WO2011137793A1

WO2011137793A1 - Method, apparatus and network system for achieving remote update of zigbee devices

Info

Publication number: WO2011137793A1
Application number: PCT/CN2011/074361
Authority: WO
Inventors: 张永靖; 卞永刚; 丁传锁; 黄成�; 牟伦建
Original assignee: 华为技术有限公司
Priority date: 2010-10-21
Filing date: 2011-05-19
Publication date: 2011-11-10
Also published as: CN102136934A; CN102136934B

Abstract

A method for achieving remote update of Zigbee devices includes: receiving, by utilizing a remote device management protocol, a firmware downloading instruction sent from a device management server; obtaining firmware according to the firmware downloading instruction; receiving, by utilizing the remote device management protocol, the range indication information of the devices to which the firmware is applicable and firmware distribution and update indication information sent from the remote device management server; according to the firmware distribution and update indication information and the range indication information of the devices to which the firmware is applicable, by utilizing the firmware update management protocol of Zigbee devices, distributing the obtained firmware to the Zigbee devices to which the firmware is applicable, and controlling the Zigbee devices to which the firmware is applicable to perform firmware update operations. Application of the present invention can perform remote firmware update with little modification for Machine to Machine (M2M) terminals using Zigbee technology.

Description

Method, device and network system for implementing Zigbee device upgrade This application claims to be submitted to the China Patent Office on October 21, 2010, the application number is 201010526831.4, and the invention name is "Method, device and network system for realizing Zigbee device remote upgrade" Priority of the patent application, the entire contents of which is incorporated herein by reference.

Technical field

The present invention relates to the field of communications technologies, and in particular, to a method, device, and network system for implementing a remote upgrade of a Zi gbee device.

Background technique

Machine-to-Machine Communications (M2M) is a networked application and service centered on machine intelligence interaction. By embedding wireless or wired communication modules and application processing logic inside the machine, no manual intervention is required. Data communication to meet the information needs of users in monitoring, command and dispatch, data acquisition and measurement. Figure 1 shows a typical M2M system architecture in which various M2M terminals (such as sensors, microcontrollers, etc.) are connected to the M2M gateway through sensor network technology, and then use the remote access technology (such as 2G) through the M2M gateway. /3G wireless cellular network technology, Asymmetric Digital Subscriber Line (ADSL) technology is connected to the M2M service platform, and various applications (such as power meter reading, intelligent transportation, etc.) are obtained through the M2M service platform. Data collected by the M2M terminal or remotely controlled and managed by the M2M terminal.

Remote device management is an important function of the M2M system. The remote device management means that the M2M application or the M2M service provider needs to remotely manage and maintain the M2M terminal in the terminal sensing network through the M2M service platform and the M2M gateway. It includes functions such as remote configuration management, performance management, fault management, and software/firmware upgrade for M2M terminals. These device management functions need to be completed through the M2M service platform and the device management capability components in the M2M gateway.

In the prior art, the remote device management technology based on the wide area network mainly has an Open Mobile Alliance (Open

The Device Management (DM) specification (hereinafter referred to as DM) defined by Mobile Alliance, OMA), and the TR069 specification (hereinafter referred to as TR069) defined by the Broadband Forum. Among them, DM is mainly used in mobile network environments (such as 2G/3G cellular networks), while TR069 is mainly used in fixed broadband network environments (such as ADSL), both of which can provide single-pair Remote management and maintenance functions of devices. In the sensor network, one of the commonly used technologies of M2M terminals is the Zigbee technology, which not only provides basic communication capabilities between devices in the local sensor network, but also provides certain device management capabilities. , such as firmware upgrade (Zigbee OTA Upgrade). Zigbee technology supports firmware upgrades for multiple Zigbee network devices simultaneously, as well as multiple firmware upgrades.

Now, the device management capability component in the M2M service platform can remotely manage the M2M gateway by using the above-mentioned WAN-based remote device management technology (DM or TR069); the device management capability component in the M2M gateway can adopt the above-mentioned sensor network device management technology. (Zigbee) Local management of M2M terminals at the end of the sensor network. However, due to the differences between the remote device management technology of the WAN and the device management technology of the sensor network, the M2M application or the M2M service provider cannot directly manage the M2M terminal through the M2M service platform and the M2M gateway by using the WAN-based device management technology. .

The prior art provides a method for remotely managing an M2M terminal by using a Simple Network Management Protocol (SNMP) protocol, as shown in FIG. 2, wherein the management application module on the SNMP management station passes the device through the SNMP protocol. The upgrade request is sent to the Simple Network Management Protocol Agent SNMP Agent on the Access Point (AP). The device upgrade request is forwarded to the SNMP Agent on the M2M terminal, and the SNMP Agent on the M2M terminal and the SNMP established locally. The Management Information Base (MIB) exchanges information to implement firmware upgrades for M2M terminals.

The prior art requires an SNMP agent and an SNMP management information base (MIB) on the M2M terminal, that is, the M2M terminal needs to support the SNMP protocol, but a large number of M2M terminals that are currently applied to the sensing network do not support the SNMP protocol, and therefore, firmware is required. When upgrading, the M2M terminals that have been applied have been greatly modified, which increases operating costs.

Summary of the invention

The embodiments of the present invention provide a method, a device, and a network system for implementing remote upgrade of a Zigbee device, which can perform remote firmware upgrade when the M2M terminal adopting Zigbee technology has little change.

In view of this, the embodiments of the present invention provide:

A method for implementing remote upgrade of a Zigbee device, including: Receiving, by using a remote device management protocol, a firmware download instruction sent by the device management server, and acquiring firmware according to the firmware download instruction;

Receiving, by using a remote device management protocol, device range indication information and firmware delivery and upgrade indication information applicable to the firmware sent by the remote device management server;

And using the Zigbee device firmware upgrade management protocol to deliver the acquired firmware to the Zigbee device to which the firmware is applicable, and controlling the firmware according to the firmware delivery and upgrade indication information and the device range indication information applicable to the firmware. The Zigbee device to which the firmware is applied performs a firmware upgrade operation.

A gateway, including:

a remote management information interaction unit, configured to receive, by using a remote device management protocol, a firmware download instruction sent by the device management server, device range indication information applicable to the firmware, and firmware delivery and upgrade indication information;

a firmware obtaining unit, configured to obtain firmware according to the firmware downloading instruction;

An upgrade unit, configured to deliver the obtained firmware to a Zigbee device to which the firmware is applied, according to the firmware delivery and upgrade indication information and the device range indication information applicable to the firmware, by using a Zigbee device firmware upgrade management protocol. And controlling the Zigbee device to which the firmware is applied to perform a firmware upgrade operation.

A network system, including the foregoing gateway and device management server, wherein

And a device management server, configured to send, by using a remote device management protocol, a firmware download instruction, device range indication information, and firmware delivery and upgrade indication information, to the gateway.

In the embodiment of the present invention, the gateway determines, according to the device range indication information that the firmware is sent by the device management server, the Zigbee device to which the firmware is applied, and sends the firmware delivery and upgrade indication information sent by the device management server to the firmware. The applicable Zigbee device delivers the firmware and controls the firmware upgrade operation. This allows the device management server to control the Zigbee device for firmware upgrade. The Zigbee device does not need to support the SNMP protocol, so the changes to the Zigbee device are small.

DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention. In the field of ordinary people, without creative efforts, Other drawings are obtained in accordance with these figures.

1 is a structural diagram of an M2M network provided by the prior art; FIG. 3 is a flowchart of a method for implementing remote upgrade of a Zigbee device according to an embodiment of the present invention; FIG. 4 is a firmware upgrade for an M2M device according to an embodiment of the present invention. FIG. 5 is a flowchart of a method for implementing remote upgrade of a Zi gbee device based on the DM protocol according to an embodiment of the present invention;

6 is a flowchart of a remote upgrade method in an ordinary manner according to an embodiment of the present invention;

FIG. 9 is a flowchart of a method for triggering a Zigbee device to distribute firmware and triggering an upgrade thereof according to an embodiment of the present invention;

FIG. 10 is a flowchart of a firmware recovery operation method according to an embodiment of the present invention;

11 is a schematic structural diagram of a download file supported by the TR069 protocol;

FIG. 12 is a flowchart of a method for implementing remote upgrade of a Zigbee device based on the TR069 protocol according to an embodiment of the present invention;

FIG. 13 is a schematic structural diagram of a gateway according to an embodiment of the present invention; FIG.

FIG. 13B is a structural diagram of an upgrade unit according to an embodiment of the present invention; FIG.

FIG. 13C is another structural diagram of an upgrade unit according to an embodiment of the present invention; FIG.

FIG. 13D is a structural diagram of an upgrade unit according to an embodiment of the present invention; FIG.

14A is a result diagram of a firmware delivery unit according to an embodiment of the present invention;

FIG. 14B is a result of another firmware delivery unit according to an embodiment of the present invention; FIG.

FIG. 15 is a structural diagram of a network system according to an embodiment of the present invention.

detailed description

Referring to FIG. 3, an embodiment of the present invention provides a method for upgrading a Zigbee device, where the method includes:

301. Receive, by using a remote device management protocol, a firmware download instruction sent by the device management server, and obtain firmware according to the firmware download instruction.

Wherein, the firmware download instruction can carry the firmware, the step can directly obtain the firmware from the firmware download instruction, or the firmware download instruction carries the firmware download address, then the step is based on the firmware Download the address and download the firmware.

302. Receive, by using a remote device management protocol, device range indication information and firmware delivery and upgrade indication information applicable to the firmware sent by the device management server.

It should be noted that steps 301 and 302 have no sequential sequence.

The executor of the embodiment of the present invention may be a gateway. The device management server in the embodiment of the present invention may be an M2M service platform, and the Zigbee device may be an M2M device.

