333results about How to "Avoid swapping" patented technology

An apparatus and method for performing multithreaded operations includes partitioning the general purpose and / or floating point processor registers into register subsets, including overlapping register subsets, allocating the register subsets to the threads, and managing the register subsets during thread switching. Register overwrite buffers preserve thread resources in overlapping registers during the thread switching process. Thread resources are loaded into the corresponding register subsets or, when overlapping register subsets are employed, into either the corresponding register subset or the corresponding register overwrite buffer. A thread status register is utilized by a thread controller to keep track of READY / NOT-READY threads, the active thread, and whether single-thread or multithread operations are permitted. Furthermore, the registers in the register subsets include a thread identifier field to identify the corresponding thread. Register masks may also be used to identify which registers belong to the various register subsets.

The present invention discloses a system for automatically exchanging cleaning tools of a robot cleaner and a method therefor. The system for automatically exchanging the cleaning tools of the robot cleaner includes the robot cleaner for deciding whether a currently-mounted first cleaning tool is suitable for a bottom state of a cleaning area, and returning to and being docked on an exchange unit when the first cleaning tool is not suitable for the bottom state, and the exchange unit for exchanging the first cleaning tool currently mounted on the robot cleaner with a second cleaning tool suitable for the bottom state when the robot cleaner is docked.

The invention relates to a liquid compound biological fertilizer with long shelf life as well as a preparation method and application thereof. The liquid compound biological bacterial fertilizer comprises the following components in parts by weight: 2-5 parts of microbial thalli, 80-130 parts of compound nutrients, 10-30 parts of thalli protective agents and 0.5-3.0 parts of additives, wherein the microbial thalli is metered in terms of the wet weight of deposition obtained after fermentation liquor is centrifugalized, the microbial thalli include bacillus thuringiensis, bacillus megaterium, bacillus mucilaginosus and bacillus amyloliquefaciens, and the total viable count achieves 5*10<8>-5*10<9> / mL. The liquid compound biological bacterial fertilizer disclosed by the invention can be used as a biological pesticide, can be directly applied to the spraying of plant surfaces or applied to seed soaking, root irrigation, and the like, has the effects of insect resistance, phosphate solubilization, potassium solubilization, organic matter solubilization, pest resistance, and the like and is long in shelf life.

The invention discloses a method for deducing a vehicular infrastructure-based connectivity model in an urban scene. According to the method, a trunk road network is defined and composed of a plurality of intersection gateways i1, i2...im, and the intersection gateways are adjacent to a group of roads r1, r2...rn, wherein n=m-1. Four attributes of connectivity of the trunk road network are modeled by acquiring the running speeds of all vehicles on each road in the trunk road network and the transmission range of an equipped vehicular network wireless communication device and collecting statistics on the vehicle density on the roads. According to the method, propagation of messages via the trunk road network composed of urban roads and intersection gateways is studied for the objective problems of low interconnection coupling degree and different application program demands in the vehicular network of the urban scene, four connection properties during vehicular network interconnection are formed, and a vehicular infrastructure-based connectivity model in the urban scene is proposed according to the properties, so that the method has an important theoretical guiding significance for the development of large-scale application of the vehicular network.

A method for treating city sludge by the rotary kiln of preparing cement features that said sludge containing calcium hydroxide is calcined in said rotary kiln to become calcium oxide. Its apparatus is composed of a sludge pre-treating unit and new material synthesizing unit. The spiral blades of the screw stirring-delivering mechanism have the concave-convex structure on their edge, resulting in high stirring effect and strength.

The invention provides a preparation method for synthesizing a Cu-SSZ-39 molecular sieve based catalyst by using a one-step method and application. By using the one-step method, the Cu-SSZ-39 molecular sieve based catalyst is synthesized through a double template; the copper load is controlled at 2.00-5.00 wt.% by controlling the input ratio of copper sulfate-tetraethylenepentamine to the organic template; and meanwhile, the silica-alumina ratio of USY is controlled to reach the silica-alumina ratio of 4.5-16.4 in the controlled product so that the Cu-SSZ-39 molecular sieve based catalyst with higher degree of crystallization, excellent catalytic activity and hydrothermal stability; and the Cu-SSZ-39 molecular sieve based catalyst is suitable for the nitrogen oxide purification processes in diesel vehicle aftertreatment Urea-SCR system catalysts and fixed sources NH3-SCR. Compared with the existing synthetic method, the preparation method for synthesizing the Cu-SSZ-39 molecular sieve based catalyst by using the one-step method, provided by the invention, has the advantages that the process is simple, repeated uses of an ammonium nitrate and copper salt solution ion exchanging and calcining process are avoided, and a defect that the traditional one-step synthetic method can only load an active component through the later ion exchanging process is overcome. By using the cheap template, the preparation method for synthesizing the Cu-SSZ-39 molecular sieve based catalyst by using the one-step method greatly reduces the production cost and is beneficial for industrial amplification applications.

