53 results about "Transmission index" patented technology

The invention relates to an index test method for WLAN equipment, which comprises the following steps: a radio frequency test loop is formed; a wireless link is established; a network test software is respectively installed on a server and a client side; the control terminal of the network test software is operated at the server and the client side, so as to configure the network test software; test data flow is generated between the response terminals of the software, and the test data flow is transmitted or received through the WLAN equipment; the WLAN equipment can obtain a radio frequencyindex from the radio frequency test equipment when in operation; and a network transmission index of the WLAN is obtained at the control terminal of a local network test software. The invention also relates to a system for realizing the method. The invention has the advantages that: the test method can test other network indexes simultaneously and is applicable for the WLAN equipments widely.

The invention relates to a multi-objective optimization data transmission method based on a mobile node locus. According to the method, movement statistical information of mobile nodes and locus information of a large number of real mobile nodes are used for obtaining auxiliary data and transmitting corresponding data, a transmission problem of data packages is mapped to be the multi-objective Markov decision-making process, the Markov decision-making process is solved, so that objective functions of multiple route indexes are optimized, finally the data packages are transmitted according to the optimal forwarding policy obtained through a solution, and therefore an efficient wireless self-organizing network data transmission method from the mobile nodes to the mobile nodes is achieved, wherein the method is also suitable for data transmission from the mobile nodes to a base station and from the base station to the mobile nodes. According to the multi-objective optimization data transmission method, application modes and fields are wide, multiple data transmission indexes are optimized, so that the delivery rate is increased, the data transmission efficiency is improved, the data transmission error rate and consumed network resources are reduced, and therefore the better communication effect is achieved.

The invention discloses an all media transmission index statistical method and a device. The method comprises the steps of acquiring the all media transmission quantity of each multimedia resource in a preset data list on all network platforms by using a web spider technology according to a preset period based on the preset data list, and computing the all media transmission rate of corresponding multimedia resource on all network platforms based on the all media transmission quantity of each multimedia resource on all network platforms; respectively importing the all media transmission rate of each multimedia resource on a television platform; and performing weighted sum on the all media transmission rate of each multimedia resource on the television platform and the all media transmission rate of each multimedia resource on all network platforms so as to obtain the all media transmission index of each multimedia resource. The method is a dynamic all media transmission index computing method, and puts multidimensional data samples of the television media and the network platform into computing category, thereby better reflecting practical ratings.

The invention discloses test method and system of a mobile terminal. The method comprises the steps of: executing a receiver RX test on a first mobile terminal and executing a transmitter TX test on a second mobile terminal by the test system in a same time slot, wherein the RX test comprises a calibration test of a receiving circuit and a receiving index test; and the TX test comprises a calibration test of a transmission circuit and a transmission index test. By adopting the invention, the utilization efficiency of instruments can be improved, and the test cost can be reduced.

The invention discloses a device and method for realizing output power control of a power amplifier. The device is characterized in that: a peak value detector 1 and a peak value detector 2 respectively detect an output signal power and an input signal power of the power amplifier; the corresponding output and input power detection voltages are output to an AD (Analogue-to-Digital) converter together; the AD converter converts the output and input power detection voltages into the corresponding output and input power values and transmits the corresponding output and input power values to a power control module; and the power control module obtains an input signal power threshold value under the corresponding power grade according to expected powers under various power grades of a power amplifier and the output and input power values, and controls an output power of the power amplifier in the known power amplifier state. The device and the method provided by the invention effectively prevent a transmitter from being in a saturated status or an over-power status, so as to avoid abnormalities, such as transmission index deterioration of a base station, occurrences of over-cover or over-area cover, and the like.

The invention relates to a data transmission method and device. The method includes the steps that MeNB determines the maximum transmission capacity of a transmission index of UE according to the transmission index of the UE; the first proportion allocated to the MeNB and allowed to be used by the MeNB and the second proportion allocated to SeNB and allowed to be used by the SeNB are determined when the maximum transmission capacity of the transmission index of the UE is allocated according to proportions; the MeNB determines the third proportion needed when the MeNB needs to guarantee data transmission according to the second proportion, and sends a signaling to the SeNB to indicate the fourth proportion needed when the SeNB needs to guarantee data transmission; when data transmission needs to be guaranteed, the MeNB/SeNB conducts data scheduling transmission in the third proportion/fourth proportion range of the maximum transmission capacity of the transmission index of the UE. By means of the data transmission method and device, the success rate of sending important signalings and data can be guaranteed, and UE performance and network side performance are improved.

