What are the data collection technologies?

Data collection technologies include: 1. Sensor collection; 2. Crawler collection; 3. Input collection; 4. Import collection; 5. Interface collection, etc.

#Data collection refers to the process of obtaining data from different sources. Data collection can be divided into different methods according to the type of collected data. The main methods are: sensor collection, crawler collection, entry collection, import collection, interface collection, etc.

(1) Sensor monitoring data: Tong is a word that is widely used now: Internet of Things. Communicate with the system through external hardware devices such as temperature and humidity sensors, gas sensors, and video sensors, and transmit the data monitored by the sensors to the system for collection and use.

(2) The second type is news and information Internet data. You can write a web crawler and set up the data source to crawl the data in a targeted manner.

Because many websites have anti-crawler mechanisms, it is recommended that you use Siyetian agents and change IPs to reduce the probability of being blocked from access using an IP. This is related to the efficiency of our collection. Proxy IP The following points can be met:

①The IP pool is large and the number of IPs extracted for the crawler is large.

②Concurrency should be high: Obtain a large number of IPs in a short period of time to increase the data collected by the crawler.

③IP resources can be used alone. Exclusive IP can directly affect the availability of IP. Exclusive http proxy can ensure that only one user is using each IP at the same time, ensuring the availability and stability of IP.

④Easy to call: Siyetian agent IP has rich API interfaces and is easy to integrate into any program.

When obtaining data through crawlers, you must abide by legal regulations and do not use the obtained data in illegal ways.

In the process of information collection, we often encounter that many websites adopt anti-crawling technology, or because the intensity and speed of collecting website information are too high, too much is brought to the other party's server. pressure, so if you keep using the same proxy IP to crawl this web page, there is a high probability that this IP will be prohibited from accessing. Basically, crawlers cannot get around the problem of crawler proxy IP. At this time, you need Siyetian HTTP proxy To realize the continuous switching of your own IP address to achieve the purpose of normal data capture.

(3) The third method is to enter existing data into the system by using the system entry page.

(4) The fourth way is to develop an import tool for existing batches of structured data to import it into the system.

(5) The fifth way is to collect data from other systems into this system through the API interface.

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