WO2021212293A1

WO2021212293A1 - Method and apparatus for transmitting messages in internet of things, server, device and cloud platform

Info

Publication number: WO2021212293A1
Application number: PCT/CN2020/085739
Authority: WO
Inventors: 吕小强
Original assignee: Oppo广东移动通信有限公司
Priority date: 2020-04-20
Filing date: 2020-04-20
Publication date: 2021-10-28
Also published as: CN115362666A

Abstract

Disclosed in the embodiments of the present application are a method and apparatus for transmitting messages in the Internet of Things, a server, a resource device, a cloud platform, a computer storage medium and a chip. The method for transmitting messages in the Internet of Things comprises: a server sends a first request to a first device, the first request instructing the first device to send a notification message to the server when attribute information of a first resource meets a trigger condition, and the notification message comprising or indicating the attribute information of the first resource; and receives the notification message sent by the first device.

Description

Message transmission method, device, server, equipment and cloud platform in Internet of Things

Technical field

The embodiments of the present application relate to, but are not limited to, the Internet of Things technology, and in particular, to a method, device, server, equipment, and cloud platform for transmitting messages in the Internet of Things.

Background technique

The Internet of Things (IOT) is an important part of the new generation of information technology. As the Internet of Things scenarios become more and more complex, there are more and more information exchange devices, which leads to an increase in the computing resources of the server, and how to reduce the computing resources of the server is an urgent problem in this field.

Summary of the invention

The embodiments of the present application provide a method, device, server, equipment, and cloud platform for message transmission in the Internet of Things.

In the first aspect, a method for transmitting messages in the Internet of Things is provided, including:

The server sends a first request to the first device, the first request instructs the first device to send a notification message to the server when the attribute information of the first resource meets the trigger condition, and the notification message includes or indicates Attribute information of the first resource;

Receiving the notification message sent by the first device.

In a second aspect, a method for transmitting messages in the Internet of Things is provided, including:

The server receives a second message sent by the cloud platform, where the second message includes or instructs the first device to complete the setting of a trigger condition, and the trigger condition is used when the attribute information of the first resource of the first device satisfies the In the case of a trigger condition, trigger the first device to send a notification message to the server, where the notification message includes or indicates the attribute information of the first resource;

Receiving the notification message sent by the first device.

In a third aspect, a method for transmitting messages in the Internet of Things is provided, including:

The cloud platform sends a first request to the first device, the first request instructing the first device to send a notification message to the server when the attribute information of the first resource meets the trigger condition, and the notification message includes or Indicates the attribute information of the first resource.

In a fourth aspect, a method for transmitting messages in the Internet of Things is provided, including:

The first device monitors the attribute information of the first resource;

If the attribute information of the first resource satisfies the trigger condition, a notification message is sent to the server; the notification message includes or indicates the attribute information of the first resource.

In a fifth aspect, a device for transmitting messages in the Internet of Things is provided, including:

The request sending unit is configured to send a first request to a first device, where the first request instructs the first device to send a notification message to the server when the attribute information of the first resource meets a trigger condition, and The notification message includes or indicates the attribute information of the first resource;

The notification message receiving unit is configured to receive the notification message sent by the first device.

In a sixth aspect, a device for transmitting messages in the Internet of Things is provided, including:

The second message receiving unit is configured to receive a second message sent by the cloud platform, the second message including or instructing the first device to complete the setting of the trigger condition, and the trigger condition is used in the first device of the first device. When the attribute information of the resource satisfies the trigger condition, trigger the first device to send a notification message to the server, where the notification message includes or indicates the attribute information of the first resource;

In a seventh aspect, a device for transmitting messages in the Internet of Things is provided, including:

The request sending unit is configured to send a first request to a first device, where the first request instructs the first device to send a notification message to the server when the attribute information of the first resource meets a trigger condition, and The notification message includes or indicates the attribute information of the first resource.

In an eighth aspect, a message transmission device in the Internet of Things is provided, including:

The monitoring unit is used to monitor the attribute information of the first resource;

The notification message sending unit is configured to send a notification message to the server if the attribute information of the first resource meets the trigger condition; the notification message includes or indicates the attribute information of the first resource.

In a ninth aspect, a server is provided, including: a memory and a processor,

The memory stores a computer program that can run on the processor,

When the processor executes the program, the steps in the above method are implemented.

In a tenth aspect, a cloud platform is provided, including: a memory and a processor,

The memory stores a computer program that can run on the processor,

In an eleventh aspect, a first device is provided, including: a memory and a processor,

The memory stores a computer program that can run on the processor,

In a twelfth aspect, a computer storage medium is provided, the computer storage medium stores one or more programs, and the one or more programs can be executed by one or more processors to implement the steps in the foregoing method.

In a thirteenth aspect, a chip is provided, including a processor, configured to call and run a computer program from a memory, so that a device installed with the chip executes the steps in the above method.

In a fourteenth aspect, a computer program product is provided. The computer program product includes a computer storage medium, and the computer storage medium stores computer program code. The computer program code includes instructions that can be executed by at least one processor. When the instructions are executed by the at least one processor, the steps in the method are implemented.

In this embodiment of the application, the server sends a first request to the first device. The first request instructs the first device to send a notification message to the server when the attribute information of the first resource meets the trigger condition. The notification message includes or indicates the first Attribute information of the resource; receiving the notification message sent by the first device. In this way, the server sends the first request to the first device, so that the first device can receive the notification message sent by the first device when the attribute information of the first resource meets the triggering condition, instead of only requiring the attribute of the first resource When the information changes, the notification message sent by the first device is received, so the number of notification messages received by the server decreases, and the computing resources of the server decrease.

Description of the drawings

FIG. 1 is a schematic diagram of an Internet of Things system provided by an embodiment of this application;

2 is a schematic diagram of an information processing process of a server in the Internet of Things provided by an embodiment of this application;

FIG. 3 is a schematic diagram of an implementation process of a method for transmitting messages in the Internet of Things according to an embodiment of the application;

4 is a schematic diagram of the implementation process of another method for transmitting messages in the Internet of Things provided by an embodiment of the application;

FIG. 5 is a schematic diagram of the implementation process of yet another method for message transmission in the Internet of Things provided by an embodiment of this application;

FIG. 6 is a schematic diagram of another Internet of Things system provided by an embodiment of the application;

FIG. 7 is a schematic diagram of the implementation process of yet another method for transmitting messages in the Internet of Things according to an embodiment of the application;

FIG. 8a is a schematic diagram of an implementation process of a method for transmitting messages in the Internet of Things according to another embodiment of this application;

FIG. 8b is a schematic diagram of the implementation process of a method for transmitting messages in the Internet of Things according to another embodiment of this application;

FIG. 8c is a schematic diagram of an implementation process of a method for transmitting messages in the Internet of Things according to still another embodiment of this application;

9 is a schematic diagram of the composition structure of a message transmission device in the Internet of Things provided by an embodiment of the application;

10 is a schematic diagram of the composition structure of another device for transmitting messages in the Internet of Things according to an embodiment of the application;

FIG. 11 is a schematic diagram of the composition structure of another device for transmitting messages in the Internet of Things according to an embodiment of this application;

FIG. 12 is a schematic diagram of the composition structure of another device for transmitting messages in the Internet of Things according to an embodiment of the application;

FIG. 13 is a schematic diagram of a hardware entity of a server provided by an embodiment of the application;

FIG. 14 is a schematic diagram of a hardware entity of a cloud platform provided by an embodiment of the application;

15 is a schematic diagram of a hardware entity of a first device provided by an embodiment of this application;

FIG. 16 is a schematic structural diagram of a chip provided by an embodiment of the present application.

Detailed ways

Hereinafter, the technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems will be described in detail through the embodiments and the accompanying drawings. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments.

It should be noted that in the examples of this application, "first", "second", etc. are used to distinguish similar objects, and not necessarily used to describe a specific sequence or sequence.

In addition, the technical solutions described in the embodiments of the present application can be combined arbitrarily without conflict.

FIG. 1 is a schematic diagram of an Internet of Things system provided by an embodiment of this application. As shown in FIG. 1, the Internet of Things system includes

resource devices

11, 12, 13, 14, and 15, and a server 16. in:

The

resource devices

11, 12, 13, 14, and 15 may be sensor nodes in the Internet of Things. The sensor node includes a sensor and a communication module, where the sensor is used for sensing data, and the communication module is used for communication of resource devices. In implementation, the resource devices can be smart speakers, air conditioners, electric lights, kettles, televisions, mobile phones, computers, smart watches, augmented reality devices, or virtual reality devices.

The server 16 may be an Internet of Things connection management platform, an Internet of Things application server, or a gateway.

In the implementation process, the resource devices 11-15 can all be connected to the server 16, and the server 16 can exchange information with the resource devices 11-15. For example, the server 16 can manage the resource devices 11-15, such as resource device software and hardware upgrades. , At least one of resource equipment function control, resource subscription and resource query, etc. It should be understood that in other embodiments, the

resource device

14 or 15 may be directly connected to the server 16.

Resource devices can also be connected to each other. For example, resource device 11 can be connected to

resource devices

14 and 15, respectively. Messages or data between server 16 and resource device 14 are forwarded via resource device 11, and resource device 11 can also connect to

resource devices

14 and 15. Messages or data undergo certain processing, such as data preprocessing/filtering, communication protocol or message format conversion, etc.

The communication connection between the resource devices, or between the resource device and the server through the communication module.

It should be noted that the embodiment of the present application does not limit the connection mode or communication protocol between the resource device and the resource device, or between the server and the resource device. For example, between the server 16 and the resource device 11/12/13, or between the resource device 11 and the resource device 14/15, a wired connection can be used, and the Constrained Application Protocol (CoAP) can be used for data or message transmission. Or, between the server 16 and the resource device 11/12/13, or between the resource device 11 and the resource device 14/15, a cellular-based Narrow Band Internet of Things (NB-IoT) wireless connection technology can be used , Use Message Queuing Telemetry Transport (MQTT) protocol for data or message transmission.

