WO2024113583A1

WO2024113583A1 - Method for searching for smart device, and electronic apparatus and conversion device

Info

Publication number: WO2024113583A1
Application number: PCT/CN2023/085939
Authority: WO
Inventors: 刘健
Original assignee: 海尔优家智能科技（北京）有限公司; 青岛海尔科技有限公司; 海尔智家股份有限公司
Priority date: 2022-11-30
Filing date: 2023-04-03
Publication date: 2024-06-06
Also published as: CN115987939A

Abstract

The present application relates to the technical field of smart homes. Disclosed are a method for searching for a smart device, and a storage medium, an electronic apparatus and a conversion device. The method for searching for a smart device comprises: monitoring a UDP port; obtaining device information of one or more smart devices according to a detected message; determining an mDNS service of the smart device(s) according to the device information; and multicasting the mDNS service of the smart device for use by a terminal device for querying.

Description

Method, electronic device and conversion device for searching smart devices

This application is based on the Chinese patent application with application number 202211529938.3 and application date November 30, 2022, and claims the priority of the Chinese patent application. The entire content of the Chinese patent application is hereby introduced into this application as a reference.

Technical Field

The present application relates to the field of smart homes, and in particular, to a method, storage medium, electronic device and conversion device for searching for smart devices.

Background technique

With the development of Internet of Things technology, more and more smart devices are entering family life. Users often need to search and control these smart devices through mobile phones and other terminal devices. The method currently widely used to search for smart devices is based on UDP (User Datagram Protocol) broadcast. Under the UDP protocol, smart devices and terminal devices define corresponding sending ports and receiving ports respectively. After receiving requests on fixed ports, smart devices report the information of each device to the terminal device, so that the terminal device can scan all smart devices in the local area network. The search process is easily interfered by the communication of other devices, and the data security and reliability are not high.

The related technology has the following problems:

The search process requires that the data formats sent and received by the terminal device and the smart device must be completely consistent. However, the UDP data format is private, and the UDP data formats supported by different manufacturers or different platforms are often different. As a result, in the cross-manufacturer or cross-platform smart device search scenario, the success rate of the terminal device searching for smart devices is low.

Summary of the invention

In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key/critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

The embodiments of the present disclosure provide a method, storage medium, electronic device, and conversion device for searching smart devices, so as to improve the success rate of smart device search in a cross-vendor or cross-platform smart device search scenario.

In some embodiments, the method includes: monitoring a UDP port; obtaining device information of one or more smart devices based on the monitored messages; determining the mDNS service of the smart device based on the device information; and multicasting the mDNS service of the smart device for terminal devices to query.

In some embodiments, the storage medium includes a stored program, wherein the program executes the above method when it is executed.

In some embodiments, the electronic device includes a memory and a processor, wherein the memory stores a computer program, and the processor is configured to execute the above method through the computer program.

In some embodiments, the conversion device includes: a conversion device body; and the above-mentioned electronic device is installed in the conversion device body.

The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

FIG1 is a schematic diagram of a hardware environment of a method for searching for smart devices provided by an embodiment of the present disclosure;

FIG2 is a schematic diagram of a method for searching for smart devices provided by an embodiment of the present disclosure;

FIG3 is a schematic diagram of another method for searching for smart devices provided by an embodiment of the present disclosure;

FIG4 is a schematic diagram of another method for searching for smart devices provided by an embodiment of the present disclosure;

FIG5 is a schematic diagram of another method for searching for smart devices provided by an embodiment of the present disclosure;

FIG6 is a schematic diagram of an apparatus for searching for smart devices provided by an embodiment of the present disclosure;

FIG. 7 is a schematic diagram of a conversion device provided in an embodiment of the present disclosure.

Detailed ways

In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of this application.

It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover Non-exclusive inclusion, for example, a process, method, system, product, or apparatus that includes a series of steps or elements is not necessarily limited to those steps or elements explicitly listed, but may include other steps or elements not explicitly listed or inherent to such process, method, product, or apparatus.

