CN1162035C - Method for locating a mobile phone and providing emergency services, and a locating service system - Google Patents

Abstract

A method for locating a mobile phone and providing emergency services includes the following steps: a PAS mobile phone user presses a specific key sequence or an emergency help key; the PAS system sends a message to a location service center including a base station ID number or its latitude and longitude values or address information; the location service center locates the base station location information using the base station ID number or its latitude and longitude values or address information; and the base station location information is provided to the emergency service provider. This method is low-cost and meets typical accuracy requirements.

Description

Method for locating a mobile phone and providing emergency services, and a locating service system

technical field

The present invention relates to a PHS (Personal Handset System microcellular personal mobile terminal system) communication network, in particular, relates to a method and a system for positioning a PHS communication network user and providing emergency services.

Background technique

There are two main traditional emergency positioning and tracking technologies: one is to locate and track a given target through satellite GPS technology. The second is to locate the calling alarm user of the emergency system through the data query of the installed address of the fixed user.

The cost of the existing GPS positioning system is relatively high, and it is expensive for individual (mobile) users, and it is difficult to obtain popular applications. The method of querying and locating by using the installed address is limited to fixedly installed phones, and cannot confirm the exact location of the mobile phone user. In the existing emergency service systems such as 110, 119, and 120, the alarm station can only locate the alarm point of the PSTN fixed telephone service and display the corresponding calling user information. For mobile users, the user's location is uncertain when roaming. When a mobile user dials 110, 119, 120, etc., the electronic map of the alarm system cannot correctly display the location of the caller. When receiving police officers to conduct manual inquiries, when encountering the elderly, children, emergency situations, language barriers, or unable to explain the location clearly, it will bring difficulties to the police in a timely manner and cause unnecessary losses to the parties in emergency. With the large-scale promotion of the PHS system, the number of PS users has increased dramatically, which makes it particularly important to provide the alarm location function of PS users for the emergency service system.

Contents of the invention

Therefore, the object of the present invention is to provide an inexpensive method and system for locating mobile phone users and automatically providing the locating information to an external processing platform.

The invention provides a method for locating a PHS mobile phone and providing emergency services, which is characterized in that it includes the following steps: the user of the PAS mobile phone presses a specific key sequence or an emergency help key; The base station ID number and the called service number; the positioning service center queries the location information of the base station through the base station ID number or its latitude and longitude value or address information; and provides the base station location information to the emergency service provider according to the called number.

The invention provides a method for performing location query on a specific PHS mobile terminal and providing emergency services, which is characterized in that it includes the steps: the emergency service provider sends a request to the positioning service center PLSC to perform location query on a specific mobile terminal user, and track ; PLSC sends a request to the S-ATC of the PAS system to query the ID number of the user logging in to the base station; PLSC obtains the base station ID number according to the query, finds out the installation location information of the base station; and returns the location information to the emergency service provider.

The present invention provides a service positioning system used in a PAS communication system, which is used to provide location information to an emergency service center. The PAS communication system includes a traffic control system (S-ATC), a personal handset terminal (PS ), characterized in that the service positioning system includes: an authentication device, a message processing device and a communication device, wherein the communication device is used to establish a data communication link to the S-ATC of the PAS system and each emergency service center, and completes The sending and receiving work of data packets; the authentication device is used to receive the authentication request sent by the message processing device, and feed back the authentication result to the message processing device; the message processing device receives all data packets sent by the communication device, and Perform analysis and processing, and first authenticate the request message that needs authentication through the authentication device, then perform corresponding processing according to the authentication feedback result, and send the processing result to the corresponding destination through the communication module, wherein The emergency service request sent by the personal handset terminal is sent to the traffic control system, and the traffic control system sends the position information of the handset terminal to the message processing device, and after the signal processing of the message processing device, it is sent to the corresponding emergency service through the communication device. service center, and the location service request from the emergency service center is also sent to the message processing device through the communication device, and then sent to the traffic control system in the PAS system through the communication device after authentication, and then the traffic control system will request The result is sent to the message processing device through the communication device, and after being processed, it is sent to the emergency service center through the communication device.

The invention utilizes the micro-cell belonging structure of the PHS network to realize the positioning and tracking of the PHS alarm target, and improves the alarm handling speed and accuracy of the emergency system. This patent makes full use of the existing PHS network and emergency service and command system, such as the PAS (Personal Access System wireless access network system) personal access network system launched by UTStarcom, which has low investment in the system integration process. Compared with the existing GPS positioning system, it has obvious price advantages.

