KR101144751B1 - Multi-channel cluster-based wireless remote checking system - Google Patents

Abstract

The present invention relates to a channel setting and scheduling scheme for network allocation in a wireless telemetry, and more particularly, to a remote telemetry, a remote concentrator and a remote repeater as a channel setting scheme for allocating a wireless network. The present invention relates to a multi-channel cluster-based wireless remote meter network system capable of active channel connection and multi-channel cluster-based channel configuration having a mixed network channel and a group channel between a remote repeater, a remote commander, and a remote collector.
In the multi-channel cluster based wireless remote meter network system according to the present invention, the remote collector is operated to collect the usage amount from the meter; It is installed outdoors, connected to the remote collector, the remote commander to check the meter reading data of the remote collector is operated; A remote concentrator connected to the remote indicating unit through a mobile communication network to transmit meter reading data confirmed by the remote indicating unit to a server; A remote repeater is operable to extend the communication distance between the remote indicating unit and the remote concentrator.
The wireless remote meter network system based on the multi-channel cluster according to the present invention can increase the management efficiency of the readers of the meter reading area, minimize the probability of collision of the radio meter data, and enable the quick recovery of the meter network. The number of managed nodes per concentrator can be maximized, real-time local metering information can be checked through the wireless remote commander, and remote metering operation efficiency can be increased by interworking with OMR and AMR. It can support a variety of services, guarantees minimum meter reading time, and extends battery life through low power metering technology.

Description

Multi-channel cluster based wireless remote meter network system {MULTI-CHANNEL CLUSTER-BASED WIRELESS REMOTE CHECKING SYSTEM}

The present invention relates to a channel setting and scheduling scheme for network allocation in a wireless telemetry, and more particularly, to a remote telemetry, a remote concentrator and a remote repeater as a channel setting scheme for allocating a wireless network. The present invention relates to a multi-channel cluster-based wireless remote meter network system capable of active channel connection and multi-channel cluster-based channel configuration having a mixed network channel and a group channel between a remote repeater, a remote commander, and a remote collector.

In general, for municipal infrastructures such as gas, electricity and water, administrative charges are collected. For example, in the case of a water rate, the meter readers visit each house and then visually check the amount of water displayed on the water meter, and then record the water bill based on this.

However, this fee collection method should be visited from house to house in order to check the water meter installed indoors, which causes the inhabitants of the house to invade privacy, and the meter reads a huge amount of working time and enormous meter reading There is a problem with the cost.

The patent registration No. 151000 "Wireless remote control meter reading device" is proposed to solve this problem by providing data related to the water consumption used in the house wirelessly over a long distance by using RF (Radio Frequency) communication. It solved the problem of enormous meter reading cost along with privacy invasion and extensive meter reading time.

Such a remote meter reading device using wireless communication allocates a communication channel to a predetermined frequency band in order to wirelessly transmit data necessary for meter reading. This is because, if a specific low-power wireless device is used as a predetermined frequency band for wireless remote meter reading, the contracted frequency band can be used free of charge.

However, in case of performing data communication related to wireless meter reading by allocating communication channel to short frequency channel mentioned above, due to the effect of same frequency interference, additional data related to wireless meter reading should be additionally used when using short channel communication channel. There is a problem that communication cannot be performed. That is, since the wireless remote metering network is configured using a short channel, as the number of customers increases, the probability of collision of data increases as the number of customers increases, thereby reducing the reliability of wireless communication.

In addition, there is a problem in that customer scalability is limited because the number of customer nodes is limited to reduce the collision probability.

In addition, the schedule-based one-way wireless telemetering system cannot collect the change of meter readings within a predetermined time, it is difficult to expand to various services, and if the time synchronization is broken, it causes great confusion in the entire wireless telemetering network. The problem is that it can be done.

In addition, in the wireless remote meter reading system based on the wire between the meter and the indicator, there is a problem in that additional construction cost and installation time increase and maintenance cost increases.

In addition, in the operation of a wireless remote meter reading system, the inefficiency of the system due to the separate operation of off-site meter reading (OMR) and automatic meter reading (AMR) increases.

