59results about How to "Protocol is simple" patented technology

The invention discloses wireless parallel test system and test method based on ZigBee, which relate to the technical field of test. The invention solves the problems of large field wiring construction amount and influence of a test signal by field wiring quality caused by the fact that the traditional test system acquires a test signal in a wire communication way. The test system forms a ZigBee network by adopting main wireless communication equipment and a plurality of wireless communication modules; the main wireless communication equipment is connected with a test control terminal by adopting a UART interface; and the wireless communication module in each kind of test equipment is connected with a built-in test module by adopting the UART interface. In the method for realizing test of the test system, the test control terminal is connected with the main communication equipment by the UART interface to realize the transmission of a test command and a test result, and the main wireless communication equipment and a plurality of kinds of equipment to be tested realize data communication by adopting the ZigBee network. The invention is suitable for a modern automatic test system, can realize the mutual coordination of hundreds of equipment to realize communication, and has high test efficiency.

The invention provides an intelligent equipment cloud platform control method based on the SDMP protocol. According to the method, communication is established between the intelligent equipment and a cloud platform server with the communication protocol in the SDMP format, and the method comprises the following communication steps: the registration state is queried by the intelligent equipment; information is acquired by the intelligent equipment, and intelligent control is performed by the cloud platform server on the intelligent equipment; and a control instruction is sent by an intelligent control terminal to perform manual control on the intelligent equipment through the cloud platform server. According to the control method of the invention, the limit that the control platform is restricted to the independent control of each unit in the local area network can be broken through, the control channel of the intelligent equipment can be broadened, and the application range of the intelligent equipment control platform can be expanded. According to the control method of the invention, a standard communication protocol is defined for the communication between various brands and various types of intelligent equipment and the cloud platform server, and a good channel is provided for the reliable interaction between various intelligent equipment and a cloud platform, the protocol is simple, safe, easy to expand and easy to implement.

The invention discloses a method for state presentation based on MQTT. The method comprises the steps that 1, state messages sent to a second client by a first client are received; 2, the state messages needing to be cached are refreshed, wherein according to the refreshing process, the newest state message is restored and the earlier state messages are deleted according to the time sequence; 3, the newest state message is stored to a caching zone; 4, the newest state message stored in the caching zone is pushed to the second client. The invention further discloses a system for state presentation based on MQTT. The system comprises a state message receiving unit, a state message refreshing unit, a state message buffering unit and a state message pushing unit. According to the method, state presentation is achieved on the basis of MQTT, the advantage of low weight of MQTT is obtained, and meanwhile the effectiveness of the state messages is guaranteed according to the mechanism that only the last state message is cached.

The invention provides a method for realizing real time threads state monitoring in multiple thread system which comprises, setting one thread in a multiple thread system as a monitoring thread, the others being monitored threads, wherein the monitoring thread is used for contacting each monitored threads to know their operating modes, each monitored thread responding the message from the monitoring thread, and feeding back the working condition and other information of itself, the monitoring thread maintaining the thread status information chart, and the system employing different strategy according to the status of each thread.

The invention relates to a PWM (Pulse-Width Modulation) dimming an LED (Light Emitting Diode) road lamp controller based on Zigbee and is mainly used for controlling a road lamp as well as discovering and solving failure problems in time. The PWM dimming the LED road lamp controller comprises an LED lamp, a power supply module, a wireless sensing module, a control module, a base station and a computer, wherein the power supply module comprises a power supply control chip, an input power supply, a booster circuit and a constant-current output circuit; the control module comprises a PWM wave generator, an illumination intensity acquisition sensor, a failure feedback module and an executing node; the input power supply adopts a constant-current power supply of an LED solar energy road lamp; the control module is connected with the base station through a Zigbee wireless sensor network; and the base station is connected with the computer. The PWM dimming the LED road lamp controller is used for supplying power through environment-friendly solar energy and collecting long-distance illumination intensity through the Zigbee wireless sensor network; and PWM waves can be used for controlling luminance variation of each road lamp and receiving failure alarm signals of each road lamp.

The invention discloses a remote mobile phone test experiencing method based on the RTMP. The remote mobile phone test experiencing method based on the RTMP comprises the following steps that S1, the screen content of a current mobile phone is captured in real time and the screen content is stored in a buffer zone; S2 compression conversion is conducted on screen image data and the screen image data are encoded into video stream data; S3 the video stream data are transmitted to an uploading server, and a stream media uploading module is uploaded to an RTMP stream media server through an RTMP stream media protocol; S4 the stream media server releases video streams to a webpage client side, the client side logs in the webpage client side address on the stream media server through a browser to conduct remote mobile phone browsing, wherein the webpage client side address is located on the stream media server and the media streams are released on the webpage client side address; S5 a user transmits control action information to a control information analysis module on the uploading server through a user-defined protocol, an operation request is responded at a mobile phone terminal which the user applies for, and the response is fed back to the webpage client side through the S4. The remote mobile phone test experiencing method based on the RTMP has the advantages that the protocols used in the system are simple and the encoding efficiency is improved.

