JP2011249009A - Electric outlet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase safety by controlling electric power supply from an electric outlet to a plug based upon a voltage and a current needed for use of an electric apparatus connected to the electric outlet.SOLUTION: The electric outlet includes an input portion which inputs supplied electric power, a plug blade reception portion which supplies the input electric power to a plug of a connected electric apparatus, a bar code read portion which emits read light to a bar code provided to the plug and receives reflected light from the bar code to read code information including information, stored in the bar code, on a requested voltage and current of electric power that the electric apparatus uses, and an electric power supply control portion which determines whether electric power is supplied to the electric apparatus and outputs the input electric power to the plug blade reception portion. The electric power supply control portion supplies the electric power to the plug when the requested voltage read by the bar code read portion satisfies predetermined suppliable voltage requirements and the requested current read by the bar code read portion satisfies predetermined suppliable current requirements.

Description

  The present invention relates to an outlet for supplying electric power to an electric device, and to an outlet capable of controlling the supplied electric power.

Conventionally, when an electric device is used in a general home, the plug of the electric device is inserted into a plug insertion port (hereinafter referred to as an outlet) provided on a wall surface of a house, and commercial power (for example, AC 100V) Was getting power from.
In the case of an AC commercial power supply, AC power of a predetermined AC voltage is supplied from an outlet, and therefore, an electric device connected to the outlet has a configuration for converting the supplied AC voltage to a voltage used for operation. is doing.

Further, a DC outlet for supplying DC power from the power supply source has been developed using a solar battery or a secondary battery as a power supply source. The DC outlet is connected to a DC drive type electric device that operates by receiving direct supply of DC power.
As this DC outlet, a DC-DC converter having a built-in DC voltage and supplying a constant DC voltage has been proposed (see Patent Document 1).
Connected to the DC outlet is a DC electric device that can operate with a supplied DC voltage.

In addition, since there are devices that operate at different DC voltages as the connected DC electric devices, the DC input voltage that is to be supplied to the device by obtaining the appropriate voltage value information of the device from the DC electric device is There has been proposed a DC outlet that displays whether or not the voltage is different from the applicable voltage of the device (see Patent Document 2).
Here, an RF tag that stores compliant voltage value information in a non-contact readable state is provided on the plug on the DC electrical equipment side, and the voltage value information stored in the RF tag is non-contacted on the DC outlet side. A configuration is described in which a reader for reading is provided to acquire suitable voltage value information.
Further, in this Patent Document 2, when the DC input voltage and the adaptable voltage are different, the DC voltage output from the outlet is output by the built-in DC-DC converter so that the adaptable voltage value is obtained (DC voltage). ) Is described.

JP 2009-146827 A JP 2009-151947 A

However, in the case of the above-described DC outlet, it is possible to supply a constant DC voltage suitable for the electric equipment to be connected, but the DC power capability (power capacity) that can be supplied by the power supply source is not considered. .
For example, even if the DC voltage output from a DC outlet matches the operating voltage of the connected electrical device, if the DC current (receiving current capacity) required for the operation of the electrical device is very large, If you continue to use electrical equipment, the power supply capacity on the supply source side may be exceeded during use.
In other words, if the capacity of power that can be supplied during use is exceeded, the DC voltage supplied from the outlet will decrease, causing the electrical device to stop during use, or the malfunction of normal operation May occur.

In this way, when an electrical device that has been operating normally until now stops during use, the user is likely to think that the electrical device has failed because it stopped without a power failure, and the power supply You may not realize that you have used beyond your capabilities.
In addition, even if the user may be concerned about the operating voltage of the electrical equipment to be used, the possibility of using the equipment in consideration of the power receiving current capacity of the electrical equipment and the capacity of the DC power supply source It is considered low.
Therefore, it is desirable that after the electrical device is connected to the outlet and started to be used, the electrical device can be operated safely and normally without causing any trouble such as the electrical device being stopped halfway. .

  Therefore, the present invention has been made in consideration of the above-described circumstances, such as acquiring various information related to electrical equipment, and making sudden stops and normal operations impossible during the use of electrical equipment. It is an object of the present invention to provide an outlet capable of preventing problems and ensuring safe use.

  The present invention provides an input unit that inputs supplied power, a plug blade receiving unit that supplies the input power to a plug of an electric device to be connected, and emits reading light to a barcode provided in the plug. A barcode reading unit that receives the reflected light from the barcode, reads the code information that is stored in the barcode and includes information on the required voltage and current of the electric power used by the electrical device, and the electrical device. A power supply control unit that determines whether or not power supply is possible and outputs the input power to the plug blade receiving unit, wherein the power supply control unit has a required voltage read by the barcode reading unit, The power supply from the plug blade receiving portion to the plug is performed when a predetermined supplyable voltage condition is satisfied and a required current read by the barcode reading unit satisfies a predetermined supplyable current condition. It is intended to provide that outlet.

According to this, when the required voltage and required current of the electric power used for the operation of the electrical equipment connected to the outlet satisfy the supplyable voltage condition and the supplyable current condition of the power input to the outlet, Since power is supplied to the plug of the electrical device, power is supplied only to the electrical device that is allowed to operate normally.
Conversely, electrical equipment that does not satisfy the above conditions, especially electrical equipment that cannot be operated even when connected to the outlet, or that are necessary for normal operation of the electrical equipment even if it can be activated. Electrical equipment that cannot continuously supply current can be eliminated before actual use.
Therefore, in the case of power supply from a DC power supply, it is possible to prevent a problem that it becomes impossible to use suddenly due to a supply voltage drop during use, and power supply control with higher safety can be performed.

  Also, the code information read by the bar code reading unit, the voltage determination information for determining whether or not the required voltage included in the code information is a supplyable voltage, and the required current included in the code information can be supplied. A storage unit that stores current determination information for determining whether the current is current, the power supply control unit compares the read request voltage with the voltage determination information, and the read request An outlet characterized by comparing the current with the current determination information and supplying power from the plug blade receiving portion to the plug when the supplyable voltage condition and the supplyable current condition are satisfied. It is to provide.

Here, the current determination information is a preset upper limit value of the suppliable current, and the suppliable current condition is that the read request current is not more than the upper limit value of the suppliable current. To do.
Moreover, when either one of the supplyable voltage condition and the supplyable current condition is not satisfied, the power supply control unit does not supply power from the plug blade receiving unit to the plug.
According to this, when the above conditions are not satisfied, power supply to the electric device itself is not performed. For example, after starting the operation, there is a problem that the electric device is stopped due to a supply voltage drop or the like. If there is a possibility of exiting, the electrical device can be prevented from being activated before use.

The barcode reading unit includes a light emitting unit that emits reading light to the barcode of the plug, and a light receiving unit that receives reflected light from the barcode, and the light emitting unit and the light receiving unit are plugged in. Is connected to the plug blade receiving portion, is opposed to the barcode of the plug, and is disposed at a position where the reflected light from the barcode enters the light receiving portion.
According to this, power supply control is reliably performed only when the user intends to use the electrical device and inserts the plug into the outlet.

