5 results about "Safety control" patented technology

The invention provides a gas meter with a safety control function and a safety control method. The gas meter comprises a sensing unit, a control unit and a safety unit. The sensing unit is used for detecting the flow of gas which flows through the gas meter. The control unit is connected to the sensing unit and the safety unit which is located inside or outside the gas meter. Based on a detecting result of the sensing unit, whether abnormal conditions occur is determined, if the abnormal conditions occur, the safety unit is controlled to start safety precautions. The safety unit can comprise a safety valve and can close the safety valve to block flowing of the gas. The safety unit detects occurring of the abnormal conditions based on real-time flow obtained by the gas meter during the metering process, and automatically starts the safety precautions when the abnormal conditions occur. The gas meter with the safety control function is low in cost, easy to popularize, capable of timely, quickly and accurately detecting the abnormal conditions and automatically closing gas input, and ensures safety use of the gas.

The invention discloses an intelligent safety control system and vehicle. The intelligent safety control system comprises multiple distance sensors for detecting the distances of front and back obstacles, an engine ECU, an intelligent module and a brake assisting motor, wherein a control list is stored in the intelligent module and records corresponding relation between the allowed accelerator value and current speed, current gear and obstacle distance as well as the start conditions of brake assistance; when synchronous accelerator signal and brake signal are detected, the intelligent module is used for obtaining the distance, speed and gear and then determining the allowed accelerator value and whether the braking assistance is needed according to the control list and sends corresponding signals to the engine ECU; and the engine ECU executes corresponding control. The intelligent safety control system and the vehicle disclosed by the invention can guarantee the driving safety to the greatest degree and effectively eliminate the safety risk of the driver stepping on the accelerator pedal by mistake, thereby avoiding serious accidents of vehicle collision.

The invention relates to a function safety monitoring development and demonstration system for major hazard source equipment and belongs to the technical field of function safety monitoring. The system comprises a safety control cabinet, a safe PLC (programmable logic controller) arranged in the safety control cabinet, a pattern touch terminal, safety input equipment, and safety output equipment, and also comprises a quadrangle frame and an apparatus layer which are connected into a whole up and down, a safety grating, a non-contact magnetic safety door, a mechanical safety door, an alarm device, an operation button, and a safety carpet, wherein the safety grating, the non-contact magnetic safety door and the mechanical safety door are arranged at three sides of the quadrangle frame; the alarm device is arranged above the quadrangle frame; the operation button is arranged on a panel of the apparatus layer; the safety carpet is arranged on the ground at one side of the quadrangle frame, and monitored high-speed rotation equipment is arranged inside the quadrangle frame. The system provides four effective protective measures, and problems that operating personnel enter into a danger area or various human injuries caused by misoperation are effectively avoided.

The invention discloses a feeding traveling crane system, which is used for feeding operation of ladder type or cascade type cage culture equipment. The feeding traveling crane system comprises a feeding traveling crane, a control device, a remote control terminal, and a security device. The feeding traveling crane is arranged on a travelling guide rail of the cage culture equipment. The control device is electrically connected to the feeding traveling crane and is connected to the remote control terminal through communication. The security device is installed on the cage culture equipment andis electrically connected to the control device. Through the cooperation among the feeding traveling crane, the control device, the remote control terminal, and the security device, switching among multiple control modes and safety control are realized. The control mode can be selected according to the feeding scene, the efficiency of feeding operation is largely improved; and the problem that the efficiency of feeding operation of a conventional feeding traveling crane is not high is solved. By using the feeding traveling crane system, through the remote control terminal and security device,the feeding traveling crane is safely and reliably controlled to carry out predetermined feeding operation, the feeding travelling crane does not need to be monitored in real time, and the feeding operation efficiency is high.