The remote device management protocol in the embodiments of the present invention may be the DM protocol or the TR069 protocol. Specifically, the device management server may use the DM protocol to configure the device range indication information applicable to the firmware (that is, the device range description information in the subsequent embodiment) on the corresponding node of the management tree in the gateway, or extend the firmware file by using the TR069 protocol. The Zigbee device range command is applied to the firmware file, and the Zigbee device range command includes the Zigbee device range indication information that is applicable to the firmware, and then the extended firmware file is sent to the gateway, as described in the following embodiments. A detailed description.

The device range indication information that is applicable to the firmware includes: an identifier of a Zigbee device to which the firmware is applied, an identifier of a Zigbee device manufacturer to which the firmware is applicable, a Zigbee device category identifier and an energy applicable to the firmware. At least one of the firmware version range indication information currently used by the Zigbee device upgraded to the acquired firmware.

Specifically, the device management server may use the DM protocol to send an indication that triggers the gateway to perform firmware delivery and upgrade, so as to trigger an executable command that is sent on the node of the management tree in the gateway to indicate that the firmware is delivered and upgraded; or, by TR069 The protocol extends the firmware file, and the firmware upgrade mode command is added to the firmware file, wherein the firmware upgrade mode command is a command to indicate that the Zigbee device is immediately upgraded after the firmware is distributed and distributed, or the firmware distribution and all Zigbee devices are successfully downloaded after the firmware is successfully synchronized. The command to perform the firmware upgrade, or the command to update the Zigbee device after the firmware distribution and distribution is scheduled to be upgraded, and then send the extended firmware file to the gateway, as described in detail in the subsequent embodiments.

The firmware delivery and upgrade indication information includes: firmware delivery indication information and upgrade indication information; before receiving the upgrade indication information sent by the remote device management server by using the remote device management protocol, the method further includes: Sending a firmware download result of the Zigbee device to which the firmware is applied; receiving the swell sent by the remote device management server by using the remote device management protocol The level indication information is specifically: after sending the firmware download result of the Zigbee device to which the firmware is applied to the device management server, receiving the upgrade indication information sent by the device management server, where the upgrade indication information is that the device management server is The firmware download result of the Zigbee device to which the firmware is applied determines that it is sent when the upgrade indication information needs to be sent. The upgrade indication information may indicate a specific upgrade manner, as described in the following embodiments.

303. The Zigbee device firmware upgrade management protocol is used to deliver the acquired firmware to the Zigbee device to which the firmware is applied according to the firmware delivery and upgrade indication information and the device range indication information applicable to the firmware, and control The Zigbee device to which the firmware is applied performs a firmware upgrade operation.

Specific delivery firmware includes but is not limited to the following two methods:

The first mode is: determining, according to the device range indication information that is applicable to the firmware, that the Zigbee device to which the firmware is applicable, sending a notification message to the Zigbee device to which the firmware is applied in a unicast manner to notify the firmware The applicable Zigbee device downloads the firmware, and the notification message may be an Image Notify message.

The second method is to send a notification message to all Zigbee devices managed by the gateway in a broadcast manner, where the notification message carries information about a Zigbee device to which the firmware is applied, where the Zigbee device to which the firmware is applied The information includes: at least one of a manufacturer identifier and a category identifier of a Zigbee device to which the firmware is applicable, and the notification message may be an Image Notify message.

Specifically, the firmware delivery and upgrade indication information indicates that each Zigbee device to which the firmware is applied successfully performs firmware upgrade operation immediately after the firmware is successfully downloaded, and the gateway uses the Zigbee device firmware upgrade management protocol to indicate that the Zigbee device to which the firmware is applied is The firmware is downloaded on the gateway, and the prompt information for immediate upgrade is sent to each Zigbee device that successfully downloads; or the firmware delivery and upgrade indication information indicates that all Zigbee devices that are applicable to the firmware are successfully executed after downloading the firmware. a firmware upgrade operation, the gateway uses a Zigbee device firmware upgrade management protocol to instruct the Zigbee device to which the firmware is applicable to download the firmware from the gateway, after all Zigbee devices to which the firmware is applied successfully download the firmware, All Zigbee devices to which the firmware is applied send an indication of an immediate upgrade, or the gateway uses a Zigbee device firmware upgrade management protocol to instruct the Zigbee device to which the firmware is applicable to download the firmware from the gateway, where the firmware is applicable. After all Zigbee devices have been successfully downloaded When some firmware applicable Zigbee device is currently in a sleep state, the apparatus selects all Zigbee firmware are applied at a point in time of the active state, respectively the All Zigbee devices to which the firmware is applied send indications indicating firmware upgrades at selected points in time; or, firmware delivery and upgrade instructions indicate that each Zigbee device to which the firmware is applied successfully downloads firmware after a predetermined upgrade time Performing a firmware upgrade operation, the gateway instructing the Zigbee device to which the firmware is applicable to download the firmware from the gateway by using a Zigbee device firmware upgrade management protocol, and sending an indication to each of the Zigbee devices to which the firmware applies, respectively, to the predetermined Upgrade time for instructions for firmware upgrade.

Further, in order for the device management server to know the upgrade result, the method further includes: querying, by using the Zigbee device firmware upgrade management protocol, the Zigbee device performing the firmware upgrade operation to query the upgrade result.

Further, in order to provide an upgrade result to the device management server, the method further includes: receiving, by using a remote device management protocol, an upgrade result request message sent by the device management server, and sending a response message to the device management server according to the query result.

Further, in order to prevent the normal operation of the Zigbee network after performing the firmware upgrade operation when the Zigbee device fails to be upgraded, the method further includes: when the query result indicates that at least one Zigbee device upgrade fails, the Zigbee device firmware upgrade management protocol is utilized. Sending a firmware recovery command to the Zigbee device that fails to be upgraded, the firmware recovery command is used to indicate that the upgraded Zigbee device resumes using the firmware before the upgrade; or, when the query result indicates that at least one Zigbee device upgrade fails, using the Zigbee device firmware upgrade The management protocol sends a firmware recovery command to all Zigbee devices that perform firmware upgrade operations, which are used to indicate that the firmware prior to the upgrade was restored.

Optionally, before sending the firmware recovery command to the Zigbee device, sending, by using a remote device management protocol, an upgrade result of the Zigbee device to which the firmware is applied to the device management server, and receiving a firmware recovery indication sent by the device management server, where The firmware recovery indication indicates that the Zigbee device that failed the upgrade needs to perform the recovery operation, or that all Zigbee devices that perform the firmware upgrade operation need to perform the recovery operation.

In the embodiment of the present invention, the gateway determines, according to the device range indication information that the firmware is sent by the device management server, the Zigbee device to which the firmware is applied, and sends the firmware delivery and upgrade indication information sent by the device management server to the firmware. The applicable Zigbee device issues firmware and controls its firmware upgrade operation, so that the device management server can control the Zigbee device to perform firmware. The upgrade does not require the Zigbee device to support the SNMP protocol, so the changes to the Zigbee device are small. It should be noted that, for convenience of description, the firmware sent by the gateway to the Zigbee device in the subsequent embodiments of the present invention is referred to as new firmware.

The invention is improved by the gateway, so that when the gateway is facing the device management server (such as DM/TR069 Server) in the M2M service platform, it acts as the DM/TR069 management client itself, when facing the Zigbee device managed in the Zigbee network, Serves as an upgrade server for Zigbee firmware (Zigbee OTA Upgrade Server). In order to achieve the above functions, the tree structure management object (MO) structure model for Zigbee device firmware upgrade in the gateway is introduced as follows, as shown in FIG. 4, where "./" is the root node of the management tree in the gateway. Each box represents an MO node or its child nodes in the management tree, and the characters in the box are the node names. In some node boxes, the node name is marked with a different symbol. The symbol "?" means that the node may have zero or one instance; the symbol "*" means that the node may have zero or more instances; there is no symbol. Indicates that the node may have one and only one instance; the symbol "+" indicates that the node may have one or more instances. The node name is

"<x>" indicates that the node name can be arbitrarily specified, but it is necessary to ensure that multiple instances are not duplicated. It should be noted that Figure 4 does not show all the nodes in the management tree, but only some node information related to the present invention.

The meaning of each MO node is as follows:

1) The child nodes under the ./Devlnfo node record the basic information of the device of the gateway itself, where Devld, Man, Mod record the device identifier, manufacturer identifier and model identifier of the gateway respectively; 2) under the .DevDetail node The child node records the device details of the gateway itself, where

DevTyp and FwV respectively record the type of the gateway (such as the gateway in the Zigbee network) and the firmware version number;

3) The child node under the ./GW node records some specific information of the gateway device, one of which is a ./DevList node, which is used to record all Zigbee device information connected to the gateway, and each Zigbee device information Represented by a <> node, <x> includes the Devlnfo and DevDetail nodes, which are used to record basic and detailed information for each Zigbee device. The remote device management server can view the .GW/DevList node to learn the basic information and detailed information of all Zigbee devices under the gateway, so as to determine whether and how to upgrade the Zigbee device under the gateway when needed. 4) The child nodes under the ./ZigbeeFw node are used to record all the firmware-related MO information required for firmware upgrade through the gateway. The MO information of each firmware is represented by an <x> node, and each <x> node includes The following child nodes:

■ PkgName: i has recorded the name of the firmware;

■ PkgVersion: i has recorded the version number of the firmware;

■ ApplyTo: records the range of Zigbee devices for the applicable firmware upgrade, and describes the filter conditions in the range with a <> child node. Each filter condition can also contain multiple sub-filter conditions. In this case, the <> sub-node can include multiple Each child node records a filter condition. These filter conditions are related to each other. The specific filter sub-conditions include:

• Devld: records the category ID of the Zigbee device for which the firmware is upgraded;

• Man: Record the manufacturer's identification of the Zigbee device for the firmware upgrade;

• Mod: Record the model number of the Zigbee device for which the firmware is upgraded;

• MaxVersion: records the maximum version number of the current old firmware of the Zigbee device that can be upgraded;

• MinVersion: records the minimum version number of the current old firmware of the Zigbee device that can be upgraded;

• Ext: indicates that other filtering conditions can also be extended, such as limiting the Zigbee device that can be upgraded to meet the values of other parameters or attributes, and so on;

■ The child nodes under the Download node are used to record the firmware upgrade execution mode after downloading the firmware indirectly. The subnodes under the Download node are:

• PkgURL: Record the indirect download address of the firmware package;

• Operations: Record the firmware upgrade method that needs to be performed after downloading the firmware. The subnodes under this node include:

- Download: The node saves an executable command, which downloads the firmware package to the gateway according to PkgURL, and does not perform firmware distribution and upgrade;

- DownloadDistribute: This node saves the executable command, which is distributed to the ApplyTo node and is filtered according to the PkgURL after downloading the firmware package to the gateway.

