114results about How to "Achieve physical isolation" patented technology

The utility model discloses a basement side wall protection structure which comprises an outer wall, a plurality of first waterproof protection plates, a plurality of second waterproof protection plates and a plurality of apron plates, and the outer side face of the outer wall is coated with a waterproof layer. Wherein a plurality of clamping groove structures are arranged on the outer side wall body of the outer wall at equal intervals, and each second waterproof protection plate is clamped between every two adjacent clamping groove structures, so that each second waterproof protection plate is fixedly connected with the outer wall; the first waterproof protection plates are fixed to the outer sides of the clamping groove structures, and the second waterproof protection plates on the two sides of the clamping groove structures are pressed; the water dispersing plates are fixed to the top ends of the clamping groove structures and connected to the top ends of the first waterproof protection plate and the second waterproof protection plate in a pressed mode. Through the structural arrangement of the basement side wall protection structure, physical isolation of the outer wall is achieved, physical damage of external backfill soil to the outer wall is avoided, and therefore a waterproof layer on the outer wall is protected.

The utility model discloses an enhanced heat dissipation type airborne universal reinforced chassis, which comprises a chassis main body, the front end of the chassis main body is provided with an interface switching front panel, an air duct type guide rail is arranged in the chassis main body, and a plurality of function module shielding boxes are arranged in the chassis main body in parallel in the direction perpendicular to the air duct type guide rail. A fan switching rear panel is arranged at the rear end of the case body, a mother set mounting bottom plate is arranged at the lower end of the functional module shielding box, a cold conduction boss in the functional module shielding box can conduct heat consumption on components outwards in a metal heat conduction mode, and heat on the module box can be transmitted to a case shell through multiple paths. Meanwhile, air is supplied outwards through the heat dissipation air channels between the modules and the draught fan at the rear end of the case, heat is taken away through convection, and the overall heat dissipation performance of the case is improved in a combined heat dissipation mode.

The utility model discloses a kind of hydrogen energy power generation systems of quick heat dissipation, including outer frame, be set on base and be provided with hydrogen energy power generation module inside;Several open and close doors, hinged on outer frame and be provided with electric louvers on open and close door;Several heat dissipation fans, fixed in outer frame top and into positive pressure air to outer frame inside;The base is equipped with cavity, and the circuit of the hydrogen energy power generation module is laid in base cavity.This hydrogen energy power generation system can realize power generation function by setting power generation module inside outer frame, simultaneously, by setting heat dissipation fan and electric louvers, the ventilation inside can be guaranteed, it is convenient to quick heat dissipation, and by laying circuit in the cavity inside base, the temperature inside outer frame can be reduced, effectively guarantee the normal operation of hydrogen energy power generation system.

The utility model discloses an interactive hand clamping mechanism, which comprises an X-axis cross beam, an X-axis cross beam, an X-axis cross beam, a Y-axis cross beam, a Y-axis cross beam, a Y-axis cross beam and a Y-axis cross beam, the upper clamping hand module reciprocates along the X-axis cross beam in the upper clamping hand moving area; the upper clamping hand module comprises an upper clamping hand, an upper clamping hand X-axis translation seat and a Y-axis driving unit; the Y-axis driving unit drives the upper clamping hand to extend towards one side part of the X-axis cross beam to wait for materials and to retract to avoid one side part deviating from the X-axis cross beam; the lower clamping hand module reciprocates along the X-axis cross beam in the lower clamping hand moving area; the lower clamping hand module comprises a lower clamping hand, a lower clamping hand X-axis translation seat and a Z-axis driving unit for driving the lower clamping hand to move in the Z-axis direction relative to the lower clamping hand X-axis translation seat; and the Z-axis driving unit drives the lower clamping hand to ascend for material waiting and descend for avoiding. The structural compactness, the movement precision, the working stability and the structural reliability are improved.

