53results about How to "Wide coverage area" patented technology

The invention discloses WLAN (Wireless Local Area Network) quality monitoring system and method and application, wherein the method comprises the following steps of: issuing a WLAN quality testing task to a monitoring terminal by using an operation maintenance center through a mobile communication network; monitoring the WLAN quality of a local WLAN access point by using the monitoring terminal according to the WLAN quality testing task, and then reporting a monitoring result to the operation maintenance center by using an WLAN; and carrying out statistic and trend analysis to the received WLAN quality monitoring result by using the operation maintenance center to evaluate the network quality of the local WLAN access point of the monitoring terminal. The system overcomes the subjective defect existing in an artificial route measuring method and greatly saves the monitoring cost.

The invention discloses an intelligent quality test management system and method of a WLAN (wireless local area network), wherein the method comprises the following steps that: the test mode of a test terminal is set; a service end judges the test mode, if the test mode is an automatic test mode, the service end issues a network quality test task to the test terminal by virtue of a mobile communication network, and the test terminal monitors the quality of the WLAN at a local WLAN access point according to the test task; if the test mode is a manual test mode, the test terminal carries out monitoring according to the manual operation of a user; and then, the test terminal reports monitored data to the service end by virtue of the WLAN; the service end carries out comprehensive analysis, statistic and analysis on the received monitored data and multi-network optimization data such as the network management platform of an operator, a daily maintenance test and the like, and estimates the network quality; and the network quality is shown multi-dimensionally by virtue of a map, a report form and a graph. According to the invention, the universalization of the test terminal, the real-time transmission of the test result and the intelligent analysis on the test result can be realized.

The invention discloses a home-based care for the aged intelligent service system. Based on a system platform, four service modes of emergency rescue, medical service, life help and active care are constructed on the basis of an elder database, a call center, a community medical center and an emergency call terminal. Relying on an intelligent service system with integration of social service resources, home-based medical care together with elderly care services including emergency rescue, medical service and life help are comprehensively provided for the aged. An informatization and intellectualization virtual nursing home operation mode with "public welfare as the premise, socialization as the basis and marketization as the supplement" is established so that continuous, healthy and rapid development of home-based medical care together with elderly care service industry is promoted.

The invention discloses an automatic monitoring system for a WCDMA network, comprising an operation maintenance center and a monitoring terminal, wherein the operation maintenance center is connected with the monitoring terminal through a WCDMA mobile communication network signal. The invention also discloses an automatic monitoring method for the WCDMA network which comprises the following steps: a, the operation maintenance center transmits a testing task to the monitoring terminal through a mobile communication network; b, the monitoring terminal monitors the current network signal quality according to the testing task and reports monitored network signal quality parameters and a monitored testing result to the operation maintenance center through the WCDMA mobile communication network; and c, the operation maintenance center carries out statistic and trend analysis to evaluate the network signal quality of a position at which the monitoring terminal is located. The invention has continuous network performance evaluation, wide covering area range, no need of personnel evaluation as well as very high practical and generalized value, and greatly saves manpower and material resources.

The invention discloses a light conversion film capable of promoting plant growth and a preparation method thereof, wherein the light conversion film comprises garnet fluorescent powder with the formula of Y(3-x)BaxAl(5-x)SixO12: mCe, nCr, 0 <= x <= 1, m > 0 and n > 0, and a polymer resin or glass with refractive index of 1.4-1.65, wherein the garnet fluorescent powder is uniformly dispersed in the polymer resin or glass. The preparation method comprises the following steps: (1) respectively weighing compound raw materials of yttrium, aluminum, barium, silicon, chromium and cerium according tothe stoichiometric ratio of each chemical composition of an expression, mixing, and grinding to a micron scale; 2) calcining the raw material powder in a reducing atmosphere for 4-5 hours to obtain acalcined product; and 3, grinding the calcined product to a micron order to prepare Ce and Cr-containing fluorescent powder with a garnet structure, mixing the fluorescent powder with polymer resin according to a mass ratio of 1:4-1:1, and preparing the light conversion film according to the existing film preparation process. The fluorescent powder has the advantages that the emission intensity of the fluorescent powder in a red light region is greatly enhanced, the plant light supplementing capability is high, the efficiency is high, and plant growth is promoted.

