42results about How to "Avoid area" patented technology

The invention relates to the technical field of optical engineering, in particular to a stray light suppression structure and method.The stray light suppression structure structurally and mainly comprises a front suppression structure and a rear suppression structure, the front suppression structure is located at the front end of an optical system and covers all light entering the system, and the rear suppression structure is located in the middle of a light path and covers all light entering the system; the front suppression structure and the rear suppression structure are the same in shape and arrangement, but the size of the front suppression structure is reduced in proportion to adapt to the clear aperture of the light path position where the rear suppression structure is located, and the surfaces of the front suppression structure and the rear suppression structure are both coated with extinction paint to prevent stray light from continuing to interfere with system imaging after reflection or scattering on the surfaces. According to the invention, through the design of partitioning the clear aperture by the partition plate, the passing angle of light can be more accurately controlled, stray light can be inhibited, and the imaging quality of an optical system and the quality in a light beam propagation process are enhanced.

The utility model relates to a blast furnace main iron runner cover which comprises a cover body composed of a shell and a refractory lining, the cover body is arched, a plurality of air holes are formed in the cover body, flaring sections are arranged at the two ends of the cover body, an outer retaining wall and an inner retaining wall are arranged at the two ends in the cover body along the inner wall respectively, the outer retaining wall and the inner retaining wall are arranged at intervals, and the outer retaining wall and the inner retaining wall are the same in structure. Comprising a metal wall plate, the metal wall plate is fixedly connected with a shell, a refractory material layer covers the metal wall plate, the refractory material layer and a refractory material lining form an integrated structure, and an arch-shaped channel is formed in the middle of an outer retaining wall and the middle of an inner retaining wall. The trumpet-shaped flaring can enlarge the coverage area and the shielding area, prevent air convection interference and dust escape, prevent particles entering the main iron runner cover from scattering, and improve the slag iron splashing and sucking effect. The outer retaining wall and the inner retaining wall can forcibly control the spraying speed of molten slag and iron, and kinetic energy and impact force are reduced.

The application discloses a power transmission coupling device of a high-power diesel generator set, which comprises a moving and carrying trolley, a first axial pushing mechanism arranged on the moving and carrying trolley and located below a motor rotor, a lifting part capable of lifting and a bearing contact part rotatably arranged on the top of the lifting part, a plurality of ball bearings are arranged on the bearing contact part, the bearing contact part is used for bearing the motor rotor in a drooping state and allowing the motor rotor to rotate and reset to axial flatness, and an axial butt joint moving and carrying mechanism arranged on the moving and carrying trolley, the axial butt joint moving and carrying mechanism comprises a butt joint shaft capable of horizontally moving and rotating, and a convex block is arranged on the butt joint shaft. The device solves the problem that the axial flatness of the motor rotor is maintained during the installation process of the motor shell, the uniform gap between the inner wall of the motor shell and the outer circular surface of the motor rotor is maintained, the large-area contact and sliding jam caused by the drooping of the rotor are avoided, the anti-corrosion coating or the insulating layer on the outer surface of the motor rotor is prevented from being scratched and peeled off, and the insulating reliability and the internal cleanliness of the generator are ensured.

The application provides a multifunctional static synchronous compensator system, comprising: a plurality of three-phase converter valves, input ends of each three-phase converter valve being connected to a common DC bus; an energy storage valve, being connected in parallel with the three-phase converter valve, and the plurality of three-phase converter valves sharing the energy storage valve through the common DC bus; a switch breaker device, being arranged between the three-phase converter valve and the energy storage valve; and a control unit, being connected with the plurality of three-phase converter valves, the energy storage valve and the switch breaker device respectively. The application also provides a method for operating the multifunctional static synchronous compensator system. The multifunctional static synchronous compensator system provided by the application adopts back-to-back converter valves, shares energy storage elements through a common DC bus, and connects two AC buses to the two sides of the converter valve, so that the system can support the two AC power grids, greatly save the installation capacity of the energy storage elements in the energy storage valve, and provide power interconnection between the two AC power grids and play a role in tidal flow control.

