JP3450531B2 - Collective meter reading method - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a batch meter reading method for automatic meter reading of gas, water, electricity and the like.

[0002]

2. Description of the Related Art Recently, an automatic meter-reading system for sending a pointer value of a meter such as gas to a center via a public line is being developed.

By the way, in an apartment house or the like, it is conceivable to install a slave unit in each meter and perform automatic meter reading by communicating between one master unit and a plurality of slave units.

[0004]

In such a case, it is desirable to shorten the line occupation time as much as possible. This leads to cost increase if the line occupancy time is long, and
This is because an alarm from the meter etc. cannot be sent to the center during automatic meter reading.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a batch meter reading method in which a line occupation time is short in an apartment house or the like.

[0006]

In order to achieve the above-mentioned object, a first aspect of the present invention is to provide a controller connected to a center via a public line, a plurality of parent devices connected by wire, and respective parent devices. A plurality of terminal devices in charge are provided with child devices respectively installed, and wireless communication is performed between the parent device and the child device, thereby performing communication between the center and the plurality of terminal devices. In the communication system to perform, the center is a batch meter reading method of batch meter reading of the plurality of terminal devices,
(A) the center sends a batch meter reading command to the controller; (b) the controller sends a pointer value collection command to the master unit; and (c) the master unit batches the responsible slave unit. And sending a guideline value collection command, (d)
The plurality of slaves, after receiving the guideline value collection command,
Generating a random number for each child device and delaying it by a different set time, and sending the guideline value of the terminal device to the master device; (e) the master device is a terminal for which a guideline value has not been obtained. Regarding the device, a step of individually transmitting a collection command to the corresponding slave device to collect the guideline value, (f) the master device transmitting the guideline value of the terminal device to the controller, and (g) the controller Includes a step of repeating steps (b) to (f) for each parent device, and (h) a step in which the controller collectively sends the guideline values of the plurality of terminal devices to the center,
It is a batch meter-reading method characterized by comprising:

A second aspect of the invention is to provide a plurality of base units connected by wire to a controller connected to the center via a public line, and a handset unit installed in each of a plurality of terminal devices in charge of each base unit. A communication system for communicating between the center and the plurality of terminal devices by performing wireless communication between the master unit and the slave unit, wherein the center is the plurality of terminal devices. A batch meter reading method for batch meter reading, comprising: (a) the center sending a batch meter reading command to the controller; (b) the controller sending a pointer value collecting command to the master unit; The parent device collectively sends a guideline value collection command to the child device in charge;
(D) The plurality of slave units, after receiving the guideline value collection command, generate random numbers for each slave unit and delay the set guideline value of the terminal device to the master unit by delaying the set different time. A step of sending, (e) the master unit sends the guideline value of the terminal device to the controller, and (f) the controller repeats steps (b) to (e) for each master unit. , (G) the controller sends a specific number of pointer values among the pointer values of the plurality of terminal devices to the center, and (h) if there is a pointer value that could not be sent to the center, The center sends a batch meter reading command to the controller, and the controller sends a pointer value that could not be sent to the center, to the center.

[0008]

In the first invention, (a) the center sends a batch meter reading command to the controller, (b) the controller sends a pointer value collection command to the master unit, and (c) the master unit is in charge of the charge. Send a guideline value collection command to
(D) The plurality of slaves sends the guideline values of the terminal device to the master unit with a delay of a different time for each slave unit after receiving the guideline value collection command, and (e) the master unit. Sends the guideline value of the terminal device to the controller, (f) the controller repeats steps (b) to (e) for each parent device, and (g) the controller collectively handles the plurality of terminals. The pointer value of the device is sent to the center.

In the second invention, (a) the center sends a batch meter reading command to the controller, (b) the controller sends a pointer value collection command to the master unit, and (c) the master unit is in charge of the charge. Send a guideline value collection command to
(D) The slave unit receives the guideline value collection command and sends the guideline value of the terminal device to the master unit. (E) The master unit performs steps (c) to Repeat (d),
(F) The parent device collectively sends the guideline values of the terminal device to the controller, (g) the controller repeats steps (b) to (f) for each parent device, and (h) the above. The controller collectively sends the guideline values of the plurality of terminal devices to the center.