The invention relates to a sealing mechanism preventing gas exchange. The sealing mechanism comprises a stress block (3), a pressing block (4) and a compressing mechanism (5), wherein the stress block (3) is connected with a fixed part (1) and is in clearance fit with a rotating part (2); the pressing block (4) is in clearance fit with the rotating part (2) in a rotating mode; the compressing mechanism (5) is fixedly connected with the rotating part (2); the pressing block (4) presses the stress block (3) through the compressing mechanism; the stress block (3) is provided with a first sealing strip (3c); a second sealing strip (4e) is placed in a cavity (4d) of the pressing block (4); a first gap (2a) formed between the pressing block (4) and the outer wall surface of the rotating part (4) is sealed through the second sealing strip (4e); a threaded rod (7a) of a compressing screw (7) of the compressing mechanism (5) applies pressure to a force applying surface (4a2) of the pressing block (4), and the pressing block (4) compresses the first sealing strip (3c) of the stress block (3) through a first pressing surface (4a2) of a compressing surface (4a1) so that a second gap (8) formed between the pressing block (4) and the stress block (3) can be sealed. The sealing function is achieved through the simple mechanical sealing mechanism, gas exchange through the gap formed between the fixed part and the rotating part is prevented, in this way, external gas is prevented from entering the rotating part through the gap, and meanwhile gas inside the rotating part is prevented from leaking outwards through the gap.

The invention relates to a preparation method of high-purity polydextrose with controllable molecular weight. The method comprises the following steps of: carrying out the reaction among dried dextrose, sorbierite and citric acid in a low-temperature vacuum environment while stirring; then adding warm water to dissolve the materials and regulating pH value; separating by using an ultrafiltration membrane and a nanofiltration membrane; carrying out chromatograph; and finally dewatering and concentrating, and carrying out spray drying to obtain a powdery product with molecular weight in any onerange below 50,000. The product prepared by the method is uniform and has good taste, and a white powdery polydextrose finished product can be obtained.

The invention discloses a warehouse management system based on the Internet of Things, and a warehousing quality risk estimation method based on the warehouse management system, and relates to the field of cold chain logistics and intelligent warehousing. The system comprises a warehousing environment and material information sensing unit, an RFID middleware unit, warehousing onsite operation units, a data center unit, and a cloud service center unit. The warehousing environment and material information sensing unit is integrated on a sensing label. The RFID middleware unit is integrated on an RRID reader-writer. The warehousing onsite operation units are integrated on the reader-writer and a warehouse working terminal. The data center unit is deployed on the data server. The cloud service center unit is deployed on an application server. According to the invention, a BP neural network algorithm is creatively used for the risk early warning of the system, thereby achieving the real-time state analysis and warning of cold chain warehoused materials, and effectively solving a problem of warehousing quality risk estimation and alarm of fresh agricultural products in a cold chain warehouse. The system is good in application prospect.

The present application discloses a digital signature method for cooperative SM2. The method in one embodiment comprises the following steps: a first participant calculates SM2 algorithm summary dataand the summary of the to-be-signed data, obtains a data summary, and sends a first message to a second participant, and the first message carries the data summary; the second participant receives thefirst message, determines a second participant signature share of the second participant based on the data summary, and performs synthesis based on the second participant signature share to obtain afirst participant signature share ciphertext; the second participant sends a second message to the first participant; the second message carries the first participant signature share ciphertext; the first participant decrypts the first participant signature share ciphertext and obtains the first participant signature share. The embodiment avoids multiple data exchanges and operations, thereby reducing the complexity of communication and calculation.

A system and method for managing memory in a mobile device to prevent the swapping out of sensitive data to non-volatile storage from a volatile memory, to provide enhanced security for the sensitive data. In one broad aspect, there is provided a method of managing memory in a mobile device comprising the steps of identifying one or more data objects stored in a volatile memory on the mobile device to be swapped out to a non-volatile storage component, determining objects marked as containing sensitive data, and retaining so-marked objects in the volatile memory of the mobile device.

