KR101540060B1 - System for tracking location and service using bilateral wirless smart tag - Google Patents

Abstract

The present invention can be configured to include two or more wired / wireless transceivers, a smart two-way radio tag, a smart interworking server, and a portable terminal, thereby precisely tracking a location without a shadow area, setting new information in a tag through a server or a portable terminal, And an alarm operation, and provides a location tracking service system using a smart bidirectional wireless tag that can receive services without the burden of communication costs.

Description

TECHNICAL FIELD [0001] The present invention relates to a location tracking service system using a smart bidirectional wireless tag,

The present invention relates to a location tracking and service providing system using a wireless tag, and more particularly, to a system and method for providing location tracking and various service providing systems using wireless tags, and more particularly, To a location tracking service system using a smart two-way radio tag capable of location tracking and various services even in a communication shadow area where general communication is impossible.

Currently, the location based service (LBS) includes GPS, A-GPS (GPS + base station), terrestrial base station and Cell-ID using mobile base stations. It has a vulnerability that it can not provide services when a person or a moving object moves to a shadow area such as an indoor or underground area because it is being developed.

In order to overcome these weaknesses, a location tracking technique using RFID, Zigbee, CRICKET, ACTIVE BAT, iGS, camera, and laser has been developed as a method of tracking location and services of people or moving objects in the room .

However, since the location tracking method using RFID or Zigbee receiver has limitations in terms of compatibility and scalability, and since it is a technology for detecting a region, a plurality of receivers are required to increase precision, and reception is unstable , A shadow area where reception is not possible may occur, so that a specialist must design a sophisticated mesh structure and install it elaborately, which increases the installation cost.

Prior art patents related to the conventional position tracking system are Korean Patent No. 10-0991020, No. 10-1233569, No. 10-0816616, and the like.

The above-mentioned Patent No. 10-0991020 generates a beacon signal at a predetermined cycle by simply processing an RF signal with an RFID tag, detects it with three access points, and sends it to a central management server to track the position of the mobile object. No. 10-1233569 has a signal generator separately provided for transmitting a signal including access point identification information at regular intervals and transmits the signal to a location tracking server through a wireless tag and an access point to generate location information, No. 10-0816616 discloses a wireless tag that includes a plurality of connection points, a plurality of wireless tags, a plurality of fixed tags, and a location tracking module, Respectively. ≪ / RTI >

However, since all of the above-mentioned patents relate to the tag, the access point, the access point, and the central server, they can not set new information in the tag or request an emergency call or an alarm operation through the server or the user portable terminal have.

SUMMARY OF THE INVENTION The present invention has been proposed in order to solve the above problems of the prior art, and it is an object of the present invention to provide a mobile communication terminal, It is an object of the present invention to provide a location tracking service system using a smart bidirectional wireless tag capable of setting new information in a tag through a portable terminal, requesting an emergency call, an alarm operation and the like,

According to an aspect of the present invention, there is provided a location tracking service system comprising: a smart bidirectional wireless tag attached to a person or a moving object to transmit and receive a wireless signal; At least two smart two-way wired / wireless transceivers for wirelessly communicating with the wireless tag and the peripheral communication device and measuring the strength of the wireless signal and transmitting and receiving predetermined information; And a smart interworking server that performs wire / wireless communication with the wired / wireless transceiver and tracks the location of the wireless tag, transmits and receives the information, stores the tag information in a database, and provides the tag information to a portable terminal Wherein the peripheral communication device includes a neighboring wired / wireless transceiver of the wired / wireless transceiver, and the portable terminal directly communicates with the wireless tag and the wired / wireless transceiver to request a new event to the wireless tag Or receives the tag information.

The radio tag generates an alarm signal when receiving a radio signal from a predetermined one of the wired / wireless transceivers or receiving an alarm operation request signal from the server or the portable terminal, Other features.

The wireless tag adds the event information to the wireless transmission data, encrypts the wireless tag with the tag state information, and wirelessly transmits the wireless event event to the wireless tag in a predetermined cycle.

The wireless tag transmits the encrypted wireless transmission data to the wired / wireless transceiver and the portable terminal without pairing. When the wireless tag receives the information setting request from the wired / wireless transceiver or the portable terminal or receives various event requests The location tracking service system according to the present invention has a pairing and authentication step.

