This invention discloses a method and a system for positioning switching between the indoor and the outdoor, a terminal and a positioning application platform, which relate to the mobile Internet field. The method comprises steps of collecting quantity of GPS visible satellites and RSSI of WIFI accessing points, reporting the GPS visible satellite quantity and RSSI of WIFI accessing points to a positioning application platform in order to provide convenience to the positioning application platform to determine what environment the terminal is positioned (outdoor environment, indoor environment and shielding environment) by combining the report information, choosing the corresponding positioning mode according to the environment where the terminal is positioned, and starting positioning by the terminal according to the positioning mode chosen by the positioning application platform. This invention realizes seamless switching between the indoor positioning and the outdoor positioning and improves the positioning success rate when the indoor environment or the outdoor environment changes.

Method and system for positioning switching between indoor and outdoor, terminal and positioning application platform

The invention discloses a mobile terminal and an indoor and outdoor positioning switching method thereof, and relates to the field of positioning. The method comprises the following steps of acquiring the access point information of a WiFi (wireless fidelity) coverage signal in an indoor position area and an outdoor position area in an indoor and outdoor switching area in advance, establishing a WiFi fingerprint database, matching the access point information currently received by the mobile terminal and the pre-established WiFi fingerprint database, and determining a first switching probability according to a matching result; measuring satellite information in the indoor position area and the outdoor position area in the indoor and outdoor switching area in advance, establishing a satellite navigation database, matching the satellite information currently received by the mobile terminal and the pre-established satellite navigation database, and determining a second switching probability according to a matching result; generating a comprehensive switching probability according to the first switching probability and the second switching probability, and automatically implementing an indoor and outdoor positioning switching decision according to the comprehensive switching probability.

Mobile terminal and indoor and outdoor positioning switching method thereof

The invention relates to a three-in-one multifunctional intelligent card which is of a modular structure. The three-in-one multifunctional intelligent card is characterized in that the intelligent card comprises a card body, a battery, a GPS module, a controller, an rfid chip, a wireless communication module, an acceleration sensor and a gyroscope. The battery, the GPS module, the controller, the rfid chip, the wireless communication module, the acceleration sensor and the gyroscope are arranged in the card body. The GPS module, the rfid chip, the wireless communication module, the acceleration sensor and the gyroscope are connected with the controller. The GPS module is used for outdoor locating. The rfid chip is used for indoor locating and providing near-field coupling radio frequency to achieve mess hall, entrance guard and attendance checking functions. The wireless communication module is used for communication with a management system and auxiliary locating. The acceleration sensor and the gyroscope are used for judging a carrier posture and a motion state. Compared with the prior art, the three-in-one multifunctional intelligent card has the advantages that functions are various, intelligence and energy saving are saved, carrying is convenient, and environment is protected.

Three-in-one multifunctional intelligent card

The invention provides an indoor and outdoor hybrid positioning method, which comprises the steps of: setting wireless hotspots at an outdoor preset position, and acquiring outdoor absolute coordinate information of the preset position through a GNSS static measurement tool; detecting whether a mobile terminal enters a radiating range of the wireless hotspots; if so, judging whether the number of current GNSS available satellites acquired by the mobile terminal is less than a preset value; and if so, setting a final outdoor coordinate value of the mobile terminal as an initial value, utilizing the GNSS available satellites and the wireless hotspots for hybrid positioning, and being capable of obtaining an effective positioning result under the condition that the sum of numbers of the wireless hotspots and the available satellites is greater than or equal to 4 The indoor and outdoor hybrid positioning method can solve the problem that GNSS positioning is unstable since satellite signals are blocked by crowded tall buildings in city and the satellite signals received by subordinate users under many tall buildings are weak, and improves user experience The invention further provides an indoor and outdoor hybrid positioning system

Indoor and outdoor hybrid positioning method and system

The invention provides a method for fast switching indoor and outdoor positioning. The method adopts a first application program for outdoor positioning and a second application program for indoor positioning. The method comprises steps of: setting a first wireless hot spot at a first outdoor preset position and setting a second wireless hot spot at a second outdoor preset position; detecting if a mobile terminal enters a radiant range of the first and second wireless hot spots; if the mobile terminal enters, obtaining present outdoor coordinate information of the mobile terminal via the first application program; obtaining indoor coordinate information of the mobile terminal via distance information of the first wireless hot spot, the second wireless hot spot, and the mobile terminal; and converting the outdoor coordinate information into indoor coordinate information, and switching the first application program to the second application program for positioning. According to the invention, the problem that switching the application programs for indoor and outdoor positioning needs a long time for buffering and needs several times of manual operation is solved. A user can buffer an indoor map in advance for positioning and guide shopping, so that the user's experience is improved.

Method and system for fast switching indoor and outdoor positioning

Seamless switching method between indoor wireless location and outdoor wireless location based on cost function

The invention discloses a positioning method for indoor and outdoor environment seamless switching realized by global navigation satellite system (GNSS)-based fingerprint positioning technique, relates to the technical field of satellite positioning and navigation, and solves the problem that for the positioning service under the indoor and outdoor environments, seamless positioning switching is difficult to realize under indoor and outdoor environments because a user needs receivers in indoor and outdoor systems at the same time By the positioning method, N GNSS fingerprint positioning nodes are introduced indoors; information frames of the GNSS fingerprint positioning nodes consist of positioning information frames and information frames for location based service (LBS); during positioning, when the positioning is realized by an outdoor positioning way, if the number of visible satellites which participate in the positioning is less than 4, the positioning is switched to an indoor fingerprint positioning way; and when the positioning is realized by the indoor fingerprint positioning way, if that the user leaves the indoor environment is judged, the positioning is carried out in the outdoor positioning way The positioning method is suitable to be used in the field of the satellite positioning and navigation

Positioning method for indoor and outdoor environment seamless switching realized by global navigation satellite system (GNSS)-based fingerprint positioning technique

Meng Weixiao

Papers

Seamless switching method between indoor wireless location and outdoor wireless location based on cost function

Positioning method for indoor and outdoor environment seamless switching realized by global navigation satellite system (GNSS)-based fingerprint positioning technique

Obtaining method of optimal generation polynomial in type-II hybrid automatic repeat request (HARQ) system and repeat system adopting method