JP5000275B2 - Automatic energy load survey system - Google Patents

Description

  The present invention relates to an automatic power amount load survey system for automatically reading the power consumption of each consumer and automatically metering the individual power consumption of various electric products of each consumer.

Traditionally, meter reading for electric power, gas and water has relied on human hands.
However, manual meter reading has made it difficult to secure human hands, and has been hard at dealing with difficult meter reading.
Difficult meter reading refers to about 5 million customers nationwide among 70 million customers, and refers to the following, which is inefficient in meter reading and increases in cost.
・ Regular day meter reading: In particular, a specific customer requires meter reading on a specified date every month.
・ Remote location meter reading: The meter reading efficiency is extremely poor in mountainous areas.
・ Those that can only be read at night in downtown areas.
・ Auto-lock apartments that cannot be read unless the lock is released.
・ There is a dog etc. in front of the gate, which is difficult to read.
In addition, because of the diversification of fee menus due to liberalization, the load of meter reading work is increasing.
In addition, because of manual labor, there are misreading needles due to misreading of meter values and input errors to the terminal (although in reality, it is almost never obvious).
In addition, it takes three times more manpower to perform meter reading independently with electricity, gas, and water.

In order to solve the above-mentioned problems, automatic meter reading using an automatic measuring instrument has been studied and various technical developments have been performed for over 20 years.
Large-scale customers and the like perform automatic meter reading by a wired method.
For automatic power meter reading, the power line conveyance system has been studied for a long time, but it has not been put into practical use due to problems such as weakness to noise.
In the wireless system, gas companies and others are developing technologies for the extra small wireless system.
The system replaces a conventional gas meter with a microcomputer meter with a wireless communication function. This microcomputer meter has a function of shutting off the gas main plug.
Next, a dedicated wireless communication device (master) is attached to the customer's telephone line, and connected to the monitoring center via the telephone line.
Then, when the customer is away from home and there is anxiety about forgetting to turn off the gas, a confirmation request is made to the monitoring center by telephone.
The monitoring center sends a signal to the parent machine via the telephone line to the client's home, receives information on the microcomputer meter, and sends a signal to the microcomputer meter to shut off the gas main plug if the gas is forgotten to be turned off. , Shut off the main gas valve, and notify the client by telephone.
However, this system requires a dedicated wireless communication device (master) and does not automatically measure the gas usage fee.

On the other hand, recently, electric power companies have been conducting PHS operations at affiliated companies. The PHS system was noted because it has both transceiver mode and public mode.
Under such circumstances, Tokyo Electric Power, Tokyo Gas, and the Tokyo Metropolitan Waterworks Bureau agreed in May 2000 as a measure to improve automatic meter reading. It was done until the month.
The overall configuration of this demonstration experiment system is shown in FIG.
That is, a host computer 2 is installed in the joint automatic meter reading center 1 and connected to a network 3 such as a public line or the Internet.
On the other hand, in a customer (general housing / business office) 4 representing a regional block, a parent gateway device (having a PHS public line number) 6 (not shown) provided with an arithmetic unit having a PHS function in the power meter 5 .) Is attached so that it can be connected to the host computer 2 of the joint automatic meter reading center 1 through the PHS public line 7.
Moreover, the arithmetic unit 9 (illustration omitted) which has a PHS subunit | mobile_unit function with a built-in battery is attached to the gas meter 8.
Further, a computing device 9 (not shown) having a PHS slave function external to the battery 11 is attached to the water meter 10.
A parent gateway device (having a PHS public line number) 6 provided with an arithmetic device having a PHS function and an arithmetic device 9 having a PHS slave function connect an external terminal to a meter.
The power source is a parent gateway device (having a PHS public line number) 6 for the power meter 5, which is taken from the power line, the gas meter 8 is an internal battery, and the water meter 10 is an external battery 11.
Since the parent gateway device 6 has a PHS public line number as a PHS function, a monthly basic fee for the PHS public line contract number is required.
Further, the parent gateway device 6 communicates wirelessly with the arithmetic device 9 having a PHS slave function attached to the gas meter 8 and the water meter 10 by using the PHS transceiver function 12.
The arithmetic unit 9 having the PHS slave function uses the PHS transceiver function 12 as the PHS function without having a PHS public line number.
Next, in other customers (general housing / business establishments) 13 in the regional block, as shown in FIG. 9, a gateway device 14 having an arithmetic device having a PHS slave function is attached to the power meter 5. As a PHS function, this gateway device 14 does not have a PHS public line number but uses the PHS transceiver function 12 to perform wireless communication with a parent gateway device (having a PHS public line number) 6. Further, similarly to the above, the arithmetic device 9 having a PHS slave function attached to each meter for gas and water uses the PHS transceiver function 12 for wireless communication.

