CN114501495A - Network quality detection method, equipment and storage medium - Google Patents
Network quality detection method, equipment and storage medium Download PDFInfo
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- CN114501495A CN114501495A CN202111678737.5A CN202111678737A CN114501495A CN 114501495 A CN114501495 A CN 114501495A CN 202111678737 A CN202111678737 A CN 202111678737A CN 114501495 A CN114501495 A CN 114501495A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/318—Received signal strength
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/364—Delay profiles
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/382—Monitoring; Testing of propagation channels for resource allocation, admission control or handover
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/08—Testing, supervising or monitoring using real traffic
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/02—Access restriction performed under specific conditions
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
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- H04W48/18—Selecting a network or a communication service
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Abstract
The invention discloses a method, a device and a storage medium for detecting network quality, wherein the method comprises the following steps: trying to connect a network according to external SIM card information of an external SIM card of the terminal equipment; if the network connection is successful, monitoring the signal intensity of the terminal equipment, and sending an echo request message to a public network server to acquire network delay; and if the network connection fails or the signal intensity or the network delay does not accord with the preset conditions, selecting an optimal operator to carry out network connection. The method and the device can ensure the stable network quality of the terminal equipment.
Description
Technical Field
The invention relates to the technical field of network quality monitoring, in particular to a method, equipment and a storage medium for detecting network quality.
Background
With the rapid landing of the internet of things technology in the domestic application market, the deployment of the internet of things terminals is distributed all over the country, wherein cellular network communication (such as 4G, 5G and the like) is an extremely important communication mode. The quality of service of a cellular network is highly dependent on the operator base station deployment scenario. China is vast, the conditions that the base station signals of operators are weak or even lost exist in many areas, and the base station coverage conditions of three operators are greatly different in different areas.
In order to solve the problem of poor signals, most of the existing solutions in the industry are to send operation and maintenance engineers to deploy equipment to the site for signal quality testing, but the solution for site measurement of the operation and maintenance engineers is high in cost and long in time period, and is not suitable for occasions with high deployment discreteness of client equipment.
In addition, although part of the existing devices have the dual-card dual-standby function to form network backup, the dual-card dual-standby network backup internet of things terminal still cannot flexibly detect the network service quality of three operators and select the optimal network, in addition, the dual-card dual-standby can increase extra card opening cost and terminal material cost, so that the proportion of the devices with the dual-card dual-standby function in the actually deployed internet of things terminal is very small. Therefore, it is difficult to quickly select an optimal operator by the existing solution; meanwhile, the equipment provider does not know the specific conditions of network quality of operators across the country, and cannot recommend a proper operator SIM card to a customer.
Disclosure of Invention
The invention provides a method, equipment and a storage medium for detecting network quality, and aims to solve the technical problem that the network quality of terminal equipment is unstable.
In order to achieve the above object, the present invention provides a method for detecting network quality, which comprises the following steps:
trying to connect a network according to external SIM card information of an external SIM card of the terminal equipment;
if the network connection is successful, monitoring the signal intensity of the terminal equipment, and sending an echo request message to a public network server to acquire network delay;
and if the network connection fails, or the signal intensity or the network delay does not accord with the preset conditions, selecting the optimal operator from all operators corresponding to the network for network connection.
Optionally, if the signal strength in a preset number of signal periods is smaller than a preset signal strength threshold, or the network delay in the preset number of signal periods is larger than a preset network delay threshold, it is determined that the signal strength and the network delay do not meet a preset condition.
Optionally, the external SIM card is switched to a soft SIM card, where the soft SIM card is a virtualized SIM card that implements a communication function through computer software;
and selecting the optimal operator with the highest network quality through the soft SIM card and carrying out network connection based on the optimal operator.
Optionally, sequentially writing soft SIM card information corresponding to each operator through the soft SIM card and attempting to reconnect the network;
acquiring signal intensity and network delay corresponding to each operator, and respectively comparing the signal intensity with the network delay;
and selecting the optimal operator according to the comparison result and performing network connection.
Optionally, if the network reconnection is successful, uploading the signal intensity and the network delay corresponding to each operator to the cloud server;
and if the network reconnection fails, restarting the terminal equipment, and returning to the step of trying to connect the network according to the external SIM card information of the external SIM card of the terminal equipment.