In addition, when power is supplied from the plug blade receiving portion to the plug, a notification portion for notifying that power is being supplied is further provided.
In addition, when power is not supplied from the plug blade receiving portion to the plug, a notification portion is further provided for notifying that power supply is not performed because either the supplyable voltage condition or the supplyable current condition is not satisfied. It is characterized by that.
Here, the notification unit includes any one or both of a display unit for visually displaying the notification content and an audio output unit for audibly informing the notification content.
According to this, it is possible to easily inform the user that power supply is performed or not, and in particular, the user cannot use the electric device because it is not a failure of the electric device, It can be easily known that the power is not supplied based on the power supply control.

Further, the power supply control unit is based on the required voltage read by the barcode reading unit,
A voltage conversion unit that converts a supply voltage for power input from the input unit into the required voltage, and a power output unit that outputs power having the converted supply voltage from the plug blade receiving unit. Features.

Further, when the code information includes model information of the electrical device, the storage unit stores model determination information including information for identifying the model of the electrical device and energization time set for each model, When the read model information matches the model identification information of the model determination information, the power supply control unit starts supplying power to the plug and then a time corresponding to the energization time of the model determination information has elapsed. In addition, the power supply to the plug is stopped.
According to this, appropriate power supply control such as safe and power saving can be performed for each model of the electric equipment.

When the code information includes power supply time information that allows continuous operation of the electrical device, the power supply control unit, when starting the power supply to the plug, when the time corresponding to the power supply time information has elapsed The power supply to the plug is stopped.
According to this, since the power supply is forcibly stopped by limiting the continuous use time, power supply control with higher safety can be performed.

The code information includes the date of manufacture of the electrical device,
When the storage unit stores elapsed time information for specifying a usable time, and the current date has already passed the time specified by the elapsed time information from the read manufacturing date The power supply control unit does not supply power from the plug blade receiving unit to the plug.
Here, as the elapsed time information, information specifying the number of years can be used.
According to this, it is possible to perform power supply control with high safety for an old electric device having a high possibility of malfunction.

When the code information includes usage period information for specifying a time limit for permitting the use of the electric device, the power supply control unit has already passed the time limit specified by the use period information. If it is, power is not supplied from the plug blade receiving portion to the plug.
Also in this case, power supply control with high safety can be performed similarly.

  In addition, the outlet of the present invention can be applied to the case where the power input to the input unit is either DC power supplied from a DC power supply or AC power supplied from an AC power supply.

Furthermore, the present invention provides a power feeding system comprising any one of the above-described outlets and a plug provided with the barcode including the code information in advance.
The code information included in the barcode of the plug includes a required voltage that is an operating voltage of the electrical device to which the plug is connected and a required current that is an operating current of the electrical device to which the plug is connected. , Including any one or more of model information of the electrical equipment, power supply time information allowing continuous operation, manufacturing date information of the electrical equipment, and usage period information specifying a time limit permitting use of the electrical equipment It is characterized by that.

  In addition, the power supply control unit does not perform power supply from the plug blade receiving unit to the plug when the required current read by the barcode reading unit exceeds a predetermined upper limit of supplyable current. It is characterized by.

According to the present invention, it is possible to provide an outlet in which power is supplied only to an electric device that operates with a required voltage and a required current that satisfy a predetermined supplyable voltage condition and a supplyable current condition.
Therefore, it is possible to prevent the use of an electric device that operates with a required voltage and a required current that do not satisfy any one of the above conditions, and to perform power supply control with higher safety.

It is a configuration block diagram of an embodiment of the outlet of the present invention. 1 is a configuration block diagram of an embodiment showing a relationship between an outlet and a barcode according to the present invention. 1 is a schematic external view of an embodiment of a plug of the present invention. It is explanatory drawing of the code information of one Example of the barcode of this invention. It is a flowchart of the electric power feeding control process in the outlet socket of this invention. It is a time chart of the electric power feeding control processing performed between the outlet socket and plug of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, this invention is not limited by description of the following examples.
<Configuration of outlet of the present invention>
FIG. 1 is a block diagram showing the configuration of an embodiment of the outlet according to the present invention.
The outlet 1 of the present invention is an interface part that outputs power supplied from a power supply unit 4 such as an alternating current power supply (AC) or a direct current power supply (DC) in the same manner as a conventional outlet. By inserting the plug into the outlet 1, electric power is supplied to the electric device 3 connected to the plug 2.
In the present invention, the power supplied to the electrical device may be AC power supplied from an AC power supply or DC power supplied from a DC power supply.
Moreover, the power supply system of this invention is comprised from the outlet 1 and the plug 2 provided with the barcode which contains predetermined code information beforehand.

As shown in FIG. 1, the outlet 1 mainly includes an input unit 11, a power supply control unit 12, a barcode reading unit 13, a plug blade receiving unit 14, a notification unit 15, and a storage unit 16.
The input unit 11 is a part that inputs power supplied from the power supply unit 4 to an outlet. Like a normal power line, it is composed of two-pole input terminals. For example, in the case of a DC 10V DC power source, one terminal is a + 10V terminal and the other terminal is a ground terminal.
The plug blade receiving part 14 is a part that feeds the input power to the plug of the electric device to be connected, and plugs the plug blade 21 of the plug 2, as in the case of an outlet that has been used in ordinary households. It is a part which has the recessed member of the shape which can do.

The power supply control unit 12 is a part that converts the power input to the input unit 11 and supplies power from the plug blade receiving unit 14 to an external electrical device. Moreover, it is a part which determines the propriety of the electric power feeding to an electric equipment based on the code | cord | chord information of the electric equipment connected to the plug blade receiving part 14. FIG.
In particular, as will be described later, the required voltage read by the barcode reading unit 13 satisfies a predetermined supplyable voltage condition, and the required current read by the barcode reading unit 13 satisfies the predetermined supplyable current condition. This is a portion that feeds power from the plug blade receiving portion 14 to the plug 2 when it is satisfied.
On the other hand, when either one of the supplyable voltage condition and the supplyable current condition is not satisfied, the power supply control unit 12 does not supply power from the plug blade receiving unit 14 to the plug 2.

The power supply control unit 12 mainly includes a power output unit 120, a voltage determination unit 121, a current determination unit 122, a voltage conversion unit 123, and a code information determination unit 124. Details will be described later.
Each of the functional blocks (120 to 124) of the power supply control unit 12 can be realized by hardware. However, the microcomputer mainly includes a CPU, a ROM, a RAM, an I / O controller, a timer, and the like. Can be realized. Further, the function of each functional block is realized by the CPU organically operating the hardware based on the control program stored in the ROM or the like.

The barcode reading unit 13 is a part that reads information stored in advance in the barcode 22 attached to the plug 2 (hereinafter referred to as code information).
The bar code 22 is a linear code conventionally used, and is, for example, a one-dimensional code that represents characters and numbers by arranging line segments having different thicknesses in one direction according to a certain rule.
There are already many standards for barcodes, but barcodes of any standard may be used. Further, a two-dimensional code that can include more information may be used.

