33results about How to "Consumption balance" patented technology

The invention discloses a Zigbee network tree-shaped routing method for neighbor table mode interaction. The method uses neighbor tables on the basis of an existing tree-shaped routing algorithm and interacts with neighbor nodes for neighbor table information. When a node performs routing, routing hops can be effectively reduced, the network delay is reduced, the total network energy consumption is reduced, and the forwarded data amount of nodes of different network depth can be balanced, so that the node energy consumption is balanced and the network life cycle is prolonged.

The invention provides a cell detection method, comprising the following steps: S1, counting deep characteristics of sample data and generating a depth detection anchor network; 2, training that depthdetection anchor network; S3, detecting the data to be detected by using the depth detection anchor network which has completed the training. Compared with the current cell detection method, the celldetection method provided by the invention has better detection accuracy and detection speed, and realizes the balance between the detection speed and the consumption of computational resources.

The present invention provides a method for managing wireless devices in a wireless medical body area network MBAN, comprising: based on all wireless devices of said MBAN, by sharing identification data, battery status and communication between wireless devices of said wireless MBAN performance to configure the MBAN, wherein the MBAN includes at least one sensor and at least one hub; provides at least short-range communication and long-range communication to a plurality of wireless devices; and configures a first wireless device of the wireless MBAN based on battery status and communication performance become the master device. Thereafter, the method includes: if the battery status and communication performance of the main device drops below a second wireless device of the wireless MBAN, configuring the second wireless device as a new main device; and The battery status and communication capabilities of the wireless devices of the wireless MBAN, routing data transmissions within the wireless MBAN.

The present invention provides a cell detection method, comprising the following steps: S1: counting the deep features of sample data and generating a deep detection anchor network; S2: training the deep detection anchor network; S3: using the trained deep detection anchor network to detect to-be-detected data. Compared with the current cell detection method, the cell detection method provided by the present invention has better detection accuracy and detection speed, and achieves a balance between detection speed and computing resource consumption.

The invention discloses a synergizing method for biogas slurry consumption of a mulberry field and an orchard in winter. The method is characterized in that biogas slurry can be consumed in balance bythe mulberry field and the orchard in the whole stage from late autumn to early spring, and thus biogas slurry produced by biogas fermentation treatment of excrements of livestock on a large-scale pig farm and the like can be effectively returned to the farmland and utilized as the resource of manure; 2000-4000kg of vegetables can be harvested from the mulberry field and the orchard per mu, and 800-2000 Yuan of income is increased from the mulberry field and the orchard per mu; and meanwhile, adverse influences such as soil hardening, caused by the use of biogas slurry, can be effectively prevented, and as a result, the fertility level of a soil tilling layer is stably improved; and the comprehensive synergizing effect is good.

The invention provides a data source connection state monitoring device and method. The device comprises a data source state monitor and a data source state manager. The data source state manager comprises a data source state warehouse, a start-stop device and a refreshing module; a plurality of state memories are arranged in the data source state warehouse, and each state memory stores the connection state of one type of data source; the start-stop device creates a state refreshing task for each type of data source and puts the state refreshing task into a delay queue; the refreshing module controls each state refreshing task in the queue to periodically refresh the data source connection state and update the data source connection state in the corresponding state memory; and when the monitor monitors a refreshing request of the data source state monitoring client, forwarding the data source connection state returned by the data source state warehouse to the data source state monitoring client. According to the scheme, the multi-data-source connection state is monitored on the premise that system resource consumption is reduced as much as possible, and balance between real-time performance and resource consumption is achieved.

The invention discloses a low energy consumption diesel engine tail gas treatment system suitable for high exhaust flow rate, which includes a controller and two alternately used regeneration systems, one system includes an air supply unit, an ignition unit, a three-way air channel and wrapped with The packaging unit of DPF, the fuel supply unit is connected to the ignition unit, the first temperature sensor and the second temperature sensor are arranged on the upstream and downstream of the DPF, the pressure sensor and the differential pressure sensor are connected to the DPF, and the outlet of the air supply unit is equipped with a mass flow sensor; another system includes auxiliary air channel, auxiliary ignition unit, auxiliary three-way air channel and auxiliary packaging unit wrapped with auxiliary DPF. The auxiliary ignition unit is connected with a fuel supply unit, and the upstream and downstream of the auxiliary DPF are provided with a third The temperature sensor and the fourth temperature sensor are connected to the auxiliary DPF with an auxiliary pressure sensor and an auxiliary differential pressure sensor. The present invention enables regeneration at high exhaust flow rates with minimal energy consumption.