Optionally, if the signal strength and the network delay corresponding to the external SIM card information satisfy preset conditions;
and delaying the signal intensity and the network corresponding to the information uploaded to the external SIM card to a cloud server.
Optionally, reference signal received power of each operator is obtained respectively;
trying to establish connection with a public network server, and acquiring network feedback data fed back by the public network server;
and respectively comparing the signal receiving power with the network feedback data, wherein the reference signal receiving power corresponds to the signal strength, and the network feedback data corresponds to the network delay.
In this embodiment, the reference signal received power is used as a characterization parameter of the signal strength, and the network feedback data fed back by the public network server is used as a characterization parameter of the network delay.
In order to achieve the above object, the present application further provides a network quality detection apparatus, including:
the external SIM card judging module is used for trying to connect the network according to the external SIM card information of the external SIM card of the terminal equipment;
the signal monitoring module is used for monitoring the signal intensity of the terminal equipment and sending an echo request message to a public network server to acquire network delay if the network connection is successful;
and the optimal operator selection module is used for selecting an optimal operator from all operators corresponding to the network for network connection if network connection fails or the signal intensity or the network delay does not accord with a preset condition.
In order to achieve the above object, the present application further proposes a network quality detection device, which includes a memory, a processor, and a network quality detection program stored in the memory and executable on the processor, and when executed by the processor, the network quality detection program implements the network quality detection method.
In order to achieve the above object, the present application further provides a storage medium, where a network quality detection program is stored, and the network quality detection program is executed by a processor to implement the network quality detection method.
In the method, the terminal equipment tries to connect the network according to the external SIM card information of the external SIM card of the terminal equipment, if the network connection is successful, the signal intensity of the terminal equipment is monitored, an echo request message is sent to a public network server to obtain the network delay, if the network connection is failed or the signal intensity or the network delay is not in accordance with the preset conditions, the optimal operator is selected for network connection, the terminal equipment is not limited to the default operator corresponding to the external SIM card through the mode, but the operator with the best network quality can be selected under the condition that the network quality of the default operator is poor, and the network quality of the terminal equipment is stable.
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In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic block diagram of a network quality detection method according to an embodiment of the present invention;
fig. 2 is a flowchart of a method for detecting network quality according to an embodiment of the present invention;
fig. 3 is a schematic block diagram of a network quality detection method according to an embodiment of the present invention.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, fig. 1 is a schematic diagram of a hardware structure of a network quality detection device according to various embodiments of the present invention. The network quality detection device comprises an execution module 01, a memory 02, a processor 03, a battery system and the like. Those skilled in the art will appreciate that the apparatus shown in fig. 1 may also include more or fewer components than those shown, or combine certain components, or a different arrangement of components. The processor 03 is connected to the memory 02 and the execution module 01, respectively, and the memory 02 stores a network quality detection program, and the network quality detection program is executed by the processor 03 at the same time.
The execution module 01 can try to connect with a network according to the external SIM card information of the external SIM card of the terminal equipment; if the network connection is successful, monitoring the signal intensity of the terminal equipment, and sending an echo request message to a public network server to acquire network delay; and if the network connection fails, or the signal intensity or the network delay does not accord with the preset conditions, selecting the optimal operator from all operators corresponding to the network for network connection. And simultaneously feeds back the above information to the processor 03.
The memory 02 may be used to store software programs and various data. The memory 02 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for a plurality of functions, and the like; the storage data area may store data or information created according to the use of the internet of things terminal, or the like. Further, the memory 02 may include high speed random access memory, and may also include non-volatile memory, such as a plurality of magnetic disk storage devices, flash memory devices, or other volatile solid state storage devices.
The processor 03, which is a control center of the processing platform, is connected to each part of the whole internet of things terminal by using various interfaces and lines, and executes various functions and processing data of the internet of things terminal by running or executing software programs and/or modules stored in the memory 02 and calling data stored in the memory 02, thereby integrally monitoring the detection device of the network quality. Processor 03 may include one or more processing units; preferably, the processor 03 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 03.
Those skilled in the art will appreciate that the network quality probing device configuration shown in fig. 1 does not constitute a limitation of the device and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
Various embodiments of the method of the present invention are presented in terms of the above-described hardware architecture.