The bar code reading unit 13 has a configuration for reading out code information included in the bar code 22 in a non-contact manner by an optical method.
That is, the barcode reading unit 13 includes a light emitting unit 131 that emits reading light for reading code information, and a light receiving unit 132 that detects light reflected from the barcode when the emitted reading light hits the barcode 22. With.
For example, an LED is used as the light emitting unit 131.
As the light receiving unit 132, for example, a CCD or a CMOS is used.
When the light receiving unit 132 receives reflected light from the barcode, it is photoelectrically converted and an electrical signal is output.
By analyzing the electrical signal, code information included in the barcode is detected, and the detected code information is converted into character or numerical information based on a predetermined rule.
Characters and numerical information after the conversion correspond to required voltage, model information, and the like, which will be described later.
The read code information is stored in the storage unit 16 as reception information 160.
In the present invention, the code information includes at least information on the required voltage and required current of the electric power used by the electric device.

The alerting | reporting part 15 is a part which informs the user of the electric equipment 3 to the exterior, especially the electric power feeding state of an electrical outlet.
The notification contents notified by the notification unit 15 include, for example, that power is being supplied at present, that the power supply is in a stopped state, that the electric device to be connected cannot be supplied, and that power supply has been stopped due to a specific cause. In other words, the power supply is not performed because either the power supply possible voltage condition or the power supply possible current condition is not satisfied.
The notification unit 15 includes a display unit 151 such as an LED or LCD for visually displaying these notification contents, and an audio output unit 152 (speaker) for audibly notification.
Both the display unit and the speaker may be provided, or only one of them may be provided.

The storage unit 16 is a part that stores received code information (reception information 160) and information necessary for determination of power supply control.
As the storage unit 16, a semiconductor memory such as a ROM or a RAM is used. Information that changes such as the reception information 160 is stored in a rewritable memory (such as a RAM), and is fixed in advance for determination of power feeding. The set information is stored in a read-only memory (ROM or the like) that cannot be rewritten.

Here, the received information 160 includes, for example, a required voltage 161, a required current 162, model information 163, a power supply time 164, a manufacturing date 165, a usage period 166, and the like. These pieces of information (161 to 166) correspond to code information included in the barcode 22.
The received code information is not limited to these six pieces of information, and some of the six pieces of information may be received, or other newly defined information is received. There may be.

The required voltage 161 means a voltage value used in the electric device 3. For example, in the case of an electric device that operates with a DC voltage of 5 V, this DC voltage value (5 V) is the required voltage. This required voltage 161 is included in the barcode 22 in advance as one piece of code information.
The required current 162 means a current value used during operation of the electric device 3. For example, in the case of an electric device having a maximum current consumption of 0.2 A, the required current is 0.2 A. This required current 162 is also included in the barcode 22 in advance as one piece of code information.
The model information 163 is information for specifying the model of the electrical device connected to the outlet. For example, in addition to the general name (general name) of articles such as irons and refrigerators, the product name, model number, and product number of the manufacturer. Etc. may be used.

The power supply time 164 means, for example, a time that allows continuous operation of the electric device, that is, a time that can be used continuously. For example, in the case of an electric device that generates heat and is dangerous when used for a long time such as an iron, or an electric device that is restricted to be used for a long time such as an oil fan heater, the continuous usable time is set as the power supply time 164. As code information.
The power supply time 164 is used to determine an elapsed time from the start of power supply, and is used to determine whether or not to stop power supply to the plug after a certain time has elapsed.

The date of manufacture 165 is information on the year, month, and day of manufacture of the electrical device. This information is used to determine whether or not a certain period has elapsed since that date, and is used to determine whether power supply is permitted or not.
The use period 166 means, for example, use period information that guarantees the normal operation of an electric device and specifies the time limit for the manufacturer to allow the use of the electric device. Use beyond this period is not allowed by the manufacturer. It means such a use restriction period.
This period of use 166 is used to determine whether power supply is permitted or not.
In addition, the storage unit 16 stores voltage determination information 171, current determination information 172, power supply state information 173, model determination information 174, elapsed year information 175, and the like as information that is fixedly set in advance.

Here, the voltage determination information 171 is a lower limit value (Va) and an upper limit value (Vb) of the voltage that can be supplied from the outlet 1, and the received information about the required voltage 161 is a voltage range that can be supplied by the outlet 1. This is information for determining whether or not it is inside.
For example, if the lower limit value of the voltage determination information 171 is Va = 5 (V), the upper limit value is Vb = 15 (V), and the required voltage 161 (Vx) is 10 (V), Va <Vx < Since it is Vb, it means that a voltage corresponding to the required voltage can be supplied from this outlet, and the electric device 3 operating at the required voltage can be connected to the outlet 1 and used.

The current determination information 172 is a preset upper limit value (Imax) of the suppliable current of the outlet 1, and indicates whether or not the received information on the requested current 162 (Iy) is smaller than the upper limit value (Imax). This is information for determination.
For example, if the value (Imax) of the current determination information 172 is 2 (A) and the required current 162 (Iy) is 1 (A), since Iy <Imax, a current corresponding to the required current is obtained from this outlet. It can be supplied. In this case, power is supplied to the electrical device connected to the outlet.
Conversely, if the received required voltage (Vx) is not within the above-mentioned suppliable voltage range or the required current (Iy) is larger than the above upper limit value (Imax), connect the electrical device to the outlet. Even if power is not supplied.

The power supply status information 173 is information indicating whether or not power is currently being supplied from the outlet.
For example, when the variable D is assigned as the power supply state information 173, a state where power is being supplied or a state where power supply can be permitted is set as D = 1, and a state where power is not supplied or a state where power supply is not possible is set as D = 0. Shall.
That is, it is possible to determine whether power feeding is permitted or not based on the value of the variable D.

The model determination information 174 is information for determining the model of the connected electrical device, and is information that is compared with the received model information 163.
The information 174 includes information for specifying the model of the electric device and information on the energization time set in advance in association with each model. The energization time means a time during which continuous use is permitted after the use of the electric device of the model is started.
For example, as described above, when a time during which continuous use is permitted is set for safety, such as with an iron, the continuous use time (for example, 1 hour) is set as the energization time. Keep it.
There are various types of electrical equipment connected to the outlets, depending on the manufacturer, etc., and the set continuous use time may be different, so the model and energization time are stored as a set. It is preferable.
This model determination information 174 should be set in advance, but since a new model may be added or deleted, it is preferably stored in the RAM and rewritten.

The elapsed year information 175 is information that identifies the number of years that can be used regardless of whether or not it is used after manufacturing, and is information that is compared with the received date of manufacture 165.
In other words, electrical equipment that has passed this number of years after manufacturing should not be used in terms of safety, etc., and if the current date has passed this number of years, do not supply power to the plug. .
This elapsed year information is one of the above-described elapsed time information for specifying the usable time, and is set with the number of years as the specified time, but in addition to this, the month (month), the day (day) ), Hour, or minute may be set.
This information should be set by the manufacturer that guarantees normal use.

