143 results about "Light flicker" patented technology

A photo detective LCD device includes a light pen. The light pen includes a body, a driving pulse generating module and a light generating module. The body has a pen shape, and an end of the body includes an opening through which light exits. The driving pulse generating module is disposed in the body and generates first and second driving power pulses having first and second frequencies, respectively. The light generating module generates first and second light in response to the first and second driving power pulses, respectively. The first and second light flickers in a third frequency and a fourth frequency, respectively. The power consumption is reduced, and the brightness of sensing light is enhanced. The light pen generates light having at least two different frequencies, and the display device recognizes light generated from the light pen effectively. Therefore, the display device may operate without failure.

This is a multi-functional warning system for a vehicle and the related control method. This system is composed of a host unit and branch units. The branch unit is deposed in a tire, which includes sensor(s) for monitoring the pressure, temperature or other information about the tire; if it detected a tire in deflated high temperature or loosed status, it would generate a RF signal that would be sent to the host unit. The hosts unit deals with not only aforesaid RF signals, but also signals from acceleration sensor and signals about high-water-temp, low-oil pressure etc., a CPU processes all information and then gives a corresponding indication in voice, digital and light to warn the driver. Upon severe tire failure or high deceleration of the vehicle, the host unit send out a warning signal, make a warning light flicker to provide the follow-on vehicle with a warning, in bad weather it can turn on the warning light to guide and prevent rear-end collision. The system has advantage of giving an intelligent warning for tires, devices in the vehicle, and the trouble like high deceleration, which secure the safety of the personnel and the vehicle.

A photo detective LCD device includes a light pen. The light pen includes a body, a driving pulse generating module and a light generating module. The body has a pen shape, and an end of the body includes an opening through which light exits. The driving pulse generating module is disposed in the body and generates first and second driving power pulses having first and second frequencies, respectively. The light generating module generates first and second light in response to the first and second driving power pulses, respectively. The first and second light flickers in a third frequency and a fourth frequency, respectively. The power consumption is reduced, and the brightness of sensing light is enhanced. The light pen generates light having at least two different frequencies, and the display device recognizes light generated from the light pen effectively. Therefore, the display device may operate without failure.

The invention discloses a method and system for diagnosing hardware module faults based on indicator lights. The method includes the steps that first, a fault detection mechanism is added, a test interface and an identification code are added at each hardware module drive program inlet, and each hardware module corresponds to one test interface and one identification code; second, the indicator light flickering types corresponding to the identification codes are set, and one identification code corresponds to one indicator light flickering type; third, a database is established, and the one-to-one corresponding relation of the hardware modules, the identification codes and the indicator light flickering types is stored; fourth, the fault detection mechanism is started, when the hardware module faults are detected, the identification codes are read according to the indicator light flickering types, and corresponding hardware module names are read according to the identification codes. According to the method and system for diagnosing the hardware module faults based on the indicator lights, when the faults happen, the hardware faults can be detected quickly, time is saved, overhauling efficiency is improved, and analysis early warning and automatic repairing can be conducted on the hardware module faults, the faults can be automatically repaired conveniently and rapidly, and the after-sales repair cost is saved.

The invention discloses a backlight module group, a display apparatus and a sneak shot prevention system. The backlight module group comprises backlight and a control module connected to the backlight. The control module is used for making the backlight emit modulation light flickering according to a preset frequency. The preset frequency is greater than or equal to a scanning frequency of a shutter and is greater than a flicker frequency of a display screen. Through making the backlight emit the modulation light flickering according to the preset frequency, the preset frequency is greater than or equal to a scanning frequency of a rolling shutter. When the display screen located at a light emission side of the backlight module group is shot by a camera having the rolling shutter, images shot by the camera are a frame displayed by the display screen and a superposed image of light and dark stripes. The stripes shield the frame displayed by the display screen so that a sneak shot behavior is effectively prevented. The preset frequency is greater than the flicker frequency of the display screen so that eyes can not identify flicker of the backlight and normal display of the display screen is not influenced.

The invention provides an intelligent medicine box system, which includes an intelligent medicine box and an external terminal; the intelligent medicine box includes an upper cover, a shell, a medicine cover layer, a medicine placement layer, and a circuit board; the intelligent medicine box also includes a control module , a power supply module, a display module, a detection module and a communication module; the invention also provides a control method for the intelligent medicine box system. The beneficial effects of implementing the present invention are: 1, the medicine box can be opened in multiple layers, which facilitates the replacement between the parts; Leakage occurs during the cleaning process with water and affects other electronic components of the medicine box; 3. The design of the first terminal and the second terminal enables the guardian and the person taking the medicine to know the situation of taking the medicine in time; 4. The designated indicator light flashes and monitors taking the medicine Whether the user opens the corresponding small cover, which reduces the possibility of the drug user taking the wrong drug.

The invention discloses an unlocking and door opening system and method based on mobile phone LED light.The system comprises a mobile phone and a door lock control circuit arranged on a door, wherein the door lock control circuit is connected with a door lock motor, a light flickering module is arranged in the mobile phone and comprises a password data editing and storing circuit, a data encryption circuit, a binary conversion circuit and a first single-chip microcomputer which are sequentially connected, a wireless transmitting circuit is connected to the binary conversion circuit, and the first single-chip microcomputer is connected with an LED light arranged on the mobile phone; the door lock control circuit comprises a photosensitive sensor, a second single-chip microcomputer, a wireless receiver, a storer and a data comparison circuit, the photosensitive sensor is connected one input end of the data comparison circuit through the second single-chip circuit, the wireless receiver is connected with the storer, the storer is further connected with the other input end of the data comparison circuit, and the output end of the data comparison circuit is connected with the door lock motor.Opening of a door lock is controlled through flickering of light, so that inconvenience brought by mechanical unlocking is avoided.

