79results about How to "Various communication methods" patented technology

The invention provides an embedded-type real-time intelligent traffic monitoring system based on video streaming technique, which mainly comprises two DSP modules, an ARM module and an FPGA logic control module. The two DSP modules perform the high-speed real-time processing of video images. The ARM module controls the operating mode of the two DSP modules and transmits an image processing result to the peripheral equipment via a peripheral interface. The FPGA logic control module supports the coordination control of the system and the cache storage of the images. The embedded-type real-time intelligent traffic monitoring system integrates the functions of the DSP, the ARM and the FPGA, has the advantages of high computing capacity, various interfaces and flexible communication mode, is applicable to various complex traffic conditions, and has wide application range.

The invention provides a civil unmanned aerial vehicle (UAV) air traffic control system and a method for realizing flight control on unmanned aerial vehicles by adopting the same, relates to the field of civil unmanned aerial vehicle air traffic control and solves the problems that no civil unmanned aerial vehicle air traffic control system is provided, and an existing communication network is small in coverage range. The civil unmanned aerial vehicle air traffic control system comprises a background management controller, a local base station and node units; each of the node units is correspondingly mounted on one unmanned aerial vehicle, corresponds to an ID and is used for identifying an identity of the corresponding unmanned aerial vehicle; the node units are used for communicating with controllers on the unmanned aerial vehicles in real time, and packing and transmitting unmanned aerial vehicle flight data to the local base station; the local base station is used for performing line planning and scheduling on the unmanned aerial vehicle corresponding to each of the node units within a management radius of the local base station and is also used for communicating with the background management controller; the background management controller is used for verifying the flight authorities of all the unmanned aerial vehicles. The civil unmanned aerial vehicle air traffic control system and the method provided by the invention are mainly used for management and control on the unmanned aerial vehicles.

The invention relates to a power system communication server based on WEB mass communication modes and a control method thereof, comprising a CPU, a synchronous dynamic random access memory which is connected with the CPU and used for running programs and storing real time data, a memory which is connected with the CPU and used for storing data, an Ethernet module and an expanded Ethernet module which are connected with the CPU and used or network communication, a serial port module and an expanded serial port module which are connected with the CPU and used for serial communication, and a watchdog RTC Fram module which is connected with the CPU. The communication server uses WEB mode to set configuration and browse transmission data information, communicates with a master station in a serial way according to department issued CDT, national standard 101 and other power communication regulations, communicates with a dispatch master station in an Ethernet way according to department issued 104 power communication regulation, communicates with a relay protection device and various intelligent devices on a substation in an Ethernet way by RS485 and RS232, collects the data thereof and monitors the running thereof, and communicates with a substation local background in an Ethernet way according to 103 power communication regulation.

The invention discloses an audio frequency communication system. A signal processing device is in communication connection with an audio frequency device through an audio frequency interface to achieve the effect that the audio frequency interface of the audio frequency device and the signal processing device conduct data interaction with each other to finish data communication. According to the technical scheme, most of existing portable terminals are respectively provided with an audio frequency interface, the standards of channels of the audio frequency interfaces are basically uniform, therefore, the audio frequency communication system is more convenient to use and better in universality compared with data communication through a USB interface or an SD interface or an SIM interface on the audio frequency device, and can improve the satisfaction of user experience; meanwhile, the signal processing device not only can conduct data interaction with the audio frequency device through the audio frequency interface, but also can transmit data transmitted by the audio frequency device through a corresponding data interface to other communication terminals in communication with the audio frequency device after converting the data, the signal processing device can serve as an interface conversion device between the audio frequency device and the other communication terminals in communication with the audio frequency device, and therefore the communication mode between the audio frequency device and the other communication terminals is further enriched.

