KR102391899B1 - Vehicle-only signal information collection method for positioning and device therefor - Google Patents

Abstract

The present invention relates to a method for collecting vehicle-only signal information for positioning and a device thereof. The method includes the following steps in which: when a vehicle operates with the vehicle equipped with a vehicle-only signal information collection device, the vehicle-only signal information collection device senses, in real time, signal information and the intensity of the signal transmitted from a base station or repeater of each carrier installed in a predetermined area based on the current location of the vehicle and at preset time intervals; the vehicle-only signal information collection device records the sensed signal information and signal intensity of the carriers in a database to match the sensed signal information and signal intensity of the carriers with the predetermined area; and the vehicle-only signal information collection device assists in a positioning server measuring the location coordinates of a user terminal based on the signal information and signal intensity recorded in the database. According to the present invention, the signal information intensity or the type of the signal information such as LTE, Wi-Fi, and BLE in the predetermined area is sensed for positioning, the signal information for each area is recorded in the database, the current location of the vehicle is measured using GPS, and vehicle motion information is measured using an IMU sensor. As a result, more accurate and precise recording is possible.

Description

Vehicle-only signal information collection method for positioning and device therefor

The present invention relates to a vehicle-only signal information collection method and apparatus for positioning, and more particularly, to measure the exact location of a user who has a user terminal, signals such as LTE, WIFI, BLE, etc. within a predetermined area for positioning By sensing the type of information or the strength of signal information, the signal information for each zone is recorded in the database, and the current position of the vehicle is measured using GPS, and the motion information of the vehicle is measured using the IMU sensor for more accurate information. It relates to a vehicle-specific signal information collection method for positioning, which can be recorded in detail, and in particular, to make the device itself downsized through firmware development, and a device therefor.

In general, when it comes to emergency situations (eg, violent situations, emergency rescue situations, etc.), it is very important for police stations and fire stations to accurately and earlyly secure the current location of a person in need of assistance.

In most cases, when measuring the location, a method of measuring the location of the terminal using GPS has been used.

However, the GPS has a problem that the range of accuracy may be reduced, and positioning may be difficult if indoors.

Accordingly, the present inventor intends to propose a vehicle-specific signal information collection method for positioning and an apparatus therefor.

Domestic Registered Patent Publication No. 10-1915363 (January 15, 2019) Domestic Patent Publication No. 10-2019-0128371 (November 18, 2019)

The present invention has been devised to solve the problems of the prior art, and in order to measure the exact location of a user who has a user terminal, signal information types such as LTE, WIFI, BLE, etc. within a predetermined area for positioning or signal information An object of the present invention is to provide a vehicle-specific signal information collection method for positioning that can sense the strength and record signal information for each zone in a database, and an apparatus therefor.

Another object of the present invention is to collect vehicle-specific signal information for positioning that can record the vehicle's current location using GPS as well as measuring the vehicle's motion information using an IMU sensor to record more accurately and precisely. To provide a method and an apparatus therefor.

Another object of the present invention is to provide a vehicle-specific signal information collection method and apparatus for positioning that can miniaturize a device installed in a vehicle by applying firmware to a PCB in the device.

In addition, the detailed object of the present invention will be clearly grasped and understood by experts or researchers in the technical field through the detailed contents described below.

The vehicle-only signal information collection method for positioning of the present invention for achieving the above object of the present invention is a vehicle-only signal information collection method for collecting signal information for positioning, wherein the vehicle-only signal information collection device in the vehicle When the vehicle is running in the mounted state, the vehicle-only signal information collecting device transmits the signal from the base station or repeater of each communication company installed within a predetermined area based on the current location of the vehicle at a preset time interval Sensing the signal information and the signal strength in real time; recording, by the vehicle-only signal information collecting device, signal information and signal strength of various communication companies sensed above in a database to match the predetermined area; Supporting the positioning server to measure the position coordinates of the user terminal based on the signal information and the signal strength recorded in the database in the vehicle-only signal information collecting device; characterized in that it comprises a.

In addition, in the state that the plurality of signal information that can be sensed within the predetermined area includes a Long Term Evolution (LTE) signal, a Wireless Fidelity (WIFI) signal, and a Bluetooth Low Energy (BLE) signal, the vehicle-only signal information collecting device is characterized in that it senses unique information and signal strength for each of the plurality of signal information as the signal information.

In addition, the vehicle-only signal information collecting device is characterized in that it acquires company information, channel information, frequency information, installation location information of a base station and a repeater as unique information of the LTE signal.

In addition, the vehicle-only signal information collecting device measures the current position of the vehicle at predetermined time intervals using a GPS (Global Positioning System) sensor installed therein, and includes a plurality of signal information sensed within the predetermined area and It is characterized in that the current position is determined by making a primary correspondence.

In addition, when a plurality of current position values of the vehicle measured by the GPS sensor are the same, the vehicle-only signal information collection device collects motion information of the vehicle using an IMU (Inertial Measurement Unit) sensor installed therein. It is characterized in that the speed, direction, gravity, acceleration, and altitude of the vehicle are determined by measuring and secondarily corresponding to the signal information sensed within the predetermined area.

