JP2001136111A - Bank registration method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bank registration method that can automatically cope with even a state change such as load division while making the best use of advantages of bank registration. SOLUTION: A repeater 5 transmits a terminal call signal to any of a plurality of banks (step 101). Then the repeater 5 discriminates whether or not there is a reply to this call signal (step 102). When any reply comes, the level of the reply signal is temporarily stored in a memory 16 and whether or not the signal level is the highest signal level among signal levels having so far been stored is discriminated (step 103). When the reply this time has a reply with the highest signal level, the repeater 5 discriminates that the called terminal 4 is connected to a bank from which the call signal is sent and registers the cross-reference between the terminal and the bank to the memory 16 (step 104).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a distribution line transport system using a distribution line for supplying AC power to a customer as a transmission line, and registers a bank of each terminal connected to a plurality of banks to a terminal control device. It relates to the bank registration method to be performed.

[0002]

2. Description of the Related Art In a distribution line transport system, generally, a plurality of terminals for measuring the amount of electric power used by each customer are connected to each bank of the distribution line. Here, a bank refers to a power distribution division to each customer in charge of one transformer. The repeater collects power consumption data measured by each terminal device of each bank, and transmits the collected data to a central device at a branch office of a power company. This repeater constitutes a terminal control device that communicates with each terminal connected to a plurality of banks using a distribution line as a transmission line.

[0003] The bank to which each terminal is connected is registered in advance in the repeater as a bank. When collecting data on the amount of power consumption, the repeater calls the terminal only to the registered bank. Send a signal. According to such a bank registration method, there is no need to send a call signal of the repeater to another bank, so that the target terminal is immediately called to shorten the communication time and to be consumed by the repeater. Power is reduced.

[0004]

However, in the above-described conventional bank registration method, the bank registration of each terminal device with respect to the repeater has been performed exclusively by an operator. At the time of bank registration, the worker first examines the type of bank to which each terminal is connected from the drawing, and based on the relationship between each terminal and each bank found by this investigation, registers the bank in the repeater. Was. For this reason, in the conventional bank registration method, it took a great deal of labor and time to complete the bank registration for all the terminals.

[0005] In addition, when the distribution of power to each customer in charge of a certain transformer is changed and the bank to which the terminal is connected is changed to another bank, a great deal of labor and labor is required every time the load is divided. The bank registration has to be performed again by the above-mentioned conventional bank registration method which requires time. Also, when the number of terminal devices to be loaded increases or decreases even in the same bank, the bank must be registered again.

An object of the present invention is to provide a bank registration method that can automatically respond to a change in the situation such as load division while taking advantage of the above-described bank registration.

[0007]

SUMMARY OF THE INVENTION To this end, the present invention provides a distribution line bank to which a plurality of terminals are connected, and communication between each terminal connected to the plurality of banks and a distribution line as a transmission line. In a distribution line transport system configured with a terminal control device, the terminal control device sends a terminal call signal to each bank, and based on the level of a response signal from the terminal device, determines the bank to which the terminal device is connected. The terminal control device makes a determination, and the terminal device registers the bank of the terminal device.

According to the present method, the bank registration is automatically performed by the terminal control device itself without manual labor requiring labor and time such as a preliminary investigation.

In the automatic bank registration by the terminal control device itself, for example, the terminal control device sends a terminal call signal to one bank, and if there is a response to this call, the bank of the called terminal device is set. The bank is temporarily registered as one of the above banks, and then the terminal control device sends a terminal call signal to another bank, and if there is a response to this call, a response having the highest response signal level is returned. The registered bank is registered as a legitimate bank of the calling terminal, and if there is no response, the temporarily registered bank is registered as a legitimate bank.

Further, according to the present invention, after registering a bank, a terminal call signal is transmitted only to the registered bank. If there is no response from the terminal device to the terminal call more than a predetermined number of times, the bank registration is deleted and the above-mentioned operation is repeated. The bank registration is performed.

According to this method, even if the relationship between the terminal and the bank is changed due to a change in the situation such as load division, the change in the situation is automatically grasped by the terminal control device, and the bank registration is automatically performed. Will be reworked.

Further, the present invention is characterized in that at the time of this bank registration again, the bank registration of a terminal which does not respond to all the banks in response to the call of the terminal control device is deleted.

According to this method, if the relationship between the terminal and the bank is changed and the already registered terminal is not removed, the bank registration of the terminal is automatically deleted.

[0014]

Next, a bank registration method according to an embodiment of the present invention will be described.

FIG. 1 is an overall configuration diagram of a distribution line transport system to which the present embodiment is applied.

An AC distribution line 1 used as a transmission line is connected to a pole transformer 3, and an AC distribution line 2 also used as a transmission line is connected to a pole transformer 4. . The power distribution section to which AC power is supplied by the AC distribution line 1 constitutes a bank A, and a large number of terminals 1a, 1b,... Are connected to the bank A. Also,
The power distribution section to which the AC power is supplied by the AC distribution line 2 constitutes a bank B, and a number of terminals 2a, 2b,.