The invention relates to a safety protection device for a gas stove. The device at least comprises an infrared induction module and a timekeeping module. After igniting, an electromagnetic valve is switched on, the infrared induction module detects a human body spectrum within a range in real time and sends a signal to the timekeeping module, and then the timekeeping module begins timing; the infrared induction module detects the human body spectrum in the range once again and sends the signal to the timekeeping module; the timekeeping module judges the time interval between two detection signals, or if the timekeeping module judges that the value of the time between two adjacent detection signals is more than the preset value 1, and sends a signal to a main control module, a caution light flickers, and an alarm apparatus rings; and if the timekeeping module judges that the value of the time interval between the two adjacent detection signals is more than the preset value 2, the main control module sends the signal to the electromagnetic valve, then the electromagnetic valve is closed, a gas pipeline is closed, and a fire is quenched automatically.

This is a multi-functional warning system for a vehicle and the related control method. This system is composed of a host unit and branch units. The branch unit is deposed in a tire, which includes sensor(s) for monitoring the pressure, temperature or other information about the tire; if it detected a tire in deflated high temperature or loosed status, it would generate a RF signal that would be sent to the host unit. The hosts unit deals with not only aforesaid RF signals, but also signals from acceleration sensor and signals about high-water-temp, low-oil pressure etc., a CPU processes all information and then gives a corresponding indication in voice, digital and light to warn the driver. Upon severe tire failure or high deceleration of the vehicle, the host unit send out a warning signal, make a warning light flicker to provide the follow-on vehicle with a warning, in bad weather it can turn on the warning light to guide and prevent rear-end collision. The system has advantage of giving an intelligent warning for tires, devices in the vehicle, and the trouble like high deceleration, which secure the safety of the personnel and the vehicle.

The invention discloses a warning lamp. The warning lamp comprises an area light source, a rotating piece, a first rotating shaft, a driving mechanism and a baseplate, wherein the area light source and the driving mechanism are both fixed on the baseplate; the rotating piece is fixedly connected with the first rotating shaft; the first rotating shaft is rotationally connected with the driving mechanism; the driving mechanism drives the rotating piece to rotate; the area light source comprises a light outlet surface for emitting light; a rotating surface of the rotating piece is parallel to the light outlet surface; the rotating piece comprises a light shielding part and a light transmitting part; when the light shielding part rotates to an opposite position of the area light source, the rotating piece shields the emitted light of the light outlet surface; and when the light transmitting part rotates to the opposite position of the area light source, the rotating piece transmits the emitted light of the light outlet surface. The light flicker of the warning lamp is realized through the rotation of the light shielding part and the light transmitting part corresponding to the area light source.

The invention discloses drowning monitoring swimming goggles. The drowning monitoring swimming goggles comprise a water pressure sensor, an indicator light, a battery, a switch, a central processing unit, a remote communication module and a GPS positioning module. The water pressure sensor is electrically connected with the central processing unit and is used for detecting the swimming information of a swimming goggles wearer and sending the information to the central processing unit, and if the time of the swimming goggles being under water exceeds a certain time, then the judgment that a drowning condition occurs can be conducted. The central processing unit comprises a master control MCU, the master control MCU achieves a timer function and is used for receiving information collected by the sensor module and storing the information in a storage, and if it is detected that a swimmer is under the drowning condition, help seeking can be conducted through the remote communication module. The GPS positioning module is used for confirming a drowning position, and a rescuer can quickly confirm the rough position of a drowner. The indicator light flickers continuously when the drowning condition occurs and is used for confirming the specific position of the drowner. The drowning monitoring swimming goggles have the advantages that precise waterproof design is adopted, the direction of the swimmer can be monitored at any time, a warning is sent out in time when a drowning accident occurs in the swimming process, and the drowning accident is prevented from happening.

The invention discloses a method for forming an incandescent-lamp-composed flicker-free low-blue-light full spectrum special light. The special light adopts a high voltage direct current power supply (310V) for power, making the special light flicker-free and solving the fundamental problems of an incandescent lamp. According to the method, two ordinary light bulbs are used and connected in series to equally spread the 310V direct current voltage, which further reduces the color temperature of the incandescent lamp, further reduces the blue-ray hazards, promotes the visual and non-visual health, and extends the service lifetime of incandescent lamp as well as reduces the dazzling light and the surface temperature of the incandescent lamp, therefore, making the use of the incandescent lamp more secure. The method promotes the multiple new illumination ideas for low illuminations and holds that under special illumination, the deeply red part and the infrared waveband of the incandescent lamp have health significance, and are not all entirely a waste of energy. The invention also discloses a method for forming a light powered by low voltage and consisting of a plurality of incandescent lamp beads. The disclosed method is assessed by experiments, and the light quality is ensured to be perfect, making the special light of profound significance to the health and reproducing of the Chinese nation.

The invention relates to a truck reversing radar device, wherein reversing radars are arranged on the two sides of a vehicle body extending outward for certain distance, and a monitoring angle is provided for the reversing radars to monitor the back of the vehicle; and meanwhile, a radar indicator light can reflect the obstacle distance behind the vehicle according to the detection distance of the reversing radars, the driver can directly see the light flicker condition of the reversing radars through the rearview mirror, thus the reversing is assisted, and the cost is relatively low. Compared with audible alarm, the adaptation of the device to a noisy environment is higher; without an additional signal line for feeding back the distance information, the judgment of the obstacle behind can be finished directly by observing the radar indicator light; the mounting position does not take the truck space; and meanwhile, the cost is relatively low, and the device is suitable for a large truck.