39results about How to "Safe and Stable Transmission" patented technology

The invention provides a data transmission method and device, and the method comprises the steps: carrying out the customized collection of different data sources to obtain different collected data, and enabling the different collected data to be analyzed into data packets in a unified data format; writing the data packets in the unified data format into a data pipeline for caching; reading a datapacket cached in the data pipeline, and writing the read data packet into a downstream data storage service to realize data transmission; and in the data transmission process, limiting the data reading flow rate according to the preset flow peak value of the downstream data storage service. Therefore, the data is locally buffered through the data pipeline, and the data transmission flow is dynamically adjusted through the flow control assembly, so that the whole transmission process is safe and stable, and the data transmission rate is effectively improved.

An all-weather maintenance system for an offshore wind turbine maintenance program includes a maintenance capsule for transporting tools, parts and maintenance personnel to and from respective wind turbine towers, a maintenance vessel with a capsule support apparatus for transporting capsules supported on board by the capsule support apparatus to and from respective wind turbine towers, and a crane assembly with a trolley for transporting capsules between the respective wind turbine towers and the maintenance vessel.

The invention discloses a double-sided cleaning device for plane glass plate processing. The double-sided cleaning device comprises a cleaning box, an upper pressure roller set, a lower pressure roller set, an upper cleaning unit, a lower cleaning unit, a water storage tank and universal driving shafts. The cleaning box is fixed to the top of the water storage tank, and the cleaning box communicates with the water storage tank through backflow holes. A feeding inlet and a discharging hole are separately formed in two sides of the middle portion of the cleaning box, and a glass plate is disposed in the feeding inlet and the discharging hole in a penetrating mode. According to the double-sided cleaning device for the plane glass plate processing, the upper pressure roller set and the upper cleaning unit are arranged on the upper portion of the glass plate, and the lower pressure roller set and the lower cleaning unit are arranged on the lower portion of the glass plate; and the upper pressure roller set and the lower pressure roller set drive the glass plate for transmission, and at the same time, the upper cleaning unit and the lower cleaning unit simultaneously clean the upper andlower surfaces of the glass plate. The input and output of the glass plate are facilitated, the stable and safe transmission of the glass plate is ensured, and cleaning disks and the glass plate can be flushed in an abutting mode; and the cleaning efficiency of the glass plate is improved, and double-sided synchronous cleaning operation is achieved.

The invention discloses an industrial IoT information transmission method and device based on the DL / T645 protocol. The present invention uses widely distributed power lines as the medium of information transmission, greatly reduces factory operating costs, reduces the cost of setting up new communication networks, and meets the requirements for the development of intelligent manufacturing. With the DL / T645 protocol as the main communication protocol, the power carrier module adopts BPLC technology, which can fully guarantee the real-time, efficient, safe and stable transmission of data, and effectively monitor and control the electrical equipment, instruments and The sensor provides stable data transmission hardware, which improves the level of factory monitoring and management. At the same time, in order to overcome the characteristics of high noise, high time variation and high attenuation on the power line channel in the harsh industrial power environment, OFDM modulation is used to optimize the carrier Transceiver circuit, improve its working performance. The invention has the advantages of simple method, convenient maintenance, plug and play, low cost and good use effect.

The invention relates to an NB-IOT intelligent water meter system, whichuses a 4G network technology of NB-IOT to achieve large connection and deep coverage of data, simultaneous uploading of tens ofthousands of water meters in an area can be achieved and the data can be quickly and accurately analyzed and updated, and the data is stably and safely transmitted in a hard well cover 1 meter underground and an underground official net. A technical scheme of low power consumption can greatly reduce the time and labor cost of manual line arrangement and debugging, and the technical scheme of battery power supply is achieved by using the low power consumption technology of NB-IOT, the uploading frequency of the data can be set through a platform so as to meet different periodic requirements ofdifferent clients on data acquisition; under the mode of low power consumption, a power consumption standard of 20UA can be reached, and the requirement that batteries do not need to be replaced for 8-10 years can be achieved under the cycle of data uploading frequency of once a day.

The invention belongs to the technical field of communication, and provides a photoelectric conversion device and a communication system. The device comprises: a signal transmitting module and a signal receiving module; wherein the signal transmitting module comprises: an isolated input end, an encoding unit and an electro-optic conversion unit, the encoding unit encodes optical fiber data received by the isolated input end to obtain encoded data and sends the encoded data to the electro-optic conversion unit, and the electro-optic conversion unit converts the encoded data into an optical fiber data signal for transmission; and the signal receiving module comprises: a photoelectric conversion unit, a decoding unit and an isolated output end, the photoelectric conversion unit converts received optical fiber transmission data into a parallel signal and sends the parallel signal to the decoding unit, and the decoding unit decodes the parallel signal to obtain transmission data and outputsthe transmission data to an external photoelectric hybrid cable through the output end. The photoelectric conversion device provided by the invention has low power consumption and a small size, and realizes safe and fast transmission of signals, and meanwhile, the signal transmitting module and the signal receiving module can be used as transmission links and have a dual optical fiber backup function.

