11results about How to "Ensure speed" patented technology

The invention discloses a four-step-in-one negative pressure oil-carrying shutdown method for a styrene dehydrogenation reaction system, and relates to the technical field of styrene dehydrogenation. A negative-pressure steam oil-carrying mode is adopted for the first time, after feeding of the dehydrogenation reaction system is cut off, operation of a tail gas compressor is still maintained, the normal negative-pressure working condition of the reaction system is maintained, and steam oil-carrying under the negative-pressure working condition is carried out; after oil carrying is finished, the tail gas compressor still keeps running, the pressure is gradually increased to micro-positive pressure, and catalyst scorching is conducted; and after scorching is finished, the tail gas compressor is still maintained to operate in the steam cooling and nitrogen cooling processes until nitrogen cooling is finished, the tail gas compressor is stopped, and meanwhile multiple times of starting and stopping of the tail gas compressor are optimized into one-time stopping operation in the stages of steam oil carrying, catalyst scorching, steam cooling and nitrogen circulating cooling. One-time shutdown operation of the tail gas compressor is achieved through negative pressure shutdown, the shutdown operation step sequence of the reaction system is greatly simplified, and the shutdown disposal difficulty of the dehydrogenation reaction system is reduced.

The invention discloses an IGBT packaging material dielectric property and thermal resistance linkage testing device, which relates to the technical field of packaging material testing, is used for carrying out performance evaluation on an IGBT packaging material in intelligent power distribution switch control equipment, and comprises a testing box, the inner wall of the testing box is covered with a thermal insulation layer, the front surface of the testing box is provided with a testing cavity, and the testing cavity is provided with a thermal resistance test cavity. And a lower heat conduction base is arranged at the bottom of the test cavity. The temperature field and heat flow state of a packaging material sample can be actively and accurately controlled, the working temperature rise and heat dissipation conditions of a real IGBT module are simulated, meanwhile, the lower electrode plate and the upper electrode plate directly make contact with the sample and are connected to the broadband dielectric impedance spectrometer, and therefore the temperature rise and heat dissipation conditions of the IGBT module can be simulated while controllable thermal excitation is applied. Dielectric spectrum characteristics of a material can be measured in situ in real time, the temperature sensor directly monitors the temperature of a sample interface, and then thermal resistance testing and broadband dielectric property testing can be dynamically evaluated in the same sample, the same time and the same controlled thermal environment.

This invention relates to the field of smart grid operation and maintenance, and addresses the problem of insufficient information transmission efficiency from inspection robots, leading to delays in high-risk inspection information. Specifically, it is a high-efficiency data transmission system for power inspection robots that integrates 5G communication. This invention determines the risk level of inspection results, records routine and low-risk information, and sends it sequentially or migrates it back to the management platform when network conditions are good. For high-risk emergency information, data is sent immediately. Simultaneously, communication quality is monitored during inspection. If communication quality is substandard, only high-risk data is transmitted back, thus maximizing the communication channel for high-risk data transmission. Furthermore, when communication quality is poor, the inspection robot can be selectively moved to an area with better communication quality during communication testing for temporary information transmission, thereby ensuring the timeliness of high-risk information transmission to the greatest extent possible.

The invention provides a medicine abnormal toxicity inspection electronic experiment record management system. The system comprises an inspection method management module, an animal management module, an animal data management module and an inspection result management module. Wherein the inspection method management module can carry out design, auditing and version control on a drug abnormal toxicity inspection experiment recording template; the animal management module is used for recording full life cycle data of experimental animals; the animal data management module is used for recording drug abnormal toxicity inspection experiment data; and the inspection result management module is used for generating, auditing and publishing electronic experiment records of drug abnormal toxicity inspection. According to the embodiment of the invention, the system achieves the automatic and full-life-cycle management of the drug abnormal toxicity inspection experiment data, guarantees the primitiveness, authenticity, safety and traceability of the laboratory data, effectively improves the inspection work efficiency, and achieves the comprehensive, scientific, unified, ordered and efficient computerized system management of the inspection data.

The application relates to the technical field of data caching, in particular to a social caching retrieval system fusing hot spot analysis, which comprises a hot degree modeling unit, a social association unit and a caching resource allocation unit. The hot degree modeling unit is used for obtaining a hot spot event set, performing hot degree modeling on each hot spot event in the hot spot event set, and obtaining hot degree characteristics of the hot spot event. The social association unit is used for obtaining a user set and constructing a user-content bipartite graph according to interactive behaviors between the hot spot event set and the user set. Through the hot degree modeling unit and the propagation calculation unit, the hot spot event can be modeled according to user behaviors and historical data, and the hot degree of the hot spot event at a future moment can be predicted by using a hot degree prediction model, so that the events which will become hot spots can be identified in advance, and more caching resources can be allocated to the events according to the prediction results.