The invention discloses an annular redundant power supply system of a data center and a control method of the annular redundant power supply system, the data center comprises r devices to be powered, the power supply system comprises 2n uninterruptible power supplies which are annularly connected, m adjacent uninterruptible power supplies supply power to the same device, and two power supply circuits between two adjacent uninterruptible power supplies and one device form a group of power supply loops, two adjacent uninterruptible power supplies are powered by different mains supply loops, m is an even number, m is more than or equal to 2 and less than or equal to 2n, and r is less than or equal to 2n; a circuit breaker is arranged on each group of power supply circuits, and one power supply circuit in one group of power supply circuits corresponding to each device is controlled to stop operating and the other power supply circuit is controlled to operate by controlling the power-on or power-off of the circuit breakers; wherein the uninterruptible power supply corresponding to the power supply line which is out of operation is charged by a mains supply loop and serves as a redundant power supply of the uninterruptible power supply corresponding to the power supply line which is in operation, physical isolation is achieved, and the power supply continuity and reliability are improved while the number of circuit breakers is reduced.

The invention relates to a space optical camera focal plane and electric control assembly and an assembly process method thereof, in particular to a space optical camera focal plane and electric control assembly capable of preventing molecular contamination of an electronic assembly to a detector target surface and an assembly process method thereof. The problem that an existing assembly is difficult to meet the detector target surface molecular pollution protection requirement and the space load integration requirement at the same time is solved. The assembly comprises a focal plane assembly and an electric control assembly from front to back. The focal plane assembly comprises a front panel, a focal plane assembly shell which forms a cavity with the front panel, and a detector welding front assembly, a focal plane circuit board and a heat transfer plate which are arranged in the cavity from front to back; the detector welding front assembly comprises a detector base, a detector pressing plate and a detector arranged in an inner hole of the detector base from back to front; the rear end surface of the detector and the step surface of the inner hole of the detector base as well as the front end surface of the detector welding front assembly and the front panel are peripherally sealed; the electric control assembly shell and the focal plane assembly shell define a communicated cavity.

The utility model discloses a surge protection circuit and a signal input and output device. The surge protection circuit comprises a master control module, a CAN transceiver module, a USB-to-CAN bus control module, an I / O expansion module, an input isolation module and an output isolation module. The USB to CAN bus control module is electrically connected with the CAN transceiver module, the CAN transceiver module is electrically connected with the main control module, and the upper computer is electrically connected with the USB to CAN bus control module; the main control module is electrically connected with the I < O > expansion module, the I < O > expansion module is electrically connected with the input isolation module, the input isolation module is electrically connected with the output isolation module, and the output isolation module is electrically connected with an output load. According to the utility model, physical isolation of input signals and output signals can be realized, signal interference is prevented, isolation control and protection effects are achieved, and the working stability of the signal input and output device is ensured.

The invention discloses a portable intelligent robot, belongs to the technical field of intelligent robots, and aims to solve the problems that when an intelligent accompanying voice robot is used, the temperature of an internal soft package battery is extremely easy to rise abnormally, and safety isolation and risk management and control are difficult to realize quickly after the temperature of the battery is high. The intelligent accompanying robot solves the problems that a battery cannot be isolated from core elements in the robot in time, key components such as a voice module and a main control board are prevented from being damaged due to liquid leakage and swelling of the high-temperature battery, and potential safety hazards are further caused due to the fact that heat diffusion is difficult to prevent and causes faults of the whole robot. According to the intelligent accompanying robot, when the temperature of the soft package battery reaches a preset threshold value, safe bin unlocking and sliding-out, soft package battery bin returning and limiting, sealing isolation and power failure alarm can be synchronously completed, physical isolation of the battery and a core component is rapidly achieved, heat and leakage diffusion is blocked, risks are avoided from the source, and the safety of the battery is improved. And the multi-scene use safety of the robot is improved.

