36results about How to "Heavy traffic" patented technology

Upon receiving a request for distribution of content data, determination is made whether or not the transmission can be performed, based upon a transmission reservation table. If a user has specified the transmission point in time, a transmission device refers to the reservation state corresponding to the specified point in time, and if available, the transmission device makes a reservation for the specified transmission point in time. Otherwise, the transmission device makes a reservation for an available transmission point in time near the specified point in time, as appropriate. If the user has not specified the transmission point in time, the transmission device transmits the content data at an available point in time, as appropriate. If the transmission device cannot acquire predetermined information, and accordingly cannot determine the transmission point in time, the transmission device generates a schedule indicating that the transmission point in time has not been fixed.

An air-conditioning system capable of reducing traffic of signals and effectively performing control and management operations without causing heavy traffic is obtained. In an air-conditioning system including one or more indoor units 200, one or more outdoor units 100, and a centralized control apparatus 300 and performing signal communication, a transmission relay 400 is provided between a first transmission line 500 to which the one or more outdoor units 100 and the centralized control apparatus 300 are connected and a second transmission line 510 to which one or more indoor units 200 constituting a group are connected, the transmission relay 400 relays a signal between the first transmission line 500 and the connected second transmission line 510. The transmission relay 400 further includes arithmetic processing means 430 for processing data included in the signal transmitted via the connected second transmission line 510, and data storage means 440 for storing data regarding the processing by the arithmetic processing means 430.

A musical tone data communications system having a unit for generating MIDI data of a musical performance by a player, a unit for transmitting the generated MIDI data over a communications network and a unit for receiving the transmitted MIDI data and reproducing musical tones corresponding to the MIDI data in real time.

The invention provides a secure computer platform used for a rail transit. The secure computer platform used for the rail transit comprises a first host device, at least one second host device, a first communication transfer device, at least one second communication transfer device, a first input / output device, at least one second input / output device, an Ethernet and a FlexRay bus, wherein the first input / output device, the second input / output device, the first network connection end of the first communication transfer device and the third network connection end of the second communication transfer device are connected with the FlexRay bus, the second network connection end of the first communication transfer device and the fourth network connection end of the second communication transfer device are connected with the Ethernet, the first host device and the first input / output device are communicated through the Ethernet, and the second host device and the second input / output device are communicated through the Ethernet.

This invention relates to an electronic device or foldable cellular phone set in which boards arranged in two casings bendably connected to each other through a connecting portion are electrically connected to each other by a wireless communication unit using infrared rays or the like. As the wireless communication unit, either an optical method using infrared rays or the like, or a radio wave method using a radio wave can be used.

A method for automatically prompting a detour is disclosed. When a user drives slowly because of heavy traffic, a navigation device automatically prompts the user to tale a detour. The method includes the following steps. First, the navigation device calculates its moving speed according to its navigation signal. Then, the navigation device begins to count the time when the moving speed is smaller than a predetermined speed. When the moving speed is continuously smaller than the predetermined speed and the counted time exceeds a predetermined time, the navigation device prompts a message asking whether to plan a new route.

A transmission method for an uplink transport layer in a mobile communication network provided with a plurality of mobile stations, a plurality of base stations and a radio network controller includes the step of: each base station receiving and decoding a data packet from the mobile station; each base station storing a correctly-decoded data packet into a transmission queue and transmitting the correctly-decoded data packet to the radio network controller; the radio network controller updating reception status in accordance with the received data packets and sending the reception status to the plurality of base stations; and each base station updating the transmission queue in accordance with the received reception status.

A low-impact and modular mobile fuel delivery apparatus is disclosed with a self-propelled unit, a pump unit, and a tank unit. The self-propelled unit is adapted to minimally impact the terrain over which it travels and includes a lift for carrying the pump unit and for moving the pump unit between first and second heights. The pump unit includes a pump for drawing fuel from the tank unit and for supplying fuel to a retractable fuel-delivery hose.

Disclosed is a store management system capable of switching between manned or unmanned sales. During the daytime, a clerk or owner stays in a store to allow a customer, who visits the opened store, to purchase goods which are received in a vending machine or are displayed in a showcase. On the other hand, in a state wherein the store is closed at night to provide no reception or store management of the clerk or owner, the customer is able to select and order goods of the vending machine at the outside of a show window of the store using a display device and an ordering / settlement device installed at the show window. The vending machine is operated to dispense the selected goods as soon as the customer pays for the goods, and the dispensed goods are discharged out of the show window via a goods discharge device, such as a conveyor belt, to thereby be provided to the customer. When the store management system is applied to stores in areas with heavy pedestrian traffic, efficient sales even at night are possible without manned management by a clerk or owner.

