43results about How to "No changes involved" patented technology

The invention provides a media forwarding method, a media receiving method, a client, and a system. The media receiving method comprises: receiving a media displaying description, wherein the description includes 3-dimensional description information of a video; choosing to display according to the 3-dimensionaldescription information; sending fragment obtaining request to a server corresponding to the chosen display according to the sectioning information in the media displaying description, wherein the fragment obtaining request is used for obtaining the fragments chosen to display; and receiving the fragments required by the fragment obtaining request. The invention conquers the defect of the prior art, by which the 3-dimensional description information is received after a relatively long while when the receiver starts media receiving.

The invention discloses a mixed-type loading balance method in a data center network. According to the method, a central controller is deployed for obtaining global network information, a terminal host is deployed for fast routing of middle-small streams, and meanwhile a decision-making right for centralized loading balance and a decision-making right for distributed loading balance of the terminal host are given to the central controller; the central controller utilizes the global information to arrange paths for predefined large streams and calculates global optimum network queuing delay forpredefined middle-small streams, and the terminal host conducts distributed path selection for the middle-small streams and carries out rerouting under the limitation of the global optimum network queuing delay. The central controller and the terminal host cooperate with each other separately, and in a network with demands for different flows, high throughput of the large streams and low delay requests for the middle-small streams are ensured at the same time. Compared with a pure intensive or distributed scheme, the method has the advantages that all flows in the network can be taken into account at the same time, the demands for different flows are met, and the method is flexible, convenient and easy to configure.

The invention relates to a block chain hidden information transmission method and system based on dynamic marking. The method comprises the following steps: counting data true probability distributionof an OP_RETURN field of a block chain protocol; generating a dynamic mark according to the negotiated seed and the data real probability distribution of the OP_RETURN field; and enabling the sendernode to fill the dynamic marks into the OP_RETURN fields of the two transactions, performing digital signature by adopting an elliptic curve cryptographic algorithm, and sending the two signed transactions to the block chain; enabling the receiver node to identify the two transactions according to the dynamic marks, performing elliptic curve cryptography algorithm random number leakage attack on digital signatures of the two transactions, calculating used random factors, deducing a private key, namely an encoded encrypted message, decoding the encrypted message and decrypting the encrypted message by using a secret key negotiated with the sender node. According to the invention, the undetectability and tracking resistance of the channel can be realized, the strong robustness is satisfied,and the risk of user privacy exposure is greatly reduced.

The invention discovers and defines a possibly existent problem of an interruptability remapping mechanism under a virtual symmetric multi-processing environment: the interruptability holder preemption (IHP, interruptability holder preemption) problem. The problem causes the failures of the interruptability remapping mechanism, and reduces the I / O performance of a virtual machine. For solving theIHP problem, the invention provides a proactive VCPU integrated scheduling method based on the interruptability holder information. Through the method provided by the invention, a VCPU integrated scheduling method is constructed by globally mastering and analyzing an operation state of the interruptability holder and giving consideration to the global scheduling fairness of the system based on theextensively used KVM (Kernel-Based Virtual Machine) at present and a semi-virtual network model; the IHP problem is effectively eliminated, and the I / O performance of the virtual machine is obviouslyimproved.

The invention discloses an excavator oil consumption display control system, a control method thereof, and an excavator comprising the excavator oil consumption display control system and the control method, and belongs to the field of excavator oil consumption control. The excavator oil consumption display control system comprises a flow sensing device, an analog-digital converting device, a control device and a display device, wherein the flow sensing device is installed at an oil spraying nozzle of a motor and is connected with the analog-digital converting device; the analog-digital converting device is connected with the control device through a CAN (controller area network) bus; and the control device is connected with the display device through a CAN bus. The control method of the excavator oil consumption display control system comprises the steps of displaying instantaneous oil consumption, displaying accumulative oil consumption and displaying loading accumulative oil consumption. The technical scheme has the advantages as follows: only the flow sensing device is additionally arranged in the conventional excavator oil consumption display control system, and a fuel oil pipeline is not improved; signals are transmitted through the CAN buses, so that the anti-jamming capability of the excavator oil consumption display control system is strong; and through calculation of a control device of the excavator, the instantaneous oil consumption, the accumulative oil consumption and the loading accumulative oil consumption can be calculated.

The invention relates to a device of an OLED display field, and in particular relates to a high-contrast OLED (Organic Light Emitting Diode) display device based on a volume holographic principle. Aiming at the problems that the device contrast is reduced in ambient light and the imaging quality is influenced because of the reflection caused by the structure of the OLED device, the invention provides an idea that a light guide layer formed by using the volume holographic principle is combined with the OLED device, and the incident ambient light within a certain angle range is guided to an invisible range, so that the contrast of the device is prevented from being influenced by the ambient light which enters the OLED and generates reflection.

The invention relate to WLAN field, a method for implementing WAPI system-based virtual LAN (VLAN) in WLAN. And it is based on GB15629.11-specified WAPI safe structure, adopts user certificate according with GB15629.11, and on the basis that GB15629.11-specified user certificate possesses unused field and supports user custom, sets mapping relation attribute of mobile terminal (MT) certificate, MAC address of MT, user group ID (UGID) and VLAN ID, and wireless access point (AP) checks and sets the attribute and transfers or discards corresponding data according to the provisions of the attribute, thus implementing a function that WLAN supports VLAN.