The server finds a first line segment by finding and connecting two wired / wireless transceivers that are close to the wireless tag from the unique ID and signal strength measurement data for each of the wired / wireless transceivers, A second line segment and a third line segment connecting the two wireless transceivers and the wireless tag are obtained from the information of the wireless tag and the signal strength measurement data obtained from the first line segment and the third line segment, And tracking the position of the wireless tag with the second line segment or the length of the third line segment according to the present invention.

The unique ID and signal strength measurement data for each of the wired / wireless transceivers are transmitted to the server using the communication between the wired / wireless transceivers, one of the two neighboring wireless signal search requests, A unique identification ID and a signal strength of the latter are measured from the former by an identification ID radio transmission request, alternately requested, and the latter is used to measure the unique ID and signal strength of the former. do.

When the tag / wireless transceiver receives the tag wireless search request from the server, the wired / wireless transceiver enters the tag search mode, enters the search range of the wireless tag, and transmits the tag information and the tag signal strength measurement value, To a location tracking service system according to the present invention.

The portable terminal enters the tag search mode and then enters the search range and transmits the received tag information and the tag signal strength measurement value to the server when the search event occurs. Other features.

Wireless transceiver is a wireless transceiver, and at least one wired / wireless router is further provided between the wired / wireless transceiver and the server to relay the wired / wireless communication, and the portable terminal is connected to the at least one wired / The present invention provides another feature of the location tracking service system according to the present invention.

The wired / wireless router has an access point function as another feature of the location tracking service system according to the present invention.

The present invention can be configured to include a smart bidirectional wired / wireless transceiver, a wireless tag, a server, and a portable terminal, thereby precisely tracking a location without a shadow area, setting new information in a tag through a server or a portable terminal, So that the service can be provided without burdening the communication cost.

1 is a schematic configuration diagram of a location tracking service system using a smart bidirectional wireless tag according to an embodiment of the present invention.
2 is a block diagram of a smart two-way radio tag in a location tracking service system according to an embodiment of the present invention.
3 is a block diagram of a smart bidirectional UWB transceiver of a location tracking service system in accordance with an embodiment of the present invention.
4 is a state diagram illustrating a state of use of a location tracking service system according to an embodiment of the present invention.
5 is a block diagram illustrating a method for encrypting security-related services between a wireless tag and a server in a location tracking service system according to an embodiment of the present invention.
FIG. 6 is a flowchart illustrating an exemplary procedure for setting a wireless tag through a server or a mobile terminal of a location tracking service system according to an exemplary embodiment of the present invention. Referring to FIG.
7 and 11 are flowcharts illustrating a server operation of the location tracking service system according to an embodiment of the present invention.
FIG. 8 is a flowchart illustrating an operation sequence according to time between neighboring wired / wireless transceivers in a location tracking service system according to an exemplary embodiment of the present invention. Referring to FIG.
FIG. 9 is a flowchart illustrating an operation sequence according to time between a wired / wireless transceiver and a wireless tag in a location tracking service system according to an embodiment of the present invention.
FIG. 10 is a flowchart illustrating an operation sequence according to time between a portable terminal and a wireless tag in a location tracking service system according to an embodiment of the present invention.
12 is a flowchart illustrating an operation of a wired / wireless transceiver of a location tracking service system according to an embodiment of the present invention.
13 is a flowchart illustrating a radio tag operation of a location tracking service system according to an embodiment of the present invention.
FIG. 14 is a flowchart illustrating an operation of a mobile terminal of a location tracking service system according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

As shown in FIG. 1, a location tracking service system according to an embodiment of the present invention includes a smart bidirectional wireless tag 100 attached to a person or a moving object to transmit and receive a wireless signal; Two or more smart bidirectional U / R transceivers (200a, 200b, 200c, 200d) for performing radio communication with the radio tag and peripheral communication devices and measuring the strength of a radio signal and transmitting and receiving predetermined information; And a smart interworking server (400) for providing the tag information to the portable terminal (400) that performs wire / wireless communication with the wired / wireless transceiver and tracks the location of the wireless tag, transmits and receives the information, The portable terminal 400 includes a wireless transceiver (for example, 200c and 200d based on 200c), and the peripheral communication device includes a neighboring wireless transceiver of the wireless transceiver Wireless communication with the wireless tag 100 and the wired / wireless transceivers 200b and 200d, and requests a new event or receives the tag information from the wireless tag.