The invention discloses a safety start method of a tree topology in an IPv6 over low power wireless personal area network (6LoWPAN), belonging to the filed of networks. The method comprises mutual authentication and trust assessment. Before node deployment, a network deployer allocates a unique identification (ID) and key for each node, so that mutual authentication can be achieved between two nodes if only the ID of the opposite party is known; and when a child node selects father nodes to access a network, trust assessment is carried out on the candidate father nodes, and a utility value method in a multi-target objective decision technology is utilized to comprehensively assess three indexes, namely the number of hops from the father node to a base station, consumed energy and time delay, so as to select an optimal father node. According to the method, node energy is saved, mutual authentication can be carried out by only IDs of the nodes and a small amount of information exchange but without the participation of a base station, and attack of malicious node can be resisted. Due to the introduction of trust assessment, the sideness solely depending on energy or hops is avoided, the energy consumption of the whole network is balanced, and the life of the network is prolonged, thus the method can be applied to scenes with small amount of node movement.

The provided data inquiry method in sensor network comprises: determining the energy message for every sensor node in the network, and selecting the node with the maximal residual energy as the cluster center, as well as the sensor node for non-cluster center; the non-cluster center sensor sends self-collected data to corresponding cluster center, and enters sleeping state; the cluster node receives inquiry request and obtains the objective data for report. This invention reduces total energy consumption and improves service time of the sensor network.

The invention relates to a multi-point cooperative packet transmission method for a wireless multi-hop network. The method mainly includes two steps of source node packet transmission and multi-point cooperative packet transmission. First, the source node broadcasts the data packet to the neighbor nodes; then, the cluster head node is selected from the nodes that receive the data packet, and the cluster head node organizes the node that successfully receives the data packet to transfer the data packet The packet is sent to the receiving node that is closer to the destination node, and then a new cluster head node is selected from the nodes that newly receive the data packet, and this process is iterated until the destination node receives the data packet. The method reduces the data transmission delay by utilizing the broadcast characteristic of the wireless channel and multi-point coordinated transmission.

The invention discloses a data communication method of a wireless sensor network, which can solve the problems of the traditional cluster routing protocol that the energy consumption of the cluster head is high, and the network bottleneck can be easily formed, thereby making the energy consumption of nodes uneven and shortening the network lifetime. The data communication method comprises the following steps: providing a wireless sensor network topology; designing a method for establishing clusters in a network clustering process; defining gateway nodes used for receiving and transmitting data between adjacent clusters; designing a data transmission routing process, wherein a cluster head node is only responsible for finding a data transmission path, and actual data are transmitted along the found path through the gateway nodes, thereby realizing the separation of path finding and data transmission and reducing the load of the cluster head node; and designing an in-cluster routing method used for transmitting the data to a designated gateway node. The data communication method designed in the invention can effectively reduce the energy consumption, balance the network load, and prolong the lifetime of the network. Therefore, the data communication method is applicable to large-scale wireless sensor networks.

The invention provides a multi-metric quantity route discovery and establishment method based on AODV (Ad hoc On-Demand Distance Vector Routing). According to the method, nodes in a wireless network are required to maintain the number of hops and three metric quantities: node residual energy, an energy loss rate and node density; the four metric quantities are packaged into a data structure; in a route discovery stage, the metric quantities in an RREQ (route request) and the metric quantities maintained by the nodes are compared and updated according to rules stated by the method; and further an optimum route path is discovered and established. According to the method, through introduction of the reasonable metric quantities in a route establishment stage, the problem that the service quality of the wireless network is seriously influenced due to the fact that the node energy consumption is imbalanced and information channels are congested is effectively avoided. The communication load balance and communication efficiency of links are effectively improved, the stability of the links is improved, the node energy consumption is balanced, and the service life of the wireless network is prolonged.