[0010]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is a schematic configuration diagram of a communication system in which the batch metering method according to the first invention and the second invention is used. This communication system is intended for a 6-story apartment house (condominium) 9. , T-NCU 5, telephone 6 and controller 7 are installed in a management room or the like of an apartment house 9. The T-NCU 5 is connected to the center 1 via the public line 4 and the exchange 3. Wireless base units (hereinafter referred to as base units) 11a, 11b, and 11c are respectively on the first floor and the third floor of an apartment house.
It will be installed in the common space on the 5th and 5th floors.

The meter 15a-1, ... 15a-4 is 1
Meters 15a-5, ..., 15a-in each customer's house on the floor
8 is a meter 15b-1, ... 1 at each customer's house on the second floor
5b-4 is a meter 15b-5, ...
.. 15b-8 is installed in each consumer's house on the 4th floor and meter 15c-
1, ... 15c-4 is installed in each consumer's house on the 5th floor with a meter 1
5c-5, ..., 15c-8 are installed in each consumer's house on the 6th floor. Meters 15a-1, 15a-2 ... 15c-
8 are wireless slave units (hereinafter referred to as slave units) 13a-1,
13a-2 ... 15c-8 are installed.

The center 1 sends, for example, a telegram for performing automatic meter reading, and collects pointer values and the like from the meters 15a-1 ,. The T-NCU 5 switches the connection between the telephone 6 and the controller 7, and also performs automatic communication control. The center 1 and the controller 7, and the controller 7 and the parent devices 11a, 11b, and 11c are connected by wires.

The controller 7 controls communication between the T-NCU 5 and each of the base units 11a, 11b, 11c. The master unit 11a has the slave units 13a-1, ... 13a-4 on the first floor, and the slave units 13a-5, ... 13a-8 on the second floor, and the master unit 11b has the slave unit 13b-1 on the third floor. , ... 13b-4, and slaves 13b-5, ... 13b-8 on the 4th floor, and the master 11c has slaves 13c-1, ... 13c-4 on the 5th floor and 6th floor. The wireless communication is performed with the child devices 13c-5, ... 13c-8. Note that the T-NCU 5, master device 11a, and controller 7 may be integrated. Meter 15a-1,
15a-2 ... is a gas meter, and when receiving a message from the center 1 for, for example, automatic meter reading,
Send the guideline value of gas to the center 1.

The meter may be an electric or water meter. In addition, in this embodiment, the target is a six-story apartment house 9, but the number of floors is not limited to six. In addition, base stations 11a, 11b, 11c are located on alternate floors.
However, the base unit may be installed on every first floor or every third floor. In that case, the master unit on the first floor communicates with the slave units on the first floor or the first to third floors.

FIG. 2 is a block diagram showing the configuration of the controller 7. The controller 7 has a line connection unit 21, a line switching unit 23, a storage unit 24, a control unit 25, and a power supply unit 27.

The line connection unit 21 includes a controller 7 and a TN.
It controls the interface between the CU 5 and the base units 11a, 11b, 11c. The line switching unit 23 is a T-NCU.
5, and which of the parent devices 11a, 11b, 11c is connected to the line is switched. The power supply unit 27 supplies electric power to each unit. The storage unit 24 stores the first table 51 and the like as shown in FIG. The master device 11 is stored in the master device address storage units 53a, 53b, and 53c of the first table 51.
Addresses a, 11b, and 11c are written.

The control unit 25 manages a table, creates a message,
Perform processing such as line control. The table management is to manage the first table 51 that the controller 7 has in the storage unit. That is, the control unit 25 writes or changes the addresses of the master devices 11a, 11b, and 11c in the first table 51. What is message creation?
This is to create a guideline value collection command message message message to be sent to the parent device 11 under the command. Line control means T-NCU5 or base unit 1
Controlling the line formed between 1a, 11b, ...

FIG. 3 is a block diagram showing the configuration of the base unit 11. The base unit 11 includes a line connection unit 31 and a line switching unit 3
3, a radio wave transmitting / receiving unit 35, a storage unit 36, a control unit 37, and a power supply unit 39.