With the development of Internet of Things technology, more and more smart devices are entering family life. Users can control the operation of smart devices through mobile phones, personal computers and other terminal devices, which is largely free from the limitation of space. Before entering the actual control process, users often need to search for these smart devices through mobile phones, personal computers and other terminal devices.

Currently, the method widely used to search for smart devices is based on UDP (User Datagram Protocol) broadcast. Under the UDP protocol, smart devices and terminal devices define corresponding sending ports and receiving ports respectively. After receiving the request at the fixed port, the smart device reports the information of each device to the terminal device, so that the terminal device can scan all smart devices in the local area network. The search process is easily interfered by the communication of other devices, and the data security and reliability are not high.

In order to improve data security and reliability, a method for searching smart devices is disclosed in the related technology, including: step 1, the smart device listens to the UDP fixed IP address and communication port; step 2, the terminal device sends a device search instruction to the fixed UDP address and UDP communication port; step 3, when the smart device receives the device search instruction sent by the terminal device using UDP unicast, it uses the public key to perform tea decryption, and then extracts the IP address and UDP communication port of the terminal device, and replies with a UDP unicast data packet to the terminal device; step 4, when the terminal device receives the UDP unicast data packet replied by the smart device, it extracts the information of the smart device from the UDP unicast data packet and starts operating communication with the smart device.

The relevant technology has improved the data security and reliability of the smart device search process to a certain extent, but the search process requires that the data formats sent and received by the terminal device and the smart device must be completely consistent. The UDP data format is private, and the UDP data formats supported by different manufacturers or different platforms are often different. Therefore, when the smart device and the terminal device support different UDP data formats, the terminal device cannot search for the smart device. As a result, in the cross-manufacturer or cross-platform smart device search scenario, the success rate of the terminal device searching for smart devices is low.

In order to improve the success rate of terminal devices searching for smart devices in cross-vendor or cross-platform smart device search scenarios, the present application provides a method, storage medium, electronic device and conversion device for searching smart devices.

Fig. 1 is a schematic diagram of a hardware environment of a method for searching smart devices provided by an embodiment of the present disclosure. As shown in Fig. 1, the hardware environment includes a smart device 10, a conversion device 20 and a terminal device 30. The smart device 10 does not only refer to a single device, but may also be multiple devices.

The smart device 10 and the conversion device 20 communicate with each other via the UDP protocol and support the same UDP data format. The conversion device 20 and the terminal device 30 communicate with each other based on the mDNS (multicast DNS) protocol.

The terminal device is a user terminal, which can be a mobile phone, personal computer or other device that can input control information. The user controls the smart device and conversion device through the terminal device. The smart device is a household appliance that communicates with the terminal device to transmit data or execute control instructions issued by the terminal device, including but not limited to smart air conditioners, smart refrigerators, smart sweeping robots, smart cooking equipment, etc.

The conversion device is also a household appliance that communicates with the terminal device to transmit data or execute control instructions sent by the terminal device, such as a smart air conditioner, a smart refrigerator, a smart sweeping robot, a smart cooking device, etc. In this case, the difference between the conversion device and the above-mentioned smart device is mainly that it can communicate based on the UDP and mDNS protocols. In other embodiments, the conversion device can also be a separately set data processing device without having the actual household appliance function.

Specifically, the conversion device includes at least two functional modules: a decoding module and a data packet conversion module. The decoding module can decode the received UDP broadcast message to obtain the device information of the smart device. The data packet conversion module can convert the decoded device information into an mDNS service to achieve format conversion.

Optionally, the conversion device also includes a management module that can manage the generated mDNS service. Specifically, the management module manages the mDNS service through the mDNS service list. When a new smart device is online, the mDNS service corresponding to the new smart device is added to the mDNS service list. When a smart device in the mDNS service list is offline, the mDNS service corresponding to the offline smart device is deleted from the mDNS service list.

As shown in FIG. 2 , an embodiment of the present disclosure provides a method for searching for smart devices, including:

S201, the conversion device listens to the UDP port.

S202: The conversion device obtains device information of one or more smart devices according to the monitored message.

