The invention provides an indoor and outdoor fusion navigation parking system and method. The system is composed of a central server, a group of parking lot servers and a user mobile terminal arranged on a vehicle. The central server comprises a communication and business processing module. Each parking lot server comprises vehicle positioning, data management and communication modules. The user mobile terminal comprises outdoor navigation, indoor navigation, decision and communication modules. The central server acquires real-time parking place information of each parking lot so as to provide the available parking lot information near the destination for the vehicle; and the vehicle arrives at the selected available parking lot entrance according to the outdoor navigation, switches to the indoor navigation mode, receives the vehicle position transmitted by the parking lot server and a parking lot real-time map including the available parking place information, plans the vehicle driving path to perform navigation and arrives at the parking place. "Navigation" and "parking" are associated so that the efficiency and the convenience of the parking system can be enhanced.

Indoor and outdoor fusion navigation parking system and method

The invention provides a dynamic and intelligent vehicle guidance method for an underground parking lot The method comprises the following steps: 1, a map is built, based on a building map of the underground parking lot, a vertical rod is adopted or a positioning label is mounted at a position site in need of correction, a TOF mode is adopted for multiple times of two-way communication, coordinate positions for inner features are calibrated, and a high-resolution map for the underground parking lot is built; 2, vehicle recognition is carried out, image information of each vehicle entering the parking lot is acquired through a camera, vehicle recognition is carried out, and the vehicle after recognition is bound with a parking sign fused with an ultra-wideband positioning label; 3, real-time vehicle positioning is carried out, an ultra-wideband positioning base station global synchronization server and a time stamp position solution positioning server are set, and real-time parking sign coordinates are calculated; and 4, management and application are carried out, the server of a management center acquires the real-time parking sign coordinates, and through the obtained real-time parking sign coordinates, real-time high-precision positioning, tracking and guidance on vehicles are carried out

Dynamic and intelligent vehicle guidance method for underground parking lot

The invention discloses a positioning method and a positioning system which are used for positioning a to-be-positioned object in an emplacement space The emplacement space includes a plurality of subspaces, and aiming at at least one subspace, a positioning mode suitable for the subspace is determined according to spatial characteristics of the subspace; according to the subspace where the to-be-positioned object stays, the positioning mode corresponding to the subspace is adopted to position the to-be-positioned object The positioning method and the positioning system have the advantages that the to-be-positioned object in the subspace can be positioned by a positioning mode, corresponding to the subspace, from multiple positioning modes, and a positioning effect is better

Positioning method and positioning system

The invention belongs to the field of ultra-wideband communication, and in particular relates to a multi-user ultra-wideband (UWB) indoor positioning system, which can be used for indoor positioning, security rescue and assistant GPS navigation. The multi-user UWB indoor positioning system comprises four reference base stations and a mobile label; clocks of the base stations and the label are completely unified into a reference time axis; the base station 1 is the main station, and used for coordinating a signal communication time sequence of the system, and simultaneously, providing time information thereof for all other base stations and the label; the base stations 2-4 are auxiliary stations, and used for respectively providing time information for the label under the control of the base station 1; and the label is a user needing to be positioned in practice, and is positioned by receiving the time information of the base stations 1-4. By means of the multi-user UWB indoor positioning system disclosed by the invention, the time synchronization problem in the UWB positioning system can be solved by establishing a unified correction model for a system clock, establishing the linear corresponding relationship between the clock and the real distance and resolving related parameters in a clock correction model.

Multi-user ultra-wideband (UWB) indoor positioning system

The present invention relates to the TDOA location technology field, especially to a mobile station location device and method based on TDOA location and location device based on mobile station location device Any extra auxiliary device is not needed, there is no any difference between a mobile station and a fixed station about the participation in a location process, it is only needed that a location engine performs data processing of the mobile station, and a plurality of modes are employed to realize position location of the mobile station All the location stations can perform synchronization processing; all the location stations broadcast location information; all the location stations receive location information broadcasted by other location stations and upload related time stamps and location information corresponding to the location station to the location engine in real time for storage; the location engine obtains a distance value or a distance difference related to the mobile station according to the fixed station position information and the related time stamp; and based on the distance value or the distance difference and the fixed station position coordinate information, a correlation positioning method is employed to obtain coordinates of the mobile station

Mobile station location device and method based on TDOA location and location device based on mobile station location device

The invention relates to the technical field of wireless communication networks, in particular to an indoor and outdoor integrated high-precision positioning and navigation system as well as a positioning method thereof. The system comprises a map data construction unit, an indoor ultra-wideband positioning and navigation unit, an outdoor BD/GPS positioning and navigation unit, an indoor and outdoor positioning data fusion unit, a central server unit and a terminal display unit, wherein the indoor ultra-wideband positioning and navigation unit is used for performing indoor space positioning in a ranging mode, the outdoor BD/GPS positioning and navigation unit is used for performing outdoor space positioning through a Beidou satellite navigation/GPS satellite navigation system, the indoor and outdoor positioning data fusion unit is used for judging whether a positioning label is indoor or outdoor and can intelligently switch positioning modes according to the judgment result and fuse indoor and outdoor positioning manners. Problems that positioning and navigation of personnel and objects in a large-range area are difficult to realize, not high in precision and the like at present are solved, and large signal interference and positioning deviation caused by mutual interference among signals can be avoided in the ranging mode.

