CN111800810B - Intelligent device and system and method for recovering abnormity of WCN module thereof - Google Patents

Intelligent device and system and method for recovering abnormity of WCN module thereof Download PDF

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Publication number
CN111800810B
CN111800810B CN202010620806.6A CN202010620806A CN111800810B CN 111800810 B CN111800810 B CN 111800810B CN 202010620806 A CN202010620806 A CN 202010620806A CN 111800810 B CN111800810 B CN 111800810B
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module
wcn
sub
service
abnormal
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CN111800810A (en
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孟超
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Spreadtrum Communications Shanghai Co Ltd
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Spreadtrum Communications Shanghai Co Ltd
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Priority to PCT/CN2021/088908 priority patent/WO2022001313A1/en
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Priority to US18/148,090 priority patent/US20230133272A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/04—Arrangements for maintaining operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/06—Management of faults, events, alarms or notifications
    • H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
    • H04L41/0659—Management of faults, events, alarms or notifications using network fault recovery by isolating or reconfiguring faulty entities
    • H04L41/0661—Management of faults, events, alarms or notifications using network fault recovery by isolating or reconfiguring faulty entities by reconfiguring faulty entities
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/50—Service provisioning or reconfiguring

Abstract

The invention discloses intelligent equipment and a system and a method for recovering an abnormal condition of a WCN module thereof. The system comprises an AP side module and a WCN module, wherein the AP side module comprises system services, WCN services and a driving module, the WCN module comprises WCN firmware, and the WCN services comprise at least one sub-business service; the driving module is used for identifying the sub-service of the abnormal event by inquiring the equipment node in the driving module according to a preset mechanism; the driving module is also used for notifying the abnormal sub-business service through an active reporting mechanism after identifying the sub-business generating the abnormal event; the abnormal sub-business service is a sub-business service corresponding to the sub-business with the abnormal event; and the abnormal sub-business service is used for performing abnormal recovery by adopting a restarting mechanism in the abnormal sub-business service based on the abnormal event. The intelligent equipment and the WCN module abnormal recovery system and method thereof provided by the invention can find the WCN abnormality in time, and the abnormal recovery can keep the stability and reliability of the system, thereby realizing the effect that a user does not sense the occurrence of the abnormality.

