JP2007299200A - Load survey system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a load survey system having a measurement means measuring utility supply quantity to a consumer, an operation condition detection means detecting an operation condition of a utility using apparatus for use of utility by the customer, and a supply quantity output means outputting a measurement result by the measurement means in association with a detection result by the operation condition detection means for outputting the utility supply quantity while allowing recognition of the utility supply quantity during operation of the utility using apparatus for each operation condition by a simple and rational configuration for highly precise analysis/prediction of the utility supply quantity to the customer. <P>SOLUTION: This load survey system is provided with a life circumstance detection means 25 detecting a life circumstances of the customer, and the supply quantity output means 26 outputs the measurement result by the measurement means in association with the detection result by the operation condition detection means 22 and a detection result by the life circumstance detection means 25. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention provides a measuring means for measuring a utility supply amount to a consumer, an operating state detecting means for detecting an operating state of a utility-utilizing device that uses a utility in the consumer, and a measurement result of the measuring means for the operation. The present invention relates to a road survey system including supply amount output means for outputting in association with a detection result of a state detection means.

  For utilities such as gas and electric power supplied to utility equipment such as gas equipment and electrical equipment installed in consumers, utilities for consumers are provided by measuring means such as gas meters and power meters installed in consumers. The supply amount is measured, and the utility fee charged to the consumer is calculated from the utility supply amount.

  And as a conventional road survey system for performing highly accurate analysis and prediction of the utility supply amount to the consumer, an operating state detecting means for detecting whether or not the utility using device in the consumer is operating And supply amount output means for outputting the measurement result of the measurement means in association with the detection result of the operation state detection means, for example, individually outputting the utility supply amount to the consumer during operation of the utility using device. What is provided is known (for example, refer to Patent Documents 1 and 2).

Moreover, the utility supply amount to the consumer at the time of operation of such a utility utilization apparatus is planned in the future, for example, by analyzing the correlation between the operation state of the utility utilization apparatus and the utility supply amount to the consumer. It can be used for predicting the utility supply amount to consumers during operation of utility-utilizing equipment.
Furthermore, if it is decided to increase or decrease the discount rate applied to the utility fee charged to the customer according to the utility supply amount to the consumer during operation of the utility utilizing device, Incentives for driving promotion or driving suppression can be provided, and thereby, demand control such as leveling or increasing / decreasing the utility supply amount to consumers can be performed.

  In addition, the operation state detection means of the road survey system described in Patent Documents 1 and 2 described above is based on the utility ON / OFF information of the utility using device acquired by communicating with the utility using device. Although it is configured to detect the driving state, as another configuration, for example, when the utility using device consumes the utility with a specific consumption pattern at the time of ignition or extinguishing, it is measured by the measuring means There is known an operation state detection means configured to detect the operation state of the utility using device by analyzing whether or not the utility supply amount fluctuation pattern includes the consumption pattern peculiar to the utility using device. (See, for example, Patent Documents 3 and 4).

Japanese Patent Laid-Open No. 9-180084 JP 2000-298790 A JP 2000-283815 A JP 2004-295296 A

  The utility using devices as described above may be operated in a plurality of different driving situations.

  And if the utility supply amount to the consumer can be recognized according to the operating status of such utility-utilizing equipment, the utility supply amount to the consumer can be analyzed and predicted with extremely high accuracy. In the conventional systems described in Patent Documents 1 to 4, apart from the operation state of the utility utilizing device, the operation state of such utility utilizing device cannot be recognized.

  In addition, if the utility using device is configured so that the user can input the operating status as described above and the input operating status is transmitted to the system side by communication or the like, the utility using device on the system side However, it is necessary to make the utility equipment have a complicated configuration of inputting and sending out these driving conditions and the user needs to input the driving conditions frequently. Not reasonable from the problem.

  The present invention has been made in view of the above-described problems, and its purpose is to provide utility-utilizing equipment with a simple and rational configuration so as to perform highly accurate analysis and prediction of utility supply amount to consumers. The present invention is to provide a load survey system capable of outputting the utility supply amount to the consumer in a state where the utility supply amount to the consumer at the time of operation can be recognized according to the operation status.