The invention discloses an estuary suspended sediment concentration real-time measuring method based on sound attenuation. The estuary suspended sediment concentration real-time measuring method basedon the sound attenuation comprises the steps that an underwater sound signal sending end and a receiving end are arranged in an estuary, sound attenuation is calculated, acoustic attenuation disturbance caused by suspended sediment is calculated, and the suspended sediment concentration is iteratively calculated. According to the estuary suspended sediment concentration real-time measuring methodbased on the sound attenuation, covering areas are wide, the expandability is high, obtained parameters are more continuous in space, the detecting instantaneity is good, and the measuring precisionis high. Sound propagation technology is adopted for measuring, and the performance is better and development and application potentiality are more achieved compared with light, electromagnetic wave and other modes.

The invention provides an access interface of WAN network data for an HSDPA mode which uses a 3.5G wireless communication mode, and the wireless net surfing function for as many as 253 users simultaneously can be provided in WiFi mode at the accessing end of a local area network, and the invention also supports 4 standard Ethernet surfing interfaces simultaneously. The beneficial effect of the invention is providing an economical and effective net surfing mode for the users who use fixed access with inconvenience or who often move.

The invention discloses an intelligent wireless-network RSU (road side unit) device, a mobile base station, a monitoring system and a control method. The intelligent wireless-network RSU device comprises a control module, a DSRC transceiving module, a DSRC antenna, an NB-IOT module and an NB-IOT antenna, wherein the NB-IOT module is connected with the control module and used for coding, decoding and amplifying to-be-uploaded data to obtain electric signals corresponding to the to-be-uploaded data; the NB-IOT antenna is used for converting the electric signals into electromagnetic waves and sending the electromagnetic waves to the corresponding NB-IOT mobile base station, so that data of the RSU device can be analyzed and processed on a third-party platform. With implementation of the technical scheme, the data of the RSU device can be uploaded automatically, centralized monitoring can be performed on the RSU device, and maintenance cost of the device is reduced.

The invention discloses a video monitoring system based on satellite communication. The video surveillance system includes an on-site video acquisition unit, a communication satellite, a central station, a network transmission unit and a monitoring terminal which are connected in sequence. According to the invention, by the fusion of satellite communication technology and video monitoring technology, a video monitoring area covers a wide area without geomorphic and geographical restrictions, and a transmission line is stable. Signals will be ended neither in a stationary condition nor in a fast-moving process of a vehicle; and the video monitoring system can keep in contact with the central station through a satellite no matter on a flat highway or at a disaster site of poor road conditions. The video monitoring system based on the satellite communication can go deep into a no man's land, operate in an area with no mobile signal coverage just as in an urban area with strong signals, and be used for transmitting clear on-site video images and voice signals for communication with the central station. The invention can be widely applied to various video monitoring systems.

The embodiment of the invention relates to the technical field of information processing, and discloses a robot path planning method, a device, electronic equipment and a storage medium. The inventiondiscloses a robot path planning method, which comprises the steps of obtaining obstacle information in an environment where a robot is located; connecting every two adjacent obstacle to form a line;obtaining a midpoint of each connecting line; and taking the midpoints of all the connecting lines as path points of the robot, and planning a path for the robot. The number of calculated path pointsduring each path planning of the robot is reduced, and points corresponding to obstacles are removed, so that the robot can plan an effective path more quickly and safely.

The invention discloses a three-meter control device on the basis of a mobile terminal, comprising a user mobile phone (1), an IP host computer (2) and a thee-meter controller (3), wherein, the user mobile phone is taken as the operational terminal of the user and is used for sending the operating instruction to the three-meter controller by the IP host computer and receiving the voice prompt of the IP host computer; the IP host computer is used for receiving the operating instruction of the user mobile phone and sending to the three-meter controller in order to realize the operation on the three-meter controller; the IP host computer receives the instruction and the data as well as the signal sent by the three-meter controller and dials a connection to the user mobile phone as well as informs the user in a voice mode; the three-meter controller is used for controlling the three-meter device to realize the functions of reading meter, remote control and monitoring. The invention also discloses a method for controlling the three meters on the basis of the mobile terminal. The invention has wide range of coverage area and low cost as well as high reliability and functional completeness, and can send the data signal to the user conveniently and in time, thereby effectively performing necessary control to the three meters.

The invention discloses a long-distance low power consumption meteorological monitor which comprises a rainfall detector module, a wind power sensor module, a PM2.5 (particulate matter 2.5) monitoring sensor module, a temperature, humidity and pressure sensor module, a GPS (global position system) module, a Lora node device, a power supply module and a background system, wherein the power supply module comprises a storage battery and a solar panel charging module; the solar panel charging module is used for charging the storage battery. The background system comprises Lora gateway processing modules, a Lora route base station, an interconnection module and a monitoring platform; the solar panel charging module is used for charging the storage battery; each node can operate normally outdoors throughout the year; the battery is not required to be replaced; the background system is provided with the Lora gateway processing modules; the Lora gateway processing modules are communicated with the Lora route base station via an SPI bus technology; the base station is communicated with Internet; the monitoring platform receives information from the Internet; electricity conservation, wider signal coverage area and longer transmission distance are achieved.