A display panel (1403) includes a display area (DA) and a peripheral area (PA) surrounding the display area (DA). The display area (DA) includes a second area and a first area that includes first pixel units disposed around holes (101, 104, 106, 304, 904, 1004, 1104, 1304), where the second area includes second pixel units and K data lines (905, 1005, 1105, 1305). The second pixel units include M columns*N rows of light emitting devices (501, 801), M*N bottom drive circuits (502, 804) located at lower layers of the light emitting devices (501, 801), and M*N anode leads (503) connecting the light emitting devices (501, 801) to the bottom drive circuits (502, 804). Intervals (D3, D3', D3") between some or all of the adjacent light emitting devices (501, 801) are greater than dimensions of the bottom drive circuits (502, 804) corresponding to the light emitting devices, and therefore there are gaps (504, 701) between the some or all of the second pixel units. The K data lines (905, 1005, 1105, 1305) are used to pass through the gaps (504, 701) to connect Q columns of second pixel units including the second pixel units corresponding to the holes (101, 104, 106, 304, 904, 1004, 1104, 1304) in a column direction, where Q is not greater than K. Therefore, data lines (302, 404, 902, 1002, 1102, 1302) corresponding to the holes (101, 104, 106, 304, 904, 1004, 1104, 1304) in the column direction pass through the gaps (504, 701) in the second area without occupying space of the first area, so that transmittance is improved.

The invention provides an inversion control system, an inverter and charging equipment. The inversion control system comprises a power supply module, an inversion assembly, a control unit, a feedback module, a protection unit and an automatic adjustment module. The power module is used for providing direct-current power; the inversion assembly is connected with the power supply module and is used for converting the direct-current power supply into an alternating-current power supply; the control unit is connected with the inversion assembly and used for controlling the on-off state of the inversion assembly so as to adjust the voltage and frequency of the output alternating current power supply; the feedback module is connected with the control unit and is used for detecting the voltage and frequency of the output alternating current power supply and feeding back a detection result to the control unit; the protection unit is connected with the control unit and used for protecting the output alternating current power supply when the output alternating current power supply is abnormal; and the automatic adjusting module is used for automatically adjusting the parameters of the inversion assembly according to the operation state and the load requirement of the system so as to optimize the performance of the output power supply. The beneficial effect of the invention is that the method can automatically adapt to and change when the adaptive current is unstable.

The invention discloses a broadband tunable receiver, which includes a low noise amplifier unit, a mixer unit, and an active low pass filter unit, wherein: the mixer unit includes a mixer 1 and a mixer 2; the active low pass filter unit includes an active low pass filter 1 and an active low pass filter 2; the output positive end of the low noise amplifier is simultaneously connected to the input positive ends of the mixer 1 and the mixer 2, and the output negative end is simultaneously connected to the input negative ends of the mixer 1 and the mixer 2; the output negative end of the mixer 1 is connected to the input positive end of the active low pass filter 1, and the output positive end is connected to the input negative end of the active low pass filter 1; the output negative end of the mixer 2 is connected to the input positive end of the active low pass filter 2, and the output positive end is connected to the input negative end of the active low pass filter 2. The invention has the characteristics of high gain, high bandwidth, high linearity, and low noise on the basis of realizing signal reception, down conversion, and clutter suppression.

