KR102064470B1 - Remote meter reading system, remote meter reading device and remote meter reading method - Google Patents

Abstract

The present invention can significantly reduce the number of signals (packets) for remotely reporting and receiving control commands compared to the increase in the number of meters, while preventing the deterioration in the quality of service that may be caused by the Internet of Things (IoT). By realizing the remote meter reading service using the technology, a technology that guarantees high performance and stable service quality while reducing the network load is disclosed.

Description

REMOTE METER READING SYSTEM, REMOTE METER READING DEVICE AND REMOTE METER READING METHOD}

The present invention relates to a remote meter reading technology, and more particularly, to a technology capable of realizing a remote meter reading service using Internet of Things (IoT) technology while reducing network load while ensuring high performance and stable service quality.

In the case of multi-family houses, townhouses, and the like, multi-unit digital meters (hereinafter, referred to as "meters") are often installed adjacent to each other outdoors.

If you want to realize a remote meter reading service that can check and check the weighing value and status, etc. for such a meter remotely, it is necessary to report the weighing value and status to each meter remotely and to receive a control command if necessary. Wireless metering module should be built in, or remote meter reading device supporting wireless communication function to report meter value and status and receive control command if necessary for each meter should be installed separately.

In the conventional remote meter reading environment as described above, since it is difficult to always supply power to each meter (wireless communication module built-in) or a remote meter reading device, the battery is used as a power source.

However, in the conventional remote meter reading environment, as the number of meters increases, the number of signals (packets) transmitted / received wirelessly also increases as the number of wireless communication modules or separately installed remote metering devices increases in proportion thereto. And there is a problem leading to an increase in the load of the network.

Recently, Internet of Things (IoT) technology, which connects things in everyday life through wired / wireless networks and shares information, has been attracting attention, and as a part, each meter (wireless communication module) or remote meter reading Remote meter reading service using Internet of Things (IoT) technology that can minimize battery power consumption of consumer devices has also appeared.

However, the current remote meter reading service using the Internet of Things (IoT) technology, there is a problem that the network load increases in proportion to the increase in the number of meters.

Accordingly, the present invention provides a new type of remote meter reading service method (technology) using the Internet of Things (IoT) technology, which can guarantee a high performance and stable service quality while significantly reducing the network load increase compared to the increase in the number of meters. I would like to suggest.

The present invention was created in view of the above circumstances, and an object of the present invention is to realize a remote meter reading service by using the Internet of Things (IoT) technology, while ensuring a high performance and stable service quality while reducing network load. It is.

Remote meter reading system according to a first aspect of the present invention for achieving the above object, a plurality of meters; A remote metering terminal for generating one uplink packet using data collected from the plurality of meters connected to a plurality of communication ports, and transmitting the uplink packet at a reporting time according to a preset reporting period; And transmitting data of each of the plurality of meters included in the uplink packet received through at least one base station to a central server, and selecting a downlink packet in response form to the uplink packet from among the at least one base station. It includes a network device for transmitting to a specific base station to be transmitted to the remote meter reading terminal.

In detail, when the remote meter reading terminal recognizes a specific meter in which alarm data requiring control from a central server is collected based on the collected data, the remote meter reading terminal identifies a specific identifier in an uplink packet generated using the alarm data. Including, the network apparatus may be configured to receive a control command for the specific meter from the central server and to transmit a downlink packet including the control command when the uplink packet of the specific identifier is received.

Specifically, when the remote meter reading terminal recognizes a specific meter that collects the alarm data required to control from the central server based on the collected data, by changing the reporting period to a shorter time than the previous reporting period The reporting time for generating and transmitting the next uplink packet can be faster than before changing the reporting period.

According to a second aspect of the present invention, there is provided a remote reading terminal device, the collecting unit for collecting data from a plurality of meters, each connected to a plurality of communication ports, according to a preset reporting period; Transmitting an uplink packet to transmit data of each of the plurality of meters included in the uplink packet to a central server through a network device, and downlink time interval of a predetermined time unit limited to a specific number of times after transmitting the uplink packet. Communication unit for receiving a downlink packet in the; And a controller configured to generate and transmit one uplink packet to the communication unit by using the data collected by the collection unit, so that the uplink packet is transmitted at the reporting time according to the reporting period.

In detail, the controller may include a specific identifier in an uplink packet generated using the alarm data when the specific meter in which alarm data requiring control from the central server is collected based on the collected data is recognized. Thus, when the network device receives the uplink packet of the specific identifier, the network apparatus may receive a control command for the specific meter from the central server and transmit a downlink packet including the control command.

Specifically, when the control unit recognizes a specific meter on which alarm data requiring control from the central server is collected based on the collected data, the controller changes the reporting period to a time shorter than the previous reporting period, Reporting time for generating and transmitting uplink packets can be faster than before changing the reporting period.

Specifically, the next uplink packet may include response data according to a result of performing the control command with respect to the specific meter.

In detail, the controller may restore the report period when the specific meter is not recognized based on the collected data.

Specifically, the controller, when the control signal is applied through a specific communication port of the plurality of communication ports within a predetermined time after the power-on (On) or reset (Reset) of the remote metering terminal device, for updating the firmware You can switch to a specific mode.

Specifically, the remote sensor further comprises a temperature sensor for sensing the temperature around the device; The control unit includes temperature data sensed by the temperature sensor in an uplink packet, and whether a central server receiving the temperature data included in the uplink packet is freeze dangerous for a plurality of meters connected to the remote metering terminal device. To judge.

According to a third aspect of the present invention, there is provided a method of operating a remote reading terminal device, the collecting method comprising: collecting data from a plurality of meters each connected to a plurality of communication ports according to a preset reporting period; A generation step of generating one uplink packet using the collected data; A transmission step of transmitting the generated uplink packet at a reporting time according to the reporting period, so that data of each of the plurality of meters included in the uplink packet is transmitted to a central server through a network device; And a receiving step of receiving a downlink packet in a downlink time interval of a predetermined time unit limited to a specific number after transmitting the uplink packet.

Specifically, in the generating step, when the specific meter that collects the alarm data required to control from the central server based on the collected data is recognized, the specific identifier is assigned to the uplink packet generated using the alarm data. The network apparatus may receive a control command for the specific meter from the central server and transmit a downlink packet including the control command when the network device receives the uplink packet having the specific identifier.

In detail, when the specific meter in which the alarm data requiring control from the central server is collected based on the collected data is recognized, the reporting cycle is changed to a time shorter than the previous reporting cycle to generate the next uplink packet. And causing the reporting time point to be transmitted to be faster than before the change in the reporting period.

Specifically, the next uplink packet may include response data according to a result of performing the control command with respect to the specific meter.