This invention provides a test method for link quality based on address analysis protocol, its related device and a system, which expands the address analysis protocol and records the transmission time of its request messages and the request response message so that the expanded protocol supports test to the quality of Ethernet links.

The invention discloses a disposable programmable memory controller. The disposable programmable memory controller comprises an unlocking circuit, an instruction decoding circuit and a programming circuit, wherein the unlocking circuit is used for receiving a level signal and a serial data signal, and sending an unlocking signal when the level signal and the serial data signal satisfy a specific time sequence; the instruction decoding circuit is connected with the unlocking circuit, and is used for receiving an instruction code and a serial clock signal in the serial data signal and executing a decoding operation when receiving the unlocking signal; and the programming circuit is connected with the instruction decoding circuit, and is used for receiving the serial data signal and the serial clock signal according to a programming starting signal output by the instruction decoding circuit and writing data in the serial data signal into the disposable programmable memory. The invention furthermore discloses an integrated circuit and a disposable programmable memory program burning method.

An IP fax and working method thereof, referring to the technical field of utilizing IP technique to fax. This invention includes a mail sending / receiving module, a session initialization protocol fax device, opposite user agents, further includes an IP fax server; a control order port of the mail sending / receiving module is connected with the IP fax server; after receiving by IP fax server, the IP fax server will send a feedback information to the mail sending / receiving module; the first input end of the IP fax server is connected with an input end of the session initialization protocol fax device so as to realize the inter-conversion flowing from T.38 to the fax file form; the second input end of the IP fax server is connected with an input end of the opposite user agents so as to realize the encapsulation to the session initialization protocol stack. The target of this invention is to provide a target of source file fax transmission which has distinct gradation, simple protocol, powerful function, supports multi-path fax session, fax file distributing mailbox and plural file forms.

The invention provides an FPGA-based programmable nanosecond level timing precision pulse generator comprising an FPGA, and an upper computer, a crystal oscillator circuit, a pulse amplitude control circuit and a pulse edge conditioning circuit, which are connected to the periphery of the FPGA, wherein the FPGA comprises a serial port control module, an instruction parsing module, a timing and pulse string generation module, a clock control module, an SPI control module and an OSERDES control module. The FPGA-based programmable nanosecond level timing precision pulse generator provided by theinvention uses a piece of FPGA and a small number of peripheral circuits to realize a multichannel pulse signal with nanosecond level timing precision, and realizes a universal asynchronous transmitting and receiving transmission serial port protocol in the FPGA, so that the pulse generator has a programmable control function, the pulse period, the pulse width and the pulse delay can all be controlled by serial port programming, and the programmable pulse amplitude is achieved in combination with a pulse amplitude control circuit. The FPGA-based programmable nanosecond level timing precision pulse generator provided by the invention is small in circuit size and simple in structure, can work independently, and can also be integrated into other systems as a modular circuit.

The invention provides a civil air defense emergency alert information message compression encoding method based on Beidou communication functions. The method comprises: a civil air defense common word code library is built; words included in the code library are expressed with corresponding codes and the codes are encapsulated into subframes; characters not included in the code library are expressed with corresponding computer codes; the computer codes and the subframes are connected according to the order of the original message to form a message text, and a message header and a message tail are added to the message text to form a to-be-sent message; it is determined if the length of the to-be-sent message is greater than the maximum length, L bytes, permitted by the Beidou system, and if so, the to-be-sent message is segmented into a plurality of sub-messages, the length of which is no greater than L bytes, for sending, each sub-message having a message header and a message tail; otherwise, the to-be-sent message is sent directly. The method can reduce the length of the message and the sending times of a long message. The alert information notifying time is shortened, and the flow is saved. The method is simple and easy to implement with good reliability.

The invention discloses a distributed packet access method based on no-rate codes in cognitive radio. The invention transmits data among secondary users by using no-rate packet encoding, and provides a package access method suitable for distributed multicarrier cognitive radio systems. The method comprises the following steps of: 1. classifying and caching data to be transmitted; 2. selecting the subcarrier in a random mode, wherein the access probability is the experience weighted value of the utility function value; 3. selecting the transmission packet length by predicting the arrival time of the master user; 4. carrying out the encoding packet scheduling by using a rate domain water-filling method; and 5. and constituting the complete transmission packet to complete the packet access. The method can effectively prevent inevitable packet losses in a cognitive radio system by using the no-rate packet encoding, can be effectively applied in distributed multicarrier cognitive radio systems because the secondary users can make decisions independently, and fully considers the relations of competitions and constraints among users, thereby effectively defusing collisions and enhancing the transmission efficiency.

