9results about How to "High cost" patented technology

The present invention relates to the technical field of photovoltaic power equipment, and discloses a photovoltaic grid-connected cabinet, including a cabinet support and an outer shell, wherein a plurality of breathing plates are fixedly installed inside the cabinet support, and the plurality of breathing plates divide the inner cavity of the cabinet support into different installation chambers, and the breathing plate includes a base plate and a plurality of heat-conducting blocks, wherein the plurality of heat-conducting blocks are embedded in the inner surface of the base plate, and a flow guide pipe is embedded inside the base plate, and the flow guide pipe passes through the heat-conducting block and is fixedly connected, and a plurality of heat-conducting blocks are connected in series, and a breathing cavity is opened inside the heat-conducting block. The photovoltaic grid-connected cabinet adopts a breathing plate as a cabinet partition, and the opening and closing of the breathing cavity can be adjusted by controlling the expansion and contraction of a telescopic ball, so that the grid-connected cabinet not only has the function of blocking external dust and high temperature, but also has the function of one-way ventilation and heat dissipation. Since a monitoring component is arranged inside the breathing plate, the grid-connected cabinet has the function of discharging internal hot air nearby, reducing heat dissipation energy consumption, and being more environmentally friendly.

The present invention provides a method and device for configuring reference signal information, wherein the method includes: obtaining a first information set A and a second information set B, dividing the first information set A and the second information set B into N subsets respectively, and associating the first information set subset Ai and the second information set subset Bi; wherein the elements in the first information set A are used to indicate at least one of the following: modulation and demodulation mode, redundant version information; the elements in the second information set B are used to indicate demodulation reference signal port configuration information, wherein the demodulation reference signal port indicated by the elements of the set B belongs to a codeword. By adopting the above technical solution, the first information set and the second information set are obtained, and the two information sets are associated and sent to the communication node of the opposite end, the problem of high overhead of notifying DMRS port configuration information in the related technology is solved, and the overhead of DMRS port configuration information is greatly reduced.

This invention discloses a device type identification method, terminal device, and storage medium based on traffic sampling. It eliminates the need to collect complete device traffic data; device identification is achieved simply by sampling traffic at the gateway. To address the issue of missing traffic features, traditional tensor imputation algorithms learn the embeddings corresponding to tensor rows, columns, and depths, but cannot generalize to unknown rows, columns, or depths. This results in repeated retraining, time-consuming and costly feature imputation. This invention proposes an inductive tensor imputation method that utilizes historical information to learn and generate embedding functions, enabling fast and effective device traffic feature imputation.

The invention discloses a tunnel energy consumption control system and method based on the Internet of Things, and belongs to the technical field of tunnels, and the system comprises a data collection module which is used for collecting tunnel real-time data based on the Internet of Things; the wireless transmission module is used for transmitting the collected tunnel real-time data based on the Internet of Things to the central control terminal based on the Internet of Things communication technology; and the central control terminal is used for processing and analyzing the tunnel real-time data based on the Internet of Things, determining a tunnel analysis result, and performing control management on tunnel energy consumption based on the tunnel analysis result. The system solves the problems that tunnel energy consumption cannot be monitored and controlled in real time, efficient utilization, energy conservation and emission reduction of tunnel energy cannot be achieved, and tunnel operation benefits are low in the prior art. The tunnel energy consumption can be monitored and controlled in real time, efficient utilization, energy conservation and emission reduction of tunnel energy can be achieved, and tunnel operation benefits can be improved.