In order to achieve the above object, a road survey system according to the present invention includes a measuring means for measuring a utility supply amount to a consumer, and an operating state detection for detecting an operating state of a utility using device that uses the utility in the consumer. And a supply amount output means for outputting the measurement result of the measurement means in association with the detection result of the driving state detection means, the first characteristic configuration is a life in the consumer A living state detection means for detecting the state is provided,
The supply amount output unit is configured to output the measurement result of the measurement unit in association with the detection result of the driving state detection unit and the detection result of the living state detection unit.

That is, the present inventors have found that there is a certain correlation between the driving situation and the living state of the consumer when the utility using device is driven in a plurality of different driving situations, and completes the present invention. It came to.
That is, according to the first characteristic configuration, the utility-operated device is driven from the operation state of the utility-utilized device detected by the operating-state detector and the life state of the consumer detected by the life-state detector. Since the situation can be recognized, the utility amount is supplied from the utility supply amount to the consumer output in association with the detection result of the driving state detection means and the detection result of the living state detection means by the supply amount output means. It is possible to recognize the utility supply amount to the consumer at the time of operation of the use device according to the operation state having a correlation with the living state.
Therefore, according to the present invention, the utility supply amount to the consumer at the time of operation of the utility-utilizing device is determined by a simple and rational configuration to perform highly accurate analysis and prediction of the utility supply amount to the consumer. A load survey system capable of outputting the utility supply amount to the consumer in a state that can be recognized separately can be realized.

  The second characteristic configuration of the load survey system according to the present invention is the presence / absence state detection that detects, as the living state, the presence / absence state of a person in at least the usage space of the utility using device in the consumer as the living state detection means. There is a means.

  According to the second characteristic configuration, the operating state of the utility using device detected by the operating state detecting unit and the presence / absence state of a person in the use space of the utility using device detected by the presence / absence detecting unit. In addition to the normal driving situation where the utility usage equipment is operated in a usage space where a person exists, the utility usage equipment in another driving situation such as a driving situation where the utility usage equipment is operated in a usage space where no person exists. Can recognize driving. Therefore, from the utility supply amount to the customer output in association with the detection result of the operation state detection unit and the detection result of the absence state detection unit by the supply amount output unit, The utility supply amount to the consumer can be recognized according to the above operating conditions.

  A third characteristic configuration of the road survey system according to the present invention is a lighting / light-off state in which a lighting / light-off state of a lighting device in at least a usage space of the utility-using device in the consumer is detected as the living state as the living state detection means It is in the point provided with the detection means.

  According to the third characteristic configuration, the operation state of the utility using device detected by the operation state detecting unit, and the lighting device on / off state in the use space of the utility using device detected by the on / off state detecting unit, Therefore, in addition to the normal driving situation where the utility equipment is operated in a usage space where it is considered that there is a person because the lighting equipment is lit, there is no person because the lighting equipment is turned off. It is possible to recognize the operation of the utility using device in another operating situation such as an operating situation in which the utility using device is operated in a use space. Therefore, from the utility supply amount to the consumer output in association with the detection result of the operation state detection unit and the detection result of the lighting-off state detection unit by the supply amount output unit, The utility supply amount to the consumer can be recognized according to the above operating conditions.

  The fourth characteristic configuration of the load survey system according to the present invention calculates a utility fee charged to the consumer from the utility supply amount measured by the measurement unit, and outputs the utility fee output by the supply amount output unit. There is a fee calculation means for determining a discount fee to be applied to the utility fee based on the utility supply amount when the utility using device is operated in a specific living state.

  According to the fourth feature configuration, as described above, the consumer output in association with the detection result of the driving state detection unit and the detection result of the living state detection unit by the supply amount output unit. From the utility supply amount to the utility, the utility supply amount to the consumer at the time of operation of the utility using device can be recognized according to the driving situation having a correlation with the living state. If it is decided to increase or decrease the discount rate applied to the utility fee charged to the customer according to the utility supply amount to the customer during driving in a specific living state corresponding to the driving situation, Can provide incentives to promote or suppress the operation of utility equipment in specific operating situations. Ri, the utility supply amount of leveling or demand control increase or decrease in the customer can be carried out accurately and precisely.

Embodiments of a load survey system according to the present invention will be described with reference to the drawings.
As shown in FIG. 1, a gas using device (an example of utility using device) A is installed in a gas consuming device (an example of utility using device) A that uses gas (an example of utility using device). A load survey system LS capable of outputting the utility supply amount to the consumer is installed in a state where the gas supply amount during the operation can be recognized according to the operation status of the gas utilization device A.

