499 results about "MQTT" patented technology

The invention discloses a data concentrator acquisition control method based on MQTT (Message Queuing Telemetry Transport), a data concentrator acquisition control device based on MQTT and a data concentrator acquisition control system based on MQTT. The method comprises the following steps of connecting an MQTT server; performing theme subscription according to predefined parameters; and forwarding commands by virtue of the MQTT server, thereby further realizing acquisition and remote control. The device comprises a server connection unit, a theme subscription unit and an instruction execution unit. The system comprises the MQTT server, a sensor, an actuator, a concentrator, a data acquisition client and a remote acquisition client. By virtue f the MQTT protocol and the theme subscription mechanism, various communication demands among terminals are realized, real-time acquisition and remote control of the data concentrator can be realized conveniently, and the problem of inadequate IP (Internet Protocol) address resources in common network communication is effectively solved. By virtue of an MQTT frame, the system structure complexity can be effectively reduced, the expandability, stability and real-time property of the system are enhanced, the bandwidth is saved, and the expenditure is reduced. The method, the device and the system can be widely applied to the internet of things.

The invention provides an industrial Internet of Things intelligent gateway, a networking system and a data processing method. By combining edge computing and a cloud technology, an industrial Internet of Things intelligent gateway which has rich interfaces, supports MQTT and other industrial control protocols and has local real-time data analysis and rule-based decision processing capabilities isset. A solution combining local intelligent processing of data acquired by edge equipment and transmission of original data to a cloud server is realized, so that events occurring on site can be quickly responded, and the operation condition of the system can be macroscopically obtained and known at the cloud.

The invention discloses a communication method based on an MQTT topic subscription mechanism and an access gateway. The communication method comprises that an IMService, an MQTTClientI, an MQTTClientR, an MQTTServer of an access gateway A and a corresponding access gateway B are started, a first user comes online on the access gateway A, a second user comes online on the access gateway B, based on the access gateway A and the access gateway B, the first user exchanges messages with the second user. According to the invention, the problem existing in the prior art that a message router of a distributed instant messaging application is complex is solved, the complex message routing function can be omitted, messages can be forwarded based on the subscription relation maintained by the server and messages based on the subscription relation, and the message routing function can be automatically achieved, and therefore the message routing table does not need to be maintained, and the instant messaging scheme is simplified.

Systems and methods for managed device-to-device communication in business computing systems are disclosed. An event stream processor is extended with a communication adapter to handle messages from devices using disparate communication protocols (e.g., versions of MQTT). The messages from the devices can be received through a gateway that converts the disparate communication protocols into a common communication protocol (e.g., WebSocket). Specific communication protocols associated with each device, as well as publisher-subscriber relationships among the devices, are established and maintained in communication adapter of the ESP.

The invention discloses an intelligent equipment communication platform based on a MQTT message protocol. The intelligent equipment communication platform comprises a client and a server; the client and the server establish wireless communication through a publish-subscribe mode message protocol of a MQTT binary message; the client comprises an address publishing module, an identifier subscribingmodule, a data publishing module and an information subscribing module; the server comprises an address subscribing module, an identifier publishing module, an information publishing module and a datasubscribing module; the client and the server establish the connection and communicate through the publish-subscribe mode, thereby providing a MQTT protocol communication platform for the low-power consumption sensor, the mobile phone, the embedded computer, the micro controller and like intelligent equipment and mobile equipment. The energy and traffic loss of the access equipment can be reducedwhen the communication platform has the high extensibility by adopting the concise performance of the MQTT message protocol, and the communication service with high S/N and reliability can be provided for the terminal equipment faced with limited computing capacity, low working frequency band and like bad transmission conditions.