The overflow gate capable of regulating and controlling the water level comprises a stone barge wall, a gate groove is formed in the inner side of the stone barge wall, a gate plate is installed in the gate groove, the gate plate is composed of an upper gate plate and a lower gate plate, and the upper gate plate is connected with the lower gate plate through a linkage connector. Rubber sealing plates are installed at the joints of the two sides of the upper gate plate and the lower gate plate and the gate grooves. In order to ensure the normal water level of the inland river, the gate dam is arranged at the junction of the inner river and the outer river, the two gate plates are overlapped at ordinary times, and water exceeding the normal water level overflows and is discharged from the gate top; when the water level of the outer river rises to exceed the water level of the inland river due to extra-heavy rainstorm, the upper gate can be lifted to prevent the water of the outer river from flowing backwards, the water level of the inland river can be reduced by adopting a forced drainage facility, and urban inland inundation caused by rising of the river water is avoided; when emptying is needed for inland river maintenance and dredging, the upper flashboard can be lifted, the lower flashboard is driven through the linkage connector, and therefore the purpose of emptying water is achieved.

The utility model belongs to the technical field of livestock breeding equipment, particularly relates to an excrement dry-wet separation and collection device for a cattle and sheep farm, and provides the following scheme aiming at the problems that a simple filter screen is adopted for filtering, and for cattle and sheep excrement with large viscosity, the filter screen is easy to block and the separation effect is influenced. The dry-wet feces separation and collection device for the cattle and sheep farm comprises a separation box, and a filter plate and a drainage plate are arranged in the separation box from top to bottom; the utility model has the beneficial effects that the hydraulic rod is connected with the drainage plate, and when the hydraulic rod is started to enable the drainage plate to rise, the top blocks on the surface of the drainage plate, which accurately correspond to the filter holes of the filter plate, can be inserted into the filter holes one by one, so as to quickly and effectively push out blocked impurities, and ensure that the filter plate always keeps good filtering performance; dry-wet preliminary separation is continuously and efficiently achieved, the overall separation efficiency is greatly improved, and the sewage drainage speed is increased through the inclined drainage channel.

The multifunctional clamp for the robot comprises a supporting frame, a suction cup installation base is arranged at the bottom of the supporting frame, a first suction cup is arranged at the bottom of the suction cup installation base, swing arms are symmetrically connected to the two sides of the supporting frame, and second suction cups are connected to the bottoms of the swing arms. The swing arm drives the second suction cup to turn over through the telescopic device. The clamp is provided with the second suction cup and the first suction cup, the small box can be sucked through the second suction cup to be placed in the packaging box, after packaging of the packaging box is completed, the telescopic device drives the swing arm to drive the second suction cup to turn over, and then the packaging box can be sucked through the first suction cup to be transferred to the needed position; by means of the mode, the robot is provided with a single clamp to integrate the double functions of small box adsorption boxing and packaging box transferring, and the problem that in a traditional scheme, two independent robots and clamps need to be arranged, so that the equipment cost is increased, and the occupied area is increased is effectively solved.

The utility model provides an outdoor anti-freezing ground, relates to the field of ground anti-freezing, and adopts the technical scheme that the outdoor anti-freezing ground comprises a base layer, an upper base layer is arranged at the upper part of the base layer, a heating coil is arranged on the upper base layer, a surface layer is arranged at the upper part of the upper base layer, and two ends of the heating coil are communicated with an indoor heating pipeline through valves. According to the utility model, ground temperature can be raised through heating, formation of a snow accumulation layer and icing of surface accumulated water are avoided, a good anti-freezing effect is achieved, and safe driving of a tested vehicle is ensured.

The utility model relates to the technical field of forging die, especially to a forming die of heat pipe support, including the upper die plate and lower die plate of each other corresponding cooperation, the one end of upper die plate faces the lower die plate and is equipped with male die part, the one end of lower die plate faces the upper die plate and is equipped with female die part, when forging and pressing form, male die part and female die part each other butt joint, make male die part insert female die part, form the forming area of heat pipe support, through specific spacing structure between the upper die plate and lower die plate keep the clearance of preset height in the side of female die part, thereby form the extension area, the extension piece of heat pipe support one side is forged and pressed and forms. Above all, the utility model discloses an innovative structure design, reduces the cost, promotes the efficiency, realizes the integrated precision forming of heat pipe support multi -position complex structure, and the product performance and production economy are improved significantly.

