5results about How to "Less hardware" patented technology

A multi-battery bidirectional charging and discharging system supporting pulse charging and discharging and a control method thereof belong to the field of power electronics, and the bidirectional charging and discharging system comprises a power factor correction (PFC) stage composed of a three-phase bridge type full-control circuit, a direct current-direct current (DC-DC) converter stage and a plurality of switching device groups. The intermittent characteristic of the pulse charging current is utilized, different battery packs are charged and discharged reasonably and alternately by staggering the conduction interval of the pulse current, the current and voltage fluctuation of the alternating current power supply side in the energy flowing process can be reduced, and the influence of the system on the stability of a power grid or other power supplies is reduced. The invention supports pulse charging and discharging, and can reduce the polarization effect of the battery, prolong the service life of the battery, improve the charging efficiency, reduce hardware equipment required by charging and reduce the cost. The system allows bidirectional flow of energy between the alternating current side and the direct current side of the system, is controllable in power, supports V2G application, and can be used for a scene in which a battery is charged or discharged by using pulse current and continuous current.

The application relates to the technical field of battery detection, and discloses a battery pack charging and discharging state detection method. Since a current sensor is not additionally arranged to detect the current of the battery pack, only the voltage signal of the battery pack needs to be detected, and then the charging and discharging state of the battery pack can be analyzed through an algorithm. The method reduces additional hardware, simplifies circuit design, and reduces cost and complexity.

An improved bamboo chip optical detection device comprises a rack and a camera obscura optical detection mechanism arranged in the rack, and the camera obscura optical detection mechanism is provided with a conveying channel allowing bamboo chips to pass through; the camera obscura optical detection mechanism comprises a camera phase, a light source and a fixing plate for fixing the camera and the light source; the two cameras are respectively arranged at two ends of a diagonal line above and below the bamboo chip to be detected in the center of the camera obscura optical detection mechanism; and the two light sources are respectively arranged at two ends of the other diagonal line above and below the bamboo chip to be detected in the center of the camera obscura optical detection mechanism, or are respectively arranged at two ends of the diagonal line on the same side as the camera. The two light sources and the two cameras are respectively arranged on the two sides of the product, so that the light sources are prevented from entering the visual field of the cameras, the imaging effect of the product is improved, and the detection precision is improved.

This invention relates to the field of orthodontic appliance manufacturing technology, and discloses a cutting path compensation method, system, and cutting system for orthodontic appliances. The cutting path compensation method includes: acquiring a module to be cut, the module including a carrier, a dental model fixed on the carrier, and a shell-shaped orthodontic appliance to be cut formed by hot pressing a diaphragm onto the dental model, the dental model including a positioning block protruding inwards from the dental arch, the dental model being fixed to the carrier by the positioning block; detecting the spatial pose of a detection surface and a reference surface based on a distance detection device; wherein the detection surface is the upper surface of the positioning block, and the reference surface is the bearing surface of the carrier; calculating the difference between the spatial pose of the bearing surface and the spatial pose of the detection surface, and compensating the initial digital cutting path corresponding to the dental model based on the difference to obtain a new digital cutting path.

The present invention discloses a two-node Kubernetes cluster system and a deployment method thereof, wherein the Kubernetes cluster system is composed of a Master1 node and a Master2 node, wherein the Master1 node and the Master2 node are respectively provided with a high-performance and high-availability data translation component and a relational database. The present invention only requires two nodes to meet the high availability requirements of Kubernetes, and when one node fails, the other node can also manage the Kubernetes cluster, and saves server costs relative to a three-node cluster environment.