Specifically, when the specific meter is not recognized based on the collected data, the method may further include restoring the reporting period.

Specifically, when a control signal is applied through a specific communication port of the plurality of communication ports within a predetermined time after a power-on or reset of the remote metering terminal device, it switches to a specific mode for firmware update. It may further comprise the step.

Specifically, in the generating step, by including the temperature data from the temperature sensor for sensing the temperature around the remote metering terminal device in the uplink packet, the central server receiving the temperature data included in the uplink packet is remote It is possible to determine the risk of freezing of the multiple meters connected to the meter terminal device.

Therefore, according to the remote meter reading system of the present invention, the method of operating the remote meter reading device and the remote meter reading device applied to the system, the number of signals (packets) for the remote report and control command reception compared to the increase in the number of meters By realizing remote meter reading service using Internet of Things (IoT) technology, which significantly reduces the increase and prevents the degradation of service quality that may be caused by it, the network load is reduced and high performance and stable service quality are ensured. Can be derived.

1 is an exemplary view showing the structure of a remote meter reading system according to an embodiment of the present invention.
Figure 2 is a block diagram showing the configuration of a remote meter reading terminal apparatus according to an embodiment of the present invention.
3 is an exemplary view showing a flow of performing a remote meter reading in the remote meter reading system according to an embodiment of the present invention.
4 is a flowchart illustrating a method of operating a remote meter reading terminal device according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention.

1 is an exemplary diagram showing a structure of a remote meter reading system according to the present invention in an Internet of Things (IoT) network to which the present invention is applied.

As can be seen in Figure 1, in the case of multi-family housing, townhouses, such as multi-family houses, digital meters (hereinafter, meters) of each generation are often installed adjacent to each other outdoors.

If you want to realize a remote meter reading service that can check and check the weighing value and status, etc. for such a meter remotely, it is necessary to report the weighing value and status to each meter remotely and to receive a control command if necessary. Wireless metering module should be built in, or remote meter reading device supporting wireless communication function to report meter value and status and receive control command if necessary for each meter should be installed separately.

In the conventional remote meter reading environment as described above, since it is difficult to always supply power to each meter (wireless communication module built-in) or a remote meter reading device, the battery is used as a power source.

However, in the conventional remote meter reading environment, as the number of meters increases, the number of signals (packets) transmitted / received wirelessly also increases as the number of wireless communication modules or separately installed remote metering devices increases in proportion thereto. And there is a problem leading to an increase in the load of the network.

Recently, Internet of Things (IoT) technology, which connects things in everyday life through wired / wireless networks and shares information, has been attracting attention, and as a part, each meter (wireless communication module) or remote meter reading Remote meter reading service using Internet of Things (IoT) technology that can minimize battery power consumption of consumer devices has also appeared.

Briefly describing the structure of the Internet of Things (IoT) network, an IoT terminal for transmitting data (IoT terminal), a customer terminal (not shown) installed with an IoT app for checking the data of the IoT terminal and controlling the IoT terminal, IoT base station (10,20, ..) that performs a packet transmission and reception between the network device 200, the IoT terminal and the network device 200 for connecting between the IoT terminal and the customer terminal (IoT app) via a wired or wireless network. .60).

In the IoT technology, the IoT terminal relatively transmits (transmits) data (uplink packets) through a randomly selected channel among a plurality of channels used for packet transmission and reception at predetermined reporting cycles. It works with a simple uplink packet transmission scheme.

On the other hand, the IoT terminal, in order to minimize battery power consumption, a relatively limited downlink packet, which can receive the downlink packet only in a certain time unit downlink time period limited to a certain number of times after data transmission (uplink packet transmission). It works by the reception method.

For example, assuming that a certain time is 1 second, a specific number of times is 2, and a time interval between time intervals is 1 second, the IoT terminal transmits (transmits) data (uplink packet) when a preset reporting period arrives. In addition, the downlink packet can be received in the first downlink time interval DL1 1 second after the uplink packet transmission completion time, and up to 1 second after the downlink DL1 when the downlink is not received. The downlink packet can be received in the second downlink time interval DL2 three seconds after the link packet transmission completion time.

When the downlink packet is successfully received in DL1 or DL2 after transmitting the uplink packet, the IoT terminal waits in the sleep state until the next report period arrives and transmits (transmits) the next data (uplink packet). If the downlink packet reception fails in both the and DL2, the uplink packet (data) retransmission process is performed according to a predetermined rule before this reporting period elapses.

The above-described limited downlink packet reception method is used in IoT technology (LoRa: Long Range), which is specialized in low-speed transmission (<1kbps) and small data transmission supporting low power for wide area coverage among IoT technologies. IoT terminal is mainly adopted / operated.

As can be seen from the above, the remote meter reading service using the current Internet of Things (IoT) technology, each meter (wireless communication module built-in) or remote meter reading devices based on the IoT (IoT) technology based on the metering value per report cycle And a method of transmitting data (uplink packets) such as status, which can minimize battery power consumption due to limited downlink packet reception. However, as the number of meters increases, the load of the network increases proportionally. there is a problem.

Accordingly, the present invention provides a new type of remote meter reading service method (technology) using the Internet of Things (IoT) technology, which can guarantee a high performance and stable service quality while significantly reducing the network load increase compared to the increase in the number of meters. I would like to suggest.

Specifically, as shown in Figure 1, the remote meter reading system according to an embodiment of the present invention, a plurality of meters, remote meter reading terminals (100a, 100b, ...) and a plurality of IoT base stations (10, 20,... 60), the network device 200 and the central server 300.

The plurality of meters refers to digital meters of each generation, and in the case of a multi-family house / rowhouse, such as a multi-unit house, a plurality of meters are installed adjacent to each other in units of houses.

In FIG. 1, for convenience of explanation, a plurality of meters 1a, 2a, .. .Na are assumed to be meters of a multi-unit house installed adjacent to each other, and a plurality of meters 1b, 2b, ... It is shown assuming the meters of the multi-unit housing adjacently installed.

The remote metering terminals 100a, 100b, ... serve as IoT terminals (LoRa terminals) for realizing a signal (packet) transmitted / received wirelessly with respect to the number of meters in N: 1.

Referring to one of the remote metering terminals 100a, 100b, ... (for example, 100a), the remote metering terminal 100a includes a plurality of meters 1a, 2a,... Connected to a plurality of communication ports. One uplink packet is generated using data collected from Na, and the uplink packet is transmitted at a reporting time according to a preset reporting period.

Specifically, the remote meter reading terminal (100a), the meter is provided with a plurality of communication ports that can be wired connection, the data through a request / response from a plurality of meters 1a, 2a, .... Na connected to a plurality of communication ports For example, data such as metering and status can be collected.