The operation of automatic meter reading in the demonstration experiment system will be described based on the block diagram showing the flow of meter reading information shown in FIG.
A meter reading command signal from the host computer 2 of the joint automatic meter reading center 1 uses a PHS public line 7, and has a parent gateway device (PHS public line number) of a consumer (general house / business office) 4 representing a regional block. ) 6.
The master gateway device 6 performs meter reading of the power meter, and at the same time, the PHS transceiver function 12 instructs the arithmetic device 9 having the PHS slave function of the gas meter 8 and the arithmetic device 9 having the PHS slave function of the water meter 10 to read the meter. A signal is sent by wireless communication, and the meter reading value from each meter is sent to the parent gateway device 6 by wireless communication by the PHS transceiver function 12.
The parent gateway device (having the PHS public line number) 6 sends the meter reading value from each meter to the host computer 2 using the PHS public line 7.
Further, the parent gateway device 6 is a computing device having a PHS slave function attached to the power meter 5 of other customers (general houses, offices, etc.) 13 in the regional block by the multistage routing 15 of the PHS transceiver. A meter reading command signal is sent to the gateway device 14 provided by wireless communication.
Similarly to the above, the gateway device 14 having the arithmetic device having the PHS slave function of the other consumer 13 sends the meter reading command signal to the arithmetic device 9 having the PHS slave function attached to each meter as the PHS transceiver function. 12, each meter reading value from the arithmetic unit 9 having the PHS slave function of each meter is received by wireless communication by the PHS transceiver function 12, and the PHS transceiver is sent to the parent gateway device (having the PHS public line number) 6. The multi-stage routing 15 returns the wireless communication.
The parent gateway device (having the PHS public line number) 6 transmits these meter reading values to the host computer 2 of the joint automatic meter reading center 1 using the PHS public line 7.
Each month or at a predetermined date and time, the Tokyo Electric Power, Tokyo Gas, and Tokyo Metropolitan Waterworks Bureau separately mail 16 the usage fees for the electric power, gas, and water to the consumers 4 and 13 respectively.

However, in the demonstration experiment system,
(1) Since the line number of the PHS public line is used, there is a problem of the line cost that the monthly basic charge is heavy.
(2) Since the parent gateway device and the gateway device must be used, there is a problem that future expansion is difficult.
(3) There is a problem of the PHS transceiver electric field that it is difficult to construct a multi-stage PHS transceiver unless all the houses in the area are targeted.
(4) There is a problem in the PHS communication area that use outside the PHS area is impossible, such as in a depopulated area.
(5) In order to ensure the reliability of the system, there is a problem of reliability that further sufficient demonstration is necessary.
(6) There is a problem of the cost of delivering a notice that the cost reduction effect is greatly reduced due to the burden of postal delivery charges such as “notice of charge”.

In order to solve the above-mentioned problem, the applicant of the present invention has stated that “a host computer connected to a public line network and a TCP / IP-compatible telephone with a wireless function such as a PHS connected to a public line network disposed at each consumer (parent Machine), and an arithmetic unit with a wireless slave function such as PHS attached to each consumer's electricity, gas, and water meter,
A meter reading signal is sent from the host computer to the parent device of each customer through the public line network by TCP / IP, the parent device sends the meter reading signal to the child device of each meter by a wireless function such as PHS, and the child device of the power meter is an arithmetic unit. The meter reads the meter and returns the meter reading value to the main unit with a wireless function such as PHS. The master unit returns the meter reading value from the slave unit to the host computer via the public line network by TCP / IP. A joint automatic meter reading system for electric power, gas and water, which is characterized by joint automatic meter reading for gas and water. Filed a patent application.
JP 2003-256969 A

FIG. 7 is an explanatory diagram showing the overall configuration of the joint automatic meter reading system according to the invention of the prior application.
Reference numerals 1 to 3, 5 and 8 to 12 are the same as those in FIGS. 9 and 10.
In FIG. 7, reference numeral 17 denotes a wired general public line.
A TCP / IP compatible telephone (base unit) 18 with a PHS function is used, and the base unit has a large crystal screen 19 (not shown).
The arithmetic device 9 with a PHS slave function attached to each meter of the electric power meter 5, the gas meter 8, and the water meter 10 is the same as that shown in FIGS. 9 and 10 as a conventional example.
In the invention of the prior application, each customer (general house, business office, etc.) 20 uses a TCP / IP compatible telephone (base phone) 18 with a PHS function to directly connect the TCP via the general public line 17. / IP can be connected to the host computer 2 of the joint automatic meter reading center 1.