The invention relates to the field of network communication, and provides a data collection and remote control method aiming at the problem that during existing data collection and remote control, release and subscription of a subject need predetermined parameters. The method comprises the steps as follows: an equipment end and a control end are connected with an MQTT server; the equipment end submits an own machine code and a random character string to the control end to perform binding storage; the equipment end releases a message to the MQTT server by using a fixed prefix and the own machine code as a release subject, and the control end subscribes to the message from the MQTT server by using the fixed prefix and a wildcard character as a subscription subject; and the equipment subscribes to the message from the MQTT server by using the own machine code and the random character string as the subscription subject, the control end releases the message to the MQTT server by using the subscription subject of the equipment as a release subject, and the MQTT server automatically pushes the message according to the subscription subject and the release subject. The method and the systemprovided by the invention are applicable to data collection and remote control of the intelligent equipment.

The invention relates to an encryption method applied to a MQTT-SN protocol, and relates to the field of communication. The method employs a harsh algorithm and ciphertext-policy attribute-based encryption method, so that a publishing terminal, an agent server and one or a plurality of subscription terminals can complete encrypted communication. The method herein includes the following steps: an agent server verifying the identity of a publishing/subscription terminal, performing registration of the publishing/subscription terminal, and generating a system common parameter; the publishing terminal encrypting a plaintext load by using the ciphertext-policy attribute-based encryption method; the publishing terminal transmitting the encrypted load to the agent server, the agent server forwarding the encrypted load to one or a plurality of subscription terminals; and the subscription terminal applying for a secrete key from the agent server, decrypting the encrypted load, obtaining a plaintext. According to the invention, the method can implement identity verification of a MQTT-SN protocol publishing/subscription terminal, data integrity verification, and data confidentiality protection, and better addresses the safety issues faced by the MQTT-SN protocol in terminals of wireless sensor network applications.

The invention relates to a message engine integrated with a communication system. The message engine includes a message array and a MQTT agent server which are intended for realizing message communication function based on Internet of Things standard protocol, designing message route rules based on publishing/subscription mechanism of the message, and realizing multi-terminal synchronization mechanism of messages; a business module level which is intended for realizing each business function of the message engine; and a data storage level which is intended for providing data support for the business module level. according to the invention, a message engine server has excellent anti-compression property and robustness, can process multiple abnormities, has the highest robustness; at the same time can better be applied to mobile internet and has excellent concurrent processing.

The invention provides a message pushing system and method based on an MQTT protocol. The system comprises a client and a server, wherein the client comprises an application client and a notificationpushing client, the application client comprises a publishing client and a subscription client, and the server comprises a push server and an MQTT server group; the publishing client publishes a thememessage to the push server, and the push server receives the published theme message, manages and stores the theme message by using a message management service, and sends a theme message notification to the MQTT server group; the MQTT server group receives and forwards the theme message notification to the subscription client; the subscription client pulls the stored subscription theme message from the message management service through the notification push service according to the theme message notification, and sends deletion request information to the push server; and the push server receives the deletion request information, deletes the stored corresponding theme message in the message management service, and informs the subscription client of a deletion result.

The invention discloses a system for serial port transparent transmission and program updating in an internet range. The system is characterized by comprising n communication apparatuses, an updatingcontrol terminal, an MQTT server and n target devices; and the ith communication apparatus is only connected with the ith target device. According to the system, when both transmission parties are connected to the internet through a router allocated with a private IP or general network frameworks of other NAT devices, point-to-point serial port transparent transmission in the internet range is realized; and seamless secure updating of a remote program can be realized through the internet under the condition that the target devices do not need to perform any operation and original program codesare not modified, so that data transmission and behavior updating of industrial control equipment and household appliances in the internet range are realized under the condition of not increasing additional development workload.