The line connection unit 31 controls the interface with the controller 7. The line switching unit 33 switches between connecting to the line connecting unit 31 to connect to the controller 7 or connecting to the radio wave transmitting / receiving unit 35 to communicate with the child device 13 in charge. Radio wave transmitter / receiver 35
Transmits and receives communication radio waves to and from the child device 13 in charge.
The power supply unit 39 supplies electric power to each unit.

The storage unit 36 stores the second table 61 and the like shown in FIG. The second table 61 includes a base unit call code storage unit 63, a base unit address storage unit 65, a meter ID storage unit 67-1, ... 67-n, a handset device call code storage unit 6.
It consists of 9-1, ... 69-n. Here, it is assumed that n is larger than the number of slave units handled by each master unit 11 in consideration of the addition of slave units.

The base unit call code storage unit 63 stores the base unit call code, the base unit address storage unit 65 stores the base unit address, and the meter ID storage units 67-1, ... The meter ID is stored, and the handset call code storage unit 69-1 ,.
.. 69-n stores the cordless handset call code. The base unit calling code is a number uniquely assigned to the base unit 11 by the Ministry of Posts and Telecommunications and set at the time of factory shipment. Meter ID
Indicates the ID number of the meter 15. The cordless handset call code is a number uniquely assigned to the cordless handset 13 by the Ministry of Posts and Telecommunications and set at the time of factory shipment.

The control unit 37 manages the table, determines the message,
Performs processing such as message creation, line control, next meter reading date and calling date management. The table management is to manage the second table 61 included in the storage unit 36 of the master device 11. That is, the control unit 37 writes or changes the cordless handset call code and the meter ID in the second table 61. The telegram discrimination is to determine whether the radio telegram from the handset 13 is a telegram addressed to itself by comparing the parent machine call code in the message with the parent machine call code registered in the second table 61. It is to make a distinction. The message creation is to create a simultaneous guideline value collection radio message to the child device 13 in charge, or to create an individual guideline value collection radio message, and to create a guideline value collection response message to the controller 7. .
The line control is to control the line formed with the controller 7. The next meter reading date and calling date management means that when the clock of the base unit 11 coincides with the date set by the center 1 or the setting device, the base unit 11 collects the meter reading values and makes a call. It is to be

FIG. 4 is a block diagram showing the configuration of the slave unit 13. The cordless handset 13 includes a line connection unit 41 and a line switching unit 4
3, a radio wave transmitting / receiving unit 45, a storage unit 46, a control unit 47, and a power supply unit 49.

The line connection unit 41 controls an interface with a setting device (not shown) or the meter 15. The line switching unit 43 switches between connecting to the line connecting unit 41 for connecting to the meter 15 or connecting to the radio wave transmitting / receiving unit 45 for communicating with the base unit 11. The radio wave transmission / reception unit 45 transmits / receives communication radio waves to / from the base unit 11. The power supply unit 49 supplies electric power to each unit.

The storage section 46 stores a table 71 of the slaves as shown in FIG. The slave device table 71 includes a slave device call code storage unit 72, a meter ID storage unit 73, a master device call code storage unit 75, and a slave device sequence number 77. The handset call code storage unit 72 stores the handset call code, the meter ID storage unit 73 stores the meter ID, and the handset call code storage unit 7
Reference numeral 5 stores the base unit calling code. The cordless handset call code is a number uniquely assigned to the cordless handset 13 by the Ministry of Posts and Telecommunications and set at the time of factory shipment. Meter ID is meter 1
The ID number of 5 is shown. The base unit calling code is a number uniquely assigned to the base unit 11 by the Ministry of Posts and Telecommunications and set at the time of factory shipment. The slave unit sequence number is a number indicating the order in which the slave units are registered in the second table 61.

The control unit 47 manages the table, determines the message,
Performs processing such as message creation, line control, and random number generation. The table management is the table 7 of the child device of the child device 13.
1 is to be managed. That is, the control unit 47, with respect to the table 71 of the slave unit, the slave unit calling code, the meter ID,
Write or change the master unit call code and slave unit sequence number. The telegram discrimination is to determine whether the radio telegram from the base unit 13 is a self-addressed telegram by comparing the handset call code in the message with the handset call code registered in the handset table 71. It is to make a distinction. Creating a message is the base unit 11
Guide value collection response to be sent to
5 is to create a start-up telegram etc. The line control is to control the line formed with the meter 15. Random number generation means that the handset 13 generates a random number that is a basis for setting the time from when the handset 11 receives the guideline value collection radio message to when the response radio message is sent to the base device 11.