On the Zigbee device, the firmware upgrade is not performed temporarily;

- DownloadUpgrade: This node saves the executable command, which is distributed to the matching filter record recorded in the ApplyTo node after downloading the firmware package to the gateway according to PkgURL. On the Zigbee device, and immediately perform the normal upgrade process;

- DownloadUpgradeSync: This node saves the executable command, which is distributed to the Zigbee device recorded in the ApplyTo node according to the filtering condition after the firmware package is downloaded to the gateway according to the PkgURL, and the synchronization upgrade process is performed;

- DownloadUpgradeSched: This node saves the executable command. After downloading the firmware package to the gateway according to PkgURL, the command is distributed to the Zigbee device that matches the filtering conditions recorded in the ApplyTo node, and performs the timing upgrade process.

Ext: indicates that it is also possible to extend the execution of other firmware upgrades;

■ The child nodes under the De ivered node are used to record the firmware upgrade execution mode after downloading the firmware directly, including the following subnodes:

• PkgDa ta: used to store the firmware to be upgraded;

• Opera t ions : Record the firmware upgrade method that needs to be performed. The node includes the following child nodes:

- Di s t r ibute: This node saves the executable command, which distributes the downloaded firmware to the Zigbee device that matches the filter condition recorded in the ApplyTo node, and does not perform the firmware upgrade temporarily;

- Upgrade: This node saves the executable command, which distributes the downloaded firmware package to the Zigbee device that matches the filter condition recorded in the ApplyTo node, and immediately performs the normal upgrade process;

- UpgradeSync: This node saves the executable command, which distributes the downloaded firmware package to the Zigbee device that matches the filter condition recorded in the ApplyTo node, and performs the synchronization upgrade process;

- UpgradeSched: This node saves an executable command for distributing the downloaded firmware package to the Zigbee device that matches the filter condition recorded in the ApplyTo node, and performs a scheduled upgrade process;

- Ext : Indicates that other firmware upgrade execution modes can also be extended;

■ The child nodes under the Sta te node are used to record the results of the firmware upgrade, including the following child nodes:

• Va lue: Used to record firmware upgrade status, such as all upgrade success, partial upgrade success, full upgrade failure, it can also record firmware download and distribution status, etc. • SuccessfulList: It is used to record all Zigbee device information that is distributed and upgraded successfully. Each sub-node < _x > corresponds to a Zigbee device that is distributed and upgraded successfully. Sub-node <x> includes: Devld sub-node, which is used to record the Zigbee device. The unique identifier of the Zigbee device;

• FailedList: Used to record Zigbee device information for all distribution or upgrade failures. Each sub-node <x> corresponds to a Zigbee device that fails to be distributed or upgraded. Sub-node <x> includes: Devld sub-node for recording The unique identifier of the Zigbee device;

■ The node under the Recover node is used to record how the firmware version is restored when the device firmware upgrade fails. The Recover node itself can be defined as an executable node to receive firmware recovery operation instructions of the device management server. The Recover node includes the following sub-nodes: • Policy: A specific policy for recording firmware version recovery, including at least the following possible values One:

- All: If the firmware upgrade of one device fails, all the Zigbee devices involved in this firmware upgrade (that is, the Zigbee devices recorded in the ApplyTo node) are restored to the firmware version before the upgrade;

- Failed: If the firmware upgrade of the device fails, only the Zigbee device that failed the upgrade is restored to the firmware version before the upgrade;

- one: Does not perform any firmware version reply operation, but reports the subsequent operation instructions of the device management server.

It should be noted that the above management tree model for Zigbee device firmware upgrade is only a typical example, in which a specific node may change its relative position or name in the management tree in actual deployment (for example, DevList can be directly connected to the root node. / Underneath without having to go through the /GW node, and the node used to store the various firmware information can also be directly connected to the root node. / or other nodes). In addition, multiple executable nodes representing multiple upgrade methods defined under the <x>/Download/Operat ions and <x>/Del ivered/Operat ions nodes can also be associated with multiple attributes with a single executable node. The node description distinguishes between different execution modes (similar to the design principle of the <x>/Recover node).

Referring to FIG. 5, an embodiment of the present invention provides a method for implementing a remote upgrade of a Zigbee device. In this method, a DM protocol is adopted between a device management server and a gateway, and the method specifically includes: 501. The Zigbee device determines the gateway that is managed in the local network.

Specifically, there are two ways:

The first mode: the Zigbee device is pre-configured with the IEEE address of the gateway (each IEEE address uniquely identifies a gateway), and the Zigbee device determines that the gateway identified by the IEEE address is a gateway for managing itself, and the Zigbee device can also be based on the IEEE address. The Zigbee device object network address request ZDO Nwk_addr_req request is sent, and the network address of the gateway is obtained from the received response message, so that the management information is subsequently exchanged with the gateway by using the network address.

The second mode: if the Zigbee device does not pre-configure the IEEE address of the gateway, the Zigbee device object matching description request ZDO Ma tch_Desc_reci request is sent to the local network, where the firmware upgrade cluster identifier OTA Cluster ID is carried, and the identifier indicates that the support supports the Zi gbee firmware. After the gateway of the upgrade function receives the request, the gateway in the local network sends a Zigbee device object matching description response ZDO Ma tch_Desc_rs message to the Zi gbee device, where the network address of the gateway is carried, and then the Zi gbee device can And sending a Zigbee device object IEEE address request ZDO IEEE_addr_req request to the gateway according to the network address of the gateway, and if the Zi gbee device receives the IEEE address of the gateway, it is confirmed that the gateway is a gateway managing itself.

502. The gateway uses the Zigbee device management command to obtain detailed information of the Zigbee device, so as to configure information on the .GW//DevList node in the management tree as shown in FIG. 4.

Specifically, the gateway sends a device information query request message to the Zi gbee device, for example, the Zi gbee device object node description request ZDO Node_Desc_req, the Zi gbee device object simple description request ZDO Simple_Desc_req message, and the like, for requesting to obtain detailed information of the Zigbee device; The device sends a response message to the gateway, where the response message carries the device description information such as the manufacturer identifier and device type of the Zigbee device. The gateway then sends a Zigbee cluster library attribute to the Zigbee device to read the ZCL Read_Attributes request message, where the message carries the current firmware version CurrentFirmwareVersion parameter, to "query the firmware version of the Zigbee device; the Zigbee device sends a response message to the gateway, the response The message carries the firmware version information of the Zigbee device.

503. The gateway configures the detailed information of the Zigbee device into the relevant node of the management tree, and specifically, is configured in the MO management tree as shown in FIG. 4/DevList node in the GW. 504. The gateway establishes a device management session with the device management server by using a remote device management protocol.

Specifically, the gateway receives the device management notification message from the device management server, and then establishes a device management session with the device management server, and provides the basic information of the gateway itself (the information recorded in the ./Devlnfo node) by replacing the Relplace command. The device management server; the device management server acquires the detailed information of the gateway (the information recorded in the ./DevDetail node) by acquiring the Get command, and the information of all the Zigbee devices connected to the gateway (./GW/DevList/record in the node) Information).

505. The device management server configures the new firmware basic information and the range description information of the Zigbee device applicable to the new firmware in the relevant node of the gateway management tree by using the Replace command.

Specifically, configure the new firmware name in the PkgName node, configure the version in the PkgVersion node, and configure the Zigbee device range description information for the new firmware in ApplyTo.

506. The device management server uses the established device management session to perform remote firmware upgrade operation on the Zigbee device through the gateway.

Please refer to the detailed description of the subsequent embodiments for this step.

It should be noted that, since the remote device management protocol (DM/TR069) and the Zigbee protocol are not completely compatible in parameter naming and data type, in step 503, the gateway configures the detailed information of the Zigbee device to the relevant node of the management tree. The conversion of parameter names and data types needs to be performed. Table 1 lists the conversion mappings of the parameters that need to be supported by the firmware upgrade. The Uniform Resource Name (URN) is a string with a special qualified format. Types of.

DM/TR069 (parameter type) Zigbee (parameter type) Parameter description

./Devlnfo/Devid (URN) IEEE Address (Unsigned 64-bit) device unique identifier

./DevInfo/Man( string)

Manufacturer identifier (Unsigned 16-bit) Manufacturer ID

./DevInfo/Mod(string) Manufacturer Device Identifier (Unsigned Manufacturer Device ID or

16-bit) Product Model ./DevDetail/Fw (string)

Firmware version (Unsigned 32-bit) Firmware version number

<x>/Pkg Version (string) Table 1

Figure 6 shows a way for the device management server to remotely upgrade the Zigbee device through the gateway, that is, the normal upgrade mode. The normal upgrade mode means that each Zigbee device is upgraded immediately after obtaining new firmware, and is compatible with other new firmware. The upgrade time of the Zigbee device is irrelevant, including: 601. The device management server controls the gateway to download the new firmware, and triggers the gateway to execute an executable command on the node in the management tree indicating that the Zigbee device is immediately upgraded after the firmware is distributed and distributed.