It should be noted that in the Internet of Things technology, the server manages the resource equipment in the form of resources. The "resource" here is an abstract concept, which can refer to the physical form of the resource equipment, or the model of the resource equipment, software and hardware. Static attributes such as version or manufacturer can also refer to dynamic attributes such as operations that the resource device can perform, events that can be reported, parameters, or status parameters that can be read. Each resource has a unique identifier. The identifier can be a name, a Uniform Resource Identifier (URI), a Uniform Resource Locator (URL), or any other type that can distinguish and identify resources. Format. In this application, URI is taken as an example to identify resources. For example, the URI of server 16 is "/server16", and the URIs of resource devices 11 to 15 are "/server16/device11", "/server16/device12", and "/server16" /device13", "/server16/device11/device14", "/server16/device11/device15".

Figure 2 is a schematic diagram of the information processing process of a server in the Internet of Things provided by an embodiment of this application. As shown in Figure 2, the server has a rule resource (oic.r.rule), and the rule resource is a collective resource. The set of resources includes the following three resources, namely a rule input resource (oic.r.ruleinput) 21, a rule expression resource (oic.r.ruleexpressiom) 22, and a rule behavior resource (oic.r.ruleaction) 23.

The rule input resource 21 and the rule action resource 23 are both a collection resource, which may include a rule input collection (Rule Input Collection) and a rule action collection (Rule Actions Collection), respectively. For a rule, the rule input of this rule is stored in the rule input resource 21, and the expression of each rule input is as follows:

{"anchor":"mytemperature",//The alias of rule input, used in ruleexpression;

"href":"/mylocaltemperaturesensor",//Relative URI of the hardware entered by the rule

"rel":["ruleinput"],//Indicates that it is a rule input

"rt":["oic.r.temperature"],//Resource type

"if":["oic.if.s"]//interface}

The regular expression resource 22 includes regular expressions and rule results. For example, the regular expression can be: mytemperature:temperature>="25". When the rule result changes from false to true, the rule input changes from not satisfying the regular expression to When the regular expression is satisfied, the rule behavior is executed, and the execution rule behavior is generally to modify the attributes of a certain resource or a series of resources.

Continuing to refer to Figure 2, when the rule input resource 21 of the server receives a resource (for example, mytemperature), this resource can be a resource on the server or a resource device other than the server, and the server can link to the rule based on the received resource Input (for example, the value of mytemperature), that is, the server obtains the rule input according to the resource. The rule input can be understood as the value of the resource. The server can transmit the rule input to the rule expression. If the rule enable (Rule Enable) is true, the server Determine whether the rule input satisfies the rule expression. If it is satisfied, output the rule result. If the rule result is true and Action Enable is true, link the scene information in the scene set according to the rule result and link to the scene set The scene information of is assigned to the scene information in the rule behavior resource 23. The rule input is the input element of the rule judgment condition, and the rule expression is an expression formed according to the input of each rule. If the rule expression is judged to be true, the rule behavior is executed.

Among them, the rule enablement is used to enable the server to determine whether or not the rule expression is required. For example, the server can control to disable/enable a certain resource for a period of time, so that the rule enablement corresponding to this resource is fasle/true. The behavior enable is used to determine whether to execute the behavior action when the rule result is true. The true or false of the rule enable and the behavior enable can be determined based on the user's operation or configuration determination.

The following introduces an IoT scenario. The rule in the server is to turn on the air conditioner when the indoor temperature reaches 30 degrees. The temperature is a rule input. The temperature is greater than or equal to 30 is a rule expression. When the temperature changes, the server's rule engine will It is judged whether the temperature is greater than or equal to 30. If the judgment result is true, the rule behavior of "turn on the air conditioner" will be executed.

In the current technical architecture of the Internet of Things, a server running rules needs to subscribe to a resource pointed to or linked by a ruleInput resource. This resource can be called a target input resource, for example, a temperature sensor of a resource device. When the attribute information of the target input resource changes, the resource device will send a notification message to the server running the rule. When the server receives the notification message, it will substitute the attribute value of the target input resource's attribute information into the regular expression for calculation . However, each notification message of the target input resource will cause the server to perform a regular expression calculation, which greatly wastes the server's resources.

At least based on the existing problems, FIG. 3 is a schematic diagram of the implementation process of a message transmission method in the Internet of Things provided by an embodiment of the application. As shown in FIG. 3, the method is applied to a server, and the method includes:

S301. The server sends a first request to the first device. The first request instructs the first device to send a notification message to the server when the attribute information of the first resource meets the trigger condition. The notification message includes or indicates the attribute information of the first resource. .

The first device may be any of the resource devices listed above.

The first device in the embodiment of this application can be understood as an input resource device (inputDevice), and the server in the embodiment of this application can be understood as a rule resource device (ruleDevice).

There is a resource referenced by the rule input (ruleInput) on the inputDevice, which means that a certain resource of the inputDevice is used as the input resource of the rule.

The ruleDevice is a resource device that saves the ruleInput resource, the rule expression ruleExpression resource, and the rule action ruleAction resource, and runs the entire rule on the ruleDevice.

The first resource may be a resource in the first device, for example, a sensor in the first device; or, the first resource may be a resource outside the first device, for example, a camera in the first device shoots for a certain target/object The first resource is the resource in the target/object.

The attribute information of the first resource can be obtained in the following manner: the first device senses the attribute information of the first resource, or a device outside the first device senses the attribute information of the first resource and sends the attribute information of the first resource Give the first device.

In an implementation manner, the first request may include a trigger condition of the notification message, so that the first device can obtain the trigger condition by parsing the first request.

In another implementation manner, the first request may not include the trigger condition of the notification message, but may include at least one of the trigger condition's identifier, address, index, or link, so that the first device can be based on the trigger condition. At least one of the identification, address, index, or link, the trigger condition is acquired.

In the embodiment of this application, the trigger condition is determined by the server. A resource device can have at least one resource, and different resources on a resource device can correspond to different trigger conditions. For example, a resource device can correspond to temperature resources. The trigger condition and the trigger condition of the brightness resource.

In an implementation manner, the notification message indicates the attribute information of the first resource of the first device. For example, the notification message includes the resource identifier (for example, URI or resource name) of the first resource, so that the server can obtain the attribute information of the first resource through the resource identifier of the first resource.

In another implementation manner, the notification message may include the attribute information of the first resource, so that the server can parse the notification message to obtain the attribute information of the first resource.

The attribute information of the first resource may include the attribute value of the first resource. In an implementation manner, the attribute information of the first resource may further include at least one of the status information, data type, location information, and parameter information of the first device of the first resource. In the implementation process, the attribute value of the first resource may be a value measured by a sensor, for example, a sensed value of the sensor. It should be understood that, in a feasible implementation manner, the first device may also include a second resource, a third resource, etc., and each resource may have its own attribute information.

Taking the resource of the first device as a sensor (such as a sensor) in the first device, for example, the first device may be a monitoring resource device used to monitor the opening or closing of a room door, and the first resource may be the monitoring resource Sensors in the device. In an implementation scenario, when the room door is opened, the sensor's sensing value is 1, and the attribute value of the first resource is 1, where 1 means the room door is open; when the room door is closed, the sensor's sensing value If the value is 0, the attribute value of the first resource is 0, where 0 means that the room door is closed.

S303. The server receives the notification message sent by the first device.

It should be understood that when the notification message includes the resource identifier of the first resource of the first device, the server obtains the resource identifier of the first resource by parsing the notification message, and obtains the attribute information of the first resource corresponding to the resource identifier.

When the notification message includes the attribute information of the first resource of the first device, the server obtains the attribute information of the first resource of the first device by parsing the notification message.

In this embodiment of the application, the server sends the first request to the first device, so that the first device can receive the notification message sent by the first device only when the attribute information of the first resource meets the trigger condition, instead of only the first device. As soon as the attribute information of the resource changes, the notification message sent by the first device is received, so that the number of notification messages received by the server decreases, and the computing resources of the server decrease.

Fig. 4 is a schematic diagram of the implementation process of another method for message transmission in the Internet of Things provided by an embodiment of the application. As shown in Fig. 4, the method includes:

S401. The server sends a first request to the first device, where the first request instructs the first device to send a notification message to the server when the attribute information of the first resource meets the trigger condition. The notification message includes or indicates the attribute information of the first resource. ; The first device receives the first request sent by the server.

When the first request includes the trigger condition, the first device may obtain the trigger condition by parsing the first request. When the first request indicates the trigger condition, the first device can obtain the identifier, address, index or link of the trigger condition by parsing the first request, and obtain it from the server or other device based on the identifier, address, index or link of the trigger condition Triggering conditions.

S403: The first device monitors the attribute information of the first resource, and determines that the attribute information of the first resource satisfies the trigger condition.

The first device can monitor the attribute information of the first resource continuously or periodically or non-periodically, and each time it monitors the attribute information of the first resource, it determines whether the attribute information of the first resource meets the trigger condition, If the first device determines that the attribute information of the first resource meets the trigger condition, it sends a notification message to the server. If the first device determines that the attribute information of the first resource does not meet the trigger condition, it does not send the notification message to the server, and the first device continues Monitor the attribute information of the first resource.

S405. The first device sends a notification message to the server; the server receives the notification message sent by the first device.

In the embodiment of the present application, when the first device interacts with the server, because the first device can obtain the trigger condition through the first request sent by the server, the first device monitors that the attribute information of the first resource meets the trigger condition. Send notification messages to the server, and the number of notification messages received by the server is small, and the computing resources of the server are low.

FIG. 5 is a schematic diagram of the implementation process of another method for message transmission in the Internet of Things provided by an embodiment of the application. As shown in FIG. 5, the method includes:

S501. The server creates a rule resource.