The remote metering terminal 100a generates one uplink packet using data collected from the plurality of meters 1a, 2a, ..Na, and randomly among the plurality of channels at the time of reporting according to the reporting period. Transmit through any channel selected.

In this case, the uplink packet transmitted from the remote meter reading terminal 100a is transmitted to the network apparatus 200 through at least one IoT base station (for example, base stations 10 and 30) receiving the uplink packet.

The network device 200, as mentioned above, serves to connect between the IoT terminal and the customer terminal (IoT app) in the Internet of Things (IoT) network through a wired or wireless network.

At this time, in the remote meter reading system of the present invention, the network device 200 serves to connect between the remote meter reading terminals (100a, 100b, ...) as an IoT terminal and the central server 300 as a customer terminal (IoT app). Will be done.

As described above, referring to one of the remote metering terminals 100a, 100b, ... (for example, 100a) in detail, the network apparatus 200 is remotely connected through at least one base station, that is, base stations 10,30. When the uplink packet from the metering terminal 100a is received, each of the plurality of meters 1a, 2a,... Na included in the uplink packet is transferred to the central server 300.

In this case, the central server 300 may store / manage data such as weighing values and states for each of the plurality of meters 1a, 2a, ..Na, and perform necessary processing remotely based on the data.

When the uplink packet from the remote meter reading terminal 100a is received through at least one base station, that is, the base stations 10 and 30, the network apparatus 200 does not wait for a separate time unless a specific identifier described below is recognized. A downlink packet (Ack) in the form of a response to the uplink packet is immediately transmitted to a specific base station selected from the base stations 10 and 30 so as to be transmitted to the remote meter reading terminal 100a.

In this case, the specific base station means a base station having the highest uplink reception quality among the base stations 10 and 30 used when the uplink packet is received, and may be, for example, the base station 30.

As described above, the remote meter reading service using the Internet of Things (IoT) technology realized according to an embodiment of the present invention realizes N: 1 by transmitting the number of signals (packets) transmitted / received wirelessly to the number of meters. Compared to the existing remote metering service of N, the number of signals (packets) can be significantly reduced compared to the number of meters.

Furthermore, in the present invention, the remote metering terminals (100a, 100b, ...), based on the collected data, the specific meter (hereinafter, failure meter) in which the alarm data required to control from the central server 300 is collected If is recognized, the uplink packet generated using the alarm data may include a specific identifier.

In this case, the network apparatus 200 receives an uplink packet from the remote metering terminal 100a through at least one base station, for example, base stations 10 and 30, and recognizes the downlink packet when the specific identifier is recognized in the uplink packet. After waiting for the control command to the specific meter, that is, the failure meter from the central server 300, instead of transmitting immediately, and transmits the downlink packet containing the control command to the selected base station, e.g. It is to be transmitted to the meter reading terminal (100a).

Furthermore, in the present invention, the remote metering terminals (100a, 100b, ...), based on the collected data, the specific meter (hereinafter, failure meter) in which the alarm data required to control from the central server 300 is collected If is recognized, change the reporting period to a time shorter than the previous reporting period so that the reporting time for generating and transmitting the next uplink packet is faster than before changing the reporting period.

Hereinafter, with reference to Figure 2 will be described in more detail the configuration of the remote metering terminal apparatus according to an embodiment of the present invention.

As shown in FIG. 2, the remote reading terminal device 100 of the present invention includes a collecting unit 110 collecting data from a plurality of meters connected to a plurality of communication ports, respectively, according to a preset reporting period. By transmitting an uplink packet, the data of each of the plurality of meters included in the uplink packet is transmitted to the central server 300 through the network apparatus 200, and a predetermined time limited to a certain number of times after the uplink packet is transmitted. The reporting period is generated by the communication unit 120 that receives the downlink packet in the downlink time interval of the unit, and generates and transmits an uplink packet to the communication unit 120 using the data collected by the collecting unit 110. And a control unit 130 for transmitting the uplink packet at the reporting time.

The remote metering terminal device 100 of the present invention may be each of the remote metering terminals (100a, 100b, ...) shown in Figure 1, in the following assumes a remote metering terminal (100a) for convenience of description I will explain.

The collecting unit 110 is provided with a plurality of communication ports through which the meter can be wired, and are illustrated as a plurality of communication ports 1, 2,... In FIG. 1.

Each communication port 1, 2, ... N provided in the collection unit 110 of the remote metering terminal device 100 can be connected to each meter wire, one of a plurality of communication ports 1, 2, ... N Alternatively, the meter may be connected to some communication ports, and up to N meters may be connected to all communication ports.

And, the collection unit 110, according to a preset report period in the remote metering terminal device 100, a plurality of meters 1a, 2a, ... each connected to a plurality of communication ports 1, 2, ... N ... Request / response from Na may collect data such as metering and status.

Communication unit 120, the communication module for supporting IoT communication (LoRa communication) for transmitting and receiving packets based on the Internet of Things (IoT), so that the remote meter reading terminal 100 can perform a role as an IoT terminal (LoRa terminal) It can be configured as.

The communication unit 120, through the random channel selected randomly among a plurality of channels at the time of reporting the uplink packet transmitted from the control unit 130 to be described later in the remote meter reading terminal device 100 preset. Send.

In this case, the uplink packet transmitted from the remote meter reading terminal device 100 is transmitted to the network device 200 through at least one IoT base station (for example, base station 10,30) receiving the network device 200. Will deliver the data of each of the meter 1a, 2a, ... Na contained in the received uplink packet to the central server (300).

Thus, in the central server 300, data such as metering values and status for each of the plurality of meters 1a, 2a, ... Na can be stored / managed, and based on this, the necessary processing can be performed remotely.

The communication unit 120 receives the downlink packet in the downlink time interval of a predetermined time unit limited to a specific number of times after the aforementioned uplink packet transmission.

For example, assuming that a predetermined time is 1 second, a specific number of times is 2, and a time interval between time intervals is 1 second, the communication unit 120 transmits an uplink packet at a reporting time according to the previous reporting period, The downlink packet can be received in the first downlink time interval (DL1) 1 second after the completion of the link packet transmission time, and when the downlink is not received, the uplink packet is transmitted 1 second after the DL1 ends. Based on the completion time, the downlink packet can be received in the second downlink time interval DL2 after 3 seconds.

The communication unit 120 may be composed of two or more communication modules, and in FIG. 2, the communication modules 1 and 2 are illustrated as an example.

For example, the communication unit 120 transmits an uplink packet using one communication module (for example, communication module 1) that is basically set when the remote metering terminal device 100 is turned on or reset. And downlink packet reception.