In steps 501 to 504 in the above embodiment, the information of the Zigbee device managed by the Zigbee device is configured in the gateway, and the device management server establishes a management session for the remote firmware upgrade of the Zigbee device through the gateway, and a new configuration is configured in the gateway. Basic information about the firmware and the range of Zigbee devices to which the new firmware upgrade applies. In this step, the device management server can determine the Zigbee device to be upgraded in a normal upgrade manner according to the Zigbee device information under the gateway and the impact of the new firmware on the current Zigbee network and applications.

This step specifically includes the following implementation methods:

The first way: This method is suitable for the device management server to download the new firmware to the gateway by direct download. The device management server directly writes the new firmware to the ZigbeeFw/<x>/Delivered/PkgData node of the gateway through the Replace command, and triggers the execution of the executable command on the ZigbeeFw/<x>/Delivered/Operations/Upgrade node.

The second way: This method is suitable for the device management server to download the new firmware to the gateway by means of indirect download. The device management server directly writes the download address of the new firmware to the ZigbeeFw/<x>/Download/PkgURL node of the gateway management tree through the Replace command; the device management server executes the ZigbeeFw/<x>/Download/Operations/DownloadUpgrade node by triggering the gateway. The executable command on the screen instructs the gateway to download new firmware from the download address, and then immediately performs a firmware upgrade operation on the Zigbee device to which the new firmware is applied, wherein the gateway can adopt a file transfer protocol or other download protocol, from ZigbeeFw/ Download address on <x>/Download/PkgURL node Download the new firmware.

The third way: This method is suitable for the device management server to download the new firmware to the gateway by means of indirect download. The device management server directly writes the download address of the new firmware to the ZigbeeFw/<x>/Download/PkgURL node of the gateway through the Replace command; the device management server executes the ZigbeeFw/<x>/Download/Operations/Download node by triggering the gateway. An executable command instructing the gateway to download the new firmware; the gateway uses the file transfer protocol or other download protocol to download the new firmware from the download address on the ZigbeeFw/<x>/Download/PkgURL node, and reports the new firmware download to the device management server. The device management server instructs the gateway to perform a firmware upgrade operation on the Zigbee device to which the new firmware is applied by executing an executable command on the ZigbeeFw/<x>/Delivered/Operations/Upgrade node by triggering the gateway.

602. The executable command in the gateway execution management tree indicates that the Zigbee device is upgraded immediately after the firmware distribution and distribution, and the updated Zigbee device range description information and the self-managed Zigbee device according to the new firmware recorded by the node in the management tree. Information, using existing Zigbee firmware download technology, distributes the new firmware to the Zigbee device for the new firmware.

Specifically, the gateway may send a mirror notification to all Zigbee devices by using a broadcast message.

The Image Notify message, which carries the description information of the new firmware, may include: at least one of the applicable Zigbee device model and the device manufacturer identifier of the new firmware. If the device management server writes the Zigbee device's category ID for the applicable firmware upgrade, the maximum version number of the current old firmware of the Zigbee device that can be upgraded, or the minimum version number of the current old firmware of the Zigbee device that can be upgraded, the Image Notify message itself cannot Carrying the above information, the gateway determines, according to the information of each Zigbee device stored on the management tree node, the Zigbee device to which the new firmware is applied, and sends an Image Notify message to the determined Zigbee device in a unicast manner, and the Image Notify message is used at this time. Inform the Zigbee device to download the new firmware. If the broadcast message or the unicast message is used to send the Image Notify message to the Zigbee device in this step, the conversion of the parameter name and the data type needs to be performed with reference to Table 1, and details are not described herein.

After receiving the Image Notify message, the Zigbee device determines whether it needs to perform firmware upgrade according to whether it is a unicast message or according to the applicable description of the new firmware carried in the Image Notify message when it is not a unicast message. If yes, Send a query to the gateway for the next mirror request Query Next Image Request, requesting to obtain new firmware, the message carries its own device model (that is, the information saved on the mod node in the management tree), the device manufacturer identifier (that is, the information saved on the man node in the management tree), and the current Information such as the firmware version number. The gateway sends the size of the new firmware and the size of the download chunk to the Zigbee device. The Zigbee device downloads the new firmware from the gateway according to the size of the new firmware and the size of the download chunk.

603. The gateway instructs the Zigbee device to perform a firmware upgrade immediately.

Specifically, the gateway sends an upgrade end response Upgrade End Response message to each Zigbee device that has successfully downloaded the new firmware, and carries a parameter indicating that the Zigbee device immediately upgrades the new firmware.

Figure 7 shows a way for the device management server to remotely upgrade the Zigbee device through the gateway, that is, the method for controlling the synchronous upgrade of the Zigbee device, including:

701. The device management server controls the gateway to download the new firmware, and triggers the gateway to execute an executable command on the node in the management tree indicating the firmware distribution and the Zigbee device synchronization upgrade after the distribution.

The executable command is an indication that the firmware distribution and all Zigbee devices successfully perform a firmware upgrade after successfully downloading the new firmware.

In this step, the device management server determines, according to the Zigbee device information under the gateway and the impact of the new firmware on the current Zigbee network and the application, determining that the firmware upgrade process of each Zigbee device may affect the communication or application of the Zigbee local network, and therefore each Zigbee is required. The device performs the upgrade at the same time at the same time. Therefore, it is determined that the Zigbee device under the gateway is remotely upgraded by means of synchronous upgrade.

This step specifically includes the following implementation methods:

The first way: This method is suitable for the device management server to download the new firmware to the gateway by direct download. The device management server directly writes the new firmware to the ZigbeeFw/<x>/Delivered/PkgData node of the gateway through the Replace command, and triggers the gateway to execute the executable command on the ZigbeeFw/<x>/Delivered/Operations/UpgradeSync node, indicating the gateway. The Zigbee device to which the new firmware is applied is synchronized to perform a firmware upgrade operation.

The second way: This method is suitable for the device management server to download the new firmware to the gateway by means of indirect download. The device management server directly writes the download address of the new firmware through the Replace command. Entering the ZigbeeFw/<x>/Download/PkgURL node of the gateway; the device management server instructs the gateway to download new firmware from the download address by triggering the gateway to execute an executable command on the ZigbeeFw/<x>/Download/Operations/DownloadUpgradeSync node And then immediately control the Zigbee device to which the new firmware is applied to perform a synchronous upgrade operation. The gateway may use a file transfer protocol or other download protocol to download new firmware from the download address on the ZigbeeFw/<x>/Download/PkgURL node.

The third way: This method is suitable for the device management server to download the new firmware to the gateway by means of indirect download. The device management server directly writes the download address of the new firmware to the ZigbeeFw/<x>/Download/PkgURL node of the gateway MO through the Replace command; the device management server executes the ZigbeeFw/<x>/Download/Operations/Download node by triggering the gateway. Executable command instructing the gateway to download the new firmware; the gateway uses the file transfer protocol or other download protocol to download the new firmware from the download address on the ZigbeeFw/<x>/Download/PkgURL node and report the new firmware download to the device management server Successfully; the device management server instructs the gateway to control the Zigbee device to which the new firmware is applied to perform the firmware upgrade operation by executing an executable command on the ZigbeeFw/<x>/Delivered/Operations/Upgrade Sync node by triggering the gateway.

702. The executable command in the gateway execution management tree indicates that the Zigbee device is upgraded after the firmware is distributed and distributed, and the updated Zigbee device range description information and the self-managed Zigbee device are used according to the new firmware recorded by the node in the management tree. Information, using existing Zigbee firmware download technology, distributes the new firmware to the Zigbee device for the new firmware.

703. The gateway instructs the Zigbee device to perform a synchronization firmware upgrade.

Specifically, the gateway sends an Upgrade End Response message to each Zigbee device that applies the new firmware, where the information carries the information indicating that the Zigbee device temporarily does not perform the firmware upgrade operation; the gateway sends a ZCL Read_Attributes message to each Zigbee device that applies the new firmware, so as to obtain each The new firmware download status of the Zigbee device, after determining that all Zigbee devices have successfully downloaded the new firmware, simultaneously sends a Run Upgrade Request message to each Zigbee device, carrying parameters indicating that the Zigbee device immediately upgrades to the new firmware.

Currently, a Zigbee device that is suitable for new firmware is in a dormant state and cannot receive and execute related upgrade commands. Therefore, in this step, the gateway sets each Zigbee according to the locally recorded applicable new firmware. The backup information, selects all Zigbee devices to which the new firmware is applied, is in an active state, and sends a Run Upgrade Request message to the Zigbee device in the active state, which carries instructions indicating that the firmware upgrade is performed at the selected time. Or, the gateway selects a time point, and sends an indication to the Zigbee device to perform a firmware upgrade at the selected time point when the Zigbee device is in an active state, and if the Zigbee device is in a dormant state at the selected time point, the Zigbee device The sleep time is adjusted to ensure that it is in an active state at this point in time, and the subsequent execution process is the same as step 803 in the embodiment shown in FIG.

FIG. 8 shows a manner in which the device management server remotely upgrades the Zigbee device through the gateway, that is, a method for controlling the timing upgrade of the Zigbee device, including:

801. The device management server controls the gateway to download the new firmware, and triggers the gateway to execute an executable command on the node in the management tree indicating that the Zigbee device is upgraded at a predetermined upgrade time after the firmware is distributed and distributed.