The invention discloses an excavator oil consumption display control system, a control method thereof, and an excavator comprising the excavator oil consumption display control system and the control method, and belongs to the field of excavator oil consumption control. The excavator oil consumption display control system comprises a flow sensing device, an analog-digital converting device, a control device and a display device, wherein the flow sensing device is installed at an oil spraying nozzle of a motor and is connected with the analog-digital converting device; the analog-digital converting device is connected with the control device through a CAN (controller area network) bus; and the control device is connected with the display device through a CAN bus. The control method of the excavator oil consumption display control system comprises the steps of displaying instantaneous oil consumption, displaying accumulative oil consumption and displaying loading accumulative oil consumption. The technical scheme has the advantages as follows: only the flow sensing device is additionally arranged in the conventional excavator oil consumption display control system, and a fuel oil pipeline is not improved; signals are transmitted through the CAN buses, so that the anti-jamming capability of the excavator oil consumption display control system is strong; and through calculation of a control device of the excavator, the instantaneous oil consumption, the accumulative oil consumption and the loading accumulative oil consumption can be calculated.

The present invention provides a method, a system and a readable storage medium for the ignition control method, system and readable storage medium applied to an engine. It is characterized in that, the ignition angle offsets when the cylinders are used as the cylinders for the previous several times of ignition are respectively set in advance for the plurality of cylinders, and the ignition angle offsets can advance the ignition angle; the method includes: when starting the When the engine is running, determine whether the engine is in a warm-up starting condition; if so, determine the firing order for starting the plurality of cylinders this time; re-determine the previous firing order according to the firing order and the preset firing angle offset. The ignition angles of the cylinders ignited several times; according to the re-determined ignition angles of the cylinders ignited several times before, the multiple cylinders of the engine are controlled to ignite in sequence according to the ignition sequence. The invention can effectively reduce the vibration of the engine during the starting process.

The invention discloses a multi-optical port communication method, device, device and storage medium, wherein the method includes: pre-configuring the Vlan IDs of several optical ports; The Vlan ID of the interface is used to transmit the data packet to the corresponding application layer. Through the Vlan ID corresponding to the optical port, the data packet can be distinguished from the incoming data packets of other optical ports. Since the frequency bands of the signals transmitted by different optical ports are different, the incoming data packets of different optical ports need to carry out information The interactive application layer will also be different, and the data packet can be transmitted to the application layer corresponding to the optical port for information interaction through the unique Vlan ID; the method provided by the present invention realizes multiple For optical port communication, there is no need to configure or modify any peer or next-level unit / device, and the MAC address of any unit / device is not changed during the entire transmission process of the data packet, avoiding the problem of MAC address conflicts.

The invention relates to a common-port transmission method for SV direct mining and GOOSE messages, and belongs to the technical field of relay protection for intelligent substations in electric power systems. According to the transmission characteristics of SV direct sampling and GOOSE messages, the present invention, on the basis of ensuring the accuracy of SV sending time, time-division multiplexes the transmission channel, and transmits and receives GOOSE messages between two frames of SV messages, and according to The specific project configuration file dynamically calculates the number of GOOSE frames inserted between two frames of SV messages, maximizes the use of the transmission bandwidth of the channel, shortens the transmission delay of GOOSE signals, and utilizes the message receiving mechanism of the Ethernet controller to communicate with the FPGA through the FPGA. The resampling time stamp confusion problem caused by the SV and GOOSE packets that the Ethernet controller cannot recognize. Moreover, the GOOSE transmission delay of the present invention is small, does not involve hardware modification, simple software processing, high reliability, easy implementation, and can be widely popularized.

The invention provides a low-voltage battery power-on control method and device of an electric vehicle and the electric vehicle, and relates to the field of power-on processing of the low-voltage battery of the electric vehicle. The low-voltage battery power-on control method of the electric vehicle includes: obtaining the performance degradation judgment result of the previous power-on cycle of the current power-on cycle of the low-voltage battery and the wake-up times N of the controller in the power-on process of the low-voltage battery i ; According to the performance degradation judgment result and the wake-up times N i , determining the low-voltage power-on mode of the current power-on cycle of the low-voltage battery; acquiring the performance degradation judgment result of the low-voltage battery when the low-voltage battery is powered on according to the low-voltage power-on mode in the current power-on cycle and the wake-up times of the controller . In the embodiment of the present invention, the stability and smoothness of the output voltage during the power-on process of the low-voltage battery are ensured through the detection of the performance degradation of the battery and the wake-up of the controller in stages, thereby ensuring a better driving experience.

The embodiment of the invention discloses a color printing business processing method comprising the steps that color printing business is triggered at the terminal of a calling user or the terminal of a called user, and the terminal of the calling user initiates calling and then acquires the Invite request initiated by a calling side serving-call session control function (S-CSCF) or media gateway control function (MGCF) to the called side S-CSCF; and the home region of the terminal of the calling user is determined based on the initiated Invite request. The embodiment of the invention also discloses a color printing business processing device.

The invention provides a permanent magnet synchronous motor fault detection method, system and automobile, and relates to the field of automobile fault detection. The permanent magnet synchronous motor fault detection method includes: when the rotational speed of the permanent magnet synchronous motor to be detected is zero and the vehicle is in an active discharge process, periodically estimating the first output torque of the permanent magnet synchronous motor according to a preset control cycle ; Carry out band-pass filtering on the first output torque to obtain the second output torque; calculate the torque fluctuation coefficient in the detection period according to the second output torque; judge whether the permanent magnet synchronous motor to be detected is A rotor position zero offset fault exists. The above solution detects the fault of the zero point deviation of the rotor position of the permanent magnet synchronous motor when the vehicle is actively discharging and the motor speed is zero. The detection process will not interfere with the normal driving of the vehicle; Changes to vehicle propulsion system hardware.