And, the communication unit 120, according to the monitoring and control by the control unit 130, for example, whether the failure of the packet transmission through the communication module 1 being used is repeated or RSSI (Received Signal Strength Indicator) and / or SNR ( According to the control based on the result of monitoring whether the Signal to Noise Ratio) is lower than the threshold value, the uplink packet transmission and the downlink packet reception may be performed using the other communication module 2.

As such, the remote meter reading terminal device 100 of the present invention can realize a more stable remote meter reading service through duplication of a communication module.

As shown in FIG. 2, the remote meter reading terminal device 100 may include a magnet switch 140 without providing a separate power switch or reset switch in order to increase the waterproof effect.

The magnet switch 140 may be used at the time of power-on of the remote metering terminal device 100 and reset of the remote metering terminal device 100.

The control unit 130 generates one uplink packet by using data such as measurement values and states for each of the plurality of meters 1a, 2a, .. .Na collected by the collecting unit 110, and the communication unit 120. In this case, the communication unit 120 transmits the uplink packet at the reporting time according to the reporting period.

More specifically, the control unit 130, when the power on (On) or reset (Reset) of the remote metering terminal device 100, delivers the unique number of each meter connected to each communication port of the collecting unit 110 Receives the communication port and the unique number of the meter to map and store in the internal storage (not shown), according to the set conditions can also be stored / managed by mapping the collected data of the meter together for a certain time.

In this process, the control unit 130, when the power on (On) or reset (Reset) of the meter reading device 100, if the unique number of the received meter is the same as the unique number that was previously stored / managed previously stored It is possible to load and use the data that was being managed and to load NULL data if the unique number of the received meter is a new unique number.

In addition, the control unit 130 in this process, if the meter (unique number) to be connected to the remote metering terminal device 100 by the central server 300 is specified, the unique number of the meter received If different from the number, various types of warnings (eg, LED lighting, sending a message to a registered terminal, activating a metering application in a registered terminal, etc.) may be generated.

The control unit 130 collects / transmits data such as measurement values and states for each of the plurality of meters 1a, 2a, .. .Na in the collecting unit 110, and uses one uplink packet using these data. Create

At this time, the control unit 130, based on the data collected for each of the plurality of meters 1a, 2a, ... Na, control from the central server 300 of the plurality of meters 1a, 2a, ... Na It can be recognized whether there is a particular meter for which the required alarm data has been collected.

That is, the controller 130 recognizes whether there is a specific meter (hereinafter, a failure meter) that requires remote control among a plurality of meters 1a, 2a, .. .Na.

Thus, when the failure meter is recognized based on the collected data, the controller 130 includes a specific identifier in this uplink packet generated using the alarm data of the failure meter.

The controller 130 transmits the generated uplink packet to the communication unit 120 so that the communication unit 120 transmits the uplink packet at the reporting time according to the reporting period.

In this case, the network apparatus 200 receives an uplink packet from the remote metering terminal apparatus 100 through at least one base station, for example, base stations 10 and 30.

In addition, the network apparatus 200 transmits a plurality of meters 1a, 2a,... Na of each data included in the uplink packet to the central server 300, but the specific identifier is not recognized in the uplink packet. Immediately transmits the downlink packet (Ack) in response to the uplink packet this time to a specific base station selected from the base station 10,30, such as the base station 30, without being waited to be transmitted to the remote metering terminal device 100, the uplink packet If a specific identifier is recognized in the network, instead of immediately transmitting a downlink packet (Ack), the downlink packet containing the control command is waited for to receive a control command from the central server 300 to the specific base station such as the base station 30. Transmit to the remote meter reading terminal 100a.

As described above, according to the remote meter reading terminal device 100 according to an embodiment of the present invention, by realizing a remote meter reading service that can significantly reduce the number of signals (packets) transmitted and received wirelessly to N: 1 compared to the number of meters, Network load can be reduced.

When the communication unit 120 succeeds in receiving the downlink packet in DL1 or DL2 after transmitting the uplink packet, the control unit 130 receives the downlink packet from the communication unit 120 and controls the downlink packet to the downlink packet. If a command is included, it can be recognized.

Accordingly, the controller 130 executes a control command from the central server 300 to the fault meter, receives the response data Ack according to the result of the execution from the fault meter, and stores the data as an internal storage (not shown). Will be mapped and saved.

On the other hand, when the fault meter is recognized based on the collected data, the control unit 130 changes the reporting period to a time shorter than the previous reporting period, and generates and transmits the next uplink packet. You can make this report cycle faster than before.

In detail, when the failure meter is recognized based on the collected data, the controller 130 transmits the uplink packet generated by including the specific identifier to the communication unit 120 as described above, and reports the report period. Change to a shorter time than the previous reporting period.

Thus, in the remote meter reading terminal device 100, assuming that the currently set reporting period is T1, the reporting period may be changed to T2 of a time shorter than T1 at the time when the fault meter is recognized.

In this case, as the reporting period is shortened from T1 to T2, a point in time of collecting data in the collecting unit 110 and a point in time of generating (next) uplink packet in the control unit 130 for the next uplink packet transmission and The reporting time point at which the communication unit 120 transmits the (next) uplink packet is faster than when the reporting period is T1.

In this case, the controller 130 generates and includes the response data (Ack) mapped / stored in the internal storage (not shown) as a result of the control command for the failure meter when generating the next uplink packet. .

Accordingly, the communication unit 120 will transmit the uplink packet (including the Ack) transmitted from the control unit 130 to the report time faster to change the report period.

In this case, the network apparatus 200 receives an uplink packet including a result (Ack) of performing a control command to the fault meter at an early time due to the changed reporting cycle, and thus, the plurality of meters 1a, 2a, ... The result of performing each data and control command (Ack) may be transmitted to the central server 300 at a quick time.

In addition, the control unit 130, based on the data collected by the collecting unit 110 for the next uplink packet transmission, if the previously recognized failure meter is no longer recognized, restores the reporting period from T1 to T2 You can change it.

At this time, it is preferable that the remote reading terminal device 100, that is, the controller 130, changes the reporting period from T1 to T2 or restores from T2 to T1 according to previously stored reporting period control information.

That is, the remote meter reading terminal device 100 preferably stores report period control information in which setting values for changing / restore a report period are defined in advance, for example, by the central server 300.

Thus, the controller 130 changes the reporting period from T1 to T2 when the fault meter is recognized based on the collected data according to the report cycle control information, but the fault of the fault meter is not solved. If the alarm data, ie the fault meter, is continuously recognized in the data collected more than three times, it can be restored back to T1 without maintaining the changed short report period T2.