The invention discloses a four meters integrated information acquisition converter. The four meters integrated information acquisition converter comprises a CPU module, and a 485 communication module, an MBUS communication module, a carrier wave interface, a micropower wireless interface, a storage circuit, an infrared interface, a lamp plate and a power supply module which are connected with the CPU module; and the CPU module is connected to a host acquisition concentrator, a gas meter, a water meter, an ammeter and a heating meter. After the host acquisition concentrator sends a data uploading instruction to the four meters integrated information acquisition converter, the CPU module acquires data from metering instruments, converts the received data, and sends the converted data to the host acquisition concentrator. The four meters integrated information acquisition converter supports RS-485, MBUS, a micropower wireless mode, carrier wave and other communication modes, can couple with almost all metering instruments under all standard protocols, and also realizes acquisition of data of different standard metering instruments with multiple different formats through uploading data by multiple means. The four meters integrated information acquisition converter is suitable for four meters integration engineering construction and reconstruction .

The invention discloses a multi-bus communication system of a cross modulation instrument, which comprises an industrial personal computer, a FPGA (Field Programmable Gate Array) expansion board, a first information source module, a second information source module, a power amplification module and a receiver module, wherein a PC104 bus is expanded by adopting the FPGA, and the conversion of the timing sequences of hardware buses is realized through programming so as to achieve the purposes of multi-bus communication and the communication between an industrial control board and all peripheral modules. In the communication system disclosed by the invention, the communication means of a bus of the industrial control board is expanded; the number of IO (Input / Output) ports of the control board is increased; the speed and the throughput of the bus are improved; and the peripheral equipment of equipment is independently controlled, so that the CPU (Central Processing Unit) resource is not occupied; and moreover, the parallel control of the equipment can be realized.

The invention discloses fault detection equipment and a fault detection method. The equipment comprises an emulator, a flash memory chip and a programmable logic device, wherein the emulator is used for downloading a first test program; the flash memory chip is connected to the emulator and is used for storing the first test program; and the programmable logic device is connected to the flash memory chip. When the fault detection equipment is connected to a digital processing device, the fault detection equipment reads and operates the first test program from the flash memory chip through the programmable logic device, and acquires a base pin work state of the digital processing device so as to determine whether the digital processing device has a fault according to the base pin work state. By using the technical scheme provided in the invention, a problem that a fault detection process of the digital processing device is complex in the prior art is solved.

The invention relates to an urban traffic signal control system which comprises: a center control subsystem, a monitoring computer, a GIS geographic information subsystem, a traffic monitoring control interface, a data communication controller, traffic signal machines, a traffic signal acquisition device and a traffic signal display device. The center control subsystem is respectively connected with the monitoring computer, the GIS geographic information subsystem, the traffic monitoring control interface and the data communication controller. The data communication controller is connected with the traffic signal machines through a communication module. The traffic signal machines are respectively connected with the traffic signal acquisition device and the traffic signal display device. Compared to the prior art, the system has advantages of various communication modes, easy setting and the like.

The invention relates to a passenger flow counting device based on infrared photoelectric technology, wherein the passenger flow counting device is capable of excluding objects. When the distance between a front object and a rear object is longer than or equal to 1 centimeter, the objects can be recognized. The passenger flow counting device comprises infrared transmitters, two infrared receivers, a microprocessor, a clock, a storage and a data output module, the two infrared receivers receive infrared rays transmitted by the infrared transmitters respectively to form two infrared rays, the infrared rays are blocked up when people or the objects pass the space among the transmitters and the receivers, the movement direction, the movement speed and the widths of the objects and the distance between the objects are calculated by judging the blocking time sequence of the infrared rays, counting is not performed when the widths of the objects are smaller than a preset width value, the count is 1 when the widths of the objects are larger than the preset width value and no distance is reserved between the objects, and the count is 2 when the widths of the objects are larger than the preset width value and the distance is reserved between the objects. Precision, sensitivity and response speed of an infrared counter can be effectively improved, and the passenger flow counting device is applicable to counting other non-transparent objects.

The invention relates to the technical field of communication. The invention discloses a method and device for calling a vehicle owner, a server, a client, a terminal and a storage medium. A vehicle owner user can use the system according to actual needs; simply setting vehicle anchor position, a real-time geographic position of a calling user is matched with a vehicle anchor position set by a vehicle owner user; according to the invention, the vehicle owner only receives the call of the calling user in the reasonable geographical range of the vehicle, and the calling user outside the reasonable range of the vehicle cannot contact or disturb the vehicle owner even if the license plate or identity code information of the vehicle owner is obtained, so that the privacy of the vehicle owner iseffectively prevented from being leaked and disturbed. And meanwhile, for the same parking event, the reserved information is automatically replied, so that the vehicle owner can be prevented from being repeatedly called by a plurality of reasonable calling users at high frequency. And meanwhile, in a motion state, a communication session with a vehicle owner can be realized in time, and a call mode in vehicle operation can be constructed.