This utility model relates to the field of aluminum single-panel production technology and discloses a rapid curing device for water-based coatings on aluminum single-panel curtain walls. The device includes a curing box, with hinges fixedly connected to the outside of the curing box, and a box door fixedly connected to the outside of the hinges. A four-corner fixing mechanism is fixedly connected to the bottom inside the curing box, and a heat dissipation and exhaust mechanism is fixedly connected to the outside of the curing box. The four-corner fixing mechanism includes a processing table, with its bottom fixedly connected to the bottom inside the curing box. A drive assembly and a guide assembly are fixedly connected to the inside of the processing table. In this utility model, the four-corner fixing mechanism uses a drive motor and a cross-shaped rotating block to drive the four-corner clamps to clamp the four corners of the aluminum single-panel. Anti-protrusion suction cups provide reinforcement, achieving stable fixing, preventing displacement and protrusion, ensuring accurate positioning, reducing contact area, avoiding indentation damage, improving curing quality, and reducing processing defects.

The invention relates to a multimedia task processing method and device, computer equipment, a chip and a chip module, relates to the technical field of systems on chip, and can give consideration to resource utilization efficiency and function expansion flexibility when processing multimedia tasks. The method comprises the following steps: determining a first function module related to a multimedia task from a plurality of function modules of a chip according to a task intention of the multimedia task to be processed; in response to the fact that the first function module comprises a hardware function module and a programmable module, configuring the programmable module according to a pre-acquired software program to obtain a plurality of second function modules; the plurality of second function modules comprise a hardware function module and a configured programmable module; and reconstructing the interconnection paths of the plurality of second function modules, and transmitting data streams of the second function modules among the plurality of second function modules according to the reconstructed first interconnection paths in the process of executing the multimedia task by using the plurality of second function modules.

The invention relates to the field of workpiece spraying, in particular to a high-temperature spraying shielding area protection method which comprises the following steps: S1, taking a first protection sheet and a second protection sheet; s2, a first protection sheet is firstly attached to the workpiece, then a second protection sheet is also attached to the workpiece, one end of the second protection sheet is pressed above the first protection sheet, and the first protection sheet and the second protection sheet jointly cover the shielding area; s3, spraying is conducted, specifically, the paint is sprayed to the workpiece; s4, drying is conducted, specifically, the sprayed workpiece is dried, and the end, located above the first protection piece, of the second protection piece is warped upwards according to the material characteristics and the structural characteristics designed in the invention; s5, tearing the upwarp end of the second protection sheet, and tearing down the second protection sheet; s6, the end, covered with the second protection sheet, of the first protection sheet is torn off, and the first protection sheet is torn off. According to the scheme, the problem that the protective sheet is covered by the coating curing layer and is not easy to tear off after the coating is sprayed is solved.

The present invention relates to a method of preparing a positive electrode active material for a lithium secondary battery, and more particularly, to a method of preparing a positive electrode active material for a lithium secondary battery, which is able to improve electrochemical properties and stability by controlling the specific surface area of a positive electrode active material.

The utility model discloses a middle frame C-angle step edge pressing device, and belongs to the technical field of electronic equipment machining. A middle frame C-angle step edge pressing device comprises a base plate, a pressing plate, a pressing plate and a pressing plate, the mounting table is arranged on the base plate, a jig head is arranged on the mounting table, and the working end of the jig head is used for being attached to the side edge of the middle frame; the lower die is arranged above the ball assembly, the upper die is matched with the lower die, the upper die and the lower die are used for clamping the middle frame, and the upper die and the lower die move on a plane above the ball assembly; according to the automatic edge pressing device, automatic edge pressing operation on the C-angle step of the middle frame can be achieved, it is guaranteed that the surface of a mobile phone metal middle frame spraying part is smooth, the overall quality is improved, automation can be achieved through the whole device, manpower is replaced by a machine, efficiency and productivity are greatly improved, and quality stability is guaranteed.