On the other hand, the remote meter reading terminal device 100, the control unit 130, instead of storing the report period control information for changing / restoring the report period, in accordance with the control of the central server 300, the report period as described above in T1 It may also be possible to change to T2 or restore from T2 to T1.

For the central server 300, if there are no failure meters among the plurality of meters 1a, 2a,. T1) may be used, but if the fault meter has a remote control process (control command generation), the time required for the fault meter to return the response data (Ack) of the result of the control command should be short enough. Only remote control will be able to perform smoothly.

However, in the present invention, by using the Internet of Things (IoT) technology to realize a new type of remote meter reading service to reduce the number of signals (packets) to the wireless compared to the number of meters to N: 1, after the uplink packet is transmitted Considering that only remote control (downlink packet with control command) is possible, when the reporting period of the remote metering terminal device 100 is fixed without change, the remote control of the meter is smoothly performed from the position of the central server 300. Rather, it may cause deterioration of the quality of the remote meter reading service.

In view of this, in the present invention, the reporting period is adaptively changed during the period during which the control command (downlink packet) for the fault meter and the response data (Ack, uplink packet) of the result of the control command are transmitted and received. By making the transmission / reception point (reporting time) faster, we realize a new type of remote meter reading service that reduces the number of wireless signals (packets) to N: 1 by using the Internet of Things (IoT) technology. The quality of remote meter reading service can be prevented.

Furthermore, the remote reading terminal device 100 of the present invention, as shown in Figure 2, may include a temperature sensor 150 for sensing the temperature around the remote reading terminal device 100.

Thus, the controller 130 may include the temperature data sensed by the temperature sensor 150 in each uplink packet and transmit the temperature data to the communication unit 120.

In this case, since the network device 200 will also transmit the temperature data included in the uplink packet received from the remote metering terminal device 100 to the central server 300, the network device 200 transmits the temperature data of the remote metering terminal device 100. Received central server 300 can be used to determine whether the freezing risk for a plurality of meters 1a, 2a, ... Na connected to the remote metering terminal device (100).

For example, the central server 300 compares the temperature data of each of the remote metering terminal devices 100a, 100b, ..., so that the temperature is lower than a certain level among the same area or location or an adjacent remote metering terminal device. If there is a meter terminal device, it can be determined that there is a freeze hazard for the meter connected to the remote meter terminal device, and it can be alerted in various forms.

Furthermore, the controller 130 may control the plurality of communication ports 1, 2, .. within a predetermined time (eg, 15 seconds) after a power-on or reset of the remote meter reading terminal device 100. When a control signal is applied through a specific communication port, for example, communication port 1 of .N, it may be switched to a specific mode (hereinafter, referred to as an engineering mode) for firmware update.

In this case, the remote meter reading terminal device 100 may perform a firmware update procedure according to a control signal applied through the communication port 1 in the engineering mode.

As described above, according to the remote metering terminal device according to an embodiment of the present invention, while significantly reducing the number of signals (packets) for the remote report and control command reception compared to the increase in the number of meters caused by this By realizing the remote meter reading service using the Internet of Things (IoT) technology that can prevent possible degradation of service quality, it is possible to derive the effect of reducing the network load while ensuring high performance and stable service quality.

Hereinafter, referring to FIG. 3, a flow of performing remote meter reading in a remote meter reading system according to an embodiment of the present invention will be described.

For convenience of explanation, it will be described on the assumption that a plurality of meters 1, 2, .... N is connected to the remote meter reading terminal 100.

The remote meter reading terminal 100 receives a request / response from a plurality of meters 1, 2,... N connected to a plurality of communication ports 1, 2,... N according to a preset reporting period T1. Through the data, for example, data such as measurement values and status can be collected (S1, S2, ... S10).

The remote metering terminal 100, when data is collected from a plurality of meters 1, 2, .... N, based on the collected data from the central server 300 of the plurality of meters 1, 2, .... N It knows whether there is a specific meter, that is, a fault meter, for which alarm data requiring control is collected.

When the meter reading is not recognized, the remote metering terminal 100 generates one uplink packet using data collected from the plurality of meters 1, 2,... N (S20) and the reporting period (T1). Transmit at the reporting time according to (S30).

In this case, the network apparatus 200 receives an uplink packet from the remote metering terminal apparatus 100 through at least one base station, for example, base stations 10 and 30.

The network apparatus 200 transmits a plurality of meters 1, 2,... N of the data included in the uplink packet to the central server 300 (S40), and recognizes a specific identifier in the uplink packet. If not, a downlink packet (Ack) in response to the uplink packet is immediately transmitted to a specific base station selected among the base stations 10 and 30, such as base station 30, without additional waiting, so as to be transmitted to the remote metering terminal device 100 ( S45).

Thus, the central server 300, the storage and management of data, such as metering values and status for each of a plurality of meters 1, 2, .... N, and can perform the necessary processing from the remote based on this.

The remote reading terminal 100 will collect data again from the plurality of meters 1, 2,... N according to the reporting period T1 (S61, S62,... S70).

At this time, the remote metering terminal 100, when data is collected from a plurality of meters 1, 2, .... N, based on the collected data, there are a plurality of meters 1, 2, .... Know whether or not.

As shown in FIG. 3, if a failure occurs in the meter 2, the remote meter reading terminal 100 may recognize the meter 2 in which alarm data is collected based on the collected data as a failure meter (S65).

The remote metering terminal 100 includes a specific identifier when generating one uplink packet by using data collected from a plurality of meters 1, 2, .. .N (including alarm data) when the failure meter 2 is recognized. (S80), the generated uplink packet is transmitted at the reporting time according to the reporting period T1 (S90).

In addition, the remote meter reading terminal 100 changes the reporting period to a time T2 shorter than the immediately preceding reporting period T1 at step S80.

In this case, the remote meter reading terminal 100 may change the reporting period from T1 to T2 when the failure meter is recognized according to the report period control information previously stored by the central server 300.

In this case, the network apparatus 200 receives an uplink packet from the remote metering terminal apparatus 100 through at least one base station, for example, base stations 10 and 30.

In addition, the network apparatus 200 transmits each of the plurality of meters 1, 2,... N included in the uplink packet (including alarm data) to the central server 300 (S100). Since the specific identifier is recognized in the (300) and waits for the reception of the control command for the failure meter 2 from the central server 300 (S110) by transmitting a downlink packet containing the control command to a specific base station selected from the base station 10,30, for example Remote meter reading terminal 100 to be transmitted (S120).

Accordingly, in the central server 300, the storage and management of data such as the meter value and status for each of the plurality of meters 1, 2, .... N (S115), and remotely based on the reported data (alarm data) In step S110, a process of generating a control command to recognize and control the failure meter 2 may be performed.

