A laundry washing machine and method of operating same for the purpose of automatically determining a soil level of a laundry load from two turbidity readings taken before a washing cycle commences, such as during a pre-wash, filling phase. The machine is configured to detect a load size, add a first amount of water and take a first turbidity reading. A first dose of detergent is then added, a second amount of water added and the wetted load is gently tumbled/agitated before taking a second turbidity reading. A value based upon a ratio of the turbidity readings can determine the soil level of the load in order to choose a wash-related parameter, such as how much detergent to use for the subsequent complete wash cycle and/or the duration thereof.

An ozone and/or hydroxyl laundry system that injects ozone and/or hydroxyls into the chemical injection system in order to allow the system to inject ozone and/or hydroxyls as other cleaning chemicals are injected into the washer. This allows ozone and/or hydroxyls to be injected through the wash cycle rather than just during the initial fill phase and additional avoids the expense and maintenance of adding ozone and/or hydroxyls recirculation plumping to an ozone and/or hydroxyls laundry system. Accordingly, ozone and/or hydroxyl levels may be maintained at superior levels throughout the wash cycle.

A domestic laundry-washing appliance including an optical measuring device for obtaining measured values which are representative of a spectral transmission signature of a washing liquid used during operation of the laundry-washing appliance for cleaning textiles, and a control device which is adapted to categorise a cleaning agent contained in the washing liquid in respect of its chemical properties on the basis of the spectral transmission signature obtained, and to control the operation of the laundry-washing appliance in dependence on the categorisation result. The categorisation result can indicate, for example, a distinction between a heavy-duty detergent containing bleach and another bleach-free detergent.

A control method for a clothing treatment apparatus. The clothing treatment apparatus includes an air washing device for performing air washing on clothing. The control method includes: obtaining the material of clothing; obtaining the type of a clothing detergent; obtaining the type of a stain on the clothing; and determining a parametric range of air washing according to the material of the clothing, the type of the clothing detergent, and the type of the stain on the clothing. The embodiments allow clothing to be subjected to air washing treatment within an optical parametric range, i.e., a detergent can exert an activation function to the greatest extent, and also allows a stain to be removed and cleaned within the most suitable parametric range to improve the clothing decontamination capability, thereby improving a clothing treatment effect and improving user experience.

A method for operating a water-bearing household appliance for treating articles, in particular a dishwasher or washing machine, the water-bearing household appliance including a treatment chamber for treating the articles with a washing liquor and a dosing system for dispensing a dosing-amount of detergent provided by a dosing unit, the method comprising: selecting one of a plurality of different treatment cycles, controlling the water-bearing household appliance to perform the selected treatment cycle, actuating the dosing system to dispense the dosing-amount of detergent according to the selected treatment cycle, detecting a sensor signal of the dispensed dosing-amount of detergent, adjusting the selected treatment cycle as a function of the detected sensor signal, and controlling the water-bearing household appliance to perform the adjusted treatment cycle.

The invention relates to a program-controlled apparatus (1) for washing items that is equipped with a water purification system (8) for purifying the wash liquor by removing detergent and suspended soil, which purification system (8) utilizes addition of flocculant, wherein the amount of flocculant that is added is controlled to minimize the total amount of flocculant used without compromising the efficacy of the purification treatment.

A washing machine includes a cabinet, a drum inside the cabinet and having a washing chamber formed therein, and a detergent supply device configured to supply a detergent to the washing chamber, the detergent supply device including a detergent container having a detergent accommodation space formed therein to accommodate the detergent to be supplied; and a detergent pump detachably coupled to the detergent container, the detergent pump to pump a detergent accommodated in the detergent accommodation space, the detergent pump including a detecting member to detect an amount of the detergent accommodated in the detergent accommodation space, the detecting member extending forward to be inserted into the detergent accommodation space.

A laundry appliance includes a cabinet defining an opening with a laundry vessel mounted within the cabinet. The laundry vessel defines a treatment chamber. The laundry appliance also includes an electrolytic hypochlorous acid generator upstream of the treatment chamber with respect to a flow of cold water through the laundry appliance and a controller. The controller may be configured for and/or a method of sanitizing the laundry appliance may include opening a valve upstream of the electrolytic hypochlorous acid generator to provide the flow of cold water through the laundry appliance, confirming the presence of the cold water in the laundry appliance after opening the valve, and activating the electrolytic hypochlorous acid generator after confirming the presence of the cold water in the laundry appliance.

An ozone and/or hydroxyl laundry system that injects ozone and/or hydroxyls into the chemical injection system in order to allow the system to inject ozone and/or hydroxyls as other cleaning chemicals are injected into the washer. This allows ozone and/or hydroxyls to be injected through the wash cycle rather than just during the initial fill phase and additional avoids the expense and maintenance of adding ozone and/or hydroxyls recirculation plumping to an ozone and/or hydroxyls laundry system. Accordingly, ozone and/or hydroxyl levels may be maintained at superior levels throughout the wash cycle.

According to various embodiments, a sensor device may comprise: an energy harvester configured to generate electrical energy; an energy storage circuit configured to store the generated electrical energy; a monitoring circuit; a sensor; a communication circuit; and at least one processor, wherein the at least one processor is configured to identify a voltage of the energy storage circuit through the monitoring circuit, operate in a first mode in response to identification that the voltage is equal to or lower than a threshold value, operate in a second mode which consumes more power than the first mode, in response to identification that the voltage exceeds the threshold value, acquire a sensing value through the sensor according to a sensing scheme corresponding to one of the first mode and the second mode, and control the communication circuit to transmit the voltage and the sensing value to another electronic device according to the communication scheme corresponding to one of the first mode and the second mode. Various other embodiments are possible.