8results about How to "Reduce the quantity required" patented technology

This disclosure provides an energy management device and an energy management system, relating to the field of power electronics technology. In this energy management device, a control board and function boards are respectively connected to corresponding connectors on a backplane. A communication processing module is provided on the backplane. The first sub-ports of the control board and the first sub-ports of the function boards are respectively connected to the communication processing module via corresponding adapter hardwired links. This allows the control board and each function board to exchange at least protection signals and control command signals through the adapter function of the communication processing module. Furthermore, the control board can monitor at least one power unit through the function boards. In this disclosure, communication between the function boards and the control board is no longer limited by the number of connection lines between them, thereby reducing the requirement for the number of I / O ports on the control board and the corresponding connectors on the backplane, alleviating the pressure on the number of I / O ports.

This invention relates to a servo control system simulated tracking loop testing device, belonging to the field of servo system technology, and solves the problem of high personnel and product quantity requirements in existing tracking loop testing. A servo system simulated tracking loop testing device includes a host computer and a slave computer. The host computer issues commands to the slave computer through servo system debugging software. The slave computer includes a simulated tracking loop command control module, a target motion curve plotting module, and a simulated tracking loop loop control module. This invention can complete the verification of vibration performance and high / low temperature static and dynamic indicators in servo sub-machine mode, reducing the need for personnel and product quantity, saving human capital, and reducing the management cost of various sub-machine software versions.

The utility model discloses a kind of electric drive flexible sucking disc, including cover, adapter plate, vacuum adsorption component, vacuum generating unit and electric drive adjusting unit, adapter plate is fixedly connected with cover, the drive several vacuum generating units synchronous rotation of electric drive adjusting unit is unfolded or retracted, vacuum adsorption component is connected to vacuum generating unit by pipeline. The same electric drive flexible sucking disc can suck workpieces of different sizes, reducing the need for different size suction tools, and having the advantage of strong versatility. The time for switching suction tools is avoided, indirectly improving the production capacity of the production enterprise site. The number of spare parts for the suction tool can also be reduced, reducing the maintenance cost of the user. The main body has a vacuum generating unit, reducing the cost of air piping, reducing labor costs, and being more aesthetically pleasing.

The invention discloses an electrocardiosignal classification method based on a dual-threshold neuromorphic reservoir, which comprises the following steps of: 1, receiving an electrocardiogram time sequence signal, and carrying out adjacent time sequence nonlinear coding operation on the electrocardiogram time sequence signal to generate an enhanced feature vector containing an original signal and a second-order interaction feature; step 2, inputting the enhanced feature vector into a dual-threshold neuromorphic reservoir, and generating a dual-channel pulse response sequence by using a dual-threshold pulse neuron to distinguish signal strength states; and step 3, constructing a joint feature vector according to the two-channel pulse response sequence, and inputting the joint feature vector into a classifier to obtain a classification result of the electrocardiosignals. According to the method, through cooperation of feature enhancement and a double-threshold mechanism, the problems that a traditional liquid state machine is poor in linear separability and neurons are prone to saturation are effectively solved, the number of the neurons is greatly reduced, and meanwhile the accuracy and the energy efficiency ratio of arrhythmia classification are improved.

This invention provides a phase self-synchronization method, apparatus, and radar for a digital array radar. The phase self-synchronization method includes the following steps: Step 1. Periodically injecting a receive correction signal into the receiving channel to obtain the offset value of the receive phase difference between channels; Step 2. Extracting the phase of the radio frequency signal leaked from the transmit channel to the receive channel, and calculating the offset value of the closed-loop phase difference between the transmit and receive channels; Step 3. Decoupling the offset value of the receive phase difference between channels from the offset value of the closed-loop phase difference between channels to obtain the offset value of the transmit phase difference between channels; Step 4. Compensating for the phase offset of each receive and transmit channel based on the offset values ​​of the receive phase difference and the transmit phase difference between channels. This invention can compensate for the phase difference drift between the receive and transmit channels in a digital array radar in real time, improving the antenna beam performance under long-term operating conditions.

This invention discloses a distributed series reactor device and control method for power lines, belonging to the field of power systems. The distributed series reactor device includes: introducing distributed adjustable series reactors into the power line between the starting bus and the ending transformer; a distributed series reactor control module acquiring the three-phase current signal of the power line, the three-phase voltage signal of the distributed fine-tuning series reactor, and the DC bus voltage signal of the distributed fine-tuning series reactor, generating fine-tuning control signals and coarse-tuning control signals; controlling the number of distributed coarse-tuning series reactors connected through the coarse-tuning control signal, and then connecting them to a preset reactance value through the fine-tuning control signal; continuously adjusting the reactance parameters of the power line between the starting bus and the ending transformer. This invention continuously changes the equivalent reactance of the power line through distributed adjustable series reactors, achieving three-phase imbalance management and power flow distribution adjustment, reducing system costs and losses, and improving operational reliability.