In addition, in a state in which the signal information sensed by the sensing unit is recorded in the database to match the predetermined area, the positioning server acquiring specific signal information around the user terminal, a plurality of signal information recorded in the database It is characterized in that the signal information and coordinates corresponding to the specific signal information are checked, and a predetermined area matching the signal information is determined as the current location of the user terminal.

In addition, the vehicle-only signal information collecting device includes a plurality of LEDs installed on the outer front so that the signals can be seen from the front of the passenger seat of the vehicle, the plurality of LEDs are power supply, atmospheric pressure, GPS, and state information of the device It is characterized in that it indicates whether LTE signals, WIFI signals and BLE signals are being normally collected, including.

On the other hand, in the vehicle-only signal information collecting device for positioning of the present invention for achieving the above object of the present invention, in the vehicle-only signal information collecting device for collecting signal information for positioning, in the front of the passenger seat in the driving vehicle It is installed, and the signal information and signal strength transmitted from the base station or repeater of each carrier installed within a predetermined area based on the current location of the vehicle at preset time intervals can be attached to and detached from a plurality of USB ports and antenna coupling bolts a sensor unit for sensing through a plurality of antennas and communication units installed to a communication unit for communicating with the database; and recording the signal information and signal strength of various carriers sensed by the sensing unit in the database to match the predetermined area, and causing the positioning server to use a plurality of signal information and signal strength recorded in the database based on the user It is characterized in that it is configured to include; a processor that supports to measure the position coordinates of the terminal.

In addition, the plurality of USB ports and the antenna coupling bolts to which the plurality of antennas are detachably coupled are characterized in that they are installed at a predetermined distance between the rear and front surfaces of the vehicle-only signal information collecting device.

In addition, a plurality of LEDs are installed on the front of the vehicle-only signal information collecting device to indicate whether LTE signals, WIFI signals and BLE signals are being normally collected, including power supply, atmospheric pressure, GPS, and state information of the device. do it with

In addition, the PCB on which the communication unit, the processor, and the sensor unit are mounted is characterized in that the software is installed in the middle of the software and hardware to reduce the height of the device, and the software is made into hardware.

As described above, according to the vehicle-only signal information collection method and device for positioning of the present invention, first, in order to measure the exact location of a user who has a user terminal, LTE, WIFI, BLE, etc. within a predetermined area for positioning By sensing the type of signal information or the strength of signal information, there is an effect that signal information for each zone can be recorded in the database.

Second, in the present invention, not only the current location of the vehicle is measured using GPS, but also motion information of the vehicle is measured using an IMU sensor, thereby enabling more accurate and detailed recording.

Third, in the present invention, by applying the firmware to the PCB in the vehicle-only signal information collecting device for positioning, the device itself installed in the vehicle can be miniaturized, which is a very useful invention.

Other effects of the present invention will be clearly understood and understood by an expert or researcher in the art through the specific details described below, or during the process of implementing the present invention.

1 is a schematic block diagram of a vehicle-only signal information collecting apparatus for positioning according to an embodiment of the present invention;
2 is a flowchart sequentially showing a process up to recording a sensed signal according to an embodiment of the present invention.
3 is a view showing a predetermined area according to the location of the vehicle by time according to an embodiment of the present invention.
4 is a diagram illustrating a plurality of predetermined areas when GPS coordinates are the same according to an embodiment of the present invention;
5 (a) to (c) are a perspective view, a front view, and a plan view of a vehicle-only signal information collecting device for positioning according to an embodiment of the present invention.
6 is a diagram illustrating a process of tracking a location of a terminal according to an embodiment of the present invention.

Since the present invention can have various changes and can have various forms, specific embodiments are illustrated in the drawings and described in detail in the text. However, this is not intended to limit the present invention to the specific disclosed form, it should be understood to include all modifications, equivalents and substitutes included in the spirit and scope of the present invention.

Terms such as first, second, etc. may be used to describe various elements, but the elements should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, a first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

The terms used in the present application are only used to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present application, terms such as “comprise” or “have” are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification is present, and includes one or more other features or It should be understood that the existence or addition of numbers, steps, operations, components, parts, or combinations thereof does not preclude the possibility of addition.

Unless defined otherwise, all terms used herein, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

Terms such as those defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present application. does not

Hereinafter, with reference to the accompanying drawings, the operation state according to each configuration including a preferred embodiment according to the present invention will be described in detail as follows.

1 is a schematic block diagram of a vehicle-only signal information collecting apparatus for positioning according to an embodiment of the present invention.

According to this, as shown in FIGS. 1 and *, the vehicle-specific signal information collecting apparatus 100 for positioning of the present invention may largely include a communication unit 110 and a processor 120 .

First, the communication unit 110 of the signal information collecting device 100 dedicated to the vehicle may be implemented using various communication technologies.