The rule resource may include constraint conditions (the constraint conditions in the embodiments of this application can all be understood as the first constraint condition), N input resources corresponding to the constraint conditions, and M behavior resources corresponding to the constraint conditions; N is greater than or A positive integer equal to 1; M is a positive integer greater than or equal to 1. Among them, the N input resources include the first resource. Constraints can be understood as regular expressions.

In one case, any one of the N input resources is different from any one of the M behavior resources. In another case, part of the input resources in the N input resources is the same as part of the input resources in the M behavior resources.

In an embodiment, the rule resource created by the server may include at least two constraint conditions, input resources corresponding to the at least two constraint conditions, and behavior resources corresponding to the at least two constraint conditions. Among them, the at least two constraint conditions may include the first constraint condition.

For example, the rule resource created by the server may include a first constraint condition and a second constraint condition, as well as N input resources corresponding to the first constraint condition, M behavior resources corresponding to the first constraint condition, and the second constraint condition. P input resources corresponding to the constraint condition, and Q behavior resources corresponding to the second constraint condition. Wherein, P or Q is a positive integer greater than or equal to 1. Wherein, any one of the N input resources is different from any one of the P input resources, or some of the N input resources are the same as some of the P input resources. Among them, any one of the M behavior resources is different from any one of the Q behavior resources, or some of the M behavior resources are the same as some of the Q behavior resources.

Refer to Figure 2. Rule resources include rule input resources, rule expression resources, and rule behavior resources. Wherein, at least two constraint conditions can be included in the rule expression resource, input resources corresponding to the at least two constraint conditions can be included in the rule input resource, and behavior resources corresponding to the at least two constraint conditions can be included in the rule behavior resource. Inside.

It is worth noting that the embodiment of the present application takes the rule resource including the first constraint condition as an example to illustrate the message transmission mode. Those skilled in the art should understand that the message transmission mode when the rule resource includes at least two constraint conditions, It is similar to the message transmission mode when the rule resource includes the first constraint condition.

The number of N in the embodiment of the present application may be the same as the number of resources in the constraint condition. For example, when the constraint condition is "(resource A>17) and ((resource B=false)or (resource C<16))", there are three resources A, B, and C in the constraint condition, and the resource corresponding to the constraint condition Are resources A, B, and C.

In the embodiment of the present application, a certain input resource among the N input resources and a certain behavior resource among the M behavior resources may be resources on the same device, or may be resources on different devices.

In an embodiment, the server may determine the constraint conditions based on the user's input. For example, the server can receive the user's input "(resource A>17) and ((resource B=false) or (resource C<16))", thereby obtaining the constraint condition "(resource A>17) and ((resource B= false)or(resource C<16))".

In another embodiment, the server may modify the constraint condition based on the user's operation on the constraint condition. For example, the server can receive the user's operation to modify "resource C<16" to "resource C<25", thereby modifying the constraint condition to "(resource A>17) and ((resource B=false) or (resource C< 25))".

In yet another embodiment, the determination and modification of the constraint conditions may be obtained through configuration. For example, the server may receive configuration information sent by a resource device, and the configuration information may include or indicate constraint conditions, or include or indicate modification information to the constraint conditions, so that the server can obtain the constraint conditions based on the configuration information, or can be based on the configuration information Modify the constraints.

S503: The server sends a request for subscribing to the first resource to the first device; the first device receives the request for subscribing to the first resource sent by the server.

In the Internet of Things scenario, the server needs to register the resource in the rule resource after it obtains the created rule resource. Generally speaking, the server can send a resource subscription request to one or at least two devices corresponding to the resource in the rule resource. Wherein, the resource subscription request may include or indicate the resource identifier to be subscribed.

Taking the example of the server subscribing to the first resource, the server may send the identifier or name of the first resource to the first device, so that the first device may subscribe to the first resource based on the received identifier or name of the first resource. That is, the request for subscribing to the first resource may include the identifier or name of the first resource.

Understandably, the server can not only subscribe to the first resource of the first device, but also subscribe to other resources in the first device, such as the second resource and the third resource in the first device, or it can also subscribe to the Internet of Things. Resources in other resource devices.

The first device may store the identification or name of the first resource in the subscription resource of the first device. After the storage is completed, the first device also completes the subscription of the first resource.

S505: The first device sends a first message to the server, where the first message includes or indicates that the first resource subscription is successful.

After the first device has subscribed to the resource, the first device may send the first message to the server. The first message can also be understood as a resource subscription success message; the server receives the first message sent by the first device.

After the server receives the first message sent by the first device, the server determines that the first resource subscription is completed.

In the implementation process, the server can determine the trigger condition based on the constraint condition.

In one embodiment, if N is equal to 1, that is, there is only one rule input resource in the rule resource created by the server, the server can determine the trigger based on the expression corresponding to a rule input resource (the first resource) included in the constraint condition condition. For example, the server may determine the constraint condition as the trigger condition. For another example, the server can modify the parameters in the constraint condition to obtain the trigger condition.

In another embodiment, if N is greater than 1, that is, in the case that the rule resource created by the server includes at least two rule input resources, the server can decompose the constraint conditions, so that the decomposed rule input can be based on at least two rule inputs. The expressions corresponding to the resources respectively obtain the trigger conditions. For the implementation process of the server determining the trigger conditions based on the constraint conditions, please refer to S507 to S509.

S507. The server decomposes the constraint condition into N sub-conditions; the N sub-conditions have a one-to-one correspondence with the N input resources; and the sub-conditions corresponding to the first resource are determined from the N sub-conditions.

Among them, one sub-condition corresponds to one resource, that is, when the constraint condition is decomposed into N sub-conditions, one sub-condition corresponds to only one resource. For example, when the constraint condition is "(resource A>17) and ((resource B=false) or (resource C<16))", since there are three resources in the constraint condition, they are resource A and resource B. And resource C, so that the server can decompose the constraint condition into three sub-conditions, which are "resource A>17" corresponding to resource A, "resource B=false" corresponding to resource B, and "resource C" corresponding to resource C <25".

Since the N sub-conditions include the sub-conditions corresponding to the first resource, the server may determine the sub-conditions corresponding to the first resource from the N sub-conditions.

S509: The server determines a trigger condition based on the sub-condition corresponding to the first resource.

Wherein, the trigger condition may include one of the following: the attribute information of the first resource is greater than the first threshold; within the first time period, the attribute information of the first resource is greater than the first threshold; the attribute information of the first resource is less than the second threshold; During the second time period, the attribute information of the first resource is less than the second threshold; during the third time period, the attribute information of the first resource changes, and the changed value is greater than the first value.

The first duration, the second duration, and the third duration may be durations determined by the first device itself, or the first duration, the second duration, and the third duration may be durations configured by the server or other devices. The first duration, the second duration, or the third duration may be the running duration of a certain timer before it expires.

In an implementation manner, the server may determine the sub-condition corresponding to the first resource as the trigger condition. For example, the sub-condition corresponding to the first resource is "resource A>17", and it is determined that the trigger condition is also "resource A>17".

In another implementation manner, the server may modify the determined sub-condition corresponding to the first resource, and determine the modified sub-condition corresponding to the first resource as the trigger condition. That is, the threshold or value corresponding to the sub-condition corresponding to the first resource may be greater than or smaller than the threshold or value corresponding to the trigger condition. In one embodiment, the server may determine the threshold or value corresponding to the sub-condition corresponding to the first resource, and add or subtract a certain value from the threshold or value corresponding to the sub-condition to obtain the threshold corresponding to the trigger condition Or numerical value. For example, when the sub-condition corresponding to the first resource is "resource A>17", the trigger condition may be "resource A>18", or the trigger condition may be "resource A>15".

It should be noted that the embodiment of the present application does not limit the steps S503 to S505 and the step server to determine the trigger condition based on the constraint condition. The order of execution during execution, for example, steps S503 to S505 can be executed first, and then the step server is executed based on the constraint. The condition determines the trigger condition. Alternatively, the step server may first determine the trigger condition based on the constraint condition, and then steps S503 to S505 are executed, or steps S503 to S505 can be executed synchronously with the step server determining the trigger condition based on the constraint condition.

S511. The server sends a first request to the first device. The first request instructs the first device to send a notification message to the server when the attribute information of the first resource meets the trigger condition. The notification message includes or indicates the attribute information of the first resource. ; The first device receives the first request sent by the server.

Wherein, the attribute information of the first resource satisfies the trigger condition, and may include one of the following:

The attribute information of the first resource is greater than the first threshold;

Within the first time period, the attribute information of the first resource is greater than the first threshold;

The attribute information of the first resource is less than the second threshold;

In the second time period, the attribute information of the first resource is less than the second threshold;

The attribute information of the first resource changes within the third time period, and the changed value is greater than the first value.

S513: The first device sends a second message to the server, where the second message includes or indicates that the first device completes the setting of the trigger condition; the server receives the second message sent by the first device.

After receiving the first request, the first device can obtain the trigger condition of the notification message based on the first request, and set the trigger condition. For example, an implementation manner of setting the trigger condition may be to store the trigger condition in the first request. In one device or in the subscription resource of the first device. After the first device finishes setting the trigger condition, it can send a second message to the server.

S515: The first device monitors the attribute information of the first resource, and determines that the attribute information of the first resource satisfies the trigger condition.

Wherein, the notification message includes or indicates the attribute information of the first resource.

It is worth noting that in this embodiment of the application, the attribute information of the first resource satisfies the trigger condition, which can be understood as the attribute value of the first resource satisfies the trigger condition.

S517. The first device sends a notification message to the server; the server receives the notification message sent by the first device.

The first device may send a notification message to the server when it is determined that the attribute information of the first resource satisfies the trigger condition. In an embodiment, the first device may determine that if the attribute information of the first resource is greater than the first threshold, send a notification message to the server. For example, the trigger condition is that the attribute information is greater than 25, and the first device determines that the attribute information of the first resource is 26, and sends a notification message to the server.

In another embodiment, the first device may determine that if the attribute information is greater than the first threshold within the first time period, send a notification message to the server.

