Abstract: A warning system for detecting approaching vehicle and method thereof are provided. The system includes a detection unit detecting a relative distance with respect to the approaching vehicle and a driving path of the approaching vehicle; a storage unit storing a warning information; and a processing unit receiving the detection signal to acquire the current time to collision and the current driving path. When the time to collision is equal to or shorter than the predetermined time to collision, and the driving path falls in the warning area, and the driving path fulfills the confirmation condition, the processing unit sends a warning signal. Therefore, a potentially dangerous approaching vehicle is accurately judged, and the warning is correctly sent.

Abstract: A vehicle radar device includes a radar control unit, a first antenna array, a second antenna array, a first circuit board and a second circuit board. The first antenna array is communicatively connected to the radar control unit. The first antenna array includes a plurality of first transmitting elements and a plurality of first receiving elements. The second antenna array is communicatively connected to the radar control unit. The second antenna array includes a plurality of second transmitting elements and a plurality of second receiving elements. The first antenna array is a plurality of circuit board antennas and disposed on the first circuit board. The second antenna array is a plurality of circuit board antennas and disposed on the second circuit board.

Abstract: Provided is a scooter radar detection system for a scooter, including: a control module for controlling operation of the scooter radar detection system; two detection radars flanking a license plate, facing the rear of the scooter, and being in signal connection with the control module; two flash alert units disposed at rear-view mirrors on two sides of the scooter, respectively, and being in signal connection with the control module; and a vibration alert module disposed below a seat and being in signal connection with the control module.

Abstract: A heart rate detection method includes a facial image data acquiring step, a feature points recognizing step, an effective displacement signal generating step and a heart rate determining step. The feature points recognizing step is for recognizing a plurality of feature points, wherein a number range of the feature points is from three to twenty, and the feature points include a center point between two medial canthi, a point of a pronasale and a point of a subnasale of the face. The effective displacement signal generating step is for calculating an original displacement signal, wherein the original displacement signal is converted to an effective displacement signal. The heart rate determining step is for transforming the effective displacement signals of each of the feature points to an effective spectrum, wherein a heart rate is determined from one of the effective spectrums corresponding to the feature points, respectively.

Abstract: An embodiment relates to a curvature measurement apparatus. The apparatus includes a first curvature measurement unit configured to, upon a curvature of an object to be measured being relatively greater than a first curvature, measure the curvature of the object to be measured; and a second curvature measurement unit configured to, upon the curvature of the object to be measured being relatively smaller than a second curvature, measure the curvature of the object to be measured, the second curvature being relatively greater than or equal to the first curvature. The curvature measurement apparatus can improve an accuracy of a curvature of an object to be measured.

Abstract: A tire pressure detector disposed at a wheel, wherein the wheel includes a rim and a tire mounted around the rim, with a pressure space formed between the tire and the rim. The rim includes an air tap connected with the pressure space. The tire pressure detector includes a main body movably disposed in the pressure space and provided with a housing space, and a detection module disposed in the housing space. The detection module further includes a sensing unit for sensing the air pressure in the pressure space and producing a pressure signal. A central processing unit of the detection module receives the pressure signal and wirelessly transmits the pressure signal through the wireless transmission unit. Therefore, vibration and waving issue due to imbalance weight is avoided, thus balancing the wheel.

Abstract: A heart rate detection method includes a facial image data acquiring step, a feature points recognizing step, an effective displacement signal generating step and a heart rate determining step. The feature points recognizing step is for recognizing a plurality of feature points, wherein a number range of the feature points is from three to twenty, and the feature points include a center point between two medial canthi, a point of a pronasale and a point of a subnasale of the face. The effective displacement signal generating step is for calculating an original displacement signal, wherein the original displacement signal is converted to an effective displacement signal. The heart rate determining step is for transforming the effective displacement signals of each of the feature points to an effective spectrum, wherein a heart rate is determined from one of the effective spectrums corresponding to the feature points, respectively.

Abstract: A facial stroking detection method includes a detecting step and a determining step. The detecting step includes a pre-processing step, a feature extracting step and a feature selecting step. In the pre-processing step, an image is captured by an image capturing device, and the image is pre-processed so as to obtain a post-processing image. In the feature extracting step, a plurality of image features are extracted from the post-processing image so as to form an image feature set. In the feature selecting step, a determining feature set is formed by selecting a part of the image features from the image feature set and entered into a classifier. In the determining step, wherein the classifier provides a determining result according to the determining feature set.

Abstract: A mouth and nose occluded detecting method includes a detecting step and a warning step. The detecting step includes a facial detecting step, an image extracting step and an occluded determining step. In the facial detecting step, an image is captured by an image capturing device, wherein a facial portion image is obtained from the image. In the image extracting step, a mouth portion is extracted from the facial portion image so as to obtain a mouth portion image. In the occluded determining step, the mouth portion image is entered into an occluding convolutional neural network so as to produce a determining result, wherein the determining result is an occluding state or a normal state. In the warning step, a warning is provided according to the determining result.

Abstract: A ringer control device includes a power receiving unit, a detection circuit, and a control circuit. The detection circuit is coupled to the power receiving unit and outputs a detection signal. The control circuit is coupled to the detection circuit and includes a trigger unit and a control unit. The trigger unit detects a trigger event. The control unit is coupled to the detection circuit and the trigger unit, and configured to control the detection circuit and determine whether a ringer device is coupled to the power module according to the detection signal, and further determine a category of the ringer device. A control method of the ringer control device is also provided.