When the remote meter reading terminal 100 succeeds in receiving the downlink packet in DL1 or DL2 after transmitting the uplink packet in step S90, the remote metering terminal 100 may recognize a control command for the failure meter 2 included in the downlink packet.

Accordingly, the remote metering terminal 100 executes a control command from the central server 300 to the fault meter 2, receives a response data (Ack) according to the result of the execution from the fault meter, and internalizes it as data of the meter. It will be mapped and stored in the storage (not shown) (S130).

On the other hand, as can be seen in Figure 3, the remote metering terminal 100, as the report period is shortened from T1 to T2 in step S80, for the next uplink packet transmission, a plurality of meters 1, 2, .... N The time of S141, 142, ... S150 collecting data from and the time of S160 generating (up next) uplink packets, and the reporting time of S170 sending (up next) uplink packets, when the reporting period is T1. Everything will be faster.

At this time, the remote meter reading terminal 100, when generating the (next) uplink packet in step S160, as a result of performing a control command for the failure meter 2 earlier, the response data (Ack) mapped / stored in the internal storage (not shown) (Ack To generate).

Of course, the remote metering terminal 100, at the time of S141, 142, ... S150 collecting data from the plurality of meters 1, 2, .... N, also based on the collected data, 2,... N will recognize whether there is a fault meter.

As shown in FIG. 3, if the fault generated in the meter 2 is automatically or manually solved according to the control of step S130 (S135), the remote meter reading terminal 100 recognizes that the fault meter 2 previously recognized is no longer present. Since it will not be able to restore the reporting period in step S160 can be changed from T1 to T2.

At this time, the remote meter reading terminal 100, according to the report period control information previously stored by the central server 300, when the previously recognized failure meter 2 is no longer recognized, restores the reporting period in step S160 T1 Can be changed to T2.

In addition, the remote meter reading terminal 100, according to the report period control information previously stored by the central server 300, the failure of the fault meter 2 is not solved, the predetermined number of times (for example, three times) to collect Even if fault meter 2 continues to be recognized in the data, it can be restored back to T1 without retaining the shorter reporting period T2, which is no longer changed to minimize battery consumption.

In this case, the network apparatus 200 receives an uplink packet including a result (Ack) of performing a control command to the fault meter at an early time due to the changed report period T2, and thus, the plurality of meters 1a and 2a. Na. The result of performing each data and control command (Ack) can be delivered to the central server 300 at a quick time point (S180), and if a specific identifier is not recognized in the uplink packet, there is no waiting. The downlink packet (Ack) in response to the uplink packet is immediately transmitted to a specific base station selected from the base stations 10 and 30, for example, the base station 30 so as to be transmitted to the remote metering terminal 100 (S185).

Accordingly, the central server 300 stores / manages data such as weighing values and states for each of the plurality of meters 1, 2, ..N, and controls the fault meter 2 remotely based on the reported data. The result (response data Ack) can be recognized (S190).

As described above, according to the remote meter reading system of the present invention, a reporting period is adaptively adjusted during a period in which a control command (downlink packet) and a response data (Ack, uplink packet) of the result of performing the control command are transmitted and received. In order to realize a new type of remote meter reading service that reduces the number of wireless signals (packets) to N: 1 by the number of meters by using the Internet of Things (IoT) technology by making the transmission / reception point (reporting point) faster. This can prevent the degradation of the quality of remote meter reading services that may be of concern.

Hereinafter, referring to FIG. 4, an operation method of a remote meter reading terminal device according to an embodiment of the present invention will be described.

For convenience of explanation, it will be described on the assumption that a plurality of meters 1, 2, .... N is connected to the remote meter reading terminal 100.

In the operation method of the remote metering terminal device of the present invention, the remote metering terminal 100 is a plurality of communication ports 1, 2, within a predetermined time (eg, 15 seconds) after a power-on or reset. ... When a control signal is applied through a specific communication port, for example, communication port 1 among N (S200 Yes), it may be switched to a specific mode (hereinafter, referred to as engineering mode) for firmware update (S205).

In the method of operating the remote metering terminal device according to the present invention, if the control signal is not applied through the communication port 1 in step S200 (S200 No), the following steps may be performed by maintaining the remote metering mode. have.

In the operation method of the remote metering terminal device of the present invention, the remote metering terminal 100 is connected to a plurality of communication ports 1, 2, ... N according to a preset report period T1. 2, .... through the request / response from the data can be collected, such as data such as metering and status (S210).

At this time, the remote metering terminal 100, if data is collected from a plurality of meters 1, 2, .... N, whether there is a failure meter among the plurality of meters 1, 2, ... .N based on the collected data Recognize whether or not (S220).

In the operation method of the remote metering terminal device of the present invention, if the remote metering terminal 100 is not recognized the presence of the fault meter (S220 No), data and temperature sensors collected from a plurality of meters 1, 2, .... N One uplink packet is generated using the temperature data sensed at 150 and transmitted to the reporting time point according to the reporting period T1 (S230).

In this case, the network apparatus 200 receives an uplink packet through at least one base station, for example, base stations 10 and 30, and the data and temperature of each of the plurality of meters 1, 2,... N included in the uplink packet. The data is transmitted to the central server 300 (S240), but if a specific identifier is not recognized in the uplink packet, the downlink packet (Ack) in response form to the uplink packet without a separate standby of the base station 10,30 Immediately transmitted to the selected specific base station, such as base station 30 to be transmitted to the remote metering terminal device (100) (S250).

In addition, the central server 300 receives a plurality of meters 1, 2,... N and the like, such as weighing values and states for each of the plurality of meters 1, 2, and .N and temperature data of the remote metering terminal 100. ... .N can store / manage data such as weighing values and status for each, and determine whether a freezing hazard is present (S245).

In the operation method of the remote metering terminal device of the present invention, the remote metering terminal 100, after receiving the uplink packet in step S230, and receives the downlink packet transmitted in step S250 by the network device 200 in DL1 or DL2 It may be (S260).

In the operation method of the remote metering terminal device of the present invention, the remote metering terminal 100 receives data from a plurality of meters 1, 2, .. .N according to the reporting period as long as the power is not turned off (S360 No, ②). Collecting step S210 and after may be repeated.

On the other hand, in the operation method of the remote metering terminal device of the present invention, when the presence of a failure meter, for example meter 2 is recognized (S220 Yes), the remote metering terminal 100, the report period (T1) immediately before the current setting the reporting period (T1) Change to a shorter time T2 (S270).

In addition, in the operation method of the remote metering terminal apparatus of the present invention, when the presence of a failure meter, for example meter 2 is recognized (S220 Yes), collected from a plurality of meters 1, 2, .... N Using the data and the temperature data sensed by the temperature sensor 150 generates one uplink packet, including a specific identifier, and transmits the uplink packet to the reporting time point according to the reporting period (T1) (S280).