The invention discloses a method for prolonging the service life of a Bluetooth temperature sensor. The method comprises the following steps: step 1, calculating an evaluation function of a Bluetooth temperature and humidity sensor; 2, selecting a Bluetooth temperature and humidity sensor as a node for vehicle data collection; step 3, constructing an optimal network route; step 4, a Bluetooth temperature and humidity sensor selected by using the evaluation function in the step 1 is used to construct a path for industrial vehicle data collection; and step 5, recording a final vehicle path and a network route after the nodes of the Bluetooth temperature and humidity sensor are traversed, according to the method, in the sensor network, the directed betweenness centrality, the neighbor nodes and the hop distance of the nodes are used as evaluation factors, the high-load sensor nodes are selected as convergence nodes, the energy consumption among the nodes is balanced, and the energy consumption is reduced. The problem of energy holes is relieved, it is guaranteed that energy consumption of the Bluetooth temperature and humidity sensor is more balanced, and the service life of the Bluetooth temperature and humidity sensor network is prolonged.

The invention discloses a DPF temperature control system of a low energy consumption exhaust gas treatment system, comprising a change rate limiter, a feedforward controller, a PID controller, a PWM calculation module and a protection module. The change rate limiter calculates a temperature command value, and the feedforward The controller calculates the feedforward control command according to the exhaust gas temperature Exh_T, the ambient temperature Ambient_T, the fresh air mass flow rate Fresh_MF, the exhaust mass flow rate Exh_MF and the temperature command value, the PID controller calculates the feedback control command, and the PWM calculation module calculates the feedforward control command according to the feedback control command and feedforward The calculated value obtained by adding the control command and the fuel pressure value are calculated to obtain the PWM duty cycle value. The protection module calculates the PWM duty cycle command used to control the fuel solenoid valve according to the PWM duty cycle value and the fresh air mass flow Fresh_MF. The present invention does not rely on engine operating state information and is very suitable for retrofitting of in-use vehicles.

The present invention provides a data packet classification method and device. The method includes: receiving a data packet to be classified, and determining an access control list (ACL) for classifying the data packet to be classified; according to the preset matching method to which the ACL belongs, Match the data packet to be classified with the ACL, and classify the data packet to be classified according to the matching result; wherein, the preset matching method to which the ACL belongs is determined according to the following method: when the number of filtering rules of the ACL is less than or equal to When the first preset value is determined, the ACL is determined to be matched using a linear matching algorithm; when the number of filtering rules of the ACL is greater than the first preset value, a packet classification algorithm of a non-linear matching algorithm is used for matching. The method provided by the invention can improve the classification efficiency of data packets, and can take into account the memory consumption while improving the classification speed, so that the matching speed and the memory consumption can be more balanced.

The invention discloses an ignition unit and a low energy consumption diesel engine exhaust gas treatment system based on the ignition unit, comprising an ignition housing with an inlet and an outlet, a nozzle pipe, a first swing check valve for avoiding backflow of high-temperature exhaust gas, and an air inlet The cavity of the flame outlet and the glow plug used for ignition, the nozzle pipe is connected with the peripheral fuel supply unit through the fuel solenoid valve and extends into the cavity through the first swing check valve, and the glow plug is fixed on the ignition shell body and extend into the cavity. In the present invention, fresh air and fuel are mixed in the ignition unit and then ignited. The three-way air passage receives the high-temperature mixed airflow and the exhaust airflow, and the formed total airflow enters the DPF and oxidizes and removes accumulated soot; it reduces the impact on PGM in DOC and DPF Coating requirements, and reduce the sensitivity of the system to the sulfur content in fuel, while the regeneration of low exhaust gas flow reduces energy consumption; improves fuel economy, making it suitable for in-use car modification applications.

The invention provides a data source connection state monitoring device and method, the device includes a data source state listener and a data source state manager, the data source state manager includes a data source state warehouse, a start-stop device and a refresh module; the data source state There are multiple state stores in the warehouse, and each state store stores the connection state of a type of data source; the start-stop device creates a state refresh task for each type of data source and puts it into the delay queue; the refresh module controls each state in the queue The refresh task periodically refreshes the data source connection status and updates it in the corresponding status memory; when the listener listens to the refresh request from the data source status monitoring client, it forwards the data source connection status returned by the data source status warehouse to the data source Status monitoring client. This solution realizes the monitoring of the connection status of multiple data sources on the premise of reducing the consumption of system resources as much as possible, and realizes the balance between real-time performance and resource consumption.