Description

Intelligent device and WCN module abnormity recovery system and method thereof
Technical Field
The invention belongs to the technical field of wireless communication, and particularly relates to intelligent equipment and a system and a method for recovering an abnormal WCN module of the intelligent equipment.
Background
The main body of the intelligent device with the wireless communication module is designed to be an AP (application processor) module + WCN (wireless communication network) module, an operating System such as Android or Linux is operated on the AP side, and the WCN module at least realizes a wireless communication function such as Wi-Fi (wireless Internet access), Bluetooth, FM (frequency modulation), GPS (Global Positioning System) and the like. The WCN module in the existing smart phone generally integrates a Wi-Fi, bluetooth, FM, GPS four-in-one wireless communication function, and if the WCN module has Crash (Crash type abnormality), the system is required to restart and recover the WCN module, so as to achieve the purpose of normal use. If not, the function of the WCN module is unavailable, which seriously affects the user experience.
Fig. 1 is an architecture diagram of a conventional system for abnormal recovery of WCN modules. Wherein, the WCN module is represented as Firmware in FIG. 1 and is located in Vendor partition; the specific function implementation module of the WCN module is located in the System partition, and is a WCND (wcndebaug, WCN debug) module in fig. 1, that is, the System partition needs to learn about a Crash event occurring in the WCN module first, and then performs exception recovery. When the WCN module Service is enabled by using the system Service or the APP (application program) of the WCN module function, the WCN Service process starts to be started, and the APP module or other system services are communicated with the WCN Service in an API (application program interface) mode to realize a specific wireless communication function; the WCN Service communicates with a Driver (Driver) of a Kernel layer of a system through a Netlink (a communication mechanism) to realize command processing of specific functions; the System partition uses the WCND module, monitors the running state of the WCN module in a mode of periodically inquiring equipment nodes in a Driver so as to obtain whether the WCN module generates blast; the WCND module has system authority, finds out the WCN Service process after inquiring that the WCN module generates Crash, and closes the WCN Service process, namely the WCND closes the corresponding abnormal Service process through transverse communication; and the WCN Service is finished, the system Service knows through the callback interface, and the WCN Service is restarted to finish the abnormal recovery of the WCN module.
The existing WCN module exception recovery mechanism has the following problems:
firstly, the existing system architecture is complex, a WCND module needs to access a device node in a Driver across modules for periodic query, and the possibility of low access efficiency and poor security exists, and the possibility of discovering that the WCN module Crash is not timely and accurate exists.
Secondly, the WCND directly finishes the WCN Service process, which belongs to abnormal finishing and abnormal exit, so that the stability and reliability of the system are reduced, and the problem that the system Service cannot timely and accurately judge that the WCN module needs to be restarted at a certain probability exists.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects that the WCN module abnormity recovery mechanism in the prior art has the defects of untimely abnormity discovery and easy reduction of system stability and reliability after recovery, and provide the intelligent equipment and the WCN module abnormity recovery system which can discover the WCN abnormity in time and can keep the system stability and reliability after abnormity recovery, thereby realizing the effect that a user cannot sense the abnormity.
The invention solves the technical problems through the following technical scheme:
the invention provides a system for recovering an abnormal WCN module of intelligent equipment in a first aspect, which comprises an AP side module and a WCN module, wherein the AP side module comprises a system service, a WCN service and a driving module, the WCN module comprises a WCN firmware, and the WCN service comprises at least one sub-service;
the driving module is used for inquiring equipment nodes in the driving module according to a preset mechanism to identify the sub-service of the abnormal event;
the driving module is also used for notifying abnormal sub-business services through an active reporting mechanism after identifying the sub-business generating the abnormal event; the abnormal sub-business service is the sub-business service corresponding to the sub-business with the abnormal event;
and the abnormal sub-business service is used for performing abnormal recovery by adopting a restarting mechanism in the abnormal sub-business service based on the abnormal event.
In the scheme, the participation of the WCND module in the conventional implementation mode is removed, the Crash event of the WCN module is actively reported by Kernel through an active reporting mechanism, and the WCN Service is respectively restarted at each sub Service System partition module by each Service module, so that the reduction of the System stability and reliability caused by the abnormal ending of the WCND module in the WCN Service process is avoided.