This step specifically includes the following implementation methods:

The first method: This method is applicable to the device management server to directly download the new firmware to the gateway. The device management server directly writes the new firmware into the ZigbeeFw/<x>/Delivered/PkgData node in the management tree of the gateway through the Replace command. , write the scheduled upgrade time to the ZigbeeFw/<x>/Delivered/ Operations/UpgradeSched/UTCTime node, or write ZigbeeFw/<x>/Delivered/Operations/UpgradeSched/OffsetTime relative to the current time offset In the node, the device management server triggers the gateway to execute executable commands on the ZigbeeFw/<x>/Delivered/Operations/UpgradeSched node.

The second way: This method is suitable for the device management server to indirectly download new firmware to the gateway. The device management server directly writes the download address of the new firmware to the ZigbeeFw/<x>/Download/PkgURL node of the gateway through the Replace command, writes the scheduled upgrade time or writes it with respect to the current time offset. , the device management server executes by triggering the gateway Order, instruct the gateway to use the file transfer protocol or other download protocol, from

The download address on the ZigbeeFw/<x>/Delivered/PkgURL node downloads the new firmware, and then controls the Zigbee device for the new firmware to perform the firmware upgrade operation at the specific upgrade time.

The third way: This method is suitable for the device management server to download the new firmware to the gateway by means of indirect download. The device management server directly writes the download address of the new firmware to the ZigbeeFw/<x>/Download/PkgURL node of the gateway through the Replace command, and writes the scheduled upgrade time to the ZigbeeFw/<x>/Delivered/Operations/UpgradeSched/UTCTime node. Or, write the current time offset to the ZigbeeFw/<x>/Delivered/Operations/UpgradeSched/OffsetTime node; the device management server executes ZigbeeFw/<x>/Download/Operations by triggering the gateway An executable command on the /Download node instructs the gateway to download the new firmware; the gateway uses the file transfer protocol or other download protocol to download the new firmware from the download address on the ZigbeeFw/<x>/Download/PkgURL node and to the device management server Report that the new firmware download was successful. The device management server executes the Zigbee device on the ZigbeeFw/<x>/Delivered/Operations/UpgradeSched node by triggering the gateway to enable the Zigbee device that applies the new firmware to perform the firmware upgrade operation during the specific upgrade time.

802. The executable node in the gateway execution management tree indicates that the Zigbee device upgrades the firmware at the predetermined upgrade time after the firmware distribution and distribution, and the updated Zigbee device scope description information is applied according to the new firmware recorded by the node in the management tree. The information of each Zigbee device managed by itself is distributed to the Zigbee device to which the new firmware is applied by using the existing Zigbee firmware download technology.

803. The gateway instructs the Zigbee device to perform a firmware upgrade at a predetermined upgrade time.

This step specifically has the following implementations:

The first method is: the gateway sends an upgrade end response message to each Zigbee device to which the new firmware is applied, where the upgrade time parameter carries the upgrade time parameter, and the upgrade time parameter indicates the specific time for the Zigbee device to perform the firmware upgrade, which may be an absolute time value. It may be relative to the current relative time value that does not affect the implementation of the present invention.

The second method is: the gateway sends an upgrade End Response message to each Zigbee device to which the new firmware is applied, where the information carries the information indicating that the Zigbee device does not perform the firmware upgrade operation temporarily; The gateway sends the Zigbee cluster library attribute to the Zigbee device that needs to be upgraded to read the ZCL Read_Attributes message, in order to obtain the new firmware download status of each Zigbee device. After determining that all Zigbee devices that need to be upgraded have successfully downloaded the new firmware, all needs are needed. The upgraded Zigbee device sends a Run Upgrade Request message, which carries the upgrade time parameter.

Figure 9 shows a way for the device management server to remotely upgrade the Zigbee device through the gateway. The method is to first distribute the new firmware to the Zigbee device, and then trigger the Zigbee device to adopt the normal upgrade mode, the synchronous upgrade mode, or the timed upgrade mode. Control each Zigbee device for firmware upgrade, which specifically includes:

901. The device management server downloads the new firmware to the gateway, and triggers an executable command on the gateway to distribute the new firmware.

This step specifically has the following implementations:

The first way: This method is suitable for the device management server to download the new firmware to the gateway by direct download. The device management server directly writes the new firmware to the ZigbeeFw/<x>/Delivered/PkgData node of the MO of the gateway through the Replace command, and triggers the gateway to execute the executable command on the ZigbeeFw/<x>/Delivered/Operations/Distribute node. Instructs the gateway to perform a distribution firmware operation on the Zigbee device to which the new firmware applies.

The second mode: The device management server directly writes the download address of the new firmware to the ZigbeeFw/<x>/Download/PkgURL node of the gateway management tree through the Replace command, and executes ZigbeeFw/<x>/Download/Operations/ by triggering the gateway. An executable command on the DownloadDistribute node instructing the gateway to download the new firmware from the download address and then immediately distributing the new firmware to the Zigbee device to which the new firmware is applied.

The third way: The device management server directly writes the download address of the new firmware to the gateway ZigbeeFw/<x>/Download/PkgURL node through the Replace command, and executes the ZigbeeFw/<x>/Download/Operations/Download node by triggering the gateway. Executable command instructing the gateway to download the new firmware; the gateway uses the file transfer protocol or other download protocol to download the new firmware from the download address on the ZigbeeFw/<x>/Download/PkgURL node and report the new firmware download to the device management server Successful; the device management server instructs the gateway by executing an executable command on the ZigbeeFw/<x>/Delivered/Operations/Distribute node by triggering the gateway Distribute new firmware to Zigbee devices with new firmware.

902. Executable commands for distributing new firmware on the node in the gateway execution management tree, using the existing Zigbee firmware downloading technology, and the updated Zigbee device scope description information and the self-managed each according to the new firmware recorded by the node in the management tree. Information about the Zigbee device, distributing the new firmware to the Zigbee device for which the new firmware is applied.

903. The gateway sends a message indicating that the firmware upgrade operation is not performed to each Zigbee device that applies the new firmware.

Specifically, the gateway sends an Upgrade End Response message to each Zigbee device that applies the new firmware, and carries information indicating that the Zigbee device temporarily does not perform the firmware upgrade operation.

904. The gateway queries each Zigbee device that applies the new firmware for a new firmware download status.

Specifically, the gateway sends a ZCL Read_Attributes message to each Zigbee device that applies the new firmware, requesting a new firmware download status for each Zigbee device.

905. The gateway reports the distribution of the new firmware to the device management server according to the new firmware download status of each Zigbee device, that is, the firmware download result of the Zigbee device to which the new firmware is applied.

Specifically, the distribution of the new firmware is reported to the device management server by sending an Alert command.

906. The device management server determines, according to the new firmware distribution, the impact of the new firmware on the Zigbee device and the network, the firmware upgrade mode of the Zigbee device, and triggers the gateway to execute an executable command of the firmware upgrade mode determined on the node in the management tree.

The device management server determines whether the Zigbee device needs to be upgraded according to the new firmware distribution. Then, the device management server determines the specific firmware upgrade mode of the Zigbee device according to the new firmware distribution, the impact of the new firmware on the Zigbee device and the network.

The firmware upgrade mode of the Zigbee device determined in the step may be a normal upgrade mode. At this time, the device management server triggers an executable command on the gateway indicating that the Zigbee device is immediately upgraded after the firmware is distributed; and the firmware upgrade manner of the determined Zigbee device is determined. The device can be in the synchronous upgrade mode. In this case, the device management server triggers the executable command on the gateway to indicate that the Zigbee device is upgraded after the firmware is distributed. The firmware upgrade mode of the determined Zigbee device can be the timed upgrade mode. In this case, the device management server triggers. The executable command on the gateway indicates that the Zigbee device is upgraded at the scheduled upgrade time after the firmware is distributed. Optionally, the device management server may re-determine the scope of the Zigbee device applicable to the new firmware according to the new firmware distribution, the impact of the new firmware on the Zigbee device and the network, and re-notify the gateway, and the subsequent gateway executes under the trigger of the device management server. An executable command sends a message indicating the upgrade to the re-determined Zigbee device to which the new component is applied.

It should be noted that, in step 505 of the previous embodiment, the device management server may also pass

The Replace command configures the firmware recovery policy when the Zigbee device fails to be upgraded on the <>/1^(;0¥61^01 node of the management tree. Specifically, it can be configured as "All" or "Failed" or as " None", when configured as "None", it means that no specific firmware recovery policy is currently configured. The gateway needs to send the upgrade result information to the device management server. The device management server reconfigures the specific firmware recovery policy according to the upgrade result information. After the Zigbee device performs the upgrade operation, the method further includes:

1001. The gateway obtains an upgrade result of the Zigbee device.

Specifically, the gateway may send a Zigbee cluster library attribute to the Zigbee device to read the ZCL Read_Attributes request message, which carries a CurrentFirmware Vers ion parameter, where the parameter indicates that the gateway requests to obtain the latest firmware version number of the Zigbee device, and the Zigbee device sends the Zigbee device to the gateway. The response message of the latest firmware version number, the gateway can judge whether the Zigbee device is successfully upgraded according to the latest firmware version number, and record ZigbeeFw/<x>/State/SuccessfulList and/or ZigbeeFw/<x>/State/FailList according to the judgment result. Zigbee device information in the middle, or instant update of the Zigbee device firmware version information under the ./GW/DevList/ node.

1002, when the policy node is None, the current firmware recovery policy is not present, and the gateway reports the upgrade result of the Zigbee device to the device management server by using the Alert command, where the upgrade result status information is carried, and the status information of the upgrade result may be all/partially successful. All/partial failures, etc. When the Policy node is configured as "All" or "Failed", go to step 1006.

