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716 results about "Mobile phone signal" patented technology

A mobile phone signal (also known as reception and service) is the signal strength (measured in dBm) received by a mobile phone from a cellular network (on the downlink). Depending on various factors, such as proximity to a tower, any obstructions such as buildings or trees, etc. this signal strength will vary. Most mobile devices use a set of bars of increasing height to display the approximate strength of this received signal to the mobile phone user. Traditionally five bars are used. (see five by five)

Method for detecting traffic state based on mobile phone signal data

ActiveCN101510357ALess investmentEffective real-time traffic informationDetection of traffic movementData acquisitionTime signal
The invention provides a method for detecting traffic state based on mobile phone signals. A virtual sensor network is set up to acquire the real-time signal data sent from all mobile phones within a time interval from a mobile phone network at a fixed time interval, a virtual sensor section and the traveling speed vi can be obtained according to the real-time signal data sent from an i-th mobile phone; the virtual sensor section is superposed onto a road network to obtain the road network section and the traveling speed Vi of the i-th mobile phone; a real-time traffic flow intensity K and a section traffic flow Q can be obtained by collecting the number n of the mobile phones on each road network section and the traveling speed V of each road network section; and finally, through a traffic parameter prediction model, the predicted traffic flow speed V, the traffic flow intensity K and the section traffic flow Q can be obtained. The method has the advantages that the large range of real-time traffic data acquisition in the city can be completed in a short time by fully relying on the existing mobile communication network resources, and utilizing the information in the existing mobile phone communication network, meanwhile, the initial investment is relatively small, the data coverage is wide, and data accuracy is high.
Owner:SHANGHAI MEIHUI SOFTWARE

Mobile phone signaling trip chain-based OD matrix acquisition method

The invention relates to a mobile phone information processing method, in particular to a mobile phone signaling trip chain-based OD matrix acquisition method. The method includes the following steps that: mobile phone signaling trip chain data of a specified date are acquired according to sampling requirements; an origin point (O point) and a destination point (D point) of a trip are determined according to the mobile phone signaling trip chain data; a sample is expanded according to a sampling coefficient; coarse granularity information OD matrix data are obtained; mode divisional OD matrix data are obtained; a multiple-trip OD matrix data are obtained; and a trip occurrence attraction histogram and a corresponding OD expectation graph are outputted. According to the mobile phone signaling trip chain-based OD matrix acquisition method of the invention, the trip chain data which are depicted by mobile phone signaling information and are simple in acquisition mode, low in acquisition cost, large in sample information and flexible in sampling time are utilized to construct a coarse granularity information OD matrix, a trip mode divisional OD matrix and a multi-destination and multi-trip OD matrix. The mobile phone signaling trip chain-based OD matrix acquisition method has the advantages of high real-time performance and high precision.
Owner:SOUTHWEST JIAOTONG UNIV

Method for collecting abnormal data of TD-SCDMA (Time Division-Synchronization Code Division Multiple Access) wireless communication network user terminal

The invention discloses a method for collecting abnormal data of a TD-SCDMA (Time Division-Synchronization Code Division Multiple Access) wireless communication network user terminal. The method comprises the following steps: firstly, collecting key information of a wireless communication network at real time when a wireless communication network service is used by a user, thereby generating a data log file; comparing the collected network information with a built-in database so as to judge the network state; if the fact that the network is abnormal is detected, judging a reason and writing an abnormal reason and abnormal mobile phone signaling information into the data log file; automatically giving an uploading prompt and automatically uploading the log data onto an appointed back-stage management platform after being agreed by the user; and lastly managing and automatically analyzing the log data in the back-stage management platform. The method can be used for finding out abnormal phenomenon in daily service process based on a commercial terminal, more approaching to network use perception of an ordinary user, efficiently ensuring the consistency of user action and testing result as well as user perception, and more comprehensively estimating the property and the service quality of the whole network.
Owner:DINGLI COMM

Highway human-vehicle correlation system and method

The invention discloses a highway human-vehicle correlation system comprising a camera, a mobile phone signal probe and a processor. The camera is used for acquiring the vehicle image information on the highway. The mobile phone signal probe is used for acquiring the mobile phone IMEI/IMSI information of the passenger on the highway. The processor is used for judging whether the vehicle and the passenger are in the same position at the same moment according to the vehicle driving tracks and the passenger movement tracks and whether the speed is identical in the same position; and if the vehicle and the passenger are in the same position at the same moment and identical in speed, the passenger is judged to be on the vehicle, one or multiple passengers of the same speed and the same positionare correlated with the vehicle and passenger judgment of the vehicle can be realized. The highway human-vehicle correlation system is used for realizing simultaneous supervision of the vehicle and the passenger, and the vehicle and the passenger are correlated so that the highway management personnel are enabled to be clear about the operation situation of the vehicle and understand the carryingsituation of the vehicle and the movement situation of the passenger, the working efficiency of the highway management personnel can be enhanced, and the system can be widely applied to the field ofpeople and traffic management and control and monitoring of the traffic accident.
Owner:CHONGQING JIAOTONG UNIVERSITY