The conversion device decodes the monitored UDP broadcast message according to the data format specified by the manufacturer, thereby obtaining the device information of the smart device.

S203: The conversion device determines the mDNS service of the smart device according to the device information.

S204, the conversion device multicasts the mDNS service of the smart device for query by the terminal device.

The mDNS service of the multicast smart device here is to convert the device to multicast the mDNS service to a specific mDNS port. Optionally, the specific mDNS port is port 5353 in the local area network.

The method for searching smart devices provided by the embodiment of the present disclosure is used to monitor the UDP port to obtain information that supports the UDP data format, thereby determining the device information of the smart device that supports the UDP format. The mDNS service corresponding to the smart device is determined based on the device information, and the mDNS service of the smart device is multicast to the mDNS port. In this way, when searching for a smart device, the terminal device can directly obtain the device information of the smart device through the mDNS service of the smart device, thereby realizing the search and discovery of the smart device. mDNS is a standard protocol, and the data transmission and reception process is not Restricted by the manufacturer or platform. Therefore, terminal devices belonging to different manufacturers or different platforms can receive the mDNS service that stores the device information of the smart device sent by the conversion device, thereby realizing the search and discovery of the smart device and the conversion device by the terminal device. It can be seen that in the cross-manufacturer or cross-platform smart device search scenario, the method for searching smart devices provided by the embodiment of the present disclosure effectively improves the success rate of the search.

Optionally, the device information includes a MAC (Media Access Control) address of the device. A MAC address corresponds to a smart device one-to-one, so a unique smart device can be determined based on the MAC address, thereby realizing search and discovery of the smart device.

Optionally, the device information also includes information such as device product number, device software version, etc. In this way, the device information can represent the actual situation of the smart device in more detail.

As shown in FIG3 , the embodiment of the present disclosure provides another method for searching for smart devices, including:

S301, the conversion device listens to the UDP port.

S302: The conversion device obtains device information of one or more smart devices according to the monitored message.

S303: The conversion device queries the mDNS service list for device information.

S304: If the device information exists in the mDNS service list, the conversion device calls the mDNS service of the smart device when receiving the query instruction sent by the terminal device.

If the device information of the smart device already exists in the mDNS service list, it means that the smart device has registered the mDNS service. You can directly retrieve the historical information to obtain the mDNS service of the smart device, thereby obtaining the device information of the smart device and realizing the search and discovery of the smart device. In this case, there is no need to register the mDNS service.

S305: If the device information does not exist in the mDNS service list, the conversion device registers the mDNS service according to the device information.

S306, the conversion device multicasts the mDNS service of the smart device for query by the terminal device.

Using the method for searching smart devices provided by the embodiment of the present disclosure, the conversion device monitors the UDP port to obtain information that supports the UDP data format, thereby determining the device information of the smart device that supports the UDP format. The mDNS service corresponding to the smart device is determined based on the device information, and the mDNS service of the smart device is multicast to the mDNS port. In this way, when searching for a smart device, the terminal device can directly obtain the device information of the smart device through the mDNS service of the smart device, thereby realizing the search and discovery of the smart device. The sending and receiving process of the mDNS service is not restricted by the manufacturer or platform. Therefore, when the smart device supports the UDP format and the smart device and the terminal device belong to different manufacturers or platforms, the search and discovery of the device can also be realized through the mDNS service. In the cross-manufacturer or cross-platform smart device search scenario, the success rate of smart device search is effectively improved.

In addition, when a smart device is online, the device information is used to determine whether the online smart device already exists in the existing mDNS service list. If it already exists, it means that the smart device has registered with the mDNS service before. Only a call is needed to determine the device information of the smart device and complete the search and discovery of the smart device. In this way, the service registration process is performed only when the currently online smart device has not registered the mDNS service, which is conducive to simplifying the logic and avoiding program redundancy.

Optionally, the conversion device queries the device information in the mDNS service list, including: the conversion device uses the MAC address in the device information as identification information to determine the service name of the smart device, and queries the service name of the smart device in the mDNS service list. In this way, naming with the MAC address as identification information can ensure that the service name corresponds to the smart device one-to-one, so as to accurately query whether the smart device already exists in the mDNS service list. In addition, the query of the smart device can be realized based on the naming, without calling more device information, which is conducive to simplifying the query process.

