JP4169338B2 - Alarm system using watt-hour meter and watt-hour meter - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an alarm system using an watt-hour meter and the watt-hour meter, and more particularly to an alarm system and an watt-hour meter using an watt-hour meter that outputs an alarm from a change in the measurement state of the electric energy.
[0002]
[Prior art]
The usage state of infrastructure equipment such as a watt-hour meter, a gas meter, and a water meter represents a consumption pattern of equipment customers, that is, a life pattern. In recent years, it has been known that these facilities can be used as a disaster or crime prevention system by providing new measurement sensors such as vibrations in these facilities.
[0003]
For example, it is possible to know the presence or absence of a resident from the measured values of a gas meter and a water meter, so that it can be used for services such as safety confirmation and patrol monitoring for crime prevention. In addition, it is known that a vibration sensor for detecting an earthquake is attached to a water meter or the like, and abnormal vibration is detected as disaster information and used for disaster countermeasures (Patent Document 1).
[0004]
[Patent Document 1]
JP-A-2002-372442 [0005]
[Problems to be solved by the invention]
The life pattern can be known from the metering state of the electricity meter as well as the gas meter and water meter. These meters need to be installed in a place where the amount being weighed is clearly displayed and easy to check, but it is also possible for third parties other than the power supply source and the consumer to see this display. Therefore, it is possible to know long-term absence.
[0006]
For this reason, improvement of the display method has been required for such infrastructure facilities for the purpose of crime prevention.
[0007]
However, although it is known that conventional equipment such as a watt-hour meter can be used for safety confirmation etc., there is no known technique for preventing crimes or taking measures against disasters when these equipment consumers are absent.
[0008]
The present invention has been made to solve the above-mentioned problems, and can notify an abnormal value of the measured electric energy used when absent, and also switches the display value of the watt-hour meter to the simulated electric energy when absent. It is an object to provide an alarm system using a watt-hour meter that can be displayed and a watt-hour meter.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, an alarm system using a watt-hour meter of the present invention comprises a host computer provided at a power supply source, a watt-hour meter connected via a network, and a terminal connected to the network. The terminal notifies the host computer of the reservation period and the reserved power consumption during that period by the reservation means, and the reservation period and reservation use notified from the host computer to the watt-hour meter. The watt-hour meter is notified by the setting means, and the watt-hour meter selects and controls a display mode for displaying the metering state of the watt-hour meter by the control means in accordance with the reservation period notified from the setting means. When the amount of power that is greater than or equal to the reserved power consumption is measured during the reservation period, an alarm is set on the host computer by an alarm setting means. Outputs, the host computer, upon receiving the alarm output, characterized by being adapted to send an alarm to the terminal.
[0010]
Therefore, according to the present invention, the reservation use power amount in the absence period is notified in advance, and the reservation use power amount display during the absence period is displayed as the simulated power amount of the normal use power amount during the absence period. An alarm system that uses a watt-hour meter that can prevent crimes and disasters when not in use, as it has been switched to display and detects the occurrence of abnormal measurement values during this reservation period and outputs an alarm. Can provide.
[0011]
According to a third aspect of the present invention, power calculating means for measuring the amount of power used, setting means for setting the reservation period and the reserved power consumption for the reservation period via the communication means, and the previous period set by the setting means A storage unit for storing a reservation period and the reserved use power amount, a simulated power amount for displaying the reservation period, and a normal use power amount measured by the power calculation unit;
A display unit for displaying the used electric energy or the simulated electric energy;
Control means for selectively controlling the amount of power to be displayed on the display unit;
And an alarm output means for outputting an alarm when there is an output of the power calculation means exceeding the reserved power consumption during the reservation period.
[0012]
Therefore, according to the present invention, the reserved power consumption in the absence period or the like is set in advance, and the display of the reserved power consumption in the absence period is displayed as the simulated power energy simulating the normal power consumption in the current period. In addition to detecting the occurrence of an abnormal measurement value during this reservation period and outputting an alarm, it is possible to provide a watt-hour meter that can prevent crime in the absence and prevent disasters. I can do it.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments according to the present invention will be described below with reference to FIGS. The configuration of the embodiment of the present invention will be described with reference to FIG. Reference numeral 1 denotes a watt hour meter that inputs supply power through the power line 2 and displays a measured value of the amount of power used on the display unit 14.
[0014]
Reference numeral 3 denotes a host computer located in a power supply company or the like, which is configured to be able to communicate with the consumer's watt-hour meter 1 and the terminal 5 via the network 4.
