34results about How to "Realization rate" patented technology

The invention relates to the technical field of electric power wireless data terminals, in particular to a 230MHz Mobitex master-slave redundancy wireless data terminal special for electric power. The wireless data terminal is characterized by comprising an advanced RISC (reduced instruction set computer) machines (ARM) main processor, a first baseband processing digital signal processor (DSP) chip, a second baseband processing DSP chip, a first radio frequency modem, a second radio frequency modem, a channel selection unit, a transmitting module, a receiving module and an MIMO2*2 antenna, wherein the ARM main processor, the first baseband processing DSP chip and the second baseband processing DSP chip form a master-slave structure, and the first baseband processing DSP chip and the second baseband processing DSP chip backup each other. Compared with the prior art, the 230MHz Mobitex master-slave redundancy wireless data terminal has the advantage that: based on a Mobitex open protocol stack and existing 230MHz frequency band resources of an electric power system, the 230MHz Mobitex master-slave redundancy wireless data terminal is favorable for upgrading and reconstructing the existing 230MHz data radio station and an 800MHz Mobitex wireless communication system of the electric power system.

The present invention discloses a transmission rate adjustment method in an optical transport network and a network device. The method includes that the network device receives a transmission rate adjustment instruction, wherein the transmission rate adjustment instruction is an instruction for adjusting the target time slot information of a high-order optical data unit occupied by a target optical data unit, and the target optical data unit is a rate-configurable optical data unit; the network device determines the target time slot occupation information according to the transmission rate adjustment instruction, and adjusts the transmission rate of an optical channel corresponding to the target optical data unit according to the target time slot occupation information; the network devicetransmits the rate adjustment information of the optical channel corresponding to the target optical data unit to a downstream device connected to the network device, wherein the rate adjustment information includes a rate adjustment instructor and the target time slot occupation information, and the rate adjustment instructor is configured to instruct the downstream device to adjust the transmission rate of the optical channel corresponding to the target optical data unit according to the target time slot occupation information, thereby adjusting the transmission rate of the entire optical channel in the optical transmission network.

The invention discloses a method for user grouping and power allocation in a millimeter wave MIMO-NOMA system based on message transfer. The method includes steps: (1) a base station acquires downlink channel information of users and performs analog precoding. (2) With the goal of maximizing the weighted sum rate of the system, a user grouping algorithm based on the minimum summation message passing strategy is proposed to obtain the matching result between the user and the radio frequency chain. (3) The zero-forcing digital precoding is used to suppress inter-group interference, and a low-complexity power allocation method is adopted to maximize the weighted sum rate of the system. The invention can effectively improve the system spectrum efficiency, fully utilize the system hardware resources, and can be used for multi-user data transmission.

The invention relates to a special temperature-reduction accelerator for a horizontal type thermocouple testing furnace. The special temperature-reduction accelerator comprises a cooling pipe, a blower, a blower actuator and a temperature-measurement controlling instrument. One end of the cooling pipe is inserted into a furnace tube of the thermocouple testing furnace and penetrates out of an opening of the furnace tube; the other end of the cooling pipe is fixedly connected with the blower; the blower is controlled to be started / stopped by the blower actuator; the temperature-measurement controlling instrument is mounted at a rear side of the blower; the temperature-measurement controlling instrument controls the blower actuator; an outer wall of the cooling pipe is provided with a groove; a temperature-measuring thermocouple is arranged in the groove; the working end of the temperature-measuring thermocouple is located in the middle of the cooling pipe; and the reference end of the temperature-measuring thermocouple is connected with the temperature-measurement controlling instrument through a leading wire. The cooling pipe penetrates through the furnace tube of the horizontal type thermocouple testing furnace, thus the heat dissipation is even, the temperature-reduction efficiency is high, and the stress damage to the furnace tube of the testing furnace caused by too-fast local cooling which is generated by using fans for directly blowing the furnace tube of the testing furnace is avoided; the cooling pipe is in seamless connection with the blower, thus the process of heat dissipation by air cooling is ensured to be energy-saving and efficient; and with the arrangement of the temperature-measurement controlling instrument and the blower actuator, automatic temperature measuring, automatic stopping and overrun controlling over temperature-reduction rate can be realized.