The present invention provides a video detection and analysis system, the video detection and analysis system includes: a hardware device, a software engine and a template database; wherein the hardware device includes a video screen device, an information output device and a network device, and the software engine includes A capture engine, a framing engine, and a comparison and recognition engine; the video screen device performs video presentation; the information output device acquires a video picture presented by the video screen, and outputs the acquired video picture information in the form of an electrical signal; The network device provides a stable network environment to ensure stable transmission of information in the form of electrical signals; the capture engine captures the parameter information of the video image information presented by the video screen; the framing engine presents the video screen The video frame information is split into each frame of image information; the comparison recognition engine obtains the detection analysis result by comparing each frame of image information with the template in the template database.

The present invention relates to the technical field of wireless co-screening, and discloses a wireless co-screening device magnetically connected to a transmitting end and a receiving end, including a wireless co-screening device HUB, and the HUB includes: a receiving end RT, on which a receiving end RT is equipped with NFC near-field communication module I, and a magnet module I is installed on the receiving end RT; also includes: a transmitting end TT, on which an NFC near-field communication module II is mounted on the transmitting end TT, and a magnet is installed on the transmitting end TT Module II; before the data exchange between the transmitting end TT and the receiving end RT, the NFC near field communication module II at the transmitting end begins to send data to the NFC near field communication module I at the receiving end only after the identity of the NFC near field communication module I at the receiving end is proved to be legal. The same screen data on the signal transmitting device STE; the transmitting terminal TT realizes non-fixed contact connection with the receiving terminal RT through magnetic attraction. The invention solves the problem of how to ensure the safe and stable signal transmission of the wireless screen sharing device.

The invention discloses a rice noodle automatic weighing conveyor, which comprises a frame and a rice noodle bundle weighing device fixed on the frame. The bottom of the rice noodle bundle weighing device is connected with a reciprocating rice noodle positioning and output mechanism. The rice noodle bundle weighing device releases the weighed rice noodle bundle to the reciprocating rice noodle positioning output mechanism, and the reciprocating rice noodle positioning output mechanism intermittently receives the rice noodle bundle and transmits the rice noodle bundle. Using the technical solution of the present invention can effectively save manpower and material resources, reduce production costs, and at the same time, can effectively carry out safe and stable transmission of rice noodle bundles, which provides great help for the production of the next process and the schedule of the fully automated rice noodle production line .

The invention discloses a method for accessing a user end to next generation network, the method comprises the following steps: hypothesizing a U interface card into an Ethernet network card, receiving Ethernet frame which is transferred from a TCP / IP protocol layer, step S104, removing Ethernet frame head and exchanging the Ethernet frame head into an IP data packet, and analyzing IP data packettypes, step S106, accessing getaway and receiving data packet from high-grade data link control 2B+D channel, checking the IP data packet, exchanging network address for the IP data packet which is checked, and step S 108, packing the exchanged IP data packet into an Ethernet frame format and sending to soft exchanging core network server. The invention also discloses a system which accesses a user side to a next generation network. The invention achieves the safe and stable transmission of information in different networks under the circumstance without needing to modify any user end application program which is based on TCP / IP communication, which reduces the probability of core switching network service period which is attacked, and lowers complexity of important customer system network building.

The invention provides a sensitive information secure transmission method based on data bridging. The sensitive information secure transmission method comprises the specific steps: S1, a carrier application platform constructing a bridging file; S2, the H5 application obtaining an authentication Token from the carrier application platform through the bridging file; S3, the H5 application carryingthe authentication Token to send a data request to an H5 application server; S4, the H5 application server carrying the authentication Token to initiate a data request to the carrier application platform server; S5, after the carrier application platform server is verified, responding to the request of the H5 application server, generating data, and transmitting the data to the H5 application server; and S6, the H5 application server transmitting the data to the H5 application through encrypted data transmission. According to the sensitive information secure transmission method based on data bridging, transmission of sensitive data is placed at the server, and on the basis of data bridging, symmetric encryption and white list filtering strategies of the server are used, so that data is transmitted more safely and stably.