[0015]
A display mode, which will be described in detail later, is selected for the display unit 14 of the watt-hour meter 1, but the display content can be read by the display monitor remote controller 1a.
[0016]
Next, the detailed configuration of the watt-hour meter 1 will be described with reference to FIG. FIG. 2 shows a watt-hour meter 1 of a three-phase AC power source composed of an R phase, an S phase, and a T phase. Reference numeral 11 denotes a current / voltage conversion circuit, which is a digital signal with a predetermined resolution for measuring the amount of power used. The Reference numeral 12 denotes a power calculation circuit that performs calculation at a predetermined calculation cycle from the digital signal using an arithmetic expression based on a predetermined definition.
[0017]
The output of the power calculation circuit 12 is stored in the storage circuit 13 at a predetermined measurement cycle. The stored measurement value is displayed on the display unit 14 at a predetermined output cycle. These controls are performed by a CPU (Central Processing Unit) 15. Further, the CPU 15 is connected to the communication interface 17, and also performs setting and display control on the watt hour meter 1 by communication signals from the wireless antenna 16 and the network 4.
[0018]
Next, the types of display modes displayed on the display unit 14 will be described. In the display mode, the first display mode that displays the power consumption during the normal period as it is, and the low power consumption during periods such as absence are registered in advance as the reservation period and the reserved power consumption at the power supply source. In addition, in this reservation period, there is a second display mode for displaying a simulated power amount that simulates the amount of power used in the normal period.
[0019]
Next, the processing operation of the alarm system using the watt-hour meter 1 configured as described above will be described with reference to FIGS. First, an outline of the alarm setting for the watt-hour meter 1 and the display switching operation of the display unit 14 will be described with reference to FIG.
[0020]
In the figure, a solid line a from January to July indicates a normal power consumption state. In August, since the plan for reducing the amount of power used by consumers is planned to be greatly reduced, the host computer 3 is notified to the host computer 3 that the predetermined reserved power consumption P or less is set by a predetermined date before August. To make a reservation in advance via the network 4.
[0021]
Also, when there is this reservation input, the host computer 3 notifies the watt-hour meter 1 that the display of the reservation month is switched to the simulated power amount, and the display of the watt-hour meter 1 indicates the previous month as shown by the broken line b. The same amount of power used is displayed in a simulated manner.
[0022]
When a metric value that is equal to or greater than the reserved reserved power consumption P is measured by the watt-hour meter 1, the host computer 3 that is the power supply source is notified via the network 4, and the host computer 3 notifies the terminal 5. Output an alarm. Since the measured value of the reserved power consumption P or more is considered to occur, for example, when there is a leakage in some part of the power system or when there is power used for some reason, An abnormal value is determined from the measured value of 1.
[0023]
Next, details of this setting, display switching, and alarm processing will be described with reference to FIG. FIG. 4A shows a flowchart of the setting processing operation, and FIG. 4B shows a flowchart of display and alarm processing in the watt-hour meter 1.
[0024]
In FIG. 5A, the terminal 5 performs a reservation process S1 for the amount of power used for the host computer 3. At this time, the host computer 3 is notified of the customer authentication number, the reservation period, and the reserved power consumption P during that period as reservation information.
[0025]
When the host computer 3 receives this reservation information, a reservation reception process A1 stored in a customer reservation file of the host computer 3 (not shown) is executed.
[0026]
Next, based on the received reservation information, the host computer 3 transmits predetermined alarm setting information set based on the reservation information to the electricity meter 1 of the consumer (alarm setting process S2).
[0027]
Then, the watt hour meter 1 stores the alarm setting information in the storage circuit 13 of the watt hour meter 1 via the network 4, the communication interface 17 and the CPU 15 (alarm reception process A2).
[0028]
Next, the display switching process and the alarm process in the watt hour meter 1 will be described with reference to FIG. This processing program is built in the CPU 15 and executed.
[0029]
First, when the host computer 3 performs the reservation acceptance process A1 and the alarm setting process S2, and the watt-hour meter 1 completes the alarm reception process A2, it is determined whether or not the calculation of the electric energy to be measured is a reserved month. Determine (S01). If it is not the reserved month, the normal watt-hour meter 1 performs normal power calculation and continues the normal measurement / display processing operation (S05) in which the power consumption is displayed on the display unit 14.
[0030]
When the time changes in the reservation month, the CPU 15 of the watt-hour meter 1 reads out the simulated power amount built in the storage circuit 13 and transmits this value to the display unit 14 (S02). Further, during this reservation period, an abnormal metric value determination (S03) is performed to determine whether or not the metric value of the used electric energy is equal to or more than the reserved reserved electric energy, and if an abnormal value is determined, an alarm output is output to the network 4. To the host computer 3 (S04).