The invention discloses a self-adaptive fiber jumping control algorithm for power communication and a fiber jumping operation method thereof, and relates to the technical field of power communication, and the self-adaptive fiber jumping control algorithm comprises a signal acquisition unit, a light intensity processing unit, a threshold value design unit, a model optimization unit, a state recognition unit and a fiber jumping execution unit. According to the method, the problem of misjudgment caused by a traditional fixed threshold value is solved through an optimized quantum derived spiking neural network dynamic decision algorithm, when the light intensity is marked as abnormal, the optimal switching path is selected in an auxiliary mode in combination with historical data and light intensity characteristics, and through integral separation and dynamic output amplitude limiting of an integral separation PID algorithm with dynamic amplitude limiting, the optimal switching path is obtained. Control parameters are automatically adjusted according to ambient light intensity, rapidity and stability of fiber jumping operation are ensured, when the light intensity is abnormal, control signals are rapidly generated, fiber jumping equipment is driven to complete link switching, communication interruption time is shortened, and full-closed-loop self-adaptive control from light intensity monitoring to path switching is achieved through cooperative work of the control signals and the fiber jumping equipment.

This invention discloses an AC intelligent power distribution module, an intelligent power distribution cabinet, and a power distribution control method, belonging to the field of power distribution control technology. The AC intelligent power distribution module integrates a semiconductor switch, a main control module, a current monitoring module, and a voltage monitoring module, and is equipped with multiple protection mechanisms. The current monitoring module and the voltage monitoring module each have independent hardware and software protection circuits, achieving dual fast protection. Through drive control protection, in the event of a short-circuit fault, the gate voltage is first pre-dropped to suppress the current peak before completely shutting off. The module also includes a fuse as backup physical isolation. Through modular design and multiple protection mechanisms, this invention achieves the technical effects of a compact power distribution cabinet structure, fast response speed, strong protection capability, flexible parameter configuration, and remote intelligent monitoring.

The invention discloses a rapid ramp parking method suitable for an electric fork-lift truck, which comprises the following steps: firstly, carrying out quality evaluation on a motor rotating speed signal acquired by an encoder, dynamically selecting a filtering strategy, outputting a preprocessed actual speed, extracting time domain, frequency domain and model correlation characteristics based on the speed, a motor torque direction and a target speed, and carrying out rapid ramp parking on the electric fork-lift truck. Calculating confidence coefficients of different road surface working conditions through a fuzzy inference system, further calculating a first-stage given speed according to a target speed and a given speed of a previous period, calculating an auxiliary function given speed by combining consistency judgment of a torque direction and a speed direction and the confidence coefficients of the working conditions, and generating a final given speed by utilizing a self-adaptive gain coefficient; and finally, the final given speed and the actual speed are subjected to closed-loop adjustment to drive a motor to execute parking, and meanwhile, graded safety intervention is implemented based on the working condition confidence coefficient and the real-time vehicle speed, so that deceleration delay in the ramp parking process is effectively eliminated, and the rapidity and stability of control are improved.

The utility model discloses a kind of building construction devices of auxiliary lifting, it is related to building construction device technical field, including roof and fixed lifting device in the bottom of roof, lifting device includes bottom plate, the top center of roof is fixed with fixed block, the top of fixed block is fixed with dustproof shell, the top section of dustproof shell is the structure of the character form, dustproof shell's notch place both sides wall is all provided with sliding slot, the sliding connection of two the sliding slot between with baffle, electric telescopic link is installed between the bottom of baffle and the top of roof;In the utility model, the intelligent monitoring mechanism of fixed rod, adjusting rod, trigger ball, passageway and touch switch is formed, when puncher reaches predetermined position, trigger ball triggers touch switch, automatically activates laser lamp as visual prompt, ensure that construction personnel can promptly understand punch position, avoid actual punch position to be easily deviated from preset position to cause waste hole and need secondary punching situation.

This invention discloses an electrocoagulation device integrating bioelectrical impedance identification function, including a left clamp handle, a right clamp handle, and a left and right clamp head controlled by the opening and closing of the left and right clamp handles, respectively. The front ends of the left and right clamp heads are provided with interlocking teeth. The left clamp head is provided with a nested multifunctional electrode, including a first outer electrode, an insulating ceramic tube disposed inside the first outer electrode, and an inner core electrode disposed inside the insulating ceramic tube. The first outer electrode and the inner core electrode constitute a pair of opposing electrodes for impedance detection and nerve stimulation. The right clamp head is provided with a second outer electrode, and the first and second outer electrodes constitute a pair of opposing electrodes for high-frequency electrocoagulation. This invention enables the coordinated operation of high-frequency electrocoagulation and bioelectrical impedance detection functions on the same instrument, and allows for safe switching between different operating modes through a switchable electrical connection structure.

The application provides a battery fast charging method based on thermal management capability prospective regulation, comprising the following steps: S1) a state recognition step; S2) a heat dissipation capability evaluation step; S3) a target current calculation step; S4) a battery adjustment and closed-loop control step: smoothly transitioning the current charging current to the target charging current; and continuously monitoring the battery temperature in the subsequent charging process, and dynamically adjusting the target charging current through closed-loop feedback based on the temperature difference between the actual battery temperature and the target temperature; the application also provides a battery fast charging system based on thermal management capability prospective regulation, comprising: a state recognition module; a heat dissipation capability evaluation module; a target current calculation module; and a current adjustment and closed-loop control module.