The invention discloses an evolutionary game based mode selection and spectrum allocation mechanism in a heterogeneous full-duplex D2D cellular network, and belongs to the field of cellular network optimization. In a full-duplex D2D cellular network, communication users are randomly distributed, the users can communicate with other communication devices at random, and communication spectrum is reasonably allocated, under the condition that the service quality of base station users and D2D users is guaranteed, the communication capacity of the network is maximized, and network congestion is reduced. According to the invention, the communication model of the heterogeneous full-duplex D2D cellular network is randomized and formulated. Firstly, the network as a whole is quantitatively distributed by use of random distribution, the communication performance of the communication users is analyzed by use of a cumulative distribution function, then the whole network is subjected to evolution analysis by use of an evolutionary game approach, the communication mode is selected, and finally, the overall throughput of the network is maximized.

The invention relates to an urban parking guidance system. The urban parking guidance system includes a centralized control center, parking lot acquisition subsystems and information distribution subsystems; the centralized control center is connected with the parking lot acquisition subsystems and the information distribution subsystems respectively; the centralized control center manages parking space number information of parking lots of an entire city, and processes parking space data transmitted by each parking lot acquisition subsystem and stores the parking space data of each parking lot in a database, and transmits the parking space data of each parking lot to the information distribution subsystems; and after receiving the information of the centralized control center, the information distribution subsystems distribute the information. Compared with the prior art, the urban parking guidance system of the invention is advantageous in centralized control and management of entrance numbers of all the parking lots of the entire city, no need for wiring and diversified communication of an acquisition system, elimination of errors in the total number of parking spaces in the parking lots caused by misjudgment and the like.

The invention relates to the technical field of garage equipment, in particular to a multifunctional garage human-computer interface, which comprises a shell, a display screen, keys and a circuit board, wherein the display screen and the keys are arranged in the shell; the circuit board is arranged in the shell and connected with the display screen and the keys electrically; a singlechip, a buzzer, a communication interface, a card reading module, a radio frequency remote control module and an information word module are arranged on the circuit board; and the communication interface, the card reading module, the radio frequency remote control module, the information word module and the buzzer are connected with the singlechip respectively. By the multifunctional garage human-computer interface, relevant information can be displayed and prompted comprehensively; card swiping can be carried out; a communication mode is diversified; and the human-computer interface can communicate with an upper computer or a central control room.

The invention provides an ETC radio frequency identification onboard unit (OBU) supporting communication with a mobile terminal. The OBU comprises a user card supporting an electronic wallet and an ETC radio frequency identification. The ETC radio frequency identification comprises a processor, an OBU safe module connected with the processor, a Bluetooth receiving and sending device, an NFC tag, a 5.8GHz microwave communication module and a high frequency read and write module communicating with the user card. Compared with the prior, the OBU supporting communication with a mobile terminal is advantageous in that the OBU has more communication ports and communication modes; an ETC user can have better user experience; it is convenient for user to apply for and install an ETC radio frequency identification and to charge; business pressure of sales networks is reduced; and operation cost is reduced.

The invention discloses an intelligent control system for a mixed-type network, and the system comprises an environment sensing node based on a wifi and 2.4G radio frequency communication mode, a controlled node, a security and protection node, a central controller, a mobile data network, user portable mobile equipment, a router, a smart phone, and a tablet PC. The communication module carries out the data and instruction interaction with the central controller through a wireless network. The user portable mobile equipment is distributed at all positions of the system. When a user is located at each position, the whole system can be controlled. The system is complete in communication modes, is quick and convenient in networking, is high in communication efficiency, is quick and convenient in installation, is diversified in control mode, improves the compatibility and stability of an intelligent IOT (Internet of Things) control system, and enlarges the application range.