[0031]
When the host computer 3 receives this warning, it compares it with the customer reservation file, confirms that the transmitted warning is data from the electricity meter 1 of the reserved customer, and automatically issues a warning to the terminal 5. Send.
[0032]
In addition, the display monitor remote controller 1a of the watt hour meter 1 can communicate bidirectionally via the wireless antenna 16 of the watt hour meter 1 and reads the data on the display screen displayed on the display unit 14 on the display monitor remote controller 1a. be able to. In this case, the watt-hour meter 1 is provided with an authentication function that enables authentication of the display monitor remote controller 1a with an authentication number or the like, for example, so that only authorized service personnel can read it.
[0033]
Therefore, according to the present embodiment, in the case where the consumer is absent or the like, the alarm service can be provided from the abnormal value of the measured value of the watt hour meter 1, so that it accompanies the abnormal value of the power system. Disaster countermeasures can be quickly implemented. Furthermore, from the display of the measurement value on the display unit 14, there is no possibility that a third party will read that there is no absence, and it can also be used as a security alarm when there is no absence.
[0034]
In addition, this invention is not limited to said embodiment, It can also change in the range which does not deviate from the main point. For example, in the present embodiment, an alarm system using a watt-hour meter is used, but an alarm system using a life infrastructure system such as a gas meter or a water meter can be modified.
[0035]
【The invention's effect】
As described above, according to the present invention, the amount of power used in the absence or the like is reserved in advance with the power supply source, and the display of the amount of power used during this reservation period is displayed with the simulated data of the normal power consumption. The system detects the abnormal measurement value during this reservation period and automatically notifies the customer of the alarm, so the alarm system uses a watt-hour meter that can prevent crime and prevent disasters when not in use. And provide a watt hour meter.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram of a configuration according to an embodiment of the present invention.
FIG. 2 is a configuration diagram of a watt-hour meter according to the present invention.
FIG. 3 is a diagram for explaining an alarm by a watt-hour meter.
FIG. 4 is a flowchart of display and alarm processing for crime prevention of the watt-hour meter.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Electricity meter 1a Display monitor remote control 2 Power line 3 Host computer 4 Network 5 Terminal 11 Current / voltage conversion circuit 12 Power calculation part 13 Storage circuit 14 Display part 15 CPU
16 Wireless antenna 17 Communication interface

Claims (5)

A watt-hour meter connected via a network to a host computer provided at a power supply source;
A terminal connected to the network,
Reservation notification from the terminal to the host computer by the reservation means of the reservation period and the reserved power consumption during that period,
Notifying the watt-hour meter by the setting means of the reservation period and reserved power consumption notified from the host computer,
The watt hour meter selects and controls a display mode for displaying the metering state of the watt hour meter by the control means according to the reservation period notified from the setting means,
The watt-hour meter outputs an alarm to the host computer by an alarm setting means when the amount of power equal to or greater than the reserved usage power amount is measured in the reservation period,
An alarm system using a watt-hour meter, wherein the host computer transmits an alarm to the terminal when receiving the alarm output. The watt-hour meter display mode includes a first display mode for displaying a measured value of power consumption other than the previous period reservation period and a second display mode for displaying a simulated electric energy for the previous period reservation period,
2. The electric energy according to claim 1, wherein the control unit selects the first display mode except for the reservation period and selectively displays the second display mode during the reservation period. Meter alarm system. Power calculation means for measuring the amount of power used;
A setting means for setting the reservation period and the reserved power consumption for the reservation period via the communication means;
Storage means for storing the previous period reservation period and the reserved used electric energy set by the setting means, the simulated electric energy for displaying the reservation period, and the normal electric energy measured by the power calculating means;
A display unit for displaying the used electric energy or the simulated electric energy;
Control means for selectively controlling the amount of power to be displayed on the display unit;
An watt-hour meter comprising: an alarm output means for outputting an alarm when there is an output of the power calculation means that is greater than or equal to the reserved power consumption during the reservation period. The control means selects the power amount to be displayed on the display unit from the storage means, displays the used power amount outside the reservation period, and displays the simulated power amount during the reservation period. The watt-hour meter according to claim 3 characterized by things. The amount of electric power displayed on the display unit is selected and controlled remotely via the communication unit by a monitor including a communication unit including security information such as an ID number. Watt hour meter.

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