The invention relates to a high-voltage induction heating molten salt system and method for energy storage, and relates to the technical field of heat energy storage, and the system comprises a salt storage tank, an induction heating device, a high-voltage power supply module, a circulating pump and a control system. The induction heating device is arranged on a circulating pipeline inside or outside the salt storage tank, and the high-voltage power supply module is electrically connected with the induction heating device and used for providing high-voltage high-frequency alternating current; the circulating pump is used for driving molten salt to circulate in the system; the control system is connected with the high-voltage power supply module and the circulating pump to adjust heating power and flow velocity. Power is directly supplied to the induction heating device through the high-voltage power supply module, eddy heat is generated in the fused salt or the heating body according to the electromagnetic induction principle, the problems of scaling and local overheating of a traditional resistance heater are solved, high-power and high-efficiency fused salt heating can be achieved, the heat conversion efficiency and operation stability of an energy storage system are improved, and the energy storage system is suitable for large-scale popularization and application. The method is suitable for large-scale wind-light-electricity consumption and industrial heat supply energy storage scenes.

The utility model provides a complex system cabinet based on convenient wiring, and mainly solves the technical problems that the wiring mode of the existing complex system cabinet is tedious, and the electromagnetic compatibility and protection requirements of the cabinet are affected. The complex system cabinet comprises an input power distribution cabinet, at least one power cabinet and an output power distribution cabinet which are arranged in sequence. The interiors of the cabinet body of the input power distribution cabinet, the cabinet body of the power cabinet and the cabinet body of the output power distribution cabinet are respectively used for layout of corresponding electronic components; the rear side of each cabinet body faces the same direction, a wiring groove is formed in the rear lower side of each cabinet body, and a corresponding connecting cable is placed in the wiring groove; the wiring grooves of each cabinet body are communicated with each other to form a wiring area. According to the utility model, the wiring area is arranged at the rear lower side of the cabinet body, so that the layout of electronic components in the cabinet body is not influenced, the physical integrity of the cabinet body is guaranteed, the interference of cable coupling on the electronic components is effectively avoided, and the electromagnetic compatibility and protection requirements of the cabinet are met.

The present application discloses an alarm system and method based on face recognition, and relates to the field of alarm technology of face recognition. The present application includes an information management module, a face recognition module, a tailing analysis module and an early warning terminal. By collecting and transmitting faces and personal information of campus personnel to various databases for storing facial feature values ​​and personal information, a face recognition machine identifies a target person, determines whether the target person has access authority, analyzes whether the target person is a blacklisted person, and determines whether a suspicious person has access authority. This solves the limitation problem in the current campus face recognition development feasibility analysis process. When the target person has authority, it checks whether there is a tailer in the video, and sends the tailer's feature value to the face recognition, thus realizing comprehensive and objective analysis of face recognition and providing an early warning function to ensure the safety of various places in the campus.

The invention belongs to the technical field of electric mechanism tests, and relates to an electric mechanism balancing detection loading device and method, and the device comprises a loading unit and a control unit. The loading unit is used for loading the tested electric mechanism; the control unit is used for controlling the loading unit to simultaneously acquire the load and the displacement of the tested electric mechanism under load; and whether balancing is carried out or not is judged according to the load and displacement of the loaded electric mechanism. The loading unit comprises a reduction gear motor, a chain, a magnetic powder clutch, a rack, a displacement sensor and a tension and compression sensor; the reduction gear motor drives the magnetic powder clutch through a chain; the magnetic powder clutch drives the rack, one end of the rack is connected to the loading platform after being connected with the displacement sensor, the other end of the rack is connected with the tested electric mechanism, and the other end of the tested electric mechanism is connected to the loading platform after being connected with the tension and compression sensor.