The method of using PHS network to locate and track alarm users or predetermined targets is to provide mobile phone call positioning, location query and tracking functions on the basis of existing PHS public network and user mobile terminals.

The alarm call positioning method in the present invention is mainly applied to the positioning of PS user alarms. The key to the alarm positioning technology is that when a PS user dials 110, 119 and other emergency service calls, or presses one or several preset alarms for help When the key is pressed, the PAS system first forwards the special call to the switch through the system node, and at the same time forwards a message about "call location report" to the location service center (PLSC) of the PAS system, which contains the special call number (such as 110, 119, 120, 122), the calling number (used to correspond to the alarm number), the alarm time and the ID number of the base station where the current calling user is located. After receiving the positioning report, the positioning service center inquires the geographic location information of the home base station, and automatically sends the required PS alarm user's calling number, current location and other information to the relevant networked emergency service system (client) , and the corresponding emergency service system will perform positioning display on the alarm station. The advantages of this invention are: firstly, it has sufficient positioning accuracy. Since the PHS system adopts a micro-cellular structure, the coverage of each micro-cell base station is usually 100-200 meters. The emergency service system only needs to obtain the current base station installation location of the PAS user , the current location of the calling user can be basically determined. In some cities with dense base station coverage, the regional positioning accuracy of the microcell can reach 50 meters. Secondly, the PAS system sends the user location information to the emergency service center in a timely manner while forwarding the call, without waiting for the alarm station to accept it, which greatly speeds up the emergency service system's response to important users and emergency situations.

The PAS user position query method in the present invention is mainly applicable to units and individuals who apply for positioning protection functions. When a certain PS target needs to be positioned and inquired, the user can inquire about a special user positioning service desk by phone or network connection. The service desk accesses the PLSC of the PAS system to obtain the user's location information and personal information. If an electronic map display system is added on the basis of the dedicated communication software, the user can also visually locate the user's current geographic location on the electronic map.

Description of drawings

The present invention will be described in more detail below by referring to the accompanying drawings, in which

Fig. 1 is a schematic diagram of a communication system to which the positioning system of the present invention is applied;

Fig. 2 is a schematic diagram of the positioning service system according to the present invention;

Fig. 3 is the block diagram of the positioning service system according to the design of Fig. 2;

Fig. 4 is the flow chart of the active transmission mode of the PAS system of the present invention;

Fig. 5 is the flow chart of PAS system query mode of the present invention;

Fig. 6 is the flow chart of tracking mode of the present invention;

Fig. 7 is the workflow of the positioning service center of the present invention;

Fig. 8 is a logical block diagram of the positioning service system of the present invention.

The present invention is described in detail below.

Detailed ways

FIG. 1 is a schematic diagram of a communication system to which the positioning system of the present invention is applied. As shown in Figure 1, the system includes a PAS system composed of PAS handheld users (not shown), PAS base stations (not shown), ATC (not shown), and emergency service systems such as 110, 119, and other locations Information query system, weather forecast, service and other information sources, location information query desk, etc. The positioning service system of the present invention is connected with 110, 119, location information inquiry and other systems through wide area network WAN, public switched telephone network or integrated service digital network PSTN/ISDN and the like. The PAS positioning service system can also be connected with the ATC of the PAS system through LAN/RS 232 or wide area network.

Fig. 2 is a schematic diagram of a positioning service system according to an embodiment of the present invention. As shown in Figure 2, the system consists of PAS system, LSC active sending interface, emergency service communication platform RI and emergency customer centers such as 110/119. The PAS system includes PS mobile phones, RP, RPC, ATC, S-ATC and corresponding communication networks in the existing PHS network. The PLSC active sending interface refers to the software interface that provides positioning information in the form of API or MIB. The emergency service platform refers to the communication with various It is a communication server for different customer centers to communicate and manage. The 110/119 alarm command system is generally composed of an alarm voice platform, a positioning map system and a command system. This embodiment considers mainly adopting the PAS active sending mode which will be described in detail below. When a user in the public network coverage area dials a special service number such as 110/119/120, the PAS system first transfers the call to the switch in the home area, and at the same time sends a similar system event to the network management and LSC positioning service center of the PAS system The calling location information of the caller is actively sent through the DAO (Data Access Object) to access the base station geographic location database of the PLSC, and the location data of the emergency caller is sent to the emergency service platform RI, which notifies the corresponding emergency customer center. Then the emergency customer center will carry out necessary alarm and command operations according to the alarm and positioning display. The advantage of this structure is that the division of labor and responsibilities between positioning information and emergency services are clearly distinguished, which is more reasonable for the security of the PAS system and the operability of system integration. The dotted line in the figure shows this division. The PAS system part is responsible for providing location information of emergency calls such as 110/119/120/122, and the location information can be interfaced in the form of CSOCKET server to agree on a unified interface specification and data output in packet format and provided to the emergency communication and command system.