The invention discloses a device for precisely dicing and transplanting rice seedlings with soil, and particularly relates to the field of agricultural planting.The device comprises a machine body, a feeding and dicing mechanism is arranged on the machine body, the feeding and dicing mechanism comprises a rack arranged on the machine body, and a longitudinal feeding assembly and a transverse feeding assembly are arranged on the rack; the longitudinal feeding assembly is used for longitudinally conveying seedling trays; a transverse cutting assembly and a longitudinal cutting assembly are further arranged on the rack, the transverse cutting assembly is used for cutting the seedling tray into a plurality of strip-shaped seedling strips in the transverse direction, the transverse feeding assembly is used for transversely conveying the strip-shaped seedling strips, and the longitudinal cutting assembly is used for longitudinally cutting the strip-shaped seedling strips into a plurality of single-plant seedlings. By arranging the feeding and dicing mechanism, the seedling tray is cut step by step, the impact force is small, the vibration is slight, the cutting action is continuous, the interference to adjacent non-cut areas is extremely small in the cutting process, large-area pulling and vibration damage to root systems is avoided, and the damage to seedlings during cutting is reduced.

The utility model relates to the technical field of bridge design and construction, and provides a structure beneficial to hollow slab hinge joint pouring and shear connection. The hinge joints are formed by a plurality of hollow slabs at certain intervals in the width direction. The hinge joint distance of a traditional hollow slab is increased, the hinge joint participates in shear resistance within the full height range, the U-shaped steel plate is arranged at the position of the bottom plate of the hollow slab, and the steel plate is squeezed into a notch reserved in the bottom plate through elasticity of the steel plate to serve as a bottom die for pouring hinge joint concrete and plays a role of a dripping eave in the operation period. Shear-resistant assemblies which are arranged in a staggered mode are embedded in webs, facing the hinge joints, of the hollow slabs, and each shear-resistant assembly is composed of a perforated steel plate embedded in the corresponding hollow slab, a connecting steel plate and an outwards-extending shear nail. By means of the measures, the shear-resistant area, the pouring quality, the shear-resistant strength and the attractiveness of the hollow slab hinge joint are improved; the technical problems that in the prior art, a gap of only 1 cm exists between every two adjacent hollow plate bottom plates, hinge joint concrete is difficult to pour, the connection strength is poor, and water seepage is prone to occurring are solved.

The utility model discloses an anti-shake combined chopstick spoon which comprises a shell, a mounting plate is fixed in the shell, a first gear and a second gear which are symmetrical are rotationally arranged on the mounting plate, a rack is arranged between the first gear and the second gear, fixing blocks are fixed to the top of the first gear and the top of the second gear, and the first gear and the second gear are fixed to the mounting plate. A chopstick head is fixed to the outer wall of the fixing block, the rack is meshed with the first gear and the second gear, a pressing mechanism for moving the rack is mounted on the mounting plate, a connecting rod is in threaded connection with the side, away from the chopstick head, of the mounting plate, and a spoon head is fixed to the end, away from the chopstick head, of the connecting rod. The pressing mode convenient to use is combined with the mode that the shell is held by hand, the stable handheld function is achieved, the problem that traditional chopsticks clamped by fingers shake due to the small stress area is solved, and the handheld chopstick is suitable for being used by Parkinson patients or people with poor finger control force.

The present invention relates to the technical field of moissanite production, and in particular to a method for manufacturing colorless moissanite with high efficiency and high production capacity, the method comprising the following steps: (S.1) cutting semi-insulating seed crystals to obtain seed crystals with regular shapes; (S.2) coating glue on the surface of the seed crystals with regular shapes and arranging and splicing them to obtain large-sized spliced ​​seed crystals; (S.3) bonding the large-sized spliced ​​seed crystals to the surface of a flexible substrate, and then coating glue on the other side of the flexible substrate; (S.4) bonding the flexible substrate together with the large-sized spliced ​​seed crystals in a physical vapor deposition device, and depositing silicon carbide crystals on the surface of the large-sized spliced ​​seed crystals by physical vapor deposition, thereby forming colorless moissanite. In the present application, small-sized seed crystals are cut and spliced ​​into large-sized spliced ​​seed crystals, and the seeds are bonded to the surface of a flexible substrate for deposition, thereby reducing the loss rate of moissanite while improving the preparation efficiency of colorless moissanite.