In this case, the network apparatus 200 receives an uplink packet through at least one base station, for example, base stations 10 and 30, and the data and temperature of each of the plurality of meters 1, 2,... N included in the uplink packet. The data and alarm data of the failure meter 2 is transmitted to the central server 300 (S290), and since a specific identifier is recognized in the uplink packet, the control server waits for reception of the control command for the failure meter 2 from the central server 300.

The central server 300 receives a plurality of meters 1, 2,... N by receiving data such as weighing values and states for each of the plurality of meters 1, 2,... N, and temperature data of the remote meter reading terminal 100. .N can store / manage data such as weighing values and status for each and determine whether a freeze hazard exists (S295), and process to recognize and control fault meter 2 remotely based on the reported alarm data. Control command generation / transmission) may be performed (S300).

When the network apparatus 200 receives a control command for the failure meter 2 from the central server 300, the network apparatus 200 transmits a downlink packet including the control command to a specific base station selected among the base stations 10 and 30, for example, the base station 30. It is to be transmitted to the device 100 (S305).

In the method of operating the remote metering terminal apparatus of the present invention, the remote metering terminal 100 may receive the downlink packet transmitted from the network apparatus 200 through step S308 in DL1 or DL2 after transmitting the uplink packet in step S280. It may be (S310).

In the method of operating the remote metering terminal apparatus of the present invention, when the remote metering terminal 100 successfully receives the downlink packet from DL1 or DL2, the remote metering terminal 100 may recognize a control command for the failure meter 2 included in the downlink packet. Can be.

Accordingly, the remote meter reading terminal 100 executes a control command from the central server 300 to the fault meter 2, receives a response data (Ack) according to the result of the execution from the fault meter, and internalizes it as data of the meter. The storage will be mapped to a storage (not shown) (S320).

In addition, in the operation method of the remote metering terminal apparatus of the present invention, as the report period is shortened from T1 to T2 in step S270, the report period is changed according to the report period 2 for the next uplink packet transmission. Collecting data from a plurality of meters 1, 2, .... N at a faster time point than when T1 (S330).

At this time, the remote metering terminal 100, when data is collected from a plurality of meters 1, 2, .... N, based on the collected data, there are a plurality of meters 1, 2, .... It may be recognized whether the failure meter 2 still exists (S340).

If the failure occurred in the meter 2 is resolved according to the control of step S320, the remote meter reading terminal 100, because the previously recognized failure meter 2 will not be recognized anymore (S340 No), restore the reporting period T1 Change to T2 at (S350) ① enters and performs S230, in which the remote metering terminal 100 at S230, the data collected in step S330 and the temperature data sensed by the temperature sensor 150 and in step S320 As a result of executing the control command for the fault meter 2, one uplink packet is generated using the response data (Ack) mapped / stored in the internal storage (not shown), and the report is performed according to the reporting period (T2) before restoration. Send at the time.

In this case, the network apparatus 200 receives an uplink packet including a result (Ack) of a control command to the fault meter 2 at an early time due to the changed report period T2, and receives a plurality of meter 1a, 2a, .. .Na The result of performing each data and control command (Ack) can be delivered to the central server 300 at a fast time (S240), and if a specific identifier is not recognized in the uplink packet, a separate standby Without this, the downlink packet (Ack) in response to the uplink packet is immediately transmitted to a specific base station selected among the base stations 10 and 30, for example, to be transmitted to the remote metering terminal device 100 (S250).

In addition, the central server 300 receives a plurality of meters 1, 2,... N and the like, such as weighing values and states for each of the plurality of meters 1, 2,... N, and temperature data of the remote metering terminal 100. .. .N Save / manage data such as weighing value and status for each, and determine whether freezing hazards exist, and control the fault meter 2 remotely based on the reported data (response data (Ack)) ) Can be recognized (S245).

As described above, according to the present invention, while significantly reducing the number of signals (packets) for remotely reporting and receiving control commands compared to the increase in the number of meters, it is possible to prevent a deterioration in service quality that may be caused. By realizing the remote meter reading service using the Internet of Things (IoT) technology, it is possible to derive the effect of reducing the network load while ensuring high performance and stable service quality.

Meanwhile, the functional operations and implementations of the subject matter described in this specification may be implemented in digital electronic circuitry, computer software, firmware or hardware including the structures and structural equivalents disclosed herein, or one or more of them. It can be implemented in combination. Implementations of the subject matter described herein may be embodied as one or more modules related to computer program instructions encoded on a program storage medium of tangible type for controlling or by the operation of one or more computer program products, ie control systems. Can be implemented.

The computer readable medium may be a machine readable storage device, a machine readable storage substrate, a memory device, a composition of materials affecting a machine readable propagated signal, or a combination of one or more thereof.

As used herein, the term "system" or "apparatus" encompasses all the mechanisms, devices, and machines for controlling data, including, for example, programmable processors, computers, or multiple processors or computers. The control system may include, in addition to hardware, code that forms an execution environment for a computer program on demand, such as code constituting processor firmware, a protocol stack, a database management system, an operating system, or a combination of one or more thereof. .

Computer programs (also known as programs, software, software applications, scripts, or code) may be written in any form of programming language, including compiled or interpreted languages, or a priori or procedural languages. It can be deployed in any form, including components, subroutines, or other units suitable for use in a computer environment. Computer programs do not necessarily correspond to files in the file system. A program may be in a single file provided to the requested program, in multiple interactive files (eg, a file that stores one or more modules, subprograms, or parts of code), or part of a file that holds other programs or data. (Eg, one or more scripts stored in a markup language document). The computer program may be deployed to run on one computer or on multiple computers located at one site or distributed across multiple sites and interconnected by a communication network.

On the other hand, computer-readable media suitable for storing computer program instructions and data include semiconductor memory devices such as EPROM, EEPROM and flash memory devices, for example magnetic disks such as internal hard disks or external disks, magneto-optical disks and CDs. It may include all types of nonvolatile memory, media and memory devices, including -ROM and DVD-ROM disks. The processor and memory can be supplemented by or integrated with special purpose logic circuitry.

Implementations of the subject matter described herein may include, for example, a backend component such as a data server, or include a middleware component such as, for example, an application server, or a web browser or graphic user, for example, where a user may interact with the implementation of the subject matter described herein. It may be implemented in a computing system that includes a front end component such as a client computer having an interface or any combination of one or more of such back end, middleware or front end components. The components of the system may be interconnected by any form or medium of digital data communication such as, for example, a communication network.