In a specific embodiment, the communication protocol of the positioning service interface is defined as:

           
Socket connection port number: CSocket port number 6000

Positioning information packet format:

#define MAXNUM 1024

#define STRLEN 56

The packet header structure:

Message types=3 (data type WORD)

Message Id＝0x9005 (data type WORD)

Data#1＝single number (data type WORD)

Data#2＝Data packet length (data type WORD)

(sizeof(Datapkt)*Data#1)

Data#3 = emergency call data part (data type Datapkt)

Sample:

typedef Struct

{

WORD types; /*CDR type 3*/
        <!-- SIPO <DP n="5"> -->
        <dp n="d5"/>
WORD msgid; /*information type 0X9005*/

WORD number; /*single number*/

WORD datalen; /*pkt data packet length
=sizeof(Datapkt)*number*/

Datapkt pkt[MAXNUM]; /*emergency call data part*/

}Msg;

The structure of the emergency call data part of the data packet:

Data#1=calling number (data type Char(16))

Data#2 = called number 110, 119, 120, etc. (data type

Char(4))

Data#3＝Ticket time hh:mm:ss (data type

Char(8))

Data#4＝RP ID number (Node+RPC Id+RP Id) (data

of type Char(20))

Data#5＝Information of the neighborhood where the RP is located (data type Char(56))

Data#6＝The information of the city where the RP is located (data type Char(56))

Data#7＝Province information where the RP is located (data type Char(56))

Data#8＝RP postal code (data type Char(56))
Data#9＝RP latitude value (data type double)

Data#10＝RP latitude description (data type Char(56))

Data#11=RP longitude value (data type double)

Data#12=RP longitude description (data type Char(56))

Sample

typedef struct

{
        <!-- SIPO <DP n="6"> -->
        <dp n="d6"/>
char calling[16]; /*calling number*/

char called[4]; /*Called number 110, 119, 120*/

char time[8]; /* bill time hh:mm:ss*/

char rpid[20]; /*RP ID number*/

char rpstreet[STRLEN]; /*block information*/

char rpcity[STRLEN]; /*city information*/

char rppprovince[STRLEN]; /*province information*/

char rpzipcode[STRLEN]; /*zip code*/

double rplattitudedeg; /*latitude value*/

char rplattitudens[STRLEN]; /*latitude description*/

double rplongitudedeg; /*longitude value*/

char rplongitudeew[STRLEN]; /*longitude description*/

}Datapkt;

        

FIG. 3 is a block diagram of the positioning service system designed with reference to FIG. 2 . Referring to Fig. 3, the system is composed of PAS system, positioning service server PLSC, various clients with positioning service information requirements, and Netman (network management system). The PAS system includes PS mobile phones, RP, RPC, ATC, S-ATC and corresponding communication networks in the existing PHS network. The PLSC positioning service server includes customer management/billing part, customer task management table, positioning description database LDR, PAS In the interactive communication part, various PAS positioning clients can be emergency command centers, or information desks, websites, units and individual users that need positioning services.

Various working modes and workflows of the system of the present invention will be described below with reference to FIGS. 4-6 .

(1) Active sending method of PAS system

Fig. 4 is a flow chart of the active sending mode of the PAS system of the present invention. Referring to Fig. 4, the flow starts from block 401, the PS user dials 110, 119 and other emergency service calls, or presses one or several preset alarm and help keys. Next, at block 402, the PAS system forwards the special call through the system node to the switch. In block 403, forward a message about "call location report" to the location service center (PLSC) simultaneously to the PAS system. Corresponding to the alarm number), alarm time and the ID number of the base station where the current calling user is located or its latitude and longitude value or address information. In a preferred embodiment of the present invention, the message is a message whose ID number is MSGID=0x9011, and the message content is "called number (alarm category); calling number (or alarm device identification number); current location information (RP ID Number)", where the called number (alarm category) is 110, 119, 122, etc.

In block 404, after receiving the positioning report, the positioning service center inquires out the geographic location information and corresponding user information of the home base station, and automatically forwards the location information to the relevant emergency service system (client) connected to the network in block 405. The caller number, current location and other information of the required PS alarm user will be handled by the alarm center.