In the scheme, detection of the Crash event of the WCN module is downloaded to the driving module, the Crash event of the WCN module is actively reported by Kernel through an active reporting mechanism, and query and report are carried out inside the driving module, so that access efficiency and safety are improved, the Crash of the WCN module can be timely found, the problems of low access efficiency and poor safety in a mode of periodically querying by accessing equipment nodes in a Driver across modules through the WCND module are solved, and the problems of untimely and inaccurate discovery of the Crash of the WCN module are solved.
Preferably, the active reporting mechanism includes a UEVENT mechanism or a Netlink mechanism.
Preferably, the predetermined mechanism is a predetermined time interval period.
In the scheme, the WCN module automatically monitors the running state of the WCN module, transmits the running state to the equipment nodes corresponding to the sub-service modules in the driving module when the WCN module finds out the abnormal situation, periodically inquires the equipment nodes corresponding to each sub-service module according to a preset time interval in the driving module, and identifies the sub-service with the abnormal event according to the state of the equipment nodes.
Preferably, the sub-service services include Wi-Fi service, bluetooth service, FM service, and GPS service.
In the scheme, when the WCN module at the bottom layer is a wireless communication network chip integrating four-in-one functions, the service corresponding to the AP side supports four sub-services, namely Wi-Fi service, Bluetooth service, FM service and GPS service.
Preferably, the smart device comprises a smart phone or a smart sound box.
In the scheme, the intelligent equipment can be a smart phone and other embedded equipment, such as an intelligent sound box and the like. For a smart speaker, its WCN module may only support Wi-Fi and bluetooth services.
The second aspect of the present invention provides a method for recovering an abnormal condition of a WCN module of a smart device, where the method is implemented based on the system for recovering an abnormal condition of a WCN module of a smart device in the first aspect;
the method comprises the following steps:
the driving module identifies the sub-service of the abnormal event by inquiring the equipment node in the driving module according to a preset mechanism;
the driving module informs the abnormal sub-service through an active reporting mechanism after identifying the sub-service of the abnormal event;
and the abnormal sub-business service adopts a restarting mechanism in the abnormal sub-business service to perform abnormal recovery based on the abnormal event.
Preferably, the active reporting mechanism includes a UEVENT mechanism or a Netlink mechanism.
Preferably, the step of the driver module identifying the sub-service of the abnormal event by querying the device node inside the driver module according to a preset mechanism is as follows:
the driving module identifies the sub-service of the abnormal event by regularly inquiring the equipment node in the driving module according to the preset time interval.
Preferably, the sub-service services include Wi-Fi service, bluetooth service, FM service, and GPS service.
The third aspect of the present invention provides a smart device, including the system for recovering the WCN module exception of the smart device in the first aspect.
The positive progress effects of the invention are as follows:
compared with the prior art, the intelligent equipment and the WCN module abnormal recovery System and method thereof have the advantages that the WCN Service is restarted by the Service module in each sub-Service System partition module, and the reduction of System stability and reliability caused by the fact that the WCN Service process is directly abnormally ended through the WCND module is avoided. The query and report of the Crash event of the WCN module are carried out in the drive module, so that the access efficiency and the safety are improved, and the Crash of the WCN module can be found in time.
Drawings
Fig. 1 is an architecture diagram of a system for abnormal recovery of a WCN module of a conventional smart device.
Fig. 2 is an architecture diagram of a system for abnormal recovery of the WCN module of the smart device according to embodiment 1 of the present invention.
Fig. 3 is a flowchart of a method for recovering from an anomaly of a WCN module of an intelligent device according to embodiment 2 of the present invention.
Detailed Description
The invention is further illustrated by the following examples, which are not intended to limit the scope of the invention.
Example 1
As shown in fig. 2, this embodiment provides a system for recovering from an anomaly of a WCN module of an intelligent device, including an AP-side module and a WCN module, where the AP-side module includes a system service, a WCN service, and a driver module, the WCN module includes a WCN firmware, and the WCN service includes at least one sub-service. In this embodiment, the smart device is a smart phone of an android system, and may also be other embedded devices such as a smart sound box in other optional implementation manners. Fig. 2 is an improvement based on the generic android system architecture. The system service is represented by APP in fig. 2, and may further include other system services. The Driver in fig. 2, the WCN Firmware in fig. 2, Firmware. The WCN Service is located in a System layer of an android System architecture, and the Driver is located in a Kernel layer.
In this embodiment, the WCN service includes four sub-service services, which are a Wi-Fi service, a bluetooth service, an FM service, and a GPS service, respectively.
