43results about How to "Improve security level" patented technology

The application provides a kind of active safety control method and device of vehicle.When dangerous target appears in front of the vehicle, the active safety control method includes: according to whether brake system and AEB module have fault, AEB fault condition is set to allow triggering or prohibit triggering;According to whether steering system and AES module have fault, AES fault condition is set to allow triggering or prohibit triggering;According to the vehicle speed of the vehicle, AEB speed condition is set to allow triggering or prohibit triggering, and AES speed condition is set to allow triggering or prohibit triggering;According to TTB_limit, TTB_trigger, TTT_limit, TTT_trigger and collision time, AEB collision time condition is set to allow triggering or prohibit triggering, and AES collision time condition is set to allow triggering or prohibit triggering;When multiple AEB conditions are all allowed to trigger, the AEB module can be triggered to execute AEB function;When multiple AES conditions are all allowed to trigger, the AES module can be triggered to execute AES function.In this way, the triggering of active safety function is accurate and safe, and the connection between functions is smooth.

This invention discloses a Pickering emulsion based on silk fibroin self-assembled particles and its preparation method. The preparation method includes the following steps: adjusting the pH of the silk fibroin solution to 4.0-4.5, adding NaCl to a final concentration of 0.05-0.1 mol / L, mixing, and then heating to 40-50 °C and allowing it to stand at a constant temperature. Using the obtained silk fibroin self-assembled particle dispersion as the aqueous phase and vegetable oil as the oil phase, the mixture is mixed with excipients and homogenized by high-speed shearing to obtain a primary emulsion. This primary emulsion is then treated by high-pressure microfluidic jet to obtain the Pickering emulsion based on silk fibroin self-assembled particles. This method requires no chemical modification or exogenous reagents, is green and simple, and does not use organic solvents. It can prepare emulsions with high biosafety and high storage stability without emulsifiers, improving process safety and scalability, and broadening its application in the food, cosmetics, and biopharmaceutical fields.

This invention provides a fingerprint-secure login method and terminal for cloud computers. The method includes: repeatedly collecting fingerprint data from the same finger of a user and encrypting the fingerprint data to obtain encrypted fingerprint data; sending a first storage request to a cloud server, the first storage request including the encrypted fingerprint data; when logging into the cloud computer corresponding to the cloud server, collecting the user's current fingerprint data, encrypting the current fingerprint data, and sending a login request to the cloud server, the login request including the current encrypted fingerprint data; and unlocking the cloud computer corresponding to the cloud computer account upon receiving a verification success message from the cloud server. This invention effectively solves the problems of inconvenience and low security level of requiring account and password input during login in existing technologies.

The application discloses an inter-application data encryption communication method based on a dbus bus, an inter-application data encryption communication system based on the dbus bus, an inter-application data encryption communication device based on the dbus bus, an electronic device, a storage medium and a vehicle, and comprises the following steps: a session is created between a server and a client, and a communication session process is executed; a communication daemon process is executed to perform communication authentication processing on the communication session process; the communication authentication processing comprises communication encryption through an authorization certificate and an authorization key, and authentication of a session data unit is performed according to the certificate and the key; if the authentication result is true, the session data unit is retained in the communication session process; and if the authentication result is false, the session data unit in the communication session process is blocked. Through the above scheme, the authorization certificate and the authorization key are double-authenticated, and the security level of the communication connection is improved relative to the original encryption mode of the digital certificate or the digital key alone.

This invention discloses a lightweight joint estimation method for battery state of charge (SOC) in resource-constrained MCUs, comprising: extracting the weight matrices and bias terms of each layer of a trained LSTM time-series estimation network and flattening them into a one-dimensional static constant array; constructing a custom pure C language matrix operation library independent of a third-party AI inference framework on the target microcontroller, employing a global static memory pool management strategy, and defining a unified structure containing the number of matrix rows, columns, and one-dimensional floating-point data pointers at the C language level; the target microcontroller calling the custom pure C language matrix operation library to directly read the one-dimensional static constant array to complete the forward inference calculation of each gate unit of the LSTM network and output the prior SOC observation value; and calling the custom pure C language matrix operation library to perform state equation iteration of the Kalman filter and output the SOC estimation result. This invention enables the safe and efficient operation of complex coupled algorithms on a very low computing power platform.

