cover to the case, and the cover is moved to the conductive state. The slide switch is switched to a disconnected state when sliding in the direction of removal from the case.

  According to a fourth aspect of the present invention, in the automatic meter-reading communication device according to any one of the first to third aspects, the wireless master unit monitors the conduction / disconnection of the switch unit to monitor the switch unit. A time measuring unit for measuring a disconnection time, and a control unit for controlling communication between the line connection unit, the control unit has a disconnection time storage unit for storing a preset set time, When the disconnection time measured by the time measurement unit exceeds the set time stored in the disconnection time storage unit, the operation of the switch unit is invalidated and no communication is performed with the line connection unit. It is characterized by being in a state.

  According to a fifth aspect of the present invention, in the automatic meter-reading communication device according to the fourth aspect, the control unit includes a magnetic force detection unit that detects a magnetic force, and the nonmagnetic force detection unit detects the non-magnetic force when the magnetic force detection unit detects a predetermined magnetic force or more. The communication state is canceled to enable the operation of the switch unit.

  According to a sixth aspect of the present invention, in the automatic meter-reading communication device according to any one of the first to fifth aspects, the wireless master unit stores a number of switching times for storing the number of switching times and the switching date and time of the switch unit. It has the part.

  According to the first aspect of the present invention, the rib formed on the cover switches the switch part when the cover is attached to the case so that the line connecting part and the wireless master unit are in a conductive state. It is possible to prevent an operation error that is caused in a state where the wireless base unit is disconnected and to improve the efficiency of the installation work.

  According to the invention of claim 3, the rib switches the slide switch to the conductive state when sliding the cover in the direction to fix the cover to the case, and switches the slide switch to the cut state when sliding the cover in the direction to remove the cover from the case. Therefore, it is possible to prevent work mistakes in which the connection between the line connection unit and the wireless base unit is installed in a disconnected state, improve installation efficiency, and eliminate the need for manual operation to switch the slide switch to the disconnected state. Therefore, the installation work can be made more efficient.

  According to the invention of claim 4, the time measuring unit monitors the conduction / disconnection of the switch unit and measures the disconnection time of the switch unit, the disconnection time storage unit stores the set time, and the control unit is the time measurement unit When the disconnection time measured in (1) exceeds the set time stored in the disconnection time storage unit, the operation of the switch unit is invalidated so that the line connection unit and the wireless master unit are not in communication. In addition, it is possible to avoid communication abnormality or failure between the wireless master unit and the line connection unit due to tampering with the switch. In addition, this abnormality can be notified to an external central management center or the like from the line connection unit.

  According to the invention of claim 5, when the magnetic force detection unit detects a magnetic force greater than or equal to a predetermined value, the control unit releases the non-communication state between the line connection unit and the wireless base unit, and the operation of the switch unit is effective. Therefore, when the line connection unit and the wireless base unit are in a non-communication state, the communication between the wireless base unit and the line connection unit is restored by causing the magnetic force detection unit to detect a magnetic force greater than a predetermined value. Thus, communication between the meter and the external central management center can be restored.

  According to the invention of claim 6, since the switching number storage unit stores the switching number and switching date and time of the switch unit, it is possible to monitor the switch operation after the installation work, specify the number of times and the date and time of mischief, communication abnormality, The cause of failure can be pursued.

  Hereinafter, an automatic meter-reading communication apparatus according to an embodiment of the present invention will be described in detail with reference to the drawings. In the following description, the same or corresponding parts as those of the automatic meter-reading communication apparatus described in the background art section will be described using the same reference numerals as those used in the background art section.

  FIG. 1 is a block diagram showing a configuration of an automatic meter reading communication apparatus according to Embodiment 1 of the present invention. As shown in FIG. 1, the automatic meter-reading communication apparatus according to the first embodiment is connected in a housing 1 to a line connection unit 2 and a meter for connection to a center apparatus via a communication network such as a telephone line. A wireless master unit 3 that performs wireless communication with the wireless slave unit and a switch unit (slide switch) 4 that switches conduction / disconnection between the line connection unit 2 and the wireless master unit 3 are provided.