The invention relates to a synthesis method of an HZSM-5 molecular sieve, which comprises the following steps: (1) mixing an aluminum source, a silicon source, a template, ammonia water, ethanol and water, and stirring uniformly until dry glue powder forms a gel; drying the gel, and pulverizing into powder; (2) putting the dry glue powder in a water-containing reaction kettle, and crystallizing in a static state; and (3) washing the crystallization product, drying and roasting to obtain the product. The method does not use any sodium-ion-containing raw material, thereby avoiding the traditional ammonium exchange, washing and roasting process. The method avoids the separation between the product and mother solution in the traditional crystallization technique, and has the characteristics of low template consumption, low waste liquid amount, high yield, low cost, low pollution and the like.

The invention relates to a culture pond system realizing rotational-flow dirt collection. The culture pond system comprises a circular or a regularly polygonal pond body, wherein the center of the pond body is tapered downwards to a certain extent; a rotational-flow dirt-collecting device is arranged at the bottom of the pond body and is provided with a motor, the motor drives a horizontal supporting rod to rotate, and one end of the supporting rod is connected with a propeller; the distance from the propeller to the bottom of the pond body is smaller than 1 m; a supporting column is arranged below the motor and fixedly connected with a dirt collecting tank, the dirt collecting tank collects solid particles and is communicated with a bottom particle discharge pipe, and sewage is discharged out of the pond body through the bottom particle discharge pipe; a clean water discharge pipe is arranged on the side wall of the pond body, and a water inlet pipe and an aeration oxygenation pipe are arranged in positions near the side wall of the pond body; upper-layer clean water discharged through the clean water discharge pipe accounts for 80%-90% of the total amount of discharged water and flows back to the pond body through the water inlet pipe after being purified by a water purifying system; sewage discharged through the bottom particle discharge pipe accounts for 10%-20% of the total amount of discharged water.

The invention relates to a cooperative frequency spectrum sensing method based on consistency in a cognitive radio electric network, which comprises the following steps: causing cognitive radio users to carry out frequency spectrum sensing measurement to a main radio user, establishing radio communication link alternating current frequency spectrum sensing measurement result information among all the cognitive radio users, judging whether the main radio user exists or not and carrying out subsequent frequency spectrum shared access operation according to judgment results. Reliable radio communication in the cooperative frequency spectrum sensing process is ensured by adopting the cooperative frequency spectrum sensing method based on the consistency in the cognitive radio electric network and utilizing a distributed model, so that not only can the cognitive radio users in the cognitive radio electric network can better effectively sense the frequency range use situations of an unauthorized user, but also can the cognitive radio users use more network resources on the premise of not influencing the authorized user, so that the probabilities of detection loss and early warning error are reduced, the utilization ratio of the network resources is improved, the working performance is stable and reliable, and the application scope is wider.

The invention relates to a hazardous chemical substance management system and method. The management system comprises an online application platform, an online hazardous chemical substance database and an intelligent safety storage cabinet. The online application platform is used for submitting the warehouse-out application information of the hazardous chemical substances, the online hazardous chemical substance database is used for recording and updating the hazardous chemical substance information, and the intelligent safety storage cabinet is provided with a safety door, an RFID reading device, a card swiping device, a face recognition device, a communication module or an intranet and a control unit. The RFID reading device is used for reading the RFID identifiers of the hazardous chemical substances, the card swiping device is used for reading the identity card information, the face recognition device is used for reading the face information, and the communication module is used for being in data connection with the online application platform and the online hazardous chemical database. According to the invention, through the combination of software and hardware, the omnibearing and full-platform informatization management is carried out on purchase, sale and storage of the hazardous chemical substances, a complete record report of the hazardous chemical substances from thewarehouse delivery to each use is formed, and the permanent query and traceability are formed.

The invention discloses a system and a method for preparing carbon dioxide gas needed by carbonate coupled isotope analysis. The system comprises a reaction unit, a purification unit, a collection unit, a vacuumizing unit and a heating device, wherein the reaction unit comprises at least one carbon dioxide gas reaction generation device for generating carbon dioxide gas; the purification unit comprises a cold trap assembly for freezing and collecting the carbon dioxide gas generated by the carbon dioxide gas reaction generation device and removing moisture and organic hydrocarbon impurities from the carbon dioxide gas; the collection unit comprises at least one gas collecting device for collecting carbon dioxide gas purified by the purified unit; the heating device is used for heating connecting pipelines of the reaction unit, the purification unit and the collection unit and is further used for heating the purification unit.