The application discloses a laser safety control system and a control method thereof, and relates to the technical field of lasers.The laser safety control system comprises a multimode main control device and at least one single-mode main control device, wherein the multimode main control device is electrically connected with the single-mode main control device, is used for receiving two emergency stop interlocking signals input through an external control board, and is used for coupling the two emergency stop interlocking signals with a pulse width modulation pulse signal to form a double-channel emergency stop interlocking pulse signal and transmitting the double-channel emergency stop interlocking pulse signal to the single-mode main control device; and the single-mode main control device is used for receiving the double-channel emergency stop interlocking pulse signal and controlling a laser according to the double-channel emergency stop interlocking pulse signal. Therefore, the safety control logic of the laser can be optimized, the safety level of the laser control is improved, the workpiece is prevented from being damaged, the machining efficiency is improved, and the safety of equipment and personnel is ensured.

The utility model discloses a liquid-cooled container control system, which comprises a cabinet main body and a double-pump circulation module integrated in the cabinet, the double-pump circulation module comprises a main liquid pump and a standby liquid pump, the main liquid pump is driven by a frequency converter, the standby liquid pump can be driven by a power frequency power supply or the frequency converter, and a multipoint temperature acquisition module is arranged in the cabinet main body. By adopting the double-pump redundancy design, the standby pump can be seamlessly connected within 200 milliseconds when the main pump breaks down, the continuous operation of the system is ensured, the availability of the system is as high as 99.99%, meanwhile, the main liquid pump is provided with the frequency converter, the rotating speed is dynamically adjusted according to real-time pressure feedback, and compared with a traditional fixed-frequency pump, energy is saved by 20-30%. Multi-point temperature collection and closed-loop control are achieved, accurate temperature control is achieved, energy consumption is further reduced, a liquid leakage detection sensor is matched to trigger a signal at the moment of liquid leakage, a power source is cut off immediately through a PLC, an alarm is given, and electric short circuit and equipment damage are effectively avoided through millisecond-level response.

The utility model discloses a kind of intelligent cat litter box with anti-pinch cat multiple protection strategy belongs to pet intelligence article technical field.The cat litter box includes drum structure, drum driving motor, main control unit MCU, infrared detection unit, weight detection unit and current detection unit.Infrared detection unit is used to detect pet in and out, weight detection unit is used to judge whether pet is in basin, current detection unit is used to real-time monitoring motor load current.When infrared or weight detection unit detects pet existence, main control unit suspends drum motor operation;When motor current rises slope exceeds preset threshold, main control unit judges as cat event and immediately reversely rotates drum to loosen foreign matter.The utility model is combined by multiple sensing detection and current characteristic identification, realizes quick protection and abnormal identification, significantly improves the safety and reliability of intelligent cat litter box.

The invention relates to a non-electric-control medical liquid oxygen two-way decompression tank and a medical central oxygen supply system in the technical field of medical instruments, and aims to solve the problems of electric spark safety risk, low reliability and inconvenience in maintenance in the existing electric control scheme. According to the technical scheme, a pure mechanical structure is adopted, a main air inlet pipeline and a standby air inlet pipeline are included, each air inlet pipeline is provided with a one-way valve and a dual-backup pressure regulating valve set composed of pressure regulating valves connected in parallel, and an outlet of the standby pipeline is connected between a first one-way valve of the main pipeline and the main pressure regulating valve set through a fourth one-way valve; the main path pressure is preset to be higher than the standby path pressure, the one-way valve is driven to be automatically opened and closed through the pressure difference, power-free and seamless switching of the main gas source and the standby gas source is achieved, and the safety valve is arranged to guarantee overpressure safety. The oxygen supply system is mainly used for a hospital center oxygen supply system, and continuous, safe and stable oxygen supply is ensured.

The invention provides a data management method and system of a security element, the security element, electronic equipment and a computer program product, belongs to the technical field of intelligent cards, and aims to solve the problems of the existing security element in the aspects of data backup, recovery and the like. The method comprises the following steps: issuing an updating instruction of a current version application program to a security element through a trusted service management platform; in response to the update instruction, the secure execution environment randomly generates a temporary key, and obtains user specific configuration data of the application program of the current version from a secure storage area of the secure element; encrypting the user specific configuration data by using the temporary key to obtain encrypted data, and storing the encrypted data to the secure storage area; and obtaining the application program key from the secure storage area, encrypting the temporary key by using the application program key to obtain an encrypted key, and storing the encrypted key to the secure storage area.