Preprocessing method of mobile phone signaling trajectory based on clustering outlier analysis

InactiveCN107277765AReasonable multi-level preprocessingReasonable and effective multi-level preprocessingLocation information based serviceOutlierComputer science
The invention discloses a preprocessing method of a mobile phone signaling trajectory based on clustering outlier analysis, which reasonably and effectively cleans and denoises base station location data to remove abnormal data, so as to acquire relatively accurate trajectory data on the premise of ensuring original motion characteristics of the data. The method comprises the following steps: on the basis of removing a time repeated sampling value and an invalid sampling value of the trajectory data, performing sub-trajectory segmentation by recognizing the abnormal sampling interval; using an outlier detection algorithm to detect outliers, and dealing with larger system noises; and using Kalman filtering to deal with inherent noises, so that the trajectory data which can perform subsequent mining processing can be obtained. Compared with the prior art, the preprocessing method of the mobile phone signaling trajectory provided by the invention has the following beneficial effects: reasonable and effective multi-level pretreatment, cleaning, denoising and anomalies removal are performed on the base station location data, so that relatively accurate trajectory data can be obtained on the premise of ensuring the original motion characteristics of the data.
Owner:SOUTHWEST JIAOTONG UNIV

Method for calculating highway section average speed based on mobile phone signaling data

The present invention provides a method for calculating a highway section average speed based on mobile phone signaling data. The method comprises a step of obtaining base station information and the GIS information of a target highway, and converting information into a coordinate, (2) gridding on a highway, and establishing the mapping relation between a base station and the highway, (3) carrying out section dividing according to the border cell corresponding projection point of a position area, (4) obtaining the mobile phone signaling data in several continuous time periods T, and constructing a user mobile trajectory, (5) carrying out road matching by using the similarity, motion direction and speed of a base station sequence in the user trajectory, and thus identifying a highway vehicle-borne mobile phone user, and (6) according to the highway vehicle-borne mobile phone user identified by the step (5) and the mapping table of the base station and a mapping point established in the step (2), calculating the travel speed vp of each vehicle-borne mobile phone in a road section i, and then calculating the average travel speed vi in the road section i. According to the method, the existing mobile network information is fully utilized so as to improve the accuracy of speed calculation, and a data support is provided for the low-cost, all-weather, large-range and real-time traffic state monitoring of the highway.
Owner:CHONGQING UNIV OF POSTS & TELECOMM

Path recognition method and system based on mobile phone signaling data

The invention is applied to the rail traffic field, and provides a path recognition method based on mobile phone signaling data. The path recognition method comprises the steps that the mobile phone signaling data of a passenger is mapped to a geographic information database, and path information of traveling of the passenger is acquired; information recognition is conducted according to the pathinformation to obtain path recognition information including an inbound station, a transfer station and an outbound station of the passenger; the path recognition information and time information in the mobile phone signaling data are matched with a train running schedule to obtain a riding scheme set of the passenger; and the riding scheme set of the passenger is matched with the mobile phone signaling data to obtain traveling train number information of the passenger. According to the path recognition method based on the mobile phone signaling data, the traveling time and the traveling trainnumber information of the passenger are matched by combining the mobile phone signaling data of the passenger with the train running schedule, base station information and the like, and the defect that in the prior art, the space-time path information of traveling of the passenger cannot be acquired is overcome.
Owner:SHENZHEN TECH UNIV

Device and method for shielding mobile phone signal by time division synchronous control

The invention provides a device and method for shielding a mobile phone signal by time division synchronous control. The shielding device comprises a synchronous signal receiving antenna, a time division synchronous detection unit, a time division synchronous control unit and a shielding signal generation circuit which are sequentially connected, wherein the time division synchronous detection unit acquires a carrier with a synchronous signal after processing a space time division signal and acquires a downlink signal emission time period and an uplink signal receiving time period of a mobile communication base station according to the synchronous signal; in the downlink signal emission time period, the time division synchronous control unit switches on the shielding signal generation circuit; and in the uplink signal receiving time period, the time division synchronous control unit switches off the shielding signal generation circuit. The shielding device can accurately detect the downlink signal emission time period and the uplink signal receiving time period of the mobile communication base station; in the downlink signal emission time period, the device for shielding the mobile phone signal is switched on to interfere with a downlink signal; and in the uplink signal emission time period, the device for shielding the mobile phone signal is switched off to avoid the interference with the base station.
Owner:GUANGZHOU HANYUN INFORMATION TECH