(2) Query method

Fig. 5 is a flow chart of the query mode of the PAS system of the present invention. Referring to Fig. 5, the process starts from block 501. When the emergency service system that has applied for the query service needs the location information of a specific PAS user, it can send a query command to the PAS positioning service center PLSC through a dedicated port, and then in block 502, the PLSC It is responsible for checking the authentication codes of the querying client and the queried user, and if the authentication fails, the request is rejected at block 505. The authentication method can be any method known to those skilled in the art, and will not be described in detail here. If the authentication is passed, then in block 503 an inquiry request is sent to the S-ATC (traffic control system) of the PAS system to inquire about the number of the current base station of the target PS. In block 504, the geographical location information of the base station is obtained according to the current base station number, and returned in block 506, and at the same time, the current location information of the target PS is sent to the emergency service system. In this embodiment, the message ID number for querying signal information is MSGID=0x9013, and its content DATA="calling number"

The message returned after the query includes: the number of the query target PS, the query result, the query time, the user status and the location information of the target PS, and the query is completed after the two parties confirm the communication. For example, the message ID of the returned message is MSGID=0x9014, and its content is DATA="sign; calling number; current location information (RP ID number or its latitude and longitude value or address information); state"

        Among them: flag = 0: the query is successful.

     Flag > 0: Query failed. The reason for the failure may be that the calling number is not

Exists, out of service area, or insufficient authority. The following position when the query fails

The contents of fields such as information are invalid.

State = 0: Talking state. (If status information is temporarily unavailable,

`` then this field is always 0).

State = 1: non-communication state.

(3) Tracking method

Fig. 6 is the flow chart of tracking mode of the present invention; With reference to Fig. 6, flow process starts from box 601, and in some special cases, emergency command centers such as 110 need to specify PS (personal handset terminal) user (as police officers, suspects) to track. After receiving the start tracking request, in block 602, after receiving the tracking instruction from the emergency service center, the PLSC will regularly perform location query/feedback on the target user until the client sends a stop tracking message. The message ID number requesting the start of tracking can be, for example, a message of MSGID=0x9016, and its content DATA=“calling number”

After the authorized emergency client system sends the 'start tracking' command, the LSC of the PAS system is responsible for the authentication of the client, after confirming the client authority, PS user number and query interval, block 602, and then in block 603, PLSC (PAS Location Service Centre, the positioning service server of the PAS system) will regularly send a query request to the S-ATC of the PAS system to query the number of the current base station of the target PS. After the query finishes, it is translated into the position information (block 604) of the target base station in the PLSC database, and returns "location tracking result" (block 605) to the client sending the tracking request in time, and the message returned regularly includes: track the target PS The number, query result, query time, user status and location information of the target PS are completed by both parties after confirming the communication. PLSC will continue to track the target user until the client sends out a 'stop tracking command', and a tracking is completed after confirmation by both parties. Tracking feedback message can for example be the message that message ID number is MSGID=0x9017, and its content DATA=" sign; Calling number; Current location information (RP ID number or its longitude and latitude value or address information) "

      Among them: flag = 0: tracking is successful;

    Flag > 0: Tracking failed. The reason for the failure may be that the calling number is not

Exists, out of service area, or insufficient authority. Back position when tracking fails

Field content such as information is invalid.

The tracking stop message can be, for example, a message whose ID number is MSGID=0x9019, and whose content DATA=“calling number”

In the user location inquiry and tracking business, in order to protect the communication security of the PAS system and the privacy of the PS user, the PLSC designed by the present invention will perform strict authority and identity authentication on the client and the individual who inquire and track the location information of the PAS user, It also charges and controls the traffic of the query service, and sends the PS user location information after being encrypted.

Fig. 7 is the workflow of the positioning service center of the present invention. As shown in Figure 7, the process initializes the system at block 700, including establishing a communication link with the S-ATC and the emergency service center (block 701), and then authenticates each emergency service center to determine its Correctness of identity (block 702). After the initialization is completed, the system enters the message processing flow to process messages from S-ATC and emergency service centers.

After receiving the call location message (block 704) that S-ATC actively sends, the system analyzes the message, takes out the content such as calling number, called number and location information, and then puts the calling number, location information, etc. The content is sent to the emergency services corresponding to the called number (block 705).

After receiving the location query message from the emergency service center (block 706), the system first confirms whether it has location query authority, and judges whether the query traffic sent to S-ATC reaches the limit value, if it reaches the limit value or the authority does not have , the query failure message is fed back to the emergency service center, otherwise the message is forwarded to the S-ATC, and the query structure fed back by the S-ATC is forwarded to the emergency service center (block 707).