The invention discloses a rule engine-based hybrid protocol Internet of Things platform. The overall architecture of the platform comprises an access layer, a persistence layer, a service layer and anapplication layer from bottom to top, wherein the access layer realizes hybrid protocol access by using an MQTT protocol and a low-power wide area network LPWAN protocol represented by a LoRaWAN protocol, the equipment accessed by the MQTT protocol and the LoRaWAN protocol uploads acquired equipment uplink data to an upper layer, receives downlink data transmitted by the upper layer and forwardsthe downlink data to the equipment; the application layer is mainly used for providing platform functions for users through hyper text transport protocol (HTTP) interfaces, and the functions include user management, product management, equipment management, rule engine configuration and online debugging. The invention provides the rule engine-based hybrid protocol Internet of Things platform, andaims to provide a solution capable of rapidly developing Internet of Things applications, reducing Internet of Things development cost and improving equipment management capability for small and medium-sized entrepreneurship enterprises.

The invention provides an intelligent terminal operation system applied to an IoT (Internet of Things). The intelligent terminal operation system comprises a Davlik virtual machine module, a Java language basic library, a Java dynamic loading module, a JSON packaging module, a MQTT communication module, an IoT networking bearing module, an industry hardware interface module, a sensor interface module, an application management module, an industry interface specification module, an application layer interface and a porting layer for providing a standard interface to the Davlik virtual machine module and porting the Davlik virtual machine module into an embedded operation system. The intelligent terminal operation system disclosed by the invention provides rich industry hardware interfaces and sensor interfaces, implements hardware and software separation, and is convenient for software upgrading and remote management so as to have a low requirement for system resources and have high efficiency.

The invention is suitable for the technical field of communication, and provides a method and a system for remotely controlling electronic equipment, a mobile terminal and the electronic equipment. The method comprises the following steps that the mobile terminal generates a control message for remotely controlling the electronic equipment according to user operation; the mobile terminal encrypts the control message by a remote control key stored in a local terminal; the mobile terminal encapsulates the encrypted control message in an MQTT (Message Queuing Telemetry Transport) message; and the mobile terminal sends the MQTT message including the control message to an information push server, wherein the control message carries an ID (identification) of the electronic equipment, so that the information push server transfers the control message to the electronic equipment corresponding to the ID according to the ID of the electronic equipment. By aid of the MQTT frame, the complexity of the system frame is reduced, and the development cycle is shortened; and by using the message PUSH mechanism, the server expense is reduced, the bandwidth is saved, the terminal power consumption is reduced, and the remote control function is conveniently expanded.

The invention belongs to the technical field of Internet of Things, and particularly relates to an edge computing gateway secure communication method and system, terminal equipment and a server. The method comprises the steps of performing structured processing on data according to a preset structured design, and generating and analyzing structured data through various preset interfaces; constructing a secure network channel between the edge computing gateway and the server, and performing authentication and encryption and decryption processing on the data; optimizing the MQTT interface, and taking the optimized MQTT interface as a communication interface between the edge computing gateway and the server; performing instant messaging between the edge computing gateway and the server basedon a preset lightweight text communication protocol; performing resource monitoring and scheduling by using a communication system, and processing the original data of the sensor according to the computing power of the edge computing gateway; carrying out equipment program module switching and equipment parameter and communication parameter configuration by automatically reading an external file.Safe, real-time and reliable service guarantee is provided for information interaction of an intelligent traffic scene.

The invention discloses a message routing method based on MQTT (Message Queuing Telemetry Transport) multi-layer cascade. The method comprises the steps of performing MQTT-based multi-gateway networking; performing routing down based on the MQTT-based multi-gateway networking, to route a message sent by an MQTT control end to a household appliance; and performing routing up based on the MQTT-based multi-gateway networking, to route a feedback message of the household appliance to the MQTT control end. The method improves the centralized star network topology of an MQTT protocol, supports the gateway topology of multi-layer cascade, supports multi-gateway connection networking and message routing, solves the problems of multi-gateway connection, communication and management of current smart home, and supports dividing household appliances into different areas for secure and fast internal network control and small-range management according to custom rules in the family.

