CN113905409A - Terminal accessibility detection method, device, network equipment and storage medium - Google Patents
Terminal accessibility detection method, device, network equipment and storage medium Download PDFInfo
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- CN113905409A CN113905409A CN202111174911.2A CN202111174911A CN113905409A CN 113905409 A CN113905409 A CN 113905409A CN 202111174911 A CN202111174911 A CN 202111174911A CN 113905409 A CN113905409 A CN 113905409A
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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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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
- H04W28/18—Negotiating wireless communication parameters
Abstract
The embodiment of the invention discloses a method and a device for detecting accessibility of a terminal, network equipment and a storage medium. The method comprises the following steps: acquiring a target terminal identifier of a target Internet of things terminal; then determining a target activity duration from a preset corresponding relation between the terminal identification and the activity duration according to the target terminal identification; acquiring the message arrival time of the last uplink message corresponding to the target terminal identifier from a preset uplink message database; judging whether the time interval between the current time and the message arrival time is less than the target activity duration or not to obtain a judgment result; and finally, determining the accessibility of the target Internet of things terminal according to the judgment result. When the internet of things platform in the embodiment judges the accessibility of the internet of things terminal, the support of a core network is not needed, and only the duration of the activity corresponding to the internet of things terminal needs to be stored, so that when the internet of things platform judges the accessibility of the internet of things terminal by using the scheme, the management cost of the internet of things terminal can be reduced.
Description
Technical Field
The present invention relates to the field of internet technologies, and in particular, to a method and an apparatus for detecting reachability of a terminal, a network device, and a storage medium.
Background
Currently, a Narrow-Band Internet of Things (NB-IoT) is used as a solution for LPWA (low power consumption wide coverage), which can connect and manage objects, and open up more business profitable models for operators, creating more business values.
In order to achieve the purpose of reducing the Power consumption of the terminal, a Power Saving Mode (PSM) scheme is introduced into the NB-IoT, when the terminal of the internet of things is in the PSM state, the terminal of the internet of things does not receive any Network paging, at this time, the terminal of the internet of things is in an unreachable state, Data, short messages, and calls do not come, but the terminal of the internet of things is still in a registered state in the Network, and does not need to re-attach or re-establish a Public Data Network (PDN) connection, and can wake up through an uplink service or a periodic Tracking Area Update (TAU).
When the internet of things platform needs to send downlink data to the internet of things terminal, whether the internet of things terminal is in a reachable state needs to be detected, and at present, when the reachability of the internet of things terminal is determined, the judgment needs to be carried out by relying on signaling data in a core network. For the internet of things platform, the accessibility of the internet of things terminal acquired by the method needs to be managed through the core network, and the management cost is high.
Disclosure of Invention
The embodiment of the invention provides a method and a device for detecting accessibility of a terminal, network equipment and a storage medium, which can reduce the management cost of an Internet of things terminal.
In a first aspect, an embodiment of the present invention provides a method for detecting reachability of a terminal, which is applied to a platform of an internet of things, and includes: acquiring a target terminal identification of a target Internet of things terminal, wherein the target Internet of things terminal is an Internet of things terminal needing reachability detection;
determining a target activity duration from a preset corresponding relation between the terminal identification and the activity duration according to the target terminal identification;
acquiring the message arrival time of the last uplink message corresponding to the target terminal identifier from a preset uplink message database;
judging whether the time interval between the current time and the message arrival time is smaller than the target activity duration or not to obtain a judgment result;
and determining the accessibility of the target Internet of things terminal according to the judgment result.
In a second aspect, an embodiment of the present invention provides a method for detecting reachability of a terminal, which is applied to a terminal of an internet of things, and includes:
based on an LWM2M protocol, performing network residence negotiation with a core network according to a preset activity duration, and determining a current activity duration;
judging whether the current activity duration is the same as the historical activity duration in the local memory;
if the current activity duration is different from the historical activity duration, generating an update message according to the current activity duration, wherein the update message comprises an original positioning path field and the current activity duration;
and sending the updating message to an Internet of things platform so that the Internet of things platform detects the accessibility of a target Internet of things terminal according to the current activity duration in the updating message, wherein the target Internet of things terminal is the sending terminal of the updating message.
In a third aspect, an embodiment of the present invention further provides a device for detecting reachability of a terminal, where the device includes:
the determining unit is used for performing network residence negotiation with a core network according to preset activity duration based on an LWM2M protocol, and determining the current activity duration;
the first judging unit is used for judging whether the current activity duration is the same as the historical activity duration in the local memory;
a generating unit, configured to generate an update message according to the current activity duration if the current activity duration is different from the historical activity duration, where the update message includes an original positioning path field and the current activity duration;
the first sending unit is used for sending the updating message to an Internet of things platform so that the Internet of things platform can detect the accessibility of a target Internet of things terminal according to the current activity duration in the updating message, and the target Internet of things terminal is the sending terminal of the updating message.
