HS code mapping for re-importation

. Basic steps of system design (1) In-depth understanding and analysis of the process conditions and control requirements of the accused object a. The accused object is the controlled machinery, electrical equipment, production line or production process.

6. Constant value control system The given value remains unchanged, requiring the system output to be close to the system of the given desired value with a certain accuracy. For example, the automatic control system of temperature, pressure, flow rate, liquid level height, motor speed, etc. in the production process belongs to the constant value system.

Briefly discuss the reliability design of the linkage control system of high-rise buildings?

During the final acceptance of firefighting, the fire management department emphasized that the fire control center should set up a manual control cabinet. The purpose is also to establish a hard wiring channel directly linked equipment independent of the fire automatic alarm system bus, so that the fire control center can realize manual and automatic dual control functions. Able to increase the reliability of system response.

Research on the reliability of fire water supply system The reliability of fire water supply systems in high-rise buildings refers to the ability of fire water supply systems in high-rise buildings to complete the prescribed functions under specified conditions and within the specified time. Its reliability has a significant impact on ensuring the fire protection of high-rise buildings.

In addition to commonly used elevators, air conditioners, water supply and drainage, fire fighting and closed-circuit television, there are many new electrical automation equipment, which requires the power distribution system of high-rise buildings to have reliability, high-voltage deep load centers, and electrical automation equipment to prevent fires and ensure safety.

When designing the automatic fire alarm system and fire linkage control system, first of all, it should clarify the architectural characteristics and functional characteristics of the building itself, understand other professional facilities in the fire protection engineering design of the building, and the design requirements of electrical majors, and then according to the relevant specifications Characterization, determine the overall structure of the system.

Remote Intelligent Control System Scheme Design

All household appliances can be controlled by the control host.I am working on a remote intelligent control system now. A plan is designed for you as follows: the remote monitor installs a camera monitoring system, and you can see all the rooms in the house even when you are not at home. Through your mobile phone network, ensure that there are no thieves in the world.

Install intelligent door locks, security cameras, intelligent smoke detectors and other equipment, and realize security control through remote monitoring and management systems such as smartphones. The lighting system uses smart switches or lamps, which can remotely control the lighting system by voice or mobile phone, turn on and off regularly, etc.

The car should first configure the mobile butler one-click start, keyless entry, remote control start, mobile phone car control, and download the App software and install it on the mobile phone. The mobile phone can remotely control the control system software on the car at will, and it can be controlled no matter how far away from the car. Open the mobile butler car intelligent control and click the "Mobile Phone Start" button above.

Intelligent lighting scheme: Intelligent home lighting expert Ziguang lighting expert creates a new realm of home intelligent lighting through intelligent dimming, remote control switch, timing switch, full on and full off and programming combination lighting control and other technologies.

This system can add device nodes at any time according to changes in the home environment, which is convenient to install and realizes the humanized control of smart home.

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List of catalogs of this article:

• 1,HS code mapping for re-importation Smart home control system functional design requirements
• 2, What are the design steps of the automatic control system?
• 3, Briefly discuss the reliability design of the linkage control system of high-rise buildings?
• 4, Remote intelligent control system scheme design

Smart Home Control System Functional Design Requirements

1. When designing a smart home system, the following most practical and basic functions should be integrated according to the user's needs for smart home functions: Including intelligent home appliance control, intelligent lighting control, electric curtain control, anti-theft alarm, access control intercom, gas leakage, etc. At the same time, it can also expand the value-added functions of services such as three-meter copying and video on demand.

2. Cabling, and the stability of the whole smart home system. In terms of design, all smart home system products can be designed, but it is recommended to buy a system that can be compatible with multiple devices and multiple brands according to your needs. There are many products. If you need them, you can access them first and continue to expand them later.

3. The purpose of smart home is to realize the connection between various home devices through wireless connection technology, bringing people a convenience of use. This article will deeply explore the three major considerations of smart home design to help readers better understand the design of smart home. Practicality The first factor that needs to be considered when designing smart home is practicality.

4. Simplification. In essence, smart home improves the efficiency of use and optimizes the user experience. Therefore, the operation is convenient and simple to ensure that consumers can use smart home products at the lowest cost of use and learning cost.

5. The smart home system integrates facilities related to home life through safety prevention technology, automatic control technology, audio and video technology - building efficient residential facilities andThe management system of family schedule affairs - improve home safety, convenience, comfort and artistry - and realize an environmentally friendly and energy-saving living environment.

What are the design steps of the automatic control system?

1. Establish a mathematical model and analyze the dynamic and steady-state performance of the system; designControl system, analyze the system performance after adding control, there are many specific control methods, such as PID, adaptive control, optimal control, robust control, etc. The control structure includes single-loop feedback control, feedforward-series control, selective control, decoupling control, etc.

2. The following seven steps are required for the design of the PLC control system: system design and equipment selection a. Analyze the controlled equipment or system. The main purpose of PLC is to control external systems. This system may be a single machine, a group or a production process.

3. The steps are: analyze the control requirements according to the process, clarify the control tasks, and formulate the technical conditions for the control system design. Determine the required user input device, output device and control object driven by the output device.

4. Based on this, a water-saving irrigation automatic control system design scheme is proposed, and a single-chip microcomputer-based water-saving irrigation automatic control system is designed, which has the function of real-time display of detection data and real-time uploading of detection data, and can be based on the collected environmental parameters of crop growth and the required water Quantity to control the time and flow of water supply.

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