39results about How to "Play a backup role" patented technology

The invention discloses a method and a device for controlling a mainboard of a double CPU system. The method comprises that: when any one CPU system executes functions of data processing, controlling, managing and / or maintaining of a device, the other CPU system acquires data information and state information of the CPU system through an information interacting channel, and the working state of the CUP system is monitored according to the state information; and when any one CPU system discovers the other CPU system is failed, the CPU system replaces the failed CPU system to execute all the functions of the device according to the data information. The method and the device realize redundancy of the CPU system of communication equipment, and the reliability of the communication equipment is improved.

The invention relates to the technical field of relays, in particular to a novel relay, and the relay comprises a relay body, two static contact bridges, a movable contact bridge, a driving shaft, a driving mechanism and at least one auxiliary terminal assembly; the auxiliary terminal assembly comprises two auxiliary terminals, an insulating seat, an auxiliary movable contact piece, an auxiliary static contact piece and an insulating clamping piece; the insulating seat is fixed in the relay body, and the auxiliary movable contact piece and the auxiliary static contact piece are detachably installed on the insulating seat; a moving contact and a static contact are arranged at an interval in the height direction, the driving shaft is sleeved with an insulating clamping piece, and the end, provided with the moving contact, of the auxiliary moving contact piece extends towards the insulating clamping piece and is matched with the insulating clamping piece in a clamped mode. Compared with the prior art, a fixing mode that the auxiliary movable contact piece is fixed on the driving shaft is replaced, the load of the driving shaft is reduced, and the problem that the auxiliary movable contact piece falls off from the driving shaft is solved.

The invention discloses a self-switching type bi-directional injection molding machine head, and belongs to the field of injection molding machine heads. The self-switching type bi-directional injection molding machine head comprises a first injection molding machine and a second injection molding machine. Ends of the first injection molding machine and the second injection molding machine are separately connected with a first auxiliary injection molding machine head and a second auxiliary injection molding machine head. A conveying pipeline is connected between the first auxiliary injection molding machine head and the second auxiliary injection molding machine head. A feeding pipe is connected to the middle of the end, away from the first injection molding machine, of the conveying pipeline. A main injection molding machine head is connected to the end, away from the conveying pipe, of the feeding pipe. The conveying pipe is connected with a pair of pneumatic butterfly valves. The pair of pneumatic butterfly valves are separately located on two sides of the feeding pipe. Through the bi-directional injection molding machine head, mixed injection molding is achieved, the mixing ratio of injection pigments is changed to obtain plastic products with more colors, and therefore types of injection molding materials purchased are decreased, the cost is lowered, and colors are of novelty.

The invention belongs to the technical field of flap valves, and aims to solve the problems that an existing flap valve does not have an anti-blocking function and is difficult to ensure that a discharging process is smoothly conducted, a flap of the existing flap valve is generally manually closed or opened, and the control process is time-consuming and labor-consuming, in particular to an anti-blocking double-pneumatic flap valve. The anti-blocking double-pneumatic flap valve comprises a valve body and a vertical hopper, the vertical hopper is installed at the top of the valve body, a vertical partition plate is installed in the middle of the vertical hopper, a flap assembly is installed at the bottom of the vertical hopper, a first anti-blocking assembly is installed in the valve body, a second anti-blocking assembly is installed at the position, close to the bottom, of the vertical partition plate, and a pneumatic control assembly is installed on the outer wall of the valve body. According to the anti-blocking double-pneumatic flap valve, the pneumatic control assembly is arranged to pneumatically control opening and closing of the flap, operation is easy, use is convenient, time and labor are saved, the operation efficiency is remarkably improved, by arranging the first anti-blocking assembly and the second anti-blocking assembly, the situation that an opening is blocked during discharging can be effectively prevented, it is guaranteed that the discharging process is conducted smoothly, and the discharging efficiency is improved.

The invention discloses a terahertz-based rapid security inspection instrument, which includes a workbench and a transmission frame. A number of rollers are arranged between the workbenches. Pushing the spring makes the first blocking lever rotate clockwise around the first rotating shaft, and at the same time pushes the second blocking lever through the intermediate rod, so that the second blocking lever rotates counterclockwise around the second rotating shaft, and the first blocking lever and the second blocking lever move to Inside the middle box, the box body is driven by the conveyor belt through the middle box to complete the security inspection work. The setting of the spring acts as a buffer, and the box body will collide with the pulley on the first stop bar driven by the conveyor belt to avoid damage to the Hydraulic cylinder, the box body will slip between the conveyor belt after being blocked by the first stop bar, so that the box body stops moving for security inspection. When the first stop bar is damaged, the second stop bar can play a backup role, making the device keep running.