Accordingly, an object of the present invention is to solve the above problems, by establishing a multi-channel cluster-based channel configuration having a mixture of network channels and group channels, thereby increasing the efficiency of management through physical / logical consumer channel clustering, It improves meter reliability and network scalability by using distinct channel between adjacent clusters, and also reduces installation time / maintenance cost through hierarchical network structure of 4 distinct devices in wireless remote meter reading system. Multi-channel cluster-based wireless to realize various services through various operation modes through reduced and fast error recovery and backup function, and to extend battery life through efficient power management and server-based service requests To provide a remote meter network system Will.

In the multi-channel cluster-based wireless remote meter network system according to the present invention, the remote collector operates to collect the usage amount from the meter. In addition, the remote commander is installed outdoors, connected to the remote collector and the local area network, to check the metering data of the remote collector. In addition, the remote commander is connected to the remote commander through a mobile communication network, the remote concentrator operates to transmit the meter reading data confirmed by the remote commander to the server. In addition, a remote repeater operates to extend the communication distance between the remote indicating unit and the remote concentrator.

As described above, the multi-channel cluster-based wireless remote meter network system according to the present invention has the following effects.

First, the management efficiency of readers in the meter reading area can be increased.

Second, it is possible to minimize the probability of collision of wireless meter reading data, and to enable the rapid recovery of the meter network.

Third, the number of customer nodes managed by one remote concentrator can be maximized.

Fourth, it is possible to check the real-time local metering information through the wireless remote indicator.

Fifth, OMR and AMR can be linked to increase the efficiency of remote meter reading.

Sixth, it can support various services through server-centric service request.

Seventh, the minimum meter reading time can be guaranteed.

Eighth, low-power metering technology can extend battery life.

1 is a diagram illustrating a multi-channel cluster-based wireless remote meter network system according to the present invention.
FIG. 2 is a flow chart related to the operation of all modes of operation of the remote repeater of FIG. 1. FIG.
3 is a flow chart related to the idle mode operation of the remote repeater of FIG. 1.
4 is a flow chart related to the AMR mode operation of the remote repeater of FIG.
5 is a flow chart related to the OMR mode operation of the remote repeater of FIG.
6 is a flow chart related to the centralized OMR mode operation of the remote repeater of FIG.
7 is a flowchart illustrating the operation of the remote indicating unit of FIG. 1.
8 is a flow chart related to the operation of the remote collector of FIG.
9 is a flow chart related to the operation of the remote concentrator of FIG.

Hereinafter, a multi-channel cluster based wireless remote meter network according to the present invention will be described in more detail with reference to the accompanying drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. In addition, terms to be described below are terms defined in consideration of functions in the present invention, which may vary according to a client's or operator's intention or custom. Therefore, the definition should be based on the contents throughout this specification.

Like numbers refer to like elements throughout the drawings.

1 is a diagram illustrating a multi-channel cluster-based wireless remote meter network according to the present invention, FIG. 2 is a flowchart illustrating the operation of all operation modes of the remote repeater of FIG. 1, and FIG. 3 is a pause of the remote repeater of FIG. 1. 4 is a flowchart illustrating the AMR mode operation of the remote repeater of FIG. 1, FIG. 5 is a flowchart illustrating the OMR mode operation of the remote repeater of FIG. 1, and FIG. 6 is a flowchart of the remote repeater of FIG. 1. 7 is a flowchart illustrating the operation of the remote indicating unit of FIG. 1, FIG. 8 is a flowchart illustrating the operation of the remote collector of FIG. 1, and FIG. 9 is a flowchart of the remote concentration unit of FIG. 1. A flowchart of the operation.

As shown in FIG. 1, the multi-channel cluster-based wireless remote meter network system according to the present invention includes a remote collector 101 for metering usage from a meter (not shown); It is installed outdoors, the remote indicating unit 102 for the user to check the meter reading data read from the remote collector 101, and the meter reading data to the remote indicating unit 102 via a mobile communication network to a server (not shown) A remote concentrator 104 for transmitting; It is composed of a remote repeater 103 for extending the communication distance between the remote indicating unit 102 and the remote concentrator 103.

Here, the communication channel between the remote concentrator 104 and the remote repeater 103 is defined and assigned as a network channel.

In addition, the communication channel between the remote repeater 103, the remote indicating unit 102, and the remote collector 101 is defined as a group channel and assigned.

