I didn't bring my mobile phone card out of the province, but logged in to bind WeChat. Can I find a route query?

The provincial mobile phone card is pulled out in the local city and brought with you. After returning to the province, the provincial records will not be displayed on the travel itinerary.

The data source of the location query service provided by the travel card is "mobile phone signaling data", which is obtained through the location of the base station where the user's mobile phone is located.

Because each base station has its unique CID (base station number), when the mobile positioning card is inserted into the mobile phone or other LBS product host, the information in engineering mode is stored in a specific area of the host memory every time the mobile phone or LBS product is turned on and connected to the network.

Base station positioning is to obtain some parameters such as CID through a specific program in the engineering mode, and correspond the CID to the area where the base station is located, so as to finally achieve the purpose of mobile base station positioning.

Extended data:

Mobile phone positioning card function:

1, the mobile phone location card can make phone calls, send text messages and recharge, just like ordinary mobile phone location cards.

2, mobile phone positioning card can be used for mobile phone positioning, (mobile phone number only) to prevent the elderly from getting lost, children playing wrong school, such as surfing the Internet, young people often give it to lovers, friends and so on. , but it cannot be used for illegal purposes.

3. When the mobile phone is placed on the target car, it can locate the target car (a cheap mobile phone only costs 100 yuan for a mobile phone), which is equivalent to installing a GPS locator on the vehicle, which is cheap and convenient to locate.

4. When positioning, the data platform of the computer and the mobile phone positioning system combine the electronic map and text description to make clear the position of the object of concern.

5. This card has roaming function and can also be used for remote nursing location. (No roaming charges).

Baidu encyclopedia-mobile phone card

Baidu Encyclopedia-Communication Big Data Travel Card

Baidu encyclopedia-mobile phone positioning card