In a fourth aspect, an embodiment of the present invention further provides another apparatus for detecting reachability of a terminal, where the apparatus includes:
the system comprises a first acquisition unit and a second acquisition unit, wherein the first acquisition unit is used for acquiring a target terminal identifier of a target Internet of things terminal, and the target Internet of things terminal is an Internet of things terminal needing reachability detection;
the second determining unit is used for determining the target activity duration from the corresponding relation between the preset terminal identification and the activity duration according to the target terminal identification;
a second obtaining unit, configured to obtain, from a preset uplink packet database, packet arrival time of a last uplink packet corresponding to the target terminal identifier;
the second judging unit is used for judging whether the time interval between the current time and the message arrival time is smaller than the target activity duration or not to obtain a judgment result;
and the third determining unit is used for determining the accessibility of the target Internet of things terminal according to the judgment result.
In a third aspect, an embodiment of the present invention further provides a network device, which includes a memory and a processor, where the memory stores a computer program, and the processor implements the method in the first aspect or the second aspect when executing the computer program.
In a fourth aspect, the present invention also provides a computer-readable storage medium, which stores a computer program, the computer program comprising program instructions, which when executed by a processor, implement the method of the first or second aspect.
The embodiment of the invention provides a method and a device for detecting accessibility of a terminal, network equipment and a storage medium. Wherein the method comprises the following steps: acquiring a target terminal identification of a target Internet of things terminal, wherein the target Internet of things terminal is an Internet of things terminal needing reachability detection; then determining a target activity duration from a preset corresponding relation between the terminal identification and the activity duration according to the target terminal identification; acquiring the message arrival time of the last uplink message corresponding to the target terminal identifier from a preset uplink message database; judging whether the time interval between the current time and the message arrival time is less than the target activity duration or not to obtain a judgment result; and finally, determining the accessibility of the target Internet of things terminal according to the judgment result. The internet of things platform in the embodiment stores the corresponding activity duration for each internet of things terminal in the corresponding relation between the preset terminal identifier and the activity duration, when the accessibility of the internet of things terminal is judged, the activity duration corresponding to the internet of things terminal is adopted for judgment, the support of a core network is not needed, and the internet of things platform only needs to store the activity duration corresponding to the internet of things terminal, so that when the internet of things platform is used for judging the accessibility of the internet of things terminal, the management cost of the internet of things terminal can be reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic view of an application scenario of a method for detecting reachability of a terminal according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of a method for detecting reachability of a terminal according to an embodiment of the present invention;
fig. 3 is another schematic flow chart of a method for detecting reachability of a terminal according to an embodiment of the present invention;
fig. 4 is another interaction diagram of the method for detecting reachability of a terminal according to the embodiment of the present invention;
fig. 5 is a schematic block diagram of a terminal reachability detection apparatus provided in an embodiment of the present invention;
fig. 6 is a schematic block diagram of a terminal reachability detection apparatus provided in another embodiment of the present invention;
fig. 7 is a schematic block diagram of a terminal reachability detection apparatus provided in another embodiment of the present invention;
fig. 8 is a schematic block diagram of a terminal reachability detection apparatus provided in another embodiment of the present invention;
fig. 9 is a schematic block diagram of a network device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.
The embodiment of the invention provides a method and a device for detecting accessibility of a terminal, network equipment and a storage medium.
An execution main body of the terminal reachability detection method may be the terminal reachability detection apparatus provided in the embodiment of the present invention, or a network device integrated with the terminal reachability detection apparatus, where the terminal reachability detection apparatus may be implemented in a hardware or software manner, the network device may be an internet of things terminal or a server, the server may be a server in an internet of things platform, the internet of things terminal is a PSM terminal, and the PSM terminal is a terminal capable of entering a PSM state.
It should be noted that, in this embodiment, the internet of things terminal and the internet of things platform communicate through an NB-IoT network lightweight Machine to Machine (LwM 2M) protocol.
Referring to fig. 1, fig. 1 is a schematic view of an application scenario of a method for detecting reachability of a terminal according to an embodiment of the present invention. The method for detecting the accessibility of the terminal is applied to the terminal 10 and the platform 20 of the internet of things in fig. 1, the terminal 10 of the internet of things accesses the platform 20 of the internet of things by using an LWM2M protocol, then the terminal 10 of the internet of things expands through a positioning path (locationPath) field in an update (update) message in the protocol, and the field is used for simultaneously carrying information of an original locationPath field and relevant parameters (relevant parameters, namely, Active time) of an Access Point (APN)) of a device to the platform 20 of the internet of things. And the platform side of the Internet of things confirms the accessibility of the equipment according to the APN related parameters carried by the equipment and the last uplink data time of the equipment.
The first embodiment is as follows:
the present embodiment describes a terminal reachability detection method in the present embodiment by using an internet of things terminal as an execution subject, please refer to fig. 2, where fig. 2 is a schematic flow chart of the terminal reachability detection method provided in the present embodiment, and the method includes the following steps S110 to S140.
And S110, the Internet of things terminal performs network residence negotiation with the core network according to the preset activity duration based on the LWM2M protocol, and determines the current activity duration.