In the power supply control unit 12 of FIG. 1, the power output unit 120 is a part that outputs the power having the supply voltage after being converted by the voltage conversion unit from the plug blade receiving unit 14.
The voltage determination unit 121 is a part that determines whether or not the required voltage 161 satisfies a predetermined supplyable voltage condition. That is, in the code information read by the barcode reading unit 13, a portion that determines whether the required voltage 161 is a voltage that can be supplied by comparing the required voltage 161 with the voltage determination information 171 stored in advance. It is. As described above, when the upper limit (Vb) and the lower limit (Va) are set as the voltage determination information 171, when the required voltage 161 (Vx) satisfies the supplyable voltage condition Va ≦ Vx ≦ Vb, the required voltage Is determined to be available.
On the other hand, when the above condition is not satisfied, for example, when the required voltage 161 (Vx) is larger than the upper limit value (Vb), it is determined that the supply is impossible.

The current determination unit 122 is a part that determines whether or not the required current 162 satisfies a predetermined supplyable current condition. That is, it is a part that compares the requested current 162 with the current determination information 172 in the code information read by the barcode reading unit 13 and determines whether the requested current 162 is a current that can be supplied. As described above, when the upper limit value (Imax) is set as the current determination information 172, it is determined that the required current can be supplied when the required current (Iy) satisfies the supplyable current condition Iy ≦ Imax. .
On the other hand, when the above condition is not satisfied, that is, when the required current Iy is larger than the upper limit value (Imax), it is determined that supply is not possible.
In the present invention, since the required voltage 161 and the required current 162 are essential information, the determination processing by the voltage determination unit 121 and the current determination unit 122 is always performed when the plug 2 is inserted into the outlet 1.

The voltage converter 123 is a part that converts the supply voltage for the power input from the power supply unit 4 to the input unit 11 into the required voltage 161 (Vx).
For example, if the voltage supplied to the input unit 11 is direct current (DC) 10V and the required voltage (Vx) is DC 5V, the voltage conversion unit 123 should perform DC-DC conversion and output it. The voltage is converted to DC5V. The power of the converted supply voltage DC5V is output by the power output unit 120 via the plug blade receiving unit 14.

The code information determination unit 124 is a part that mainly determines whether to output power (whether to supply power to the plug) using the code information read by the barcode reading unit 13.
Examples of determination contents include model determination, power supply time determination, manufacturing time determination, and usage period determination.
However, it is not necessary to perform all these determinations, and the determination is not limited to these four determinations. Only one of these four determinations may be performed, or some determinations that are considered necessary may be performed by an electric device.

For example, if the code information read from the bar code 22 is the required voltage 161, the required current 162, and the model information 163, the code information determination unit 124 determines the model.
In the model determination, the model of the electrical device 3 connected to the outlet is determined using the received model information 163 and model determination information 174. Moreover, the start and stop of the electric power feeding to the plug of the electric equipment are controlled according to the determination result.
Specifically, when the model information read by the barcode reading unit matches the information specifying the model in the model determination information, the power supply to the plug is started, and then the model determination information energizes. When the corresponding time has elapsed, the power supply to the plug is stopped.
For example, when “model” = “iron” and “energization time” = “1 hour” are set in advance as the model determination information 174, if the received model information 163 is “iron”, the power supply start time Then, the timer is started and 1 hour (energization time) has elapsed.

If the plug remains inserted after 1 hour has elapsed, the power output unit 120 is configured not to output power. That is, in order to ensure safety in consideration of forgetting to turn off the iron, power supply to the iron is forcibly stopped.
Accordingly, power supply can be stopped at an appropriate time that is assumed in advance, corresponding to the model of the connected electrical device, so that sufficient safety can be ensured.
Further, in order to prevent sudden power supply stoppage during use of the electric equipment and the inability to use it, the notification unit 15 will soon (at a predetermined time before the power supply stop, for example, 5 minutes before the power supply stop scheduled time ( (After 5 minutes) For the safety of the device, the user may be notified (preliminary notice) that the power supply is forcibly stopped. In addition, when the power supply is actually stopped, it is preferable to notify the user by the notification unit 15 that the stop is not a failure or a power failure of the device but has been stopped for safety.

In the power supply time determination, start and stop of power supply are controlled based on the received power supply time 164. That is, after the power supply to the plug is started, the power supply to the plug is stopped when the time corresponding to the power supply time has elapsed.
For example, when the power supply time 164 read as the code information is “30 minutes”, the timer is started from the power supply start time, and the elapse of 30 minutes is counted. In this case, the power supply is forcibly stopped after 30 minutes, regardless of the model of the connected electrical device.
Also in this case, it is preferable to give a notice of stoppage before a predetermined time of power supply stop, and notify the user that the power supply has been forcibly stopped by the notification unit 15 after the actual power supply stop.

In the manufacturing time determination, whether or not power supply is possible is determined using the received manufacturing date 165 and elapsed time information 175 specifying a preset usable year.
That is, when the current date has already passed the number of years specified by the elapsed year information from the date of manufacture 165, power is not supplied from the plug blade receiving portion to the plug.
For example, when the elapsed year information is 175 and “5 years” is set, the received manufacturing date is “April 1, 2005” and the current date is “May 1, 2010”. If it is, since five years have already passed since the date of manufacture, power is not supplied to the plug.

Here, even if it is determined that power supply is possible by voltage determination and current determination, power supply is not performed. On the other hand, power supply is permitted if the current date is within 5 years after manufacture. This is because safety is taken into account when an elapse of a predetermined period after manufacturing, because it is considered that there is a possibility that an obsolete electric device has a failure regardless of whether it is used or not.
However, this “manufacturing date” 165 does not have to be included in the barcode 22 in the case of an electrical device whose safety is sufficiently ensured even when it is old. Alternatively, the manufacturing time determination based on the manufacturing date may not be performed in conjunction with the model information 163.

In the usage period determination, the use period 166 received is used to determine whether power can be supplied.
When the current date has already passed the time limit specified by the usage period information, power supply from the plug blade receiving portion to the plug is not performed.
For example, when information “10 years from March 1, 2010” is included as the usage period 166 in the barcode 22 of a certain electrical device 3, the current date is “March 1, 2015”. If the current date is “March 1, 2020” after 10 years, power is not supplied to the plug.
Alternatively, when the date of use expiration date is set as the usage period 166, for example, if "use end date: July 1, 2017" is set, "July 1, 2017" Permits power supply, but does not supply power to the plug after the current date is “July 2, 2017”.
As described above, power supply can be controlled in consideration of the safety of electrical equipment by setting the model and time information in the bar code in advance.

In FIG. 1, a plug 2 is a portion that applies power to a main body portion of the electrical device 3 by being inserted into an outlet 1.
The plug 2 mainly includes a plug blade 21, a barcode 22, and a power receiving unit 23.
Here, the plug blade 21 is generally a bipolar convex electrode portion, and is a portion that receives power by being inserted into the concave portion of the plug blade receiving portion 14. The power receiving unit 23 is a part that supplies the power received through the plug blade 21 to the main body of the electric device 3.