The operation of the joint automatic meter reading system according to the invention of the prior application will be described with reference to FIG.
A meter reading command signal 21 is sent by TCP / IP directly from the host computer 2 of the joint automatic meter reading center 1 to each consumer (general house / business office) 20 using a wired general public line 17.
The TCP / IP-compatible telephone (master unit) 18 with the PHS function that has received it transmits 22 the meter reading command signal 21 to the arithmetic unit 9 having the PHS slave unit function attached to each meter by the PHS transceiver function 12.
And the meter reading value from the arithmetic unit 9 having the PHS slave function attached to each meter of the power meter 5, gas meter 8, and water meter 10 is received by the PHS transceiver function 12, and the wired general public line 17 is used. The data is transmitted to the host computer 1 of the joint automatic meter reading center by TCP / IP.
At this time, when digital data is transmitted by TCP / IP using the wired general public line 17, packet communication is used, so the usage fee is very low.
In addition, the TCP / IP compatible telephone (base unit) 18 with a PHS function according to the present invention has a large liquid crystal screen 19, and therefore can be displayed on the screen by transmitting a usage fee 23 to the base unit 18. In addition, there is no need to mail the usage fee separately.
Furthermore, if the TCP / IP function of the master unit 18 is used, the usage fee and the like can be viewed from the host computer 1 of the joint automatic meter reading center by TCP / IP whenever necessary.

When comparing the joint automatic meter-reading system according to the invention of the earlier application and the above-described demonstration experiment system, the system of the present invention is indispensable in the above-mentioned demonstration system, “parent gateway device equipped with an arithmetic device having a PHS function ( “6” having a PHS public line number) is unnecessary. This eliminates the monthly basic charge for the PHS public line contract number.
Further, the “gateway device 14 provided with an arithmetic device having a PHS slave function” is also unnecessary.
Further, since the system of the present invention is directly connected between the host computer 1 of the joint automatic meter reading center and each customer 10 using a wired general public line 16, the PHS transceiver function of the demonstration system is provided. The multistage routine 15 is not required.
However, although the drawbacks of the conventional example have been improved, there is a problem that even if the total amount of electric power used is known, the actual amount of electric power used for each electric product is not known.

On the other hand, a simple electric energy indicator (manufactured by Toko Seiki Co., Ltd., trade name: Eco Watt) that can easily recognize the electricity charge of household electric appliances is known.
This simple type of electric energy indicator can be displayed alternately on the LCD screen every 3 seconds by connecting the plug of the household electrical appliance you want to measure and plugging it into an outlet. is there.
The amount of electricity used in household electrical appliances can be seen at a glance, which helps to save electricity costs and raise awareness of energy conservation, but there is the inconvenience of having to go to the place where there is an outlet.
FIG. 6 shows an external view of this simplified electric energy display and an explanatory diagram of the usage state.

  The problem to be solved is that individual electric power consumption cannot be confirmed for various electric products together with automatic metering of electric power usage of each consumer.

The present invention uses a broad media line network and attaches a terminating device such as a broadband media line modem for connecting to the arranged broad media line network at each customer, and the terminating device such as the broadband media line modem includes a personal computer and a terminating device. Connect an arithmetic device with a wireless function (master unit)
In addition, an arithmetic unit with a wireless function (slave unit) having an interface with the power meter is attached to the power meter, and further, a power consumption machine with a wireless function (grandchild machine) is attached to the outlet portion of each consumer electric product. By
The main feature is to perform automatic meter reading of electric power consumption of each consumer and automatic meter reading of individual electric power consumption for various electric products of each consumer.

The electric energy automatic load survey system of the present invention has the following advantages.
(1) A monthly basic fee for the PHS public line number is separately provided because a wireless function computing unit (master unit) having an interface with a terminating device is simply attached to a terminating device such as a modem for ADSL or optical media. Does not occur.
(2) An arithmetic device with a wireless function (master) having an interface with a terminal device is low in cost because it only adds a wireless function, and is highly versatile.
(3) Since a broadband media line is used, it can be installed anywhere in the country.
In addition, it is possible to introduce each house without targeting all the houses in the area.
Furthermore, even in difficult meter reading areas where the distance between each house exceeds the limit of the PHS transceiver, since a broad media line is used, automatic meter reading can be introduced.
(4) Regarding the notice delivery cost problem, “fee notice” can be sent to the monitor screen of the personal computer. Furthermore, the data stored in the automatic meter reading center can be viewed at any time by TCP / IP.
(5) With regard to various electric products, it becomes possible to grasp the detailed usage status regarding individual power consumption.