Here, the wired / wireless transceiver 200a, 200b, 200c, 200d may be connected to the server 300 either independently or through a neighboring transceiver, but may be a wireless transceiver connected wirelessly as shown in FIG. 1, One or more wired / wireless routers 500 are further provided between one or more of the wired / wireless transceivers (for example, 200a and 200b as shown in FIG. 1) and the server 300 to relay wired / wireless communication between the transceiver and the server . At this time, the portable terminal 400 may also wirelessly communicate with the wired / wireless router 500 to access the server 300, and the wired / wireless router 500 may also function as an access point .

In FIG. 1, reference numeral 10 denotes that some of the transceivers 200c and 200d can be connected to the wired / wireless router 500 by wire.

2, the smart bidirectional wireless tag 100 includes a central control unit 160 and a wireless communication unit 110 and an antenna 130. The wireless communication unit 110 and the antenna 130 are connected to the wireless transceiver 200a, 200b, 200c, 200d and / or the portable terminal 400 in a bidirectional manner (capable of transmitting and receiving). Other configurations may be further provided, but one example is the same as the configuration block of FIG.

As shown in FIG. 3, the smart bidirectional UWB transceivers 200a, 200b, 200c, and 200d may include a central control unit 220 to control the smart bidirectional UWB wireless transmitters / receivers 200a, 200b, Wireless communication with the server 300, the wired / wireless router 500, and / or the portable terminal 400 by bidirectional communication (that is, transmission and reception is possible) It can be said. Other configurations may be further provided, but one example is the same as the configuration block of FIG.

4 is a state diagram illustrating a state of use of a location tracking service system according to an embodiment of the present invention. The wireless bidirectional U / W transceiver 200a, 200b, 200c (200a, 200b, 200c, 200b, 200c, 200c, 200c, Wireless transceiver 200 and wireless communication between the wired / wireless transceiver 200 and the wired / wireless router 500 through the wired / wireless communication between the wired / wireless transceiver 200 and the wired / The location tracking service of the tag 100 can be performed.

5 is a block diagram showing an example of encrypting the security-related service information of the wireless tag 100 in the location tracking service system according to an embodiment of the present invention and sending it to the server 300 through the wired / wireless transceiver 200 to be. In this case, the radio tag 100 transmits its own unique identification key to the tag information, and transmits the encrypted data to the wired / wireless transceiver 200 by using the embedded encryption algorithm to transmit the encrypted data to the wired / wireless transceiver 200 The server 300 can securely transmit the tag information to the server 300 without decoding the tag information.

6 is a flowchart illustrating an exemplary procedure for setting the wireless tag 100 through the server 300 or the portable terminal 400 of the location tracking service system according to an embodiment of the present invention. (S110), the transmission signal intensity setting (S120), the call button operation setting (S130), the registration of the transmission signal intensity setting (S130) The standby power cutoff mode entry time setting (S140), and the call event signal transmission duration setting step (S150).

At this time, the wireless tag 100 adds the event information to the encrypted wireless transmission data of the call event or various service events, and transmits the wireless tag 100 with the tag state information (unique ID, wireless power intensity, battery remaining amount, It is preferable to let it out. Thus, when the encrypted wireless transmission data is transmitted to the wired / wireless transceiver 200 and the portable terminal 400, the encrypted wireless transmission data can be transmitted without pairing. Thus, the wireless tag of the two or more wired / wireless transceivers 200 The wireless signal of the wireless tag 100 can be transmitted to the server 300 safely and quickly regardless of whether the wireless tag 100 is in the wireless communication range.

In other words, a plurality of two or more wired / wireless transceivers 200 execute and maintain an operation for discovery of information within a wireless communication range, and when the wireless tag 100 is searched, And transmits the collected information to the server 300. At this time, the information to be advertised in the wireless tag 100 is encrypted and includes the unique ID of the wireless tag, the wireless power intensity, the battery remaining amount, the calling event, various service unique IDs, and the like .