Abstract: A method for preventing malicious software from attacking files of a computer system includes the following steps. Whether a file type of a specific file corresponding to an input/output (I/O) request is a to-be-backed-up file type is checked, wherein the to-be-backed-up file type belongs to one of multiple predetermined file types susceptible to malicious software attack. When the file type of the specific file is the to-be-backed-up file type, a backup already tag in a file context tag structure of the specific file is checked. When the backup already tag shows that the specific file has not been backed up, a backup process is performed for the specific file.

Abstract: A programmable battery source architecture includes: a battery module, including a plurality of battery units, and a programmable battery connection circuit coupled to the battery module. The programmable battery connection circuit includes: a matrix intersection line module, electrically coupled to the battery module for forming a plurality of battery connection configurations; a switch group, disposed at each line intersection of the matrix intersection line module, for switching the battery connection configurations; and a control unit, for dynamically controlling the switch group based on a load requirement, for selecting at least a battery connection configuration from the battery connection configurations, and accordingly, the battery module outputting at least an output voltage based on the selected at least a battery connection configuration.

Abstract: A method of building vehicle data in a tire pressure diagnosis tool includes: building owner information in the tire pressure diagnosis tool; entering a vehicle identification number and a tire identification number; and obtaining a tire pressure sensor identification number and a tire environment parameter value, wherein complete linking data pertaining to every owner identity and vehicle status are built in a tire pressure diagnosis tool to not only enable automobile manufacturers and automobile repair shops to effectuate vehicle maintenance and management conveniently, but also provide vehicle identification numbers and tire identification numbers to a competent authority timely and as needed.

Abstract: The present disclosure provides a video stream based live stream interaction method and apparatus, the method includes the following steps: performing image recognition on a received video stream of a streamer, and acquiring feature change information of a featured object in the video stream, thereby generating a corresponding action event; determining a preset response instruction for the action event according to the action event itself; and executing the response instruction to send feedback information to at least one user in a live streaming room in response to the action event. The method and device can automatically complete the interaction with the live broadcast party using image recognition technology and send the interactive notification information to the live broadcast user, thereby improving the interaction between the user and live broadcast party, and enhancing the flexibility of the scheme, enhancing user experience.

Abstract: A vehicle speed radar system and detection method are provided. The radar system is disposed on a vehicle for determining the speed status of a target vehicle. The radar system includes a transmitting unit, a receiving unit, a self speed detection unit, a signal processing unit, and a rational speed determination unit. The transmitting unit sends out a wave source which is reflected by the target vehicle and received by the receiving unit, and a frequency value is acquired. The self speed detection unit acquired a first absolute speed. The signal processing unit acquires a relative speed, and acquires possible second absolute speeds of the target vehicle according to the first absolute speed and the relative speed. The rational speed determination unit determines the rational second absolute speed, so as to resolve the irrational determination of the speed status of the vehicle.

Abstract: A radar system with angle error determination function and method thereof are provided. The system includes a camera device, a radar device, a calculation module, and an angle calibration module. The camera device captures a surveillance image of a surveillance area. The radar device sends a radar signal toward the surveillance area. The calculation module, according to the surveillance image, acquires an image angle of an object with respect to the vehicle in the surveillance area. Also, the calculation module acquires a radar angle of the object with respect to the vehicle which is produced according to a reflection signal generated when the radar signal meets the object. The angle calibration module, by referring to the image angle, correspondingly calibrates the radar angle. Therefore, the radar angle is immediately calibrated.

Abstract: A light emitting device including a light emitting unit, two electrodes, a reflective member, and a light transmissive member is provided. The two electrodes are disposed on one side of the light emitting unit, and electrically connected to the light emitting unit. The reflective member is disposed on the other side of the light emitting unit, and has at least one reflective surface. The light transmissive member is disposed between the reflective member and the light emitting unit, and covers a part of the light emitting unit. A lateral surface of the light transmissive member is served as a light emitting surface of the light emitting device. A manufacturing method of a light emitting device is also provided.

Abstract: A tire pressure detector with protection shell is applied to a wheel. The wheel has a rim having an air tap and a tire mounted around the rim, with an air pressure space formed between the tire and the rim. The tire pressure detector includes a shell and a detector body. The shell is movably disposed in the air pressure space, and the detector body is disposed in a housing space of the shell. The detector body is includes a detection module for detecting the air pressure in the air pressure space, generating a pressure signal, and wirelessly transmitting the pressure signal. Therefore, by improving the structural strength of the tire pressure detector with the shell, the tire pressure detector is conveniently installed without the need of other additional tools.

Abstract: A ringer control device includes a power receiving unit, a detection circuit, and a control circuit. The detection circuit is coupled to the power receiving unit and outputs a detection signal. The control circuit is coupled to the detection circuit and includes a trigger unit and a control unit. The trigger unit detects a trigger event. The control unit is coupled to the detection circuit and the trigger unit, and configured to control the detection circuit and determine whether a ringer device is coupled to the power module according to the detection signal, and further determine a category of the ringer device. A control method of the ringer control device is also provided.

Abstract: A symmetric leaky wave antenna includes a dielectric substrate, an electric wall, and two reflection bore arrays. The dielectric substrate has a first and a second metal layers disposed on two opposite faces thereof. The first metal layer has a feed end and two travelling wave sides. The electric wall is disposed between two travelling wave sides, with the two travelling wave sides symmetrically disposed with respect to the electric wall. The two reflection bore arrays are symmetrically disposed along the two travelling wave sides, respectively, with the electric wall arranged at a central line between the two reflection bore arrays. The two reflection bore arrays pass through the first metal layer, the second metal layer, and the dielectric substrate. The reflection bore array and the electric wall reduce the leakage rate of the electromagnetic wave, thus increasing the gain value of the antenna.