Specifically, after the internet of things terminal logs in the internet of things platform or reattaches the network in the LWM2M session, the current Active time (Active Timer) is determined based on the network-residence negotiation with the core network according to the preset Active time, where the preset Active time may be an Active time set for the internet of things terminal in the communication chip before the network residence according to the service requirement of the internet of things terminal by the user.
In some embodiments, step S110 includes:
A. and if the network residence negotiation is successful with the core network according to the preset activity duration, determining the preset activity duration as the current activity duration.
Specifically, a preset activity duration input by a user is received, then a relevant parameter of an APN in a communication chip is replaced according to the preset activity duration, then the replaced APN is used for carrying out network residence negotiation with a core network, and if the negotiation is successful, the preset activity duration of the replaced APN is read as the current activity duration.
B. And if the network residence negotiation with the core network fails according to the preset activity duration, performing the network residence negotiation with the core network according to the default activity duration.
The default activity duration is the default activity duration set in a communication chip in the terminal of the internet of things.
C. And if the network residence negotiation with the core network is successful through the default activity duration, determining the default activity duration as the current activity duration.
In some embodiments, if negotiation with the core network fails according to the preset activity duration, a default APN parameter in the NB card needs to be read, the default APN parameter is set with the default activity duration, the communication chip uses the default APN parameter to perform network residence negotiation with the core network, and if the negotiation is successful, the default activity duration in the APN parameter of the communication chip is read as the current activity duration.
The default active duration may be an active duration parameter negotiated with an operator when handling the NB card.
And S120, judging whether the current activity duration is the same as the historical activity duration in the local memory by the Internet of things terminal, if not, executing the step S130, and if so, ending the process.
In this embodiment, the local storage for the historical active duration is a persistent space (a storage medium that can store data and is not lost when power is off, such as a FLASH block, a file system, and the like), and the historical active duration is the active duration obtained by last network residence.
That is, after acquiring a new Active Timer (current Active time), the present embodiment needs to compare with the historical Active Timer in the persistent space.
S130, the Internet of things terminal generates an updating message according to the current activity duration, wherein the updating message comprises an original positioning path field and the current activity duration.
When the value of a new Active Timer is found to change (including the situation from nothing to nothing), an update message is actively sent to the platform of the internet of things, and a locationPath in the message is defined as an original locationPath + a new Active Timer (for example, a content encoding rule of a field of the new locationPath is defined as < original locationPath > + "/" + < Active Timer >. the rule needs the platform side to make a constraint, and the terminal side to perform adaptation).
S140, the Internet of things terminal sends an updating message to the Internet of things platform, so that the Internet of things platform detects the accessibility of the Internet of things terminal according to the current activity duration in the updating message.
And when the IOT equipment receives the successful updating confirmation information of the activity duration fed back by the IOT platform, the successful updating confirmation information based on the activity duration is updated, and the historical activity duration is updated according to the current activity duration.
That is, after the internet of things terminal receives the ACK that the update message succeeds, the old value in the persistent space is covered by the new Active Timer value.
Example two:
the present embodiment describes the terminal reachability detection method in the present embodiment by using an internet of things platform as an execution subject, please refer to fig. 3, where fig. 3 is a schematic flow chart of the terminal reachability detection method provided in the present embodiment, and the method includes the following steps S210 to S250.
S210, the Internet of things platform obtains a target terminal identification of the target Internet of things terminal.
The target Internet of things terminal is an Internet of things terminal needing reachability detection.
When business downlink data at the side of the Internet of things platform needs to be issued to a target Internet of things terminal, a target terminal identifier of the target Internet of things terminal corresponding to the issued data needs to be acquired.
S220, the Internet of things platform determines the target activity duration from the preset corresponding relation between the terminal identification and the activity duration according to the target terminal identification.
Namely, the Active Timer corresponding to the target terminal is obtained.
S230, the Internet of things platform obtains the message arrival time of the last uplink message corresponding to the target terminal identification from a preset uplink message database.
The uplink message database stores the message arrival time of the last uplink message corresponding to each internet of things terminal.
S240, the Internet of things platform judges whether the time interval between the current time and the message arrival time is less than the target activity duration, if so, the step S250 is executed, and if not, the step S260 is executed.
That is, it is determined whether the message arrival time obtained by subtracting the last uplink message from the current time is less than the Active Timer corresponding to the target terminal.
In other embodiments, the reachability of the target internet of things terminal may be determined by judging whether the value of the last uplink message reaching time + Active time is greater than the current time, wherein if the value of the last uplink message reaching time + Active time is greater than the current time, it is determined that the target internet of things terminal is in a reachable state.
And S250, determining the reachable state of the target Internet of things terminal by the Internet of things platform.
Specifically, if the time interval is determined to be smaller than the target activity duration according to the judgment result, the target internet of things terminal is determined to be in the reachable state.
S260, the Internet of things platform determines that the target Internet of things terminal is in a PSM state.
And if the time interval is determined to be greater than or equal to the target activity duration according to the judgment result, determining that the target Internet of things terminal is in a PSM state and is in an unreachable state.
