JP4501535B2 - Wireless slave unit and wireless master unit - Google Patents

Description

The present invention relates to a wireless slave device that detects duplication of meter management IDs in automatic meter reading radio when performing meter reading of usage amounts of gas, water, electricity and the like.

  Conventionally, an automatic meter reading system that collects data recorded in meters for measuring usage of gas, water, electricity, etc. in homes, offices, factories, etc. to a center that is a remote metering meter device via a communication line such as a telephone. In this automatic meter reading system, for example, a telephone line and a meter installed in each consumer are connected by a communication line, and communication is performed between the center and the meter via the telephone line. .

  By the way, in the case of such an automatic meter reading system, it is necessary to connect a telephone line and a meter with a communication line, so that labor and cost for routing and wiring the communication line inside and outside the customer are required. In particular, when the telephone line and the meter are separated from each other, this wiring work is a considerable burden, and in the case of an existing house, the wiring is sometimes impossible.

  Therefore, a wireless master unit is connected to each customer's telephone line via a terminal network controller (hereinafter referred to as “T-NCU”), and a wireless slave unit is connected to the meter. An automatic wireless meter-reading system that eliminates the need for indoor and outdoor wiring has been proposed (see, for example, Patent Document 1).

  FIG. 3 shows a conventional automatic wireless meter reading system described in Patent Document 1. In FIG.

  In FIG. 3, 31 is a center, 32 is a public telephone line, 33 is a customer, 34 is a terminal network control device, 35 is a wireless master unit, has a transmission / reception circuit, and the center 31 and the T-NCU 34 are public telephones. The T-NCU 34 and the wireless master device 5 are connected by a communication line 38a. Reference numeral 36 denotes a wireless slave unit which has a transmission / reception circuit and is connected to an automatic meter-reading meter 37 via a communication line 38b. The wireless master device 35 and the wireless slave device 36 can communicate with each other wirelessly, and information in the automatic meter-reading meter 37 is transmitted from the wireless slave device 36 to the wireless master device 35.

  From the center 31, the wireless master unit 35 is driven via a terminal network control unit (T-NCU) 34 installed in the consumer 33 through the public telephone line 32, and the wireless master unit 35 is changed to the wireless slave unit 36. On the other hand, a radio signal is sent.

  When receiving the signal from the wireless master device 35, the wireless slave device 36 takes out the weighing information stored in the automatic meter-reading meter 37, and transmits this information to the wireless master device 35 wirelessly. The wireless master device 35 sends the information received from the wireless slave device 36 to the center 31 via the T-NCU 34 and the public telephone line 32.

As a result, it is not necessary to wire the meter for automatic meter reading in the building, the construction is simplified and the aesthetic appearance of the building is not impaired. In addition, when an automatic meter reading system is applied later, particularly in an existing apartment house or tenant building, it is not necessary to perform wiring work or the like for each meter, so that the automatic meter reading system can be easily realized.
Japanese Patent Laid-Open No. 6-85938

By the way, in such a system, the registration operation of the wireless master device and the wireless slave device is performed by inputting a predetermined operation, for example, a switch for starting the wireless slave device and the wireless master device at the same time after connecting the wireless slave device and the meter. When the slave unit acquires the meter management ID from the meter, transmits the acquired meter management ID to the wireless master unit by wireless transmission, and when the wireless master unit acquires the meter management ID from the wireless slave unit, the master unit has the next Communication information necessary for wireless communication is transmitted to the wireless slave unit. As a result, the registration work of the wireless master device and the wireless slave device is completed, and communication from the center, which is a distance measuring meter device, to the meter is enabled thereafter.

However, after these registration work, it is possible to communicate from the center that is a remote metering meter device, but by preparing a duplicate meter with the same meter management ID by mistake at the time of setting, There was a possibility that the wireless slave unit having the same meter management ID would be duplicated by replacing the wireless slave unit for some reason and connecting to another meter.

  In this way, when there are two or more wireless slave devices having the same meter management ID, the wireless master device attempts to respond simultaneously to the request signals from the wireless master device and fails to transmit to each other or transmits the wireless master devices simultaneously. There may be a problem that the machine cannot receive.

  Such duplication of meter management ID is difficult to detect easily, and it is very difficult to detect the cause of communication failure in wireless communication at the work site. It had the problem of end.

The present invention solves the above-described conventional problems, and can easily find duplication of meter management IDs during wireless communication of an automatic meter-reading wireless system, thereby improving the reliability when the automatic wireless meter-reading system is installed. an object of the present invention is to provide a radio personal station that can.