FIG. 8 is a diagram showing a communication sequence among the center 1, the controller 7, the base unit 11a and the child unit 13a in charge thereof, and FIG. 9 shows a communication sequence between the handset 13 and the meter 15. In the figure, FIG. 10 is a diagram showing a communication sequence between the controller 7 and the center 1. 11 is a format diagram of a batch meter reading value request message, and FIG. 12 is a format diagram of a batch meter reading value response message. T _a-1 in FIG. _8, ··· T _a-8 is the slave unit 13a-1, 13a-2
... 13a-8 is the time from receiving the guideline value collecting radio message from the master 11a to sending the response radio message to the master 11a.

As shown in FIG. 8, each of the slave units 13a-1 and 13a-1.
a-2 ... Response time T _a-1 set to 13a-8,
... T _a-8 is different for each child device. The response times T _a-1 , ..., T _a-8 correspond to the slave units 13a- ₁ , 13a-2.
... 13a-8 are control units 47a-1 and 47a-, respectively.
A random number is generated by the random number generation function of 2 ... 47a-8 and set based on the random number. That is, if the random number generated by the handset 13a-1 is "1", T _a-1 = 1x0.05
= 0.05 seconds, and if the random number generated by the child device 13a-2 is "3", Ta _-2 = 3x0.05 = 0.15 seconds.

Next, the operation of this embodiment will be described with reference to FIGS. As described above, the base unit 11
The parent machine call codes of a, 11b, and 11c are stored in the parent machine call code storage units 63a, 63b, and 63c of the second tables 61a, 61b, and 61c at the time of factory shipment, and are displayed on a display unit (not shown). Similarly, the cordless handset call codes of the cordless handsets 13a-1, ...
Are stored in the slave unit call code storage units 72a-1, ..., And displayed on a display unit (not shown).

Various information is registered in each table when the batch meter reading is performed. That is, the master unit address storage unit 53a of the first table 51 of the controller 7
The master device address of the master device 11a is registered in the master device 11a, the master device address of the master device 11b is registered in the master device address storage unit 53b, and the master device address of the master device 11c is registered in the master device address storage unit 53c. There is.

The second table 61a of the master 11a
The master unit address storage unit 65a stores the master unit address, the meter ID storage units 67a-1, ... 67a-8 store the meter IDs of the meters 15a-1, ... 15a-8, and the slave units. .. 68a-8 are registered with the meter slave unit call codes of the slave units 13a-1, ... 13a-8. Regarding the second tables 61b and 61c of the master 11b and the master 11c,
The same information as in the case of the parent device 11a is registered.

Table 71a- of the handset 13a-1
The meter 15a-1 is stored in the first meter ID storage unit 73a-1.
Is stored in the master call code storage unit 75a-1.
The master unit call code of the master unit 11a in charge is the slave unit sequence number storage unit 7
A number indicating the order of registration in the second table 61a is registered in 7a-1. Other cordless handset 13a-
Information similar to that of the child device 13a-1 is registered for 2, ..., 13c-8.

In this embodiment, first, the meter reading values of the meters 15a on the first and second floors that the master unit 11a is in charge of are collected, and then the meter reading values of the meters 15b on the third and fourth floors that the master unit 11b is in charge of are collected. Finally, the meter 1 on the 5th and 6th floors, which the master 11c is in charge of
Collect 5c meter readings.

The center 1 sends a batch meter reading command message to the controller 7 (step 801). In response to this, the controller 7 transmits a batch meter reading command response message to the center 1 (step 802). The center 1 transmits a termination message to the controller 7 (step 803).

The controller 7 first transmits a guideline value collection command message to the master 11a (step 804a). The base unit 11a sends a guideline value collection command response message to the controller 7
(Step 805a). The controller 7
A termination message is transmitted to the master device 11a (step 806).
a).

The master unit 11a transmits a simultaneous guideline value collection radio message including the master unit calling code to all the slave units 13a (step 807a). The slave 13a-1 collates the master call code in the radio message with the master call code stored in the master call code storage unit 75a-1 of the slave table 71a-1. If the collations match, the handset 13a-1 displays the meter 15
The activation message is sent to a-1 (step 808, FIG. 9), and the activation response message including the meter ID and the pointer value is received from the meter 15a-1 (step 809, FIG. 9).