A host computer of a joint automatic meter reading system connected to a network such as a broad media line,
At each customer, install a terminating device such as a broadband media line modem for connecting the arranged broadband media line network,
Connect a computing device with a wireless function (base unit) that has an interface with a personal computer and a terminating device to a terminating device such as a broadband media line modem.
In addition, an arithmetic unit (slave unit) with a wireless function having an interface with the power meter is attached to the power meter,
In addition, it consists of attaching a power consumption machine with wireless function (grandchild machine) to the outlet part of each consumer's various electrical products,
By connecting the computing device (master unit) with a wireless function of each customer to the broadband media line network, a meter reading command signal is sent from the host computer to the parent unit of each customer via the broadband media network by TCP / IP,
The master unit sends a meter reading command signal to the slave unit of the power meter with a wireless function, the slave unit of the power meter performs meter reading of the power meter with an arithmetic device, and returns the meter reading value to the master unit with a wireless function.
In addition, the master unit sends a meter reading command signal to the grandchild machine of various electric appliances by wireless function, and the grandchild machine sends its power consumption to the parent machine by wireless function,
Furthermore, the master unit returns the meter reading values from the slave unit and the grandchild unit to the host computer via the broadband line network by TCP / IP.
It is also possible to grasp the individual power consumption of various electric appliances by automatic metering of electric power consumption of each consumer and automatic power consumption load survey that performs automatic meter reading of individual electric power consumption for each consumer's various electric appliances. It was realized.

FIG. 1 is an explanatory diagram showing the overall configuration of an automatic meter reading system according to the present invention.
Reference numerals 1, 2, 4, and 5 are the same as those in FIGS. 7 to 10.
In FIG. 1, reference numeral 24 denotes a broad media line network such as an ADSL / optical cable.
A host computer 2 of the joint automatic meter reading center 1 connected to the broad media line network 24;
In each customer 4, a broad media line modem termination device 25 is attached to the broad media line 24, a personal computer 26 is connected to the broad media line modem termination device 25, and the termination device 25 is terminated via a modular cable 27. An arithmetic unit (base unit) 28 with a wireless function having an interface with the apparatus is connected.
In this way, the arithmetic unit (master unit) 28 with a wireless function is connected to the broad media line network 24 and directly connected to the host computer 2 of the joint automatic meter reading center 1 via the broad media line 24 by TCP / IP.
FIG. 2 shows an external view in which an arithmetic unit (master unit) 28 having a wireless function having an interface with a termination device is connected to a termination device 25 such as a broadband media line modem via a modular cable 27. FIG.

On the other hand, a computing device (slave unit) 29 with a wireless function having an interface with the power meter is attached to the power meter 5 of each consumer 4.
Moreover, the plug of the power consumption machine (grandchild machine) 31 with a wireless function is inserted and attached to the commercial power outlet 30 of each consumer 4.
And the various electric products 32 of each consumer 4 connect the plug of the commercial power supply power line 33 to the power consumption machine (grandchild machine) 31 with a wireless function.
The external view which connected the refrigerator as the various electric products 32 of each consumer 4 to the power consumption machine (grandchild machine) 31 with a wireless function is shown in FIG.

A wireless power consumption machine (grandchild machine) 31 with a wireless function has a shape similar to a simple power amount display device of a conventional product, and includes a power amount detection unit 34, a locking unit 35, a wireless transmission / reception unit 36, and The external display unit 37 is used.
The power consumption machine (grandchild machine) 31 with a wireless function measures and records the individual power consumption and usage time of various connected home appliances 32, and its external display unit 37 (liquid crystal screen) The power consumption, energization time, and electricity charge are displayed alternately.
FIG. 4 shows a sequence diagram of the power consumption machine (grandchild machine) 31 with a wireless function.

  In the present invention, an arithmetic unit with a wireless function (master unit) 28 having an interface with a terminal device, an arithmetic unit with a radio function (slave unit) 29 having an interface with a power meter, and a power consumption unit with grand function (grandchild) The “with wireless function” in (machine) 31 refers to a wireless function such as Bluetooth or a small radio, but since this field has advanced rapidly, it is not limited to this as long as it has an equivalent function.