In order to achieve the above-mentioned problem, the meter information obtained by being connected to the meter of the customer's home is connected in response to a wireless request from the wireless master device connected to the distance measuring needle device via the line. In the wireless slave device that performs meter reading by wireless transmission to the wireless master device, the slave wireless transmitter / receiver that transmits and receives wireless communication data to and from the wireless master device, and the own device specified by the meter A storage unit for storing a meter management ID for specifying, an ID detection unit for monitoring a meter management ID transmitted from another wireless slave unit by the slave unit wireless transmission / reception unit, and a display unit for displaying a plurality of error patterns And the ID duplication detection unit compares the meter management ID stored in the storage unit with the meter management ID transmitted from another wireless slave unit to determine whether or not they match. ID is duplicated when confirmed Detected as error, the performing the display of the ID duplication error pattern to the display unit by a radio personal station which was characterized by a duplication of the meter management ID can be easily found, the automatic wireless meter reading system Reliability during installation can be increased .

  The wireless master device receives meter management ID and ID duplication error information from the wireless slave device, responds to the wireless slave device, and registers the slave device information necessary for communication with the opposing wireless slave device Control unit, storage unit for storing the meter management ID acquired from the wireless slave unit in the registration work, and a display unit for displaying a plurality of error patterns, when ID duplication error information is received from the wireless slave unit, The control unit controls the display unit to display the ID duplication error pattern.

Furthermore, in this radio personal station, the radio personal station, when detecting the same meter management ID and meter management ID own device is acquired by the ID detection unit, base unit wireless transceiver of the wireless master unit from the slave unit wireless transceiver The wireless master unit has a line communication unit that communicates with the base unit wireless transmission / reception unit that receives wireless reception data from the wireless slave unit and the remote meter reading device, and communicates with the remote meter reading device via the line. To do.

As a result, when there is a wireless slave unit having the same meter management ID, it is possible to easily find an ID duplicate by displaying an error of duplicate ID on the display unit of the wireless slave unit, and cause a communication failure in wireless communication. Can be detected. The wireless slave unit wirelessly transmits ID duplication information from the slave unit wireless transceiver unit to the master unit wireless transceiver unit of the wireless master unit, and when the wireless master unit receives ID duplication detection data from the wireless slave unit, a plurality of error patterns are received. It is also possible to display an ID duplication error pattern on the display unit for displaying.

The wireless slave device of the present invention monitors the meter management ID by the ID detection unit , and when the same meter management ID as the meter management ID acquired by the own device is detected, an error pattern is displayed from the display unit, thereby causing data communication failure. It becomes possible to analyze. It is also possible to display the ID duplication error pattern to the display unit for displaying a plurality of error patterns receives the ID duplicate detection data from the radio personal station in the radio base-side. Furthermore, since the information on ID duplication can be communicated to the distance measuring meter device via the wireless master unit and the line, the cause of the data communication failure can also be known on the side of the distance measuring meter device.

With the wireless slave device of the above invention, the cause of communication failure during wireless communication can be easily identified, and the reliability can be improved.

The first invention, in order to attain the aforementioned object, is connected to the meter demand home, the meter information obtained by connected thereto that, from the radio base unit which is connected to the隔測needle device via the line In response to the wireless request, in the wireless slave device that performs meter reading by wireless transmission to the wireless master device, the slave wireless transmitter / receiver that transmits and receives wireless communication data to and from the wireless master device, and the meter A storage unit for storing a meter management ID for identifying the specified own device, an ID detection unit for monitoring a meter management ID transmitted from another wireless slave unit by the slave unit wireless transmission / reception unit, and a plurality of errors A display unit that displays a pattern, and the ID duplication detection unit compares the meter management ID stored in the storage unit with a meter management ID transmitted from another wireless slave unit to make a match examined whether or not a match confirmation of That when detected as ID duplication error, I relative to the display unit
It is a wireless slave unit characterized by displaying a D duplication error pattern. It can easily check for ID duplication and can easily display ID duplication errors .

2nd invention WHEREIN : The said radio | wireless transmission / reception part compares the meter management ID memorize | stored in the said memory | storage part with the meter management ID transmitted from the other radio | wireless subunit | mobile_unit, and when the said radio | wireless transmission / reception part corresponds. , with that radio personal station according to claim 1, wherein the said of transmitting the information indicating that the ID is duplicated to the wireless master unit, check the ID duplication error will be able to even the radio base-side .

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 is a block diagram of an automatic wireless meter reading system according to the first embodiment of the present invention.

  In FIG. 1, the remote meter reading device 1 is connected to the wireless master device 5 from the line 2 via the T-NCU 4. The wireless slave device 6 is provided facing the wireless master device 5 and connected to the meter 7.