In implementation, the first device may start and run the first timer when it is determined that the attribute information of the first resource is greater than the first threshold. The first timer is configured to run for the first period of time and then time out. During the operation of the timer, the first device will continuously monitor whether the attribute information of the first resource is still greater than the first threshold. If so, the first device sends a notification message to the server, if not, the first device does not send a notification to the server Message, and continue to monitor the attribute information of the first resource.

In another embodiment, the first device may send a notification message to the server after determining that the attribute information of the first resource is less than the second threshold, or the first device may determine that: within the second time period, the first device The attribute information of a resource is less than the second threshold.

In another embodiment, the first device may send a notification message to the server after determining that the attribute information of the first resource has changed within the third time period and the changed value is greater than the first value.

In implementation, the first device may determine the attribute information of the first resource before and after the third time period every third time period, and if it is determined that the change value of the attribute information of the first resource is greater than the first value, it sends a notification message to the server. For example, the first device can control a second timer to restart periodically, the second timer is configured to run for a third period of time and then time out, and restart in the case of timeout, the first device can obtain: the second timer respectively The attribute information of the first resource corresponding to the restart time, and the attribute information of the first resource corresponding to the second timer at the time of timeout, so as to obtain the value of the change in the attribute information of the first resource within the first time period.

S519. The server executes the rule behavior.

In one embodiment, since the first device has determined that the attribute information of the first resource meets the trigger condition, the server does not need to determine whether the attribute information of the first resource still meets the sub-conditions corresponding to the first resource, but directly By default, the attribute information of the first resource has met the sub-conditions corresponding to the first resource.

In another implementation manner, after obtaining the notification message, the server may obtain the attribute information of the first resource through the notification message, and determine whether the attribute information of the first resource satisfies the sub-condition corresponding to the first resource.

If N is equal to 1, that is, there are only sub-conditions corresponding to the first resource in the constraint condition, and the server executes the rule behavior when it determines that the attribute information of the first resource satisfies the constraint condition.

If N is greater than 1, that is, at least sub-conditions are included in the constraint condition, and the server determines that the attribute information of the first resource satisfies the sub-conditions corresponding to the first resource, the server obtains N input resources, except for the first resource The attribute information of N-1 resources, and it is determined that if the attribute information of each resource in the N-1 resources satisfies the sub-conditions corresponding to each resource, the rule behavior is executed.

In one embodiment, the server can obtain the attribute information of N-1 resources through the identification of N-1 resources, and then determine whether the attribute information of each resource in the attribute information of N-1 resources meets the requirements of The sub-condition corresponding to each resource.

In another implementation manner, the server may determine whether a notification message sent by a device corresponding to N-1 resources is received, and if it is received, determine the attribute information of each resource in the attribute information of the N-1 resources. , All satisfy the sub-conditions corresponding to each resource.

It can be understood that when the constraint condition includes N sub-conditions, if the server determines that any one of the N input resources does not satisfy the sub-condition corresponding to the resource, the server does not execute the rule behavior.

The server executing the rule behavior can be implemented in the following way: modifying the attribute information of the M behavior resources.

For example, if the rule created by the server is: if the door is opened, turn on the light. Then, when the sensor of the monitoring device used to detect the door switch detects that the door turns from closed to open, the monitoring device sends the door instruction to the server, and the server determines that the door turns from closed to open based on the door instruction, and the server executes Rule behavior, for example, the attribute information of the resource used to turn on or off the light can be modified from 0 to 1, where 0 means that the state of the light is off, and 1 means that the state of the light is on.

After the server modifies the attribute information of the M behavior resources, the server can send an indication message to a series of resource devices corresponding to the M behavior resources. The indication message includes or indicates the attribute information of the behavior resource, so that the series of devices can get the behavior After the attribute information of the resource, the behavior resource is converted to the corresponding state based on the attribute information of the behavior resource. The series of resource devices includes at least one resource device, and the at least one resource device may include or exclude the first device.

Refer to Figure 2. When the rule result in the rule expression resource is true, the server can link to the scene information corresponding to the rule result or the rule expression in the scene set based on the rule result, and assign the linked scene information to Give the scene information of the rule behavior. The scene information of the rule behavior may be the attribute information of the behavior resource in the embodiment of the application.

In the embodiment of the present application, the pressure of the server to determine the sub-conditions corresponding to the first resource is sunk and decomposed to each resource device through the method of setting the trigger condition by the first device, which can effectively reduce the number of server determinations and reduce The working pressure of the server saves the resources of the server, and after the server receives the notification message, it executes the regular behavior, so as to realize the linkage of the resource equipment in the Internet of Things.

FIG. 6 is a schematic diagram of another Internet of Things system provided by an embodiment of this application. The difference between the Internet of Things system in Fig. 6 and the Internet of Things system in Fig. 1 is that the Internet of Things system in Fig. 6 also includes a cloud platform 17, in which:

The cloud platform 17 is wirelessly connected to the server 16, and the cloud platform may also be wirelessly connected to the resource devices 11-15.

In implementation, the communication protocol on which the connection between the cloud platform and the server is based may be the same or different from the communication protocol on which the connection of the resource device is based, and may also be different or the same as the communication protocol on which the connection between the server and the resource device is based.

FIG. 7 is a schematic diagram of the implementation process of another method for transmitting messages in the Internet of Things provided by an embodiment of the application. As shown in FIG. 7, the method includes:

S701. The cloud platform sends a first request to the first device. The first request instructs the first device to send a notification message to the server when the attribute information of the first resource satisfies the trigger condition. The notification message includes or indicates the attribute of the first resource. Information; the first device receives the first request sent by the cloud platform.

S703. The server receives a second message sent by the cloud platform, where the second message includes or indicates that the first device has completed setting the trigger condition, and the trigger condition is used when the attribute information of the first resource of the first device meets the trigger condition, Trigger the first device to send a notification message to the server.

In an implementation manner, before S703, there may be a step of the cloud platform sending the second message to the server.

In an embodiment, the first device may send a trigger condition setting complete message to the cloud platform after setting the trigger condition, so that the cloud platform can determine that the first device will set the trigger condition after receiving the trigger condition setting complete message. After the trigger condition is set, the cloud platform can send a second message to the server.

In another implementation manner, after the cloud platform sends the first request to the first device, the first device will set the trigger condition by default, so the second message can be sent to the server. The cloud platform may also send a second message to the server after sending the first request and after a certain period of time.

S705: The first device monitors the attribute information of the first resource, and determines that the attribute information of the first resource satisfies the trigger condition.

S707. The first device sends a notification message to the server; the server receives the notification message sent by the first device.

In the embodiment of the present application, when the first device, the server, and the cloud platform interact, the cloud platform determines the trigger condition and sends the first request to the first device. Compared with the embodiment corresponding to any one of FIGS. 3 to 5 , The trigger condition does not need to be determined by the server, thereby further reducing the amount of calculations on the server.

Fig. 8a is a schematic diagram of the implementation process of a method for message transmission in the Internet of Things according to another embodiment of the application. As shown in Fig. 8a, the method includes:

S801. The server creates a rule resource.

The rule resource may include constraint conditions, N input resources corresponding to the constraint conditions, and M behavior resources corresponding to the constraint conditions; N is a positive integer greater than or equal to 1; M is a positive integer greater than or equal to 1. Among them, the N input resources include the first resource.

S803: The server sends a request for subscribing to the first resource to the first device; the first device receives the request for subscribing to the first resource sent by the server.

S805. The first device sends a first message to the server, where the first message includes or indicates that the first resource subscription is successful; the server receives the first message sent by the first device.

S807. The server sends a third message to the cloud platform, where the third message includes or indicates: constraint conditions and N input resources; the cloud platform receives the third message sent by the server.

For example, the third message may include or indicate resource A, resource B, and resource C, and the third message may include or indicate "(resource A>17) and ((resource B=false) or (resource C<16) )".

It should be noted that the embodiment of the present application does not limit the order of execution of steps S803 to S805 and step S807. For example, steps S803 to S805 may be executed first, and then step S807 may be executed, or step S807 may be executed first. Steps S803 to S805 are executed again, or steps S803 to S805 and step S807 can be executed synchronously.

In the implementation process, the cloud platform can determine the trigger condition based on the constraint condition.

In one embodiment, if N is equal to 1, that is, there is only one rule input resource among the rule resources created by the server, after the server sends the third message including the constraint condition to the cloud platform, the server can be based on the constraint condition. A rule enters the expression corresponding to the resource (the first resource) to determine the trigger condition. For example, the cloud platform may determine the constraint condition as the trigger condition. For another example, the cloud platform can modify the parameters in the constraint condition to obtain the trigger condition.

In another embodiment, if N is greater than 1, that is, when the rule resource created by the server includes at least two rule input resources, after the server sends the third message including the constraint condition to the cloud platform, the cloud platform may The constraint conditions are decomposed, so that the respective expressions corresponding to the resources can be input based on the decomposed at least two rules to obtain the trigger conditions. For the implementation process of the cloud platform to determine the trigger conditions based on the constraint conditions, please refer to S809 to S811.

S809. The cloud platform decomposes the constraint condition into N sub-conditions; N is a positive integer greater than or equal to 1, and the N sub-conditions correspond to the N input resources one-to-one, and the sub-condition corresponding to the first resource is determined from the N sub-conditions.

Among them, the manner of the cloud platform decomposing constraint conditions can refer to the description of the server decomposing constraint conditions, which is not specifically described here.

In an implementation situation, after the cloud platform receives the third message, the cloud platform can parse the third message to obtain the identification of the N input resources and the identification of the constraint condition, and then based on the identification of the N input resources and the identification of the constraint condition , Obtain the constraints and N input resources. In another implementation situation, after the cloud platform receives the third message, the cloud platform can parse the third message to directly obtain N input resources and constraint conditions.

S811. The cloud platform determines a trigger condition based on the sub-condition corresponding to the first resource.