In some embodiments, when it is determined that the target internet of things terminal is in a reachable state, service downlink data needs to be sent to the target internet of things terminal; then receiving feedback data generated by the target Internet of things terminal according to the service downlink data; and processing the target service according to the feedback data.
For example, if the internet of things platform needs to update a target application in a target internet of things terminal, a version acquisition request (service downlink data) of the target application needs to be sent to the target internet of things terminal, and after the target internet of things terminal receives the version acquisition request of the target application, feedback data is sent to the internet of things platform, where the feedback data includes version information of the target application in the internet of things terminal, and the internet of things platform determines whether the version information in the feedback data is the latest version, and if the version information is the latest version (the version corresponding to the version to be updated), the target application in the target internet of things terminal does not need to be updated, and if the version information is not the latest version, the target application in the target internet of things terminal needs to be updated.
And when the target Internet of things terminal is determined to be in the PSM state, the service downlink data is cached.
It should be noted that, when the target internet of things terminal sends the update message to the internet of things platform through the LWM2M protocol, the method further includes: the method comprises the steps that an Internet of things platform obtains an updating message sent by a target Internet of things terminal based on an LWM2M protocol, wherein the updating message comprises an original positioning path field and current activity duration; then, analyzing the updated message to obtain the current activity duration; and updating the target activity duration of the target terminal identifier in the corresponding relation between the terminal identifier and the activity duration according to the current activity duration, and finally sending activity duration updating success confirmation information to the target Internet of things terminal.
Example three:
in this embodiment, a terminal reachability detection method in this embodiment is described in terms of interaction between an internet of things platform and an internet of things terminal, please refer to fig. 4, where fig. 4 is a schematic flow diagram of the terminal reachability detection method provided in this embodiment, and the method includes the following steps S310 to 3130.
And S310, the terminal of the Internet of things performs network residence negotiation with the core network according to the preset activity duration based on the LWM2M protocol, and determines the current activity duration.
The step is the operation of the attached network (Attach) of the terminal of the Internet of things.
Specifically, after the internet of things is attached, a new Active Timer (current activity duration) in the APN parameter when the internet of things terminal accesses the core network is obtained through a communication chip in the internet of things terminal.
S320, the terminal of the Internet of things judges whether the current activity duration is the same as the historical activity duration in the local memory.
After acquiring the new Active Timer, a comparison with the historical Active Timer is needed.
S330, if the current activity duration is different from the historical activity duration, the Internet of things terminal generates an update message according to the current activity duration, and the update message comprises the original positioning path field and the current activity duration.
When the value of the new Active Timer is found to change (including the situation from scratch), the update message is actively sent to the internet of things platform, and the locationPath in the message is defined as the original locationPath + the new Active Timer.
S340, the Internet of things terminal sends an updating message to the Internet of things platform.
And actively sending the update message to the Internet of things platform through an LWM2M protocol.
S350, the Internet of things platform obtains the current activity duration and the corresponding target terminal identification through analyzing the updating message, wherein the update message also carries the target terminal identification.
The Internet of things platform analyzes the original locationPath and the new Active Timer in the update message through updating the encoding rule of the message, wherein the processing flow of the original locationPath field is consistent with the original business processing flow.
And S360, the Internet of things platform updates the target activity duration of the target terminal identifier in the corresponding relation between the terminal identifier and the activity duration according to the current activity duration.
At this time, a new Active timer value needs to be stored as an Lwm2m session parameter (the parameter is only significant in an Lwm2m session) on the internet of things platform side, and when the internet of things platform obtains the current activity duration and the target terminal identifier corresponding to the current activity duration through analysis, the target activity duration (including from nothing to anything) of the target terminal identifier in the correspondence between the terminal identifier and the activity duration is updated according to the current activity duration.
S370, the Internet of things platform sends the activity duration updating success confirmation information to the Internet of things terminal.
And after the new Active timer is stored in the Internet of things platform, the ACK is fed back to the corresponding Internet of things terminal.
And S380, the Internet of things terminal updates the successful confirmation information based on the activity duration and updates the historical activity duration according to the current activity duration.
After receiving the ACK fed back by the internet of things platform, the old value in the persistent space (local storage) is covered with the new Active Timer value.
And S390, the Internet of things platform acquires a target terminal identifier of the Internet of things terminal, and the Internet of things terminal is the Internet of things terminal needing reachability detection.
When business downlink data at the side of the Internet of things platform needs to be issued to a target Internet of things terminal, a target terminal identifier of the Internet of things terminal corresponding to the issued data needs to be acquired.
S3100, the Internet of things platform determines the target activity duration from the preset corresponding relation between the terminal identification and the activity duration according to the target terminal identification.
Namely, the Active Timer corresponding to the target terminal is obtained.
S3110, the Internet of things platform obtains the message arrival time of the last uplink message corresponding to the target terminal identifier from a preset uplink message database.
The uplink message database stores the message arrival time of the last uplink message corresponding to each internet of things terminal.
And S3120, the Internet of things platform judges whether the time interval between the current time and the message arrival time is less than the target activity duration, and obtains a judgment result.
That is, it is determined whether the message arrival time obtained by subtracting the last uplink message from the current time is less than the Active Timer corresponding to the target terminal.