  2 and 3 are external perspective views showing a communication device for automatic meter reading according to Embodiment 1 of the present invention. FIG. 4 is a cross-sectional view taken along line AA in FIG. 2, and FIG. 5 is a cross-sectional view taken along line BB in FIG. FIG. 2 and 4 show a disconnected state where the contact of the slide switch 4 is open, and FIGS. 3 and 5 show a conductive state where the contact of the slide switch 4 is closed.

  As shown in FIG. 2 or 3, the housing 1 includes a case 5 having a fitting portion 11 and a cover 6 having a fitting hole 16 for fitting the fitting portion 11. The cover 6 is a case. The cover 6 placed on the case 5 is fixed to the case 5 by sliding in the direction in which the fitting portion 11 is fitted in the fitting hole 16 (the arrow direction in FIG. 2) (see FIG. 2). 3).

  The case 5 is provided with a telephone line side modular jack 7 a and a telephone side modular jack 7 b, and a substrate 12 (see FIG. 4 or FIG. 5) is fitted inside the case 5.

  The circuit board 12 includes a line connection unit 2, a wireless base unit 3, a slide switch 4 for switching conduction / disconnection between the line connection unit 2 and the wireless base unit 3, and communication of the line connection unit 2 performed during installation work. A communication terminal 9 for connecting a communication confirmation device used in a confirmation test and other mounting parts are mounted. The inner case 10 is fitted from above the substrate 12 (see FIG. 4 or FIG. 5).

  The inner case 10 is provided with holes 13 and 14 at a position facing the slide switch 4 on the substrate 12 and a position facing the communication terminal 9, respectively. The slide switch 4 and the communication terminal 9 are connected to the inner case 10 respectively. The holes 13 and 14 are penetrated. A battery 15 for operating the circuit board is mounted on the inner case 10.

  As shown in FIG. 4, the cover 6 has a substantially triangular rib 20 integrally formed on the inner surface. The rib 20 is formed at a position facing the operation portion 4a of the slide switch 4 penetrating on the inner case 10 when the cover 6 is put on the case 5 (D portion in FIG. 4). In order to fix the cover 6 to the case 5, when the cover 6 is slid in the direction in which the fitting portion 11 is fitted in the fitting hole 16 (the arrow direction in FIG. 4), the rib 20 integrally formed with the cover 6 is formed. The operation part 4a of the slide switch 4 is pressed. That is, when the cover 6 is slid, the operation portion 4a of the slide switch 4 is linearly slid accordingly, and when the cover 6 is fixed to the case 5, the contact of the slide switch 4 is closed. A connection state is established between the line connection unit 2 and the wireless base unit 3 (FIG. 5).

  As described above, according to the automatic meter-reading communication apparatus according to the first embodiment of the present invention, when the cover 6 is slid and fixed to the case 5, the slide switch 4 becomes conductive. For this reason, in order to carry out a communication test at the time of installation work, the line connection unit 2 and the wireless master unit 3 are disconnected by the slide switch 4, and the slide switch 4 is turned on after the communication test is completed. Even if you forget that, by closing the cover 6 and fixing it to the case 5, the slide switch 4 is forcibly switched to establish a conductive state between the line connection unit 2 and the wireless base unit 3 ( Operation state). As a result, it is possible to prevent an operation mistake that the line connection unit 2 and the wireless master unit 3 of the automatic meter-reading communication apparatus are installed in a disconnected state, and the installation work can be made efficient.

  In the present embodiment, the rib 20 formed on the cover 6 has a substantially triangular shape, but the shape of the rib 20 is not limited to this, and the slide switch 4 can be secured by fixing the cover 6 to the case 5. Other shapes that close the contacts may be used.

  In this embodiment, the fitting portion 11 is provided in the case 5 and the fitting hole 16 is provided in the cover 6. However, the present invention is not limited to this, and the cover 5 is fixed to the case 5 by sliding. It only has to be done.