Wherein, the cloud platform determines the implementation manner of the trigger condition based on the sub-condition corresponding to the first resource. You can refer to the server to determine the implementation manner of the trigger condition based on the sub-condition corresponding to the first resource.

S813. The cloud platform sends a first request to the first device. The first request instructs the first device to send a notification message to the server when the attribute information of the first resource meets the trigger condition. The notification message includes or indicates the attribute of the first resource. Information; the first device receives the first request sent by the cloud platform.

S815: The first device sends a second message to the cloud platform, where the second message includes or indicates that the first device completes the setting of the trigger condition; the cloud platform receives the second message sent by the first device.

It can be understood that after the first device sends the second message to the cloud platform, it indicates that the first device has set the trigger condition. In this way, the first device determines that the first device has changed the attribute information of the first resource. Whether the attribute information of the resource meets the trigger condition.

S817. The cloud platform sends a second message to the server; the server receives the second message sent by the cloud platform.

S819. The first device monitors the attribute information of the first resource, and determines that the attribute information of the first resource satisfies the trigger condition.

For the description of S819, please refer to the related description in S517.

S821. The first device sends a notification message to the server; the server receives the notification message sent by the first device.

S823: The server executes the rule behavior.

In the embodiment of the present application, when the first device, the server, and the cloud platform interact, the cloud platform obtains the trigger condition corresponding to the first resource by receiving the message sent by the server, so that the cloud platform sends the first device including or instructs to send to the server Instruct the first device to send the first request of the notification message to the server when the attribute information of the first resource satisfies the trigger condition, thereby eliminating the need for the server to determine the trigger condition of the first resource and execute the sending process of the first request, reducing The computing resources of the server.

The following takes the first device as the inputDevice and the server as the ruleDevice as an example to illustrate the method for transmitting messages in the Internet of Things in the embodiment of the present application:

Fig. 8b is a schematic diagram of the implementation process of a method for message transmission in the Internet of Things according to another embodiment of this application. As shown in Fig. 8b, the method includes:

S841, ruleDevice creates a new Rule resource; the Rule resource is a rule for executing resource device automation. The resource includes ruleInput resources, ruleExpression resources, etc. The ruleDevice resource device subscribes to each inputDevice related resources respectively; these resources are the resources specified by the link in the ruleInput.

S843, ruleDevice decomposes the rule expression ruleExpression; according to the resource specified in ruleInput, decomposes the ruleExpression into different subsets. For example, ruleExpression "A>17 and B=false or C<16", it is decomposed into 3 sub-sets: A>17; B=false; C<16. The sub-collection can be divided according to resources, so that each sub-collection only represents one resource. When ruleDevice decomposes ruleExpression, it can be decomposed according to the number of inputResource. For example, the number of InputResources is N, ruleDevice is decomposed into N subsets, and N is a positive integer greater than or equal to 1.

The sub-collection can be divided according to logical operators, so that each sub-collection can contain only one relational operator. The relational operator can include (">", ">=", "=", "<", "< =" and "!=" etc.). In this way, after the attribute value of the subscribed resource changes, it satisfies the relational expression corresponding to the resource before sending the subscription notification message.

S845 and ruleDevice subscribe the input parameters on the inputDevice to each inputDevice respectively.

Among them, S845 can be understood as ruleDevice subscribing to related resources to each inputDevice respectively. Input parameters can include resources on inputDevice.

S847. After the inputDevice is successfully subscribed, a message indicating that the subscription is successful may be sent to the ruleDevice.

Among them, in the implementation process, the server can first perform the step of decomposing the ruleExpression expression, and then the step of subscribing to the inputDevice; or the server can first perform the step of subscribing to the inputDevice, and after the subscription is successful, then perform the step of decomposing the ruleExpression expression ; Or the steps of the server decomposing ruleExpression expressions, and the steps of subscribing to inputDevice can be executed synchronously.

Wherein, the regular expression may be the constraint condition in the foregoing embodiment, and the subset may be the sub-condition in the foregoing embodiment.

S849. The ruleDevice sends a request for the subscription notification condition of the subscribed resource to each corresponding inputDevice according to each of the decomposed sub-sets. The subscription notification condition may be the trigger condition in the foregoing embodiment. Among them, the content of the request to subscribe to the notification condition may be as follows:

To: The address of the resource to which A belongs

CN:{

Oic.r.value.conditional(

Valuecondition: ">17";)

}

Among them, the value in valueCondition is the attribute value of the resource. In addition, each resource is bound to an oic.r.value.conditional resource, which is used to limit the conditions for the target resource to send subscription notification messages.

The condition of subscribing to the notification message or the condition of subscribing to the notification may be the triggering condition in the embodiment of the present application.

S851. After the inputDevice has set the notification condition, it can send a message that the set notification condition is complete to the ruleDevice.

S853. When the subscribed resource information changes, the inputDevice first judges the content of the oic.r.value.conditional resource; if the value of the subscribed resource changes, the condition set in oic.r.value.conditional (ie valueCondition If the value of the subscription resource does not meet the condition set in oic.r.value.conditional after the value of the subscription resource changes, the subscription notification message is not sent. Wherein, the resource information here may be the attribute information of the first resource in the embodiment of the present application.

S855. The inputDevice triggers the subscription notification message, and sends the subscription notification message to the server, and the subscription notification message carries or indicates the value of the changed resource.

The subscription notification message may be the notification message in the example of this application.

S857. After receiving the above subscription notification message, the ruleDevice calculates the ruleExpression and determines the ruleExpression. When the determination is true, execute S859. The subscription notification message may be the notification message in the embodiment of the present application.

S859, ruleDevice rule action ruleAction.

Fig. 8c is a schematic diagram of the implementation process of a method for message transmission in the Internet of Things provided by still another embodiment of the application. As shown in Fig. 8c, the method includes:

S861, ruleDevice creates a new Rule resource; the Rule resource is a rule for performing device automation; the resource contains ruleInput resources, ruleExpression resources, etc.; ruleDevice devices subscribe to each inputDevice for related resources; these resources are in ruleInput Contains the resource specified by the link.

S863 and ruleDevice subscribe the input parameters on the inputDevice to each inputDevice respectively.

Among them, S863 can be understood as ruleDevice subscribing to related resources to each inputDevice respectively. Input parameters can include resources on inputDevice.

S865. After the inputDevice is subscribed successfully, a message indicating that the subscription is successful can be sent to the ruleDevice.

S867. The ruleDevice sends the ruleInput resource and the ruleExpression resource of the newly created rule to the cloud platform Cloud to request the cloud platform to send the notification message sending condition of the subscription resource according to the above information.

Among them, in the implementation process, the server can first perform the step of subscribing to inputDevice, and then perform the step of sending ruleInput resources and ruleExpression resources; or, the server can first perform the ruleInput resource and ruleExpression resources, and then perform the step of subscribing to inputDevice; or, the server subscribes The steps of inputDevice and the steps of sending ruleInput resources and ruleExpression resources can be executed synchronously.

S869. The cloud platform decomposes the ruleExpression; according to the resource specified in the ruleInput, decomposes the ruleExpression into different sub-collections (or expressions). Among them, the cloud platform can set the subscription notification conditions of the corresponding resources to different inputDevices according to the decomposed expression.

For example, ruleExpression "A>17 and B=false or C<16", it is decomposed into 3 sub-sets: A>17; B=false; C<16. The sub-collection can be divided according to resources, so that each sub-collection only represents one resource. The sub-collection can be divided according to logical operators, so that each sub-collection contains only one relational operator.

S871. The cloud platform sends a request for the subscription notification condition of the subscribed resource to each corresponding inputDevice according to the decomposed sub-sets. The requested content may be the same as the content sent by the ruleDevice to the inputDevice in the foregoing embodiment.

The content of the request for subscribing to notification conditions can be as follows:

To: The address of the resource to which A belongs

CN:{

Oic.r.value.conditional(

Valuecondition: ">17";)

}

In addition, each target resource is bound to an oic.r.value.conditional resource, which is used to limit the conditions for the target resource to send subscription notification messages.

In S873, the inputDevice may send a message to the cloud platform that the setting of the notification condition is completed after the setting of the notification condition is completed.

S875. The cloud platform may send a message that the set notification condition is completed to the ruleDevice. The subscription notification condition of the resource may be the trigger condition in the embodiment of this application.

After all the request messages are completed and the response message is received, the cloud platform notifies the ruleDevice that the task of setting the notification condition of the subscription resource has been completed.

S877. When the attribute information of the subscribed first resource changes, the inputDevice first judges the content of the oic.r.value.conditional resource; if the value of the subscribed resource changes and meets the set in oic.r.value.conditional Condition (that is, the condition of valueCondition), execute S879. If the value of the subscription resource does not meet the conditions set in oic.r.value.conditional after the change, the subscription notification message will not be sent.

S879. Trigger the subscription notification message, and send the subscription notification message to the server, and the subscription notification message carries or indicates the value of the changed resource.

S881. After receiving the above subscription notification message, ruleDevice calculates the ruleExpression and makes a determination of the ruleExpression. When the determination is true, execute S883. The subscription notification message may be the notification message in the embodiment of the present application.

S883, ruleDevice rule action ruleAction.

Based on the foregoing embodiment, an embodiment of the present application provides a message transmission device in the Internet of Things. The device includes each unit included and each module included in each unit, which can be passed through the server/first device/cloud platform The processor can be implemented; of course, it can also be implemented by a logic circuit; in the implementation process, the processor can be a central processing unit (CPU), a microprocessor (MPU), a digital signal processor (DSP) or a field programmable gate Array (FPGA), etc.

FIG. 9 is a schematic diagram of the composition structure of a message transmission device in the Internet of Things provided by an embodiment of the application. As shown in FIG. 9, the transmission device 9 may be set in a server and includes:

The request sending unit 91 is configured to send a first request to the first device. The first request instructs the first device to send a notification message to the server when the attribute information of the first resource meets the trigger condition. The notification message includes or indicates the first request. The attribute information of the resource;

The notification message receiving unit 92 is configured to receive a notification message sent by the first device.

