48 results about "Window detector" patented technology

The invention discloses an in-car air conditioning system and aims to provide the in-car air conditioning system which is high in safety and comprehensive in function. The in-car air conditioning system comprises a controller, a fan, a pipeline, an oxygen sensor, a window and door detector, an alarm device and a human body inductor, wherein the fan, the pipeline, the oxygen sensor, the window and door detector, the alarm device and the human body inductor are respectively and electrically connected with the controller; the pipeline is connected with the interior and the exterior of a car; and the fan is arranged in the pipeline. After the system starts working, whether a person is in the car or not is detected by the human body inductor. If the human body detector detects no person, whether car doors and car windows are closed or not is detected through the door and window detector, and if the car doors or the car windows are not closed, an alarm is given through the alarm device after the time reaches a threshold value. If the human body detector detects that the person is in the car, oxygen concentration in the car is detected through the oxygen sensor. When the oxygen sensor detects that oxygen concentration in the car is lower than the threshold value, the fan is started by the controller to suck the air outside the car into the car to realize an outside loop to supplement the oxygen content in the car, and therefore, oxygen deficit or suffocation accident is avoided occurring.

The invention relates to the field of a method for detecting gas concentration by adopting a non-dispersive infrared technology, and specifically relates to a self-correction method for detecting carbon dioxide concentration by adopting the non-dispersive infrared technology. According to the method, detection is performed by adopting an non-dispersive infrared detector, the non-dispersive infrared detection part comprises an infrared source, a single-window detector, a gold-plating gas chamber and a data acquirer, wherein a temperature sensor is arranged in the single-window detector, and a buffer area and a register are arranged in the data acquirer. The self-correction method is characterized by performing the steps of preparing, self-correction data processing and temperature compensating in sequence. The method provided by the invention is precise and reliable to measure, strong in interference resistance, and good in long-time working stability.

The invention provides for automatically identifying the location of a displayed video window based upon a characterization of selected portions of the image for realness based upon a distribution of luminance values for the selected portions. The image is then searched mathematically for a large rectangle of realness, and if found, a similar operation is performed in a smaller rectangle around each of the edges of the large rectangle, in turn, zooming in to a resolution of one pixel, thus identifying the position of the edge. This process can be repeated as often as necessary in order to maintain a fix on the edges of the video window.

The problem of watermarking a sequence of images from a motion picture can be divided into two parts. The first part is embedding watermarks in the sequence of images. The second part is detecting embedded watermarks in a target sequence of images where the target sequence may have resulted from one or more attacks on an original sequence of images in which the watermarks were embedded. Motion pictures are watermarked by embedding information in different ways in different images. In general, the information to be embedded is used to define a plurality of watermark images. Each watermark image is an apparent pattern of noise in both signal and frequency domains, and is different from the other watermark images. Preferably, each watermark image is temporally uncorrelated with the other watermark images. Each watermark image is used to modify a corresponding image from the motion picture. To detect the presence of the information in a target sequence of images from a motion picture, the target images are processed to determine an alignment with a watermark sequence. When an alignment with the watermark sequence is determined, a sliding window detector is applied to detect the watermark and read the information embedded by the watermark. By embedding the same information in different ways in different images, and then detecting this information by combining data from the different images, the sensitivity of the detector is increased.

The invention provides an apparatus and a method for determining the frequency of a radio frequency signal. The coherency of a received signal is determined and only the frequency of a coherent signal is determined. Zero amplitude transitions of coherent signals are counted in respective time periods. If the counts in each time period agree within a quantization error, the accumulated counts for a fixed time period are employed to determine a frequency. The frequency determining apparatus and method are particularly useful with a frequency agile radio receiver for detecting the presence of radio frequency signals from nearby mobile and stationary transmitters. Upon determination of the frequency of the nearby transmitter, the channel of transmission can be determined from a memory within the receiver and the receiver can be tuned to monitor the transmission. Additional tests to verify the frequency determination may be applied using squelch and window detector circuits of the radio receiver.

The invention provides a SAR image sparse regularization feature enhancement method aiming at interpretation, which comprises the following steps: a SAR image feature enhancement model based on a sparse regularization framework is established; The SAR image feature enhancement model based on sparse regularization framework is solved by using the iterative threshold algorithm based on L1 / 2 norm, and the SAR image feature enhancement results are outputted. The regularization feature enhancement method of SAR image takes target detection of SAR image as the final goal, judges the feature enhancement changes of potential target region and background region through the designed rectangular window detector, and optimizes the regularization parameters adaptively. The final image enhancement results can effectively improve the target detection rate of the existing SAR target detection algorithm and reduce the false alarm rate.