The invention discloses a visual servo-based illegal aircraft strike method and a robot, and the method comprises the steps: collecting an inspection image in the automatic cruise process of the robot; judging whether an illegal aircraft exists in the collected inspection image or not; when the illegal aircraft is judged to exist in the continuous multi-frame inspection images, controlling a cradle head to rotate to position and track the illegal aircraft; after the cradle head can stably track the illegal aircraft, starting the striking device to strike the illegal aircraft. The method has an automatic cruise function, and achieves positioning, tracking and striking of illegal aircrafts in the cruise process.

The invention aims to provide an information interaction method based on gesture recognition and Beidou satellites, and solves the problem of effective and comfortable communication among multilingualoperators in the same industry. The technical scheme adopted for achieving the purpose of the invention is as follows: gesture features of an operator are acquired through the image acquisition device; the image information is transmitted to a gesture image recognition server through channels such as a short-wave radio station and an ultra-short-wave radio station; the image information is converted into corresponding phrases after recognition by a recognition algorithm; the identification server sends the word group to Beidou message receiving equipment in an area where a corresponding receiver is located through a Beidou message channel; the Beidou message equipment is accessed to a local area communication network of channels such as short-wave and ultra-short-wave radio stations in the area through a switch interface; and the corresponding phrases are transmitted to the information sensing devices of the corresponding receivers through signaling decoding and are converted into voices or characters to be sensed by the receivers, so that effective and comfortable communication among multilingual operators in the same industry is realized. The method is reliable, and has the advantages of attached positioning and other information, barrier-free communication of people in different languages, low cost and the like.

The invention discloses a TD-LTE (Time Division Long Term Evolution) network quality monitoring system, comprising an operation maintenance center and a monitoring terminal. The operation maintenance center and the monitoring terminal are in signal connection through a TD-LTE mobile communication network. The system performs the following steps that the operation maintenance center issues a test task to a fixed monitoring terminal through the mobile communication network or a mobile monitoring terminal automatically obtains the test task; the monitoring terminal monitors current network signal quality according to the test task and reports monitored network signal quality parameters and test results to the operation maintenance center through the TD-LTE mobile communication network; and the operation maintenance center carries out statistics and trend analysis, thereby evaluating the network signal quality of a location where the monitoring terminal is at.

The invention discloses a distributed network telephone system. The distributed network telephone system comprises a VoIP terminal A and a VoIP terminal B, the VoIP terminal A and VoIP terminal B have talking connection through n servers C, and the concrete steps include that (1) when the VoIP terminal A and VoIP terminal B are started, the servers C1, C2, ...Cn verify the VoIP terminal A and VoIP terminal B; (2) the VoIP terminal sends a VoIP terminal B calling request to the servers C1, C2, ...Cn; (3) the servers C1, C2, ...Cn receive the request of the VoIP terminal A, find the VoIP terminal B and build connection; (4) the VoIP terminal B confirms answering; (5) the VoIP terminals A and B perform voice communication through the transmitting of the servers C1, C2, ...Cn, and each server C loads partial data according to strategy.

The invention provides an embedded invisible circular polarized antenna, aiming at providing the embedded invisible circular polarized antenna with wide wave beam coverage range and coverage area, which can bear high power, receive signals in a plurality of frequency segments, receive and transmit circular polarized electromagnetic wave within wide-angle range and realize wide-angle coverage. Theembedded invisible circular polarized antenna comprises a printed circuit board (1), a cable component (10), a strip line feed network (11), a high-frequency connector (9); the cable component is composed of two feed cables (3) and two balanced current cables (4) arranged on a printed board by a 2*2 rectangular array, wherein the two feed cables are connected with the port (20) and port (21) of a3dB directional coupler (6) in the strip line feed network, an outer conductor of the two balanced current cables is connected with the copper foil on the printed board, and the high-frequency signalcurrent of an outside signal source is fed into the 3dB directional coupler by the high-frequency connector and then is distributed to the cable component, then is fed into the printed board by crossfeed sheets (2) on the feed cables (3).