The operation of the automatic meter reading system according to the present invention will be described with reference to the sequence diagram shown in FIG.
A meter reading command signal 38 is sent from the host computer 2 of the joint automatic meter reading center 1 directly to each customer 4 by TCP / IP using the broad media line network 24.
Receiving this, the arithmetic unit (master unit) 28 with a wireless function transmits a meter reading command signal 38 to the arithmetic unit (slave unit) 29 with a wireless function attached to the power meter 5 by the Bluetooth radio function 39.
Then, the arithmetic unit (slave unit) 29 with a wireless function attached to the power meter 5 performs meter reading, and returns the meter reading value as a power usage amount to the arithmetic unit (base unit) 28 with a wireless function.

In addition, the arithmetic device with a wireless function (master unit) 28 that has received the meter-reading command signal 38 transmits the meter-reading command signal 38 to the power consumption machine with wireless function (grandchild machine) 31 by the Bluetooth wireless function 39.
And the power consumption machine (grandchild machine) 31 with a wireless function is an arithmetic unit with a wireless function by using the Bluetooth wireless function to measure and record the power consumption and energization time of various electric products 32 such as a TV and a refrigerator. A reply 40 is made to the (master) 28.

  A wireless device that has received a reply 40 of power usage from a wireless function computing device (slave unit) 29 attached to the power meter 5 and a wireless function power consumption unit (grandchild device) 31 connected to various electrical products 32 The functional arithmetic unit (master unit) 28 uses the broad media line network 24 to send the power usage of each customer 4 and the individual power usage of various electric products to the host computer 2 of the joint automatic meter reading center 1. Reply 40.

On the other hand, the host computer 2 of the joint automatic meter reading center 1 calculates based on the electric power consumption returned from each consumer 4 and consumes power to the personal computer 26 of each consumer 4 via the broad media line network 24. Send 41 a volume and fee notification.
For this reason, since the power consumption amount and the charge are displayed on the monitor screen of the personal computer 26 of each consumer 4, it is not necessary for the electric power company to mail the usage fee separately.
In addition, as necessary, the host computer 2 of the joint automatic meter reading center 1 analyzes the power consumption of each consumer, such as daily, monthly, and hourly power consumption and charges, or year-on-year comparison. It can be carried out.
Furthermore, it is possible to analyze the amount of electric power used for each consumer's various electric products, such as the amount of electric power used for each day, month, and time, or year-on-year comparison.
Therefore, each customer 4 can browse necessary information such as a power usage fee from the host computer 1 of the joint automatic meter reading center using the broad media line network 24 whenever necessary.
In addition, information on individual power consumption for various electrical products can be viewed.
In addition, since transmission / reception of data to / from the host computer 1 of the joint automatic meter reading center is performed using TCP / IP using the broad media line 24, the usage fee is generally charged because of a flat fee system. Absent.

As described above, the automatic power amount load survey system of the present invention has the following industrial applicability.
(1) Since a broadband media line is used, it can be installed anywhere in the country.
In addition, it is possible to introduce each house without targeting all the houses in the area.
Furthermore, even in difficult meter reading areas where the distance between each house exceeds the limit of the PHS transceiver, since a broad media line is used, automatic meter reading can be introduced.
(2) Also, in recent years, there is no effective measure to improve the global warming and the energy conservation movement has been called out. In particular, electricity use occupies a large weight in the energy demand, but the actual situation is that it does not go beyond speculation.
Along with automatic meter reading, if you can clearly understand the actual power usage of each electric product, it can be a powerful data for energy conservation movement.
(3) In addition, since the meter reading value can be obtained when necessary by automatic meter reading of the power consumption, the power bill currently set for day and night is in units of 1 hour and 30 minutes In order to cope with the peak time, the electric power company can set a free charge, for example, by increasing the peak power charge and suppressing the amount of power used.

