50 results about "Fatal accident" patented technology

The present invention discloses a communication system and method for determining and recording the geographical location of an object attached with a short range wireless device, over a wide area, in a vicinity of a radio beacon that can be located by a remote control station, upon establishing or interrupting a wireless connection between said wireless device and said radio beacon. One embodiment of the invention relates to a system for search and rescue of a man overboard (person overboard), a quite frequent and fatal accident at sea.

Light-sound warning system of ail participants in road traffic solves the problem of safe and reliable signaling of a pedestrian on road, in a way that a driver who saw a pedestrian on the road activates the switch which transmits the information to other vehicles via radio signals, and signals to pedestrians with light and audio signals that there is a vehicle approaching. This system protects both the pedestrian, as well as the driver who first spotted the pedestrian because the vehicle driving behind the vehicle that first saw the pedestrian often does not observe the situation on time causing the collision with both the vehicle and the pedestrian. The value of this system is that the pedestrian is protected from incoming vehicles, the damage insurance claims to insurance companies are decreased, and the safety of drivers in traffic is increased because it reduces the possibility of fatal accidents. In addition, the auto industry gets more jobs and increased employment. The system is realized by connecting the following elements installed inside the vehicle: the central unit (2), the receiving- transmitting unit (4), the switch (6), the interior light signals (10), external audio signals (12) and the internal sound signals (14); while the exterior light system is (8) is installed on the outer periphery of the vehicle.

The invention discloses a swimming pool drowning life-saving intelligent system. The swimming pool drowning life-saving intelligent system comprises an intelligent drowning monitoring alarm apparatus, an underwater sound signal receiving conversion device and a data processing device. When a swimmer is in a drowning condition, the intelligent drowning monitoring alarm apparatus automatically sends a sound wave signal, the underwater sound signal receiving conversion device receives the sound wave signal sent by the intelligent drowning monitoring alarm apparatus underwater, converts the sound wave signal in to an electric signal and transmits the electric signal to the data processing device through a wired or wireless communications technology; the data processing device processes the received signal so as to precisely locate the position of a drowning man in the water, and records and displays the underwater moving track of the drowning man. The swimming pool drowning life-saving intelligent system provided by the invention has the beneficial effects that the intellectualized and automatic drowning alarm and processing device is adopted, thus the defect of the existing drowning life-saving manner is overcome, the intellectualized and automatic alarm of a drowning accident is realized, the active prevention, prewarning and in-time detection of drowning life saving are realized, and the incidence rate of the drowning accident, especially, the drowning fatal accident, can be basically avoided.

The invention discloses an amphibian tank gun automatic drainage device, belonging to the technical field of guns; the automatic drainage device is used for draining the water entering in a gun barrel, wherein the water is from the splash caused by the bombing of a shell launched by enemy in the water adjacent to the tank or caused by the storm when an amphibian tank gun is in float-crossing sailing. In the invention, fatal accident caused by a condition that the gun cannot shoot since the water is taken in the gun barrel or a condition that the bore premature is caused by the rushed shooting since the water is taken in the gun barrel is overcome, the risk of the amphibian tank gun when shooting on the water is reduced, and the safety and battle effectiveness of the amphibian tank are improved; the device is provided with a drainage channel for communicating the internal and the external of the gun barrel; the drainage channel is opened to drain the water in the gun barrel at normal time, and is automatically closed by using gun pressure when the gun shoots so as to prevent high-temperature high-pressure gas from leaking to guarantee the performance of the gun.

The invention discloses a device and method for detecting the concentration of acetylene gas by using photo-induced ultrasonic method. Detectors, temperature sensors, pressure sensors, lock-in amplifiers, data acquisition cards, computers. Based on the above device, the non-contact measurement of the acetylene gas concentration can be realized quickly, accurately, with high sensitivity and high resolution, and the occurrence of fatal accidents caused by acetylene gas poisoning can be effectively avoided. Using temperature and pressure to correct the monitoring value of the concentration can effectively reduce the influence of environmental factors on gas detection and greatly improve the measurement accuracy of the system. The use of ultrasonic imaging to detect gas concentration can reduce the interference of other gas components and environmental noise, and the detection speed is faster and the sensitivity is higher.