JP2012156119A - Power supply tap with current detection reporting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To resolve such problems that, since a remote reporting device utilizing a home electric appliance, such as an electric pot, uses a specific dedicated electric appliance incorporating a current detection circuit and a wireless communication device for data communication, an existing home electric appliance cannot be utilized and there is a need to newly purchase the dedicated electric appliance, and that, when a plurality of home electric appliances are intended to be reporting targets, there is a need to newly purchase respective dedicated electric appliances.SOLUTION: A power supply tap is attached between a home electric appliance or an electric device to be a reporting target and a power supply socket, and has a wireless reporting device measuring a load current of the reporting target and transmitting detection information. Such the power supply tap eliminates the need for modification on the electric appliance side and construction of special connection wiring. Thus, all existing home electric appliances can be utilized as they are. In addition, due to a power supply tap having a plurality of sockets, a plurality of electric appliances can be utilized simultaneously, and individual notification of respective detection information by electronic mails can be performed.

Description

  This invention is a television, electric kettle, electric rice cooker, air conditioner, electric shower type for daily use as a means of informing a third party that an elderly person living alone in a remote area is spending his daily life safely. The present invention relates to a power strip equipped with a current detection notification device that can automatically notify the registration status of household appliances such as toilets and toilets such as family members and local welfare officers by e-mail.

  Conventional remote notification devices using home appliances such as electric pots are limited to specific electrical appliances with built-in current detection circuits and wireless communication devices for data communication. It was not possible to use it, and it was necessary to purchase a dedicated electrical appliance. In addition, in order to report a plurality of home appliances, there is a difficulty in purchasing a dedicated appliance for each. Moreover, the dedicated electric appliances and electric appliances marketed for this purpose are limited to a very limited number of products such as electric pots, and were dissatisfied with the reporting target. Further, a system that combines a power strip, a current measuring device or a power sensor, a detection processing unit, and a single device such as a remote notification device has troublesome installation and connection.

  This invention has a built-in wireless communication device that is installed between a household appliance or electrical appliance (generally referred to as an electrical product hereinafter) to be notified and a power outlet, measures the load current, and transmits a detection signal. The purpose of the power supply tap is to eliminate the need for remodeling and special connection wiring work on the electrical product to be reported, to solve the above problems, and to use all existing electrical products as they are. Moreover, it aims at being able to make a plurality of electric products into a report object.

  It is another object of the present invention to avoid erroneous recognition and erroneous notification due to a small amount of load current such as standby power of an electric product. It is another object of the invention to automatically notify detection information of a plurality of electrical products individually to a registration destination.

  Claim 1 of the present invention that solves the above problem is a power strip that is located between an electrical product to be reported and a power outlet, and that has a built-in wireless communication device that measures a load current that flows during use and transmits a detection signal. Therefore, there is no need for modification on the side of the electrical product to be reported, and it can be easily installed and connected regardless of the type of electrical product.

  A second aspect of the present invention is characterized in that detection information of a plurality of electrical products connected to the outlet can be identified by a current measuring device provided for each of the plurality of female outlets.

  According to claim 3 of the present invention, by adding a load current threshold value (branch point) setting circuit to the current detection processing circuit, it is possible to reduce the power required for the quick start standby of the television and the heat retention power of the electric kettle or electric rice cooker. When the load current is measured, the detection signal is not transmitted, thereby preventing erroneous recognition and erroneous notification and avoiding unnecessary notification. Also, as seen in electric rice cookers and air conditioners, it is not necessary to set a threshold value different from the above for outlets that connect electrical products such as heaters and compressors that repeatedly turn on and off during operation. It is characterized by avoiding reports.

  Claim 4 of the present invention is characterized in that detection information can be automatically notified by e-mail for each of a plurality of electrical products to be notified by a built-in multi-channel data communication dedicated wireless communication device.

  The power strip with a current detection notification device according to the present invention has the above-described functions and has the following effects.

  (1) Installation and connection can be completed simply by plugging the power cord of the electrical product to be reported in the same way as a general-purpose multi-port branch outlet.

  (2) It is possible to simplify the operation information of the electrical product to be reported to the minimum necessary power on and power off, and avoid unnecessary reporting.

  (3) The same number of electrical products as the female outlets provided can be used simultaneously for reporting.

  (4) A remote family member or a local welfare committee member can always check the operation status of the electrical products in the elderly living alone and confirm safety.

System diagram of a notification system when the power strip with a current detection notification device of the present invention is applied to a home appliance Front view of power strip with current detection alarm with front cover removed Side view of the power strip with current detection alarm with the side cover removed

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  In FIG. 1, 1 is a power tap with a current detection notification device, 2 is a female outlet, 5 is a wireless communication device, 6 is a transmission antenna cord, 7 is a power cord, 8 is a mobile terminal (cell phone), 9 is a personal computer ( PC) and 10 are household electrical products, and is a system diagram of the notification system when the household electrical product 10 is connected to the female outlet 2. It is possible to automatically notify the mobile phone 8 or the personal computer 9 by electronic mail via the built-in wireless communication device 5 by measuring the current flowing when the home appliance 10 is used and using the detection signal as notification information. In addition, up to four home electrical appliances 10 connected to the female outlet 2 can be identified, and each detection information can be notified individually.

