CN1434662A

CN1434662A - Method for locating searching mobile user in palm equipment

Info

Publication number: CN1434662A
Application number: CN 03118567
Authority: CN
Inventors: 马洮安
Original assignee: AOFA SCIENCE AND TECHNOLOGY ENGINEERING Co Ltd WUHAN
Current assignee: AOFA SCIENCE AND TECHNOLOGY ENGINEERING Co Ltd WUHAN
Priority date: 2003-01-30
Filing date: 2003-01-30
Publication date: 2003-08-06
Anticipated expiration: 2023-01-30
Also published as: CN1173595C

Abstract

This invention relates to position inquiry mobile user method, concretly, to mobile communication, geographic information, radio network appliance and handheld equipments including the following steps: sending out a position request from handheld equipment to remote server via radio network, position service program of which end gets vehicle or handheld can information and processes it then sends back to handheld equipment vi a radio network to display it on electronic map, characterizing that either vehicle or handheld call can realize position display on handheld equipment of only in the area of hanfheld cal signals by position service program, the process of getting and processing position information is finished on position service program to reduce its burden.

Description

A kind of on hand-held device locating query mobile subscriber's method

Technical field

The present invention relates to locating query mobile subscriber's method, specifically, relate to mobile communication, geography information, wireless network application and hand-held device.Described hand-held device is palmtop PC (PDA), personal assistant (PALM), smart mobile phone (Smartphone).Described locating query is by the wireless telecommunications means, receiving position information, and be presented on the electronic chart, realize mobile subscriber's locating query function.Positional information comprises gps signal that vehicle receives or the mobile phone locating information that obtains from the mobile phone location-server.

Background technology

GPRS (GPRS) is a second generation data, services, wireless data service can be positioned on the data high-speed road above 100kbps.CDMA (digital mobile telephone system) is that the frequency that designs according to Unite States Standard (IS-95) is in 900～1800MHz scope.WLAN (WLAN (wireless local area network)) is a kind of Local Area Network by high frequency radio wave but not cable communication and transmission data between net computer and equipment.BLUETOOTH (bluetooth) is a kind of short-range radio technology, and its effect is to simplify between the mininet equipment (as mobile PC, palmtop PC, mobile phone) and the communication between these equipment and the Internet.PDA/PALM/Smartphone can pass through GPRS, CDMA, BLUETOOTH and WLAN technology wireless access the Internet.

Wireless mobile positioning technique:

A, based on the location of sub-district ID

This is according to the position of determining the user for the residing sub-district ID of travelling carriage number.When travelling carriage after current area registration, system database will and be mapped for sub-district ID number this travelling carriage.As long as the center of cell base station and covering radius are broadcast to all interior travelling carriages of coverage, travelling carriage just can be known its residing geographical position.The great advantage of this location technology is that response speed is very fast, and needn't be to network and travelling carriage upgrading; Shortcoming is to locate slightlyer, and precision depends on radius of society.

B, the location that time of arrival (toa) is measured or signal arrival time difference is measured

Location technology based on the electric wave time of advent (TOA) is to be undertaken by measuring the propagation time of electric wave from the transmitter to the travelling carriage.TOA and known radio wave propagation speed multiply each other, and obtain the electric wave transmission range, and it is that the center of circle, transmission range are on the circle of radius that transmitter then is in the receiver.A plurality of receivers calculate simultaneously, and the intersection point of circle is exactly the residing position of transmitter.

Another kind of technology is to determine the position of travelling carriage via the time of advent of different propagation paths poor (TDOA) according to the signal that different base station receives same travelling carriage.The transmission of different mobile stations is monitored in each base station, notes TOA and sends a control centre to, is calculated required TDOA and is drawn hyperbola by control centre, can determine the position of travelling carriage according to hyp intersection point.Compare with location technology, eliminated dependence, can reduce cost and guarantee certain positioning accuracy time reference based on the location technology of TDOA based on TOA.