The bar code 22 is a piece of paper storing code information, and is affixed on the surface of the plug so that it can be read by the bar code reading unit 13 of the outlet.
The bar code 22 is disposed at a position where the bar code reader 13 can read the plug 2 when the plug 2 is inserted into the outlet 1.
Specifically, the position is such that the light emitting unit 131 and the light receiving unit 132 of the barcode reading unit 13 provided in the outlet 1 are opposed to each other, and the reflected light from the barcode is incident on the light receiving unit 132. In addition, a barcode is arranged.
When the plug 2 is inserted into the outlet 1 and the distance between the barcode 22 and the light receiving unit 132 is within a predetermined range, the reflected light from the barcode is incident on the light receiving unit 132 and the code information is read. Like that.

FIG. 3 shows a schematic external view of an embodiment of the plug of the present invention.
As shown in FIG. 3, the barcode 22 is disposed on the flat surface 25 facing the outlet 1 and outside the plug blade 21.
In this case, the barcode reading unit 13 of the outlet 1 is arranged at a position facing the barcode 22 as shown in FIG.

As shown in FIG. 3B, before the plug blade 21 of the plug 2 is inserted into the plug blade receiving portion 14 of the outlet 1, even if the reading light is emitted from the light emitting portion 131, the light is emitted to the barcode 22. Even if it does not reach or the reading light is applied to the barcode 22, the reflected light does not return to the light receiving unit 132. That is, the reflected light is not received by the light receiving unit 132, and the code information cannot be read yet.
On the other hand, as shown in FIG. 3C, when the plug blade 21 of the plug 2 is inserted into the plug blade receiving portion 14 of the outlet, the reading light emitted from the light emitting portion 131 is applied to the barcode 22. The reflected light is received by the light receiving unit 132.
When reflected light is detected by the light receiving unit 132, an electrical signal corresponding to the detected reflected light is output, code information is read from the electrical signal, and power feeding control is performed based on the content of the code information. .
As described above, barcodes having various standards can be used. For example, standards such as ITF (interleaved 2OF5), CODE39, and QR code (two-dimensional symbol) can be used.

FIG. 4 shows an embodiment of a bar code coded according to the ITF standard.
Here, a bar code in which the numeral “0367” is coded according to the ITF standard is shown.
This bar code is configured by arranging two elements, a wide element in the left-right direction and a narrow element, in one direction.
The element has a black line bar and a space between two adjacent bars.
A combination of a wide bar and a narrow bar represents one data character (number), and a combination of a thick space and a narrow space also represents a single data character (number). Yes.
One data character is composed of a combination of five bars or a combination of five spaces.
As shown in FIG. 4, one number (0 to 9) is defined by a weighting code (position weight) corresponding to the position of five elements (bar or space).

For example, when focusing on the bar, the weight of the position of the bar at the leftmost position (hereinafter also referred to simply as the weight) is “1”, the weight of the bar at the second position from the left is “2”, and the weight of the bar is 3 from the left The weight of the bar at the fourth position is “4”, the weight of the bar at the fourth position from the left is “7”, and the weight of the bar at the rightmost position is the parity bit “P”. The space weight is the same.
The weight “0” at each position indicates that a narrow element (bar or space) is disposed, and “1” indicates that a thick element is disposed.
One number (1 to 9) excluding zero is represented by arranging “1” in two predetermined positions among the five positions, and the total weight of the positions where “1” is arranged is as follows. By making it equal to the value of the number, or by placing a “1” in the position of weight equal to the value of the number and another “1” in the position of the parity bit “P” Coded.

For example, in the data character “1”, “1” is arranged at the position of the leftmost weight “1”, and “1” is arranged at the position of the rightmost parity bit “P”.
The data character “3” places “1” at the position of the weight “1” and “1” at the position of the weight “2”.
That is, the data character “3” is represented by the arrangement of five elements “1, 1, 0, 0, 0”. Specifically, when “space” is used as an element, the data character “3” is sequentially from the left side. By placing a thick space (1), a thick space (1), a narrow space (0), a narrow space (0), and a narrow space (0), the number 3 Coded.
However, the number “0” is encoded by placing “1” at the positions of the weights “4” and “7”.

In the bar code shown in FIG. 4, the number “0367” is represented by 10 bars and a space between them.
The five bars on the left represent the number “0”, and the five bars on the right represent the number “6”.
Also, the number “3” is represented by the four spaces between the five bars on the left side and the space between the bar at the parity bit position and the bar with the weight “1” on the right side. .
Furthermore, the number “7” is represented by the four spaces between the five right bars and the right space of the rightmost parity bit bar.
Therefore, the left half of the barcode represents “03” and the right half of the barcode represents “67”.

In the present invention, the bar code as shown in FIG. 4 is used to represent the code information 220 shown in FIG.
For example, when “required voltage 221” and “required current 222” are included in the barcode in the code information 220, the required voltage 221 is indicated by the left five elements (bar and space), and the right five elements The required current 222 may be indicated by (bar and space).
At this time, in the example of FIG. 4, “03” indicates the required voltage 221, and “67” indicates the required current 222.
In this way, 100 types of required voltage and 100 types of required current values can be set in a bar code representing a 4-digit number.

As another embodiment, when the number of voltage values and current values may be 10 or less, the required voltage and the required current can be expressed by a bar code consisting of five bars. For example, the required voltage may be expressed by arranging five bars, and the required current may be expressed by five spaces between the bars.
Further, other code information (223 to 226) can be coded by the same method and can be included in the barcode.
For example, when four code information of the required voltage 221, the required current 222, the model information 223, and the power feeding time 224 are included in the barcode, the required voltage is represented by the five bars on the left side, and the five spaces on the left side. The required current can be represented, model information can be represented by five bars on the right side, and power supply information can be represented by five spaces on the right side.
In this case, 10 kinds of numerical values can be set for each code information.

Further, as shown in FIG. 4, the barcode is not limited to the one composed of 10 bars. If a lot of code information needs to be included in the barcode, the number of bars may be increased. .
Furthermore, when it is necessary to code information consisting of many numerical values such as the date of manufacture, a two-dimensional code that can code more information may be used.
For example, when coding is performed including all six pieces of code information shown in FIG. 2, a one-dimensional barcode has a considerably long code in one direction, and an elongated space for attaching the barcode to the surface of the plug is secured. Although it is necessary, when a two-dimensional code is used, it is only necessary to secure a square space with a smaller area.

In this way, when code information for power supply control is included in a barcode or two-dimensional code, the barcode or two-dimensional code can be easily created on a personal computer or the like using a dedicated program, and can be easily applied to a sticker sheet or the like. Can be printed.
Further, since the paper on which the barcode or the like is printed need only be attached to a predetermined position of the plug 2, the burden on the operator is light and the manufacturing cost can be reduced.

