Abstract: A method and a system for locating objects in a defined area, such as for locating animals in a pen, wherein each segment of the defined area is projected by a narrow angle projection; and the projection is modulated, the modulation including the location of the segment being projected. A self-location-unit is attached to each object for receiving the projection, decoding the modulation having the self-location segment, and transmitting the self-location. A receiver receives each transmission from each self-location-unit, and stores each object's location segment. The system has at least one projector which periodically scans at least part of the defined area, and produces the narrow angle projection that is modulated with information about the location that is being projected. At least one stationary unit receives the self-location information from each object's self-location-unit and displays and/or stores the received locations.

Abstract: An NIR spectroscopy fluid analyzing system using a series of LED's, each having its own preselected center wavelength, as illumination sources. These wavelengths have overlapping spectral widths, such that the measurement covers a broad spectrum. The LED's illuminate the fluid sample sequentially, and subsequently the transmission absorbance through the sample and the reflectance or scattering from the sample is measured for the wavelength range of each LED. The measurements are performed using photodetectors. The concentrations of component parts of the fluid are expressed in the form of a polynomial, which is a function of the measured transmitted and/or reflected intensities, and of empirical coefficients, which are extracted by prior statistical analysis on measured intensities obtained from a large number of test samples having known concentrations of the component. A novel sample chamber, capable of performing optical absorption measurements on a flowing sample of fluid, is described.

Abstract: A medical analysis system for measuring properties and constituents of urine. The system includes a toilet unit mountable on a toilet bowl, readily attachable and detachable therefrom. The toilet unit includes a collection and sampling sub-unit for collecting and measuring the characteristics of urine and an electronics sub-unit for data collection and processing of the measured characteristics. The toilet unit also includes a communications link for data transfer between the collection and sampling and electronics sub-units. It also includes a means for removably fastening the collection and sampling sub-unit inside a toilet bowl, permitting ready attachment and removal of the toilet unit from a toilet bowl as desired. A wall unit, having a communications link for data transfer between the wall and toilet units, also includes means for storing and further processing the data for determining if changes have occurred in the measured characteristics of urine over time.

Abstract: A system for identifying a ruminant, which is being milked. The system includes a transmitter attached to a hind leg of the ruminant and the transmitter transmits a predefined signal, which identifies the ruminant to which the transmitter is attached. The system includes at least one teat cup on which is attached an antenna to receive the signal with which to identify the animal. The teat cup is positionable on the ruminant's teat. A method for using the system is taught as is a teat cup having an antenna fixed thereon.

Abstract: An NIR spectroscopy fluid analyzing system using a series of LED's, each having its own preselected center wavelength, as illumination sources. These wavelengths have overlapping spectral widths, such that the measurement covers a broad spectrum. The LED's illuminate the fluid sample sequentially, and subsequently the transmission absorbance through the sample and the reflectance or scattering from the sample is measured for the wavelength range of each LED. The measurements are performed using photodetectors. The concentrations of component parts of the fluid are expressed in the form of a polynomial, which is a function of the measured transmitted and/or reflected intensities, and of empirical coefficients, which are extracted by prior statistical analysis on measured intensities obtained from a large number of test samples having known concentrations of the component. A novel sample chamber, capable of performing optical absorption measurements on a flowing sample of fluid, is described.