C, GPS location

The GPS receiver of moving target receives the locator data that position location satellite (totally 24 are distributed on 6 different Earth's orbits) is sent each second, and goes out the coordinate in self geographical position of living in according to the data computation of sending from least 3 different satellites.Coordinate data by the wireless modem that meets GSM standard after, with the form of short message integrated informations such as user's position, state, warning, sensing are sent to the GSM mobile network.

Utilize above no circuit mobile positioning technique can obtain positional information of mobile subscriber.

Carry out mobile subscriber's location and can cause hand-held device over-burden but the hand-held device by access of radio network directly obtains and handle positional information.

By short message mode locating query user on hand-held device, specifically be exactly that hand-held device sends instruction by short message mode, obtain the note of mobile subscriber's positional information, locating and displaying on electronic chart.Can increase customer charge in this way.And can save customer charge by wireless network.

The present invention supports wireless network and note dual mode to obtain positional information, and the step that will obtain and handle positional information is placed on server end, has reduced the burden of hand-held device end.

By retrieval, do not find on the PDA/Palm/Smartphone by using the location-based service on the remote server, obtain user position information and the method for locating and displaying on electronic chart.

Summary of the invention

The purpose of this invention is to provide a kind of on hand-held device locating query mobile subscriber's method, specifically provide a kind of hand-held device end and connect the remote server end by wireless network, positioning instruction in the transmission of server-side processes hand-held device, obtain mobile subscriber's locating information, pass back to the method for locating and displaying on hand-held device and the electronic chart thereon.

This method is taked following steps:

1, select positioning command at the hand-held device end, interface specification in accordance with regulations sends to wireless network by the web-transporting device interface after resolving;

2, after the web-transporting device interface of server end receives instruction,, again instruction is dispatched according to the interface specification conversion instruction;

3, select to send instruction, obtain mobile subscriber's positional information by short message mode or wireless network.With the locating information that receives type according to the mobile subscriber, select suitable analysis program to resolve locating information, the locating information after will resolving again according to interface specification change with message scheduling after send to wireless network by network transfer equipment interface;

4, the web-transporting device interface of hand-held device end receives the locating information of sending, and according to the interface specification conversion, parses the longitude and latitude of locating information;

5, judge the city, place according to longitude and latitude, calling corresponding electronic chart on the hand-held device and locating and displaying on map.

The present invention has the following advantages and good effect:

1, the mobile subscriber is as long as in the zone that mobile phone signal covers, all can realize locating and displaying by the location-based service program on hand-held device;

2, obtain and the process of process user positional information is finished at server end, alleviated the burden of hand-held device, the present invention be can be used on the lower hand-held device of hardware configuration;

3, by the wireless network transmissions locating information, saved customer charge, this also helps the present invention's self popularization.

Description of drawings:

Fig. 1 is a block diagram of the present invention.Wherein:

A-PDA/Palm/Smartphone holds (client);

B-wireless network (GPRS/CDMA/WLAN/BLUETOOTH);

C-remote server end (server end);

The 1-select command is selected the instruction of locating query;

2-interface specification A, self-defining interface specification is with the XML format string of the suitable Network Transmission of instruction transformation one-tenth;

3-network transfer equipment interface, the connecting interface of support and wireless network, the transmitting-receiving of message;

5-network transfer equipment interface, the connecting interface of support and wireless network, the transmitting-receiving of message;

6-interface specification B, self-defining interface specification converts the XML format string to corresponding instruction;

The 7-command scheduling;

The 8-short message receiving-transmitting;

9-GPRS connects;

10-sends;

The 11-car-mounted terminal can obtain the hardware device of GPS framing signal;

12-mobile phone location-server can be inquired about the server that obtains mobile phone location information;

13-receives locating information;

14-selects analysis program;

15-resolves locating information;

16-interface specification C, self-defining interface specification converts locating information to the XML format string that is fit to Network Transmission;

The 17-message scheduling;

18-interface specification D, self-defining interface specification converts the XML format string to corresponding locating information;

The 19-longitude and latitude is resolved, and resolves the warp, the latitude value that extract in the locating information;

20-obtains the city, judges the city, place according to warp, latitude value;

21-calls electronic urban map, opens the electronic chart in corresponding city on hand-held device;

The 22-locating and displaying navigates to the mobile subscriber position on the electronic chart.