FIG. 2 is a block diagram showing the configuration of an embodiment of a portion related to detection of code information according to the present invention.
In FIG. 2, the outlet 1 shows only a part of the configuration of FIG.
As described above, the barcode reading unit 13 includes the light emitting unit 131 that emits the reading light and the light receiving unit 132 that receives the reflected light from the barcode.
The power supply control unit 12 analyzes the electrical signal sent from the light receiving unit 132 to detect code information, and stores the code information in the storage unit 16 as reception information 160.
Here, it is preferable that the reading light emitted from the light emitting unit 131 is emitted periodically, for example, and the code information reading process is also performed periodically in synchronization.

  As the code information 220 included in the barcode 22, information corresponding to the reception information 160 described above is stored. In the present invention, the required voltage 221 and the required current 222 are information in which a voltage value and a current value necessary for the operation of the electrical device 3 connected to the plug are set in advance.

  The model information 223, the power supply time 224, the manufacturing date 225, and the use period 226 are arbitrary information, and may be stored in advance for each electric device to which the barcode 22 is attached if necessary.

In the present invention, as shown in FIG. 2, the emission of light from the outlet side to the plug side and the reflection of light including code information from the plug side to the outlet side are performed in a non-contact manner. The reflected light is received only when the bar code and the light receiving unit come within a predetermined distance, and the position and distance between them, the light emission angle, and the intensity of the emitted light are set. .
For example, as shown in FIG. 3C, the user brings the plug 2 close to the outlet 1, and the plug blade 21 of the plug is actually inserted and physically connected to the plug blade receiving portion 14 of the outlet. After that, the barcode 22 and the barcode reading unit 13 face each other so that the emitted light strikes the barcode 22 and the reflected light from the barcode enters the light receiving unit 132.

The reflected light is received by the light receiving unit 132 immediately after the tip of the plug blade 21 comes into contact with the tip of the plug blade receiving unit 14 of the outlet until the plug blade 21 is completely inserted into the plug blade receiving unit 14. Alternatively, the light may be received.
That is, from the viewpoint of preventing arc discharge, the code information can be received after the plug blade 21 and the plug blade receiving portion 14 are in physical contact. After confirming that the code information has been received, power supply may actually be started.

Furthermore, from the viewpoint of preventing arc discharge, when the plug 2 is pulled out from the outlet 1, first, after the reflected light from the barcode is not received by the light receiving unit 132, the plug blade 21 and the plug blade receiving unit 14 of the plug It is preferable to dissociate the physical contact.
That is, when the reflected light is no longer received by the light receiving unit 132, the plug blade 21 and the plug blade receiving unit 14 are still connected.
At this time, by detecting that the light is not received, it is determined that the plug 2 is in the process of being pulled out from the outlet 1, and the power supply is performed while the connection state between the plug blade 21 and the plug blade receiving portion 14 is maintained. To stop. After that, after the power supply is stopped, the connection between the plug blade and the plug blade receiving portion is dissociated, so that arc discharge can be prevented.

<Example of power supply control processing>
Hereinafter, an embodiment of the power supply control process in the outlet according to the present invention will be described.
FIG. 5 shows a flowchart of an embodiment of the power supply control process of the outlet according to the present invention.
As an initial state, it is assumed that the plug 5 is not connected to the outlet 1 and the code information is not received (plug is not connected).
In this state, it is assumed that the power supply state information 173 is set to D = 0 and the power output unit 120 is not outputting power to the plug blade receiving unit 14.
Furthermore, it is assumed that only two pieces of code information of the required voltage 221 and the required current 222 are stored in the barcode 22.

In step S1, a barcode reading operation is performed.
Here, first, the power supply control unit 12 sends a light emission request to the barcode reading unit 13.
The bar code reading unit 13 emits reading light from the light emitting unit 131 if there is this light emission request. Thereafter, when the light receiving unit 132 receives the reflected light from the barcode, it outputs an electrical signal corresponding to the reflected light.
The reading light may be emitted only for a certain period of time, for example, every certain period.

In step S <b> 2, the power supply control unit 12 checks whether or not the light receiving unit 132 receives an electrical signal corresponding to the reflected light, that is, whether or not the barcode is read.
If the outlet 1 and the plug 2 are separated from each other by a predetermined distance or more and the reflected light is not received, the barcode is not read, so the process returns to step 1 and the barcode reading operation is performed again.
On the other hand, when the plug 2 is inserted into the outlet 1, the barcode reading unit 13 and the barcode 22 approach within a predetermined distance, and the light receiving unit 132 receives reflected light from the barcode, it is included in the barcode. Since the electrical signal corresponding to the code information to be output is output, the process proceeds to step S3.

Next, in step S <b> 3, the power supply control unit 12 detects code information corresponding to the output electrical signal, acquires the reception information 160, and stores it in the storage unit 16.
Here, as the received code information, a required voltage 161 (Vx) and a required current 162 (Iy) are acquired. However, the other code information (163 to 166) is not essential, and is not acquired because it is not stored in the barcode 22 in this embodiment.

In step S <b> 4, the voltage determination unit 121 performs a determination process for the required voltage 161 and determines whether power can be supplied.
Specifically, the voltage determination information 171 (Va, Vb) is read, and this information 171 is compared with the received request voltage 161 (Vx) to satisfy a predetermined supplyable voltage condition (Va ≦ Vx ≦ Vb). In this case, it is determined that power of the required voltage can be supplied from this outlet. In this case, the process proceeds to step S5.
On the other hand, when the above conditions are not satisfied, it is determined that power feeding is not possible, and the process proceeds to step S7.

In step S <b> 7, the notification unit 15 performs notification indicating that the required voltage power cannot be supplied.
For example, information indicating that power feeding is not possible is displayed on the display unit 151. When the display unit 151 is an LED, for example, a red LED is turned on or blinked.
Alternatively, when the audio output function is provided, audio indicating that power cannot be supplied is output from the speaker 152.
Furthermore, in step S7, the power supply state information 173 (D) is set to zero which means a power supply stop state (D = 0).
Thereafter, the process proceeds to step S8.

On the other hand, in step S <b> 5, the current determination unit 122 performs a determination process for the requested current 162 and determines whether power can be supplied.
Specifically, the current determination information 172 (Imax) is read, and the information 172 is compared with the received request current 162 (Iy). When the predetermined supplyable current condition (Iy ≦ Imax) is satisfied, It is determined that power corresponding to a desired required current can be supplied from the outlet. In this case, the process proceeds to step S6.
On the other hand, when the above conditions are not satisfied, it is determined that power feeding is not possible, and the process proceeds to step S7.

When the process proceeds to step S6, it means that power supply that satisfies both the required voltage 161 and the required current 162 is possible from this outlet.
In step S <b> 6, the voltage conversion unit 123 converts the power supply voltage input from the input unit 11 into the required voltage 161.
When the power supply is DC, DC-DC conversion is performed. Alternatively, AC-AC conversion is performed when the power supply is AC.
Thereafter, the power output unit 120 outputs the feed power having the converted supply voltage to the plug blade receiving unit 14. Thereby, electric power feeding is started with respect to the plug blade 21 connected to the plug blade receiving portion 14.
In step S6, the power supply state information 173 (D) is set to 1 (D = 1) which means that power is being supplied. Thereafter, the process proceeds to step S8.