  6 and 7 are external perspective views showing a communication device for automatic meter reading according to Embodiment 2 of the present invention. As shown in FIG. 6 or FIG. 7, the cover 6a of the automatic meter-reading communication apparatus according to the second embodiment is formed with ribs 20a so as to sandwich the slide switch 4, for example, the rib 20 of the cover 6 of the first embodiment. The slide switch 4 is sandwiched between two ribs having the same shape as in FIG. Other configurations are the same as the configurations of the first embodiment shown in FIGS. 1 to 5, and the same portions are denoted by the same reference numerals and the details thereof are omitted.

  The communication device for automatic meter reading according to the second embodiment, when the cover 6a is fixed to the case 5 by sliding the cover 6a in the direction in which the fitting portion 11 is fitted into the fitting hole 16 as in the first embodiment. The contact point of the slide switch 4 is closed, and the line connection unit 2 and the wireless master unit 3 are brought into conduction. Further, when the cover 6a fixed to the case 5 is slid in the direction opposite to the direction in which the cover 6a is fixed (the direction in which the cover 6a is removed from the case 5), the contact of the slide switch 4 is opened and the line connection unit 2 and the wireless parent The machine part 3 is disconnected. In other words, the cover 6a of the automatic meter-reading communication apparatus according to the second embodiment is slid in the direction in which the cover 6a is slid in the direction in which the cover 6a is fixed to the case 5 so that the slide switch 4 is turned on. By doing so, a bi-directional switching rib 20a is provided to place the slide switch 4 in a disconnected state.

  As described above, according to the communication device for automatic meter reading according to the second embodiment, the same effect as that of the first embodiment can be obtained, and the line connection unit can be obtained by sliding the cover 6a in the direction of removing from the case 5. 2 and the wireless master unit 3 can be disconnected, so there is no need to manually switch the slide switch 4. For this reason, it is possible to prevent an operation mistake that the line connection unit 2 and the wireless base unit 3 are installed in a disconnected state, and to further improve the installation work.

  FIG. 8 is a block diagram showing a configuration of a communication device for automatic meter reading according to Embodiment 3 of the present invention. As shown in FIG. 8, the wireless master unit 3 a of the automatic meter-reading communication apparatus according to the third embodiment controls the wireless unit 31 that performs wireless communication with the wireless slave unit, and the communication between the line connection unit 2 and the wireless unit 31. And a time measuring unit 33 for measuring a time (cutting time) after the slide switch 4 is in a disconnected state. Moreover, the control part 32 has the cutting time memory | storage part 34 which memorize | stored the preset setting time. Other configurations are the same as those of the first embodiment or the second embodiment, and the same portions are denoted by the same reference numerals, and the details thereof are omitted.

  Next, the operation of the automatic meter-reading communication apparatus according to the third embodiment configured as described above will be described in detail with reference to the flowchart shown in FIG. As shown in FIG. 9, in the automatic meter reading communication apparatus according to the third embodiment, when the slide switch 4 is disconnected (step S1), the time measuring unit 33 starts measuring the cutting time (step S2). The control unit 32 compares the measured measurement time (cutting time) with the set time stored in the cutting time storage unit 34 (step S3). If the measurement time is longer than the set time as a result of the comparison, even if the control unit 32 puts the slide switch 4 in the conductive state, the line connection unit 2 and the wireless base unit 3 are brought into a non-communication state (slide switch). 4 is disabled (step S4). When the measurement time is shorter than the set time, the state of the slide switch 4 is confirmed again (step S5). At this time, when the slide switch 4 is in the conductive state, the normal operation state is restored (step S6). If the slide switch 4 is in the disconnected state in step S5, the process is repeated from step S3.

  As described above, according to the automatic meter-reading communication apparatus according to the third embodiment, the same effect as that of the first or second embodiment can be obtained, and the cutting time of the slide switch 4 is set in advance. After the time is exceeded, the operation of the slide switch 4 can be invalidated and the line connection unit 2 and the wireless master unit 3 can be in a non-communication state. Communication abnormality and failure between the wireless master unit 3 and the wireless master unit 3 can be avoided. Further, this abnormality can be notified to an external centralized management center or the like by the line connection unit 2.