The invention discloses an alarm system for automatically reminding door / window closure. According to the technical scheme, the alarm system comprises a controller, at least one door / window detector, a defense timer, a reminding timer and an indicator, wherein the controller is respectively connected with the door / window detector, the reminding timer, the defense timer and the indicator. By the adoption of the timed defense mode, a user can set a certain time before going out or falling asleep according to the law of life, so that the system reminds whether the door / window is closed; the system can be in defense at the moment of starting the timed defense, even if the door or window is not closed, and the other areas except the door or window are warned; and meanwhile, at the moment of starting the timed defense, even if the door or the window is not closed, the indicator does not give reminding indication, so that the user who falls asleep is not disturbed.

A video window detector includes a region characteristic determiner to generate at least one characteristic value for at least one region of a display output; a characteristic map generator to generate an image map from the at least one characteristic value for at least one region of the display output; and a window detector to detect at least one video window dependent on the image map.

The invention discloses a car window control system and method. The car window control system comprises a car window detector and a controller, wherein the car window detector is used for detecting whether foreign matter exists on car window glass or not; and the controller is connected with the car window detector for judging whether the foreign matter exists on the car window glass or not after receiving a window dropping instruction of the car window glass, and controlling and keeping the car window glass immovable if the foreign matters exists on the car window glass. When car dropping needs exist, the car window detector is used for detecting whether the foreign matter exists on the car window glass or not in advance; window dropping operation is not performed if it is detected that the foreign matter exists on the car window glass, the position of the car window glass is kept immovable, a user can clear the foreign matter on the car window glass, and selects operations of dropping the window again and the like to effectively prevent the problems such as working noises of the mechanism and even functional failure as the foreign matter on the car window glass is collected into a car window lifting mechanism by mistake when the user does not notice. The invention further discloses a vehicle.

The invention discloses an indoor door and window detector for effectively improving measurement accuracy, relates to the technical field of indoor door and window detection, and aims to solve the technical problem of poor sealing between a door and window frame and an abutting plate. According to the technical scheme, the abutting plate includes a left side plate, a right side plate, a top plateand a bottom plate; pressing bars for abutting a door and window in the direction of the abutting plate are arranged at the positions, located at the abutting plate, of a rack, a mounting groove is formed in the outer side wall, towards the pressing bars, of the abutting plate, the length direction of the mounting groove is along the length direction of the abutting plate, and a rubber sealing block is arranged in the mounting groove; an embedding hole is formed inside the abutting plate in the length direction, and an electric heating rod is arranged in the embedding hole; and the rubber sealing block is heated and bulged, so that the rubber sealing block tightly abuts against the abutting plate, the sealing between a door jamb and the abutting plate is effectively maintained, and sealingbetween the door jamb and the left side plate, the right side plate, the top plate and the bottom plate is effectively maintained.

The invention discloses an intelligent fire alarm system, which comprises an alarm host, a signal collecting terminal and a remote terminal; the signal collecting terminal comprises a far infrared detector, a smoke detector, a door and window detector, a coal gas detector and a wireless communicator; output ends of the far infrared detector, the smoke detector, the door and window detector, and the coal gas detector are connected with the wireless communicator, and the signal collecting terminal is connected with an information classifying system through the wireless communicator; an output end of the information classifying system is connected with the alarm host, and the alarm host is connected with a video monitor, an alarm whistle and a property management office; the output end of thealarm host is connected with the alarm whistle and the property management office, and the alarm host is in wireless connection with the remote terminal. The intelligent fire alarm system can timelyfeedback the collected information to a user or the property management office, and facilitate people to take effective measures to prevent signal interruption caused by artificial wire breaking or wire burnout when fire disaster occurs.

A low cost fault detection and protection method and embodiment circuit can detect short circuit faults between an inverter system control (ISC) circuit outputs and a chassis, an electrical machine winding and a chassis, and a DC bus and a chassis. A fault protection unit (FPU) can monitor chassis voltage with respect to a DC bus to detect the presence of a short circuit fault, and provide status output indication of whether a fault is detected. By way of example, an FPU can include a window detector and a signal transmitter. An FPU can provide status output to an ISC controller configured to terminate ISC operation when any of the aformentioned faults is present, thereby preventing damage to devices contained in the ISC circuit.

The invention discloses a window handle multifunctional detection machine, which includes a workbench, and is characterized in that it also includes a usability test device and a strength performance test device; the usability test device includes a simulated window; a swing cylinder is fixedly connected to the mounting plate , the swing cylinder is connected to the "7"-shaped transmission rod, and the "7"-shaped transmission rod is directly below the simulation window and the movable sleeve assembly is set on the cross bar; one side of the mounting frame is provided with a cantilever beam, and the other end of the cantilever beam is connected with a nylon wedge seat The strength performance testing device includes a bearing platform, a loading plate, a loading head, a transmission shaft and a handle frame; the handle frame is arranged under the bearing platform; the strength performance testing device also includes a weight for loading the load plate. Realize the operation torque test, wind pressure test, closed gap test, service life test and additional operating force test of the test handle on the same workbench, and truly simulate the use of the handle without increasing the need for test execution. Hand wear.