  2 is a front view of a power strip with a current detection notification device, and FIG. 3 is a side view thereof. In addition to the female outlet 2, a current measuring device 3, a detection processing circuit 4, a threshold value setting circuit, a self-power supply circuit, and A wireless communication device 5 dedicated to data communication is housed in a single sealed container. The connection can be completed simply by inserting the male plug of the power cord of the household electrical appliance 10 to be notified into the female outlet 2. In addition, when a load current exceeding the threshold value is detected due to the addition of a threshold value setting circuit and when the load current detected at or above the threshold value is subsequently below the threshold value, the detection information is transmitted to the minimum necessary. Can be simplified.

  Hereinafter, embodiments will be described with reference to the drawings.

  2 and 3, four female outlets 2, four current measuring devices 3, detection processing circuit 4, threshold value setting circuit, self-power supply circuit, and wireless communication device 5 dedicated to data communication are 250 mm long. In this case, the transmitter antenna cord 6 and the power cord 7 are provided in a sealed container having a width of 220 mm and a depth of 50 mm. Examples of the current measuring device 3 include a non-contact type penetrating current sensor.

  The load current (A) at the time of operation of a typical household electrical product used on a daily basis varies depending on the manufacturer and model grade, but the actual measurement average value is generally below.

  In the case of a 40-inch LED liquid crystal television (nominal rated power consumption 140 W), the viewing time is 0.75 A and in quick start standby 0.17 A. In the case of a 20-inch liquid crystal television (nominal rated power consumption 80 W), viewing is 0.43 A. The quick start standby time is 0.11 A, and the standby time when the power supply is connected is 0.001 A or less. In the case of an electric pot for 2L (nominal rated power consumption 900W), it is 6.4A at the time of operation, and 0.18A at the time of the heat insulation function, and in the case of a 5.5-cooked electric rice cooker (nominal rated power consumption 1200W), it is at the time of operation 7 .5A, 0.18A at the time of the heat retention function, and in the case of a heat pump type air conditioning air conditioner for 6 tatami mats (nominal rated power consumption 1300W), 9.0A at the cooling full load, 13.0A at the full heating load, 0 at the standby time 0.03A. Moreover, in the case of said electric rice cooker, it heats up repeating 4.8A and 0.06A for about 15 minutes after starting, and reaches 7.5A. In the case of an air conditioner, the frequency varies depending on the set temperature, but the compressor is frequently turned on and off repeatedly, and the minimum current value at that time reaches 0.05A.

  Among the above-mentioned household electric appliances, the threshold value is set to 0.30A as a branch point of the detection process as a current value that exceeds the current value during the quick start standby and the heat insulation function and falls below the current value during operation. . Thereby, when the detected current exceeds 0.30 A, a power ON detection signal is transmitted, and when the current drops below 0.30 A, a power OFF detection signal is transmitted. Moreover, the threshold value of the detection process is set to 0.04 A in order to achieve the purpose of an outlet that connects an electric product with a large current fluctuation during operation like the electric rice cooker and the air conditioner.

  In FIG. 2 and FIG. 3, the built-in wireless communication device 5 may be a NTT DOCOMO FOMA remote notification device. The contents of the e-mail notification by this are the following information for each outlet, in addition to the date, day of the week, and time of occurrence of the detection signal. For example, if one of the outlets is registered as a name and connected to a TV, the following occurs.

  (B) The TV was turned on.

  (B) The TV was switched off.

  (C) The power tap has been turned off. Or a power outage.

  (D) The power of the power strip has been restored.

  (E) I didn't detect it today. This notification is automatically sent once a day.

  By these reports, it is possible to grasp the operating status and power outage status of the electrical products to be reported.

  Although the third embodiment has been described above, the present invention can take the following embodiments.

  (1) As the current measuring instrument, a current measuring instrument based on a voltage difference measurement using a shunt resistor, a power sensor that measures power consumption proportional to the current and a correlation can be adopted.

  (2) The number of outlets is valid from 2 to 8, and need not be 4.

  (3) The threshold value of the detection current is effective in the range of 0.03 A to 0.40 A, and can be arbitrarily set for each outlet.

  (4) The size of the sealed container for housing the wireless communication device or the like need not be the above-described dimensions.

  (5) The material of the sealed container may be any type such as plastic or metal.

  (6) The text of the e-mail notification by the remote notification device can be freely changed.

  (7) As the remote notification device, a mail notification device capable of notifying via the Internet by LAN cable connection can be adopted.

DESCRIPTION OF SYMBOLS 1 Power supply tap with current detection reporting device 2 Female type outlet 3 Current measuring device 4 Detection processing circuit 5 Wireless communication device 6 Transmitting antenna cord 7 Power cord 8 Mobile terminal (cell phone)
9 PC
10 Home appliances

Claims (4)

  A power strip used between a home appliance or electrical appliance and a power outlet, in addition to a plurality of female outlets, a current measuring instrument that measures the load current that flows during use, a detection processing circuit, a self-power supply circuit, and A power strip with a current detection notification device, characterized in that a single container is equipped with a wireless communication device that transmits a detection signal.   The power strip with a current detection notification device according to claim 1, wherein a current measuring device is provided for each of the plurality of female outlets.   2. A power strip with a current detection notification device according to claim 1, wherein a load current threshold value setting circuit is added to each of the plurality of female outlets.   The power strip with a current detection reporter according to claim 1, further comprising a multi-channel data communication dedicated wireless communication device capable of transmitting detection information for each of the plurality of female outlets.

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