  FIG. 10 is a block diagram showing a configuration of an automatic meter-reading communication apparatus according to Embodiment 4 of the present invention. As shown in FIG. 10, the automatic meter-reading communication apparatus according to the fourth embodiment is obtained by providing a magnetic force detection unit 35 in the control unit 32 of the third embodiment shown in FIG. Other configurations are the same as those of the third embodiment, and the same reference numerals are given to the same portions, and details thereof are omitted.

  The magnetic force detection unit 35 is used when the disconnection time of the slide switch 4 exceeds the set time and the communication between the line connection unit 2 and the wireless base unit 3 becomes a non-communication state. A magnetic force is detected by bringing a magnet having a predetermined magnetic force closer to 35 and a reed switch (not shown) is turned ON. When this reed switch is turned on, the non-communication state between the line connection unit 2 and the wireless master unit 3 is released, and the operation of the slide switch 4 becomes valid.

  Next, the operation of the automatic meter-reading communication apparatus according to the fourth embodiment configured as described above will be described in detail with reference to the flowchart shown in FIG. As shown in FIG. 11, in the automatic meter-reading communication apparatus according to the fourth embodiment, the operations from step S11 to step S14 and step S17 are the same as the operations of the third embodiment. In the fourth embodiment, it is determined whether or not the reed switch is turned on (whether the magnet is brought closer) after the line connection unit 2 and the wireless master unit 3 are in a non-communication state in step S14 ( Step S15). If the reed switch is OFF, the process returns to step S14. If the reed switch is turned ON, the state of the slide switch 4 is confirmed again (step S16). When the slide switch 4 is in a conductive state, a normal operation state is set (step S18). When the slide switch 4 is in the disconnected state, the process is repeated from step S16.

  As described above, according to the automatic meter-reading communication apparatus according to the fourth embodiment, the same effect as that of the third embodiment can be obtained, and further, a magnet having a predetermined magnetic force or more can be brought closer to the magnetic force detection unit 35. The non-communication state between the line connection unit 2 and the wireless base unit 3 can be canceled and the operation of the slide switch 4 can be validated. At this time, by making the slide switch 4 conductive, communication between the line connection unit 2 and the wireless master unit 3 can be restored, and communication between the meter and the central management center can be restored.

  12 and 13 are block diagrams showing the configuration of an automatic meter-reading communication apparatus according to Embodiment 5 of the present invention. 12 is provided with a switching number storage unit 36 for storing the switching number and switching date and time of the slide switch 4 in place of the cutting time storage unit in the control unit 32 of the third embodiment shown in FIG. Is provided with a switching number storage unit 36 in the control unit 32 of the fourth embodiment shown in FIG. As described above, the automatic meter-reading communication apparatus according to the fifth embodiment is the same as the wireless master device 3 in the first or second embodiment, and the control unit of the wireless master device 3a in the third or fourth embodiment. 32 includes a switching number storage unit 36.

  Next, the operation of the automatic meter-reading communication apparatus according to the fifth embodiment configured as described above will be described in detail with reference to the flowchart shown in FIG. As shown in FIG. 14, the automatic meter-reading communication apparatus according to the fifth embodiment determines whether or not the slide switch 4 is switched in any one of the automatic meter-reading communication apparatuses according to the first to fourth embodiments of the present invention. Monitoring (step S21), when the slide switch 4 is switched, the switching number storage unit 36 adds 1 to the slide switch switching number N (step S22), and repeats from step S21. In addition, the switching number storage unit 36 stores the switching date and time together with the switching number N.

  As described above, according to the automatic meter-reading communication apparatus according to the fifth embodiment, the same effects as any of the first to fourth embodiments can be obtained, and the slide switch switching frequency and switching date and time can be stored. By doing so, the switch operation after installation work can be monitored, the number of mischiefs and the date and time can be specified, and the cause of communication abnormality, failure, etc. can be pursued.

  The present invention can be applied to an automatic meter-reading communication device that automatically measures a metered value by wireless communication.