That is, Wi-Fi (WIFI), WCDMA (Wideband CDMA), HSDPA (High Speed Downlink Packet Access), HSUPA (High Speed Uplink Packet Access), HSPA (High Speed Packet Access), Mobile WiMAX (Mobile WiMAX), WiBro (WiBro) , LTE (Long Term Evolution), 5G, Bluetooth, infrared data association (IrDA), Near Field Communication (NFC), Zigbee, wireless LAN technology, etc. can be applied.

In addition, when a service is provided by being connected to the Internet, TCP/IP, which is a standard protocol for information transmission on the Internet, may be followed.

The communication unit 110 can transmit and receive information to and from the database 200, the positioning server 300, and the user terminal 400 through the communication company 500, and the transmission and reception technology in the communication unit 110 is a sensor unit 150 to be described later. can be done separately from

In addition, the signal information collecting device 100 to which the present invention is applied includes a global positioning system (GPS) sensor 140, an inertial measurement unit (IMU) sensor 130, a sensor unit 150, and the like, which will be described later. do it with

On the other hand, the present invention collects signal information for positioning the user's user terminal 400 and records it in the database 200, including a desktop computer, a notebook computer, a workstation, a PDA, a web pad, a mobile phone, a smart remote control, Any digital device equipped with a memory means and equipped with a microprocessor to perform communication, such as various IOT main devices, and the like, which has computational capability, may correspond to the user terminal 400 according to the present invention.

The present invention intends to measure the exact location of a user who has the user terminal 400, and for this purpose, the signal information collecting device 100 provides signal information and corresponding signal information provided by base stations or repeaters of various communication companies 500, etc. It is to sense and collect the intensity of the field, and record it in the database 200 .

First, the signal information collecting device 100 of the present invention may be mounted in a vehicle, and specifically, it does not significantly interfere with the driver's view of the vehicle, and is installed in the front of the passenger seat in the vehicle so that the location information collection state can be comfortably and accurately checked It is preferable to do

As described above, the vehicle equipped with the signal information collecting device 100 to which the present invention is applied may be in operation, and the signal information collecting device 100 in the moving vehicle provides various signal information (ex LTE, WIFI, BLE, etc.) Of course, the intensity of each signal information can be sensed.

In some cases, the signal information collecting device 100 may be installed in the drone, and the signal information collecting device 100 installed in the flying drone may sense the signal information.

At this time, various signal information (ex LTE, WIFI, BLE, etc.) and signal strength sensed by the signal information collecting device 100 is a base station having a unique ID and installed in a place determined by each communication company 500 . Or the strength (ie, reception strength) for each signal information including the signal information transmitted from the repeater, and the strength of such various signal information and signals is later determined by the positioning server 300 at the user's corresponding user terminal 400. It can be used to accurately measure location information.

In other words, the location server 300 receives the signal information and the strength of the signal recorded in the database 200 with the support of the signal information collection device 100, and based on this, the communication company installed at a predetermined location It is possible to measure the exact coordinates of the current user terminal 400 at how far away from each of the base stations or repeaters of the 500 .

2 is a flowchart sequentially showing a process up to recording a sensed signal according to an embodiment of the present invention.

3 is a view showing a predetermined area according to the location of the vehicle by time according to an embodiment of the present invention.

Referring to this, the processor 120 in the signal information collecting device 100 to which the present invention is applied receives from the base station or repeater of each communication company 500 installed in a predetermined area based on the current location of the vehicle at preset time intervals. The transmitted signal information and signal strength may be sensed (S210).

In this case, the preset time interval may be different depending on the setting, and may be usually made at an interval of 1 second.

In addition, the preset time interval may vary depending on other conditions. For example, it may be difficult to sense signal information when it is raining or the weather is cloudy. ) can be reduced.

In addition, since more precisely sensed signal information is required in the middle of a city where there are many buildings and complexities, the time interval (ex 0.5 seconds) can be reduced even at this time.

In addition, since more precisely sensed signal information is required in an area with a large population, the time interval (ex 0.5 second) can also be reduced in this case.

On the other hand, the processor 120 in the signal information collecting device 100 transmits signal information and signal strength from the base station or repeater of each communication company 500 installed in a predetermined area based on the current location of the vehicle at the corresponding time. may be sensed, and the range of the predetermined area may be considered as an area of 50 m x 50 m or less, which may vary depending on the setting.

In addition, the range of the predetermined area may also vary according to other conditions.

For example, when it is raining or the weather is cloudy, the area range (eg 25m x 25m, etc.) of a predetermined area may be further reduced. That is, the moving distance of the vehicle should be increased for sensing of the same area.

In addition, the area range of a predetermined area can be further reduced in the middle of a city center where there are many buildings and a complex city center, and the area range of a predetermined area can be further reduced even in an area with a large population. If the opposite of the above conditions are met, the area range of the predetermined area may be further increased.

For reference, the signal information collecting device 100 may measure the current position (coordinate) of the vehicle at preset time intervals using a global positioning system (GPS) sensor 140 installed therein.

