KR101607451B1

KR101607451B1 - Standby Power Interception Socket Outlet Using Algorithm for Measuring Current and Method for Implementing Algorithm of Measuring Current

Info

Publication number: KR101607451B1
Application number: KR1020150120132A
Authority: KR
Inventors: 정효성; 이연수
Original assignee: (주)에스제이 이엘씨
Priority date: 2015-08-26
Filing date: 2015-08-26
Publication date: 2016-03-31

Abstract

[0001] The present invention relates to a stand-by power automotive terminal socket and a current measuring method using an algorithm for measuring the current used, and a stand-by power automotive terminal socket using an algorithm for measuring the current used according to the present invention, A main body portion including a MCU and including a circuit portion forming a standby power interruption circuit and a power supply circuit, and a power terminal connected to the power supply circuit of the circuit portion to supply operation power; And a power supply terminal connected to a front surface of the main body to supply operation power to a connection terminal of the plug through a power terminal of the main body when the connection terminal of the plug is inserted, And a power supply control switch for completely shutting off power supplied to the standby power cut-off circuit and the power supply circuit constituting the circuit unit when the connection terminal of the power supply control circuit is not inserted.
Therefore, the present invention can reduce the size of the stand-by power cut-off receptacle that is embedded in the wall of the building by using the MCU that implements the use current measuring algorithm, and by using the safety pin and the power supply control switch installed in the receptacle, It is possible to provide a standby power outlet and a current measuring method by using an algorithm for measurement of the used current which can precisely measure the used current as well as completely shut off the standby power when the connection terminal is not connected to the outlet have.

Description

TECHNICAL FIELD [0001] The present invention relates to a stand-by power supply socket and an algorithm for measuring a current used in a standby power supply using an algorithm for measuring current,

The present invention relates to a method of implementing an algorithm for measuring a current in use and a standby power outlet using an algorithm for measuring a current used. More particularly, the present invention relates to an MCU implementing an algorithm for measuring a current used, Standby power It is possible to reduce the size of the automobile outlet but it is possible to accurately measure the current used. In addition, by using the safety pin and the power supply control switch installed in the outlet, the standby power can be completely The present invention relates to a method of implementing an algorithm for measuring a used current and an outlet for a standby power automobile using an algorithm for measuring a current used for current measurement.

Plugs installed in electrical appliances such as household appliances, office appliances, and industrial appliances generally used are supplied with power by inserting the connection terminals of the plug into the connection holes of the receptacle installed on the inner wall of the building.

In this way, even when the plug is plugged into the outlet, the electric power is slightly consumed due to the contact resistance even when the plug is not in use. In order to maintain the basic state capable of responding to the control signal of the electronic product, It keeps flowing inside and consumes power.

For example, the power switch of a PC is not a switch that actually cuts off and supplies power, but rather a switch for giving an ON / OFF signal to a control circuit. In the case of a TV, The plug connected to the TV is plugged into the wall outlet and needs to consume current even when waiting to receive the remote control signal.

In addition, standby power consumption is increasing due to convenience in life such as auxiliary functions (eg, clock, display), which are not main functions of electrical products, and wasteful standby power is increasing accordingly.

As a result of such a large amount of power consumption due to the use of the standby current, it has conventionally been used to disconnect the plug of the appliance from the outlet or to cut off standby power by using an auxiliary switch such as a multi-tap.

Meanwhile, various techniques have been proposed to reduce standby power such as a standby power saving type push switch structure of Korean Patent Laid-Open Publication No. 10-2006-0008699, but such conventional techniques are basically required to maintain a microcomputer or the like (Standby power) is not maintained, and standby power in the electrical product is not fundamentally blocked. Further, a separate switch that is mechanically operated by the user is required, which inconveniences the user, There is a problem that the blocking function is not used.

In addition, the "stand-by power outlet" that is buried in the wall of the building according to the prior art basically includes an amplifying circuit for amplifying the measured value measured by the current sensor and a filter circuit It is difficult to reduce the size of the circuit board. Therefore, there is a problem that the space inside the landfill box is narrowed during the actual wiring process, and the installation work is difficult. Also, the waveform that has been shaped through the amplifier circuit and the filter circuit is input to the MCU Therefore, it is difficult to measure the current in milliamperes, which is generally used, and it is difficult to accurately measure due to the error of the intermediate circuit because it is estimated by estimating the approximate value.