The invention provides an air OTA performance test system for out-of-band useless emission indexes of a wireless device. The system comprises a darkroom, a rotary table, a detected wireless device, asignal detection assembly, a spectrum analyzer and a control device, and the path loss of the darkroom is lower than the difference value between the required value of the out-of-band useless emissionindex of the detected wireless device and the bottom noise value of the spectrum analyzer. According to the invention, the darkroom with a specific path loss value is used as a test site; a single signal detection assembly is used as a probe to be matched with a rotary table capable of rotating horizontally and vertically to carry out near-field test on out-of-band useless emission indexes of tested wireless equipment; according to the invention, the overall offset compensation value of the field path loss and the cable loss on the spectrum analyzer can be effectively ensured to be small enough, so that the bottom noise of the whole test system can be effectively controlled, a stable and good out-of-band useless emission index test result can be obtained, and the index requirements of tested wireless equipment can be met. The test system is small in occupied area and low in cost.

The invention provides a data transmission method and device, electronic equipment and a storage medium, and relates to the technical field of network communication. The data transmission method comprises the steps of receiving a request data packet sent by a service requester; if the request data packet is a non-redundant data packet, forwarding the request data packet to a service provider; receiving a response data packet of the service provider for the request data packet; determining a transmission index of each transmission channel with the service requester, and determining a target transmission channel according to the transmission index of each transmission channel; and sending the response data packet to the service requester through the target transmission channel. According tothe invention, the problem of unreliable single-channel data transmission can be solved, so that the data transmission efficiency is improved.

The invention discloses a double-contact coaxial connector with a switch, which comprises an insulated fixed seat, a conductive shell and a switching mechanism, wherein a movable terminal of the switching mechanism is provided with two movable terminal contact parts which are used for being electrically connected with a static terminal contact part of a fixed terminal; and when a plug pin is inserted into the insulated fixed seat, the two movable terminal contact parts are respectively arranged at two sides of the plug pin or the extension line of the plug pin. Because the movable terminal of the invention is provided with two movable terminal contact parts, when one contact has a fault due to pollution or other reasons, the other contact is still effective, thereby prolonging the service life of the coaxial connector with the switch; moreover, the contact resistance between the movable terminal and the fixed terminal is reduced in multiple, thereby reducing the energy loss of signals transmitted between the movable terminal and the fixed terminal, and improving the radio-frequency transmission index of signal transmission of the coaxial connector with the switch; and in addition, the invention can ensure that the plug pin is accurately positioned.

The invention provides a method for adjusting a video code stream and a video frame loss processing method. The method for adjusting the video code stream is applied to a wireless image transmission system, and comprises the following steps: acquiring a specified transmission index of a current network, the specified transmission index comprising a transmission rate and identification informationrepresenting the change trend of the transmission rate; and determining whether to adjust the current code stream parameter of video coding or not according to the specified transmission index. According to the method, the code stream parameter of video coding can adapt to the change of the transmission rate of the wireless network, and when the transmission rate of the wireless network is reduced, the data volume needing to be transmitted per second of the video can be reduced by reducing the code stream parameter, so that the real-time performance of video data transmission is ensured.

A fiber-optic connector for connecting an optical fiber to other optical assemblies is disclosed. The fiber-optic connector includes a top plate having a window of similar refractive index and transmission index as the material of an optic fiber to be contained within the fiber-optic connector. The fiber-optic connector also includes a ferrule connected to the top plate via multiple spring-loaded screws. The ferrule includes an interface and an insert. The insert is capable of firmly gripping an optical fiber. In order to reduce Fresnel reflection losses of the fiber-optic connector, the window is pre-coated with an anti-reflective surface on the side opposite an optic fiber to be contained within the fiber-optic connector.

The invention discloses a communication protocol credibility verification device which comprises the components of a formalized language description module which is used for describing a requirement specification that satisfies a safety transmission index through a formalized language and obtaining a requirement specification that is described by the formalized language; a formal verification module, used for verifying the requirement specification described by the formal language through a formal verification tool to obtain a verification data set; and a detection module used for performing standard detection according to the verification data set. By means of the device, the formalized verification tool can be used for verifying the requirement specification so as to guarantee the safetyand reliability of data communication of the computing platform system.