In step S6, the notification unit 15 may notify that the power supply state has been entered. For example, in the case of LED display, a green LED indicating that power is being supplied may be displayed.
In step S6, after the user inserts the plug 2 into the outlet 1, the plug and the outlet are in a connected state. From the viewpoint of the user, the power supply is started by checking the display of the green LED. It can be determined that it is possible to use the connected electrical equipment.

  On the other hand, in step S7, from the user's viewpoint, since the plug 2 is inserted into the outlet 1, it is desirable that the power supply is possible and the connected electrical device can be used. By confirming, the user can know that the electrical device cannot be used at the outlet.

In step S <b> 8, the power supply control unit 12 causes the barcode reading unit 13 to perform a barcode reading operation. This operation may be performed in the same manner as in step S1.
In step S9, as in step S2, it is checked whether or not the reflected light from the barcode is received.
Here, when the reflected light is received, it means that the plug is connected to the outlet, that is, the power feeding state has been continued up to the present time, so that the process returns to step S8 and the reflected light is received. Check again. In this case, the power supply state is continued as it is.

  On the other hand, when the reflected light by the barcode is not received in step S9, the process proceeds to step S10. The case where the reflected light is not received is, for example, the case where the plug 2 is pulled out from the outlet 1.

In step S10, the current power supply state information 173 is confirmed to check whether power supply is being performed (D = 1) or power supply is being stopped (D = 0). If power is being supplied, the process proceeds to step S11, and it is no longer necessary to supply power because the plug has been pulled out, so power supply is stopped.
That is, the power supply control unit 12 stops the voltage conversion process by the voltage conversion unit 123 and the power output process by the power output unit 120. Then, it returns to step S1.

On the other hand, if the current power supply state information 173 is D = 0 in step S10, the process proceeds to step S12, and the power supply disabled notification performed by the notification unit 15 in step S7 is stopped. Then, it returns to step S1.
When this step S12 is executed, the user once inserted the plug 2 of the electric device into the outlet 1 in order to use the electric device. It can be considered that the electric device cannot be used at the outlet and the plug 2 is pulled out from the outlet 1.

Therefore, before the actual use of the electrical device, if the power supply is not possible, the power supply is not started, and the user can know before use that the intended electrical device cannot be used. Then, after starting to use the electric device, it is possible to prevent a problem that the use is stopped halfway.
Such a correspondence can be realized because not only the required voltage 161 but also the required current 162 of the electrical device is stored in advance in the barcode and the current is determined for the received required current 162.

<Other code information determination processing>
In the embodiment of FIG. 5, the case where only the required voltage 161 and the required current 162 are stored as code information and received by the barcode reading unit 13 has been described.
Here, a case will be described in which, in addition to the two pieces of code information, other code information (163 to 166) is included in the barcode 22 in advance and received.

FIG. 6 shows a time chart of an embodiment of power supply control that is performed between the outlet and the plug by receiving the code information.
In FIG. 6, the processing of emitting reading light, receiving reflected light from a barcode, determining required voltage, and determining required current may be performed in the same manner as shown in FIG.

In step SC <b> 1 of FIG. 6, when the outlet 1 and the plug 2 are not in proximity, the reading light is periodically emitted from the light emitting unit 131 of the outlet 1. However, in the non-approaching state, the reading light does not strike the bar code 22, so that no reflected light is generated.
When the plug 2 is inserted into the outlet 1 and the barcode reading unit 13 and the barcode 22 approach each other up to a predetermined distance, the reading light is applied to the barcode, and the reflected light from the barcode is directed toward the light receiving unit 132. Proceed to.

In step SC2, the light receiving unit 132 receives the reflected light from the barcode.
In step SC3, an electrical signal generated from the received reflected light is analyzed. As a result, the code information is acquired from the electrical signal and stored as the reception information 160 in the storage unit 16.
For example, if the received code information includes model information, model information 163 is stored.

In step SC4, the voltage determination unit 121 performs a required voltage determination process. This process is the same as step S4 in FIG. When the received request voltage 161 does not satisfy the condition of step S4, the process proceeds to step S7 to notify that power cannot be supplied and the following processing is not performed.
If the required voltage 161 satisfies the condition of step S4 in step SC4, the process proceeds to step SC5, and the current determination unit 122 performs a request current determination process. This process is the same as step S5.
If the requested current does not satisfy the condition of step S5, the process proceeds to step S7.
If the requested current satisfies the condition of step S5, the process proceeds to step SC6. In step SC6, the code information determination unit 124 performs a determination process on the received other code information.

For example, when the model information 163 is received, the code information determination unit 124 performs a model determination process.
In the model determination process, the model of the connected electrical device is specified from the received model information 163, and the energization time stored in the model determination information 174 is read. If none of the models stored in advance in the model determination information matches the received model information 163, the process may not be advanced to the next step, and a notification that power supply is not possible may be made as in step S7.

In step SC <b> 7, the voltage converter 123 converts the supply voltage into the required voltage 161 in order to supply power.
In step SC <b> 8, the power output unit 120 outputs power having the required voltage to the blade receiving part 14.
Thereby, supply of electric power corresponding to the required voltage and the required current is started.
On the plug side, in step SP1, the plug blade 21 starts to receive power.
Further, the power supply state information (D) is set to 1.
Furthermore, when the model information 163 is received, a timer corresponding to the read energization time is started. That is, the count of the continuous use time of the connected electrical device is activated, and a check is started as to whether or not this energization time has elapsed.
Thereafter, the connected electrical device is ready for use (power feeding).

  Thereafter, in step SC9, when the energization time timer is activated, it is confirmed whether or not the energization time elapses while the plug blade receiving portion 14 and the plug blade 21 remain connected and energized. . If the energization time has elapsed while the power is being supplied, the supply of power is stopped in step SC10. That is, the power output unit 120 stops outputting power.

Thereby, on the plug side, the power reception from the plug blade 21 is stopped as in step SP2. Even when the plug blade 21 is connected to the plug blade receiving portion 14, the power reception is stopped and a non-power supply state is entered. Therefore, in step SC11, the power supply is not stopped due to the failure of the electric device, but a notification indicating that the power supply is stopped is made to ensure safety because a predetermined continuous use time has elapsed. If possible, the notification unit 15 notifies the power supply stop so that the cause can be understood.
By this notification, even if the device cannot be used during the use of the electric device, the user can know that the power supply is forcibly stopped for safety.

When the power supply time 164 is received as the code information, the power supply time is determined, and a timer for counting the time corresponding to the power supply time is started together with the start of power output. When the timer count ends, the power supply is stopped because a predetermined power supply time has elapsed. Further, a notification is made so that it is understood that the cause of the power supply stop is due to a preset power supply time.
According to this, for example, the power supply is forcibly stopped after the elapse of the power supply time preset by the manufacturer, so that it is possible to perform power supply control with higher safety based on the manufacturer's original standard of the electrical equipment.