Each terminal 1a, 1b,..., 2a, 2b,.
Measures the power consumption of each customer. Each AC distribution line 1,
2 is connected to the repeater 5, and each terminal 1a, 1b,
.., 2a, 2b,.
Each of the AC distribution lines 1 and 2 is collected in the repeater 5 as a transmission path. The repeater 5 is connected to a central device or the like installed in a power company via a communication line connection terminal 6, and sends the collected power consumption data to such a higher-level device.

FIG. 2 is a block diagram showing an example of the internal configuration of the repeater 5. The repeater 5 is connected to each of the AC distribution lines 1 and 2 via a distribution line connection terminal 11, and sends a calling signal from the transmission circuit 12 to each of the terminal devices 1a, 1b,..., 2a, 2b,. The receiving circuit 13 includes terminals 1a, 1b,.
2a, 2b,... Are received. Arithmetic unit 14
Controls the transmission circuit 12 and the reception circuit 13 and performs various arithmetic processing. The communication I / F (interface) 15 is connected to the communication line via the communication line connection terminal 6, and plays a role of an interface between the arithmetic unit 14 and the communication line. This communication line is connected to a higher-level device such as the central device. The memory 16 stores information as to which bank each terminal is connected to, as described later.

Next, a bank registration method in the distribution line transport system having such a configuration will be described with reference to the flowchart of FIG.

First, the transponder 5 has one of a plurality of banks.
A terminal calling signal is transmitted to one bank by the transmission circuit 12 (step 101). Next, the repeater 5 determines whether or not a response to the calling signal is present in the receiving circuit 13 (step 102). If there is a response, the called terminal is temporarily registered in the bank that sent the call signal, and the signal level of the response signal is temporarily stored in the memory 16. Then, it is determined whether or not the signal level is the highest signal level among the signal levels stored so far (step 103). If the current response is the response having the maximum signal level, the repeater 5 determines that the calling terminal is connected to the bank that transmitted the calling signal. Then, the relationship between the terminal device temporarily registered in the memory 16 and the bank to which the terminal device is connected is set as a normal bank registration (step 104).

For example, in the case of the distribution network shown in FIG. 1, the repeater 5 sends the call signal C1 of the terminal 1a to the bank A in step 101 as shown in the transmission / reception timing chart shown in FIG. Then, the repeater 5 performs step 102
Determines whether there is a response to this call.
When there is a response by the response signal A1 as shown in the transmission / reception timing chart, the terminal 1a is temporarily registered in the bank A, and the signal level of the response signal A1 is temporarily stored in the memory 16. Then, it is determined in step 103 whether or not the signal level is the maximum. If the signal has the maximum signal level, the repeater 5 determines that the terminal 1a is connected to the bank A, and in step 104, temporarily registers the bank registered in the memory 16 as normal bank registration.

On the other hand, if there is no response to the terminal call of the repeater 5 in step 102, and step 103
If the response signal level is not the maximum in step (1), it is next determined whether or not the terminal has been called in step 101 for all of the plurality of banks (step 10).
5). If the terminal calling of the terminal has not been completed for all the banks, the bank to be called is changed next (step 106), and the terminal calling of the terminal for the next new bank is stepped. This is repeated at 101.

The terminal call in step 101 is performed for all the banks for one terminal as described above, and the bank having the highest signal level in the response for each bank is detected in step 103. . The bank registration in step 104 is performed on the bank having the maximum signal level detected in step 103. In this way, the bank to which the terminal is connected is determined, for example, by transmitting a terminal call signal to bank A in the power distribution network of FIG. This is because the leaked terminal calling signal may reach the bank B through the pole transformer 4 from the pole 1 via the pole transformer 3 to the high voltage distribution line side.

If there is no such signal leakage, for example, as shown in the transmission / reception timing chart shown in FIG. 4, even if the calling signal C2 of the terminal 2a is transmitted to the bank A, the terminal 2a There is no response because it is connected to. However, if there is the above signal leakage, even if the calling signal C1 of the terminal 1a is sent to the bank B, the calling signal C1 'leaked to the bank A is received by the terminal 1a as shown in the transmission / reception timing chart. You. Upon receiving the calling signal C1 ', the terminal 1a transmits the response signal A1' to the repeater 5
Reply to However, as shown in the transmission / reception timing diagram, the response signal A1 returned by the terminal device 1a to the call signal C1 sent to the bank A is larger than the signal level of the response signal A1 ', and thus the repeater 5 The response signal A1 'is ignored by the processing in step 103.

As shown in the transmission / reception timing chart,
When the calling signal C2 of the terminal 2a is transmitted to the bank B, the terminal 2a returns a response signal A2 to the repeater 5 in response to the calling. The response signal A2 becomes the maximum signal level in the process of step 103, and the terminal 2a is registered in the bank B in the process of step 104.