It is a block diagram which shows the structure of the communication apparatus for automatic meter-reading which concerns on Example 1 of this invention. It is an external appearance perspective view which shows the state which attaches a cover to the case of the communication apparatus for automatic meter-reading which concerns on Example 1 of this invention. It is an external appearance perspective view which shows the state by which the cover was attached to the case of the communication apparatus for automatic meter-reading which concerns on Example 1 of this invention. It is sectional drawing between AA of FIG. It is sectional drawing between BB of FIG. It is an external appearance perspective view which shows the state which attaches a cover to the case of the communication apparatus for automatic meter-reading which concerns on Example 2 of this invention. It is an external appearance perspective view which shows the state by which the cover was attached to the case of the communication apparatus for automatic meter-reading which concerns on Example 2 of this invention. It is a block diagram which shows the structure of the communication apparatus for automatic meter-reading which concerns on Example 3 of this invention. It is a flowchart which shows operation | movement of the automatic meter-reading communication apparatus which concerns on Example 3 of this invention. It is a block diagram which shows the structure of the communication apparatus for automatic meter-reading based on Example 4 of this invention. It is a flowchart which shows operation | movement of the automatic meter-reading communication apparatus which concerns on Example 4 of this invention. It is a block diagram which shows the structure of the communication apparatus for automatic meter-reading which concerns on Example 5 of this invention. It is a block diagram which shows the structure of the communication apparatus for automatic meter-reading which concerns on Example 5 of this invention. It is a flowchart which shows operation | movement of the automatic meter-reading communication apparatus which concerns on Example 5 of this invention. It is a block diagram which shows the structure of the conventional communication system for automatic meter-reading. It is a block diagram which shows the structure of the other conventional communication system for automatic meter-reading.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Case 2 Line | wire connection part 3, 3a Radio | wireless main | base station part 4 Slide switch 4a Operation part 5 Case 6, 6a Cover 7a, 7b Modular jack 9 Communication terminal 10 Inner case 12 Board | substrate 13, 14 Hole 15 Battery 16 Fitting hole 20 , 20a Rib 31 Radio unit 32 Control unit 33 Time measurement unit 34 Cutting time storage unit 35 Magnetic force detection unit 36 Switching frequency storage unit 102 Line connection device 103 Wireless master device 104 Communication network 105 Center device 106 Meter 107 Wireless slave device 108 Lead wire

Claims (6)

A communication device for automatic meter reading that collects measurement values from a meter by wireless communication and performs meter reading,
A line connection unit for connecting to an external management device via a communication network;
A wireless master unit that performs wireless communication with a wireless slave connected to the meter;
A switch unit for switching conduction / disconnection between the line connection unit and the wireless base unit;
A case for storing the line connection unit, the wireless master unit, and the switch unit;
A cover attached to the case;
A rib formed on the cover and switching the switch portion to a conductive state when the cover is attached to the case;
A communication device for automatic meter reading, comprising:   The switch unit is a slide switch that switches between conduction and disconnection by sliding an operation unit, the cover is fixed to the case by sliding over the case, and the rib is configured to connect the cover to the case. The automatic meter-reading communication device according to claim 1, wherein when the slide switch is slid in a fixing direction, the operation unit of the slide switch is slid to switch the slide switch to a conductive state.   The rib switches the slide switch to a conductive state when sliding the cover in a direction to fix the cover to the case, and switches the slide switch to a disconnected state when sliding the cover in a direction to remove the cover from the case. The automatic meter-reading communication apparatus according to claim 2, wherein: The wireless base unit is
A time measuring unit for monitoring conduction / disconnection of the switch unit and measuring a disconnection time of the switch unit;
A control unit for controlling communication with the line connection unit;
With
The control unit has a cutting time storage unit that stores a preset setting time, and when the cutting time measured by the time measurement unit exceeds the setting time stored in the cutting time storage unit The communication device for automatic meter reading according to any one of claims 1 to 3, wherein operation of the switch unit is invalidated and a state of non-communication with the line connection unit is established.   The control unit includes a magnetic force detection unit that detects a magnetic force, and releases the non-communication state when the magnetic force detection unit detects a magnetic force greater than or equal to a predetermined value, thereby enabling the operation of the switch unit. The communication device for automatic meter reading according to claim 4. The automatic wireless meter communication device according to any one of claims 1 to 5, wherein the wireless master unit includes a switching frequency storage unit that stores the switching frequency and switching date and time of the switch unit. .

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