KR100433467B1 - Method and appratus for persuing movable thing through ad - hoc wireless network - Google Patents

Abstract

The present invention relates to a method and apparatus for tracking a location of a mobile object using a temporary radio network. The method and apparatus according to the present invention receive a terminal information signal transmitted from a terminal through an ad-hoc, receive a location information signal of a management device itself from a GPS satellite, and receive the received terminal information signal and Demodulates a management device location information signal, modulates the demodulated composite signal into a communication composite signal that can be used in a communication module, and transmits the communication composite signal to the position control device. The position control device is configured to receive information of the terminal and the management device to display the position of the terminal and the moving object information on a three-dimensional digital electronic map.

Description

METHOD AND APPRATUS FOR PERSUING MOVABLE THING THROUGH AD-HOC WIRELESS NETWORK}

The present invention relates to a method and apparatus for tracking a location of a mobile object using a temporary radio network.

Recently, the use of Global Positioning System (GPS) receivers has been spreading to various fields at home and abroad. There are also various developments in the field of application of receivers. In addition, corresponding to the development of the GPS receiver, the system using it is evolving differently every day. As a result, the use of a location tracking system using a GPS receiver occupies an indispensable location for defense and civilian use.

For example, the location tracking system is used for personal or industrial use such as GPS car navigation system, navigation system in ship and aviation field, geographic survey, etc. Is also being developed.

This location tracking system will be described in detail with reference to FIG. 1.

1 is a schematic configuration diagram of a conventional location tracking system. Referring to FIG. 1, the conventional location tracking system is composed of a GPS receiver 120, a repeater 140, and a position control device 160.

The GPS receiver 120 checks the position of the mobile body carrying the receiver.

The repeater 140 receives a signal including information on the position of the moving object identified by the GPS receiver 120 and transmits the signal to the position control device 160 again.

The position control device 160 mainly uses a computer equipped with a Geographical Information System (GIS). The position control device 160 receives a signal from the repeater 140 and visually expresses the signal on the digital electronic map. As a result, the control station equipped with the position control device 160 can identify and track the position of the moving object carrying the receiver.

At this time, the method of using the repeater 140 to identify and track the location includes a method using a public communication network and a method using a satellite network. Here, the method using the public communication network is a method of transmitting the position information transmitted from the GPS receiver 120 to the position control device using cellular, PCS, TRS, and the like. In addition, the method using the satellite network transmits the position information transmitted from the receiver 120 to the position control device using the INMARSAT, the mobile satellite network for the search structure in the sea or air disaster (COSPAS-SARSAT), etc. That's how.

However, the method using the public communication network cannot configure the public communication network on a specific land and sea. As a result, many areas do not have access to public networks. Moreover, in mountainous and maritime areas where most radio waves are poorly connected, public networks are frequently disconnected. In addition, when using a public communication network to track the position of the moving object there is a problem that must be connected to the communication network every time.

In addition, the public network may not be able to secure a channel for disaster tracking or search activities for emergency personnel who need to use the public network in the rescue operation area when the traffic volume is congested.

In addition, if a location tracking system is used for the defense service, the public communication network is the target of the main attack of the enemy. As a result, it is difficult to guarantee the viability of the communication network and the reliability is low. In addition, the public communication network is not established in the majority of the active areas, and the mobility of the location tracking device must be guaranteed from time to time in the work, but the public communication network uses a fixed repeater, so mobility is not guaranteed.

There is a method using a satellite network using the EPIRB (Emergency Position Indicating Radio Beacon) system by the COSPAS-SARSAT or INMARSAT system. However, satellite networks cannot be used or applied independently. Therefore, the flexibility and reliability of the communication network is low. Therefore, satellite networks are less efficient (economical or technical) than global location tracking.

Accordingly, the present invention has been made to solve the problems of the prior art, and transmits the GPS information of the mobile device having a terminal to the position control device by using an ad hoc wireless network without using a public communication network. The purpose is to effectively provide the position information of the moving object.

In addition, another object of the present invention is to receive the location information of the mobile device having the terminal and the location information of the management device, respectively, and transmits to the location control device through the management device, the current location of the terminal, the distance between the terminal and the management device, management The present invention provides a method and apparatus for real-time analysis and processing of moving object information, such as the orientation of a terminal and the moving speed of the terminal.