A method for remotely upgrading software of agricultural machinery deep scarification Internet of Things terminal equipment comprises a server and an agricultural machinery Internet of Things terminal, the server is an HTTP server, the agricultural machinery Internet of Things terminal is a terminal for uploading data through a GPRS module, and loading programs in the agricultural machinery Internet of Things terminal comprise a BootLoader terminal bootstrap program and an app application program; the latest version of the app application program is placed in the HTTP server, and an upgrade version detection function module is added in the app application program; the version detection function module is used for judging whether an executing app program needs to be backed up or not by comparing new and old version numbers, and if yes, upgrading software and the version numbers are backed up at the same time. Through optimization of hardware and software, a conventional HTTP server continues to be used, so that a new server does not need to be rebuilt when the software is remotely upgraded, and the development and maintenance cost is reduced.

The present invention relates to a magnetic tag based on a Bluetooth beacon technology and an implementation method thereof. The magnetic tag based on the Bluetooth beacon technology comprises a magnetic tag installed in a tag box; the magnetic tag comprises a sensor unit connected with a control unit, a Bluetooth radio frequency unit, a card service unit, a magnet unit and a power supply unit; and the control unit respectively performs bidirectional data transmission with the sensor unit, the Bluetooth radio frequency unit, and the card service unit, so that coordinate positioning of the magnetic tag, the card service, the Bluetooth beacon broadcast, and the magnetic tag adsorption state monitoring functions are implemented. The Bluetooth radio frequency unit uses a Bluetooth communication mode to transmit the broadcast data once every certain time, and the data content comprises the magnetic tag ID number and the reference RSSI(Received Signal Strength Indication) when the distance between the magnetic tag and the receiver is 1m; according to the reference RSSI and the received signal strength, the distance between the magnetic tag and the receiver can be estimated by using the surrounding fixedly installed receivers; and through data received by receivers at different coordinate positions on site, accurate coordinate positioning of the magnetic tag can be implemented on a server software platform.

The invention discloses a high precision wireless indoor positioning method and system. The method comprises the following steps that S1, a transmitting end sends wireless signals according to time T and frequency f; S2, a receiving end receives the wireless signals according to time T<J1> and frequency f<J1>; S3, the received wireless signals are amplified at the receiving end; S4, the receiving end sends the amplified wireless signals according to time T<J2> and frequency f<J2>; S5, the transmitting end receives the returned wireless signals according to time T<AJ> and frequency f<AJ>;and S6, the relative distance and relative speed between the transmitting end and the receiving end are calculated, wherein the relative distance is a product of propagation speed of the wireless signals and propagation time between the transmitting end and the receiving end. According to the method and the system, the indoor positioning precision and an indoor positioning coverage range can be greatly improved.

The invention relates to a protocol and an implementation method of direct transmission of an electrical power system warning message. Authorization mechanisms are only arranged among three types of messages, a master station and subsites and are used for transmitting a plurality of data and also used for transmitting a plurality of texts. An extensive makeup language (XML) format is adopted in a transmitting entity, and the protocol and the implementation method of the direct transmission of the electrical power system warning message has the advantages of being simple, safe, universal, and easy to analyze and process. When the direct transmission of the electrical power system warning message is implemented, the subsites are used as client-sides and used for collecting data / information, assembling and transmitting the messages according to formats, constructing connection with the master station, transmitting the messages of logging in / data / logging out, and closing the connection with the master station, the master station is used as a server-side and used for monitoring and receiving the connection of each subsite, returning authentication results of the subsites, and saving or displaying data transmitted from the subsites. According to the implementation method of the direct transmission of the electrical power system warning message, the subsites are connected with the master station only when information transmission is needed, and the master station dose not need to construct periodic lines with every subsites, so that server resources and periodic line resources are saved.

The invention provides a communication control system, which comprises a receiving module, an instruction confirming module, a real-time confirming module, a transforming module and a sending module. The receiving module is used for receiving one or a plurality of information and sending the information to the instruction confirming module; the instruction confirming module is used for confirming whether the information from the receiving module is instruction information or not; the real-time confirming module is used for confirming whether the information is real-time information or not after the instruction confirming module confirms whether the information is instruction information or not; the transforming module is used for respectively transforming one or a plurality of information according to the results confirmed by the instruction confirming module and the results confirmed by the real-time confirming module; and the sending module is used for respectively sending one or a plurality of transformed information to corresponding information receiving and sending facility among a plurality of external information receiving and sending facilities, so that one or a plurality of transformed information can be sent out by the corresponding information receiving and sending facility.