First, the state of the consumer will be described.
In this embodiment, a general household having a plurality of spaces such as a kitchen, a bathroom, a dining room, a living room, an entrance, and the outdoors is assumed as a consumer. However, the state of these consumers can be appropriately changed. .

In this consumer, as a gas utilization device A that uses gas, a hot water heater 1 is installed outdoors, a stove 2 is installed in a kitchen, and a fan heater 3 is installed in a living room.
Further, the consumer is provided with a gas meter GM having a measuring means 21 for measuring the gas supply amount to these gas utilization devices A. Although details will be described later, the gas supplier uses the gas meter GM. It recognizes the gas supply amount for the current month to the consumer, and calculates a utility fee charged to the consumer from the gas supply amount.

The hot water heater 1 is, as is known, a hot water supply operation for supplying hot water generated by heating tap water to a hot water tap 10 provided in a kitchen, a hot water operation for supplying the hot water to a bathtub 11 in the bathroom, Provided in the bathroom drying operation for heating the circulating water radiated by the bathroom heating dryer 12 provided in the bathroom and ventilating the bathroom to dry the bathroom itself or the laundry dried in the bathroom, and in the dining room The floor heating panel 13 is configured to perform a floor heating operation or the like for heating the circulating water radiated by the floor heating panel 13 to perform floor heating of the dining room.
In addition, a remote controller 15 for starting and stopping each operation as described above is installed in the kitchen, bathroom, and dining room.

  The stove 2 is configured to perform a cooking operation in which gas is burned in a kitchen to heat and cook an object to be heated, as is well known, and the fan heater 3 is, as is well known, a room such as a living room. The heating operation for heating the room by burning gas is performed.

In addition, these gas utilization devices A can start / stop operation that can be recognized at the time of start of operation and when operation is stopped with respect to a controller CO, which will be described later, via a home network (not shown) provided in the consumer. It is configured to send a signal.
That is, the hot water heater 1 can recognize the controller CO at the start and stop of the hot water supply operation, the hot water filling operation, the bathroom drying operation, and the floor heating operation. Send start / stop signal.
The stove 2 also sends an operation start / stop signal that can be recognized to the controller CO when the cooking operation starts and stops, and the fan heater 3 also performs a heating operation to the controller CO. An operation start / stop signal which can be recognized at the time of starting and stopping is sent out.

  A lighting fixture L is provided in each of the kitchen, bathroom, dining, and living room, and these lighting fixtures L are switched on and off by a lighting switch LSW. The lighting switch LSW provided for the kitchen lighting fixture L is called a kitchen lighting switch 5, and the lighting switch LSW provided for the bathroom lighting fixture L is called a bathroom lighting switch 6. The lighting switch LSW provided for the dining lighting fixture L is called a dining lighting switch 7, and the lighting switch LSW provided for the living lighting fixture L is called a living lighting switch 8.

  Further, these lighting switches LSW are configured to send a lighting / light-out signal capable of recognizing them to the controller CO via the home network when the light is turned on or off.

A security switch SSW is provided at the entrance, and the security switch SSW is configured to recognize the presence / absence of a person in the consumer by an operation when the consumer of the consumer goes out and returns. . In the known home security system, the security switch SSW discriminates between being at home where a person is present at a consumer and being absent from a person at the consumer, for example, a person to the consumer who is absent. It is used for switching to a warning mode that warns of the intrusion of a person, switching to a monitoring mode for monitoring a person's activity in a consumer who is at home.
In addition, the security switch SSW is configured to send an out / return signal that can be recognized to the controller CO via the home network when going out and returning home.

Next, the configuration of the load survey system LS will be described.
As shown in FIG. 2, the load survey system LS includes a gas meter GM provided on the consumer side, a controller CO installed in a communicable state with the gas meter GM, and a controller CO provided on the gas supplier side. It is constructed by hardware such as a center server CS installed in a state where it can communicate with each other.

  The gas meter GM includes a measuring unit 21 that measures the amount of gas supplied to a consumer. Specifically, the measuring unit 21 outputs a pulse signal each time a gas passes through a predetermined flow rate. The pulse signal is counted and the gas supply amount is measured in the form of an integrated flow rate.

  The controller CO and the center server CS are configured to be communicable via a predetermined communication network NE such as the Internet, a public line, a dedicated line or the like by means of communication means 28 and 29 provided respectively.