The invention discloses a military garbage sorting device based on the Beidou system, and relates to the technical field of garbage sorting. The present invention includes a collection area, a low-temperature plasma waste gas processor and a control room. A plurality of first garbage rooms and two second garbage rooms are fixed in a ring shape on the ground of the collection area, and the plurality of first garbage rooms and the two second garbage rooms are connected to each other. , several first garbage rooms and two second garbage rooms form a closed space on the back side, and a number of underground pools are ring-shaped on the ground of the collection area, and several underground pools are respectively located in several first garbage rooms and two second garbage rooms Inside. In the present invention, by setting up a buried pool, and designing a lift-type detachable garbage compartment in the buried pool for storage of garbage, using a garbage truck matched with the compartment can directly replace the compartment in the buried pool, It facilitates the transfer of garbage, and solves the problems of insufficient efficiency of existing garbage transfer and garbage spillage during transfer.

The invention discloses a plug-board structure. The plug-board structure comprises a plug-board body in which at least one supply hub is formed, wherein a plug-board protection structure covers the outside part of the plug-board, and the lower surface of the plug body and the plug-board protection structure are internally provided with a remote control device, the plug-board body is further provided with a display flasher electrically connected with telequipment and a remote control plate is arranged outside the telequipment; a battery box is arranged at the place of the plug-board nearby the upper surface of the plug-board body, a dry battery is arranged in the battery box, and the battery box is provided with a battery box switch made from a waterproof material. The plug-board structure can be applied to lift better so as to be convenient for plugging a plug and connecting with a power supply, is obvious in intelligent function, and is controlled by remote control; furthermore, the plug-board structure is provided with the battery to play a role in backup, and is convenient to observe the connecting state of the power supply.

The invention relates to a radio-frequency autonomous relative attitude measurement system applied between cluster objects. The system comprises two sets of relative attitude measurement devices with identical structures. Each set of devices include two transmitting antennas, three receiving antennas, two radio-frequency transmitting channels, three radio-frequency receiving channels, an auxiliary radio-frequency receiving channel, two dual-mode auxiliary radio-frequency channels, a baseband processing module, and a high-stability time-based module. The two sets of relative attitude measurement devices respectively receive and sending ranging signals, so that relative attitude measurement of a master member and a slave member can be completed without the need to use observation data provided by other cluster members. Therefore, when parts of members in the target cluster become valid, the relative attitude measurement function can still be provided normally. In addition, with the system, the real-time performance of whole-cycle calculation as well as the real-time performance and operation flexibility of the equipment can be improved.

The invention relates to a decision-making method for optimizing thermal power unit combination under complementation of wind power and an energy storage system. The decision-making method comprises a process of optimizing an upper layer problem and a lower layer problem, wherein the upper layer problem builds upper layer problem constraint conditions by taking minimization of the operating cost of a thermal power unit within a set period as an objective function; the lower layer problem builds lower layer problem constraint conditions by taking maximization of profit acquired by the energy storage system in performing space-time translation and backup supply on electric energy in a power grid as an objective function; and a solution is acquired by using a mode of alternative iteration of the upper layer problem and the lower layer problem. The energy storage system in the model not only can participate in an expected power balance constraint, but also can play a role of backup through complementation with the wind power, and has an ability of directly eliminating the uncertainty; frequent startup and shutdown of the thermal power unit is avoided on the basis of improving the uncertainty acceptance ability; and a regulating effect of the frequency of an electric power system is considered in decision making, so that the decision is enabled to be free from conservation and more conform to the reality.

The invention relates to an optical current sensor and a high-frequency signal measurement system. The optical current sensor comprises an optical sensing part, a polarization maintaining fiber, an insulator and a demodulation module. The optical sensing part, the polarization maintaining fiber and the demodulation module are connected in sequence. The optical sensing part is supported by the insulator. The polarization maintaining fiber locates in an inner cavity of the insulator. The optical sensing part comprises a first sensing fiber ring, a second sensing fiber ring, a first wave plate, a first reflector, a second wave plate, a second reflector and a support, wherein the first wave plate, the first reflector, the second wave plate, the second reflector and the support are all made of nonmetal material. The first sensing fiber ring and the second sensing fiber ring are opposite in current direction. The demodulation module outputs two linearly-polarized beams passing the polarization maintaining fiber and the optical sensing part, the linearly-polarized beams carrying measured current information are returned and received by the polarization maintaining fiber, the beams are operated on the basis of differential induction, and measured current is obtained. The optical current sensor is capable of measuring high-frequency signals, and measurement is higher in accuracy and reliability.

