Abstract: A tissue dispenser, a method, system, and a sensor unit for detecting level of a consumable tissue product (201, 301) in a tissue dispenser (103, 106) located in a washroom. This includes provided a sensor unit utilizing two sensor elements (420, 430) each arranged to measure light reflected from a reflection field located on the tissue product, reflected directly from the tissue product, or measure the absence of the tissue product. Data from the sensor elements are wirelessly transmitted to a server (901) for further handling, such as for instance notification to a janitor in charge of service of the washroom.

Abstract: The present disclosure relates to a cable handling arrangement configured to extend and retract a charging cable for a vehicle from and to a charger, the handling arrangement comprising a charging cable configured to conduct charging current from a charger to the vehicle, a first resilient element attached to the cable at a first attachment point, wherein a first cable loop of the cable is formed between an anchor attachment point and the first attachment point, a second resilient element attached to the cable at a second attachment point, wherein a second cable loop of the cable is formed between the first attachment point and second attachment point.

Abstract: The present disclosure relates to method performed by a battery charger configured to notify an electrically connected vehicle (120) about status of the battery charger, the method comprising measuring output (O) of the battery charger to the electrically connected vehicle, determining a charging mode (CM) of the battery charger, determining pulse characteristics using the measured output and the determined charging mode (CM), generating a pulse train using the determined pulse characteristics, wherein the pulse train is indicative of the status of the battery charger.

Abstract: A method performed by a control unit for detecting performance deterioration of components comprised in a coupling chain connecting a power grid to a vehicle, wherein the coupling chain at least comprises a supply unit configured to charge the vehicle, the method comprising measuring amplitude of a first voltage at a first point of the coupling chain, measuring amplitude of a second voltage at a second point of the coupling chain, measuring a first current flowing through the coupling chain, estimating an impedance using the measured amplitude of the first voltage, the amplitude of the second voltage and the first current, detecting that performance deterioration of components comprised in the coupling chain has occurred by comparing the estimated impedance to a reference impedance, wherein the deterioration of components is detected if the estimated impedance is equal to or greater than the reference impedance.

Abstract: A tissue dispenser, a method, system, and a sensor unit for detecting level of a consumable tissue product (201, 301) in a tissue dispenser (103, 106) located in a washroom. This includes provided a sensor unit utilizing two sensor elements (420, 430) each arranged to measure light reflected from a reflection field located on the tissue product, reflected directly from the tissue product, or measure the absence of the tissue product. Data from the sensor elements are wirelessly transmitted to a server (901) for further handling, such as for instance notification to a janitor in charge of service of the washroom.

Abstract: A solution for detecting level of a consumable tissue product (201, 301) in a tissue dispenser (103, 106) located in a washroom. This is provided in a number of aspects such as a tissue dispenser, a method, system, and a sensor unit utilizing two sensor elements (420, 430), each arranged to measure light reflected from a reflection field located on the tissue product, reflected directly from the tissue product, or measure the absence of the tissue product. Data from the sensor elements are wirelessly transmitted to a server (901) for further handling, such as for instance notification to a janitor in charge of service of the washroom.

Abstract: A method for measuring a capacitance using a capacitance meter. The capacitance meter includes an AC power source with a controllable frequency which is fed to a capacitor to measure its capacitance. A first measurement of the capacitance is performed by the capacitance meter using a first frequency. When the first measurement of the capacitance indicates the capacitance is below a threshold capacitance a lower capacitance measurement is performed in the capacitance meter, using a second measurement of the capacitance using a second frequency. When the first measurement of the capacitance indicates the capacitance is above a threshold capacitance, a higher capacitance measurement is performed in the capacitance meter, using a second measurement of the capacitance using a third frequency, the third frequency being lower than the second frequency.

Abstract: A wireless sensor device (10) for a high-voltage environment, which device (10) comprises a housing (12), a control unit (18) for monitoring one or more variable(s) (T) and a power supply unit (20), wherein the housing (12) is designed such that an electric field (E) is minimized and the communication unit (16) is arranged partly inside the housing (12).

Abstract: A solution for detecting level of a consumable tissue product (201, 301) in a tissue dispenser (103, 106) located in a washroom. This is provided in a number of aspects such as a tissue dispenser, a method, system, and a sensor unit utilizing two sensor elements (420, 430), each arranged to measure light reflected from a reflection field located on the tissue product, reflected directly from the tissue product, or measure the absence of the tissue product. Data from the sensor elements are wirelessly transmitted to a server (901) for further handling, such as for instance notification to a janitor in charge of service of the washroom.

Abstract: A method for measuring a capacitance using a capacitance meter. The capacitance meter includes an AC power source with a controllable frequency which is fed to a capacitor to measure its capacitance. A first measurement of the capacitance is performed by the capacitance meter using a first frequency. When the first measurement of the capacitance indicates the capacitance is below a threshold capacitance a lower capacitance measurement is performed in the capacitance meter, using a second measurement of the capacitance using a second frequency. When the first measurement of the capacitance indicates the capacitance is above a threshold capacitance, a higher capacitance measurement is performed in the capacitance meter, using a second measurement of the capacitance using a third frequency, the third frequency being lower than the second frequency.