Therefore, since the remote repeater 103 establishes a network channel with the remote concentrator 140 and sets a group channel with the remote commander 102, the remote repeater 103 is set as a multichannel cluster channel.

In addition, in the multi-channel cluster-based wireless remote meter network system according to the present invention, the number of the remote collector 101 and the remote indicating unit 102 is the same and about 1 to 200, the remote repeater 103 The number of) is about 1 to 9, the number of the remote concentrator 104 is about one.

Hereinafter, the operation mode and operation of the multi-channel cluster-based wireless remote meter network system according to the present invention according to the present invention will be described in detail through embodiments.

[Example]

Operation Mode and Operation of Remote Repeater

The operation mode of the remote repeater 103 operates in one of an idle mode, an automatic meter reading (AMR) mode, an off-site meter reading (OMR) mode, and a concentrated OMR mode.

As shown in Figure 2, the initial operation mode setting step (S201) for setting the initial operation mode of the remote repeater 103 is the idle mode setting step 202, the AMR mode setting step 203, the OMR mode setting step In operation 204, the operation of the mode is performed according to any one mode setting step of the centralized OMR mode setting step 205 (S206 to 209).

The characteristics of each operation mode of the remote repeater 103 are as follows.

Pause of remote repeater mode  action

The idle mode of the remote repeater 103 is a battery when the network channel and the group channel are not used in the absence of the remote concentrator 104, in the installation of the product, in the maintenance of the product, and during normal remote meter reading operation for a certain period of time. It is an operation mode to minimize the consumption.

Here, the remote repeater 103 is operated as follows, as shown in FIG.

The remote repeater 103 is set to an idle mode (S301);

Changing a channel setting to the network channel (S302);

Performing a wake-up after entering the power sleep mode until a command confirmation time of the remote concentrator 104 (S303);

Waiting for the command of the remote concentrator 104 (S304);

If there is a command of the remote concentrator 104, canceling the idle mode and executing the command (S305, S306);

If there is no command from the remote concentrator 104, the idle mode is performed (S305);

The remote repeater 103 changes a channel setting to a group channel (S307), and enters a power sleep mode for battery power saving (S308);

Determining whether it is every hour to determine whether it is time to issue the idle mode command (S309);

If every hour, the remote repeater 103 issues a pause command as a broadcast type command to the remote commander 102 once per hour (S310);

The remote repeater 103 repeats a series of processes for changing the channel setting to the network channel and entering the power sleep mode.

Here, even if the remote repeater 103 operates in the idle mode, the data reading is made between the remote indicating unit 102 and the remote collector 101 as it is. This is because the same scheduling as other command frames is used even if the remote commander 102 receiving the pause command from the remote repeater 103 issues the pause command to the remote collector 101. This is because the remote indicating unit 104 should display the meter reading value of the meter changed from the remote collector 101 every hour.

In the idle mode of the remote repeater 103, data communication between the remote concentrator 104 and the remote repeater 103, the remote repeater 103 and the remote indicating unit 102 maintains the RF standby mode once per hour. The reason to do this is to return within 1 hour by the network activation command.

Of remote repeater AMR mode  action

In this mode, the server processes the command requested by the remote concentrator 104 in the entire network and returns the result back to the server. Once per hour, the command from the remote concentrator 104 to the remote repeater 103 is transmitted to the remote commander 102, and the response data of the remote commander 102 to the command is transmitted again to the remote concentrator 104. Performs the operation of transferring to.

Here, the remote repeater 103 is operated as follows, as shown in FIG.

The remote repeater 103 changes the channel setting to a network channel that can communicate with the remote concentrator 104 (S401);

Performing a power sleep mode and waking up until a command confirmation time of the remote concentrator 104 (S402);

Waiting for a command from the remote concentrator 104 (S403);

Checking whether there is a preamble signal from the remote concentrator 104 every 5 seconds to check whether there is a command from the remote concentrator 104 (S404);

If there is no command from the remote concentrator 104, the check as to whether there is a command from the remote concentrator 104 is repeated, and if there is a command from the remote concentrator 104, the channel setting is changed to a group channel. (S405);

Changing the channel setting to the group channel, transmitting a preamble signal in a broadcast manner for a specific time to perform time synchronization of the group channel, and transmitting a command of the remote concentrator 104 (S406);