The application relates to the technical field of pet products, in particular to a double-protection heating device and a heatable cat litter basin, wherein the double-protection heating device comprises a shell, a heating element, a temperature control assembly and a heat dissipation fan; the heating element and the temperature control assembly are installed in the shell and are connected in series; the temperature control assembly provides temperature loss control protection for the heating element; a heat dissipation grille communicating inside and outside the shell is formed on the surface of the shell; a containing groove for fixing the temperature control assembly is arranged in the shell; and the heat dissipation fan is installed on the shell and corresponds to the position of the heating element. The application effectively solves the technical problems of slow temperature control protection response, poor reliability and inconvenient maintenance of the heating device in the prior art.

This invention discloses a safe construction passage for offshore beam joints, belonging to the field of marine engineering technology. It includes a transverse support frame located at the top of the beam, with a first vertical rod fixedly connected to the support frame. A bottom horizontal rod is fixedly connected to the first vertical rod, and a second vertical rod is connected to the bottom horizontal rod. A telescopic ramp abuts above the bottom horizontal rod, and the ramp is located between adjacent pile caps, thus forming a construction passage between them. A drive motor is installed inside the ramp, controlling its extension and retraction. The drive motor is electrically connected to a wind turbine generator, a controller, and a battery. The battery stores the electrical energy generated by the wind turbine generator and transmits it to the controller and drive motor. This invention effectively solves the drawbacks of traditional safety measures relying on personal protective equipment, significantly improves construction efficiency and safety, ensures the continuity and safety of construction in complex marine environments, greatly reduces construction risks, and improves construction efficiency.

A method for treating food in an appliance (14) by at least one treatment device of the appliance (14) comprises the steps of a. providing a food recognition system with at least one camera image of a food item to be treated by the appliance (14)(S1), b. picture data about the food item by extracting a number of at least one characteristic features of the food item from the at least one camera image (S2), c. assigning a food identification to the food item based on at least one of the number of characteristic features (S4, S6), d. executing a food treatment process or program allocated to the assigned food identification (S8). According to the invention, the camera image is provided during step a. (S1) by an external camera device (12, 14), wherein the camera image provision is executed - by data retrieval by the food recognition system, and / or - by data transfer by the mobile camera device (12, 20), and / or - on the operator's initiation. Further disclosed is a food treatment system comprising an appliance (14) for treating food and an external camera device (12, 20) as well as a software application.

Embodiments of the present disclosure provide a method and apparatus for dynamically changing security algorithms with randomization pattern. An apparatus (20) operating as a terminal device includes at least one processor (202) and at least one memory (204) including computer program code. The at least one memory (204) and the computer program code are configured to, with the at least one processor (202), cause the apparatus (20) operating as a terminal device at least to perform: receiving, from a network entity, a first message for configuring a security pattern. The first message indicates: a list of security algorithms and a change pattern of the security algorithms. The change pattern comprises a randomization pattern. When the randomization pattern is enabled, the apparatus operating as a terminal device changes the security algorithms based on at least one random number generated by the apparatus operating as a terminal device.

The invention discloses a cooperative hardware security terminal architecture based on a glass vacuum cavity, which comprises an independently arranged glass vacuum cavity security module, can cooperatively work with an existing terminal main processor, and realizes hardware-level security upgrade on the premise of not influencing original performance and use experience. The glass vacuum cavity adopts two selectable sealing processes, so that both mass production and flexibility are considered; and a national security level hardware security unit is integrated in the cavity to realize key storage and encrypted transmission. An end-cloud collaborative architecture is adopted, sensitive data are not stored locally, and the security module can realize physical transplantation. The method is high in compatibility, does not depend on an advanced process, is high in physical attack resistance, can be widely applied to various smart phones and high-security-level terminals, and has high practicability and market value.