The invention discloses an aircraft station simulation training practical operation system. The aircraft station simulation training practical operation system is mainly composed of a microcomputer system, a signal conditioning plate, a function signal generator and a power supply system. The signal conditioning plate comprises a single-chip microcomputer system, a digital I / O, a data collector, a matrix switch, an analog output and a power switching circuit, wherein the digital I / O, the data collector, the matrix switch, the analog output and the power switching circuit are connected with the single-chip microcomputer system. The microcomputer system is in communication connection with the single-chip microcomputer system of the signal conditioning plate through an RS-232 bus. The microcomputer system is in communication connection with the function signal generator through a USB bus. The signal conditioning plate and the function signal generator are in output connection with a front panel interface circuit of simulated real equipment. The aircraft station simulation training practical operation system can assist in completing simulation training of a certain type of ultra-short wave radio set, and has the advantages of being low in invested cost, good in training effect and beneficial to improving the understanding ability of trainees on the working principle of the ultra-short wave radio set and the troubleshooting ability of the trainees on the ultra-short wave radio set.

A device and a method for using a satellite network to establish a private local network are provided, which uses GRE tunnel to facilitate the satellite network and a ground local network to communicate with each other. The device comprises a master station unit (1), a satellite receiving and emitting unit (2), a proximal router (4), and an auxiliary unit (3); wherein, the proximal satellite receiving and emitting unit (2) of one end carries on satellite signal transmission to the remote satellite receiving and emitting unit (2) of the other end, the proximal router (4) is connected with the proximal satellite receiving and emitting unit (2) through a network, and at the same time, the proximal satellite receiving and emitting unit (2) is connected with the auxiliary unit (3) through a cable and a distributor. The invention has the advantages that the satellite network and the ground local network (5) are well integrated together, thus enabling the satellite network to be used flexibly, and leading the satellite network to be used in the currently most popular internet based on IP. The invention greatly improves the compatibility of the satellite network, and the technology used in the internet can also be used in the satellite network.

The invention discloses a maritime communication system based on integration of three networks, which is characterized by comprising an internet transmission part, a communication network transmissionpart and an IoT (Internet of Things) transmission part, wherein the internet transmission part comprises ashore terminal equipment, a data processing center and a data transceiving control storage center which are arranged ashore; the communication network transmission part comprises a satellite and a shortwave base station; and the IoT transmission part comprises shipborne terminal equipment andmonitoring and sensing equipment which are arranged on a ship. The invention further discloses a method for carrying out maritime communication by adopting the maritime communication system based onintegration of three networks. By adopting the technical scheme, the maritime communication system and communication method based on integration of three networks, which are disclosed by the invention, can greatly enrich communication modes and communication contents between the sea and the shore, and not only implement interconnection between the shore and the ship, but also can enable a user ashore to master various conditions on the ship in real time in detail, such as production and living conditions of seamen and a safety condition of marine products in a fish hold.

The invention discloses a method for information processing and electronic equipment. The method is applied to first electronic equipment which can communicate with second electronic equipment, and the method includes: obtaining first parameter information related with first prompt information in a process of outputting the first prompt information to a first user through a first output unit of the first electronic equipment; judging whether the first parameter information satisfies a preset condition; when the first parameter information satisfies the preset condition, generating a first enabled instruction corresponding to a first communication event, the first communication event being a communication event occurring between the first electronic equipment and the second electronic equipment; and executing the first enabled instruction, and enabling the second electronic equipment to obtain second information corresponding to the first communication event, thereby enhancing the prompt strength of prompt information, and improving user experience.

The invention discloses a hardware and software system construction method of a portable mobile ad hoc network of an Android area. The system comprises a hardware unit for realizing a wireless link of the area, a network system construction method for distributed topological structure sensing and routing, and a software platform used for transmitting mobile data of the area. The whole system adopts an Android intelligent terminal as a system platform, the automatic communication function is expanded by adding a wireless data transmission module, and a data communication peer-to-peer network service environment without center or server based on the portable mobile ad hoc network is constructed on the premise of not affecting the existing communication function of the Android equipment and without depending on the network infrastructures or mobile communication operator services. The system can provide digital communication, data transmission sharing, user management, network management and other basic service functions. The system supports many forms, such as unicast, multicast, broadcast and so on. The node access is free, the functions are equivalent, the hardware is cheap, and the syste has good versatility, scalability and portability.

