29 results about "Broadcasting" patented technology

The invention discloses an alliance chain construction method, a transaction method and a distributed supply chain system, and the method comprises the steps: constructing an alliance chain by takingeach distributor and supplier as nodes according to a command initiated by an online travel agent; establishing a whole network public channel of the alliance chain, and enabling every two nodes in the alliance chain to establish a private channel; wherein the distributors and the suppliers are distributors and suppliers of the wine travel commodities; the online travel agent provides an infrastructure of an alliance chain, and the infrastructure of the alliance chain is used for sorting and packaging transactions into blocks, broadcasting the blocks to all nodes in a channel and sorting nodesproviding consensus services, and providing CA certificate services for all the nodes in the alliance chain. According to the method, the alliance chain is constructed by taking the distributors andthe suppliers as the nodes, so that the commodity information can be quickly transmitted to each node, and decentralized commodity distribution and commodity price change information transmission arerealized.

The invention discloses an ultrasound thickness measuring method and a device based on broadband frequency-modulation and receiving compensation. Thee method structures an intermittent type broadband linear frequency-modulation ultrasound signal by using the method of linear frequency-modulation; broadcasting time of the intermittent type broadband linear frequency-modulation ultrasound signal at the inner part of a workpiece is inverted according to frequency parameters of emitted and received frequency-modulation signals; workpiece thickness is obtained by combining a preset sound speed. The device comprises a handhold type control, a display and an array type ultrasound wave probe component, wherein the array type ultrasound wave probe component is composed of a plurality of ultrasound transducers capable of stimulating the broadband linear frequency-modulation ultrasound wave, wherein one ultrasound transducer is arranged in the middle, and the rest ultrasound transducers are arranged at four sides. The ultrasound thickness measuring method and the device can realize the flaw detection at a near field and a remote field; and the invention is low in energy loss, small in volume, high in precision and strong in antijamming capability; and furthermore, the ultrasound thickness measuring method and the device can adapt various noise environments.

Allocation of a wireless communications system channel resource is managed by utilizing traffic segment allocation. This is realized by partitioning the channel resource into an assignment channel and a traffic channel in a fixed manner. The assignment channel includes assignment segments and the traffic channel includes traffic segments. The traffic segment is the basic traffic channel resource unit used to transport traffic data and has a prescribed finite time interval and bandwidth. Each traffic segment is associated with a so-called assignment segment in a prescribed manner. One or more traffic segments may be associated with a particular assignment segment. A base station broadcasts via an assignment segment which wireless terminal is to use a particular traffic segment. This is realized by transmitting a simply identifier for the particular wireless terminal assigned to the particular traffic segment in the assignment segment. Then, each active wireless terminal monitors all of the received assignment segments to detect any traffic channel assignments. Once a wireless terminal detects its identifier in an assignment segment, it proceeds to receive/transmit the traffic data in the traffic segment associated with the assignment segment including the detected identifier.

A mobile radio communication system which allows stored messages to be broadcasted to any number of destinations in the mobile radio communication system which allows communication of stored messages, such as electronic mails or voice mails is provided. A broadcast group is previously registered in a second database 26, and if a mail having a destination address corresponding to the broadcast group is received, a message is broadcasted to each of members included in the corresponding broadcast group. At this time, replacing the sender's address of the broadcast message with the destination address corresponding to the broadcast group allows the reply message to the broadcast message to be handled as a broadcast message to the same members.

Present invention relates to a dynamic network route emulation system. It contains simulating engine, topology pattern, protocol model, flow rate pattern, track and monitoring pattern and visualization later processing tool etc emulation part, wherein protocol model mainly including QoS route calculation, resource obligate and status information updating three functional modules, featuring that: status information updating having two kinds of periodicity updating and triggering type updating, periodicity updating periodically broadcast updating messages to other node in network according to fixed time interval, triggering type updating triggering updating messages transmitting through detecting link residual band width change delta b. present invention has advantages of 1, capable of realizing status information uncertainty simulating,2, capable of simulating true network dynamic state, 3, in consideration of QoS route requirement, designing out functional modules of resource obligate, permission accessing control, link band width detection and route calculation etc as complementarity to Ns 2 routing protocol model.