In other embodiments, the reachability of the target internet of things terminal may be determined by judging whether the value of the last uplink message reaching time + Active time is greater than the current time, wherein if the value of the last uplink message reaching time + Active time is greater than the current time, it is determined that the target internet of things terminal is in a reachable state.
And S3130, determining the accessibility of the Internet of things terminal according to the judgment result by the Internet of things platform.
Specifically, if the time interval is determined to be smaller than the target activity duration according to the judgment result, determining that the target Internet of things terminal is in a reachable state; and if the time interval is determined to be greater than or equal to the target activity duration according to the judgment result, determining that the target Internet of things terminal is in a PSM state.
In summary, the internet of things platform may obtain a target terminal identifier of a target internet of things terminal, where the target internet of things terminal is an internet of things terminal that needs reachability detection; then determining a target activity duration from a preset corresponding relation between the terminal identification and the activity duration according to the target terminal identification; acquiring the message arrival time of the last uplink message corresponding to the target terminal identifier from a preset uplink message database; judging whether the time interval between the current time and the message arrival time is less than the target activity duration or not to obtain a judgment result; and finally, determining the accessibility of the target Internet of things terminal according to the judgment result. The internet of things platform in the embodiment stores the corresponding activity duration for each internet of things terminal in the corresponding relation between the preset terminal identifier and the activity duration, when the accessibility of the internet of things terminal is judged, the activity duration corresponding to the internet of things terminal is adopted for judgment, the support of a core network is not needed, and the activity duration corresponding to the internet of things terminal only needs to be stored, so that when the internet of things platform is used for judging the accessibility of the internet of things terminal, the management cost of the internet of things terminal can be reduced.
In some prior art, the internet of things platform determines whether the internet of things terminal is in an accessible state by using a fixed time interval (activity duration). That is, after the platform receives the fixed time interval of the last uplink message of the internet of things terminal, the equipment is considered to enter the PSM state, and at this time, it is determined that the internet of things terminal is in the unreachable state.
However, for the rationality of the usage of the terminal of the internet of things, the time intervals at which the terminals of the internet of things with different services enter the PSM state should be different, and if the same time interval is set for each terminal to enter the PSM state, the interval time is single, and the service flexibility of the terminal of the internet of things is poor.
The internet of things platform in the scheme stores the corresponding activity duration for different internet of things terminals respectively, the activity duration of the support internet of things terminal is set, and different activity durations are used for judging when the accessibility of different internet of things terminals is judged, so that the business flexibility of the internet of things terminal can be improved.
In addition, according to the scheme, the LWM2M protocol message field is used for expanding to change the protocol implementation of the Internet of things platform and the Internet of things terminal side slightly.
Fig. 5 is a schematic block diagram of a terminal reachability detection apparatus provided in an embodiment of the present invention. As shown in fig. 5, the present invention also provides a terminal reachability detection apparatus corresponding to the terminal reachability detection method in the first embodiment. The terminal reachability detection apparatus includes a unit for executing the above terminal reachability detection method, and the apparatus may be configured in an internet of things terminal. Specifically, referring to fig. 5, the terminal reachability detection apparatus includes a determination unit 501, a judgment unit 502, a generation unit 503, and a transmission unit 504.
A first determining unit 501, configured to perform a network camping negotiation with a core network according to a preset active duration based on an LWM2M protocol, and determine a current active duration;
a first determining unit 502, configured to determine whether the current activity duration is the same as a historical activity duration in a local memory;
a generating unit 503, configured to generate an update message according to the current activity duration if the current activity duration is different from the historical activity duration, where the update message includes an original positioning path field and the current activity duration;
a first sending unit 504, configured to send the update message to an internet of things platform, so that the internet of things platform detects reachability of a target internet of things terminal according to a current activity duration in the update message, where the target internet of things terminal is a sending terminal of the update message.
In some embodiments, the determining unit 501 is specifically configured to:
if the network residence negotiation with the core network is successful according to the preset activity duration, determining the preset activity duration as the current activity duration;
if the network residence negotiation with the core network fails according to the preset activity duration, performing network residence negotiation with the core network according to a default activity duration;
and if the network residence negotiation with the core network is successful through the default activity duration, determining the default activity duration as the current activity duration.
Referring to fig. 6, in some embodiments, the apparatus further comprises:
a first receiving unit 505, configured to receive activity duration update success confirmation information fed back by the internet of things platform;
a first updating unit 506, configured to update the success confirmation information based on the activity duration, and update the historical activity duration according to the current activity duration.
Fig. 7 is a schematic block diagram of a terminal reachability detection apparatus provided in an embodiment of the present invention. As shown in fig. 7, the present invention also provides a terminal reachability detection apparatus corresponding to the terminal reachability detection method of the second embodiment described above. The terminal reachability detection apparatus includes a unit for executing the above terminal reachability detection method, and may be configured in a server of the internet of things platform. Specifically, referring to fig. 7, the terminal reachability detection apparatus includes a first acquisition unit 701, a second determination unit 702, a second acquisition unit 703, a second determination unit 704, and a third determination unit 705.
