122results about How to "Reduce communication data volume" patented technology

A service searching system for searching a service in a distributed system comprises a wireless server device and a wireless terminal device. The wireless server device is connected to a network and implements a master search service. On the other hand, the wireless terminal device implements a slave search service, and is capable of communicating with the server by wireless and utilizing the master search service. Besides, the wireless terminal device comprises a storage means that caches service objects obtained through the master search service. In addition, in searching the slave search service for a service, the wireless terminal device begins by searching the service objects cached in the storage means. In the case where the service is not detected, the wireless terminal device searches the master search service. The service objects are cached by being related to priority data. Thereby, there is provided a service searching system comprising a wireless terminal device, which is intended to search for a service in a distributed system in which a range of services are distributed in a network, wherein it is possible to cut down a service-searching time and costs, and further, it is possible to cut down communication interruptions by noise etc. in the wireless communication section compared to the conventional one.

In a communication-type navigation system for downloading map data according to the present invention, a reduction in the amount of map information to be transferred, correction of a position measured by a GPS, and delivery of advertisements are effected. In this system, a terminal 5 stores rough map data in advance. Then, when detailed map data is required, it is downloaded from a map data delivery center to the terminal 5. Further, together with the map data, GPS correction information is delivered to the terminal 5 from the map data delivery center 80. Still further, coupon information associated with an advertisement is displayed and an electronic mail on the coupon information is issued, by the map data delivery center.

The invention discloses a video live broadcast method for wearable devices, comprising processing at a sender and processing at a receiver. The sender decreases the spatial resolution of a high-definition video signal four times and then executes standard video encoding so as to greatly reduce the pressure put on a wireless network by the encoding data, and the receiver restores the proper resolution through super-resolution reconstruction. Time-domain motion matching needed for super-resolution reconstruction is speeded up with the help of inherent motion vector information of a video encoder. Moreover, a reconstruction residual error compensation link is introduced into a video codec loop to eliminate distortion between a super-resolution high-definition image and a real high-definition image. The mobile video live broadcast efficiency of wearable devices is improved greatly under the premise of no additional damage to the quality of high-definition videos.

The invention discloses an image target detection method, which is applied to a parallel processing chip of a heterogeneous platform, and comprises the steps of receiving bounding box information of aplurality of target object bounding boxes obtained by performing target identification on an image through a convolutional neural network; storing the bounding box information to a random access memory RAM; executing a local maximum search operation based on a non-maximum suppression algorithm on the read bounding box information in a multi-path parallel manner to obtain a preset number of to-be-output bounding boxes; and transmitting the bounding box information of the bounding box to be output to a central processing unit (CPU) of the heterogeneous platform, so that the CPU outputs an imagetarget detection result. According to the invention, the communication data volume of the parallel processing chip and the CPU in the image target detection process can be reduced, and the image target detection efficiency is improved. The invention further discloses an image target detection system, electronic equipment and a storage medium, which have the above beneficial effects.

The invention discloses a data transmission processing method and system. The method comprises: A, data is compressed at a data transmitting terminal, the size of the compressed data is compared with the size of the original data, if the size of the compressed data is less than that of the original data, the compressed data is sent, otherwise the original data is sent; and B, at a data receiving terminal, the received original data is directly stored, and the received compressed data is decompressed and then stored. The system comprises the data transmitting terminal and the data receiving terminal, wherein the transmitting terminal is used for executing the step A, and the receiving terminal is used for executing the step B. The invention also discloses a light-emitting diode (LED) display system, comprising a display control module, an LED control panel, a memorizer and an LED display screen, wherein the display control module is taken as the data transmitting terminal in the methoddisclosed by the invention, and the LED control panel is taken as the data receiving terminal in the method disclosed by the invention. According to the invention, the transmission speed for displaying data in a low-cost display system and the operational performance can be improved.

Image processing parameters including the sensor pitch, optical low-pass filter, and spectral transmittances of color component filters of an image sensor are transmitted to a photographing lens. After the start of image capturing, it is determined whether to send a transmission request of recovery filters to the photographing lens. To send the transmission request, capturing parameters set for image capturing are sent to the photographing lens. Recovery filters corresponding to the capturing parameters, which is created by the photographing lens based on the image processing parameters, are received from the photographing lens, and stored in a memory.