The invention is suitable for the information security field of the internet of things, and provides an equipment user permission acquisition method and system based on internet of things. The method comprises the following steps: acquiring user information according to a request for the use permission of the equipment by a user and receiving a delegation certificate sent by a possessor end; decrypting and verifying the validity of the delegation certificate and judging whether the request for the use permission of the equipment by the user meets a condition of acquiring the use permission of the equipment; generating an authorization certificate when the request meets the condition; encrypting the authorization certificate, and sending the encrypted authorization certificate to the user, thereby enabling the user to pass the verification on the authorization certificate by the equipment. The user acquires the use permission of the equipment through a request agent end, the agent end acquires the delegation certificate and like information from the possessor according to the request of the user, the direct information exchange between the user and the possessor is avoided, the personal information security of the possessor can be protected, and the permission acquisition request on the equipment by the user can be satisfied.

The invention discloses a cell cryopreservation device for biological 3D printing and a method thereof. The cell cryopreservation device comprises a box body, a box cover connected with the box body and a preserving device located in the box body; and the preserving device comprises cell cryopreservation large tubes, a preserving rotation disc, a ratchet wheel, a driving pawl, a driving swinging rod, a driving pushing rod, a locking pawl, a fixing rod, a supporting structure, a connecting rod, an ejection rod and a torsion spring. The cell cryopreservation device is small in size and low in weight, is modularized and can be installed on a portable 3D printer, the heavy defect of an existing preserving device is improved, the safety and convenience of the preserving link are improved, a low-temperature environment capable of preserving cells for a long time is created, and the cell cryopreservation device is suitable for motorized application places.

The invention discloses a waterborne inorganic heat-insulating, waterproof and environment-friendly coating for buildings and a preparation method of the coating, and relates to the technical field of building materials. The invention provides the waterborne inorganic heat-insulating, waterproof and environment-friendly coating for the buildings, which are good in heat-insulating and heat-preserving and waterproof performances, strong in bonding force and resistant to wear. The environment-friendly coating is prepared from a binding agent, a film-forming additive, a heat-reflecting filler, a heat-insulating filler and water; the preparation method disclosed by the invention comprises the following steps: weighing raw materials; adding a dispersing agent into water and uniformly stirring; adding a silicate solution, an alkyl-modified silicate solution, a silicone acrylic emulsion, a silane coupling agent and a leveling agent and uniformly stirring; adding silica aerogel, kaolin, a heat-insulting filler and an inorganic pigment and uniformly stirring; filtering to obtain waterborne inorganic heat-insulating, waterproof and environment-friendly coating for the buildings. The coating disclosed by the invention has the advantages of heat insulation, heat preservation, water resistance, good binding force with cement, tiles and metals, scratch resistance, fastness, greenness, environmental protection and the like.

The invention discloses a wire-tubular-type low temperature plasma unit reactor for treating industrial waste gases and an assembly system thereof. The unit reactor is composed of a reactor positive electrode, a circular pipe external electrode and a sealing ring. The reactor positive electrode is formed by central electrodes with different types and insulation components. The insulation supports on the insulation components are stuck into rolled steel grooves of the circular pipe external electrode to form the unit reactor. According to actual requirements of waste gas treating engineering, N unit reactors are employed to be assembled in series and parallel ways and a reactor matrix is formed. The reactor matrix and compression screws are assembled to form a single-box reactor through reactor supporting plates. The single-box reactors are connected in series and electrically connected through box body seal heads and box body flanges and a reactor assembly system is formed. The assembly system is suitable for treatment of various gases with peculiar smell, high-humidity?gases and smoke zones in different quantitative grades. The product is advantaged by safety, energy saving and environmental protection, the flexibility of the system layout is strong, the adaptive condition range is wide and the service life is long.