The invention discloses a cancer gene detection kit based on a second-generation sequencing probe capture method. The cancer gene detection kit comprises quality control materials, library building reagents and an RNA probe; quality control materials: a negative quality control material and a positive quality control material; library building reagents: a tail end repairing and A adding reagent, ajoint adding reagent, an amplification reagent, a hybridization reagent, a capture reagent and an amplification reagent; the RNA probe is a probe panel; the synthesis type of the RNA probe is an RNAsingle strand; the length interval is 90-120 nt; and biotin is marked. The cancer gene detection kit in the invention aims at patients with lung cancer, colorectal cancer, breast cancer and ovarian cancer. Detection of 18 genes panel is carried out; the receptivity of medicines, such as targeting and chemotherapy, on a patient is comprehensively interpreted from the gene level; according to the difference of individual gene levels, an accurate personalized treatment scheme is made; immune medication treatment is guided; the sensitivity and toxic and side effects of chemotherapy drugs are predicted; a medication prognosis condition is dynamically monitored, etc.

The invention discloses a method for extracting water body information through data fusion. The method comprises the following steps: S1, obtaining optical image data and SAR observation image data covering a research area range; s2, preprocessing the optical image data in the step S1; s3, acquiring a surface reflectance value on each pixel based on a preprocessing result in the S2, acquiring a water body index through waveband calculation, and selecting a water body index graph with an optimal extraction effect; s4, preprocessing the SAR observation image data in the step S1 to obtain a backscattering coefficient graph of a ground object; and S5, establishing a relationship between the water body index map determined in the S3 and the backscattering coefficient map obtained in the S4, andperforming data fusion to obtain water body information. The fusion method can scientifically, accurately and quickly obtain the water body information, grasp the space-time change rule of the waterbody, and provide a theoretical basis for effective utilization and reasonable planning of water resources.

The invention discloses a floating vehicle technology-based nuclear radiation monitoring method and system. The method comprises the following steps: vehicle driving data of a floating vehicle is collected via a vehicle-mounted terminal and sent to a data service center; the vehicle driving data comprises position information, time information and a nuclear radiation dosage; the data service center is used for dividing a preset nuclear radiation monitoring area into a plurality of subareas, a subarea corresponding to the vehicle driving data is obtained via matching operation according to the position information in the vehicle driving data, and the vehicle driving data is stored in a regional vehicle driving data set of the corresponding subarea; the vehicle driving data in the regional vehicle driving data set of the subarea is obtained, and regional monitoring data of the subarea can be obtained via analysis operation according to the time information and the nuclear radiation dosage. According to the floating vehicle technology-based nuclear radiation monitoring method and system, floating vehicle technologies are applied to nuclear radiation monitoring operation; the nuclear radiation monitoring method and system are characterized by high reliability, wide coverage area, low cost and the like; monitoring efficiency can be greatly improved.

The invention relates to an electronic lead seal monitoring system based on a public wireless communication network. The electronic lead seal monitoring system based on the public wireless communication network comprises a server, a GSM module, a monitor terminal and an electronic lead seal, and is characterized in that the server is connected with the GSM module through a TTL / USB convertor, the GSM module is connected with the monitor terminal through the public wireless communication network, the monitor terminal is connected with the electronic lead seal through a wireless signal, the electronic lead seal comprises a shell and a circuit board sealed inside the shell, the circuit board is provided with a wireless Bluetooth module, and the shell is provided with a wiring terminal connected with a lead seal line. The electronic lead seal monitoring system has the advantages that cheat in the sell, use and verification links of measuring instruments can be effectively prevented, and remote violation monitoring on electronic lead seal devices of the measuring instruments can be automatically achieved. The electronic lead seal monitoring system adopts the wireless networking mode, and is wide in coverage area, flexible in networking mode and timely and accurate in alarm.

The invention relates to a logistics support vehicle monitoring and commanding system, and belongs to the field of informatization. The system comprises a vehicle-mounted navigation terminal device, amonitoring and commanding terminal and a Beidou satellite navigation system used for providing a communication link for the vehicle-mounted navigation terminal device and the monitoring and commanding terminal. The vehicle-mounted navigation terminal device unit comprises an informatization host, a display control terminal and a Beidou all-in-one machine; a wireless communication module or a satellite communication module is not needed, Beidou short message communication is adopted through an external Beidou device, the coverage area is wide, no communication blind area exists, the confidentiality performance is high, the communication problem of an area without mobile network coverage is solved, and confidential communication is achieved. Monitoring and early warning of vehicle-mounted devices of people, vehicles and logistics support vehicles and lane departure of roads are achieved, the driving safety is improved, and the safety of people and vehicles is guaranteed.