With the rapid landing of the internet of things technology in the domestic application market, the deployment of the internet of things terminals is distributed all over the country, wherein cellular network communication (such as 4G, 5G and the like) is an extremely important communication mode. The quality of service of a cellular network is highly dependent on the operator base station deployment scenario. China is vast, the conditions that the base station signals of operators are weak or even lost exist in many areas, and the base station coverage conditions of three operators are greatly different in different areas.
In order to solve the problem of poor signals, most of the existing solutions in the industry are to send operation and maintenance engineers to deploy equipment to the site for signal quality testing, but the solution for site measurement of the operation and maintenance engineers is high in cost and long in time period, and is not suitable for occasions with high deployment discreteness of client equipment.
In addition, although part of the existing devices have the dual-card dual-standby function to form network backup, the dual-card dual-standby network backup internet of things terminal still cannot flexibly detect the network service quality of three operators and select the optimal network, in addition, the dual-card dual-standby can increase extra card opening cost and terminal material cost, so that the proportion of the devices with the dual-card dual-standby function in the actually deployed internet of things terminal is very small. Therefore, it is difficult to quickly select an optimal operator by the existing solution; meanwhile, the equipment provider does not know the specific conditions of network quality of operators across the country, and cannot recommend a proper operator SIM card to a customer.
In order to solve the above problem, the present application provides a method for detecting network quality, and referring to fig. 2, in a first embodiment of the method for detecting network quality of the present invention, the method for detecting network quality includes:
step S100, trying to connect a network according to the external SIM card information of the external SIM card of the terminal equipment;
the method for detecting the network quality is applied to terminal equipment, the terminal equipment simultaneously supports an embedded entity external SIM card and a soft SIM card, wherein the external SIM card is a hard SIM card, the hard SIM card is an intelligent card formed by a hardware circuit, the soft SIM card is mainly realized by storing all information originally arranged on the hard SIM in a soft SIM card file through information documentation by a card issuing operator, when the card is issued to a user, only the soft SIM card file is needed to be provided for the user, the user only needs to open and operate the soft SIM card file through a preset soft SIM card application at the terminal, the soft SIM card can realize an air number writing function, the air number writing does not need to pass through equipment such as a card reader, and the real-time switching can be carried out among three operators. In this embodiment, after the terminal device is powered on, the operator code of the external SIM card in the terminal device is first read, and the operator information of the corresponding operator is determined according to the operator code and stored. And attempts to connect to the network based on the external SIM card information in the external SIM card.
Step S200, if the network connection is successful, monitoring the signal intensity of the terminal equipment, and sending an echo request message to a public network server to acquire network delay;
in this embodiment, if the network connection is successful, the network quality of the location where the terminal device is located needs to be further determined, specifically, the signal strength of the terminal device is monitored, an echo request message is periodically sent to a highly reliable public network server, and the network delay is acquired and recorded through feedback information obtained by sending the echo request message. In an embodiment, the terminal device may send three times of ICMP (Internet Control Message Protocol) Echo request messages to the public network server, and respectively record network delays corresponding to the three times of request messages.
Step S300, if the network connection fails, or the signal intensity or the network delay does not accord with the preset conditions, selecting the optimal operator from all operators corresponding to the network for network connection.
In this embodiment, if the network connection is successful and the signal strength and the network delay meet the preset conditions, it may be considered that the network quality condition of the operator corresponding to the external SIM card of the terminal device is good in the local area, so that the external SIM card may be directly applied to perform network connection, and the recorded signal strength and network delay are uploaded to the cloud server for storage, which is used as data accumulation related to the network quality of the location. And if the network connection fails or the signal intensity and the network delay do not accord with preset conditions, selecting the optimal operator to carry out network connection. The preset conditions are preset by a person skilled in the art and used for judging the network quality condition through the recorded signal strength and network delay, and the preset conditions can be adjusted according to actual conditions. If the network connection fails or the signal strength and the network delay do not meet preset conditions, the network quality of the location where the terminal equipment is located is poor, namely, the signal of a local base station of an operator corresponding to the external SIM card is weak or even lost, so that the external SIM card needs to be switched to a soft SIM card in order to ensure that the terminal equipment can normally operate, SIM card information of other two operators is written into the soft SIM card respectively, and the network is tried to be deactivated through the SIM card information of the other two operators; and after the SIM card information of other two operators is connected with the network, acquiring and recording the signal intensity and the network delay corresponding to the other two operators, then comparing the recorded signal intensity with the network delay, and selecting the optimal operator for network connection.
