Control scheme of thermal insulating door based on area linkage control structure

Taking the thermal insulating door as an example in which door blocks are driven by electric push rod, the area linkage control structure of block-groups has been established based on door blocks area linkage division. And multi-block control under different working conditions is realized. By employing PI controller to regulate single block to open and close, system controllability has been improved and control energy consumption has been reduced. The simulation results show that the proposed control scheme can relieve the heavy dependence of thermal insulating door control on manual operation to some extent.

Construction and artificial realization of intelligent multi-sensory subject set form

The realization of Liu Xia reconstruction and the concept of subject, the corresponding realization between existence, the corresponding determination, as the realization of existence as the main body, reveal the mutual determination between different senses as the principle of consciousness (cognition), consciousness (cognition) is the main body realization of two or more sensory nerves excited at the same time, different sensory nerves excited at the same time and excited by the connection, thus putting forward the collective mathematical form of intelligent subjects and the technological path of artificial realization.

Control system based on tracking balance car

For balanced cars, to achieve high-speed and stable operation, two efforts should be made. The first is to make the center of gravity of the car model as low as possible, which is conducive to upright stability. The second is to make the quality as concentrated as possible. Make the vehicle's steering more flexible and reduce the vehicle's moment of inertia. At the same time, the approach angle and departure angle of the car are very important considerations, because the running speed of the car model requires the car model to maintain a certain forward inclination to obtain acceleration. When the car model goes uphill, it also needs to consider the impact of the slope. Hanging the chassis requires a certain distance from the ground while lowering the center of gravity. The battery is the heaviest piece in the entire car. The location of the battery almost determines the height of the center of gravity, the size of the moment of inertia, and the departure angle of the approach angle. In order to reduce the noise of the car to the accelerometer and gyroscope, the sensor should be installed as low as possible.

Design of ATP control system for space optical communication

This article first introduces the significance of studying space optical communication and the current research status at home and abroad, and gives a general discussion on the application prospects and development trends of space optical communication, and elaborates the necessity and importance of conducting optical communication research. Then, the working principle of ATP in space optical communication system is studied, the mathematical model of ATP control system is established according to the actual needs, and the ATP control system design of space optical communication is designed. By selecting appropriate motors and gyroscopes as the actuators and detection elements of the system, substituting the actual parameters for simulation analysis, and correcting and verifying the results, some useful results are obtained. The simulation results show the rationality and effectiveness of the ATP design scheme.

Design and analysis of a new type and normally open hydraulic chuck

To solve the problem that large torque drilling rig requires high performance of the chuck, this paper introduces the composition and working principle of a normally open hydraulic chuck, as well as the design and calculation method of its bearing capacity and clamping force. Through the use of creo2.0/simulate finite element analysis module, finite element analysis is made on the main structure parts of the chuck. The results show that the parameter selection and structure design of the chuck mechanism meet the requirements of use, which provides a guarantee for improving the reliability of the chuck mechanism and the overall performance of the drilling rig.

Project Management

Construction project management is a complicated process. The essential factors for the survival and development of construction enterprises includes focus on construction project management, improve project quality, ensure project progress, reduce project cost and improve economic efficiency. The construction market is fully open and the market competition is more intense, so the construction enterprises should establish the cost, progress, quality of the system management concept, then systemized the enterprise cost, progress and quality management work as a project and emphasize the overall. The cost, progress, quality management of the object, content, methods of analysis and research in order to achieve management innovation under an environment with safety, quality and duration of the case. Strictly control the cost of the project to minimize the project cost and create an invincible position in the market competition.

Qualitative and Quantitative Risk Assessment Method for Fire Safety Accident in Liquefied Natural Gas Storage

Liquefied natural gas (LNG) has the characteristics of low temperature, volatile, flammable and explosive, and its safety issues are being highlighted. The probability and consequences of accident were quantitatively analyzed in combination with the possibility of LNG filling station pump or pipeline spillage. The DEGADIS and LNGFire3 models were used to determine the consequences of the accident. Based on the injury criterion data provided by relevant literature, the article concludes that the personal risk value derived from personal injury level and mortality rate, when compared with personal risk standards of United Kingdom, Netherlands and other countries and institutions, the personal risk value is much lower than the standard limit value, and shows the rationality of establishing 5kW/m2 as the safety distance from critical thermal radiation intensity.

The Problems and Countermeasures in Construction Management

Construction is a multi-type, multi-disciplinary and complex engineering system. In order to smoothly conduct construction process and to achieve the intended goal, it is necessary to carry out construction management in a scientific way. However, in the implementation of the system, there is often mismanagement which caused major safety accidents and the quality of construction has become a general concern. This paper analyzes some problems in the construction site, and proposed solutions to promote standardized law and safety measures for the construction management system.

Design and Development Based on Embedded System

The demand for equipment has been unable to meet the current and future high performance application anddevelopment needs with the rapid development of electronic technology and upgrading of traditional industries inChina. At the same time, intense market competition and technical competition require that the development cycle ofthe product to be as short as possible. Obviously, the software and hardware of embedded system are becoming moreimportant foundation of technological innovation in various fi elds. The embedded system is a combination of advancedcomputer technology, semiconductor technology, electronic technology and the specific application of variousindustries. This determines that it must be a technology-intensive, capital-intensive, highly fragmented and innovativeknowledge integration system. The embedded type is based on the application of computer technology-based hardwareand software can be tailored to adapt to the application system on the function, reliability, cost, size, power and otherstrict requirements of the special computer system. The emergence of consumer appliances and cheap microprocessorsembedded systems will form larger application areas in daily life to as the embedded system usually has low powerconsumption, small size and high integration. Embedded employment is widely embedded in the social needs of largetalent. The content of the paper is clear in the embedded control system overview - development - application writingideas in three chapters gradually. Chapter 1 introduces the defi nition, frame, characteristic, development history, currentsituation and prospect of the embedded control system in detail. The development of the embedded control systemmainly discusses the development steps and methods. The third chapter embedded control system. This paper discussesthe practical application of embedded control system in public life. As the application of these research results in thefi nal summary of the various aspects of the system capacity and analysis of the existing problems for further research toprovide a direction and valuable experience.

Human Resource Risk Identification and Prevention

Modern enterprises are in a time of change and under high degree of uncertainty. There are risks in human resources management of each enterprise, such as recruitment failure and sudden leave or casualties of the key technical staff. These will affect the normal operation of enterprises, these can even cause fatal blow to the enterprise if the problem is serious. Therefore, it is important to establish a sense of risk in the human resources management to prevent human resources risk as an important part of enterprise human resource management, and also important to explore actively about the risk identification and prevention in human resources management, all these are the new direction of theoretical and business research. This paper will elaborate on the above issues, first elaborated on the concept of internal human resources risk and characteristics, followed by risk identification analysis, and then put forward the enterprise human resources risk prevention strategies and response measures.