The application discloses a wireless transmission method and a wireless transmission device, belonging to the technical field of Internet. The wireless transmission method includes the steps of: broadcasting WiFi configuration information of a first terminal, wherein the WiFi configuration information is used to establish a wireless connection between a second terminal and the first terminal; receiving, by the wireless connection, code stream information transmitted by the second terminal; and transmitting the code stream information to a display device for display. By broadcasting the WiFi configuration information, the application is capable of realizing the wireless connection between the first terminal and the second terminal, and realizing the transmission of the code stream information through the wireless connection.

The invention provides a method for asynchronous positioning of an ultra-wideband sensor network based on compressive sampling. The method comprises the following specific steps that (1) an anchor node 1 broadcasts ultra-wideband pulse 1; (2) other anchor nodes and a TAG node carry out compressive sampling on a received signal to obtain a time of arrival of the pulse 1; (2) the TAG node broadcasts ultra-wideband pulse 2; (4) each anchor node respectively carries out compressive sampling on the received signal, the anchor node 1 records a pulse round-trip time, and other anchor nodes obtain a time of arrival of the pulse 2 and respectively report the two times of arrival to the anchor node 1; and (5) the anchor node 1 computes a coordinate position of the TAG. On one hand, a compressive sampling method is applied to an ultra-wideband sensor network positioning system, and the ultra-wideband pulse is obtained at a sampling rate which is further lower than Nyquist. On the other hand, each node does not need to carry out clock synchronization strictly, the complexity is lower, and a positioning error of an asynchronous ultra-wideband system can be effectively reduced.

The invention provides a method for sending base station information, a system thereof and a base station, wherein, the base station carries the base station attribute information in radio news and sends the information to an access device within the self coverage. In the way, the access device within the coverage of the base station is provided with self base station attribute information, thus the access device can receive accessible base station attribute information of a plurality of base stations when the access device is within the coverage of a plurality of base stations, and selects a most appropriate base station for access according to the base station attribute information of a plurality of base stations.

The invention relates to a transmission method and a transmission system and a transmission device of a multicast/broadcast business MBMS. A high speed sharing data sending entity is arranged in a wireless accession network side and a high speed sharing data receiving entity is arranged in an equipment side of user. The invention is characterized in that the method comprises: the high speed sharing data sending entity of the wireless accession network sends a MBMS data packet to the equipment side of the user in a high speed downstream grouping accession transmission way; the high speed sharing data receiving entity in the equipment side of the user receives the MBMS data packet. The invention embodiment realizes providing transmission of the MBMS data packet in downstream sharing channel in the high speed downstream grouping accession transmission way via arranging the high speed sharing data sending entity in the wireless accession network side and arranging the high speed sharing data receiving entity in the equipment side of the user, so as to improve transmission speed of the MBMS.

The invention provides a system for upgrading wireless terminal software, which comprises a wireless terminal, a personal computer and an access point. The wireless terminal is used for transmitting a basic information packet of wireless terminal software to the access point, receiving a software upgrading packet broadcast by the access point, analyzing to obtain installation files and executing the installation files; the personal computer is used for receiving the basic information packet of the wireless terminal software from the access point, analyzing to obtain basic information of the wireless terminal software, packaging the installation files to form the software upgrading packet, and transmitting the software upgrading packet to the access point; and the access point is used for transmitting the basic information packet of the wireless terminal software to the personal computer and broadcasting the received software upgrading packet. The invention also provides a device and amethod for upgrading the wireless terminal software. Since the access point is adopted to realize the communication between the wireless terminal and the personal computer so as to realize the upgrading of the wireless terminal software, the invention can increase the limit range of the distance between the wireless terminal and the personal computer to hundreds of meters, and the barrier can noteasily exert blockage influence.

A channel scanning method in a multi-channel digital broadcast is provided for enabling a user to identify the broadcast contents of a channel being currently received with accuracy during the channel scan, even though the broadcast contents may change within a channel scanning time period. In one embodiment of the channel scanning method, a receive channel is switched at predetermined intervals (the scanning time period), it is checked whether the broadcast contents of the channel being received currently, after the channel switching, will change within the scanning time period, and a time period for receiving the channel is prolonged, if the broadcast contents will change.