The invention provides a fully-sealed SMIF system. A first air nozzle hole is formed in a forwarding plate; air nozzles are mounted on a bearing platform; an air inlet hole and a pressure exhausting valve are arranged at the bottom of a container, so that gas replacement in the container can be realized; a first sealing ring is arranged between a mounting plate and the side surface of a box body, so that the system sealing property is improved; a second sealing ring is arranged on the periphery of an operating port of the mounting plate; when the forwarding plate drives the container to move to an operating position, the container is in contact with the second sealing ring, so that the sealing property between the container and the operating port of the mounting plate can be improved; a third sealing ring is arranged on one surface, towards the container, of a box opening plate, so that the sealing property between the box opening plate and the operating port of the mounting plate can be improved; a box opening part, a lifting part and a detection part are all arranged in the box body, so that maintenance can be performed conveniently; and therefore, the fully-sealed SMIF system is high in sealing property, and exchange of dust, gas and water vapor between the environment in the box body and the environment outside the box body can be well avoided.

The invention discloses a gas cylinder safety filling control method and system based on double tags and an integrated circuit (IC) card. The method comprises the following steps of: initializing a vehicle after the vehicle is equipped with a gas cylinder for the first time, reading a unique identifier of the gas cylinder, and packaging the unique identifier and unique identification information of the vehicle in a vehicle-mounted terminal; initializing the IC card, and packaging driver information as well as corresponding vehicle information and gas cylinder information in the IC card; and acquiring the unique identifier of the gas cylinder and the unique identification information of the vehicle, which are packaged in the vehicle-mounted terminal, in the process of filling the gas cylinder, matching the unique identifier of the gas cylinder and the unique identification information of the vehicle with the tag information on the gas cylinder and the information in the IC card, and controlling the gas filling if the gas filling requirement is met. When the vehicle is initialized, the gas cylinder and the vehicle are bound in a one-to-one mode by reading the unique identifier of the gas cylinder and packaging the unique identifier and the unique identification information of the vehicle in the vehicle-mounted terminal. The problems that a legal gas cylinder is illegally transformed to other vehicles and that IC cards are optionally exchanged among drivers are effectively solved.

This invention relates to a fast booking out of multiple access methods, including: central control node has been successful under the current access and the number of nodes installed idle channel resources of the competition slot number; center control nodes in the first or second Channel announced appointments, whit the mentioned competition slot; nodes go to compete booking in the first channel then shoe to, the second channel; Center control nodes receive the booked on the first signal channel, receive at the second channel at the same time access results and the success of nodes to access the distribution channel resources; each node in the distribution channel resources were Send business groups without conflict. This invention effectively eliminate the signal propagation delay channel throughput of the adverse effects and reduce the appointment of hidden terminal and exposed terminals, packet transmission in the business also eliminates collisions, particularly suitable for the transmission delay as a communication link on the use of Channel Access Multiple Access Method.

The invention relates to a method of MR imaging of at least two chemical species having different MR spectra. It is an object of the invention to provide a Dixon water / fat separation technique that avoids swaps of water and fat signals in the reconstructed MR images due to large gradients of the main magnetic field B0. The method of the invention comprises the steps of: a) generating echo signals at different echo times by subjecting an object (10) positioned in a main magnetic field to a multi-echo imaging sequence of RF pulses and switched magnetic field gradients; b) acquiring the echo signals; c) correcting the acquired echo signals by virtual shimming, which comprises:—reconstructing single echo images from the echo signals;—selecting a number of voxel positions;—fitting a given mathematical function, which reproduces the spatial variation of the main magnetic field, to the echo time-dependent phase evolution of the single echo image values at the selected voxel positions; demodulating the single echo images according to the spatial variation of the main magnetic field as reproduced by the mathematical function; and d) reconstructing a MR image, wherein signal contributions of the at least two chemical species are separated on the basis of the demodulated single echo images. Moreover, the invention relates to a MR device and to a computer program to be nm on a MR device.

The invention discloses a concrete specimen witness sampling system and method based on two-dimensional code and image recognition anti-counterfeiting, comprising a two-dimensional code and a positioning label for uniquely identifying a pair of embedded concrete specimens, Witness sampling and supervision personnel scan the two-dimensional code through WeChat client, and upload photos of witness and sampling personnel, photos of concrete specimen, current position information, photos of two-dimensional code on concrete specimen, photos of two-dimensional code and positioning label on concretespecimen to the cloud server data center. The three cameras upload their respective videos to the cloud server data center to monitor the testing process of concrete specimens. The cloud server data center compares the received video and pictures, identifies the concrete specimen for anti-counterfeit, and feeds back the identification results to the WeChat client and the witness sampling supervision and management platform. The invention can guarantee the traceability of each link and the authenticity of the witness sampling and the concrete test piece.