To achieve high throughput by using random reservation scheme, when traffic is heavy in multiple access communication system. Further, to suppress signal delay by using both random reservation scheme and random access scheme, when the traffic is low. Scheduling means holds a flag which indicates that there is no allocation of transmission bandwidth for a long packet reservation information stored in long packet reservation queue. The flag is checked, after the allocation of data transmission bandwidth is started. When the flags are set, bandwidths are allocated firstly for long packets, and secondly for short packets. On the other hand, when the flag is not set, bandwidths are allocated firstly for short packets, and secondly for long packets.

A composite cable (4) houses a plurality of leaky coaxial cables having mutually different radiation characteristics. The leaky coaxial cable (2a, 2b) includes therein an inner conductor and an outer conductor, and has a plurality of leakage slots. The plurality of leakage slots have different slot periods relative to the axial direction or arranged in different slot patterns. The digital wireless communication device feeds a high-frequency signal from an end of the composite cable (4) and performs MIMO (multiple-input multiple-output) communication.

The invention discloses a message forwarding method and device, the method is applied to network device, the device comprises an interface mother board, at least one service sub-card and at least oneinterface sub-card, and the service sub-card and the interface sub-card are inserted into the interface mother board; the interface sub-card receives the data message and transmits the data message tothe interface motherboard; and the interface motherboard matches the service identifier corresponding to the data message in a preset drainage rule, and forwards the data message to the service sub-card corresponding to the service identifier. According to the application, the message is sent to the service daughter card only through the interface mother board, and the message is forwarded without the switching network board, so that the forwarding path is shortened, the forwarding efficiency is improved, and the possibility of packet loss and packet error in the forwarding process is reduced. Even if packet loss and packet error occur, a problem port can be easily positioned and maintained. A switching network board is not required, the bandwidth from the interface motherboard to the switching network board is not occupied, and limitation of the bandwidth from the interface motherboard to the switching network board is avoided, so that the service flow which can be processed by the network equipment is larger.

To overcome problems there is to be provided useful information to a user, by counting the number of detected RF tags. As a means for solving the problems an information-providing server 20 according to the present invention acquires IDs of RF tag readers disposed near by the Ferris wheel, when there has been presented to the information providing server 20, as a notifying condition, the condition that a user desires to receive an e-mail on the occasion of the number of persons waiting in line for a Ferris wheel having become seven or less. Then after having acquired the number of plural IDs of the RF tags detected by the RF tag readers having the acquired IDs, the information-providing server 20 acquires attribute information of the RF tags. The information providing server 20 counts the number of IDs of RF tags whose attribute is a person, referring to the attribute information. When the counted result has become seven or less, the information providing server 20 transmits an e-mail notifying to the effect that the congestion has been relieved to the mobile terminal 10.

The invention discloses a rapid bus protection method based on comparison of similarity of contrary motion waveforms. The rapid bus protection method comprises the following steps: respectively reading the three-phase current of a bus and the original data of current at an end close to the bus, of an association circuit; carrying out phase-mode transformation on the three-phase current and the current at the end close to the bus by using a composite modulus method; respectively carrying out S transformation on corresponding initial voltage current motion waves so as to obtain S transformationcomposite matrixes; extracting reverse motion waves, and acquiring Euclidean distances of reverse motion waveform signals after faults of different association circuits; calculating the similarity ofdifferent circuits by using the Euclidean distances of the reverse motion wave signals of different association circuits; establishing protection criterions, and judging internal faults and external faults. By adopting the rapid bus protection method, by analyzing the similarity of waveforms of reverse motion waves of different association circuits after S transformation, internal faults and external faults of a bus area can be recognized, influence of factors such as transition resistance and initial angles of faults are generally overcome, internal faults and external faults of the bus areacan be accurately recognized, good interference resistance can be achieved, and rapid protection recover of buses can be facilitated.

A vehicle-mounted millimeter-wave communication device includes: an acquisition unit for acquiring a relay request that requests relay of communication from a first communication partner, a detection unit for detecting directions of the first communication partner and a second communication partner that are viewed from the vehicle, and a communication control unit for performing control such that, in the case where the relay request is received from the first communication partner and it is possible to communicate with the second communication partner, communication, in which a communication time longer than a communication time set for another direction is set for each of the directions of the first communication partner and the second communication partner, is performed, and communication between the first communication partner and the second communication partner is relayed.

A musical tone data communications system having a unit for generating MIDI data of a musical performance by a player, a unit for transmitting the generated MIDI data over a communications network and a unit for receiving the transmitted MIDI data and reproducing musical tones corresponding to the MIDI data in real time.

A cast concrete durable light fixture design and assembly that will allow in-ground lighting features for roadways, pathways and architectural features providing a simple installation for a drive over in-grade or in-ground lighting fixture. The cast concrete design enables curves and shapes to be manufactured as easily as straight or linear configurations.