A network security-based terminal interaction method and related equipment, wherein the method includes: setting the local network to a point-to-point mode, generating and displaying coded graphics according to network access information; after receiving a network access request sent by a mobile terminal, and Establish a network connection; establish and monitor a service port that provides a command transmission channel, and establish a port connection with the mobile terminal after listening to the port connection request sent by the mobile terminal; receive the service information sent by the mobile terminal through the service port, and the service information Provide service parameters for multimedia data interaction with the mobile terminal. By adopting the above-mentioned method and related equipment, it has the characteristics of high network security and strong privacy when resource sharing and exchange control are performed, and the resource transmission speed is fast.

The invention relates to a system and methods for providing monitoring services. According to the invention, embodiments herein relate to systems and methods for providing monitoring services. According to a first aspect of the embodiments herein, a method for providing a monitoring service is provided. The method comprises receiving, at an aggregator proxy function, APF in a first Public Land Mobile Network, PLMN, a first event report transmitted by a monitoring function in the first PLMN. The first event report comprising first event information related to a monitoring event, and a request identifier. Further, the method also includes receiving, at the APF, a second event report transmitted by a monitoring function in the first PLMN. The second event report comprising second event information related to the monitoring event, and said request identifier. After receiving the first and second event reports, the APF transmitting an aggregate event report to a report receiving function not in the first PLMN. Such a report receiving function may be e.g. an SCEF implemented in a in a second PLMN that is separate and distinct from the first PLMN or at an external business partner. The aggregate event report comprising at least one of the first event information and the second event information, and said request identifier. Further, the embodiments herein relate to a corresponding aggregator proxy function (APF), a corresponding method in a monitoring function, and a corresponding monitoring function node.

The disclosed read-write serial interface bus communication controller with SPI interface comprises: a communication assembly, which includes the bus included both of a serial asynchronous receiver-transmitter and a connected buffer process unit 2 and the logic control part included a control unit, an error counting and processing circuit, and a carrier detection multi-address access conflict monitor circuit; a data buffer process unit 1; an interface controller; a SPI interface; and an EFPROM. This invention simplifies control logic for CPU to introduce convenience for user and provider.

The invention discloses a wireless sensor network monitoring system, comprising: a Bluetooth coordinator and a plurality of portable information collectors, wherein the Bluetooth coordinator and the plurality of portable information collectors communicate wirelessly via Bluetooth. As the invention uses the Bluetooth coordinator as the data exchange center and the parent node, and the plurality ofportable information collectors as the child nodes, the power on-site construction personnel can carry around the portable information collectors to carry out the judgment of the on-site power environment, and the Bluetooth coordinator which is also portable can be installed on each position of the power site along with the construction personnel, thereby effectively improving the effectiveness ofcommunication between the construction personnel as well as the versatility of the networking, and overcoming the problem of limited communication distance in complex environments at the same time. In addition, as the Bluetooth wireless sensor network has a simple protocol and is easy to develop, the requirements of convenient operation for the power field construction personnel can be met.

The invention discloses an indoor and outdoor seamless joint navigation method which comprises the following steps: binding a license plate number through an outdoor navigation system on a mobile terminal, transmitting bound information to a server through a network, and recording a mobile terminal device number and the license plate number; when a vehicle arrives at an entrance of a parking lot, a license plate number is recognized through scanning equipment on a turn-around system, and recognized information is transmitted through a network and sent to the server; the server judges whether the vehicle enters the parking lot or exits the parking lot according to the information that the turn-around system enters and exits the scanning equipment, and sends the information of the parking space to the mobile terminal; and when the mobile terminal receives the push message, the outdoor navigation system is switched to the indoor navigation system, and the vehicle warehouse-in and warehouse-out data is transmitted to the indoor navigation system. According to the invention, automatic switching can be carried out, when a vehicle arrives at a parking lot, the turn-around system carries out license plate scanning through the scanning device and is automatically switched to the indoor map system, and the problem of connection of the indoor map system and the outdoor map system is solved.