The first obtaining unit 701 is configured to obtain a target terminal identifier of a target internet of things terminal, where the target internet of things terminal is an internet of things terminal that needs reachability detection;
a second determining unit 702, configured to determine a target active duration from a preset correspondence between a terminal identifier and an active duration according to the target terminal identifier;
a second obtaining unit 703, configured to obtain, from a preset uplink packet database, a packet arrival time of a last uplink packet corresponding to the target terminal identifier;
a second determining unit 704, configured to determine whether a time interval between the current time and the message arrival time is smaller than the target activity duration, so as to obtain a determination result;
a third determining unit 705, configured to determine, according to the determination result, reachability of the target internet of things terminal.
In some embodiments, the third determining unit 705 is specifically configured to:
if the judgment result is that the time interval is smaller than the target activity duration, determining that the target Internet of things terminal is in a reachable state;
and if the judgment result is that the time interval is greater than or equal to the target activity duration, determining that the target Internet of things terminal is in a low power consumption mode PSM state.
Referring to fig. 8, in some embodiments, the apparatus further includes:
a second sending unit 706, configured to send service downlink data to the target internet of things terminal;
a second receiving unit 707, configured to receive feedback data generated by the target internet of things terminal according to the service downlink data;
a processing unit 708, configured to process the target service according to the feedback data.
In some embodiments, the apparatus further comprises:
a third obtaining unit 709, configured to obtain an update message sent by the target internet of things terminal based on the LWM2M protocol, where the update message includes an original positioning path field and a current active duration;
an analyzing unit 710, configured to obtain the current activity duration by analyzing the update packet;
a second updating unit 711, configured to update the target activity duration of the target terminal identifier in the correspondence between the terminal identifier and the activity duration according to the current activity duration;
a third sending unit 712, configured to send an activity duration update success confirmation message to the target internet of things terminal.
It should be noted that, as can be clearly understood by those skilled in the art, the specific implementation processes of the terminal reachability detection apparatus and the units may refer to the corresponding descriptions in the foregoing method embodiments, and for convenience and conciseness of description, detailed descriptions are omitted here.
The above-described terminal reachability detection apparatus may be implemented in the form of a computer program that can be run on a network device as shown in fig. 9.
Referring to fig. 9, fig. 9 is a schematic block diagram of a network device according to an embodiment of the present invention. The network device 900 may be an internet of things terminal or a server in an internet of things platform.
Referring to fig. 9, the network device 900 includes a processor 902, memory, and a network interface 905 connected by a system bus 901, wherein the memory may include a non-volatile storage medium 903 and an internal memory 904.
The non-volatile storage medium 903 may store an operating system 9031 and a computer program 9032. The computer program 9032 includes program instructions that, when executed, cause the processor 902 to perform a terminal reachability detection method.
The processor 902 is used to provide computing and control capabilities to support the operation of the overall network device 900.
The internal memory 904 provides an environment for running a computer program 9032 in the nonvolatile storage medium 903, and the computer program 9032, when executed by the processor 902, may cause the processor 902 to execute a terminal reachability detection method.
The network interface 905 is used for network communication with other devices. Those skilled in the art will appreciate that the structure shown in fig. 9 is a block diagram of only a portion of the structure associated with the inventive arrangements and does not constitute a limitation on the network device 900 to which the inventive arrangements are applied, and that a particular network device 900 may include more or less components than those shown, or combine certain components, or have a different arrangement of components.
When the network device is an internet of things terminal, the processor 902 is configured to run a computer program 9032 stored in the memory, so as to implement the following steps:
based on an LWM2M protocol, performing network residence negotiation with a core network according to a preset activity duration, and determining a current activity duration;
judging whether the current activity duration is the same as the historical activity duration in the local memory;
if the current activity duration is different from the historical activity duration, generating an update message according to the current activity duration, wherein the update message comprises an original positioning path field and the current activity duration;
and sending the updating message to an Internet of things platform so that the Internet of things platform detects the accessibility of a target Internet of things terminal according to the current activity duration in the updating message, wherein the target Internet of things terminal is the sending terminal of the updating message.
In some embodiments, when implementing the step of performing the network camping negotiation with the core network according to the preset active duration and determining the current active duration, the processor 902 specifically implements the following steps:
if the network residence negotiation with the core network is successful according to the preset activity duration, determining the preset activity duration as the current activity duration;
if the network residence negotiation with the core network fails according to the preset activity duration, performing network residence negotiation with the core network according to a default activity duration;
and if the network residence negotiation with the core network is successful through the default activity duration, determining the default activity duration as the current activity duration.
In some embodiments, after the step of sending the update message to the internet of things platform is implemented, the processor 902 further implements the following steps:
receiving successful updating confirmation information of the activity duration fed back by the Internet of things platform;
and updating the historical activity duration according to the current activity duration based on the activity duration updating success confirmation information.