After receiving the location tracking message from the emergency service center (block 708), the system first confirms whether it has location tracking authority, and judges whether the tracking traffic sent to S-ATC reaches the limit value, if it reaches the limit value or the authority does not have , then feed back the tracking failure message to the emergency service center, otherwise send a location query message to the S-ATC regularly, and forward the query results fed back by the S-ATC to the emergency service center until the tracking information sent by the emergency service center is received Stop message (block 709).

Fig. 8 shows the service location system of the present invention. As shown in Figure 8, the service positioning system of the present invention includes an authentication device 801, a message processing device 802 and a communication device 803, wherein the communication device is used to establish a data communication link to the PAS system and each emergency service center, including the use of a local area network Routing with the wide area network, and completing the sending and receiving of data packets; the authentication device is used to receive the authentication request sent by the message processing device, and feed back the authentication result to the message processing device; the message processing device receives all the data packets sent by the communication device , and analyze and process the data packet. For the request message that needs to be authenticated, it is first authenticated by the authentication device, and then the corresponding processing is performed according to the authentication feedback result, and the processing result is sent to the corresponding message through the communication module. destination.

The present invention has been described above with reference to specific embodiments. Obviously, those of ordinary skill in the present invention can realize other embodiments through equivalent replacement, transformation, modification, etc. within the essential scope disclosed in the present invention.

implementation.

Claims (10)

1. one kind positions and provides the method for emergency service to the PHS mobile phone, it is characterized in that may further comprise the steps:

The PAS cellphone subscriber is by next specific key press sequence or a flash appeal key;

The PAS system sends for location service center PLSC to comprise the message of login base station IDs number and called service number;

The positioning service center inquires the positional information of base station by base station IDs number or its latitude and longitude value or address information; And base station position information is offered the emergency service provider according to called number.

2. method as claimed in claim 1 is characterized in that also being included in the user and presses the step that will call out behind specific key press sequence or the flash appeal key by the normal mode route.

3. method as claimed in claim 1 is characterized in that also comprising and does not wait until that the platform of receiving a crime report accepts the step that just positions demonstration in the positioning service client.

4. method as claimed in claim 1 is characterized in that also being included in the PAS internal system installation site information of base station is carried out synchronous updating steps.

5. one kind positions inquiry and the method for emergency service is provided specific PHS portable terminal, it is characterized in that comprising step:

Emergency service supplier positions inquiry to the positioning service center P LSC request of sending to specific mobile phone users, follows the tracks of;

PLSC sends ID number of request inquiring user login base station to the S-ATC of PAS system;

PLSC obtains base station IDs number according to inquiry, finds out the installation site information of this base station; And

Positional information is returned to the emergency service provider.

6. method as claimed in claim 5 is characterized in that also comprising step:

Positioning service center P LSC carries out the step of authentication and security management to the emergency service provider.

7. method as claimed in claim 5, the ATC that it is characterized in that mind-set PAS system in the positioning service sends the step of the request require base station IDs number or its latitude and longitude value or address information.

8. method as claimed in claim 5, its feature is also to comprise that PLSC can decide to send requirement to the S-ATC of PAS system continuously at interval, inquiry be positioned user's base station IDs number or its latitude and longitude value or address information, thus the step of following function is provided for the emergency service provider.

9. method as claimed in claim 5, its feature are also to comprise that PLSC can be to emergency service provider's inquiry, and the request of tracking is provided with the step of flow restriction and billing function.

10. scope of business system that in the PAS communication system, uses, be used for providing positional information to the emergency service center, described PAS communication system comprises telephone traffic control system (S-ATC), and personal hand-held device terminal (PS) is characterized in that described scope of business system comprises:

Authentication device, message processing apparatus and communicator, wherein communicator is used to be established to the S-ATC of PAS system and the data link at each emergency service center, and finishes the transmitting-receiving work of packet; Authentication device is used to receive the authentication request that message processing apparatus is sent here, and authenticating result is fed back to message processing apparatus; All packets that message processing apparatus received communication device is sent here, and packet carried out analyzing and processing, to needing the request message of authentication, then at first it is carried out authentication by authentication device, handle accordingly according to the authentication feedback result then, and by communication module result with sending to corresponding target, wherein the emergency service request of sending of personal hand-held device terminal is fed to telephone traffic control system, telephone traffic control system is given message processing apparatus with this hand-held set location information of terminals, through the message processing apparatus signal processing after communicator is issued corresponding emergency service center, and the location service request of wherein coming from the emergency service center is also given message processing apparatus through communicator, after authentication, send to telephone traffic control system in the PAS system by communicator again, the telephone traffic control system result that will ask sends to message processing apparatus by communicator again then, and is sent to the emergency service center by communicator again after treatment.

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