The invention provides an oil and gas well segmented testing device and method, and relates to the technical field of oil and gas well testing, the device comprises a sleeve, a fracturing bridge plug and a testing short section device, and the testing short section device is connected to the lower portion of the fracturing bridge plug and goes down to a preset position in a well along with the bridge plug. The test short section device is of a cage type structure, a battery, a timer, a holding claw, a pull rod, a motor pulling cylinder and a plugging device are arranged in the test short section device, the timer is used for controlling the gear motor pulling cylinder to act, the pull rod pulls the holding claw to rotate, the plugging device is released, a bridge plug center hole is plugged, and a flowing channel is closed; the testing method comprises the steps of collecting drainage and production data of adjacent wells to determine plugging time; designing a test short section and setting the starting time of a timer; the device is connected with a bridge plug to descend into a well, and staged fracturing is completed; sequentially starting timers after oil-gas well liquid drainage production, blocking section by section, recording wellhead yield data, and calculating the productivity of each section; according to the method, measurement is directly performed through physical isolation, the test result is visual and reliable, the anti-interference capability is high, the cost is low, and the method is suitable for output monitoring of low-permeability and unconventional reservoir staged fractured wells.

This invention relates to the field of concrete testing, and more particularly to a concrete permeability testing device, comprising an installation table and a platform. The platform is horizontally mounted on top of the installation table, and multiple bases are mounted on the platform. A test mold body is detachably mounted on the top of each base, and a test sample is placed inside the test mold body. The installation table contains a liquid filling structure and a pressurizing structure, both of which are connected and communicate with the bases. This invention utilizes a downward-pressing external threaded ring that engages with an internal threaded ring fixedly mounted on the platform. With the aid of a circumferentially positioned lever on the downward-pressing external threaded ring, the operator only needs to hold the lever and rotate the downward-pressing external threaded ring to quickly and firmly press and fix the test mold onto the top of the base. This replaces the traditional method of tightening multiple bolts individually, greatly simplifying the test mold assembly and disassembly operations, significantly improving testing efficiency, and reducing the labor intensity of the operator.

The application discloses a kind of time difference risk hedging method and device of insurance fund custody, it is related to financial risk control technical field, the method includes: creating virtual sub-account for each user and being bound with corresponding policy account one by one to realize fund physical isolation;When consumption incentive enters the custody special account, it is frozen to corresponding virtual sub-account by calling bank freezing interface and generates directional payment instruction;When daily business ends, generate custody fund flow sheet snapshot, before batch deduction of insurance company next day, pre-reconciliation is carried out to custody fund flow sheet snapshot and to-be-deducted list, and according to result, unfreezing transfer or difference processing is executed;Risk reserve pool is established simultaneously, when unilateral account is abnormal, first pay, complete account adjustment to realize error recovery after finding out reason and clearing up.The application realizes fund physical isolation by virtual sub-account binding and fund freezing directional transfer, effectively hedges the supervision and operation risk caused by fund circulation time difference, and improves the stability of fund custody.

The invention discloses an alarm system and method based on face recognition, and relates to the technical field of face recognition alarm, and the system comprises an information management module, a face recognition module, a trailing analysis module and an early warning terminal. The face recognition machine is used for storing the face feature values and the personal information, the face recognition machine is used for recognizing a target person, judging whether the target person has the access permission or not, analyzing whether the target person is a blacklist person or not and judging whether a suspicious person has the access permission or not, and the problem of limitation in the current campus face recognition development feasibility analysis process is solved; and when the target person has the authority, whether there is a follower in the video is checked, and the feature value of the follower is sent to the face recognition, so that the comprehensive and objective analysis of the face recognition is realized, and meanwhile, an early warning function is provided, and the security of all parts in the campus is ensured.

The utility model relates to the technical field of chemical equipment, concretely to a high temperature frozen oil reation kettle sampling device, including synthetic reation kettle body, sampling assembly, the sampling assembly includes the sampling port, the sampling port is established in the lateral surface of synthetic reation kettle body, the inside fixed communication of sampling port has solenoid valve no.