Indoor and outdoor integrated high-precision positioning and navigation system as well as positioning method thereof

The invention relates to the technical field of wireless communication network positioning, and in particular relates to a passive positioning system based on ultra wide band (UWB) and a positioning method thereof. The positioning system comprises more than three positioning base stations and a UWB positioner which comprises antenna, a UWB receiver, a high-definition clock, a positioner data processing unit and a positioning engine; the positioning base station comprises a base station code ID generating unit, a time synchronization unit, a data processing unit, a UWB transceiver, a high-definition clock and an antenna. According to system and method, the positioning is performed by combing positioning technologies such as the extremely narrow pulse UWB signal and TDOA, the high-definition positioning independent of the horizontal and vertical direction of the external communication network is achieved, the positioning problem in the area with poor satellite or communications signals is solved, the system and method can be widely applied to indoor and outdoor working environments, particularly enclosed environments such as civil defense, disaster relief and other emergency sites with interrupted signals, and tunnels.

Passive positioning system based on ultra wide band (UWB) and positioning method

The utility model relates to an anti-loss alarm based on wireless ultra-wide band technology. The anti-loss alarm comprises a mother machine and at least one sub machine. The son machine comprises a master control module, a UWB wireless transceiver module, an alarm module and a power supply module. The mater control module, the UWB wireless transceiver module and the alarm module are respectively connected with the power supply module. The UWB wireless transceiver module and the alarm module are respectively connected with the master control module. The mother machine is provided with a storage module and a man-machine interaction module. Other modules of the mother machine are similar with the sub machine. The storage module and the man-machine interaction module are respectively connected with the master control module. The storage module is used for storing ID number of the sub machine which matches the mother machine and icons of corresponding objects. The man-machine interaction module is used for setting the anti-loss alarm and displaying related information. The anti-loss alarm sufficiently utilizes characteristics of high ranging precision, high penetrability, high interference resistance and low power consumption in UWB, and is provided with an alarm system. An alarm distance can be set according to a particular application environment. Loss of objects and personnel is prevented.

Anti-loss alarm based on wireless ultra-wide band technology

The invention discloses a communication device based on a carrier-free pulse ultra-wide-band active positioning tag. The communication device comprises a power control circuit, a modulator circuit, a pulse generator circuit and an ultra-wide-band printed antenna, and is characterized in that the power control circuit is connected to the modulator circuit and the pulse generator circuit, and a second-order differential Gaussian pulse signal which is formed by a signal through the modulator circuit and the pulse generator circuit is output, and is transmitted out through the ultra-wide-band printed antenna. According to the carrier-free communication mode which is adopted for the communication device, the whole circuit structure is greatly simplified; due to the fact that the pulse generator circuit is adopted, the direct-current component and the low-frequency component of a pulse are reduced, the frequency spectrum use ratio of the pulse is increased, and the defect that in a traditional carrier-free communication system, the frequency spectrum use ratio is low is overcome.

Communication device based on carrier-free pulse ultra-wide-band active positioning tag

The utility model discloses a communication device based on a carrier free pulse ultra wideband active positioning label. The device comprises a power supply control circuit, a modulation circuit, a pulse generator circuit and an ultra wideband printed antenna. The device is characterized in that the power supply control circuit is respectively connected to the modulation circuit and the pulse generator circuit, and a signal passes through the modulation circuit and the pulse generator circuit to form second-order differential Gauss pulse signal output which is emitted through the ultra wideband printed antenna. According to the communication device, a carrier free communication mode is adopted, the overall circuit structure is greatly simplified, the pulse generator circuit is employed, the DC component and low frequency component of a pulse are reduced, the pulse spectrum utilization of the pulse is raised, and the defect of low spectrum utilization in a traditional carrier free communication system is made up.

Yuan Zilun

Papers

Indoor and outdoor integrated high-precision positioning and navigation system as well as positioning method thereof

Passive positioning system based on ultra wide band (UWB) and positioning method

Anti-loss alarm based on wireless ultra-wide band technology

Communication device based on carrier-free pulse ultra-wide-band active positioning tag

Active positioning label based on carrier free pulse ultra wideband technology