TH24327Y - Object detection system - Google Patents

Abstract

OCR 17/7/2024 This invention relates to an object detection system. The key feature of this device is that it is unaffected by radio frequency interference and does not cause signal interference to other electronic devices and computers in the same environment. The system is small, energy-efficient, and user-controlled via wireless communication devices using both radio frequency and optical frequency. Data transmission utilizes color changes from LEDs adjusted according to the received signal. It employs robust error correction codes and a data verification and correction system to reference stored data in a database. This data is then displayed to the user for verification, preventing the substitution of genuine property or counterfeit items—a significant problem in some practical applications.

Claims (10)

OCR 17/7/2567 1. The object detection system consists of a photoelectric signal generator, which is installed on the object to be detected; a photoelectric signal detector, which detects the light signal from the photoelectric signal generator; an image data storage unit, which is connected to the photoelectric signal detector and stores the image data, with a portion of the data and the time data related to the detection stored as reference data; a processing unit, which is connected to the photoelectric signal detector and processes the image data and detects differences between the stored and processed image data; the photoelectric signal generator location (132); and an output unit (133), which is connected to the processing unit and displays the object location data. A unique characteristic of this system is that it includes a control unit for the photoelectric signal generator, which receives control data, including at least the light signal activation data, light signal deactivation data, and light intensity adjustment data. This unit consists of a memory unit, which stores the operating mode data, and a control input unit, which receives user-defined operating data. 2. An object detection system as described in Patent 1, where the control unit of the optical signal generator receives operational information in the form of an electrical potential difference signal and converts the electrical potential difference signal into an electrical current signal, which is then supplied to the optical signal generator. The light intensity from the optical signal generator increases or decreases according to the value of this signal. 3. An object detection system as per claim 1 or 2, whereby the control unit of the optical signal generator, comprising an additional communication unit and a control input unit, is connected to the control unit of the optical signal generator via such communication unit. 4. The object detection system as per claim 3, whereby the communication unit is a data communication unit via a computer network. 5. An object detection system as described in claims 1 through 4, whereby the control unit of the optical signal generator is supplemented by a control data encoding unit. 6. The object detection system as per claim 5, whereby the control data encoding unit encodes using parity codes, convolutional codes, or BCH codes. 7. An object detection system as described in claims 1 through 6, whereby a photodetector detects the position of a photodetector from image data and changes the detection position when the photodetector is not found in the image data. 8. An object detection system as per claim 1 or 7, where the photodetector filters the image signal at different frequencies according to the equation (equation), where I is the image data obtained from the photodetector, If is the image obtained after filtering the image intensity, and K is the matrix used to filter the color of the image, which is a matrix that makes the light intensity of the light-emitting device stronger than the other light intensity around the transmitting device. 9. An object detection system as per claim 8, where an optical detector modifies matrix K when an object changes position. 10. An object detection system as per claim 1, 7, 8 or 9 in which the optical sensor reduces the resolution of the image and the number of colors, adjusting the resulting image to a black and white image (320) according to equation (equation), where Ib is the black and white image.