The invention discloses a lifting charging pile and parking space management and control integrated device and a control method, and relates to the field of new energy vehicle charging and parking space management, the lifting charging pile and parking space management and control integrated device comprises a shell, a lifting driving module, a charging module, a parking space management and control module, a vehicle identification module, a central control module and a network communication module; the central control module receives the instruction, transmits the instruction to each execution module, and judges the driving-in authorization of the vehicle based on the identification result of the vehicle identification module, a locally stored rule algorithm and the instruction of the cloud platform; after authorization, the lifting driving module and the parking space management and control module are controlled to execute automatic release and locking operation; and the charging module is controlled to provide charging service for the authorized vehicle and manage the whole-course closed-loop process of driving in, driving out and fee settlement of the vehicle. The problems that a fuel vehicle occupies a charging position, a new energy vehicle is short in charging and long in parking, and split type equipment is complex in installation, low in space utilization rate and extensive in management are solved, and the safety, convenience, refinement and operation benefits of parking space management are remarkably improved.

This invention discloses a quantum-attack-resistant blockchain-based password authentication key exchange and authentication method. The method involves inputting preset parameters, a trapdoor, a matrix, a noise vector, a password, and a public key into a computer system; executing a parameter generation algorithm to generate public parameters; executing a hash key generation algorithm to generate a hash key and a projected hash key generation algorithm to generate a projected hash key; generating a tag based on the identifiers of both communicating parties and the projected hash key, encrypting it to obtain ciphertext, and transmitting and receiving the projected hash key and ciphertext from the communicating party; verifying the validity of the communicating party's projected hash key, and generating a session key based on relevant parameters; and finally, the computer system processor executes a computer program and outputs the session key. This invention integrates a lattice-based smooth projected hash function with a trapdoor and a blockchain structure, possessing quantum attack resistance, general composable security characteristics, requiring only one round of communication, and is suitable for large-scale blockchain node scenarios.

The invention discloses a dynamic test system and method based on a double-shaft extension permanent magnet synchronous dynamometer motor, the system comprises the double-shaft extension permanent magnet synchronous dynamometer motor, two ends of the double-shaft extension permanent magnet synchronous dynamometer motor are respectively connected with a first tested motor and a second tested motor through a coupling and a measuring device, and each motor is driven by an independent four-quadrant frequency conversion controller and is uniformly and coordinately controlled by a measurement and control unit. The system supports a double-side synchronous test mode, can perform performance test on two motors at the same time, has power expansion capability, forms a double-stator structure by connecting an auxiliary synchronous motor, realizes multiplication of test power, and can independently acquire electrical and mechanical signals, execute a synchronous control strategy and perform safety monitoring by integrating a measurement and control unit with a power analysis module. The test process is stable and reliable; the test efficiency and the equipment utilization rate are improved, the test power range is expanded, and the method is suitable for motor batch detection and high-power model machine verification.

This invention belongs to the field of bulldozer technology and provides a safety control method and system for bulldozer escalators. It controls the escalator's ascent or descent when the following conditions are met simultaneously: the bulldozer is stopped, the bulldozer is in zero gear, the escalator limit switch operation signal and safety judgment signal are mutually exclusive, and the circuit is normal. The system also considers the escalator's descent during bulldozer deceleration. It considers whether there are simultaneous escalator ascent and descent switch press signals, whether the bulldozer is stopped, whether the bulldozer is in P gear, whether the escalator limit switch operation signal and safety judgment signal are mutually exclusive, and whether the circuit is normal, thus maximizing the safety of ascent and descent control. During escalator descent control, it achieves the goal of simultaneously stopping the engine, opening the door, and escalator descent, shortening control time and improving operator efficiency while ensuring safety.

The application relates to the technical field of parallel operation energy storage systems, and discloses a current transformer connection detection method, device and system and a storage medium. The selected phase of the parallel operation energy storage system is controlled to separately output power and perform dynamic change regulation, the correlation of power change amounts is analyzed according to the inversion power change amount of each energy storage inversion unit, the power grid power change amount and a detection model constructed, and the connection state of the CT is determined phase by phase. Compared with traditional manual detection or fixed threshold judgment, the method has high automation degree, can accurately identify the forward connection, reverse connection, wrong connection and missing connection of the CT in real time, abnormality can be found in time, and system failure or performance decline caused by connection errors can be avoided. The intelligent detection technology is adopted, the need for traditional auxiliary equipment is eliminated, and the detection efficiency and system reliability are improved.