The invention discloses a superconducting power transmission line fault detection method based on superconducting and electromagnetic induction, and relates to the technical field of superconducting power transmission line fault detection, and the method comprises the steps: S10, collecting a magnetic field change time sequence of a target superconducting power transmission line at each layout position point in real time through an electromagnetic induction monitoring device; s20, constructing a reference data matrix; s30, extracting key feature vectors of the target superconducting power transmission line at each end point of the fault position section; s40, determining a fault positioning training set of the target superconducting power transmission line at each end point of the fault position section; s50, analyzing a fault positioning position point of the target superconducting power transmission line; s60, predicting the real-time fault index of the target superconducting power transmission line; and S70, carrying out operation and maintenance processing on the target superconducting power transmission line. According to the invention, the special properties of the target superconducting power transmission line are fully considered, and the limitation of a traditional fault detection method in the superconducting power transmission field is overcome.

The invention discloses a cover sealing and sticking device and method for hardcover books. The cover sealing and sticking device comprises a workbench, fixing plates are installed in the middle of the top face of the workbench, and a glue storage box, a glue uniformizing roller and a glue spreading roller are sequentially arranged between the front fixing plate and the rear fixing plate from top to bottom; the area adjusting assembly is arranged on the glue storage box and the first air outlet pipe, and the area adjusting assembly adjusts the position and the area of a glue outlet of the glue storage box according to the actual gluing part and the area of the leather shell; and the glue discharging control assembly is arranged on the glue uniformizing roller and the second air outlet pipe, and the glue discharging control assembly is controlled to keep the glue discharging uniformity in the process that the glue storage amount is gradually reduced. According to the cover sealing and sticking equipment and method for the hardcover books, in the using process, the gluing position and area size can be adjusted according to the specific specification of a cover, the cover sealing and sticking quality is improved, and in the process of reducing glue consumption, uniform glue discharging pressure is kept for glue discharging.

This invention relates to a single-event latch-up evaluation method for advanced process technologies, comprising: constructing a high-energy particle incident model using the Geant4 Monte Carlo simulation tool; constructing and calibrating a three-dimensional basic device model using the TCAD simulation tool; constructing a standard cell circuit containing parasitic effects, extracting the parasitic thyristor structure of the standard cell circuit, and identifying sensitive regions of the parasitic thyristor structure; performing transient effect simulation on the identified sensitive regions based on the high-energy particle incident model to confirm whether latch-up is triggered; introducing anti-latch-up hardening measures for the sensitive regions, and performing simulation verification on the hardened standard cell circuit under the high-energy particle incident model; if the hardened standard cell circuit does not trigger latch-up, the anti-latch-up hardening measures are deemed effective. This method provides a systematic and automated solution that can fundamentally characterize the complex parasitic effects of advanced devices.

The invention discloses a method for step-by-step transition adjustment of traffic organization for road full closure construction, which relates to the technical field of traffic management and control, including obtaining checkpoint passing data, intersection signal control scheme data and intersection channelization data of the surrounding intersections of the construction section for nearly one month, and gradually reducing the traffic flow leading to the construction section from all directions of the upstream and downstream intersections of the construction section by adjusting the traffic signal timing and the direction of the import lane before the road is fully closed for construction, so as to achieve the purpose of gradually reducing the traffic flow of the construction section, and then gradually adjusting the traffic organization of the surrounding intersections where the traffic flow of the construction road is gradually reduced. In this way, on the one hand, the gradual flow reduction leaves a gradual adaptation process for the driver, and on the other hand, it can effectively ensure the feasibility of the traffic organization scheme of the surrounding intersections, thereby avoiding the occurrence of large-scale traffic congestion or traffic paralysis.