The invention provides a formic acid cracking hydrogen production device in a pressurized water reactor environment, the formic acid cracking hydrogen production device comprises a pressurized water reactor first loop system, a pressurized water reactor second loop system and a hydrogen production system, the pressurized water reactor first loop system comprises a reactor, a voltage stabilizer and a steam generator, the reactor, the voltage stabilizer and the steam generator are sequentially connected to form a loop, the steam generator is connected with the second loop system and the hydrogen production system; the second loop system comprises a steam-water separator, a steam turbine and a condenser, the steam output end of the steam-water separator is connected with the steam turbine, a medium-pressure output port of the steam turbine is connected with the hydrogen production system, a low-pressure output port of the steam turbine is connected with the condenser, and the condenser is connected with the steam generator. The nuclear energy technology and the hydrogen production technology are combined, large-scale production of hydrogen is carried out, and the hydrogen production efficiency is improved.

This application relates to the field of server technology, and provides a frame structure, a heat dissipation device and a server. The frame structure includes: a frame body, the frame body having at least two installation spaces arranged sequentially along a first direction, each installation space for accommodating a fan body; a channel is formed between the at least two adjacent installation spaces, the channel passing through the frame body along a second direction for accommodating cables passing through the frame body; the first direction and the second direction form an angle.

The utility model relates to a kind of MPCVD sealing structure, belong to MPCVD equipment technical field, including the protection structure for the protection of MPCVD body, the MPCVD body includes reaction cavity, waveguide cavity, connecting rod being set in reaction cavity inside and penetrating waveguide cavity inside, the upper portion of waveguide cavity is provided with the number of two connecting discs, two The adjusting spring is fixed between two connecting discs;The protection structure includes the base being set between two connecting discs, the base number is two, two The connecting block is detachably installed in the inside of two bases, two The telescopic protective sleeve that is fixed with the adjusting spring protection between two connecting blocks is protected. The MPCVD sealing structure, by two bases and detachable connecting block fixed, then by telescopic protective sleeve completely wrapping adjusting spring, prevent corrosive gas, particulate matter directly contact spring surface, realize the physical isolation of adjusting spring.

The utility model relates to a block type lifting workbench which comprises an installation part, a plurality of table top parts, a plurality of lifting parts and a plurality of control parts. The platform has the advantages that the modular split design is adopted, accurate partition leveling is achieved through a plurality of independently-controlled platform surface components, all stations can be independently lifted and do not interfere with one another, and the platform is particularly suitable for a multi-instrument collaborative operation scene; secondly, a worm gear and worm transmission system and a cross telescopic rod linkage mechanism are innovatively adopted, the rotating speed of a motor is accurately adjusted through a micro control unit (MCU), a four-connecting-rod structure composed of stainless steel transmission rods is matched, the lifting process meets the positioning precision, and meanwhile it is ensured that displacement drifting does not exist in the load state through the self-locking characteristic of a worm gear; in addition, in the structural design, the double-layer stainless steel installation base piece forms a stable supporting frame through the supporting foot pieces distributed in a matrix mode, the design of array type receding openings in the panel piece is matched, the overall rigidity is guaranteed, and physical isolation of the lifting units is achieved.

The invention relates to the technical field of motors, and particularly discloses a dual-redundancy permanent magnet alternating current servo motor, which comprises a shell, and is characterized in that the shell is provided with a first opening and a plurality of ventilation openings; the rotating shaft is inserted into the first opening, and the first fan is connected with the rotating shaft; the driving mechanism comprises a stator and a rotor; the wind power gathering mechanism is adjacently arranged beside the first fan, the wind power gathering mechanism accelerates wind power, a high-pressure area and a low-pressure area are formed on the basis of the Bernoulli principle, and external air located in the high-pressure area is gathered towards a narrow channel located in the low-pressure area through a second opening; the stator is provided with two sets of windings, the stator is provided with 24 wire slots along the circumference, the number of stages is 5, the number of phases is three, each set of windings is provided with 12 wire slots, each wire slot is provided with a phase coil, and physical isolation of the wire slots is realized; the defects that in the prior art, the internal cooling performance of a motor is insufficient, condensate water is likely to be generated, and the optimization of an electronic upper winding inserted line structure is insufficient are overcome.

