球场灯（SWT-2LH600W）

球场灯（SWT-ME600W）

Roof water storage and drainage control device for urban waterlogging prevention

The invention belongs to the technical field of water supply and drainage, and particularly relates to a roof water storage and drainage control device for urban waterlogging prevention. The roof water storage and drainage control device for urban waterlogging prevention comprises a building, a roof, four drainage controllers, four water diversion devices and four water baffle assemblies, each drainage controller comprises a gate, a linkage rod and a floating plate which are connected in sequence, and the four drainage controllers can slow down sudden increase of urban ground rainwater in a short period as much as possible; therefore, the occurrence of urban inland inundation when rainstorm suddenly drops in cities and the damage to urban infrastructures and property safety of people at the flood peak moment when the urban inland inundation occurs are reduced, and the water baffle assembly can prevent stored water from flowing out of the overflow port and the water outlet and directly falling ...

Energy storage array macroscopic consistency coordination control method and system and electronic equipment

The invention discloses an energy storage array macroscopic consistency coordination control method and system and electronic equipment, and relates to the technical field of energy storage system coordination control. According to the method, firstly, dynamic grouping selection control of a flywheel array is used as upper-layer control, and a flywheel array energy storage system preferentially selects the working state of an array group with matched power according to a power distribution instruction; secondly, the SOC difference of the flywheel units in the array is gradually reduced, so that the overall flywheel energy storage system (FESS) gradually tends to macroscopic consistency in the charging and discharging process, the control difficulty of multiple flywheels is reduced, meanwhile, frequent actions of the flywheels are reduced, the service life of the flywheels is prolonged, and waste of energy storage resources is reduced.

Photovoltaic power station data transmission system and cloud side cooperative control system

The invention provides a photovoltaic power station data transmission system and a cloud side cooperative control system, and belongs to the technical field of photovoltaic power station information transmission. The photovoltaic power station data transmission system comprises a production data transmission module which is in communication connection with an inverter data rapid transmission module and an auxiliary data transmission module; the production data transmission module is used for collecting production data of the inverter and the electrical equipment; the inverter data rapid transmission module is used for collecting control data of an inverter, analyzing and calculating the control data of the inverter and received production data, and compiling an SAMA logic diagram of a distribution scheduling instruction; and the auxiliary data transmission module is used for collecting monitoring data of the monitoring equipment, analyzing and diagnosing the monitoring data of the monitoring ...

Full-period management system for distributed photovoltaic power station cluster

The invention relates to a full-period management system for a distributed photovoltaic power station cluster, which can realize full-period management of the distributed photovoltaic power station cluster. The full-period management system comprises a collection module used for obtaining illumination conditions of a target area and project information of all photovoltaic power stations in the target area, and the project information comprises positions, cost and income of the photovoltaic power stations; the planning module is used for obtaining target construction positions of a plurality of distributed photovoltaic power stations to be constructed according to the illumination conditions and the project information; and the supervision module is used for acquiring the state information of the target distributed photovoltaic power station cluster constructed at each target construction position, and supervising the operation state of the target distributed photovoltaic power station cluster ...

Large-flow thin oil lubrication pipeline flushing device and flushing method

The invention discloses a large-flow thin oil lubrication pipeline flushing device and method, relates to the technical field of pipeline flushing devices, and aims to solve the technical problem that the pipeline flushing requirement of a large-pipe-diameter and large-flow thin oil lubrication system cannot be met in the prior art. The flushing device comprises an oil tank and accessories thereof, an oil supply device, a circulating heating device and a local operation box, the oil tank and accessories thereof comprise an oil tank body, the oil supply device comprises a first inlet safety signal butterfly valve and an oil return pipeline stop valve, the circulating heating device comprises a second inlet safety signal butterfly valve, and the machine-side operation box comprises a transmission cabinet, a control cabinet and an HMI operation display monitoring interface. According to the flushing device and the flushing method, two first oil supply pumps and motor devices are arranged to ...