The invention provides a tensor arithmetic unit based on an RISC-V instruction set, and the tensor arithmetic unit comprises a microinstruction splitting and scheduling unit which receives a decoded macroscopic tensor instruction and an operation size parameter thereof, splits the macroscopic tensor instruction into microinstruction sequences according to a fixed physical scale of a reconfigurable calculation array, and transmits the microinstruction sequences to the reconfigurable calculation array; a zigzag traversal sequence and microinstruction scheduling are achieved through quintuple hardware circulation, and the loading, using and replacing sequence of the data blocks in the block register array is planned; the reconfigurable computing array is used for executing matrix multiply-accumulate operation of various data formats by designing a reconfigurable data path and fusing and multiplexing a floating point multiplier and a multi-precision accumulation tree under data paths with different bit widths; and the hardware multi-buffer unit is a multi-buffer architecture automatically managed by hardware and is matched with a zigzag traversal sequence to realize pipeline overlapping of data prefetching and calculation execution. The invention further provides an intelligent processor. Therefore, the invention can efficiently execute tensor operation with variable precision and variable scale.

The present invention provides a semiconductor device and a method for preparing the same. A composite contact between a bit line and a semiconductor substrate (i.e., a source / drain region) is formed by stacking a metal contact and a polysilicon contact in sequence, thereby reducing the contact resistance between the bit line and the semiconductor substrate (i.e., the source / drain region). The present invention can also avoid the problem in the prior art that when the polysilicon contact is basically below the bit line, lateral etching during the process of etching the polysilicon contact below using the bit line (i.e., the bit line in a memory) as a mask causes the cross-sectional area of ​​the middle section of the polysilicon contact to become smaller and the resistance value to increase.

The utility model relates to the technical field of new energy automobiles, in particular to an intelligent fire extinguishing system for parking of a new energy automobile, which comprises a plurality of parking units which are independently arranged and are connected with an MCU (Microprogrammed Control Unit) control center, and the MCU control center is connected with a remote monitoring terminal; a cofferdam is arranged on the parking ground, a temperature sensor and an infrared sensor are arranged on the surface of the parking ground, a smoke sensor is arranged on the bottom face of the parking ceiling, the smoke sensor, the temperature sensor and the infrared sensor are connected with the MCU control center, a water inlet pipe is arranged on the parking ground, and an electromagnetic valve is arranged on the water inlet pipe. And the electromagnetic valve is connected with the MCU control center. Compared with the prior art, the intelligent fire extinguishing system for parking of the new energy automobile can quickly and timely discover abnormal conditions of the automobile and extinguish fire by adopting effective measures, so that the safety of other parts of the automobile is protected to the maximum extent, and accident loss and social influence are reduced; and environmental pollution caused by a large amount of fire-extinguishing sewage is avoided.

The invention belongs to the technical field of communication networks, and provides a communication loop fault detection method in a communication network, which comprises the following steps of: starting a link layer neighbor discovery protocol at each physical port of looped network node equipment, and acquiring an opposite-end neighbor equipment identifier and a port identifier which are actually connected with each port; progressive faults such as laser aging and emission light power degradation can be found in time by monitoring the sending light power value of the optical module and the bias current value of the laser in real time, the blind area that a traditional detection mechanism only depends on receiving light power monitoring is broken through, meanwhile, a secondary verification mechanism is arranged, and after degradation of the optical module is monitored, the detection accuracy is improved. According to the method, protection switching is not executed immediately, and whether the link has an actual bidirectional communication fault is further verified through the bidirectional connectivity detection protocol, so that misjudgment caused by short-time fluctuation of parameters of the optical module is effectively avoided, early warning of potential faults is realized, and the reliability of the optical module is improved. And the stability of the network when the optical module is degraded but the link can still perform normal communication is ensured.