A system for registering pedestrian signal requests comprising receivers configured to broadcast wireless messages, wherein a first field of a first receiver location information message is occupied by a first receiver angle code defined for a first receiver corresponding to a first crosswalk of a traffic intersection and a second field of the first receiver advertisement packet is occupied by a first special code corresponding to the first receiver. An advanced wireless push button is configured to enable a first button to identify any wireless message to be the first receiver message if the first receiver angle code is found in the first field. On activation of the first button the advanced wireless push button transmits the first receiver angle code and, on receipt of the first receiver angle code, first receiver registers a request for a pedestrian signal for the first crosswalk if a walk signal is found off.

An audio signal processing method and a broadcasting output apparatus using the audio signal processing method are provided. The audio signal processing method includes selecting an audio signal to be processed from among a plurality of audio signals in which the same audio data is compressed in different formats, when the plurality of audio signals are received; and processing the selected audio signal. Therefore, it is possible to select a high quality audio signal from among audio signals compressed in various audio formats and to provide a user with the high quality sound.

The invention provides a radio frequency digitized modulation method based on DDS and DSP. The method comprises a step of transmitting digital singals obtained by an A/D converter to the DSP. The DSP calculates instantaneous frequency offset of the DDS according to the maximum sampling value and digital signal instantaneous value which are output by the A/D converter and calculates instantaneous frequency control word of the DDS according to bits, clock frequency and radio frequency carrier frequency of the DDS. The DDS carries out frequency modulation on the radio-frequency signals according to the instantaneous frequency control word, and generates frequency-modulated signals. The method realizes complete digitized radio frequency modulation. Compared with an analogue modulation method, the radio frequency digitized modulation method has simple circuits, good consistency and high reliability, and is particularly suitable for high speed frequency-hopping sending channels such as high speed frequency-hopping broadcasting station, short frequency conversion time and high data transmission rate.

The invention relates to the field of block chains, and discloses a fire-fighting monitoring method based on a block chain, and the method comprises a fire-fighting accident confirmation process, andthe fire-fighting accident confirmation process comprises the following steps: A1) a sensor detecting an abnormality, initiating an alarm, transmitting the alarm to the block chain, enabling a block chain center to initiate broadcasting, and notifying the block chain of the change; A2) carrying out analysis and alarming after receiving the broadcast by related on-duty programs or on-duty personnel; A3) judging whether an alarm is given out or not according to the specific situation, and if so, executing the step A4); otherwise, executing the step A5); A4) starting a fire accident emergency rescue process, and executing the step A6); A5) setting an alarm as a false alarm, setting the alarm on the block chain, executing the step A6); and A6) ending the process. The fire-fighting monitoring method based on the block chain has the following beneficial effects that distributed storage is realized, data is safer, records cannot be changed, falsification is avoided, data is public, the massescan execute supervision rights, and the automation degree is high.

The invention discloses a vehicle positioning method, an automobile, a storage medium and a positioning system. The method comprises the steps of periodically sending a broadcast message which requests to establish a connection; receiving first feedback information of a first marking point responding to the broadcast message, and acquiring first position information contained in the first feedbackinformation; taking the first position information as the self quasi-position information, and carrying out positioning on a pre-stored off-line electronic map according to the quasi-position information; acquiring the movement information of the self movement sensor; and calibrating the positioning information on the off-line electronic map according to the movement information. The pre-stored off-line electronic map is positioned according to the first position information, and the positioning information on the off-line electronic map is calibrated according to the movement information, soas to obtain the quasi-position information of a vehicle in the parking lot, so that a user can quickly confirm the position of the vehicle according to the quasi-position information, the searchingspeed of the vehicle is increased, and the turnover period of vehicles is also shortened.

A method, device and system for requesting and transmitting a service are provided, which belong to the communications field. The method includes: a bidirectional device of the head end receives a service request transmitted by a terminal device and obtains the corresponding service (101); the bidirectional device of the head end judges whether the service can be distributed by an unidirectional device of the head end (102); if yes, the bidirectional device of the head end routes the service to the unidirectional device of the head end, so that the unidirectional device of the head end distributes the service to the terminal device (103); otherwise, the bidirectional device of the head end distributes the service to the terminal device (104). By dispensing with the process of a service server in the prior art in the present invention, the bidirectional device of the head end obtains the service from the service server and judges whether the service data is distributed by the unidirectional device of the head end or is interacted through a bidirectional network (such as Internet Protocol (IP) network), so as to distribute, through utilizing high-bandwidth unidirectional network, heavy traffic IP broadcast and multicast data which originally need to be distributed by the bidirectional network, and therefore the bandwidth pressure on the bidirectional network is mitigated.