  Further, the controller CO is connected to the gas meter GM in such a manner that the pulse signal output from the measuring means 21 of the gas meter GM is input through a predetermined communication line, and the CPU executes a predetermined computer program. Thus, it is configured to function as an operation state detection unit 22, an absence / presence state detection unit 23, a light extinction state detection unit 24, and a supply amount output unit 26, which will be described later, and further from a nonvolatile memory or the like. The storage unit 27 is provided.

The operation state detection means 22 is configured to detect the operation state of each gas utilization device A.
Specifically, when the operation state detection unit 22 receives an operation start / stop signal from each of the gas utilization devices A described above via the home network, the hot water supply operation by the hot water heater 1 and the bathroom drying operation are performed. The floor heating operation, the cooking operation by the stove 2 and the heating operation by the fan heater 3 are recognized as being in operation from the start to the stop.

The presence / absence state detection unit 23 is configured to detect the presence / absence state of the consumer as the living state as the living state detection unit 25 that detects the living state of the consumer.
Specifically, the presence / absence state detection means 23 receives the out / return signal from the security switch SSW via the home network, so that there is a person in the consumer from the time of going out to the time of returning home. Not recognized as being away.

The on / off state detection means 24 detects, as the living state detection means 25 for detecting the living state of the consumer, the on / off state of the lighting device L at least in the usage space of the gas using device A as the living state. Is configured to do.
Specifically, the lighting / light-off state detecting means 24 uses the gas utilization device A in the use space, that is, the kitchen in which the hot water tap 10 or the stove 2 as the hot water supply part of the hot water heater 1 is installed, the hot water heater 1. The bathtub 11 as the hot water supply section and the bathroom in which the bathroom heating dryer 12 as the heat radiating section is installed, the dining room in which the floor heating panel 13 as the heat radiating section of the hot water heater 1 is installed, and the fan heater 3 are installed. The lighting switch LSW (kitchen lighting switch 5, bathroom lighting switch 6, dining lighting switch 7, living room lighting switch 8) is turned on / off via the home network for each living space in the living room. By receiving the signal, it is recognized that the lighting switch LSW is turned off until it is turned on.

The supply amount output means 26 is configured to output the measurement result of the measurement means 21 of the gas meter GM. Specifically, the supply means output means 26 outputs the measurement means 21 at every predetermined flow rate. The pulse signal is counted and the total gas supply amount is recognized and output, and pulse signals in a specific period to be described later are individually counted, and the gas supply amount in the specific period is recognized and output.
The gas supply amount output by the supply amount output means 26 is stored in the storage unit 27.

Further, the supply amount output unit 26 is configured to output the measurement result of the measurement unit 21 of the gas meter GM in association with the detection result of the driving state detection unit 22 and the detection result of the living state detection unit 25. Has been.
Specifically, by the supply amount output means 26, at least the detection result of the driving state detection means 22 and the presence / absence state detection means 23 and the lighting / light-off state detection means 24 as the living state detection means 25 are at least. In the specific period specified by one detection result, the pulse signals output from the measuring means 21 are individually counted, the gas supply amount in the specific period is recognized, and the gas supply amount in the specific period is stored in the storage unit 27. Remembered.

  Further, the specific period is a period in which the specific gas utilization device A is operated in a specific operation situation. Specifically, the operation state detection means 22 detects that the gas utilization device A is in operation, and This is a period during which the living state detection means 25 detects that the living state is a specific living state.

In the present embodiment, the period during which the hot water heater 1 is operated in a specific operating condition is set as the specific period, and the specific period will be described below.
An unmanned hot water filling operation period, an unmanned bathroom drying period, and an unmanned floor heating period shown below are set with a period during which the hot water heater 1 is operated in a specific operation state as a specific period.

  During the unmanned hot water operation period, the hot water heater 1 is detected by the operation state detection means 22 and is detected as being absent by the absence state detection means 23, or The hot water heater 1 is in a hot water operation in a specific operating state in which the bathroom is detected as being turned off by the lighting / light-off state detection means 24, that is, at least in the bathroom of the customer. Is the period.

  The unmanned bathroom drying operation period is detected by the operation state detection means 22 that the hot water heater 1 is in the bathroom drying operation and is detected by the absence state detection means 23, or The hot water heater 1 is in the bathroom drying operation in a specific operation situation in which a person is not present in at least the bathroom in the consumer during the period when the bathroom is detected to be turned off by the lighting on / off state detection means 24 Is the period.