The invention relates to a wireless sensor network route method based on an artificial potential field. The wireless sensor network route method includes the four steps of initializing, route building, route uploading and data transmitting. The problems that in the prior art, the route cost and the route energy consumption are large, and route selection does not have the load balancing function are solved, the calculation complexity is lowered, a large amount of route cost is avoided, the energy efficiency is improved, and the network load balancing function can be achieved.

The invention discloses a settling deploying method for underwater sensor nodes based on an ideal pattern model. The settling deploying method comprises the following steps: randomly deploying m mutually-communicated sensor nodes on the water surface of a given target region, determining the minimum number n of ideal pattern nodes required for the complete coverage and communication of the given target region, assigning a water surface node to an ideal pattern position corresponding to each ideal pattern node, setting each matched node to the depth of the corresponding pattern position, judging whether the deployed nodes form a communicated network, if no, searching network sub-regions which are not communicated, and carrying out network connectivity repairing; and finally, if redundant nodes exist on the water surface, repairing a converge cavity of the deployed network by virtue of the redundant nodes, so as to enable the redundant nodes settled from the water surface to be communicated with the underwater nodes. By virtue of the settling deploying method, the maximum coverage rate of an underwater 3D target region and full communication of the network nodes can be realized through once settling deploying of the sensor nodes.

The invention relates to the technical field of molecular sieve synthesis and discloses a method for synthesizing Cu-SSZ-13 in one step under a sodium-free system. Initial gel is prepared from an aluminum source, a silicon source, a copper ammonia complex and a copper ion load regulator; the initial gel is crystallized and then subjected to filtration, washing, drying and calcination, and the Cu-SSZ-13 molecular sieve is obtained. No conventional sodium hydroxide is used as an alkali source, the sodium content of other raw materials is very low, so that synthesis of the Cu-SSZ-13 molecular sieve under the sodium-free system is guaranteed, and copper ion loading and improvement of stability of copper ions in the target product are facilitated; due to addition of the copper ion load regulator, the load of copper ions is regulated freely in a certain range, and different reaction technological condition requirements are met. The method is simple to operate, repeated ion exchange and calcination technologies are avoided, so that the traditional technological process is greatly simplified, the production cost is reduced effectively, and the method is energy-saving and environmentally friendly, and has enormous industrial application prospects.

The invention relates to a system and method for managing hazardous chemicals easy to produce poison and explode. The system for managing hazardous chemicals easy to produce poison and explode comprises an online database for hazardous chemicals easy to produce poison and explode, an electronic scale and an intelligent safe storage cabinet, wherein the online database for hazardous chemicals easyto produce poison and explode is used for recording and updating names, types, quantity, service life, out-of-cabinet and in-cabinet information of hazardous chemicals easy to produce poison and explode and formula combination information of synthetic drugs or explosives of hazardous chemicals easy to produce poison and explode. The intelligent safe storage cabinet comprises a cabinet body, wherein the cabinet body is provided with a safety door, an RFID reading device, a card swiping device, a face recognition device, a communication module and a control unit. According to the system and themethod, the upper limit value of the single use of the hazardous chemical substances which are easy to produce poison and easy to produce explosion and the single use of the hazardous chemical substances which are easy to produce poison and easy to produce explosion at the same time are monitored by combining software and hardware, so that the hazardous chemical substances which are easy to produce poison and easy to produce explosion are prevented from being illegally used and excessively used, and potential safety hazards caused by illegal use are reduced.

The invention relates to an experimental data acquisition and monitoring system and a method for combining two-dimensional code and video monitoring. The experimental data remote monitoring subsystem,the witness sampling subsystem, the experimental data management system and the video monitoring subsystem are all connected with a cloud server. The first camera is mounted on the test machine and connected with the test data management system. The test data management system is connected with the test machine. The second camera and the third camera are connected with the video monitoring subsystem, and the third camera is used for photographing the second camera and the photographing process of the first camera. The first WeChat client is connected with a test data remote monitoring subsystem; The second WeChat client is connected to the witness sampling subsystem. The invention establishes a perfect and traceable test detection mechanism, unifies and perfects relevant specifications inthe process of project construction, and ensures the authenticity and accuracy of test data.