Abstract:
A multi channel and wide-angle observation system includes at least two lens modules, at least two polarization units, at least two polarization control units, at least two transmittance control units and a spectroscope to form a multiple structure, which utilizes the light polarization characteristics to control the light propagation, to control switching different channel to form an optical image in accordance with the timing control unit, and then to synthesize the images by an image processing unit. Since each channel of the system has different visual angles for capturing images, a wide-angle image can be got via the image synthesis and a light transmittance adjustment cab be processed via the transmission rate control module, so as to adjust the light intensity from different incident directions to balance the vision lightness of the wide-angle image.
Abstract:
A proportional electromagnet includes a cylindrical shell, first and second covers connected to two ends of the shell by riveting, a metal core inserted through an axial defined in the second cover and formed with a first section located in the shell and a second section located outside the shell, a coil unit provided between the shell and the metal core, a supporting element provided on the first section of the metal core, a bushing provided on the second section of the metal core, a copper ring provided on the first section of the metal core to improve magnetic thrust of the proportional electromagnet, a stop provided on the first section of the metal core, and a magnetic shield provided between the first section of the metal core and the coil unit to direct magnetic flux toward the supporting element and the metal core to stably drive the metal core.
Abstract:
The present invention provides an apparatus for fetching optical images. Images from multiple channels are obtained. A device is used to automatically switch the images. The switching is based on time-sharing multiplexing (TSM). Thus, the images are formed on another device. The images are then integrated and displayed to be used in an optical vehicle safety assistant system.
Abstract:
A proportional electromagnet includes a cylindrical shell, first and second covers connected to two ends of the shell by riveting, a metal core inserted through an axial defined in the second cover and formed with a first section located in the shell and a second section located outside the shell, a coil unit provided between the shell and the metal core, a supporting element provided on the first section of the metal core, a bushing provided on the second section of the metal core, a copper ring provided on the first section of the metal core to improve magnetic thrust of the proportional electromagnet, a stop provided on the first section of the metal core, and a magnetic shield provided between the first section of the metal core and the coil unit to direct magnetic flux toward the supporting element and the metal core to stably drive the metal core.
Abstract:
The invention discloses a leaky-wave dual-antenna system comprising a transmitting antenna array and a receiving antenna array. The transmitting antenna array comprises plural first microstrips and plural corresponding first differential circuits, and each of the first differential circuit matches the corresponding first microstrip by a L-type matching network; the receiving antenna array comprises plural second microstrips and plural corresponding second differential circuits, and each of the second differential circuit matches the corresponding second microstrip by a L-type matching network. A first end and a second end of each of the first differential circuits are respectively connected to the corresponding first microstrip; a third end and a fourth end of each of the second differential circuits are respectively connected to the corresponding second microstrip.
Abstract:
A hydraulic brake system includes a body with cavities, a vacuum brake booster port, a first caliber port and a channel system defined therein. An accumulator is located in a first one of the cavities. A first proportional solenoid valve is located in a second one of the cavities. A traction control valve is located in a third one of the cavities. The channel system is connected to the accumulator, the first proportional solenoid valve and the traction control valve via the first, second and third cavities. The channel system is further connected to the vacuum brake booster port and the first caliber port. The vacuum brake booster port, the accumulator, the first proportional solenoid valve, the traction control valve and the channel system are used together to control brake fluid to exert a first baking force on the first caliber port.
Abstract:
A hydraulic brake system includes a body with cavities, a vacuum brake booster port, a first caliber port and a channel system defined therein. An accumulator is located in a first one of the cavities. A first proportional solenoid valve is located in a second one of the cavities. A traction control valve is located in a third one of the cavities. The channel system is connected to the accumulator, the first proportional solenoid valve and the traction control valve via the first, second and third cavities. The channel system is further connected to the vacuum brake booster port and the first caliber port. The vacuum brake booster port, the accumulator, the first proportional solenoid valve, the traction control valve and the channel system are used together to control brake fluid to exert a first baking force on the first caliber port.
Abstract:
A pedestrian detector includes an image-taking mechanism and an image analyzer. The image-taking mechanism is provided on a vehicle and used to take an image in front of the vehicle. The image analyzer is connected to the image-taking mechanism and used to receive the image from the image-taking mechanism and analyze the image to determine whether the image conforms to a pedestrian to determine whether there is a pedestrian in front of the vehicle.
Abstract:
A pedestrian detection system and method includes: dividing an image to a plurality of granules, and counting magnitude difference value of each granule in diagonal orientation to obtain features of HOGG. And the HOGG and the HOG captured can work together to improve the detection rate and reduce the false alarm rate, which is the ultimate goal of the vision based pedestrian detection.
Abstract:
A processing method for radar signal with dual pulse repetition frequency, comprising: generating a first transmission signal and a second transmission signal, and perform a transmission process; reflecting a first echo signal and a second echo signal from an object, and converting the first transmission signal and the second transmission signal to a frequency domain information by using 2D (Two Dimension) fast Fourier transform (FFT); and filtering noise in the frequency domain information, and performing a calculation program by using a algorithm to obtain Doppler shift of the object. Thereby, the processing method of the present invention can overcome the bad operation ability of the lower hardware and advance the radar target detection speed restrictions.