66results about How to "Meet special needs" patented technology

The invention discloses a smart home energy management optimization method in an Internet of Things environment. According to the method, the Internet of Things technology is utilized, intelligent identification and classified management are carried out on equipment, multiple energy management strategies are preset, and a user can conveniently and autonomously adjust; energy data is monitored in real time through a sensor and an intelligent electric meter, an energy consumption rule is mined by using a big data analysis technology, and a demand trend is predicted; constructing an intelligent energy dispatching center, and formulating a dynamic energy distribution scheme by using an optimization algorithm; a mobile phone application and an intelligent control panel are developed, and a user is supported to check data, control equipment and carry out personalized customization; and meanwhile, equipment firmware upgrading and remote management are realized. According to the invention, energy consumption can be reduced, cost can be controlled, equipment collaboration and energy distribution efficiency can be improved, user experience can be enhanced, system maintenance and upgrading are facilitated, and intelligent household energy management is more efficient, intelligent and flexible so as to adapt to diversified household requirements.

The invention discloses a control method and system for DPF operation regeneration of a special vehicle, and the control method comprises the steps: obtaining a vehicle state parameter through an ECU, and judging whether the vehicle state parameter meets a DPF regeneration triggering request or not; and if the DPF regeneration triggering request is met, the running state of the vehicle is judged, and an idling state or an operation state is generated. And if the running state of the vehicle is the operation state, the ECU reminds a driver whether to enter a regeneration mode or not. And if the driver confirms to enter the regeneration mode, the engine enters the DPF regeneration mode to execute operation. And after DPF regeneration succeeds or fails, the engine quits the DPF regeneration mode. Therefore, according to the control method for DPF operation regeneration of the special vehicle, by adding the whole vehicle operation state parameter judgment conditions, DPF regeneration can be completed without stopping operation when the special vehicle continuously operates in the static state.

The invention discloses a nursing information distribution management system based on big data, and relates to the technical field of information distribution management, and the system comprises a data collection module which is used for collecting original data from a nursing data source in real time and cleaning the original data, the original data comprises patient information, nursing records, resource use conditions and nursing personnel capabilities; the data acquisition module is connected with an external system through an API (Application Program Interface); the nursing information distribution management system based on big data can comprehensively evaluate the skill level and professional ability of nursing personnel, update skill archives, and provide an accurate basis for personnel deployment; appropriate nursing personnel are allocated to appropriate tasks, so that the quality and the specialty of nursing services are improved; optimal allocation of resources and nursing personnel is realized; resource preparation is made in advance, resource waste and shortage are avoided, and the resource utilization rate is increased.

The invention relates to the technical field of medical diagnosis accompanying services, and discloses an order matching calculation method for diagnosis accompanying services, which is used for optimizing the distribution and matching process of the diagnosis accompanying services. The method comprises the following steps of setting patient information, when the patient information is generated, marking the patient information as an accompanying diagnosis event, enabling one piece of patient information to correspond to one accompanying diagnosis event, collecting disease condition keywords, obtaining patient disease condition filling content information in the accompanying diagnosis event, and collecting disease condition keywords in the patient disease condition filling content information, the method comprises the steps of forming a set, setting an illness condition keyword library and danger degrees, executing a first person screening strategy according to an illness condition danger degree value of a patient and accompanying diagnosis person information in an accompanying diagnosis person set, generating a first target person set, executing a first order matching strategy according to the first target person set, and generating an accompanying diagnosis service order. And when the diagnosis accompanying service cycle corresponding to the diagnosis accompanying service order is finished, executing a personnel score optimization strategy.

The invention discloses a Java-based intelligent document generation method, and belongs to the technical field of intelligent generation, and the method comprises the steps: S1, constructing a deep learning model: constructing a natural language processing model based on large-scale legal text data set training by using a deep learning framework integrated by a Java platform, the natural language processing model is used for understanding complex legal concepts, terms and logic relations, in the method, deep law understanding ability is achieved, deep understanding of legal texts is achieved through application of the deep learning model, a shallow processing mode of traditional template filling is exceeded, efficiency is improved, the legal document preparation time is greatly shortened, and the method is suitable for popularization and application. The workload of legal professionals is reduced, the accuracy is enhanced, document errors and omissions are reduced, the specialty and compliance of legal documents are ensured, standardization is promoted, the standardized process of legal document writing is pushed, the consistency and quality of legal services are improved, personalized services are achieved, and the special requirements of specific clients or cases are met.