Therefore, it is possible to completely cut off the use current applied to the stand-by power cut-off circuit without any user's operation, to reduce the size of the space inside the fill-in box occupied by the stand-by power cut-off receptacle buried in the inner wall of the building, There is a desperate need for realistic and highly utilizable technology for automobile outlets.

Korean Patent Publication No. 10-2006-0008699 (2006.01.27)

Accordingly, the present invention has been made in order to solve the above problems, and it is an object of the present invention to provide an MCU that implements an algorithm for measuring a current used to reduce the size of an outlet for a standby power automobile, It is possible to accurately measure the current, and it is possible to use the safety pin installed in the socket and the power supply control switch to switch off the standby power when the connection terminal of the plug is not connected to the outlet. It is an object of the present invention to provide a method of implementing an algorithm for an automobile outlet and a current measuring method.

A standby power automotive terminal socket using an algorithm for measuring a current used according to an embodiment of the present invention includes a circuit unit including an MCU that implements an algorithm for measuring a current used to form a standby power cutoff circuit and a power supply circuit, A main body unit having a power terminal connected to the power supply circuit and supplying operation power; And a standby power cut-off circuit for operating the standby power cut-off circuit constituting the circuit part while operating power is supplied to a connection terminal of the plug through a power terminal of the main body when the connection terminal of the plug is coupled to the front face of the main body, And a power supply control switch for completely shutting off the power applied to the standby power cut-off circuit and the power supply circuit constituting the circuit portion when the connection terminal of the plug is not inserted.

The receptacle includes: a main case coupled to a front surface of the main body to support the main body; A main body having a shape corresponding to an external shape of the plug and protruding from a rear surface of the main case to form a receiving space for receiving the plug and a pair of insertion ports for inserting connection terminals of the plug, Fixed government; A protruding portion formed horizontally across the center of the fixing portion and formed with wings covering the pair of insertion ports at both ends in the longitudinal direction and vertically centered vertically, A safety pin which is inserted through the insertion hole of the safety pin and which is rotated at a predetermined angle by the spring to expose the insertion port; And a push button disposed at a lower portion of the back surface of the fixing portion and contacting the side surface of the safety pin when the safety pin is turned, so that the standby power cut-off circuit and the power supply circuit A power supply control switch for controlling an OFF operation; And a safety cover formed to have a shape corresponding to a rear surface of the fixing part and preventing the safety pin and the power supply control switch from being separated from each other and sealing the safety cover.

Wherein the fixing portion includes a switch fixing groove formed to receive the external shape of the power supply control switch at a rear upper side facing the front surface of the main body portion while a push button of the power supply control switch is disposed at the lower side, A safety pin guide jaw formed along a movement path of the safety pin wing for guiding a rotation direction of the safety pin and a guide pin extending from a guide jaw corresponding to a movement path starting portion of the safety pin wing so as to prevent the safety pin from rotating in the reverse direction, And a support portion.

The MCU of the circuit part constituting the main body part includes an input part for receiving a voltage value proportional to the amount of current measured through the current sensing sensor as an analog value; An AD converter for sampling a voltage input through the input unit and converting the sampled voltage into a digital value; A comparison operation unit for comparing the digital value converted by the A / D conversion unit with a center value of a voltage measurable by the current sensor to generate operation data; A digital filtering unit for removing noise by performing IIR filtering on the operation data input through the comparison operation unit; A calculation unit for calculating and calculating a measured value of a current using noise-canceled calculation data through the digital filtering unit; A memory for accumulating the used current measurement values calculated by the calculation unit and storing them as comparison data; And an MCU control unit for comparing the used current measurement value of the calculation unit with the comparison data stored in the memory to determine whether to shut off the power supply to the standby power cut-off circuit and the power supply circuit constituting the circuit unit .