In addition, another object of the present invention is to provide a method and apparatus that can effectively provide the control station with the relevant information, such as belonging, name, mission of the mobile object through the analysis of the unique identifier for each mobile vehicle having a terminal.

1 is a schematic configuration diagram of a conventional position tracking system.

2 is a schematic configuration diagram of a location tracking system using a temporary wireless network according to the present invention;

3 is a block diagram of a terminal possessed by a mobile device according to the present invention;

4 is a configuration diagram of a management device and a position control device for receiving and analyzing a terminal information signal transmitted from a terminal according to the present invention.

5 is an exemplary view showing the mobility of the management device and the position control device.

6 is a flowchart illustrating a method for tracking a position of a mobile object by a temporary radio network according to the present invention.

Figure 7 is an embodiment for measuring and controlling the position of the terminal and the management device on the three-dimensional digital electronic map of the position control device according to the present invention.

<Explanation of symbols for the main parts of the drawings>

200a, ..., 200n: terminal

240: management device 260: position control device

310: GPS receiver antenna of the terminal 320: GPS receiver of the terminal

330: digital modulator 340: controller

350: RF transmitter 360: terminal antenna

410: omni-directional antenna 420: RF receiver

430: GPS receiver antenna of the management device

440: GPS receiver of the management device

450: signal processor 460: controller

470: communication module 520: CPU

540: 3D MAP DB

According to a first aspect of the present invention for achieving the above object, in the method for tracking the position of at least one mobile unit having a terminal in the management device that can communicate with the position control device, Receiving a terminal information signal transmitted from the terminal; Receiving a management device location information signal from a GPS satellite; Demodulating the received terminal information signal and the management device location information signal to generate a composite signal; Modulating the signal into a communication composite signal that can be used for communication; And transmitting the composite signal for communication to the position control device, wherein the position control device receives the composite signal for communication to measure and control the position of the mobile body. A location tracking method and system are provided.

The temporary wireless network may be a communication network configured through a wireless modem, and the terminal information signal may include location information of a mobile device having the terminal and a unique identifier of the terminal. Provided are a method and a system for tracking a position of a mobile object using a temporary radio network, which uses time division multiple access (TDMA) when transmitting terminal information signals.

In addition, the position control device includes a three-dimensional digital electronic map database and can be moved, the position control device receives the communication composite signal to measure and control the position of the moving object is the received communication composite signal The location information of the terminal and the location information of the management device are displayed on the 3D digital electronic map using the location information of the terminal and the location information of the management device, and the mobile navigation information is displayed on the location control device. Provided is a method and a system for tracking a location of a mobile object using a temporary wireless network, wherein the unique location information of the mobile station is displayed on the location control device.

The mobile unit specific information may include at least one of an ID, a name, affiliation, and a duty of the mobile unit, and the mobile unit search information may be based on a current location of the terminal, a distance from the management device to the terminal, and the management device. At least one of the orientation of the terminal, the speed information of the terminal, and the management device is provided with a method and system for tracking the position of a mobile object using a temporary radio network.

According to a second aspect of the present invention, an apparatus for tracking the position of a mobile body having a terminal in combination with a position control device, comprising: an RF receiver for receiving and demodulating a terminal information signal transmitted from the terminal via a temporary wireless network; A GPS receiver for receiving and demodulating a management device location information signal; A control unit controlling the demodulated signal generated by the demodulation; A signal processor configured to modulate the generated composite signal into a communication composite signal that can be used for communication under the control of the controller; And a communication module for transmitting the modulated communication composite signal to a position control device, wherein the position control device receives the communication composite signal to measure and control the position of a mobile body having the terminal. Provided is a device for tracking the position of a moving object using a network.

In addition, the communication module uses the RS-232C protocol, the GPS receiver is

Provided is a device for tracking the position of a mobile object using a temporary radio network, characterized in that it calculates its position by receiving signals from GPS satellites located above the earth.