The invention relates to the technical field of computer engineering, and discloses an organizable modular neural architecture searching method and system.The organizable modular neural architecture searching method comprises the steps of building a modular searching space, defining task types and feature parameters, determining the task types based on rules, collecting and defining network components, and verifying and sorting the network components; creating an initial search space and setting hyper-parameters of the components; the search space and the search strategy are dynamically adjusted, and the search process is optimized in real time according to task requirements; parameter adjustment and objective function estimation are carried out through real-time monitoring and optimization strategies. According to the invention, through modularized search space, flexible and efficient neural network architecture design is realized. The predefined module reduces search complexity, improves efficiency, allows a user to customize components, and enhances network flexibility. And dynamic adjustment of a search strategy and real-time monitoring ensure automatic design optimization, and model performance and stability are improved.

The invention provides a voice interaction method and device, a storage medium and electronic equipment, and relates to the technical field of voice interaction. The method comprises the following steps: acquiring voice input by a user, and converting the voice into a voice signal; preprocessing the voice signal, and determining the characteristics of the voice signal; inputting the characteristics of the voice signals into a pre-trained keyword model, and outputting keywords; and obtaining corresponding data in a database according to the keyword, rendering the corresponding data in the database on a front-end page, and displaying a voice interaction result. According to the method, feature extraction and keyword recognition are carried out on the voice input by the user, corresponding data of the database are called according to the keywords to be rendered at the front end, accurate man-machine interaction can be carried out on the terminal according to the voice of the user, the special requirements of the user are met, and the user experience is improved.

The invention provides a photodiode chip preparation method and device and a photodiode chip, and the method comprises the steps: carrying out the etching of a current epitaxial wafer, forming a trench window, enabling a second region where the trench window is located to be located outside a first region, and enabling the second region to surround the first region, a groove window penetrates through the P ohmic contact layer, the diffusion window layer, the intrinsic absorption layer and the N-type material contact layer, and the groove window is located on the InP substrate layer; growing an anti-reflection film on the current surface layer; etching the P ohmic contact area to obtain a P window, and leading out a P electrode at the P window; growing a metal reflecting film on the groove window and the edge extension area of the groove window; and manufacturing an N electrode on the back surface of the InP substrate layer to form a photodiode chip. According to the technical scheme, the responsivity of incident light with the wavelength of 1310 nm can be improved, the quantum efficiency reaches 98% or above, the responsivity of incident light with the wavelength of 300-755 nm is reduced, the quantum efficiency is smaller than 2%, and the special requirement of an optical detection sensing chip is met.

The invention discloses a construction method for an ultra-large-area seamless prestressed concrete terrace, which comprises the following steps of: S1, excavating a foundation layer to an original soil design elevation, and constructing a foundation layer cement macadam stable layer on the foundation layer; s2, a PE damp-proof film is laid on the base cement macadam stable layer; s3, a sand slippage layer is laid, and a PE damp-proof slippage film is laid on the sand slippage layer; s4, integral seamless concrete slab construction is carried out; and S5, finally, a flexible polyurethane carving-resistant section layer is constructed on the seamless concrete slab so as to provide surface protection and attractive effects. According to the construction method for the ultra-large-area seamless prestressed concrete terrace, the common problems of cracking, insufficient flatness, limited bearing capacity and the like in large-area terrace construction are effectively solved by introducing a prestress technology and a seamless design concept; and meanwhile, for floor construction of a shielding area, specific measures are taken to meet special insulation and grounding requirements.

The invention discloses an eye color sense function detection system and method fusing VR and artificial intelligence. The system comprises VR terminal equipment, a data storage module, an artificial intelligence processing module and a power supply module. Wherein the VR terminal equipment comprises a VR head-mounted display, an infrared eye movement tracking camera, a host control system and an interactive input handle; the data storage module is used for storing detection data; the artificial intelligence processing module is used for performing color vision disorder qualitative analysis, color vision disorder quantitative analysis and color vision disorder and fundus problem association evaluation on the detection data to obtain an evaluation result; and the power supply module is connected with the VR terminal equipment, the data storage module and the artificial intelligence processing module and is used for providing power supply guarantee. According to the method, interference of subjective factors is reduced, the detection accuracy is improved, the automatic detection process and the intelligent data analysis capability of the system are improved, and the detection time is greatly shortened.