The power supply circuit of the circuit part constituting the main body part may be formed by a switching mode power supply (SMPS) method using a high-speed switching circuit.

The power supply circuit of the SMPS scheme can reduce its own standby current and consumed current by using a PSR (Primary-Side Regulation) circuit.

The power supply circuit of the SMPS scheme can implement a high-speed switch driving scheme using a PFM (Pulse Frequency Moudulation) control scheme, thereby reducing power consumed when the load power is low and in standby mode.

The high-speed switching driving method can reduce a standby power consumption by applying a power-down mode for stopping power use at the time of switching control.

The MCU control unit may have an IR remote control learning function.

A method of implementing an algorithm for measuring a current used in a standby power automotive terminal, the method comprising: receiving a voltage value proportional to an amount of current measured through a current sensing sensor as an analog value; Sampling a voltage value proportional to an amount of the measured current input as the analog value and converting the sampled voltage value into a binary digital value; Comparing the converted digital value with a center value of a voltage measurable by the current sensing sensor to generate operation data; Removing noise by digitally filtering the arithmetic data using an IIR filter; Calculating and calculating a measured value of the used current using the noise-removed calculation data; Storing comparison data for determining whether standby power is blocked by accumulating the used current measurement values; And comparing the used current measurement value with the comparison data to determine whether to shut off the power applied to the standby power interruption circuit and the power supply circuit.

As described above, the present invention includes an MCU that implements an algorithm for measuring the current used, and does not require a circuit element such as an amplifier circuit and a filter circuit as in the prior art, It is possible to reduce the size of the internal space of the buried box, thereby facilitating the installation work.

In addition, the present invention can include an MCU that implements an algorithm for measuring a current used instead of inputting a waveform shaped through an amplifier circuit and a filter circuit to an MCU, so that the measured voltage value of the current sensor can be directly input and processed Since milliamperes can be measured, it is possible to accurately measure the current used.

Further, according to the present invention, by using a safety pin and a power supply control switch provided in a socket-outlet, when the connection terminal of the plug is not connected to the socket, the used current applied to the standby- It is effective.

In addition, the present invention can reduce the circuit elements installed in the concert of the standby power automobile stage, thereby reducing the manufacturing cost and the influence of the noise caused by the electronic parts, and it is possible to reduce the propagation delay time, So that the product characteristics can be improved.

FIG. 1 and FIG. 2 are front and rear perspective views of a stand-by power vehicle socket outlet using an algorithm for measuring a current used according to an embodiment of the present invention.
FIG. 3 is a front exploded view of the stand-by power automotive out- let receptacle shown in FIG. 1, and FIG. 4 is a detailed view for explaining the main case of the stand-by power automotive out- let receptacle shown in FIG.
FIGS. 5 to 6 are views for explaining the operation when connection terminals of a plug are connected to or disconnected from an outlet of a standby power automobile according to an embodiment of the present invention.
7 is a front assembled view of a main case shown in FIG.
8 is a circuit diagram for explaining an operation process of a stand-by power automotive terminal socket according to an embodiment of the present invention.
Fig. 9 is a schematic diagram for comparing the circuit configuration of the main body of the present invention with that of the prior art.
10 is a block diagram schematically illustrating a detailed configuration of an MCU of a main body circuit incorporated in the stand-by power automotive alternator socket shown in FIG.
11 to 12 are flowcharts for explaining the remote controller registration and the remote controller operation of the standby power cut-off receptacle by the MCU controller shown in FIG.
FIG. 13 is a flowchart illustrating a method of measuring a using current of an outlet of a standby power automobile using a using current measurement algorithm according to an embodiment of the present invention.

The description of the present invention is merely an example for structural or functional explanation, and the scope of the present invention should not be construed as being limited by the embodiments described in the text. That is, the embodiments are to be construed as being variously embodied and having various forms, so that the scope of the present invention should be understood to include equivalents capable of realizing technical ideas.

Meanwhile, the meaning of the terms described in the present invention should be understood as follows.