Also, referring to FIG. 3 , it can be confirmed that the position of the vehicle (signal information collecting device) at time t is coordinates (x1, y1). A predetermined area k1 corresponding to a rectangular range may correspond to the coordinates x1 and y1.

It can be confirmed that the position of the vehicle (signal information collecting device) is coordinates (x2, y2) at time t+1, which is a time point when the preset time has elapsed from the time t. A predetermined area k2 corresponding to a rectangular range may correspond to the coordinates x2 and y2.

As a result, FIG. 3 shows the result of measuring the position of the vehicle at every preset time interval (t, t+1) through the GPS sensor 140, and shows a predetermined area within a predetermined range based on the corresponding position.

4 is a diagram illustrating a plurality of predetermined areas when GPS coordinates are the same according to an embodiment of the present invention. 4 shows that the coordinates of the vehicle measured at time t and time t+1 are both x3 and y3.

When measuring coordinates through the GPS sensor 140 in the signal information collecting device 100, the same GPS coordinates may be indicated if they are located apart from each other but are close to each other. This is because, although the GPS sensor 140 can easily measure a location, accuracy may be reduced.

In this case, in the present invention, the IMU (Inertial Measurement Unit) sensor 130 may be used. Of course, in some cases, the IMU sensor 130 may be used regardless of the measurement of the GPS sensor 140 .

When the plurality of current position values for the vehicle measured through the GPS sensor 140 are the same, the processor 120 measures the vehicle's motion information using the IMU sensor 130 installed inside the signal information collection device 100 . can do. The IMU sensor 130 may sense various motion information such as vehicle speed, direction, gravity, acceleration, and altitude.

The motion information may be various, for example, as follows.

As shown in FIG. 4 , when the direction in which the vehicle moves is the front, the direction in which the vehicle moves, such as a right turn, a left turn, and a reverse direction, may be divided.

In addition, acceleration may be classified into a case in which the vehicle gradually accelerates, a case in which the vehicle suddenly stops, a case in which the vehicle moves at the same speed, and the like.

In addition, whether the vehicle is in a stopped state, when the speed of the vehicle is 30 km/h or less, when the speed of the vehicle is 100 km/h or more, and the like.

In addition, by measuring the current altitude where the vehicle is located, it is also possible to classify the vehicle as an altitude, such as whether the vehicle is located in an underground parking lot (or an underground tunnel, etc.), whether the vehicle is located in a rooftop parking lot, or whether the vehicle is located on a bridge.

Next, the signal information collecting apparatus 100 may record the sensed signal information of the base station or repeater of various communication companies 500 and the strength thereof in the database 200 to match a predetermined area (S220).

That is, the signal information collecting apparatus 100 may sense a signal, etc. existing in a predetermined area within a predetermined range from the current location through the sensor unit 150, and transmit the corresponding signal information to the predetermined area (location coordinates using the GPS sensor). etc.) and can be recorded in the database 200 .

Here, as a plurality of signal information that can be sensed within a predetermined area, a Long Term Evolution (LTE) signal, a Wireless Fidelity (WIFI) signal, and a Bluetooth Low Energy (BLE) signal may be included.

Meanwhile, the sensor unit 150 in the signal information collecting device 100 may sense unique information of the WIFI signal and signal strength as signal information. Since the WIFI signal includes unique information (unique ID) called the Mac address, the sensor unit 150 may sense the Mac address and the corresponding strength of the WIFI signal existing in the vicinity. When there are a plurality of WIFI signals present in the vicinity, the sensor unit 150 may sense unique information and signal strength for all of the plurality of WIFI signals.

In addition, the sensor unit 150 of the signal information collecting apparatus 100 may sense unique information and signal strength of the BLE signal as signal information. Since the BLE signal also includes unique information (unique ID) of the Mac address, the sensor unit 150 may sense the Mac address and the corresponding strength of the BLE signal existing in the vicinity. When there are a plurality of BLE signals present in the vicinity, the sensor unit 150 may sense unique information and signal strength for all of the plurality of BLE signals.

Among the various signal information sensed by the sensor unit 150 , the WIFI signal and the BLE signal have high positioning accuracy, but are geographically flexible. This is because the WIFI signal generator (router, etc.), beacon, etc. can be moved at any time.

Accordingly, another signal information, the LTE signal, can be used. In the case of LTE signals, since signal information is received from neighboring base stations or repeaters, mobility is low and positioning accuracy may be high.

The sensor unit 150 in the signal information collecting device 100 may sense unique information and signal strength of the LTE signal as signal information. Specifically, the sensor unit 150 includes communication chips of three communication companies (SK, KT, LGU+), and accordingly, from each base station or repeater of the three communication companies located in the vicinity of the signal information collection device 100 . It will be able to receive LTE signals.

In addition, the signal information collection apparatus 100 may sense and classify LTE signals received from each base station or repeater for each channel (eg 2600ch, 2500ch, etc.), and may also distinguish a frequency band in each channel.

