Abstract:
A system for cutting off standby power of the present invention comprises: a plurality of electronic products that are controlled devices; and a main system commonly controlling the same, wherein each of the plurality of electronic products is equipped with a standby power cut-off unit, which is controlled by the main system to open or cut off the power supply path of the power input of a corresponding electronic product, thereby cutting off standby power, and wherein the main system is equipped with a device selection and actuation unit which controls the action of the standby power cut-off unit of each of the electronic products to supply or cut off power to each of the plurality of electronic products.

Description:
TECHNICAL FIELD 
     The present invention may be applied to a home network system or a power smart gird system in a home, office, factory, or the like, and relates to a standby power cut-off system that completely cuts off standby power of a plurality of electric/electronic products, apparatuses, factory equipment, or the like, and enables to have a function of inputting power manually or remotely. 
     BACKGROUND ART 
     In general, a home network system, a power smart grid system or the like is configured to perform on/off control or operation control for electronic products connected to the system from the outside. However, since the control of the electronic products from the outside is possible only when power plugs of the products are kept in the socket, the electronic products waste standby power, and the corresponding system always supplies the power for the control, and therefore the electric power is wasted. 
     In the future, it is expected that the development of the IT technology will increase the number of the electronic apparatuses, thereby increasing the waste of energy more. Due to the generation of CO2 related to the increased power production, the environment contamination will be accelerated. 
     DETAILED DESCRIPTION OF THE INVENTION 
     Technical Problem 
     Accordingly, the present invention has been conceived for improving the problems in the conventional art as described above, and provides a standby power cut-off system that includes a standby power cut-off system (a home network, a power smart grid system, or the like) so that when the electronic products/appliances are powered “off”, the standby power is completely cut off, and the power is manually turned “on” or the power supply to the product or the control may be performed remotely (via a cell phone or the like) from the outside, and enables the product to be controlled when the electronic products or apparatuses in a home, office, factory, or the like are powered “off” (the standby power is completely cut off), and a control method thereof. 
     Technical Solution 
     The electronic product according to the present invention includes standby power cut-off apparatuses  200 ,  300 , and  400  as standby power cut-off means in order to cut off the standby power, so that the product may be powered “on”, and the standby power is completely cut off when the product is powered “off” even if the plug of the product is kept in the socket. 
     In addition, a main system  10  includes a wireless communication unit  12  as a remote control means, a communication unit  15 , a device selecting and driving unit  13  so that the product is powered “on” or controlled remotely via a cellular phone or the Internet in a state when the power of the electronic product is cut off, and enables the corresponding electronic product to be powered “on”. 
     At this time, in a case in which the electronic product is a computer, in order to use a wake-up LAN when the computer is powered “off” and the power is completely cut off, the corresponding computer is powered “on” via a cellular phone or a telephone and a communication is performed through the wake-up LAN (WUL)  415  via the Internet so that necessary data becomes available. 
     In this manner, the electric power can be saved by configuring the standby power cut-off system (a home network system or a smart grid system) that can cut off the standby power, and by cutting off all the standby power when appliances/electronic products (for example, a light controlling device, a thermostat, a computer, an electronic apparatus, a smart grid controller, a cabinet panel controller, or the like) are not in use so that the power is supplied only when they are in use. 
     In addition, when the main system  10  does not perform a control, that is, when all the products connected to the system are turned “off”, in order to cut off/supply input power for completely removing the power waste by the main system  10 , the main system includes a controller  11 , a driving unit  18 , and a standby power cut-off apparatus  100 , and includes a sleep mode power unit  14  (a super capacitor or a secondary battery) as a power means required for a minimum sleep mode after the main system  10  is powered off. 
     Advantageous Effects 
     Accordingly, the present invention provides an effect in which standby power wasted in all the electronic products used in a home, office, or factory completely cuts off, and the product can be controlled when the standby power is completely cut off so that the energy can be saved without giving inconvenience to or changing a life pattern of a user, and the generation of CO2 is reduced by saving energy to prevent the environment contamination. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is an entire block diagram illustrating a standby power cut-off system according to an embodiment of the present invention; 
         FIG. 2  is a detailed block diagram illustrating a third electronic product and relating units in  FIG. 1 ; 
         FIG. 3  is a detailed block diagram illustrating a first electronic product and relating units in  FIG. 1 ; 
         FIG. 4  is a detailed block diagram illustrating a second electronic product and relating units in  FIG. 1 ; and 
         FIG. 5  is a detailed block diagram illustrating a device selecting and driving unit and relating units of a main system in  FIG. 1 . 