According to a third aspect of the present invention, there is provided a method of tracking a position of a mobile object having a terminal in a position control device having a three-dimensional digital electronic map database coupled with a management device, wherein the composite signal for communication from the management device Receive a signal, display a location on the three-dimensional digital electronic map using the communication composite signal, measure the mobile specific information and the mobile navigation information using the communication composite signal, and measure the measured mobile unique information and the mobile search And displaying information, wherein the complex signal for communication is a complex signal that can be used for communication, the terminal information signal transmitted from the terminal to the management device through a temporary wireless network and the management device location information signal of the management device. Position of the mobile object using a temporary radio network, characterized in that it comprises a A tracking method and system and corresponding apparatus are provided.

Hereinafter, with reference to the accompanying drawings, a preferred embodiment of a method and apparatus for tracking the position of a moving object using a temporary radio network according to the present invention will be described in detail.

2 is a schematic configuration diagram of a location tracking system using a temporary wireless network according to the present invention. Referring to FIG. 2, the location tracking system according to the present invention includes a terminal 220, a management device 240, and a location control device 260.

The terminal 220 is extremely small and can be used by low power, and re-processes the location information received from the GPS to the wireless modem by reprocessing the terminal.

The management device 240 receives based on the terminal location information received from the terminal 220 and its GPS location information. The received signal is demodulated and modulated into a composite signal for communication that can be used for communication.

The position control device 260 generally uses a computer and operates based on digital electronic mapping. The position control device 260 is configured such that the position of the moving object is represented on the three-dimensional digital electronic map. In addition, assuming that there are a large number of terminals, the position control device 260 grasps a unique identifier of the terminal and displays each moving object information in real time.

The mobile body information is composed of mobile body navigation information and mobile body specific information. The mobile unique information is information included in the unique identifier, such as the ID, name, affiliation, mission of the mobile. The moving object search information is the current position of the terminal, the distance from the management apparatus to the terminal, the orientation of the terminal based on the management apparatus, speed information of the terminal, and the like.

The network configuration uses a temporary wireless network. The temporary radio network 280 is a communication network configured through a wireless modem according to a user's needs without using a repeater such as a public communication network or a satellite network. When using a single temporary wireless network, there is a limit to the temporary wireless network coverage (280), but by configuring the temporary wireless network overlapping, it is possible to expand the temporary wireless network coverage (280) to a national scale. In addition, even if a single temporary wireless network is used, the temporary wireless network coverage 280 may be expanded by adjusting the frequency and transmission power of the terminal.

On the basis of the above description will be described in more detail with respect to the method / device for tracking the position of the mobile object using the temporary radio network according to the present invention.

First, the configuration diagram of the terminal, the management device and the position control device will be described in detail.

3 is a block diagram of a terminal possessed by a mobile according to the present invention. Referring to FIG. 3, the terminal includes a GPS receiver antenna 310, a GPS receiver 320, a digital modulator 330, a controller 340, an RF transmitter 350, and a terminal antenna 360.

The GPS receiver antenna 310 receives a GPS satellite signal (hereinafter, referred to as a terminal location information signal) of a mobile body having a terminal. The GPS terminal information signal is a signal generated from a GPS satellite located about 20,000 km over the earth. The receiver antenna 310 transmits the terminal location information signal to the GPS receiver 320 through a low noise amplifier (LNA) built in the GPS receiver antenna 310.

The GPS receiver 320 receives a terminal location information signal transmitted from the GPS receiver antenna 310 and calculates its own location. In addition, the GPS receiver 320 converts the terminal location information signal into a hexadecimal code (HEX code) suitable for processing by the digital modulator 350.

The control device 340 assigns a terminal-specific unique identifier (ID) to the converted terminal location information signal. The control device 340 also adds code for error correction (FEC) and performs time division multiple access (TDMA) processing. In addition, the processed signal (hereinafter referred to as a terminal information signal) is controlled to be transmitted from the GPS receiver 320 to the digital modulator 330. Here, time division multiple access processing is for enabling a large number of terminals to be connected by a single frequency band.

The digital modulator 330 receives the terminal information signal transmitted from the GPS receiver 320, modulates the signal into a signal capable of radio wave radiation, and transmits the signal to the RF transmitter 350. That is, the digital modulator 330 amplifies the terminal information signal into a high frequency signal so as to radiate radio waves, and then transmits the signal from the RF transmitter 350.