The invention discloses a switcher capable of automatically processing news simulcasting time extension. The switcher includes a base, a switcher main body is mounted at the top of the base; a coolingfan is mounted on one side of the power panel; a touch display panel is mounted on one side of the switcher main body; one end of the touch display panel is provided with a signal switching port. Oneside of the signal switching port is provided with a signal decoding port and a video image graph acquisition matching identification port. The invention discloses a switcher capable of automaticallyprocessing news simulcasting time extension. A CCTV1 signal is distributed into one path to be decoded to generate a video image picture; the system uses a video image identification technology. Firstly, news simulcasting corner mark identification and news simulcasting end identification of a fixed area in a news simulcasting picture are collected and stored, broadcasting and ending of news simulcasting are judged according to appearing and disappearing of corner mark and end identification graphs, and therefore complete rebroadcasting of news simulcasting and smooth broadcasting of subsequent programs are guaranteed.

The invention discloses a Bluetooth communication method between a purifier and an intelligent terminal. The Bluetooth communication method comprises the following steps: S1, the purifier emits Bluetooth broadcast to the external while being turned on; S2, the intelligent terminal recognizes the purifier through the Bluetooth broadcast emitted through the purifier and establishes the Bluetooth connection with the purifier; S3, the purifier sends iBeacon data and self-defined data of the purifier to the intelligent terminal through the Bluetooth connection; S4, the intelligent terminal sends control instruction data to the purifier according to the received iBeacon data and the self-defined data; S5, after receiving the control instruction data sent by the intelligent terminal, the purifier analyzes and executes the corresponding control instruction, and returns a successful message instruction to the intelligent terminal after the execution is successful. The regulation on the purifier by the intelligent terminal can be realized through the Bluetooth connection between the purifier and the intelligent terminal, and the long-distance regulation can be realized in the Bluetooth broadcast coverage range.

The invention discloses an evening primrose cultivation method. The evening primrose cultivation method comprises the steps of 1, seed treatment, wherein seeds are soaked with cold water for 1-2 hours, bailed and put into a bag, the bag with the seeds is put at the temperature of -10 DEG C for 24 hours, and then the seeds are taken out and air-dried for standby; 2, sowing, wherein the seeds treated in the step 1 are soaked with water for 5-6 hours, a land mass where the soil is fertile and flood drainage is easy are bedded and ridged to serve as a seedbed with the width of 1.2 meters, the landmass is thoroughly watered one time, after water permeates, 1-5 g/m<2> seeds are uniformly broadcast each time, and after broadcasting is completed, the seeds are covered with a covering with the thickness of 0.2-0.4 centimeter; 3, seedling raising, wherein the seeds in the step 2 grow seedlings, when there are six leaves on each seedling, the spacing between the seedlings is fixed to 4-5 centimeters, and when the seedlings are 50-60 days old, and the heights of the seedlings are 10-15 centimeters, the seedlings are transplanted in field; 4, transplanting, wherein the seedlings in the step 3are transplanted in the field, 1-2 plants are planted in each hole, and the spacing in the rows and spacing between rows are 50 centimeters and 60 centimeters. The evening primrose cultivation methodhas the advantages that seed introduction and domestication cultivation research on evening primrose are conducted, the growing adaptability and the biological characteristics of the evening primroseare improved, and the evening primrose is conveniently popularized, demonstrated and planted especially in the Karst region.

Within the context of the broadcasting of DVB services over an IP network, the trend is to separate the signalling information describing the network and the services offered from the services themselves. The signalling is made available to the terminals via XML files available on HTTP servers. In contrast to this approach, the invention consists of a method of recognition, by a receiver connected to a bidirectional network, of digital services on the bidirectional network, which comprises a step in which the receiver connects to a first stream, a step in which the receiver extracts from said stream information on the location on the network, on the one hand, of streams conveying the content of these services and, on the other hand, of separate streams conveying information describing these services, a step in which the receiver connects to at least some of the streams conveying service description information to obtain information on these services and a step in which the receiver uses this information to construct a list, possibly unitary, of the services available on the network.