The invention discloses a method of sending and receiving short messages in a trunking communication system, wherein, a short message center module receives short messages sent by end users and sends short message delivering orders to a trunking short message service module according to group short message accessing signals in short messages; a trunking short message service module receives and analyzes short message delivering orders, and then sends short message delivering request signals to a short message entity and sends short message delivering responses back to a short message center module; a short message entity receives and analyzes the short message delivering request signals and sends information requests to a dispatching assignment register; and the short message entity sends short message notification short messages to a client according to information request responses sent back. Meanwhile, the invention also discloses a system of sending and receiving short messages in a trunking communication system which comprises a short message center module, a group short message service module, a short message entity, a dispatching assignment register and a client. The invention overcomes the technical shortage that end users can not send short messages to dispatching agent clients under the prior art.

The invention provides a message transmission method and system, a sending end device and a receiving end device. The method comprises the steps that the sending end device obtains a message structure used for sending message content and a data channel used for transmitting a message corresponding to the message structure through a vehicle and mobile phone interconnection communication protocol, according to a type of to-be-sent message content; the sending end device writes the message content into a data part of the message structure, thereby obtaining a target message; and the sending end device sends a target message to the receiving end device through the data channel of the vehicle and mobile phone interconnection communication protocol, so the receiving end device obtains the message content from the received target message and carries out corresponding processing according to the message content. According to the technical scheme of the invention, communication between a vehicular device and a mobile terminal can be realized through Bluetooth and the vehicle and mobile phone interconnection communication protocol, so the communication modes between the vehicular device and the mobile terminal are enriched, and the transmission of more message content between the vehicular device and the mobile terminal is enriched.

The invention discloses a data switching system based on the radio frequency identification technique, comprising a communication terminal, a core network, a core service server, a tag unit and a reader unit, wherein, the tag unit comprises a transmitting and receiving unit, a state logic control unit, a memory unit and an input-output interface unit; the reader unit comprises a radio frequency unit, a processor unit and a memory unit. The data switching system based on the radio frequency identification technique of the invention flexibly adopts the communication mode of a tag and combines the terminal to conveniently operate and control so as to ensure that the data switch is flexible and practical. Different from the prior data switching system, the invention enriches the communication modes.

The invention relates to the technical field of intelligent building control, in particular to an indoor unit system of a building interphone. An indoor unit is designed into a separate structure which comprises a base and mobile terminal equipment. Compared with a conventional indoor unit, the indoor unit system has the advantages of convenience in installation, flexibility in use, low cost, easiness in maintenance, multiple purposes and the like.

The invention relates to a method for establishing a WWW with dynamic characteristic, belonging to the technical field of the internet, in particular to the field of the application of the large-scale distributed technology to the internet, and aiming at solving the problems existing in the prior internet. The method for establishing the WWW with dynamic characteristic is characterized in that a domain mechanism based on all internet computing equipment is established; the hyperlink is defined for new domain names so that the domain names form the association based on data; the data address description based on the dynamic WWW is established; the transmission is carried out according to the sequence of the formation of the dynamic WWW data address level; the free direct interactive mode based on the dynamic WWW domain name is established; and a complex network system based on the dynamic WWW is established to realize the dynamic WWW. Because the new characteristic WWW is established, and the related data are associated through a new hyperlink, the way of using the internet by the common user is made to be perfect on the mechanism, and the user can efficiently and completely issue and obtain various forms of high-quality data under the adequate support of the intellectual resources in an updated internet system.