The handset 13a-1 sends a termination message to the meter 15a-1 (step 810, FIG. 9). After receiving the simultaneous guideline value collection radio message from the base unit 11a, a guideline value collection response radio wave including the handset call code, the base unit call code, and the guideline value is transmitted to the base unit 11a after _Ta-1 hours ( Step 8
11a-1).

The handset 13a-2 compares the handset call code in the radio message with the handset call code stored in the handset call code storage section 75a-2 of the handset table 71a-2. If the collations match, the handset 13a-2 displays the meter 15
The activation message is sent to a-2 (step 808, FIG. 9), and the activation response message including the meter ID and the pointer value is received from the meter 15a-1 (step 809, FIG. 9). Handset 13a-
2 sends a termination message to the meter 15a-2 (step 81).
0, FIG. 9). After receiving the simultaneous guideline value collection radio message from the master unit 11a, a guideline value collection response radio wave including the slave unit call code, the master unit call code, and the guideline value is transmitted to the master unit 11a after T _a-2 hours ( Step 811a-2).

Also, the slaves 13a-3, ..., Step 80
The operations from 8a to 811a are performed. For the meter 15 for which the guideline value has not been obtained, the master unit 11a individually transmits a collection command to the corresponding slave unit 11a, and collects the guideline value that has not been obtained.

The base unit 11a has the respective handset units 13a-1 and 13a.
-2, ... 13a-8 stores the pointer value transmitted from the pointer value storage unit 69a of the second table 61a based on the meter ID. For example, the pointer value transmitted from the child device 13a-3 is stored in the pointer value storage unit 69a-3,
The pointer value transmitted from a-7 is the pointer value storage unit 69a-7.
Remember. The main | base station 11a transmits the guideline value collection telegram response telegram which contains the group of the meter ID and guideline value of all the child devices 13a in charge who obtained the guideline value to the controller 7 (step 812a).

Next, the controller 7 transmits a guideline value collection command message to the master 11b (step 804b). The base unit 11b sends the guideline value collection command response message to the controller 7
(Step 805b). The controller 7
A termination message is transmitted to the master device 11b (step 806).
b). After that, the master unit 11b, the slave unit 13b, and the meter 15b
Also performs the operations of steps 807b to 812b.

Finally, the controller 7 transmits a guideline value collection command message to the parent machine 11c (step 804c).
The parent device 11c transmits a guideline value collection command response message to the controller 7 (step 805c). Controller 7
Sends an end telegram to the master device 11c (step 806).
c). After that, the master unit 11c, the slave unit 13c, and the meter 15c
Also performs the operations of steps 807c to 812c.

After the controller 7 collects the pointer values of all the meters 15 from the first floor to the sixth floor, the center 1 sends a batch meter reading value request telegram to the controller 7 in the telegram format shown in FIG. 11 (step 1001). , FIG. 10).
The controller 7 transmits the batch meter reading value request message to the center 1 in the message format shown in FIG. 12 (step 1
001, FIG. 10).

The telegram format shown in FIG. 12 is designed to transmit a maximum of 16 pointer values to the center 1 all at once. Since there are a total of 24 meters in the housing complex 9 that is currently performing batch meter reading, it is not possible to send the guideline values of all the meters in one transmission, and eight guideline values are left. . Therefore, the center 1 again transmits the batch meter reading value request message to the controller 7 in the message format shown in FIG. The controller 7 transmits a batch meter reading value request telegram including the remaining 8 guideline values that could not be sent in the first transmission in the telegram format shown in FIG. 12 to the center 1 (step 1005, FIG. 10). In response to this, the center 1 transmits an end message to the controller 7 (step 1005, FIG. 10).

As described above, according to this embodiment, in the collective housing, the main unit 11 connected to the controller 7 by wire and the slave unit 13 connected to the plurality of meters 15 outside the house on each floor.
It is possible to perform a batch meter reading of a plurality of meters 15 from the center 1 in a communication system capable of wirelessly communicating with the.
Further, the line occupancy time can be shortened as compared with the case where the meter reading values are collected by continuously communicating with a plurality of meters. Therefore, it is possible to reduce the line use cost and reduce the probability of an event that an alarm from the meter or the like is not sent to the center 1 during automatic meter reading.