According to the method, the terminal equipment tries to connect with the network according to the external SIM card information of the external SIM card of the terminal equipment, if the network connection is successful, the signal intensity of the terminal equipment is monitored, an echo request message is sent to a public network server to obtain network delay, if the network connection is failed or the signal intensity or the network delay is not in accordance with preset conditions, an optimal operator is selected to carry out network connection, the terminal equipment is not limited to a default operator corresponding to the external SIM card through the mode, but the operator with the best network quality can be selected under the condition that the network quality of the default operator is poor, and the network quality of the terminal equipment is stable.
In an embodiment, the step that the signal strength and the network delay do not meet the preset condition includes:
and if the signal intensity in the continuous preset number of signal periods is smaller than a preset signal intensity threshold value, or the network delay in the continuous preset number of signal periods is larger than a preset network delay threshold value, judging that the signal intensity and the network delay do not accord with preset conditions.
In this embodiment, both the signal strength and the network delay are used to represent the network quality condition of the location where the terminal device is located, and the preset condition is a judgment condition preset by a person skilled in the art and used for judging the network quality condition according to the signal strength and the network delay. Specifically, if the signal strength in three consecutive preset periods is smaller than a preset signal strength threshold value, or the network delay in three consecutive preset periods is greater than a preset network delay threshold value, it is determined that the signal strength and the network delay do not meet the preset condition, otherwise, it is determined that the signal strength and the network delay meet the preset condition. The fact that the preset condition is met means that the network quality condition of the operator corresponding to the external SIM card is locally better, and the fact that the preset condition is not met means that the network quality condition of the operator corresponding to the external SIM card is locally worse. The preset number, the preset network delay threshold and the preset signal strength threshold are all related parameters which are set in advance by a person skilled in the art according to preset conditions and can be adjusted in real time.
Further, if the signal strength in a continuous preset number of signal periods is smaller than a preset signal strength threshold, the signal strength of the operator in the local area is considered to be lower all the time; if the network delay in the continuous preset number of signal periods is larger than the preset network delay threshold value, the network delay of the operator in the local area is considered to be higher all the time; low signal strength and high network delay mean poor network quality and therefore a handover to a better operator is required.
In an embodiment, the step of selecting an optimal operator from all operators corresponding to the network to perform network connection includes:
switching the external SIM card into a soft SIM card, wherein the soft SIM card is a virtualized SIM card for realizing a communication function through computer software;
and selecting the optimal operator with the highest network quality through the soft SIM card and carrying out network connection based on the optimal operator.
In this embodiment, because one external SIM card can only correspond to one operator, when the network quality of the operator corresponding to the external SIM card at the location of the terminal device is poor, numbers of other operators need to be written in by writing numbers over the air by means of the soft SIM card for connection, and therefore the external SIM card needs to be switched to the soft SIM card, and an optimal operator with the highest network quality is selected based on the soft SIM card for network connection. Specifically, the number of each operator can be written in by the soft SIM card, the network of each operator is polled and detected, the network quality condition of each operator is obtained by detection, and the network quality conditions of each operator are compared to select the optimal operator with the highest network quality to serve the terminal device.
In an embodiment, the step of selecting an optimal operator with the highest network quality through the soft SIM card and performing network connection based on the optimal operator includes:
sequentially writing soft SIM card information corresponding to each operator through the soft SIM card and trying to reconnect the network;
acquiring signal intensity and network delay corresponding to each operator, and respectively comparing the signal intensity with the network delay;
and selecting the optimal operator according to the comparison result and performing network connection.