Optionally, the conversion device uses the MAC address in the device information as identification information to determine the service name of the smart device, including: determining "MAC._transfer._udp.local" as the mDNS service name of the smart device. The MAC is the MAC address of the smart device. In this way, using the MAC address in the device information as identification information can ensure that the only corresponding smart device is determined, and naming in a unified format is convenient for terminal devices to query.

Optionally, the conversion device queries the mDNS service list for device information, including: the conversion device queries the mDNS service list for a MAC address of the smart device. Since the MAC address corresponds to the smart device one-to-one, querying through the MAC address can accurately determine whether the smart device already exists in the mDNS service list.

Optionally, the conversion device registering the mDNS service device according to the device information includes: the conversion device registering the mDNS service name according to the device information, and saving the device information as a service parameter associated with the mDNS service name. In this way, the device information of the smart device can be directly determined according to the mDNS service name, and the search and discovery of the smart device can be realized.

Here, the device information can be saved in TXT text format. When the amount of device information saved is small, the TXT text format can save data more conveniently. In other embodiments, data can also be stored in a database, written into a memory, etc. The specific saving method can be selected according to the amount of data saved.

Optionally, the conversion device saves the device information as a service parameter associated with the mDNS service name, including: recording the device information in the form of a key-value pair as a service parameter of the smart device. The device information is recorded in the form of a key-value pair, that is, a "key" corresponds to a "value" in the device information. For example, the device product number of a smart device is recorded as "0001" and the device software version is recorded as "1.0.0". In this way, various device information of the smart device can be simply and accurately recorded.

Optionally, after the conversion device registers the mDNS service according to the device information, it also includes: adding the mDNS service name to the mDNS service list. In this way, the newly registered smart device is added to the mDNS service list, and the mDNS service list is automatically updated. In the subsequent search for smart devices, the mDNS service list can be used to determine whether the current smart device has completed the mDNS service registration, thereby avoiding repeated registration of the mDNS service of the same smart device. At the same time, it can directly call to obtain device information when the registration has been completed, thereby simplifying the process.

Optionally, the method for searching for smart devices further includes: converting the device to obtain the online status of each smart device in the mDNS service list. When the smart device is offline, the offline smart device is deleted from the mDNS service list. In this way, the mDNS service list is updated in real time, and the real-time online smart devices can be determined according to the mDNS service list.

Optionally, the conversion device obtains the online status of each smart device in the mDNS service list, including: the conversion device determines the online status of the smart device according to the online announcement or offline notification sent by the smart device. When receiving the offline notification of the smart device, it is determined that the smart device is offline.

As shown in FIG. 4 , the embodiment of the present disclosure provides another method for searching for smart devices, including:

S401, the conversion device monitors the UDP port.

S402: The conversion device obtains device information of one or more smart devices according to the monitored message.

S403: The conversion device uses the MAC address in the device information as identification information to determine the service name of the smart device.

S404: The conversion device obtains the online status of each smart device in the mDNS service.

S405: When the smart device is offline, the conversion device deletes the offline smart device from the mDNS service list.

S406: The conversion device determines whether the service name exists in the mDNS service list.

If so, in S407, the conversion device keeps the DNS service list unchanged, and upon receiving a query instruction sent by the terminal device, calls the mDNS service of the smart device.

If not, S408, the conversion device registers the mDNS service name according to the device information, and saves the device information as a service parameter associated with the mDNS service name.

S409: The conversion device adds the mDNS service name to the mDNS service list.

S410, the conversion device multicasts the mDNS service of the smart device for query by the terminal device.

