30results about How to "Does not affect transfer speed" patented technology

The invention provides a data transmission method and a data transmission device of a virtual network interface card. The method comprises the steps of acquiring a first IP address distributed to a target virtual network interface card by a gateway; detecting that whether the first IP address is in a same network segment with the IP address of a preset network interface card; when the first IP address is in the same network segment with the IP address of the preset network interface card, configuring a second IP address not in the same network segment with the IP address of the preset network interface card for the target virtual network interface card; and transmitting messages via the target virtual network interface card configured with the second IP address. According to the method, when the first IP address configured to the target virtual network interface card by the gateway is in the same network segment with the IP addresses of the other network interface cards, the second IP address in another different network segment is configured for the target virtual network interface card, so that the IP address conflict problem is avoided, the user information security can be ensured, and the information transmission reliability is improved.

The invention relates to an image detection and identification device for a safety production line. According to the technical scheme, the image detection and identification device comprises a conveying device, a power track, an auxiliary track, an image identification frame, an image processing and sending device, an image motion acquisition frame, a camera motion table and a conveyor belt motor.According to the image detection and identification device, multi-angle fixed-point snapshot is carried out through the image identification frame, image acquisition of all parts of a product is completed, image detection and identification are carried out, then the product with a problem is tracked and shot through a tracking camera on the camera motion table according to the first detection condition, so that the camera and the product are relatively static, clearer and more stable image information can be obtained, and further detection and analysis of the product are facilitated. By adopting a double image detection and analysis and following shooting mode, the accuracy of image detection and identification can be improved, and the conveying speed of the product is not influenced in the whole detection process, so that the production efficiency of the production line is guaranteed.

The invention provides an automatic rivet penetrating device compatible with a 1-pole circuit breaker, a 2-pole circuit breaker, a 3-pole circuit breaker and a 4-pole circuit breaker. The automatic rivet penetrating device comprises a conveyor belt, a feeding mechanism, a working tabletop mechanism, a rivet penetrating guide mechanism, a rivet falling mechanism, a rivet pressing mechanism, a discharging mechanism and a rack. The conveyor belt is used for conveying a workpiece into which a rivet is about to penetrate. The feeding mechanism is arranged on the side face of the conveyor belt. The rivet penetrating guide mechanism, the rivet falling mechanism and the rivet pressing mechanism cooperatively work and conduct automatic rivet penetration, and automatic discharge is conducted through the discharging mechanism. The rivet penetrating guide mechanism, the rivet falling mechanism and the rivet pressing mechanism are each provided with a type changing motor assembly, the type changing motor assemblies can adapt to rivets of different lengths through lead screws and motors, and then the automatic rivet penetrating device is universal for the 1-pole circuit breaker, the 2-pole circuit breaker, the 3-pole circuit breaker and the 4-pole circuit breaker. In the type changing process, the type changing motor assemblies can automatically adjust the height of the rivet penetrating guide mechanism, the rivet falling mechanism and the rivet pressing mechanism, the automatic rivet penetrating device is universal for the 1-pole circuit breaker, the 2-pole circuit breaker, the 3-pole circuit breaker and the 4-pole circuit breaker, the conveying speed is not affected, the problems that an existing device is poor in compatibility, low in efficiency and the like are effectively solved, and production efficiency is greatly improved.

The invention relates to an intelligent control system for a solar streetlamp. The intelligent control system comprises solar streetlamp controllers, a ZigBee coordinator, a mobile communication base station, and a solar streetlamp management platform, wherein the solar streetlamp controllers are mounted on the solar streetlamp, and are used for collecting control information of the solar streetlamp and sending control command to the solar streetlamp; the ZigBee coordinator is connected with the solar streetlamp controllers and is connected with the solar streetlamp controllers through a ZigBee network for performing control information interaction with the solar streetlamp controllers in a unified mode; the mobile communication base station is connected with the ZigBee coordinator for realizing format conversion between data information under the ZigBee network and data information under IPv6 network as well as transmission of control information; and the solar streetlamp management platform is connected with the mobile communication base station for realizing monitoring and remote control on the solar streetlamp through the mobile communication base station. Compared with the prior art, the intelligent control system has the advantages of being strong in integration control performance, capable of being remotely controlled and strong in self-adaptive regulation performance.

The invention discloses a serial and parallel communication interface extender. The extender comprises a USB primary port and a USB secondary port, wherein the USB primary port is used for connectinga circuit structure in the extender; the USB secondary port is electrically connected with the USB primary port and is used for connecting a computer side; and the circuit structure in the extender comprises a main control chip which is electrically connected with the USB primary port, a USB serial interface conversion chip and a USB parallel interface conversion chip, which are electrically connected with the main control chip, a serial communication extension port which is electrically connected with the USB serial interface conversion chip and a parallel communication extension port which is electrically connected with the USB parallel interface conversion chip. Compared with the prior art, the extender is simple in structure and small in volume, integrates a function of extending serial communication interfaces and a function of extending parallel communication interfaces, and is capable of converting serial or parallel equipment into plug-and-play USB equipment and satisfying theusing demands of the majority of users.

The invention provides a technical scheme of a device for data transmission encryption. The device comprises a microprocessor and an interface circuit which is connected with a host device, wherein the interface circuit is connected with a protocol analysis module, a first input caching module and a first output caching module are arranged for the protocol analysis module and a paper piece of the microprocessor, the microprocessor is also connected with a FLASH memory module and an encryption and decryption module, a second input caching module and a second output caching module are arranged for the protocol analysis module and the paper piece of the encryption and decryption module, and the microprocessor is connected with the encryption and decryption module. The device of the scheme is additionally arranged on a transmission medium, the data can be encrypted during the transmission process without additional memory equipment; and moreover, the encryption speed of the scheme is high, the transmission speed of the data cannot be influenced, the data which reaches a local end is a ciphertext, and the transmission data can only be read out through the decryption of the device of the scheme, so that the data safety during the whole transmission process is ensured.

