65results about How to "Easy communication" patented technology

Methods of communication in a wireless communication network having a plurality of connected objects, a gateway and a central server. These elements communicate with one another via messages sent and received on frequency channels. A channel is reserved for the periodic transmission of tag messages by the gateways, thereby allowing the organization and optimization of the network usage and communication time.

The invention discloses a gas extraction pipe network parameter monitoring system and a leaking point accurate positioning method. The gas extraction pipe network parameter monitoring system comprises a monitoring substation, optical communication equipment and a monitoring center, wherein the monitoring substation is arranged at a key node position of a gas extraction pipe network, and is mainly responsible for acquiring signals including pressure, flow and the like and monitoring in real time; when a pipeline leaks, audible and visual alarm is carried out; and the monitoring center is used for communicating with the monitoring substation through the optical communication equipment, acquiring data from the monitoring substation and carrying out leaking point positioning when leakage occurs. With the adoption of a sensor arranged on a gas extraction pipeline, various parameter signals in the pipeline are converted into an electric signal and the signal is processed through a PLC (Programmable Logic Controller) of the monitoring substation; the signal is transmitted by utilizing the optical communication equipment; an upper computer of a monitoring center is used for processing the data acquired by the monitoring substation; and when the leakage occurs, the upper computer displays a leaking signal to a user and a leaking point is positioned; and the user sends out a control instruction through the upper computer so that remote control of equipment is realized.

The invention discloses an underwater blue-green optical communication system with an adjustable rate and a variable distance, and the system is of a transmitting-receiving integrated structure, and comprises a transmitting light source, a modulation circuit, a condensing lens, a receiving optical assembly, and a signal processing assembly. The emission light source comprises an LD light source and an LED array light source formed by combining a plurality of LED light sources. Each LED light source is controlled by an independent switch; the modulation circuit controls the emission light source to output optical signals of different types or powers; the condensing lens is connected with the emission light source through a spatial light path, and converges and collimates light signals output by the emission light source; optical signals sent by the neighbor nodes are received and converged; the receiving optical assembly is arranged on the side, away from the condensing lens, of the emitting light source; the signal processing assembly converts the optical signal into an electric signal and recovers original data; and according to the invention, short-distance and long-distance light energy requirements and low-rate and high-rate variable requirements are met, and alignment of two communication parties can be effectively realized.

The invention relates to a medium-range communication connection system and an implementation method and belongs to the smart home communication field. The medium-range communication connection system includes upper-level action equipment and lower-level execution equipment; the upper-level action equipment includes an upper-level functional module used for monitoring the working triggering condition of the lower-level execution equipment and an infrared transmitting module which is connected with the upper-level functional module; and the lower-level execution equipment includes a lower-level functional module used for executing functional actions and an infrared receiving module which is connected with the lower-level functional module. The implementation method of the medium-range communication connection system is realized based on the above system. With the medium-range communication connection system and implementation method of the invention adopted, communication between smart home devices is not dependent on the network of a wireless gateway, and therefore, it can be ensured that an entire smart home system can operate normally when a wireless network is lost.

The invention relates to a digital film reading seminar system which is characterized by comprising a server, a participant platform module, a foreground processing module and a background management module. The participant platform module, the foreground processing module and the background management module are connected with the server through the network. The server is provided with a first database which stores digital sections and related information, participant commend information and speech and presentation manuscripts and a second database which stores film reading seminar information. Multiple participants, speakers and film reading seminar managers perform transmission and exchange of the digital sections and the related information, the participant commend information and/or the film reading seminar information with the server through the participant platform module, the foreground processing module and the background management module respectively. Easy switching of the presentation manuscripts, the digital sections and interaction with the participants in the speech of the speakers can be realized, and the smoother discussion on the content of the film reading seminar can be obtained between the participants and the speakers and between the participants.

The embodiment of the invention discloses a signal conversion device and a conversion method. The signal conversion device is used for being connected with a machine core board of an ultrahigh definition television and a display capable of supporting an HDMI signal, and comprises a signal receiving module, a signal conversion module and a CPU, wherein the signal receiving module is connected with the machine core board and used for receiving an initial signal output by the machine core board; the initial signal is an LVDS (low-voltage differential signaling) signal or a first V-BY-ONE signal; the signal conversion module is connected with the signal receiving module and the display separately, and is used for converting the initial signal into the HDMI signal according to an instruction and outputting the HDMI signal to the display; the CPU is in communication connection with the signal conversion module and used for transmitting the instruction to the signal conversion module. Through the signal conversion device, the machine core boards of different ultrahigh definition televisions can be matched with different displays, and the display still can normally display and output, so that research and development persons can debug the machine core boars of various ultrahigh definition televisions based on the displays capable of supporting the standard HDMI signal, the research and development efficiency is improved and the production cost is reduced.

The invention discloses a double DSP control method for a photovoltaic grid-connected inverter and belongs to the technical field of solar photovoltaic grid-connected power generation. According to the technical scheme of the invention, both a photovoltaic side and a power grid side have a DSP; the control circuits of the two DSPs are electrically isolated and realize the control of the power grid side and the control of the photovoltaic side respectively; and the two DSPs communicates in a pulse width detection-based mode. According to the technical scheme, the conventional single-DSP control is replaced by double DSP control, so the rear-time control and monitoring of controlled objects are realized, the control accuracy is improved, the distributed control of the photovoltaic side and the power grid side is realized, the modular design of the control programs of on both sides is promoted, the design of the control programs is simplified, the system complexity is reduced, and the system reliability is improved. The pulse width detection-based communication mode has the advantages of simplicity, easy implementation, high anti-interference performance and the like.