The utility model provides a kind of electric rice cooker of all-metal cooking cavity, including pot cover and the pot body with inner pot, the pot cover includes metal inner cover and sealing ring, the inner pot has inner pot flanging, the metal inner cover includes metal conduit arranged in plate body and first sealing surface arranged in the outer edge of the metal inner cover, the first sealing surface and inner pot mouth along or inner pot flanging are attached to form annular rigid sealing area, the metal conduit is arranged in plate body to form steam outlet to guide steam to discharge, the sealing ring has sealing portion around the outside of first sealing surface, and the sealing portion is in contact with inner pot flanging sealing. The electric rice cooker of the utility model can effectively reduce the food in the inner pot contact non-metallic parts, to improve user's use experience.

The invention relates to a double-sided magnetic power bank with a built-in intelligent temperature control system, and the power bank comprises a bottom plate and a cover plate which are combined to form a housing with a battery compartment inside. The battery is mounted in the battery compartment; the PCB is installed on the inner wall of the cover plate and located on the front side of the battery; the distributed temperature sensing network is composed of a plurality of thermistors arranged at a plurality of key thermal nodes in the power bank and is used for collecting temperature signals; the main control MCU is mounted on the PCB and is coupled to the distributed temperature sensing network; wherein a first magnetic attraction module is arranged in the bottom plate, and a second magnetic attraction module is arranged in the cover plate, so that the double-sided magnetic attraction function of the power bank is realized. The magnetic attraction module and the wireless charging coil are integrated on the two faces of the bottom plate and the cover plate, simultaneous wireless charging of the two high-power devices is achieved, the charging efficiency and the flexibility of use scenes are greatly improved, and the real requirements of multi-device users are met.

The invention relates to a true random number generation method based on polarization entangled photon pairs, and belongs to the technical field of quantum random number generation. The invention provides a high-safety and high-reliability quantum random number source based on polarization entangled photon pairs, aiming at the limitation of an existing quantum random number generator in the aspects of safety and reliability. According to the technical scheme, a semiconductor laser is used for generating linear polarization pump light; light passes through a dual-wavelength polarization beam splitter DPBS to bidirectionally pump a periodically poled titanyl potassium phosphate crystal PPKTP in a Sagnac loop, and degenerate polarization entangled photon pairs are generated; after entangled photon pairs are separated by a polarization beam splitter (PBS), coincidence judgment on the detectors B and C is triggered by using a signal of the detector A, and original quantum random number seeds are generated; finally, the sequence is post-processed using the von-Noiemann method. The quantum random number source provided by the invention has high safety and high reliability.

This application provides a functional safety-based gear position monitoring method, device, and electronic device. When torque and speed information are available, ASILC-level torque and speed information is preferentially used as monitoring input information. This allows for direct calculation of the current gear at level C, improving the safety level of gear position monitoring and reducing driving risks caused by inaccurate gear position monitoring. When torque or speed information is unavailable, the current vehicle speed at level ASILB is used as input information to ensure uninterrupted monitoring of the current gear position. This strategy of using level C information as the primary source and level B information as a secondary source for monitoring the vehicle's functional safety gear positions enhances the safety level of gear position monitoring while ensuring that monitoring of the current gear position does not stop even if level C information monitoring malfunctions, thus improving the safety of the user while driving.

This invention discloses a self-activated solid waste slurry and its preparation method, comprising waste slag, a solid waste cementitious material, and water. The components are expressed as follows by weight percentage or parts: 100 parts waste slag; 15-60 parts solid waste cementitious material, wherein the solid waste cementitious material consists of a silicon-aluminum rich precursor, a strongly alkaline activation source, and a rheology-modifying supplementary source, with a mass ratio of 1:(0.2-0.8):(0.1-0.4); and water. This invention eliminates the highly corrosive liquid chemical activator required in traditional alkaline activation materials, achieving self-activation through dry powder premixing of a strongly alkaline activation source, a silicon-aluminum rich precursor, and a rheology-modifying supplementary source.

The invention discloses a vehicle active short circuit protection circuit, an EMB system, an EPS system and a protection method. The active short-circuit protection circuit for the vehicle is applied to a main circuit comprising a battery, an inverter, a gate driving module for driving the inverter and a motor. The active short-circuit protection circuit for the vehicle comprises a PWM output switch module which is connected in series between the output end of a gate pole driving module and the control end of each lower bridge arm switch tube of an inverter; the short-circuit protection power supply module is powered by a battery and is converted into voltage matched with each lower bridge arm switch tube; the short-circuit protection switch module is connected in series between the short-circuit protection power supply module and the control end of each lower bridge arm switch tube; and the short-circuit protection switch module is switched on when the voltage of the battery exceeds a set threshold value, and each lower bridge arm switch tube is controlled to be switched on, so that each stator winding of the motor is coupled. According to the embodiment of the invention, the fault in the line can be effectively removed.