The remote repeater 103 enters a power sleep mode for battery saving, performs a power sleep mode until a time slot for receiving a response to a command from a lower remote indicating unit 102, and wakes up. Perform (S407);

The remote repeater 103 receives the responses of all the remote indicating units 102 in a predetermined order and stores the responses (S408);

The remote repeater 103 checks whether after receiving the wake-up, all the responses from the remote commander 102 belonging to the group channel have been received (S409);

If not receiving all the response from the remote indicating unit 102, it is regarded as communication failure (S410);

Upon receiving all responses from the remote indicating unit 102, transmits an acknowledgment (ACK) indicating that the remote indicating unit 102 has received a response, and the remote repeater 103 changes a channel to a network channel (S411);

The remote repeater (103) checks whether there is a unicast response request for a command from the remote concentrator (104) (S412);

If there is no unicast response request, it waits for the command of the remote concentrator 104, and if there is the unicast response request, transmits the response of the remote indicating unit 102 to the remote concentrator 104 ( S413);

After transmitting all the responses of the remote indicating unit 102 to the remote concentrator 104, a series of processes of entering the power sleep mode are repeated until a time for confirming the command of the remote concentrator 104.

Of remote repeater OMR mode  action

It is an operation mode that reads meter reading data by using PDA (separate portable communication device). Remote repeater controls meter reading section once every hour. The meter start date and meter end date, meter start time and meter end time is set only the remote repeater 103, unlike the existing OMR system. The OMR operation mode set in the remote repeater 103 is communicated to the remote commander 102 through the group channel to set the meter start date, the meter end date, the meter start time, and the meter end time. In addition, the wake-up period of the remote collector 101 is shortened to improve the acquisition time of the meter data from the remote collector 101.

Here, the remote repeater 103 is operated as follows, as shown in FIG.

Setting the initial operation mode of the remote repeater 103 to an OMR mode and storing a remote meter reading setting value to be used in the remote indicating unit 102 (S501);

The remote repeater 103 changes the channel setting to the group channel (S502);

The remote repeater 103 enters the power sleep mode and then wakes up (S503);

Determining whether it is every hour to determine whether it is time to issue the command of the OMR mode (S504);

If every hour, the remote repeater 103 issues an OMR mode command to the remote commander 102 once per hour by a broadcast type command (S505);

The remote repeater 103 repeats a series of processes with power sleep.

Centralized type of remote repeater OMR mode  action

Unlike the OMR mode of 2 to 3, the centralized OMR mode does not collect the metering data of the remote collector 101 separately from a PDA (separate portable communication device), but instead of collecting the metering data of each remote collector 101. It is an operation mode which collects the reading data collected in the remote repeater 103 by using a PDA (separate portable communication device) and collects the data in the PDA (separate portable communication device). The operation of the centralized OMR mode of the remote repeater 103 is an operation mode in which each remote collector 102 stores data at a reference time once a day and reads it through a request of the remote repeater 103. The remote repeater 103 maintains a periodic RF standby mode.

Here, the remote repeater 103 is operated as follows, as shown in FIG.

The remote repeater 103 is set to a centralized OMR mode (S601);

Changing a channel setting to the group channel (S602);

 Until the start date of the meter reading the remote repeater 103 enters the power sleep mode and performs a wake-up (S603);

The remote repeater 103 determines whether it is a valid meter reading period (S604), and if it is a valid meter reading period, transmits a meter reading request command to the remote command unit 102 by a broadcast type command (S605);

The remote repeater 103 enters a power sleep mode for battery saving, performs a power sleep mode to a time slot for receiving a response to a command from a lower remote commander 102, and performs a wake up operation (S606). );

Receive the responses of all the remote indicating units 102 in a predetermined order and store the responses (S607);

The remote repeater (103) checks whether all the responses of the remote commander (102) belonging to the group channel are received after the wake-up (S608);

If all the responses of the remote indicating unit 102 has not been received, it is regarded as a communication failure (S609);

When all the responses of the remote indicating unit 102 have been received, an acknowledgment that the response has been received is transmitted to the remote indicating unit 102, and it is checked whether there is a request for reading data from a PDA (separate portable communication device) (S610), If the reading data request is received, transmitting reading data of the remote indicating unit 102 to a PDA (separate portable communication device) (S611);

If there is no reading data request, it is checked whether it is a valid reading period (S612);

If the valid reading period, the remote repeater 103 checks whether there is a request for reading data from a PDA (separate portable communication device), and if not, the repeating process of entering the power sleep mode until the next reading date is repeated. do.