The present application discloses a transmission rate adjustment method and network equipment in an optical transmission network, including: the network equipment receives a transmission rate adjustment instruction, and the transmission rate adjustment instruction is an instruction for adjusting target time slot information of a high-order optical data unit occupied by a target optical data unit , the target optical data unit is an optical data unit with a configurable rate; the network device determines the target time slot occupancy information according to the transmission rate adjustment instruction, and adjusts the transmission rate of the optical channel corresponding to the target optical data unit according to the target time slot occupancy information; the network device Send the rate adjustment information of the optical channel corresponding to the target optical data unit to the downstream device connected to the network device. The rate adjustment information includes the rate adjustment indication and the target time slot occupancy information. The rate adjustment indication is used to instruct the downstream device to occupy The information adjusts the transmission rate of the optical channel corresponding to the target optical data unit; thereby realizing the adjustment of the transmission rate of the entire optical channel in the optical transport network.

The invention relates to the technical field of electric power wireless data terminals, in particular to a 230MHz Mobitex master-slave redundancy wireless data terminal special for electric power. The wireless data terminal is characterized by comprising an advanced RISC (reduced instruction set computer) machines (ARM) main processor, a first baseband processing digital signal processor (DSP) chip, a second baseband processing DSP chip, a first radio frequency modem, a second radio frequency modem, a channel selection unit, a transmitting module, a receiving module and an MIMO2*2 antenna, wherein the ARM main processor, the first baseband processing DSP chip and the second baseband processing DSP chip form a master-slave structure, and the first baseband processing DSP chip and the second baseband processing DSP chip backup each other. Compared with the prior art, the 230MHz Mobitex master-slave redundancy wireless data terminal has the advantage that: based on a Mobitex open protocol stack and existing 230MHz frequency band resources of an electric power system, the 230MHz Mobitex master-slave redundancy wireless data terminal is favorable for upgrading and reconstructing the existing 230MHz data radio station and an 800MHz Mobitex wireless communication system of the electric power system.

The invention discloses an angular rate and angular acceleration measuring method based on monocular vision, and the method mainly comprises the steps that firstly, a feature mark motion sequence image fastened on a working table of a rotary motion generation device is acquired through collection and imaging equipment; secondly, a template matching method is adopted to determine an interested area only containing motion features on the feature mark motion sequence image, and circular templates with different sizes circularly match the mark image to determine interested areas of images acquired at different shooting distances and rotation positions; then, a straight line segmentation detection method is used to realize feature straight line edge sub-pixel extraction in the interested areas , and only a straight line edge in a motion direction is reserved through constraint of edge points; and finally, the angular rate and the angular acceleration of the rotary motion are resolved by using the extracted linear edge in the motion direction.

The invention discloses a load ground detector based signal playback module. The module comprises a digital-to-analogue conversion circuit and a filter circuit. The filter circuit comprises a first filter and a second filter. The digital-to-analogue conversion circuit is integrated on an FMC board card, the data input end of the digital-to-analogue conversion circuit is connected with an IQ data signal output end of an FMC board card interface, the control input end of the digital-to-analogue conversion circuit is connected with two TTL trigger pulse input ends through the FMC board card interface, one output of the digital-to-analogue conversion circuit is connected with the input of the first filter, the other output is connected with the input of the second filter, and the outputs of the first filter and the second filter are output to external equipment through two DA output terminals. By means of the module, data rate changing and modulation of input data can be achieved, and radio-frequency signals meeting index requirements are output; an external SMA is connected with the filters directly, so that changing can be performed directly according to user requirements.

The aim of the invention is to measure, under laboratory conditions, soil phase transformation-constitutive coupling law in piping processes, and namely to disclose a testing device for testing the soil phase transformation-constitutive coupling law, and a method. Through use of the method and the device, simulation and measurement of critical states and phase transformation rates of soil phase transformation in the piping processes under different stress conditions can be realized, and the measurement of influences of the soil phase transformation on soil stress-strain relationship also can be realized.