The invention discloses a heterogeneous redundancy protection system and method for a commercial vehicle PDU. The system comprises an intelligent electronic protection module and an integrated physical fusing module which are connected in series with a power supply loop, and an integrated structural member which is used for deeply integrating the intelligent electronic protection module and the integrated physical fusing module into a whole. The intelligent electronic protection module realizes programmable primary active protection based on an eFuse principle; the integrated physical fusing module is a metal conductor with a customizable shape, and a fusing part which is subjected to thermal-electric design is arranged in the integrated physical fusing module and serves as a secondary final physical protection barrier when electronic protection fails. The integrated structural member realizes mechanical fixation and electrical connection, and enables the physical fusing module to have a heat dissipation function or a supporting function. Through the heterogeneous redundancy principle, single-point faults are fundamentally avoided, and the high requirement for vehicle gauge function safety is met; through deep integration and shape customizable design, the space utilization rate and the layout flexibility are greatly improved; and through modular design and state indication, convenient maintenance is realized.

The liquid-cooled battery module comprises a shell and a battery cell group, the shell comprises a bottom plate, a cover plate and a panel, the cover plate and the panel are detachably installed on the bottom plate, the cover plate is provided with a plane plate parallel to the bottom plate, a first side wall and a second side wall, the first side wall and the second side wall are perpendicular to the bottom plate, and the bottom plate, the cover plate and the panel form a space capable of containing the battery cell group; the bottom plate is provided with a liquid cooling flow channel. Compared with an existing air cooling mode, the liquid cooling channel is formed in the bottom plate of the liquid cooling battery module, the flow generated by the battery can be taken away through the cooling liquid in the liquid cooling channel in the using process, and the protection grade of the whole liquid cooling battery module can be improved while the heat dissipation problem of the battery is solved.

The invention discloses a control method, device and equipment of a multi-equipment kitchen linkage system and a medium. The multi-equipment kitchen linkage system comprises kitchen air conditioning equipment, at least two sets of range hood equipment and at least two sets of kitchen range equipment, and the range hood equipment and the kitchen range equipment are arranged in a one-to-one correspondence mode; the control method comprises the following steps: firstly, acquiring oil smoke concentration data at an air inlet of each range hood device, and cookware temperature data and kitchen environment data corresponding to each cooker device, and then according to at least one of the oil smoke concentration data at the air inlet of each range hood device, the cookware temperature data corresponding to each cooker device and the kitchen environment data, determining the cooking fume concentration of each range hood device; and cooperatively controlling the oil smoke suction mode of each range hood device and the air supply mode of the kitchen air conditioner device. According to the method, the problems that in the current kitchen environment, information barriers exist among multiple devices such as a range hood, a kitchen range and a kitchen air conditioner, and global optimization cooperative control cannot be carried out under the safety risks of cooking scenes, gas leakage and the like are solved, so that the systematicness and three-dimensional response capacity of the multiple devices is achieved.

The application relates to a communication chain-free motor control system based on physical layer self-adaption and reflection impedance mapping, which comprises a space magnetic flux self-adaption mechanism; a transmitting end coil of the space magnetic flux self-adaption mechanism is fixed on a primary side fixed base; a receiving end coil is arranged at one end of a secondary side sliding block, and the other end of the secondary side sliding block is connected with a secondary side mounting base through an SMA spiral driver and a balance spring respectively; the secondary side sliding block is slidingly mounted on a linear guide rail support and moves along the axial direction of the linear guide rail support; a metamaterial lens flat plate is coaxially arranged between the transmitting end coil and the receiving end coil; the transmitting end coil is connected with a primary side circuit for energy supply; and the receiving end coil is connected with a secondary side circuit for receiving wireless electric energy and driving a motor. The application cancels a secondary side communication module and a position sensor, converts complex algorithm optimization into self-regulation matching of a physical structure, and significantly improves the dynamic response speed, operation robustness and environmental tolerance of the system under severe working conditions such as strong radiation, deep water and high vacuum.