The RF transmitter 350 receives a terminal transmission signal modulated by the digital modulator 330. The RF transmitter 350 propagates and radiates the signal into space through the terminal antenna 360. At this time, the transmission frequency is determined by the phase controlled oscillator (PLL). In addition, when the RF transmitter 350 propagates and radiates a terminal information signal to a space, the RF transmitter 350 is controlled by the controller 340 for a time-division multiple access method for multiple access of multiple terminals. Only radio waves will radiate.

4 is a configuration diagram of a management device 400 and a position control device 500 for receiving and analyzing a terminal information signal transmitted from a terminal according to the present invention.

Referring to FIG. 4, the management device 400 includes an omnidirectional antenna 410, an RF receiver 420, an antenna for a GPS receiver 430, a GPS receiver 440, a signal processor 450, and a controller 460. , The communication module 470, and the position control device 500 includes a CPU 520 and a three-dimensional digital electronic map database (3D MAP DB) 540.

The terminal information signal emitted from the terminal through the terminal antenna 360 is received by the RF receiver 420 through the omni directional antenna 410 installed outside the management apparatus 400. At this time, the RF receiver 420 demodulates the received terminal information signal. The RF receiver 420 transmits the demodulated terminal information signal to the signal processor 450.

Apart from the GPS receiver antenna 310 and the GPS receiver 320 of the terminal described above, the GPS receiver antenna 430 may use the GPS satellites as the location information signal (hereinafter referred to as the management device location information signal) of the management device 400 itself. Receive from. The GPS receiver antenna 430 transmits the management device location information signal to the GPS receiver 440.

The GPS receiver 440 demodulates the management device location information signal received from the GPS receiver antenna 430. The demodulated management device position information signal is transmitted to the signal processor 450.

The signal processor 450 receives a complex signal generated by each demodulation under the control of the controller 460. The signal processor 450 modulates the composite signal for communication that can be used for communication with the position control apparatus 500.

The modulated communication composite signal is communicated with the GIS-based position control device 500 having a three-dimensional digital electronic map database through the communication module 470. At this time, the signal transmission and reception of the management device 400 and the position control device 500 is generally connected to the RS-232C protocol.

The position control device 500 is composed of a CPU 520 and a three-dimensional digital electronic map database (3D MAP DB) 540.

The CPU 520 receives terminal information and location information of the management device itself from the communication-processed composite signal. The CPU 520 accurately displays the location of the terminal and the location of the management device on the 3D digital electronic map using the terminal location information and the management device location information among the terminal information. In addition, the CPU 520 measures the position information (longitude and latitude coordinates) of the terminal and the management apparatus using the above information. As a result, the CPU 520 provides the moving object search information regarding the separation distance, the orientation, the speed, and the like to the control station through the display unit included in the position control apparatus.

In addition, the CPU 520 provides mobile station specific information such as ID, name, affiliation, and mission of the mobile unit to the control station through the display unit included in the position control apparatus by using the unique identifier included in the terminal information signal.

The control station tracks the position of the terminal through the position control device. In the present invention, since the position control device is mobile, the control station can also move from time to time.

5 is an exemplary view showing the mobility of the management device and the position control device.

Referring to FIG. 5, it is assumed in FIG. 5 that a mobile body having a terminal has moved from region A 600 to region B 610.

When the mobile unit having the terminal 640a is located in the region A 600, the terminal 640a is included in the coverage of the temporary radio network 670a based on the location of the management apparatus 650a in the region B 610. do. As a result, the terminal information signal of the terminal 640a is transmitted to the management device 650a. Therefore, the location control device 660a in the area B 610 can track the location of the terminal 640a.

However, when the mobile body having the terminal 640b moves to the C region 620, the terminal 640b is located in the coverage of the temporary wireless network 670a based on the location of the management apparatus 650a in the B region 610. not included. As a result, the terminal information signal of the terminal 640b is not transmitted to the management device 650a. Therefore, the location control device 660a in the area B 610 cannot track the location of the terminal 640b.

The management device 650a is also mobile and can move to region D 630. When the management device 650a moves to the area D 630, the temporary wireless network coverage 670a in the area B 610 is based on the location of the management device 650b. The coverage 670b.