The invention belongs to the technical field of functional food, and particularly relates to a nutritional supplement composition containing various vitamins and mineral substances. The nutritional supplement composition comprises the following components: black pure fat chocolate, vitamin A, vitamin D3, vitamin E, vitamin B1, vitamin B2, vitamin B6, vitamin B12, vitamin C, folic acid, nicotinamide, biotin, calcium pantothenate, heavy magnesium carbonate, ferrous fumarate, zinc gluconate, sodium selenite, copper sulfate, potassium iodide, manganese gluconate and calcium carbonate. The preparation method comprises the following steps: preparing a powder premix; then adding the powder premix into the molten black pure fat chocolate and stirring; the materials are prepared into an inner core containing vitamins and mineral substances through a chocolate forming machine, and then the inner core is coated. The multivitamin mineral sugared pill product provided by the invention is good in taste and stable in effective components, and can effectively relieve fatigue, promote physical and psychological health, improve sleep and improve memory.

The utility model discloses a deformation monitoring surveying and mapping device capable of automatically alarming, which comprises a detector and a detection plate, a levelness adjusting structure and a protective structure are mounted on the detection plate, and the detector is mounted on the protective structure on the detection plate; the utility model relates to the technical field of monitoring surveying and mapping, the design of the protective ball arc sleeving block can fully utilize the kinetic energy of falling particles, and the kinetic energy is converted into the elastic deformation of the spring through the rotational motion of the protective ball arc sleeving block, so that the kinetic energy is effectively consumed and buffered, and possible impact and damage are prevented; the rotary arc shaft and the sleeved arc spring are combined for use, so that additional rotary buffering is provided, and the stability and the reliability of the whole buffering system are enhanced; and repulsion buffering circular ring magnets are introduced, the rotation effect of the protection ball arc sleeving block is further enhanced through mutual repulsion force, and the kinetic energy conversion efficiency is improved.

The invention discloses a lightweight embedded implementation mechanism of a Rogowski coil inter-phase interference compensation MFNN method, and the mechanism comprises the steps: training an MFNN model, and achieving the Rogowski coil inter-phase interference compensation; floating-point number parameters of the MFNN model are lightened, and memory occupation and calculation amount of the model are reduced; reproducing an MFNN model structure by using a C language and realizing parameter loading, and reproducing an inference result of the MFNN model under the Pytorch framework; mFNN model reasoning based on the C language is optimized through parallel computing; and deploying a C language-based parallel computing MFNN model in an edge computing environment to realize the real-time compensation of the inter-phase interference of the Rogowski coil.

The utility model relates to the technical field of blood disease patient transplantation, and disclose a foot bath bag of paronychia, including waterproof bag, the inside of waterproof bag is equipped with soft glue frame, the top of waterproof bag is fixedly connected with additional belt, the outer wall of additional belt is sleeved with restraint band, the inside of restraint band is inserted with winding rope, the outer wall of winding rope is connected with adjusting block, the bottom of waterproof bag is connected with fixing frame. The foot bath bag of paronychy, through the cooperation setting of waterproof bag, soft glue frame and additional belt, can effectively contain iodine foot bath liquid, strictly prevent iodine liquid leakage, reduce the cleaning trouble and cross infection risk caused by liquid leakage, can accurately separate and position the patient's toes, whether it is big toe or little toe can be properly settled, ensure that iodine liquid can fully and evenly contact paronychia sick part, maximize the disinfection and treatment effect of iodine, promote the relief and recovery of paronychia symptom.

A variable-structure vertical take-off and landing aircraft comprises an aircraft body, first connecting rods are arranged on the two sides of an aircraft head of the aircraft body respectively, tilting steering engines are arranged on the front sides of the first connecting rods, the tilting steering engines are connected with front motors, and the front motors are connected with rotors; a front wing is arranged behind the first connecting rod, one end of the front wing is connected with the fuselage, the other end of the front wing is rotatably connected with one end of a front-rear wing connecting rod, the other end of the front-rear wing connecting rod is hinged to a rear wing, and the rear wing is slidably arranged at the rear end of the fuselage; a second connecting rod is arranged at the tail of the fuselage, one end of the second connecting rod is connected with the fuselage, the other end of the second connecting rod is connected with the empennage, and a rear motor and a rotor wing connected with the rear motor are arranged on the second connecting rod. The positions of the rear wings can be changed in the air, different sweep angles have different lift-drag ratios, different flight speeds are achieved during level flight, and the task target that one aircraft has multiple purposes is achieved.

