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 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 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.

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 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 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 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 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.