In some embodiments, the transmission device 9 further includes: a resource subscription unit 93, configured to send a request for subscribing to the first resource to the first device; receive a first message sent by the first device, the first message including or indicating the first resource The subscription is successful.

In some embodiments, the transmission device 9 further includes: a second message receiving unit 94, configured to receive a second message sent by the first device, the second message includes or indicates that the first device completes the setting of the trigger condition.

In some embodiments, the transmission device 9 further includes: a resource creation unit 95 for creating a rule resource; the rule resource includes constraint conditions and N input resources corresponding to the constraint conditions; N is a positive integer greater than or equal to 1, The N input resources include the first resource.

In some embodiments, the transmission device 9 further includes: a trigger condition determining unit 96, configured to determine the constraint condition as a trigger condition if N is equal to 1.

In some embodiments, the transmission device 9 further includes: a rule execution unit 97, configured to determine that the attribute information of the first resource satisfies the constraint condition, and execute the rule behavior.

In some embodiments, the trigger condition determining unit 96 is further configured to decompose the constraint condition into N sub-conditions if N is greater than 1, and the N sub-conditions correspond to the N input resources one-to-one;

Determine the sub-condition corresponding to the first resource from the N sub-conditions;

Determine the trigger condition based on the sub-condition corresponding to the first resource.

In some embodiments, in some embodiments, the trigger condition determining unit 96 is further configured to determine the sub-condition corresponding to the first resource as the trigger condition.

In some embodiments, the transmission device 9 further includes: a rule execution unit 97, configured to determine that the attribute information of the first resource satisfies the sub-conditions corresponding to the first resource; and obtain N input resources except for the first resource. The attribute information of 1 resource; if the attribute information of each resource in N-1 resources satisfies the sub-conditions corresponding to each resource, the rule behavior is executed.

In some embodiments, the rule resource further includes: M behavior resources corresponding to the constraint condition, where M is a positive integer greater than or equal to 1; the rule execution unit 97 is also used to modify the attribute information of the M behavior resources; M is A positive integer greater than or equal to 1.

In some embodiments, the attribute information of the first resource satisfies the trigger condition, including one of the following:

FIG. 10 is a schematic diagram of the composition structure of another message transmission device in the Internet of Things provided by an embodiment of the application. As shown in FIG. 10, the transmission device 10 may be set in a server, and the transmission device 10 includes:

The second message receiving unit 101 is configured to receive a second message sent by the cloud platform. The second message includes or instructs the first device to complete the setting of the trigger condition, and the trigger condition is used when the attribute information of the first resource of the first device satisfies In the case of a trigger condition, trigger the first device to send a notification message to the server, and the notification message includes or indicates the attribute information of the first resource;

The notification message receiving unit 102 is configured to receive a notification message sent by the first device.

In some embodiments, the transmission apparatus 10 further includes: a resource subscription unit 103, configured to send a request for subscribing to the first resource to the first device; receive a first message sent by the first device, the first message including or indicating the first resource The subscription is successful.

In some embodiments, the transmission device 10 further includes: a resource creation unit 104, configured to create a rule resource, the rule resource includes a constraint condition, and N input resources corresponding to the constraint condition; N is a positive integer greater than or equal to 1, The N input resources include the first resource.

In some embodiments, the transmission device 10 further includes: a third message sending unit 105, configured to send a third message to the cloud platform, the third message including or indicating: constraint conditions and N input resources.

In some embodiments, the transmission device 10 further includes: a rule execution unit 106, configured to determine that the attribute information of the first resource satisfies the constraint condition if N is equal to 1, and execute the rule behavior.

In some embodiments, the rule execution unit 106 is further configured to determine that the attribute information of the first resource satisfies the sub-conditions corresponding to the first resource if N is greater than 1, and obtain N- The attribute information of 1 resource; if the attribute information of each resource in N-1 resources satisfies the sub-conditions corresponding to each resource, the rule behavior is executed.

In some embodiments, the rule resource further includes: M behavior resources corresponding to the constraint condition, where M is a positive integer greater than or equal to 1; the rule execution unit 106 is also used to modify the attribute information of the M behavior resources.

FIG. 11 is a schematic diagram of the composition structure of another message transmission device in the Internet of Things provided by an embodiment of the application. As shown in FIG. 11, the transmission device 11 may be set in a cloud platform, and the transmission device 11 includes:

The request sending unit 111 is configured to send a first request to the first device. The first request instructs the first device to send a notification message to the server when the attribute information of the first resource meets the trigger condition. The notification message includes or indicates the first request. The attribute information of the resource.

In some embodiments, the transmission device 11 further includes: a second message forwarding unit 112, configured to receive a second message sent by the first device, the second message including or indicating that the first device has set the trigger condition; sending to the server The second message.

In some embodiments, the transmission device 11 further includes: a third message receiving unit 113, configured to receive a third message sent by the server, the third message including or indicating: a constraint condition and N input resources corresponding to the constraint condition; N Is a positive integer greater than or equal to 1, and the N input resources include the first resource.

In some embodiments, the transmission device 11 further includes: a trigger condition determining unit 114, configured to determine the constraint condition as a trigger condition if N is equal to 1.

In some embodiments, the trigger condition determining unit 114 is further configured to decompose the constraint condition into N sub-conditions if N is greater than 1, and N is a positive integer greater than or equal to 1, and the N sub-conditions correspond to N input resources one-to-one. ; Determine the sub-condition corresponding to the first resource from the N sub-conditions; determine the trigger condition based on the sub-condition corresponding to the first resource.

In some embodiments, the trigger condition determining unit 114 is further configured to determine the sub-condition corresponding to the first resource as the trigger condition.

FIG. 12 is a schematic diagram of the composition structure of a message transmission device in the Internet of Things according to another embodiment of the application. As shown in FIG. 12, the transmission device 12 may be set in a first device, and the transmission device 12 includes:

The monitoring unit 121 is configured to monitor the attribute information of the first resource.

The notification message sending unit 122 is configured to send a notification message to the server if the attribute information of the first resource meets the trigger condition; the notification message includes or indicates the attribute information of the first resource.

In some embodiments, the transmission device 12 further includes: a condition setting unit 123, configured to receive a first request sent by the server, the first request instructing the first device to send the The server sends a notification message; and a second message is sent to the server. The second message includes or indicates that the first device completes the setting of the trigger condition.

In some embodiments, the condition setting unit 123 is further configured to receive a first request sent by the cloud platform, the first request instructing the first device to send a notification message to the server when the attribute information of the first resource meets the trigger condition ; Send a second message to the cloud platform, the second message includes or instructs the first device to complete the trigger condition setting.

In some embodiments, the transmission device 12 further includes: a resource subscription unit 124, configured to receive a request for subscribing to the first resource sent by the server; and send a first message to the server, the first message including or indicating that the first resource subscription is successful.

The description of the above device embodiment is similar to the description of the above method embodiment, and has similar beneficial effects as the method embodiment. For technical details not disclosed in the device embodiments of the present application, please refer to the description of the method embodiments of the present application for understanding.

It should be noted that, in the embodiments of this application, if the above-mentioned message transmission method in the Internet of Things is implemented in the form of a software function module and sold or used as an independent product, it can also be stored in a computer readable storage medium. middle. Based on this understanding, the technical solutions of the embodiments of the present application can be embodied in the form of software products in essence or the parts that contribute to related technologies. The computer software products are stored in a storage medium and include several instructions to enable The server/first device/cloud platform executes all or part of the method in each embodiment of the present application. The aforementioned storage media include: U disk, mobile hard disk, read only memory (Read Only Memory, ROM), magnetic disk or optical disk and other media that can store program codes. In this way, the embodiments of the present application are not limited to any specific combination of hardware and software.

FIG. 13 is a schematic diagram of a hardware entity of a server provided by an embodiment of the application. As shown in 13, the hardware entity of the server 13 includes a processor 131 and a memory 132, where the memory 132 stores data that can run on the processor 131 When the processor 131 executes the program, the processor 131 implements the steps in the method executed by the server in any one of the embodiments of FIGS. 3 to 5, 7 and 8a to 8c.

14 is a schematic diagram of the hardware entity of a cloud platform provided by an embodiment of the application. As shown in FIG. 14, the hardware entity of the first device 14 includes a processor 141 and a memory 142. The computer program running on 141, when the processor 141 executes the program, implements the steps in the method executed by the cloud platform of the corresponding embodiment in FIG. 7 or FIGS. 8a to 8c.

15 is a schematic diagram of a hardware entity of a first device provided by an embodiment of the application. As shown in FIG. 15, the hardware entity of the first device 15 includes a processor 151 and a memory 152. The computer program running on the processor 151, when the processor 151 executes the program, implements the steps in the method executed by the first device in any one of the embodiments of FIGS. 4, 5, 7 and 8a to 8c.

The embodiment of the present application provides a computer storage medium, and the computer storage medium stores one or more programs, and the one or more programs can be executed by one or more processors to implement the steps of the method executed by the server in the foregoing method.

The embodiment of the present application provides a computer storage medium, and the computer storage medium stores one or more programs, and the one or more programs can be executed by one or more processors to implement the steps of the method executed by the cloud platform in the foregoing method.

The embodiment of the present application provides a computer storage medium. The computer storage medium stores one or more programs, and the one or more programs can be executed by one or more processors to implement the steps of the method executed by the first device in the above method. .

FIG. 16 is a schematic structural diagram of a chip provided by an embodiment of the present application. The chip 16 shown in FIG. 16 includes a processor 161, and the processor 161 can call and run a computer program from the memory to implement the steps of the method executed by the server/cloud platform/first device in the embodiment of the present application.

Optionally, as shown in FIG. 16, the chip 16 may further include a memory 162. The processor 161 may call and run a computer program from the memory 162 to implement the steps of the method executed by the server/cloud platform/first device in the embodiment of the present application.