Remote indicator  action

The remote indicating unit 102 operates in the RF reception mode once every 5 seconds.

In addition, the remote indicating unit 102 communicates with the remote collector 101 by the set slot number when the remote repeater 103 requests a command with a broadcast ID. In this case, individual processing for a specific node is also possible.

In addition, the remote indicating unit 102 may maintain a certain time in the idle state only when receiving a rest command of the remote repeater 103. At this time, the remote command unit 102 that has not received the pause command waits in the RF reception mode once every 5 seconds until the request time of the next remote repeater 103.

Here, the remote indicating unit 102, as shown in Figure 7, operates as follows.

Changing a channel setting to a group channel that can communicate with the remote repeater 103 (S701);

Performing a power sleep mode and waking up until a command confirmation time of the remote repeater 103 (S702);

Waiting for a command from the remote indicating unit (102) (S703);

To check whether there is a preamble signal from the remote repeater 103 every 5 seconds to check whether there is a command from the remote repeater 103 (S704);

If there is no command from the remote repeater 103, it checks every 5 seconds for a preamble signal from the remote repeater 103, and if there is a command from the remote repeater 103, the remote indicating unit 102 Entering a power sleep mode for saving (S705), performing a power sleep mode to a time slot to transmit a command of the remote repeater 103 to a lower remote collector 101, and performing a wake up (S706);

The remote instructing unit 102 transmits a command of the remote repeater 103 to the lower remote collector 101 after wake-up (S707), and waits for a response from the lower remote collector 101 (S708). ;

Checking whether all responses from the lower remote collector 101 have been received (S709);

If it does not receive a response from the lower remote collector 101, it is regarded as a communication failure with the lower remote collector 101 (S710), and performs a power sleep mode until the response request command time of the remote repeater 103; Wake up (S711);

When receiving a response from the lower remote collector 101, it is checked whether there is a broadcast type response request from the upper remote repeater 103 (S712);

If there is a response request from the upper remote repeater 103, performs a power sleep mode until a time slot to transmit the response of the remote indicating unit 102 (S713);

Checking whether it is a time slot to be transmitted to the upper remote repeater 103 (S714);

If it is not the time slot to be transmitted to the remote repeater 103 of the upper, perform a power slim mode, and if it is a time slot to transmit to the remote repeater 103 of the upper, wake up in the time slot to be transmitted to the remote repeater 103 Transmitting the response of the remote collector 101 to the remote repeater 103 (S715);

The process of entering the power sleep mode is repeated until the time for confirming the next command of the remote repeater 103.

Remote Collector Operation

The remote collector 101 operates in the RF reception mode once every 5 seconds.

In addition, when the remote commander 101 requests a command with a broadcast ID, the remote collector 101 communicates with the remote commander 102 by the set slot number. In this case, individual processing for a specific node is also possible.

In addition, the remote collector 101 may receive a rest command of the remote indicating unit 102 to maintain a predetermined time in a rest state. At this time, the remote collector 101 which has not received the pause command waits in the RF reception mode once every 5 seconds until the request time of the next remote indicating unit 102.

Here, the remote collector 101 is operated as follows, as shown in FIG.

Changing a channel setting to a group channel that can communicate with the remote indicating unit (102) (S801);

Performing a power sleep mode and waking up until the command confirmation time of the remote indicating unit 102 (S802);

Waiting for a command from the remote indicating unit (102) (S803);

Checking whether there is a preamble signal from the remote indicating unit 102 every 5 seconds to check whether there is a command from the remote indicating unit 102 (S804);

If there is no command from the remote commander 102, the remote commander 102 repeatedly checks whether there is a command from the remote commander 102, and if there is a command from the remote commander 102, the remote collector 101 saves battery power. Enters a power sleep mode for the power sleep mode and performs a power sleep mode to a time slot to transmit a response to the command of the remote commander 102 and performs a wake up (S805);

After the wake-up, the remote collector 101 reads the usage data, transmits the read usage data to the remote indicating unit 102, and enters the power sleep mode until a time for confirming the next command of the remote indicating unit 102. Enter (S806);

When the command confirming time of the remote indicating unit 102 is reached, a series of processes are repeated to confirm the command by waking up.