1003. The device management server obtains detailed upgrade status information of the ZigbeeFw/<x>/State node from the gateway management tree by using the Get command (for example, obtaining ZigbeeFw/<x>/State/Value, and/or <x>/ State/FailedList, and / or information recorded on the ZigbeeFw/<x>/State/SuccessfulList node).

Optionally, if the gateway updates the Zigbee device under the ./GW/DevList/ node in time For the version information, the device management server can also obtain the upgrade result by reading the firmware version information from the . /GW/DevList/ node.

1004. The device management server reconfigures the firmware recovery policy to All or Failed by using the Replace command in the <x>/Recover/Policy node in the gateway management tree according to the obtained detailed upgrade status information.

Specifically, you can reconfigure the firmware recovery policy to All or Failed according to the obtained detailed upgrade status information and the policy preset by the device management server, or reconfigure the firmware recovery policy to All or Failed according to the administrator's operation instructions.

1005. The device management server triggers an executable command on the ^^/Recover node in the gateway. 1006. The gateway executes the executable command on the 4i"<x>/Recover node, and sends a firmware recovery command to all Zigbee devices applicable to the new firmware when the firmware recovery policy on the <x>/Recover/Policy node is All. When the firmware recovery policy is Failed, a firmware recovery command is sent to the upgraded Zigbee device, where the firmware recovery command is used to instruct the Zigbee device to resume using the firmware before the upgrade.

1007. The gateway queries the current version number of the Zigbee device that receives the firmware recovery command, and determines whether the version before the upgrade has been restored.

Specifically, the process of querying the current version number of the Zigbee device that receives the firmware recovery command includes: The gateway may send a ZCL Read_Attributes request message to the Zigbee device, where

CurrentFirmware Version parameter, which indicates that the gateway requests to obtain the latest firmware version number of the Zigbee device, and the Zigbee device sends a response message to the gateway carrying the latest firmware version number of the Zigbee device.

1008. The gateway sends a firmware recovery result to the device management server by using an Alert command, and the firmware recovery result may be that each Zigbee device successfully recovers, or the upgraded Zigbee device has successfully recovered.

1009. The device management server sends a device management termination command Final to the gateway, and ends the device management session.

The foregoing embodiments are described by using the DM protocol between the device management server and the gateway, and the TR069 protocol may also be adopted between the device management server and the gateway. TR069 Agreement and The DM protocol has great similarities in the interaction mechanism between the device management server and the gateway and the design of the management tree data structure. The remote device management session between the device management server and the gateway is established, and the session is in the session. The gateway manages the data of the nodes in the tree to implement the remote device management function. The main difference is that the nodes in the TR069 protocol have no executable attributes, that is, they cannot trigger a node ( -k ¹ ZigbeeFw/<x> An executable command on /Download/Operations/Download ) instructs the gateway to perform the appropriate action. To instruct the gateway to perform the corresponding operations, the TR069 protocol carries a series of dedicated device management commands (such as Download, Reboot, ...) in the device management message or in a new firmware file downloaded by the gateway. 11 is a structure of a download file supported by the TR069 protocol. When the file is used to encapsulate new firmware to be upgraded, the device management command list related to the file may carry a series of descriptions and commands related to device firmware upgrade, including The file usage, firmware version information, applicable device version range, etc. can be extended to include new Zigbee device range commands, new firmware upgrade mode commands, etc. for the new firmware.

Referring to FIG. 12, an embodiment of the present invention provides a method for implementing a remote upgrade of a Zigbee device. In the method, the device management server and the gateway adopt a TR069 protocol, and the method specifically includes: 1201-1203 is the same as 501-503.

1204. The gateway establishes a device management session with the device management server by using the TR069 protocol. Specifically, the device management server sends a device management notification message to the gateway.

Based on the message, the gateway establishes a device management session with the device management server, and provides the basic device information of the gateway through the Deviceld parameter in the Inform command, which specifically includes the manufacturer identifier, the device identifier (SerialNumber), and the device. Model (ProductClass) and other information; The device management server can further obtain detailed device information of the gateway (information on the ./DevDetail node) by obtaining the parameter value GetParameterValues command, and all Zigbee device information managed by the gateway (./GW/DevList) Information on the node).

Optionally, the gateway may also actively provide the device management server with basic device information and detailed device information of the gateway itself.

1205. The device management server configures new firmware information on the ZigbeeFw/<x> node in the gateway by setting a parameter value SetPammeterValues command.

If the ZigbeeFw/<x> node has not been created in the gateway, the device management server can pass Add the object AddObject command to create the node.

1206. The device management server downloads a new firmware file to the gateway by using a TR069 protocol, where the new firmware file carries a Zigbee device firmware upgrade management command, and the Zigbee device firmware upgrade management command is pre-written by the device management server.

Specifically, the step includes: the device management server instructs the gateway to download a new firmware file from the specified address (URL) by using a Download command; the gateway downloads a new firmware file from the specified address, the new firmware file includes: new firmware and Zigbee device firmware upgrade management Command, Zigbee device firmware upgrade management commands include new firmware upgrade mode command, Zigbee device range command for new firmware, firmware recovery policy command when upgrade fails, etc., where the new firmware upgrade mode command indicates the firmware distribution and distribution after Zigbee A command to upgrade the device immediately, or a command to instruct the firmware distribution and all Zigbee devices to successfully perform a firmware upgrade after successfully downloading the new firmware, or a command to upgrade the Zigbee device at a scheduled upgrade time after the firmware is distributed and distributed.

1207. The gateway uses the Zigbee device firmware upgrade management command to download the new firmware to each Zigbee device to which the new firmware is applied, and instructs each Zigbee device to which the new firmware is applied for firmware upgrade.

Among them, the ordinary upgrade mode, the synchronous upgrade mode, and the timed upgrade mode can be adopted.

1208. The gateway obtains an upgrade result of the Zigbee device.

1209. When the firmware recovery policy command carried in the new firmware file is "None", the gateway reports the upgrade result of the Zigbee device to the device management server, where the upgrade result status information is carried, and the upgrade result status information may be all/partial Success, all/partial failure, etc. When the firmware recovery policy carried in the new firmware file is indicated as "Α1Γ, or "Failed", go to step 1212.

1210. The device management server obtains detailed upgrade status information of the ZigbeeFw/<x>/State node from the gateway management tree by using the Get Parameter Value command (for example, obtaining ZigbeeFw/<x>/State/Value, and/or <x 〉/State/FailedList, and/or information recorded on the ZigbeeFw/<x>/State/SuccessfulList node).

1211. The device management server sends a Recover command to the gateway according to the obtained detailed upgrade status information, where the command carries a firmware recovery policy indication, and the firmware recovery policy indication in the command is “All” or “Failed”. 1212. The gateway sends a firmware recovery command to all Zigbee devices or upgrade failed Zigbee devices to which the new firmware applies according to the firmware recovery policy indication.

1213. The gateway queries the current version number of the Zigbee device that receives the firmware recovery command, determines whether the version before the upgrade has been restored, and updates the information on the ZigbeeFw/<x>/State/Value node according to the determined result.

The specific implementation is the same as step 1007, and details are not described herein again.

1214. The gateway sends a firmware recovery result to the device management server by using the TransportComplete command. The firmware recovery result may be that each Zigbee device successfully recovers, or the upgraded Zigbee device has successfully recovered.

1215. The device management server sends a device management termination command to the gateway, and ends the device management session. This embodiment extends the device management command in the new firmware file downloaded by the gateway, or does not extend the new firmware file, but uses a dedicated device management command to notify the gateway without affecting the implementation of the present invention.

Referring to FIG. 13, an embodiment of the present invention provides a gateway, including:

The remote management information interaction unit 10 is configured to receive, by using a remote device management protocol, a firmware download instruction sent by the device management server, device range indication information applicable to the firmware, and firmware delivery and upgrade indication information;

The firmware obtaining unit 20 is configured to obtain firmware according to the firmware downloading instruction. Specifically, the firmware downloading instruction may carry firmware, and the firmware acquiring unit 20 directly obtains firmware from the firmware downloading instruction, or the firmware downloading instruction carries the firmware. When the address is downloaded, the firmware acquisition unit 20 downloads the firmware based on the download address of the firmware.

The upgrading unit 30 is configured to deliver the acquired information to the Zigbee device to which the firmware is applied by using the Zigbee device firmware upgrade management protocol according to the firmware delivery and upgrade indication information and the device range indication information applicable to the firmware. Firmware, and control the Zigbee device to which the firmware is applied to perform firmware upgrade operations.

Further, in order for the device management server to learn the upgrade result, the gateway further includes: The query unit 40 is configured to query the Zigbee device that performs the firmware upgrade operation to query the upgrade result.

Further, in order to provide an upgrade result to the device management server, the remote management information interaction unit 20 is further configured to receive an upgrade result request message sent by the device management server, and send a response message to the device management server according to the query result.

Further, in order to prevent the normal operation of the Zigbee network after performing the firmware upgrade operation when the Zigbee device fails to be upgraded, the method further includes: a recovery unit 50, configured to use the Zigbee device when the query result indicates that at least one Zigbee device fails to be upgraded. The firmware upgrade management protocol sends a firmware recovery command to the upgraded Zigbee device or a firmware recovery command to all Zigbee devices that perform the firmware upgrade operation, the firmware recovery command is used to indicate that the firmware before the upgrade is restored.

Optionally, the remote management information interaction unit 20 is further configured to receive, by using a remote device management protocol, a firmware recovery indication sent by the device management server, where the firmware recovery indication is that the device management server determines at least one according to the received upgrade result. Sent when the Zigbee device fails to be upgraded; the firmware recovery indication indicates that the Zigbee device that failed the upgrade needs to perform a recovery operation or all Zigbee devices that perform the firmware upgrade operation need to perform a recovery operation.