A communication task adaptive optimization scheduling method supporting dynamic flow control, characterized in that it includes the following steps: a) constructing a communication dispatch center proxy service; b) dividing it into high priority and low priority; c) if it is determined to be high Priority task, go to execution step h), if it is determined as a low priority task, go to execution step d); d) periodically monitor the running status of the adjustable priority queue; e) calculate the low priority Task Execution Control Strength Y ACT ; f) Calculate and dynamically evaluate task execution priority based on task initial priority and service request arrival time Y DP ; g) When it is greater than or equal to the high-priority execution threshold, the low-priority task that has been waiting for a long time is upgraded to high-priority; h) Use the high-priority queue to execute the task. Under the premise of not affecting the normal operation of the terminal, it supports the adaptive optimization and adjustment of the terminal parameter synchronization task, and records and manages the process of terminal parameter synchronization, thereby improving the reliability of terminal operation.

The invention belongs to the technical field of non-contact power supply and signal transmission, particularly, relates to a non-attachment power supply and signal transmission device. The non-attachment power supply and signal transmission device comprises an emission apparatus and a receiving apparatus. The non-attachment power supply and signal transmission device is characterized in that the emission apparatus is composed of an over-voltage protection circuit, an intermediate-frequency pulse generator, a power conversion circuit and a primary coil iron core, which are connected orderly; the receiving apparatus is formed by connection of a secondary coil iron core and a power restoring circuit, and the primary coil iron core and the secondary coil iron core are not interconnected, and are spaced by a certain gap. The non-attachment power supply and signal transmission device has the advantages of simple structure, convenience in use, steady operation, strong environmental suitability, long service life and the like.

The invention belongs to the technical field of fire-fighting emergency communication, and discloses an intelligent fire-fighting helmet for high-rise building fire based on mobile communication. Theintelligent fire-fighting helmet is used for the collection, processing, communication and display of audios and videos, environment information and positioning data information. A scheduling cloud server is in wireless communication with the intelligent fire fighting helmet and is used for processing and analyzing the received data; and a command client is connected with the scheduling cloud server and is used for monitoring fire scene environment information, personnel positioning information and audio and video information. According to the invention, mobile communication is taken as a core, 4G private network communication and NB-IoT wireless communication technologies are fused, and the intelligent fire-fighting helmet fusing broadband and narrowband communication is provided and realized in the field of urban high-rise building fire fighting. The intelligent fire-fighting helmet is used as basic equipment, the scheduling cloud platform and the command client are constructed, andfire scene communication data link transmission is more stable and safer by using the 4G private network.

The invention discloses an urban noise map generation system. The system comprises an acquisition module, a mounting box body, a conversion module, a network module, an encryption module, a mounting pipe, a first mounting block, a second mounting block, a fastening bolt, a fixed box, a square block, a connecting plate, a first rotating block, a screw, an extension box, a connecting rod, a first arc-shaped plate, a limiting block, a second arc-shaped plate, a stop block, a sliding block, a fixed column, a first spring, a second rotating block, a connecting column, a limiting rod, a connecting block, a moving block, a baffle ring, a fixing sleeve, a limiting column and a second spring. The acquisition module and the network module are respectively mounted on two sides of the center of the top end in the mounting box body, and the conversion module and the encryption module are installed on the two sides of the center of the bottom end of the interior of the mounting box body correspondingly, and the conversion module is located under the acquisition module module. According to the urban noise map generation system, fixation of fixed objects with different thicknesses is facilitated,so that the application range of the urban noise map generation system is expanded, traditional mounting steps are simplified, and the mounting efficiency is improved.

The invention discloses a random data encryption and decryption method, device and system. When the method is used, the original file data is encrypted twice from the encryption party, and the key random position S and The key of AES public key encryption is hidden in the primary encrypted data, and finally the random position S and the AES key are hidden using the server as a relay. The length of the random position and the length of the AES key are both fixed lengths. The receiver intercepts the key and random position through a fixed length. The AES key is decrypted by the RSA private key to obtain the real plaintext AES key, and then the random position is also fixed. The position of the encrypted data in the data can be obtained through the random position, and then passed The AES algorithm converts the string at a random position into the original data decrypted by the AES key. This file transfer process is more secure and stable than the existing ones. When the message packet is intercepted and cracked, the real original file data cannot be obtained directly.

The invention discloses a method, a device and a computer-readable storage medium for controlling gateway equipment. Wherein, the method includes: obtaining the data packet intercepted by the gateway device, wherein the data packet is sent by the cloud server to the terminal device, and performing security detection on the data packet to obtain the target detection result, so as to control the gateway device and the cloud terminal according to the target detection result. Network connection between servers. The invention solves the technical problem that the existing gateway equipment has poor security during data transmission.