Remote concentrator  action

The remote concentrator 104 connects to the server once an hour. That is, it connects to the server every hour in order to download commands required for the remote meter reading system from the server.

In addition, the remote concentrator 104 potentially has a remote repeater ID in addition to the remote concentrator ID. That is, in order to operate the remote indicating unit 102 directly connected to the remote concentrator 104, it has a remote repeater ID of 0 times in the same concept as other remote repeaters 103.

In addition, the remote concentrator 104 operates at a specific time scheduling according to a command frame to reduce battery consumption.

In addition, the remote concentrator 104 instructs the remote relays 103 to remote system commands once an hour. Here, the remote system command includes a variety of commands such as normal reading, log reading, system mode.

Here, the remote concentrator 104 operates as shown in FIG. 9.

Entering a power sleep mode until a time for confirming a command of the server (S901);

When the command confirmation time of the server is reached, and wakes up to connect to the server (S902);

Changing a channel setting to a network channel that can communicate with the remote repeater 103 (S903);

Checking whether there is a command from the server (S904);

If there is no command from the server, the device enters the power sleep mode until the next transmission. If there is a command from the server, the command is transmitted to the remote repeater 103 for 5 seconds in a broadcast manner (S905). ;

After the command is transmitted in the broadcast manner, the system enters the power sleep mode for battery power save, performs the power sleep mode to a time slot for requesting the response of the remote repeater 103, and performs a wake up operation; S906);

Requesting responses to all the remote repeaters 103 in a predetermined order in unicast and receiving and storing the responses (S907);

Requesting a response to all the remote repeaters 103 in the predetermined order by unicast (S908), if not receiving the response, it is considered that communication with the remote repeaters 103 in the corresponding order has failed (S909);

Requesting responses from all the lower remote repeaters 103, and if received, transmits the response data of each remote repeater 103 to the server (S910);

 Repeat the above process.

The wireless remote meter network system based on the multi-channel cluster according to the present invention can be applied to any system for metering the usage of power, water, hot water, gas, heating and the like.

The wireless remote meter network system based on the multi-channel cluster according to the present invention can increase the management efficiency of the readers of the meter reading area, minimize the probability of collision of the radio meter data, and enable the quick recovery of the meter network. The number of managed nodes per concentrator can be maximized, real-time local metering information can be checked through the wireless remote commander, and remote metering operation efficiency can be increased by interworking with OMR and AMR. It can support a variety of services, guarantees minimum meter reading time, and extends battery life through low power metering technology.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, Various changes, modifications or adjustments to the example will be possible. Therefore, the scope of protection of the present invention should be construed as including all changes, modifications, and adjustments that fall within the spirit of the technical idea of the present invention.

101: remote collector 102: remote indicator
103: remote repeater 104: remote concentrator

Claims (11)