The invention discloses a control system of a flexible welding robot for an automobile body. The control system comprises a programmable logic controller (PLC), a display module, a key panel, a driving control module, a welding parameter detection module, a CAN communication module and an upper computer, wherein the PLC is connected with the display module, the key panel, the driving control module and the welding parameter detection control module and is also connected with a CAN communication bus through the CAN communication module, and the CAN communication bus is connected with the uppercomputer. The control system further comprises a wireless communication module, a watchdog module, a storage module and an alarm module, wherein the alarm module is connected with the PLC. According to the control system of the flexible welding robot, various communication modes are achieved, and thus, monitoring by workers is facilitated; a GPS positioning module is additionally arranged, so thatthe current position of the robot can be conveniently positioned; and moreover, the control system adopts the modular design, thereby being low in cost and convenient to develop and having good application prospects.

The invention discloses an intersection dense information acquisition system for traffic police command. The system comprises a processor and a terminal device, a port of the processor is connected with an image acquisition module and a communication module, and the terminal device is provided with an image display module, a touch display screen and a communication module. According to the invention, the image acquisition module can acquire the vehicle congestion condition of an intersection in real time, and transmits the condition to the terminal device via the processor; the terminal devicecan display the vehicle congestion condition of the intersection in a humanized manner through a touch display screen, so that traffic police can conveniently adjust and formulate the vehicle passingtime; vehicle congestion can be alleviated, the traffic police command efficiency is improved, each intersection is provided with the processor, each processor is provided with an independent IP, thecommunication module used by the processor has a lot of communication modes such as Lora, local area network, Wifi and 5G, the safety and applicability are high, and the communication failure rate isreduced to the minimum.

The invention discloses an embedded logic controller. The embedded logic controller comprises a main control board and a core board connected through a GPIO interface, wherein the main control board is connected with a sensor, a static memory, a dynamic memory, an SD card, input expansion boards and input expansion boards and provided with a communication interface. A battery is arranged in the main control board. The core board is an ARM processor. The input expansion board is a 16-point input expansion board provided with 16 on-off input channels for connecting with peripheral input equipment. The output expansion board is a 16-point output expansion board provided with 16 on-off output channels for connecting with peripheral output equipment. The sum of the number of the 16-point input expansion board and the 16-point output expansion board is less than or equal to 8. The embedded logic controller has beneficial effects that the embedded logic controller can support larger program capacity, larger data capacity, richer communication mode and higher processing speed through the reasonable architecture and rich hardware resources and can meet the intelligent control requirement of an expressway tunnel.

The invention relates to the technical field of communication and discloses a method and device for calling a vehicle owner, a server, a client, a terminal and a storage medium. A vehicle owner user can simply sets vehicle anchor position according to actual needs; a real-time geographic position of a calling user is matched with a vehicle anchor position set by a vehicle owner user, the vehicle owner only receives the call of the calling user in the reasonable geographical range of the vehicle, the calling user outside the reasonable range of the vehicle cannot contact or disturb the vehicleowner even if the license plate or identity code information of the vehicle owner is obtained, and therefore the privacy of the vehicle owner is effectively prevented from being leaked and disturbed.And meanwhile, for the same parking event, the reserved information is automatically replied, so that the vehicle owner can be prevented from being repeatedly called by a plurality of reasonable calling users at high frequency. And meanwhile, in a motion state, an instant communication session with a vehicle owner can be realized, and a call mode in vehicle operation can be constructed.

The invention discloses a measurement and control merging unit of an electric energy router, and belongs to the sensing field of the electric power energy internet. The measurement and control merging unit of the electric energy router comprises a highly-integrated measurement control and communication system, a power supply system, a shell and a heat dissipation system. The measurement and control merging unit provided by the invention is a measurement and control system which is capable of collecting and analyzing valuable low-voltage power distributing network power data at a high speed and deploying and networking at a low cost within a large region, is light in weight and convenient to install and maintain in a later period, and capable of realizing mutual dispatching and information interaction between regions of the energy internet by overcoming certain environment weather conditions; and compared with a synchronous phasor measurement apparatus of a main substation of 110kV or above, the measurement and control merging unit has the advantages of lower cost, more integrated measurement and control system, higher phase angle resolution, frequency precision and sampling speed, more diversified communication properties, extremely low cost, easy installation, capability of solving the problem of high cost input in wide deploying of the low-voltage power distribution network and a user side, and high reliability and information interactivity.