The memory 162 may be a separate device independent of the processor 161, or may be integrated in the processor 161.

Optionally, the chip 16 may further include an input interface 163. The processor 161 can control the input interface 163 to communicate with other devices or chips, and specifically, can obtain information or data sent by other devices or chips.

Optionally, the chip 16 may further include an output interface 164. The processor 161 can control the output interface 164 to communicate with other devices or chips, specifically, can output information or data to other devices or chips.

Optionally, the chip can be applied to the network device in the embodiment of the present application, and the chip can implement the corresponding process implemented by the network device in each method of the embodiment of the present application. For the sake of brevity, details are not described herein again.

Optionally, the chip can be applied to the server/cloud platform/first device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the server/cloud platform/first device in the various methods of the embodiments of the present application , For the sake of brevity, I won’t repeat it here.

It should be understood that the chip mentioned in the embodiment of the present application may also be referred to as a system-level chip, a system-on-chip, a system-on-chip, or a system-on-chip, etc.

The embodiments of the present application provide a computer program product. The computer program product includes a computer storage medium, and the computer storage medium stores computer program code. The computer program code includes instructions that can be executed by at least one processor. The steps of the method executed by the server/cloud platform/first device in the above method are implemented.

Optionally, the computer program product can be applied to the server/cloud platform/first device in the embodiments of the present application, and the computer program instructions cause the computer to execute each method in the embodiments of the present application by the server/cloud platform/first device. For the sake of brevity, the corresponding process implemented by the device will not be repeated here.

It should be pointed out here that the description of the above storage medium and server/first device/cloud platform embodiment is similar to the description of the above method embodiment, and has similar beneficial effects as the method embodiment. For technical details not disclosed in the embodiments of the storage medium and the server/first device/cloud platform of this application, please refer to the description of the method embodiments of this application for understanding.

It should be understood that the processor of the embodiment of the present application may be an integrated circuit chip with signal processing capability. In the implementation process, the steps of the foregoing method embodiments may be completed by hardware integrated logic circuits in the processor or instructions in the form of software. The above-mentioned processor may be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (ASIC), a ready-made programmable gate array (Field Programmable Gate Array, FPGA) or other Programming logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps, and logic block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like. The steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor. The software module can be located in a mature storage medium in the field, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

It can be understood that the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. Among them, the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), and electrically available Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. The volatile memory may be a random access memory (Random Access Memory, RAM), which is used as an external cache. By way of exemplary but not restrictive description, many forms of RAM are available, such as static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random access memory (Synchronous DRAM, SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (Double Data Rate SDRAM, DDR SDRAM), Enhanced Synchronous Dynamic Random Access Memory (Enhanced SDRAM, ESDRAM), Synchronous Link Dynamic Random Access Memory (Synchlink DRAM, SLDRAM) ) And Direct Rambus RAM (DR RAM). It should be noted that the memories of the systems and methods described herein are intended to include, but are not limited to, these and any other suitable types of memories.

It should be understood that the foregoing memory is exemplary but not restrictive. For example, the memory in the embodiment of the present application may also be static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM) and so on. That is to say, the memory in the embodiments of the present application is intended to include, but is not limited to, these and any other suitable types of memory.

It should be pointed out here that the description of the above storage medium, computer program, chip, and device embodiments is similar to the description of the above method embodiment, and has similar beneficial effects as the method embodiment. For technical details not disclosed in the storage medium and device embodiments of this application, please refer to the description of the method embodiments of this application for understanding.

It should be understood that “one embodiment” or “an embodiment” or “an embodiment of the application” or “the foregoing embodiment” mentioned throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in this In at least one embodiment of the application. Therefore, the appearances of "in one embodiment" or "in an embodiment" in various places throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner. It should be understood that in the various embodiments of the present application, the size of the sequence number of the above-mentioned processes does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic, and should not correspond to the embodiments of the present application. The implementation process constitutes any limitation. The serial numbers of the foregoing embodiments of the present application are for description only, and do not represent the superiority or inferiority of the embodiments.

Without special instructions, the server/first device/cloud platform executes any step in the embodiments of the present application, and the processor of the server/first device/cloud platform may execute the step. Unless otherwise specified, the embodiment of the present application does not limit the order in which the server/first device/cloud platform executes the following steps. In addition, the methods used to process data in different embodiments may be the same method or different methods. It should also be noted that any step in the embodiment of the present application can be independently executed by the server/first device/cloud platform, that is, when the server/first device/cloud platform executes any of the steps in the following embodiments, It does not depend on the execution of other steps.

In the several embodiments provided in this application, it should be understood that the disclosed server/first device/cloud platform and method may be implemented in other ways. The server/first device/cloud platform embodiments described above are merely illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods, such as multiple Units or components can be combined, or can be integrated into another system, or some features can be omitted or not implemented. In addition, the coupling, or direct coupling, or communication connection between the components shown or discussed may be through some interfaces, indirect coupling or communication connection between resource devices or units, and may be electrical, mechanical, or other Form.

The methods disclosed in the several method embodiments provided in this application can be combined arbitrarily without conflict to obtain new method embodiments.

The features disclosed in the several product embodiments provided in this application can be combined arbitrarily without conflict to obtain new product embodiments.

The features disclosed in the several methods or server/first device/cloud platform embodiments provided in this application can be combined arbitrarily without conflict to obtain a new method embodiment or server/first device/cloud platform Examples.

Those of ordinary skill in the art can understand that all or part of the steps in the above method embodiments can be implemented by a program instructing relevant hardware. The foregoing program can be stored in a computer readable storage medium. When the program is executed, the execution includes The steps of the foregoing method embodiment; and the foregoing storage medium includes: various media capable of storing program codes, such as a removable storage resource device, a read only memory (Read Only Memory, ROM), a magnetic disk or an optical disc.

Alternatively, if the aforementioned integrated unit of the present application is implemented in the form of a software function module and sold or used as an independent product, it may also be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the embodiments of the present application can be embodied in the form of software products in essence or the parts that contribute to related technologies. The computer software products are stored in a storage medium and include several instructions to enable The server/first device/cloud platform executes all or part of the methods described in the various embodiments of the present application. The aforementioned storage media include: removable storage resource devices, ROMs, magnetic disks, or optical disks and other media that can store program codes.

In the embodiments of the present application, descriptions of the same steps and the same content in different embodiments may be referred to each other. In the embodiment of the present application, the term “union” does not affect the sequence of steps. For example, the server/first device/cloud platform executes A and executes B. It may be that the server/first device/cloud platform executes A first. Then execute B, or the server/first device/cloud platform executes B first, and then executes A, or the server/first device/cloud platform executes A while executing B.

It should be understood that the inclusion of A in one message in this application means that there is A in one message. The indication of A in a message indicates that the identity of A is included in a message, so that A can be obtained based on the identity of A. It should be understood that when different resource devices execute the same step, the execution method may be the same.

It should be understood that although Figures 5 and 8a to 8c show a complete flow chart of the message transmission method in the Internet of Things, however, in the process of execution, the resource device may not perform some of the steps, as long as the resource device The steps performed make the program complete. It should be understood that in the signaling interactions in Figures 4, 5, 7, and 8a to 8c, the dotted line represents control plane signaling, and implementation represents user plane signaling.

The above are only the implementation manners of this application, but the protection scope of this application is not limited to this. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in this application. Covered in the scope of protection of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Industrial applicability

The embodiments of the application provide a method, device, server, device and cloud platform for message transmission in the Internet of Things. The message transmission scheme in the Internet of Things in this application is adopted, and the attribute information of the first device in the first resource satisfies the trigger Under conditions, the server can receive the notification message sent by the first device, so that the number of notification messages received by the server is small, and the computing resources of the server are low.

Claims

A method for transmitting messages in the Internet of Things, including:

The server sends a first request to the first device, the first request instructs the first device to send a notification message to the server when the attribute information of the first resource meets the trigger condition, and the notification message includes or indicates Attribute information of the first resource;

Receiving the notification message sent by the first device.
The method according to claim 1, wherein before the server sends the first request to the first device, the method further comprises:

Sending a request for subscribing to the first resource to the first device;

Receiving a first message sent by the first device, where the first message includes or indicates that the first resource subscription is successful.
The method according to claim 1 or 2, wherein after the server sends the first request to the first device, the method further comprises:

Receiving a second message sent by the first device, where the second message includes or instructs the first device to complete the setting of the trigger condition.
The method according to any one of claims 1 to 3, wherein before the server sends the first request to the first device, the method further comprises:

Create a rule resource; the rule resource includes a constraint condition and N input resources corresponding to the constraint condition; N is a positive integer greater than or equal to 1, and the N input resources include the first resource.
The method according to claim 4, wherein before the server sends the first request to the first device, the method further comprises:

If N is equal to 1, the constraint condition is determined as the trigger condition.
The method according to claim 5, wherein after the receiving the notification message sent by the first device, the method further comprises:

It is determined that the attribute information of the first resource satisfies the constraint condition, and the rule behavior is executed.
The method according to claim 4, wherein before the server sends the first request to the first device, the method further comprises:

If N is greater than 1, decompose the constraint condition into N sub-conditions; the N sub-conditions have a one-to-one correspondence with the N input resources;

Determine the sub-condition corresponding to the first resource from the N sub-conditions;

The trigger condition is determined based on the sub-condition corresponding to the first resource.
8. The method according to claim 7, wherein the determining the trigger condition based on the sub-condition corresponding to the first resource comprises: determining the sub-condition corresponding to the first resource as the trigger condition.
The method according to claim 8, wherein after the receiving the notification message sent by the first device, the method further comprises: determining that the attribute information of the first resource satisfies the sub-condition corresponding to the first resource;

Acquiring attribute information of N-1 resources other than the first resource among the N input resources;