     
    
    
     MODE FOR CARRYING OUT THE INVENTION 
     Preferred embodiments are described in detail with reference to the accompanied drawings. In the following, specific components such as a controller, a memory unit, a device selecting and driving unit, and a communication unit are described, but the specific components are provided as an example for easier understanding of the present invention. It is obvious to those skilled in the art that certain modifications or changes of the specific components may be possible. 
       FIG. 1  is an entire block diagram illustrating a standby power cut-off system according to an embodiment of the present invention. With reference to  FIG. 1 , the standby power cut-off system according to an embodiment of the present invention includes a plurality of electronic products  20 ,  30 , and  40 , which are controlled apparatuses, a main system  10  (for example, a home network controller, a smart grid controller, or the like) which controls the plurality of the electronic products  20 ,  30 , and  40  in an integrated manner, or the like. 
     First, the configuration of the main system  10  is described in detail. First, the main system  10  includes a power unit  19  for providing power to the main system  10 , a controller  11  including a CPU (central processing unit) and a memory for controlling the main system  10  and storing data data, and a wireless communication unit  12  communicating with a cellular phone of an outside user to be remotely controlled by the cellular phone. In addition, the main system  10  includes a display and key input unit  17  equipped with an LCD display and a plurality of keys for performing various operations, displaying a data status, and inputting functions such as an address of the device by the user. 
     In addition, the main system  10  includes the power unit  19  that is provided with external power as input power and provides power for operating each function unit inside the main system  10 , a standby power cut-off unit  100  that cuts off the standby power by connecting or cutting off a power supply path for the input power provided to the power unit  19  according to the driving signal of a driving unit  18  by a control of the controller  11 , and includes a manual operation switch (corresponding to a knob described below) to provide a corresponding operation signal to the controller  11  at the time of an operation by a user, and the driving unit  18  that provides the driving signal to the power standby power cut-off unit  100  under the control of the controller  11 . 
     In addition, the main system  10  includes a device selecting and driving unit  13  that operates the standby power cut-off units  200 ,  300 , and  400  of the product and supplies power to the products in order to supply or cut off the power for the product under the control of the controller  11  when the electronic products  20 ,  30 , and  40  to be controlled are selected, and a communication unit for performing a control for communicating with the electronic products when the power is supplied to the electronic products  20 ,  30 , and  40 . 
     In addition, the main system  10  includes a sleep mode power unit  14  that stops power supply by stopping the control, proceeding to a sleep mode, and cutting off the main power and supplies minimum required power, if the power of all the electronic products  20 ,  30 , and  40  controlled by the standby power cut-off system is cut off, and the main system  10  is configured to supply power only to the controller  11 , the wireless communication  12 , the communication unit  15 , and the like in a restricted manner and to wake up periodically or at the time of interruption for supplying power and performing a normal operation. 
     In addition, an overall cut-off switch  102  to be installed in a certain position at a front door of a house in order to receive an operation for cutting off the entire standby power when the user goes out, or the like is included, and the operating signal of the overall cut-off switch  102  is configured to be provided to the controller  11  of the main system  10 . At this point, the controller  11  of the main system  10  cuts off the standby power of the entire electronic product, if it is detected that the overall cut-off switch  102  is pressed or all the managed electronic products are not in use. The overall cut-off switch  102  may be implemented simply by an on/off switch. 
     Meanwhile, the plurality of the electronic products  20 ,  30 , and  40  are provided with the external power by putting corresponding power plugs into a plurality of sockets  13 - 1 ,  13 - 2 , and  13 - 3 , respectively. The external power provided to the plurality of the electronic products is provided to the power units  202 ,  302 , and  404  through the standby power cut-off units  200 ,  300 , and  400 . 
       FIGS. 2 to 4  illustrate detailed configurations of the plurality of the electronic products  20 ,  30 , and  40 . For example,  FIGS. 2 to 4  illustrate configurations of the first electronic product  20 , the second electronic product  30 , and the fourth electronic product  40 , respectively. 
