摘要:
A device with a memory function for detecting closure of vehicle doors and the method thereof is disclosed. Before a vehicle door is open, a detecting signal near the outer side of the door is emitted and its detection status is recorded. When the vehicle door is to be closed, a first detecting signal is emitted from the door frame top downwards and a second detecting signal is emitted near the outer side of the door. If the first detecting signal indicates that a person is at the door or the second detecting signal indicates that a person exists on the outer side of the door by comparison with a precious record, then the door is prohibited from being closed. Otherwise, the door can be closed. This automatic detection method can prevent the driver from accidentally hurt passengers by carelessly closing the doors.
摘要:
A parking sensor apparatus has a microprocessor and multiple ultrasonic sensors. The microprocessor uses a time division transmitting method to control only one ultrasonic sensor to output an ultrasonic detecting signal. In addition, after one ultrasonic detecting signal is output, all ultrasonic sensor are controlled to be in receiving status. Therefore, the microprocessor receives the reflected detecting signals from the ultrasonic sensors and obtains preset distances defined between adjacent ultrasonic sensors to calculate the shortest distance between the vehicle and the obstacle. Further, since only one ultrasonic sensor outputs the ultrasonic detecting signal at a time point, the microprocessor clearly determines that the reflected detecting signal is corresponding to the present ultrasonic sensor, that is controlled to output the ultrasonic detecting signal.
摘要:
A car reversal radar automatically modifies the sensor scanning range and the method of the same. The car reversal radar includes a central processing unit that has predetermined compensation value and threshold distance. When the car reversal radar starts, its surrounding environment is recorded into an initial detecting value. The initial detecting value is compared with a subsequent detecting value recorded for the environment when the car is being backed. When the subsequent detecting value is greater than the sum of the initial detecting value and the compensation value, the distance between an obstacle and the ultrasonic sensor of the car is compared with the threshold distance. If the former is greater than the latter, the compensation value is increased. Therefore, the obstacle has to even closer to the ultrasonic sensor to reduce the sensitivity of the ultrasonic sensors at the tail and to prevent incorrect actions.
摘要:
A warning method for deviation of a moving vehicle and the device of the same uses a video camera to continuously capture road images behind the vehicle and generates a video signal. A graphics processor analyzes a static background of the road based on the video signal, analyzes whether the vehicle deviates from its original path, and decides whether any moving object approaches the vehicle. In any abnormal circumstance, the graphics processor outputs a signal to a microprocessor. The microprocessor then drives an alarm to set off a warning signal to notify the driver.
摘要:
A door lock control system integrated with sensing and audio/image identification functions includes three identification means. First, an RFID card reader obtains the identification code of a user's RFID card to perform a first identification check. After the first check is passed, the user is asked to make a voice to be compared with a pre-stored voice for a second identification check. After the second check is passed, an image of the user is taken to be compared with a pre-stored image for a third check. After all the three checks are passed, an electronic door lock is opened.
摘要:
A car speed alarm system is installed in a vehicle and has a modulation module and a demodulation module. The modulation module sends a car speed signal to cars behind when the car is decelerating. The cars behind use their demodulation module to read the transmitted car speed signal and notify their drivers, so that the drivers know how and when to reduce their speeds.
摘要:
A reversing sensor device applies a master-slave type of sensor architecture. The reversing sensor device includes at least one master-sensor and more than one slave-sensor. The master-sensor includes a microprocessor, an ultrasonic emission circuit, a reflective wave detection circuit and an alarm circuit. The master-sensor not only takes charge of detecting the obstacle but can also coordinate the operation timing for each of the slave-sensors. In this way, the master-sensor replaces the functionality of a conventional control box. The master-sensor is connected to the slave-sensors and also uses a time-sharing principle and a polling method to control the timing of each slave-sensor to collect a detection result. In addition, the slave-sensor includes a microprocessor, an ultrasonic emission circuit and a reflective wave detection circuit.
摘要:
A vehicle on-board sound recording device includes a carrier with a sound recording module. The sound recording module includes a microprocessor, a memory, a microphone, a mini speaker, an indicator unit and a plurality of operation buttons. The microprocessor is used as an operation control center with a built-in compress program to make a compressed audio file. The memory is used as a storage media. The microphone is used to receive a driver's sound message and send to the microprocessor. The mini speaker is used to play the sound message of digital/analog conversion. The operation buttons and the indicator unit are configured on a surface of the carrier to facilitate the driver to manipulate, so that the driver not only can record important sound message but also can have a safe driving.
摘要:
A reversing sensor device applies a master-slave type of sensor architecture. The reversing sensor device includes at least one master-sensor and more than one slave-sensor. The master-sensor includes a microprocessor, an ultrasonic emission circuit, a reflective wave detection circuit and an alarm circuit. The master-sensor not only takes charge of detecting the obstacle but can also coordinate the operation timing for each of the slave-sensors. In this way, the master-sensor replaces the functionality of a conventional control box. The master-sensor is connected to the slave-sensors and also uses a time-sharing principle and a polling method to control the timing of each slave-sensor to collect a detection result. In addition, the slave-sensor includes a microprocessor, an ultrasonic emission circuit and a reflective wave detection circuit.
摘要:
A car reversing radar sensor having a fine-tuning function includes a cylinder, a sensor module, a front cover, a packing block and a back cover. The sensor module is fitted in the cylinder and a sensing angle thereof can be adjusted. The packing block includes a push part a brake part, and a stick part. The packing block is mounted on the cylinder for securing the sensor module at a desired sensing position.