High-affinity vibrio parahaemolyticus aptamer based on cutting and evolution screening

The invention discloses a high-affinity vibrio parahaemolyticus aptamer based on cutting and evolution screening. The high-affinity vibrio parahaemolyticus aptamer comprises: (1) a vibrio parahaemolyticus short aptamer with high binding performance obtained based on cutting; (2) an aptamer evolution screening method; and (3) screening the vibrio parahaemolyticus aptamer with high affinity and high specificity based on evolution. The method comprises the following steps: firstly, cutting an aptamer based on truncation, stem-loop cutting and gradual shortening, and carrying out result verification by utilizing qPCR (Quantitative Polymerase Chain Reaction) to obtain a vibrio parahaemolyticus short aptamer sequence with more excellent binding performance; in order to further improve the performance of the aptamer, the cut short aptamer sequence is introduced into a library for innovative evolution screening, and the vibrio parahaemolyticus aptamer with high affinity and specificity is obtained ...

Method for encrypting and decrypting data based on commercial cryptographic algorithm of mobile terminal

The invention discloses a method for encrypting and decrypting data based on a commercial cryptographic algorithm of a mobile terminal. The method is characterized in that the mobile terminal comprises an application layer, a component layer and a platform layer; a component layer comprises a national password TLS layer, an algorithm layer and an engine layer, and the method comprises the following steps that when a mobile terminal accesses data service of an enterprise intranet, an application layer of the mobile terminal is started firstly, and the application layer comprises the steps of generating a national password HTTPS request and requesting a national password SSL VPN client to receive the request based on the national password HTTPS; the user encryption and decryption interface responds to perform encryption processing; the application layer sends the corresponding data information to the national password TLS layer; the national secret TLS layer sends the data to the algorithm ...

Power distribution network data transmission method, device and equipment and readable storage medium

The invention provides a power distribution network data transmission method, device and equipment and a readable storage medium, and the method comprises the steps: updating a local model of each target edge device, uploading the local model to a corresponding target relay, carrying out the partial aggregation, obtaining each partial aggregation model, and carrying out the partial aggregation. And uploading each partial aggregation model to an edge server and performing global aggregation to obtain a global aggregation model, and finally transmitting and detecting the power distribution network data by using the global data model. Therefore, according to the scheme, the global aggregation model is obtained by processing and transmitting the model, user data does not need to be acquired, the privacy of the user is protected, meanwhile, the target edge device and the target relay are screened under the bandwidth condition that the system communication performance is not influenced, and the ...

Abnormal test message backtracking method

The invention discloses an abnormal test message backtracking method, which relates to the technical field of network security testing, and comprises the following steps: S1, setting an initial value of an abnormal message segment, namely defining a lower bound value Lower, an upper bound value Uper, a temporary lower bound value l and a temporary upper bound value u, and performing preliminary assignment; s2, finding out the lower bound of the minimum abnormal test message segment through a dichotomy; s3, locking the lower bound value Lower, and resetting the temporary upper bound value u to enable the temporary upper bound value u to be equal to the upper bound value Uper; s4, finding out the upper bound of the minimum abnormal test message segment through a dichotomy; s5, locking an upper bound value Uper; and S6, outputting the minimum abnormal test message segment. Through the dichotomy, the temporary upper bound value or the temporary lower bound value is changed into the intermediate ...

Cloud computing resource prediction method and device, computer equipment and storage medium

The invention relates to a cloud computing resource prediction method and device, computer equipment and a storage medium. The method comprises the following steps: acquiring user data and core service data of an application system; extracting feature data from the user data and the core service data; inputting the feature data into a pre-established storage resource prediction model, a database server resource prediction model and an application server resource prediction model for cloud computing resource prediction to obtain cloud computing resources required by the application system; the cloud computing resources comprise storage resources, database server resources and application server resources. By adopting the method, the cloud computing resources can be predicted from three parts respectively, accurate quantification of the cloud computing resources is realized, and the effectiveness of cloud computing resource prediction is improved.