7 is a flowchart illustrating an operation of the server 300 in the location tracking service system according to an embodiment of the present invention. According to this, the server 300 basically determines whether the tag information found from the transceiver 200 or the portable terminal 400 exists (S210). If the tag information is found, the server 300 decodes the tag information using the unique identification key (S230). If the tag is a registered tag, information on the received tag is classified (S240). Then, a tag position is displayed from the received tag information, and new information after processing the requested service (S250), the update DB data is transmitted to the portable terminal 400 (S260), and the process returns to the step S210 of determining the presence or absence of the detected tag information (S210).

If the tag is not a registered tag in the DB, a service provision and information setting request is made to the tag (S270), the unique ID of the tag, the service provided and the set information are registered in the DB (S280) And returns to the step S210 of judging.

FIG. 8 is a flowchart illustrating an operation sequence according to time between neighboring wired / wireless transceivers 200a and 200b in a location tracking service system according to an exemplary embodiment of the present invention.

This is an example of an operation sequence according to the time when the wired / wireless transceivers 200a and 200b receive the wireless signal strength measurement request between the wired / wireless transceivers from the server 300, and basically performs the following operation .

When a unique identification ID and signal strength measurement data for each of the wired / wireless transceivers 200 (200a, 200b) are requested, the server 300 uses the communication between the wired / wireless transceiver 200 One of the two neighbors 200a and 200b requests a wireless signal search request and the other 200b makes a request for wireless ID transmission of its own unique ID so that the former 200b And the signal strength of the electronic 200a are measured and obtained by alternately requesting the latter 200b to measure the unique ID and the signal strength of the former 200a from the latter 200b, , 200b and the signal strength measurement data of the mobile station 200a.

FIG. 9 is a flowchart showing a sequence of operations according to time between the wireless transceiver 200a and 200b and the wireless tag 100 in the location tracking service system according to the embodiment of the present invention.

9, when the wire / wireless transceiver 200a or 200b receives the wireless search request of the wireless tag 100 from the server 300, the wireless tag 100 enters the tag search mode, Enters the search range and transmits the received tag information and the tag signal strength measurement value to the server 300 when a search event occurs. As described above, the reception of the encrypted tag information data transmitted from the wireless tag 100 by the wired / wireless transceivers 200a and 200b and the measurement of the wireless signal strength thereof are performed without coupling with the wireless tag 100. [

However, when receiving a request for information setting from the wired / wireless transceiver 200a or 200b to the wireless tag 100 or a request for transmitting a tag setting information including various service event requests from the server, (100) and a pairing and authentication step.

FIG. 10 is a flowchart showing a sequence of operations according to time between the portable terminal 400 and the wireless tag 100 in the location tracking service system according to an embodiment of the present invention. Here, since the portable terminal 400 performs almost the same functions as the wired / wireless transceivers 200a and 200b in FIG. 9, repeated description thereof will be omitted. However, the portable terminal 400 is different from FIG. 9 in that it is independently driven regardless of the server 300, that is, it is directly driven by the user without requesting a tag wireless search from the server.

FIG. 11 is a flowchart illustrating an operation of the server 300 in the location tracking service system according to an embodiment of the present invention, as in FIG. According to this, the server 300 determines whether there is a radio signal strength measurement request between the transceiver 200 and the manager (S212). If there is the intensity measurement request, the server 300 performs the process of FIG. 8 for the transceiver requested by the manager Next, in operation S214, the portable terminal 400 operates in the flowchart shown in FIG. 7 (S200), and determines whether there is a tag information DB update request in the portable terminal 400 (S216). If there is a tag information DB update request from the portable terminal 400, it is determined whether the tag information DB is new (S218). If the tag information DB update request is new, the new tag information DB is registered in the new tag information DB (S219). Otherwise, The flow returns to step S200 of operating as a flowchart.

From the unique ID and signal strength measurement data, the information of the radio tag, and the signal strength measurement data for each of the wired / wireless transceiver 200 obtained through the above-described process, the server 300 determines the position of the specific wireless tag 100 . The method of tracking the position of the specific radio tag 100 from the data and the information of the radio tag may vary, but it is preferable that the tracking is performed as described below.