As a result, the sensor unit 150 in the signal information collecting device 100 includes a company name (ex SK, KT, LGU+), a channel name (ex 2600ch, 2500ch, etc.), a frequency band as LTE signal-related signal information (unique information). , installation location information, etc. can be acquired, and the strength of a signal for each can be sensed.

In addition, while the vehicle is moving, the sensor unit 150 in the signal information collecting device 100 at intervals of a preset time (eg 1 second, etc.) transmits signal information transmitted from a base station or repeater of each communication company installed in a predetermined area. (WIFI, BLE, LTE) can be sensed, and it can be recorded in the database 200 by matching it to correspond to a predetermined area (S220).

That is, the signal information collection device 100 has signal information sensed in a predetermined area (unique information and signal strength of WIFI signal, unique information and signal strength of BLE signal, unique information and signal strength of LTE signal, etc.) may be recorded in the database 200 by first correspondence with the current position value (GPS coordinate value) of the vehicle (signal information collecting device). In the database 200 , signal information sensed in a predetermined area is recorded for each sensed coordinate value.

In addition, the signal information collection device 100 is the vehicle motion information (speed, direction, gravity, acceleration, altitude, etc. of the vehicle sensed using the IMU sensor) of signal information and signal strength of various communication companies sensed in a predetermined area. It can be recorded in the database 200 by secondary correspondence with . As described above, this case may be considered when there are a plurality of predetermined areas in which the primarily considered GPS coordinate values are not distinguished, and in some cases, may be considered regardless of the GPS measurement values.

On the other hand, according to an embodiment, when signal information in an adjacent predetermined area among a plurality of predetermined areas formed for each predetermined time according to the location of the vehicle (using the GPS sensor) differs by a predetermined value or more, the IMU sensor (130) may also be used.

That is, when signal information between adjacent predetermined areas is significantly different, it may be considered that a separate problem has occurred.

Specifically, as shown in FIG. 3, the signal information in the predetermined area k1 corresponding to the time t and the signal information in the predetermined area k2 corresponding to the time t+1 are compared with each other, and the corresponding information is determined to be more than a certain value. It can be checked whether there is a difference. In this case, a predetermined area with a predetermined time interval (ex 1 second - t, t+1) may be set as an adjacent predetermined area, but in some cases, a predetermined area with a certain distance may be considered.

For example, a case of a widely spread plain without a high structure such as a building or a mountain may be considered, since signal information sensed at two points separated by a certain distance may be similar because there are no obstacles.

Accordingly, a plurality of regions that exist between i) a predetermined area (k1) corresponding to time t and ii) a predetermined area (k10) corresponding to time t+10 positioned with more than a preset time (ex 10 seconds) therebetween It is also possible to set predetermined areas k1, k2, k3 to k10 of , as adjacent areas.

In addition, when determining whether there is a difference between signal information in an adjacent predetermined area (two or more areas) by more than a predetermined value, the predetermined value can be determined according to the signal strength, for reference, specific signal information (ex If the 2.1 GHz band frequency in the 2600 channel of LGU+ is not sensed in any one of the predetermined zones (two or more zones), this embodiment may not be usable.

For example, the intensity of a specific WIFI signal in a predetermined area k1 corresponding to time t is compared with the strength of a specific WIFI signal in a predetermined area k2 corresponding to time t+1, and the difference is a predetermined value It is possible to determine whether it is abnormal or not.

In addition, it is also possible to compare the strength of a specific LTE signal and a specific BLE signal between the predetermined area (k1) and the predetermined area (k2).

According to another embodiment of the present invention, the signal information collecting apparatus 100 is signal information (uniqueness of the WIFI signal) of a certain size sensed in a predetermined area (ex k1, k2, r1, r2, etc.) measured for a predetermined time Based on the number of information and signal strength, unique information and signal strength of BLE signal, LTE signal unique information and signal strength, etc.) , you can decide whether to quit or not. This is because there is no need to record in the database 200 when the signal strength is low. A detailed description in this regard is as follows.

For convenience of explanation, it can be assumed that the signal information collecting device 100 measures each signal (wifi signal, BLE signal, LTE signal, etc.) and strength every 1 second, and starts the measurement while the device 100 is turned on from off. there is. That is, in the off state, no signal measurement was made, and there was also no signal recorded in the database 200 .

As a result of 10 measurements in 10 seconds, each of 10 signal strengths (ex A1, A2, A3 ... A10) can be measured for the wifi signal with ID a. The above signal is only an example, and a plurality of other signals (wifi signal with ID b, BLE signal with ID c, LTE signal of KT company, etc.) may be measured. In addition, the measurement period/number of 10 seconds and 10 times may also be changed according to a setting (eg, a shorter time, more measurement of a number of times in an area with a larger population than an area without a population).

When a predetermined number (ex 4) or more among the strengths (ex A1, A2, A3 ... A10) of the ten signals related to the wifi signal having an ID of a is greater than the first weight, the signal information collection device 100 can start recording in the database 200 by matching the 10 signal strengths to the wifi signal having the ID a from the time T1 when the signal strength is A1. When the number of counted signal strengths (> first weight) is greater than a predetermined number (4), the database 200 starts recording.