     With reference to  FIGS. 2 to 4 , the electronic products  20 ,  30 , and  40  respectively include power units  204 ,  304 , and  404  that receive external power as input power and provide the power for operating each function unit inside the electronic products  20 ,  30 , and  40 , standby power cut-off units  200 ,  300 , and  400  that cut off standby power by connecting or cutting off the power supply paths of the input power provided to the power units  204 ,  304 , and  404  according to the driving signals of the driving units  206 ,  306 , and  406  by the control of the controllers  202 ,  302 , and  402  of the products and include manual operation switches (corresponding to knobs described below) to provide corresponding operation signals to the controllers  202 ,  302 , and  402  at the time of an operation by a user, and the driving units  206 ,  306 , and  406  that provide the driving signals to the power standby power cut-off units  200 ,  300   400  under the control of the controllers  202 ,  302 ,  402 . 
     At this point, standby power cut-off units  200 ,  300 , and  400  of the respective electronic products  20 ,  30 , and  40  are configured to connect or cut off the power supply paths of the input power by the control from the device selecting and driving unit  13  of the main system  10 . Accordingly, the main system  10  can control supplying/cutting off power for the selected products. 
     At this point, the first and second electronic products  20  and  30  illustrated in  FIGS. 3 and 4  include display and input units  207  and  307  for receiving function settings according to the functions thereof from the user and displaying the operation state and data, and include a load driving unit  209  for driving connected loads (not illustrated) according to the control condition. 
     In addition, the first and second electronic products  20  and  30  respectively include communication units  215  and  315  for communication with the communication unit  15  of the main system. 
     At this point, the third electronic product  40  illustrated in  FIG. 2  may be a computer, for example. In such a case, the third electronic product  40  includes a wake-up LAN (WUL)  415  for connecting to the Internet so that the user may read, write, and manage data. 
       FIG. 5  is a block diagram illustrating the device selecting and driving unit  13  of the main system  10  in  FIG. 1  and the relating units in detail. The device selecting and driving unit  13  are configured so that each of the plurality of the electronic products  20 ,  30 , and  40  includes one driving switch S and controls an electronic product in a separated manner. For example,  FIG. 5  illustrates one driving switch S as a representative. 
     Referring to  FIG. 5 , each driving switch S may be implemented by a structure for connecting the first to fourth transistors (NPN-type switching transistors Q 1 , Q 2 , Q 3 , and Q 4 ) that perform switching according to the switching control signal provided from the controller  11 . 
     At this point, the first and second transistors Q 1  and Q 2  receive the operating power provided from the power unit  19  through an input (for example, a collector terminal), an output of the first transistor Q 1  (for example, an emitter terminal) is connected to the first terminal of the solenoid described below inside the standby power cut-off units  200 ,  300 , and  400 , and an output (an emitter terminal) of the second transistor Q 2  may be connected to the second terminal of the solenoid (a point U). In addition, an input (a collector terminal) of the third transistor Q 3  is connected to the second terminal of the solenoid, an output (an emitter terminal) is connected to a ground terminal, an input of the fourth transistor Q 4  is connected to the first terminal of the solenoid (a point P), and an output (an emitter terminal) is connected to a ground terminal. 
     At this time, the first and third transistors Q 1  and Q 3  commonly receive the switching control signals output from a first output O 1  of the controller (through the base terminal), and the second and fourth transistors Q 2  and Q 4  commonly receive the switching control signals output from a second output O 2  of the controller  11  (through the base terminal). 
     According to the structure, the controller  11  output control signals from the first output O 1  or the second output O 2  at the time of the on/off control to change the polarity of a line  33  connected to the solenoid. As a result, polarity of the line  33  connected to the solenoid inside the standby power cut-off apparatuses  200 ,  300 , and  400  of the respective electronic products  20 ,  30 , and  40  is changed to connect or cut off the power paths. 
     Meanwhile, the detailed configurations of the driving units  206 ,  306 , and  406  inside the respective electronic products  20 ,  30 , and  40  may be the same as the configuration of the driving switch S, and the driving units  206 ,  306 , and  406  may operate according to the control signals from the corresponding controllers  202 ,  302 , and  402 . 
