166results about How to "Guaranteed priority" patented technology

The invention discloses a method for vehicle cooperative control at a non-signaled intersection in a vehicle networking environment. By adopting the method, cooperative control on vehicles on a main road and a branch road is realized on the basis of ensuring priority pass of the vehicles on the main road. Speed keeping lines and clearance search lines are arranged on the main road and the branch road respectively. When a vehicle on the main road reaches the range of a center controller, the center controller makes a driving strategy for the vehicle according to the principle of priority pass of the vehicles on the main road to enable the vehicle to run at the speed Vmax set for the main road behind the speed keeping line until the vehicle crosses the intersection. When a vehicle on the branch road reaches the clearance search line, the vehicle on the branch road sends a clearance search request to the center controller, the center controller makes a driving strategy for the vehicle according to the acquired information, and the vehicle on the branch road runs through the intersection according to the driving strategy. The method of the invention not only is helpful to the development and application of the vehicle networking technology, but also has significant implications for the improvement of traffic efficiency and safety at non-signaled intersections.

The invention concerns a local combined telephone and an alarm system comprising a central base communicating through two-way radio channel, according to a multiple access communication protocol, with telephone stations and detectors adapted to detect an emergency situation. The base transmits at regular intervals of less than 10 minutes, scanning messages addressed to the detectors and determines whether the detectors are operating, depending on whether it receives clearance messages from the detectors.

The invention discloses an innovation resource information integration service platform which are mainly used for acquisition, statistics, excavation, analysis and other technologies of innovation resources, information integration and database establishing of a service terminal and butt joint of the innovation resources and service resources through platform software development; By adopting the innovation resource information integration service platform, the innovation resources can be subjected to batch acquisition and integration by applying a technical means, personalized information service can be provided for the government, enterprises, scientific research institutions, specialists, other organizations and high-end talents, meanwhile a platform technology supports interconnection and interworking and collaborative innovation performed by various organizations and the talents, and information, the talents and other resource support are provided for efficient innovation of the organizations (especially the enterprises).

A system for planning a special route of a special vehicle based on V2I (Vehicle to Infrastructure) comprises a detection unit, a collection unit and a planning unit. The detection unit detects whether or not an emergency pass request sent by the special vehicle is received; when the emergency pass request sent by the special vehicle is received, the collection unit collects movement state data of the special vehicle connected with a road test unit in a V2I communication mode and a plurality of vehicles within a preset range in the moving direction of the special vehicle, wherein the movement state data comprises latitude and longitude information and speed information; and the planning unit plans driving lanes and driving speeds of the special vehicle and the plurality of vehicles, and sends planning information to corresponding vehicles. After a preset period, that whether or not the special vehicle and the plurality of vehicles run on the planned lanes and at the planed speeds is monitored. The beneficial effects are that the method and system for planning the special route of the special vehicle based on V2I can provide service of priority pass for the special vehicle within an area, and also can record vehicles which obstruct the special vehicle.

The invention discloses a packet scheduling method in high speed downlink packet access HSDPA network. The method includes: A. according to channel quality indication CQI information of priority queuing which is reported by presidial user equipment UE in current transmission time interval TTI, downlink average speed of PQ packet data transmitted to UE, data bulk of PQ packet data cache stored in RNC and scheduling priority index for PQ which is arranged by RNC, a Node B obtains PQ priority; B. the PQ priority sequence is different UE distribution radio resource, the Node B transmites packet data to UE through distributed radio resource. The method not only guaranteens system throughput and UE impartiality, but also guaranteens packet data QoS level and UE priority.

The invention discloses an orthogonal frequency division multiplexing (OFDM) passive optical network (PON), belonging to the technical field of optical communication. The network of the invention comprises an optical line terminal (OLT) and an optical network unit (ONU), wherein, the OLT is connected with the ONU in an annular networking manner or a tree networking manner. The network is characterized by sequentially connecting a photoelectric conversion module, an OLT digital signal uplink processing module and an optical transmission module, and an OLT control module is connected with the OLT digital signal uplink processing module to form an uplink module of the OLT; and meanwhile, the uplink module of the OLT further comprises a power divider, an optical multiplexer and an OLT analog signal uplink processing module, wherein, the OLT analog signal uplink processing module is connected with the OLT digital signal uplink processing module in parallel by the power divider and the optical multiplexer unit for processing various business data. The passive optical network has the characteristics of low cost, high flexibility and good transmission performance.

The invention relates to an industrial wireless WIA-PA network and time sensitive network conversion method and apparatus, and belongs to the technical field of industrial networks. The apparatus consists of a TSN switch, a WIA-PA/TSN converter, a WIA-PA router and a WIA-PA field device. In the method, the WIA-PA/TSN converter is designed, two manners of MAC address addressing and IPv6 address addressing are supported, the mapping between a WIA-PA data stream and a TSN data stream is completed, the support of a data transmission priority is maintained, and the protocol conversion and interconnection between WIA-PA and TSN are effectively achieved; and furthermore, the invention further provides a transmission delay guarantee method between the WIA-PA and the TSN, the data can arrive withina specified deadline by allocating communication resources such as transmission time slots and the like, so that the instantaneity and certainty of the transmission of the data between the WIA-PA/TSNis ensured.