A remote collector for collecting usage from the meter;
A remote indicating unit installed outdoors and connected to the remote collector to check meter reading data of the remote collector;
A remote concentrator connected to the remote indicating unit through a mobile communication network to transmit meter reading data confirmed by the remote indicating unit to a server; And
A remote repeater for extending a communication distance between the remote indicating unit and the remote concentrator;
The remote repeater,
In the absence of the remote concentrator, in the installation of the product, or in the maintenance of the product, the idle mode is an operation mode for minimizing battery consumption when the network channel or group channel is not used in a normal remote meter reading operation for a certain period of time. Mode;
An automatic meter reading (AMR) mode in which the server processes the command requested by the remote concentrator in the entire network and returns the result back to the server;
Off-site meter reading (OMR) mode, which is an operation mode for reading the metering data using a PDA (separate portable communication device); And
Intensive operation mode that collects meter reading data of each remote collector in remote repeater and loads meter reading data collected in remote repeater using PDA (separate portable communication device) and collects them. Type OMR mode; Multi-channel cluster based wireless remote meter network system, characterized in that to operate as.
The method of claim 1,
The communication channel between the remote concentrator and the remote repeater is a network channel, and the communication channel between the remote repeater, the remote indicating unit and the remote collector is a group channel.
delete The method of claim 1,
The idle mode is,
The remote repeater is set to an idle mode;
Change channel configuration to the network channel;
Performing a wake-up after entering a power sleep mode until a command confirmation time of the remote concentrator;
Waiting for commands from the remote concentrator;
If there is a command from the remote concentrator, release the idle mode and execute the command;
Perform the idle mode if there is no command from the remote concentrator;
The remote repeater changes channel settings to a group channel and enters a power sleep mode for battery power save;
Determining whether it is every hour to determine whether it is time to issue the idle mode command;
Every hour, the remote repeater issues a pause command to the remote commander once per hour by a broadcast type command;
The remote repeater repeats a series of processes of changing a channel setting to a network channel and entering a power sleep mode.
The method of claim 1,
The AMR mode,
The remote repeater changes channel setting to a network channel capable of communicating with the remote concentrator;
Perform a power sleep mode and wake up until a command confirmation time of the remote concentrator;
Waiting for commands from the remote concentrator;
To check if there is a preamble signal from the remote concentrator every 5 seconds to check if there is a command from the remote concentrator;
If there is no command from the remote concentrator, the check as to whether there is a command from the remote concentrator is repeated;
Change a channel setting to a group channel when a command is received from the remote concentrator;
Change the channel setting to the group channel, broadcast a preamble signal for a specific time, perform time synchronization of the group channel, and transmit a command of the remote concentrator;
The remote repeater enters a power sleep mode for battery saving, performs a power sleep mode until a time slot for receiving a response to a command from a lower remote indicating unit, and performs a wake up operation;
The remote repeater receives the responses of all the remote indicating units in a predetermined order and stores the responses;
The remote repeater checks whether after the wake-up, all the responses from the remote instructor belonging to the group channel have been received;
If not receiving all the responses from the remote indicating unit, it is regarded as communication failure;
Upon receipt of all responses from the remote indicating section, transmits an acknowledgment (ACK) indicating that the remote indicating section has received a response and the remote repeater changes channel settings to a network channel;
The remote repeater checks whether there is a unicast response request for a command from the remote concentrator;
If there is no unicast response request, waiting for a command from the remote concentrator;
If there is the unicast response request, sends a response of the remote indicating unit to the remote concentrator;
After transmitting all the responses of the remote commander to the remote concentrator, a multi-channel cluster-based wireless remote, characterized in that repeating a series of processes to enter the power sleep mode until the time to confirm the command of the remote concentrator Meter network system.
The method of claim 1,
The OMR mode is,
Set the operation mode of the remote repeater initial remote repeater to OMR and store the remote meter reading setting value to be used in the remote indicating unit;
The remote repeater changes the channel setting to a group channel;
The remote repeater wakes up after entering the power sleep mode;
Determining whether it is every hour to determine whether it is time to issue the command of the OMR mode;
At every hour, the remote repeater issues an OMR mode command to the remote commander once per hour by a broadcast type command;
The remote repeater repeats a series of processes with power sleep, multi-channel cluster-based wireless remote meter network system.
The method of claim 1,
The concentrated OMR mode,
The remote repeater is set to a centralized OMR mode;
Change channel setting to the group channel;
The remote repeater performs a wake-up after entering the power sleep mode until the meter reading start date;
The remote repeater determines whether it is a valid meter reading period and transmits a meter reading request command to the remote indicating unit by a broadcast type command if the meter reading period is valid;
The remote repeater enters a power sleep mode for battery saving, performs a power sleep mode to a time slot for receiving a response to a command from a lower remote commander, and performs a wake up operation;
Receive the responses of all the remote directives in the prescribed order and store the responses;