Corresponding to the above method, the conversion device can be divided into three functional modules: a decoding module, a data packet conversion module and a management module. Among them, the decoding module is responsible for decoding the received UDP format data packet to obtain the device information of the smart device. The data packet conversion module is responsible for judging whether the smart device already exists in the existing mDNS service list based on the device information obtained by decoding. And if there is no smart device in the mDNS service list, the mDNS service is registered according to the decoded device information to complete the data conversion from UDP to mDNS. The management module is responsible for managing the mDNS service list. On the one hand, the newly registered mDNS service is added to the list, and on the other hand, the offline smart device is deleted from the list to realize the automatic update of the mDNS service list. This facilitates the next round of format conversion when the new smart device is online.

By using the method for searching smart devices provided by the embodiment of the present disclosure, the conversion device monitors the UDP port to obtain information supporting the UDP data format, thereby determining the device information of the smart device supporting the UDP format. The MAC address in the information is used as identification information to determine the mDNS service name, and then the service name is used to determine whether the service name already exists in the mDNS service list, thereby determining whether the currently online smart device has registered the mDNS service. If the mDNS service has been registered, when the query instruction sent by the terminal device is received, the mDNS service of the smart device can be called without re-registration. If the currently online smart device has not registered the mDNS service, the service name is registered according to the device information, and the device information is saved under the service name. The mDNS service of the smart device is multicast to the mDNS port for the terminal device to query. In this way, when searching for smart devices, the terminal device can directly obtain the device information of the smart device through the mDNS service of the smart device, thereby realizing the search and discovery of the smart device. The sending and receiving process of the mDNS service is not restricted by the manufacturer or platform. Therefore, when the smart device supports the UDP format and the smart device and the terminal device belong to different manufacturers or platforms, the search and discovery of the device can also be realized through the mDNS service. In the cross-manufacturer or cross-platform smart device search scenario, the success rate of smart device search is effectively improved.

During this process, the online status of the smart device in the mDNS service list is detected, so that the mDNS service corresponding to the offline smart device is deleted in time when the device is offline, and the mDNS service list is updated in real time, so that the terminal device can search for the currently online smart device.

As shown in FIG5 , the embodiment of the present disclosure provides another method for searching for smart devices, including:

S501, the conversion device monitors the UDP port.

S502, smart device accesses the network.

S503, the smart device broadcasts a data packet.

The data packet here is a data packet in UDP format, including an online announcement. The conversion device can obtain the device information of the smart device according to the data announcement. Correspondingly, the smart device broadcasts the data packet to the UDP data port in the local area network.

S504: The conversion device obtains device information of one or more smart devices according to the monitored message.

S505: The conversion device determines the mDNS service of the smart device according to the device information.

S506, the conversion device multicasts the mDNS service of the smart device.

S507, the terminal device sends a query instruction.

S508: The conversion device sends device information to the terminal device in response to the query instruction.

Using the method for searching smart devices provided by the embodiment of the present disclosure, the conversion device monitors the UDP port to obtain information that supports the UDP data format, thereby determining the device information of the smart device that supports the UDP format. The mDNS service corresponding to the smart device is determined based on the device information, and the mDNS service of the smart device is multicast to the mDNS port. In this way, when searching for a smart device, the terminal device can directly obtain the device information of the smart device through the mDNS service of the smart device, thereby realizing the search and discovery of the smart device. The sending and receiving process of the mDNS service is not restricted by the manufacturer or platform. Therefore, when the smart device supports the UDP format and the smart device and the terminal device belong to different manufacturers, When searching for smart devices across manufacturers or platforms, the mDNS service can also be used to search and discover devices. In the cross-vendor or cross-platform smart device search scenario, the success rate of smart device search is effectively improved.

Optionally, the query instruction sent by the terminal device is compatible with the registered mDNS service. For example, when the mDNS service name is "MAC._transfer._udp.local", the query instruction queries the mDNS service of the "transfer._udp.local" type.

Optionally, the conversion device sending the device information to the terminal device includes: the conversion device sending the device information recorded in a TXT text format to the terminal device.

As shown in FIG6 , an embodiment of the present disclosure provides an electronic device 200, including a processor 61 and a memory 62. Optionally, the electronic device may further include a communication interface 63 and a bus 64. The processor 61, the communication interface 63, and the memory 62 may communicate with each other through the bus 64. The communication interface 63 may be used for information transmission. The processor 61 may call the logic instructions in the memory 62 to execute the method for searching for smart devices in the above embodiment.