The terms "first "," second ", and the like are intended to distinguish one element from another, and the scope of the right should not be limited by these terms. For example, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

It is to be understood that when an element is referred to as being "connected" to another element, it may be directly connected to the other element, but there may be other elements in between. On the other hand, when an element is referred to as being "directly connected" to another element, it should be understood that there are no other elements in between. On the other hand, other expressions that describe the relationship between components, such as "between" and "between" or "neighboring to" and "directly adjacent to" should be interpreted as well.

It should be understood that the singular " include "or" have "are to be construed as including a stated feature, number, step, operation, component, It is to be understood that the combination is intended to specify that it does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

In each step, the identification code (e.g., a, b, c, etc.) is used for convenience of explanation, the identification code does not describe the order of each step, Unless otherwise stated, it may occur differently from the stated order. That is, each step may occur in the same order as described, may be performed substantially concurrently, or may be performed in reverse order.

All terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. Commonly used predefined terms should be interpreted to be consistent with the meanings in the context of the related art and can not be interpreted as having ideal or overly formal meaning unless explicitly defined in the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 and FIG. 2 are front and rear perspective views of a stand-by power vehicle socket outlet using an algorithm for measuring a current used according to an embodiment of the present invention.

As shown in the drawing, a stand-by power automotive terminal socket using an algorithm for measuring current used according to an embodiment of the present invention may include a main body 100 and a receptacle 200.

More specifically, the main body 100 includes an MCU that implements an algorithm for measuring a current to be used, and includes a circuit unit for forming a standby power interruption circuit and a power supply circuit, and a power supply circuit A power supply terminal (not shown) for supplying power can be built in.

The receptacle 200 is coupled to the front surface of the main body 100 so that when the connection terminal 11 of the plug 10 is inserted, It is possible to operate the stand-by power cut-off circuit constituting the circuit part while supplying the operating power to the connection terminal 11. [

On the other hand, when the connection terminal of the plug 10 is not inserted, the receptacle 200 does not supply power to the standby power automobile single circuit and the power supply circuit constituting the circuit portion, There is no power consumption at all.

Fig. 3 is a front exploded view of the stand-by power automobile outlets shown in Fig. 1, and Fig. 4 is a view showing a main case, a safety pin, and a power supply control switch of the standby power automobile outlets shown in Fig.

Referring to FIGS. 3 to 4, the constituent elements of the receptacle 200 will be described in detail.

As shown in the drawing, the receptacle 200 may include a main case 210, a fixing part 220, a safety pin 230, a power supply control switch 240, and a safety cover 250 have.

More specifically, the main case 210 may be coupled to the front surface of the main body 100 to support the main body 100.

The fixing portion 220 has a shape corresponding to the outer shape of the plug 10 and protrudes from the rear surface of the main case 210 to form a receiving space for receiving the plug 10, 10 may be provided with a pair of insertion ports 221 for inserting the connection terminals 11 of the plug 10 to fix the plug 10.

The safety pin 230 is coupled to a fixing protrusion 222 formed at the center of the fixing portion 220 and is formed to horizontally cross the fixing protrusion 222, Can be formed at both ends in the longitudinal direction.

A protrusion 231 for coupling the spring 232 to the vertical center of the safety pin 230 is formed so that the connection terminal 11 of the plug 10 is inserted through the insertion opening 221 of the fixing part 230, The insertion hole 221 can be exposed while the safety pin 230 is rotated at a predetermined angle by the spring 232. [

At this time, a thread for forming a rotation path may be formed on the surface of the fixing protrusion 222 to rotate the safety pin 230.

The spring 232 coupled to the protrusion 231 of the safety pin 230 maintains a contracted state in which one end of the spring 232 is supported by one side of the upper portion of the fixing part 220 when the safety pin 230 rotates, When the connection terminal 11 of the safety pin 230 is removed, the safety pin 230 is returned to its original position.

The power supply control switch 240 may include a push button 241 disposed on the rear side of the fixing part 220 and contacting the wing side of the safety pin 230 when the safety pin 230 turns, Off operation of the power supply applied to the standby power cut-off circuit and the power supply circuit constituting the circuit portion of the main body 100 can be automatically controlled.