The apparatus comprises a mainframe, an IC card and a USB card. The mainframe comprises a core integrated circuit for demodulating, de-multiplexing and decoding the digital TV program. The mainframe and the IC card are connected through the hardware interface of the IC card. In the IC card there is a conditionally receiving system, for decoding the authorization data and encryption control word of digital TV, for use in controlling the watching right of user to the specific TV program. In the USB card there is a value added service unit for de-multiplexing, de-scrambling and decoding the digital TV signals. The mainframe is connected to USB card through the hardware interface of the USB card. The IC card and USB card are connected through communication bus in the mainframe.

The invention provides a method and terminal for monitoring a video image of a power system. The monitoring method is applied to a monitoring terminal and comprises the following steps: acquiring video image data of the power system; extracting monitoring data from the video image data; determining whether the power system is abnormal or not according to the monitoring data; and when the power system is abnormal, uploading the monitoring data to a background monitoring center. By adopting the method and terminal for monitoring the video image of the power system provided by the invention, thecommunication data amount, the communication cost and the maintenance cost of the background monitoring center can be reduced.

The invention provides a power transmission line fault positioning method based on a non-contact sensor. The method comprises the following steps of: S1, installing one detection device for detecting travelling wave signals every 10-15 km on a power transmission line; S2, receiving current and voltage signals in the circuit, and transmitting the current and voltage signals to a main control center through a communication module; S3, after the main control center analyzes the received data and discovers a fault traveling wave signal, finding a second fault traveling wave signal in the detection device An connected with the detection device Am corresponding to the fault traveling wave signal, and according to the fault traveling wave signal and the second fault traveling wave signal, calculating the time for a first travelling wave head to respectively arrive at the detection devices Am and An; and S4, calculating the position of a fault point. According to the invention, the power transmission line fault positioning method is high in positioning precision and can be widely applied to a high-voltage power transmission network.

The invention discloses a road information real-time acquisition device and method based on a traffic monitoring video. The device is characterized in that the device comprises a video processor, a network module, a remote server, a data pusher and a data receiver. The video processor reads a video image corresponding to a monitoring device. According to acquired pictures, the grayscale value X of each pixel in each picture is acquired, and is compared with a pre-stored parameter value X-1. A nuclear method is used to assess road congestion extent ci, and ci is uploaded. A remote server carries out real-time analysis to acquire a road congestion extent value C. The data pusher transmits the information of a congested road to the data receiver, and the data receiver outputs the information. According to the invention, the video processor analyzes the real-time image grayscale; the nuclear method is used to assess and upload the congestion extent; the data pusher transmits the information in real time; the receiver carries out real-time broadcasting; a driver can acquire the road information in real time and can timely plan a route; and congestion is reduced.

The invention provides a distributed power supply voltage control method based on a hybrid layered multi-agent system. The method comprises the following steps that: (1) the hybrid layered multi-agent system is constructed; (2) distributed power supply cluster agents obtain voltage maximum and minimum values of each line; (3) a trend model is simplified; and (4) the voltage of a line node is judged, if the voltage of the node is lower than a voltage limit value, boosting is carried out, and if the voltage of the node is higher than the voltage limit value, then voltage reduction is carried out. According to the invention, the task load of a single Agent is reduced, the calculation time is shortened, the algorithm is simplified, the amount of communication data is reduced, and the communication time is shortened; in addition, a communication line is annularly designed, communication lines are added as few as possible, and the reliability of the system is simultaneously improved.

The invention discloses a parameter fitting-based voltage controlling method for active distribution feeders. The method is characterized by including the steps: 1, a master control unit acquires voltage state information of each feeder; 2, if a voltage minimum of each feeder is lower than a lower limit, parameter fitting-based feeder reactive power voltage-regulation or loading shedding operating voltage controlling is performed; 3, a voltage maximum of each feeder is higher than an upper limit, parameter fitting-based feeder reactive power voltage-regulation or parameter fitting-based feeder active power voltage-regulation is performed. The method has the advantages that all calculation tasks are performed in the master control unit, using great storage space is avoided, data communication quantity and communication times are decreased, and communication time and calculation time are shortened.