In addition, the logic instructions in the memory 62 described above may be implemented in the form of software functional units and when sold or used as independent products, may be stored in a computer-readable storage medium.

The memory 62 is a computer-readable storage medium that can be used to store software programs and computer executable programs, such as program instructions/modules corresponding to the method in the embodiment of the present disclosure. The processor 61 executes the function application and data processing by running the program instructions/modules stored in the memory 62, that is, the method for searching smart devices in the above embodiment is implemented.

The memory 62 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and an application required for at least one function; the data storage area may store data created according to the use of the terminal device, etc. In addition, the memory 62 may include a high-speed random access memory and may also include a non-volatile memory.

As shown in FIG7 , an embodiment of the present disclosure provides a conversion device 100, including: a conversion device body, and the above-mentioned electronic device 200. The electronic device 200 is installed in the conversion device 100 body. The installation relationship described here is not limited to placement inside the product, but also includes installation connections with other components of the product, including but not limited to physical connections, electrical connections, or signal transmission connections. It can be understood by those skilled in the art that the electronic device 200 can be adapted to a feasible product body, thereby realizing other feasible embodiments.

An embodiment of the present disclosure provides a computer-readable storage medium storing computer-executable instructions, wherein the computer-executable instructions are configured to execute the method for searching for smart devices.

The computer-readable storage medium mentioned above may be a transient computer-readable storage medium or a non-transitory computer-readable storage medium.

The present disclosure provides a computer program, which, when executed by a computer, enables the computer to: The computer implements the above method.

An embodiment of the present disclosure provides a computer program product, which includes computer instructions stored on a computer-readable storage medium. When the program instructions are executed by a computer, the computer implements the above method.

The technical solution of the embodiment of the present disclosure can be embodied in the form of a software product, which is stored in a storage medium and includes one or more instructions for enabling a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in the embodiment of the present disclosure. The aforementioned storage medium may be a non-transient storage medium, including: a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and other media that can store program codes, or a transient storage medium.

The above description and the accompanying drawings fully illustrate the embodiments of the present disclosure so that those skilled in the art can practice them. Other embodiments may include structural, logical, electrical, process and other changes. The embodiments represent only possible changes. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Parts and features of some embodiments may be included in or replace parts and features of other embodiments. Moreover, the words used in this application are only used to describe the embodiments and are not used to limit the claims. As used in the description of the embodiments and the claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms as well. Similarly, the term "and/or" as used in this application refers to any and all possible combinations of one or more associated listings. In addition, when used in this application, the term "comprise" and its variants "comprises" and/or including (comprising) refer to the existence of stated features, wholes, steps, operations, elements, and/or components, but do not exclude the existence or addition of one or more other features, wholes, steps, operations, elements, components and/or groups of these. In the absence of further restrictions, the elements defined by the sentence "comprising a ..." do not exclude the existence of other identical elements in the process, method or device comprising the elements. In this article, each embodiment may focus on the differences from other embodiments, and the same or similar parts between the embodiments may refer to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method part disclosed in the embodiments, then the relevant parts can refer to the description of the method part.

Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software may depend on the specific application and design constraints of the technical solution. The technicians may use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the embodiments of the present disclosure. The technicians will clearly understand that for the convenience and simplicity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here. State.

In the embodiments disclosed herein, the disclosed methods and products (including but not limited to devices, equipment, etc.) can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units can be only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between each other shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms. The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to implement this embodiment. In addition, each functional unit in the embodiment of the present disclosure may be integrated in a processing unit, or each unit may exist physically alone, or two or more units may be integrated in one unit.