PC side SSL VPN secure tunnel application method and system

The invention discloses a PC (Personal Computer) end SSL (Secure Socket Layer) VPN (Virtual Private Network) secure tunnel application method, which is characterized by comprising the following steps: a tunnel connection management module is connected with a state management module to control the connection state of a virtual tunnel, and the tunnel connection management module is connected with an encryption tunnel module; the tunnel connection management module is connected with the authentication module and calls the authentication module to request tunnel establishment; the authentication module obtains an authentication/encryption and decryption key from the key management module, and the authentication module calls the key management module to decrypt the returned data; the key management module and the encryption tunnel module carry out mutual encryption and decryption or key encryption, the encryption tunnel module calls the password management module to carry out encryption and ...

Encryption function positioning method for generating encrypted data in PLC communication process

The invention discloses an encryption function positioning method for generating encrypted data in a PLC (Programmable Logic Controller) communication process, which aims at a PLC communication authentication mechanism and comprises the following steps of: S1, capturing a communication data message through network packet analysis software; s2, key information is analyzed and extracted, and a key communication DLL is determined; s3, positioning a key encryption function in combination with the encryption features; and S4, comparing the encrypted data, and verifying the key encryption function. Through the steps, a key communication DLL in the PLC communication process can be positioned, an encryption function of encryption data in communication can be generated, then data required by authentication can be generated by introducing the positioned encryption function subsequently, and a message with a PLC operation instruction is constructed to test whether an authentication mechanism of a ...

Portable assembled medium-voltage distribution line OPGW residual cable rack

The invention discloses a portable assembly type medium-voltage distribution line OPGW residual cable rack, and relates to the technical field of residual cable racks, the portable assembly type medium-voltage distribution line OPGW residual cable rack comprises a cross beam, a vertical beam, an upper mounting hoop and a lower mounting hoop, the cross beam is provided with a first center hole, the front side of the first center hole is provided with a first connecting seat connected with the vertical beam, and the rear side of the first center hole is provided with a first limiting structure; a second center hole is formed in the vertical beam, and a second limiting structure which can be matched with the first limiting structure to limit the rotational degree of freedom of the vertical beam and the cross beam is arranged on the front side of the second center hole; each of the upper mounting hoop and the lower mounting hoop comprises a first hoop, a second hoop and a lug plate connecting ...

Network asset processing method and device, storage medium and electronic equipment

The invention discloses a network asset processing method and device, a storage medium and electronic equipment. The method comprises the steps that a first image of a target object is acquired, and the first image comprises identification information of the target object; determining a first feature corresponding to the first image; acquiring a plurality of second images including the identification information; second features corresponding to the multiple second images are determined, and the second features carry network asset information; and performing network asset surveying and mapping processing on the target object according to the first feature and the second features respectively corresponding to the plurality of second images to obtain a network asset surveying and mapping result of the target object. According to the invention, the technical problem that the network asset investigation is not comprehensive in the network asset surveying and mapping method in the related technology ...

Hot rolling water treatment system and low-carbon energy-saving control method

The invention relates to a hot rolling water treatment system and a low-carbon energy-saving control method.The hot rolling water treatment system comprises a hot water pool, a cold water pool, a cooling tower set, a hot water pump set and an electrical control module, and a bypass communicating pipe and an electric control valve are arranged at the high water level between the hot water pool and the cold water pool; water level detection instruments and temperature sensors are arranged in the hot water pool and the cold water pool, and water in the hot water pool can flow into the cold water pool through a hot water pump set and a cooling tower and can also directly flow into the cold water pool through a bypass communicating pipe and a control valve between the hot water pool and the cold water pool. Water level detection instruments and temperature sensors of the hot water pool and the cold water pool, a hot water pump set and a bypass control valve are connected with an electrical control ...