The invention discloses a solid-state memory based on an ultra-wide digital interface. All solid-state memory devices with digital interfaces in the current market are low in transmission rate. A UWDI (ultra-wide digital interface) control module realizes data transmission between a memory device and a host through a UWDI bus. A data distribution module is used for distributing data received by the UWDI control module to a memory medium control module. A solid-state memory medium control module comprises a plurality of solid-state memory medium control channels, wherein each solid-state memory medium control channel corresponds to one solid-state memory medium. A data collection module is used for collecting data flow transmitted by the channels of the solid-state memory medium control module to the UWDI control module. Different from existing standard digital interfaces such as an ATA (advanced technology attachment) and an SCSI (small computer system interface), the UWDI has the advantages of high width, high transmission rate, simple protocol, easiness in implementation and the like.

The invention discloses an inter-satellite network broadcast communication high-throughput network coding and transmission method. The method comprises the steps of S1, if current time is not a sending time slot of a satellite, indicating that the satellite is in a receiving state and initializing a forwarding counter C for each frame of data locally, wherein the C is an element of a set {1, 2, 3,...}; S2, for the received frame of which forwarding counter is not 0 in the sending time slot, generating a coding packet based on all data by taking a frame as a unit through random linear network coding, and forwarding the coding packet and the current frame of data; S3, for the frame forwarded in the sending time slot, subtracting 1 by the corresponding counter; S4, carrying out linear equations calculation on the received same frame of data, thereby obtaining a complete frame of data; and S5 finishing the method. According to the method, the problem that according to a traditional flooding protocol, the network throughput is reduced due to the fact a great number of redundant data packets are sent is solved, the fact that the traditional flooding protocol is characterized in no feedback link and simple protocol is maintained, and direct upgrading can be carried out based on software of the traditional flooding protocol.

The invention discloses a bus-mounted consumption terminal data transmission system based on zigbee. A bus-mounted consumption terminal is connected with a bus lot monitor in zigbee wireless mode through a data transmission unit on board unit (OBU). The bus lot monitor builds a wireless network through a coordinator function module of the zigbee and is connected with a microcomputer device of a bus lot data processing center in universal serial bus (USB) or recommended standard (RS) 485 interface mode. The bus lot data processing center is connected with a microcomputer device of a bus company settlement management center through internet. In addition, the data transmission unit comprises a central processing unit micro controller unit (MCU), a data storing unit connected with an MCU and a zigbee radio frequency unit connected with the MCU. The bus-mounted consumption terminal data transmission system based on the zigbee replaces a traditional manual collecting method, saves labor cost, reduces possibility of manual errors, well solves the problems that efficiency is low and error is easy to make in a manual collecting process, and simultaneously well solves the problems of high device cost and later-period operation cost of a general packet radio service (GPRS) method.

The invention provides a cellular mobile communication network and packet data network protection method. The method includes the following steps that: a boundary line is defined between a cellular mobile communication network and a packet data network; a security boundary is defined inside a dedicated terminal in the cellular mobile communication network; the count value and enhanced count valueof a packet data network convergence protocol data packet are acquired, wherein the enhanced count value is logically a high bit of the count value, after the count value reaches a predetermined threshold value, the enhanced count value is increased by a predetermined numerical value; and security processing is performed on the above transmitted packet data network convergence protocol data packetaccording to the count value, the enhanced count value, and a security protection key. Compared with a network layer security protocol, the data link layer security protocol used in the method of thepresent invention has the advantages of simplicity, convenience in implementation, low computation and protocol overhead, and can better meet high security requirements especially in the field of information security.

The invention relates to the technical field of communication software, in particular to a node-based instant message intercommunication method and system. The method comprises the steps that a request application node and a target application node send a registration application to a management node, and the management node issues a trusted certificate after registering the request application node and the target application node; the request application node sends an addressing request sent by the request client to the management node; the management node searches in the station and feeds back the searched gateway address to the request application node; the request application node searches the target application node according to the fed-back gateway address, communicates with the target application node through the trusted certificate, and a search condition sent by the client is sent to the target application node; the target application node searches a target user according to the search condition and feeds back the communication information of the target user to the request application node; and the request application node feeds back the received target user communicationinformation to the request client.

The invention provides a dynamic image code generating method and device. A display unit set including at least one display unit is used to display a dynamic image code. The generating method comprises that original information is coded into one or multiple continuous basic information according to a preset original information coding rule, each basic information is coded into one or multiple continuous signals according to a preset basic information coding rule, and according to the coded signals, the display modes of the display unit set are switched in preset frequency. The original information is displayed via dynamic continuous image codes. The dynamic image codes are simple in images, can be adjusted flexibly according to requirements, occupy small space, can fully utilize corner areas of a display screen for display, and has low requirements for the display screen; even low-cost LEDs can be used for display; and protocols are simple, information carrying by the image codes can be changed flexibility, and the enforcement difficulty and cost are lower.