The invention discloses an automatic test and performance evaluation platform for a low-orbit satellite Internet of Things communication terminal. Radio frequency and baseband index tests of the low-orbit Internet of Things communication terminal can be automatically completed in batches based on satellite constellation design parameters in a laboratory. The automatic test and performance evaluation platform can design and simulate spatio-temporal characteristic parameters and service data transmission parameters of different user terminals to realize evaluation of communication transmission performance under different service scenes; through analysis and comparison of network transmission indexes under different parameter settings, a user is assisted to formulate an optimal network configuration strategy, and the network transmission utilization rate and reliability of the system are improved.

The invention relates to a data packet retransmission control method and device. The method comprises the following steps: acquiring data packet transmission monitoring data; determining a plurality of transmission index values transmitted by data packet according to the data packet transmission monitoring data, wherein the transmission index values comprise at least two of a network jitter value,data packet round-trip delay and a data packet retransmission receiving ratio; when the at least two transmission index values meet the corresponding congestion judgment conditions, closing the automatic retransmission of the data packet; and when at most one transmission index value meets a corresponding congestion judgment condition, starting automatic retransmission of the data packet. According to the scheme of the invention, the method alleviates the network congestion through reducing the automatic retransmission data, thus improving the data transmission quality.

The invention provides a manual light source transmission testing method, which is characterized by testing transmission index of a manual light source, and adopting typical parameter combination method to test according to test models. Defined manual light source transmission index relative to the field of lighting design can serve as index of a new light source. The manual light source transmission testing method provides reference for designers to access light source performance and choose appropriate light sources. As to the field of light source manufacture, tested transmission index can be applied to development of high-transmission special light sources, and guide experiment data for improving and developing manual light sources are provided.

The embodiment of the invention relates to storage equipment and an energy-saving method thereof. The storage equipment comprises a storage controller and at least two buckled cards, wherein the two buckled cards comprise a main working buckled card and a non-main working buckled card; each buckled card comprises at least two ports, and the ports and at least one host machine establish at least one logical link. The storage controller comprises a monitoring module and a power-off management module, wherein the monitoring module is used for monitoring transmission indexes of the logical links; and the power-off management module is used for controlling the non-main working buckled card in which the ports for establishing the logical links are located to be power-off according to a threshold value of the transmission index of the configured logical link and the transmission index of the logical link monitored by the monitoring module. When the storage equipment is in a non-busy state, the embodiment of the invention reduces the quantity of hardware in a working state under the condition of a certain quantity of the hardware in the whole storage equipment to save the energy consumption in the storage equipment.

The embodiment of the invention relates to the field of communication, in particular to a network monitoring method, electronic equipment and a storage medium. The method comprises the following steps: when abnormal information sent to a network management system when a network node detects that a network transmission index is abnormal is received, determining a suspicious area according to the abnormal information, sending an acquisition instruction comprising an instruction of acquiring the equipment performance index of the network node to the network node in the suspicious area, receiving the equipment performance index returned by the network node in the suspicious area corresponding to the acquisition instruction, and generating an anomaly analysis report according to the equipment performance index; therefore, when the abnormal information is received, the equipment performance index of the network node in the suspicious area can be obtained immediately, and the abnormal analysis report can be generated in time according to the equipment performance index, so that operation and maintenance personnel can determine the fault of the network node in time according to the abnormal analysis report.

Embodiments of the present invention disclose a bit rate reduction processing method for a data file performed at a server, to reduce a download delay of a user. The server receives an upload application request sent by a first client; the server queries for an instant-transmission index according to the upload application request, the instant-transmission index being used to record association information of fileids of a plurality of original data files and fileids of corresponding bit rate reduction data files; the server sends a first instant-transmission hit instruction to a first client if the instant-transmission index is hit, the first instant-transmission hit instruction including a second fileid; the server receives a first download application request sent by a second client; and the server obtains a first bit rate reduction data file according to the second fileid, and sends the first bit rate reduction data file to the second client.

The invention provides an industrial gateway implementation method and device, network equipment and a storage medium, and relates to the technical field of network communication. The industrial gateway implementation method comprises the following steps: acquiring a transmission index of an initial transmission channel, the initial transmission channel being used for transmitting a to-be-transmitted message; when it is detected that the transmission index does not reach the standard, selecting an adaptive transmission channel from a plurality of standby transmission channels based on a preset adaptive model; performing matching adjustment on the message parameters of the message to be transmitted based on the channel characteristics of the adaptive transmission channel; and transmitting the adjusted message to be transmitted based on the adaptive transmission channel. Through the technical scheme of the invention, multi-link backup and automatic link switching of the high-reliability industrial gateway are realized, the probability of problems of interruption, time delay, unstable error rate and the like in network transmission can be reduced, and the reliability and stability of network transmission can be improved.