The utility model discloses a medical bedpan, and relates to the field of hospital supplies. The utility model provides a medical bedpan which is favorable for separating excrement and urine of a patient so as to accurately measure the urine volume. The medical bedpan comprises a bedpan body and a bedpan body outer flange surrounding the upper end of the bedpan body. The device further comprises a connecting sleeve, a urine volume metering cylinder, a urine guide hose and a urine collector. A storage grid is arranged on one side of the basin body; the connecting sleeve is located in front of the pot body and below the outer flange of the pot body, and the connecting sleeve is connected with the outer flange of the pot body; the urine volume metering cylinder is detachably connected with the connecting sleeve; a hose connector is arranged on the connecting sleeve; the urinary catheterization hose is connected with the hose connector, and the urine collector is connected with the urinary catheterization hose; and the urine collector and the urine guide hose can be placed in the storage grid. According to the utility model, the excrement and the urine of a patient can be completely separated, the excrement is collected by the basin body, the urine enters the urine volume metering cylinder to be collected, the excrement is not mixed into the urine, and the urine volume can be accurately metered. The male patient can urinate towards the urethral orifice by holding the urine collector without configuring a urinal.

This application discloses a ciphertext processing method and system, relating to the field of encrypted privacy computing technology. The method includes: a client quantizing the vector to be matched, directly encoding the coefficients, and encrypting and uploading the query ciphertext; a server constructing a self-isomorphic base ciphertext and recombining it to obtain a dimension-wise query ciphertext, which is then subjected to homomorphic multiplication and addition inner product operations with the template ciphertext to obtain an encrypted score block; a returned ciphertext block is obtained by superimposing a channel-aligned random mask, and the masked score share is obtained through decryption by the authentication / decision side; a security threshold comparison is performed by combining complementary shares, and the result is output. In this scheme, the client only uploads a single ciphertext, and the server performs dimensional splitting, eliminating the need for multi-packet transmission and significantly reducing communication overhead; homomorphic inner product matching is achieved through ciphertext computation links, reducing redundant computations and effectively reducing homomorphic computation losses; and the leakage of plaintext similarity information is shielded through random mask encryption and collaborative verification of dual-end score shares, enhancing privacy protection capabilities.

The application relates to a motion path planning method and device of a mechanical arm in an evaporator water chamber. The method comprises the following steps: under the condition that a robot does not collide with an inner wall of the water chamber and the minimum distance between the robot and the inner wall of the water chamber is greater than a preset safety distance, determining a neighborhood centering on a first node; for each adjacent node in the neighborhood, determining the path cost of the adjacent node according to the first distance corresponding to the node group of the path of the adjacent node, the second distance between the adjacent node and the first node, the minimum distance at each node on the path and the minimum distance at the first node; and based on the path cost of each adjacent node, determining the parent node of the first node from the adjacent nodes to plan the motion path of the mechanical arm. The motion path not only tends to be the shortest, but also ensures that the distance between the robot and the inner wall of the water chamber is relatively large, so that the mechanical arm does not collide during the installation operation of the blocking plate in the evaporator water chamber.

This application provides a radio frequency (RF) device and its inductor. The RF device includes a power amplifier circuit, a signal coupling circuit, an extraction circuit, and a harmonic filter circuit. The power amplifier circuit amplifies a differential signal to output a signal to be filtered. The signal coupling circuit includes a primary inductor and a secondary inductor. The signal coupling circuit receives the signal to be filtered through the primary inductor and outputs a single-ended signal from the secondary inductor. The extraction circuit has a center tap. The extraction circuit couples with the primary inductor and outputs a common-mode signal from the center tap. The harmonic filter circuit performs harmonic filtering on the single-ended signal based on the common-mode signal, so that the secondary inductor of the signal coupling circuit outputs a filtered signal.

The invention relates to the technical field of data transaction, and discloses a transaction data processing method and a transaction data processing device. A first index identifier is generated based on the transaction record frequency of the current transaction of a user and the preset data length of target transaction data; the second index identifier is generated based on the total number of transaction records of all the stored transaction data and the preset data length of the target transaction data, so that the mobile terminal judges whether the target transaction data is stored in the transaction database or not by matching the first index identifier with the second index identifier in real time; according to the technical scheme, even if the transaction database fails, real-time insertion of the target transaction data is not affected, and in addition, when a certain link of the transaction database fails, the fault repair time of the transaction database and the repair time and overhead cost of automatic jumping to a normal link are saved.