That is, the server 300 finds two wired / wireless transceivers (for example, 200a and 200b) close to the wireless tag 100 from the unique ID and signal strength measurement data for each wired / wireless transceiver 200 Wireless transceivers 200a and 200b and the wireless signal strength measurement data from the information of the wireless tag 100 and the signal strength measurement data obtained by the two wireless transceivers 200a and 200b, The second line segment and the third line segment connecting the tag 100 and the angle between the first line segment and the second line segment or the third line segment and the length of the second line segment or the third line segment, 100). ≪ / RTI >

A method for finding two wireless transceivers 200a and 200b near the wireless tag 100 is to detect the strength of the wireless signal transmitted from the wireless tag 100 from the wireless transceiver 200 in real time , The most strongly detected transceiver and the next largest detected transceiver.

The length of the second line segment or the third line segment may be set such that the strength of the radio signal of the radio tag 100 sensed by the two radio transceivers 200a and 200b is reduced according to the propagation distance And calculating the distance between the two wired / wireless transceivers 200a and 200b and the wireless tag 100, respectively.

FIG. 12 is a flowchart illustrating an operation of a wired / wireless transceiver 200 of a location tracking service system according to an embodiment of the present invention. In this case, the wired / wireless transceiver 200 determines whether the data is received from the server 300 (S310). If the data is received, the wired / wireless transceiver 200 determines whether it is a tag information setting request (S320) 9 is performed (S330), and the process returns to the step of receiving data from the server (S310). If the request is not a tag information setting request, it is determined whether a tag and a transceiver search request are requested (S340). If the request is a request for the tag and a transceiver search, a tag and a transceiver search mode are entered (S350). If it is not the search request, it is determined whether it is a transmission / reception period radio signal strength measurement request (S360). If the request is a request for the transmission / reception period measurement, the procedure of FIG. 8 is performed (S370). Conversely, when receiving data from a tag other than the server or neighboring transceiver (S380), the measured radio signal strength measurement result and the tag / transceiver information are transmitted to the server (S390) for bidirectional communication.

13 is a flowchart illustrating the operation of the wireless tag 100 of the location tracking service system according to an embodiment of the present invention. In this case, the wireless tag 100 adds the corresponding event information to the wireless transmission data (S412, S422). If the event information is included in the wireless transmission data (S412, S422) The encrypted and encrypted data is wirelessly transmitted at a set cycle (S424). If it is determined that there is a pairing request for receiving a signal from the wired / wireless transceiver 200 and / or the portable terminal 400 in operation S430, the mobile terminal 400 performs a pairing operation when there is a pairing request in operation S440. / Completion message is transmitted to the portable terminal (S442). Then, it is determined whether the authentication key is received from the wired / wireless transceiver 200 and / or the portable terminal 400 in step S450. If the authentication key is received, the authentication key is decrypted in step S452. If it is valid, the authentication completion message is transmitted to the paired transceiver / portable terminal (S462). It is determined whether or not a signal received from the wired / wireless transceiver 200 and / or the portable terminal 400 is an information setting request of the wireless tag 100 (S470). If the signal is an information setting request, 100) (S472). If the received signal is not an information setting request of the wireless tag 100, it is determined whether it is a request for generating various service events such as a call or an alarm (S480). If the received signal is the request, various service event generating operations (S482), and performs bidirectional communication as described above.

Accordingly, when the wireless tag 100 receives a wireless signal from a predetermined one of the wireless transceiver 200 or receives an alarm operation request signal from the server 300 or the portable terminal 400, the wireless tag 100 transmits an alarm signal As shown in FIG. By doing so, when the wireless tag 100 departs or intrudes within a specific area, an alarm signal is generated and information is transmitted to the server 300 to provide a notification service to the security manager, thereby enhancing security.

Finally, FIG. 14 is a flowchart illustrating the operation of the portable terminal of the location tracking service system according to an embodiment of the present invention. The portable terminal 400 determines whether or not the server is connected (S510). If the connection is established, the portable terminal 400 downloads the server operation map and DB data from the server 300 (S512), enters the tag and transceiver search mode (S514) Receives a signal from the transceiver. If it is an event request, a corresponding tag to be requested for a call and an alarm event is searched (S522). If the tag is searched (S530), it is determined whether a service event such as a call and an alarm is requested After the authentication is completed, a service event such as a call and an alarm is requested (S532). If the corresponding tag search is not searched, a message indicating that it is not in the search range is displayed as a message (S534). If it is not the event request, it is determined whether to receive the tag data from the tag or the transceiver (S540). If the tag data or the event data is not received, the updated map and DB data are downloaded (S544) Directional communication as shown in FIG.