  Reference numeral 14 denotes a master unit radio transmission / reception unit of the opposite radio master unit 5, 8 a slave unit radio transmission / reception unit that transmits / receives data to / from the radio master unit 5, and 9 a meter transmission / reception unit that communicates with the meter 7 by wire. 10 transmits the meter management ID acquired from the meter 7 to the opposing wireless master device 5 when a predetermined operation is executed, and the opposing wireless master device 5 only when there is a response from the wireless master device 5 A control unit that performs registration processing of parent device information necessary for communication with the storage unit, a storage unit 13 that stores a meter management ID acquired from the meter 7 and wireless parent device information acquired from the wireless parent device in a registration operation, 11 Is an ID duplication detection unit that monitors the meter management ID by the slave unit wireless transmission / reception unit 8 and detects the same meter management ID acquired by the own unit, and 12 is a display unit that displays a plurality of error patterns.

  In the case of automatic meter reading from the center, a meter reading request of the meter 7 is transmitted from the distance measuring meter device 1 to the wireless master device 5 via the line 2 and the T-NCU 4, and the wireless master device 5 transmits to the wireless slave device 6. A meter reading request is wirelessly transmitted, and the wireless slave device 6 transmits a meter reading request to the meter 7. When receiving the meter reading response from the meter 7, the wireless slave device 6 wirelessly transmits a meter reading response to the wireless master device 5, and transmits the meter reading response from the wireless master device 5 to the distance measuring meter reading device 1 via the T-NCU 4. . In this way, the meter reading value of the meter 7 can be intensively read at the center.

  The ID duplication detection unit 11 of the control unit 10 always monitors the wireless communication data even in communication not addressed to its own device, and when the meter management ID same as the meter management ID acquired by the own device is detected in the communication message, In order to notify that there are other wireless slave devices having the same meter management ID as the device, the display unit 12 is controlled to display an ID duplication error pattern. This error pattern is easy to judge if it is displayed in a different error pattern from the case of failure during normal registration.

  As described above, even when there are two or more wireless slaves having the same meter management ID by mistake, it is possible to easily detect ID duplication, so that automatic wireless meter reading can be performed with peace of mind.

(Embodiment 2)
FIG. 2 is a block diagram of an automatic wireless meter reading system according to the second embodiment of the present invention. The same number is attached | subjected to the same thing as FIG.

  In FIG. 2, the remote meter reading device 1 is connected to the wireless master device 5 from the line 2 via the T-NCU 4. The wireless slave device 6 is provided facing the wireless master device 5 and connected to the meter 7.

As in FIG. 1, reference numeral 14 denotes a base unit radio transmission / reception unit of the opposite radio base unit 5, 8 a slave unit radio transmission / reception unit that transmits / receives data to / from the radio base unit 5, and 9 a wired connection with the meter 7 The meter transmitting / receiving unit 10 that performs communication transmits the meter management ID acquired from the meter 7 to the opposite wireless master device 5 when a predetermined operation is executed, and only when there is a response from the wireless master device 5 Opposing wireless master unit 5
A control unit that performs registration processing of parent device information necessary for communication with the storage unit, a storage unit 13 that stores a meter management ID acquired from the meter 7 and wireless parent device information acquired from the wireless parent device in a registration operation, 11 Is an ID duplication detection unit that monitors the meter management ID by the slave unit wireless transmission / reception unit 8 and detects the same meter management ID acquired by the own unit, and 12 is a display unit that displays a plurality of error patterns. Reference numeral 15 is a control unit of the wireless master unit, 16 is a display unit for displaying a plurality of error patterns on the master unit, and 17 is a storage unit for storing a meter management ID received from the wireless slave unit.

  In the case of automatic meter reading from the center, a meter reading request of the meter 7 is transmitted from the distance measuring meter device 1 to the wireless master device 5 via the line 2 and the T-NCU 4, and the wireless master device 5 transmits to the wireless slave device 6. A meter reading request is wirelessly transmitted, and the wireless slave device 6 transmits a meter reading request to the meter 7. When receiving the meter reading response from the meter 7, the wireless slave device 6 wirelessly transmits a meter reading response to the wireless master device 5, and transmits the meter reading response from the wireless master device 5 to the distance measuring meter reading device 1 via the T-NCU 4. . In this way, the meter reading value of the meter 7 can be intensively read at the center.