That is, the power supply control switch 240 also functions to supply or cut off power to the plug 10 inserted through the receptacle 200. At the same time, the standby power interruption circuit Off operation of the semiconductor integrated circuit device.

The safety cover 250 may have a shape corresponding to the rear surface of the fixing part 220 to prevent the safety pin 230 from being separated from the power supply control switch 240 and to electrically isolate the safety pin 230 from the power supply control switch 240 .

In the embodiment of the present invention, the fixing portion 220 may include a switch fixing groove 223, a safety pin guide protrusion 224, and a plug supporting portion 225, as shown in the figure.

More specifically, the switch fixing groove 223 is formed in the upper surface of the main body 100, while receiving the outer shape of the power supply control switch 240, And the push button 241 may be arranged downward.

The position of the power supply control switch 240 can be fixed by the switch fixing groove 223 that receives the power supply control switch 240, thereby preventing malfunction of the product.

In addition, the safety pin guide jaw 224 may be formed along the movement path of the safety pin wing to guide the rotation direction when the safety pin 230 turns.

The plug supporting portion 225 may have a guide protrusion 224 corresponding to the movement path starting portion of the safety pin wing so as to support the connection terminal 11 of the plug 10 and prevent the safety pin 230 from rotating in the reverse direction. As shown in Fig.

5 to 6 are views for explaining the operation in the case where connection terminals of a plug are connected to or disconnected from an outlet of a standby power automobile according to an embodiment of the present invention. Which is a front assembly drawing.

5, when the plug 10 is detached from the receptacle 200, the safety pin 230 can cover the insertion port 221 of the fixing part 220. [ At this time, since the blade side of the safety pin 230 does not apply pressure to the push button 241 of the power supply control switch 240, the power supply can be completely cut off as described above.

6, when the plug 10 is inserted into the receptacle 200 for power supply, the safety pin 230 rotates about the fixing protrusion 222 of the fixing portion 220 and rotates about the fixing portion 220 As shown in FIG.

At this time, the connection terminal 11 of the plug 10 may be connected to a power terminal built in the main body 100 through the insertion port 221.

While the safety pin 230 is turning, the push button 241 of the power supply control switch 240 is turned on to supply power to the SMPS shown in FIG. 8 to drive the circuit of the stand-by power automotive terminal Power can be supplied to the connected load device.

Also, as described above, when the plug 10 is detached from the receptacle 200, the safety pin 230 returns to its original position due to the restoring force of the spring 232, and the power supply can be completely shut off again.

7, the safety pin 230 and the power supply control switch 240 constituting the receptacle 200 are prevented from being separated from each other by the safety cover 250. In this embodiment, It can work safely without loss of product during production assembly.

8 is a circuit diagram for explaining an operation process of a stand-by power automotive terminal socket according to an embodiment of the present invention.

As shown in the drawing, a standby power automotive terminal socket according to an embodiment of the present invention includes a safety pin 230 and a power supply control switch 240, The human power supply to the switching mode power supply (SMPS) of 'b' can be completely cut off.

5 to 6, when the plug 10 is disconnected from the receptacle 200, the push button 241 of the power supply control switch 240, which is in a state of being pressed by the safety pin 230, Power can be completely shut off while returning to the home position.

Meanwhile, in the embodiment of the present invention, the power supply circuit of the circuit portion constituting the main body may be formed by a switching mode power supply (SMPS) method using a high-speed switching circuit.

Here, the power supply circuit of the SMPS scheme can reduce the self-standby current and the consumption current by using a PSR (Primary-Side Regulation) circuit, and realize a high-speed switch driving method using a PFM (Pulse Frequency Moudulation) Thereby reducing power consumption when the load is low and standby power consumption.

At this time, since the small power source using the PSR type circuit can receive feedback using the high-speed switch at the primary coil side instead of receiving feedback at the secondary coil side of the high-frequency transformer, the opto-coupler Not only can you reduce the number of parts, but also minimize space implementation and cost savings.

In addition, the standby power consumption can be minimized by using a pulse frequency modulation (PFM) control method instead of the PWM (Pulse Width Modulation) control method used in the conventional high speed switching driving method.