  During the unattended floor heating period, it is detected that the hot water heater 1 is under floor heating operation by the operation state detection means 22 and is detected by the absence state detection means 23, or During the period when the living room is detected to be turned off by the turn-off state detecting means 24, that is, in a specific operating situation where there is no person in the living room at least in the consumer, the hot water heater 1 is in the floor heating operation. It is a period. The unmanned floor heating period can be recognized as a period in which the floor heating operation is performed before a person comes in the living room.

The supply amount output means 26 individually recognizes the gas supply amounts during the unmanned hot water operation period, unmanned bathroom drying period, and unmanned floor heating period, and stores them in the storage unit 27.
In addition to the hot water heater 1, a period in which the gas using device A such as the stove 2 and the fan heater 3 is operated in a specific operation state may be set as the specific period.

  The communication unit 28 communicates with the communication unit 29 of the center server CS, and appropriately transmits various information stored in the storage unit 27 to the center server CS in response to a command on the center server CS side. It is configured.

  The center server CS, when the CPU executes a predetermined computer program, obtains information related to the gas supply amount measured by the measurement means 21 from the controller CO side, and the customer from the gas supply amount. The gas supplier performs a charging process for charging the gas charge calculated by the charge calculating means 31 to the customer.

Specifically, the automatic meter-reading means 30 acquires the total gas supply amount in the charge billing period from the controller CO side at the end of a predetermined charge billing period such as every month, and the specific period described above. That is, the gas supply amount in the unmanned hot water operation period, unmanned bathroom drying period, and unmanned floor heating period described above, and the period in which the gas utilization device A of the stove 2 and the fan heater 3 is operated in a specific operation state. It is configured to acquire the gas supply amount and the like.
Therefore, the gas supplier can recognize the gas supply amount in the specific period in which the operating conditions of the hot water heater 1 which is the gas utilization device A are different from each other in addition to the total gas supply amount in the billing period. The gas supply amount at the consumer can be recognized according to the operating status of the gas appliance A.

The charge calculation means 31 is configured to calculate the gas charge charged to the consumer by multiplying the total gas supply amount by the unit price of the gas. Based on the quantity, a discount rate to be applied to the calculated gas rate is determined.
For example, for each of the specific periods of the unmanned hot water operation period, unmanned bathroom drying period, and unmanned floor heating period, by increasing or decreasing the discount rate according to the gas supply amount in the specific period, An incentive to promote or suppress operation of the hot water heater 1 in the operation state of the hot water heater 1 corresponding to a specific period is given, and thereby, demand control such as leveling or increasing / decreasing the gas supply amount is performed accurately and finely. be able to.
Further, the center server CS is given to the consumer by displaying the information on the discount fee on a dedicated display unit installed in the consumer, or displaying it on the personal computer owned by the consumer via the Internet. It is desirable to clarify incentives.

[Another embodiment]
(1) In the above embodiment, in order to detect the operating state of whether or not the gas using device A is operating by the operating state detecting means 22 in which the controller CO functions, the gas using device A via the home network. The controller CO is configured to send a signal capable of recognizing operation start or operation stop. However, a sensor for detecting the supply of power in the power line to which the gas utilization device A is connected is provided. Another configuration may be adopted, such as a configuration in which the controller is sent to the controller CO side through a home network or a power line.

(2) In the above embodiment, the controller CO is provided with both the absence state detecting means 23 and the lighting-off state detecting means 24 as the living state detecting means 25, but separately as the living state detecting means 25, Only one of the presence / absence state detection means 23 and the lighting / light-off state detection means 24 is provided, or the living state detection means 25 for detecting a living state different from the presence / absence state and the lighting / light-off state is provided. Alternatively, the supply amount output unit 26 may output the measurement result of the measurement unit 21 in association with the detection result of the living state detection unit 25.

(3) In the above embodiment, the presence / absence state detection means 23 is configured to detect the presence / absence state of a person by receiving an out / return signal from the security switch SSW via the home network. Another configuration may be adopted, such as a configuration in which a human body sensor for detecting a human body is provided in a consumer and the presence / absence of a person is detected using the detection result of the human body sensor.
Furthermore, the presence / absence state detection means 23 is configured to detect the presence / absence state of the person in the consumer, but separately detects the presence / absence state of the person in the space where the gas utilization device A is used. You may comprise.