The invention discloses a preparation method for a high-strength cable. The method includes the following steps that: 1) nano semimetal bismuth is bunched so as to be adopted as conductor cores with the core diameter ranging from 60 to 80 nm, each of the conductor cores is coated with an insulated high-strength cable material, so that high-strength insulated wire cores are formed; 2) 3 to 5 wire cores which have been treated in the step (1) are wound around a PV-filled liner core, one-time cabling and stranding are performed, so that a composite wire core can be obtained, a plurality of composite wire cores are arranged side by side, and corresponding force-bearing components are arranged, three-layer co-extrusion cross-linking is performed, two ends of a cross-linked cable are connected with a power source, so that a closed loop can be formed, and the cable is energized for a period of time; and 3) copper tape shielding, cabling armoring and outer sheath sleeving are performed on thecable treated in the step 2). The high-strength cable prepared by the preparation method has moderate softness; after the cable is used repeatedly, transmission speed is not affected; and the aging speed of the cable can be effectively slowed down. The preparation method of the present invention is particularly suitable for communication cables.

The invention belongs to the technical field of networks, and discloses a WiFi cloud storage comprising an MT7621A master control core of which the inner core is a 880Mhz dual-core constructed by MIPS and a power supply input circuit, wherein the power supply input circuit is DC12V and is connected with a voltage stabilizing circuit a and a voltage stabilizing circuit b; the voltage stabilizing circuit a outputs 5V voltage to power a voltage stabilizing circuit c, a voltage stabilizing circuit d and USB respectively; the voltage stabilizing circuit c outputs 1.0V voltage to provide 1.0V power supply to the MT7621A master control core; and the voltage stabilizing circuit d outputs 1.1V voltage to provide 1.1V power supply to the MT7621A master control core. The WiFi cloud storage provided by the invention is a production combining a WiFi router function with a cloud storage function, and a mobile WiFi communication product can directly access data in the WiFi cloud storage product, provided the mobile WiFi communication product is within a WiFi cloud storage signal coverage range, so that a data transmission link is reduced, transmission speed is prevented from being affected by the Internet, and even a fault occurs in the network connected with the WiFi cloud storage, the mobile WiFi communication product still can upload and download the data in the WiFi cloud storage product normally.

The invention discloses a wireless communication encryption and decryption method, a data transmission method and a wireless communication system. The encryption method comprises the steps: carrying out the encryption authentication of a decryption party when the encryption method aims at a transmission request initiated by the decryption party; after the encryption authentication is completed, performing chaotic compression encryption on the to-be-transmitted original data to generate encrypted data; and encoding the encrypted data to obtain transmission data, and sending the transmission data to a decrypting party subjected to encryption authentication. The decryption method comprises the following steps: initiating a transmission request to an encryption party, and performing encryptionauthentication on the encryption party; after the encryption authentication is completed, performing packet loss detection and code screening on the received transmission data to obtain encrypted data; and performing chaotic decompression and decryption on the encrypted data to obtain original data. According to the encryption method, encryption of the transmission data is achieved, decryption ofthe transmission data is achieved through the decryption method, and safe data transmission is achieved between the encryption party and the decryption party.

The invention discloses a water-based alkaline electrolyte solution. The water-based alkaline electrolyte solution comprises the following raw materials by weight: water, a weak alkaline salt and a thickener. The weak alkaline salt is one of potassium acetate, sodium acetate or calcium acetate; and the thickener is one of agar, sodium carboxymethyl cellulose, sodium polyacrylate or polyvinyl alcohol. The invention has the beneficial effects that: according to the water-based alkaline electrolyte solution, the thickener is added into the weak alkaline salt, the weak alkaline salt provides hydroxyl ions for electrochemical reaction, and the added thickener sodium polyacrylate has very viscosity, and can prevent the volatilization of the electrolyte solution in a high temperature and low humidity environment, i.e. the water-based alkaline electrolyte solution is volatile in a high temperature and low humidity environment, and can result in the problems of electrolyte solution concentration increase and crystallization, and affection on the sensor service life. The water-based alkaline electrolyte solution has a moderate viscosity, avoids volatilization and has no influence on the iontransmission speed in circuits.

The invention relates to a method of operating an ad hoc network for wireless transmission of synchronous and asynchronous message data. The network consists of any number of randomly assigned network nodes, each node having a receiving device with an input controller, a switching station and a transmitting device with an output controller. For the logical connection to be transmitted, according to a routing method, a transmission path from the starting node through the intermediate node to the target node is determined. Nodes manage location address information or control information, which are assigned to logical connections and transmitted to preceding nodes of the transmission path. According to the invention, the sending means and the receiving means of adjacent nodes on the transmission path are synchronized by means of periodically transmitted identifiers, the interval of which defines a time frame. The nodes of the transmission path reserve time slots within this time frame for the transmission of data packets of the logical connection to be transmitted synchronously. A start signal is sent at the beginning of the isochronous transmission of the logical connection, followed by the transmission of data packets in the previously determined time slots, and the isochronous transmission is ended with a stop signal. Free time slots in the nodes are filled with asynchronously transmittable data packets which are read from the node's output buffer.