Here, A1 should correspond to the case where it is greater than the first weight, and when A1 is less than the first weight, number 10 is selected based on the case of greater than the first weight among the signal strengths (A2, A3, etc.) of the next time. will be measured again. That is, the signal information collection device 100 measures the strength of 10 signals starting from the signal strength (when greater than the first weight) as a reference in a state that is not recorded in the database 200, and, accordingly, the database 200 can be recorded in

The signal information collecting device 100 satisfies the above condition and when the database 200 recording starts for a specific signal (wifi signal with ID a), it is stored in the database 200 for the specific signal until the end condition is satisfied. It can be recorded continuously. The termination conditions will be discussed below.

Similarly, as a result of 10 measurements for 10 seconds, the signal information collecting device 100 may measure each of the ten signal strengths (ex A31, A32, A33 ... A40) for the wifi signal having an ID of a. The measurement period/number of 10 seconds and 10 times may also be changed according to a setting (eg, a shorter time, a greater number of measurements in an area with a larger population than in an area without a population).

When a predetermined number (ex 8) or more among the strengths (ex A31, A32, A33 ... A40) of the 10 signals related to the wifi signal having an ID of a is smaller than the second weight, the signal information collection device 100 may end the database 200 recording of the wifi signal having the ID a from the time T31 when the signal strength is A31. When the counted number of signal strengths (< second weight) is greater than a predetermined number (8), the database 200 recording is terminated.

Here, the A31 should correspond to a case that is smaller than the second weight, and when A31 is greater than or equal to the second weight, it is 10 based on the case of less than the second weight among the signal strengths (A32, A33, etc.) of the next time. We will measure the number anew.

In addition, the magnitude relationship between the first weight related to the start of recording and the second weight related to the end of recording for the database 200, and the magnitude relationship of each predetermined number (ex 4, 8) serving as a reference may be different depending on the case. can However, in most cases, the first weight is larger than the second weight so that the recording to the database 200 is not too complicated and easy. The process may be applied to multiple wifi signals, multiple BLE signals, and multiple LTE signals. Additionally, it may also be applied to a signal measured by the IMU sensor 130 .

Depending on whether the corresponding signal (wifi, BLE, LTE) is recorded in the database 200, the color of the LED, which will be described later, may be different.

5A to 5C are perspective views, front views, and plan views of a vehicle-only signal information collecting device for positioning according to an embodiment of the present invention.

Looking at this, as shown in FIGS. 5(a) to 5(c), on one side of the front upper part and the upper rear part of the signal information collecting device 100 to which the present invention is applied, a plurality of USB ports 170a and an antenna The coupling bolts 170b have a form in which they are distributed and installed at a predetermined interval.

In addition, the plurality of USB ports 170a and the antenna coupling bolt 170b sense the signal information and signal strength transmitted from the base station or repeater of each communication company 500 through the communication unit 110 and the sensor unit 150. A plurality of antennas 180 to transmit to have a detachable form.

Accordingly, in the sensor unit 150 installed in the signal information collecting device 100, the base station of each communication company 500 installed in a predetermined area based on the current location of the vehicle at each preset time interval during the operation of the vehicle. Alternatively, signal information and signal strength transmitted from the repeater may be accurately transmitted and sensed through the plurality of antennas 180 and the communication unit 110 described above.

At this time, unlike the method in which the plurality of USB ports 170a and the antenna coupling bolt 170b are installed on any one of the front, right, left, and right surfaces of the signal information collecting device 100 in the prior art, the front upper part and the By distributing and installing at a predetermined interval on one side of the rear of the upper surface, the overall height of the signal information collecting device 100 can be lowered by that much, so that the signal information collecting device 100 installed in the front part of the passenger seat while driving the vehicle It is possible to prevent the driver's view from being blocked in advance.

In addition, the signal information collecting device 100 to which the present invention is applied further includes a plurality of LEDs (190).

Such a plurality of LEDs 190 performs a function of indicating whether LTE signals, WIFI signals, BLE signals, etc., including power supply status, atmospheric pressure status, GPS status, and device status information, are normally being collected.

In this case, the plurality of LEDs 190 are installed at a predetermined interval in the lower front portion as shown in FIG. did it

Therefore, in the prior art, since the plurality of LEDs 190 are installed in a plurality of rows on the upper surface of the signal information collecting device 100 so that light is irradiated upward when various signal information is collected, light on the windshield when driving at night While there is a problem in that the reflection interferes with the driver's view, and in order to check whether each signal information is well received, the driver has to directly check the status of the LEDs installed on the upper surface of the device, whereas in the present invention, the front downward direction Since the light irradiated from the plurality of LEDs 190 is directed to the front of the passenger seat when various signal information is collected by installing it at a predetermined interval, it is possible to completely solve the driver's vision obstruction during night driving, and each signal information is It has the advantage of being able to conveniently check whether the reception is well received from the passenger seat.