(4) In the above embodiment, the center server CS communicates with the controller CO via the communication network NE, thereby acquiring information relating to the gas supply amount measured by the measuring means 21 from the controller CO side. However, the center server CS may be configured to acquire the information from the controller CO side without performing communication with the controller CO.
That is, for example, a meter reader goes to each customer every month, and information on the gas supply amount measured by the measuring means 21 is acquired from the controller CO to the portable terminal, and the acquisition is performed. If the received information is input from the portable terminal to the center server CS, the center server CS can acquire information on the gas supply amount measured by the measuring means 21.

(5) In the above embodiment, the load survey system LS is configured by the gas meter GM, the controller CO, and the center server CS. For example, such a center server CS is omitted, or the controller CO is replaced by the gas meter GM. For example, the hardware configuration of the load survey system LS may be modified as appropriate.

(6) In the above embodiment, the supply amount output means 26 is the gas supply amount measured by the measurement means 21 in the specific period specified by the detection result of the driving state detection means 22 and the detection result of the living state detection means 25. The measurement result of the measurement means 21 is output in association with the detection result of the driving state detection means 22 and the detection result of the living state detection means 25. You may employ | adopt the supply amount output means 26 of a form.
That is, the supply amount output means 26 includes the measurement result (gas supply amount) of the measurement means 21, the detection result (operation state) of the driving state detection means 22, and the detection result (absence state, lighting) of the living state detection means 25. Each state) is acquired continuously or at predetermined intervals, and the respective detection results acquired at the same time can be collectively output. Moreover, if each detection result acquired continuously or at predetermined intervals is configured to be stored in the storage unit 27 once in association with the time, the detection result of the driving state detection means 22 and the living state are stored from the storage unit 27. It is possible to extract the gas supply amount measured by the measuring unit 21 in the specific period specified by the detection result of the detecting unit 25.

  In addition, the supply amount output means 26 displays the calendar information for recognizing the date, day of the week, season, etc. in addition to the operating state of the gas utilization device A and the living state of the consumer, the outside temperature and humidity at the location of the consumer, etc. If the recognizable environmental information is also configured to be output in association with the measurement result (gas supply amount) of the measuring means 21, the measuring means 21 measures it in a specific period specified by such calendar information and environmental information. The amount of gas supplied can be recognized.

  The load survey system according to the present invention provides a utility supply amount to a consumer during operation of utility-utilizing equipment with a simple and rational configuration in order to perform highly accurate analysis and prediction of the utility supply amount to the consumer. Can be effectively used as a road survey system capable of outputting the utility supply amount to consumers.

Schematic showing the state of the consumer with the load survey system installed Schematic configuration diagram of the road survey system

Explanation of symbols

21: Measuring means 22: Driving state detecting means 23: Absence state detecting means 24: Light on / off state detecting means 25: Living state detecting means 26: Supply amount output means 31: Charge calculation means A: Gas utilization equipment (utility utilization equipment) )
LSW: Lighting switch SSW: Security switch GM: Gas meter CO: Controller CS: Center server LS: Load survey system

Claims (4)

Measuring means for measuring the utility supply amount to the consumer, operating state detecting means for detecting the operating state of the utility using device that uses the utility in the consumer, and the measurement result of the measuring means of the operating state detecting means A load survey system comprising supply amount output means for outputting in association with a detection result,
Comprising a living state detecting means for detecting a living state in the consumer;
The load survey system, wherein the supply amount output unit is configured to output the measurement result of the measurement unit in association with the detection result of the driving state detection unit and the detection result of the living state detection unit.   The road survey system according to claim 1, further comprising a presence / absence state detection unit that detects, as the living state, a presence / absence state of a person in at least a usage space of the utility using device as the living state detection unit.   The load according to claim 1 or 2, further comprising: a lighting state detection unit that detects, as the living state, a lighting state of a lighting device in at least a usage space of the utility using device as the living state detection unit. Survey system.   A utility fee to be charged to the consumer is calculated from the utility supply amount measured by the measurement means, and the utility use device output by the supply amount output means is operated in a specific life state. The load survey system according to any one of claims 1 to 3, further comprising fee calculation means for determining a discount fee to be applied to the utility fee based on the utility supply amount.

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