SSL VPN communication tunnel module, application monitoring module and mobile terminal security access system

The invention discloses an SSL (Secure Socket Layer) VPN (Virtual Private Network) communication tunnel module, an application monitoring module and a mobile terminal security access system. The SSL VPN communication tunnel module is characterized by comprising a step of identity security authentication and a step of information data transmission in a process of accessing a mobile terminal to an intranet application server; wherein the mobile terminal establishes an SSL VPN tunnel with the SSL VPN gateway equipment by using a standard SSL protocol in the process of accessing the intranet application server, and access authority management, log management and SSL VPN services are added on the basis of the SSL protocol in an SSL VPN encryption channel. According to the method, the data connection security of the user is protected, the user obtains the resources which can access the enterprise network, the data transmission is encrypted by adopting the GM SSL encryption algorithm, the security ...

Internal thread parameter detection method and system based on laser point cloud analysis

The invention discloses an internal thread parameter detection method and system based on laser point cloud analysis, and aims to overcome the defects that a thread parameter result obtained through a traditional internal thread measurement mode is incomplete and the speed of traditional thread measurement is low. In the system, outlier elimination, cylindrical surface fitting and sawtooth wave fitting related operations are carried out on the point cloud information, and parameters of the major diameter, the minor diameter, the pitch diameter, the thread pitch and the thread angle of the internal thread can be solved.

Power distribution network transverse access detection method and device, computer equipment and storage medium

The invention relates to a power distribution network transverse access detection method and device, computer equipment, a storage medium and a computer program product. A historical qualified access data set is determined based on the distance between multiple pieces of qualified access power distribution equipment and target power distribution equipment, and a target Gaussian mixture model is trained based on the historical qualified access data set; determining a to-be-detected distance between the first position information of the to-be-detected power distribution equipment and the second position information of target power distribution equipment needing to be accessed, and inputting the to-be-detected distance into a target Gaussian mixture model, and determining whether the to-be-detected power distribution equipment is qualified in access or not based on a comparison result of the to-be-detected distance output by the target Gaussian mixture model and the decision boundary, the ...

Separation and purification method of ochratoxin degrading enzyme

The invention belongs to the technical field of agricultural biology, and discloses a method for separating and purifying ochratoxin degrading enzyme, which comprises the following steps of: fermenting and culturing a production strain to obtain extracellular supernate; carrying out ammonium sulfate salting-out on the extracellular supernate to obtain crude enzyme liquid; performing hydrophobic column chromatography to obtain an ochratoxin degradation active component; performing high-resolution activity electrophoresis gel cutting recovery to obtain an ochratoxin degrading enzyme component; and identifying the ochratoxin degrading enzyme by mass spectrometry. According to the method, ammonium sulfate salting-out, hydrophobic chromatography and high-resolution-activity electrophoresis gel cutting purification are connected in series, the purification process is shortened, the purification time is shortened, and the sample treatment process is simplified. By utilizing the method disclosed ...

Primary frequency modulation control strategy and capacity configuration integrated optimization method and system

The invention discloses a primary frequency modulation control strategy and capacity configuration integrated optimization method and system, and belongs to the field of flywheel energy storage. A regional power grid primary frequency modulation model is established, primary frequency modulation power instruction historical data is used as an input signal, system frequency deviation and an energy storage charge state are obtained, an objective function capable of reflecting advantages and disadvantages of a control strategy and capacity configuration is established, optimal solution is performed on the objective function through a particle swarm algorithm, and the optimal control strategy and capacity configuration is obtained. The optimal primary frequency modulation control strategy parameter and the optimal capacity configuration of the flywheel energy storage system are obtained, comprehensive evaluation of the frequency modulation effect and the capacity configuration effect under ...