In this embodiment, the WCN module monitors its own operating state, and when an anomaly is found, the WCN module transmits the anomaly to the device node corresponding to the sub-service module in the Driver, and the Driver periodically queries the device node corresponding to each sub-service module according to a preset time interval, and identifies the sub-service having the anomaly according to the state of the device node. The Driver is also used for informing abnormal sub-business service through an active reporting mechanism after identifying the sub-business generating the abnormal event; the abnormal sub-business service is a sub-business service corresponding to the sub-business with the abnormal event; and the abnormal sub-business service is used for performing abnormal recovery by adopting a restarting mechanism in the abnormal sub-business service based on the abnormal event.
The active reporting mechanism includes a UEVENT mechanism or a Netlink mechanism, and the UEVENT mechanism is adopted in this embodiment, which is simple in implementation and more suitable for the system architecture of this embodiment.
For example, in this embodiment, if the sub-service in which the abnormal event occurs is a Wi-Fi service, the Driver may actively report to the Wi-Fi service in the System layer through the UEVENT mechanism after recognizing that the Wi-Fi service is abnormal, and the Wi-Fi service recovers the abnormality by using a restart mechanism inside the Wi-Fi service based on the specific situation of the abnormal event. A restarting mechanism in the Wi-Fi service can properly save various data related to the Wi-Fi service, so that the reliability and the safety of the system are not reduced when the Wi-Fi service is abnormally shut down.
According to the method, participation of the WCND module in the existing implementation mode is eliminated, the Crash event of the WCN module is actively reported by the Kernel through an active reporting mechanism, and the WCN Service is respectively restarted at each sub-Service System partition module by each Service module, so that reduction of System stability and reliability caused by abnormal ending of the WCND module to the WCN Service process is avoided.
In this embodiment, detection of the Crash event of the WCN module is downloaded to the Driver module, and the Crash event of the WCN module is actively reported by Kernel through an active reporting mechanism, and since query and report are both performed inside the Driver module, access efficiency and security are improved, and the Crash of the WCN module can be timely found, thereby avoiding problems of low access efficiency and poor security in a mode of periodically querying by accessing a device node in the Driver across modules by the WCND module, and problems of untimely and inaccurate discovery of the Crash of the WCN module.
Example 2
As shown in fig. 3, this embodiment provides a method for recovering from an anomaly of a WCN module of a smart device, where the method is implemented based on the system for recovering from an anomaly of a WCN module of a smart device in embodiment 1.
The method comprises the following steps:
S 1 and the driving module identifies the sub-service of the abnormal event by regularly inquiring the equipment node in the driving module according to the preset time interval.
S 2 The driving module notifies abnormal sub-business services through an active reporting mechanism after identifying the sub-business with the abnormal event; the active reporting mechanism may be a UEVENT mechanism or a Netlink mechanism.
S 3 And the abnormal sub-business service adopts a restarting mechanism in the abnormal sub-business service to perform abnormal recovery based on the abnormal event.
In the embodiment, the participation of the WCND module in the existing implementation mode is removed, the Crash event of the WCN module is actively reported by Kernel through an active reporting mechanism, and the WCN Service is respectively restarted at each sub-Service System partition module by each Service module, so that the reduction of the System stability and reliability caused by the abnormal termination of the WCND module to the WCN Service process is avoided.
In this embodiment, detection of the Crash event of the WCN module is downloaded to the Driver module, and the Crash event of the WCN module is actively reported by Kernel through an active reporting mechanism, and since query and report are both performed inside the Driver module, access efficiency and security are improved, and the Crash of the WCN module can be timely found, thereby avoiding the problems of low access efficiency and poor security in a mode of accessing a device node in the Driver for periodic query across modules through the WCND module, and the problems of untimely and inaccurate Crash of the WCN module.
Example 3
The embodiment provides a smart device, which comprises the system for abnormal recovery of the WCN module of the smart device in the embodiment 1.
In the embodiment, the participation of the WCND module in the existing implementation mode is removed, the Crash event of the WCN module is actively reported by Kernel through an active reporting mechanism, and the WCN Service is respectively restarted at each sub-Service System partition module by each Service module, so that the reduction of the System stability and reliability caused by the abnormal termination of the WCND module to the WCN Service process is avoided.
In this embodiment, detection of the Crash event of the WCN module is downloaded to the Driver module, and the Crash event of the WCN module is actively reported by Kernel through an active reporting mechanism, and since query and report are both performed inside the Driver module, access efficiency and security are improved, and the Crash of the WCN module can be timely found, thereby avoiding the problems of low access efficiency and poor security in a mode of accessing a device node in the Driver for periodic query across modules through the WCND module, and the problems of untimely and inaccurate Crash of the WCN module.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.