The invention discloses an intelligent power distribution room with comprehensive monitoring and management functions, and relates to the technical field of power distribution equipment. The device comprises an isolation plate, one side of the isolation plate is provided with a strong current chamber, the other side of the isolation plate is provided with a monitoring chamber, and the front side of the isolation plate is provided with a door frame. The power distribution room entrance is provided with the strong current room and the monitoring room which are separated by the isolation plate, the fingerprint identifier, the foldable door body and the linkage isolation mechanism are integrated on the door frame, personnel access control is achieved, when verification of monitoring personnel is passed, the first cam and the second cam limit the stroke of the guide rail rod, the door body can only enter the monitoring room in a half-open mode, and the safety of the monitoring personnel is improved. After verification by heavy current maintainers, the cam is completely released from limiting, the guide rail rod can be completely pushed into the rotating groove to drive the rotating disc and the gear ring to rotate, then the isolation door is opened through linkage of the driven gear to enter the heavy current room, physical isolation of a heavy current area and a monitoring area is achieved, and the safety management level of the power distribution room is improved.

This invention relates to the field of precision inspection and discloses a defect detection method based on machine vision. The method includes: an illumination device projecting a modulated light field containing multiple modulation periods, wherein the spatial light intensity distribution is shifted at a preset speed between adjacent periods; a photoelectric detection array acquiring a time-varying light intensity sequence reflected from the material surface, the sequence containing the reflected light intensity values ​​of multiple sampling points within the corresponding period; extracting the transient change gradient of the reflected light intensity within adjacent periods for sampling points at the same physical coordinate position on the corresponding material surface; determining an intrinsic light intensity change threshold based on the shift speed and sampling frequency; and identifying sampling points whose transient change gradient exceeds the threshold as physical breakage defects. This invention utilizes the constraint law of the geometric continuity of the material surface on the optical response to achieve the physical separation of texture interference signals and defect abrupt change signals, thereby solving the problem of misjudgment in defect measurement under complex topological surfaces.

The utility model discloses an oil-immersed transformer with self -response ability oil tank relates to electric power equipment technical field. It includes transformer body and fixed on pressure oil tank, and pressure oil tank is communicated with transformer body oil storage cavity through oil pipe, and is equipped with the floating type isolation membrane in the tank, and the inner chamber is divided into the oil cavity and the air chamber, the outer edge of isolation membrane and the tank body inner wall sliding seal cooperation, can move along the axial movement to respond the oil volume change. The utility model discloses through isolation membrane realizes the physical isolation of oil and air, thoroughly puts an end to oil liquid hygroscopicity, oxidation, delays the oil quality deterioration, and the sliding type response mechanism can instantaneously compensate the tiny change of oil volume, and maintains the stable system pressure, and discards the traditional elastic capsule, and eliminates the breakage pollution risk from the root. Its simple structure is reliable, effectively promotes transformer operation stability and service life, and is applicable to various oil-immersed transformers.

This invention relates to the field of medical polymer materials technology, and discloses an injectable polymer hydrogel and its preparation process. The hydrogel is prepared by in-situ crosslinking of solution A and solution B at a volume ratio of 1:1. Solution A includes oxidized dextran, zinc gluconate, anhydrous betaine, and phosphate buffer, while solution B includes carboxymethyl chitosan and phosphate buffer. This invention utilizes oxidized dextran and carboxymethyl chitosan to construct Schiff base covalent crosslinks, and introduces zinc gluconate to provide delayed metal coordination crosslinks, forming a double crosslinked network; simultaneously, anhydrous betaine is used to construct a hydration shield within the network. This invention effectively solves the problems of needle blockage caused by excessively rapid gelation time in traditional in-situ hydrogels and excessive swelling after implantation, achieving controllable gelation time, stable osmotic pressure, and uniform internal network, exhibiting excellent clinical operability and structural stability.

