Machinery import clearance by HS code

List of contents of this article:

• 1,Machinery import clearance by HS code How to monitor the cold storage remotely?
• 2、Gas pipe network remote wireless monitoring system

How to monitor the cold storage remotely?

1. Cold storage remote monitoring, you can change the main control board of the cold storage to a motherboard with GPS remote control function, and then the cold storage can be remotely controlled and monitored through the WeChat applet, and the control panel will analyze whether there is a failure risk according to the operating parameters.

2. It should be possible. Intelligent chips and temperature sensing components need to be installed, as well as intelligent software systems.

3. Real-time temperature printer with remote monitoring can be installed in the cab for temperature monitoring and positioning of refrigerated trucks. It depends on what items are stored and transported, such as: general seafoodThe requirements are qualified for storage and transportation below -18 degrees after quick freezing. If it is fresh vegetables and fruits, etc., it should be in the range of less than 4 degrees and more than 0 degrees. The requirements are different.

4. The installation method is the same, but the minimum starting temperature of the cold storage camera is relatively low, so a self-heating camera should be used. In addition, when the temperature rises, the front lens will have moisture, that is, fog up. Use a camera with automatic defrosting. If you think it is expensive, open the lid by yourself and put in the desiccant. OK.

5. If you want to monitor the temperature in real time in cold chain transportation, you need to install a monitoring system on the vehicle, which is mainly used to monitor and manage the cold chain transportation process, including temperature sensors, RFID, GPS and software management systems. These systems will generate feedback on temperature changes. , the effect of monitoring can be achieved.

6. For temperature and humidity, you can install several measuring points in each cold storage and then upload the network through GPRS. You can achieve centralized monitoring on your computer. Now the camera also has GPRS data uploaded, which can be connected to the temperature and humidity transmitter to realize the centralized monitoring of pictures and numbers.

How to easily complete remote monitoring with Tencent QQ

1. First of all, log in to QQ to select the friend you want to help, and click the dialog box. Then click in the position shown in the picture. Then click "Request to control the other party's computer". After the other party agreed, the network control was built. After the network control is established, you can control the other party's computer, as shown in the figure.

2. Log in to the QQ account on the computer. After the computer logs in to QQ, open the dialog box to control remotely.After opening the friend dialog box you want to control, click the request in the toolbar to control the internal computer. After clicking the request in the toolbar to control the other party's computer, wait for the friend to accept it. After the friend accepts it, you can control the other party's computer.

3. First of all, we need to add the other party's QQ number. You need friends to use qq remote assistance control. Add friends in the lower left corner of the QQ interface, as shown in the figure, click and enter the QQ number to find and add.

Which level is not included in the industrial equipment remote monitoring system architecture? ()

Physical layer. According to the Baidu question bank test questions, which level is not included in the remote monitoring system architecture of industrial equipment? A. Physical layer;B. Perceptual layer; C. Transmission layer; D. Application layer. The answer is A, so it is the physical layer. The physical layer is a layer of OSI. Although it is at the bottom, it is the foundation of the overall open system.

The remote monitoring system architecture of industrial equipment does not include the physical layer, because the specific implementation of the physical layer depends on different network technologies and protocols, such as Ethernet, wireless network, VPN, etc., rather than part of the remote monitoring system architecture of industrial equipment.

Belongs to. The architecture of the industrial equipment remote monitoring system includes the perception layer, the transmission layer and the application layer. The application layer, also known as the application entity, consists of several specific application service elements and one or more public application service elements.

The three-layer structure type of the Internet of Things does not include the session layer, although it is in the Internet of Things systemThe structure has not yet formed a global unified specification, but at present, most literature divides the Internet of Things architecture into three layers, namely the perception layer, the network layer and the application layer.

How to monitor the monitoring system remotely?

Plug the network cable on the video recorder into the switch, and then plug the network cable on the switch into the router.In this way, the video screen can be monitored in real time and monitored remotely.

Fill in the address of the hard disk recorder on the LAN address, and then enter the user name and password to connect. In this way, remote monitoring can basically be carried out in real time, but if you want to access the extranet to achieve network monitoring, you need to apply for a domain name.

Buy a suitable home monitoring system: First of all, you need to buy a monitoring system that suits your family's needs. It is very important to choose a system with mobile phone remote monitoring function, because it will allow you to view the monitoring screen through your mobile phone anytime and anywhere. Install monitoring equipment: Install the monitoring equipment in the area you want to monitor.

Choose the right monitoring equipment: First of all, you need to buy a monitoring system that suits your family's needs.You can choose wireless or wired monitoring equipment, depending on the specific situation and budget of your home.

How to prompt the equipment failure in the remote monitoring system in the central control room

Operation status indication: Different colors or icons are usually used on the interface to indicate the operation of the equipment Line status, for example, green indicates normal status, red indicates abnormal status, yellow indicates shutdown status, etc.

The power supply or network equipment of the monitoring host or camera is broken, so it is suddenly offline. There is a problem with the network, so it can't be accessed. If there is a problem with the line connected to the monitor computer, check the line. There is a problem with the settings of the monitoring software. Check the IP settings of the software.

The central control reports the handling of unresponsive shutdown of on-site equipment: If the equipment is falsely reported, the central control room should be notified for technical processing and a good record should be made. If the system fails, the engineering department or the personnel of the maintenance unit should be notified to repair it in time.

Gas pipeline network remote wireless monitoring system

Overview Gas pipeline network remote monitoring system is a computer-based production process control and scheduling automation system for on-site monitoring and automated management. Remote monitoring mainly uses RTU as the terminal. At present, there are many forms, such as using PSTN, laying special line radio stations, etc.

The natural gas remote monitoring system is mainly composed of dispatch center, natural gas monitoring center, communication platform, natural gas remoteIt is composed of measurement and control terminals, measurement (flowmeter, pressure sensor, etc.) equipment, ventilation equipment, etc.

Pressure isolation station: It is used for water supply enterprises to remotely monitor the water supply network. Staff can remotely monitor the pressure and flow of the city's water supply network in the water department dispatch center. Scientifically direct the start and stop of water supply equipment in various water plants to ensure the balance of water supply pressure and stable flow; timely detect and predict the occurrence of pipe burst accidents.

Petroleum industry: remote monitoring of oil and gas wells; GPRS remote oilfield automation detection and monitoring system, gas pipeline network monitoring system scheme, municipal industry: street lamp remote monitoring and management, pipeline network remote monitoring, urban energy consumption monitoring, environmental protection industry: pollution source monitoring, atmospheric environment monitoring, noise monitoring , dust monitoring.

The method of remote monitoring of the hard disk recorder can be used normally after opening ADSL, and the user name and password can be remembered.

Remote monitoring and control: By establishing a remote monitoring system, the operation status of the gas transmission and distribution system can be monitored and controlled in real time. Operators can carry out real-time monitoring, troubleshooting and operation control of the system through remote terminal equipment to improve operational efficiency and safety.