As a result, the mobile unit having the terminal 640b in the C region 620 is included in the temporary wireless network coverage 670b. The terminal information signal of the terminal 640b can be transmitted to the management device 650b. Therefore, the position control device 660b may track the position of the terminal 640b through the terminal information signal.

Conventional repeaters are complicated because they are not only for tracking the position of the moving object but are for telecommunication. As a result, the conventional repeater uses a lot of power. Therefore, the conventional repeater is difficult to move.

However, the management apparatus using the temporary radio network as described above has mobility unlike the base station of the mobile telephone network or the TRS network, which is a conventional repeater. That is, the management apparatus has a simple configuration and can be miniaturized. As a result, it uses less power, making it convenient to carry and portable.

As such, the mobility of the management device maximizes the security and survivability of the ad hoc wireless network. Public networks are difficult to secure for the people who manage and maintain them. In other words, if the management staff is mindful, they can destroy or destroy all information at any time. In addition, when an exhibition situation occurs, it is difficult to maintain a communication network because most communication networks are the first to be hit. Moreover, the public telecommunication network, which is a repeater, causes a failure of the location tracking system even if only a few base station failures occur. Also, the public telecommunication network does not operate when the switching center fails.

For example, when a war breaks out, it is almost impossible to transmit and receive information by the fixed base station and the switching center.

However, the management apparatus according to the present invention has a function of a base station and a switching center. The management apparatus has a portable structure and can be moved and operated anywhere at any time.

Also, the position control device 660a in the region B 610 may move to the position control device 660b in the region D 630. That is, the position control device is a computer generally composed of a three-dimensional digital electronic map database and a CPU as described above, and is easily managed when a mobile notebook or PDA is used among the types of computers such as a desktop, a notebook, and a PDA. It can move with the device or separately from the management device.

Hereinafter, a method of tracking the position of a mobile object using a temporary wireless network according to the present invention will be described in detail. 6 is a flowchart illustrating a method for tracking a location of a moving object using a temporary wireless network according to the present invention.

Referring to FIG. 6, first, the terminal 700 receives the location information signal of the terminal in step S10. In addition, a unique identifier corresponding to the terminal is assigned to the terminal location information signal received in step S20. In addition, the terminal 700 performs time division multiple access processing after adding a code for error correction (FEC).

In step S30, the terminal 700 modulates the terminal information signal that has passed through the step S20. In operation S40, the terminal 700 transmits a terminal information signal to the management apparatus 720 by a time division multiplexing method.

In operation S50, the management device 720 receives a management device location information signal. In operation S60, the management device 720 demodulates the management device location information signal received in step S50 and the terminal information signal received from the terminal 700. In operation S70, the management device 720 modulates the composite signal generated by the demodulation into a communication composite signal that can be used for communication.

In operation S80, the management apparatus 720 transmits a modulated communication composite signal to the position control apparatus 740.

In operation S80, the location control device 740 measures and controls the location of the terminal 700 and the management device 720 on the 3D digital electronic map using the received communication composite signal.

7 is an embodiment in which the position of the terminal and the management device are measured and controlled on a three-dimensional digital electronic map of the position control device according to the present invention.

Referring to FIG. 7, reference numeral 800 denotes a management device and reference numerals 810a, 810b, and 810c denote a mobile body having a terminal.

FIG. 7 assumes a case where the management device location information of the management device with reference number 800 and the terminal information of the terminal with reference number 810a among the terminals are displayed on a three-dimensional digital electronic map.

As shown in FIG. 7, the latitude 820 and the longitude 830 of the terminal including the terminal location information and the management device location information, and the latitude and longitude of the management device are displayed on the 3D digital digital map. In addition, moving object search information information including a distance 840 between the terminal and the management apparatus, the orientation 850 of the terminal based on the management apparatus, and the moving speed 860 of the terminal is displayed on the display unit of the position control apparatus.

In addition, the terminal displays unique terminal information, such as ID, affiliation, name, group number, and mission, which distinguishes the terminal, such as reference number 870, from another terminal through a unique identifier in the terminal information on the 3D digital electronic map.

