7 results about "Transmission network" patented technology

The method is capable of calculating shortest path to meet need of protecting SDH/SONET. The method includes following steps. Collecting attributive information of links connected to each node directly obtains serial numbers of protection entities that each link belongs to. According to standard flood of protocol, collected information is diffused to other nodes. Based on serial numbers of protection entities that each link belongs to, each node is recombined so as to form topological structure of each protection entity in whole network and attributive information of relevant links. Calculation of constraint paths in transmission network is carried out. Based on proper protection types of transmission network, the invention calculates shortest path to meet constraint condition. Since protection topology is calculated in advance, thus the invention reduces numbers of repeated calculation effectively so as to calculate constrained path in real time.

This invention relates to a centralized management system and a method for multi-protocol data and transmission network devices, in which, an intermediate service module sends operation information to a bottom service module, which sends operation information to managed devices to operate on them and judges if the current operation result is normal, if so, it returns back the result to an intermediate layer function module and writes the result in a database, otherwise returns back the alarm information to the intermediate service module and writes the alarm information in the database, the managed device sends state alarm information to the bottom service module, which compares the state to filter information and standardize the format to be sent to the intermediate service module, which writes the information to the database and sends it to a network management operational pattern interface to display the alarm information.

The invention discloses a uniform port model and a method for accessing a logical port thereof, and relates to the field of logical port management of a telecommunication transmission network. The naming information of a uniform port in the uniform port model comprises a network element ID (Identifier), a single disc ID and a uniform port identification character string; the uniform port identification character string comprises a port type, primary port rate, a physical port number and a logical port number which is directly bound to a physical port, wherein the port type is the object type of the physical port; the primary port rate is the actual rate of the physical port; the physical port number is a number value of the port in a local layer port; the logical port number is a logical port index number which is distributed to a circuit by description transmission network manager. According to the uniform port model, the logical port of above 10<5> can be accessed simultaneously; the operability of the transmission network manager can be improved; the effectiveness and the reliability in accessing of the logical port can be improved; the logical port can be positioned accurately; the practical value is greater.

In a transmission network including multiplex transmission units A, F, G, D and E, when the line breakage has occurred on the OC-12 transmission path of the direction from unit A to unit F, the unit F detects the signal coming in from the OC-12 path indicative of the line breakage. The unit F inserts the APS bytes which comes in from the unit A into the undefined area of the OC-192 transport overhead which is reserved for the through-transport of APS bytes, and transports it to the unit G. On receiving the through-transport APS bytes, the unit G inserts it intact into the defined area for the APS bytes in the OC-12 transport overhead, and sends it to the unit D. In this manner, protection switching between the units A and D is carried out.

The invention discloses a wireless type-based soil temperature and moisture gradient measuring system. The soil temperature and moisture gradient measuring system comprises sensor groups consisting of soil temperature sensors and soil moisture sensors, wherein each sensor group is arranged in a vertical gradient direction of soil to be measured, a sensor node is formed by multiple sensor groups in the same vertical gradient direction through an analog-digital conversion channel, a node transmission network is formed by a ZigBee wireless network and a routing node between every two sensor nodes, the node transmission network is connected with a central acquisition node through a multi-channel analog switch to form a star topology structure, and the central acquisition node carries out internal storage and precision calibration on data transmitted by the sensor node, and transmits the processed data to a data display terminal through an RS232/RS485 communication interface for observation and analysis. By adopting the technical scheme of the invention, the measurement of three-dimensional soil temperature and moisture is achieved, and each sensor node is used for wireless transmission of data, so that the energy consumption is low, and the applicable occasions are wide.

The invention relates to a household equipment control system, method and device and a wireless communication module, and belongs to the technical field of terminals. The control system comprises a target object detector and an auxiliary detection module. The control method comprises steps of performing target object detection on a target area based on the target object detector to obtain first detection information; performing auxiliary detection on a target object in the target area based on a signal transmission network of the auxiliary detection module to obtain second detection information; and determining a detection result of the target object according to the first detection information and the second detection information, and executing a control operation on the home equipment based on the detection result. The second detection information is used as the supplement of the first detection information of the household equipment, so that misjudgment caused by controlling the household equipment according to the first detection result under the condition that the first detection result is inaccurate is prevented, and the control accuracy of the household equipment is improved.

The invention discloses a static load test remote geographic position acquisition and monitoring system. The system comprises a monitoring center, a transmission network unit and a terminal unit; themonitoring center is connected with the terminal unit through the transmission network unit; the monitoring center comprises an electronic map management module; the terminal unit is used for acquiring geographical location information of a detected object in real time and transmitting the geographical location information to the monitoring center through the transmission network unit, so that theelectronic map management module in the monitoring center displays the geographical location of the detected object in real time. According to the system of the invention, a geographic position acquisition and monitoring mode is set, high-precision geographic position acquisition is realized, acquired geographic position information is automatically uploaded to the monitoring center in real time,remote real-time acquisition and monitoring of the geographic position information of static load test projects and detection objects are finally realized, real-time supervision of the positions of the detection objects is ensured, and thus authenticity of detection is ensured.