7results about How to "Optimize Energy Efficiency Ratio" patented technology

The invention provides a PQC and SM2 / 9 cooperative operation cryptographic chip and method based on an RISC-V architecture, and belongs to the technical field of cryptographic security. The chip comprises an RISC-V core and a configurable password collaborative operation unit, wherein the configurable password collaborative operation unit comprises a collaborative control state machine and a unified operation unit capable of being dynamically reconfigured. The method comprises the following steps: receiving and decoding a single cooperative operation instruction from an RISC-V core through a cooperative control state machine, and obtaining operation data feature information; the data length and the security level identification are extracted, and the optimal collaborative operation process is selected in a self-adaptive mode through comparison with a preset threshold value; and finally, dynamically configuring and scheduling a unified operation unit according to the selected process, and completing cooperative operation of the post-quantum cryptography algorithm and the SM2 / SM9 algorithm in an atomization mode. According to the method, deep fusion and intelligent scheduling of the two algorithms are realized on the hardware level, and the efficiency, the resource utilization rate and the safety of cooperative operation are improved.

The invention provides a traffic signal lamp redundancy identification system and method based on red light narrowband filtering, and belongs to the technical field of intelligent driving environment perception. The system is characterized in that a main processing module processes a color image based on a YOLOv8n model and a lightweight convolutional neural network, and outputs a first recognition result and the confidence of the first recognition result; when the confidence coefficient is lower than a threshold value, a redundancy identification module is started, a narrow-band image obtained by an auxiliary imaging module is analyzed, whether a strong red light signal emitted by a traffic signal red light exists or not is judged through self-adaptive threshold value segmentation, morphological processing and feature analysis, and a second identification result is generated; and the decision fusion module fuses the two paths of results to generate a final control instruction. According to the invention, through physical spectrum filtering and double-path information fusion, interference of ambient light such as sunset and the like is effectively overcome, and the robustness and safety of an automatic driving system in recognizing traffic lights under complex illumination, especially red light, are remarkably improved.

The invention provides a block compression method for marine survey data, electronic equipment and a storage medium. The method comprises the following steps: acquiring marine survey data, wherein the marine survey data comprises text data and image data; according to the data type of the marine survey data, partitioning the marine survey data to obtain a plurality of original data blocks, and partitioning text data in the marine survey data according to a first partitioning size; partitioning image data in the marine survey data according to a second partitioning size; respectively carrying out data compression on each data block in the plurality of original data blocks to obtain a plurality of compressed data blocks, and adopting different compression strategies on repeated character strings and non-repeated character strings in each data block in the plurality of original data blocks; and performing global assembly on the plurality of compressed data blocks according to the sequence of the plurality of original data blocks to obtain target compressed data. The method can give consideration to high compression rate, high compression speed and low resource consumption.

The application discloses a step-by-step cooling carbon dioxide refrigeration system, which is composed of a compressor, a compression cooler, a re-cooler, a cooler, an evaporator, a throttling device, a working medium pipeline, a cooling pipeline, an adjusting valve, a low-temperature pipeline and a temperature sensor, the compression cooler is in close contact with the outer wall of the compression cavity / cylinder of the compressor, the temperature sensor is arranged on the exhaust pipe of the compressor, the compressor is connected with the cooler, the re-cooler, the throttling device and the evaporator through the working medium pipeline to form a closed refrigeration system, and the closed refrigeration system is filled with proper working medium, the cooling fluid in the cooling pipeline flows through the re-cooler, the compression cooler and the cooler in sequence, the working state of the adjusting valve is controlled by the temperature sensor, and the fluid in the low-temperature pipeline flows through the evaporator, so that the compression process of the carbon dioxide is strengthened by the compression cooler, the cooling process of the carbon dioxide is strengthened by the added re-cooler, and the energy efficiency ratio and the operation reliability of the carbon dioxide refrigeration system are obviously improved.

This utility model discloses a fire truck hose and cable layout structure, including a fire truck and a drone, with the drone mounted on the upper part of the fire truck. A fire-extinguishing water spray pipe is installed on the drone, connected to the fire truck's water pump via a hose. The drone is connected to a DC power supply on the chassis at the bottom of the fire truck via a cable, with the drone receiving DC power from the chassis power supply. Only one positive conductor is installed in the cable. The hose includes an outer layer, a negative conductor, and an inner lining layer, with the negative conductor positioned between the outer and inner lining layers and braided together with the outer layer. This utility model removes the negative conductor from the cable and integrates it into the hose structure, reducing the cable diameter and weight, effectively increasing the drone's lifting height under a 400kg load. The flowing medium inside the hose continuously carries away heat from the negative conductor, avoiding overheating risks. Simultaneously, the braided copper conductor and polyester layer enhance the hose's compressive strength.

This application discloses a vehicle refrigeration unit and its refrigeration system, belonging to the related technical field of vehicle refrigeration units. It includes an installation frame with a housing and an inner housing detachably mounted on both sides. An air outlet assembly is located at the top of the inner housing, and the assembly includes a vertically structured mounting plate. External and internal air outlets are respectively located on the two sides of the vertically arranged mounting plate. The beneficial effects of this application are: the refrigerant from the condenser is directly split. During this splitting, one path is throttled and cooled by a throttling device before entering the economizer, while the other path, the un-throttled mainstream refrigerant, enters the economizer. The two refrigerants undergo sufficient heat exchange within the economizer. The throttled, low-temperature refrigerant can more effectively absorb heat from the mainstream refrigerant, thereby significantly increasing the subcooling of the mainstream refrigerant. This results in a lower dryness and higher liquid ratio of the refrigerant entering the evaporator, leading to a higher cooling capacity per unit mass of refrigerant.

The invention discloses a low-drift phase change memory array, architecture and neural network operation component, the phase change memory array is composed of m rows and k columns of phase change memory units, top electrodes of phase change elements in the phase change memory units are electrically connected with drain electrodes of switch elements, bottom electrodes of the phase change elements in the phase change memory units are connected with bit lines, grid electrodes of the switch elements are connected with word lines, the source electrode is connected with the source line; the phase change memory architecture comprises a control circuit, a word line (WL) driver, a bit line (BL) driver, a source line (SL) driver, an input or output processing circuit and a phase change memory array, the neural network operation assembly comprises a phase change memory array, an input circuit, a driving circuit, a programming circuit, an output circuit and a digital processing circuit. According to the invention, the resistance drift phenomenon of each storage unit in the device array is effectively inhibited.