The invention discloses a production line edge equipment longitudinal integrated gateway based on OPC UA and an implementation method thereof, and the method comprises the steps: building data communication with equipment based on a special protocol supported by an equipment supplier, obtaining operation data, carrying out edge computing, and storing original data and a preprocessing result; carrying out information modeling on production line edge equipment based on OPC UA, carrying out association mapping on model nodes, underlying data and interfaces, constructing an OPC UA server, and unifying equipment data interfaces; realizing feedback control over the edge equipment through parameter writing. The defects that a traditional gateway can only achieve one-way flow of data, and an upper-layer application result cannot be correctly fed back to the edge equipment in time are effectively overcome; besides, the gateway opens a plurality of protocol interfaces such as MQTT, TCP/IP and UDP to the outside, supports secondary development of users, ensures the expandability of the gateway, and has important practical significance for longitudinal integration of production line equipmentand closed-loop control of a production line.

The invention discloses an embedded internet of things gateway system. The system is respectively communicated and connected with a client and a boundary router, the client way is replaced by the Webwebpage way, the gateway comprises a MQTT message proxy server, a Web server, a database and a GPRS alarm module; the MQTT message proxy server is communicated and connected with the Web server; the Web server is communicated and connected with the database and the GPRS alarm module; the embedded equipment sends short message information through the GPRS alarm module, performs information interaction with a browser of the client through the Web server, and performs information interaction with the boundary router through the MQTT message proxy server. The system has the advantage that a user can immediately acquires the environment parameter data of each sensor node in the 6LoWPAN wireless sensor network by using the browser in the webpage way, the tediousness of developing corresponding client software on the PC or smart phone and different smart platforms, the development cost and the maintenance cost are reduced; and the embedded equipment is used as the running environment, and thehardware cost is reduced.

The disclosure discloses an Internet of Things device control method combining a block chain and a central server. The Internet of Things device control method combining the block chain and the central server comprises the following steps: in the block chain established by a consensus network, the Internet of Things device expands through registering to the central server, so as to realize the communication with other registered devices; the central server or a MQTT message transfer server writes the information into the block chain, and then each participating node jointly maintains the device information recorded in the block chain; a mobile phone client (APP) and the device establish connection with the shared MQTT message transfer server through the Internet protocol after register, and then the APP and the Internet of Things device communicate in real time through the shared MQTT message transfer server with the Internet of Things protocol; and the device and the APP synchronize part of the data through CDN, and then write the own information to the block chain through the connected MQTT message transfer server.

The embodiment of the invention discloses a configuration management method, apparatus and device. The method comprises the steps of: determining a application message required being distributed to atarget logic group; obtaining an identifier of the target logic group, wherein the target logic group comprises at least one target terminal; according to a gateway mapping table and the identifier ofthe target logic group, inquiring a gateway connected with each target terminal in at least one target terminal to obtain at least target gateway, and generating an MQTT (Message Queuing Telemetry Transport) publishing message according to the application message; and sending the MQTT publishing message to the at least one target gateway, wherein the MQTT publishing message is configured to indicate the target gateway receiving the MQTT publishing message to send corresponding application messages to each target terminal, belonging to the target logic group, connected with the target gateway.According to the embodiment, the efficiency of publishing an application message to a mass network access device by the control device can be improved.

The invention discloses an electric energy meter remote monitoring system and a method thereof. The system comprises a local server, an MQTT server, and a WEB server, wherein the local server serves as an Intranet server, the inner part is embedded with Raspberry Pi as a central processing unit, and the Raspberry Pi acquires information acquired by an electric energy meter state monitoring circuit through a first wireless communication module; the MQTT server is connected with the local server and the WEB server respectively; the WEB server is connected with multiple types of clients; the WEB server is used for ensuring stable operation and access of a visual interface of the client; the MQTT server is also connected with a cache server; the cache server is used for periodically writing data received by the MQTT server; the cache server is also connected with a data persistence module; and the data persistence module is used for calling data cached in the cache server and storing the data to the data persistence module according to a preset format or a sequence in a preset time interval for persistence processing.