When the network device is a server in an internet of things platform, the processor 902 is configured to run a computer program 9032 stored in the memory, so as to implement the following steps:
acquiring a target terminal identification of a target Internet of things terminal, wherein the target Internet of things terminal is an Internet of things terminal needing reachability detection;
determining a target activity duration from a preset corresponding relation between the terminal identification and the activity duration according to the target terminal identification;
acquiring the message arrival time of the last uplink message corresponding to the target terminal identifier from a preset uplink message database;
judging whether the time interval between the current time and the message arrival time is smaller than the target activity duration or not to obtain a judgment result;
and determining the accessibility of the target Internet of things terminal according to the judgment result.
In some embodiments, when the processor 902 implements the step of determining the reachability of the target internet of things terminal according to the determination result, the following steps are specifically implemented:
if the judgment result is that the time interval is smaller than the target activity duration, determining that the target Internet of things terminal is in a reachable state;
and if the judgment result is that the time interval is greater than or equal to the target activity duration, determining that the target Internet of things terminal is in a low power consumption mode PSM state.
In some embodiments, after the step of determining that the target internet of things terminal is in the reachable state, the processor 902 further performs the following steps:
sending service downlink data to the target Internet of things terminal;
receiving feedback data generated by the target Internet of things terminal according to the service downlink data;
and processing the target service according to the feedback data.
In some embodiments, the processor 902 further implements the steps of:
acquiring an update message sent by a target Internet of things terminal based on an LWM2M protocol, wherein the update message comprises an original positioning path field and current activity duration;
obtaining the current activity duration by analyzing the update message;
updating the target activity duration of the target terminal identifier in the corresponding relation between the terminal identifier and the activity duration according to the current activity duration;
and sending an activity duration updating success confirmation message to the target Internet of things terminal.
It should be understood that, in the embodiment of the present invention, the Processor 902 may be a Central Processing Unit (CPU), and the Processor 902 may also be other general-purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other Programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like. Wherein a general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
It will be understood by those skilled in the art that all or part of the flow of the method implementing the above embodiments may be implemented by a computer program instructing associated hardware. The computer program includes program instructions, and the computer program may be stored in a storage medium, which is a computer-readable storage medium. The program instructions are executed by at least one processor in the computer system to implement the flow steps of the embodiments of the method described above.
Accordingly, the present invention also provides a storage medium. The storage medium may be a computer-readable storage medium. The storage medium stores a computer program, wherein the computer program comprises program instructions.
In some embodiments, the program instructions, when executed by the processor, cause the processor to perform the steps of:
based on an LWM2M protocol, performing network residence negotiation with a core network according to a preset activity duration, and determining a current activity duration;
judging whether the current activity duration is the same as the historical activity duration in the local memory;
if the current activity duration is different from the historical activity duration, generating an update message according to the current activity duration, wherein the update message comprises an original positioning path field and the current activity duration;
and sending the updating message to an Internet of things platform so that the Internet of things platform detects the accessibility of a target Internet of things terminal according to the current activity duration in the updating message, wherein the target Internet of things terminal is the sending terminal of the updating message.
In some embodiments, when the processor executes the program instruction to implement the step of performing a network camping negotiation with a core network according to a preset active duration, and determining a current active duration, the following steps are specifically implemented:
if the network residence negotiation with the core network is successful according to the preset activity duration, determining the preset activity duration as the current activity duration;
if the network residence negotiation with the core network fails according to the preset activity duration, performing network residence negotiation with the core network according to a default activity duration;
and if the network residence negotiation with the core network is successful through the default activity duration, determining the default activity duration as the current activity duration.
In some embodiments, after the step of sending the update message to the internet of things platform is implemented by the processor executing the program instructions, the following steps are further implemented:
receiving successful updating confirmation information of the activity duration fed back by the Internet of things platform;
and updating the historical activity duration according to the current activity duration based on the activity duration updating success confirmation information.
In other embodiments, the program instructions, when executed by the processor, cause the processor to perform the steps of:
acquiring a target terminal identification of a target Internet of things terminal, wherein the target Internet of things terminal is an Internet of things terminal needing reachability detection;
determining a target activity duration from a preset corresponding relation between the terminal identification and the activity duration according to the target terminal identification;
acquiring the message arrival time of the last uplink message corresponding to the target terminal identifier from a preset uplink message database;
judging whether the time interval between the current time and the message arrival time is smaller than the target activity duration or not to obtain a judgment result;
and determining the accessibility of the target Internet of things terminal according to the judgment result.
In some embodiments, when the processor executes the program instructions to implement the step of determining the reachability of the target internet of things terminal according to the determination result, the following steps are specifically implemented:
if the judgment result is that the time interval is smaller than the target activity duration, determining that the target Internet of things terminal is in a reachable state;
and if the judgment result is that the time interval is greater than or equal to the target activity duration, determining that the target Internet of things terminal is in a low power consumption mode PSM state.
In some embodiments, after executing the program instructions to implement the step of determining that the target internet of things terminal is in the reachable state, the processor further implements the steps of:
sending service downlink data to the target Internet of things terminal;
receiving feedback data generated by the target Internet of things terminal according to the service downlink data;
and processing the target service according to the feedback data.