The flowcharts and block diagrams in the accompanying drawings show the possible architecture, functions and operations of the system, method and computer program product according to the embodiments of the present disclosure. In this regard, each box in the flowchart or block diagram can represent a module, a program segment or a part of a code, and the module, program segment or a part of the code contains one or more executable instructions for implementing the specified logical function. In some alternative implementations, the functions marked in the box can also occur in an order different from that marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, which can depend on the functions involved. In the descriptions corresponding to the flowcharts and block diagrams in the accompanying drawings, the operations or steps corresponding to different boxes can also occur in an order different from that disclosed in the description, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, which can depend on the functions involved. Each box in the block diagram and/or flowchart, and the combination of boxes in the block diagram and/or flowchart can be implemented with a dedicated hardware-based system that performs a specified function or action, or can be implemented with a combination of dedicated hardware and computer instructions.

The above is only a preferred implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

A method for searching for a smart device, comprising:

Listen to UDP port;

According to the monitored messages, obtain device information of one or more smart devices;

Determine the mDNS service of the smart device according to the device information;

The mDNS service of the smart device is multicasted for terminal devices to query.
The method according to claim 1, wherein determining the mDNS service of the smart device according to the device information comprises:

Query the device information in the mDNS service list;

If the device information exists in the mDNS service list, upon receiving a query instruction sent by the terminal device, the mDNS service of the smart device is called;

If the device information does not exist in the mDNS service list, register the mDNS service according to the device information.
The method according to claim 2, wherein querying the device information in the mDNS service list comprises:

The MAC address in the device information is used as identification information to determine the service name of the smart device, and the service name of the smart device is queried in the mDNS service list.
The method according to claim 2, wherein registering the mDNS service according to the device information comprises:

Register the mDNS service name according to the device information;

The device information is saved as a service parameter associated with the mDNS service name.
The method according to claim 4, wherein the saving the device information as a service parameter associated with the mDNS service name comprises:

The device information is recorded in the form of a key-value pair as a service parameter of the smart device.
The method according to claim 4, wherein after registering the mDNS service name according to the device information, the method further comprises:

Add the mDNS service name to the mDNS service list.
The method according to any one of claims 1 to 6, wherein the method further comprises:

Get the online status of each smart device in the mDNS service list;

When the smart device is offline, the offline smart device is deleted from the mDNS service list.
A computer-readable storage medium, wherein the computer-readable storage medium includes a stored program, Wherein, when the program is run, the method according to any one of claims 1 to 7 is executed.
An electronic device comprises a memory and a processor, wherein the memory stores a computer program, and the processor is configured to perform the following steps through the computer program:

Listen to UDP port;

According to the monitored messages, obtain device information of one or more smart devices;

Determine the mDNS service of the smart device according to the device information;

The mDNS service of the smart device is multicasted for terminal devices to query.
The electronic device according to claim 9, wherein determining the mDNS service of the smart device according to the device information comprises:

Query the device information in the mDNS service list;

If the device information exists in the mDNS service list, upon receiving a query instruction sent by the terminal device, the mDNS service of the smart device is called;

If the device information does not exist in the mDNS service list, register the mDNS service according to the device information.
The electronic device according to claim 10, wherein querying the device information in the mDNS service list comprises:

The MAC address in the device information is used as identification information to determine the service name of the smart device, and the service name of the smart device is queried in the mDNS service list.
The electronic device according to claim 10, wherein registering the mDNS service according to the device information comprises:

Register the mDNS service name according to the device information;

The device information is saved as a service parameter associated with the mDNS service name.
The electronic device according to claim 12, wherein the step of saving the device information as a service parameter associated with the mDNS service name comprises:

The device information is recorded in the form of a key-value pair as a service parameter of the smart device.
The electronic device according to claim 12, wherein after registering the mDNS service name according to the device information, the electronic device further comprises:

Add the mDNS service name to the mDNS service list.
The electronic device according to any one of claims 9 to 14, wherein the method further comprises:

Get the online status of each smart device in the mDNS service list;

When the smart device is offline, the offline smart device is deleted from the mDNS service list.
A conversion device, comprising:

a conversion device body; and,

The electronic device according to any one of claims 9 to 15, mounted on the conversion device body.
A computer program, when executed by a computer, causes the computer to implement the method according to any one of claims 1 to 7.
A computer program product, comprising computer instructions stored on a computer-readable storage medium, and when the program instructions are executed by a computer, the computer is enabled to implement the method according to any one of claims 1 to 7.