100: Wireless tag
200a, 200b, 200c, 200c, 200d: wired / wireless transceiver
300: server
400: portable terminal
500: wired / wireless router

Claims (10)

delete A smart bidirectional wireless tag attached to a person or a moving object to transmit and receive wireless signals;
At least two smart two-way wired / wireless transceivers for wirelessly communicating with the wireless tag and the peripheral communication device and measuring the strength of the wireless signal and transmitting and receiving predetermined information; And
And a smart interworking server that performs wire / wireless communication with the wired / wireless transceiver and tracks the location of the wireless tag, transmits and receives the information, stores the tag information in a database as a tag information, and provides the tag information to a portable terminal ,
Wherein the peripheral communication device includes a neighboring wired / wireless transceiver among the wired / wireless transceivers,
Wherein the portable terminal is in direct wireless communication with the wireless tag and the wireless transceiver to request a new event or receive the tag information from the wireless tag,
Wherein the wireless tag generates an alarm signal when receiving a wireless signal from a predetermined one of the wired / wireless transceivers or receiving an alarm operation request signal from the server or the portable terminal.
A smart bidirectional wireless tag attached to a person or a moving object to transmit and receive wireless signals;
At least two smart two-way wired / wireless transceivers for wirelessly communicating with the wireless tag and the peripheral communication device and measuring the strength of the wireless signal and transmitting and receiving predetermined information; And
And a smart interworking server that performs wire / wireless communication with the wired / wireless transceiver and tracks the location of the wireless tag, transmits and receives the information, stores the tag information in a database as a tag information, and provides the tag information to a portable terminal ,
Wherein the peripheral communication device includes a neighboring wired / wireless transceiver among the wired / wireless transceivers,
Wherein the portable terminal is in direct wireless communication with the wireless tag and the wireless transceiver to request a new event or receive the tag information from the wireless tag,
Wherein the wireless tag adds call event or service event to the wireless transmission data, adds the event information, encrypts the event information together with the tag state information, and wirelessly transmits the wireless event event at a predetermined cycle.
The method of claim 3,
The wireless tag transmits the encrypted wireless transmission data to the wired / wireless transceiver and the portable terminal without pairing. When the wireless tag receives the information setting request from the wired / wireless transceiver or the portable terminal or receives various event requests And a pairing and authentication step is carried out.
5. The method according to any one of claims 2 to 4,
The server finds a first line segment by finding and connecting two wired / wireless transceivers that are close to the wireless tag from the unique ID and signal strength measurement data for each of the wired / wireless transceivers, A second line segment and a third line segment connecting the two wireless transceivers and the wireless tag are obtained from the information of the wireless tag and the signal strength measurement data obtained from the first line segment and the third line segment, And the position of the wireless tag is tracked by the length of the second line segment or the third line segment.
6. The method of claim 5,
The unique ID and signal strength measurement data for each of the wired / wireless transceivers are transmitted to the server using the communication between the wired / wireless transceivers, one of the two neighboring wireless signal search requests, Wherein the identification ID and the signal strength of the latter are measured from the former by an identification ID wireless transmission request, alternately requested, and the latter is used to measure the unique ID and signal strength of the former.
6. The method of claim 5,
When the tag / wireless transceiver receives the tag wireless search request from the server, the wired / wireless transceiver enters the tag search mode, enters the search range of the wireless tag, and transmits the tag information and the tag signal strength measurement value, To a location tracking service system.
6. The method of claim 5,
Wherein the portable terminal enters the tag search mode, and the wireless tag enters the search range, and transmits the received tag information and the tag signal strength measurement value to the server when a search event occurs.
6. The method of claim 5,
Wherein the wired / wireless transceiver is a wireless transceiver,
Wherein at least one wired / wireless router is further provided between the wired / wireless transceiver and the server to relay the wired / wireless communication,
Wherein the portable terminal wirelessly communicates with the at least one wired / wireless router.
10. The method of claim 9,
Wherein the wired / wireless router has an access point function.

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