The design principles of the image acquisition system are

Principles of system design

The overall design of the system should be based on the design ideas of system engineering, so that the developed system meets the overall requirements of scientific, rationalization and economy. The following basic principles are generally followed.

(1) Completeness

Completeness mainly refers to the system’s full functionality, complete, to meet the needs of users, the system should have data acquisition, management, processing, querying, editing, displaying, analyzing and outputting functions.

(2) systematic

The use of GIS software development system, spatial data and attribute data must be able to organically combine into one, a variety of parameters can be transmitted to each other.

(3) Reliability

The reliability of the system consists of two aspects, one is the security of the system operation, the system must ensure that the long-term safe, reliable and stable operation; the second is the use of GIS software for the development of the collection of data accuracy reliability and integrity of the symbol content.

(4) Practicality

System data organization is flexible to meet the needs of different applications and analysis. The system is truly able to solve the user’s concerns, for production practice, research and teaching services.

(5) Expandability

Taking into account the computer technology, the user side of the future development, the system should be designed using a modular structure design, the independence of the module is strong, the module increases, decreases or modifies the impact on the whole system is very small, to facilitate the improvement of the system, expansion, so that the system is in the process of continuous improvement, and is conducive to the system’s expansion and improvement.

(6) easy to operate

The characteristics of computer technology and the direction of development determines that it must be convenient for users to use, to save time and money, improve efficiency, only then has its value and market. System users of varying degrees of literacy, low education accounted for a large proportion, so the system must have a friendly user interface to facilitate user operation, easy for users to learn to master (Mao Shanjun et al., 2003).

What should be the principles of video image acquisition

I’m sorry, I’m not too sure about the specific principles of video image acquisition at the moment, but I can provide you with some considerations about video image acquisition.

1. Define the purpose. Prior to video image acquisition, it is important to be clear about the purpose and goals of the acquisition. This helps to identify the specific data that needs to be captured and how that data will be captured.

2. Choose the right equipment. According to the type of data to be captured and the objectives, select the appropriate equipment such as cameras and microphones for acquisition.

3. Ensure adequate lighting. Light is one of the important factors affecting video quality, so make sure the capture scene is well lit to avoid overexposure or underexposure.

4. Choose the right shooting angle. Choose the right shooting angle and position to better capture the characteristics and performance of the target object.

5. Maintain stability. Use a tripod or other support device to fix the camera to ensure the stability and clarity of the video image.

6. Determine the resolution and frame rate. According to the needs and application scenarios, choose the appropriate resolution and frame rate for video capture.

7. Good data storage and management. The captured video data needs to be properly stored and managed to avoid data loss or tampering.

The above information is for reference only, it is recommended to consult with relevant professionals for more comprehensive and accurate information.

How to realize the user to scan the picture above the QR code to generate their own unique avatar picture

: 1, into the WeChat interface, select “I”. 2, click on “avatar”. 3,Then click on “My QR Code”. 4,Next, click on the “three dots” in the upper right corner. 5,Then click “Change Style”.

What are the principles of the design of test systems

[Principles of the design of test systems]

1, the principle of sensitivity distribution and error distribution: the design of the test system should take into account the accuracy of the test instrument, the test system has been selected structural type, together with the correct allocation of the sensitivity of each link and the distribution of error.

2, the formation of the basic principles of the measurement system: the sensor, conditioning circuits, data acquisition system into a measurement system is the basic principle of the basic parameters of the measurement system, static performance and dynamic performance are to meet the pre-specified requirements.