51results about How to "Enable continuous monitoring" patented technology

The invention provides a device and a method for detecting a water level of a pressure vessel of a nuclear power plant reactor. The device comprises a core cooling monitoring instrument, a core cooling state identification module and a pressure vessel water level prediction module, wherein the core cooling monitoring instrument is used for acquiring a supercooling degree signal of a cooling agent of a core outlet and a main pump state signal; the core cooling state identification module is used for receiving the supercooling degree signal and identifying a temperature interval in which the supercooling degree signal is positioned; the pressure vessel water level prediction module is used for calculating, according to the main pump state signal and the temperature interval in which the supercooling degree signal is positioned, to obtain the water level of the pressure vessel. The device and the method which are provided by the invention implement continuous monitoring on the water level of the pressure vessel by predicting the water level of the pressure vessel, and provide a means for an operator to correctly judge a deterioration degree of a pressure vessel water device; meanwhile, the invention discloses judgment on a deterioration degree of a fuel cladding temperature according to the water level of the pressure vessel, so that the defect of not directly measuring the fuel cladding temperature is overcome, and the basis is provided for the operator to correctly judge a core cooling state so as to adopt effective mitigation measures.

The invention relates to a flight path planning method for coordinated detection and obstacle avoidance of an unmanned aerial vehicle group. The method includes the following steps: S1. setting an unmanned aerial vehicle group flying area and designating a task monitoring area in the flying area; S2. defining yaw angle independent variables of N unmanned aerial vehicles, and initializing yaw angles, location coordinate information in the flying area, the number of current searching steps k=0, and the cumulative coverage percent=p1 on the task area at the current moment of the N unmanned aerialvehicles; S3. predicting flight path yaw angles and location information of (k+1) steps of the N unmanned aerial vehicles in the flying area, and separately calculating a coverage area and a fitnessfunction value; S4. comparing all possible fitness values, selecting a yaw angle and location information of an optimal fitness value as information of the (k+1)th step, and storing the yaw angle andthe location information in a flight path chart; and S5. enabling k=k+1, judging whether k=1 or percent=1, if yes, ending the planning, and otherwise, continuing S3 to S5. The method of the inventioncan realize the maximum monitoring coverage area, avoid obstacles and a required flight path has no fixed starting point and ending point.

The invention discloses a haze-auto-adaptive expressway traveling speed early-warning device and method. The device comprises a CCD camera module, a microprocessor, an output module and a power supply; the CCD camera module is used for shooting scenery in front of a traveling vehicle and sending shot image information to the microprocessor; the microprocessor is used for processing the image information from the CCD camera module to determine a visible observation distance under real-time road conditions and determine safe traveling speed limit data according to the visible observation distance; meanwhile, the speed limit data is sent to the output module; the output module sends out the safe traveling speed limit data to let a driver know; the power supply is connected with all the components to supply working voltage to all the components. All-weather and high-efficiency passage with a safety guarantee on an expressway can be realized.

The invention discloses a method for detecting the concentration and a speed of silver ions released in the nano-silver dissolution process. According to the method, step 10), a nano-silver colloidal solution coated with sodium citrate is centrifuged and redissolved, and existing silver ions in the solution are removed; step 20), the nano-silver colloidal solution without the silver ions is mixed with a Raman labeled molecule solution, and a to-be-detected sample solution is obtained; the volume rate of the nano-silver colloidal solution coated with sodium citrate to the to-be-detected sample solution is 1:10; step 30), the to-be-detected sample solution is taken and put in a closed quartz colorimetric dish, and a microscopy Raman platform is used for Raman testing; step 40), Raman data obtained in the step 30) are subjected to baseline correction, curve fitting and data processing, and the changing curve of the concentration of the silver ions released by silver nanoparticles along with time and the changing curve of the release speed of the silver ions along with time are obtained by the aid of mathematic plotting software. The content of the silver ions released in the dissolution process of nano-silver can be continuously detected with the detection method.

The invention relates to a toll booth air quality control system and a control method. The system includes a data collection component, an air purification component, a temperature and humidity adjustment component, a control display component and an alarm component. The air quality control system of the present invention is a convenient and practical indoor air quality, temperature and humidity monitoring and adjustment system that is reasonable in design, energy saving and consumption reducing, compact in structure, maintains indoor micro-positive pressure, and can effectively solve the problems existing in the prior art .