The invention discloses a data transmission method and device based on the priority level as well as network equipment. The method comprises: when a message to be sent is obtained, determining a threshold interval in which the current queue length of the buffer queue for caching messages to be sent is located; according to the determined threshold interval and the corresponding relationship between the threshold interval built in advance and the allowable priority level of the message allowed to enter the buffer queue, determining the allowable priority level of the message which is allowed to enter the buffer queue for caching messages to be sent; and according to the situation that whether the priority level of the obtained message belongs to the determined allowable priority level, determining whether the obtained message is added into the buffer queue. The data is guaranteed to transmit according to the priority level only,by one buffer queue and the set threshold interval, large system cost caused by polling a plurality of priority levels can be avoided, and system performance is improved.

The present invention provides a setting and updating method for backoff parameters in a random access procedure. The method comprises: in the initialization of the random access procedure of UE, according to the service type of the UE, setting the backoff parameters to be initial values of the corresponding service type, wherein the initial value corresponding to a trunking group call service is the maximum; in the random access response received by the UE, if a backoff indicator subheader is included, and the service type is not a trucking group call service, updating the backoff parameters of the UE according to the content of the backoff parameter indicator subheader; and otherwise, not updating the backoff parameters of the UE. Via the method of the present invention, the backoff parameter value corresponding to the trunking group call service is enabled to be the maximum; and thereby the interval for establishing random access of the trunking group call service is the minimum, ensuring the priority and accomplishing the access as soon as possible.

The invention discloses a terminal service processing method which comprises the following steps that: corresponding priorities are preset for each contact person stored in a terminal; when a communication service is received, the communication service is processed according to the corresponding priority of a contact person in the communication service. The invention also discloses a communication device which comprises: a storage module used to store contact persons and corresponding priority information set by the priority setting module; a priority setting module used to set priorities for the contact persons stored in the communication device; a processing module used to process a communication service according to the priority that the contact person corresponds to in the communication service when the communication service is received. The terminal service processing method and the communication device realize to select to process the communication services according to the difference of the priorities of the contact persons, ensure that the user makes prior processing to the communication services of important or key contact persons, and also improve the experience of the user to the ongoing service.

The invention discloses a dynamic bandwidth allocation algorithm applied to an OFDM-PON (Orthogonal Frequency Division Multiplexing-Passive Optical Network) system and belongs to optical fiber communication systems. The invention utilizes an interruption application response method to realize the bandwidth request and allocation; a plurality of subcarriers in the system are divided into three parts, namely, a communication channel control part, an ONU (Optical Network Unit) default bandwidth part and a part stored in a dynamic pool; when the load on the link is light, each ONU compares respective local flow with local threshold value so as to decide whether an interruption application for extra bandwidth is started; and when the load on the link is heavy, an OLT (Optical Line Terminal) allocates the surplus subcarriers based on the requiring ratio of the ONUs under the condition that the rated bandwidth of the ONUs is met firstly, so as to realize dynamic allocation. The invention ensures low time delay and low package loss rate of a high priority service, also performs bandwidth allocation as required, and can meet the equal allocation between the ONUs and the equal-level priority service when the load of link service flow is heavy.

The invention discloses a primary frequency modulation control system and method applied to a thermal power generating unit and based on safe and stable operation. The system comprises a first subtractor module and a high-low limit alarm module, wherein a unit rate limited afterload instruction value and a load measured value are accessed to an input end of the first substractor module respectively, and a difference between the unit rate limited afterload instruction value and the load measured value is sent to the high-low limit alarm module; a high limit exceeding alarm signal and a low limit exceeding alarm signal of the high-low limit alarm module are accessed to set ends of a first switch selector and a second switch selector respectively; the first switch selector and the second switch selector are connected to a block increase end and a block decrease end of a turbine PID controller respectively. According to the system and the method, the priority of primary frequency modulation actions during grid frequency fluctuation can be effectively guaranteed, coordinated operation of AGC (automatic gain control) and primary frequency modulation of the unit can be improved, the frequency fluctuation of a grid system is reduced, and accordingly, safe and effective operation of electrical equipment and power equipment of users is guaranteed.

The invention discloses a block chain transaction out-block method based on a user level, and belongs to the field of Internet. The method comprises the following steps: S1, creating grade informationof user transaction; S2: constructing and submitting the transaction; S3: putting the transaction submitted in a period of time into the transaction pool and waiting for triggering the out-of-block condition; S4: After the block-out condition is triggered, the transaction grade is dynamically adjusted and sorted; S5: acquiring a high-level transaction encapsulation block in the transaction pool;S6: Transaction consensus is uplinked. The invention utilizes the transaction pool in each node of the block chain network and the transaction level submitted by the user to ensure the priority levelof the transaction of the user, and has the characteristic of writing the block first.