After the wake-up, the remote repeater checks whether all the responses of the remote commander belonging to the group channel have been received;
If not receiving all the responses from the remote indicating unit, it is regarded as communication failure;
If all the responses have been received from the remote indicating section, send an acknowledgment that the remote indicating section has received a response;
The remote repeater checks whether there is a request for meter data from a PDA (separate portable communication device);
Sending the meter reading data of the remote indicating unit to the PDA (separate portable communication device) when the meter reading data request is requested;
If there is no request for meter reading data, confirm that it is a valid meter reading period;
If it is valid, the remote repeater checks whether there is a request for reading data from a PDA (separate portable communication device);
If not a valid meter period, a multi-channel cluster-based wireless remote meter network system characterized in that to repeat the series of steps to enter the power sleep mode until the next meter reading date.
The method of claim 1,
The remote indicating unit,
Change the channel setting to a group channel that is capable of communicating with the remote repeater;
Perform a power sleep mode and wake up until a command confirmation time of the remote repeater;
Waiting for commands from the remote indicating section;
To check if there is a preamble signal from the remote repeater every 5 seconds to check if there is a command from the remote repeater;
If there is no command from the remote repeater, a check is made every 5 seconds for a command from the remote repeater;
If there is a command from the remote repeater, the remote indicating unit enters a power sleep mode for battery saving and performs a power sleep mode and wakes up to a time slot to transmit a command of the remote repeater to a lower remote collector;
After the wake-up, the remote indicating unit transmits a command of the remote repeater to a lower remote collector and waits for a response from the lower remote collector;
Check whether all responses from the lower remote collector (101) have been received;
If all the responses are not received from the lower remote collector, it is regarded as a communication failure with the lower remote collector and performs a power sleep mode and wakes up until a response request command time of the remote repeater;
Receiving all responses from the lower remote collector, checking whether there is a broadcast type response request from the upper remote relay;
If there is no response request from the upper remote repeater, check whether there is a command from the upper remote repeater;
In response to a request for a response from the upper remote repeater, performing a power sleep mode until a time slot to transmit a response of the remote indicating unit;
Check whether it is a time slot to transmit to the upper remote repeater;
If it is not the time slot to be transmitted to the upper remote repeater, perform a power slim mode, and if it is a time slot to be transmitted to the upper remote repeater, then wake up at the time slot to be transmitted to the remote repeater to send the response of the remote collector to the remote repeater. Transmit;
Multi-channel cluster-based wireless remote meter network system, characterized in that for repeating a series of processes to enter the power sleep mode until a time for confirming the next command of the remote repeater.
The method of claim 1,
The remote collector,
Change the channel setting to a group channel that can communicate with the remote indicating section;
Perform a power sleep mode and wake up until a command confirmation time of the remote indicating unit;
Waiting for commands from the remote indicating section;
To check whether there is a preamble signal from the remote commander every 5 seconds to check if there is a command from the remote commander;
If there is no command from the remote indicating unit, it is repeatedly checked whether there is a command from the remote indicating unit;
If there is a command from the remote commander, the remote collector enters a power sleep mode for battery power save and performs a power sleep mode and wakes up to a time slot to transmit a response to the command of the remote commander;
The remote collector reads the usage data from the meter after the wake up and transmits the read usage data to the remote indicating unit;
Enter a power sleep mode until a time for confirming a next command of the remote indicating unit;
The multi-channel cluster-based wireless remote meter network system, characterized in that for repeating the command confirmation time of the remote indicating unit, and repeats a series of steps to confirm the command.
The method of claim 1,
The remote collector is a multi-channel cluster-based wireless remote meter network system, characterized in that for reading the meter value every meter reading time separately from the portion receiving the remote commander command and stores the value.
The method of claim 1,
The remote concentrator is
Enter a power sleep mode until a time for confirming a command of the server;
When the command confirmation time of the server comes, wakes up and connects to the server;
Change channel configuration to a network channel that is capable of communicating with the remote repeater;
Check whether there is a command from the server;
If there is a command from the server, sends a command in a broadcast manner to the remote repeater for 5 seconds;
If there is no command from the server, it enters a power sleep mode until the next transmission;
After transmitting a command in the broadcast manner, enter a power sleep mode for battery power save, perform a power sleep mode to a time slot for requesting a response of the remote repeater, and perform a wake up operation;
Request a response in unicast to all remote repeaters in a given order, receive and store the response;
If a request is made to the remote repeater in a predetermined order by unicast and no response is received, the communication with the remote repeater in that order is considered failed;
Request responses from all lower remote repeaters, and if received, transmit response data of each remote repeater to the server;
The multi-channel cluster-based wireless remote meter network, characterized in that when the command confirmation time of the server, wakes up to repeat a series of processes to confirm the command.

Images