The invention relates to an intelligent illuminating system control circuit, in particular to a scenic spot bus control circuit which can simply the communication mode, reduce the bus power consumption and prolong the transmission distance, aiming at the solving the problem of the working failure of the intelligent illuminating system, which is resulted from the unstable voltage of the bus. A first resistor, a third resistor and a voltage stabilizing tube of the scenic spot bus control circuit are connected in series between a bus port and a bus grounding end; the positive electrode of the voltage stabilizing tube is connected with the bus grounding end; a first capacitor is connected with two ends of the third resistor; a signal receiving end is connected with the negative electrode of the voltage stabilizing tube; the collecting electrode of a high-power triode is connected with the bus port, the emitting electrode is connected with the bus grounding end, and the base electrode; a second resistor is connected in series between the base electrode of the high-power triode and a bus signal sending controlling end; the positive electrode of a fast-recovery diode is connected with the bus port; the positive electrode of a polar capacitor is connected with the negative electrode of the fast-recovery diode and the DC power supply of the bus; and the negative electrode of polar capacitor is connected with the bus grounding end.

The invention relates to a networking method of inter-station communication under hybrid multi-terminal direct-current topology and a communication monitoring mechanism generated corresponding to the method. According to the method, SDH/MSTP equipment in stations is adopted as intermediate connection equipment for realizing inter-station communication equipment interconnection, so that Ethernet private network business can be used; a connection mode according to which in-station control protection devices are connected into switches through a 100M Ethernet so as to be networked is adopted; and the SDH/MSTP equipment is connected into an SDH network. The function of the inter-station communication is to exchange control instructions and operating state information between a traditional current source converter station and a voltage source type converter station; the inter-station communication adopts a double-network mutually standby connection mode; a plurality of stations composed of the hybrid topology adopt a point-to-point connection mode; any one station can obtain the connection channels of the other stations; the connection channels are optical fiber channels; and optical cables are laid along underground cables or submarine cables between each stations.

The present invention discloses a mobile communication terminal for listening to video output and peripheral sound simultaneously and control method. The characteristics of this invention is that the front end of the amplification part of the handset junction device for mobile communication terminal is supplemented with audio frequency mixing part, and to collect the external voice using the microphone of the mobile communication terminal. Moreover, to connect the above mentioned audio signals of the microphone to the above mentioned audio frequency mixing part selectively by the control of the controlling part, if the external voice size according to the manual operation indication or the above mentioned microphone is above the fixed size, mixing the external voice into the reproductive audio signal through the audio frequency mixing part, thus, this can reduce the fatalness because of the external outbursting condition and facilitate the communication for users with people.

The invention provides a flight simulator network communication method based on a dynamic interface. The condition of the flight simulator network communication method based on the dynamic interface is that each system of the flight simulator performs data communication through an Ethernet. Each interface that requires communication is standardized in the same way through adopting a prescribed dynamic interface configuration and data communication network configuration; a sending end sends all data to the Ethernet using a format in a multicast mode; a receiving end receives all the data; eachsystem selects and processes required data items according to a dynamic interface configuration file; and the data of the configuration file is stored as a text file with a uniform format. The flightsimulator network communication method based on the dynamic interface is beneficial to increasing and modification of the interface, the maintenance of the system and the protection of the simulator.

The invention relates to an urban-rural ring network interval switch condensation remote monitoring system, which comprises a condensation sensor module. The condensation sensor module is equipped with two pairs of condensation alarm contacts A and B and a pair of condensation action contacts C; the condensation alarm contact A is connected with a remote communication acquisition module; the condensation alarm contact B is connected with an alarm module and an alarm lamp module; the condensation action contact C is connected with an intermediate relay; and the action contact of the intermediate relay is connected with an operation power circuit of an interval switch heating and dehumidification device. The urban-rural ring network interval switch condensation remote monitoring system has the following advantages that phenomena such as switch miss trip, device abnormality or direct grounding caused by condensation can be effectively prevented, the professional management level of the urban-rural ring network interval switch is improved, and the power supply reliability is enhanced.

The invention discloses a self-adaptive single-wire asynchronous communication circuit, a communication method and a communication device. The self-adaptive single-wire asynchronous communication circuit comprises a sending end and a receiving end, and the sending end is composed of a sending data generation module and a voltage-current conversion module; and the receiving end consists of a current-voltage conversion module and a received data processing module. The sending data generation module is used for generating signal sequences with different widths; the voltage-current conversion module converts the level signal generated by the sending data generation module into a current signal and sends out the current signal; the current-voltage conversion module converts the current into a corresponding voltage; and the received data processing module processes the received data so as to realize asynchronous communication between the level power supplies. The invention aims to solve theproblem that digital logic interfaces with different power supply voltages in a multi-power supply system cannot directly communicate with each other, and realizes mutual data sending or receiving ofa low power supply voltage interface and a high power supply voltage interface.