The application relates to a method and system for realizing 90-degree integer multiple rotation of an image, wherein the method comprises the following steps: an FPGA receives original image data output by an image sensor and image processing parameters issued by an ARM, the image processing parameters at least including width, height and a rotation angle, wherein the rotation angle is an integer multiple of 90 degrees; the original image data is preprocessed and demosaiced to obtain a full-color image in RGB or YUV format; according to the width, height and rotation angle of the image, a coordinate transformation formula for 90-degree integer multiple rotation is used to determine the position mapping relationship between each source pixel in the full-color image and a target pixel after rotation; the full-color image is written into a BRAM cache in a ping-pong mode, and each pixel is read according to the order of the position mapping relationship and written into a target address in a DDR, wherein the target address in the DDR is calculated according to the position relationship.

The invention discloses a magnetic suspension medical automatic door matched with an access control function, and relates to the technical field of magnetic suspension automatic doors, the magnetic suspension medical automatic door comprises a magnetic suspension assembly, a registration trigger assembly, a door body assembly, an access control machine, an infrared induction switch and a PLC, the magnetic suspension assembly is installed on the outer side of a wall and used for driving the door body assembly to be opened and closed, and the magnetic suspension assembly comprises a fixed rail; a linear motor is installed at the position, close to the left side, in the fixed rail, stator windings are fixedly connected to the inner surface walls of the front side and the rear side of the fixed rail, a movable rail is slidably embedded in the fixed rail, and door clamps are symmetrically and fixedly connected to the bottom of the movable rail. According to the invention, the overall structure is novel, the used electric devices are mature and cheap, the implementation mode is simple, and the problems that excessive energy consumed by the driving device is increased and the use efficiency of a detection room is reduced due to the large opening and closing distance and opening and closing time of the medical magnetic suspension automatic door can be effectively solved.

The present invention discloses a satellite network mobility management method and system based on PMIPv6, belonging to the field of satellite communication. The system includes multiple distributedly deployed location mobile anchor points LMA, ground stations, ground service networks and mobile access satellite MAS. Among them, LMA serves as a key management node for the interaction between the ground service network and the satellite network, responsible for user mobility management, data forwarding and information synchronization between LMAs. MAS serves as a user satellite network access point, allocates a fixed IP address of the same network segment to the user, acts as a router to publish the network segment route, and selects a suitable LMA for user registration. The mobility management method includes mechanisms such as user registration, switching, data forwarding and LMA synchronization. The present invention improves the accessibility and reliability of the ground service network backhaul routing in the low-orbit satellite network, realizes efficient two-way data transmission between users and the ground network, and is suitable for future large-scale LEO satellite communication systems.

The invention relates to the technical field of medical instruments, and particularly discloses a replaceable implantable medical device which comprises a main body, a control unit is arranged on the lower side of the main body, protective frame parts are fixedly connected to the two ends of the main body, two deformation mechanisms are arranged between the two protective frame parts, and a bearing frame and a storage battery pack are fixedly connected into the main body. A positioning shaft is rotationally connected into the bearing frame, two winding rollers are fixedly connected to the circumferential surface of the positioning shaft, a deformation mechanism is arranged between the main body and each of the two wrapping sleeves, an electrifying mechanism is arranged between each of the two deformation mechanisms and the storage battery pack, and an adjusting mechanism for adjusting the deformation quantity of the deformation mechanisms is arranged in the main body. The two deformation alloy belts can deform simultaneously and asynchronously, physiological state changes of the bladder and the urethra can be sensed and responded more accurately, and therefore the urine control precision is improved, fine adjustment can be conducted according to actual conditions of different people, and a patient can obtain better urine control experience.

The invention provides a preparation method of an adhesive-free solvent-free UV-cured wafer grinding protective film suitable for a large-particle-size wafer with a bump / a copper cylinder / a solder ball, and relates to the technical field of special-effect film structures. The preparation method comprises the following steps: uniformly mixing and stirring the components in the adhesive layer; uniformly coating the surface of the base film with the obtained material; carrying out UV curing; and adding a release film on the surface of the UV-cured adhesive layer to obtain the wafer grinding protective film. The wafer grinding protective film is prepared by adopting a UV curing process, the scheme is more environment-friendly while the application requirement is met, and the specific main polymer is adopted in the protective film adhesive layer, so that the obtained wafer grinding protective film shows the effect of no adhesive at the use temperature while achieving high adhesive force on the surface of a large-particle-size wafer, and the wafer grinding protective film is more environment-friendly. The special requirement in the grinding process of the large-particle-size wafer with the protruding block / copper column / tin ball can be met, and the efficiency and the yield of the wafer manufacturing process are improved.