Further, when the manufacturing date 165 is received as the code information, the manufacturing time is determined to determine whether power supply to the plug is possible.
Here, it is determined whether or not the current date exceeds the elapsed years from the date of manufacture 165 using the received date of manufacture 165 and the age information 175 stored in advance. If it has already exceeded the number of years that have already passed, it is determined that power cannot be supplied, the power is not supplied, and the notification unit 15 notifies the user accordingly.
If the current age has not been exceeded, power supply is permitted.
According to this, it is possible to prevent the use of a rather old electric device that is intended to be used even after a predetermined age, and to perform power supply control with higher safety based on the manufacturer's safety standards.

Furthermore, when the usage period 166 is received as the code information, the usage period is determined to determine whether power supply to the plug is possible.
If the received use period 166 includes the last date that can be used, and the current date has already passed this last date, it is determined that power cannot be supplied, and Instead, the notification unit 15 notifies the user to that effect. If the final date is not yet passed, power supply is permitted.
According to this, since it is possible to prevent the electric device from being used only until the use period preset by the manufacturer of the electric device, it is possible to ensure higher safety based on the manufacturer's safety standards.

DESCRIPTION OF SYMBOLS 1 Outlet 2 Plug 3 Electric equipment 4 Power supply part 11 Input part 12 Power supply control part 13 Barcode reading part 14 Plug blade receiving part 15 Notification part 16 Memory | storage part 21 Plug blade 22 Barcode 23 Power receiving part 120 Power output part 121 Voltage determination Unit 122 Current determination unit 123 Voltage conversion unit 124 Code information determination unit 131 Light emitting unit 132 Light receiving unit 151 Display unit 152 Audio output unit (speaker)
160 Reception information 161 Request voltage 162 Request current 163 Model information 164 Power supply time 165 Date of manufacture 166 Usage period 171 Voltage determination information 172 Current determination information 173 Power supply state information 174 Model determination information 175 Elapsed year information (elapsed time information)
220 Code information 221 Required voltage 222 Required current 223 Model information 224 Power supply time 225 Date of manufacture 226 Usage period

Claims (18)

An input unit for inputting supplied power;
A blade receiving part for supplying the input power to the plug of the electrical device to be connected;
A code that emits reading light to a bar code provided in the plug, receives reflected light from the bar code, is stored in the bar code, and includes information on the required voltage and required current of power used by the electrical device A barcode reader for reading information;
A power supply control unit that determines whether power supply to the electrical device is possible and outputs the input power to the plug blade receiving unit;
The power supply control unit is configured such that the required voltage read by the barcode reading unit satisfies a predetermined supplyable voltage condition, and the required current read by the barcode reading unit satisfies a predetermined supplyable current condition. An outlet characterized by supplying power from the plug blade receptacle to the plug when there is. Code information read by the bar code reader, voltage determination information for determining whether or not the required voltage included in the code information is a supplyable voltage, and whether the required current included in the code information is a supplyable current A storage unit for storing current determination information for determining whether or not,
The power supply control unit
The read request voltage is compared with the voltage determination information, and the read request current is compared with the current determination information to satisfy the supplyable voltage condition and the supplyable current condition. In this case, the power supply from the plug blade receiving portion to the plug is performed. The current determination information is a preset upper limit value of supplyable current,
The outlet according to claim 2, wherein the supplyable current condition is that the read request current is equal to or less than an upper limit value of the supplyable current. When any one of the supplyable voltage condition and the supplyable current condition is not satisfied,
The outlet according to claim 2 or 3, wherein the power supply control unit does not supply power from the plug blade receiving unit to the plug. When the code information includes model information of the electrical device,
The storage unit stores model determination information including information for specifying a model of an electrical device and energization time set for each model,
When the read model information matches the information specifying the model of the model determination information, the power supply control unit starts supplying power to the plug and then a time corresponding to the energization time of the model determination information has elapsed. The outlet according to any one of claims 2 to 4, wherein power supply to the plug is stopped. When the code information includes power supply time information that allows continuous operation of the electrical device,
The power supply control unit stops power supply to the plug when a time corresponding to the power supply time information has elapsed after starting power supply to the plug. The outlet described. The code information includes the date of manufacture of the electrical device, and the storage unit stores elapsed time information for specifying a usable time,
When the current date has already passed the time specified by the elapsed time information from the read manufacturing date, the power supply control unit does not supply power from the plug blade receiving unit to the plug The outlet according to any one of claims 2 to 4, wherein the outlet is provided.   The outlet according to claim 7, wherein the elapsed time information is information for specifying the number of years. When the code information includes usage period information for specifying a time limit for permitting use of the electrical device,
The power supply control unit does not perform power supply from the plug blade receiving unit to the plug when the current date has already passed the time limit specified by the use period information. 4. The outlet according to any one of 4. The barcode reading unit includes a light emitting unit that emits reading light to the barcode of the plug, and a light receiving unit that receives reflected light from the barcode,
The light emitting unit and the light receiving unit are disposed at a position facing the barcode of the plug when the plug is connected to the plug blade receiving unit, and the reflected light from the barcode enters the light receiving unit. The outlet according to any one of claims 1 to 9, characterized in that:   The outlet according to any one of claims 1 to 10, further comprising a notifying unit for notifying that power is being supplied when power is supplied from the plug blade receiving part to the plug.   When not supplying power from the plug blade receiving portion to the plug, the information processing device further includes a notifying unit for notifying that power supply is not performed because either the supplyable voltage condition or the supplyable current condition is not satisfied. The outlet according to any one of claims 1 to 10.   The said alerting | reporting part is provided with any one or both of the display part which displays alerting | reporting content visually, and the audio | voice output part which alert | reports alerting | reporting content auditorily, Both are characterized by the above-mentioned. Outlet. The power supply control unit
Based on the required voltage read by the barcode reading unit, a voltage conversion unit that converts a supply voltage for power input from the input unit into the required voltage;
The outlet according to any one of claims 1 to 13, further comprising: a power output unit that outputs electric power having a supply voltage after conversion from the plug blade receiving unit.   The outlet according to any one of claims 1 to 14, wherein the power input to the input unit is either DC power supplied from a DC power supply or AC power supplied from an AC power supply. .   A power feeding system comprising: the outlet according to any one of claims 1 to 15; and a plug provided with the barcode including the code information in advance.   The code information included in the barcode of the plug includes a required voltage that is an operating voltage of the electrical device to which the plug is connected, and a required current that is an operating current of the electrical device to which the plug is connected, and It includes any one or more of model information of the electrical equipment, power supply time information that allows continuous operation, manufacturing date information of the electrical equipment, and usage period information that specifies a time limit that permits use of the electrical equipment. The power feeding system according to claim 16. The power supply control unit
2. The power supply from the plug blade receiving portion to the plug is not performed when the required current read by the barcode reading portion exceeds an upper limit value of a predetermined supplyable current. The outlet described.

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