The firmware delivery and update instruction information indicates that each Zigbee device to which the firmware is applied successfully performs firmware upgrade operation immediately after the firmware is successfully downloaded. In this case, the upgrade unit 30 includes: a firmware delivery unit 301, configured to utilize Zigbee. The device firmware upgrade management protocol indicates that the Zigbee device to which the firmware is applied downloads the acquired firmware; the determining unit 302 is configured to determine whether the Zigbee device to which the firmware is applied has successfully downloaded the firmware; the first upgrade indication sending unit 303 , is used to send instructions for immediate upgrade to the Zigbee device that has been successfully downloaded. The firmware delivery and upgrade indication information is an indication that triggers execution of an executable command on the gateway that indicates that the Zigbee device is immediately upgraded after the firmware is distributed and distributed; or the firmware delivery and upgrade indication information includes triggering execution on the gateway. An indication of an executable command to distribute the firmware, and an indication of an executable command on the triggering execution gateway indicating that the Zigbee device is immediately upgraded after the firmware distribution is received after the firmware download status of the Zigbee device to which the firmware is applied to the device management server; or The firmware delivery and upgrade indication information is a command for obtaining an immediate upgrade of the Zigbee device after the firmware distribution and distribution is obtained from the firmware file sent by the device management server.

Alternatively, the firmware delivery and upgrade indication information indicates that the firmware upgrade operation is performed synchronously after all the Zigbee devices applicable to the firmware successfully download the firmware; at this time, the upgrade unit 30 includes: firmware The issuing unit 301 is configured to use the Zigbee device firmware upgrade management protocol to instruct the Zigbee device to which the firmware is applied to download the acquired firmware. The download result determining unit 304 is configured to determine whether each Zigbee device to which the firmware is applied has been Successfully downloading the firmware; the second upgrade indication sending unit 306 is configured to: when the determination result of the download result determining unit is yes, send the indication information of the immediate upgrade to all Zigbee devices to which the firmware is applied; or, select a time Pointing, the indication information indicating that the firmware upgrade is performed at the selected time point is sent to all the Zigbee devices that are applicable to the firmware. Further, the upgrading unit 30 may further include: a device status determining unit 305, configured to determine the firmware Whether the applicable Zigbee devices are in an active state; the second upgrade indication sending unit 306 is specifically configured to: when the determination result of the download result judging unit is yes and the device state judging unit is yes, all Zigbee devices applicable to the firmware Send instructions for immediate upgrade; judgment in the download result judgment unit If the result of the disconnection is yes, and the device status determination unit is no, all the Zigbee devices to which the firmware is applied are selected to be in an active state at a point in time, and an indication is sent to all Zigbee devices to which the firmware applies, at the selected time. Click the instructions for the firmware upgrade. The firmware delivery and upgrade indication information is an indication of an executable command that triggers execution of the firmware distribution on the gateway and the firmware upgrade is performed immediately after all the Zigbee devices successfully download the firmware; or the firmware delivery and upgrade indication information Including an instruction to trigger an executable command on the execution gateway indicating that the firmware is distributed, and a trigger execution received after the firmware download status of the Zigbee device to which the firmware is applied to the device management server indicates that all Zigbee devices successfully execute the firmware after downloading An indication of an executable command of the firmware upgrade; or the firmware delivery and upgrade indication information is a command to obtain a firmware upgrade from the firmware file sent from the device management server to indicate that the firmware distribution and all Zigbee devices successfully download the firmware.

Alternatively, the firmware delivery and the upgrade indication information indicate that each Zigbee device to which the firmware is applied successfully performs the firmware upgrade operation after the firmware is successfully downloaded. In this case, the upgrade unit includes: a firmware delivery unit 301, Using the Zigbee device firmware upgrade management protocol to instruct the Zigbee device to which the firmware is applied to download the acquired firmware; the third upgrade indication sending unit 307 is configured to send an indication to each of the Zigbee devices to which the firmware is applicable, respectively. Upgrade time for instructions on firmware upgrades. The firmware delivery and upgrade indication information includes: a time parameter indicating the predetermined upgrade time, and an indication of an executable command that triggers execution of the firmware distribution and distribution on the gateway after the Zigbee device upgrades at the predetermined upgrade time. ; or, firmware delivery and upgrade instructions The information includes: an indication of executing an executable command on the execution gateway indicating that the firmware is distributed, and a time parameter indicating the predetermined upgrade time received after the firmware download status of the Zigbee device to which the firmware is applied is reported to the device management server, and triggering The Zigbee device indication information after the firmware distribution is performed on the execution gateway includes: obtaining, from the firmware file sent by the device management server, a command indicating that the Zigbee device upgrades at a predetermined upgrade time after the firmware distribution and distribution.

The firmware delivery unit 301 specifically includes:

The application range determining unit 3011 is configured to determine, according to the device range indication information that is applicable to the firmware and the acquired information of each Zigbee device, the Zigbee device to which the firmware is applied; and the first notification message sending unit 3012, Using the Zigbee device firmware upgrade management protocol, sending a notification message to the Zigbee device to which the firmware is applied in a unicast manner to notify the Zigbee device to which the firmware is applicable to download the firmware; and downloading unit 3013 for The firmware is downloaded to the Zigbee device that receives the notification message;

For example, referring to FIG. 14B, the firmware sending unit 301 specifically includes: a second notification message sending unit 3014, configured to use the Zigbee device firmware upgrade management protocol to broadcast to each Zigbee device according to the acquired information of each Zigbee device. Sending a notification message, where the notification message carries the information of the Zigbee device to which the firmware is applied, where the information of the Zigbee device to which the firmware is applied includes: a manufacturer identifier and a category of the Zigbee device to which the firmware is applied And at least one of the identifiers; and a downloading unit 3013, configured to download the firmware to the Zigbee device that requests the firmware, where the Zigbee device that requests the firmware determines that the Zigbee device that can apply the firmware according to the notification message .

In order to obtain the information of each Zigbee device managed by the gateway, the gateway further includes: a Zigbee device information obtaining unit 60, configured to acquire information of the corresponding Zigbee device from each Zigbee device managed by the Zigbee device firmware upgrade management protocol.

The firmware delivery and upgrade indication information includes: firmware delivery indication information and upgrade indication information; the remote management information interaction unit 10 is specifically configured to send, to the device management server, a firmware download result of the Zigbee device to which the firmware is applied, Receiving the upgrade indication information sent by the device management server, where the upgrade indication information is sent when the device management server determines that the upgrade indication information needs to be sent according to the firmware download result of the Zigbee device to which the firmware is applied. In the embodiment of the present invention, the gateway determines, according to the device range indication information that the new firmware is sent by the device management server, the Zigbee device to which the new firmware is applied, according to the firmware delivery and upgrade indication information sent by the device management server. The Zigbee device for the new firmware delivers new firmware and controls the firmware upgrade operation. This allows the device management server to control the Zigbee device for firmware upgrade. The Zigbee device does not need to support the SNMP protocol. Therefore, the Zigbee device has little change. .

Referring to FIG. 15, an embodiment of the present invention provides a network system, including a gateway and a device management server. The functions of the gateway and the device management server are described in the foregoing method and device description, and details are not described herein.

In the embodiment of the present invention, the gateway determines, according to the device range indication information that the new firmware is sent by the device management server, the Zigbee device to which the new firmware is applied, according to the firmware delivery and upgrade indication information sent by the device management server. The Zigbee device for the new firmware delivers new firmware and controls the firmware upgrade operation. This allows the device management server to control the Zigbee device for firmware upgrade. The Zigbee device does not need to support the SNMP protocol. Therefore, the Zigbee device has little change. .

A person skilled in the art can understand that all or part of the steps of implementing the foregoing embodiments may be performed by a program to instruct related hardware, and the program may be stored in a computer readable storage medium, such as a read only memory. Disk or disc, etc.

The method and apparatus for implementing the remote upgrade of the Zi gbee device provided by the embodiments of the present invention are described above. The description of the above embodiments is only for helping to understand the method and core idea of the present invention; meanwhile, the general technology in the field In the following, the description of the present invention is not limited to the scope of the present invention.

Claims

Rights request

A method for implementing remote upgrade of a Zigbee device, which is characterized by comprising:

Receiving, by using a remote device management protocol, a firmware download instruction sent by the device management server, and acquiring firmware according to the firmware download instruction;

2. The method of claim 1 wherein

The device range indication information applicable to the firmware includes: an identifier of a Zigbee device to which the firmware is applied, an identifier of a Zigbee device manufacturer to which the firmware is applicable, a Zigbee device category identifier to which the firmware is applicable, and an upgrade to At least one of the firmware version range indication information currently used by the acquired Zigbee device of the firmware.

3. The method according to claim 1, wherein the method further comprises:

Use the Zigbee device firmware upgrade management protocol to query the Zigbee device performing the firmware upgrade operation for the upgrade result;

The remote device management protocol is used to receive the upgrade result request message sent by the device management server, and send a response message to the device management server according to the query result.

4. The method according to claim 1, wherein the method further comprises:

When the query result indicates that at least one Zigbee device upgrade fails, the Zigbee device firmware upgrade management protocol is used to send a firmware recovery command to the upgrade failed Zigbee device, and the firmware recovery command is used to indicate that the upgrade failed Zigbee device resumes using the firmware before the upgrade.

5. The method of claim 4, wherein

Before sending the firmware recovery command to the upgraded Zigbee device, the method further includes: transmitting, by using a remote device management protocol, an upgrade result of the Zigbee device to which the firmware is applied, and receiving the firmware sent by the device management server Recovery indication, the firmware The recovery indication is sent by the device management server when determining that at least one Zigbee device fails to upgrade according to the received upgrade result;

The sending a firmware recovery command to the Zigbee device that fails to be upgraded is specifically:

When the firmware upgrade recovery indication indicates that the upgrade failed Zigbee device needs to perform a recovery operation, the Zigbee device firmware upgrade management protocol is used to send a firmware recovery command to the upgraded Zigbee device.