A remote transmission system of combine-harvester effective operation time statistics is disclosed and includes a plug-and-play type sensor, a signal collector, a signal receiver, and a system monitoring software. The sensor sends operation state parameters of a collected object so that the collector can carry out identification calculation and processing of combine-harvester effective operation time; the operation state parameters and other parameters are used to generate a data packet which is send to the receiver through a GSM network; the data packet is transmitted to a system monitoring software through a data line; and the system monitoring software carries out final processing of the data packet. The system of the invention can be used for high precision monitoring of a specific monitoring object, can carry out simultaneous monitoring of multiple combine-harvesters, and also can carry out simultaneous monitoring of combine-harvesters of various types. The system uses a wireless transmission mode, only needs transferring information when the combine-harvester conditions change, so that the low cost is realized. The information collected by the system can play a positive role in standardization of the industry service life and industry average operation time of the combine-harvester, so that the accident is reduced.

The invention discloses a semi-trailer blind area track early warning method and device for an external environment, and relates to the technical field of vehicle driving safety, the semi-trailer blind area track early warning device is provided with four inner wheel difference coverage area mapping point positions of the left side of a tractor body, the left side of a semi-trailer body, the right side of the tractor body and the right side of the semi-trailer body, and each point position is provided with a front straight laser lamp and a rear straight laser lamp. The formed early warning device can greatly increase the turning early warning area, early warning is carried out on the path which is not passed by the semitrailer when the semitrailer turns, the response time of pedestrians or non-motor vehicles is prolonged, and potential safety hazards are greatly reduced. The early warning area of the device is based on real-time calculation of the turning inner wheel difference, and the early warning area is dynamically adjusted along with the vehicle driving state and is more accurate.

The invention discloses a detection method and device for a heading angle of a mobile robot and a computer readable storage medium. The detection method for the heading angle comprises the following steps: detecting process initialization, collecting sensor data, carrying out priori estimation on the heading angle, extracting a set of ground vision heading angle detection values and carrying out posteriori estimation on the heading angle. The detection device of the heading angle comprises a robot yaw rate detection unit, a ground image acquisition unit and a data processing unit. The computerreadable storage medium is used for storing a detection procedure of the heading angle. Compared with the prior art, the mobile robot with the detection device for the heading angle disclosed by theinvention has the advantages of low cost, high accuracy, stable performances, short detection period, wide coverage area, multiple application scenarios, high system reliability, low privacy intrusionand the like. Because no magnetic sensor is involved, the mobile robot can be applied to an environment richer in ferromagnetic interference and electromagnetic interference.

The invention relates to the field of water purification, in particular to an air flotation dephosphorization purification device and a control system.The air flotation dephosphorization purification device comprises a purification pond, an aeration device is arranged on one side outside the purification pond, an aeration pipe of the aeration device penetrates through the purification pond, a plurality of micro air holes are formed in the aeration pipe, and a partition plate with a window is arranged in the purification pond in a crossing mode; the purification pond is divided into an aeration purification area and a settling area by the partition plate; a feeding unit is arranged above the settling area; the feeding unit comprises a screw rod, a feeding table and a feeding cylinder; the lead screws are symmetrically and rotationally connected to platforms on the two sides of an upper end opening of the purification pond and connected to supporting legs of the feeding table, through holes are symmetrically formed in the feeding table, feeding cylinders are erected at the upper hole ends of the through holes, and first discharging holes are formed in the bottoms of the feeding cylinders.

Disclosed is a widely distributed type electric vehicle control method. The control method comprises a widely distributed type electric vehicle cluster of an integrated vehicle-mounted intelligent EV matrix control system in an application layer, multiple regional active type EV matrix distribution and monitoring systems in a service layer, power distribution automatic sub stations which are corresponding to the regional active type EV matrix distribution and monitoring systems for communication and coordination control, a power distribution automatic main station which is used for managing and controlling the regional active type EV matrix distribution and monitoring systems and the power distribution automatic sub stations, and a power distribution dispatching automatic system and a power transmission dispatching automatic system in a platform layer. The system has the distributed calculation characteristic, and supports the plug and play function; the system is based on open and interconnecting, free and equal principles; a charge-discharge requirement can be directly issued or responded between any one point and any other one or more points in the electric vehicle cluster under a normal condition without requiring intervention from the power supply side; when the requirements in the application layer in the system are subjected to an extreme condition, and all the application layer requirements in the region cannot be satisfied mutually, the regional active type EV matrix distribution and monitoring systems participate in the coordination and allocation; and furthermore, coordination, control and dispatching can be applied to the higher power distribution automatic main station, the power distribution dispatching automatic system and the power transmission dispatching automatic system.