34results about How to "Work normally" patented technology

A fault detection and location method for a section of a distribution network with distributed power sources, including two parts: fault judgment and location and fault type identification. Its fault judgment and location method detects the fault and identifies the fault phase by comparing the relationship between the absolute value of the phase angle difference of each phase current in each power system section and the threshold value, finds out the section where the fault point is located, and removes it in time fault zone to complete the protection action. Its fault type identification method is based on identifying the fault phase, comparing the zero-sequence current amplitude at the nodes at both ends of the fault section at the time of fault judgment with the set threshold, and judging the fault at the time of fault judgment. Whether the zero-sequence current amplitudes of the zero-sequence currents are all less than or equal to the set threshold, so as to determine whether the fault is a phase-to-phase fault or a ground fault. The invention can be used for section fault detection and location of distribution network with distributed power under high penetration rate.

The invention relates to the technical field of circuit board testing, in particular to a flexible circuit board touch screen substrate testing device. The device comprises an operation table, and a fixing structure is arranged on the top side of the operation table; a reset structure is connected between the fixing structure and the operation table; an observation structure is arranged on the inner side of the operation table; an amplification structure is mounted on the top side of the operation table; and a contact structure is mounted on one side of the operation table. A flat cable is pressed and flattened on the table top through the fixing structure, so that testing personnel can conveniently conduct testing. The pressed and fixed state of the flat cable can be kept through the reset structure, and meanwhile, an anti-skid pressing wheel can be rapidly lifted up to take out the flat cable. The bottom side of the to-be-tested flat cable is observed in real time through the observation structure, and a tester can conveniently obtain more comprehensive circuit information. The surface of the flat cable with fine and dense circuit distribution is observed through the amplification structure, and a specific point at one end of the flat cable is continuously connected through the contact structure, so that the test work is further facilitated.

The invention discloses an agricultural photovoltaic system, which comprises a mounting seat, a supporting column is arranged on the top of the mounting seat, the supporting column is hollow, a fixing block is arranged inside the supporting column, and a lifting column is arranged on the top of the supporting column. The lifting column is plugged with the supporting column, a hydraulic lifting rod is provided between the lifting column and the fixed block, and a telescopic device is provided on the top of the lifting column, and the telescopic device includes a telescopic shell, a fixed plate, a sliding Baffles, electric actuators and gutters. The present invention is equipped with a lifting column and a telescopic device, and the hydraulic lifting rod can push the lifting column to rise, so that the height of the solar photovoltaic panel can be changed, and the height of the solar photovoltaic panel can be lowered to avoid equipment damage in windy and rainy weather. The lower electric push rod pushes the sliding baffle to move, and the top blocks the solar photovoltaic panel to protect the solar photovoltaic panel, avoiding damage to the solar photovoltaic panel due to weather, and ensuring the service life of the equipment.

The invention relates to an escape cabin ejecting and pushing device. The escape cabin ejecting and pushing device comprises a work station butt joint fence connected with a deep sea work station, wherein an escape cabin butt joint fence is arranged on the top of the work station butt joint fence through a locking ring, an escape cabin is arranged on the top of the escape bin butt joint fence, and multiple ejecting and pushing device bodies are evenly arranged in the inner annular face of the work station butt joint fence. Each ejecting and pushing device body structurally comprises an installation base, wherein an oil cylinder is fixed to the installation base, the head of a piston rod of the oil cylinder is provided with a reaction force support through a connecting piece, and the top portion of the reaction force support is connected with an ejecting and pushing point on the circumference of the bottom of the escape cabin butt joint fence in a butt joint mode. Each ejecting and pushing device body further comprises a power source of the corresponding oil cylinder, wherein a plurality of energy accumulators are arranged on the outer circumferential face of the work station butt joint fence at intervals and connected with an electromagnetic ball valve through hydraulic pipelines, and the electromagnetic ball valve is arranged in a pressure-resistant shell. Each ejecting and pushing device body further comprises a control cable used for controlling opening and closing of the corresponding electromagnetic ball valve. The working process is safe and reliable, and free floating of the escape cabin deep sea work station can be ensured.

The present invention relates to a security protection framework and method for industrial control equipment based on an active immunity mechanism. The specific method is to divide the security protection system of an information system into a trusted node computing environment, a trusted region boundary and a trusted computing framework based on active immunity. The three components of the trusted communication network are based on the trusted computing theory of active immunization, and the overall design is carried out from the two levels of relevant security technology and management methods, and the active immune protection that adapts to the industrial communication network scene is established in combination with the on-site industrial control system equipment system framework. The active immune industrial control security protection framework in the present invention adopts safe and efficient cryptographic algorithms, trusted control chips, trusted software and trusted network connections, and integrates active security strategy management and control systems to form a set of active immune information suitable for industrial control sites The security protection scheme provides a credible and safe operating environment for key equipment in the industrial control system network.

The invention discloses assorted health-care porridge, which comprises the following components by weight: 3 to 5 grams of bee pollen, 75 to 120 grams of honey, 1 to 2 grams of propolis, 2 to 4 grams of royal jelly, 5 to 10 grams of walnut kernel, 5 to 10 grams of medlar, 5 to 10 grams of black sesame, 30 to 50 grams of black soya bean, 100 to 120 grams of mung bean, 5 to 10 grams of semen nelumbinis, 100 to 120 grams of fresh lotus root, 100 to 120 grams of dioscorea root, 2 to 5 grams of hairy antler and 2,000 to 2,600 grams of purified water. A preparation process comprises the following steps of: cleaning walnut kernel, medlar, black sesame, black soya bean, mung bean, semen nelumbinis, fresh lotus root, dioscorea root and hairy antler, drying, and slicing fresh lotus root, dioscorea root and hairy antler; and putting walnut kernel, medlar, black sesame, black soya bean, mung bean, semen nelumbinis, fresh lotus root, dioscorea root and hairy antler into a pressure cooker, cooking over slow fire until the mixture is boiled, maintaining for 5 to 10 minutes, cooling, adding honey, propolis, royal jelly and bee pollen, and stirring uniformly.