An air-conditioning system capable of reducing traffic of signals and effectively performing control and management operations without causing heavy traffic is obtained. In an air-conditioning system including one or more indoor units 200, one or more outdoor units 100, and a centralized control apparatus 300 and performing signal communication, a transmission relay 400 is provided between a first transmission line 500 to which the one or more outdoor units 100 and the centralized control apparatus 300 are connected and a second transmission line 510 to which one or more indoor units 200 constituting a group are connected, the transmission relay 400 relays a signal between the first transmission line 500 and the connected second transmission line 510. The transmission relay 400 further includes arithmetic processing means 430 for processing data included in the signal transmitted via the connected second transmission line 510, and data storage means 440 for storing data regarding the processing by the arithmetic processing means 430.

The invention belongs to the technical field of key management, in particular to an Ad Hoc network key management method. The Ad Hoc network key management method is based on an identity recognition agreement, namely a certifier P does not give away the secret identity of the certifier P and does not prove legality of the public identity of the P to a V, but proves that the V knows the legality of secret identity of the P and the pubic identity of the P by showing that the V has knowledge of the secret identity of the P. No server node is needed, and parity and self-organization are truly achieved. The Ad Hoc network key management method has the advantages of being consistent with the characteristics of the Ad Hoc network, low in communication traffic, high in reliability and strong in robustness.

Some embodiments relate to methods and systems for supporting location detection and navigation technologies. Destination information defining a desired destination can be obtained. A primary database can be queried to identify a historical visit to the destination. The primary database can include historical data for a plurality of historical journeys. The historical visit can include measured location information for the destination.

A vehicle-mounted millimeter-wave communication device includes: an acquisition unit for acquiring a relay request that requests relay of communication from a first communication partner, a detection unit for detecting directions of the first communication partner and a second communication partner that are viewed from the vehicle, and a communication control unit for performing control such that, in the case where the relay request is received from the first communication partner and it is possible to communicate with the second communication partner, communication, in which a communication time longer than a communication time set for another direction is set for each of the directions of the first communication partner and the second communication partner, is performed, and communication between the first communication partner and the second communication partner is relayed.

The invention relates to a supervision of a third generation mobile communication network based load balancing method, which adopts a framework of a distributed system, and puts forward a load balancing algorithm applicable to the supervision of the third generation mobile communication network after improvement aiming at the characteristics of the supervision of the third generation mobile communication network on the basis of a differential equation form of the dynamic condition loaded on a node i. The algorithm saves resources for a supervisory system and simultaneously ensures the stable and effective running of the supervisory system to satisfy the requirements of the supervision of the third generation mobile communication network.

The present invention provides a data transmission method, apparatus and device, and a base station, and relates to the field of communications technologies. The method of the present invention includes: receiving data sent by a radio unit; acquiring a standard identity of the data, where the standard identity is used to identify a standard type of the data; routing the data according to the standard identity of the data; and sending the routed data to a digital unit corresponding to the standard identity of the routed data.

A vehicle-mounted millimeter-wave communication device for performing communication while temporally changing a communication direction by using an antenna unit capable of changing directivity includes: a detection unit configured to detect a direction of a communication partner present around a host vehicle; and a communication control unit configured to perform control such that communication is performed, in which a longer communication time is set for the direction of the communication partner than another direction. The communication control unit preferably performs control that sets a long communication time for the direction of the communication partner in the case where the type of the content of communication with the communication partner is related to control of a vehicle, and in the case where the volume of the communication with the communication partner is not less than a threshold value.

The invention discloses a permanent pavement structure fatigue reliability evaluation method based on parameter bounded distribution. The method comprises the following steps: 1) obtaining variability statistical characteristics of pavement design input parameters; 2) generating a random number conforming to a classic distribution model according to variability statistical characteristics of the obtained pavement design input parameters; (3) judging whether the generated random numbers conform to a specified interval range or not, and screening the random numbers conforming to the range until the random numbers conform to the parameter truncation distribution model of the specified statistical characteristics in the step (1); 4) establishing a limit state equation Z of a pavement structure fatigue index and an accumulated equivalent axis number; (5) judging the state of the structural performance function according to the steps (3) and (4); (6) setting the cycle index N, repeating the steps (2)-(5), and counting the number p of times when Zi is greater than 0 and the number q of times when Zi is less than 0; 7) based on the step 6), drawing a reliability convergence curve of p / (p + q), and judging reliability convergence; and 8) obtaining the reliability of the pavement structure.

A cast concrete durable light fixture design and assembly that will allow in-ground lighting features for roadways, pathways and architectural features providing a simple installation for a drive over in-grade or in-ground lighting fixture. The cast concrete design enables curves and shapes to be manufactured as easily as straight or linear configurations.