     Hereinafter, the operation of the standby power cut-off system according to the present invention is described with reference to  FIGS. 1 to 5 . First, in the driving switch S of the device selecting and driving unit  13 , the collectors of the first and second transistors Q 1  and Q 2  are commonly connected to the power of the power unit  19 , the emitters of the third and fourth transistors Q 3  and Q 4  are commonly connected to the ground, and a point P at which the emitter of the first transistor Q 1  and the collector of the fourth transistor Q 4  are connected and a point U at which the emitter of the second transistor Q 2  and the collector of the third transistor Q 3  are connected are connected to the solenoid line  33  of the standby power cut-off units  200 ,  300 , and  400  of each product. Therefore, if a “high” pulse output is transmitted from the first output O 1  of the collector  11  in order to power “on” the specific product, this is applied to the bases of the first and third transistors Q 1  and Q 3  commonly connected to the first output O 1 . According to O, the first and third transistors Q 1  and Q 3  are turned “on”, the current flows to the solenoid of the standby power cut-off units  200 ,  300 , and  400  of the corresponding electronic products  20 ,  30 , and  40  from the point P to the point U, so that the contact points C 1  and C 2  of the standby power cut-off units  200 ,  300 , and  400  of the corresponding products are connected, the power is supplied to the corresponding products, and the products operates normally. 
     Otherwise, if a “high” pulse output is transmitted from the second output O 2  of the collector  11  in order to power “off” the specific product, this is applied to the bases of the second and fourth transistors Q 2  and Q 4  commonly connected to the second output O 2 . According to O, the second and fourth transistors Q 2  and Q 4  are turned “on”, the current flows to the solenoid of the standby power cut-off units  200 ,  300 , and  400  of the corresponding electronic products  20 ,  30 , and  40  from the point U to the point P, so that the contact points C 1  and C 2  of the standby power cut-off units  200 ,  300 , and  400  of the corresponding products are open, the power supplied to the corresponding products is cut off, and the standby power of the products is completely cut off. 
     The operation when the electronic product is manually powered “on” from the state in which the electronic product is powered “off” is described. When the user presses knobs  201 ,  301 , and  401  included in the standby power cut-off units  200 ,  300 , and  400  in order to power “on” the electronic products  20 ,  30 , and  40 , the contact points C 1  and C 2  connected thereto are connected, the power units  204 ,  304 , and  404  generate and supply power required to the product when the power is supplied to the product through a plug  11  of a socket  13 , and therefore the electronic products  20 ,  30 , and  40  normally operate. 
     When the normal operation of the electronic product is completed or the knobs  201 ,  301 , and  401  of the standby power cut-off units  200 ,  300 , and  400  are manually pressed in order to cut off the power, the contact points C 3  and C 4  of the tact switch coupled with the product are connected and the signals are transmitted to the controllers  202 ,  302 , and  402  of the product. When the controllers  202 ,  302 , and  402  detect the signals, the control signals are transmitted to the driving units  206 ,  306 , and  406 , the current flows to the solenoid of the standby power cut-off units  200 ,  300 , and  400 , the contact points C 1  and C 2  are open, the power supply is cut off, and therefore the standby power is completely cut off. 
     In a case in which the first and second electronic products  20  and  30  that communicate with the main system  10 , if an interruption is requested to the main system  10  through the communication units  215  and  315 , the main system  10  processes the interrupt request through the communication unit  15 , it is determined that that the electronic products operate normally, communications are performed periodically or when an event occurs, and normal control is performed. Here, any communication methods including RA-422, RA-485, and the like may be performed. 
     In addition, in a case of a product that does not need to communicate with the main system  10  such as the third electronic product  40  (for example, a computer), after only the corresponding product is selected and the power is supplied, the product may be controlled, for example, by selectively supplying the power, reading, modifying, and storing data through the Internet communication (wake-up LAN function). 
     During the normal operation as described above, if the main system  10  turns off the electronic product through a cellular phone from the outside (for example, in a case of a home network system), or the main system  10  analyzes the used power amount and forcibly powers off the corresponding electronic product according to the priority (for example, in case of a smart grid controller), the controller  11  selects the driving switch S of the corresponding product in the device selecting and driving unit  13 , and transmits a “high” pulse output from the second output O 2  of the controller  11  in order to power “off” the corresponding product. Accordingly, the power is applied to the bases of the second and fourth transistors Q 2  and Q 4  commonly connected to the second output O 2 , the second and fourth transistors Q 2  and Q 4  are turned on, the current flows to the solenoid of the standby power cut-off units  200 ,  300 , and  400  of the products from the point U to the point P, the contact points C 1  and C 2  of the standby power cut-off units  200 ,  300 , and  400  are open, the power supplied to the product is cut off, and therefore the standby power of the product is completely cut off. 