Mobile terminal SSLVPN secure tunnel application method and system

The invention discloses a mobile terminal SSLVPN secure tunnel application method and system, the method comprises an identity verification step and a tunnel establishment step, the system comprises a mobile client and an SSLVPN server, and the mobile client is internally provided with a secure tunnel component and a cryptographic algorithm component; the security tunnel component comprises an engine calling module, a tunnel management module, a secret key certificate module, a strategy acquisition module, a connection management module and a security detection module; the cryptographic algorithm assembly comprises a cryptographic operation module, a cryptographic management module and a security audit module; when the mobile client and the SSLVPN server platform communicate, a sender encrypts and signs the transmitted information, a receiver verifies and decrypts the information, and a signature certificate, an encrypted public and private key pair, a certificate and a signature certificate ...

Ochratoxin degrading enzyme BnOTase4 as well as gene and application thereof

The invention belongs to the technical field of agricultural biology, and relates to ochratoxin A (OTA) and ochratoxin B (OTB) degrading enzyme BnOTase4 as well as coding genes and application thereof. The invention provides a degrading enzyme BnOTase4. The amino acid sequence of the degrading enzyme BnOTase4 is as shown in SEQ ID NO. 1; a gene for coding the degrading enzyme is provided, and the base sequence of the gene is shown as SEQ ID NO.2; the invention also provides an application of the degrading enzyme in degrading OTA and OTB. The BnOTase4 degrading enzyme has the degradation activity of OTA and OTB, and the degradation rate reaches 100%. In a degradation system with the temperature of 37 DEG C and the pH value of 7.4, the Michaelis constant Km measured by taking OTA and OTB as substrates respectively is 1.09 mu mol/L and 0.64 mu mol/L. The degrading enzyme BnOTase4 can be applied to the fields of food, feed, agriculture and the like, and harm of ochratoxin to human and animal ...

Power distribution network longitudinal access detection method and device, computer equipment and storage medium

The invention relates to a power distribution network longitudinal access detection method and device, computer equipment, a storage medium and a computer program product. A historical qualified access data set is determined based on the distance between multiple pieces of qualified access power equipment and target power equipment, and a target Gaussian mixture model is trained based on the historical qualified access data set; determining a to-be-detected distance between the first position information of the to-be-detected power equipment and the second position information of the target power equipment needing to be accessed, and inputting the to-be-detected distance into the target Gaussian mixture model, and based on a comparison result of the to-be-detected distance output by the target Gaussian mixture model and the decision boundary and the type to which each power device belongs, determining whether the to-be-detected power device is qualified in access. Compared with a traditional ...

Rolling bearing voiceprint anomaly detection method based on MDE-SVDD

The invention discloses a rolling bearing voiceprint anomaly detection method based on MDE-SVDD, relates to the technical field of rolling bearing anomaly detection, and solves the technical problem of low rolling bearing anomaly detection efficiency under strong noise. MFCC features are extracted and sent to support vector data description (MDE-SVDD) based on Mahalanobis distance weighting for anomaly detection. Through a Mahalanobis distance weighting method, the problems that the operation data of the rolling bearing is easily interfered by noise and the SVDD does not consider the data density distribution are solved. According to the method, fault features can be effectively extracted from vibration signals containing noise of different intensities, and the method has good diagnosis performance, higher accuracy, fewer training parameters, high convergence speed and good robustness.

Data transmission method, data sending end and data receiving end

The invention provides a data transmission method, a data sending end and a data receiving end, and the method comprises the steps: the sending end generates a first secret key, carries out the encryption of target power data through employing the first secret key, and obtains a first ciphertext; the sending end receives the public key, and encrypts the first secret key by using the public key to obtain a second ciphertext; and the sending end sends the first ciphertext and the second ciphertext to a receiving end, so that the receiving end decrypts the second ciphertext by using the private key to obtain the first key after receiving the first ciphertext and the second ciphertext, and decrypts the first ciphertext by using the first key to obtain the target power data. According to the data transmission method and device, the problem that in the prior art, the safety of the data transmission process is low is solved, and the safety of data transmission is improved.