Embodiment

Further specify process of the present invention below in conjunction with accompanying drawing:

As shown in Figure 1, after selecting to send positioning command by select command module 1 on the PDA/Palm/Smartphone, according to interface specification 2, be converted to the XML format string that service routine can be discerned, the interface 3 by PDA/Palm/Smartphone and network transfer equipment sends to wireless network B.After the interface 5 of the network transfer equipment on the remote server receives the XML format order that PDA/Palm/Smartphone transmits, the location-based service program is at first according to interface specification 6 conversions, send into instruction queue, command scheduling 7 is with many instructions in the concurrent processing command queue, selection sends 10 by the interface 9 that receiving short message interface 8 or GPRS connect, and waits for the positional information of returning.After car-mounted terminal 11 on the vehicle receives gps signal, positional information is returned to server; If search mobile phone location, the location-based service program on the server can arrive searches the locating information of mobile phone and returns to server on the mobile phone location-server 12.The reception locating information module 13 of location-based service program is after receiving the locating information that the user returns, type according to the mobile subscriber, select corresponding information analysis program 14, the locating information that receives is resolved 15 one-tenth latitude and longitude information, and convert the XML form to according to interface specification 16.Select needs to receive the PDA/Palm/Smartphone of message by message scheduling 17, the interface 5 through the network transfer equipment is sent back to wireless network B with locating information again.

PDA/Palm/Smartphone receives the locating information of returning by the interface 3 of network transfer equipment, resolve to user's locating information by interface specification module 18 after, latitude and longitude information is resolved 19 one-tenth longitudes and latitudes and extracted the locational urban information data 20 of longitude and latitude, in system, call this electronic urban map 21 of having stored, and with the longitude and latitude that obtains on map with tangible index point locating and displaying 22, with expression user's position.

The instruction that the command scheduling module 7 of location-based service program will receive records in the database, need obtain the PDA/Palm/Smartphone of customer position information simultaneously with the formation formal notation, when the locating information passback that obtains the user, message scheduling module 17 can obtain to have a mind to receive the PDA/Palm/Smartphone of this customer position information from formation.According to these characteristics,, when this user has the locating information passback, can send to a plurality of PDA/Palm/Smartphone synchronously and position demonstration if when having a plurality of PDA/Palm/Smartphone to send certain user received the instruction of locating information.

The judgement in city, user place, border with each city, be abstracted into a plurality of polygons, polygonal coordinate figure is converted to longitude and latitude, judges the polygon set A that the position is affiliated, all polygons in the traversal set A, judge the containment relationship between polygon, take out minimum by containing person, the checking position coordinates in this polygon after, can obtain the city of this polygon correspondence.

Claims

1, a kind of on hand-held device locating query mobile subscriber's method, it is characterized in that:

Comprise hand-held device end (A), wireless network (B), remote server end (C), hand-held device end (A), remote server end (C) are interconnected by wireless network (B);

The steps include:

The order (1) that a, selection will send,

B, press interface specification A (2) conversion command,

C, send to wireless network (B) by network transfer equipment interface (3),

D, network transfer equipment interface (5) receive the order of sending,

E, according to interface specification B (6) conversion command,

F, to the conversion after order carry out command scheduling (7),

G, selection send instruction (10) with short message receiving-transmitting mode (8) or wireless network mode (9),

H, reception mobile subscriber's locating information (13),

I, select analysis program (14) according to locating information,

J, parsing locating information (15),

K, according to interface specification C (16) conversion locating information,

L, to the conversion after locating information carry out message scheduling (17),

M, locating information is sent to wireless network B by network transfer equipment interface (5),

N, network transfer equipment interface (3) receive the locating information of sending,

O, according to interface specification D (18) conversion locating information,

The longitude and latitude (19) of p, parsing locating information,

Q, judge city, mobile subscriber place (20) by the longitude and latitude that resolve to obtain,

R, call electronic urban map (21),

S, on electronic chart locating and displaying mobile subscriber (22).