Next, in the bank registration process, step 101
It is determined whether or not the processing of steps 106 to 106 has been performed for all the terminals (step 107). If the processing has not been completed for all terminals, the same processing is performed for the next terminal (step 108), and the processing of steps 101 to 106 is performed for all terminals. Will be

In the bank registration method according to the present embodiment, the bank registration is automatically performed by the repeater 5 itself without manual labor requiring labor and time such as a preliminary investigation. For this reason, according to the present embodiment, bank registration can be reliably performed in a short time without manual operation, and the labor of the worker can be reduced. In addition, the advantage of bank registration, which allows efficient reading of power consumption data of terminals scattered for each bank without unnecessary communication each time, can be used to shorten the collection time of power consumption data possessed by terminals. Is done.

In the present embodiment, steps 101 to 101
After the bank registration by the processing of step 108, the repeater 5
Sends a terminal call signal only to the registered bank. If there is no response from the terminal to this terminal call more than a predetermined number of times, the bank registration is deleted and step 1 is repeated.
The above-described bank registration in steps 01 to 108 is performed. For example, after registering the bank, the repeater 5 sends the terminal call signal C1 only to the bank A when calling the terminal 1a. If, for example, this call is made five times and the response signal A1 is not returned from the terminal device 1a, all the bank registrations stored in the memory 16 are deleted, and the above-mentioned bank is deleted for all the banks for all the terminal devices Perform the registration process again.

According to such a bank registration method, the terminals 1a, 1b,.
If the relationship between a, 2b,... and the banks A and B is changed, for example, when the terminal 1a is called to the bank A and the connection of the terminal 1a is changed to the bank B and the response is not obtained, This situation change is automatically grasped by the repeater 5 as described above. Similarly, if the number of terminals to be loaded increases or decreases even in the same bank A or bank B,
Similarly, this status change is automatically grasped by the repeater 5. Then, the bank registration is automatically performed again by the repeater 5.

Further, in the present embodiment, at the time of the above-mentioned bank registration again, the repeater 5 deletes the bank registration of the terminal which does not respond to all the banks in response to the call of the repeater 5. For example, if no response is obtained for the banks A and B in response to the call of the terminal 1a of the repeater 5, the repeater 5 deletes the bank registration of the terminal 1a. According to such a bank registration method, the terminals 1a, 1b,.
If the relationship between a, 2b,... and the banks A and B is changed and the already registered terminal 1a is removed and lost, the bank registration of the terminal 1a is automatically deleted by the repeater 5. You.

For this reason, conventionally, every time the load is divided, it has been necessary to re-register the bank again by manually registering the bank, which requires a great deal of labor and time. Bank registration will be promptly and surely renewed.

In the above-described embodiment, a case has been described where the terminal control device that communicates with each terminal device connected to a plurality of banks using a distribution line as a transmission line is the repeater 5. It is not limited to the repeater 5. For example, a higher-level device such as a central device installed in an electric power company may be used as a terminal control device, and the operation of the repeater 5 may be performed by the higher-level device. In this case, the same effect as in the above-described embodiment can be obtained.

[0033]

As described above, according to the present invention, the bank registration time of the terminal can be shortened, and even if a change occurs in the bank connection status of the terminal, the situation can be quickly changed. It is possible to respond.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram of a distribution line transport system according to an embodiment of the present invention.

FIG. 2 is a block diagram showing an example of the internal configuration of the repeater shown in FIG.

FIG. 3 is a flowchart illustrating a bank registration method according to an exemplary embodiment of the present invention.

FIG. 4 is a diagram illustrating transmission / reception timing between a repeater and a terminal in a bank registration method according to an embodiment of the present invention;

[Description of Signs] 1, 2 AC distribution line 1a, 1b, 2a, 2b terminal 3, 4 pole transformer 5 relay 6 communication line connection terminal 11 distribution line connection terminal 12 transmission circuit 13 reception circuit 14 arithmetic unit 15 communication I / F 16 memory

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5G064 AA09 AC09 DA03 5K046 AA03 BA06 BB05 DD02 KK06 PP01 PS34 PS44 PS46 YY01 5K048 AA05 BA32 BA36 CA03 DA02 DC06 EB03 EB10 FA04 HA01 HA02 HA03

Claims (4)

[Claims] 1. A distribution line bank to which a plurality of terminals are connected, and a terminal control device which communicates each of said terminals connected to said plurality of banks with a distribution line as a transmission line. In the distribution line transport system, the terminal control device sends a terminal calling signal to each bank, and the terminal control device determines a bank to which the terminal device is connected based on a level of a response signal from the terminal device. And a bank registration method in which the terminal controller performs bank registration of the terminal. 2. The terminal control device sends a terminal call signal to one of the banks, and if there is a response to the call, temporarily registers the called terminal bank as one of the banks. The terminal controller then sends a terminal call signal to the other banks,
If there is a response to this call, the bank that has the highest response signal level is registered as the normal bank of the calling terminal, and if there is no response, it is temporarily registered. The bank registered as a regular bank is registered.
Bank registration method described in. 3. The terminal control device sends a terminal call signal only to the registered bank after the bank registration, and deletes the bank registration if there is no response from the terminal to the terminal call more than a predetermined number of times. 3. The bank registration method according to claim 1, wherein the bank registration is performed again. 4. The bank registration according to claim 3, wherein, when the bank registration is performed again, the bank registration of a terminal device that does not respond to all the banks in response to the call of the terminal control device is deleted. Method.