The present invention relates to an FTL power-down test method, system, device and storage medium. By dividing the FTL into a data overwriting area for writing logic data and an information recording area for writing characteristic data, the information is recorded The area is divided into two sub-areas, and the characteristic data, data address and data length generated each time are accumulated and alternately written into the two sub-intervals of the information recording area to play a backup role. In the two sub-intervals, select the sub-interval in which data was written last time, and use the characteristic data, data address and data length of the sub-interval as the verification data, so that only the data written during power-off is lost during the verification, effectively improving the Verify the integrity of data, improve the security of key data, and improve test efficiency.

The invention relates to an FTL power failure test method, system and device and a storage medium. The method comprises: dividing the FTL into a data overwriting area used for writing logic data and an information recording area used for writing feature data, dividing an information recording region into two sub-regions. accumulating and alternately writing the feature data, the data address and the data length generated each time into two sub-intervals of the information recording area; to play a backup role, during verification, selecting a sub-interval in which data is written most recentlyfrom the two sub-intervals of the information recording area; using the characteristic data, the data address and the data length of the sub-interval as the verification data, so that only the data written during power failure is lost during verification, the integrity of the verification data is effectively improved, the safety of key data is improved, and the test efficiency is improved.

The invention relates to a command transmission method between a spacecraft and a carrier. The command transmission method is implemented based on a command transmission system that comprises a mechanical triggering sub-system and an electrical triggering sub-system. The command transmission method comprises the steps of S1, triggering a first command in the mechanical triggering sub-system, and separately sending the first command to the carrier and the electrical triggering sub-system; and S2, receiving the first command by using the electrical triggering sub-system, and triggering a secondcommand in the electrical triggering sub-system and sending the second command to a sub-system in the spacecraft. High reliable command transmission when the spacecraft and the carrier fly normally orescape during an ascent flying phase by using the way of combining the mechanical triggering sub-system with the electrical triggering sub-system. The method provided by the invention has a redundantdesign of dual-channel, multi-touch and multi-command-center, and completely eradicates the hidden dangers of mistakenly transmission and leaking of the commands.

The invention discloses a feeding device for water treatment, and relates to the technical field of water treatment. The feeding device comprises a base, a set of barrel bodies, a feeding assembly anda frame body, wherein the frame body comprises a conical supporting sleeve, a plurality of supporting plates are fixed to the bottom surface of the conical supporting sleeve, the conical supporting sleeve is fixed to the frame body through the supporting plates, and a reinforcing ring is fixed to the top surface of the conical supporting sleeve through a plurality of connecting plates. Accordingto the invention, by arranging the liquid level sensors, the liquid level heights of the agents in the first cavity and the second cavity can be detected; by matching the single chip microcomputer andthe electric switch valve, the opening and the closing of the first discharge pipe and the second discharge pipe can be controlled, so that the outputs of the materials in the first cavity and the second cavity can be achieved; and during the use, the material in the second cavity is directly output after the material in the first cavity is conveyed, so that the standby function can be achieved,and the problem of low feeding efficiency caused by the insufficient material in the existing feeding device is solved.

The invention relates to an intelligent electronic station board with screen toggling and blocking functions. The intelligent electronic station board comprises a main body, a base and a display window, and further comprises a toggling mechanism and a blocking mechanism, wherein the toggling mechanism comprises a toggling assembly and a cleaning assembly, and the blocking mechanism comprises a rotary plate, a second motor, an air cylinder, a moving block, an expansion bracket, a moving plate and blocking cloth. In the intelligent electronic station board with the screen toggling and blocking functions, through the toggling mechanism, a good electronic screen is enabled to replace a faulted electronic screen to appear on the display window, a standby effect can be achieved, and convenienceis brought to use of passengers; in the toggling process, a cleaning brush can remove dust and stains on the electronic screen, and it is convenient for the passengers to identify vehicle information;through the blocking mechanism, the electronic screens can be protected from the sun and the rain, the influence, caused by external environment factors, on information display of the electronic screens is reduced, the passengers more conveniently observe traffic information, and the practicability and the reliability of the electronic station board are greatly improved.