Abstract: The present disclosure is related to systems and methods for indoor positioning. The method includes obtaining a first location of a subject at a first time point. The method also includes determining one or more motion parameters associated with the subject at least based on one or more sensors carried by the subject. The method further includes determining, based on the first location of the subject and the one or more motion parameters associated with the subject, a second location of the subject at a second time point after the first time point. The method still further includes adjusting, at least based on surroundings information associated with the subject at the second time point, the second location of the subject to determine a target location of the subject.

Abstract: Disclosed herein is a flow path switcher, comprising a valve core, a shell and a base. The shell comprises a valve seat A, a valve seat B, a channel of valve seat A, a channel of valve seat B, an outlet and an inlet. The base comprises a valve seat C, the valve seat A and the valve seat B are located on one side of the valve core and the valve seat C is located on the other side of the valve core. Also a liquid detergent delivery device with the flow path switcher is disclosed, comprising a main channel, a piston, a one-way valve D, a one-way valve E, a detergent box A and a Venturi negative pressure generator.

Abstract: Disclosed herein is a flow path switcher, comprising a valve core, a shell and a base. The shell comprises a valve seat A, a valve seat B, a channel of valve seat A, a channel of valve seat B, an outlet and an inlet. The base comprises a valve seat C, the valve seat A and the valve seat B are located on one side of the valve core and the valve seat C is located on the other side of the valve core. Also a liquid detergent delivery device with the flow path switcher is disclosed, comprising a main channel, a piston, a one-way valve D, a one-way valve E, a detergent box A and a Venturi negative pressure generator.

Abstract: A detergent dosing controller that is convenient to use and has better effect is disclosed herein. One side of the main passage is a water inlet (101), another side of the main passage is outlet (102) connecting to liquid inlet of washing bucket, and valves A(2), B(3), C(4), D(5), pump (6) and nozzle (7) are equipped. The inlet of valve A connects to the bypass orifice A(a) of the main passage, inlet of valve B connects to liquid storage tank of detergent A, outlets of valve A and valve B connect to inlet of valve C, inlet of valve D connects to liquid storage tank of detergent B, outlets of valve C and valve D connect to inlet of the pump, outlet of the pump connects to bypass orifice B(b) of the main passage, and for the relative location of bypass orifices A and B of main passage, bypass orifice A is relatively close to the inlet of main passage, bypass orifice B is relatively close to the outlet of main passage, the nozzle connects to main passage by concatenation and between bypass orifices A and B.

Abstract: A detergent dosing controller that is convenient to use and has better effect is disclosed herein. One side of the main passage is a water inlet (101), another side of the main passage is outlet (102) connecting to liquid inlet of washing bucket, and valves A(2), B(3), C(4), D(5), pump (6) and nozzle (7) are equipped. The inlet of valve A connects to the bypass orifice A(a) of the main passage, inlet of valve B connects to liquid storage tank of detergent A, outlets of valve A and valve B connect to inlet of valve C, inlet of valve D connects to liquid storage tank of detergent B, outlets of valve C and valve D connect to inlet of the pump, outlet of the pump connects to bypass orifice B(b) of the main passage, and for the relative location of bypass orifices A and B of main passage, bypass orifice A is relatively close to the inlet of main passage, bypass orifice B is relatively close to the outlet of main passage, the nozzle connects to main passage by concatenation and between bypass orifices A and B.

Abstract: A simply structured and conveniently used detergent release controller capable of avoiding detergent from solidifying and preventing use has a main channel. One terminal of the main channel is an inlet of a fluid, and the other terminal of the main channel is an outlet capable of being connected with a water outlet of a washing barrel. The detergent release controller is provided with multiple valves including valve A, valve B, valve C, valve D, a liquid collecting cavity, and a Venturi negative pressure generator. An inlet of valve A is connected with a bypass of the main channel. An inlet of valve B is connected with a storage tank of detergent A. The present disclosure is applicable to apparatuses such as clothes washing machines and dish washing machines.

Abstract: A simply structured and conveniently used detergent release controller capable of avoiding detergent from solidifying and preventing use has a main channel. One terminal of the main channel is an inlet of a fluid, and the other terminal of the main channel is an outlet capable of being connected with a water outlet of a washing barrel. The detergent release controller is provided with multiple valves including valve A, valve B, valve C, valve D, a liquid collecting cavity, and a Venturi negative pressure generator. An inlet of valve A is connected with a bypass of the main channel. An inlet of valve B is connected with a storage tank of detergent A. The present disclosure is applicable to apparatuses such as clothes washing machines and dish washing machines.