6. The method according to claim 1, wherein the method further comprises:

Query the upgrade result to the Zigbee device that performs the firmware upgrade operation;

When the query result indicates that at least one Zigbee device upgrade fails, the Zigbee device firmware upgrade management protocol is used to send a firmware recovery command to all Zigbee devices performing the firmware upgrade operation, the firmware recovery command is used to indicate that the firmware before the upgrade is restored.

7. The method of claim 6 wherein:

Before sending a firmware recovery command to all Zigbee devices that perform firmware upgrade operations, the method also includes:

Sending, by the remote device management protocol, an upgrade result of the Zigbee device to which the firmware is applied to the device management server; and receiving a firmware recovery indication sent by the device management server, where the firmware recovery indication is an upgrade of the device management server according to the received The result is determined to be sent when at least one Zigbee device fails to be upgraded;

The sending the firmware recovery command to all the Zigbee devices performing the firmware upgrade operation is specifically: when the firmware upgrade recovery indication indicates that all Zigbee devices performing the firmware upgrade operation need to perform a recovery operation, using the Zigbee device firmware upgrade management protocol to All Zigbee devices that perform firmware upgrade operations send firmware recovery commands.

8. The method of claim 1 wherein:

The firmware delivery and upgrade indication information indicates that each Zigbee device to which the firmware is applied successfully performs a firmware upgrade operation immediately after downloading the firmware;

The firmware obtained by delivering the obtained firmware to the Zigbee device to which the firmware is applied, and controlling the Zigbee device to be executed by the firmware, is specifically:

Using the Zigbee device firmware upgrade management protocol to instruct the Zigbee device to which the firmware is applied to download the acquired firmware, and respectively send the immediately upgraded finger to each Zigbee device that successfully downloads the firmware. Show information.

9. The method of claim 1 wherein:

The firmware delivery and upgrade indication information indicates that the firmware upgrade operation is performed synchronously after all the Zigbee devices applicable to the firmware successfully download the firmware;

Using the Zigbee device firmware upgrade management protocol to instruct the Zigbee device to which the firmware is applied to download the acquired firmware, and after all the Zigbee devices to which the firmware is applied successfully download the firmware, send to all Zigbee devices to which the firmware applies. The indication information of the immediate upgrade, or the indication information indicating that the firmware upgrade is performed at the selected time point, is respectively sent to all Zigbee devices to which the firmware is applied.

10. The method of claim 1 wherein:

The firmware delivery and upgrade indication information indicates that each Zigbee device to which the firmware is applied successfully performs a firmware upgrade operation after a predetermined upgrade time after successfully downloading the firmware;

And sending the obtained firmware to the Zigbee device to which the firmware is applied, and controlling the Zigbee device applicable to the firmware to perform the firmware upgrade operation, specifically:

The Zigbee device firmware upgrade management protocol is used to instruct the Zigbee device to which the firmware is applied to download the acquired firmware, and respectively send instructions indicating that the firmware upgrade is performed at the predetermined upgrade time to all Zigbee devices to which the firmware applies.

11. A method according to claim 8, 9 or 10, characterized in that

The firmware delivery and upgrade indication information includes: firmware delivery indication information and upgrade indication information; before the remote device management protocol receives the upgrade indication information sent by the remote device management server, the method further includes:

Sending, by the device management server, a firmware download result of the Zigbee device to which the firmware is applied; and receiving, by using the remote device management protocol, the upgrade indication information sent by the remote device management server is:

After the firmware download result of the Zigbee device to which the firmware is applied is sent to the device management server, the upgrade indication information sent by the device management server is received, where the upgrade indication information is applicable by the device management server according to the firmware. The firmware download result of the Zigbee device needs to be determined. Sent when an upgrade indication is sent.

12. A method according to claim 8, 9 or 10, characterized in that

The firmware obtained by the Zigbee device firmware upgrade management protocol indicating that the firmware is applicable to the Zigbee device download includes:

Determining, according to the device range indication information applicable to the firmware and the acquired information of each Zigbee device, a Zigbee device to which the firmware is applied; using a Zigbee device firmware upgrade management protocol, applying the firmware to the firmware in a unicast manner The Zigbee device sends a notification message to notify the Zigbee device to which the firmware is applicable to download the firmware;

Or,

The Zigbee device firmware upgrade management protocol is used to send a notification message to each Zigbee device by using a Zigbee device firmware upgrade management protocol, where the notification message carries the information of the Zigbee device to which the firmware is applied, where The information of the Zigbee device to which the firmware is applied includes: at least one of a manufacturer identifier and a category identifier of the Zigbee device to which the firmware is applied.

13. The method of claim 12, wherein

Before determining the Zigbee device to which the firmware is applied, the method further includes:

Use the Zigbee device firmware upgrade management protocol to obtain information about each Zigbee device.

14. A gateway, comprising:

15. The gateway of claim 14 wherein:

The device range indication information applicable to the firmware includes: an identifier of a Zigbee device to which the firmware is applied, an identifier of a Zigbee device manufacturer to which the firmware is applicable, a Zigbee device category identifier to which the firmware is applicable, and an upgrade to The firmware version currently used by the Zigbee device of the obtained firmware At least one of the surrounding indications.

The gateway according to claim 14, further comprising:

The query unit is configured to query the Zigbee device performing the firmware upgrade operation by using the Zigbee device firmware upgrade management protocol to query the upgrade result;

The remote management information interaction unit is further configured to receive an upgrade result request message sent by the device management server by using a remote device management protocol, and send a response message to the device management server according to the query result.

The gateway according to claim 14, further comprising:

a recovery unit, configured to send a firmware recovery command to the Zigbee device that fails to be upgraded or send a firmware recovery command to all Zigbee devices that perform the firmware upgrade operation when the query result indicates that at least one Zigbee device upgrade fails, using a Zigbee device firmware upgrade management protocol, The firmware recovery command is used to indicate that the firmware before the upgrade is restored.

18. The gateway of claim 14 wherein:

The remote management information interaction unit is further configured to receive, by using a remote device management protocol, a firmware recovery indication sent by the device management server, where the firmware recovery indication is that the device management server determines at least one Zigbee device upgrade according to the received upgrade result. Sent on failure; the firmware recovery indication indicates that the Zigbee device that failed the upgrade needs to perform a recovery operation or that all Zigbee devices that perform the firmware upgrade operation need to perform a recovery operation.

19. The gateway of claim 14 wherein:

The firmware delivery and upgrade indication information indicates that each Zigbee device to which the firmware is applied successfully performs firmware upgrade operation immediately after downloading the firmware;

The upgrade unit includes:

a firmware delivery unit, configured to use a Zigbee device firmware upgrade management protocol to instruct the Zigbee device to be used by the firmware to download the obtained firmware;

a determining unit, configured to determine whether the Zigbee device to which the firmware is applied has successfully downloaded the firmware;

a first upgrade indication sending unit, configured to send an immediate upgrade to the Zigbee device that has been successfully downloaded Instructions.

20. The gateway of claim 14 wherein:

The upgrade unit includes:

a firmware delivery unit, configured to indicate, by using a Zigbee device firmware upgrade management protocol, the firmware obtained by downloading the Zigbee device used by the firmware;

a download result judging unit, configured to determine whether each Zigbee device to which the firmware is applied has successfully downloaded the firmware;

a second upgrade indication sending unit, configured to: when the determination result of the download result judging unit is yes, send the indication information of the immediate upgrade to all Zigbee devices to which the firmware is applied; or, select a time point, respectively, to the firmware All Zigbee devices that are applicable send instructions indicating a firmware upgrade at the selected point in time.

21. The gateway of claim 14 wherein:

The firmware delivery and upgrade indication information indicates that each Zigbee device to which the firmware is applied successfully performs firmware upgrade operation at a predetermined upgrade time after successfully downloading the firmware;

The upgrade unit includes:

And a third upgrade indication sending unit, configured to send, to each of the Zigbee devices applicable to the firmware, indication information indicating that the firmware upgrade is performed at the predetermined upgrade time.

22. A gateway according to claim 19, 20 or 21, characterized in that

The firmware delivery unit includes:

a scope determining unit, configured to determine, according to the device range indication information applicable to the firmware and the information of each Zigbee device that has been obtained, the Zigbee device to which the firmware is applicable;

a first notification message sending unit, configured to send a notification message to the Zigbee device to which the firmware is applied by using a Zigbee device firmware upgrade management protocol, to notify the Zigbee device to which the firmware is applicable to download the firmware;

a downloading unit, configured to download the firmware to a Zigbee device that receives the notification message; or,

The firmware delivery unit includes:

a second notification message sending unit, configured to send a notification message to each Zigbee device by using a Zigbee device firmware upgrade management protocol according to the obtained information of each Zigbee device, where the notification message carries the firmware The information of the applicable Zigbee device, wherein the information of the Zigbee device to which the firmware is applied includes: at least one of a manufacturer identifier and a category identifier of the Zigbee device to which the firmware is applied;

And a downloading unit, configured to download the firmware to the Zigbee device that requests the firmware, wherein the Zigbee device that requests the firmware is a Zigbee device that determines that the firmware can be applied according to the notification message.

23. The gateway of claim 22, wherein:

The Zigbee device information obtaining unit is configured to acquire information of the corresponding Zigbee device from each Zigbee device managed by the Zigbee device firmware upgrade management protocol.

A network system, comprising: a device management server; and the gateway according to any one of claims 14 to 23, wherein

The device management server is configured to send, by using a remote device management protocol, a firmware download instruction, device range indication information, and firmware delivery and upgrade indication information, to the gateway.