30results about How to "Status judgment is accurate" patented technology

The invention discloses an intelligent identification steering wheel based on multi-sensor fatigue driving and an identification method thereof, including a steering wheel body and a steering column. The invention relates to the technical field of auto parts. The intelligent recognition steering wheel and its recognition method based on multi-sensor fatigue driving monitor the driver at the same time through the pressure sensor, blood oxygen sensor and camera. The oxygen sensor collects the driver's blood oxygen index, and the central processing unit calculates the driver's fatigue state value according to the blood oxygen index. The camera collects the driver's face information, and calculates the driver's blink times through the image processing unit. Monitor the driver's blinking condition to judge fatigue. Various monitoring methods make the judgment of the driver's state more accurate, so that when the driver is tired, the driver can be reminded in time to prevent accidents.

An automatic light controller, the automatic light controller includes a control circuit, a photosensitive sensor, a light sensor, a three-axis acceleration sensor U3, a vehicle speed signal, a combined light signal, a drive circuit, a low beam, a high beam, etc., the The control circuit includes an external power supply input circuit connected to the input terminal of the single-chip microcomputer U4, a crystal oscillator circuit, and a program download interface circuit. The output terminals of the photosensitive sensor, light sensor, vehicle speed signal and combined light signal are connected to the input terminal of the single-chip microcomputer U4. The output end of the axial acceleration sensor U3 is connected to the SPI interface of the single-chip microcomputer, and the output end of the control circuit is connected to the low beam and the high beam through the driving circuit. The invention can automatically control the lighting or closing of the headlights of the automobile according to the change of the ambient light intensity, avoiding the potential safety hazards caused by frequent dimming or constant dimming to safe driving, and ensuring the safety of driving at night.

The present disclosure relates to a sliding cover type terminal, a sliding cover state detection method, a device, and a storage medium. The sliding cover type terminal includes an upper sliding cover and a lower sliding cover connected by a sliding rail; the upper sliding cover is provided with a first magnet and the second magnet, the first magnet and the second magnet are arranged at a preset distance along the sliding direction of the upper / sliding cover; the magnetic poles of the first magnet and the second magnet have the same direction; Hall sensors and The processor, the Hall sensor is electrically connected with the processor; when the slide cover is opened, the first magnet and the second magnet are located on one side of the Hall sensor; when the slide cover is closed, the first magnet and the second magnet The magnets are both on the opposite side of the Hall sensor. The present application can realize a more accurate state judgment on the state of the sliding cover, and can timely output the state event of the sliding cover in the middle position of the sliding process, which is beneficial to the quick start of the subsequent control logic.

The invention discloses a frequency-stabilized oscillatory type infrared positioning-based pattern recognizing and reminding system for signal lamps. The system comprises a power supply module, a reminding module, a central control module and a camera, wherein the reminding module, the central control module and the camera are connected with the power supply module. The reminding module and the camera are connected with the central control module. The central control module comprises a positioning module, a pattern recognizing module connected with the positioning module, and a speed sensing module connected with the pattern recognizing module. The system is characterized in that the positioning module is composed of a frequency-stabilized oscillation module, an infrared receiving circuit, a constant-current infrared transmitting circuit connected with the frequency-stabilized oscillation module, a single-chip microcomputer connected with the infrared receiving circuit, a distance threshold storage module and a triggering module, wherein the distance threshold storage module and the triggering module are connected with the single-chip microcomputer. The constant-current infrared transmitting circuit is controlled by the frequency-stabilized oscillation module. Therefore, infrared signals can be stably radiated by the constant-current infrared transmitting circuit, so that the stability of the system is improved.

The present disclosure relates to a sliding cover terminal, a sliding cover state detection method, a device and a storage medium. The upper sliding cover of the sliding cover terminal is provided with a magnet; the sliding cover is provided with a first Hall sensor, a second Hall sensor and processor; the first Hall sensor and the second Hall sensor are set at a preset distance along the sliding direction of the upper / sliding cover; in the sliding state of the sliding cover, the first Hall sensor and the second Hall sensor The Hall sensors are located on one side of the direction where the first magnetic pole of the magnet is located; when the sliding cover is closed, the first Hall sensor and the second Hall sensor are both located on one side of the direction where the second magnetic pole of the magnet is located. The present disclosure realizes the output of three or four level states through two Hall sensors, and can output a relatively accurate slide state event in an intermediate state even in the case of interference.

The invention discloses a lock state reminding device which comprises a clutch assembly, a left optocoupler, a right optocoupler, a right optocoupler swing plate assembly and a left optocoupler swing plate assembly. The clutch assembly comprises a rotating clutch wheel and a sliding block guide base. The rotating clutch wheel is rotatably arranged on the periphery of the outer side of the sliding block guide base in a sleeving mode. The distance from the outer side wall of the rotating clutch wheel to the circle center of the sliding block guide base is gradually decreased. The left optocoupler and the left optocoupler swing plate assembly are arranged on the left side of the clutch assembly, the right end of the left optocoupler swing plate assembly makes contact with the outer side wall of the rotating clutch wheel, and the left optocoupler swing plate assembly can be rotated in and out of the left optocoupler. The right optocoupler and the right optocoupler swing plate assembly are arranged on the right side of the clutch assembly, the left end of the right optocoupler swing plate assembly makes contact with the outer side wall of the rotating clutch wheel, and the right optocoupler swing plate assembly can be rotated in and out of the right optocoupler. The lock state reminding device is simple and compact in structure and can carry out state adjustment accurately in time.