In this embodiment, after the external SIM card is switched to the soft SIM card, the soft SIM card information corresponding to each operator is sequentially written in by the soft SIM card and a network connection is attempted; if the network connection is successful, respectively acquiring the signal intensity and the network delay corresponding to each operator and comparing the signal intensity with the network delay; and if the network connection fails, only obtaining and comparing the signal intensities corresponding to the operators, and selecting the optimal operator according to the comparison result to perform network connection. In an embodiment, after the terminal device is powered on, the external SIM card information of the external SIM card is read, and the default operator is recorded as the china telecom, after the network of the china telecom is connected through the external SIM card, it is found that the network cannot be connected or the network quality is poor after the network is connected, so the external SIM card is switched to the soft SIM card, and the soft SIM card information of the china mobile and the china unicom is sequentially written, and the soft SIM card information is respectively used for trying to connect the networks of the china mobile and the china unicom. The Chinese mobile network is successfully activated, the mean value of the Signal strength RSRP (Reference Signal Receiving Power) obtained by three-time detection is-78 dBm, the terminal equipment passes through a public network server of the Chinese mobile network Ping three times, the network delays fed back are respectively 70ms, 59ms and 69ms, and the Chinese Unicom network fails to be activated, and the value of the Signal strength RSRP is unknown or can not be detected after three-time detection. Obviously, the best network quality of the china mobile can be known by comparison, so the china mobile is selected as the optimal operator, and network connection is performed. By the method, the optimal operator at the location of the terminal equipment can be selected, and long-term stable operation of the terminal equipment is ensured.
In an embodiment, the step of selecting the optimal operator according to the comparison result and performing network connection includes:
if the network is reconnected successfully, uploading the signal intensity and the network delay corresponding to each operator to a cloud server;
and if the network reconnection fails, restarting the terminal equipment, and returning to the step of trying to connect the network according to the external SIM card information of the external SIM card of the terminal equipment.
In the embodiment, after the optimal operator is selected, network connection is performed again based on the optimal operator, if network reconnection is successful, the network connection of the optimal operator can be directly applied, and the signal intensity and the network delay corresponding to each operator, which are collected before, are uploaded to be used as data accumulation of the network quality of the site; if the network connection is failed based on the optimal operator, the terminal equipment is restarted, the step of trying to connect the network according to the external SIM card information of the external SIM card of the terminal equipment is returned, and the optimal operator is selected again.
In an embodiment, the step of monitoring the signal strength of the terminal device and sending an echo request packet to a public network server to obtain the network delay if the network connection is successful includes:
if the signal intensity and the network delay corresponding to the external SIM card information meet preset conditions;
and delaying the signal intensity and the network corresponding to the information uploaded to the external SIM card to a cloud server.
In this embodiment, if the signal strength and the network delay corresponding to the external SIM card installed on the terminal device already satisfy the preset conditions, that is, the network quality of the operator corresponding to the external SIM card is better at the local site, it is not necessary to use the soft SIM card to write numbers in the air to traverse the network quality of other operators, the external SIM card is directly applied, and the signal strength and the network delay corresponding to the external SIM card are uploaded to the cloud server to be used as data accumulation of the network quality at the site.
In an embodiment, the step of obtaining the signal strength and the network delay corresponding to each operator, and comparing the signal strength and the network delay respectively includes:
respectively acquiring reference signal receiving power of each operator;
trying to establish connection with a public network server, and acquiring network feedback data fed back by the public network server;
and respectively comparing the signal receiving power with the network feedback data, wherein the reference signal receiving power corresponds to the signal strength, and the network feedback data corresponds to the network delay.
In this embodiment, the reference signal received power is used as a characterization parameter of the signal strength, and the network feedback data fed back by the public network server is used as a characterization parameter of the network delay.
The invention also provides a device for detecting network quality, which is characterized by comprising:
the external SIM card judging module A10 is used for trying to connect the network according to the external SIM card information of the external SIM card of the terminal equipment;
the signal monitoring module a20 is configured to monitor the signal strength of the terminal device and send an echo request message to a public network server to obtain network delay if the network connection is successful;
an optimal operator selecting module a30, configured to select an optimal operator from all operators corresponding to the network for network connection if network connection fails or the signal strength or the network delay does not meet a preset condition.
The invention also provides a network quality detection device, which includes a memory, a processor, and a network quality detection program stored in the memory and executable on the processor, and is used for executing the method according to the embodiments of the invention.
The invention also proposes a storage medium on which a detection program of the network quality is stored. The storage medium includes a computer-readable storage medium, which may be the Memory in fig. 1, and may also be at least one of a ROM (Read-Only Memory)/RAM (Random Access Memory), a magnetic disk, and an optical disk, where the storage medium includes several instructions to enable an internet of things terminal device (which may be a mobile phone, a computer, a server, an internet of things terminal, or a network device) having a processor to execute the method according to each embodiment of the present invention.