Claims (10)

1. The system for recovering the abnormity of the WCN module of the intelligent equipment is characterized by comprising an Application Processor (AP) side module and a WCN module, wherein the AP side module comprises a system service, a WCN service and a driving module, the WCN module comprises WCN firmware, the WCN service comprises at least one sub-service, the WCN service is positioned at a system layer, and the driving module is positioned at a kernel layer, wherein the WCN module automatically monitors the running state of the WCN module and transmits the running state to an equipment node corresponding to the sub-service module in the driving module when the abnormity is found;
the driving module is used for inquiring equipment nodes in the driving module according to a preset mechanism to identify the sub-service of the abnormal event;
the driving module is also used for notifying abnormal sub-business services through an active reporting mechanism after identifying the sub-business in which the abnormal event occurs; the abnormal sub-business service is the sub-business service corresponding to the sub-business with the abnormal event;
and the abnormal sub-business service is used for performing abnormal recovery by adopting a restarting mechanism in the abnormal sub-business service based on the abnormal event.
2. The system for WCN module exception recovery of a smart device of claim 1, wherein the active reporting mechanism comprises UEVENT mechanism or Netlink mechanism.
3. The system for anomalous recovery in a WCN module of a smart device as in claim 1, wherein said predetermined mechanism is a predetermined time interval period.
4. The system for WCN module anomaly recovery for smart device as recited in claim 1 wherein said sub-business services comprise Wi-Fi services, bluetooth services, FM services and GPS services.
5. The system for WCN module anomaly recovery for a smart device as recited in claim 1, wherein said smart device comprises a smart phone or a smart speaker.
6. A method for recovering an abnormal condition of a WCN module of a smart device is characterized in that the method is implemented based on the system for recovering the abnormal condition of the WCN module of the smart device according to any one of claims 1 to 5;
the method comprises the following steps:
the driving module identifies the sub-service of the abnormal event by inquiring the equipment node in the driving module according to a preset mechanism;
the driving module informs the abnormal sub-service through an active reporting mechanism after identifying the sub-service of the abnormal event;
and the abnormal sub-business service adopts a restarting mechanism in the abnormal sub-business service to perform abnormal recovery based on the abnormal event.
7. The method for exception recovery of a WCN module of a smart device of claim 6, wherein the active reporting mechanism comprises a UEVENT mechanism or a Netlink mechanism.
8. The method for recovering from abnormality of WCN module of smart device as claimed in claim 6, wherein said step of said driver module identifying sub-service of abnormal event by querying device node inside said driver module according to preset mechanism is:
the driving module identifies the sub-service of the abnormal event by regularly inquiring the equipment node in the driving module according to the preset time interval.
9. The method of abnormal recovery of a WCN module of a smart device of claim 6, wherein the sub-traffic services include Wi-Fi services, Bluetooth services, FM services, and GPS services.
10. A smart device characterized by comprising a system for abnormal recovery of WCN module of the smart device according to any of claims 1 to 5.
CN202010620806.6A 2020-06-30 2020-06-30 Intelligent device and system and method for recovering abnormity of WCN module thereof Active CN111800810B (en)

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CN202010620806.6A CN111800810B (en) 2020-06-30 2020-06-30 Intelligent device and system and method for recovering abnormity of WCN module thereof
PCT/CN2021/088908 WO2022001313A1 (en) 2020-06-30 2021-04-22 Smart device and wcn module exception recovery system thereof and method therefor
US18/148,090 US20230133272A1 (en) 2020-06-30 2022-12-29 Intelligent device, and system and method for communication between ap component and wcn component thereof

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CN112241338A (en) * 2020-10-21 2021-01-19 展讯半导体(成都)有限公司 Restarting method and device
CN115002013B (en) * 2022-08-08 2022-12-06 浙江华创视讯科技有限公司 Method and device for determining running state, storage medium and electronic device

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