     Otherwise, at the time of supplying power when the product is powered off, the main system  10  turns on the electronic product through the cell phone from the outside (for example, a home system), the main system  10  analyzes the used power amount and supplies power for the corresponding electronic product according to the priority (for example, in case of a smart grid controller), the controller  11  selects the driving switch S of the corresponding product in the device selecting and driving unit  13 , and transmits a “high” pulse output from the first output O 1  of the controller  11 . Accordingly, the power is applied to the bases of the first and third transistors Q 1  and Q 3  commonly connected to the first output O 1 , the first and third transistors Q 1  and Q 3  are turned “on”, the current flows to the solenoid of the standby power cut-off units  200 ,  300 , and  400  of the products from the point P to the point U, the contact points C 1  and C 2  of the standby power cut-off units  200 ,  300 , and  400  are connected, the power supplied to the product is supplied, and therefore the products operate normally. 
     When the control of the main system  10  is not needed, for example, the user goes out, the overall cut-off switch  102  positioned in a certain position at a front door of a house is pressed, or all the electronic products are powered “off”, the main system  10  cuts off the wasted power overall. 
     That is, when the controller  11  of the main system  10  detects that the overall cut-off switch  102  is pressed or all the managed electronic products are not in use, the controller  11  controls the standby power cut-off units  200 ,  300 , and  400  of the electronic product and cuts off the standby power. In addition, the standby power cut-off unit  100  of the main system  10  is controlled through the driving unit  18  as described above to cut off the power supply and completely cut off the power consumption of the main system  10 . 
     At this time, in order to autonomously minimize the power consumption, the main system  10  enters a sleep mode, periodically wakes up to perform basic functions, and maintains the sleep mode. At this time, the sleep mode power unit  14  supplies power only to the communication unit  15 , the wireless communication unit  12 , and the controller  11 . 
     If there is an interrupt from the outside or recharging is required before the power charged in the sleep mode power unit  14  becomes a reference supply or less, the controller  11  controls the driving unit  18  so that standby power cut-off apparatus  100  of the main system  10  is controlled and the power is supplied to the power unit  19 . Accordingly, the system wakes up and performs normal operation as described above. 
     At this time, the sleep mode power unit  14  is recharged to use the power in the sleep mode so that the system may operate normally with no limitation in performing the functions, and prevent energy consumption and environment contamination by reducing unnecessary power consumption. 
     Meanwhile, the main system  10  and the standby power cut-off units  100 ,  200 ,  300 , and  400  of the plurality of the electronic products  20 ,  30 , and  40  may have a structure of the standby power cut-off apparatus as disclosed in Korean Patent Application No. 2009-72016 which is firstly filed by the applicant and registered (entitled APPARATUS FOR CUTTING OFF STANDBY POWER AND METHOD FOR CONTROLLING THEREOF, filed on Aug. 5, 2009) and in International Patent Application No. PCT/KR2010/001388, claiming priority from the Korean Patent Application No. 2009-72016 (International publication No. WO2010/101436, published on Sep. 10, 2010). 
     The standby power cut-off device disclosed in Korean Patent Application No. 2009-72016 includes a striker that is movable toward a side as a knob switch for powering on or off an electronic product is pressed; a striker contact fixed at a side of the striker to cause a contact point and another contact point of a power cable going to a power supply device of the electronic product to come into contact with or be separated from each other; a core spaced apart from the striker by a predetermined interval, the core including a magnet for maintaining contact between the contact point and the another contact point by attracting the striker, which moves toward the side upon pressing of the knob switch, by a magnetic force thereof; and a solenoid for causing the contact point and the another contact point to be separated from each other by generating a repulsive force with respect to the magnetic force if the electronic product is powered off, and for causing the contact point and the another contact point to come into contact with each other if the electronic product is powered on. 
     In addition, the standby power cut-off device disclosed in Korean Patent Application No. 2009-72016 further includes a tack knob engaged with the knob switch for receiving a cut off operation and for delivering a predetermined control signal at the time of performing the cut off operation to cut off standby power to a controller. 
     The present invention may include a recording medium storing a computer readable program including the standby power cut-off system defined as described above, a control method thereof, and a control program for performing the control method. 
     The standby power cut-off system configured to autonomously cut off the power so that the waste of the standby power is reduced, and the control method thereof may be configured or operated according to an embodiment of the present invention. While the invention has been described in connection with specific embodiments, various modifications may be possible without departing from the scope of the present invention. Therefore, the scope of the invention is not determined by the embodiments described above, but it should be defined as in the appended claims and the equivalents thereto. 
     Although the configuration and the operation according to an embodiment of the present invention may be made as described above, and the invention has been described in connection with specific embodiments, various modifications may be possible without departing from the scope of the present invention.