OD calibration method by use of mobile phone signaling big data and dynamic traffic distribution

The invention relates to resident travel OD matrix calibration method by use of mobile phone signaling big data and dynamic traffic distribution. The method comprises the following major steps: a city road simulation network model is constructed, simulation parameters of each road in a constructed city road network are calibrated by use of microwave and bayonet data, a real traffic flow in an actual road network is obtained by use of a microwave detector, a traffic flow of an initial OD matrix is obtained by use of mobile phone signaling data, through a dynamic traffic distribution method, an initial traffic flow is dynamically adjusted so as to be enabled to be close to the real traffic flow in the road network, an error between a simulation estimation traffic flow and the real traffic flow is calculated, if the error satisfies a threshold, calibration ends, and otherwise, dynamic distribution based on simulation is continuously carried out until the calibration ends. According to the invention, a dynamic OD matrix of resident travel is calibrated by use of the mobile phone signaling big data, and the method has the advantages of stable and objective data information sources, large sample size, wide coverage scope, high data precision, high dynamic performance and the like.
Owner:ZHEJIANG UNIV

Railway transportation junction population type identification method based on mobile phone signaling data

The invention provides a railway transportation junction population type identification method based on mobile phone signaling data. The method comprises the steps of aiming at the specific city hubs,such as the high-speed railway stations, the railway stations, etc., based on the relationship between the geographic information of a hub station and the service range of an operator base station, obtaining a target hub base station, utilizing the space-time information of the mobile phone signaling data to obtain a user travel track occupying the hub base station; according to the different characteristics of various populations in time and air, and by a logic relationship between each stay point in a travel track chain and the hub base station, identifying and judging the types of different populations, so that the qualitative and quantitative basis is provided for the further analysis and planning of the hub transportation, at the same time, by utilizing the characteristics of large sample size, wide coverage, mature and stable acquisition mode, lower cost and the like of the mobile phone big data, the result accuracy is improved, meanwhile, the process cost is reduced, and the research efficiency is improved.
Owner:NANJING RUIQI INTELLIGENT TRANSPORTATION TECH IND RES INST CO LTD

Congestion early warning method for expressway bottle-neck road segment

The invention discloses a congestion early warning method for an expressway bottle-neck road segment. The congestion early warning method comprises the following steps that data of all toll stations,flow data of vehicles which enter and leave from the stations and mobile phone signaling data of all users who enter the stations in a selected area are collected; OD matrix models of the toll stations and the road resistance coefficients of all paths in all OD pairs are established, and the optimal paths of all the OD pairs are determined; according to the collected mobile phone signaling data, the vehicle speed is evaluated, and the required time when the vehicles run to the bottle-neck road segment is calculated; the flow of the vehicles which reach the bottle-neck road segment in a specific time period is counted, and if the flow of the vehicles exceeds a traffic flow threshold valve of the bottle-neck road segment, congestion early warning is conducted. The congestion early warning method for the expressway bottle-neck road segment has the advantages that the mobile phone signaling data is used for evaluating the vehicle speed and the flow data of entrances of the toll stations, the flow of the vehicles which pass through the bottle-neck road segment in a certain time range is predicted, early warning can be conducted ahead of schedule, and the running efficiency of an expressway can be improved; application of physical detection devices such as ground sensing coils can also be avoided to a certain extent, and the cost is saved.
Owner:SHANGHAI YUNDI INFORMATION TECH

Road network matching method and system

The invention discloses a road network matching method and system. The method comprises the following steps: acquiring a road section mapping relation between a base station and a covered region; acquiring mobile phone signaling data of a user; cleaning the mobile phone signaling data; determining all stay points of the user; determining multiple sections of tracks of the user; carrying out feature extraction on each section of the track of the user; determining the trip mode corresponding to each section of the track by adopting a decision tree algorithm; extracting all tracks in which the trip mode are vehicles, and generating a set of to-be-matched tracks; determining similar historical tracks corresponding to each section of the to-be-matched track in the set of the to-be-matched tracks; carrying out interpolation on the to-be-matched tracks according to the similar historical tracks, so as to obtain an updated set of the to-be-matched tracks; converting base station sequences corresponding to each section of the tracks into a road section sequence; and determining a matching road section sequence according to a hidden Markov model, so as to obtain a road network matching result. According to the method and system, the covering range of the road network matching can be increased, and the road network matching precision can be increased.
Owner:JILIN UNIV
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