In addition, the high-speed switching driving method can reduce the power consumption during standby by applying a power-down mode for stopping power use at the time of switching control.

That is, when a load of a certain rate or less is used, the standby power of the small power supply can be reduced by the power down mode in which power use is stopped at all.

Fig. 9 is a schematic diagram for explaining a comparison between the main body circuit configuration of the prior art and the main body circuit configuration of the present invention, and Fig. 10 is a schematic diagram of the MCU configuration of the circuit portion embedded in the stand- Fig.

9, the main body circuit of the present invention can be implemented as an internal program of the MCU instead of eliminating the intermediate circuit existing between the current sensing sensor and the MCU, as compared with the main body circuit structure according to the related art, The circuit structure of the sub-circuit can be simplified, thereby reducing the size of the PCB (Printed Circuit Board) product.

Hereinafter, the configuration and function of the MCU capable of simply configuring the main body circuit configuration of the present invention will be described in detail as follows.

The MCU 300 of the circuit unit constituting the main body includes an input unit 310, an AD conversion unit 320, a comparison calculation unit 330, a digital filtering unit 340, a calculation unit 350, a memory 360, A control unit 370 may be provided.

More specifically, the input unit 310 may receive a voltage value proportional to the amount of current measured through the current sensor, as an analog value.

The current sensor may be a hall-effect linear current sensor that outputs a voltage value proportional to the amount of current.

In addition, the A / D converter 320 may convert a voltage input through the input unit 310 into a digital value by sampling.

At this time, the AD converter 320 samples the voltage of the reference voltage (0 to Vref V) section supplied to the MCU 300 as a bit number, converts the sampled voltage into a binary digital value, .

The comparison operation unit 330 may generate operation data by comparing the digital value converted by the A / D conversion unit 320 with a center value of a voltage measurable by the current sensor.

Here, the voltage output of the current sensing sensor is a measurable current range from 0 V to the reference voltage. Therefore, if it is larger than the half of the measurable voltage as a reference, a positive (+) direction current and a negative (-) direction current can be obtained. As described above, the comparison operation unit 330 may compare the binary digital value with a voltage value at a half point to determine a positive (+) / negative (-) and store the value in the memory 360.

The digital filtering unit 340 may remove noise by performing IIR filtering on the operation data input through the comparison operation unit 330.

That is, an IIR filter that can relatively easily implement the arithmetic processing can be used as a process of extracting a waveform having a value that is input and stored during a certain period of time and removing a noise and calculating a desired value.

In addition, it is possible to directly input a value input to the differential equation as described below, and to extract and calculate a square wave waveform from which a sudden change amount (noise) has been removed.

[Formula 1]

In the above equation, the order N determines the accuracy of the filter. The MCU (Micro Controller Unit) can be selected according to the performance of the stand-by power cutoff product, and can be programmed and adjusted according to the function.

The calculation unit 350 may calculate and calculate a measurement value of the current to be used by using noise-canceled calculation data, such as a square wave obtained by the LOW PASS FILTER using the IIR filter through the digital filtering unit 340 .

Also, the memory 360 may accumulate the used current measurement values calculated by the calculation unit 350 and store the measurement data as comparison data for determining whether the standby power is cut off.

The MCU control unit 370 compares the measured current value of the current used by the calculation unit 350 with the comparison data stored in the memory 360 and compares the measured current value with the comparison data stored in the memory 360, It is possible to control whether or not to shut off the power supply to control the relay unit provided in the circuit unit or to display the signal to the user.

As described above, the standby power automobile terminal according to the embodiment of the present invention can produce a product capable of performing fine measurement according to the performance of the MCU by implementing an algorithm and eliminating an amplifier circuit and a filter circuit which are designed in hardware have.

In addition, by simplifying the circuit configuration, it is possible to reduce manufacturing costs and eliminate the influence of external noise when the product is implemented, and the product characteristics can be improved by shortening the propagation delay time as the circuit is reduced.

In addition, since the output voltage from the current sensing sensor is directly input without intermediate circuit, accurate current value can be measured regardless of the power supply voltage and filter characteristics of the intermediate circuit within the measurable range of the current sensor.