FIG. 13 shows the base unit 11 in the second embodiment.
It is a figure which shows the communication sequence between a and the subunit | mobile_unit 13a.

In the first embodiment, the master unit 11a sends a guideline value collection command to the slave unit 13a in charge (step 807a), and after the plurality of slave units 13a receive the guideline value collection command, A process of delaying each slave unit by a different time and sending the pointer value of the meter to the master unit (step 811a-1).
The steps 811a-8) to 811a-8) may be performed in the communication sequence shown in FIG.

That is, the master unit 11a transmits the simultaneous guideline value collection radio message including the master unit calling code to the slave unit 13a-1 (step 1301a-1). The slave 13a-1 collates the master call code in the radio message with the master call code stored in the master call code storage unit 75a-1 of the slave table 71a-1. If the collations match, the handset 13a-1 sends an activation message to the meter 15a-1 (step 808,
9), the start response message including the meter ID and the guideline value is received from the meter 15a-1 (step 809, FIG. 9). The cordless handset 13a-1 sends a termination message to the meter 15a-1 (step 810, FIG. 9), and the cordless handset call code is sent to the cordless handset 11a.
A guideline value collection response radio wave including the base unit calling code and the guideline value is transmitted (step 1302a-1).

Next, the base unit 11a transmits the simultaneous guideline value collection radio message including the base unit calling code to the handset unit 13a-2 (step 1301a-2). The child device 13a-1 collates the parent device calling code in the radio message with the parent device calling code stored in the parent device calling code storage unit 75a-2 of the child device table 71a-2. If the collations match, the handset 13a-2 sends an activation message to the meter 15a-2 (step 808,
9), the start response message including the meter ID and the guideline value is received from the meter 15a-2 (step 809, FIG. 9). The handset 13a-2 sends a termination message to the meter 15a-2 (step 810, FIG. 9). The child device 13a-2 is the parent device 11a.
A handset value collection response radio wave including a handset call code, a base unit call code, and a handset value is transmitted to the terminal (step 1302a-
2).

Similarly, the base unit 11a has a handset unit 13a-3,
... The simultaneous guideline value collection radio telegrams are sequentially transmitted to 13a-8 (step 1301a-3, ... Step 1301).
a-8), the cordless handset call code, the cordless handset call code, and the guideline value collection response radio wave including the guideline value are obtained (step 1302a).
-3, ... Step 1302a-8).

For the meter 15a for which the pointer value cannot be obtained, the retry is repeated a specific number of times. If the guideline value has not been obtained even after a certain number of retries, only the obtained guideline value is sent to the center 1.

The master unit 11a and the slave unit 13a which the master unit 11a is in charge of have been described above, but the master unit 11b and the master unit 1 are described.
1b is in charge of the child device 13b, the parent device 11c and the parent device 11
The child device 13c in charge of c performs the same operation.

[0053]

As described above in detail, according to the present invention, it is possible to provide a collective meter reading method in a housing complex or the like in which the line occupation time is short.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of a communication system according to a first invention and a second invention.

FIG. 2 is a block diagram showing a configuration of a controller 7.

FIG. 3 is a block diagram showing the configuration of the base unit 11.

FIG. 4 is a block diagram showing a configuration of a child device 13.

FIG. 5 is a diagram showing a first table included in the controller 7.

FIG. 6 is a diagram showing a second table included in the master device 11.

FIG. 7 is a diagram showing a table included in the child device 13.

FIG. 8 is a diagram showing a communication sequence among the center 1, the controller 7, the parent device 11a, and the child device 13a in charge thereof.

FIG. 9 is a diagram showing a communication sequence between the handset 13 and the meter 15.

FIG. 10 is a diagram showing a communication sequence between the controller 7 and the center 1.