The invention discloses a high-toughness, insulating and heat-conducting PC (polycarbonate) composite material. The composite material is prepared by melting and compounding modified high-purity aluminum oxide, organic silicon modified polycarbonate and other auxiliaries. The polycarbonate modified material prepared by the invention has high toughness, good thermal conductivity, insulativity, flame retardance and high temperature resistance; the modified high-purity aluminum oxide in a specific proportion in the composite material is combined with various heat-conducting fillers, so that not only is efficient heat conduction capability realized, but also the original high-insulation characteristic of polycarbonate is maintained, and the special requirements on materials in the fields of electronics and electric appliances are met; the impact strength and toughness of the composite material are enhanced, and the reliability and durability under high temperature or mechanical stress are ensured; and firm chemical bonds are formed on the surface of the aluminum oxide, so that the interfacial compatibility of the inorganic filler and an organic matrix is optimized, meanwhile, the thermal stability is also improved in polycarbonate modification, and the service life of the material is prolonged.

This invention relates to the field of satellite telemetry, tracking, and command (TT&C) technology, and provides a method, system, device, and medium for satellite IoT TT&C mission planning. The method includes: S1: obtaining the set of observable arc segments for each ground station; S2: dividing the mission planning time period into m time segments; S3: first solving the mission planning result for the first time segment; S4: removing observable arc segments in the current time segment that intersect with the previous time segment, completing the mission planning for the current time segment; S5: taking the current time segment as the previous time segment and the next time segment as the current time segment, repeating step S4 until the mission planning for the second to the mth time segments is completed; S6: combining the mission plans of the m time segments to form the satellite IoT TT&C mission plan. This scheme can plan all actions within the planning time period at once, designing a reasonable planning scheme and reducing the complexity of the mission planning algorithm.

The application relates to a vision detection method, system, device and medium, and belongs to the technical field of vision detection. The vision detection method comprises the following steps: acquiring identity feature information of a subject, determining a vision chart type, generating a corresponding vision chart and displaying the vision chart; according to a preset rule, selecting a test target image one by one as a test target image for highlighting display, and collecting a response signal of the subject to each selected test target image until a preset test number is reached; verifying the response signal of the subject each time according to the correct direction of each selected test target image to obtain a response verification result; acquiring a response time corresponding to the response signal of the subject each time and a test target image difficulty; and calculating a vision index based on the test target image difficulty, the response verification result and the corresponding response time of each test to obtain a vision detection result of the subject. The application can improve the accuracy of the vision detection result.

The invention discloses a high-temperature chip thin-film resistor and a manufacturing method thereof, and relates to the technical field of resistor manufacturing, the resistor comprises a ceramic substrate, a resistive film layer is arranged on the front side of the ceramic substrate, positive electrodes are symmetrically arranged on the two sides of the resistive film layer, and back electrodes are arranged on the edges of the two sides of the back side of the ceramic substrate; side electrodes are symmetrically arranged at the ends of the two sides of the ceramic substrate, nickel layers and outer gold layers are arranged outside the side electrodes from inside to outside, and a passivation layer and an encapsulation layer are arranged on the front face of the resistive film layer from bottom to top. The manufacturing method comprises the following steps of scribing, sputter coating, resistor photoetching, passivation, silicon photoetching, high-temperature heat treatment, laser resistor trimming, encapsulation layer printing, strip splitting, side electrode forming, particle crushing and electroplating. The gold layer is used as the outer plating layer, so that the use temperature range of the resistor is widened, and the resistor can keep excellent performance in a harsh high-temperature environment.

The utility model provides a cooling device for manufacturing hardware products, which comprises a water tank, a support frame arranged above the water tank, a mounting frame arranged at the upper end of the support frame, a plurality of rotating rods rotationally arranged in the mounting frame, a plurality of fixing blocks uniformly arranged at the left ends of the rotating rods, water covers arranged on the fixing blocks, and gears arranged at the right ends of the rotating rods. According to the cooling device for hardware product manufacturing, cooling water can be sprayed to a hardware product through the water cover to cool the hardware product, and the rotating rod can be driven to drive the water cover to swing through the fixing block through cooperation of the rack plate and the gear, so that the water spraying angle of the water cover is adjusted, and the cooling effect is improved. Therefore, the cooling water flow can cover the surface of a product needing to be cooled more accurately, the problem of local overheating or insufficient cooling is avoided, and the cooling efficiency of equipment is improved.