In the present invention, the terms "first", "second", "third", "fourth" and "fifth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and those skilled in the art can understand the specific meanings of the above terms in the present invention according to specific situations.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in multiple embodiments or examples of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although the embodiment of the present invention has been shown and described, the scope of the present invention is not limited thereto, it should be understood that the above embodiment is illustrative and not to be construed as limiting the present invention, and that those skilled in the art can make changes, modifications and substitutions to the above embodiment within the scope of the present invention, and that these changes, modifications and substitutions should be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A method for probing network quality, the method comprising the steps of:
trying to connect a network according to external SIM card information of an external SIM card of the terminal equipment;
if the network connection is successful, monitoring the signal intensity of the terminal equipment, and sending an echo request message to a public network server to acquire network delay;
and if the network connection fails, or the signal intensity or the network delay does not accord with the preset conditions, selecting the optimal operator from all operators corresponding to the network for network connection.
2. The method for detecting network quality as claimed in claim 1, wherein the step of not meeting the predetermined condition of signal strength or network delay comprises:
and if the signal intensity in the continuous preset number of signal periods is smaller than a preset signal intensity threshold value, or the network delay in the continuous preset number of signal periods is larger than a preset network delay threshold value, judging that the signal intensity and the network delay do not accord with preset conditions.
3. The method for detecting network quality as claimed in claim 1, wherein the step of selecting an optimal operator from all operators corresponding to the network for network connection comprises:
switching the external SIM card into a soft SIM card, wherein the soft SIM card is a virtualized SIM card for realizing a communication function through computer software;
and selecting the optimal operator with the highest network quality through the soft SIM card and carrying out network connection based on the optimal operator.
4. The method for detecting network quality according to claim 3, wherein the step of selecting an optimal operator with the highest network quality through the soft SIM card and performing network connection based on the optimal operator comprises:
sequentially writing soft SIM card information corresponding to each operator through the soft SIM card and trying to reconnect the network;
acquiring signal intensity and network delay corresponding to each operator, and respectively comparing the signal intensity with the network delay;
and selecting the optimal operator according to the comparison result and performing network connection.
5. The method for detecting network quality as claimed in claim 4, wherein the step of selecting the optimal operator according to the comparison result and performing network connection comprises the following steps:
if the network is reconnected successfully, uploading the signal intensity and the network delay corresponding to each operator to a cloud server;
and if the network reconnection fails, restarting the terminal equipment, and returning to the step of trying to connect the network according to the external SIM card information of the external SIM card of the terminal equipment.
6. The method for detecting network quality according to claim 1, wherein the step of monitoring the signal strength of the terminal device if the network connection is successful and sending an echo request packet to the public network server to obtain the network delay comprises:
if the signal intensity and the network delay corresponding to the external SIM card information meet preset conditions;
and delaying the signal intensity and the network corresponding to the information uploaded to the external SIM card to a cloud server.
7. The method for detecting network quality according to claim 4, wherein the step of obtaining the signal strength and the network delay corresponding to each operator and comparing the signal strength and the network delay respectively comprises:
respectively acquiring reference signal receiving power of each operator;
trying to establish connection with a public network server, and acquiring network feedback data fed back by the public network server;
and respectively comparing the signal receiving power with the network feedback data, wherein the reference signal receiving power corresponds to the signal strength, and the network feedback data corresponds to the network delay.
In this embodiment, the reference signal received power is used as a characterization parameter of the signal strength, and the network feedback data fed back by the public network server is used as a characterization parameter of the network delay.
8. A device for detecting network quality, comprising:
the external SIM card judging module is used for trying to connect the network according to the external SIM card information of the external SIM card of the terminal equipment;
the signal monitoring module is used for monitoring the signal intensity of the terminal equipment and sending an echo request message to a public network server to acquire network delay if the network connection is successful;
and the optimal operator selection module is used for selecting an optimal operator from all operators corresponding to the network for network connection if network connection fails or the signal intensity or the network delay does not accord with a preset condition.
9. A network quality detection device, comprising a memory, a processor, and a network quality detection program stored in the memory and executable on the processor, wherein the network quality detection program, when executed by the processor, implements the steps of the network quality detection method according to any one of claims 1 to 7.
10. A storage medium, characterized in that the storage medium stores thereon a network quality detection program, which when executed by a processor implements the steps of the network quality detection method according to any one of claims 1 to 7.
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