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Communication terminal, vehicle-mounted terminal and network switching method

A communication terminal and network switching technology, which is applied in the field of communication terminals, can solve problems such as data transmission stalls, and achieve the effect of realizing network switching and avoiding stalls

Active Publication Date: 2020-12-11
ZHEJIANG DAHUA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The vehicle-mounted terminal has passed through China Unicom 3G, China Mobile 4G, and China Telecom 5G successively during the driving process. If the terminal equipment is only installed with a designated operator’s card in general, the data transmission will be stuck due to insufficient coverage of the operating network during driving.

Method used

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  • Communication terminal, vehicle-mounted terminal and network switching method
  • Communication terminal, vehicle-mounted terminal and network switching method
  • Communication terminal, vehicle-mounted terminal and network switching method

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Embodiment Construction

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0027] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0028] See figure 1 , is a schematic structural diagram of an embodiment of the communication terminal of the present invention. Specifically, the communication terminal provided by the present invention includes: a main control circuit 11 , a first communication circuit 12 and a second communication circuit 13 .

[002...

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Abstract

The invention discloses a communication terminal, a vehicle-mounted terminal and a network switching method. The communication terminal comprises a main control circuit, a first communication circuitand a second communication circuit, the first communication circuit and the second communication circuit are electrically connected with the main control circuit, the first communication circuit is used for mounting at least one first SIM card, the second communication circuit is used for mounting at least one second SIM card different from the first SIM card in network, the main control circuit is used for controlling the first communication circuit to communicate with the second communication circuit when detecting that the signal strength of the first SIM card is continuously weakened, or when the signal strength of the first SIM card is smaller than that of the second SIM card, the data transmitted through the first SIM card is switched to be transmitted through the second SIM card. Therefore, the communication terminal can perform data transmission based on the optimal network at any time, network switching is realized, and the phenomenon of jamming in the data transmission process is avoided.

Description

technical field [0001] The invention relates to the field of intelligent communication, in particular to a communication terminal, a vehicle-mounted terminal and a network switching method thereof. Background technique [0002] As we all know, the coverage of mobile networks has not been very uniform. In places where the flow of people is concentrated, mobile network deployment will be concentrated, and network quality operators will also focus on guaranteeing the quality of major operators in remote areas such as suburbs, villages, and farms. uneven. [0003] A certain area has good mobile coverage, and some telecommunications coverage is better. This situation will lead to unstable data transmission of mobile devices due to fluctuations in the operating network. For example. The vehicle-mounted terminal has passed through China Unicom 3G, China Mobile 4G, and China Telecom 5G successively during the driving process. If the terminal equipment is only installed with a des...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W36/30H04W36/00
CPCH04W36/30H04W36/0083H04W36/0085
Inventor 孟伟刘明
Owner ZHEJIANG DAHUA TECH CO LTD