It is explanatory drawing which shows the whole structure of the electric energy automatic load survey system which concerns on this invention. FIG. 2 is an external view in which an arithmetic device with a wireless function (master unit) is connected to a terminating device such as a modem of a broadband media line such as ADSL or an optical line used in the present invention. It is the external appearance schematic diagram which connected the power consumption machine with a wireless function (grandchild machine) to the consumer electronics of a consumer used in this invention. It is a sequence diagram of the power consumption machine with wireless function (grandchild machine) according to the present invention. It is a block diagram which shows the sequence of the electric energy automatic load survey system which concerns on this invention. It is explanatory drawing of the simple electric energy indicator which concerns on a prior art example. It is explanatory drawing which shows the whole structure of the joint automatic meter-reading system which concerns on a prior application. It is a block diagram which shows the sequence of the joint automatic meter-reading system which concerns on a prior application. It is explanatory drawing which shows the whole structure of the joint automatic meter-reading system which concerns on the demonstration experiment system of a prior art example. It is a block diagram which shows the sequence of the joint automatic meter-reading system which concerns on the demonstration experiment system of a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Joint automatic meter-reading center 2 Host computer 3 Internet etc. network 4 Consumer 5 Electricity meter 6 Parent gateway apparatus provided with arithmetic device which has PHS function 7 PHS public line 8 Gas meter 9 Arithmetic device which has PHS cordless handset function 10 Water meter 11 Batteries 12 PHS transceiver functions 13 Other customers in the regional block (general housing, offices, etc.)
14 Gateway device with arithmetic unit having PHS slave function 15 Multistage routing of PHS transceiver 16 Notification of charges by mail, etc. 17 Wired general public line 18 TCP / IP compatible telephone with PHS function (master phone)
19 Large LCD screen 20 Each consumer (general housing / business)
21 Meter-reading command signal 22 PHS transceiver function 12 sends meter-reading command signal 21 23 Sends notification of charges 24 Broad media line network such as ADSL / optical cable 25 Broad media line modem termination equipment 26 PC 27 Modular cable 28 Termination equipment and Arithmetic unit with a wireless interface (master unit)
29 Arithmetic unit (slave unit) with wireless function having interface with power meter
30 Commercial power outlet 31 Power consumption machine with wireless function (subordinate machine)
32 Electric appliances such as TVs and refrigerators 33 Commercial power line 34 Electric energy detection unit 35 Locking unit 36 Wireless transmission / reception unit, commercial power outlet 37 External display unit 38 Meter reading command signal 39 Meter reading command signal 38 is transmitted by Bluetooth wireless function 40 Returns the amount of power used by the Bluetooth wireless function. 41 Sends price information

Claims (3)

A host computer of a joint automatic meter reading system connected to a network such as a broad media line,
At each customer, install a terminating device such as a broadband media line modem for connecting the arranged broadband media line network,
Connect a computing device with a wireless function (base unit) that has an interface with a personal computer and a terminating device to a terminating device such as a broadband media line modem.
In addition, an arithmetic unit (slave unit) with a wireless function having an interface with the power meter is attached to the power meter,
In addition, it consists of attaching a power consumption machine with wireless function (grandchild machine) to the outlet part of each consumer's various electrical products,
By connecting the computing device (master unit) with wireless function of each customer to the Broadmedia circuit network, a meter reading command signal is sent from the host computer to the parent device of each customer via the Broadmedia circuit network by TCP / IP. ,
The master unit sends a meter reading command signal to the slave unit of the power meter with a wireless function, the slave unit of the power meter performs meter reading of the power meter with an arithmetic device, and returns the meter reading value to the master unit with a wireless function.
In addition, the master unit sends a meter reading command signal to the grandchild machine of various electric appliances by wireless function, and the grandchild machine sends its power consumption to the parent machine by wireless function,
Furthermore, the master unit returns the meter reading values from the slave unit and the grandchild unit to the host computer via the broadband line network by TCP / IP.
An automatic power consumption load survey system that performs automatic meter reading of power consumption of each consumer and automatic metering of individual power consumption of each consumer's various electrical products. In the automatic electric energy load survey system according to claim 1,
By the power consumption machine with wireless function (grandchild machine) attached to the outlet part of various electrical products of each consumer,
In response to the meter reading command signal sent from the arithmetic unit with wireless function (master unit) to the grandchild device by wireless function, the individual power consumption of each consumer's various electrical products is returned to the master unit by wireless function.
By sending the meter reading value from the grandchild machine to the host computer via the broadband line network by TCP / IP,
An automatic power load survey system that uses a host computer to analyze the amount of electric power used for each consumer's electrical products on a daily, monthly, and hourly basis, etc. . In the electric energy automatic load survey system according to claim 1 and claim 2,
In the host computer of the joint automatic meter-reading system, we analyze the amount of electricity used by each consumer, such as daily usage, monthly usage, hourly usage, and charges, or year-on-year comparison.
In addition, we analyze the amount of electricity consumed by each consumer's various electrical appliances, such as daily, monthly, and hourly usage, or year-on-year changes.
An automatic power meter reading and an electric energy load survey system characterized by providing information to each consumer using a network such as a broad media line.