In some embodiments, the processor further implements the steps of:
acquiring an update message sent by a target Internet of things terminal based on an LWM2M protocol, wherein the update message comprises an original positioning path field and current activity duration;
obtaining the current activity duration by analyzing the update message;
updating the target activity duration of the target terminal identifier in the corresponding relation between the terminal identifier and the activity duration according to the current activity duration;
and sending an activity duration updating success confirmation message to the target Internet of things terminal.
The storage medium may be a usb disk, a removable hard disk, a Read-Only Memory (ROM), a magnetic disk, or an optical disk, which can store various computer readable storage media.
Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the examples described in connection with the embodiments disclosed herein may be embodied in electronic hardware, computer software, or combinations of both, and that the components and steps of the examples have been described in a functional general in the foregoing description for the purpose of illustrating clearly the interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative. For example, the division of each unit is only one logic function division, and there may be another division manner in actual implementation. For example, various elements or components may be combined or may be integrated into another system, or some features may be omitted, or not implemented.
The steps in the method of the embodiment of the invention can be sequentially adjusted, combined and deleted according to actual needs. The units in the device of the embodiment of the invention can be merged, divided and deleted according to actual needs. In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a storage medium. Based on such understanding, the technical solution of the present invention essentially or partially contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a network device (which may be a personal computer, a terminal, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention.
While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and various equivalent modifications and substitutions can be easily made by those skilled in the art within the technical scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A terminal reachability detection method is applied to an Internet of things platform and is characterized by comprising the following steps:
acquiring a target terminal identification of a target Internet of things terminal, wherein the target Internet of things terminal is an Internet of things terminal needing reachability detection;
determining a target activity duration from a preset corresponding relation between the terminal identification and the activity duration according to the target terminal identification;
acquiring the message arrival time of the last uplink message corresponding to the target terminal identifier from a preset uplink message database;
judging whether the time interval between the current time and the message arrival time is smaller than the target activity duration or not to obtain a judgment result;
and determining the accessibility of the target Internet of things terminal according to the judgment result.
2. The method according to claim 1, wherein the determining the reachability of the target internet of things terminal according to the determination result comprises:
if the judgment result is that the time interval is smaller than the target activity duration, determining that the target Internet of things terminal is in a reachable state;
and if the judgment result is that the time interval is greater than or equal to the target activity duration, determining that the target Internet of things terminal is in a low power consumption mode PSM state.
3. The method of claim 1, wherein after determining that the target internet of things terminal is in a reachable state, the method further comprises:
sending service downlink data to the target Internet of things terminal;
receiving feedback data generated by the target Internet of things terminal according to the service downlink data;
and processing the target service according to the feedback data.
4. The method according to any one of claims 1 to 3, further comprising:
acquiring an update message sent by a target Internet of things terminal based on an LWM2M protocol, wherein the update message comprises an original positioning path field and current activity duration;
obtaining the current activity duration by analyzing the update message;
updating the target activity duration of the target terminal identifier in the corresponding relation between the terminal identifier and the activity duration according to the current activity duration;
and sending an activity duration updating success confirmation message to the target Internet of things terminal.
5. A terminal accessibility detection method is applied to a terminal of the Internet of things and is characterized by comprising the following steps:
based on an LWM2M protocol, performing network residence negotiation with a core network according to a preset activity duration, and determining a current activity duration;
judging whether the current activity duration is the same as the historical activity duration in the local memory;
if the current activity duration is different from the historical activity duration, generating an update message according to the current activity duration, wherein the update message comprises an original positioning path field and the current activity duration;
and sending the updating message to an Internet of things platform so that the Internet of things platform detects the accessibility of a target Internet of things terminal according to the current activity duration in the updating message, wherein the target Internet of things terminal is the sending terminal of the updating message.
6. The method of claim 5, wherein the performing a network camping negotiation with a core network according to a preset active duration to determine a current active duration comprises:
if the network residence negotiation with the core network is successful according to the preset activity duration, determining the preset activity duration as the current activity duration;
if the network residence negotiation with the core network fails according to the preset activity duration, performing network residence negotiation with the core network according to a default activity duration;
and if the network residence negotiation with the core network is successful through the default activity duration, determining the default activity duration as the current activity duration.
7. The method according to claim 5 or 6, wherein after sending the update message to the platform of the internet of things, the method further comprises:
receiving successful updating confirmation information of the activity duration fed back by the Internet of things platform;
and updating the historical activity duration according to the current activity duration based on the activity duration updating success confirmation information.
8. A terminal reachability detection apparatus comprising means for performing the method of any of claims 1-4, or comprising means for performing the method of any of claims 5-7.
9. A network device comprising a memory and a processor coupled to the memory; the memory is used for storing a computer program; the processor is adapted to execute a computer program stored in the memory to perform the steps of the method according to any of claims 1-4 or to perform the steps of the method according to any of claims 5-7.
10. A computer-readable storage medium, characterized in that the storage medium stores a computer program which, when being executed by a processor, is adapted to carry out the steps of the method according to any one of claims 1-4 or to carry out the steps of the method according to any one of claims 5-7.
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