In addition, a plurality of LEDs 190 indicating whether the LTE signal, WIFI signal and BLE signal are normally collected, including power supply, atmospheric pressure, GPS and state information of the device, whether to receive each state and signal information At least two different color LEDs (for example, a red LED for displaying abnormal or non-receiving status, a green LED for displaying normal operation and normal reception status, etc.) or 3 It includes a form in which color LED groups (7 groups corresponding to the number of status information check and reception signal collection status check number in the drawing) are installed in one or two rows at a predetermined interval.

At this time, the LED indicating the power supply state in which only one LED is installed among the LEDs 190 arranged in each group operates on/off, and includes the remaining atmospheric pressure, GPS and state information of the device, LTE signal, WIFI signal And LEDs installed in two colors to indicate whether or not the BLE signal is received and its strength, respectively, blink in response to the reception frequency and display different light brightness according to the strength of reception information, etc. In the case of a three-color LED, Each state can be represented by light of a different color.

Accordingly, the driver, etc. can check the collection status of signal information through the color of the LED light, the number of blinks, or the intensity of the light, and the collection status is very good, good, normal, low low, or no signal. It can be checked by classifying it by status, etc.

In addition, in the signal information collection device 100, among the LTE signals, a first specific LTE signal (ex SK LTE), a second specific LTE signal (ex KT LTE), etc. can be set, and the LED unit ( 160) to display the collection status in different columns. This may be applied to WIFI and BLE signals such as a first specific WIFI signal, a second specific WIFI signal, a first BLE signal, and a second BLE signal.

In addition, in the present invention, the communication unit 110 , the processor 120 , the IMU sensor 130 , the GPS sensor 140 , and the sensor unit 150 provided in the signal information collecting device 100 are directly mounted on the PCB. As an intermediate between software and hardware, firmware that turned software into hardware was further mounted.

As such, when firmware is further mounted on the PCB provided with the communication unit 110 , the processor 120 , the IMU sensor 130 , the GPS sensor 140 and the sensor unit 150 , the volume is large and the height is relatively high. Since it is not necessary to install components on the PCB, the overall height of the signal information collecting device 100 can be greatly reduced.

That is, in the present invention, as described above, the plurality of USB ports 170a and the antenna coupling bolt 170b are distributed and installed at a predetermined interval on one side of the front upper part and the upper rear part of the signal information collecting device 100. At the same time as zooming, the overall height of the signal information collecting device 100, which had a height of about 90 mm in the prior art, can be greatly reduced to about 35 mm by installing firmware made of software on the PCB. It is possible to completely prevent the signal information collecting device 100 installed in the front part of the passenger seat from blocking the driver's view while driving.

On the other hand, after the signal information collection device 100 to which the present invention is applied completes recording (S220) the signal information sensed in a predetermined area in the database 200, the positioning server 300 records it in the database 200 It is supported to measure the position coordinates of the user terminal based on the signal information and the signal strength (S230).

In this regard, referring to FIG. 6 , the detailed description is as follows.

6 is a diagram illustrating a process of tracking a location of a terminal according to an embodiment of the present invention.

At this time, of course, in the database 200, signal information and intensity sensed for each predetermined area will be recorded.

First, a user of the user terminal 400 may report an emergency situation to a fire station, a police station, or the like. The communication company 500 may turn on a software app installed inside the corresponding user terminal 400 , and accordingly, the user terminal 400 may sense a surrounding signal.

The peripheral signals sensed by the user terminal 400 correspond to signals such as WIFI, BLE, and LTE as described above. That is, the user terminal 400 may check unique information and signal strength of surrounding WIFI, BLE, and LTE signals (hereinafter referred to as 'specific signals') measured around the current location.

Next, the user terminal 400 may transmit the information of the specific signal to the corresponding communication company (500, ex SK, KT, LGU+). Next, the communication company 500 may transmit the information of the specific signal to the positioning server 300 .

Positioning server 300 is interlocked with the database 400 to check the signal information and strength for each predetermined area recorded in the database 400, so you can search for signal information corresponding to the specific signal information among a plurality of signal information there is.

Since the positioning server 400 can check the signal information corresponding to the specific signal, and accordingly, a matching specific predetermined area can also be searched, so the positioning server 400 determines that the user terminal 400 is currently located. It is possible to search for an estimated specific predetermined area.

In fact, the positioning server 300 may be used in the National Police Agency or a fire department, etc., and a police officer, a firefighter, etc. will be able to quickly and accurately determine the location of the user terminal 400 to protect the user's safety.

The embodiments according to the present invention described above may be implemented in the form of program instructions that can be executed through various computer components and recorded in a computer-readable recording medium. The computer-readable recording medium may include program instructions, data files, data structures, etc. alone or in combination.

The program instructions recorded on the computer-readable recording medium may be specially designed and configured for the present invention, or may be known and available to those skilled in the computer software field. Examples of the computer-readable recording medium include a hard disk, a magnetic medium such as a floppy disk and a magnetic tape, an optical recording medium such as a CD-ROM and DVD, and a magneto-optical medium such as a floppy disk. media), and hardware devices specially configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like.

