Abstract: A firmware upgrade apparatus and method are disclosed. A firmware upgrade apparatus according to some embodiments of the present invention includes access points, a relay configured to upload firmware data to the access point, a node configured to upload the firmware data to the relay, and an over-the-air (OTA) access point configured to upload the firmware data to the node.

Abstract: The present invention relates to a pharmaceutical composition for prevention or treatment of an allergic disease comprising a mixed extract of two or more selected from the group consisting of Asiasarum root, Platycodon root, and Cinnamomi ramulus as an active ingredient; a method for prevention or treatment of an allergic disease using the pharmaceutical composition; and a health functional food and a feed composition for improvement of an allergic disease. The composition and method of the invention can specifically inhibit the differentiation of Th2 cells and thus can be effectively used as a composition for prevention or treatment of an allergic disease.

Abstract: A filter for controlling a pH of purified water is disclosed. The pH-controlling filter according to an aspect of the present disclosure may include a water permeable filter having a hollow formed in a center of a cross-section from one end to the other end; a lower stopper closing a lower end of the water permeable filter, a filling unit inserted into the hollow of the water permeable filter to form an inner space, the filling unit having an inlet through which the purified water passing through the water permeable filter flows into the inner space and an outlet through which the purified water passing through the inner space flows out; and control particles filled in the inner space of the filling unit to adjust a pH of the purified water passing through the inner space of the filling unit and comprising OH group-generating particles configured to supplement the purified water passing through the inner space with OH groups.

Abstract: Provided is a water purifier comprising: a filter unit filtering water supplied from a water source, including a reverse osmosis filter; a discharge unit discharging water filtered by the filter unit externally; a flushing portion connected to the reverse osmosis filter; and a controller configured to flow water filtered by the reverse osmosis filter to the flushing portion, and to flush the reverse osmosis filter.

Abstract: Provided is a water purifier that includes a filtering unit for producing purified water by filtering influent water; a TDS measuring unit for measuring the total dissolved solids (TDS) in the water flowing into the filtering unit; a purified water passage through which the purified water is discharged; a concentrated water passage through which concentrated water, filtered by the filtering unit, is discharged; a concentrated water flow control valve for controlling the flow rate of the concentrated water discharged through the concentrated water passage; and a control unit for adjusting the degree of opening and closing of the concentrated water control valve, on the basis of the TDS and the pressure of the water flowing into the filtering unit.

Abstract: Provided is a water purifier that includes a filtering unit for producing purified water by filtering influent water; a TDS measuring unit for measuring the total dissolved solids (TDS) in the water flowing into the filtering unit; a purified water passage through which the purified water is discharged; a concentrated water passage through which concentrated water, filtered by the filtering unit, is discharged; a concentrated water flow control valve for controlling the flow rate of the concentrated water discharged through the concentrated water passage; and a control unit for adjusting the degree of opening and closing of the concentrated water control valve, on the basis of the TDS and the pressure of the water flowing into the filtering unit.

Abstract: According to one embodiment of the present invention, a control method for a water purifier comprises the steps of: filtering inflowing water so as to generate purified water; extracting the generated purified water; measuring the flow rate of the purified water extracted per unit time; flushing a filter part by using purified water generated in the filter part, when the extraction of the purified water is complete; and draining the flushed water to the outside through a residential water outlet of the filter part, wherein, in the purified water generation step, discharging of residential water generated in the purified water generation step is blocked according to the accumulated flow rate during a one-time extraction of the purified water, calculated on the basis of the flow rate of the purified water.

Abstract: A water purifier according to an embodiment of the present invention comprises: a filtering unit for producing purified water by filtering influent water; a TDS measuring unit for measuring the total dissolved solids (TDS) in the water flowing into the filtering unit; a purified water passage through which the purified water is discharged; a concentrated water passage through which concentrated water, filtered by the filtering unit, is discharged; a concentrated water flow control valve for controlling the flow rate of the concentrated water discharged through the concentrated water passage; and a control unit for adjusting the degree of opening and closing of the concentrated water control valve, on the basis of the TDS and the pressure of the water flowing into the filtering unit.

Abstract: Provided is a water purifier comprising: a filter unit filtering water supplied from a water source, including a reverse osmosis filter; a discharge unit discharging water filtered by the filter unit externally; a flushing portion connected to the reverse osmosis filter; and a controller configured to flow water filtered by the reverse osmosis filter to the flushing portion, and to flush the reverse osmosis filter.

Abstract: A water purifier comprising: a filter unit comprising at least one filter filtering water to generate purified water; a flow rate sensor measuring a flow rate of the water; a concentrated water channel discharging concentrated water, having been filtered by the filter unit; an extraction unit extracting the purified water; a flow rate control valve controlling a flow rate of purified water; an opening and closing degree measurement unit, measuring a degree of opening and closing of the flow rate control valve; a concentrated water ratio calculation unit, calculating a ratio between purified water and concentrated water, according to the degree of opening and closing of the flow rate control valve; and a controller, using the flow rate of water and the calculated ratio between purified water and concentrated water, to calculate amounts of water used, integrating the calculated amounts of water, and calculating a lifespan (remaining life) of the filter.

Abstract: A water purifier according to an embodiment of the present invention comprises: a filtering unit for producing purified water by filtering influent water; a TDS measuring unit for measuring the total dissolved solids (TDS) in the water flowing into the filtering unit; a purified water passage through which the purified water is discharged; a concentrated water passage through which concentrated water, filtered by the filtering unit, is discharged; a concentrated water flow control valve for controlling the flow rate of the concentrated water discharged through the concentrated water passage; and a control unit for adjusting the degree of opening and closing of the concentrated water control valve, on the basis of the TDS and the pressure of the water flowing into the filtering unit.

Abstract: A water purifier comprising: a filter unit comprising at least one filter filtering water to generate purified water; a flow rate sensor measuring a flow rate of the water; a concentrated water channel discharging concentrated water, having been filtered by the filter unit; an extraction unit extracting the purified water; a flow rate control valve controlling a flow rate of purified water; an opening and closing degree measurement unit, measuring a degree of opening and closing of the flow rate control valve; a concentrated water ratio calculation unit, calculating a ratio between purified water and concentrated water, according to the degree of opening and closing of the flow rate control valve; and a controller, using the flow rate of water and the calculated ratio between purified water and concentrated water, to calculate amounts of water used, integrating the calculated amounts of water, and calculating a lifespan of the filter.

Abstract: According to one embodiment of the present invention, a control method for a water purifier comprises the steps of: filtering inflowing water so as to generate purified water; extracting the generated purified water; measuring the flow rate of the purified water extracted per unit time; flushing a filter part by using purified water generated in the filter part, when the extraction of the purified water is complete; and draining the flushed water to the outside through a residential water outlet of the filter part, wherein, in the purified water generation step, discharging of residential water generated in the purified water generation step is blocked according to the accumulated flow rate during a one-time extraction of the purified water, calculated on the basis of the flow rate of the purified water.

Abstract: The present invention relates to a rapidly disintegrable tablet for oral administration, which disintegrates in the oral cavity within 60 seconds, consisting essentially of (i) a therapeutically effective amount of an active ingredient, (ii) spray-dried mannitol, of which at least 80% has an average particle size over 100 &mgr;m, (iii) crospovidone, and (iv) one or more pharmaceutically acceptable excipients, the tablet containing no microcrystalline cellulose.