If the attribute information of each resource in the N-1 resources satisfies the sub-conditions corresponding to each resource, the rule behavior is executed.
The method according to claim 6 or 9, wherein the rule resource further comprises: M behavior resources corresponding to the constraint condition, where M is a positive integer greater than or equal to 1, and the execution of the rule behavior includes:

Modify the attribute information of the M behavior resources.
The method according to any one of claims 1 to 10, wherein the attribute information of the first resource satisfies a trigger condition and includes one of the following:

The attribute information of the first resource is greater than a first threshold;

Within the first time period, the attribute information of the first resource is greater than the first threshold;

The attribute information of the first resource is less than a second threshold;

In the second time period, the attribute information of the first resource is less than the second threshold;

The attribute information of the first resource changes within the third time period, and the changed value is greater than the first value.
A method for transmitting messages in the Internet of Things, including:

The server receives a second message sent by the cloud platform, where the second message includes or instructs the first device to complete the setting of a trigger condition, and the trigger condition is used when the attribute information of the first resource of the first device satisfies the In the case of a trigger condition, trigger the first device to send a notification message to the server, where the notification message includes or indicates the attribute information of the first resource;

Receiving the notification message sent by the first device.
The method according to claim 12, wherein before the server receives the second message sent by the cloud platform, the method further comprises:

Sending a request for subscribing to the first resource to the first device;

Receiving a first message sent by the first device, where the first message includes or indicates that the first resource subscription is successful.
The method according to claim 12 or 13, wherein before the server receives the second message sent by the cloud platform, the method further comprises:

A rule resource is created. The rule resource includes a constraint condition and N input resources corresponding to the constraint condition; N is a positive integer greater than or equal to 1, and the N input resources include the first resource.
The method according to claim 14, wherein before the server receives the second message sent by the cloud platform, the method further comprises:

A third message is sent to the cloud platform, where the third message includes or indicates: the constraint condition and the N input resources.
The method according to claim 14 or 15, wherein after the receiving the notification message sent by the first device, the method further comprises:

If N is equal to 1, it is determined that the attribute information of the first resource satisfies the constraint condition, and the rule behavior is executed.
The method according to claim 14 or 15, wherein after the receiving the notification message sent by the first device, the method further comprises:

If N is greater than 1, it is determined that the attribute information of the first resource satisfies the sub-conditions corresponding to the first resource;

Acquiring attribute information of N-1 resources other than the first resource among the N input resources;

If the attribute information of each resource in the N-1 resources satisfies the sub-conditions corresponding to each resource, the rule behavior is executed.
The method according to claim 16 or 17, wherein the rule resource further comprises: M behavior resources corresponding to the constraint condition, where M is a positive integer greater than or equal to 1, and the execution of the rule behavior includes:

Modify the attribute information of the M behavior resources.
The method according to any one of claims 12 to 18, wherein the attribute information of the first resource satisfies the trigger condition and includes one of the following:

The attribute information of the first resource is greater than a first threshold;

Within the first time period, the attribute information of the first resource is greater than the first threshold;

The attribute information of the first resource is less than a second threshold;

In the second time period, the attribute information of the first resource is less than the second threshold;

The attribute information of the first resource changes within the third time period, and the changed value is greater than the first value.
A method for transmitting messages in the Internet of Things, including:

The cloud platform sends a first request to the first device, the first request instructing the first device to send a notification message to the server when the attribute information of the first resource meets the trigger condition, and the notification message includes or Indicates the attribute information of the first resource.
The method according to claim 20, wherein after the cloud platform sends the first request to the first device, the method further comprises:

Receiving a second message sent by the first device, where the second message includes or instructs the first device to complete the setting of the trigger condition;

Sending the second message to the server.
The method according to claim 20 or 21, wherein before the cloud platform sends the first request to the first device, the method further comprises:

Receive a third message sent by the server, where the third message includes or indicates: a constraint condition and N input resources corresponding to the constraint condition; N is a positive integer greater than or equal to 1, and the N input resources Including the first resource.
The method according to claim 22, wherein before the cloud platform sends the first request to the first device, the method further comprises:

If N is equal to 1, the constraint condition is determined as the trigger condition.
The method according to claim 22, wherein before the cloud platform sends the first request to the first device, the method further comprises:

If N is greater than 1, decompose the constraint condition into N sub-conditions; the N sub-conditions have a one-to-one correspondence with the N input resources;

Determine the sub-condition corresponding to the first resource from the N sub-conditions;

The trigger condition is determined based on the sub-condition corresponding to the first resource.
The method according to claim 24, wherein the determining the trigger condition based on the sub-condition corresponding to the first resource comprises:

The sub-condition corresponding to the first resource is determined as the trigger condition.
The method according to any one of claims 20 to 25, wherein the attribute information of the first resource that satisfies a trigger condition includes one of the following:

The attribute information of the first resource is greater than a first threshold;

Within the first time period, the attribute information of the first resource is greater than the first threshold;

The attribute information of the first resource is less than a second threshold;

In the second time period, the attribute information of the first resource is less than the second threshold;

The attribute information of the first resource changes within the third time period, and the changed value is greater than the first value.
A method for transmitting messages in the Internet of Things, including:

The first device monitors the attribute information of the first resource;

If the attribute information of the first resource satisfies the trigger condition, a notification message is sent to the server; the notification message includes or indicates the attribute information of the first resource.
The method according to claim 27, wherein before the first device monitors the attribute information of the first resource, the method further comprises:

Receiving a first request sent by the server, where the first request instructs the first device to send the notification message to the server when the attribute information of the first resource satisfies the trigger condition;

Sending a second message to the server, where the second message includes or instructs the first device to complete the setting of the trigger condition.
The method according to claim 27, wherein before the first device monitors the attribute information of the first resource, the method further comprises:

Receiving a first request sent by a cloud platform, the first request instructing the first device to send the notification message to the server when the attribute information of the first resource satisfies the trigger condition;

Send a second message to the cloud platform, where the second message includes or instructs the first device to complete the setting of the trigger condition.
The method according to any one of claims 27 to 29, wherein before the first device monitors the attribute information of the first resource, the method comprises:

Receiving a request for subscribing to the first resource sent by the server;

Send a first message to the server, where the first message includes or indicates that the first resource subscription is successful.
The method according to any one of claims 27 to 30, wherein the attribute information of the first resource satisfies the trigger condition and includes one of the following:

The attribute information of the first resource is greater than a first threshold;

Within the first time period, the attribute information of the first resource is greater than the first threshold;

The attribute information of the first resource is less than a second threshold;

In the second time period, the attribute information of the first resource is less than the second threshold;

The attribute information of the first resource changes within the third time period, and the changed value is greater than the first value.
A message transmission device in the Internet of Things, including:

The request sending unit is configured to send a first request to a first device, where the first request instructs the first device to send a notification message to the server when the attribute information of the first resource meets a trigger condition, and The notification message includes or indicates the attribute information of the first resource;

The notification message receiving unit is configured to receive the notification message sent by the first device.
A message transmission device in the Internet of Things, including:

The second message receiving unit is configured to receive a second message sent by the cloud platform, the second message including or instructing the first device to complete the setting of the trigger condition, and the trigger condition is used in the first device of the first device. When the attribute information of the resource satisfies the trigger condition, trigger the first device to send a notification message to the server, where the notification message includes or indicates the attribute information of the first resource;

The notification message receiving unit is configured to receive the notification message sent by the first device.
A message transmission device in the Internet of Things, including:

The request sending unit is configured to send a first request to a first device, where the first request instructs the first device to send a notification message to the server when the attribute information of the first resource meets a trigger condition, and The notification message includes or indicates the attribute information of the first resource.
A message transmission device in the Internet of Things, including:

The monitoring unit is used to monitor the attribute information of the first resource;

The notification message sending unit is configured to send a notification message to the server if the attribute information of the first resource satisfies the trigger condition; the notification message includes or indicates the attribute information of the first resource.
A server, including: memory and processor,

The memory stores a computer program that can run on the processor,

When the processor executes the program, the steps in the method described in any one of claims 1 to 11 are implemented, or, when the processor executes the program, the steps in the method described in any one of claims 12 to 19 are implemented. step.
A cloud platform, including: memory and processor,

The memory stores a computer program that can run on the processor,

When the processor executes the program, the steps in the method according to any one of claims 20 to 26 are implemented.
A first device, including: a memory and a processor,

The memory stores a computer program that can run on the processor,

When the processor executes the program, the steps in the method according to any one of claims 27 to 31 are implemented.
A computer storage medium that stores one or more programs, and the one or more programs can be executed by one or more processors to implement the method described in any one of claims 1 to 11 A step of;

Alternatively, the one or more programs may be executed by one or more processors to implement the steps in the method according to any one of claims 12 to 19;

Alternatively, the one or more programs may be executed by one or more processors to implement the steps in the method according to any one of claims 20 to 26;

Alternatively, the one or more programs may be executed by one or more processors to implement the steps in the method of any one of claims 27 to 31.
A chip comprising: a processor, configured to call and run a computer program from a memory, so that a device installed with the chip executes the steps in the method according to any one of claims 1 to 11;

Or, used to call and run a computer program from the memory, so that the device installed with the chip executes the steps in the method according to any one of claims 12 to 19;

Or, used to call and run a computer program from the memory, so that the device installed with the chip executes the steps in the method according to any one of claims 20 to 26;

Or, it is used to call and run a computer program from the memory, so that the device installed with the chip executes the steps in the method according to any one of claims 27 to 31.
A computer program product includes a computer storage medium, the computer storage medium stores computer program code, and the computer program code includes instructions that can be executed by at least one processor. A processor implements the steps in the method of any one of claims 1 to 11 when executed;

Or, when the instructions are executed by the at least one processor, the steps in the method according to any one of claims 12 to 19 are implemented;

Or, when the instructions are executed by the at least one processor, the steps in the method according to any one of claims 20 to 26 are implemented;

Or, when the instructions are executed by the at least one processor, the steps in the method according to any one of claims 27 to 31 are implemented.