Examples of program instructions include not only machine language codes such as those generated by a compiler, but also high-level language codes that can be executed by a computer using an interpreter or the like. The hardware device may be configured to operate as one or more software modules for carrying out the processing according to the present invention, and vice versa.

In the detailed description of the present invention described above, although it has been described with reference to preferred embodiments of the present invention, those skilled in the art or those having ordinary knowledge in the art will have the spirit of the present invention described in the claims to be described later. And it will be understood that various modifications and variations of the present invention can be made without departing from the technical scope.

100: signal information collecting device
110: communication unit 120: processor
130: IMU sensor 140: GPS sensor
150: sensor unit 160: LED unit
170a: USB port 170b: Antenna coupling bolt
180: antenna 190: LED
200: database
300: positioning server
400: user terminal
500: carrier

Claims (8)

In the vehicle-only signal information collection method for collecting signal information for positioning,
When the vehicle is running while the vehicle-specific signal information collection device is mounted in the vehicle,
The vehicle-only signal information collecting device senses the signal information and signal strength transmitted from the base station or repeater of each communication company installed in a predetermined area based on the current location of the vehicle at a preset time interval in real time step of;
recording signal information and signal strength of various communication companies sensed by the vehicle-only signal information collecting device in a database to match the predetermined area;
In the signal information collecting device, supporting the positioning server to measure the position coordinates of the user terminal based on the signal information and the signal strength recorded in the database; including;
The vehicle-only signal information collecting device includes a plurality of LEDs installed on the outer front so as to be visible for each signal from the front of the passenger seat of the vehicle,
The plurality of LEDs, including power supply, atmospheric pressure, GPS and state information of the device, the LTE signal, the WIFI signal and the BLE signal, characterized in that it indicates whether the signal is normally collected vehicle-only signal information collection method for positioning.
The method according to claim 1,
In the state that the plurality of signal information that can be sensed within the predetermined area includes a Long Term Evolution (LTE) signal, a Wireless Fidelity (WIFI) signal, and a Bluetooth Low Energy (BLE) signal,
The vehicle-only signal information collecting device senses unique information and signal strength for each of the plurality of signal information from the signal information,
Vehicle-only signal information collection method for positioning, characterized in that acquiring company information, channel information, frequency information, installation location information of the base station and repeater as unique information of the LTE signal.
The method according to claim 1,
The vehicle-only signal information collecting device,
Measuring the current location of the vehicle at preset time intervals using a GPS (Global Positioning System) sensor installed inside, and determining the current location by first matching it with a plurality of signal information sensed within the predetermined area,
When a plurality of current position values for the vehicle measured through the GPS sensor are the same, the motion information of the vehicle is measured using an IMU (Inertial Measurement Unit) sensor installed therein, and it is sensed within the predetermined area. A vehicle-only signal information collection method for positioning, characterized in that the vehicle's speed, direction, gravity, acceleration, and altitude are determined by secondary correspondence with the signal information.
The method according to claim 1,
In a state in which the sensed signal information is recorded in the database to match the predetermined area,
The positioning server that has obtained specific signal information around the user terminal,
The National Police Agency that checks the signal information and coordinates corresponding to the specific signal information among the plurality of signal information recorded in the database, determines a predetermined area matching it as the current location of the user terminal, and then estimates the location of the terminal user; or Vehicle-only signal information collection method for positioning, characterized in that provided to the fire department.
The method according to claim 1,
The vehicle-only signal information collecting device,
Based on the signal strength sensed in real time, the vehicle-only signal information collection method for positioning, characterized in that determining whether to record the strength of the signal in the database to match the predetermined area.
In the vehicle-only signal information collecting device for collecting signal information for positioning,
A plurality of USB ports installed in front of the passenger seat in a running vehicle and transmitted from a base station or repeater of each carrier installed in a predetermined area based on the current location of the vehicle at preset time intervals and signal strength And a sensor unit for sensing through a plurality of antennas and communication units that are detachably installed on the antenna coupling bolt;
a communication unit for communicating with the database; and
The signal information and signal strength of various communication companies sensed by the sensor unit are recorded in the database to match the predetermined area, and based on the plurality of signal information and signal strength recorded in the database by the positioning server, the user terminal A processor that supports measuring the location coordinates of
The plurality of USB ports and the antenna coupling bolts to which the plurality of antennas are detachably coupled are vehicle-only signal information for positioning, characterized in that they are installed at a predetermined interval on the rear and front surfaces of the vehicle-only signal information collecting device. collection device.
7. The method of claim 6,
On the front of the vehicle-only signal information collecting device,
Vehicle-only signal information collection device for positioning, characterized in that a plurality of LEDs are installed to indicate whether LTE signals, WIFI signals and BLE signals are being normally collected, including power supply, atmospheric pressure, GPS and state information of the device.
7. The method of claim 6,
A vehicle-specific signal information collecting device for positioning, characterized in that the communication unit, the processor, and the PCB on which the sensor unit is mounted, a firmware obtained by converting software into hardware is mounted.

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