Meanwhile, in the embodiment of the present invention, the MCU 300 can register the remote controller to the standby power outlet using the MCU controller 370, and will be described later in FIGS. 11 to 12.

11 to 12 are flowcharts for explaining the remote controller registration and the remote controller operation of the standby power cut-off receptacle by the MCU controller shown in FIG.

As shown in the figure, the MCU control unit according to the embodiment of the present invention may have an IR remote control learning function.

11 is a process of registering an IR signal to the MCU control unit of the standby power outlet of the remote controller in the remote control learning mode.

At this time, the remote control learning mode can enter the remote control learning mode by pressing a specific key of the standby power outlet and register the key of the remote control conforming to the NEC format. As a result, It can be used conveniently when waking up to the use state.

The flowchart of FIG. 11 will be briefly described as follows.

The remote control learning start step S110 is a step of entering a remote control learning mode by a user's specific key input. In a signal receiving step S120, when a user inputs a specific key of a specific remote control, The analysis step S130 is a step of analyzing and confirming the key of the format by confirming whether the input IR signal conforms to the NEC format and implementing filtering and waveform shaping in software.

Finally, the storing step (S140) may be a step of registering and storing the key of the analyzed IR signal format as a remote control key, and then storing the key in the internal memory for remote controller operation.

Next, FIG. 12 is a flowchart illustrating a process of performing a remote controller operation by comparing previously registered remote controller specific key data with input remote controller key data.

The flow chart of FIG. 12 will be briefly described as follows.

The remote control signal receiving step (S210) is a step of receiving the received IR signal as a remote control signal after filtering and waveform shaping process, and the analyzing step (S220) checks whether the input IR signal conforms to the NEC format, (Step S230) is a step of comparing the input IR signal with the stored signal to check whether the inputted signal is a registered remote control key. In operation step S240, if it matches the registered signal And performing a wake-up operation.

FIG. 13 is a flowchart illustrating a method of measuring a using current of an outlet of a standby power automobile using a using current measurement algorithm according to an embodiment of the present invention.

The configuration for performing each step shown in FIG. 13 has been described above with reference to FIG. 10, and a detailed description of the same configuration and function will be omitted.

As shown in the figure, a method of implementing an algorithm for measuring a current used in a stand-by power automotive terminal according to an exemplary embodiment of the present invention includes receiving a voltage value proportional to an amount of current measured through a current sensor, (S20) of sampling the voltage value proportional to the amount of the measured current input as the analog value and converting the sampled voltage value into a binary digital value; and converting the converted digital value into a center value (S30) of removing the noise by digital filtering the arithmetic data using an IIR filter (S40); calculating a use current (Step S50) of calculating a measured value of the used current measurement value, and comparing the calculated used current measurement value with the comparison data for determining whether the standby power is cut off And comparing the measured current value with the comparison data to determine whether to shut off the power supply to the standby power interruption circuit and the power supply circuit (S70).

As described above, the present invention includes an MCU that implements an algorithm for measuring the current used, and it does not require a circuit element such as an amplifying circuit and a filter circuit as in the prior art, The size of the space inside the box can be reduced, and the installation work can be facilitated.

Further, the present invention can reduce the circuit elements installed in the stand-by power cut-off concert, thereby reducing the manufacturing cost and the influence of noise caused by the electronic parts, and it is possible to reduce the signal propagation delay So that the product characteristics can be improved.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation, It is within the scope of the present invention that component changes to such an extent that they can be coped evenly within a range that does not deviate from the scope of the present invention.