FIG. 11: Format diagram of batch meter reading request message

FIG. 12 Format diagram of batch meter reading response message

FIG. 13 is a parent device 11a and a child device 1 according to the second embodiment.
The figure which shows the communication sequence with 3a

[Explanation of symbols]

1 ... Center 3 ... Exchange 4 ... Public line 5 ... T-NCU 6 ... Telephone 7 ... Controller 11 ... Base unit 13 ... cordless handset 15 ... meter 21 ... Line connection 23 ... Line switching unit 24 ... Storage unit 25 ... Control unit 27 ... Power supply 31 ... Line connection 33 ... Line switching unit 35 ... Radio wave transceiver 36 ... Storage unit 37 ... Control unit 39 ... Power supply unit 41 ... Line connection 43 ... Line switching unit 45 ... Radio wave transmitter / receiver 46 ... Storage unit 47 ... Control unit 49 ... Power supply 51 ... first table 53 ... Base unit address storage unit 61 ... Second table 63 ... Parent device call code storage unit 65 ... Base unit address storage unit 67 ... Meter ID storage unit 69 ... cordless handset call code storage unit 71 ... Table of child machine 72 ... Handset call code storage unit 73 ... Meter ID storage unit 75 ... Handset call code storage unit 77 ... Slave unit sequence number storage

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Jun Fujiwara 2-47-6 Arai, Nakano-ku, Tokyo (56) References JP-A-62-199162 (JP, A) JP-A-57-34295 (JP, A) ) JP-A-3-117998 (JP, A) JP-A-1-176196 (JP, A) Actually developed 64-16781 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) H04M 11/00-11/10 H04Q 9/00

Claims (6)

(57) [Claims] 1. A computer connected to a center via a public line.
Multiple master units connected to the tracker by wire and each master unit
It is provided with a child device installed in each of a plurality of corresponding terminal devices.
Wireless communication between the master unit and the slave unit.
Enables communication between the center and the plurality of terminal devices.
In the communication system for performing the above, the center has the plurality of terminals.
A batch meter reading method for batch meter reading of devices, (A) The center issues a batch meter reading command to the controller.
The sending process, (B) The controller issues a guideline value collection command to the master unit.
The sending process, (C) The master unit collectively collects the guideline value with the slave unit in charge.
A step of sending a collection instruction, (D) The plurality of slave units receive the guideline value collection command.
From each child machineIt was set by generating a random numberAt different times
The guideline value of the terminal device is sent to the master device with a delay of
Process,(E) The parent device is a terminal device for which the guideline value has not been obtained.
For this reason, the collection command is sent individually to the corresponding slave unit and the guideline value
And the step of collecting (F) The parent device sets the guideline value of the terminal device to the control value.
The process of sending to (G) The controller performs step (b) for each parent device.
~(F)And the process of repeating (H) The controller collectively includes the plurality of terminal devices
Sending the guideline value of the above to the center, A batch meter reading method comprising: 2. The batch meter reading method according to claim 1, wherein the step (e) is repeated a specific number of times. 3. A computer connected to the center via a public line.
Multiple master units connected to the tracker by wire and each master unit
It is provided with a child device installed in each of a plurality of corresponding terminal devices.
Wireless communication between the master unit and the slave unit.
Enables communication between the center and the plurality of terminal devices.
In the communication system for performing the above, the center has the plurality of terminals.
A batch meter reading method for batch meter reading of devices, (A) The center issues a batch meter reading command to the controller.
The sending process, (B) The controller issues a guideline value collection command to the master unit.
The sending process, (C) The master unit collectively collects the guideline value with the slave unit in charge.
A step of sending a collection instruction, (D) The plurality of slave units receive the guideline value collection command.
From each child machineIt was set by generating a random numberAt different times
The guideline value of the terminal device is sent to the master device with a delay of
Process, (E) The parent device sets the guideline value of the terminal device to the controller.
The process of sending to (F) The controller performs step (b) for each parent device.
A step of repeating (e), (G) The controller,PreviousMultiple terminal devicesGuidelines
Specific number of valuesSending the guideline value of the above to the center,(H) There is a guideline value that could not be sent to the center.
In case of the
Send a command and the controller cannot send
Sending the indicated guideline value to the center, A batch meter reading method comprising: 4. The batch meter reading method according to claim 1, wherein the terminal device is a gas meter. 5. The batch meter reading method according to claim 1, wherein the terminal device is an electric meter. 6. The batch meter reading method according to claim 1, wherein the terminal device is a water meter.