The application discloses a cooling air guide structure, an aero-engine and an aircraft. The aero-engine comprises a centrifugal impeller cover, a radial diffuser, an axial diffuser and a diffuser casing. The diffuser casing is connected to the radial diffuser, the axial diffuser and the centrifugal impeller cover respectively. A chamber is formed between the radial diffuser, the centrifugal impeller cover and the diffuser casing and is close to an outlet of the centrifugal impeller. The cooling air guide structure comprises gas collection channels which are circumferentially and uniformly distributed on the outer periphery of the diffuser casing. The chamber serves as a first gas collection chamber. The gas collection channels are connected to the first gas collection chamber through a first air guide structure so that the gas at the blade tip of the centrifugal impeller outlet is introduced into the gas collection channels through the first gas collection chamber. The gas collection channels guide the introduced cooling air out of the turbine. The cooling air guide structure is an internal channel integrated in the engine. No complex additional pipeline is needed. Compared with the prior art, the weight of the engine is reduced, and the structure is more compact and reasonable.

The utility model relates to the technical field of mobile power supplies, in particular to a power bank which comprises a columnar shell, a circuit board assembly, a winding disc and a columnar battery cell are sequentially arranged in the columnar shell in the axial direction, and the winding disc, the columnar battery cell and the columnar shell are coaxially arranged; a data line fixing groove is formed in the side portion of the columnar shell in the circumferential direction, and a cable access hole is formed in one side of the data line fixing groove; according to the utility model, the internal structural layout of the power bank is optimized through the layout mode of the columnar shell, the axial layering and the coaxial structure, and the space utilization rate is improved. According to the design, a larger mounting space is provided for the battery cell, the capacity of the battery cell is favorably improved, and the cruising ability of a product is further enhanced; meanwhile, the winding disc is arranged between the circuit board assembly and the battery cell, the physical heat insulation effect is achieved, the heat influence on the circuit board assembly when the battery cell works is reduced, the stability of a circuit system is guaranteed, and the use safety of a product is improved.

The invention relates to the technical field of data supervision, in particular to a construction project witness sampling data supervision method and system based on the Internet of Things. Comprising the following steps: constructing a three-level block chain architecture used for data chaining, setting a processing party level authority, inputting a viewing content matching link based on the Internet of Things, triggering an authentication instruction of voiceprint, work card and positioning, identifying whether the level authority accords with the viewing link, if so, performing multi-identity authentication viewing, and if not, performing multi-identity authentication checking. Other links are cooperated for contract authorization checking, and contract authorization comprises a dynamic geofence and a time window. Physical isolation of sensitive service data on a storage level is realized through a three-level block chain architecture, three-weight networking perception and forced verification are combined, and meanwhile, access permission is decoupled from a static identity attribute and is converted into a dynamic situation condition which must meet a specific time window and geo-fence intersection, so that the access permission is not influenced by the dynamic situation condition. And accurate control of authority management is realized.

This utility model relates to a battery pack temperature control and heat dissipation circulation pipeline, comprising: a side frame, a cover plate mounted on the side frame, a base plate mounted below the side frame, and a partition plate installed inside the side frame to divide the side frame into an installation area and a heat dissipation area. An installation plate is mounted in the installation area, and a battery module is mounted on the installation plate. A circulation component, a heat conduction component, and a heat dissipation component are provided inside the installation area and the heat dissipation area. By setting the partition plate, the complete space formed by the side frame, cover plate, and base plate is divided into two parts: one part for installing the battery module and the other part for installing the heat dissipation component. The circulation component circulates and pushes the heat exchange medium to achieve heat dissipation for the battery module. Simultaneously, the heat absorbed by the heat exchange medium is transferred to the heat dissipation area, where a cooling fan cools the heat exchange medium, thereby cooling the pipeline. This prevents the heat generated by the battery module from damaging the pipeline.