10: Plug 11: Connection terminal
100: main body 200: receptacle
210: main case 220:
221: insertion port 222: fixing projection
223: switch fixing groove 224: safety pin guide jaw
225: plug supporting portion 230: safety pin
231: protrusion 232: spring
240: Power supply control switch 241: Push button
250: Safety cover 300: MCU
310: input unit 320: AD conversion unit
330: comparison operation unit 340: digital filtering unit
350: Calculator 360: Memory
370: MCU control unit

Claims

In a buried standby power outlet,
A circuit unit configured to form a standby power cut-off circuit and a power supply circuit by including an MCU that implements an algorithm for measuring a current used for directly receiving and measuring a measured voltage value of a current sensor;
A main body unit having a power terminal connected to a power supply circuit of the circuit unit to supply operation power; And
And a power supply control switch for completely shutting off power supplied to the power supply circuit,
Wherein the standby power cut-off circuit is connected to the front surface of the main body part and supplies operating power to the connection terminal of the plug through the power terminal of the main body part when the connection terminal of the plug is inserted and forms the circuit part, The standby power cut-off operation of the power down mode is suspended and the standby power cutoff operation is not performed when the connection terminal of the plug is not inserted,
The socket-
A main case coupled to a front surface of the main body to support the main body;
A main body having a shape corresponding to an external shape of the plug and protruding from a rear surface of the main case to form a receiving space for receiving the plug and a pair of insertion ports for inserting connection terminals of the plug, Fixed government;
A protruding portion formed horizontally across the center of the fixing portion and formed with wings covering the pair of insertion ports at both ends in the longitudinal direction and vertically centered vertically, A safety pin which is inserted through the insertion hole of the safety pin and which is rotated at a predetermined angle by the spring to expose the insertion port;
And a push button disposed at a lower portion of the back surface of the fixing portion and contacting the side surface of the safety pin when the safety pin is turned, so that the standby power cut-off circuit and the power supply circuit A power supply control switch for controlling an OFF operation; And
And a safety cover formed to have a shape corresponding to a rear surface of the fixing part and preventing the safety pin and the power supply control switch from being separated from the safety cover,
When the connection terminal of the plug is inserted through the insertion port, the power applied to the standby power interruption circuit and the power supply circuit is switched to the on state, and the connection terminal of the plug is disconnected from the insertion port, The standby power cut-off circuit and the power supplied to the power supply circuit are switched to the off state.

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The apparatus according to claim 1,
A switch fixing groove formed on the upper surface of the main body opposite to a front surface of the main body to accommodate the external shape of the power supply control switch while the push button of the power supply control switch is disposed at the lower side,
A safety pin guide jaw formed along the movement path of the safety pin wing and a guide pin extending from the guide pin corresponding to the movement path starting portion of the safety pin wing so as to prevent the safety pin from rotating in the reverse direction, And a plug supporting portion that is bent and formed on the plug supporting portion.

4. The MCU of claim 3, wherein the MCU of the circuit part constituting the main body comprises:
An input unit for receiving a voltage value proportional to an amount of current measured through the current sensing sensor as an analog value;
An AD converter for sampling a voltage input through the input unit and converting the sampled voltage into a digital value;
A comparison operation unit for comparing the digital value converted by the A / D conversion unit with a center value of a voltage measurable by the current sensor to generate operation data;
A digital filtering unit for removing noise by performing IIR filtering on the operation data input through the comparison operation unit;
A calculation unit for calculating and calculating a measured value of a current using noise-canceled calculation data through the digital filtering unit;
A memory for accumulating the used current measurement values calculated by the calculation unit and storing them as comparison data; And
And an MCU control unit for comparing the used current measurement value of the calculation unit with the comparison data stored in the memory to determine whether to shut off the power supply to the standby power cut-off circuit and the power supply circuit constituting the circuit unit A standby power automation outlet using an algorithm for measuring the current used

The power supply circuit according to claim 4,
And a switching power supply (SMPS) system using a high-speed switching circuit.

6. The power supply circuit according to claim 5,
The present invention provides a standby power automobile socket outlet using an algorithm for measuring the current used, which is characterized in that self-standing current and consumed current can be reduced by using a PSR (Primary-Side Regulation)

The power supply circuit according to claim 6, wherein the SMPS-
A high-speed switch driving method is implemented by a PFM (Pulse Frequency Moudulation) control method, so that power consumption consumed when the load is low can be reduced.

8. The method of claim 7,
And a power-down mode for stopping power use at the time of switching control of the high-speed switching drive system is applied to reduce standby power consumption.

5. The apparatus of claim 4, wherein the MCU control unit comprises:
And an IR remote control learning function.

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