Although the specification includes numerous specific implementation details, these should not be construed as limiting to any invention or the scope of the claims, but rather as a description of features that may be specific to a particular embodiment of a particular invention. It must be understood. Likewise, certain features described herein in the context of separate embodiments may be implemented in combination in a single embodiment. Conversely, various features that are described in the context of a single embodiment can also be implemented in multiple embodiments individually or in any suitable subcombination. Furthermore, while the features may operate in a particular combination and may be initially depicted as so claimed, one or more features from the claimed combination may in some cases be excluded from the combination, the claimed combination being a subcombination Or a combination of subcombinations.

In addition, although the drawings depict operations in a particular order, it is to be understood that such operations must be performed in the specific order or sequential order shown in order to obtain desirable results or that all illustrated acts must be performed. Can not be done. In certain cases, multitasking and parallel processing may be advantageous. Moreover, the separation of the various system components of the above-described embodiments should not be understood as requiring such separation in all embodiments, and the described program components and systems will generally be integrated together into a single software product or packaged into multiple software products. It should be understood that it can.

As such, this specification is not intended to limit the invention to the specific terms presented. Thus, while the present invention has been described in detail with reference to the above examples, those skilled in the art can make modifications, changes, and variations to the examples without departing from the scope of the invention. The scope of the present invention is shown by the following claims rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention. do.

According to the remote meter reading system of the present invention, the method of operation of the remote meter reading device and the remote meter reading device applied to the system, the Internet of Things (IoT) technology that can ensure a high performance and stable service quality while reducing the network load In terms of realizing the remote meter reading service, it is not only the use of the related technology but also the possibility of marketing or sales of the applied device as well as the use of the related technology. It is an invention that can be used.

100: remote meter reading terminal device
110: collecting unit 120: communication unit
130: control unit 140: magnet switch
150: temperature sensor

Claims (17)

Multiple meters;
A remote reading terminal for generating one uplink packet using data collected from the plurality of meters connected to a plurality of communication ports, and transmitting the uplink packet at a reporting time according to a preset reporting period; And
Delivers data of each of the plurality of meters included in the uplink packet received through at least one base station to a central server, and selects a downlink packet in response form to the uplink packet selected from the at least one base station A network device for transmitting to a base station for transmission to said remote meter reading terminal;
The remote meter reading terminal,
Based on the collected data, when a specific meter that collects alarm data requiring control from a central server is recognized, the reporting period is changed to a time shorter than the previous reporting period, thereby generating and transmitting the next uplink packet. A remote meter reading system, characterized in that the reporting point is faster than before changing the reporting period. The method of claim 1,
The remote meter reading terminal,
When the specific meter which collects the alarm data requiring control from the central server based on the collected data is recognized, the specific identifier is included in the uplink packet generated using the alarm data.
And receiving the control command for the specific meter from the central server and transmitting a downlink packet including the control command when the network device receives the uplink packet having the specific identifier.
delete A collection unit collecting data from a plurality of meters connected to a plurality of communication ports, respectively, according to a preset reporting period;
Transmitting an uplink packet to transmit data of each of the plurality of meters included in the uplink packet to a central server through a network device, and downlink time interval of a predetermined time unit limited to a specific number of times after transmitting the uplink packet. Communication unit for receiving a downlink packet in the; And
A control unit for generating and transmitting one uplink packet to the communication unit by using the data collected by the collection unit, so that the uplink packet is transmitted at the reporting time according to the reporting period;
The control unit,
Based on the collected data, when a specific meter that collects alarm data requiring control from a central server is recognized, the reporting period is changed to a time shorter than the previous reporting period, thereby generating and transmitting the next uplink packet. Remote metering terminal device characterized in that the reporting time is faster than before the change of the reporting period. The method of claim 4, wherein
The control unit,
When a specific meter that collects alarm data requiring control from a central server based on the collected data is recognized, a specific identifier is included in an uplink packet generated using the alarm data.
When the network device receives the uplink packet of the specific identifier, the remote metering terminal device to receive a control command from the central server and to transmit a downlink packet including the control command from the central server. . delete The method of claim 5,
In the next uplink packet,
And a response data according to a result of performing the control command with respect to the specific meter. The method of claim 4, wherein
The control unit,
When the specific meter is not recognized based on the collected data, the remote reading terminal device, characterized in that for restoring the reporting period. The method of claim 4, wherein
The control unit,
When the control signal is applied through a specific communication port of the plurality of communication ports within a predetermined time after the power-on (On) or reset (Reset) of the remote metering terminal device, it is switched to a specific mode for the firmware update Remote meter reading terminal device. The method of claim 4, wherein
And a temperature sensor for sensing a temperature around the remote reading terminal device;
The control unit,
Including the temperature data sensed by the temperature sensor in the uplink packet, the central server receiving the temperature data included in the uplink packet can determine whether the freezing risk for the plurality of meters connected to the remote metering terminal device. Remote metering terminal device, characterized in that. A collection step of collecting data from a plurality of meters respectively connected to a plurality of communication ports according to a preset reporting period;
A generation step of generating one uplink packet using the collected data;
A transmission step of transmitting the generated uplink packet at a reporting time according to the reporting period, so that data of each of the plurality of meters included in the uplink packet is transmitted to a central server through a network device;
A receiving step of receiving a downlink packet in a downlink time interval of a predetermined time unit limited to a specific number after transmitting the uplink packet;
Based on the collected data, when a specific meter that collects alarm data requiring control from a central server is recognized, the reporting period is changed to a time shorter than the previous reporting period, thereby generating and transmitting the next uplink packet. A method of operating a remote reading terminal device, characterized in that the reporting time is faster than before the change of the reporting period. The method of claim 11,
The generating step,
When a specific meter that collects alarm data requiring control from a central server based on the collected data is recognized, a specific identifier is included in an uplink packet generated using the alarm data.
When the network device receives the uplink packet of the specific identifier, the remote metering terminal device to receive a control command for the specific meter from the central server and to transmit a downlink packet including the control command Method of operation. delete The method of claim 12,
In the next uplink packet,
And the response data according to a result of performing the control command with respect to the specific meter. The method of claim 11,
And restoring the reporting period when the specific meter is not recognized based on the collected data. The method of claim 11,
Switching to a specific mode for firmware update when a control signal is applied through a specific communication port among the plurality of communication ports within a predetermined time after power-on or reset of the remote meter reading terminal device. Operation method of the remote meter reading terminal device further comprising. The method of claim 11,
The generating step,
A plurality of meters connected to the remote metering terminal device by a central server receiving temperature data included in the uplink packet by including temperature data from a temperature sensor sensing a temperature around the remote metering terminal device in an uplink packet Method for operating a remote metering terminal device, characterized in that for determining the risk of freezing.

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