  The ID duplication detection unit 11 of the control unit 10 always monitors the wireless communication data even in communication not addressed to the own device, and if the same meter management ID as the meter management ID acquired by the own device is detected in the communication message, In order to notify the display unit 16 that there are a plurality of wireless slave units having the same meter management ID received from the slave unit radio transmitter / receiver unit 8 of the slave unit 5 by the master unit radio transmitter / receiver unit 14 of the wireless master unit 5. Control to display duplicate error patterns. Furthermore, the wireless master unit receives the meter management ID from the wireless slave unit, responds to the wireless slave unit, performs registration processing of slave unit information necessary for communication with the opposite wireless slave unit, and registers In the work, the meter management ID acquired from the wireless slave unit is stored, and when the ID duplication error information is received from the wireless slave unit, the ID duplication error pattern of the wireless slave unit is displayed on the display unit. This error pattern is easy to judge if it is displayed in a different error pattern from the case of failure during normal registration.

  As described above, even if there are two or more wireless slave units with the same meter management ID by mistake, it is possible to easily know the ID overlap by displaying the error pattern on the display unit of the wireless master unit. Wireless meter reading can be performed.

  Furthermore, when the wireless slave unit detects the same meter management ID as the meter management ID acquired by the own device in the ID duplication detection unit, wireless transmission is performed from the slave unit radio transceiver unit to the master unit radio transceiver unit of the wireless master unit. Therefore, the wireless master unit communicates the wireless reception data from the wireless slave unit to the remote metering meter device via the line, so that the ID duplication error can be confirmed also on the remote metering meter device side, so the data communication failure can be analyzed. become able to.

  As described above, the automatic wireless meter reading system according to the present invention facilitates ID duplication with the error pattern of the display unit of the wireless slave unit even when there are two or more wireless slave units having the same meter management ID by mistake. Because it can know, automatic wireless meter reading can be performed with confidence.

  Also, since the ID overlap can be easily known by the error pattern display on the display unit of the wireless master device, the wireless master device can perform automatic wireless meter reading with peace of mind.

  Furthermore, when the wireless slave unit detects the same meter management ID as the ID management unit acquired by the ID duplication detection unit, the wireless slave unit wirelessly transmits from the slave unit wireless transceiver unit to the base unit wireless transceiver unit of the wireless master unit. The wireless master unit communicates the wireless reception data from the wireless slave unit to the remote metering meter device via the line, so that the ID duplication error can be confirmed on the remote metering device side, so that the data communication failure can be analyzed. Become.

Note that the means described in this embodiment causes hardware resources such as a CPU (or microcomputer), a RAM, a ROM, a storage / recording device, an electrical / information device including an I / O, a computer, a server, and the like to cooperate. You may implement with the form of a program. In the form of a program, new functions can be easily distributed / updated and installed by recording them on a recording medium such as magnetic media or optical media or distributing them using a communication line such as the Internet.

  Since the present invention can be applied to any wireless communication system that uses an ID that should not be duplicated, such as a meter management ID, it can also be applied to uses other than automatic wireless meter reading.

Block diagram of an automatic wireless meter reading system according to Embodiment 1 of the present invention Block diagram of an automatic wireless meter reading system according to Embodiment 2 of the present invention Block diagram of a conventional automatic wireless meter reading system

1, 31 Remote measuring device (center)
2, 32 Public telephone line 4, 34 T-NCU
5, 35 Wireless master unit 6, 36 Wireless slave unit 7, 37 Meter 8 Slave unit radio transceiver unit 9 Meter transceiver unit 10 Control unit (slave unit)
11 ID duplication detection part 12 Display part (child machine)
13 Memory unit (slave unit)
14 Base unit wireless transceiver 15 Control unit (base unit)
16 Display (base unit)
17 Storage unit (base unit)
33 consumers

Claims (2)

The meter information obtained by connecting to the meter at the consumer's home is wirelessly transmitted to the wireless master device in response to a wireless request from the wireless master device connected to the remote meter reading device via a line. In the wireless slave that performs meter reading,
A handset wireless transmission / reception unit for transmitting / receiving wireless communication data to / from the wireless base unit;
A storage unit for storing a meter management ID for identifying the device specified from the meter;
An ID detector for monitoring a meter management ID transmitted from another wireless slave in the slave wireless transmitter / receiver;
A display unit for displaying a plurality of error patterns ;
The ID duplication detection unit compares the meter management ID stored in the storage unit with the meter management ID transmitted from another wireless slave unit , and checks whether or not they match. A wireless slave that detects an ID duplication error and displays an ID duplication error pattern on the display unit. The wireless transmission / reception unit compares the meter management ID stored in the storage unit with the meter management ID transmitted from another wireless slave when the ID detection unit matches,
The wireless slave device according to claim 1, wherein information indicating that the ID is duplicated is transmitted to the wireless master device.

Images