Although the above has been described with reference to a preferred embodiment of the present invention, those skilled in the art to which the present invention pertains without departing from the spirit and scope of the present invention as set forth in the claims below It will be appreciated that modifications and variations can be made.

The method and apparatus for tracking the position of a mobile object using a temporary radio network according to the present invention can solve the difficulty of securing the mobility, security and reliability of a network by a public telecommunication network and a satellite network by using the temporary wireless network in tracking the position of the mobile object. It can be effective.

In addition, the present invention can efficiently reduce the cost of location tracking operations in the mountain and offshore areas where the communication environment, which is the majority of disaster relief activities such as natural disasters, in poor mountain and marine areas, without the complicated process such as public communication network It also works.

In addition, the present invention in the defense service, the night search and combat personnel, the location of the movement of the mobile vehicle is represented on the three-dimensional digital electronic map in real time in the control station, so that it can immediately respond to the sudden or abnormal situation, and possess a terminal Since the location of a moving object can be accurately known, the improvement of related tasks can be expected.

In addition, since the present invention ensures mobility between the mobile terminal and the management device, when carrying the management device and tracking the location of the mobile device, the management device can relatively check the current position, distance, orientation, speed, etc. of the mobile device in real time. Accurately locate locations in the shortest possible time, allowing the dispatch of rescue teams or support personnel quickly, resulting in significant time savings for lifesaving activities.

Claims (33)

delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete A method for tracking the position of a moving object with a terminal in a position control device having a three-dimensional digital electronic map database coupled with a management device, Receiving a composite signal for communication from the mobile management device; Displaying a location on the three-dimensional digital electronic map using the communication composite signal; Measuring the mobile unit specific information and the mobile search information using the communication composite signal; And Displaying the measured moving object specific information and moving object search information, wherein the moving object search information includes a current position of the terminal, a distance from the management device to the terminal, an orientation of the terminal based on the management device, At least one of the speed information of the terminal; Including, The position control device is movable, The composite signal for communication is a composite signal that can be used for communication, and includes a terminal information signal transmitted from the terminal to the management device through an ad-hoc wireless network and a management device location information signal of the management device. doing Position tracking method of a mobile object using a temporary radio network, characterized in that. delete The method of claim 21, The mobile specific information is At least one of the ID, name, affiliation, mission of the moving object Position tracking method of a mobile object using a temporary radio network, characterized in that. delete The method of claim 21, The temporary wireless network A network that is configured through a wireless modem Position tracking method of a mobile object using a temporary radio network, characterized in that. The method of claim 21, The terminal information signal is Including location information of a mobile having the terminal and a unique identifier of the terminal. Position tracking method of a mobile object using a temporary radio network, characterized in that. Memory where databases and programs are stored; A processor coupled to the memory to execute the program Including, The processor executes a method for tracking the position of a moving object using the temporary radio network according to any one of claims 21 to 26. Positioning system using a temporary wireless network, characterized in that. A position control device capable of tracking the position of a moving object having a terminal, the position control device being combined with a management device, wherein the position control device has a three-dimensional digital electronic map database; Means for receiving a composite signal for communication from the mobile management device; Means for displaying a location on the three-dimensional digital electronic map using the communication composite signal; Means for measuring said mobile unit specific information and mobile search information using said communication composite signal; And Means for displaying the measured moving object specific information and moving object searching information, wherein the moving object searching information includes a current position of the terminal, a distance from the managing device to the terminal, an orientation of the terminal based on the managing device, At least one of the speed information of the terminal; Including, The position control device is movable, The composite signal for communication is a composite signal that can be used for communication, and includes a terminal information signal transmitted from the terminal to the management device through an ad-hoc wireless network and a management device location information signal of the management device. doing Position tracking device of the moving object using a temporary wireless network, characterized in that. delete The method of claim 28, The mobile specific information is At least one of the ID, name, affiliation, mission of the moving object Position tracking device of the moving object using a temporary wireless network, characterized in that. delete The method of claim 28, The temporary wireless network A network that is configured through a wireless modem Position tracking device of the moving object using a temporary wireless network, characterized in that. The method of claim 28, The terminal information signal is Including location information of a mobile having the terminal and a unique identifier of the terminal. Position tracking device of the moving object using a temporary wireless network, characterized in that.