The invention relates to the technical field of hearing aids, and particularly discloses a 3D printing customized back-of-ear hearing aid which comprises a customized shell matched with the characteristics of the ear of a user, a bearing body matched with the inner cavity of the customized shell is fixedly arranged in the customized shell, and a gap is reserved between the bearing body and the inner wall of the customized shell. A flexible PCB and a microphone module, a control module and a power management module which are connected with the flexible PCB are arranged in a gap between the bearing body and one side, far away from the back of the ear, of the customized shell, the flexible PCB is connected with a receiver, the receiver is located outside the customized shell and is provided with an earplug, and the earplug is connected with the control module and the power management module. And the receiver, the flexible PCB and the microphone module jointly form a group hearing system for compensating hearing loss. According to the invention, the utilization rate of the internal space of the hearing aid is improved, the hearing aid is ensured to have excellent structural strength, the miniaturization and lightweight process of the hearing aid is successfully promoted, and the wearing comfort and the use experience of a user are effectively improved.

The utility model discloses irrigation area channel dredging equipment, which belongs to the technical field of channel dredging, aims at solving the problems of unsmooth drainage and even blockage in a channel and poor water source flowability, and comprises a channel body, the channel body further comprises a mounting frame, the mounting frame is fixed on the side wall of one side of the channel body, and a water inlet pipe is fixed on the side wall of one side of the mounting frame. Two symmetrically-distributed mounting plates are fixed to the side wall of the inner side of the channel body, the side walls of the adjacent sides of the two mounting plates are jointly connected with a grating plate in a sliding mode, and a dredging assembly is arranged on one side of the channel body. Through the arrangement of the dredging assembly, a water source can be treated, the special requirements of water quality in an irrigation area can be effectively met, the situation that the water source is blocked due to impurities such as aquatic plants in the water source is prevented, the water quality requirements of the water source in the irrigation area can be met, and meanwhile the utilization rate of irrigation area channel dredging equipment can be improved; and the long-term irrigation area water source dredging work is effectively handled.

The utility model belongs to hot runner injection moulding technical field, especially is related to a single valve is with easy scald material special hot nozzle structure. The outer wall surface of hot nozzle body is equipped with heater, thermocouple, the hot nozzle body is equipped with valve needle in the flow channel hole of integral gate bar, the integral gate bar includes integrally formed first section body, second section body, the first section body is screwed in the hot nozzle cavity of hot nozzle body, the second section body is located outside the hot nozzle cavity, the second section body is equipped with the copper ring of heat dissipation. The second section body of integral gate bar adds beryllium copper heat dissipation copper ring, its copper ring radial surface II, copper ring axial locating surface II, copper ring radial surface III and mould plate closely cooperate and contact, form high -efficient heat dissipation channel, can quickly export the heat of the gate place gathered, make the gate place glue temperature rapidly drop to the moulding temperature of adaptation, fundamentally solve the gate scald problem of low temperature easy scald material, effectively reduce product defective rate, greatly improve product forming quality and consistency.

The utility model discloses a switching mechanism and electric equipment. The switching mechanism comprises a connecting piece, a first electrode, a second electrode and a first driving piece, and the first electrode is rotationally installed on the connecting piece and can rotate relative to the connecting piece; the second electrode is fixedly installed on the connecting piece, the second electrode is arranged on one side of the first electrode, and at least part of the structure of the second electrode is located on the rotating track of the first electrode; the first driving piece is arranged on the connecting piece in a sliding manner and can perform translational motion relative to the connecting piece; the first driving piece performs translational motion under the action of external force to drive the first electrode to rotate; a circuit corresponding to the switching mechanism has an off state and an on state, and the circuit is switched from the off state to the on state only when the first electrode rotates and touches the second electrode.

The utility model provides a centralized refrigeration distributed cooling system. The centralized refrigeration distributed cooling system comprises a plurality of refrigerating units arranged at the mine mouth, a cold air pipe with one end connected to the refrigerating units and the other end extending into the main roadway and the mining area, and a multi-machine combined control system used for controlling independent operation and adjustment of the refrigerating units. The valves are connected to the cold air pipes and located in the mining areas, and the monitoring stations are arranged in the mining areas and used for monitoring environment data and regulating and controlling operation of the valves. According to the utility model, the problems of scattered mine underground operation places, complex terrains and diversified mining requirements, especially difficulty in ventilation and heat extraction of a single-end tunneling roadway without penetrating air flow can be solved.