Abstract: An information processing system according to an embodiment is an information processing system that has a detection unit that has a sensor that is mounted on a toilet where a bowl part that receives excrement is formed where a plurality of elements are linearly arranged to detect dropping feces, a feces image acquisition unit that acquires a feces image that is based on information that is acquired in time series by the detection unit, and a determination unit that determines an amount of feces from the feces image, wherein the determination unit determines an amount of feces based on a length of feces in a dropping direction thereof on the feces image and a property of feces.

Abstract: A toilet seat apparatus according to an embodiment is a toilet seat apparatus to be placed on an upper part of a toilet bowl having a bowl unit that receives excrement, the toilet seat apparatus including: a toilet seat on which a user sits; a light emitting unit including one or more light emitting elements that emit light in a front direction; a light receiving unit including a light receiving element that receives light; and a housing in which the light emitting unit and the light receiving unit are arranged, in which the one or more light emitting elements are arranged in parallel with the light receiving unit or in front of the light receiving unit in a side view or a top view of the housing.

Abstract: An excrement management system according to an embodiment includes: a closet bowl in which a bowl part for receiving excrement is formed; a light emitting unit configured to emit light toward an inner part of the closet bowl; a light receiving unit comprising an image sensor configured to receive light; a cloud server and an edge server configured to analyze light reception data received by the light receiving unit; a first communication device configured to transmit the light reception data to the cloud server; and a second communication device configured to transmit the light reception data to the edge server. The cloud server analyzes the light reception data to determine a characteristic of excrement, and the edge server analyzes the light reception data to determine whether to transmit the light reception data to the cloud server by the first communication device.

Abstract: A toilet seat apparatus according to an embodiment is a toilet seat apparatus to be placed on an upper part of a toilet bowl having a bowl unit that receives excrement, the toilet seat apparatus including: a toilet seat on which a user sits; a light emitting unit including one or more light emitting elements that emit light in a front direction; a light receiving unit including a light receiving element that receives light; and a housing in which the light emitting unit and the light receiving unit are arranged, in which the one or more light emitting elements are arranged in parallel with the light receiving unit or in front of the light receiving unit in a side view or a top view of the housing.

Abstract: A toilet seat apparatus according to an embodiment is a toilet seat apparatus to be placed on an upper part of a toilet bowl, the toilet seat apparatus including: a toilet seat on which a user sits; a light emitting unit that emits light; and a light receiving unit that receives light; first memory that stores data received by the light receiving unit; and an arithmetic processing device that executes transfer of data received by the light receiving unit to the first memory, and analysis and deletion of data stored in the first memory, in which the arithmetic processing device transfers the data received by the light receiving unit to the first memory, and deletes the data temporarily stored in the first memory when the data has been analyzed to be data that is not data based on the reflected light from falling feces.

Abstract: A toilet seat apparatus according to an embodiment includes: a toilet seat on which a user sits; a light emitting unit including a light emitting element that emits light; a light receiving unit including a light receiving element that receives light; and a control unit that controls energization of the light emitting element and application of voltage to the light receiving element, in which the control unit performs light reception control including transmitting a control instruction to open an electronic shutter to the light receiving element and energizing the light emitting element so as to permit reception of the reflected light from feces, and performs control of setting an interval from a start of execution of one light reception control to execution of light reception control subsequent to the one light reception control, to 0.2 milliseconds or more.

Abstract: A toilet seat apparatus according to an embodiment is a toilet seat apparatus to be placed on an upper part of a toilet bowl, the toilet seat apparatus including: a toilet seat on which a user sits; a light emitting unit that emits light; and a light receiving unit that receives light; first memory that stores data received by the light receiving unit; and an arithmetic processing device that executes transfer of data received by the light receiving unit to the first memory, and analysis and deletion of data stored in the first memory, in which the arithmetic processing device transfers the data received by the light receiving unit to the first memory, and deletes the data temporarily stored in the first memory when the data has been analyzed to be data that is not data based on the reflected light from falling feces.

Abstract: A toilet seat device includes a main part, a toilet seat, a load sensor, a controller, and a memory. The toilet seat includes a seating part where a user is seated, and a support leg part supporting a load applied to the seating part. The load sensor is provided in the support leg part and detects the load applied to the support leg part. The controller performs at least a body weight measurement of the user based on a detection result of the load sensor. The controller includes a register mode and a normal-use mode in the body weight measurement. The register mode includes determining an estimated value for estimating the total body weight of the user from the seated load. The normal-use mode includes estimating a load value relating to the total body weight of the user based on the estimated value.

Abstract: A toilet seat device includes a main part, a toilet seat, a load sensor, a controller, and a memory. The toilet seat includes a seating part where a user is seated, and a support leg part supporting a load applied to the seating part. The load sensor is provided in the support leg part and detects the load applied to the support leg part. The controller performs at least a body weight measurement of the user based on a detection result of the load sensor. The controller includes a register mode and a normal-use mode in the body weight measurement. The register mode includes determining an estimated value for estimating the total body weight of the user from the seated load. The normal-use mode includes estimating a load value relating to the total body weight of the user based on the estimated value.