A control network management system for relaying first and second wireless communications comprises a first repeater having a packet control means for writing priority information in a header of communication packet data of the first wireless communication, as received and transmitting the communication packet data with a hash value of the header, added thereto, a second repeater having a packet control means for zero-clearing priority information in a header of communication packet data of the second wireless communication, as received, or changing the priority information to a predetermined value before transmitting the communication packet data with a hash value of the header, added thereto, and a third repeater having a priority control means for applying priority control to the header of the communication packet data received from the first repeater or the second repeater, on the basis of priority information, thereby transmitting the communication packet data to a control system.

The invention relates to a token bucket traffic shaping method suitable for a fusion network, and belongs to the technical field of data management in fusion networks. By means of the method, through the combination of a token bucket algorithm and self-similar network traffic better conforming to reality, the selection of parameters of token buckets is determined according to the QoS mapping rule between different domains and the relative priority of service, and therefore the parameters of the token buckets are dynamically adjusted according to the cache sharing strategy based on the priority so as to improve the QoS of the whole network service. By means of the design method, the priority of the service can be ensured, the pressure of a device of the fusion network is reduced, and the aim of improving the QoS of service of the whole fusion network is achieved.

The embodiment of the invention discloses a continuous speech recognition result evaluation method based on character and word mixing, and the method comprises the steps of generating an R-T matching plane with character and word mixing according to an input speech recognition result sequence and a reference sequence; carrying out matching in the R-T plane according to a DP algorithm, wherein, local matching paths adopt a plurality of matching paths based on the character and word mixing and adopt a variety of path scoring functions; and carrying out path backtracking, thereby obtaining the best matching result and doing statistics of speech recognition performance-related information. The invention further discloses a continuous speech recognition result evaluation device based on the character and word mixing, and the utilization of the embodiment of the invention can effectively reduce false errors in the recognition result evaluation and effectively improve the word-based continuous speech recognition result evaluation precision.

The invention relates to a method for optimizing the crossing of a two-way road and a one-way road with a reverse bus transportation lane to conduct optimization layout on an inlet lane of the crossing and detecting facilities. Meanwhile, when phase position timing of traffic lights is optimized; for signal timing, the green light signal is not allocated to the bus transportation lane when no vehicle arrives at the bus transportation lane, it can be ensured that two periods are available for buses to selectively pass through the crossing in one cycle when the vehicles arrive at the bus transportation lane, the priority of the buses is ensured to the maximum, and meanwhile the green light time of the crossing can be fully used so that the traffic capacity of other inlet lanes can be improved. A vehicle detector transmits the information of arrival of the vehicles to a signal controlling machine or an intelligent communication terminal, the steering information of the buses is transmitted to the signal controlling machine through the communication technology, so that the signal light timing is changed, and the signal time allocation is optimized.

The invention relates to an end-to-end delay upper bound assessment method based on retransmission feedback for a wireless sensor network, and belongs to the technical field of wireless sensor networks. The method comprises the following steps: S1, determining a composition form of sensor data streams and a transmission process of the sensor data streams in a network; S2, building a data stream retransmission feedback model according to network link quality, and analyzing the service capability of the network specific to all the data streams; S3, performing priority scheduling on original data streams and retransmitted data streams, and determining a service bandwidth allocated to the original data streams; S4, analyzing delay composition of sensor input data streams in an entire end-to-end network system to obtain components of fixed delay and variable delay; S5, calculating network end-to-end variable delay caused by the network service capability; and S6, acquiring the delay upper bound of an end-to-end network of data streams to be analyzed. Through adoption of the method, the timeliness of industrial wireless communications is ensured; quantitative analysis can be performed on network end-to-end communication delay at the beginning of network construction; and control of the timeliness of the industrial wireless communications is facilitated.

The invention discloses a method for planting corn and cover crops, belongs to the field of crop planting, and particularly relates to a cultivating method of inter-annual crop rotation of corn and the cover crops. The technical problems of reduction of soil quality and non-point source pollution caused by large-scale use of chemical fertilizers, pesticides and herbicides in the corn planting process are solved. The cultivating method comprises the steps of 1, soil preparation in spring, 2, ridging and basal dressing, 3, sowing of corn, 4, sowing of the cover crops on ridges, 5, planting of the cover crops in furrows, 6, harvest of corn, 7, crushing of residual bodies of the cover crops and plowing in the spring of a next year, 8, ridging in the next year, and 9, field management in a second year. The cover crops such as gramineae are planted in the furrows, so that the field space is fully used, and the growth of weeds is avoided. The cover crops such as gramineae are planted in the furrows the biological yield is high, the absorption and utilization capacity for N in deeper layers of soil are good, and the protection effect for water resources and ecological environment is good.