4results about How to "Optimal implementation method" patented technology

The invention discloses a device for measuring the gas adsorption capacity of a coal sample through a constant-pressure volumetric method. The device comprises a coal sample tank, a vacuum degassing assembly, a methane supply assembly, a liquid seal pressure transmitting assembly and an air pressure stabilizing assembly, the methane supply assembly comprises a methane steel cylinder, a gas supply pipeline, a pressure reducing valve and an inflation control valve; the methane steel cylinder is communicated with the coal sample tank, and an inflation valve is arranged between the methane steel cylinder and the coal sample tank; the liquid seal pressure transmitting assembly comprises a methane constant-pressure container and an air constant-pressure container, the methane constant-pressure container is communicated with the air constant-pressure container through a communicating pipe, a communicating isolating valve is arranged on the communicating pipe, the methane constant-pressure container is communicated with the coal sample tank, and the methane constant-pressure container is provided with a displacement sensor. The invention also discloses a determination method using the device. The device is reasonable in structure, stepless and adjustable in given pressure and easy to realize. The determination method provided by the invention overcomes the problems of poor accuracy and poor reliability in the prior art.

The invention relates to the technical field of commodity production and marketing management, and discloses a multi-platform-based marketing and production data return system, which comprises a data acquisition module, a data processing module, a profit and loss analysis module and a data return module. According to the marketing and production data return system based on multiple platforms, the data acquisition module acquires the sales information generated by multiple sales platforms, and the data processing module processes the acquired sales information to obtain the commodity sales data in a unified format. The profit and loss analysis module obtains the corresponding profit and loss data based on the production profit and loss model and the input commodity sales data, and finally, the operation background determines the corresponding production plan based on the actual production environment, the system architecture is simple, the implementation method is convenient, and the profit and loss data is obtained through the reliable commodity sales data, so that the implementation efficiency is improved. The finally obtained profit and loss data is a result matched with an actual sales condition, and an accurate and reliable data basis is provided for a subsequent commodity production plan.

A DSP on-orbit reconfiguration and configuration loading method and system, the steps are as follows: the control circuit receives the data to be reconfigured and carries out analysis processing; the data to be reconfigured after analysis processing is written into the program data storage area of the continuous address of Flash in sequence according to the programming timing requirement of FLASH; the control circuit carries out logical reset to the reconfigured loading DSP; after reset is completed, the reconfigured loading DSP device sends the continuous data address to the on-orbit reconfiguration and loading control circuit in sequence; the on-orbit reconfiguration and loading control circuit carries out address decoding to the received data address, and maps out the program data storage area address in the corresponding Flash, reads the program data from the corresponding program data storage area of the Flash in sequence, and places the continuous address data on the configuration interface according to the configuration interface timing requirement of the reconfigured loading DSP, until all the continuous address data required by the reconfigured loading DSP is read completely, and the loading is successful.

According to the MOSFET thermal protection method based on current and time integration, a group of current and time relations are obtained in an offline calibration mode; the working time of different segments can be realized by setting a plurality of counters, each counter is respectively mapped to different current intervals, the formula of the counter is J = summa 0Pdt = summa 0I2Rdt, and the counter is used as table look-up input to obtain a target sustainable working current; comparing the obtained target current with an actual working phase current, and if the actual current is greater than a sustainable working current value, progressively decreasing the torque according to a preset gradient until the torque is 0; if the actual current is smaller than the sustainable working current value, the torque is progressively increased according to the preset gradient until the torque is equal to the torque instruction. The method is simple and convenient to implement, avoids complex operation, reduces the load rate of the MCU execution cycle, does not need simulation, is completely completed through rack calibration data, is high in estimation precision, and effectively prevents the MOSFET from being damaged.